The utility model content
Even the purpose of this utility model be to provide a kind of after also can successfully discharging threshing under the situation of the long paddy stalk of harvesting crop from outlet the technology of paddy stalk etc.
First technical scheme of the present utility model provides paddy stalk discharge structure after a kind of threshing of full feeding type combine, the central shaft that has threshing cylinder can be bearing in the preceding wall body of formation threshing chamber and the shaft supporting part on the wall body of back rotatably respectively, with described threshing cylinder so that its rear end near the mode of described back wall body and according to front and back towards be erected at described before on wall body and the described back wall body, rear lower at described threshing chamber is formed with the outlet of being received harvested cereal culm that can discharge from described threshing chamber after threshing is handled, paddy stalk discharge structure is characterised in that after this threshing, is formed with protuberance on the wall body of described back.
In second technical scheme of utility model, preferably on the wall body of described back, form the back step that has or not the end.
In the 3rd technical scheme of utility model, preferably the part in the whole wall zone of described back wall body is set at outstanding outburst area backwards, on the wall body of described back, be formed with the back step that makes described outburst area outstanding backwards.
In the 4th technical scheme of utility model, preferably the part in the whole wall zone of described back wall body is set at outstanding outburst area backwards, on the wall body of described back, form the back step that makes described outburst area outstanding backwards, and the described rear wall bodily form becomes that the described relatively outburst area in the zone that disposes described shaft supporting part in the described whole wall zone is positioned at the front side and near the rear end of described threshing cylinder.
In the 5th technical scheme of utility model, preferably in the whole wall zone of described back wall body, at least be positioned at a plurality of threshing teeth that are arranged on highlightedly on the described threshing cylinder zone that the pivot of the outside of the rising rotational trajectory that described threshing tooth front end is described when mobile and described relatively threshing cylinder is positioned at downside of rising and be set to outstanding outburst area backwards, on the wall body of described back, be formed with the make described outburst area back step at the outstanding no end backwards, and the described rear wall bodily form becomes that the described relatively outburst area in the zone that disposes described shaft supporting part in the described at least whole wall zone is positioned at the front side and near the rear end of described threshing cylinder.
According to above technical scheme, even move to the top of outlet along with the rotation of threshing cylinder and be hung on the threshing tooth that moves that rises towards paddy stalk after the threshing that outlet flows down etc., if paddy stalk etc. breaks away from from threshing teeth directional centrifugal direction under the effect of centrifugal force and gravity after this threshing, then be moved to threshing and handle paddy stalk after the follow-up threshing in direction downstream etc. and be extruded into from the moving area of the threshing tooth inside of (the direction downstream is handled in threshing) back step of separating with big distance rearward, thus the influence of the threshing tooth that is not risen mobile and flowing down to outlet.
Consequently, under the situation of the long paddy stalk of harvesting crop, also can successfully discharge after the threshing paddy stalk etc. from outlet.
And, since at least the zone that disposes shaft supporting part in the whole wall zone of back wall body relatively outburst area be positioned at the front side and near the rear end of threshing cylinder, therefore, can prevent that paddy stalk after the threshing from entering between the rear end of threshing cylinder and the back wall body and be wrapped on the central shaft of threshing cylinder.
In the 6th technical scheme of utility model, on the basis of the arbitrary technical scheme in the 3rd to the 5th, preferably outside having, described back wall body is embedded in the rear end of described threshing cylinder to prevent to be received the discoid antiwind parts that harvested cereal culm twines described central shaft, in described whole wall zone, be positioned at the zone that described threshing tooth rises below the upper end of the lateral outer side that moves a side and described shaft supporting part relative to described antiwind parts and be set to described outburst area.
According to this technical scheme, paddy stalk etc. is also handled paddy stalk after the follow-up threshing of moving in the direction downstream etc. and is extruded into from the moving area of the threshing tooth inside of (the direction downstream is handled in threshing) back step of separating with big distance rearward to threshing after the threshing of extruding between the threshing tooth that rises mobile, thus the influence of the threshing tooth that is not risen mobile and flowing down to outlet.
Consequently, under the situation of the long paddy stalk of harvesting crop, can successfully discharge after the threshing paddy stalk etc. from outlet.
In the 7th technical scheme of utility model, on the basis of the arbitrary technical scheme in first to the 5th, preferably described back step is formed when fore-and-aft direction is seen rectangular.
According to this technical scheme, for example the situation of a part of back step bending is compared with the rising rotational trajectory that the threshing tooth front end that moves along rising is described, can guarantee space, and form back step simply than the back step of protruding segments field width.
That is, not only seek the simplification of structure, and, under the situation of the long paddy stalk of harvesting crop, also can successfully discharge after the threshing paddy stalk etc. from outlet.
In the 8th technical scheme of utility model, on the basis of the arbitrary technical scheme in the 3rd to the 5th, the lower end that preferably the described rear wall bodily form is become the rotational trajectory that the described relatively threshing tooth of its lower limb front end describes is positioned at the top, in described whole wall zone, the zone that the described lower limb of described relatively back wall body and the intersection point of described rising rotational trajectory are positioned at lateral outer side is set to described outburst area.
