CN101911893B - Threshing apparatus - Google Patents

Abstract

The present invention discloses a threshing apparatus (1) of combine harvester. A guiding plate (25) which guides the grains that flow to the root side of harvested stem to a threshing roller (9) is improved, and the grains which flow to the root side of harvested stem are guided to the threshing roller (9) more reliably. The guiding plate (25) is formed to a state an end at the threshing roller side enters the inside of a rotation track (K) drawn by the tops of threshing teeth (26). Furthermore the end of the guiding plate (25) at the threshing roller side is provided with a threshing tooth passing part (31, 32) which allows the passing of the threshing teeth (26).

Description

Sheller unit

Technical field

The present invention relates to a kind of sheller unit (ThreshingApparatus) being mounted on combine.Particularly, the present invention relates to following sheller unit, have clamping receive the root side of harvested cereal culm carry receive the clamping conveying mechanism of harvested cereal culm, to the fringe head side of the receipts harvested cereal culm of being carried by above-mentioned clamping conveying mechanism implement the threshing cylinder of threshing processing, by the guided plate guiding to above-mentioned threshing cylinder to the grain of receiving under the root effluent of harvested cereal culm along with the rotation of above-mentioned threshing cylinder.

Background technology

Above-mentioned guided plate will guide to threshing cylinder to the grain of receiving under the root effluent of harvested cereal culm along with the rotation of threshing cylinder, prevents that thus this grain from entering i.e. " card grain (the さ さ of root side that is held the receipts harvested cereal culm that conveying mechanism carries

grain) " generation, and avoid in advance discharging together with grain and threshing receipts harvested cereal culm after treatment.

In the past, in sheller unit, disclose following structure, form guided plate (card grain prevents body) by multiple plates of independent-lifting, described guided plate is configured to and moves up and down accordingly with the paddy stalk that is supplied to threshing mouth and by the application of force downwards, and the threshing oralia butt of its top and lower side or approach below dropping to time, and the end of the throughput direction upstream side of described guided plate is formed as the closer to throughput direction upstream side offside in top (for example, with reference to TOHKEMY 2006-14604 communique (JP2006-014604A)).

In the above-described configuration, owing to being formed with paddy stalk guide portion in the throughput direction upstream-side-end at guided plate, if so will be held receipts harvested cereal culm that conveying mechanism clamping carries and be transported to the plate place of the upstream side of throughput direction that is positioned at guided plate, this plate is successfully raised to and receives on harvested cereal culm and the conveying that allows 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 be more reliably will guide to threshing cylinder to the grain of receiving under the root effluent of harvested cereal culm along with the rotation of threshing cylinder.

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

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

Form according to this feature, the top of the threshing cylinder side by guided plate extends in the rotational trajectory on threshing tooth top, and can the rotation along with threshing cylinder be guided to threshing cylinder more reliably to the grain of receiving under the root effluent of harvested cereal culm by guided plate.Although owing to extending in rotational trajectory but formed threshing tooth by portion on guided plate, so can not cause the breakage causing because of guided plate and threshing interference of tooth.Thus, the generation of card grain can be more effectively prevented, the generation of the unfavorable condition that the grain of the root side of receiving harvested cereal culm discharges together with threshing receipts harvested cereal culm after treatment can be prevented from more reliably entering into.

Therefore, can more effectively prevent the decline of the grain organic efficiency causing because of card grain.

Above-mentioned threshing tooth for example can consist of slit or the recess in the open-ended formation of threshing cylinder side on above-mentioned guided plate portion.

In a preferred embodiment, it is characterized in that, above-mentioned guided plate is made up of multiple plate bodys, the position of described plate body above the receipts harvested cereal culm of being carried by above-mentioned clamping conveying mechanism is along the throughput direction alignment arrangements of above-mentioned receipts harvested cereal culm, and the end at the throughput direction upstream side of the above-mentioned receipts harvested cereal culm of above-mentioned each plate body is formed with paddy stalk guide portion, this paddy stalk guide portion is offside in top the closer to this throughput direction upstream side, and the receipts harvested cereal culm of being carried by above-mentioned clamping conveying mechanism is guided downwards.

This formation has the following advantages.

In the formation of JP2006-014604A, owing to not forming paddy stalk guide portion on the plate except the plate of the upstream side of throughput direction, if so this receipts harvested cereal culm is transported to the plate place that is positioned at rear than the plate of the upstream side of throughput direction, receive the throughput direction upstream side ora terminalis that harvested cereal culm easily hangs over each plate, easily cause stopping up or because receiving the problems such as threshing performance reduction that the confusion of conveying posture (threshing posture) of harvested cereal culm causes because of this conveying that tangles the receipts harvested cereal culm causing.

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

And, cause guided plate distortion or when damaged being blocked in due to handled thing between threshing cylinder and guided plate etc., without changing whole guided plate, and the plate body at position by changing its distortion or damage can solve.

Therefore, not only can carry out economically the processing for distortion or the breakage etc. of guided plate, and can prevent from being reduced by the caused grain organic efficiency of card grain, and can not cause gathering in the conveying obstruction of grain or the reduction of threshing performance etc.

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

This formation has the following advantages.

Form according to this feature, because pressing plate protection guided plate is not subject to the impact of the handled thing flowing down to guided plate, thus can prevent due to the wearing and tearing that contact the guided plate causing with handled thing, thus the durability of raising guided plate.

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

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

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

Or, it is characterized in that, there is the net of accepting, this accepts net and forms agley and be configured to cover from below along the periphery of above-mentioned threshing cylinder the lower side of above-mentioned threshing cylinder, accepting the threshing chamber that net is configured in the direction of rotation downstream of above-mentioned threshing cylinder and forming on parts with respect to above-mentioned, be formed with and allow to be processed and the hole of leaking down that the handled thing that obtains leaks down by the threshing that utilizes the rotation of above-mentioned threshing cylinder to carry out.

These formations have the following advantages.

In the past, processed and the handled thing of the sheller unit that the handled thing that obtains the leaks down structure of leaking down by the threshing that utilizes the rotation of threshing cylinder to carry out as making, there is following structure, on the steel plate that is equipped with multiple eyelets, form and accept net by Screw fixed bearing frame or metal frame, and make the handled thing that obtains by threshing processing from accepting as this leak down eyelet of mesh of net (for example, with reference to TOHKEMY 2000-92971 communique (JP2000-092971A) (paragraph 0015～0016, Fig. 1～Fig. 5)).

In addition, there is following structure, the cross section that is 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, the 1st wire steel and the 2nd wire steel, and the 1st parts～5th parts that have as circular-arc parts are arranged side by side with set arrangement, and weld each bonding part, form thus the cancellate net of accepting, and make to process by threshing the handled thing obtaining and leak down (for example, with reference to TOHKEMY 2001-61333 communique (JP2001-061333A) (paragraph 0017～0019 from this mesh of accepting net, Fig. 1～12)).

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

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

Therefore, in order to prevent accepting net because the bad damage causing of leaking down of simple grain grain does not strengthen, with the above-mentioned feature that is configured to arbitrarily.These formations have the following advantages.

First, if form the hole of leaking down in the frame portion in the above-mentioned direction of rotation downstream that is positioned at above-mentioned threshing cylinder of accepting net, leaking down of the handled thing that this hole permission of leaking down is obtained by the threshing processing that utilizes the rotation of above-mentioned threshing cylinder to carry out, the handled thing being obtained by the threshing processing that utilizes the rotation of threshing cylinder to carry out not only leaks down from the mesh of accepting net, also leaks down from the hole of leaking down being formed on the frame portion in the direction of rotation downstream that is positioned at threshing cylinder of accepting net., can not strengthen and accept net and increase the area that leaks down, thereby can promote leaking down of handled thing.

And, owing to the hole of leaking down being formed on along with the rotation of threshing cylinder kicks up handled thing and easily becomes the net of accepting of disperse state, be positioned in the frame portion in direction of rotation downstream of threshing cylinder, rather than be formed on handled thing and easily become in the frame portion that is positioned at direction of rotation upper side of the threshing cylinder of accepting net of stacking states, therefore, can promote that especially grain such in handled thing leaks down from the hole of leaking down, because mass ratio compared with cutting off straw or straw bits etc. is larger, and be easily subject to the grain of the simple grain of the impact of the centrifugal force producing based on rotating together with threshing cylinder.

Therefore; can guarantee large the leak down area corresponding with the high speed of operation; and accept net without increasing; thus; the treating capacity that can realize the high speed of following operation increases; and can promote leaking down of simple grain grain, can prevent that result can improve the recovering effect of simple grain grain and improve the quality of grain by bad damage causing of leaking down of simple grain grain etc.

Especially, by promoting simple grain grain to leak down from the hole of leaking down being formed on the frame portion in the threshing cylinder direction of rotation downstream of accepting net, in the time that threshing is processed, in the head feeding type combined harvester (culm headdischarging type combine-harvester) of the root side by clamping conveying mechanism clamping conveying receipts harvested cereal culm, can suppress the generation of so-called card grain, , not from accept simple grain grain that net leaks down along with the rotation of threshing cylinder to receiving the root effluent of harvested cereal culm, and be discharged to outside machine together with threshing receipts harvested cereal culm after treatment with the state that is scattered in the root side of receiving harvested cereal culm, result can improve the organic efficiency of simple grain grain more effectively.

