CN104365291B - Sheller unit - Google Patents

Abstract

The present invention provides a kind of sheller unit that processing capacity is excellent, and load needed for threshing processing will not be caused even if the occasion of large supply threshing processed material increases, and can implement sufficient threshing to threshing processed material and handle.The sheller unit have by with fulcrum (15) for fulcrum is driven to rotate and to be supplied to threshing chamber (14) harvesting straw implement threshing processing thrashing cylinder (16), the thrashing cylinder (16) includes multiple bar-like members (47), bearing part (44,46) and multiple threshing tooths (48), and multiple bar-like members (47) are equipped in a row with the circumferentially spaced predetermined distance along the posture of fulcrum (15) in thrashing cylinder (16)；Bearing part (44,46) is provided in the front and back of fulcrum (15), to support these bar-like members (47)；Multiple threshing tooth (48) equipments are arranged on each bar-like member (47) with foreign side's posture outstanding from bar-like member (47) towards thrashing cylinder (16) with separating predetermined distance in the longitudinal direction.

Description

Sheller unit

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

Technical field

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

Background technique

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

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

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

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

In above-mentioned composition, since 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, will be a large amount of due to high-speed job etc. Harvesting straw is supplied to the occasion of threshing chamber as threshing processed material, and there are the danger of its processing space saturation, and when generation should When saturation, since threshing processed material is detained in the process space, therefore threshing processed material is easy to cause not carry out at sufficient threshing Load needed for managing the unfavorable condition just leaked down from bearing net or threshing processing increases and makes the biography of opposite thrashing cylinder transmission The unfavorable condition etc. of dynamic system equivalent damage.

Summary of the invention

The purpose of the present invention is to provide a kind of sheller unit for having the excellent threshing barrel structure of processing capacity, threshings Load needed for barrel structure will not lead to threshing processing even if the occasion of large supply threshing processed material increases, can be to de- Grain processed material implements sufficient threshing processing.

In order to achieve the above objectives, in the present invention, have by using fulcrum as fulcrum is driven to rotate 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, supporting part 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 is equipped in a row, and the front and back of above-mentioned fulcrum is arranged in support these bar-like members in above-mentioned bearing part, above-mentioned Multiple threshing tooth equipments are on above-mentioned each bar-like member, from above-mentioned bar-like member towards the foreign side of above-mentioned thrashing cylinder appearance outstanding Gesture separates predetermined distance arrangement in the longitudinal direction.

Constituted according to this feature, thrashing cylinder has a space being connected to threshing chamber inside it, allow threshing processed material into Enter to the inner space.Thus, in its spinning movement, surrounding threshing processed material is stirred on one side and enters inner space Threshing processed material, on one side by multiple bar-like members and threshing tooth to these threshing processed materials implement strike or comb into etc. and carry out Threshing processing.

That is, even if being fed into the occasion of threshing chamber as threshing processed material in largely harvesting straw, also can It is enough to be efficiently used 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 processing space saturation.As a result, it is possible to avoid due to threshing processed material be detained or Processing space is saturated, threshing processed material does not carry out abundant threshing and handles the unfavorable condition and threshing just leaked down from bearing net Load needed for processing increases and makes the generation of unfavorable condition of transmission system damage of opposite thrashing cylinder transmission etc..

Moreover, being equipped with multiple bar-like members in a row by the circumferentially spaced predetermined distance in thrashing cylinder, can prevent Long stalk is wound up on bar-like member, can be avoided the delay of threshing processed material caused by due to the winding.Moreover, being revolved in thrashing cylinder When rotation is made, not only 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.

It is constituted according to this feature, by partition member, can inhibit the threshing processing simple grain by thrashing cylinder toe lateral Grain or enter unthreshed straw etc. of thrashing cylinder inner space to threshing processing side in the initial stage of threshing processing It downstream flows, and since the single grain or unthreshed straw etc. with the rotation of thrashing cylinder are directed to thrashing cylinder Around, thus it is possible to prevent not stop due to single grain or unthreshed straw etc. by the inner space of thrashing cylinder, with Threshed straw from threshing direction end of downstream side be discharged caused by the generation lost three times.

Therefore, though large supply threshing processed material occasion, will not incur threshing processing needed for load increasing Greatly, sufficient threshing can be implemented to threshing processed material to handle, moreover, because the generation lost three times, Neng Gou can be prevented It avoids improving threshing performance or grain recovery efficiency while the damage of thrashing cylinder transmission system caused by increasing because of load etc., As a result, it is possible to provide the threshing barrel structure of durability or the excellent sheller unit of processing capacity.

In addition, if equipment generates 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.

It is constituted according to this feature, the threshing processed material blocked by partition member quilt under the sorting wind action from windmill It is blown open (around thrashing cylinder) around to partition member, with the rotation of thrashing cylinder towards threshing around partition member The flowing of direction downstream side is handled, thus, it is possible to which threshing processed material is avoided to be deposited in the nearby position of partition member.

Therefore, it can prevent the accumulation because of threshing processed material from processing capacity being caused 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 a to send dirt valve, it is multiple send dirt valve along with the rotation driving of above-mentioned thrashing cylinder and by above-mentioned harvesting straw to threshing direction Downstream side guidance.

It is constituted according to this feature, is fed into the harvesting straw of threshing chamber with the rotation of thrashing cylinder, on one side by by more What a threshing tooth was implemented largely hits and combs into the flailing action realized, is conveyed on one side towards the top of threshing chamber, with Reach threshing chamber top, it is multiple send dirt valve under the action of by towards threshing direction downstream side guide.

That is, having multiple threshing tooths on thrashing cylinder, it can sufficiently obtain and threshing processed material is beaten by threshing tooth Hit or comb into etc. the flailing action appropriate realized, and threshing processing can be conveyed towards threshing direction downstream side Object.

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

It therefore, can by the conveying for making that dirt valve is sent to be substantially carried out by threshing processed material to threshing direction downstream side Threshing processed material will not be damaged towards the transportation performance in threshing direction downstream side, 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 that dirt valve is sent to be formed as, have and step up the length of the left and right sides edge for stating top plate, at this point, 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 The conveying in object towards threshing direction downstream side guides.Therefore, it is returned in the threshing performance and grain for realizing multiple threshing tooths While the raising for rate of producing effects, can be realized threshing processed material towards threshing direction downstream side transportation performance raising.

Moreover, when above-mentioned top plate is formed as, approximately along the rotation with above-mentioned thrashing cylinder by the end of above-mentioned threshing tooth When holding the rotational trajectory bending drawn out, the rotation with thrashing cylinder can be made on one side and be delivered at the threshing on threshing chamber top Reason object along top plate or send dirt valve, on one side smoothly towards guiding below threshing direction downstream side.Therefore, in reality Now while the raising of the threshing performance and grain recovery efficiency of multiple threshing tooths, threshing processed material can be realized towards threshing The raising for handling the transportation performance in direction downstream side, additionally it is possible to grain damage caused by avoiding due to the collision with top plate Deng.

In a preferred embodiment, above-mentioned thrashing cylinder front end 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 front end supply conveying come harvesting straw, above-mentioned spiral shell Vane piece is dismantledly installed.

It is constituted 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 It closes, can only replace the helical blade of abrasion.It is not equipped dismantledly with by welding etc. in thrashing cylinder front end as a result, The occasion of helical blade is compared, and time and cost needed for capable of significantly cutting down replacement helical blade, as a result, it is possible to make to grind The replacement of the helical blade of damage is easy to carry out.Also, due to the helical blade of readily replaceable abrasion, it is thus possible to easily avoid When letting alone helical blade abrasion caused helical blade to the reduction for being grilled into conveying effect of harvesting straw, with the reduction and So that threshing processing capacity reduces such unfavorable condition.

