JPH081639Y2 - Oscillating sorting device for thresher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a swing sorting device for a thresher mounted on a combine, a harvester or the like.

2. Description of the Related Art As a swinging sorting device for a threshing machine mounted on a combine, etc., a plurality of horizontal rails that are located above the Glensieve and whose mesh can be adjusted from below the net of the handling room to below the net of the processing chamber ( Equipped with a swinging sorter having a chaff sheave consisting of movable fins, the size of the chaff sheave is variable and the amount of leakage from the handling room is large (when high efficiency occurs when a large number of objects are to be processed or when processing objects are generated. It has been proposed that it is possible to deal with such problems as when the efficiency is low and the efficiency is low).

Problems to be Solved by the Invention By the way, when the chaff sheave composed of the movable fins has a relatively thick layer state of an object to be treated such as grains on the chaff sheave,
Heavy items such as grains are separated in the downward direction, and light items such as straw scraps and broken branches are in the state of being separated in layers above them, so only the grains below are dropped and the layered selection is performed well. When the layered state of the product becomes thin, the grain and the culm and the like leak together and leak onto the Glensieve, and the crushing and the like in the No. 1 mouth cannot be avoided. In particular, most of the grains in the lower layer tend to fall from the mesh on the front half of the chaff sheave (closer to the start end), so the layer state becomes thin on the latter half (closer to the end), and there is no choice. There is an inconvenience that many leaks such as breaks occur. In addition, in the case where the processing cylinder is arranged from the end of the handling cylinder to the rear of the machine (from the lower side in the grain culm transfer direction), the cut pieces shredded in the processing chamber leaked from the processing chamber receiving net. Dropped to the second half of the chaff sheave, 1
It leaks into the mouth and mixes with the grain after careful selection, making the first selection worse.

In order to solve the problems, the present invention provides a chaff sheave composed of a plurality of movable fins which are located above the gren sheave and whose meshes can be adjusted from the lower part of the net of the handling chamber to the lower part of the net of the processing chamber. In the thresher provided in, the movable fin of the plurality of movable fins located on the lower side in the workpiece transfer direction is provided over a predetermined width where the workpiece is leaked from the processing chamber only in the lower portion of the processing chamber. The above problem is solved by bending the upper edge of the upper part downwardly on the rear side.

Action Most of the grain leaks out and the layer state becomes thin. The upper edge of the movable fin located on the latter half side of the chaff sheave is leaked from the processing chamber only in the lower portion of the processing chamber. Since it is bent downward over the width, the entrance of the mesh becomes small only at the bent part, and the grain in the object to be processed leaks while the culm is stuck in the mesh of the movable fin or the mesh. The chaff sheave is smoothly transferred as it is without being leaked from the outlet, and is discharged from the end to the direction of No. 2, so that no cuts or the like are mixed into No. 1.
On the other hand, since the bent portion is not provided on the other side of the upper edge, the mesh becomes large, and the ventilation is quickly performed, so that the air sorting function can be promoted and the culling can be prevented from entering the mesh.

Embodiment The configuration of the present invention will be described with reference to an embodiment shown in the drawings.

In the figure, A is an upper handling type thresher mounted on a combine or the like, which conveys grain culms by a feed chain 1 and has a handling chamber 2a having a handling barrel 2 and one end of the handling chamber 2a (feed chain 1). Side) to a lower side in the grain culm transfer direction, and a threshing section B including a processing chamber 3a having a processing body 3 disposed therein, and a No. 1 grain (grain) threshed by the threshing section B, cuttings and adhering branch shoots. It is configured by a sorting unit C that sorts a processed object such as a second object such as a grain and a third object (dust discharged) such as a broken rice cake and a straw waste, and discharges the collected grain or the outside of the machine. An oscillating sorting body 4 is provided in the sorting air passage D of the sorting unit C, and while transporting the object to be processed substantially parallel to the grain culm transport direction by the feed chain 1,
It is designed to sort garbage, dust, and dust. That is, a transfer plate (corrugated plate in the illustrated example) that is located below the receiving net 5 in the handling chamber 2a and is above the starting end side of the sorting air passage D and has no holes.
6, a chaff sheave 8 constituted by a plurality of laterally adjustable crosspieces 7 is continuously provided on the transfer end side of the transfer plate 6, and a gren sheave 9 is also provided below the chaff sheave 8. A stroll rack 10 is disposed in front of the Glensieve 9, and a swing selecting body 4 including these transfer plate 6, chaff sheave 8, Glensieve 9 and the like is erected on a frame-shaped swing body 4a and swings not shown. The drive mechanism is designed to swing integrally in the front-rear direction. 3b is a processing room receiving network.

