JP2006345809A - Waste straw binding part of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To place a waste straw binding apparatus demounted from a threshing apparatus on the bed in an optional place with good stability. <P>SOLUTION: A supporting frame 21 long in the longitudinal direction of waste straw culms is demountably mounted on the rear of the threshing apparatus and the waste straw binding apparatus B is loaded and connected to the upper part of the waste straw ear tip side in the supporting frame 21. A stand 25 on the ear tip side is protrusively installed downwardly from the vicinity of the end of the waste straw ear tip side of the supporting frame 21 and a part on the waste straw plant foot side is downwardly bent in the form of a crank from the intermediate site in the longitudinal direction of the supporting frame 21 to form a stand 24 on the plant foot side. A housing case 27 for a wound string 26 is arranged in a caved space e formed in the upper part of the stand 24 on the plant foot side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a combine binding unit configured to bind a discharger that has been carried out from a threshing device in a sideways posture by a predetermined amount by a discharger binding device and to release it outside the machine.

As a waste straw bundling device, a knotter-building knot mechanism and a discharge arm are arranged above the focusing space where the waste straw transported from the threshing device is collected in a sideways posture, and scraped below the focusing space. With a built-in packer and a string supply needle and a focusing pressure sensing door on the exit side of the converging space, and a mechanism with each mechanism placed upside down with respect to the converging space. In the specification where the needle is arranged below the focusing space, the binding string is first supplied to the needle and then guided to the knot mechanism over the focusing space, and the winding string is accommodated and deployed below the binding device. A form is adopted. And, it is known that a storage case for the winding string is provided below the deck that receives the stocker side of the gathered waste straws, and the whole waste straw binding apparatus is configured to be low in bulk (for example, patents) Reference 1).
Japanese Utility Model Publication No. 60-15131

  In the case of performing maintenance of the sorting unit in the threshing apparatus, the waste straw binding apparatus itself, or the maintenance of the waste straw cutter disposed in front of the waste straw binding apparatus, the waste straw binding apparatus is removed. However, since the waste straw binding device is a structure that is horizontally long and relatively high in height, it is desirable that the waste straw binding device can be placed stably in a detached state.

  The present invention has been made paying attention to such points, and has as its main object to allow the waste straw binding device to be lowered at an arbitrary place and stably placed on the floor.

  According to a first aspect of the present invention, a support frame that is long in the length direction of the draining straw is detachably attached to the rear portion of the threshing device, and a draining device binding device is mounted and connected to the upper side of the waste straw tip of the support frame. While projecting the tip side stand downward from near the end of the straw head side, the stock side stand is refracted downward in a crank shape from the longitudinal intermediate portion of the support frame, A winding string storage case is disposed in a recessed space formed above the stocker side stand.

  According to the said structure, by providing a stock-source side stand and a tip side stand on the right and left of a support frame, the removed horizontally long waste straw binding device can be stably placed on the floor. In this case, since the storage case for the winding string is disposed in the recessed space formed above the stockholder-side stand, the entire waste straw binding device including the storage case can be made as low as possible.

  Therefore, according to the first invention, the waste straw binding device can be lowered at an arbitrary place and stably placed on the floor, and can be easily inspected and maintained without wobbling even when an external force is applied.

According to a second invention, in the first invention,
The upper surface of the storage case is configured as a deck that receives the stocker side of the bundled drainer.

  According to the above configuration, the number of parts can be reduced by sharing the top plate and deck of the storage case.

According to a third invention, in the first or second invention,
The tip side stand is formed in a U shape that is wide in the direction of conveying the waste wall when viewed from the side.

  According to the above configuration, the lowered waste binding device can be stably placed on the floor, and when the waste straw binding device is transported alone, the U-shaped tip side stand is simply fixed to the loading platform or the transport pallet. The entire straw binding device can be fixed stably.

According to a fourth invention, in any one of the first to third inventions,
The support frame is composed of a pair of main frame ridges arranged opposite to each other in the waste straw transporting direction, and a pair of side frame ridges arranged opposite to each other in a large direction in the discharge straw cocoon length direction. A part of the side frame rod at the rear of the waste straw transporting direction is refracted downward and connected to the end on the stock side in the stock side stand.

