CN205987731U - Twin screw compresses straw baler - Google Patents

Abstract

The utility model discloses a kind of twin screw compresses straw baler, belong to agricultural mechanical field, solve baler complex structure in prior art, the problem of weight weight, the technical scheme solving this problem mainly includes twin screw straw compression device, binding apparatus and driving means, twin screw straw compression device includes barrel, first helical blade and the second helical blade, barrel is provided with charging aperture, first helical blade and the second helical blade are side by side in barrel, barrel is connected and passes through the first helical blade and the second helical blade and conveys straw to binding apparatus with binding apparatus, first helical blade and the second helical blade are driven by driving means, first helical blade is contrary with the hand of spiral of the second helical blade, the direction of rotation of the first helical blade and the second helical blade is contrary and dorsad charging aperture.This utility model is mainly used in compressing straw bundling.

Description

Twin screw compresses straw baler

Technical field

This utility model is related to agricultural machinery, and particularly a kind of twin screw compresses straw baler.

Background technology

At present, in the automatization's harvesting apparatus adopting during the operation of China rice wheat harvesting, the use of united reaper is very general Time, but straw is scattered in field in harvesting by current united reaper, does not directly reclaim.Now with towed straw Picking up and bundling machine carries out operation recovery, is secondary operation, and equipment is numerous and diverse, and artificial input is big, and inefficiency has Financial cost Height is it is impossible to popularize.Therefore, a lot of people still adopt in the direct crop straw burning in field, serious environment pollution.Someone devises harvesting Wheeled harvester is disclosed supporting in bundling all-in-one, the such as utility model patent for CN204146033 for China's patent announcement number Straw baler technology is it is intended to solving existing united reaper high cost, easily twining the high deficiency of grass, fault rate.This practicality is new Type includes harvester and the baler being arranged on harvester, and harvester is provided with drum shaft, drum shaft passes through several tight Gu mode connects for screw drive sprocket, baler include bundling case, reductor, drive mechanism, defeated grass box, grass stick, longitudinally pressure straw articles, Wire twister, bundling case is inclined upwardly setting from front to back, and bundling case upper end is provided with material inlet near anterior position, after bundling case End is provided with material outlet, is provided with piston in bundling case, and piston nose is flexibly connected push rod, and piston upper end is near the margin location at rear Put and be connected with front dynamic knife, on bundling case, material inlet rearward edges position is connected with the stationary knife of adaptation corresponding with front dynamic knife, front dynamic The linear structure of blade of knife, the blade indentation structure of stationary knife.Whole baler complex structure, weight weighs more than 1300 Jin, is arranged on harvester side, produces left and right weight imbalance, easily produces and overturn, power consumption is also big, and effect is simultaneously bad.

Utility model content

This utility model purpose to be reached is exactly to provide a kind of twin screw compression straw baler, mitigates weight, carries High compression efficiency.

In order to achieve the above object, this utility model adopts the following technical scheme that：Twin screw compresses straw baler, including Twin screw straw compression device, binding apparatus and driving means, twin screw straw compression device includes barrel, the first helical blade and Two helical blades, barrel is provided with charging aperture, the first helical blade and the second helical blade side by side in barrel, barrel and bundling Device connects and passes through the first helical blade and the second helical blade and conveys straw, the first helical blade and second to binding apparatus Helical blade is driven by driving means, and the first helical blade is contrary with the hand of spiral of the second helical blade, the first helical blade And dorsad charging aperture contrary with the direction of rotation of the second helical blade.

Further, described barrel includes, along the conveying direction of straw, gather materials section, feeding section and feeding section, charging aperture located at Gather materials section, the starting point of feeding section is located at the edge of charging aperture, the first helical blade is extended to from section of gathering materials with the second helical blade Feeding section.

Further, the inwall of described section of gathering materials is convex positioned at forming sub-material between the first helical blade and the second helical blade Rise, sub-material is raised to be located at the relative both sides of barrel respectively with charging aperture, the height of sub-material projection along straw conveying direction gradually Reduce.

Further, the inwall described feeding section being located at feed hole edges is provided with spigot surface, and spigot surface is laterally across the The axis of one helical blade and the axis of the second helical blade, spigot surface extends to the starting point of feeding section along the conveying direction of straw And move closer to the first helical blade and the second helical blade.

