JPH0620365Y2 - Sorting equipment in thresher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a sorting device in a threshing machine that swings and sorts threshed unhandled items.

[Problems to be Solved by Prior Art and Invention] Generally, in this type of threshing machine, in order to perform swing selection of threshed items that have been threshed in the handling room, a feed plate is provided along with the sorting air passage. An oscillating sorting body is provided which is connected to a sorting leak body such as a sorting net. However, it is necessary to adjust the sorting performance according to the condition of the material to be sorted, such as the difference in the variety of rice and wheat, the difference between the dry material and the wet material.

Therefore, the leaking area of the sorting leaker can be adjusted to be expanded or contracted by the closing plate, and the swinging flow plate is arranged on the lower side of the air passage of the sorting leaking body, and the swinging flow plate swings the sorting leaking body. There is a device in which the gap between the oscillating flow plate and the rocking flow plate can be adjusted. In this case, it is operationally preferable to perform a series of adjustment operations of the closing plate and the rocking flow plate, and conventionally, the closing plate and the rocking flow plate have been connected via a link mechanism. However, when the adjusting operation is performed, the displacement amount and the displacement direction of the closing plate and the rocking flow plate are largely different, so that the link mechanism is inevitably complicated, and the movement is heavy and not smooth. There are drawbacks such as, and there is a problem.

On the other hand, as shown in Japanese Utility Model Laid-Open No. 61-125241, the cam plate is configured to swing by a predetermined angle in association with the displacement of the closing plate to the closing position. The link plate was connected to swing the swing plate so that the gap between the swing flow plate and the screening leak was reduced. However, since it is an indirect type with a cam plate interposed in the middle, there is a problem that the swing error is inevitably large and it is difficult to perform the swing operation of the swing flow plate with high accuracy. Moreover, since the cam plate and the link plate are exposed as they are, foreign matters such as straw are likely to be accumulated there, and the accumulated foreign matter prevent smooth oscillation operation of the oscillating flow plate. There is also a problem that the swing angle is changed due to foreign substances being caught between them.

[Means for Solving the Problem] The present invention was devised with the object of providing a sorting device for a thresher capable of eliminating these drawbacks in view of the above-mentioned circumstances, and a sorting wind In a thresher having an oscillating sorting body in which a feeding plate and a sorting leaking body are connected along a path, between the feeding plate and the sorting leaking body, a storage position and a sorting leaking body which are superposed on the feeding plate A displaceable closing plate is provided at a closing position that closes a part of the closing plate, and the closing plate is configured to be displaced by a movement operation of an operating body provided integrally with the closing plate. Is provided with a swinging flow plate configured to be swingable so that the gap between the sorting leaking body can be adjusted to be wide or narrow, and is integrally formed with a support shaft of the swinging flow plate so as to swing together with the swinging flow plate. A cam body that is provided on the lower side of the air passage to face the above-mentioned actuating body. Is inclined toward the lower side of the air passage relative to the moving direction of the actuating body when it is separated from the sorting leaking body, and faces the moving direction of the working body when it is close to the sorting leaking body. A camshaft that tilts downward on the lower side of the air passage is formed at the lower side of the air passage in a state where the support shaft of the rocking flow plate is fitted inwardly from the lower side of the air passage and the closing plate is located at the storage position. The body touches the lower side, and the movement of the closing plate toward the closing position causes the cam body to press and oscillate, transforming it into a posture that faces the moving direction of the operating body, and the cam body moves in the upper and lower sides. It is characterized in that a cam body actuating portion for guiding the accommodation as it is is formed.

Further, according to the present invention, with this configuration, the closing plate and the rocking flow plate can be directly connected to each other without using a complicated link mechanism.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 is a thresher, and the thresher 1 selects a thresher 3 for threshing stem culms by a sling barrel 2 and a selection of untreated threshers that have been threshed in the threshing chamber 3. It is constructed by the chamber 4. The sorting chamber 4 is provided with members such as an oscillating sorting body 5, a Kara ware 6, a first spiral body 7, a second spiral body 8 and a dust collecting fan 9 which will be described later, and the like.

