CN104365292A - Threshing device - Google Patents

Abstract

Complementary metamaterial elements provide an effective permittivity and/or permeability for surface structures and/or waveguide structures. The complementary metamaterial resonant elements may include Babinet complements of split ring resonator (SRR) and electric LC (ELC) metamaterial elements. In some approaches, the complementary metamaterial elements are embedded in the bounding surfaces of planar waveguides, e.g. to implement waveguide based gradient index lenses for beam steering/focusing devices, antenna array feed structures, etc..

Description

Sheller unit

The application is September 28 2007 applying date, the name of application number 200710161330.9 is called the divisional application of the patent application of " sheller unit ".

Technical field

The present invention relates to the sheller unit possessing thrashing cylinder, this thrashing cylinder with fulcrum for fulcrum is driven in rotation and carry out threshing process to the harvesting straw being supplied to threshing chamber.

Background technology

As the thrashing cylinder structure of sheller unit as described above, also exist and on the periphery being formed as cylindric straight drum part, to equip spiral helicine threshing tooth etc. and the structure (such as with reference to patent document 1) that forms thrashing cylinder.

In addition, also exist to be equipped with on the periphery being formed as cylindric cylinder main body and be multiplely bent to the threshing tooth of V-shaped etc. and form the structure (such as with reference to patent document 2) of thrashing cylinder.

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

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

In above-mentioned formation, major part due to threshing chamber is used as the configuration space of thrashing cylinder, and only have the small space remained in around thrashing cylinder to be used as the process space of threshing process, thus, due to high-speed job etc., a large amount of harvesting straws is being supplied to the occasion of threshing chamber as threshing handled thing, there is the danger that its process space is saturated, and when this occurring being saturated, because threshing handled thing is detained in the process space, therefore easily cause threshing handled thing not carry out sufficient threshing process just from the unfavorable condition that undertaking net leaks down, or the load needed for threshing process increases and makes the unfavorable condition etc. of the transmission system equivalent damage of relative thrashing cylinder transmission.

Summary of the invention

The object of the present invention is to provide a kind of sheller unit possessing the thrashing cylinder structure of disposal ability excellence, even if its thrashing cylinder structure also can not cause the load needed for threshing process to increase in the occasion of a large amount of supply threshing handled thing, sufficient threshing process can be implemented to threshing handled thing.

In order to reach above-mentioned purpose, in the present invention, possess by with fulcrum for fulcrum is driven in rotation and the harvesting straw being supplied to threshing chamber is implemented to the thrashing cylinder of threshing process, wherein, above-mentioned thrashing cylinder comprises multiple bar-like member, support unit, with multiple threshing tooth, above-mentioned multiple bar-like member is equipped with the posture along above-mentioned fulcrum in the circumference of above-mentioned thrashing cylinder, with separating predetermined distance arrangement, above-mentioned support unit is arranged on the front and back of above-mentioned fulcrum to support these bar-like members, above-mentioned multiple threshing tooth is equipped on above-mentioned each bar-like member, to separate predetermined distance arrangement in the longitudinal direction from above-mentioned bar-like member towards the posture that the foreign side of above-mentioned thrashing cylinder is outstanding.

According to this structural feature, thrashing cylinder possesses the space be communicated with threshing chamber therein, allows threshing handled thing to enter into this inner space.Thus, when its spinning movement, stir threshing handled thing around it and enter into the threshing handled thing of inner space, by multiple bar-like member and threshing tooth strike is implemented to these threshing handled things on one side or comb into etc. and carry out threshing process.

That is, even if be fed into the occasion of threshing chamber as threshing handled thing a large amount of harvesting straws, also the process space of the inner space of thrashing cylinder as threshing process effectively can be utilized, so, the delay of the threshing handled thing processed in space can be avoided or process the saturated of space.Its result, can avoid resulting from threshing handled thing to be detained or process space is saturated, threshing handled thing do not carry out the generation of the unfavorable condition that abundant threshing process just makes the transmission system of relative thrashing cylinder transmission damage from accepting the unfavorable condition of leaking down and the load increase needed for threshing process on the net etc.

And, by separate predetermined distance arrangement in the circumference of thrashing cylinder being equipped with multiple bar-like member, long stalk can being prevented to be wound up on bar-like member, the delay of the threshing handled thing caused because of this winding can be avoided.And, when thrashing cylinder spinning movement, be not only multiple threshing tooths, and even form multiple bar-like members of the barrel of thrashing cylinder, also all implement to be worked by the threshing processing unit of hitting or combing into the threshing process of realization as to threshing handled thing, thus can improve threshing performance.

On the basis of above-mentioned formation, when equip on above-mentioned thrashing cylinder by separate before and after its inner space partition member time, in the following areas advantageously.

According to this structural feature, by partition member, the grain singulate by the threshing process of thrashing cylinder toe lateral can be suppressed or flow to downstream, threshing process direction the non-threshing straw etc. that the initial stage of threshing process enters into thrashing cylinder inner space, and because this singulate grain or non-threshing straw etc. are directed to around thrashing cylinder with the rotation of thrashing cylinder, so, can stop due to singulate grain or non-threshing straw etc. do not stop by the inner space of thrashing cylinder, the generation of three losses caused from the discharge of threshing process direction end of downstream side with threshing straw.

Therefore; even if in the occasion of a large amount of supply threshing handled thing; also the increase of the load needed for threshing process can not be caused; sufficient threshing process can be implemented to threshing handled thing; and, due to the generation of losing for three times can be stoped, threshing performance or grain organic efficiency can be improved while avoiding increasing the damage of the thrashing cylinder transmission system caused etc. because of load; its result, can provide the thrashing cylinder structure of the sheller unit of durability or disposal ability excellence.

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

According to this structural feature, the threshing handled thing blocked by partition member under from the sorting wind action of windmill by around partition member (around thrashing cylinder) blow open, flow towards downstream, threshing process direction from the surrounding of partition member along with the rotation of thrashing cylinder, thus, threshing handled thing can be avoided to be deposited in the nearby position of partition member.

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

In a preferred embodiment, the upper side of above-mentioned thrashing cylinder is covered by top board, above-mentioned top board is equipped multiplely send dirt valve, and above-mentioned harvesting straw guides to downstream, threshing process direction along with the rotary actuation of above-mentioned thrashing cylinder by the plurality of dirt valve that send.

According to this structural feature, be fed into the rotation of harvesting straw along with thrashing cylinder of threshing chamber, while be subject to a large amount of strike of being implemented by multiple threshing tooth and comb into realized flailing action, while be transferred towards the top of threshing chamber, along with arriving the top of threshing chamber, multiple send the effect of dirt valve under guided by towards downstream, threshing process direction.

That is, thrashing cylinder possesses multiple threshing tooth, can fully obtain by threshing tooth to the strike of threshing handled thing or comb into etc. the suitable flailing action that realizes, and can towards downstream, threshing process direction conveying threshing handled thing.

And, if each threshing tooth is formed as, such as there is adjoint thrashing cylinder rotate and guide portion etc. that threshing handled thing is guided towards downstream, threshing process direction, then can carry out more well carrying towards the threshing handled thing in downstream, threshing process direction, and, only carry out if be formed as threshing handled thing strike or comb into threshing dedicated shape, then can obtain the more suitable flailing action of threshing handled thing.

Therefore, by making to send dirt valve mainly to carry out the conveying of threshing handled thing to downstream, threshing process direction, can provide can not damage threshing handled thing towards downstream, threshing process direction transportation performance, threshing performance can be realized and encourage the threshing structure of full feed type combine harvester of raising of organic efficiency.

The above-mentioned dirt valve that send is formed as, there is the length stepping up the edge, the left and right sides stating top board, now, the length sending dirt valve be equipped on top board can be obtained in long enough ground, thereby, it is possible to carry out more well being guided by the conveying of the threshing handled thing sending dirt valve to implement towards downstream, threshing process direction.Therefore, while the raising of the threshing performance and grain organic efficiency that realize multiple threshing tooth, the raising of threshing handled thing towards the transportation performance in downstream, threshing process direction can be realized.

And, when above-mentioned top board is formed as, roughly along the rotation with above-mentioned thrashing cylinder by the end of above-mentioned threshing tooth the rotational trajectory drawn out bend time, can while the threshing handled thing making to be delivered to the rotation of thrashing cylinder threshing chamber top to be along top board or send dirt valve, the below swimmingly towards downstream, threshing process direction guides.Therefore; while the raising of the threshing performance and grain organic efficiency that realize multiple threshing tooth; the raising of threshing handled thing towards the transportation performance in downstream, threshing process direction can be realized, in addition, the grain damage etc. caused because of the collision with top board can also be avoided.

