JP2512827Y2 - Sorting equipment in thresher - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a sorting device for a thresher mounted on a combine, a harvester, and the like, and more specifically, a second object in front of an oscillating sorting body equipped on the thresher. The present invention relates to a threshing machine sorting apparatus in which a sieve sheave for sorting is provided, and a partition wall of the second material return flow plate provided on the front side of the sheave sheave is provided with a step portion whose side on which the suction fan is located is lowered.

[Prior art]

As shown in FIG. 1, in the thresher T, an oscillating sorting body 20 is arranged below the handling chamber 5, and a shake sheave 16 for mainly sorting a second object is slanted in front of the oscillating sorting body 20. The first blower fan 21 or the second blower fan 26 is provided between the lower part of the chamber sheave 16 and the second product return flow plate 30 which is connected to the second product receiving gutter 27. As the wind blows through, the second object that dropped from the rack interval of the multiple sheaves on the sheave 16 is the second object return flow plate 30.
It has a structure that slides down and is stored in the second one 27.

In addition, the first blower fan disposed below the swing sorting body 20.
21 and 2nd blast fan 26 select air from the chamber
While being blown between the second material return flow plate 30 and the second object return flow plate 30, it joins the suction air of the suction fan 34 on the front side arranged on one side of the machine wall and is discharged to the outside of the machine. Return plate 30
The partition wall 31 provided on the front side of the was provided at the same height over the entire width.

[Problems to be solved by the invention]

By the way, as described above, when the partition wall 31 provided on the front side of the second return flow plate 30 is provided at the same height over the entire width, the fan case 34a covering the suction fan 34 is located on one side of the machine wall. As a result, the sorting air from the blower fan tends to be weaker on the side where the suction fan 34 is located and stronger on the side away from the suction fan 34. There was a drawback that the amount of straw waste mixed in the reduced product increased.

Also, on the front side of the partition wall where the suction fan 34 is located,
Due to the position of the fan case 34a, a swirl is likely to be generated, and the straw waste tends to be stagnant.

In view of the above-mentioned conventional circumstances, the present invention was devised to eliminate the drawbacks. The partition wall of the second return flow plate has a higher side away from the suction fan and a lower side on which the suction fan is located. It is an object of the present invention to provide a sorting device for a thresher that can provide a sorting wind that blows through a sheave sheave substantially uniformly over the entire width by providing a stepped portion.

[Means for solving problems]

The present invention that achieves the above object is provided with a chamber sheave on the front side of an oscillating sorting body disposed below the handling chamber, and swings between the chamber sheave and the second product return flow plate connected to the second product trough. In a thresher that allows the sorting air of the blower fan disposed below the dynamic sorting body to join with the suction air of the suction fan disposed on one side of the machine wall while passing through, on the front side of the second product return flow plate. The partition wall provided is provided with a step portion that is higher on the side away from the suction fan and lower on the side on which the suction fan is located.

[Action]

Therefore, the chive sheave 16 is provided on the front side of the rocking sorting body 20 arranged below the handling chamber 5, and between the chive sheave 16 and the second number return flow plate 30 connected to the second number trough 27. A thresher in which the sorting air of the first blower fan 21 or the second blowing fan 26 arranged below the rocking sorter 20 merges with the suction wind of the suction fan 34 arranged on one side of the machine wall while passing through Even at T, the partition wall 31 provided on the front side of the second article return flow plate 30
In this case, by providing the step portion 49 in which the side away from the suction fan 34 is high and the side on which the suction fan 34 is located is low, a flow of the sorting air that joins the suction air through the low step portion 49 is generated, and as a result, the sieve sheave 16 and The sorting wind that blows through between the secondary product return flow plate 30 can be made substantially uniform over the entire width.

Further, the vortex generated on the front side of the partition wall on the side where the suction fan 34 is located is eliminated, and the stagnation of straw waste is prevented.

As a result, the amount of straw waste mixed in the second reduced product is reduced, and as a result, the amount of straw waste mixed in the grain can be minimized.

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be described.

As shown in FIG. 1, the thresher T is provided with a handling barrel 2 which rotates about a handling barrel shaft 1 arranged in the front-rear direction, and handling teeth 3 are planted on the outer periphery of the handling barrel 2. The handling cylinder 2 is arranged in a handling chamber 5 surrounded by a receiving net 4 made of a perforated iron plate. At the handling port 8 that is open to one side of the machine wall of the handling chamber 5, there is disposed a grain culm pinching / conveying mechanism 9 composed of a lower feed chain 6 and an upper side clamping rail 7.

A discharge port 8a (see FIG. 2) that is continuous with the handling port 8 is opened in the front side machine wall 5a of the handling chamber 5, and threshing that is discharged from the discharge port 8a is performed in front of the handling port 8a. No. 4 mouth is provided to collect the stab kernels mixed in the straw, and the stab kernels that have fallen are returned to the No. 10 mouth in front of this No. 10 mouth. A fourth return flow plate 11 is provided for this purpose.

