JP2019062797A - Combine-harvester - Google Patents

Abstract

To provide a combine-harvester capable of preventing deterioration of grain quality due to heat of an air release pipe.SOLUTION: There is provided a combine-harvester comprising a cleaning device (14) for cleaning an exhaust gas between a thresher (4) and a grain tank (7), a lower part of a right wall (4B) of the thresher (4) and an upper part of a left wall (7A) of the grain tank (7) are communicated by a lifting device (9) for transporting grains. An air release pipe (15) connected to an exhaust hole of the cleaning device (14) is extended to an upper side from the cleaning device (14), is extended to a left side on a front side of the lifting device (9), and is extended to a rear side on a left side of the lifting device (9). Between the air release pipe (15) and the lifting device (9) in a lateral direction, there is provided a cover (81) for blocking heat from the air release pipe (15) in the combine-harvester.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a combine equipped with an exhaust gas purification device.

  In the conventional combine, the exhaust gas purification device is disposed in the space between the inclined portion formed on the upper right wall of the threshing device and the notch portion formed on the left wall of the grain tank, and the exhaust gas passing through the exhaust gas purification device There is known a technique for extending an exhaust pipe for guiding a gas rearward. (Patent Document 1)

JP, 2015-123051, A

  However, according to the technique of Patent Document 1, the exhaust pipe is close to the lifting device for transferring grains from the threshing device to the gren tank and the gren tank, there is a possibility that the quality of grains being transferred or stored may be adversely affected. The

  Then, the main subject of this invention is providing the combine which can prevent the deterioration of the grain quality by the heat of an exhaust pipe.

  The present invention which solved the above-mentioned subject is as follows.

  That is, according to the first aspect of the present invention, the harvesting pretreatment device (3) for harvesting cereal grains is provided on the front side of the airframe frame (1), and the harvesting pretreatment device (3) is harvested on the rear left side There is provided a threshing device (4) for threshing and sorting the grain, and a control unit (5) on which the operator gets on the rear right side of the pre-removal processing unit (3) is provided. The threshing device is provided with an engine room (6) on the lower side, and a grain tank (7) for storing threshed / sorted grains on the rear side of the engine room (6). A purification device (14) for purifying exhaust gas is provided between (4) and the gren tank (7), and a lower portion of the right wall (4B) of the threshing device (4) and a left wall (g) of the gren tank (7) The upper portion of 7A) is communicated with a lifting device (9) for transporting grains, and the purification device The exhaust pipe (15) connected to the exhaust port of 14) is extended upward from the purification device (14), and is extended to the left side on the front side of the lifting device (9). A cover (81) is provided that extends to the rear side on the left side and that blocks the hot air from the exhaust pipe (15) between the exhaust pipe (15) and the lateral direction of the lifting device (9). It is a combine to make.

  The invention as set forth in claim 2 is the combine according to claim 1, wherein the cover (81) extends rearward of the lifting device (9).

  The invention according to claim 3 is the combine according to claim 1 or 2, wherein the cover (81) is supported by the lifting device (9).

  According to the invention of claim 1, the cover (81) for blocking the hot air from the exhaust pipe (15) is provided between the exhaust pipe (15) and the lifting device (9) in the left-right direction. It is possible to suppress the deterioration of grain quality due to the hot air of the tube (15).

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the cover (81) extends rearward with respect to the elevation device (9), so raising and lowering in the gren tank (7) It is possible to suppress the transfer of the hot air of the exhaust pipe (15) to the part behind the device (9), and to further suppress the deterioration of the grain quality.

  According to the third aspect of the invention, in addition to the effects of the first or second aspect of the invention, the cover (81) is supported by the lifting device (9), so the cover (81) and the lifting device By maintaining the clearance of (9), it is possible to suppress the damage to the lifting and lowering device (9) and the generation of noise.

It is a left view of a combine. It is a top view of a combine. It is a front view of the exhaust gas purification device fixed to the purification frame and a urea purification device. It is the perspective view which looked the exhaust gas purification device fixed to the purification | cleaning flame | frame and the urea purification device from the upper side of the left front. It is the perspective view which looked at the exhaust gas purification device fixed to the purification | cleaning flame | frame and the urea purification device from the upper side of the left rear. It is the perspective view seen from the upper side of the front right part of the purification frame. It is a left view of the raising / lowering apparatus which connects a threshing apparatus and a grain tank. It is the perspective view which looked at the extension part of the discharge part of the raising / lowering apparatus extended to the inside of the grain tank from the upper part of the right rear. Around the exhaust purification system and the urea purification system. Around the exhaust purification system and the urea purification system.

