CN103283413B - Sheller unit - Google Patents

Abstract

The invention discloses a kind of sheller unit (1) of combine, improve the guided plate (25) guided to threshing cylinder (9) by the grain under the root effluent to receipts harvested cereal culm, and the grain under the root effluent to receipts harvested cereal culm can be guided to threshing cylinder (9) more reliably.The inner side of the rotational trajectory (K) that the top that the end that guided plate (25) is formed as its threshing cylinder side enters into threshing tooth (26) is drawn, and on the end of the threshing cylinder side of guided plate (25), be provided with the threshing tooth passage (31) or (32) that allow threshing tooth (26) to pass through.

Description

Sheller unit

The application is the divisional application of earlier application (applying date: on October 30th, 2007, application number: 200710185152.3, denomination of invention: sheller unit).

Technical field

The present invention relates to a kind of sheller unit (Threshing Apparatus) be mounted on combine.Specifically, the present invention relates to following sheller unit, namely have root side conveying that clamping receives harvested cereal culm receive harvested cereal culm gripping conveyor structure, the fringe head side of the receipts harvested cereal culm carried by above-mentioned gripping conveyor structure is implemented threshing process threshing cylinder, by the rotation along with above-mentioned threshing cylinder to the guided plate that the grain under the root effluent receiving harvested cereal culm guides to above-mentioned threshing cylinder.

Background technology

Rotation along with threshing cylinder guides to the grain under the root effluent of receipts harvested cereal culm to threshing cylinder by above-mentioned guided plate, prevent this grain from entering the root side i.e. generation of " card grain (さ さ り grain) " of the receipts harvested cereal culm carried by gripping conveyor structure thus, and avoid grain to discharge together with the receipts harvested cereal culm after threshing process in advance.

In the past, in sheller unit, disclose following structure, namely guided plate (card grain prevents body) is formed by multiple plates of independent-lifting, described guided plate is configured to move up and down accordingly with the paddy stalk being supplied to threshing mouth and exerted a force downwards, and its top abuts with the threshing oralia of lower side or close when dropping to bottom, further, the end of the throughput direction upstream side of described guided plate is formed as being located top (such as with reference to Japanese Unexamined Patent Publication 2006-14604 publication (JP2006-014604A)) the closer to throughput direction upstream side.

In the above-described configuration, owing to being formed with paddy stalk guide portion in the throughput direction upstream-side-end of guided plate, if so will be transported to the plate place of the side, throughput direction most upstream being positioned at guided plate by the receipts harvested cereal culm of gripping conveyor structure clamping conveying, then this plate is successfully raised to the conveying of receiving and harvested cereal culm allowing to receive harvested cereal culm under the effect of paddy stalk guide portion.

Summary of the invention

The object of the present invention is to provide a kind of sheller unit, this sheller unit improves such guided plate, and can the rotation along with threshing cylinder be guided to the grain under the root effluent of receipts harvested cereal culm to threshing cylinder more reliably.

To achieve these goals, the present invention is configured to feature with following.That is, a sheller unit, has: gripping conveyor structure, and receipts harvested cereal culm is carried in the root side that harvested cereal culm is received in clamping; Threshing cylinder, carries out threshing process to the fringe head side of the receipts harvested cereal culm carried by above-mentioned gripping conveyor structure; Guided plate, guides the rotation along with above-mentioned threshing cylinder to above-mentioned threshing cylinder to the grain under the root effluent of receipts harvested cereal culm, it is characterized in that,

The inner side of the rotational trajectory that the top that the end that above-mentioned guided plate is formed as its threshing cylinder side enters into the threshing tooth of above-mentioned threshing cylinder is drawn, and on the end of the threshing cylinder side of above-mentioned guided plate, be provided with the threshing tooth passage allowing above-mentioned threshing tooth to pass through.

According to this structural feature, extended in the rotational trajectory on threshing tooth top by the top of the threshing cylinder side of guided plate, and by guided plate, the rotation along with threshing cylinder can be guided to threshing cylinder more reliably to the grain under the root effluent of receipts harvested cereal culm.Although owing to extend in rotational trajectory but to define threshing tooth passage on guided plate, so the breakage caused because of guided plate and threshing interference of tooth can not be caused.Thus, more effectively can prevent the generation of card grain, the generation of the unfavorable condition that can prevent the grain entering into the root side of receiving harvested cereal culm from discharging together with the receipts harvested cereal culm after threshing process more reliably.

Therefore, the decline of the grain organic efficiency caused because of card grain can more effectively be prevented.

Above-mentioned threshing tooth passage such as by forming at the slit of the open-ended formation of threshing cylinder side or recess on above-mentioned guided plate.

In a preferred embodiment, it is characterized in that, above-mentioned guided plate is made up of multiple plate body, described plate body is being arranged by the throughput direction of the position above the receipts harvested cereal culm of above-mentioned gripping conveyor structure conveying along above-mentioned receipts harvested cereal culm, and be formed with paddy stalk guide portion in the end of the throughput direction upstream side of the above-mentioned receipts harvested cereal culm of above-mentioned each plate body, this paddy stalk guide portion is located top the closer to this throughput direction upstream side, guides by the receipts harvested cereal culm of above-mentioned gripping conveyor structure conveying downwards.

This formation has the following advantages.

In the formation of JP2006-014604A, owing to the plate except the plate except side, throughput direction most upstream not being formed paddy stalk guide portion, if so this receipts harvested cereal culm to be transported to the plate place being positioned at rear than the plate of side, throughput direction most upstream, then receive harvested cereal culm and easily hang over the throughput direction upstream side ora terminalis of each plate, easily cause the conveying of the receipts harvested cereal culm caused because this tangles to block or the problem such as the threshing performance reduction that causes because of the confusion of the conveying posture (threshing posture) of receiving harvested cereal culm.

In contrast, according to this formation, if will be transported to each plate body place of guided plate by the receipts harvested cereal culm of gripping conveyor structure clamping conveying, then these each plate bodys will be directed to the below of each plate body swimmingly by receiving harvested cereal culm and will allow to receive the conveying of harvested cereal culm under the effect of paddy stalk guide portion.Therefore, even if in conveyance direction downstream side, receive the ora terminalis that harvested cereal culm also can not hang over the throughput direction upstream side of each plate body.Therefore, the reduction etc. of the threshing performance conveying blocking because this tangles the receipts harvested cereal culm caused can avoided in advance or cause because of the confusion of the conveying posture (threshing posture) of receiving harvested cereal culm in the roughly length range of guided plate.

And, cause guided plate to be out of shape to be blocked in due to handled thing between threshing cylinder and guided plate etc. or damaged time, without the need to changing whole guided plate, and by changing its distortion or the plate body at position that damages can solve.

Therefore, not only can carry out the process for the distortion of guided plate or breakage etc. economically, and can prevent the grain organic efficiency caused by card grain from reducing, and the harvesting conveying blocking of grain or the reduction etc. of threshing performance can not be caused.

And then, in a preferred embodiment, it is characterized in that, pressing plate is set, described pressing plate be attached at together with above-mentioned guided plate link above-mentioned guided plate guided plate linking part on and the top of above-mentioned guided plate is pushed to above-mentioned guided plate linking part, be attached at by above-mentioned pressing plate under the state on above-mentioned guided plate linking part, pressing plate top and above-mentioned guided plate linking part abut and are formed as the state on the top covering above-mentioned guided plate from top.

This formation has the following advantages.

According to this structural feature, because pressing plate protection guided plate is not by the impact of the handled thing flowed down to guided plate, so the wearing and tearing of the guided plate caused owing to contacting with handled thing can be prevented, thus improve the durability of guided plate.

In addition, can prevent the part cutting off straw etc. from entering between guided plate linking part and guided plate or between guided plate and pressing plate, thus, can stop and make cut-out straw etc. become the state of tangling and the danger that has a negative impact to threshing process because this enters.

Therefore, the durability of guided plate can be improved, the reduction of the threshing handling property caused because of the equipment of guided plate can be prevented simultaneously.

In a preferred embodiment, it is characterized in that, there is undertaking net, this undertaking net is formed deviously along the periphery of above-mentioned threshing cylinder and is configured to cover from below the lower side of above-mentioned threshing cylinder, in the frame portion being positioned at the direction of rotation downstream of above-mentioned threshing cylinder that above-mentioned undertaking is netted, be formed with the hole of leaking down allowing the handled thing obtained by the threshing process utilizing the rotation of above-mentioned threshing cylinder to carry out to leak down.

Or, it is characterized in that, there is undertaking net, this undertaking net is formed deviously along the periphery of above-mentioned threshing cylinder and is configured to cover from below the lower side of above-mentioned threshing cylinder, in the threshing chamber forming member in direction of rotation downstream being configured in above-mentioned threshing cylinder relative to above-mentioned undertaking net, be formed with the hole of leaking down allowing the handled thing obtained by the threshing process utilizing the rotation of above-mentioned threshing cylinder to carry out to leak down.

These formations have the following advantages.

In the past, handled thing as the sheller unit making the handled thing obtained by the threshing process utilizing the rotation of threshing cylinder to carry out leak down leaks down structure, there is following structure, namely on the steel plate being equipped with multiple eyelet, form undertaking net by Screw fixed bearing frame or metal frame, and make the handled thing obtained by threshing process from the eyelet of the mesh netted as this undertaking, leak down (such as with reference to Japanese Unexamined Patent Publication 2000-92971 publication (JP2000-092971A) (paragraph 0015 ~ 0016, Fig. 1 ~ Fig. 5)).

In addition, there is following structure, the cross section being about to have as linearity steel is the 1st steel and the 2nd steel of roughly コ font, cross section is circular bar-shaped steel, 1st wire steel and the 2nd wire steel, and the 1st parts ~ the 5th parts to have as arc-shaped parts are arranged side by side with set arrangement, and weld each bonding part, form cancellate undertaking net thus, and the mesh making the handled thing obtained by threshing process net from this undertaking leaks down (such as with reference to Japanese Unexamined Patent Publication 2001-61333 publication (JP2001-061333A) (paragraph 0017 ~ 0019, Fig. 1 ~ 12)).

In recent years, the treating capacity of unit interval is made to have the tendency of increase due to the high speed of operation.Therefore, need to strengthen the area that leaks down accepting net, and promote leaking down of the handled thing obtained by the threshing process utilizing the rotation of threshing cylinder to carry out, but because the configuration space accepting net is also restricted, so be difficult to strengthen undertaking net to guarantee larger the leak down area corresponding with the high speed of operation.

Its result is, along with the development of the high speed of operation, even if due to singulate but cannot leak down from undertaking net and bear the threshing process undertaken by the rotation of threshing cylinder, so easily produce the unfavorable condition of grain damage.

Therefore, in order to prevent the bad damage that causes and do not strengthen undertaking net of leaking down because of singulate grain, feature is configured to arbitrarily with above-mentioned.These formations have the following advantages.

First, if form hole of leaking down in the frame portion being positioned at the direction of rotation downstream of above-mentioned threshing cylinder that above-mentioned undertaking is netted, this hole of leaking down allows leaking down of the handled thing obtained by the threshing process utilizing the rotation of above-mentioned threshing cylinder to carry out, the handled thing then obtained by the threshing process utilizing the rotation of threshing cylinder to carry out not only leaks down from the mesh accepting net, also leaks down from the hole of leaking down be formed in the frame portion being positioned at the direction of rotation downstream of threshing cylinder of accepting net.That is, undertaking net can not be strengthened and increase the area that leaks down, thus leaking down of handled thing can be promoted.

And, due to the rotation that is formed in hole of leaking down along with threshing cylinder, handled thing kicked up and easily become the undertaking net of disperse state, be positioned in the frame portion in the direction of rotation downstream of threshing cylinder, instead of be formed in that handled thing easily becomes the threshing cylinder of the undertaking net of stacking states be positioned in the frame portion of direction of rotation upper side, therefore, can promote that grain such in handled thing leaks down from hole of leaking down especially, namely due to cut-out straw or straw bits etc. compared with quality comparation large, and be easily subject to the singulate grain of the impact of the centrifugal force produced based on rotating together with threshing cylinder.

Therefore; large the leak down area corresponding with the high speed of operation can be guaranteed; and accept net without the need to strengthening; thus; the treating capacity that can realize with the high speed of operation increases; and can promote leaking down of singulate grain, can prevent by the bad damage etc. caused of leaking down of singulate grain, result can improve the recovering effect of singulate grain and improve the quality of grain.

Especially, by promoting to leak down in the leak down hole of singulate grain from the frame portion being formed in the threshing cylinder direction of rotation downstream of accepting net, when threshing process, receiving in the head feeding type combined harvester (culm head discharging type combine-harvester) of the root side of harvested cereal culm by gripping conveyor structure clamping conveying, the generation of so-called card grain can be suppressed, namely, not from accept singulate grain that net leaks down along with the rotation of threshing cylinder to the root effluent receiving harvested cereal culm, and be discharged to outside machine with the state being scattered in the root side of receiving harvested cereal culm together with the receipts harvested cereal culm after threshing process, result can improve the organic efficiency of singulate grain more effectively.