According to this technical scheme, be arranged in the zone of lateral outer side at the intersection point of the rising rotational trajectory of describing relative to the lower limb of back wall body and the threshing tooth front end move of rising, under the effect of centrifugal force and gravity from paddy stalk after the threshing that threshing teeth directional centrifugal direction breaks away from etc. and after the threshing of extruding between the threshing tooth that rises mobile paddy stalk etc., handled paddy stalk after the follow-up threshing of moving in the direction downstream etc. to threshing and be extruded into from the moving area of the threshing tooth inside of (the direction downstream is handled in threshing) back step of separating with big distance rearward, thus the influence of the threshing tooth that is not risen mobile and flowing down to outlet.
Consequently, under the situation of the long paddy stalk of harvesting crop, can successfully discharge after the more threshing paddy stalk etc. from outlet.
In the 9th technical scheme of utility model, on the basis of the arbitrary technical scheme in the 3rd to the 5th, preferably in described whole wall zone, the zone that is positioned at the outside of the rotational trajectory that described threshing tooth front end describes is set to described outburst area.
According to this technical scheme, zone in the outside that is arranged in the rotational trajectory that threshing tooth front end describes, under the effect of centrifugal force and gravity after the threshing that threshing teeth directional centrifugal direction breaks away from paddy stalk etc., handled paddy stalk after the follow-up threshing of moving in the direction downstream etc. to threshing and be extruded into from the moving area of the threshing tooth inside of (the direction downstream is handled in threshing) back step of separating with big distance rearward, thus the influence of the threshing tooth that is not risen mobile and flowing down to outlet.
Consequently, under the situation of the long paddy stalk of harvesting crop, can successfully discharge after the more threshing paddy stalk etc. from outlet.
In the tenth technical scheme of utility model, on the basis of first technical scheme, be embedded in the rear end of described threshing cylinder to prevent to be received the discoid antiwind parts that harvested cereal culm twines described central shaft outside preferably on the wall body of described back, having, in described whole wall zone, the zone that described relatively antiwind parts are positioned at the outside is set to described outburst area.
According to this technical scheme, be arranged in the zone in the outside at antiwind relatively parts, under the effect of centrifugal force and gravity from paddy stalk after the threshing that threshing teeth directional centrifugal direction breaks away from etc. and after the threshing of extruding between the threshing tooth that rises mobile paddy stalk etc., handled paddy stalk after the follow-up threshing of moving in the direction downstream etc. to threshing and be extruded into from the moving area of the threshing tooth inside of (the direction downstream is handled in threshing) back step of separating with big distance rearward, thus the influence of the threshing tooth that is not risen mobile and flowing down to outlet.
Consequently, under the situation of the long paddy stalk of harvesting crop, can successfully discharge after the more threshing paddy stalk etc. from outlet.
Embodiment
Below, explanation is used to implement an example of the mode of paddy stalk discharge structure after the threshing of full feeding type combine of the present utility model with reference to the accompanying drawings.
As depicted in figs. 1 and 2, in full feeding type combine, steel such as a plurality of square tubes are connected and composed vehicle frame 1, the right side area in vehicle frame 1 front portion is formed with takes Drive Section 2.In the bottom of vehicle frame 1 pair of right and left crawler type running device 3 is installed.The left side of vehicle frame 1 leading section with about towards the first axle center P1 be that the fulcrum liftable swingingly is connected with harvesting delivery section 4,4 harvestings of this harvesting delivery section are positioned at the paddy stalk of the crops such as water paddy and wheat in car body the place ahead when also operation is travelled in conveying.In the left side of vehicle frame 1 sheller unit 5 is installed, this sheller unit 5 receives and the harvested paddy stalk carried by harvesting delivery section 4 (below be referred to as to be received harvested cereal culm) is carried out threshing handle, and implements sorting process to handle the handled thing that obtains by threshing then.Right back portion at vehicle frame 1 is equipped with sack-filling device 7, and this sack-filling device 7 can be stored by conveying auger 6 from the simple grain grain and the grain bag of packing into that sheller unit 5 transports.
Take Drive Section 2 and on the front panel 8 that uprightly is arranged at its front end position, have the stalk 9 of manipulation etc.On the side panel 10 that uprightly is arranged at the left end position of taking Drive Section 2, have main transformer speed stalk 11 and secondary speed change stalk 12 etc.Dispose driver's seat 13 at the rear side position of taking Drive Section 2.With regard to handling stalk 9, if on left and right directions swinging operation, then turn to the manipulation device of usefulness to play a role as car body, if on fore-and-aft direction swinging operation, then play a role as the manipulation device of being used by the lifting of harvesting delivery section.
Left and right sides crawler type running device 3 constitutes, and according to handling the swinging operation of stalk 9 on left and right directions, is switched to left and right sides crawler type running device 3 and makes the straight line mobile status of constant speed movement and make differential mobile rotation status.
