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    • 专利摘要:
    self-centering hood set for crop line dividers of an articulated row cutting platform is described a self-centering hood set for articulated row cutting platform that comprises a hood supported on a base element, in which the base element is positioned by springs for self-centering in relation to the two articulated sections of the harvest head.
    公开号:BR102013024085B1
    申请号:R102013024085
    申请日:2013-09-19
    公开日:2020-02-04
    发明作者:Van Meter Douglas；M Bomleny Duane；L Vandeven Michael；E Krehbiel Nathan
    申请人:Deere & Co；
    IPC主号:
    专利说明:

    SELF-CENTRALIZING BONNET SET FOR GROWING LINE DIVIDERS OF AN ARTICULATED ROW CUTTING PLATFORM
    Field of the Invention [001] This invention relates to row cutting platforms. More particularly, it refers to hoods for row-cut platforms. Foundations of the Invention [002] Row cutting platforms, such as corn collectors, are being manufactured in ever-increasing quantities. Combine harvesters are made bigger and more powerful, and capable of carrying larger harvest heads.
    [003] A problem with these larger harvest heads is their inability to properly harvest crops located in undulating terrain. The larger the harvest heads, the harder it is for them to conform to the surface of the field.
    [004] Therefore, what is needed is a better row-cut platform for a combined harvester that is able to follow undulating terrain in an agricultural field more precisely and able to harvest the crop more efficiently with less problems of crop obstruction or crop damage.
    [005] It is an objective of this invention to provide a row cutting platform like this.
    Summary of the Invention [006] In accordance with one aspect of the invention, a self-centering hood assembly is provided for crop line dividers of an articulated row cutting platform, the articulated row cutting platform having a first chassis section and a second section of chassis pivotally coupled together, in which the self-centering hood assembly comprises: a base element, a hood coupled to the base element,
    Petition 870190095117, of 09/23/2019, p. 7/34 / 24 a first spring coupled between the first chassis section and the base element, and a second spring coupled between the second chassis section and the base element, in which the first spring and the second spring are arranged to reposition the hood in relation to both the first chassis section and the second chassis section when the first chassis section and the second chassis section pivot in relation to each other.
    [007] The first spring can be coupled to a first cultivation line divider in the first chassis section and a second spring can be coupled to a second cultivation line divider immediately adjacent to the first cultivation line divider, and the second crop line divider can be mounted on the second chassis section.
    [008] The base element can additionally comprise guide elements that force the base element to slide laterally in relation to the first chassis section and the second chassis section when the first chassis section and the second chassis section pivot one in relation to the other.
    [009] The guide elements can be arranged on opposite sides of the base element.
    [0010] The first spring and the second spring can be coils.
    [0011] The first spring and the second spring can be arranged to extend and retract in a direction, generally, parallel to a longitudinal extension of the articulated row cutting platform.
    [0012] The first spring and the second spring can be fixed on the opposite side sides of the base element.
    [0013] The base element can be coupled to the hood by a joint, and the joint can force the hood to pivot in relation to the base element around a laterally extending geometric axis. [0014] The joint can be arranged above the first spring and the second spring.
    Petition 870190095117, of 09/23/2019, p. 8/34 / 24 [0015] The joint can be arranged behind the first spring and the second spring.
    [0016] The base element can be arranged immediately above a pivot geometry axis, pivot geometry axis around which the first chassis section is forced to pivot in relation to the second chassis section.
    [0017] The first spring can be arranged on one side of the pivot geometry axis and the second spring can be arranged on the other side of the pivot geometry axis.
    [0018] The first spring and the second spring can be arranged above the pivot geometric axis.
    Brief Description of the Drawings [0019] Figure 1 is an elevated left side perspective view of a corn collector according to the present invention.
    [0020] Figure 2 is a fragmentary elevated left side perspective view of the left half of the corn collector of Figure 1.
    [0021] Figure 3 is a lower perspective view from the fragmentary view of Figure 2.
    [0022] Figure 4A is a fragmentary elevated left side perspective view of the left half of the corn collector in Figure 1 showing two adjacent crop line dividers and a point in Figure 2, and with the other elements removed.
    [0023] Figure 4B is a detailed close-up view of the articulation in Figure 4A that supports the point and the hood.
    [0024] Figure 5 is a low left side rear perspective view of the two crop line and point dividers in Figures 4A and 4B.
    [0025] Figure 6 is a perspective view of the right side slightly lowered from the two crop line and point dividers in Figures 4A, 4B and 5.
    Petition 870190095117, of 09/23/2019, p. 9/34 / 24 [0026] Figure 7 is a fragmentary right-side rear perspective view of the two crop line dividers at the point of Figures 4A, 4B, 5 and 6 with the hood added.
    [0027] Figure 8 is an elevated left side perspective view of the corn collector in Figure 1 showing details of the drill joint on the left side and the hood of Figure 7.
    [0028] Figure 9 is a fragmentary elevated left side perspective view of the arrangement in Figure 8 with the drill bit tube on the left side to illustrate its internal construction.
    [0029] Figure 10 is the view of Figure 9 with a garbage seal removed.
    [0030] Figure 11 is the view of Figure 10 with a drill pipe stub removed.
    [0031] Figure 12 is Figure 11 taken at a slightly elevated angle to show the joint between adjacent drill channels.
