JPH078103A - Oscillating sorting structure of thresher - Google Patents

Abstract

(57) [Summary] [Structure] A sorting case 8 having a Glen pan 13 and a Glen sieve 15 is disposed below the handling chamber, and a sorting drive mechanism for imparting a swinging motion to the sorting case 8 in the front-rear direction. 9 is provided, and in the sorting case 8, the Glen sieve 1
5 is provided with a guide portion 20 for movably moving in the front-rear direction, and further, between the gren sheave 15 and the selection driving mechanism 9, the gren sheave 15 is moved in the front-rear direction with respect to the selection case 8 that swings in the front-rear direction. An interlocking mechanism 21 for relative movement is interposed. [Effect] By promoting the separation action between the grain and straw waste in the threshed material located on the Glen Sieve, it is possible to improve the leakage screening performance of the Glen Sieve. Even under the condition that the threshing treatment amount is increased, it is possible to perform a good leakage screening treatment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises, below a handling room, a grain pan for selecting a threshing product supplied from the handling room by specific gravity and a grain sieve for screening down the grains in the threshing process product. The present invention relates to an oscillating sorting structure of a threshing machine, in which a sorting case is provided, and a sorting drive mechanism that imparts a swinging motion along the front-rear direction is provided to the sorting case.

[0002]

2. Description of the Related Art Conventionally, in the swing sorting structure of this type of threshing machine, the sorting drive mechanism always gives a certain swinging motion to the sorting case to integrally integrate the grain sieve fixed to the sorting case. The threshing processed material supplied from the handling room is gravity-sorted, and then the grain located in the lower layer in the threshing-treated material is leak-sorted by this gravity sorting. , JP-A-5-15248).

[0003]

In the conventional swing sorting structure, since the Glen pan, the Glen sieve, etc. swing together with the sorting case, the threshing treatment object located on the Glen sieve and the portion other than the Glen sieve are located. Both the threshing material and the threshing material located will repeat the same movement monotonously, and as a result, the separation action between the grain and the straw waste, etc., on the grain sieve that controls the leakage selection processing, in particular, is not promoted. The leakage selection performance was reduced by that much. Even in this case, if the amount of threshed products supplied from the handling room is less than or equal to the set amount, good leakage selection processing can be performed. The amount of threshing treatment per unit time may increase beyond the set amount due to fluctuations in the grain state and the amount of grain culm input. In particular, in recent years, threshing work has been speeded up, or this type of threshing machine has been installed. For combine harvesters, there is a demand for faster mowing and threshing work.
The amount of threshing treatment per unit time tends to increase. When the threshing treatment amount per unit time is increased in this way, conventionally, the separation effect between the grain and the straw debris on the grain sieve is poor, so that not only the recovery efficiency as the first product decreases. However, there is a problem that the grain loss increases due to the grains being mixed with the straw and discharged outside the machine. The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to impart a complicated motion to the threshed material to be supplied on the grain sieve, and the grains and straw in the threshed material. The point is to promote the separation action from wastes and the like, and to make it possible to perform a good leakage selection process even under conditions where the threshing process amount per unit time is increased.

[0004]

In order to achieve the above object, in the swing sorting structure of the thresher of the present invention, in the structure described above, the grain sheave is guided to the sorting case so as to be movable in the front-rear direction. With a guide part to
Between the Glensieve and the sorting drive mechanism or between the Glensieve and the threshing case, there is an interlocking mechanism for moving the Glensieve in the anteroposterior direction relative to the sorting case that swings along the anteroposterior direction. It is a feature, and the actions and effects of it are as follows.

[0005]

The swing drive along the front-rear direction is applied to the entire sorting case by the sorting drive mechanism, and at the same time, the grain sieve is moved in the front-rear direction relative to the sorting case. By performing different motions with threshing products located in parts other than, and by adding the impact action due to the collision of threshing products, the grains and straw waste in the threshing products on the Glensieve It is possible to accelerate the separation action from.

[0006]

Therefore, by promoting the separating action of the grains and the straw scraps in the threshed material located on the Glensieve, it is possible to improve the leakage screening performance of the Glensieve. Even under the condition that the threshing treatment amount per unit time is increased, a good leakage screening treatment can be performed.

