JP5756592B2 - Combine - Google Patents

Description

  The present invention relates to a combine having a weed pod on the lateral outside of a cutting part.

  Conventionally, when a harvesting operation is performed using a combine, it has been necessary to prevent the uncut grain culm from being caught by the harvesting unit or the uncut grain culm from being pushed by the crawler type traveling device of the traveling unit on the airframe side. Therefore, the weed pods were provided on the side of the mowing part or the mowing part and the machine body so that the uncut cereal rice cake on the left side of the mowing part could be pushed away from the mowing part or the machine body. . Then, the weed shears are horizontally moved in the left-right direction (lateral direction of the aircraft) by a position adjusting device provided on the aircraft, and are separated from the mowing unit and the storage position close to the aircraft, and the mowing unit and the aircraft. It was configured to be changeable to the overhanging position.

  In such a configuration, for example, as in Patent Document 1, the weed fold can be rotated around the longitudinal axis of the machine body, and can be changed between the retracted position and the extended position by a drive device serving as a position adjusting device. Techniques to do this have been proposed. In addition, a technique has been proposed in which a weed fold is horizontally moved in the left-right direction (lateral direction of the machine body) and can be changed between a storage position and an extended position by a drive device serving as a position adjustment device.

  However, in the configuration in which the left and right position of the weed shears is changed by rotating the weed shears around the longitudinal axis of the aircraft, changing the left and right positions of the weed shears will change the vertical position of the weed shears There was a problem. In other words, changing the left / right position also changes the height at which the weed basket hits the cereal, so if the cereal length (height) is different at the planting position even in the same field, it may not be possible to properly weed. It was. In addition, in the configuration that changes the left and right position of the weed shears by horizontally moving the weed shears in the left and right direction (lateral direction of the aircraft), the position adjustment device has been enlarged to ensure a sufficient amount of movement of the weed shears There is a problem that it is difficult to dispose the position adjusting device on the airframe.

Japanese Patent No. 3633861

  The present invention has been made in view of such problems, and can sufficiently secure the amount of movement in the left-right direction of the weed culm without increasing the size of the position adjusting device, and also varies the vertical position of the weed culm. The purpose of the present invention is to provide a combine that can change the left and right position of the weed bud without making it.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

In Claim 1, the cutting part (3) provided in the front part of the body and one end thereof are swingably connected to the lateral outer side of the cutting part (3), and the other side extends in the rear direction of the body. And a supporting rod (42) whose one end is swingably connected to the weeding rod, the mowing unit (3) or the machine body, and the supporting rod (42) In a combine including a position adjusting device (41) that supports the other side end of the airframe to be movable in the front-rear direction of the airframe and swingable in the front-rear direction of the airframe. ) Is configured such that the other side end of the support rod (42) can be moved to an arbitrary front-rear position by an actuator (415), and the support rod (42) is in the airframe relative to the actuator (415) side. first support member connected with movable state in the longitudinal direction of the (422) And a second support member (423) that is swingably connected to the weed ridge (43) side, and an arm (421) that connects between the two support members, the arm (421) Is constituted by an elastic member formed by bending a leaf spring into a bow shape.

  According to a second aspect of the present invention, in the combine according to the first aspect, the position adjusting device (41) is configured to be rotatable in the vertical direction about an axis (441) parallel to the front-rear direction of the machine body as a rotation center. Is.

  In Claim 3, in the combine according to Claim 1 or Claim 2, the position adjusting device (41) includes a pulling longitudinal transmission pipe (306) of the cutting part (3) and the cutting part (3). Between the side cover (35).

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, the left and right positions of the weed folds can be arbitrarily adjusted by moving the other end of the support rod in the front-rear direction of the machine body by the position adjusting device. As a result, it is not necessary to increase the size of the position adjustment device, and it is not necessary to provide an installation space in the left-right inward direction of the body frame, so that a sufficient amount of lateral movement of the weed culvert can be ensured.

  Further, the left and right position of the weed ridge can be changed by swinging the support ridge in the left and right direction. As a result, it is possible to change the left and right position of the weed cocoon without changing the vertical position of the weed moth.

  Further, the position adjusting device has a simple configuration, and the position adjusting device allows the combine operator to easily adjust the position of the support rod to an arbitrary position by remote control. As a result, it is not necessary to increase the size of the position adjusting device, and it is not necessary to provide an installation space in the left-right inward direction of the body frame, so that the amount of lateral movement of the weed ridge can be ensured.

  In the second aspect, in addition to the effect of the invention described in the first aspect, the vertical position of the weed pod is arbitrarily changed without substantially changing the left and right position of the weed fold just by turning the position adjusting device. Can be adjusted. Therefore, since only the vertical position of the weed cocoon can be changed according to the length (height) of the cereal, it is possible to properly weed.

  In the third aspect, in addition to the effect of the invention according to any one of the first and second aspects, the position adjusting device is installed at a position close to the swing center of one side end of the weed pod. Therefore, it is possible to increase the lateral movement amount of the weed pod with respect to the lateral movement amount of the weed pod.