    [0032] Figure 13 is a fragmentary elevated right side perspective view of the drill channel of Figure 12 with the drill removed.
    [0033] Figure 14 is a view of the drill channels and bottom walls with the drill removed taken from approximately the same perspective as in Figure 12.
    [0034] Figure 15 is a highly elevated left side rear view of the corn collector of Figures 13 and 14 showing the sliding rear wall joint and the rear hinge that couples the left chassis section and the central chassis section with a hydraulic circuit and an upper elongated element of the chassis of the left chassis section removed for ease of illustration.
    [0035] Figure 16 is a cross sectional view of the corn collector taken on section line A - A of Figure 1. Section line A - A defines a cutting plane that extends both vertically and from the front
    Petition 870190095117, of 09/23/2019, p. 10/34 / 24 to the rear, and it is normal in relation to the longitudinal extension of the central chassis section.
    [0036] Figure 17 is the view of Figure 16 with an arm of the cultivation line divider on the left side removed to show a stalk roll of the cultivation line divider immediately adjacent to the pivot geometric axis.
    [0037] Figure 18 is a detail of the view of Figures 16 - 17 showing the central drill and pivot joint between the left chassis section and the central chassis section.
    [0038] Figure 19 is a schematic view of a universal joint that couples drive shafts that drive crop line dividers in the left chassis section and crop line dividers in the central chassis section.
    Detailed Description [0039] In relation to Figure 1, a corn collector 100 is shown with a chassis 102 that extends laterally and, in general, is perpendicular to the direction of displacement "V" of the corn collector as it travels through the crop harvest field.
    [0040] The corn collector 100 additionally comprises a conveyor 104 that substantially extends the entire length of the corn collector 100 and, in general, perpendicular to the displacement direction of displacement "V".
    [0041] The corn collector 100 further comprises a plurality of crop line dividers 100 fixed on the chassis 102 and extending forward from it. In Figure 1, these crop line dividers are covered by corresponding dots 106 and hoods 108 arranged behind dots 106 that serve to divide the crop into individual rows and feed the crop in the gap between the arms 170 of the adjacent crop line dividers. 101. These crop line dividers 101 are seen in more detail in Figures 2 - 7.
    Petition 870190095117, of 09/23/2019, p. 11/34 / 24 [0042] Chassis 102 comprises three laterally extending chassis sections 110, 112, 114 that are pivotally coupled together to allow the three chassis sections to pivot up and down relative to each other when around a pivot geometric axis 116 and a pivot geometric axis 118 that generally extends parallel to the ground and parallel to the direction of displacement "V".
    [0043] The chassis 102 comprises a left chassis section 110, a central chassis section 112 and a right chassis section 114. The left chassis section 110 is pivotally coupled to the central chassis section 112 to force the two chassis sections to pivot one in relation to the other around the pivot geometry axis 116. The pivot geometry axis 116 extends, in general, from front to rear and parallel to the “V” direction of travel. The pivot geometry axis 116 is parallel to the pivot geometry axis 118.
    [0044] The conveyor 104 is a drill type conveyor; it consists of three elongated sections of the conveyor that extend horizontally and perpendicular to the direction of displacement “V”.
    [0045] The three sections of the conveyor comprise a section of the left conveyor 120, a section of the central conveyor 122 and a section of the right conveyor 124. The conveyor 124 is driven in rotation by at least one motor (not shown). Each of the sections of the conveyor 120, 122, 124 is composed of an elongated tube in which a spiral reed is welded. The right (inner) end of the left conveyor section 120 and the left end of the central conveyor section 122 are coupled with a universal joint 130. The left (inner) end of the right conveyor section 124 and the right end of the conveyor section center 122 are coupled with a universal joint 132. Universal joints are preferred because they allow the conveyor sections to rotate synchronously around their longitudinal geometric axes being driven by the motor in
    Petition 870190095117, of 09/23/2019, p. 12/34 / 24 one or both ends, at the same time that they are arranged at an angle to each other as each of the chassis sections pivots with respect to the others around the pivot geometric axis 116 and the axis geometric pivot 118.
    [0046] The left carrier section 120 is supported on a bearing 134 located on an outer end of the left carrier section 120. Bearing 134 is attached to the left chassis section 110. Bearing 134 supports the outer end of the conveyor section left 120 for rotation. The bearing 134 also allows the outer end of the left conveyor section 120 to translate with respect to an end wall 137 of the left chassis section 110 in a direction parallel to a longitudinal geometric axis of the left conveyor section 120.
    [0047] As the left chassis section 110 pivots down from the central chassis section 112 around pivot geometry axis 116, bearing 134 supports left conveyor section 120 for rotation, but also allows the section of the left conveyor 120 translates along its rotating geometric axis to the right in relation to the left chassis section 110.
    [0048] Likewise, as the left chassis section pivots upwardly relative to the central chassis section 112 around pivot geometry axis 116, bearing 134 allows the left conveyor section 120 to move along its geometry axis rotating to the left in relation to the left chassis section 110.
    [0049] The translation support provided by the bearing 134 for the outer end of the left conveyor section 120, therefore, eliminates the axial tension in the universal joint 130 as the left chassis section 110 pivots up and down.
