JP6617792B2 - Combine - Google Patents

Description

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

  In the conventional combine, there is a technology in which a recess is formed in the upper left wall of the grain tank facing the upper right wall of the threshing device, and an exhaust purification device composed of DPF and SCR for purifying engine exhaust gas is disposed in this recess. Are known. (Patent Document 1)

JP 2016-1558591 A

  However, when the recessed part which arrange | positions an exhaust gas purification apparatus is formed in the left wall upper part of a Glen tank like the technique of patent document 1, the grain conveyed to the Glen tank by the milling cylinder is clogged by the upper part of a recessed part. There is a problem that it does not fall to the bottom of the Glen tank.

  Therefore, the main problem of the present invention is that the first wall located above the recess where the exhaust gas purification device is disposed is steeply inclined so that the grain conveyed to the glen tank is clogged at the top of the recess. It is to provide a combine that prevents this.

  In order to solve the above problems, the present invention takes the following technical means.

In other words, according to the first aspect of the present invention, an engine room (6) containing the engine (E) is provided in the lower part of the control unit (5), and a Glen tank (7) is provided on the rear side of the control unit (5). The grain tank (7) is provided with a threshing device (4) on the left side, and the grain is conveyed from the lower part of the right wall (4B) of the threshing apparatus (4) to the upper part of the left wall (7A) of the grain tank (7). In the combine provided with a cereal cylinder (18), an exhaust purification device (20) for purifying the exhaust gas of the engine (E) is provided between the threshing device (4) and the glen tank (7), In the left wall (7A) of the Glen tank (7), a recess (30) in which only the front side and the left side are opened is formed on the front side of the milling cylinder (18), and the recess (30) is formed. From the upper left side of the left wall (7A) of the Glen tank (7) to the lower right side A first wall (32) extending toward the bottom, a second wall (33) extending downward from the lower end of the first wall (32), and a left side from the lower end of the second wall (33) a third wall (34) extending downward, the provided on the discharge KiKiyoshi apparatus (20), to purify and reduce nitrogen oxide material in the exhaust gas with ammonia generated from the urea water The SCR (22) is disposed so as to enter the recess (30), and is directed to the input part (19) formed at the upper end of the cereal cylinder (18), toward the rear part of the Glen tank (7). A first guide (58) for guiding the introduction of the grain and a second guide (59) for guiding the introduction of the grain toward the front of the Glen tank (7), and the first guide (58) A straight guide portion (58A) extending from the input portion (19) toward the front right side, and the straight guide A curved guide portion (58B) that is curved at the front end of the portion (58A) and extends to the right rear side, and the second guide (59) extends from the input portion (19) toward the front right side. Reservation of a portion of the Glen tank (7) located on the rear side of the charging portion (19) rather than a storage capacity of a portion of the Glen tank (7) positioned on the front side of the charging portion (19). The first guide (58) is disposed above the second guide (59), and the vertical width of the first guide (58) is greater than the vertical width of the second guide (59). It is a combine characterized by the fact that it is also formed large .

  According to a second aspect of the present invention, a first inclination angle (θ1) that is an inclination angle of the first wall (32) downward to the right side is an inclination angle of the third wall (34) that is downward inclination of the left side. The combine according to claim 1, wherein the combine is set to be steeper than the two inclination angles (θ2).

According to the first aspect of the present invention, the grain conveyed to the grain tank 7 by the whipping cylinder 18 can be prevented from being clogged above the recess 30 formed in the left wall 7A of the grain tank 7, and the grain can be prevented. Can flow smoothly down to the lower part of the Glen tank 7.
In addition, the grains that have been cerealed by the cereal cylinder 18 and introduced into the Glen tank 7 from the input unit 19 can be deposited on the front and rear parts of the Glen tank 7.

  According to the second aspect of the invention, in contrast to the effect of the first aspect of the invention, the grains can be made to flow more smoothly to the lower part of the Glen tank 7.

