JPH0441809Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention is based on a method in which an arc-shaped catch net placed under the handling barrel is moved along the circumferential direction of the arc through a guide body provided inside the handling chamber. The present invention relates to a receiving net structure of a thresher that is configured to be insertable and removable.

[Conventional technology]

In recent years, as a mounting structure for the receiving net in a threshing device, a semi-cylindrical structure has been used as shown in Fig. 8 in order to separate the receiving net and the receiving net support frame and to make it possible to replace only the receiving net. A structure is used in which the receiving net support frame is fixed to the wall of the threshing chamber, and the receiving net 16 is slidably inserted into and removed from the upper part of the handling chamber of the threshing device along guide bodies 9a and 9b. However, with this structure, when inserting/extracting a large semi-cylindrical receiving net 16 that covers approximately half of the outer circumferential surface of the handling cylinder from, for example, the upper part of the handling chamber, it is difficult to start insertion. When the net is inserted or removed, the rear end in the direction of insertion of the net comes into contact with the upper part of the handling chamber at a position opposite to the vicinity of the net insertion opening in the upper part of the handling chamber, making it difficult to insert and remove the net. Ta.

For this reason, in the past, the above-mentioned receiving net was divided into a plurality of parts in the direction of insertion, and the device was devised so that each small receiving net part could be inserted and extracted (see, for example, Japanese Utility Model Application Publication No. 171143/1983). .

As mentioned above, with a structure that allows the receiving net to be separated into multiple parts in the insertion direction, it is of course more difficult to separate the divided receiving net parts than with the large semi-cylindrical undivided one described above. Compared to those with a refractably pivoted structure, the handling unit is smaller and lighter, and there is no need to operate the large receiving net in a narrow space while being careful not to contact other objects. This is advantageous in that it can be easily inserted into and removed from the net support frame, but on the other hand, the strength of the net decreases at the split points in the assembled state, so the structure to reinforce this is on the side of the net support frame. This is what is required.

In order to strengthen this, in the conventional structure, plate-shaped guide bodies are welded to the front and rear walls of the clover chamber, and the receiving net is placed on the guide bodies.

[Problem to be solved by the invention] However, in the case where the plate-shaped guide body is welded to the wall of the trapping room as described above, the guide body that slidably guides the catch net through the periphery or divided part of the catch net is difficult. There was a problem that the objects to be treated were deposited on the top, making it difficult to slide the receiving net smoothly.

The purpose of this invention is to reduce the strength of the receiving net and to make the slide operation smoother when adopting a structure in which the receiving net is divided so that the above-mentioned slide-insertion type receiving net can be easily inserted and removed. It is in.

[Means to solve the problem]

The technical means of the present invention for solving the above problems consists of an arc-shaped receiving net placed under the handling cylinder, and a receiving net support frame that guides and supports the receiving net so that it can be inserted and removed along the circumferential direction of the circular arc. A receiving net structure for a threshing device comprising the following configurations [A] to [D] is provided.

[B] The receiving net is divided into a plurality of parts in the receiving net insertion direction, and is configured to have a locking pin along the receiving net insertion direction and to be able to be engaged with the locking pin in the receiving net insertion direction. Constituent members of the pin engaging portion constituted by the locking hole are provided on the insertion tip side, the divided portion, and the rear end portion, respectively.

[B] The receiving net support frame includes an arc-shaped peripheral frame along the insertion direction of the receiving net, a leading end frame facing the leading end side in the insertion direction of the receiving net, and a rear end frame facing the rear end side in the insertion direction. It is composed of a rectangular frame member formed into a short shape, and a round bar-shaped guide body disposed on the inner side of the rectangle along the circumferential frame portion of the rectangular frame member.

[C] The rectangular frame member has a pin engaging portion configuration on the receiving net side, respectively, at a leading end frame portion facing the leading end in the receiving net insertion direction and a rear end frame portion facing the rear end. It includes a pin engaging portion component that pairs with the member.

[d] The guide body is arranged such that the round rod-shaped member is arranged in a range extending in the insertion direction from the front and back of the divided portion of the receiving net in the inserted state, and with a small interval between it and the rectangular inner side surface of the peripheral frame. In addition, the round bar-shaped portions are fixed to the circumferential frame at a plurality of locations at predetermined intervals in the circumferential direction of the circumferential frame.

