专利摘要:
A forage harvester has a rotary cylinder type cutterhead mounted in a housing with opposite side walls, crop material being fed into the cutterhead in a generally radial direction over a shear bar adjacent the cutterhead periphery. The shear bar is mounted for fore and aft adjustment toward and away from the cutterhead periphery to maintain the optimum clearance between the cutterhead and the shear bar by means of a mechanism that includes a pair of bell cranks respectively pivotally mounted to support members on the opposite walls, with one end of each bell crank being connected to the shear bar through a fore and aft link while the other end of the bell crank threadably receives the threaded portions of a vertically elongated rod that is rotatably supported adjacent the housing side wall and has an easily accessible head adjacent the top of the housing, whereby rotation of the rod causes the bell crank to rock on its pivot to cause linear fore and aft adjustment of the shear bar. The force exerted through the adjusting mechanism is sufficient to overcome a clamping force exerted by a bolt and nut that clamps the shear bar to the supporting structure at opposite ends of the shear bar without loosening the clamping bolt.
公开号:SU978711A3
申请号:SU792788555
申请日:1979-07-02
公开日:1982-11-30
发明作者:Юджин Де Бур Гарольд;Дуан Басс Мерлин;Ли Крафка Джерри;Лесли Вольф Дэвид;Ричард Кристофер Кеннет
申请人:Диир Энд Компани (Фирма);
IPC主号:
专利说明:

(54) BLOWER MOWER
权利要求:
Claims (2)
[1]
FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to harvesting machines with grinding of the crop to be harvested. A grinder mower is known that contains a frame with side walls, between which a cutting blade, a transverse blade, a knife support and a knife position adjustment mechanism located relative to the cutting head C 1 are installed. A disadvantage of the known device is that access to the clamping and adjusting bolts opposite to the knife edges is difficult, which makes it inconvenient to maintain the device. The purpose of the invention is to improve the service conditions of the device. This delta is achieved by each knife adjustment mechanism provided with a connecting element, a supporting protrusion rigidly mounted on the side wall, a supporting element with a lever that is hingedly mounted on the supporting element and connected on one side by means of a screw mechanism with a supporting element, and with the other side using the connection with the connecting element. The transverse blade, the blade support and the supporting member are interconnected by means of a bolt joint, the connector member and the transversal blade being mounted relative to the bolt with a gap to ensure their longitudinal movement relative to the blade support and the support lug. Fig, 1 shows the housing of the cutting head of the mower-grinder, side cut (mower-grinder is not shown); in fig. 2 shows section A-A in FIG. 1 (cutting knife in the plan and adjusting device); in fig. 3 shows a section BB in FIG.
[2]
2. Kos1 | lka chopper contains a frame 1 on which the cutterbed case 2 is installed, which includes the right and left side walls 3 and 4 and the horizontal top wall 5 extending between the opposing side walls. On the 3978 rear side of the upper wall 5, also across the entire width of the cutting head body, there is a cover 6 of the upper hatch, hung under the transverse loop 7, which allows opening the cover upwards to provide access to the inside of the cutting head from above and behind. The body of the cutting head also includes two longitudinal trough-shaped frame elements 8 extending along the lower portions of the side walls, and a transverse tubular frame element 9 connecting the frame members 8 between the lower front portions of the side walls. The main frame 1 includes an axis 10 located under the body of the cutting head, on which the running wheel wheels (not shown) are mounted. Two mounting transverse lugs 11 out of front upper corners of opposing lateral walls (in Fig. 1, only the right eyelet is shown). The two lower mounting lugs 12 also protrude from the lower front corners of opposing side walls 3 and 4, the Upper and lower front feed rolls 13 and 14, respectively, are suspended on pins between the right and left side walls 3 and 4 at the front edge of the housing 2, and the upper and lower back serve. The rollers 15 and 16 are similarly located between the opposing side walls 3 and 4. The feed rollers 14 and 16 are adjacent to one another and fixed in the axial direction, and the upper rollers are installed with possibility. rotation in a device that permits vertical adjustment of the feed rolls to change the gap between the respective upper and lower feed rolls according to the thickness of a layer of plant material fed backwards between two pairs of feed rolls, the upper rolls rotate clockwise and the lower ones in the opposite direction. The upper rear swath 15 is set to. Levers 17. The feed rolls transfer plant material backward over the transverse knife 18, which overlaps the width of the cutting head body, directly behind the lower rear feed roll 16. The rear feed rolls drop plant material over the knife 18, usually in the radial direction, into the cutting center 19, tilt-mounted in the case of 2 Golokki rezhus. 