• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An articulated, four-wheel drive tree harvesting machine includes a front frame section upon which a felling boom assembly, a delimbing assembly and a feed assembly are mounted. The felling boom assembly is operable for severing a tree and lowering the same into a generally horizontal disposition from where the trunk of the tree may be released for engagement by feed rolls of the feed assembly and for encirclement by blades of the delimbing assembly. The felling boom assembly includes a felling head structure which is pivotally mounted at the end of a boom section for movement about a horizontal axis and which includes a pair of cylindrically curved blades mounted for vertical swinging movement about an axis arranged to extend crosswise to the longitudinal axis of a tree being sheared. A pair of double-acting pistons are mounted within a common cylinder and are respectively linked to the pair of blades for selectively moving the latter towards and away from each other. The felling head structure also includes a pair of grapple tongs located above the pair of blades and a double-acting cylinder is connected to each of the pair of grapple tongs and are operable independently of the blade-operating pistons. The pivotal connection between the felling head structure and the boom of the felling boom assembly forms a fluid manifold for conveying pressure and exhaust fluid to and from the hydraulic actuators for the blades and the grapple tongs.
    公开号:SU1218915A3
    申请号:SU742019073
    申请日:1974-04-25
    公开日:1986-03-15
    发明作者:Клинтон Джонсон Эрл；Роберт Хайселер Стэнли
    申请人:Дир Энд Компани (Фирма)；
    IPC主号:
    专利说明:

    2.Me Sanis pop, 1, o. This means that the casing is provided with horizontally positioned w-supports for double-arm levers, and the axis of rotation of the cutting heads is located below the straight line connecting these supports.
    3. The mechanism according to claim 1, characterized in that each cutting head has a sleeve, and each of the levers is made of two plates arranged parallel to each other and passing through the sleeve, the ends of which protrude from the sleeve and are interconnected by the connecting element mating with the sleeve, and on the other side of the sleeve of the plate are connected in a single direction. means of another connecting, also mating with the sleeve.
    4. Mechanism according to claim, 3, so that the sleeves are closed on one side and have on their internal opposite sides 1x two elements for gripping the wood komles located above the blade knives.
    5. The mechanism according to p.
    about t and
    Since the sling has two supporting corner brackets5, one face of each of which is located on the cutting edges of the knives, and the other is perpendicular, with the first edges
    one
    The invention relates to the forest industry and can be used in mobile logging and forest processing machines.
    The purpose of the invention is to reduce the level of the cutting surface of trees.
    . FIG. 1 shows a machine for mechanization of forest operations, containing a mechanism for cutting trees, a general view; in fig. 2 - furs
    Nism, rear view; in fig. 3 - the same, top view; Fig, 4 - the same, left view; in fig. 5 - swivel mechanism with the end of the section
    nor are they arranged with a gap to form a hole for the passage of soil
    6. The mechanism according to claim 1, of tl and h and 10 u and the fact that each blade knife has two pairs of support racks, one of the racks of each pair are located in a direction parallel to the cutting edges of the blades,
    and others perpendicular.
    7. The mechanism according to claim 6, characterized in that the supporting corner brackets and the supporting posts are interconnected by detachable fastening elements, and between them are spacers for adjusting the displacement of the blades in the direction along the edges and the size of their overlap.
    8.Mechanism according to claim 1, 1 and 2, which is due to the fact that the casing is provided with limit members interacting with the ends of the ram to prevent its longitudinal movement.
    9. The mechanism according to claim 1, characterized in that it is mounted on the boom arm by means of a hydraulic tubular distributor and a hinge device.
    10. The mechanism according to claim 9, characterized in that the tubular distributor is connected by means of pipelines with the power cylinder to rotate the cutting heads and the hydraulic cylinders to rotate the grips.
    boom machine, cut; Fig. 6 shows an engine (hydraulic cylinder) driving knives (to simplify the drawing, the working openings of the engine
    shown biased relative to their actual position), longitudinal section.
