Combine

The combine harvester integrates a belt presser with a gripping portion to prevent the discharge conveyor drive belt from disengaging during grain tank rotation, eliminating the need for a dedicated gripping member and improving operational efficiency and maintenance accessibility.

JP2025147797APending Publication Date: 2025-10-07YANMAR HLDG CO LTD
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Patent Information

Application Number
JP2024048223
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-25
Publication Date
2025-10-07

AI Technical Summary

Technical Problem

The combine harvester described in Patent Document 1 requires a gripping member for rotating the grain tank, necessitating additional space and components.

Method used

The combine harvester incorporates a belt presser with a gripping portion that is fixed to the grain tank or input side case, preventing the discharge conveyor drive belt from coming off the input pulley during grain tank rotation, eliminating the need for a dedicated gripping member.

Benefits of technology

This configuration allows for the omission of a dedicated gripping member, simplifying the operation and reducing the required space for rotating the grain tank, thereby enhancing operational efficiency and ease of maintenance.

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Abstract

To omit a gripping member that is gripped when moving a grain tank.SOLUTION: A travelling machine body 1a is mounted with an engine 7. The grain tank 6 is provided with a bottom part conveyor 60 inside and can be moved with respect to the travelling machine body 1a. An input side case part 161 includes an input pulley 166 fixed to a front side of the grain tank 6 and connected to the bottom part conveyor 60. A discharge conveyor 62 is provided on a rear surface side of the grain tank 6, and is connected to the bottom part conveyor 60. A discharge conveyor driving belt 157a is provided in a tensioned state between the engine 7 and the input pulley 166. A belt presser body 200 inhibits the discharge conveyor driving belt 157a from being separated from the input pulley 166. The belt presser body 200 includes a grip part 230 gripped when moving the grain tank 6. The belt presser body 200 is fixed to the grain tank 6 or the input side case part 161.SELECTED DRAWING: Figure 6
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Description

[Technical Field]

[0001] The present invention relates to a combine harvester. [Background technology]

[0002] Patent Document 1 discloses a combine harvester equipped with a grain tank that removes grains from a threshing device. In the combine harvester, the grain tank is rotated outward from the machine body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-172536 Summary of the Invention [Problem to be solved by the invention]

[0004] The combine harvester described in Patent Document 1 is provided with a gripping member that the operator holds when rotating the grain tank. Therefore, not only is the gripping member necessary, but space is also required to place the gripping member.

[0005] The present invention aims to eliminate the need for a gripping member that is gripped when rotating the grain tank. [Means for solving the problem]

[0006] The combine harvester of the present invention comprises a traveling body, a grain tank, an input side case, a discharge conveyor, a discharge conveyor drive belt, and a belt presser. The traveling body is equipped with an engine. The grain tank has a bottom conveyor installed therein and is movable relative to the traveling body. The input side case is fixed to the front side of the grain tank and has an input pulley connected to the bottom conveyor. The discharge conveyor is provided on the rear side of the grain tank and connected to the bottom conveyor. The discharge conveyor drive belt is stretched between the engine and the input pulley. The belt presser prevents the discharge conveyor drive belt from coming off the input pulley. The belt presser has a gripping portion that is gripped when moving the grain tank. The belt presser is fixed to the grain tank or the input side case. [Effects of the Invention]

[0007] According to the present invention, it is possible to omit the gripping member that is gripped when moving the grain tank. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a left side view of the combine harvester according to the embodiment. [Figure 2] FIG. 2 is a right side view of the combine harvester according to the embodiment. [Figure 3] FIG. 1 is a plan view of a combine harvester according to an embodiment. [Figure 4] FIG. 2 is a right side view of the grain tank according to the embodiment. [Figure 5] FIG. 2 is a side view of an input pulley and an engine according to the embodiment. [Figure 6] FIG. 2 is a perspective view of an input pulley and an engine according to the embodiment. [Figure 7] FIG. 2 is a rear view of the grain tank according to the embodiment. [Figure 8] FIG. 2 is a front view of the grain tank according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the accompanying drawings, in which the same or corresponding parts are designated by the same reference numerals and will not be described repeatedly.

