JPH0214364Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention has a structure that makes it easy to clean the threshing unit installed in combine harvesters, self-propelled self-pulling devices, etc. at the end of work or when it becomes clogged due to overload. It is related to. In particular, this makes it easier to clean out clogs on the oscillating sorting device above and below the crimp screen.

(b) Conventional technology Conventionally, in the threshing section, the technology to make it possible to take out the crimp net as an opening/closing lid on the feed chain side is disclosed in Japanese Utility Model Application Publication No. 59-50237 and Japanese Utility Model Application Publication No. 57-76450.
The technology disclosed in the above publication is well known, and the technology that made it possible to fold and take out the crimp net was disclosed in Japanese Patent Application Laid-Open No. 1986-
The technology described in Publication No. 5015 is publicly known, and the technology that allows the crimp net to be divided into two parts and taken out was also developed in the Showa era.
The techniques described in Japanese Patent Laid-open No. 57-76450 and Japanese Patent Application Laid-open No. 154918/1982 are known.

(c) Problems to be solved by the invention In this invention, the crimp mesh frame, which can be inserted and removed from the opening/closing lid side, does not bend because it is supported by guide rails at the front and rear ends, but If an excessive amount of grain culm flows in the grain culm, it will be pushed and bent by the handling cylinder and handling teeth, creating a gap at the connection with the machine, or the crimp net will warp and approach the swinging sorting device, causing adverse effects. This structure is designed to eliminate the bending of the central portion.

In particular, in the present invention, a plate-like locking piece is provided in the center of the mesh frame in the front-rear direction, and a slit-locking piece is provided on the machine side, and the plate-like locking piece is inserted into the slit hole. The bending at the center in the front-rear direction is eliminated.

In addition, a slit locking piece and a plate-shaped locking piece are provided, and these can be easily inserted by inserting and removing them along the guide rail of the crimp net, and after fitting, there is no looseness and it fits snugly, reducing the deflection of the net frame by 1 mm. I decided not to allow it. That is, the plate-shaped locking piece is a trapezoidal projecting piece, and when inserted, it is pointed and inserted into the wide part of the slit hole, and in the final inserted state, the trapezoidal base fits into the narrow part at both ends of the slit. , the two are designed to fit snugly together.

In addition, if the crimp mesh frame is divided into two parts for easy insertion and removal, the tip of the mesh frame to be inserted later should be inserted into the slit hole provided in the plate-shaped locking piece of the previous screen frame. A locking piece can be inserted.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

The feed chain 1 side of the threshing section is configured with an opening/closing lid B, and with the opening/closing lid B open, the crimp net frames 5 and 8 divided into left and right halves can be inserted and taken out sequentially. The front and rear ends of 5 and 8 are inserted along the arc-shaped guide rails 11 and 12, and the plate-shaped locking piece 7 provided at the front and rear center position of the opening/closing lid side vertical frame 25 of the crimp net frame 5 to be inserted first is inserted. ,
The plate-shaped locking piece 22 is insertable into the slit hole of the slit locking piece 9 fixed to the threshing part on the lower side of the crimp net frame, and is provided on the vertical frame 21 on the insertion end side of the crimp net frame 8 to be inserted later. It can be inserted into a slit hole formed in the plate-shaped locking piece 7.

Further, the shape of the plate-like locking piece is trapezoidal in plan view, and the slit hole of the slit locking piece is wide in the center and narrows toward both ends in side view.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Figure 1 is a front view of the threshing section of the present invention, Figure 2 is a front view of the opening/closing lid B being opened and crimp net frames 5 and 8 taken out, and Figure 3 is the crimp net frame on the machine side of the threshing unit. FIG. 4 is a perspective view of the crimp nets 5 and 8, FIG. 5 is a front view of the crimp net frame 5 starting to be inserted, and FIG. 6 is a perspective view showing the crimp net frame 5. Next, a front view of the state in which the crimp netting frame 8 has begun to be inserted, FIG. 7 is a drawing of the state in which the crimp netting frames 5 and 8 are inserted together, and FIG. 8 is a plate-like locking at the insertion tip of the crimp netting frame 5. A perspective view of the locking surface of the piece 6 and the slit locking piece 10, FIG. 9 is a perspective view after locking, FIG. 10 is a front sectional view of FIG. 9, and FIG.
The figure shows slit holes 10a, 1 of the slit locking piece 10.
12 is a bottom view showing the shape of 0b, and shows the plate-like locking piece 7 on the rear side of the crimp net frame 5, the slit locking piece 9 on the machine body side, and the plate-like locking piece at the insertion tip of the crimp net frame 8. A perspective view, FIG. 13 is a perspective view after the two are locked, FIG. 14 is a front sectional view of FIG. 13,
FIG. 15 is a side view of the slit hole, FIG. 16 is a perspective view of the rear end of the crimp mesh frame 8 showing the contact surface of the opening/closing lid and the clamping portion between the rear end support surface 13 of the guide rail before locking, and FIG. 17 18 is a perspective view after locking with the pin 15, and FIG. 18 is a front sectional view of FIG. 17.

