JPH0331Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used for a top plate opening/closing device in a threshing machine.

[Prior art]

Conventionally, in under-chain type threshing machines, a chain rail installed above the outside of the handling chamber is integrally connected to the top plate of the handling chamber, which can be opened and closed up and down using the side opposite to the handling opening as a fulcrum. It is known that maintenance such as cleaning of the handling room and feed chain part can be easily performed.

[Problems that ideas are trying to solve]

However, with conventional systems in which the chain rail is opened and closed integrally with the top plate, maintenance is easy, but the upward force applied to the chain rail during grain culm feeding and transfer places a load on the top plate. There was a defect that caused the product to become deformed or damaged.

The technical problem of this invention is to integrally connect the chain rail and the top plate so that the chain rail can be opened and closed together with the top plate, and to absorb the upward load of the chain rail in the machine frame so that it is not applied to the top plate itself. The goal is to reduce the load.

[Means for solving problems]

The top plate opening/closing device for a threshing machine according to the present invention, which was devised to solve the above problems, is as follows.

Chain rail 10 provided outside and below the handling port 5
In an under-chain type thresher, which is integrally connected to the top plate 7 of the handling chamber 1 which can be opened and closed up and down using the side opposite to the handling opening 5 as a fulcrum 6,
The inlet side plate 2 of the handling chamber 1 and the outlet side of the outlet side plate 3 are connected by a horizontal stay 12, while a support member 15 for supporting a chain rail 10 is provided on the handling outlet side of the top plate 7, and the above-mentioned horizontal A stopper 18 that engages and disengages from the stay 12 to fix and release the top plate in the closed state is attached, and a stopper that allows the lower end 15b of the inner part of the support member 15 to come into contact when the top plate is closed. 12a is provided on the horizontal stay 12.

[Effect]

When threshing, the top plate 7 is closed and engaged with the horizontal stay 12 of the locking tool 18. Then, a moment centered on the horizontal stay 12 is applied to the support member 15 due to the upward load applied to the chain rail 10 by the supplied grain culm, but this moment is received by the stopper 12 provided on the horizontal stay 12,
No load is applied to the top plate 7.

When cleaning handling room 1 and feed chain 8,
When the handle 18b provided on the locking tool 18 is pulled upward, the chain rail 10 is opened upward together with the top plate 7.

〔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, in which a handling barrel 4 is rotatably supported between an entrance side plate 2 and an outlet side plate 3 provided before and after the handling chamber. There is an entrance side plate 2 on one side of the handling room 1.
A handling port 5 is provided to connect the grain culm supply port 2a and the grain culm discharge port 3a provided on the outlet side plate 3, and in the upper part of the handling chamber 1, the grain culm supply port 2a and the grain culm discharge port 3a provided on the outlet side plate 3 are connected. A top plate 7 that can be opened and closed is provided.

An under-chain type grain culm transfer device is provided outside the handling port 5, and 8 is a feed chain supported by a chain frame 9 that connects the inlet side plate 2 and the outlet side plate 3 below the handling port. A chain rail 10 is provided oppositely above the feed chain 8, and the stock part of the grain culm supplied from the grain culm supply port 2a is connected to the feed chain 8 and the chain rail 10.
The grain tip portion is threshed by a handling cylinder 4 and discharged from a grain culm discharge port 3a.

12 is a horizontal stay that connects the upper part of the inlet side plate 2 and the outlet side plate 3 on the handling port side, and 13 is a U-shaped pipe that connects the upper part of the outlet side plate 3 on the handling port side and the terminal end of the chain frame 9. The strength of the upper part of the machine frame on the handling port side is strengthened by the horizontal stay 12 and the U-shaped pipe 13.

Reference numeral 15 denotes a gate-shaped support member whose base is fixed to and suspended from the handling opening side of the top plate, and a rail base 16 having an L-shaped cross section is fixed via a rod-shaped frame 15a attached to the lower end of the support member. The chain rail 10 is supported by the rail base 16 so as to be movable up and down.

A spring 17 is provided between the rail base 16 and the chain rail 10, and urges the chain rail 10 toward the feed chain 8.

The horizontal stay 12 is located inward from the frame 15a, the rail base 16, the chain rail 10, etc., and is configured so as not to get in the way when the chain rail 10 is rotated open and closed integrally with the top plate 7.

Reference numeral 18 denotes a locking device which is pivotally supported on the support member 15 in a vertically rotatable manner so that a lower hook portion 18a can be freely engaged with and detached from the horizontal stay 12, and a handle 18b attached to this is attached to the top plate 7. hole window 7a provided in
It protrudes outward from the.