[0010] A combine harvester 1 according to an embodiment will be described with reference to FIGS. 1 to 8. FIG.

[0011] First, the basic structure of a combine harvester 1 according to an embodiment will be described with reference to Figures 1 to 4. Figure 1 is a left side view of the combine harvester 1, Figure 2 is a right side view of the same, and Figure 3 is a plan view of the same. Figure 4 is a right side view of the grain tank 6. In the following description, the left side as viewed in the forward direction of the combine harvester 1 will be referred to as the left, and the right side as viewed in the forward direction will be referred to as the right. The right direction is an example of a "first direction." The upward direction is an example of a "second direction." In this specification, a "parallel direction" includes a substantially parallel direction, and a "perpendicular direction" includes a substantially perpendicular direction.

[0012] The combine harvester 1 comprises a traveling body 1a supported by a pair of left and right rubber crawler tracks 2. A reaping unit 3 is connected to the front of the traveling body 1a, and harvests and collects unharvested stalks of rice and other crops. The harvesting target of the reaping unit 3 is not limited to rice, but can also be a variety of crops such as wheat, soybeans, and corn.

[0013] A threshing unit 9 is mounted on the left side of the traveling body 1a for threshing the harvested stalks supplied from the reaping unit 3. A grain sorting mechanism 10 is located below the threshing unit 9, which performs shaking sorting and wind sorting of the threshed grain. A driver's cab 5, on which an operator sits, is mounted on the right front side of the traveling body 1a. An engine 7 is located below the driver's cab 5 as a power source. The engine 7 is, for example, a diesel engine. A grain tank 6 is mounted on the right side of the traveling body 1a and behind the driver's cab 5, for storing grain threshed by the threshing unit 9. A grain discharge conveyor 8 is provided above the grain tank 6 and the threshing unit 9, which discharges grain stored in the grain tank 6 to the outside.

[0014] The reaping section 3 comprises a feeder house 11 connected to the handling port 9a at the front of the threshing section 9, and a horizontally long bucket-shaped grain header 12 connected to the front end of the feeder house 11. A raking auger 13 is rotatably supported inside the grain header 12. A raking reel 14 is arranged above the front of the raking auger 13. A clipper-shaped cutting blade 15 is arranged at the front of the grain header 12. Grass dividing bodies 16 are provided on both the left and right sides of the front of the grain header 12. A supply conveyor 17 is also provided inside the feeder house 11. A bead 18 for feeding harvested stalks is provided at the feeding end of the supply conveyor 17, i.e., on the handling port 9a side.

[0015] The underside of the feeder house 11 and the front end of the traveling body 1a are connected via a lifting hydraulic cylinder 4. The reaping unit 3 is raised and lowered by the lifting hydraulic cylinder 4, with the reaping input shaft 19 as the lifting fulcrum.

[0016] With the above configuration, the tip side of the uncut culms between the left-hand and right-hand grass segments 16 is raked in by the raking reel 14, and the base side of the uncut culms is cut by the cutting blade 15. The cut culms cut by the cutting blade 15 are collected near the feeder house 11 by the rotation of the raking auger 13, transported by the supply conveyor 17, and fed into the threshing opening 9a of the threshing section 9 by the cut culm feeder 18.

[0017] Inside the threshing section 9, a threshing drum 21 is rotatably supported by a threshing drum shaft 20. The threshing drum 21 rotates by the power of the engine 7. A receiving net 24 is stretched below the threshing drum 21 to allow grain to escape. On the outer peripheral surface of the front part of the threshing drum 21, screw-blade-shaped intake blades 25 are provided to protrude radially outward.

