JPH0547567Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a receiving net attachment/detachment device for a threshing machine for threshing agricultural crops.

(B) Prior art Only the center of the side of the receiving net in the handling room is supported by an F-shaped support plate to prevent the receiving net from deflecting at the central position in the front-rear direction, and the receiving net is swung downward. Threshing machines that support the sorting body, and stationary threshing machines in which the sides of the receiving net frame are supported by U-shaped receivers and the oscillating sorting body is not supported below the receiving net are already known. .

(c) Problems to be solved by the invention In the former known threshing machine, the outer part of the receiving net faces inward from the side edge of the oscillating sorting body, so there is no leakage in the receiving net. If the area under the net is narrow and the leakage performance is low, and if you try to improve the leakage performance by extending the receiving net to the side edge of the swinging sorter, the thresher that leaked from the side of the receiving net will be shaken. There is a drawback that leakage occurs between the dynamic sorting body and the side wall, and in addition, the sides of the receiving net are only supported by support plates whose front and rear lengths are extremely short, so when the amount of grain threshing is large, , the support of the receiving net became unstable and the receiving net separated from the handling drum, resulting in a decrease in threshing performance.

In addition, since the latter is a stationary type, it does not have a swinging sorter, so this threshing machine is applied to a type of threshing machine that has a swinging sorter, and in order to expand the leakage area of the receiving net. If the receiving net is extended laterally, the threshed grains leaking from the sides of the receiving net will leak between the oscillating sorter and the side wall, as in the former case.

(d) Means for solving the problem The present invention is based on the above-mentioned method, in which a handling cylinder is installed inside and mounted on a shaft, both sides of the receiving net are removably attached, and a swing sorting body is installed below the receiving net. In a threshing machine in which the side portion of the receiving net extends laterally to approximately directly above the swinging sorter, a receiver for receiving one side of the receiving net extends approximately the entire length of the receiving net, and a mesh frame is provided. The above-mentioned problem can be solved by constructing a single plate consisting of a step part supporting the step part, and an inclined guide plate protruding from inside the full length of the step part so as to cover the upper part of the side edge of the swing sorting body. Settled.

(e) Operation When the receiving net is inserted from one side of the handling chamber, the preceding net frame engages with the stepped portion of the receiving frame, so the other side is locked and fixed with an appropriate fastener.

Moreover, when removing the receiving net, the above-mentioned fastening device is released and the receiving net is pulled out.

During the threshing process, the handling teeth of the handling cylinder process a large amount of threshed grain generated in the handling chamber while rotating at high speed, so the receiving net receives a large pressing force, but the side of the net frame of the receiving net is guided by an inclined guide. It is held by the step part of a strong support that is integrated with the plate.

In addition, while the grains threshed in the handling chamber leak in different directions from the entire surface of the receiving net, the swinging sorter is supported so that it swings while being displaced back and forth and up and down. If a gap is created between the outer surface and the inner surface of the machine wall, the inclined guide plate hangs down from the receiver and its lower end covers the upper side edge of the swinging sorter, so that it can be removed from the gap. The entire amount can be recovered without flowing down to the outside of the oscillating sorter.

(F) Example An example of the present invention will be explained with reference to the drawings.
This threshing machine is mounted on a machine such as a combine harvester or a harvester, and although not shown, it has a supply port 2 on one side of a handling chamber 1 and a discharge port on the other side, just like conventional ones. , a feed chain and a clamping rail are installed along the handling port 4, and the handling chamber 1 is equipped with a handling cylinder 1a that is pivoted between the front and rear walls, and the handling chamber cover is screwed on the back side. It can be opened and closed by
A swinging sorting body 5 is installed in a sorting air passage extending from below the receiving net 3 to the dust sorting room so as to swing back and forth.

Next, the attachment device for the receiving net 3 will be explained. The receiving net 3 is constructed by fixing a crimp net to a net frame 6, and holes 7, 7 bored in the upper part of the back side of the net frame 6 are connected to the receiving net 3. A pin 10 protruding from the frame 8,
10 and welded onto the frame 8
By rotating the lever 11a pivoted on the letter-shaped bracket 9 downward and overlapping the receiving plate 11 integral with it with the inner surface, the upper part is removably fixed, and the lower frame of the net frame 6 has a cross section. A pair of holes 1 in a U-shape
2, 12, and these holes 12, 12 are connected to the receiver 1.
3 and the holes 12, 12.
A fixing nut 15 fixed to the inner surface of the receiver 13,
15 and is supported in a positioned state, and the receiver 13 integrally includes an inclined guide plate 16 that faces from the inner end of the stepped portion 14 onto the upwardly expanded portion 5a of the side plate of the swing sorting body 5. A cleaning lid 18 attached to a cleaning opening 17 below the handling opening 4 is screwed with bolts 19, 19 and the fixing nuts 15, 15.