It is a left view of a combine. It is a top view of a combine. It is a left view explaining an engine and a purification device. It is a right view explaining an engine and a purification device. It is a top view explaining an engine and a purification device. It is a front view explaining the purification apparatus provided in the recessed part of the Glen tank. It is a rear view explaining the purification apparatus provided in the recessed part of the Glen tank. It is a top view explaining the purification apparatus provided in the recessed part of the Glen tank. It is a left view explaining a Glen tank. It is a top view explaining a Glen tank. It is a front view explaining a Glen tank. It is a rear view explaining a Glen tank. It is a transmission diagram of an engine. It is a right view explaining an engine room. It is a right view explaining an engine room. (A) of the belt stopper is a plan view, (b) is a left side view, and (c) is a rear view. It is a top view explaining the pitching cylinder provided in the body frame.

  The present invention will be described with reference to the drawings. From the viewpoint of the pilot, the front side is the front side, the rear side is the rear side, the right hand side is the right side, and the left hand side is the left side.

  As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 composed of a pair of left and right crawlers 2 </ b> A and 2 </ b> B that travels on the soil surface on the lower side of the machine frame 1. Is provided, a threshing device 4 for threshing / sorting the harvested cereals is provided on the rear left side of the reaping device 3, and a pilot rides on the rear right side of the reaping device 3. Part 5 is provided.

  An engine room 6 on which the engine E is mounted is provided on the lower side of the control unit 5, and a Glen tank 7 is provided on the rear side of the control unit 5 to store grains that have been threshed and sorted. A discharge auger 8 including a vertical discharge auger extending in the vertical direction for discharging the grains to the outside and a horizontal discharge auger extending in the front-rear direction is provided on the rear side.

  As shown in FIGS. 3 to 5, an intake pipe (not shown) that supplies purified air is connected to the intake port of the engine E, and the exhaust gas burned in the engine E is connected to the exhaust port of the engine E. Is connected to the front exhaust pipe 10.

  An exhaust purification device 20 that purifies impurities in the exhaust gas is connected to the exhaust port of the front exhaust pipe 10. The exhaust purification device 20 includes a DPF 21 that removes particulate matter in the exhaust gas, and an SCR 22 that reduces and purifies nitrogen oxides (NOx) in the exhaust gas exhausted from the DPF 21 with ammonia generated from urea water. Has been.

  An injection device 24, which is a valve for injecting urea water into the SCR 22, is connected to the rear portion of the flexible connection pipe 23 that connects the exhaust port of the DPF 21 and the intake port of the SCR 22. Is connected to a supply device 26 that is a pump that pumps urea water through a flexible connecting pipe 25, and urea water that stores urea water through a flexible connecting pipe 27 is connected to the supply device 26. A tank 28 is connected. Further, a flexible rear exhaust pipe (“exhaust pipe” in the claims) 11 for discharging the purified exhaust gas to the outside is connected to the exhaust port of the SCR 22.

  The front part of the exhaust gas purification device 20 faces the rear left side of the engine room 6 and extends to a housing chamber 60 that houses an electric board provided on the rear left side of the engine room 6. Thereby, the cut of the recessed part 30 of the Glen tank 7 mentioned later can be made small, and the reduction | decrease of the storage capacity of the Glen tank 7 can be suppressed.

  A heat shield (a “wall” in the claims) 61 is provided on the front side of the front portion of the exhaust purification device 20 with a predetermined interval. Thereby, it can prevent that an electric board becomes high temperature too much, and can prevent the raise of the ambient temperature of 5 A of control seats of the control part 5 can be prevented. Further, in this embodiment, the heat shield 61 is erected on the front side of the front part of the exhaust purification device 20, but the exhaust purification is performed so as to cover the front part of the exhaust purification device 20 extending to the storage chamber 60. It is preferable to provide the heat shields 61 on the upper side, the left side, and the right side of the front portion of the device 20, and it is more preferable to form the heat shields 61 in a double structure.

  The connecting pipe 23 is provided in the upper part between the DPF 21 and the SCR 22 so as to extend substantially linearly in the front-rear direction, and an injection device 24 is connected to the rear side of the connecting pipe 23. The injection device 24 is fixed to a support member (not shown) provided at the rear portion of the SCR 22. As a result, urea water can be efficiently injected from the injection device 24 to the SCR 22 via the connection pipe 23.

  The supply device 26 is attached to a reinforcing plate 17 that is connected between the right front vertical frame 14 and the right rear vertical frame 15 that support the horizontal frame 16 that fixes the exhaust gas purification device 20. The exhaust purification device 20 is disposed below the intermediate portion in the front-rear direction. Thereby, the length of the connecting pipe 25 connecting the injection device 24 and the supply device 26 can be shortened, and urea water can be efficiently supplied from the supply device 26 to the injection device 24.

