CN206350324U - A kind of vegetable harvester cutting knife harvesting structure - Google Patents

Abstract

The utility model provides a kind of vegetable harvester cutting knife harvesting structure, belongs to agricultural machinery technological field, including frame, knife combination and transmission mechanism；Frame includes the first housing and the second housing being oppositely arranged, and the two ends of knife combination are connected to the first housing and the second housing, and knife combination drives work by transmission mechanism；Knife combination includes the first cutter, the second cutter and the 3rd cutter being stacked, and the first cutter and the adjacent side of the second cutter are provided with sawtooth；First cutter is fixedly connected with the first housing and the second housing, and the second cutter is flexibly connected with the first housing and the second housing；3rd cutter is flexibly connected with the first housing and the second housing.This device can beat to the clod on vegetables, and the vegetables of harvesting are cleaner.

Description

A kind of vegetable harvester cutting knife harvesting structure

Technical field

The utility model is related to agricultural machinery technological field, is gathered in particular to a kind of vegetable harvester with cutting knife Structure.

Background technology

At present, agricultural production mechanization has very important meaning for the construction and development of modern agriculture.With existing For rural urbanization and agrotechnical fast development, the Agriculture Production Modes of traditional dependence tactics of human sea can not be kept up with now For the paces of socio-economic development, agricultural production mechanization turns into the inevitable choice of modern agricultural development.For gathering in vegetables Although the existing many types of plant equipment, general all fairly simple, function is few, is not suitable for large-scale Vegetable Base and uses.

The cutting knife of harvester is merely able to apply unidirectional horizontal force when gathering in vegetables now.Therefore in harvesting process pole The soil for easily occurring adhering on vegetables is larger in equal volume, it is difficult to remove, and substantial amounts of man power and material is still needed to after harvesting and is carried out clearly Remove, not only have impact on harvesting efficiency, while wasting ample resources, be unfavorable for the popularization and application of equipment.

The content of the invention

The utility model provides a kind of vegetable harvester cutting knife harvesting structure, it is intended to solve the above problems.

What the utility model was realized in：A kind of vegetable harvester cutting knife harvesting structure, including frame, knife combination And transmission mechanism；The frame includes the first housing and the second housing being oppositely arranged, and the two ends of the knife combination connect respectively First housing and the second housing are connected to, the knife combination passes through the transmission mechanism driving work.

The knife combination includes the first cutter, the second cutter and the 3rd cutter that are stacked, first cutter and The adjacent side of second cutter is provided with sawtooth.

First cutter is fixedly connected with first housing and the second housing, second cutter and first housing And second housing be flexibly connected, and by the second cutter described in the driving effect of the transmission mechanism can along the sawtooth length Do straight reciprocating motion in degree direction.

3rd cutter is flexibly connected with first housing and the second housing, and passes through the driving of the transmission mechanism Straight reciprocating motion can be done along perpendicular to the direction of second cutter by acting on the 3rd cutter.

Preferably, multiple first through hole are interval with along the length direction of sawtooth on second cutter, described first leads to Hole is bar hole, and the length direction of first through hole is consistent with the length direction of the sawtooth.

Multiple fifth holes are interval with along the length direction of sawtooth on 3rd cutter, the fifth hole is bar shaped Hole, and the length direction of the length direction of fifth hole and the sawtooth is perpendicular.

The first through hole has coincidence part with the fifth hole, and the knife combination includes running through the fifth hole And the pilot pin of the first through hole, the bottom of the pilot pin is connected to first cutter, and the top of the pilot pin is prolonged Extend outside the 3rd cutter.

The diameter of the pilot pin is consistent with the width of the fifth hole.

Preferably, the transmission mechanism includes head rod and the second connecting rod, and the head rod and second connect Extension bar is connected to the relative two ends of second cutter；The head rod is from the 3rd on first housing Through hole is worn to first enclosure interior, and second connecting rod is worn to described from the fourth hole on second housing Second enclosure interior, the head rod can be slided in the third through-hole, and second connecting rod can be described Slided in fourth hole.

Preferably, the one end of the head rod away from second cutter has hemisphere block, the diameter of the hemisphere block More than the diameter of the head rod, the sphere of hemisphere block is away from the head rod；It is arranged on the head rod There is (the first back-moving spring, the two ends of the (the first back-moving spring are contradicted with the hemisphere block and the first shell body phase respectively.

