JPH0330Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is used as a protective cover for a threshing machine, and in particular, a feed chain is installed below the outside of the handling opening, and a guide rail is installed above it. The present invention relates to a protective cover device for an underhandling type threshing machine equipped with an under-chain type grain culm clamping and conveying device.

[Prior art]

Previously, the top handling type threshing machine was
As shown in the publication, the feed chain side of the top plate that covers the upper side of the handling chamber is bent downward integrally to form a safety and protection cover for the guide rail, and the side opposite to the feed chain is pivoted with a hinge so that the top plate can be bent downward. A top cover that can be opened and closed in both directions is used, and with the top cover open upwards, the handling room can be cleaned, and the guide rail can be removed to allow the grain to be caught in the grain holding and conveying device. It is designed to remove clogged grain culms.

[Problems to be solved by the invention] In the case of this type of top-handling threshing machine, the feed chain is located high and the bent part covering the guide rail is also small, so the top cover is relatively light and can be opened and closed easily. This is relatively easy, and the upper part of the handling chamber can be opened widely.

However, the feed chain of a bottom-handling type threshing machine is located at a low position, and if the above-mentioned integrated top cover is used for the bottom-handling type, the feed chain side of the top cover must be bent long downward to cover the guide rail. As a result, the entire top cover becomes heavy and difficult to open and close, and the bent portion protrudes downward for a long time, making it difficult to open and close the top cover.
The upper part of the handling chamber cannot be substantially opened widely, resulting in defects such as difficulty in cleaning the handling chamber.

The technical problem of this invention is to solve the above problems by dividing the top cover and the rail cover that covers the front of the guide rail so that the top cover can be opened and closed independently. For example, by making it possible to attach/detach or tighten/loose the guide rail without removing the rail cover,
It is also an object of the present invention to enable easy removal of clogged matter in a grain culm clamping and conveying section.

[Means for solving problems]

In order to solve the above problems, the protective cover device for a thresher according to the present invention is as follows.

A top plate cover 2 that covers the upper part of the handling chamber is used in an under-handling type threshing machine which is provided with an under-chain-type grain culm clamping and conveying device 15 provided with a guide rail 17 above a feed chain 16 on the outside and lower side of the handling opening 10.
5 and a rail cover 23 that covers the front surface of the guide rail 17 are separately formed, and the top plate cover 25 supports the side opposite to the guide rail 17 so as to be openable and closable. , the other end extends to the upper part of the guide rail 17, and the extended part covers the guide rail 17 from above, and when the top plate cover 25 is open, it is possible to cover the guide rail 17 from above between the rail cover 23 and the handling room side wall 6. This is characterized in that the guide rail 17 can be integrally attached to and detached from, or tightened and loosened from, the rail base 18 by the following operations.

[Effect]

When cleaning the handling chamber 1, open the top plate cover 25, but at the same time, if the culm is caught or clogged between the feed chain 16 and the guide rail 17, remove the bolt 20 from the operation space 29.
to move the guide rail 17 to the rail base 18.
Remove the blockage by loosening or removing it.

〔Example〕

An embodiment of the present invention will be described based on the drawings. Reference numeral 1 denotes a handling chamber of a bottom handling type threshing machine, which is surrounded by a front wall frame 2, a rear wall frame 3, a cylinder cover 4, a receiving net 5, a side wall 6, etc. In the handling chamber 1, a handling cylinder 7 is pivotally attached to a handling cylinder shaft 8 which is mounted between the front wall frame 2 and the rear wall frame 3.

Reference numeral 9 denotes a tachometer connected to the shaft end of the handling barrel shaft 8 via a flexible cable 9a, and is used by being attached at a position easily visible to the operator; for example, in the case of a combine harvester, it is attached to the operation panel.

10 is an upper lip plate 11 and a lower lip plate 12 provided on the side wall 6.
A handling port opened between the grain culm supply port provided in the front wall frame 2 and the grain culm discharge port provided in the rear wall frame 3 are the above-mentioned handling port 10.
communicated via.

Reference numeral 13 denotes an inclined plate that stands above the upper lip plate 11 at the starting end of the handling opening, and as shown in FIG.
This prevents debris generated at the entrance of the handling chamber from adhering to or accumulating in the corner space 14, and directs grains, etc. that are repelled by the handling barrel 7 to the rear to feed the grain into the culm. It is designed to prevent it from scattering from the mouth to the outside.

The grain culm clamping and conveying device 15 provided on the outside of the handling port includes an under-chain type feed chain 16 installed below the handling port, and a guide rail 17 provided above in opposition to the feed chain 16. To explain this in detail, reference numeral 18 denotes a rail base that supports the guide rail 17, and is formed into an L-shaped cross section consisting of an upper side 21 and a vertical side 19, and has hook-shaped bolt holes 19a at both ends of the vertical side 19. Nuts 2a and 3a are welded to the bent edges of both the front and rear wall frames 2 and 3, respectively.
20 is a rail mounting bolt, with a tightening seat 2 in the middle.
0a is provided, which is connected to the bolt hole 19a,
The rail base 18 is fixed by fitting into the rail base 19b and tightening the nuts 2a and 3a. When the bolt 20 is loosened, the rail base 18 can be moved toward the end of the handling chamber, and can also be moved upward there.

