CN104396459B - Sheller unit - Google Patents

Abstract

The present invention provides a kind of disposal ability excellent sheller unit, and the occasion even in large supply threshing processed material will not also cause the load needed for threshing processing to increase, and can implement sufficient threshing to threshing processed material and handle.The sheller unit possesses by with fulcrum（15）For fulcrum is driven in rotation and to being supplied to threshing chamber（14）Harvesting straw implement threshing processing thrashing cylinder（16）, the thrashing cylinder（16）Including multiple bar-like members（47）, supporting member（44、46）And multiple threshing tooths（48）, multiple bar-like members（47）With along fulcrum（15）Posture in thrashing cylinder（16）Circumferentially spaced predetermined distance arrangement ground be equipped with；Supporting member（44、46）It is provided in fulcrum（15）It is front and rear, to support these bar-like members（47）；Multiple threshing tooths（48）Equipment is in each bar-like member（47）On, with from bar-like member（47）Towards thrashing cylinder（16）Foreign side protrude posture arrange with separating predetermined distance in the longitudinal direction.

Description

Sheller unit

The application is 2007 applyings date September 28 days, entitled " sheller unit " of application number 200710161330.9 The divisional application of patent application.

Technical field

The present invention relates to the sheller unit for possessing thrashing cylinder, the thrashing cylinder using fulcrum as fulcrum is driven in rotation and to supply Harvesting straw to threshing chamber carries out threshing processing.

Background technology

As the threshing barrel structure of sheller unit as described above, there is be formed as the outer of cylindric straight drum part Spiral helicine threshing tooth etc. is equipped on week and forms the structure of thrashing cylinder（Referring for example to patent document 1）.

It additionally, there are to be equipped with the periphery for being formed as cylindric cylinder main body and multiple be bent to the de- of V-shaped Grain tooth etc. and form the structure of thrashing cylinder（Referring for example to patent document 2）.

[patent document 1] Japanese Unexamined Patent Publication 11-266666 publications（JP-11-266666A）

[patent document 2] Japanese Unexamined Patent Publication 2006-67910 publications（JP2006-067910A）.

In above-mentioned composition, because the major part of threshing chamber is used as the configuration space of thrashing cylinder, and only remain in de- Small space around grain cylinder is used as the processing space of threshing processing, thus, due to high-speed job etc. and by largely Harvesting straw is supplied to the occasion of threshing chamber as threshing processed material, it be present and handles the danger of space saturation, and when generation should During saturation, because threshing processed material is detained in the process space, therefore easily threshing processed material is caused not carry out at sufficient threshing The unfavorable condition or threshing that reason is just leaked down from undertaking net handle required load increase and cause the biography that thrashing cylinder is driven relatively Unfavorable condition of dynamic system equivalent damage etc..

The content of the invention

It is an object of the invention to provide a kind of sheller unit for possessing the excellent threshing barrel structure of disposal ability, its threshing Barrel structure will not also cause the load increase needed for threshing processing even in the occasion of large supply threshing processed material, can be to de- Grain processed material implements sufficient threshing processing.

In order to reach above-mentioned purpose, in the present invention, possess by being driven in rotation by fulcrum of fulcrum and to being supplied to The harvesting straw of threshing chamber implements the thrashing cylinder of threshing processing, wherein, above-mentioned thrashing cylinder includes multiple bar-like members, support Part and multiple threshing tooths, above-mentioned multiple bar-like members with along the posture of above-mentioned fulcrum in the circumferentially spaced of above-mentioned thrashing cylinder Predetermined distance arrangement ground is equipped with, and above-mentioned supporting member is arranged on the front and rear to support these bar-like members of above-mentioned fulcrum, above-mentioned Multiple threshing tooth equipments are on above-mentioned each bar-like member, with the appearance protruded from above-mentioned bar-like member towards the foreign side of above-mentioned thrashing cylinder Gesture separates predetermined distance arrangement in the longitudinal direction.

Formed according to this feature, thrashing cylinder possesses the space connected with threshing chamber inside it, it is allowed to which threshing processed material is entered Enter to the inner space.Thus, in its spinning movement, while stirring the threshing processed material around it and entering inner space Threshing processed material, while these threshing processed materials are implemented by multiple bar-like members and threshing tooth strike or comb into etc. and carry out Threshing is handled.

That is, being fed into the occasion of threshing chamber as threshing processed material even in largely harvesting straw, also can It is enough effectively to be utilized the inner space of thrashing cylinder as the processing space of threshing processing, thus it is possible to avoid processing empty Between in threshing processed material delay or handle space saturation.As a result, can avoid due to threshing processed material be detained or Processing space saturation, threshing processed material do not carry out unfavorable condition and the threshing that abundant threshing processing is just leaked down on the net from undertaking Load needed for processing increases and causes the generation of unfavorable condition of transmission system damage of relative thrashing cylinder transmission etc..

Moreover, by being equipped with multiple bar-like members with arranging in the circumferentially spaced predetermined distance of thrashing cylinder, can prevent Long stalk is wound up on bar-like member, can avoid because of the winding and caused by threshing processed material delay.Moreover, revolved in thrashing cylinder When rotation is made, not exclusively multiple threshing tooths, and even form multiple bar-like members of the barrel of thrashing cylinder, also all conducts Threshing processed material is implemented to be worked by the threshing processing component for hitting or combing the threshing processing into realization, it is thus possible to improve de- Graininess energy.

On the basis of above-mentioned composition, when on above-mentioned thrashing cylinder equipment by its inner space before and after the partition member that separates When, in the following areas advantageously.

Formed according to this feature, by partition member, the threshing processing by thrashing cylinder toe lateral can be suppressed and simple grain Grain or enter non-threshing straw etc. of thrashing cylinder inner space to threshing processing side in the initial stage of threshing processing Downstream side is flowed, and because the single grain or non-threshing straw etc. are directed to thrashing cylinder with the rotation of thrashing cylinder Around, thus it is possible to prevent due to single grain or non-threshing straw etc. do not stop by the inner space of thrashing cylinder, with The generation lost three times caused by threshing straw from threshing processing direction end of downstream side discharge.

Therefore, even in the occasion of large supply threshing processed material, the increasing of the load needed for threshing processing will not also be caused Greatly, sufficient threshing can be implemented to threshing processed material to handle, is additionally, since the generation that can prevent to lose three times, Neng Gou Avoid improving threshing performance or grain organic efficiency while the damage of thrashing cylinder transmission system etc. caused by load increases, its As a result, it is possible to provide the threshing barrel structure of durability or the excellent sheller unit of disposal ability.

In addition, if equipment produces the windmill of sorting wind and makes the sorting wind from above-mentioned windmill towards above-mentioned partition member If flowing, in the following areas advantageously.

Formed according to this feature, by the threshing processed material that partition member blocks under the sorting wind action from windmill quilt To around partition member（Around thrashing cylinder）Blow open, with the rotation of thrashing cylinder towards threshing around partition member The flowing of direction downstream is handled, thus, it is possible to avoid threshing processed material from being deposited in the nearby position of partition member.

Therefore, it is possible to prevent the accumulation because of threshing processed material from causing disposal ability to reduce.

In a preferred embodiment, the upper side of above-mentioned thrashing cylinder is covered by top plate, is equipped on above-mentioned top plate more It is individual to send dirt valve, it is the plurality of to send dirt valve along with the rotation driving of above-mentioned thrashing cylinder and above-mentioned harvesting straw is handled into direction to threshing Downstream guides.

Formed according to this feature, the harvesting straw of threshing chamber is fed into the rotation of thrashing cylinder, while by by more The a large amount of strikes and comb into the flailing action realized that individual threshing tooth is implemented, while conveyed towards the top of threshing chamber, with The top of threshing chamber is reached, is sent multiple in the presence of dirt valve by towards threshing processing direction downstream guiding.

That is, possessing multiple threshing tooths on thrashing cylinder, it can fully obtain and threshing processed material is beaten by threshing tooth Hit or comb into etc. the appropriate flailing action realized, and the conveying threshing processing of direction downstream can be handled towards threshing Thing.

If also, each threshing tooth is formed as, such as with rotated with thrashing cylinder and by threshing processed material towards threshing Guide portion of direction downstream guiding etc. is handled, then can carry out the threshing towards threshing processing direction downstream more well Processed material conveys, if moreover, if being formed as only carrying out the threshing dedicated shape that enters for the strike of threshing processed material or comb, The flailing action more particularly suitable to threshing processed material can then be obtained.

Therefore, can by making the conveying for sending dirt valve to be substantially carried out handling threshing processed material to threshing direction downstream Threshing processed material will not be damaged towards the transportation performance in threshing processing direction downstream, achievable threshing performance and encourage back by providing The threshing structure of the full feed type combine harvester of the raising for rate of producing effects.

It is above-mentioned to send dirt valve to be formed as, have and step up the length of the left and right sides edge for stating top plate, now, being capable of long enough The length of sending dirt valve of the equipment on top plate is obtained, thereby, it is possible to carry out the threshing processing by sending dirt valve to implement more well Conveying guiding of the thing towards threshing processing direction downstream.Therefore, the threshing performance of multiple threshing tooths and grain time are being realized While the raising for rate of producing effects, raising of the threshing processed material towards the transportation performance in threshing processing direction downstream can be realized.

Above-mentioned top plate is formed as moreover, working as, approximately along the rotation with above-mentioned thrashing cylinder by the end of above-mentioned threshing tooth , can be while making to be delivered at the threshing on threshing chamber top with the rotation of thrashing cylinder when holding the rotational trajectory bending drawn out Reason thing along top plate or send dirt valve, swimmingly handles towards threshing guided below the downstream of direction on one side.Therefore, in reality Now while the raising of the threshing performance of multiple threshing tooths and grain organic efficiency, threshing processed material can be realized towards threshing Handle direction downstream transportation performance raising, additionally it is possible to avoid because the collision with top plate and caused by grain damage Deng.

