JPH11266606A - Common-type combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compactly mount an operation interlocking mechanism into a machine body by interlocking the traveling speed changing operation with the turning operation of the machine body. SOLUTION: This common-type combine is provided with a hydraulic stepless speed change mechanism for traveling and a hydraulic stepless speed change mechanism for turning and the machine body is turned by relatively changing the driving speeds of the right and left traveling crawlers by the stepless speed changing output for turning. The combine is provided with a traveling and turning operation interlocking mechanism 73 to link a traveling speed changing operation member 15 to operate the hydraulic stepless speed change mechanism for traveling with a turning operation member 15 to operate the hydraulic stepless speed change mechanism for turning. An interlocking mechanism 73 is placed under a driver's stand 16 having a driver's seat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conventional combine harvester in which cereals such as rice, wheat, beans, etc., harvested in a reaping unit, are all fed into a threshing unit via a feeder house and threshed.

[0002]

Conventionally, in a structure having two hydraulic continuously variable transmission mechanisms for traveling and turning, a continuously variable transmission output for traveling and a continuously variable transmission output for turning are provided. A steering mechanism for inputting to a planetary gear mechanism constituting a differential mechanism and changing the driving speed of the left and right traveling crawlers relatively steplessly in accordance with the stepless speed change output for turning to turn the aircraft. In addition, the operation interlocking mechanism between the steering wheel and the traveling shift lever that matches the operating direction of the steering handle and the turning direction of the aircraft during forward and reverse travels is extremely structurally complex and easy to install inside the aircraft. In addition to the inability to assemble the device, there is a disadvantage that it is not easy to perform adjustment and maintenance work.

Further, the threshing unit has a left and right threshing cover that covers the drive system such as pulleys and belts on the left and right outer sides, and it is troublesome to remove the threshing cover each time the maintenance of the drive system is performed. Was.

Further, various hydraulic devices, such as a switching valve of a hydraulic lifting cylinder for raising and lowering the mowing unit and a switching valve of a horizontal cylinder for controlling the body level, are structured so as to be distributed and disposed in the vicinity of the mating cylinder to be connected. However, the efficiency of maintenance and inspection of these hydraulic devices was poor.

Further, since the threshing unit, the engine unit, and the grain tank are provided independently and in a plane, the configuration becomes large and complicated, and the installation structure of related devices associated therewith is also complicated. There were inconveniences such as.

Further, in a structure in which a third exit and a transmission mission case are provided at a lower position on the rear side of the threshing unit, the third exit and the transmission case are brought into contact with obstacles in the field when the aircraft is moving backward. There were inconveniences such as damage.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention comprises a traveling hydraulic continuously variable transmission mechanism and a turning hydraulic continuously variable transmission mechanism, and drives the left and right traveling crawlers with a continuously variable output for turning. In a normal type combine that turns the aircraft by changing the speed relatively, the traveling speed change operation member that operates the hydraulic hydraulic continuously variable transmission mechanism and the turning operation member that operates the rotation continuously variable transmission mechanism are linked. Equipped with a traveling and turning operation interlocking mechanism to be connected, an interlocking mechanism is arranged under the cab having a driver's seat, and the interlocking mechanism is compactly incorporated in excess space below the cab, simplifying the body structure It is intended to achieve good holding without causing damage to the interlocking mechanism and the interlocking mechanism.

Further, the traveling and turning interlocking mechanism is disposed in a substantially planar shape along the lower surface of the cab, and the interlocking mechanism is incorporated into the lower surface of the cab in a flat shape, thereby further simplifying the structure of the body and operating. This is to achieve good holding of the interlocking mechanism on the underside of the platform.

Further, a turning operation system of a turning operation member is provided substantially at the center of the lower surface of the cab, a running operation system of a traveling speed change operating member is provided on both left and right sides of the lower surface of the cab, and an interlocking operation system of these running and turning operation outputs. Are arranged so that the turning and interlocking operation systems can be integrated in a well-balanced and compact manner on both left and right sides of the lower surface of the cab centering on the traveling output operation system.

Further, a deceleration operation system for reducing the traveling speed in accordance with the amount of turning operation is provided between the turning operation system and the traveling and turning interlocking operation system, and the deceleration operation system is compactly incorporated on the lower surface of the cab. This enables stable and favorable turning of the body.

A traveling and turning operation interlocking mechanism is provided integrally with the cab so as to be rotatable in a vertical direction, and the traveling and turning interlocking mechanism is turned upward integrally with the cab and opened to the outside. It is intended to facilitate adjustment and maintenance of the interlocking mechanism and maintain stable operation accuracy.

[0012] Further, the hydraulic continuously variable transmission mechanism for traveling and turning at the rear part of the fuselage and the traveling and turning operation interlocking mechanism at the lower side of the cab are interlocked and connected via a wire. Compared to this, the present invention excels in flexibility without being restricted by the installation position, and makes the structure compact and enables accurate and reliable operation.

Further, left and right threshing covers on the left and right outer sides of the threshing section are provided so as to be openable upward about the upper fulcrum shaft,
Without having to take out the left and right threshing covers each time,
It is easily opened to stably maintain threshing performance.