[0018] With the above configuration, the harvested stalks fed into the threshing opening 9a by the harvested stalk feeding bead 18 are transported toward the rear of the traveling body 1a by the rotation of the threshing drum 21, and are mixed and threshed between the threshing drum 21 and the receiving net 24. Grains and other threshed grains that are smaller than the mesh size of the receiving net 24 leak through the receiving net 24. Straw chips and other processed material that do not leak through the receiving net 24 are transported to the rear of the threshing section 9 as the threshing drum 21 rotates, and are discharged into the field from the dust discharge section 23.

[0019] The grain sorting mechanism 10, located below the threshing drum 21, includes a oscillating sorting plate 26 for gravity sorting, a fan-shaped winnowing machine 29, a first conveyor mechanism 30, and a second conveyor mechanism 31. The removed grain that has leaked through the receiving net 24 is sorted into grains (first grade, such as refined grains), a mixture of grains and straw (second grade, such as grains with stalks), and straw chips by the gravity sorting action of the oscillating sorting plate 26 and the wind sorting action of the winnowing machine 29.

[0020] The grains (first grain) that fall from the oscillating sorting board 26 are transported to the grain tank 6 by the first conveyor mechanism 30 and the grain lifting conveyor 32. The mixture of grains and straw (second grain) is returned to the sorting start end of the oscillating sorting board 26 via the second conveyor mechanism 31 and the second return conveyor 33, etc., and is sorted again by the oscillating sorting board 26. Straw chips and the like are discharged into the field from the dust discharge section 23 at the rear of the traveling body 1a.

[0021] The right end of an auger drive input shaft 158 ​​is connected to the output shaft 165 of the engine 7 via a tension pulley 156 serving as an auger clutch and discharge conveyor drive belts 157a and 157b. The front end of a lateral feed auger 60 installed inside the bottom of the grain tank 6 is connected to the left end of the auger drive input shaft 158 ​​via a bevel gear mechanism (not shown). The lateral feed auger 60 is an example of a "bottom conveyor." The rear end of the lateral feed auger 60 is connected to the vertical feed auger 62 and grain discharge auger 64 of the grain discharge conveyor 8 via a bevel gear mechanism 61. The vertical feed auger 62 is an example of a "discharge conveyor."

[0022] The grain discharge auger 64 is supported so that it can be raised and lowered by an auger lifting hydraulic cylinder 55. By operating a grain discharge lever (not shown) provided on the driver's cab 5, the auger lifting hydraulic cylinder 55 is activated and the rice dumping opening of the grain discharge auger 64 is raised and lowered to the desired height. The electric motor 65 rotates the grain discharge auger 64 horizontally together with the vertical feed auger 62, moving the rice dumping opening left and right. With the above configuration, the grain stored in the grain tank 6 can be discharged into a truck bed, a container, etc.

[0023] The driver's cab 5 is provided with a steering column 41 and a driver's seat 42. The steering column 41 is provided with an accelerator lever 40, a steering handle 43, a main speed change lever 44, an auxiliary speed change lever 45, a reaping clutch lever 46, and a threshing clutch lever 47. The accelerator lever 40 adjusts the engine 7 RPMs. The steering handle 43 changes the course of the traveling machine body 1a. The main speed change lever 44 and the auxiliary speed change lever 45 change the traveling speed of the traveling machine body 1a. The reaping clutch lever 46 drives or stops the reaping unit 3. The threshing clutch lever 47 drives or stops the threshing unit 9. A sunshade roof 49 is attached to the front upper surface of the threshing unit 9 via a sun visor support 48. The roof 49 covers the upper side of the driver's cab 5.

[0024] Left and right track frames 50 are arranged on the underside of the traveling vehicle body 1a. The track frame 50 is provided with a drive sprocket 51, a tension roller 52, multiple track rollers 53, and an intermediate roller 54. The drive sprocket 51 supports the front side of the crawler belt 2 and transmits power from the engine 7 to the crawler belt 2. The tension roller 52 supports the rear side of the crawler belt 2 and maintains the tension of the crawler belt 2. The track roller 53 keeps the ground-contact side of the crawler belt 2 in a ground-contact state. The intermediate roller 54 supports the non-ground-contact side of the crawler belt 2.

