TW202116145A - Combined harvester - Google Patents

Abstract

Disclosed is a combined harvester that collects dust flying from an auger device of a mowing pretreatment device to a control unit and exhausts air of a control unit heated by an engine to the outside. The mowing pretreatment device (3) includes a feeder house (3D) for transporting the harvested stalks to a threshing device (4); and a dust suction fan (40) is provided on the upper side of a casing (10) of the feeder house (3D) for directing the air supply direction to the left and right; when the mowing pretreatment device (3) is lifted to a predetermined standby position, the dust suction fan (40) is located above a side panel (5B) of the control unit (5).

Description

Combine harvester

The present invention relates to a combine harvester provided with a harvesting pretreatment device.

In the past, the following technology has been known. In order to collect dust raised in the grain feeding screw device of the harvesting pretreatment device and to discharge the dust accumulated in the feeding chamber to the outside, the right wall of the frame of the feeding chamber A suction fan is installed, and a dust suction port is installed on the left wall of the frame of the feeding chamber (Patent Document 1). [Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2012-115161 A.

[The problem to be solved by the invention]

However, in the technique disclosed in Patent Document 1, there is a potential risk of deterioration of the operating environment of the operating unit due to dust flying from the grain-introducing screw device of the harvesting pretreatment device to the operating unit. In addition, there is also a potential risk of deterioration of the operating environment due to an increase in the temperature of the operating unit due to the air heated by the engine.

Therefore, the subject of the present invention is to provide a combine harvester that can collect dust flying from the grain-intake screw device of the harvesting pre-processing device to the control unit, and the air in the control unit heated by the engine can be collected to the outside. Exhaust. [Means to solve the problem]

The present invention for solving the above-mentioned problems is as follows. The invention of claim 1 is a combine harvester, which is installed on the front side of the machine body frame (1) with a harvesting pretreatment device (3) for harvesting grain stalks of farmland. The threshing device (4) for threshing the harvested grain stalks is provided with a control unit (5) for the operator to board on the right side of the rear and right side of the harvesting pretreatment device (3), and a loading unit (5) is provided below the control unit (5). The engine room (6) of the engine; the harvesting pretreatment device (3) is equipped with a feeding chamber (3D) that transports the harvested grain stalks to the threshing device (4); in the frame (10) of the feeding chamber (3D) ) Is provided with a dust suction fan (40) whose blowing direction faces the left and right directions; when the harvesting pre-processing device (3) is raised to a predetermined standby position, the dust suction fan (40) is located in the operating part (5) The side panel (5B) is above.

The invention of claim 2 is based on claim 1, in a plan view, the dust suction fan (40) is provided on the right front part of the upper wall of the frame (10).

In the invention of claim 3, on the basis of claim 1 or claim 2, a first rotating shaft (13) for driving the output rotation of the engine and extending in the left and right direction is provided in the middle part of the feed chamber (3D) in the front and rear direction. ; A second rotating shaft (41) extending in the left-right direction is rotatably provided on the upper part of the aforementioned fixing member (50); in the aforementioned first rotating shaft (13), it is more to the right than the right wall of the feeding chamber (3D) The extended part supports the first pulley (43); the suction fan (40) is supported on the left part of the second rotating shaft (41), and the second pulley (40) is supported on the right part of the second rotating shaft (41). 44); The belt (45) is wound on the aforementioned first pulley (43) and the aforementioned second pulley (44).

In the invention of claim 4, based on any one of claims 1 to 3, the fixing member (50) includes: a fixing portion (51) that is detachably fixed to the upper wall of the frame (10); a column portion ( 52), which extends upward from the aforementioned fixed part (51); and a cylindrical part (53), in which the aforementioned second rotating shaft (41) is embedded in the upper part of the aforementioned column part (52) and extends in the left-right direction; In a cross-sectional view, the aforementioned column portion (52) is formed in a U-shape with an open left portion. [Efficacy of invention]

According to the invention described in claim 1, the harvesting pretreatment device (3) is provided with a scraping device (3A) for scraping in and conveying the grain stalks backwards: a cutting device (3B) for cutting the roots of the conveyed grain stalks , The grain feeding screw device (3C) that gathers the conveyed grain stalks to one side and the feeding chamber (3D) that transfers the gathered grain stalks to the threshing device (4) are in the frame of the feeding chamber (3D) ( The upper wall of 10) is provided with a dust suction fan (40) supported by a fixing member (50). In a side view, when the harvesting pretreatment device (3) is raised to the standby position, the dust suction fan (40) is located It is higher than the side panel (5B) of the control part (5), so the dust flying from the valley screw device (3C) to the control part (5) of the harvesting pre-processing device (3) is collected by the dust collector (40) It is discharged to the outside of the operating part (5). In addition, the air in the operating part (5) heated by the engine is exhausted to the outside of the operating part (5) by the dust suction fan (40), which can maintain the operating part (5) well. Operating environment.

