Combine harvester

Abstract

To suppress deposition of waste straw and the like on an exhaust pipe of an exhaust-gas purification device.SOLUTION: A combine harvester 1 comprises an exhaust-gas purification device 14 that purifies exhaust gas of an engine 10 and an exhaust pipe 15 that discharges the purified exhaust gas to the outside of the machine. The exhaust-gas purification device 14 is disposed on a side portion on a threshing unit 6 side of a steering section 11, with its longitudinal direction extending along the front-rear direction. In the side view, the exhaust pipe 15 extends substantially linearly obliquely upward and rearward from the exhaust-gas purification device 14, with its tip positioned above a grain elevating device 7. Further, in the front view, a lower portion of the exhaust pipe 15 is inclined such that its upper side approaches the steering section 11, and an upper portion of the exhaust pipe 15 is inclined such that its upper side approaches the threshing unit 6.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a combine harvester equipped with an exhaust gas purification device. [Background technology]

[0002] Combine harvesters equipped with an exhaust gas purification device such as a diesel particulate filter (DPF) that removes particulate matter from the exhaust gas are known for the purpose of purifying the exhaust gas emitted from the engine. For example, Patent Document 1 discloses a combine harvester in which the exhaust gas purification device is located near the engine, and the exhaust gas purified by the exhaust gas purification device is discharged outside the machine from the bottom of the machine body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6877189 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the combine described in Patent Document 1, the exhaust pipe that discharges the exhaust gas purified by the exhaust gas purification device outside the machine is located at the bottom of the machine body, so there is a possibility that straw dust generated from the threshing section will accumulate on the exhaust pipe. [Means for solving the problem]

[0005] The present invention has been made in view of the above-mentioned circumstances and with the aim of solving these problems, and the invention of claim 1 comprises a control section arranged on one side of the machine body when viewed from the front, a threshing section arranged on the other side of the machine body when viewed from the front, a grain tank arranged behind the control section, a grain lifting device erected between the threshing section and the grain tank and transporting grains threshed by the threshing section to the grain tank, an engine arranged below the control section, an exhaust gas purification device that purifies exhaust gas from the engine, and exhaust gas purified by the exhaust gas purification device. and an exhaust pipe that discharges exhaust gases outside the machine, wherein the exhaust gas purification device is arranged on the side of the control section facing the threshing section, with its longitudinal direction running along the front-to-back direction, and the exhaust pipe, when viewed from the side, extends in a substantially straight line diagonally upward and rearward from the exhaust gas purification device, and is arranged so that its tip is located above the threshing device, and further, when viewed from the front, the lower part of the exhaust pipe is inclined so that it approaches the control section as it moves upward, and the upper part of the exhaust pipe is inclined so that it approaches the threshing section as it moves upward. In addition, the invention of claim 2 is a combine harvester as described in claim 1, further comprising an auger that transports grain in the grain tank outside the machine, and an auger holder that supports the auger in a storage position, wherein the auger holder is positioned rear of the side of the control section on the threshing section side, and the tip of the exhaust pipe is positioned rear of the auger holder and discharges exhaust gas toward the rear of the machine body. The invention of claim 3 is the combine harvester according to claim 2, characterized in that the exhaust pipe is disposed at a position lower than the auger in a stored state. The invention of claim 4 is a combine harvester as described in claim 2, further comprising an auger fixing device for fixing the auger to the auger holder, the auger fixing device being arranged in front of the auger holder. [Effects of the Invention]