[0014] In a conventional type combiner in which a mowing unit is installed in front of the threshing unit via a feeder house so as to be able to move up and down, various hydraulic devices for raising and lowering the mowing unit are concentrated and arranged at the right side of the feeder house. Accordingly, various hydraulic devices are compactly incorporated in the extra space on the right side of the feeder house, and the efficiency of the maintenance and inspection work is improved to stably maintain the performance of these hydraulic devices.

Further, an engine is arranged above the rear side of the threshing section, and a vertical discharge auger for taking out the grain in the tank is arranged on the right outside of the grain tank in front of the engine. In addition to the simple installation of the grain tank and the engine unit integrated in the upper side, the vertical discharge auger can be installed compactly without adversely affecting the engine and the threshing unit.

Still further, an engine fuel tank is disposed on the right outside of the threshing section and below the engine so that even a large-capacity fuel tank may adversely affect the threshing section, the grain tank and the engine or take up space. It can be installed compactly without any.

Further, a rear guard frame is provided at the threshing opening portion behind the mission case at the rear side of the threshing portion, and even if there is an obstacle in the reverse field when the aircraft is moving backward,
The guard frame avoids the inconvenience of the transmission case or the like coming into direct contact with obstacles, thereby preventing damage to the third opening of the threshing unit and the transmission case.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 1 is an overall side view of the combine, Fig. 2
Is a plan view of the same, in which (1) is a machine base equipped with a traveling crawler (2) on a track frame (3), and (4) is a large diameter and a small diameter 2 whose axes are orthogonal to the traveling direction of the body. A threshing unit provided with two screw-shaped first and second handling cylinders (5) and (6) and an oscillating sorter (7) as a sorting unit, and (8) is provided above the rear of the threshing unit (4). A grain tank for storing the grains of the threshing unit (4) which is taken out via the fryer cylinder (9), (1
0) is an upper carry-out auger for taking out grains in the grain tank (8), (11) is an engine room provided behind the grain tank (8) and having an engine (12) inside, and (13) is a driver's seat. (14) and a steering handle (1
5) etc. are provided in the driver's cab (16) and are disposed above the front of the threshing unit (4), and (17) is the driver's cab (16)
Left and right workers step on and off,
Reference numeral (18) denotes a mowing unit which is provided at the lower front of the threshing unit (4) via a hydraulic elevating cylinder (19) so as to be able to move up and down.

The cutting section (18) is connected to a grain cutting header (20) for taking in uncut grain culm and substantially at the center of the rear part of the header (20) to cut the cut grain culm into a threshing section (4). And a feeder house (21) for feeding to the cereal, and a reel (22) for scraping uncut stalks, a reciprocating drive type cutting blade (23), and stalk stalk o (24). The feeder house (21) is provided on a header (20), and is disposed below the driver's cab (16) so as to be displaced to the left from the driver's seat (14) in the center of the driver's cab (16). The harvested culm taken into the feeder house (21) is fed to the left side of the threshing unit (4) via a supply chain conveyor (25) provided in the feeder house (21) to perform threshing.

As shown in FIG. 4, a transmission case (26) for driving the traveling crawler (2) is a traveling hydraulic type comprising a pair of hydraulic transmission pumps (27) and a hydraulic transmission motor (28). A continuously variable transmission mechanism (32) for turning comprising a pair of hydraulic steering pumps (30) and a hydraulic steering motor (31);
The driving force of the output shaft (12a) of the engine (12) is linked to the input shaft (33) of the shift and steering pumps (27) and (30) via a transmission belt (34). ) (30).

An auxiliary transmission mechanism (36) and a forced differential mechanism (3) are connected to the output shaft (35) of the transmission motor (28).
7), the driving wheels (38) and (38) of the left and right traveling crawlers (2) and (2) are interlocked and connected, and the differential mechanism (37) is a pair of left and right symmetric planetary gear mechanisms (39).
(39), wherein the planetary gear mechanism (39) meshes with one sun gear (40) on the outer periphery of the sun gear (40).
Are formed by two planetary gears (41) and a ring gear (42) meshing with each planetary gear (41).

Further, each of the planetary gears (41) ...
Is a carrier shaft (4) coaxial with the sun gear shaft (43).
The carrier (45) is rotatably supported by the carrier (4), and the left and right carriers (45) are opposed to each other with the left and right sun gears (40) and (40) interposed therebetween. The ring gear (42) is connected to each planetary gear ( 41) has internal teeth (42a) meshing therewith, and is rotatably supported by a carrier shaft (44) on the same axis as the sun gear shaft (43).

