JP2010081812A - Thresher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thresher in which a member changing its posture in response to the change in the quantity of a treating material is found as a connection target of a separation air quantity-adjusting mechanism and which can connect the separation air quantity-adjusting mechanism to the target member to simplify an operation system. <P>SOLUTION: There is provided the thresher having a lid body 32B capable of changing and adjusting the quantity of the separation air of a winnower 32, a dust-discharging route for guiding the separation air to the dust-discharging port in the rear portion of the machine frame, and a dust-discharging controlling member 60 placed in front of the dust-discharging port opened outside the machine in the dust-discharging route and capable of being switched into an opened posture or into a closed posture, characterized by connecting the lid body 32B to the dust-discharging controlling member 60 through a connection means E, so that the lid body 32B is switched into a state reducing the quantity of the separation air, when the dust-discharging controlling member 60 is switched into the closed posture side, and the lid body 32B is switched into a state increasing the quantity of the separation air, when the dust-discharging controlling member 60 is switched into the opened posture side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a threshing apparatus equipped with a sorting air volume adjusting mechanism capable of changing and adjusting the air volume of the sorting air of Kara.

The amount of processed material sorted by the sorting unit of the threshing device varies depending on the amount of cutting. For this purpose, there is one equipped with a sorting air volume adjusting mechanism which is a mechanism for adjusting the sorting air volume. By itself, an opening is formed in a part of the tang case that houses the tang, and a part of the amount of wind generated by the tang is released through the opening. There was one configured to be guided to the sorting unit (Patent Document 1).
In the above-described conventional configuration, the lid body and the drive motor are linked to each other in order to configure the lid body for closing the opening so that the opening is closed, the opening is opened, and the degree of opening is freely changeable. Was linked through.
In addition, the sorting wind adjusting body as the sorting air volume adjusting mechanism and the operating lever are linked to the air passage from the tang to the sorting section with a linkage link to manually open and close the sorting wind adjusting body. There is also (patent document 2).

JP 2008-43277 A (see paragraph numbers [0023] [0025], FIGS. 2 to 4). JP 2002-262653 A (see paragraph number [0028], FIGS. 2 to 4).

The inventions described in any of the above-mentioned patent documents also have a configuration in which the lid and the drive motor (Patent Document 1), and the lid and the artificial operation lever (Patent Document 2) are linked through the linkage link mechanism. It is.
Therefore, the cover body and the mechanism for operating the cover body are only one-to-one correspondences, and the operation mechanism and the linkage link are required only for the opening / closing operation of the cover body. There was a need to simplify.

  The object of the present invention is to find an object to change the posture in response to a change in the amount of processed material as a target of linkage of the selection air volume adjustment mechanism, and to simplify the operation system by linking the selection air volume adjustment mechanism to the object. It is in providing a threshing device that can be realized.

〔Constitution〕
The characteristic configuration of the first aspect of the present invention is that a sorting air volume adjusting mechanism capable of changing and adjusting the air volume of the sorting air of a tang, a wind dust exhaust path for guiding the selected air to a dust outlet at the rear of the aircraft, and the wind dust exhaust path Dust that can be switched between an open position that opens the wind dust path and a closed position that closes the wind dust path and suppresses third loss is located in front of the dust outlet opening outside the machine A control body, and when the dust control body is closed and switched to the posture side, the sorting air volume adjustment mechanism is switched to a state where the sorting air volume is reduced, and when the dust control body is switched to the open position side, the sorting air volume adjustment is performed. In order to switch the mechanism to a state in which the selected air volume is increased, the selected air volume adjusting mechanism and the dust control body are interlocked by an interlocking means for selecting and discharging dust, and the effects thereof are as follows. .

[Action]
When there is a small amount of processed material that has been sorted by the sorting wind generated by Kara, there is a problem called so-called No. 3 loss, in which grains are mixed into waste straw and dust and discharged from the dust outlet. May happen. Therefore, a dust control body is provided in front of the dust outlet in the wind dust path.
By providing this dust exhaust control body, the dust exhaust control body is set to an open posture so that the wind dust exhaust path is opened when the amount of processed material increases, and the wind dust exhaust path is closed when the amount of processed material decreases. Close the dust control body and switch to the posture.
With such a configuration, when the amount of processed material is large, the dust control body is set to the open position to release a large amount of dust and waste, and when the amount of processed material is small, The dust control body was closed and set to the posture side, and the configuration for reducing the third loss was adopted.