[0006] According to the invention of claim 1, the exhaust pipe that discharges the exhaust gas purified by the exhaust gas purification device outside the machine is positioned so that its tip is located above the threshing device, which reduces the accumulation of straw dust and other debris generated in the threshing section compared to when it is located at the bottom of the machine. Furthermore, the exhaust pipe extends diagonally upward and rearward in a substantially straight line from the exhaust gas purification device in a side view, reducing the uneven distribution of exhaust gas within the exhaust pipe and allowing the exhaust gas to be efficiently discharged outside the machine. Furthermore, in a front view, the lower part of the exhaust pipe is inclined so that it approaches the control section as it moves upward, and the upper part of the exhaust pipe is inclined so that it approaches the threshing section as it moves upward. This keeps the middle part of the exhaust pipe away from the threshing section, reducing the possibility that heat from the exhaust pipe will adversely affect the threshing drive belt, etc. Furthermore, according to the invention of claim 2, the auger receiver is positioned at the rear of the side of the threshing section of the control section, and the tip of the exhaust pipe is positioned behind the auger receiver, discharging exhaust gas toward the rear of the machine body, which not only reduces the possibility of the operator coming into contact with the exhaust pipe, but also allows the auger receiver to be used as a support member for the exhaust pipe. Furthermore, according to the invention of claim 3, the exhaust pipe is positioned lower than the auger in the stored state, thereby reducing the possibility of the sheet coming into contact with the exhaust pipe when covering the combine with the sheet, and preventing the sheet from melting due to the heat of the exhaust pipe. According to the invention of claim 4, the auger fixing device is disposed on the front side of the auger receiver, so that the auger fixing device can be prevented from coming into contact with the exhaust pipe when being operated. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a right side view of a combine harvester according to an embodiment of the present invention. [Figure 2] 1 is a plan view of a combine harvester according to an embodiment of the present invention. FIG. [Figure 3] FIG. 1 is a right side view of a main part of a combine harvester (with an exhaust pipe cover) according to an embodiment of the present invention. [Figure 4] 1 is a right side view of a main part of a combine harvester (without an exhaust pipe cover) according to an embodiment of the present invention. FIG. [Figure 5]1 is a plan view of a main part of a combine harvester (without an exhaust pipe cover) according to an embodiment of the present invention. [Figure 6] 1 is a front view of a main part of a combine harvester (without an exhaust pipe cover) according to an embodiment of the present invention. [Figure 7] 1 is a perspective view of a main part of a combine harvester (with an exhaust pipe cover) according to an embodiment of the present invention. FIG. [Figure 8] 1 is a perspective view of a main part of a combine harvester (without an exhaust pipe cover) according to an embodiment of the present invention. FIG. [Figure 9] 1 is a perspective view of a combine harvester according to an embodiment of the present invention, viewed from the right front. [Figure 10] FIG. 2 is an exploded perspective view showing the mounting structure of the first exhaust pipe cover of the combine harvester according to the embodiment of the present invention. [Figure 11] 1 is an exploded perspective view showing an exhaust pipe mounting structure of a combine harvester according to an embodiment of the present invention. FIG. [Figure 12] FIG. 2 is an exploded perspective view showing the mounting structure of the second exhaust pipe cover of the combine harvester according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] 1 to 9, a combine harvester 1 includes a traveling body 4 having a crawler-type traveling section 3 below a body frame 2, a pre-processing section 5 connected to the front of the traveling body 4 so as to be able to move up and down, a threshing section 6 that threshes and sorts grains from the stalks cut by the pre-processing section 5, a grain lifting device 7 that transports the grains sorted by the threshing section 6, a grain tank 8 that stores grains supplied from the threshing section 6 via the grain lifting device 7, an auger 9 that discharges grains from the grain tank 8 outside the machine, an engine 10 that supplies power to each section, and a control section 11 on which an operator rides.

[0009] In a front view, the control unit 11 is located on one side (left side) of the traveling body 4, and the threshing unit 6 is located on the other side (right side) of the traveling body 4. The grain tank 8 is located behind the control unit 11, the lifting device 7 is installed upright between the threshing unit 6 and the grain tank 8, and the engine 10 is located below the control unit 11.

[0010] The auger 9 comprises a vertical pipe 9a erected at the rear of the grain tank 8, and a horizontal pipe 9b connected to the upper end of the vertical pipe 9a. A spiral conveyor (not shown) connected in series is installed inside the bottom of the grain tank 8, the vertical pipe 9a, and the horizontal pipe 9b, and as these spiral conveyors rotate, the grain in the grain tank 8 is conveyed to the tip of the horizontal pipe 9b and discharged outside the machine from a discharge port 9c provided at the tip of the horizontal pipe 9b.