Further, described charging aperture is located at the top of barrel, and the conveying direction along straw sees, the first helical blade is located at The left side of the second helical blade, the first helical blade is left-handed blade, and the second helical blade is dextrorotation blade, the first helical blade Turn clockwise, the second helical blade rotate counterclockwise；

Or, described charging aperture is located at the bottom of barrel, and the conveying direction along straw is seen, the first helical blade is located at second The left side of helical blade, the first helical blade is dextrorotation blade, and the second helical blade is left-handed blade, the first helical blade inverse time Pin rotates, and the second helical blade turns clockwise.

Further, the inwall of described barrel is provided with guide groove, and guide groove extends along the conveying direction of straw.

Further, described binding apparatus includes bundling case, wire twister and slotting tool, wire twister include the first reciprocator and Knotting shank, knotting shank is rotatably connected on bundling case, and slotting tool is fixed as one with knotting shank, and slotting tool is with knotting shank simultaneously Row arranges and bearing of trend is identical, and the length of slotting tool is shorter than the length of knotting shank, and driving means pass through first reciprocator's band Dynamic knotting shank and slotting tool swing work.

Further, described binding apparatus includes bundling case, wire twister and slotting tool, wire twister include the first reciprocator and Knotting shank, knotting shank is rotatably connected on bundling case, and driving means are passed through the first reciprocator and drive knotting shank to swing Work, slotting tool and knotting shank respectively positioned at the relative both sides of bundling case, slotting tool perpendicular to straw conveying direction relative to bundling Case moves back and forth, and driving means are passed through the second reciprocator and carried active slotting-tool motion work.

Further, described bundling case is connected as one by connecting box with barrel, one end that connecting box is connected with barrel Cross sectional shape be the cross sectional shape of one end that track type or ellipse, connecting box are connected with bundling case be rectangle, track type or Oval transverse width is more than the transverse width of rectangle, and the longitudinally height of track type or ellipse is less than the longitudinally high of rectangle Degree, the area of track type or ellipse is more than the area of rectangle.

Further, it is provided with adjustable plate in described bundling case, adjustable plate is provided with adjusting nut, bundling case is provided with regulation Bar, adjusting rod is coordinated through adjusting nut, and adjusting rod rotation makes the inwall of adjustable plate relatively bundling case swing to adjust dozen The cross-sectional area of bundle case.

After technique scheme, this utility model has the advantage that：Due to the first helical blade and the second spiral Blade is arranged side by side, and therefore the width of barrel increases, and the transverse width of charging aperture is more than the axis spacing of two helical blades, enters Material mouth is bigger, and inlet amount can increase, and decrement within the unit interval for the straw increases, and therefore improves compression efficiency, compares existing Some balers can compress about the straw of 50 mu of crops of bundling for one day, and this utility model is through overtesting, and one day permissible The straw of compression 100 mu of crops of bundling.And, the first helical blade and the second helical blade compress simultaneously, are applied to straw On pressure higher, straw not only can be made to be easier to be compressed into buttress, and the pressed density of bundled straw can be improved, Equivalent weight lower volume is less, more convenient later collection transport.Simultaneously because the width of barrel increases, the bundled straw after compression Width also accordingly increases, and is to carry out tying up around bundled straw bundle along the conveying direction of straw because binding apparatus carries out bundling, And typically with two ropes when bundling, so the bundled straw width after compression increases, can conveniently distribute rope spacing, improve The reliability of binding, further, since the bundled straw width after compression increases, can accordingly shorten the bundled straw after compression Length, can shorten the length of rope, reduce the use cost of rope.Enter the straw of feeding cylinder from charging aperture, can quickly by Straw at charging aperture draws in barrel and is extruded, when straw is followed after helical blade rotates a circle already at compressive state, The straw that would not affect subsequently to enter feeding cylinder from charging aperture continues charging, prevents straw from causing charging stifled from charging aperture returning charge Plug, straw will be expressed between two helical blades by two helical blades after charging aperture enters feeding cylinder simultaneously, can be fast Speed makes mutually to integrate between straw, improves the intensity of bundled straw, is difficult to disperse.Meanwhile, two helical blades extrude in opposite directions, can To improve the regularity that straw conveys in barrel, improve transfer efficiency.Due to the foot of the compression by two helical blades To meet compression requirements, therefore it is no longer necessary to press straw articles used in prior art, and the weight of two helical blades is simultaneously less, For comparing pressure straw articles, can largely reduce the weight of baler, the actual weight of test products is about on 600 jin of left sides The right side, can reach loss of weight more than 50%, so the load that harvester causes is greatly reduced, can be with the harvesting portion of harvester Balance-dividing weight, is not in not only the situation of rollover moreover it is possible to reduce the oil consumption of harvester, under the use cost of harvester obtains Fall.Be exactly also two helical blades structure simple, lightweight, installing/dismounting is all very convenient, in Product Assembly and follow-up tie up During shield, all become to be more prone to.