The left view which shows the whole structure of the combine which concerns on one Embodiment of this invention. FIG. The left view which shows the harvesting frame of the combine which concerns on one Embodiment of this invention. 1 is an overall plan view of a combine weeding device according to a first embodiment of the present invention. Similarly an enlarged plan view. The partial exploded perspective view which shows the structure of the position adjustment apparatus of the combine which concerns on 1st embodiment of this invention. The partial exploded perspective view which shows the structure of the position adjustment apparatus of the combine which concerns on 1st embodiment of this invention. (A) The perspective view which shows the assembly | attachment structure of the position adjusting device of a combine and support rod which concern on 1st embodiment of this invention. (B) The perspective view which shows the assembly | attachment structure of the support rod and the weed fold of the combine which concerns on 1st embodiment of this invention. The top view which shows the state at the time of changing the right-and-left position of the weed fold by the position adjustment apparatus of the combine which concerns on 1st embodiment of this invention to the separation position. The top view which shows the state at the time of changing the right-and-left position of the weed pod by the position adjustment apparatus of the combine which concerns on 1st embodiment of this invention to the storing position. The front view which shows the mode of adjustment of the up-and-down position of the weed pod by the combine position adjustment apparatus which concerns on 1st embodiment of this invention. The top view which shows a mode that a support rod deform | transforms when external force is added to the combine weeding apparatus which concerns on 1st embodiment of this invention. The top view which shows the mode of adjustment of the left-right position of the combine weeding apparatus which concerns on another embodiment of this invention. The top view which shows a mode that a support rod deform | transforms when external force is added to the combine weeding apparatus which concerns on another embodiment of this invention.

  First, the whole structure of the combine 1 which concerns on one Embodiment of this invention is demonstrated using FIG. 1 and FIG.

  As shown in FIG. 1 and FIG. 2, the combine 1 has a traveling unit 2, a mowing unit 3, a threshing unit 4, a sorting unit 5, a grain storage unit 6, A spear processing unit 7, a control unit 8 and the like are provided.

  The traveling unit 2 is provided at the lower part of the body frame 9. The traveling unit 2 includes a crawler traveling device 21 having a pair of left and right crawlers, and the like, and is configured to be able to travel the aircraft in the forward or backward direction by the crawler traveling device 21.

  The mowing unit 3 is provided at the front end of the machine body frame 9 (front part of the machine body) so as to be movable up and down relative to the machine body. The cutting unit 3 includes a cutting frame 30, a weed board 31, a pulling device 32, a cutting device 33, a conveying device 34, a side cover 35, and the like, and the rice straw in the field is transferred by the weeding plate 31. After weeding, the cereals after weeding are caused by the pulling device 32, the roots of the cereals after the lifting are cut by the cutting device 33, and the cut cereals are transported to the threshing unit 4 side by the transport device 34. Configured to be able to.

  A weeding device 40 is provided on the left lateral outside of the cutting unit 3 and the aircraft. As will be described in detail later, the weeding device 40 prevents the uncut rice mash from being caught by the cutting unit 3 during the cutting operation, or the uncut rice mash by the crawler type traveling device 21 of the traveling unit 2 on the machine body side. It is configured to prevent trampling.

  The threshing unit 4 is provided on the left side of the body frame 9 and behind the reaping unit 3. The threshing unit 4 is composed of a handling cylinder (not shown). The threshing unit 4 inherits the cereals conveyed from the cutting unit 3, threshs the cereals being conveyed by the handling cylinder, etc., drops the threshing processed product to the sorting unit 5, and the side of the culling processing unit 7 Configured to transport to.

  The sorting unit 5 is provided on the left side of the machine body frame 9 and below the threshing unit 4. The sorting unit 5 sorts the processed material dropped from the threshing unit 4 into grains, spiked grains, non-degranulated, waste, dust, and the like by swing sorting and wind sorting using a swing sorting device. And the selection part 5 is comprised so that the selected grain may be conveyed to the grain storage part 6, a grain with a head and unthreshing may be conveyed to the threshing part 4, and a waste, dust, etc. may be discharged | emitted outside. .

  The grain storage unit 6 is provided on the right side of the body frame 9 and on the right side of the threshing unit 4 and the sorting unit 5. The grain storage unit 6 includes a grain tank 61, a grain discharge device 62, and the like. The grain storage unit 6 stores the grain conveyed from the sorting unit 5 in the Glen tank 61 and discharges the grain stored in the Glen tank 61 to the outside of the machine body by the grain discharging device 62. Composed.

  The waste disposal unit 7 is provided at the rear of the machine frame 9 and behind the threshing unit 4. The waste disposal unit 7 includes a waste transport device 71, a waste cutting device 72, and the like. The slaughter processing unit 7 inherits the threshed sorghum from the threshing unit 4 by the sewage transfer device 71 as sewage and discharges it to the outside as waste, or transports it to the swarf cutting device 72 and cuts it. It is configured to be discharged to the outside of the aircraft later.

  The control unit 8 is provided on the right side of the body frame 9 and on the right side of the cutting unit 3. The control unit 8 includes a cockpit 81, a steering handle 82, a cabin 83, and the like. The control unit 8 is configured such that the control seat 81 and the operation tools are covered by the cabin 83.

  In this way, the combine 1 transmits the power of the engine (not shown) to the devices of the respective parts by operating the operating tools in the control unit 8, and causes the traveling unit 2 to travel the aircraft while the harvesting unit 3 Harvesting cereals in the field, threshing cereals from the reaping unit 3 in the threshing unit 4, sorting the processed products from the threshing unit 4 in the sorting unit 5, and cereals from the sorting unit 5 in the grain storage unit 6. At the same time as storing the grains, the waste processing unit 7 is configured to discharge the waste from the threshing unit 4 to the outside.

  Next, the configuration of the cutting frame 30 of the cutting unit 3 will be described with reference to FIG.

  As shown in FIG. 3, the cutting frame 30 includes a cutting input pipe 301, a vertical transmission pipe 302, a horizontal transmission pipe 303, a weed frame 304, a driving pipe 305, a pulling vertical transmission pipe 306, a pulling horizontal transmission pipe 307, and pulling drive. A pipe 308, a connecting frame 309, and a support pipe 310 are provided.