The transmission mechanism also includes on the power transmission shaft in the first shell body, the power transmission shaft along between its axis direction Every provided with inclined plane disc and drive；The inclined plane disc has an inclined-plane, and the inclined-plane towards the hemisphere block and with the hemisphere block Fit；The rotation of the power transmission shaft can drive the inclined plane disc to rotate, and drive the hemisphere block to do straight line by inclined plane disc Move back and forth.

Preferably, the top of second cutter is provided with protruding block, and the bottom of the 3rd cutter is provided with and the projection The groove that block matches.

Preferably, the protruding block is strip, and its length direction is consistent with the length direction of the sawtooth；And it is described convex Bittiness top surface is cambered surface, and the height at the two ends of protruding block along its length is less than the height in the middle part of it；The groove is arc Shape groove.

Preferably, the protruding block has multiple, and length direction of multiple protruding blocks along the sawtooth is set；It is described recessed Groove number and the number of the protruding block match.

Preferably, the protruding block includes the first end and relative with first end second close to the head rod End；The first end is fixedly linked with second cutter, and second end is movably connected with second cutter.

It is provided with bolster in the protruding block, the bolster includes movable part, the movable part is towards described second End.

Preferably, the bolster also includes fixture, and the fixture is slided with the movable part to be connected；The fixation Part and movable part are strip, and its length direction is consistent with the length direction of the protruding block；The fixture is fixed on Buffer spring is provided with second cutter, the fixture and the movable part.

Preferably, the fixture has the inner chamber of the straight-tube shape of one end open, and one end of the buffer spring is connected to The inner chamber；The end cap of ring-type is removably connected with the opening of the fixture, the internal diameter of the end cap is less than the inner chamber Internal diameter and form limiting section；The outside of the movable part is provided with the limited block matched with the limiting section.

The vegetable harvester cutting knife harvesting structure that the utility model is provided, in use, the first cutter is consolidated in knife combination Fixed to set, the activity of the second cutter sets and can done on the cutter of jigsaw fit second on horizontal reciprocating motion, the first cutter Sawtooth can play a part of cutting, by vegetables from root cut off.

3rd cutter is flexibly connected with frame, can in the vertical direction move reciprocatingly, pass through the reciprocal of the 3rd cutter Move the generation effect of beaing, the clod on vegetables beaten, by using cooperatively for three groups of cutters, can not only by vegetables from Gathered in field, additionally it is possible to destroy clod, play preferably harvesting effect.

Brief description of the drawings

Fig. 1 is the sectional view for the vegetable harvester cutting knife harvesting structure that the utility model embodiment is provided.

Fig. 2 is that the structure of the first cutter in the vegetable harvester cutting knife harvesting structure that the utility model embodiment is provided is shown It is intended to.

Fig. 3 is that the structure of the second cutter in the vegetable harvester cutting knife harvesting structure that the utility model embodiment is provided is shown It is intended to.

Fig. 4 is that the structure of the 3rd cutter in the vegetable harvester cutting knife harvesting structure that the utility model embodiment is provided is shown It is intended to.

Fig. 5 is the structure for vegetable harvester first fixed plate in cutting knife harvesting structure that the utility model embodiment is provided Schematic diagram.

Fig. 6 is the structure for vegetable harvester second fixed plate in cutting knife harvesting structure that the utility model embodiment is provided Schematic diagram.

Fig. 7 is the vegetable harvester bittiness internal structure of cutting knife harvesting structure convexity that the utility model embodiment is provided Schematic diagram.

Fig. 8 is that the vegetable harvester that the utility model embodiment is provided is bittiness operationally with cutting knife harvesting structure convexity Internal structure schematic diagram.

Fig. 9 is the internal structure for vegetable harvester bolster in cutting knife harvesting structure that the utility model embodiment is provided Schematic diagram.

Figure 10 is that the structure of bolster in the vegetable harvester cutting knife harvesting structure that the utility model embodiment is provided is shown It is intended to.