  The urea water tank 28 is attached to a portion of the reinforcing plate 17 on the front side of the supply device 26, and a predetermined space is secured below the supply device 26. Thereby, the filter which removes the impurity in urea water can be replaced | exchanged easily.

  In the left side view, a pitching cylinder 65 for controlling the tilting posture of the airframe in the front-rear direction is disposed below a space S formed between the right front vertical frame 14 and the right rear vertical frame 15 below the exhaust purification device 20. A cylinder tube is provided, and on the upper side of the cylinder tube, a cooling water tank 66 that stores cooling water supplemented to the radiator 76 and a threshing clutch motor 67 that releases and connects the threshing clutch are provided. Thereby, the space S formed on the lower side of the exhaust purification device 20 can be efficiently used.

  As shown in FIG. 8, the rear exhaust pipe 11 extends rearward from the exhaust port of the SCR 22 in a plan view, bends approximately 90 degrees to the left side on the right side of the injection device 24 in the recess 30, and then toward the left side. It extends toward the rear side after being bent by about 90 degrees to the rear side at the right part of the threshing device 4 and reaches the left side of the milling cylinder 18. Moreover, as shown in FIG. 6 etc., the rear side exhaust pipe 11 is extended toward the upper right side part of the threshing device 4 from the center part of SCR22 in front view, and the center part of the rear side exhaust pipe 11 is a horizontal frame. It is fixed to a stay (not shown) extending from 16 to the rear side. Thereby, exhaust gas can be exhausted behind the cockpit 5A, and the surrounding environment of the cockpit 5A can be maintained more than predetermined.

  The whipping cylinder 18 is an apparatus that conveys the grains threshed and selected by the threshing apparatus 4 to the glen tank 7, and the lower part of the whipping cylinder 18 is fixed to the lower part of the right wall 4B of the threshing apparatus 4, The upper part of the whipping cylinder 18 is fixed to the upper part of the left wall 7 </ b> A of the Glen tank 7. Moreover, in order to prevent the harness etc., such as the electric wire which connects the exhaust gas purification apparatus 20 and the control apparatus (illustration omitted) provided in the control part 5 from being heated, a harness etc. are attached to the outer peripheral part of the flour milling cylinder 18. It is fixed.

  The inner diameter of the intake port of the rear exhaust pipe 11 is formed larger than the outer shape of the exhaust port of the SCR 22. As a result, when the exhaust gas is discharged from the SCR 22 to the rear exhaust pipe 11, the surrounding air is sucked into the rear exhaust pipe 11 from the gap between the intake port of the rear exhaust pipe 11 and the exhaust port of the SCR 22. Can be cooled.

  As shown in FIGS. 6 and 7, the DPF 21 and the SCR 22 of the exhaust purification device 20 are provided between the threshing device 4 and the grain tank 7 along the longitudinal direction of the machine body and extend upward from the machine body frame 1. The left front vertical frame 13, the right front vertical frame 14, and the right rear vertical frame 15 are placed on a horizontal frame 16 fixed to the upper part. In addition, DPF21 is arrange | positioned at the left side which is the threshing apparatus 4 side, and SCR22 is arrange | positioned at the right side which is the Glen tank 7 side.

  The upper wall 4E of the threshing device 4 is located below the upper wall 7E of the grain tank 7, and the right side front side of the upper wall 4E is inclined downward toward the grain tank 7 side and extends in the front-rear direction. An inclined portion 4G is formed. Further, in the front view, the upper end portions of the DPF 21 and the SCR 22 are provided so as to be biased downward from the upper wall 4E. Thereby, on the upper side of the DPF 21 and the SCR 22, a stay 45 extending from the inclined portion 4 </ b> G of the threshing device 4 toward the upper right side, and a vertical position regulating member extending toward the left side from the left wall 7 </ b> A of the Glen tank 7 ( The vertical position of the glen tank 7 can be regulated by engaging the vertical position regulating member with the stay 45.

  The Glen tank 7 is formed of a left wall 7A, a right wall 7B, a front wall 7C, a rear wall 7D, an upper wall 7E, and a bottom wall 7F. In the part of the left wall 7A located on the front side of the cereal cylinder 18, a recess 30 is formed with the front side and the left side opened, and on the part of the left wall 7A located on the rear side of the cereal cylinder 18, The convex part 50 bulging and formed toward the threshing apparatus 4 is formed.