  The cutting input pipe 301 is disposed at the front end of the body frame 9 so that the axial direction thereof coincides with the left-right direction. The longitudinal transmission pipe 302 is disposed in front of the cutting input pipe 301 and extends from the middle part of the cutting input pipe 301 toward the lower front side. The horizontal transmission pipe 303 is disposed in front of the vertical transmission pipe 302 and extends from the tip of the vertical transmission pipe 302 in the left-right direction.

  The plurality of weed frames 304, 304,... Are arranged in front of the horizontal transmission pipe 303, and are arranged in parallel with each other at an appropriate interval in the left-right direction. The drive pipe 305 is disposed below the horizontal transmission pipe 303 in the front oblique direction, and is horizontally provided in the horizontal direction between the left and right weed frames 304 and 304 located on the outermost side. That is, the drive pipe 305 is arranged in parallel with the lateral transmission pipe 303 at a predetermined interval in the front-rear direction.

  The pulling longitudinal transmission pipe 306 is disposed above the lateral transmission pipe 303 and is erected from the left end portion of the lateral transmission pipe 303 toward the upper front obliquely. The pulling horizontal transmission pipe 307 is disposed in front of and above the horizontal transmission pipe 303, and is horizontally provided in the right direction at the upper end portion of the pulling vertical transmission pipe 306.

  The plurality of pulling drive pipes 308, 308,... Are disposed below the pulling lateral transmission pipe 307, and extend downward from the left and right middle portions of the pulling lateral transmission pipe 307 in the left-right direction at predetermined intervals. The connecting frame 309 is disposed behind the pulling horizontal transmission pipe 307 and extends rearward from the left and right midway part of the pulling horizontal transmission pipe 307 to the rear part of the vertical transmission pipe 302.

  The support pipe 310 is disposed below the pulling lateral transmission pipe 307 and extends downward from the left and right middle portions of the pulling lateral transmission pipe 307. The lower end of the support pipe 310 is connected to the weed frame 304 at the left and right center.

  Thus, the cutting frame 30 includes the cutting input pipe 301, the vertical transmission pipe 302, the horizontal transmission pipe 303, the plurality of weed frames 304, the drive pipe 305, the pulling vertical transmission pipe 306, and the pulling horizontal transmission pipe 307. The plurality of pulling drive pipes 308, the connection frame 309, and the support pipe 310 are integrally connected.

  Next, the structure of the weeding device 40 is demonstrated using FIGS. 4-8.

  The weeding device 40 pushes the uncut cereals on one side of the cutting unit 3, that is, on the left side in the direction of separating from the crawler type traveling device 21 of the cutting unit 3 and the traveling unit 2 during the harvesting operation by the combine 1. Thus, it is intended to prevent the uncut rice cake from being caught by the cutting unit 3 and the unrolled rice cake from being pushed by the crawler type traveling device 21 of the traveling unit 2 on the machine body side. As shown in FIG. 4, the weeding device 40 is provided on the left lateral outer side of the cutting unit 3 and the body frame 9. The weeding device 40 includes a position adjusting device 41, a support rod 42, and a weeding rod 43.

  The position adjusting device 41 adjusts the position of the weed ridge 43. The position adjusting device 41 is disposed on the left side of the pulling vertical transmission pipe 306 and on the right side of the side cover 35, that is, between the pulling vertical transmission pipe 306 and the side cover 35. As shown in FIG. 5, the position adjusting device 41 includes a support plate 411, a support arm 412, a base plate 413, a screw unit 414, a drive motor 415, and a guide roller 416.

  As shown in FIG. 6, the support plate 411 is a member formed from a substantially rectangular plate material with one corner cut out. The support plate 411 is disposed behind the pulling vertical transmission pipe 306 so that the plate surface on one side thereof faces the outer peripheral surface of the pulling vertical transmission pipe 306. On the left side of the support plate 411, a swinging through hole 411a is formed so as to penetrate the support plate 411 in the front-rear direction. Further, an adjustment long hole 411b is formed above the swinging through hole 411a of the support plate 411 so as to penetrate the support plate 411 in the front-rear direction. The adjustment long hole 411b is formed so that the longitudinal direction thereof is the left-right direction, and the longitudinal part is formed in a curved shape so as to coincide with a concentric circular arc centering on the oscillation through-hole 411a.

  The support arm 412 is a member formed by bending a round bar-like member into a substantially L shape. The support arm 412 is disposed in front of the pulling vertical transmission pipe 306 so as to face the support plate 411 with the pulling vertical transmission pipe 306 sandwiched in the front-rear direction. A substantially rectangular plate material 412b having two through holes formed in the front-rear direction is fixed to one side of the support arm 412, that is, the rear end, in a state of extending in the left-right direction. On the other side of the support arm 412, that is, the front end, a substantially rectangular plate material 412c having a through-hole 412a for swinging formed in the front-rear direction is fixed in a state of extending in the left-right direction. Here, the plate material 412b and the plate material 412c are arranged so that their plate surfaces are substantially parallel to each other.

  The base plate 413 is a member formed by bending a substantially rectangular plate material into a substantially U shape. The base plate 413 has a left side portion and left and right front and rear side portions continuous to the left side portion, and is disposed on the left side of the pulling vertical transmission pipe 306 so as to open to the right side. In the rear side portion of the base plate 413, a swinging through hole 413a is formed on the lower side so as to penetrate in the front-rear direction, and a through-hole 413b is formed on the right side of the vertical center thereof so as to penetrate in the front-rear direction. Is done. On the front side portion of the base plate 413, a rocking through hole 413c is formed at a position facing the rocking through hole 413a so as to penetrate in the front-rear direction. On the left side of the base plate 413, a pair of upper and lower through-holes 413d are formed on both front and rear ends, and a rectangular through-hole 413e is formed in the substantially central portion so as to penetrate in the left-right direction.