On the other hand, if form hole of leaking down in the threshing chamber forming member in direction of rotation downstream being configured in above-mentioned threshing cylinder relative to above-mentioned undertaking net, this hole of leaking down allows leaking down of the handled thing obtained by the threshing process utilizing the rotation of above-mentioned threshing cylinder to carry out, the handled thing then obtained by the threshing process utilizing the rotation of threshing cylinder to carry out not only is leaked down from the mesh accepting net, also leaks down from the hole of leaking down be formed in threshing chamber forming member.In addition, the issuable reduction accepting the intensity of net when can avoid being formed with hole in the frame portion of accepting net.That is, area can be strengthened and without the need to strengthening the intensity reduction accepted net and can't cause accepting net, leaking down of handled thing can be promoted.

And; relative to the rotation along with threshing cylinder, handled thing kicked up due to hole of leaking down is formed in and easily becomes the undertaking net of disperse state, be positioned in the threshing chamber forming member in the direction of rotation downstream of threshing cylinder; so identical with the situation that hole of leaking down is formed in above-mentioned frame portion; singulate grain leaking down from hole of leaking down such in handled thing can be promoted especially, namely due to the impact cutting off the phase specific mass such as straw or straw bits and comparatively greatly and be easily subject to the centrifugal force produced based on rotating together with threshing cylinder.

Therefore; large the leak down area corresponding with the high speed of operation can be guaranteed; and accept net without the need to strengthening; and the reduction of the intensity accepting net can not be caused; thus, the treating capacity that can realize with the high speed of operation increases, and can promote leaking down of singulate grain; can prevent by the bad damage etc. caused of leaking down of singulate grain, result can improve the recovering effect of singulate grain and improve the quality of grain.

In addition; owing to facilitating singulate grain leaking down from the hole of leaking down be formed in threshing chamber forming member; so identical with the situation forming hole of leaking down in above-mentioned frame portion; the special generation that can suppress card grain in head feeding type combined harvester, result more effectively can improve the organic efficiency of singulate grain.

In addition, if above-mentioned threshing chamber forming member formed removably, then, when threshing chamber forming member is owing to contact with handled thing etc. and to wear and tear, easily threshing chamber forming member can be replaced by new parts.Therefore, in the maintainability that easily can carry out the replacing of threshing chamber forming member is excellent advantageously.

In a preferred embodiment, it is characterized in that, this sheller unit has: discharge straw conveying plant, by annular rotating link chain and conveying guide rod, the threshing from threshing chamber is discharged straw to the clamping conveying of body rear; With the dust discharge path of fan, be arranged on the below of above-mentioned discharge straw conveying plant, to be discharged to outside body by dust exhausting fan by the dust from sorting portion; Wind-force dust discharge path, is arranged on the below in the dust discharge path of above-mentioned band fan, in order to be discharged to outside body by sorting wind by the dust from above-mentioned sorting portion; Dust discharge control volume, opening and closing above-mentioned wind-force dust discharge path; Link gear, get around the dust discharge path of above-mentioned band fan from above-mentioned conveying guide rod and link with above-mentioned dust discharge control volume, by the interlock of the above-mentioned conveying guide rod produced by above-mentioned link gear and dust discharge control volume, when above-mentioned conveying guide rod leaves more than setting interval relative to above-mentioned annular rotating link chain, above-mentioned dust discharge control volume handover operation is for opening posture, when above-mentioned conveying guide rod be positioned at be less than the position of above-mentioned setting interval (D) relative to above-mentioned annular rotating link chain time, above-mentioned dust discharge control volume handover operation is closed posture.

This formation has the following advantages.

In the past, in sheller unit, there is the such as device shown in Japanese Unexamined Patent Publication 4-84825 publication (JP4-084825).

This sheller unit has: the selection by winnowing portion being built-in with sorting unit; The straw that the chaff sieve that should have from sorting unit is discharged considers the dust-exhausting port be discharged to together with sorting wind machine to be worth doing; With on this dust-exhausting port with the dust discharge control panel that the mode of this part of opening and closing is arranged.

Dust discharge control panel, is connected with motion detection mechanism (sense switch) via link gear, motor and control part.The situation that reaping part rises to set non-job position detects in motion detection mechanism.When having carried out reaping part lifting operations by power-control rod and motion detection mechanism becomes detected state, dust discharge control panel, according to the testing result of motion detection mechanism, has automatically carried out wobbling action to the direction closing dust-exhausting port.When reaping part drops to set harvesting position, dust discharge control panel automatically carries out wobbling action to the direction of opening dust-exhausting port.

In the sheller unit with above-mentioned dust discharge control volume; when the handled thing amount in sorting portion is many; because the handled thing quantitative change of the discharge produced in sorting portion is many; so by dust discharge control volume handover operation for opening posture, so that the dust of promptly being discharged by the handled thing of discharging and single treatment thing or after-treatment thing not easily occurring is mixed into.When handled thing amount in sorting portion is few, because handled thing easily disperses by sorting wind, so be closed posture by dust discharge control volume handover operation, so that the loss suppressing or avoid grain to discharge together with sorting wind.

According to above-mentioned existing technology, then the opening and closing automatically can carrying out dust discharge control volume switches.But must have and carry out the actuator of opening and closing operations and the controlling organization of operate actuator and testing agency to dust discharge control volume, operating mechanism has and becomes large tendency.

Therefore, in order to provide a kind of suitable automatic shutter that can be carried out dust discharge control volume by small-scale operating mechanism, and the sheller unit can easily avoiding the bad spot of the action of its operating mechanism to carry out, in a preferred embodiment, with the formation described in technical scheme 7 for feature.This formation has the following advantages.

According to this structural feature, when the handled thing quantitative change in sorting portion is many, automatically handover operation is for opening posture for dust discharge control volume, and when the handled thing quantitative change in sorting portion is few, dust discharge control volume automatically handover operation is closed posture.

That is, when the paddy stalk amount being supplied to threshing chamber increases, from threshing chamber to sorting portion in order to the handled thing amount of carrying out sorting process and supplying increases.Now, the quantitative change that straw is discharged in the threshing of discharging from threshing chamber is many.So the quantitative change of being discharged straw by the threshing of discharging the conveying of straw conveying plant is many, conveying guide rod moves to away from annular rotating link chain side.

When the paddy stalk amount supplying threshing chamber reduces, the handled thing amount minimizing supplied to carry out sorting process from threshing chamber to sorting portion.Now, the quantitative change that straw is discharged in the threshing of discharging from threshing chamber is few.So the quantitative change of being discharged straw by the threshing of discharging the conveying of straw conveying plant is few, conveying guide rod moves to close to annular rotating link chain side.

Thus, if according to the interval variation of discharging along with the threshing of discharging straw conveying plant between the conveying guide rod of the change of the amount of straw and annular rotating link chain, set above-mentioned setting interval aptly, then when the handled thing amount in sorting portion is many, because conveying guide rod and annular rotating link chain leave, and due to the interlock of the conveying guide rod that produced by link gear and dust discharge control volume, dust discharge control volume automatically switches to and opens posture.When the handled thing amount in sorting portion is few, due to conveying guide rod and annular rotating link chain close, and due to the interlock of the conveying guide rod that produced by link gear and dust discharge control volume, dust discharge control volume automatically switches to closed posture.

In addition, as the link gear of operating mechanism dust discharge control volume being carried out to opening and closing operations, become the state in the dust discharge path getting around band fan, be not easily attached on link gear by the dust being with the dust discharge path of fan to discharge.

Thus; change irrelevant with the handled thing amount in sorting portion; dust discharge control volume can handover operation be automatically open posture or closed posture with the handled thing amount in sorting portion is matched; can carry out threshing operations while the grain suppressing the dust of grain to be mixed into or to produce due to wind-force dust discharge path is discharged, and qurer obtains by the small-scale structure only with above-mentioned link gear.And, easily can avoid because of the dust attachment of link gear that the action that causes is bad, also opening and closing can switch dust discharge control volume aptly from the side.

Above-mentioned link gear such as can adopt following formation.

In a preferred embodiment, it is characterized in that, above-mentioned link gear has: rotate universal driving shaft, be horizontally installed on the outside in the dust discharge path of above-mentioned band fan along body with the state linked with above-mentioned conveying guide rod, and by above-mentioned conveying guide rod the movement relative to above-mentioned annular rotating link chain and by rotation process; Linkage, make above-mentioned rotation universal driving shaft relative to above-mentioned discharge straw conveying plant be positioned at the rotation fulcrum of the end of opposition side, threshing feed chain side and above-mentioned dust discharge control volume be positioned at opposition side, threshing feed chain side relative to above-mentioned wind-force dust discharge path and link in the end being positioned at the outside in above-mentioned wind-force dust discharge path.

According to this formation, rotate universal driving shaft and linkage along the periphery in dust discharge path of be with fan, make link gear reliably get around the dust discharge path of band fan, while can pass to dust discharge control volume swimmingly by carrying the action of guide body.

Therefore, can avoid due to the dust attachment of link gear that the action that causes is bad well, the opening and closing simultaneously can carrying out dust discharge control volume swimmingly switches.

In a preferred embodiment, above-mentioned link gear has cam-type linkage portion, this cam-type linkage portion is abutted by the abutting part of cam body and drive disk assembly, make above-mentioned conveying guide rod and the interlock of above-mentioned dust discharge control volume, the side in described cam body and above-mentioned conveying guide rod and above-mentioned dust discharge control volume links; The opposing party in described drive disk assembly and above-mentioned conveying guide rod and above-mentioned dust discharge control volume links.

According to this formation, dust discharge control volume by conveying guide rod relative to annular rotating link chain away from mobile and after switching to and opening posture, increase further if straw amount is discharged in threshing and carry guide rod to carry out away from movement further relative to annular rotating link chain, then absorbed the movement of carrying guide rod by cam body and slidingly contacting of abutting part, the action of conveying guide rod can be made can not to be delivered to dust discharge control volume.

Therefore, even if straw amount abnormal increase is discharged in threshing, also can not apply excessive operating physical force to switching to the dust discharge control volume after opening posture, the generation of distortion or breakage can be avoided.

In a preferred embodiment, above-mentioned link gear has delay device, above-mentioned conveying guide rod move to be positioned at relative to above-mentioned annular rotating link chain the position being less than above-mentioned setting interval time, this delay device makes the closing motion of above-mentioned dust discharge control volume postpone, and switches to closed posture to make above-mentioned dust discharge control volume moving into place from above-mentioned conveying guide rod in being less than the position at above-mentioned setting interval after setting-up time.

According to this formation, reduce even if straw amount is discharged in threshing, dust control volume also can not switch to closed posture immediately, but can switch to closed posture after the actual minimizing of the handled thing amount in sorting portion.

That is, even if the discharge straw of discharging straw conveying plant reduces, the handled thing supplied also remain this minimizing in sorting portion before, the generation that the generation of the handled thing minimizing in sorting portion reduces than the discharge straw of discharging straw conveying plant is late.Thus, if set above-mentioned setting-up time aptly according to this time delay, even if then carry guide rod to move to the position being less than setting interval relative to annular rotating link chain, by the effect of delay device, dust discharge control volume can not handover operation be also closed posture immediately, and dust discharge control volume switches to closed posture after the actual minimizing of the handled thing in sorting portion.

Therefore; reduce even if straw is discharged in the threshing of discharging straw conveying plant; before the actual minimizing of the handled thing amount in sorting portion; dust discharge control volume maintains and opens posture; after the actual minimizing of the handled thing amount in sorting portion; dust discharge control volume handover operation is closed posture, has nothing to do with the change of the paddy stalk amount being supplied to threshing chamber, the grain discharge that the dust of grain can be suppressed accurately to be mixed into and produce due to wind-force dust discharge path.

For other structural feature and the favourable effect that played by this structural feature, read following explanation can become clear and definite by referring to accompanying drawing.