Further, the cleaning lid 18 is bent so that the cross section is doglegged, the upper part serves as the peripheral wall of the handling chamber 1, and the lower end is screwed to the lower mouth edge 17a of the cleaning opening 17 so as to be openable and closable. A receiving piece 20 protruding from the outer surface of the upper part is locked by a rotatable locking lever 21, and a sliding plate connected to the side wall 22 is provided directly below the part of the cleaning lid 18 where the receiving plate 13 is attached. A moving receiving plate 23 is fixed, and a rubber plate 25 attached to the expanded portion of the swinging sorting body 5 is in sliding contact with the sliding receiving plate 23.
The other rubber plate 25 slides directly on the side wall 22.

When installing the receiving net 3, the handling chamber cover is opened and the receiving net 3 is inserted from above.In the lower part of the handling chamber 1, there is a guide frame 26 with a U-shaped cross section fixed to the front and rear walls. , 26 are provided as shown by chain lines in FIG. 1 and solid lines in FIG. is engaged on the stepped portion 14 of the receiver 1.
3 is not only L-shaped, but also integrated with the inclined guide plate, which increases the strength, and the receiving net 3
firmly supports the lower end of the mesh frame 6 even though it is subjected to an extremely large pressing force during the threshing process.

In this state, when the upper holes 7, 7 are fitted with the pins 10, 10 and the lever 11a is rotated downward, the receiving plate 1
1 is superposed on the inner surface of the mesh frame 6.

When cleaning and maintaining the handling chamber 1 or the receiving net 3, open the handling chamber cover, rotate the lever 10a upward, pull out the receiving net 3 upward, and press the lever 21 located below the handling opening 4. Rotate the cleaning lid 18 upwards.
When the cleaning port 17 is rotated outward as shown by the chain line in FIG. 1, the cleaning port 17 is opened, so that the handling chamber 1 can be cleaned or inspected from above and from the cleaning port.

Furthermore, during the threshing process, the receiving net 3 bends outward due to processing pressure, but the midway portion thereof is caught by the stopper 27, so that normal threshing process can be performed, and the swinging sorter 5 is not allowed to swing. Since the rubber plate 25 is displaced back and forth and up and down during movement, the rubber plate 25 may be separated from the sliding receiving plate 23. A rubber plate 2 fixed to the side edge of the oscillating sorter 5 receives the dropped grains.
The grains are guided downward into the oscillating sorting body 5 through the top of the grains 5, so that the grains can be reliably collected.

(G) Effects of the invention This invention is based on a shaft rack with the handling cylinder 1a inside, and a receiving net 3.
In a threshing machine, both sides of the receiving net 3 are detachably attached, a swinging sorting body 5 is installed below the receiving net 3, and a side part of the receiving net 3 is extended laterally to approximately directly above the swinging sorting body. , a step part 14 for supporting the net frame 6 and a step part 14 for supporting the net frame 6, and a step part 14 for supporting one side of the receiving net 3 over substantially the entire length of the receiving net 3; Since it is composed of a single plate consisting of an inclined guide plate 16 that protrudes to cover the upper side edge of the body 5,
The receiver 13 supports the receiver net 3 in a manner that allows it to be easily engaged and detached, and is also integrated with the inclined guide plate 16 to firmly support it.
Since it hangs down integrally from the net and faces the oscillating sorting body 5, it also catches grains leaking outward from the sides of the receiving net 3 and guides them into the oscillating sorting body 5. As a result, the grains can be reliably prevented from flowing out of the machine from between the swing sorting body 5 and the side wall 22.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a cross-sectional view of the threshing machine with some parts omitted;
The figure is an exploded perspective view of the main parts, and Figure 3 is A-A of Figure 1.
FIG. 1... handling room, 3... receiving net, 5... rocking sorter,
6... Net frame, 13... Receipt, 14... Stepped section, 16
... Slanted guide plate, 18 ... Cleaning lid.

Claims (1)

[Scope of utility model registration request] A handling cylinder 1a is installed inside and mounted on a shaft, and both sides of the receiving net 3 are removably attached, and a swing sorting body 5 is placed below the receiving net 3.
In a threshing machine in which a side part of the receiving net 3 is extended laterally to approximately directly above the swing sorting body 5, a receiver 13 that receives one side of the receiving net 3 is attached to the receiving net 3. The stepped portion 14 extends approximately the entire length of the screen frame 6 and supports the mesh frame 6.
and the swing sorting body 5 from inside the entire length of the stepped portion 14.
an inclined guide plate 1 that protrudes to cover the upper part of the side edge of the
6. A receiving net attachment/detachment device for a threshing machine, characterized in that it is constructed of a single plate consisting of 6.