  A motor bracket 413f formed of a substantially pentagonal plate material is fixed to the left end of the rear side portion of the base plate 413 so as to protrude leftward with the plate surface parallel to the rear side portion of the base plate 413. Through holes 413g are formed in the left end portion and the upper and lower end portions of the motor bracket 413f so as to penetrate in the front-rear direction, respectively. A hollow cylindrical boss member 413h is fixed to a substantially central portion of the motor bracket 413f so as to penetrate the motor bracket 413f.

  A pair of upper and lower guides 413j formed by bending a substantially rectangular plate material into a substantially L shape on the pulling vertical transmission pipe 306 side on the left side of the base plate 413, each having one bent surface on the left side of the base plate 413. They are fixed in a state where they are brought into contact with each other and the other bent surfaces are protruded toward the longitudinal transmission pipe 306 side. The pair of upper and lower guides 413j are arranged along the upper outer edge portion and the lower outer edge portion of the through hole 413e, respectively, with the longitudinal direction being the front-rear direction. That is, the pair of upper and lower guides 413j are juxtaposed vertically with the through hole 413e interposed therebetween so that the other bent surfaces face each other.

  As shown in FIG. 7, the screw unit 414 moves a moving nut 414c screwed to the screw shaft 414a in the axial direction of the screw shaft 414a by the rotation of the screw shaft 414a. The screw unit 414 includes a screw shaft 414a, a moving nut 414c, and a pair of front and rear bearing members 414e. In the screw unit 414, the screw shaft 414a, into which the moving nut 414c is screwed, is pivotally supported by a pair of front and rear bearing members 414e at the front and rear ends of the screw shaft 414a so as to be rotatable and immovable in the front-rear direction. . The screw unit 414 is located on the left side of the left side of the base plate 413 such that one end of the screw shaft 414a is close to the rear side of the base plate 413 and the other end of the screw shaft 414a is close to the front side of the base plate 413. Placed in.

  The screw shaft 414a is a round bar member in which a screw groove is formed on the outer peripheral portion. A slit 414b is formed at the rear end of the screw shaft 414a.

  The moving nut 414c is a substantially cylindrical member formed through the screw hole in the shaft center portion. A pair of screw holes 414d are formed so as to penetrate in the left-right direction at both the left and right sides of the central portion of the moving nut 414c. The pair of screw holes 414d are juxtaposed on the left and right with the screw shaft 414a interposed therebetween.

  Each of the bearing members 414e is a member configured to include a bearing such as a bearing on a protruding portion formed in a vertically middle portion of a substantially rectangular parallelepiped block material. Through holes 414f are formed in the flange portions on both the upper and lower sides across the protruding portion of each bearing member 414e so as to penetrate in the left-right direction.

  The drive motor 415 rotates the screw shaft 414a. The drive motor 415 includes a connection shaft 415c and a bearing 415f in addition to the main body of the drive motor 415. The drive motor 415 is disposed behind the motor bracket 413f so that the output shaft of the drive motor 415 is parallel to the screw shaft 414a. Four attachment screw holes 415 a are formed in the main body of the drive motor 415. A gear 415b is fixed to the end of the output shaft of the drive motor 415, and this output shaft is linked and connected via a gear 415b to a connecting shaft 415c having a gear 415d formed at one end. An engaging surface 415e that can engage with the slit 414b of the screw shaft 414a is formed at the other end of the connecting shaft 415c. The connecting shaft 415c is disposed behind the motor bracket 413f so that its axis coincides with the axis of the screw shaft 414a, and is rotatably supported by the bearing 415f.

  The guide roller 416 prevents the moving nut 414c from rotating around the screw shaft 414a. In the guide roller 416, the roller 416b is rotatably supported on the support shaft 416a. The guide roller 416 is disposed on the right side of the moving nut 414c with the axial direction of the support shaft 416a set to the left and right direction so as to be orthogonal to the screwing direction of the moving nut 414c.

  As shown in FIG. 5, the support rod 42 supports the weed rod 43. The support rod 42 includes an arm 421, a first support member 422, and a second support member 423. The support rod 42 is disposed on the left side of the pulling vertical transmission pipe 306, that is, on the left side of the cutting unit 3.

  The arm 421 is an elastic member formed by bending a leaf spring into a bow shape. The arm 421 is arranged on the left side of the moving nut 414c with the one side, which is an arcuate protruding side, facing the left side. As shown in FIG. 8A, a part of the arm 421 on the other side is bent, and a pivotal support 421a capable of pivotal support is integrally formed. As shown in FIG. 8 (b), two through holes 421 b are formed at one end of the arm 421 so as to penetrate in the substantially left-right direction along with the extending direction of the arm 421. In addition, although the member which comprises the arm 421 is made into the leaf | plate spring in this embodiment, it is not specifically limited to this, What is necessary is just a member which can support the weed tub 43, but it is an elastic member Is preferred.

  The first support member 422 includes a support bracket 422a formed by bending a substantially rectangular plate material into a substantially U shape, a support shaft 422b, and the like. The support bracket 422a has a right side and upper and lower sides continuous to the right side, and is disposed on the left side of the moving nut 414c so as to open the left side. Through holes 422c and 422d are formed in substantially vertical center portions of the upper and lower sides of the support bracket 422a so as to penetrate in the vertical direction. A through hole 422e is formed in a substantially central portion on the right side of the support bracket 422a so as to penetrate in the left-right direction. A flange portion is formed at one end portion of the support shaft 422b so as to have an outer diameter larger than the inner diameter of the through holes 422c and 422d, and a retaining ring groove is formed at the other end portion.

