JP2014217296A - Thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote the transfer of processed products in a threshing chamber when they are input in one shot into the threshing chamber, in the case the processed products are fallen materials, wet materials, or the like that are troublesome to treat.SOLUTION: If a front side dust-sending guide 21located in the very front side, functions with a load sensor and the front side dust-sending guide 21makes a turning for prescribed opening by the load from the processed product, an electric motor 47 drives rear side dust-sending guides 21, 21, 21to turn in its opening direction all together through a link plate 37.

Description

  The present invention relates to a threshing apparatus used for a combiner, a harvester, or the like, and more particularly, to a dust feeding guide apparatus that is provided on the inner surface side of a handling chamber and adjusts the feed of the treated product by guiding the treated product flowing in the handling chamber. .

  2. Description of the Related Art Conventionally, there is known a threshing device provided with a dust feeding guide device that adjusts the feed of a processed product by contacting the processed product flowing in the treated chamber on the inner surface side of the handling chamber. The dust feed guide device has a plurality of dust feed guides arranged side by side in the axial direction of the handling cylinder, an arm plate that rotates integrally with each dust feed guide, and a relatively rotatable regulation plate, The coil spring is shrunk between the two, and the lower limit stopper provided on each regulating plate is connected with a connecting plate, and the connecting plate is moved forward and backward to move each lower limit stopper, thereby initializing a plurality of dust feed guides. The opening position is set (patent document 1).

  The plurality of dust feed guides can change the initial opening positions of all the dust feed guides by the connecting plate, but each dust feed guide is against the coil spring or in order according to the load with which the workpiece is in contact. Each turn.

JP 2012-161284 A

  Each of the plurality of dust feeding guides is rotated according to a load from the processing object, and the feeding of the processing object is adjusted. For example, when lodging or wetting material is threshed, the treatment room is filled with processing material that is cumbersome from its supply (front) side, and the dust supply on the supply side (front side) of the treatment room is performed. The guide is adjusted so that it is opened and adjusted so that the processed material is sent quickly, and then the load of the processed material acts on the second dust supply guide, and is adjusted in this way. The dust feed guides are adjusted to open sequentially. Therefore, the opening adjustment of the plurality of dust feeding guides may be delayed, and a partial overload may occur in the handling cylinder, resulting in problems such as damage to the culm and clogging.

  Therefore, the present invention functions so that the front dust feed guide functions as a load sensor, and when the front dust feed guide is opened by a predetermined amount, the dust feed guides arranged on the rear side are simultaneously opened. An object of the present invention is to provide a threshing apparatus that solves the above-mentioned problems.

In the present invention, a plurality of dust feeding guides (21) are arranged in parallel in the axial direction of the handling cylinder (11) in the handling chamber (12), and the processed material in the handling chamber is guided by the dust feeding guides on the front side. In the threshing device (10) transferred from the rear to the rear,
The front dust feed guide (21 ₁ ) disposed at the foremost side among the plurality of dust feed guides (21) is urged in one direction by a spring (32), and the spring receives a load received from the processed material. Rotate against the urging force to configure the load sensor,
Said front Okuchiri guide (21 ₁₎ other than the rear side in parallel to the rear Okuchiri guide _{(21 2,} 21 3, 21 _4), so as to follow the rotation of the front Okuchiri guide (21 ₁₎ It is characterized by being rotated.

For example, referring to FIGS. 4 and 6, the plurality of dust feeding guides (21) are armed so as not to rotate relative to the pivot fulcrum shaft (25) that rotates together with each dust feeding guide. A plate (29, 30) is provided and the restriction plate (31) is supported so as to be relatively rotatable. One end (32b) of the spring (32) is locked to the arm plate (30, 33) and the other end (32c). And the opening degree of each dust feeding guide (21) is adjusted so that the load received from the workpiece and the biasing force of the spring (32) are balanced. And
The restricting plates (31) of the rear dust feed guides (21 ₂ , 21 ₃ , 21 ₄ ) are connected to each other by a connecting plate (37), and the connecting plate is moved by an electric motor (47). In conjunction with this, the electric motor (47) is driven in the opening direction based on the predetermined opening degree rotation of the front dust feed guide (21 ₁ ) that also serves as the load sensor (S3).