In a preferred embodiment, above-mentioned thrashing cylinder leading section equip helical blade, the helical blade with The rotation of above-mentioned thrashing cylinder and be grilled into towards rear and convey by towards the leading section supply conveying come harvesting straw, above-mentioned spiral shell Vane piece is dismantledly installed.

Formed according to this feature, in helical blade due to being contacted and the field of noticeable wear with fiercenesses such as harvesting straws for a long time Close, only can replace the helical blade of abrasion.Thus, with not equipped dismantledly in thrashing cylinder leading section by welding etc. The occasion of helical blade is compared, and time and the cost changed needed for helical blade can be significantly cut down, as a result, can make mill The replacing of the helical blade of damage is easily carried out.Also, due to the helical blade of readily replaceable abrasion, it is thus possible to easily avoid When letting alone helical blade abrasion the reduction that is grilled into conveying effect of the caused helical blade to harvesting straw, with the reduction and So that unfavorable condition as the reduction of threshing disposal ability.

Therefore, can by implementing that helical blade removably is arranged on into such simple improvement on thrashing cylinder leading section To carry out simply and inexpensively the appropriate disposal worn for helical blade, as a result, can easily avoid due to spiral The reduction of the threshing disposal ability of blade wear.

On the basis of this composition, conveying assisted guides, conveying auxiliary guiding are set in the lower section of above-mentioned thrashing cylinder Part is configured to cover the leading section of above-mentioned thrashing cylinder from below, so as to which the leading section supply conveying accepted towards above-mentioned thrashing cylinder comes Harvesting straw, and aid in being grilled into conveying to what harvesting straw was carried out by above-mentioned helical blade, it is described to convey assisted guides structure Turn into, it, which is located at least in the part in the direction of rotation downstream of above-mentioned thrashing cylinder, to dismount, now, in conveying assisted guides Due to being contacted and the occasion of noticeable wear with fiercenesses such as harvesting straws for a long time, only the conveying assisted guides of abrasion can be changed Fall.Thus, with such as by welding conveying assisted guides not being equipped into the occasion phase on supporting frame etc. dismantledly Than time and the cost changed needed for conveying assisted guides can be significantly cut down, as a result, the conveying of abrasion can be made auxiliary The replacing of guiding piece is helped easily to carry out.Also, due to the conveying assisted guides of readily replaceable abrasion, it is thus possible to easily keep away Exempt from let alone conveying assisted guides abrasion when it is caused, due to helical blade and conveying assisted guides between formed between Gap becomes big and causes be grilled into conveying effect of the helical blade to harvesting straw to reduce, cause threshing disposal ability with the reduction Unfavorable condition as reduction.

In addition, harvesting straw of conveying etc. is grilled into towards rear by helical blade with the rotation of thrashing cylinder by threshing The influence of cylinder rotation, it is biased against the thrashing cylinder direction of rotation downstream part concentrated in conveying assisted guides.Thus, conveying It is fierce with the contact of harvesting straw etc. positioned at the part in the thrashing cylinder direction of rotation downstream in assisted guides, Easier generation cause is in the abrasion of the contact.

Therefore, if considering this aspect and forming the direction of rotation downstream part of the thrashing cylinder conveyed in assisted guides For the form that can be assembled and disassembled, then because of the thrashing cylinder with fierce contact the such as harvesting straw and in causing conveying assisted guides for a long time Direction of rotation downstream part noticeable wear occasion, only the part of the abrasion can be replaced.Thus, with changing entirely The occasion of conveying assisted guides compares, and can further cut down the cost needed for changing.

Therefore, conveying assisted guides are configured to by it by implementation and are located at least in the direction of rotation downstream of thrashing cylinder Part can assemble and disassemble such simple improvement, can simply and inexpensively carry out the appropriate place for conveying assisted guides abrasion Put, as a result, abrasion, threshing disposal ability the reduction due to conveying assisted guides can be avoided easily.

In a preferred embodiment, undertaking net is equipped with a manner of covering above-mentioned thrashing cylinder from below, with from top The mode for covering above-mentioned thrashing cylinder is equipped with top plate, and seam is dismantledly equipped between above-mentioned undertaking net and above-mentioned top plate Part, the seaming component are formed as with the guide surface for being concatenated the inner surface for accepting net and top plate.

Formed according to this feature, significantly ground in the guide surface of seaming component due to being contacted for a long time with fiercenesses such as harvesting straws The occasion of damage, only the seaming component of abrasion can be replaced.Thus, with that can not be filled on net or top plate is accepted by welding etc. Equip seaming component occasion with tearing open is compared, and can significantly cut down the time needed for the seaming component for changing abrasion and cost, As a result, the replacing of the seaming component of abrasion can be made easily to carry out.Also, due to the seaming component of readily replaceable abrasion, because And can easily avoid let alone seaming component abrasion when it is caused, due to can not utilize seaming component guide surface will accept The inner surface of net and the inner surface of top plate be concatenated and cause harvesting straw etc. can not across thrashing cylinder undertaking net and top plate it is suitable Channel Group is dynamic so as to unfavorable condition as the reduction of threshing disposal ability.

Therefore, such simple improvement between net and top plate is being accepted by implementing dismantledly to equip seaming component, The appropriate disposal for seaming component abrasion can simply and be inexpensively carried out, as a result, can easily avoid due to connecing Stitch component wear, threshing disposal ability reduction.

Formed on other features and the advantageous effects played are made up of this feature, by while referring to the drawings Reading following explanation will become clear.

Brief description of the drawings

Fig. 1 is the overall side view of full feed type combine harvester.

Fig. 2 is the overall top view of full feed type combine harvester.

Fig. 3 is the longitudinal cross-sectional side view of sheller unit.

Fig. 4 is the partial vertical sectional front view of the composition for the leading section for representing sheller unit.

Fig. 5 is the partial vertical sectional front view of the composition for the front and rear pars intermedia for representing sheller unit.

Fig. 6 is the top view of the major part for the composition for representing thrashing cylinder and conveying assisted guides.

Fig. 7 is the cross-sectional plan view of the major part for the composition for representing thrashing cylinder.

Fig. 8 is the sectional view of the major part for the mounting structure for representing helical blade.

Fig. 9 is the vertical profile rearview of the thrashing cylinder for the composition for representing thrashing cylinder.

Figure 10 is the cross-sectional plan view of the major part for another composition for representing thrashing cylinder.

Figure 11 is the vertical profile front view of the major part for the composition for representing seaming component.

Figure 12 is the cross-sectional plan view for representing to send the length of dirt valve and the major part of configuration.

Figure 13 is the top view for representing to convey the major part of the composition of assisted guides.

Figure 14 is the longitudinal cross-sectional side view for representing to convey the major part of the composition of assisted guides.

Figure 15 is the stereogram for representing to accept the major part of the composition of net.

Figure 16 is the stereogram of the major part for the composition for representing primary dcreening operation.

Figure 17 is the vertical profile front view of gearbox.

Figure 18 is the side view in partial cross-section of gearbox.

Figure 19 is the action specification figure of air-breather.

Figure 20 is the exploded perspective view for the schematic configuration for representing air-breather.

Embodiment

The full feed type combine harvester using rice or wheat etc. as harvesting object is shown in Fig. 1（whole culm discharging type combine-harvester）Overall side.Its overall top surface is shown in Fig. 2.Such as these figures Shown such, full feed type combine harvester is equipped with engine 2 in the right front portion of the body framework 1 formed by square tube steel etc. And speed change gear（It is not shown）.In the bottom of body framework 1, equipped with by through transmission such as speed change gears from engine 2 Power-actuated pair of right and left crawler type running device 3.In the front portion of body framework 1, liftable is swingingly connected with harvesting and made For the vertical straw of plant of harvesting object and the harvesting conveying device 4 for rearward conveying it.In the left side of body framework 1, carry There is sheller unit 5, the sheller unit 5 implements threshing processing to the harvesting straw from harvesting conveying device 4, meanwhile, also to logical The processed material progress sorting process crossed obtained by threshing processing.Sack-filling device 6 is equipped with the right side of body framework 1, should Sack-filling device 6 stores the grain from sheller unit 5, and can be by the grain bagging of the storage.Before the right side of body framework 1 Portion is formed with taking Drive Section 7.

The crawler type running device 3 of left and right is so formed, i.e. based on taking, the possessed cross of Drive Section 7 is shuttle-type 8 swinging operation in the lateral direction of neutral reply type control stick, steering（It is not shown）Action, thus, switches and shows The straight-going state and their differential steering states that the crawler type running device 3 of left and right is driven by constant speed.

On the left and right sides end of the front end of harvesting conveying device 4, vertical straw will be planted equipped with being travelled with body Comb is divided into the vertical straw of plant of harvesting object and gathers in the nearside divider 9 of the vertical straw of plant beyond object.Before conveying device 4 is gathered in Above portion, taken off equipped with the fringe point side that the plant that the harvesting object branched away is combed by the nearside divider 9 of left and right is stood to straw towards rear The rotating drum 10 entered.In the bottom of harvesting conveying device 4, equipped with cutting for the strain root side for cutting off the vertical straw of plant for gathering in object Breaking mechanism 11.It will be cut at the rear of shut-off mechanism 11 equipped with auger conveyor 12, the auger conveyor 12 by shut-off mechanism 11 Straw is stood in the plant having no progeny（Gather in straw）Deviation is collected into the specified location of left and right directions, also, from the specified location after Send out side.It is de- equipped with the harvesting straw direction by will be sent out from the specified location on the specified location of auger conveyor 12 Grain device 5 supply conveying conveying mechanism into feeder 13.