On the other hand, if accepting threshing chamber that net is configured in the direction of rotation downstream of above-mentioned threshing cylinder and form and form the hole of leaking down on parts with respect to above-mentioned, leaking down of the handled thing that this hole permission of leaking down is obtained by the threshing processing that utilizes the rotation of above-mentioned threshing cylinder to carry out, not only leak down from the mesh of accepting net by utilizing threshing that the rotation of threshing cylinder is carried out to process the handled thing obtaining, also leak down from being formed on the hole of leaking down that threshing chamber forms parts.In addition, can avoid being formed with in the frame portion in the case of accepting net the reduction of the issuable intensity of accepting net hole.That is, can strengthen area and accept without increasing the strength decreased that net can't cause accepting net, can promote leaking down of handled thing.

And; easily become the threshing chamber of accepting net, being positioned at the direction of rotation downstream of threshing cylinder of disperse state with respect to make handled thing kick up along with the rotation of threshing cylinder and form on parts due to the hole of leaking down is formed on; so with the hole of leaking down to be formed on to situation in above-mentioned frame portion identical; can promote especially simple grain grain such in handled thing from the leaking down of the hole of leaking down, due to cut off the phase specific masses such as straw or straw bits compared with the impact greatly and being easily subject to based on rotate the centrifugal force producing together with threshing cylinder.

Therefore; can guarantee large the leak down area corresponding with the high speed of operation; and accept net without increasing; and can not cause the reduction of the intensity of accepting net; thus, the treating capacity that can realize the high speed of following operation increases, and can promote leaking down of simple grain grain; can prevent that result can improve the recovering effect of simple grain grain and improve the quality of grain by bad damage causing of leaking down of simple grain grain etc.

In addition; owing to having promoted simple grain grain to form leaking down of the hole of leaking down parts from being formed on threshing chamber; so identical with the situation that forms the hole of leaking down in above-mentioned frame portion; the special generation that can suppress card grain in head feeding type combined harvester, result can more effectively improve the organic efficiency of simple grain grain.

In addition, form removably if above-mentioned threshing chamber is formed to parts, form parts owing to contacting with handled thing etc. wear and tear in the situation that at threshing chamber, can easily threshing chamber be formed to parts and be replaced by new parts.Therefore, more favourable aspect excellent at the maintainability that can easily carry out the replacing that threshing chamber forms parts.

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 discharge straw from threshing chamber is carried to the clamping of body rear; With the dust discharge path of fan, be arranged on the below of above-mentioned discharge straw conveying plant, will be discharged to outside body from the dust of sorting portion by dust exhausting fan; Wind-force dust discharge path, is arranged on the below in the above-mentioned dust discharge path with fan, in order to will be discharged to outside body from the dust of above-mentioned sorting portion by sorting wind; Dust discharge control volume, opens and closes above-mentioned wind-force dust discharge path; Link gear, get around and above-mentionedly link with above-mentioned dust discharge control volume with the dust discharge path of fan from above-mentioned conveying guide rod, by the above-mentioned conveying guide rod being produced by above-mentioned link gear and the interlock of dust discharge control volume, when above-mentioned conveying guide rod leaves and sets interval when above with respect 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 is positioned at while being less than the position at above-mentioned setting interval (D) with respect to above-mentioned annular rotating link chain, 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 for example device shown in Japanese kokai publication hei 4-84825 communique (JP4-084825).

This sheller unit has: the selection by winnowing portion that is built-in with sorting unit; The straw bits that the chaff sieve that should have from sorting unit is discharged are discharged to the dust-exhausting port machine together with sorting wind; With the dust discharge control panel arranging to open and close the mode of this part on this dust-exhausting port.

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

Having in the sheller unit of above-mentioned dust discharge control volume; in the time that the handled thing amount of sorting portion is many; because the handled thing quantitative change of the discharge use producing in sorting portion is many; so for opening posture, the dust that is difficult for generation single treatment thing or after-treatment thing to the handled thing of discharging use is promptly discharged is sneaked into by dust discharge control volume handover operation.In the time that the handled thing amount of sorting portion is lacked, because handled thing easily disperses by sorting wind, thus be closed posture by dust discharge control volume handover operation, so that the loss that suppresses or avoid grain to discharge together with sorting wind.

If adopt above-mentioned existing technology, the switching that can automatically carry out dust discharge control volume is switched.But, must have dust discharge control volume is carried out to the actuator of opening and closing operations and the controlling organization of operate actuator and testing agency, operating mechanism has the tendency that becomes large.

Therefore, for a kind of suitable automatic shutter that can carry out by small-scale operating mechanism dust discharge control volume is provided, and the sheller unit that carries out of the bad spot of the action that can easily avoid its operating mechanism, in a preferred embodiment, take the formation described in technical scheme 7 as feature.This formation has the following advantages.

Form according to this feature, in the time that the handled thing quantitative change of sorting portion is many, automatically handover operation is for opening posture for dust discharge control volume, and in the time that the handled thing quantitative change of sorting portion is lacked, dust discharge control volume automatically handover operation is closed posture.

,, in the time being supplied to the paddy stalk amount of threshing chamber and increasing, the handled thing amount of supplying with in order to carry out sorting process to sorting portion from threshing chamber increases.It is many that the quantitative change of straw is discharged in the threshing of now, discharging from threshing chamber.So to discharge the quantitative change of straw many by discharging threshing that straw conveying plant carries, carry guide rod to away from annular rotating link chain side shifting.

In the time supplying with the paddy stalk amount minimizing of threshing chamber, the handled thing amount of supplying with in order to carry out sorting process to sorting portion from threshing chamber reduces.The quantitative change that straw is discharged in the threshing of now, discharging from threshing chamber is few.So the quantitative change that straw is discharged in the threshing of carrying by discharge straw conveying plant is few, carries guide rod to approaching annular rotating link chain side shifting.

Thus, if according to the interval variation that is accompanied by the threshing of discharging straw conveying plant and discharges between conveying guide rod and the annular rotating link chain of variation of the amount of straw, set aptly above-mentioned setting interval, in the case of more than the handled thing amount of sorting portion, owing to carrying guide rod and annular rotating link chain to leave, and due to the interlock of the conveying guide rod being produced by link gear and dust discharge control volume, dust discharge control volume automatically switches to opens posture.In the case of the handled thing amount of sorting portion is few, owing to carrying, guide rod and annular rotating link chain are approaching, and due to the interlock of the conveying guide rod being produced by link gear and dust discharge control volume, dust discharge control volume automatically switches to closed posture.

In addition, as the link gear that dust discharge control volume is carried out to the operating mechanism of opening and closing operations, become the state that gets around the dust discharge path with fan, the dust of discharging by the dust discharge path with fan is difficult for being attached on link gear.

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

Above-mentioned link gear for example can adopt following formation.

In a preferred embodiment, it is characterized in that, above-mentioned link gear has: rotating gang axle, to be horizontally installed on the outside in the above-mentioned dust discharge path with fan along body with the state of above-mentioned conveying guide rod interlock, and be rotated operation by above-mentioned conveying guide rod with respect to moving of above-mentioned annular rotating link chain; Linkage, makes being positioned at and being positioned at threshing feed chain side opposition side and being positioned at the outside end interlock in above-mentioned wind-force dust discharge path with respect to above-mentioned wind-force dust discharge path of the end of threshing feed chain side opposition side and the rotation fulcrum of above-mentioned dust discharge control volume with respect to above-mentioned discharge straw conveying plant of above-mentioned rotating gang axle.

According to this formation, rotating gang axle and linkage, along the periphery in the dust discharge path with fan, make link gear get around reliably the dust discharge path with fan, the action of carrying guide body can be passed to dust discharge control volume swimmingly simultaneously.

Therefore, can avoid well that to adhere to the action causing bad due to the dust of link gear, the switching that can carry out swimmingly dust discharge control volume is simultaneously switched.

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

According to this formation, switching to and opening after posture away from moving with respect to annular rotating link chain at dust discharge control volume by conveying guide rod, further increase and carry guide rod further to carry out away from movement with respect to annular rotating link chain if straw amount is discharged in threshing, absorb the movement of carrying guide rod by the sliding-contact of cam body and abutting part, can make to carry the action of guide rod can not be delivered to dust discharge control volume.

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

In a preferred embodiment, above-mentioned link gear has delay device, move to while being positioned at respect to above-mentioned annular rotating link chain the position that is less than above-mentioned setting interval at above-mentioned conveying guide rod, this delay device postpones the closing motion of above-mentioned dust discharge control volume, so that above-mentioned dust discharge control volume switches to closed posture 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, even if discharging straw amount, threshing reduces, dust control volume can not switch to closed posture immediately yet, but can after the actual minimizing of the handled thing amount of sorting portion, switch to closed posture.

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

Therefore; discharge straw minimizing even if discharge the threshing of straw conveying plant; before the actual minimizing of handled thing amount of sorting portion; dust discharge control volume maintains opens posture; after the actual minimizing of handled thing amount of sorting portion; dust discharge control volume handover operation is closed posture, irrelevant with the variation of paddy stalk amount that is supplied to threshing chamber, and the grain that the dust that can suppress accurately grain is sneaked into and produced due to wind-force dust discharge path is discharged.

