JP2548077B2 - 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 device for threshing grain culms cut by a cutting section.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Laid-Open No. 61-170241.
As shown in, when the threshing part is opened to the side to perform maintenance and inspection of the handling room and the handling barrel, and replacement of the crimp net, the fulcrum shaft should be
Move the feed chain to the center and open the side of the threshing section.
There was a technique to make it.

[0003]

[0007] The prior art, but eliminates the tedious work effort to remove the feed chain, threshing section
Rotate the feed chain downward to the side to open it.
The maintenance of the handling cylinder or replacement of the crimp net.
Work from the space above the feed chain
Workers approach the threshing section over the feed chain
Not only is it troublesome, but also lift the feed chain at the end of work.
The heavy feed chain.
It may be difficult to lift and may be damaged due to damage to the fixing part.
There is a problem that the dry chain drops by its own weight.

[0004]

Therefore, the present invention is intended for threshing.
When the feed chain is stretched in the front-back direction on the part side,
The upper part of the flap that is installed opposite the feed chain transport section.
For combine threshing equipment to be attached to a free threshing cover
The drive sprocket for tensioning the feed chain.
It is pivotally supported at one end of the rail, and the front and back direction is on the one side of the threshing unit.
Extending the chain rail to the
Install the feed chain via the drive sprocket,
Chain rail opposite to the drive sprocket mounting position
The end part is connected to the side of the threshing part via a horizontal rotation fulcrum shaft,
A feed chain and a chain centered on the horizontal rotation fulcrum shaft
The rail is attached so that it can rotate in a substantially horizontal direction.
Remove the chain and chain rail by rotating them horizontally.
Since the side of the grain part is opened, the feed chain is
There is no trouble of lowering and operating
Operation to separate or join the feed chain more than before
It is easy to carry out and can be fed over the feed chain as before.
There is no need to change the crimp nets, and the side of the threshing part
The behavior of workers in the department is regulated by the feed chain.
And eliminate thrashing of the drive sprocket.
The drive unit can be
Simplified connection structure and improved ease of attachment / detachment
It is what you get aim.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a 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 combine, in which (1) is a track frame on which a traveling crawler (2) is mounted, and (3). Is a machine frame installed on the track frame (1), and (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 unit including a cutting blade and a grain culm transport mechanism,
(9) is an straw processing unit that faces the end of the straw chain (10), and (11) is a driver's seat (12) and a driving operation unit (13).
A driver's cab provided with (1) an engine section which is arranged at the rear right side of the machine chassis (3) and has an engine (15) provided therein;
6) is a grain tank which is arranged in front of the engine section (14) and stores the grain from the threshing section (4), and (17) is a discharge for taking out the grain in the grain tank (16) to the outside. It is an auger and is configured to continuously perform cutting and threshing work.

As shown in FIGS. 4 to 6, the upper side wall cover (18) of the threshing section (4) is provided to be openable upward, and the feed chain (5) is opened to the left side of the threshing section (4). It is provided freely, and it is attached to the column (19) of the cover (18) via the frame (20).
1) is connected and supported, and the base end of the cover (18) is openably and closably supported by a fixed bracket (22) on the threshing body side via a fulcrum shaft (23). Incidentally, (24) is a flap cover that covers the outside of the flap (21), and (25) is a lock member that holds the cover (18) closed.

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 fixed to each other, and the feed chain (5) is supported by the fixed brackets (35) (36) on the threshing body side so as to be openable laterally via the fulcrum shafts (33) (34). are 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 side plate (38a) of the side cover (38) is locked to the threshing front side plate (44).
5), the lock plate (45) is held in position on the front side plate (44) via the support shaft (46), the stopper pin (47) and the spring (48), and the side cover ( 38) is closed, the pin (43) contacts the guide lever (49) fixed to the lock plate (45),
The lock plate (45) is pushed downward against the spring (48), the pin (43) is engaged with the pin engaging groove (50) of the lock plate (45), and the side cover (38) and the feed are fed. It is arranged to hold the chain (5) fixed in the closed position.

A drive case (51) fixed to the body of the threshing unit (4) is provided with a drive shaft (52) for driving the feed chain (5).
2) is connected to the input shaft (53) via a gear (54), and the drive shaft (52) is freely connectable and disconnectable to a sprocket shaft (55) of the drive sprocket (26) via a limit clutch (56). By connecting and connecting the clutch clutches of the limit clutch (56) to the drive transmission system, the number of parts is reduced and durability is improved compared to the conventional pin coupling system. In a combine threshing device in which a feed chain (5) for transporting culms is provided to the side of the threshing unit (4) so as to be openable, a horizontal swing fulcrum shaft (33) which is the vertical axis of the feed chain (5)
(34) A sprocket shaft (5) which is a transmission connection part that is rotatably provided around the side part of the threshing part (4) and is detachably connected to a drive shaft (52) which is a drive part on the machine side.
5) is provided on the side away from the horizontal pivots 33, 34.

Further, the fulcrum shafts (33) and (34) supporting the rear end side of the feed chain (5) are located at a rear position of a size (t) from the sprocket shaft (57) of the driven sprocket (30). It is arranged closer to the threshing body side than the feed chain (5), and when the feed chain (5) is opened, the pivotal plate (29) is the rearmost end of the chain (5).
(32) is configured to minimize the amount of entry into the threshing body side and to prevent interference between the threshing body and the feed chain (5) while keeping the overall width of the machine body left and right within certain dimensions.