[0007]

【Example】

[First Embodiment] Fig. 1 shows a combine-mounted threshing machine,
A handling chamber 2 and a dust treatment chamber 3 are formed in the upper half of the threshing case 1 along the front-rear direction, and a sorting treatment chamber 4 is formed in the lower half of the threshing case 1. ing.
In the handling chamber 1, a handling barrel 5 that is driven and rotated around a horizontal axis along the front-rear direction is installed, and the handling barrel 5 is also installed.
On the lower half portion side, a receiving net 6 that extends along the trajectory of the handling tooth tip of the handling cylinder 5 is stretched. The dust treatment chamber 3
A dust-exhausting fan 7 is provided to discharge dust generated in each of the handling chamber 2 and the sorting chamber 4 to the outside of the machine. A sorting case 8 and the sorting case 8 are provided in the sorting processing chamber 4.
A sorting drive mechanism 9 for imparting a rocking motion along the transfer direction (front-rear direction) of the threshing processed product, a karakono 10 that generates a sorting wind, and a grain storage tank that collects the sorted most grain and collects the grain. And the like, and the second item recovery unit 12 that collects the sorted second grain and returns it to the front side of the sorting case 8 (toward the transfer direction of the threshing treated product).
And are provided. As shown in FIGS. 1 and 2, the sorting case 8 has a grain pan 13 for specific gravity sorting of the threshing-treated product leaking from the receiving net 6, and the threshing-treated product at a position behind the grain pan 13. Roughly sorting chaff sheaves 14 for leak-through sorting, grain sieve 15 for fine sorting for leak-through sorting of threshing products leaked from the chaff sheave 14, straw rack 16 for leak-through sorting of grains in straw, The second straw rack 1 for receiving the threshing material falling from the opening 17 formed in the rear portion of the net 6.
8. The 2nd Glen pan 19 which carries out specific gravity selection of the threshing thing which falls from the 2nd Stroke rack 18 concerned is provided. Further, in the sorting case 8, the Glen sieve 1
A guide portion 20 for guiding the movable portion 5 in the front-rear direction is provided, and between the gren sheave 15 and the sorting drive mechanism 9, a gren sheave with respect to the sorting case 8 that swings in the front-rear direction. An interlocking mechanism 21 that relatively moves 15 in the front-rear direction is interposed. Next, the structure of the sorting drive mechanism 9 will be described. As shown in FIGS. 1 and 2, the left and right side plates 1a, 1b of the threshing case 1 are shown.
A rotary shaft 23 driven by the belt transmission 22 is installed over the entire length of the side plate 1.
An eccentric cam 24 is fixed to each of the shaft end portions located near the outer surfaces of a and 1b. Further, each of the pair of left and right fixed support shafts 25 fixed to the inner surfaces of the side plates 1a and 1b,
The lower ends of the swing arms 26 are rotatably pivotally attached, and the upper ends of the swing arms 26 are attached to a pair of left and right brackets 27 fixed to the rear wall 8a of the sorting case 8 with a first pivotal support shaft. A free end of a cam floor 29, which is rotatably pivotally mounted via 28 and is externally fitted to and held by each of the eccentric cams 24, has a swing arm 26 opposed thereto.
Is pivotally attached to an intermediate portion of the shaft via a second pivotal connecting shaft 30. Further, a U-shaped guide rail 31 is fixed to each of the side plates 1a and 1b of the threshing case 1 in an inclined posture that is slightly rearward and upward, and the left and right sides of the front side of the sorting case 8 are fixed. Rollers 32, which are guided to roll in the front-rear direction along the guide rails 31, are attached to the respective side portions. Then, the swinging motion of both swinging arms 26 due to the eccentric rotation of both eccentric cams 24 of the rotary shaft 23,
Due to the forward / backward movement caused by the roller 32 rolling along the guide rail 31, the entire sorting case 8 repeats the swinging movement along the forward / backward direction.

