KR20140051192A - Threshing apparatus - Google Patents

Abstract

The present invention provides a threshing apparatus with which an appropriate automatic opening/closing of a chaff outlet control body can be performed with a small-scale operation mechanism, the occurrence of malfunctioning of the operation mechanism can be avoided with ease, and a repair and maintenance operation can be performed with rapidity. To this end, a mechanical interlocking mechanism (70) is installed on a threshing feed chain (11) side so as to transmit a displacement, directed to change an insertion support gap of a transport guide lever (22) with respect to an endless rotation chain (21), as a displacement which is required for an opening/closing posture conversion of a chaff outlet control body (60). The chaff outlet control body (60) is operated to be converted to an opening posture side when the gap between the transport guide lever (22) and the endless rotation chain (21) widens, and the chaff outlet control body (60) is operated to be converted to a closing posture side when the relative gap between the transport guide lever (22) and the endless rotation chain (21) narrows.

Description

{THRESHING APPARATUS}

The present invention relates to a rice straw discharging and conveying device for feeding and discharging threshed rice straw discharge from a handling room in the backward direction of a machine by means of an endless rotary chain and a conveyance guide lever, The present invention relates to a threshing apparatus having a braking control body for opening and closing a wind power exhaust path for exhausting air to the outside of a vehicle by wind.

BACKGROUND ART Conventionally, for example, a threshing device disclosed in JP 4-084825 A has been proposed. The threshing apparatus includes a balloon portion having a sorting device incorporated therein, a discharge port for discharging the straw straw debris to be discharged from the chaff sheave provided in the sorting device to the outside of the gas together with the screen wind, And a bounce control panel.

The bounce control panel is linked to the motion detection mechanism (detection switch) through a mechanical interlock mechanism, a motor, and a control unit. The motion detecting mechanism detects that the cutting portion has risen to a predetermined non-working position. When the preliminary mounting operation by the power steering lever is performed and the motion detecting mechanism is brought into the detection state, based on the detection result of the motion detecting mechanism, the vibration control plate automatically rocks in the direction of closing the delivery port. When the cut portion is lowered to a predetermined cutting operation position, the discharge control panel automatically oscillates in the direction of opening the discharge port.

In the threshing apparatus equipped with the above-described control valve, when the quantity of the processed substance of the sorting section is large, the amount of the substance to be discharged generated in the sorting section is increased, The shift control member is switched to the open posture so that the entrapment of dust in the second treatment becomes less likely to occur. When the processed amount of the sorting portion is small, the processed product is easily blown by the selective air. Therefore, the operation of switching the operation of the dust control member to the closed posture is performed so as to suppress or avoid the loss of the curled powder along with the selective air.

When the above-described conventional technique is employed, it is possible to automatically perform opening / closing switching of the deviation control member. However, the actuators for opening and closing the shift control member, and the control means for operating the actuators and the detecting means have to be provided, so that the operation mechanism tends to be large-sized.

It is an object of the present invention to provide a threshing device capable of performing appropriate automatic opening and closing of the shift control member by a small scale operating mechanism and also making it easy to avoid occurrence of malfunction of the operating mechanism, And the like.

In order to achieve the above object, the present invention provides a rice straw discharge and conveyance device for feeding and discharging threshing straw straw discharge from a feed room in the backward direction of a machine by an endless rotary chain and a conveyance guide lever, And a braking control member for opening /

A mechanical interlocking mechanism for transmitting the displacement of the conveying guide lever in the direction to change the inter-engaging interval with respect to the endless rotary chain as a displacement required for switching the opening / .

According to this characteristic configuration, when the amount of the processed portion of the sorting portion becomes large, the shift control member is automatically switched to the open posture, and when the amount of the processed portion of the sorting portion becomes small, the shift control member is automatically switched to the closed posture.

Since a mechanical interlocking mechanism is provided from the conveying guide lever to the threshing feed chain side and connected to the delivery control member, a part of the mechanical interlocking mechanism can be extended from the conveying guide lever to the side of the threshing feed chain. As a result, it is possible to adopt a configuration that does not cross the fan-attached deflection path located below the conveyance guide lever but bypasses the fan-attached deflection path, thereby providing a mechanical interlocking mechanism The dust discharged by the fan attaching deflection path is rarely attached to the mechanical interlocking mechanism.

For example, when the mechanical interlocking mechanism is disposed on the side opposite to the side on the side of the feed chain, a mechanical interlocking mechanism is disposed on the side of the curled-up storage tank located on the lateral side of the threshing apparatus, In the case of performing the maintenance on the mechanism, it is necessary to enter the space between the curling storage tank and the threshing device to perform the work, and the working posture becomes unstable, and there is a possibility that the working space can not be secured sufficiently. In order to secure a wide working space, it is necessary to take measures such as swinging the grained storage tank to switch to the open posture, and there is a concern that the preparation work for the maintenance work may be troublesome.

On the contrary, in the present invention, since the mechanical interlocking mechanism is disposed on the feed chain side, the maintenance operation can be performed from the transverse side end of the base body in which no other instrument is present, The work posture does not become uncomfortable, the work can be performed in a state in which the work space is sufficiently secured, and the workability can be improved.

Thereby, regardless of the change in the processed amount of the sorting portion, the shift control member is automatically switched to the open posture or the closed posture appropriate for the amount of the processed portion of the sorting portion, and the grain- And can be obtained inexpensively since it is made up of a small-scale structure having only the mechanical interlocking mechanism.

In addition, it is easy to avoid malfunction due to the dust attachment of the mechanical interlocking mechanism, and it is possible to switch the shuttle control member appropriately from this surface, and by arranging the mechanical interlocking mechanism on the side of the threshing feed chain, Can be easily performed.

In a preferred embodiment, when the gap between the conveying guide lever and the endless rotary chain is distanced from each other, the above-mentioned control member is switched to the open posture side. If the relative distance between the conveyance guide lever and the endless rotating chain is narrowed, The transfer guide lever and the shift control member are interlocked by the mechanical interlocking mechanism so as to switch the shift control member to the closing attitude side.

That is, when the amount of cereal grain (grain stalk) supplied to the feeder is increased, the amount of the processed feed supplied to the sorting section from the feeder is increased. At this time, the amount of threshed rice straw discharged from the feed room increases. Then, the amount of threshed rice straw discharged by the rice straw discharge conveying apparatus increases, and the conveying guide lever moves to the side away from the endless rotating chain.

When the amount of grain supplied to the feeder is small, the amount of the processed feed for sorting the feeder from the feeder is reduced. At this time, the amount of threshing rice straw discharged from the feed room is reduced. Then, the amount of threshed rice straw discharged by the rice straw discharge conveying device is reduced, and the conveying guide lever moves to the side close to the endless rotary chain.

Thus, if the setting interval is appropriately set on the basis of the change in the interval between the conveying guide lever and the endless rotary chain accompanied by the change in the amount of threshing straw discharge in the straw discharge conveying apparatus, The deviation control body is automatically switched to the open posture due to the separation of the conveying guide lever from the continuously rotating chain and the interlocking of the conveying guide lever and the evacuation control body by the mechanical interlocking mechanism.

When the amount of the processed portion of the sorting portion is small, the shift control lever is automatically switched to the closed position due to the approach to the endless rotary chain of the conveying guide lever and the interlocking of the conveying guide lever and the shift control member by the mechanical interlocking mechanism.

Further, it is advantageous in that the connecting portion of the mechanical interlocking mechanism is provided at the rear half portion of the conveying guide lever in the direction of the rice straw discharge and conveyance in the following respects.

Even if the discharge of the rice straw in the rice straw discharging and conveying apparatus is reduced, the treated water still remains in the sorting unit before the decrease, and the reduction in the treated water in the sorting unit is caused by the occurrence ≪ / RTI > If the connecting portion of the mechanical interlocking mechanism is set at the front half portion of the conveying guide lever in the direction of conveying the rice straw in the discharge direction of the rice straw, even if the processed product in the sorting portion remains sufficiently, There is a concern.

On the other hand, since the connecting portion of the mechanical interlocking mechanism is set at the rear half portion of the conveying guide lever in the direction of the discharge of the rice straw, the posture of the delivery control member can be switched in accordance with the processing condition in the sorting unit , It is not required to quickly switch to the closing posture despite the necessity of maintaining the evacuation control body in a state of discharging dust.

In a preferred embodiment, the mechanical interlocking mechanism includes a first linking member connected to the transport guide lever and a second linking member linked to the shift control member,

Wherein the first and second coupling members are configured to be releasable from each other,

There is provided a fixing mechanism for fixing the second linking member in an unmovable manner so as to maintain the above-mentioned control member in the open posture upon releasing the linkage.

This configuration is advantageous in the following respects.

When a part of the mechanical coupling mechanism is damaged and the linkage between the transmission control guide and the transmission control guide is disconnected, it is impossible to control the attitude of the transmission control member. , It is feared that a large amount of vacuum will be drawn into the second conveyance device or the like.

In contrast to this, in the present configuration, the linkage between the first linking member and the second linking member is released, and the second linking member is fixed by the fixing mechanism so as not to be displaced, .

As a result, even if there is a failure in the mechanical interlocking mechanism or the like, it is possible to ensure the discharge operation of the backward movement which is the minimum necessary function.

Further, it is advantageous in the following respects to provide the pushing means for pushing the above-mentioned shift control member in the closed posture.

In other words, if there is a change in the sorting wind force in the wind power distribution path, there is a possibility that the distribution control member is switched to the closed attitude and the open attitude, but the distribution control member can be maintained in the closed attitude by the urging means, Stable.

Other features and advantages will become apparent by reading the following description with reference to the accompanying drawings.

According to the present invention, a suitable automatic opening and closing operation of the shift control member can be performed by a small scale operating mechanism, and further, the occurrence of malfunction of the operating mechanism can be avoided, Can be provided.

1 to 5 are views showing a first embodiment of the present invention,
1 is a longitudinal side view of a threshing device.
Fig. 2 is a rear end elevational view of a threshing device having a mechanical interlocking mechanism linking a conveyance guide and a bobbin control member. Fig.
Fig. 3 (a) is a side view showing a state in which the braking control body is set to a closed posture, and Fig. 3 (b) is a side view showing a state in which the braking control body is set to a closed posture.
4 is a longitudinal side view showing a mounting structure of the bobbin control member;
5 is a side view showing a state in which the connection between the transmission control lever and the transmission control lever is interrupted and the transmission control member is held in the open state.
Figs. 6 to 16 are views showing a second embodiment of the present invention,
6 is a longitudinal side view of the threshing device.
7 is a side view of the threshing compartment arrangement portion of the threshing device.
Fig. 8 is a rear view of the rear end of the threshing gate arrangement portion of the threshing device. Fig.
9 is a longitudinal side view of a threshing gauge.
10 is a front elevation view of a threshing gauge crossing.
11 is a plan view of the drum main body in an unfolded state;
12 is a plan view of the inspection opening in a closed state;
13 is a sectional view taken along the line XIII-XIII in Fig.
Fig. 14 is a cross-sectional view taken along line XIV-XIV in Fig. 12;
15 is a plan view of the cover plate;
16 is a side view of the rice straw discharging and conveying device.
Figs. 17 to 34 are views showing a third embodiment of the present invention,
17 is a longitudinal side view of the threshing device.
18 is a rear end elevational view of a main portion of the threshing device.
19 is a side view of a main portion showing a configuration of a guide plate;
20 is a cross-sectional plan view of a main portion showing a configuration of a guide plate;
21 is a longitudinal side view of the first feeding portion.
22 is a longitudinal rear view of the first feeding portion.
23 is a plan view of a main portion showing a configuration of the second tubular portion and the lid.
Fig. 24 is an exploded rear elevation of the main part showing the configuration of the second tubular portion and the lid. Fig.
Fig. 25 is a rear end elevational view of a main portion showing the configuration of the second tubular portion and the lid. Fig.
26 is a plan view showing a deployed shape of the second tubular portion;
27 is a plan view showing the shape of the lid.
28 is a longitudinal side view of a main part showing an opening / closing structure of a power supply port;
29 is a rear end elevational view of a main portion showing the opening / closing structure of the delivery port;
30 is a rear end elevational view of a main portion showing a configuration of a regulating plate.
31 is a schematic side view showing a configuration of a rice straw discharge conveying apparatus;
32 is a side view of a main part showing another embodiment in which recesses are not formed in the respective plate bodies;
33 is a cross-sectional plan view of a main part showing another embodiment in which a slit is formed in each plate member;
34 is a side view of a main part showing another embodiment in which the joining edge of each plate member is inclined.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a threshing device according to the present invention will be described with reference to the drawings. Suitably, each embodiment is applicable to a threshing device of a whole culm discharging type combine-harvester. Although a plurality of embodiments are described below, it is considered that the combination of the features of one embodiment and the features of the other embodiments is included in the scope of the present invention.

