JP2015186447A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent waste straws from stacking in a lower space of an entrance plate in a structure allowing a reaping transportation unit and a threshing unit to be assembled favorably.SOLUTION: A combine harvester includes an entrance plate 15 which guides reaped grain culm reaped and transported rearward by the reaping transportation unit to a grain culm feeding port 24 formed at a front side face of a threshing unit 4, a guide plate 45 which guides waste straws dropped from a transfer position between the reaping transportation unit and the entrance plate 15 to the outside rather than the lower space of the entrance plate 15, and a gap filling member 71 formed of a soft material and arranged between the guide plate 45 and the entrance plate 15.

Description

  The present invention relates to a combine that includes a harvesting conveyance unit that harvests a planted cereal meal and conveys the harvested cereal meal rearward, and a threshing unit that threshs the harvested grain meal.

  In the conventional combine, an inlet plate that guides the harvested cereal meal is provided in the cereal supply port formed on the front side surface of the threshing part, and the delivery point from the harvesting conveying part to the inlet plate is covered from above. A sheet-shaped receiving member was provided, and the harvested cereal meal was smoothly supplied to the threshing apparatus. In this way, at the place of delivery from the cutting and conveying unit to the inlet plate, the cutting cereal grains are guided by the sheet-like receiving member so that the straw scraps and the like do not fall below the inlet plate. In particular, no dust-proof member was provided (see, for example, Patent Document 1).

JP 2011-244785 A

  However, along with the cutting work, dust such as fine straw scraps may leak to the lower side of the inlet plate through the gap between the cutting transporting part and the threshing device. Debris may accumulate on a flat surface portion in the space below the inlet plate. In this type of combine, an oil tank or the like may be provided by effectively using the space below the inlet plate. With such a configuration, there is a large possibility that straw scraps accumulate on the upper surface of a flat and large area oil tank.

  Thus, when straw scraps accumulate on the flat surface portion in the lower space of the inlet plate, the accumulated straw scraps are blown by the wind and scattered to other parts of the aircraft, for example, the boarding operation part or the belt type transmission mechanism. There was a risk of adverse effects.

  In order to avoid such disadvantages, it is conceivable to have a configuration for preventing the accumulation of straw scraps on the lower side of the inlet plate. However, since the lower side of such an inlet plate is covered at the upper side by the conveyance termination part of the cutting and conveying part and the inlet plate, when a member for preventing debris accumulation is attached to the lower part of the inlet plate Therefore, it is necessary to assemble the threshing portion in advance before assembling. Then, after attaching a member for preventing debris accumulation to the lower part of the inlet plate, when the threshing portion is assembled, the member for preventing debris accumulation and the inlet plate provided in the threshing portion interfere with each other and are damaged. There is a risk.

  Therefore, it has been desired to prevent the accumulation of straw scraps in the lower space of the inlet plate while being able to satisfactorily perform the work of assembling the harvesting conveyance unit and the threshing unit.

The characteristic configuration of the combine according to the present invention is as follows:
Reaping the planted cereal cocoon and transporting the reaped cereal cocoon backward,
A threshing section for threshing the harvested cereal meal;
An entrance plate for guiding the harvested cereals conveyed by the reaping and conveying unit to the cereal supply port formed on the front side surface of the threshing unit;
A guide plate that guides the waste scraps that have fallen from the delivery location of the cutting and conveying unit and the inlet plate toward the outer side of the lower space of the inlet plate;
A gap filling member made of a soft material is provided between the guide plate and the inlet plate.

  According to the present invention, the guide plate is provided on the lower side of the inlet plate, and the guide plate causes the straw scraps that have fallen from the delivery point between the cutting conveyance unit and the inlet plate to be located outward from the lower space of the inlet plate. Since it guides toward, it can avoid that a waste waste accumulates in the downward space of an entrance plate.

  Before the guide plate is covered with a wide plate-like structure in which the cereal conveyance path is formed by the conveyance termination portion of the harvesting conveyance unit and the inlet plate, that is, the harvesting conveyance unit and the threshing By assembling in advance to the machine body prior to the assembling work of at least one of the parts, the assembling work can be performed satisfactorily without interfering with the assembling work of the cutting and conveying part and the threshing part.

  And, in the assembled state, by bringing the inlet plate and the guide plate in the threshing portion as close as possible, as much as possible of the waste waste that leaks, can be guided toward the outer side than the lower space of the inlet plate it can. Thus, if it arrange | positions in the state which reduces the clearance gap between an entrance plate and a guide plate, after a guide plate is assembled | attached previously, when a threshing part which is a large sized apparatus is assembled | attached, there exists a possibility that they may interfere.

  Therefore, by providing a gap filling member made of a soft material between the guide plate and the entrance plate, even when the entrance plate and the guide plate are arranged in a state as close as possible, at the time of the assembly work as described above, By simply contacting the gap filling member, the inlet plate can avoid damage due to contact between the inlet plate of the threshing portion and the guide plate assembled in advance.

  Accordingly, it has become possible to provide a combine that can prevent the accumulation of straw scraps in the lower space of the inlet plate while being able to satisfactorily perform the assembling work of the cutting and conveying unit and the threshing unit.

In the present invention, the guide plate is located on the front side of the fuselage in the lower space of the inlet plate and guides the waste scrap to the front side outward, and the lateral width of the fuselage in the lower space of the inlet plate A lateral guide plate that is located on one side of the direction and guides the waste from the lateral side outward,
It is preferable that the gap filling member fills gaps between the front guide plate and the lateral guide plate and the inlet plate.

  According to this configuration, the waste waste that has fallen to the front part of the machine body in the space below the inlet plate is guided outward by the front guide plate part of the guide plate and discharged outside the machine. Further, the straw scraps that have dropped to one side of the machine body in the lateral width direction in the space below the inlet plate are guided laterally outward by the lateral guide plate portion of the guide plate and discharged outside the machine.