  The second support member 423 is formed by processing a part of a substantially rectangular parallelepiped block member into a substantially U shape, and has an upper side portion 423d, a lateral side portion 423e, and a lower side portion 423f. The lateral side portion 423e is disposed to face one end portion of the arm 421. Two screw holes 423c are formed in a substantially central portion of the lateral side portion 423e so as to penetrate in the left-right direction along with the extending direction of the arm 421. The upper part 423d extends from the upper part of the lateral side part 423e to the left side, and a through hole 423a is formed in the substantially central part so as to penetrate in the vertical direction. The lower side portion 423f is extended from the lower side of the lateral side portion 423e to the left side, and a through hole 423b is formed at a substantially central portion thereof so as to penetrate the up and down direction facing the through hole 423a.

  The weed slag 43 is for extruding the uncut grain slag in a direction away from the harvesting unit 3 and the machine body. As shown in FIG. 4, the weed weed 43 includes a front weed 431 and a back weed 432. The weed bark 43 is arranged on the left side of the cutting unit 3 and the machine body and on the left side of the support bar 42 with respect to them. In addition, in this embodiment, the weed cocoon 43 is not limited to what is comprised from the front weed pod 431 and the back weed moth 432, but is comprised only from the front weed pod 431. There may be.

  The front weed fence 431 is a member formed from a pipe-shaped member. The front weed basket 431 is arranged to extend rearward from the vicinity of the weed board 31 through the left side of the support basket 42 mainly on the left lateral outer side of the cutting unit 3. One side end (front end) of the front weed pod 431 is pivotally supported in the vicinity of the weed plate 31 of the cutting unit 3 so as to be horizontally rotatable and rotatable about an axis whose axial direction is the front-rear direction. At the other side end (rear end) of the front weed basket 431, a substantially rectangular plate portion in which a vertical through hole 431a is formed is formed along the extending direction of the front weed basket 431 (FIG. 8). (See (b)).

  The rear branch weed 432 is a member formed from a pipe-shaped member. The rear weed fence 432 is arranged to extend rearward from the other side end of the front weed fence 431. At one side end (front end) of the rear weed basket 432, a substantially rectangular plate material in which a vertical through hole 432a is formed is fixed along the extending direction of the rear weed paddle 432 (FIG. 8 ( b)). A ring-shaped member 432 c is formed on the other side end of the rear weed basket 432. The other side end (rear end) of the rear weed basket 432 is slidably slidable in the front / rear direction via a ring-shaped member 432c to a weed guide 432d extending in the front / rear direction on the left side of the body frame 9. Stopped.

  Below, the assembly method of the weeding device 40 is demonstrated using FIGS. 6-8.

  As shown in FIG. 6, the support plate 411 is attached to the rear side of the pulling vertical transmission pipe 306 with a bolt or the like via a spacer 411 c with the plate surface facing forward. The support arm 412 is attached to the front side of the pulling vertical transmission pipe 306 with a bolt or the like so that the center of the swinging through hole 412a coincides with the center of the swinging through hole 411a of the support plate 411.

  The support plate 411 and the rear side portion of the base plate 413 are arranged in a partially overlapping manner in the front and rear, and the bolt 441 extends from the rear side of the base plate 413 to the flat washer 442, the spacer 443, the swinging through hole 413a, and the swinging plate. After being sequentially inserted into the through hole 411a, the nut 444 as a fastener is screwed. Further, the plate material 412c of the support arm 412 and the front side portion of the base plate 413 are arranged in a partially overlapping manner in the front and rear, and the bolt 441 is formed from the front side of the support arm 412 with a flat washer 442, a spacer 443, and a swinging through hole. After being sequentially inserted into 413c and the swinging through hole 412a, it is screwed into a nut 444 which is a fastener. Thus, the base plate 413 is fastened to the support plate 411 and the support arm 412.

  Here, the outer diameter of the spacer 443 is set smaller than the inner diameters of the swinging through hole 413a and the swinging through hole 413c and larger than the inner diameters of the swinging through hole 411a and the swinging through hole 412a. The axial length of the spacer 443 is set larger than the thickness of the base plate 413. Therefore, since the spacer 443 receives the fastening force of the nut 444 while being arranged between the bolt 441 and the swinging through hole 413a, the fastening force of the nut 444 is not applied to the base plate 413.

  Then, after the bolt 445 is inserted into the adjustment long hole 411b, the through hole 413b, the flat washer 446, the compression spring 447, and the flat washer 446 in this order from the front side of the support plate 411, the bolt 445 is screwed with the nut 448 as a fastener. Combined.

  In such a configuration, the base plate 413 is supported by the support plate 411 and the support arm 412 so as to be swingable about the swing axis, with the bolts 441 as swing axes. Further, the base plate 413 is constantly biased toward the support plate 411 by the compression spring 447. For this reason, the rear side portion of the base plate 413 is brought into pressure contact with the other side plate surface of the support plate 411, and a drag force due to friction is generated. As a result, the base plate 413 can maintain its swing angle and can be arbitrarily adjusted within the longitudinal width of the adjustment long hole 411b by applying an external force that is greater than the drag caused by friction. It has become.

  As shown in FIG. 7, the bearing members 414e of the screw unit 414 and the left side of the base plate 413 are arranged so as to be overlapped on the left and right, and the bolt 449 is formed from the left side of the base plate 413 with a flat washer 450, a through hole 414f, After being inserted through the through holes 413d in order, they are fastened by nuts 451 which are fasteners. Further, the guide rollers 416 of the screw unit 414 roll such that the rollers 416b roll while being guided by the upper guide 413j of the pair of upper and lower guides 413j and 413j fixed to the base plate 413. It is arranged between. The support shaft 416a of the guide roller 416 is inserted into the through hole 413e from the right side of the base plate 413, and fastened with a screw hole 414d formed in the moving nut 414c.

