JPS629790Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, a suction-type dust exhaust fan was installed at the top of one side of the dust sorting chamber, and the end of the dust transfer and sorting body, which was installed on the top of the oscillating conveyance and sorting body, was connected to the suction of the dust exhaust fan. A threshing machine with the end of the straw sheave provided below facing the dust exhaust port faces the part facing the mouth, and the lower part of the threshing machine faces the part facing the suction port of the dust sorting chamber. A board was attached to guide the straw waste and long straw transferred by the dust transfer sorter toward the dust removal fan.

However, when the inside of the dust sorting chamber is suctioned from the side by a dust exhaust fan, the parts close to the dust exhaust fan are strongly suctioned, but the suction force weakens as you move away from the dust exhaust fan. was at the same height over the entire width of the dust sorting room.

Therefore, depending on the guide plate, straw waste, long straw, etc. cannot be sufficiently guided in areas near the dust exhaust fan compared to its suction power, and on the opposite side, straw waste may be left on the guide plate. There was a drawback that long straw accumulated and resulted in poor sorting.

The purpose of the present invention is to eliminate the above-mentioned drawbacks, and a centrifugal dust exhaust fan is provided at the top of one side of the dust sorting chamber, and a dust exhaust fan is installed at the top of the oscillating transfer sorting body. The terminal end of the transfer sorting body faces the front surface of the suction port of the dust exhaust fan, and a straw sieve is provided across the dust exhaust port provided from below to the rear of the dust transfer sorting body of the swinging transfer sorting body. In the threshing machine, a guide plate with a lower part facing diagonally forward and downward is provided in a part facing the rear part of the dust exhaust fan in the dust sorting chamber, and when the lower edge of the guide plate is viewed from the front and back direction, the suction port side is low; The other side is characterized by being sloped higher.

The embodiment shown in the drawings will be explained below.1
A handling cylinder is mounted on a shaft in a handling chamber 2, and a feed chain 3 and a clamping rail 4 are disposed opposite to each other along a handling opening.

Reference numeral 5 denotes an oscillating transfer sorting body that extends from the bottom of the receiving net 6 to the waste sorting chamber 7, and is installed between both side walls so as to be able to oscillate back and forth.
A transfer plate 8 whose starting end faces the lower surface of the receiving net 6 and whose terminal end faces most above the receiving gutter 11a, and a wind guiding plate 8a whose terminal end is bent upward to form a V-shape.
, a sorting net 9 connected to the terminal end of the wavy plate 8b built in the V-shaped part, a wavy plate 12 facing onto the second receiving gutter 11b from the upper end of the first flow plate 10, and a wavy plate 12 at the terminal end thereof. Continuously installed straw sieve 13 and dust inlet 14
It is composed of a dust transfer and sorting body 15 that transfers and sorts long straw, ear pieces, etc. discharged from the feeder, and the sorting air from a blower fan 17 installed below the supply port 16 passes through the top of the first receiving gutter 11a. The main sorting air passage 19 blows through the sorting net 9 and goes to the centrifugal dust exhaust fan 18 attached to the side wall of the dust sorting room 7, and the straw passes from below the first receiving gutter 11a to above the second receiving gutter 11b. After blowing through the sheave 13, the air is separated into a sub-selection air passage 21 which blows out to the dust exhaust port 20.

The dust transfer sorting body 15 is connected to the dust inlet 14.
A corrugated transfer plate 15 facing onto the sorting net 9 from below
a, and a straw sieve 15b connected to its terminal end.
The starting end of the straw sheave 15b is
The starting end of the sorting net 9 and the suction port 1 of the dust exhaust fan 18
It is located slightly in front of the line a connecting the inner edge 18a' of the guide plate 8a, and its terminal end is at a height that substantially matches the lower end of the guide plate 22, and the guide plate 22 and the upper end of the first flow plate 10. The guide plate 22 is located on the inner side with a distance 1 apart from the connecting line b, and the guide plate 22 is provided at a portion facing the suction port 18a of the dust exhaust fan 18, and has a doglegged cross section so that the lower part faces diagonally forward and downward. It has a shape, and its lower end is connected to the inlet 1 as shown in Figure 3.
The 8a side is low, and the opposite side is successively higher.

Note that the lower part of the guide plate 22 is a movable part 22a,
The ability to adjust the movement up and down makes it possible to cope with the conditions of grain culms to be threshed, such as wheat and rice, or dry grain culms and wet grain culms.