It therefore, can by implementing that helical blade is removably mounted on such simple improvement on thrashing cylinder front end Simply and inexpensively to carry out the appropriate disposition for helical blade abrasion, as a result, it is possible to easily avoid due to spiral The reduction of the threshing processing capacity of blade wear.

On the basis of this composition, in the lower section of above-mentioned thrashing cylinder setting conveying assisted guides, conveying auxiliary guidance Part is configured to cover the front end of above-mentioned thrashing cylinder from below, comes to accept towards the supply conveying of the front end of above-mentioned thrashing cylinder Harvesting straw, and assist by above-mentioned helical blade to harvesting straw carry out be grilled into conveying, the conveying assisted guides structure Become, the part for being located at least in the direction of rotation downstream side of above-mentioned thrashing cylinder can dismount, at this point, 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 replaced Fall.The occasion phase on supporting frame etc. is not equipped dismantledly for assisted guides are conveyed by welding etc. as a result, with for example Than time and cost needed for capable of significantly cutting down replacement conveying assisted guides, as a result, it is possible to keep the conveying of abrasion auxiliary The replacement of guiding piece is helped to be easy 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 become larger and make helical blade to harvesting straw be grilled into conveying effect reduce, with the reduction and make threshing processing capacity Reduce such unfavorable condition.

In addition, being grilled into the harvesting straw etc. of conveying by threshing by helical blade towards rear with the rotation of thrashing cylinder The influence of cylinder rotation is biased against the thrashing cylinder direction of rotation downstream side part concentrated in conveying assisted guides.Thus, it is conveying In assisted guides, it is located at the part in the thrashing cylinder direction of rotation downstream side, it is fierce with the contact of harvesting straw etc., More it is easy to happen the abrasion due to the contact.

Therefore, if considering this aspect and constituting the direction of rotation downstream side part for conveying the thrashing cylinder in assisted guides For the form that can be assembled and disassembled, then to convey the thrashing cylinder in assisted guides due to contacting with fiercenesses such as harvesting straws for a long time Direction of rotation downstream side part noticeable wear occasion, only the part of the abrasion can be replaced.It is entire with replacement as a result, The occasion of conveying assisted guides compares, cost needed for capable of further cutting down replacement.

Therefore, by implementing conveying assisted guides being configured to its direction of rotation downstream side for being located at least in thrashing cylinder Part can assemble and disassemble such simple improvement, can simply and inexpensively carry out the appropriate place for conveying assisted guides abrasion It sets, as a result, it is possible to easily avoid the abrasion due to conveying assisted guides, threshing processing capacity reduction.

In a preferred embodiment, it is equipped with bearing net in 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 bearing net and above-mentioned top plate Part, the seaming component are formed to have the guide surface for being concatenated the inner surface of bearing net and top plate.

It is constituted according to this feature, is 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 can only replace the seaming component of abrasion.It can not be filled in bearing net or top plate with by welding etc. as a result, Equip seaming component occasion with tearing open is compared, time and cost needed for capable of significantly cutting down the seaming component of replacement abrasion, As a result, it is possible to make the replacement of the seaming component of abrasion be easy 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 to gather in straw etc. cannot bearing net across thrashing cylinder and top plate it is suitable Channel Group is dynamic to which threshing processing capacity reduces such unfavorable condition.

Therefore, by implementing dismantledly to equip seaming component into such simple improvement between bearing net and top plate, The appropriate disposition for seaming component abrasion can simply and be inexpensively carried out, as a result, it is possible to easily avoid due to connecing Stitch component wear, threshing processing capacity reduction.

The advantageous effects played are constituted and are made of this feature about other features, by while referring to attached drawing Reading following explanation will become clear.

Detailed description of the invention

Fig. 1 is the whole 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 for indicating the composition of front end of sheller unit.

Fig. 5 is the partial vertical sectional front view for indicating the composition of front and back middle part of sheller unit.

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

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

Fig. 8 is the cross-sectional view for indicating the major part of mounting structure of helical blade.

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

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

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

Figure 12 be indicate to send dirt valve length and configuration major part cross-sectional plan view.

Figure 13 is the top view for indicating the major part of composition of conveying assisted guides.

Figure 14 is the longitudinal cross-sectional side view for indicating the major part of composition of conveying assisted guides.

Figure 15 is the perspective view for indicating the major part of composition of bearing net.

Figure 16 is the perspective view for indicating the major part of composition of 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 indicating the outline structure of air-breather.

Specific embodiment

Full feed type combine harvester (the whole culm by rice or wheat etc. as harvesting object is shown in Fig. 1 Discharging type combine-harvester) whole side.Its whole top surface is shown in Fig. 2.Such as these figures It is shown like that, full feed type combine harvester the body framework 1 by formation such as square tube steel right front portion equipped with engine 2 With speed change gear (not shown).In the lower part of body framework 1, equipped with by through transmitting such as speed change gears from engine 2 Power-actuated pair of right and left crawler type running device 3.In the front of body framework 1, liftable is swingingly connected with harvesting and makees The harvesting conveying device 4 stood straw for the plant of harvesting object and rearward convey it.In the left side of body framework 1, carry There is sheller unit 5, which implements threshing processing to the harvesting straw from harvesting conveying device 4, meanwhile, also to logical It crosses the threshing and handles obtained processed material progress sorting process.Body framework 1 right side equipped with sack-filling device 6, 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, which is formed with, takes Drive Section 7.

The crawler type running device 3 of left and right is so constituted, that is, based on taking, the cross that Drive Section 7 has is shuttle-type The swinging operation of neutral reply type control stick 8 in the lateral direction, steering system movement (not shown), switches as a result, 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 travelling 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 other than object.Before gathering in conveying device 4 Above portion, taken off equipped with the fringe point side that straw is stood in the plant for combing the harvesting object branched away by the nearside divider 9 of left and right towards rear The rotating drum 10 entered.In the bottom of harvesting conveying device 4, cutting for the strain root side of straw is stood equipped with the plant that object is gathered in cutting Breaking mechanism 11.At the rear of cutting mechanism 11 equipped with auger conveyor 12, which will be cut by cutting mechanism 11 The plant having no progeny stands straw (harvesting straw) and is biased to be collected into the specified location of left and right directions, also, from the specified location after It sends 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 at feeder 13.

The lift cylinders (not shown) for the fluid pressure type that harvesting conveying device 4 is set up by across body framework 1 and feeder 13 Movement carries out lifting and swinging by fulcrum of the tie point of body framework 1 and feeder 13.The movement of lift cylinders, by based on behaviour The action state of the swinging operation switching control valve (not shown) of vertical pole 8 forward and backward and controlled, the control valve control work Make the flowing of oily OQ t cylinder.That is, harvesting conveying dress can be made by swinging operation control stick 8 forward and backward 4 liftings are set, the harvesting height adjusting etc. of the opposite height and position for planting vertical straw of cutting mechanism 11 can be changed.

