JP2015142514A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of a combine harvester having a large width due to the arrangement of devices such as exhaust treatment device and DPF in the vicinity of an engine for the necessity to correspond to environmental problems such as exhaust gas regulation, while adopting these devices and providing a combine harvester which can be maintained in a conventional size.SOLUTION: A combine harvester is provided with a reaping power transmission part which transmits power from an engine (E) to a transport part (9), in which a chain transmission part which directly transmits power to a transport input axis (56) in the transport part (9) is arranged between a threshing part (5) and a storage part (6) and idlers are arranged so that both a sagging side line and a stretching side line of a chain (53) which constitutes the chain transmission part are bent upward.

Description

  The present invention relates to a combine.

  A conventional combiner splits and transmits power from an engine to a threshing device, a reaping unit, etc. as well as a traveling device. In the combine described in Patent Document 1, the power from the engine is transmitted to the threshing device including the wind selection unit, the conveying device, and the mowing unit via a speed reducer such as a gear box or a belt transmission.

JP 2002-238340 A

  In response to the necessity of dealing with environmental problems such as exhaust gas regulations, an exhaust treatment device and a DPF are provided in the vicinity of the engine. In order to maintain the radiator capacity of the engine, the combiner may be equipped with a dust removing mechanism such as a double radiator fan. As a result, there is a problem that the width direction of the combine increases. Therefore, the problem to be solved by the present invention is to provide a combine capable of maintaining the conventional size while employing these devices.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention described in claim 1 is provided with a cutting part (4) on the front side of the machine body frame (2) supported by the traveling part (3), and a threshing part (1) on the left and right sides of the machine body frame (2). 5), a storage part (6) is provided on the left and right sides, an operation part (7) is provided on the front side of the storage part (6), and an engine (E) is provided below the operation part (7). In a combine provided with a transport unit (9) for transporting cereals from the reaping unit (4) to the threshing unit (5), the reaper transmits power from the engine (E) to the transport unit (9). Among the power transmission units, a chain transmission unit that directly transmits power to the conveyance unit input shaft (56) of the conveyance unit (9) is provided between the threshing unit (5) and the storage unit (6). Both the slack side line and the tension side line of the chain (53) constituting this chain transmission portion are on the upper side. To bend to a combine, wherein the placing the idler to each site.

  According to a second aspect of the present invention, there is provided a stationary idler (54) whose relative position with respect to the driven sprocket (52) that constitutes the chain transmission portion and is fixed to the conveying portion input shaft (56) is the same. And a tension idler (55) for applying tension to the chain (53), and the tension idler (55) is arranged on the inner peripheral side of the circuit line of the chain (53). The combine according to claim 1.

  According to a third aspect of the present invention, in the conveyance unit support member (57) that supports the conveyance unit input shaft (56), the stationary idler (54) is provided. It is a combine.

  According to a fourth aspect of the present invention, the harvesting power transmission portion is constituted by two or more endless belt transmission portions, and the rearmost transmission located at the rearmost among the transmission pulleys constituting these endless belt transmission portions. A pulley (31) and an opposing transmission pulley (32) that constitutes an endless belt transmission portion together with the rearmost transmission pulley (31) are provided, and the opposing transmission pulley (32) is the rearmost transmission pulley (31). The combine according to any one of claims 1 to 3, wherein the combine is located on the lower side.

  Further, the invention according to claim 5 is the tension clutch mechanism (30) in the second endless belt transmission portion (30) that transmits the power from the engine (E) secondly among the two or more endless belt transmission portions. 33) The combine according to claim 4, wherein 33) is provided.

  According to invention of Claim 1, the chain transmission part which transmits motive power directly to the conveyance part input shaft (56) of a conveyance part (9) is provided between a threshing part (5) and a storage part (6). At the same time, the idler is disposed at each portion so that both the slack side line and the tension side line of the chain (53) constituting the chain transmission portion are bent upward, so that the engine (E ) Can be configured flexibly. Thereby, it can prevent that the width direction of a combine becomes large.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the stationary idler (54) and the tension idler (55) are provided to bend the chain (53). 55) is arranged on the inner circumference side of the circumference line of the chain (53), so that the idler arranged on the outer circumference side of the circumference line of the chain (53) becomes the fixed idler (54), and its position is changed. Thus, interference with other members can be prevented.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the transport unit support member (57) that supports the transport unit input shaft (56) includes the fixed idler (54). Thus, when the transport unit support member (57) is removed from the specified position, the stationary idler (54) that has bent the chain (53) can be also removed from the specified position at the same time, and the periphery of the drive sprocket (51) is received separately. Maintenance of the chain (53) and the like can be performed without any problems.