According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, in a plan view, a suction fan (40) is provided on the right front part of the upper wall of the housing (10), so that the operation can be maintained well The operating environment of section (5).

According to the invention described in claim 3, in addition to the effects of the invention described in claim 1 or 2, a first rotating shaft ( 13) A second rotating shaft (41) extending in the left-right direction is rotatably provided on the upper part of the fixing member (50), and the first rotating shaft (13) is more to the right than the right wall of the feeding chamber (3D) The extended part supports the first pulley (43), the vacuum fan (40) is supported on the left of the second rotating shaft (41), and the second pulley (44) is supported on the right of the second rotating shaft (41) , The belt (45) is wound around the first pulley (43) and the second pulley (44), so the dust suction fan (40) can be rotated by the output of the engine, and there is no need to install the dust suction fan (40) separately Rotating motors, etc.

According to the invention recited in claim 4, in addition to the effects of the invention recited in any one of claims 1 to 3, the fixing member (50) includes a fixing portion (51) that is detachably fixed to the upper wall of the frame body (10) Column part (52), which extends upward from the fixed part (51); and a cylinder part (53), in which the second rotating shaft (41) is embedded in the upper part of the column part (52) and extends in the left-right direction In the case of a cross-sectional view, the column portion (52) is formed into a U-shape with an open left portion, so the fixing member (50) is formed to be light and high rigid, which can prevent deformation of the fixing member (50).

As shown in Figures 1 to 3, the universal combine harvester is provided on the lower side of the body frame 1 with a traveling device 2 composed of a pair of left and right crawlers that travels on the soil surface, and the front side of the body frame 1 is provided with grain for harvesting farmland. The harvesting pre-processing device 3 of the harvesting device 3 is provided with a threshing device 4 for threshing and screening the harvested grain stalks on the left side of the rear of the harvesting device 3, and a threshing device 4 is provided for the operator to board on the right side of the rear of the harvesting device 3的管理部5.

A front panel 5A on which an operating lever and the like are arranged is provided at the front of the operating portion 5, and a side panel 5B on which a shift lever or the like for accelerating and decelerating the traveling speed of the traveling device 2 is provided on the left portion of the operating portion 5. In addition, an engine room 6 with a built-in engine is provided at the lower part of the operating part 5, and a grain box 7 storing grains after threshing/screening is provided on the rear side of the operating part 5. On the rear side of the grain box 7 A discharge drum 8 for discharging grains to the outside is provided. The discharge tube 8 includes a vertical discharge tube which communicates with the lower part of the grain tank 7 and extends in the vertical direction, and a horizontal discharge tube which communicates with the upper part of the vertical discharge tube and extends in the front-rear direction.

The harvesting pretreatment device 3 includes: a scraping device 3A, which scrapes in and transports the grain stalks backward while raising the farmland; a cutter device 3B, which cuts the roots of the grain stalks that are transported backward; and a milling screw The device 3C is for gathering the grain stalks conveyed backward to the left; and the feeding chamber 3D is for conveying the gathered grain stalks to the threshing device 4.

As shown in Figures 4 to 7, a rotating shaft 11 extending in the left and right directions is mounted on the rear of the left and right walls of the frame 10 of the feeding chamber 3D. Sprocket (not shown). A support shaft 12 extending in the left-right direction is provided at the front part of the left wall of the frame body 10, and a second sprocket (not shown) is rotatably supported on the left part of the support shaft 12. In addition, a third sprocket (not shown) that transmits the output rotation of the engine to the scraping device 3A and the like is juxtaposed on the left side of the second sprocket in the left portion of the support shaft 12.

A rotating shaft (a “first rotating shaft” in the scope of patent application) 13 extending in the left-right direction is erected at approximately the middle portion of the left and right walls of the frame body 10. The sprocket 14 is supported on the left part of the rotating shaft 13 extending to the left from the left wall of the housing 10.

