CN101218870A

CN101218870A - Threshing device

Info

Publication number: CN101218870A
Application number: CNA2007101613309A
Authority: CN
Inventors: 福冈义刚; 文野裕一; 田中祐二
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2007-01-11
Filing date: 2007-09-28
Publication date: 2008-07-16
Anticipated expiration: 2027-09-28
Also published as: CN107771539B; CN107820869A; JP2008167687A; CN107771539A; CN107787686A; CN107787686B; CN101218870B; JP4148978B2

Abstract

The invention relates to a threshing mechanism with excellent handling ability which can not lead to a needed load increase and sufficient threshing treatment with threshing treatment materials when threshing treatment materials are supplied in great numbers. The threshing mechanism is provided with a threshing cylinder (16) which is driven to whirl with a fulcrum shaft (15) as a fulcrum and do threshing treatment with reaping straw supplied to a threshing chamber (14). The threshing cylinder (16) includes a plurality of rod-shape parts (47), support parts (44, 46) and a plurality of threshing teeth (48), wherein a plurality of rod-shape parts (47) are applied at certain intervals in circumferential direction (16) along threshing chamber (14), support parts (44, 46) are applied in the back and forth of the fulcrum shaft (15) in order to support the rod-shape parts (47), a plurality of threshing teeth (48) is provided on each rod-shape parts (47), is arrayed at certain intervals in the state of bulging from the rod-shape parts (47)to the threshing cylinder (16) in the back and forth.

Description

Sheller unit

Technical field

The present invention relates to possess the sheller unit of threshing tube, this threshing tube carries out threshing for fulcrum is driven in rotation to the harvesting straw that supplies to threshing chamber with the fulcrum to be handled.

Background technology

As the threshing barrel structure of sheller unit as described above, exist the structure (for example with reference to patent documentation 1) that constitutes the threshing tube forming on the periphery of straight drum part cylindraceous the spiral helicine threshing tooth of equipment etc.

In addition, exist and on the periphery that forms tube cylindraceous main body, be equipped with a plurality of structures (for example with reference to patent documentation 2) that constitute the threshing tube into the threshing tooth of V font etc. that are bent to form.

[patent documentation 1] Japanese kokai publication hei 11-266666 communique (JP-11-266666A)

[patent documentation 2] TOHKEMY 2006-67910 communique (JP2006-067910A)

In above-mentioned formation, because the major part of threshing chamber is as the configuration space of threshing tube, remain in the processing space that threshing tube small space on every side is used as threshing processing usefulness and only have, thereby, in the occasion that a large amount of harvesting straws is supplied to threshing chamber as the threshing handled thing owing to high speed operation etc., exist it to handle the saturated danger in space, and when this taking place when saturated, handle in the space because the threshing handled thing is trapped in, handle just from accepting the unfavorable condition that net leaks down so cause the threshing handled thing not carry out sufficient threshing easily, perhaps threshing handles that required load increases and the unfavorable condition etc. of transmission system equivalent damage that makes the transmission of relative threshing tube.

Summary of the invention

The object of the present invention is to provide a kind of sheller unit that possesses the threshing barrel structure of disposal ability excellence, do not increase even its threshing barrel structure also can not cause threshing to handle required load in a large amount of occasions of supplying with the threshing handled thing, can implement sufficient threshing to the threshing handled thing and handle.

In order to reach above-mentioned purpose, in the present invention, possess by for fulcrum is driven in rotation the harvesting straw that supplies to threshing chamber being implemented the threshing tube that threshing is handled with the fulcrum, wherein, above-mentioned threshing tube comprises a plurality of bar-like members, support unit, with a plurality of threshing teeth, above-mentioned a plurality of bar-like member is upwards separating set outfit the week of above-mentioned threshing tube with the posture along above-mentioned fulcrum with being spaced, above-mentioned support unit is arranged on the front and back of above-mentioned fulcrum so that support these bar-like members, above-mentioned a plurality of threshing tooth is equipped on above-mentioned each bar-like member, to separate set be spaced towards the outstanding posture of the foreign side of above-mentioned threshing tube at fore-and-aft direction from above-mentioned bar-like member.

Constitute according to this feature, threshing tube portion within it possesses the space that is communicated with threshing chamber, allows the threshing handled thing to enter into this inner space.Thereby, when its spinning movement,, by a plurality of bar-like members and threshing tooth these threshing handled things are implemented to hit on one side or comb is gone into etc. and carried out the threshing processing Yi Bian stir the threshing handled thing around it and enter into the threshing handled thing of inner space.

That is to say, even be fed into the occasion of threshing chamber as the threshing handled thing a large amount of harvesting straws, also the processing space that usefulness is handled as threshing in the inner space of threshing tube effectively can be utilized, so, can avoid handling the delay of the threshing handled thing in the space or handle the saturated of space.Its result, can avoid resulting from the threshing handled thing to be detained or handle the space saturated, the threshing handled thing do not carry out abundant threshing and just handles from accepting the unfavorable condition of leaking down and threshing on the net and handle required load and increase and make the generation of unfavorable condition etc. of transmission system damage of relative threshing tube transmission.

And, by upwards separating set a plurality of bar-like members that are equipped with the week at the threshing tube, can prevent that long stalk is wound up on the bar-like member with being spaced, can avoid the delay of the threshing handled thing that causes because of this coiling.And, when the spinning movement of threshing tube, be not only a plurality of threshing teeth, and even form a plurality of bar-like members of the barrel of threshing tube, also all work, thereby can improve the threshing performance as the threshing processing unit of the threshing handled thing being implemented by the threshing of hitting or comb goes into to realize is handled.

On the basis of above-mentioned formation, when on above-mentioned threshing tube, equipping the partition member that its front and back, inner space are separated, more favourable in the following areas.

Constitute according to this feature; by partition member; the not threshing straw etc. that can suppress the grain of the simple grainization by the threshing processing of threshing tube toe lateral or enter into threshing tube inner space in the initial stage that threshing is handled is handled the direction downstream to threshing and flows; and since this simple grain grain or not threshing straw etc. with the rotation of threshing tube be directed to the threshing tube around; so, can stop because simple grain grain or the inner space by the threshing tube not such as threshing straw not with stopping; handle the generation that the direction end of downstream side is discharged three losses that cause with the threshing straw from threshing.

Therefore; even in a large amount of occasions of supplying with the threshing handled thing; can not cause threshing yet and handle the increase of required load; can implement sufficient threshing to the threshing handled thing handles; and, owing to can stop the generation of three losses, can in the damage of avoiding increasing the threshing tube transmission system cause etc., improve threshing performance or grain organic efficiency because of load; its result can provide the threshing barrel structure of the sheller unit of durability or disposal ability excellence.

In addition, if equipment produces the windmill of sorting wind and the sorting wind from above-mentioned windmill is flowed towards above-mentioned partition member, more favourable in the following areas.

Constitute according to this feature, the threshing handled thing that is blocked by partition member is blown open to (threshing tube around) around the partition member under from the sorting wind action of windmill, flow towards threshing processing direction downstream around partition member along with the rotation of threshing tube, thereby, can avoid the threshing handled thing to be deposited in the position nearby of partition member.

Therefore, can prevent to cause disposal ability to reduce because of the accumulation of threshing handled thing.

In a preferred implementation, the upper side of above-mentioned threshing tube is covered by top board, a plurality of dirt valves that send of equipment on above-mentioned top board, and these a plurality of rotations of sending the dirt valve to be accompanied by above-mentioned threshing tube drive and above-mentioned harvesting straw are handled the guiding of direction downstream to threshing.

Constitute according to this feature, be fed into of the rotation of the harvesting straw of threshing chamber along with the threshing tube, be subjected to a large amount of strikes of implementing by a plurality of threshing teeth on one side and comb the flailing action of going into to be realized, be transferred towards the top of threshing chamber on one side, along with the top that arrives threshing chamber, under a plurality of effects of sending the dirt valve, handled the guiding of direction downstream towards threshing.

That is to say on the threshing tube, to possess a plurality of threshing teeth, can fully obtain the strike of threshing handled thing or comb to be gone into to wait the suitable flailing action of being realized, and can handle direction downstream conveying threshing handled thing towards threshing by the threshing tooth.