    [0050] The central conveyor section 122 is supported at its left end on a bearing 136. The bearing 136 is supported on a
    Petition 870190095117, of 09/23/2019, p. 13/34 / 24 clamp 138 which is attached to the left end of the central chassis section 112, and extends forward from it. The central conveyor section 122 is supported at its right end on a bearing 140. The bearing 140 is supported on a clamp 142 which is fixed at the right end of the central chassis section 112, and extends forward from it. The right conveyor section 124 is supported on a bearing 150 that supports the outer end of the right conveyor section 124 for rotation. Bearing 150 is the counterpart of bearing 134 on the other side of corn collector 100.
    [0051] The corn collector 100 additionally comprises a generally vertical rear wall 152 that extends substantially the entire width of the corn collector 100. The central conveyor section 122 provides an opening 154 in the rear wall 152 to allow corn collector 100 is supported in a feeder chamber (not shown) of a combined harvester.
    [0052] All sections of the conveyor rotate in the same direction. However, due to the different angles of the drill vanes, the cultivation is moved in different directions as the sections of the conveyor rotate. A bit of drill 156 which is attached to an elongated tube 158 of the left conveyor section 120 transports the crop inward towards the center of the corn collector 100 from left to right. A vane of drill 160 that is attached to an elongated tube 162 of the right conveyor section 124 carries cultivation inward towards the center of the corn collector 110 from right to left. A drill vane 164 is attached to an elongated tube 166 of the central conveyor section 122 and has two sets of optically twisted drill vane, such that the drill vanes at opposite ends of the central conveyor section 122 conduct cultivation in directions opposite towards the middle of the central conveyor section 122.
    Petition 870190095117, of 09/23/2019, p. 14/34 / 24 [0053] Each of the three chassis sections 110, 112, 114 can pivot, in general, vertically, both up and down, relative to its adjacent chassis section.
    [0054] The chassis sections 110, 114 at the ends of the corn collector 100 can pivot upwards in relation to the central chassis section 112, as shown by the left chassis section 110, which is pivoted upwards in relation to the central chassis 112 in Figure 1.
    [0055] Likewise, each chassis section can pivot down in relation to its adjacent chassis section, as shown by the right chassis section 114, which is pivoted down in relation to the central chassis section 112. The chassis section left 110 and right chassis section 114 can pivot up 10 ° above central chassis section 112. Left and right chassis sections can pivot down 10 ° below central chassis section 112.
    [0056] Hereinafter in this description, only the left half of the corn collector 100 will be discussed. This is done for the sake of illustration. The corn collector itself is symmetrical around a vertical plane and from front to rear that extends through the center of opening 154. All the explanations given below regarding the operation or construction of the left half of the corn collector 100 are equally applicable to the right half of the corn collector 100, since the left half and the right half are the same, with one difference: the right half of the corn collector 100 is constructed in the form of a mirror image in relation to the left half of the corn collector 100.
    [0057] In relation to Figures 2 - 7, the left half of the corn collector 100 is shown with several of the points 106 and hoods 108, as well as several crop line dividers 101, removed in order to illustrate the relationship between the points and the hoods and crop line dividers, as well as the chassis elements that support these parts of the corn collector 100.
    Petition 870190095117, of 09/23/2019, p. 15/34 / 24
    Two of the crop line dividers 101, identified below as 101A and 101B, are arranged immediately adjacent to each other on opposite sides of the pivot geometric axis 116. They are identical in every respect to the other 22 crop line dividers. corn collector 100 which are not all individually illustrated in this document.
    [0058] Each of the left chassis section 110 and the central chassis section 112 comprises an elongated tool bar 168 to which cultivation line dividers 101 are attached. The elongated toolbars 168 extend, in general, perpendicular to the direction of displacement "V" and extend parallel to the ground. Each of the cultivation line dividers 101 includes two forward extending arms 170 that are mounted on a gearbox of the cultivation line divider 178, and extend forward from there. A concentration stream 174 is arranged at the top of each of the arms 170. Each cultivation line divider 101 has two stem rolls 176, with each stem stem 176 placed side by side, partially underlying and between each of the arms 170 .
    [0059] The stem rollers extend forward from the cultivation line divider gearbox 178 arranged at the rear of the cultivation line divider 101, and are rotated by it. The gearbox of the crop line divider 178 is fixed to the elongated tool bar 168 and the arms 170, the concentration chains 174 and the stem rollers 176 are arranged in a cantilever forward from the gearbox of the divider of the cultivation line 178 and the elongated tool bar 168.
    [0060] The left chassis section 110 and the central chassis section 112 include elongated chassis elements 180 arranged at the rear and generally parallel to the elongated tool bars 168. The elongated chassis elements 180 and the elongated tool bars 168 they are fixed with pillars 181 that extend from the front to the rear. The supports 181 are fixed, at their front ends, to the elongated tool bars 168 and, in their
    Petition 870190095117, of 09/23/2019, p. 16/34 / 24 rear ends, on the elongated chassis elements 180. The pillars 181 hold the elongated tool bars 168 and the elongated chassis elements 180 in fixed positions with respect to each other.
    [0061] The left chassis section 110 and the central chassis section 112 also include elongated upper chassis elements 182 arranged along the top part of the corn collector 100.
    [0062] The left chassis section 110 and the central chassis section 112 also include vertical chassis elements 184 that extend between their respective elongated chassis elements 180 and elongated upper chassis elements 182, and are fixed thereto.