  According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the last pulley located at the rearmost among the transmission pulleys constituting the endless belt transmission unit. A direction transmission pulley (31) and an opposing transmission pulley (32) that constitutes an endless belt transmission unit together with the rearmost transmission pulley (31) are provided, and the opposing transmission pulley (32) is the rearmost transmission pulley (31). ), A space can be secured below the rearmost transmission pulley (31). By securing this space, for example, a maintenance space at the lower part of the elevator for transferring the threshed grain to the glen tank is made, and maintenance of the cleaning port at the lower part of the elevator is facilitated.

  According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the tension clutch mechanism is provided in the second endless belt transmission portion (30) for transmitting the power from the engine (E) second. Since (33) is provided, a clutch is provided in the transmission portion that indirectly receives the power from the engine (E), so that vibration from the engine (E) does not affect the on / off of the power. In addition, when the power is cut off by the clutch, more members can be stopped and the life of the transmission section can be extended.

1 is an overall side view of a combine according to a first embodiment of the present invention. It is a whole top view of the combine of FIG. FIG. 2 is a rear sectional view of the combine of FIG. It is a side view of the cutting power transmission part of the combine of FIG. It is a whole side view of the combine concerning 2nd embodiment. It is a side view of the conveyance part cover of the combine of FIG. It is a general view of the combine concerning 3rd embodiment. It is the whole combine side view of the combine of FIG. It is a side view of the operation part periphery of the combine of FIG. It is a whole side view of the combine concerning 4th embodiment. It is a whole side view of the combine concerning 5th embodiment. It is a side view of the traveling part of a combine concerning a 6th embodiment. It is front sectional drawing of the driving | running | working part of FIG. It is the elements on larger scale of the traveling part of FIG.

  Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings. In this case, unless otherwise specified, an operator who rides on the aircraft is referred to as front, rear, left, and right in the forward direction of the aircraft.

  FIG. 1 is a right side view of the entire combine according to the first embodiment of the present invention, and FIG. 2 is an overall plan view. The combine described as the present embodiment is a general-purpose combine that puts all the harvested cereal into the threshing unit 5, and the reaper that harvests the cereal on the front side of the machine body frame 2 supported by the traveling unit 3 constituted by a crawler. 4, a threshing unit 5 for processing the harvested cereal meal supplied from the harvesting unit 4 is provided on the left side of the machine frame 2, and an operation unit 7 and a storage unit 6 are provided on the right side from the front. And this storage part 6 is equipped with the Glen tank which stores the grain threshed in the threshing part 5, and is equipped with the auger apparatus 8 which carries a grain out of a vehicle from this Glen tank in the back of a Glen tank. Furthermore, the conveyance part 9 which conveys the cereals harvested by the cutting part 4 to the threshing part 5 is provided on the left side of the machine body.

  The mowing unit 4 is configured to be movable up and down with respect to the soil surface by a hydraulically driven telescopic cylinder. The threshing unit 5 separates the cereal grains from the cereal grains by a handling process, and the separated cereal grains pass through the handling net and are subjected to wind sorting by blowing air from the tang. A diesel engine E is disposed in front of the storage unit 6 and below the operation unit 7. An operator who uses a combine usually sits on the driver's seat of the driving unit 7 disposed at the top of the engine E, operates the combine, and performs a series of operations such as running and cutting.

  The engine E generates power for driving driving units such as the traveling unit 3, the cutting unit 4, the threshing unit 5, and the conveying unit 9. The engine E is provided with two cooling fans 11 and 11 and a radiator on the right side thereof, and an exhaust treatment device 12 on the top.