And, if each threshing profile of tooth is become, for example has the guide portion following threshing tube rotation and the threshing handled thing is handled the guiding of direction downstream towards threshing etc., then can carry out handling the threshing handled thing conveying in direction downstream more well towards threshing, and, if form the threshing dedicated shape of only carrying out going into, then can obtain to the more suitable flailing action of threshing handled thing at the strike or the comb of threshing handled thing.

Therefore, send the dirt valve mainly to carry out the threshing handled thing is handled the conveying in direction downstream to threshing by making, can provide can not damage the threshing handled thing towards threshing handle the direction downstream transportation performance, can realize the threshing performance and encourage the threshing structure of full feeding type combine of the raising of organic efficiency.

The above-mentioned dirt valve that send forms, has the length of stepping up the left and right sides edge portion that states top board, at this moment, can enough obtain to be equipped in the length of sending the dirt valve on the top board longways, thus, can carry out handling towards threshing the conveying guiding in direction downstream more well by the threshing handled thing that send the dirt valve to implement.Therefore, in the raising of threshing performance that realizes a plurality of threshing teeth and grain organic efficiency, can realize of the raising of threshing handled thing towards the transportation performance in threshing processing direction downstream.

And, when above-mentioned top board is formed, roughly along with the rotation of above-mentioned threshing tube during by the terminal rotational trajectory bending of being drawn out of above-mentioned threshing tooth, can make threshing handled thing that rotation with the threshing tube is delivered to threshing chamber top along top board or send the dirt valve on one side, Yi Bian handle the below channeling conduct in direction downstream swimmingly towards threshing.Therefore; in the raising of threshing performance that realizes a plurality of threshing teeth and grain organic efficiency; can realize that the threshing handled thing handles the raising of the transportation performance in direction downstream towards threshing, in addition, can also avoid the grain damage that causes because of collision etc. with top board.

In a preferred implementation, leading section equipment helical blade at above-mentioned threshing tube, this helical blade is grilled into and carries by the harvesting straw that transports towards this leading section supply towards the rear along with the rotation of above-mentioned threshing tube, and above-mentioned helical blade is installed dismantledly.

Constitute according to this feature, owing to contact 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 more be changed at helical blade.Thus, compare with the occasion of not equipping helical blade at threshing tube leading section by welding etc. not detachablely, can cut down significantly and change required time and the cost of helical blade, its result can make the replacing of the helical blade of wearing and tearing carry out easily.And, owing to change easily the helical blade of wearing and tearing, thus can easily avoid the helical blade that when letting alone the helical blade wearing and tearing, causes to the reduction that is grilled into the conveying effect of harvesting straw, follow this reduction and make the threshing disposal ability reduce such unfavorable condition.

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

On the basis of this formation, below above-mentioned threshing tube, be provided with and carry the aid in guide part, this conveying aid in guide part is configured to cover from the below leading section of above-mentioned threshing tube, thereby accept towards the leading section of above-mentioned threshing tube and supply with the harvesting straw that transports, and auxiliary be grilled into conveying to what the harvesting straw carried out by above-mentioned helical blade, described conveying aid in guide part constitutes, its part that is positioned at the direction of rotation downstream of above-mentioned threshing tube at least can dismounting, at this moment, carrying the aid in guide part, can only the conveying aid in guide part of wearing and tearing more be changed owing to contact and the occasion of noticeable wear with fiercenesses such as gathering in straw for a long time.Thus, compare with the occasion that for example will carry the aid in guide part not to be equipped on supporting frame etc. not detachablely by welding etc., can cut down significantly to change and carry required time and the cost of aid in guide part, its result can make the replacing of the conveying aid in guide part of wearing and tearing carry out easily.And, owing to change easily the conveying aid in guide part of wearing and tearing, thus can easily avoid let alone cause when carrying the wearing and tearing of aid in guide part, because in helical blade and the conveying effect that the is grilled into reduction of carrying the gap that forms between the aid in guide part to become to make greatly helical blade to the harvesting straw, follow this reduction to make the such unfavorable condition of threshing disposal ability reduction.

In addition, the harvesting straw etc. that is grilled into conveying towards the rear by helical blade along with the rotation of threshing tube is subjected to the influence of threshing tube rotation, partially by concentrating on the threshing tube direction of rotation downstream part in the conveying aid in guide part.Thereby, in carrying the aid in guide part, be positioned at the part in this threshing tube direction of rotation downstream, fierce with contacting of harvesting straw etc., the easy more wearing and tearing that result from this contact.

Therefore, to carry the direction of rotation downstream part of the threshing tube in the aid in guide part to constitute the form that to install and remove if consider this aspect, then make the occasion of direction of rotation downstream part noticeable wear of the threshing tube in the conveying aid in guide part contacting, can only the part of these wearing and tearing more be changed because of fiercenesses such as long-term and harvesting straws.Thus, compare, can further cut down and change required cost with the occasion of changing whole conveying aid in guide part.

Therefore, can install and remove so simple improvement by implementing to carry the aid in guide part to constitute its part that is positioned at the direction of rotation downstream of threshing tube at least, can be simply and carry out at an easy rate at the suitable disposal of carrying the wearing and tearing of aid in guide part, its result can easily avoid resulting from reduction wearing and tearing, the threshing disposal ability of carrying the aid in guide part.

In a preferred implementation, be equipped with in the mode that covers above-mentioned threshing tube from the below and accept net, be equipped with top board in the mode that covers above-mentioned threshing tube from the top, be equipped with seaming component dismantledly above-mentioned accepting between net and the above-mentioned top board, this seaming component forms has the guide surface that the inner surface of accepting net and top board is contacted.

Constitute according to this feature, because fiercenesses such as long-term and harvesting straw contact and the occasion of noticeable wear, can only the seaming component that weares and teares more be changed at the guide surface of seaming component.Thus, and compare accepting the occasion of not equipping seaming component on net or the top board not detachablely by welding etc., can cut down required time and the cost of seaming component of changing wearing and tearing significantly, its result can make the replacing of the seaming component of wearing and tearing carry out easily.And, owing to change easily the seaming component of wearing and tearing, thereby thereby can easily avoid when letting alone the seaming component wearing and tearing, causing, since the guide surface that can't utilize seaming component will accept the inner surface of the inner surface of net and top board contact make that harvesting straw etc. can not stride the threshing tube accept net and the such unfavorable condition of the smooth and easy mobile threshing disposal ability reduction of top board.

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

Constitute the advantageous effects that plays about other feature formation and by this feature, just can become clear by in the reference accompanying drawing, reading following explanation.

Description of drawings

Fig. 1 is the unitary side view that feeds the type combine entirely.

Fig. 2 is the whole vertical view that feeds the type combine entirely.

Fig. 3 is the vertical profile end view of sheller unit.

Fig. 4 is the local vertical profile front view of formation of the leading section of expression sheller unit.

Fig. 5 is the local vertical profile front view of formation of the front and back pars intermedia of expression sheller unit.

Fig. 6 is the vertical view of the major part of expression threshing tube and the formation of carrying the aid in guide part.

Fig. 7 is the cross-sectional vertical view of major part of the formation of expression threshing tube.

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

Fig. 9 is the vertical profile rearview of threshing tube of the formation of expression threshing tube.

Figure 10 is the cross-sectional vertical view of major part of another formation of expression threshing tube.

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

Figure 12 is the cross-sectional vertical view that the major part of the length of dirt valve and configuration is sent in expression.

Figure 13 is the vertical view of the major part of the expression formation of carrying the aid in guide part.

Figure 14 is the vertical profile end view of the major part of the expression formation of carrying the aid in guide part.

Figure 15 is the stereogram of major part that the formation of net is accepted in expression.

Figure 16 is the stereogram of major part of the formation of expression 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 of expression air-breather.

Embodiment

Illustrated among Fig. 1 the whole side as the full feeding type combine (whole culm discharging type combine-harvester) of harvesting object such as rice or wheat.Its whole end face has been shown among Fig. 2.Such as shown in these figures, the combine of feeding type entirely is equipped with engine 2 and speed change gear (not shown) in the right front portion of the body framework 1 that is formed by square tube steel etc.In the bottom of body framework 1, be equipped with by power-actuated pair of right and left crawler type running device 3 from engine 2 through transmission such as speed change gears.In the front portion of body framework 1, liftable swingingly is connected with harvesting as the upright straw of planting of harvesting object and with its harvesting conveying plant of rearward carrying 4.In the left side of body framework 1, be equipped with

sheller unit

5,5 pairs of harvesting straws from harvesting conveying plant 4 of this sheller unit are implemented threshing and handle, and simultaneously, also carry out sorting process to handling resulting handled thing by this threshing.Right-hand part at body framework 1 is equipped with sack-filling device 6, the grain that this sack-filling device 6 is stored from sheller unit 5, and can be with the grain bagging that should store.Be formed with in the right front portion of body framework 1 and take Drive Section 7.

