KR20210157440A - Combine - Google Patents

Abstract

The combine of this invention is equipped with the traveling body 1 which mounts the threshing part 9 provided with the barrel 21, the engine 7, and the transmission case 63, In all of the threshing part 9 To the threshing part 9 by the beater 18 which provided the harvesting part 3 and provided the harvesting grain stem conveyed through the feeder house 11 from the harvesting part 3 in the terminal side of the feeder house 11 put in A hydraulic oil tank 57 for storing hydraulic oil is provided on the traveling body 1 at a spatial position surrounded by the feeder house 11 and the beater 18, and the engine 7 and the hydraulic oil tank 57 are connected to the traveling body ( 1) They are arranged side by side from the front to the left.

Description

combine {COMBINE}

This invention relates to the combine equipped with the harvesting part which mowings the non-cutting grain stem of a pavement, and the threshing part which removes the grain of a harvesting grain stem.

Conventionally, in a normal type combine equipped with a feeder house for conveying the grain stem mowed by the mowing unit to the barrel, a beater for grain stem input is formed in the cutting unit between the end of the feeder house and the barrel entrance, and cutting for the barrel There exists a technique which improves the harvesting property of a grain stem (refer patent document 1). Moreover, in the self-removing type combine provided with the feed chain which conveys the grain stem mowed by the harvesting part to the barrel, it is proposed to store the hydraulic oil supplied to the continuously variable transmission for traveling in the hydraulic oil tank (refer patent documents 2 and 3). . Moreover, in a normal type combine, there exists a technique of forming a hydraulic pump and a hydraulic motor in a left-right traveling part, and driving a left-right traveling part (refer patent document 4).

Japanese Laid-Open Patent Publication No. 2000-037126 Japanese Laid-Open Patent Publication No. 2004-058824 Japanese Laid-Open Patent Publication No. 2015-084709 Japanese Patent Laid-Open No. 2010-239980

In the prior art disclosed in Patent Documents 1, 2 and 4, there is a distance between the engine and the hydraulic oil tank, the cooling air for the engine is not supplied to the hydraulic oil tank, and the cooling effect of the engine cooling wind is not exerted on the hydraulic oil tank. . Moreover, although the prior art shown in patent document 3 is a structure in which the cooling wind from an engine flows toward a hydraulic oil tank, sufficient cooling effect is not acquired and it becomes a structure which requires cooling by an oil cooler.

Then, this invention intends to provide the combine which improved by examining such a current situation.

In order to achieve the said object, the combine of this invention is equipped with the threshing part provided with a barrel, and the traveling body which mounts an engine and a transmission case, and forms a mowing part in the front part of the said threshing part, The said example In the combine which injects into the said threshing part by the beater formed in the terminal side of the said feeder house the harvesting grain culm conveyed through a feeder house from an installation WHEREIN: The hydraulic oil tank which stores hydraulic oil is the said feeder house as the said traveling body phase, and It is installed in the space position surrounded by the said beater, and the said engine and the said hydraulic oil tank are arrange|positioned side by side from side to side in front of the said traveling body.

The said combine WHEREIN: The said hydraulic oil tank may have a machine outer side surface the oil supply port which protruded toward the machine outer side, and it is good also as what has built-in the oil filter which can be inserted and taken out from the machine outer side.

In the combine, the hydraulic pipe connected to the hydraulic oil tank is formed to extend left and right in front of the hydraulic oil tank and the engine, and a part of the hydraulic pipe is disposed in front of the engine The hydraulic pump and the oil filter It may be said that it communicates with

In the combine, the mechanical casing body includes front and rear support frames erected from the traveling body before and after the beater, and upper and lower beam frames for constructing upper ends and intermediate portions of the front and rear support frames, respectively; A first counter shaft receiving driving force from the engine is axially supported by the rear strut frame, and the beater shaft of the beater is axially supported by a beater bearing body connected to the upper and lower beam frames, and at a position in front of the front strut frame. A shaft-supported harvesting input shaft passes through the feeder house, a first power transmission mechanism that transmits the rotational power of the first counter shaft to the beater shaft, and a second power that transmits the rotational power of the beater shaft to the harvesting input shaft A transmission mechanism may be provided, and the oil supply port and the oil filter of the hydraulic oil tank may be disposed in a region surrounded by the first and second power transmission mechanisms and the front support frame.

The said combine WHEREIN: The said threshing part shaft-supports the winnowing fan on the said rear side post frame rear side, and the 2nd counter shaft which is relatively rotatable with respect to the winnowing shaft of the said winnowing fan penetrates the inside of the said winnowing shaft, The said 2nd counter A shaft may receive power from the engine and transmit power to the first counter shaft, and the rotational power of the first counter shaft may be branched and transmitted to each of the wind turbine shaft and the beater shaft.

According to the present invention, the hydraulic oil tank is arranged in the space surrounded by the machine casing body of the feeder house and the threshing part, and it is possible to suppress the accumulation of dust from the mowing part in the hydraulic oil tank, Contamination of hydraulic oil can also be prevented. Moreover, since the cooling wind from an engine flows in the installation space of a hydraulic oil tank, even if it does not provide an oil cooler on a hydraulic circuit, a raise of hydraulic oil temperature can be suppressed, and each hydraulic member can be driven appropriately.

According to this invention, since the oil supply port and the oil filter are provided in the machine outer side side of a hydraulic oil tank, by removing the threshing cover provided in the machine outer side of a threshing part, an oil supply port and an oil filter can be accessed easily. Therefore, while the oil supply operation|work of a hydraulic oil tank and the exchange operation|work of an oil filter become easy, the improvement of the maintainability in a hydraulic circuit can be aimed at.

According to the present invention, since the hydraulic pipe bypasses the engine front and extends along the output shaft of the engine toward the hydraulic oil tank, the hydraulic pipe is arranged so that the pipe length is shortened at a position where it is difficult to be affected by radiant heat from the engine. Thus, it is possible to suppress a rise in the temperature of the hydraulic oil flowing through the hydraulic pipe.

According to the present invention, since the oil supply port of the hydraulic oil tank and the oil filter are disposed in the area surrounded by the first and second power transmission mechanisms and the front strut frame, the transmission material (chain) in the first and second power transmission mechanisms Alternatively, without removing the belt), it is possible to supply oil to the hydraulic oil tank and replace the oil filter.

ADVANTAGE OF THE INVENTION According to this invention, the machine inner front of a threshing part can be opened by the drive system for driving a harvesting|reaping part, a tuyere, etc. concentrating and installing on the machine outer side of a threshing part. Therefore, the hydraulic oil tank installation space in the threshing part front lower side becomes open toward the machine inner side, and much cooling wind can be guide|induced to the hydraulic oil tank installation space.

BRIEF DESCRIPTION OF THE DRAWINGS It is a left side view of the combine which shows 1st Embodiment of this invention.
2 is a right side view of the combine.
3 is a plan view of the combine.
4 is a drive system diagram of the combine.
5 is a perspective view of the combine viewed from the front diagonally.
6 is a partial plan cross-sectional view of a threshing unit.
7 is a drive system diagram of the mission case.
It is a front view which shows the structure of an engine room and a threshing part.
It is a hydraulic circuit diagram which shows the structure of a work system hydraulic circuit.
It is a perspective view which shows the structure of a work system hydraulic circuit.
It is a perspective view of the threshing part seen from the diagonal front.
12 is an enlarged view of the left side of the threshing unit.
It is a top sectional view which shows the structure of an engine room and a threshing part.
It is a front view which shows the arrangement|positioning structure of a hydraulic circuit component.
Fig. 15 is a hydraulic circuit diagram showing the configuration of a travel system hydraulic circuit.
It is a top view which shows the piping structure of a hydraulic circuit.