[0025] Next, the drive structure of the grain discharge conveyor 8 will be described with reference to Figures 4 to 6. Figure 5 is a side view of the input pulley 166 and the engine 7 in the embodiment. Figure 6 is a perspective view of the input pulley 166 and the engine 7 in the embodiment. As shown in Figures 4 to 6, the combine harvester 1 further includes an input side case portion 161 as a bevel input side case in which a bevel gear mechanism (not shown) on the input side of the traverse auger 60 is installed, and a relay case 162 in which the bevel gear mechanism 61 on the output side of the traverse auger 60 is installed.

[0026] A support plate 163 is fastened to the outer front surface of the front wall of the grain tank 6. An input side case part 161 is fixed to the lower part of the outer front surface of the grain tank 6 via the support plate 163, and a transfer case 162 is connected to the lower part of the rear surface of the grain tank 6 via an outlet side case 164, and a cross-feed auger 60 is arranged between the input side case part 161 and the transfer case 162 so as to be freely rotatable.

[0027] The combine harvester 1 further includes an intermediate pulley 151, a tension pulley 156, and a tension pulley 159. The intermediate pulley 151 is disposed between an input pulley 166 and an output pulley 169. The intermediate pulley 151 is journaled on a rotary shaft 152 provided on the traveling body 1a. A discharge conveyor drive belt 157b is tensioned between the intermediate pulley 151 and an output pulley 169 journaled on an output shaft 165 of the engine 7, via the tension pulley 159. In addition, a discharge conveyor drive belt 157a is tensioned between the intermediate pulley 151 and an input pulley 166 of the input side case portion 161, via the tension pulley 156.

[0028] The input pulley 166 is journaled on an auger drive input shaft 158 ​​that protrudes rightward from the right side surface of the input side case portion 161. The auger drive input shaft 158 ​​is an example of a "rotating shaft."

[0029] The combine harvester 1 further includes a tension arm 171 and a grain discharge lever 155.

[0030] The base end side of the tension arm 171 is rotatably supported on the rotary shaft 152. The tip end side of the tension arm 171 supports a tension pulley 156 via a tension pulley shaft 170.

[0031] The tension pulley shaft 170 is connected to a grain discharge lever 155 via a tension spring 185. The grain discharge lever 155 operates to turn the tension pulley 156 on and off. In detail, the grain discharge lever 155 is disposed on the outer right front side of the grain tank 6, and the operating portion of the grain discharge lever 155 protrudes behind the operator's seat 42, so that the operator can operate the grain discharge lever 155 from the operator's seat 42. As a result, the operator switches the grain discharge lever 155 between a clutch-on state in which the discharge conveyor drive belt 157a is tensioned, and a clutch-off state in which the discharge conveyor drive belt 157a is loosened.

[0032] Here, with reference to Figures 4 and 7, opening the installation portion of the grain tank 6 will be described. Figure 7 is a rear view of the grain tank 6 in the embodiment. As shown in Figures 4 and 7, the grain tank 6 is connected to the traveling body 1a so as to be rotatable around the vertical axis 193.

[0033] Specifically, the lower end of the vertical feed auger 62 is rotatably supported with respect to the traveling machine body 1a. Also, the upper end of the vertical feed auger 62 is rotatably supported with respect to the upper support frame 196. Specifically, the upper support frame 196 surrounds the vertical feed auger 62.

[0034] That is, the threshing section 9 and the grain tank 6 are mounted side by side on the traveling body 1a, and the grain tank 6 is rotatably connected to the traveling body 1a via a vertical feed auger 62.