The rotating shaft 13 is built in a cylindrical cylindrical body 13A extending in the left-right direction via a bearing 13B. Thereby, it is possible to prevent the grain stem transferred in the frame 10 from being entangled with the rotating shaft 13.

The base of the arm 15A of the tension arm 15 is rotatably supported at a position on the right side of the sprocket 14 of the left part of the rotating shaft 13 extending to the left from the left wall of the frame body 10. The tension arm 15 is formed of an arm 15A and a sprocket 15B rotatably supported at the tip of the arm 15A.

In the middle part of the front-rear direction of the arm 15A, the rear part of the urging mechanism 16 which consists of a spring etc. is connected. The front part of the booster mechanism 16 is fixed to the upper part of the left wall of the frame body 10. The tension arm 15 is set in a posture that the rear part is tilted upward, and the booster mechanism 16 is set in a posture that the rear part is tilted downward. The arm 15A of the tension arm 15 and the booster mechanism 16 are connected at a crossing angle of approximately 90 degrees.

An idler wheel 17 is provided on the lower front side of the left wall of the frame body 10, and an idler wheel 18 and an idler wheel 19 are provided on the lower part of the left wall of the frame body 10 on the rear side of the rotating shaft 13.

The chain 20 is wound around the first sprocket, the sprocket 15B, the sprocket 14, the second sprocket, the idler 17, the idler 18, and the idler 19.

Thereby, the drive chain 20 rotates the output of the engine to the scraping device 3A, etc., so that the rotating shaft 13 can be rotated. In addition, the tension of the chain 20 is adjusted to an appropriate tension by the tension arm 15, and the idler pulley 17 to the idler pulley 19 suppress the meandering of the chain 20 in the left-right and up-down directions.

The left wall of the frame 10 is detachably provided with a cover 21 covering the sprocket 14, the tension arm 15, the chain 20, and the like. Thereby, the operator can be prevented from touching the chain 20 and the like.

The rotating body 22 is supported at a portion of the rotating shaft 11 located inside the housing 10, and a left sprocket 23A and a right sprocket 23B are arranged side by side at a predetermined interval in the left-right direction on the outer peripheral portion of the rotating body 22. In addition, in this specification, the left sprocket 23A and the right sprocket 23B are collectively referred to as a rear sprocket.

A rotating shaft 25 extending in the left-right direction is erected on the front part of the left and right walls of the frame body 10. A rotating body 26 is supported at a portion of the rotating shaft 25 located inside the frame body 10, and the outer periphery of the rotating body 26 is hollow in the left-right direction. The left sprocket 27A and the right sprocket 27B are arranged side by side at a predetermined interval. In addition, in this specification, the left sprocket 27A and the right sprocket 27B are collectively referred to as the front sprocket.

The left plate chain 28A is wound around the left sprocket 23A and the left sprocket 27A, and the right plate chain 28B is wound around the right sprocket 23B and the right sprocket 27B. In addition, the left plate chain 28A and the right plate chain 28B are provided with slats 29 formed in a substantially U shape at predetermined intervals in the front-rear direction. Thereby, the grain stem conveyed from the grain feeding screw 3C to the feed chamber 3D can be efficiently transferred to the rear, and can be conveyed to the threshing apparatus. In addition, in this specification, the left plate chain 28A and the right plate chain 28B are collectively referred to as a plate chain.

As shown in FIGS. 8 and 9, a dust suction fan 40 is provided on the right front part of the upper wall of the housing 10. With this, when the feeding chamber 3D is raised to the standby position, in a side view, the dust suction fan 40 can be moved to the upper side than the side panel 5B of the operating portion 5, so the dust suction fan 40 can be scattered to The dust in the operating portion 5 is sucked and discharged to the outside of the operating portion 5, and the air in the operating portion 5 can be sucked to cause convection, and the hot air in the operating portion 5 can be released to the outside.

The dust suction fan 40 is supported by a fixing member 50, and the fixing member 50 is detachably fixed to a plate 30 provided so as to cover the front part of the upper wall of the housing 10.

In the front view, the plate 30 is formed into a substantially U-shaped shape with an opening on the lower side. The left leg extending in the vertical direction of the plate 30 is detachably fixed to the left wall of the frame 10, and the right extending in the vertical direction of the plate 30 The feet are detachably fixed to the right wall of the housing 10.

The fixing member 50 includes: a rectangular fixing portion 51 that is detachably attached to the upper surface of the plate 30; a column portion 52 is formed on the right portion of the upper surface of the fixing portion 51 and extends in the vertical direction; and a cylindrical shape The cylindrical portion 53 is formed on the upper portion of the column portion 52 and extends in the left-right direction.