Brief description

The utility model is described in further detail below in conjunction with the accompanying drawings：

Fig. 1 is the structural representation (main view perspective) that in this utility model, twin screw compresses straw baler；

Fig. 2 is the structural representation (top perspective) that in this utility model, twin screw compresses straw baler

Fig. 3 is for A-A in Fig. 1 to profile；

Fig. 4 is B-B direction profile in Fig. 1；

Fig. 5 is for C-C in Fig. 1 to profile；

Fig. 6 is for D-D in Fig. 1 to profile；

Fig. 7 is the structural representation of another kind of slotting tool in this utility model.

Specific embodiment

As shown in Fig. 1 is to 7, this utility model provides a kind of twin screw to compress straw baler.

See Fig. 1 and Fig. 2, this utility model includes twin screw straw compression device, binding apparatus and driving means, twin screw straw Stalk compressor includes barrel 1, the first helical blade 21 and the second helical blade 22, and barrel 1 is provided with charging aperture 100, the first spiral , side by side in barrel 1, barrel 1 is connected with binding apparatus and passes through the first helical blade 21 for blade 21 and the second helical blade 22 The straw conveying to binding apparatus and compressing with the second helical blade 22, the first helical blade 21 and the second helical blade 22 are by driving Dynamic device drives, and the first helical blade 21 is contrary with the hand of spiral of the second helical blade 22, the first helical blade 21 and second The direction of rotation of helical blade 22 is contrary.

The straw being previously mentioned in this utility model, refers to that Semen Tritici aestivi, Oryza sativa L., Semen Maydiss, Sorghum vulgare Pers. and other grain crops exist Harvest the remainder after seed.

In conjunction with the travel direction of harvester, usually by the good straw of bundling from harvesting drive end unit output, therefore by straw Conveying direction be defined as conveying from the front to the back, in conjunction with Fig. 1 orientation be exactly from left to right conveying straw it can be understood as length Direction, the orientation such as forward and backward accordingly occurring in this utility model describes all as reference.In addition, carrying in this utility model To the conveying direction laterally referring to perpendicular to straw horizontal, bonded products orientation is exactly left and right directions it can be understood as width Degree direction, sees it is simply that above-below direction from Fig. 2.And longitudinally then refer to short transverse.

In this utility model, the first helical blade 21 and the second helical blade 22 can adopt and have axle helical blade, because Larger for pressure in compression process, there is axle helical blade to be easier to meet intensity requirement under equal cost.Certainly meeting by force In the case that degree requires, the first helical blade 21 and the second helical blade 22 can also adopt Shaftless spiral blade, defeated accordingly Send efficiency can also improve.

Barrel 1 extends from the front to the back, and the inner chamber of barrel 1 is used for conveying and compresses straw.End plate 11 is passed through in the front end of barrel 1 Closing, the connecting shaft of the first helical blade 21 and the second helical blade 22 passes through end plate 11 and is rotatably connected on end plate 11.Enter Material mouth 100 can be located at the side wall of barrel 1 it is contemplated that the shape of the follow-up good bundled straw of bundling is cuboid, simultaneously from receipts The overall space of cutting mill considers, charging aperture 100 is generally located in top sidewall or the bottom sidewall of barrel 1, and Fig. 1 employs the former. Certainly it is not excluded for charging aperture 100 is located at the probability of barrel 1 lateral sidewalls.

First helical blade 21 and the second helical blade 22 are arranged side by side, and refer to the first helical blade 21 and the second helical-blade The diameter parallel of piece 22 or close to parallel, close to the parallel angle referring to and there may be less than 15 ° between two axis, Or two axis there may be the angle less than 15 ° between the projection line on same perpendicular.Certain first spiral The spacing of blade 21 and the second helical blade 22 still needs the requirement meeting fit-up gap, and this can be described below.Due to First helical blade 21 and the second helical blade 22 are arranged side by side, therefore barrel 1 width increase, charging aperture 100 laterally wide , more than the axis spacing of two helical blades, charging aperture 100 is bigger, and inlet amount can increase, and straw is within the unit interval for degree Decrement increases, and therefore improves compression efficiency, compares the straw that existing baler can compress 50 mu of crops of bundling for a day Left and right, and this utility model is through overtesting, the straw that can compress 100 mu of crops of bundling in a day.And, the first helical blade 21 and second helical blade 22 compress simultaneously, the pressure being applied on straw is higher, not only can make straw be easier pressed Shorten buttress into, and the pressed density of bundled straw can be improved, equivalent weight lower volume is less, more convenient later collection transport. Simultaneously because the width of barrel 1 increases, the bundled straw width after compression also accordingly increases, and because binding apparatus carries out bundling is Conveying direction along straw carries out tying up around bundled straw bundle, and typically uses two ropes when bundling, so the one-tenth after compressing Bundle straw width increases, and can conveniently distribute rope spacing, improves the reliability of binding, further, since the bundled straw after compression Stalk width increases, and can accordingly shorten the length of the bundled straw after compression, can shorten the length of rope, reduces making of rope Use cost.