Gather in the lift cylinders for the fluid pressure type that conveying device 4 is set up by across body framework 1 and feeder 13（It is not shown）'s Action, lifting and swinging is carried out by fulcrum of the tie point of body framework 1 and feeder 13.The action of lift cylinders, by based on behaviour The swinging operation switching control valve of vertical pole 8 in front-rear direction（It is not shown）Operating state and controlled, the control valve control work Make flowing of the oil phase to lift cylinders.That is, by swinging operation control stick 8 in front-rear direction, harvesting conveying dress can be made 4 liftings are put, the harvesting height regulation etc. of the relative height and position for planting vertical straw of shut-off mechanism 11 can be changed.

As shown in Figures 3 to 5, on the top of sheller unit 5 formed with threshing chamber 14.In threshing chamber 14, it is equipped with There is the thrashing cylinder 16 rotated before and after being set up with the conveying direction along harvesting straw to fulcrum 15 for fulcrum.In thrashing cylinder 16 Lower section equipped with net 17 is accepted, lower side, the front viewing that the undertaking net 17 is formed as covering thrashing cylinder 16 from below are in U The shape of font, the harvesting straw handled with the rotation of thrashing cylinder 16 by threshing is accepted, and make to handle what is obtained by threshing Reason thing leaks down.In sheller unit 5, its threshing processing direction end of downstream side undertaking net 17 rear, formed with for Straw after threshing is handled is discharged to the stalk outlet 18 outside machine.The lower section of net 17 is being accepted, equipped with to being leaked from undertaking net 17 Under processed material implement to sieve the swing sorting mechanism 19 of sorting process.The front lower place of sorting mechanism 19 is being swung, equipped with court To leaking down the processed material come and to sieve processed material supply sorting wind in sorting process and real to these processed materials from accepting net 17 Apply the windmill 20 of pneumatic separating processing.At the rear of windmill 20, formed with to leaking down from the toe lateral for swinging sorting mechanism 19 The recoverer 21 that processed material is reclaimed.At the rear of a recoverer 21, formed with to from swinging sorting mechanism 19 The secondary recovery portion 22 that the processed material that rear portion side is leaked down is reclaimed.Swing sorting mechanism 19 rear, formed with will not from Swing the processed material that sorting mechanism 19 leaks down and is transported to the rearward end for swinging sorting mechanism 19 and be discharged to outlet outside machine 23.In the top of thrashing cylinder 16, can be opened and closed to be equipped with the top plate 24 for the upper side for covering from above thrashing cylinder 16, will be with de- Grain cylinder 16 rotation and by towards the top of thrashing cylinder 16 convey come harvesting straw and threshing processed material towards accept net 17 drawn Lead.

Threshing chamber 14 is formed by zonings such as the undertaking net 17 of covering thrashing cylinder 16 and top plates 24.Under the front end of threshing chamber 14 Square position, formed with using by feeder 13 convey Lai harvesting straw integrally as processed material supply supply mouth 25.

The fulcrum 15 of thrashing cylinder 16 rotatably can be set up across the antetheca 26 and rear wall 27 of sheller unit 5.Also, thrashing cylinder 16 using the power from engine 2 via the grade transmission of windmill 20, is that fulcrum is driven to the right of front viewing with fulcrum 15 Dynamic rotation, by the rotation driving, threshing processing is implemented to the harvesting straw supplied to threshing chamber 14, promotes the simple grain of grain Change, meanwhile, the body rear that the harvesting straw is handled to direction downstream towards threshing conveys.

The spill undertaking net that net 17 is created as clathrate is accepted, catches supply to the harvesting straw of threshing chamber 14, auxiliary The threshing that thrashing cylinder 16 is carried out to harvesting straw is handled.Specifically, undertaking net 17 one side is caught moves with the rotation of thrashing cylinder 16 The harvesting straw for making and being handled by threshing, while making by the single grain obtained by threshing processing or the paddy obstructed with branch Grain or the swing sorting mechanism 19 of the processed material such as stalk crumb downward leaks down as caused by being handled threshing, on the other hand, prevent Threshing straw etc. is leaked down towards sorting mechanism 19 is swung.

Swing sorting mechanism 19 and possess the vertical view viewing for being driven and being swung to front-rear direction by the drive mechanism 28 of cam-type Screen box 29 in the shape of a frame.On the top of screen box 29, from the front of screen box 29, in order equipped with the grain pan of ragging 30th, primary dcreening operation 31, strawwalker 32.In the bottom of screen box 29, from the front of screen box 29, in order equipped with the grain of refining-sorting Disk 33 and grain sieve 34.The top of sorting mechanism 19 is being swung, is being connect by the grain pan 30 or primary dcreening operation 31 or strawwalker 32 on top The sorting process thing to leak down in the state of simple grain straw or stalk crumb etc. mix from undertaking net 17 is stayed in, carries out sieving the thick of sorting Sorting process.Swinging the bottom of sorting mechanism 19, caught by the grain pan 33 or grain sieve 34 of bottom in simple grain straw or The sorting process thing that grain with branch stalk etc. leaks down in the state of mixing from primary dcreening operation 31, sieve the refining-sorting processing of sorting. As a result, using sorting process thing sorting as the single grain as a thing, the band branch as secondary thing stalk grain or The dust such as the impurityes such as stalk crumb, stalk crumb as thing three times.

The power from engine 2 that windmill 20 is transmitted using the transmission mechanism 35 via belt, using its fulcrum 20A as branch Point is driven in rotation, so as to generate sorting wind.The sorting that sorting wind is leaked down by three wind path R1 ~ R3 and direction from undertaking net 17 The supply such as processed material or the sorting process thing that is sorted by swing sorting mechanism 19, thus blows that to separate proportion small from sorting process thing Stalk crumb etc., conveyed towards the outlet 23 in threshing processing direction downstream.

Recoverer 21, will be from swing according to the state that the dust such as straw bits are eliminated by the sorting wind from windmill 20 The single grain that the grain sieve 34 of sorting mechanism 19 leaks down is reclaimed as a thing.In the bottom of a recoverer 21, Left and right Xiang Di is equipped with the conveyor screw 36 driven using the power from engine 2 via the grade transmission of windmill 20. A thing being recovered to by a recoverer 21 direction is connected with and raises square auger body 37 in its right-hand member by conveyor screw 36（Reference Fig. 2）Conveying.

Secondary recovery portion 22 flows down not leaking down from the grain sieve 34 for swinging sorting mechanism 19 from the rear end of grain sieve 34 Band branch stalk grain or the grain of the impurity such as stalk crumb and the band branch stalk to leak down from the strawwalker 32 for swinging sorting mechanism 19 Or the impurity such as stalk crumb is reclaimed as secondary thing.In the bottom in secondary recovery portion 22, left and right Xiang Di equipped with using via The secondary spiral body 38 that the power from engine 2 of the grade transmission of windmill 20 is driven.Secondary spiral body 38 will be by secondary returning The secondary thing direction that receipts portion 22 is recovered to is connected with the secondary foldback mechanism 39 in its right-hand member（Reference picture 2）Conveying.

Raise square auger body 37 to by a conveyor screw 36 convey Lai a thing raise giving, and be supplied to pack fill Put 6 top possessed grain box 40（Reference picture 1 and Fig. 2）.Secondary foldback mechanism 39 possesses to defeated by secondary spiral body 38 The secondary thing sent carries out the reprocessing portion of threshing processing again（It is not shown）, raise and send by two after the reprocessing portion threshing processing Secondary thing and be returned to swing sorting mechanism 19（Reference picture 2 and Fig. 3）.

Outlet 23 is by the threshing straw do not leaked down and flowed down from stalk outlet 18 from undertaking net 17 or by sieving at sorting Reason and pneumatic separating handle and are sorted stalk crumb at rear for being transported to swing sorting mechanism 19 etc. and be discharged into outside machine.

If Fig. 3 is to as shown in Figure 9, thrashing cylinder 16 possess the circular cone shape to form its leading section be grilled into portion 41 and with This is grilled into the threshing processing unit 42 of the rear end connection in portion 41.Two helical blades 43 are equipped with the outer peripheral face in the portion that is grilled into 41, Two helical blades 43 will be supplied by feeder 13 be delivered to the harvesting straw of supply mouth 25 with the rotation of thrashing cylinder 16 court Threshing processing unit 42 rearward is grilled into conveying.

Threshing processing unit 42 is made up of such as lower member etc.：First plate（One of supporting member）44, integrally equipment is propping up for it The front portion of axle 15；Second plate（One of partition member）45, it integratedly equips the pars intermedia before and after fulcrum 15；3rd plate （One of supporting member）46, it integrally equips the rearward end in fulcrum 15；The six roots of sensation thrashing cylinder structure being made up of pipe steel etc. Frame（One of bar-like member）47, they with along before and after fulcrum 15 to posture thrashing cylinder 16 it is circumferentially spaced it is certain between It is supported by every arrangement；And multiple threshing tooths 48, they are with from thrashing cylinder framework 47 towards the foreign side of thrashing cylinder 16 protrusion Posture is equipped on each thrashing cylinder framework 47 with separating predetermined distance arrangement in the longitudinal direction.

That is, on thrashing cylinder 16, according to the circumference of threshing processing unit 42 and front and back it is spaced up it is set between Every the mode of arrangement, multiple threshing tooths 48 equipped with foreign side's protrusion towards thrashing cylinder 16 are arranged.In addition, as thrashing cylinder 16, the internal space S of threshing processing unit 42 connects with threshing chamber 14, allows processed material to enter its internal space S.As a result, In 16 spinning movement of thrashing cylinder, while stirring the processed material around it and entering the processed material of internal space S, while to this The threshing processing that a little processed materials are implemented to enter etc. by the strike or comb of thrashing cylinder framework 47 and threshing tooth 48 to carry out.