EMBODIMENT OF THE INVENTION Below, embodiment which embodied this invention is demonstrated based on the drawing (FIG. 1-10) applied to a normal type combine. Fig. 1 is a left side view of a combine, Fig. 2 is a right side view thereof, and Fig. 3 is a plan view of the same. First, schematic structure of a combine is demonstrated, referring FIGS. 1-3. In addition, in the following description, toward the advancing direction of the traveling body 1, the left is simply called the left, and similarly, the right is simply called the right toward the advancing direction.

As shown in FIGS. 1-3, the normal combine in embodiment is equipped with the traveling body 1 supported by the crawler track 2 made from a rubber crawler as a traveling part, and a pair of right and left. In the front of the traveling body 1, a mowing part 3 that takes in uncut grain stems, such as rice (or barley, soybean or corn), while mowing, is a single-acting hydraulic cylinder 4 for lifting and lowering so that lifting and lowering can be adjusted. is fitted

On the left side of the traveling body 1, the threshing part 9 for threshing the harvesting grain stem supplied from the harvesting part 3 is mounted. In the lower part of the threshing part 9, the grain sorting mechanism 10 for performing rock|fluctuation sorting and wind sorting is arrange|positioned. A steering wheel 5 on which an operator rides is mounted on the front right side of the traveling body 1 . The engine 7 as a power source is disposed on the steering wheel 5 (below the driver's seat 42 ). To the rear of the steering wheel 5 (the right side of the traveling body 1), the grain tank 6 which takes out grain from the threshing part 9, and the grain in the grain tank 6 toward a track loading box (or a container, etc.) Arrange the grain discharge conveyor (8) for discharging. The grain discharge conveyor 8 is made to harden to the machine outer side, and it is comprised so that the grain in the grain tank 6 may be carried out by the grain discharge conveyor 8.

The harvesting unit 3 includes a feeder house 11 connected to the feeder 9a of the front of the threshing unit 9, and a grain header in the shape of a horizontal long bucket formed in connection with the front end of the feeder house 11 ( 12) is provided. A rake auger 13 (platform auger) is rotatably pivotally supported in the grain header 12 . A rake reel 14 with a tine bar is disposed above the front of the rake auger 13 . A barricade-like blade 15 is arrange|positioned in the whole of the grain header 12. As shown in FIG. The left and right grass division bodies 16 are formed protrudingly on the left and right both sides of the whole grain header 12. As shown in FIG. Moreover, the supply conveyor 17 is installed in the feeder house 11 inside. The beater 18 for harvesting grain stem injection|throwing-in (front rotor) is provided in the transfer terminal side (feed mouth 9a) of the supply conveyor 17. As shown in FIG. In addition, the lower surface of the feeder house 11 and the front end of the traveling body 1 are connected via a hydraulic cylinder 4 for lifting and lowering, and a harvesting input shaft 89 (feeder house conveyor shaft) to be described later is used as a lifting and lowering point. , The harvesting part 3 moves up and down with the hydraulic cylinder 4 for harvesting raising/lowering.

By the said structure, the repair side of the non-harvesting grain stem between the branching bodies 16 on the left and right is raked with the rake reel 14, and the petition side of the uncultivated grain stem is the cutting edge 15 ), and by the rotational drive of the rake auger 13, the harvesting grain stem is gathered in the feeder house 11 entrance vicinity near the center part of the left-right width of the grain header 12. The whole quantity of the harvesting grain stem of the grain header 12 is conveyed by the supply conveyor 17, and is comprised so that it may be thrown into the feed port 9a of the threshing part 9 with the beater 18. In addition, a hydraulic cylinder for horizontal control (not shown) for rotating the grain header 12 around a horizontal control fulcrum axis is provided, and the horizontal inclination of the grain header 12 is adjusted with the hydraulic cylinder for horizontal control, the grain header (12), and the blade 15, and it is also possible to support the rake reel 14 horizontally with respect to the pavement surface.

Moreover, as shown to FIG. 1, FIG. 3, the barrel 21 is rotatably provided in the chamber of the threshing part 9. The barrel 21 is axially supported by the barrel shaft 20 (refer FIG. 4) extended in the front-back direction of the traveling body 1 . On the lower side of the barrel 21, a water net 24 for lowering the grain is provided. Moreover, on the outer peripheral surface of the barrel 21 front, the spiral screw blade-shaped pick-up blade 25 is protruded and formed radially outward.

By the said structure, while the harvesting grain stem thrown in from the feed port 9a by the beater 18 is conveyed toward the rear of the traveling body 1 by rotation of the barrel 21, the barrel 21 and the sieve 24 It is kneaded and threshed in between. The threshing products, such as grains smaller than the mesh of the mesh 24, fall from the mesh 24. Straw shavings etc. which do not fall from the sieve 24 are discharged|emitted to a pavement from the dust discharge port 23 of the rear part of the threshing part 9 by the conveyance action of the barrel 21.

Moreover, in the upper side of the barrel 21, the some dust feed valve (not shown) which adjusts the conveyance speed of the threshing material in a class chamber is rotatably mounted. By angle adjustment of the said dust oscillation valve, the conveyance speed (residence time) of the threshing material in a processing chamber can be adjusted according to the kind and property of a harvesting grain stem. On the other hand, as the grain sorting mechanism 10 arrange|positioned below the threshing part 9, the rocking|fluctuation sorting board 26 for specific gravity sorting which has a grain pan, a chaff sieve, a grain sieve, a straw rack, etc. is provided.

Moreover, as the grain sorting mechanism 10, the tuyere 29 etc. in the form of an blast fan which supply a sorting wind to the rocking|fluctuation sorting board 26 are provided. The threshing product threshed in the barrel 21 and drained from the sieve 24 is grain (first products such as sizing) by the specific gravity separation action of the swing sorting board 26 and the wind sorting action of the tuyere 29 on the blower fan. ), a mixture of grains and straw (the second product such as grains with a root diameter), and straw shavings, etc.

In the lower side of the rocking|fluctuation sorting board 26, the 1st conveyor mechanism 30 and the 2nd conveyor mechanism 31 are provided as the grain sorting mechanism 10. The grain (No. 1 product) which fell from the rocking|fluctuation sorting board 26 by the sorting of the rocking|fluctuation sorting board 26 and the tuyere 29 in the shape of a ventilation fan is the No. 1 conveyor mechanism 30 and the grain conveyor 32 It is collected in the grain tank (6). The mixture of grains and straw (No. 2 product) is returned to the separation start end side of the shaking sorting board 26 via the No. 2 conveyor mechanism 31 and the No. 2 reduction conveyor 33, etc., and to the shaking sorting board 26 reselected by Straw shavings etc. are comprised so that it may be discharged|emitted to a pavement from the dust exhaust port 23 of the rear part of the traveling body 1 .

Moreover, as shown in FIGS. 1-3, the steering column 41 and the driver's seat 42 in which an operator sits are arrange|positioned on the steering wheel 5. As shown in FIG. The steering column 41 includes an accelerator lever 40 for adjusting the rotation speed of the engine 7, an annular steering wheel 43 for changing the course of the traveling body 1 by an operator's rotation operation, and the traveling body The main gear lever 44 which switches the moving speed of (1), the sub gear lever 45, the harvesting clutch lever 46 which drives or stops the harvesting|reaping part 3, and the threshing part 9 are driven Or the threshing clutch lever 47 which stop operation is arrange|positioned. In addition, a roof body 49 for an awning is attached to the front upper surface side of the grain tank 6 via a sun visor post 48, and the upper side of the steering wheel 5 is connected to the roof body 49 for an awning. It is designed to cover.

