JPH0323060Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an oscillating sorting device for a threshing machine, and more particularly to an oscillating sorting device in which a sorting plate is swingably supported on the machine wall of the threshing machine via a suspension arm.

Generally, a swinging sorting device is installed below the handling barrel of a threshing machine, and by swinging the sorting device in the front-back direction of the machine, the processed material threshed by the handling barrel is advected rearward, and the first product is removed. , second-class items and garbage.

By the way, in the sorting device, the rear side of the sorting plate in the advection direction of the materials to be processed is supported by the machine wall via a suspension arm, and the front side of the sorting plate is driven by a crank to sort the materials to be processed at the front. Therefore, the dust that flies up above the sorting plate during the sorting process may enter between the arm and the machine wall, and the long pieces of straw mixed with the processed material may come into contact with the arm during advection. In some cases, the arm gets caught between the arm and the machine wall, preventing the arm from smoothly swinging, resulting in a reduction in sorting performance.

Therefore, conventionally, as shown in Japanese Utility Model Publication No. 56-53636, an elastic member that slides on the machine wall is provided around the outer periphery of the suspension arm, and this member eliminates the gap between the arm and the machine wall. A sorting device has been proposed to prevent the intrusion of dust and the entanglement of straw waste, etc. However, according to this conventional means, the swing shaft of the arm and the fixing nut are positioned protruding into the sorting chamber. There was a risk that dirt would accumulate on the swing shaft and the fixing nut, which would impede the smooth swing of the arm.

The present invention was devised in view of the above-mentioned problems, and is intended to prevent dirt and debris from accumulating on the swing shaft and to allow the arm to swing smoothly. More specifically, it is a swinging sorting device in which a sorting plate is swingably supported on a machine wall of a threshing section via a suspension arm, and the arm is integrally formed with a bearing part having a shaft hole. In addition, a separate hollow swing shaft is rotatably fitted into the bearing portion, and the swing shaft is provided with a bottom wall provided with a fixed shaft hole, and the fixed shaft hole is provided with a bottom wall. By inserting and fixing a fixed shaft into the machine wall, the swing shaft has a shaft portion rising from the bottom wall, a shaft portion extending outward from the shaft portion, and a bearing portion extending outward from the shaft portion. and an engaging portion that engages around the shaft hole of the shaft hole.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The oscillating sorting device of the present invention will be explained below with reference to embodiments shown in the drawings.

The threshing machine shown in the drawing has a handling barrel 1 in the upper front part of the machine.
A crimp net 3 is stretched in the lower part of the handling chamber 2, and a swing sorting device 4 is provided in the lower part of the handling chamber 2.

This sorting device 4 has a stroke rack 6, a grain sheave 7, etc. integrated into a sorting plate 5, a crank mechanism 8 is provided in the front part of the sorting plate 5, and both rear sides are connected to the machine wall via suspension arms 9, 9. A is suspended in the air, and the crank mechanism 8 is used for swinging the sorting plate 5 in the front and back direction, and the sorting air from the winnowing machine 20 provided at the front lower part of the sorting device 4 is used. The processed material, which has been threshed in the handling cylinder 1 and has arrived on the sorting plate 5, is advected rearward to be sorted into first-class products, second-class products, and garbage.

Thus, the suspension arm 9 supporting the sorting plate 5
is formed from synthetic resin as follows.

That is, on one side in the length direction of the arm 9, the machine wall a
A bearing part 9b having a shaft hole 9a is integrally formed on the support side of the arm 9, and this bearing part 9b is formed to be slightly lower than the outer end surface of the arm part 9c of the arm 9. A fin piece 9d extending from the outer periphery of the bearing part 9b to the middle part of the arm part 9c is integrally formed in an inclined inward direction, and the fin piece 9d is integrally formed with the arm part 9c. The gap between the arm 9 and the machine wall a is made small by directing it toward the machine wall a when attached. In this case, the fin piece 9d is made smaller than the maximum thickness of the arm 9. It is made so that it does not protrude toward the machine wall a side.

A swing shaft 10 that swingably supports the arm 9 on the machine wall a is formed as follows.

This swing shaft 10 is provided with a bottom wall 10c having a fixed shaft hole 10b on one side in the axial direction of the hollow shaft portion 10a, and an engaging portion 10d extending in the outer circumferential direction on the other side of the shaft portion 10a, This engaging portion 10d is engaged around the shaft hole 9a of the bearing portion 9b of the arm 9, which is slightly lower than the surface of the arm portion 9c of the arm, so that it is flush with the arm portion 9c of the arm. In other words, from the total axial length t1 of the swing shaft 10, the bearing portion 9b
It is constructed by making the thickness slightly smaller.

In this way, the shaft portion 10a of the swing shaft 10 is inserted into the shaft hole 9a of the bearing portion 9b of the arm 9, and the engaging portion 10d of the shaft portion 10a is engaged with the outer peripheral edge of the bearing portion 9b. Then, insert the fixed shaft 11 into the machine wall a from the fixed shaft hole 10b provided in the bottom wall 10c of the shaft part 10a inside the shaft part 10a,
By fastening this fixed shaft 11 with a nut 12, the bearing 10 is fixed to the machine wall, so the arm 9
will be swingably supported by the machine wall a.