    [0063] A front pivot 186 is attached to the adjacent ends of the elongated tool bars 168 in the left chassis section 110 and in the central chassis section 112, and extends between them. A rear hinge 188 is attached to the adjacent ends of the elongated chassis elements 180 in the left chassis section 110 and in the central chassis section 112, and between them. The front linkage 186 and the rear linkage 188 define the pivot geometric axis 116 between the left frame section 110 and the central frame section 112.
    [0064] The joints are located in relation to each other, in such a way that the pivot geometric axis 116 extends from front to back and, in general, horizontally. Although the pivot geometric axis 116 is generally horizontal, it tilts slightly downward as it extends forward. The pivot geometry axis 116 passes between the two adjacent crop line dividers 101 (identified as crop line divider 101A and crop line divider 101B) which are arranged at the right end of the left chassis section 110 and the left end of the central chassis section 112, respectively.
    [0065] The 101A cultivation line divider is attached to the elongated tool bar 168 of the left chassis section 110. The line divider
    Petition 870190095117, of 09/23/2019, p. Cultivation 17/34 / 24 101B is attached to the elongated tool bar 168 of the central chassis section 112.
    [0066] As the left chassis section 110 and the central chassis section 112 pivot in relation to each other, the crop line divider 101A and the crop line divider 101B (which are arranged slightly above the elongated tool 168) will also move relative to each other. The upper rear parts of the crop line dividers 101A and 101B will come together as the left chassis section 110 pivots upwards relative to the center section and will move away as the left chassis section 110 pivots downwards relative to the section center frame 112. For this reason, point 106 and bonnet 108 that join the gap between the left frame section 110 and the central frame section 112 are spring mounted.
    [0067] In Figures 4A and 4B, a point 106 covers a gap between two adjacent crop line dividers 101A and 101B and therefore covers a gap between the left chassis section 110 and the central chassis section 112. A hood 108 (not shown in Figures 4A and 4B, but shown in Figures 1, 2, 3 and 7) also covers the gap between the two crop line dividers 101A and 101B and also covers a gap between the left chassis section 110 and the central chassis section 112.
    [0068] Hood 108 (shown in Figures 1, 2, 3 and 7), which would normally be located immediately behind point 106, was removed in Figures 4A and 4B for purposes of illustration, in order to show the structures to maintain the proper alignment of point 106 and hood 108 on the clearance between the two crop line dividers 101A and 101B. Point 106 is pivotally connected to hood 108 at two pivot points 190, 192 arranged on each side of point 106. This allows point 106 to pivot up and down relative to hood 108. Hood 108 is attached to the pivot pins 193, 194 which are arranged at the rear of the line dividers
    Petition 870190095117, of 09/23/2019, p. 18/34 / 24 cultivation 101A, 101B. The pivot pins 193, 194 are embedded in the plastic matrix of the hood 108 and are pivotally coupled to the hinge 196. The hinge 196 comprises a base element 198 that extends laterally between the two adjacent crop line dividers 101A and 101B. The vertical elements 200, 202 extend above this base element 198. The upper ends of the vertical elements 200, 202 are pivotally coupled together on the pivot pins 193, 194. This articulation arrangement forces the hood 108 to pivot in relation to the dividers cultivation line 101A, 101B around a laterally extending geometric axis 204 and, in general, parallel to the elongated tool bars 168 and the longitudinal extension of the corn collector 100.
    [0069] In order to allow cultivation line dividers 101A, 101B to move closer and further apart as the left chassis section 110 pivots up and down relative to the central chassis section 112, a left spring 206 and a right spring 208 are coupled on the left side and on the right side of the base element 198 of the hinge 196. The left spring 206 is also fixed on the right side of the crop line divider 101A. The right spring 208 is also attached to the left side of the 101B cultivation line divider. In this way, the articulation 196 is supported on both cultivation line dividers and extends through the gap between the left chassis section 110 and the central chassis section 112.
    [0070] Left spring 206 and right spring 208 are extension springs. They are made of a thin, flexible and flat plate that is formed in a serpentine, in such a way that the springs can be extended and retracted in a direction, in general, parallel to the longitudinal extension of the elongated tool bars 168. The left spring 206 and the right spring 208 are substantially the same and have the same elastic constant. Therefore, when the two adjacent crop line dividers 101A and 101B separate or come closer, the left spring 206 and the right spring 208
    Petition 870190095117, of 09/23/2019, p. 19/34 / 24 cause the joint to self-center between the two adjacent crop line dividers 101A, 101B. The left spring 206 and the right spring 208 can be compression springs or extension springs.
    [0071] The hood 108 is self-centering due to the force that the springs apply on the adjacent crop line dividers 101A, 101B and on the hood 108 causing joint 106 to move to a position between the two crop line dividers 101A, 101B in which the tension in each spring is equal to 9, that is, there is no net force pulling the joint 196 to one side or the other. Since the elastic constants of each spring are the same, they automatically move joint 196 to a position exactly in the center of the two crop line dividers, regardless of their relative spacing.
    [0072] The serpentine shape of the left spring 206 and the right spring 208 provides additional benefits. They substantially eliminate any movement from front to back of point 106 and hood 108. Furthermore, they substantially eliminate the rotation of point 106 and the hood around a vertical geometric axis. This helps to prevent point 106 from deflecting side by side.