As shown in Figures 3 to 5 like that, threshing chamber 14 is formed on the top of sheller unit 5.In threshing chamber 14, it is equipped with There is the front and back set up with the conveying direction along harvesting straw to the thrashing cylinder 16 that fulcrum 15 is that fulcrum is rotated.In thrashing cylinder 16 Lower section be equipped with bearing net 17, which is formed as cover the lower side of thrashing cylinder 16 from below, front viewing in U The shape of font accepts the harvesting straw handled with the rotation of thrashing cylinder 16 by threshing, and make to be handled by threshing Reason object leaks down.In sheller unit 5, at the rear of the bearing net 17 of its threshing direction end of downstream side, it is formed with and is used for By threshing, treated that straw is discharged to the stalk outlet 18 outside machine.In the lower section of bearing net 17, leaked equipped with to from bearing net 17 Under processed material implement to sieve the swing sorting mechanism 19 of sorting process.In the front lower place for swinging sorting mechanism 19, equipped with court To from bearing net 17 leak down come processed material and sieve in sorting process processed material supply sorting wind and to these processed materials reality Apply the windmill 20 of pneumatic separating processing.At the rear of windmill 20, it is formed with and leaks down to from the toe lateral for swinging sorting mechanism 19 The recoverer 21 that processed material is recycled.At the rear of a recoverer 21, it is 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 recycled.Swing sorting mechanism 19 rear, be formed with by not from Sorting mechanism 19 is swung to leak down and be transported to and swing the processed material of the rear end of sorting mechanism 19 and be discharged to outlet outside machine 23.In the top of thrashing cylinder 16, it can be opened and closed the top plate 24 for being equipped with the upper side for covering from above thrashing cylinder 16, it will be with de- The rotation of grain cylinder 16 and drawn by the harvesting straw and threshing processed material that come towards the conveying of the top of thrashing cylinder 16 towards bearing net 17 It leads.

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

The fulcrum 15 of thrashing cylinder 16 can rotatably the antetheca 26 across sheller unit 5 and rear wall 27 be set up.Also, thrashing cylinder 16 using the power from engine 2 via transmitting such as windmills 20, is that fulcrum is driven to the right of front viewing with fulcrum 15 Dynamic rotation, is driven by the rotation, is implemented threshing processing to the harvesting straw of supply to threshing chamber 14, is promoted the simple grain of grain Change, meanwhile, the body rear in the harvesting straw towards threshing direction downstream side is conveyed.

Bearing net 17 is created as the spill bearing net of clathrate, catches the harvesting straw of supply to threshing chamber 14, auxiliary The threshing processing that 16 pairs of thrashing cylinder harvesting straws carry out.Specifically, bearing net 17 is caught dynamic with the rotation of thrashing cylinder 16 on one side The harvesting straw for making and being handled by threshing makes to handle obtained single grain or the paddy with branch stalk by the threshing on one side The swing sorting mechanism 19 of processed materials downward such as grain or the stalk crumb generated by threshing processing leaks down, and on the other hand, prevents Threshed straw etc. is leaked down towards sorting mechanism 19 is swung.

Swing the vertical view viewing that sorting mechanism 19 has the driving of driving mechanism 28 by cam-type and swings to front-rear direction 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 rough segmentation selection 30, primary dcreening operation 31, strawwalker 32.In the lower part 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.On the top for swinging sorting mechanism 19, connect by the grain pan 30 or primary dcreening operation 31 or strawwalker 32 on top The sorting process object to leak down in the state that simple grain straw or stalk crumb etc. mix from bearing net 17 is stayed in, carries out sieving the thick of sorting Sorting process.In the lower part for swinging sorting mechanism 19, caught by the grain pan 33 or grain sieve 34 of lower part in simple grain straw or The sorting process object that grain etc. with branch stalk leaks down in the state of mixing from primary dcreening operation 31 carries out the refining-sorting processing for sieving sorting. As a result, by the sorting of sorting process object become the single grain as an object, the grain obstructed as secondary object with branch or The impurityes such as stalk crumb, as dust such as the stalk crumbs of object three times.

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

Recoverer 21, will be from swing according to the state for eliminating the dust such as straw swarf by the sorting wind from windmill 20 The single grain that the grain sieve 34 of sorting mechanism 19 leaks down is recycled as an object.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 transmitting such as windmills 20. An object being recovered to by a recoverer 21 direction is connected with and raises square auger body 37(reference in its right end by conveyor screw 36 Fig. 2) convey.

Secondary recovery portion 22 is flowed down not leaking down from the grain sieve 34 for swinging sorting mechanism 19 from the rear end of grain sieve 34 The grain with branch stalk or the impurityes such as stalk crumb and the grain obstructed with branch to leak down from the strawwalker 32 for swinging sorting mechanism 19 Or the impurityes such as stalk crumb are recycled as secondary object.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 transmitting such as windmill 20 is driven.Secondary spiral body 38 will be by secondary returning The secondary object that receipts portion 22 is recovered to is conveyed towards the secondary foldback mechanism 39(being connected in its right end referring to Fig. 2).

It raises square auger body 37 object come by the conveying of conveyor screw 36 raise sending, and supplies it to pack and fill Set grain box 40(that 6 top has referring to FIG. 1 and FIG. 2).Secondary foldback mechanism 39 has to defeated by secondary spiral body 38 The secondary object sent carries out the reprocessing portion (not shown) of threshing processing again, raises and send that treated two by the reprocessing portion threshing Secondary object and be returned to and swing sorting mechanism 19(referring to Fig. 2 and Fig. 3).

Outlet 23 will not leak down from bearing net 17 and the threshed straw that flows down from stalk outlet 18 or by sieving sorting place Reason and pneumatic separating processing and be sorted and be transported to the stalk crumb etc. at rear for swinging sorting mechanism 19 and be discharged into outside machine.

As shown in figs. 3 to 9, thrashing cylinder 16 have the circular cone shape to form its front end be grilled into portion 41 and with This is grilled into the threshing processing unit 42 of the rear end connection in portion 41.The helical blade 43 there are two equipments on the outer peripheral surface 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 of such as lower member etc.: the first plate (an example of bearing part) 44, and one equipment is propping up The front of axis 15；Second plate (an example of partition member) 45, integrally equips the middle part before and after fulcrum 15；Third plate (an example of bearing part) 46, one equipment is in the rear end of fulcrum 15；The six roots of sensation thrashing cylinder structure being made of round tube steel etc. Frame (an example of bar-like member) 47, they with along the front and back of fulcrum 15 to posture thrashing cylinder 16 it is circumferentially spaced it is certain between It is supported every in a row；And multiple threshing tooths 48, they are with outstanding from thrashing cylinder framework 47 towards the foreign side of thrashing cylinder 16 Posture separates predetermined distance in the longitudinal direction and is equipped on each thrashing cylinder framework 47 in a row.

That is, on thrashing cylinder 16, according to the circumferential direction of threshing processing unit 42 and front and back it is spaced up it is set between Every the mode of arrangement, arrange equipped with the multiple threshing tooths 48 outstanding of the foreign side towards thrashing cylinder 16.In addition, as thrashing cylinder 16, the inner space S of threshing processing unit 42 is connected to threshing chamber 14, and processed material is allowed to enter its inner space S.As a result, In 16 spinning movement of thrashing cylinder, surrounding processed material is stirred on one side and enters the processed material of inner space S, on one side to this The threshing that a little processed materials such as implement to enter by the strike or comb of thrashing cylinder framework 47 and threshing tooth 48 at the progress is handled.

Moreover, because the inner space S of threshing processing unit 42 is connected to threshing chamber 14, even if will largely gather in straw It is supplied to the occasion of threshing chamber 14 as processed material, the inner space S of threshing processing unit 42 can also be handled as threshing and be used Processing space efficiently used.Thereby, it is possible to avoid the saturation of the delay of the processed material in processing space and processing space. As a result, it is possible to avoid being detained due to processed material or processing space saturation, processed material do not carry out abundant threshing processing just from Concave shaped portion 3 is leaked down or threshing handles required load and increases and make transmission system breakage of the opposite transmission of thrashing cylinder 16 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 six roots of sensation thrashing cylinder framework 47 in reason portion 42 also works as the threshing processing component for acting on processed material, thus, it is possible to realize The raising of threshing performance and threshing efficiency.

