CN106973629A - A kind of clamping conveying device for maize picker - Google Patents

Abstract

The invention discloses a kind of clamping conveying device for maize picker, including：Clamp chain；Chain pressing plate, it is arranged on the inner side of the clamping chain, is supported with the side clamped to clamping chain to be used for；Lath is clamped, it is in strip, and the side clamped with clamping chain to be used for be arranged in parallel, and the passage that maize straw passes through is left between the clamping lath and clamping chain；It is described clamp lath can around along its length eccentric axis rotation, make its turn an angle after inside edge to clamp chain it is close so that the channel narrows that maize straw passes through；Return mechanism, it is connected with the clamping lath, limits the anglec of rotation of chain pressing plate and the torque of initial position is added back to for clamping plate row replacement.

Description

A kind of clamping conveying device for maize picker

Technical field

The invention belongs to agricultural machinery technological field, more particularly to a kind of clamping conveying device for maize picker.

Background technology

The corn harvesting machine commonly used on domestic market is generally sleeping roll-type and vertical roll corn harvester, and it was harvested Corn ear is taken by way of maize straw is pullled in extruding by a pair of rigid rollers in journey, corn-cob picking procedure easy damaged fruit Fringe, damages serious to stalk, and kinetic equation loss is quite big, to reaching the energy-saving and emission-reduction of promotion, to reaching nowadays Maize Stem fringe The requirement all received is very unfavorable.

This problem is damaged to stalk and fruit ear for conventional machines harvesting, now it is proposed that bionical bending harvesting side Formula, its ear-picking principle is to clamp to treat a certain position in harvesting maize straw fruit ear top by gripping conveyor structure, by maize straw The corn snapping unit that main working parts are snapping bar is fed, corn ear is in the lower position of snapping bar, gripping conveyor Structure is lifted up in course of conveying, and snapping bar is bent to corn ear and conveyed backward by rotation, is completed harvesting and is moved Make.Therefore snapping bar does not have squeezing action power to fruit ear in corn-cob picking procedure, to stalk not damaged, and fruit ear is without chewing, Er Qiejie Save power.But high is required to gripping conveyor structure, on the one hand require to ensure to provide that the chucking power of harvesting can be successfully completed, On the other hand require to reduce again to crush maize straw.But the gripping conveyor structure of bionical bending harvesting be applied to now Chucking power is difficult to control, and is easily caused and is crushed stalk either chucking power deficiency is difficult to complete harvesting or chucking power crosses macrolesion straw Stalk；And it clamps serious wear in the critical piece course of work, friction power loss is big, complicated.Therefore the invention has been carried out Probe into, it is intended to design and a kind of solve the folder that above-mentioned chucking power is difficult to adjust, the performance of the problems such as rubbing big greatly of consuming energy is more excellent Hold method and apparatus.

The content of the invention

The defect that accommodating power present invention aim to address existing clamping conveying device can not be adjusted is clamped there is provided one kind The clamping for maize picker of harvesting power size adjust automatically needed for of the big I of chucking power, which is conveyed, in course of conveying fills Put.

The technical scheme that the present invention is provided is：

A kind of clamping conveying device for maize picker, including：

Clamp chain；

Chain pressing plate, it is arranged on the inner side of the clamping chain, propped up with the side clamped to clamping chain to be used for Support；

Lath is clamped, it is in strip, the side clamped with clamping chain to be used for be arranged in parallel, the clamping lath and folder The passage that maize straw passes through is left between tight chain；The lath that clamps can rotate around eccentric axis along its length, Make its turn an angle after inside edge to clamp chain it is close so that the channel narrows that maize straw passes through；

Return mechanism, it is connected with the clamping lath, limits the anglec of rotation of chain pressing plate and applies for clamping plate bar Return to the torque of initial position.

Preferably, the clamping chain is in closed hoop, two sprocket wheels of arrangement before and after the clamping chain is set in On, tightener sheave is provided between two sprocket wheels, the tightener sheave is in contact with clamping on the inside of chain, and the tensioning rolling Wheel can be moved in the width direction with tension adjusting.

Preferably, it is provided with sprocket on the outside of described each chain link of clamping chain.