    [0073] However, by themselves, the left spring 206 and the right spring 208 do not substantially prevent movement of the articulation 196 up and down in relation to the two cultivation line dividers. For this reason, parts of the base element 198 of the hinge 196 extend on top of the adjacent crop line dividers 101A, 101B. These parts of the base element 198 are shown here as the left flap 210 and the right flap 212. These two flaps are arranged above the structural elements of the two cultivation line dividers. They are positioned so that the weight of the hinge 196 and therefore at least part of the weight of the hood 108 rests on the adjacent crop line dividers. This way, the joints are not under constant tension due to
    Petition 870190095117, of 09/23/2019, p. 20/34 / 24 support the entire weight of the articulation 196 and the hood 108.
    [0074] Left flap 210 and right flap 212 are not rigidly attached to the crop line dividers. Instead, the left flap 210 and the right flap 212 extend laterally away from the opposite sides of the base element 198 and extend over the top of the surface of the adjacent crop line dividers to rest there.
    [0075] Left flap 210 and right flap 212 are forced to assist in preventing point 106 from deflecting side by side as it engages the corn. Left flap 210 and right flap 212 function as guide elements that slide laterally in relation to the two adjacent crop line dividers between the surfaces on each side of the cultivation line divider that forces the flaps to move from front to back in relation to the crop line dividers. The left flap 210 has a forward facing surface 214 that is immediately adjacent to a rear facing surface 216 of the crop line divider 101A. Left flap 210 has a rear facing surface 218 that is immediately adjacent to a forward facing surface 220 of the crop line divider 101A. The right flap 212 has a forward facing surface 222 that is immediately adjacent to a rear facing surface 224 of the crop line divider 101B. The right flap 212 has a rear facing surface 226 that is immediately adjacent to the forward facing surface 228 of the crop line divider 101B. These surfaces force the base element 198 to move side by side (that is, sideways), and prevent it from rotating around a geometric, generally vertical, axis at least as long as the flaps are resting on the surface of the dividers. adjacent crop lines and are therefore arranged between the front and back facing surfaces of the crop line dividers.
    [0076] When point 106 is deflected side by side, the left spring 206 and the right spring 208 will resist this deflection. Adjacent surfaces
    Petition 870190095117, of 09/23/2019, p. 21/34 / 24 above described in the cultivation line dividers 101A, 101B and in the left flap 210 and in the right flap 212 also resist or prevent this lateral movement by fitting the ends of each other whenever the deflection force tries to twist the point 106 to one side or the other.
    [0077] Figures 5 and 6 illustrate the rear part of the cultivation line dividers 101A and 101B that are supported in the left chassis section 110 and in the central chassis section 112, respectively. The crop line divider 101A is driven by a drive shaft 211 which is shown in Figure 6 extending slightly out of the gearbox of the crop line divider 178 of the crop line divider 101A. The drive shaft 211 has a longitudinally extending rotary axis 213. The crop line divider 101B is driven by the drive shaft 215, which is shown slightly extending out of the gearbox of the crop line divider 178 of the crop line divider 101B. The drive shaft 215 has a longitudinally extending rotary axis 217.
    [0078] All cultivation line dividers 101 in the left chassis section 110 are driven by drive shaft 211, which extends in a straight line through each of the cultivation line dividers. All cultivation line dividers 101 in the central chassis section 110 are driven by drive shaft 215, which extends in a straight line through each of the cultivation line dividers. Both drive axes have a regular non-circular polygonal outer surface, preferably a regular hexagon or octagon in cross section.
    [0079] The two drive axes 211, 215, if extended along their respective rotating geometry axes 213, 217, will intersect with each other in the space between the cultivation line dividers 101A and 101B in all possible pivot positions reachable by the left chassis section 110 in relation to the central chassis section 112.
    Petition 870190095117, of 09/23/2019, p. 22/34 / 24 [0080] Furthermore, both drive axes will intersect with the pivot geometric axis 116. In a preferred embodiment, both the rotary geometric axis 213 and the rotary geometric axis 217 intersect with the pivot geometric axis 116. This has the advantage of allowing both drive shafts to be coupled together with a universal joint 300 (Figure 19). In Figure 19, this relationship is illustrated in an alternative modality that shows a universal joint 219 that couples the drive axes 211 and 215. In Figure 19, both the rotating geometry axis 213 and the rotating geometry axis 217 intersect with the geometric axis. pivot 116. In addition, the projected envelope 211X of the drive shaft 211 intersects with the projected envelope 215X of the drive shaft 215. The envelopes of the drive axes are projected parallel to the rotary axis 213 and the rotary axis 217.
    [0081] When the left chassis section 110 pivots upwards in relation to the central chassis section 112, the drive shaft 211 assumes position 211B. When the left chassis section 110 pivots downwards relative to the central chassis section 112, the drive shaft 211 assumes position 211A. In each of these alternate positions of the drive shaft 211, and in all of the intermediate positions to pivot except the drive shaft 211, the rotary geometry axis 213 will intersect with the rotary geometry axis 217 on the pivot geometry axis 116. Furthermore, the projected envelopes 215X of the drive shaft 215 and the projected envelope 211BX of the drive shaft 211 in position 211B and the projected envelope 211AX of the drive shaft 211 in position 211A will intersect with each other and intersect with the pivot geometric axis 116 .
    [0082] With the drive shafts 211, 215 so arranged to intersect with the pivot geometric axis 116, the axial loads on the joint
    Petition 870190095117, of 09/23/2019, p. 23/34 / 24 universal 219 will be minimized over the entire pivot movement range of the left chassis section 110 relative to the central chassis section 112.