In a preferred embodiment, at the leading section equipment helical blade of above-mentioned thrashing cylinder, this helical blade is grilled into towards rear along with the rotation of above-mentioned thrashing cylinder and carries and supplied the harvesting straw transported towards this leading section, and above-mentioned helical blade is installed dismantledly.

According to this structural feature, at helical blade owing to contacting and the occasion of noticeable wear with fiercenesses such as gathering in straw for a long time, can only the helical blade of wearing and tearing be replaced.Thus, and do not equip compared with the occasion of helical blade by welding etc. dismantledly at thrashing cylinder leading section, can cut down significantly and change time needed for helical blade and cost, its result, can make the replacing of the helical blade of wearing and tearing easily carry out.And, owing to easily changing the helical blade of wearing and tearing, the helical blade that causes when the wearing and tearing of laissez-faire helical blade thus easily can be avoided the reduction being grilled into conveying effect of harvesting straw, make threshing disposal ability reduce such unfavorable condition with this reduction.

Therefore, by implementing helical blade to be arranged on simple improvement such on thrashing cylinder leading section removably, simply and at an easy rate can carry out the suitable disposal for helical blade wearing and tearing, its result, easily can avoid resulting from the reduction of the threshing disposal ability of helical blade wearing and tearing.

On the basis of this formation, in the below of above-mentioned thrashing cylinder, conveying assisted guides is set, this conveying assisted guides is configured to the leading section covering above-mentioned thrashing cylinder from below, thus accept and supply towards the leading section of above-mentioned thrashing cylinder the harvesting straw transported, and auxiliary by above-mentioned helical blade, harvesting straw is carried out be grilled into conveying, described conveying assisted guides is configured to, its part being at least positioned at the direction of rotation downstream of above-mentioned thrashing cylinder can dismounting, now, at conveying assisted guides owing to contacting and the occasion of noticeable wear with fiercenesses such as gathering in straw for a long time, only the conveying assisted guides of wearing and tearing can be replaced.Thus, with such as by welding etc. by carry assisted guides not to be equipped in dismantledly on supporting frame etc. occasion compared with, can cut down significantly and change the time of conveying needed for assisted guides and cost, its result, can make the replacing of the conveying assisted guides of wearing and tearing easily carry out.And, owing to easily changing the conveying assisted guides of wearing and tearing, thus can easily avoid causing when the wearing and tearing of laissez-faire conveying assisted guides, because the gap formed between helical blade and conveying assisted guides becomes large, helical blade is reduced to the conveying effect that is grilled into of gathering in straw, this reduction adjoint and make threshing disposal ability reduce such unfavorable condition.

In addition, the impact that thrashing cylinder rotates is subject to, partially by concentrating on the thrashing cylinder direction of rotation downstream part in conveying assisted guides along with the rotation of thrashing cylinder by helical blade to be grilled into conveying harvesting straw etc. towards rear.Thus, in conveying assisted guides, be positioned at the part in this thrashing cylinder direction of rotation downstream, fierce with the contact of harvesting straw etc., more easily result from the wearing and tearing of this contact.

Therefore, if consider this aspect and the direction of rotation downstream part of thrashing cylinder in conveying assisted guides be configured to the form that can install and remove, then making to carry the occasion of the direction of rotation downstream part noticeable wear of the thrashing cylinder in assisted guides because contacting with fiercenesses such as gathering in straw for a long time, can only the part of these wearing and tearing be replaced.Thus, compared with changing the occasion of whole conveying assisted guides, the cost needed for replacing can be cut down further.

Therefore, so simple improvement can be installed and removed by implementing that conveying assisted guides is configured to its part being at least positioned at the direction of rotation downstream of thrashing cylinder, simply and at an easy rate can carry out the suitable disposal for the wearing and tearing of conveying assisted guides, its result, easily can avoid resulting from reduction that carry the wearing and tearing of assisted guides, threshing disposal ability.

In a preferred embodiment, undertaking net is equipped with in the mode covering above-mentioned thrashing cylinder from below, top board is equipped with in the mode covering above-mentioned thrashing cylinder from top, between above-mentioned undertaking net and above-mentioned top board, be equipped with seaming component dismantledly, this seaming component is formed as having the guide surface be concatenated by the inner surface accepting net and top board.

According to this structural feature, contact and the occasion of noticeable wear with fiercenesses such as gathering in straw due to long-term at the guide surface of seaming component, can only the seaming component of wearing and tearing be replaced.Thus, with by welding etc. accept net or top board are not equipped dismantledly seaming component occasion compared with, can cut down the time needed for seaming component and cost of changing wearing and tearing significantly, its result, can make the replacing of the seaming component of wearing and tearing easily carry out.And, owing to easily changing the seaming component of wearing and tearing, thus can easily avoid causing when the wearing and tearing of laissez-faire seaming component, to make harvesting straw etc. can not across the undertaking net of thrashing cylinder and top board smooth outflow thus threshing disposal ability reduces such unfavorable condition due to the guide surface of seaming component cannot be utilized to be concatenated by the inner surface of the inner surface and top board of accepting net.

Therefore, simple improvement such between net and top board is accepted by implementing seaming component to be equipped in dismantledly, simply and at an easy rate can carry out the suitable disposal for seaming component wearing and tearing, its result, easily can avoid resulting from reduction that seaming component weares and teares, threshing disposal ability.

About other structural feature and the advantageous effects that played by this structural feature, by just becoming clear with reference to reading following explanation while accompanying drawing.

Accompanying drawing explanation

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

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

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

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

Fig. 5 is the partial vertical sectional front view of the formation of the front and back pars intermedia representing sheller unit.

Fig. 6 is the vertical view of the major part of the formation representing thrashing cylinder and conveying assisted guides.

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

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

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

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

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

Figure 12 represents the cross-sectional plan view sending the length of dirt valve and the major part of configuration.

Figure 13 is the vertical view of the major part of the formation representing conveying assisted guides.

Figure 14 is the longitudinal cross-sectional side view of the major part of the formation representing conveying assisted guides.

Figure 15 is the stereogram of the major part representing the formation accepting net.

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

Figure 17 is the vertical profile front view of gearbox.

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

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

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

Embodiment

Illustrate the overall side as the full feed type combine harvester (whole culm discharging type combine-harvester) of harvesting object such as rice or wheat in Fig. 1.Its overall end face has been shown in Fig. 2.As shown in these figures, full feed type combine harvester is equipped with engine 2 and speed change gear (not shown) in the right front portion of the body framework 1 formed by square tube steel etc.In the bottom of body framework 1, be equipped with by the power-actuated pair of right and left crawler type running device 3 from engine 2 transmitted through speed change gear etc.In the front portion of body framework 1, liftable be swingingly connected with harvesting as harvesting object plant vertical straw and the harvesting conveying plant 4 it rearward carried.In the left side of body framework 1, be equipped with sheller unit 5, this sheller unit 5 implements threshing process to the harvesting straw from harvesting conveying plant 4, meanwhile, also carries out sorting process to the handled thing obtained by this threshing process.Be equipped with sack-filling device 6 at the right-hand part of body framework 1, the grain from sheller unit 5 stored by this sack-filling device 6, and can by the grain bagging of this storage.Be formed in the right front portion of body framework 1 and take Drive Section 7.

The crawler type running device 3 of left and right is so formed, namely, based on the shuttle-type neutral reply type control stick 8 of the cross swinging operation in the lateral direction of taking Drive Section 7 and possessing, steering (not shown) action, thus, to switch and the craspedodrome state that driven by constant speed of the crawler type running device 3 showing left and right and their differential steering states.

On the end, the left and right sides of the front end of harvesting conveying plant 4, be equipped with and travel along with body and be divided into planting vertical straw comb the nearside divider 9 of planting vertical straw of planting beyond vertical straw and harvesting object gathering in object.In the front upper of harvesting conveying plant 4, be equipped with the rotating drum 10 that the sharp side of the fringe of the planting vertical straw nearside divider 9 by left and right being combed the harvesting object branched away is grilled into towards rear.The shut-off mechanism 11 of planting the strain root side of vertical straw cutting off harvesting object is equipped with in the bottom of harvesting conveying plant 4.Be equipped with auger conveyor 12 at the rear of shut-off mechanism 11, this auger conveyor 12 will plant the specified location that vertical straw (harvesting straw) deflection collects left and right directions after being cut off by shut-off mechanism 11, and, send from this specified location towards rear.On the specified location of auger conveyor 12, be equipped with by the feeder 13 that the harvesting sent from this specified location straw is formed towards the conveyer that sheller unit 5 supplies conveying.