Preferably, the chain pressing plate is in Z-shaped, and its lower edge extends laterally and support clamps chain upwards；Institute State and be provided with the baffle plate being fixedly installed below chain pressing plate.

Preferably, the chain pressing plate rear and front end is respectively arranged with spring compression mechanism, to apply to chain pressing plate Pressure laterally；The spring compression mechanism includes：

Support base, it is fixed on support, and the long waist type sliding eye extended along its length is provided with the support base；

Sliding axle, it is fixed on chain pressing plate, and the sliding axle is engaged with sliding eye；

Spring, it is arranged between support base and chain pressing plate, and is set on the outside of sliding axle.

Preferably, the chain pressing plate is fixedly arranged in the middle of on slide plate, the slide plate and is provided with what is extended in the width direction Long waist-shaped hole, bolt is fixedly mounted on base through the long waist-shaped hole on slide plate, is moved along its length with limiting chain pressing plate It is dynamic.

Preferably, the clamping lath lateral surface is provided with rectangular teeth.

Preferably, the section for clamping lath is octagon.

Preferably, the return mechanism includes：

Postive stop baffle, it is fixed on clamping lath；The postive stop baffle rear end is fixed with limit shaft；The postive stop baffle Rear end is additionally provided with extension spring mounting hole；

Limited block, it is fixed on support, and deep-slotted chip breaker installation, the limit shaft and deep-slotted chip breaker are provided with the limited block Coordinate；

Extension spring, its one end is fixed on extension spring mounting hole, and the other end is fixed on support.

Preferably, the front end of the clamping conveying device is provided with nearside divider, and guide plate is fed in rear end after being provided with.

The beneficial effects of the invention are as follows：

1st, the chucking power size to maize straw can be automatically adjusted according to harvesting power size, it is to avoid tradition clamping conveying dress The geometrical clamp holding force put can't clip when setting the plant harvesting thinner to stalk causes harvesting failure or thicker to plant Stalk chucking power is excessive to be caused pinch off to stalk, crushes maize straw；

2nd, for the adaptive of different harvesting power, the friction in course of conveying is reduced, reduces energy expenditure, is conducive to section Save power；

3rd, the side that this clamping structure for conveying employs fixed board, dynamic chain is combined unlike relatively more traditional clamping structure for conveying Formula configuration structure, more traditional dual-chain clamping structure reduces complexity, improves the reliability and stability of machine operation；

4th, this gripping conveyor structure main working parts use big carrier bar away from chain, the clamping plate of larger width, to corn Stalk multi-point support, can prevent toppling in stalk course of conveying；

5th, the chain for being v in feeding direction speed works with hastening for 0 clamping plate configuration mode, can make stalk in frictional force In the presence of do small rotation, one coordinate the corn snapping unit to carry out Ear-Attitude adjustment, and two reduce the friction with clamping plate；

6th, clamping forces stalk motion, therefore clogging is not likely to produce in operation process using band toothed chain bar.

Brief description of the drawings

Fig. 1 is the clamping conveying device general structure schematic diagram of the present invention for maize picker.

Fig. 2 is the anti-bending supporting construction schematic diagram of clamping chain of the present invention.

Fig. 3 is to prevent chain pressing plate in conveying direction play slide plate attachment structure schematic diagram

Fig. 4 be in Fig. 3 A-A to sectional view.

Fig. 5 is chain pressing plate spring tensioning mechanism attachment structure schematic diagram.

Fig. 6 is B-B direction sectional view in Fig. 5.

Fig. 7 is clamping lath mounting connection structure schematic diagram.

Fig. 8 is C direction views in Fig. 7.

Fig. 9 returns theory structure schematic diagram in situ automatically to clamp lath.

Figure 10 is the clamping spacing theory structure schematic diagram of lath.

Figure 11 is the structural representation for clamping lath.

Figure 12 be in Figure 11 D-D to sectional view.

Figure 13 is left straw-distributing unit part and left frame attachment structure schematic diagram.

Figure 14 feeds guide plate and left frame attachment structure schematic diagram after being.

Figure 15 is clamping chain structural representation.

Figure 16 is maize straw not by clamping chain during harvesting power and clamping lath operating diagram.

Figure 17 is maize straw by clamping chain during harvesting power and clamping lath operating diagram.