Feature for other forms and forms brought into play favourable effect by this feature, by becoming clear and definite with reference to accompanying drawing the following explanation of reading.

Accompanying drawing explanation

Fig. 1 is the vertical profile end view of the sheller unit of the 1st embodiment.

Fig. 2 is the vertical profile rearview of threshing portion.

Fig. 3 is the vertical profile rearview of wanting portion that represents the mounting structure of guided plate.

Fig. 4 is the end view of wanting portion that represents the shape of guided plate.

Fig. 5 is the end view of wanting portion of another embodiment of representing that guided plate is made up of four plate bodys.

Fig. 6 is the figure that represents the mounting structure of the guided plate of 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 of presentation graphs 6.

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

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

Figure 11 is the vertical profile end view of sheller unit.

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

Figure 13 represents that the 1st accepts the expansion vertical view of the formation of wet end.

Figure 14 represents that the 2nd accepts the expansion vertical view of the formation of wet end.

Figure 15 represents that the 1st accepts the vertical profile front view of the formation of wet end.

Figure 16 represents that the 1st accepts the rearview of wanting portion of the formation of wet end.

Figure 17 represents that threshing chamber forms the vertical profile end view of wanting portion of the formation of parts.

Figure 18 is the figure that represents the opening adjusting structure of the movable part of chaff sieve.

Figure 19 represents that the threshing chamber of another embodiment forms the vertical profile end view of wanting portion of the formation of parts.

Figure 20 is the vertical profile end 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, (b) is the end view under posture of opening of dust discharge control volume.

Figure 22 is sheller unit arranges portion rearview at link gear.

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

Figure 24 (a) is that dust discharge control volume is the vertical view of opening the delay device under the state of posture, (b), (c), (d) be the vertical view that represents the active state of delay device.

Figure 25 (a) is that dust discharge control volume is the end view of opening the delay device under the state of posture, (b), (c), (d) be the end view that represents the active state of 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 that represents the detailed construction of antihunting device.

Figure 30 is the vertical view that represents the detailed construction of antihunting device.

Figure 31 is the end view that represents the detailed construction that swings limiting mechanism.

Figure 32 is the vertical view that represents the detailed construction that swings limiting mechanism.

Figure 33 is the block diagram of control device.

Figure 34 is the end view that represents the travel condition with the crawler travel device that swings limiting mechanism.

Figure 35 is the end view that represents the travel condition without the crawler travel device that swings limiting mechanism.

Embodiment

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

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

[the 1st embodiment]

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

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

Threshing portion 4 is configured to be had: clamping receive the root side of harvested cereal culm C and by receive harvested cereal culm C with left and right towards the clamping conveying mechanism 7 carried of posture, by take front and back towards fulcrum 8 as the left direction of fulcrum in the time observing from behind drive rotation to receive the fringe head side of harvested cereal culm C and implement the threshing cylinder 9 of threshing processing and make that the handled thing that obtained by this threshing processing sorting portion 5 downwards leaks down accept net 10 etc.Be formed with and send dirt mouth 11 at the rear of accepting net 10, this send dirt mouth 11 not make not to flow down from accepting handled thing that net 10 leaks down sorting portion 5 downwards.

; by the threshing processing of being undertaken by this threshing portion 4; the many handled things of amount of the grain of simple grain grain or band branch stalk etc. leak down to the sorting direction upstream side (toe lateral) of sorting portion 5 from accepting net 10; in addition the amount handled thing how that, cuts off straw or straw bits etc. is from sending dirt mouth 11 to flow down to the sorting direction downstream (rear portion side) of sorting portion 5.

Sorting portion 5 is configured to be had the swing sorting mechanism 12 to swing sorting from the handled thing of threshing portion 4 and generates the selection by winnowing fan (winnowing fan) 13 etc. that the handled thing from threshing portion 4 is carried out to the sorting wind of pneumatic separating.In addition; by handled thing being swung to sorting and pneumatic separating, elect as the simple grain grain of a thing using dividing from the handled thing of threshing portion 4, obstruct the mixture of grain or straw bits etc. and cut-out straw or straw bits etc. as three things as the band branch of secondary thing.

Recoverer 6 forms by being formed on first recoverer 14 of below of the sorting direction upstream side that swings sorting mechanism 12 and the second recoverer 15 etc. that is formed on the below in the sorting direction downstream that swings sorting mechanism 12.

The first recoverer 14 reclaims a thing by 5 sortings of sorting portion, and by along left and right towards the first screw rod 16 that is provided in its bottom, by the thing reclaiming outside the figure being connected with its right-hand member, raise square auger conveying.

The second recoverer 15 reclaims the secondary thing by 5 sortings of sorting portion, and by along left and right towards be provided in its bottom the second screw rod 17, by reclaim secondary thing to is connected with its right-hand member second reduce screw rod (there is no label) conveying.

In addition, raise and send screw rod to raise to send the thing transporting by the first screw rod 16, and be supplied in the grain container being set up in parallel the figure of the right-hand side of sheller unit 1 from top.The second reduction screw rod is being implemented the secondary thing transporting by the second screw rod 17 after the processing of threshing again, raises and send and revert to swing 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, between them, be formed with threshing mouth 20, this threshing mouth 20 can and be accepted between net 10 to threshing cylinder 9 and supply with the receipts harvested cereal culm C that is clamped conveying by clamping conveying mechanism 7.

Clamping conveying mechanism 7 is by forming with lower member etc.: feeding chain 21, and carry the mode of the conveyor surface 21A that receives 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 shifted up and down and be bearing in the bottom of this track platform 22; And multiple pressing springs 24 of pressing, gripper rail 23 is applied to the active force of decline towards the conveyor surface 21A of feeding chain 21.

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

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

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

End (front end) at the throughput direction upstream side of the receipts harvested cereal culm C of each plate body 25A, 25B is formed with paddy stalk guide portion 25a, 25b, described paddy stalk guide portion is offside offside in top in this throughput direction upstream side, and the receipts harvested cereal culm C being carried by clamping conveying mechanism 7 is guided downwards.In the present embodiment, by being set on the front upper angle at each plate body 25A, 25B, rake forms paddy stalk guide portion 25a, 25b (with reference to Fig. 6 and Fig. 7).But, about the shape of paddy stalk guide portion 25a, 25b, as long as offside offside in the shape of top in throughput direction upstream side, also can be other shapes, for example, at each plate body 25A, the front upper angle place of 25B forms fillet etc., also can guarantee in this case below guiding function.

By above formation, along with the rotation of threshing cylinder 9 is guided to threshing cylinder 9 by guided plate 25 to the grain the root effluent of receipts harvested cereal culm C from the top of threshing cylinder 9, thus, can prevent that this grain from entering the generation that blocks grain by the root side of the receipts harvested cereal culm C that carries of clamping conveying mechanism 7, the grain that can prevent from entering the root side of receiving harvested cereal culm C is discharged to the generation of the unfavorable condition outside machine together with threshing receipts harvested cereal culm after treatment C.

In addition, cause that guided plate 25 is out of shape or damaged in the situation that, without changing whole guided plate 25, can solve by the plate body 25A, the 25B that change its distortion or damaged part being blocked in due to handled thing between threshing cylinder 9 and guided plate 25 etc.

And, when being held receipts harvested cereal culm C that conveying mechanism 7 clamping carries and being transported to each plate body 25A of guided plate 25, when 25B, 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 receiving harvested cereal culm C by clamping conveying mechanism 7, can not hang over each plate body 25A so receive harvested cereal culm C, on the ora terminalis of the throughput direction upstream side of 25B, thus, can avoid in advance the conveying that tangles the receipts harvested cereal culm C causing because of this to stop up, or the reduction etc. of the threshing performance that causes by receiving the confusion of conveying posture (threshing posture) of harvested cereal culm C.

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

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

, because pressing plate 27 is protected guided plate 25 and is not subject to the impact of the handled thing flowing down to guided plate 25, so can prevent that guided plate 25 from, due to the wearing and tearing that occur with contacting of handled thing, can improve the durability of guided plate 25.

In addition, the part that can prevent from cutting off straw etc. enters between top lip of slice 19 and guided plate 25 or between guided plate 25 and pressing plate 27, and thus, can prevent from cutting off straw etc. becomes the state of tangling so that threshing is processed and produced harmful effect because this enters.

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

By this formation, by the rotation of threshing cylinder 9, along with the receipts harvested cereal culm C that is clamped conveying by clamping conveying mechanism 7 is drawn in to threshing cylinder 9, the gripper rail 23 of clamping conveying mechanism 7 is shifted to threshing cylinder 9, even if like this, bar at the receipts harvested cereal culm C that is held conveying mechanism 7 clamping conveyings is depressed, 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 from guided plate the bolt 28 of use and the position that nut 29 leaves to left lateral outer side are installed.

Thus, with gripper rail 23 is configured in from top lip of slice 19 left foreign side away from position to can avoid, with guided plate, the bolt 28 of use is installed or the situation that nut 29 contacts is compared, can save space, simultaneously can avoid in advance clamping the conveying of the receipts harvested cereal culm C in conveying mechanism 7 and stop up, this conveying is stopped up because gripper rail 23 hangs over guided plate and the rising displacement institute that has limited gripper rail 23 on the bolt 28 of use or nut 29 is installed is caused.