Along with travelling of car body, gathered in delivery section 4 and utilized the nearside divider 14 that is configured in its anterior two ends, the left and right sides, be not divided into paddy stalk and the harvesting object paddy stalk in addition that gathers in object with receiving harvested cereal culm.In addition, utilization is configured in by the swiveling wheel 15 of the front upper of harvesting delivery section 4, with the fringe tip side direction rear of harvesting object paddy stalk grab into, and utilize and be installed in by the hairclipper type of harvesting delivery section 4 bottoms taking root side and gathering in paddy stalk by reaping apparatus 16 cutting harvesting object paddy stalks as the harvesting object.Then, by being configured in the ceding of Taiwan auger 17 at reaping apparatus 16 rears, make and drawn close at the regulation position of left and right directions by harvested paddy stalk (below be referred to as to be received harvested cereal culm) and be transported to the rear, by set up the grabbing of sheller unit 5 from this regulation position, will be received harvested cereal culm and be supplied to sheller unit 5 into conveying-type conveying plant 18 (Off イ one ダ).
The lifting and swinging of harvesting delivery section 4 is undertaken by the expanding-contracting action that is erected at the lifting hydraulic cylinder 19 on vehicle frame 1 and the conveying plant 18.Lifting hydraulic cylinder 19 constitutes according to operation stalk 9 and carries out expanding-contracting action in the swinging operation of fore-and-aft direction.That is, handle stalk 9, make lifting hydraulic cylinder 19 carry out expanding-contracting action, can change the harvesting height adjustment etc. that reaping apparatus is not received the height and position of harvested cereal culm relatively thus by swinging operation on fore-and-aft direction.
To shown in Figure 7, sheller unit 5 has as Fig. 1: to supply with by conveying plant 18 received harvested cereal culm implement the 5A of threshing portion that threshing handles, to the handled thing of handling the sorting object that obtains by threshing is implemented the 5B of sorting portion of sorting process and the handled thing of the recycle object that will obtain by sorting process reclaims recoverer 5C.
The 5A of threshing portion constitutes: with the threshing cylinder 21 of circular rod type with front and back towards the second axle center P2 be fulcrum, mode to anticlockwise when seeing from behind is configured in the disengaging chamber 20 that is formed at sheller unit 5 tops.Be formed with and grab the supply port 22 of receiving harvested cereal culm into the quilt of conveying by conveying plant 18 to threshing chamber 20 supplies in the preceding bottom of threshing chamber 20.Be formed with at the rear lower of threshing chamber 20 and can discharge the outlet 23 of being received harvested cereal culm (below be referred to as threshing after paddy stalk) of threshings after handling from threshing chamber 20.Threshing chamber 20 covers the upper lid 26 on threshing cylinder 21 tops by the front end panel 24 that supports threshing cylinder 21 and rear bearing sheet 25, from the top and what cover threshing cylinder 21 from the below is that the separation such as net 27 of accepting of U-shaped forms when fore-and-aft direction is seen.
In the 5B of sorting portion, swing sorting mechanism 29 is configured in the below of accepting net 27, by making eccentric earn driving mechanism 28 work that are arranged on the 5B of sorting portion rearward end, this swing sorting mechanism 29 is swung on fore-and-aft direction and is carried out sorting.And, dispose sorting blower fan 30 in the front lower place of swing sorting mechanism 29, this sorting blower fan 30 with about towards the 3rd axle center P3 be fulcrum, when the left side is seen to anticlockwise, produce sorting wind thus.Swing sorting mechanism 29 carries out the sorting swing on one side, Yi Bian accept from accepting the handled thing that net 27 leaks down, thus the handled thing the accepted handled thing as the sorting object is screened.The sorting wind direction that sorting blower fan 30 will produce by its rotation is supplied with from the handled thing accepting net 27 and leak down with from the handled thing that swing sorting mechanism 29 leaks down, and by wind-force these handled things is carried out sorting as the handled thing of sorting object thus.
In recoverer 5C, recoverer 31 is formed on the below of the sorting direction upstream side of swing sorting mechanism 29, and, secondary recovery portion 32 is formed on the below in the sorting direction downstream of swing sorting mechanism 29.Being shaped as when seeing from the side of a recoverer 31 is wide at the top and narrow at the bottom, and guiding flows down to the bottom as the single treatment thing from the simple grain grain that the sorting direction upstream side of swinging sorting mechanism 29 leaks down.In the bottom of a recoverer 31, carry an auger 33 of usefulness towards disposing the single treatment thing about the edge, by this auger, the single treatment thing that flows to recoverer 31 bottoms is transported to the conveying auger 6 that is communicated with the right part of a flood dragon 33.Being shaped as when seeing from the side of secondary recovery portion 32 is wide at the top and narrow at the bottom, and the band stalk grain that guiding is leaked down from the sorting direction downstream of swing sorting mechanism 29 etc. flows down to the bottom as the after-treatment thing.Bottom in secondary recovery portion 32, carry the secondary auger 34 of usefulness towards disposing the after-treatment thing about the edge, by this secondary auger, the after-treatment thing that flows to secondary recovery portion 32 bottoms is transported to the secondary reduction mechanism 35 that is communicated with the right part of secondary auger 34.
