JP2729609B2 - Combine threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine threshing apparatus for threshing grain stalks that have been cut at a cutting section.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Laid-Open Publication No. Sho 61-170241, when a threshing section is opened to perform maintenance and inspection of a handling room and a handling cylinder and exchange of a crimp net, a fulcrum shaft is mainly used. There was a technology to move the feed chain to open the side of the threshing section.

[0003]

In the above prior art, the troublesome work of removing the feed chain was saved, but the feed chain was rotated downward and opened to the lower side of the threshing unit side, so that the maintenance and inspection of the handling cylinder was performed. Or it is necessary to replace the crimp net from the space above the feed chain, and it is troublesome for the worker to approach the threshing section through the feed chain, and at the end of the work, lift the feed chain and return it to the original position. The feed chain needs to be returned, and there is trouble in lifting the heavy feed chain, and there is a problem that the feed chain falls due to its own weight due to damage to the fixing portion.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a combine threshing device in which a feed chain is stretched in the front-rear direction on one side of a threshing unit, and a chain rail for supporting a driving sprocket and a driven sprocket at both ends. A tension member that attaches the feed chain and connects the chain rail end on the driven sprocket side to the side of the threshing unit via a horizontal rotation fulcrum shaft that rotatably provides the chain rail in the horizontal direction, and tensions the feed chain. Is attached to the chain rail, and the feed chain and the chain rail are rotated horizontally to open the side of the threshing unit.Therefore, there is no trouble of lowering and raising the feed chain as in the past. The operation of separating or joining the feed chain can be performed more easily than before, and There is no hassle of replacing the crimping net over the feed chain, and it is possible to eliminate the problem that the action of the worker on the side of the threshing unit is restricted by the feed chain, and the tension member is attached to a chain rail supported by the threshing unit. Since it is mounted, the feed chain can be opened and closed and moved to the side of the threshing unit in a state where the feed chain is tensionally supported on the chain rail, and it is not necessary to release the tension of the feed chain,
The opening and closing operation of the feed chain can be easily simplified.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an explanatory side view of a feed chain portion, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view of the same, where (1) is a track frame on which a traveling crawler (2) is mounted, and (3) Is a machine frame installed on the truck frame (1), (4) is a threshing unit in which a feed chain (5) is stretched to the left and a handling drum (6) and a processing drum (7) are built in, (8). ) Is a mowing section provided with a cutting blade and a grain culm transport mechanism, (9) is a straw processing section that faces the end of a straw chain (10), (11) is a driver's seat (12) and an operation section (1).
A driver's cab provided with 3), an engine section (14) provided at the rear right side of the machine chassis (3) and an engine (15) provided therein;
A grain tank (16) is disposed in front of the engine unit (14) to store grains from the threshing unit (4), and (17) takes out grains in the grain tank (16) to the outside. It is a discharge auger and is configured to perform continuous harvesting and threshing work.

As shown in FIGS. 4 to 6, an upper wall cover (18) of the threshing unit (4) is provided so as to be openable upward, and the feed chain (5) is opened to the left of the threshing unit (4). The support rod (2) is provided on the support (19) of the cover (18) via a frame (20).
1) is connected and supported, and the base end of the cover (18) is supported on a fixed bracket (22) on the threshing body side via a fulcrum shaft (23) so as to be openable and closable. In addition, (24) is a clamping rod cover which covers the outside of the clamping rod (21), and (25) is a lock member for closing and holding the cover (18).

A drive sprocket (26), which is a front rotating body, is provided at the front end of the lower chain rail (27), and is provided at the rear ends of the lower and upper chain rails (27) and (28). And a driven sprocket (30) as a rear rotating body, and a feed chain (5) is stretched over each of the sprockets (26) and (30). ) And the pivot plate (2)
9) An upper and lower horizontal pivot shaft (33) (3) is attached to a lower pivot plate (32) which is connected and fixed downward via a column (31).
4) are fixedly mounted, and the feed chain (5) is supported on the fixing brackets (35) and (36) on the threshing body side via the fulcrum shafts (33) and (34) so as to be openable to the side. doing.