About crawler type running device 3 so constitute, promptly, based on taking the shuttle-type neutral answer type control stick 8 of cross that Drive Section 7 the possessed swinging operation of direction to the left and right, steering (not shown) action, thus, switch and show about crawler type running device 3 craspedodrome state and their differential steering states of being driven by constant speed.

On the end, the left and right sides of front end of harvesting conveying plant 4, be equipped with along with body travels and will plant upright straw comb and be divided into the nearside divider 9 of planting upright straw beyond upright straw of planting of harvesting object and the harvesting object.In the front upper of harvesting conveying plant 4, be equipped with by about the rotating drum 10 that is grilled into towards the rear of the fringe point side of planting upright straw of the harvesting object that branches away of nearside divider 9 comb.The shut-off mechanism 11 of the strain root side of planting upright straw of cutting off the 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, upright straw (harvesting straw) deflection of planting after this auger conveyor 12 will be cut off by shut-off mechanism 11 is collected the specified location of left and right directions, and, send towards the rear from this specified location.On the specified location of auger conveyor 12, be equipped with by the feeder 13 that will constitute from the conveyer that the harvesting straw that this specified location is sent is supplied with conveying towards sheller unit 5.

Harvesting conveying plant 4 is by the action of the lift cylinders (not shown) of the fluid pressure type of striding body framework 1 and feeder 13 and setting up, and is that fulcrum carries out lifting and swinging with the tie point of body framework 1 and feeder 13.The action of lift cylinders, by the operating state of the swinging operation switching control valve (not shown) of direction is and controlled forwards, backwards based on control stick 8, this control valve control work oil phase flows to lift cylinders.That is to say,, can make 4 liftings of harvesting conveying plant, can change the harvesting height adjusting etc. that shut-off mechanism 11 is planted the height and position of upright straw relatively by direction swinging operation control stick 8 forwards, backwards.

To as shown in Figure 5, be formed with threshing chamber 14 as Fig. 3 on the top of sheller unit 5.In threshing chamber 14, being equipped with the front and back of setting up with the throughput direction along the harvesting straw is the threshing tube 16 that fulcrum is rotated to fulcrum 15.Below threshing tube 16, be equipped with and accept net 17, this accept net 17 form the lower side that covers threshing tube 16 from the below, the front watches the shape that is the U font, accept the harvesting straw of being handled by threshing, and the handled thing that is obtained by the threshing processing is leaked down with the rotation of threshing tube 16.In sheller unit 5, at the rear of accepting net 17 that the direction end of downstream side is handled in its threshing, the straw that is formed with after being used for threshing handled is discharged to the outer row's stalk mouth 18 of machine.Accept net 17 below, be equipped with implementing to sieve the swing sorting mechanism 19 of sorting process from accepting handled thing that net 17 leaks down.In the front lower place of swing sorting mechanism 19, be equipped with towards supplying with sorting wind and these handled things are implemented the windmill 20 that pneumatic separatings are handled from accepting net 17 handled thing that leaks down and the handled thing that sieves the sorting process.At the rear of windmill 20, be formed with the recoverer 21 that the handled thing that leaks down from the toe lateral of swing sorting mechanism 19 is reclaimed.At the rear of a recoverer 21, be formed with the secondary recovery portion 22 that the handled thing that leaks down from the rear portion side of swing sorting mechanism 19 is reclaimed.At the rear of swing sorting mechanism 19, be formed with and do not leak down and the handled thing of rearward end that is transported to swing sorting mechanism 19 is discharged to the outlet 23 outside the machine from swing sorting mechanism 19.Above threshing tube 16, can equip the top board 24 that covers the upper side of threshing tube 16 from the top with opening and closing, harvesting straw that will be transported by the top towards threshing tube 16 along with the rotation of threshing tube 16 and threshing handled thing are towards accepting net 17 guiding.

Threshing chamber 14 is formed by the zonings such as net 17 and top board 24 of accepting that cover threshing tube 16.In the front end lower portion of threshing chamber 14, be formed with the supply port 25 that the harvesting straw integral body that will be transported by feeder 13 is supplied with as handled thing.

The fulcrum 15 of threshing tube 16 can rotate the antetheca 26 and the rear wall 27 that extend across sheller unit 5 and set up.And; threshing tube 16 utilizes the power from engine 2 that transmits via windmill 20 grades; with fulcrum 15 is the right-hand driven in rotation that fulcrum is watched to the front; drive by this rotation; the harvesting straw that is supplied to threshing chamber 14 is implemented threshing handles; promote the simple grainization of grain, simultaneously, this harvesting straw is carried towards the body rear that the direction downstream is handled in threshing.

Accepting net 17 is to form cancellate spill to accept net, catches the harvesting straw that is supplied to threshing chamber 14, and the threshing that 16 pairs of harvestings of auxiliary threshing tube straw carries out is handled.Specifically; accept net 17 and catch the harvesting straw of being handled by threshing on one side with the spinning movement of threshing tube 16; make on one side by this threshing and handle the grain of resulting simple grain grain or band branch stalk or handle the swing sorting mechanisms 19 of handled thing towards the below such as stalk bits that produce by threshing; on the other hand, prevent that threshing straw etc. from leaking down towards swing sorting mechanism 19.

Swing sorting mechanism 19 possesses by driving mechanism 28 drivings of cam-type and towards front and back watches the screen box 29 that is the frame shape to overlooking of swing.On the top of screen box 29, from the front of screen box 29, the grain pan 30, primary dcreening operation 31, the strawwalker 32 that are equipped with ragging to use in order.In the bottom of screen box 29, from the front of screen box 29, the grain pan 33 and the grain sieve 34 that are equipped with refining-sorting to use in order.On the top of swing sorting mechanism 19, to catch under the state that simple grain straw or stalk bits etc. mixes from accepting the sorting process thing that net 17 leaks down by the grain pan 30 on top or primary dcreening operation 31 or strawwalker 32, the ragging that sieves sorting is handled.In the bottom of swing sorting mechanism 19, catch the sorting process thing that under the state that the grain of simple grain straw or band branch stalk etc. mixes, leaks down by the grain pan 33 of bottom or grain sieve 34 from primary dcreening operation 31, the refining-sorting that sieves sorting is handled.Its result, with the sorting of sorting process thing become simple grain grain as a thing, as impurityes such as the grain of the band branch stalk of secondary thing or stalk bits, as the dust such as stalk bits of three things.

Windmill 20 utilizes the power from engine 2 via transmission mechanism 35 transmission of belt, is that fulcrum is driven in rotation with its fulcrum 20A, thereby generates sorting wind.Sorting wind by three wind path R1～R3 towards from accepting sorting process thing that net 17 leaks down or by the supplies such as sorting process thing of swing sorting mechanism 19 sortings, from the sorting process thing, blow thus and tell the little stalk bits of proportion etc., handle the outlet 23 in direction downstream towards threshing and carry.

Recoverer 21 is according to by the state of having removed dust such as straw bits from the sorting wind of windmill 20, and the simple grain grain that will leak down from the grain sieve 34 of swing sorting mechanism 19 reclaims as a thing.In the bottom of a recoverer 21, the conveyor screw 36 that left and right sides Xiang Di is equipped with utilization to obtain driving via the power from engine 2 of windmill 20 transmission such as grade.One time conveyor screw 36 will be carried towards the square auger body 37 (with reference to Fig. 2) of raising that is connected with at its right-hand member by the thing that a recoverer 21 is recovered to.

Secondary recovery portion 22 will be not leak down and impurityes such as the grain of impurity such as the grain of the band branch stalk that flows down from the rear end of grain sieve 34 or stalk bits and the band branch stalk that leaks down from the strawwalker 32 of swing sorting mechanism 19 or stalk bits reclaim as the secondary thing from the grain sieve 34 of swing sorting mechanism 19.Bottom in secondary recovery portion 22, the secondary conveyor screw 38 that left and right sides Xiang Di is equipped with utilization to obtain driving via the power from engine 2 of windmill 20 transmission such as grade.Secondary conveyor screw 38 will be carried towards the secondary foldback mechanism 39 (with reference to Fig. 2) that is connected with at its right-hand member by the secondary thing that secondary recovery portion 22 is recovered to.