Reference collects：The cutters of 1- first；2- pilot pins；The fixed plates of 3- first；The fixed plates of 4- second；The knives of 5- second Tool；6- first through hole；7- head rods；The connecting rods of 8- second；The through holes of 9- second；10- protruding blocks；11- third through-holes；12- Hemisphere block；13- (the first back-moving springs；14- fourth holes；15- locating pieces；The cutters of 16- the 3rd；17- fifth holes；18- grooves； The connecting rods of 19- the 3rd；20- sliding grooves；21- second back-moving springs；The connecting rods of 22- the 4th；The through holes of 23- the 6th；24- inclined plane discs； 25- power transmission shafts；26- drives；The through holes of 27- the 7th；The housings of 28- first；29- fixing grooves；The housings of 30- second；31- mounting blocks； 32- mounting holes；33- sawtooth；41- bolsters；42- fixtures；43- movable parts；44- buffer springs；45- end caps；46- inner chambers； 47- limiting sections；48- limited blocks.

Embodiment

In order that those skilled in the art more fully understands the technical solution of the utility model, it is below in conjunction with the accompanying drawings and real Applying mode, the utility model is described in further detail.

Embodiment, refers to Fig. 1.

A kind of vegetable harvester cutting knife harvesting structure is present embodiments provided, applied on harvester, for gathering in vegetable Dish.

Vegetable harvester includes frame, knife combination and transmission mechanism with cutting knife harvesting structure；Frame includes being oppositely arranged The first housing 28 and the second housing 30, the two ends of knife combination are connected to the first housing 28 and the second housing 30, cutter Combination drives work by transmission mechanism.

Knife combination includes the first cutter 1, the second cutter 5 and the 3rd cutter 16 being stacked, the first cutter 1 and second The adjacent side of cutter 5 is provided with sawtooth 33.

First cutter 1 is fixedly connected with the first housing 28 and the second housing 30, the second cutter 5 and the first housing 28 and second shell Body 30 is flexibly connected, and it is past by the second cutter of driving effect 5 of transmission mechanism can to do straight line along the length direction of sawtooth 33 Multiple motion.

3rd cutter 16 is flexibly connected with the first housing 28 and the second housing 30, and the driving effect for passing through transmission mechanism Three cutters 16 can do straight reciprocating motion along perpendicular to the direction of the second cutter 5.

Frame is used for installing and supporting knife combination, and knife combination is used for Cut vegetables, and transmission mechanism is used for and harvester Drive mechanism be connected and drive knife combination to move.

The first cutter 1 is fixedly installed in knife combination, and the activity of the second cutter 5 sets and can do horizontal reciprocating motion, Sawtooth 33 on first cutter 1 coordinates the sawtooth 33 on the second cutter 5 to play a part of cutting, and vegetables are cut from root It is disconnected.

3rd cutter 16 is flexibly connected with frame, can in the vertical direction move reciprocatingly, pass through the 3rd cutter 16 The generation effect of beaing is moved back and forth, the clod on vegetables is beaten, can not only be by vegetable by using cooperatively for three groups of cutters Dish reaps a field, additionally it is possible to destroy clod, plays preferably harvesting effect.

Multiple first through hole 6 are interval with along the length direction of sawtooth 33 on second cutter 5, first through hole 6 is bar hole, And the length direction of first through hole 6 is consistent with the length direction of sawtooth 33.

Multiple fifth holes 17 are interval with along the length direction of sawtooth 33 on 3rd cutter 16, fifth hole 17 is bar shaped Hole, and the length direction of the length direction and sawtooth 33 of fifth hole 17 is perpendicular.

First through hole 6 has coincidence part with fifth hole 17, and knife combination includes running through fifth hole 17 and first through hole 6 Pilot pin 2, the bottom of pilot pin 2 is connected to the first cutter 1, and the top of pilot pin 2 is extended to outside the 3rd cutter 16.

The diameter of pilot pin 2 is consistent with the width of fifth hole 17.

Pilot pin 2 passes through the first through hole 6 of bar shaped, and the second cutter 5 is limited in certain scope of activities.Second cutter 5 move along the first through hole 6 of bar shaped, realize straight reciprocating motion.

The length direction of fifth hole 17 and the length direction of first through hole 6 are perpendicular, make the 3rd cutter 16 in level side It can not take exercises upwards, can only in the vertical direction motion.