  In front view, the SCR 22 enters the recess 30, and the DPF 21 is disposed outside the recess 30. Accordingly, the DPF 21 and the SCR 22 can be provided side by side in the left-right direction between the threshing device 4 and the grain tank 7, and the concave portion 30 can be reduced to suppress a decrease in the storage capacity of the grain tank 7. it can.

  Further, the exhaust purification device 20 is disposed at a relatively low position. As a result, the distance from the engine E to the exhaust purification device 20 is shortened, and a reduction in the exhaust purification action of the exhaust purification device 20 can be reduced. Further, the presence of the upper portion of the right wall 4B of the threshing device 4 and the recess 30 of the glen tank 7 makes it difficult for the atmospheric temperature of the DPF 21 and the SCR 22 to decrease, and the decrease in the exhaust gas purification action can be reduced.

  The portion of the left wall 7A located on the front side of the milling cylinder 18 is, as viewed from the front, the upper left wall 31 extending downward from the left end of the upper wall 7E and the lower left side from the lower end of the upper left wall 31. An upper inclined wall ("first wall" in the claims) 32 extending toward the bottom, and an intermediate left wall ("second wall" in the claims) 33 extending downward from the lower end of the upper inclined wall 32; A lower inclined wall (a “third wall” in the claims) 34 that extends downward from the lower end of the intermediate left wall 33 and a lower left wall 35 that extends downward from the lower end of the lower inclined wall 34. It is formed with. Moreover, the lower end part of the lower left wall 35 extends to the left end of the bottom wall 7F of the glen tank 7, and the bottom part of the bottom wall 7F extends in the front-rear direction to transfer the grains to the vertical discharge auger. A spiral 36 is provided.

  The downward inclination angle θ1 of the upper inclined wall 32 is formed to be steeper than the downward inclination angle θ2 of the lower inclined wall 34. Thereby, the grain conveyed to the Glen tank 7 by the cereal cylinder 18 can be smoothly dropped to the lower part of the Glen tank 7, and the grain can be efficiently conveyed by the conveying spiral 36. The downward inclination angle θ1 of the upper inclined wall 32 is preferably formed to be steeper than the repose angle at which the grain can fall by its own weight. In this embodiment, the downward inclination angle θ1 of the inclined wall 32 is set to the body frame 1. It is formed at an inclination angle of 45 degrees to the lower right with respect to the upper surface. The downward inclination angle θ2 of the lower inclined wall 34 is formed at a left downward inclination angle of 30 degrees with respect to the upper surface of the body frame 1 in order to increase the storage capacity of the Glen tank 7. Further, the intermediate left wall 33 that connects the upper inclined wall 32 and the lower inclined wall 34 is formed at a position that is biased to the right side of the conveying spiral 36. Thereby, the grain conveyed to the grain tank 7 by the cereal cylinder 18 can be smoothly dropped by the lower part of the grain tank 7. In the present embodiment, the intermediate left wall 33 extends vertically downward from the lower end of the upper inclined wall 32, but is arranged with the lower end portion of the upper inclined wall 32 positioned on the left side of the upper end portion. You can also.

  The outer peripheral portion of the exhaust emission control device 20 is covered with a cover 40, and the cover 40 extends from a portion of the horizontal frame 16 positioned on the right side of the SCR 22 toward the upper side and from the upper end of the right cover 41. An upper right inclined cover ("right cover" in the claims) 42 extending upward on the left side, and an upper left inclined cover ("left cover" in the claims) extending from the left end of the upper right inclined cover 42 toward the lower left side 43 and a left cover 44 extending from the left end of the upper left inclined cover 43 toward the lower side and reaching the portion of the horizontal frame 16 located on the left side of the DPF 21. Thereby, accumulation of soot and the like on the outer peripheral portion of the exhaust purification device 20 such as DPC can be prevented, and ignition of the soot and the like can be prevented.

  Further, in the front view, the upper right inclined cover 42 and the upper left inclined cover 43 are formed in a substantially mountain shape, and in FIG. 6, the right downward inclination of the upper right inclined cover 42 is formed to be gentler than the left downward inclination of the upper left inclined cover 43. However, on the contrary, the right-side downward slope of the upper right slope cover 42 can be formed to be steeper than the left-side downward slope of the upper left slope cover 43. Thereby, the accumulation | aggregation on the upper right inclination cover 42, such as a rice cake mixed in the grain discharged | emitted from the discharge auger 8, can be prevented.