Raise a thing that 37 pairs of square auger bodies transport by conveyor screw 36 and raise and send, and it is supplied to the grain case 40 that top possessed (with reference to Fig. 1 and Fig. 2) of sack-filling device 6.Secondary foldback mechanism 39 possesses carries out the handling part again (not shown) that threshing is handled once more to the secondary thing that is transported by secondary conveyor screw 38, raises to send by this secondary thing after handling part threshing is handled again and it is returned to swing sorting mechanism 19 (with reference to Fig. 2 and Fig. 3).

Threshing straw that outlet 23 will be not flow down from row's stalk mouth 18 from accepting net 17 to leak down or the stalk bits etc. that are transported to the rear of swing sorting mechanism 19 by sieving that sorting process and pneumatic separating are handled by sorting are discharged into outside the machine.

As Fig. 3 extremely as shown in Figure 9, threshing tube 16 possesses the portion that is grilled into 41 and the threshing handling part 42 that is connected with this rear end that is grilled into portion 41 of the circular cone shape that forms its leading section.Be equipped with two helical blades 43 on the outer peripheral face of the portion of being grilled into 41, these two helical blades 43 will be supplied with the harvesting straw that is delivered to supply port 25 by feeder 13, and the threshing handling part 42 towards the rear is grilled into conveying with the rotation of threshing tube 16.

Threshing handling part 42 is by constituting as lower member etc.: first plate (example of support unit) 44, its one are 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; The 3rd plate (example of support unit) 46, its one is equipped in the rearward end of fulcrum 15; By the six roots of sensation threshing tube framework (example of bar-like member) 47 that pipe steel etc. constitute, they to be supported upwards separating certain intervals the week of threshing tube 16 to posture along the front and back of fulcrum 15 with arranging; And a plurality of threshing teeth 48, they are to separate set with being spaced be equipped in each threshing tube framework 47 on towards the outstanding posture of the foreign side of threshing tube 16 at fore-and-aft direction from threshing tube framework 47.

That is to say that on threshing tube 16, according to separate set spaced mode on the circumferential and fore-and-aft direction of threshing handling part 42, arrangement is equipped with outstanding a plurality of threshing teeth 48 towards the foreign side of threshing tube 16.In addition, as threshing tube 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 is when 16 spinning movements of threshing tube, Yi Bian stir the handled thing around it and enter into the handled thing of internal space S, the threshing processing that these handled things are implemented that strike by threshing tube framework 47 and threshing tooth 48 or comb are gone into etc. and carried out on one side.

And, because the internal space S of threshing handling part 42 is communicated with threshing chamber 14, even a large amount of harvesting straws is being supplied to the occasion of threshing chamber 14 as handled thing, also the processing space that the internal space S of threshing handling part 42 is handled usefulness as threshing effectively can be utilized.Thus, can avoid handling the delay of the handled thing in the space and handle the saturated of space.Its result, can avoid resulting from handled thing to be detained or handle the space saturated, handled thing do not carry out abundant threshing and just handles from concave shaped portion 3 to leak down or threshing is handled required load and increased and make the generation of the undesirable conditions such as transmission system breakage that relative threshing tube 16 transmits.

And, when the spinning movement of threshing tube 16, not only a plurality of threshing teeth 48 also work as the threshing processing unit that acts on handled thing even form the six roots of sensation threshing tube framework 47 of the threshing handling part 42 of threshing tube 16, thereby, can realize the raising of threshing performance and threshing efficiency.

And; because a large amount of grain are subjected to the threshing processing of threshing tube 16 toe lateral and leak down from accepting net 17 after the simple grainization; make the handled thing amount of front and back pars intermedia of threshing tube 16 reduce; at this front and back pars intermedia; handled thing in the internal space S of second plate, the 45 prevention threshing tubes 16 that separate before and after the internal space S with threshing tube 16 is handled the direction downstream towards threshing and is flowed; in company with the rotation of threshing tube 16 with around the handled thing guide threshing tube 16, thereby promoted the strike of handled thing or comb to be gone into etc. the threshing of carrying out by threshing tooth 48 grades; and simple grain grain is from accepting leaking down of net 17.Thus; can stop the generation of three losses, these three times losses result from contained simple grain grain in the handled thing or not threshing straw etc. do not stop by threshing tube 16 internal space S, together handled row's stalk mouth 18 of direction end of downstream side and discharged in company with the threshing straw from being formed at threshing.

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

In addition, the extraneous gas that attracts from supply port 25 is by the inside of the feeder 13 that is connected with supply port 25, and, this feeder 13 will be formed on the delivery outlet (not shown) and supply port 25 connections of the recovery straw output usefulness on the harvesting recoverer of the harvesting conveying plant 4 that is equipped with shut-off mechanism 11 and auger conveyor 12 etc., thereby, when 16 spinning movements of threshing tube, under the sucking action that helical blade 43 rotations produce, in the harvesting recoverer by harvesting is handled or recycling produces dust such as stalk bits also together in company with extraneous gas, from the delivery outlet of harvesting recoverer via the inner space of feeder 13 and supply port 25 flow into threshing tube 16 on every side or the internal space S of threshing handling part 42.Its result can suppress to gather in and pile up adhering to of stalk bits in the recoverer etc. or fly upward, and can suppress that to adhere to the conveying of piling up the harvesting straw that causes bad and fly upward the operating environment that causes and the reduction of visibility etc. because of this because of this.

It is central circular that each plate 44～46 is with fulcrum 15, is connected with threshing tube framework 47 at the bolt on fulcrum 15 equidistant positions of its outer circumferential side.That is to say that at the outer circumferential side of each plate 44～46, according to upwards separate the state outfit six roots of sensation threshing tube framework 47 that certain intervals is arranged in its week, the tube diameter of threshing tube 16 increases.Thus, can prevent to gather in the coiling of the relative threshing tube 16 of straw.

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

On each threshing tube framework 47, be equipped with a plurality of installing

hole

47A, 47B that threshing tooth 48 can be installed, they are on its fore-and-aft direction the state of arranging with a determining deviation P, and be from the front end of threshing tube framework 47 to the center of the installing hole 47A of forefront distance L 1 and from the rear end of threshing tube framework 47 to the end the distance L 2 at the center of the installing hole 47A of side the half pitch (state of=1/2P) difference is arranged.

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

That is to say, by being made as identical formation, each threshing tube framework 47 realized cost cutting, and, prevented that effectively more little just incidental more, the handled thing of winding of the relative threshing tooth 48 of straw in the handled thing of resulting from the interval of adjacent threshing tooth 48 from stopping up, simultaneously, can improve the threshing performance by the cycle that increases 48 pairs of handled things of threshing tooth.

And, by being equipped to, each threshing tube framework 47 can will become common posture and upset posture towards change, more become significant occasion in long-term use being arranged in the wearing and tearing of handling the threshing tooth 48 of direction upstream side because of the many threshings more easy to wear of handled thing amount, by change each threshing tube framework 47 towards, the position of a plurality of threshing teeth 48 that can at one stroke each threshing tube framework 47 be possessed changes over threshing more easy to wear and handles the threshing tooth 48 of direction upstream side and the state of threshing tooth 48 exchanges that the direction downstream is handled in nonabradable threshing.The threshing tooth 48 in threshing processing direction downstream that thus, can wearing and tearing are few effectively utilizes as the threshing tooth 48 of the many threshing processing direction upstream sides of handled thing amount.

Four (each two of front and back) installing hole 47A of the rear and front end portion that is positioned at each threshing tube framework 47 among a plurality of installing hole 47A, the 47B form than the little diameter of installing hole 47B that is positioned at pars intermedia.

The threshing tooth 48A that the installing hole 47A that utilizes minor diameter in each threshing tooth 48 installs inserts the pole steel with the level that lead in the minor diameter 48a of installing hole 47A and constitutes by possessing, be centered close to mode on the line at center of center by fulcrum 15 and threshing tube framework 47 with it, nut is fixed on the threshing tube framework 47 dismantledly.