Further, the traveling hydraulic continuously variable transmission mechanism (29) controls the forward / reverse rotation and the rotation speed of the transmission motor (28) by adjusting the angle of the rotary swash plate of the transmission pump (27). The rotation output of the transmission motor (28) is transmitted from the transmission gear (46) of the output shaft (35) to each gear (47).
(48) Through the (49) and the auxiliary transmission mechanism (36), the sun gear (40) is configured to rotate by transmitting to a center gear (50) fixed to the sun gear shaft (43). The subtransmission mechanism (36) includes a subtransmission shaft (51) having the gear (49), and a parking brake shaft (53) having a gear (52) meshing with the center gear (50),
A low-speed gear (54) (52), a medium-speed gear (55) (56), and a high-speed gear (57) (58) are provided between the sub-transmission shaft (51) and the brake shaft (53). The sub-transmission is switched between low speed, medium speed and high speed by sliding operation of the slider (55a) of the sub-transmission switching gear (55). A neutral zone is provided between the low speed and the medium speed and between the medium speed and the high speed. The parking brake shaft (53) is provided with a vehicle speed detection gear (59) and a vehicle speed sensor (60) for detecting the vehicle speed based on the number of revolutions of the gear (59), and transmits a torque to the reaping unit (18). Harvest P
The transmission gear (46) of the output shaft (35) is meshed with the PTO input gear (62) of the TO shaft (61).

The driving force from the transmission motor (28) transmitted to the sun gear shaft (43) via the center gear (50) is transmitted to the left and right carrier shafts (39) via the left and right planetary gear mechanisms (39) and (39). 44) and (44), and the rotational output transmitted to each carrier shaft (44) (44) is reduced by one pair of left and right sets of reduction gears (63) (64) and (6).
3) The transmission is transmitted to the axles (38a) (38a) of the left and right drive wheels (38) (38) via the (64).

The hydraulic stepless speed change mechanism for turning (3)
2) performs switching between forward and reverse rotation of the steering motor (31) and control of the number of rotations by adjusting the angle of the rotary swash plate of the steering pump (30). 65)
From the output gear (66) via the gear transmission mechanism (67) to the revolving gear (69a) of the revolving shaft (68), which is the final output shaft.
(69b) to the right ring gear (4).
The right turning gear (69a) meshes with the external teeth (42b) of (2), and the external teeth (42) of the left ring gear (42).
b) is connected to the left turning gear (69b) via the reversing gear (71) of the reversing shaft (70), so that the left and right ring gears (42) and (42) rotate the same left and right when the steering motor (31) rotates forward. The number of rotations is such that the left ring gear (42) rotates forward and the right ring gear (42) rotates reversely.

When the driving of the traveling steering motor (28) is stopped while the driving of the turning steering motor (31) is stopped and the left and right ring gears (42) are stationary, the speed change is performed. The rotation output from the motor (28) is transmitted from the center gear (50) to the left and right sun gears (40) at the same speed, and the planetary gear (41), the carrier (45) and the reduction gear (63) of the left and right planetary gear mechanism (39). )
The transmission is transmitted to the left and right axles (38a) and (38a) at the same rotational direction and the same rotational speed via (64), so that the aircraft travels in the front-rear direction. On the other hand, the traveling speed change motor (2
8) to stop, and left and right sun gears (40) (40)
The steering motor for turning (31) is fixed in a stationary state.
, The left and right planetary gear mechanisms (39) rotate forward or backward, and the right planetary gear mechanism (39) rotates reversely or forward to rotate one of the left and right traveling crawlers (2) and (2). Rotate the aircraft forward or backward and spin the aircraft left or right on the spot,
It is configured to change directions at a headland on a field.

If the turning steering motor (31) is driven while the traveling speed change motor (28) is driven, a difference occurs in the driving speeds of the left and right traveling crawlers (2) and (2), causing a large turning. The traveling direction is corrected by turning the radius, and the turning radius is changed to the left and right traveling crawlers.
It is configured to be determined according to the speed difference.

As shown in FIGS. 5 to 13, a main transmission lever (72), which is a traveling speed change operation member connected to the traveling hydraulic continuously variable transmission mechanism (29), and a turning hydraulic continuously variable transmission. The steering handle (15) connected to the mechanism (32) is operatively connected to the traveling and turning operation interlocking mechanism (73), and the interlocking mechanism (73) is connected to the push-pull type traveling speed change and turning wire (74) ( 75) and the control levers (76) and (77) of the continuously variable transmission mechanisms (29) and (32) for running and turning.

The operation interlocking mechanism (73) includes a turning operation system (73a) of the steering handle (15) and a main shift lever (7).
2) The traveling operation system (73b) and these operation systems (73b)
a) an interlocking operation system (73c) for connecting the (73b), and an operation interlocking mechanism (73) is disposed below the cab (16) along the lower surface (16a) in a planar manner. ,
A turning operation system (73a) is provided substantially at the center of the lower surface (16a) of the cab (16), a traveling operation system (73b) is provided on the left side of the lower surface (16a), and an interlocking operation system (73c) is provided on the right side of the lower surface (16a). ) Are arranged, and the interlocking operation system (73
The running and steering shift operation output from c) is transmitted to the wire (74)
Continuously variable transmission mechanism for traveling and turning via (75) (29)
(32).