  As shown in FIGS. 9 to 12, the portion of the left wall 7 </ b> A located on the rear side of the cereal cylinder 18 has a convex left wall 51 and a convex part located on the left side of the cereal cylinder 18 in plan view. A convex front wall 52 extending from the front end of the left wall 51 toward the right front and a convex rear wall 53 extending from the rear end of the convex left wall 51 toward the right rear are formed. . Moreover, the part of the left wall 7A located on the rear side of the cereal cylinder 18 includes a convex upper wall 54 and a convex upper wall located on the lower side of the input part 19 of the cereal cylinder 18 in a front view. 54 is formed of a convex left wall 51 extending downward from the left end of 54 and a convex bottom wall 55 extending downward from the lower end of the convex left wall 51 to the right. The downward inclination angle θ3 of the convex bottom wall 55 is preferably formed to be steeper than the repose angle at which the grain can fall by its own weight. In this embodiment, the downward inclination angle of the convex bottom wall 55 θ3 is formed at the same angle as the downward inclination angle θ1 of the upper inclined wall 32. Thereby, the grain conveyed to the rear part of the Glen tank 7 by the cereal cylinder 18 can be smoothly dropped to the lower part of the Glen tank 7, and the grain can be efficiently conveyed by the conveying spiral 36.

  On the rear wall 53 of the convex portion located on the rear side with a predetermined interval from the rear exhaust pipe 11 of the exhaust purification device 20, it is stored in the plurality of Glen tanks 7 with a predetermined interval in the vertical direction. A sensor 56 for detecting the grain is provided. In the present embodiment, three sensors 56 are provided at the lower part, the intermediate part, and the upper part of the convex rear wall 53. Thereby, the overheating of the sensor 56 due to the residual heat of the exhaust gas discharged to the outside from the rear exhaust pipe 11 is suppressed, and the malfunction of the sensor 56 can be prevented.

  Further, the grain stored in the Glen tank 7 is full in the middle in the front-rear direction of the upper wall 54 of the convex portion that is located on the rear side at a predetermined interval from the rear exhaust pipe 11 of the exhaust purification device 20. A sensor 57 is provided for detecting that Thereby, the overheating of the sensor 57 due to the residual heat of the exhaust gas discharged to the outside from the rear side exhaust pipe 11 is suppressed, and the malfunction of the sensor 56 can be prevented.

  A conveying spiral 18A for transferring the grain from the lower part to the upper part is provided inside the whipping cylinder 18, and a pair of conveying blades 18B are provided on the upper part of the conveying spiral 18A extending to the input part 19. Thereby, the grain transferred to the input part 19 by the conveying spiral 18A can be efficiently discharged toward the Glen tank 7 by the conveying blade 18B.

  An upper guide (a “first guide” in the claims) 58 and a lower guide (a “second guide” in the claims) 59 that extend along the outer periphery of the conveying blade 18B are provided in the inner peripheral portion of the insertion portion 19. Is provided. The upper guide 58 has a straight guide portion 58A extending from the left middle of the insertion portion 19 toward the right front in a plan view, and a curve extending curved from the front end portion of the straight guide portion 58A toward the right rear. The guide portion 58B is formed. Further, the lower guide 59 is formed by a straight guide portion extending from the left middle of the insertion portion 19 toward the right front in plan view. Thereby, the grain conveyed by the whipping cylinder 18 is discharged | emitted equally from the input part 19 to the front part and the rear part of the Glen tank 7, and a lot of grains can be stored in the Glen tank 7. In the present embodiment, the width of the upper guide 58 in the vertical direction and the width of the lower guide 59 in the vertical direction are the same in a side view, but the Glen tank is located in front of the charging unit 19. 7, the vertical width of the upper guide 58 and the vertical width of the lower guide 59 are changed according to the front storage capacity of 7 and the rear storage capacity of the Glen tank 7 located behind the input portion 19. Is preferred. That is, when the rear storage capacity of the Glen tank 7 is larger than the front storage capacity, it is preferable that the upper guide 58 is formed so that the vertical width of the upper guide 58 is larger than the vertical width of the lower guide 59.