  In view of the dust control body adopting the above control mode, it can be determined that the control tendency is the same as the selected air volume adjustment mechanism of the red pepper that changes the selected air volume in accordance with the amount of processed material.

  Therefore, as described above, the sorting air volume adjustment mechanism and the dust control body are interlocked by the sorting dust interlocking means. With this interlocking structure, in the situation where the amount of processed material is small and the third loss is likely to occur, the dust control body is switched to the closed posture side, and in conjunction with the switching to the closed posture side, the interlocking means for selective dust removal Thus, the sorting air volume adjusting mechanism is switched to a state where the sorting air volume is reduced. In a state where the amount of processed material increases, the dust control body is opened and switched to the posture side. Then, in conjunction with switching to the open posture side, the sorting air volume adjusting mechanism can be switched to a state in which the sorting air volume is increased by the interlocking means for sorting dust.

〔effect〕
Therefore, as described above, the sorting air volume adjusting mechanism and the dust control body are interlocked by the sorting dust interlocking means, so that the processing volume of the sorting air volume adjusting mechanism and the dust control body can be handled. Thus, it is possible to use a single drive device for controlling the posture, or an artificial operation tool, and the operation system can be simplified.

If the dust control body is switched to the open position with a large amount of processed material, the selected air volume will increase.Therefore, the synergistic effect of the open position dust control body and a large amount of the selected air volume will reduce the amount of dust and exhaust. Promotion of release can be expected.
If the dust control body is switched to the closed position with a small amount of processed material, the selected air volume will be reduced.Therefore, the third loss will occur due to the synergistic effect of both the dust control body in the closed position and the small air volume. It can be expected to be even less.

〔Constitution〕
The characteristic configuration of the second aspect of the present invention is the configuration of the first aspect of the present invention, further comprising: a drainer transporting device that sandwiches and transports the threshing drainer from the handling chamber toward the rear of the machine body by the endless rotating chain and the transport guide rod, Provided with interlocking means for a waste wall transporter device for transmitting a displacement in a direction of changing a holding interval of the transport guide rod with respect to the endless rotation chain as a displacement required for switching the opening / closing posture of the dust control body; When the relative distance from the endless rotating chain increases, the dust control body is switched to the open posture side, and when the relative distance between the transport guide rod and the endless rotating chain decreases, the dust control body The conveying guide rod and the dust control body are interlocked via the interlocking means for the waste wall conveying device so as to switch to the closed posture side. Street.

[Action]
In the waste straw conveying device, the threshing waste straw is sandwiched and conveyed by the endless rotating chain and the conveyance guide rod toward the rear of the machine body. Therefore, the larger the amount of processed material, the larger the transport amount in the waste straw transporter. As the transport amount increases, the interval at which the transport guide rod is separated from the endless rotating chain tends to increase.

  In the present invention, paying attention to this point, the dust discharge control body that changes the posture in accordance with the amount of the processing object and the waste discharger conveying device are linked. In other words, it is provided with interlocking means for the waste straw transporter device that transmits the displacement of the transport guide rod in the direction of changing the holding interval with respect to the endless rotation chain as the displacement required for switching the opening / closing posture of the dust control body. The guide rod and the dust removal control body are linked through the interlocking means for the waste wall conveying device.

  When the relative distance between the transport guide rod and the endless rotating chain increases due to the linkage via the interlocking means for the waste wall transport device, the dust discharge control body is switched to the open posture side to operate the transport guide. When the relative distance between the heel and the endless rotating chain is reduced, the dust control body can be automatically switched to the closed posture side.

〔effect〕
Therefore, the conveyance guide rod can be used as an operation system of the dust control body, and a dedicated operation tool for the dust control body is not required.
In addition, since the dust removal control body and the sorting air volume adjustment mechanism are linked, the sorting air volume adjustment mechanism is also linked to the transport guide rod, and a dedicated operation tool for the dust removal control body and the sorting air volume adjustment mechanism is also required. No longer.