First helical blade 21 is contrary with the hand of spiral of the second helical blade 22, the first helical blade 21 and the second spiral The direction of rotation of blade 22 is contrary and dorsad charging aperture 100, the spiral side of the first helical blade 21 and the second helical blade 22 To necessarily realizing what straw conveyed from front to back, therefore limit combining of the hand of spiral and direction of rotation, i.e. a kind of spiral Direction needs specific direction of rotation cooperation just to enable the conveying of material, and this is general knowledge in helical feed field, therefore no longer Describe in detail, several situation of the present utility model can be enumerated below.

The hand of spiral with regard to the first helical blade 21 and the second helical blade 22 and the requirement of direction of rotation, are to allow first Helical blade 21 and the second helical blade 22 opposite direction rotating, dorsad charging aperture 100 refer to from the first helical blade 21 and the second spiral shell The direction of rotation of vane piece 22 is all directed towards feedstock direction in charging aperture 100 position, rather than towards charging aperture 100, charging side To being the direction that straw enters feeding cylinder 1 outside barrel 1 by charging aperture 100, in this utility model feedstock direction be from Downwards, therefore see along the conveying direction of straw, that is, vertical Fig. 3 place paper is seen it is assumed that the first helical blade 21 is located at the second spiral shell The left side of vane piece 22, then the first helical blade 21 is left-handed blade, and the second helical blade 22 is dextrorotation blade, the first helical-blade Piece 21 turns clockwise, the second helical blade 22 rotate counterclockwise.The straw of feeding cylinder 1 is so entered from charging aperture 100, can be fast Straw at charging aperture 100 is drawn in barrel 1 and is extruded, when straw is followed after helical blade rotates a circle already at pressure by speed Contracting state, the straw that would not affect subsequently to enter feeding cylinder 1 from charging aperture 100 continues charging, prevents straw from returning from charging aperture 100 Material causes fed material from being blocked, and straw will be expressed to two spirals by two helical blades after charging aperture 100 enters feeding cylinder 1 simultaneously Between blade, can quickly make mutually to integrate between straw, improve the intensity of bundled straw, be difficult to disperse.Meanwhile, two spirals Blade extrudes in opposite directions, can improve the regularity that straw conveys in barrel 1, improves transfer efficiency.Accordingly, if will feed Mouth 100 has been located at the bottom sidewall of barrel 1 it is also assumed that the first helical blade 21 is located at the left side of the second helical blade 22, then First helical blade 21 is left-handed blade, and the second helical blade 22 is dextrorotation blade, the first helical blade 21 rotate counterclockwise, the Two helical blades 22 turn clockwise, and effect is also the same.

Due to compression requirements have been sufficient for by the compression of two helical blades, therefore it is no longer necessary in prior art The pressure straw articles using, and the weight of two helical blades is simultaneously less, for comparing pressure straw articles, can largely reduce bundling The weight of machine, the actual weight of test products, about at 600 jin about, can reach loss of weight more than 50%, so to harvester The load causing is greatly reduced, and can be not in not only the situation of rollover with the harvesting partial equilibrium weight of harvester, also The oil consumption of harvester can be reduced, the use cost of harvester is declined.Be exactly also two helical blades structure is simple, weight Amount is light, and installing/dismounting is all very convenient, during Product Assembly and follow-up maintenance, all becomes to be more prone to, so this practicality is new Type product is just welcome by experimental field peasant in experimental stage.

Driving means drive two helical blade rotations, can be realized by conventional drive mechanism, in this utility model Then two can be driven by the diesel engine powers of harvester by sprocket wheel-link chain mechanism 3 mate gear mechanism 31 simultaneously Helical blade is it is also possible to drive two helical blades by belt wheel-Timing Belt mate gear mechanism.