This will be explained in order starting from FIGS. 1 and 2.

Handling teeth 3 are installed over the entire circumference and entire length of the handling barrel 2 and rotate, and thresh the tips of the grain culms that are held between the feed chain 1 and the straw holding table 4 and pass through. The grains after threshing are sorted by crimp nets 5 and 8 and fall onto a swing sorting device 26.

The lower end of the side wall on the feed chain 1 side is connected to the pivot shaft 2
7, and forms an opening/closing lid B that can be opened and closed by rotating the upper end. The straw presser 4 is configured to rotate together with the opening/closing lid B. In most conventional threshing sections, the crimp mesh frame is a single piece, but in order to be able to insert and remove it along the guide rail, if the arc is too long, it will hit the feed chain 1 or the side plate of the machine, so it is divided into two pieces. This makes insertion and removal easy.

As shown in FIG. 3, guide rails 11 and 12 for inserting the crimp net frames 5 and 8 are fixedly installed on the front and rear plates 11a and 12a of the threshing section on the machine side, and the crimp net frames 5 and 8 are inserted along the guide rails 11 and 12. It is inserted and removed. However, the center portions of the crimp mesh frames 5 and 8 will bend if there is no supporting portion, which will have an adverse effect on other parts.

In the present invention, the slit locking piece 10 is fixed to the machine body at the part where the insertion tip of the crimp net frame 5 contacts, and then the plate-like locking piece 7 at the end of the crimp net frame 5 on the opening/closing lid side is inserted. A slit locking piece 9 is provided on the body.

This part is the center of the crimp net, and if too many members are placed, it will clog the paddy and have a negative impact on sorting. Therefore, only this slit locking piece 7 is used, and the plate-shaped locking piece at the tip of the crimp net frame 8 is used. 6 is configured to be inserted into a slit hole provided in the plate-like locking piece 7 of the crimp mesh frame 5 in front. The opening/closing lid side end of the crimp mesh frame 8 is placed against the guide rail rear end support surfaces 13 and 14, and the pin holes of the pin locking pieces 17 and 18 are inserted into the pins 15 and 16.
Furthermore, the contact surface of the opening/closing lid B is pressed against this from above, and the pin locking pieces 17, 18 of the net frame 8 are held between them. The contact surface of the opening/closing lid B is also provided with insertion holes for pins 15 and 16. 19a, 19b, 20a, 20b
is the dust guide plate.

Next, referring to FIGS. 5, 6, and 7, a plate-shaped locking piece 6 is fixedly installed in the center of the vertical frame 24 at the insertion tip of the crimp net frame 5, and the vertical frame 24 at the end of the opening/closing lid side A plate-shaped locking piece 7 is fixed to the frame 25. The plate-like locking piece 7 is also provided with slit holes 7a and 7b for the plate-like locking piece 22 at the insertion tip of the crimp net frame 8. The vertical frame 21 at the insertion tip of the crimp mesh frame 8 has
A plate-like locking piece 22 is fixedly installed, and pin locking pieces 17 and 18 are fixedly installed on the vertical frame 18 at the end of the opening/closing lid. The slit locking piece 9 is fixedly installed across the front plate 11a and the rear plate 12a of the threshing section, and slit holes 9a and 9b are formed near the center thereof.

8, FIG. 9, FIG. 10, and FIG. 11 show a state in which the plate-like locking piece 6 at the tip of the crimp mesh frame 5 is inserted into the slit locking piece 10. The tip of the plate-like locking piece is shaped like a trapezoid in plan view by removing the corner and narrowing at the tip and gradually widening to form the slit hole 10.
10a and 10b are configured such that 10a is wide at the center and narrows towards both ends.

As a result, it is always inserted even if there is a slight play during insertion, and when it is pushed in completely, the plate-like locking piece and the slit hole are in perfect contact, and they are engaged without allowing even 1 mm of deflection. It is.

Figures 12, 13, 14, and 15 show the connection of the centers of the crimp net frames 5, 8 and the locking of the slit locking pieces 9 and the plate-shaped locking pieces 7, 22 to prevent bending. The section is shown in detail.