Embodiment

The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text Word can be implemented according to this.

As shown in figure 1, the invention provides a kind of clamping conveying device for maize picker, the main auxiliary that includes is fed The nearside divider entered, the gripping conveyor structure being made up of clamping lath and grasping conveyance chain, chain hold-down mechanism clamps lath limit Position and automatic resetting mechanism, described frame can be arranged on cropper after repacking, and it installs number according to corn Harvest line number required by harvest machinery is determined.

As shown in figure 1, corn picker clamping conveying device by with left frame 20 and all parts installed thereon and Right frame 1 and all parts composition installed thereon.Its middle sprocket, chain and its compression and tension structure are arranged on right frame 1 Above；Clamp lath 26 and its spacing, automatic resetting mechanism that works is arranged on left frame 20.Left frame 20 and right frame 1 are received The machine frame of obtaining is fixedly connected.

Clamp chain 15 and bypass tension rollers 8 on drive sprocket 17 and driven sprocket 2, drive sprocket 17 passes through key It is connected on driving shaft 16, driving shaft 16 is arranged on above right frame 1 by bearing block.Driven sprocket 2 has endoporus, its endoporus with Bearing outer ring disposed within coordinates, and bearing inner race coordinates with driven shaft 3, and driven shaft 3 is fixed on right frame 1 by screw nut On.During work, driven sprocket 2 is rotated, and driven shaft 3 is fixed, and tension rollers 8 are arranged on tension pulley support 9, tension pulley support 9 It is welded in frame 1, there is long waist-shaped hole on tension pulley support 9, tension rollers 8 can be moved and then produced on tension pulley support 9 The effect of tension chain.

Clamping conveyor structure is in hold assembly initial position, and clamping has an initial folder between chain 15 and clamping lath 26 Clamp force, its initial clamping force is provided by chain pressing plate mechanism.The chain pressing plate mechanism includes chain pressing plate 13, and two structures are complete Exactly the same spring compression mechanism, the laterally free degree limiting mechanism of a chain pressing plate 13；The structure of chain pressing plate 13 and its With chain 15, the schematic view of the mounting position of baffle plate 7 is as shown in Fig. 2 pressing plate 13 is Z-shaped, and its lower edge is on whole lateral length Chain 15 is held, prevents chain 15 from being bent by harvesting, causes chain failure；The one end of baffle plate 7 is joined with frame 1 by bolt, separately Outer one end support is below pressing plate 13, and pressing plate 13 can be on the surface of baffle plate 7 slidably.The laterally free degree for clamping chain 13 As shown in Figure 3, Figure 4, pressing plate 13 and slide plate 10 are integrally welded for limiting mechanism, and base 12 is bolted in right frame 1, There is long waist-shaped hole on slide plate 10, bolt 11 is arranged on base 12 through the waist-shaped hole on slide plate 10, and bolt is higher by slide plate 10 Surface certain distance, so pressing plate 13 and slide plate 10 can be slided in y directions, and can rotate around the axis of bolt 11, it is made With the movement for being the x directions for limiting pressing plate 13.Described two completely identical in structure spring compression mechanisms just like Fig. 5, Fig. 6 Shown, the bottom of sliding axle 4 is welded on pressing plate 13, the other end be arranged on support base 5 long waist-shaped hole in, and support base 5 with Spring 6 is housed, the end of sliding axle 4 is screwed with nut to prevent it from skidding off in waist-shaped hole between pressing plate 13；This structure function is The elastic force of spring 6 is passed to by clamping chain 15 by pressing plate 13, clamping maize straw for it provides clamping force, wherein support base Long waist-shaped hole on 5 is in order to which pressing plate 13 does small rotation in the axial line around bolt 11 when ensureing because of clamping diameter difference stalk When block.

The clamping lath mounting structure signal on left frame 20 as shown in Figure 7, Figure 8, clamps lath 26 Section is 8 side shapes, and its two ends is arranged on front and rear support base 19 and 27 by the spindle nose of welding, two spindle nose coaxial lines but its axis Not in the centre of form of 8 side shapes, but clamping lath 26 can rotate around two spindle nose axis；Front and rear support base 19 and 27 is fastened by bolts On left frame 20.