For example, referring to FIG. 8, an electric motor (47) for opening and closing the rear dust feed guide (21 ₂ , 21 ₃ , 21 ₄ ) is provided,
The electric motor (47) is driven in a direction to open the rear dust feed guide (S3; ON) based on a predetermined opening degree rotation of the front dust feed guide (21 ₁ ) that also serves as the load sensor (S3). After the predetermined time (S9) from the state where the front dust feed guide returns to the predetermined opening or less (S1; OFF), the rear dust feed guide is driven in the closing direction (S10).

For example, referring to FIG. 4, the processing chamber (12) includes a processing chamber (20) communicating with the rear side through a communication port (60).
With the dust feed guide (21 ₄ ) arranged at the rearmost side among the plurality of dust feed guides (21) opened at a predetermined opening or more, the processed material in the handling chamber (12) is passed through the communication port. (60).

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not have any influence on description of a claim by this.

  According to the first aspect of the present invention, the front dust feed guide functions as a load sensor. For example, when a lodging material or a wetting material is put into the handling chamber all at once, the front dust feed guide receives a load from the processing object. , The rear dust feed guides arranged on the rear side rotate in the opening direction at the same time to facilitate the transfer of the processed material. It is possible to reduce the occurrence of problems such as partial overloading of the trunk, clogging of processed products, and damage of cereals.

  In addition, since the front dust feed guide also functions as a load sensor, the workpieces can be transferred appropriately by using multiple dust feed guides, a dedicated load sensor is not required, the number of parts can be reduced, and processing using a dedicated load sensor is possible. It is possible to prevent obstruction of the flow of the product and to eliminate malfunction due to clogging of the processed product in the dedicated load sensor.

  According to the second aspect of the present invention, since the opening degree of each of the plurality of dust feeding guides is adjusted so that the load received from the workpiece and the biasing force of the spring are balanced, after following the front dust feeding guide, In addition to adjusting the opening of the side dust feed guide, the opening of each dust feed guide is autonomously adjusted by the load of the workpiece, and can be appropriately transferred to any workpiece.

  According to the third aspect of the present invention, when the rear dust feed guide rotated in accordance with the opening direction of the front dust feed guide becomes less than a predetermined opening when the load on the front dust feed guide is reduced, Since it is operated in the closing direction with a delay of a predetermined time, the rear dust feed guide is held at the opening position for a predetermined time even if it is a troublesome treatment such as lodging materials and wetting materials. , Can be discharged from the handling room.

  According to the fourth aspect of the present invention, the rearmost dust-feeding guide guides the processed material to the communication port in a state of being opened by a predetermined opening or more, and efficiently discharges the processed material in the handling chamber to the processing chamber. Can do.

The top view which shows the combine to which this invention is applied. The schematic side view which shows the threshing apparatus. The front view. The top view which shows the dust feeding guide apparatus which concerns on this invention. The front view. Sectional drawing of the rotation fulcrum shaft part of the dust feeding guide. The control block diagram. The flowchart.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the combine 1 includes a traveling machine body 3 supported by a crawler, and a pre-processing unit 5 is disposed in front of the traveling machine body 3 so as to be movable up and down. In the traveling machine body 3, a driving operation unit 6 and an engine are arranged on one side, a grain tank 7 and a discharge auger 9 for discharging the grains in the grain tank are arranged behind the traveling machine body 3, and a threshing device 10 is arranged on the other side. Is arranged.