  Next, a transmission diagram in which the output rotation of the engine E is transmitted to the fan 74, the discharge auto 8 and the compressor 81 will be described. As shown in FIG. 13, the output rotation of the engine E is wound around the pulley 70A supported by the output shaft 70 of the engine E, the pulley 72A supported by the input shaft 72 of the gear box 71, and the pulley 70A and the pulley 72A. It is transmitted to the input shaft 72 of the gear box 71 via the rotated belt 83. The belt 83 is provided with a tension arm 83A that tensions or relaxes the tension of the belt 83.

  The rotation of the input shaft 72 of the gear box 71 was wound around the pulley 72B supported by the input shaft 72 of the gear box 71, the pulley 75B supported by the rotation shaft 75 of the fan 74, and the pulley 72B and the pulley 75B. It is transmitted to the rotating shaft 75 of the fan 74 via the belt 84. As a result, the fan 75 rotates clockwise as viewed from the rotational axis of the rotary shaft 75, sucks outside air into the engine room 6, and is supplied to the radiator 76 and the engine E that cool the cooling water circulating around the engine E. It is possible to cool the intercooler 77 that cools the air.

  Further, the rotation of the input shaft 72 of the gear box 71 is caused by the gear 72C supported by the input shaft 72 of the gear box 71 and the output shaft 73 of the gear box 13 via the gear 73C supported by the output shaft 73 of the gear box 71. It is transmitted to.

  The rotation of the output shaft 73 of the gear box 71 was wound around the pulley 73A supported by the output shaft 73 of the gear box 71, the pulley 75A supported by the rotation shaft 75 of the fan 74, and the pulley 73A and the pulley 75A. It is transmitted to the rotating shaft 75 of the fan 74 via the belt 85. As a result, the fan 74 can rotate counterclockwise as viewed from the rotational axis of the rotary shaft 75 and exhaust the heated inside air in the engine room 6 to the outside of the engine room 6.

  The belt 84 is provided with a tension arm 84A that tensions or relaxes the tension of the belt 84, the belt 85 is provided with a tension arm 85A that tensions or relaxes the tension of the belt 85, and the tension arm 84A and the tension arm 85A are Switching operation is performed by one motor. That is, when the tension of the belt 84 is tensioned by the tension arm 84A by the motor, the tension arm 85A relaxes the tension of the belt 85, and the rotation shaft 75 of the fan 74 is transmitted to the rotation of the input shaft 72 of the gear box 71. Then, the fan 74 rotates in the clockwise direction as viewed from the rotation axis of the rotation shaft 75. On the other hand, when the tension arm 84A relaxes the tension of the belt 84 by the motor, the tension arm 85A tensions the tension of the belt 85, and the rotation shaft 75 of the fan 74 rotates the output shaft 73 of the gear box 71. Is transmitted, and the fan 74 rotates counterclockwise as viewed from the rotational axis of the rotary shaft 75. Thereby, the outside air can be sucked and the heated inside air can be exhausted by one fan 74, and the tension arm 84A and the tension arm 85A are operated by one motor. A large space can be secured.

  The output rotation of the engine E is via a pulley 70B supported by the output shaft 70 of the engine E, a pulley 79B supported by the input shaft 79 of the bevel gear box 78, and a belt 86 wound around the pulley 70B and the pulley 79B. Is transmitted to the input shaft 79 of the bevel gear box 78.

  Further, the rotation of the input shaft 79 of the bevel gear box 78 is caused by the rotation of the output shaft of the bevel gear box 78 via the gear 72A supported by the input shaft 79 of the bevel gear box 78 and the gear 80A supported by the output shaft 80 of the bevel gear box 78. 80. The output shaft 80 is equipped with a transport spiral 36. The rotation of the output shaft 80 is transmitted to the discharge auger 8 by increasing / decreasing the rotational speed in the auger gear box 8A provided on the rear side of the grain tank 7.

  The rotation of the output shaft 73 of the gear box 71 was wound around the pulley 73B supported by the output shaft 73 of the gear box 71, the pulley 82B supported by the input shaft 82 of the compressor 81, and the pulley 73B and the pulley 82B. The compressor 81 is started by being transmitted to the input shaft 82 of the compressor 81 via the belt 87. The belt 87 is provided with a tension arm 87A for tensioning or relaxing the tension of the belt 87.