Accompanying drawing explanation

Fig. 1 is the longitudinal cross-sectional side view of the sheller unit of the 1st embodiment;

Fig. 2 is the vertical profile rearview in threshing portion;

Fig. 3 is the vertical profile rearview of the important part of the mounting structure representing guided plate;

Fig. 4 is the end view of the important part of the shape representing guided plate;

Fig. 5 is the end view of the important part representing another embodiment that guided plate is made up of four plate bodys;

Fig. 6 is the figure of the mounting structure of the guided plate representing another embodiment, is the figure corresponding with Fig. 3;

Fig. 7 is the vertical view of the guided plate of Fig. 6;

Fig. 8 is the vertical view of another variation of the guided plate representing Fig. 6;

Fig. 9 is the unitary side view of the head feeding type combined harvester of the sheller unit being equipped with the 2nd embodiment;

Figure 10 is the overall rearview of head feeding type combined harvester;

Figure 11 is the longitudinal cross-sectional side view of sheller unit;

Figure 12 is the vertical profile front view of sheller unit;

Figure 13 is the expansion vertical view of the formation representing the 1st undertaking wet end;

Figure 14 is the expansion vertical view of the formation representing the 2nd undertaking wet end;

Figure 15 is the vertical profile front view of the formation representing the 1st undertaking wet end;

Figure 16 is the rearview of the important part of the formation representing the 1st undertaking wet end;

Figure 17 is the longitudinal cross-sectional side view of the important part of the formation representing threshing chamber forming member;

Figure 18 is the figure of the opening adjusting structure representing the movable part that chaff sieves;

Figure 19 is the longitudinal cross-sectional side view of the important part of the formation of the threshing chamber forming member representing another embodiment;

Figure 20 is the longitudinal cross-sectional side view of the sheller unit of the 3rd embodiment;

Figure 21 (a) is the end view under the closed posture of dust discharge control volume, and (b) is the end view opened under posture of dust discharge control volume;

Figure 22 is the rearview of sheller unit in link gear disposed portion;

Figure 23 is the rearview of the link gear of another embodiment;

The vertical view of Figure 24 (a) delay device that to be dust discharge control volume be under the state opening posture, (b), (c), (d) they are the vertical views of the active state representing delay device;

The end view of Figure 25 (a) delay device that to be dust discharge control volume be under the state opening posture, (b), (c), (d) they are the end views of the active state representing delay device;

Figure 26 is the integral left view of the 4th embodiment;

Figure 27 is the integral left view of crawler travel device;

Figure 28 is the overall vertical view of crawler travel device;

Figure 29 is the end view of the detailed construction representing antihunting device;

Figure 30 is the vertical view of the detailed construction representing antihunting device;

Figure 31 is the end view representing the detailed construction swinging limiting mechanism;

Figure 32 is the vertical view representing the detailed construction swinging limiting mechanism;

Figure 33 is the block diagram of control device;

Figure 34 is the end view representing the travel condition with the crawler travel device swinging limiting mechanism;

Figure 35 is the end view representing the travel condition without the crawler travel device swinging limiting mechanism.

Embodiment

Below, with reference to accompanying drawing the embodiments of the present invention are described according to the head feeding type combined harvester (culm head discharging type combine-harvester) of the example as combine.

In the following description, as long as no different clearly expressions, with body direction of advance for all around and above-below direction are called fore-and-aft direction, left and right directions (or horizontal) and above-below direction by benchmark.

[the 1st embodiment]

First, with reference to Fig. 1 ~ Fig. 8, the 1st embodiment is described.

Fig. 1 represents the vertical profile side of the sheller unit 1 be mounted on head feeding type combined harvester, and Fig. 2 represents its vertical profile back side.This sheller unit 1 is configured to, by the lower case 2 be attached on organism frame (not shown) with can opening and closing swingingly be attached in the process space that the upper body 3 in this lower case 2 formed, have and receive harvested cereal culm C(with reference to Fig. 2 and Fig. 3 towards rear conveying) on one side to receive harvested cereal culm C the execution threshing process of fringe head side threshing portion 4, to the sorting portion 5 of the handled thing execution sorting process obtained by this threshing process and by the recoverer 6 etc. of a thing being obtained by this sorting process and the recovery of secondary thing.

Threshing portion 4 is configured to be had: clamping receive harvested cereal culm C root side and by receive harvested cereal culm C with left and right towards posture carry out carrying gripping conveyor structure 7, by with front and back towards fulcrum 8 to rotate for the left direction of fulcrum in time observing from behind drives and threshing process is implemented to the fringe head side of receiving harvested cereal culm C threshing cylinder 9 and the undertaking net 10 etc. leaked down in the handled thing sorting portion 5 downwards obtained by this threshing process.Be formed at the rear of accepting net 10 and send dirt mouth 11, this send dirt mouth 11 that the handled thing sorting portion 5 downwards of not leaking down from undertaking net 10 is flowed down.

Namely; by the threshing process undertaken by this threshing portion 4; the handled thing that the amount of the grain of singulate grain or band branch stalk etc. is many leaks down from undertaking net 10 to sorting direction upstream side (toe lateral) in sorting portion 5; in addition, the handled thing that the amount of cut-out straw or straw bits etc. is many flows down from the downstream, sorting direction (rear portion side) sending dirt mouth 11 to sorting portion 5.

Sorting portion 5 is configured to have and carries out swinging the swing sorting mechanism 12 of sorting to the handled thing from threshing portion 4 and generate the selection by winnowing fan (winnowing fan) 13 etc. the handled thing from threshing portion 4 being carried out to the sorting wind of pneumatic separating.In addition; by carrying out swing sorting and pneumatic separating to handled thing, the handled thing from threshing portion 4 is divided elect as the singulate grain as a thing, the stalk of the band branch as secondary thing grain or straw bits etc. mixture and as the cut-out straw of three things or straw bits etc.

Recoverer 6 is made up of the first recoverer 14 of below and second recoverer 15 etc. of below that is formed in the downstream, sorting direction swinging sorting mechanism 12 being formed in the sorting direction upstream side swinging sorting mechanism 12.

First recoverer 14 reclaims by sorting portion 5 sorting thing, and by along left and right towards the first screw rod 16 be provided in bottom it, is carried by the thing reclaimed to the square auger of raising outside the figure be connected with its right-hand member.

Second recoverer 15 reclaims the secondary thing by sorting portion 5 sorting, and by along left and right towards the second screw rod 17 be provided in bottom it, the secondary thing reclaimed is reduced screw rod (not having label) to be connected with its right-hand member second and carries.

In addition, raise and send screw rod to raise to send the thing transported by the first screw rod 16, and be supplied in the grain container the figure of the side, right being disposed in parallel in sheller unit 1 from top.Second reduction screw rod, after the secondary thing transported by the second screw rod 17 being implemented to threshing process again, carries out raising sending and reverting to and swings sorting mechanism 12.

As shown in Figure 2 to 4, aulaeum 18 is equipped with at the upper left quarter of lower case 2, top lip of slice 19 is equipped with at the lower left quarter of upper body 3, be formed with threshing mouth 20 between which, this threshing mouth 20 can supply between threshing cylinder 9 and undertaking net 10 the receipts harvested cereal culm C being clamped conveying by gripping conveyor structure 7.

Gripping conveyor structure 7 is formed by with lower component etc.: feeding chain 21, carries the mode of the conveyor surface 21A receiving harvested cereal culm C to be provided in the left side of lower case 2 to have along aulaeum 18; Track platform 22, is equipped on top lip of slice 19; Gripper rail 23, can be bearing in the bottom of this track platform 22 with being shifted up and down; And multiplely press pressing spring 24, gripper rail 23 is applied to the active force declined towards the conveyor surface 21A of feeding chain 21.

Top lip of slice 19 is provided with guided plate 25, and the grain of rotation from the top of threshing cylinder 9 to the root effluent receiving harvested cereal culm C along with threshing cylinder 9 guides to threshing cylinder 9 by this guided plate 25.That is, top lip of slice 19 is also used as the guided plate linking part that the installation that makes guided plate 25 can be carried out.

Guided plate 25 is made up of two plate bodys 25A, 25B, and these two plate bodys are configured in the position of the top being clamped the receipts harvested cereal culm C of conveying by gripping conveyor structure 7 in tandem along the throughput direction receiving harvested cereal culm C.

Two plate bodys 25A, 25B are formed from a resin, their lower end part in the lower edge than top lip of slice 19 near the position of below, and their upper end with sandwich state between top lip of slice 19 and pressing plate 27 together with pressing plate 27 bolt link on the inner surface of top lip of slice 19, the rotational trajectory drawn along with the rotation of threshing cylinder 9 with the top of each threshing tooth 26 had close to threshing cylinder 9.

Paddy stalk guide portion 25a, 25b is formed in the end (front end) of the throughput direction upstream side of the receipts harvested cereal culm C of each plate body 25A, 25B, described paddy stalk guide portion is located this throughput direction upstream side and is located top, and is guided downwards by the receipts harvested cereal culm C carried by gripping conveyor structure 7.In the present embodiment, paddy stalk guide portion 25a, 25b(is formed with reference to Fig. 6 and Fig. 7 by arranging rake on the front upper angle of each plate body 25A, 25B).But, about the shape of paddy stalk guide portion 25a, 25b, as long as be located the shape that throughput direction upstream side is located top, also can be other shapes, such as form fillet etc. at the front upper angle place of each plate body 25A, 25B, also can guarantee below guiding function in this case.

By above formation, along with the grain of rotation from the top of threshing cylinder 9 to the root effluent receiving harvested cereal culm C of threshing cylinder 9 is guided by threshing cylinder 9 by guided plate 25, thus, namely block the generation of grain in the root side of the receipts harvested cereal culm C that can prevent from this grain from entering being carried by gripping conveyor structure 7, and the grain entering the root side of receiving harvested cereal culm C can be prevented together with the receipts harvested cereal culm C after threshing process to be discharged to the generation of the unfavorable condition outside machine.

In addition, cause guided plate 25 to be out of shape when to be blocked in due to handled thing between threshing cylinder 9 and guided plate 25 etc. or breakage, without the need to changing whole guided plate 25, can be solved by plate body 25A, the 25B changing its distortion or damaged part.

And, when the receipts harvested cereal culm C being clamped conveying by gripping conveyor structure 7 is transported to each plate body 25A of guided plate 25, during 25B, then these each plate body 25A, 25B is at paddy stalk guide portion 25a, under the effect of 25b, receipts harvested cereal culm C is directed to each plate body 25A swimmingly, the below of 25B, allow the conveying of being carried out receiving harvested cereal culm C by gripping conveyor structure 7, so receive harvested cereal culm C can not hang over each plate body 25A, on the ora terminalis of the throughput direction upstream side of 25B, thus, the conveying tangling the receipts harvested cereal culm C caused because of this can be avoided in advance to block, or by receiving the confusion of conveying posture (threshing posture) of harvested cereal culm C and the reduction etc. of threshing performance that causes.

Its result is, not only can carry out the process etc. of distortion to guided plate 25 or breakage economically, and can not cause receiving the conveying blocking of harvested cereal culm C or the reduction etc. of threshing performance, can prevent the reduction of the grain organic efficiency caused by card grain.

Pressing plate 27 be bent to form into, be arranged under the state on top lip of slice 19 together with guided plate 25, its upper limb and top lip of slice 19 abut and become the state on the top covering guided plate 25 from top.

That is, because pressing plate 27 protects guided plate 25 not by the impact of the handled thing flowed down to guided plate 25, so the wearing and tearing that guided plate 25 occurs due to the contact with handled thing can be prevented, the durability of guided plate 25 can be improved.

In addition, can prevent the part cutting off straw etc. from entering between top lip of slice 19 and guided plate 25 or between guided plate 25 and pressing plate 27, thus, can prevent cutting off straw etc. becomes the state of tangling consequently to threshing process generation harmful effect because this enters.

The outer surface of top lip of slice 19 is provided with cover 30, and this cover 30 covers the bolt 28 and nut 29 installed towards the guided plate that gripper rail 23 is outstanding from left lateral outer side.The bottom surface 30A of this cover 30 is formed as the inclined plane being located top the closer to left-external side.

By this formation, by the rotation of threshing cylinder 9, along with the receipts harvested cereal culm C being clamped conveying by gripping conveyor structure 7 is drawn in by threshing cylinder 9, the gripper rail 23 of gripping conveyor structure 7 is shifted to threshing cylinder 9, even if like this, depress at the bar of the receipts harvested cereal culm C being clamped conveying by gripping conveyor structure 7, overcome by the active force of pressing spring 24 and lift gripper rail 23, now, by the bottom surface 30A of cover 30, gripper rail 23 is guided to the bolt 28 and nut 29 position left of lateral outer side to the left installed from guided plate.

Thus, with gripper rail 23 is configured in from top lip of slice 19 left foreign side away from position so that compared with the situation that the bolt 28 installed with guided plate or nut 29 can be avoided to contact, space can be saved, simultaneously the conveying of the receipts harvested cereal culm C in gripping conveyor structure 7 can be avoided in advance block, this conveying blocking hangs over caused by the rising bolt 28 or nut 29 that guided plate installs limiting gripper rail 23 is shifted due to gripper rail 23.

[other embodiments]

[1] number of above-mentioned guided plate 25 is not limited to above-mentioned two.

Such as shown in Figure 5, guided plate 25 can be formed by arranging along the throughput direction receiving harvested cereal culm C four the plate body 25A ~ 25D be equipped with.Or, although not shown, but guided plate 25 can be formed by the plate body arranging three plate bodys or more than five be equipped with along the throughput direction receiving harvested cereal culm C.