The interlocking operation system (73c) includes a cab (1
6) A link mounting member (78) fixed to the fixing plate (77) on the lower surface (16a) and a first vertical shaft (79) supported on the front end of the mounting member (78) in the proximal cylindrical shaft (79). A second pivot (81) in the front-rear direction perpendicular to the first pivot (79) and a base end rotatably connected around the axis of the second pivot (81). A swing arm (85) having a base end fixed to a third vertical pivot (84) supported on the rear end of the mounting body (78); A swivel arm (87) having a base fixed to the rotating cylinder shaft (86) outside the third pivot (84).
And the second pivot (8) of the swing link (82) (83).
1) is a swivel and variable speed universal joint shaft (90) (91) connecting between the output shafts (88) (89) of the operation output portions (82a) (83a) at the eccentric position and each arm (87) (85).
A transmission output arm (92) fixedly mounted on the right end of the third pivot (84); and a substantially L fixedly mounted on the second pivot (81).
And a pivoting and shifting rod (94) (95) from the pivoting and traveling operation system (73a) (73b). The front end of the pivoting joint shaft (90) and the mounting bracket (93) are provided. ), And a wire (75) is connected to the turning and shifting output arm (87) (92).
(74), and the rotation (α1) of the transmission rocking link (83) in the front-rear direction about the first pivot (79).
Control lever (76) for traveling by (α2)
And the steering control lever (77) is operated by the left and right rotations (β1) and (β2) of the swing rocking link (82) about the second pivot (81) during running. The gearshift and the steering control are performed.

The main shift lever (72) is connected to the driver's seat (1).
4) The lever (72) is provided on an operation column (96) standing upright from the driver's cab (16) at the left front side, and the upper end of the lever (72) is bent toward the driver's seat (14) to be close to the driver's seat (14). Section (72a) has a mowing elevating switch (97) and the like,
The lever (7) is connected to the inside of the upper part of the operation column (96) via a pivot (98) and a lever plate (99) and a cylinder shaft (100).
The base end of 2) can be attached rotatably in the front-back and left-right directions, and the intermediate shaft (101) below the column (96).
First swing arm (103) of the cylinder shaft (102) supported on the shaft
And a lever plate (9) via a vertical rod (104).
9) and the mounting bracket (93) is connected to the second swing arm (105) of the cylindrical shaft (102) via the rod (95) in an interlocking manner, so that the driver's cab (16) is operated at the left position. The rotational operation output of the main shift lever (72) in the front-rear direction about the pivot (98) is transmitted as a shift output to the interlocking operation system (73c) on the left side of the cab (16). . (106) is the lever (7
2) A leaf spring for urging the lever (72) rightward, and (107) a stopper bolt for regulating the rightward movement position of the lever (72).

On the other hand, in the turning operation system (73a), a gear (109) is provided on a turning operation shaft (108) at the lower end of the steering handle (15), and a sector gear (111) is attached to the rear rotation shaft (110). And an output arm (112) integrally connected to the sector gear (111) is connected to a front end of a swivel joint shaft (90) via a swivel rod (94), and a steering handle ( The turning operation output of (15) is transmitted to the interlocking operation system (73c) as a turning output, and the turning swing link (82) is turned around the second pivot (81).

Further, a neutral positioning plate (113) is provided below the gear (109) of the turning operation shaft (108), and a protruding shaft (114) on the lower surface of the positioning plate (113) is provided with a steering detection link (115). A first swing arm (117) of a deceleration arm shaft (116) which is a deceleration operation system having one end connected thereto and disposed between the turning and interlocking operation systems (73a) (73c).
And the other end of the detection link (115) are connected via a shaft (118), and the second swing arm (119) of the reduction arm shaft (116) and the speed change swing link (83) are a universal joint type. When the steering operation amount of the handle (15) is increased in the traveling state, the deceleration rod (120) is pulled to the left, and the traveling speed is increased in proportion to the steering operation amount. It is configured to decelerate.

Incidentally, (121) is a neutral detection link (12
A turning neutral sensor for detecting the neutral position of the positioning plate (113) via 2) or the like.

As shown in FIG. 14, the swing of the universal joint shafts (90) and (91) and the shifting arms (87) (8)
5) and the joints (90a) and (91a) are arranged so as to be substantially aligned on the front-rear extension horizontal line (L1) of the second pivot (81). Joints (90b) (91) with output shafts (88) (89)
b) and a joint (120a) of the deceleration rod (120) with the oscillating link (83) is connected to the vertical line (L) of the first pivot (79) perpendicular to the horizontal line (L1).
2) When the steering handle (15) and the main speed change lever (72) are held at the neutral position when the steering handle (15) and the main shift lever (72) are in the neutral position, the swing link is operated by operating either the handle (15) or the lever (72). Even if (82) and (83) are swung, the links (82) and (83) are connected to the second and first pivots (81) and (7).
9) The joint shafts (90) and (91) are simply turned around.
Is configured not to transmit the turning and shifting operation outputs.