  Next, a belt stopper that prevents the belt 83 wound around the pulley 70A supported by the output shaft 70 of the engine E and the pulley 72B supported by the input shaft 72 of the gear box 71 from falling off will be described. As shown in FIGS. 14 and 15, a fan 74 that sucks outside air and exhausts the inside air heated by the engine E or the like is provided between the engine E and the radiator 76 in the engine room 6. Is provided with an intercooler 77. Between the engine E and the fan 74, a pulley 70A supported by the output shaft 70 of the engine E, and a pulley 70A and a pulley 75A supported by the rotating shaft 75 of the fan 74 are provided.

  The belt stopper 90 is provided so as to cover the upper side, the front side, and the lower side of the outer peripheral portion of the belt 83 wound around the pulley 70A. As shown in FIG. 16, the belt stopper 90 includes a belt stopper main body 91 that covers the outer periphery of the belt 83, a main body support 92 that supports the outer periphery of the belt stopper main body 91, and a lower portion of the main body support 92. , And a front arm 94 and a rear arm 95 that detachably fix the stay 93 to the right side of the engine E.

  The belt stopper main body 91 is formed in a substantially hexagonal shape in which a plate-like plate is bent and one side located in the rear part is opened in a side view. Further, the width of the belt stopper body 91 in the left-right direction is formed wider than the width in the left-right direction of the pulley 70A.

  The main body support portion 92 is formed in a substantially hexagonal shape by cutting a plate-like plate and opening one side located at the rear portion in a side view. Further, the inner peripheral portion of the main body support portion 92 is formed in the same shape as the outer peripheral portion of the belt stopper main body 91. Thereby, the belt stopper main body 91 can be firmly supported by the main body support portion 92, and deformation of the belt stopper main body 91 can be prevented.

  The stay 93 is formed by cutting an angle-shaped member, and the top of the angle is provided on the lower right side so as to have an inverted L shape when viewed from the front, and the horizontal portion 93A is provided extending from the top to the left to provide a vertical portion. 93B extends from the top to the upper side. The main body support portion 92 is fixed to the right surface of the vertical portion 93B, and a nut for fastening a bolt for fixing the main body support portion 92 is provided on the left surface of the vertical portion 93B. The stay 93 is provided on the front side of the trajectory of the tension arm 86A. Thereby, a large rotation area of the tension arm 86A can be secured, and the tension of the belt 86 can be easily adjusted.

  The front arm 94 is formed by bending a round bar into a crank shape. The front arm 94 extends from the front portion of the stay 93 toward the front upper side in a side view, and extends to the left side from the upper surface of the horizontal portion 93A of the stay 93 in a front view, and the lower horizontal portion 94A. The vertical portion 94B is bent at the left end portion and extends upward, and the upper horizontal portion 94C is bent at the upper end portion of the vertical portion 94B and extends toward the left side. A lower horizontal portion 94A extending leftward from the upper surface of the horizontal portion 93A, a vertical portion 94B extending toward the front side by bending at the left end portion of the lower horizontal portion 94A, and bent at the front end portion of the vertical portion 94B It is formed from an upper horizontal portion 94C extending toward the left side. Thus, the vertical position of the belt stopper 90 can be easily adjusted. A washer 94D is provided on the right side of the upper horizontal portion 94C, and a screw 94E is formed on the left side of the upper horizontal portion 94C. Thereby, the front arm 94 can be easily fixed to the engine E.

  The rear arm 95 is formed by bending a round bar into a crank shape. The rear arm 95 extends from the rear portion of the stay 93 toward the rear upper side in a side view, and extends to the left side from the upper surface of the horizontal portion 93A of the stay 93 in a front view, and a lower horizontal portion. The vertical portion 95B is bent at the left end portion of 95A and extends upward, and the upper horizontal portion 95C is bent at the upper end portion of the vertical portion 95B and extends toward the left side. A lower horizontal portion 95A extending to the left side from the upper surface of the horizontal portion 93A, a vertical portion 95B bent at the left end portion of the lower horizontal portion 95A and extending toward the rear side, and a rear end portion of the vertical portion 95B. The upper horizontal portion 95C is bent and extends toward the left side. Thus, the vertical position of the belt stopper 90 can be easily adjusted. A washer 95D is provided on the right side of the upper horizontal portion 95C, and a screw 95E is formed on the left side of the upper horizontal portion 95C. Thereby, the front arm 94 can be easily fixed to the engine E.

