combine

Abstract

To provide a combine capable of reducing a load by vertical frames deflecting in a back and forth direction of a machine body, and a lateral direction of the machine body in a connection part of a machine body frame and a plurality of vertical frames for supporting an operation part.SOLUTION: A combine includes an operation part 7 having an operation seat 31 and a side panel 33 provided on one side of a machine body in a lateral direction with respect to the operation seat 31. A first vertical frame 45 for supporting a rear part of the operation part at the back of the operation part 7, and a second vertical frame 46 provided on one side of the machine body in a lateral direction with respect to the first vertical frame 45 are erected on a machine body frame 1. A connection frame 50 is provided for connecting the first vertical frame 45 and the second vertical frame 46 at a height position above the side panel 33.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a combine harvester equipped with a driver's section having a driver's seat and a side panel provided on one side of the driver's seat in the left-right direction of the machine body. [Background technology]

[0002] Conventionally, some combine harvesters have a driving section provided behind the driving section and supported by a plurality of vertical frames erected on a machine body frame (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-187391 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional configuration, each of the multiple vertical frames is configured to support the driving section. Generally, a combine harvester performs work while swaying sideways and vibrating. During work, the vertical frames may bend in the front-rear and left-right directions of the machine body due to the swaying and vibration caused by the driving section. This bending of the vertical frames may cause a large load to be applied to the joints between the machine body frames and the vertical frames.

[0005] The present invention solves the above-mentioned problems, and aims to provide a combine that can reduce the load caused by the vertical frames bending in the fore-and-aft and left-right directions of the body at the connection parts between the body frame and multiple vertical frames that support the driving section. [Means for solving the problem]

[0006] The features of the present invention are that a driver's section is provided having a driver's seat and a side panel provided on one side of the vehicle in the left-right direction relative to the driver's seat, and a first vertical frame supporting the rear of the driver's section and a second vertical frame provided on one side of the vehicle in the left-right direction relative to the first vertical frame are erected on the vehicle frame behind the driver's section, a connecting frame is provided connecting the first vertical frame and the second vertical frame at a height position above the side panel, and a cabin is provided to cover the driver's section, and the connecting frame is provided in a state extending in the left-right direction of the vehicle behind the cabin. The features of the present invention are that a driver's section is provided having a driver's seat and a side panel provided on one side of the vehicle in the left-right direction relative to the driver's seat, and a first vertical frame supporting the rear of the driver's section and a second vertical frame provided on one side of the vehicle in the left-right direction relative to the first vertical frame are erected on the vehicle frame behind the driver's section, a connecting frame is provided connecting the first vertical frame and the second vertical frame at a height position above the side panel, and a cabin is provided to cover the driver's section, and the connecting frame has a bent portion between the connecting portion with the first vertical frame and the connecting portion with the second vertical frame, which is bent so as to bypass the cabin. The features of the present invention are that a driver's section is provided having a driver's seat and a side panel provided on one side of the vehicle in the left-right direction relative to the driver's seat, and a first vertical frame supporting the rear of the driver's section and a second vertical frame provided on one side of the vehicle in the left-right direction relative to the first vertical frame are erected on the vehicle frame behind the driver's section, a connecting frame is provided connecting the first vertical frame and the second vertical frame at a height position above the side panel, and a cabin is provided to cover the driver's section, and the second vertical frame includes a lower vertical frame portion supporting the rear of the side panel and an upper vertical frame portion supported by an upper portion of the lower vertical frame portion and extending upwardly on the outer lateral side of the cabin on one side of the vehicle in the left-right direction when viewed from the front. The present invention is characterized in that a driving section is provided with a driver's seat and a side panel provided on one side of the vehicle body in the left-right direction relative to the driver's seat, and a first vertical frame supporting the rear of the driving section and a second vertical frame provided on one side of the vehicle body in the left-right direction relative to the first vertical frame are erected on a vehicle frame behind the driving section, and a connecting frame is provided that connects the first vertical frame and the second vertical frame at a height position above the side panel. A cabin is provided to cover the driver's section, and the first vertical frame supports the cabin. The point is...

[0007] According to this characteristic configuration, the first vertical frame and the second vertical frame, which are erected on the vehicle frame, are connected by the connecting frame, so that the deflection of the first vertical frame supporting the rear of the driver's section can be reduced. Also, since the connecting frame connects the first vertical frame and the second vertical frame at a high position, that is, a height position above the side panels, the deflection of the first vertical frame can be reduced more than when the first vertical frame and the second vertical frame are connected at a lower position. Therefore, the load on the joint between the vehicle frame and the vertical frame caused by the deflection of the vertical frame in the fore-aft direction and the left-right direction of the vehicle can be reduced.

[0008] In the present invention, there is provided a grain tank for storing grains obtained by the threshing process, and a grain discharge device configured to be rotatable around a rotation axis extending along the vertical direction and discharging grains from the grain tank, wherein the grain discharge device is configured to extend along the rotation axis and has a vertical conveying section for transporting grains from the grain tank upward, and a horizontal conveying section supported at the upper end of the vertical conveying section so as to be able to swing up and down and transport grains from the vertical conveying section toward the outside of the machine, and the grain discharge device is configured to be able to change its posture between a discharge operation position where the horizontal conveying section extends outside the machine body and a storage position where the horizontal conveying section is located inside the machine body, and is provided with a receiving section for supporting the horizontal conveying section in the storage position, and it is preferable that the second vertical frame supports the receiving section.

