JPH07274692A - Threshing and grading device - Google Patents

Abstract

PURPOSE:To reduce the clogging of straw refuses in a space between a vibration-grading rack for receiving and vibration-grading threshed products and a winnower disposed on the lower side of the rack. CONSTITUTION:In the threshing and grading device, a vibration distance space 7 enabling the vibration of a transfer plate 3 is formed between the lower surface of the transfer plate 3 on the starting end of a vibration-grading rack 2 and the air blow-out port 6 of a pressure air winnower 5 for blowing out air into a grading air passageway directed to the vibration-grading rack 2, and an air-sucking port 8 for directly sucking the air from the vibration distance space 7 into the winnower 5 is also formed. The vibration-grading rack 2 is used for receiving threshed products leaked down from a threshing chamber 1, vibration-transferring the received threshed products, and simultaneously grading grains contained in the products.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing / sorting apparatus having an oscillating sorting rack for swinging and sorting by receiving threshing, and can be used as a threshing apparatus for combine harvesters and harvesters.

[0002]

2. Description of the Related Art In a threshing device having an oscillating sorting shelf, a transfer plate on the side of the starting end of the oscillating sorting shelf and a Karako for compressed air provided below the transfer plate. A predetermined rocking interval portion for rocking the rocking sorting shelf is provided therebetween. For this reason, a part of the straw scraps or the like during the sorting is clogged in the swinging interval portion, which becomes a swinging resistance of the swinging sorting shelf, and the transfer plate or the like is easily damaged.

[0003]

The present invention relates to a lower surface of a transfer plate 3 on the starting end side of an oscillating sorting shelf 2 for selecting grains while oscillating and transporting them after receiving the grain removed from the threshing chamber 1. A swingable spacing portion 7 of the transfer plate 3 that can swing is formed between the blowout outlet 6 of the compressed air Karasu 5 blown toward the sorting airflow passage 4 toward the swinging sorting shelf 2, and this swinging spacing portion 7 is formed. The threshing and sorting device is configured to form a suction port 8 that sucks air directly into the Kara Minoh 5 from.

[0004]

[Effects and Effects of the Invention] When grains, straw waste, and the like threshed in the threshing chamber 1 leak to the lower swing selection shelf 2, the grains are transferred by the swing of the swing selection shelf 2 while being transferred. The sorting action of is performed. Select air passage 4 from outlet 6 of compressed wind Kara5
A wind-selection action is performed by the selection wind blown toward the.

At this time, even if straw dust or the like enters the rocking / sorting interval 7 between the transfer plate 3 of the rocking / sorting shelves 2 and the compressed / blasted sardine 5, the suctioned air 8 is sucked in at the suction port 8 of the compressed / swallowed sardine 5. Due to the action, the straw dust or the like is less likely to be stagnant in the rocking interval portion 7 because it is sucked into the compressed wind slag 5 and, therefore, is pressed or accumulated by the rocking of the transfer plate 3. Therefore, the smooth swinging selection action of the swinging selection shelf 2 can be maintained. Moreover, the configuration is simple.

[0006]

EXAMPLE A combine threshing device is provided with a threshing chamber 1 in which a handling barrel 9 is mounted by a handling barrel shaft 10 at the upper part, and below the threshing chamber 1 there are a grain culm supply port 11 and a discharge port 12. A throttling and sorting shelf 2 is provided below the threshing net 13 that is stretched over the swing throttling net 2 for sorting and swinging and transferring the threshing nets that have leaked or discharged from the threshing net 13 and the discharge port 12 and the like. A sorting chamber 14 that constitutes the sorting air passage 4 is provided on the lower side. Further, on the rear side of the threshing chamber 1, above the sorting chamber 14, a dust chamber 16 having a suction dust collector 15 is provided.

A fade chain 17 is stretched on one side of these threshing chambers 1 along a grain culm transfer portion which communicates from the front grain culm supply port 11 to the rear discharge port 12. The sliding rods attached to the threshing cover 18 side of the above are provided to face each other, and the root portion of the grain culm transferred from the front reaping device is held between these feeding chains 17 and the sliding rods. It is then threshed while being transported. Reference numeral 19 denotes a culm chain provided on the upper side of the dust-exhaust chamber 16 for inheriting the threshed culm from the end of the feed chain 17 and supplying it to the rear cutter 20 for cutting.

The rocking sorting shelf 2 is provided with a transfer plate 3 on the side of the supply port 11, and the shed grain collected by the transfer plate 3 is sorted by the rack shelf 21 so that straw wastes and the like can be rearward. Straw
The grains are transferred to the rack 22 and the grains are allowed to leak from the rack shelf 21 onto the net shelf 23 below, and are further swing-sorted on the net shelf 23. The first item to be sorted is received by the first trough 24 below the sorting air duct 4 and taken out to the Glen tank, and the second item is picked up by the second trough 25, and the second grain raising machine is used in the threshing chamber. 1
And then threshing is performed, and the straw waste is discharged from the end of the straw rack 22 through the straw outlet 26.