In the following description, unless otherwise specified, the direction in which the working vehicle such as a combine-harvester, a harvester, or the like on which the threshing device according to the present invention is mounted is referred to as a forward-backward direction, The horizontal direction perpendicular to the front-rear direction is referred to as a left-right direction (or the horizontal direction), and the direction perpendicular to the front-rear direction and the horizontal direction is referred to as a vertical direction.

[First Embodiment]

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 (one transverse side) of the base 1 and a feed chamber 12 provided in the front of the base body A sorting section 30 having a threshing section 10, a straw discharge and conveyance apparatus 20 provided at the rear of the feeding chamber 12, and a shaking motion discriminating device 31 provided below the feeding chamber 12, A delivery unit 40 having a discharge fan 41 provided below the straw discharge and conveyance apparatus 20 and a first screw conveyor 2 and a second screw 32 provided on the bottom of the sorting unit 30, A conveyor 3 and a rice straw discharge processing device 50 provided continuously to the rear portion of the base 1.

The threshing apparatus is equipped in a combine and performs a threshing process of a cut-processed cut grain bob, which is cut by a pre-loading unit (not shown) of the combine, a threshing lob screening process, and a threshing rice straw discharge process.

That is, the threshing section 10 is provided with the threshing feed chain 11 and the feedwater 12, as well as a water supply network 13 provided below the feedwater 12, Thereby performing a threshing process of the grain bands.

That is, the threshing feed chain 11 feeds the tail end of the cut grain bar to the feedwater 12 while sandwiching and transporting the bottom side of the cut grain barrel backward. The feeding chamber 12 is provided with a feeding cylinder 14 rotatably driveable around the axis in the gas front and rear direction in the feeding chamber. The feeding end 14 of the fed cutting grain block is subjected to a tumbling process by the pulley 14. The threshing feed chain 11 takes out the threshing straw discharge from the feeding port 15 located at the rear end of the feeding chamber 12 to the rear of the feeding chamber 12.

The rice straw discharging and conveying apparatus 20 is constructed such that the transporting end side is located near the transverse side of the conveying end portion of the threshing feed chain 11 and the conveying end side is located above the straw discharging inlet 51 of the rice straw discharging device 50 And a conveying guide lever 22 provided along the endless rotary chain 21 below the conveying side of the endless rotary chain 21. The endless rotary chain 21 is provided at the rear of the endless rotary chain 21, .

1 and 3 (a) and 3 (b), the transporting end side and the transporting end side of the transporting guide lever 22 are connected to the transporting guide lever 22 in the vertical direction, Side supporting member 24 via the through-hole 23. The support member 24 on the transporting end side is fixed to a chain guide for guiding the tread feed chain 11 to travel. The support member 24 on the transporting end side is fixed to the frame 8 of the base 1. [ The supporting members 24 on the transporting end side and the transporting end side support the connecting lever 23 in a vertically slidable manner. Each of the connection levers 23 is disposed between the transport guide lever 22 and the support member 24 and is upwardly pressed by the bellows-covered spring 25 mounted on the connection lever 23. Thereby, the conveying guide lever 22 is urged by the spring 25 to approach the endless rotary chain 21.

The rice straw discharge and conveyance apparatus 20 is configured such that the basal side of the threshing and discharging straw discharged from the supply chamber 12 is transferred from the threshing feed chain 11 to the endless rotary chain 21 and the conveyance guide lever 22, In the transversely installed posture in which the trailing edge of the grain is transferred to the support rail (not shown) located at the end of the end of the rice straw discharge and conveyance apparatus 20, the endless rotary chain 21 and the conveyance guide Supported by the lever 22 in the backward direction of the base, and dropped onto the rice straw discharge port 51 of the rice straw discharge processing device 50. The unstable rotating chain 21 is arranged such that the distance from the threshing feed chain 11 is greater toward the carrying end side and the straw waste discharging and conveying apparatus 20 is arranged so that the threshing straw discharging is performed with respect to the base 1 While being moved to the opposite side.

When the amount of threshed rice straw discharged by the rice straw discharging and conveying apparatus 20 is changed, the volume of the threshing and discharging rice straw is changed, so that the conveying guide lever 22 is pressed against the reaction force from the spring To move away from or to approach the endless rotating chain (21). As a result, the distance between the conveying guide lever 22 and the endless rotary chain 21 becomes larger as the discharge amount of the rice straw is increased, and the distance between the conveying guide lever 22 and the endless chain 21 becomes smaller Lt; / RTI >

The rice straw discharge processing apparatus 50 includes a cut case 52 having the rice straw discharge opening 51 and a long rice straw discharge opening 53 provided above the rear end side of the three- . The sedan case 52 is provided with a lid 54 swingably mounted so as to open and close the straw discharge port 51. The lid 54 is provided inside the case with a cutter shaft 55 And a supply shaft 56 and a sedan rice straw discharge port 57 provided below the cutter shaft 55 and the supply shaft 56.

When the lid 54 is closed, the rice straw discharge processing apparatus 50 is in a state of processing of long straw discharge. The rice straw discharge processing device 50 guides the threshing straw from the straw discharge and transfer device 20 downward to the long straw discharge port 53 from the outer surface side of the cover 54, (53) into a long rice straw state on the ground behind the gas.

When the lid 54 is opened, the rice straw discharge processing device 50 is in a state of processing of releasing the sediment. The rice straw discharge processing apparatus 50 drops the discharged threshing straw discharge from the straw discharge and transfer device 20 into the interior of the sedan case 52 from the straw discharge opening 51, Shaped cutting blade provided integrally rotatably in the direction of the axis thereof and a disc-shaped supply blade provided so as to be rotatable integrally with the supply shaft 56 in the axial direction thereof, culm) direction, and the sediment-like rice straw discharge is dropped from the sedimentation rice straw discharge port (57) to the ground.

The sorting unit 30 is provided with the swing sorting device 31 as well as the tuyeres 32 provided below the front end side of the swinging sorting device 31 and the rear And a processing rotating body 33 provided on the rotating shaft.

The processing rotary body 33 is rotatably driven around the axis in the transverse direction of the machine so that the straw straw debris discharged from the feed mouth 15 of the feeder 12 is fed to the upper straw rack upper the straw is removed from the rice straw 34, and the grains are removed from the straw straw.

The shaking motion separating apparatus 31 includes the above-described upper straw rack 34 and a grain pan 35 and a chaff sheave 36 located below the water channel 13. The chaff sheave 36 And a straw sheave 37 provided at the rear of the sheath 36. The sheave 38 is provided below the sheath sheave 36. [

The sorting section 30 selects the processed product from the processing rotating body 33 and the processed product that has fallen and supplied from the supply chamber 12 through the water channel 13 to the swing selection device 31, The treated water for treatment 1, the treated water for treatment 2, the treated water for straw, the straw straw scraps, and the like are sorted by the balloon according to the sorting air supplied toward the delivery unit 40 by the tuyeres 32, And the processed material 2 are dropped from the shaking motion separating apparatus 31, and the processed material for discharge is sent to the delivery unit 40.

The first screw conveyor 2 transports the first processed material dropped from the shaking motion discriminating device 31 to the transverse side of the base 1 and supplies it to the grain lifting device 4. The grain machine 4 feeds the threshing lips to a grape tanks (not shown) of the combine. The second screw conveyor 3 transports the second processed material dropped from the oscillation discriminating device 31 to the transverse outer side of the base body 1 and supplies it to the reducing device 5. The reducing device 5 carries the processed material No. 2 to a reducing mouth formed on the transverse side wall of the base body 1 and feeds it into the body through the reducing mouth to reduce it to the front end side of the oscillating screening device 31.

The delivery section 40 includes a fan attachment-detour path A having the fan 41 and a wind-deflecting path B provided below the fan attachment-detour path A.

The fan attaching deflection path A is formed by a fan case 42 in which the deflection fan 41 is movably accommodated and the fan attachment deflection path A is provided with the deflection fan 41 A dust suction port 43 made of a suction port of the fan case 42 and a dust discharge port 44 made of a discharge port of the fan case 42. [

The dust suction port 43 is located above the rear end of the shaking motion discriminating device 31 so as to open toward the shaking motion discriminating device 31. The dust outlet 44 is located inside the sedan case 52 so as to open toward the sedan rice straw discharge port 57.

The fan attachment and detachment path A sucks the processing article for discharge from the rear portion of the sorting section 30 from the dust suction port 43 by the feeding force of the dust outlet fan 41, And is discharged from the dust outlet 44 through the sedan case 52 to the outside of the airframe. The fan-attached backlash path A sucks and discharges a part of the selective air from the tuyeres 32 together with the treated water.

The wind deflection path B is formed by a portion 42a positioned below the fan 41 of the fan case 42 and a rear end of the shaking motion separator 31, (31). The wind power distribution path B is provided with a dust outlet 45 formed at the rear end of the base 1 and disposed below the dust outlet 44 of the fan attachment back path A. The dust outlet 45 is open toward the long straw discharge port 57 of the sedan case 52.

The wind deflecting path B is a path for guiding the processed material for discharge from the sorting unit 30 by the feed force of the air flow from the tuyeres 32 and moving the dust case 52 from the dust outlet 45, To the outside of the gas.

The wind power distribution path (B) includes a plate-shaped power supply control member (60) provided at a portion slightly inwardly inward of the dust outlet (45). As shown in Fig. 2, the above-described shift control member 60 is capable of swinging on the right and left side walls 1a of the base 1 via a rotation support shaft 61 integrally rotatably mounted on the upper end thereof .

3 (a) is a side view of the backward control body 60 in the closing posture CL. As shown in this figure, when the operation of rotating the rotation support shaft 61 is pivoted downward about the transverse axis of the body of the rotation support shaft 61, The posture CL is obtained. Then, the distribution control body 60 is in an attitude crossing with the flow direction of the processed water in the wind force distribution path (B) so as to suppress the passage of the processed products in the wind power distribution path (B).