Transmission mechanism includes the connecting rod 8 of head rod 7 and second, and the connecting rod 8 of head rod 7 and second is connected respectively In the relative two ends of the second cutter 5；Head rod 7 is worn to the first housing 28 from the third through-hole 11 on the first housing 28 Inside, the second connecting rod 8 is worn to the second housing 30 from the fourth hole 14 on the second housing 30, head rod 7 It can be slided in third through-hole 11, the second connecting rod 8 can be slided in fourth hole 14.

By the setting of two connecting rods, the second cutter 5 is set to be connected with frame, head rod 7 passes through the first housing 28 And can be slided in third through-hole 11, the second connecting rod 8 is through the second housing 30 and can be slided in fourth hole 14.Make Second cutter 5 can do straight reciprocating motion on the length direction of sawtooth 33.

The one end of head rod 7 away from the second cutter 5 has hemisphere block 12, and the diameter of the hemisphere block 12 is more than first and connected The diameter of extension bar 7, the sphere of hemisphere block 12 is away from head rod 7；(the first back-moving spring 13 is arranged with head rod 7, The two ends of (the first back-moving spring 13 are inconsistent with the housing 28 of hemisphere block 12 and first respectively.

Transmission mechanism is also included on the power transmission shaft 25 in the first housing 28, the power transmission shaft 25 along its axis direction interval Provided with inclined plane disc 24 and drive 26；Inclined plane disc 24 has inclined-plane, and the inclined-plane is affixed towards hemisphere block 12 and with hemisphere block 12 Close；The rotation of power transmission shaft 25 can drive inclined plane disc 24 to rotate, and drive hemisphere block 12 to do straight reciprocating motion by inclined plane disc 24.

As shown in figure 1, power transmission shaft 25 is rotatably arranged in the first housing 28, drive 26 is arranged on power transmission shaft 25. Vegetable harvester when in use, is connected on harvester with cutting knife harvesting structure, is driven by the drive mechanism of harvester.Specifically For, drive mechanism connection drive 26 drives drive 26 to rotate, and then drive power transmission shaft 25 to rotate.

Inclined plane disc 24 is has bevelled disk-like structure, and inclined plane disc 24 is arranged on power transmission shaft 25, passes through power transmission shaft 25 Rotation can drive inclined plane disc 24 to rotate.Ramp structure its surface when rotating produces undulating state, inclined plane disc 24 and hemisphere block 12 are fitted, and head rod 7 can be driven to move reciprocatingly.Inclined-plane can also be cambered surface, can play and preferably drive half The effect that ball block 12 is moved.

(the first back-moving spring 13 is arranged on head rod 7, and restoring force is played to hemisphere block 12, can have been completed Whole straight reciprocating motion.

End face of the hemisphere block 12 away from head rod 7 is spherical structure, the structure of sphere can preferably with inclined-plane Disk 24 is engaged, and head rod 7 is more smoothly run.

The top of second cutter 5 is provided with protruding block 10, the bottom of the 3rd cutter 16 be provided with protruding block 10 match it is recessed Groove 18.

Protruding block 10 is arranged on the second cutter 5, and motion is driven by the reciprocating motion of the second cutter 5.In the 3rd knife Have 16 bottoms there is provided groove 18, can drive the 3rd cutter 16 to move up and down, realize the 3rd knife by the motion of protruding block 10 Tool 16 beats the purpose of vegetables.

Protruding block 10 is strip, and its length direction is consistent with the length direction of sawtooth 33；And the top surface of protruding block 10 is Cambered surface, the height at the two ends of protruding block 10 along its length is less than the height in the middle part of it；Groove 18 is deep-slotted chip breaker.

The protruding block 10 of strip makes its motion amplitude larger.The setting of the protruding block 10 and groove 18 of arc, makes the two Between can preferably act power, fast and stable by the jack-up of the 3rd cutter 16.

Protruding block 10 has multiple, and length direction of multiple protruding blocks 10 along sawtooth 33 is set；The number of groove 18 and protruding block 10 number matches.

The setting of multiple protruding blocks 10 and groove 18 so that the 3rd cutter 16 can be more smoothly by the jack-up of the 3rd cutter 16 Come.

Protruding block 10 includes the first end and second end relative with first end close to head rod 7；First end with Second cutter 5 is fixedly linked, and the second end is movably connected with the second cutter 5.