In the above-described configuration, paddy stalk guide portion 25a, 25b etc. are formed in the end of the throughput direction upstream side of the receipts harvested cereal culm C of each plate body, described paddy stalk guide portion is located this throughput direction upstream side and is located top, the receipts harvested cereal culm C carried is guided downwards by gripping conveyor structure 7.

[2] in addition, as shown in Figure 6, the mode making guided plate 25 enter the inner side of the rotational trajectory K on threshing tooth 26 top with the end of its threshing cylinder side extends to threshing cylinder side, and arranging the threshing tooth passage allowing threshing tooth 26 to pass through on the end of this threshing cylinder side, is so also favourable.Below represent two concrete examples.

A () in the example depicted in fig. 7, plate body 25A, 25B that guided plate 25 is made by the material (resin) of the elastically deformables such as rubber slab are formed, further, the inner side of the rotational trajectory K that the top that the end of its threshing cylinder side is formed as entering into the threshing tooth 26 that threshing cylinder 9 has is drawn along with the rotation of threshing cylinder 9.And, on the end of the threshing cylinder side of plate body 25A, 25B, be formed with slit (slits) (threshing tooth passage an example) 31 at threshing cylinder side opening, this slit 31 becomes open state by elastic deformation from closed condition thus allows threshing tooth 26 to pass through.

In the above-described configuration, more reliably the rotation along with threshing cylinder 9 can be guided to threshing cylinder 9 to the grain under the root effluent receiving harvested cereal culm C by guided plate 25, and the breakage that produces due to guided plate 25 and the interference of threshing tooth 26 can not be caused.Its result is, more effectively can prevent the generation of card grain, the generation of the unfavorable condition that can more reliably prevent the grain entering into the root side of receiving harvested cereal culm C to be discharged together with the receipts harvested cereal culm C after threshing process.

After threshing tooth 26 passes through, each slit 31 to closed condition, can prevent grain from each slit 31 by the elastic recovery of guided plate 25 to the root effluent receiving harvested cereal culm thus.

(b) in the example depicted in fig. 8, the inner side of the rotational trajectory K that the top that the end that guided plate 25 is formed as its threshing cylinder side relatively shallowly enters the threshing tooth 26 that threshing cylinder 9 has is drawn along with the rotation of threshing cylinder 9.Further, on the end of this threshing cylinder side, the recess (rounded recesses) (example of threshing tooth passage) 32 of the R shape allowing the top of threshing tooth 26 to pass through relatively shallowly is formed with at threshing cylinder side opening.

In the above-described configuration, more reliably the rotation along with threshing cylinder 9 is guided to threshing cylinder 9 to the grain under the root effluent receiving harvested cereal culm C by guided plate 25, and the wearing and tearing that caused by the interference of guided plate 25 and threshing tooth 26 or breakage can not be caused.Its result is, more effectively can prevent the generation of card grain, and the unfavorable condition that the grain entering into the root side of receiving harvested cereal culm C can be prevented more reliably to be discharged together with the receipts harvested cereal culm C after threshing process occurs.

For the shape of each recess 32, can be formed as such as with the shape shape closely on the top of threshing tooth 26 (being R shape (rounded) in the example in figure 7).Thus, the space between recess 32, threshing tooth 26 is necessary Min., grain can be suppressed from this space to the root effluent of receipts harvested cereal culm.For this purpose, the inner side of the rotational trajectory K preferably making the roughly overall top being positioned at threshing tooth 26 of each recess 32 draw.

[3] for the material of guided plate 25, be not particularly limited to.Such as can be made up of multiple plate bodys of sheet metal etc.Or also can form each plate body by the material of the material of elastically deformable or not elastically deformable.

In addition, in above-mentioned other embodiment [2] (a), preferably form guided plate 25 by the material (rubber slab etc.) of elastically deformable, but be not particularly limited in remaining embodiment.

[the 2nd embodiment]

Then, with reference to Fig. 9 ~ Figure 19, the 2nd embodiment is described.

Fig. 9 represents the overall side of head feeding type combined harvester, Figure 10 represents its overall back side, and this combine comprises: by the harvesting delivery section 103 that cornue material etc. is formed as the organism frame 101 of frame-shaped, the crawler-tread 102 being equipped in the pair of right and left of the bottom of base frame 101, liftable are swingingly attached at left front portion, be mounted in left side sheller unit 104, be mounted in right back portion sack-filling device 105, be formed in the running portion 106 of taking of right front portion and be mounted in the engine 107 etc. of right front portion.

The crawler-tread 102 of left and right is by the power drive come via main transformer speed variator (not shown) or secondary speed-changing device (not shown) etc. transmission from engine 107, according to taking the operation of the main shift lever 108 or secondary gear lever 109 had in running portion 106 and speed change, under its driving condition, according to the swinging operation in the lateral direction of control stick 110 of taking the shuttle-type neutral reply type of the cross had in running portion 106, the craspedodrome state that crawler-tread in left and right is driven by constant speed, and switch between the revolution travel condition that the crawler-tread of left and right is differential.

Power from engine 107 is passed to harvesting delivery section 103 via main transformer speed variator or harvesting clutch (not shown) etc., under its operating state, along with advancing of body, be arranged in multiple distributors 111 on top while namely results object is planted paddy stalk at each plantation bar comb point while comb, plantation paddy stalk pull-up after itemize is set harvesting posture by multiple heaving mechanism 112, the root side of the plantation paddy stalk that reaping apparatus 113 cutting of hairclipper type is pulled up, stalks conveying apparatus 114 changes into the posture of laying across of threshing while carry to sheller unit 104 while namely the plantation paddy stalk after cutting is received harvested cereal culm from the posture that erects of harvesting.

In addition, according to the swinging operation in front-rear direction of control stick 110, the hydraulic up-down cylinder (not shown) be erected in organism frame 101 and harvesting delivery section 103 carries out expanding-contracting action, thus around left and right towards fulcrum (not shown) carry out lifting and swinging.

As is illustrated by figs. 11 and 12, sheller unit 104 is configured to have with lower component etc.: threshing portion 117, by the lower case 115 be attached on organism frame 101 with can opening and closing swingingly be attached in the process space that the upper body 116 in this lower case 115 formed, rearward conveying receives harvested cereal culm on one side to the fringe head side execution threshing process of receipts harvested cereal culm; Sorting portion 118, carries out sorting process to the handled thing obtained by this threshing process; And recoverer 119, reclaim the thing and secondary thing that are obtained by this sorting process.

Threshing portion 117 is configured to have with lower component etc.: gripping conveyor structure 120, clamping receive harvested cereal culm root side and with left and right towards posture conveying receive harvested cereal culm; Threshing cylinder 9, by with front and back towards fulcrum 121 rotate for fulcrum drives to right when observing from front and threshing process implemented to the fringe head side of receiving harvested cereal culm; And accept net 123, leaked down in the handled thing sorting portion 118 downwards obtained by this threshing process.Be formed and make not send dirt mouth 124 from what accept that handled thing sorting portion 118 downwards that net 123 leaks down flows down accepting the rear of net 123.

Namely; by the threshing process in this threshing portion 117; the handled thing that the amount of the grain of singulate grain or band branch stalk etc. is many leaks down from undertaking net 123 to sorting direction upstream side (toe lateral) in sorting portion 118; in addition, the handled thing that the amount of cut-out straw or straw bits etc. is many flows down from the downstream, sorting direction (rear portion side) sending dirt mouth 124 to sorting portion 118.

Sorting portion 118 is configured to have and carries out swinging the swing sorting mechanism 125 of sorting to the handled thing from threshing portion 117 and generate the selection by winnowing fan 126 etc. of the sorting wind handled thing from threshing portion 117 being carried out to pneumatic separating.In addition; by carrying out swing sorting and pneumatic separating to handled thing, the handled thing from threshing portion 117 can be divided and electing the singulate grain as a thing, the mixture of the stalk of the band branch as secondary thing grain or straw bits etc. and the dust as the cut-out straw of three things or straw bits etc. as.

Recoverer 119 comprises the first recoverer 127 of the below being formed in the sorting direction upstream side swinging sorting mechanism 125 and is formed in second recoverer 128 etc. of below in the downstream, sorting direction swinging sorting mechanism 125.

First recoverer 127 reclaims by sorting portion 118 sorting thing, and by along left and right towards the first screw rod 129 be provided in bottom it, send screw rod 131(reference Figure 10 by the thing reclaimed to raising of being connected with its right-hand member) carry.

Second recoverer 128 reclaims the secondary thing by sorting portion 118 sorting, and by along left and right towards the second screw rod 130 be provided in bottom it, the secondary thing of recovery is reduced screw rod 132 to be connected with its right-hand member second and carries.

As shown in Figure 10 and Figure 11, raise and send screw rod 131 to raise to send the thing transported by the first screw rod 129, and be supplied in the grain storage part 133 of the sack-filling device 105 of the right side side being disposed in parallel in sheller unit 101.Second reduction screw rod 132, after implementing threshing process again to the secondary thing transported by the second screw rod 130, is raised and is sent and revert to swing sorting mechanism 125.

As is illustrated by figs. 11 and 12, threshing cylinder 9 is configured to have the multiple threshing tooths 135 etc. be bent to form as substantially V-shaped on the peripheral part of the threshing cylinder main body 134 being formed as cylindrical shape.

As shown in Figure 11 ~ Figure 16, accept net 123 to be formed as bending along the periphery of threshing cylinder 9, and be configured to two parts segmenting structure, the 1st the 2nd undertaking wet end 137 accepted wet end 136 and configure in the mode of the lower side of the direction of rotation upstream side covering threshing cylinder from below that the mode that namely can be divided into the lower side in the direction of rotation downstream covering threshing cylinder 9 from below configures.

Each undertaking wet end 136,137 is formed as clathrate by with lower component: multiple and multiple curved plates 138,139, is set up in parallel on the direction along fulcrum 121 with the posture that the fulcrum 121 with threshing cylinder 9 is orthogonal; With multiple and multiple straight line steel 140,141, be set up in parallel with the periphery of the posture of the fulcrum 121 along threshing cylinder 9 along threshing cylinder 9.

In each undertaking wet end 136,137, set bending part 138A, 138B, 139A, 139B are formed as larger than other bending part, play a role using the ribs making their both ends be roughly straight line steel 140A, 140B, 141A, 141B of コ font as the cross section strengthening being positioned at the two ends of the threshing cylinder direction of rotation of each undertaking wet end 136,137.

Accept in wet end 136 the 1st, the net of lines material 140B being positioned at the abutting end place of accepting wet end 137 with the 2nd is equipped with connecting hole 143, two engaging protrusion 142 snap in this connecting hole 143, and from be positioned at the 2nd accept wet end 137 to accept wet end 136 to the 1st projecting with the 1st straight line steel 141A accepting the abutting end of wet end 136.

That is the 1st accept on the straight line steel 140A of wet end 136 at the frame portion 123A being positioned at the direction of rotation downstream of threshing cylinder 9 accepting net 123, the multiple substantially rectangular hole 144 of leaking down that the handled thing obtained by the threshing process utilizing the rotation of threshing cylinder 9 to carry out is leaked down is allowed to be formed as follows, namely on the length direction of straight line steel 140A, with the state left from the end of set bending part 138A, 138B, 139A, 139B, arranged side by side with set spacing.

As shown in Figure 12 and Figure 17, in threshing portion 117, relative to the direction of rotation downstream of threshing cylinder 9 of accepting net 123, the direction of the fulcrum 121 along threshing cylinder 9 is arranged in parallel with given pitch and multiplely cuts stalk cutter 145.

Respectively cut the コ font that stalk cutter 145 is formed as having a leg-of-mutton tool setting portion 145A, bolt link is on the support unit 148 of the sheet metal of the front and rear wall 146,147 in leap threshing portion 117 removably.

Support unit 148 threaded connection is removably on the front and rear wall 146,147 forming threshing chamber, and in its underpart, bolt link has the threshing chamber forming member 149 forming the sheet metal of threshing chamber together with undertaking net 123, front and rear wall 146,147 and support unit 148 etc. removably.

Threshing chamber forming member 149 is being formed from support unit 148 to the gamut accepting net 123, thus, not can will not guide to multiple stalk cutter 145 of cutting from accepting the handled thing that net 123 leaks down, can utilize and multiplely cut the cut-out straw that stalk cutter 145 shreds length contained in this handled thing.

Be welded with the support unit 150 of sheet metal in the bottom of threshing chamber forming member 149, this support unit 150 gear meets the frame portion 123A being positioned at the direction of rotation downstream of threshing cylinder 9 that net 123 is accepted in supporting.In addition, in threshing chamber forming member 149 boot process thing guide surface (face opposed with threshing cylinder 9) on, allow the multiple substantially rectangular hole 151 of leaking down of leaking down of the handled thing obtained by the threshing process utilizing the rotation of threshing cylinder 9 to carry out to be formed side by side with set spacing on the length direction of threshing chamber forming member 149.