The internal space S for being additionally, since threshing processing unit 42 connects with threshing chamber 14, even in will largely gather in straw The occasion of threshing chamber 14 is supplied to as processed material, the internal space S of threshing processing unit 42 can also be handled as threshing and used Processing space effectively utilized.Thereby, it is possible to avoid handling the delay of the processed material in space and handle the saturation in space. As a result, can avoid due to processed material being detained or handle space saturation, processed material do not carry out abundant threshing processing just from Concave shaped portion 3 leak down or threshing processing needed for load increase and cause transmission system that relative thrashing cylinder 16 transmits damaged etc. no The generation of good situation.

Also, in the spinning movement of thrashing cylinder 16, not only multiple threshing tooths 48, even being formed at the threshing of thrashing cylinder 16 The threshing processing component that the six roots of sensation thrashing cylinder framework 47 in reason portion 42 also serves as acting on processed material works, thus, it is possible to realize The raising of threshing performance and threshing efficiency.

A large amount of grain are additionally, since by the threshing processing of the toe lateral of thrashing cylinder 16 and are leaked from undertaking net 17 after simple grain Under so that the processing object amount of the front and rear pars intermedia of thrashing cylinder 16 reduces, in the front and rear pars intermedia, by the inner space of thrashing cylinder 16 The second plate 45 separated before and after S prevents the processed material in the internal space S of thrashing cylinder 16 from handling direction downstream effluent towards threshing It is dynamic, in company with the rotation of thrashing cylinder 16 by around processed material guide threshing cylinder 16, so as to promote by the grade of threshing tooth 48 to place Manage the strike of thing or threshing that comb enters etc. and carried out and single grain are from accepting leaking down for net 17.Thereby, it is possible to prevent three The generation of secondary loss, this loses three times leads to not stopping due to contained single grain or non-threshing straw etc. in processed material Cross the internal space S of thrashing cylinder 16, in company with threshing straw together by from the row's stalk for being formed at threshing processing direction end of downstream side Mouth 18 is discharged.

And then in the spinning movement of thrashing cylinder 16, together with the harvesting standing grain that conveying is grilled into the presence of the portion that is grilled into 41 Stalk attracts the extraneous gas of coming with the rotation of helical blade 43 from supply mouth 25 together, around thrashing cylinder 16 or at threshing Swimmingly flowed in the internal space S in reason portion 42.Thereby, it is possible to prevent caused by threshing is handled stalk crumb etc. from supply mouth 25 to Feeder 13 flows out, and can more rapidly carry out conveying of the processed material towards threshing processing direction downstream.

In addition, from supply mouth 25 attract extraneous gas by the inside for the feeder 13 being connected with supply mouth 25, moreover, The feeder 13 will be formed in the harvesting recoverer of the harvesting conveying device 4 equipped with shut-off mechanism 11 and the grade of auger conveyor 12 On recovery straw output delivery outlet（It is not shown）Connected with supply mouth 25, thus, in 16 spinning movement of thrashing cylinder, Helical blade 43 is rotated under caused sucking action, is handled or is recycled and caused stalk by gathering in recoverer is gathered in The dust such as bits also in company with extraneous gas together, from inner space and supply mouth of the delivery outlet via feeder 13 of harvesting recoverer 25 are flowed into around thrashing cylinder 16 or the internal space S of threshing processing unit 42.As a result, it can suppress to gather in stalk in recoverer Bits etc. attachment accumulation or fly upward, can suppress because the attachment accumulate caused by gather in straw conveying it is bad and because this fly Reduction of operating environment and visibility etc. caused by raising.

Each plate 44 ~ 46 is in the circle centered on fulcrum 15, in its outer circumferential side away from spiral shell on 15 equidistant position of fulcrum Tether and be connected to thrashing cylinder framework 47.That is, in the outer circumferential side of each plate 44 ~ 46, according to separating certain intervals in its circumferential direction The state of arrangement is equipped with six roots of sensation thrashing cylinder framework 47, the cylinder diameter increase of thrashing cylinder 16.Thereby, it is possible to prevent harvesting straw relative The winding of thrashing cylinder 16.

Each thrashing cylinder framework 47 is bolted on each plate 44 ~ 46, can be become more towards and as its fore-and-aft direction with taking off The consistent usual posture of the fore-and-aft direction of grain cylinder 16 and its fore-and-aft direction upset posture opposite with the fore-and-aft direction of thrashing cylinder 16, And adjacent thrashing cylinder 47 is mutual front and rear towards opposite.

On each thrashing cylinder framework 47, be equipped with multiple mounting hole 47A, the 47B that can install threshing tooth 48, they be in The state arranged on its fore-and-aft direction with a determining deviation P, and in the mounting hole 47A from the front end of thrashing cylinder framework 47 to forefront The distance L1 at center and the distance L2 from the rear end of thrashing cylinder framework 47 mounting hole 47A square to the end center have between half Away from（=1/2P）Difference state.

Also, each thrashing cylinder framework 47 is supported on each plate with adjacent mutual front and rear connected towards opposite state of framework On 44 ~ 46.Thus, can be with adjacent thrashing cylinder while the framework of identical composition is used as six thrashing cylinder frameworks 47 The threshing tooth 48 of framework 47 positions what is equipped on these thrashing cylinder frameworks 47 in the state of fore-and-aft direction half of spacing of dislocation Threshing tooth 48.As a result, the interval without reducing adjacent threshing tooth 48, just can reduce strike of the threshing tooth 48 to processed material Interval.

That is, by the way that each thrashing cylinder framework 47 is set into identical composition to realize cost cutting, moreover, effectively Prevent the interval of adjacent threshing tooth 48 smaller more incidental, due to the relative threshing tooth 48 of straw in processed material The processed material of winding blocks, meanwhile, it is capable to improve threshing performance by increasing threshing tooth 48 to the cycle of processed material.

Moreover, by by each thrashing cylinder framework 47 be equipped to can will towards be changed as usual posture and upset posture, Positioned at because more than processing object amount and the abrasion of the threshing tooth 48 of threshing more easy to wear processing direction upstream side in long-term use of mistake More become significant occasion in journey, by changing the direction of each thrashing cylinder framework 47, at one stroke can be had each thrashing cylinder framework 47 The position of standby multiple threshing tooths 48 changes over the threshing tooth 48 of threshing processing direction upstream side more easy to wear and not easy to wear Threshing processing direction downstream threshing tooth 48 exchange state.Thereby, it is possible to will wear few threshing to handle direction downstream The threshing tooth 48 of side as processing object amount more than threshing processing direction upstream side threshing tooth 48 effectively utilized.

Four positioned at the rear and front end portion of each thrashing cylinder framework 47 in multiple mounting hole 47A, 47B（Front and rear each two） Mounting hole 47A is formed as the diameter smaller than the mounting hole 47B positioned at pars intermedia.

The threshing tooth 48A that the mounting hole 47A using minor diameter in each threshing tooth 48 is installed is inserted through mounting hole by possessing 47A minor diameter 48a pole steel with the level are formed, and center and the thrashing cylinder by fulcrum 15 are centrally located at it Mode on the line at the center of framework 47, dismantledly nut be fixed on thrashing cylinder framework 47.

It is made up of using the mounting hole 47B of the pars intermedia threshing tooth 48B installed wheel chair access pole steel, with its centre bit In by way of on the line at the center of fulcrum 15 and the center of thrashing cylinder framework 47, not dismantledly welding in thrashing cylinder framework On 47.

That is, each threshing tooth 48A positioned at the rear and front end portion of threshing processing unit 42 can be assembled and disassembled, so, at this Even if a little threshing tooth 48A have passed through the occasion of direction change noticeable wear still under long-term use of thrashing cylinder framework 47, energy Enough it is simply exchanged with new threshing tooth 48A.

In addition, the threshing more than threshing straw amount handles direction downstream, as shown in Figure 10, if with thinning positioned at de- If the threshing tooth 48A of the grain rearward end of cylinder 16 state is equipped with, then the threshing tooth 48A of thrashing cylinder rearward end interval becomes Greatly, the delay of the threshing straw of the hook of the threshing tooth 48A due to relative thrashing cylinder rearward end can effectively be suppressed.It is tied Fruit, discharge of the threshing straw from stalk outlet 18 can be promoted.

Such as Fig. 3 ~ 5, Figure 11（a）、（b）And as shown in Figure 12, the one of top plate 24 is equipped with approximately along threshing tooth end End rotational trajectory K bending bending section 24A, positioned at bending section 24A rear and front end semicircle shape longitudinal wall part 24B, with And linear side edge part 24C positioned at bending section 24A or so etc..Top plate 24 is configured to, with the side edge part 24C institutes on the left of it The multiple hinge 24D possessed are fulcrum, can cover from above the closed position of the upper side of thrashing cylinder 16 and unlimited threshing Swinging operation is opened and closed between the open position of the upper side of cylinder 16.On the side edge part 24C on right side, it is provided with to close shape State fixes multiple bolt 24E of top plate 24.

