KR101368559B1 - Threshing cylinder - Google Patents

Abstract

The present invention provides a threshing apparatus that enables proper automatic opening / closing of the dust emission control body to be performed by a small-scale operation mechanism, and can also easily and quickly perform maintenance work while easily avoiding occurrence of malfunction of the operation mechanism. do. For this purpose, a mechanical linkage for transmitting the displacement in the direction of changing the insertion support interval of the endless rotation chain 21 of the conveyance guide lever 22 as a displacement necessary for switching the opening and closing attitude of the dustproof control body 60. The mechanism 70 is provided on the threshing feed chain 11 side. When the space | interval of the conveyance guide lever 22 and the endless rotation chain 21 is spaced apart, the dust control body 60 is switched to the open posture side, and the relative spacing between the conveyance guide lever 22 and the endless rotation chain 21 is carried out. When this narrows, it is comprised so that the dust-control control body 60 may be switched to the closed posture side.

Description

Threshing barrel {THRESHING CYLINDER}

The present invention provides a rice straw discharge conveying apparatus for sandwiching and conveying the threshing rice straw discharge from the processing chamber in a gas rearward direction by an endless rotating chain and a conveying guide lever, and a dust from the sorting section. It is related with the threshing apparatus provided with the dust control body which opens and closes the wind power dust path | route discharged | emitted to the exterior of a gas by wind.

BACKGROUND ART Conventionally, for example, a threshing device disclosed in JP 4-084825 A has been proposed. The threshing apparatus is provided with a balloon unit having a sorting device, a dust exhaust port through which the straw straw to be discharged from the chaff sheave provided by the sorting device is discharged to the outside of the gas together with the sorting wind, and installed to open and close this part at the dust exhaust port. It has a backing control panel.

The exhaust control panel is linked to a motion detection mechanism (detection switch) via a mechanical linkage mechanism, a motor and a control unit. The motion detection mechanism detects that the harvesting 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 mowing part is lowered to a predetermined mowing operation position, the dust discharge control board automatically swings in the direction of opening the dust discharge port.

In the threshing apparatus provided with the said dust emission control body, when the quantity of the process material of a sorting part is large, the quantity of the process material for discharge which arises in a sorting part increases, and the process material for discharge is discharged quickly, The dust control body is switched to the open position so that dust mixing of the second treatment becomes less likely to occur. When the amount of water to be processed in the sorting portion is small, the treated matter is easily blown off by the sorting wind, so that the dust control body is switched to the closed position so as to suppress or avoid the loss of the grain discharged with the sorting wind.

By employing the above-described prior art, it is possible to automatically open and close the dust emission control body. However, the actuator which opens and closes a dust emission control body, and the control means and detection means which operate an actuator had to be provided, and there existed a tendency for an operation mechanism to become large scale.

An object of the present invention is a threshing apparatus capable of easily and promptly opening and closing the dust emission control body with a small operation mechanism, and furthermore, it is possible to easily and quickly perform maintenance work while avoiding the occurrence of a malfunction of the operation mechanism. Is to provide.

In order to achieve the above object, the present invention provides a rice straw discharge conveying apparatus for sandwiching and conveying the threshing rice straw discharge from the processing chamber in the gas rearward direction by the endless rotating chain and the conveying guide lever, and the dust from the sorting portion to the sorting wind. It is a threshing apparatus provided with the dust emission control body which opens and closes the wind emission path | route discharged | emitted to the exterior of a gas,

The mechanical linkage mechanism which transmits the displacement in the direction which changes the clamping support gap with respect to the said endless rotation chain of the said conveyance guide lever as a displacement required for switching the opening and closing attitude of the said dust control body is provided in the threshing feed chain side. It features.

According to this characteristic structure, when the volume of the process part of a sorting part becomes large, a dust control body is automatically switched to an open position, and when the amount of the process volume of a sorting part becomes small, a dust control body is automatically switched to a closed position.

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 large work space, measures such as swinging the grain storage tank and switching to an open position are required, and there is a concern that the previous preparatory work required for maintenance work may be laborious.

In contrast, in the present invention, since the mechanical linkage mechanism is arranged on the feed chain side, maintenance work can be performed from the transverse one end of the gas in which no other device exists, and the operation of switching the grain storage tank to the open position. It is possible to perform work in a state where the working posture is not disturbed, the working space is sufficiently secured, and workability can be made good without performing the above.

As a result, regardless of the change in the amount of water in the sorting section, the dust control body is automatically switched to an open or closed position suitable for the amount of water in the sorting section. In addition, since it is made of a small-scale structure that only has the mechanical interlock mechanism, it can be obtained inexpensively.

In addition, it is easy to avoid malfunction due to dust attachment of the mechanical interlock mechanism, and it is possible to appropriately open and close the dust control body from this surface, and to maintain the maintenance work by arranging the mechanical interlock mechanism on the threshing feed chain side. This can be done easily.

In a preferable embodiment, when the space | interval of the said conveyance guide lever and the said endless rotation chain is spaced apart, the said dust control body is switched to the open posture side, and when the relative space | interval of the said conveyance guide lever and the said endless rotation chain becomes narrow, the said The conveyance guide lever and the dust emission control body are interlocked by the mechanical linkage mechanism so as to switch the dust control body to the closed posture side.

In other words, when the amount of grains (grain stalks) supplied to the feeding chamber increases, the amount of processed water supplied for sorting the sorting unit from the feeding chamber increases. At this time, the amount of threshing rice straw discharged from the feeding chamber increases. Then, the amount of threshing straw discharge conveyed by the rice straw discharge conveying apparatus increases, and the conveyance guide lever moves to the side spaced apart from an endless rotation chain.

When the amount of grain supplied to the processing chamber is small, the amount of processing material supplied for sorting treatment from the processing chamber to the sorting unit is reduced. At this time, the amount of threshing rice straw discharged from the feeding chamber is reduced. Then, the amount of threshing straw discharge conveyed by the rice straw discharge conveyance apparatus becomes small, and a conveyance guide lever moves to the side which approaches to an endless rotation chain.

Thus, if the set interval is appropriately set on the basis of the change of the distance between the conveyance guide lever and the endless rotation chain accompanying the change of the amount of threshing straw discharge in the rice straw discharge conveying apparatus, Due to the separation of the conveyance guide lever with respect to the endless rotation chain and the linkage between the conveyance guide lever and the dust control body by the mechanical linkage mechanism, the dust control body is automatically switched to the open position.

When the amount of processing of the sorting portion is small, the dust control body is automatically switched to the closed position due to the approach of the conveying guide lever to the endless rotation chain and the linkage between the conveying guide lever and the dust control body by the mechanical linkage mechanism.

Moreover, when the connection part of the said mechanical interlock mechanism is provided in the back half part in the straw discharge conveyance direction of the said conveyance guide lever, it is advantageous at the following points.

Even if the rice straw discharge in the rice straw discharge conveying apparatus is reduced, the treatment material supplied before the reduction still remains in the sorting part, and the reduction of the processed material in the sorting part causes the occurrence of the reduction of rice straw discharge in the rice straw discharge conveying device. Occurs slowly from If the connection part of a mechanical interlock mechanism is set to the front half part in the straw discharge conveyance direction of the said conveyance guide lever, even if the processed material in a sorting part remains enough, a dust control body will switch to a closed position immediately. There is a concern.

On the other hand, since the connection part of a mechanical linkage mechanism is set in the back half part in the straw discharge conveyance direction of the said conveyance guide lever, the attitude control of a dust emission control body can be switched according to the process situation in a sorting part. In spite of the fact that the dust control body must be maintained in the state of discharging dust, it is not quickly switched to the closed position.

In one suitable embodiment, the mechanical linkage mechanism includes a first linkage member linked to the conveyance guide lever and a second linkage member linked to the dust emission control body,

The first and second link members are configured to be unlinkable from each other,

In order to maintain the said dust emission control body in an open position at the time of releasing linkage, the fixing mechanism which fixably fixes the said 2nd linkage member is provided.

This configuration is advantageous in the following points.

If a part of the mechanical linkage mechanism is damaged and the linkage between the dust emission control body and the conveyance guide is broken, the attitude control of the dust emission control body cannot be performed, and the dust emission control body remains closed when a large amount of dust is to be discharged. Therefore, there is a concern that a large amount of dust is introduced into the second conveying apparatus or the like.

On the other hand, in this structure, the said reverse control member is opened by releasing the connection of the said 1st linking member and the said 2nd linking member, and fixing the said 2nd linking member so that a displacement is not displaceable. Can be maintained.

Thereby, even if there exists a failure in a mechanical interlocking mechanism, etc., the operation | work of discharge | emission of dust which is a minimum required function can be ensured.

Moreover, if the pressing means which presses the said dust control body to a closed position is provided, it is advantageous at the following points.

In other words, if there is a change in the sorted wind in the wind exhaust path, the dust control body may be switched between the closed position and the open position, but the exhaust control unit can be held in the closed position by the pressing means, so that the closed position of the dust control unit It is stable.

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

According to this invention, the threshing apparatus which can make it possible to perform appropriate automatic opening and closing of a dust control body by a small operation mechanism, and also can perform maintenance work easily and quickly, making it easy to avoid generation | occurrence | production of the malfunction of the operation mechanism. Can be provided.

1 to 5 are views showing a first embodiment of the present invention,
1 is a longitudinal side view of the threshing apparatus;
Fig. 2 is a longitudinal rear view of the threshing apparatus having a mechanical linkage mechanism for linking the conveyance guide and the exhaust emission control body.
Fig. 3A is a side view showing a state in which the exhaust control body is set to the closed position, and Fig. 3B is a side view showing a state in which the exhaust control unit is set to the closed position.
4 is a longitudinal side view showing the mounting structure of the dust emission control body.
Fig. 5 is a side view showing a state in which the dust control body is disconnected from the conveyance guide lever and the dust control body is kept open.
6 to 16 are views showing a second embodiment of the present invention.
6 is a longitudinal side view of the threshing apparatus.
Fig. 7 is a side view of the threshing arrangement of the threshing apparatus.
8 is a longitudinal rear view of the threshing arrangement of the threshing apparatus.
9 is a longitudinal side view of the threshing barrel;
10 is a transverse front view of the threshing barrel.
Fig. 11 is a plan view in a deployed state of the drum body.
12 is a plan view in the closed state of the inspection opening;
FIG. 13 is an XIII-XIII cross-sectional arrow view of FIG. 12;
Fig. 14 is a cross-sectional view taken along line XIV-XIV in Fig. 12;
15 is a plan view of a cover plate;
Figure 16 is a side view of a straw discharge 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 apparatus.
18 is a longitudinal rear view of the main part of the threshing apparatus.
19 is a side view of an essential part showing the configuration of the guide plate;
20 is a cross sectional plan view of an essential part showing a configuration of a guide plate;
21 is a longitudinal side view of the first barrel portion;
22 is a longitudinal rear view of the first barrel portion;
Fig. 23 is a plan view of an essential part showing the configuration of the second cylindrical portion and the lid body;
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.
Fig. 26 is a plan view showing an expanded shape of a second cylindrical portion.
Fig. 27 is a plan view showing the shape of a lid body;
Fig. 28 is a longitudinal sectional side view of an essential part showing the opening and closing structure of the dust exhaust port;
29 is a longitudinal sectional rear view of an essential part showing the opening and closing structure of the dust exhaust port;
30 is a longitudinal sectional rear view of an essential part showing the configuration of a regulating plate;
Fig. 31 is a schematic side view showing the structure of a straw discharge conveying device.
32 is a side view of an essential part showing another embodiment in which no recess is formed in each plate body;
Fig. 33 is a cross sectional plan view of an essential part showing another embodiment in which slits are formed in respective plate bodies.
Fig. 34 is a side view of an essential part showing another embodiment inclined at the joining edge of each plate;

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the threshing apparatus by this invention is described, referring drawings. Suitably, each embodiment is applicable to the threshing apparatus of a whole culm discharging type combine-harvester. Hereinafter, although some embodiment is described, the combination of the characteristic of one embodiment and the characteristic of another embodiment is also considered to be included in the scope of the present invention.