As shown in FIGS. 2 and 3, the guide portion 20 is provided in the vicinity of the bottom surface of the sorting case 8 with the gren sheave 1.
A first guide rail 20B for rollingly guiding each of front rollers 20A attached to both left and right sides on the front end side of No. 5 in the front-rear direction.
And a second roller 20C that rolls and guides each of rear rollers 20C attached to both left and right sides on the rear end side of the Glensive 15 in the front-back direction.
It is configured by fixing the guide rail 20D. The linkage mechanism 21, as shown in FIGS. 2 and 3,
With the swing arm 26 on the side where the belt transmission 22 is present,
Also, the first connecting rod 34 pivotally connected to the third pivot connecting shaft 33 fixed to an intermediate arm portion between the second pivot connecting shaft 30 and the fixed pivot 25, and the Glensive 1
The second connecting rod 35 pivotally connected to the bracket 15a of No. 5 and the turnbuckle portion 36 connecting the two connecting rods 34, 35 in a freely adjustable manner. Then, when both swinging arms 26 swing with the eccentric rotation of both the eccentric cams 24 of the rotary shaft 23, the swinging of one swinging arm 26 is transmitted to the gren sheave 15 via the linkage mechanism 21, The Glensieve 15 is reciprocally moved in the front-rear direction along the first guide rail 20B and the second guide rail 20D. At this time, the grain sieve 1
The swinging radius from the fixed support shaft 25 to the third pivot support connecting shaft 33 that governs the movement width of 5 in the front-rear direction is the selection case 8 described above.
From the fixed support shaft 25 that controls the swing width in the front-back direction of the
Since the swing radius to the pivotal connecting shaft 28 is smaller than the swing radius, the grain sheave 15 moves in the front-rear direction relative to the sorting case 8 that swings in the front-rear direction. Reference numeral 37 in FIG. 1 denotes a volume sensor that detects the flow rate (processing amount) of the threshing processed material on the chaff sheave 14.

[Second Embodiment] FIG. 4 shows another embodiment of the linkage mechanism 21, in which the tip end portion of the first linkage rod 34 is a fixed support shaft which is a constituent member of the selection drive mechanism 9. 25 and the sorting case 8
The upper end of a swinging link 40, which is detachably engaged with the tip of the second linking rod 35, is pivotally attached to the side plate of the second linking rod so as to swing back and forth, and the second linking rod 35 is attached to the moving link 40.
A plurality of mounting holes 40a for the distal end of the and a long hole 40b into which the interlocking pin 41 of the grain sheave 15 is inserted are formed. By selecting the mounting position of the second link rod 35 with respect to the plurality of mounting holes 40a of the swing link 40, it is possible to switch the movement width of the grain sheave 15 in the front-rear direction in a plurality of steps.

[Other Embodiments] In each of the above-described embodiments, the linkage mechanism 21 is interposed between the grain sheave 15 and the sorting drive mechanism 9, but the linkage mechanism 21 is used for the grain sieve 15 and the threshing case 1 ( It may be carried out by interposing between the threshing case 1 and a member fixed to the threshing case 1). The linkage mechanism 21 may have any structure as long as it can relatively move the grain sheave 15 in the front-rear direction with respect to the sorting case 8 that swings in the front-rear direction. The selection drive mechanism 9 is not limited to the structure of the above-described embodiment, but may be changed to another structure such as a crankshaft drive type. In the above-described second embodiment, the operation of changing the mounting position of the second linkage rod 35 with respect to the swing link 40 is
The operation may be performed by an operation lever or the like arranged outside the threshing case 1, and the volume sensor 37 (see FIG.
It may be configured such that it is automatically changed based on the detection signal of (see).

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a sectional side view of the entire thresher showing the first embodiment.

FIG. 2 is an enlarged cross-sectional side view of a swing selection unit.

FIG. 3 is an enlarged rear view of the sorting drive mechanism and the linkage mechanism.

FIG. 4 is an enlarged sectional side view showing a second embodiment.

[Explanation of symbols]

 1 Threshing Case 2 Handling Room 8 Sorting Case 9 Sorting Drive Mechanism 13 Glen Pan 15 Glen Sieve 20 Guide Part 21 Linkage Mechanism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshinobu Kawamoto 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Tetsuji Nagata 64, Ishizukitamachi, Sakai City, Osaka Manufacturing Kubota Sakai Corporation (72) Inventor Kiyoshi Tomiga 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Inventor Masaru 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (1)

[Claims] 1. A Glen pan (1) below the handling chamber (2) for specific gravity selection of threshing products supplied from the handling chamber (2).
3) and a sorting case (8) provided with a grain sieve (15) for leak-through sorting of grains in the threshed material are provided, and a swinging motion along the front-back direction is given to this sorting case (8). In the swing sorting structure of the threshing machine provided with the sorting drive mechanism (9), a guide part (2) for guiding the Glen sieve (15) to the sorting case (8) so as to be movable back and forth.
0) is provided, and the sorting case (8) swinging along the front-back direction is provided between the Glen sieve (15) and the sorting drive mechanism (9) or between the Glen sieve (15) and the threshing case (1). ), A swinging selection structure of a thresher having a linkage mechanism (21) for moving the Glensieve (15) relatively in the front-rear direction.