JPH0775427A - Pre-treating device of combine harvester - Google Patents

Abstract

PURPOSE:To facilitate the attachment and detachment of a grassdividing case and reduce projections from the front surface of a raising case by specifying the attaching structure of the grass-dividing case. CONSTITUTION:The set pin 31 of a grass-dividing case 25 is fit into the groove 32 of a bracket 30, and a split collar 51 for fitting the end of a driving case 33 into the receiving member of a raising case 22 is disposed. A pair of half spit collars consisting of the split collar are fit onto the outer periphery of the driving case, and a catching tine is fit into the catching groove of the receiving member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine pretreatment device for slicing and standing up grain culms for each cutting line before cutting grain culms in a field.

[0002]

2. Description of the Related Art Conventionally, a structure in which a weed case for projecting a weeding tine in the traveling direction of the machine body is attached to the front side of the carrying case for projecting the raising tines in the left and right directions of the machine body The bolts are inserted from the side into holes formed in the bracket of the frame, and the upper drive case is bolted or cam-fastened to the front upper part of the pull-up case.

[0003]

In the conventional weed case attachment structure, it is necessary to attach and remove the bolts and to screw in a screw that requires a large amount of force, so that the weed case that is handled as an attachment cannot be removed. There was a problem that it could not be done easily.

[0004]

SUMMARY OF THE INVENTION However, according to the present invention, there is provided a structure in which a grass case for projecting the grass tine in the traveling direction of the machine is attached to the front side of the case for projecting the tine in the lateral direction of the machine. The set pin provided at the lower part of the weed case is fitted into the groove formed in the bracket of the weed frame from above, and the weed case is rotated around the set pin toward the rear of the machine, so that the weed The end of the drive case provided in the upper part of the case is fitted to the receiving part provided in the upper part of the front surface of the raising case, and the weed case is set.
The split case is provided with a split collar for fixing the split case in a set state, and the split collar is opened and closed around a support shaft that rotatably connects one ends of a pair of split collars, and each split collar is attached to the drive case. The locking claw that is fitted from the outer peripheral side and that is formed at one end of each half collar is fitted from the outer peripheral side to the locking groove that is formed on the outer periphery of the receiving portion, and the drive case is pulled out from the receiving portion. As the weed case can be easily attached and detached both up and down, there is little protrusion from the front of the pull-up case even after removing the weed case, and it is possible to prevent the appearance from being spoiled, It can be pulled up smoothly without being caught.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a cross-sectional plan view of the pretreatment unit, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view thereof. In the figure, (1) is a track frame on which a traveling crawler (2) is mounted, (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 cutting blade (9)
And a reaper having a grain culm transport mechanism (10), (1
1) is a hydraulic cylinder that raises and lowers the reaper (8) through the lifting fulcrum cylinder shaft (12), and (13) is a straw chain (14)
The straw processing unit that faces the end, (15) is a grain tank that carries the grain from the threshing unit (4) through the fried barrel (16), and (17) is the grain in the tank (15). A discharge auger carried out to the outside of the machine, (18) a driver's cab provided with a driver operation section (19) and a driver's seat (20), and (21) a driver's seat (2
0) An engine provided below, which is configured to continuously mow grain culms and thresh them.

Further, (22) in the figure is a raising case which is erected and fixed on the front part of the mowing section (8), and is provided with a raising tine (23) projecting in the left and right direction of the machine body and a weeding plate (24). The uncut grain culm that is taken in via the raising tine (23) is erected and retained, and in the figure, (25) is a weed that is an attachment detachably attached to the front side of the raising case (22). In the case, a weeding tine (26) is provided to project in the direction of travel of the machine, and the weeding board (24) and the weeding tine (26) are used to weed a grain culm for each cutting line. Case (22) and divider plate (24)
And the weeding case (25) form a pretreatment unit (27) at the front of the reaper (8).

As shown in FIGS. 1 and 4, there is provided a weeding frame (29) connected to the front end of the mowing frame (28), and the weeding plate (24) is attached to the front end of the weeding frame (29). A bracket (30) for detachably supporting the lower part of the weed case (25) is provided on the weed frame (29), and a set pin (31) is provided on one side surface of the lower part of the weed case (25). While forming a U-shaped groove (32) downward from the upper edge of the bracket (30) and inserting the set pin (31) into the groove (32) from above, The case (25) is rotatable about the set pin (31) in the front and rear direction of the raising case (22) (tilt), and the case (2)
5) The lower part is supported by the bracket (30).