In the following description, unless otherwise specified, the front and rear directions are referred to based on the direction in which a work vehicle such as a combine-harvester, harvester, etc., on which the threshing apparatus according to the present invention is mounted, moves forward (forward) forward, The horizontal direction orthogonal to this front-back direction is called a left-right direction (or a horizontal direction), and the direction perpendicular | vertical to a front-back direction and a left-right direction is called an up-down 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 which concerns on this embodiment has the threshing feed chain 11 provided in the outer side (one horizontal side) of the base | substrate 1, and the supply chamber 12 provided in the front part in the base | substrate. The sorting part 30 which has the threshing part 10, the rice straw discharge conveying apparatus 20 installed in the back of the said processing chamber 12, and the oscillation sorting apparatus 31 provided below the said processing chamber 12, and , The dust collecting part 40 having the dust collecting fan 41 installed below the rice straw discharge conveying apparatus 20, and the first screw conveyor 2 and the second screw installed at the bottom of the sorting part 30. The conveyor 3 and the straw discharge processing apparatus 50 provided continuously in the back part of the said base body 1 are provided.

This threshing apparatus is equipped with a combine and performs the threshing process of the harvested harvesting grain stand harvested by the harvesting part (not shown) of the combine, the sorting process of threshing grains, and the threshing rice straw discharge.

That is, the threshing part 10 is equipped with the threshing feed chain 11 and the said processing chamber 12, and is equipped with the water net 13 provided in the lower part of the processing chamber 12, and is mowing. Threshing treatment of a grain stand is performed.

That is, the threshing feed chain 11 supplies the ear tip side of the harvesting grain stand to the feeding chamber 12, carrying and carrying the back side of the harvesting grain stand to the gas back side. The processing chamber 12 is provided with the barrel 14 provided so that rotation drive was possible about the axis center of a gas front-back direction in a chamber, and threshing process is carried out by the barrel 14 of the ear tip side of the harvested grain field. The threshing feed chain 11 carries out threshing rice straw discharge | release to the rear of the feeding chamber 12 from the rosin port 15 located in the rear end of the feeding chamber 12. As shown in FIG.

The rice straw discharge conveying apparatus 20 is located in the transverse side vicinity of the conveying end portion of the threshing feed chain 11, the conveying start side is located above the rice straw discharge inlet 51 of the rice straw discharging processing device 50. It is provided with the endless rotation chain 21 provided in the back part in a base body, and the conveyance guide lever 22 provided so that the endless rotation chain 21 may be provided below the conveyance side of this endless rotation chain 21 in the arrangement | positioning to make. It is composed.

1, 3 (a) and (b), the conveyance start end side and the conveyance end side of the conveyance guide lever 22 are connected levers in the up-and-down direction in which the upper end is connected to the conveyance guide lever 22; It is supported by the support member 24 on the base side via 23. The support member 24 on the conveyance start end side is fixed to a chain guide for guiding the threshing feed chain 11. The support member 24 on the conveyance end side is fixed to the frame 8 of the base 1. The said support member 24 of the conveyance start side and the conveyance end side supports the said connection lever 23 so that up-and-down sliding is possible. Each said connecting lever 23 is arrange | positioned between the conveyance guide lever 22 and the said support member 24, and is attached to the connecting lever 23, and is pressurized by the spring 25 covered with bellows. Thereby, the conveyance guide lever 22 is pushed so that the endless rotation chain 21 may approach with the said spring 25.

The rice straw discharge conveying apparatus 20 inherits the base of the threshing rice straw discharge | emitted discharged | emitted from the processing chamber 12 from the threshing feed chain 11 between the endless rotation chain 21 and the conveyance guide lever 22, and is thus The endless rotating chain 21 and the conveyance guide in the horizontal installation posture in which the threshing straw discharge which was inherited was loaded on the support rail (not shown) which is located at the tip end side of this ear straw discharge side conveying apparatus 20 above. The lever 22 clamps and conveys in the gas rearward direction, and falls on the rice straw discharge inlet 51 of the rice straw discharge processing apparatus 50. The endless rotary chain 21 is arranged such that the distance from the threshing feed chain 11 becomes larger as the conveyance end side, and the rice straw discharge conveying apparatus 20 sends the threshing rice straw discharge to the threshing feed chain side with respect to the base 1. Conveys while moving to the other side.

When the amount of threshing rice straw discharged by the rice straw discharge conveying apparatus 20 is changed, the volume of threshing rice straw discharge | emission changes, so that the conveyance guide lever 22 may be operated by the said spring and reaction force from threshing rice straw discharge | release. Thereby moving away from, or approaching, the endless rotating chain 21. Thus, as the straw straw discharge becomes larger, the distance between the conveyance guide lever 22 and the endless rotating chain 21 becomes larger, and as the straw straw discharge becomes smaller, the distance between the conveyance guide lever 22 and the endless chain 21 increases. Becomes smaller.

The straw discharge processing device 50 includes a sedan case 52 having the straw discharge inlet 51 and a long straw discharge port 53 installed above the rear end side of the sedan case 52. Equipped with. The sedan case 52 is provided with a cover body 54 rotatably mounted to open and close the rice straw discharge inlet 51, and a cutter shaft 55 installed in the case so as to be driven and rotated around an axis in the transverse direction of the gas. ) And a feed shaft 56, and a three-piece straw discharge port 57 provided below the cutter shaft 55 and the feed shaft 56.

The straw discharge processing apparatus 50 is in a state of processing a long straw discharge when the lid 54 is closed. Then, the straw discharge processing apparatus 50 guides the threshing rice straw from the said straw discharge conveying apparatus 20 to the long rice straw discharge port 53 at the outer surface side of the cover body 54, and this long rice straw discharge port is carried out. From 53 it falls to the ground behind a base in a long straw state.

When the lid 54 is opened, the rice straw discharge processing device 50 is in a state of processing of releasing the sediment. Then, the rice straw discharge processing apparatus 50 drops the threshing rice straw discharge | emission from the said rice straw discharge conveying apparatus 20 from the said rice straw discharge inlet 51 into the inside of the sedan case 52, and the said cutter shaft 55 The disk-shaped cutting blade which is arranged in the axial center direction thereof so as to be integrally rotatable, and the disk-shaped feed blade which the feed shaft 56 is arranged in the axial center direction thereof so as to be integrally rotatable is provided. In the direction of culm), the straw discharged in the sedan state is dropped from the sesame straw discharge port 57 to the ground.

The sorting section 30 is provided with the swing sorting device 31, and is provided with a tuyere 32 provided below the front end of the swing sorting device 31 and the rear of the rotatable port 15. The processing rotary body 33 installed in the structure is provided.

The processing rotor 33 is driven to rotate around the axis in the transverse direction of the gas, and the upper straw rack provided with the swing sorting device 31 for the straw debris discharged from the rosin port 15 of the processing chamber 12. A straw rack) (34) is released and supported, and the grain is taken out of the straw crumbs.

In addition to the upper stroke rack 34, the swing sorting device 31 includes a grain pan 35 and a chaff sheave 36 positioned below the water net 13, and the chaff sheave 36. The straw rack 37 provided in the back of the () is provided, and the grain sheave 38 provided below the chaff sheave 36 is provided.

The sorting unit 30 separates the processed object from the processing rotating body 33 and the processed object drop-fed and supplied from the supply chamber 12 through the water network 13, by the shaking sorting device 31. By the balloon according to the sorting wind supplied to the dust collecting part 40 by the tuyere 32, the treated material 1, the treated material 2, and processed materials for discharge such as rice straw flakes, 1 The treatment object No. 2 and the treatment No. 2 are dropped from the swing sorting device 31, and the treatment object for discharge is sent to the dust collecting part 40.

The said 1st screw conveyor 2 carries out the 1st process object which fell from the shaking-separation apparatus 31 to the transverse outer side of the base | substrate 1, and supplies it to the grain apparatus 4. As shown in FIG. This grain-graining apparatus 4 feeds a threshing grain into the grain tank (not shown) of a combine. The 2nd screw conveyor 3 carries out the 2nd process material which fell from the shaking-separation apparatus 31 to the transverse outer side of the base 1, and supplies it to the reduction apparatus 5. As shown in FIG. This reduction apparatus 5 conveys the processed material 2 to the reduction port formed in the lateral side wall of the base | substrate 1, is sent in in a gas from this reduction port, and is reduced to the start end side of the shaking-separation apparatus 31. FIG.

The dust removal part 40 is provided with the fan back path A with the said back fan 41, and the wind power back path B provided below this fan back path A. As shown in FIG.

The said fan back path A is formed of the fan case 42 which accommodated the said back fan 41 so that the drive is possible, The fan back path A is equipped with the said back fan 41. In addition, the dust suction port 43 which consists of the suction port of the fan case 42, and the dust discharge port 44 which consists of the discharge port of the fan case 42 are provided.

The dust suction port 43 is opened to the swing sorting device 31 above the rear end of the swing sorting device 31. The dust discharge port 44 is located in the interior of the cut case 52 to open toward the cut straw discharge port 57.

Thereby, the exhaust path A with a fan sucks the processed object for discharge | emission discharged | emitted from the rear part of the sorting part 30 from the dust suction port 43 by the conveyance force of the dust removal fan 41, The dust is discharged out of the gas through the sedan case 52 from the discharge port 44. The exhaust path A with a fan sucks a part of the sorting wind from the said tuyere 32 with a processed material, and discharges it.

The wind turbine path B is formed by a portion 42a located below the dust fan 41 of the fan case 42 and a rear end of the swing sorting device 31, and the swing sorting device. It communicates with the rear end of (31). The wind power exhaust path B has a dust discharge port 45 formed by being disposed under the dust discharge port 44 of the exhaust path A with fan at the rear end of the base 1. The dust discharge port 45 opens toward the long straw discharge port 57 of the sedan case 52.

The wind power exhaust path B introduces the processed material for discharge sent out from the sorting section 30 by a transfer force by the sorting wind from the tuyere 32, and the sedan case 52 from the dust discharge port 45. Through the gas to the outside.

The said wind power exhaust path B is provided with the plate-shaped dust emission control body 60 provided in the site | part which entered a little inside the gas rather than the said dust discharge port 45. As shown in FIG. As shown in Fig. 2, the dust emission control body 60 can swing on the left and right lateral side walls 1a of the base 1 via a rotation support shaft 61 provided so as to be integrally rotatable at the upper end thereof. Is supported.

Fig. 3A is a side view of the dust control body 60 in the closed position CL. As shown in this figure, when the dust control body 60 is rocked to the lower side by the rotation operation of the rotary support shaft 61 around the gas transverse axial center of the rotary support shaft 61, it is closed. It is posture CL. Then, the dust emission control body 60 becomes an attitude | position which crossed with respect to the process flow direction of the wind turbine back path B so that the passage of the processed material of the wind turbine back path B may be suppressed.

FIG. 3B is a side view of the dust emission control body 60 in the open position OP. As shown in this figure, when the dust control body 60 is oscillated to the rising side around the gas transverse shaft center of this rotation support shaft 61 by the rotation operation of the said rotation support shaft 61, it will open. It is an attitude (OP). Then, the dust emission control body 60 becomes an attitude | position along the moving direction of the workpiece | work of the wind turbine back path B so that passage of the processed material of the wind turbine back path B may be performed.