A swinging sorting body 20 extending in the front-rear direction from the lower side to the rear side of the handling chamber 5 is arranged, and the lower side of the swinging sorting body 20 is a sorting chamber through which the sorting wind blows from the rear to the front. The oscillating sorter 20 is provided with a transfer plate 14 for receiving the grain removal that has leaked through the handling net 4 of the handling chamber 5 and transferring it obliquely downward, and a corrugated transfer surface connected to the lower stage of the transfer plate 14. The oscillating transfer sorting plate 12 has, the first sorting net 13 consisting of a crimp net connected in front of the oscillating transfer sorting plate 12, and the fourth port 10.
The second sheave that falls from the front side sheave sheave 16 which will be described later
A second product transfer / sorting plate 15 for swinging and moving, and a swing sheave 16 having a base end connected to the lower front end of the first sorting net 13 and a tip extending obliquely forward and upward are arranged on both left and right sides. They are integrally connected by a side plate 19 (see FIG. 1), and the swing selecting body 20 is supported by a swinging mechanism (not shown) so that the swinging movement is freely possible.

Further, a first blower fan 21 that blows out a sorting wind obliquely forward is disposed below and rearward of the swing sorting body 20.
Below the sorting wind passage through which the sorting wind of the blower fan 21 blows,
The first grain receiving gutter 22 located below the swing transfer sorting plate 12,
A first-most spiral 23 arranged inside the first-grain receiving trough 22 is arranged. The first grain selection trough 22 is connected and fixed to the first grain sorting flow plate 24 that extends obliquely upward to the bottom of the first sorting net 13, and the first grain sorting flow plate 24 swings and sorts. The first grain return flow plate 25, which is integrally fixed to the body 20 and has a partition wall in front of the tip of the first selection net 13, is provided oppositely. In addition, a second fan 26 is provided in the lower front of the first grain selection flow plate 24, and a second object receiving gutter 27 is provided in front of the second fan 26. A second object spiral 29 is arranged in the object receiving trough 27.

The sorting wind from the second fan 26 passes above the second catch gutter 27, passes between the racks of the chamber sheave 16, and blows upward, but below the chamber sheave 16, the swing sorting body 20 is blown. A second object return flow plate 30 for returning the second object that is integrally fixed to the sheave 16 and leaked from the sheave 16 into the second object receiving trough 27 is provided above the second object return flow plate 30. 16
Partition wall 31 that extends vertically with a space between it and the tip of
, A suction air passage 33 extending downward is formed between the partition wall 31 and the front wall 32 of the machine body. This suction air passage 33 is, as shown in FIG. It communicates with a suction fan 34 arranged on one side of the wall (the side where the handling opening 8 of the handling room is opened). Below the suction air passage 33, from the other side of the machine wall to the one side of the machine wall. A bottom plate 35 that is inclined toward the bottom and communicates with the suction port 34b of the suction fan case 34a at its lower end is provided.

Further, as shown in FIG. 2, on the other side of the machine wall of the handling chamber 5, a processing cylinder 37 that rotates about a processing cylinder shaft 36 arranged in the front-rear direction is used.
The processing cylinder 37 is provided with a rack of the sieve sheave 16 for receiving the second processed material from the dust supply port 39 opened on the end side of the handling chamber 5.
16b is configured to perform a grain removing process while being conveyed toward a discharge port 40 opened above, and a spiral blade 41a on the handling cylinder side, an intermediate processing blade 41b, and a discharge blade 41c on the outlet side are provided on the outer periphery thereof, respectively. At the same time, a receiving net 43 made of a perforated iron plate is stretched on the outer periphery of the processing cylinder 37, and the second object from the receiving net 43 is adapted to fall above the other side of the chamber sheave 16. The processing chamber 38 is constituted by.

At the end of the transportation of the grain-and-rice sandwiching and transporting mechanism 9 described above, there is provided an straw transporting mechanism 44 for continuously transporting the transported straw and carrying it out of the machine. A second food reduction fried food cylinder 45 whose lower part is connected to the gutter 27 and whose upper part extends upward is provided obliquely rearward, and the discharge port 45a provided above the second food fried food fried food cylinder 45 is It is opened to the other side of the machine wall, and is directed toward the transfer plate 14 located below the handling net 4 through a communication hole provided in the rocking side plate 19 of the rocking sorter 20 (not shown).
The second one stored in the second one 27 is the second reduction fried cylinder 45.
After being lifted by the above, it is returned to the transfer plate 14 and re-sorted by the swing sorting body 20. In addition, the first grain stored in the first grain receiving trough 22 is discharged to the outside of the machine through a fried cylinder (not shown).

As shown in FIGS. 2 and 3, at the upper part of the second material return flow plate 30, a protrusion 46 protruding downward from the partition wall 31 toward the lower side of the discharge port 40 of the processing chamber 38. Is provided,
The bottom plate 46a of the protrusion 46 is connected to the upper portion of the partition wall 31 in a substantially horizontal direction. In addition, as shown in FIG.
31 is provided at a height that is lower than the upper end of the protrusion 46 by the width distance X from the side where the suction fan 24 is located to the other side by the height S and is slightly higher than the uppermost height of the rack 16a of the rack sheave 16a. The partition wall 31 is provided with an adjusting plate 47 which is adjustable in height in the vertical direction over the width distance Y so that the suction fan 34 of the partition wall 31 is located on the side where the width S is lowered by a height S. A stepped portion 49 is formed. The adjusting plate 47 is provided with a vertically elongated hole 51a into which a mounting bolt 51 fixed to the partition wall 31 is fitted, and is vertically adjustable and fixable by a tightening operation of a screw nut 51b.