  Therefore, straw scraps falling below the inlet plate can be discharged over a wide range of the outer front side and the lateral outer side, and it is even better prevented from depositing straw scraps in the lower space of the inlet plate. It will be easy.

In the present invention, an oil tank is provided below the inlet plate,
The front side portion of the upper surface of the oil tank is provided in a forward-declining inclination posture,
It is preferable that the front guide plate is provided in a downwardly inclined posture in a state of being connected to the front portion of the upper surface.

  According to this structure, the front part side part of the upper surface of the oil tank provided under the inlet plate is formed in the front downward inclination posture. And the front side guide plate part of the front downward inclination attitude | position of a guide plate is provided in the state connected with the front part side part of the upper surface in an oil tank.

  In other words, the front side portion of the upper surface and the front side guide plate portion of the guide plate form a guide surface that is connected in a series of forward and downward inclined postures, and falling straw scraps are moved outward on the front side by this guide surface. It is guided and discharged out of the machine.

  Accordingly, by deploying the oil tank by effectively utilizing the space below the inlet plate, that is, the space on the front side of the machine body of the threshing unit, for example, when a large oil tank is deployed on the rear side of the threshing device, etc. Compared to the above, it is possible to make the entire body compact. In addition, by rationally forming the shape of the upper surface of the oil tank, the upper surface of the oil tank can be used as a part of the guide plate, and the configuration of the guide plate can be simplified.

In the present invention, an oil tank is provided below the inlet plate,
An oil filler opening is formed on the upper surface of the oil tank,
In the guide plate, a notch for forming a refueling opening is formed at a location on the front side of the oil supply port or a location on the lateral outer side of the oil supply port and adjacent to the gap filling member. It is preferable that a lid that can be switched between a state where the notch is opened and a state where the notch is closed is provided.

  According to this configuration, in a normal working state, the lid provided at the front side portion of the fuel filler port or the laterally outer side portion of the filler port is switched to the closed state, thereby functioning as a guide plate. It is possible to discharge and guide the falling straw waste well.

  When hydraulic oil is supplied to the oil tank before starting work or when the work is interrupted, the lid is opened and the notch is opened. From the side or from the lateral side of the machine body, the refueling operation can be performed satisfactorily.

  Moreover, the notch is formed at a location adjacent to the gap filling member, and when the threshing portion is assembled, there is no possibility of interference with the inlet plate by switching the lid to the open state. . That is, it is not necessary to provide a gap filling member at a location where this notch is formed, and the configuration can be simplified accordingly.

In the present invention, an oil tank is provided below the inlet plate,
An oil filler opening is formed on the upper surface of the oil tank,
In the gap filling member, a notch that forms an opening portion for oil supply is formed at a location on the front side of the oil supply port or on a laterally outward side of the oil supply port, and the notch is opened and closed. It is preferable that a switchable lid is provided.

  According to this configuration, in a normal working state, the guide plate is provided by the gap filling member by switching the lid provided at the front side portion of the fuel filler port or the laterally outer side portion of the fuel filler port to the closed state. The gap between the inlet plate and the inlet plate can be filled, and falling straw scraps can be discharged and guided well.

  When hydraulic oil is supplied to the oil tank before starting work or when the work is interrupted, the lid is opened and the notch is opened. From the side or from the lateral side of the machine body, the refueling operation can be performed satisfactorily.

In the present invention, on the one side of the oil tank in the lateral direction of the machine body, a cutting transmission device that shifts the power transmitted to the cutting conveyance unit is provided.
It is preferable that the lateral guide plate portion of the guide body is provided in a laterally outwardly inclined posture so as to guide the waste scrap toward the laterally outward direction of the cutting transmission.

  According to this configuration, the side guide plate portion of the guide body can guide and efficiently discharge the waste scraps that have leaked from the inlet plate toward the lateral outer side of the cutting transmission. It is possible to prevent the gearbox from getting down and accumulating.

It is a whole side view of a combine. It is a side view of a combine front part. It is a top view which shows the position change state of a cutting conveyance part. It is a front view of a guide plate arrangement | positioning part. It is a top view of a guide plate arrangement | positioning part. It is a side view of a guide plate arrangement | positioning part. It is a perspective view of a guide plate mounting part. It is a partially notched front view which shows the support structure with respect to the airframe of a cutting conveyance part. It is a transmission system diagram. It is a side view which shows the transmission structure with respect to a cutting conveyance part. It is a top view which shows the transmission structure with respect to a cutting conveyance part. It is a side view of a drive side transmission pulley. It is the XIII-XIII sectional view taken on the line of FIG. It is a vertical front view of the right end part of a horizontal cylindrical frame.

  Hereinafter, embodiments of a combine according to the present invention will be described with reference to the drawings.

〔overall structure〕
As shown in FIGS. 1 and 2, the combine is connected to a front part of a traveling machine body 2 including a pair of left and right crawler traveling devices 1, and a cutting and conveying unit 3 is connected to the front part of the traveling machine body 2 so as to be movable up and down around the horizontal axis X. A threshing device 4 serving as a threshing unit and a grain tank 5 for storing the grain are provided in the rear side of the machine in the state of being aligned in the machine width direction. Further, a boarding operation unit 6 covered with a cabin is provided at the right side of the front portion of the traveling machine body 2, and a driving engine 7 is provided below the boarding operation unit 6. In this embodiment, when the right and left sides in the body width direction are defined, the right side or the left side is defined with reference to the front view of the body.

