JP2852652B2 - 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, Japanese Utility Model Publication No. 55-47298,
Japanese Utility Model Publication No. 62-28840, Japanese Patent Application Laid-Open No. 61-1221.
No. 3, Japanese Utility Model Application Laid-Open No. 61-170241, when the threshing unit is opened to perform maintenance and inspection of the handling room and the handling cylinder and exchange of the crimp net, etc., the feed chain is centered on the fulcrum shaft. There was a technique to open the side of the threshing section by moving 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]

However SUMMARY OF THE INVENTION The present invention provides a threshing apparatus combine to stretched feed chain in the longitudinal direction in the threshing section one side, the vertical axis of the feed chain
Rotate in the horizontal direction and stretch the feed chain.
A drive sprocket is provided below between the wheels before and after
In addition, the tension chain on the loose side on the non-transport side of the feed chain
Since the feed chain is rotated horizontally to open the side of the threshing section, there is no burden of lowering and raising the feed chain as in the past, and the feed chain is separated from the side of the threshing section. In addition, the joining operation can be performed lighter than before, and there is no trouble of replacing the crimp net over the feed chain as in the past, and the behavior of the worker on the side of the threshing unit is regulated by the feed chain. And the driving sprocket
The upper part of the feed chain higher than the bracket is used as the driving force.
Therefore, the stalks can be transported while maintaining the tension, and the feed chain
Driving force on the driving sprocket at a position lower than the grain stalk transport path
And tighten the loose side of the feed chain.
Tension roller to maintain proper feed chain tension
Can also be installed at a lower position than the feed chain of the feed chain,
Extension of feed chain and simplification of driving force input structure
It can be easily achieved .

[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 also 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). attached to (27), at the side opening of the feed chain (5), the side cover (38), the tension roller (41), sprocket (42) is also one which integrally rotated sideways, the Chi
Feed rail (27) (28) or feed chain (5)
Open and close the threshing section (4) with the tension supported
It is not necessary to release the tension of the feed chain (5).
Open the feed chain (5) and side cover (38).
In addition to simplifying the closing operation, the side cover (3
Replacement or cleaning of the crimp net (37) by opening 8)
The configuration is such that removal can be easily performed .

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 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, in a threshing device of a combine in which a feed chain (5) is stretched in one direction on one side of a threshing unit (4) , a horizontal rotation fulcrum shaft which is a vertical axis is provided.
(33) Feed chain (5) around (34) horizontally
The feed chain (5).
Driven sprockets (30) and
Drive sprockets (2
6) and loosen on the non-transport side of the feed chain (5).
A tension roller (41) is provided only on the side. Soshi
Then , the feed chain (5) is rotated in the horizontal direction to open the side of the threshing unit (4), so that there is no burden of lowering and raising the feed chain (5) as in the related art. On the other hand, the operation of separating or joining the feed chain (5) can be performed lighter than before, and there is no need to replace the crimping net (37) through the feed chain (5) as in the conventional case, and the threshing unit (4) In addition to eliminating the problem that the action of the worker on the side surface portion is restricted by the feed chain (5), the operation of the feed sprocket (26) is improved.
The upper side of the feed chain (5) at the high position is driven by the driving force.
Maintain tension and transport the cereal stalks and feed chain (5)
Drive sprocket (26) at a position lower than the culm transport path
Input the driving force and adjust the loose side of the feed chain (5).
Tighten to maintain proper tension of feed chain (5)
The tension roller (41) is also the grain of the feed chain (5).
Attached at a lower position than the culm transport path, stretched the feed chain (5)
And simplification of setting and the driving force input structure is easily constructed as FIG be.

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]

Obviously the present invention from the above examples according to the present invention, in the threshing apparatus combine to stretched feed chain (5) in the longitudinal direction in the threshing section (4) one side, a vertical
Feed chain (5) horizontal around axes (33) (34)
And feed chain (5)
The drive slides downward between the wheel bodies (30) and (42) before and after the
Proket (26) provided and feed chain (5)
The tension roller (41) is provided on the non-transport side and on the loose side, and the feed chain (5) is rotated in the horizontal direction to open the side of the threshing unit (4). There is no burden of lowering and raising the feed chain (5), and the operation of separating or joining the feed chain (5) to the side of the threshing unit (4) can be performed lighter than in the past, and as in the past. There is no trouble to replace the crimp net (37) over the feed chain (5), and the action of the worker on the side of the threshing unit (4) is the feed chain (5).
Co-if it is possible to eliminate the problem, which is regulated by the
In addition, a filter located at a higher position than the driving sprocket (26).
Keep the upper part of the chain (5) tight by the driving force.
The culm can be transported, and the culm transport path of the feed chain (5)
Drive force into the drive sprocket (26) at a lower position
And tighten the loose side of the feed chain (5).
Tension to maintain the tension of the feed chain (5) properly.
Roller (41) also feeds the culm of the feed chain (5)
Can be mounted in lower position, feed chain
(5) It is possible to easily simplify the stretching and the driving force input structure .

[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 unit (5) Feed chain (26) Drive sprocket (30 ) Driven sprocket ( wheel ) (33) (34) Horizontal rotation fulcrum shaft (vertical axis) (41) Tension roller (42) Sprocket (wheel ) body)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01F 12/10 A01F 12/00

Claims (1)

(57) [Claims] 1. A combine threshing device in which a feed chain (5) is stretched in one direction on one side of a threshing unit (4), wherein the feed chain (5) is arranged around vertical axes (33) and (34 ).
With rotating the horizontally feed chain (5)
Between the rings (30) and (42) before and after the
A drive sprocket (26) is provided and a feed chain
(5) Tension roller (41) on non-transport side and loose side
Combine threshing apparatus, wherein a is provided.