Secondary reduction mechanism 35 has the after-treatment thing that is transported by secondary auger 34 is implemented the handling part again (not shown) that threshing is handled once more, will be by this after-treatment thing after handling part threshing is handled again carry and revert to swing sorting mechanism 29.
Extremely shown in Figure 7 as Fig. 3, the central shaft 36 that breaks away from cylinder 21 is erected on front end panel 24 and the rear bearing sheet 25, axle center with central shaft 36 is that the second axle center P2 is the center rotation, and grabbing portion 37 and threshing handling part 38 is that the center one is arranged on this central shaft 36 rotatably with the second axle center P2.
Grab the trunk part 39 that has circular cone shape into portion 37, be welded with two helical tooths 40 at the outer peripheral face of this trunk part 39.Thus, grab into portion 37 and constitute: with front and back towards the second axle center P2 be fulcrum when seeing from behind to anticlockwise, thereby by two helical tooths 40, whole harvested cereal culms of being received that will be transported by conveying plant 18, it is inner and supply to threshing handling part 38 and space S 1 is handled in the threshing accepted between the net 27 to grab threshing chamber 20 from supply port 22.In the end of the minor axis side of trunk part 39, the center as one man is welded with discoid antetheca parts 41.
Threshing handling part 38 has in discoid first wall components 43 and rear wall member 44 in the wall components 42, second.These wall components 42~44 are that the center is being welded on the central shaft 36 to be separated with the spaced state of setting on the fore-and-aft direction with the second axle center P2.Peripheral part at these wall components 42~44, with along the front and back of central shaft 36 towards attitude and decentre axle 36 have equidistant state, and on the circumferencial direction of threshing cylinder 21, be connected with a plurality of (for example six) threshing tooth support component 45 to be separated with the mode that certain intervals arranges.On each threshing tooth support component 45,, on fore-and-aft direction, dispose a plurality of threshing teeth 46 to be separated with the spaced mode of setting with the attitude of giving prominence to towards the outside of threshing cylinder 21 from threshing tooth support component 45.As threshing tooth support component 45, can adopt stalk shape parts such as pole steel, square rod steel, square tube steel, angle steel material, channel-section steel material.As each threshing tooth 46, can adopt stalk shape parts such as pole steel, square rod steel, pipe steel, square tube steel.
Promptly, the cage shape of threshing handling part 38 for having internal space S 2, this internal space S 2 with threshing handling part 38 with accept threshing between the net 27 and handle space S 1 and be communicated with, and, on the circumferencial direction and fore-and-aft direction of threshing handling part 38, the state configuration of proper alignment has side-prominent a plurality of threshing teeth 46 outwardly to be separated with the setting interval.
Thus, threshing handling part 38 with front and back towards the second axle center P2 be fulcrum when seeing from behind to anticlockwise, thereby at threshing handling part 38 and accept the harvested cereal culm of being received that threshing between the net 27 handles in the space S 1 and implement the strike of being undertaken by threshing tooth support component 45 and threshing tooth 46 and the comb that is undertaken by threshing tooth 46 and take off and wait the threshing processing, and allow to enter internal space S 2 by the handled thing that this threshing processing obtains, the handled thing of threshing being handled the handled thing of space S 1 and internal space S 2 stirs, and these handled things is implemented the strike of being undertaken by threshing tooth support component 45 and threshing tooth 46 and the comb that is undertaken by threshing tooth 46 take off and wait the threshing processing.
In addition, owing to have an internal space S 2, received harvested cereal culm in a large number, also this internal space S 2 can be handled with handling the space as threshing, therefore, can avoid handled thing to be trapped in and handle the space and handle the saturated of space even supply with to threshing chamber 20.Thus, can prevent from advance be detained because of handled thing and handling that the space is saturated does not fully carry out handled thing under the situation that threshing handles and take place from the situation of accepting net 27 and leaking down, prevent that perhaps threshing from handling required load and increasing and act on situations such as the transmission system of threshing cylinder 21 is impaired.
And, except a plurality of threshing teeth 46,, therefore, can seek to improve the threshing performance and break away from efficient because six threshing tooth support components 45 also play a role as the threshing processing unit that acts on the handled thing in the threshing chamber.
Wall components 42 is welded on the central shaft 36 at the front end of threshing handling part 38 in first, and, together be connected on the peripheral part of wall components 42 in first with the rear end of grabbing portion 37 by the end of bolt each threshing tooth support component 45.Wall components 43 is welded on the central shaft 36 at the front and back of threshing handling part 38 pars intermedia in second, is connected on the peripheral part of wall components 43 in second by the front and back pars intermedia of bolt with each threshing tooth support component 45.Rear wall member 44 is welded on the central shaft 36 in the rear end of threshing handling part 38, is connected on the peripheral part of wall components 43 in second by bolt the other end with each threshing tooth support component 45.