  As shown in FIGS. 2 and 3, the cutting and conveying unit 3 includes six raising devices 8 that cause the planted cereals to fall down, and a clipper-type reaping device 9 that cuts the established roots of the planted cereals. A conveyor 11 or the like that conveys toward the start end of the threshing feed chain 10 of the threshing device 4 located on the rear side of the machine body while gradually changing the posture of the harvested cereal rice cake in which the stock has been cut to the laterally falling posture. It is configured with.

  The entire cutting and conveying unit 3 is supported by a longitudinally facing cylindrical frame 12 extending in the front-rear direction, and the lifting operation is performed around the horizontal axis X through the longitudinally-oriented cylindrical frame 12. It is freely supported by the traveling machine body 2. Further, the cutting and conveying section 3 moves toward the cutting operation position as shown in FIG. 3 (a) and the front side of the machine as shown in FIG. 3 (b) to open the front part of the machine. Over the maintenance position, the traveling machine body 2 is supported so as to be swingable around the vertical axis Y.

  As shown in FIG. 1, the threshing device 4 is formed on the side surface of the front part of the machine body while receiving and guiding the harvested cereal rice harvested by the reaping device 9 and conveyed by the conveying device 11. The cereal supply port 24 (see FIGS. 7 and 8) accepts the inside. Then, while holding and transferring the cereal stock by the threshing feed chain 10, the tip side is threshed by the handling cylinder 13, and the grain sorting process for the threshing processed product is executed by the sorting unit 14 provided below the grain side. And it is comprised so that the obtained grain may be discharged | emitted in the grain tank 5. FIG. Although not described in detail, a grain discharging device 16 for discharging the grains stored in the grain tank 5 to the outside is provided.

  An auxiliary conveyance device 17 that supplies and conveys the harvested cereal mash from the conveying terminal end of the cultivating and conveying section 3 toward the threshing feed chain 10 is provided at the delivery position of the chopped cereal to the threshing feed chain 10 from the harvested and transported section 3. ing.

  Although not shown in the figure, the prime mover provided with the engine 7 is provided with a radiator for cooling the engine, a cooling fan, and the like. After cooling the engine 7 by sucking outside air from the outside right side of the machine body, the exhaust air is discharged. It discharges toward the body side.

[Support structure of cutting and conveying section]
The support structure of the cutting and conveying unit 3 will be described.
As shown in FIGS. 2, 3, and 8, the rear end portion of the front and rear cylindrical frame 12 is integrally connected and fixed to a horizontal cylindrical frame 18 in a horizontal posture. Is supported by a pair of left and right receiving holders 19 and 20 that are rotatably supported around the horizontal axis X. Therefore, the cutting and conveying unit 3 is supported by the traveling machine body 2 so as to be rotatable around the horizontal axis X.

  As shown in FIGS. 1 and 2, a hydraulic cylinder 22 is pivotally connected across the middle part of the front-rear facing cylindrical frame 12 and the front end part of the body frame 21, and by operating the hydraulic cylinder 22 to extend and contract, The cutting and conveying unit 3 is configured to be movable up and down around the horizontal axis X.

  As shown in FIGS. 2, 3, and 6, an oil tank 23 for storing hydraulic oil is provided in a state of being located below the inlet plate 15 and below the sideways cylindrical frame 18. The oil tank 23 is composed of a highly rigid structure.

  As shown in FIGS. 4 to 8, the oil tank 23 is formed by bending left and right side surfaces 23 a and 23 b made of thick plate materials, an upper surface 23 c having a mountain shape in side view made of thick plate materials, and a series of plate materials. It consists of a front surface 23d, a rear surface 23e, and a bottom surface 23f, which are integrally connected to form a hydraulic oil storage space. The left side surface 23a of the left and right side surfaces 23a, 23b is formed to extend so as to protrude rearward and upward from the upper surface 23c and the rear surface 23e. The right side surface 23b is provided in a state of being located below the upper surface 23c, and the upper surface 23c is extended and formed in a state of projecting outward from the right side surface 23b to the right side. Since the upper surface 23c is formed in a mountain shape when viewed from the side, the front side of the top 23c1, that is, the front side portion 23c2 of the upper surface 23c of the oil tank 23 is provided in a downwardly inclined posture.

  The oil tank 23 is rotated around the vertical axis Y while being connected to the left side surface 23a integrally with the left side surface 23a on the outer side of the left side surface 23a. A rotation support portion 29 that is movably supported is provided.

  The rotation support portion 29 is formed in a substantially box shape in which only the rear side of the machine body is opened using the left side surface 23 a of the oil tank 23. That is, one end of a plate body 30 bent in an L shape in plan view is fixed integrally to the left outer surface of the left side surface 23a to form a substantially U-shaped space in plan view, and the space The top plate 31 that forms the ceiling surface is fixed to form a substantially box-shaped storage space in which only the rear side of the machine body is opened. The bottom surface of the storage space is formed by the body frame 21.

  The oil tank 23 is attached and fixed to the body frame 21 by bolting a plurality of locations. That is, as shown in FIG. 8, horizontal plate portions 23 a 1 and 23 b 1 are formed at the lower end portions of the left and right side surfaces 23 a and 23 b by bending the plate material substantially at right angles, and these horizontal plane portions 23 a 1 and 23 b 1 are formed on the body frame 21 in the vertical direction. Are fastened with bolts along.

  Further, as shown in FIG. 8, a bottom frame body 21B that forms the bottom surface of the storage space is provided at a position corresponding to the lower side of the rotation support portion 29 in the body frame 21, and is fixedly erected on the bottom frame body 21B. The front surface portion 29a and the left side surface portion 29b of the rotation support portion 29 are fastened and fixed to the fixed bracket 34 by bolts 35 along the front-rear direction and the left-right direction.