  The motor bracket 413f and the main body of the drive motor 415 are disposed so as to overlap in the front-rear direction, and the bolts 460 (see FIG. 8) are placed on the plain washers 461 (see FIG. 8), the through holes 413g, and the spacers 452, respectively. After being sequentially inserted, it is fastened to the mounting screw hole 415a. The bearing 415f is inserted through the boss member 413h of the motor bracket 413f. The connecting shaft 415c is inserted into the bearing 415f from the rear side of the motor bracket 413f. That is, the connecting shaft 415c is rotatably supported by the motor bracket 413f via the bearing 415f. A gear 415d of the connecting shaft 415c is engaged with a gear 415b fixed to the output shaft of the drive motor 415. The engaging surface 415e of the connecting shaft 415c is engaged with the slit 414b of the screw shaft 414a.

  In such a configuration, the screw unit 414 is fixed to the base plate 413. Further, the drive motor 415 is wired with operating tools provided in the cabin 83 of the control unit 8. Therefore, the drive motor 415 is configured to be operable via the operation tools in the cabin 83. The turning power of the drive motor 415 is transmitted to the screw shaft 414a of the screw unit 414 via the connecting shaft 415c, and the screw shaft 414a can be rotated. Then, when the screw shaft 414a is rotated by the drive motor 415, the moving nut 414c moves, and its position is arbitrarily changed within the movable range on the screw shaft 414a. In the screw unit 414, even if an external force in the vertical direction is applied to the arm 421 or the weed ridge 43 attached to the moving nut 414c, the guide roller 416 is guided by the guide 413j, so the moving nut 414c is rotated around the screw shaft 414a. Will not rotate. In addition, when the moving nut 414c moves in the front-rear direction, the guide roller 416 rolls while being guided by the upper guide 413j of the pair of upper and lower guides 413j and 413j, so the frictional resistance is small and the arm 421 moves stably. Can be made.

  As shown in FIG. 8, the right side portion of the support bracket 422a and the moving nut 414c in the first support member 422 are arranged so as to be overlapped on the left and right, and the bolt 453 is inserted into the plain washer 454 and the through hole 422e from the left side. After being inserted in order, it is screwed into the screw hole 414d of the moving nut 414c. Thus, the support bracket 422a and the moving nut 414c are fastened.

  The other end of the arm 421 is disposed between the upper and lower sides of the support bracket 422a in the first support member 422, and the support shaft 422b penetrates the through hole 422d, the shaft support 421a, and the support bracket 422a of the support bracket 422a. The holes 422c are inserted in order. A stopper ring 455 is attached to the other end of the support shaft 422b. One end of the arm 421 is brought into contact with the right side of the second support member 423, and the bolt 456 is inserted into the flat washer 457 and the through hole 421b in this order from the right side. Screwed into the screw hole 423c. Thus, the other end of the arm 421 is fastened to the first support member 422 and the one end of the arm 421 is fastened to the second support member 423.

  The rear end of the front weed basket 431 and the front end of the rear weed fence 432 are disposed between the upper and lower side portions of the second support member 423, and the bolt 458 is inserted from above through the through hole 423a, 431a, the through hole 432a and the through hole 423b of the rear branch weed 432 are sequentially inserted, and then screwed into a nut 459 as a fastener. At this time, the second support member 423 is disposed behind the first support member 422.

  In such a configuration, the arm 421 is swingably supported by the first support member 422 using the support shaft 422b as a swing shaft. The weed bush 43 is supported by the second support member 423 so that the rear end of the front weed bush 431 and the front end of the rear weed bush 432 are swingable with a bolt 458 as a swing shaft. That is, the support rod 42 is swingably connected at the rear end to the weed rod 43 and the front end is swingably connected to the position adjusting device 41 so that it can move in the front-rear direction and can swing in the front-rear direction. It is said. Then, when the other end of the support rod 42 is moved in the front-rear direction by the position adjusting device 41, the support rod 42 moves in the front-rear direction and swings in the front-rear direction. The collar 43 moves in the left-right direction.

  Below, the mode of position adjustment of the weeding device 40 is demonstrated using FIGS. 9-11.

  As shown in FIG. 9, when the left and right positions of the weed ridge 43 are changed to positions that are separated from the pulling vertical transmission pipe 306, that is, the cutting unit 3 and the body frame 9, the operator of the control unit 8 selects the operation tools. The drive motor 415 is driven by remote operation, and the moving nut 414c is moved from the front side to the rear side of the screw unit 414. Accordingly, the support rod 42 is swung clockwise around the support shaft 422b as indicated by the arrow in FIG. 9 by moving the front end rearward. That is, the rear end of the support rod 42 is moved to a position away from the pulling longitudinal transmission pipe 306 by the position adjusting device 41.

  The front weed bush 431 is moved to a position where the rear end of the support rod 42 is separated from the longitudinal vertical transmission pipe 306, so that one side end (front end) pivotally supported so as to be horizontally rotatable is used as a swing center. It is swung clockwise. That is, the rear end of the front weed fence 431 is moved to a position away from the pulling longitudinal transmission pipe 306 by the position adjusting device 41. In accordance with the movement of the rear end of the front weed cage 431, the rear end weed 431 is moved to a position where one side end (front end) is separated from the vertical transmission pipe 306, and the other end (front end) is separated from the weed. It is moved toward the front side on the heel guide 432d. Accordingly, the left and right positions of the weed ridges 43 supported by the support ridges 42 are at positions that are separated from the pulling longitudinal transmission pipe 306, that is, at positions that are separated from the cutting unit 3 and the body frame 9 (airframe). Be changed.