As shown in Fig. 2, the dust emission control body 60 is a driven arm provided so as to be integrally rotatable at the end of the rotation support shaft 61 so as to be connected to the side where the threshing feed chain 11 is located. By the mechanical linkage mechanism 70 provided with 71, it is interlocked with the site | part to which the connection lever 23 of the said conveyance end side of the said conveyance guide lever 22 is connected.

2 shows the structure seen from the rear face of the mechanical linkage mechanism 70. 3 (a) and 3 (b) show the structure seen from the side of the mechanical linkage mechanism 70. As shown in these figures, the mechanical linkage mechanism 70 has a link mechanism L having the driven arm 71 and a gas transverse direction provided externally above the exhaust path A with fan. It is provided with the rotary motion shaft 72, the said connection lever 23, and the cam type | mold linkage part 80 provided over the edge part of the threshing feed chain side of this connection lever 23 and the said rotary motion shaft 72, Consists of.

As shown in FIGS. 3A and 3B, the link mechanism L includes the driven arm 71 and the cam linkage 80 of the rotary shaft 72. ) Is provided with a swinging arm (73) which is rotatably installed at an end of the opposite side to the side on which the side is provided, and the linking link (74) connecting the swinging arm (73) and the driven arm (71) is connected. It is provided. The link mechanism L is outside the fan-mounted dust path A on the threshing feed chain side and the wind power dust path B on the threshing feed chain side with respect to the fan-mounted dust path A and the dust control body 60, and the rice straw. It is located under the passage 26 of threshing rice straw discharge | emission conveyed by the discharge conveying apparatus 20. As shown in FIG.

As shown in Figs. 3A and 3B, the driven arm 71 is provided with a pressing spring 75 as a pressing means at an intermediate position in the longitudinal direction, so that the dust control body 60 is mounted. It is pressing in the closed position CL. As for the dustproof control body 60, the total value of the spring which pushes the press spring 75 and the conveyance guide 22 to the endless rotation chain 21 side is a closed position by balance with the weight of the conveyance guide 22 itself. 2 and 3 (a) and (b), the stopper 76 for receiving the dust control body 60 pressed by the pressing spring 75 may be provided. good.

The mounting structure of the dustproof control body 60 is demonstrated. As shown in Fig. 4, the rotational support shaft 61 is hypothesized over the left and right horizontal walls 1a, and the mounting plate frame 62 is fixed along the axial direction of the rotational support shaft 61, The dustproof accommodation stop plate portion 63 is fixed to the mounting plate frame 62 with a bolt to suspend and support the dustproof storage stop plate portion 63 from the mounting plate frame 62. The dustproof control body 60 is comprised from the rotation support shaft 61, the mounting plate frame 62, and the dustproof accommodation stop plate part 63. As shown in FIG.

As shown in Fig. 3 (a) and (b), the cam-type linkage portion 80 is a rocking-type driven arm 81 provided to be integrally rotatable at the end of the rotary motion shaft 72, The lower end part of the said connection lever 23 is comprised by the rolling member 82 which consists of a round bar material comprised and connected so that it may extend toward the said driven arm 81. As shown in FIG.

The driven arm 81 is provided with a cam surface 83 formed of a circumferential surface of the cam surface forming body attached thereto. The said transmission member 82 is comprised so that the extended edge part may contact the said cam surface 83. The driven arm 81 is oscillated and pushed through the link mechanism L by a pressing spring 75 serving as a pressing means for pressing the dust control body 60 in the closed position CL, whereby the cam surface ( 83 is pressed against the extended end of the transmission member 82.

When the conveying guide lever 22 moves or moves so that the conveyance guide lever 22 may be spaced apart from the endless rotation chain 21, the cam-type linkage portion 80 may be in contact with the extended end of the transmission member 82 and the driven arm 81. By interlocking the conveyance guide lever 22 and the rotary motion shaft 72 by this, the conveyance guide lever 22 and the dust emission control body 60 are interlocked as follows.

That is, as shown in Fig. 3B, the conveyance guide lever 22 moves so as to be spaced apart from the endless rotation chain 21, and the distance between the conveyance guide lever 22 and the endless rotation chain 21 is When the set interval D is reached, the dust emission control body 60 is in the open position OP, and as shown in Fig. 3A, the conveyance guide lever 22 is provided with respect to the endless rotation chain 21. When it moves so that it may approach, and the space | interval of the conveyance guide lever 22 and the endless rotation chain 21 becomes smaller than the space | interval (setting space) smaller than the setting space | interval D, the dust emission control body 60 will close the said closed position CL ) To make it work together.

Moreover, when the space | interval of the conveyance guide lever 22 and the endless rotation chain 21 becomes the space | interval exceeding the said setting space | interval D (more than a set space | interval), the endless rotation of the conveyance guide lever 22 in this case The movement with respect to the chain 21 is absorbed by the sliding contact with the cam surface 83 of the extended end of the transmission member 82, the transmission from the conveyance guide lever 22 to the dust emission control body 60 is interrupted, and dust control is controlled. The sieve 60 is held in the open position OP to interlock with each other.

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 conveyance guide lever 22 moves so that it may be spaced apart more than the said set space | interval D with respect to the endless rotation chain 21, the dust emission control body 60 will become the said opening attitude OP in connection with this, When the conveyance guide lever 22 moves so that it may be located less than the said setting | interval set space | interval D with respect to the endless rotation chain 21, the dust emission control body 60 will be the said closed position CL in conjunction with this.

When the amount of grain supplied to the processing chamber 12 increases, the amount of processing material supplied from the processing chamber 12 to the sorting unit 30 increases, so that the amount of processed materials for discharge such as rice straw flakes generated in the sorting unit 30 is large. Lose. As a result, dust mixing of the first and second processed products tends to occur. When the amount of grain supplied to the processing chamber 12 decreases, the amount of processing material supplied from the processing chamber 12 to the sorting section 30 decreases. Then, scattering of a grain by a sorting wind becomes easy to generate | occur | produce. When the amount of grain supplied to the feeding chamber 12 increases, the threshing rice straw discharged to the rice straw discharge conveying apparatus 20 increases, and the distance between the conveyance guide lever 22 and the endless rotating chain 21 increases, As the setting interval D, an interval generated when the amount of discharged water generated in the sorting section 30 increases.

As a result, when the amount of grain supplied to the feeding chamber 12 increases, the dust collecting part 40 moves apart from the set interval D with respect to the endless rotation chain 21 of the conveying guide lever 22, and mechanically. The dust control controller 60 is automatically switched to the open position OP by the interlocking mechanism 70, and the discharged object path A with the fan and the wind power dust path are removed from the sorting unit 30. (B) is discharged to the outside of the gas.

When the amount of grain supplied to the feeding chamber 12 becomes small, the dust collecting part 40 moves and located below the set interval D with respect to the endless rotation chain 21 of the conveyance guide lever 22, and mechanical linkage. By the mechanism 70, the dust control body 60 is automatically switched to the closed position CL, and the processed object for discharge from the sorting unit 30 is mainly outside the gas by the exhaust path A with a fan. To be discharged.

Next, the structure which hold | maintains the dust emission control body 60 in the open position OP is demonstrated.

As shown in Figs. 3A and 3B and Fig. 5, the swinging arm 73 associated with the conveyance guide lever 22 is used as the first linking member. On the other hand, the interlocking link 74 connected to the dust control body 60 is used as the second linking member. The swinging arm 73 and the interlocking link 74 are configured to be disengaged from each other by releasing the pin 77 connecting them.

After releasing the linkage between the swinging arm 73 and the linkage link 74, the driven arm 71 and the linkage link 74 are moved. It is swung around the rotary support shaft 61 to the straw discharge conveyance start-end side, and is switched from the posture shown by the broken line in FIG. 5 to the posture shown by the solid line, respectively. Then, the distal end of the interlocking link 74 is mounted and fixed to the lateral wall 1a (see Fig. 2) of the base 1. A mechanism for fixing the interlocking link 74 as the second linking member so as not to be displaceable, the fixing attaching bolt hole 1b for fixing and fixing the distal end portion of the interlocking link 74 to the lateral side wall 1a (of a fixing mechanism). An example) is formed. In addition, the bolt hole 1b as a fixing mechanism may be a screw hole.

[Other embodiments of the first embodiment]

Instead of the cam linkage 80 shown in the above embodiment, the extended end of the linkage member 82 and the swinging driven arm 81 may be linked via a direct connection pin or the like.

Instead of the dust control body 60 shown in the above embodiment, a dust control body composed of a rake type may be employed.

Although the connection part of the mechanical interlocking mechanism 70 is provided in the terminal position of the conveyance guide 22, the said connection part should just be provided in the back half part in the straw discharge conveyance direction of the conveyance guide lever 22. As shown in FIG.

As the pressing means, a torsion spring or the like can be used in addition to the coil spring. However, when the self-weight of the dust control body 60 can be used to set the dust control body 60 to the closed position CL, the compression spring 75 may not be provided.

[Second Embodiment]

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

In the second embodiment, the barrel 101 is provided in the plurality of inspection openings 142 and the plurality of inspection openings 142 formed in the state adjacent to the peripheral wall 131 of the barrel drum 130, respectively. One cover plate 150 having a plurality of cover parts 151 that acts to be closed separately is provided.

In threshing barrels, in general, check openings are formed in the circumferential wall of the barrel, and during the production of the barrel, the barrels are planted with threshing teeth or are worn with the use of the barrel. Use the inspection opening for the work to be replaced. For example, in the barrel described in JP 2005-253388 A, a check hole is formed in front and rear intermediate portions of the outer circumferential surface of the barrel. In this prior art, however, a problem concerning the strength of the barrel of drum, or a problem about the work through the inspection openings is likely to occur. That is, when openings for work such as assembly or replacement of the tooth teeth are formed by one inspection opening, in order to provide an area where the work becomes easier, it is necessary to equip the barrel drum with one cutout having the area. There existed a tendency for the intensity | strength fall resulting from formation of the inspection opening of a barrel drum to become large.

On the other hand, according to the structure of 2nd Embodiment, the operation opening which has the area which makes said operation easy is formed by the sum total of the some inspection opening 142. As shown in FIG. Therefore, the notch part formed as one inspection opening 142 can be made smaller, and the fall of strength by opening formation of the barrel drum 130 can be suppressed.

In addition, one cover plate 150 acts to close across the plurality of inspection openings 142, and the cover plate 150 generates bending between the inspection openings 142 with respect to the barrel drum 130. It is hard to reinforce. Thereby, reinforcement of the barrel drum 130 by the cover plate 150 is possible effectively. The size (total of the opening area of the plurality of inspection openings 142) of the inspection opening 142 as a whole can be made larger.

Therefore, while providing excellent intensity | strength to the barrel drum 130, the opening area as the whole inspection opening 142 can be enlarged, and operation | movement of a quick tooth replacement etc. can be performed easily and efficiently.

Suitably, the cover plate 150 overlaps with the outer surface of the circumferential wall 131 of the barrel drum 130 on the downstream side in the barrel drum rotation direction R than the inspection opening 142. 153 and an upstream end portion 152 overlapping the outer surface of the circumferential wall 131 of the barrel drum 130 on the upstream side in the barrel drum rotation direction R than the inspection opening 142, The length L1 in the barrel drum rotation direction R of the downstream side edge part 153 is set larger than the length L2 in the barrel drum rotation direction R of the upstream edge part 152.