    [0083] Figures 8 - 12 illustrate an arrangement for coupling the left and center conveyor sections. Figure 8 shows the complete set of the left conveyor section 120 and the central conveyor section 122. In Figure 9, the elongated tube 158 for the left conveyor section 120 has been removed, exposing a first fork 240 of the universal joint 130. A the first fork 240 is supported on an axis 242 which, in turn, is fixed on a plurality of spaced circular discs 244. Circular discs 244 are welded on the inner surface of the elongated tube 158. In this way, the first fork 240 is fixed on the tube elongated 158 and is substantially integrally disposed within the end of the elongated tube 158. The free (right) end of the elongated tube 158 is disposed immediately adjacent to a seal 246.
    [0084] The seal 246 has an outside diameter that is substantially the same size as the outside diameter of the elongated tube 158. It is slightly smaller than the elongated tube 158 and therefore the elongated tube 158 can extend in close proximity around the seal 246, as shown in Figure 8. The seal 246 is generally disc-shaped and extends into its outer edge to an inner periphery that is arranged very close to the contours of the first fork 240 and the second fork 250. The first fork 240 is coupled to a cross-shaped connecting element 248 that forms a part of the universal joint 130, which in turn is coupled to the second fork 250 that forms the final part of the universal joint 130 The inner periphery of seal 246 is spaced a short distance from the first fork 240 and the second fork 250 and the cross-shaped connecting element 248. The function of the seal 246 is to prevent the mat Ria plant that is transported by the conveyor 104 is gripped within the universal joint 130, damaging the
    Petition 870190095117, of 09/23/2019, p. 24/34 / 24 bearing 136 and wrapping around the elongated tubes that form part of the conveyor 104. When this occurs, a mass of plant material forms that effectively blocks the conveyor. The agricultural harvester must be stopped, the conveyor must be stopped, the operator must leave the cabin, descend and clean the plant material wrapped around the conveyor 104. This can significantly delay the harvest.
    [0085] The seal 246 is fixed to a stub of the tube 252 that surrounds the second fork 250. The second fork 250, in turn, is fixed at the left end of the section of the central conveyor 122, and rotates with it. The second fork 250 is arranged on the left side of the bearing 136. It is spaced to the left (outer) side of the bearing 136 at a distance roughly equal to the diameter of the elongated tube 158 and the elongated tube 166. This spacing provides a separation zone between the bearing 136 and the seal 246. The stub of the tube 252 has an outside diameter that is substantially equal to the outside diameter of the elongated tube 158.
    [0086] This similarity in diameter allows the plant material to slide evenly from the elongated tube 158 to the stub of tube 252, and therefore, beyond the bearing 136, to the elongated tube 166 of the central conveyor section 122, which also has an outside diameter that is substantially equal to the outside diameter of the elongated tube 158.
    [0087] In Figure 8, the reed bit 156 of the left conveyor section 120 is shown extending axially inward, beyond the end of the elongated tube 158 and over the top of the tube stub 252. In an alternative and preferred embodiment, the drill bit 156 can be terminated at the end of the elongated tube 158. This shortened length of the drill bit 156 is shown as a dashed line in Figure 8.
    [0088] The stub of tube 252 has its own bit for drill 254. The bit for drill 254 is angled between 5 and 30 degrees behind the bit for drill 156 in the left conveyor section 120 as the
    Petition 870190095117, of 09/23/2019, p. 25/34 / 24 tubes rotate. This reduces the possibility that material will become trapped between the two vanes and wrap around elongated tube 158 and elongated tube 166. The stub of tube 252 ends at clamp 138.
    [0089] Since the bearing 136 is spaced from the second fork 250 of the universal joint 130, the drill bit 254 at the end of the central conveyor section 122 can be arranged immediately adjacent to the drill bit 156 at the end of the left conveyor section 120 The bit of the drill bit 254 and the bit of drill bit 156 can be very close together, so that they overlap each other when the left chassis section 110 is pivoted up and down in relation to the central chassis section 112. By provision from a bit of the drill bit 254 to a part of the stump of the central conveyor section 122, the universal joint 130 can move in cantilever away from the clamp 138 and the vane spacing of the two sections of the conveyor becomes smaller. This is enhanced by the location of the reed tip of drill 254 angled away from the adjacent end of drill reed 156, which prevents the reeds from physically interfering with each other even when they overlap during moments of extreme pivoting of a chassis relative to to the other.
    [0090] Figures 12 - 15 illustrate two additional features of the corn collector 100. Each section of the drill rotates above a channel formed by a long concave sheet metal shape. The drill channels are supported on the chassis of each chassis section. Just as the bit has joints that allow the bit to pivot when the chassis elements are pivoted in relation to each other, the channel also has a pivot joint 260. The pivot joint 260, as best shown in Figure 12, is arranged immediately below universal joint 130. Pivot joint 260 is arranged between universal joint 130 and pivot geometry axis 116.
    [0091] As shown in Figure 13, the pivot joint 260
    Petition 870190095117, of 09/23/2019, p. 26/34 / 24 is also located immediately above the pivot geometry axis 116 and is in the same vertical plane as the pivot geometry axis 116. The pivot joint 260 forms a junction between a channel of the left drill 262 underlying the left conveyor section 120, and a central drill channel 264 disposed underlying the central conveyor section 122.