It is provided with bolster 41 in protruding block 10, bolster 41 includes movable part 43, movable part 43 is towards the second end.

The relation that first end is fixedly connected with the second cutter 5, make protruding block 10 will not because of the 3rd cutter 16 impact quilt Drive.Second end enables the second end to slide certain distance with respect to the second cutter 5 with the relation that the second cutter 5 is flexibly connected, and rises To the effect of buffering, the impact between the cutter 16 of protruding block 10 and the 3rd is set more to relax, noise is lower when running equipment, 3rd cutter 16 is more smoothed out when rising, and the clod on vegetables can be preferably tapped when falling.Each part can be protected simultaneously, Make its life-span longer.The setting of bolster 41 improves cushion effect.

Bolster 41 also includes fixture 42, and fixture 42 is slided with movable part 43 to be connected；Fixture 42 and movable part 43 It is strip, and its length direction is consistent with the length direction of protruding block 10；Fixture 42 is fixed on the second cutter 5, fixed Buffer spring 44 is provided with part 42 and movable part 43.

As illustrated, fixture 42 and movable part 43 are connected by buffer spring 44, buffer spring 44 has to movable part 43 There is outside thrust.Inwardly compressed when movable part 43 is by thrust, buffer spring 44 plays cushioning effect.When movable part 43 by After the thrust arrived disappears, by the homing of thrust movable part 43 of buffer spring 44.

The end face that movable part 43 is adjacent to the second end is arc, preferably can be used in combination with protruding block 10.When second During 5 return of cutter, top surface of the 3rd cutter 16 along protruding block 10 is slided, and the structure of protruding block 10 of arc enables the 3rd cutter 16 Enough smoothly to slide, gap is not present in the top surface of protruding block 10, and protruding block 10 can be made successfully to fall into groove 18.

Fixture 42 has the inner chamber 46 of the straight-tube shape of one end open, and one end of buffer spring 44 is connected to inner chamber 46；Gu The end cap 45 of ring-type is removably connected with the opening for determining part 42, the internal diameter of end cap 45 is less than the internal diameter of inner chamber 46 and forms spacing Portion 47；The outside of movable part 43 is provided with the limited block 48 matched with limiting section 47.

The setting of limiting section 47 and limited block 48 makes movable part 43 not come off out of fixture 42, end cap 45 and fixture 42 relations being detachably connected, enable movable part 43 successfully to install into inner chamber 46, installation end again after installation activity part 43 Lid 45.

In another embodiment, vegetable harvester includes the first cutter 1 with cutting knife harvesting structure；The top of first cutter 1 Portion is evenly arranged with pilot pin 2, and the left end of the first cutter 1 is fixedly connected with the first fixed plate 3, the right-hand member of the first cutter 1 and Two fixed plates 4 are fixedly connected, and the top of the first cutter 1, which is provided with the second cutter 5, the second cutter 5, to be offered and the phase of pilot pin 2 Corresponding first through hole 6, the left end of the second cutter 5 is provided with head rod 7, and the right-hand member of the second cutter 5 is provided with the second company The second penetrating up and down through hole 9 is offered in extension bar 8, the second connecting rod 8, the top of the second cutter 5 is evenly arranged with protruding block 10, third through-hole 11 is offered in the first fixed plate 3, the left end of head rod 7 is consolidated through third through-hole 11 with hemisphere block 12 It is arranged with fixed connection, head rod 7 in (the first back-moving spring 13, the second fixed plate 4 and offers fourth hole 10, second connects The right-hand member of extension bar 8 is arranged on the right side of the second fixed plate 4 through fourth hole 10, and the inner chamber 46 of the second through hole 9 is provided with locating piece 15, locating piece 15 is fixedly connected with the right side wall of the second fixed plate 4, and the top of the second cutter 5 is provided with the 3rd cutter 16, the 3rd The fifth hole 17 corresponding with pilot pin 2 is offered on cutter 16, the bottom of the 3rd cutter 16 offers relative with protruding block 10 The groove 18 answered, the first half in the left side of the 3rd cutter 16 and the first half on right side are provided with the 3rd connecting rod 19, and first fixes Offered in the sliding groove 20 corresponding with the 3rd connecting rod 19, sliding groove 20 in the fixed plate 4 of plate 3 and second and be provided with second Back-moving spring 21, the outer end of the 3rd connecting rod 19 is arranged in sliding groove 20, the latter half of and right side in the left side of the 3rd cutter 16 Latter half of be provided with the 4th connecting rod 22, the first fixed plate 3 and the second fixed plate 4 offers and the phase of the 4th connecting rod 22 Corresponding 6th through hole 23, the outer end of the 4th connecting rod 22 is arranged in the inner chamber 46 of the 6th through hole 23, the left side of hemisphere block 12 Inclined plane disc 24 is provided with, the center of inclined plane disc 24, which is provided with power transmission shaft 25, power transmission shaft 25, is arranged with drive 26, first consolidates Seventh through hole 27 corresponding with power transmission shaft 25 is offered in fixed board 3, the right-hand member of power transmission shaft 25 is arranged on the inner chamber of the 7th through hole 27 In 46, the left side of the first fixed plate 3, which is provided with the first housing 28, the left wall of 28 inner chamber of the first housing 46, is provided with fixing groove 29, The left end of power transmission shaft 25 is arranged in the inner chamber 46 of fixing groove 29, and the right side of the second fixed plate 4 is provided with the second housing 30, and first consolidates The rear end of the fixed plate 4 of fixed board 3 and second, which is provided with mounting blocks 31, and mounting blocks 31, offers mounting hole 32, drive 26 It is connected with the power set of vegetable harvester, the front end of the first cutter 1, the second cutter 5 and the 3rd cutter 16 is provided with sawtooth 33, protruding block 10 is arranged on the front side of first through hole 6, and drive 26 is arranged on the right side of inclined plane disc 24.