  In addition, a cylindrical support shaft 36 for rotatably supporting the cutting and conveying unit 3 about the vertical axis Y is supported by the rotation support unit 29 so as to be rotatable about the vertical axis Y. The rotary support 29 is housed inside. The top plate 31 of the rotation support portion 29 is provided with a rotation cylinder portion 37 for rotatably supporting the support shaft 36, and the upper portion of the support shaft 36 inserted through the rotation cylinder portion 37. The pivot base 38 is integrally connected and fixed.

  The support shaft 36 having the rotation base portion 38 at the upper portion is supported by the rotation cylinder portion 37 so as to be rotatable around the vertical axis Y, and a small diameter step portion 39 at the lower end portion. Is received and supported in a freely rotatable manner by an insertion hole 40 formed in the bottom frame body 21B. Thus, when it switches to a maintenance position, it is comprised in the rotation support part 29 so that the load of the cutting conveyance part 3 can be received and supported.

  A left holding holder 19 for supporting the horizontal tubular frame 18 is attached to the upper part of the rotating base 38. The left-hand receiving holding portion 19 includes a fixed-side receiving member 41 fixed to the rotation base portion 38, a closed state that overlaps the fixed-side receiving member 41, and an open state that opens outward. And a rotation-side pressing member 42 supported so as to be swingable and openable. Then, the horizontally oriented tubular frame 18 is positioned between the fixed side receiving member 41 and the rotating side pressing member 42, the rotating side pressing member 42 is switched to the closed state and fixed with the bolts 43, thereby the horizontally extending cylinder. The frame 18 is sandwiched and held in a state where it can rotate integrally with the support shaft 36 around the horizontal axis X.

  Further, as shown in FIG. 8, the right-side receiving and holding portion 20 for receiving and holding the horizontal tubular frame 18 rotatably is attached to and supported by an upper portion of the oil tank 23 via a bracket 44. Yes. The right-side receiving and holding portion 20 is composed of a fixed-side receiving member 41 and a rotation-side pressing member 42 as in the case of the left-side receiving and holding portion 19, and the horizontal tubular frame 18 is moved around the horizontal axis X. Is held in a state in which it can be rotated.

  Since the cutting and conveying unit 3 is supported by such a support structure, the connection between the hydraulic cylinder 22 and the front and rear facing cylindrical frame 12 is released from the operating position for the cutting operation shown in FIG. The rotary holding member 42 of the right receiving holder 20 of the pair of receiving holders 19 and 20 is switched to the open state, and the cutting and conveying unit 3 swings around the vertical axis Y on the support shaft 36. If it does, it can switch to the maintenance position shown in FIG.3 (b). However, at this time, it is necessary to remove a power transmission belt 107 to be described later.

  An oil supply port 25 is formed at a position on the upper surface 23c of the oil tank 23 on the rear side of the top 23c1 and closer to the left side of the machine body. As shown in FIG. 6, a cylindrical portion 26 that communicates with the inside of the tank in a state of protruding largely upward from the upper surface 23 c is provided, and an oil supply port 25 is formed at the upper end portion of the cylindrical portion 26. The oil supply port 25 is closed by a cap 27 that is detachably attached except during the oil supply operation.

〔Guide plate〕
As shown in FIGS. 4 to 8, the straw waste that has fallen from the delivery position of the harvested cereal from the conveying device 11 of the harvesting conveyance unit 3 to the inlet plate 15 is placed in the upper part of the oil tank 23 from the lower space of the inlet plate 15. A guide plate 45 that guides the outside is provided.

  Since the oil tank 23 is located below the delivery part of the harvested cereal meal from the harvesting conveyance unit 3 to the threshing device 4, the falling straw scraps may fall on the upper part of the oil tank 23 and accumulate, so that the guide plate 45 prevents such accumulation of straw scraps.

Next, the guide plate 45 will be described.
As shown in FIG. 5, the guide plate 45 is located on the front side of the machine body in the lower space of the inlet plate 15 and guides the waste scrap outwardly to the front side, and the lower space of the inlet plate 15. And a lateral guide plate 45B which is located on one side in the lateral direction of the machine body and guides the waste waste laterally outward.

  The front guide plate 45A is composed of four divided guide bodies 45A1 to 45A4 that are divided along the machine body width direction, and the lateral guide plate 45B is composed of a single plate. Of the four divided guide bodies 45A1 to 45A4 of the front guide plate 45A, the rightmost divided guide body 45A1 has a shape obtained by bending a plate material into a substantially L shape in plan view.

  The second divided guide body 45A2 from the right is formed of a flat plate-like plate material, and the second divided guide body 45A2 is configured to be openable and closable at the upper side. That is, the second divided guide body 45A2 is divided into an upper side guide body portion 45A21 and a lower side guide body portion 45A22, which are relatively rotated around the horizontal axis through the hinge 46 at the upper and lower intermediate portions. It is pivotally connected.

  The lower side guide body portion 45A22 is fixed in a vertically closed position by being fastened and fixed to the divided guide bodies 45A1 and 45A3 on both the left and right sides with bolts. In addition, the upper side guide body portion 45A21 releases the closed position (see FIGS. 4 and 5) that is fixed in the vertical state by fastening and fixing the divided guide bodies 45A1 and 45A3 on the left and right sides with bolts, and the screw stopper. The hinge 46 is provided so as to be switched to an open posture (see FIG. 7) that pivots downward around the lateral swing fulcrum of the hinge 46 to open the upper portion.

  The rightmost divided guide body 45A1 and the lower side guide body portion 45A22 of the second divided guide body 45A2 are fastened and fixed to the mounting bracket 48 provided on the top 23c1 of the mountain-shaped upper surface 23c of the oil tank 23 with bolts. Has been. The rightmost divided guide body and the second divided guide body are connected and fixed by bolts.