The action of the lift cylinders (not shown) of fluid pressure type of harvesting conveying plant 4 by setting up across body framework 1 and feeder 13, with the tie point of body framework 1 and feeder 13 for fulcrum carries out lifting and swinging.The action of lift cylinders, is controlled by the operating state based on control stick 8 swinging operation switching control valve (not shown) in front-rear direction, and this control valve controls the flowing of working oil OQ t cylinder.That is, by swinging operation control stick 8 in front-rear direction, harvesting conveying plant 4 can be made to be elevated, can carry out changing the harvesting height adjustment etc. that the height and position of vertical straw planted relatively by shut-off mechanism 11.

As shown in Figures 3 to 5, threshing chamber 14 is formed with on the top of sheller unit 5.In threshing chamber 14, to be equipped with the front and back of the throughput direction erection along harvesting straw to fulcrum 15 as fulcrum carries out the thrashing cylinder 16 that rotates.Be equipped with in the below of thrashing cylinder 16 and accept net 17, this undertaking net 17 is formed as covering the lower side of thrashing cylinder 16 from below, the shape of front viewing in U-shaped, accept with the rotation of thrashing cylinder 16 by the harvesting straw of threshing process, and the handled thing obtained by threshing process is leaked down.In sheller unit 5, at the rear of the undertaking net 17 of its threshing process direction end of downstream side, be formed with the row's stalk mouth 18 for being discharged to by the straw after threshing process outside machine.Accept the below of net 17, be equipped with the swing sorting mechanism 19 implementing to sieve sorting process to the handled thing leaked down from undertaking net 17.Swinging the front lower place of sorting mechanism 19, being equipped with towards the windmill 20 from accepting net 17 handled thing leaking down and the handled thing supply sorting wind sieved in sorting process, these handled things being implemented to pneumatic separating process.At the rear of windmill 20, be formed with the recoverer 21 that the handled thing leaked down from the toe lateral swinging sorting mechanism 19 is reclaimed.At the rear of a recoverer 21, be formed with the secondary recovery portion 22 that the handled thing leaked down from the rear portion side swinging sorting mechanism 19 is reclaimed.Swinging the rear of sorting mechanism 19, being formed the handled thing that is transported to the rearward end swinging sorting mechanism 19 is not discharged to the outlet 23 machine from swinging that sorting mechanism 19 leaks down.Above thrashing cylinder 16, can be opened and closed to be equipped with the top board 24 of the upper side covering thrashing cylinder 16 from top, the harvesting straw rotation along with thrashing cylinder 16 transported by the top towards thrashing cylinder 16 and threshing handled thing guide towards undertaking net 17.

Threshing chamber 14 is formed by zonings such as covering the undertaking net 17 of thrashing cylinder 16 and top board 24.In the front end lower portion of threshing chamber 14, be formed with the overall supply port 25 as handled thing supply of harvesting straw will transported by feeder 13.

The fulcrum 15 of thrashing cylinder 16 can set up across the antetheca 26 of sheller unit 5 and rear wall 27 rotatably.And; thrashing cylinder 16 utilizes the power from engine 2 transmitted via windmill 20 grade; with fulcrum 15, to be fulcrum by the right watched to front drive rotates; by this rotary actuation; threshing process is implemented to the harvesting straw being supplied to threshing chamber 14; promote the singulate of grain, the body rear of this harvesting straw towards downstream, threshing process direction is carried meanwhile.

Accepting net 17 is be formed as cancellate spill to accept net, catches the harvesting straw being supplied to threshing chamber 14, the threshing process that auxiliary thrashing cylinder 16 carries out harvesting straw.Specifically; accept net 17 while catch with the spinning movement of thrashing cylinder 16 by the harvesting straw of threshing process; while the handled thing swing sorting mechanism 19 downward such as the grain making the singulate grain that obtained by this threshing process or band branch stalk or the stalk bits that produced by threshing process is leaked down; on the other hand, prevent threshing straw etc. from leaking down towards swing sorting mechanism 19.

Swing sorting mechanism 19 possess driven by the driving mechanism 28 of cam-type and swing to front-rear direction overlook viewing in the screen box 29 of frame-shaped.The grain pan 30 of ragging, primary dcreening operation 31, strawwalker 32 be equipped with on the top of screen box 29, from the front of screen box 29, in order.Grain pan 33 and the grain sieve 34 of refining-sorting be equipped with in the bottom of screen box 29, from the front of screen box 29, in order.Swinging the top of sorting mechanism 19, to catch under the state mixed at singulate straw or stalk bits etc. from the sorting process thing accepted net 17 and leak down by the grain pan 30 on top or primary dcreening operation 31 or strawwalker 32, carry out the ragging process sieving sorting.Swinging the bottom of sorting mechanism 19, the sorting process thing leaked down from primary dcreening operation 31 under catching by the grain pan 33 of bottom or grain sieve 34 state that the grain etc. that obstructs singulate straw or band branch mixes, carries out the refining-sorting process sieving sorting.Its result, becomes the singulate grain as a thing, the impurity such as grain or stalk bits that the band branch as secondary thing obstructs, the dust such as stalk bits as three things using the sorting of sorting process thing.

The power from engine 2 that windmill 20 utilizes the transmission mechanism 35 via belt to transmit, with its fulcrum 20A for fulcrum is driven in rotation, thus generates sorting wind.Sorting wind by three wind path R1 ~ R3 towards from accepting the sorting process thing that leaks down of net 17 or by the supply such as sorting process thing swinging sorting mechanism 19 sorting, blow from sorting process thing thus and separate the little stalk bits etc. of proportion, the outlet 23 towards downstream, threshing process direction is carried.

The singulate grain leaked down from the grain sieve 34 swinging sorting mechanism 19, according to the state being eliminated the dust such as straw bits by the sorting wind from windmill 20, reclaims as a thing by a recoverer 21.In the bottom of a recoverer 21, left and right Xiang Di is equipped with and utilizes the power from engine 2 via transmission such as windmill 20 grade to obtain the conveyor screw 36 driven.The thing be recovered to by recoverer 21 is raised square auger body 37(with reference to Fig. 2 towards being connected with at its right-hand member by conveyor screw 36) conveying.

Secondary recovery portion 22 is using from swinging that the grain sieve 34 of sorting mechanism 19 leaks down, the impurity such as the grain of band branch stalk that flows down from the rear end of grain sieve 34 or stalk bits and the impurity such as the grain of band branch stalk leaked down from the strawwalker 32 swinging sorting mechanism 19 or stalk bits do not reclaim as secondary thing.In the bottom in secondary recovery portion 22, left and right Xiang Di is equipped with and utilizes the power from engine 2 via transmission such as windmill 20 grade to obtain the secondary spiral body 38 driven.Secondary spiral body 38 by the secondary thing be recovered to by secondary recovery portion 22 towards the secondary foldback mechanism 39(be connected with at its right-hand member with reference to Fig. 2) conveying.

Raise square auger body 37 to raise the thing transported by conveyor screw 36 and send, and the grain box 40(that the top being supplied to sack-filling device 6 possesses is with reference to Fig. 1 and Fig. 2).Secondary foldback mechanism 39 possesses the reprocessing portion (not shown) the secondary thing transported by secondary spiral body 38 being carried out again to threshing process, raises to send to be returned to swing sorting mechanism 19(with reference to Fig. 2 and Fig. 3 by the secondary thing after this reprocessing portion threshing process).

Outlet 23 is by the threshing straw do not flowed down from accepting net 17 to leak down from row's stalk mouth 18 or be sorted by sieving sorting process and pneumatic separating process the stalk bits etc. being transported to the rear swinging sorting mechanism 19 and be discharged into machine.

If Fig. 3 is to as shown in Figure 9, the portion that is grilled into 41 that thrashing cylinder 16 possesses the circular cone shape forming its leading section and the threshing handling part 42 be connected with this rear end being grilled into portion 41.The outer peripheral face being grilled into portion 41 is equipped with two helical blades 43, and these two helical blades 43 are grilled into conveying with the rotation of thrashing cylinder 16 towards rearward threshing handling part 42 by supplying by feeder 13 the harvesting straw being delivered to supply port 25.

Threshing handling part 42 is made up of such as lower member etc.: the first plate (example of support unit) 44, and it is integrally equipped in the front portion of fulcrum 15; Second plate (example of partition member) 45, it is equipped in the front and back pars intermedia of fulcrum 15 integratedly; 3rd plate (example of support unit) 46, it is integrally equipped in the rearward end of fulcrum 15; The six roots of sensation thrashing cylinder framework (example of bar-like member) 47 be made up of pipe steel etc., they are separate certain intervals arrangement in the circumference of thrashing cylinder 16 along the front and back of fulcrum 15 to posture to be supported; And multiple threshing tooth 48, they to be equipped on each thrashing cylinder framework 47 from thrashing cylinder framework 47 towards the posture that the foreign side of thrashing cylinder 16 is outstanding with separating predetermined distance arrangement in the longitudinal direction.