As shown in FIG. 1, FIG. 2, the track frame 50 on either side is arrange|positioned on the lower surface side of the traveling body 1. As shown in FIG. The track frame 50 includes a drive sprocket 51 for transmitting the power of the engine 7 to the crawler track 2 , a tension roller 52 for maintaining the tension of the crawler track 2 , and a crawler track 2 . A plurality of track rollers 53 for holding the grounded side of , and an intermediate roller 54 for holding the non-grounded side of the crawler track 2 are formed. The front side of the crawler track 2 is supported by the drive sprocket 51, the rear side of the crawler track 2 is supported by the tension roller 52, and the crawler track 2 is grounded by the track roller 53. side, and configured to support the non-grounded side of the crawler track 2 by the intermediate roller 54 .

Next, with reference to FIGS. 4-8, the drive structure of a combine is demonstrated. As shown in FIG.4 and FIG.7, the linear hydraulic type continuously variable transmission 64 for travel shift which has the hydraulic linear pump 64a and the hydraulic linear motor 64b is provided in the transmission case 63. As shown in FIG. The engine 7 is mounted on the upper right upper surface of the whole traveling body 1, and the transmission case 63 is arrange|positioned in the traveling body 1 front of the engine 7 left side. The output shaft 65 projecting from the engine 7 to the left side and the transmission input shaft 66 projecting from the transmission case 63 to the left side are connected to the engine output belt 67, the engine output pulley 68, and the transmission input. It is connected via a pulley (69).

Moreover, the turning hydraulic continuously variable transmission 70 for steering which has the hydraulic turning pump 70a and the hydraulic turning motor 70b is formed in the transmission case 63, and the linear hydraulic type continuously variable transmission 64 via the transmission input shaft 66. ) and the turning hydraulic continuously variable transmission 70, while transmitting the output of the engine 7 to the control handle 43 and the main gear lever 44 and the auxiliary gear lever 45, the straight hydraulic continuously variable transmission 64 and The turning hydraulic continuously variable transmission 70 is output controlled, and the left and right crawler tracks 2 are driven through the straight hydraulic continuously variable transmission 64 and the turning hydraulic continuously variable transmission 70 to travel and move within the pavement. .

Moreover, as shown to FIGS. 4-6 and FIG. 8, the barrel drive case 71 which axially supports the front end side of the barrel shaft 20 is provided. The barrel drive case 71 is arrange|positioned on the front side of the threshing part 9. The barrel input shaft 72 for driving the said harvesting part 3 and the barrel 21 is axially supported by the barrel drive case 71. Moreover, the main counter axis|shaft 76 as a fixed rotation axis which penetrates the left and right of the threshing part 9 is provided. A work part input pulley 83 is formed at the right end of the main counter shaft 76 . The right end of the main counter shaft 76 is connected to the engine output pulley 68 on the output shaft 65 of the engine 7 through the threshing clutch 84 which doubles as a tension roller and the work part drive belt 85 are connecting

A barrel input shaft 72 formed in front of the barrel 21 to extend in the left-right direction of the traveling body 1 , a beater 18 disposed in the left-right direction of the traveling body 1 , and the traveling body 1 extending in the left-right direction The formed harvesting input shaft 89 is formed. A barrel input mechanism (90) that transmits the driving force of the main counter shaft (76) to the barrel input shaft (72), which includes quick action drive pulleys (86, 87) and a quick action drive belt (88), from the engine (7) A quick action input mechanism 90 (quick action drive pulleys 86 and 87 and a quick action drive belt 88) is disposed at one end of the engine 7 side of the main counter shaft 76 to which the driving force is transmitted, so that the engine 7 is It is comprised so that the constant rotation output of the barrel 21 may be driven by constant rotation.

A beater drive mechanism and a harvesting drive mechanism that transmit the driving force of the main counter shaft 76 to the beater shaft 82 and the harvesting input shaft 89 are provided on the other end side of the main counter shaft 76 . In addition, the secondary counter shaft 104 is disposed between the beater shaft 82 and the main counter shaft 76, and the power relay pulleys 105 and 106 formed on the primary counter shaft 76 and the secondary counter shaft 104. ), the power relay belt 113 is wound to constitute a power relay mechanism that transmits power to the harvesting drive mechanism.

The harvesting drive belt 114 is wound around the harvesting drive pulleys 107 and 108 provided in each of the sub-counter shaft 104 and the beater shaft 82, and comprises the beater drive mechanism. And the rotational power from the engine 7 transmitted to the main counter shaft 76 by the harvesting|reaping drive belt 114 being extended by the harvesting clutch 109 which served also as a tension roller is a power relay mechanism and a beater drive mechanism is input to the beater shaft 82 through Moreover, so that the harvesting driving force from the engine 7 may be transmitted to the harvesting input shaft 89 via the harvesting drive chain 115 and the sprockets 116 and 117 from the beater shaft 82 by which the beater 18 was axially supported. , a mowing drive mechanism is constituted. Thereby, the harvesting|reaping part 3 is constant rotationally driven by the constant rotation output of the engine 7 together with the beater 18.

The tuyere shaft 100 which is the rotation shaft of the tuyere 29 in the shape of a blower has a hollow tubular shape, and the main counter shaft 76 is interpolated in the hollow part of the tuyere shaft 100. As shown in FIG. That is, it has a double shaft structure with the main counter shaft 76 and the winnowing shaft 100, and the main counter shaft 76 and the winnowing shaft 100 are mutually rotatably axially supported. Moreover, the winnowing fan drive belt 103 is wound around the winnowing fan drive pulleys 101 and 102 formed in each of the sub counter shaft 104 and the winnowing fan shaft 100, and comprises the winnowing fan drive mechanism. Accordingly, the rotational power from the engine 7 transmitted to the main counter shaft 76 is input to the beater shaft 82 through the power relay mechanism and the winnowing fan drive mechanism, and the winnowing fan 29 rotates the engine 7 at a constant rate. The output is driven by a constant rotation.

Moreover, the machine casing body 9b of the threshing part 9 is providing the mowing support frame body 36 in the upper surface side of all of the threshing machine casing pillars 34 among the traveling body 1 upper surface side. The harvesting bearing body 37 is attached to the front right side of the harvesting support frame body 36, and the forward/reversing switching case 121 mentioned later is attached to the front left side of the harvesting support frame body 36. And, through the harvesting bearing body 37 and the forward/reversing switching case 121, the harvesting input shaft 89 is pivotally supported on the front side of the harvesting support frame body 36 so as to be able to rotate in the left and right direction of the traveling body 1 Simultaneously, the beater shaft 82 (beater 18) of the left-right direction is pivotally supported through the beater bearing body 38 inside the harvesting support frame body 36 so that rotation is possible. Moreover, the barrel drive case 71 is attached to the upper surface side of the mowing support frame body 36, and the barrel input shaft 72 is axially supported by the barrel drive case 71.

On the other hand, the left-right direction harvesting input shaft 89 which drives the feed conveyor 17 in the feeder house 11 is provided. The harvesting driving force transmitted from the engine 7 to one end on the engine 7 side of the main counter shaft 76 is reversed from the other end of the main counter shaft 76 on the opposite side to the engine 7 . It is transmitted to the forward/reverse transmission shaft 122 of the switching case 121 . The harvesting input shaft 89 is driven through the bevel gear 124 for electrostatics or the bevel gear 125 for reversal of the forward/reversing conversion case 121 .

Moreover, the left-right barrel input shaft 72 is provided in the front side of the threshing part 9, and the driving force transmitted from the engine 7 to the engine 7 side one end in the main counter shaft 76 is a barrel input shaft. It is transmitted to the engine 7 side one end in (72). Moreover, while the barrel input shaft 72 provided in the front side of the threshing part 9 is arrange|positioned in the traveling body 1 left-right direction, it is a barrel 21 in the barrel shaft 20 arrange|positioned in the traveling body 1 front-back direction. This shaft is supported. And the front end side of the barrel shaft 20 is connected via the bevel gear mechanism 75 to the other right and left ends used as the opposite side to the engine 7 in the barrel input shaft 72. As shown in FIG. The driving force of the engine 7 is transmitted to the grain sorting mechanism 10 which sorts the grain after threshing, or the harvesting part 3 from the other right and left ends used as the opposite side to the engine 7 in the main counter shaft 76 is configured to do so.