    [0092] The left drill channel 262 extends substantially the entire length of the left chassis section 110 underlying the left carrier section 120. The center drill channel 264 extends substantially the entire length of the underlying central chassis section 112 to the central conveyor section 122.
    [0093] The left end of the central drill channel 264 is arranged in such a way that it extends under the right end of the left drill channel 262. In the arrangement shown here, an extension of the drill channel 266 is removably attached to the left end part of the central drill channel 264 and extends further to the left and underlying the left drill channel 262. The extension of the drill channel 266 is preferably made of a flexible, wear-resistant material. Its small length makes it easier to remove in the event of wear. The overlapping of the left drill channel 262 at the top of the central drill channel 264 (including at the top of the extension of the drill channel 266 of the central drill channel 264) ensures that the crop pulled to the left towards the center of the corn collector 100 easily slide over these roughened drill bit channels. In the preferred arrangement, the left drill channel 262 and the central drill channel 264 (including the drill channel extension 266) preferably are in sliding contact with each other or, if not in sliding contact, are spaced apart distance of no more than about 5 mm over the width of the channels.
    [0094] Figures 14 and 15 illustrate a similar overlapping arrangement that associates the rear wall of the left chassis section 270 with the
    Petition 870190095117, of 09/23/2019, p. 27/34 / 24 rear wall of the central chassis section 272. The rear walls 270, 272 are, in general, vertical metal sheets fixed on the chassis 102. The rear walls form a barrier to prevent the cultivation from being driven through the rear of the corn collector 100 when the conveyor 104 rotates.
    [0095] In the illustrated arrangement, the rear wall of the left chassis section 270 is at the top (in front) of the rear wall of the central chassis section 272 when the two overlap.
    [0096] When a hydraulic circuit 274 extends and retracts, it causes the elongated upper chassis element 182 of the left chassis section 110 and the elongated upper chassis element 182 of the central chassis section 112 to be dragged one towards the another or pulled away from each other. This causes the left chassis section 110 to pivot up and down in relation to the right chassis section 112. This also causes the rear wall of the central chassis section 272 to slide in relation to the rear wall of the left chassis section 270. As with the drill channel arrangement, this overlap of the left rear wall in relation to the central rear wall ensures that the crop flow transitions evenly from the left chassis section 110 to the central chassis section 112 without getting stuck.
    [0097] In a preferred arrangement, the rear wall of the left chassis section and the rear wall of the central chassis section are in sliding contact with each other or, if not in sliding contact, are spaced at a distance of no more than about 5 mm over the height of the back wall.
    [0098] Figures 16, 17 and 18 particularly illustrate the orientation and location of the front joint 186 and the rear joint 188. These Figures are cross-sectional views taken from a cutting plane that extends both vertically and from front to back. This cutting plane
    Petition 870190095117, of 09/23/2019, p. 28/34 / 24 passes through universal joint 130 and front joint 186 and rear joint 188. The joints define the pivot geometric axis 116 around which the left chassis section 110 pivots in relation to the central chassis section 112.
    [0099] The pivot geometric axis 116 extends through pivot pins of the front joint 186 and the rear joint 188, forwards and downwards. In the side view of Figures 16 - 18, the pivot geometry axis 116 passes through a sliding shoe 276 arranged at a front end of the arm 170. In the side view of Figures 16 - 18, the pivot geometry axis 116 also passes through the rollers stalk 176.
    [00100] What this location of the pivot geometric axis 116 means from a kinematic perspective is that, as the left chassis section 110 pivots up and down in relation to the central chassis section 112, the spacing between dividers of adjacent cultivation lines in the left chassis section 110 and in the central chassis section 112 changes as little as possible for each pivot.
    [00101] If the left chassis section 110 was positioned in Figures 16 - 17 with a zero degree pivot angle in relation to the central chassis section 112 (that is, when the corn collector 100 rests on the flat ground), the pivot geometry axis 116 will be located directly between the adjacent crop line dividers 101: between arms 170 of the adjacent crop line dividers 101A, 101B, between the stem rolls 176 of the adjacent crop line dividers 101A, 101B, and between sliding shoes of the adjacent crop line dividers 101A, 101B.
    [00102] Due to this spatial relationship, as the corn collector 100 moves across the field, with the left chassis section 110 pivoting up and down in relation to the right chassis section 112, this pivot does not change substantially the lateral spacing between the adjacent crop line dividers on the sliding shoes and
    Petition 870190095117, of 09/23/2019, p. 29/34 / 24 stalk rolls from these adjacent crop line dividers. Thus, as the left chassis section 110 and the right chassis section 114 pivot up and down, the relative spacing between adjacent crop line dividers does not change, but remains constant. This is important, as adjacent rows of crops are planted with relatively constant spacing, whether the terrain is undulating or flat. If (in an extreme example) the pivot geometric axis 116 extends from front to back, but is 1.8 meters (6 feet) above the crop line dividers, the spacing between adjacent crop line dividers can change as much as 20 - 40 centimeters each time the left chassis section 110 pivots 10 degrees from the central chassis section 112. This sudden additional spacing between adjacent crop line dividers will cause a significant part of the crop to be shredded rather than harvested since the points run over the cultivation rows instead of feeding them between the stalk rolls.