    FIG. 1 depicts a forest machine 1 comprising
    the middle section 2 of the frame supported on a pair of front driving wheels 3, and the rear section 4 of the frame supported on a pair of rear driving wheels 5 of the front and rear sections of the frame 31
    the tailor means are interconnected by means of an articulated joint 6, partly shown in the drawing. At the front end of section 2 of the frame there is mounted a knife delimbing mechanism 7 containing a pair of curvilinear blades 8 and 9 opposing one another, pivotally mounted with the possibility of sliding and sliding, and a fixed V-shaped knife 10; The design and location of these knives are such that when the knives 8 and 9 are placed in the extended position, the tree can be laid on the V-shaped knife 10 and partially supported by it, and when the knives 8 and 9 are moving, the trunk supported by the above-mentioned tree is covered with knives. Directly behind the delimbing mechanism 7 is mounted a feed mechanism 11 comprising a pair of feed rollers 12 and 13 installed with the possibility of supplying them to a tree trunk located between them and withdrawing them from this trunk; these rollers interact with the tree trunk and move it through the knives of the delimbing mechanism. To cut the tree standing on the root and direct it to the delimbing mechanism 7 and the feeding mechanism 11, the maschine 1 is equipped / with a manipulator 14, mounted 1st on the front frame section of the vehicle, in the middle between the sides of the said frame section, just before the articulation 6 The manipulator 14 comprises a vertical support column 15 mounted in the front section 2 of the frame sariirno, with the possibility of rotation around a vertical axis, and receiving movement from a hydromechanical drive (not shown). The opposite ends of the first boom section 16 are pivotally connected respectively to the upper end of the vertical support column 15 and to one end of the second boom section 17; These joints are made using hinged elements with horizontal axes. With its second end, the second boom section 17 is hingedly connected to a tree cutting mechanism 18 (felling head); This connection is made using the means described below and also having a horizontal axis. Between carrier post 15 and first section 16
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    arrows, between the first 16 and second 17
    The boom sections and between the second boom section and the mechanism 18 (the felling head) are connected to them hydraulic motors (hydraulic cylinders), 19, 20 and 21, respectively. During the alternate actuation of these hydrocylinders, the felling head 18 is placed in the cutting position of the standing tree and the cut tree is moved to a practically horizontal position for subsequent insertion into the delimbing mechanism 7 and the feeding mechanism 11. A cab 22 is located in the middle between the opposite sides of the machine, in the front part of the rear section 4 of its frame, directly behind the hinge joint 6. The cab 22 is provided with windows 23 through which the coin operator can observe the operation of the mechanisms mounted on the front frame section. Directly behind the cab 22 is the engine compartment 24 in which the engine is installed (not shown).
    As can be seen from FIG. 2 through 4, the felling head 18 comprises a frame 25 including a transversely disposed and inverted V-shaped part forming the jacket 26 of the hydraulic cylinder. The housing 26 is covered by mutually parallel right 27 and left 28 edges connected to it and displaced inwardly relative to its ends. The ribs 27 and 28 have the front parts, respectively, 29 and 30, between which is located the element 31 rigidity; this element is permanently connected to the front side of the casing 26 and to the ribs 27 and 28 and contains the forward-facing vertical part 32, from which the right 33 and left 34 diverge forward, extending forward, respectively to the ribs 27 and 28. Ta- The CMM thus, the ribs 27 and 28 and the stiffening element 31 form an open front zone, which includes a standing tree on the root, which is subject to a swath. On the right and left surfaces of the ribs 27 and 28, respectively, and on the casing 26 are connected the right 35 and left 36 front; rigid elements - 5, located practically in the same transverse plane with the element 31 of rigidity and protruding 1e outward relative to the opposite tori