Each threshing tooth support component 45 constitutes towards variable, is divided into the opposite counter-rotating attitude of fore-and-aft direction that makes its fore-and-aft direction normal attitude consistent with the fore-and-aft direction of threshing cylinder 21 and make its fore-and-aft direction and threshing cylinder 21.So,, each threshing tooth support component 45 is connected in first in the wall components 42, second on the wall components 43 and rear wall member 44 by bolt so that the front and back of adjacent threshing tooth support component 45 are towards opposite mode.
Under opposite situation, each threshing tooth 46 is configured to the half pitch that staggers mutually between the threshing tooth 46 of adjacent threshing tooth support component 45 on fore-and-aft direction in the front and back that make adjacent threshing tooth support component 45.
As shown in Figure 3, dispose accessory plate 47 in the preceding bottom of threshing chamber 20, these accessory plate 47 admittances supply to the harvested cereal culm of being received of supply port 22, and auxiliary grabbing into portion 37 will be grabbed into supply to threshing processing space S 1 by the receipts harvested cereal culm.
Extremely shown in Figure 7 as Fig. 3; accept net 27 and accept net for cancellate concave surface; admittance supplies to threshing cylinder 21 and accepts threshing between the net 27 and handle and to be received harvested cereal culm in the space S 1; and the auxiliary threshing of being undertaken by the rotation of threshing cylinder 21 is handled; and; make by this threshing and handle simple grain grain and the band stalk grain that obtains; perhaps stalk bits that in threshing is handled, produce etc.; swing sorting mechanism 29 downwards leaks down; on the other hand, prevent after the threshing that paddy stalk etc. leaks down to swing sorting mechanism 29.
Upper lid 26 constitutes front end at the top board 48 with bend 48A and is welded on the front panel 49 and in the rear end of top board 48 and is welded on the squab panel 50, and wherein, bend 48A bloats more upward the closer to the position of left and right sides center side.And, upper lid 26 constitutes: by a plurality of hinges 52, the left part 48B of top board 48 is connected on the fixed frame 51 of the sheller unit 5 that a plurality of square tube steel etc. is connected and constitute, thus, can with front and back towards the 4th axle center P4 be that fulcrum carries out opening and closing operations.Have a plurality of fixtures 53 at the right part of top board 48 48C, by a plurality of fixtures 53 are threaded on the fixed frame 51, with the fixing upper lid 26 of the attitude of closure.Inside at bend 48A, on fore-and-aft direction, dispose a plurality of mobile controlling organizations (sending the Zhu man's cap used in ancient times) 54 to be separated with the spaced mode of setting, along with threshing cylinder 21 with front and back towards the second axle center P2 be fulcrum when seeing from behind to anticlockwise, these a plurality of mobile controlling organizations 54 are the paddy stalk after threshing is handled the guiding of direction downstream to move to the handled thing on threshing chamber 20 tops and threshing.
Front end panel 24 is welded on the upper front end of fixed frame 51 in the mode of the front panel 49 of the upper lid 26 of closed procedure of admitting.Rear bearing sheet 25 is welded on the upper rear end of fixed frame 51 in the mode of the squab panel 50 of the upper lid 26 of closed procedure of admitting.So wall body 55 before being made of the front panel 49 of front end panel 24 and upper lid 26 constitutes back wall body 56 by the squab panel 50 of rear bearing sheet 25 and upper lid 26.
At the left and right sides of front end panel 24 central portion, cut to central portion from its upper end and form recess (not shown), so that the central shaft 36 of threshing cylinder 21 can insert this recess from the top.Common fastening and be connected with the shaft supporting part 57 and the discoid antiwind parts 58 of rotatably mounted central shaft 36 at the central portion of front end panel 24, these antiwind parts 58 prevent to be received harvested cereal culm by the antetheca parts 41 that are embedded in threshing cylinder 21 outward and are wrapped on the central shaft 36.
At the left and right sides of rear bearing sheet 25 central portion, cut to central portion from its upper end and form recess 25A, so that the central shaft 36 of threshing cylinder 21 can insert this recess 25A from the top.Be fastenedly connected with the shaft supporting part 59 and the discoid antiwind parts 60 of rotatably mounted central shaft 36 jointly at the central portion of rear bearing sheet 25, these antiwind parts 60 prevent to be received harvested cereal culm by the rear wall member 44 that is embedded in threshing cylinder 21 outward and are wrapped on the central shaft 36.
The shaft supporting part 57 of front side is that portion has the bearing (not shown) of centre of support axle 36 or is used for transmission housing to bevel gear (not shown) of central shaft 36 transmissions etc. within it.The shaft supporting part 59 of rear side is the bearing bracket stand of bearing (not shown) the centre of support axle 36 by the portion of setting within it.
Threshing cylinder 21 with the state configuration of wall body before being set up in 55 and back wall body 56 in threshing chamber 20, so that the antetheca parts 41 that are arranged on its front end are near preceding wall bodies 55 and be embedded on the antiwind parts 58 of front side, and make the rear wall member 44 that is arranged on its rear end near back wall bodies 56 and be embedded on the antiwind parts 60 of rear side.