3 (b) is a side view of the shift control member 60 in the open position OP. As shown in this figure, when the rotation control shaft 60 is rotated by the rotation of the rotation support shaft 61 to the up side about the transverse axis of the gas, (OP). Then, the back-shift control body 60 becomes a posture along the process-material moving direction of the wind-force backward path B so as to facilitate the passage of the processed product of the wind-induced backbone path (B).

As shown in Fig. 2, the above-described shift control member 60 includes a follower arm 61, which is integrally rotatably mounted on the end of the rotation support shaft 61 so as to be connected to the side on which the above- Is interlocked with a portion to which the connecting lever 23 on the conveying end side of the conveying guide lever 22 is connected by the mechanical interlocking mechanism 70 having the conveying guide lever 71.

Fig. 2 shows the structure seen from the rear side of the mechanical interlocking mechanism 70. Fig. Figures 3 (a) and 3 (b) show the structure seen from the side of the mechanical interlocking mechanism 70. As shown in these drawings, the mechanical interlocking mechanism 70 includes a link mechanism L having the follower arm 71, and a link mechanism L which is provided on the outside of the fan- And a cam type interlocking portion 80 provided so as to extend over the rotation lever shaft 72, the connecting lever 23, and the end of the connecting lever 23 and the rotary shaft 72 on the side of the thrashing feed chain Consists of.

3 (a) and 3 (b), the link mechanism L includes not only the driven arm 71 but also the cam-like linked portion 80 of the rotational shaft 72 And an interlocking link 74 connecting the swinging arm 73 and the follower arm 71 to the swinging arm 73. The swinging arm 73 is rotatably supported by an end of the swinging arm 73, Respectively. The link mechanism L is configured such that the fan attachment-back path A and the source-back control member 60 are provided outside the fan attachment-back path A and the wind path D at the threshing feed chain side, (26) of the threshing straw discharge conveyed by the discharge conveying device (20).

3 (a) and 3 (b), a pushing spring 75 as an urging means is provided at the intermediate position in the longitudinal direction of the follower arm 71, and the urging spring 75 And is pressed in the closed posture (CL). The shift control member 60 shifts the total value of the spring pushing the pressing spring 75 and the conveying guide 22 toward the endless rotary chain 21 toward the closed position Even if a stopper 76 for receiving the shift control member 60 urged by the urging spring 75 is provided as shown in Figs. 2 and 3A and 3B good.

The mounting structure of the shift control member 60 will be described. 4, the rotation support shaft 61 is laid over the left and right lateral side walls 1a, the attachment plate frame 62 is fixed along the axial direction of the rotation support shaft 61, The stopping plate 63 is secured to the plate frame 62 by bolts so as to suspend the stopper plate 63 for mounting from the plate frame 62 for mounting. The shift control member 60 is constituted by a rotation support shaft 61, a mounting plate frame 62, and a retardation storage stop plate portion 63.

3 (a) and 3 (b), the cam type interlocking portion 80 includes a rocking type movable arm 81 which is integrally rotatably provided at an end of the rotation axis 72, And a transmission member 82 formed of a round bar which is connected to the lower end of the connecting lever 23 so as to extend toward the driven arm 81.

The driven arm 81 has a cam surface 83 formed on the circumferential surface of the cam surface forming body attached thereto. The transmission member (82) is configured so that its extending end portion is in contact with the cam surface (83). The driven arm 81 is pivotally pressed through the link mechanism L by the urging spring 75 serving as an urging means for urging the transmission control member 60 in the closing posture CL, 83 to the extending end portion of the transmission member 82. As shown in Fig.

The cam type interlocking portion 80 is provided so that the contact between the extending end of the transmission member 82 and the driven arm 81 is shifted to a position where the transfer guide lever 22 is moved to approach or move away from the endless rotary chain 21 The transfer guide lever 22 and the rotation shaft 72 are interlocked with each other so that the transfer guide lever 22 and the shift control member 60 are interlocked as follows.

3 (b), the conveying guide lever 22 is moved so as to be spaced apart from the endless rotary chain 21, and the interval between the conveying guide lever 22 and the endless rotary chain 21 When the setting interval D is reached, the shift control member 60 is set to the open position OP, and the transfer guide lever 22 is moved to the endless rotary chain 21 as shown in FIG. And when the distance between the conveying guide lever 22 and the endless rotary chain 21 becomes smaller than the set interval D (less than the set interval), the deviation control member 60 moves to the closing posture CL ).

When the distance between the conveying guide lever 22 and the endless rotary chain 21 becomes equal to or greater than the set interval D (more than the setting interval), the endless rotation of the conveying guide lever 22 in this case The transmission to the chain 21 is absorbed by the sliding contact of the extended end of the transmission member 82 with respect to the cam surface 83 and the transmission from the transmission guide lever 22 to the transmission control member 60 is cut off, The body 60 is held in the open position OP and interlocked.

In other words, the mechanical interlocking mechanism 70 is configured so that the mechanical interlocking mechanism 70 moves from the portion where the connecting lever 23 on the conveying end side of the conveying guide lever 22 is connected to the outside on the upper side of the fan attaching backward path A, Passes through the outside of the path A on the side of the threshing feed chain and reaches the side of the threshing feed chain of the delivery control member 60 and is connected to the delivery control member 60. The delivery guide lever 22 and the delivery control member 60 are interlocked.

Thereby, when the conveying guide lever 22 is moved so as to be spaced apart from the endless rotary chain 21 by the setting interval D or more, the deviation control member 60 is brought into the open posture OP in conjunction with this, When the conveying guide lever 22 moves so as to be positioned below the setting interval D with respect to the endless rotary chain 21, the transmission control body 60 becomes the closing posture CL in conjunction with this.

When the amount of the cereals to be fed to the feeding chamber 12 increases, the amount of the processing material fed from the feeding chamber 12 to the sorting portion 30 increases, Loses. Then, the dust mixture of the No. 1 treatment or the No. 2 treatment becomes more likely to occur. When the amount of cereals to be fed to the feeding chamber 12 is reduced, the amount of the processing amount supplied from the feeding chamber 12 to the sorting portion 30 is reduced. As a result, scattering of the curled grains due to the selective wind is likely to occur. The larger the amount of grain fed to the feeding chamber 12 is, the greater the amount of threshing and feeding rice straw supplied to the rice straw discharging and conveying apparatus 20 is, and the greater the distance between the conveying guide lever 22 and the endless rotating chain 21, As the setting interval D, an interval that occurs when the quantity of the processing for discharging generated in the selector 30 increases is set.

Thus, when the amount of the grain fed to the feeding chamber 12 increases, the delivery section 40 moves away from the endless rotation chain 21 of the delivery guide lever 22 by more than the set interval D, The interlocking mechanism 70 automatically switches the transmission control member 60 to the open position OP so that the processed product for the discharge from the sorting unit 30 is guided to the fan attachment- (B).

When the amount of the grain fed to the feeder 12 is reduced, the feeder 40 is moved by the movement that is located below the set interval D with respect to the endless rotary chain 21 of the feed guide lever 22, The mechanism 70 automatically switches the transmission control body 60 to the closing attitude CL and the processing object to be discharged from the sorting unit 30 is moved mainly by the fan attachment- .

Next, a description will be given of a configuration in which the shift control member 60 is held in the open posture OP.

As shown in Figs. 3 (a) and 3 (b) and Fig. 5, the swinging arm 73 connected to the conveying guide lever 22 is a first linking member. On the other hand, the interlocking link 74 connected to the transmission control member 60 serves as a second interlocking member. The swing arm 73 and the interlocking link 74 are configured to be releasable by releasing the pin 77 connecting them.

After the linkage of the swing arm 73 and the interlocking link 74 is released, the interlocking arm 74 and the interlocking link 74 are engaged with each other. And is pivoted from the vicinity of the rotary support shaft 61 toward the starting end of the rice straw discharge and transportation, and is switched from the posture indicated by the broken line in Fig. 5 to the posture indicated by the solid line. The leading end of the interlocking link 74 is mounted and fixed to the lateral side wall 1a of the base 1 (see Fig. 2). A fixing bolt hole 1b for fixing the front end portion of the interlocking link 74 (a fixing bolt hole 1b for fixing the front end portion of the interlocking link 74) is formed in the lateral side wall 1a, An example) is formed. The bolt hole 1b as the fixing mechanism may be a screw hole.

[Other embodiments of the first embodiment]

Instead of the cam-like linked portion 80 shown in the above-described embodiment, the extending end of the interlocking member 82 and the swingable driven arm 81 may be connected directly via a connecting pin or the like.

Instead of the deviation control element 60 shown in the above-described embodiment, a deviation control element configured in a rake type may be employed.

The connecting portion of the mechanical interlocking mechanism 70 is provided at the end position of the conveying guide 22 but the connecting portion may be provided at the rear half portion of the conveying guide lever 22 in the direction of conveying the rice straw.

As the pressing means, a torsion spring or the like other than the coil spring can be used. However, when the self-weight of the shift control member 60 can be used to set the shift control member 60 to the closing attitude CL, the pressing spring 75 may not be provided.

[Second Embodiment]

Next, a second embodiment will be described with reference to Figs. 6 to 16. Fig.

In the second embodiment, the elevation 101 is divided into a plurality of inspection openings 142 formed in a state of being close to the peripheral wall 131 of the drum 130, And one cover plate 150 having a plurality of cover portions 151 that are closed and actuated.

Generally, in a threshing ramp, a check opening is formed in the circumferential wall of the ramp, and in the course of the ramp production, the ramp is installed with the threshing teeth, or the ramp is worn Use a check opening to exchange work. For example, in JP-A 2005-253388 A, an inspection hole is formed at the front and rear intermediate portions of the outer circumferential surface of the slide drum. However, in this prior art, there is a problem with regard to the strength of the drum, or a problem with working through the inspection opening. That is, in order to provide an area for facilitating the operation, it is necessary to provide one notched portion with the area to the slide drum when the opening for the assembly or replacement of the feed dog is formed by one check opening And there was a tendency that the strength drop due to the formation of the inspection opening of the drum was great.

On the other hand, according to the configuration of the second embodiment, the work opening having the area facilitating the above-described operation is formed by the sum of the plurality of inspection openings 142. Therefore, the notch formed as one check opening 142 can be made smaller, so that the strength reduction due to the formation of the opening of the drum 130 can be suppressed.

One cover plate 150 is closed by a plurality of check openings 142 and the cover plate 150 is bent with respect to the ramps 130 between the check openings 142 It reinforces to be difficult. This makes it possible to effectively reinforce the turntable 130 by the cover plate 150. The total size of the check opening 142 (the sum of the opening areas of the plurality of check openings 142) can be made larger.

Therefore, it is possible to provide excellent strength to the slide drum 130, and to increase the opening area of the inspection opening 142 as a whole, so that the operation such as the exchange of the feed dog can be performed easily and efficiently.

The cover plate 150 preferably has a downstream side end overlapping with the outer surface of the peripheral wall 131 of the drum 130 at the downstream side in the rotation direction R of the drum And an upstream side end portion 152 which overlaps the outer peripheral surface of the peripheral wall 131 of the turntable drum 130 upstream of the inspection opening 142 in the direction of rotation of the drum in the rotation direction R of the drum. The length L1 of the downstream side end portion 153 in the rotational direction R of the driven drum is set to be larger than the length L2 of the upstream side end portion 152 in the rotational direction R of the driven drum.