As shown in FIGS. 12 and 13, the speed change and turning wires (74) and (75) are provided with a threshing unit (4), a rear transmission case (26) and a left threshing plate (4a) at the left position.
The other end faces the wire receiver (123) fixed to the outside, and the left end of the outer shaft (124) and the inner shaft (125) of the double shaft structure that traverses in the left-right direction above the transmission case (26). The other ends of the wires (74) and (75) are connected via the swing arms (126) and (127), and the outer shaft (12) is connected.
4) and a fixed arm (12) on the right end side of the inner shaft (125).
8) The (129) is linked to the control levers (76) (77) of the continuously variable transmission mechanism (29) (32) for traveling and turning via the rods (130) (131), and the main transmission lever ( 72) and the steering wheel (15) is used to change the traveling speed and to turn the aircraft.

As shown in FIG. 15, the driver's cab (16) is divided into a central movable base (16A) and a fixed frame base (16B) around the movable base (16A).
A driving operation unit (13) is provided on an upper surface of the movable base (16A), and an interlocking mechanism (73) is provided on a lower surface of the movable base (16A).
When the rear end side of the movable base (16A) is rotated upward about the fulcrum shaft (132), the interlocking mechanism (73) on the lower surface of the movable base (16A) is opened. Thus, the adjustment of the interlocking mechanism (73) and the maintenance and inspection work are facilitated.

Then, as shown in FIG. 11 and FIG. 14, the main shift lever (72) is operated forward and backward, and the swing link (83) is moved forward and backward by an angle (α1) about the first pivot (79).
(Α2) When tilting, the joint shaft (91) is pulled or pushed to rotate the transmission arm (85) about the shaft (84), thereby changing the traveling speed and switching between forward and backward traveling, as shown in FIG. With the shift lever (72) being operated to a position other than the neutral position, the steering handle (15) is turned to rotate the swing link (8) about the second pivot (81).
When tilting 2) to the right or left by an angle (β1) or (β2), the joint shaft (90) is pulled or pushed to rotate the turning arm (87) about the shaft (84) to turn the body left and right. Main shifting lever (72)
Even if the turning operation is performed during the neutral time, the joint shaft (90) rotates on a conical surface centered on the line (L1) with the joint (90a) as a fulcrum, and the intersection of the lines (L1) and (L2) The joint (90b) moves on the same circumference as the center,
The distance between the swing output shaft (88) and the swing arm (87) is kept substantially constant, so that the swing arm (87) does not operate. When the turning operation of the handle (19) is performed when the main shift lever (72) is not in the neutral position, the turning arm (87) operates. It operates in the reverse direction and rotates the steering motor (31) in the reverse direction when moving forward and when moving backward.

For example, when the forward rotation of the traveling speed change motor (28) is defined as forward movement, when the reverse rotation is performed, the operation of the planetary gear mechanism (39) by the turning steering motor (31) is performed during forward movement. In order to match the turning direction of the body by operating the handle (15) at the time of forward movement and at the time of reverse movement, the steering pump (30) is operated at the time of reverse rotation (reverse movement) of the speed change motor (28). The swash plate angle is switched in the reverse direction, and the steering motor (31) is configured to rotate in the reverse direction when moving forward and when moving backward.

Further, the swing link (83) at the time of the forward operation is tilted toward the angle (α1) forward of the neutral position, and the handle (1)
The swinging link (82) is tilted to the right angle (β1) side by pushing the turning rod (94) to the right by the right turning operation of 5), so that the output portion (8) of the swing link (82) is rotated.
2a) away from the turning arm (87) side, and a direction in which the joint (91a) with the turning joint shaft (91) approaches the swing link (82) side with the third pivot (84) as the center (FIG. 7). The swing arm (87) is swung in a clockwise direction, and the control lever (7) is rotated via the swing wire (75).
7) is turned downward, and the steering motor (31) for turning is turned.
Is rotated forward. That is, the vehicle is configured to make a forward turn right (the speed of the traveling crawler (2) is large on the left side and small on the right side).

Further, at the time of a forward operation in which the main shift lever (72) is tilted forward, the turning rod (94) is pulled by the left turning operation of the handle (15), and the swing link (82) is turned to the left angle ( By tilting to the β2) side, the output portion (82a) of the swing link (82) is brought closer to the turning arm (87) side, and the joint portion with the turning joint shaft (91) about the third pivot (84). (91a) is swung in the direction (counterclockwise in FIG. 7) away from the swing link (82) side, and the control lever (77) is swung.
Is rotated upward, and the steering motor (31) is reversely rotated. That is, the airframe is configured to make a forward left turn (the speed of the traveling crawler (2) is high on the right side and low on the left side) while traveling forward.

Further, the swinging link (83) is tilted toward the angle (α2) behind the neutral position by the backward operation of tilting the main transmission lever (72) backward, and the turning rod ( 94) to the right to tilt the swing link (82) to the right angle (β1), thereby bringing the output portion (82a) of the swing link (82) closer to the turning arm (87) side. The pivot arm (87) is pivoted about the pivot (84) in a direction (counterclockwise in FIG. 7) in which the joint (91a) with the pivot joint (91) moves away from the pivot link (82). The control lever (77) is turned upward to rotate the steering motor (31).
To reverse rotation. That is, the vehicle is configured to make a right turn in reverse (the speed of the traveling crawler (2) is large on the left side and small on the right side).

