In the prior art, the paddy bar of reaping part harvesting is rearward transported, accept by the feeding chain, grain ear is directed into the shelling mouth of threshing apparatus, carry out shelling, grain behind the shelling and straw bits etc. leak down to oscillatory sorting device from the wrinkle net that is configured in shelling tube below, contain not to be transported to and be located at the sending in the dirt mouth process cartridge of shelling tube rear lateral portion, sub-elect grain and straw bits etc. by 2 grades of things of the grain of shelling tube processing.Fall the grain on the above-mentioned oscillatory sorting device, by swing sorting and wind sorting, divide the one-level thing of hanking, secondary thing, grass bits, be stored in the upper slot of top suction type by the one-level thing of the moving belt of winnowing after sorting, sorting secondary thing is considered grass to be worth doing slave and is just discharged after one's death again.
Fore-and-aft direction middle part at above-mentioned wrinkle net is setting partition wall.Paddy bar by the feeding chain transports temporarily is detained at this partition wall, like this, makes the counter-rotating of paddy bar can not omit the ground shelling, can stop the grain of coming at the wrinkle web stream simultaneously, and it is not fallen.In addition, form the outlet demarcation strip in above-mentioned wrinkle net rear end, can will send dirt mouth process cartridge attached to the input side openings such as grain on the branch stalk.
In the above-mentioned side of sending dirt mouth process cartridge, be provided with the guiding cover that constitutes by plate body towards feeding lateral bending song.
But, in the existing combine shelling sorting unit, make the counter-rotating of paddy bar by above-mentioned partition wall, reduce shelling and omit, when the paddy bar is crossed partition wall,, shred grain ear or bar easily by the powerful cutting of the cutter of shelling tube.
In addition, row's straw are rearward transported from the outlet partition wall of above-mentioned wrinkle network termination portion, simultaneously along with row's straw, straw bits and fail the concentrated areas such as paddy of threshing and drop on the oscillatory sorting device, sometimes the swing sorting of oscillatory sorting device and wind sorting has little time sorting, and the straw bits directly fall downwards and are mixed in the one-level thing.
In addition, choose at the wind branch, the straw bits by the attraction fan of back upper place dispels are deposited on the inclined plane of above-mentioned guiding cover easily, hinder flowing of sorting wind.
Embodiments of the invention are described with reference to the accompanying drawings.
The unitary construction of combine roughly is described referring to figs. 1 through Fig. 3 earlier.Frame 2 is installed on the cterpillar drive 9, and in fuselage direct of travel left side, mounting shelling portion 4 and sorting portion 5, the upper slot 3 of driver's seat 10 and storage grain in the right side mounting.Reaping part 6 is positioned at the forefront of fuselage in the place ahead of shelling portion 4.Reaping part 6 respectively transport body gathering in the feeding chain 7 that the paddy bar is transported to shelling portion 4 sides.Shelling tube 8 shellings of paddy bar in shelling portion 4 of being accepted by feeding chain 7, grain of shelling etc. is fallen the sorting portion 5 below it, by the moving belt 60 of winnowing the one-level thing after the sorting is dropped in the upper slot 3,, carry out sorting again by the front portion of reduction moving belt 69 with secondary thing input sorting portion 5.In addition, setting row's straw conveyer 61 in the rear end of feeding chain 7, cutting off the row's straw that are transported, be discharged in the field by row's straw cutter 62 of the row's of being provided in straw conveyer 61 lower rear.