The threshing tooth 48B that utilizes the installing hole 47B of pars intermedia to install is made of wheel chair access pole steel, is centered close to mode on the line at center of center by fulcrum 15 and threshing tube framework 47 with it, and welding is not on threshing tube framework 47 not detachablely.

That is to say, each the threshing tooth 48A that is positioned at the rear and front end portion of threshing handling part 42 can install and remove, so, even if these threshing teeth 48A passed through threshing tube framework 47 towards changing the still occasion of noticeable wear under long-term the use, can be replaced by new threshing tooth 48A simply.

In addition, handle the direction downstream in the threshing that threshing straw amount is many, as shown in Figure 10, if the words that are equipped with the state that pulls out the threshing tooth 48A that is positioned at threshing tube 16 rearward end, then the interval of the threshing tooth 48A of threshing tube rear end portion becomes big, can suppress to result from the delay of threshing straw of hook of the threshing tooth 48A of relative threshing tube rear end portion effectively.Its result can promote the discharge of threshing straw from row's stalk mouth 18.

As Fig. 3～5, Figure 11 (a) and (b) and as shown in Figure 12, top board 24 one be equipped with roughly bend 24A along the rotational trajectory K bending of threshing tooth end, be positioned at this bend 24A the rear and front end semicircle shape longitudinal wall part 24B and be positioned at side edge part 24C of the linearity about bend 24A etc.Top board 24 constitutes, and is fulcrum with a plurality of hinge 24D of being possessed of side edge part 24C in its left side, can from above cover between the open position of upper side of the closed position of upper side of threshing tube 16 and unlimited threshing tube 16 and open and close swinging operation.On the side edge part 24C on right side, be provided with the fixing a plurality of bolt 24E of top board 24 of closed condition.

Bend 24A is bent to form, so that accept net 17 swimmingly to the rotation of following threshing tube 16 and the handled thing channeling conduct that transports towards threshing tube 16 tops by its inner surface towards the below.On the inner surface of bend 24A, according on fore-and-aft direction, separate set spaced state dismantledly fixed equipment a plurality of dirt valves 49 that send, this send dirt valve 49 to follow the spinning movement of threshing tube 16 and the handled thing that will be transported to the top of threshing chamber 14 is handled the guiding of direction downstream towards threshing.A plurality of dirt valve 49A that send of forefront in the dirt valve 49 that send form the circular-arc of side edge part 24C from the longitudinal wall part 24B of front side to the left side, and other the dirt valve 49B that send forms the circular-arc of side edge part 24C about striding.

That is to say, by on top board 24, being equipped with bend 24A, can make the handled thing of having taken off the top that is delivered to threshing chamber 14 by a plurality of threshing tooth 48 grades with the rotation of threshing tube 16 carry on one side or send dirt valve 49 in the inner surface of bend 24A, towards what threshing handled direction downstream below accept net 17 swimmingly channeling conduct on one side.In addition, side edge part 24C by will respectively sending dirt valve 49 to form to arrive the left side or about long size circular-arc of side edge part 24C, can improve effectively and respectively send dirt valve 49A guiding function rotating the handled thing that is transported to threshing chamber 14 tops with threshing tube 16.Thus, each threshing tooth 48 not only can be formed the shape that possesses the effect that handled thing is carried, and can form and be fit to carry out threshing dedicated shape that the strike or the comb of handled thing are gone into, simultaneously, can handle the direction downstream towards threshing well carries and the boot process thing, its result can realize the threshing performance of handled thing and the raising of transportation performance.

About side edge part 24C on, bolt is connected with the seaming component 50 of steel plate system dismantledly, this seaming component 50 is bent to form the guide surface 50a that is to have the inner surface of polyphone bend 24A and accepts the inner surface of net 17.Like this, thereby owing to constitute dismantledly with the seaming component that contacts fierceness 50 of handled thing at the seam crossing of accepting between net 17 and the top board 24, so, this seaming component 50 because of with the occasion that contacts noticeable wear of handled thing, can only change seaming component 50 simply.That is to say, for example can not cause suitably to carry out disposal at the wearing and tearing of seaming component 50 as this seaming component 50 will more not changed the unfavorable of such trouble of whole top board 24 and economic aspect together with the seaming component 50 of wearing and tearing the occasion of welding on top board 24 not detachablely.

In addition, at the terminal of each threshing tooth 48 with respectively send between the lower edge of dirt valve 49, good and be set with little gap in order to make the guiding of sending 49 pairs of handled things of dirt valve.And, at the terminal of each threshing tooth 48 with accept between the inner surface of net 17, leak down from accepting net 17 in order to promote simple grain grain, be set with than the end that is set in each threshing tooth 48 and respectively send big gap, gap between the lower edge of dirt valve 49.

As Fig. 3, Fig. 4, Fig. 6～8 and as shown in Figure 10, in threshing tube 16, be grilled on the outer peripheral face of portion 41 at it, the welding of shape ground has two support plate 41A in the shape of a spiral.And on the back side of these support plates 41A, bolt is connected with corresponding helical blade 43 dismantledly, and the outer edge side that presents them also will be to the side-prominent state of foreign side than the outer rim of corresponding support plate 41A.

That is to say, in this threshing tube 16, supply with the harvesting straw that is delivered to supply port 25 by feeder 13 and be grilled into conveying towards the rear along with the rotation of threshing tube, contact and the easy wearing and tearing that result from this contact thereby two helical blades 43 and harvesting straw be fierce, these two helical blades 43 are equipped in the portion that is grilled into 41 of threshing tube 16 dismantledly, thus, make the occasion of each helical blade 43 noticeable wear through long-term the use, can only change simply helical blade 43.Its result, for example can not cause suitably to carry out disposal at the wearing and tearing of helical blade 43 as this helical blade 43 will more not changed the unfavorable of such trouble of the portion of being grilled into 41 or economic aspect together with the helical blade 43 of wearing and tearing the occasion of welding in the portion of being grilled into 41 not detachablely.

In addition, each support plate 41A utilizes front surface of striding them and a plurality of ribs 41B that are grilled into the outer peripheral face ground welding of portion 41 to be strengthened.

As Fig. 3, Fig. 4, Fig. 6, Figure 13 and as shown in Figure 14, in sheller unit 5, at its antetheca 26 with accept to be equipped with between the net 17 and carry aid in guide part 51, this conveying aid in guide part 51 is accepted by feeder 13 and is supplied with the harvesting straw that is delivered to supply port 25, the auxiliary harvesting straw that is undertaken by two helical blades 43 be grilled into conveying.Carry aid in guide part 51 by cover from the below lower side that is grilled into portion 41, bolt connects into to face and is when watching roughly that pair of right and left guide member 51A, the 51B of U font constitute.About guide

member

51A, 51B constitute by following manner, promptly, on the first plate 51a of the stainless steel on the pair of right and left supporting frame 52 on the top of antetheca 26 that is provided to sheller unit 5 and sheller unit 5, welding forms the second plate 51b from the antetheca 26 of sheller unit 5 to the stainless steel of the guide surface of accepting net 17 before and after bolt dismantledly is connected.

That is to say, in this sheller unit 5, owing to being grilled into of the harvesting straw that undertaken by two helical blades 43 carried assist, carry aid in guide part 51 to contact with the harvesting straw is fierce, and then take place easily to contact the wearing and tearing that produce because of this, to carry aid in guide part 51 to be equipped to the form that to install and remove, and, with its constitute can about cut apart about two segmenting structures, promptly, be positioned at threshing tube 16 the direction of rotation upstream side the left side guide member 51A and be positioned at the guide member 51B on right side in the direction of rotation downstream of threshing tube 16, thus, because of the long-term occasion of using feasible conveying aid in guide part 51 whole noticeable wears, can only change simply and carry aid in guide part 53.In addition, because of long-term any one the guide member 51A of the left and right sides in the feasible conveying aid in guide part 51, the occasion of 51B noticeable wear used, can only wearing and tearing significant guide member 51A, 51B more be changed.Its result, even if for example can not cause as will carry aid in guide part 51 not detachablely welding accept net 17 and about supporting frame 52 grades on occasion will together with carry aid in guide part 51 more change to accept net 17 or left and right sides supporting frame 52 or as inseparable cede territory to constitute the occasion of carrying aid in guide part 51 carry aid in guide part 51 about also to change the unfavorable of such trouble of whole conveying aid in guide part 51 or economic aspect during any side noticeable wear, can suitably carry out disposal at the wearing and tearing of conveying aid in guide part 51.