When the main shift lever (72) is operated in reverse, the swing link (82) is tilted to the left angle (β2) by turning the handle (19) to the left. The output portion (82a) of (82) is moved away from the turning arm (87), and the joint (91a) with the turning joint shaft (91) is swung about the third pivot (84) by the swing link (82). The control lever (77) is turned downward in a direction (clockwise in FIG. 7) approaching the moving link (82), and the steering motor (31) is turned.
Is rotated forward. That is, the airframe is configured to make a left turn (the speed of the traveling crawler (2) is large on the right side and small on the left side) in reverse.

As described above, the turning arm (87) is rotated in the reverse direction during the forward and backward turning operations, so that the turning operation direction of the steering handle (15) and the turning direction of the body in both the forward and backward directions. Are configured to match.

As shown in FIGS. 16 to 19, the threshing unit (4) is provided with a second handle cylinder (6) at the same axial center height behind the first handle cylinder (5). The first and second handling cylinders (5) and (6) are orthogonal to the grain stalk feeding direction from the feeder house (21), and the grains thrown into the left side of the first handling cylinder (5) from the feeder house (21). The culm is the first handling cylinder (5)
At the right end communication gutter (133) of the first handling drum (5) by the culm blade (134).
The culm is taken over by the handling cylinder (6) and laterally fed to the left, and the culm is discharged backward by the culm blade (136) at the left end of the culm opening (135).

The first and second handling cylinders (5) and (6)
The rocking sorter (7) is provided below, and Karamine (137) and the first and second conveyors (138) (139) are provided below the rocking sorter (7). In the back of the board (7), a third mouth (140), which is a culm mouth, is opened.

Using the left and right threshing side plates (4a) and (4b) constituting the threshing section (4) as support members, a grain tank (8) is provided above the rear side of the threshing section (4), and is provided at the rear of the tank (8). The engine room (11) is integrally formed, and the bottom plate (141) of the grain tank (8) and the bottom plate (142) of the engine room (11) are configured to be used as the rear top plate of the threshing unit (4). I have.

The first handle cylinder cover (143) on the upper part of the first handle cylinder (5) is provided so as to be openable upward around the rear fulcrum shaft (144), and the first handle cylinder cover (143) on the upper part of the second handle cylinder (6). (2) The handling cylinder cover (145) is detachably provided, and the above-mentioned flouring cylinder (9) and the second conveyor (1) are provided outside the left threshing side plate (4a).
A second return cylinder (146) for returning the second product from 39) to the swinging sorter (7), and an engine drive system (147) for driving the first and second handling cylinders (5) and (6). Is arranged. In addition, the bottom discharge auger (1) in the grain tank (8)
48), the vertical discharge auger (14) which passes the grain taken out to the right outside of the tank (8) to the upper discharge auger (10).
9) and the drive system (150) of the first and second conveyors (138) and (139) is disposed outside the right threshing side plate (4b);
The outer sides of the left and right threshing side plates (4a) and (4b) are covered with left and right threshing side covers (151) (152) and (153) (154).

Left and right threshing side cover (151) (152)
(153) and (154) are upper covers (151) and (15)
3) and the lower cover (152) (154)
The left and right lower covers (152) and (154) are detachably provided, and the left and right upper covers (151) and (153) are provided to be openable upward about the upper fulcrum shafts (155) and (156). The system (147) and (150) are configured to easily perform maintenance and inspection.

As shown in FIGS. 17, 20, and 21, a radiator (15) is provided at a left opening of an engine room (11) where a cooling fan (157) of the engine (12) faces.
8), and the outside of the radiator (158) is covered with a radiator cover (159). The radiator cover (159) has an oil cooler (160) attached to the inner surface thereof, and the rear end of the cover (159). A cover (159) is provided freely openable on the right outside centering on the fulcrum shaft (161).

Further, a fuel tank (162) of the engine (12) is disposed outside the right threshing side plate (4b) below the engine (12), and the vertical discharge auger (14) is provided.
9) A hydraulic oil tank (163) for supplying hydraulic oil to the continuously variable transmission mechanisms (29) (32) and the like is provided on the right outside surface of the grain tank (8) ahead of the grain tank (8). ), The grain tank (8) and the engine (12) are arranged in a simple manner without adversely affecting these tanks (162) and (163). In addition, (164) is an air cleaner, and (165) is an exhaust pipe.

Further, the threshing rear cover (166) behind the engine frame (11) is attached to the left fulcrum shaft (1).
67) is provided so as to be freely open to the rear with respect to the center so that maintenance and inspection of the engine (12) can be easily performed.

Further, a rear guard frame (16) is provided behind the transmission case (26) on the rear side of the threshing unit (4).
8) to provide a gate-shaped guard frame (16
8) The lower part of the guard case (168) is fixed to the left and right side plates (4a) and (4b) while the middle portion of the guard case (168) is downwardly inclined toward the rear of the transmission case (26). When there is an obstacle, the mission case (3), the swing sorting board (7), and the third exit (140) are configured to be protected from the obstacle. The connection and disconnection operations and adjustment operations of the shifting and turning wires (74) and (75) with the swinging arms (126) and (127) of the outer shaft (124) and the inner shaft (125) are performed by the threshing left side plate (4a). ) Each rod (130) while allowing it to be more easily
The connection and disconnection operations and the adjustment operation of the (131) and the control levers (76) and (77) are configured to be easily performed by inserting a hand from the rear side of the machine.