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    The housings of the casing 26, On the back side of the casing 26, are the right 37 and left 38 hardening elements, similarly connected to the ribs 27 and 28 n with the casing. At the front ends of the front 35 and rear 37 right stiffeners, the crankshaft 39 is rotatably mounted and located between these ends; The left crankshaft 40 is installed in a similar way at the protruding ends of the front 36 and rear 38 left stiffeners. Thus, the axes of rotation of the crankshafts 39 and 40 are mutually parallel and when installing the felling head in the vertical or straight position shown in the drawings, they are horizontal. On the right 39 and left 40 crankshafts, the crankshafts located centrally relative to the opposite ends of the casing 26 and protruding upward, 41 and 42 respectively, are located on the front ends of the right 39 and left 40 crankshafts protruding downward cranks 43 and 44 respectively. Krivopshpa 41 and 43 on the right and 42 and 44 on the left form the right and left two shoulders. The frame 25 comprises a middle, lower part 45, in which a pivot pin 46 is located at equal distances from the crankshafts 39 and 40, parallel to these shafts and intended for the hinge attachment of the right 47 and 48 levers 48 arms, respectively, knife-1. The levers 47 and 48 carrying the yoke contain sleeves 49 and 50, respectively, with closed ends, located below frame 25 in front of it and parallel to the hinge pin 46. Diametrically relative to sleeve 49, in places located one distance from the other along the axis of the sleeve A pair of right, mutually parallel, plates underneath the frame 25 passes through the latter, 5, the upper ends of which are connected to the hinge pin 46; between the free lower ends of the 32 plates is a connecting element (beam) 53, connected with. these plates and with the sleeve 49 welding. A similar element (timber) 54 is welded to the plate g
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    Tina 51 in a place diametrically opposite to the bar 53. Similarly, a pair of left plates 55, located under the frame 25 and the upper ends associated with the hinge pin 46, diametrically passes through the sleeve 50; between the free lower ends 56 of these plates is a connecting element (beam) 57, which is connected with the plates and with the sleeve 50 by welding. A similar beam 58 is located between the plates 55 in a place diametrically opposite to the beam 57, and is connected to these plates by a sleeve 50 by welding. Eyes 49 and 60, respectively, are connected to bushings 49 and 50 in the places located directly below the curved shafts 43 and 44 protruding. A right-handed intermediate link 61 pivotally connected to them is located between the crankshaft 43 and the eyelet 59; between the crank 44 and the lug 60, a left-side intermediate link 62 is pivotally connected to them. The sleeves 49 and 50 have mutually opposite internal parts located near the front ends of these parts 5, respectively, the brackets 63 and 64 of the rectangular shape , containing, respectively, the front walls 65 and 66 and the outer walls 67 and 68, which are arranged so that they form mutually opposing, shaped like squares of a rack. Similarly on sleeves 49 and 50. rear brackets 69 and 70, respectively, are rectangular in shape, located behind brackets 63 and 64. Brackets 69 and include rear walls 71 and 72 and outer walls 73 and 74; the rear and outer walls together form the corresponding mutually opposite, having the form of squares of the rack.
    On the front and rear right rectangular brackets 63 and 69, the right rotatable cutting head 75 is fastened; on the front and rear left rectangular brackets 64 and 70, the left rotatable cutting head 76 is fixed; The heads 75 and 76 each comprise a curved shape of the curved blades 77 and 78, as part of a cylindrical surface.
    /
    moreover, the center of the circle along which they are located lies on the axis of the hinge pin 46. Knives 77 to 78 contain mutually opposite leading cutting edges 79 and 80, respectively, parallel to the axis of the hinge pin 46. Perpendicular to the cutting edge 79, as well as the tail edge 81 front 8 and rear 83 edges respectively perpendicular to the cutting edge 80 and tail edge 84 are located front 85 and rear 86 edges respectively. On the upper concave surface of the right knife 77, in the respective angles formed by the intersection of the tail edge 81 with the front 82 and the rear 83 edges, the front 87 and rear 88 right brackets, which are included in the corner arms, are integral with this knife. front 63 and rear 69 right brackets, respectively, rectangular in shape and connected to them by groups of bolts 89 and 90, between the outer side surfaces of the front 63 and rear 69 right brackets and the corresponding front surfaces 87 and The 88 right-hand corners of the angular form of the brackets are installed in sets of gaskets 91. Between the front surface of the bracket 63 and cociT-
    The mounting surface of the bracket 87 and between the back surface of the bracket 69 and the corresponding surface of the bracket 88 are installed sets of gaskets 92. Similarly, on the concave upper surface of the knife 78, the corners formed by the intersection of the tail edge 84 of the knife with the front and the rear edges 85 and 86, the left front brackets 93 and the rear 94, made in the form of angular posts, are installed; the left brackets are connected to them with groups of bolts 95 and the corresponding brackets 64 and 70 are connected between the adjacent side surfaces a set of shims 96 are installed at the ends of the connected brackets; gasket sets 97 are installed between the respective adjacent front and rear surfaces of these connected brackets.