Operation principle：In use, the power set of vegetable harvester drive drive 26 to rotate, drive 26 passes through transmission Axle 25 drives inclined plane disc 24 to rotate, and inclined plane disc 24 drives hemisphere block 12 to move back and forth, and hemisphere block 12 passes through head rod 7 Drive the second cutter 5 to move back and forth, produce relative motion with the first cutter 1, effectively vegetables can be gathered in, passed through 7th through hole 27 and fixing groove 29 effectively can carry out spacing to power transmission shaft 25, can be the second cutter by (the first back-moving spring 13 5 provide reset forces, and third through-hole 11 and fourth hole 10 effectively can carry out spacing to the second cutter 5, pass through the He of locating piece 15 The cooperation of second through hole 9 effectively can carry out spacing to the second connecting rod 8, pass through pilot pin 2, first through hole 6 and fifth hole 17 mutual cooperation effectively can carry out spacing to the first cutter 1, the second cutter 5 and the 3rd cutter 16, pass through the He of protruding block 10 The mutual cooperation of groove 18 so that the second cutter 5 can effectively drive the 3rd cutter 16 to be pumped, to harvesting Vegetables are applied with upward power, it is to avoid the defect of legacy equipment upper applying power in only the horizontal direction, are favorably improved harvesting effect Rate, because the high-frequency reciprocating of the 3rd cutter 16 is moved, helps to shake off the clod adhered on vegetables, by the 3rd connecting rod 19 with The mutual cooperation of sliding groove 20, the 4th connecting rod 22 and the 6th through hole 23 effectively the 3rd cutter 16 can be carried out it is spacing, second Back-moving spring 21 is that the 3rd cutter 16 provides reset force, the first fixed plate 3 and the first housing 28, the second fixed plate 4 and second The mutual cooperation of housing 30 can be effectively to equipment mechanical structure protect, pass through the cooperation of mounting blocks 31 and mounting hole 32 Equipment can be installed.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (10)

1. a kind of vegetable harvester cutting knife harvesting structure, it is characterised in that including frame, knife combination and transmission mechanism；Institute The first housing and the second housing that frame includes being oppositely arranged are stated, the two ends of the knife combination are connected to the first shell Body and the second housing, the knife combination pass through the transmission mechanism driving work；

The knife combination includes the first cutter, the second cutter and the 3rd cutter being stacked, first cutter and second The adjacent side of cutter is provided with sawtooth；

First cutter is fixedly connected with first housing and the second housing, second cutter and first housing and the Two housings are flexibly connected, and can be along the length side of the sawtooth by the second cutter described in the driving effect of the transmission mechanism To doing straight reciprocating motion；

3rd cutter is flexibly connected with first housing and the second housing, and passes through the driving effect of the transmission mechanism 3rd cutter can do straight reciprocating motion along perpendicular to the direction of second cutter.

