JPH0341Y2 - - Google Patents

Description

[Detailed explanation of the invention] In general, with a self-threshing type top threshing machine, if the grain culm to be threshed is wet, much of the threshed grain falls into the part of the oscillating sorter that is far from the handling opening, and dries out. If this happens, the wind generated by the handling cylinder as it rotates will cause more grains to fall toward the side closer to the handling port, so a guide plate slanted above the transfer plate before the threshing reaches the stroke rack of the oscillating sorter is installed. If the material to be sorted is moved from one side to the other by providing a This has the disadvantage that the sorting performance deteriorates markedly as a result of grain acceleration, and even if the unevenness of threshing is corrected using the guide plate, it is not possible to sufficiently average the grain, so it is difficult to There was a drawback that the wind selection was insufficient and the grains were scattered.

In addition, in the lower threshing machine, the threshed grain falls on the opposite side from the above-mentioned upper threshing machine.

The present invention facilitates the feeding and dispersion of the sorted materials by moving the materials to be sorted to either the left or right side according to the drying and wetting of grain threshing, and simultaneously changing the direction of the sorting wind to the said feeding direction. The purpose of the present invention is to provide a sorting device for a threshing machine that can always perform good sorting and reliably prevent scattering. In a threshing machine in which a stroke rack is extended to the terminal end of a swinging sorting body installed in the sorting air passage, the starting end of the stroke rack overlaps the lower surface of the transfer plate at the end of the swinging sorting body, and the lateral direction The present invention is characterized in that it is configured to be rotatably mounted on the machine so that the direction of the objects to be sorted and the direction of the sorting air can be changed at the same time.

The embodiments shown in the drawings will be explained below.
Reference numeral 1 denotes a handling barrel that is mounted on a shaft in a handling chamber 2, and a large number of handling teeth are installed in a spiral shape on the outer circumferential surface of the handling barrel. Mouth 5
As shown in FIG. 4, on the side of the dust feeding port 6, there are a row of tilted handling teeth 4a (circumferential direction) and a row of handling teeth 4b perpendicular to the handling cylinder axis. are arranged alternately, and the handling teeth 4c at the part corresponding to the dust feeding port 6 are perpendicular to the handling cylinder axis, and a pair of holes 7 bored in the middle part of the handling cylinder 1 as shown in FIG. ，
7 is a support shaft 9 to which the base of the guide plates 8, 8 is fixed;
9 is rotatably inserted through the shaft, the tips of arms 10, 10 protruding from the inner ends of the support shafts 9, 9 are connected by a connecting rod 11, and the bolt is inserted into a long hole 12 drilled in the handling barrel 1. 13 into the hole of the connecting rod 11, and then tighten the nut 15.
By screwing the guide plates 8, 8 into the first
As shown in the figure and Fig. 4, it can be rotated left and right to adjust the movement of grain threshing slowly and rapidly.
When a large amount of straw waste etc. is generated inside the culm, it is tilted towards the culm opening 5 side to promote movement, and even if wet grain culms or fallen grain culms are threshed at a low efficiency, many spikes etc. will occur. In this case, it tilts toward the supply port 3 side to suppress the movement of the threshed grains and improve the threshing performance.

16 is a blower fan 1 installed at the bottom of the starting end of the handling room 2
7 and a suction fan 1 installed above the rear part of the dust removal chamber 18.
9, a part of the sorting air from the blower fan 17 is blown from the lower part of the first receiving gutter 21 to the second receiving gutter 26 to the dust exhaust port 16a. A swinging sorting body 20 is installed in the sorting air passages 16, 16a so as to swing back and forth, and the swinging sorting body 20 is connected to the receiving net 2.
A transfer flow plate 22 facing the lower surface of a, a sorting net 23 extending from its terminal end and facing the first receiving gutter 21, and a second receiving gutter from the upper end of the first flow plate 24 via a corrugated transfer plate 25. 26, and a stepped transfer plate 2 whose starting end faces directly below the dust inlet 6.
8 and a stroller rack 28 extending to the end thereof.
...etc., and the stroke rack 29...
As shown in FIGS. 1 and 3, the rear ends of the mounting portions of the mounting portions are horizontally rotatably supported on the step-shaped transfer plate 28 by means of fulcrum pins 30, respectively, and the front portions are supported by connecting rods 31.
The stroke rack 29 on one side is connected by a wire 33 to an adjustment lever 34 provided on the control section, and the stroke rack 29 on the other side is biased back by a spring 35. However, when the adjustment lever 34 is set in the middle of the lever guide 36 as shown by the solid line in FIG. 3a, the stroke racks 29 become parallel to the handling barrel axis as shown by the solid line in FIG. Then, it tilts left and right depending on the amount of adjustment.