  The present invention will be described with reference to the drawings. In addition, when viewed from the operator, the front is referred to as the front, the rear as the rear, the right hand as the right side, and the left hand as the left side.

  As shown in FIGS. 1 and 2, the general purpose combine is provided with a traveling device 2 consisting of a pair of left and right crawlers traveling on the soil surface below the body frame 1, and harvests the cereals in the field on the front side of the body frame 1. The threshing device 4 is provided at the back left side of the pre-removal processing device 3 and the threshing device 4 for threshing and sorting off the harvested gravel is provided at the rear right side of the removal pre-processing device 3 A control unit 5 is provided on which a pilot rides.

  An engine room 6 equipped with an engine is provided below the control unit 5, and a gren tank 7 for storing threshed and sorted grains is provided on the rear side of the control unit 5, and on the rear side of the gren tank 7 A discharge cylinder 8 for discharging the grain to the outside is provided. The discharge cylinder 8 includes a vertical discharge cylinder extending in the vertical direction and communicating the lower portion with the rear lower portion of the grain tank 7, and a horizontal discharge cylinder extending in the front and rear direction communicating the rear with the upper portion of the vertical discharge cylinder. It is formed. Further, the lower part of the threshing device 4 and the upper part of the grain tank 7 are communicated with each other by a lifting device 9 for transporting grains from the grain throttling device 4 to the grain tank 7.

  The pre-removal processing apparatus 3 includes a transport device 3A that transports the rice straw to the rear side while standing up the cereals in the field, and a cutting blade device 3B that cuts the stock origin of the cereals transported to the lower rear of the transport device 3A. It comprises an auger 3C that gathers on the left side the cereals transported to the rear side of the transport device 3A, and a feeder house 3D that transports the gathered cereals to the threshing device 4.

  As shown in FIGS. 3 to 5, the threshing drum cover 60 provided on the upper side of the threshing drum of the threshing device 4 is a pivot 61 extending in the front-rear direction provided on the upper part of the left wall 4A of the threshing device 4. It is rotatably supported. As a result, by rotating the threshing drum cover 60 about the support shaft 61 to form a large space above the threshing drum, maintenance of the threshing drum and the like can be easily performed.

  Further, the extending portion 62 extending from the lower right side to the right side of the threshing drum cover 60 is detachably fixed to the threshing device frame 63 provided on the upper portion of the right wall 4B of the threshing drum device 4 It is done.

  At the lower rear of the control unit 5, a laterally extending cockpit frame 50 for supporting the cockpit is provided. The left portion of the cockpit frame 50 is connected to an inverted U-shaped left frame 52 provided at the front middle portion of the vehicle frame 1 via a connecting member 51 extending in the vertical direction. Further, the right portion of the cockpit frame 50 is connected to an inverted U-shaped right frame 54 provided on the front right side of the fuselage frame 1 via a connecting member 53 extending in the vertical direction. A radiator (not shown) provided on the right side of the engine room 6 is provided on the inner peripheral portion of the right side frame 54.

  An exhaust pipe 10 for exhausting the exhaust gas burned by the engine to the outside is connected to an exhaust port of an engine (not shown) mounted in the engine room 6.

  The exhaust pipe 10 is provided with an exhaust gas purification device (DPF) 12 for purifying impurities in exhaust gas and a urea purification device (SCR) 14 for purifying nitrogen oxides in exhaust gas exhausted from the exhaust gas purification device 12. ing. The exhaust gas purification device 12 is internally provided with an oxidation catalyst (DOC) on the upstream side and a particulate filter (DPF) on the downstream side.

  The exhaust port of the engine and the intake port of the exhaust purification device 12 are connected by the flexible first exhaust pipe 11, and the exhaust port of the exhaust purification device 12 and the intake port of the urea purification device 14 are flexible second A flexible third exhaust pipe ("exhaust pipe" in the claims) 15 is connected to the exhaust port of the urea purification device 14, which is connected by the exhaust pipe 13.

  As shown in FIGS. 9 and 10, the first exhaust pipe 11 extends rearward from the inside of the engine room 6 to the rear, but on the upper side of the first exhaust pipe 11, the first exhaust pipe is connected to the first exhaust pipe. A first cover 71 is provided to prevent accumulation of dust and the like and to enhance safety around the first exhaust pipe 11.

