JPH0748032Y2 - Combine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a combine in which a mowing unit is provided in front of the threshing unit and a driver's cab is arranged on the side of the mowing unit.

"Prior art" Conventionally, as shown in Japanese Utility Model Laid-Open No. 60-68942, a mowing unit is provided in front of the threshing unit, and a driver's cab is mounted on the right side of the mowing unit.
The left side of the support on the left side of the reaping section is horizontally rotatably attached by a horizontal rotation fulcrum shaft, and the right side of the support is disengaged via a rotatable lock arm in the opening of the cradle on the right front side of the threshing section. There is a technology in which a guide part is formed on the lock arm that allows the lock arm to be freely fixed and engages the lock arm by the operation of connecting the support to the pedestal, and the reaping part is horizontally rotatably mounted to the outside of the left machine. It was

[Problems to be Solved by the Invention] In the prior art, since the opening of the pedestal is opened obliquely upward and forward, when the lock arm is disengaged, the support is lifted upward and moved forward. Must be,
The operation on the right side of the mowing part in contact with the driver's cab is troublesome, and the operation force for detaching the support from the cradle cannot be easily reduced, and also when the support is engaged with the opening of the cradle. There is a problem that it is necessary to lift the reaper and move it backwards, which makes it difficult to horizontally rotate the reaper and reduce the force for engaging and disengaging the support.

[Means for Solving the Problems] Therefore, according to the present invention, the cutting section is provided in front of the threshing section, the driver's cab is attached to the right side of the cutting section, and the left side of the support body on the left rear side of the cutting section is horizontally pivoted. Horizontally rotatably attached by means of a lock arm that is rotatable in the opening of the cradle on the right front side of the threshing unit, and the right side of the support body is detachably fixed.
Further, in a combine in which a guide part for engaging the lock arm by the operation of connecting the support to the cradle is formed in the lock arm, a spring is provided which constantly presses the lock arm in a direction of separating the support from the cradle. In addition, a lock lever is provided on the pedestal, which is detachably connected to the lock arm to fix the lock arm at the support body engaging position.
A spring for engaging and holding the lock lever with the lock arm is attached, and the lower opening edge of the opening of the pedestal is formed lower than the lower surface of the support body fixing portion of the opening, and the opening is opened obliquely forward and downward. It is characterized by having done.

[Operation] Therefore, the spring force acts on the lock arm in the direction of pushing the support body out of the opening due to the detaching operation of the lock lever, so that the horizontal rotation operating force of the cutting unit for ejecting the support body out of the opening portion can be easily reduced. In addition, since the opening of the pedestal is opened toward the front obliquely downward, it is possible to easily reduce the engagement / disengagement resistance of the support right side portion and the opening that are easily deformed downward due to the weight of the mowing unit body, The mowing unit can be easily rotated horizontally from either the right side of the mowing unit that is in contact with the driver's cab or the left side of the mowing unit near the horizontal rotation fulcrum shaft, and the maintenance workability can be improved by rotating the mowing unit horizontally. It is possible.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a main part, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine, where (1) is a track frame equipped with a traveling crawler (2), 3) is a machine frame installed on the track frame (1), (4) is a threshing section in which a feed chain (5) is stretched on the left side and a handling cylinder (6) and a processing cylinder (7) are built in, (8) is a mowing section provided with a cutting blade (9), a grain transfer mechanism (10), etc., (11) is a hydraulic cylinder for moving the mowing section (8) up and down via a lifting fulcrum cylinder shaft (12), (13 ) Is a straw cutter that faces the end of the straw chain (14), (15) is a grain tank that carries the grain from the threshing section (4) through a lifting cylinder (16), and (17) is the tank Discharge auger to carry the grain of (15) out of the machine, (18)
Is a driver's cab provided with a driver operation section (19) and a driver's seat (20),
(21) is an engine provided below the driver's seat (20), and is configured to continuously cut the grain culms and thresh.

Further, the steering side clutch lever (22) is provided on the front column (23), and the traveling speed change lever (24), the auxiliary speed change lever (25), the reaping clutch lever (26) and the threshing clutch lever (27) are provided on the side. Installed in column (28).
Incidentally, (29) in FIG. 4 is a lever for operating the cutter (13), and (30) in FIG. 6 is a lever for adjusting the leakage of the sorting chaff sheave of the threshing unit (4).

Further, as shown in FIGS. 1 and 4 to 7, left and right mounts (31) and (32) are erected and fixed on the machine stand (3) in front of the threshing unit (4), and the left mount (31) ) On the horizontal pivot shaft (33)
The left pedestal (34) is provided rotatably around this axis in the horizontal direction via the, and the right pedestal (35) is fixedly mounted on the right pedestal (32).