According to above-mentioned formation, the handled thing obtained by the threshing process utilizing the rotation of threshing cylinder 9 to carry out not only leaks down from the mesh accepting net 123, also leaks down from hole 144,151 of respectively leaking down.That is, can increase leak down area and accept net 123 without the need to strengthening, thus leaking down of handled thing can be promoted.

And, due to by hole 144 of respectively leaking down, 151 are formed in and accept net 123, handled thing of easily kicking up makes handled thing become disperse state along with the rotation of threshing cylinder 9, the frame portion 123A(the 1st being positioned at threshing cylinder direction of rotation downstream accepts the straight line steel 140A of wet end 136), or accept in the threshing chamber forming member 149 being positioned at threshing cylinder direction of rotation downstream of net 123, instead of be formed in and accept net 123, handled thing easily becomes each straight line steel 141A being positioned at frame portion 123B(the 2nd undertaking wet end 137 of the direction of rotation upstream side of threshing cylinder 9 of stacking states, 141B or the 1st accepts the straight line steel 140B of wet end 136) etc. on, so can promote that singulate grain such in handled thing is from hole 144 of respectively leaking down especially, 151 leak down: namely due to large with phase specific mass such as cut-out straw or straw bits etc., so be easily subject to the singulate grain of the impact of the centrifugal force produced owing to rotating together with threshing cylinder 9.

Its result is, effectively can prevent the generation that the is bad and grain damage caused of leaking down due to singulate grain, can improve the quality of grain.

In addition; effectively can suppress the generation of card grain; namely can not occur under the state being distributed to the root side of receiving harvested cereal culm, to be discharged to outside machine together with the receipts harvested cereal culm after threshing process to the root effluent receiving harvested cereal culm from accepting the singulate grain that leaks down of net 123 in rotation along with threshing cylinder 9.

And, when threshing chamber forming member 149 is worn and torn due to contact with handled thing etc., easily only threshing chamber forming member 149 can be replaced by new parts.

As shown in Fig. 9 ~ Figure 11 and Figure 18, swing sorting mechanism 125 to be configured to, being driven along the longitudinal direction by the driving mechanism 152 of cam-type, the top of the sieve shell 153 of swing is equipped with the cereal dish (グ レ Application パ Application) 154 of ragging, chaff sieves the 155, the 1st straw shaker 156 and the 2nd straw shaker 157, is equipped with cereal dish 158 and the grain sieve 159 of refining-sorting in the bottom of sieve shell 153.In addition, sieve the gears such as 155 by the cereal dish 154 on top or chaff and connect sorting process thing from accepting the mixing such as singulate grain that net 123 leaks down and straw bits, implement the ragging process based on screening, and the sorting process thing of the mixing such as the singulate grain that leak down from chaff sieve 155 and band branch stalk grain is connect by the cereal dish 158 of bottom or grain sieve 159 gear, implement the refining-sorting process based on screening, sorting process thing is divided the singulate grain elected as a thing, as the mixture of band branch stalk grain or the straw bits etc. of secondary thing, and the dust of cut-out straw or straw bits etc. as three things.

Chaff sieve 155 is configured to, and in the front and back central authorities on the top of sieve shell 153, to be arranged multiple movable scalping flange plate (チ ャ Off リ ッ プ plate) 160 and fixed scalping flange plate 161 along the longitudinal direction with a determining deviation.The respective upper end pivotable of movable each scalping flange plate 160 is bearing on sieve shell 153, is linked by connecting member 162 and link in respective lower end, so that the one swinging operation in front-rear direction that can to carry out with their upper end be fulcrum.

Being configured on the movable scalping flange plate 160 of their front and back central authorities in multiple movable scalping flange plate 160, is equipped with the linking arm 163 swung for fulcrum one with its upper end.In addition, on the free end of this linking arm 163 and the gamut of sieve shell 153, have extension spring 164 via linking arm 163 and connecting member 162 erection, this extension spring 164 carries out swings to movable each scalping flange plate 160 exert a force to the closedown side that path narrows of flowing down forming handled thing between which.In addition, on the free end of linking arm 163, be connected with action bars 165 via connecting strand 166, this action bars can carry out the swinging operation of movable each scalping flange plate 160 to opening direction of the active force overcoming extension spring 164.

Action bars 165 is configured in the rear of sack-filling device 105 together with guided plate 167, vertically can carry out swinging operation, remains on desired operating position by engaging with the engaging of guided plate 167.

Namely, by carrying out swinging operation to action bars 165 in the vertical direction, the aperture of the movable part 155A be made up of multiple movable scalping flange plate 160 of adjustable chaff sieve 155, by making action bars 165 be fastened on guided plate 167 at the operating position place obtaining desired aperture, aperture chaff can being sieved the movable part 155A of 155 sets and remains desired aperture.

Sieve shell 153 is equipped with retainer 168, this retainer 168 is by the swing abutting the draw direction to extension spring 164 limiting linking arm 163 of the free end with linking arm 163, and the movable part 155A preventing chaff from sieving 155 thus becomes full-shut position under the effect of the active force of extension spring 164.

Thus; even if when relieving the connection of action bars 165 and linking arm 163 because connecting strand 166 cut-out waits; the aperture that also can prevent chaff from sieving the movable part 155A of 155 becomes full-shut position; singulate grain etc. can be made to leak down from the movable part 155A of chaff sieve 155, and result can play swing sorting function.

[other embodiments]

[1] structure of the handled thing of sheller unit of the present invention can being leaked down is applied in and is configured to implement in the ordinary combine harvester of threshing process or the sheller unit of full stalk feed type combine harvester (whole culm discharging type combine-harvester) the full stalk receiving harvested cereal culm.

[2] as accepting net 123, curling net or resin web can be adopted, also can adopt the undertaking net be made up of punch metal etc.

[3] as accepting net 123, can not divide and cede territory to form, also can be configured in addition may be partitioned into both direction, be i.e. the direction of rotation of threshing process direction or threshing cylinder 9 and threshing process direction.

[4] as shown in figure 19, can be configured in the bottom of support unit 148 with cross over from support unit 148 accept the mode of net 123 weld be formed multiple leak down the threshing chamber forming member 149 of sheet metal in hole 151, when threshing chamber forming member 149 is worn and torn due to contact with handled thing etc., together with support unit 148, threshing chamber forming member 149 is replaced by new parts.

[5] quantity and shape etc. in hole 144,151 of leaking down can carry out various change.

[6] also can not form hole 144 of leaking down on undertaking net 123, and only in threshing chamber forming member 149, form hole 151 of leaking down.

[the 3rd embodiment]

Then, with reference to Figure 21 ~ Figure 25, the 3rd embodiment is described.

Figure 20 is the longitudinal cross-sectional side view of the sheller unit of present embodiment.As shown in the drawing, the sheller unit of present embodiment has: threshing portion 210, has the threshing feed chain 211 of the outside being arranged on body 201 and is arranged on the threshing chamber 212 of the front portion in body; Be arranged on the discharge straw conveying plant 220 at the rear of above-mentioned threshing chamber 212; Be arranged on the below of above-mentioned threshing chamber 212 and there is the sorting portion 230 of oscillatory sorting device 231; Be arranged on the below of above-mentioned discharge straw conveying plant 220 and there is the dust discharge portion 240 of dust exhausting fan 241; Be arranged on the first auger conveyor 202 and the second auger conveyor 203 of the bottom in above-mentioned sorting portion 230; Be arranged on the discharge straw treating apparatus 250 at the rear portion of above-mentioned body 201 continuously.

This sheller unit is equipped on combine, the process of the threshing process of the receipts harvested cereal culm that row of going forward side by side is gathered in by the reaping part (not shown) of combine, the sorting process of threshing grain, threshing discharge straw.

That is, above-mentioned threshing portion 210 is except having above-mentioned threshing feed chain 211 and above-mentioned threshing chamber 212, also has the undertaking net 213 of the bottom being arranged on threshing chamber 212, carries out the threshing process of receiving harvested cereal culm.

That is, threshing feed chain 211 is while will receive the root side direction body rear side clamping conveying of harvested cereal culm while the fringe head side of receiving harvested cereal culm is supplied to threshing chamber 212.Threshing chamber 212 has the threshing cylinder 9 driving around the axle center of body fore-and-aft direction and rotatably arrange in threshing chamber, carries out threshing process by the fringe head side of threshing cylinder 9 to supplied receipts harvested cereal culm.Threshing is discharged straw and is passed out to the rear of threshing chamber 212 from the dirt mouth 215 that send of the rearward end being positioned at threshing chamber 212 by threshing feed chain 211.

Above-mentioned discharge straw device 220 is configured to be had: the annular rotating link chain 221 being arranged on the rear portion in body, this annular rotating link chain is configured to its conveying side, top and is positioned near the cross side in feeding terminal portion of threshing feed chain 211, and its feeding terminal side is positioned at above the discharge straw feeding mouth 251 of above-mentioned discharge straw treating apparatus 250; With the below of the conveyor side at this annular rotating link chain 221 annularly conveying guide rod 222 that arranges of rotating link chain 221.

As shown in Figure 20, Figure 22, the conveying side, conveying top of guide rod 222 and feeding terminal side via upper end be attached at body on conveying guide rod 222 up and down towards connecting rod 223 be bearing on the support unit 224 of body side.The above-mentioned support unit 224 of conveying side, top is fixed on and guides on the above-mentioned threshing feed chain 211 chain guide of advancing.The above-mentioned support unit 224 of feeding terminal side is fixed on the framework 204 of body 201.The above-mentioned support unit 224 of conveying side, top and feeding terminal side slides up and down and supports above-mentioned connecting rod 223 freely.Above-mentioned each connecting rod 223 by spring 225 apply rise power, this spring 225 be configured in conveying guide rod 222 and above-mentioned support unit 224 between and be arranged on connecting rod 223.Thus, guide rod 222 is carried to be exerted a force to exert a force close to the mode of annular rotating link chain 221 by above-mentioned spring 225.

Discharging straw conveying plant 220 is undertaken between annular rotating link chain 221 and conveying guide rod 222 by the root side of the threshing of discharging from threshing chamber 212 discharge straw from threshing feed chain 211, the threshing accepted like this is discharged straw its fringe head side to be positioned in the crossbearer posture be positioned at than above-mentioned discharge straw conveying plant 220 on the supporting track (not shown) of fringe head side, carry to the clamping of body rear by annular rotating link chain 221 and conveying guide rod 222, and drop to the top of the discharge straw feeding mouth 251 of discharging straw treating apparatus 250.The distance that annular rotating link chain 221 is configured to the closer to feeding terminal side apart from threshing feed chain 211 is larger, discharges straw conveying plant 220 and threshing discharge straw is moved relative to the opposition side of body 201 to threshing feed chain side, while conveying.

When the amount change of straw is discharged in the threshing of carrying by discharging straw conveying plant 220, the amount change of straw is discharged in threshing, carry guide rod 222 to discharge the reaction force of straw by the operating physical force of above-mentioned spring 225 with from threshing thus, with relative to annular rotating link chain 221 away from or close mode move.Thus, the interval of discharging straw amount larger conveying guide rod 222 and annular rotating link chain 221 is larger, and the interval of discharging straw amount less conveying guide rod 222 and annular rotating link chain 221 is less.

Above-mentioned discharge straw treating apparatus 250 has: chopping housing 252, has above-mentioned discharge straw feeding mouth 251; With long straw outlet 253, be arranged on the top of the rear end side of this chopping housing 252.Lid 254 that chopping housing 252 has opening and closing above-mentioned discharge straw input port 251, that rotatably install, there is in enclosure interior the cutter shaft 255 and supply axle 256 that rotatably arrange around the driving of the axle center of body transverse direction, there is the chopping straw outlet 257 of the below being arranged on above-mentioned cutter shaft 255 and supply axle 256.

When carrying out shutoff operation to above-mentioned lid 254, discharging straw treating apparatus 250 becomes the treatment state of discharging long straw.So, discharge straw treating apparatus 250 and the threshing straw from above-mentioned discharge straw conveying plant 220 is directed to long straw outlet 253 under the outer surface side direction of lid 254, and drop to the ground at body rear from this long straw outlet 253 with the state of long straw.

When carrying out opening operation to above-mentioned lid 254, discharge the treatment state that straw treating apparatus 250 becomes chopping discharge.So, discharge straw treating apparatus 250 to make to drop to chopping housing 252 inside from the threshing discharge straw of above-mentioned discharge straw conveying plant 220 from above-mentioned discharge straw feeding mouth 251, the supply cutter of the collar plate shape that also can freely rotate integrally side by side on its axis direction that the bite of the collar plate shape that also can freely rotate integrally side by side on its axis direction utilizing above-mentioned cutter shaft 255 to have and above-mentioned supply axle 256 have, shaft direction is shredded, and makes the discharge straw of chopping state drop to ground from chopping straw outlet 257.

Above-mentioned sorting portion 230, except having above-mentioned oscillatory sorting device 231, also has the selection by winnowing fan 232 of the below of the front being arranged on this oscillatory sorting device 231 and is arranged on the above-mentioned process rotary body 233 sending the rear of dirt mouth 215.