A pin 17a provided at the upper part of the guide rail 17 is fitted and supported on the upper side 21 of the rail base 18 so as to be slidable in the vertical direction, and a spring 22 interposed between the guide rail 17 and the rail base 18 supports the guide rail. 17 is the lower feed chain 1
It is biased in six directions. and guide rail 1
The lower edge of the feed chain 7 is placed along the slope of the working part of the feed chain 16, which is constructed so that the starting end is low and the rear end is higher.

A rail cover 23 covers the front surface of the guide rail 17, and a bracket 24 is attached to the rail base 18.
It is attached via. The lower edge of the cover 23 is formed to be inclined along the lower edge of the guide rail 17,
Further, the upper edge is formed horizontally at approximately the height of the rear end of the rail base 18.

Reference numeral 25 denotes a top plate cover that is integrally attached to the cylinder cover 4 and covers from the handling chamber 1 to the upper part of the straw removal device 30 at the rear. It is supported so that it can be opened and closed freely. The other end of the top plate cover 25 extends above the guide rail 17 to form an extension 25a, and its tip is further bent downward to form a bent portion 25b close to the upper edge of the rail cover 23. The upper part of the guide rail 17 is covered with an extending part 25a and a bent part 25b.

27 is a stay that connects the front and rear wall frames 2 and 3;
The top cover 25 is fixed by a fixture 28 that engages with the stay 27. When the fixture 28 is loosened and the top cover 25 is lifted to the position indicated by the chain line in FIG. 1, the upper part of the guide rail 17 is opened. An operation space 29 is obtained. Although not shown in the drawings, a stopper is provided to hold the top plate cover 25 at the position indicated by the chain line.

The present invention is constructed as described above, and when the stock end of the grain culm is sandwiched between the feed chain 16 and the guide rail 17 and the tip of the grain is fed into the handling chamber 1, the grain culm is transported rearward. The straw is threshed by the handling barrel 7, and the straw is transferred to the straw removal device 30 at the end of the feed chain 16, and discharged outside the machine.

In the above-mentioned operation, when cleaning the inside of the handling room 1, loosen the fixing fittings 28 and open the top cover 25 by lifting the upper part as shown by the chain line in FIG.
At the same time, if you want to remove grain culms that are caught or clogged between the feed chain 16 and the guide rail 17, operate the bolt 20 from the operation space 29 formed above between the rail cover 23 and the side wall 6 to remove the grain culm from the guide rail. 17 may be loosened or removed integrally with the rail base 18.

[Effect of idea]

In the present invention, a top plate cover 25 that covers the handling chamber 1 and the upper part of the guide rail 17, and a rail cover 23 that covers the front side of the guide rail 17 are separately formed in the bottom handling type threshing machine. By making it lightweight, the top plate cover 25 can be easily opened and closed, and since the bent portion 25b does not protrude downward for a long time, the upper part of the handling chamber 1 can be opened wide and the inside of the handling chamber 1 can be cleaned easily. It can be carried out. Furthermore, with the rail cover 23 still attached, the guide rail can be attached/detached or tightened/loosened from above by simply opening the top plate cover 25, making it possible to simultaneously remove and clean the blockage in the grain clamping and conveying section. It can be done easily.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which FIG. 1 is a front sectional view of a thresher, FIG. 2 is a side view thereof, and FIG. 3 is a partially sectional plan view. FIG. 4 is a rear sectional view of the main part, FIG. 5 is a perspective view of the guide rail attachment portion, and FIG. 6 is an explanatory diagram of the tachometer attachment portion. 1... Handling room, 10... Handling opening, 15... Grain culm clamping and conveying device, 16... Feed chain, 17... Guide rail, 18... Rail base, 23... Rail cover, 25... Top plate cover .

Claims (1)

[Scope of utility model registration request] A top plate cover 2 that covers the upper part of the handling chamber is used in an under-handling type threshing machine which is provided with an under-chain-type grain culm clamping and conveying device 15 in which a guide rail 17 is disposed oppositely above the feed chain 16 on the outside of the handling opening 10 and below.
5 and a rail cover 23 that covers the front surface of the guide rail 17 are separately formed, and the top plate cover 25 supports the side opposite to the guide rail 17 so as to be openable and closable. , the other end extends to the upper part of the guide rail 17, and the extended part covers the guide rail 17 from above, and when the top plate cover 25 is open, it is possible to cover the guide rail 17 from above between the rail cover 23 and the handling room side wall 6. A protective cover device for a thresher, characterized in that a guide rail 17 can be integrally attached to and detached from a rail base 18 or tightened or loosened by the following operations.