Bending section 24A is bent to form, so as to by its inner surface undertaking net 17 downward swimmingly to threshing Cylinder 16 rotation and towards the top of thrashing cylinder 16 conveying come processed material guide.On bending section 24A inner surface, according to Separate in the longitudinal direction predetermined distance arrangement state dismantledly fixed equipment it is multiple send dirt valve 49, this send the companion of dirt valve 49 The processed material that the top of threshing chamber 14 will be transported to the spinning movement of thrashing cylinder 16 handles direction downstream towards threshing Guiding.It is multiple send forefront in dirt valve 49 send dirt valve 49A to be formed as the side edge part 24C from the longitudinal wall part 24B of front side to left side Arc-shaped, others send dirt valve 49B to be formed as the arc-shaped across the side edge part 24C of left and right.

That is, by being equipped with bending section 24A on top plate 24, can be while making the rotation with thrashing cylinder 16 by multiple Threshing tooth 48 etc. taken off the top for being delivered to threshing chamber 14 processed material carry in bending section 24A inner surface or send dirt valve 49, While swimmingly guided towards the undertaking net 17 below threshing processing direction downstream.In addition, by will respectively send dirt valve 49 Be formed as reaching the arc-shaped of the side edge part 24C in left side or the side edge part 24C of left and right long size, can effectively improve and respectively send Dirt valve 49A is transported to the guiding function of the processed material on the top of threshing chamber 14 to being rotated with thrashing cylinder 16.Thus, can not only The shape that each threshing tooth 48 is formed as possessing the effect for conveying processed material, and can be formed as being appropriate for place The threshing dedicated shape that the strike of reason thing or comb enter, meanwhile, it can convey and guide towards threshing processing direction downstream well Processed material, as a result, the raising of the threshing performance and transportation performance to processed material can be realized.

On the side edge part 24C of left and right, dismantledly bolt connection has the seaming component 50 of steel plate, the seaming component 50 It is bent to the inner surface with series winding bending section 24A and accepts the guide surface 50a of the inner surface of net 17.So, due to position In accepting the seam crossing between net 17 and top plate 24 so as to which the seaming component 50 of the contact fierceness with processed material is dismantledly formed, So the seaming component 50 because of the contact with processed material the occasion of noticeable wear, simply can only change seaming component 50.That is, will not cause such as by the seaming component 50 dismantledly occasion of the welding on top plate 24 like that will The unfavorable of trouble and economic aspect is replaced as whole top plate 24 together with the seaming component 50 of abrasion, can be suitably Carry out the disposal of the abrasion for seaming component 50.

In addition, between the end of each threshing tooth 48 and the lower edge for respectively giving dirt valve 49, in order that sending dirt valve 49 to processed material Guiding it is good and be set with small gap.Moreover, between the inner surface of the end of each threshing tooth 48 and undertaking net 17, in order to Promote single grain to leak down from net 17 is accepted, be set with than the end for being set in each threshing tooth 48 and the lower edge for respectively sending dirt valve 49 Between the big gap in gap.

Such as Fig. 3, Fig. 4, Fig. 6 ~ 8 and as shown in Figure 10, in thrashing cylinder 16, it is grilled at it on the outer peripheral face in portion 41, Spirally welding has two support plate 41A.Also, on these support plates 41A back side, dismantledly bolt connection has Corresponding helical blade 43, present outer rim of their outer edge side than corresponding support plate 41A will also outward side protrude shape State.

That is, in the thrashing cylinder 16, the harvesting straw for being delivered to supply mouth 25 is supplied by feeder 13 with de- The rotation of grain cylinder and be grilled into conveying towards rear, so as to which two helical blades 43 are contacted with gathering in straw fierceness and are easily occurred Due to the abrasion of the contact, two helical blades 43 dismantledly equip being grilled into portion 41 in thrashing cylinder 16, thus, Cause the occasion of each noticeable wear of helical blade 43 by long-term use, simply only helical blade 43 can be carried out more Change.As a result, will not cause such as by the helical blade 43 dismantledly occasion of the welding in the portion that is grilled into 41 like that will The unfavorable of trouble or economic aspect is replaced as the portion of being grilled into 41 together with the helical blade 43 of abrasion, can suitably be entered The disposal of abrasion of the hand-manipulating of needle to helical blade 43.

In addition, each support plate 41A utilizes multiple reinforcements across the welding of their preceding surface with the outer peripheral face for being grilled into portion 41 Rib 41B is strengthened.

Such as Fig. 3, Fig. 4, Fig. 6, Figure 13 and as shown in Figure 14, in sheller unit 5, in its antetheca 26 and net 17 is accepted Between equipped with conveying assisted guides 51, the conveying assisted guides 51 accept by feeder 13 supply is delivered to supply mouth 25 Harvesting straw, the harvesting straw for aiding in being carried out by two helical blades 43 is grilled into conveying.Convey assisted guides 51 by from Lower section covering is grilled into the lower side of portion 41, bolt connection into pair of right and left guide member when facing viewing in substantially U-shaped 51A, 51B are formed.Guide member 51A, 51B of left and right are made up of following manner, i.e. front and rear being dismantledly bolted to Stainless steel on the antetheca 26 and the pair of right and left supporting frame 52 on the top of sheller unit 5 for being provided to sheller unit 5 The first plate 51a on, welding is formed from the antetheca 26 of sheller unit 5 to the second plate of the stainless steel for the guide surface for accepting net 17 51b。

That is, in the sheller unit 5, because being grilled into for the harvesting straw to being carried out by two helical blades 43 is defeated Feeding row auxiliary, conveying assisted guides 51 are contacted with harvesting straw fierceness and then easily occurred because of abrasion caused by the contact, Assisted guides 51 will be conveyed and be equipped to the form that can assemble and disassemble, also, the left and right two of being capable of left and right segmentation will be consisted of and divided Cut structure, i.e. the guide member 51A positioned at the left side of the direction of rotation upstream side of thrashing cylinder 16 and the rotation positioned at thrashing cylinder 16 The guide member 51B on the right side in direction downstream, thus, causing the overall significantly mill of conveying assisted guides 51 because of long-term use The occasion of damage, it simply can only change conveying assisted guides 53.In addition, causing conveying assisted guides because of long-term use The occasion of left and right any one guide member 51A, 51B noticeable wear in 51, can will only wear significant guide member 51A, 51B are replaced.As a result, will not cause such as will conveying assisted guides 51 dismantledly welding accept net 17 To be replaced like that together with conveying assisted guides 51 with the occasion in the grade of supporting frame 52 of left and right and accept net 17 or left and right branch Hold framework 52 or cede territory even to convey assisted guides 51 the occasion of composition conveying assisted guides 51 as inseparable Any side noticeable wear in left and right when also to change trouble or economic aspect as whole conveying assisted guides 51 not Profit, it can suitably carry out the disposal of the abrasion for conveying assisted guides 51.

It is the strong high-strength stainless steel part of corrosion resistance to be additionally, since conveying assisted guides 51, so can drop It is low that frequency is changed caused by abrasion.

Such as Fig. 3, Fig. 5, Fig. 6 and as shown in Figure 15, accept net 17 and accept wet ends by four that are formed as same shape Part 53 is formed, and dismantledly bolt connection is in the supporting frame 52 of left and right.In each undertaking net means 53, equipped with skeleton construction Rectangular base frame 53A.It is front and rear according to the state of the circumferentially spaced certain intervals in thrashing cylinder 16 in base frame 53A inframe The multiple taeniae 53B being made up of banding steel plate are equipped with to ground arrangement.Moreover, according to before as 16 direction of principal axis of thrashing cylinder The state of the spaced up certain intervals in rear, left and right are equipped with to ground arrangement and are made up of the banding steel plate for being bent to arc-shaped Multiple first horizontal stripe 53C.And then between the first adjacent horizontal stripe 53C, according to separating certain intervals in the longitudinal direction State, left and right are equipped with the multiple second horizontal stripe 53D being made up of the piano wire rod for being bent to arc-shaped to ground arrangement.And And set each bar 53B ~ 53D configuration space so that the mesh for being formed at base frame 53A inframe is presented along thrashing cylinder 16 circumferentially Direction on the length rectangle grown crosswise longer than the length on direction along the longitudinal direction.

That is, it is contemplated that in the threshing processing that thrashing cylinder 16 is driven and rotated, by for harvesting straw This case that single grain of threshing processing gained etc. flows with the rotation of thrashing cylinder 16 and on its direction of rotation, it will accept It is in the rectangle grown crosswise longer on the direction of rotation of thrashing cylinder 16 that net 17, which is configured to its mesh,.Thus, with the structure of net 17 will be accepted The threshing that thrashing cylinder 16 is presented on as its mesh handles direction（Fore-and-aft direction）On the occasion of rectangle of longer lengthwise compare, Single grain etc. is easier to leak down from the toe lateral for accepting net 17.As a result, can effectively it suppress due to single grain From accept net 17 toe lateral leak down be suppressed caused by peel grain generation.Moreover, by by each undertaking net means 53 are formed as identical shape, and the productivity or assembleability that can make undertaking net 17 improve.

Such as Fig. 3 and as shown in Figure 16, the primary dcreening operation 31 of ragging is made up of single sorting plate 54, the sorting plate 54 It is bolted to the inclination attitude risen backward for more leaning on its sorting direction downstream to be located top on screen box 29.

In the toe lateral of sorting plate 54（For relatively whole sorting plate 54, front side about 1/3 region）, overlook viewing It is rectangular it is multiple leak down hole 54A arrangement forms be located at interlocking between the hole 54A that leaks down in forefront for the hole 54A that leaks down of rank rear Shape.In the rear portion side of sorting plate 54（For relatively whole sorting plate 54, rear side about 2/3 region）, there is sorting piece 54a, 54b vertical view watch it is rectangular it is multiple leak down before hole 54B, 54C arrangement form is located at for leak down hole 54B, 54C of rank rear Leaking down for row is staggered between hole 54B, 54C.