The downstream end 153 of the cover plate 150 is located on the outer surface of the circumferential wall 131 of the hydraulic drum 130, and is located further downstream in the hydraulic drum rotation direction R than the inspection opening 142. do. From this, the abrasion by contact with the rice paddle and the grain of a threshing grain stand tends to generate | occur | produce in the downstream side edge part 153. FIG. However, in this structure, since the length L1 in the barrel drum rotation direction R of the downstream end part 153 is set larger than the length L2 of the upstream end part 152, the downstream end part ( Even if abrasion of 153 proceeds, it takes longer for the cover plate 150 to become unavailable. Therefore, the cover plate 150 can be used for a longer period of time and can be made excellent in durability.

Hereinafter, 2nd Embodiment is described more concretely.

6 is a longitudinal side view of the threshing apparatus with the barrel 101 according to the second embodiment. As shown in this figure, the threshing apparatus is the threshing part 103 which has the feeding chamber 110 located inside the front side of the base body 102, and the stepless installation provided so that drive rotation was possible to the rear of the said feeding chamber 110. The rice straw discharge conveyance apparatus 104 which consists of a rotating chain, and the sorting part 105 provided with the oscillation | separation sorting apparatus 120 in which the front end side is located below the said feeding chamber 110 are provided.

The threshing part 103 is provided with the said processing chamber 110, The barrel 101 which was provided in this feeding chamber 110 so that drive rotation was possible about the rotation axis center of the threshing body front-back direction, and the said processing chamber 110 was carried out. ) Is provided with a water receptacle 111 positioned and positioned around the outer side of the barrel 101, and threshing feed chain 112 provided in the outside of the base 102 so as to be driven and rotated.

The threshing part 103 supports the bottom side of the harvesting grain stand by the threshing feed chain 112, and conveys it to the threshing gas rearward direction, and transfers the tip end side of this harvesting grain stand to the barrel 101 and the receiving net of the feeding chamber 110 ( It is supplied between 111 and threshing process, and threshing rice straw discharge | emission is carried out by the threshing feed chain 112 from the rosin port 113 located in the rear part of the feeding chamber 110.

As shown to FIG.7, FIG.8, the threshing part 103 is equipped with the shatterproof piece 115 provided in the threshing opening 114 over the full 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, the grain is prevented from being scattered and scattered to the underside of the grain table conveyed by the threshing feed chain 112. The scattering prevention piece 115 is comprised by the canvas supported by the upper lip plate 116. As shown in FIG. The scattering prevention piece 115 is a split piece positioned on the front side of the body and a rear side of the body by a dividing line positioned at an intermediate position in the front and back direction of the threshing body 114 of the threshing tool 114 so as to facilitate replacement when worn. It consists of two divided canvases divided | segmented into the dividing piece located in.

The rice straw discharge conveying apparatus 104 takes the threshing rice straw discharged | emitted from the feeding chamber 110 from the threshing feed chain 112, and conveys it to the threshing gas rearward direction, and discharges it from the discharge port located in the rear part of the gas 102. Exhale outside the threshing gas.

The sorting section 105 is provided with the swing sorting device 120, and is provided at the rear of the air vent 121 and the feeding chamber 110 provided below the front end of the swing sorting device 120. The dust removal fan 122 is provided, and the 1st screw conveyor 123 and the 2nd screw conveyor 124 which were provided in the bottom part of the sorting room arranged in the front-back direction of the oscillation sorting apparatus 120 are provided.

The sorting unit 105 performs the first treatment by the rocking sorting by the rocking sorting apparatus 120 and the sorting wind supplied by the tuyere 121 to drop the threshing processed material which has fallen from the feeding chamber 110 through the water network 111. And the treatment 2 and dust to be sorted, the treatment 1 is dropped on the screw conveyor 123, the treatment 2 is dropped on the screw conveyor 124, and the dust is separated with the sorting wind. The gas is discharged from the exhaust port of the fan 122 or from the dust exhaust port located at the rear portion of the gas 102 to the outside of the gas.

The 1st screw conveyor 123 carries out the 1st process object which fell from the shaking-separation apparatus 120 to the transverse outer side of the base body 102.

The 2nd screw conveyor 124 carries out the 2nd process material which fell from the shaking-separation apparatus 120 to the transverse outer side of the base body 102. The 2nd processed material from the 2nd screw conveyor 124 is lifted by the reducing opening formed in the horizontal wall side part of the base body 102 by the conveying apparatus 106 provided in the transverse outer side of the base body 102, It is injected into the inside of the gas 102 from this reduction port, and is reduced to the front end side of the oscillation screening apparatus 120.

Next, the barrel 101 will be described in detail.

9 is a longitudinal side view of the barrel 101. 10 is a cross sectional view of the barrel 101. As shown in these figures, the barrel 101 has a barrel drum 130 and a circumferential direction of the barrel drum 130 on the outer surface side of the circumferential wall 131 of the barrel drum 130 and a rotation axis direction. It is comprised and equipped with the some plural gears 132 and 133 which were arrange | positioned and planted.

Among the sharp teeth 132 and 133, the sharp teeth 132 planted in a portion located at the front end of the barrel of the barrel drum 130 are provided with guiding teeth (entanglement of grain stems supplied from the threshing tool 114). Teeth having a delay on the end side, and the processing tooth 133 planted in other parts is juxtaposed.

The barrel 101 is provided with the support shaft 134 penetrated to the said drum drum 130, and is rotatably mounted in the chamber 110 by this support shaft 134. As shown in FIG.

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

11 is a plan view in a deployed state of the drum body 135. 9 and 10, the drum main body 135 is formed by bending a sheet metal into a cylindrical shape, and the end portions 135a of both sides in the drum body circumferential direction of the sheet metal are drum body. It is produced by overlapping and connecting in a radial direction of the 135 (barrel drum 130).

As a result, the barrel drum 130 is made of sheet metal. The barrel drum 130 is provided with the junction part 138 in which the sheet metal which comprises the circumference wall 131 is joined in one place in the circumferential direction of the barrel drum 130. The junction part 138 is the edge part 135a of the said both sides of the sheet metal which comprises the drum main body 135, and is joined.

As shown in Fig. 12, the barrel drum 130 is provided with reinforcing ribs 140 (hereinafter, end portions) provided at one end of both ends in the barrel drum rotation axis direction of the circumferential wall 131 in the barrel drum circumferential direction. Referred to as reinforcing ribs 140] and reinforcing ribs 141 provided in the direction of the circumferential drum in two places arranged in the direction of the axial drum rotational axis of the middle portion of the circumferential wall rotational axis of the circumferential wall 131. (Hereinafter referred to as heavy reinforcement rib 141). As shown in Fig. 8, each of the reinforcing ribs 140 and 141 is formed by a protrusion formed on the peripheral wall 131 by press molding the sheet metal constituting the peripheral wall 131. have. The protrusions constituting each of the reinforcing ribs 140 and 141 protrude toward the outer surface side of the circumferential wall 131.

As shown in Figs. 9 and 10, the barrel 101 is provided with a pair of inspection openings arranged in the circumferential direction of the drum 130 in the circumferential wall 131 of the barrel 130. 142 and 142 are provided.

12 is a plan view of the pair of check openings 142 and 142 in a closed state. FIG. 13 is an XIII-XIII cross-sectional arrow diagram of FIG. FIG. 14 is a cross-sectional arrow view of FIG. As shown in these figures, the pair of inspection openings 142 and 142 are closed by attaching one cover plate 150 to the surface side of the circumferential wall 131. The cover plate 150 is provided with the some piercing tooth 133 (juxtaposition) which protruded to the surface side.

15 is a plan view of the cover plate 150. 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 in the barrel drum rotation direction in the site | part where the space | interval of the edge part of this downstream side edge part 153 and the edge part in the downstream direction of the barrel drum rotation direction downstream of the said cover part 151 becomes small among the said downstream side edge parts 153. L1 is set larger than the length L2 in the barrel drum rotation direction of the upstream end 152.

That is, as shown in Figs. 12 to 14, the cover plate 150 has a circumferential wall (upstream side end 152 on the upstream side in the barrel drum rotation direction R than the inspection opening 142). 131, and the downstream end 153 overlaps the outer surface of the circumferential wall 131 on the downstream side in the barrel drum rotation direction R than the inspection opening 142. Mount on the wall 131. Attachment to the circumferential wall 131 of the cover plate 150 is a connection bolt attached to the bolt hole 155 formed in the upstream end portion 152, the downstream end portion 153, and the transverse end portion 154. And the connecting bolts attached to the bolt holes 155 formed between the pair of cover portions 151 and 151. Then, the cover plate 150 closes the pair of inspection openings 142 and 142 by acting the pair of cover portions 151 and 151 separately on the pair of inspection openings 142 and 142, respectively.

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 that connects the upstream end 152 to the circumferential wall 131 has an axis of the connecting bolt 157 and an end portion of the upstream end 152 that is upstream of the barrel in the direction of rotation. The interval is arranged at D2. The spacing D1 of the connecting bolt 156 of the downstream end 153 is set larger than the spacing D2 of the connecting bolt 157 of the upstream end 152.

That is, the downstream end 153 is located on the outer surface of the circumferential wall 131, and the downstream end 153 is located on the downstream side in the barrel drum rotation direction R than the upstream end 152, whereby Wear on the side end 153 due to contact with the rice paddles and grains of the threshing grain stand is likely to occur. Even if the space | interval D1 from the connection bolt 156 of the downstream side edge part 153 to the edge part becomes large, and abrasion occurs in the downstream edge part 153, abrasion reaches to the connection bolt 156 and the cover plate 150 is carried out. It takes time until the bad mounting occurs.

11 shows an open state of the pair of inspection openings 142 and 142. As shown in this figure, the pair of inspection openings 142 and 142 are opened by removing the cover plate 150, and the operation such as planting and replacing the tooth teeth 132 and 133 can be performed. At this time, an opening for inserting a hand or a tool inside the barrel is formed in the barrel drum 130. The pair of inspection openings 142 and 142 are arranged close to each other so that hands can be inserted into and work from the inspection openings 142 on both sides.

As shown in Figs. 12 and 14, the pair of inspection openings 142 and 142 are located in the vicinity of the joining portion 138, and are located close to the heavy reinforcing rib 141, and the two The intermediate reinforcement ribs 141 are sandwiched between and arranged in the rotational axis direction of the barrel drum 130.

As a result, the pair of inspection openings 142 and 142 have a reinforcing action in which the joining portion 138 exerts a decrease in strength due to the opening of the barrel 130, and reinforcement by the heavy reinforcing ribs 141. The working opening of the barrel drum 130 is formed in the state suppressed by action.

As shown in FIG. 7, the barrel 101 is provided with the counterweight 160 provided in the inner surface side of the said peripheral wall 131 of the barrel drum 130. As shown in FIG. The counterweight 160 achieves a rotational balance of the barrel 101 such that the barrel 101 is rotated in a well-rotated state regardless of the presence of the cover plate 150 or the junction 138.

16 is a side view of the rice straw discharge conveying device 104. As shown in this figure, the said straw discharge conveyance apparatus 104 is equipped with the swing support point 104a provided in the conveyance termination side of this straw discharge conveyance apparatus 104. As shown in FIG.

The straw discharge conveying apparatus 104 shown by the dashed-dotted line in FIG. 16 is the straw discharge conveying apparatus in the downward conveyance state, and the straw straw conveying conveying apparatus 104 shown by the solid line in FIG. 16 is the straw discharge conveying apparatus in the upward rocking state. .