In addition, the above-mentioned Glen Sieve 9 is a transfer plate whose front half is non-perforated.
9a and a crimp net 9b in the latter half of the latter are arranged in an up-and-down stepped manner, and a transfer plate 9c having no holes is interposed between the two 9a and 9b so as to be adjustable forward and backward.

11 is Kara Minoh, 12 is the 1st spiral provided at the 1st mouth 12a, 13 is 2
The second spiral provided on the number opening 13a, 14 is a suction fan, 15 is a straw chain, and 16 is a second reduction cylinder, and its discharge port is exposed on the swinging and sorting body 4. Reference numeral 17 denotes a No. 4 flow plate, the lower end of which is inclined above the end of the chaff sheave 8. Below the starting end of the crimp net 9b, the first compressed air fan 18 is
A second compressed air fan 19 is arranged between the 1st spiral 12 and the 2nd spiral 13, and these compressed air fans 18 and 19 are respectively composed of sirocco fans that extend over substantially the entire width of the sorting air passage. .

The chaff sheave 8 is configured as follows. That is, the front and rear of the pair of left and right side frames 20, 20 are integrally fixed by the fixing fins 23 via the brackets 21 and the bolts 22, so that the movable fin mounting frame has a strong frame structure. In the illustrated example, the side frames 20,2
Two fixed fins 23 are also provided in the middle part of 0 to further increase the strength of the side frame. And fixed fin 23,23
A large number of movable fins 24, 24a, 24b are mounted between the movable fins 24, 24a, 24b so as to be swingable in the front-rear direction, and are obliquely arranged in the front-rear and vertical directions so that the rear side is high and the front side is low in a side view. U-shaped pin with one end rotatably supported on the side frame
It is fixed to 25 and the other end of the U-shaped pin 25 is pivotally connected to the connecting plate 26. In addition, bending pins 27a, 28 pivotally connected to the plate 26 are provided at both ends on the upper surface of the lower surface of the movable fins 24a, 24b on the inner end side.
Shafts 27 and 28 having a are fixed, arms 29 and 30 are fixed to the shafts 27 and 28, respectively, and both arms 29 and 30 are fixed to the plate 31.
To form a link mechanism M, and the left and right side frames 2
A chaff sheave assembly T is constructed by fixing an L-shaped bracket 32 for attachment to the swinging main body 4a to bolts 0 and 20 with bolts 33. 34 is a bolt for attaching the chaff sheave assembly T to the swing body 4a, 35 is a bolt hole for the bolt, 36 is a movable fin 24, 2
Actuating wires 4a and 24b are connected to an operating lever (not shown). 37 is a return spring and 38 is a threshing side plate.

By the way, among the plurality of movable fins 24, 24a, 24b, the movable fin located on the lower side in the workpiece transfer direction has the upper end edge thereof leaking from the processing chamber 3a only in the lower portion of the processing chamber 3a. The upper edge is bent rearward downward over a predetermined width.

In the illustrated example, there is no upward bent portion from the front half portion of the chaff sheave 8, that is, from the start end portion of the chaff sheave 8 to the portion corresponding to the substantially end portion of the handling chamber 2a, and the lower end edge (front direction) of the fin is bent upward. A movable fin of a normal shape having only a bent downward bent portion a, and the movable bent located on the lower side in the workpiece transfer direction than that has a lower bent portion a and a fin upper edge (rearward direction) having the lower bent portion a. The upper bent portion b is bent downward in the opposite direction.

In the illustrated case, the upper bent portion b is provided not in the entire width of the movable fin but in the lower portion of the processing chamber 3a, and is provided only in a predetermined width portion of the object to be leaked from the processing chamber 3a ( (See FIG. 5 and FIG. 6) The structure is designed to prevent rubbing of the culm and prevent the selection air from passing through the chaff sheave 8 as much as possible.

In the above configuration, the rocking main body 4a constantly rocks in the front-back direction during threshing work, and the object to be processed on the rocking / sorting body 4 moves back and forth to move heavy objects such as grains to lower layers. The lighter ones are transferred to the upper layer in a layered state forward (stratified sorting), and the wind sorting is performed by the sorting wind in the sorting section C, and the grains (fine grains) leak through the crimp net 9b and the first mouth 12a. In addition, the 2nd products such as the cuttings and the branches attached to the branch shoots are collected at the 2nd port 13a and spirally transferred to the one side of the fuselage. Collected in a hopper or the like, the second product is sent to the rocking sorting body 4 for re-sorting processing, and straw waste such as straw waste is discharged outside the machine.