〔Constitution〕
The characteristic configuration of the third invention is that in the configuration of the second invention, the discharge guide transporter interlocking means operates in conjunction with the change of the relative distance between the transport guide rod and the endless rotating chain. The urging means for urging the interlocking member in a direction in contact with the conveyance guide rod is provided, and the operation and effect thereof are as follows.

Predetermined state in which the interlocking member linked to the interlocking means for the waste straw transporter can be interlocked with the operation of the transport guide rod even when the amount of processed material decreases and the transport guide rod returns to the state close to the endless rotation chain You may not be able to return to
This is considered to be due to backlash based on a linked portion such as a link mechanism that constitutes the interlocking means for the waste straw conveying device.
Therefore, by applying this urging means to the interlocking member, the interlocking member can be returned to a predetermined posture.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal side view of a threshing apparatus according to an embodiment of the present invention. As shown in this figure, the threshing apparatus according to the present embodiment includes a threshing feed chain 11 provided outside the machine body 1 and a threshing unit 10 having a handling chamber 12 provided in the front part of the machine body, A waste blower transfer device 20 provided behind the chamber 12, a sorting unit 30 having a swing sorting device 31 provided below the handling chamber 12, and a dust exhaust fan provided below the waste blower transfer device 20. A dust discharge unit 40 having 41, a first screw conveyor 2 and a second screw conveyor 3 provided at the bottom of the sorting unit 30, and a waste straw treatment device 50 provided continuously at the rear of the machine body 1. ing.

  This threshing device is equipped with a combine, and performs a threshing process of a harvested cereal mash that has been cut by a combine harvester (not shown), a threshing grain sorting process, and a threshing drainer process.

  That is, the threshing unit 10 includes a threshing feed chain 11 and a handling chamber 12 and a receiving net 13 provided in the lower portion of the handling chamber 12, and performs a threshing process for the harvested cereal culm.

  That is, the threshing feed chain 11 supplies the tip side of the harvested grain culm to the handling chamber 12 while nipping and conveying the stock side of the harvested grain culm to the machine body rear side. The handling chamber 12 is provided with a handling cylinder 14 that is rotatably driven around an axis in the front-rear direction of the machine body in the handling chamber. The handling cylinder 14 handles the tip side of the supplied harvested cereal meal. The threshing feed chain 11 carries the threshing waste wall from the dust feed port 15 located at the rear end of the handling chamber 12 to the rear of the handling chamber 12.

  The waste straw conveying device 20 is arranged in such a manner that the conveyance start end side is located near the lateral side of the conveyance termination portion of the threshing feed chain 11 and the conveyance termination side is located above the waste straw inlet 51 of the waste straw treatment device 50. The endless rotating chain 21 provided at the rear part and a transport guide rod 22 provided along the endless rotating chain 21 below the transport side of the endless rotating chain 21 are configured.

  As shown in FIGS. 1 and 3, the conveyance start end side and the conveyance end side of the conveyance guide rod 22 are supported on the fuselage side via a vertical connection rod 23 whose upper end is coupled to the conveyance guide rod 22. 24. The support member 24 on the conveyance start end side is fixed to a chain guide that travels and guides the threshing feed chain 11. The support member 24 on the conveyance end side is fixed to the machine body 1. Support members 24 on the conveyance start end side and conveyance end side support the connecting rod 23 so as to be slidable up and down. Each connection rod 23 is arranged between the conveyance guide rod 22 and the support member 24 and is lifted and biased by a spring 25 attached to the connection rod 23 and covered with bellows. Thereby, the conveyance guide rod 22 is urged by the spring 25 so as to approach the endless rotation chain 21.