Above-mentioned process rotary body 233 is driven by the mode rotated around the axle center of body transverse direction, the above-mentioned straw sending dirt mouth 215 to discharge from threshing chamber 212 is considered to be worth doing a side bumper to connect and to be bearing on top straw shaker 234 that oscillatory sorting device 231 has resolution process on one side, and take out grain from straw bits.

Oscillatory sorting device 231 is except having above-mentioned top straw shaker 234, also there is cereal dish 235 and the chaff sieve 236 of the below being positioned at above-mentioned undertaking net 213, there is the straw shaker 237 at the rear being arranged on above-mentioned chaff sieve 236, there is the grain sieve 238 of the below being arranged on above-mentioned chaff sieve 236.

Sorting portion 230 is by based on the swing sorting of oscillatory sorting device 231 and the wind sorting based on the sorting wind supplied to above-mentioned dust discharge portion 240 by above-mentioned selection by winnowing fan 232, by the handled thing from above-mentioned process rotary body 233 with divide from threshing chamber 212 to fall supply handled thing by accepting net 213 handled thing elected single treatment thing, after-treatment thing, straw bits etc. as and discharge, and single treatment thing and after-treatment thing are fallen from oscillatory sorting device 231, the handled thing of discharging is delivered to above-mentioned dust discharge portion 240.

The single treatment thing fallen from oscillatory sorting device 231 is passed out to the lateral outer side of body 201 by above-mentioned first auger conveyor 202, and is supplied to and winnows in device 204.Threshing grain is sent in the grain container (not shown) of combine by this device 204 of winnowing.The after-treatment thing fallen from oscillatory sorting device 231 is passed out to the lateral outer side of body 201 by above-mentioned second auger conveyor 203, and is supplied to reduction apparatus 205.After-treatment thing is transported to and is arranged on going back in stomodaeum on the horizontal sidewall of body 201 by this reduction apparatus 205, and goes back from this side, top reverting to oscillatory sorting device 231 in stomodaeum feeding body.

Above-mentioned dust discharge portion 240 has: the wind-force dust discharge path B of the below of the dust discharge path A with the band fan of above-mentioned dust exhausting fan 241 and the dust discharge path A being arranged on this band fan.

The dust discharge path A of above-mentioned band fan is formed by driving the blower-casting 242 receiving above-mentioned dust exhausting fan 241 freely, dust discharge path A with fan, except having above-mentioned dust exhausting fan 241, also has the dust pump orifice 243 formed by the pump orifice of blower-casting 242 and the dust outlet 244 formed by the outlet of blower-casting 242.

Above-mentioned dust pump orifice 243 is to be positioned at the top of the rearward end of above-mentioned oscillatory sorting device 231 towards the mode of oscillatory sorting device 231 opening.Above-mentioned dust outlet 244 is to be positioned at the inside of above-mentioned chopping housing 252 towards the mode of above-mentioned chopping straw outlet 257 opening.

Thus, the handled thing of the discharge of being with the dust discharge path A of fan to be sent at the rear portion from sorting portion 230, the power that blows by dust exhausting fan 241 is aspirated from dust pump orifice 243, and is discharged to body from dust outlet 244 via chopping housing 252.The part of dust discharge path A with fan to the sorting wind from above-mentioned selection by winnowing fan 232 is aspirated and discharges together with handled thing.

Above-mentioned wind-force dust discharge path B is formed by the part 242a being positioned at the below of dust exhausting fan 241 of said fans housing 242 and the rearward end of oscillatory sorting device 231, is communicated with the rearward end of oscillatory sorting device 231.Wind-force dust discharge path B has dust outlet 245 in the rearward end of body 201, and this dust outlet 245 is disposed in the below of the dust outlet 244 of the dust discharge path A of above-mentioned band fan.This dust outlet 245 is towards long straw outlet 257 opening of above-mentioned chopping housing 252.

The handled thing of the discharge sent from sorting portion 230, by the feeding force produced by the sorting wind from selection by winnowing fan 232, imports by wind-force dust discharge path B, and is discharged to body from dust outlet 245 via chopping housing 252.

Above-mentioned wind-force dust discharge path B has the dust discharge control volume 260 of plate shape, and this dust discharge control volume 260 is arranged on the position entered a little compared with above-mentioned dust outlet 245 inside body.As shown in figure 22, above-mentioned dust discharge control volume 260, via the rotation fulcrum 261 of end disposed thereon rotatably integrally, is rotatably bearing on the horizontal sidewall 201a of the left and right of body 201.

Figure 21 (a) is the end view under the closed posture of dust discharge control volume 260.As shown in the drawing, when dust discharge control volume 260 falls side oscillation operation when the rotation process by above-mentioned rotation fulcrum 261 downwards around the horizontal axle center of the body of this rotation fulcrum 261, closed posture is become.So dust discharge control volume 260 becomes the posture of intersecting with the handled thing flow direction of wind-force dust discharge path B, pass through wind-force dust discharge path B to suppress handled thing.

Figure 21 (b) is the end view opened under posture of dust discharge control volume 260.As shown in the drawing, when dust discharge control volume 260 upwards rises side oscillation operation when the rotation process by above-mentioned rotation fulcrum 261 around the horizontal axle center of the body of this rotation fulcrum 261, become and open posture.So dust discharge control volume 260 becomes the posture of the handled thing moving direction along wind-force dust discharge path B, to make handled thing easily by wind-force dust discharge path B.

As shown in figure 22, above-mentioned dust discharge control volume 260 is linked by the position being linked with connecting rod 223 of link gear 270 with the above-mentioned feeding terminal side of above-mentioned conveying guide rod 222, described link gear 270 has swing arm 271, and this swing arm 271 is rotatably arranged on the end of above-mentioned rotation fulcrum 261 integratedly in the mode linked with the opposition side of side residing for this above-mentioned threshing feed chain 211.

Figure 21 represents the side-looking structure of above-mentioned link gear 270.Figure 22 represents the rear TV structure of above-mentioned link gear 270.As shown in these figures, link gear 270 is configured to have: the linkage L with above-mentioned swing arm 271; Be arranged on the rotation universal driving shaft 272 along body transverse direction of the outside of the top of the dust discharge path A of above-mentioned band fan; Above-mentioned connecting rod 223; And the cam-type linkage portion 280 arranged on the gamut of the end of the threshing feed chain side of this connecting rod 223 and above-mentioned rotation universal driving shaft 272.

Aforementioned link mechanism L is except having above-mentioned swing arm 271, also there is swing arm 273, this swing arm 273 be rotatably arranged on above-mentioned rotation universal driving shaft 272 integratedly be provided with on the end of opposition side, side of above-mentioned cam-type linkage portion 280, and there is the interlock connecting rod 274 linking this swing arm 273 and above-mentioned swing arm 271.This linkage L is positioned at and is in the dust discharge path A of the band fan of opposition side and the outside of wind-force dust discharge path B relative to the dust discharge path A of above-mentioned band fan and dust discharge control volume 260 with threshing feed chain side, and is positioned at the below that the path 226 of straw is discharged in the threshing of being carried by above-mentioned discharge straw conveying plant 220.

As shown in figure 21, above-mentioned cam-type linkage portion 280 is configured to be had: the cam body 281 of oscillating-type, is rotatably arranged on the end of above-mentioned rotation universal driving shaft 272 integratedly; With the drive disk assembly 282 formed by pole material, be attached at the bottom of above-mentioned connecting rod 223 in the mode extended to above-mentioned cam body 281.Cam-type linkage portion 280 is covered dust is not easily adhered to by cover 285.

Above-mentioned cam body 281 has the cam surface 283 formed by the side face of the cam surface organizator set up thereon.Above-mentioned drive disk assembly 282 has the abutting part 284 be arranged in the mode abutted with above-mentioned cam surface 283 in its extended end portion.Above-mentioned cam body 281 is swung force by the weight of dust discharge control volume 260 via aforementioned link mechanism L, is pressed against force thus to cam surface 283 to abutting part 284.

When conveying guide rod 222 with relative to annular rotating link chain 221 away from mode move, or when moving in close mode, cam-type linkage portion 280 makes conveying guide rod 222 link with rotation universal driving shaft 272 by abutting part 284 with abutting of cam body 281, makes conveying guide rod 222 and dust discharge control volume 260 link as follows thus.

Namely, them are made to link as described below: when such as shown in Figure 21 (b), carry guide rod 222 relative to annular rotating link chain 221 away from movement, interval between conveying guide rod 222 and annular rotating link chain 221 becomes when setting interval D, dust discharge control volume 260 becomes above-mentionedly opens posture, when such as shown in Figure 21 (a), conveying guide rod 222 is close mobile relative to annular rotating link chain 221, and the interval of conveying guide rod 222 and annular rotating link chain 221 becomes than when setting the little interval of interval D (be less than and set interval), dust discharge control volume 260 becomes above-mentioned closed posture.

And then, when carrying the interval of guide rod 222 and annular rotating link chain 221 to become interval (the setting more than interval) that exceed above-mentioned setting interval D, link as described below, namely being absorbed relative to slidingly contacting of cam surface 283 by abutting part 284 relative to the movement of annular rotating link chain 221 of the conveying guide rod 222 in this situation, and the transmission cut off from conveying guide rod 222 to dust discharge control volume 260 and dust discharge control volume 260 is maintained above-mentionedly open posture.

Namely, link gear 270 makes conveying guide rod 222 and dust discharge control volume 260 link, from carrying the position being linked with connecting rod 223 of the above-mentioned feeding terminal side of guide rod 222, passing through the outside of the opposition side of the threshing feed chain side of the dust discharge path A of the outside of the top of the dust discharge path A of band fan and band fan, until the opposition side of the threshing feed chain side of dust discharge control volume 260, link with the state linked with dust discharge control volume 260.

Thus, when carrying guide rod 222 to move to more than away from above-mentioned setting interval D relative to annular rotating link chain 221, dust discharge control volume 260 becomes with it above-mentioned in linkage and opens posture, when carrying guide rod 222 to move to relative to annular rotating link chain 221 position being less than above-mentioned setting interval D, dust discharge control volume 260 becomes above-mentioned closed posture with it in linkage.

When the paddy stalk quantitative change being supplied to threshing chamber 212 is many, the handled thing amount being supplied to sorting portion 230 from threshing chamber 212 increases, and the amount of the handled thing that the straw bits produced in sorting portion 230 etc. are discharged increases.So the dust that single treatment thing or after-treatment thing easily occur is mixed into.When the paddy stalk amount being supplied to threshing chamber 212 reduces, the handled thing amount being supplied to sorting portion 230 from threshing chamber 212 reduces.So, easily there is dispersing of the grain caused by sorting wind.When the paddy stalk amount being supplied to threshing chamber 212 increases, be supplied to the threshing discharge straw amount of discharging straw device 220 to increase, interval between conveying guide rod 222 and annular rotating link chain 221 increases, so as above-mentioned setting interval D, be set in the interval produced when the handled thing amount of discharge produced in sorting portion 230 increases.

Thus, when the paddy stalk amount being supplied to threshing chamber 212 increases, dust discharge portion 240 by conveying guide rod 222 relative to annular rotating link chain 221 leave more than above-mentioned setting interval D away from mobile and link gear 270, automatically by dust discharge control volume 260 handover operation for opening posture, and by the band dust discharge path A of fan and wind-force dust discharge path B, the handled thing of the discharge from sorting portion 230 to be discharged to outside body.

When the paddy stalk amount being supplied to threshing chamber 212 reduces, dust discharge portion 240 moves to by conveying guide rod 222 movement and the link gear 270 that are less than the position of above-mentioned setting interval D relative to annular rotating link chain 221 distance, be automatically closed posture by dust discharge control volume 260 handover operation, and mainly by band fan dust discharge path A, the handled thing of the discharge from sorting portion 230 be discharged to outside body.

[other embodiments]

Figure 23 represents the rear TV structure of the link gear 270 of other embodiments.Figure 24 is the partial top view of the link gear 270 of other embodiments.

The link gear 270 of another embodiment is compared with the link gear 270 of previously described embodiment, be configured to have this one side of above-mentioned connecting rod 223, above-mentioned cam-type linkage part 280, above-mentioned rotation universal driving shaft 272 and aforementioned link mechanism L at link gear 270, the link gear 270 of another embodiment is consistent with the link gear 270 of the 3rd embodiment.The link gear 270 of another embodiment has delay device 290, and in this, the link gear 270 of another embodiment is different from the link gear 270 of the 3rd embodiment.Then delay device 290 is described.

As shown in Figure 24, Figure 25, above-mentioned delay device 290 has: pin down plate 292, is supported by the supporting slice 291 be arranged on rotatably integrally on the above-mentioned rotation fulcrum 261 of above-mentioned dust discharge control volume 260 and above-mentioned rotation fulcrum 261; Feed screw axle 293, is rotatably bearing on the horizontal sidewall 201a of body 201; With driven wheel 295, be rotatably bearing in the driven wheel 295 on above-mentioned horizontal sidewall 201a with the state engaged with the gear 294 that this feed screw axle 293 has rotatably integrally.