In addition, the sorting net 9 of the main sorting air path 19 and the first receiving gutter 1
1a, there are two wind direction plates 23, 2 that form a C-shape.
4 is provided, and a straw sheave 13 and a second receiving gutter 11b are installed.
A wind direction plate 25 for converting the sorting wind upward is also provided between the two.

In the drawing, reference numeral 26 indicates a straw conveying device, 27 indicates a fourth port, and 28 indicates a second thrower provided at the lower part of the same side as the dust removal fan 18. It opens toward a second reduction passage 29 that communicates with the top of the transfer plate 8.

In the above-mentioned apparatus, grains and small straw waste among the materials generated in the handling room 2 fall from the receiving net 6 onto the transfer plate 8 and are transferred to the sorting net 9.
While being transferred above, it falls into the first receiving gutter 11a while being screened by the screening wind of the main screening air path 19,
It is carried out of the aircraft by the transfer spiral.

Further, the dust discharged from the dust port 14 is transferred by the corrugated transfer plate 15a, and when it reaches the straw sieve 15b, it is transferred while undergoing wind selection by the main sorting wind, during which the ears are Cuts, etc. leak and the straw waste is transferred toward the suction port 18a of the dust exhaust fan 18.

At this time, on the side near the dust exhaust fan 18, straw waste and long straw transferred by the straw sieve 15b are received by the wide part extending below the guide plate 22, and are sucked and guided to the suction port 18a by a strong suction wind, On the side, straw waste, etc. that can be inhaled is received by a narrow part with a high lower end and guided toward the suction port 18a, and some of the straw waste, etc. transferred to this part is connected to the lower end of the guide plate 22. It falls onto the straw sieve 13 below from the wide gap formed between the straw sieve 15b and the end of the straw sieve 15b, and merges with that which has migrated from the sorting net 9, and the straw sieve 13 sieves it while transporting it. , the second one leaks and is air-selected by the sorting wind of the sub-selecting air passage 21, and then transferred to the second receiving gutter 11.
The second straw, which has fallen into the tube b and is transferred by the transfer spiral, is returned onto the transfer plate 8 by the second thrower 28, and the straw waste on the straw sieve 13 is discharged from the dust outlet 20 to the outside of the machine.

As mentioned above, in the present invention, a centrifugal dust exhaust fan is provided at the upper part of one side of the dust sorting chamber, and the terminal end of the dust transfer sorting body provided on the upper part of the oscillating conveyance sorting body is connected to the dust exhaust fan. In a threshing machine in which a straw sieve is provided facing the front of the suction port and extending from the bottom to the rear of the dust transfer and sorting body of the oscillating transfer and sorting body to the dust exhaust port, A guide plate with the lower part facing diagonally forward and downward is provided in the area facing the rear of the fan, and the lower edge of the guide plate is slanted so that the intake port side is low and the other side is high when viewed from the front and rear directions. On the side close to the dust fan, the straw, etc. transferred by the dust transfer sorter facing it is received by the wide part of the guide plate, and while increasing the suction efficiency, it is accurately blown away and discharged, away from the dust fan. At this point, the guidance of straw waste by the guide plate is limited to a range commensurate with the weakening of the suction force, and the straw waste that is not sucked and discharged is transported to the lower straw through the wide gap formed between the guide plate and the dust transfer sorting body. The dust can be discharged to the dust exhaust port by the sieve, and it is possible to prevent straw dust and the like from accumulating on the guide plate and clogging the suction air passage.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a longitudinal sectional view of the threshing machine, FIG. 2 is a longitudinal sectional plan view of the same, and FIG. 3 is a transverse sectional view. 5... Oscillating transfer sorting body, 7... Dust sorting room, 1
3... Straw sieve, 15... Dust transfer sorting body, 18... Dust exhaust fan, 18a... Suction port, 2
2...Information board.

Claims (1)

[Scope of utility model registration request] A centrifugal dust exhaust fan is provided in the upper part of one side of the dust exhaust sorting chamber, and the terminal end of the dust transfer sorter provided on the upper part of the oscillating transfer sorter is opposed to the front surface of the suction port of the dust exhaust fan. , in a threshing machine in which a straw sieve is provided extending from the bottom of the dust transporting and sorting body of the oscillating dust transporting and sorting body to the dust exhaust port provided at the rear, a part facing the rear part of the dust exhaust fan in the dust sorting chamber; A suction exhaust in a threshing machine characterized in that a guide plate is provided with a lower part facing diagonally forward and downward, and the lower edge of the guide plate is sloped so that the suction port side is low and the other side is high. dust equipment.