And, are the strong high-strength stainless steels of corrosion resistance owing to carry aid in guide part 51, so can reduce the replacing frequency that causes because of wearing and tearing.

As Fig. 3, Fig. 5, Fig. 6 and as shown in Figure 15, accepting net 17 accepts net means 53 and constitutes the supporting frame 52 about bolt is connected in dismantledly by forming identical shaped four.Respectively accepting on the net means 53, be equipped with skeleton construction to become the base frame 53A of rectangle.In the frame of base frame 53A, according to the state that upwards separates certain intervals the week at threshing tube 16, front and back are arranged to ground and are being equipped with a plurality of taeniae 53B that are made of banded steel plate.And, according to the state that on fore-and-aft direction, separates certain intervals as 16 direction of principal axis of threshing tube, about arrange to ground and to be equipped with a plurality of first horizontal stripe 53C that constitute for circular-arc banded steel plate by being bent to form.And then, between the first horizontal stripe 53C of adjacency, according to the state that on fore-and-aft direction, separates certain intervals, about arrange to ground and to be equipped with a plurality of second horizontal stripe 53D that constitute for circular-arc piano wire rod by being bent to form.And, set the configuration space of each bar 53B～53D, make mesh in the frame that is formed at base frame 53A present along the length on the circumferential direction of threshing tube 16 than along the long rectangle of growing crosswise of the length on the direction of fore-and-aft direction.

That is to say; consider threshing tube 16 be activated and the threshing of rotating when handling, by this situation that on its direction of rotation, flows with the rotation of threshing tube 16 such as the simple grain grain of handling gained at the threshing of harvesting straw, constitute its mesh and be the rectangle of growing crosswise long on the direction of rotation of threshing tube 16 accepting net 17.Thus, constitute threshing that its mesh is presented on threshing tube 16 and handle the occasion that direction (fore-and-aft direction) goes up the rectangle of long lengthwise and compare with accepting net 17, simple grain grain etc. are easier to leak down from the toe lateral of accepting net 17.Its result can suppress effectively owing to the generation of leaking down be suppressed the decortication grain that cause of simple grain grain from the toe lateral of accepting net 17.And, form identical shape by will respectively accepting net means 53, yielding ability or the assembleability of accepting net 17 are improved.

As Fig. 3 and as shown in Figure 16, the primary dcreening operation 31 that ragging is used is made of single sorting plate 54, and this sorting plate 54 is to be connected on the screen box 29 by the offside inclination attitude bolt that rises backward in the top in its sorting direction downstream more.

In the toe lateral of sorting plate 54 (about 1/3 zone whole relatively sorting plate 54, the front side), overlook leak down staggered hole 54A between of hole 54A of leaking down that watches rectangular a plurality of hole 54A of leaking down to arrange forming rank rear in the prostatitis.In the rear portion side of sorting plate 54 (about 2/3 zone whole relatively sorting plate 54, rear side), have hole 54B, 54C staggered between hole 54B, the 54C of leaking down of leaking down that overlooking of branch chip select 54a, 54b watches rectangular a plurality of leak down hole 54B, 54C to arrange forming rank rear in the prostatitis.

The branch chip select 54a of the left and right sides center side that is positioned at sorting plate 54 among each minute chip select 54a, the 54b, being stamped, it is narrow more and more by the squamous of top by its sorting direction downstream width to form more.And be positioned at the branch chip select 54b at the two ends, the left and right sides of sorting plate 54, being stamped forms the size rectangle shorter than the branch chip select 54a of left and right sides center side, more by its sorting direction downstream more by the top.

That is to say, owing to constitute the primary dcreening operation 31 that ragging is used with single sorting plate 54, arrange the occasion etc. that be equipped to the form that on fore-and-aft direction, separates certain intervals and constitute primary dcreening operation 31 with a plurality of sieve lips (チヤ Off シ one プ) that for example will constitute by banded steel plate and compare, can realize the simplification that constitutes and the reduction of cost.

And; form the hole 54A that leaks down that does not possess branch chip select 54a, 54b by toe lateral, become many from the toe lateral of primary dcreening operation 31 grain pan 33 or the simple grain grain that leaks down of grain sieve 34 downwards at the primary dcreening operation 31 of supplying with the high sorting process thing of simple grain grain containing ratio.Its result can improve the rate of recovery of the simple grain grain of a recoverer 21 that is positioned at grain pan 33 or grain sieve 34 belows.

And, be staggered ground by rear portion side and arrange leak down hole 54B, the 54C that formation possesses branch chip select 54a, 54b all around at primary dcreening operation 31, in sieving sorting process, the sorting process thing on the primary dcreening operation 31 can not setovered on left and right directions but be distributed uniformly.Thus, can promote simple grain grain leaking down from respectively leak down hole 54B, 54C.

And then, by inclination attitude equipment primary dcreening operation 31, compare with the occasion of equipping primary dcreening operation 31 with flat-hand position to raise backward, in sieving sorting process, the power that primary dcreening operation 31 is surveyed the sorting process thing towards sorting process direction upstream top is released becomes big.Thereby; when sieving sorting process, the sorting process thing is inhibited towards the conveying in sorting direction downstream, simultaneously; moving up and down of sorting process thing becomes fierce; can more effectively carry out the difference in specific gravity sorting of sorting process thing, thereby, heavy grain leaking down promoted from respectively leak down hole 54B, 54C; and; can suppress simple grain grain effectively and be discharged to the generation of losing for three times outside the machine from outlet 23, its result can realize the raising of grain organic efficiency.

In addition, it is shorter than the branch chip select 54a of left and right sides center side to form size by the branch chip select 54b with the two ends, the left and right sides of primary dcreening operation 31, and the hole 54C that leaks down that can promote grain etc. to pile up the both ends, the left and right sides of sorting process thing easily from primary dcreening operation 31 leaks down.Its result can avoid resulting from reduction accumulation, the efficiency of separation of sorting process thing at both ends, primary dcreening operation 31 left and right sides.

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

In addition, also can form a plurality of hole 54C of leaking down with the staggered arrangement of leaking down between the 54C of hole of hole 54C of leaking down of rank rear in the toe lateral of sorting plate 54 in the prostatitis, this hole 54C that leaks down form overlook when watching rectangular, the rectangular sort sheet 54b with short size.

Set for as shown in Figure 3,, flow towards second plate 45 of threshing tube 16 through being formed on the wind path R4 in the screen box 29 from the sorting wind that passes through epimere wind path R1 in the sorting wind of windmill 20.Thus, can around threshing tube 16, the wind-force conveying have been stoped the handled thing that flows from the direction downstream to threshing that handle by second plate 45.Its result can avoid handled thing to handle in the accumulation of the position nearby of second plate 45 and to threshing and bring obstacle.

As Fig. 3 and as shown in Figure 6, the threshing tooth 48A that is positioned at its rear end in the threshing tube 16 is positioned at the rear of accepting net 17 rear ends and in the face of row's stalk mouth 18.That is to say,, do not accept net 17, so become the state that around it, has formed than large space owing to do not exist in the rear end of threshing tube 16.Thus, even the threshing straw is wrapped on the threshing tooth 48A of threshing tube rear end, this threshing straw also can be under the centrifugal action that the rotation of following threshing tube 16 produces and deviate from from the end of this threshing tooth 48A.Its result can suppress the delay of the threshing straw that causes at threshing tube 16 rear ends relative threshing tooth 48A hook owing to the threshing straw effectively, can promote the discharge of threshing straw from row's stalk mouth 18.

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

[integral body of dividing box constitutes]

Figure 17 shows as gearbox 101 example of the dividing box that is suitable for air-breather of the present invention, that use in full feeding type combine.

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

This gearbox 101 hydrostatic formula stepless speed change device (HST) 105 that side connects and supporting is made of other case at an upper portion thereof, lower side is by axletree 106 supportings.

Hydrostatic formula stepless speed change device 105, above the dividing box unit bodies 102 in dividing box unit bodies 102,102 to the left and right on the extended axle support 121, insert power shaft 150 logical and pump driving shaft one, thereby gearbox 101 is bearing in the upper end of gearbox 101.Be located at input on the above-mentioned power shaft 150 relatively with belt wheel 151, transmit and the power of the driving system that the power branch of operating system gets out from engine (figure is outer) with the band kind of drive.