[0011] The auger 9 can change the grain discharge position based on the rotation and elevation operation of the horizontal pipe 9b. When grain is not being discharged, the horizontal pipe 9b is stored in a predetermined storage position (see Figures 1 and 2). An auger receiver 12 that supports the horizontal pipe 9b in the storage position is located at the rear of the side of the control unit 11 on the threshing unit 6 side. When storing the horizontal pipe 9b after grain discharge, the horizontal pipe 9b is rotated above the auger receiver 12 and then lowered until it abuts against the auger receiver 12.

[0012] The auger receiver 12 includes a receiving portion 12a that is generally V-shaped in front view and supports the horizontal pipe 9b, and a support portion 12b that extends downward from the receiving portion 12a. As shown in FIG. 9 , an auger fixing device 13 is provided on the front side of the support portion 12b to fix the stored horizontal pipe 12b to the auger receiver 12. In this embodiment, the auger fixing device 13 includes an attachment portion 13a that protrudes integrally with the front side of the support portion 12b and a ring-shaped fixing device 13b that engages with the attachment portion 13a. A hook 9d that protrudes downward is provided on the horizontal pipe 9b side. When the horizontal pipe 9b is stored, the fixing device 13b is hooked onto the hook 9d to fix the horizontal pipe 9b to the auger receiver 12, thereby restricting unintended movement of the horizontal pipe 9b.

[0013] An exhaust gas purification device 14 that purifies the exhaust gas of the engine 10 is provided near the engine 10. The exhaust gas purification device 14 of this embodiment has a cylindrical outer shape and is disposed below the side of the steering unit 11 on the threshing unit 6 side, with its longitudinal direction aligned with the front-to-rear direction. Note that the exhaust gas purification device 14 of this embodiment is a DFP that removes particulate matter from the exhaust gas, but an exhaust gas purification device other than a DFP may also be used.

[0014] The exhaust gas purified by the exhaust gas purification device 14 is discharged outside the aircraft through an exhaust pipe 15. The exhaust gas purification device 14 of this embodiment has a tail pipe 14a on the upper surface at the rear end, and the base end of the exhaust pipe 15 is connected to the tail pipe 14a. The exhaust pipe 15 may become very hot due to the heat of the exhaust gas, so it is desirable to avoid touching it with hands, accumulating straw, or having components that are affected by heat nearby.

[0015] 3 and 4, the exhaust pipe 15 extends diagonally upward and rearward from the exhaust gas purification device 14 in a substantially straight line in a side view, and is positioned so that the exhaust port 15a at the tip is located above the threshing device 7. Therefore, compared to when the exhaust pipe 15 is positioned at the bottom of the machine body, accumulation of straw dust and the like generated from the threshing section 6 can be reduced. In addition, by extending the exhaust pipe 15 diagonally upward and rearward from the exhaust gas purification device 14 in a substantially straight line, uneven distribution of exhaust gas within the exhaust pipe 15 is reduced, and the exhaust gas can be efficiently discharged outside the machine.

[0016] 6, the exhaust pipe 15 comprises, in a front view, an exhaust pipe lower region 15b that is inclined so as to approach the steering unit 11 as it goes up, an exhaust pipe upper region 15c that is inclined so as to approach the threshing unit 6 as it goes up, and a curved portion 15d that connects the exhaust pipe lower region 15b and the exhaust pipe upper region 15c. With this type of exhaust pipe 15, the middle part of the exhaust pipe 15 can be kept away from the threshing unit 6, thereby reducing the possibility that the heat of the exhaust pipe 15 will adversely affect the threshing drive belt B, etc.