2. vegetable harvester according to claim 1 cutting knife harvesting structure, it is characterised in that edge on second cutter The length direction of sawtooth is interval with multiple first through hole, and the first through hole is bar hole, and the length direction of first through hole It is consistent with the length direction of the sawtooth；

Multiple fifth holes are interval with along the length direction of sawtooth on 3rd cutter, the fifth hole is bar hole, And the length direction of the length direction of fifth hole and the sawtooth is perpendicular；

The first through hole has coincidence part with the fifth hole, and the knife combination includes running through the fifth hole and institute The pilot pin of first through hole is stated, the bottom of the pilot pin is connected to first cutter, and the top of the pilot pin is extended to Outside 3rd cutter；

The diameter of the pilot pin is consistent with the width of the fifth hole.

3. vegetable harvester according to claim 2 cutting knife harvesting structure, it is characterised in that the transmission mechanism includes It is relative that head rod and the second connecting rod, the head rod and the second connecting rod are connected to second cutter Two ends；The head rod is worn to first enclosure interior from the third through-hole on first housing, and described the Two connecting rods are worn to second enclosure interior from the fourth hole on second housing, and the head rod can Slided in the third through-hole, second connecting rod can be slided in the fourth hole.

4. vegetable harvester according to claim 3 cutting knife harvesting structure, it is characterised in that the head rod is remote There is hemisphere block from one end of second cutter, the diameter of the hemisphere block is more than the diameter of the head rod, hemisphere block Sphere away from the head rod；(the first back-moving spring, the (the first back-moving spring are arranged with the head rod Two ends contradicted respectively with the hemisphere block and the first shell body phase；

The transmission mechanism also includes setting along its axis direction interval on the power transmission shaft in the first shell body, the power transmission shaft There are inclined plane disc and drive；The inclined plane disc has inclined-plane, and the inclined-plane is affixed towards the hemisphere block and with the hemisphere block Close；The rotation of the power transmission shaft can drive the inclined plane disc to rotate, and drive the hemisphere block to do linear reciprocation by inclined plane disc Motion.

5. vegetable harvester according to claim 3 cutting knife harvesting structure, it is characterised in that the top of second cutter Portion is provided with protruding block, and the bottom of the 3rd cutter is provided with the groove matched with the protruding block.

6. vegetable harvester according to claim 5 cutting knife harvesting structure, it is characterised in that the protruding block is strip Shape, its length direction is consistent with the length direction of the sawtooth；And the top surface of the protruding block is cambered surface, protruding block is along its length The height at the two ends in direction is less than the height in the middle part of it；The groove is deep-slotted chip breaker.

7. vegetable harvester according to claim 6 cutting knife harvesting structure, it is characterised in that the protruding block has many Individual, length direction of multiple protruding blocks along the sawtooth is set；The groove number and the number phase of the protruding block Match somebody with somebody.

8. vegetable harvester according to claim 6 cutting knife harvesting structure, it is characterised in that the protruding block includes leaning on The first end of the nearly head rod and second end relative with first end；The first end is fixed with second cutter It is connected, second end is movably connected with second cutter；

It is provided with bolster in the protruding block, the bolster includes movable part, the movable part is towards second end.

9. vegetable harvester according to claim 8 cutting knife harvesting structure, it is characterised in that the bolster also includes Fixture, the fixture is slided with the movable part to be connected；The fixture and movable part are strip, and its length side To consistent with the length direction of the protruding block；The fixture is fixed on second cutter, the fixture and the work Buffer spring is provided with moving part.

10. vegetable harvester according to claim 9 cutting knife harvesting structure, it is characterised in that the fixture has The inner chamber of the straight-tube shape of one end open, one end of the buffer spring is connected to the inner chamber；Can at the opening of the fixture Dismounting is connected with the end cap of ring-type, and the internal diameter of the end cap is less than the internal diameter of the inner chamber and forms limiting section；The movable part Outside be provided with the limited block that matches with the limiting section.