  According to the above configuration, the refracted side frame on the stock market side has high strength, and the rigidity of the entire support frame can be increased without using a reinforcing stay or the like.

  FIG. 1 shows a side surface of the waste straw processing unit at the rear part of the self-detaching combine, FIG. 2 shows its side surface, and FIG. 3 shows its back surface. A disc-shaped waste straw cutter C is connected to the rear end of the threshing device 1 mounted on the rear part of the machine body, and a waste straw binding device B is arranged behind the waste straw cutter C, with the rear fulcrum a as the center. By lowering the flow path switching plate 2 arranged so as to be able to swing up and down and closing the upper entrance of the draining cutter C, the side-falling posture discharged from the threshing apparatus 1 and transported by the draining straw transporting apparatus 3 is discharged. Supplying the straw to the waste straw binding device B, and raising the flow path switching plate 2 to open the upper entrance of the waste straw cutter C, the waste straw that has been conveyed can be shredded and released downward. It can be done.

  The waste straw binding device B collects and bundles a predetermined amount of waste straw supplied in a sideways posture, and discharges the formed straw bundle to the rear of the fuselage. A converging space S is formed at the upper and lower intermediate portions of the transmission case 4. In addition, on the stocker side of the waste straw binding device B, a stock stocking device D is arranged that strikes and aligns the stock ends of the waste straws that are carried in by a stocking plate 5 that swings left and right.

  In the lower part of the transmission case 4 on the lower side of the converging space S, a crank-type scraper packer 6 for feeding the conveyed waste straw toward the converging space S, a needle 7 for supplying a binding string, and a converging space S A sensing door 8 for detecting the collected pressure of the collected waste straw is provided, and the upper part of the transmission case 4 on the upper side of the convergence space S is driven into the working area of the packer 6. Are equipped with a crank-type feed packer 9 for feeding into the door, a string guide plate 12 constituting the upper wall of the converging space S, a knot mechanism 10 of a knotter-bille type, and a crank-type discharge mechanism 11. The feeding packer 9 and the scraping packer 6 are always driven, and the lower needle 7, the upper knot mechanism 10 and the discharge mechanism 11 are intermittently driven in synchronization based on the focus pressure sensing. ing.

  The basic bundling operation of the waste straw bundling apparatus B will be described below. In other words, the waste straw that has been conveyed is first fed backward by the feeding packer 9, and subsequently fed into the converging space S under the scraping action of the scraping packer 6. While the focusing pressure acting on the sensing door 8 is less than the set value, the one-turn clutch (not shown) inside the case is disengaged, and the needle 7 stops at the standby position retracted below the focusing space S. Yes. Further, the knot mechanism 10 and the discharge mechanism 11 that are synchronized with the needle 7 are also stopped in a standby state.

  When a predetermined amount of waste straw is converged in the converging space S, the sensing door 8 is moved backward by receiving a converging pressure equal to or higher than a set value generated by the scrambling operation of the scrambling packer 6, thereby causing a one-rotation clutch. Becomes ready to start. Then, in synchronization with the next scraping operation of the scraping packer 6 (final scratching operation), the one-rotation clutch is engaged and actuated at a predetermined timing to start driving the needle 7 and drive the knot mechanism 10. Force transmission is started.

  When the scraper packer 6 performs the final scraping operation, the needle 7 moves the drainer carry-in path from the bottom up through the space where the scraper 6 is pushed back and forth by the scraper packer 6 traversing the drainer transport path. The crossing moves, passes through the string guide plate 12 arranged below the knot mechanism 10, and winds the knot string with the tip held by the string holder 10 b of the knot mechanism 10 around the drainer of the converging space S from the front. The nodule mechanism 10 is supplied. The knot mechanism 10 operates in synchronism with the string supply operation by the needle 7, and knot operations such as knotting the string by the knot building 10a, cutting the supply string by the string holder 10b, and holding the cut end are sequentially performed. .