That is, the right end of the barrel input shaft 72 is connected to the right end of the main counter shaft 76 on the side closer to the engine 7 via the barrel drive pulleys 86 and 87 and the barrel drive belt 88. do. The front end side of the barrel shaft 20 is connected via the bevel gear mechanism 75 to the left end of the barrel input shaft 72 extended in the left-right direction. The power of the engine 7 is transmitted from the right end of the main counter shaft 76 through the barrel input shaft 72 to the front end side of the barrel shaft 20, and the barrel 21 is rotationally driven in one direction. . On the other hand, it is comprised so that the driving force of the engine 7 may be transmitted to the grain sorting mechanism 10 arrange|positioned under the threshing part 9 from the left edge part of the main counter shaft 76.

Further, a conveyor drive belt 111 is interposed between the left end of the No. 1 conveyor shaft 77 of the No. 1 conveyor mechanism 30 and the left end of the No. 2 conveyor shaft 78 of the No. 2 conveyor mechanism 31 . Thus, the left end of the main counter shaft 76 is connected. The left end of the No. 2 conveyor shaft 78 is connected via the rocking|fluctuation sorting belt 112 to the left end of the crank-shaped rocking|fluctuation drive shaft 79 which pivotally supported the rear part of the rocking|fluctuation sorting board 26. As shown in FIG. That is, by operation of the threshing clutch lever 47 of an operator, the on-off control of the threshing clutch 84 is carried out. By ON operation of the threshing clutch 84, it is comprised so that each part and the barrel 21 of the grain sorting mechanism 10 may be driven.

Further, the grain conveyor 32 is driven via the No. 1 conveyor shaft 77 , and the No. 1 sorting grains of the No. 1 conveyor mechanism 30 are collected in the grain tank 6 . In addition, the No. 2 reduction conveyor 33 is driven via the No. 2 conveyor shaft 78, and the No. 2 sorting grains (No. 2 product) in which the straw shavings of the No. 2 conveyor mechanism 31 are mixed are moved by the shaking sorting board 26 is returned to the upper side of Further, in a structure in which a spreader (not shown) for scattering straw is formed in the dust discharge port 23, a spreader drive pulley (not shown) and a spreader drive belt (not shown) are interposed to the spreader, and the main counter shaft ( 76) and connect the left end of

The harvesting input shaft 89 as a conveyor input shaft which axially supports the transfer terminal side of the supply conveyor 17 is provided. The header drive shaft 91 is axially supported so that it can rotate freely on the back side of the right part of the grain header 12. A harvesting drive chain 115 and sprockets 116 and 117 are interposed at the left end of the beater shaft 82 to connect the left end of the forward/reverse transmission shaft 122, and the harvesting input shaft 89 is a forward/reversing switching case It is connected to the forward and reverse transmission shaft 122 via (121). Moreover, the right edge part of the harvesting input shaft 89 is connected to the left edge part of the header drive shaft 91 extended in the left-right direction via the header drive chain 118 and the sprockets 119 and 120. A rake shaft 93 for supporting the rake auger 13 is provided. A middle portion of the header drive shaft 91 is connected to the right side of the rake shaft 93 via a rake drive chain 92 .

In addition, a reel shaft 94 for supporting the rake reel 14 is provided. The right end of the rake shaft 93 is connected to the right end of the reel shaft 94 via an intermediate shaft 95 and reel drive chains 96 and 97 . A blade 15 is connected to the right end of the header drive shaft 91 via a blade drive crank mechanism 98 . By the ON/OFF operation of the harvesting clutch 109, the supply conveyor 17, the rake auger 13, the rake reel 14, and the blade 15 are drive-controlled, and the uncultivated grain stem of the pavement is driven. It is comprised so that the waterline side may be mowinged continuously.

In addition, the electrostatic bevel gear 124 integrally formed with the forward and reverse transmission transmission shaft 122, and the bevel gear 125 for reversing supported so as to be freely rotatable on the harvesting input shaft 89, and the bevel gear for static electricity ( An intermediate bevel gear 126 , which connects the bevel gear 125 for reversing to 124 , is installed in the forward/reversing switching case 121 . The intermediate bevel gear 126 is always meshed with the bevel gear 124 for electrostatic and the bevel gear 125 for reversing. On the other hand, the spline engagement shaft is supported by the harvesting input shaft 89 so that the slider 127 can slide freely. The slider 127 is configured to be engageable so that the slider 127 can be hooked and removed from the electrostatic bevel gear 124 through the claw clutch-shaped electrostatic clutch 128, and reversed through the claw clutch-shaped reversing clutch 129 The bevel gear 125 is configured to be engageable so that the slider 127 can be hooked and removed.

Further, a forward/reversing switching shaft 123 for sliding the slider 127 is provided, the forward/reversing switching arm 130 is provided on the forward/reversing switching shaft 123, and a forward/reversing switching lever 212 (forward/reverse rotation) operation tool) operation to swing the forward/reversing switching arm 130, rotating the forward/reversing switching shaft 123, and sliding the slider 127 to the forward/reversing bevel gear 124 or the bevel gear for reversing , through the electrostatic clutch 128 or the reversing clutch 129, the slider 127 is alternatively hung on the electrostatic bevel gear 124 or the reversing bevel gear 125, and the mowing input shaft is connected to the forward and reverse transmission shaft 122 (89) is configured to be positively connected or reversely connected.

A structure including a forward/reversing switching case 121 as a forward/reversing switching mechanism for driving the supply conveyor 17 forward or reversely, the supply conveyor 17 being interposed in the forward/reversing switching case 121 on the beater shaft 82 . ) are connected. Therefore, the feed conveyor 17 etc. of the feeder house 11 can be reversed by the reverse switching operation of the forward/reverse switching case 121, and the straw full in the feeder house 11 etc. can be removed quickly.

The right end of the auger drive shaft 158 is connected to the output shaft 65 of the engine 7 via an auger drive belt 157 and an auger clutch 156 on a tension pulley. A bevel gear mechanism 159 is interposed at the left end of the auger drive shaft 158 to connect the front end side of the lateral feed auger 160 at the bottom of the grain tank 6 . The paper feed auger 162 of the grain discharge conveyor 8 is connected through the bevel gear mechanism 161 on the rear end side of the transverse feed auger 160, and the bevel gear mechanism ( 163) through which the grain discharge auger 164 of the grain discharge conveyor 8 is connected. Moreover, the grain discharge lever 155 which ON/OFF operates the auger clutch 156 is provided. The grain discharge lever 155 is attached to the grain tank 6 front surface as the driver's seat 42 rear, and the operator is comprised so that operation of the grain discharge lever 155 is possible from the driver's seat 42 side.

Next, the power transmission structure of the transmission case 63 etc. is demonstrated with reference to FIGS. 4 and 7, etc. FIG. As shown in Figs. 4 and 7, etc., in the transmission case 63, a pair of linear pumps 64a and a linear motor 64b, and a hydraulic type continuously variable transmission 64 for linear movement (running main speed), 1 A hydraulic continuously variable transmission 70 for swing having a pair of swing pumps 70a and a swing motor 70b is formed. The transmission input shaft 66 of the transmission case 63 is gear-connected to each pump shaft 258, 259 of the linear pump 64a and the swing pump 70a, respectively, and it is comprised so that it may be driven. The engine output belt 67 is hooked on the transmission input pulley 69 on the transmission input shaft 66 . The output of the engine 7 is transmitted to the transmission input pulley 69 via the engine output belt 67, and the linear pump 64a and the turning pump 70a are driven.