  The first cover 71 is fixed to a purifier frame 20 described later. Specifically, the upper end portion of the first cover 71 is attached to the lower surface of the purifier frame 20 at two front and rear positions by fixing means such as bolts. Note that the first cover 71 is not directly connected to a member on the control unit 5 side such as a pilot seat frame 50 described later in order to facilitate manufacture of the combine.

  Further, the front end portion of the first cover 71 is substantially the same as the rear end portion of the engine room 6 in the front-rear direction, or a part thereof is intruded into the engine room 6.

  Further, the first cover 71 has an upper surface portion covering the upper side of the first exhaust pipe 11 and a side surface portion covering the right side. The upper surface portion is formed to be downwardly sloping to prevent accumulation of dust.

  The third exhaust pipe 15 extends upward from the exhaust port of the urea purification device 14, bends approximately 90 degrees toward the left side, extends the front side of the lifting device 9 to the left side, and extends approximately 90 toward the rear side. It is bent to be close to the left side of the lifting device 9 and extends to the rear side. That is, the front end portion of the third exhaust pipe 15 is a front-rear extending portion 15A extending in the front-rear direction. Thereby, the threshing body cover 60 of the threshing apparatus 4 can be easily rotated centering on the spindle 61.

  The right end portion of the squeeze cylinder cover 60 in a closed state in which at least a portion of the front and rear extension 15A of the third exhaust pipe 15 is on the left side of the exhaust gas purification device 12 and the lift device 9 and covers the upper side of the squeeze cylinder. It is located more to the left. In addition, the front and rear extending portion 15A is disposed at a position not overlapping the pivoting trajectory of the threshing drum cover 60 when viewed from the front of the airframe (see FIG. 3). More specifically, the front and rear extending portion 15A is disposed closer to the grain tank 7 than the locus R of the extending portion 62 of the threshing drum cover 60. As described above, since the threshing drum cover 60 can be opened and closed (rotated) using the space formed on the lower side of the front and rear extending portion 15A of the third exhaust pipe 15 and on the left side of the exhaust gas purification device 12 The space for mounting the exhaust gas purification device 12 and the urea purification device 14 and the third exhaust pipe 15 and the space for opening and closing the threshing drum cover 60 can be made small, and the whole machine can be made compact.

  As shown in FIGS. 9 and 10, a third cover (“cover” in the claims) 81 is provided between the third exhaust pipe 15 and the lifting device 9. The third cover 81 extends rearward from the left side of the lifting device 9 relative to the lifting device 9.

  Thus, exhaust gas and hot air are prevented from staying in the space between the Glen tank 7 and the third exhaust pipe 15, and the deterioration of grain quality in the Glen tank 7 due to the influence of heat is suppressed.

  Further, the front portion of the third cover 81 is formed to cover the lower side, the side (right side) and the upper side of the third exhaust pipe 15.

  As a result, the gren tank 7 is opened centering on the longitudinal axis of the rear portion, and the safety of the worker is secured when performing maintenance on the exhaust gas purification device 12 and the urea purification device 14 and the periphery thereof.

  Further, the rear portion of the third cover 81 is formed to cover the lower side and the side (right side) of the third exhaust pipe 15. The width of the portion of the third cover 81 located on the lower side of the third exhaust pipe 15 in the left-right direction is tapered so as to decrease toward the rear side.

  Thus, the exhaust gas released from the end portion (rear end portion) of the third exhaust pipe 15 can be diffused into the ambient air, and stagnation of hot air around the third exhaust pipe 15 can be prevented.

  Further, the third cover 81 is supported by the lifting device 9.

  As a result, it is possible to suppress that the third cover 81 located closer to the grain tank 7 than the third exhaust pipe 15 interferes with the grain tank 7 due to the vibration of the airframe or the like.

  The exhaust purification device 12 and the urea purification device 14 are fixed to the purification device frame 20 via the mounting plate 16. In front view, the exhaust gas purification device 12 is fixed to the left side of the mounting plate 16, and the urea purification device 14 is fixed to the right side of the mounting plate 16 in parallel to the urea purification device 14.

  As shown in FIG. 6, the purification device frame 20 includes a first left and right frame 21 extending in the left and right direction, and a second left and right frame 22 extending in the left and right direction provided on the rear side of the first left and right frame 21. The third left and right frame 23 extending in the left and right direction provided on the rear side of the second left and right frame 22, the first front and rear frame 24 extending in the front and rear direction, and the right on the first front and rear frame 24 It is formed of a second front and rear frame 25 extending in the front and rear direction. The first left and right frames 21, the second left and right frames 22, and the third left and right frames 23 are collectively referred to as the left and right frames A, and the first front and rear frames 24 and the second front and rear frames 25 are collectively referred to as the front and rear frames B. Say.