A drive case (33), which is an L-shaped bevel gear case in plan view, is provided on the upper part of the weed case (25).
Is integrally provided, and the output side end of the drive case (33) is bolted to the upper side surface of the grass case (25),
The drive sprocket (35) is pivotally supported on the output side bevel gear shaft (34) projecting from the drive case (33) to the upper inside of the grass case (25), and the lower inner side of the grass case (25) is supported. A tine chain (36) for attaching the grass tine (26) at a predetermined interval is stretched between a driven sprocket (not shown) that is rotatably supported and the drive sprocket (35).

Further, a stopper rib (37) is formed on the outer periphery of the input side end of the drive case (33) extending toward the rear of the machine body at one side of the upper part of the weed case (25) and at the same time as the output side. A shaft coupling (41) is provided at the end of an input side bevel gear shaft (40) that is interlockingly connected to the bevel gear shaft (34) through a pair of bevel gears (38) (39), and the shaft coupling (41) is used as the drive case. It is made to project from the input side end of (33).

On the other hand, the pull-up drive shaft (42) is projected from the rear surface side of the pull-up case (22) to the upper part of the inside, and the drive sprocket (4) is placed on the pull-up drive shaft (42).
3) The engaging tines (23) are supported by the driving sprocket (43) and a driven sprocket (not shown) that is rotatably supported by the inner lower part of the raising case (22). Tine chain (4
4) is stretched.

Further, as shown in FIGS. 5 and 6, a window (45) is opened in the front surface of the upper part of the raising case (22), and the upper part of the weeding case (25) can be detachably attached to the window (45). The base plate (46) to be supported by the inner side is fitted and fixed from the inside, and the base plate (46) is arranged in front of the pulling drive shaft (42). The mounting seat (47) is integrally formed on the outer periphery of the intermediate portion. The mounting seat (47) is provided with the provided locking ring (48).
Are bolted to the outer side surface of the base plate (46) with the spacer (49) interposed therebetween, and the locking ring (48) is attached to the outer side surface of the base plate (46), and the input side end of the drive case (33) is attached. A receiving portion (49) into which the portion is detachably fitted is formed on the upper front surface of the pulling case (22), and the shaft coupling (41) is inserted into a base plate (46) serving as the bottom surface of the receiving portion (49). A hole (50) has been opened.

The lower part of the weed case (25) is supported by the bracket (30), and the weed case (25) is rotated rearward of the machine body around the set pin (31) to drive the drive case ( 33) The end portion on the input side of 33) is fitted into the receiving portion (49), and the shaft coupling (41) is formed into the hole (50).
From the inside of the pull-up case (22) to fit into the angular shaft (42a) formed at the tip of the pull-up drive shaft (42), while the weed case (25) is centered around the set pin (31). The input side end of the drive case (33) is pulled out from the receiving part (49) and the shaft coupling (41) is pulled out from the square shaft (42a) by rotating the shaft toward the front of the machine. ing.

Further, as shown in FIG. 7, a split collar (51) for fixing the weed case (25) in a set state is provided, and a pair of semi-circular split collars (51) of the split collar (51) are provided. 52) (53) Sleeves (54) (5
5) is fixed and the sleeves (54) and (55) are rotatably fitted to the support shaft (56), and each half collar (5).
2) One end side of (53) is rotatably connected, and each half-split collar (52) (53) is swung about a support shaft (56) to open and close the split collar (51). ,
Stopper (57) on the outside of the other end of one half collar (53)
When the nut (58) is attached via the stopper and the split collar (51) is closed, a latch (59) for superimposing the tip side on the stopper (57) is attached to the other end of the other half split collar (52). A knob bolt (60) that is attached to the outside and is screwed to the nut (58) through a stopper plate (57) and a latch plate (59) that overlap is provided to hold the split collar (51) closed. The small part (61) to be fitted to the proximal side of the stopper rib (37) on the outer periphery of the input side of the case (33) and the outer periphery of the locking ring (48) to be fitted to the distal side of the mounting seat (47). A large-sized portion (62) to be formed is formed on each of the half collars (52) (53), and a locking rib (63) is formed on the outer peripheral surface of the tip of the locking ring (48). 48) Locking rib (63) on the outer circumference
The engaging groove (64) is provided between the mounting seat (47) and the mounting seat (47), and the engaging claw (65) to be fitted into the engaging groove (64) is formed into a large-sized portion of each of the half collars (52) (53). It is formed on the inner peripheral surface of the end of (62).