    As can be seen from FIG. 4, the lower side of the sleeve 50, the tail edge 84
    15

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    the knife 78 and mutually opposite edges of the front 64 and rear 70 left downward-facing brackets jointly limit window 98. Window 98, as well as a window (not shown), likewise limited jointly by sleeve 49, knife 77 and brackets 63 and 69 and located on the opposite side head, serve as exits through which when moving the knives 77 and 78 in the process of cutting a tree trunk can be removed foreign material, such as branches, mud, snow, etc.
    As can be seen from FIG. 2, the cutting edges 79 and 80 of the knives, when inserted into the mutual contact, mutually overlap. The magnitude of this overlap can be adjusted by removing or adding one or more of the gaskets 91 and 96 into the respective kits. In addition, the front 87 and rear 88 right brackets and the front 93 and rear 94 left brackets are positioned so that the corresponding front and rear surfaces in front of the bolts 90 and 95 are at a predetermined distance from the respective front and rear surfaces. front 63 and rear 69 right brackets and front 64 and rear 70 left brackets. When bolts 90 and 95 are tightened, preloading knives 77 and 78 in a direction parallel to their cutting edges 79 and 80 occurs. The preload can be adjusted by removing or adding one or more shims 92 and 97 to the corresponding kits.
    To hold the tree trunk after the knives are moved, mutually opposite right oriented 99 and left 100 trihedral clamping plates are respectively fixed on opposite inner surfaces of the sleeves 49 and 50 and making up the latter with one piece. As can be seen from FIG. 3, the plates 99 and 100 comprise rear faces 101 and 102, respectively, lying in common vertical planes with the right 33 and left 34 portions of the stiffening element 31.
    In the housing 26 there is a hydraulic motor hydraulic cylinder 103 with reciprocating moving working elements, comprising a right 104 and left 105 rods; the free ends of the rods are pivotally connected to the upward protruding cranks 41 and 42, respectively, of the crankshafts of the supports 39 and 40. At the inner ends of the rods 104 and 105, the right 106 and left 107 pistons are installed, respectively, located in the cylinder 108 with the possibility of -accessible movement. Cylinder 0 contains right 109 and left 110 parts, mutually adjacent, the open ends of which are separated by a gap 111. At a corresponding distance from the inner ends of parts 109 and software of the cylinder there are annular flanges 112 and 113 with opposite, perpendicular axes cylinder surfaces 114 and 115, respectively. From the flanges 112 and 113 to the inner ends of the cylinder parts 109 and 110, axially oriented first outer annular centering surfaces P 6 and 117, bordering the axially inner side, respectively, with mutually opposed annular perpendicular to the axis of the cylinder by the surfaces 118 and 119; radially inwardly, the boundary of the latter is formed by the second outer annular surfaces 120 and i 2 i, respectively. Between the flanges 112 and 113 of the parts 109 and the cylinder, there is a sleeve-shaped middle part -122 of the cylinder, containing the inner surface 123, which is mated with the centering surfaces 20 and 121, as well as the right flange 124 and left 125, respectively. Adjusted for a certain fit with tse.nrnru-yukimi surfaces 116 and 117 and butt-connected with tongs 112 and 113 groups of screws 126.