Driven wheel 295 is driven all the time, drives feed screw axle 293 in the mode rotated all the time.Pin down plate 292 to be made up of latch plate.Supporting slice 291 has spring 297, this spring 297 via run through insert pin down the base portion side of plate 292 fulcrum post 296 supporting pin down plate 292 and be arranged on above-mentioned fulcrum post 296.Above-mentioned spring 297 is pressed against force to pining down plate 292 to supporting slice 291, even if pin down plate 292 to become the mounting position leaving supporting slice 291, is also easily returned to the mounting position contacted with supporting slice 291.

Figure 24 (a) is the vertical view that dust discharge control volume 260 becomes the delay device 290 under the state opening posture OP.Figure 25 (a) is the end view that dust discharge control volume 260 becomes the delay device 290 under the state opening posture OP.As shown in these figures, when dust discharge control volume 260 become open posture OP time, pining down plate 292 becomes the mounting position being positioned at the position left slightly to top from feed screw axle 293.

Figure 24 (b), (c), (d) are the vertical views of the active state representing delay device 290.Figure 25 (b) is the end view of the delay device 290 being in the state shown in Figure 24 (b).Figure 25 (c) is the end view of the delay device 290 being in the state shown in Figure 24 (c).Figure 25 (d) is the end view of the delay device 290 of the shown state being in Figure 24 (d).

As shown in these figures, when link gear 270 moves to relative to annular rotating link chain 221 position and action that are less than above-mentioned setting interval D along with conveying guide rod 222, due to the rotation of rotation fulcrum 261 caused by the swinging operation of swing arm 271 produced by interlock connecting rod 274, pining down plate 292 becomes the mounting position ridden on feed screw axle 293.Now, dust discharge control volume 260 is from opening posture OP to closedown side oscillation.But, pin down plate 292 gear and connect and be bearing on feed screw axle 293, pin down dust discharge control volume 260 and make it also not be switched to closed posture CL.Now, above-mentioned cam-type linkage portion 280 is left with above-mentioned cam surface 283 by above-mentioned abutting part 284 and allows to carry guide rod 222 to move to being less than the position setting interval D relative to annular rotating link chain 221.

When pining down plate 292 and riding over like this on feed screw axle 293, feed screw axle 293 by feed screw axle 293 ridge and pin down the abutting of plate 292, feeding operation is carried out to pining down plate 292, pin down plate 292 with rotate the position that links of fulcrum 261 for swing pivot, elastic deformation is to along the state of direction swing rotating fulcrum 261.Along with the carrying out of this Flexible change, pin down plate 292 and leave from feed screw axle 293.So decline swings by naturally declining of dust discharge control volume 260 to pin down plate 292, allows dust discharge control volume 260 to the switching of closed posture CL.

Pining down plate 292 when leaving from feed screw axle 293, also becoming the mounting position observing, pin down plate 292 and feed screw axle 293 coincidence in the direction in the axle center along feed screw axle 293.Thus, dust discharge control volume 260 from closed posture switch to open posture time, pin down plate 292 and can not be subject to the top that feed screw axle 293 is got back in rising that feed screw axle 293 produces with hindering.

Thus, when carrying guide rod 222 to move to relative to annular rotating link chain 221 position being less than above-mentioned setting interval D, delay device 290 by feed screw axle 293 to pining down during plate 292 carries out feeding operation, the closing motion of dust discharge control volume 260 is postponed, from conveying guide rod 222 to be less than above-mentioned setting interval D position moved through the setting-up time feeding time pining down plate 292 determined by feed screw axle 293 after, dust discharge control volume 260 is switched to closed posture CL.

Namely, even if conveying guide rod 222 is less than the position of setting setting interval D from getting back to apart from the position more than above-mentioned setting interval D of annular rotating link chain 221, dust discharge control volume 260 is not also switched to closed posture CL by delay device 290 immediately, when carrying guide rod 222 to be positioned at relative to annular rotating link chain 221 being the position of more than above-mentioned setting interval D, the handled thing of discharging discharge also residual after being supplied to sorting portion 230 needs the time, after have passed through the setting-up time set as this time, dust discharge control volume 260 is switched to closed posture CL.

[other embodiments]

Also the cam-type linkage portion 280 shown in above-mentioned embodiment can be replaced, and adopt the cam-type linkage portion with following formation to implement, even if cam body 281 is arranged in linkage with conveying guide rod 222, and the drive disk assembly 282 with abutting part 284 is arranged in linkage with dust discharge control volume 260.In this case, also object of the present invention can be realized.

Also can replace the dust discharge control volume 260 shown in above-mentioned embodiment, and adopt the dust discharge control volume being configured to harrow (rake) shape.

[the 4th embodiment]

Then with reference to Figure 26 ~ Figure 35, the 4th embodiment is described.

[entirety of crawler travel device is formed]

Figure 26 represents the side of the head feeding type combined harvester of the example as the Operation Van with crawler travel device 301 of the present invention, Figure 27 and Figure 28 represents the unitary side view of crawler-tread 301 and overall vertical view respectively.In addition, Figure 29 and Figure 30 represents end view near antihunting device 350 and vertical view respectively.

As shown in figure 26; the front portion of the body 302 of advancing of the crawler-tread 301 of this combine about having has lifting reaping part 303 freely, in the grain returnable 306 etc. body 302 with running portion 304, sheller unit 305, band conveying plant of advancing.

As shown in Figure 27 and Figure 28, crawler-tread 301 is configured to have the crawler belt 315 that the drive sprocket 311 of front end, the regulating wheel 312 of rear end, configuration multiple (in this example being 8) ground connection runner 313 between which, the bearing roller 314 of front and back a pair and winding are located at the rubber on drive sprocket 311, regulating wheel 312, ground connection runner 313, bearing roller 314.Along the longitudinal direction with the projecting axle projection 316 having pair of right and left of certain spacing on the inner peripheral surface of crawler belt 315, in the mode of crossing over this axle projection 316 from left and right, ground connection runner 313 is installed, and in the mode between the axle projection 316 snapping in left and right, regulating wheel 312 and bearing roller 314 is installed.

Organism frame 307 is configured to cross over the platform-like of roughly whole width of bottom of body 302 of advancing, and is equipped with above-mentioned sheller unit 305 etc. on the top of this organism frame 307.The longer multiple crossing frames 317 in left and right are linked with, fixed frame 318 longer before and after this crossing frame 317 is linked with in the lower face side of organism frame 307.In the central portion axle supporting of fixed frame 318, bearing roller 314 is installed, links at the front and rear of fixed frame 318 and be supported with front and rear swing mechanism 308,309.Like this, crawler frame 321 can link via anterior and rear portion swing mechanism 308,309 on the fixed frame 318 that is bearing in and is linked on organism frame 307 with swinging up and down.

Anterior swing mechanism 308 is configured to have swing arm 319, fulcrum 333, motion arm 335, hydraulic cylinder 338 etc., and rear portion swing mechanism 309 is configured to have swing arm 320, fulcrum 334, swing connecting bar 322, motion arm 336, hydraulic cylinder 339 etc.

Be supported with the front and back of the fixed frame 318 of crawler frame 321 linking, can around axle center a, b swing up and down backward pivotable supporting be linked with the swing arm 319,320 of front and back a pair.The free end pivotable supporting of the swing arm 319 in front is linked with the front portion of crawler frame 321, and the free end of swing arm 320 is in the wings linked with the rear portion of crawler frame 321 via the supporting of swing connecting bar 322 pivotable.

One motion arm 335,336 can be swingingly extended respectively from the end of the body inward side of the fulcrum 333,334 cardinal extremity of the swing arm 319,320 before and after being attached at, motion arm 335 in front and organism frame 307 is added is provided with hydraulic cylinder 338, motion arm 336 in the wings and organism frame 307 is added is provided with hydraulic cylinder 339.

Form anterior swing mechanism 308 as described above, when hydraulic cylinder 338 extends, when motion arm 335 swings, swing synchronous downwards with swing arm 319, the front portion of crawler frame 321 is moved downwards, and the terrain clearance of the front portion of organism frame 307 relatively increases.On the contrary, when hydraulic cylinder 338 shortens, when motion arm 335 swings, swing synchronous upward with swing arm 319, the front portion of crawler frame 321 is moved upward, and the terrain clearance of the front portion of organism frame 307 reduces.

In addition, rear portion swing mechanism 309 is formed as described above, when hydraulic cylinder 339 extends, when motion arm 336 swings, swing synchronous downwards with swing arm 320, the rear portion of crawler frame 321 is moved downwards via swing connecting bar 322, and the terrain clearance of the front portion of organism frame 307 relatively increases.On the contrary, when hydraulic cylinder 339 shortens, when motion arm 336 swings, swing synchronous upward with swing arm 320, the front portion of crawler frame 321 is moved upward via swing connecting bar 322, and the terrain clearance of the front portion of organism frame 307 reduces.

Therefore, each hydraulic cylinder 338,339 of the front and rear swing mechanism 308,309 of the crawler travel device 301 of left and right is formed by independent operation, the terrain clearance of the left and right of organism frame 307 can be changed, thus can change regulate crawler frame 321 relative to body 302(organism frame 307 of advancing) left and right and the inclination attitude of fore-and-aft direction, left and right can be carried out and roll and regulate and spacing adjustment.

On the first half side of crawler frame 321, around left and right towards axle center swing be supported with former and later two runner brackets 310 freely, on the leading section and rearward end of this runner bracket 310, pivot suspension is provided with ground connection runner 313 idling freely respectively.The de-wheel peventing member 323 that front and back between the axle projection 316 being provided with the left and right entering crawler belt 315 in the below of runner bracket 310 are long.

As shown in Figure 29 and Figure 30, the runner bracket 310 being positioned at front end is provided with antihunting device 350.Antihunting device 350 is configured to be had: the bracket 351 extended to side from crawler frame 321; Embedded extend into the front and rear of this bracket 351 upper and lower towards bolt 352; With the spring 353 of front and back, this spring 353 is to be arranged on fitted in the state on bolt 352 on the backing plate of the bottom of bracket 351 and bolt 352.Extend cartridge 354 downwards from bracket 351, the embedded spring 353 of the inner peripheral surface along this cartridge 354, make spring 353 be configured to stretch up and down limpingly thus.

The spring 353 of front and back is configured to, when runner bracket 310 due to the concavo-convex of road surface or field and swing time, to the reactive spring force effect of runner bracket 310 level force, such as when the front portion of runner bracket 310 swings upward, the bolt 352 of front side is boosted upward, and spring 353 is compressed, thus the reactive spring force of spring 353 can be made to act on the side swung with runner bracket 310 go up in the opposite direction.

Like this, by arranging antihunting device 350 on runner bracket 310 and crawler frame 321, the vibration being delivered to the concavo-convex generation due to road surface or field of runner bracket 310 via crawler belt 315 is relaxed by antihunting device 350 and absorbs, and be not easily delivered to crawler frame 321, the vibration being delivered to body 302 of advancing via crawler frame 321 can be suppressed, thus the riding comfort of combine can be improved.

As shown in Figure 27 and Figure 28, be linked with around axle center P days flat-shaped ground lower swings swing crawler frame 324 freely in the rear portion pivotable supporting of crawler frame 321, on this swing crawler frame 324, pivot suspension is provided with multiple (this example is 4) the ground connection runner 313 of the latter half being arranged in crawler belt ground connection scope idling freely.Can adjustably be provided with slipper bracket 326 in front and back at the rear portion swinging crawler frame 324 via lift bolt 325, on this slipper bracket 326, axle supporting is provided with regulating wheel 312 idling freely.What the front and back between the bottom of this swing crawler frame 324 is provided with the axle projection 316 entering left and right were long is divided into two-part de-wheel peventing member 327.

[swinging the detailed construction of limiting mechanism]

Figure 31 and Figure 32 represents the details drawing of swing limiting mechanism 300 of the present invention.Figure 31 represents the end view swung near limiting mechanism 300, and Figure 32 represents the vertical view swung near limiting mechanism 300.In addition, the swing connecting bar 322 that in Figure 31, expression represents with double dot dash line and swing arm 320 represent and to control by implementing level described later, make swing connecting bar 322 around axle center c rearward swing and with the state swinging limiting part 340 and abut.

As shown in Figure 31 and Figure 32, in the inner surface side swinging crawler frame 324, the swing limiting part 340 extended to the inside is installed.Swing limiting part 340 to be made up of flat steel plate, be fixed in obliquely and swing on crawler frame 324, and the back-surface side linearity of the arm 322a of the outward side of its front-surface side and swing connecting bar 322 abuts.Swing the thickness of slab of limiting part 340 and be set as following intensity with the leg of the weld part swinging crawler frame 324 is long etc., even if namely abut with swing connecting bar 322 and act on larger power, the intensity that also can tolerate fully swinging on limiting part 340.