Moreover, because a large amount of grain by 16 toe lateral of thrashing cylinder threshing processing and leaked after simple grain from bearing net 17 Under, so that the processing object amount of the front and back middle part of thrashing cylinder 16 reduces, middle part before and after this, by the inner space of thrashing cylinder 16 The second plate 45 separated before and after S prevents the processed material in the inner space S of thrashing cylinder 16 towards threshing direction downstream effluent It is dynamic, in company with the rotation of thrashing cylinder 16 by around processed material guide threshing cylinder 16, waited by threshing tooth 48 to place to promote The strike or comb for managing object enter etc. and the threshing and single grain the leaking down from bearing net 17 that carry out.Thereby, it is possible to prevent three The generation of secondary loss, this loses three times leads to not stopping due to single grain contained in processed material or unthreshed straw etc. Cross the inner space S of thrashing cylinder 16, in company with threshed straw together by from the row's stalk for being formed in threshing direction end of downstream side Mouth 18 is discharged.

In turn, in the spinning movement of thrashing cylinder 16, together with the harvesting standing grain for being grilled into conveying under the action of the portion that is grilled into 41 Stalk attracts the extraneous gas of coming from supply mouth 25 with the rotation of helical blade 43 together, around thrashing cylinder 16 or at threshing It is swimmingly flowed in the inner space S in reason portion 42.Thereby, it is possible to prevent from threshing handle the stalk crumb etc. generated from supply mouth 25 to Feeder 13 flows out, and can more rapidly carry out the conveying of processed material towards threshing direction downstream side.

In addition, inside of the extraneous gas attracted from supply mouth 25 by the feeder 13 being connect with supply mouth 25, moreover, The feeder 13 will be formed in the harvesting recoverer of the harvesting conveying device 4 equipped with cutting mechanism 11 and auger conveyor 12 etc. On the delivery outlet (not shown) of recycling straw output be connected to supply mouth 25, thus, in 16 spinning movement of thrashing cylinder, Under the sucking action of the rotation generation of helical blade 43, pass through the stalk of harvesting processing or recovery processing generation in harvesting recoverer 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 inner space S of threshing processing unit 42.As a result, it is possible to inhibit to gather in stalk in recoverer The attachment accumulation of bits etc. is flown upward, and the conveying of harvesting straw caused by being able to suppress because of attachment accumulation is bad and because this flies Operating environment and the reduction of visibility etc. caused by raising.

Each plate 44 ~ 46 is in the circle centered on fulcrum 15, in its peripheral side away from spiral shell on the equidistant position of fulcrum 15 It tethers and is connected to thrashing cylinder framework 47.That is, in the peripheral 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, and the cylinder diameter of thrashing cylinder 16 increases.Thereby, it is possible to prevent harvesting straw opposite The winding of thrashing cylinder 16.

Each thrashing cylinder framework 47 is bolted on each plate 44 ~ 46, can be changed towards and be become its front-rear direction and take off The consistent usual posture of front-rear direction and its front-rear direction overturning posture opposite with the front-rear direction of thrashing cylinder 16 of grain cylinder 16, And the adjacent mutual front and back of thrashing cylinder 47 is towards on the contrary.

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 front-rear direction with a fixed spacing P, and in the mounting hole 47A from the front end of thrashing cylinder framework 47 to forefront Center distance L1 and have between half from the distance L2 at the center of the rear end of thrashing cylinder framework 47 mounting hole 47A square to the end The state of difference away from (=1/2P).

Also, each thrashing cylinder framework 47 is supported on each plate towards opposite state connection with the adjacent mutual front and back of framework On 44 ~ 46.It, can be with adjacent thrashing cylinder as a result, while using the framework of identical composition as six thrashing cylinder frameworks 47 The threshing tooth 48 of framework 47 is equipped on these thrashing cylinder frameworks 47 in the misplace state of half of spacing of front-rear direction to position Threshing tooth 48.As a result, not having to the interval for reducing adjacent threshing tooth 48, strike of the threshing tooth 48 to processed material just can be reduced Interval.

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

Moreover, by by each thrashing cylinder framework 47 be equipped to can will towards be changed as usual posture and overturning posture, It had been used for a long time in the abrasion for the threshing tooth 48 for being located at the threshing direction upstream side more easy to wear because handling more than object amount More become significant occasion in journey, by changing the direction of each thrashing cylinder framework 47, can at one stroke be had each thrashing cylinder framework 47 The position change of standby multiple threshing tooths 48 is at the threshing tooth 48 of threshing direction upstream side more easy to wear and not easy to wear Threshing direction downstream side threshing tooth 48 exchange state.Thereby, it is possible to will wear few threshing direction downstream The threshing tooth 48 of side is efficiently used as the threshing tooth 48 of threshing direction upstream side more than processing object amount.

Four (each two of the front and backs) in the rear and front end portion positioned at each thrashing cylinder framework 47 in multiple mounting hole 47A, 47B Mounting hole 47A is formed as the diameter smaller than the mounting hole 47B for being located at middle part.

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 having The pole steel with the level of the minor diameter 48a of 47A are constituted, and center and thrashing cylinder by fulcrum 15 are located at its center Mode on the line at the center of framework 47, dismantledly nut is fixed on thrashing cylinder framework 47.

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

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

In addition, the threshing direction downstream side more than threshed straw amount takes off if being located at thinning as shown in Figure 10 If the state of the threshing tooth 48A of 16 rear end of grain cylinder is equipped with, then the interval of the threshing tooth 48A of thrashing cylinder rear end becomes Greatly, the delay of the threshed straw of the hook of the threshing tooth 48A due to opposite thrashing cylinder rear end can be effectively inhibited.It is tied Fruit can promote threshed straw from the discharge of stalk outlet 18.

Such as Fig. 3 ~ 5, Figure 11 (a) and (b) and as shown in Figure 12,24 one of top plate is equipped with approximately along threshing tooth end The curved bending section 24A of the rotational trajectory K at end, positioned at the rear and front end of bending section 24A semicircle shape longitudinal wall part 24B, with And the linear side edge part 24C etc. positioned at bending section 24A or so.Top plate 24 is configured to, with the side edge part 24C institute on the left of it The multiple hinge 24D having are fulcrum, can be in the closed position and unlimited threshing for covering from above the upper side of thrashing cylinder 16 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 Multiple bolt 24E of the fixed top plate 24 of state.

Bending section 24A is formed by bending, so as to by its inner surface bearing net 17 downward swimmingly to threshing Cylinder 16 rotation and towards 16 top of thrashing cylinder conveying come processed material guide.On the inner surface of bending section 24A, according to Separate in the longitudinal direction predetermined distance arrangement state dismantledly fixed equipment it is multiple send dirt valve 49, this send dirt valve 49 companion The processed material on the top of threshing chamber 14 will be transported to the spinning movement of thrashing cylinder 16 towards threshing direction downstream side Guidance.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 be formed as across left and right side edge part 24C arc-shapeds.