The spacing and self-return structure schematic diagram for clamping lath 26 is as shown in figure 9, postive stop baffle 24 passes through spiral shell Nail is fixed on clamping lath 26, and the one end of limit shaft 25 is welded on postive stop baffle 24, and other end passes through the arc of limiting plate 21 Shape groove is installed, and there is aperture the end of postive stop baffle 24, and extension spring 22 is hung with thereon, and extension spring 22 is in the course of the work clamping lath 26 Aligning torque is provided.As shown in Figure 10, wherein initial position is as illustrated, when clamping lath 26 for the arrangement works simplified schematic diagram Rotated when receiving stalk pulling force around axle A, and drive 24,25 to be rotated by axis of A, deep-slotted chip breaker of the sliding axle 25 in limiting plate 21 It is interior to slide, the length limitation of deep-slotted chip breaker clamping lath 26 rotatable angle；Stretched simultaneously in the rotary course of postive stop baffle 24 Extension spring 22, after harvesting terminates, corn snapping unit disappears to the pulling force of maize straw, to clamp the power that lath 26 provides turning moment Disappear, the pulling force of extension spring 22, which pulls 24 and then driven, clamps 26 times original positions of lath.

As shown in Figure 11, Figure 13, the concrete structure of lath 26 is clamped.It is 8 side shapes to clamp lath section, is welded on its both sides Elongated rectangular shape tooth is connected to, to increase the grasp force to maize straw；Spindle nose, two are respectively welded on the both ends of the surface of lath 26 are clamped Spindle nose coaxial line, but be eccentric structure not on the side shape centre of form of lath section 8 is clamped, thus axle center to 8 in shape on each point away from From difference.

As shown in Fig. 1, Figure 13, left straw-distributing unit 28 is used for point standing grain and maize straw feeding conveying mechanism is oriented to； Its front end bending part plays a point standing grain effect, and rear end straight panel and clamping chain interoperation play guiding feeding effect.As illustrated, its Rear end is bolted on support base 27, and front end is bolted in frame 20.Right straw-distributing unit 29 with a left side point standing grain Device 28 is arranged symmetrically.

Reference picture 14 and with reference to shown in Fig. 1, it is rear to feed guide plate 18 and be bolted on support base 19；Its effect is Coordinate with clamping chain 15, the maize straw after harvesting be oriented to and feeds.

Reference picture 15 is clamps the specific structure of chain 15, and its chain is band facewidth chain, and its internal segment inner width is larger.Together When reference picture 16, Figure 17, during work clamp lath 26 work in above and below chain between carrier bar.Because clamp chain internal segment inner width compared with Greatly, lath clamping working position width is clamped also larger, thus it is larger to the bearing height of maize straw during work, corn can be prevented Stalk is toppled over, at the same it is larger with maize straw contact area, therefore its pressure to stalk is smaller, can reduce the damage to stalk.

Reference picture 16, Figure 17, during initial feeding position, as shown in figure 16, clamping lath is in initial position, by chain The support spring 6 of pressing plate clamps stalk, and this clamping force is smaller, therefore transporting resistance is smaller.With entrance harvesting active section, snapping bar Start capture corn ear and bend downwards, stretch, maize straw is by harvesting power F harvestings, so as to drive maize straw downward Motion, maize straw rotates with clamping lath 26 because being driven in the presence of frictional force and clamping lath 26 around its mounting axis, folder Hold the rotating shaft axis of lath 26 and transfer increase with the dextrorotation of clamping lath 26 to stalk retaining part vertical range, that is, clamp Gap between lath 26 and clamping chain 15 reduces, chucking power increase；Snapping bar is got over to the tensile force F for passing to maize straw Greatly, maize straw drives the clamping lath anglec of rotation bigger, that is, clamps lath rotation axis and hanging down for clamped position is contacted with stalk Straight distance is bigger, and the spacing clamped between lath and clamping chain is smaller and then bigger to maize straw chucking power.Such as Figure 17 institutes Show, after harvesting terminates, harvesting power F disappear, clamp lath 26 pull stalk homing in the presence of returning pull-spring 22, with compared with Small chucking power conveys the stalk after harvesting backward, to reduce power consumption.