Effectively conveyed during compression to realize straw, barrel 1 includes gathering materials along the conveying direction of straw Section 101, feeding section 102 and feeding section 103, charging aperture 100 is located at charging aperture located at section 101 of gathering materials, the starting point of feeding section 102 100 edge, the first helical blade 21 and the second helical blade 22 extend to feeding section 103 from section 101 of gathering materials.From perpendicular to straw See on the conveying direction of stalk, vertically see Fig. 2, section of gathering materials 101 is starting point, the back edge to charging aperture 100 at end plate 11 For terminal, feeding section 102 is with the back edge of charging aperture 100 as starting point, the rear end of spigot surface as terminal, feeding section 103 is to lead To face rear end be starting point, barrel 1 rear end be terminal.Section of gathering materials 101, because being provided with charging aperture 100, coordinates two spirals The collective effect of blade, the straw that charging aperture 100 is entered quickly concentrates kneading, and feeding section 102 is then by the straw after concentrating Stalk carries out primary compression, and feeding section 103 is then that the straw of primary compression is carried out depth-compression, and such reasonable distribution compression is suitable Sequence, can avoid straw from charging aperture 100 returning charge it is ensured that straw charging in order, can improve compression efficiency and transfer efficiency.

See in conjunction with Fig. 3,4 and 5, typically all keep whole plant shape state because straw has just enter into during barrel 1, and through two spirals Can be torn after the extruding of blade, in order to allow same straw when being involved in by different helical blades, can quickly disconnect, The inwall of section of gathering materials 101 is located between the first helical blade 21 and the second helical blade 22 and forms sub-material projection 12, and sub-material is raised 12 are located at the relative both sides of barrel 1 respectively with charging aperture 100, and the height of sub-material projection 12 gradually drops along the conveying direction of straw Low.Sub-material projection 12, similar to blade, when two helical blades rotate and straw is involved in barrel 1, will meet head at once Straw can be cut off by sub-material projection 12, therefore sub-material projection 12 well, be conducive to subsequent compression and conveying, also avoid simultaneously Whole strain straw still can be upspring after having just enter into barrel 1 and rotating a circle with helical blade and be stretched into charging aperture 100 and affect to feed The situations of mouth 100 charging.And the compression with straw conveys, the pressed density of straw is increasing, the effect of sub-material projection 12 Less and less, the conveying of straw can be affected on the contrary, so the height of sub-material projection 12 is gradually lowered along the conveying direction of straw.Point The starting point of height to the feeding section 103 of material raised 12 is reduced to 0, it is to avoid the straw after impact compression is defeated in feeding section 103 Send.

See Fig. 3, in order to ensure the first helical blade 21 and the second helical blade 22 normal work, and compression efficiency with defeated Send and between efficiency, reach balance, the fit-up gap L1 of the first helical blade 21 and the second helical blade 22 is not less than 5mm, that is, first On helical blade 21 and the second helical blade 22, arbitrarily close position can not be less than 5mm, and one can allow straw enter feeding cylinder 1 When have enough space to enter between two helical blades it is ensured that decrement, two come in course of conveying balance transporting resistance with Compression ratio.First helical blade 21 is not less than 15mm, the dress of the second helical blade 22 and barrel 1 with the fit-up gap L2 of barrel 1 Join gap L 3 and be not less than 15mm, reason communicates, and fit-up gap is too small, transporting resistance increases, and to the load of helical blade is Ramp, stall easily occurs.The pitch of helical blade is also intended to parameter, the first helical blade 21 and the second spiral shell considering The pitch of vane piece 22 can be equal, and all pitch on single helical blade are also all equal, and otherwise is less than 150mm.In addition, single helical blade can also be by the way of tapering into, that is, pitch is more less backward, corresponding compression ratio Improve.See Fig. 5, the inner wall smooth of feeding section 103, resistance is little, and bundling case will be entered after feeding section 103, therefore Improving compression ratio in this position is reasonable selection.

In conjunction with Fig. 1 and Fig. 4, in order to allow straw to be easier after charging aperture 100 entrance to be wound up into helical blade and backward Conveying, prevents the straw returning charge in barrel 1 further, and the inwall that feeding section 102 is located at charging aperture frontside edge is provided with spigot surface 13, the axis of the axis laterally across the first helical blade 21 for the spigot surface 13 and the second helical blade 22, spigot surface 13 is along straw Conveying direction extend to the starting point of feeding section 103 and move closer to the first helical blade 21 and the second helical blade 22.Guiding The axis laterally across the first helical blade 21 for the face 13 and the axis of the second helical blade 22, therefore cover width is larger, in conjunction with Spigot surface 13 can extend back along camber line it is also possible to extend back along straight line, is gradually compressed with straw, spigot surface 13 Move closer to the first helical blade 21 and the second helical blade 22, be not in that straw is pressed to charging aperture because of compressing suddenly 100 situation.