  As shown in FIGS. 2 and 3, the threshing device 10 includes a threshing unit 10 a and a sorting unit 10 b. The threshing unit 10 a includes a handling chamber 12 having a handling cylinder 11 and is sandwiched between feed chains 13. The grain is threshed from the cereals conveyed. The sorting unit 10b separates the grains and impurities that have fallen from the threshing unit 10a through the receiving net 15 into the first port 16, the second port 17, and the dust outlet 19 by swinging sorting and wind sorting. The grain of the port 16 is transferred to the Glen tank 7, and the one of the port 17 is conveyed to the processing chamber 20 of the threshing unit 10a and re-selected after reprocessing. Contaminants such as spikes are discharged out of the machine.

  A dust feeding guide device 14 is disposed above the handling cylinder 11 in the handling chamber 12. The dust feed guide device 14 includes a plurality of (for example, four) dust feed guides 21 arranged in the axial direction of the handling cylinder 11. The handling cylinder 11 has a large number of teeth 18 planted around the drum shape, and the rotation of the handling cylinder 11 in the direction of the arrow B causes grains and straw scraps etc. threshed by the handling teeth 18. As shown in the direction of arrow C, the processed material made of foreign substances is transferred in a spiral shape from the front to the rear while being rotated along with the rotation of the handling cylinder 11. The flow of the processed material in the handling chamber 12 is controlled by the direction of the dust feeding guide 21 attached to the upper wall (threshing cover) 22 of the handling chamber 12, and the dust feeding guide 21 itself is The direction is automatically adjusted according to the load received from the workpiece.

  Next, the dust feed guide device 14, which is a main part of the present invention, will be described in detail with reference to FIGS. Each of the (four) dust feed guides 21 constituting the dust feed guide device 14 is integrally provided with a rotation fulcrum shaft 25 at an intermediate portion thereof, as shown in FIG. Further, the bearing 26 is rotatably supported by a bearing 26 attached to the threshing cover 22, and extends upward outside the handling chamber 12 through the cover 22. The fulcrum shaft 25 has a two-chamfered portion at the upper projecting portion, and a boss portion 27 is non-rotatably fitted to the two-chamfered portion. A first arm plate 29 and a second arm plate 30 are non-rotatably fitted to the boss portion 27, and a regulation plate 31 is rotatable on the bulging cylindrical portion 27 a at the lower end of the boss portion 27. It is mated. Therefore, as shown in FIG. 4, the first and second arm plates 29 and 30 are connected to the dust feed guide 21 via the fulcrum shaft 25 so as to rotate integrally therewith, and the first arm. The plate 29 is a relatively long triangular plate that extends in the same direction as the dust feed guide 21, and the second arm plate 30 is a relatively short length that extends in a direction orthogonal to the first arm plate 29. It consists of a plate. The restricting plate 31 is supported by the fulcrum shaft 25 so as to be rotatable, and the base end on the fulcrum shaft 25 side is wide with the first arm plate 29 wide in the opposite direction to the second arm plate 30. Consists of a triangular plate upside down, and extends in the same direction below the first arm plate 29.

  A coil portion 32 a of a torsion coil spring 32 is fitted into the fulcrum shaft 25, and one end arm portion 32 b of the coil spring 32 is hooked on a pin 33 implanted at the tip of the second arm plate 30, The other end arm portion 32 c is hooked on a pin 35 fixed to the triangular wide side of the restriction plate 31. In the torsion coil spring 32, both end arm portions 32b and 32c are respectively hooked on pins 33 and 35 in a state where the coil portion 32a is wound by a predetermined amount, and in FIG. The first and second arm plates 29 and 30 are biased so as to rotate in the clockwise direction and the regulating plate 31 in the counterclockwise direction.