[0009] Generally, a grain discharge device having a vertical conveying section and a horizontal conveying section is large in size and has a considerable weight. The receiving section that supports such a grain discharge device in the storage position requires high support strength. Furthermore, if a separate configuration for supporting the receiving section is provided, a separate frame extending in the vertical direction of the machine body will be provided, and the configuration of the frame, etc. will become complicated. According to this characteristic configuration, the receiving section is supported by the second vertical frame erected on the machine body frame, which has high support strength and makes it possible to firmly support the grain discharge device having a considerable weight. Furthermore, since the receiving section is supported by the second vertical frame, there is no need to provide a separate configuration for supporting the receiving section, and the frame configuration can be simplified.

[0010] In the present invention, it is preferable that a cabin is provided to cover the driver's section, and the first vertical frame supports the cabin.

[0011] According to this characteristic configuration, the cabin can be firmly supported by the first vertical frame that is erected on the aircraft frame.

[0012] In the present invention, it is preferable that the connecting frame be provided rearward of the cabin and extending in the left-right direction of the aircraft body.

[0013] Since the first vertical frame supports the driver's section from the rear, the deflection in the fore-aft direction of the aircraft is suppressed by the driver's section, and therefore the first vertical frame tends to deflect more in the left-right direction of the aircraft than in the fore-aft direction of the aircraft. According to this characteristic configuration, since the connecting frame is provided in a state of extending in the left-right direction of the aircraft behind the cabin, it is possible to suppress the deflection of the first vertical frame in the left-right direction of the aircraft.

[0014] In the present invention, it is preferable that the connecting frame has a bent portion bent so as to bypass the cabin between the connecting portion with the first vertical frame and the connecting portion with the second vertical frame.

[0015] According to this characteristic configuration, the connecting frame is configured to pass close to the cabin, making it possible to reduce the space required for providing the connecting frame.

[0016] In the present invention, it is preferable that the second vertical frame comprises a lower vertical frame portion supporting the rear of the side panel, and an upper vertical frame portion supported by the upper part of the lower vertical frame portion and extending upwardly on the outer lateral side of one side of the cabin in the left-right direction of the aircraft when viewed from the front.

[0017] According to this characteristic configuration, the rear portion of the side panel is supported by the lower vertical frame of the second vertical frame erected on the aircraft frame, so that the side panel can be firmly supported. Also, the upper vertical frame portion is provided so as to extend upward on one lateral side of the cabin in the left-right direction of the aircraft body, so that, for example, lighting equipment can be attached at the height of the cabin or at a higher height.

[0018] In the present invention, it is preferable that an oblique frame portion is provided which is arranged from a position laterally outboard on one side of the left-right direction of the aircraft beyond the upright position of the lower vertical frame portion in the aircraft frame to the upper part of the lower vertical frame portion.

[0019] According to this characteristic configuration, the diagonal frame portion supports the lower vertical frame portion of the second vertical frame in the diagonal direction, thereby firmly supporting the second vertical frame. In addition, since the diagonal frame portion is supported by the lower vertical frame portion, i.e., the lower side of the second vertical frame, it is possible to make the diagonal frame portion smaller than when the diagonal frame portion is supported by the upper vertical frame portion.

[0020] In the present invention, it is preferable that the first vertical frame comprises a first portion erected on the aircraft frame, a second portion extending forward from an upper end of the first portion, and a support portion provided on the second portion and supporting the driving section.

[0021] According to this characteristic configuration, a space in which equipment can be arranged is provided below the second section behind the driving section. Generally, in this type of combine harvester, an engine, etc., is installed below the driving section, but this space makes it possible to expand the space for arranging the engine, exhaust purification device, etc.

[0022] In the present invention, it is preferable that a third vertical frame is erected on the body frame behind the driving section, and that the third vertical frame is located between the first vertical frame and the second vertical frame when viewed from the front, and that a horizontal frame is provided spanning the third vertical frame and the first vertical frame.

[0023] According to this characteristic configuration, the first vertical frame supporting the driver's section is supported not only by the second frame but also by the third frame via the horizontal frame. Compared to a case where the first vertical frame is supported only by the second vertical frame, the deflection of the first vertical frame can be reduced. In addition, since the third vertical frame is disposed between the first vertical frame and the second vertical frame in a front view, the provision of the third vertical frame can prevent these frame structures from spreading in the left-right direction of the aircraft.

[0024] In the present invention, a precleaner is provided for cleaning the outside air supplied to the engine, and the precleaner is supported by the connecting frame. and This is preferable.

[0025] According to this characteristic configuration, since the precleaner is supported by the connecting frame, there is no need to provide a separate structure for supporting the precleaner, and the frame structure can be simplified. In the present invention, it is preferable that the second vertical frame comprises a lower vertical frame portion erected on the aircraft frame, a connecting plate extending from the lower vertical frame portion to one side in the left-right direction of the aircraft, and an upper vertical frame portion whose lower end portion is supported by the connecting plate and extends upwardly on the outer lateral side of one side of the aircraft in the left-right direction when viewed from the front. In the present invention, the receiving portion has a main body portion formed in a U-shape at its upper end, and a connecting portion which connects to the upper end of the second vertical frame, and it is preferable that the tip portion of the U-shaped main body portion on the side where the cabin is located extends upward to a height position higher than the tip portion on the opposite side. [Brief description of the drawings]

[0026] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3] FIG. 4 is a rear view showing the frame structure of the driver's section. [Figure 4] FIG. 2 is a side view showing the grain tank. [Diagram 5] 5 is a cross-sectional view taken along the arrows VV in FIG. 4. [Figure 6] 6 is a cross-sectional view taken along the line VI-VI in FIG. 4. [Figure 7] FIG. 2 is a plan view showing the frame structure of the driving section. [Figure 8] FIG. 2 is an exploded perspective view showing a frame structure of the driving section. [Figure 9] FIG. 11 is a rear view showing a mounting structure of a precleaner according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] The embodiment of the present invention will be described with reference to the drawings when applied to a head-feeding combine as an example of a combine harvester. In the following description, the direction of the arrow F is the "front side of the machine body" (see Fig. 1 and Fig. 2), the direction of the arrow B is the "rear side of the machine body" (see Fig. 1 and Fig. 2), the direction of the arrow U is the "upper side of the machine body" (see Fig. 1), the direction of the arrow D is the "lower side of the machine body" (see Fig. 1), the direction of the arrow L is the "left side of the machine body" (see Fig. 2), and the direction of the arrow R is the "right side of the machine body" (see Fig. 2).