The shape of the column part 52 in a transverse cross-sectional view is formed into a substantially U-shape that is open on the left side. Thereby, the column part 52 is lightweight and has high rigidity, and it is possible to prevent the column part 52 from being deformed.

In a front view, the lower portion of the column portion 52 is formed to be inclined downward to the left, that is, formed to extend to the left as it goes to the lower side. In addition, in the left side view, the fixed portion 51 and the lower portion of the column portion 52 are connected by a rib 54 having a substantially triangular shape. Thereby, the rigidity of the lower part of the column part 52 is improved, and the deformation of the lower part of the column part 52 can be prevented further.

A support shaft 55 extending in the left-right direction that rotatably supports a tension arm 46 to be described later is provided in the middle part of the right surface of the column part 52 in the vertical direction.

A circular plate 57 that detachably fixes a fan cover 56 covering the outer periphery of the dust suction fan 40 is provided on the left part of the tube 53 and a support part for supporting a belt cover 48 described later is provided on the right of the tube 53 58.

The fan cover 56 is formed of a cylindrical box portion 56A, a circular mounting portion 56B provided at the right end of the box portion 56A, and three arm portions 56C connecting the mounting portion 56B and the box portion 56A.

The diameter of the plate 57 of the fixture 50 and the diameter of the attachment portion 56B of the fan cover 56 are formed to be smaller than the diameter of the circular base of the blade of the dust suction fan 40 that is radially erected. Thereby, the board 57 etc. do not become an obstruction, and it can prevent that the dust collection efficiency of the dust collection fan 40 falls.

In addition, in the left side view, the column portion 52 of the fixing member 50 and the one arm portion 56C of the fan cover 56 are provided at positions facing each other. Thereby, the column part 52 does not become an obstruction, and the reduction of the dust collection efficiency of the dust collection fan 40 can be prevented further.

The base part of the dust suction fan 40 is detachably fixed to the left part of the rotating shaft ("second rotating shaft" in the scope of patent application) 41 extending in the left-right direction. The rotating shaft 41 is rotatably fitted in the cylindrical portion 53 via the bearing 42.

A pulley ("first pulley" in the scope of patent application) 43 is supported on the right portion of the rotating shaft 13 provided in the feeding chamber 3D, and a pulley ("first pulley" in the scope of patent application) is supported on the right portion of the rotating shaft 41 The second pulley ") 44, the belt 45 is wound around the pulley 43 and the pulley 44. Thereby, the output rotation of the engine is transmitted to the dust suction fan 40 via the rotating shaft 13, the belt 45, etc., and the dust suction fan 40 can be rotated.

The tension of the belt 45 is adjusted to a predetermined tension by the tension arm 46. The tension arm 46 is formed of an arm 46A whose base is rotatably supported by a support shaft 55 and a pulley 46B that is rotatably supported by the front end of the arm 46A.

The pulley 46B of the tension arm 46 is pressed against the belt 45 by an urging mechanism 47 such as a spiral spring attached to the support shaft 55. The upper end of the urging mechanism 47 is engaged with the cylindrical portion 53, and the lower end of the urging mechanism 47 is engaged with the arm 46A. Thereby, the tension of the belt 45 is maintained at an appropriate tension, and it is possible to prevent the belt 45 from falling off from the pulley 44 and the like.

A belt cover 48 is provided on the right side of the belt 45, that is, on the side of the manipulation portion 5, and covers the pulley 43, the pulley 44, and the belt 45 from the right side. Thereby, it is possible to prevent the operator from removing the belt 45 and the like, thereby improving safety. In addition, the upper part of the belt cover 48 is supported by the support part 58 provided in the cylindrical part 53.

As shown in FIG. 10, the base of the arm 46A of the tension arm 46 is externally fitted to the tube 53 rotatably, and fixed rings 59 such as C-rings are provided on both sides of the base of the arm 46A to restrict movement in the left-right direction. Thereby, there is no need to separately form a member for supporting the arm 46A of the tension arm 46, and the number of parts can be reduced.

