JPS6334506Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a bottom cover of the first gutter, etc., which allows the first gutter and the second gutter (hereinafter referred to as the first gutter, etc.) to be easily inspected and cleaned.

Generally, threshing machines alternately thresh rice, wheat, or other grains, but when switching between them, the previous grain must be removed. in this case,
Since a large amount of grain is stored in the first gutter, it is necessary to clean it, but the first gutter is usually located at the bottom of the machine, and there are screws etc. inside. This is the most difficult part to clean because it has a built-in unit. In particular, each part of a threshing machine mounted on a combine harvester was very narrow and cleaning was virtually impossible.

To address this issue, for example,
A known example is described in Publication No. 117963.

However, this is configured such that the bottom cover that opens and closes is pivotally attached to the gutter, and is rotated to open and close by operating a lever. For this reason,
Due to the mounting structure and restrictions on the mounting position, this bottom cover must be located in the immediate vicinity of the gutter and the screw conveyor for conveyance inside the gutter, and cannot be separated from these items by a large distance.

Therefore, the bottom cover naturally cannot be moved far away from the gutter and the screw conveyor, and this bottom cover poses an obstacle to cleaning the area around the bottom cover.
When cleaning the bottom of the conveyor, there is a problem in that the necessary working space is not sufficient.

Therefore, this invention was proposed to solve such problems.

Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

Figure 1 is a cross-sectional view showing the layout of a general threshing machine loaded on a combine harvester. Grain culm sent by feed chain 1 enters handling chamber 2 and is threshed by handling drum 3. Thereafter, the waste straw is sent to the cutter 5 by the waste straw chain 4, and is cut and discharged to the field. On the other hand, the threshed grains are dropped onto the sorting plate 8 from the drop-in port 7 of the grain-flowing plate 6 installed at the bottom of the handling room 2, and the first grains are separated by the sorting wind from the stream 9. The ear-cut grains and second grains having a light specific gravity fall into the second gutter 11. In addition, the third particle of dust etc. is sucked by the suction fan 12, and the third particle
is discharged into the field.

The grains that have fallen into the first gutter 10 and the second gutter 11 are transported to the rascense screws 14 and 15 installed respectively.
As a result, the first grain is returned to the lifting cylinder (not shown), and the second grain is returned to the handling chamber 2 by the return cylinder 16.

FIG. 2 is a cross-sectional view of the essential parts of a threshing machine having such a configuration and a bottom cover according to this invention applied.
The bottom covers 19 and 20, which are formed with holes 7 and 18 and can be opened and closed, are separated from the respective gutters 10 and 11 without being pivoted to them as in the conventional case, and are independent from each of these gutters. It is arranged and formed at the tips of the rotating arms 40 and 41 under the following conditions.

The pivot points 21, 22 of these rotating arms 40, 41 are connected to each of the gutter 10, 11 below the processed object sliding surface of the gutter 23 that connects the first gutter 10 and the second gutter 11, respectively. It is provided at a position shifted and separated from the transverse feed conveyance section by the helical screws 14 and 15.

Furthermore, each of these rotating arms 40, 41 and the lever 28 are connected by a link mechanism 29, and the rotating movement of this lever 28 causes the rotating arms 40, 41, and therefore the lever 28 provided thereon to Both bottom covers 19 and 20 are opened and closed. Note that the lever 28 is integrally provided with an operating arm 30.
is protruded from the bracket 25.
The shaft 31 is rotatably fitted to the shaft 31 supported by the shaft 31,
A pin 32 is formed on the other end side of the working arm 30, and an intermediate link 3 is rotatable around the pin 32.
3, a pin 34 is provided protruding from the other end of the intermediate link 33, and a pin 34 is formed at the end opposite to the plug portions 26, 27 of both bottom lids 19, 20. The elongated holes 35 and 36 are fitted together.

As described above, if the lever 28 is set in the position shown in FIG.
20 clockwise and counterclockwise, the plug part 2
6, 27 are in close contact with holes 17, 18, and both holes 17, 1
Both 8 and 8 are blocked, resulting in states C and D.