That is, on thrashing cylinder 16, according to the mode separating predetermined distance arrangement in the circumference and fore-and-aft direction of threshing handling part 42, arrangement is equipped with towards the outstanding multiple threshing tooths 48 of the foreign side of thrashing cylinder 16.In addition, as thrashing cylinder 16, the internal space S of threshing handling part 42 is communicated with threshing chamber 14, allows that handled thing enters into its internal space S.Its result, when thrashing cylinder 16 spinning movement, stirs handled thing around it and enters into the handled thing of internal space S, on one side to the enforcement of these handled things by the strike of thrashing cylinder framework 47 and threshing tooth 48 or comb into etc. and the threshing process carried out.

And, because the internal space S of threshing handling part 42 is communicated with threshing chamber 14, even if a large amount of harvesting straws to be supplied to the occasion of threshing chamber 14 as handled thing, also the process space of the internal space S of threshing handling part 42 as threshing process effectively can utilized.Thereby, it is possible to avoid the delay of the handled thing processed in space and process the saturated of space.Its result, can avoid resulting from handled thing to be detained or process space is saturated, handled thing do not carry out abundant threshing process just from the generation of the undesirable conditions such as the transmission system breakage that concave shaped portion 3 is leaked down or load needed for threshing process increases and makes relative thrashing cylinder 16 transmit.

And, when the spinning movement of thrashing cylinder 16, not only multiple threshing tooth 48, even the six roots of sensation thrashing cylinder framework 47 forming the threshing handling part 42 of thrashing cylinder 16 also works as the threshing processing unit acting on handled thing, thus, the raising of threshing performance and threshing efficiency can be realized.

And, due to a large amount of grain be subject to thrashing cylinder 16 toe lateral threshing process and singulate after from undertaking net 17 leak down, the handled thing amount of the front and back pars intermedia of thrashing cylinder 16 is reduced, pars intermedia before and after this, the handled thing in the internal space S of thrashing cylinder 16 is stoped by the second plate 45 separated before and after the internal space S of thrashing cylinder 16 to flow towards downstream, threshing process direction, the rotation of companion thrashing cylinder 16 by handled thing guide threshing cylinder 16 around, thus facilitate by threshing tooth 48 grade to the strike of handled thing or comb into etc. and the threshing carried out, and singulate grain is from accepting leaking down of net 17.Thus; the generation of losing for three times can be stoped, these three times losses result from singulate grain contained in handled thing or non-threshing straw etc. do not stop by the internal space S of thrashing cylinder 16, together discharged by from the row's stalk mouth 18 being formed at threshing process direction end of downstream side in company with threshing straw.

And then, when the spinning movement of thrashing cylinder 16, attract from supply port 25 the extraneous gas of coming with the rotation of helical blade 43 together with the harvesting straw being grilled into conveying under the effect being grilled into portion 41, flow swimmingly around thrashing cylinder 16 or in the internal space S of threshing handling part 42.Thereby, it is possible to prevent the stalk bits etc. produced by threshing process from flowing out from supply port 25 to feeder 13, and the conveying of handled thing towards downstream, threshing process direction can be carried out more rapidly.

In addition, from the inside of feeder 13 of extraneous gas by being connected with supply port 25 that supply port 25 attracts, and, this feeder 13 by be formed in be equipped with shut-off mechanism 11 with on the harvesting recoverer of the harvesting conveying plant 4 of auger conveyor 12 grade recovery straw export delivery outlet (not shown) be communicated with supply port 25, thus, when thrashing cylinder 16 spinning movement, under rotating at helical blade 43 sucking action produced, the dust such as the stalk bits produced by harvesting process or recycling in harvesting recoverer also in company with extraneous gas together, the surrounding of thrashing cylinder 16 or the internal space S of threshing handling part 42 is flow into via the inner space of feeder 13 and supply port 25 from the delivery outlet of harvesting recoverer.Its result, the attachment that can suppress to gather in stalk bits in recoverer etc. is piled up or flies upward, and can suppress because of this attachment that to pile up the conveying of the harvesting straw caused bad and fly upward the reduction etc. of operating environment and the visibility caused because of this.

Each plate 44 ~ 46 is in the circle centered by fulcrum 15, and on the distance equidistant position of fulcrum 15 of its outer circumferential side, bolt is connected with thrashing cylinder framework 47.That is, at the outer circumferential side of each plate 44 ~ 46, be equipped with six roots of sensation thrashing cylinder framework 47 according to the state separating certain intervals arrangement in its circumferential direction, the cylinder diameter of thrashing cylinder 16 increases.Thereby, it is possible to prevent the winding gathering in the relative thrashing cylinder 16 of straw.

Each thrashing cylinder framework 47 bolt is connected on each plate 44 ~ 46, can change towards and become the contrary upset posture of the fore-and-aft direction of its fore-and-aft direction usual posture consistent with the fore-and-aft direction of thrashing cylinder 16 and its fore-and-aft direction and thrashing cylinder 16, and adjacent thrashing cylinder 47 front and back are each other towards the opposite.

On each thrashing cylinder framework 47, be equipped with multiple installing hole 47A, 47B that threshing tooth 48 can be installed, they on its fore-and-aft direction with the state that a determining deviation P arranges, and in the distance L1 at center of installing hole 47A from the front end of thrashing cylinder framework 47 to forefront and the distance L2 at the center of the installing hole 47A from the rear end of thrashing cylinder framework 47 to rearmost have the state of the difference of half pitch (=1/2P).

Further, each thrashing cylinder framework 47 is bearing on each plate 44 ~ 46 with the stateful connection that adjacent framework front and back are each other towards the opposite.Thus, while adopting the framework of identical formation as six thrashing cylinder frameworks 47, can locate in the state of fore-and-aft direction dislocation half pitch the threshing tooth 48 that these thrashing cylinder frameworks 47 are equipped with the threshing tooth 48 of adjacent thrashing cylinder framework 47.Its result, need not reduce the interval of adjacent threshing tooth 48, just can reduce the strike interval of threshing tooth 48 pairs of handled things.

That is, cost cutting is achieved by each thrashing cylinder framework 47 is set to identical formation, and, effectively prevent the handled thing blocking of the winding of less more incidental, the relative threshing tooth 48 of the straw resulted from handled thing in the interval of adjacent threshing tooth 48, meanwhile, threshing performance can be improved by increasing the cycle of threshing tooth 48 pairs of handled things.

And, usual posture and upset posture can will be become towards change by being equipped to by each thrashing cylinder framework 47, more significant occasion is become being arranged in the wearing and tearing because of the threshing tooth 48 of handled thing amount threshing process direction upstream side many and more easy to wear in Long-Time Service process, by the state that the threshing tooth 48 of the threshing tooth 48 and downstream, nonabradable threshing process direction that change over threshing process direction upstream side more easy to wear towards the position of, multiple threshing tooths 48 that can be possessed by each thrashing cylinder framework 47 at one stroke that change each thrashing cylinder framework 47 exchanges.Thereby, it is possible to the threshing tooth 48 of the threshing tooth 48 in the few downstream, threshing process direction of wearing and tearing as the many threshing process direction upstream side of handled thing amount is effectively utilized.

Four (each two of front and back) installing hole 47A in the rear and front end portion of each thrashing cylinder framework 47 that is positioned in multiple installing hole 47A, 47B are formed as the diameter less than the installing hole 47B being positioned at pars intermedia.

The threshing tooth 48A utilizing the installing hole 47A of minor diameter to install in each threshing tooth 48 is made up of the pole steel with the level possessing the minor diameter 48a being inserted through installing hole 47A, be centrally located at by the mode on the line at the center of fulcrum 15 and the center of thrashing cylinder framework 47 with it, nut is fixed on thrashing cylinder framework 47 dismantledly.

The threshing tooth 48B utilizing the installing hole 47B of pars intermedia to install is made up of wheel chair access pole steel, and be centrally located at by the mode on the line at the center of fulcrum 15 and the center of thrashing cylinder framework 47 with it, welding is not dismantledly on thrashing cylinder framework 47.

That is, the each threshing tooth 48A being positioned at the rear and front end portion of threshing handling part 42 can install and remove, so, even if these threshing tooths 48A have passed through thrashing cylinder framework 47 towards changing the still occasion of noticeable wear under Long-Time Service, new threshing tooth 48A can be replaced by simply.