As is clear from the above, one of the threshing section (4)
If the feed chain (5) is stretched in
And a sliding rod to be installed opposite to the feed chain (5) transport section.
(21) Upper wall cover which is a threshing cover that can be opened upward
-In the combine threshing device attached to (18),
Drive sprocket (2) for tensioning the feed chain (5)
6) Support the chain rail (27) (28) on one end side.
Let the threshing part (4) on one side, and the chain rail in the front-back direction.
(27) (28) is extended and this chain rail (27)
(28) through the drive sprocket (26)
A drive chain (5) is erected and the drive sprocket is installed.
(26) Chain rail (27) (2) opposite to the mounting position
8) Horizontal rotation fulcrum shaft (33) with the end on the side of the threshing part (4)
(34), and the horizontal rotation fulcrum shaft (3
3) Feed chain (5) and chain centering on (34)
Rails (27) and (28) are attached so that they can rotate in a substantially horizontal direction.
I'm sick.

This embodiment is constructed as described above, and the rotary fulcrum shafts (33) and (34) for supporting the feed chain (5) in an openable manner are connected to the sprocket shaft () of the driven sprocket (30). 57) is located at the rear of the dimension (t) from the feed chain (5) and is located closer to the threshing main body side than the feed chain (5). Therefore, when the feed chain (5) is opened, the pivoting plate (29) ( 32) The amount of the trailing edge entering the threshing body side is minimized, and there is no inconvenience such as interference in the condition that the entire width of the machine is kept within a certain dimension without the feed chain (5) protruding outside the threshing body. You can perform various opening work.

Further, when the feed chain (5) is opened for rotation, the chain rails (27) (2) are provided with the feed chain (5) wound around the drive sprocket (26).
8) and the like, the feed chain (5) can be easily opened and the work efficiency is excellent. Moreover, when the feed chain (5) is opened, the handle body side cover (38) is opened. ) Is also pulled out at the same time and threshing part (4)
Since the side surface is in an open state, inspection and maintenance of the handling room and replacement of the crimp net (37) can be performed conveniently.

FIG. 7 shows another modified structure example, in which the rotation fulcrum shafts (33) and (34) are detachably provided, and the feed chain (5) is removed by removing the fulcrum shafts (33) and (34). ) The whole is configured to be able to be pulled out to the front side outward, so that it is possible to prevent the feed chain (5) from becoming an obstacle during maintenance and inspection of the handling room, thereby improving workability.

[0016]

As is apparent from the above embodiments, the present invention is directed to the feed chain in the front-rear direction on one side of the threshing section (4).
(5) is stretched and the feed chain (5) is transported.
The threshing blade (21) that is placed opposite the upper part can be opened freely.
Smell of combine threshing equipment attached to bar (18)
Drive sprocket for tensioning the feed chain (5)
Shaft (26) at one end of the chain rails (27) (28).
Support the threshing part (4) on one side in the front and rear direction
(27) (28) are extended and the chain rail (2
7) (28) through the drive sprocket (26)
The feed chain (5) is installed and the drive sprocket is
(26) Chain rail (27) opposite to the mounting position
(28) The end of the horizontal rotation fulcrum shaft (3
3) Connected via (34), the horizontal rotation fulcrum shaft
(33) (34) centering on feed chain (5) and chi
Rotate the rails (27) (28) almost horizontally
Installed, feed chain (5) and chain
Rotate the levers (27) and (28) horizontally to remove the threshing part.
(4) Since the side surface is opened, the feed chi
There is no trouble in lowering and operating the pens (5), and the threshing part
(4) Separate or contact the feed chain (5) to the side surface.
Since it is easier to perform the combining operation than before,
Crimp over the feed chain (5) as before.
There is no trouble of changing the net (37), and the threshing part (4) side
The action of the worker on the surface is determined by the feed chain (5).
It is possible to eliminate regulated problems, and
Straighten the sprocket (26) to the side of the threshing part (4)
By connecting and disconnecting with the drive, the drive unit connection structure can be simplified.
In addition, it is possible to easily improve the attachment / detachment operability .

[Brief description of drawings]

FIG. 1 is a side view illustrating a feed chain section.

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

FIG. 3 is a plan view of the same.

FIG. 4 is a cross-sectional explanatory view of a threshing unit.

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

FIG. 6 is an explanatory diagram of the same portion.

FIG. 7 is an explanatory view showing another modified structure example.

[Explanation of symbols]

(4) Threshing section (5) Feed chain (18) Upper side wall cover ( Through cover) (21) Sliding rod (26) Drive sprocket (27) (28) Chain rail (33) (34) Horizontal rotation fulcrum shaft

Claims (1)

(57) [Claims] 1. Feeding in the front-back direction on one side of the threshing section (4)
The chain (5) is stretched and the feed chain
(5) Open the flap (21) facing the transport section upward.
Combine thresher to attach to existing threshing cover (18)
Drive chain for installation of feed chain (5)
Attach the ket (26) to one end of the chain rails (27) (28)
The threshing part (4) on one side and the chain is moved in the front-back direction.
Rails (27) and (28) are extended and the chain rail
(27) (28) through the drive sprocket (26)
And install the feed chain (5),
The chain rail (2
7) Horizontal rotation fulcrum shaft with (28) end on threshing part (4) side
(33) Connected via (34), the horizontal rotation fulcrum
Around the shafts (33) (34) the feed chains (5) and
Freely rotate the chain rails (27) (28) in a horizontal direction
Combined threshing device characterized by being attached to .