Over the parallel arranged four Okuchiri guide _{21 1,} 21 _2, 21 3, 21 the tip portion of the first arm plate 29 and the regulation plate 31 in _4, the connection plate 37 is disposed. As shown in FIG. 5, back stopper shafts (lower limit stoppers) 39 are respectively planted at the portions of the connecting plate 37 where the first arm plates 29 and the regulation plates 31 are located. . Each of the back stopper shafts 39 is rotatably fitted to the tip of each regulation plate 31. Accordingly, the four regulation plates 31 are coupled to the coupling plate 37 at the tips, and are connected to the parallel links. Is configured. Arc-shaped long holes 40 around the fulcrum shaft 25 are formed in the wide end portions of the first arm plates 29, and the back stopper shaft 39 is fitted into the long holes 40. . Therefore, the back stopper shaft 39 is urged by the torsion coil spring 32 so as to abut the left (front) side end of the long hole 40 of the first arm plate 29 as shown in FIG.

  As shown in FIG. 5, the back stopper shaft 39 is secured to the upper side of the first arm plate 29 by a nut 42 via a plate 41 having an L-shaped cross section. Is normally mounted so that its rising surface faces upward, so that the free movement of the first arm plate 29 and the regulating plate 31 is not hindered. As shown in FIGS. 4 and 5, a sector gear 46 is rotatably disposed on the threshing cover 22 by a shaft 49, and an electric motor 47 is disposed on the threshing cover 22. It is fixed. The sector gear 46 and the front end of the connecting plate 37 are connected to each other through a short long hole and a pin 50 fitted therein, and the gear portion of the sector gear 46 meshes with the output gear 51 of the electric motor 47. ing. Accordingly, the connection plate 37 moves forward and backward through the sector gear 46 by the rotation of the electric motor 47.

The front end front near (upstream side end of the threshing) (first) Okuchiri guide 21 of _the most threshing drum 11 of the respective Okuchiri guide the load of the treated product is put into threshing chamber 12 It also serves as a load sensor to detect. On the outside of the threshing cover 22 in the front Okuchiri guide 21 _1, load detection (sensor) switch 53 is installed, the load detection switch 53, the load from the first Okuchiri guide 21 ₁ is treated With this, the front end face of the first arm plate 29 is brought into contact with the first arm plate 29 in a state where the opening is opened by a predetermined opening, and is switched to ON. As shown in FIG. 4, the front (first) used also to load sensor Okuchiri guide 21 _1, the first arm plate 29 are formed elongated holes 40 ₁ rear Okuchiri guide ₂₁ 2, 21 _3, is formed longer than the elongated hole 40 in 21 _4.

The front Okuchiri guide 21 ₁ except rear Okuchiri guide, on the outside of threshing cover 22 for example, corresponding from the front to the second second Okuchiri guide 21 _2, opening detection (sensor) switch 55 is installed and, the open degree detection switch 55, the rear (second) Okuchiri guide 21 ₂ is switched to the contact oN the front end face of the first arm plate 29 in a state of open predetermined opening. A delay timer (opening detection) switch 56 is installed outside the threshing cover 22 corresponding to the sector gear 46, and the switch 56 is switched by the rear side of the sector gear 46.

  The load detection switch 53, the opening detection switch 55, and the delay timer opening detection switch 56 are output to the control unit 59 as shown in FIG. 7, and the control unit 59 shows the flow chart in FIG. Then, a predetermined signal is output to the electric motor 47.

As shown in FIG. 4, the handling cylinder 11 is divided into a front side and a rear side, and the front side handling cylinder 11a and the rear side handling cylinder 11b can rotate at different rotational speeds. The front from the second second Okuchiri guide 21 2 ₍₃ may be Okuchiri guide 21 ₃₎ is disposed in the divided portion of the front threshing drum 11a and the rear threshing drum 11b, the processing of the divided portions You can send things quickly and smoothly. Further, the fourth Okuchiri guide 21 ₄ rearmost, are arranged so as to face the communication port 60 of the processing chamber from the threshing chamber 12 to the (second threshing chamber) 20. In a state where the fourth Okuchiri guide 21 ₄ is opened more than a predetermined opening degree, transfer from threshing chamber 12 of the workpiece into the processing chamber 20 is accelerated.

