KR20180110108A - combine - Google Patents

Abstract

A traveling base 1 forming a traveling section 2 and an engine 7 and a traveling section 2 having a traveling section 2 And a hydraulic continuously variable transmission (64) for driving the traveling base (1), wherein the traveling base (1) is divided into upper and lower multi-stage structures An operating oil tank 55 for supplying operating oil to the hydraulic CVT 64 above the transmission case 63 is mounted between the lower base frame 1a and the upper base frame 1b.

Description

combine

The present invention relates to a combine equipped with a preliminary part for taking a curved section of a field that has not yet been wrapped and a threshing section for deviating from the curved section of the preliminary section.

BACKGROUND ART [0002] Conventionally, there has been known a conventional method in which grains are taken out from a threshing portion through a grain discharging conveyor, a preheating portion having a grain header, a feeder house and a blade, a threshing portion having a trunk, (See Patent Documents 1 to 3). [0004] In order to solve the above problems, the present inventors have proposed a technique of continuously feeding a grain bundle of a threshing portion to a rice bag in a rice receiving portion.

Japanese Patent Application Laid-Open No. 11-103646 Japanese Patent Application Laid-Open No. 9-28173 Japanese Patent No. 3554144

In a harvesting operation in a small-sized package, a combine having a lightweight structure capable of compacting the entire gas while securing the cutting width of the grooves is desired. In the prior art, when the swash plate is arranged in the left-right direction of the traveling body, the front-rear width of the swash plate can be reduced compared with the structure in which the swash plate is arranged in the forward and backward direction of the traveling body. However, There is a structural problem such that the miniaturization of the combine as a whole can not be easily considered. Patent Documents 1 to 3 have a hydraulic continuously variable transmission formed in a transmission case for driving a traveling portion and an oil cooler and a cooling fan for cooling operating oil of the hydraulic CVT. However, Patent Documents 1 to 3 There is a problem in the structure that the driving part driving structure suitable for the engine of small output mounted on the combine of the small size and light structure can not be easily configured because it is the driving part driving structure suitable for the large output engine. For example, the threshing portion is mounted on the upper surface of the traveling body in the transverse posture toward the left and right, the engine and the rice receiving portion are disposed behind the threshing portion, and the rice and the rice receiving portion are arranged in the rear portion of the traveling body, There is a structural problem such that a compact and lightweight structure combine can not be constructed by joining a part and a control column.

Therefore, the present invention intends to provide an ordinary type combine which is improved by examining the present situation.

In order to attain the above object, a combine according to claim 1 of the present invention is a combine comprising: a preload part having a blade; a threshing part having a tilt; a traveling gas forming a traveling part and an engine; a transmission case for driving the traveling part; A combine having a continuously variable transmission and supplying a curved portion from the preload portion to the threshing portion, the combine comprising: a hydraulic damper disposed between an upper gas frame and a lower gas frame forming the traveling gas in a vertically multi- And an operating oil tank for supplying operating oil to the engine.

According to a second aspect of the present invention, in the combine according to the first aspect, the threshing section is mounted on the upper surface of the traveling body in a transversely oriented posture and the engine and the rice receiving section are arranged behind the threshing section, The engine is mounted on the upper surface of the base frame and the front end side of the lower base frame is extended forward from the front end side of the upper base frame and the hoisting portion is placed on the upper surface of the front lower end side of the lower base frame, And the working oil tank is disposed below the rear portion of the engine and the front side of the engine.

According to a third aspect of the invention, there is provided the combine according to the first aspect, wherein the transmission case is provided with a transmission case, a rice receiving portion and a steering column on the rear portion of the traveling vehicle, And a hydraulic pipe for hydraulic connection of the working oil tank is formed between the lower gas frame and the upper gas frame.

According to a fourth aspect of the invention, there is provided the combine according to the first aspect, wherein the threshing section is mounted on the upper surface of the traveling body in a transversely oriented posture, the working oil tank is disposed in the rear of the threshing section, An oil filter or the like is built in the hydraulic oil tank, a main oil cap is formed on the upper surface of the hydraulic oil tank, and a drain cap is formed on the lower part of the front surface of the hydraulic oil tank will be.

According to a fifth aspect of the invention, there is provided the combine according to the first aspect, wherein the mission case is disposed at the rear portion of the running vehicle, and the threshing portion is mounted on the upper surface of the running vehicle in a lateral posture, Wherein the intermediate shaft is formed at a transmission diameter between the engine and the hydraulic CVT, and the engine and the pulley accommodating portion are disposed in the left and right rear portions of the engine, And an oil cooler and a cooling fan for cooling the operating oil of the engine are provided in the vicinity of the intermediate shaft.

According to a sixth aspect of the present invention, in the combine according to the first aspect, the working oil tank is supported by the vertical gas frame connecting the lower gas frame, the lower gas frame and the upper gas frame.

According to a seventh aspect of the invention, there is provided the combine according to the first aspect, wherein the first hydraulic oil supply port is hydraulically connected to the hydraulic CVL, and the second hydraulic oil supply port is hydraulically connected to the hydraulic cylinder for lifting and lowering the cut- And is disposed on the front and rear sides of the working oil tank.

The invention according to claim 8 is the combine according to claim 7, further comprising: a flange member having the first or second working oil supply port disposed therein and freely detachably mounted on a side surface of the working oil tank; A pair of oil filter units each having an oil filter are mounted on the front and rear side surfaces of the hydraulic oil tank and partially overlapped in the front and rear direction and the left and right direction in the hydraulic oil tank.

According to the invention as set forth in claim 1, there is provided an automatic transmission comprising a preload part having a blade, a threshing part having a tilt, a traveling gas forming a traveling part and an engine, a transmission case for driving the traveling part and a hydraulic CVT, And an operating oil tank for supplying operating fluid to the hydraulic continuously variable transmission at the upper portion of the transmission case is provided between the lower gas frame and the upper gas frame which form the traveling gas in the upper and lower multi- It is possible to easily secure the installation place of the working oil tank at a lower cooling efficiency than the engine without limiting the size of the working oil tank. It is possible to easily construct a drive portion drive structure suitable for an engine of small output mounted on a compact and lightweight combine. For example, the threshing portion is mounted on the upper surface of the traveling body in a transverse arrangement posture in the lateral direction, and the engine and the rice receiving portion are arranged behind the threshing portion. In addition, the rear portion of the traveling vehicle, A combine having a small and lightweight structure can be constructed by arranging a rice receiving portion and a steering column on the rear portion.

According to a second aspect of the present invention, there is provided a structure in which the threshing section is mounted on an upper surface of a traveling airframe in a transversely oriented posture, and an engine and a rice receiving section are disposed behind the threshing section, And the front end side of the lower gas frame is extended in front of the front end side of the upper gas frame to place the threshing portion on the upper side of the front end side of the lower gas frame, The hydraulic oil tank can be simply disposed under the space between the threshing section and the engine even if the gas is constructed compactly by bringing the engine close to the rear of the threshing section in the transverse arrangement posture Can support.

According to a third aspect of the present invention, there is provided a structure in which a transmission case, a rice receiving portion, and a steering column are juxtaposed to the rear portion of the traveling vehicle, wherein the hydraulic case includes a hydraulic CVT, Since the pipe is extended between the lower gas frame and the upper gas frame, the lower gas frame and the upper gas frame surround the upper and lower sides of the hydraulic pipe, the hydraulic pipe is surrounded by the hydraulic oil tank, Can be easily protected. A space for installing the hydraulic oil tank and the hydraulic oil pipe can be ensured at a position lower than the engine (lower side of the upper gasket frame), and a hydraulic piping structure for connecting the hydraulic oil tank at the front of the engine and the hydraulic CVT at the rear of the engine It is possible to simplify the installation workability of the hydraulic piping.

According to a fourth aspect of the present invention, there is provided a hydraulic control apparatus for a vehicle, comprising: a hydraulic motor which is mounted on an upper surface of a traveling body in a transversely oriented posture in a transverse direction; and the hydraulic oil tank is disposed rearwardly of the threshing portion, An oil filter or the like is built in the hydraulic oil tank, a main oil cap is formed on the upper surface of the hydraulic oil tank, and a drain cap is formed on the lower front of the hydraulic oil tank. A work space relating to the working oil tank can be easily secured between the front portion and the front portion of the engine. For example, it is possible to easily perform opening and closing operations of the main cap or the drain cap. It is possible to simplify the attaching / detaching operation of the operating oil tank, the connecting operation of the hydraulic pipe, the operation of replenishing the operating oil to the operating oil tank, and the maintenance such as the replacement of the oil filter can be easily performed.

According to the invention as set forth in claim 5, the transmission case is arranged on the rear portion of the traveling vehicle, and the above-mentioned threshing portion is mounted on the upper surface of the traveling body in the transversely oriented posture, and the engine and the rice receiving portion are disposed behind the above- And an oil cooler which forms an intermediate shaft at a transmission diameter between the engine and the hydraulic CVT, and which cools the operating oil of the hydraulic CVT, and a structure in which a rice receiving section and a steering column are juxtaposed on left and right rear sides of the engine, And the cooling fan are provided in the vicinity of the intermediate shaft. Therefore, it is possible to easily constitute the drive part drive structure having high running performance by including the hydraulic continuously variable transmission, the oil cooler and the cooling fan, The combine can be easily configured.