By the way, on the chaff sheave 8, the grains such as grains and straw scraps that have leaked from the handling chamber receiving net 5, the second reduction product such as the panicle, and the grains that have leaked from the latter half of the processing chamber receiving net 3b. And the culm and the like come together and receive a layered sorting effect. Then, the grains in the lower layer drop on the grain sheave 9 from the mesh in the process of being transferred through the chaff sheave 8, and the layer state gradually becomes thin. Therefore, near the terminal end of the chaff sheave 8, light debris, culm, etc. in the upper layer are likely to drop together with the grain, and especially the processing chamber receiving net 3b.
The culm, etc. that leaked from the chaff sheave 8 to the chaff sheave 8 stabs in the eye and falls onto the Glen sheave 9 as it is, and mixes into the 1st port 12a from the end of the sill and deteriorates the 1st selection. At the upper edge of the movable fin located on the rear half side, an upper bent portion b bent downward at the rear side thereof.
Is provided, and since the mesh of the portion is not small, such inconvenience is surely eliminated. Also, the movable fin
If the upper bent portion b is provided on all of 24, 24a and 24b, not only the leakage rate of the grain is lowered but also the sorting air is not easily discharged and the sorting performance is remarkably deteriorated.
The movable fins located at the main parts of the processing chamber 3a are not provided with the upper bent portions b and do not have a bad influence on the leakage of the grain. Since the inlet of the mesh is made smaller by the bent portion b, the grain in the object to be processed falling from the processing chamber 3a is quickly leaked, and the cutting of the culm is prevented by the movable fin. Without letting the mesh leak out or sticking to the mesh to cause clogging, the chaff sheave is smoothly transferred to the rear as it is, and discharged from the end toward the No. 2 mouth to cut off It is possible to satisfactorily prevent mixing into the No. 1 mouth. On the other hand, since no bent portion is provided on the other side of the upper edge, it is possible to enhance the mesh and promote the air sorting action to perform good sorting.

Effect of the Invention As described above, the present invention is a threshing provided with a chaff sheave including a plurality of movable fins which are located above the Glen sieve and whose mesh can be adjusted from the lower side of the net of the handling chamber to the lower side of the net of the processing chamber. In the machine, among the plurality of movable fins, the movable fin located on the lower side in the workpiece transfer direction is
Only in the lower part of the processing chamber, the workpiece is leaked from the processing chamber over a specified width, and the upper edge of the processing chamber is bent downward to the rear side. It can be prevented from being clogged up, passing through the chaff sheave mesh and falling on the Glensieve, and since the bent part is not provided on the other side of the above-mentioned upper edge, the mesh becomes large and the wind sorting action can be promoted. It is possible to minimize the mixing of culm into No. 1 mouth, but it is possible to further improve the sorting performance without hindering the leakage of grains and the escape of the sorting air especially on the latter half of the chaff sheave. effective.

[Brief description of drawings]

The drawings show one embodiment of the rocking / sorting device of a thresher according to the present invention. Fig. 1 is a schematic side view of a thresher equipped with the present invention, and Fig. 2 is a side view of a chaff sheave and a Glensieve. Fig. 3 is a perspective view of a chaff sheave, Fig. 4 is a partially cutaway front view of a chaff sheave, Fig. 5 is a rear view of a threshing machine, and Fig. 6 is a perspective view of a movable fin provided with an upper bending portion. It is a figure. A ... Threshing machine, B ... Threshing section, C ... Sorting section, D ... Sorting air passage,
2 ... handling cylinder, 3 ... processing cylinder, 3a ... processing chamber, 3b ... processing chamber receiving net,
5 ... Handling room net, 8 ... chaff sheave, 9 ... Glen sieve,
12a ... Port 1, 13a ... Port 2, 24, 24a, 24b ... Movable fins.

Front page continued (72) Inventor Takao Komura, 667 Izaiya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Agricultural Machinery Co., Ltd. (72) Creator Yoichi Yamane, 667, Isuyacho, Hijizumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Masayuki Mori (56) Reference JP-A-3-94612 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A thresher provided with a chaff sheave composed of a plurality of movable fins, which is located above the Glen sieve and is adjustable from the lower side of the net of the handling chamber to the lower side of the net of the processing chamber, in the front-rear direction. Of the plurality of movable fins, the movable fin located on the lower side in the workpiece transfer direction extends over a predetermined width where the workpiece is leaked from the processing chamber only in the lower portion of the processing chamber, and the upper edge of the movable fin faces rearward downward. A rocking and sorting device for a thresher, which is characterized by being bent into.