That is, when the straw discharge clogging occurs, the upper cover 102a of the gas 102 opens and swings upward. Then, the stopper 140 with respect to the rice straw discharge conveyance apparatus 104 raises by the up-and-down swing of the upper cover 102a, and the rice straw discharge conveyance apparatus 104 is in the downward conveyance state which approached the conveyance guide lever 141. Release the action to keep. 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. Thereby, the space | interval of the straw discharge conveyance apparatus 104 and the conveyance guide lever 141 becomes wide, and the strong pinch support of the clogged straw discharge by the straw discharge conveyance apparatus 104 and the conveyance guide lever 141 is cancelled | released, It becomes easy to remove clogged rice straw.

[Another embodiment of the second embodiment]

Instead of securing an opening of a required size by a pair of inspection openings as in the above embodiment, a configuration may be employed in which an opening of a required size is secured by three or more inspection 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.

In this 3rd Embodiment, the threshing apparatus pinches the root side of the harvesting grain stand and conveys the harvesting grain stand, and the harvesting grain stand conveyed by the fitting support conveyance mechanism 206. The barrel 209 which performs a threshing process to the end side, and the guide plate 247 which guides the grain which flows to the barrel side of the harvesting grain table with rotation of the barrel 209 toward the barrel 209 are provided. This guide plate 247 is comprised from the several board body arrange | positioned and arrange | positioned along the conveyance direction of the harvesting grain stand at the position above the harvesting grain stand conveyed by the fitting support conveyance mechanism 206. As shown in FIG. These board | substrates are arrange | positioned so that the rear-end edge 248A of the front plate 248 of the front side adjacent to front and back, and the front edge 249A of the back plate 249 may contact.

The guide plate as described above guides the grain flowing down to the underside of the harvesting grain table with the rotation of the barrel toward the barrel, so that the grain is introduced into the underside of the harvesting grain table conveyed by the sandwiching conveyance mechanism. This is to prevent the occurrence of the grains, whereby the grains obtained by the threshing treatment become studded grains and can be prevented from being discharged to the outside of the gas together with the harvested grains after the threshing treatment, and the grain recovery efficiency can be improved. Can be.

By the way, as a conventional guide plate (embedded anti-corrugated body), it is comprised by the plate of one sheet supported so that it could slide up and down on the fitting support rail of a fitting support conveyance mechanism (feed chain unit), or it could slide up and down on a fitting support rail. In some cases, the guide plate is constituted by a plurality of plates, and when the guide plate is configured by a plurality of plates, it is conceivable to arrange each plate so as to have a gap between adjacent plates before and after (for example, JP-made). 2006-014604 A (see paragraphs 0023 to 0032, Figs. 3A and 9B).

If the guide plate is composed of one plate, it is necessary to replace the whole guide plate in the event of deformation, deficiency or abrasion due to prolonged use, so there is room for improvement in terms of economical efficiency. .

If the guide plate is composed of a plurality of plates, in the case of deformation or defect of the guide plate or wear caused by long-term use, only the plate having the deformation or defect or the like can be replaced and the entire guide plate needs to be replaced. Since there is no, it is advantageous in terms of economics.

On the other hand, as described above, by having a gap between adjacent front and rear plates, the grains that leak to the base of the harvesting grain stand through the gap become lodged grains and are discharged to the outside of the gas together with the harvesting grain stand after the threshing treatment. It becomes more likely to become, and it causes the fall of grain recovery efficiency by that much.

Moreover, the fall of the threshing performance by the blockage of conveyance of the harvesting grain stand or the disturbance of the conveyance posture (threshing posture) of the harvesting grain stand resulting from the insertion of the root side of the harvesting grain stand conveyed by the clamping support conveyance mechanism between plates, etc. It becomes easy to cause it.

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. Further, by arranging the plurality of plate members 248 and 249 constituting the guide plate 247 in the front-rear direction, it is possible to effectively prevent the possibility of the grains leaking from the front and rear adjacent plate bodies toward the root side of the harvesting grain table. At the same time, it is possible to effectively suppress the possibility that the root side of the harvesting grain stand conveyed by the sandwiching support conveyance mechanism 206 is drawn between the adjacent plate bodies before and after.

Thereby, the grain obtained by threshing process becomes the stuck grain which pulls in to the root side of the harvesting grain stand conveyed by the fitting support conveyance mechanism 206, and it is more certain that there is a possibility that it will be discharged | emitted outside the gas with the harvesting grain stand after threshing process. Can be prevented.

In addition, the blockage of conveyance of the harvesting grain stand and the conveyance posture of the harvesting grain stand (threshing posture) resulting from the pull-out side of the harvesting grain stand conveyed by the clamping support conveyance mechanism 206 between the board bodies 248 and 249 adjoining back and forth (threshing posture) ), The disturbance can be effectively suppressed, and the dropping of the threshing performance due to the blockage of the conveyance and the disturbance of the conveyance posture can be effectively prevented.

In addition, when deformation | transformation, a defect, etc. generate | occur | produce in the guide plate 247, it is possible to cope by replacing only the plate body 248 or 249 of the site | part in which the deformation | transformation, a defect, etc. occurred, without replacing the whole guide plate 247.

Therefore, it is possible to economically deal with a case in which deformation, deficiency or the like occurs in the guide plate 247, while preventing the reduction of grain recovery efficiency due to the embedded grains, and also effectively suppressing the drop of threshing performance. Can be.

Preferably, the guide plate 247 is formed such that an end portion of the barrel 209 side is drawn into an inner side of the rotational trajectory drawn by the tip end portion of the barrel 220, and at the barrel side end portion of the barrel 220. Concave portions 248B and 249B to allow passage are formed.

According to this characteristic structure, the guide plate 247 does not cause the damage by the interference of the guide plate 247 and the tooth feeder 220, and the grain which flows to the base side of the harvesting grain stand with rotation of the barrel 209 is carried out. It is possible to more guiding toward the barrel 209 by the. Thereby, the possibility that the grain obtained by threshing process becomes a stuck grain, and it is possible to prevent more reliably from being discharged to the outside of a gas with the harvesting grain stage after a threshing process.

In addition, it is also appropriate that the guide plate 247 is disposed so that its front end is located behind the front end of the barrel 209.

According to this characteristic configuration, the fitting is compared with the case where the front end portion of the guide plate is disposed at the front and rear position identical to the front end portion of the barrel, or when the front end portion of the guide plate is disposed so as to be located ahead of the front end portion of the barrel. The fear that the harvesting grain stand supplied in the threshing process area | region of the barrel 209 by the support conveyance mechanism 206 will become difficult to supply in the threshing process area of the barrel 209 by the contact with the guide plate 247 is suppressed. can do.

In addition, in the front end side of the barrel 209, since the grain obtained by threshing process is few and the amount of grain which flows down to the base side of the harvesting grain table with rotation of the barrel 209 is small, the guide plate 247 is sheared. Even if it arrange | positions so that it may be located in the back side rather than the front end part of the additional barrel 209, the possibility that the grain obtained by threshing process will become a lodged grain becomes low. In addition, even if the stuck grain is generated on the front end side, the thrust grain of the barrel portion occupying most of the barrel 209 except for the front end side can be released and dropped from the bottom side of the harvesting grain stand.

Therefore, by rationally arranging the guide plate 247, without causing a decrease in the grain recovery efficiency due to the embedded grain, the transfer blockage of the harvesting grain stand due to the contact with the guide plate 247 at the threshing treatment start end portion, The disturbance of the conveyance posture (threshing posture) of the harvesting grain stand can be suppressed, and the fall of threshing performance by the disturbance of the conveyance blockage and the conveyance posture can be prevented.

In addition, the barrel 209 is a front and rear two-split structure having the first barrel 216 forming the front side and the second barrel 217 forming the rear side, as appropriate. It is comprised so that the rotation speed of the 2nd barrel part 217 may become faster than the rotation speed of the eastern part 216.

According to this characteristic structure, since the 1st barrel part 216 is rotationally driven at a comparatively low speed, generation | occurrence | production of the cut rice straw, rice straw waste, etc. by the threshing process in the 1st barrel part 216 can be suppressed. As a result, grain granulation caused by the threshing treatment is inhibited by cut rice straw or rice straw flakes generated on the upstream side of the threshing treatment region, and rice straw crumbs contained in the processed material after the threshing treatment. You can suppress more.

In addition, by rotating the second barrel 217 at a relatively high speed, the guide plate 247 can be guided by the guide plate 247 to effectively release and drop the grain drawn to the tip end side of the harvesting grain stand. Thereby, the possibility that the grain obtained by the threshing process may discharge | emit to the outside of gas with the harvesting grain bag after a threshing process can be prevented effectively.

Therefore, while promoting the granulation of grains by threshing process and improving the sorting efficiency and sorting precision in the sorting process after threshing process, the fall of the grain collection efficiency by the stuck grain can be prevented more effectively. .

Moreover, it is also suitable that the guide plate 247 is arrange | positioned so that the rear end may be located in the back side rather than the rear end of the barrel 209.

According to this characteristic structure, also at the rear end side of the barrel 209 and the back side of the barrel 209, the grain which flows to the base side of the harvesting grain table with rotation of the barrel 209 is guided by the guide plate 247. It can certainly guide towards the barrel. Thereby, it is possible to prevent the grain obtained by threshing processing from entering into the root side of the harvesting grain stand conveyed by the clamping conveyance mechanism 206 in the terminal part of a threshing process area | region.

In particular, when this characteristic configuration is applied to the barrel 209 of the forward and backward two-split structure, the rotation speed of the second barrel 217 is increased, so that the grains easily turning together with the second barrel 217 are guided. 247 can be reliably guided to the barrel 209.

Therefore, the fall of grain collection efficiency by the stuck grain in the terminal part of a threshing process area can be prevented reliably.

In addition, it is also appropriate that the guide plate 247 is attached to the outer surface of the upper case 202 which covers the barrel 209.

According to this characteristic structure, compared with the case where the guide plate 247 is installed in the inner side surface of the upper case 202, the abrasion of the guide plate 247 by contact with the process material obtained by threshing process can be suppressed. Can be. In addition, when the guide plate 247 is mounted on the inner side surface of the upper case 202, the grain collides with the upper edge portion of the guide plate 247, resulting in damage to the grain or the guide plate 247. And partial pulling of the cut rice straw between 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 rice straw which is partially drawn between the guide plate 247 and the upper case 202 adversely affects the threshing process. The fall of processing power can be avoided beforehand.

Hereinafter, 3rd Embodiment is described more concretely.

Fig. 17 is a longitudinal side view of the threshing apparatus mounted on the whole culm discharging type combine-harvester. As shown in this figure, the threshing apparatus includes a lower case 201 mounted on the left half of a vehicle body frame (not shown), an upper case 202 connected to the lower case 201 so as to be opened and closed, and the like. The processing space is formed by this.

As shown in Figs. 17 and 18, in the processing space, threshing part 203 which performs a threshing process on the ear tip side of the harvested grain table, a sorting part 204 which performs the sorting process on the processed material obtained by threshing process, And a recovery unit 205 for recovering grains or the like obtained by the sorting process.

The threshing part 203 supports the fitting support conveyance mechanism 206 arrange | positioned at the left side, the water receptacle 207 attached to the upper side of the lower case 201, and the support shaft 208 of the front-back direction as a support point. It is comprised by the barrel 209 etc. which were provided in the upper case 202 so that rotation in the left direction can be seen from one side.

The fitting support conveying mechanism 206 includes a feed chain 210 made of an endless rotary chain with protrusions provided in the lower case 201, a rail stand 211 and a rail stand 211 equipped with the upper case 202. The fitting support rail 212 supported by the up-down displacement, and the several support spring 213 etc. which press down the fitting support rail 212 toward the feed chain 210 are comprised.