The downstream side end portion 153 of the cover plate 150 is located on the outer surface of the peripheral wall 131 of the slide drum 130 and is located on the downstream side in the rotation direction R of the slide drum do. Therefore, wear at the downstream side end portion 153 is liable to occur due to contact with the crest of the grazing grain bed or the curved grains. However, in this configuration, since the length L1 of the downstream end 153 in the rotation direction R of the drum 6 is set to be larger than the length L2 of the upstream end 152, the downstream end 153, it takes a longer time until the cover plate 150 becomes unusable. Therefore, the cover plate 150 can be used over a longer period of time, and excellent durability can be obtained.

Hereinafter, the second embodiment will be described in more detail.

6 is a longitudinal side view of the threshing device provided with the swing 101 according to the second embodiment. As shown in this figure, the threshing device comprises a threshing section 103 having a feed chamber 110 positioned inside the front side of the base 102, A straw straw discharging and conveying device 104 composed of a rotating chain and a sorting unit 105 having a swing sorting device 120 in which the front end side is located below the feeding chamber 110. [

The threshing section 103 includes a feed opening 101 which is rotatably driven around a rotary axis in the fore and aft direction of the hoisting machine body in the feed room 110 as well as the feed room 110, And a threshing feed chain 112 which is rotatably driven on the outside of the base body 102. The tread feed chain 112 is provided on the outer periphery of the tread portion 101,

The threshing section 103 is supported by the threshing feed chain 112 in the backward direction of the threshing machine body by supporting and supporting the bottom side of the cut grain bands and the end of the cut grain bands is connected to the feed 101 111, and the threshed rice straw discharge is taken out of the feeding opening 113 located at the rear portion of the feeding chamber 110 by the threshing feed chain 112.

As shown in Figs. 7 and 8, the threshing portion 103 is provided with a scattering prevention portion 115 provided on the threshing hole 114 over its entire length. The scattering prevention member 115 receives the droplets scattered by the rotation of the pulsation 101 so as not to fly toward the bottom side of the gravelled grain band, and returns it to the inside of the feed chamber. That is, it prevents the curl from scattering to the base side of the grain bundle conveyed by the threshing feed chain 112. The anti-scattering piece 115 is constituted by a canvas supported by an upper lip plate 116. The scattering prevention piece 115 is divided into two parts by the dividing line located at the intermediate position in the fore and aft direction of the threshing machine 114 and the dividing piece located on the gas front side And two divided cannons divided into a plurality of divided cannons located at the bottom of the divided cannon.

The rice straw discharge and conveyance device 104 transfers the threshed rice straw discharge carried out from the supply room 110 from the threshing feed chain 112 to the backward direction of the threshing machine body and from the discharge port located at the rear part of the body 102 And discharged to the outside of the threshing machine.

The sorting unit 105 includes the swaying sorting device 120 as well as a tuyere 121 provided below the front end of the swaying sorting device 120 and a tuyere And a second screw conveyor 124 provided at a bottom portion of the sorting chamber in the front and rear direction of the oscillating screening device 120. The first and second screw conveyors 123,

The sorting unit 105 separates the throat processed product dropped from the supply chamber 110 through the water pipe 111 by shaking selection by the shaking motion separating apparatus 120 and by the sorting air supplied by the tuyeres 121, And the processed material 2 is dropped onto the screw conveyor 123. The processed material 2 is dropped onto the second conveyor 124 and the dust is discharged along with the selective air, And is discharged from the discharge port of the fan 122 or the discharge port located at the rear portion of the base 102 to the outside of the base.

The No. 1 screw conveyor 123 transports the first processed material dropped from the oscillation screening device 120 to the lateral and lateral sides of the base 102.

The No. 2 screw conveyor 124 carries the processed material 2 dropped from the oscillation screening device 120 to the lateral outer side of the base 102. The second processed material from the No. 2 screw conveyor 124 is lifted by the conveying device 106 provided on the transverse outer side of the base 102 to a reducing orifice formed on the lateral wall side portion of the base 102, Is introduced into the interior of the base 102 from the reducing port and reduced to the front end side of the swing sorting device 120.

Next, the aforementioned ramp 101 will be described in detail.

9 is a longitudinal side view of the elevation 101. Fig. 10 is a cross-sectional view of the above-mentioned ram 101. Fig. As shown in these figures, the ramp 101 is provided with a ramp 130 and an outer surface of the peripheral wall 131 of the ramp 130 in the circumferential direction of the ramp 130, And a plurality of tactics 132, 133 installed in a planting arrangement.

The trailing edge 132 installed at a portion located on the front side of the feeding drum 130 of the trailing teeth 132 and 133 is provided with guiding teeth And the edge 133 disposed at the other portion is a juxtaposition (竝 齒).

The ram 101 is provided with a support shaft 134 penetrating the drum 130 and is rotatably mounted to the supply chamber 110 by the support shaft 134.

The drum 130 includes a cylindrical drum body 135 constituting the peripheral wall 131 and side walls 136 and 137 connected to both ends of the drum body 135.

11 is a plan view of the drum main body 135 in an unfolded state. 9 and 10, the drum main body 135 is formed by bending a sheet metal into a cylindrical shape, and the end portions 135a on both sides in the circumferential direction of the drum body of the sheet metal are fixed to the drum main body 135, (In the radial direction of the drum 130).

As a result, the drum 130 is made of sheet metal. The sliding drum 130 is provided with a joining portion 138 in which the sheet metal constituting the peripheral wall 131 is joined at one place in the circumferential direction of the sliding drum 130. The joining portion 138 is formed by joining the both ends 135a of the sheet metal constituting the drum body 135 to each other.

As shown in FIG. 12, the slide drum 130 is provided with a reinforcing rib 140 (hereinafter referred to as an end portion) provided at one end of the peripheral wall 131 in the direction of the axis of rotation of the drum A plurality of reinforcing ribs 141 provided in the circumferential wall 131 in the circumferential direction of the drum 1 in the direction of the axis of rotation of the drum 1 in the direction of the axis of rotation of the drum 1, (Hereinafter referred to as a middle reinforcing rib 141). 8, each of the reinforcing ribs 140 and 141 is constituted by a ridge formed on the peripheral wall 131 by press-molding a sheet metal constituting the peripheral wall 131 have. The protrusions constituting the reinforcing ribs 140 and 141 protrude toward the outer surface of the circumferential wall 131.

9 and 10, the ram 101 is provided with a pair of check openings (not shown) provided in the circumferential wall 131 of the slide drum 130 in the direction of the rotation axis of the slide drum 130 142, and 142, respectively.

12 is a plan view of the pair of check openings 142 and 142 in a closed state. 13 is a cross-sectional view taken along line XIII-XIII in Fig. Fig. 14 is an XIV-XIV cross sectional view of Fig. 12; Fig. As shown in these drawings, the pair of check openings 142 and 142 are closed by attaching one cover plate 150 to the surface side of the peripheral wall 131. As shown in Fig. The cover plate 150 is provided with a plurality of cutouts 133 (juxtaposition) projecting to the surface side thereof.

15 is a plan view of the cover plate 150. FIG. 12 to 14, the cover plate 150 is provided with a pair of lid portions 151 and 151 projecting in the direction of the axis of rotation of the rotation drum in the direction of the axis of rotation of the drum, An upstream end 152 positioned at an upstream end of the cover plate 150 in the rotation direction R of the drum 1 and an upstream end 152 positioned at an upstream end in the rotation direction R of the rotary drum of the cover plate 150, And a transverse end 154 located at both ends of the cover plate 150 in the direction of the rotation axis of the drum.

The length of the downstream end 153 in the direction of rotation of the ram 15 in the direction in which the gap between the end of the downstream end 153 and the end of the lid 151 on the downstream side in the direction of rotation of the drum (L1) is set larger than the length (L2) of the upstream end portion (152) in the rotating direction of the drum.

12 to 14, the cover plate 150 is formed so that the upstream side end portion 152 is positioned on the upstream side of the check opening 142 in the direction of rotation of the drum-type drum R And the downstream side end portion 153 overlaps the outer surface of the peripheral wall 131 on the downstream side of the check opening 142 in the direction of rotation of the drum in the direction of rotation of the drum And mounted on the wall 131. Mounting of the cover plate 150 to the peripheral wall 131 is performed by attaching the connecting bolts 155 mounted on the upstream side end portion 152 and the downstream side end portion 153 and the bolt holes 155 formed on the transverse side end portion 154 And a bolt hole 155 formed between the pair of cover parts 151, The cover plate 150 then operates the pair of lid portions 151 and 151 to selectively open the pair of check openings 142 and 142 to close the pair of check openings 142 and 142.

14, the connecting bolt 156 connecting the downstream end 153 to the peripheral wall 131 is connected to the axial center of the connecting bolt 156 and the center of the downstream end 153, And the distance from the end on the downstream side in the drum rotation direction is D1. The connecting bolt 157 connecting the upstream side end portion 152 to the peripheral wall 131 is connected to the axial center of the connecting bolt 157 and the end portion of the upstream side end portion 152 on the upstream side in the rotational direction And the interval is set to D2. The interval D1 of the connecting bolts 156 of the downstream side end portion 153 is set to be larger than the interval D2 of the connecting bolts 157 of the upstream side end portion 152. [

That is, the downstream end 153 is located on the outer surface of the peripheral wall 131, and the downstream end 153 is located downstream of the upstream end 152 in the direction of rotation of the drum, Abrasion is likely to occur at the side end portions 153 due to contact with the crest of the grazing grain bed or the curved grains. Even if the distance D1 from the connecting bolt 156 to the end of the downstream side end portion 153 increases to cause wear on the downstream side end portion 153, the wear reaches the connecting bolt 156, It takes a long time until the mounting failure occurs.

Fig. 11 shows the open state of the pair of check openings 142 and 142. Fig. As shown in the figure, the pair of check openings 142 and 142 are opened by releasing the cover plate 150, and an operation such as installing or replacing the catch plates 132 and 133 is performed , An opening for inserting a hand or a tool into the inside of the tumbler is formed in the drum (130). The pair of check openings 142 and 142 are arranged close to each other so as to be able to work by inserting the hand from the check openings 142 on both sides.

As shown in FIGS. 12 and 14, the pair of check openings 142 and 142 are located in the vicinity of the joining portion 138 and are located close to the middle reinforcing ribs 141, Are arranged in the direction of the axis of rotation of the drum 130 by interposing a pair of reinforcing ribs 141 therebetween.

As a result, the pair of check openings 142 and 142 can be prevented from being damaged by the reinforcing action of the joint portion 138 exerting the strength reduction due to the formation of the opening of the drum 130 and by the reinforcing rib 141 The operation opening of the drum 130 is formed.

As shown in Fig. 7, the ram 101 includes a counterweight 160 provided on the inner surface side of the peripheral wall 131 of the drum. The counterweight 160 aims to balance the rotation of the ram 101 so as to rotate the ram 101 in a good balance of rotation irrespective of the existence of the cover plate 150 or the joining portion 138.

16 is a side view of the rice straw discharge / transfer device 104. FIG. As shown in this drawing, the rice straw discharge and conveyance apparatus 104 has a swing support point 104a provided on the conveying end side of the straw discharge and conveyance apparatus 104.

The straw discharge and conveyance apparatus 104 shown by the chain double-dashed line in FIG. 16 is a straw straw discharge and conveyance apparatus in the descending conveyance state, and the straw discharge and conveyance apparatus 104 indicated by the solid line in FIG. 16 is the straw waste discharge conveyance apparatus in the ascending and pivotal state .