1: Body frame 2: Driving device 3: Harvesting pretreatment device 3A: Scratch-in device 3B: Cutter device 3C: Spiral device into the valley 3D: feeding room 4: Threshing device 5: Control part 5A: Front panel 5B: Side panel 6: Engine room 7: Grain box 8: Discharge cylinder 10: Frame 11: Rotation axis 12: Pivot 13: Rotation axis (first rotation axis) 13A: Barrel 13B: Bearing 14,15B: Sprocket 15: Tension arm 15A: Arm 16,47: Afterburner 17,18,19: idler 20: chain 21: Hood 22: Rotating body 23A, 27A: Left sprocket 23B, 27B: right sprocket 25, 41: Rotation axis 26: Rotating body 28A: Left plate chain 28B: Right plate chain 29: Slat 30: Board 40: Vacuum fan 41: Rotation axis (second rotation axis) 42: Bearing 43: pulley (first pulley) 44: pulley (second pulley) 45: belt 46: Tension arm 46A: Arm 46B: Pulley 48: with hood 50: fixed parts 51: fixed part 52: Column 53: Tube 54: stiffener 55: fulcrum 56: Fan cover 56A: Box Department 56B: Installation Department 56C: Arm 57: Board 58: Support 59: fixed ring

[Figure 1] is a top view of the combine harvester. [Figure 2] is a left side view of the combine harvester. [Figure 3] is a front view of the combine harvester. [Figure 4] is a left side view of the feeding chamber. [Fig. 5] is a front view taken along the longitudinal section in the left-right direction of the feeding chamber. [Figure 6] is a right side view of the feeding chamber. [Fig. 7] is a left side view of a longitudinal section in the front-rear direction of the feeding chamber. [Fig. 8] is a front view of a feed chamber equipped with a dust suction fan in a longitudinal cross-sectional view in the left-right direction. [Fig. 9] is a left side view of the feeding chamber equipped with a dust suction fan. [Fig. 10] is a front view of another tension arm.

10: Frame

13: Rotation axis (first rotation axis)

13A: Barrel

13B: Bearing

14: Sprocket

15: Tension arm

30: Board

40: Vacuum fan

41: Rotation axis (second rotation axis)

42: Bearing

43: pulley (first pulley)

44: pulley (second pulley)

45: belt

46A: Arm

46B: Pulley

47: Afterburner

48: with hood

50: fixed parts

51: fixed part

52: Column

53: Tube

54: stiffener

55: fulcrum

56: Fan cover

57: Board

58: Support

Claims (4)

A combine harvester is provided with a harvesting pretreatment device (3) for harvesting farmland stalks on the front side of a machine body frame (1), and the harvested stalks are arranged on the left side of the rear and left side of the foregoing harvesting pretreatment device (3) The threshing device (4) for threshing is provided with a manipulation part (5) for the operator to board on the right side of the rear of the aforementioned harvesting pretreatment device (3), and an engine room equipped with an engine is provided below the manipulation part (5) (6); The aforementioned harvesting pretreatment device (3) is provided with a feeding chamber (3D) that transports the harvested grain stalks to the aforementioned threshing device (4); On the upper side of the frame (10) of the aforementioned feeding chamber (3D) is provided a dust suction fan (40) whose blowing direction faces the left and right directions; When the harvesting pre-processing device (3) is raised to a predetermined standby position, the dust suction fan (40) is located above the side panel (5B) of the manipulation part (5). The combine harvester described in claim 1, wherein in a plan view, the dust suction fan (40) is provided on the right front part of the upper wall of the frame body (10). The combine harvester described in claim 1 or 2, wherein a first rotating shaft (13) for driving the output rotation of the engine and extending in the left-right direction is provided in the middle part of the feed chamber (3D) in the front-rear direction ； A second rotating shaft (41) extending in the left-right direction is rotatably provided on the upper part of the fixing member (50); The first pulley (43) is supported at a part of the aforementioned first rotating shaft (13) that extends more to the right than the right wall of the feeding chamber (3D); Supporting the dust suction fan (40) on the left part of the aforementioned second rotating shaft (41), and supporting the second pulley (44) on the right part of the aforementioned second rotating shaft (41); A belt (45) is wound around the first pulley (43) and the second pulley (44). The combine harvester described in any one of claims 1 to 3, wherein the fixing member (50) includes: a fixing part (51), which is detachably fixed to the upper wall of the aforementioned frame body (10); a column part ( 52), which extends upward from the aforementioned fixed portion (51); and a cylindrical portion (53) in which the aforementioned second rotating shaft (41) is embedded in the upper part of the aforementioned column portion (52) and extends in the left-right direction; In the case of a cross-sectional view, the aforementioned column portion (52) has a U-shape with an open left portion.

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