[other embodiments]

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

For example can as shown in Figure 5, form guided plate 25 by arranging along the throughput direction of receiving harvested cereal culm C four plate body 25A～25D that are equipped with.Or, though not shown, can form guided plate 25 by arrange three plate bodys or five the above plate bodys that are equipped with along the throughput direction of receiving harvested cereal culm C.

In the above-described configuration, end at the throughput direction upstream side of the receipts harvested cereal culm C of each plate body is formed with paddy stalk guide portion 25a, 25b etc., described paddy stalk guide portion is offside offside in top in this throughput direction upstream side, and the receipts harvested cereal culm C being carried by clamping conveying mechanism 7 is guided downwards.

[2] in addition, as shown in Figure 6, the mode that makes guided plate 25 enter the inner side of the rotational trajectory K on threshing tooth 26 tops with the end of its threshing cylinder side is extended to threshing cylinder side, and on the end of this threshing cylinder side, arranging and allow the threshing tooth that threshing tooth 26 passes through to pass through portion, is so also favourable.Below represent two concrete examples.

(a) in the example depicted in fig. 7, plate body 25A, the 25B of guided plate 25 materials by elastically deformables such as rubber slabs (resin) system form, and the end of its threshing cylinder side is formed as entering into the inner side of the rotational trajectory K top of the threshing tooth 26 that threshing cylinder 9 has drawing along with the rotation of threshing cylinder 9.And, on the end of the threshing cylinder side of plate body 25A, 25B, threshing cylinder side opening be formed with slit (slits) (threshing tooth by an example of portion) 31, allow threshing tooth 26 to pass through thereby this slit 31 becomes open state by strain from closed condition.

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

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

(b) inner side of the rotational trajectory K that draw along with the rotation of threshing cylinder 9 on the top that the end that in the example depicted in fig. 8, guided plate 25 is formed as its threshing cylinder side relatively shallowly enters the threshing tooth 26 that threshing cylinder 9 has.And, on the end of this threshing cylinder side, at threshing cylinder side opening and be relatively shallowly formed with the recess (roundedrecesses) (threshing tooth is by an example of portion) 32 that allows the R shape that the top of threshing tooth 26 passes through.

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

For the shape of each recess 32, for example can be formed as the shape (being R shape (rounded)) approaching very much with the shape on the top of threshing tooth 26 in the example of Fig. 7.Thus, the space between recess 32, threshing tooth 26 is necessary Min., can suppress grain from this space to receiving the root effluent of harvested cereal culm.For this purpose, preferably make the inner side of the rotational trajectory K that roughly draw on the overall top that is positioned at threshing tooth 26 of each recess 32.

[3] for the material of guided plate 25, be not particularly limited.For example can be formed by multiple plate bodys of sheet metal system etc.Or also can by the material of elastically deformable or not the material of elastically deformable form each plate body.

In addition, preferably form guided plate 25 by the material (rubber slab etc.) of elastically deformable at above-mentioned other embodiment [2] in (a), 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: be formed as harvesting delivery section 103, the sheller unit 104 that is mounted in left side, the sack-filling device 105 that is mounted in right back portion that the organism frame 101 of frame shape, the crawler-tread 102 that is equipped in the pair of right and left of the bottom of base frame 101, liftable be swingingly attached at left front portion, be formed on the running portion 106 of taking of right front portion and be mounted in engine 107 of right front portion etc. by cornue material etc.

The crawler-tread 102 of left and right is by the power drive coming 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 that has in running portion 106 or secondary gear lever 109 and speed change, under its driving condition, according to the swinging operation of direction to the left and right of control stick 110 of taking the shuttle-type neutral reply type of the cross having in running portion 106, the craspedodrome state being driven by constant speed at the crawler-tread of left and right, and switch between the differential revolution travel condition of the crawler-tread of left and right.

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, the multiple distributors 111 that are arranged in top will gather in the cropss object on one side and plant paddy stalk and comb on each plantation bar comb point one side, multiple heaving mechanisms 112 are set harvesting posture by the plantation paddy stalk pull-up after itemize, the root side that the reaping apparatus 113 of hairclipper type cuts the plantation paddy stalk being pulled up, stalks conveying apparatus 114 is received the plantation paddy stalk after cutting harvested cereal culm on one side and is changed into the posture of laying across that threshing uses and carry to sheller unit 104 on one side from the posture that erects of harvesting use.

In addition, according to the swinging operation of the direction forwards, backwards of control stick 110, the hydraulic up-down cylinder (not shown) being 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 shown in Figure 11 and Figure 12, sheller unit 104 is configured to be had with lower member etc.: threshing portion 117, receiving harvested cereal culm and the fringe head side of receiving harvested cereal culm implemented to threshing processing on one side by being attached at lower case on organism frame 101 115 and can opening and closing in the processing space that the upper body 116 that is swingingly attached in this lower case 115 forms, rearward carrying on one side; Sorting portion 118, carries out sorting process to the handled thing obtaining by this threshing processing; And recoverer 119, reclaim the thing and the secondary thing that are obtained by this sorting process.

Threshing portion 117 is configured to be had with lower member etc.: clamping conveying mechanism 120, clamping receive the root side of harvested cereal culm and with left and right towards posture carry and receive harvested cereal culm; Threshing cylinder 9, by take front and back towards fulcrum 121 the fringe head side of receiving harvested cereal culm is implemented to threshing processing as the right-hand driving rotation of fulcrum when observing from front; And accept net 123, the handled thing that obtains by this threshing processing sorting portion 118 is downwards leaked down.Be formed with at the rear of accepting net 123 and do not make not from what accept that handled thing that net 123 leaks down sorting portion 118 downwards flows down to send dirt mouth 124.

; by the threshing processing in this threshing portion 117; the many handled things of amount of the grain of simple grain grain or band branch stalk etc. leak down to the sorting direction upstream side (toe lateral) of sorting portion 118 from accepting net 123; in addition the amount handled thing how that, cuts off straw or straw bits etc. is from sending dirt mouth 124 to flow down to the sorting direction downstream (rear portion side) of sorting portion 118.

Sorting portion 118 is configured to be had the swing sorting mechanism 125 to swing sorting from the handled thing of threshing portion 117 and generates the selection by winnowing fan 126 etc. that the handled thing from threshing portion 117 is carried out to the sorting wind of pneumatic separating.In addition; by handled thing being swung to sorting and pneumatic separating, can elect as the simple grain grain of a thing, as the mixture of band branch stalk grain or the straw bits etc. of secondary thing and as the dust of cut-out straw or the straw bits etc. of three things dividing from the handled thing of threshing portion 117.

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

The first recoverer 127 reclaims a thing by 118 sortings of sorting portion, and by along left and right towards the first screw rod 129 that is provided in its bottom, send screw rod 131 (with reference to Figure 10) conveying by the thing reclaiming to raising of being connected with its right-hand member.

The second recoverer 128 reclaims the secondary thing by 118 sortings of sorting portion, and by along left and right towards be provided in its bottom the second screw rod 130, by the secondary thing of recovery to be connected with its right-hand member second reduce screw rod 132 carry.

As shown in Figure 10 and Figure 11, raise and send screw rod 131 to raise to send the thing transporting by the first screw rod 129, and be supplied to and be set up in parallel in the grain storage part 133 of the sack-filling device 105 of the right side side of sheller unit 101.The second reduction screw rod 132 is being implemented the secondary thing transporting by the second screw rod 130 after the processing of threshing again, raises and send and revert to swing sorting mechanism 125.

As shown in Figure 11 and Figure 12, threshing cylinder 9 is configured to has multiple threshing tooths 135 that are bent to form as V font roughly etc. on the peripheral part that is formed as threshing cylinder main body 134 cylindraceous.

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

Respectively accept wet end 136,137 by being formed as clathrate with lower member: multiple and multiple curved plates 138,139, to be set up in parallel in the direction along fulcrum 121 with the orthogonal posture of the fulcrum 121 of threshing cylinder 9; With multiple and multiple straight line steel 140,141, be set up in parallel along the periphery of threshing cylinder 9 with the posture of the fulcrum 121 along threshing cylinder 9.

Respectively accepting in wet end 136,137, set bending part 138A, 138B, 139A, 139B is formed as larger than other bending part so that their both ends as the cross section at two ends of strengthening being positioned at the threshing cylinder direction of rotation of respectively accepting wet end 136,137 be roughly straight line steel 140A, 140B, the 141A of コ font, the ribs of 141B plays a role.

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

The 123A of frame portion in the direction of rotation downstream that is positioned at threshing cylinder 9 of accepting net 123 the 1st accepts on the straight line steel 140A of wet end 136, the hole 144 of leaking down of multiple essentially rectangulars that the handled thing that permission obtains by the threshing processing that utilizes the rotation of threshing cylinder 9 to carry out leaks down is formed as follows, on the length direction of straight line steel 140A, the state leaving with the end of bending part 138A, 138B from set, 139A, 139B, arranged side by side with set spacing.