In addition, in the downstream, threshing process direction that threshing straw amount is many, as shown in Figure 10, the words be equipped with if carry out with the state pulling the threshing tooth 48A being positioned at thrashing cylinder 16 rearward end, then the interval of the threshing tooth 48A of thrashing cylinder rearward end becomes large, effectively can suppress to result from the delay of the threshing straw of the hook of the threshing tooth 48A of relative thrashing cylinder rearward end.Its result, can promote that threshing straw is from the discharge of row's stalk mouth 18.

As Fig. 3 ~ 5, Figure 11 (a) and (b) and as shown in Figure 12, top board 24 be integrally equipped with the bend 24A roughly bent along the rotational trajectory K of threshing tooth end, the rear and front end being positioned at this bend 24A semicircle shape longitudinal wall part 24B and be positioned at the side edge part 24C etc. of a linearity of bend about 24A.Top board 24 is configured to, and the multiple hinge 24D possessed with the side edge part 24C on the left of it, for fulcrum, can carry out opening and closing swinging operation between the closed position of upper side and the open position of the upper side of unlimited thrashing cylinder 16 of top covering thrashing cylinder 16.On the side edge part 24C on right side, be provided with the multiple bolt 24E fixing top board 24 with closed condition.

Bend 24A is bent to form, so that the handled thing transported towards thrashing cylinder 16 top the rotation with thrashing cylinder 16 swimmingly by its inner surface undertaking net 17 downward guides.On the inner surface of bend 24A, according to the state separating predetermined distance arrangement in the longitudinal direction dismantledly fixed equipment and multiplely send dirt valve 49, this send dirt valve 49 to be guided towards downstream, threshing process direction by the handled thing being transported to the top of threshing chamber 14 with the spinning movement of thrashing cylinder 16.Multiplely send the dirt valve 49A that send of forefront in dirt valve 49 to be formed as the arc-shaped of the longitudinal wall part 24B to the side edge part 24C in left side from front side, other the dirt valve 49B that send is formed as the arc-shaped of the side edge part 24C across left and right.

That is, by being equipped with bend 24A on top board 24, can while the handled thing that makes the rotation with thrashing cylinder 16 take off by multiple threshing tooths 48 etc. the top being delivered to threshing chamber 14 carry in bend 24A inner surface or send dirt valve 49, guide swimmingly towards the undertaking net 17 below downstream, threshing process direction.In addition, be formed as the arc-shaped of long size arriving the side edge part 24C in left side or the side edge part 24C of left and right by dirt valve 49 respectively will be sent, effectively can improve and respectively send dirt valve 49A to rotating with thrashing cylinder 16 and be transported to the guiding function of the handled thing on threshing chamber 14 top.Thus, each threshing tooth 48 can not only be formed as possessing the shape to the effect that handled thing is carried, and can be formed as being applicable to carrying out to the strike of handled thing or comb into threshing dedicated shape, simultaneously, can well towards downstream, threshing process direction conveying also boot process thing, its result, can realize the raising of threshing performance to handled thing and transportation performance.

On the side edge part 24C of left and right, bolt is connected with the seaming component 50 of steel plate dismantledly, and this seaming component 50 is bent to the guide surface 50a of the inner surface with series winding bend 24A and the inner surface accepting net 17.Like this, owing to forming dismantledly with the seaming component 50 of the contact fierceness of handled thing at the seam crossing accepted between net 17 and top board 24, so, in the occasion of this seaming component 50 noticeable wear because of the contact with handled thing, can only change seaming component 50 simply.That is, can not cause such as will replacing the unfavorable of the such trouble of whole top board 24 and economic aspect together with the seaming component 50 of wearing and tearing as by this seaming component 50 not occasion of welding dismantledly on top board 24, suitably can carry out the disposal of the wearing and tearing for seaming component 50.

In addition, between the end and the lower edge respectively sending dirt valve 49 of each threshing tooth 48, be set with little gap to make to send the guiding of dirt valve 49 pairs of handled things good.And, between the end and the inner surface accepting net 17 of each threshing tooth 48, in order to promote that singulate grain leaks down from undertaking net 17, be set with than the end being set in each threshing tooth 48 and the gap respectively sending the gap between the lower edge of dirt valve 49 large.

As Fig. 3, Fig. 4, Fig. 6 ~ 8 and as shown in Figure 10, in thrashing cylinder 16, on the outer peripheral face that it is grilled into portion 41, spirally welding has two support plate 41A.Further, on the back side of these support plates 41A, bolt is connected with corresponding helical blade 43 dismantledly, and the outer edge side presenting them also will side is outstanding outward state than the outer rim of corresponding support plate 41A.

That is, in this thrashing cylinder 16, supply by feeder 13 the harvesting straw being delivered to supply port 25 and be grilled into conveying along with the rotation of thrashing cylinder by towards rear, thus two helical blades 43 contacts with harvesting straw fierceness and the easy wearing and tearing resulting from this contact, these two helical blades 43 are equipped in the portion that is grilled into 41 of thrashing cylinder 16 dismantledly, thus, making the occasion of each helical blade 43 noticeable wear through Long-Time Service, can only change helical blade 43 simply.Its result, can not cause such as by this helical blade 43 not welding dismantledly to be grilled into the occasion in portion 41 and will to replace the unfavorable of the such trouble in the portion of being grilled into 41 or economic aspect together with the helical blade 43 of wearing and tearing, suitably can carry out the disposal of the wearing and tearing for helical blade 43.

In addition, each support plate 41A utilizes the front surface across them to be strengthened with multiple ribs 41B of the outer peripheral face ground welding being grilled into portion 41.

As Fig. 3, Fig. 4, Fig. 6, Figure 13 and as shown in Figure 14, in sheller unit 5, conveying assisted guides 51 is equipped with between its antetheca 26 and undertaking net 17, this conveying assisted guides 51 is accepted and is supplied by feeder 13 the harvesting straw being delivered to supply port 25, and that assists the harvesting straw undertaken by two helical blades 43 is grilled into conveying.Conveying assisted guides 51 by cover from below be grilled into the lower side in portion 41, bolt connect into and face viewing time pair of right and left guide member 51A, 51B in roughly U-shaped form.Guide member 51A, 51B of left and right are consisted of following manner, namely, to on the first plate 51a of the stainless steel on the pair of right and left supporting frame 52 on the top of the antetheca 26 and sheller unit 5 that are provided to sheller unit 5 before and after bolt is dismantledly connected to, welding is formed from the antetheca 26 of sheller unit 5 to the second plate 51b of stainless steel of guide surface accepting net 17.

That is, in this sheller unit 5, owing to assisting the conveying that is grilled into of the harvesting straw undertaken by two helical blades 43, conveying assisted guides 51 contacts with harvesting straw fierceness, and then the wearing and tearing easily occurred because this contact produces, conveying assisted guides 51 is equipped to the form that can install and remove, and, by consist of can left and right segmentation left and right two segmenting structure, namely, the guide member 51B on the right side in the guide member 51A being positioned at the left side of the direction of rotation upstream side of thrashing cylinder 16 and the direction of rotation downstream being positioned at thrashing cylinder 16, thus, the occasion of carrying the overall noticeable wear of assisted guides 51 is being made because of Long-Time Service, only can change conveying assisted guides 53 simply.In addition, making the occasion of left and right any one guide member 51A, 51B noticeable wear carried in assisted guides 51 because of Long-Time Service, can only wearing and tearing significant guide member 51A, 51B replaced.Its result, even if can not cause, such as conveying assisted guides 51 also being changed the unfavorable of the such trouble of whole conveying assisted guides 51 or economic aspect when welding dismantledly will not replace and accept net 17 or left and right supporting frame 52 or any side, the left and right noticeable wear as the such conveying assisted guides 51 of the inseparable occasion ceding territory to form conveying assisted guides 51 together with conveying assisted guides 51 the occasion on the supporting frame 52 etc. accepting net 17 and left and right, suitably can carrying out the disposal for the wearing and tearing of carrying assisted guides 51.

And, because conveying assisted guides 51 is high-strength stainless steels that corrosion resistance is strong, so can reduce because of the replacing frequency caused that weares and teares.

As Fig. 3, Fig. 5, Fig. 6 and as shown in Figure 15, accept net 17 and accept net means 53 by four that are formed as same shape and form, bolt is connected to the supporting frame 52 of left and right dismantledly.In each undertaking net means 53, the base frame 53A being equipped with skeleton construction orthogonal.In the frame of base frame 53A, according to the state separating certain intervals in the circumference of thrashing cylinder 16, front and back are equipped with to ground arrangement the multiple taeniae 53B be made up of banded steel plate.And according to as state thrashing cylinder 16 axial fore-and-aft directions separating certain intervals, left and right is equipped with to ground arrangement the multiple first horizontal stripe 53C be made up of the banded steel plate being bent to arc-shaped.And then between the first adjacent horizontal stripe 53C, according to the state separating certain intervals in the longitudinal direction, left and right is equipped with to ground arrangement the multiple second horizontal stripe 53D be made up of the piano wire rod being bent to arc-shaped.Further, set the configuration space of each bar 53B ~ 53D, the mesh be formed in the frame of base frame 53A is presented along the rectangle of growing crosswise longer than the length on direction along the longitudinal direction of the length on the direction of thrashing cylinder 16 circumference.