Then, the left end of the elevating and lowering fulcrum cylinder shaft (12), which is a support for the reaper (8), is rotatably supported by the left pedestal (34), and the front opening (36) is opened at the front side. ) Is formed on the right pedestal (35), and the tubular shaft support (12) is fitted into the opening (36) from the front side. The cutting frame pipe (37) is integrated with the tubular shaft (12). It is installed in series and the cutting part (8) is equipped on the tip side of the pipe (37).
4) Mount the mowing part (8) so as to be able to move up and down through the (35) and the cylinder shaft (12).

Further, the right pedestal (35) is provided with a lock arm (38) which is a lock member for rotatably locking the right side portion of the cylindrical shaft (12), and the right pedestal (35) is provided via the support shaft (39). ) Swingably supports the lock arm (38), and locks the U-shaped bifurcated short and long protrusions (40) (41) that engage the cylindrical shaft (12) from below. It is formed integrally with the arm (38), and when the cylinder shaft (12) is taken out from the opening (36) of the pedestal (35), the opening (36) is shown as a phantom line in FIG.
The long protrusion (41) moves to the front side, and the cylinder shaft (12) to be engaged with the opening (36) comes into contact with the long protrusion (41), so that the cylinder shaft (12)
The long protrusion (41) stood up in the position of the solid line in conjunction with the engagement of
Abut the short protrusion (40) on the front side of the cylinder shaft (12) and
The cylinder shaft (12) is automatically locked and supported by the lock arm (38) on the pedestal (35) in conjunction with the operation of connecting the cylinder shaft (12) to the 5).

Further, the lock lever (42) is integrally provided with the lever base plate (43), and the right base (35) is connected to the base plate (4) via the support shaft (44).
3) swingably supports the lock shaft (12) and the pedestal (35) while the lock arm (38) and the base plate (43) are engaged with each other by the engaging portions (45) ( Spring through (46) (47)
The lock lever (42) is erected inside the side column (28) near the driver's seat (20), and the lock lever (42) is tilted forward for release operation. Drive from the driver's seat (20) and horizontally move the mowing part (8) to the outside of the machine around the fulcrum shaft (33) to drive the engine (21) on the front side of the threshing part (4) and the side column (28) lower side. The system is configured to be maintained.

As is clear from the above, the mowing part (8) is provided in front of the threshing part (4), the driver's cab (18) can be taken out on the right side of the mowing part (8), and the support on the left rear part of the mowing part (8). The left side of the lifting fulcrum cylinder shaft (12) is horizontally rotatably attached by the horizontal rotation fulcrum shaft (33), and is freely rotatable in the opening (36) of the right pedestal (35) on the right front side of the threshing unit (4). Lock arm (38)
The right side of the cylinder shaft (12) is detachably fixed via
Further, in the combine in which the lock arm (38) is formed with a protrusion (41) which is a guide portion for engaging the lock arm (38) by an operation of connecting the cylinder shaft (12) to the right cradle (35), A spring (47) that constantly represses the lock arm (38) in the direction that separates the shaft (12) from the pedestal (35).
The right pedestal (35) is provided with a lock lever (42) which is detachably connected to the lock arm (38) and fixes the lock arm (38) at the cylinder shaft (12) engaging position. Attach the spring (48) that holds the lever (42) in engagement with the lock arm (38), and open the right pedestal (35) opening (36).
The lower opening edge of the lock lever (42) is formed lower than the lower surface of the cylindrical portion (12) fixing portion of the opening (36), and the opening (36) is opened obliquely forward and downward. The spring force (47) acts on the lock arm (38) in the direction to push the cylinder shaft (12) through the opening (36), and the cylinder shaft (12) is liable to be deformed downward due to the weight of the cutting unit (8). ) It is configured to reduce engagement resistance between the right side portion and the opening (36).

Further, the battery (50) is mounted on the machine base (3) between the left and right mounts (31) (32) via the tray (49), and the top cover (51) is installed above the battery (50). The cover (51) is fixed to the gantry (31) (32), and the battery (50) is moved in and out of the tray (49) through the gate-shaped space of the left gantry (31).

Further, the cutting input pulley (5
2) is provided, the pulley (52) is pivotally supported by the mowing input 1 shaft (53) inside the cylindrical shaft (12), and the mowing input 2 shaft (54) to be inserted into the mowing frame pipe (37) is provided with the above-mentioned 1 The shaft (53) is interlocked and connected so that the driving force is transmitted to each cutting unit.

Further, as shown in FIG. 8 and FIG. 9, a traveling mission (55) for driving the traveling crawler (2) is provided, a continuously variable hydraulic transmission (56) is provided above the transmission (55), and the transmission (56 ) Running input pulley (57) is connected to the output pulley (58) of the engine (21) via the running clutch tension roller (59) and belts (60) (60), and the PTO output pulley of the mission (55). The cutting input pulley (52) is connected to the (61) via the cutting clutch tension roller (62) and the belt (63), and the traveling speed and the cutting driving speed are synchronized and changed by the transmission (56) control. ,
A tension arm (64) that pivotally supports the roller (62) is pivotally supported on the right frame (32), and the arm (64) is connected to the reaping clutch lever (26) via a wire (65). .