  As shown in FIG. 10, when the left and right positions of the weed ridge 43 are changed to positions that are close to the pulling longitudinal transmission pipe 306, that is, the cutting unit 3 and the body frame 9, the operator of the control unit 8 selects the operation tools. The drive motor 415 is driven by remote control using this, and the moving nut 414c is moved from the rear side of the screw unit 414 toward the front side. Accordingly, the support rod 42 is swung counterclockwise about the support shaft 422b as indicated by the arrow in FIG. 10 by moving the front end toward the front. That is, the rear end of the support rod 42 is moved by the position adjusting device 41 to a position close to the pulling vertical transmission pipe 306.

  When the rear end of the support rod 42 is moved to a position close to the pulling vertical transmission pipe 306, the one side end (front end) that is pivotally supported in a horizontally rotatable manner is used as the center of oscillation. Swings counterclockwise. That is, the rear end of the front weed ridge 431 is moved by the position adjusting device 41 to a position close to the pulling vertical transmission pipe 306. In accordance with the movement of the rear end of the front weed fence 431, the rear end weed 431 is moved to a position where one side end (front end) is closer to the vertical transmission pipe 306, and the other end (front end) is the weed. It is moved toward the rear side on the heel guide 432d. Therefore, the left and right position of the weed ridge 43 supported by the support ridge 42 is changed to a storage position that is a position close to the pulling vertical transmission pipe 306, that is, a position close to the cutting unit 3 and the body frame 9 (airframe). Is done.

  As described above, the left and right position of the weed ridge 43 can be arbitrarily adjusted by the position adjusting device 41. Specifically, the left and right positions of the weed culvert 43 can be changed to the retracted position during the non-cutting operation, and to the extended position that provides an arbitrary overhanging amount during the cutting operation. At this time, the lateral movement amount of the rear end of the support rod 42 with respect to the longitudinal movement amount of the front end of the support rod 42 is substantially proportional to the 1/2 power of the support rod length L that is the swing radius of the support rod 42. . Therefore, by configuring the support rod length L to be sufficiently large, the lateral movement amount of the rear end of the support rod 42 can be made larger than the longitudinal movement amount of the front end of the support rod 42. Here, since the support rod 42 is installed along the cutting part 3 and the aircraft in the longitudinal direction rather than the left-right direction of the aircraft, even when the support rod length L is sufficiently large, And the installation width | variety of the left-right direction of the support rod 42 can be suppressed. Thereby, it is not necessary to provide the installation space in the left-right inward direction of the machine body frame 9 without increasing the size of the position adjusting device 41, and a sufficient amount of lateral movement of the weed culvert 43 can be ensured.

  As shown in FIG. 11, when adjusting the vertical position of the weed ridge 43, an external force is applied upward or downward to the weed ridge 43 or the support ridge 42. At this time, the base plate 413 is swung with respect to the support plate 411 by applying an external force larger than the drag force generated by the friction generated between the support plate 411 and the base plate 413. Thereby, the swing position of the base plate 413 relative to the support plate 411 can be arbitrarily adjusted within the longitudinal width of the adjustment long hole 411b. For example, the vertical position of the weed culvert 43 can be adjusted to the lowest position by setting the bolt 445 of the base plate 413 to be inserted into the left end portion of the adjustment long hole 411b.

  As described above, the length of the uncut grain cereal is changed by applying an external force upward or downward to the weed slag 43 or the support slag 42 to change the swing position of the base plate 413 to an arbitrary position. If necessary, the vertical position of the weed basket 43 can be arbitrarily adjusted without changing the left and right positions of the weed basket 43. That is, regardless of the vertical position of the weed basket 43, the left and right positions of the weed basket 43 can be changed to arbitrary positions.

  As shown in FIG. 12, in the weeding device 40 configured as described above, the position where the weed culvert 43 is separated from the pulling vertical transmission pipe 306, that is, the overhanging position where it is separated from the cutting unit 3 and the body frame 9. In this case, when the weed ridge 43 comes in contact with an obstacle such as a ridge or a channel wall and is pushed in the right direction where the vertical transmission pipe 306 is raised, the arm 421 of the support rod 42 is elastically deformed. Then, it moves in the right direction (storage position side) where the pulling longitudinal transmission pipe 306 is located. At this time, the arm 421 of the support rod 42 is difficult to bend because a part of the arm 421 comes into contact with the weed rod 43. As a result, the amount of movement of the weed pod 43 is regulated within a predetermined range. Therefore, the side cover 35, the body frame 9, and the like contact the obstacle when the body moves further to the left while a part of the arm 421 is in contact with the weed fence 43. It will serve as a bumper to prevent this from happening. When the weed bark 43 is not pushed away from the obstacle or the like, the weed bark 43 returns to the original left and right position as the arm 421 of the support bar 42 returns to the shape before elastic deformation. Thereby, the weeding device 40 can prevent the weed pod 43 and the position adjusting device 41 from being damaged without providing a separate buffering mechanism and return mechanism.

  As described above, the combine 1 according to the present embodiment is connected to the cutting portion 3 provided at the front portion of the body frame 9 (airframe) and one side end (front end) swingably connected to the lateral outer side of the cutting portion 3. A weeding rod 43 whose other side (rear side) extends rearward of the body frame 9, a supporting rod 42 whose one end (rear end) is swingably connected to the weeding rod 43, and a cutting Is disposed on the cutting unit 3 or the body frame 9 here, and the other end (front end) of the support rod 42 is movable in the front-rear direction of the body frame 9 and swings in the front-rear direction of the body frame 9 And a position adjusting device 41 that is freely supported.