  Thereafter, the discharge arm 13 of the discharge mechanism 11 that operates in synchronism with the knot mechanism 10 pushes and moves the binding brace backward, and accordingly, the binding string is pulled out of the knot building 10a to form a knot, and the subsequent discharge arm 13 continues. As a result of the backward movement, the bundle of straws is released backward from the converging space S. At this time, the sensing door 8 is retracted downward to open the rear outlet of the converging space S.

  When the knotting mechanism 10 completes the knotting operation and the new cut end of the bundling string is held by the string holder 10b, the needle 7 moves backward, and when the needle 7 returns to the standby position below the focusing space S. The one-speed clutch is automatically disengaged, the drive of the needle 7, the drive of the knot mechanism 10, and the drive of the discharge mechanism 11 are stopped, and the original detection position where the detection door 8 closes the rear end of the focusing space S As a result, the bundling operation is completed once, and the subsequent exhaust straw continues to be focused.

  In addition, below the converging space S, an exhaust wall support member 15 made of a round bar is disposed and fixed close to the lateral side of the movement locus of the needle 7 so as to receive the supplied exhaust wall from below. ing. The exhaust wall support member 15 extends from the rear outlet of the converging space S to the front beyond the front inlet, and corresponds to the start end of the converging space of the exhaust wall support member 15 and passes through the needle 7. The stepped portion 15a is bent and formed immediately after the locus.

  According to this configuration, the intermediate portion in the lengthwise direction of the waste straw supplied to the inlet portion of the waste straw binding device B is received and supported by the waste straw support member 15 from below, and then subjected to the scraping action of the scraping packer 6. The converging space S is pushed and supplied to the converging space S. The converging space S is pushed into the converging space S by the scraping packer 6 because the vertical width of the converging space S is increased by the dropping step portion 15a of the discharge wall support member 15. The supplied waste straw falls at the drop step portion 15a, and the backward flow forward (to the entrance to the converging space S) is prevented by the drop step portion 15a.

  The needle 7 is provided with a return spring 16 that returns and rotates toward the standby position, and the needle 7 that has returned to the standby position and released from driving is rotated upward in response to the return operation. Is suppressed. Further, at the front portion of the drop stepped portion 15a in the exhaust wall support member 15, that is, at the portion intersecting with the needle 7, a protruding piece 15b inclined upward and back so as to continue to the drop stepped portion 15a is provided in a rib shape. Thus, even if the needle 7 overcomes the return spring 16 by the return reaction and is displaced upward, the needle tip is prevented from jumping out into the drain wall and being caught by the drain wall.

  The waste straw binding apparatus B configured as described above is detachably connected to and supported by the threshing apparatus 1 for maintenance of the threshing apparatus 1, the waste straw cutter C, or the waste straw binding apparatus B itself. Next, the structure related to the detachment structure of the waste straw binding apparatus B will be described.

  As shown in FIG. 3, the waste straw binding device B is mounted and supported on the right side (the waste straw tip side) on the support frame 21 that is long on the left and right, and extends forward from the right end of the support frame 21. The front end of the connecting arm 22 is detachably connected to the rear portion of the threshing device 1 and the connecting portion 23 provided at the left end of the support frame 21 is detachably connected to the exhaust wall cutter C.

  As shown in FIG. 10, the support frame 21 includes a pair of main frame rods 21a and 21b arranged opposite to each other at an interval in the front-rear direction, and a pair of left and right side frame rods 21c arranged opposite to each other with a large interval in the drain wall length direction. , 21d. The front main frame rod 21a is made of a square pipe material, the right side frame rod 21d is made of a channel material, and the rear main frame rod 21b and the left side frame rod 21c are made of a round pipe material. Has been.

  The stocker side stand 24 is formed by bending the side portion of the waste straw stock in the rear main frame rod 21b downward in a crank shape. In addition, a part of the rear side of the left side (stock side) side frame ridge 21c is refracted downward and connected to the left end of the stock side stand 24, and the bottom end of the stock side stand 24 is seen in plan view. It is designed to ground in an L shape. Further, a tip side stand 25 formed by bending a round pipe material into a wide U shape in the front-rear direction is connected downward from the side frame tip 21d on the right side (tip side). As described above, the stocker side stand 24 and the tip side stand 25 are provided on the left and right sides of the support frame 21, so that the removed waste straw binding device B can be stably placed on the ground.