As shown in Figure 4, shelling portion 4 is constructed as follows: indoor at shelling, and shelling tube 8 and send dirt mouth process cartridge 63 to the ground crossbearer towards front and back with the axle core, form sorting portion 5 in the bottom of shelling portion 4.At the outer peripheral face of shelling tube 8, planting shelling sword 8a, 8a ..., around below the shelling tube 8, be provided with wrinkle net 64, only paddy and little straw bits etc. leak down by this wrinkle net 64, sub-elect paddy and straw bits in separation chamber.The above-mentioned dirt mouth process cartridge 63 that send, upper slot 3 one sides at the rear portion of shelling tube 8 are parallel to shelling tube 8 ground crossbearers and, and deliver to dirt mouth process cartridge 63 to what shelling tube 8 can not be handled attached to the grain on the branch stalk etc. and handle, straw bits etc. are transported to the rear, outside the discharge machine.
The following describes transmission of power structure to sorting portion 5 transferring power.As shown in Figure 6, be provided with sorting driving box 70 in the place ahead of sorting portion 5, crossbearer sorting driving shaft 71 on this sorting driving box 70, and the transmission of power that is configured in the engine 72 of driver's seat shown in Figure 3 10 belows arrives in the case 70, drives sorting driving shaft 71.In end, the left side of this sorting driving shaft 71 (feeding chain side), setting firmly belt pulley 73, the belt 74 of reeling.
Belt 74 is wound on transferring power on belt pulley 75 and the belt pulley 76.Belt pulley 75 is fixed on the end of the driving shaft 65a of windmill 65, and this windmill 65 is configured in the front portion of sorting portion 5.Belt pulley 76 is fixed on the transporting on the tape spool 66a of first moving belt 66 at its rear.Transport on the tape spool 66a above-mentioned, fixing the belt 78 of reeling on the 2nd belt pulley 77, the 2 belt pulleys 77 different with belt pulley 76.This belt 78 is wound on transferring power on belt pulley 79, belt pulley 80 and the belt pulley 81.Belt pulley 79 is fixed on the end of transporting tape spool 67a of second moving belt 67, and belt pulley 80 is in the body of direction swing thereafter 83 transferring power.Belt pulley 81 is fixed on the end of the discharge at shelling portion 6 rear portions with the driving shaft 68a of ventilating fan 68.
As shown in Figure 3, at the opposite side of first moving belt 66, connecting the moving belt 60 of winnowing drivingly by bevel gear, the paddy that is transported by first moving belt 66 is transported to upper slot 3 by the moving belt 60 of winnowing.Again as shown in Figure 3, in the other end of second moving belt 67, connecting reduction moving belt 69 drivingly by bevel gear, the other end outlet of this reduction moving belt 69 is faced with the front side portion of sorting portion 5, with the reduction of secondary thing, carries out sorting once more.
The preceding bottom of belt 74 is wound on the guiding belt pulley 100, and as Fig. 6, shown in Figure 7, by the pivot branch 102 outer ends that are embedded in the pivot fulcrum 101 of this guiding belt pulley 100 that bearing constitutes, the outer peripheral face in this pivot branch 102 is setting firmly two arms 103,104.Dash forward and establishing fulcrum 105 in the end of arm 103 up, and idler roller 107 is embedded on this fulcrum 105 by bearing 106 is outer rotationally, makes the outside of idler roller 107 butt belt pulleys 74.One end of helical spring 108 is combined in the lower end of below arm 104, the other end of helical spring 108 is combined in the rear end of lead screw 109, this lead screw 109 is screwed on the transmission of power case, helical spring 108 pushes arm 104 towards the direction of forwards rotating, with arm 103 idler roller 107 is pushed towards the direction of rearward rotating, belt 74 is paid tensile force.Position by ground, front and back set screw bar 109 can change the elastic force of helical spring 108, thereby regulates the tensile force of belt 74.