  The rear surface of the left portion of the first left and right frame 21, the left surface of the left portion of the second left and right frame 22, and the left surface of the left portion of the third left and right frame 23 are connected to the first front and rear frame 24 respectively. The rear surface of the right portion of the first left and right frame 21 and the front surface of the right center portion of the second left and right frame 22 are connected to the second front and rear frame 25 respectively. Further, the lower surfaces of the first left and right frames 21, the lower surfaces of the second left and right frames 22, the lower surfaces of the third left and right frames 23, the lower surfaces of the first front and rear frames 24, and the lower surfaces of the second front and rear frames 25 It is provided at the same position. As a result, the extension of the lower portion of the purification device frame 20 extending to the engine room 6 can be reduced, and a large space can be formed in the engine room 6.

  The rear surface of the left portion of the second left and right frame 22 and the front surface of the left portion of the third left and right frame 23 are connected to the first reinforcing frame 26 extending in the front and rear direction. The front surfaces of the right portions of the third left and right frames 23 are connected to a second reinforcing frame 27 extending in the front-rear direction. The lower surfaces of the second left and right frames 22, the lower surfaces of the third left and right frames 23, the lower surface of the first reinforcing frame 26, and the lower surface of the second reinforcing frame 27 are provided at the same position in the vertical direction. Thereby, the deformation of the purification device frame 20 can be prevented, the lower portion of the purification device frame 20 extending to the engine room 6 can be made smaller, and a larger space can be formed in the engine room 6.

  In the upper surface of the first reinforcing frame 26 and the upper surface of the second reinforcing frame 27, an opening used when the mounting plate 16 is fixed is formed. Further, it is preferable that the rear surfaces of the second left and right frames 22 and the front surfaces of the third left and right frames 23 located on the extension of the second front and rear frames 25 be connected to the third reinforcing frame 28. Thereby, the deformation of the purification device frame 20 can be further prevented.

  On the front face of the first left and right frame 21, a pair of left and right front stays 21A connecting the purification device frame 20 to the upper surface of the pilot seat frame 50 supporting the pilot seat of the steering unit 5 is provided. On the left side of the rear of the first front and rear frame 24, a left stay 24 A is provided which connects the purifier frame 20 to the top surface of the threshing device frame 60 of the threshing device 4. Thus, the purifier frame 20 can be firmly connected and fixed to the cockpit frame 50 and the threshing device frame 60. The lower surface of the central portion of the left stay 24A is preferably connected to the machine body frame 1 via a connecting member 55 extending in the vertical direction. Thereby, the deformation of the purification device frame 20 can be further prevented.

  As shown in FIGS. 3 to 5, the exhaust purification device 12 and the urea purification device 14 fixed to the purification device frame 20 are provided at substantially the same position as the threshing body cover 60 of the threshing device 4 in the vertical direction. Therefore, when the threshing drum cover 60 is turned upward, the exhaust gas purification device 12 and the urea purification device 14 are located above the upper portion of the threshing device 4 main body, so maintenance of these devices can be easily performed. Can.

  At the front of the left wall 7A of the glen tank 7 facing the urea purification device 14, a notch S having an opening on the front side and the right side is formed. Thus, the exhaust gas purification device 12 and the urea purification device 14 can be provided side by side in the left-right direction and provided between the threshing device 4 and the gren tank 7.

  The front portion of the left wall 7A of the glen tank 7 is, in a front view, an upper vertical wall 31, an upper inclined wall 32 inclined downward from the lower end of the upper vertical wall 31 to the right, and a lower end of the upper inclined wall 32 Extending from the lower end of the middle vertical wall ("vertical wall") 33 extending to the side, the lower inclined wall 34 inclined downward to the left from the lower end of the middle vertical wall 33, and the lower inclined wall 34 The lower vertical wall 35 is formed. The notch S is a space defined by the upper inclined wall 32, the middle vertical wall 33, and the lower inclined wall 34.

  The upper inclined wall 32 is formed at a downward inclination angle of 45 degrees toward the right with respect to the horizontal plane, and the middle vertical wall 33 extends in the front-rear direction for conveying grains to the discharge cylinder 8 (not shown) And the lower inclined wall 34 is formed at a downward inclination angle of 30 degrees toward the left side with respect to the horizontal plane. Thereby, the grain conveyed to the grain tank 7 by the lifting and lowering device 9 can be dropped to the conveying spiral efficiently.