That is, can be made on one side with the rotation of thrashing cylinder 16 by being equipped with bending section 24A on top plate 24 by multiple Threshing tooth 48 etc. taken off be delivered to the top of threshing chamber 14 processed material carry in bending section 24A inner surface or send dirt valve 49, It is swimmingly guided towards the bearing net 17 below threshing direction downstream side on one side.In addition, by will respectively send dirt valve 49 The arc-shaped for being formed as reaching the long size of the side edge part 24C in left side or the side edge part 24C of left and right, can effectively improve and respectively send Dirt valve 49A is to the guiding function that the processed material on 14 top of threshing chamber is rotated and be transported to thrashing cylinder 16.As a result, can not only Each threshing tooth 48 is formed as into the shape for having the effect conveyed to processed material, and is capable of forming to be appropriate for place The threshing dedicated shape that the strike or comb for managing object enter, meanwhile, it can convey and guide towards threshing direction downstream side well Processed material, as a result, it is possible to realize the raising of threshing performance and transportation performance to processed material.

On the side edge part 24C of left and right, it is dismantledly bolted the seaming component 50 of steel plate, the seaming component 50 It is bent to the guide surface 50a of the inner surface of inner surface and bearing net 17 with series winding bending section 24A.In this way, due to position Seam crossing between bearing net 17 and top plate 24 is dismantledly constituted to the seaming component 50 of the fierceness of the contact with processed material, So simply can only replace seaming component in the occasion of the seaming component 50 noticeable wear due to the contact with processed material 50.That is, not will lead to such as, by the seaming component 50, dismantledly occasion of the welding on top plate 24 is not wanted like that Together with abrasion seaming component 50 replace as entire top plate 24 it is troublesome and economic aspect unfavorable, can be suitably Carry out the disposition of the abrasion for seaming component 50.

In addition, each threshing tooth 48 end and respectively send dirt valve 49 lower edge between, in order to make to send dirt valve 49 to processed material Guidance it is good and be set with small gap.Moreover, between the end of each threshing tooth 48 and the inner surface of bearing net 17, in order to Promote single grain to leak down from bearing net 17, be set with the end than being set in each threshing tooth 48 and respectively send the lower edge of 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, on the outer peripheral surface that it is grilled into portion 41, Spirally welding has two support plate 41A.Also, it on the back side of these support plates 41A, is dismantledly bolted Corresponding helical blade 43, present their outer edge side than the outer rim of corresponding support plate 41A also than side shape outstanding outward State.

That is, supplying the harvesting straw for being delivered to supply mouth 25 by feeder 13 with de- in the thrashing cylinder 16 The rotation of grain cylinder and be grilled into conveying towards rear, so that two helical blades 43 are contacted and are easy to happen with straw fierceness is gathered in Due to the abrasion of the contact, which dismantledly equips being grilled into portion 41 in thrashing cylinder 16, exists as a result, Make the occasion of each 43 noticeable wear of helical blade by long-term use, simply only helical blade 43 can be carried out more It changes.As a result, not will lead to such as, by the helical blade 43, dismantledly occasion of the welding in the portion that is grilled into 41 is not wanted like that Together with abrasion helical blade 43 replace as the portion of being grilled into 41 it is troublesome or economic aspect unfavorable, can suitably into Disposition of the hand-manipulating of needle to the abrasion of helical blade 43.

In addition, multiple reinforcements of each support plate 41A using the front surface across them and the outer peripheral surface for being grilled into portion 41 welding 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 bearing net 17 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, assist the harvesting straw carried out by two helical blades 43 to be grilled into conveying.Convey assisted guides 51 by from Lower section covering be grilled into the lower side in portion 41, be bolted into pair of right and left guide member when facing viewing in substantially U-shaped 51A, 51B are constituted.Guide member 51A, 51B of left and right are made up of following manner, that is, are dismantledly being bolted to front and back Stainless steel on the pair of right and left supporting frame 52 on the top for the antetheca 26 and sheller unit 5 for being provided to sheller unit 5 The first plate 51a on, welding forms the second plate of the stainless steel of the guide surface from the antetheca 26 of sheller unit 5 to bearing net 17 51b。

That is, in the sheller unit 5, due to defeated to being grilled into for the harvesting straw carried out by two helical blades 43 It is sent into row auxiliary, conveying assisted guides 51 contact and then are easy to happen the abrasion generated by the contact with straw fierceness is gathered in, Conveying assisted guides 51 are equipped to the form that can be assembled and disassembled, also, are divided the left and right two that can control segmentation is consisted of Cut structure, that is, 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 side, as a result, because being used for a long time so that the whole significant mill of conveying assisted guides 51 The occasion of damage simply can only replace conveying assisted guides 53.In addition, because being used for a long time so that conveying assisted guides The occasion of left and right any one guide member 51A, 51B noticeable wear in 51, will can only wear significant guide member 51A, 51B are replaced.As a result, not will lead to such as will conveying assisted guides 51 not dismantledly welding in bearing net 17 The occasion waited with the supporting frame 52 of left and right will replace bearing net 17 or left and right branch together with conveying assisted guides 51 like that It holds and even conveys assisted guides 51 framework 52 or the occasion as constituting conveying assisted guides 51 indivisiblely Any side noticeable wear in left and right when also to replace troublesome or economic aspect as entire conveying assisted guides 51 not Benefit can suitably carry out the disposition of the abrasion for conveying assisted guides 51.

Moreover, because conveying assisted guides 51 are the strong high-strength stainless steel components of corrosion resistance, so can drop It is low because abrasion caused by replace frequency.

Such as Fig. 3, Fig. 5, Fig. 6 and as shown in Figure 15, bearing net 17 is by being formed as four undertaking wet ends of same shape Part 53 is constituted, and is dismantledly bolted in the supporting frame 52 of left and right.In each bearing net 53, equipped with skeleton construction Rectangular base frame 53A.In the frame of base frame 53A, according to the state of the circumferentially spaced certain intervals in thrashing cylinder 16, front and back The multiple taeniae 53B being made of band-like steel plate are equipped with to ground arrangement.Moreover, according to before as 16 axis directions 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 of the band-like steel plate for being bent to arc-shaped Multiple first horizontal stripe 53C.In turn, 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 of the piano wire rod for being bent to arc-shaped to ground arrangement.And And the configuration space of each 53B ~ 53D is set, so that the mesh being formed in the frame of base frame 53A is presented along thrashing cylinder 16 circumferentially Direction on the length horizontally long rectangle 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 is rotated, by for harvesting straw Threshing handles resulting single grain etc. with the rotation of thrashing cylinder 16 and this case that flowing on its direction of rotation, will accept It is in the longer horizontally long rectangle on the direction of rotation of thrashing cylinder 16 that net 17, which is configured to its mesh,.As a result, and by 17 structure of bearing net The occasion for being presented on the rectangle of longer lengthwise in the threshing direction (front-rear direction) of thrashing cylinder 16 as its mesh is compared, Single grain etc. is easier to leak down from the toe lateral of bearing net 17.As a result, it is possible to effectively inhibit due to single grain From the toe lateral of bearing net 17 leak down to be suppressed caused by peel the generation of grain.Moreover, by by each bearing net 53 are formed as identical shape, and the productivity of bearing net 17 or assemblability can be made to improve.

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

In the toe lateral (for relatively entire sorting plate 54, front side about 1/3 region) of sorting plate 54, viewing is overlooked In rectangle it is multiple leak down hole 54A arrangement be formed as rank rear the hole 54A that leaks down be located between the hole 54A that leaks down in forefront interlocking Shape.In the rear portion side (for relatively entire sorting plate 54, rear side about 2/3 region) of sorting plate 54, there is sorting piece 54a, 54b vertical view viewing in rectangle it is multiple leak down hole 54B, 54C arrangement be formed as rank rear leak down hole 54B, 54C be located at before Leaking down for column 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 The narrower and more against the top squamous of direction downstream side width is sorted by it.And it is located at the sorting piece of the left and right ends of sorting plate 54 54b is stamped and is formed as the size rectangle shorter than the sorting piece 54a of left and right center side, more sorts direction downstream side by it more lean on Top.