According to the invention as set forth in claim 6, since the working oil tank is supported by the vertical base frame connecting the lower base frame and the lower base frame to the upper base frame, And the working oil tank can be firmly supported on the vertical gas frame and the working oil tank can be disposed in the space surrounded by the upper gas frame, the lower gas frame and the vertical gas frame, thereby preventing the detachment of the working oil tank and the damage due to foreign matter collision So that safety can be improved.

According to a seventh aspect of the present invention, there is provided a hydraulic power transmission device comprising: a first hydraulic oil supply port that is hydraulically connected to the hydraulic CVL; and a second hydraulic oil supply port that is hydraulically connected to the hydraulic cylinder for lifting and lowering the cut- A supply hydraulic pressure pipe connected to the hydraulic CVL and a supply hydraulic pressure pipe connected to the hydraulic cylinder for elevation can be divided into front and rear sides of the hydraulic oil tank and connected to the hydraulic oil tank. The supply hydraulic pipes can be accessed, so that the maintenance workability of the supply hydraulic pipes and the separating operation can be improved.

According to an eighth aspect of the present invention, there is provided a hydraulic pump comprising: a flange member in which the first or second hydraulic oil supply port is disposed and which is freely detachably mounted on a side surface of the hydraulic oil tank; The oil filter unit of the oil filter unit is mounted on the front and rear sides of the hydraulic oil tank so that it can be accessed from any of the two oil filter units before and after the hydraulic oil tank. The maintenance property is improved. In addition, since the pair of oil filter units are partially overlapped in the front-rear direction and the left-right direction in the operating oil tank, both the oil filter units can be disposed at the same height position, The arrangement area of the filter unit can be reduced, and further, the working oil tank can be made compact. Further, if the both oil filter units are mounted on the hydraulic oil tank at a position higher than the crawler track constituting the traveling portion, the attachment / detachment operation of the oil filter unit can be easily performed from the side of the traveling vehicle, and the maintenance property is improved .

1 is a left side view of an ordinary type combine showing the first embodiment of the present invention.
2 is a plan view of the combined combine.
3 is a right side view of the combined combine.
4 is an enlarged explanatory view of Fig.
Fig. 5 is an enlarged explanatory view of Fig. 2. Fig.
Fig. 6 is an enlarged explanatory view of Fig. 3. Fig.
7 is a perspective view of the traveling vehicle viewed from the left rear side.
8 is an enlarged explanatory view of Fig.
Fig. 9 is a perspective view of the traveling gas viewed from the right front.
10 is an enlarged explanatory view of FIG.
11 is a driving system diagram of a normal type combine.
12 is a hydraulic circuit diagram of a normal type combine.
13 is a right side view illustrating the drive transmission portion of the engine.
Fig. 14 is an enlarged explanatory view of Fig. 13. Fig.
15 is a right side sectional view of the threshing portion.
16 is a right side view of the traveling vehicle and the mission case portion.
17 is a plan view of the traveling vehicle and the mission case part.
18 is a perspective view of the traveling vehicle and the mission case portion seen from the right front side.
19 is a perspective view of the mission case portion seen from the right front side.
20 is a hydraulic circuit diagram showing a modified example of Fig.
21 is a hydraulic circuit diagram showing a modified example of Fig.
22 is a drive system diagram showing the second embodiment.
23 is a left side view of a traveling body and a mission case portion according to a second embodiment.
24 is an explanatory left view showing the drive transmission portion of the engine showing the second embodiment.
Fig. 25 is a perspective view of a traveling vehicle viewed from the left rear side showing the second embodiment. Fig.
Fig. 26 is a perspective view of a running vehicle as viewed from the right front side showing the second embodiment. Fig.
Fig. 27 is a plan view of a traveling body and a mission case portion showing the second embodiment. Fig.
28 is an enlarged explanatory view of Fig.
29 is a right side view of a traveling body and a mission case portion according to a third embodiment.
30 is a plan view of a traveling body and a mission case portion according to a third embodiment.
31 is a perspective view of a traveling vehicle and a mission case portion seen from the right front side, showing the third embodiment.
32 is a right side sectional view of the running vehicle and the working oil tank according to the third embodiment.
33 is a plan sectional view of the running vehicle and the working oil tank.
34 is a perspective view of an operating oil tank viewed from the left rear side showing the third embodiment.
Fig. 35 is an exploded view of an operating oil tank viewed from the left front side showing the third embodiment. Fig.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment embodying the present invention will be described based on drawings (Figs. 1 to 15) applied to an ordinary combine. First, a schematic structure of an ordinary combine will be described with reference to Figs. 1 to 6. Fig. In the following description, the left side toward the advancing direction of the traveling base 1 will be referred to simply as the left side, and the right side toward the advancing direction will be simply referred to as the right side.

As shown in Figs. 1 to 6, an ordinary combine in the embodiment has a traveling base 1 supported by a pair of left and right crawler tracks 2 of a rubber crawler as a traveling part. On the whole of the running vehicle 1, a preloading section 3 for cutting and blowing uncut grooves such as rice (or barley) is mounted so as to be movable up and down by a single-acting elevating hydraulic cylinder 4.

On the upper surface of the front portion of the running vehicle 1, a threshing portion 9 for performing a threshing process on the cut-out portion supplied from the pre-loading portion 3 is mounted. Inside the threshing section 9, a swash plate 21 serving as a slicing and separating rotor to be described later is disposed. On the rear right side of the traveling base 1, there is mounted a driving operation section 5 which the operator controls while walking. An engine (7) as a power source for each part of the combine is arranged at the center of the running vehicle (1). A rice receiving portion 6 for extracting the curvature from the threshing portion 9 is disposed on the rear left side of the traveling base 1 (the left side room of the driving control portion 5). The grains in the threshing section 9 are taken out by the grainy discharge conveyor 8 toward the rice paddies 6. And a conveying forming duct body 10 serving as a curl separating section for performing sorting of the toned material is provided at the conveying longitudinal end portion of the curling discharge conveyor 8 in the front lower (lower) height posture.

The preloading section 3 is provided with a feeder house 11 communicating with a feed supply section of the entire threshing section 9 and a grain header 12 on a transverse length bucket extending from the front end of the feeder house 11. And rotatably supports the rake auger 13 (flat groove auger) in the grain header 12. A rake reel 14 to which a tine bar is attached is disposed above the rake auger 13 in its entirety. A varicolored blade 15 is disposed on the whole of the grain header 12. The left and right milling cutters 16 are protruded and formed on the left and right sides of the whole of the grain header 12. Further, a feed conveyor 17 is built in the feeder house 11. The lower portion of the feeder house 11 and the front end of the traveling base 1 are connected to each other through the lifting hydraulic cylinder 4 and the cutoff input shaft 18 (feeder house conveyor shaft) , The preload unit (3) moves up and down to the lifting hydraulic cylinder (4).

With the above arrangement, the blade side of the curled yarn between the left and right flesh knives 16 is raked by the raking reel 14, and the yarn that has not yet been cut is cut by the blade 15, The cutaway gaps are collected in the vicinity of the inlet of the feeder house 11 at the center of the left and right width of the grain header 12 by the rotational drive of the feeder 13. The total amount of the cutting grooves of the grain header 12 is conveyed by the feed conveyor 17 in the feeder house 11 and fed from the feed supply plate 9a formed at the left side of the threshing section 9 into the feed chamber 22 So as to be supplied.

4 to 6, a twist 21 is rotatably formed in the feed chamber 22 of the threshing section 9. As shown in Fig. (21) is axially supported on a feeding shaft (20) extending in the left and right direction of the traveling base (1). On the lower side of the swash plate 21, a water tube 24 for depressing the curved grains is attached and formed. In addition, a supply supply plate 9a communicating with the intermittent transfer end side of the supply conveyor 17 is formed at the lower left of the supply chamber 22 while a discharge opening 23 is formed at the lower right side of the supply chamber 22 . The feeder 11 is mounted on the left end of the threshing section 9 so as to be movable in the longitudinal direction of the feeder body 1, And the moving direction of the cut-off curves in the feeder house 11 and the threshing portion 9 in the right and left lateral positioning posture is changed in the orthogonal direction.

With the above arrangement, the cut curved portion inserted from the feed plate 9a by the feed conveyor 17 is transported from the left side to the right side of the traveling base 1 by the rotation of the flywheel 21, ) And the water pipe (24). The grains, such as grains smaller than the mesh of the water column 24, extend from the water column 24. The straw crumbs and the like that do not come from the water supply network 24 are transported from the delivery port 23 on the lower right side of the feeder 22 to the upper surface of the right crawler track 2 And is discharged to the bearing surface.

As shown in Figs. 4 to 6, the curl separating portion for sorting the debris comprises a duct forming duct body 10 disposed at a conveying end portion of the rear end side of the curled discharge conveyor 8 in the full- , And a suction fan unit (34) for introducing a sorting air to the air duct forming duct (10) to suck and discharge dust. The grains discharged from the water supply network 24 are tumbled by the sweep 21 and the grains discharged from the grapnel 24 are conveyed by the gravity take-out conveyor 36 and the grainy discharge conveyor 8 The debris carried in the duct forming body 10 and the debris carried into the duct forming duct body 10 are removed by the wind screening action of the suction fan unit 34 so that the heavy grain and the light straw straw As shown in FIG.