When the top plate 7 is closed, the upper end of the notch 15c provided in the support member 15 comes into contact with the horizontal stay 12, and the lower end 15b of the support member 15 is fixed to the horizontal stay 12. 12a, and when the handle 18b is lowered, the hook portion 18a engages with the horizontal stay 12.

A spring 19 is provided between the locking tool 18 and the rod-shaped frame 15a, and the spring 19 biases the locking tool 18 in the locking direction.

Reference numeral 20 denotes a stopper that restricts the range in which the locking tool 18 can be rotated up and down.

A holder 21 is made of an elastic material and is attached to the machine frame to hold the rail base 16, and its position can be adjusted up and down.

The present invention is constructed as described above, and when threshing, the top plate 7 is closed and the hook portion 18a of the locking tool 18 is engaged with the horizontal stay 12.

When the stock end of the grain culm is thus held between the feed chain 8 and the chain rail 10 and transferred rearward, the grain culm is threshed in the handling chamber 1 and then discharged from the grain culm discharge port 3a.

At this time, the chain rail 10 is moved upward by the clamping grain culm, and the spring 17 is pressed. As a result, the support member 15 receives a force that pushes it upward via the rail base 16 and the frame 15a.
Since the supporting member 15 is supported by the horizontal stay 12 located inwardly from the frame 15a via the locking tool 18, a moment centered on the horizontal stay 12 acts on the supporting member 15, and the entire structure is as shown in FIG. attempts to rotate in arrow direction A (counterclockwise). However, the lower end 15b of the support member 15 inward of the horizontal stay 12 can come into contact with the stopper 12a, and in this case, the rotation of the support member 15 is reliably and firmly prevented by the contact between the two, and therefore, grain culm supply;
The force that tries to push up the top plate 7 during transportation is reliably absorbed by the horizontal stays 12 and does not affect the top plate 7 itself, so even if the top plate itself is made of a thin material, it will not deform. It can withstand long-term use without becoming damaged.

Next, when cleaning the inside of the handling chamber 1 and the feed chain 8 section, pull up the handle 18b against the spring 19, release the hook part 18a of the locking tool 18 from the horizontal stay 12, and then pull up the handle 18b again to engage it. The top plate 7 opens upward with one end of the stopper 18 hooked on the stopper 20.

At that time, the chain rail 10, rail base 16, etc. are opened together with the top plate 7, and there is no need to remove them one by one, so cleaning can be performed quickly.

When closing the top plate 7, when the top plate 7 is lowered, the locking tool 18 is moved to the horizontal stay 1 by the action of the spring 19.
2 and the top plate 7 is fixed.

[Effect of idea]

In the present invention, the chain rail 10 and the top plate 7 are integrally connected so that both can be opened and closed at the same time, making it easy to clean the handling room 1 and the 8 parts of the feed chain, and it is easy to maintain. In addition, the horizontal stay 12 fixed to the strong machine frame absorbs the moment about the horizontal stay 12 related to the support member 15 due to the upward load of the chain rail 10 during grain culm feeding and transfer, and the top plate itself receives the above load. By preventing the top plate 7 from being exposed to the elements, the top plate 7 can withstand long-term use without being deformed or damaged even if it is made of a thin member.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which FIG. 1 is a side sectional view of the main parts of a threshing machine, and FIG. 2 is a perspective view thereof. 6...Fully point, 7...Top plate, 10...Chain rail, 12...Horizontal stay, 12a...Stopper,
15... Support member, 18... Locking tool.

Claims (1)

[Scope of utility model registration request] Chain rail 10 provided outside and below the handling port 5
In an under-chain type threshing machine, which is integrally connected to the top plate 7 of the handling chamber 1 which can be opened and closed up and down using the side opposite to the handling opening 5 as a fulcrum 6,
The inlet side plate 2 of the handling chamber 1 and the outlet side of the outlet side plate 3 are connected by a horizontal stay 12, while a support member 15 for supporting a chain rail 10 is provided on the handling outlet side of the top plate 7, and the above-mentioned horizontal A stopper 18 is attached to the stay 12 to fix and release the closed state of the top plate, and a stopper 18 that can be brought into contact with the lower end 15b of the support member 15 inward from the horizontal stay 12 when the top plate is closed. 12a is provided on the horizontal stay 12. A top plate opening/closing device for a thresher.