  The waste straw conveying device 20 inherits the stock source side of the threshing waste straw discharged from the handling chamber 12 from the threshing feed chain 11 between the endless rotating chain 21 and the conveyance guide rod 22, and the threshing waste thus inherited. The endless rotating chain 21 and the conveyance guide rod 22 are arranged in a horizontal posture in which the crown is placed on a support rail (not shown) whose tip side is located closer to the tip side than the waste straw conveying device 20. Thus, the paper is nipped and conveyed in the rearward direction of the machine body and dropped onto the waste straw inlet 51 of the waste straw treatment apparatus 50. The endless rotating chain 21 is arranged such that the distance from the threshing feed chain 11 becomes larger toward the conveyance end side, and the waste straw conveying device 20 is configured so that the threshing waste straw is placed on the threshing feed chain side with respect to the machine body 1. Transport while moving to the opposite side.

  When the amount of threshing waste straw conveyed by the waste straw conveying device 20 changes, the volume of the threshing waste straw changes, so that the conveyance guide rod 22 is endless by the operating force by the spring and the reaction force from the threshing waste straw. It moves so as to move away from or approach the rotating chain 21. As a result, the larger the amount of waste straw, the larger the distance between the conveyance guide rod 22 and the endless rotating chain 21, and the smaller the amount of waste wall, the smaller the distance between the conveyance guide rod 22 and the endless chain 21. become.

  The waste straw processing apparatus 50 includes a shredder case 52 having a waste straw inlet 51 and a long straw outlet 53 provided above the rear end side of the shredder case 52. The shredding case 52 includes a lid 54 that is swingably attached so as to open and close the drainer inlet 51, and a cutter shaft 55 that is provided inside the case so as to be able to be driven and rotated around an axis that faces the machine body. And a cutter shaft 55 and a shredder outlet 57 provided below the supply shaft 56.

  When the lid 54 is operated to close, the waste straw processing apparatus 50 enters a long straw discharge processing state. Then, the waste straw processing device 50 guides the long straw from the waste straw transporting device 20 down to the long straw discharge port 53 on the outer surface side of the lid 54, and the long straw discharge device 53 extends to the ground behind the fuselage. Drop in a straw state.

  When the lid 54 is operated to open, the waste straw processing apparatus 50 enters a shredder release processing state. Then, the waste straw processing device 50 drops the threshing waste straw from the waste straw conveying device 20 from the waste straw inlet 51 into the shredded case 52, and the cutter shaft 55 is arranged in the axial direction of the cutter shaft 55. It is shredded in a slimming direction by a disc-shaped cutting blade provided so as to be integrally rotatable, and a disc-type feeding blade provided so that the supply shaft 56 is arranged in the axial direction of the shaft so as to be integrally rotatable. The waste straw in the state is dropped from the shredded straw discharge port 57 to the ground.

  The sorting unit 30 includes the swing sorting device 31, and further includes a red pepper 32 provided below the front end side of the swing sorting device 31 and a processing rotator 33 provided behind the dust feeding port 15. It is prepared.

  The processing rotator 33 is driven to rotate around the horizontal axis of the machine body and receives and supports the straw scraps discharged from the dust feed port 15 of the handling chamber 12 on the upper Strollac 34 provided in the swing sorting device 31. Dissolve and remove grain from straw.

  The swing sorter 31 includes the upper stroller 34, the glen pan 35 positioned below the receiving net 13, and the chaff sheave 36, and the strobac 37 provided behind the chaff sheave 36. A grain sieve 38 is provided below 36.

  The sorting unit 30 swings and sorts the processed product from the processing rotator 33 and the processed product dropped and supplied from the handling chamber 12 through the receiving net 13 by the swing sorting device 31 and the dust 32 by the Kara 32. Sorting into the first processed product, the second processed product, and the processed product for discharging straw scraps, etc. by the wind sorting by the sorting wind supplied toward 40, the first processed product and the second processed product Is dropped from the rocking sorter 31 and the processed material for discharging is sent to the dust discharging unit 40.

  The first screw conveyor 2 carries out the first processed material dropped from the swing sorting device 31 to the lateral outer side of the machine body 1 and supplies it to the cerealing device 4. The cerealing device 4 feeds threshed grains into a combine grain tank (not shown). The second screw conveyor 3 carries out the second processed material dropped from the swing sorting device 31 to the lateral outer side of the machine body 1 and supplies it to the reduction device 5. The reduction device 5 conveys the second processed material to the reduction port provided on the lateral side wall of the machine body 1, and sends the second processed material into the machine body from the reduction port and returns it to the starting end side of the swing sorting device 31.