    The return stroke of the pistons 106 and 107 is selected so that it ends when the pistons reach the inner ends of the cylinder parts 109 and 110,. whereby the piston is always axially apart from one another. In the wall of the middle part 122 of the cylinder made the first working hole 127, together


    A cavity between the pistons 106 and 107. The second working bore 128, made in the middle part of the cylinder I22, communicates with the axial channel 129, consisting of the corresponding sections located in the walls of the three parts 109, IIO and 122 cylinders. The opposite ends of the channel 129 goes to the right 130 and left 131 annular chambers, respectively, filled in the right 132 and left 133 closed ends of the parts 109 and PO of the cylinder. Thus, the rods 104 and 105 have a double effect, since when the working openings I27 and 128 are connected to the source of working fluid, these currents can be alternately introduced into the cylinder and move out of it. In line with this, the cutting heads 75 to 76, when the rods I04 and I05 are raised, can be rotated as shown in FIG. 2 to the closed position, when inserting the arms 104 and 105 into the cylinder, the cutting heads 73 and 76 can be rotated to the open position, in which the knives 77 and 78 are located one distance from one another. In order to prevent axial displacement of the cylinder 108, the right 134 and left 135 stops, which interact with the opposite ends of the I08 cylinder, are secured to the casing 26 when extending or inserting the rods 104 and 105.
    The structure carrying the grippers is integral with the frame 25 and contains located at a distance of vertical from the stiffening element 31, above this element, the horizontal element 136, the opposite ends of which are connected 1y with the rib-27 and 28, and the rear edge is with the upper part of the front surface of the casing 26. At the locations of the horizontal element 136 located in its inner part, at a distance from the right and left ends of it, right 137 and left 138 vertical plates are fixed on this element, on the upper h The second horizontal element 139 is fastened to the second X. Between the horizontal elements 136 and 139, the right 140 and the left 141 vertical pivot pins, which are rotatably mounted, pass through, respectively,
    The BOMs of which carry out the hinge installation of the right 142 and left 143 grippers, respectively. Between chassis 25 and grippers 142 and 143, articulated hydraulic motors (hydraulic cylinders) 1Л4 and 145 are connected to the frame and grippers.
    The ribs 27 and 28 of the frame protrude from the rear part of the frame 25 back and form lugs 146 and 147, into which the opposite ends of the horizontally hinged device (assembly) 148 integrated with junction boxes for transferring the working medium are rotatably inserted; node 148 serves to swivel the felling head 18 with the outer end of the second boom section 17. In the right and left ends of the node 148 are hollow fingers 149 and 150, respectively, in the outer ends of which are installed right 151 and left 152 fittings, respectively. With their internal ends, with their reduced diameter, these fingers are mounted in the right 153 and left 154 junction boxes, respectively, the finger channels are connected to the first chambers 155 and 156 junction boxes. Fittings 151 and 152 are protected by fences 157 and 158 cor responsibly. In the second boom section 17, two pipes or hoses, shown in FIG. 5 lines 159 and 160; at their ends, these pipelines are connected to the right 151 and left 152 choke pipes. A distributor 161 is connected to pipelines 159 and 160 and is also connected to a pump 162 and a hydraulic tank 163; it controls the movement of the working fluid through pipelines 15 and 160. The first chambers 155 and 156 of the right and left junction boxes are connected to a second pair of pipelines 164 and 165, respectively, also connected to the piston and rod cavities of the hydraulic cylinders 144 and 145, respectively. Between the junction boxes 153 and 154 there is a middle tubular part 166 fixed to the frame 25 of the felling head with the help of a shoulder 16 shown in FIG. 3. Detail 166 forms, together with junction boxes 153 and 154, a tubular
    ten
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    distributor. In the part 166, the right 168 and the left 169 fingers are rotatably mounted with their inner ends, the outer ends of which are included in the junction boxes 153 and 154; the cavities of these fingers communicate respectively with the second chambers 170 and 171. In the right 168 and left 169 fingers, right 172 and left 173 fittings are installed, respectively, communicating with corresponding radial channels, which, in turn, communicate with axial bores 174 and 175 opening into chambers 170 and 171. Two pipes 176 and 177, respectively, connected to fittings 172 and 173, are connected to distributor 178, which, in turn, are connected to pump 162 and hydraulic tank 163 by pipes 179 and 180, respectively. Second chambers 170 and 171 right and the left junction boxes, respectively, 153 and 154 are connected to the working openings, respectively, 127 and 128 of the hydraulic cylinder 103, pipelines 181 and 182. As can be seen from FIG. 4, the working openings of the hydraulic cylinder 103 are located approximately coaxially with the junction points of the pipelines 181 and 182 with the junction boxes 153 and 154, ahead of these places, thus ensuring a relatively short length of the pipelines 181 and 182.