[0017] As shown in FIGS. 3 to 5, the tip of the exhaust pipe 15 (exhaust port 15a) is disposed rearward of the auger receiver 12 and discharges exhaust gas toward the rear of the machine body. In other words, the tip of the exhaust pipe 15 is disposed rearward of the auger receiver 12, which is disposed rearward on the side of the control unit 11 facing the threshing unit 6, thereby reducing the possibility of the operator coming into contact with the exhaust pipe 15. Furthermore, the exhaust pipe 15 discharges exhaust gas rearward from a position rearward of the auger receiver 12, thereby reducing the impact of the exhaust gas on the operator. Furthermore, as described above, the auger fixture 13 is disposed in front of the auger receiver 12, which also prevents the operator from coming into contact with the tip of the exhaust pipe 15 when operating the auger fixture 13.

[0018] 6, the exhaust pipe 15 is disposed at a position lower than the auger 9 (horizontal pipe 9b) in the stored state. With this arrangement, when the combine harvester 1 is covered with a sheet S during storage, the possibility that the sheet S will come into contact with the exhaust pipe 15 is reduced, and the sheet S can be prevented from melting due to the heat of the exhaust pipe 15.

[0019] 3 and 12, a first exhaust pipe cover 16 and a second exhaust pipe cover 17 are provided on the tip side of the exhaust pipe 15 to cover the upper side of the pipe. This reduces the possibility that the operator will come into direct contact with the tip side of the exhaust pipe 15.

[0020] Next, the mounting structure of the exhaust gas purification device 14, the exhaust pipe 15, the first exhaust pipe cover 16, and the second exhaust pipe cover 17 will be described with reference to FIGS. 7, 8, and 10 to 12. FIG.

[0021] The combine harvester 1 is provided with an auxiliary frame 18 that is shaped like an inverted U in a side view and that is erected on the machine frame 2 so as to straddle the engine 10 in the fore-and-aft direction. An exhaust gas purification device 14 is attached to the upper part of the auxiliary frame 18 with its longitudinal direction aligned with the fore-and-aft direction, and the lower end of the auger receiver 13 is attached to the rear end of the auxiliary frame 18.

[0022] The base end of the exhaust pipe 15 is attached to the auxiliary frame 18, and the tip end is attached to the auger receiver 13. With this attachment structure, not only can the auger receiver 13 also serve as a support member for the exhaust pipe 15, but the exhaust pipe 15 can also be used to reinforce the support portion of the auger receiver 13.

[0023] One end of the first exhaust pipe cover 16 is attached to the auger receiver 13, and the other end is attached to the grain lifting device 7. The second exhaust pipe cover 17 is attached to the first exhaust pipe cover 16. With this attachment structure, not only can the grain lifting device 7 and the auger receiver 13 be used as support members for the first exhaust pipe cover 16, but the support portion of the auger receiver 13 can also be reinforced by using the first exhaust pipe cover 16.

[0024] According to this embodiment configured as described above, there are provided a control section 11 arranged on one side of the machine body when viewed from the front, a threshing section 6 arranged on the other side of the machine body when viewed from the front, a grain tank 8 arranged behind the control section 11, a grain lifting device 7 erected between the threshing section 6 and the grain tank 8 and transporting grains threshed in the threshing section 6 to the grain tank 8, an engine 10 arranged below the control section 11, an exhaust gas purification device 14 that purifies the exhaust gas of the engine 10, and a discharge device 16 that discharges the exhaust gas purified by the exhaust gas purification device 14 outside the machine. The exhaust gas purifying device 14 is disposed on the side of the control section 11 on the threshing section 6 side, with its longitudinal direction aligned with the front-to-rear direction. The exhaust pipe 15 extends diagonally upward and rearward from the exhaust gas purifying device 14 in a substantially straight line in a side view, with its tip positioned above the threshing device 7. Furthermore, in a front view, the lower part of the exhaust pipe 15 is inclined so as to approach the control section 11 as it approaches the control section 11, and the upper part of the exhaust pipe 15 is inclined so as to approach the threshing section 6 as it approaches the threshing section 6. As a result, the tip of the exhaust pipe 15 is positioned above the threshing device 7, which reduces the accumulation of straw dust and other particles generated from the threshing section 6 compared to when the exhaust pipe is disposed at the bottom of the machine. Furthermore, because the exhaust pipe 15 extends diagonally upward and rearward from the exhaust gas purifying device 14 in a substantially straight line in a side view, it reduces the uneven distribution of exhaust gas within the exhaust pipe 15 and allows the exhaust gas to be efficiently discharged outside the machine. In addition, when viewed from the front, the lower part of the exhaust pipe 15 is inclined so that it approaches the control section 11 as it goes up, and the upper part of the exhaust pipe 15 is inclined so that it approaches the threshing section 6 as it goes up, so that the middle part of the exhaust pipe 15 is away from the threshing section 6, reducing the possibility that the heat from the exhaust pipe will have an adverse effect on the threshing drive belt B, etc.