[0035] With the above configuration, the worker switches the tension pulley 156 (auger clutch) using the grain discharge lever 155. Specifically, the worker switches the discharge conveyor drive belt 157a to a clutch-disengaged state, loosening it, and removes the discharge conveyor drive belt 157a from the input pulley 166. The worker then rotates the grain tank 6 around the vertical axis 193 toward the right outside of the traveling body 1a. As a result, the worker opens the installation area for the grain tank 6 and performs maintenance on the engine 7, etc.

[0036] Now, with reference to Figures 5, 6 and 8, opening the installation portion of the grain tank 6 will be described in detail. Figure 8 is a front view of the grain tank 6 in the embodiment. As shown in Figures 5, 6 and 8, the combine harvester 1 in the embodiment further includes a belt presser body 200. The belt presser body 200 prevents the discharge conveyor drive belt 157a from coming off the input pulley 166.

[0037] In the embodiment, the belt presser body 200 is, for example, a pipe body. In other words, the belt presser body 200 is a cylindrical body. Specifically, the belt presser body 200 has a first base end portion 211 and a first extension portion 212.

[0038] The first base end portion 211 is fixed to the input side case portion 161. Specifically, the first base end portion 211 is fixed to the front surface of the input side case portion 161 by welding. The first extension portion 212 extends in the right direction from the first base end portion 211. In other words, the first extension portion 212 extends toward the outside of the combine harvester 1.

[0039] More specifically, the first extending portion 212 is disposed above the input pulley 166 and the discharge conveyor drive belt 157a, and prevents the discharge conveyor drive belt 157a from coming off upward.

[0040] Moreover, it is preferable that the belt presser body 200 in this embodiment further includes a second base end portion 221 and a second extension portion 222.

[0041] The second base end portion 221 is fixed to the input side case portion 161. Specifically, the second base end portion 221 is fixed to the front surface of the input side case portion 161 by welding. The second extension portion 222 extends in the right direction from the second base end portion 221. In other words, the first extension portion 222 extends toward the outside of the combine harvester 1.

[0042] Specifically, the second base end 221 is disposed downwardly of the first base end 211. More specifically, the second extension 222 is disposed below the input pulley 166 and the discharge conveyor drive belt 157a, and prevents the discharge conveyor drive belt 157a from coming off downward.

[0043] The belt presser body 200 in this embodiment further includes a gripping portion 230. Specifically, the belt presser body 200 is a single member. The gripping portion 230 is gripped when the grain tank 6 is moved. That is, the belt presser body 200 in this embodiment not only prevents the discharge conveyor drive belt 157a from coming off the input pulley 166, but also grips when the grain tank 6 is moved. Specifically, the gripping portion 230 is gripped by the operator when rotating the grain tank 6 around the vertical axis 193.

[0044] As described above with reference to FIGS. 1 to 8, the combine harvester 1 according to this embodiment includes a traveling body 1a, a grain tank 6, an input side case 161, a vertical feed auger 62, a discharge conveyor drive belt 157a, and a belt presser 200. The traveling body 1a is equipped with an engine 7. The grain tank 6 has a horizontal feed auger 60 installed therein and is movable relative to the traveling body 1a. The input side case 161 is fixed to the front side of the grain tank 6 and has an input pulley 166 connected to the horizontal feed auger 60. The vertical feed auger 62 is provided on the rear side of the grain tank 6. The discharge conveyor drive belt 157a is tensioned between the engine 7 and the input pulley 166. The belt presser 200 prevents the discharge conveyor drive belt 157a from coming off the input pulley 166. The belt holder 200 has a gripping portion 230 that is gripped when moving the grain tank 6. The belt holder 200 is fixed to the grain tank 6 or the input side case portion 161. With the above configuration, it is possible to omit a dedicated gripping member that is gripped when moving the grain tank 6.