The driving force output from the output shaft 65 of the engine 7 is transmitted via the engine output belt 67 and the transmission input shaft 66 to the pump shaft 258 of the linear pump 64a and the pump shaft of the orbiting pump 70a. (259) respectively. In the linear hydraulic continuously variable transmission 64 , hydraulic oil is appropriately transferred from the linear pump 64a toward the linear motor 64b by the power transmitted to the pump shaft 258 . Similarly, in the turning hydraulic type continuously variable transmission 70, hydraulic oil is appropriately transferred from the turning pump 70a toward the turning motor 70b by the power transmitted to the pump shaft 259 .

Moreover, the transmission charge pump 151 for supplying hydraulic oil to each hydraulic pump 64a, 70a and each hydraulic motor 64b, 70b is attached to the pump shaft 259 . The linear hydraulic continuously variable transmission 64 changes and adjusts the inclination angle of the rotary swash plate in the linear pump 64a according to the amount of operation of the main gear lever 44 and the steering handle 43 disposed on the control column 41 . Thus, by changing the discharge direction and the discharge amount of the hydraulic oil to the linear motor 64b, it is comprised so that the rotation direction and rotation speed of the motor shaft 260 for linear movement protruding from the linear motor 64b may be adjusted arbitrarily.

The rotational power of the motor shaft 260 for going straight is transmitted from the straight transmission gear mechanism 250 to the auxiliary transmission gear mechanism 251. The auxiliary transmission gear mechanism 251 has the auxiliary transmission low gear 254 and the auxiliary transmission medium speed gear 255 and the auxiliary transmission high speed gear 256 which are switched by the auxiliary transmission shifters 252 and 253. By operation of the auxiliary gear lever 45 disposed on the control column 41, the output rotation speed of the motor shaft 260 for going straight is configured to be selectively switched to three gear stages of low speed, medium speed, or high speed. . Moreover, it has a neutral position (a position where the output of a sub-transmission becomes zero) between the low speed of a sub-transmission, and a medium speed and a high speed.

A drum-type parking brake 266 is provided on a parking brake shaft 265 (sub transmission output shaft) formed on the output side of the auxiliary transmission gear mechanism 251 . The rotational power from the auxiliary transmission gear mechanism 251 is transmitted to the left and right differential mechanisms 257 from the auxiliary transmission output gear 267 fixed to the parking brake shaft 265 . The differential mechanism 257 on the left and right is provided with a planetary gear mechanism 268, respectively. Further, a pulse generating rotary wheel body 292 for straight travel is formed on the parking brake shaft 265, and the number of revolutions of the straight output (straight vehicle speed = sub transmission output gear 267) is set by a straight vehicle speed sensor (not shown). speed change output).

Each of the left and right planetary gear mechanisms 268 includes one sun gear 271 , a plurality of planet gears 272 meshing with the sun gear 271 , and a ring gear 273 meshing with the planetary gear 272 , , a plurality of planetary gears 272 are provided with carriers 274 rotatably disposed on the same circumference, respectively. The carriers 274 of the right and left planetary gear mechanisms 268 are disposed so as to face each other with appropriate spacing on the same axis. The center gear 276 is fixed to the sun gear shaft 275 on which the left and right sun gears 271 are formed.

Each of the left and right ring gears 273 is concentrically disposed on the sun gear shaft 275 in a state in which the internal gears on the inner peripheral surface thereof are meshed with the plurality of planetary gears 272 . Moreover, the external gears on the outer peripheral surface of each of the left and right ring gears 273 are connected to the steering output shaft 285 via intermediate gears 287 and 288 for left and right turning output, which will be described later. Each ring gear 273 is rotatably supported by left and right forced differential gear output shafts 277 protruding left and right outward from the outer surface of the carrier 274 . The left and right axle shafts 278 are connected to the left and right forced differential gear output shafts 277 via final gears 278a and 278b. Left and right drive sprockets 51 are attached to the left and right axles 278 . Accordingly, the rotational power transmitted from the sub-transmission gear mechanism 251 to the left and right planetary gear mechanisms 268 is transmitted from the left and right axles 278 to the respective drive sprockets 51 at the same rotational speed in the same direction, The crawler track 2 is driven at the same rotation speed in the same direction to move the traveling body 1 straight forward (forward, backward).

The turning hydraulic continuously variable transmission 70 changes the inclination angle of the swash plate in the turning pump 70a according to the rotational operation amount of the main gear lever 44 and the steering wheel 43 arrange|positioned in the control column 41. It is comprised so that the rotation direction and rotation speed of the turning motor shaft 261 protruding from the turning motor 70b may be adjusted arbitrarily by adjusting and changing the discharge direction and discharge amount of the hydraulic oil with respect to the turning motor 70b. Further, a turning pulse generating rotary wheel body 294 is formed on a steering counter shaft 280 to be described later, and a turning rotation sensor (a turning vehicle speed sensor) (not shown) rotates the steering output of the turning motor 70b. It is configured to detect the number (turning vehicle speed).

Moreover, in the transmission case 63, the wet multi-plate turning brake 279 (steering brake) formed on the turning motor shaft 261 (steering input shaft), and the reduction gear to the turning motor shaft 261 A steering counter shaft 280 connected via 281, a steering output shaft 285 connected to the steering counter shaft 280 via a reduction gear 286, and a reverse gear on the left ring gear 273 ( A left input gear mechanism 282 for connecting the steering output shaft 285 via 284 , and a right input gear mechanism 283 for connecting the steering output shaft 285 to the right ring gear 273 are formed. The rotational power of the turning motor shaft 261 is transmitted to the steering counter shaft 280 . The rotational power transmitted to the steering counter shaft 280 is reverse rotational power via the left intermediate gear 287 and the reversing gear 284 on the steering output shaft 285 in the input gear mechanism 282 on the left as reverse rotational power. While transmitted to the gear 273, it is transmitted to the right ring gear 273 as electrostatic rotational power via the right middle gear 288 on the steering output shaft 285 in the right input gear mechanism 283.

When the auxiliary transmission gear mechanism 251 is neutralized, power transmission from the linear motor 64b to the left and right planetary gear mechanisms 268 is blocked. At the time of sub-transmission output other than neutral from the sub-transmission gear mechanism 251, the left and right from the straight motor 64b via the sub-transmission low-speed gear 254 or the sub-transmission medium-speed gear 255 or the sub-transmission high-speed gear 256 Power is transmitted to the planetary gear mechanism 268 . On the other hand, when the output of the turning pump 70a is set to a neutral state and the turning brake 279 is turned on, power transmission from the turning motor 70b to the left and right planetary gear mechanisms 268 is blocked. . When the output of the turning pump 70a is set to a state other than neutral and the turning brake 279 is turned off, the rotational power of the turning motor 70b is the left input gear mechanism 282 and the reversing gear ( It is transmitted to the left ring gear 273 through 284 , while transmitted to the right ring gear 273 through the right input gear mechanism 283 .

As a result, at the time of forward rotation (reverse rotation) of the turning motor 70b, the left ring gear 273 reverses (reverses forward) and the right ring gear 273 turns forwards (reverses) at the same rotation speed in opposite directions. do. That is, the shift outputs from the respective motor shafts 260 and 261 are respectively transmitted to the drive sprockets 51 of the left and right crawler tracks 2 via the auxiliary transmission gear mechanism 251 or the differential mechanism 257, respectively. and the vehicle speed (travel speed) and the traveling direction of the traveling body 1 are determined.

That is, when the linear motor 64b is driven in a state in which the turning motor 70b is stopped and the left and right ring gears 273 are stopped and fixed, the rotation output from the linear motor shaft 260 is the left and right sun gear 271 is transmitted to the left and right at the same rotational speed, and via the planetary gears 272 and the carrier 274, the left and right crawler tracks 2 are driven at the same rotational speed in the moving direction, and the traveling body 1 travels straight.