That is, due to the primary dcreening operation 31 for being constituted rough segmentation selection with single sorting plate 54, and it for example will be by band-like steel plate Multiple sieve lips (the チ ャ フ シ ー プ) arrangement constituted is equipped to separate the form of certain intervals in the longitudinal direction and constitute just The occasion etc. of sieve 31 is compared, and can be realized the simplification of composition and the reduction of cost.

Also, do not have by the toe lateral formation of the primary dcreening operation 31 in the high sorting process object of supply single grain containing ratio The hole 54A that leaks down of back-up chip select 54a, 54b, 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, it is possible to improve the simple grain for being located at a recoverer 21 of 34 lower section of grain pan 33 or grain sieve The rate of recovery of grain.

Have sorting piece 54a, 54b moreover, all around arranging to be formed in a staggered pattern by the rear portion side in primary dcreening operation 31 Leak down hole 54B, 54C, in sieving sorting process, the sorting process object 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.

In turn, by equipping primary dcreening operation 31 with raised inclination attitude backward, with the occasion for equipping primary dcreening operation 31 with flat-hand position It compares, in sieving sorting process, primary dcreening operation 31 releases sorting process object towards the top that sorting process direction upstream is surveyed Power becomes larger.Thus, when sieving sorting process, the conveying in sorting process object towards sorting direction downstream side is inhibited, together When, the up and down motion of sorting process object becomes fierce, it can be more effectively carried out the difference in specific gravity sorting of sorting process object, thus, promote Into heavy grain leaking down from respectively leak down hole 54B, 54C, moreover, single grain can be effectively inhibited from outlet 23 are discharged to the generation lost three times outside machine, and as a result, it is possible to realize the raising of grain recovery efficiency.

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

In addition, be formed in primary dcreening operation 31 do not have sorting piece 54a, 54b leak down hole 54A and have sorting piece 54a, 54b Leak down hole 54B, 54C ratio, various changes can be carried out according to type of the grain sorted etc..

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

It is set to as shown in Figure 3, the sorting wind by upper section wind path R1 in the sorting wind from windmill 20 passes through The wind path R4 that is formed in screen box 29 and flowed towards the second plate 45 of thrashing cylinder 16.Thereby, it is possible to towards around thrashing cylinder 16 Wind model prevents the processed material of the flowing to threshing direction downstream side by the second plate 45.As a result, it is possible to avoid locating Reason object brings obstacle to threshing processing in the accumulation of the nearby position of the second plate 45.

Such as Fig. 3 and as shown in Figure 6, the threshing tooth 48A in thrashing cylinder 16 positioned at its rear end is located at 17 rear end of bearing net Rear and face stalk outlet 18.That is, in the rear end of thrashing cylinder 16, since there is no bearing net 17, so becoming The state of larger space is formd around it.It, should even if threshed straw is wrapped on the threshing tooth 48A of threshing tube rear end as a result, Threshed straw can also deviate under the centrifugal force effect that the rotation with thrashing cylinder 16 generates from the end of threshing tooth 48A. As a result, it is possible to effectively inhibit due to threshed straw in 16 rear end of thrashing cylinder with respect to threshing caused by threshing tooth 48A hook The delay of straw can promote threshed straw from the discharge of stalk outlet 18.

In the following, 7 to Figure 20 ventilation (breather) to illustrate the dividing box of gearbox and be provided thereon fills referring to Fig.1 It sets.

[overall structure of dividing box]

Figure 17 shows an example as the dividing box for being applicable in air-breather of the invention, in full feed type combining Gearbox 101 used in machine.

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

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

Hydrostatic stepless speed change device 105, a dividing box unit in dividing box unit bodies 102,102 to the left and right What the top of body 102 was extended is pivotally supported in portion 121, the input shaft 150 of insert and pump drive shaft one, thus by gearbox 101 are supported on the upper end of gearbox 101.The opposite input belt wheel 151 being located on above-mentioned input shaft 150, with V belt translation side The power for the driving system that formula is opened from the power branch of engine (figure is outer) transmitting and operating system.

Hydrostatic stepless speed change device 105 is inserted in the upper of gearbox 101 with the output shaft 152 of motor drive shaft one Portion, the relatively gear in gearbox 101 input the power crossed by 105 speed change of hydrostatic stepless speed change device.From hydrostatic The power that the transmitting of pressure type stepless speed change device 105 comes is by the secondary gear 113 as gear equipped in gearbox 101 With two shelves gear speed changes of height, later, the axle 106 of left and right is transferred to via 114 branch of side clutch 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 axis 163 and pair of right and left in gearbox 101 Above-mentioned axle 106 becomes across first axle 161 and 162 ground of jackshaft equipped with that can pass through two grades of height of gear shift action progress 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 The major diameter transmission gear G5 of above-mentioned small diameter gear G3 can be engaged in and the small of above-mentioned gear wheel in large diameter G4 can be engaged in Diameter transmission gear G6 integration forms.

By by change gear SG into figure right it is mobile and select small diameter gear G3 and major diameter transmission gear G5 Engagement, and is presented " low speed ", by by change gear SG into figure left movement and make gear wheel in large diameter G4 and minor diameter speed change Gear G6 selection engagement, and " high speed " is presented, by the way that shelves gear SG is moved to the middle position that do not engage with central gear CG, And " neutrality " is presented.

One in the first axle 161 equipped with change gear SG is pivotally supported on position, is equipped with parking brake PB.It should Parking brake PB prevents the rotation of change gear SG and fixes transmission downstream side.

In the left and right of jackshaft 162, chimeric be supported with can be slidably loosened on axis direction and constitutes side clutch 114 Clutch gear G7, meanwhile, loosened on the second axis 163 and chimeric be supported with engage with each clutch gear G7 a pair of and export Gear G8.

By making clutch gear G7 slid inward, engaged with the internal-gear G9 for being formed in the above-mentioned center center gear C G And become " clutch engagement " state, it is slid in and out by making clutch gear G7, then becomes from above-mentioned internal-gear G9 and be detached from " clutch disconnection " state.Always by being externally embedded to the spring being mounted on jackshaft 162 168 to each clutch gear G7 court " clutch engagement " direction sliding force.Clutch gear G7 is configured to the form of big width, in " clutch engagement " and Any one state of " clutch disconnection " is all engaged with output gear G8 always.

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

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

[composition of air-breather]

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

The outer wall 122 of upper side equipped with each dividing box unit bodies 102 in left and right and next door 123, the next door 123 is for benefit With the transmission parts of outer wall 122 and configuration in its vicinity (that is, above-mentioned output shaft 152 and first axle 161, there are also around these axis The gear class etc. of arranging) between the idle space that generates and together constitute with expansion chambers 140 with above-mentioned outer wall 122.

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

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 Sealing element 103 or so on 120 separates, and in the bottom side for the first expansion chambers 140a for being located therein side, is facing involutory surface The small communication port 141 of ventilation is formed on 120 part by notch.It is being set to the opposite side across above-mentioned sealing element 103 In another second expansion chambers 140b of dividing box unit bodies 102, cross is equipped with as the blow vent 142 for allowing to be connected to extraneous gas To discharge cylinder.

Also, on the sealing element 103 between above-mentioned two expansion chambers 140a, 140b, in the outer wall of gearbox 101 120 have been formed about intercommunicating pore 130, which allows from the first expansion chambers being connected to above-mentioned oil storage room 110 140a ventilates to the second side expansion chambers 140b for having above-mentioned blow vent 142.