Hydrostatic formula stepless speed change device 105 be inserted in the top of gearbox 101 with the output shaft 152 of motor drive shaft one, the power crossed by hydrostatic formula stepless speed change device 105 speed changes of the gears input in the gearbox 101 relatively.Transmit from hydrostatic formula stepless speed change device 105 power that comes by equipment in the gearbox 101 as the secondary gear 113 of gear with two grades of gear graduations of height, afterwards, via about the axletree 106 of sidepiece clutch 114 branches about being passed to, crawler travel device output to the left and right.

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

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

On the central portion of the left and right sides of jackshaft 162, the loosening chimeric central gear CG that is supported with, this central gear CG is by major diameter change-speed gearing G5 that can be engaged in above-mentioned small diameter gear G3 and integrated the forming of minor diameter change-speed gearing G6 that can be engaged in above-mentioned gear wheel in large diameter G4.

By making small diameter gear G3 and major diameter change-speed gearing G5 select engagement change gear SG right-hand moving in figure, and present " low speed ", by being moved, change gear SG left in figure make gear wheel in large diameter G4 and minor diameter change-speed gearing G6 select engagement, and present " at a high speed ", by shelves gear SG being moved to not the centre position with central gear CG engagement, and present " neutrality ".

Being equipped with on first 161 the axle supporting position of change gear SG, be equipped with parking brake PB.This parking brake PB stops the rotation of change gear SG and the transmission downstream is fixed.

About jackshaft 162, can on axis direction, become flexible the chimeric clutch gear G7 that constitutes sidepiece clutch 114 that is supported with slidably, simultaneously, the loosening chimeric a pair of output gear G8 that meshes with each clutch gear G7 that is supported with on second 163.

By clutch gear G7 is inwardly slided, become " clutch " state with the internal-gear G9 engagement that is formed on above-mentioned central gear CG center, by clutch gear G7 is outwards slided, then become " clutch disconnection " state that breaks away from from above-mentioned internal-gear G9.All the time be installed in 168 couples of each clutch gear G7 of spring on the jackshaft 162 towards " clutch " direction slip application of force by outer embedding.Clutch gear G7 constitutes the form of big width, and any one state that is in " clutch " and " clutch disconnection " all meshes with output gear G8 all the time.

Each output gear G8 is connected with the loosening chimeric middle small diameter gear G10 one that is supported on second 163, and, in the middle of each small diameter gear G10 respectively with the large diameter reduction gearing G11 engagement that is fixedly installed in each axletree 106 medial end, the axletree 106 about the dynamic retarding that takes out from each output gear G8 is passed to.

Near the left and right end portions of jackshaft 162, be provided with the sidepiece brake SB that acts on above-mentioned clutch gear G7.This sidepiece brake SB is made of many plates friction brake, this many plates friction brake by make with the friction plate 175 of shaft hub 169 peripheral snap and with rigid bearing case 176 in the friction plate 177 of Zhou Kahe on axis direction, alternately overlap and form, further outwards slide the friction plate 175,177 that operation panel 171 crimping overlap and to clutch gear G7 enforcement friction catch by making clutch gear G7 surpass " clutch disconnections " position.

[formation of air-breather]

At the interior position, top of loading onto the gearbox 101 of stating gear, shown in the key diagram of Figure 19 and Figure 20, like that, equipped air-breather 104 of the present invention.

The outer wall 122 of the upper side of each dividing box unit bodies 102 and next door 123 about being provided with, this next door 123 is used to utilize the idle space that produces between in its vicinity the drive disk assembly of outer wall 122 and configuration (that is, above-mentioned output shaft 152 and first 161, also have around gear class that these set etc.) and together constitutes expansion chambers 140 with above-mentioned outer wall 122.

Being located at the above-mentioned expansion chambers 140 of each dividing box unit bodies 102 opens wide in involutory surface 120 sides of gearbox 101, center on by above-mentioned next door 123 at other position, so as to constitute by zoning become with respect to the oil measures in the gearbox 101 deposit space 110, promptly for above-mentioned various gears etc. to be immersed in the cell that the space of adorning in the state in the lubricating oil is sealed shape.

Above-mentioned expansion chambers 140 on each dividing box unit bodies 102 about being located at is separated by the seal on the involutory surface 120 that is located at gearbox 101 about 103, be positioned at the wherein bottom side of the first expansion chambers 140a of a side, facing the little connected entrance 141 that forms ventilation usefulness on the part of involutory surface 120 by notch.Being located in another second expansion chambers 140b of the dividing box unit bodies 102 of the opposition side of above-mentioned seal 103, be provided with horizontal expelling tube as the blow vent 142 that allows to be communicated with extraneous gas.

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

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

The air-breather 104 of Gou Chenging constitutes shown in arrow among Figure 19 like that to carry out the row of giving of air like this.

That is to say that when the pressure that the oil measure below making owing to the rising of oil temperature or the inclination of body etc. is deposited the gas of space 110 sides increased, gas was press-fit into the first expansion chambers 140a above it by little connected entrance 141.

At this moment, among the first expansion chambers 140a up,, deposit space 110 thereby can from inflow gas, remove oil content to a certain degree and make it be back to oil measure from above-mentioned little connected entrance 141 to reduce pressure than little connected entrance 141 spaces capacious.

And, when the interior pressure of the above-mentioned first expansion chambers 140a increased, gas flow into the second expansion chambers 140b of opposition side via the intercommunicating pore 130 of seal 103, obtained decompression by big space again, after further reducing oil content, flow out to the outside from above-mentioned blow vent 142.

Though the oil that is not formed for making portion within it to produce because of gas-liquid separation on the above-mentioned second expansion chambers 140b turns back to the path that oil measure is deposited space 110, but because most oil content before was removed in the first expansion chambers 140a side, so the possibility of storing big gauging in the second expansion chambers 140b side is very little.

In storage the occasion of big gauging is arranged, attract to discharge from the outside, perhaps when carrying out gearbox 101 whole maintenances, case decomposed to discharge and get final product as long as above-mentioned blow vent 142 is opened.

On the expelling tube that constitutes above-mentioned blow vent 142, be connected with the side-prominent upward breather pipe 143 that bends to semicircle shape.Why connecting so outstanding crooked breather pipe 143, is in order to stop water to be invaded from the outside to gearbox 101 sides when the cleaning of body.

As described above, above-mentioned air-breather 104 is provided in by on the gearbox 101 that is engaged the partition type that a plurality of dividing box unit bodies 102,102 form each other by involutory surface 120, the expansion chambers 140 (140a, 140b) that the integrally formed respectively cell that is opened wide by involutory surface 120 sides constitutes on each dividing box unit bodies 102,102 of involutory surface 120 both sides, formation is deposited the little connected entrance 141 that space 110 is communicated with the oil measure in the dividing box in a side expansion chambers 140a, simultaneously, the expansion chambers 140b the opposing party is equipped with blow vent 142.And folder is established seal 103 and at expansion chambers 140a, the 140b of involutory surface 120 punishment every both sides on above-mentioned involutory surface 120, simultaneously, on sealing part 103, form intercommunicating pore 130, ventilate towards the expansion chambers 140b side that possesses above-mentioned blow vent 142 from depositing the expansion chambers 140a that space 110 is communicated with allowing with above-mentioned oil measure.

According to above-mentioned formation, when constituting the gearbox 101 of partition type, only, just can utilize the seal 103 that must be installed in case involutory surface 120 places to constitute air-breather 104 by integrally formed expansion chambers 140 (140a, 140b) in inside.

Therefore, need not to add special parts, just can constitute air-breather, can realize that cost reduces with simple formation with labyrinth structure or expansion chambers as air-breather.

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

According to above-mentioned formation, outer wall 122 by utilizing each dividing box unit bodies 102 upper side and set between in its vicinity the drive disk assembly, so-called idle space forms expansion chambers 140 (140a, 140b), need not the shape change of gearbox 101 integral body or dimension modifying etc., just can constitute the air-breather 104 of high functionality compactly.

[other embodiments]

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

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

(2) as threshing tube 16, both can not possess the portion of being grilled into 41, also can be equipped with whole broach or threshing tooth 48 but not helical tooth 43 in the portion of being grilled into 41.

