JP2900031B2 - 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 disclosed in Japanese Utility Model Unexamined Publication No. Sho 61-170241 or Japanese Patent Laid-Open Publication No. Sho 61-12213,
In the case where the threshing section is opened to the side to perform maintenance and inspection of a handling room and a handling cylinder and exchange of a crimp net, there has been a technique in which a feed chain is moved around a fulcrum shaft to open a side of the threshing section.

[0003]

In the prior art described above, 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 for clamping and transporting a grain culm by extending a feed chain and a clamping rod in the front-rear direction on one side of a threshing unit in which a handling cylinder and a crimp net are provided. In the above, the handle cylinder upper cover and the clamping rod are attached so as to be rotatable upward around the fulcrum axis on the other side of the threshing section opposite to the feed chain, and the feed chain, the chain rail and the handle cylinder side cover are horizontally It is provided on the vertical axis so that it can rotate in the direction, and the feed chain is rotated horizontally to open the side of the threshing section, so there is no burden of lowering and raising the feed chain as in the past, and the side of the threshing section The operation of separating or joining the feed chain can be performed lighter than before, and there is no need to replace the crimp net over the feed chain as in the past, and the operator on the side of the threshing unit has no trouble. Since the movement can be prevented from being restricted by the feed chain, and the handle upper cover is rotated upward around the fulcrum axis opposite to the feed chain, and the feed chain and the handle side cover are horizontally rotated, Both the side and the upper part of the threshing section where the feed chain is attached can be opened widely, improving the workability such as attaching / detaching and replacing / cleaning the handling cylinder or crimper net and simplifying the handling operation. The chain rail can be connected to form a unit by providing the feed chain and the handle side cover on the chain rail, which can easily improve the rigidity of the chain rail and the cover and the detachability of the feed chain and the cover. is there.

[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 threshing unit (4) body side 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 clutch pawls of the limit clutch (56), thereby reducing the number of parts and improving durability as compared with the conventional pin connection system. 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, the feed chain (5) and the clamping rod (21) are stretched in the front-rear direction on one side of the threshing unit (4) in which the handling cylinder (6) and the crimp net (37) are provided. In the combine for holding and transporting the grain stalks, a threshing section (4) on the opposite side to the feed chain (5), a fulcrum shaft (23) on the other side, and an upper side wall cover (18) serving as an upper cover for handling cylinders. And the clamping rod (21) are rotatably mounted upward, and the feed chain (5) and the chain rail (27) are attached.
(28) and the handle body side cover (38) are provided on the horizontal rotation fulcrum shafts (33) and (34), which are the vertical axes, so that the feed chain (5) can be rotated in the horizontal direction. Opening the side of the threshing section (4) to remove the feed chain (5) from the side of the threshing section (4) without the burden of lowering and raising the feed chain (5) as in the past. In addition to being able to perform lighter than before, there is no need to replace the crimping net (37) over the feed chain (5) as in the conventional case, and the action of the operator on the side of the threshing unit (4) is the feed chain (5). The upper wall cover (18) is rotated upward around the fulcrum shaft (23) on the opposite side of the feed chain (5),
Further, the feed chain (5) and the handle cylinder side cover (38) are horizontally rotated to open both the feed chain (5) mounting side and the upper portion of the threshing unit (4) greatly, and the handle cylinder (5) or The workability such as attachment and detachment of the crimp net (37) and replacement or cleaning is improved, and the handling operation is simplified, and the chain rails (33) and (34) are attached to the chain rail (27).
(28) are connected to form a unit by providing a feed chain (5) and a handle body side cover (38) on the chain rails (27) and (28), and forming the chain rails (27) and (28) and the cover (38). The configuration is such that the rigidity of the feed chain and the detachability of the feed chain (5) and the cover (38) can be improved.