As Fig. 6, shown in Figure 8,, be provided with idler roller 116 for belt 78 is applied tensile force.Promptly, one end of arm 110 pivot rotationally props up on side plate, and strut 111 is installed in the other end of this arm 110, and an end of helical spring 112 is combined on this strut 111, the other end of helical spring 112 is combined on the lead screw 113, and this lead screw 113 is provided in transmission of power case side.The rear portion side of arm 110 is pushed towards the direction of rotating upward.Setting firmly fulcrum 114 at the rear portion of this arm 110, idler roller 116 is embedded on this fulcrum 114 by bearing 115 is outer rotationally, makes idler roller 116 butt belts 78.Idler roller is paid tension force to belt 78 like this by these helical spring 112 pushings.Because idler roller 116 and idler roller 107 are folded in bearing between each fulcrum,, reduce abrasion so can make the rotation of belt 74, belt 78 smooth.
The supporting construction of the shelling tube 8 that shelling is indoor is described below with reference to Fig. 4, Fig. 5, Fig. 9, Figure 10.The driving shaft 122 of shelling tube 8 is by anterior supporting mass 120 tops and vertical supporting mass 121 pivots of establishing of being located at position the fore-and-aft direction way, shelling chamber that hang down are propping up from the shelling chamber.The bottom of this supporting mass 120,121, left side (feeding chain side) is open, form opening 120a, 121a, pass through for the paddy bar.Wrinkle net 64 is fixed on the rack 123, and second side of shelling tube 8 partly is covered and covers.The grain ear of paddy bar is transported by feeding chain 7 by between shelling tube 8 and the wrinkle net 64.
Wrinkle net 64 is seen as circular-arcly as shown in figure 10 from behind, covers shelling sword 8a, the 8a of shelling tube 8 ... the summary downside in the rotary motion trace outside of front end.In addition, as shown in Figure 5,, offering to the input port 126 of sending dirt mouth process cartridge 63 openings on the right side, rear portion of wrinkle net 64.In the rearward end of wrinkle net 64, setting firmly outlet partition wall 124.Paying grain on branch stalk etc. and be guided input port 126, sent dirt mouth process cartridge 63 by input again along outlet partition wall 124.
Above the middle part, fore-and-aft direction way of wrinkle net 64, setting firmly the demarcation strip 125 of left and right directions.This demarcation strip 125 forms circular-arc along wrinkle net 64.This demarcation strip 125 utilizes the bolt spiral shell that runs through wrinkle net 64 solid on rack 123.
As shown in Figure 5, by near the shelling sword 8b demarcation strip 125 front and back, be lower than other shelling sword 8a, 8a ...Therefore, by big than before of the space between demarcation strip 125 and the shelling sword 8a, the indoor paddy bar of shelling can waltz through.Like this, can prevent to be cut off rapid and powerfully, prevent to shred paddy bar and awns, also can prevent the abrasion of demarcation strip 125 by shelling sword 8b.
As shown in figure 10, the height of demarcation strip 125 is set like this: promptly, see from behind, from the upper right quarter to the central lower, cover shelling sword 8a, the 8a of shelling tube 8 ... the rotary motion trace of leading section reduces towards the left side gradually from central lower.The part of this reduction is the position that the grain ear of the feeding chain 7 paddy bar that transports of seizing on both sides by the arms passes through, and makes grain ear pass through demarcation strip 12 5 smoothly, like this, reduces the chopping and the chopping of paddy bar of grain ear, also prevents the abrasion of demarcation strip.
As Fig. 5, shown in Figure 9, send dirt mouth process cartridge 63 to be parallel to side, rear portion that shelling tube 8 ground are provided in shelling tube 8 to the rear, extend to the side of the ventilating fan 68 that is configured in top, shelling portion 4 rear always.Setting firmly rear wall 131 on the top of support column 130, propping up from sending dirt mouth process cartridge 63 rear ends outstanding driving shaft 133 by pivot support body 132 pivots of rear wall 131.Sending dirt mouth process cartridge 63 is the screw type process cartridges that are provided with the helical form helical at the cylindrical shell outer peripheral face.This send dirt mouth process cartridge 63 following by being cone-shaped hood 134 coverings that setting some plate bodys radially, and the grain on the branch stalk is being paid in processing, makes it drop to aftermentioned and swings on the body 83.