  A concave space e is formed above the stock-side stand 53 formed by bending the rear main frame rod 21b, and a storage case 27 for accommodating the cylindrical winding string 26 is disposed in the concave space e. Thus, the support frame 21 is connected and fixed. The storage case 27 is configured in a box shape that is opened rearward so that the winding string 26 can be inserted and removed from the rear in a front-rear posture, and a swinging rear cover 28 that opens and closes the opening has a string feeding hole. 29, and a string brake 30 acting on the binding string led out from the string feeding hole 29 is provided.

  The upper surface of the storage case 27 is constituted by a deck 31 that receives the stocker side of the collected waste straws, and the aligning plate 5 of the stock aligning device D is arranged so as to reciprocate left and right on the deck 31. Has been. In addition, the deck 31 is inclined and arranged so as to be lowered rearward, so that backward movement of waste straw and straw scraps on the deck 31 is smoothly performed.

  Next, the stock sorting apparatus D will be described.

  As shown in FIGS. 3 and 4, the deck 31 is provided so as to protrude from the main part of the storage case 27 to the stock base side and the rear side, and an opening 32 is formed at a front portion of the projecting portion to the stock base side. ing. A support shaft 33 that vertically passes through the deck 31 is provided in the opening 32, and the resin-made alignment plate 5 is attached to and detached from a support arm 34 that is cantilevered from the upper end of the support shaft 33. A drive mechanism 35 that is freely bolted and that reciprocally rotates the support shaft 33 at a predetermined angle is provided below the deck 31.

  A side plate 36 provided with the connecting portion 23 is erected and fixed to the left end portion of the support frame 21, and a transmission shaft 37 for transmitting power to the drainer binding device B and a stockshaft drive shaft 38 on the side plate 36. However, each of them is supported by penetrating the shaft center sideways. The transmission shaft 37 is a hexagonal shaft, and a boss member 39 that receives power for driving the bundling device is supported on the outer end of the transmission shaft 37 so as to freely rotate. The boss member 39 and the transmission shaft 37 are arbitrarily connected. It is interlocked and connected via a clutch 40 that can be turned on and off.

  The clutch 40 is equipped with a clutch boss 41 with claws that is externally fitted to the transmission shaft 37 so as not to rotate relative to the transmission shaft and is slidable in the axial direction, and a spring 42 that biases and engages the end face of the boss member 39. By disengaging the clutch 40 and freeing the transmission shaft 37, the waste straw binding device B can be rotated manually, which is used for removing clogging, cleaning, and maintenance.

  The boss member 39 is loosely fitted with an input sprocket 44 that is linked to the drive portion of the exhaust wall cutter C via a chain 43. Between the boss portion 44 a of the input sprocket 44 and the boss member 39, A torque limiter 45 that limits the transmission torque to the transmission shaft 37 is provided.

  As shown in FIGS. 8 and 9, the torque limiter 45 is a shear pin type and has a specification that blocks transmission of excessive torque, and is provided on the outer end surface of the boss member 39 and the outer end surface of the boss portion 44a. Locking grooves 46 and 47 are formed in the radial direction, and a safety pin 48 is engaged over the locking grooves 46 and 47 and held by a pin detachment prevention member 49, so that it is transmitted to the input sprocket 44. The motive power is transmitted to the boss member 39 and the transmission shaft 37 via the safety pin 48. In this way, by performing the transmission via the torque limiter 45, when a load higher than the setting is applied to the drainer binding device B, the safety pin 48 is sheared at the fitting portion between the boss member 39 and the boss portion 44a and the power is increased. Transmission is interrupted, and the waste straw binding device B is prevented from being damaged by overload.

  The pin detachment prevention member 49 is connected to the outer end surface of the boss member 39 by a single bolt 50, and a plurality (five in this example) of locking holes formed in the pin detachment prevention member 49 in a line. The safety pin 48 is prevented from coming off from the locking grooves 46 and 47 by locking a support portion 48a bent at one end of the safety pin 48.