  In FIG. 3, sectional drawing from the back surface direction of the combine concerning this embodiment is shown. FIG. 3 is a partially enlarged view of the cutting power transmission unit mainly from the engine E to the transport unit 9. FIG. 4 is a side view of the cutting power transmission unit of FIG. 3 as viewed from the left side. The combine in this embodiment comprises the cutting power transmission part which transmits the motive power from the engine E to the conveyance part 9 by two or more endless-band transmission parts, and these endless-band transmission parts are the threshing part 5 and the storage part. 6 is provided. The endless belt transmission section is composed of an endless belt such as a V-belt or a roller chain, and a drive-side transmission pulley and a driven-side transmission pulley located on the inner peripheral side of this endless belt. Add a tension pulley that gives tension to the endless belt. In the present embodiment, four endless belt transmission units 20, 30, 40, and 50 are provided, and while these reduce the rotational power from the engine E, they are transmitted to the conveyance unit 9 and further from the conveyance unit 9 to the cutting unit 4 Rotational power is transmitted to

  A first endless belt transmission unit 20 that firstly transmits power from the engine E includes two first endless belts 26 of V belts, an engine output transmission pulley 21 fitted into the output shaft of the engine E, The driven transmission pulley 25 and the first tension pulley 27 are configured. A second endless belt transmission unit 30 that transmits power from the engine E secondly includes a driving-side counter transmission pulley 32 and a driven-side rearmost transmission pulley 31 on a support board 33. The second endless belt 34, which is a V-belt, and a tension pulley are added. The tension pulley constitutes the tension clutch mechanism 33, and connects and disconnects the power to the reaping portion by the operator's operation. The first driven transmission pulley 25 of the first endless belt transmission unit 20 and the opposing transmission pulley 32 on the drive side of the second endless belt transmission unit 30 are arranged coaxially and rotate as a unit.

  In the present embodiment, among the transmission pulleys that constitute the endless belt transmission portion, the rearmost transmission pulley 31 that is positioned on the driven side of the second endless belt transmission portion 30 is the rearmost one. Here, “most rearward” means that a part of the outer diameter of the transmission pulley is most rearward of the fuselage. In the second endless belt transmission unit 30, the opposing transmission pulley 32 is disposed below the rearmost transmission pulley 31.

  Among the transmission pulleys constituting the endless belt transmission portion, the rearmost transmission pulley 31 located at the rearmost side and the opposing transmission pulley 32 that constitutes the endless belt transmission portion together with the rearmost transmission pulley 31 are provided. Since the pulley 32 is positioned below the rearmost transmission pulley 31, a space can be secured below the rearmost transmission pulley 31. By securing this space, a maintenance space at the lower part of the elevator 22 for transferring the threshed grains to the glen tank is created, and maintenance of the cleaning port 23 of the elevator 22 is facilitated.

  Since the tension clutch mechanism 33 is provided in the second endless belt transmission portion 30 that transmits the power from the engine E secondly, a clutch is provided in the transmission portion that indirectly receives the power from the engine E. The vibration from the engine E does not affect the power on / off. In addition, when the power is cut off by the clutch, more members can be stopped and the life of the transmission section can be extended.

  The third endless belt transmission unit 40 is composed of two transmission pulleys, one endless belt, and one tension pulley, and the rearmost transmission pulley 31 on the driven side of the second endless belt transmission unit 30, The endless belt transmission unit 40 is arranged coaxially with the transmission pulley on the driving side and rotates as a unit.

  The fourth endless belt transmission unit 50 is a fourth endless belt transmission unit that transmits the power from the engine E to the fourth. The chain 53 is an endless belt, the driven sprocket 52 is a driven pulley, and the driving pulley. And a driving sprocket 51. The transmission pulley on the driven side of the third endless belt transmission unit 40 and the drive sprocket 51 of the fourth endless belt transmission unit 50 are arranged coaxially and rotate as a unit. In addition, it is for making a pulley diameter small by making the endless belt of the 4th endless belt transmission part 50 into a roller chain.

  The driven sprocket 52 is fitted to the transport unit input shaft 56 constituting the transport unit 9 and directly transmits power to the transport unit 9. The fourth endless belt transmission portion 50 is a chain transmission portion having a chain 53, and each idler is bent so that both the slack side line and the tension side line of the chain 53 constituting the chain transmission portion bend upward. Is provided.

  One of these idlers is a stationary idler 54 whose relative position with the driven sprocket 52 does not change. “The relative position does not change” means that the relative position between the axis of the stationary idler 54 and the axis of the driven sprocket 52 does not change depending on the length and tension of the chain 53. The other idler is a tension idler 55 that applies tension to the chain 53, and the relative position between the axis of the tension idler 55 and the axis of the driven sprocket 52 varies depending on the tension of the chain 53.