4 On top of the knife 18, a sharpening device with a grinding stone is installed in the housing, the position of which is adjusted to move to the periphery of the cutting head and which with the help of the handle 20 can perform reciprocating movement in the vicinity of the periphery of the cutting head The handle 20 is located on the outer side of the cutting head body. The movement of the sharpening device can be adjusted in the direction to the periphery of the cutting head and reverse by means of a crank lever 21 located next to the handle 20 on the The right side of the cutting head housing; (the internal elements of the sharpening device are not shown.) The vertical longitudinal front screen 22 is rotatably mounted on the right side wall by means of two vertical loops 23 outside a short distance from the right side wall 3 and shields the suspension device the upper feed rolls and the drive part of the lower feed rolls. The same longitudinal vertical screen 24 is rotatably mounted on the body of the cutting head 2 and rotated on a loop at its rear Konda, closing the belt drive, connecting the head with the drive shaft for unloading pneumatic conveyor. The plant material crushed in the cutting head is discharged back through the discharge window in the rear wall of the body of the cutting head B a screw conveyor (not shown), which transfers the crushed material to a pneumatic lift (not shown) located on the left side of the device. The rear screen is located outside the front screen 22 and intersects the rear end of the front screen so that the movable parts located in the right side of the body of the cutting head are fully protected. The transverse blade 18 is supported on the body 2 of the cutting head with the ability to move to and from the cutting head, so as to adjust the gap between the blades of the cutting head and the blade of the transverse knife. Two devices 25 for fastening and adjusting the knife generally connect the opposite ends of the knife to the opposing side walls 3 and 4. The knife support 26 is a steel bar with a rectangular cross section, extending between the opposite sides of the body, the blade 18, finished in a similar way in the form of an elongated steel bar with a right angle cross section identical to that of the knife support 26. The opposite ends of both the knife and the knife support pass through the openings 27 in the opposing side walls, and these openings are large enough to make adjustments to the knife in the longitudinal direction, although at least one edge section: the openings to the knife support welded to the opposing side walls adjacent to these openings. The knife support has a vertical hole 28 near each end located outside the side walls, and the knife mounting and adjusting device 25 includes a support element 29 with a transverse rectangular groove 30. The support element 29 has a vertical threaded hole 31 located coaxially with the hole 28 .In the hole 31 of the support element in the shown embodiment includes a nut. A vertical bolt 32 extends downward through the knife support hole 28 and is screwed into the threaded hole 31 so as to connect the bearing member to the knife support. The support member 29 has a transverse axis 33 behind the knife support, and the opposite ends of the axis 33 extend beyond the opposing edges of the support member. The support member also includes a vertical stand 34 located behind the knife support, the upper part of which is hollowed out and includes opposing side walls 35, a vertical front wall 36 with longitudinal holes 37 and a horizontal top wall 38 with a vertical hole 39, on the axis 33 on opposite The sides of the support element are mounted with two identical levers 4O, connected by a transverse connecting bar 41, the opposite ends of which are hinged to the opposing crank levers. The connecting bar 41 has a vertical threaded hole 42, into which an adjusting screw enters, with a thread or a rod with a thread 43. The threaded rod portion 43 goes down through the hole 39 in the upper wall of the support, and the two bearings 44 are installed the sides of the upper wall 38 and holding two 97 lids in the form of washers 45 and two nuts 46 with a corresponding thread, mounted on the rod section with a thread on opposite sides of the upper wall 38, pressed against the opposite sides of the upper wall 38; th element. The bottom nut 46 is fixed in a certain position on the threaded rod section with a standard pin 47. Thus, the threaded rod is rotatably supported in the support member 29 so that by rotating the rod, the vertical