Since this Embodiment consists of the above structures, in the state where the handling cylinder 11 of the threshing apparatus 10 is rotating in the direction of arrow B based on the operation of the combine 1, the processed material in the handling chamber 12 is While being rotated by the handling cylinder 11, it is transferred from the front to the rear in a spiral shape while rotating. At this time, it is set at a position connecting plate 37 is slightly advanced by the electric motor 47, the long hole (40 ₁₎ long front (first) Okuchiri guide 21 _1, except for the back stopper shaft 39 of the holes 40 in the front end in contact with positions, each Okuchiri guides _{21 1,} 21 _2, 21 3, 21 ₄ is set to the initial opening position slightly opened. In the initial state, the sector gear 46 is in contact with the switch 56 and the switch is in the ON state. As shown in FIG. 8, the electric motor 47 is held at the stop position by step S11 through the ON of step S8. The close flag is set to 0 (S12).

  In the initial state and the normal state in which the normal processed material is supplied, the processed material feed (speed) is adjusted by the inclination of each of the four dust feed guides 21. The rotational position of the first arm plate 29 is set based on the position of the front end (lower limit side, closing side) of the long hole 40 that is in contact with the back stopper shaft 39 by the biasing force of the torsion coil spring 32. An initial opening position that is an inclination angle of the dust feed guide 21 integrated with the arm plate is set. At this time, the regulation plate 31 connected to the back stopper shaft 39 is also rotated by the same amount as the first arm plate 29, and accordingly, the pin 33 implanted in the arm plate 30 and the pin implanted in the regulation plate 31. The urging force of the torsion coil spring 32 that is hooked between and the same rotation fulcrum shaft 25 is always kept constant. Due to the spiral movement (arrow C in FIG. 2) of the processed material accompanying the rotation of the handling cylinder 11, a pressing force (load) in the direction of arrow D (see FIG. 4) acts on the dust feed guide 21 from the processed material. When the amount of processed material in the handling chamber 12 is large, the load increases.

  The dust feed guide 21 has a biasing force of a torsion coil spring 32 between a pin 35 whose rotational position is fixed by a back stopper shaft 39 and a pin 33 provided on the arm plate 30 integral with the dust feed guide 21. Is acting, and the biasing force and the load D are kept in balance. When the load (pressing force) from the processed material acting on the dust feed guide 21 is larger than the urging force of the coil spring 32, the dust feed guide 21 and the arm plates 29, 30 integrated therewith are centered on the rotation fulcrum shaft 25. Rotate. The retraction rotation of the dust feeding guide 21 is such that the second arm plate 30 rotates against the coil spring 32 and the first arm plate 29 moves relative to the back stopper shaft 39 in the long hole 40. Rotate while.

  As a result, when a large amount of processed material accumulates in the handling chamber 12 and the load from the processed material acting on the dust feed guide 21 is large, the dust feed guide 21 automatically retreats and rotates, thereby increasing the feed speed of the processed material. By increasing the speed, the amount of processed material in the handling chamber 12 is reduced to reduce the load, and equilibrates at a predetermined appropriate position.

When cutting grains such as lodging materials and wetting materials, and the cereals are thrown into the handling chamber 12 from the pretreatment unit 5 at a stretch, each dust feeding guide 21 is individually adjusted according to the load from the processed material. If it does, the troublesome lodging material and the wetting material of the threshing process may not be transferred in time, and may cause problems such as accumulation in the handling chamber 12 and damage to the cereal. In the present invention, the front side (first) Okuchiri guide 21 _1, open to a predetermined opening degree by the load from the treated, while relatively moving the long holes 40 ₁ to the back stopper shaft 39 Then, the first arm plate 29 is rotated and the load detection switch 53 is turned on. As shown in FIG. 8, when the load detection switch 53 is turned on (S1), the state of the opening degree detection switch 55 is determined (S2). In this state, not yet reached the large amount of treated second Okuchiri guide 21 _2, the second Okuchiri guide 21 ₂ In the vicinity of the initial opening position, the opening detection switch 55 The electric motor 47 is driven in the dust feed guide opening direction (S3). As a result, the connecting plate 37 is moved in the forward direction via the sector gear 46, and the rear (second to fourth) dust feed guides 21 ₂ , 21 ₃ , and 21 ₄ are simultaneously rotated in the opening direction.