And the pinch support conveyance mechanism 206 is mowing conveyance of the root side of the harvesting grain stand conveyed by the cutting conveying apparatus which is not shown in figure by the rotation of the feed chain 210 by the power from the engine which is not shown in figure. At the same time as it is taken out from the apparatus, it is sandwiched between the feed chain 210 and the fitting support rail 212 and conveyed toward the rear side. The threshing opening formed in this tip support conveyance between the lower lip plate 201A of the lower case 201, and the upper lip plate 214 of the upper case 202 by the ear tip side of the harvesting grain table ( 215 is supplied between the water network 207 and the barrel 209.

The water net 207 is a lattice-shaped concave water net formed in an arc shape curved along the outer circumference of the barrel 209 and configured to be divided into two in the circumferential direction of the barrel 209, and the lower side of the barrel 209 It is arrange | positioned so that it may cover.

The barrel 209 has a first barrel 216 on the front side forming most of the barrel 209 on the support shaft 208 in the front-rear direction and a rear side on the rear side forming the rear end of the barrel 209. It is a front and rear two-split structure configured by equipping the barrel 217 so as to be relatively rotatable. And the barrel 209 rotates to the left direction when each barrel part 216 and 217 makes the support shaft 208 support point by the power from an engine, and it rotates to the left direction, and the insertion support conveyance mechanism 206 of the A threshing process is performed to the ear tip side of the harvesting grain stand supplied between the water receptacle 207 and the barrel 209 by clamping conveyance.

The 1st barrel part 216 is comprised by the barrel main body 218 formed in the drum shape, the some barrel 219, 220 etc. which protruded in the circumferential wall of the barrel main body 218, and the like. The second barrel portion 217 is constituted by a barrel body 221 formed in a drum shape, a plurality of barrel teeth 220 protruding from the circumferential wall of the barrel body 221, and the like. Among the gears 219 and 220, the gear 19 protruding from the front end of the first barrel 216 is a juxtaposition. Portions other than the front end of the first barrel 216 and the teeth 220 protruding from the second barrel 217 are juxtaposed.

The first barrel 216 is rotated slower than the second barrel 217 with the support shaft 208 as a supporting point by the power from the engine transmitted via the belt tensioned first transmission mechanism 222 or the like. It is rotated in the left direction when viewed from the rear at the speed. The second barrel 217 is rotated faster than the first barrel 216 with the support shaft 208 as a supporting point by the power from the engine transmitted through the belt tension-type second transmission mechanism 223. It is rotated in the left direction when viewed from the rear at the speed.

As described above, by rotationally driving the first barrel 216 at a relatively slow rotational speed, generation of cut rice straw, rice straw flakes, or the like caused by threshing treatment in the first barrel 216 can be suppressed. As a result, grain granulation caused by the threshing treatment is inhibited by cut rice straw or rice straw flakes generated on the upstream side of the threshing treatment region, and the increase in the amount of rice straw flakes included in the processed product after the threshing treatment can be suppressed. have. As a result, the granulation of a grain by a threshing process can be accelerated | stimulated, and the sorting efficiency and sorting precision in the sorting process after a threshing process can be aimed at.

Further, by rotationally driving the second barrel 217 at a relatively high rotational speed, more effective threshing treatment can be performed at the tip end side of the harvesting grain table at the end side of the threshing processing region, and at the tip end side of the harvesting grain table. Can be solved more effectively. As a result, the threshing residue can be effectively suppressed, and the grains obtained by the threshing treatment can become studded grains introduced into the harvesting grains, and the risk of being discharged out of the gas together with the harvesting grains after the threshing treatment can be effectively prevented. As a result, the fall of grain collection efficiency by the embedded grain can be prevented.

The processed material obtained by the threshing process of the barrel 209 described above is leaked from the water net 207 toward the sorting unit 204, and the processed material not leaked from the water net 207 is formed behind the water net 207. The discharge port 224 is discharged to the sorting unit 204.

The sorting unit 204 is the swing sorting mechanism 225 for sifting the processed material from the threshing unit 203, and the main tuyere 226 for performing wind sorting processing on the processed material from the threshing unit 203. And dust such as a diffused copper 229 acting on the processed material from the first sub-window 227, the second sub-window 228, the rosin port 224, and the like, and straw straw blown up by the wind screening treatment. It is comprised by the exhaust fan 230 etc. which suction and discharge | emit to an exterior of a vehicle.

The swing sorting mechanism 225 includes 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 first grain pan 232 for sorting is formed. The second grain pan 233 for sorting, the chaff sheave 234 for sorting, the first stroke rack 235 for sorting, the 2nd straw rack 236 for sorting, etc. are arrange | positioned. The grain sheave 237 for precision sorting is arrange | positioned at the bottom of the sheave case 231. As shown in FIG. The rear part of the sheave case 231 is equipped with the eccentric cam drive part 238 which oscillates and drives the sheave case 231 by the power from an engine.

Then, the swing sorting mechanism 225 oscillates and is driven by the power from the engine, thereby performing a sifting treatment on the processed material from the threshing unit 203. While leaking, the rice straw or rice straw flakes which are not leaked are conveyed toward the dust exhaust port 239 formed at the rear end of the threshing apparatus.

The main tuyere 226 is equipped at the front lower part of the lower case 201 so that rotation about the axial center in the left-right direction is possible, and it is comprised so that adjustment of the air volume according to the sorting processing amount is possible. Then, the main tuyere 226 is rotated by the power from the engine with the shaft center in the left and right direction as a supporting point, and flows toward the exhaust fan 230 or the exhaust port 239 from the front downward of the grain sheave 237. The sorting wind is generated, and the sorting wind causes the lightly cut rice straw or rice straw flakes, etc., contained in the processed material to be precisely sorted by the grain sheave 237 to the backing fan 230 or the dust exhaust port 239. Wind bounces.

The first sub air vent 227 is provided at the front end of the lower case 201 to enable rotation around the axis in the left and right directions. Then, the first sub air vent 227 is driven to rotate with the shaft center in the left and right direction as a supporting point by the power from the engine, so that the exhaust fan 230 or the exhaust fan is discharged between the first grain fan 232 and the chaff sheave 234. A sorting wind flowing toward the true mouth 239 is generated, and the sorting wind causes the fan 230 or the dust to cut lightly cut rice straw or rice straw crumbs, etc., contained in the processed material flowing down the chaff sheave 234. Wind is conveyed toward the dust exhaust port 239.

The second sub air vent 228 is provided at the rear lower portion of the lower case 201 to enable rotation around the axis in the left and right directions. Then, the second sub-vent 228 is driven to rotate with the shaft center in the left-right direction as a supporting point by the power from the engine, so that the exhaust fan 230 is provided through the first stroke rack 235 or the second stroke rack 236. And generate a sorting wind flowing toward the dust exhaust port 239, and the specific gravity contained in the processed material sifted by the first straw rack 235 or the second straw rack 236 is light by this sorting wind. The cut rice straw, rice straw flakes, etc. are conveyed by the wind toward the exhaust fan 230 or the exhaust port (239).

The diffusion cavity 229 is provided at the rear upper portion of the upper case 202 so that rotation around the axis in the left and right directions is possible. Then, the diffusion copper 229 is rotated and driven by the axial center in the left and right direction by the power from the engine, thereby releasing the processed material conveyed from the second grain fan 233 toward the first stroke rack 235, Leaking from the first stroke rack 235, the second straw rack 236, etc., such as granulated grains and crushed grains contained in the processing object, is promoted.

The exhaust fan 230 is mounted on the rear upper portion of the upper case 202 to enable rotation about the axial center in the left and right directions. In addition, the exhaust fan 230 is driven to rotate with the shaft center in the left and right directions as a support point by the power from the engine, so as to suck dust such as rice straw crumbs conveyed by the sorting wind to the outside of the exhaust port 239. Discharge.

Thereby, in the sorting part 204, the granulated grain as 1st thing which leaks the process material from the threshing part 203 from the grain sheave 237, and 2 supplied to the back of the grain sheave 237 It can be selected with high accuracy by mixing mixed with crushed rice grains and rice straws, etc., and cut rice straws, rice straws, etc., which are discharged to the outside of the gas from the exhaust port 239.

The recovery part 7 is supplied to the 1st recovery part 240 formed below the grain sieve 237, and the back of the grain sheave 237 so that the granulated sieve 237 leaked from the grain sieve 237 may be collect | recovered. It is comprised by the 2nd collection part 241 etc. which were formed in back of the grain sheave 237 so that a mixed material may be collect | recovered. The lower part of the 1st recovery part 240 is rotated about the axial center of a left-right direction by the power from an engine, and the 1st screw which conveys the granulated grain collect | recovered by the 1st recovery part 240 toward right direction ( 242 is disposed. The lower part of the 2nd recovery part 241 is rotated about the axial center of a left-right direction by the power from an engine, and the 2nd screw 243 which conveys the mixed material collect | recovered by the 2nd recovery part 241 toward right direction is carried out. ) Is arranged.

The lifting conveyor 244 which lifts the granulated grain conveyed by the 1st screw 242, and supplies it to the grain tank which is not shown in the right end part of the 1st screw 242 by interlocking with the 1st screw 242. ) Are connected. At the right end of the second screw 243, the second treatment copper 245 performs a threshing treatment on the mixed material conveyed by the second screw 243 by interlocking with the second screw 243. ) And the 2nd reduction screw 246 which reduce the mixture after threshing process by the 2nd process copper 245 to the sorting part 204 are connected.

As shown in Figs. 17 to 20, the upper lip plate 214 is provided with a barrel 209 for the grains flowing down from the top of the barrel 209 toward the root side of the harvested grain table with the rotation of the barrel 209. The guide plate 247 which guides toward () is equipped.

As a result, the grains obtained by the threshing treatment become studded grains drawn to the root side of the harvesting grain table conveyed by the fitting support conveying mechanism 206, and the possibility of being discharged out of the gas together with the harvesting grain table after the threshing treatment can be prevented. Can be.

The guide plates 247 are two plate bodies 248 and 249 which are arranged before and after along the conveying direction of the harvesting grain stand in the upper position with respect to the harvesting grain stand conveyed by the insertion support conveyance mechanism 206. It is comprised by). The two plate bodies 248 and 249 are made of resin, and are arranged so that the rear end edge 248A of the front plate 248 and the front edge 249A of the rear plate 249 are in contact with each other.

Thereby, with the rotation of the barrel 209, the grain which flows down from the upper part of the barrel 209 toward the root side of a harvesting grain stand leaks toward the root side of a harvesting grain stand between two board bodies 248 and 249. The risk of falling can be prevented. As a result, it is possible to prevent the occurrence of studded grains due to the leaking, and the stubble grains can prevent the grains from being discharged to the outside of the gas together with the harvested grains after the threshing treatment.

Moreover, it can suppress that the base side of the harvesting grain stand conveyed by the fitting support conveyance mechanism 206 is pulled in between two board bodies 248 and 249. As a result, the blockage of conveyance of the harvesting grain stand and the disturbance of the conveyance posture (threshing posture) of the harvesting grain stand resulting from the pulling-in can be suppressed effectively, and the fall of threshing performance by the conveyance blockage or the disturbance of the conveyance posture, etc. can be prevented. Can be.

In addition, when deformation | transformation, a defect, etc. generate | occur | produce in the guide plate 247, it is possible to cope by replacing only the plate bodies 248 and 249 of the site | part in which the deformation | transformation, a defect, etc. arose, without replacing the whole 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.

Thereby, compared with the case where each plate body 248 and 249 is attached to the inner side surface of the upper lip plate 214, abrasion of each plate body 248 and 249 by contact with the process material obtained by threshing process is prevented. It can be suppressed. As a result, the durability of each of the plates 248, 249 can be improved.