That is; consider driven at thrashing cylinder 16 and rotate threshing process time, by the singulate grain etc. of the threshing process gained for harvesting straw with the rotation of thrashing cylinder 16 this situation that flows in its direction of rotation, be configured to its mesh in the rectangle of growing crosswise longer in the direction of rotation of thrashing cylinder 16 by accepting net 17.Thus, be configured to its mesh be presented on compared with the occasion of the rectangle of lengthwise longer on the threshing process direction (fore-and-aft direction) of thrashing cylinder 16 with by accepting net 17, the easier toe lateral from accepting net 17 such as singulate grain is leaked down.Its result, can suppress effectively because singulate grain is from accepting the leaking down to be suppressed of toe lateral of net 17 and the generation of decortication grain that causes.And, by each undertaking net means 53 is formed as identical shape, the yielding ability of undertaking net 17 or assembleability can be made to improve.

As Fig. 3 and as shown in Figure 16, the primary dcreening operation 31 of ragging is made up of single sorting plate 54, and this sorting plate 54 is connected on screen box 29 with the inclination attitude bolt risen backward being more located top by its downstream, sorting direction.

Sorting plate 54 toe lateral (relatively whole sorting plate 54, front side about 1/3 region), overlook viewing rectangular multiple leak down hole 54A arrangement be formed as rank rear leak down hole 54A prostatitis to leak down between the 54A of hole staggered.Sorting plate 54 rear portion side (relatively whole sorting plate 54, rear side about 2/3 region), have point chip select 54a, 54b overlook viewing rectangular multiple leak down hole 54B, 54C arrangement be formed as rank rear leak down hole 54B, 54C prostatitis to leak down between hole 54B, 54C staggered.

Point chip select 54a being positioned at the left and right center side of sorting plate 54 in each point of chip select 54a, 54b, is stamped and is formed as squamous more narrower by its downstream, sorting direction width and more by the top.And be positioned at point chip select 54b at the two ends, left and right of sorting plate 54, being stamped is formed as the size rectangle shorter than point chip select 54a of left and right center side, more leans on its downstream, sorting direction more by the top.

That is, owing to being formed the primary dcreening operation 31 of ragging with single sorting plate 54, form compared with the occasion of primary dcreening operation 31 etc. with such as the multiple sieve lips be made up of banded steel plate (チ ャ Off シ ー プ) being arranged the form that is equipped to and separates certain intervals in the longitudinal direction, the reduction of simplification and the cost formed can be realized.

And; form by the toe lateral of the primary dcreening operation 31 at the high sorting process thing of the singulate grain containing ratio of supply the hole 54A that leaks down not possessing point chip select 54a, 54b, the singulate grain change of leaking down from the toe lateral of primary dcreening operation 31 grain pan 33 downwards or grain sieve 34 is many.Its result, can improve the rate of recovery of the singulate grain of the recoverer 21 be positioned at below grain pan 33 or grain sieve 34.

And, leak down hole 54B, 54C of being formed and possessing point chip select 54a, 54b is arranged in a staggered pattern all around by the rear portion side at primary dcreening operation 31, sieving in sorting process, the sorting process thing on primary dcreening operation 31 can not be biased in the lateral direction but be distributed uniformly.Thereby, it is possible to promote singulate grain leaking down from respectively leak down hole 54B, 54C.

And then by with the inclination attitude raised backward equipment primary dcreening operation 31, with equip the occasion of primary dcreening operation 31 with flat-hand position compared with, sieving in sorting process, the power that the top that sorting process thing is surveyed towards upstream, sorting process direction by primary dcreening operation 31 is released becomes large.Thus; when sieving sorting process, sorting process thing is inhibited towards the conveying in downstream, sorting direction, simultaneously; moving up and down of sorting process thing becomes fierce; more effectively can carry out the difference in specific gravity sorting of sorting process thing, thus, facilitate heavy grain leaking down from respectively leak down hole 54B, 54C; and; can effectively suppress singulate grain to be discharged to the generation of three losses machine from outlet 23, its result, can realize the raising of grain organic efficiency.

In addition, be formed as size by point chip select 54b at the two ends, left and right by primary dcreening operation 31 shorter than point chip select 54a of left and right center side, can promote that the hole 54C that leaks down that the both ends, left and right of sorting process thing easily piled up by grain etc. from primary dcreening operation 31 leaks down.Its result, can avoid resulting from the accumulation of sorting process thing at primary dcreening operation about 31 both ends, the reduction of the efficiency of separation.

In addition, be formed at the hole 54A and possess the ratio of leak down hole 54B, 54C of point chip select 54a, 54b of leaking down not possessing point chip select 54a, 54b of primary dcreening operation 31, various change can be carried out according to the kind etc. of the grain of institute's sorting.

In addition, also can the toe lateral of sorting plate 54 with rank rear leak down hole 54C the staggered arrangement of leaking down between the 54C of hole in prostatitis formed multiple leak down hole 54C, rectangular when this hole 54C that leaks down is formed as overlooking viewing, there is the rectangular sort sheet 54b of short size.

Be set to as shown in Figure 3, from the sorting wind by epimere wind path R1 in the sorting wind of windmill 20, through being formed in the wind path R4 in screen box 29, the second plate 45 towards thrashing cylinder 16 flows.Thereby, it is possible to prevented the handled thing of the flowing to downstream, threshing process direction by the second plate 45 towards the conveying of thrashing cylinder 16 ambient wind.Its result, can avoid handled thing pile up at the nearby position of the second plate 45 and bring obstacle to threshing process.

As Fig. 3 and as shown in Figure 6, the threshing tooth 48A being positioned at its rear end in thrashing cylinder 16 is positioned at the rear of accepting net 17 rear end and in the face of row's stalk mouth 18.That is, in the rear end of thrashing cylinder 16, accept net 17, so become the state defining larger space around it owing to not existing.Thus, even if threshing straw is wrapped on the threshing tooth 48A of thrashing cylinder rear end, deviate from from the end of this threshing tooth 48A under the centrifugal action that this threshing straw also can produce in the rotation with thrashing cylinder 16.Its result, can suppress the delay of the threshing straw caused at thrashing cylinder 16 rear end relative threshing tooth 48A hook due to threshing straw effectively, can promote that threshing straw is from the discharge of row's stalk mouth 18.

Below, dividing box and ventilation provided thereon (breather) device of gearbox are described with reference to Figure 17 to Figure 20.

[entirety of dividing box is formed]

Figure 17 show as the dividing box being suitable for air-breather of the present invention an example, the gearbox 101 that uses in full feed type combine harvester.

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

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

Hydrostatic stepless speed change device 105, on the axle support 121 extended above a dividing box unit bodies 102 in dividing box unit bodies 102,102 to the left and right, insert the power shaft 150 with pump driving shaft one, thus gearbox 101 is bearing in the upper end of gearbox 101.Relatively be located at the input belt wheel 151 on above-mentioned power shaft 150, transmit the power of the driving system opened with the power branch of operating system in V belt translation mode from engine (figure).

Hydrostatic stepless speed change device 105 be inserted in the top of gearbox 101, the power that the gear in relative gearbox 101 input is crossed by hydrostatic stepless speed change device 105 speed change with the output shaft 152 of motor drive shaft one.The secondary gear 113 as gear of next power by equipment in gearbox 101 is transmitted with height two grades of gear graduations from hydrostatic stepless speed change device 105, afterwards, sidepiece clutch 114 branch via left and right is passed to the axletree 106 of left and right, and crawler travel device to the left and right exports.

The summary situation of the gear equipped in gearbox 101 as Figure 17 and as shown in Figure 18.

Namely, in gearbox 101, crossbearer is supported with the above-mentioned axletree 106 of the first axle 161, jackshaft 162, second axle 163 and pair of right and left, is equipped with the secondary gear 113 that can be carried out height two grades of speed changes by gear shift action across the first axle 161 and jackshaft 162 ground.

On the left and right central portion of jackshaft 162, loosen to be fitted together to and be supported with central gear CG, this central gear CG is formed with the minor diameter change-speed gearing G6 integration that can be engaged in above-mentioned gear wheel in large diameter G4 by the major diameter change-speed gearing G5 that can be engaged in above-mentioned small diameter gear G3.