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

The air-breather 104 constituted in this way is constituted as shown in arrow in Figure 19 to carry out the discharge of air.

That is, making 110 side of oil storage room of lower section in inclination of rising or body due to oil temperature etc. When the pressure of gas increases, gas is press-fit into the first expansion chambers 140a above it by small communication port 141.

At this point, depressurized in the first expansion chambers 140a above with the space bigger than small 141 capacity of communication port, from And oil to a certain degree can be removed from inflow gas and it is made to be back to oil storage room from above-mentioned small communication port 141 110。

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

Though not formed on above-mentioned second expansion chambers 140b for returning the oil generated inside it by gas-liquid separation The access of oil storage room 110 is returned to, but since most oil had previously been removed in the first side expansion chambers 140a, so, It is very small a possibility that a large amount of oil are stored in the second side expansion chambers 140b.

It is being stored with the occasion of a large amount of oil, if above-mentioned blow vent 142 is opened and carries out attraction discharge from outside, or Case decomposition is discharged while carrying out 101 entirety maintenance of gearbox.

On the discharge cylinder for constituting above-mentioned blow vent 142, it is connected with protrusion upwards and bends to the logical of semicircle shape Tracheae 143.Why connect and protrude curved snorkel 143 in this way, be in order in the cleaning of body prevent water externally to The intrusion of 101 side of gearbox.

As described above, above-mentioned air-breather 104 is provided in by engaging multiple dividing box unit bodies by involutory surface 120 102,102 each other and on the gearbox 101 of the partition type of formation, each dividing box unit bodies 102,102 in 120 two sides of involutory surface It is upper to be integrally formed expansion chambers 140(140a, 140b being made of the open cell in 120 side of involutory surface respectively), in the expansion of a side The small communication port 141 being connected to the oil storage room 110 in dividing box is formed in the 140a of room, meanwhile, in the expansion chambers of another party 140b is equipped with blow vent 142.And the sandwiched sealing element 103 on above-mentioned involutory surface 120 and involutory surface 120 punish every two sides Expansion chambers 140a, 140b, meanwhile, on the sealing element 103 formed intercommunicating pore 130, with allow from above-mentioned oil storage room 110 The expansion chambers 140a of connection ventilates towards the side expansion chambers 140b for having above-mentioned blow vent 142.

According to the above configuration, when constituting the gearbox 101 of partition type, only by the integrally formed expansion chambers 140 in inside (140a, 140b) just can constitute air-breather 104 using the sealing element 103 being necessarily mounted at case involutory surface 120.

Therefore, it as air-breather without adding special component, just can constitute with labyrinth structure or expansion chambers Air-breather cost of implementation can reduce with a simple configuration.

In addition, above-mentioned expansion chambers 140(140a, 140b) it is arranged in and is formed in the outer of each 102 upper side of dividing box unit bodies Wall 122 and transmission parts in its vicinity are arranged (that is, above-mentioned output shaft 152 and first axle 161, there are also be arranged around these axis Gear class etc.) between space in.

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

[other embodiments]

Though being illustrated above referring to a preferred embodiment of the attached drawing to sheller unit of the invention, the present invention The composition being not limited to this embodiment.Such as the various changes of act set forth below can be carried out.

(1) it is used as sheller unit, full feed type combine harvester (the whole culm of diagram can also be substituted 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) it is used as thrashing cylinder 16, can not both have the portion of being grilled into 41, whole comb teeth or threshing can also be equipped in the portion that is grilled into 41 Tooth 48 rather than helical tooth 43.

(3) it is used as thrashing cylinder 16, pole steel, square rod steel, square tube can be used in each thrashing cylinder framework (bar-like member) 47 Steel, angle section or slot material etc..

(4) in thrashing cylinder 16, the equipment quantity of thrashing cylinder framework (bar-like member) 47 can be made various changes, such as can Equip eight thrashing cylinder frameworks 47.

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

(6) all threshing tooths 48 that can be equipped bar-like member 47 are welded and fixed on bar-like member 47, or It can be bolted with assembling and disassembling in bar-like member 47.

(7) threshing tooth 48 of all threshing tooths 48 or a part that can be equipped bar-like member 47 is formed to have With the foliaceous for the guide surface that the rotation of thrashing cylinder 16 guides threshing processed material towards threshing direction downstream side, or It is bent to L-shaped, to have function as guide portion, that is, as the rotation of thrashing cylinder 16 is by threshing processed material court It is guided to threshing direction downstream side.

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

(9) configuration space as threshing tooth 48 is able to carry out various changes, such as by thrashing cylinder framework (bar-shaped portion Part) 47 equipment quantity be set as 3 multiple occasion, configuration setting is carried out, so that each threshing tooth 48 is positioned in front-rear direction The upper threshing tooth 48 equipped with adjacent thrashing cylinder framework (bar-like member) 47 is staggered the state of 1/3 spacing, alternatively, that will take off The equipment quantity of grain cylinder framework (bar-like member) 47 is set as the occasion of 4 multiple, carries out configuration setting, so that each threshing tooth 48 is fixed Position is staggered the shape of 1/4 spacing at the threshing tooth 48 equipped in the longitudinal direction with adjacent thrashing cylinder framework (bar-like member) 47 State.Alternatively, for example the configuration space of threshing tooth 48 can also 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 make various changes in terms of its composition, shape or equipment, such as can To be constituted partition member 45 with circular porous plate, alternatively, the multiple sticks for extending to each bar-like member 47 from fulcrum 15 can be used The cricoid connecting component of the extension end side of the extension component and each extension component of connection of shape constitutes partition member 45.Moreover, Partition member 45 can be formed as more by its peripheral side more leaning on the shapes such as coniform in threshing processing rear downstream side, be configured to have Have and guide threshing processed material to the function around thrashing cylinder 16, or can have multiple partition members 45 on thrashing cylinder 16.

(11) it can also be provided with dedicated wind apparatus (such as windmill), to generate from de- for opposing spaced apart component 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 the threshing corresponded in threshing chamber 14 processing object amount and carry out aperture regulation Movable manner, with further increase threshing performance close threshing efficiency.

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

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

(16) it is used as thrashing cylinder 16, can be installed in a detachable manner on the outer peripheral surface of its front end 41 single Helical blade 43, alternatively, three or more spirals can be installed in a detachable manner on the outer peripheral surface of its front end 41 Blade 43.

(17) it is used as thrashing cylinder 16, can be on the outer peripheral surface of its front end 41, spirally arrangement is equipped with removable Multiple bearing metal parts of ground installation helical blade 43.

(18) it is used as helical blade 43, it is more outfit can spirally to be arranged on the outer peripheral surface of thrashing cylinder front end 41 A leaf shape part and constitute.

(19) it as conveying assisted guides 51, had both been configured to that segmentation cannot be controlled, and had also been configured to divide It is cut into three parts or more.

(20) it as conveying assisted guides 51, is configured to be only located at the part in 16 direction of rotation downstream side of thrashing cylinder 51B is able to carry out dismounting.

(21) raw material as conveying assisted guides 51 can use the steel such as the carbon steel other than stainless steel.

(22) it is used as seaming component 50, it can be by the way of it can be mounted on assembling and disassembling in bearing net 17.

(23) in the above-described embodiment, expansion chambers 40 are arranged in and are formed in each 2 upper side of dividing box unit bodies In space between the transmission parts of outer wall and arranging in its vicinity, as long as however, it is not limited to this than oil storage room 10 In the high position of scheduled fuel head, then position appropriate can be selected to be arranged.