On the other hand, in the left side portion of the threshing section 9, a curled discharge conveyor 8 is formed between the threshing section 9 and the rice receiving section 6 in a posterior and posterior posture. The conveying leading end side of the front end of the curling discharge conveyor 8 is connected to the conveying end side of the left end of the curling takeout conveyor 36. [ And a curved take-out conveyor 36 is built in the curved takeout bottom portion of the V-shaped cross section of the threshing portion 9. [ The curled poured from the water passage 24 to the curled-up take-out conveyor 36 is conveyed from the left end of the curved takeout conveyor 36 to the front end of the curved discharge conveyor 8, (6) of the rice paddies (10) to be collected in the rice pockets (37) of the rice paddies (6).

That is, the rice receiving section 6 is provided with a rice receptacle 38 for connecting the left rear end of the running vehicle 1 via the pedestal support frame 38a, Receiving arm body 39a to be mounted through the through-holes 39a and 39b. In addition, by supporting the air duct forming duct body 10 at the upper end side of the supporting frame body 39 and forming the filling hopper 19 at the curved outlet of the air duct forming duct body 10, the rice receiving arm body 39a And the opening of the rice pouch 37 is attached to the filling hopper 19 so that the curled matter discharged from the filling hopper 19 is filled in the rice pouch 37. [

On the other hand, as shown in Figs. 4 to 6, the steering column 5 is provided with a steering column 41. The steering column 41 is provided with left and right side clutch levers 43 and 44 for changing the course of the traveling vehicle 1, a travel shift lever 45 for switching the traveling speed of the traveling vehicle 1, A work clutch lever 46 for driving or stopping the tread portion 3 or the hoisting portion 9 and a work piece lifting lever 47 for lifting and lowering the tread portion 3 and a parking brake lever 48 are arranged. A walking handle 49 is projected rearward on the rear side of the steering column 41 and an accelerator lever 40 is mounted on the left handle of the walking handle 49. The left and right side clutch levers 43 and 44, the lift lever 47 and the shift selector lever 45 are disposed in parallel in the left-right direction in this order from the right side on the upper surface side of the steering column 41, 44, 46, and 47, the operating shift position of the drive shift lever 45 is set higher than that of the other levers 43, 44, 46, 45 are supported laterally in the base and the side clutch levers 43, 44 and the cut-off lifting lever 47, which are frequently operated during the harvesting operation, are supported on the outside of the base.

As shown in Figs. 7 and 8, a driver's seat 42, on which the operator is standing, is detachably disposed behind the steering column 41. Fig. A driver's seat bracket 111 is formed at the right rear end of the running vehicle 1 and a front end portion of the driver's seat frame 112 is detachably fastened to the driver's seat bracket 111 by bolts. The rear end side of the driver's seat frame 112 extends substantially horizontally from the right rear end of the upper base frame 1b toward the rear and the driver's seat 42 is mounted at the rear end of the driver's seat frame 112, A driver's seat 42 is disposed behind the driver's operating section 5 via the frame 112 so that the operator who has left the driver's seat 42 is able to move the levers 43, , 47, 48, and the like.

7 and 8, the foot guard 114 is disposed between the foot of the operator and the rear end of the crawler track 2 on the left and right sides of the driver's seat 42. As shown in FIG. The guard supporting frame 115 is extended from the lower side of the driver's seat bracket 111 toward the lower side to secure the foot guard 114 to the guard supporting frame 115, Of the crawler track (2) is blocked by the under guard (114). The leg raised frame 112a is extended downward from the front and rear middle portions of the driver's seat frame 112 and the leg raised frame 113 is fixed to the lower end portion of the leg raised frame 112a, So that the legs of the operator who has left the elevator are raised on the leg elevator 113.

7 to 10, the left and right battery cores 32 and the ridge corners 33 are protruded downward on the lower surface of the running vehicle 1, The right and left track frames 50 are disposed through the respective crest bodies 32, The track frame 50 is provided with a drive sprocket 51 for transmitting the power of the engine 7 to the crawler track 2 and a tension roller 53 for supporting the drive sprocket 51 via a tension mechanism 53 for retaining the tension of the crawler track 2. [ And a plurality of track rollers 54 for holding the ground side of the crawler track 2 in a grounded state are formed. The front side of the crawler track 2 is supported by the tension roller 52 and the rear side of the crawler track 2 is supported by the drive sprocket 51 and the rear side of the crawler track 2 is supported by the track roller 54, The ground side is supported in a horizontal posture and the non-grounded side of the crawler track 2 is supported in a full-posterior posture.

Next, the driving structure of the combine will be described with reference to Figs. 7 to 14. Fig. As shown in Figs. 11 and 12, the transmission case 64 is formed in the transmission case 62 with the traveling hydraulic pump 30 and the traveling hydraulic motor 31 incorporated therein. The engine 7 is mounted on the central upper surface of the traveling base 1 and the transmission case 63 is disposed on the rear portion of the traveling base 1 behind the engine 7. [ The transmission drive pulley 69 on the engine output shaft 65 protruded from the engine 7 to the left side and the transmission input pulley 70 on the transmission input shaft 66 projected leftward from the transmission case 70 Is connected via the front running output belt 67a and the rear running output belt 67b.

The front running output belt 67a is tensioned by the tension roller type running clutch 68 and the power is transmitted from the engine 7 to the mission case 63 to drive the left and right crawler tracks 2 . 8 and 14, the input pulley fan 70a is fixed to the outboard side of the left side of the transmission input pulley 70, and the hydraulic pulley fan 70a is used to cool the hydraulic endless transmission 64 .

In addition, as shown in Figs. 10, 13 and 14, the intermediate frame 131 is formed to be inclined rearward on the running vehicle 1, and the intermediate shaft 131 A left intermediate pulley 133 and a right intermediate pulley 134 are integrally rotatably pivotally supported via a traveling clutch 68 between the traveling drive pulley 69 and the left intermediate pulley 133, The front side output belt 67a is hooked and the rear side output belt 67b is hooked between the right side intermediate pulley 134 and the speed change input pulley 70. [ The transmission case 70 is disposed on the rear side of the engine 7 with respect to the front and rear center lines of the vehicle and the mounting position of the transmission input pulley 70 is set to the mounting position of the traveling drive pulley 69, Toward the center.

The input pulley fan 70a supported by the transmission input pulley 70 on the rear end side of the rear output belt 67b is disposed on the rear side of the front output output belt 67a. The hydraulic infinitely variable transmission 64 can be integrally fixed on the upper portion of the transmission case 63 between the left and right crawler tracks 2 at the rear of the engine 7 and the engine 7 and the transmission case 63) are supported at the center of the width of the body (in the vicinity of the centerline around the center of the body) to form a good weight balance in the lateral direction of the body.

As shown in Figs. 7 to 11, Figs. 13 and 14, a counter shaft 72 for driving the preload portion 3 and the twist 21 is provided. The counter shaft 72 can be freely rotated on the upper surface side of the traveling base 1 (upper base frame 1b) through the left bearing body 71a and the right bearing body 71b. The threshing drive pulley 57 on the output shaft 65 protruded from the engine 7 to the left side and the counter shaft pulley 58 on the left end of the counter shaft 72 are connected through the threshing drive belt 59 . The tension drive belt 59 is tensed by the tension roller type work clutch 60 to transmit power from the engine 7 to the counter shaft 72. [

In addition, the counter shaft sprocket 73 is supported on the right end of the counter shaft 72 in the axial direction. The counter shaft sprocket 73 and the feed shaft input sprocket 74 at the right end of the feed shaft 20 are connected by a threshing drive chain 75 and the pulley 21 is driven through the counter shaft 72 . Further, the feeding end of the feeding sprocket 76 is supported at the right end of the feeding shaft 20. The curling feed sprocket 76 and the feeding input sprocket 77 at the right end of the curling takeout conveyor 36 are connected to the feeding drive chain 78 and the curling feed conveyor 36 is driven .

In addition, the conveying leading end side of the curled discharge conveyor 8 is connected to the left end of the curled-up take-out conveyor 36 through the curved discharge sprocket 79. The curved discharge conveyor 8 has a curved discharge chain 8a on an endless belt and a plurality of curled discharge plates 8b arranged equidistantly on the curved discharge chain 8a. A curved discharge chain 8a is hooked on the curved discharge sprocket 79 and the curved takeout conveyor 36 and the curved discharge conveyor 8 are interlocked with each other to drive the curled yarn taken out to the left end of the curled takeout conveyor 36, And is conveyed toward the air passage forming duct body (10) by a plurality of curled paper discharge bodies (8b).

The fan drive pulley 82 at the left end of the counter shaft 72 and the fan fan pulley 83 on the fan shaft 34a of the suction fan unit 34 are connected by the fan drive belt 84, 21 and the suction fan fan 34b of the suction fan unit 34 are linked and driven. The operation of the work clutch 60 of the work clutch lever 46 disposed at the left side of the maneuvering column 41 causes the crankshaft 9 Fan 34b) is driven at a constant speed.

Next, the driving structure of the preload portion 3 will be described with reference to Figs. 1 to 3, 7, 8, and 11. Fig. A feed sprocket 85 formed at the left end of the feed shaft 20 and a cut spool input sprocket 86 formed at the left end of the cut input shaft 18, (87). The feed 21 and the feed conveyor 17 are interlocked and driven through the cut-off input shaft 18 that supports the entire pre-loading section 3 so as to be movable up and down. A header driving shaft 91 is formed on the rear side of the left side of the grain header 12 of the preload 3 through a pair of header driving bearing bodies 141. The left end of the cut input shaft 18 is connected to the right end of the header drive shaft 91 through the header drive sprockets 88 and 89 and the header drive chain 90.