In addition, seeing with reference to Fig. 1 and 3, in order to improve transfer efficiency in barrel 1 for the straw, it is to avoid straw seizes, in barrel 1 inwall is provided with guide groove 14, and guide groove 14 extends along the conveying direction of straw.Guide groove 14 can arrange a plurality of, One can also be arranged but increase width.Guide groove 14 is generally located on the inwall of barrel 1 both lateral sides, that is, have just enter into barrel Guide groove 14 can be entered, straw is easier and can have more after first passing through certain compression about 1 straw half rotation Many straws enter guide groove 14, and the effect of guide groove 14 can preferably be embodied.

See in conjunction with Fig. 1 and 2, binding apparatus includes bundling case 4, wire twister 5 and slotting tool 6, wire twister 5 includes the first reciprocating engine Structure 51 and knotting shank 52, knotting shank 52 is rotatably connected on bundling case 4, and wire twister 5 is prior art, can be directly from city Purchase on field, the operation principle of wire twister 5 is similar to trying to make a match of sewing machine.First reciprocator 51 can adopt crank connecting link Mechanism, knotting shank 52 is normally at the bottom of bundling case 4 and swings from bottom to top to tie a knot, and knotting shank 52 adopts arc to tie Structure, and the center of circle of arc overlapped with the oscillation center of knotting shank 52, in order to reduce knotting shank 52 through bundled straw Resistance, repeat no more here.

Very high through the pressed density of the bundled straw of two helical blade extruding, the finger of general adult is all difficult To insert, cannot automatically drop as the existing gravity relying on bundled straw after bundling therefore in discharging, and need increase to cut Disconnected device.Because the pressed density of the bundled straw after compression is high, so the load being cut off using the device of chopper class Larger, effect is unsatisfactory, adopts discrete slotting tool 6, cut by multiple slotting tools 6 on bundled straw therefore in this utility model Cut out through hole, the therefore cut-out in this utility model non-immediate cut-out, but the good bundled straw of bundling after slotting tool 6 cutting The bonding strength of stalk and previous section declines a lot, and bundled straw can rely on becoming of self gravitation and previous section in discharging Bundle straw disconnects and automatically drops.

In structure shown in Fig. 2, slotting tool 6 is fixed as one with knotting shank 52, the motion of slotting tool 6 and knotting shank 52 Direction is identical, and the length of slotting tool 6 is shorter than the length of knotting shank 52, and driving means are passed through the first reciprocator 51 and driven knotting pin Bar 52 and slotting tool 6 swing work.The bundled straw having compressed is cut by slotting tool 6 interval insertion bundling case 4.

Slotting tool 6 with knotting shank 52 be fixed as one, therefore both be synchronized with the movement, slotting tool with knotting shank be arranged side by side and Bearing of trend is identical, and that is, the structure of slotting tool 6 is also adopted by arcuate structure, the oscillation center weight of the center of circle of arc and knotting shank 52 Close, it is possible to reduce slotting tool 6 inserts the resistance of motion in bundled straw.The width of slotting tool 6 is less, and the cutter head of slotting tool 6 adopts triangle Shape prong structure, easily in the bundled straw of insertion compression consolidation, slotting tool 6 has been arranged side by side many in the horizontal, and usually three To five, can be determined according to the width of bundling case 4.Knotting shank 52 typically arranges two, and therefore in the present embodiment, slotting tool 6 sets Put three, so with knotting shank 52 interval setting, be synchronized with the movement and non-interference, also preferably cut off effect.Insert for every The cutter head of knife 6 is all located at diverse location, and that is, the time in every slotting tool insertion straw is different, can disperse straw pair from the time The resistance of slotting tool.

Slotting tool 6 is arranged on existing wire twister 5, does not have change to existing structure, but the effect after improving Substantially, it is particularly suitable in the machine to convey compression straw using helical blade.

In addition, as shown in fig. 7, slotting tool 6 can also be separately provided.Space for harvester considers, slotting tool 6 with beat Knot shank 52 is located at the relative both sides of bundling case 4 respectively, and therefore slotting tool 6 is located at the top of bundling case 4, and slotting tool 6 is perpendicular to straw Conveying direction move back and forth relative to bundling case 4, that is, move up and down, driving means by the second reciprocator 53 carry active slotting-tool 6 Move back and forth work.Second reciprocator 53 similarly using conventional line reciprocator, is employed herein slide crank Block mechanism.