  The third divided guide body 45A3 from the right is provided in a state of being connected to the left side of the second divided guide body 45A2, and is connected and fixed to the lower side guide body portion 45A22 of the second divided guide body 45A2 with bolts. A fourth divided guide body 45A4 is provided on the front side of the third divided guide body 45A3.

  The fourth divided guide body 45A4 from the right is connected and fixed to the front surface side of the third divided guide body 45A3 with a bolt in a tightened state, and is received and held on the left side from the upper side portion of the third divided guide body 45A3. 19 is provided so as to cover the upper side on the left side of the oil tank 23 over the upper portion of 19. The fourth divided guide body 45A4 is located above the transmission mechanism in the cutting transmission structure as will be described later, and guides the waste scraps falling from above onto the oil tank 23, and the straw scraps on the front side of the fuselage. It is comprised so that it may guide.

  The lateral guide plate 45B is connected and fixed to the left end portion of the third divided guide body 45A3 with a bolt in a fastened state, and extends in a cantilevered manner toward the rear. The lateral guide plate 45B is bent and formed in a substantially L shape when viewed from the front, and is provided in a laterally outwardly inclined posture so as to guide the downflow toward the left outward in the lateral width direction of the fuselage.

As shown in FIG. 4, the second divided guide body 45 </ b> A <b> 2 is provided at a position corresponding to the machine body front side of the fuel filler opening 25. When performing the refueling operation, as shown in FIG. 7, the refueling is performed from the front side of the machine body through the notch Q formed by switching the upper side guide body portion 45A21 of the second divided guide body 45A2 to the open posture. Can be done. Therefore, the notch Q formed by opening the upper side guide body portion 45A21 of the second divided guide body 45A2 forms an opening portion for refueling.
Accordingly, the upper guide body portion 45A21 of the second divided guide body 45A2 corresponds to the lid F.

[Gap filling material]
A gap filling member 71 made of a soft material is provided between the guide plate 45 and the inlet plate 15 as described above. The gap filling member 71 is provided so as to fill a gap between the front guide plate 45A and the side guide plate 45B and the inlet plate 15.

  That is, as shown in FIGS. 5 and 7, a state in which the third divided guide body 45A3 of the front guide plate 45A and the upper side of the lateral guide plate 45B are fastened and fixed with bolts to extend upward. The gap filling member 71 made of a rubber plate, which is an example of a soft material, is provided. By providing the gap filling member 71 in this manner, the gap between the upper edge portion of the guide plate 45 and the inlet plate 15 can be filled, and it is possible to prevent straw scraps from falling on the upper portion of the oil tank 23.

  Since the gap filling member 71 is a rubber plate, the inlet plate that moves downward when the threshing device 4 is assembled after the harvesting conveyance unit 3, the guide plate 45, etc. are assembled in advance in the assembly manufacturing process of the combine. Even if 15 contacts the gap filling member 71 and receives a pressing force, the gap filling member 71 is elastically deformed and allows the inlet plate 15 to move downward, so that damage to the member can be avoided.

  If explanation is added, the assembling work of the threshing device 4 will be installed at a predetermined position of the machine body while suspending and supporting the threshing device 4 with a crane. At this time, if the guide plate 45 extends to a position close to the entrance plate 15, the entrance plate 15 may come into contact with the guide plate 45 and be damaged. However, by providing the gap filling member 71 made of a rubber plate that fills the space between the inlet plate 15 and the guide plate 45, it is possible to avoid the disadvantage that the member is damaged when the threshing device 4 is assembled as described above.

  The second divided guide body 45A2 adjacent to the third divided guide body 45A3 is made of a metal material over the entire width in the vertical direction, but when the threshing device 4 is assembled, the upper side guide body portion 45A21. By switching to the open posture, it is possible to avoid damage due to contact with the inlet plate 15.

  The rightmost divided guide body 45A1 is bent in a substantially L shape in plan view, and for example, interferes with a power transmission mechanism for the handling cylinder 13 of the threshing device 4 and other members on the body side as will be described later. In order to avoid this, it is bent to the front side of the fuselage. Therefore, since there is little possibility of interference with the inlet plate 15, the gap filling member 71 is not provided between the rightmost divided guide body 45 </ b> A <b> 1 and the inlet plate 15.

[Transmission structure]
Next, a transmission structure for transmitting the power of the engine 7 to each part will be described.
As shown in FIG. 9, the power of the engine 7 disposed below the boarding operation unit 6 is transmitted from the output shaft 7 a of the engine 7 to the transmission case 49 via the belt-type transmission mechanism 47. Although not shown, the transmission case 49 includes a hydrostatic continuously variable transmission (HST) for driving and a turning transmission mechanism. Then, traveling power is transmitted from the transmission case 49 to the left and right crawler traveling devices 1. The belt-type transmission mechanism 47 is provided with a traveling tension mechanism 51 that applies tension to the transmission belt 50.

  Further, the power of the engine 7 is transmitted from the output shaft 7a to the branch transmission mechanism 64 via the belt transmission mechanism 62 and the lateral transmission shaft 63, and the branch transmission mechanism 64 causes the threshing device 4 and the harvesting gear as the cutting transmission device. It is configured to be branched and transmitted to a driving hydrostatic continuously variable transmission (HST) (hereinafter abbreviated as a cutting HST) 65. In the belt transmission mechanism 62, three transmission belts 62C are wound around the pulley 62A on the engine side and the pulley 62B on the driven side.

  As shown in FIGS. 10 and 11, the cutting HST 65 is located at a position above the rear part of the oil tank 23 and is extended to the rear upper side of the left side surface 23 a as the side wall of the oil tank 23. Are fixed by fastening them with bolts 70.