Supply port 22 form the portion of grabbing 37 that makes threshing cylinder 21 face before between first support component 61 of accepting net 27 leading sections of wall body 55 and the preceding bottom of supporting threshing chamber 20.The rear end part that outlet 23 forms the threshing handling part 38 that makes threshing cylinder 21 faces between second support component 62 of accepting net 27 rearward end of back wall body 56 and the rear lower that supports threshing chamber 20.
To shown in Figure 7, the discharge cover 63 of sheet metal system is configured in the rear end lower of sheller unit 5 as Fig. 1 to Fig. 3 and Fig. 5 in the mode that covers outlet 23 from the rear.Discharging cover 63 forms: the cover plate 65 that will be bent to form in the mode that possesses top plate portion 65A is welded on the left side plate 64 that is connected with fixed frame 51, paddy stalk etc. and the stalk bits that are transported to swing sorting mechanism 29 rears by screening and selection by winnowing etc. together guide downwards after the threshing that will discharge from outlet 23, and discharge to the outside from the outlet 66 that is formed on the bottom.
To shown in Figure 7, antiwind parts 60 lower ends that rear bearing sheet 25 forms the relative rear side of its lower limb 25a are positioned at the top as Fig. 3.Be welded with the cap assembly 67 that covers the sheet metal system of recess 25B from the rear in the lower right-most portion of rear bearing sheet 25, this recess 25B is rectangular when fore-and-aft direction is seen, cutting forms to inside from the right-hand member of rear bearing sheet 25 and lower end.Cap assembly 67 is bent to form top plate portion 67B and the left and right sides board 67C that forwards extends for the 67A of cover plate portion with rectangle relative with recess 25B, from the 67A of cover plate portion, 67D.Thus, the back step 56A that has the rectangular and rearwardly projecting no end when fore-and-aft direction is seen at the position, bottom right of back wall body 56.
In recess 25B and cap assembly 67, the position of the left side board 67C of the left end edge 25b of recess 25B and cap assembly 67 is set to: when fore-and-aft direction is seen, two intersection point Pa that the neighboring 60a of the lower limb 25a of this position and rear bearing sheet 25 and the antiwind parts 60 of rear side intersects, the intersection point Pb position on the right side among the Pb (side that threshing tooth 46 rises and moves) is roughly consistent, in other words, the right-hand member of the relative antiwind parts 60 of left side board 67C of the left end edge 25b of recess 25B and cap assembly 67 is positioned at pivot (the second axle center P2) side of threshing cylinder 21, is formed with in the left part of cap assembly 67 from the right-hand member of the antiwind parts 60 deep space of pivot side (left side) to threshing cylinder 21.And when fore-and-aft direction is seen, the position of the upper end-face edge 25c of recess 25B and the top plate portion 67B of cap assembly 67 is roughly consistent with the position of the upper end 59a of shaft supporting part 59.
Promptly, by will be when fore-and-aft direction is seen being set at the back step 56A that outstanding outburst area A forms the no end backwards across the rectangular area (forming the zone of recess 25B) of the neighboring 60a of rising rotational trajectory Ka and antiwind parts 60, rearward leave from the rear end of threshing cylinder 21 and the space segment S3a corresponding to outburst area A when fore-and-aft direction is seen that is formed on the second supporting walls parts 62 and the back discharge space S 3 between the wall body 56 is rearward expanded, above-mentioned rectangular area comprises at least at the whole wall zone of back wall body 56 meta in the rise outside of the rising rotational trajectory Ka that threshing tooth 46 front ends are described when mobile of threshing tooth 46, and pivot (second axle center) P2 of threshing cylinder 21 is positioned at an example in the zone of downside relatively, it is the outside of the rising rotational trajectory Ka that describes of threshing tooth 46 front ends, and the first area Aa that the pivot P2 of threshing cylinder 21 is following, and be included in the whole wall zone of back wall body 56 relative to antiwind parts 60 and be positioned at the right outside lateral outer side of the side that moves (the threshing tooth 46 rise), near and the roughly whole zone of the following second area Ab upper end 59a of shaft supporting part 59.
And, to in the whole wall zone of back wall body 56, form tabular surface and make its rear end in other zones (zone that comprises the 3rd regional Ac that disposes shaft supporting part 59) except outburst area A, so that be arranged on the antiwind parts 60 outer rear ends that are embedded in threshing cylinder 21 of back wall body 56 near threshing cylinder 21.
Back step 56A is to make the lower end of back step 56A be connected with the preceding upper end of discharging cover 63 by recess 63A that is formed on the preceding upper end of discharging cover 63 and the mode of discharging cover 63 connections.And, be formed with the extension 25C~25E that extends in the mode of stopping up the zone that is not communicated with at the recess 63A that discharges cover 63 with back step 56A in the bottom of rear bearing sheet 25.