The plate-shaped locking piece 7 of the crimp net frame 5 itself also serves as a slit locking piece of the plate-shaped locking piece 22 of the net frame 8. The plate-like locking piece 7 has a longer protrusion length in the outer radial direction, and the plate-like locking piece 22 extends further from the plate-like locking piece 7.
It is configured to be inserted into the slit holes 7a and 7b from the rear surface. The plate-like locking pieces 7 and 22 have the same trapezoidal shape in plan view, and the slit holes 7a and 7b are wide at the center and become narrower at the ends 7b.

16, 17, and 18 show a method of fixing the crimp mesh frame 8 on the opening/closing lid side. That is, the rear end support surface 13 of the guide rail is
The pin locking pieces 17 and 18 provided on the opening/closing lid side of the crimp mesh frame 8 are inserted into the pin 15 and held between the two. . The pin 15 is also fitted into a hole in the contact surface of the opening/closing lid B. Therefore, once the opening/closing lid B is opened, the crimp mesh frame can be immediately pulled out without using a separate wrench or tools.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, because the plate-like locking piece and the slit locking piece are locked and connected at the front-rear center of the crimp net, the front-rear center of the crimp net frame, which is supported only in the vertical direction by the front and rear guide rails, is It can prevent bending. This eliminates the possibility of excessive grain culms being trapped and causing the crimp net to bend due to the rotation of the handling cylinder and handling teeth, which would adversely affect sorting.

Secondly, the slit hole is wide at the center and narrow at both ends, and the plate-like locking piece is trapezoidal, so it is easy to insert, and if you push it in after insertion, it will fit snugly into the narrow part and prevent play. There were also fewer people.

[Brief explanation of the drawing]

Figure 1 is a front view of the threshing section of the present invention, Figure 2 is a front view of the opening/closing lid B being opened and crimp net frames 5 and 8 taken out, and Figure 3 is the crimp net frame on the machine side of the threshing unit. FIG. 4 is a perspective view of the crimp nets 5 and 8, FIG. 5 is a front view of the crimp net frame 5 starting to be inserted, and FIG. 6 is a perspective view showing the crimp net frame 5. Next, the front view of the state where the crimp mesh frame 8 has started to be inserted, FIG. 7 is the crimp mesh frame 5, 8.
Figure 8 shows the state in which they are inserted together, the plate-like locking piece 6 at the insertion tip of the crimp mesh frame 5, and the slit locking piece 1.
0 is a perspective view before locking, FIG. 9 is a perspective view after locking, FIG. 10 is a front sectional view of FIG. 9, and FIG.
FIG. 12 is a bottom view showing the shape of b, and shows the plate-like locking piece 7 on the rear side of the crimp net frame 5, the slit locking piece 9 on the body side, and the plate-like locking piece at the insertion tip of the crimp net frame 8. 13 is a perspective view after the two are locked, FIG. 14 is a front sectional view of FIG. 13, FIG. 15 is a side view of the slit hole, and FIG. 16 is a view of the crimp mesh frame 8. A perspective view before locking showing the abutment surface of the opening/closing lid at the rear end and a clamping part by the guide rail rear end support surface 13, FIG. 17 is a perspective view after locking by the pin 15,
FIG. 18 is a front sectional view of FIG. 17. B...Opening/closing lid, 1...Feed chain, 5,
8... Crimp net frame, 6, 7, 22... Plate-shaped locking piece, 9, 10... Slit locking piece, 9a, 9b,
7a, 7b...slit hole, 21, 25...vertical frame.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The feed chain 1 side of the threshing section is constructed with an open/close lid B, and with this open/close lid B open, crimp mesh frames 5 and 8 divided into left and right halves are sequentially inserted.・In the structure that can be taken out freely, the crimp mesh frame 5,
The front and rear ends of 8 are arcuate guide rails 11, 12.
Crimp mesh frame 5 to be inserted along and inserted first
A plate-shaped locking piece 7 provided at the front and back center position of the opening/closing lid side vertical frame 25 can be inserted into a slit hole of a slit locking piece 9 fixed to the threshing part on the lower side of the crimp mesh frame, and is inserted later. A crimp net device for a threshing section characterized in that a plate-shaped locking piece 22 provided on a vertical frame 21 on the insertion end side of the crimp net frame 8 can be inserted into a slit hole formed in the plate-shaped locking piece 7. . (2) The shape of the plate-like locking piece described in claim 1 of the utility model registration claim is trapezoidal in plan view, and the slit hole of the slit locking piece is wide at the center and gradually increasing in width toward both ends when viewed from the side. A crimp net device for a threshing section characterized by having a narrow shape.