That is, when the rice straw discharge clogging occurs, the upper lid 102a of the base 102 is lifted up and down. The stopper 140 for the straw discharge and conveyance apparatus 104 is raised by the upward swinging motion of the upper lid 102a so that the straw discharge and conveyance apparatus 104 is brought into the descending conveyance state in which it approaches the conveyance guide lever 141 Releasing the holding action. Since the rising operation force by the discharge of clogged straw is applied to the straw discharge conveying apparatus 104, the conveying start end side of the straw discharge conveying apparatus 104 is moved around the swing support point 104a by the fixing guide 142 And guided and raised by the guide rails 143. As a result, the distance between the straw discharge conveying device 104 and the conveying guide lever 141 is widened, the strong gripping of the clogged straw discharge by the straw discharge conveying device 104 and the conveying guide lever 141 is released, The clogged rice straw is easily removed.

[Another embodiment of the second embodiment]

Instead of securing an opening of a required size by a pair of check openings as in the above-described embodiment, it is also possible to employ a configuration of securing an opening of a required size by three or more check openings. In this case as well, the object of the present invention can be achieved.

[Third embodiment]

Next, a third embodiment will be described with reference to Figs. 17 to 34. Fig.

In the third embodiment, the threshing apparatus has a sandwich support conveying mechanism 206 for conveying the cut grain bobbins while supporting the bottom side of the cut grain bobbins, and a spindle of the cut grain bobbles conveyed by the sandwiching support conveying mechanism 206 And a guide plate 247 for guiding a curl flowing down to the base side of the cut grain bobbin in accordance with the rotation of the swing 209 toward the swing 209. The guide plate 247 is constituted by a plurality of platelets aligned and arranged along the conveying direction of the cut grain bands at a position above the cut loose grains conveyed by the fitting supporting and conveying mechanism 206. The plurality of plate bodies are disposed so as to be opposed to each other so that the rear end edge 248A of the front side plate body 248 adjacent to the front and rear sides is in contact with the front end edge 249A of the rear side plate body 249.

The guide plate as described above is a guide plate that guides the curl flowing downward to the base side of the cut grain bundle in accordance with the rotation of the feed grains toward the rake so that the curl is drawn into the base side of the cut grain bundle conveyed by the sandwich support conveying mechanism Whereby it is possible to prevent the grains obtained by the threshing process from becoming burrs and to be discharged to the outside of the base together with the grain bobbins after the threshing process and to improve the recovery efficiency of the grains .

Conventionally, the guide plate (the embossed grooving preventing member) is constituted by a single plate vertically slidably supported on a fitting rail of a fitting supporting and conveying mechanism (feed chain unit). However, In the case where the guide plate is constituted by a plurality of plates, it has been conceived that the plates are arranged so as to have a gap between the plates adjacent to the front and rear (for example, JP 2006-014604 A (see paragraphs 0023 to 0032, Figs. 3 (a) and (b) to 9)).

When the guide plate is constituted by a single plate, when the guide plate is deformed, deficient or abraded due to use for a long period of time, it is necessary to replace the entire guide plate, so there is room for improvement in terms of economy .

When the guide plate is constituted by a plurality of plates, when the guide plate is deformed, deficient or abraded due to use for a long period of time, only the plate in which the deformation or deficiency thereof has occurred can be replaced and the entire guide plate needs to be replaced It is advantageous from the viewpoint of economical efficiency.

On the other hand, as described above, by providing the gaps between the adjacent front and rear plates, the grains falling into the base side of the prepared grain bands through the gaps become crumpled grains, and are discharged to the outside of the gaseous body together with the post- And the efficiency of the recovery of the grains is reduced accordingly.

Further, the conveying clogging of the cut grain bands due to the gap between the bottom side of the cut grain bands conveyed by the fit-in support conveying mechanism and the reduction performance of the treading performance due to disturbance of the conveyance posture .

According to the characteristic configuration of the threshing device of the third embodiment, the curved line that flows down to the base side of the sorted grain bands as the rotation of the swash plate 209 is guided by the guide plate 247 toward the swash plate 209. By arranging the plurality of plates 248 and 249 constituting the guide plate 247 in the forward and backward direction, it is possible to effectively prevent the leaking of the grain from the gap between the adjacent plate bodies toward the bottom side It is possible to effectively suppress the possibility that the bottom side of the cut grain bundle conveyed by the fit-in support conveying mechanism 206 is pulled into between the front and rear adjacent plates.

Thereby, it is possible to more reliably suppress the possibility that the curl obtained by the threshing treatment becomes crushed curry which is introduced into the base side of the removed grain bundle conveyed by the sandwiching and conveying mechanism 206 and is discharged to the outside of the gas together with the grain- .

In addition, since the bottom of the cut grain bundle conveyed by the fit-in support conveying mechanism 206 is conveyed between the front and rear adjacent plates 248 and 249, the conveying clogging of the cut grain barrel or the conveying posture Can be effectively restrained, and it is possible to effectively prevent the conveying clogging, the deterioration of the threshing performance due to the disturbance of the conveying posture, and the like.

In addition, when the guide plate 247 is deformed or defective, it is possible to cope with the problem by replacing only the plate member 248 or 249 at the site where the guide plate 247 is deformed or defected without replacing the entire guide plate 247.

Therefore, it is possible to economically perform a countermeasure in the case where deformation, deficiency, or the like occurs in the guide plate 247, while preventing deterioration of the recovery efficiency of the curled grains caused by the burrs and effectively suppressing the deterioration of the threshing performance .

The guide plate 247 is formed such that an end of the guide plate 247 on the side of the swash plate 209 is drawn inward of a rotational locus drawn by the tip of the feed dog 220, And recesses 248B and 249B that allow passage therethrough are formed.

According to this characteristic configuration, the curvature of the guide plate 247, which flows down to the base side of the prepared grain bands as the rotation of the sweep 209 does not cause breakage due to interference between the guide plate 247 and the feed teeth 220, To the ram 209 more reliably. As a result, it is possible to more reliably prevent the grains obtained by the threshing process from becoming burrs and discharged together with the removed grains after the threshing process.

It is also appropriate that the front end portion of the guide plate 247 is disposed so as to be located on the rear side of the front end portion of the flywheel 209.

According to this characteristic configuration, as compared with the case where the front end portion of the guide plate is disposed so as to be positioned at the same front and rear position as the front end portion of the feed cam, or the case where the front end portion of the guide plate is disposed so as to be located further forward than the front end portion of the feed cam, It is possible to suppress the possibility that the cut grain fed to the threshing process region of the flywheel 209 by the support conveying mechanism 206 becomes difficult to be fed into the threshing processed region of the flywheel 209 by the contact with the guide plate 247 can do.

Since the amount of curl obtained by the threshing process is small and the amount of the curved grain flowing down to the base side of the sorted grain bands is small in accordance with the rotation of the swing 209, the guide plate 247 is arranged at the front end Even if it is disposed so as to be located on the rear side of the front end of the auxiliary cam 209, the possibility that the curl obtained by the threshing process becomes crushed is lowered. In addition, even if a crushed grain is generated at the front end side, the crushed grain can be loosened from the bottom side of the sorted grain band by a threshing process of a tilting portion occupying most of the portion other than the front end side of the tilt 209.

Therefore, by reasonably arranging the guide plate 247, it is possible to prevent the conveying clogging of the removed grain bands caused by the contact with the guide plate 247 at the beginning of the threshing process It is possible to suppress disturbance of the conveying posture (threshing posture) of the removed grain bins, and to prevent the conveying clogging and the deterioration of the threshing performance due to the disturbance of the conveying posture.

The swing 209 is preferably a forward and backward split structure having a first swing portion 216 forming the front side and a second swinging portion 217 forming the rear side, So that the rotational speed of the second feeding portion 217 is made higher than the rotational speed of the moving portion 216.

According to this characteristic configuration, since the first feeding portion 216 is rotationally driven at a relatively low speed, it is possible to suppress the generation of cut straw, rice straw crumbs, and the like due to the threshing process in the first feeding portion 216. [ As a result, it is possible to prevent uneven granulation of the grains by the threshing process due to the cut straw or the straw straw crumb that occurs on the upstream side of the threshing process region, Can be suppressed.

In addition, the second feeding portion 217 is rotated at a relatively high speed, so that it is possible to effectively loosen and drop the curling that has been guided by the guide plate 247 to the cutting edge side of the cut grain bands. Thereby, it is possible to effectively prevent the grains obtained by the threshing process from being discharged to the outside of the gas together with the grains removed after the threshing process.

Therefore, it is possible to more effectively prevent the deterioration of the recovery efficiency of the curled grains due to the crushed grained, in addition to the improvement of the sorting efficiency and the sorting accuracy in the promotion of the grain bleeding by the threshing treatment and the sorting treatment after the threshing treatment .

It is also appropriate that the guide plate 247 is arranged such that its rear end is located on the rear side of the rear end of the rake 209.

According to this characteristic configuration, even in the rear end side of the rotation shaft 209 or the rear side of the rotation shaft 209, the curvature that flows down to the base side of the cut grain bins as the rotation of the rotation shaft 209 is performed by the guide plate 247 It is possible to guide the driver to the steeply ascertainment. Thereby, it is possible to prevent the curling obtained by the threshing process from entering the base side of the cut grain band conveyed by the sandwiching and conveying mechanism 206 at the end portion of the threshing process region.

Particularly, when this feature is applied to the swing 209 of the front and rear split structures, the rotation speed of the second swinging portion 217 is increased, so that the swirls, which tend to rotate together with the second swinging portion 217, 247 to the ram 209 without fail.

Therefore, it is possible to reliably prevent the deterioration of the recovery efficiency of the curled grains due to the burrs at the end portions of the threshing process region.

It is also appropriate that the guide plate 247 is mounted on the outer surface of the upper case 202 covering the swing cam 209.

According to this characteristic configuration, as compared with the case where the guide plate 247 is provided on the inner surface of the upper case 202, abrasion of the guide plate 247 due to contact with the processing object obtained by the threshing process is suppressed . Further, the curvature collides with the upper edge of the guide plate 247, which may be caused when the guide plate 247 is mounted on the inner surface of the upper case 202, And the upper case 202 can be avoided in advance.

Therefore, the durability and the grain quality of the guide plate 247 can be improved, and the cut rice straw partially pulled in between the guide plate 247 and the upper case 202 adversely affects the threshing process It is possible to avoid the degradation of the processing ability due to the etching.

Hereinafter, the third embodiment will be described in more detail.

17 is a longitudinal side view of a threshing device mounted on a whole culm discharging type combine-harvester. As shown in this drawing, the threshing apparatus includes a lower case 201 mounted on a left half portion of a body frame (not shown), and an upper case 202 connected to the lower case 201 so as to be openable and closable Thereby forming a processing space.

As shown in Figs. 17 and 18, the processing space is provided with a threshing section 203 for performing a threshing process on the end side of the cut grain bands, a sorting section 204 for performing a sorting process on the processed material obtained by the threshing process, And a recovery unit 205 for recovering the curled paper or the like obtained by the sorting process.

The threshing section 203 is provided with a fitting supporting and conveying mechanism 206 disposed at the left side portion thereof, a water network 207 detachably attached to the upper side of the lower case 201, and a support shaft 208 in the front- And a swing 209 provided in the upper case 202 so as to enable rotation in the left direction when viewed from one side.