To the front of ventilating fan 68, the guide body 135 that is made of elastomers such as rubber or synthetic resin hangs down from the feeding chain side side of sending dirt mouth process cartridge 63 from the terminal part of shelling tube 8.Stretch out downwards position the way of guide body 135 from the sidepiece that send dirt mouth process cartridge 63 to swing body 83.Because this guide body 135 is to hang down towards vertical direction,, swing on the body 83 but fall so straw bits etc. can not be deposited on the guide body 135.Therefore, can prevent the change that weakens or fall direction of the sorting wind that causes because of the accumulation in falling the way such as straw bits.In addition, be not darted at feeding chain side the existing guide plate owing to do not resemble, so, enlarge at left and right directions to the space the ventilating fan 68 from shelling tube 8 terminals, can prevent because of the paddy bar or the intensive efficiency of separation that reduces of dust.
The following describes the structure in the sorting portion 5.As Fig. 5, shown in Figure 9, in this sorting portion 5, carry out gravity separation by oscillatory sorting device, carry out the wind sorting by windmill 65, one-level thing, secondary thing and the straw bits etc. of grain are carried out sorting.The leading section of the swing body 83 of oscillatory sorting device is configured in the front end below of shelling tube 8, and the rear end of swing body 83 reaches the lower rear of sending dirt mouth process cartridge 63 always.Swing body 83 can swingingly support towards fore-and-aft direction slightly, is provided with pivot fulcrum 84 in the preceding bottom of swing body 83, and the rear portion pivot of this pivot fulcrum 84 is propped up on crank axle 85, swings by the rotation of crank axle 85.
The left and right directions width of swing body 83 is set at from shelling tube 20 left ends below to the width that send dirt mouth process cartridge 63 belows, so that paddy and grass that practical acceptance falls.To shelling tube 8 central portions belows, disposing feed table 86 from the leading section of swing body 83, be provided with scalping at its rear.Before and after in this scalping abreast crossbearer the metal forming fin 87,87 of several left and right directions ...Sorting wind from windmill 65 imports from the opening that is located at swing body 83 front portions, falls to the paddy of this scalping with the wind sorting.
Two upper lateral part pivots of each scalping 87 prop up on the side plate of swing body 83.Two side lower parts of each scalping 87 are bearing on the side plate of swing body 83 swingably.Like this, each scalping 87 can be according to the grain quantitative change of wanting threshing angle of inclination more.In order to limit the amount of leaking down of grain, the bottom of scalping 87 is towards the front upper place bending.Several pieces metal forming fins 87 of front side ', 87 ' ... preceding bottom towards back lower place bending, promote to leak down by this part, also can sorting even transport a large amount of grain from supply disk 86.
Several metal forming fins 87,87 at rear below shelling tube 8 terminal parts ... on, as Fig. 5 and shown in Figure 11, setting firmly thorn protecting plate 88 in the front, upper end of each metal forming fin 87.As shown in Figure 9, this thorn protecting plate 88 extends to the middle part of this metal forming fin 87 from the left part of metal forming fin 87 always, in the present embodiment, extends to the lower position of the opening 121a right part of above-mentioned supporting mass 121 always.This thorn protecting plate 88 as shown in Figure 5, its Lower Half is towards the place ahead bending.
Like this, owing to disposing thorn protecting plate 88 along horizontal direction slightly, so, even being sent to the rear with row's straw from the opening 121a of supporting mass 121, the cut-out end of paddy bar etc. fall, can successfully do not flowed by 87 thorns of metal forming fin yet.Therefore, can prevent that the cut-out end of paddy bar is by metal forming fin 87,87 ... thorn causes delay, hinders flowing or the generation obstruction of grain.