Slotting tool 6 can first carry out cutting work, wears the through hole then being formed after slotting tool 6 cuts by knotting shank 52 again Cross and tied a knot, so can reduce the resistance of knotting shank 52 motion, reduce the probability of knotting shank 52 deformed damaged.

Because wire twister 5 will carry out bundling after bundled straw conveying certain length, accordingly, slotting tool 6 is also interval Work, and two helical blades rotations of driving means drive are continuous, for this in driving means and the first reciprocator 51 Between and and the second reciprocator 53 between arrange clutch, need knotting and cut when, clutch engage, drive dress Put drive the first reciprocator 51 and the second reciprocator 53 makes knotting shank 52 and slotting tool 6 work.And after the completion of knotting, from Clutch disengages, and rejoins when waiting knotting next time and cut-out work.

In this utility model, bundling case 4 is connected as one by connecting box 7 with barrel 1, and connecting box 7 is connected with barrel 1 One end cross sectional shape be the cross sectional shape of one end that track type or ellipse, connecting box 7 are connected with bundling case 4 be rectangle, See that the transverse width of Fig. 7, track type or ellipse is more than the transverse width of rectangle, the longitudinal direction of track type or ellipse is highly less than The longitudinally height of rectangle, the area of track type or ellipse is more than the area of rectangle.Track type is that two circular arcs are parallel with two Linear interval connects the shape being formed.Because in order to coordinate helical blade, the both lateral sides of barrel 1 are arc structures, and bundling What device exported is the bundled straw of cuboid, to change the shape of bundled straw hence with connecting box 7, bundled straw is from material After cylinder 1 is transitioned into bundling case 4, transverse width diminishes, and longitudinally height becomes big, but because the area of track type or ellipse is big In the area of rectangle, so bundled straw still can be compressed when connecting box 7, improve compression ratio further.Due to becoming Bundle straw molding, therefore connecting box 7 inwall and bundling case 4 inwall can be not provided with other structures, and processes very Smooth, consequently facilitating bundled straw still assures that transfer efficiency after further compression.The center of track type or ellipse is permissible It is centrally located on a straight line parallel to straw conveying direction with rectangle, when so conveying straw, resistance can reduce.

See Fig. 1, in this utility model, in order to tackle the straw of different crops and adjust different pressed densities, beat It is provided with adjustable plate 41, adjustable plate 41 is provided with adjusting nut 42, and bundling case 4 is provided with adjusting rod 43, and adjusting rod 43 is worn in bundle case 4 Overregulate nut 42 to be coordinated, adjusting rod 43 rotation makes the inwall of adjustable plate 41 bundling case 4 relatively swing to adjust bundling case 4 Cross-sectional area.Adjustable plate 41 can be arranged on a wall of bundling case 4 inwall it is also possible to be arranged on multiple walls, As shown in figure 1, being provided with adjustable plate 41 on two walls up and down of bundling case 4, by the synchronous two pieces of adjustable plates of adjusting rod 43 41, two pieces of adjustable plate 41 move toward one another or deviate from motion, thus change the cross-sectional area of bundling case 4 so that bundled straw leads to Out-of-date resistance changes, and after the cross-sectional area of bundling case 4 diminishes, transporting resistance increases, and improves the compression of bundled straw Density, contrary, after the cross-sectional area of bundling case 4 becomes big, transporting resistance reduces, and reduces the pressed density of bundled straw.Adjust Bar 43 can be with manual operation it is also possible to electric operating.In addition pressure sensing can be set in bundling case 4 inwall or material tube inner wall Device, is automatically brought into operation to adjusting rod 43 by the Data Control motor of pressure transducer, thus realizing automatically adjusting bundled straw The pressed density of stalk.

Length adjuster 8 with clutch engagement work can be arranged on bundling case 4, length adjuster 8 has one Pointed tooth roller 81, the pointed tooth of pointed tooth roller 81 can be inserted in bundled straw, during bundled straw conveys backward, can drive Pointed tooth roller rotates, and length adjuster obtains the fed distance of bundled straw by the rotation number of turns measuring pointed tooth roller, when When reaching preset distance value, clutch engages, and slotting tool and wire twister work, and the bundled straw of a bundle predetermined length is just from bundling case Rear end exports.