Pass through said structure, along with threshing cylinder 21 with front and back towards the second axle center P2 be fulcrum when seeing from behind to anticlockwise, be suspended to rise the threshing tooth 46 that moves and together rotation even move to paddy stalk and stalk bits etc. after the threshing of discharging space S 3, if under the effect of centrifugal force and gravity, break away to centrifugal direction from threshing tooth 46, then handled paddy stalk and stalk bits etc. after the follow-up threshing of moving in the direction downstream to rearward extruding the inside of (the direction downstream is handled in threshing) back step 56A of breaking away from big distance from the moving area of threshing tooth 46 to threshing, flow down to discharging cover 63 inside from the inside of back step 56A, thereby discharge to the outside from being formed on the outlet 66 of discharging cover 63 bottoms.
And, by top plate portion 67B being set at back step 56A, inside at back step 56A, paddy stalk and stalk bits etc. can not break away from the rear (the direction downstream is handled in threshing) that has big distance from the moving area of threshing tooth 46 after the threshing, be suspended to threshing tooth 46 and together paddy stalk and stalk bits etc. after the threshing of rotation even have, the top plate portion 67B of back step 56A admits paddy stalk and stalk bits etc. after these threshings, stop with threshing tooth 46 and together rotate, therefore, can impel be suspended to threshing tooth 46 and together after the threshing of rotation paddy stalk and stalk bits etc. flow down downwards.
Promptly, for example, if whole wall zone that will back wall body 56 forms tabular surface back wall body 56 integral body on fore-and-aft direction near the rear end of threshing cylinder 21, even when the long paddy stalk of harvesting crop, paddy stalk and stalk bits etc. break away to centrifugal direction from threshing tooth 46 under effects such as centrifugal force and gravity after the threshing that being suspended to the mobile threshing tooth 46 of rising and together rotating, because paddy stalk and stalk bits etc. are from the rearward mobile restriction that is subjected to back wall body 56 of the moving area of threshing tooth 46 after the threshing, therefore, can not break away from from threshing tooth 46 paddy stalk and stalk bits etc. after the threshing that centrifugal direction breaks away from from the moving area of threshing tooth 46, be easy to generate the phenomenon that is suspended to threshing tooth 46 once more and together rotates, thus, cause making after the threshing paddy stalk and stalk bits etc. to be trapped in easily and discharge space S 3, but, in the above-described embodiment, the space segment S3a relative with outburst area A rearward expands in the space S 3 with discharging, so that after the threshing paddy stalk and stalk bits etc. be suspended to the threshing tooth 46 that rise to move and together the phenomenon of rotation be difficult to take place, therefore, can prevent that paddy stalk and stalk bits etc. are trapped in after the threshing discharges space S 3, can impel after the threshing paddy stalk and stalk bits etc. to discharge to the outside.
And, owing to do not need picture when afterwards wall body 56 positions are altered to rear side, increase the total length of threshing cylinder 21 after changing wall body 56 positions the time, perhaps, make the so extensive improvement of front and back length lengthening of the antiwind parts 60 of rear side in order to prevent paddy stalk winding center axes 36 after the threshing, therefore, can prevent the maximization, heavy-duty etc. of sheller unit 5.
(other embodiments)
(1), can constitute the auger type row paddy device that replaces sack-filling device 7 to have grain collecting box and can discharge grain from grain collecting box as full feeding type combine.And also can have will be from the shredding mechanism (cutter mill) of paddy stalk chopping after the threshing of outlet 23 discharges.
(2) as threshing cylinder 21, can be helical tooth, threshing tooth etc. to be installed and the drum-type threshing cylinder of formation in the periphery of trunk parts cylindraceous, and, threshing tooth 46 in the configuration of the rearward end of the threshing cylinder 21 that faces outlet 23, can have its outstanding distolateral receding angle, with threshing tooth 46 disengagings such as paddy stalks after the promotion threshing from being disposed at threshing cylinder 21 rearward end the closer to threshing cylinder direction of rotation downstream.And then, threshing cylinder 21 constitute with front and back towards the second axle center P2 be fulcrum when seeing from behind to right rotation.
(3) in the utility model, at least the whole wall zone of back wall body 56 meta in threshing tooth 46 rise the outside of the rising rotational trajectory Ka that threshing tooth 46 front ends are described when mobile and relatively the pivot P2 of threshing cylinder 21 be positioned at the zone of downside, be not limited in the above-mentioned embodiment illustrative at the first area Aa of the whole wall zone of back wall body 56 meta below the pivot P2 of the outside of the rising rotational trajectory Ka that threshing tooth 46 front ends are described and threshing cylinder 21, also can be for example the whole wall zone of back wall body 56 meta in the outside of the rising rotational trajectory Ka that threshing tooth 46 front ends are described and below shaft supporting part 59 lower ends the zone or relatively the lower end be positioned at the zone of downside.And, can also be about the back wall body 56 of whole wall zone meta in the rising rotational trajectory Ka that describes from threshing tooth 46 front ends to rising rotational trajectory side of back wall body 56 side (above-mentioned embodiment middle finger right-hand member), and following zone, shaft supporting part 59 lower ends.