On the other hand, as shown in FIGS. 17 and 21, on the right side of the feeder house (21), inside the step (16a) of the cab (16), a battery (169) and the hydraulic lifting cylinder (19) And a hydraulic device (170) such as a switching operation valve of a horizontal control cylinder is centrally disposed, and a battery (16) is provided in an extra space (171) formed between the right side of the feeder house (21) and the lower side of the step (16a).
9) and the hydraulic device (170) are compactly and satisfactorily stored and held, and maintenance and inspection are also facilitated so that their performance is stably maintained.

[0055]

As is apparent from the above embodiments, the present invention comprises a traveling hydraulic continuously variable transmission mechanism (29) and a turning hydraulic continuously variable transmission mechanism (32). A traveling speed change operation member (15) for operating a traveling hydraulic continuously variable transmission mechanism (29) in a normal type combine which turns the body by relatively changing the driving speed of left and right traveling crawlers with output; Driving and turning operation interlocking mechanism (73) for interlocking connection with a turning operation member (15) for operating a continuously variable transmission mechanism (32) for the driver, and a driver's seat (14)
Since the interlocking mechanism (73) is provided below the cab (16) having the following, the interlocking mechanism (73) is compactly incorporated into an extra space below the cab (16),
This makes it possible to simplify the body structure and achieve good holding without causing damage to the interlocking mechanism (73).

Further, since the traveling and turning interlocking mechanism (73) is arranged substantially in a plane along the lower surface of the cab (16), the interlocking mechanism (73) is mounted on the lower surface of the cab (16). The flat structure enables further simplification of the body structure and good holding of the interlocking mechanism (73) below the cab.

Further, a turning operation system (73a) of the turning operation member (15) is provided substantially at the center of the lower surface of the cab (16), and a traveling speed change operation member (7) is provided on both left and right sides of the lower surface of the cab (16).
Since the traveling operation system (73b) of 2) and the interlocking operation system (73c) of these traveling and turning operation outputs are arranged respectively, the lower surface of the cab (16) is centered on the turning operation system (73a). Turning and interlocking operation system (7
3b) and (73c) can be incorporated in a well-balanced and compact manner.

Further, a deceleration operation system (116) for reducing the traveling speed in accordance with the amount of turning operation is provided with a turning operation system (73).
a) and the traveling and turning interlocking operation system (73c), the deceleration operation system (11) is provided on the lower surface of the cab (16).
6) can be incorporated compactly to enable stable and favorable turning of the aircraft.

Since the traveling and turning operation interlocking mechanism (73) is provided so as to be rotatable in the vertical direction integrally with the cab (16A), the traveling and turning interlocking mechanism (73) is connected to the cab (16A). ), Is pivoted upward and opened to the outside to facilitate adjustment of the interlocking mechanism (73), maintenance and inspection, and the like, thereby stably maintaining operation accuracy.

Furthermore, a hydraulic continuously variable transmission mechanism (29) (32) for traveling and turning at the rear of the machine body and a traveling and turning operation interlocking mechanism (73) at the lower side of the cab (16) are connected to a wire (7).
4) Since it is interlockingly connected via (75), it is excellent in the degree of freedom without being restricted by the installation position, and has a compact and accurate structure as compared with the conventional means which is connected by a link or the like. The operation can be made possible.

Further, the threshing unit (4) is provided with the left and right outer threshing covers (151) and (153) on the upper and lower fulcrum shafts (155).
Since it is provided so as to be freely opened upward with the center at (156), the left and right threshing covers (151) and (153) can be easily opened without any trouble of taking out each time and threshing performance can be stably maintained. You can do it.

Further, in a normal combine in which a mowing section (18) is mounted so as to be able to move up and down via a feeder house (21) in front of the threshing section (4), various hydraulic pressures for raising and lowering the mowing section (18) are used. Device (170) is connected to feeder house (2)
1), the various hydraulic devices (170) are compactly installed in the right excess space (171) of the feeder house (21), and the efficiency of maintenance work is improved. Thus, the performance of these hydraulic devices (170) can be stably maintained.

Further, an engine (12) is arranged above the rear side of the threshing unit (4), and the grain in the tank (8) is provided on the right outside of the grain tank (8) in front of the engine (12). Since a vertical discharge auger (149) for taking out is disposed, a grain tank (8) is provided above the rear side of the threshing unit (4).
In addition to the simple installation of the engine unit and the engine unit, the compact installation of the vertical discharge auger (149) without adversely affecting the engine (12) and the threshing unit (4) is enabled. You can do it.

Further, since the fuel tank (162) of the engine (12) is arranged on the right outside of the threshing unit (4) and below the engine (12), for example, a large-capacity fuel tank (162) is provided. ) Can also be installed compactly without affecting the threshing unit (4), the grain tank (8) or the engine (12) or taking up space.