The sorting piece 54a of the left and right center side positioned at sorting plate 54 in each sorting piece 54a, 54b, is stamped and is formed as getting over Sort that direction downstream width is narrower and squamous more by the top by it.And positioned at the sorting piece of the left and right ends of sorting plate 54 54b, it is stamped and is formed as the size rectangle shorter than the sorting piece 54a of left and right center side, more sort direction downstream by it and more lean on Top.

, and for example will be by banding steel plate that is, the primary dcreening operation 31 due to being formed ragging with single sorting plate 54 The multiple sieve lips formed（チャフシープ）Arrangement is equipped to separate the form of certain intervals in the longitudinal direction and form just Occasion of sieve 31 etc. is compared, and can realize the simplification of composition and the reduction of cost.

Also, formed and do not had by the toe lateral of the primary dcreening operation 31 in the high sorting process thing of supply single grain containing ratio Back-up chip select 54a, 54b the hole 54A that leaks down, the list to leak down from the toe lateral of primary dcreening operation 31 grain pan 33 downwards or grain sieve 34 It is granulated grain and becomes more.As a result, the simple grain of a recoverer 21 positioned at grain pan 33 or the lower section of grain sieve 34 can be improved The rate of recovery of grain.

Moreover, by the way that in the rear portion side of primary dcreening operation 31, all around arrangement form possesses sorting piece 54a, 54b in a staggered pattern Leak down hole 54B, 54C, in sorting process is sieved, the sorting process thing on primary dcreening operation 31 will not bias in the lateral direction but Uniformly distributed.Thereby, it is possible to promote single grain leaking down from respectively leak down hole 54B, 54C.

And then by equipping primary dcreening operation 31 with elevated inclination attitude backward, the occasion with equipping primary dcreening operation 31 with flat-hand position Compare, in sorting process is sieved, primary dcreening operation 31 releases sorting process thing towards the top that sorting process direction upstream is surveyed Power becomes big.Thus, when sorting process is sieved, the conveying in sorting process thing towards sorting direction downstream is inhibited, together When, the up and down motion of sorting process thing becomes fierce, the difference in specific gravity sorting of sorting process thing can be more effectively carried out, so as to promote Heavy grain leaking down from respectively leak down hole 54B, 54C is entered, moreover, can effectively suppress single grain from outlet 23 are discharged to the generation lost three times outside machine, as a result, the raising of grain organic efficiency can be realized.

In addition, by the way that the sorting piece 54b of the left and right ends of primary dcreening operation 31 is formed as into sorting piece of the size than left and right center side 54a is short, and can promoting grain etc., easily the hole 54C that leaks down in the left and right ends portion of accumulation sorting process thing leaks down from primary dcreening operation 31. As a result, it can avoid due to accumulation, the efficiency of separation reduction of the sorting process thing in the left and right ends portion of primary dcreening operation 31.

In addition, the leaking down for sorting piece 54a, 54b that do not possess for being formed at primary dcreening operation 31 and possesses sorting piece 54a, 54b at hole 54A Leak down hole 54B, 54C ratio, various changes can be carried out according to species of the grain sorted etc..

In addition, it can be also located in the toe lateral of sorting plate 54 with the hole 54C that leaks down of rank rear between the hole 54C that leaks down in forefront Staggered arrangement form it is multiple leak down hole 54C, the hole 54C that leaks down be formed as overlook viewing when it is rectangular, have short size square Shape sorting piece 54b.

It is set to, the sorting wind by epimere wind path R1 in the sorting wind from windmill 20, passes through as shown in Figure 3 Form wind path R4 in screen box 29 and the second plate 45 towards thrashing cylinder 16 flows.Thereby, it is possible to towards around thrashing cylinder 16 Wind model is prevented the processed material of the flowing to threshing processing direction downstream by the second plate 45.As a result, it can avoid locating Reason thing brings obstacle in the accumulation of the nearby position of the second plate 45 to threshing processing.

Such as Fig. 3 and as shown in Figure 6, the threshing tooth 48A in thrashing cylinder 16 positioned at its rear end is positioned at undertaking net 17 rear end Rear and face stalk outlet 18.That is, in the rear end of thrashing cylinder 16, due in the absence of accepting net 17, so as The state of larger space is formd around it.Thus, should even if threshing straw is wrapped on the threshing tooth 48A of threshing tube rear end Threshing straw can also deviate under with centrifugal action caused by the rotation of thrashing cylinder 16 from threshing tooth 48A end. As a result, it can effectively suppress the threshing caused by threshing straw hooks in the rear end of thrashing cylinder 16 with respect to threshing tooth 48A The delay of straw, discharge of the threshing straw from stalk outlet 18 can be promoted.

Below, reference picture 17 to Figure 20 come the ventilation that illustrates the dividing box of gearbox and be provided thereon（breather）Dress Put.

[being monolithically fabricated for dividing box]

Figure 17 show as the dividing box for being applicable air-breather of the invention it is one, in full feed type combining The gearbox 101 used in machine.

Above-mentioned gearbox 101 is made up of the combination of the dividing box unit bodies 102,102 of pair of right and left, the cut-off rule in figure The ground of seal 103 is clamped on the involutory surface 120 of segmentaion position shown in y to be bolted together.

Side connects and supported the hydrostatic stepless speed change device being made up of other case to the gearbox 101 at an upper portion thereof （HST）105, lower side is supported by axletree 106.

Hydrostatic stepless speed change device 105, a dividing box unit in dividing box unit bodies 102,102 to the left and right In the e axle supporting portion 121 that the top of body 102 is extended, insert and the input shaft 150 of pump drive shaft one, so as to by gearbox 101 are supported on the upper end of gearbox 101.The relative input belt wheel 151 being located on above-mentioned input shaft 150, with V belt translation side Formula is from engine（Figure is outer）Transmit the power for the driving system opened with the power branch of operating system.

The output shaft 152 integral with motor drive shaft of hydrostatic stepless speed change device 105 is inserted in the upper of gearbox 101 Portion, the power crossed with respect to the gear input in gearbox 101 by the speed change of hydrostatic stepless speed change device 105.From hydrostatic Pressure type stepless speed change device 105 transmits the power come by the interior secondary gear 113 as gear equipped of gearbox 101 With two shelves gear speed changes of height, afterwards, the axletree 106 of left and right is transferred to via the branch of sidepiece clutch 114 of left and right, to the left and right Crawler travel device output.

Summary situation such as Figure 17 for the gear equipped in gearbox 101 and as shown in Figure 18.

That is, crossbearer is supported with first axle 161, jackshaft 162, the second axle 163 and pair of right and left in gearbox 101 Above-mentioned axletree 106, become across first axle 161 and the ground of jackshaft 162 equipped with two grades of gear shift action progress height can be passed through The secondary gear 113 of speed.

On the left and right central portion of jackshaft 162, loosen it is chimeric is supported with central gear CG, central gear CG pass through by Above-mentioned small diameter gear G3 major diameter change-speed gearing G5 can be engaged in and the small of above-mentioned gear wheel in large diameter G4 can be engaged in Diameter change-speed gearing G6 integrations form.

Select small diameter gear G3 and major diameter change-speed gearing G5 by the way that right is mobile into figure by change gear SG Engagement, and is presented " low speed ", by the way that by change gear SG, into figure, left movement makes gear wheel in large diameter G4 and minor diameter speed change Gear G6 selection engagements, and " high speed " is presented, by the way that shelves gear SG is moved into the centre position do not engaged with central gear CG, And " neutrality " is presented.

On an e axle supporting position of the first axle 161 equipped with change gear SG, equipped with parking brake PB.Should Parking brake PB prevents change gear SG rotation and fixes transmission downstream.

In the left and right of jackshaft 162, chimeric be supported with can be slidably loosened on axis direction and form sidepiece clutch 114 Clutch gear G7, meanwhile, chimeric a pair engage with each clutch gear G7 that are supported with are loosened on the second axle 163 and are exported Gear G8.

By making clutch gear G7 slid inwards, engaged with the internal-gear G9 formed at above-mentioned central gear CG centers And turn into " clutch engagement " state, slid in and out by making clutch gear G7, then turn into and depart from from above-mentioned internal-gear G9 " clutch disconnection " state.All the time by the outer spring 168 on jackshaft 162 to each clutch gear G7 courts Slide force in " clutch engagement " direction.Clutch gear G7 is configured to the form of big width, in " clutch engagement " and Any one state of " clutch disconnection " all engages with output gear G8 all the time.

Each output gear G8 middle small diameter gear G10 integrally connecteds for being supported on the second axle 163 chimeric with loosening, and And each middle small diameter gear G10 respectively with the reduction gearing G11 for the major diameter for being fixedly installed in each medial end of axletree 106 Engagement, the dynamic retarding taken out from each output gear G8 are transferred to the axletree 106 of left and right.

Near the left and right end portions of jackshaft 162, the sidepiece brake SB for acting on above-mentioned clutch gear G7 is provided with. The sidepiece brake SB is made up of more plate friction brakes, and more plate friction brakes are by making and the peripheral snap of shaft hub 169 Friction plate 175 and replace coincidence on axis direction with the friction plate 177 of the inner circumferential of fixing bearing case 176 engaging and form, pass through Clutch gear G7 is set to exceed " clutch disconnection " position and slide further out, the friction plate that the crimping of operation panel 171 overlaps 175th, 177 and to clutch gear G7 implement friction catch.

[composition of air-breather]

Load onto the upper portion for the gearbox 101 for stating gear inside, as shown in Figure 19 and Figure 20 explanation figure that Sample, it is equipped with the air-breather 104 of the present invention.