Small diameter gear G3 is made to select to engage with major diameter change-speed gearing G5 by being moved to right in figure by change gear SG, and present " low speed ", gear wheel in large diameter G4 is made to select to engage with minor diameter change-speed gearing G6 by being moved to left in figure by change gear SG, and present " at a high speed ", by shelves gear SG being moved to the centre position of not engaging with central gear CG, and present " neutrality ".

In the axle supporting portion of the first axle 161 being equipped with change gear SG, be equipped with parking brake PB.This parking brake PB stops the rotation of change gear SG and is fixed in transmission downstream.

In the left and right of jackshaft 162, on axis direction, can loosen the chimeric clutch gear G7 being supported with formation sidepiece clutch 114 slidably, meanwhile, on the second axle 163, loosening being fitted together to is supported with a pair output gear G8 engaged with each clutch gear G7.

Inwardly slide by making clutch gear G7, engage with the internal-gear G9 being formed in above-mentioned central gear CG center and become " clutch engages " state, by making clutch gear G7 outwards slide, then become " clutch disconnection " state departed from from above-mentioned internal-gear G9.All the time by the outer spring 168 be arranged on jackshaft 162, each clutch gear G7 is exerted a force towards the slip of " clutch joint " direction.Clutch gear G7 is configured to the form of large width, and any one state being in " clutch joint " and " clutch disconnection " engages with output gear G8 all the time.

Each output gear G8 connects with the loosening chimeric middle small diameter gear G10 one being supported on the second axle 163, and, each middle small diameter gear G10 engages with the large diameter reduction gearing G11 being fixedly installed in each axletree 106 medial end respectively, is passed to the axletree 106 of left and right from the dynamic retarding of each output gear G8 taking-up.

Near the left and right end portions of jackshaft 162, be provided with the sidepiece brake SB acting on above-mentioned clutch gear G7.This sidepiece brake SB is made up of many plates friction brake, this many plates friction brake forms by making with the friction plate 175 of shaft hub 169 peripheral snap and the friction plate 177 that engages with rigid bearing case 176 inner circumferential on axis direction alternately coincidence, outwards slide further by making clutch gear G7 exceed " clutch disconnection " position, operation panel 171 crimps the friction plate 175,177 of coincidence and implements friction catch to clutch gear G7.

[formation of air-breather]

At the position, top of the gearbox 101 of in-built above-mentioned gear, as shown in the key diagram of Figure 19 and Figure 20, be equipped with air-breather 104 of the present invention.

Be provided with outer wall 122 and the next door 123 of the upper side of each dividing box unit bodies 102 around, this next door 123 together forms expansion chambers 140 for utilizing the idle space that produces between outer wall 122 and configuration drive disk assembly in its vicinity (that is, above-mentioned output shaft 152 and the first axle 161, the gear class etc. that arranges around these axles in addition) with above-mentioned outer wall 122.

The above-mentioned expansion chambers 140 being located at each dividing box unit bodies 102 is opened wide in involutory surface 120 side of gearbox 101, at other position by above-mentioned next door 123 around so that form by zoning become relative to the oily storage space 110 in gearbox 101, namely for above-mentioned various gears etc. to be immersed in the cell that the in-built space of state in lubricating oil is sealed shape.

The above-mentioned expansion chambers 140 be located in each dividing box unit bodies 102 of left and right is separated by the seal about 103 be located on the involutory surface 120 of gearbox 101, be positioned at the bottom side of the first expansion chambers 140a of wherein side, the part in the face of involutory surface 120 is being formed by notch the little connected entrance 141 of ventilating.In another the second expansion chambers 140b of dividing box unit bodies 102 being located at the opposition side across above-mentioned seal 103, be provided with horizontal expelling tube as allowing the blow vent 142 be communicated with extraneous gas.

And, on the seal 103 between above-mentioned two expansion chambers 140a, 140b, near the outer wall 120 of gearbox 101, be formed with intercommunicating pore 130, this intercommunicating pore 130 allows the first expansion chambers 140a from being communicated with above-mentioned oily storage space 110 to ventilate to the second expansion chambers 140b side possessing above-mentioned blow vent 142.

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

The air-breather 104 of such formation forms the discharge of carrying out air as shown in arrow in Figure 19.

That is, when making the pressure increase of gas of oily storage space 110 side of below due to the rising of oil temperature or the inclination of body etc., gas is press-fit into the first expansion chambers 140a above it by little connected entrance 141.

Now, in the first expansion chambers 140a up, to reduce pressure than little connected entrance 141 space capacious, thus can from inflow gas, remove oil content to a certain degree and make it be back to oily storage space 110 from above-mentioned little connected entrance 141.

And, when pressure in above-mentioned first expansion chambers 140a increases, gas flow into the second expansion chambers 140b of opposition side via the intercommunicating pore 130 of seal 103, then is reduced pressure by large space, after further reduction oil content, flow out to outside from above-mentioned blow vent 142.

Though do not have to form the path for making the oil produced because of gas-liquid separation turn back to oily storage space 110 therein on above-mentioned second expansion chambers 140b, but because most oil content was previously removed in the first expansion chambers 140a side, so the possibility of storing large gauging in the second expansion chambers 140b side is very little.

Having the occasion of large gauging, as long as above-mentioned blow vent 142 is opened and carries out attraction discharge from outside, or carrying out while gearbox 101 entirety is safeguarded, case being decomposed discharging.

On the expelling tube forming above-mentioned blow vent 142, be connected with the outstanding breather pipe 143 bending to semicircle shape upward.Why connecting outstanding so bending breather pipe 143, is to stop water to invade externally to gearbox 101 side when the cleaning of body.

As described above, above-mentioned air-breather 104 is provided on the gearbox 101 by being engaged multiple dividing box unit bodies 102,102 partition type formed each other by involutory surface 120, each dividing box unit bodies 102,102 of involutory surface 120 both sides is integrally formed expansion chambers 140(140a, 140b that the cell that opened wide by involutory surface 120 side is formed respectively), the little connected entrance 141 be communicated with the oily storage space 110 in dividing box is formed in the expansion chambers 140a of a side, meanwhile, blow vent 142 is equipped with at the expansion chambers 140b of the opposing party.And sandwiched seal 103 on above-mentioned involutory surface 120 and punish expansion chambers 140a, the 140b every both sides at involutory surface 120, simultaneously, the seal 103 being formed intercommunicating pore 130, ventilating towards the expansion chambers 140b side possessing above-mentioned blow vent 142 to allow the expansion chambers 140a from being communicated with above-mentioned oily storage space 110.

According to above-mentioned formation, when forming the gearbox 101 of partition type, be integrally formed expansion chambers 140(140a, 140b by means of only in inside), the seal 103 that must be arranged on case involutory surface 120 place just can be utilized to form air-breather 104.

Therefore, as air-breather without the need to adding special parts, just can form the air-breather with labyrinth structure or expansion chambers, cost reduction can be realized simply to form.

In addition, above-mentioned expansion chambers 140(140a, 140b) be arranged on the outer wall 122 that is formed at each dividing box unit bodies 102 upper side and arrange in the space between drive disk assembly in its vicinity (that is, above-mentioned output shaft 152 and the first axle 161, the gear class etc. that arranges around these axles in addition).

According to above-mentioned formation, expansion chambers 140(140a, 140b is formed) by utilizing the outer wall 122 of each dividing box unit bodies 102 upper side and arranging between drive disk assembly in its vicinity, so-called idle space, shape without the need to gearbox 101 entirety changes or dimension modifying etc., just can form the air-breather 104 of high functionality compactly.

[other embodiments]

Though be illustrated sheller unit of the present invention preferred embodiment with reference to accompanying drawing above, the present invention is not limited to the formation of this embodiment.Such as can carry out following cited various changes.

(1) as sheller unit, also can substitute illustrated full feed type combine harvester (whole culm discharging type combine-harvester), and be equipped on the sheller unit of half feed type combine harvester (culm head discharging type combine-harvester) only supplying the fringe point side of harvesting straw to threshing chamber 14.

(2) as thrashing cylinder 16, both can not possessing the portion of being grilled into 41, also can be equipped with whole comb or threshing tooth 48 but not helical tooth 43 being grilled into portion 41.

(3) as thrashing cylinder 16, each thrashing cylinder framework (bar-like member) 47 can adopt pole steel, square rod steel, square tube steel, angle section or groove material etc.

(4) in thrashing cylinder 16, the equipment quantity of thrashing cylinder framework (bar-like member) 47 can carry out various change, such as, can equip eight thrashing cylinder frameworks 47.

(5) in thrashing cylinder 16, can also with can not change towards mode multiple thrashing cylinder framework (bar-like member) 47 is fixedly mounted on each plate 44 ~ 46.