  The front arm 94 and the rear arm 95 are respectively fixed to the front and rear portions of the stay 93, and are provided in a substantially inverted C shape in a side view. Thereby, it can suppress that the front side arm 94 and the rear side arm 95 deform | transform by the vibration of the engine E in the front-back direction.

  Next, a method for fixing the pitching cylinder will be described. As shown in FIG. 17, the left main frame 1A of the body frame 1 supports the left crawler 2A of the traveling device 2, and the right main frame 1B of the body frame 1 supports the right crawler 2B of the traveling device 2. ing.

  On the right side of the left main frame 1A, a left rolling cylinder 62A that controls the tilting posture of the aircraft in the left-right direction is provided. On the left side of the right main frame 1B, the right rolling cylinder 62B that controls the tilting posture of the aircraft in the left-right direction. Is provided. The left rolling cylinder 62 </ b> A is connected to a connecting shaft 64 that extends in the left-right direction via the arm 63.

  A pitching cylinder 65 is provided at the rear of the right main frame 1B, and the center of the pitching cylinder 65 is biased to the left of the center in the left-right direction of the right main frame 1B in plan view. The pitching cylinder 65 is connected to the connecting shaft 64 via the arm 68. Thereby, the overhang amount of the arm 68 can be reduced.

4 Threshing device 4B Right wall 5 Control unit 6 Engine room 7 Glen tank 7A Left wall 18 Flouring cylinder 19 Input unit 20 Exhaust gas purification device 22 SCR
30 Recess 32 Upper inclined wall (first wall)
33 Inner left wall (second wall)
34 Lower inclined wall (third wall)
58 Upper guide (first guide)
58A Straight guide portion 58B Curve guide portion 59 Lower guide (second guide)
E Engine θ1 Downward tilt angle (first tilt angle)
θ2 Downward tilt angle (second tilt angle)

Claims (2)

An engine room (6) containing the engine (E) is provided at the lower part of the control unit (5), a Glen tank (7) is provided on the rear side of the control unit (5), and a left side of the Glen tank (7) is provided. A threshing device (4) is provided, and a cerealing cylinder (18) for conveying the grain is provided from the lower part of the right wall (4B) of the threshing device (4) to the upper part of the left wall (7A) of the Glen tank (7). In the combine, an exhaust purification device (20) for purifying the exhaust gas of the engine (E) is provided between the threshing device (4) and the Glen tank (7), and a left wall of the Glen tank (7) ( 7A), a recess (30) in which only the front side and the left side are opened is formed in the front side of the milling cylinder (18), and the wall of the glen tank (7) is formed on the wall forming the recess (30). A first wall (32 extending from the left upper part of the left wall (7A) toward the lower right side A second wall (33) extending downward from the lower end of the first wall (32), and a third wall (34 extending downward from the lower end of the second wall (33) to the left side. ) wherein the provided in exhaust KiKiyoshi apparatus (20), the SCR (22) for purifying by reduction of nitrogen oxide material in the exhaust gas with ammonia generated from the urea water, the recess (30) in Placed in ,
A first guide (58) that guides the grain toward the rear part of the grain tank (7) into the input part (19) formed at the upper end of the cereal cylinder (18), and the grain tank ( 7) A second guide (59) for introducing and guiding the grain toward the front portion is provided, and the first guide (58) extends from the input portion (19) toward the front right side ( 58A) and a curved guide portion (58B) which is curved at the front end portion of the linear guide portion (58A) and extends to the rear side on the right side, and the second guide (59) is formed on the right side from the input portion (19). Extend forward,
Reservoir capacity of a portion of the Glen tank (7) located on the rear side of the charging portion (19) rather than a storage capacity of the portion of the Glen tank (7) positioned on the front side of the charging portion (19). Forming a large
The first guide (58) is disposed above the second guide (59), and the vertical width of the first guide (58) is larger than the vertical width of the second guide (59). Combine that features.   A first inclination angle (θ1) that is an inclination angle of the first wall (32) downward to the right side is set to be greater than a second inclination angle (θ2) that is an inclination angle of the third wall (34) to the lower left side. The combine according to claim 1 set to a steep slope.

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