In addition, the grain header 12 is provided with a rake shaft 93 for axially supporting the rake auger 13. The left end of the header driving shaft 91 is connected to the left end of the rake shaft 93 via the rake driving chain 92 and the rake driving sprockets 94 and 95. And drives the rake auger 13 through the cutting input shaft 18 and the header drive shaft 91. [

Further, as shown in Figs. 1 to 3, the base end of the reel supporting frame 151 is fixed to the upper surface of the grain header 12. The right and left end portions of the reel shafts 96 are rotatably supported by the front ends of the left and right reel supporting frames 151. The reel shafts 96 are provided at both ends of the reel shafts. And supports the laying reel 14 via the left and right reel supporting frames 151 on the upper surface side of the grain header 12. [ Further, the left and right side surfaces of the grain header 12 are provided with a reel supporting arm 155 for supporting the middle portion of the left and right reel supporting frames 151.

A reel drive shaft 153 is formed on the right side of the grain header 12 and a reel drive sprocket 98 and a reel drive pulley 161 are supported by the reel drive shaft 153 in a dielectric- And the reel drive pulley 161 and the reel drive pulley 161 are integrally fixed. The reel driving chain 97 is hooked to the reel sprocket 99 and the reel driving sprocket 98 formed at the right end of the rake shaft 93. [ The reel drive belt 164 is engaged with the reel drive pulley 161 and the reel driven pulley 163 formed at the right end of the reel shaft 96. [

In addition, a reel driving tension pulley 166 is rotatably supported on the leading end of the reel driving tension arm 165. And the reel shaft 96 is linked to the header drive shaft 91 through a reel drive chain 97 and a reel drive belt 164. The reel drive tensioning pulley 166 is urged against the reel drive belt 164 by the reel drive tension spring 166 and the reel drive tension pulley 166 So that the reel drive belt 164 is supported in tension. A reeling drive chain 92 is built in the chain cover body 169 on the left side of the preloading section 3 and a reel drive belt 164 is provided on the belt cover body 170 on the right side of the preloading section 3, .

A blade 15 is connected to the right end of the rake shaft 93 through a blade driving crank mechanism 100. The operation of the work clutch 60 of the work clutch lever 46 causes the corner portions of the preloading portion 3 15) are driven so as to continuously cut the blade side of the uncut yarn of the package. Further, a blade driving crank mechanism 100 is built in the blade drive cover member 171 on the right side of the preload unit 3.

Next, the hydraulic circuit structure of the combine will be described with reference to Fig. 12, the traveling hydraulic pump 30 and the traveling hydraulic motor 31 of the hydraulic transmission CVT 64 are connected by the closed loop hydraulic circuit 211 and the closed loop hydraulic circuit 211 to supply the working oil to the working fluid. An elevating hydraulic circuit 216 having an elevating valve 213 is provided to switch the elevating valve 213 by the operation of the sheathed elevating lever 47 and to move the elevating hydraulic cylinder 4 up A pump 215 is formed. The charge pump 212 and the operation pump 215 are connected to the traveling hydraulic pump 30 through the transmission input shaft 66 to be driven.

The hydraulic fluid in the working oil tank 55 is sent from the charge pump 212 and the operation pump 215 to the hydraulic CVR 64 or the elevating hydraulic circuit 216 to drive the hydraulic pump And the elevating and lowering hydraulic cylinders 4 are moved upward by the operation pump 215 to move the elevating portion 3 up and down. In addition, the hydraulic oil is returned from the hydraulic continuously variable transmission 64 or the elevating hydraulic circuit 216 to the hydraulic oil tank 55 through the oil cooler 217. The oil cooler 217 is configured to air-cool the cooling cooler fan 218 formed on the intermediate shaft 132 to maintain the operating oil of the working oil tank 55 at a predetermined temperature or lower.

Next, the structure of the traveling base 1 will be described with reference to Figs. 7 to 10, 13, and 14. Fig. The traveling base 1 is constituted by a lower and upper girder frames 1a and 1b and a strut frame 1c in a tower structure of upper and lower ends. The left and right track frames 50 are fixed to the underside of the lower base frame 1a through the battery cores 32 and the fuselage cores 33 and the left and right track frames 50 are fixed to the left and right crawler tracks 2, . The lower surface of the engine 7 is connected to a mounting portion on the upper surface of the upper base frame 1b and the engine 7 is mounted on the upper base frame 1b. And is disposed at a central portion of the traveling base 1 between the receiving portions 6. [

That is to say, the engine 7 is disposed at the center of the width of the running vehicle 1 and the rear portion of the upper gas frame 1b (the rear portion of the running vehicle 1) And the rice rice receiving portion 6 is disposed at the rear portion of the upper gas frame 1b (the rear left side of the traveling base 1) of the left side of the engine 7, The battery 56 is arranged on the upper right side of the upper base frame 1b on which the battery 7 is mounted and the battery 56 is used by starting power of the engine 7 or the like.

On the other hand, the front end side of the lower base body frame 1a is extended in front of the front end side of the upper base body frame 1b, and the bottom portion of the threshing portion 9 is placed on the upper end side of the lower base body frame 1a. The engine 7 is provided on the upper surface of the upper base frame 1b on the rear side of the threshing section 9 and the upper surface height of the threshing section 9 and the height of the upper surface of the engine 7 coincide with each other, (The upper surface of the lower frame 1a) of the tread portion 9 is formed to be lower than the mounting surface (the upper surface of the upper base frame 1b) The supply supply plate 9a is disposed at a lower position on the left side of the threshing portion 9 and the supply opening 9b of the threshing portion 9 is formed at the lower position of the traveling base 1.

It is also possible to mount the lifting hydraulic cylinder 4 on the front end portion of the lower base frame 1a and to secure the lifting hydraulic cylinder 4 between the front end portion of the upper base frame 1b (rear surface of the threshing portion 9) A working oil tank 55 is arranged and working oil such as the elevating hydraulic cylinder 4 is stored in the working oil tank 55. [

On the other hand, the rear end of the lower frame body 1a is connected to the rear end of the left and right track frames 50 by the right and left fuselage cores 33, and the upper ends of the right and left fuselage cores 33 are connected to the lower frame frame 1a The left and right axle cases 63a on both sides of the transmission case 63 are detachably supported on the upper end sides of the right and left fuselage corners 33 and the rear end side The rear end side of the upper gas frame 1b is extended and the lower end side of the upper gas frame 1b is detachably supported on the upper end side of the transmission case 63 via the upper link body 62 , And the mission case 63 is disposed rearwardly inclined on the upper end side of the fuselage body 33 and the rear end side of the upper gas frame 1b.

The rear end portion of the left and right crawler tracks 2 is attached through the left and right drive sprockets 51 to the left and right axle cases 63a at the lower end of the transmission case 63. That is, the drive sprocket 51 is supported on the upper end side of the fuselage corrugated body 33 through the left and right axle cases 63a, and the driving of the tension rollers 52 at the front end of the track frame 50 and the drive The non-earthed side of the crawler track 2 is attached between the sprockets 51 and the crawler track 2 is supported in a restoring posture in which the non-earthed side of the crawler track 2 is inclined forward.

And a transmission frame 116 for fastening the opposite ends of the right and left axle cases 63a to the left rear axle case 63a of the upper base frame 1b. The rear side of the transmission case 63 is provided with a mission protection frame 116 And the upper and lower sides of the hydraulic CVT 64 on the upper portion of the transmission case 63 are covered with the mission protection cover 117, As shown in Fig.

The counter shaft 72 is bridged in a horizontal posture above the upper base frame 1b of all the traveling vehicles 1. [ The side plate supporting frame 145 and the engine side plate body 146 are formed by being formed on the upper left surface of the upper base frame 1b and the side plate supporting frame 145 and the engine side plate body 146 are connected and fixed, The proximal end side of the prestressing tension arm 147 is mounted on the frame 145 and the work clutch 60 is disposed on the distal end side of the prestressing tension arm 147 formed in the forward direction, And the counter shaft 72 is connected to the output shaft 65 of the engine 7. [

The fan case 29 of the suction fan unit 34 is fixed to the support frame member 39 and the suction fan unit 34 is disposed on the outboard side of the left side of the engine side plate member 146, And a suction fan unit 34 is arranged in the room through the engine side plate body 146. And is configured to suck the warm air around the engine 7 to the suction fan unit 34 through the engine side plate body 146. [

The driving tension arm 149 on which the traveling clutch 68 is supported is supported by the intermediate frame 131 and the thruster driving belt 59, the front traveling output belt 67a, the rear traveling output belt And the belt cover body 183 is attached to the left side of the engine 7 on which the fan drive belt 84 is disposed. The upper surface wall portion of the belt cover member 183 is formed to extend in the front-rear direction along the upper surface side of each of the belts 59, 67a, 67b, and 84.

A tread belt 59 which is formed by extending the engine side plate 146 on the front side of the side plate support frame 145 and extending in the longitudinal direction from the left side of the engine 7, The upper side surface and the left side surface of the rear drive output belt 67b and the fan drive belt 84 are closed by the left side wall portion and the upper surface wall portion of the engine side plate body 146 and the belt cover body 183, The outside air of the installation space of the belts 59, 67a, 67b, and 84 covered with the engine side plate body 146 and the belt cover body 183 is supplied to the oil cooler 217 through the cooling cooler fan 218 have.