[0028] [Overall structure of the combine harvester] As shown in Figures 1 and 2, the combine harvester of the present invention is provided with a machine frame 1 and a pair of left and right crawler traveling devices 2. A reaping unit 3 that reaps planted culms is provided at the front of the machine body. A threshing device 5 that threshes the culms reap by the reaping unit 3, and a grain tank 6 that stores the grains obtained by the threshing process are provided side by side at the rear of the machine body. The grain tank 6 can be opened and closed by swinging about an axis X that extends vertically between a working position and a maintenance position. A conveying unit 4 that conveys the reaped culms from the reaping unit 3 to the threshing device 5 is provided between the reaping unit 3 and the threshing device 5.

[0029] In front of the grain tank 6 and to the right of the conveying section 4, there is provided a driving section 7 covered by a cabin 8. An engine room ER that houses an engine E is provided below the driving section 7. Behind the driving section 7, there are provided an air cleaner 14 and a precleaner 15 that purify the outside air supplied to the engine E.

[0030] The threshing device 5 clamps and transports the base side of the harvested stalks fed toward the rear of the machine body, while supplying the tip side to the threshing chamber for threshing. Although not shown, the processed material after threshing in the threshing chamber is sorted into grains, straw dust, etc. in a sorting section below, and the grains are transported outward to the right side from the bottom of the threshing device 5 by a first grain transport screw (not shown), and then lifted to the top of the grain tank 6 by the grain lifting device 17 and transported inside the grain tank 6. The grain lifting device 17 is installed in the space between the threshing device 5 and the grain tank 6, vertically aligned.

[0031] [About the grain tank] 1 to 4, the grain tank 6 includes a front wall 6F, a right side wall 6R, a left side wall 6L (corresponding to a "side wall"), a rear wall 6B, and a ceiling 6U. The grain tank 6 also includes a lower tapered portion 6D formed in a downwardly tapered shape when viewed from the front of the machine body.

[0032] As shown in Fig. 4, a vertical recess Q is formed in the left wall 6L of the grain tank 6 on the side where the threshing device 5 is located, from the bottom to the top of the left wall 6L, and is recessed toward the inside of the grain tank 6. The vertical recess Q is located in the middle of the left wall 6L in the front-rear direction. As shown in Fig. 5, the lifting device 17 is provided so as to enter the vertical recess Q.

[0033] 4 and 5, the left side wall 6L is provided with a bulging portion 6a and a front flat surface 6b in front of the vertical recess Q. The left side wall 6L is provided with a rear flat surface 6c in rear of the vertical recess Q. The left side wall 6L is provided with a lower inclined surface 6DL constituting the left portion of the lower narrowing portion 6D below the front flat surface 6b and the rear flat surface 6c.

[0034] The bulging portion 6a is provided on the front upper portion of the left side wall portion 6L, and is configured to bulge toward the side where the threshing device 5 is located with respect to the front flat surface portion 6b, as shown in Fig. 2. As shown in Fig. 5, a distance D1 from an imaginary line L1 passing through the left-right center of the grain tank 6 to the outermost lateral side of the bulging portion 6a is configured to be longer than a distance D3 from the imaginary line L1 to the rear flat surface portion 6c.

[0035] As shown in Figs. 4 and 5, the bulging portion 6a is formed with a rectangular flat portion 6aa extending along the longitudinal direction and vertical direction of the aircraft body.

[0036] A first inclined surface 6ab is formed in the front of the bulging portion 6a, which is spaced further away from the threshing device 5 as it approaches the front of the machine body. The first inclined surface 6ab is provided from the front edge of the flat portion 6aa to the upper portion of the front edge of the left side wall portion 6L.

[0037] A second inclined surface 6ac is formed at the lower part of the bulging portion 6a, which is spaced further away from the threshing device 5 as it approaches the lower side of the machine body. The second inclined surface 6ac is provided from the lower edge of the flat portion 6aa to the upper edge of the front flat portion 6b.

[0038] A third inclined surface 6ad is formed at the rear of the bulging portion 6a, which is spaced apart from the threshing device 5 toward the rear of the machine body. The third inclined surface 6ad is provided from the rear edge of the flat portion 6aa to the upper portion of the front edge of the vertical recessed portion Q.

[0039] The front side of the ceiling portion 6U of the grain tank 6 extends toward the side where the threshing device 5 is located and is formed in a shape that fits the upper edges of the flat portion 6aa, the first inclined surface 6ab, and the third inclined surface 6ad, and is configured as the ceiling portion of the bulging portion 6a.