[0045] More specifically, the gripping portion 230 is positioned to the right of the first extension portion 212. In other words, the gripping portion 230 is positioned further outward from the combine harvester 1 than the first extension portion 212. With the above configuration, the operator can easily grip the gripping portion 230 when moving the grain tank 6. Furthermore, because the gripping portion 230 is away from the vertical axis line 193, the operator can rotate the grain tank 6 with less force than if the gripping portion 230 were closer to the vertical axis line 193.

[0046] Furthermore, since the first extension portion 212 is positioned above the input pulley 166 and the discharge conveyor drive belt 157a, not only is it possible to prevent the discharge conveyor drive belt 157a from coming off upward, but it is also possible to prevent the space in the front-to-back direction from becoming larger than when the first extension portion 212 is positioned off-center above the input pulley 166.

[0047] Furthermore, it is preferable that the grip portion 230 extends in the vertical direction. Specifically, the grip portion 230 is disposed between the first extension portion 212 and the second extension portion 222. In other words, the grip portion 230 connects the first extension portion 212 and the second extension portion 222. More specifically, the grip portion 230 and the input pulley 166 overlap in a side view. The grip portion 230 is supported at both ends. Furthermore, the vertical axis 193 and the grip portion 230 are parallel or approximately parallel. This configuration not only protects the input pulley 166, but also allows the operator to rotate the grain tank 6 with little force.

[0048] Furthermore, it is preferable that the gripping portion 230 is located a predetermined distance to the right from the input pulley 166. With the above configuration, the operator can avoid contact with the input pulley 166 when moving the grain tank 6. As a result, the gripping portion 230 can be held safely.

[0049] In order to facilitate understanding, the drawings are mainly diagrammatically illustrated with respect to each component, and therefore the thickness, length, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings.

[0050] (1) In the belt presser body 200 of the embodiment, the first base end portion 211 is fixed to the input side case portion 161, but this is not limited thereto. The first base end portion 211 may also be fixed to the grain tank 6.

[0051] (2) In the embodiment, the belt presser body 200 is a single member including the first base end portion 211, the first extension portion 212, the grip portion 230, the second base end portion 221, and the second extension portion 222, but is not limited to this. The grip portion may be detachably attached to the first extension portion or the second extension portion.

[0052] (3) In addition, when the grain discharge lever 155 is switched to the clutch disengagement state and the installation portion of the grain tank 6 is opened, the grain discharge lever 155 may be configured to engage with the grain tank 6 so as to maintain the installation portion of the grain tank 6 in an open state.

[0053] This application discloses the following supplementary notes, which are not intended to limit the present invention.

[0054] (Appendix 1) A running body equipped with an engine, A grain tank having a bottom conveyor installed therein and movable relative to the traveling machine body; an input case portion fixed to the front side of the grain tank and having an input pulley connected to the bottom conveyor; a discharge conveyor provided on the rear side of the grain tank and connected to the bottom conveyor; a discharge conveyor drive belt stretched between the engine and the input pulley; a belt presser that prevents the discharge conveyor drive belt from coming off the input pulley; Equipped with The belt presser has a gripping portion that is gripped when the grain tank is moved, The belt holder is fixed to the grain tank or the input side case portion of the combine.

[0055] (Appendix 2) The belt presser body is a first base end portion fixed to the input side case portion; a first extension portion extending from the first base end portion along a first direction; and the first direction intersects with the front-rear direction, the input pulley is disposed on the first direction side of the input case portion, The combine harvester described in Appendix 1, wherein the gripping portion is positioned on the first direction side of the first extension portion.

[0056] (Appendix 3) the input pulley rotates on a rotation axis aligned with the first direction, the first extension portion is disposed on a second direction side of the input pulley, The combine harvester of Appendix 2, wherein the second direction is perpendicular to the front-to-rear direction and the first direction.

[0057] (Appendix 4) The combine harvester of claim 3, wherein the gripping portion extends along the second direction.