Further, the handle rail side cover (38) which presses the lower end to the outer end (37a) of the crimping net (37) under the handle cylinder (6) is attached to the chain rail (27).
(28) via a mounting frame (39) (40) and a tension roller (41) and a sprocket (42) of the feed chain (5) via a guide plate (42a). (27), when the feed chain (5) is opened to the side, the side cover (38), the tension roller (41), and the sprocket (42) are integrally rotated sideways. I have.

When the feed chain (5) is closed, the locking pin (43) of the front plate (38a) of the side cover (38) is connected to the lock plate (4) on the threshing front plate (44).
5), the lock plate (45) is held on the front side plate (44) via the support shaft (46), the stopper pin (47) and the spring (48), and the side cover ( 38) When the pin (43) is closed, the pin (43) abuts on a guide lever (49) fixed to the lock plate (45),
The lock plate (45) is pushed downward against the spring (48), and the pin (43) engages with the pin engagement groove (50) of the lock plate (45), and the side cover (38) and the feeder The chain (5) is configured to be fixedly held in the closed position.

A drive case (51) fixed to the main body of the threshing unit (4) is provided with a drive shaft (52) for driving the feed chain (5).
2) is connected to an input shaft (53) via a gear (54), and is connected to a sprocket shaft (55) of the drive sprocket (26) via a limit clutch (56). Are connected and connected to each other to form a drive transmission system using the clutch claws of the limit clutch (56), thereby reducing the number of parts and improving durability as compared with the conventional pin connection system, and transporting the grain hulls for threshing. A feed chain (5) is provided so as to be openable to the side of the threshing unit (4), and the feed chain (5) is rotatable about a horizontal rotation fulcrum shaft (33) (34) which is a vertical axis. And a drive shaft (52) which is a drive unit on the machine side.
A sprocket shaft (55), which is a transmission connection portion detachably connected to the shaft, is provided on a side remote from the horizontal rotation fulcrum shafts (33) and (34).

Further, the fulcrum shafts (33) and (34) supporting the rear end side of the feed chain (5) are located at a position rearward from the sprocket shaft (57) of the driven sprocket (30) by a dimension (t), It is arranged closer to the threshing body side than the feed chain (5), and when the feed chain (5) is opened, a pivot plate (29) which is the rearmost end of the chain (5).
(32) is designed to prevent the interference between the threshing body and the feed chain (5) while minimizing the amount of entry into the threshing body side of (32) and keeping the overall width of the machine right and left within certain dimensions. In a structure in which a feed chain (5) for transporting grain culm is provided to be openable to the side of the threshing unit (4), a horizontal rotation fulcrum shaft (33) of the feed chain (5) opening to the side of the threshing unit (4). (34) is provided at a position further outward than the sprocket shaft (57) of the sprocket (30) supporting the end of the feed chain (5) and closer to the threshing body than the feed chain (5). .

As is apparent from the above description, in a combine threshing apparatus in which a feed chain (5) is stretched in one direction on one side of a threshing unit (4), a driving sprocket (26)
The feed chain (5) is mounted on chain rails (27) and (28) that support the driven sprocket (30) at both ends, and the chain rails (27) and (28) are horizontally rotatable. Moving fulcrum shaft (33)
A tension roller as a tension member for connecting the ends of the chain rails (27) and (28) on the driven sprocket (30) side to the side of the threshing unit (4) via (34) and tensioning the feed chain (5). (41) is attached to the chain rails (27) and (28), and the feed chain (5) and the chain rails (27) and (28) are rotated in the horizontal direction to open the side of the threshing unit (4). ,
There is no trouble of lowering and raising the feed chain (5) as in the related art, and the operation of separating or joining the feed chain (5) to the side of the threshing unit (4) can be performed more easily than in the conventional case. There is no need to replace the crimping net (37) over the feed chain (5), and it is possible to eliminate the problem that the behavior of the worker on the side of the threshing unit (4) is restricted by the feed chain (5), and also threshing. Since the tension roller (41) is attached to the chain rails (27) and (28) supported by the section (4), the threshing section is provided with the feed chain (5) being supported by the chain rails (27) and (28) under tension. (4) The feed chain (5) can be opened and closed so that the tension of the feed chain (5) does not need to be released, and the opening and closing operation of the feed chain (5) can be simplified.