    Felling head 18 operates as follows.
    Let the self-propelled machine 1 be in the place of a felling of a forest and it is necessary to make a felling of a tree located near it. The piston rods of the hydraulic cylinder 103 of the knives performing the cutting of the tree are installed in an inserted position in which the knives 77 and 78 are open and spaced apart from each other, as shown by dashed lines in FIG. 2. The piston rods of the hydraulic cylinders 144 and 145 of the claws are also set to the injected position, in which the clamps 142 and 143 are opened and located one distance from the other, as shown in FIG. 3 solid lines. Thus, the zone in which the tree enters is vertical and is located between the right 77 and left 78 butts and between the right 142 and left 143 hooks. Actuated
    The cylinders 1 9--2 1 of the manipulator 14, which are mounted on the falcon head in a position in which the central part 32 of the stiffening element 31 is in contact with the tree trunk to be rolled. As a result, the tree trunk is positioned vertically with the mecha knives and behind the hooks of the felling head. Then the distributor 1Ы is transferred from its neutral position shown in FIG. 5 to its left position; wherein the pump 162 and the hydraulic unit 63 are connected to the hydraulic cylinders 144 and 145 of the claws in such a way that the flow occurs. In order to catch the bite, grab the 142 and 143 zakrzhiashts squeeze the tree trunk, Dshhee distributor 78 transfer / gits from his {her): ndy position and, shown in FIG. 5, in the left position; in this case, pressure is applied to the cavity between pistons 106 and 107, piston rods 104 and 105 are pushed out and rotates salt-like shaft 39 and 405, as a result of which the knives move towards their closed position. as shown in FIG. 2 completely nni ni mi. The constructions of the right and left hand-over gear mechmon sg-sgt respectively of the right and right 39 and left-sided 40 shafts, right 61 and the left 62 links, and the short-circuit right 47 and the left 48 of the hinge; is such that in the initial period of cutting, when cutting edges, the edges 79 and 80 of the knives 77 and 78 of the cut, enter from the anti-grip side into the trunk of the trunks, psemera. points to the axis of the trunk increase. At the end of the cutting institute, the knives 77 and 78 are joint with the gripper, and 42 and 143 are kept under the tree; in slz tea, if a-pke iodine, a comparison is made: on a large tree, it is supported by the large tree; the clamping plates 99 and 100 are the same.