[0040] The front flat surface 6b is provided adjacent to the lower part of the bulging portion 6a and is formed in a flat shape extending to the lower part of the left side wall portion 6L. Specifically, in the vertical direction of the machine body, the front flat surface 6b is provided from the lower edge of the second inclined surface 6ac to the upper edge of the lower inclined surface 6DL. In the longitudinal direction of the machine body, the front flat surface 6b is provided from the front edge of the left side wall portion 6L to the front edge of the vertical recessed portion Q in a lower part corresponding to the lower end position of the second inclined surface 6ac. As shown in FIG. 6, the front flat surface 6b is configured so that the distance D2 from the imaginary line L1 passing through the center position of the grain tank 6 in the left-right direction of the machine body to the front flat surface 6b is the same as the distance D3 from the imaginary line L1 to the rear flat surface 6c. Also, as shown in FIG. 5, the distance D2 from the imaginary line L1 to the front flat surface 6b is configured to be shorter than the distance D1 from the imaginary line L1 to the outermost lateral side of the bulging portion 6a.

[0041] As shown in Fig. 4 and Fig. 6, the front plane portion 6b is provided with a first inspection opening 21a that communicates the inside and outside of the grain tank 6 and is used during assembly work and maintenance of the combine harvester, and a first lid body 21b that can be switched between a closed state that closes the first inspection opening 21a and an open state that opens the first inspection opening 21a. The first inspection opening 21a is formed in a substantially rectangular shape that extends from the front to the rear of the front plane portion 6b and from the top to the bottom of the front plane portion 6b. The first lid body 21b is formed in a substantially rectangular shape that is larger than the first inspection opening 21a. The first lid body 21b is fixed with bolts and configured to be easily detachable.

[0042] The rear flat surface 6c is formed in a flat shape extending from the upper part to the lower part of the left side wall 6L. Specifically, the rear flat surface 6c is provided from the upper edge of the left side wall 6L to the upper edge of the lower inclined surface 6DL. As shown in Fig. 5 and Fig. 6, the rear flat surface 6c is configured so that the distance D3 from the imaginary line L1 passing through the center position of the grain tank 6 in the left-right direction of the machine body to the rear flat surface 6c is the same at both the height position corresponding to the bulging portion 6a and the height position corresponding to the front flat surface 6b.

[0043] As shown in Fig. 4 and Fig. 6, like the front plane portion 6b, the rear plane portion 6c is provided with a second inspection opening 22a that communicates the inside and outside of the grain tank 6 and is used during assembly work and maintenance of the combine harvester, and a second lid body 22b that can be switched between a closed state that closes the second inspection opening 22a and an open state that opens the second inspection opening 22a. The second inspection opening 22a is formed in a substantially rectangular shape that extends from the front to the rear of the rear plane portion 6c and from the upper part to the lower part of the rear plane portion 6c. The second lid body 22b is formed in a substantially rectangular shape that is larger than the second inspection opening 22a. The second lid body 22b is fixed with bolts and configured to be easily detachable.

[0044] 1, 2, and 4, a grain discharge device 9 that discharges grains in the grain tank 6 to the outside is provided at the rear of the grain tank 6. The grain discharge device 9 is connected to the lower part of the rear wall portion 6B.

[0045] The grain discharge device 9 is provided with a bending portion 9A that bends from the horizontal direction to an upward direction from the rear wall portion 6B toward the downstream side in the conveying direction, a vertical conveying portion 9B that is connected to the conveying end point of the bending portion 9A and conveys the grains in the grain tank 6 upward, and a horizontal conveying portion 9C that conveys the grains from the vertical conveying portion 9B toward the outside of the machine body. The rear wall portion 6B is configured to extend along the up-down direction of the machine body, and the vertical conveying portion 9B is configured to fit along the rear wall portion 6B.

[0046] The bent portion 9A is configured so that the bent start point 9Aa on the upstream side in the conveying direction is located at the connection point with the rear wall portion 6B. The end of the horizontal conveying portion 9C on the vertical conveying portion 9B side is connected to the upper end of the vertical conveying portion 9B and is supported so as to be able to swing up and down. The grain discharge device 9 is configured to be able to rotate around a rotation axis extending in the vertical direction passing through the center of the vertical conveying portion 9B. With this configuration, the grain discharge device 9 is configured to be able to change its posture between a discharge operation position where the horizontal conveying portion 9C protrudes outward from the machine body and a storage position where the horizontal conveying portion 9C is located to the left of the threshing device 5 side, which is inside the machine body with respect to the grain tank 6. When the grain discharge device 9 is in the storage position, the horizontal conveying portion 9C is maintained in a posture in which it is received by a receiving portion 16 provided on the lateral outer side of the machine body of the driving portion 7.

[0047] [About the driving section] As shown in Figures 1 and 2, the driver's seat 7 is provided with a driver's seat 31, a front panel 32 in front of the driver's seat 31, and a side panel 33 on one side (left side) of the driver's seat 31 in the left-right direction of the machine body. Although not described in detail, the front panel 32 and the side panel 33 are provided with a plurality of operating tools such as a steering lever. The front panel 32 is provided in front of the driver's seat 31. The side panel 33 is provided on the side where the transport unit 4 is located in the left-right direction of the machine body with respect to the driver's seat 31. The side panel 33 is provided with an upper plate 33a (see Figure 7) that constitutes an upper surface portion, and an exterior cover 33b that covers the upper plate 33a from above.

[0048] [About the engine room] 3, in addition to the engine E, the engine room ER accommodates an exhaust purification device 10 that purifies the exhaust of the engine E, a radiator 11 that dissipates heat from the engine coolant, and a cooling fan (not shown) that cools the radiator 11. The radiator 11 is provided on the right side of the engine E. A dust cover 12 is provided that covers the radiator 11 and the right side of the engine room ER from the right side in a state that allows ventilation and prevents the passage of dust.