That is, as the connecting plate 37 moves, each back stopper shaft 39 moves to the front side in contact with the front end side of the long hole 40, and each dust feed guide 21 ₂ , 21 ₃ and 21 ₄ are rotated in the opening direction. As a result, the rear dust feed guides 21 ₂ , 21 ₃ , and 21 ₄ are also opened at substantially the same opening degree substantially simultaneously with the front dust feed guide 21 _1. The rearward transfer is promoted. Therefore, troublesome treatment of the above process, is transported to threshing chamber 12 without clogging, it is guided to the fourth Okuchiri guide 21 ₄ in the open position, through the communication port 60 from the threshing chamber 12 treatment It is discharged into the chamber 20 and processed by the second handling cylinder 61 in the processing chamber 20.

Further, in each of the rear dust feed guides 21 ₂ , 21 ₃ , and 21 _{4 that} are simultaneously rotated to the open position, the regulation plate 31 also rotates integrally with the first and second arm plates 29 and 30, respectively. The biasing force of the coil spring 32 is maintained at the same strength as the initial opening position, and as described above, when the load from the workpiece becomes larger than the biasing force of the coil spring 32 at the open position, Furthermore, the opening direction is adjusted.

When rotated to the second Okuchiri guide 21 ₂ is the open position, switched to ON the switch its first arm plate 29 is in contact with the opening detection switch 55. In this case, step S1 In the first Okuchiri guide 21 ₁ the open position is ON, the the step S2 in this state is turned ON, the electric motor 47 is stopped (S4). Further, the close flag is set to 1 (S5), and a delay timer is set (S6). In this state, each Okuchiri guide ₂₁ 1 to 21 ₄ is held in the open position.

When the load sensor also serves as a front (first) load from treated for Okuchiri guide 21 ₁ is reduced, first Okuchiri guide 21 ₁ by the urging force of the coil spring 32 is turned in the closing direction, said coil spring back stopper shaft 39 by 32, while moving the long holes 40 _1, also the first arm plate 29 rotates in the same direction, turns OFF the load detection switch 53 (S1; OFF). In this state, the close flag is 1 in step S5 (S7; = 1), and the sector gear 46 turns off the delay timer opening detection switch 56 by driving the electric motor 47 in the opening direction (S8). ; OFF). The load detection switch 53 is switched from ON to OFF, immediately after the delay timer is set in step S6, within the delay time of the delay timer (S9; ≠ 0), and the electric motor 47 is in the state stopped in step S4, and the delay time (predetermined time) is maintained. Therefore, even back to front Okuchiri guide 21 ₁ closes side is a load sensor, rear Okuchiri guide 21 _2, 21 _3, 21 ₄ are held in a predetermined time predetermined opening, cumbersome processing of the processing Promote the transfer of goods.

When the predetermined time has elapsed and the delay timer reaches 0 (S9; = 0), the electric motor 47 is driven in the closing direction (S10). Thus, through the sector gear 46 and the connecting plate 37, after each Okuchiri guide ₂₁ 2 _side, 21 3, 21 each back the stopper shaft 39 of ₄ is rotated in the closing direction. The first arm plate 29 can also move in the closing direction, and each dust feeding guide rotates in the closing direction by the urging force of the coil spring 32. When the sector gear 46 reaches the initial opening position, the delay timer opening detection switch 56 is turned on, the drive of the electric motor 47 is stopped (S11), and the closing flag is returned to 0 (S12).