[Effect]

By taking the above technical measures, the following effects can be obtained.

a) The receiving net can be separated at the divided portions, and the divided small receiving net portions can be inserted or removed one by one into the handling room as a unit. Therefore,
It is light and easy to handle, and even if there is a slight difference in curvature from the arc-shaped surrounding frame, the circumferential length is short, so it is easy to insert and remove it while keeping it almost matched. .

b Since each small unit of the receiving net is connected by a pin engagement consisting of a combination of a locking pin and a locking hole along the insertion/extraction direction, installation and disassembly of the receiving net is a simple process for each receiving net. It can be easily done by simply inserting and removing the mesh part.

c. The guide body is composed of a round bar-shaped member, and has a shape that makes it difficult for threshing products to accumulate on its upper surface, and there is a gap between the round bar-shaped member that constitutes the guide body and the rectangular inner surface of the peripheral frame. This combined with the fact that a small interval is formed between the guide members and the structure allows deposits to easily fall, makes it easy to avoid deposits from forming on the upper surface side of the guide body.

[Effect of idea]

B Due to the effects of a and b above, there is an advantage that the receiving net can be easily and easily inserted and removed.

(b) From the effect of c above, the disadvantages caused by the formation of a large amount of deposits on the guide body, that is, the resistance to the sliding operation of the receiving net and the occurrence of twisting, are suppressed as much as possible, and the sliding operation of the receiving net is easier to perform. There is.

〔Example〕

Hereinafter, a threshing device which is an embodiment of the present invention will be described based on the drawings.

The entire threshing device is constructed as follows.
In other words, as shown in Figure 7, feed chain 1
The harvested grain culm, which is held and conveyed in a sideways position by the threshing machine, is threshed in a handling chamber 15 within the threshing device by a handling cylinder 3 that is drivably suspended horizontally. Threshed paddy and relatively small straw waste leak through the receiving net 16 placed below the handling barrel 3, fall onto the grain pan 21 installed on the lower swinging sorting frame 17, and are shaken by the grain pan 21. The paddy is sent to the grain sieve 22 on the lower side while being sorted by specific gravity by the operation, and on the grain sieve 22, by the shaking operation and the air blowing action from the winnower 20, the paddy leaks and is collected in the first grain collection section 18. and,
Objects with branches and the like collected in the second object collecting section 19 are sent by a thrower 10 of a flipping type to a processing chamber 11 arranged in parallel with the handling chamber 15 shown in FIG. 2, and are recycled by a processing cylinder 23. It is threshed.

Next, the structure of the receiving net 16 will be described in detail.
As shown in the figure, a pair of arcuate front mesh frames 2a,
The crimp nets 4, 4 are stretched over the rear net frame 2b, and the locking holes 5 provided at the rear end of the front net frame 2a are inserted as shown in the figure.
A locking pin 6 provided at the front end of the rear catch net frame 2b is engaged with the catch net frame 2b, and the net is used as a set of arcuate catch nets 16. This receiving net 16 is provided with locks on the receiving net support frame A side along the receiving net insertion direction at each of its insertion tip side and rear end, in addition to the dividing point in the middle in the receiving net insertion direction. A component of a pin engaging portion is provided, which is constituted by locking holes 13 and 24 that are configured to be able to be engaged with the pins 12 and 25 in the receiving net insertion direction.

The support structure for the receiving net 16 on the side of the handling room 15 is configured as follows.

As shown in FIGS. 2 to 4, a receiving net support frame A is fixed to the front and rear walls of the handling chamber 15 for guiding and supporting the receiving net 16 so as to be insertable and removable along the circular arc circumferential direction.

This receiving net support frame A has circular arc-shaped peripheral frames 8C and 8D along the insertion direction of the receiving net 16, a tip frame 8A facing the leading end side of the receiving net 16 in the insertion direction, and a tip frame 8A facing the rear end side in the insertion direction. A rectangular frame member 7 formed into a short shape with a rear end frame 8B, and the peripheral frame 8 of this rectangular frame member 7.
It is composed of round rod-shaped guide bodies 9a and 9b arranged along the C and 8D portions on the inside of the rectangle.

The rectangular frame member 7 has a pin engagement on the side of the receiving net 16 in a front end frame 8A portion facing the leading end in the receiving net 16 insertion direction and a rear end frame 8B portion facing the rear end. It includes a pin-engaging part constituent member that pairs with the part constituent member.

The guide bodies 9a, 9b move the round rod-shaped member in a range extending back and forth in the insertion direction of the divided portion of the receiving net 16 in the inserted state, and with a small space between the rectangular inner side surfaces of the peripheral frames 8C, 8D. They are arranged at intervals S, and the round bar members are fixed to the circumferential frames 8C, 8D at a plurality of locations at predetermined intervals in the circumferential direction of the circumferential frames 8C, 8D.