Further, since the rear guard frame (168) is provided at the threshing opening portion behind the mission case (26) at the rear side of the threshing portion (4), obstruction may occur in the field scene in the reverse direction when the fuselage moves backward. Even if there is an object, the guard frame (168) avoids the inconvenience of the mission case (26) or the like coming into direct contact with obstacles, and the third exit (140) of the threshing unit (4) or the mission case (26). )
Can be prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the combine.

FIG. 3 is an overall front view of the combine.

FIG. 4 is an explanatory view of driving a mission case.

FIG. 5 is an explanatory plan view of a traveling and turning interlocking mechanism.

FIG. 6 is an explanatory side view of a main transmission lever.

FIG. 7 is an explanatory plan view of an interlocking operation system.

FIG. 8 is an explanatory side view of the interlocking operation system.

FIG. 9 is an explanatory front view of an interlocking operation system.

FIG. 10 is an explanatory plan view of a main transmission lever.

FIG. 11 is an explanatory plan view of an interlocking operation system.

FIG. 12 is an explanatory diagram of a wire receiving portion.

FIG. 13 is an explanatory diagram of a control lever unit.

FIG. 14 is an explanatory diagram of an interlocking operation system.

FIG. 15 is a diagram for explaining the rotation of the cab.

FIG. 16 is an explanatory sectional view of a threshing unit.

FIG. 17 is an explanatory side view of a threshing unit.

FIG. 18 is a cross-sectional plan view of the threshing unit.

FIG. 19 is an explanatory front view of a first handling body portion.

FIG. 20 is an explanatory plan view of an engine unit.

FIG. 21 is an explanatory rear view of the engine unit.

FIG. 22 is an explanatory front view of a step unit.

[Explanation of symbols]

 (4) Threshing unit (8) Grain tank (12) Engine (14) Driver's seat (15) Steering handle (turning operation member) (16) (16A) Driver's cab (18) Cutting unit (21) Feeder house (26) ) Transmission case (29) Hydraulic continuously variable transmission mechanism for traveling (32) Hydraulic continuously variable transmission mechanism for turning (72) Main transmission lever (traveling operation member) (73) Interlocking mechanism (73a) (73b) (73c) ) Operation system (74) (75) Wire (116) Deceleration arm shaft (deceleration operation system) (149) Vertical discharge auger (151) (153) Cover (155) (156) Support shaft (162) Fuel tank (168) Guard frame (170) Hydraulic device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI A01F 12/00 A01F 12/00 G 12/46 12/46 B60P 3/00 B60P 3/00 M (72) Inventor Satoshi Hirose Yoshi, No. 1-32, Chaya-cho, Kita-ku, Osaka-shi Inside Yanmar Agricultural Machinery Co., Ltd.

Claims (11)

[Claims] 1. An air conditioner comprising a traveling hydraulic continuously variable transmission mechanism and a turning hydraulic continuously variable transmission mechanism, wherein a driving speed of left and right traveling crawlers is relatively changed by a continuously variable transmission output for turning. In a normal type combine that turns, a traveling and turning operation interlocking mechanism that interlocks and connects a traveling shift operation member that operates a hydraulic hydraulic continuously variable transmission mechanism and a turning operation member that operates a continuously variable transmission mechanism for turning. A normal-type combine equipped with an interlocking mechanism provided below a cab having a driver's seat. 2. The driving and turning interlocking mechanism is disposed substantially in a plane along the lower surface of the cab.
The described normal combine. 3. A turning operation system of a turning operation member substantially at the center of the lower surface of the cab, a running operation system of a traveling speed change operating member on both left and right sides of the lower surface of the cab, and an interlocking operation system of these running and turning operation outputs. 2. The normal combine according to claim 1, wherein 4. The ordinary combine according to claim 3, wherein a deceleration operation system for reducing the traveling speed in accordance with the amount of turning operation is provided between the turning operation system and the traveling and turning interlocking operation system. 5. The ordinary combine according to claim 1, wherein a traveling and turning operation interlocking mechanism is provided integrally with the cab so as to be rotatable in a vertical direction. 6. The hydraulic continuously variable transmission mechanism for traveling and turning at the rear of the fuselage and the traveling and turning operation interlocking mechanism at the lower side of the cab are interlocked via a wire.
The described normal combine. 7. A normal combine, wherein left and right threshing covers on the left and right outer sides of the threshing section are provided so as to be openable upward about an upper fulcrum shaft. 8. A normal combine in which a mowing unit is provided so as to be able to move up and down via a feeder house in front of a threshing unit,
Various types of hydraulic devices for raising and lowering the mowing unit are centrally located on the right side of the feeder house. 9. An ordinary engine, comprising: an engine disposed above a rear side of a threshing unit; and a vertical discharge auger for extracting grains in the grain tank disposed outside a grain tank in front of the engine. Shape combine. 10. The normal combine according to claim 9, wherein a fuel tank of the engine is disposed at a position below the engine on the right outside of the threshing section. 11. A normal combine, wherein a rear guard frame is disposed at a threshing opening portion behind a transmission case at a rear side of the threshing portion.