(4) as outburst area A, can be set at for example in the whole wall zone of back wall body 56, the horizontal side (above-mentioned embodiment middle finger right-hand end) of antiwind parts 60 that is positioned at the rising rotational trajectory Ka side of describing from threshing tooth 46 front ends is to about the back wall body 56 of rising rotational trajectory side one side (above-mentioned embodiment middle finger right-hand member), and following zone, shaft supporting part 59 lower ends (when fore-and-aft direction is seen across rising rotational trajectory Ka zone), this zone be included in back wall body 56 the back wall body 56 of whole wall zone meta in the rising rotational trajectory Ka that describes from threshing tooth 46 front ends to rising rotational trajectory side about the side (above-mentioned embodiment middle finger right-hand member), and the zone that shaft supporting part 59 lower ends are following, and, the back step 56A that makes the outstanding no end of this outburst area A is backwards formed back wall body 56.
(5) back step 56A can form rectangle, one side about the side that the pivot P2 from threshing cylinder 21 of this rectangle leaves (above-mentioned embodiment middle finger right-hand end) be positioned at rising rotational trajectory Ka that threshing tooth 46 front ends describe and rising rotational trajectory side back wall body 56 about between the side (above-mentioned embodiment middle finger right-hand end), and when fore-and-aft direction is seen across rising rotational trajectory Ka or across the neighboring 60a of rising rotational trajectory Ka and antiwind parts 60.
(6) as shown in Figure 8, as outburst area A, first area Aa after can only being set in below the pivot P2 of the outside of the whole wall zone meta of the wall body 56 rising rotational trajectory Ka that threshing tooth 46 front ends are described when 46 risings of threshing tooth are mobile and threshing cylinder 21, and, the back step 56A that only makes the outstanding no end of this first area Aa is backwards formed back wall body 56.
(7) as shown in Figure 9, as outburst area A, be positioned at the right outside (lateral outer side of the side that 46 risings of threshing tooth are moved) relative to antiwind parts 60 in the whole wall zone of wall body 56 after can being set in, and near the upper end 59a of shaft supporting part 59 (from upper end 59a a little downside or from upper end 59a upside a little) below second area Ab (zone that comprises above-mentioned first area Aa at least), and, the back step 56A that only makes the outstanding no end of this second area Ab is backwards formed back wall body 56.
(8) as shown in figure 10, as outburst area A, be positioned at the right outside (lateral outer side of the side that 46 risings of threshing tooth are moved) relative to antiwind parts 60 in the whole wall zone of wall body 56 after can being set in, and the 4th regional Ad (zone that comprises above-mentioned first area Aa at least) that the upper end 59a of shaft supporting part 59 is following, and, the back step 56A that only makes the outstanding no end of the 4th regional Ad is backwards formed back wall body 56.
(9) as shown in figure 11, as outburst area A, the 5th regional Ae (zone that comprises above-mentioned first area Aa at least) after can being set in below the upper end 59a of the outside of the whole wall zone meta of the wall body 56 rising rotational trajectory Ka that threshing tooth 46 front ends are described when 46 risings of threshing tooth are mobile and shaft supporting part 59, and, the back step 56A that only makes the outstanding no end of this outburst area A is backwards formed back wall body 56.
(10) as shown in figure 12, as outburst area A, be positioned at the right outside (lateral outer side of the side that 46 risings of threshing tooth are moved) relative to antiwind parts 60 in the whole wall zone of wall body 56 after can being set in, and the 6th regional Af (zone that comprises above-mentioned first area Aa at least) that the pivot P2 of threshing cylinder 21 is following, and, the back step 56A that only makes the outstanding no end of this outburst area A is backwards formed back wall body 56.
(11) as shown in figure 13, as outburst area A, the intersection point Pc that can be set in the rising rotational trajectory Ka that rising is described when moving in the rotational trajectory K that back wall body 56 lower limbs (lower limb of rear bearing sheet 25) 25a and threshing tooth 46 front ends are described in the whole wall zone of back wall body 56 is positioned at right lateral SECTOR-SEVEN territory Ag (zone that comprises above-mentioned first area Aa at least), and, the back step 56A that makes the outstanding no end of this outburst area A is backwards formed back wall body 56.
(12) as shown in figure 14, as outburst area A, the Section Eight territory Ah (zone that comprises above-mentioned first area Aa at least) in the outside of the rotational trajectory K that the whole wall zone meta that can be set in back wall body 56 is described in threshing tooth 46 front ends, and, the back step 56A that makes the outstanding no end of this outburst area A is backwards formed back wall body 56.
(13) as shown in figure 15, as outburst area A, the 9th regional Ai (zone that comprises above-mentioned first area Aa at least) outside antiwind relatively parts 60 are positioned in the whole wall zone of wall body 56 after can being set in, and, the back step 56A that makes the outstanding no end of this outburst area A is backwards formed back wall body 56.
(14) antiwind parts 60 are being embedded on the rear wall member 44 that is configured in threshing cylinder 21 rear ends to prevent to be received in the structure of harvested cereal culm winding center axes 36, whole or the part that relative rear wall member 44 can be positioned at the zone in the outside is set at outburst area A, and, the back step 56A that makes the outstanding no end of this outburst area A is backwards formed back wall body 56.