[0049] [About the exhaust pipe] As shown in FIG. 1 and FIG. 2, an exhaust pipe 13 is provided to discharge exhaust gas after purification processing by the exhaust purification device 10. The exhaust pipe 13 is passed between the threshing device 5 and the grain tank 6 in a plan view. The exhaust pipe 13 extends upward from the exhaust purification device 10 and then extends rearward while inclining upward toward the rear. The exhaust pipe 13 extends in the front-rear direction from a position corresponding to the front of the threshing device 5 to a position corresponding to the rear of the threshing device 5, and is located above the threshing device 5 from a position corresponding to the front of the threshing device 5 to a position corresponding to the rear of the threshing device 5. The central portion of the exhaust pipe 13 in the front-rear direction is located below the bulging portion 6a of the grain tank 6 and overlaps with the bulging portion 6a in a plan view.

[0050] [Driver frame structure] 3 and 4, a driver's section frame 41 is provided upright on the vehicle body frame 1. The driver's section frame 41 includes a radiator frame 42, an engine bonnet frame 43, a dust cover frame 44, a first vertical frame 45, a second vertical frame 46, a third vertical frame 47, and a horizontal frame 48.

[0051] 7 and 8, the engine bonnet frame 43 has a rear frame 43a (corresponding to a "sideways frame") extending in the left-right direction of the vehicle body at the rear of the engine bonnet frame 43, a first upper frame 43b extending in the front-rear direction of the vehicle body and provided at the right end of the rear frame 43a, a second upper frame 43c extending forward in the front-rear direction of the vehicle body from the left-right central part of the rear frame 43a, and a third upper frame 43d extending in the front-rear direction of the vehicle body from a position between the first upper frame 43b and the second upper frame 43c of the rear frame 43a. The first upper frame 43b, the second upper frame 43c, and the third upper frame 43d cover the engine room ER from above, and support from below the top plate 34 (see FIG. 1) on which the driver's seat 31 is placed and supported.

[0052] 3, the radiator frame 42 is provided upright on the body frame 1 between the radiator 11 and the dustproof cover frame 44. A first upper frame 43b (see FIG. 7) provided on the right end portion of the engine bonnet frame 43 is connected to the upper portion of the radiator frame 42 via a stay (not shown).

[0053] The horizontal frame 48 is provided to extend in the left-right direction of the vehicle body at the rear of the driver's section 7. The horizontal frame 48 supports the cabin 8 via a cabin rear frame 58 provided at the rear side of the cabin 8.

[0054] The dustproof cover frame 44 is erected on the body frame 1 to the right of the radiator frame 42. The dustproof cover frame 44 extends to a height position corresponding to the upper surface of the horizontal frame 48. The upper end of the dustproof cover frame 44 is connected to the right end of the horizontal frame 48.

[0055] 3, 4, 7, and 8, the first vertical frame 45 supports the driver's section 7 and the rear of the cabin 8, and is erected on the aircraft frame 1 behind the driver's seat 31. The first vertical frame 45 is erected on the aircraft frame 1 at a position between the second vertical frame 46 and the dustproof cover frame 44, on the side where the dustproof cover frame 44 is located.

[0056] The first vertical frame 45 includes a rear vertical frame portion 45a (corresponding to the "first portion"), a front-rear frame 45b (corresponding to the "second portion"), and a support portion 45c. The rear vertical frame portion 45a is erected on the vehicle frame 1 and extends to a height position slightly lower than the lower surface of the horizontal frame 48. The front-rear frame 45b extends forward from the upper end portion of the rear vertical frame portion 45a, and is provided between the upper end portion of the rear vertical frame portion 45a and the support portion 45c. The support portion 45c extends upward from the front portion of the front-rear frame 45b.

[0057] A connecting bracket 57a is fixed to an upper portion of the support portion 45c, and a connecting bracket 57b is fixed to the right side of the cabin rear frame 58, and the connecting bracket 57a on the support portion 45c side is bolted to the connecting bracket 57b on the cabin rear frame 58 side in a state of being abutted from the left side. With this configuration, the first vertical frame 45 supports the driver's section 7 and the cabin 8. A reinforcing frame 49 is provided across the rear vertical frame portion 45a and the longitudinal frame 45b.

[0058] The second vertical frame 46 is provided on one side in the left-right direction of the machine body (the left side) behind the driver's section 7 with respect to the first vertical frame 45. Specifically, the second vertical frame 46 is erected on the machine body frame 1 behind the left side portion of the side panel 33, and extends upward to a height position above the horizontal frame 48.

[0059] The second vertical frame 46 includes a lower vertical frame portion 46a and an upper vertical frame portion 46b. The lower vertical frame portion 46a is erected on the vehicle frame 1 and extends to a height position slightly above the upper plate 33a of the side panel 33. The upper vertical frame portion 46b is located on the left front side of the lower vertical frame portion 46a. The lower portion of the upper vertical frame portion 46b is supported on the upper portion of the lower vertical frame portion 46a via a connecting plate 46c. Specifically, the connecting plate 46c has a first plate 46c1 and a second plate 46c2. The first plate 46c1 is formed in an L-shape in a plan view and has two surfaces. One of the two surfaces of the first plate 46c1 is fixed to the left side surface of the lower vertical frame portion 46a. The other of the two surfaces of the first plate 46c1 extends in the left-right direction of the vehicle and supports the front surface of the upper vertical frame portion 46b. The second plate 46c2 is provided to extend in the left-right direction of the aircraft body, and its right end is fixed to the first plate 46c1. The second plate 46c2 supports the rear surface of the upper vertical frame portion 46b. In other words, the first plate 46c1 and the second plate 46c2 support the upper vertical frame portion 46b by sandwiching the front and rear of the upper vertical frame portion 46b between them.