Reference picture 1, Figure 10, Figure 16, Figure 17, this maize straw, which clamps the conveying device course of work, is：1) jade in growing Rice plant is under the cutting of cutting knife in the harvesting ceding of Taiwan；2) by nearside divider feeding clamping conveying device；3) clamping chain tooth capture by The stalk of nearside divider feeding, is transported to clamping lath active section；4) ear-picking unit capture fruit ear, starts stretching bending harvesting；5) Stalk is by F in harvesting, and stalk is slided and drives clamping lath rotation, and clamping force is increased to and harvesting dynamic balance；6) harvesting terminates, Clamp lath and go back to original position；7) stalk rearward feeds, and is further processed by follow-up work machine.

The frictional force f for the vertical direction that above-mentioned clamping conveying device is produced to stalk clamping force is all the time with stalk by vertical The power F in direction is equal.

Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited In specific details and shown here as the legend with description.

Claims (10)

1. a kind of clamping conveying device for maize picker, it is characterised in that including：

Clamp chain；

Chain pressing plate, it is arranged on the inner side of the clamping chain, is supported with the side clamped to clamping chain to be used for；

Lath is clamped, it is in strip, the side clamped with clamping chain to be used for be arranged in parallel, the clamping lath and clamp chain The passage that maize straw passes through is left between bar；The lath that clamps can make it around eccentric axis rotation along its length Inside edge is close so that the channel narrows that maize straw passes through to chain is clamped after turning an angle；

Return mechanism, it is connected with the clamping lath, limits the anglec of rotation of chain pressing plate and is added back to for clamping plate row replacement The torque of initial position.

2. the clamping conveying device according to claim 1 for maize picker, it is characterised in that the clamping chain In closed hoop, before and after the clamping chain is set on two sprocket wheels of arrangement, tightener sheave is provided between two sprocket wheels, The tightener sheave is in contact with clamping on the inside of chain, and the tightener sheave can be moved in the width direction to adjust tensioning Power.

3. the clamping conveying device according to claim 2 for maize picker, it is characterised in that the clamping chain Sprocket is provided with the outside of each chain link.

4. the clamping conveying device according to claim 3 for maize picker, it is characterised in that the chain pressing plate In Z-shaped, its lower edge extends laterally and support clamps chain upwards；It is provided with what is be fixedly installed below the chain pressing plate Baffle plate.

5. the clamping conveying device according to claim 4 for maize picker, it is characterised in that the chain pressing plate Rear and front end is respectively arranged with spring compression mechanism, to apply pressure laterally to chain pressing plate；The spring compression mechanism Including：

Support base, it is fixed on support, and the long waist type sliding eye extended along its length is provided with the support base；

Sliding axle, it is fixed on chain pressing plate, and the sliding axle is engaged with sliding eye；

Spring, it is arranged between support base and chain pressing plate, and is set on the outside of sliding axle.

6. the clamping conveying device according to claim 5 for maize picker, it is characterised in that the chain pressing plate The long waist-shaped hole for being provided with and extending in the width direction on slide plate, the slide plate is fixedly arranged in the middle of, bolt passes through the long waist on slide plate Type hole is fixedly mounted on base, is moved along its length with limiting chain pressing plate.

7. the clamping conveying device according to claim 6 for maize picker, it is characterised in that the clamping lath Lateral surface is provided with rectangular teeth.

8. the clamping conveying device according to claim 7 for maize picker, it is characterised in that the clamping lath Section be octagon.

9. the clamping conveying device according to claim 8 for maize picker, it is characterised in that the return mechanism Including：

Postive stop baffle, it is fixed on clamping lath；The postive stop baffle rear end is fixed with limit shaft；The postive stop baffle rear end It is additionally provided with extension spring mounting hole；

Limited block, it is fixed on support, and deep-slotted chip breaker installation is provided with the limited block, and the limit shaft is matched somebody with somebody with deep-slotted chip breaker Close；

Extension spring, its one end is fixed on extension spring mounting hole, and the other end is fixed on support.

10. the clamping conveying device for maize picker according to any one in claim 1-9, its feature exists In the front end of the clamping conveying device is provided with nearside divider, and guide plate is fed in rear end after being provided with.