Incidentally, the rear Okuchiri guide _{21 2,} 21 3, 21 an L-shaped plate 41 in the _four reverse direction, i.e. the rising portion of the L-shaped plate 41 is replaced with so downward, rising portion of the L-shaped plate 41 is Abutting on the side end surface of the first arm plate 29, the first arm plate 29 and the back stopper shaft 39 are prohibited from relative movement and are restricted to move integrally. In this state, the first arm plate 29 is directly rotated by the connecting plate 37 in the same manner as the regulating plate 31, the automatic response due to the balance between the coil spring 32 and the load D is stopped, and the dust feed guide 21 is forced Therefore, it is set at a predetermined position. Accordingly, the rear dust feed guides 21 ₂ , 21 ₃ , and 21 ₄ are movable only in the follow-up control by the front dust feed guide 21 ₁ that is the load sensor, and the individual autonomous load control is stopped.

Further, the control of the electric motor 47 by the front Okuchiri guide 21 ₁ is not limited to the above switch 53,55,56, other such as a potentiometer for detecting a rotational position of the front Okuchiri guide 21 ₁ of the rotation fulcrum shaft 25 Of course, this method may be used. Further, the front side (first) Okuchiri guide 21 ₁ also has been connected to the connecting plate 37 via a back stopper shaft 39 and the long hole 40 _1, with respect to the front Okuchiri guide 21 _1, long hole and The opening degree may be adjusted independently by the coil spring 32 independently without providing the back stopper shaft. Although the above-mentioned embodiment explained what arranged four dust feed guides in parallel, this may be a plurality of dust feed guides other than four.

10 threshing apparatus 11 thresher 12 threshing chamber 14 Okuchiri guide device 21 Okuchiri guide 21 ₁ front Okuchiri guide _{21 2,} 21 3, 21 ₄ rear Okuchiri guide 25 rotation fulcrum shaft 29, 30 the arm plate 31 regulating plate 32 (Torsion coil) Spring 37 Connecting plate 39 Lower limit stopper (back stopper shaft)
47 Electric motor 53 Load detection switch 55 Opening detection switch 56 Opening detection switch 60 for delay timer Communication port

Claims (4)

In the threshing apparatus, in the handling chamber, a plurality of dust feeding guides are arranged in the axial direction of the handling cylinder, and the processed material in the handling chamber is guided by the dust feeding guides and transferred from the front side to the rear side.
The front dust feed guide arranged at the foremost side among the plurality of dust feed guides is biased in one direction by a spring, and is rotated against the biasing force of the spring by a load received from the processed material. Configure the load sensor,
The rear dust feed guide arranged in parallel to the rear side other than the front dust feed guide is rotated so as to follow the rotation of the front dust feed guide.
Threshing apparatus characterized by the above. Each of the plurality of dust feeding guides is provided with an arm plate on a rotation fulcrum shaft that rotates integrally with each of the dust feeding guides so as not to be relatively rotatable, and supports a restriction plate that is relatively rotatable. The opening of the dust guides is adjusted so that the load received from the workpiece and the biasing force of the springs are balanced with the arm plate and the other end with the restriction plate. ,
The control plates of the rear dust guide are connected to each other by a connecting plate, and the connecting plate is interlocked so as to be moved by an electric motor. The electric motor is driven in the opening direction based on
The threshing device according to claim 1. An electric motor that opens and closes the rear dust feed guide;
The electric motor is driven in a direction to open the rear dust feed guide based on a predetermined opening degree rotation of the front dust feed guide that also serves as the load sensor, and the front dust feed guide returns to the predetermined opening or less. Drive in a direction to close the rear dust feed guide after a predetermined time from the state,
The threshing device according to claim 1. The treatment room is provided with a processing chamber communicating with the rear side through a communication port,
The dust supply guide arranged on the rearmost side among the plurality of dust supply guides is arranged so as to guide the processed material in the handling chamber to the communication port in a state of being opened by a predetermined opening or more.
The threshing apparatus according to any one of claims 1 to 3.

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