In the swing sorting body 5, a corrugated sheet-shaped sorting feed plate 11, a sorting net 12 as a sorting leaker, and a stroller rack 13 are sequentially arranged between a pair of left and right frame plates 10 from the upper side to the lower side of the sorting air passage. It is arranged continuously. Reference numeral 14 denotes a corrugated plate-shaped closing plate, which is arranged so as to be located between the vertical feed plate 11 and the sorting net 12.
A guide body 14a is integrally attached to the edge on the upstream side of the air passage, both ends of which are fitted into long-hole guide holes 10a provided in the frame plate 10. Then, the closing plate 14 is guided by the guide hole 10a and overlaps from the storage position where it is stacked below the sorting feed plate 11 to the upper surface of the sorting net 12 on the upstream side of the air passage to part of the sorting net 12. It can be displaced to a closing position that closes the screen, so that the mesh area of the sorting net 12 can be expanded or contracted by the dust.

On the other hand, 15 is a flow plate that guides the grains that have been dropped and sorted from the sorting net 12 to the side of the helix 7 most, and the wind of the sorting net 12 is provided at the upper end of the lower end of the flow plate 15 on the lower side of the air passage. An oscillating flow plate 17 is pivotally supported via a support shaft 17a so as to oppose the edge on the road side, and the gap with the sorting net 12 (forming a sorting air passage) is adjusted to be wide or narrow. It's ready. A cam body 18 is integrally provided at one end portion (left side in FIG. 3) of the support shaft 17a protruding from the frame plate 10, while the other end portion of the support shaft 17a protruding from the frame body 10 and the frame The rocking flow plate 1 is provided by the ammunition 22 inserted between the body 10 and the body 10.
7 is always urged in the direction in which the gap with the screening net 12 becomes wider (solid line in FIG. 4).

Further, 19 is an actuating member formed long in the direction of the air passage,
An end portion of the guide body 14a protruding from the frame plate 10 is integrally fixed to a base end portion of the actuation body 19, and a tip end portion of an actuation rod 20 is connected to the actuation body 19. The operating rod 20 is connected to an operating wire 21 and reaches a switching lever (not shown). On the other hand, a bullet 23 inserted between the tip of the operating body 19 and the frame plate 10 closes the operating rod 20 in the closing posture direction. In other words, it constantly urges toward the lower side of the wind path. By operating the switching lever to switch the operating member 19 back and forth in the airflow direction, the closing plate 14 can be switched between the storage position and the closing position. Here, the actuating member 19 has the guide hole 10
a guide and a guide piece 19a provided on the actuation body 19
Is guided by a guide plate 10b provided on the frame plate 10 so as to linearly slide in the front-rear direction.

Further, a cam body operating portion 19b having a substantially U-shaped groove portion in a side view is formed at the tip end portion of the operating body 19,
The operating portion 19b is notched so that the lower side end of the air passage on the lower side is located on the upper side of the air passage than the lower side end of the upper side, and effectively covers the cam body 18 and the support shaft 17a. However, the tip of the lower side has a cam body 18 that inclines downward toward the lower side of the air passage when the closing plate 14 is located at the storage position.
The rocking flow plate 17 in this state.
It is set on the lower side of the air passage by the urging force of 2 so as to widen the gap with the sorting net 12. On the other hand, when the operating body 19 is moved to the lower side of the air passage by the lever operation so that the closing plate 14 is displaced to the closing position side, the lower side of the lower air passage that abuts the cam body 18 of the operating portion 19b. The side end pushes up the cam body 18 to swing it into a horizontal shape and slides the cam body 18 into the groove as it is, whereby the swinging flow plate 17 resists the ammunition 22 and winds the air passage. It swings to the right side and is displaced to the side where the gap with the sorting net 12 becomes narrower.