  That is, as shown in FIG. 7, a plurality of attachment portions 67 are integrally formed in a portion extending leftward and upward on the left side surface 23 a so as to protrude toward the left outer side, as shown in FIG. 11. Thus, the casing 68 of the cutting HST 65 is fastened to the front end surface of the mounting portion 67 with the bolt 70, and the cutting HST 65 is attached and fixed. As a result, a gap corresponding to the protruding amount of the attachment portion 67 is formed between the cutting HST 65 and the left side surface 23 a of the oil tank 23.

  As shown in FIG. 9, the lateral transmission shaft 63 is rotatably supported in a state where the outer peripheral side is covered by an integrally formed relay transmission case 75, and corresponds to the left end portion of the oil tank 23. Provided in a state extending from the right side position to the right side outward from the right end position along the horizontal direction of the body, and in a state of being located on the rear side of the body of the oil tank 23 and on the front side of the body of the threshing device 4. It has been.

  Further, the power is branched from the middle portion of the lateral transmission shaft 63 to the front-rear transmission shaft 78 via the bevel gear mechanism 77, and the threshing device 4 is connected via the transmission pulley 79 and the transmission belt 80 provided on the transmission shaft 78. Power is transmitted to the handling cylinder 13.

  As shown in FIG. 11, the relay transmission case 75 is also configured to serve as the case of the branch transmission mechanism 64, and includes a horizontal cylindrical portion 75 </ b> A that surrounds the outer peripheral portion of the horizontal transmission shaft 63, and the branch transmission mechanism 64. A branch transmission case portion 75B surrounding the periphery and a mounting flange portion 75C are integrally formed, and are fixed to the body frame 21 by bolting the mounting flange portion 75C.

  The branch transmission mechanism 64 is provided in a state of being positioned on the left side of the machine body with respect to the oil tank 23. The branch transmission mechanism 64 includes a lateral transmission shaft 63, a relay transmission shaft 81, a threshing drive transmission shaft 82, and a reaping drive transmission shaft 83, which are provided in a relay transmission case 75, and transmission gears 84 to 87. Are provided in a state of being interlocked and connected in sequence and arranged in the longitudinal direction of the aircraft.

  As shown in FIGS. 9, 10, and 11, a transmission pulley 88 is attached to the threshing drive transmission shaft 82. Power is transmitted from the transmission pulley 88 to the sorting unit 14 of the threshing device 4 via the transmission belt 89. The threshing drive transmission shaft 82 protrudes outward from the left side of the relay transmission case 75, and a transmission pulley 88 is attached to the outward protrusion.

  Power is transmitted from the cutting drive transmission shaft 83 to the transmission input shaft 90 of the cutting HST 65 via the input transmission mechanism 91. The input transmission mechanism 91 includes a drive-side transmission pulley 92 that is fixed to a cutting drive transmission shaft 83 that projects outwardly to the left of the relay transmission case 75, and a driven-side transmission pulley 93 that is provided on the transmission input shaft 90. The two input transmission belts 94 wound around them and an input tension mechanism 95 that applies tension to the input transmission belt 94 are provided.

  As shown in FIGS. 10 and 13, in the input transmission mechanism 91, the lower side portion enters a narrow space in the left-right direction formed between the left side surface 23 a of the oil tank 23 and the relay transmission case 75. It is provided in a state. The input transmission mechanism 91 disposed in a narrow space sandwiched between members whose positions on both the left and right sides are fixed in this manner will be described below in order to facilitate maintenance work such as inspection and repair of the transmission belt 94. It has become a structure.

  As shown in FIG. 13, the drive-side transmission pulley 92 is composed of single pulley bodies 92a and 92b around which two input transmission belts 94 are wound respectively, and the pulley bodies 92a and 92b can be removed. It is configured to be connected and fixed with bolts 117. Each of the pulley bodies 92a and 92b can be manually removed from the lateral outer side of the machine body during maintenance work, so that a space for passing the input transmission belt 94 can be secured correspondingly, and two input transmissions can be secured. The belt 94 can be removed.

  That is, as shown in FIGS. 12 and 13, a drive rotator 73 is externally fitted to the cutting drive transmission shaft 83 so as to be integrally rotatable by key connection. The drive rotating body 73 is formed in a substantially triangular shape in a side view, and a bolt insertion hole 74 is formed at a position corresponding to the top portion. The drive rotator 73 is prevented from coming off by a contact plate 113 fastened and fixed to the end of the cutting drive transmission shaft 83 by a nut 114. That is, as shown in FIG. 13, a threaded portion 115 projecting outward is formed at the shaft end of the cutting drive transmission shaft 83, and a nut 114 is fastened to the threaded portion 115 from the outer side via the contact plate 113. Like to do.

  A drive-side transmission pulley 92 is provided so as to be integrally rotatable in a state of being located on the inner side of the drive rotator 73 in the body width direction. Of the two pulley bodies 92 a and 92 b in the drive side transmission pulley 92, the pulley body 92 a located on the outer side in the lateral width direction of the body is integrally rotatable with three bolts 116 with respect to the bolt insertion hole 74 of the drive rotating body 73. It is connected to the bolt. The pulley body 92b located on the inner side in the lateral direction of the machine body has three pulley bodies 92b with different positions in the circumferential direction with respect to the connecting portion with the drive rotating body 73 with respect to the pulley body 92a located on the outer side. The bolts 117 are bolted so as to be integrally rotatable. The driven transmission pulley 93 positioned above is configured by a single pulley body integrally formed with two belt winding portions.