  In FIG. 4, the chain 53 rotates clockwise, and a tension idler 55 comes into contact with the tension side line from which the chain 53 moves from the driven sprocket 52 to the driving sprocket 51, and from the driving sprocket 51 to the driven sprocket 52. The stationary idler 54 is configured to contact the slack side line on which the movement moves from the outer peripheral side, and all the lines are bent upward. Further, with this configuration, the tension idler 55 is arranged on the inner peripheral side of the circulation line of the chain 53.

  While providing the chain transmission part which transmits motive power directly to the conveyance part input shaft 56 of the conveyance part 9 between the threshing part 5 and the storage part 6, the slack side line and tension side of the chain 53 which comprise this chain transmission part By arranging the idlers so that each of the lines bends upward, the chain transmission portion can be configured flexibly while avoiding the engine E when viewed from the side. Thereby, it can prevent that the width direction of a combine becomes large.

  In order to bend the chain 53, a fixed idler 54 and a tension idler 55 are provided, and the tension idler 55 is disposed on the inner peripheral side of the circulation line of the chain 53, so that the idler is disposed on the outer peripheral side of the circulation line of the chain 53. However, since it becomes the fixed idler 54, its position is not changed, and interference with other members can be prevented.

  Note that a fixed idler 54 is provided on the transport unit support member 57 that supports the transport unit input shaft 56 of the transport unit 9. Since the transport unit support member 57 that supports the transport unit input shaft 56 is provided with the fixed idler 54, when the transport unit support member 57 is removed from the specified position, the fixed idler 54 that has bent the chain 53 is also simultaneously moved to the specified position. The chain 53 can be loosened and maintenance of the chain 53 and the like can be performed without separately receiving the periphery of the drive sprocket 51.

  FIG. 5 is an overall left side view of the combine according to the second embodiment, and FIG. 6 is a side view of the transport section cover 61 of the combine of FIG. The reaping part 4 and the threshing part 5 in FIG. 5 are partially transparent. The conveyor cover 63 that covers the roller chain in the combine conveyor 9 according to the present embodiment is provided with an inclined plate 62 on the side on which the cereals from the cutting unit 4 are carried, and the upper part of the conveyor cover 63. Is provided with a dust suction fan 63. The inclined plate 62 has a front-lowering structure, and can further protrude from the front end from the transport unit cover 61. With this configuration, the stems and grains carried by the roller chain in the transport unit 9 can be guided downward. In addition, since dust from the cereal can be guided into the transport unit cover 61 and the amount of dust coming out can be reduced, the visibility can be improved. The amount of dust can be further reduced by providing the dust suction fan 63.

  7 is an overall view of the combine according to the third embodiment, FIG. 8 is an overall left side view, and FIG. 9 is a side view of the periphery of the operating unit 7. FIG. 7 is a perspective view of the combine according to the present embodiment as viewed from the left front, and FIG. 9 is a side view of the combine as viewed from the left. In the combine according to the first and second embodiments, the operating unit 7 is a cabin, whereas the combine of the present embodiment is provided with a tent 71 for blocking sunlight above the operating unit 7. Is different. In the present embodiment, the tent 71 is supported by an angle support arm 72 extending from the rear of the Glen tank that constitutes the storage unit 6 and two auxiliary arms 75 and 75 provided at the rear of the operation unit 7. The tent 71 has a configuration that can be adjusted to a height at which the operator can work while the operator 7 is seated or standing in the driving unit 7, and the support point of the angle support arm 72 provided at the rear of the Glen tank moves back and forth. Thus, the angle of the tent 71 is adjusted. With this configuration, the operator can adjust the angle of the tent 71 from the rear of the machine body, and the tent 71 can be easily stored when the entire machine body is covered at the end of the work.

  FIG. 10 is an overall left side view of the combine according to the fourth embodiment, and FIG. 11 is an overall left side view of the combine according to the fifth embodiment. In the fourth embodiment, the tent 71 is supported by the auxiliary arms 75, 75, provided with an adjustment chain 73 for adjusting the angle, and the angle of the tent 71 can be adjusted from the rear of the machine body. In the fifth embodiment, in addition to the angle support arm 72 and the auxiliary arms 75, 75, a rear support arm 74 provided on the support frame of the rotating shaft of the Glen tank provided at the rear of the Glen tank is provided. The angle support arm 72 is coupled to the base plate. With this configuration, the angle of the tent 71 can be adjusted smoothly.