As shown in Figure 12 and Figure 17, in threshing portion 117, in the direction of rotation downstream of threshing cylinder 9 with respect to accepting net 123, in the direction of the fulcrum 121 along threshing cylinder 9, dispose side by side multiple stalk cuttves 145 of cutting with both determining deviations.

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

Support unit 148 threaded connection is removably forming on the front and rear wall 146,147 of threshing chamber, and the threshing chamber that bolt is linked with the sheet metal system that forms threshing chamber together with accepting net 123, front and rear wall 146,147 and support unit 148 etc. removably in its underpart forms parts 149.

Threshing chamber forms parts 149 and is forming to the gamut of accepting net 123 from support unit 148, thus, can, by not guiding to multiple stalk cuttves 145 of cutting from accepting the handled thing that net 123 leaks down, can utilize multiple cut-out straws of cutting length contained in stalk cuttves 145 these handled things of chopping.

Be welded with the support unit 150 of sheet metal system in the bottom of threshing chamber formation parts 149, these support unit 150 gears meet the 123A of frame portion in the direction of rotation downstream that is positioned at threshing cylinder 9 of accepting net 123.In addition, the guide surface (with the opposed face of threshing cylinder 9) that forms boot process thing in parts 149 at threshing chamber is upper, allows to be processed and the hole 151 of leaking down of the multiple essentially rectangulars that leak down of the handled thing that obtains forms at threshing chamber on the length direction of parts 149 and forms side by side with set spacing by the threshing that utilizes the rotation of threshing cylinder 9 to carry out.

According to above-mentioned formation, the handled thing being obtained by the threshing processing that utilizes the rotation of threshing cylinder 9 to carry out not only leaks down from the mesh of accepting net 123, also leaks down from the hole 144,151 of respectively leaking down., can increase and leak down area and accept net 123 without increasing, thereby can promote leaking down of handled thing.

And, due to the hole 144 of respectively leaking down, 151 are formed on and accept net 123, the handled thing of easily kicking up makes handled thing become disperse state along with the rotation of threshing cylinder 9, be positioned at the 123A of frame portion (the 1st accepts the straight line steel 140A of wet end 136) in threshing cylinder direction of rotation downstream, or the threshing chamber that is positioned at threshing cylinder direction of rotation downstream of accepting net 123 forms on parts 149, rather than be formed on and accept net 123, handled thing easily becomes the 123B of frame portion of the direction of rotation upstream side that is positioned at threshing cylinder 9 of stacking states, and (the 2nd accepts each straight line steel 141A of wet end 137, 141B or the 1st accepts the straight line steel 140B of wet end 136) etc. on, so can promote especially simple grain grain such in handled thing from the hole 144 of respectively leaking down, 151 leak down: due to cut off the phase specific masses such as straw or straw bits large, so be easily subject to due to the simple grain grain of impact that rotates the centrifugal force producing together with threshing cylinder 9.

Its result is, can effectively prevent the generation due to the bad grain damage causing of leaking down of simple grain grain, can improve the quality of grain.

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

And, form parts 149 due to wearing and tearing with contacting of handled thing etc. at threshing chamber, can easily only threshing chamber be formed to parts 149 and be replaced by new parts.

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

Chaff sieve 155 is configured to, and in the front and back central authorities on the top of sieve shell 153, disposes multiple movable scalping flange plates (チ ヤ Off リ Star プ plate) 160 and fixed scalping flange plate 161 along fore-and-aft direction with certain arranged with interval.Movable each scalping flange plate 160 upper end pivotable is separately bearing on sieve shell 153, and lower end separately links by connecting member 162 interlock, to can carry out take their upper end as the one swinging operation of the direction forwards, backwards of fulcrum.

On the movable scalping flange plate 160 of the front and back central authorities that are configured in them in multiple movable scalping flange plates 160, be equipped with the linking arm 163 swinging as fulcrum one take its upper end.In addition, on the free end of this linking arm 163 and the gamut of sieve shell 153, set up extension spring 164 via linking arm 163 and connecting member 162, this extension spring 164 swings the application of force to movable each scalping flange plate 160 to the side of closing that path narrows that flows down that is formed on handled thing between them.In addition, on the free end of linking arm 163, be connected with action bars 165 via connecting strand 166, this action bars can overcome movable each scalping flange plate 160 of active force of extension spring 164 to the swinging operation of opening direction.

Action bars 165 is configured in the rear of sack-filling device 105 together with guided plate 167, and direction is carried out swinging operation up and down, can be by remaining on desired operating position with the engaging of guided plate 167.

; by action bars 165 being carried out to swinging operation on above-below direction; the aperture of the movable part 155A being formed by multiple movable scalping flange plates 160 of adjustable chaff sieve 155; by action bars 165 being fastened on guided plate 167 at the operating position place that obtains desired aperture, chaff can being sieved to the aperture of 155 movable part 155A and set and remain desired aperture.

On sieve shell 153, be equipped with retainer 168, this retainer 168 by with the connecing to the swing of the draw direction to extension spring 164 that limits linking arm 163 of the free end of linking arm 163, prevent that thus the movable part 155A of chaff sieve 155 from becoming full-shut position under the effect of the active force of extension spring 164.

Thus; even if removed being connected of action bars 165 and linking arm 163 in the case of cutting off due to connecting strand 166 to wait; the aperture that also can prevent the movable part 155A of chaff sieve 155 becomes full-shut position; can make simple grain grain etc. leak down from the movable part 155A of chaff sieve 155, result can be brought into play swing sorting function.

[other embodiments]

[1] handled thing of sheller unit of the present invention can be leaked down to structure applications in the ordinary combine harvester of full stalk execution threshing processing or the sheller unit of full stalk feed type combine harvester (whole culm discharging type combine-harvester) that are configured to receiving harvested cereal culm.

[2] as accepting net 123, can adopt curling net or resin web, also can adopt the net of accepting being formed by punch metal etc.

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

[4] as shown in figure 19, can be configured to the mode of accepting net 123 in the bottom of support unit 148 to cross over from support unit 148 weld be formed with multiple leak down the threshing chamber of sheet metal system in hole 151 form parts 149, form parts 149 when wearing and tearing with contacting of handled thing etc. at threshing chamber, threshing chamber is formed to parts 149 together with support unit 148 and be replaced by new parts.

[5] leak down quantity and the shape etc. in hole 144,151 can be carried out various changes.

[6] can be not on net 123, do not form the hole 144 of leaking down accepting yet, and only form and on parts 149, form the hole 151 of leaking down at threshing chamber.

[the 3rd embodiment]

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

Figure 20 is the vertical profile end view of the sheller unit of present embodiment.As shown in the drawing, the sheller unit of present embodiment has: threshing portion 210, has and be arranged on the outside threshing feed chain 211 of body 201 and be arranged on the anterior threshing chamber 212 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 second auger conveyor 203 of the bottom of above-mentioned sorting portion 230; Be arranged on continuously the discharge straw treating apparatus 250 at the rear portion of above-mentioned body 201.

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

, above-mentioned threshing portion 210 except have above-mentioned threshing feed chain 211 and above-mentioned threshing chamber 212, also have be arranged on threshing chamber 212 bottom accept net 213, the threshing processing of receiving harvested cereal culm.

, threshing feed chain 211 is carried the root side direction body rear side clamping of receiving harvested cereal culm on one side the fringe head side of receiving harvested cereal culm is supplied to threshing chamber 212 on one side.Threshing chamber 212 has the threshing cylinder 9 that drives rotation to arrange freely around the axle center of body fore-and-aft direction in threshing chamber, by threshing cylinder 9, the fringe head side of supplied with receipts harvested cereal culm is carried out to threshing processing.Threshing feed chain 211 is discharged straw by threshing and is passed out to the rear of threshing chamber 212 from the dirt mouth 215 that send of the rearward end that is positioned at threshing chamber 212.

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

As shown in Figure 20, Figure 22, carry the conveying top side of guide rod 222 and feeding terminal side via upper end be attached at the body carried on guide rod 222 up and down towards connecting rod 223 be bearing on the support unit 224 of body side.Carry the above-mentioned support unit 224 of top side to be fixed on the chain guide that the above-mentioned threshing feed chain 211 of guiding advances.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 top side and feeding terminal side slides up and down and supports freely above-mentioned connecting rod 223.Above-mentioned each connecting rod 223 is applied the power of rising by spring 225, this spring 225 is configured in to be carried between guide rod 222 and above-mentioned support unit 224 and is arranged on connecting rod 223.Thus, carry guide rod 222 by above-mentioned spring 225 application of forces to approach the mode application of force of annular rotating link chain 221.

Discharging straw conveying plant 220 is undertaken on the root side of the threshing discharge straw of discharging from threshing chamber 212 annular rotating link chain 221 and carries between guide rod 222 from threshing feed chain 211, the threshing accepted is like this discharged to straw and be positioned at the crossbearer posture on the supporting track (not shown) of fringe head side its fringe head side is positioned in than above-mentioned discharge straw conveying plant 220, 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.Annular rotating link chain 221 is configured to the closer to feeding terminal side larger apart from the distance of threshing feed chain 211, discharges straw conveying plant 220 and makes threshing discharge straw move to the opposition side of threshing feed chain side with respect to body 201 on one side, carries on one side.