Smart grain after the sorting is accommodated in the upper slot 3 by the moving belt 60 of winnowing.As Fig. 2, shown in Figure 12, offering hole 3a above this upper slot 3, this hole 3a is closed by tabular lid 140.This lid 140 is connected with upper slot 3 by hinge 141,141 along one side of hole 3a, lid 140 can be towards the top rotationally pivot propping up.With the limit of the hole 3a of hinge 141,141 opposition sides on, setting firmly leaf spring 142, by this leaf spring 142 the end limit of lid 140 is managed to make do with taking off engaging.Leaf spring 142 easy deflections promptly use very little power also can remove the joint of lid 140, start upward.
In upper slot 3, filled grain, and grain is when still transporting by the moving belt 60 of winnowing, and unnecessary grain starts lid 140 upward from hole 3a, is disengaged by the flexure joint of leaf spring 14 2, lid 140 rotates upward and opens, and grain overflows from hole 3a.Because this overflows, even continue to transport grain in upper slot 3 from the moving belt 60 of winnowing, grain can not be blocked in the moving belt 60 of winnowing yet or be scratched, and can not cause damage to effect overload such as moving belt driving shaft yet.
Because the operator sees promptly and overflowing that the grain that can carry out in the upper slot 3 are discharged operation, so, even the paddy quantity sensor is not installed or this sensor breaks down, can not cause the breakage of moving belt or upper slot 3 etc. yet.That is, the lid of opening upward easily 140 itself can be used as cheap safety device.In addition, setting firmly handle 143 on the lid 140, also available manual switching.
The present invention of above-mentioned structure has following effect.
The first, below the shelling tube of united reaper, disposing the wrinkle net, because at this crape The fore-and-aft direction middle part of line net top, the configuration right and left to demarcation strip, make by this separation Near the shelling sword of the shelling tube the plate is lower than other shelling sword, so on one side that the paddy bar is separated plate is anti-Turn to when crossing this demarcation strip on one side, because of the effect of low shelling sword, do not carry out sharply taking off of brute force Paddy can prevent from shredding the problems such as grain ear, improves the shelling precision.
The second, above the fore-and-aft direction middle part of wrinkle net, the configuration right and left to separation Plate and since reduce this demarcation strip the paddy bar grain ear pass through part, so the grain ear of paddy bar and The demarcation strip butt of lower part, the space enlargement between partition wall and the shelling tube is when grain ear passes through Can reduce chopping grain ear and chopping paddy bar, improve the shelling precision.
The 3rd,, arrange and be parallel to the shelling tube to the rear in the rear lateral portion of united reaper shelling tube Send dirt mouth process cartridge, at this rear portion of sending dirt mouth process cartridge, the air draft of discharging straw bits etc. is set The fan since from this shelling tube rear end section in the space of ventilating fan front portion, from standing facing each other with the feeding chain This send the sidepiece of the dirt mouth process cartridge guide body that hangs down, so straw bits and dust etc. are not deposited in On the guide body. From shelling tube terminal to ventilating fan, at the feeding chain and send between the dirt mouth process cartridge, Compare with the situation that disposes like that before guide plate, the space enlarges to the left and right, correspondingly by pendulum The width of the sorting wind of moving sorting unit increases, the sorting expanded range, so, in this space The accumulation of grass bits etc. reduces, and guarantees the attraction of ventilating fan, and straw are considered to be worth doing outside the discharge machine, improves and divides Select performance.
The 4th, subordinate side is disposing oscillatory sorting device at shelling, because at oscillatory sorting device The fore-and-aft direction middle part rear of swing body, set and have several right and lefts to metal forming The scalping of fin is at the several metal forming fins that are positioned at this shelling tube terminal part lower position rear Top, setting firmly towards the outstanding thorn protecting plate of horizontal direction slightly, so, even the straw of chopping etc. Under shelling tube rear end clan, these chopping straw etc. are positioned on the thorn protecting plate with row's straw, because of This can prevent from shredding the thorn such as straw or is blocked between the metal forming fin and hinders grain in the scalping Flow, can keep swinging the high separation performance of body.