The interfitting support transport mechanism 206 includes a feed chain 210 constituted by an endless rotary chain provided with a projection provided in the lower case 201, a rail base 211 provided on the upper case 202, a rail base 211, And a plurality of urging springs 213 for lowering and urging the fitting rail 212 toward the feed chain 210. The presser spring 213 is supported by the presser bar 210 and the presser bar 210,

The feed supporting and conveying mechanism 206 rotates the feed chain 210 by the power from an engine (not shown) so that the lower side of the cut grain bobbins conveyed by the not-yet- And is sandwiched between the feed chain 210 and the fitting support rail 212 to be conveyed backward. By this supporting support conveying, the end edge of the cut grain bands is guided by a threshing hole (not shown) formed between the lower lip plate 201A of the lower case 201 and the upper lip plate 214 of the upper case 202 215 to between the water supply network 207 and the ram 209.

The water column 207 is a lattice-shaped concave water network formed in an arc shape curving along the outer periphery of the ramp 209 and capable of being divided into two in the circumferential direction of the ramp 209, Respectively.

The tilt 209 is provided on the support shaft 208 in the front and rear direction with a first feeding portion 216 on the front side which forms most of the tilt 209 and a second feeding portion 216 on the rear side which forms the rear end portion of the tilt 209, And a feed-back portion 217 that is relatively rotatable. The tilt 209 causes the respective feeding portions 216 and 217 to be rotationally driven in the leftward direction when viewed from the back with the support shaft 208 as a fulcrum by the power from the engine, And carries out a threshing process on the end of the cut grain bundle supplied between the nip portion 207 and the nip portion 209 by the fit support conveyance.

The first feeding portion 216 is constituted by a swing main body 218 formed in a drum shape and a plurality of swash plates 219 and 220 protruding from the peripheral wall of the swing main body 218. The second feeding portion 217 is constituted by a swing main body 221 formed in a drum shape and a plurality of swatches 220 protruding from the peripheral wall of the swing main body 221. The trailing edge 19 provided at the front end portion of the first feeding portion 216 among the traces 219 and 220 is a juxtaposition. The portion other than the front end portion of the first feeding portion 216 and the feeding portion 220 protruding from the second feeding portion 217 are juxtaposed.

The first feeding portion 216 is rotated by the power transmitted from the engine via the belt tension type first transmission mechanism 222 or the like to the second feeding portion 217 And is rotationally driven in a leftward direction when viewed from the back side at a speed. The second feeding section 217 is rotated by the power transmitted from the engine via the belt tension type second transmission mechanism 223 or the like by a rotation speed higher than that of the first feeding section 216 with the support shaft 208 as a fulcrum And is rotationally driven in a leftward direction when viewed from the back side at a speed.

As described above, by rotating and driving the first feeding section 216 at a relatively slow rotational speed, it is possible to suppress the occurrence of cut straw, straw, and the like caused by the threshing process in the first feeding section 216. As a result, it is possible to prevent the rounding of the grains by the threshing process from being impeded by the cut straw or the straw straw crumbs generated on the upstream side of the threshing process region, and to prevent the increase of the straw straw crumbs etc. contained in the treated product after the threshing process have. As a result, it is possible to improve the screening efficiency and the screening accuracy in the screening process after the threshing process and promoting the monolithic granulation by the threshing process.

Further, by driving the second feeding portion 217 to rotate at a relatively high rotational speed, a more effective threshing process can be performed at the end of the cutting grain bands at the trailing end side of the bending area, Can be solved more effectively. As a result, it is possible to effectively suppress the residual of the threshing, and to effectively prevent the grains obtained by the threshing process from being taken into the ground by the sorted grains so as to be discharged to the outside of the apparatus together with the grain bins after the threshing process. As a result, it is possible to prevent deterioration of the recovery efficiency of the curled grains due to the burrs.

The processed material obtained by the above-described threshing process of the twisting 209 leaks from the water channel 207 toward the sorting section 204 and the processed material that has not leaked from the water channel 207 is formed in the rear of the water channel 207 And is discharged to the sorting unit 204 from the ring gear 224.

The sorting section 204 includes a shaking motion separating mechanism 225 for performing a shaking process on the processed material from the threshing section 203, a main tuyere 226 for performing wind separation processing on the processed material from the threshing section 203, The diffusive copper 229 acting on the first sub tuyere 227, the second sub tuyume 228, the processed water from the tuyere 224, and the straw straw scraps blown up by the wind power sorting process A discharge fan 230 for sucking and discharging it to the outside of the car, and the like.

The shaking motion separating mechanism 225 is provided with a frame-shaped sheave case 231 formed in a rectangular shape in a plan view and on the upper side of the sheave case 231, a rough first screening fan 232, A second grain pan 233 for sorting, a rough sheath 234 for rough selection, a first straw rack 235 for rough selection, and a second straw rack 236 for rough selection are disposed. A grain sheave 237 for precise sorting is disposed at the bottom of the sheave case 231. The rear portion of the sheave case 231 is equipped with an eccentric cam type driving portion 238 for swinging the sheave case 231 by the power from the engine.

The shaking motion separating mechanism 225 is swing-driven by the power from the engine so as to carry out screening processing on the processed material from the threshing section 203. By this screening processing, And is fed toward the delivery port 239 formed at the rear end of the threshing device.

The main tuyere 226 is provided at the front lower portion of the lower case 201 so as to be able to rotate around the axis in the left and right direction, and is configured to be capable of adjusting the air volume according to the sorting throughput. The main tuyere 226 is rotationally driven with the central axis in the left and right direction as a fulcrum by the power from the engine so that the main tuyere 226 flows from the front lower side of the grain sheave 237 toward the discharge fan 230 and the discharge port 239 And the selected wind generates light of a specific gravity contained in the processed product that is precisely selected by the grain sheave 237 toward the evacuation pan 230 or the delivery port 239 Wind power is returned.

The first sub tuyere 227 is equipped at the front end of the lower case 201 so as to be rotatable about the axis in the lateral direction. The first sub-tuyere 227 is rotationally driven by the power from the engine as a fulcrum in the left and right direction so as to be rotated from the first grain pan 232 to the chief sheave 234 by the power of the power- The selected wind which flows toward the chaff sheave 234 is discharged to the discharge fan 230 or the discharge fan 230. The discharge fan 234 is provided with a discharge port for discharging the discharged raw straw, And winds it toward the delivery port 239.

The second sub tuyere 228 is equipped at the rear lower portion of the lower case 201 so as to be able to rotate around the axis in the lateral direction. The second sub tuyeres 228 are rotationally driven by the power from the engine with the central axis in the left and right direction as a fulcrum point so that the second sub tuyeres 228 are driven to rotate in the forward and backward directions through the first straw rack 235 and the second straw rack 236, Or the discharge port 239. By this sorting air, the specific gravity contained in the processed products screened by the first straw rack 235 and the second straw rack 236 is light And feeds the cut rice straw or rice straw crumbs or the like toward the evacuation fan 230 or the evacuation port 239 by wind.

The diffusion copper 229 is provided at an upper rear portion of the upper case 202 so as to be able to rotate around the axis in the lateral direction. The diffusive copper 229 is rotationally driven by the power from the engine with the axial center in the left and right direction as a fulcrum to thereby unwind the processed material conveyed from the second grain pan 233 toward the first straw rack 235, Thereby facilitating the dropping of the unstripped grains or fine grained grains contained in the processed product from the first straw rack 235 and the second straw rack 236 or the like.

The dust-discharge fan 230 is equipped at the rear upper portion of the upper case 202 so as to be able to rotate around the axis in the lateral direction. The dust-discharge fan 230 is rotationally driven by the power from the engine as a fulcrum in the left and right direction, thereby attracting dust such as straw straw debris conveyed wind by the selective air, .

Thereby, in the sorting section 204, the processed grain from the threshing section 203 is separated into the monolithic grains as a first grain which leaks from the grain sheave 237 and the grain 2, which is supplied to the rear of the grain sheave 237, It is possible to precisely sort the mixed material containing mixed fine grain or cropped rice straw as a raw material and the cut rice straw or rice straw crumb as the third material discharged from the discharge port 239 to the outside of the airframe.

The recovery unit 205 is provided with a No. 1 recovery unit 240 formed below the grain sheave 237 to recover the unirritten curled grains leaking from the grain sheave 237 and a No. 1 recovering unit 240 provided below the grain sheave 237 And a No. 2 recovery section 241 formed behind the grain sheave 237 so as to collect the mixed material. A No. 1 screw (not shown) is provided at the bottom of the No. 1 collecting part 240 to rotate around the axis in the left and right direction by the power from the engine to convey the recovered unrefined curl to the No. 1 collecting part 240 242 are disposed. A second screw 243 is provided at the bottom of the No. 2 recovery unit 241 to rotate the mixed material collected in the No. 2 recovery unit 241 toward the right by being rotationally driven around the axis in the lateral direction by the power from the engine. .

A lifting conveyor 244 (not shown) is provided at the right end of the No. 1 screw 242 for lifting the monolithic curled-up conveyed by the No. 1 screw 242 in interlocking with the No. 1 screw 242 to feed the un- ). The right side end of the second screw 243 is provided with a treatment copper 245 for performing a threshing process on the mixed material conveyed by the second screw 243 by interlocking with the second screw 243 And a No. 2 reduction screw 246 for reducing the mixed material after the threshing treatment by the No. 2 treatment copper 245 to the sorting unit 204 are connected to each other.

As shown in Figs. 17 to 20, the upper lip plate 214 is provided with a loop 209 which is moved from the upper portion of the raking 209 toward the lower side of the raked grain bands by the rotation 209 And a guide plate 247 guiding the guide plate 247 toward the guide plate 247.

Thereby, it is possible to prevent the curl obtained by the threshing process from becoming a crushed curle which is introduced into the base side of the removed grain bundle conveyed by the sandwich supporting and conveying mechanism 206, and discharged to the outside of the gas together with the scraped grain bed after the toning treatment .

The guide plate 247 is provided at the upper position with respect to the cut grain bundle sandwiched and supported by the sandwich supporting and conveying mechanism 206. The guide plates 247 are disposed at the upper positions of the two plate bodies 248 and 249 ). The two plate bodies 248 and 249 are made of resin and arranged so as to abut each other such that the rear end edge 248A of the plate body 248 on the front side and the front end edge 249A of the plate body 249 on the rear side are in contact with each other.

As a result, as the rotation of the flywheel 209, a curl falling down from the upper portion of the flywheel 209 toward the lower end of the cuticle grain leaks from between the two plate bodies 248, 249 toward the lower side of the cut grain bands The risk of falling can be prevented. As a result, it is possible to prevent the occurrence of crushed grains due to the leakage, and it is possible to prevent the graze from being discharged to the outside of the gas together with the raked grains after the grazing treatment.

In addition, it is possible to prevent the bottom side of the cut grain bundle conveyed by the fit-in support conveying mechanism 206 from being drawn between the two plate bodies 248, 249. As a result, it is possible to effectively prevent the conveying clogging of the cut grain bands due to the inflow and the disturbance of the conveying posture (the threshing posture) of the cut grain bins, thereby preventing the conveying clogging and the deterioration of the threshing performance due to the disturbance of the conveying posture .

Further, in the case where the guide plate 247 is deformed or defective, it is possible to cope with replacement by replacing only the plate members 248 and 249 where the deformation, deficiency, or the like occurred, without replacing the entire guide plate 247.