In the time that the quantitative change of straw is discharged in the threshing of carrying by discharge straw conveying plant 220, the quantitative change of straw is discharged in threshing, carry thus guide rod 222 to discharge the reaction force of straw by the operating physical force of above-mentioned spring 225 with from threshing, with respect to annular rotating link chain 221 away from or approaching mode move.Thus, the interval of discharging the larger conveying guide rod 222 of straw amount and annular rotating link chain 221 is larger, and the interval of discharging the less conveying guide rod 222 of straw amount 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.Chopping housing 252 has lid 254 switching above-mentioned discharge straw input port 251, that swing is installed freely, have around the horizontal axle center of body and drive and rotate the cutter shaft 255 and the supply shaft 256 that arrange freely in enclosure interior, there is the chopping straw outlet 257 of the below that is arranged on above-mentioned cutter shaft 255 and supply shaft 256.

In the time that above-mentioned lid 254 is carried out to shutoff operation, 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 under the outer surface side direction of lid 254 to long straw outlet 253, and drop to the ground at body rear from this long straw outlet 253 with the state of long straw.

In the time that above-mentioned lid 254 is carried out to opening operation, discharging straw treating apparatus 250 becomes the treatment state that chopping is discharged.So, discharging straw treating apparatus 250 makes 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 bite of collar plate shape arranged side by side and that freely one is rotated on its axis direction and the supply cutter of the collar plate shape that one is rotated side by side and freely on its axis direction that above-mentioned supply shaft 256 has that utilize above-mentioned cutter shaft 255 to have, in shaft direction, shred, and make the discharge straw of the state that shreds drop to ground from chopping straw outlet 257.

Above-mentioned sorting portion 230 except thering is above-mentioned oscillatory sorting device 231, also have the front that is arranged on this oscillatory sorting device 231 below selection by winnowing fan 232 and be arranged on the processing rotary body 233 at the above-mentioned rear of sending dirt mouth 215.

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

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

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

Above-mentioned the first auger conveyor 202 passes out to the single treatment thing falling from oscillatory sorting device 231 lateral outer side of body 201, and is supplied to and winnows in device 204.This device 204 of winnowing is sent into threshing grain in the grain container (not shown) of combine.Above-mentioned the second auger conveyor 203 passes out to the after-treatment thing falling from oscillatory sorting device 231 lateral outer side of body 201, and is supplied to reduction apparatus 205.This reduction apparatus 205 is transported to after-treatment thing going back in stomodaeum on the horizontal sidewall that is arranged on body 201, and goes back that stomodaeum is sent in body and the top side that reverts to oscillatory sorting device 231 from this.

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

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

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

Above-mentioned wind-force dust discharge path B is formed by the part 242a of the below that is positioned at 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 above-mentioned dust discharge path A with fan.This dust outlet 245 is towards long straw outlet 257 openings of above-mentioned chopping housing 252.

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

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 that enters a little body inner side compared with above-mentioned dust outlet 245.As shown in figure 22, above-mentioned dust discharge control volume 260, via the one rotation rotation fulcrum 261 of end disposed thereon freely, swings and is bearing in freely on the horizontal sidewall 201a of 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, dust discharge control volume 260 in the time that the body lateral shaft mind-set decline side oscillation of this rotation fulcrum 261 operates, becomes closed posture when the rotation operation by above-mentioned rotation fulcrum 261.So dust discharge control volume 260 becomes the posture of intersecting with the handled thing flow direction of wind-force dust discharge path B, to suppress handled thing by wind-force dust discharge path B.

Figure 21 (b) is the end view under posture of opening of dust discharge control volume 260.As shown in the drawing, dust discharge control volume 260, becomes and opens posture when the rotation operation by above-mentioned rotation fulcrum 261 in the time of the body lateral shaft mind-set uplifted side swinging operation of this rotation fulcrum 261.So dust discharge control volume 260 becomes along the posture of the handled thing moving direction of wind-force dust discharge path B, so that handled thing is easily by wind-force dust discharge path B.

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

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 and has: the linkage L with above-mentioned swing arm 271; Be arranged on top outside along the horizontal rotating gang axle 272 of body of the above-mentioned dust discharge path A with fan; Above-mentioned connecting rod 223; And the cam-type linkage portion 280 arranging on the gamut of the end of the threshing feed chain side of this connecting rod 223 and above-mentioned rotating gang axle 272.

Aforementioned link mechanism L is except having above-mentioned swing arm 271, also there is swing arm 273, this swing arm 273 rotate be integratedly arranged on freely above-mentioned rotating gang axle 272 be provided with on the end of a side opposition side of above-mentioned cam-type linkage portion 280, and there is the interlock connecting rod 274 that links this swing arm 273 and above-mentioned swing arm 271.This linkage L is positioned at respect to above-mentioned dust discharge path A and dust discharge control volume 260 and the dust discharge path A with fan of threshing feed chain side in opposition side and the outside of wind-force dust discharge path B with fan, and is positioned at the below of the path 226 of the threshing discharge straw 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, and rotation is integratedly arranged on the end of above-mentioned rotating gang axle 272 freely; With the drive disk assembly 282 being formed by pole material, be attached at the bottom of above-mentioned connecting rod 223 in the mode of extending to above-mentioned cam body 281.Cam-type linkage portion 280 is covered so that dust is difficult for adhering to by cover 285.

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

When carry guide rod 222 with respect to annular rotating link chain 221 away from mode move, or while moving in the mode approaching, cam-type linkage portion 280 makes to carry guide rod 222 and rotating gang axle 272 to link by abutting part 284 and the butt of cam body 281, makes thus to carry guide rod 222 and dust discharge control volume 260 to link as follows.

, they are linked as described below: when as shown in Figure 21 (b), carry guide rod 222 with respect to annular rotating link chain 221 away from movement, carry the interval between guide rod 222 and annular rotating link chain 221 to become while setting interval D, dust discharge control volume 260 becomes the above-mentioned posture of opening, when as shown in Figure 21 (a), carry guide rod 222 to approach mobile with respect to annular rotating link chain 221, and while carrying guide rod 222 and the interval of annular rotating link chain 221 to become the interval less than setting interval D (be less than and set interval), dust discharge control volume 260 becomes above-mentioned closed posture.

And then, exceed in the case of carrying guide rod 222 and the interval of annular rotating link chain 221 to become the interval (more than setting interval) of above-mentioned setting interval D, interlock as described below, the abutting part 284 that moves through with respect to annular rotating link chain 221 of the conveying guide rod 222 in this situation absorbs with respect to the sliding-contact of cam surface 283, and cuts off from carrying guide rod 222, to the transmission of dust discharge control volume 260, dust discharge control volume 260 is maintained to the above-mentioned posture of opening.

; link gear 270 makes to carry guide rod 222 and dust discharge control volume 260 to link; from carrying the outside of the position that is linked with connecting rod 223, top by the dust discharge path A with fan of above-mentioned feeding terminal side of guide rod 222 and the outside of the opposition side of the threshing feed chain side of dust discharge path A with fan; until the opposition side of the threshing feed chain side of dust discharge control volume 260, with the state interlock linking with dust discharge control volume 260.

Thus, when carrying guide rod 222 to move to when above away from above-mentioned setting interval D with respect to annular rotating link chain 221, dust discharge control volume 260 becomes with it the above-mentioned posture of opening in linkage, in the time carrying guide rod 222 to move to respect to annular rotating link chain 221 position that is less than above-mentioned setting interval D, dust discharge control volume 260 becomes with it above-mentioned closed posture in linkage.

When being supplied to the paddy stalk quantitative change of threshing chamber 212 when many, the handled thing amount that is supplied to sorting portion 230 from threshing chamber 212 increases, and the amount of the handled thing of the discharge use such as the straw bits that produce in sorting portion 230 increases.So the dust that single treatment thing or after-treatment thing easily occur is sneaked into.In the time being supplied to the paddy stalk amount minimizing of threshing chamber 212, the handled thing amount that is supplied to sorting portion 230 from threshing chamber 212 reduces.So, easily there is dispersing of the grain that caused by sorting wind.In the time being supplied to the paddy stalk amount of threshing chamber 212 and increasing, the threshing discharge straw amount that is supplied to discharge straw device 220 increases, carry the interval between guide rod 222 and annular rotating link chain 221 to increase, so as above-mentioned setting interval D, be set in sorting portion 230 interval producing in the situation that the handled thing amount of the discharge use producing increases.

Thus, in the time being supplied to the paddy stalk amount of threshing chamber 212 and increasing, dust discharge portion 240 by carry guide rod 222 with respect 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 operations for opening posture, and by the dust discharge path A with fan and wind-force dust discharge path B, the handled thing of the discharge use from sorting portion 230 is discharged to outside body.