[0060] The upper vertical frame portion 46b extends upward on the outer lateral side of one side (left side) in the left-right direction of the machine body of the driving unit 7 in a front view. A receiving portion 16 that supports the grain discharge device 9 in the storage position is supported on the upper portion of the upper vertical frame portion 46b.

[0061] The rear portion of the upper plate 33a of the side panel 33 is fixed with a bolt to a stay 52 provided on the upper portion of the lower vertical frame portion 46a.

[0062] A connecting frame 50 is provided to connect the first vertical frame 45 and the second vertical frame 46 at a height position above the horizontal frame 48. The connecting frame 50 is provided to extend in the left-right direction of the aircraft rearward of the cabin 8, and connects the first vertical frame 45 and the second vertical frame 46 at a height position above the side panel 33. An end of the connecting frame 50 on the first vertical frame 45 side is fixed to an upper end of the support portion 45c of the first vertical frame 45 with a bolt. An end of the connecting frame 50 on the second vertical frame 46 side is fixed to a stay 51 provided on the upper vertical frame portion 46b of the second vertical frame 46 with a bolt.

[0063] The connecting frame 50 has a bent portion 50a between a connecting portion with the first vertical frame 45 and a connecting portion with the second vertical frame 46, which is bent so as to bypass the driver's section 7. Specifically, the bent portion 50a is configured to be bent from a position corresponding to the rear of the driver's section 7 and the left side of the cabin 8 so as to be positioned toward the front of the aircraft as it approaches the left side of the aircraft.

[0064] An oblique frame portion 54 is provided between the second vertical frame 46 and the vehicle frame 1, connecting them. The oblique frame portion 54 is provided from a position laterally outward on one side (left side) in the vehicle left-right direction from the erected position of the lower vertical frame portion 46a on the vehicle frame 1 to an upper portion of the lower vertical frame portion 46a. An upper end portion of the oblique frame portion 54 is fixed with a bolt to a stay 53 provided on the upper portion of the lower vertical frame portion 46a.

[0065] The third vertical frame 47 is located behind the driver's station 7, between the first vertical frame 45 and the second vertical frame 46 in a front view, and is erected on the vehicle frame 1. The third vertical frame 47 extends upward to a height position corresponding to the upper plate 33a of the side panel 33. The upper end of the third vertical frame 47 is fixed to the rear part of the upper plate 33a of the side panel 33 with bolts. With this configuration, the side panel 33 is supported by the third vertical frame 47.

[0066] The third vertical frame 47 supports a left portion of the rear frame 43a of the engine bonnet frame 43. A connecting bracket 55a fixed to an upper portion of the third vertical frame 47 is provided on the third vertical frame 47, and a connecting bracket 55b fixed to a left portion of the rear frame 43a is provided on the engine bonnet frame 43. The third vertical frame 47 and the rear frame 43a are fixed with bolts in a state in which the connecting bracket 55a on the third vertical frame 47 side is abutted against the connecting bracket 55b on the engine bonnet frame 43 side from behind.

[0067] The first vertical frame 45 is provided with a connecting bracket 56a fixed to the vertical middle portion of the first vertical frame 45, and the engine bonnet frame 43 is provided with a connecting bracket 56b fixed to the right portion of the rear frame 43a. The first vertical frame 45 and the rear frame 43a are fixed with bolts in a state in which the connecting bracket 56a on the first vertical frame 45 side is abutted against the connecting bracket 56b on the engine bonnet frame 43 side from the rear. With this configuration, the rear frame 43a is provided across the third vertical frame 47 and the first vertical frame 45.

[0068] Here, a precleaner 15 is provided above the air cleaner 14. As shown in Figs. 3, 7, and 8, the precleaner 15 is supported by the connecting frame 50. The precleaner 15 is provided so as to overlap the front part of the bulging portion 6a in front and side views (see Figs. 3 and 4). The air cleaner 14 is connected by a rubber air intake pipe 61. The precleaner 15 and the air intake pipe 61 are connected via a metal connecting pipe 62. With this configuration, the air cleaner 14 and the precleaner 15 are connected in communication with each other by the air intake pipe 61. The connecting pipe 62 is provided with a connecting bracket 63a fixed to a right part of the connecting pipe 62, and the connecting frame 50 is provided with a connecting bracket 63b fixed to the center side in the left-right direction. The precleaner 15 and the connecting frame 50 are fixed by bolts with the connecting bracket 63a on the connecting pipe 62 side abutted against the connecting bracket 63b on the connecting frame 50 side from the front.

[0069] The first vertical frame 45, the second vertical frame 46, the third vertical frame 47, the horizontal frame 48, and the connecting frame 50, etc. are located behind the operating section 7 and can be easily accessed by swinging the grain tank 6 to the maintenance position, making it easy to perform bolt fastening and unlocking operations.

[0070] [Regarding the receiving part] The receiving portion 16 supported by the upper portion of the second vertical frame 46 includes a main body portion 16A formed in a U-shape at the upper end portion, and a connecting portion 16B that connects to the upper end portion of the second vertical frame 46. A tip portion 16Aa of the main body portion 16A formed in a U-shape on the side where the cabin 8 is located is attached at an angle to the left-right direction of the aircraft so as to be located closer to the front of the aircraft than a tip portion 16Ab on the opposite side.

[0071] Of the U-shaped main body portion 16A, the tip portion 16Aa on the side where the cabin 8 is located extends upward to a height position higher than the tip portion 16Ab on the opposite side, and extends to a height position slightly lower than the height position of the upper end portion of the cabin 8.