  FIG. 9A shows a state in which a new safety pin 48 is loaded, and the support portion 48 a is supported by a locking hole 60 farthest from the bolt 50. When the safety pin 48 is cut due to overload in this state, the pin detachment preventing member 49 is removed, and the support portion 48a of the shortened safety pin 48 is supported in the locking hole 60 on the side close to the bolt 50. In this case, the posture around the bolt 50 of the pin detachment preventing member 49 is adjusted so that the locking hole 60 that locks the support portion 48a is on the extended line of the locking grooves 46 and 47. As shown in FIG. 9B, the safety pin 48 can be used repeatedly until it is shortened, as shown in FIG. The power can be shut down five times.

  As shown in FIG. 5, the drive shaft 38 of the stock sorting apparatus D is interlocked with the transmission shaft 37 through gears 51 and 52, and a rotation cam 53 is provided at the right end of the drive shaft 38. The rotating cam 53 is configured in a lateral drum shape, and an edge toward the stock market side is formed on an inclined cam surface k. On the other hand, the support shaft 33 positioned below the deck 31 is provided with a cam follower arm 55 having a roller 54 at the free end, and the roller 54 is disposed to face the inclined cam surface k of the rotating cam 53. Further, a spring 57 is stretched between the spring receiving arm 56 projecting from the support shaft 33 and the rear end of the side plate 36, and the support shaft 33 is urged to rotate in the stock end tapping direction by the tension of the spring 57. At the same time, the roller 54 of the cam follower arm 55 follows the inclined cam surface k of the rotating cam 53.

  As shown in FIG. 7, the inclined cam surface k is provided with an upwardly inclined portion ka that is loose with respect to the relative movement direction of the roller 54 and a downwardly inclined portion kb that is tighter than the upwardly inclined portion ka. By moving along, the aligning plate 5 is swung back and forth at low speed, and the roller 55 moves fast along the descending inclined portion kb so that a quick stock tapping action by a spring force is performed.

  [Another Example]

  (1) In the above embodiment, the stock frame side stand 53 is formed by forming the main frame rod 21b on the rear side of the support frame 21 with one round pipe member bent in a crank shape. The stockholder-side stand 53 can also be formed by connecting the heel member to a state of being bent in a crank shape.

  (2) The tip side stand 25 can also be configured as a vertical wall having a sheet metal structure.

Side view of combine rear Side view of waste wall binding device Rear view of waste wall binding device Top view of the bottom aligner Cross-sectional plan view of the alignment plate drive mechanism Side view of the alignment plate drive mechanism The perspective view which shows the principal part of the alignment plate drive mechanism Exploded perspective view showing a torque limiter of the exhaust wall binding device drive system Torque limiter vertical side view Perspective view of a support frame for mounting a bundling device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Threshing apparatus 21 Support frame 21a Main frame rod 21b Main frame rod 21c Side frame rod 21d Side frame rod 24 Stock side stand 25 Tip side stand 26 Winding string 27 Storage case 31 Deck e Recessed space B Waste wall binding device

Claims (4)

  At the rear of the threshing device, a support frame that is long in the length direction of the draining straw is detachably attached. Protruding the tip side stand downward from near, and forming the stock side stand by bending the waste straw stock side portion downward in a crank shape from the longitudinal intermediate portion of the support frame, An exhaust wall binding unit for a combine, wherein a winding string storage case is disposed in a recessed space formed above.   The combiner's waste wall binding portion according to claim 1, wherein the upper surface of the storage case is configured as a deck that receives the stocker side of the binding wastewater.   3. The waste straw bundling portion for a combine according to claim 1 or 2, wherein the tip side stand is formed in a U shape that is wide in a waste straw conveying direction in a side view.   The support frame is composed of a pair of main frame ridges arranged opposite to each other in the waste straw transporting direction, and a pair of side frame ridges arranged opposite to each other in a large direction in the discharge straw cocoon length direction. 4. The part of the rear side in the discharge direction of the waste wall in the side frame rod is refracted downward and connected to the end of the stock side on the stock side stand. Combined waste straw binding unit.

Images