In the time being supplied to the paddy stalk amount minimizing of threshing chamber 212, dust discharge portion 240 is by carrying guide rod 222 to move to the movement and the link gear 270 that are less than the position of above-mentioned setting interval D with respect to annular rotating link chain 221 distances, be automatically closed posture by dust discharge control volume 260 handover operations, and main by with fan dust discharge path A, the handled thing of the discharge use from sorting portion 230 being 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 of another embodiment 270 and the link gear 270 of previously described embodiment are compared, be configured at link gear 270 there is above-mentioned connecting rod 223, above-mentioned cam-type linkage part 280, above-mentioned rotating gang axle 272 and aforementioned link mechanism L this on the one hand, 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, the supporting slice 291 and the above-mentioned rotation fulcrum 261 that are rotated by one on the above-mentioned rotation fulcrum 261 that is arranged on freely above-mentioned dust discharge control volume 260 support; Feed screw axle 293, rotation is bearing on the horizontal sidewall 201a of body 201 freely; With driven wheel 295, be bearing in freely the driven wheel 295 on above-mentioned horizontal sidewall 201a to rotate with these feed screw axle 293 one the state rotation that the gear 294 that has freely engages.

Driven wheel 295 is driven all the time, drives into lead screw shaft 293 in the mode of rotating all the time.Pining down plate 292 is made up of latch plate.Supporting slice 291 has spring 297, and this spring 297 pins down plate 292 and is arranged on above-mentioned fulcrum post 296 via running through fulcrum post 296 supporting of inserting the base portion side that pins down plate 292.Above-mentioned spring 297 presses the application of force to pining down plate 292 to supporting slice 291, becomes even if pin down plate 292 mounting position that leaves supporting slice 291, is also easily returned to the mounting position contacting 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 of opening posture OP.Figure 25 (a) is the end view that dust discharge control volume 260 becomes the delay device 290 under the state of opening posture OP.As shown in these figures, when dust discharge control volume 260 becomes while opening posture OP, pining down plate 292 becomes the mounting position that is positioned at the position of leaving a little upward from feed screw axle 293.

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

As shown in these figures, when link gear 270 is along with carrying guide rod 222 to move to and be less than the position of above-mentioned setting interval D and while moving with respect to annular rotating link chain 221, due to the rotation of the rotation fulcrum 261 by being caused by the swinging operation of the swing arm 271 that produces of interlock connecting rod 274, pining down plate 292 becomes the mounting position riding on feed screw axle 293.Now, dust discharge control volume 260 is from opening posture OP to closing 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 and is allowed to carry guide rod 222 to move to being less than the position of setting interval D with respect to annular rotating link chain 221 by above-mentioned abutting part 284 and above-mentioned cam surface 283.

In the time pining down plate 292 and ride over like this on feed screw axle 293, feed screw axle 293 is by the ridge and the butt that pins down plate 292 of feed screw axle 293, carry out feeding operation to pining down plate 292, pin down plate 292 take with the position that links of rotation fulcrum 261 as swinging fulcrum, strain is to the state swinging along the direction of rotation fulcrum 261.Along with the carrying out of this Flexible change, pin down plate 292 and leave from feed screw axle 293.So, pin down plate 292 and decline and swing by naturally declining of dust discharge control volume 260, allow 260 switchings to closed posture CL of dust discharge control volume.

Pin down plate 292 in the time leaving from feed screw axle 293, also become and observe, pin down the mounting position that plate 292 and feed screw axle 293 overlap in the direction in the axle center along feed screw axle 293.Thus, switch to while opening posture from closed posture at dust discharge control volume 260, pin down plate 292 and can not be subject to the rising that feed screw axle 293 produces and hinder the top of getting back to feed screw axle 293.

Thus, in the time carrying guide rod 222 to move to respect to annular rotating link chain 221 position that is less than above-mentioned setting interval D, delay device 290 is carrying out feeding operating period by feed screw axle 293 to pining down plate 292, the closing motion of dust discharge control volume 260 is postponed, from carrying guide rod 222 to having moved through by feed screw axle 293 pining down definite setting-up time of feeding time of plate 292 of position that is less than above-mentioned setting interval D, dust discharge control volume 260 is switched to closed posture CL.

; even if carry guide rod 222 from getting back to and be less than the position of setting interval D apart from the position more than above-mentioned setting interval D of annular rotating link chain 221; delay device 290 does not also switch to closed posture CL by dust discharge control volume 260 immediately; in the time carrying guide rod 222 to be positioned at respect to annular rotating link chain 221 for more than above-mentioned setting interval D position; discharge and need the time being supplied to after sorting portion 230 the also handled thing of residual discharge use; through after the setting-up time of setting as this time, dust discharge control volume 260 is switched to closed posture CL.

[other embodiments]

Also can replace the cam-type linkage portion 280 shown in above-mentioned embodiment, and adopt the cam-type linkage portion with following formation to implement, even if cam body 281 arranges in linkage with carrying 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 can realize object of the present invention.

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

[the 4th embodiment]

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

[entirety of crawler travel device forms]

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

As shown in figure 26; this combine has lifting reaping part 303 freely in the front portion of the body 302 of advancing of the crawler-tread 301 with left and right, advance on body 302, there is running portion 304, sheller unit 305, grain returnable 306 with conveying plant etc.

As shown in Figure 27 and Figure 28, crawler-tread 301 be configured to drive sprocket 311, the rear end with front end regulating wheel 312, be configured in a pair of bearing roller 314 and the crawler belt 315 that is located at the rubber system on drive sprocket 311, regulating wheel 312, ground connection runner 313, bearing roller 314 of reeling in multiple (in this example being 8) ground connection runner 313, front and back between them.On the inner peripheral surface of crawler belt 315, give prominence to the axle projection 316 that is provided with pair of right and left with certain spacing along fore-and-aft direction, 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 about snapping in, regulating wheel 312 and bearing roller 314 is installed.

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

Anterior swing mechanism 308 be configured to there is swing arm 319, fulcrum 333, motion arm 335, hydraulic cylinder 338 etc., rear portion swing mechanism 309 be configured to there is 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 in link, can around axle center a, b swing up and down pivotable supporting a pair of swing arm 319,320 before and after being linked with backward.The free end pivotable supporting of swing arm 319 is forwardly 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 swing connecting bar 322 pivotable supportings.

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

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

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

Therefore, form each hydraulic cylinder 338,339 of the front and rear swing mechanism 308,309 of the crawler travel device 301 of left and right by independent operation, can change the terrain clearance of the left and right of organism frame 307, regulate crawler frame 321 with respect to the left and right of the body 302 of advancing (organism frame 307) and the inclination attitude of fore-and-aft direction thereby can change, can carry out left and right rolling adjusting and spacing and regulate.

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

As shown in Figure 29 and Figure 30, on the runner bracket 310 that is positioned at front end, antihunting device 350 is installed.Antihunting device 350 is configured to be had: from crawler frame 321 to side extended bracket 351; The embedded front and rear that extend into this bracket 351 up and down towards bolt 352; With the spring 353 of front and back, the state being embedded on bolt 352 beyond this spring 353 is arranged on the backing plate of bottom of bracket 351 and bolt 352.Extend cartridge 354 downwards from bracket 351, along the embedded spring 353 of inner peripheral surface of this cartridge 354, making thus spring 353 be configured to can be not flexible up and down limpingly.

The spring 353 of front and back is configured to, when runner bracket 310 is due to the concavo-convex of road surface or field when swing, to the spring reaction power effect of the runner bracket 310 horizontal application of forces, for example, in the time that the front portion of runner bracket 310 swings upward, the bolt 352 of front side is boosted upward, and spring 353 is compressed, thereby can make the spring reaction masterpiece of spring 353 be used in the direction of the opposite direction swinging with runner bracket 310.

Like this, by antihunting device 350 being set on runner bracket 310 and crawler frame 321, the vibration that is delivered to the concavo-convex generation due to road surface or field of runner bracket 310 via crawler belt 315 is relaxed and absorbs by antihunting device 350, and be difficult for being delivered to crawler frame 321, the vibration of the body 302 of advancing can be suppressed to be delivered to via crawler frame 321, thereby 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 of crawler frame 321 pivotable supporting, the pivot suspension freely of dallying on this swing crawler frame 324 is provided with multiple (this example is 4) ground connection runner 313 of the latter half that is arranged in crawler belt ground connection scope.Can front and back adjusting slipper bracket 326 be installed at the rear portion that swings crawler frame 324 via the bolt 325 that hoists, the axle supporting freely of dallying on this slipper bracket 326 is provided with regulating wheel 312.Be provided with in the bottom of this swing crawler frame 324 front and back between the axle projection 316 that enters left and right long be divided into two-part de-wheel peventing member 327.

[swinging the detailed construction of limiting mechanism]

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

As shown in Figure 31 and Figure 32, in the inner surface side that swings crawler frame 324, extended swing limiting part 340 is to the inside installed.Swing limiting part 340 and formed by flat steel plate, be fixed in obliquely and swing on crawler frame 324, and the rear surface side linearity of the arm 322a of foreign side's side of its front surface side and swing connecting bar 322 connect to.Swing the thickness of slab of limiting part 340 and be set as following intensity with long grade of leg of the weld part that swings crawler frame 324, even if connect and support and act on larger power, the intensity that also can tolerate fully on swing limiting part 340 with swing connecting bar 322.