Further, the threshing input pulley (6) is connected to the output pulley (58) via the threshing clutch tension roller (66) and the belt (67).
8) while connecting the auger input pulley (71) to the output pulley (58) via the belt (69) and the tension roller (70), and connecting the auger clutch (72) to the bottom of the tank (15). A pulley (71) is connected to the discharge auger (73), and the discharge auger (15) (73) is driven by the pulley (71) to take out the grains of the tank (15). Two pieces made of triangular sheet metal. Pile the flat plates of the tension arm (7
4) is formed, one end of the triangle of the arm (74) is pivotally supported by the pulley shaft (75) of the pulley (71), and the tension roller (70) is pivotally supported by the other corner of the arm (74). 7
The tension spring (76) is connected to the remaining apex angle of 4).

Further, the mounting plate (78) is bolted (79) to the engine block of the engine (21) through the support cylinder (77) so as to straddle the flywheel (76) integrally fixed to the output pulley (58).
Stop and fix the inner belt retainer (80) to the mounting plate (78)
And the outer belt retainer (81) to the inner belt retainer (80).
It is configured to prevent the belts (60) (67) from coming off the output pulley (58) by 1).

"Effects of the Invention" As is apparent from the above embodiments, the present invention is based on the threshing unit (4).
A mounting part (8) is provided in the front, a driver's cab (18) is mounted on the right side of the mowing part (8), and the left side of the support body (12) on the left rear side of the mowing part (8) is horizontally rotated. ), So that the right side of the support body (12) can be engaged and disengaged via the rotatable lock arm (38) in the opening (36) of the cradle (35) on the right front side of the threshing unit (4). In the combine, wherein the lock arm (38) is provided with a guide portion (41) for freely locking and engaging the lock arm (38) by the operation of connecting the support body (12) to the pedestal (35), The lock arm (38) is provided with a spring (47) that constantly represses the lock arm (38) in a direction in which the support body (12) is separated from the cradle (35), and is also detachably connected to the lock arm (38). ) Is provided on the pedestal (35), and the lock lever (42) is fixed to the support (12) engaging position. A spring (48) for engaging and holding the lever (42) with the lock arm (38) is mounted, and the lower opening edge of the opening (36) of the pedestal (35) is attached to the support (12) of the opening (36). Formed lower than the bottom surface of the fixed part,
The opening (36) is opened obliquely downward to the front, and the lock arm (38) is pushed in the direction in which the support body (12) is pushed out from the opening (36) by the releasing operation of the lock lever (42). Since the force of the spring (47) acts on the cutting part (8), the horizontal rotation operation force for escaping the support (12) from the opening (36) can be easily reduced, and the opening of the pedestal (35) can be easily reduced. Since the (36) is opened obliquely downward to the front, the engagement / disengagement resistance between the right side of the support (12) and the opening (36), which are easily deformed downward due to the weight of the mowing part (8), can be easily reduced. ,
The mowing part (8) which is in contact with the cab (18) can be easily rotated horizontally from either the right side or the left side of the mowing part (8) close to the horizontal rotation fulcrum shaft (33). Therefore, it is possible to easily improve maintenance workability by performing horizontal rotation of the reaper (8).

[Brief description of drawings]

FIG. 1 is an explanatory side view of a main part, FIG. 2 is an overall side view, and FIG.
The figure is the same plan view, FIG. 4 is the side view of the driver's cab, FIG. 5 is the same plan view, FIG. 6 is the same front view, FIG. 7 is a partial side view, and FIG.
The figure is a side view of the drive unit, and FIG. 9 is a plan view of the same. (8) ... Mowing section (12) ... Lifting fulcrum cylinder shaft (support) (33) ... Horizontal rotation fulcrum shaft (35) ... Cradle (38) ... Lock arm (lock member)

Claims (1)

[Scope of utility model registration request] 1. A cutting section (8) is provided in front of the threshing section (4),
The driver's cab (18) is attached to the right side of the mowing section (8), and the left side of the support body (12) at the rear of the left side of the mowing section (8) is horizontally rotatably attached by the horizontal rotation fulcrum shaft (33) to the threshing section. (4) The right side of the support body (12) is detachably fixed to the opening (36) of the cradle (35) on the right front side through a rotatable lock arm (38), and the cradle (35) ), The guide (41) for engaging the lock arm (38) by the operation of connecting the support (12) to the lock arm (38) is formed on the support (12). ) Is provided with a spring (47) for constantly repressing the lock arm (38), and the lock arm (38) is detachably connected so that the lock arm (38) engages with the support body (12). The lock lever (42) to be fixed to the A spring (48) that engages and holds the (38) is attached, and the lower opening edge of the opening (36) of the pedestal (35) is formed lower than the lower surface of the support (12) fixing portion of the opening (36). The combine is characterized in that the opening (36) is opened obliquely downward and forward.