With the above arrangement, it is possible to reduce the amount of straw debris in a relatively small area at the lower opening of the engine side plate 146 and the belt cover 183 (in the vicinity of the mounting portion of the upper gas frame 1b or the mounting portion of the engine 7) The outside air can be sucked into the space covered by the engine side plate 146 and the belt cover member 183 and the outside air inside the space can be supplied to the oil cooler 217 by the cooling cooler fan 218. [ Therefore, it is possible to supply the oil cooler 217 with a relatively small amount of dust, such as straw crumbs, as the cooling wind.

4 to 6, the rice cradle 38 is disposed at the rear of the left crawler track 2 and the rice cradle 19a of the filling hopper 19 is positioned above the rice cradle 38 The rice padding 37 is mounted on the rice padding 19a and the rice padding 37 is filled with rice. The rice pockets 37 filled with rice are dropped on the pavement and empty rice pockets 37 are sequentially mounted on the rice pouring openings 19a so that the rice paddies 37 are continuously supplied from the grained discharge conveyor 8 through the air duct forming duct body 10 Can be filled in the plurality of rice pockets (37).

As shown in Figs. 4 to 7, 13, 15, and the like, the swing motion 21 is constituted by four ring-shaped body frames 21a arranged on the same circumference, A plurality of V-shaped treads 21b which are formed to be erected in an outward position at intervals in the circumferential direction of the body frame 21a, 21c. Both ends of each of the moving body frames 21a are fixed to the outer periphery of the left and right side plate bodies 21d of the circular plate shape of the swash plate 21 and both ends of the V shape of the swash plate 21b are fixed to the moving body frame 21a I have to.

Further, a front frame body 121 having an end face of an inverted V-shape in cross-section formed by cross-linking in parallel in the left-right direction on the front upper face side of the traveling base 1 and a rear frame body 121 having an L- 122). A front frame body 121 having an inverted V-shaped end face in cross section is welded and fixed to the front end portion of the lower frame body 1a (traveling body 1) The L-shaped rear frame 122 is welded to the upper end of the strut frame 1c (the traveling base 1) integrally connected thereto.

The lower ends of the left and right threshing mounts 128 are welded to the front end of the lower frame body 1a and welded to the upper ends of the left and right threshing mounts 128, And a hydraulic cylinder 4 for ascending and descending is mounted on the left threshing mount 128. The threshing mount base 128 is formed so as to be shorter than the strut frame 1c so that the supporting height of the rear frame member 122 is made higher than the supporting frame height of the entire frame body 121. [

A front bolt frame body 123 having an inverted V-shaped end face in cross section is integrally and detachably joined to the front frame body 121 whose end face of the cross section is inverted V-shaped, A bolt 125 is detachably fastened to the entire frame body 121 so as to be detachable from the frame body 121 and the end face of the end face is formed into an L- And the bolts 126 are fastened to the rear frame body 122 by the rear bolt frame body 124. As shown in Fig.

(The front binding frame body 123) of the threshing portion 9 is fixed to the front frame body 121 having the end face of the end face in the inverted V shape, Shaped rear portion (back side bolster frame 124) of the rear portion of the threshing portion 9 is fixed to the rear frame member 122 of the shape of the rear frame member 122 having the shape A curled-yarn take-up conveyor 36 is disposed in the curled-yarn take-out barrel 25 at the bottom of the threshing portion 9 by detachably assembling the bottom side of the curved take- And the frame body 121 is entirely joined and supported via the entire frame body 123.

Next, the hydraulic circuit structure in which the hydraulic oil tank 55, the mission case 63, and the oil cooler 217 are arranged will be described with reference to Figs. 12 and 16 to 19. The oil cooler 217 and the cooling cooler fan 218 are fixed to each other by fixing the cooler case body 412 to the inside of the cabinet frame 39 via the case bracket body 411, Is formed in the cooler case body (412). The oil cooler 217 is mounted on the support frame 39 as the rice receiving pillar of the rice receiving portion 6 and the oil cooler 217 is mounted on the rear side of the engine 7 via the support frame 39 The cooling cooler fan 218 is arranged so that the oil cooler 217 can be supported with high rigidity by using the support frame 39 without specially installing a support member of the oil cooler 217. [

The oil cooler 217 and the cooling cooler fan 218 which form the intermediate shaft 132 at the transmission diameter between the engine 7 and the hydraulic CVS 64 and which cool the operating oil of the hydraulic CVT 64, Is provided in the vicinity of the intermediate shaft 132. An intermediate shaft is extended in the lateral direction of the running vehicle 1 to mount the cooling cooler fan 218 at the left end (outboard side end) of the intermediate shaft 132 and the mounting position of the intermediate shaft 132 is moved up or down The oil cooler 217 or the cooling cooler fan 218, so that the respective mounting positions can be determined.

On the other hand, the front surface of the mission case 63 is fixed to the left and right middle portions of the traveling base 1 (the upper base frame 1b) via the transmission bracket 413 and the transmission case 63 ). A cooling cooler fan 218 is formed on the outboard side end of the intermediate shaft 132 and an oil cooler 217 is disposed on the out side of the cooling cooler fan 218, And the oil cooler 217 is held close to the oil cooler 64. The threshing portion 9 is mounted on the upper surface of the traveling base 1 in a transversely oriented posture so that the engine 7 and the rice receiving portion 6 are disposed behind the threshing portion 9 and the engine 7 and the steering column 41 are provided at the left and right rear sides of the transmission case 6 and the hydraulic CVS 64 and the valve block body 214 are provided on the upper portion of the transmission case 63, An elevating valve 213 or the like is built in the valve block body 214 on the upper right side of the transmission case 63. The cooling cooler fan 218 is disposed on the opposite side of the control column 41 with the transmission case 63 interposed therebetween and the hydraulic continuously variable transmission 64, the oil cooler 217, and the cooling cooler fan 218 are disposed Thereby constituting a drive portion drive structure of high running performance.

16 to 19, the tank mounting base 421 is integrally fixed to the lower base frame 1a and the tank mounting base 421 is fixed to the operation oil tank (not shown) through the tank bracket body 422 55 and the upper portion of the hydraulic oil tank 55 is fixed to the upper base frame 1b through the upright bracket body 423. The lower gas frame 1a and the upper gas frame 1b are fastened and fixed to the working gas tank 1 so that the lower gas frame 1a and the upper gas frame 1b, An operating oil tank 55 for supplying operating oil to the hydraulic CVS 64 is provided at the upper portion of the transmission case 63 and the operating oil tank 55 is disposed at a lower position than the engine 7 The operating oil tank 55 is installed in a place where the cooling efficiency is good.

That is, the threshing section 9 is mounted on the upper surface of the traveling base 1 in a transversely oriented posture, the engine 7 and the rice receiving section 6 are arranged behind the threshing section 9, The engine 7 is mounted on the upper surface of the frame 1b and the front end side of the lower gas frame 1a is extended in front of the front end side of the upper gas frame 1b, The threshing portion 9 is placed on the upper surface of the frame body 121 and the hydraulic oil tank 55 is disposed below the rear side of the threshing portion 9 and the front side of the engine 7, The combine gas is formed compactly by bringing the engine 7 close to the rear of the engine 9 and the large capacity working oil tank 55 is supported below the threshing portion 9 and the engine 7. [

16 to 19, a main oil cap 424 is formed on the upper surface of the working oil tank 55, and a drain cap 425 is formed on the lower surface of the front surface of the working oil tank 55. The maintenance work space of the hydraulic oil tank 55 is ensured between the threshing section 9 and the engine 7 and the opening and closing of the main oil cap 424 or the drain cap 425 is performed between the threshing section 9 and the engine 7. [ Operation or the like of the operating oil tank 55 or the operation of replenishing the working oil to the working oil tank 55 or the operation of replacing the working oil in the working oil tank 55 can be simplified.

Oil filters 431 and 432 and the like are built in the working oil tank 55 as shown in Figs. 12 and 16 to 19. A supply hydraulic pipe (not shown) for hydraulically connecting the hydraulic continuously variable transmission 64 or the valve block body 214 or the oil cooler 217 on the upper portion of the transmission case 63 and the hydraulic oil tank 55 on the entire traveling vehicle 1 433 and 434 and return hydraulic pipes 435 and 436 and 437 are extended between the lower gas frame 1a and the upper gas frame 1b. The lower gas frame 1a and the upper gas frame 1b surround the upper and lower sides of the hydraulic pipes 433 to 437 and surround the front sides of the hydraulic pipes 433 to 436 with the hydraulic oil tank 55, (433 to 437) are protected.

The charge pump 212 is connected to the oil filter 431 inside the working oil tank 55 through the supply hydraulic pressure pipe 433 and the oil pump 432 is connected to the oil filter 432 inside the working oil tank 55 as shown in Fig. And the working pump 215 is connected through the supply hydraulic piping 434. The operating oil tank 55 is connected to the hydraulic continuously variable transmission 64 by the return oil hydraulic line 435 and the oil cooler 217 is connected to the valve block body 214 by the return oil hydraulic line 436, And the hydraulic oil tank 55 is connected to the hydraulic oil pipe 217 by a return hydraulic pipe 437. [

The operating oil in the working oil tank 55 is circulated and cooled by the oil cooler 217 and the maintenance space of the operating oil tank 55 is provided between the threshing portion 9 and the engine 7 So that the connecting operation of the hydraulic pipes 433 to 437 can be carried out and the maintenance such as the replacement of the oil filters 431 and 432 can be easily carried out. The elevating hydraulic cylinder 4 is connected to the valve block body 214 via the elevating hydraulic line 438 and the elevating hydraulic cylinder 4 is operated by the switching operation of the elevating valve 213 have.