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

As shown in Figure 31 and Figure 32, set up and pind down connecting rod 328 in the front portion of the front and back of crawler frame 321 pars intermedia and swing crawler frame 324.This pin down connecting rod 328 via fulcrum 329 can be up and down pivotable supporting be rotationally attached on the anterior side that swings crawler frame 324, be formed on the front and back that pin down on connecting rod 328 towards slotted hole 330 in, run through the outstanding band ladder fulcrum 331 arranging in side inserting to crawler frame 321, pin down connecting rod 328 by packing ring 332 clampings that are arranged on end difference with ladder fulcrum 331 and axle head, can prevent from swinging near crawler frame 324 side-to-side vibrations centered by the P of axle center, swing crawler frame 324 thereby can stably support.In addition, limit the hunting range of swing crawler frame 324 with respect to crawler frame 321 by being formed on the slotted hole 330 pining down on connecting rod 328.

[level control]

As shown in figure 33, in this combine, there is the tilting forward and back sensor 341 and detect the sensor 342 that tilts of the inclination of the left and right directions of the body 302 of advancing of inclination of the fore-and-aft direction that detects the body 302 of advancing, tilt forward and back sensor 341 and the testing result of the sensor 342 that tilts according to this, from control device 345, the magnetic valve 343,344 of hydraulic cylinder 338,339 that need to be flexible for the body 302 of advancing is maintained to level is exported, so that advance, body 302 can be with respect to road surface or field maintenance level, carrying out horizontal control like this.In addition, the L of the hydraulic cylinder 338,339 in Figure 33 and magnetic valve 343,344 and R represent front portion or rear portion swing mechanism 308,309 magnetic valves of use or the magnetic valve of the front portion on right side or rear portion swing mechanism 8,9 use in left side.

[travel condition of crawler travel device]

According to Figure 34 and Figure 35, explanation has the travel condition of the crawler travel device 301 of swing limiting mechanism 300 of the present invention.Figure 34 represents the end view of the travel condition with the crawler travel device 301 that swings limiting mechanism 300, and Figure 35 represents the end view of the travel condition without the crawler travel device 301 that swings limiting mechanism 300.

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

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

In addition, at Figure 34 (a) with (c), owing to not limiting by swinging limiting mechanism 300 swing to front lower place that swings crawler frames 324, so can be with Figure 35 (a) and the state (c) identical, the front and back central authorities of crawler belt ground connection scope become outstanding shape downwards and can follow well the recess on ground.; at Figure 35 (a) with under the state (c); due to the gap of having guaranteed fully between upside and the organism frame 307 of rearward end of crawler belt 315; even if so swing crawler frame 324 to front lower place swing, the upside of crawler belt 315 rearward end also not can with organism frame 307 connect to.Therefore,, at Figure 34 (a) with under the state (c), do not swing the swing of crawler frame 324 to front lower place by swinging limiting mechanism 300 restrictions.

But, under the state shown in Figure 35 (b), when swinging crawler frame 324 while swinging to front lower place, on the position shown in the X of Figure 35 (b) upside of crawler belt 315 rearward end likely with organism frame 307 connect to.In addition, Figure 35 (b) is illustrated in the upside of position crawler belt 315 rearward end shown in X and the state that organism frame 307 is interfered.

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

In addition, the hunting range that swings crawler frame 324 is limited by the above-mentioned slotted hole 330 that pins down the fore-and-aft direction being had on connecting rod 328, but from limit all the time along with the concavo-convex variation of road surface or field face swing crawler frame 324 hunting range to pin down connecting rod 328 different, swing limiting mechanism 300 only under the state shown in Figure 34 (b) restriction by the swing that pins down the swing crawler frame 324 in the hunting range that connecting rod 328 limits, thereby for avoiding the interference of organism frame 307 and crawler belt 315., swing limiting mechanism 300 only the upside of crawler belt 315 rearward end likely with organism frame 307 connect to crawler frame 321 swing the hunting range of crawler frame 324 to restriction under the posture of front lower place.

[other embodiments 1]

In above-mentioned the 4th embodiment, represented to swing the following example forming of limiting mechanism 300: by make to swing limiting part 340 and swing connecting bar 322 connect to, limit and swing the hunting range of crawler frame 324 with respect to the swing to front lower place of crawler frame 321, but as long as bringing into play the mechanism of same purpose, also can adopt the swing limiting mechanism 300 of different structure, for example also can be configured to, on rear portion swing mechanism 309 and swing crawler frame 324, be provided for respectively the parts (not shown) that restriction swings, thereby restriction swings the hunting range of crawler frame 324 with respect to the swing to front lower place of crawler frame 321.

[other embodiments 2]

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

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

[other embodiments 3]

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

As mentioned above, crawler-tread 301 has following formation.; at the regulating wheel 312 of the drive sprocket 311 of front end, rear end and be provided in to reel on the multiple ground connection runners 313 between them and be 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 be 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 that is 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 be provided on the multiple ground connection runners 313 between them and be wound with crawler belt 315, and can link with swinging up and down and be supported with crawler frame 321 via anterior swing mechanism 308 and rear portion swing mechanism 309 on organism frame 307, by above-mentioned anterior swing mechanism 308 and rear portion swing mechanism 309 are operated, can change the posture of above-mentioned crawler frame 321 with respect to above-mentioned organism frame 307, and link is supported with can be 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 supports multiple above-mentioned ground connection runner 313 and above-mentioned regulating wheel 312 that the latter half that is positioned at crawler belt ground connection scope is installed on above-mentioned swing crawler frame 324, in this crawler-tread 301, there is the limiting mechanism 300 of swing, above-mentioned anterior swing mechanism 308 and rear portion swing mechanism 309 are being operated, the front and rear that makes above-mentioned crawler frame 321 respectively with respect to above-mentioned organism frame 307 downwards and top after swinging under the posture of front lower place, the front and rear that this swing limiting mechanism 300 limits above-mentioned swing crawler frame 324 respectively with respect to above-mentioned crawler frame 321 downwards and the hunting range swinging to front lower place of the swing of top.

In addition, above-mentioned swing limiting mechanism 300 is configured to, by make from the extended swing limiting part of above-mentioned swing crawler frame 340 and the swing connecting bar 322 that forms above-mentioned rear portion swing mechanism 309 connect to, limit the above-mentioned above-mentioned hunting range swinging to front lower place under the posture of front lower place.

Finally, in each claim of claims, in order easily to contrast with accompanying drawing and to have write label, but the present invention does not write to limit the formation of embodiment by this.

Claims (9)

1. a sheller unit, has:

Clamping conveying mechanism (7), clamping is received the root side of harvested cereal culm and is carried receipts harvested cereal culm;

Threshing cylinder (9), carries out threshing processing to the fringe head side of the receipts harvested cereal culm of being carried by above-mentioned clamping conveying mechanism (7);

Guided plate (25), along with the rotation of above-mentioned threshing cylinder (9) utilizes this guided plate (25) to above-mentioned threshing cylinder (9) guiding to the grain under the root effluent of receipts harvested cereal culm,

It is characterized in that,

Pressing plate (27) is set, described pressing plate (27) is attached on the guided plate linking part that links above-mentioned guided plate (25) and the top of above-mentioned guided plate (25) is pushed to above-mentioned guided plate linking part together with above-mentioned guided plate (25)

Above-mentioned pressing plate (27) is being attached under the state on above-mentioned guided plate linking part, and pressing plate top and above-mentioned guided plate linking part connect to and are formed as the state on the top that covers above-mentioned guided plate (25) from top.

2. sheller unit as claimed in claim 1, it is characterized in that, processing space for above-mentioned threshing processing forms by being attached at the lower case (2) on organism frame and can opening and closing the upper body (3) being swingingly attached in this lower case

Take body direction of advance as benchmark, top lip of slice (19) is equipped with at the lower left quarter of above-mentioned upper body (3),

Above-mentioned top lip of slice (19) is also used as above-mentioned guided plate linking part.

3. sheller unit as claimed in claim 2, is characterized in that, take above-mentioned body direction of advance as benchmark, is equipped with aulaeum (18) at the upper left quarter of above-mentioned lower case (2),

Between above-mentioned top lip of slice (19) and above-mentioned aulaeum (18), be formed with threshing mouth (20), described threshing mouth (20) will be for supplying with to above-mentioned threshing cylinder (9) from the receipts harvested cereal culm of above-mentioned clamping conveying mechanism (7).

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

Above-mentioned guided plate (25) enters the mode of the inner side of the rotational trajectory (K) of the top of the threshing tooth (26) of above-mentioned threshing cylinder (9) being drawn and extends to threshing cylinder side with the end of its threshing cylinder side,

And on the end of the threshing cylinder side of above-mentioned guided plate (25), be provided with and allow threshing tooth that above-mentioned threshing tooth (26) passes through by portion (31,32).

5. sheller unit as claimed in claim 4, is characterized in that, above-mentioned threshing tooth is the slit at above-mentioned threshing cylinder side opening by portion.

6. sheller unit as claimed in claim 4, is characterized in that, above-mentioned threshing tooth is the recess at above-mentioned threshing cylinder side opening by portion.

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

On the outer surface of above-mentioned top lip of slice (19), be provided with and cover the guided plate installation bolt (28) of use and the cover (30) of nut (29).

8. sheller unit as claimed in claim 7, is characterized in that, the bottom surface (30A) of above-mentioned cover (30) is formed as the closer to left-external side offside in the inclined plane of top.

9. the sheller unit as described in any one in claim 1～8, is characterized in that,

Above-mentioned guided plate (25) is made up of multiple plate bodys.

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