Each of the plates 248 and 249 is bolted to the outer surface of the upper lip plate 214 together with the pressing plate 250 so that the upper ends thereof are sandwiched between the upper lip plate 214 and the pressing plate 250 have.

As compared with the case where the plate bodies 248 and 249 are mounted on the inner surface of the upper lip plate 214, the wear of the plate bodies 248 and 249 caused by the contact with the processed product obtained by the threshing treatment . As a result, the durability of each of the plates 248, 249 can be improved.

249 and the upper edge portion of the pressing plate 250 which may be caused by mounting the plate bodies 248 and 249 on the inner surface of the upper lip plate 214, So that it is possible to avoid the damage of the curled grains and the partial introduction of the cut rice straw between the plate bodies 248, 249 and the upper lip plate 214 or the like. As a result, it is possible to improve the quality of the grain quality, and the cut rice straw partially pulled in between the plate bodies 248, 249 and the upper lip plate 214 adversely affects the threshing process, Can be avoided.

Each of the plate bodies 248 and 249 has a lower end positioned below the lower edge of the upper lip plate 214 in the state of being mounted on the upper lip plate 214, (Juxtaposition) 220 of each of the pair of teeth is drawn inward of the rotation locus drawn. A plurality of concave portions 248B and 249B are formed in the lower end portions of the plate bodies 248 and 249, respectively, to allow passage of a predetermined water level 220.

As a result, it is possible to prevent the breakage caused by interference between the plate bodies 248 and 249 and the predetermined traces 220 and to prevent the curved grains flowing down to the base side of the cut grain bands with the rotation of the tumbler 209, To the swing 209 more reliably. As a result, it is possible to more reliably prevent a concern that the grains obtained by the threshing treatment become crushed grains and are discharged to the outside of the gas together with the grains after the threshing treatment.

The front end portion of the front side plate member 248 is formed with a grain guide portion 248C which is positioned above the front side and guides the cut waste grain band conveyed downward by the sandwiching and conveying mechanism 206 downward .

Thereby, when the cut grain bundle sandwiched and conveyed by the sandwich support conveying mechanism 206 is conveyed to the front side plate member 248, by the action of the grain bed guide 248C, And smoothly guided to the lower side of the plate body 248 on the front side without being caught by the plate body 248. As a result, it is possible to avoid the conveying clogging of the cut grain bands caused by the hitch, and the deterioration of the threshing performance due to the disturbance of the conveying posture (hitting posture) of the cut grain bough.

The front plate member 248 is arranged so that its front end is located on the rear side of the front end of the sliding member 209. The rear plate member 249 is arranged so that the rear end thereof is located on the rear side of the rear end of the rake 209.

Thus, when the front plate member 248 is disposed such that the front end thereof is positioned at the same front and rear positions as the front end of the ramp 209, or when the front end thereof is positioned further forward than the front end of the ramp 209 Compared with the case of disposing the sheet 209 in the skew processing area of the skew 209 by the interfitting support transport mechanism 206 by the contact with the sheet body 248 on the front side, So that it is possible to suppress the possibility of being difficult to supply in the region.

Since the amount of curl obtained by the threshing process is small and the amount of the curled material flowing down to the base side of the cut grain bands is small in accordance with the rotation of the swing 209, the front side plate 248, Even if the front end portion is disposed so as to be located on the rear side of the front end portion of the tilting 209, the possibility that the curling obtained by the threshing process becomes crushed is low. In addition, even if streaks are formed on the front end side, it is possible to loosen the stuck grains from the bottom side of the streaks by the threshing process of the sweeping portion occupying most of the portions other than the front end side of the sweep 209.

In addition, by increasing the rotational speed of the second feeding portion 217, the curled material that is easy to pivot together with the second feeding portion 217 can be reliably guided toward the pulley 209 by the plate body 249 on the rear side have. As a result, it is possible to effectively prevent the grains obtained at the end portion of the threshing process region from becoming burrs and discharged together with the removed grain bins after the threshing process to the outside of the gas.

17 and 21 to 27, the swing main body 218 of the first swing portion 216 has a first cylindrical portion 251 in the shape of a truncated cone, A circular front wall 253 connected to the rear end of the first tubular portion 251 and a second tubular portion 252 connected to the rear end of the second tubular portion 252 connected to the rear end of the first tubular portion 251, A circular rear wall 254 to be connected thereto, and the like.

The second tubular portion 252 is a sheet metal obtained by bending a piece of sheet metal in a cylindrical shape and joining both end portions 252A and 252B in the circumferential direction thereof in the radial direction.

At the front end portion of the second tubular portion 252, a ring-shaped first reinforcing rib 255 protruding outward is provided. A ring-shaped second reinforcing rib 256 and a third reinforcing rib 257 are provided on the front and rear intermediate portions of the second tubular portion 252 so as to protrude outward. At the rear end of the second tubular portion 252, a ring-shaped fourth reinforcing rib 258 projecting outward is provided. Each of the reinforcing ribs 255 to 258 is constituted by four ridges 252C to 252F obtained by press-working a sheet material used for the second tubular portion 252. [

The first feeding portion 216 is provided with a pair of front and rear check ports 259 and 260 and a single cover 261 for closing the check ports 259 and 260 so as to open and close. Each of the inspection ports 259 and 260 has a second reinforcing rib 256 and a third reinforcing rib 257 between the first reinforcing rib 255 and the fourth reinforcing rib 258 of the second tubular portion 252 And the front and rear openings 252G and 252H having large opening areas formed so as to be arranged close to each other along the support shaft 208 in the front and rear direction. A plurality of through holes 252K for bolt connection are formed around the peripheries of the openings 252G and 252H of the second tubular portion 252 (including between the openings 252G and 252H) The rear nut 262 is welded.

The lid body 261 is recessed so as to insert a pair of front and rear lid portions 261A and 261B closing the front and rear inspection ports 259 and 260 inwardly in the front and rear inspection ports 259 and 260, And curved at the same curvature as that of the second tubular portion 252 so as to be a part of the peripheral wall of the feeding portion 216. The front and rear lid portions 261A and 261B are provided with a plurality of protruding teeth (juxtaposition) 220 protruding therefrom.

A frame-shaped connection portion (not shown) which is bolted to the second cylindrical portion 252 is provided at the periphery of each of the lid portions 261A and 261B of the lid body 261 (including between the lid portions 261A and 261B) 261C. The inner surface of the connecting portion 261C is curved so as to be joined to the outer peripheral surface of the second tubular portion 252. [ The connecting portion 261C is formed with a plurality of through holes 261D for bolt connection.

With this configuration, by using the through holes 252K of the second cylindrical portion 252, the respective rear nuts 262, and the respective through holes 261D of the cover body 261, the cover body 261 The lid portions 261A and 261B of the lid body 261 are inserted into the respective inspecting holes 259 and 260 of the first feeding portion 216 by being bolted to the second cylindrical portion 252 The respective check ports 259 and 260 of the first feeding portion 216 can be closed by the cover body 261. [ Further, by releasing the bolt connection, the lid body 261 can be removed from the second cylindrical portion 252 and each of the inspection ports 259, 260 of the first feeding portion 216 can be opened.

The lid body 261 is detached from the second cylindrical portion 252 and the lid body 261 which is required to be carried from the back side of the lid body 261 is opened by opening each of the inspection holes 259, It is possible to easily carry out the replacement of each of the treads 220 provided in the first feeding portion 216 by the operation from the back side and also to the first feeding portion 216 which needs to be performed from the inside of the first feeding portion 216 It is possible to easily carry out the replacement of each of the treads 219 and 220 by inserting a hand from the front and rear check ports 259 and 260 toward the inside thereof.

The connecting portion 261C of the cover body 261 is formed such that the minimum length L1 of the downstream connecting portion 261Ca located on the downstream side in the tilting rotational direction is smaller than the minimum length L1 in the upstream rotational direction Is longer than the length (L2) of the upstream-side connecting portion (261Cb) in the urging-and-rotating direction. The length D1 from the end edge on the downstream side in the direction of rotation in the downstream side connecting portion 261Ca to the respective through hole 261D in the downstream side connecting portion 261Ca is larger than the length D1 Is longer than the length D2 from the end edge of the portion 261Cb on the upstream side in the tilted rotation direction to each of the through holes 261D of the upstream side connecting portion 261Cb.

That is, since it is bonded to the outer peripheral surface of the second tubular portion 252 and is located on the downstream side in the tilted rotation direction, the contact resistance of the crushed stump band, The downstream side connecting portion 261Ca of the body 261 is formed such that the length D1 from the end edge on the downstream side in the direction of the rotation of rotation to the respective through holes 261D is maximized, The time required until the abrasion due to contact with the treated product reaches the respective through holes 261D of the downstream-side connecting portion 261Ca is maximized. This makes it possible to reduce the replacement frequency of the lid body 261 by the wear of the downstream-side connecting portion 261Ca.

The front and rear openings 252G and 252H are formed in the vicinity of the overlapping portions of the both end portions 252A and 252B of the second tubular portion 252 in the second tubular portion 252. [ The second reinforcing rib 256 and the third reinforcing rib 257 are sandwiched between the first reinforcing rib 255 and the fourth reinforcing rib 258 of the second tubular portion 252, Respectively.

As a result, the front and rear openings 252G and 252H serving as the inspection ports 259 and 260 of the first feeding portion 216 are formed to have a large opening area in which a hand or a tool can be easily inserted, The reinforcing effect obtained by the overlapping of the both end portions 252A and 252B of the first tubular portion 252 and the reinforcing effect of each of the reinforcing ribs 255 to 258 can effectively reduce the strength in the second tubular portion 252 .

The cover body 261 is provided with the second reinforcing rib 256 and the third reinforcing rib 257 of the second tubular portion 252 at the time of closing the check ports 259 and 260 of the first feeding portion 216 Four ridges 261E to 261H are formed to be inserted in the outer side. As described above, in the lid body 261, the front and rear lid portions 261A and 261B are formed concavely.

That is, the lid body 261 is effectively reinforced by the reinforcing effect obtained by forming the front and rear lid portions 261A and 261B concave and by the reinforcing effect obtained by forming the four ridges 261E to 261H.

As a result, in the state in which each of the inspection ports 259, 260 of the first feeding portion 216 is closed by the lid body 261, the reinforcing effect of the second tubular portion 252 described above, A high strength can be secured as the first feeding portion 216 by the synergistic effect with the reinforcing effect of the first feeding portion 261. [

20, a counterweight 63 for stabilizing the rotational balance of the first feeding portion 216 is provided on the inner surface of the second tubular portion 252 of the first feeding portion 216 Equipped. Thus, regardless of the overlapping portions of the both end portions 252A and 252B of the second cylindrical portion 252 and the presence of the lid body 261 before and after the first feeding portion 216, It can be rotated and driven in a good state.

Further, the first feeding portion 216 may be formed with a single checking port having a large opening area or three or more checking ports. In addition, a plurality of lid bodies for individually closing the check ports may be provided.

As shown in Fig. 17, in the oscillation selecting mechanism 225, the charge sheave 234 is configured to be adjustable in opening degree. Above the charge sheave 234, there is disposed a throughput sensor 264 for detecting the layer thickness of the processed material deposited on the charge sheave 234 as the sort throughput.

The operation of the electric motor provided for controlling the opening degree of the charge sheave 234 is controlled by the control operation of the control device based on the detection of the throughput sensor 264, The degree of opening is increased when the sorting throughput is large and is small when the sorting throughput is small.