movement of the connecting bar 41 is performed and, consequently, the movement of the arms 4O, which are long enough to rotate about axis 33. The threaded rod extends vertically along the outer side of the side wall and is provided with a shank 48 located adjacent to the side stem Coy and conventional bolt head or other element 49 located prhtmerno on the same level as the top wall 5 of the housing reisuschey head, and the threaded rods opposing adjustment, devices extend along the outer sides of opposed sidewalls. The connecting member 50 is provided with a transverse groove with a rectangular cross section, and the link 51 passes between the front arms of the levers 40, the opposite ends of the link 51 are pivotally connected to the opposing levers. The central section of the bar has a square, cross-section, and the longitudinal dimensions of the bar correspond to the width of the groove 52 between the levers 40 and the connecting elements 50 and ensure free alignment only in the vertical direction, thus turning the levers relative to their axes causes the longitudinal displacement of the element 50. The connecting element 50 abuts in the upper and front sides of the knife 18, in a way that the backward movement of the connecting element leads to a corresponding backward movement of the knife. In the body of the knife there is a vertical hole or slot 53 located coaxially with the hole in the knife's support, and the slot size in the longitudinal direction is substantially larger than the diameter of the bolt 32, which also passes through the slot in the knife body. The connecting element 5O has a slot 54 located coaxially with a slot in the body of the knife, and the bolt 32 also passes down through the slot 54 in the connecting element. The longitudinal support protrusion 55 intersects the rear end of the connecting element, and has a vertical hole 56 located coaxially with a vertical hole in the support element, and the bolt 32 also passes through the hole in the support protrusion in such a way. So that the head, the bolt rests on the upper surface of the support lug so that during tightening the bolt squeezes the support lug 55, the connecting element 50, the knife 18, the knife support 26 and the supporting element 29 into one package. The bearing lug passes back through a hole 37 in the front wall of the stand 36 and has a transverse groove 57 located on the lower side thereof behind the hole 37, into which the transverse pin 58 extends between the side walls of the stand 35 so that the support lug 55 is fixed in the longitudinal direction. Thus, both the upper and lower ends of the bolt 32 are fixed in the longitudinal direction in the support element. The connecting element 50 includes two transverse protrusions overlapping the upper surface of the knife, and two vertical bolts 59, respectively, pass down through the vertical holes in the projections and into the threaded hole in the body of the knife in order to attach the knife to the lower surface of the connecting element. 32 are normally tightened, the supporting protrusions 55 are stacked, the connecting element 50, the knife 18, the support rod 26 and the supporting element 29 are in a single unit, and therefore all these parts are supported. to the body of the cutting head through the knife support 26, welded to the opposing side walls of the housing. The adjustment of the position of the knife is carried out as follows. To move 18 back after sharpening, the adjusting screw 43 is turned to reduce the gap between the cutting head and the knife blade, and since it remains fixed in the vertical position in the upper wall 38 of the support element stand 34, the adjustment screw rotates the vertical beam 41 and rear ends of the levers 40f attached to it. The adjusting screw is rotated so that the levers 40 turn against the 1-hour arrow relative to axis 33, which leads to movement along the arc 51 of the link connected to the upper leading edges of the levers. The vertical free connection between the bar and the connecting element 50 causes the ped to move the hinge only in the longitudinal direction, so that turning the levers 40 counterclockwise moves the connecting element backward. The groove in the connecting element and in the knife 18 creates the possibility of longitudinal adjustment of the connecting element and the knife without changing the position of the clamping bolt 32, since the longitudinal friction force between the knife, the knife support and the connecting element and the supporting lug is overcome when clamped. The supporting protrusion is locking in the longitudinal direction so that, together with the supporting element 29, to ensure the longitudinal position of the upper and lower ends of the str1 {s 32 bolts. The linear longitudinal force is transmitted through the center of the clamping bolt so as not to deform the transverse blade. To adjust the position of the opposing cutters