  12 is a side view of the traveling portion 3 of the combine according to the sixth embodiment, FIG. 13 is a front sectional view of the traveling portion 3 of the combine according to the sixth embodiment, and FIG. A partially enlarged view is shown. 12 is a view of the left traveling unit 3 as viewed from the left, FIG. 14 is a cross-sectional view of the front portion of the left traveling unit 3, and FIG. 14 is a crawler drive that constitutes the crawler 84. It is a side view around the sprocket 81.

  The traveling unit 3 is a crawler 84. In the crawler 84 according to this embodiment, the crawler drive sprocket 81 and the first crawler roller 82 are coupled by a connecting rod 83. With this configuration, when the vehicle exceeds a ridge or travels on a rough road, the frictional force of the crawler 84 is easily transmitted to the field scene, and the traveling performance is improved. Vibration and noise at the time can be reduced. At this time, as shown in FIG. 14, the connecting rod 83 can be a turnbuckle 85 having screw coupling portions in different directions at both ends. With this configuration, the length of the connecting rod 83 can be easily finely adjusted.

  The distance between the connecting point of the connecting rod 83 and the crawler drive sprocket 81 and the rotation center of the crawler drive sprocket 81 is about half the pitch circle radius of the crawler drive sprocket 81, and the connecting rod 83 and the crawler drive sprocket 81. The distance between the coupling point with the first roller 82 and the rotation center of the crawler first roller 82 is about half the pitch circle radius of the crawler first roller 82. The connecting rod 83 is provided as close as possible to the crawler driving sprocket 81 and the crawler first roller 82. With this configuration, the transmission of the driving force by the connecting rod 83 is stabilized, and the allowable value for production error can be increased. Further, the amount of mud accumulated in the connecting rod 83 can be reduced. The connecting rod 83 is provided symmetrically on both the left and right crawlers 84, 84.

DESCRIPTION OF SYMBOLS 1 Combine 2 Airframe frame 3 Traveling part 4 Mowing part 5 Threshing part 6 Storage part 7 Driving part 9 Transport part 30 Second endless belt transmission part 31 Rearmost transmission pulley 32 Opposite transmission pulley 33 Tension clutch mechanism 52 Driven sprocket 53 Chain 54 fixation Idler 55 Tension idler 56 Transport unit input shaft 57 Transport unit support member E Engine

Claims (5)

A cutting part (4) is provided on the front side of the body frame (2) supported by the traveling part (3),
A threshing part (5) is provided on the left and right sides of the body frame (2), and a storage part (6) is provided on the left and right sides.
A driving part (7) is provided on the front side of the storage part (6),
An engine (E) is provided below the operating unit (7),
In the combine provided with the transport unit (9) for transporting the cereals from the mowing unit (4) to the threshing unit (5),
Of the cutting power transmission unit that transmits power from the engine (E) to the transport unit (9),
A chain transmission unit that directly transmits power to the conveyance unit input shaft (56) of the conveyance unit (9);
While providing between the threshing part (5) and the storage part (6),
The combine characterized in that idlers are arranged at the respective portions so that both the slack side line and the tension side line of the chain (53) constituting the chain transmission portion are bent upward. The idler,
A stationary idler (54) that constitutes the chain transmission section and that does not change in relative position with a driven sprocket (52) that is fixed to the transport section input shaft (56);
A tension idler (55) for applying tension to the chain (53),
The combine according to claim 1, wherein the tension idler (55) is arranged on the inner peripheral side of the circulation line of the chain (53).   The combine according to claim 2, wherein the fixed idler (54) is provided on a conveyance unit support member (57) that supports the conveyance unit input shaft (56). The mowing power transmission part
Consists of two or more endless belt transmission parts,
Among the transmission pulleys constituting these endless belt transmission parts, the rearmost transmission pulley (31) located at the rearmost position,
An opposing transmission pulley (32) that constitutes an endless transmission section together with the rearmost transmission pulley (31), and
The combine according to any one of claims 1 to 3, wherein the opposing transmission pulley (32) is positioned below the rearmost transmission pulley (31). Of the two or more endless belt transmissions, the second endless belt transmission (30) that transmits power from the engine (E) secondly,
The combine according to claim 4, further comprising a tension clutch mechanism (33).