In this way, by providing the step portion 49 over the width Z in the partition wall 31 on the side where the suction fan 43 is located, a flow of the sorting air that joins the suction air of the suction fan 34 through the low step portion 49 is generated. As a result, the sorting air that blows between the sheave sheave 16 and the second material return flow plate 30 can be made substantially uniform over the entire width.

A mounting plate 52 that is inclined obliquely downward is fixed to the front side of the stepped portion 49 of the partition wall 31, and a guide plate 50 made of an elastic plate such as rubber is mounted on the upper surface of the mounting plate 52 with bolts or the like. Since the front side of the guide plate 50 is curved upward so as to elastically contact the inside of the front wall 32, the step portion
The sorting wind that joins the suction wind of the suction fan 34 through 49 smoothly flows along the guide plate 50, and it is possible to prevent the stagnation of the straw scraps that move along the sorting wind, and the swinging sorting body 20 swings. However, the guide plate 50 made of an elastic plate can be curved while maintaining contact with the front wall 32.

Further, this guide plate 50 can guide the straw waste discharged together with the bottom plate 35 in a funnel shape.

In addition, a large number of racks 16a that form the sheave 16
Among them, the plurality of racks 16b located on the other side of the machine wall away from the suction fan 34 are located lower than the other racks 16a by a height H so as to be close to the second article return flow plate 30.

As a result, the sorting air blown between the lower racks 16b can be made stronger than the other racks 16a.
On the side where the second treated product from the net 43 and the second treated product discharged from the discharge port 40 are added and increased, the straw waste is effectively blown away and the grain is returned to the second product return plate. Since it can be dropped onto 30 and stored in the second item receiving gutter 27, the second item receiving gutter 27
As a result, it is possible to reduce the amount of straw waste mixed in the second product stored in the transfer plate 14 and returned to the transfer plate 14. .

Also, the rack of the sheave 16 located on the processing chamber 38 side is
Since 16a has a step height H higher than the other racks 16a,
This is due to the fact that the second item is loosened at this step and the sorting wind is strong on the low rack 16b side, so even the straw of the leaking material is blown away and only the grain is dropped onto the second item returning flow plate 30. Since it can be stored in the batten 27, it is possible to reduce the amount of straw waste mixed in the bait 27 stored in the baton 27 and returned to the transfer plate 14, resulting in the most grain. The amount of straw waste mixed in is reduced and the selection can be improved.

[Effect of device]

As described above, according to the present invention, a chive sheave is provided on the front side of the swing sorting body disposed below the handling chamber, and between the chive sheave and the second item return flow plate connected to the second item trough.
Even in a thresher that is designed to join the suction air of the suction fan installed on one side of the machine wall while passing through the selection air of the blower fan installed below the swinging selection body, the second return plate By providing a stepped portion on the partition wall provided on the front side of the suction fan, the side that is farther from the suction fan and the side that is closer to the suction fan are lower, so that a flow of sorting air that joins the suction air of the suction fan is generated through this low step portion. As a result, the sorting air that blows between the sheave sheave and the second material return flow plate can be made substantially uniform over the entire width.

Further, the vortex generated on the front side of the partition wall on the side where the suction fan is located is eliminated, and the stagnation of straw waste can be prevented.

Therefore, as a result of reducing the amount of straw waste mixed in the No. 2 reduction product, the amount of straw waste mixed in the grain is reduced, and the selection of the grain can be performed best.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a vertical sectional side view of a thresher according to the present invention, FIG. 2 is a front view of essential parts, and FIG.
The figure is a cross-sectional plan view of the main part. T ... Thresher, 1 ... Handling barrel shaft, 2 ... Handling barrel, 4 ... Receiving net, 5 ... Handling chamber, 12 ... Oscillating transfer sorting plate, 13 ... First sorting net, 16 ... Cheave sieve, 17 ... Corrugated transfer Plate, 20 ... rocking sorting body, 21 ... first air blower fan, 26 ... second air blower fan, 30 ... second object return flow plate,
31 ... Partition wall of second material return flow plate, 33 ... Suction air passage, 34 ... Suction fan, 35 ... Bottom plate, 46 ... Projection part, 47 ... Adjustment plate, 49 ... Step part, 50 ... Guide plate.

Claims (1)

(57) [Scope of utility model registration request] 1. A swing sheave is provided on the front side of an oscillating sorter disposed below the handling chamber, and the swing sorter is provided between the sieve sheave and the second return flow plate connected to the second sort receiving gutter. In a thresher adapted to merge with a suction fan disposed on one side of the machine wall while the selected wind of the blower fan disposed below blows through, in the partition wall provided on the front side of the second product return flow plate, A sorting device for a thresher having a stepped portion in which the side farther from the suction fan is higher and the side closer to the suction fan is lower.