As shown in Fig. 1, Fig. 7 to Fig. 12 and Fig. 16 to Fig. 19, (1) for driving the crawler track (2) and the engine (7), and a steering column (41) for arranging a plurality of operation levers (43 to 48) The oil cooler 217 and the cooling cooler fan 218 for cooling the hydraulic fluid of the hydraulic CVT 64 and the cooler fan 218 are provided in the combine, The intermediate shaft 132 is formed at a transmission diameter between the intermediate shaft 132 and the hydraulic continuously variable transmission 64 so that the intermediate shaft 132 is extended in the left and right direction of the traveling base 1, (Not shown). Accordingly, since the mounting position of the intermediate shaft 132 can be easily selected in the vertical direction or the lateral direction, the mounting position of the cooling cooler fan 218 can be easily determined in association with the oil cooler 217, The driving structure of the crawler track 2 suitable for the engine 7 of small output mounted on the combine of the structure can be easily configured. For example, when the threshing portion 9 is mounted on the upper surface of the traveling base 1 in a lateral arrangement posture, the engine 7 and the rice receiving portion 6 are arranged behind the threshing portion 9 The rice rice receiving section 6 and the steering column 41 are juxtaposed on the left and right rear portions of the rear portion of the traveling body 1 on the rear side of the engine 7 to constitute a combine of a small and lightweight structure.

A structure including pulleys 133 and 134 and belts 67a and 67b for transmitting the power of the engine 7 to the hydraulic CVL 64 as shown in Figs. 7 to 12 and Figs. 16 to 19, A cooling cooler fan 218 is formed on the outboard side end of the intermediate shaft 132 on which the pulleys 133 and 134 are pivoted and the oil cooler 217 is disposed on the out side of the cooling cooler fan 218 have. Therefore, the oil cooler 217 can be held in close proximity to the hydraulic continuously variable transmission 64 in the upper portion of the transmission case 63 to compactly support air with less dust behind the engine 7 as cooling air in the oil cooler 217).

The transmission case 1 is disposed in the rear of the engine 7 and the transmission case 1 is provided with the transmission case 3 as shown in Figs. 7 to 12 and Figs. 16 to 19, The intermediate shaft 132 is formed at the transmission diameter between the transmission 64 and the transmission 64 and the intermediate shaft 132 is extended in the left and right direction of the traveling base 1 and the cooling cooler fan 218 is provided on the intermediate shaft 132. [ And a cooling cooler fan 218 is disposed on the opposite side of the control column 41 with the transmission case 63 interposed therebetween. Therefore, it is possible to easily configure the drive structure of the running portion (crawler track 2) having high running performance by including the hydraulic continuously variable transmission 64, the oil cooler 217, and the cooling cooler fan 218, It is possible to easily construct a combine having a small and lightweight structure. The threshing portion 9 can be mounted on the upper surface of the traveling base 1 in the transversely oriented posture so that the engine 7 and the rice receiving portion 6 can be disposed behind the threshing portion 9, The rice receiving portion 6 and the steering column 41 can be disposed side by side on the left and right rear sides of the rear side of the engine 7. [

The threshing portion 9 is mounted on the upper surface of the traveling base 1 in a transverse arrangement posture in the lateral direction as shown in Figs. 7 to 12 and Figs. 16 to 19, And the rice receiving portion 6 and the steering column 41 are arranged side by side on the left and right rear sides of the rear portion of the engine 7 in the rear portion of the traveling base 1 The oil cooler 217 is attached to the column frame 39 as the rice receiving pillar of the rice receiving portion 6 and the oil cooler 217 is mounted on the rear side of the engine 7 through the column frame 39. [ And a cooling cooler fan 218 are disposed. Therefore, the oil cooler 217 can be supported with high rigidity by using the support frame member 39 without specially installing the support member of the oil cooler 217, and the number of components mounted on the oil cooler 217 can be reduced , And can be configured at low cost.

Next, Figs. 20 to 21 show modifications of the hydraulic circuit structure shown in Figs. 12 and 16 to 19. Fig. In the hydraulic circuit structure shown in Figs. 12 and 16 to 19, the operating oil in the working oil tank 55 circulates and flows through the oil cooler 217 through the return hydraulic pipe 436 of the valve block body 214, Respectively. On the other hand, the hydraulic circuit structure shown in Fig. 20 is configured such that the operating oil in the working oil tank 55 is circulated and cooled by the oil cooler 217 through the return hydraulic pipe 435 of the hydraulic CVl 64 have. The hydraulic circuit structure shown in Fig. 21 is arranged so as to be movable between the return oil pressure pipe 435 of the hydraulic CVl 64 and the return oil pressure pipe 436 of the valve block body 214, Is circulated to the oil cooler 217 and cooled.

As shown in Figs. 1 to 12 and Figs. 16 to 19, there are provided a tread portion 3 having a blade 15, a tread portion 9 having a tumbler 21, a crawler track 2 as a running portion, A transmission case 1 for forming the engine 7 and a transmission case 2 and a transmission case 3 for driving the crawler track 2 and a hydraulic CVT 64, A hydraulic infinitely variable transmission 64 disposed above the transmission case 63 is provided between the lower base frame 1a and the upper base frame 1b which form the traveling base 1 in a vertically multi-stage structure, And an operating oil tank 55 for supplying operating oil to the engine. Therefore, it is possible to easily secure a place for installing the working oil tank 55 having a good cooling efficiency at a position lower than the engine 7, without restricting the size of the working oil tank 55. [ (Crawler track 2) driving structure suitable for a small-output engine 7 mounted on a combine of a small-sized and lightweight structure can be easily configured. For example, when the threshing portion 9 is mounted on the upper surface of the traveling base 1 in a lateral arrangement posture, the engine 7 and the rice receiving portion 6 are arranged behind the threshing portion 9 The rice rice receiving section 6 and the steering column 41 are juxtaposed on the right and left rear portions of the rear portion of the rear portion of the engine 7 in the rear portion of the running vehicle 1 to constitute a combine of a small and lightweight structure.

The threshing portion 9 is mounted on the upper surface of the traveling base 1 in a transverse arrangement posture in the lateral direction as shown in Figs. 4 to 12 and Figs. 16 to 19, And the rice receiving portion 6 are mounted on the upper base frame 1b so that the engine 7 is mounted on the upper surface of the upper base frame 1b and the lower base frame 1a is disposed forward of the upper end of the upper base frame 1b. And the hydraulic oil tank 55 is disposed below the space between the rear side of the threshing portion 9 and the front side of the engine 7 so that the front end side is extended to place the threshing portion 9 on the upper surface of the front end side of the lower base body frame 1a I have to. Therefore, even if the gas is constructed compactly by bringing the engine 7 close to the rear portion of the threshing portion 9 in the transverse arrangement posture, a large capacity of the working oil tank 55 Can be simply supported.

As shown in Figs. 4 to 12 and Figs. 16 to 19, the transmission case 1 has a structure in which a transmission case 63, a rice receiving portion 6 and a steering column 41 are juxtaposed to the rear of the traveling base 1, Hydraulic pipes 433 to 437 for hydraulically connecting the hydraulic CVS 64 on the upper portion of the traveling base 1 and the hydraulic oil tank 55 on the front portion of the traveling base 1 to the lower base frame 1a and the upper base frame 1b, Respectively. The lower gas frame 1a and the upper gas frame 1b surround the upper and lower sides of the hydraulic pipes 433 to 437 and surround the front sides of the hydraulic pipes 433 to 437 with the hydraulic oil tank 55, 433 to 437 can be easily protected. The space for installing the hydraulic oil pipes 55 and the hydraulic pipes 433 to 437 can be ensured at a position lower than the engine 7 (on the lower side of the upper base frame 1b) And the structure of the hydraulic pipes 433 to 437 for connecting the hydraulic pressure pipes 433 to 437 to the hydraulic CVL 64 at the rear of the engine 7 can be simplified and the installation workability and the like of the hydraulic pipes 433 to 437 can be improved.

The threshing portion 9 is mounted on the upper surface of the traveling base 1 in the transverse arrangement posture in the lateral direction as shown in Figs. 4 to 12 and Figs. 16 to 19, 55 and 55 are fixed to the lower gas frame 1a and the upper gas frame 1b while the oil filters 431 and 432 are built in the working oil tank 55 A main oil cap 424 is formed on the upper surface of the working oil tank 55 and a drain cap 425 is formed on the lower front of the working oil tank 55. Therefore, a work space relating to the working oil tank 55 can be easily secured between the rear portion of the threshing portion 9 and the entire portion of the engine 7. [ For example, opening and closing operations of the main cap 424 or the drain cap 425 can be easily performed. It is possible to simplify the attaching / detaching operation of the operating oil tank 55 or the connecting operation of the hydraulic pipes 433 to 437 or the operation of replenishing the working oil to the working oil tank 55 and maintenance such as replacement of the oil filters 431 and 432 It can be easily executed.