This embodiment is constructed as described above, and the rotating fulcrum shafts (33) and (34) for supporting the feed chain (5) in an openable manner are connected to the sprocket shaft (30) of the driven sprocket (30). Since the feed chain (5) is disposed closer to the threshing body side than the feed chain (5) at a position rearward from the feed chain (5) by the dimension (t), the pivot mounting plate (29) ( 32) The margin of entry into the threshing body side at the rear end is minimized, and the safety without any inconvenience such as interference in a state where the entire body width is suppressed to a certain size without extending the feed chain (5) to the outside of the threshing body. Opening work can be performed.

When the feed chain (5) is pivotally opened, the chain rails (27) and (2) are wound with the feed chain (5) wound around the driving sprocket (26).
8), the feed chain (5) can be easily opened and the work efficiency is excellent, and when the feed chain (5) is opened, the handle cylinder side cover (38) is opened. ) Is also drawn out at the same time, and threshing section (4)
The side surface is in an open state, so that inspection and maintenance of the handling room and replacement work of the crimp net (37) can be conveniently performed.

[0015]

As is apparent from the above embodiments, the present invention relates to a combine threshing apparatus in which a feed chain (5) is stretched in one direction on one side of a threshing section (4), and a driving sprocket (26) and a driven sprocket (26) are provided. Sprocket (30)
The feed chain (5) is mounted on chain rails (27) and (28) that support the shaft at both ends, and the chain rails (33) are provided so that the chain rails (27) and (28) are rotatable in the horizontal direction. A tension member (41) for connecting the ends of the chain rails (27) and (28) on the driven sprocket (30) side to the side of the threshing unit (4) via (34) and tensioning the feed chain (5). Since it is attached to the chain rails (27) and (28), the feed chain (5) and the chain rails (27) and (28) are horizontally rotated to open the side of the threshing unit (4). There is no trouble of lowering and raising the feed chain (5), and the feed chain (5) is located on the side of the threshing unit (4).
The operation of separating or joining the two can be performed more easily than in the past, and the feed chain (5)
There is no trouble to exchange the crimp net (37)
The threshing unit (4) can eliminate the problem that the behavior of the worker on the side part is restricted by the feed chain (5),
Chain rail (27) supported by threshing unit (4)
Since the tension member (41) is attached to the (28), the feed chain (5) can be opened and closed on the side of the threshing unit (4) while the feed chain (5) is supported in tension on the chain rails (27) and (28). It is not necessary to release the tension of the feed chain (5), and the opening and closing operation of the feed chain (5) can be simplified easily.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a feed chain unit.

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

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory sectional view of a threshing unit.

FIG. 5 is an explanatory plan view of a feed chain unit.

FIG. 6 is a partial explanatory view of the same.

[Explanation of symbols]

 (4) Threshing section (5) Feed chain (26) Drive sprocket (27) (28) Chain rail (30) Driven sprocket (33) (34) Horizontal rotation fulcrum shaft

Claims (1)

(57) [Claims] In a combine threshing apparatus in which a feed chain is stretched in the front-rear direction on one side of a threshing unit, the feed chain is attached to a chain rail for supporting a drive sprocket and a driven sprocket at both ends, and attaching the chain rail. A chain rail end on the driven sprocket side is connected to a side of the threshing unit via a horizontal rotation fulcrum shaft rotatably provided in a horizontal direction, and a tension member for tensioning the feed chain is attached to the chain rail. Threshing equipment to combine.