[0072] [Another embodiment] The following are examples of other embodiments in which the above-described embodiment has been modified. The following embodiments may be combined with each other and applied to the above-described embodiment, provided that no contradiction occurs. Note that the scope of the present invention is not limited to the contents of each embodiment.

[0073] (1) In the above embodiment, an example was described in which the end of the connecting frame 50 on the first vertical frame 45 side is fixed to the upper end of the support portion 45c of the first vertical frame 45, and the end of the connecting frame 50 on the second vertical frame 46 side is fixed to a stay 51 provided on the upper vertical frame portion 46b of the second vertical frame 46. However, the present invention is not limited to the above embodiment, and it is sufficient that the connecting frame 50 is provided at a height position above the side panel 33, and both side ends of the connecting frame 50 may be fixed to positions on the first vertical frame 45 and the second vertical frame 46 different from those in the above embodiment.

[0074] (2) In the above embodiment, a configuration in which the receiving portion 16 is supported by the second vertical frame 46 has been described as an example, but the present invention is not limited to the above embodiment, and for example, the receiving portion 16 may be supported by the first vertical frame 45.

[0075] (3) In the above embodiment, a configuration in which the driving unit 7 is equipped with a cabin 8 has been described as an example. However, the present invention is not limited to the above embodiment, and the driving unit 7 may be configured not to be equipped with a cabin 8.

[0076] (4) In the above embodiment, a configuration in which the cabin 8 is supported by the first vertical frame 45 has been described as an example, but the present invention is not limited to the above embodiment, and for example, the cabin 8 may be supported by the second vertical frame 46.

[0077] (5) In the above embodiment, the connecting frame 50 is described as being configured to extend in the left-right direction of the aircraft rearward of the cabin 8. However, the present invention is not limited to the above embodiment. For example, the connecting frame 50 may be configured to be obliquely configured so that the height position of one end of the connecting frame 50 is different from the height position of the other end of the connecting frame 50.

[0078] (6) In the above embodiment, the second vertical frame 46 is supported on the upper part of the lower vertical frame portion 46a and has an upper vertical frame portion 46b extending upward on the outer lateral side of one side of the cabin 8 in the left-right direction of the aircraft when viewed from the front. However, the present invention is not limited to the above embodiment, and may be configured, for example, to be supported on the upper part of the rear vertical frame portion 45a of the first vertical frame 45 and have a frame portion extending upward on the outer lateral side of one side of the cabin 8 in the left-right direction of the aircraft when viewed from the front.

[0079] (7) In the above embodiment, a configuration in which the second vertical frame 46 is provided with the diagonal frame portion 54 has been described as an example, however, the present invention is not limited to the above embodiment, and for example, the first vertical frame 45 may be provided with the diagonal frame portion 54, or may not be provided with the diagonal frame portion 54.

[0080] (8) In the above embodiment, the first vertical frame 45 is described as having a configuration including a rear vertical frame portion 45a, a front-to-rear frame 45b, and a support portion 45c. However, the present invention is not limited to the above embodiment. For example, the first vertical frame 45 may not have a front-to-rear frame 45b, but may have a configuration including a rear vertical frame portion 45a and a support portion 45c.

[0081] (9) In the above embodiment, a configuration in which the rear frame 43a is arranged across the third vertical frame 47 and the first vertical frame 45 was described as an example, but the present invention is not limited to the above embodiment. For example, the rear frame 43a may be arranged across the second vertical frame 46 and the first vertical frame 45, or a configuration without a rear frame 43a may be used.

[0082] (10) In the above embodiment, the air cleaner 14 and the precleaner 15 are connected to each other by a rubber air intake pipe 61, and the precleaner 15 is supported by the connecting frame 50. However, the present invention is not limited to the above embodiment. For example, as shown in FIG. 9, the air cleaner 14 and the precleaner 15 may be connected to each other by a resin air intake pipe 65, and the precleaner 15 may be supported by the threshing device 5. In this case, the precleaner 15 and the air intake pipe 65 are connected to each other by a metal connecting pipe 66. The air intake pipe 65 is provided with a connecting bracket 67a integrally formed on the left side of the air intake pipe 65, and a connecting bracket 67b fixed to the right side of the threshing device 5 is provided. The connecting bracket 67a on the connecting pipe 66 side and the connecting bracket 67b on the threshing device 5 side are fixed to each other by bolts with a rubber mount 67c sandwiched therebetween. With this configuration, the air intake pipe 65 can be made of resin, which is generally inexpensive, instead of rubber, thereby reducing costs. Furthermore, by providing a rubber mount 67c between the connecting bracket 67a and the connecting bracket 67b, the vibrations of the threshing device 5, which have a different period from the vibrations of the engine E, are reduced from being transmitted to the air intake pipe 65, thereby making it possible to reduce damage to the air intake pipe 65 caused by two vibrations of different periods being transmitted to the air intake pipe 65. [Industrial Applicability]

[0083] The present invention can be used not only in head-feeding combine harvesters but also in normal combine harvesters. [Explanation of symbols]

[0084] 1: Aircraft frame 6: Grain tank 7: Driving section 8: Cabin 9: Grain discharge device 9B: Vertical conveying section 9C: Horizontal conveyor section 15: Precleaner 16: Receiving part 16B:Connection part 31: Driver's seat 33: Side panel 43a: Rear frame (horizontal frame) 45: First vertical frame 45a: Rear vertical frame part (first part) 45b: Front and rear frame (second part) 45c: Support part 46: Second vertical frame 46a: Lower vertical frame section 46b: Upper vertical frame section 47: Third vertical frame 50: Joined frames 50a: Bending section 54: Diagonal frame section E: Engine

Claims

1. A driver's seat and a side panel provided on one side of the driver's seat in the left-right direction of the aircraft are provided in a driver's section. A first vertical frame supporting a rear portion of the driving section and a second vertical frame provided on one side of the first vertical frame in the left-right direction of the vehicle are erected on the vehicle frame behind the driving section, A connecting frame is provided to connect the first vertical frame and the second vertical frame at a height position above the side panel, A cabin is provided to cover the driver's section, The connecting frame is provided behind the cabin and extends in the left-right direction of the machine body.