To assemble the receiving net 16, first, the front receiving net frame 2a is attached to the guide bodies 9a, 9 as shown in FIGS.
The locking pins 12 provided near the front ends of the guide bodies 9a and 9b are engaged with the locking holes 13 provided at the front end of the front screen frame 2a, and the front screen frame 2a is inserted.
positioning. Then, the above-mentioned post-receiving net frame 2b is placed on the guide bodies 9a, 9b and inserted,
It engages the locking hole 5 at the rear end of the front mesh frame 2a, which has already been inserted into the locking pin 6 provided at the front end of the rear mesh frame 2b, and also engages in the locking hole 5 at the rear end of the front mesh frame 2a. A locking pin 25 provided on a frame 26 installed on the back surface of the handling chamber 15 is inserted into the locking hole 24, thereby positioning both the rear screen frame 2b and the front screen frame 2a.

Next, to explain in detail the fixing structure of the receiving net 16, as shown in FIG. The rear end portion of the rear net frame 2b, which is supported pivotably and inserted and loaded as described above, is pressed and held on the frame 26 by the tool rest 27. At this time, as shown in FIG. A lock pin 29, which is biased toward the protruding side by a spring 28 at one end of the base 27, is inserted into a fixing hole 26a provided on the side surface of the frame 26, thereby fixing the tool rest 27.

To remove the receiving net 16, the lock pin 29 described above is removed from the fixing hole 26a, and the tool rest 27 is swung around the horizontal axis P1 as shown in FIG. Once inserted, the operator can safely pull out the rear net frame 2b and the front net frame 2a without touching the cutter 27b.

[Brief explanation of the drawing]

The drawings show an embodiment of the receiving net structure of the threshing device according to the present invention, FIG. 1 is an overall perspective view of the receiving net, FIG. 2 is an overall perspective view of the threshing device, and FIG. 3 is a perspective view of the receiving net in the threshing device. 4 is a vertical cross-sectional side view showing the inserted and loaded state, FIG. 4 is a view taken from the direction of A-A in FIG. 3, FIG. 5 is a side view of the vicinity of the tool rest, and FIG. 6 is a view of the tool rest. FIG. 7 is a front view of the vicinity of the lock pin, FIG. 7 is a side view of the entire threshing device, and FIG. 8 is a side view showing a state in which a conventional receiving net is inserted. 3... Handling cylinder, 5, 13, 24... Locking hole, 6,
12, 25... Locking pin, 7... Rectangular frame member, 8
A...Tip frame, 8B...Rear end frame, 8C, 8D...
Peripheral frame, 9a, 9b...guide body, 15...handling room,
16... Receiving net, A... Receiving net support frame.

Claims (1)

[Claims for Utility Model Registration] 1. Arc-shaped receiving net 16 disposed below the handling cylinder 3
and a receiving net support frame A that guides and supports the receiving net 16 so as to be insertable and removable along the circumferential direction of a circular arc, and has the configuration described in [A] to [D] below. structure. [B] The receiving net 16 is divided into a plurality of parts in the receiving net insertion direction, and has locking pins 6, 12, 25 along the receiving net insertion direction, and The component of the pin engaging part, which is composed of the locking holes 5, 13, and 24 configured to be able to be inserted in the receiving net insertion direction, is connected to the insertion tip side, the divided part, and the rear end part. Each one has one. [B] The receiving net support frame A includes arc-shaped peripheral frames 8C and 8D along the insertion direction of the receiving net 16, and a tip frame 8A facing the leading end side in the insertion direction of the receiving net 16.
and a rear end frame 8B facing the rear end side in the insertion direction, and a rectangular frame member 7 formed in a rectangular shape with It is composed of round rod-shaped guide bodies 9a and 9b arranged therein. [C] The rectangular frame member 7 includes a tip frame 8A portion that faces the tip of the receiving net 16 in the insertion direction;
Each of the rear end frame 8B portions facing the rear end portion is provided with a pin engaging portion forming member that pairs with the pin engaging portion forming member on the receiving net 16 side. [D] The guide bodies 9a and 9b extend the round rod-shaped member in a range extending back and forth in the insertion direction of the divided portion of the receiving net 16 in the inserted state, and in the direction of the insertion direction.
The round rod-shaped members are placed at a plurality of locations at predetermined intervals in the arcuate circumferential direction of the peripheral frames 8C and 8D. It is configured to be fixed to the peripheral frames 8C and 8D. 2. A receiving net structure for a threshing device according to claim 1, wherein the divided receiving net portions of the receiving net 16 are configured to be independently insertable and removable.