The outer wall 122 of upper side provided with each dividing box unit bodies 102 in left and right and next door 123, the next door 123 are used for profit With transmission parts of the outer wall 122 with configuration in its vicinity（That is, above-mentioned output shaft 152 and first axle 161, also have around these axles Gear class of arranging etc.）Between caused idle space and together constitute with expansion chambers 140 with above-mentioned outer wall 122.

Above-mentioned expansion chambers 140 located at each dividing box unit bodies 102 are opened wide in the side of involutory surface 120 of gearbox 101, at it Its position is surrounded by above-mentioned next door 123, to form oily storage space 110, the i.e. confession by zoning into relative to gearbox 101 The cell with the built-in space of the state being immersed in lubricating oil in sealed shape such as above-mentioned various gears.

The above-mentioned expansion chambers 140 being located in each dividing box unit bodies 102 of left and right are by being located at the involutory surface of gearbox 101 Seal 103 or so on 120 separates, in the bottom side for the first expansion chambers 140a for being located therein side, in face of involutory surface The small connected entrance 141 of ventilation is formed on 120 part by notch.Located at across the opposite side of above-mentioned seal 103 In another second expansion chambers 140b of dividing box unit bodies 102, horizontal stroke is provided with as the blow vent 142 for allowing to connect with extraneous gas To discharge cylinder.

Also, on the seal 103 between above-mentioned two expansion chambers 140a, 140b, in the outer wall of gearbox 101 120 have been formed about intercommunicating pore 130, and the intercommunicating pore 130 allows from the first expansion chambers connected with above-mentioned oily storage space 110 140a ventilates to the second expansion chambers 140b sides for possessing above-mentioned blow vent 142.

That is, air-breather 104 of the invention utilizes the above-mentioned expansion being separately positioned on around in each dividing box unit bodies 102 Room 140a, 140b and the seal 103 that is positioned between two expansion chambers 140a, 140b and form.

The air-breather 104 so formed is formed as shown in arrow in Figure 19 to carry out the discharge of air.

That is, cause the side of oily storage space 110 of lower section in the rising due to oil temperature or the inclination of body etc. During the pressure increase of gas, gas is press-fit into the first expansion chambers 140a above it by small connected entrance 141.

Now, in the first expansion chambers 140a up, depressurized with the space bigger than the small capacity of connected entrance 141, from And oil to a certain degree can be removed from inflow gas and it is back to oily storage space from above-mentioned small connected entrance 141 110。

Also, when above-mentioned first expansion chambers 140a internal pressure increases, gas flows via the intercommunicating pore 130 of seal 103 Enter the second expansion chambers 140b to opposite side, then depressurized by big space, after further reducing oil, from above-mentioned ventilation Mouth 142 flows out to outside.

Though do not formed on above-mentioned second expansion chambers 140b for make inside it because of gas-liquid separation and caused by oil return The path of oily storage space 110 is returned to, but because most oil had previously been removed in the first expansion chambers 140a sides, so, The possibility that big gauging is stored in the second expansion chambers 140b sides is very small.

The occasion of big gauging is being stored with, if above-mentioned blow vent 142 is opened and carries out attraction discharge from outside, or Case decomposition is discharged while carrying out the entirety of gearbox 101 and safeguarding.

On the discharge cylinder for forming above-mentioned blow vent 142, it is connected with protrusion upward and bends to the logical of semicircle shape Tracheae 143.Why connect the breather pipe 143 of so prominent bending, be in order to prevented in the cleaning of body water externally to The side of gearbox 101 invades.

As described above, above-mentioned air-breather 104 is provided in by engaging multiple dividing box unit bodies by involutory surface 120 102nd, 102 each other and on the gearbox 101 of the partition type of formation, each dividing box unit bodies 102,102 in the both sides of involutory surface 120 The upper expansion chambers 140 for being integrally formed the cell opened wide by the side of involutory surface 120 respectively and forming（140a、140b）, in the expansion of a side The small connected entrance 141 connected with the oily storage space 110 in dividing box is formed in the 140a of room, meanwhile, in the expansion chambers of the opposing party 140b is equipped with blow vent 142.And the sandwiched seal 103 on above-mentioned involutory surface 120 and punished in involutory surface 120 every both sides Expansion chambers 140a, 140b, meanwhile, on the seal 103 formed intercommunicating pore 130, with allow from above-mentioned oily storage space 110 The expansion chambers 140a of connection ventilates towards the expansion chambers 140b sides for possessing above-mentioned blow vent 142.

According to above-mentioned composition, when forming the gearbox 101 of partition type, only by being internally integrally formed expansion chambers 140 （140a、140b）, just can form air-breather 104 using the seal 103 being necessarily mounted at case involutory surface 120.

Therefore, special part need not be added as air-breather, just can formed with labyrinth structure or expansion chambers Air-breather, it can be reduced with simply being formed cost of implementation.

In addition, above-mentioned expansion chambers 140（140a、140b）It is arranged on and is formed at the outer of each upper side of dividing box unit bodies 102 The transmission parts of wall 122 and arranging in its vicinity（That is, above-mentioned output shaft 152 and first axle 161, also have around the arranging of these axles Gear class etc.）Between space in.

According to above-mentioned composition, by using each upper side of dividing box unit bodies 102 outer wall 122 and arrange in its vicinity Between transmission parts, so-called idle space forms expansion chambers 140（140a、140b）, the shape without the entirety of gearbox 101 Shape change or dimension modifying etc., it just can compactly form the air-breather 104 of high functionality.

[other embodiment]

Though a preferred embodiment of the sheller unit of the present invention is illustrated referring to the drawings above, the present invention It is not limited to the composition of the embodiment.Such as the various changes of act set forth below can be carried out.

（1）As sheller unit, the full feed type combine harvester of diagram can also be substituted（whole culm discharging type combine-harvester）, and it is equipped on the fringe point side that harvesting straw is only supplied to threshing chamber 14 Half feed type combine harvester（culm head discharging type combine-harvester）Sheller unit.

（2）As thrashing cylinder 16, can not both possess the portion of being grilled into 41, whole broach or threshing can also be equipped with the portion that is grilled into 41 Tooth 48 rather than helical tooth 43.

（3）As thrashing cylinder 16, each thrashing cylinder framework（Bar-like member）47 can use pole steel, square rod steel, square tube Steel, angle section or groove material etc..

（4）In thrashing cylinder 16, thrashing cylinder framework（Bar-like member）47 equipment quantity can carry out various changes, such as can Equip eight thrashing cylinder frameworks 47.

（5）, can also be in a manner of it can not change direction by multiple thrashing cylinder frameworks in thrashing cylinder 16（Bar-like member） 47 are fixedly mounted on each plate 44 ~ 46.

（6）All threshing tooths 48 that bar-like member 47 can be equipped are welded and fixed on bar-like member 47, or Ground bolt connection can be assembled and disassembled in bar-like member 47.

（7）All threshing tooths 48 or the threshing tooth 48 of a part that bar-like member 47 can be equipped are formed as having Foliaceous with the rotation of thrashing cylinder 16 by threshing processed material towards the guide surface of threshing processing direction downstream guiding, or L-shaped is bent to, so as to the function as guide portion, i.e. as the rotation of thrashing cylinder 16 is by threshing processed material court To threshing processing direction downstream guiding.

（8）As threshing tooth 48, square rod steel or circular pipe etc. can be used, or can use and be bent to U-shaped Or the material of V-shaped.

（9）Configuration space as threshing tooth 48 can carry out various changes, such as by thrashing cylinder framework（Bar-shaped portion Part）47 equipment quantity is set to the occasion of 3 multiple, carries out configuration setting so that each threshing tooth 48 is positioned in fore-and-aft direction Upper and adjacent thrashing cylinder framework（Bar-like member）47 threshing tooths 48 equipped stagger the state of 1/3 spacing, or, will be de- Grain cylinder framework（Bar-like member）47 equipment quantity is set to the occasion of 4 multiple, carries out configuration setting so that each threshing tooth 48 is fixed Position into the longitudinal direction with adjacent thrashing cylinder framework（Bar-like member）47 threshing tooths 48 equipped stagger the shape of 1/4 spacing State.Or such as also the configuration space of threshing tooth 48 can be set to difference in toe lateral and rear portion side, to make rear portion side The time interval of threshing tooth 48 is bigger than the time interval of the threshing tooth 48 of toe lateral.

（10）Partition member 45 can carry out various changes in its composition, shape or equipment quantity etc., such as can To be formed partition member 45 with the porous plate of circle, or, multiple rods that each bar-like member 47 is extended to from fulcrum 15 can be used The connection member of the ring-type of the extension component of shape and the extension side of each extension component of connection forms partition member 45.Moreover, Partition member 45 can be formed as being configured to have more by the shape such as coniform in threshing processing rear downstream more by its outer circumferential side Have and guide threshing processed material to the function around thrashing cylinder 16, or can possess multiple partition members 45 on thrashing cylinder 16.

（11）It can also be provided with a special wind apparatus（Such as windmill）, to produce from de- for relative partition member 45 The wind that grain processing direction upstream side is flowed towards partition member 45.

（12）Top plate 24 can be equipped it is all send dirt valve 49 or a part send dirt valve 49 to be formed as not arriving Up to the left and right of top plate 24 either one side edge part 24C or left and right both sides side edge part 24C short length.

（13）Dirt valve 49 can will be sent to be configured to correspond to the threshing processing object amount in threshing chamber 14 and carry out aperture regulation Movable manner, with further improve threshing performance close threshing efficiency.

（14）As top plate 24, it is curved to be formed as the rotational trajectory K that its bending section 24A is drawn along the end of threshing tooth 48 It is bent.In addition, alternative bending section 24A, is configured to have to be bent to form in a manner of covering from above the upper side of thrashing cylinder 16 Bending section.