As shown in Figs. 4 to 12 and Figs. 16 to 19, the mission case 63 is disposed at the rear portion of the running vehicle 1 and the threshing portion 9 is disposed in the lateral direction The engine 7 and the rice receiving portion 6 are disposed behind the threshing portion 9 and the rice receiving portion 6 and the steering column An oil cooler 217 which forms an intermediate shaft 132 at a transmitting diameter between the engine 7 and the hydraulic CVT 64 and which cools the operating oil of the hydraulic CVT 64, And a cooling cooler fan (218) are provided in the vicinity of the intermediate shaft (132). Therefore, it is possible to easily configure the drive structure of the running portion (crawler track 2) having high running performance by including the hydraulic continuously variable transmission 64, the oil cooler 217, and the cooling cooler fan 218, It is possible to easily construct a combine having a small and lightweight structure.

Next, Figs. 22 to 28 show modified examples of the driving drive structure shown in Figs. 7 to 14. Fig. 22 to 28, an inverted case 441 is formed at a transmission diameter between the engine 7 and the hydraulic CVT 64, and the reverse casing 441 is formed on the traveling base 1 via the intermediate frame 131 The reversing case 441 is formed by being formed. A reversing input shaft 132a and a reversing output shaft 132b as intermediate shafts extending in the transverse direction of the traveling base 1 are formed in the reversing case 441. [ The reverse input shaft 132a and the reverse output shaft 132b are interlocked with each other through the reverse gear group 442. A cooling cooler fan 218 is attached to the left end of a reverse output shaft 132b protruding outward to the outside of the vehicle and the operating oil circulated to the oil cooler 217 is cooled by the cooling cooler fan 218. [

The front travel output belt 67a and the rear travel output belt 67b are formed so as to have a transmission diameter between the engine 7 and the transmission case 63. The front travel output belt 67a, A left intermediate pulley 133 for shifting (shifting) the rear running output belt 67b extending in the front-rear direction toward the center of the vehicle and for supporting the rear end of the front running output belt 67a, The right intermediate pulley 134 for supporting the front end of the traveling output belt 67b is disposed in the reversing case 441 formed on the traveling base 1 to be formed. The mounting positions of the intermediate pulleys 133 and 134 can be selected vertically or laterally by adjusting the mounting position of the reversing case 441. [

22 to 28, an inverted case 441 is formed at a transmission diameter between the engine 7 and the hydraulic CVT 64, and an inverted case 441 is formed in the traveling carrier 1 The reversing input shaft 132a and the reversing output shaft 132b as intermediate shafts extending in the transverse direction of the running vehicle 1 are formed in the reversing case 441 and the reversing output shaft 132b is cooled The engine 7 or the mission case 63 can be shared by merely installing the reversing case 441 in accordance with the specification of the hydraulic CVL 64, The hydraulic non-stage transmission 64 can be easily mounted. It is possible to easily configure the driving portion (crawler track 2) driving structure suitable for the desired driving performance.

22 to 28, the transmission diameter between the engine 7 and the transmission case 63 is formed by the front running output belt 67a and the rear running output belt 67b, Rear left output pulley 67a which extends in the forward and backward directions toward the center of the vehicle and which supports the rear end of the front running output belt 67a with respect to the front left output pulley 67a, And the right intermediate pulley 134 for supporting the front end of the rear output belt 67b are disposed on the reversing case 441 formed on the traveling base 1 so that the intermediate pulleys 133 and 134 Can be easily selected in the vertical and horizontal directions. For example, the engine 7 can be disposed at a high center position of the traveling base 1, and the transmission case 63 can be disposed at a position near the lower right of the traveling base 1, And the mounting width of the mounting portion of the mission case 63 can be made compact. In other words, the drive structure of each combine part can be simplified, the size of the combine as a whole can be easily achieved, and a compact combine with a lightweight structure can be constructed at low cost, while ensuring the cut width of the groove and compacting the entire gas.

Next, Figs. 29 to 35 show modifications of the structure and support of the working oil tank shown in Figs. 16 to 19. As shown in Fig. In Figs. 29 to 35, the same reference numerals are given to the parts having the same functions as those of the above-described embodiment. 29 to 35, an operating oil tank 555 is disposed between the front end of the upper gas frame 1b (the rear surface of the threshing portion 9) and the lower gas frame 1a. The tank mounting base 421 is integrally fixed to the lower base frame 1a and the lower portion of the operation oil tank 555 is fixed to the tank mounting base 421 with the lower tank bracket body 556 interposed therebetween.

An upper tank mounting table 557 for connecting the middle parts of a pair of left and right supporting frames (vertical frame frames) 1c and 1c connecting the front portion of the lower frame 1a to the front end of the upper frame 1b Respectively. The end surface of the upper tank mounting base 557 is substantially C-shaped in cross section. Both ends of the upper tank mounting base 557 are connected to each other at a position between the lower base frame 1a and the upper base frame 1b on the side of the upper base frame 1b by a pair of left and right supporting frames 1c, And are connected to opposite sides. And the upper portion of the front surface of the working oil tank 555 is fixed to the upper tank mounting base 557 through the upper tank bracket body 558. [

The working oil tank 555 is fixed to the lower frame body 1a and the stanchion frame 1c and is fixed to the lower frame body 1a and the upper frame body 1b which form the traveling body 1 in an upper and lower multi- And is mounted between the supporting frames 1c. A main oil cap 424 is formed on the upper surface of the working oil tank 555 and a drain cap 425 is formed on the lower center of the working oil tank 555. The working oil tank 555 of this embodiment is disposed at the same position as the working oil tank 55 described with reference to Figs. 16 to 19 and the like. Therefore, in this embodiment, the same actions and effects as those of the arrangement and arrangement of the working oil tanks 555 in the above-described embodiment are obtained.

32 to 35, the hydraulic oil tank 555 is provided with a first hydraulic oil supply port 559 which is hydraulically connected to the hydraulic CVT 64, A second hydraulic oil supply port 560 which is connected to the hydraulic oil tank 4 by hydraulic connection is disposed on the front and rear sides of the hydraulic oil tank 555. The first hydraulic oil supply port 559 is hydraulically connected to the charge pump 212 of the hydraulic CVT 64 via a supply hydraulic pressure pipe 433. [ The second hydraulic oil supply port 560 is hydraulically connected to the lifting hydraulic cylinder 4 via the supply hydraulic pressure pipe 434, the operation pump 215, the lift valve 213 and the lift hydraulic pipe 438. The hydraulic circuit configuration in this embodiment is the same as the configuration shown in Fig. 20, but needless to say, it can be changed to the configuration shown in Fig. 12 or Fig.

The first hydraulic oil supply port 559 which is hydraulically connected to the hydraulic CVL 64 disposed on the rear side of the hydraulic oil tank 555 is disposed on the rear side of the hydraulic oil tank 555. The second hydraulic oil supply port 560, which is hydraulically connected to the up-and-down hydraulic cylinder 4 disposed on the front side of the hydraulic oil tank 555, is disposed on the front surface of the hydraulic oil tank 555. In other words, among the side surfaces of the working oil tank 555, the first hydraulic oil supply port 559 is formed on the rear surface opposed to the hydraulic CVL 64, and the second hydraulic oil supply port 560 is a hydraulic- And is formed on the front surface opposed to the elevating hydraulic cylinder 4. [ The arrangement of the hydraulic oil supply ports 559 and 560 in this way facilitates identification of which of the hydraulic fluid supply pipes 433 and 434 is connected to the hydraulic oil supply ports 559 and 560, , 560 of the supply hydraulic pipes 433, 434 can be prevented from being erroneously connected.

29 to 35, a pair of oil filter units 561 and 562 are mounted on the front and rear sides of the working oil tank 555 in the working oil tank 555, respectively. The oil filter units 561 and 562 are provided with a flange member 563 having an operating oil supply port 559 or 560 and being freely detachably mounted on the side surface of the working oil tank 555, And an oil filter 431 or 432 is provided. In this embodiment, the oil filter units 561 and 562 have the same configuration as each other, and the oil filter 431 or 432 is attached to the flange member 563 on which the hydraulic oil supply port 559 or 560 is disposed, 564, 565, and 566, and a spring member 567.

The flange member 563 has a substantially disc shape having a through hole at the center, and an operating oil supply port 559 or 560 is fixed to the through hole. The hydraulic oil supply openings 559 and 560 are formed so as to protrude from one surface of the flange member 563. The filter fixing members 564 and 565 are formed in such a manner that one end of the filter fixing members 564 and 565 is substantially C-shaped in cross section and is protruded and disposed on a surface opposite to the arrangement surface of the hydraulic oil supply port 559 or 560 of the flange member 563 have. The filter fixing members 564 and 565 are vertically opposed to each other with a center portion of the flange member 563 interposed therebetween so that the concave portions face each other. In the oil filter units 561 and 562, substantially cylindrical oil filters 431 and 432 are disposed between the two filter fixing members 564 and 565.

The filter fixing member 566 is formed such that the end surface of its cross section is convex and the inner surface concave portion is fixed to the tip end of the filter fixing members 564 and 565 by two filter fixing bolts 568 toward the flange member 563 side do. A spring member 567 composed of a compression coil spring is disposed between the filter fixing member 566 and the oil filters 431 and 432. [ The oil filters 431 and 432 are pressed against the flange member 563 by the restoring force of the spring member 567.

The oil filter units 561 and 562 are detachably mounted on the rear or front surface of the hydraulic oil tank 555 by three oil filter unit fixing bolts 569, respectively. When the oil filters 431 and 432 are exchanged, an operation for separating the oil filter units 561 and 562 from the working oil tank 555 is performed. 29, both oil filter units 561, 562 are detachably mounted on the hydraulic oil tank 555 at a position higher than the crawler track 2 constituting the traveling portion. The operator can access the oil filter units 561 and 562 via the upper side of the crawler track 2 from the side of the traveling base 1 and perform the attaching and detaching work of the oil filter units 561 and 562 It can be easily carried out from the side of the traveling base 1, and the maintenance property is improved.