Further, the grain collides with the upper edges of the respective plate bodies 248 and 249 or the pressing plate 250, which may be caused when the respective plate bodies 248 and 249 are mounted on the inner side surface of the upper lip plate 214. By doing so, it is possible to avoid the damage of the grain and the partial introduction of the rice straw cut between the plate bodies 248 and 249 and the upper lip plate 214. As a result, in addition to improving the grain quality, cut rice straw, which is partially drawn in between the plate bodies 248 and 249 and the upper lip plate 214, adversely affects the threshing process, thereby lowering the processing capacity. Can be avoided.

In the state where each plate body 248 and 249 is attached to the upper lip plate 214, those lower end parts are located below the lower edge of the upper lip plate 214, and predetermined | prescribed with rotation of the barrel 209 The front end of each of the feed teeth (juxtaposition) 220 is formed to be drawn into the inside of the rotational trajectory. A plurality of recesses 248B and 249B are formed at the lower ends of the plate bodies 248 and 249 to allow passage of the predetermined tooth teeth 220.

As a result, the guide plate 247 does not cause damage due to the interference between the plate bodies 248 and 249 and the predetermined feed teeth 220, and flows down to the underside of the harvesting grain table with the rotation of the barrel 209. Can be guided more reliably toward the barrel 209. As a result, it is possible to more reliably prevent the risk that the grains obtained by the threshing treatment become stubborn grains and are discharged to the outside of the gas together with the harvesting grains after the threshing treatment.

In the front end of the front plate 248, the front side of the plate body 248 is located upward, and the grain stand guide part 248C which guides the harvesting grain stand conveyed by the fitting support conveyance mechanism 206 downward is formed. .

Thereby, when the harvesting grain stand conveyed by the clamping conveyance mechanism 206 is conveyed to the board | plate body 248 of the front side, the harvesting grain stand will be moved by the action of the grain stand guide part 248C. It is smoothly guided below the front plate 248 without being caught by the plate body 248. As a result, the blockage of conveyance of the harvesting grain stand and the threshing performance by the disturbance of the conveyance posture (threshing posture) of the harvesting grain stand due to the latch can be avoided beforehand.

The front plate 248 is arranged such that its front end is located behind the front end of the barrel 209. The rear plate 249 is disposed so that its rear end is located behind the rear end of the barrel 209.

Thereby, when the front plate body 248 is arrange | positioned so that the front end part may be located in the front-back position same as the front end part of the barrel 209, or the front end part is located in front of the front end part of the barrel 209. In comparison with the case of arrangement | positioning, the harvesting grain stand supplied in the threshing process area | region of the barrel 209 by the fitting support conveyance mechanism 206 is threshing process of the barrel 209 by the contact with the plate body 248 of the front side. The possibility of becoming difficult to supply in the area can be suppressed.

In addition, in the front end side of the barrel 209, since the grain obtained by threshing process is few and the amount of grain which flows down to the base side of the harvesting grain table with rotation of the barrel 209 is small, the plate body 248 of the front side is Even if the front end portion is disposed so as to be located behind the front end portion of the barrel 209, the possibility that the grain obtained by the threshing process becomes embedded is reduced. For example, even if the stuck grain generate | occur | produces in the front end side, the threshing grain of the barrel part which occupies most other than the front end side of the barrel 209 can be loosened and dropped from the root side of a harvesting grain stand.

Moreover, the grain which becomes easy to turn with the 2nd barrel part 217 by speeding up the rotation speed of the 2nd barrel part 217 can be reliably guided toward the barrel 209 by the back plate 249. have. As a result, the grain obtained at the terminal part of the threshing process area | region becomes a stuck grain, and it can prevent effectively the possibility of discharge | emission to the outside of gas with the harvesting grain bag after threshing process.

As shown in Figs. 17 and 21 to 27, the barrel body 218 of the first barrel portion 216 is formed after the first cylindrical portion 251 and the first cylindrical portion 251 having a truncated cone shape. At the rear end of the cylindrical second cylindrical portion 252 connected to the end portion, the cylindrical front wall 253 and the second cylindrical portion 252 connected to the rear end of the first cylindrical portion 251. It is comprised by the circular rear wall 254 etc. which are connected.

The second cylindrical portion 252 is a sheet metal material obtained by bending a sheet metal material in a cylindrical shape, and joining the two end portions 252A, 252B in the circumferential direction thereof in the radial direction.

The front end of the second cylindrical portion 252 is provided with a ring-shaped first reinforcing rib 255 protruding outward. The front and rear intermediate portions of the second cylindrical portion 252 are provided with a ring-shaped second reinforcing rib 256 and a third reinforcing rib 257 protruding outward. The rear end of the second cylindrical portion 252 is provided with a ring-shaped fourth reinforcing rib 258 protruding outward. 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 barrel 216 is provided with a pair of front and rear inspection openings 259 and 260 and a single cover 261 that closes and closes the inspection openings 259 and 260 so that they can be opened and closed. Each of the inspection openings 259 and 260 includes 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 cylindrical portion 252. It is comprised by the opening and closing openings 252G and 252H which are large so that the opening area formed so that the front and back may be lined up front and rear along the support shaft 208 may be provided. A plurality of through holes 252K for bolt connection are formed in the circumference (including between each opening 252G and 252H) of each opening 252G and 252H in the second cylindrical portion 252, and a plurality of Rear nut 262 is welded.

The lid 261 is formed concave so that a pair of front and rear lid portions 261A and 261B for closing the front and rear inspection openings 259 and 260 are inserted inwardly into the front and rear inspection openings 259 and 260, and the first opening is provided. The curvature is formed in the same curvature as the 2nd cylindrical part 252 so that it may become a part of the peripheral wall of the barrel part 216. As shown in FIG. The plurality of feed teeth (juxtaposition) 220 protrudes from the front and back cover parts 261A and 261B.

A frame-shaped connecting portion bolted to the second tubular portion 252 is disposed around each cover portion 261A and 261B in the lid body 261 (including between the lid portions 261A and 261B). 261C). The connection part 261C is formed in the curvature so that the inner surface may join the outer peripheral surface of the 2nd cylindrical part 252. As shown in FIG. The plurality of through holes 261D for bolt connection are formed in the connecting portion 261C.

By this structure, the lid 261 is opened using each through hole 252K of the second cylindrical portion 252, each through hole 261D of the rear nut 262, and the lid 261. By bolting to the second cylindrical portion 252, the respective cover portions 261A and 261B of the lid 261 are properly inserted into the inspection openings 259 and 260 of the first barrel 216. In this case, each of the inspection openings 259 and 260 of the first barrel 216 can be closed by the lid 261. In addition, by releasing the bolt connection, the cover 261 can be removed from the second cylindrical portion 252 to open the inspection holes 259 and 260 of the first barrel 216.

Thus, the cover body 261 which needs to be performed from the back surface side of the cover body 261 by removing the cover body 261 from the 2nd cylindrical part 252, and opening each inspection opening 259 and 260. Can be easily replaced by the work from the back side, and is provided in the first barrel 216 that needs to be performed from inside the first barrel 216. The replacement of each of the gears 219 and 220 can be easily performed by the operation of inserting a hand from the front and rear inspection openings 259 and 260 toward the inside thereof.

As for the connection part 261C of the cover 261, the minimum length L1 in the quick rotation direction of the downstream connection part 261Ca located in the downstream of the quick rotation direction is in the upstream of the quick rotation direction. It is formed so that it may become longer than length L2 in the quick rotation direction of the upstream connection part 261Cb located. Moreover, the length D1 from the edge part of the downstream direction of the rapid rotation direction in the downstream connection part 261Ca to each through hole 261D of the downstream connection part 261Ca is the upstream connection. It is formed so that it may become longer than the length D2 from the edge part of the rapid rotation direction upstream in the part 261Cb to each through hole 261D of the upstream connection part 261Cb.

In other words, the cover is joined to the outer circumferential surface of the second cylindrical portion 252 and located downstream of the barrel rotational direction, so that the contact resistance with the processing material such as a rice paddle or grains at the time of threshing processing increases. The downstream connection portion 261Ca of the sieve 261 is formed so that the length D1 from the end edge of the downstream direction of the rapid rotation direction to each through hole 261D is as long as possible, such as a cradle or grain of a harvesting grain stand. The time required until wear due to contact with the workpiece reaches the through holes 261D of the downstream connection portion 261Ca is made to be as long as possible. Thereby, the replacement | exchange frequency of the cover body 261 by the wear of the downstream connection part 261Ca can be made low.

In the second cylindrical portion 252, the front and rear openings 252G and 252H are formed in the vicinity of the overlapping portions of the both ends 252A and 252B in the second cylindrical portion 252. In addition, as described above, 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 cylindrical portion 252. It is formed to be.

Thereby, while forming the opening and closing openings 252G and 252H which become the inspection openings 259 and 260 of the 1st barrel part 216 to have a large opening area which is easy to insert a hand, a tool, etc., The reinforcement effect obtained by the superposition of the both ends 252A, 252B in 252, the reinforcement effect by each reinforcement rib 255-258, etc. effectively reduce the intensity | strength in the 2nd cylindrical part 252. It can be suppressed.

In the lid 261, when closing the inspection openings 259 and 260 of the first barrel 216, the second reinforcing rib 256 and the third reinforcing rib 257 of the second cylindrical portion 252 are closed. ), Four projections 261E to 261H are respectively formed to be inserted outside. As described above, in the lid 261, front and rear lid portions 261A and 261B are formed concave.

That is, the lid 261 is effectively reinforced by the reinforcement effect obtained by forming the front and back cover portions 261A and 261B, the reinforcement effect obtained by forming the four protrusions 261E to 261H, and the like.

Thereby, in the state which closes each inspection opening 259 and 260 of the 1st barrel part 216 by the cover body 261, the reinforcement effect in the above-mentioned 2nd cylindrical part 252, and a cover body By the synergistic effect with the reinforcement effect in 261, the high intensity | strength as the 1st barrel part 216 can be ensured.

As shown in Fig. 20, on the inner surface of the second cylindrical portion 252 in the first barrel 216, a counterweight 63 for stabilizing the rotational balance of the first barrel 216 is provided. 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.

The first barrel 216 may be provided with a single inspection port having a large opening area or three or more inspection holes. Moreover, you may provide the several cover body which occludes each inspection opening individually.

As shown in FIG. 17, in the rocking | fluctuation sorting mechanism 225, the chaff sheave 234 is comprised so that opening degree can be adjusted. Above the chaff sheave 234, a throughput sensor 264 for detecting the layer thickness of the workpiece deposited on the chaff sheave 234 as a sorting throughput is disposed.

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.

As shown in Figs. 17, 28, and 29, in the swing sorting mechanism 225, the first stroke rack 235 and the second stroke rack 236 are temporarily installed on the sheave case 231 in the horizontal direction. It is comprised by the support members 235A and 236A, and the tooth-shaped rack plates 235b and 236B which cantilever-supported by the support members 235A and 236A so that the space | interval may be predetermined in the left-right direction. Moreover, the 1st stroke rack 235 and the 2nd straw rack 236 are equipped with the inclined attitude | position of the rearward upward located in the back part side used as the downstream side of the process material conveyance direction. The first stroke rack 235 and the second stroke rack 236 are positioned so that the front end of the second stroke rack 236 is located below the rear end of the first stroke rack 235 and the first stroke rack 235 It is arrange | positioned so that it may have a space | interval predetermined spaced up and down between the rear end part and the front end part of the 2nd stroke rack 236. The gap between the main blow holes 226 and the second sub blow holes 228 is configured to pass through this gap.