(6) all threshing tooths 48 bar-like member 47 can equipped are welded and fixed on bar-like member 47, or can install and remove ground bolt be connected to bar-like member 47.

(7) all threshing tooths 48 bar-like member 47 can equipped or the threshing tooth 48 of a part are formed as having the foliaceous of the guide surface that threshing handled thing guides towards downstream, threshing process direction by the rotation along with thrashing cylinder 16, or be bent to L-shaped, to have the function as guide portion, that is, along with threshing handled thing guides towards downstream, threshing process direction by the rotation of thrashing cylinder 16.

(8) as threshing tooth 48, square rod steel or circular pipe etc. can be adopted, or the material being bent to U-shaped or V-shaped can be adopted.

(9) configuration space as threshing tooth 48 can carry out various change, such as in the occasion equipment quantity of thrashing cylinder framework (bar-like member) 47 being set to the multiple of 3, be configured setting, the threshing tooth 48 making each threshing tooth 48 be positioned to equip with adjacent thrashing cylinder framework (bar-like member) 47 in the longitudinal direction staggers the state of 1/3 spacing, or, the equipment quantity of thrashing cylinder framework (bar-like member) 47 is being set to the occasion of the multiple of 4, be configured setting, the threshing tooth 48 making each threshing tooth 48 be positioned to equip with adjacent thrashing cylinder framework (bar-like member) 47 in the longitudinal direction staggers the state of 1/4 spacing.Or, such as, also the configuration space of threshing tooth 48 can be set different in toe lateral and rear portion side, to make the time interval of the threshing tooth 48 of rear portion side larger than the time interval of the threshing tooth 48 of toe lateral.

(10) partition member 45 can form at it, carry out various change in shape or equipment quantity etc., such as can form partition member 45 with circular porous plate, or, partition member 45 can be formed with the multiple bar-shaped extension component extending to each bar-like member 47 from fulcrum 15 with the attaching parts of ring-type of the extension side being connected each extension component.And, also partition member 45 can be formed as more by its outer circumferential side more by the shape such as coniform in downstream, threshing process rear, be configured to have the function guided to by threshing handled thing around thrashing cylinder 16, or multiple partition member 45 can be possessed on thrashing cylinder 16.

(11) also can equipped with dedicated play wind apparatus (such as windmill), in order to produce the wind that flows towards partition member 45 from the threshing process direction upstream side of opposing spaced apart parts 45.

(12) all left and right sending dirt valve 49 to be formed as not arriving top board 24 sending dirt valve 49 or part top board 24 can equipped either party side edge part 24C or the shorter length of side edge part 24C of left and right both sides.

(13) movable manner can will dirt valve 49 being sent to be configured to carry out corresponding to the threshing handled thing amount in threshing chamber 14 aperture adjustment, closes threshing efficiency to improve threshing performance further.

(14) as top board 24, the rotational trajectory K that its bend 24A draws along threshing tooth 48 end can be formed as and bend.In addition, alternative bend 24A, is configured to have the bend be bent to form in the mode of the upper side covering thrashing cylinder 16 from top.

(15) as thrashing cylinder 16, its threshing handling part 42 can be configured to drum type brake by with lower component: be formed as cylindric cylinder portion; With with two conveyor screws being grilled into mode that two helical blades 43 that portion 41 possesses are connected and being equipped in a periphery, portion; And, separate with the state of giving prominence to towards foreign side multiple threshing tooths etc. that predetermined distance is equipped in each spirochetal peripheral part dismantledly.

(16) as thrashing cylinder 16, can so that the mode of dismounting single helical blade 43 can be installed on the outer peripheral face of its leading section 41, or, can so that the mode of dismounting the helical blade 43 of more than three can be installed on the outer peripheral face of its leading section 41.

(17) as thrashing cylinder 16, can on the outer peripheral face of its leading section 41, spirally arrangement is equipped with the multiple bearing metal parts installing helical blade 43 removably.

(18) as helical blade 43, spirally can arrange on the outer peripheral face of thrashing cylinder leading section 41 and be equipped with multiple leaf shape part and form.

(19) as conveying assisted guides 51, both can be configured to split left and right, and also can be configured to be divided into more than three parts.

(20) as conveying assisted guides 51, the part 51B that can be configured to only be positioned at thrashing cylinder 16 direction of rotation downstream can carry out dismounting.

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

(22) as seaming component 50, the mode that can be arranged on installing and removing and accept on net 17 can be adopted.

(23) in the above-described embodiment, expansion chambers 40 is arranged in the space between outer wall and arranging drive disk assembly being in its vicinity formed at each dividing box unit bodies 2 upper side, but be not limited to this, as long as the position higher than the predetermined fuel head in oily storage space 10, then suitable position can be selected to arrange.

(24) the little connected entrance 41 being formed at the first expansion chambers 40a is not limited to the otch of open at one end such shown in embodiment, also can be the mouth of the suitable shapes such as circular hole, position is offered for it, as long as the position that the oil oily storage space 10 being downwards stored in indoor is discharged just can freely can be set.

(25) in the occasion that such as three segmentations are above that dividing box is more than two segmentations, expansion chambers 40 can be formed respectively at the position in opposite directions of the involutory surface 20 with each segmentaion position, and the seal 3 clamped with intercommunicating pore 30, form the air-breather 4 with the labyrinth structure of more than three sections.

Claims (8)

1. a sheller unit, possess by with fulcrum (15) for fulcrum is driven in rotation and the harvesting straw being supplied to threshing chamber (14) is implemented to the thrashing cylinder (16) of threshing process, it is characterized in that,

Above-mentioned thrashing cylinder (16) comprises multiple bar-like member (47), support unit (44,46) and multiple threshing tooth (48), and above-mentioned multiple bar-like member (47) is equipped with the posture along above-mentioned fulcrum in the circumference of above-mentioned thrashing cylinder, with separating predetermined distance arrangement; Above-mentioned support unit (44,46) is provided in the front and back of above-mentioned fulcrum, to support these bar-like members; Above-mentioned multiple threshing tooth (48) is equipped on above-mentioned each bar-like member, to arrange with separating predetermined distance in the longitudinal direction from above-mentioned bar-like member towards the posture that the foreign side of above-mentioned thrashing cylinder is outstanding;

On above-mentioned thrashing cylinder (16), be equipped with the partition member (45) will separated before and after its inner space.

2. sheller unit as claimed in claim 1, is characterized in that, is equipped with the windmill (20) producing sorting wind, and, the sorting wind from above-mentioned windmill is flowed towards above-mentioned partition member (45).

3. sheller unit as claimed in claim 1, it is characterized in that, the upper side of above-mentioned thrashing cylinder (16) is covered by top board (24), above-mentioned top board is equipped with and multiplely send dirt valve (49), above-mentioned harvesting straw guides to downstream, threshing process direction along with the rotary actuation of above-mentioned thrashing cylinder by the plurality of dirt valve (49) that send.

4. sheller unit as claimed in claim 3, it is characterized in that, the above-mentioned dirt valve (49) that send is formed as, and has the length stepping up the edge, the left and right sides stating top board (24).

5. sheller unit as claimed in claim 3, it is characterized in that, above-mentioned top board (24) is formed as, and the rotational trajectory (K) roughly drawn out along the rotation with above-mentioned thrashing cylinder (16) by the end of above-mentioned threshing tooth (48) bends.

6. sheller unit as claimed in claim 1, it is characterized in that, be equipped with helical blade (43) at the leading section of above-mentioned thrashing cylinder (16), this helical blade (43) is grilled into towards rear along with the rotation of above-mentioned thrashing cylinder and carries and supplied the harvesting straw transported towards this leading section;

Above-mentioned helical blade (43) is installed dismantledly.

7. sheller unit as claimed in claim 6, it is characterized in that, conveying assisted guides (51) is provided with in the below of above-mentioned thrashing cylinder (16), this conveying assisted guides (51) is configured to the leading section covering above-mentioned thrashing cylinder from below, thus accept and supply towards the leading section of above-mentioned thrashing cylinder the harvesting straw transported, and be auxiliaryly grilled into conveying by above-mentioned helical blade to what gather in that straw carries out;

Above-mentioned conveying assisted guides (51) is configured to, and its part being at least positioned at the direction of rotation downstream of above-mentioned thrashing cylinder can dismounting.

8. sheller unit as claimed in claim 1, is characterized in that, is equipped with accepts net (17) in the mode covering above-mentioned thrashing cylinder (16) from below;

Top board (24) is equipped with in the mode covering above-mentioned thrashing cylinder (16) from top;

Between above-mentioned undertaking net (17) and above-mentioned top board (24), be equipped with seaming component (50) dismantledly, this seaming component (50) is formed as having the guide surface (50a) be concatenated by the inner surface of above-mentioned undertaking net and top board.