Next, when the lever 28 is rotated to the E position,
The operating arm 30 rotates to the position shown in FIG.
Both of the holes 17 and 18 are opened in the state (I) and (I). In this way, by the rotational movement of one lever 28, the bottom covers 19, 20 are moved to the respective holes 1 formed at the bottom of the first gutter 10 and the second gutter 11.
7 and 18 can be in the open state or in the closed state. In this case, the lever 28 is provided with an appropriate locking mechanism (not shown) so that it can be stopped in the E position, and the lever 28 is connected to the fixing member 37. By applying a spring 38 or the like between them and always elastically biasing the lever 28 in the direction A, when the locking mechanism is released, both bottom covers 19 and 20 are moved in the direction in which the holes 17 and 18 are closed. act on your own.

Since this embodiment has the structure and functions as described above, the following effects can be expected.

First, by opening the bottom lids 19 and 20, the grains remaining in the first gutter 10 and the second gutter 11 can be easily extracted, and different grains can be easily threshed. This switching cleaning work is performed using one lever 2.
8, this work is simple and can be done quickly.

In addition, grains can be extracted from the first gutter 10 and the second gutter 11 through holes 1 formed at the bottom of each.
7 and 18 are closed or opened, it is safe, and in particular, in the case of closure, the convex plug portions 26 and 27 enter into the holes 17 and 18, so the lid function is improved. is complete and no grains leak.

Furthermore, the opening and closing of the bottom covers 19 and 20 is performed by a link mechanism 2.
9, and the bottom cover 1 forming this link mechanism 29
9 and 20, the spring 3
8 and the link mechanism 29, the bottom lids 19, 20, which are in a worse closed state, move by themselves toward the holes 17, 18, thereby sealing them more completely. On the other hand, this means that the parts may have rough precision, which has various excellent effects such as being able to manufacture them at low cost.

According to this invention, as described above, the bottom covers 19 and 20 can be separated from the first gutter 10 and the second gutter 11 by rotating the rotary arm 4.
0, 41, and the pivoting fulcrums 21, 22 of these pivoting arms 40, 41,
Each of the gutter 1 below the processed material sliding surface of the gutter 23 that connects the first gutter 10 and the second gutter 11, respectively.
By providing the base lids 19, 20 at a position shifted and separated from the transverse conveyance section by the lattice screws 14, 15 of 0 and 11, when the respective bottom lids 19, 20 are opened, these bottom lids rotate the pivot points 21, 22. Since the center can be moved widely, the bottom cover can be easily cleaned, and the bottom of the screw screw is also opened wide at the bottom, making cleaning work easier.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a threshing machine loaded on a combine harvester, and FIG. 2 is a sectional view of the main parts of the threshing machine. Code, 10...First gutter, 11...Second gutter, 17
... hole, 18 ... hole, 19 ... bottom cover, 20 ... bottom cover, 28 ... lever, 29 ... link mechanism.

Claims (1)

[Claims for Utility Model Registration] 1 Hole 1 at the bottom of the first gutter 10 and the second gutter 11
Bottom covers 19 and 20 having holes 17 and 18 formed therein and capable of opening and closing the respective holes 17 and 18 are provided at the ends of the rotating arms 40 and 41 in such a manner that they can be separated from the respective gutter sides, respectively. , the pivot points 21, 2 of these pivot arms 40, 41
2, below the processed material sliding surface of the gutter 23 that connects the first gutter 10 and the second gutter 11, respectively,
The lassense screw 14 of each gutter 10, 11 above,
15, and each of these rotating arms 4
0, 41 and a lever 28 are connected by a link mechanism 29, and the two bottom covers 19, 20 are opened and closed by the rotational movement of the lever 28. 2. The bottom cover of a top gutter, etc., as set forth in claim 1, wherein the lever 28 is a monolever. 3 When the lever 28 is in the position where the bottom lids 19 and 20 are in the "open" state, it can be locked to a fixing member, etc., and by releasing this lock, the bottom lid 1 can be locked.
9 and 20 are elastically biased to be in a position where they are brought into a "closed" state. .