The sorting wind in the sorting wind passage 4 is compressed wind Kara
Is blown into the sorting air passage 4 from the outlet 6 and passes through the gaps such as the rack shelf 21 of the rocking sorting shelf 2 and the straw rack 22 and the dust chamber 16 Is sucked up by the suction dust collector 15 on the upper side and exhausted to the outside of the machine. Upper peripheral wall plate 28 of compressed wind Kara5 and net shelf 2
The transfer plate 3 is provided between the transfer plate 3 and the transfer plate 3 at the starting end of the transfer plate 3.
The rocking | fluctuation space part 7 which can rock | fluctuate is formed. The swinging interval portion 7 is communicated from the lower portion on the grain culm supply port 11 side to the inside of the sorting air passage 4. Pressure wind Karan 5 for this sorting wind passage 4
A suction port 8 is formed in the peripheral wall plate 28 near the upper side of the air outlet 6 to directly connect the swinging interval portion 7 and the inside of the compressed air Karato 5 to rotate the Karato blades of the compressed air Karo 5. By this, suction air can be generated at the suction port 8.

When the straw chips and the like during the swing sorting operation enter the swing spacing portion 7, they are directly sucked into the suction port 8 and blown out from the blow-out port 6 to the sorting air passage 4. Therefore, even if the transfer plate 3 approaches the upper surface of the peripheral wall plate 28 due to the rocking of the rocking / sorting shelf 2, it is less likely to be compressed and accumulated unless the straw chips and the like remain in the rocking interval portion 7. Hard to become swing resistance. The threshing chamber 1 includes a front side plate 29 that forms the grain culm supply port 11, a rear side plate 30 that forms the discharge port 12, and a partition that supports the rear edge of the threshing net 13 at an appropriate space inside the rear side plate 30. The plate 31 is arranged, and the handling barrel shaft 10 is supported by the bearings 32 and 33 between the front side plate 29 and the rear side plate 30.
Reference numeral 34 denotes a side plate facing the grain culm transfer port on the side of the feed chain 17, which has an inclined surface 35 formed in the middle thereof to remove the grain spilled from the threshing net 13 into the leakage chamber 36 under a swinging selection shelf. 2 Let the downflow guide.

The threshing net 13 comprises a lower net 13A and an upper net 13
It is composed of B and is detachable by being inserted between the front and rear front plates 29 and the partition plate 31. The lower net 13A can be put in and taken out from the grain culm transfer opening on the side of the feed chain 17, and the upper net 13B can be put in and put out from the side of the threshing cover 18 which can be opened and closed. 37 is these upper net 13B and lower net 13A
It is a joining pin that joins between and. 38 is the upper net 13B
With a fixed shaft that stops the upper end of the bracket, it can be attached to and detached from the bracket 40 that is attached to the front side plate 29, the partition plate 31, etc.
9 to engage the upper edge of the upper net 13B.

A reinforcing plate 41 is provided on the outer periphery of the threshing net 13 along the direction of the shaft 10. The reinforcing plate 41 approaches the edge and connects the front side plate 29 and the partition plate 31. A connecting rod 42 is provided for reinforcement. Mounting pieces 43, 44 are provided in front of and behind the connecting rod 42, and the mounting pieces 43 are attached to the front side plate 2.
9 is attached to the inner side surface of the partition plate 9, the mounting piece 44 is attached to the surface of the partition plate 31, and the fasteners 45 and 46 such as bolts and nuts are tightened and fixed. Therefore, since the connecting rod 42 is provided close to the back side of the net reinforcing plate 41, it is less likely to interfere with grain removal that falls in the leakage chamber 36.

[Brief description of drawings]

FIG. 1 is a side view.

FIG. 2 is a partial front view.

FIG. 3 is a partial exploded perspective view.

[Explanation of symbols]

 1 Threshing Room 2 Swing Sorting Shelf 3 Transfer Plate 4 Sorting Air Path 5 Compressed Air Kara Minou 6 Outlet 7 Swing Interval 8 Suction Port

Claims (1)

[Claims] 1. A lower surface of a transfer plate 3 on a starting end side of an oscillating sorting shelf 2 for sorting grains while oscillating and transporting the spilled grain received from a threshing chamber 1, and sorting toward the oscillating sorting shelf 2. An oscillating gap portion 7 capable of oscillating the transfer plate 3 is formed between the blowout port 6 and the outlet 6 of the compressed air Karamoru 5 blown into the air passage 4. A threshing selection device that forms a suction port 8.