    The described order of work can also be used when felling a tree whose butt is located under the snow, as when installing knives 77 and 78 in the open-sided lol7: the curvature of these knives allows them to act like a plow - installation of the felling shaft collar 18 near the cockpit of the tree. When moving knives 77 and 78 in a layer of snow, garbage
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    etc. the tree trunk, which is subjected to felling, pushes snow and tlt. through window 98 and through another corresponding window located on the opposite side of the felling head. Dirt, snow or other extraneous material remaining on the upper surfaces of the knives after cutting wood is removed from the knives by the action of its own weight when they are re-extended,
    In order to increase the service life of curvilinear knives 77 and 78, when these knives are mounted on the right 47 and left 48 levers, the knives are preloaded. For jTor .i between the corresponding points of KpoHiti - the theories of levers, zeros, and angular crzestein stems of the mouth; This includes the number of gaskets 92 and 97 that;,. The knife is tightly integrated into the npocBui: I wait for the fins of thevs E levers. Then, each set of gaskets to, installed m (;; to these named krongatains, for example, one gasket is installed, and the bolts 89, 40, and 95 are installed, they are installed: x ifa pered- PK.- and rear crowns / taine ryg - :, chgog; with this tightening ,-:: iT the grub of the knives 77 and 78 in on „LG / g from the cutting edge parallel to them; 79 and 80,
    7 A desirable value of overlap 1, m; 77 and 78 knives also sets the assembly of knots 75 and 76 of the right and left knives on the right: h am1 47 and 48, unsupported .- (And, P, l of this goal in the gap between p} g. K; lmi the walls of the corresponding -jUJaTeiOTOB 63, 64., 69 and 70 direct with: th) fyrm and corner brackets ™ - | B 87, 58, 93 and 94 is set to 1K: pads, so that the size of knives 1 and 77 and 78 b) 1-1c rattta, approximately, the width of the bevels of the cutting edges 79 and 80,
    The hinge assembly 148, combined with the times; the extreme 1-1I boxes for transferring the working medium, makes it possible to keep the pipelines 159, 160, 181 and 182 in a displaced state regardless of the angular position of the felling head 18 relative to the second section 17 arrows . In addition, due to the placement of the working holes of the knives' hydroshield 103 on a small
    one from the other, in the middle of the middle part 122 of the cylinder, in the position of alignment in the longitudinal direction with the points of connection of pipelines 181 and 182, respectively, with the right 153 and left 154 branch boxes, the pipelines 181 and 182 can be made relatively short.
    Thus, the proposed mechanism provides in all conditions the cutting of trees directly
    J near the ground, as well as the capture and the following reliable retention of cut wood; at the same time, snow, dirt, etc., trapped along with the tree, is replaced, which also increases
    10 sa reliable operation and increases the durability of the mechanism.
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    权利要求:
    Claims (10)
    [1]
    1. MECHANISM FOR CUTTING TREES, comprising a housing with horizontal grippers that are rotatable by means of hydraulic cylinders, and in the lower part of which, by means of a hinge having a pivot axis perpendicular to the front surface of the housing, rotary cutting heads are mounted, each of which is shifted forward relative to the front surface of the housing and has a circular arched knife, the center of the circle along which it is located coincides with the axis of rotation of the cutting heads, and the cutting edges of the knives are located at their edges, and a hydraulic actuator, turning the cutting heads with a power cylinder, characterized in that, in order to reduce the level of the cutting surface of the trees, two shoulders are mounted on the body from its lateral sides, the rotation axes of which are parallel to the axis of rotation of the cutting heads and are located on it from with a nominal distance equal to, the mechanism snab- S wives intermediates, one ends of which are connected with one of the arms of two-armed levers, and others with cutting heads which are associated with the hinge means of levers, the other arms d uplechih levers are interconnected by the power cylinder.
    SU „„ 1218915
    Fig.]
    [2]
    2. The mechanism according to π, 1, о. This is due to the fact that the body is equipped with horizontally arranged supports for two-arm levers, and the axis of rotation of the cutting heads is located below the straight line connecting these supports.
    [3]
    3. The mechanism of claim. ^ Characterized in that each cutting head has a sleeve, and each of the levers is made of two plates parallel to each other and passing through the sleeve, the ends of which protrude from the sleeve and are interconnected by means of a connecting element mated to a bushing, moreover, on the other side of the bushing, the plates are connected in -. means of another connecting element, also associated with the sleeve.
    [4]
    4. The mechanism according to p. 3, characterized in that the bushings are closed on one side and have on their inner opposite sides two elements for gripping the butt of the tree, located above the blade knives.
    [5]
    5. The mechanism according to p. ^ Characterized in that each sleeve has two corner support brackets, one face of each of which is parallel to the cutting edges of the knives, and the other is perpendicular, with the first faces located with a gap to form an opening for soil passage.
    [6]
    6. The mechanism according to p. ^ Characterized in that each blade knife has two pairs of support racks, and one of the racks of each pair is located in a direction parallel to the cutting edges of the knives, and the others are perpendicular.