Conversely, when the turning motor 70b is driven in a state in which the linear motor 64b is stopped and the left and right sun gears 271 are stationary and fixed, the left ring gear ( 273) rotates forward (reverse rotation), and the ring gear 273 on the right rotates in reverse (forward rotation). As a result, one of the drive sprockets 51 of the crawler tracks 2 on the left and right rotates forward, the other rotates backward, and the traveling body 1 changes direction on the spot (a turning spin turn). ) do.

In addition, by driving the left and right ring gears 273 with the turning motor 70b while driving the left and right sun gears 271 with the straight motor 64b, a difference occurs in the speeds of the left and right crawler tracks 2, The traveling body 1 turns (U-turn) to the left or right with a turning radius larger than the new turning radius while advancing or retreating. The turning radius at this time is determined according to the speed difference between the left and right crawler tracks 2 . It swings left or right in a state in which the running driving force of the engine 7 is always transmitted to the left and right crawler tracks 2 .

Next, with reference to FIGS. 9-16, the working system hydraulic circuit 180 and the traveling system hydraulic circuit 200 in the normal combine of this embodiment are demonstrated. As shown in FIGS. 9-14, the work system hydraulic circuit 180 is a hydraulic actuator, It is for the reel raising/lowering on the right and left which supports the hydraulic cylinder 4 for raising/lowering and the rake reel 14 so that raising/lowering is possible. Hydraulic cylinders 27L, 27R, the hydraulic cylinder 55 for auger raising/lowering which supports the grain discharge auger 164 so that raising/lowering is possible, and the hydraulic cylinders 56L, 56R for gas raising/lowering of the right and left which raises and lowers the traveling body 1 ), a hydraulic oil tank 57 for storing hydraulic oil, a hydraulic oil tank 57 and a hydraulic pump 59 connected via an oil filter 58, and hydraulic valves 60A to 60E for switching the flow of hydraulic oil to provide Moreover, the hydraulic valves 60A-60E are assembled to the hydraulic valve unit 60 mounted on the traveling body 1 .

The hydraulic pump 59 is hydraulically connected to the hydraulic cylinder 4 for harvesting|reaping raising/lowering through 60 A of hydraulic valves for harvesting|reaping raising/lowering. By operation to incline the harvesting posture lever (not shown) in the driving operation part (steering wheel) 5 to the front-back direction, the hydraulic cylinder 4 for raising/lowering a harvesting is actuated, and an operator raises the harvesting part 3 to an arbitrary height. (For example, it is comprised so that it may move up and down by a mowing work height, a non-work height, etc.). On the other hand, the hydraulic pump 59 for work is hydraulically connected to the hydraulic cylinders 27L and 27R for reel raising/lowering via the hydraulic valve 60B for reel raising/lowering. The hydraulic cylinders 27L and 27R for lifting and lowering the reels are operated by operation etc. of tilting the mowing posture lever (not shown) in the left and right direction, and the operator raises and lowers the rake reel 14 to an arbitrary height, It is composed to mowing the uncut grain stem.

The hydraulic pump 59 for work is hydraulically connected to the hydraulic cylinder 55 for auger raising/lowering through 60 C of hydraulic valves for auger raising/lowering. By operation to incline the grain discharge lever 155 in the operation operation part (steering wheel) 5 to the front-back direction, the hydraulic cylinder 55 for auger raising/lowering is operated, and an operator in the grain discharge conveyor 8 The rice outlet of the grain discharge auger 164 is moved up and down to an arbitrary height. Moreover, the grain discharge auger 164 is rotated horizontally with the paper feed auger 162 and the bevel gear mechanism 163 by the electric motor 165, and a rice discharge port is moved horizontally. That is, the rice discharge port is located above a track loading box or a container, and it is comprised so that the grain in the grain tank 6 may be discharged in a track loading box or a container.

The hydraulic oil tank 57 and the hydraulic pump 59 for work are hydraulically connected to 56 L of hydraulic cylinders for left body raising/lowering via the hydraulic valve 60D for left-side body raising/lowering. On the other hand, the hydraulic oil tank 57 and the hydraulic pump 59 for work are hydraulically connected to the hydraulic cylinder 56R for the right side body raising/lowering via the hydraulic valve 60E for the right side body raising/lowering via the hydraulic valve 60E. The left and right sides of the traveling body 1 are raised and lowered independently by operating the left and right hydraulic cylinders 56L, 56R for raising/lowering the gas independently of each other.

Accordingly, when the hydraulic cylinders 56L, 56R for lifting and lowering the aircraft on the left and right are simultaneously operated and the track frames 50 and 50 on the left and right are lowered relative to the traveling body 1 at the same time, the traveling body 1 is operated by the crawlers on the left and right sides. With respect to the track 2, 2 contact portion, it moves upward (raises), and the relative height (height) of the traveling body 1 with respect to the crawler track 2, 2 contact portion becomes high. Conversely, when the right and left track frames 50, 50 are raised with respect to the traveling body 1 at the same time, the traveling body 1 approaches (descends) against the contact points of the crawler tracks 2, 2 on the left and right sides, and travels The relative height (garage height) of the aircraft 1 with respect to the crawler track 2, 2 grounding portion is lowered.

Then, the left track frame 50 is lowered relative to the traveling body 1 by operating the left hydraulic cylinder 56L for lifting and lowering the aircraft, or the right track frame 50 is operated by operating the right hydraulic cylinder 56R for lifting and lowering the aircraft. is raised with respect to the traveling body 1 (or even if both operations are performed simultaneously), the traveling body 1 is inclined downward to the right. Conversely, actuating the hydraulic cylinder 56R for lifting the right body to lower the right track frame 50 relative to the traveling body 1, or operating the hydraulic cylinder 56L for raising and lowering the left body to operate the right track frame 50 is raised with respect to the traveling body 1 (or even if both operations are performed simultaneously), the traveling body 1 is inclined downward to the left.

The hydraulic oil tank 57 , the hydraulic pump 59 , and the hydraulic valve unit 60 are mounted on the traveling body 1 , respectively, and are connected to each other via the hydraulic pipes 181 to 183 . On the traveling body 1, a hydraulic oil tank 57 is provided on the front left, while a hydraulic pump 59 is fixed to the front of the engine 7 mounted on the front right, and is built into the hydraulic oil tank 57, An oil filter 58 and a hydraulic pump 59 are connected by a hydraulic pipe 181 . Moreover, on the traveling body 1, the hydraulic valve unit 60 is arrange|positioned at the position used as the engine 7 rear, and the discharge side of the hydraulic pump 59 is a hydraulic valve unit via the hydraulic pipe 182. (60) is connected to. Moreover, the hydraulic valve unit 60 is connected with the hydraulic oil tank 57 via the hydraulic pipe 183 used as a hydraulic oil return pipe.

The hydraulic oil tank 57 is provided on the traveling body 1 at a spatial position surrounded by the feeder house 11 and the beater 18 , and the engine 7 and the hydraulic oil tank 57 are positioned in front of the traveling body 1 . They are placed side by side left and right. That is, the hydraulic oil tank 57 is arranged in the space surrounded by the machine casing body of the feeder house 11 and the threshing unit 9, and dust from the harvesting unit 3 can be suppressed from being deposited in the hydraulic oil tank 57. Therefore, it is possible to prevent contamination of hydraulic oil due to intrusion of dust from the oil supply port 184 or the like. Moreover, since the cooling wind from the engine 7 flows in the installation space of the hydraulic oil tank 57, even if it does not form an oil cooler on the working system hydraulic circuit 180, a raise of the hydraulic oil temperature can be suppressed, and each hydraulic member can be properly driven.

The hydraulic oil tank 57 has an oil supply port 184 protruding toward the left side (outside of the machine) on the left side (outside of the machine), and has an oil filter 58 that can be inserted and removed from the left side. are doing Therefore, by removing the threshing cover 185 provided in the left side (machine outer side) of the threshing part 9, the oil supply port 184 and the oil filter 58 can be accessed easily. Therefore, while the oil supply operation|work of the hydraulic oil tank 57 and the exchange operation|work of the oil filter 58 become easy, the improvement of the maintainability in the work system hydraulic circuit 180 can be aimed at.