  The dust exhaust unit 40 includes a fan dust exhaust path A having a dust exhaust fan 41 and a wind dust exhaust path B provided below the fan exhaust dust path A.

  The dust exhaust path A with a fan is formed by a fan case 42 that houses a dust exhaust fan 41 so as to be freely driven. The dust exhaust path A with a fan is provided with the dust exhaust fan 41 and is a suction port of the fan case 42. A dust suction port 43 and a dust discharge port 44 which is a discharge port of the fan case 42 are provided.

  The dust suction port 43 is located above the rear end portion of the swing sorting device 31 so as to open toward the swing sorting device 31. The dust discharge port 44 is located in the shredded case 52 so as to open toward the shredder discharge port 57.

  As a result, the dust discharge path A with the fan sucks the processed material for discharge sent out from the rear part of the sorting unit 30 from the dust suction port 43 by the feed force of the dust discharge fan 41 and shreds from the dust discharge port 44. It is discharged out of the machine body through the case 52. The dust exhaust path A with a fan sucks and discharges a part of the sorting air from the tang 32 together with the processed material.

  The wind dust exhaust path B is formed by a portion 42 a of the fan case 42 located below the dust exhaust fan 41 and the rear end portion of the swing sorting device 31. Communicate. The wind dust discharge path B includes a dust discharge port 45 provided at the rear end of the machine body 1 so as to be disposed below the dust discharge port 44 of the dust discharge path A with a fan. The dust discharge port 45 is opened toward the long straw discharge port 57 of the shredded case 52.

  In the wind dust discharge path B, the discharge processed material sent out from the sorting unit 30 is introduced by the transfer force of the sorting wind from the tang 32, and discharged from the dust outlet 45 to the outside of the machine body through the shredded case 52. .

  The wind dust removal path B includes a plate-shaped dust removal control body 60 provided at a portion slightly inside the machine body from the dust discharge port 45. As shown in FIG. 2, the dust removal control body 60 swings to a portion 42 a located below the dust removal fan 41 of the threshing portion 10 via a rotation support shaft 61 provided so as to be integrally rotatable at the upper end portion thereof. It is supported freely.

  FIG. 3A is a side view of the dust control body 60 in the closed posture. As shown in this figure, when the dust removal control body 60 is swung to the lower side around the machine body lateral axis of the rotation support shaft 61 by the rotation operation of the rotation support shaft 61, the dust removal control body 60 assumes a closed posture. Then, the dust control body 60 assumes a posture that intersects the processing flow direction of the wind dust path B so as to suppress the passage of the processing object of the wind dust path B.

  FIG. 3B is a side view of the dust control body 60 in the open posture. As shown in this figure, the dust control body 60 is in an open position when the rotary support shaft 61 is swung upwardly about the machine body lateral axis of the rotary support shaft 61 by the rotation operation of the rotary support shaft 61. . Then, the dust removal control body 60 assumes a posture along the processing object moving direction of the wind dust exhaust path B so as to facilitate the passage of the process object in the wind dust exhaust path B.

As shown in FIG. 7, the mounting boss 60 </ b> A of the dust removal control body 60 is externally fitted to the rotation support shaft 61, and the dust removal control body 60 is rotatably attached around the rotation support shaft 61. A set screw 67 is attached to the mounting boss portion 60A, and flat surfaces 61A and 61B formed by grinding a part of an arc-shaped cross section along the chord direction on the outer peripheral surface of the rotation support shaft 61. The screw tip portion of the set screw 67 is formed so as to abut on two circumferential directions.
As shown in FIG. 7 (a), the dust control body 60 can be set in a closed position by applying the screw tip of the set screw 67 to one flat surface 61A. As shown in FIG. When the screw 67 is loosened and the dust control body 60 is rotated around the rotation support shaft 61, the set screw 67 is tightened and the tip of the screw is applied to the other flat surface 61B, the dust control body 60 is opened. Can switch to posture.