  As shown in FIG. 7, the lifting device 9 communicating the lower portion of the threshing device 4 with the upper portion of the grain tank 7 is fixed in a backward inclined posture, that is, in a posture where the upper portion is positioned behind the lower portion of the lifting device 9. ing. Thereby, in the side view, the overlapping area of the lifting device 9 and the notch S is reduced to efficiently use the notch S, and to prevent the third exhaust pipe 15 from being excessively bent. Can. The lifting device 9 can also be fixed in a vertical posture with a front upward tilt, that is, in a posture in which the upper portion is positioned forward of the lower portion of the lifting device 9. In addition, inside the lifting and lowering device 9, a bucket for transporting grains is provided.

  The discharge part 40 of the lifting and lowering device 9 is connected to a front part where the notch S is formed on the lower side of the upper vertical wall 31. Thereby, the grain conveyed to the grain tank 7 by the lifting and lowering device 9 can be dropped to the conveying spiral efficiently.

  As shown in FIG. 8, the discharge portion 40 is formed with an extension portion 40A which extends to the inside of the glen tank 7 beyond the right wall 7A of the gren tank 7. A rotating shaft 41 extending in the left-right direction is provided at a substantially central portion of the extending portion 40A. The rotary shaft 41 is provided with two discharge blades 42 separated by 180 degrees in the rotational direction. Further, the discharge blade 42 has a predetermined inclination angle with respect to the axial center of the rotation shaft 41, that is, the right side portion of the discharge blade 42 is positioned clockwise with respect to the rotation direction of the rotation shaft 41. Fixed. As a result, the grain transported by the lifting device 9 by the discharge blade 42 can be forcibly discharged into the gren tank 7, and clogging of the grain at the discharge part 40 can be prevented.

  A cover 43 is provided on the outer peripheral portion of the discharge blade 42. The cover 43 is formed of an upper side plate 44A, a front side plate 44B, and a lower side plate 44C. The width in the left-right direction of the upper side plate 44 is the same as the width of the discharge blade 42, and the width in the left-right direction of the front side plate 44B and the lower side plate 44C is formed half the width of the discharge blade 42 ing. Thereby, the grain conveyed by the lifting and lowering device 9 by the discharge blade 42 can be efficiently discharged to the center of the grain tank 7 in the left-right direction.

DESCRIPTION OF SYMBOLS 1 airframe frame 3 harvesting pretreatment device 4 threshing device 4B right wall 5 control part 6 engine room 7 grain tank 7A left wall 9 lifting device 12 exhaust purification device 14 urea purification device 15 third exhaust pipe (exhaust pipe)
Reference Signs List 20 purification device frame 21 first left and right frame 22 second left and right frame 23 third left and right frame 24 first front and rear frame 25 second front and rear frame 26 first reinforcement frame 27 second reinforcement frame 32 upper inclined wall 33 middle vertical wall (vertical wall )
34 Lower sloped wall 40 Ejection section 50 Cockpit frame 63 Threshing device frame 81 Third cover (cover)
A Left and right frame B Front and back frame S Notched part

Claims (3)

A threshing device provided on the front side of the airframe frame (1) with a harvesting pretreatment device (3) for harvesting cereal grains, and threshing and sorting the cereal grains harvested on the rear left side of the harvesting pretreatment device (3) An engine room (4) is provided, and a control unit (5) on which a pilot rides is provided on the rear right side of the pre-removal processing apparatus (3), and an engine is mounted under the control unit (5) 6) In the combine having a gren tank (7) for storing threshed / sorted grains on the rear side of the engine room (6),
A purification device (14) for purifying exhaust gas is provided between the threshing device (4) and the gren tank (7), and a lower portion of the right wall (4B) of the thresher device (4) and the gren tank (7) The top of the left wall (7A) is communicated with the lifting device (9) for transporting the grain,
An exhaust pipe (15) connected to an exhaust port of the purification device (14) extends upward from the purification device (14) and extends leftward on the front side of the elevation device (9), the elevation device Extend to the back on the left side of (9),
A combination (81) is provided between the exhaust pipe (15) and the lifting device (9) in the left-right direction, with a cover (81) for blocking hot air from the exhaust pipe (15).   The combine according to claim 1, wherein the cover (81) extends rearward of the lifting device (9).   The combine according to claim 1 or 2, wherein the cover (81) is supported by the lifting device (9).

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