17, 28 and 29, the first straw rack 235 and the second straw rack 236 of the rocking and sorting mechanism 225 are fixed to the sheave case 231 in the left-right direction And a plurality of toothed rack plates 235b and 236B cantilevered to the support members 235A and 236A so as to be spaced apart from each other in the left and right direction by the support members 235A and 236A. In addition, the first straw rack 235 and the second straw rack 236 are equipped with a rear upward inclined posture, which is located on the downstream side in the downstream side of the processing water conveying direction and located higher in the rear side. The first straw rack 235 and the second straw rack 236 are arranged such that the front end portion of the second straw rack 236 is located below the rear end portion of the first straw rack 235, Between the rear end portion and the front end portion of the second straw rack 236 is set so as to have a gap that is a predetermined distance in the vertical direction. The gaps between the main tuyere 226 and the second sub tuyere 228 pass through the gap.

As a result, when the processed material flows down from the rear end of the first straw rack 235 toward the front end of the second straw rack 236, the flow of air from the main tuyeres 226 and the second sub tuyeres 228 It is possible to carry wind-cut straw straw, rice straw crumbs and the like, which are light in weight and contained in the processed product, toward the delivery port 239. As a result, the content of the cut straw, straw, and the like in the processed product screened by the second straw rack 236 is lowered, and the curl tends to leak from the second straw rack 236, It is possible to more efficiently perform the screening of the curled material from the processed product in the straw rack 236.

17 and 28 to 30, an opening / closing plate 265 for changing the opening degree of the delivery port 239 is provided below the discharge fan 230. As shown in Fig. A rear end portion of the sheave case 231 is equipped with a regulating plate 266 for restricting the flow of the processed material conveyed from the second straw rack 236 or the like to the delivery port 239.

As shown in Figs. 28 and 29, the opening / closing plate 265 is swingable about the rotary shaft 267 as a fulcrum on a rotary shaft 267 in the left and right direction supported so as to be relatively rotatable with the lower case 201 It is connected. A plurality of piano lines 268 curved in a C-shape are disposed in a loose end portion of the open / close board 265 at predetermined intervals in the left-right direction. The rotation shaft 267 is bent so that its left end is directed downward, and a weight 269 is screwed to the left end of the rotation shaft 267 so as to be adjustable in position. When the weight 269 is vertically lowered, the opening / closing plate 265 has an opening angle (for example, 25 degrees) at a predetermined angle with respect to the vertical posture of the opening / closing plate 265, Posture.

The opening / closing plate 265 is made of resin and its weight is set to 180 g or less. The opening and closing plate 265 is configured to be light in weight so that the opening and closing plate 265 can swing about the rotating shaft 267 as a fulcrum depending on the air flow amount from the main tug 226 and the second sub tug 228, And the opening degree of the delivery port 239 is changed.

More specifically, the opening / closing plate 265 is swingingly displaced to the vicinity of the discharge fan 230 to open the discharge port 239 in a state where the air flow rate of the main tuyere 226 is maximized. When the air flow rate of the main tuyere 226 is gradually lowered from this state, the opening / closing plate 265 gradually descends and fluctuates in accordance with this, and the opening degree of the delivery port 239 gradually decreases. When the air flow rate becomes zero, the opening / closing plate 265 assumes the above-described reference attitude, and the opening degree of the delivery port 239 is minimized.

The processed water conveyed toward the discharge port 239 by the selective air flow from the main tug 226 or the second sub tug 228 is dispersed when it comes into contact with the opening / closing plate 265, The grains with a large specific gravity flow down toward the shaking motion separating mechanism 225 and the cut straw or straw straw crumbs with a small specific gravity are flowed through the sweeping selector mechanism 225 and the opening and closing plate 265, To the outside of the gas.

As a result, the generation of the third loss, which is discharged from the discharge port 239 to the outside of the gas, can be effectively suppressed together with the rice straw or the rice straw scrap with the cut-off of the grain.

In addition, when a large amount of sorting processing is performed and a large amount of cropped rice straw or rice straw crumbs scatter in the sorting region, the opening angle of the opening / closing plate 265 is increased by the amount of tidal air flow accompanying the increase in sorting throughput, Since the discharge port 239 is largely opened, the cut rice straw, rice straw crumbs and the like can be quickly discharged from the discharge port 239 to the outside of the base.

As a result, a large amount of cut straw, rice straw scraps, and the like are scattered toward the shaking motion separating mechanism 225, thereby preventing deterioration of the sorting accuracy.

30, the regulating plate 266 has a connecting portion 266A bolted to the rear end portion of the sheave case 231 and an inclined portion 266b inclined to the rear from the upper end of the connecting portion 266A, As shown in Fig. By bending the upper and lower ends of the regulating plate 266 toward the rear, the strength in the left and right directions in the longitudinal direction is secured. The connection portion 266A is formed with a plurality of connection holes 266C in three stages in the vertical direction so as to allow adjustment of the extending length of the regulating plate 266 from the sheave case 231 upward.

The regulating plate 266 is formed to have the inclined portion 266b so that the regulating plate 266 is mounted on the sheave case 231 so that the extending length from the sheave case 231 to the upper side becomes longer This regulating plate 266 is less likely to become resistant when discharging rice straw, rice straw debris, and the like cut by the selective wind from the delivery port 239.

This makes it possible to mount the regulating plate 266 on the sheave case 231 so that the extension length of the regulating plate 266 from the sheave case 231 to the upper side becomes longer. In the regulating plate 266, It is possible to secure a large area for receiving the large grain, and it is possible to effectively suppress the occurrence of the third loss, which is discharged from the delivery port 239 to the outside of the gas, together with the rice straw or the rice straw scrap with the grain cut.

A plurality of slits 266D are formed in the inclined portion 266b of the regulating plate 266 at predetermined intervals in the left and right direction to inhibit the passage of the curled grains and allow passage of the rice straw scraps.

This makes it possible to suppress the occurrence of the third loss, in which the curled grains are discharged from the discharge port 239 to the outside of the base, while promoting the discharge from the discharge port 239 such as the straw straw debris.

Three bolts 270 for mounting a regulating plate are welded to the rear end of the sheave case 231 so as to extend rearward and a butterfly nut 271 for fitting a regulating plate is screwed to these bolts 270 .

That is, by releasing the connection by the butterfly nut 271, the regulating plate 266 can adjust the extension length from the sheave case 231 upward in three steps. This makes it possible to easily adjust the extension length of the regulating plate 266 upward from the sheave case 231 in accordance with the amount of graininess and the kind of the curled grains. In addition, replacement of the regulating plate 266 according to the type of the curled-glass can be easily performed.

The connection holes 266C may be elongated holes extending in the vertical direction so that the regulation length of the regulating plate 266 upward from the sheave case 231 can be adjusted steplessly. In the present embodiment, the configuration in which the opening / closing plate 265 and the regulating plate 266 are used in combination is exemplified, but either one of them may be used.

17 and Fig. 31, a guide lever 272 for receiving the post-thawing processed grain bins (rice straw discharge) is provided on the rear side of the fitting supporting and conveying mechanism 206, And a straw discharge and conveyance device 273 for conveying the discharge toward a rearward rice straw discharge processing part (not shown).

The rice straw discharge and conveyance device 273 is equipped in the lower case 201 so as to be able to swing up and down using a support shaft 274 on the lateral side provided on the rear side thereof as a fulcrum. The upper case 202 is provided with a stopper 275 for preventing the vertical movement of the rice straw discharge and conveyance device 273 when the upper case 202 is switched to the closed posture.

As a result, when the discharge of the rice straw is blocked between the guide lever 272 and the straw discharge and conveyance device 273, the upper case 202 is switched to the open posture, and at the same time, The transfer device 273 swings about the support shaft 274 as a fulcrum. As a result, clogged straw discharge between the guide lever 272 and the straw discharge conveying device 273 can be easily removed.

Reference numeral 276 in Fig. 31 denotes a fixed guide provided in the lower case 201. Reference numeral 277 in Fig. 31 denotes a guide rail provided in the straw discharge and conveyance device 273. By these guide actions, Rocking is performed stably with the support shaft 274 of the straw discharge and conveyance device 273 as a fulcrum.

Although the illustration is omitted, the operation of the electric transmission mechanism for changing the rotational drive speed of the main tug 226 by the control operation of the control device based on the detection of the throughput sensor 264 So that the selected air volume increases when the sorting throughput is large and the selected air volume decreases when the sorting throughput is small.

Further, it is also possible to arrange to adjust the selected air volume from the main tuyere 226 by artificial operation. It is also possible to adjust the flow rate of air from the main tuyere 226 not by changing the rotational drive speed of the main tuyere 226 but by adjusting the opening degree of the opening formed in the cover covering the main tuyere 226 good.

[Another embodiment of the third embodiment]

[1] The threshing device is not limited to a combine-harvester, but may be mounted on a harvester. Further, the first sub tuyere 227 and the second sub tuyere 228 may not be provided.

[2] The guide plate 247 may be configured by arranging three or more plates 248 and 249 along the conveying direction of the sorted grain bands.

[3] As shown in Fig. 32, the plate bodies 248 and 249 constituting the guide plate 247 may not be provided with a plurality of concave portions 248B and 249B.

[4] As shown in Fig. 33, each of the plate bodies 248 and 249 constituting the guide plate 247 is made of an elastically deformable resin such as a rubber plate, and a plurality of concave portions 248B and 249B The slits 248D and 249D may be formed. According to this configuration, it is possible to prevent the flow of the curl from the concave portions 248B and 249B to the base side of the sorted grain bands, which may occur when a plurality of concave portions 248B and 249B are formed in the respective plate bodies 248 and 249 It is possible to stop the descent.

[5] Each of the plate bodies 248 and 249 constituting the guide plate 247 may be made of a sheet metal, or may be formed by applying a resin coating to a canvas or the like.

[6] As shown in Fig. 34, each of the plate members 248 and 249 constituting the guide plate 247 includes the rear end edge 248A of the plate member 248 on the front side and the plate member 249 on the rear side, The front edge 249A may be formed so as to have a slanting edge located at the lower end of the front edge 249A. With this configuration, it is possible to more reliably prevent the bottom side of the cut grain bundle conveyed by the fit-in support conveying mechanism 206 from being introduced between the front and rear adjacent plates 248 and 249, It is possible to effectively suppress the conveying clogging of the cut grain bands and the disturbance of the conveying posture (the threshing posture) of the cut grain blanket, thereby effectively preventing the conveying clogging and the deterioration of the threshing performance due to the disturbance of the conveying posture.

[7] The guide plate 247 may be mounted on the inner surface of the upper lip plate 214 (upper case 202).

1: gas
10: Threshing section
11: Threshing feed chain
12: Classroom
14: Rapid
20: Rice straw discharge conveying device
21: Unsteady rotating chain
22: Return guide lever
30:
31: Floating sorting device
40:
50: Rice straw discharge processing device

Claims (1)

A straw straw discharge and conveyance device 20 for conveying and discharging the threshing straw discharge from the feeder 12 in the backward direction of the gas by the endless rotary chain 21 and the conveyance guide lever 22, And a deviation control member (60) for opening and closing a wind power distribution path (B) for discharging the wind power distribution path (B)
A mechanical interlocking mechanism (not shown) for transmitting the displacement in the direction of changing the fitting interval of the conveying guide lever 22 with respect to the endless rotary chain 21 as a displacement required for switching the opening / closing posture of the above- 70) is provided on the side of the threshing feed chain (11).

Images