  As shown in FIG. 2, the dust discharge control body 60 is configured so that the transport guide rod is connected by the interlocking means D for the waste straw transporting device provided on the lateral wall 10 a of the threshing portion 10 on the side opposite to the side where the threshing feed chain 11 is present. 22 is linked to a portion to which a connecting rod 23 on the conveyance end side is connected.

The interlocking means D for the waste straw conveying device will be described. As shown in FIGS. 3 and 5, a swing arm 71 is attached to a protruding end protruding from the left and right lateral side walls 10 a of the threshing portion 10 in the rotation support shaft 61. On the other hand, a support member 24 that supports the conveyance guide rod 22 and a support bracket 62 that is positioned below the support member 24 are attached to the body frame 76 above the swing arm 71, and the interlocking arm as an interlocking member is attached to the support bracket 62. 73 is supported so as to be swingable up and down, and a receiving pin 73 a is attached and fixed to the tip of the interlocking arm 73. A rotatable collar 73b is loosely fitted on the receiving pin 73a, and the collar 73b is in contact with the lower end of the connecting rod 23 that moves up and down together with the transport guide rod 22.
Therefore, the interlocking arm 73 swings up and down in conjunction with the state in which the transport guide 22 is moved toward and away from the endless rotating chain 21.

As shown in FIGS. 2 to 5, the linkage arm 74 is attached and fixed at the same axial center position as the linkage arm 73, and the linkage arm 74 is integrated with the vertical swing operation of the linkage arm 73. Swings up and down. A linkage arm 74 linked to the conveyance guide rod 22 and a swing arm 71 linked to the dust control body 60 are linked by a linkage link member 75.
The linkage link member 75 is formed by integrally forming a linear link portion 75A and an arm portion 75B that is bent in an L shape at the lower end portion of the linear link portion 75A, and links the upper end portion of the link portion 75A. The arm 74 is linked with a swingable relative movement, and the tip of the arm portion 75B is linked with the swinging arm 71 in a relatively swingable manner.

As shown in FIGS. 3 and 5, the interlocking arm 73 is urged to the installation site of the support bracket 62 and the support member 24 that support the interlocking arm 73, and the receiving pin 73 a of the interlocking arm 73 is attached to the lower end of the connecting rod 23. A plate-like spring 70 that is biased in the abutting direction is mounted. The plate-like spring 70 is in contact with the lower end surface of the support member 24 and the collar 73b of the interlocking arm 73 from below, and pulls up and biases the interlocking arm 73.
As shown in FIG. 3A, even if the amount of processed material decreases and the conveyance guide rod 22 returns to the state where the conveyance guide rod 22 is close to the endless rotation chain 21, the linkage arm 74 linked to the interlocking means D for the waste wall conveying device is connected. The plate-like spring 70 is used to pull up and bias the interlocking arm 73 so that the interlocking arm 73 does not return due to looseness of the interlocking part such as the interlocking link member 75, so that the receiving pin 73a of the interlocking arm 73 is received. Is configured to maintain a state of contacting the lower end of the connecting rod 23.

As shown in FIGS. 2 and 3, the linear link portion 75 </ b> A of the linkage link member 75 that constitutes the interlocking means D for the waste wall conveying device is constituted by two members, and a long hole is formed in the connection part of the two members. An adjustment mechanism 75a is provided. By using the long hole adjusting mechanism 75a, the initial opening degree of the lid 32B of the tang 32 can be adjusted.
It is possible to adjust the difference in the initial opening based on the production error for each production lot.

  As described above, the interlocking arm 73 linked to the conveyance guide rod 22, the linkage arm 74 that can swing integrally with the linkage arm 73, the linkage link member 75 linked to the linkage arm 74, and the swing linked to the linkage link member 75. The arm 71 constitutes the interlocking means D for the waste straw conveying device.