In such a configuration, at the position where it does not interfere with the relay transmission case 75 located on the outer side in the lateral direction of the fuselage of the input transmission mechanism 91, the fastening by the bolts 116, 117 is sequentially released from the lateral side of the fuselage, By removing the pulley bodies 92a and 92b one by one from the drive rotating body 73, the two input transmission belts 94 can be sequentially removed. With such a configuration, the maintenance work of the input transmission mechanism 91 can be easily performed.
Note that the input transmission belt 94 may be removed by simply removing one pulley body 92a from the other pulley body 92b without removing both pulley bodies 92a and 92b.
By configuring as described above, the width dimension of the input transmission mechanism 91 in the body width direction can be made compact.

  As shown in FIG. 10, the input tension mechanism 95 is provided on the left outer side of the left side surface 23 a of the oil tank 23. The input tension mechanism 95 includes an L-shaped swing arm 97 that is swingably supported by a fixed shaft 96 fixed to the left side surface 23 a, and a tension that is positioned at the end of the swing arm 97. A ring body 99 and a spring 101 that swings and biases the swing arm 97 are provided. The tension ring body 99 imparts tension to the input transmission belt 94 by the biasing force of the spring 101.

  The power after being shifted by the cutting HST 65 is transmitted from the shifting output shaft 102 of the cutting HST 65 to the cutting input shaft 103 provided inside the horizontal tubular frame 18. The reaping input shaft 103 is provided in a state of being positioned on the front side of the machine body relative to the speed change output shaft 102 of the reaping HST 65, and an output transmission mechanism 104 that transmits power from the speed change output shaft 102 to the reaping input shaft 103 includes an oil tank. 23 on the same side as the cutting HST 65 in the width direction of the fuselage, specifically, on the outer surface on the left side of the oil tank 23.

  As shown in FIGS. 9 and 10, the output transmission mechanism 104 includes a drive side transmission pulley 105 fixed to the speed change output shaft 102, a driven side transmission pulley 106 provided at the left end of the cutting input shaft 103, and over them. The output transmission belt 107 is wound, and the tension wheel 108 that applies tension to the output transmission belt 107 is provided.

  As shown in FIG. 9, the cutting input shaft 103 is provided in a long shape over both side ends in the lateral width direction of the machine body inside the horizontal tubular frame 18, and is rotated via bearings at both side ends in the axial direction. It is supported by the horizontally oriented cylindrical frame 18 in a movable and stable manner.

  The power transmitted to the cutting input shaft 103 is transmitted to the cutting transport unit 3. That is, as shown in FIG. 9, the bevel gear mechanism 111 that is transmitted to the conveying device 11 through the bevel gear mechanism 110 provided in the middle portion in the horizontal width direction of the cutting input shaft 103 and is provided at the right end portion and the front-rear direction It is transmitted to the pulling device 8 and the cutting device 9 via the transmission shaft 78. Although not described in detail, the power transmitted to the cutting input shaft 103 is transmitted to the auxiliary conveying device 17 via the transmission mechanism 125 in addition to the cutting conveying unit 3.

  The cooling air of the engine 7 provided below the boarding operation unit 6 is sucked from the outside of the right side of the body and then discharged toward the left side. The exhaust air of the engine 7 is heated by the heat of the engine 7. It has become. Then, the slide between the outer peripheral surface of the horizontal cylindrical frame 18 and the receiving holder 20 is provided at a position where the horizontal cylindrical frame 18 is supported by the right receiving holder 20 so as to be rotatable around the horizontal axis. The grease is filled in advance so as to act on the location. If the cooling air of the engine 7 is blown onto the receiving and holding part 20, the grease may be melted and flowed out.

  Therefore, as shown in FIG. 14, the right side end portion of the horizontal tubular frame 18 is flat to prevent the engine cooling air from being blown to a portion that is rotatably supported by the right receiving holding portion 20. A large-diameter disk-shaped windproof plate 112 is provided. The windbreak plate 112 is externally fitted from the right end portion of the horizontal tubular frame 18 and is retained by the circlip 118 in a state where it is received by a stepped portion formed on the outer peripheral portion of the horizontal tubular frame 18. It is fixed.

  As described above, by providing the windproof plate 112 at the right side of the receiving holding portion 20 in the horizontal cylindrical frame 18, the grease provided in the receiving holding portion 20 is eluted by the exhaust air of the engine 7. Is preventing.

[Another embodiment]
(1) In the above embodiment, the front guide plate 45A in the guide plate 45 is configured by the four divided guide bodies 45A1 to 45A4 that are divided along the lateral width direction of the machine body. Instead of this, the front guide plate 45A may be composed of three or less or five or more divided guide bodies, and the front guide plate 45A may be composed of a single plate. In the above embodiment, the lateral guide plate 45B is configured by a single plate. However, instead of such a configuration, the lateral guide plate 45B is configured by a plurality of divided guide bodies. May be used.

(2) In the above embodiment, the guide plate 45 includes the front guide plate 45A and the lateral guide plate 45B. However, the guide plate 45 is one of the front guide plate 45A and the lateral guide plate 45B. It may be provided with only one side, and other than the front side guide plate 45A and the side side guide plate 45B, the side side guide plate 45B provided with the other side side guide body located on the opposite side to the machine body width direction, etc. It can be implemented in various forms.

(3) In the above embodiment, the notch Q is formed in the guide plate 45 at a location on the front side of the oil supply port 25 of the oil tank 23 and adjacent to the gap filling member 71. The upper guide body portion 45A21 as the lid F that can be switched between the open state and the closed state of the notch Q is provided, but instead of such a configuration, the following (3-1) It is good also as a structure as described in (3-3).

(3-1) A notch is formed in a portion of the guide plate 45 that is laterally outward of the fuel filler opening 25 and adjacent to the gap filling member 71, and the notch is opened and closed. A configuration with a switchable lid.
Specifically, a region not provided with the gap filling member 71 is formed at a position in the middle of the guide plate 45 corresponding to the filler opening 25 of the lateral guide plate 45B, and the upper side guide is formed as a lid F in the region. A rotatable guide body part having the same configuration as that of the body part 45A21 is formed, the guide body part is provided so as to be openable and closable, and a notch for forming an oil supply opening part in the open state is formed.