Further, the stroller 13 has a corrugated plate-shaped feed plate 24 on the upstream side of the air passage, and the rack 25 projects from the feed plate 24 to the downstream side of the air passage. Is formed by connecting a pair of members so that the base end side has a shape, and the intermediate position of this connecting part is blocked by the feed plate 24, and the connection is made so as to project from the feed plate 24. The upper surface of the section constitutes a planar transport section 25a for the objects to be sorted.

In the embodiment of the present invention configured as described above, when threshing rice is performed, the area of the sorting net 12 is widened and at the same time, the oscillating flow plate 17 is separated from the sorting net 12 to increase the sorting efficiency. When threshing wheat, it is necessary to reduce the area of the screening net 12 and at the same time bring the oscillating flow plate 17 close to the screening net 12 to lower the screening efficiency. For this purpose, the closing plate 14 and the rocking flow plate 17 may be simultaneously switched and displaced by operating a lever (not shown).

As described above, in the embodiment of the present invention, the selection efficiency can be adjusted by simultaneously switching the blocking plate 14 and the oscillating flow plate 17. Is a cam body actuating portion 19b provided in the actuating body 19 necessary for displacing the closing plate 14 to the closing position side without interposing an intermediate member in the middle as in the conventional case.
Is moved to the lower side of the air passage, the cam body 18 inclined to the lower side of the air passage is forcibly pressed and oscillated to move the operating body 1.
9, so that the oscillating flow plate 17 oscillates toward the side where the gap with the sorting net 12 becomes narrower. Therefore, the swing of the rocking flow plate 17 toward the sorting net 12 side due to the displacement of the blocking plate 14 toward the closing position side,
As a direct product without intermediate members, a factory with swing accuracy can be measured.

Moreover, since the cam body 18 is adapted to be slidably fitted into the groove of the substantially U-shaped cam body actuating portion 19b, the portion where the cam body is slid and fit is the cam body actuating portion 1b.
After being covered by the upper and side edges of 9b,
It is possible to effectively avoid the accumulation of foreign matters such as straw debris on the slide fitting portion, and this and the direct rocking transformation operation by the cam body 18 of the rocking flow plate 17 are performed. Together
The oscillating deformation operation of the oscillating flow plate 17 accompanying the movement of the closing plate 14 can be performed smoothly and reliably, and highly accurate oscillating deformation can be performed, and efficient oscillating selection corresponding to threshing conditions. It can be performed.

Moreover, in this case, the boss portion of the cam body 18 is the operating portion 19b.
Since it has a structure of sliding contact with the upper and lower surfaces of the
Can regulate the inadvertent vertical vibration of the
This is convenient because it can greatly contribute to the prevention of backlash.

Further, in the embodiment, the stroller 13 is formed by connecting a pair of racks 25 in a shape at the base end side, which is advantageous in terms of strength, but the connecting portion is exposed to convey the transport portion 25a. Is formed. As a result, the objects to be sorted from the side of the sorting net 12 received by the feed plate 24 pass through the transport section 25a without the feed plate 24 before reaching the rack 25. Since the portion 25a is flat, the transfer of the sorted objects to the lower side is delayed. Therefore, the objects to be sorted on the transport unit 25a are subjected to the sorting action during the stagnation, and the leakage of the grains is promoted. Then, the leaked grains 25 are formed between the transport section 25a and at the site immediately before reaching the rack 25 from the transport section 25a.
Since it falls from b and is treated as a second product, the sorting performance can be greatly improved.

[Advantages] In short, since the present invention is configured as described above, the swing selecting body is provided with the closing plate and the swing flow plate in order to adjust the sorting efficiency. A series of displacement operations of the two are such that the cam body of the closing plate side operating body and the oscillating flow plate side cam body move linearly when the closing plate is displaced to the closing position. The body actuating part contacts the cam body and pushes it from the posture inclining downward on the lower side of the air passage to the posture facing the moving direction of the actuating body and slides it into the U-shaped cam body working part as it is. By doing so, it will be displaced in series.

