JPH0437404Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a threshing machine for threshing and sorting grain culms.

(b) Prior Art Conventionally, it has been known from Utility Model Application Publication No. 53-28178 that when repairing the oscillating sorting body of a threshing machine or performing maintenance and inspection on the interior of the sorting section connected to the handling room, the oscillating sorting body must be removed. It is being

(c) Problems that the invention aims to solve Generally, a swinging sorting body is equipped with a transfer section, a first sorting section, a second sorting section, etc., so it is heavy and the removal or installation work is laborious. It was hot.

In particular, in a threshing machine mounted on a large combine harvester, the swing sorting body weighs over 50 kg and is long from front to back, making it extremely difficult for one person to take it out or insert it.

(d) Means for solving the problem The present invention is a threshing machine in which a swinging sorting body is installed with a swinging arm in a sorting air passage extending from the bottom to the rear of the handling room, and a dust exhaust port is provided at the rear. , the dust exhaust port is opened to the extent that the swinging sorting body can go in and out, the swinging sorting body is removably attached to the swinging arm, a swinging lever having a support member is pivotally supported on a side wall, and the swinging sorting body On the side plate of the sorting body, facing the support member and extending over substantially the entire length of the side plate of the swinging sorting body in the longitudinal direction. The above-mentioned problem has been solved by configuring the apparatus so that the receiving frame is attached and the swinging sorting body is pushed up by the support member of the swinging lever and taken in and out from the dust exhaust port.

(e) Function When performing maintenance and inspection on the sorting chamber of the threshing machine or the swing sorting body, the coupling between the swing sorter and the swing arm is released, and then the swing lever is rotated to perform the swing sorting with the support member. When the receiving frame of the body is pushed up, the oscillating sorting body is supported at its midpoint by the support member, and in this state, when the oscillating sorting body is pulled backward from the dust exhaust port, it can be taken out very easily. be able to.

(f) Example An example of the present invention will be explained with reference to the drawings.
The area extending from the bottom of the receiving net 2a of the handling room 2 in which the handling cylinder 1 is installed to the rear dust sorting room 3 is configured as a sorting air path by a blower windmill 4 and a suction windmill 5. The front swinging arms 6, 6 and the rear swinging arms 7, 7 are installed to swing a swinging sorter 8 back and forth, and the swinging sorter 8 faces directly below the receiving net 2a. As shown in FIG. 1, there is a wave-shaped transfer plate 10 whose front end slopes downward in a F-shape, a flow plate 11 continuing to the rear of the wave-type transfer plate 10, and a wave-type transfer plate extending rearward from the lower end of the flow plate 11. A plate 12, a sorting net 14 connected to the rear end and facing above the first receiving gutter 13, and a stroke rack 1 facing above the first flowing plate 15 and the second receiving gutter 16.
A processing section is provided from the rear part of the handling chamber 2 on the handling port side to a part facing the suction windmill 5, and the transfer chamber 18a at the front part of the processing section 18 is connected to the dust inlet 19. The transfer spiral 20 is attached to the processing shaft 21, and the processing cylinder 22 is attached to the processing shaft 21 in the rear processing chamber 18b.
A discharge port facing the suction windmill 5 is provided at the rear part of b.

In addition, the sorting air from the cross-flow fan 25 provided at the front of the second receiving gutter 16 blows through the stroke rack 17 and is blown out to the dust exhaust port 26 at the rear.
A feed chain 27 is installed outside the handling opening of the handling chamber 2.
and a pinching rail 28 are provided, and at the end of the transfer, a straw removal conveying device 30 whose rear portion is displaced toward the panicle side is provided.

A pair of left and right swinging levers 31, 31 are pivotally supported above the first receiving gutter 13 by a fulcrum shaft 32, as shown in FIGS. 1 and 2. roller 3 as a supporting member.
3 and 33 are rotatably supported, and an elastic plate 31c (shown only in FIG. 2) is mounted on the upper part of one swing lever 31.
A grip portion 31a is attached via the holder.

In addition, rail-shaped receiving frames 34, 34 are integrally attached to the outer upper edges of the side plates 8a, 8a of the swinging sorter 8, so that when the swinging sorter 8 is in operation during threshing work, , when the swing lever 31 is positioned at the position shown by the solid line in FIG.
3 and 33 are receiving frames 34 and 3 as shown in FIG.
4 and does not become an obstacle to rocking.