of the knife, the operator adjusts both devices 25 on opposite sides of the machine. As a rule, the adjustment of the opposite ends of the knife lasts as long as the operator hears -clicking from the light contact of the cutting head with the cross-section. The operator then shifts the knife backward by slightly turning the adjusting screw in the opposite direction until the click is gone, and then repeats this operation on the opposite side of the cutting head. With such an adjustment of the position of the opposite ends of the cutting blade of the knife, when the click from the light contact of the cutting head with the knife is stopped, the desired clearance of 0.12-0.25 mm is obtained. The adjustment operation can still be carried out while the machine is running, when both screens 22 and 24 are still in place. The operator does not have to stop the machine and use various kinds of complex calibration devices to carefully measure the gap between the cutting head and the knife. Since the adjustment of the position of the knife using the enhancer1. Since the adjustment and support device is so fast and simple, the operator prefers the 9978 to increase the efficiency of the optimum clearance clearance. The adjusting screw can be turned using a remote control device, such as an electric motor. The use of end clamps or similar devices to measure the gap between the cutting head and the knife, in conjunction with the specified motor, allows the development of an automatic adjustment system to maintain the opgam gap. Claim 1. The chopper mower, comprising a frame with side walls, has a cutting head, a transversal knife, a knife support, and a knife position adjustment mechanism relative to the cutting head, positioned between each wall, between the ketors;
FIG. 1 110 each knife position adjustment mechanism is provided with a connecting element, a supporting protrusion rigidly mounted on the side wall, a supporting element with a lever that is hingedly mounted on the supporting element and connected on one side by means of a screw mechanism with a supporting element, and on the other. hand by means of communication with a connecting element. 2. The mower chopper according to claim 1, wherein the connecting member, the transverse blade, the operator of the knife and the supporting member are interconnected by means of a bolted joint, the connecting member and the transversal blade being mounted relative to the clearance bolt for ensuring their longitudinal movement with respect to the knife support and the support lug. Sources of information taken into account in the examination 1. US Patent No. 4055309, cl. 241/221, 1977.
类似技术:
公开号 | 公开日 | 专利标题
SU978711A3|1982-11-30|Mower and crusher
EP0382527B1|1993-04-28|Grass cutting unit
US3940913A|1976-03-02|Row crop harvesting apparatus
US4055309A|1977-10-25|Adjustable cutter bar support
US5036652A|1991-08-06|Self-propelled harvester
US4474336A|1984-10-02|Method and means for adjusting a forage harvester shear bar relative to a rotating chopping cylinder
CA1298471C|1992-04-07|Hinged feed roll housing
US3397520A|1968-08-20|Hay harvesting and conditioning device
US2735469A|1956-02-21|Reel type chopping mechanism
US2794438A|1957-06-04|Adjustable concave having shear pin
US3342231A|1967-09-19|Forage harvester
US3217765A|1965-11-16|Ear corn attachment for roller mills
US4218024A|1980-08-19|Adjusting device for the cutting blades of a cutting tool
DK144453B|1982-03-15|CROP CROCHEN
EP0664077B1|1999-10-06|Compressor rolls for a forage harvester
US3946954A|1976-03-30|Single blade recutter for forage harvester
US3431712A|1969-03-11|Ensilage harvester
US4278211A|1981-07-14|Tensioning mechanism for forage harvester feed roll assembly
US2829481A|1958-04-08|Forage harvester
US5845469A|1998-12-08|Mowing machine with automatic adjusting mechanism
US3452796A|1969-07-01|Adjustable cutterhead for a forage harvester
US3722190A|1973-03-27|Conditioner roll mounting means and cushioning stop system therefor
US4278210A|1981-07-14|Forage harvester feed roll mounting mechanism
GB2071477A|1981-09-23|Oscillating knife cutter
US3659403A|1972-05-02|Floating feeder beater
同族专利:
公开号 | 公开日
BG31461A3|1982-01-15|
JPS5515795A|1980-02-04|
GB2025205B|1983-02-02|
NL7905113A|1980-01-07|
CA1091554A|1980-12-16|
HU188623B|1986-05-28|
BE877407A|1979-11-05|
DE2926538C2|1982-08-05|
PL216819A1|1980-06-02|
PL118734B1|1981-10-31|
YU41868B|1988-02-29|
DK271479A|1980-01-04|
HUT35463A|1985-07-29|
YU155679A|1983-02-28|
US4190209A|1980-02-26|
MX149197A|1983-09-22|
DE2926538A1|1980-01-17|
NL175016B|1984-04-16|
IT7949611D0|1979-07-02|
GB2025205A|1980-01-23|
NL175016C|1984-09-17|
JPS6247490B2|1987-10-08|
FR2430191A1|1980-02-01|
IT1118872B|1986-03-03|
FR2430191B1|1984-03-16|
引用文献:
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
US05/921,282|US4190209A|1978-07-03|1978-07-03|Adjustable shear bar for a harvester cutterhead|
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