[0058] (Appendix 5) 5. The combine harvester according to any one of claims 2 to 4, wherein the gripping portion is spaced a predetermined distance from the input pulley in the first direction.

[0059] (Appendix 6) The belt presser body is a second base end portion fixed to the input side case portion; a second extension portion extending from the second base end portion along the first direction; and A combine harvester according to any one of Supplementary Note 2 to Supplementary Note 4, wherein the gripping portion is arranged between the first extension portion and the second extension portion. [Industrial Applicability]

[0060] The present invention is applicable to both normal and head-feeding combine harvesters. [Explanation of symbols]

[0061] 1. Combine 1a Running body 2 Tracks 3 Reaping section 4. Lifting hydraulic cylinder 5. Driver's cab 6. Glentank 7 Engine 8 Grain discharge conveyor 9. Threshing Department 9a Handling port 10 Grain sorting mechanism 11 Feeder House 12 Grain Header 13 Raking Auger 14. Scraper reel 15 cutting blade 16 minute plant 17 Supply Conveyor 18 Veeder for feeding harvested grain culm 19 Mowing input shaft 20 Handling shaft 21 Thrusting body 23 Dust exhaust section 24 Receiving net 25 Intake blade 26 Swing sorting board 29 Karawinoo 30 First conveyor mechanism 31 Second conveyor mechanism 32 Grain lifting conveyor 33 Second return conveyor 40 Accelerator lever 41 Control column 42 Driver's seat 43 Control handle 44 Main gear shift lever 45 Sub-gear lever 46 Mowing clutch lever 47 Threshing clutch lever 48 Sun visor support 49 Roof body 50 truck frame 51 Drive sprocket 52 Tension roller 53 Track Roller 54 Intermediate roller 55 Auger lifting hydraulic cylinder 60 Horizontal feed auger (bottom conveyor) 62 Vertical feed auger (discharge conveyor) 64 Grain Discharge Auger 65 Electric Motor 157a Discharge conveyor drive belt 157b Discharge conveyor drive belt 158 Auger drive input shaft (rotating shaft) 161 Input side case part 166 Input pulley 200 Belt holder 211 First proximal end 212 First extension section 221 Second proximal end 222 Second Extension 230 Gripping part

Claims

1. A running body equipped with an engine, A grain tank having a bottom conveyor installed therein and movable relative to the traveling machine body; an input case portion fixed to the front side of the grain tank and having an input pulley connected to the bottom conveyor; a discharge conveyor provided on the rear side of the grain tank and connected to the bottom conveyor; a discharge conveyor drive belt stretched between the engine and the input pulley; a belt presser that prevents the discharge conveyor drive belt from coming off the input pulley; Equipped with The belt presser has a gripping portion that is gripped when the grain tank is moved, The belt holder is fixed to the grain tank or the input side case portion of the combine.

2. The belt presser body is a first base end portion fixed to the input side case portion; a first extension portion extending from the first base end portion along a first direction; and The first direction intersects with the front-rear direction of the traveling machine body, the input pulley is disposed on the first direction side of the input case portion, The combine harvester according to claim 1 , wherein the gripping portion is positioned on the first direction side of the first extension portion.

3. the input pulley rotates on a rotation axis aligned with the first direction, the first extension portion is disposed on a second direction side of the input pulley, The combine harvester according to claim 2 , wherein the second direction is perpendicular to the front-rear direction and the first direction.

4. The combine harvester according to claim 3 , wherein the gripping portion extends along the second direction.

5. The combine harvester according to claim 2 , wherein the gripping portion is spaced a predetermined distance from the input pulley in the first direction.

6. The belt presser body is a second base end portion fixed to the input side case portion; a second extension portion extending from the second base end portion along the first direction; and The combine harvester according to any one of claims 2 to 5, wherein the gripping portion is disposed between the first extension portion and the second extension portion.

Citation Information

Patent Citations

  • Structure of grain-collecting part in combine harvester

    JP2011172536A