2. A driver's seat and a side panel provided on one side of the driver's seat in the left-right direction of the aircraft are provided in a driver's section, A first vertical frame supporting a rear portion of the driving section and a second vertical frame provided on one side of the first vertical frame in the left-right direction of the vehicle are erected on the vehicle frame behind the driving section, A connecting frame is provided to connect the first vertical frame and the second vertical frame at a height position above the side panel, A cabin is provided to cover the driver's section, The connecting frame has a bent portion bent so as to bypass the cabin between the connecting portion with the first vertical frame and the connecting portion with the second vertical frame.

3. A driver's seat and a side panel provided on one side of the driver's seat in the left-right direction of the aircraft are provided in a driver's section, A first vertical frame supporting a rear portion of the driving section and a second vertical frame provided on one side of the first vertical frame in the left-right direction of the vehicle are erected on the vehicle frame behind the driving section, A connecting frame is provided to connect the first vertical frame and the second vertical frame at a height position above the side panel, A cabin is provided to cover the driver's section, The second vertical frame of the combine harvester includes a lower vertical frame portion that supports the rear of the side panel, and an upper vertical frame portion that is supported by the upper part of the lower vertical frame portion and extends upward on the outer lateral side of one side of the cabin in the left-right direction of the body when viewed from the front.

4. A driver's seat and a side panel provided on one side of the driver's seat in the left-right direction of the aircraft are provided in a driver's section. A first vertical frame supporting a rear portion of the driving section and a second vertical frame provided on one side of the first vertical frame in the left-right direction of the vehicle are erected on the vehicle frame behind the driving section, A connecting frame is provided to connect the first vertical frame and the second vertical frame at a height position above the side panel, A cabin is provided to cover the driver's section, The first vertical frame supports the cabin of a combine harvester.

5. The apparatus includes a grain tank for storing grains obtained by the threshing process, and a grain discharge device configured to be rotatable around a rotation axis extending along the vertical direction and for discharging grains from the grain tank. The grain discharge device is configured to extend along the pivot axis and has a vertical conveying section that conveys grains from the grain tank upward, and a horizontal conveying section that is supported at an upper end of the vertical conveying section so as to be able to swing up and down and conveys grains from the vertical conveying section toward the outside of the machine. The grain discharge device is configured to be able to change its posture between a discharge operation position where the horizontal conveying section protrudes outward from the machine body and a storage position where the horizontal conveying section is located inside the machine body, A receiving portion is provided to support the lateral conveying portion at the storage position, The combine harvester according to any one of claims 1 to 4, wherein the second vertical frame supports the receiving portion.

6. A combine described in any one of claims 1 to 5, wherein the first vertical frame supports the cabin.

7. The combine harvester according to claim 6 , wherein the connecting frame is provided so as to extend rearward of the cabin in the left-right direction of the machine body.

8. The combine harvester according to claim 6 or 7, wherein the connecting frame has a bent portion bent so as to bypass the cabin between a connecting portion with the first vertical frame and a connecting portion with the second vertical frame.

9. A combine harvester as described in any one of claims 6 to 8, wherein the second vertical frame comprises a lower vertical frame portion supporting a rear portion of the side panel, and an upper vertical frame portion supported by an upper portion of the lower vertical frame portion and extending upwardly on the outer lateral side of one side of the cabin in the left-right direction of the body when viewed from the front.

10. A combine harvester as described in claim 9, comprising a diagonal frame portion extending from a position laterally outboard on one side of the body in the left-right direction relative to the upright position of the lower vertical frame portion on the body frame to an upper portion of the lower vertical frame portion.

11. A combine harvester as described in any one of claims 1 to 10, wherein the first vertical frame comprises a first portion erected on the body frame, a second portion extending forward from an upper end of the first portion, and a support portion provided on the second portion and supporting the operating section.

12. A third vertical frame is erected on the body frame behind the driving section, The third vertical frame is located between the first vertical frame and the second vertical frame in a front view, The combine harvester according to any one of claims 1 to 11, further comprising a lateral frame extending across the third vertical frame and the first vertical frame.

13. A precleaner is provided to purify the outside air supplied to the engine. The combine harvester according to any one of claims 1 to 12, wherein the precleaner is supported by the connecting frame.

14. A combine harvester as described in any one of claims 1 to 13, wherein the second vertical frame is provided with a lower vertical frame portion erected on the body frame, a connecting plate extending from the lower vertical frame portion to one side of the body in the left-right direction, and an upper vertical frame portion whose lower end portion is supported by the connecting plate and extends upwardly on the outer lateral side of one side of the body in the left-right direction when viewed from the front.

15. The receiving portion has a main body portion formed in a U-shape at an upper end portion and a connecting portion connected to an upper end portion of the second vertical frame, The combine harvester according to claim 5 , wherein a tip portion of the main body portion formed in a U-shape on the side where the cabin is located extends upward to a height position higher than a tip portion on the opposite side.

Images