（15）As thrashing cylinder 16, its threshing processing unit 42 can be by being configured to drum type brake with lower component：Be formed as cylindric Cylinder portion；To equip two spirals in cylinder portion periphery with being grilled into a manner of portion's 41 possessed, two helical blades 43 are connected Body；And with towards the state that foreign side protrudes separate predetermined distance dismantledly equip each conveyor screw peripheral part it is multiple Threshing tooth etc..

（16）As thrashing cylinder 16, can be installed in a detachable manner on the outer peripheral face of its leading section 41 single Helical blade 43, or, the spiral of more than three can be installed in a detachable manner on the outer peripheral face of its leading section 41 Blade 43.

（17）, can be on the outer peripheral face of its leading section 41 as thrashing cylinder 16, spirally arrangement is equipped with dismantled and assembled Ground is installed by multiple bearing metal parts of helical blade 43.

（18）As helical blade 43, it is more outfit can spirally to be arranged on the outer peripheral face of thrashing cylinder leading section 41 Individual leaf shape part and form.

（19）As conveying assisted guides 51, be both configured to can not left and right segmentation, can also be configured to point It is cut into more than three parts.

（20）As assisted guides 51 are conveyed, it is configured to be only located at the part in the direction of rotation downstream of thrashing cylinder 16 51B can be dismounted.

（21）, can be using steel such as the carbon steel beyond stainless steel as the raw material of conveying assisted guides 51.

（22）As seaming component 50, can using that can assemble and disassemble be arranged on by the way of accepting on net 17.

（23）In the above-described embodiment, expansion chambers 40 are arranged on and are formed at each upper side of dividing box unit bodies 2 In space between the transmission parts of outer wall and arranging in its vicinity, but be not restricted to that this, as long as than oily storage space 10 In the high position of predetermined fuel head, then appropriate position can be selected to be arranged.

（24）The small connected entrance 41 for being formed at the first expansion chambers 40a is not limited to such open at one end shown in embodiment Otch or the suitable shape such as circular hole mouth, open up position for it, as long as will can store oil indoors to The position that the oily storage space 10 of lower section is discharged can freely be set.

（25）, can be in pair with each segmentaion position in the occasion that dividing box is such as three segmentation above more than two segmentations The opposite position in conjunction face 20 forms expansion chambers 40 respectively, and clamps the seal 3 with intercommunicating pore 30, and forming has more than three sections Labyrinth structure air-breather 4.

Claims (17)

1. a kind of sheller unit, it is characterised in that possess thrashing cylinder（16）, the thrashing cylinder is with along being supplied to threshing chamber（14） The conveying direction of harvesting straw be set up in fulcrum on fore-and-aft direction（15）It is driven in rotation for fulcrum, to above-mentioned harvesting straw Implement threshing processing,

Above-mentioned thrashing cylinder (16) includes multiple bar-like members (47), supporting member (44,46) and multiple threshing tooths (48), above-mentioned Multiple bar-like members (47) with along the posture of above-mentioned fulcrum above-mentioned thrashing cylinder circumferentially spaced predetermined distance be equipped with；On State supporting member (44,46) and be provided in the front and rear of above-mentioned fulcrum, to support these bar-like members；Above-mentioned multiple threshing tooths (48) Equipment on above-mentioned each bar-like member, with from above-mentioned bar-like member towards the foreign side of above-mentioned thrashing cylinder protrude posture in front and back Spaced up interval；

Above-mentioned threshing tooth（48）It is made up of wheel chair access pole steel,

Above-mentioned thrashing cylinder（16）Upper side by top plate（24）Covering, in above-mentioned top plate（24）It is upper to send dirt valve equipped with multiple （49）, it is the multiple to send dirt valve（49）Will be along with above-mentioned thrashing cylinder（16）Rotation driving and be transported to above-mentioned threshing chamber （14）Top processed material to threshing processing direction downstream guiding, it is above-mentioned multiple to send dirt valve（49）According in the longitudinal direction Separate the state of predetermined distance arrangement and downstream rolled from the upstream side in threshing processing direction when overlooking and tiltedly filled It is standby,

Above-mentioned thrashing cylinder（16）Including being grilled into portion（41）With threshing processing unit（42）, it is described to be grilled into portion（41）It is arranged on above-mentioned front and rear Above-mentioned thrashing cylinder on direction（16）Leading section, the threshing processing unit（42）Portion is grilled into above-mentioned（41）Rear end connection,

Multiple dirt valve is sent above-mentioned（49）In, including equipment is in above-mentioned top plate（24）Vertical view when with above-mentioned being grilled into portion（41）Position Position send dirt valve corresponding to putting.

2. sheller unit as claimed in claim 1, it is characterised in that above-mentioned bar-like member（47）By pipe steel or square hollow section steel Material is formed,

In above-mentioned bar-like member（47）In formed with multiple mounting holes, above-mentioned threshing tooth inserts above-mentioned each mounting hole.

3. sheller unit as claimed in claim 2, it is characterised in that above-mentioned mounting hole is formed through above-mentioned bar-like member （47）In.

4. such as sheller unit according to any one of claims 1 to 3, it is characterised in that above-mentioned threshing tooth welding is fixed on State bar-like member（47）.

5. sheller unit as claimed in claim 4, it is characterised in that in above-mentioned bar-like member（47）In formed with multiple installations Hole,

The terminal part of above-mentioned threshing tooth is prominent to the radially inner side of above-mentioned thrashing cylinder from above-mentioned mounting hole, and the protuberance is in above-mentioned footpath Above-mentioned bar-like member is fixed to inner side welding（47）.

6. such as sheller unit according to any one of claims 1 to 3, portion is grilled into above-mentioned（41）Equipped with helical blade （43）, the helical blade is with above-mentioned thrashing cylinder（16）Rotation and be grilled into and convey towards rear and be grilled into portion towards above-mentioned （41）The harvesting straw that supply conveying comes,

Portion is grilled into above-mentioned（41）Outer peripheral face on, with towards above-mentioned thrashing cylinder（16）The state that erects outward of footpath be fixed with Support plate（41A）,

Above-mentioned helical blade（43）Detachably it is installed on above-mentioned support plate（41A）,

Step up and state support plate（41A）Leading flank and above-mentioned thrashing cylinder（16）Outer peripheral face the above-mentioned support plate of supporting is installed （41A）Ribs（41B）.

7. sheller unit as claimed in claim 4, portion is grilled into above-mentioned（41）Equipped with helical blade（43）, the helical-blade Piece is with above-mentioned thrashing cylinder（16）Rotation and be grilled into and convey towards rear and be grilled into portion towards above-mentioned（41）Supply conveying comes Harvesting straw,

Portion is grilled into above-mentioned（41）Outer peripheral face on, with towards above-mentioned thrashing cylinder（16）The state that erects outward of footpath be fixed with Support plate（41A）,

Above-mentioned helical blade（43）Detachably it is installed on above-mentioned support plate（41A）,

Step up and state support plate（41A）Leading flank and above-mentioned thrashing cylinder（16）Outer peripheral face the above-mentioned support plate of supporting is installed （41A）Ribs（41B）.

8. sheller unit as claimed in claim 5, portion is grilled into above-mentioned（41）Equipped with helical blade（43）, the helical-blade Piece is with above-mentioned thrashing cylinder（16）Rotation and be grilled into and convey towards rear and be grilled into portion towards above-mentioned（41）Supply conveying comes Harvesting straw,

Portion is grilled into above-mentioned（41）Outer peripheral face on, with towards above-mentioned thrashing cylinder（16）The state that erects outward of footpath be fixed with Support plate（41A）,

Above-mentioned helical blade（43）Detachably it is installed on above-mentioned support plate（41A）,

Step up and state support plate（41A）Leading flank and above-mentioned thrashing cylinder（16）Outer peripheral face the above-mentioned support plate of supporting is installed （41A）Ribs（41B）.

9. sheller unit as claimed in claim 6, it is characterised in that above-mentioned helical blade（43）With only in above-mentioned support plate （41A）In be located at above-mentioned thrashing cylinder（16）Diametric(al) on the outside of the state that is repeated of position, be detachably attached to Above-mentioned support plate（41A）.

10. sheller unit as claimed in claim 7, it is characterised in that above-mentioned helical blade（43）With only in above-mentioned support plate （41A）In be located at above-mentioned thrashing cylinder（16）Diametric(al) on the outside of the state that is repeated of position, be detachably attached to Above-mentioned support plate（41A）.

11. sheller unit as claimed in claim 8, it is characterised in that above-mentioned helical blade（43）With only in above-mentioned support plate （41A）In be located at above-mentioned thrashing cylinder（16）Diametric(al) on the outside of the state that is repeated of position, be detachably attached to Above-mentioned support plate（41A）.

12. sheller unit as claimed in claim 6, it is characterised in that above-mentioned helical blade（43）It is attached to above-mentioned support plate （41A）Trailing flank.

13. sheller unit as claimed in claim 7, it is characterised in that above-mentioned helical blade（43）It is attached to above-mentioned support plate （41A）Trailing flank.

14. sheller unit as claimed in claim 8, it is characterised in that above-mentioned helical blade（43）It is attached to above-mentioned support plate （41A）Trailing flank.

15. sheller unit as claimed in claim 9, it is characterised in that above-mentioned helical blade（43）It is attached to above-mentioned support plate （41A）Trailing flank.

16. sheller unit as claimed in claim 10, it is characterised in that above-mentioned helical blade（43）It is attached to above-mentioned support plate （41A）Trailing flank.

17. sheller unit as claimed in claim 11, it is characterised in that above-mentioned helical blade（43）It is attached to above-mentioned support plate （41A）Trailing flank.