In addition to above preferred embodiment, this utility model also has other embodiments, and those skilled in the art can root It is variously modified according to this utility model and deforms, without departing from spirit of the present utility model, this utility model all should be belonged to Scope as defined in the claims.

Claims (10)

1. twin screw compression straw baler it is characterised in that：Including twin screw straw compression device, binding apparatus and driving dress Put, twin screw straw compression device includes barrel, the first helical blade and the second helical blade, barrel is provided with charging aperture, the first spiral shell , side by side in barrel, barrel is connected with binding apparatus and passes through the first helical blade and second for vane piece and the second helical blade Helical blade conveys straw to binding apparatus, and the first helical blade and the second helical blade are driven by driving means, the first spiral Blade is contrary with the hand of spiral of the second helical blade, the direction of rotation of the first helical blade and the second helical blade contrary and Dorsad charging aperture.

2. twin screw according to claim 1 compression straw baler it is characterised in that：Described barrel is along the conveying of straw Direction includes gather materials section, feeding section and feeding section, and located at section of gathering materials, the starting point of feeding section is located at the edge of charging aperture to charging aperture, First helical blade and the second helical blade extend to feeding section from section of gathering materials.

3. twin screw according to claim 2 compression straw baler it is characterised in that：The inwall of described section of gathering materials is located at Form sub-material raised, sub-material is raised relative positioned at barrel respectively with charging aperture between first helical blade and the second helical blade Both sides, the raised height of sub-material is gradually lowered along the conveying direction of straw.

4. twin screw according to claim 2 compression straw baler it is characterised in that：Charging is located on described feeding section The inwall at mouthful edge is provided with spigot surface, the axis of the axis laterally across the first helical blade for the spigot surface and the second helical blade, Spigot surface extends to the starting point of feeding section and moves closer to the first helical blade and the second helical blade along the conveying direction of straw.

5. twin screw according to claim 1 compression straw baler it is characterised in that：Described charging aperture is located at barrel Top, the conveying direction along straw is seen, the first helical blade is located at the left side of the second helical blade, and the first helical blade is left-handed Blade, the second helical blade is dextrorotation blade, and the first helical blade turns clockwise, the second helical blade rotate counterclockwise；

Or, described charging aperture is located at the bottom of barrel, and the conveying direction along straw is seen, the first helical blade is located at the second spiral The left side of blade, the first helical blade is dextrorotation blade, and the second helical blade is left-handed blade, and the first helical blade revolves counterclockwise Turn, the second helical blade turns clockwise.

6. according to the arbitrary described twin screw compression straw baler of claim 1 to 5 it is characterised in that：Described barrel interior Wall is provided with guide groove, and guide groove extends along the conveying direction of straw.

7. twin screw according to claim 1 compression straw baler it is characterised in that：Described binding apparatus includes bundling Case, wire twister and slotting tool, wire twister includes the first reciprocator and knotting shank, and knotting shank is rotatably connected on bundling case, Slotting tool is fixed as one with knotting shank, and slotting tool is arranged side by side with knotting shank and bearing of trend is identical, and the length ratio of slotting tool is beaten The length of knot shank is short, and driving means are passed through the first reciprocator and driven knotting shank and slotting tool swing work.

8. twin screw according to claim 1 compression straw baler it is characterised in that：Described binding apparatus includes bundling Case, wire twister and slotting tool, wire twister includes the first reciprocator and knotting shank, and knotting shank is rotatably connected on bundling case, Driving means are passed through the first reciprocator and are driven knotting shank swing work, and slotting tool is relative positioned at bundling case respectively with knotting shank Both sides, slotting tool perpendicular to straw conveying direction relative to bundling case move back and forth, driving means pass through second reciprocator band Active slotting-tool motion work.

9. according to claim 7 or 8 twin screw compression straw baler it is characterised in that：Described bundling case and barrel Connected as one by connecting box, the cross sectional shape of one end that connecting box is connected with barrel is track type or ellipse, connecting box The cross sectional shape of the one end being connected with bundling case is rectangle, and the transverse width of track type or ellipse is more than the laterally wide of rectangle The longitudinally height of degree, track type or ellipse is less than the longitudinally height of rectangle, and the area of track type or ellipse is more than rectangle Area.

10. according to claim 7 or 8 twin screw compression straw baler it is characterised in that：It is provided with described bundling case Adjustable plate, adjustable plate is provided with adjusting nut, and bundling case is provided with adjusting rod, and adjusting rod is coordinated through adjusting nut, adjusts Pole rotation makes adjustable plate swing to adjust the cross-sectional area of bundling case relative to the inwall of bundling case.