As shown in FIGS. 32 to 35, the oil filter unit 561 is mounted on the lower right side portion of the rear side of the working oil tank 555. Further, the oil filter unit 562 is mounted on the lower left portion of the front side of the working oil tank 555. In the working oil tank 555, the oil filter units 561 and 562 are arranged such that the stepped portions 566a and 566a (see FIG. 33) of the both-side convex filter fixing members 566 and 566 are fitted to each other And is partially provided in the vicinity of the bottom of the operating oil tank 555 so as to partially overlap the front and rear direction and the left and right direction. The flange members 563 and 563 of the oil filter units 561 and 562 are partially overlapped in the front-rear direction. The oil filter units 561 and 562 are arranged compactly in the working oil tank 555 and the two oil filters 431 and 432 are arranged at the same height position in the working oil tank 555, (555) can be configured compactly.

29 to 35, operating oil return ports 570 and 571 are juxtaposed on the left and right sides at the same height position at a portion on the upper side of the rear side of the operating oil tank 555. [ One end of the return oil pressure pipe 437 is connected to the working oil return port 570 and the operating oil return port 570 is connected to the hydraulic endless transmission 500 through the return oil pressure pipe 437, the oil cooler 217, and the return oil pressure pipe 435. [ (64). One end of the return hydraulic pipe 436 is connected to the working oil return port 571 and the working oil return port 571 is hydraulically connected to the valve block body 214 through the return hydraulic pipe 436.

As shown in FIGS. 32 to 35, working oil jump-off prevention plates 572 and 573 and a working oil diffusion plate 574 are disposed in the working oil tank 555. The working oil jump-off prevention plate 572 is formed so as to protrude from the inner wall of the rear side of the working oil tank 555 toward the front side. The working oil jump-off prevention plate 573 and the working oil diffusion plate 574 are protruded from the inner wall of the front side of the working oil tank 555 toward the rear side. The actuating oil jump-off prevention plates 572 and 573 are disposed at the same height position and are disposed at a height higher than the operating oil return ports 570 and 571. The working oil diffuser plate 574 is disposed at a position lower than the operating oil return ports 570 and 571. The upper surface of the rear side of the operating oil tank 555 is provided with a cap 575 for confirming the oil level in the operating oil tank 555 at a height higher than the operating oil jump- Respectively.

The working oil jump-off prevention plate 572 and the working oil diffusion plate 574 are formed by a member having an L-shaped end face in cross section. The working oil jump-off prevention plate 573 and the working oil diffusion plate 574 are formed by a single U- Respectively. The working oil jump-off preventing plates 572 and 573 prevent the working oil returned from the working oil return ports 570 and 571 into the working oil tank 555 from rising from the working oil tank 555 to the upper surface side of the working oil tank 555 . The working oil diffuser plate 574 has a function of diffusing the working oil returned from the working oil return ports 570 and 571 into the working oil tank 555 in the left and right directions.

29 to 31, the supply hydraulic pipes 433 and 434 and the return hydraulic pipes 436 and 437 are provided between the lower frame body 1a and the upper frame body 1b and the holding frame 1c Respectively. The lower frame body 1a, the upper frame body 1b and the strut frame 1c surround the hydraulic pipes 433, 434, 436 and 437 so as to protect these hydraulic pipes. The supply hydraulic pressure pipe 434 is connected to the second hydraulic oil supply port 560 on the front side of the hydraulic oil tank 555 through the upper portion of the hydraulic oil tank 555 from the rear side, It is protected by the support frame 1c, the engine 7, the threshing portion 9, etc. (see Figs. 1 to 6, etc.).

29 to 33, the working oil tank 555 includes a lower frame body 1a and a holding frame 1c connecting the lower frame body 1a and the upper frame body 1b, It is possible to firmly support the working oil tank 555 on the lower frame body 1a and the stanchion frame 1c constituting the traveling base 1, It is possible to dispose the working oil tank 555 in a space surrounded by the frame 1a, the upper gas frame 1b and the stanchion frame 1c and to prevent the damage due to the dropping of the working oil tank 555 or the collision of foreign matter, Can be improved.

This embodiment also includes a first hydraulic oil supply port 559 that is hydraulically connected to the hydraulic CVL 64 and a second hydraulic oil supply port 559 that is hydraulically connected to the elevating hydraulic cylinder 4 that lifts and moves the pre- The hydraulic oil supply pipe 540 is connected to the supply hydraulic pressure pipe 433 connected to the hydraulic CVL 64 and the hydraulic cylinder 4 for elevation, The supply hydraulic pipes 434 can be separated from the front and rear sides of the hydraulic oil tanks 555 and connected to the hydraulic oil tanks 555 and can be connected to any of the two hydraulic hydraulic pipes 433 and 434 from before and after the hydraulic oil tanks 555 Maintenance of the supply hydraulic pipes 433 and 434 and maintenance work such as separation work are improved.

This embodiment also includes a flange member 563 in which an operating fluid supply port 559 or 560 is disposed and is freely detachably mounted on a side surface of the working fluid tank 555, Since the pair of oil filter units 561 and 562 having the oil filter unit 431 or 432 are mounted on the front and rear sides of the operating oil tank 555, The maintenance of the oil filter units 561 and 562, such as the mounting and separation operations, is improved. Since the pair of oil filter units 561 and 562 are partially overlapped in the back-and-forth direction and the left-right direction in the working oil tank 555, the oil filter units 561 and 562 are disposed at the same height The arrangement area of both oil filter units 561 and 562 can be made smaller in plan view and further the working oil tank 555 can be made compact. Since both the oil filter units 561 and 562 are mounted on the hydraulic oil tank 555 at a position higher than the crawler track 2 constituting the traveling portion, the oil filter units 561 and 562 are moved It can be easily carried out from the side of the base 1, and the maintenance property is improved.

1 travel
1a lower gas frame
1b upper gas frame
1c Holding frame (vertical frame)
2 Crawler track (driving part)
3 Example Attachment
6 rice paddies
7 engine
9 Threshing section
15 blade
21 ramps
41 steering column
55 Working oil tank
63 mission cases
64 Hydraulic stepless transmission
132 intermediate axis
217 Oil cooler
218 Cooling Cooler Fan
424 oil cap
425 drain cap
431 Oil filter
432 Oil filter
433 Supply hydraulic piping
434 Supply hydraulic piping
435 Return hydraulic piping
436 Return hydraulic piping
437 Return hydraulic piping
555 Working oil tank
559 First working fluid supply port
560 Second hydraulic oil supply port
561 Oil filter unit
562 Oil filter unit
563 Flange member

Claims (8)

And a hydraulic control unit that drives the traveling unit and the hydraulic CVT so as to form a curved path from the propulsion unit to the threshing unit, In the combine to supply,
Wherein an operating oil tank for supplying operating oil to the hydraulic CVT is provided between the lower gas frame and the upper gas frame for forming the traveling gas in a vertically multi-stage structure. The method according to claim 1,
Wherein the engine is mounted on the upper surface of the upper gas frame, and the engine is mounted on the upper surface of the upper gas frame, and the engine is mounted on the upper surface of the upper gas frame, The front end side of the lower gas frame is extended in front of the front end side of the gas frame and the threshing portion is placed on the upper side of the front end side of the lower gas frame and the working oil tank is disposed below the rear side of the threshing portion and the front side of the engine . The method according to claim 1,
And a hydraulic pump for hydraulic connection of an operating oil tank of all the traveling gas to a lower portion of the lower gas frame, And the upper frame is extended between the upper frame and the upper frame. The method according to claim 1,
Wherein the hydraulic cylinder is mounted on the upper surface of the traveling body in a transversely oriented posture in the transverse direction and the hydraulic oil tank is disposed behind the threshing portion and the hydraulic oil tank is fastened and fixed to the lower body frame and the upper body frame, Wherein an oil filter or the like is built in a hydraulic oil tank, a main oil cap is formed on an upper surface of the hydraulic oil tank, and a drain cap is formed below the front surface of the hydraulic oil tank. The method according to claim 1,
Wherein the transmission case is disposed in the rear portion of the traveling body and the threshing portion is mounted on the upper surface of the traveling body in a transverse posture in the transverse direction and the engine and the rice receiving portion are arranged in the rear of the threshing portion, And an oil cooler and a cooling fan for cooling the hydraulic fluid of the hydraulic CVT are disposed in the vicinity of the intermediate shaft Is installed in the main body (1). The method according to claim 1,
Wherein the working oil tank is supported by the vertical gas frame connecting the lower gas frame and the lower gas frame to the upper gas frame. The method according to claim 1,
And a second hydraulic oil supply port which is hydraulically connected to the lift cylinder for lifting and lowering the cut-off portion are arranged on the front and rear sides of the hydraulic oil tank. combine. 8. The method of claim 7,
A pair of oil filter units each having an oil filter disposed in the working oil tank, the oil filter unit comprising: a flange member to which the first or second working oil supply port is disposed and is freely detachably mounted on a side surface of the working oil tank; Wherein the first and second oil chambers are mounted on the front and rear sides of the tank and are partially overlapped with each other in the front-rear direction and the left-right direction in the hydraulic oil tank.

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