Moreover, the hydraulic pipes 181 and 183 connected to the hydraulic oil tank 57 are formed extending from the front of the hydraulic oil tank 57 and the engine 7 to the left and right, and the hydraulic pipe 182 is connected to the engine 7 . The hydraulic pump 59 and the oil filter 58 arranged in the front communicate with each other. That is, the hydraulic pipes 181 and 183 extend along the output shaft 65 of the engine 7 toward the hydraulic oil tank 57 by bypassing the front of the engine 7 . Moreover, the hydraulic pipes 182 and 183 are formed to extend rearward past a cooling fan provided on the right side of the engine 7 , and are connected to the hydraulic valve unit 60 . Therefore, the hydraulic piping 181-183 is arrange|positioned so that it may become short in the position which is not easily influenced by the radiant heat from the engine 7, and it can suppress that the temperature of the hydraulic oil which flows through a hydraulic piping becomes high.

14 to 16 , the travel system hydraulic circuit 200 includes a linear pump 64a, a linear motor 64b, a swing pump 70a, a swing motor 70b, a transmission charge pump 151, An oil filter 152 and an oil cooler 153 are provided. The linear pump 64a and the linear motor 64b in the linear hydraulic continuously variable transmission 64 are connected in a closed loop form by the linear waste flow path 201 . On the other hand, the turning pump 70a and the turning motor 70b in the turning hydraulic type continuously variable transmission 70 are connected by the turning closed flow path 202 in the closed loop form. By driving the linear pump 64a and the swing pump 70a with the rotational power of the engine 7 to control the swash plate angle of the linear pump 64a or the swing pump 70a, the linear motor 64b or the swing motor ( The discharge direction and discharge amount of the hydraulic oil with respect to 70b) are changed, and the straight motor 64b and the turning motor 70b operate forward and reverse.

The travel system hydraulic circuit 200 includes a straight forward valve 203 that switches and operates in response to manual operation of the main gear lever 44 , and a straight forward cylinder connected to the transmission charge pump 151 via the linear valve 203 . 204 is formed. When the rectilinear valve 203 is switched and operated, the rectilinear cylinder 204 operates to change the swash plate angle of the rectilinear pump 64a, and the rotation speed of the rectilinear motor shaft 260 of the rectilinear motor 64b is changed steplessly A forward shifting operation such as turning or reversing is executed.

The travel system hydraulic circuit 200 includes a swing valve 206 that switches and operates in response to manual operation of a steering wheel 43 , and a swing cylinder connected to the transmission charge pump 151 via the swing valve 206 . 207) is provided. When the swing valve 206 is switched, the swing cylinder 207 is operated to change the swash plate angle of the swing pump 70a, and the rotation speed of the swing motor shaft 261 of the swing motor 70b is changed steplessly A left-right turning operation such as turning or reversing is performed, and the traveling body 1 changes the traveling direction to the left and right, and changes the direction in pavement immersion or corrects the course.

The suction side of the transmission charge pump 151 is connected to a strainer 217 in the transmission case 63 via a hydraulic pipe 208 . A charge introduction flow path 218 is connected to the discharge side of the transmission charge pump 151 via a hydraulic pipe 209 , and an oil filter 152 is provided in the middle of the hydraulic pipe 209 . On the downstream side of the charge introduction flow passage 218 , a charge branch flow passage 219 connected to both waste flow passages 201 , 202 is connected. Therefore, while the engine 7 is being driven, the hydraulic oil from the transmission charge pump 151 is constantly replenished to both waste oil passages 201 and 202 .

Moreover, the charge branch flow path 219 is connected to the rectilinear cylinder 204 via the rectilinear valve 203 , and is connected to the turning cylinder 207 via the turning valve 206 . In addition, the charge branch flow path 219 is connected to the transmission case 63 via the surplus relief valve 220 and the hydraulic pipe 210, and an oil cooler 153 is installed in the middle of the hydraulic pipe 210. have. Accordingly, when the surplus of the hydraulic oil from the transmission charge pump 151 is returned into the transmission case 63 via the surplus relief valve 220 , it is cooled by the oil cooler 153 .

Next, the engine room 146 in which the engine 7 is installed is demonstrated with reference to FIGS. 8, 13, 14, etc. FIG. 8, 13 and 14, a pair of left and right engine room posts 147 are erected on the rear side of the steering wheel 5 in the upper surface of the traveling body 1, and the left and right engine room posts ( A rear plate body 148 is provided between the 147 , and the rear of the engine compartment 146 under the driver's seat 42 is covered. Further, a box-shaped wind tunnel case 170 is erected on a right engine room post 147 formed at the right end of the steering wheel 5 of the traveling body 1 via an opening/closing fulcrum shaft 171 . . A vibration damping net is provided in the machine outer opening on the right side of the wind tunnel case 170, and the presence of the vibration damping net prevents the intrusion of straw debris into the wind tunnel case 170 and into the engine room 146. .

The radiator 154 for water cooling is erected and formed inside the wind tunnel case 170 machine in the upper surface side of the traveling body 1, and the radiator 154 is made to replace the cooling fan 149 of the engine 7. And the shroud 150 of the aspect which covers the whole ventilation range part of the radiator 154 is provided, and the cooling fan 149 is arrange|positioned in the opening formed in this shroud 150. As shown in FIG. Moreover, in the wind tunnel case 170, the oil cooler 153 is provided. By rotation of the cooling fan 149, outside air (cooling wind) is drawn in from the machine outer opening on the right side of the wind tunnel case 170 into the wind tunnel case 170, and vibration is suppressed from the machine inner opening on the left side of the wind tunnel case 170 The completed cooling air is transferred into the engine room 146 . Thereby, the oil cooler 153 , the radiator 154 , the engine 7 , and the like are cooled by the cooling wind flowing into the engine room 146 .

Next, about the structure of the mowing support frame body 36 periphery used as a part of the machine casing body 9b of the threshing part 9, with reference to FIG. 5, FIG. 6, FIG. 8, and FIGS. 11-14, etc. Explain. As shown in FIGS. 5, 6, 8, 11-14, etc., the mowing support frame body 36 is a traveling body ( at the front position of each thresher casing post (rear side post frame) 34) on the left and right. 1) For the upper and lower mowing support frames that connect the left and right mowing support posts (front post frame) 36a formed by standing up from the upper surface, the left and right thresher casing posts 34, and the left and right mowing support posts (36a) back and forth It has beam frames 36b and 36c. Beam frame 36b, 36c for harvesting support frames is erected on each of the upper end of the support post 36a for harvesting support arrange|positioned before and behind, and the threshing machine casing post 34, and an intermediate|middle part.

The both ends of the beater bearing body 38 on either side are connected to the middle part of the beam frame 36b, 36c for upper and lower mowing support frames formed on the left and right, and the beater 18 is formed by the beater bearing body 38 on the left and right. It is axially supported in the harvesting|reaping support frame body 36. In the harvesting support frame body 36, the side plate 186 which covers the beater 18 left and right side, the top plate 187 which covers the beater 18 upper side, the front plate 188 which covers the beater 18 whole surface, the beater 18 A bottom plate 189 covering the lower side is formed. That is, as for the harvesting support frame body 36, above the lower beam frame 36c, the closed space which connects the rear end of the feeder house 11 and the feed port 9a is comprised. And the beater 18 which guides the grain stem from the supply conveyor 17 to the supply mouth 9a smoothly is provided in the said closed space.