The sorting air volume adjusting mechanism C will be described. As shown in FIGS. 3 and 4, a portion of the red pepper case 32A that accommodates the red pepper 32 is cut out to form an opening 32a that faces the outside, and a lid 32B that opens and closes the opening 32a is supported in a swingable manner. It is.
When the lid 32B is opened, a part of the air volume generated by the tang 32 can be discharged to the outside of the tang case 32A through the opening 32a. With such a configuration, the selection air volume can be reduced.
When the lid 32B is closed, all of the air volume generated by the tang 32 can be sent from the tang case 32A to the sorting unit 30. With this configuration, the number can be increased as compared with the case where the lid 32B is opened.

  As shown in FIG. 4, the lid 32 </ b> B is supported by a bracket 63 disposed near the upper end, and a passive arm 64 is rotatably supported by the bracket 63. The upper end curved portion 32b of the lid 32B is attached and fixed to the proximal pin portion 64A supported by the bracket 63 of the passive arm 64, and the lid 32B is rotated together with the passive arm 64 around the proximal pin portion 64A. It is configured to be possible.

  A plate-like connection link 65 is connected to the upper end of the passive arm 64 via a pin 64 a, and the end of the connection link 65 opposite to the pin connection portion extends to the pivot support portion of the dust control body 60. It is. As shown in FIG. 6, at the pivotal support portion of the dust control body 60, the swing arm 71 is pivotally supported by a portion 42 a located below the dust exhaust fan 41 via a rotation support shaft 61. A driven arm 68 is attached to the moving support shaft 61 so that the driven arm 68 can swing integrally with the swing arm 71.

The connecting link 65 constituting the sorting and dusting interlocking means E is composed of two members, and a long hole adjusting mechanism 65A is provided at the connecting portion. By using the long hole adjusting mechanism 65A, the initial opening degree of the lid 32B of the tang 32 can be adjusted.
It is possible to adjust the difference in the initial opening based on the production error for each production lot.
As described above, the driven dust 68, the connecting link 65, and the passive arm 64 constitute the selective dusting interlocking means E.

As described above, since the interlocking means D for the exhaust waste transporting device and the interlocking means E for sorting dust are interlocked, the following control mode is adopted.
(1) As shown in FIG. 3 (a), when the amount of the processed material close to the endless rotating chain 21 is small, the dust control body 60 is closed by the interlocking means D for the waste wall conveying device. It is possible to prevent the third loss in which the grains and the like are discharged from the dust outlet 45 by being mixed with the waste straw and the like.
In this case, the lid 32A of the tang 32 is switched to the open posture by the selective dusting interlocking means E. Then, a part of the air volume of the red pepper 32 is released from the opening 32a, and the air volume sent to the sorting unit 30 decreases according to the processing amount.

(2) As shown in FIG. 3B, when there is a large amount of processed material that is separated from the endless rotating chain 21, the dust discharge control body 60 is opened by the interlocking means D for the waste wall conveying device. The state is set so that a large amount of exhausted gin or the like is discharged from the dust outlet 45.
In this case, the lid 32A of the tang 32 is switched to the closed posture by the selective dusting interlocking means E. Then, the total air volume of the tang 32 is not released, and the air volume sent to the sorting unit 30 increases according to the processing amount.

(3) Although not shown, when the position of the conveyance guide rod 22 indicates an intermediate state of the state shown in FIGS. And the open state of the lid 32 </ b> A of the Kara 32 show an intermediate state between the states shown in FIGS. 3 (a) and 3 (b).

[Another embodiment]
(1) As the sorting air volume adjusting mechanism C, a mechanism for opening and closing the passage between the tang 32 and the first screw conveyor 2 may be provided. As a mechanism for opening and closing, a mechanism that swings in a door manner is typified. A control mechanism for controlling the rotation speed of the carp 32 may be used by appropriately combining a belt continuously variable transmission, various motors, a control device, and the like.
(2) The dust removal control body 60 is not only a plate-like member, but also a rake-like member in which a plurality of notches are formed at the lower end portion of the plate-like member, and unevenness on the surface of the plate-like member. It may be formed, or a coating agent such as Teflon (registered trademark) may be applied to prevent the dust or the waste from adhering.
(3) Although the interlocking means E for sorting dust is composed of mechanical linkage means using a link mechanism, different mechanical means such as linkage rods and linkage wires may be used, and the dust control body 60 and the selected air volume adjusting mechanism C may be driven using an actuator, and both may be controlled based on a command from the control means. Also, only one of the dust control body 60 and the sorting air volume adjustment mechanism C is driven and controlled using an actuator, and the linkage between the dust control body 60 and the sorting air volume regulation mechanism C is mechanically linked. A mechanism may be used.
(4) As the interlocking means D for the waste straw transporting device, different mechanical means such as a connecting rod and a connecting wire may be used, and the dust control body 60 is configured to be controlled by using an actuator, and transported. The actuator of the dust control body 60 may be driven and controlled by sensing the operation of the guide rod 22 with a sensor.
(5) Although the plate-like spring 70 is provided as an urging means in the interlocking means D for the waste straw transporting device for the purpose of suppressing a return delay caused by looseness of the link mechanism or the like, Good.