As shown in figure 31, to control the state rearward swung around axle center c by level described later in swing connecting bar 322 under, will swing around axle center P due to the concavo-convex of road surface or field even if swing crawler frame 324, this swing is also prevented from by swing limiting part 340.Like this, abut with the arm 322a of the swing connecting bar 322 forming rear portion swing mechanism 309 by making the swing limiting part 340 extended from swing crawler frame 324 to body inward side, limit the rear portion of swing crawler frame 324 relative to crawler frame 12 hunting range upward, form like this and swing limiting mechanism 300.

As shown in Figure 31 and Figure 32, pin down connecting rod 328 at the front and back pars intermedia of crawler frame 321 and the front portion erection of swing crawler frame 324.This pins down connecting rod 328 and can pivotable supporting rotationally be attached on the anterior side of swing crawler frame 324 up and down via fulcrum 329, be formed in pin down front and back on connecting rod 328 towards elongated hole 330 in, run through and insert the band ladder fulcrum 331 projecting to the side of crawler frame 321, connecting rod 328 is pind down by packing ring 332 clamping of the end difference and axle head that are arranged on band ladder fulcrum 331, can prevent from swinging crawler frame 324 near the P of axle center centered by side-to-side vibrations, thus can stably supporting oscillation crawler frame 324.In addition, the hunting range of swing crawler frame 324 relative to crawler frame 321 is limited by being formed in the elongated hole 330 pind down on connecting rod 328.

[level control]

As shown in figure 33, there is tilting forward and back sensor 341 and detecting the sensor 342 that tilts of inclination of left and right directions of body 302 of advancing of the inclination of the fore-and-aft direction detecting body 302 of advancing in this combine, the testing result of sensor 341 and the sensor 342 that tilts is tilted forward and back according to this, the magnetic valve 343,344 of the hydraulic cylinder 338,339 stretched is needed to export from control device 345 in order to body 302 of advancing is maintained level, can relative to road surface or field maintenance level to make advancing body 302, such carrying out horizontal controls.In addition, the hydraulic cylinder 338,339 in Figure 33 and L and R of magnetic valve 343,344 represent front portion or the magnetic valve of rear portion swing mechanism 308,309 or the magnetic valve of the front portion on right side or rear portion swing mechanism 8,9 in left side.

[travel condition of crawler travel device]

The travel condition with the crawler travel device 301 of swing limiting mechanism 300 of the present invention is described according to Figure 34 and Figure 35.Figure 34 represents the end view of the travel condition with the crawler travel device 301 swinging limiting mechanism 300, and Figure 35 represents the end view of the travel condition without the crawler travel device 301 swinging limiting mechanism 300.

As shown in figure 35, swing crawler frame 324 can around axle center P flat-shaped relative to crawler frame 321 days swing alone.Therefore, when advancing in concavo-convex road surface or field, as shown in Figure 35 (a) ~ (c), swing by swinging crawler frame 324 forward downward, the front and back central authorities of crawler belt ground connection scope become outstanding shape downwards, can follow the recess in road surface or field well.

In this case, owing to giving prominence to downwards relative to front and back central part on the ground side path of crawler belt 315, regulating wheel 312 is (belt sag side) displacement upward, so tape wrapping length can not increase significantly owing to swinging the swing of the forward downward of crawler frame 324.In addition, although not diagram, but by making swing crawler frame 324 forward upward swing, the front and back of crawler belt ground connection scope central authorities become the shape caved in upward, body 302 of advancing can be crossed the protuberance by road surface or field swimmingly and can not swing up and down significantly up and down.

In addition, in Figure 34 (a) and (c), owing to not limiting the swing of the forward downward swinging crawler frame 324 by swing limiting mechanism 300, so can be identical with the state shown in Figure 35 (a) and (c), the front and back central authorities of crawler belt ground connection scope become outstanding shape downwards and can follow the recess on ground well.Namely, under the state shown in Figure 35 (a) He (c), owing to ensure that the gap between the upside of the rearward end of crawler belt 315 and organism frame 307 fully, even if so swing the swing of crawler frame 324 forward downward, the upside of crawler belt 315 rearward end also can not abut with organism frame 307.Therefore, under the state shown in Figure 34 (a) He (c), do not limit by swinging limiting mechanism 300 swing swinging crawler frame 324 forward downward.

But under the state shown in Figure 35 (b), when swinging crawler frame 324 forward downward and swinging, on the position shown in the X of Figure 35 (b), the upside of crawler belt 315 rearward end likely abuts with organism frame 307.In addition, Figure 35 (b) represents the state that the upside of position crawler belt 315 rearward end shown in X and organism frame 307 are interfered.

As shown in Figure 34 (b), by arranging swing limiting mechanism 300 of the present invention, under the state shown in Figure 34 (b), when swinging crawler frame 324 forward downward and swinging, the swing limiting unit 340 swinging limiting mechanism 300 abuts with the arm 322a of swing connecting bar 322, the front portion and the rear portion that swing crawler frame 324 are restricted with the hunting range of top swing downwards respectively, can prevent the upside of crawler belt 315 rearward end and organism frame 307 from abutting.And, under the state shown in Figure 34 (a) and (c) (Figure 35 (a) and (c)), can not hinder owing to swinging limiting part 340 swing swinging crawler frame 324, so by being simply construed as limiting required minimal hunting range.

In addition, the hunting range swinging crawler frame 324 by above-mentioned to pin down on connecting rod 328 the elongated hole 330 of fore-and-aft direction that has limit, but from the concavo-convex change along with road surface or face, field limit all the time the hunting range swinging crawler frame 324 to pin down connecting rod 328 different, swing limiting mechanism 300 only to limit under the state shown in Figure 34 (b) by the swing of the swing crawler frame 324 pind down in hunting range that connecting rod 328 limits, thus for avoiding the interference of organism frame 307 and crawler belt 315.That is, the hunting range swinging crawler frame 324 is limited under swinging the posture of the forward downward of the crawler frame 321 that limiting mechanism 300 only likely abuts with organism frame 307 in the upside of crawler belt 315 rearward end.

[other embodiments 1]

In above-mentioned 4th embodiment, illustrating and will swing the following example formed of limiting mechanism 300: abutting by making swing limiting part 340 and swing connecting bar 322, limit and swing the hunting range of crawler frame 324 relative to the swing of the forward downward of crawler frame 321, but as long as the mechanism of same purpose can be played, also the swing limiting mechanism 300 of different structure can be adopted, such as also can be configured to, rear portion swing mechanism 309 and swing crawler frame 324 arrange parts (not shown) for limiting swing respectively, thus restriction swings the hunting range of crawler frame 324 relative to the swing of the forward downward of crawler frame 321.

[other embodiments 2]

In above-mentioned 4th embodiment and other embodiments 1, illustrate the example being positioned at the four grounded runner 313 of the latter half of crawler belt ground connection scope in the supporting of swing crawler frame 324 head lamp brush guard pivot, but the number that pivot suspension is arranged on the ground connection runner 313 swung on crawler frame 324 also can be different.In addition, illustrate the example being positioned at the four grounded runner 313 of the first half of crawler belt ground connection scope in the supporting of fixed frame 318 head lamp brush guard pivot, but same with the ground connection runner 313 of the latter half being positioned at crawler belt ground connection scope, the ground connection runner 313 being positioned at the first half of crawler belt ground connection scope also can adopt the formation linking and be bearing on the crawler frame (not shown) of swing.

The formation of the crawler travel device 301 shown in these embodiments, the structure etc. of the number of such as ground connection runner 313, front portion and rear portion swing mechanism 308,309 also can adopt different structures.

[other embodiments 3]

In above-mentioned 4th embodiment and other embodiments 1 ~ 2, illustrate the crawler travel device 301 be arranged on head feeding type combined harvester as an example, but also can be applied to the crawler travel device be arranged in other agricultural operation cars, building Operation Van, Operation Van for building and other Operation Vans equally.

As mentioned above, crawler-tread 301 has following formation.Namely, on the drive sprocket 311 of front end, the regulating wheel 312 of rear end and outfit multiple ground connection runners 313 between which, winding is provided with crawler belt 315, and above-mentioned regulating wheel 312 and ground connection runner 313 are equipped on crawler frame 321, in this crawler-tread 301, link is supported with can around the swing crawler frame 324 of the fulcrum P at the rear portion of above-mentioned crawler frame 321 days flat-shaped ground lower swings, and on this swing crawler frame 324, axle supporting is provided with multiple above-mentioned ground connection runner 313 and the above-mentioned regulating wheel 312 of the latter half being positioned at crawler belt ground connection scope.

In addition, at the drive sprocket 311 of front end, the regulating wheel 312 of rear end and outfit multiple ground connection runners 313 are between which wound with crawler belt 315, and can link with swinging up and down via anterior swing mechanism 308 and rear portion swing mechanism 309 on organism frame 307 and be supported with crawler frame 321, by operating above-mentioned anterior swing mechanism 308 and rear portion swing mechanism 309, the posture of above-mentioned crawler frame 321 relative to above-mentioned organism frame 307 can be changed, and link is supported with can around the swing crawler frame 324 of the fulcrum P at the rear portion of above-mentioned crawler frame 321 days flat-shaped ground lower swings, and axle supporting is provided with multiple above-mentioned ground connection runner 313 and the above-mentioned regulating wheel 312 of the latter half being positioned at crawler belt ground connection scope on above-mentioned swing crawler frame 324, in this crawler-tread 301, have and swing limiting mechanism 300, above-mentioned anterior swing mechanism 308 and rear portion swing mechanism 309 are being operated, under making the posture of the front and rear of above-mentioned crawler frame 321 respectively relative to the forward downward of above-mentioned organism frame 307 downwards and after the swing of top, the front and rear that this swing limiting mechanism 300 limits above-mentioned swing crawler frame 324 respectively relative to above-mentioned crawler frame 321 downwards and the hunting range that swings of the forward downward of the swing of top.

In addition, above-mentioned swing limiting mechanism 300 is configured to, by making the swing limiting part 340 extended from above-mentioned swing crawler frame abut with the swing connecting bar 322 forming above-mentioned rear portion swing mechanism 309, limit the hunting range that the above-mentioned forward downward under above-mentioned forward downward posture swings.

Finally, in each claim of claims, be written with label to easily contrast with accompanying drawing, but the present invention limits the formation of embodiment not by this write.

Claims (5)

1. a sheller unit, has with fulcrum (121) for fulcrum is driven in rotation and to the threshing cylinder (9) receiving harvested cereal culm and implement threshing process, it is characterized in that,

Have undertaking net (123), this undertaking net is formed deviously along the periphery of above-mentioned threshing cylinder (9) and is configured to cover from below the lower side of above-mentioned threshing cylinder (9),

Be positioned in the frame portion (123A) in the direction of rotation downstream of above-mentioned threshing cylinder (9) above-mentioned undertaking net (123), be formed with the 1st leaking down hole (144) of allowing the handled thing that obtained by the threshing process utilizing the rotation of above-mentioned threshing cylinder (9) to carry out to leak down

Above-mentioned undertaking net (123) is formed as clathrate by with lower component: multiple curved plates (138), is set up in parallel on the direction along above-mentioned fulcrum (121) with the posture that the above-mentioned fulcrum (121) with above-mentioned threshing cylinder (9) is orthogonal; With multiple straight line steel (140), to be set up in parallel along the posture of above-mentioned fulcrum (121) along the periphery of above-mentioned threshing cylinder (9),

Substantially rectangular the multiple above-mentioned 1st hole (144) of leaking down is formed side by side with set spacing on the length direction of above-mentioned straight line steel (140).

2. sheller unit as claimed in claim 1, is characterized in that,

In above-mentioned multiple curved plates (138), set bending part (138A, 138B) is formed as larger than other bending part,

Multiple above-mentioned 1st leaks down hole (144) with the state left from the end of above-mentioned set bending part (138A, 138B), and the length direction of above-mentioned straight line steel (140) is formed side by side with set spacing.

3. sheller unit as claimed in claim 1, is characterized in that,

Replace, by above-mentioned multiple curved plates (138) and multiple straight line steel (140), above-mentioned undertaking net (123) is formed clathrate, and form undertaking net by punch metal.

4. the sheller unit as described in any one of claims 1 to 3, is characterized in that,

Be configured in the threshing chamber forming member (149) in the direction of rotation downstream of above-mentioned threshing cylinder (9) relative to above-mentioned undertaking net (123), be formed with the 2nd leaking down hole (151) of allowing the handled thing that obtained by the threshing process utilizing the rotation of above-mentioned threshing cylinder (9) to carry out to leak down.

5. sheller unit as claimed in claim 4, is characterized in that,

Above-mentioned threshing chamber forming member (149) removably bolt link in the bottom of the support unit (148) for cutting stalk cutter (145).