Thereby, when the processing material flows from the rear end of the first stroke rack 235 toward the front end of the second stroke rack 236, the sorting wind from the main tuyere 226 and the second sub tuyere 228 is prevented. Thereby, the lightly cut rice straw, rice straw crumbs, etc. which are contained in the processed material can be conveyed by wind toward the dust discharge port 239. As a result, the content of the cut straw, the straw straw, etc. in the processed material sifted by the second straw 236 is reduced, and the grains are likely to leak from the second straw 236. The sifting of the grain from the processed material in the straw rack 236 can be performed more efficiently.

As shown in Figs. 17 and 28 to 30, an opening and closing plate 265 for changing the opening degree of the exhaust port 239 is provided below the exhaust fan 230. The rear end of the sheave case 231 is equipped with a restricting plate 266 for restricting the flow of the processed material conveyed from the second stroke rack 236 and the like to the dust exhaust port 239.

As shown in Figs. 28 and 29, the opening and closing plate 265 swings on the rotational shaft 267 in the left and right directions supported by the lower case 201 so as to be relatively rotatable with the rotational shaft 267 as a supporting point. It is connected. At the loose end of the opening / closing plate 265, a plurality of piano wires 268 that are bent in an inverted c-shape are arranged at predetermined intervals in the horizontal direction. The rotating shaft 267 is bent so that the left end part may face downward, and the weight 269 is screw-mounted to the left end part so that position adjustment is possible. And, the opening and closing plate 265 is a reference that swings to the rear side with an opening angle (for example, 25 degrees) of a predetermined angle with respect to the vertical posture of the opening and closing plate 265 in the state in which the weight 269 is vertically lowered. The posture is set to be a posture.

The opening and closing plate 265 is made of resin, and its weight is set to 180 g or less. Thus, by making the opening-and-closing board 265 lightweight, the opening-and-closing board 265 oscillates on the rotating shaft 267 as a support point according to the air volume of the sorting wind from the main tuyere 226 or the 2nd sub-tuber 228. The opening degree of the dust exhaust port 239 is changed.

In detail, the opening-and-closing board 265 will rock and displace to the vicinity of the exhaust fan 230 in the state which the air volume of the main air vent 226 becomes the maximum, and opens the dust exhaust port 239 largely. In this state, when the air volume of the main blowhole 226 gradually decreases, the opening / closing plate 265 slowly swings down with it, and the opening degree of the dust exhaust 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.

Then, when the processed material conveyed toward the dust exhaust port 239 by the sorting wind from the main tuyere 226 or the second sub tuyere 228 touches the opening / closing plate 265, it is dispersed and included in the processed article. Grain having a large specific gravity flows down to the swinging sorting mechanism 225, and a small specific gravity cut straw or rice straw flakes is subjected to the sorting wind, and is discharged through the swing sorting mechanism 225 and the opening and closing plate 265 through the dust exhaust opening 239. From the outside of the gas.

Thereby, generation | occurrence | production of the 3rd loss discharged | emitted out of a gas from the dust discharge port 239 together with the rice straw or rice straw shavings cut off grain can be suppressed effectively.

In addition, in the case where a large amount of sorting processing is performed and a large amount of cut straw or rice straw flakes is scattered in the sorting area, the opening angle of the opening and closing plate 265 is increased by the amount of air blowing air that increases with increasing the sorting throughput. Since the dust exhaust port 239 is greatly opened, the cut straw or rice straw flakes, etc. can be quickly discharged from the dust exhaust port 239 to the outside of the gas.

Thereby, a large quantity of cut rice straw, rice straw flakes, etc. fall to the shaking-separation mechanism 225, and fall of the sorting precision can be prevented.

As shown in FIG. 30, the restricting plate 266 includes a connecting portion 266A bolted to the rear end of the sheave case 231, and an inclined portion 266b inclined backward from the upper end of the connecting portion 266A. It is curved to have. In addition, the restricting plate 266 is bent backwards at both upper and lower ends thereof to secure the strength in the left and right directions in the longitudinal direction. In the connecting portion 266A, a plurality of connecting holes 266C allowing the adjustment of the extension length upward from the sheave case 231 of the regulating plate 266 is formed in three stages above and below.

Then, the restricting plate 266 is formed to have the inclined portion 266b so that the restricting plate 266 is attached to the sheave case 231 so that the extension length from the sheave case 231 to the upper side becomes longer. In addition, even when this restriction plate 266 discharges the rice straw cut by the sorting wind, rice straw waste, etc. from the dust exhaust port 239, it becomes difficult to become resistance.

Thereby, the restriction plate 266 can be attached to the sheave case 231 so that the extension length from the sheave case 231 to the upper part becomes long, and the specific gravity contained in the process material in the regulation plate 266 is carried out. The area which receives this large grain can be largely secured, and generation | occurrence | production of the 3rd loss discharged | emitted out of a gas from the dust discharge port 239 together with the rice straw or rice straw flakes which cut the grain can be suppressed effectively.

In the inclined portion 266b of the regulating plate 266, a plurality of slits 266D which suppress the passage of grains and allow passage of straw chips or the like are arranged at predetermined intervals in the horizontal direction.

Thereby, while making discharge | emission from the dust exhaust port 239, such as rice straw waste, generation | occurrence | production of the 3rd loss which a grain discharges from the dust exhaust port 239 to the exterior of a gas can be suppressed.

The rear end of the sheave case 231 is welded so that three bolts 270 for mounting the regulating plate are extended toward the rear, and the butterfly nuts 271 for mounting the regulating plate are screwed to these bolts 270. .

That is, the restricting plate 266 can adjust the extension length upward from the sheave case 231 in three steps by releasing the connection by the butterfly nut 271. Thereby, adjustment of the extension length upward from the sheave case 231 of the restricting plate 266 according to a grain amount, a kind of grain, etc. can be performed easily. In addition, replacement of the regulating plate 266 according to the kind of grain and the like can also be easily performed.

In addition, each of the connection holes 266C may be formed as a long hole extending in the vertical direction, so that the adjustment of the extension length from the sheave case 231 of the restricting plate 266 upward can be performed steplessly. In addition, in this embodiment, although the structure which uses together the opening and closing board 265 and the regulation board 266 was illustrated, you may comprise so that only one may be used.

As shown in Figs. 17 and 31, behind the clamping conveyance mechanism 206, a straw is formed along the guide lever 272 and the guide lever 272 to receive the harvested grain stand (straw straw discharge) after threshing treatment. The straw discharge conveying apparatus 273 which conveys discharge toward the rice straw discharge processing part (not shown) of the back is arrange | positioned.

The straw discharge conveying apparatus 273 is equipped with the lower case 201 so that the up-and-down oscillation which made the supporting point 274 the horizontal support shaft 274 provided in the back part side possible is possible. The upper case 202 is provided with the stopper 275 which prevents the up-down oscillation of the straw discharge conveying apparatus 273 when the upper case 202 is switched to a closed position.

Thus, when straw discharge is blocked between the guide lever 272 and the straw discharge conveying apparatus 273, the straw case is switched to the open position, and the straw is discharged by the reaction force from the blocked grain stand. The conveying apparatus 273 oscillates with the support shaft 274 as a support point. As a result, the straw discharge which is clogged between the guide lever 272 and the rice straw discharge conveying apparatus 273 can be easily removed.

In addition, reference numeral 276 in FIG. 31 denotes a fixed guide provided in the lower case 201, and reference numeral 277 in FIG. 31 denotes a guide rail provided in the straw discharge conveying apparatus 273. The swing which made the support shaft 274 of the rice straw discharge conveyance apparatus 273 the support point is performed stably.

Although not shown, the main tuyere 226 is operated by an electric transmission mechanism for changing the rotational drive speed of the main tuyere 226 by the control operation of the control device based on the detection of the throughput sensor 264. By controlling, it is comprised so that the sorting wind volume may increase when there is much sorting processing volume, and the sorting wind volume may become small when there is little sorting processing amount.

Moreover, you may comprise so that adjustment of the selection | selection air volume from the main air vent 226 may be performed by artificial operation. Moreover, even if it is comprised so that adjustment of the selection air volume from the main tuyere 226 may be performed by opening degree adjustment of the opening provided in the cover which covers the main tuyere 226, not a change of the rotation drive speed of the main tuyere 226. good.

[Other Embodiments of the Third Embodiment]

[1] The threshing apparatus is not limited to a combine-harvester, but may be mounted on a harvester. In addition, the 1st sub air vent 227 and the 2nd sub air vent 228 may not be provided.

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

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

[4] As shown in Fig. 33, each of the plate members 248 and 249 constituting the guide plate 247 is made of a resin which can be elastically deformed, such as a rubber plate, and a plurality of instead of the plurality of recesses 248B and 249B. Slits 248D and 249D may be formed. According to this structure, the flow of the grain from each recessed part 248B, 249B to the root side of a harvesting grain stand which may arise when the some recessed part 248B, 249B is formed in each board body 248, 249 is provided. You can stop the fall.

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

[6] As shown in Fig. 34, as the plate bodies 248 and 249 constituting the guide plate 247, the rear end edge 248A of the front plate body 248 to be opposed to the plate plate 249 on the rear side is shown. May be formed such that the front edges 249A of the edges become inclined edges located laterally, respectively. With such a configuration, it is possible to more reliably avoid the introduction of the driven side of the harvesting grain table conveyed by the sandwiching support conveyance mechanism 206 between the adjacent plate bodies 248 and 249, resulting from the pulling in. The disturbance of the conveyance blockage of the harvesting grain stand and the conveyance posture (threshing posture) of the harvesting grain stand can be suppressed effectively, and the fall of threshing performance by the disturbance of the conveyance blockage and the conveyance posture, etc. can be prevented effectively.

[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 part
11: Threshing Feed Chain
12: Class room
14: sudden
20: straw discharge conveying device
21: stepless rotating chain
22: conveying guide lever
30: sorting unit
31: swinging screening device
40: dust exhaust unit
50: straw discharge treatment device

Claims (5)

A cover plate having a plurality of inspection openings formed in a state adjacent to each other on the peripheral wall of the barrel, and a plurality of cover portions respectively closing and acting on the plurality of inspection openings;
On the cover plate, a downstream end portion overlapping the peripheral wall outer surface of the barrel drum on the downstream side of the drum drum rotation direction than the inspection opening, and a peripheral wall outer surface of the barrel drum on the drum drum rotation direction upstream side than the inspection opening. Having an upstream end portion that overlaps,
A threshing barrel in which the length in the barrel drum rotation direction of the downstream end is set larger than the length in the barrel drum rotation direction of the upstream end. The method according to claim 1, wherein in the intermediate portion of the circumferential wall in the direction of the rotational drum rotation axis, the two circumferences of the circumferential wall are close to the two inspection openings in a state of being fitted in two inspection openings arranged in the direction of the axial drum rotation axis. Reinforcing ribs are provided in two positions to protrude to the outer surface side of the circumferential wall in the drum circumferential direction,
Threshing barrel which protrudes toward the outer surface side of the said cover plate so that the said cover plate may cover the said reinforcement rib from the outside. The threshing barrel of Claim 2 in which the said heavy reinforcement rib is parted by the said inspection opening in the rotational drum rotation direction. The protruding end reinforcing rib of any one of Claims 1-3 which protrudes to the outer surface side of the said circumferential wall to both ends of the said circumferential wall located outside the said several inspection opening in the direction of a rotating drum rotation axis. Threshing barrel which is installed in the direction of a circumferential drum. The space | interval of the shaft center of the connecting bolt which connects the said downstream end part with the said circumferential wall, and the edge part of the downstream side of the barrel in the rotational drum rotation direction of the said downstream end are the said, Threshing barrel which is set larger than the space | interval of the shaft center of the connecting bolt which connects an upstream end part to the said circumferential wall, and the edge part of the upstream side of the barrel drum rotation direction of the said upstream end part.

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