  With this configuration, the position adjustment device 41 can arbitrarily adjust the left-right position of the weed ridge 43 by moving the other end of the support rod 42 in the front-rear direction of the machine body. At this time, by configuring the support rod length L to be sufficiently large, the lateral movement amount of the rear end of the support rod 42 is reduced in the front-rear direction of the front end of the support rod 42 while suppressing the installation width of the support rod 42 in the left-right direction. The amount of movement can be increased. As a result, it is not necessary to increase the size of the position adjusting device 41, and it is not necessary to provide an installation space in the left-right inward direction of the machine body frame 9, and a sufficient amount of lateral movement of the weed culvert 43 can be ensured. Further, the left and right position of the weed rod 43 can be changed by the swinging of the support rod 42 in the left-right direction. As a result, the left and right position of the weed pod 43 can be changed without changing the vertical position of the weed pod 43.

  Further, the position adjusting device 41 is configured such that the other side end of the support rod 42 can be moved to an arbitrary front and rear position by a drive motor 415 that is an actuator.

  By configuring in this way, in addition to the above-described effects, the position adjusting device 41 is simplified, and the operator of the combine 1 can remotely control the position of the support rod 42 by this position adjusting device 41. It can be adjusted easily. As a result, it is not necessary to increase the size of the position adjusting device 41, and it is not necessary to provide an installation space in the left-right inward direction of the machine body frame 9, and the amount of movement in the left-right direction of the weed culvert 43 can be secured.

  Further, the position adjusting device 41 is configured to be rotatable in the vertical direction with an axis parallel to the front-rear direction of the body frame 9 as a rotation center.

  By configuring in this way, in addition to the above-described effects, the vertical position of the weed ridge 43 can be arbitrarily adjusted without changing the left and right position of the weed ridge 43 just by rotating the position adjusting device 41. can do. Therefore, since only the vertical position of the weed cocoon 43 can be changed according to the length (height) of the cereal, it is possible to properly weed.

  The position adjusting device 41 is disposed between the pulling longitudinal transmission pipe 306 of the cutting unit 3 and the side cover 35 of the cutting unit 3.

  By configuring in this way, in addition to the above-described effects, the position adjusting device 41 can be installed at a position close to the swing center of one (front) side end of the weed ridge 43, so It is possible to increase the amount of lateral movement of the weed culvert 43 relative to the amount of movement of 43 in the front-rear direction.

  Next, the structure of the weeding device 40 in the combine which concerns on another embodiment is demonstrated using FIG. 13 and FIG. In the following embodiments, the same points as those of the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted, and different portions will be mainly described.

  The support rod 92 supports the weed rod 43. The support rod 92 mainly includes an arm 921, a first support member 422, and a second support member 423.

  The arm 921 is a member formed by bending a leaf spring once in the middle in the longitudinal direction. As shown in FIG. 13, the arm 921 is disposed on the left side of the moving nut 414 c of the position adjusting device 41 with the protruding side of the bent portion facing the left side. In addition, in this embodiment, the member which comprises an arm is not limited to a leaf | plate spring, What is necessary is just an elastic body which can support the weed ridge 43.

  As shown in FIG. 14, in the weeding device 40 configured as described above, the position where the weed culvert 43 is separated from the pulling longitudinal transmission pipe 306, that is, the overhanging position where it is separated from the cutting unit 3 and the body frame 9. In this case, when the weed ridge 43 comes in contact with an obstacle or the like and is pushed in the right direction where the erected vertical transmission pipe 306 is located, the arm 921 of the support ridge 92 is elastically deformed, thereby causing the erected vertical transmission pipe 306. Move to the right (within the storage position). At this time, the arm 921 of the support rod 92 becomes difficult to bend when the bent portion comes into contact with the weed rod 43. As a result, the amount of movement of the weed pod 43 is regulated within a predetermined range. Therefore, the side cover 35, the body frame 9, etc. contact the obstacle when the body moves further to the left while the bent part of the arm 921 is in contact with the grass holder 43. It will serve as a bumper to prevent this from happening. When the weed bark 43 is not pushed away from the obstacle or the like, the weed bark 43 returns to the original left and right position by returning the arm 921 of the support bar 92 to the shape before elastic deformation. Thereby, the weeding device 40 can prevent the weed pod 43 and the position adjusting device 41 from being damaged without providing a separate buffering mechanism and return mechanism.

DESCRIPTION OF SYMBOLS 1 Combine 3 Cutting part 9 Airframe frame 35 Side cover 41 Position adjusting device 42 Supporting rod 43 Weeding rod 306 Pulling vertical transmission pipe 415 Drive motor

Claims (3)

A cutting part provided at the front part of the machine body, one side end is swingably connected to the lateral outer side of the cutting part, and the other side is extended in the rearward direction of the machine body, and one side end is the above-mentioned A support rod that is swingably connected to the weed rod, and the cutting portion or the machine body, the other end of the support rod is movable in the longitudinal direction of the machine body, and the longitudinal direction of the machine body And a position adjusting device that swingably supports
The position adjusting device is configured such that the other side end of the support rod can be moved to an arbitrary front-rear position by an actuator,
The supporting rod, relative to the actuator side, the second support and the first support member connected with freely state moved in the longitudinal direction of the fuselage, which with respect to the partial grass杆側is swingably connected It is constituted by a member and an arm that connects between both support members,
The arm is composed of an elastic member formed by bending a leaf spring into a bow shape.   The combine according to claim 1, wherein the position adjusting device is configured to be rotatable in an up-down direction with an axis parallel to a front-rear direction of the machine body as a rotation center.   The combine according to claim 1 or 2, wherein the position adjusting device is disposed between the pulling longitudinal transmission pipe of the cutting part and a side cover of the cutting part. .

Images