Therefore, even if the displacement amount and the displacement direction of the closing plate and the oscillating flow plate are greatly different, the connection structure will respect the respective displacement directions without being affected by them, but in that case Since the cam body actuating portion for swinging the cam body is integrally provided with the working body for transforming the closing plate, the swinging body of the swing flow plate can be used as it is, without changing the swing body. In addition to being able to have the appearance, it is possible to achieve the simplification of the structure as well as the dual use of members and the reduction in the number of parts.

Moreover, the swinging deformation linked to the movement of the closing plate of the swinging flow plate accommodates and guides the cam body integrally provided on the support shaft of the swinging flow plate in the substantially U-shaped cam body operating portion. Since this is done directly, the rocking motion of the rocking flow plate is indirect, as in the case where it is carried out indirectly by interposing an intermediate member such as a link, and the rocking error is large. It is not forgiving that it will not be connected, and the structure can be greatly simplified.

In addition, the cam body operating part to which the cam body slides fits,
Since it has a substantially U shape and is covered on the upper side and the lateral side, it is possible to effectively avoid the accumulation of foreign matters such as straw debris on the portion where the cam body is housed and guided. When,
In combination with the direct rocking deformation operation of the rocking flow plate by the cam body, the rocking deformation operation accompanying the movement of the blocking plate of the rocking flow plate can be performed smoothly and reliably, and highly accurate rocking can be achieved. You can make dynamic changes,
It is possible to perform efficient swing selection corresponding to threshing conditions.

[Brief description of drawings]

The drawings show an embodiment of a sorting device in a thresher according to the present invention, in which FIG. 1 is a side view in which a part of the thresher is cut away, and FIG. 2 is a side view of a swing sorting body, FIG. 3 is an exploded perspective view of an essential part of the rocking / sorting body, FIG. 4 is an operation explanatory view showing the displacement between the closing plate and the rocking flow plate, and FIG. 5 is a sectional view taken along line AA of FIG. 6 is a sectional view taken along the line BB in FIG. 2, FIG. 7 is a perspective view of the straw rack, and FIG. 8 is a perspective view of the rack body. In the figure, 11 is a feed plate, 12 is a selection net, 14 is a closing plate, 1
7 is a rocking flow plate, 17a is its rocking support shaft, 18 is a cam body,
Reference numeral 19 is an operating member, and 19b is a cam operating portion.

Claims (1)

[Scope of utility model registration request] 1. A thresher having a swinging sorting body in which a feeding plate and a sorting leaking body are connected to each other along a sorting air passage, and the threshing machine is superposed on the feeding plate between the feeding plate and the sorting leaking body. A displaceable closing plate is provided at a storage position and a closing position that closes a part of the sorting leaking body, and the closing plate is configured to be displaced by a moving operation of an operating body provided integrally with the closing plate. An oscillating flow plate is provided on the lower side of the air leak path of the leaking body so that the gap between the leaking body and the sorting leaking body can be adjusted wide and narrow.
The oscillating flow plate separates the cam body, which is integrally provided on the support shaft of the oscillating flow plate so as to oscillate together with the oscillating flow plate, and which opposes the actuating body on the lower side of the air passage. In the state, it is inclined toward the lower side of the air passage lower side with respect to the moving direction of the operating body, and is configured to face the moving direction of the operating body in the state of being close to the sorting leak body, while the lower side of the air passage of the operating body is When the support shaft of the oscillating flow plate has a substantially U shape so that it can be fitted from the inside, and the closing plate is in the storage position, the cam body that inclines downward toward the lower side of the air passage contacts the lower side. , Actuating the cam body by moving the cam body with the displacement of the closing plate to the closing position side to swing the cam body and transform it into a posture that faces the moving direction of the actuating body, and accommodates the cam body in the upper and lower sides as it is. A sorting device in a thresher, which is characterized in that a portion is formed.