The engaging portion 10d of the swing shaft 10 is connected to the shaft portion 10a.
A plurality of protruding pieces may be formed to protrude radially from the base plate, and the arm 9 may be engaged and supported on the swing shaft 10 by the protruding pieces, but the engaging portion 10d may be continuous in the circumferential direction. It is preferable to form it in a flange shape, and in this case, the sliding contact portion between the shaft portion 10a and the shaft hole 9a of the arm bearing portion 9b is the engaging portion 10.
By closing the sliding contact portion d, it is possible to prevent dust from entering the sliding contact portion.

Further, as shown in FIG. 4, the arm part 9c of the arm 9 has a rear side in the advection direction of the processed material on the sorting plate 5, that is, a side facing the processed material to be advected, and a front side in the advection direction located at a higher level. An inclined surface 9e is formed with the rear side being lower, and the processed material advected on the sorting plate 5 is smoothly passed through the inclined surface 9e and wrapped around the arm portion 9c of the processed material arm 9. We are trying to prevent it.

Further, on the opposite side of the arm 9 from the machine wall mounting side bearing part 9b, a bearing part 9g having a shaft hole 9f similar to that of the bearing part 9b is formed. The swing shaft 13 is inserted and the swing shaft 1
3 is fixed to the sorting plate 5 via a fixed shaft 14, and a mounting part 9h for a sieve wire 15 extending rearward of the sorting plate 5 is formed at the tip of the bearing part 9g of the arm 9. .

In the figure, 16 is a conveyor for taking out the first product, 17 is a conveyor for taking out the second product, 18 is a fried grain thrower, and 19 is a conveyor for taking out the second product.
is the dust removal cylinder.

The present invention is constructed as described above.
The grain culms supplied to the culm are threshed by the handling cylinder 1, and this processed material is dropped downward from the clamp net 3 and reaches the sorting plate 5 of the swinging sorting device 4, where it is removed by the sorting plate 5. In combination with the swinging action by the crank mechanism 8 and the sorting wind from the winnower 20, the sorting plate 5
The first item among the processed items is taken out to the outside by the first item take-out conveyor 16, and the second item is taken out by the second item take-out conveyor 1.
7 is returned to the handling room 2 via the grain thrower 18, and the dust is returned from the rear of the sorting plate 5 to the dust exhaust cylinder 19.
is discharged by

Therefore, when sorting the materials to be processed, the dust flies up above the sorting plate 5, but the arm 9 has a bearing part 9b supported by the machine wall a via a short hollow swing shaft 10, and Since the swing shaft 10 is fixed to the machine wall a by the fixed shaft 11 inserted in the hollow interior thereof, the bearing portion of the arm 9, that is, the shaft hole 9
This prevents dirt and debris from accumulating and entering between the shaft portion 10a of the swing shaft 10 and the shaft portion 10a of the swing shaft 10.

As explained above, the oscillating sorting device of the present invention is a oscillating sorting device in which a sorting plate is swingably supported on the machine wall of the threshing section via a suspension arm, and the arm has a shaft hole. A rotary bearing part is integrally formed, and a separate hollow swinging shaft is rotatably fitted into this bearing part, and the bottom wall has a fixed shaft hole in the swinging shaft. By inserting and fixing a fixed shaft into this fixed shaft hole, it can be fixed to the machine wall, and
Further, the swing shaft is configured to include a shaft portion rising from the bottom wall and an engaging portion projecting outward from the shaft portion and engaging around the shaft hole of the bearing portion. Since dust does not accumulate or enter the bearing portion of the arm, and the swing shaft is hollow, the weight of the sorting device can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a threshing machine incorporating the oscillating sorting device of the present invention, and Fig. 2 is an enlarged side sectional view of the main parts.
FIG. 3 is a front view of the suspension arm, and FIG. 4 is an enlarged cross-sectional view taken along line--FIG. 3. 5... Sorting plate, 9... Suspension arm, 9a... Shaft hole, 9b... Bearing portion, 10... Swing shaft, 10b...
...fixed shaft hole, 10c...bottom wall, 10d...engaging portion, 11...fixed shaft, a...machine wall.

Claims (1)

[Scope of utility model registration request] This is a swinging sorting device in which a sorting plate 5 is swingably supported on a machine wall a of a threshing section via a suspension arm 9, and the arm 9 is integrally provided with a bearing part 9b having a shaft hole 9a. At the same time, this bearing part 9
b, into which a separate hollow swing shaft 10 is rotatably fitted, the swing shaft 10 is provided with a bottom wall 10c provided with a fixed shaft hole 10b, and the fixed shaft hole By inserting and fixing the fixed shaft 11 into 10b, it can be fixed to the machine wall a, and the swing shaft 10 also has a shaft portion 10a rising from the bottom wall 10c and a shaft portion 10a.
A swing sorting device for a threshing machine, comprising an engaging portion 10d projecting outward from the shaft and engaging around the shaft hole 9a of the bearing portion 9b.