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

(4) in threshing tube 16, the equipment quantity of threshing tube framework (bar-like member) 47 can be carried out various changes, for example can equip eight threshing tube frameworks 47.

(5) in threshing tube 16, can also with can not change towards mode a plurality of threshing tube frameworks (bar-like member) 47 are fixedly mounted on each plate 44～46.

(6) all threshing tooth 48 weldings that bar-like member 47 can be equipped are fixed on the bar-like member 47, perhaps can install and remove the ground bolt and be connected in bar-like member 47.

(7) the threshing tooth 48 of all threshing teeth 48 that bar-like member 47 can be equipped or a part forms and has the foliaceous of the threshing handled thing being handled the guide surface of direction downstream guiding towards threshing along with the rotation of threshing tube 16, perhaps be bent to form font into L, so that have function as guide portion, that is, along with the rotation of threshing tube 16 is handled the guiding of direction downstream with the threshing handled thing towards threshing.

(8) as threshing tooth 48, can adopt square rod steel or pipe material etc., perhaps can adopt the material that is bent to form to U font or V font.

(9) configuration space as threshing tooth 48 can carry out various changes, for example be made as the occasion of 3 multiple in equipment quantity with threshing tube framework (bar-like member) 47, be configured setting, make each threshing tooth 48 be positioned in the stagger state of 1/3 spacing of the threshing tooth of being equipped with adjacent threshing tube framework (bar-like member) 47 on the fore-and-aft direction 48, perhaps, be made as the occasion of 4 multiple in equipment quantity with threshing tube framework (bar-like member) 47, be configured setting, make each threshing tooth 48 be positioned in the stagger state of 1/4 spacing of the threshing tooth of being equipped with adjacent threshing tube framework (bar-like member) 47 on the fore-and-aft direction 48.Perhaps, for example also forwardly side set the configuration space of threshing tooth 48 different with rear portion side so that make the front and back of threshing tooth 48 of rear portion side at interval big at interval than the front and back of the threshing tooth 48 of toe lateral.

(10) partition member 45 can carry out various changes at aspects such as its formation, shape or equipment quantity, for example can constitute partition member 45 with circular porous plate, perhaps, can constitute partition member 45 with the attaching parts of the distolateral ring-type of a plurality of bar-shaped extension component that extends to each bar-like member 47 from fulcrum 15 and the extension that is connected each extension component.And, also partition member 45 can be formed more the shape such as coniform of handling the downstream, rear by its outer circumferential side more by threshing, constitute to have the threshing handled thing is guided to function around the threshing tube 16, perhaps can on threshing tube 16, possess a plurality of partition members 45.

(11) but also equipped with dedicated play wind apparatus (for example windmill), handle the wind that the direction upstream side flows towards partition member 45 in order to produce from the threshing of relative partition member 45.

The shorter length of all side edge part 24C that send the left and right sides either party that dirt valve 49 forms no show top board 24 that send a dirt valve 49 or a part that (12) top board 24 can be equipped or left and right sides both sides' side edge part 24C.

(13) can carry out the movable manner that aperture is regulated corresponding to the threshing handled thing amount in the threshing chamber 14 with sending dirt valve 49 to constitute, close threshing efficiency with further raising threshing performance.

(14), can form the rotational trajectory K bending that its bend 24A draws along threshing tooth 48 ends as top board 24.In addition, alternative bend 24A constitutes and has the bend that is bent to form in the mode that covers the upper side of threshing tube 16 from the top.

(15) as threshing tube 16, its threshing handling part 42 can be by constituting drum type brake with lower member: form tube cylindraceous portion; Be equipped in two conveyor screws of portion's periphery in the mode that links to each other with two helical blades 43 that the portion of being grilled into 41 is possessed; And, to separate a plurality of threshing teeth etc. that set interval is equipped in each spirochetal peripheral part dismantledly towards the outstanding state of foreign side.

(16) as threshing tube 16, can be on the outer peripheral face of its leading section 41 single helical blade 43 be installed in mode that can dismounting, perhaps, can in mode that can dismounting helical blade 43 more than three be installed on the outer peripheral face of its leading section 41.

(17) as threshing tube 16, can be on the outer peripheral face of its leading section 41, shape ground is arranged and is equipped with a plurality of supporting metalworks that helical blade 43 is installed removably in the shape of a spiral.

(18) as helical blade 43, can be on the outer peripheral face of threshing tube leading section 41 in the shape of a spiral shape ground arrange and be equipped with a plurality of leaf shape parts and constitute.

(19) as carrying aid in guide part 51, both can constitute can not about cut apart, also can constitute and can be divided into more than three parts.

(20) as carrying aid in guide part 51, can constitute the part 51B that only is positioned at threshing tube 16 direction of rotation downstreams and can carry out dismounting.

(21), can adopt stainless steel steel such as carbon steel in addition as the raw material of carrying aid in guide part 51.

(22), can adopt to be installed in the mode of accepting on the net 17 as seaming component 50 with installing and removing.

(23) in the above-described embodiment, expansion chambers 40 is arranged on the outer wall that is formed at each dividing box unit bodies 2 upper side and sets in the space between in its vicinity the drive disk assembly, but be not limited to this, so long as deposit the predetermined high position of fuel head in the space 10, then can select suitable position to set than oil measure.

(24) the little connected entrance 41 that is formed at the first expansion chambers 40a is not limited to an end open cuts such shown in the embodiment, it also can be the suitably mouth of shape such as circular hole, offer the position for it, so long as can deposit the position of space 10 discharging and just can freely set with being stored in indoor oil oil measure downwards.

(25) dividing box for than two cut apart Duo for example three cut apart above occasion, can form expansion chambers 40 respectively at involutory surface 20 position in opposite directions with each segmentaion position, and clamp the seal 3 that has intercommunicating pore 30, constitute air-breather 4 with the labyrinth structure more than three sections.

Claims

1. a sheller unit possesses by for fulcrum is driven in rotation the harvesting straw that supplies to threshing chamber (14) being implemented the threshing tube (16) that threshing is handled with fulcrum (15), it is characterized in that,

Above-mentioned threshing tube (16) comprises a plurality of bar-like members (47), support unit (44,46) and a plurality of threshing tooth (48), and above-mentioned a plurality of bar-like members (47) are upwards separating set outfit the week of above-mentioned threshing tube with the posture along above-mentioned fulcrum with being spaced; Above-mentioned support unit (44,46) is provided in the front and back of above-mentioned fulcrum, so that support these bar-like members; Above-mentioned a plurality of threshing teeth (48) are equipped on above-mentioned each bar-like member, arrange to separate set compartment of terrain towards the outstanding posture of the foreign side of above-mentioned threshing tube at fore-and-aft direction from above-mentioned bar-like member;

On above-mentioned threshing tube (16), be equipped with the partition member (45) that to separate before and after its inner space.

2. sheller unit as claimed in claim 1 is characterized in that, is equipped with the windmill (20) that produces 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 threshing tube (16) is covered by top board (24), be equipped with a plurality of dirt valves (49) that send on above-mentioned top board, these a plurality of rotations of sending dirt valve (49) to be accompanied by above-mentioned threshing tube drive and above-mentioned harvesting straw are handled the guiding of direction downstream to threshing.

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

5. sheller unit as claimed in claim 3 is characterized in that, above-mentioned top board (24) forms, roughly along rotational trajectory (K) bending of being drawn out by the end of above-mentioned threshing tooth (48) with the rotation of above-mentioned threshing tube (16).

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

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

7. sheller unit as claimed in claim 6, it is characterized in that, be provided with conveying aid in guide part (51) in the below of above-mentioned threshing tube (16), this conveying aid in guide part (51) is configured to cover from the below leading section of above-mentioned threshing tube, thereby accept towards the leading section of above-mentioned threshing tube and supply with the harvesting straw that transports, and auxiliaryly be grilled into conveying to what the harvesting straw carried out by above-mentioned helical blade;

Above-mentioned conveying aid in guide part (51) constitutes, and its part that is positioned at the direction of rotation downstream of above-mentioned threshing tube at least can dismounting.

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

Be equipped with top board (24) in the mode that covers above-mentioned threshing tube (16) from the top;

Accept between net (17) and the above-mentioned top board (24) above-mentioned, be equipped with seaming component (50) dismantledly, this seaming component (50) forms has the guide surface (50a) that the above-mentioned inner surface of accepting net and top board is contacted.