    [00103] Universal joint 130 also rests on the same plane that extends vertically and from front to back as pivot geometric axis 116. Therefore, universal joint 130 is directly above pivot geometric axis 116.
    [00104] The joint 160 defined between the left drill channel 262 and the central drill channel 264 intersects on the same plane as the universal joint 130 and the pivot geometric axis 116. Thus, parts of the left drill channel 262 and the central drill 264 passes through the plane that extends vertically and from front to back. The pivot geometry axis 116 is directly below the joint 160. The immediate spacing of the drill channels to the pivot geometry axis 116 allows the pivot joint 260 to be made very narrow and seal well.
    权利要求:
    Claims (13)
    [1]
    1. Self-centering hood set for crop line dividers (101) of an articulated row cutting platform (100), the articulated row cutting platform (100) with a first chassis section (110, 114) and a second chassis section (112) pivotally coupled together, characterized by the fact that the self-centering hood assembly comprises:
    a base element (198);
    a hood (108) coupled to the base element (198);
    a first spring (206, 208) coupled between the first chassis section (110, 114) and the base element (198); and a second spring (206, 208) coupled between the second chassis section (112) and the base element (198);
    where the first spring (206, 208) and the second spring (206, 208) are arranged to reposition the hood (108) in relation to both the first chassis section (110, 114) and the second chassis section (112) when the first chassis section (110, 114) and the second chassis section (112) pivot from each other.
    [2]
    2. Self-centering hood assembly according to claim 1, characterized by the fact that the first spring (206, 208) is coupled to a first cultivation line divider (101) in the first chassis section (110, 114), and where the second spring (206, 208) is coupled to a second cultivation line divider (101) immediately adjacent to the first cultivation line divider (101), and where the second cultivation line divider (101) it is mounted on the second chassis section (112).
    [3]
    3. Self-centering hood assembly according to claim 1, characterized in that the base element (198) additionally comprises guide elements (210, 212) that force the base element (198) to slide laterally in relation to the first section of
    Petition 870190095117, of 09/23/2019, p. 31/34
    2/3 chassis (110, 114) and the second chassis section (112) when the first chassis section (110, 114) and the second chassis section (112) pivot in relation to each other.
    [4]
    4. Self-centering hood assembly according to claim 3, characterized in that the guide elements (210, 212) are arranged on opposite sides of the base element (198).
    [5]
    5. Self-centering hood assembly according to claim 1, characterized by the fact that the first spring (206, 208) and the second spring (206, 208) are coils.
    [6]
    6. Self-centering hood assembly according to claim 1, characterized in that the first spring (206, 208) and the second spring (206, 208) are arranged to extend and retract in a direction parallel to an extension longitudinal of the articulated row cutting platform (100).
    [7]
    7. Self-centering hood assembly according to claim 1, characterized in that the first spring (206, 208) and the second spring (206, 208) are fixed on the opposite side sides of the base element (198).
    [8]
    8. Self-centering hood assembly according to claim 1, characterized by the fact that the base element (198) is coupled to the hood (108) by a joint (196), in which the joint (196) forces the hood ( 108) to pivot in relation to the base element (196) around a laterally extending geometric axis (204).
    [9]
    9. Self-centering hood assembly according to claim 8, characterized in that the articulation (196) is arranged above the first spring (206, 208) and the second spring (206, 208).
    [10]
    10. Self-centering hood assembly according to claim 9, characterized in that the joint (196) is arranged behind the first spring (206, 208) and the second spring (206, 208).
    Petition 870190095117, of 09/23/2019, p. 32/34
    3/3
    [11]
    11. Self-centering hood assembly according to claim 1, characterized in that the base element (198) is disposed immediately above a pivot geometric axis (116, 118), whose pivot geometric axis around which the first chassis section (110, 114) is forced to pivot in relation to the second chassis section (112).
    [12]
    12. Self-centering hood assembly according to claim 11, characterized in that the first spring (206, 208) is arranged on one side of the geometry axis (116, 118), and the second spring (206, 208) ) is arranged on the other side of the pivot geometric axis (116, 118).
    [13]
    13. Self-centering hood assembly according to claim 12, characterized in that the first spring (206, 208) and the second spring (206, 208) are arranged above the pivot geometric axis (116, 118).
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    同族专利:
    公开号 | 公开日
    EA026283B1|2017-03-31|
    BR102013024085A2|2015-08-18|
    CA2827681C|2020-01-21|
    US9072222B2|2015-07-07|
    AU2013231085B2|2017-06-08|
    CA2827681A1|2014-03-20|
    EA201300936A1|2014-04-30|
    AU2013231085A1|2014-04-03|
    US20140075909A1|2014-03-20|
    EP2710880A2|2014-03-26|
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    法律状态:
    2015-08-18| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2018-03-06| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2018-03-13| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2018-03-20| B06I| Technical and formal requirements: publication cancelled|Free format text: ANULADA A PUBLICACAO CODIGO 6.6.1 NA RPI NO 2462 DE 13/03/2018 POR TER SIDO INDEVIDA. |
    2019-07-09| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2019-11-26| B09A| Decision: intention to grant|
    2020-02-04| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/09/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201261703745P| true| 2012-09-20|2012-09-20|
    US14/025,278|US9072222B2|2012-09-20|2013-09-12|Self-centering cover for hinged row crop harvesting head|
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