In addition, a pinching rail 38 is provided oppositely to the upper surface of the feed chain 37 stretched along the outside of the handling port 2b, and a pinching rail 38 is installed from the end of the feed chain 37 to the waste sorting chamber 37.
A straw removal conveying chain 40 is provided on the top plate 39 of No. 3, which is inclined toward the ear side in plan view, and the front part of a clamping rail 41 installed opposite to the lower surface of the chain supports the rear end of the handling barrel shaft. The gear case 42 is supported via the bullet 42a and the support rod 42b, and the rear part is supported by the support rod 4
3 and a bullet 43a to a dust exhaust guide plate 44 that faces the upper part of the suction port 19a of the suction fan 19, and the rear end of the dust guide plate 44 is connected to the rear plate of the dust suction passage. A receiver 46 is screwed to the upper part of the support rod 45 so as to be tiltable up and down, and a receiver 46 fixed to the upper part is pivotally connected to the lower end of the support rod 43. It rises together with the support rod 43 due to the upward bias of the bullet 43a, widening the dust suction passage and weakening the suction force.This prevents scattering when the amount of dust to be sorted is small, and reduces the amount of straw to be discharged. When there is a large amount of dust, it tilts downward as shown by the chain line to narrow the vertical width of the dust suction passage, thereby increasing the suction force and reliably sucking and discharging the straw in the dust generated in large quantities to the outside of the machine.

In the combine threshing machine described above, the receiving net 2a
The deflated grains leaked from the transfer flow plate 22 to the sorting net 2
3 to be screened and sorted, and the main sorting air passage 16
The grains are sorted by the sorting wind of
The straw that remains on the sorting net 23 passes through the corrugated transfer plate 25 to the straw rack 27, where it is sieved into second straw and straw waste, and is wind-selected. From the mouth to the outside of the machine, the second material is transferred to one side of the machine body through the second receiving trough 26 and returned onto the transfer flow plate 22 by the second thrower.

Further, the dust including the ears discharged from the dust outlet 6 is transferred and sorted by the stepped transfer plate 28 and the straw rack 29, but when the wet grain culm is harvested and threshed, the adjustment lever 34 to the right in FIG. 3a, the stroke racks 29 are pulled by the wire 33 and tilted toward the handling port 2b, so that they fall onto the stepped transfer plate 28 on the side opposite to the handling port 2b. The collected dust is sequentially sent to the handling port 2b side by the inclined stroke rack 29, and at the same time, since the stroke rack 29 is tilted, the main sorting air is directed by the plate surface of the stroke rack 29 toward the handling port 2b side. The straw waste is loosened and dispersed as it is brought to the handling port 2b side by the feeding action of the straw rack 29 and the blowing action of the sorting wind, and during this transfer, the pieces of straw are thrown onto the lower straw rack 27. The straw waste is sorted out from the end of the upper straw rack in the dust suction passage by the cyclone action of the suction fan 19 and discharged outside the machine.

In addition, when threshing dry grain culms and light grain culms such as wheat, the feed chain 37 of the dust port 6
Even if the discharge guide plate 46 is provided on the side, the material to be sorted will fall to the feed chain 37 side due to the draft of the handling barrel. Therefore, the adjustment lever 34 is tilted to the right in FIGS. When relaxed, the stroke rack 29 rotates toward the suction fan 19 side in FIG. 2 due to the tension of the spring 35, and the objects to be sorted accumulated on the feed chain 37 side are transferred to the stroke rack 29 whose direction has been changed in the same manner as described above. The straw waste is moved to the opposite side of the feed chain 37 by the sorting wind, the ear cuts leak out, and the straw waste is sucked out of the machine by the suction fan 19.

Further, when the humidity level during threshing is standard, the adjustment lever 34 is set to an intermediate position.

The present invention is directed to a threshing machine in which, as mentioned above, windmills are provided at the beginning and end of the sorting chamber to form a sorting air path, and a stroke rack is extended to the end of the swinging sorter installed in the sorting air path. The starting end of the stroke rack is overlapped with the lower surface of the transfer plate at the end of the oscillating sorting body and is attached so as to be able to swing laterally, so that the direction of the objects to be sorted and the direction of the sorting air can be changed at the same time.
By changing the direction of the stroke rack according to the properties of the objects to be sorted, the objects that have fallen unevenly onto the oscillating sorting body can be moved by the pushing action of the stroke rack and the blowing action of the sorting wind whose direction has been changed. Together with this, it is possible to disperse the particles evenly in the width direction of the oscillating sorter and to loosen the clumps, thereby ensuring reliable sieving and wind selection. It is possible to prevent number scattering.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Figure 1 is a longitudinal side view of the threshing machine, Figure 2 is a longitudinal plane view of the same as above, Figure 3a is a cross-sectional front view of the main part, b is a front view of the connection between the wire and the stroke rack, and c is a front view of the stroke rack. FIG. 4 is a side view of the base, FIG. 4 is a developed view of the handling cylinder, FIG. 1... Handling cylinder, 6... Dust inlet, 16... Main sorting air path, 17... Ventilation fan, 19... Suction fan,
20... Oscillating sorting body, 28... Transfer plate, 29...
Stroll rack, 34...adjustment lever.

Claims (1)

[Scope of utility model registration request] In a threshing machine in which a windmill is provided at the starting end and the terminal end of a sorting chamber to form a sorting air path, and a stroke rack is extended to the end of an oscillating sorting body installed in the sorting air path, the starting end of the stroke rack is A sorting device for a threshing machine, characterized in that it is configured to overlap the lower surface of a transfer plate at the end of a swinging sorter and to be attached so as to be able to rotate laterally so as to simultaneously change the direction of the objects to be sorted and the direction of the sorting air.