[0025] The combine harvester 1 also includes an auger 9 that transports grain from the grain tank 8 outside the machine, and an auger support 12 that supports the auger 9 in a storage position. The auger support 12 is located at the rear side of the threshing section 6 side of the control section 11, and the tip of the exhaust pipe 15 is located behind the auger support 12, discharging exhaust gas toward the rear of the machine body. This not only reduces the possibility of the operator coming into contact with the exhaust pipe 15, but also allows the auger support 12 to be used as a support member for the exhaust pipe 15.

[0026] In addition, since the exhaust pipe 15 is positioned lower than the auger 9 in the stored state, when the combine 1 is covered with the sheet S, the possibility of the sheet S coming into contact with the exhaust pipe 15 is reduced, and melting of the sheet S due to the heat of the exhaust pipe 15 can be prevented.

[0027] The combine harvester 1 further includes an auger fixing device 13 for fixing the auger 9 to the auger holder 12, and the auger fixing device 13 is disposed in front of the auger holder 12, so that the auger fixing device 13 can be prevented from coming into contact with the exhaust pipe 15 when being operated. [Explanation of symbols]

[0028] 1. Combine 4 Running body 6. Threshing Department 7 Grain frying equipment 8 Grain Tank 9. Ogre 10 Engine 11 Control Unit 12 Ogre Receptacle 13 Auger Fixture 14 Exhaust gas purification device 15 exhaust pipe 16 First exhaust pipe cover 17 Second exhaust pipe cover

Claims

1. A control unit disposed on one side of the aircraft when viewed from the front; A threshing unit disposed on the other side of the machine body when viewed from the front; A grain tank located behind the steering unit; A lifting device that is installed between the threshing unit and the grain tank and transports the grains threshed by the threshing unit to the grain tank; an engine disposed below the control section; an exhaust gas purification device that purifies exhaust gas from the engine; An exhaust pipe that discharges the exhaust gas purified by the exhaust gas purification device outside the combine, The exhaust gas purification device is arranged on the side of the steering unit on the threshing unit side so that the longitudinal direction is along the front-to-rear direction, The exhaust pipe extends obliquely upward and rearward from the exhaust gas purification device in a substantially straight line in a side view, and is disposed so that a tip end thereof is located above the grain lifting device, Furthermore, when viewed from the front, the lower part of the exhaust pipe is inclined so that it approaches the operating section as it goes up, and the upper part of the exhaust pipe is inclined so that it approaches the threshing section as it goes up.

2. an auger that carries the grains in the grain tank out of the machine; an auger receiver that supports the auger at a storage position, The auger receiver is disposed on the rear side of the steering section on the threshing section side, 2. The combine harvester according to claim 1, wherein a tip of the exhaust pipe is disposed rearward of the auger receiver and discharges exhaust gas toward the rear of the machine body.

3. 3. The combine harvester according to claim 2, wherein the exhaust pipe is disposed at a position lower than the auger in a stored state.

4. an auger fixing device for fixing the auger to the auger receiver; The combine harvester according to claim 2, wherein the auger fixing device is disposed on a front side of the auger receiver.

Images