The feed chain (5) is mounted on the side of the threshing unit (4) via horizontal rotation fulcrum shafts (33) and (34) so as to be rotatable in the horizontal direction, and a drive shaft (52) on the machine side. ) Or the sprocket shaft (55) on the side of the feed chain (5) is protruded, and the drive shaft (52)
The sprocket shaft (55) is engaged with the sprocket shaft (55) so that the sprocket shaft (55)
By simply rotating the feed chain (5) to the side in a state in which the feed chain (5) is incorporated, the feed chain (5) can be separated or engaged with the drive shaft (52), and the operation of separating and connecting the drive system of the feed chain (5) can be simplified. The drive input can be reliably cut off when the feed chain (5) is opened. Further, the feed chain (5) is mounted on chain rails (27) and (28) for supporting the driving sprocket (26) and the driven sprocket (30), and a tension roller (41) for tensioning the feed chain (5) is provided. Attached to the chain rails (27) and (28), the chain rail (27)
The feed chain (5) can be opened and closed to the side of the threshing unit (4) with the tension of the feed chain (5) supported by (28), and there is no need to release the tension of the feed chain (5). Can be simplified. In addition, the feed chain (5) chain rail (27) (2)
8) A horizontally rotating fulcrum shaft (33) so as to be freely rotatable in the horizontal direction.
The lock plate (45), which is a lock mechanism for attaching the chain rails (27) and (28) to the side of the threshing unit (4) so as to be freely detachable, is attached to the threshing unit (4) via the (34). The feed chain (5) is disposed within the endless extension locus of the chain (5), and the horizontal rotation fulcrum shafts (33) and (34) for horizontally mounting the feed chain (5) are separated from the lock plate (45). And the horizontal rotation fulcrum shaft (3
3) By separating the (34) and the lock plate (45) from each other, the feed chain (5), which is long in the front and rear direction, can be threshed by the horizontal rotation fulcrum shafts (33) and (34) and the lock plate (45). (4) The feed chain (5), which can be stably supported on the side and can be freely opened in the horizontal direction, can be attached with a higher strength, and the lock mechanism (45) can be simplified and the operability can be improved. ing.

In this embodiment, the rotation 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 released, 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.

[0016]

As is apparent from the above embodiment, the present invention is characterized in that one side of the threshing unit (4) in which the handling cylinder (6) and the crimping net (37) are installed is sandwiched with the feed chain (5) in the front-rear direction. In a combine which stretches a strangling rod (21) to pinch and transport the grain culm, a threshing section (4) on the opposite side to the feed chain (5) and a handle cylinder upper cover (23) around a fulcrum shaft (23) on the other side. 18) and the clamping rod (21) are rotatably mounted upward, and the feed chain (5) and the chain rail (27) are attached.
(28) and a handle cylinder side cover (38) are provided on the longitudinal axes (33) and (34) so as to be rotatable in the horizontal direction. The feed chain (5) is rotated in the horizontal direction to remove the threshing unit ( 4) Since the side is opened, there is no burden of lowering and raising the feed chain (5) as in the conventional case, and the operation of separating or joining the feed chain (5) to the side of the threshing unit (4) is lighter than before. In addition, there is no need to replace the crimping net (37) over the feed chain (5) as in the conventional case, and the action of the worker on the side of the threshing unit (4) is not affected by the feed chain (5). In addition, the handle cylinder upper cover (18) can be rotated upward around the fulcrum shaft (23) opposite to the feed chain (5), and the feed chain (5) and the handle cylinder can be removed. Horizontal side cover (38) Since both the feed chain (5) of the threshing unit (4) and the upper side of the feed chain (5) can be widely opened, the workability such as attachment and detachment of the cylinder (6) or the crimp net (37) and replacement or cleaning can be improved. The handling operation can be simplified easily, and the vertical axis (33) (3)
The chain rails (27) and (28) are connected to the chain rails (4), and the feed chain (5) and the handle side cover (38) are provided on the chain rails (27) and (28) to form a unit. It is possible to easily improve the rigidity of the cover (28) and the cover (38) and the detachability of the feed chain (5) and the cover (38).

[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 (6) Handle cylinder (18) Upper side wall cover (handle cylinder upper cover) (21) Clamping rod (23) Support shaft (27) (28) Chain rail (33) ( 34) Horizontal pivot shaft (vertical axis) (37) Crimp net (38) Handle body side cover

Claims (1)

(57) [Claims] 1. A combiner in which a feed chain and a clamping rod are stretched in the front-rear direction on one side of a threshing unit in which a handling cylinder and a crimping net are installed, and a grain culm is clamped and conveyed. The handle cylinder upper cover and the clamping rod are mounted rotatably around the fulcrum axis on the other side of the threshing section, and the feed chain, the chain rail and the handle cylinder side cover are provided on the vertical axis so as to be rotatable horizontally. Threshing equipment for combine harvesters.