Then, the respective half-split collars (52) (53) of the split collar (51) in the opened state are fitted to the drive case (33) in the fitted state on the outer peripheral side of the locking ring (48) to form the knob. The split collar (51) is closed and held by the attached bolt (60), and the input side end portion of the drive case (33) is grasped by the small diameter portions of the split collars (52) and (53). ) (53) by engaging and holding the locking claw (65) in the locking groove (64) on the outer periphery of the locking ring (48), the receiving portion (4) at the input side end of the drive case (33).
9), the bolt with a knob (60) is removed, the split collar (51) is opened, and the half split collars (52) (53) are removed, thereby removing the receiving portion (49). The input side end of the drive case (33) can be pulled out from the drive case (33). The drive case (33) on the upper side of the weed case (25) is raised by the split collar (51) to the upper front surface of the raising case (22). It is configured to be detachably attached to the receiving portion (49).

Further, the stopper rib (37) of the drive case (33) is crimped and held to the end face of the locking ring (49) to prevent rattling, so that the split collar (5) can be prevented.
When mounting 1), the locking claw (65) of the split collar (51)
And the taper (cam structure) (66) formed on the engaging surface between the engaging ring and the engaging rib (63) of the engaging ring (48), so that the drive case (33) is pulled toward the pulling case (22) side. I am configuring.

This embodiment is constructed as described above, and the set pin (3) projectingly provided on one side of the lower part of the weeding case (25).
1) is fitted into the groove (32) formed in the bracket (30) of the grass frame (29) from above, and the grass case (2)
After supporting the lower part of 5) on the bracket (30),
The input case of the drive case (33) integrally attached to one side of the upper part of the weed case (25) by rotating the weed case (25) toward the rear of the machine about the set pin (31), 22) is fitted into the receiving portion (47) formed on the upper front surface, the split collar (51) is attached, and the input side end of the drive case (33) is integrally connected to the receiving portion (49).
While the attachment of the weed case (25) is completed, the weed case (25) can be removed by performing the attaching operation in reverse, and the weed case (25) can be attached / detached with one touch without using a tool or the like. Can be done.

[0017]

As is apparent from the above embodiments, according to the present invention, on the front side of the raising case (22) for projecting the raising tine (23) in the left-right direction of the machine body, the tine (26) is provided in the traveling direction of the machine body. ) In the structure for attaching the weed case (25), the set pin (31) provided in the lower part of the weed case (25) forms a groove (32) formed in the bracket (30) of the weed frame (29). ) Is inserted from above into the drive case (33) provided on the upper part of the weed case (25) by rotating the weed case (25) to the rear of the machine about the set pin (31). The end portion is fitted into the receiving portion (49) provided on the upper front surface of the raising case (22),
The weed case (25) is in a set state, and is provided with a split collar (51) for fixing the weed case (25) in the set state, and the split collar (51) is a pair of half split collars (5).
2) A support shaft (56) that rotatably connects one end of (53)
The half-collars (52) (53) are fitted around the outer periphery of the drive case (33), and the half-collars (52) (53) are formed at one end of each half-collar (52) (53). The claw (65) has a locking groove (6) formed on the outer periphery of the receiving portion (49).
4) is fitted from the outer peripheral side and the withdrawal of the drive case (33) from the receiving part (49) is prevented, so that the weed case (25) can be easily attached and detached up and down, In addition, even after removing the weeding case (25), there is little protrusion from the front of the raising case (22), which can prevent the appearance from being impaired and can be raised smoothly without catching the grain stems. Has a positive effect.

[Brief description of drawings]

FIG. 1 is a sectional plan view of a pretreatment unit.

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

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

FIG. 4 is a side view of a pretreatment unit.

FIG. 5 is a front view of an upper support portion of the weeding case.

FIG. 6 is a sectional side view of an upper support portion of the weeding case.

FIG. 7 is a sectional front view of an upper support portion of the weeding case.

[Explanation of symbols]

 (22) Raising case (23) Raising tine (25) Weeding case (26) Weeding tine (29) Weeding frame (30) Bracket (31) Set pin (32) Groove (33) Drive case (49) Receiving Part (51) Split color

Claims (1)

[Claims] 1. In a structure in which a weed case for projecting a weeding tine in the direction of travel of the machine is attached to the front side of a hoisting case for projecting the weed tine in the left-right direction of the machine body, the structure is provided at the lower part of the weed case. The set pin is fitted into the groove formed on the bracket of the grass frame from above, and the rotation of the grass case around the set pin toward the rear of the machine causes the end of the drive case provided on the upper part of the grass case. The part is fitted to the receiving part provided on the front upper part of the raising case, the weeding case is in a set state, and the split collar is provided with a split collar, and the split collar is a pair of half split collars. It is opened and closed around a support shaft that rotatably connects one end,
Each half collar is fitted to the drive case from the outer peripheral side, and a locking claw formed at one end of each half collar is fitted to the locking groove formed on the outer circumference of the receiving portion from the outer peripheral side, A combine pretreatment device, characterized in that the drive case is prevented from being pulled out from the receiving portion.