The side plate 186 is provided so as to seal the region surrounded by the posts 34 and 36a and the beam frames 36b and 36c, and the beater is axially supported by the beater bearing body 38 disposed outside the side plate 186. It has a hole through the shaft (82). The top plate 187 is erected on the left and right beam frames 36b, and the barrel drive case 71 is provided in the upper surface. As for the front plate 188, the front edge and upper edge of the top plate 187 are connected, and it is extended downward toward the feeder house 11 upper side, and is formed. While the front edge of the bottom plate 189 is connected with the rear edge of the bottom plate 190 of the feeder house 11, the rear edge of the bottom plate 189 is the bottom of the inlet 9a in front of the barrel 21 Connected with the face front edge, the bottom plate 189 acts as a guide plate for the grain stem from the feeder house 11 to the feed mouth 9a.

The hydraulic oil tank 57 is installed in the space used as the beater 18 installation space lower side of the harvesting support frame body 36, and the upper part of the hydraulic oil tank 57 is covered by the bottom plate 189. Moreover, the front of the hydraulic oil tank 57 is covered with the front side cover plate 191 connected with the bottom plate 189. As shown in FIG. In the rear of the hydraulic oil tank 57 , a tuyere 29 in the shape of a blowing fan is formed, and the outer periphery of the tuyere 29 is covered with the tuyere cover plate 192 . Therefore, in the harvesting support frame body 36, the hydraulic oil tank 57 is provided in the space surrounded by the bottom plate 189, the front side cover plate 191, and the tuyere cover plate 192.

The installation space of the hydraulic oil tank 57 by the bottom plate 189, the front side cover plate 191, and the tuyere cover plate 192 constitutes a passage in which the left and right sides were opened, and communicates with the engine room 146 on the right side. has been Moreover, the machine casing body 9b of the threshing part 9 is equipped with the threshing side plate 193 of right and left, The right side threshing side plate 193 front edge is located in front rather than the engine room post 147 The right side It is fixed to the thresher casing post 34. Therefore, a part of the cooling wind taken in from the outside air from the cooling fan 149 passes through the engine room 146 and flows into the hydraulic oil tank 57 installation space in the mowing support frame body 36, and the hydraulic oil tank 57 to cool

Moreover, a part of cooling wind which passes through the engine room 146 flows into the air path by the tuyere cover plate 192 behind the hydraulic oil tank 57 installation space by rotation of the tuyere 29. Thereby, since the airflow which flows in the front-back direction through the space between the engine room 146 and the threshing part 9 is formed, it is guided to this front-back direction airflow, and outside air flows in also from the traveling body 1 front. . Outside air flows into the hydraulic oil tank 57 installation space from the front of the traveling body 1 to cool the hydraulic oil tank 57 together with a part of the cooling wind from the engine room 146 . That is, when the exhaust wind from the engine 7 flows positively to the tuyere 29 side, outside air flows into the hydraulic oil tank 57 installation space together with a part of the cooling wind of the engine 7, and the hydraulic oil tank 57 Increase the cooling effect.

As above-mentioned, the temperature of the working oil which circulates in the working system hydraulic circuit 180 containing the hydraulic oil tank 57 rises by setting it as the structure in which the cooling wind from the engine room 146 passes through the hydraulic oil tank 57. can be deterred from doing Therefore, it is not necessary to provide an oil cooler in the working system hydraulic circuit 180, and by making the working system hydraulic circuit 180 and the traveling system hydraulic circuit 200 different systems, only the traveling system hydraulic circuit 200 is provided. It can be set as the structure which forms the oil cooler 153. As a result, the capacity of the oil cooler 153 can be reduced, and the cooling efficiency of the radiator 154 and the engine 7 located on the downstream side of the oil cooler 153 in the cooling wind flow can be increased.

Moreover, the sub counter shaft 104 which receives the driving force from the engine 7 is axially supported by the thresher casing post (rear post frame) 34, and the beater bearing connected with the beam frames 36b, 36c for upper and lower mowing support frames. The beater shaft 82 of the beater 18 is axially supported by the sieve 38 . The harvesting input shaft 89 axially supported at the position forward rather than the prop (front side post frame) 36a for harvesting support has penetrated the feeder house 11. As shown in FIG. A first power transmission mechanism for transmitting the rotational power of the sub counter shaft 104 to the beater shaft 82 (a beater drive mechanism by the drive pulleys 107 and 108 and the harvesting drive belt 114), and the beater shaft 82 The 2nd power transmission mechanism (the harvesting drive chain 115 and the harvesting drive mechanism by the sprockets 116 and 117) which transmits the rotation power of ) to the harvesting input shaft 89 is provided. And the oil supply port 184 of the hydraulic oil tank 57 and the oil filter 58 are arrange|positioned in the area|region surrounded by the said 1st and 2nd power transmission mechanism and the prop 36a for mowing support in front. Thereby, the oil supply operation for the hydraulic oil tank 57 and the oil filter 58 replacement operation can be performed without removing the transmission material (chain or belt) in the first and second power transmission mechanisms. It is possible to improve the maintainability of the working hydraulic circuit 180 .

Moreover, the threshing part 9 is axially supporting the winnowing fan 29 on the back side of the threshing machine casing post (rear post frame) 34, The main counter axis|shaft which can rotate relatively with respect to the winnowing fan shaft 100 of the winnowing fan 29. (76) It penetrates the inside of this wind tunnel 100. Then, while the main counter shaft 76 receives the power from the engine 7 and transmits the power to the sub counter shaft 104, the rotational power of the sub counter shaft 104 is the wind turbine shaft 100 and the beater shaft. (82) is forwarded branched to each. The drive system for driving the harvesting|reaping part 3, the grain sorting mechanism 10, and the tuyere 29 is centrally installed in the left side (machine outside) of the threshing part 9, The right side of the threshing part 9 The front (inside the machine) can be opened. Therefore, the right side of the hydraulic oil tank 57 installation space in the threshing part 9 front lower side can be opened, and much cooling wind can be guide|induced to the hydraulic oil tank 57 installation space.

1: traveling body
3: yew
5: steering wheel
7: engine
9: threshing unit
9a: rush
9b: machine casing body
11: Feeder House
17: feed conveyor
18 : Bitter
21 : sudden action
29: wind chime
34: thresher casing support
35: harvesting support frame body
36a: prop for mowing support frame
36b: beam frame for mowing support frame
36c: beam frame for mowing support frame
37: mowing bearing body
38: beater bearing body
57: hydraulic oil tank
58: oil filter
59: hydraulic pump
63: mission case
76: wind shaft (constant rotation shaft)
82: beater shaft (front rotor shaft)
89: harvesting input shaft
184: refueling port
185: threshing cover
186: side plate
187: top plate
188: front panel
189: bottom plate
190: bottom plate (feeder house)
191: front cover plate
192: tuyere cover plate
193: threshing side plate

Claims (5)

A threshing unit provided with a barrel, and a traveling body on which an engine is mounted,
In the combine which forms a harvesting part in all the said threshing part, and injects into the said threshing part formed in the terminal side of the said feeder house the harvesting grain stem conveyed through the feeder house from the said harvesting part,
A hydraulic oil tank is arranged in a space surrounded by the feeder house and the threshing device,
The hydraulic oil tank is disposed on the side of the engine,
A combine characterized in that the oil supply port of the hydraulic oil tank is arranged outside the machine of the hydraulic oil tank. The method of claim 1,
The oil supply port is a combine, characterized in that disposed above the upper surface of the hydraulic oil tank. 3. The method of claim 2,
The said oil supply port has been arrange|positioned inside the body of the threshing cover formed in the machine outer side of the said threshing part, The combine characterized by the above-mentioned. 4. The method of claim 3,
The combine, characterized in that the threshing cover is configured to be detachable freely. The method of claim 1,
On one side in the body width direction of the engine, a radiator and a cooling fan for blowing air toward the other side in the body width direction are formed,
In a plan view, the radiator, the cooling fan, the engine, and a portion of each of the hydraulic oil tank are arranged side by side so as to overlap in the front-rear direction of the aircraft.

Images