Furthermore, the front swing arm 6 has its boss portion
As shown in the drawings and FIG. 4, the lower end of the downwardly extending portion 6a is tightened and fixed by a bolt 38 to a support shaft 37 rotatably supported by a bearing 37a at the lower part of a notched window 36 bored in a side wall 35. Loosely fit the protruding pin 39 into the rear end of the crank arm 40 and tighten the bolt 41.
The inverted L-shaped supports 42, 42 fixed to both sides of the wave-shaped transfer plate of the oscillating sorting body 8 each have a chevron-shaped notch 43 at the bottom, and the shaft 45 is While fitting into the notches 43, 43, the mounting plate 46,
46 is superimposed on the supports 42, 42, and the bolts 46a...
A bearing which is screwed onto the shaft 45 and fixed by being fitted onto the upper part of the swing arm 6 is fitted onto the shaft 45 and fixed with a bolt.

In the above-mentioned threshing machine, the grains leaking from the receiving net 2a are sieved and screened while being transferred by the swinging sorter 8, and the cut ears and long straw are sent to the processing section 18 from the dust inlet 19. and is processed by the processing cylinder 22,
Small particles such as grains in the processed material fall from the processing body receiving net 22a onto the oscillating sorting body 8 and are sorted.
The straw waste moved to the end of the processing chamber 18b by the processing teeth having a lead angle is thrown from the discharge port toward the suction windmill 5 and is air-selected.

When performing maintenance and inspection on the sorting chamber or the swing sorting body 8, the bolts 46a, 46a are removed, and the upper parts of the rear swing arms 7, 7 are removably connected with bolts in the same manner as the front swing arms 6. , so remove the bolt and remove the swing lever 3.
When the grip part 31a of No. 1 is tilted rearward in FIG. 1 and pulled outward a little, and then locked with the stopper 31b as shown by the chain line, the rollers 33, 33 abut and push the receiving frames 34, 34. The oscillating sorting body 8 will rise to the position shown by the chain line a, so when you insert your hand through the dust outlet 26 and lightly push down the rear part of the oscillating sorting body 8, the front part will rise around the rollers 33, 33. do.

When pulled rearward in this state, the swinging sorting body 8 is guided by the rolling rollers 33, 33 and is easily pulled out.

In addition, after the maintenance and inspection of the sorting chamber or the swinging sorting body 8, etc., the front part of the swinging sorting body 8 is opened through the dust exhaust port 26.
1, and place the receiving frames 34, 34 on the rollers 33, 33 located at the positions indicated by chain lines in FIG.
Push it in while supported, fit the notch 43 of the receiver 42 onto the shaft 45, screw the mounting plate 46 with the bolts 46a, and also screw the rear swing arms 7, 7.

(g) Effects of the invention As mentioned above, the present invention has the swinging sorter 8 installed in the sorting air passage extending from the bottom to the rear of the handling chamber 2 with the swinging arms 6 and 7, and the dust exhaust port 26 at the rear. In the threshing machine, the dust outlet 26 is opened to the extent that the swinging sorting body 8 can go in and out, the swinging sorting body 8 is removably attached to the swinging arms 6 and 7, and a swinging lever having a support member is provided. 31 is pivotally supported on a side wall 35, and a receiving frame 34 is attached to the side plate 8a of the swing sorting body 8, facing the support member and extending substantially over the entire longitudinal length of the side plate 8a of the swing sorting body 8. Since the moving sorter 8 is configured to be taken in and out from the dust exhaust port 26 while being pushed up by the support member of the swing lever 31,
When performing maintenance and inspection on the sorting chamber or the swinging sorter 8, when the swinging lever 31 is tilted, the support member comes into contact with the receiving frame 34 and pushes up the swinging sorter 8. It can be taken in and out of the dust outlet 26 very easily while being supported like a seesaw by the support member.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a longitudinal cross-sectional view of the threshing machine, Figure 2 is a cross-sectional view of the main parts, Figure 3 is an exploded perspective view of the front swing arm,
FIG. 4 is a sectional view of the same as above. 6... Front swinging arm, 7... Rear swinging arm, 8... Rocking sorter, 31... Rocking lever, 3
3...roller, 34...receiving frame.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A threshing machine in which a swinging sorter 8 is installed in a sorting air path extending from the bottom to the rear of the handling room 2 with swinging arms 6 and 7, and a dust exhaust port 26 is provided at the rear. In the machine, the dust exhaust port 26 is opened to the extent that the swinging sorting body 8 can go in and out, the swinging sorting body 8 is removably attached to the swinging arms 6 and 7, and the swinging lever 31 having a support member is attached. The swing sorting body 8 is pivotally supported on the side wall 35.
on the side plate 8a of the oscillating sorting body 8, facing the support member and extending over substantially the entire length of the side plate 8a of the swing sorting body 8 in the longitudinal direction. An attachment/detachment device for a swing sorting body in a threshing machine configured such that a receiving frame 34 is attached to the swing sorting body 8 and the swing sorting body 8 is taken in and out from a dust exhaust port 26 while being pushed up by a support member of a swing lever 31. (2) A device for attaching and detaching a swing sorting body in a threshing machine according to claim 1, wherein the support member is constituted by a roller 33.