Longitudinal side view of threshing device Side view of a threshing apparatus provided with an interlocking device for a waste straw conveying device that links the transport guide rod and the dust control body, and a selective dusting interlocking device that links the dust control body and the lid of the red pepper case. (A) A side view showing a conveyance guide rod in a state close to an endless rotating chain when there are few processed objects, a dust removal control body in a closed posture, and a lid of a Kara case in an open posture, (B) Side view showing the transport guide rod in a state of being separated from the endless rotating chain when there are many processed objects, the dust control body in the open posture, and the lid of the Kara case in the closed posture Side view showing the linkage state of the lid of the Kara case and the interlocking means for selective dust removal Side view showing a contact state between the connecting rod supporting the conveyance guide rod and the interlocking member Side view showing the linkage between the dust control body and the linkage link member of the linkage means for transporting the waste duster, and the linkage state between the dust control body and the linkage link of the sorting means for sorting dust removal (A) Side view showing the state where the dust control body is set to the closed position, (b) Side view showing the state where the dust control body is set to the open position

Explanation of symbols

12 Handling chamber 15 Dust feed port 20 Drainer conveying device 21 Endless rotating chain 22 Conveying guide rod 32 Dangling 45 Dust outlet 50 Drainer processing device 60 Dust control body 70 Plate-like spring (biasing means)
73 Interlocking arm (interlocking member)
A Dust exhaust path with fan B Wind exhaust path C Sorting air volume adjustment mechanism D Interlocking means for waste wall transporter E Interlocking means for sorting dust

Claims (3)

  A sorting air volume adjusting mechanism capable of changing and adjusting the air volume of the sorting air of the Chinese style, a wind dust exhaust path for guiding the selected wind to the dust exhaust port at the rear of the fuselage, and a dust exhaust opening opening to the outside of the wind dust exhaust path A dust removal control body that can be switched between an open posture that opens before the wind dust path and a closed posture that closes the wind dust path and suppresses third loss. When the control body is closed and switched to the posture side, the selection air volume adjustment mechanism is switched to a state where the selection air volume is reduced, and when the dust control body is opened and switched to the posture side, the selection air volume adjustment mechanism is switched to a state where the selection air volume increases. A threshing device in which the sorting air volume adjusting mechanism and the dust control body are linked by a sorting and dusting interlocking means.   A waste wall conveying device is provided that sandwiches and conveys the threshing waste wall from the handling chamber in the rearward direction of the machine body by the endless rotation chain and the conveyance guide rod, and in the direction of changing the holding interval of the conveyance guide rod with respect to the endless rotation chain Is connected to the dust discharge control body as a displacement required for switching the opening / closing posture of the dust control body, and the dust discharge control is performed when the relative distance between the transport guide rod and the endless rotation chain increases. When the body is opened and switched to the posture side, and the relative distance between the conveyance guide rod and the endless rotation chain is small, the conveyance guide rod and the The threshing apparatus according to claim 1, wherein the dust removal control body is interlocked with the interlocking means for the waste straw conveying device.   The waste wall transporting device interlocking means is provided with an interlocking member that operates in conjunction with a change in the relative distance between the transporting guide rod and the endless rotating chain, and the interlocking device is in contact with the transporting guide rod. The threshing apparatus according to claim 2, further comprising an urging means for urging the member.

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