(24) the small communication port 41 for being formed in the first expansion chambers 40a is not limited to such open at one end shown in embodiment Notch, be also possible to the mouth of the suitable shapes such as circular hole, position opened up for it, as long as can will be stored in it is indoor oil to The position that the oil storage room 10 of lower section is discharged can freely be set.

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

Claims (29)

1. a kind of sheller unit, have by using fulcrum as fulcrum is driven to rotate and it is real to the harvesting straw for being supplied to threshing chamber Apply the thrashing cylinder of threshing processing, which is characterized in that

Above-mentioned thrashing cylinder includes multiple bar-like members, bearing part and multiple threshing tooths, and above-mentioned multiple bar-like members are along upper The posture for stating fulcrum is equipped with being alternatively arranged in the circumferentially spaced of above-mentioned thrashing cylinder, before fulcrum is arranged in above-mentioned bearing part Afterwards to support above-mentioned bar-like member, above-mentioned multiple threshing tooths equipments are on each above-mentioned bar-like member, with from above-mentioned bar-like member Towards foreign side's posture outstanding of above-mentioned thrashing cylinder, interval is arranged in the longitudinal direction, and is had above-mentioned thrashing cylinder The partition member separated before and after inner space, and there is the undertaking for enabling threshing processed material leak down in the lower section of above-mentioned thrashing cylinder Net,

It is equipped with oscillatory sorting device in the lower section of the bearing net,

In the front lower place of the oscillatory sorting device equipped with the windmill for generating sorting wind, in the screen box of above-mentioned oscillatory sorting device Wind path of the middle formation for flowing the sorting wind from above-mentioned windmill towards above-mentioned partition member,

The sorting wind is flowed out by the wind path from the screen box, enters the inner space by the bearing net, with institute State partition member contact.

2. sheller unit as described in claim 1, wherein above-mentioned partition member is made of plate.

3. sheller unit as claimed in claim 2, wherein above-mentioned partition member equipment is before and after the inner space of thrashing cylinder Middle part.

4. sheller unit as described in claim 1, wherein above-mentioned bar-like member is that circular pole is constituted by section.

5. sheller unit as claimed in claim 2, wherein above-mentioned bar-like member is that circular pole is constituted by section.

6. sheller unit as claimed in claim 3, wherein above-mentioned bar-like member is that circular pole is constituted by section.

7. sheller unit as described in claim 1, wherein above-mentioned threshing tooth by section be it is circular in a manner of formed.

8. sheller unit as claimed in claim 2, wherein above-mentioned threshing tooth by section be it is circular in a manner of formed.

9. sheller unit as claimed in claim 3, wherein above-mentioned threshing tooth by section be it is circular in a manner of formed.

10. sheller unit as claimed in claim 4, wherein above-mentioned threshing tooth by section be it is circular in a manner of formed.

11. sheller unit as claimed in claim 5, wherein above-mentioned threshing tooth by section be it is circular in a manner of formed.

12. sheller unit as claimed in claim 6, wherein above-mentioned threshing tooth by section be it is circular in a manner of formed.

13. the sheller unit as described in any one of claim 1~12, wherein foreign side of the above-mentioned threshing tooth towards thrashing cylinder Above-mentioned bar-like member is protrudingly placed on cantilever-shaped.

14. the sheller unit as described in any one of claim 1~12, wherein above-mentioned bar-like member is configured to change Posture is overturn in the front-back direction with reverse towards and as usual posture.

15. sheller unit as claimed in claim 13, wherein above-mentioned bar-like member is configured to change direction and becomes logical Normal posture overturns posture with reverse in the front-back direction.

16. the sheller unit as described in any one of claim 1~12, wherein positioned at the de- of the front of above-mentioned bar-like member Grain tooth is configured to dismantledly be bolted, and cannot assemble and disassemble ground welding positioned at the threshing tooth of the middle part of above-mentioned bar-like member.

17. sheller unit as claimed in claim 13, wherein the threshing tooth positioned at the front of above-mentioned bar-like member is configured to can It is bolted to assembly and disassembly, ground welding cannot be assembled and disassembled positioned at the threshing tooth of the middle part of above-mentioned bar-like member.

18. the sheller unit as described in any one of claim 1~12, wherein in the front end for being set to above-mentioned thrashing cylinder Be grilled into portion, straw will be gathered in by, which having, is rearward grilled into the helical tooth of conveying.

19. sheller unit as claimed in claim 13, wherein it is being set to being grilled into portion of the front end of above-mentioned thrashing cylinder, Has the helical tooth that harvesting straw is rearward grilled into conveying.

20. the sheller unit as described in any one of claim 1~12 is configured to make the sorting wind direction from above-mentioned windmill The sorting process object that above-mentioned partition member in the thrashing cylinder being located above and the swing sorting mechanism being located behind sub-elect Flowing.

21. sheller unit as claimed in claim 13 is configured to make the sorting wind direction from above-mentioned windmill to be located above The sorting process logistics that above-mentioned partition member in thrashing cylinder and the swing sorting mechanism being located behind sub-elect is dynamic.

22. the sheller unit as described in any one of claim 1~12 has the top for the upper side for covering above-mentioned thrashing cylinder Plate, and above-mentioned top plate has and send dirt valve, it is described to send dirt valve that be transported to threshing with the spinning movement of above-mentioned thrashing cylinder The threshing processed material on the top of room is guided towards rear.

23. sheller unit as claimed in claim 13 has the top plate for the upper side for covering above-mentioned thrashing cylinder, and above-mentioned top Plate, which has, send dirt valve, the threshing on the top for sending dirt valve that will be transported to threshing chamber with the spinning movement of above-mentioned thrashing cylinder Processed material is guided towards rear.

24. sheller unit as claimed in claim 22, wherein

Above-mentioned thrashing cylinder has being grilled into portion and being set to the de- of the above-mentioned rear for being grilled into portion for the front end for being set to above-mentioned thrashing cylinder Grain processing unit,

It is above-mentioned that send dirt valve to be provided with multiple, it is multiple it is above-mentioned send to be located in dirt valve above above-mentioned threshing processing unit send dirt valve to be configured to With stepping up the length for stating the side edge part of left and right of top plate.

25. sheller unit as claimed in claim 23, wherein

Above-mentioned thrashing cylinder has being grilled into portion and being set to the de- of the above-mentioned rear for being grilled into portion for the front end for being set to above-mentioned thrashing cylinder Grain processing unit,

It is above-mentioned that send dirt valve to be provided with multiple, it is multiple it is above-mentioned send to be located in dirt valve above above-mentioned threshing processing unit send dirt valve to be configured to With stepping up the length for stating the side edge part of left and right of top plate.

26. sheller unit as claimed in claim 22, wherein above-mentioned top plate is configured to approximately along the rotation with thrashing cylinder And it is bent by the rotational trajectory that the end of threshing tooth is drawn out.

27. sheller unit as claimed in claim 23, wherein above-mentioned top plate is configured to approximately along the rotation with thrashing cylinder And it is bent by the rotational trajectory that the end of threshing tooth is drawn out.

28. sheller unit as claimed in claim 24, wherein above-mentioned top plate is configured to approximately along the rotation with thrashing cylinder And it is bent by the rotational trajectory that the end of threshing tooth is drawn out.

29. sheller unit as claimed in claim 25, wherein above-mentioned top plate is configured to approximately along the rotation with thrashing cylinder And it is bent by the rotational trajectory that the end of threshing tooth is drawn out.