    [7]
    7. The mechanism of pop. 6, characterized in that the corner support brackets and support racks are interconnected by detachable fastening elements, and gaskets are installed between them to control the displacement of the knives in the direction along the cutting edges and the extent of their overlap.
    [8]
    8. The mechanism according to p. ^ Characterized in that the housing is equipped with stops interacting with the ends of the power cylinder to prevent its longitudinal movement.
    [9]
    9. The mechanism of π. 1, characterized in that it is mounted on the boom of the manipulator by means of a hydraulic tubular distributor and a hinge device.
    [10]
    10. The mechanism of pop. 9, characterized in that the tubular distributor is connected via pipelines to a power cylinder for turning the cutting heads and hydraulic cylinders for turning the grippers.
    类似技术:
    公开号 | 公开日 | 专利标题
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    JP3817624B2|2006-09-06|Cutting machine
    US3721280A|1973-03-20|Self-propelled tree delimber
    US6622761B1|2003-09-23|Delimbing apparatus
    US4088163A|1978-05-09|Tree shearing device
    US4189010A|1980-02-19|Power angling bulldozer assembly
    US4022259A|1977-05-10|Tree shear
    CA2190337C|2003-06-10|Grab harvester
    US3842872A|1974-10-22|Delimber assembly for tree harvesting machines
    US3305027A|1967-02-21|Two-way plow
    FI122910B|2012-08-31|Articulation mechanism for a harvester head
    同族专利:
    公开号 | 公开日
    US3826295A|1974-07-30|
    DE2411542B2|1976-09-02|
    DE2411542A1|1974-11-14|
    SE418562B|1981-06-15|
    NO137805B|1978-01-23|
    NO137805C|1978-05-03|
    AU6233873A|1975-05-15|
    FR2227098B1|1978-07-28|
    FR2227098A1|1974-11-22|
    NO741434L|1974-10-29|
    AU468461B2|1976-01-15|
    CA991961A|1976-06-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3572411A|1968-12-10|1971-03-23|Rome Industries|Tree harvester|
    US3540501A|1969-06-23|1970-11-17|Brundell & Jonsson Ab|Means for cutting trees|US4044806A|1972-09-29|1977-08-30|B. J. Powell|Tree processing machine|
    US3862652A|1974-02-07|1975-01-28|Deere & Co|Tree shear head|
    US3888287A|1974-04-10|1975-06-10|Deere & Co|Blade for tree shear having vertically swingable blade support arms|
    US4039009A|1974-06-05|1977-08-02|Ostbergs Fabriks Ab|Hydraulic control system for a tree felling unit|
    US3910326A|1974-10-29|1975-10-07|Case Co J I|Tree harvesting apparatus with accumulator mechanism|
    CA1024421A|1975-08-06|1978-01-17|Lucien Levesque|Tree shearing device|
    US4077446A|1977-03-07|1978-03-07|Deere & Company|Tree shear actuator restraint system|
    US4077447A|1977-03-07|1978-03-07|Deere & Company|Tree shear actuator restraint system|
    DE2805353C2|1977-03-07|1983-10-27|Deere & Co., Moline, Ill., US, Niederlassung Deere & Co. European Office, 6800 Mannheim|Tree cutting device with two shear blades that can be pivoted in opposite directions via crank arms|
    US4452287A|1982-07-19|1984-06-05|Eaton Corporation|Feller assembly for tree harvesting apparatus|
    FR2608032B1|1986-12-15|1989-04-07|Robot Coupe Sa|APPARATUS FOR EXTRACTING FRUIT AND VEGETABLE JUICES|
    WO2014148923A2|2013-03-19|2014-09-25|Waratah Nz Limited|A timber-working head and drive wheel arm|
    US20210169020A1|2018-05-02|2021-06-10|Engineering Services Rotorua Limited|Replaceable Knife Insert|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US00354480A|US3826295A|1973-04-26|1973-04-26|Felling head structure|
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