(3-2) A notch that forms an opening portion for refueling is formed at a position on the front side of the filler opening 25 in the gap filling member 71, and a lid that can be switched between a state in which the notch is opened and a state in which it is closed. The configuration provided with.
Specifically, in the front side guide plate 45 </ b> A of the guide plate 45, a gap filling member 71 is provided on the upper side also at a location corresponding to the oil supply port 25 in the front-rear direction of the machine body, and at a location corresponding to the oil supply port 25. A part of the gap filling member 71 is formed with a rotating body part having the same configuration as the upper side guide body part 45A21 as a cover body F. The rotating body part is provided so as to be openable and closable. It is the structure in which the notch to form is formed.

(3-3) A notch that forms an opening portion for oil supply is formed in the gap filling member 71 at a position laterally outward of the oil filler opening 25, and the notch can be switched between an open state and a closed state. A configuration provided with a lid.
Specifically, in the side guide plate 45B of the guide plate 45, a rotatable guide body having a configuration similar to that of the upper side guide body portion 45A21 as a lid F at a position corresponding to the fuel filler opening 25 in a side view. A portion is formed, the guide body portion is provided so as to be openable and closable, and a notch that forms an opening portion for refueling in an open state is formed.

(4) In the above embodiment, the gap filling member 71 is composed of a rubber plate as a soft material. However, the material is not limited to a rubber material, and any material such as a synthetic resin material or a non-woven fabric can be used as long as it is a soft material. But you can.

(5) In the above embodiment, the cutting HST 65 is provided at the left side of the body of the oil tank 23. However, the cutting HST 65 is provided at the right side of the body of the oil tank 23 or separated from the oil tank 23. You may implement by various structures, such as a structure with which it was equipped.

(6) In the above embodiment, the oil tank 23 is provided below the inlet plate 15, and the front side portion 23C2 of the upper surface 23C of the oil tank 23 is provided in the forward downward inclined posture. Instead, the upper surface of the oil tank 23 may be provided in a flat shape, and the guide plate 45 may cover the end of the upper surface of the oil tank 23. Further, the oil tank 23 may not be provided below the inlet plate 15.

(7) In the above-described embodiment, the windproof plate 112 for preventing the elution of the grease in the receiving holding unit 20 is provided in a large-diameter and flat disk shape, but this configuration is replaced. For example, the windbreak plate 112 may have a curved shape that curves toward the receiving holding portion 20 toward the outer side in the radial direction, or has a small diameter that is slightly larger than the outer shape of the horizontal cylindrical frame 18. A disk-shaped thing may be sufficient. In short, it may be anything as long as it prevents the exhausted air from the engine 7 from being blown to the receiving and holding portion 20, and can be implemented in various shapes.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a combine that includes a harvesting conveyance unit that harvests a planted cereal and conveys the harvested cereal to the rear and a threshing unit that threshs the harvested cereal.

DESCRIPTION OF SYMBOLS 3 Cutting and conveying part 4 Threshing part 15 Inlet plate 23 Oil tank 23c Upper surface 23c2 Front side part 25 Refueling port 45 Guide plate 45A Front side guide plate 45B Lateral side guide plate 65 Cutting cutting transmission device 71 Crevice filling member F Cover Q Notch

Claims (6)

Reaping the planted cereal cocoon and transporting the reaped cereal cocoon backward,
A threshing section for threshing the harvested cereal meal;
An entrance plate for guiding the harvested cereals conveyed by the reaping and conveying unit to the cereal supply port formed on the front side surface of the threshing unit;
A guide plate that guides the waste scraps that have fallen from the delivery location of the cutting and conveying unit and the inlet plate toward the outer side of the lower space of the inlet plate;
A combine provided with a gap filling member made of a soft material provided between the guide plate and the inlet plate. The guide plate is located on the front side of the fuselage in the lower space of the inlet plate, and is located on one side of the fuselage lateral width in the lower space of the inlet plate, and guides the waste scrap outwardly from the front side. And a side guide plate that guides the waste from the side to the outside,
The combine according to claim 1, wherein the gap filling member fills a gap between each of the front guide plate and the lateral guide plate and the inlet plate. An oil tank is provided below the inlet plate,
The front side portion of the upper surface of the oil tank is provided in a forward-declining inclination posture,
The combine according to claim 2, wherein the front guide plate is provided in a downwardly inclined posture in a state of being connected to a front side portion of the upper surface. An oil tank is provided below the inlet plate,
An oil filler opening is formed on the upper surface of the oil tank,
In the guide plate, a notch for forming a refueling opening is formed at a location on the front side of the oil supply port or a location on the lateral outer side of the oil supply port and adjacent to the gap filling member. The combine according to any one of claims 1 to 3, further comprising a lid that can be switched between a state in which the notch is opened and a state in which the notch is closed. An oil tank is provided below the inlet plate,
An oil filler opening is formed on the upper surface of the oil tank,
In the gap filling member, a notch that forms an opening portion for oil supply is formed at a location on the front side of the oil supply port or on a laterally outward side of the oil supply port, and the notch is opened and closed. The combine according to any one of claims 1 to 3, further comprising a switchable lid. A cutting transmission device that shifts the power transmitted to the cutting conveyance unit is provided on one side of the oil tank in the lateral direction of the machine body,
The combine according to any one of claims 3 to 5, wherein the lateral guide plate is provided in a laterally outwardly inclined posture so as to guide the waste scrap toward the laterally outward direction of the cutting transmission. .

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