CN201210812Y

CN201210812Y - Cutting device for cane cutter

Info

Publication number: CN201210812Y
Application number: CNU2008200883300U
Authority: CN
Inventors: 卢志乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-03
Filing date: 2008-06-03
Publication date: 2009-03-25
Anticipated expiration: 2018-06-03

Abstract

The utility model relates to a cutting mechanism for a sugarcane harvester, which comprises two cutter heads which rotate oppositely, wherein one to three cutting blades are fixed on each cutter head, and liner plates are arranged between the cutter heads and the cutting blades. The cutting mechanism is characterized in that each cutting blade is matched with an approximately fan-shaped supporting plate which is fixed on each cutter head, and the front side of the supporting plate is pressed against the back side of the cutting blade; the outer part of the supporting plate and the outer part of the cutting blade are both extended out of the cutter heads, and the thickness of the outer part of the supporting plate is less than or equal to that of the outer part of the cutting blade; besides, the cutting blades on the two cutter heads and the supporting plates matched with the cutting blades are distributed in a staggered form. With the supporting plates matched with the cutting blades, after being cut off, sugarcanes can fall over the supporting plates which convey the sugarcanes to the subsequent processes in time and successfully, thereby avoiding the phenomenon that the sugarcanes are cut one more time or a plurality of times by the cutting blades rotating to the sugarcanes subsequently because of the improper falling positions of the sugarcanes, greatly reducing the head breaking rate and powerfully guaranteeing the sugar yield of the sugarcane in post processing.

Description

A kind of cane harvester cutting mechanism

Technical field

The utility model relates to cane harvester, specifically refers to a kind of cane harvester cutting mechanism.

Background technology

In today that mechanical automation is popularized day by day, the sugarcane grower has broken away from the work of manual harvesting sugarcane substantially, and service efficiency height, the cane harvester that labour intensity is little carry out the harvesting of sugarcane.The harvesting mode of cane harvester has the cutting type harvesting and puts in order the harvesting of stalk formula, present main flow harvesting mode is whole stalk formula harvesting, promptly earlier sugarcane is pushed over, make its certain angle that tilts, cutting mechanism on the cane harvester breaks apart by chopping sugarcane then, do not lose for the sugar content that guarantees harvesting back sugarcane, require to break apart by chopping overhead following 2～3 centimetres of crops for rotation, the breach of damage phenomenon can not be arranged; After sugarcane was cut off, the sugarcane stalk that will be cut off lodging by pickup system picks up to be sent into the stripping leaf mechanism that truncates and removes leaf and the taper of sugarcane, is transported to the sugarcane gathering system by conveying mechanism at last.In the composition of cane harvester, the cutting mechanism that sugarcane is cut off is topmost parts, and it is related to head breaking rate and the perennial root head breaking rate of sugarcane, and the head breaking rate height of sugarcane can cause sugar to descend, and influences sugared rate, uses sugared rate and reduces; And perennial root head breaking rate height can influence the germinating growth of stubble cane.Therefore will guarantee the interests in sugarcane grower and sugar refinery simultaneously, the cutting in the harvesting sugarcane process is crucial.Cane harvester generally adopts the disc cutter with cutting mechanism at present, it as the patent No. 00246959.1 utility model patent " small-sized self-walking cane harvester ", it uses the zigzag mechanical shoulder cut-off knife, this cutter stable drive, nothing are impacted, but efficient is low, and the cutting performance that buries is bad.In order to improve the cutting efficiency of zigzag mechanical shoulder cut-off knife, the patent No. is the cutting mechanism that 02204624.0 utility model patent " chopper that a kind of cane harvester is used " provides a kind of improved cane harvester to use, this cutting mechanism comprises blade, the pad tool rest left and right cutterhead identical with structure, described pad tool rest is fixed on the cutterhead lower surface by rivet, and described blade is by the uniform described pad tool rest below that is fixed on of bolt group; Pitch wheel drives left and right cutterhead by the vertical shaft that is installed in left and right cutterhead top and rotates.Along with advancing of grain header, gear drives cutterhead by vertical shaft and rotates, thereby drive blade rotation the sugarcane in the ground is broken apart by chopping, and the sugarcane of being broken apart by chopping need be transported to immediately in the order mechanism of back and handle.Though this sugarcane increases to some extent with the cutting performance that buries of cutting mechanism blade, cutting efficiency increases; But because the sugarcane that does not have special mechanism will be broken apart by chopping lodging is sent in the subsequent handling timely, sugarcane can not all fall according to desirable direction and position, by in time, successfully in the postorder operation of carrying, there are some can fall or fall at an angle on cutterhead, blade in the place ahead of grain header, entering between the subsequent handling, the blade that rotation is come will soon be filled a cutter on one's body again at the sugarcane stalk, make sugarcane after the cutting experience two cuttves and even multitool, head breaking rate increases greatly, has reduced sugared rate.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, a kind of cane harvester cutting mechanism is provided, it can be by in time, successfully carry by the sugarcane stalk after breaking apart by chopping to subsequent handling, significantly reduces head breaking rate to reach, guarantees to go out in the processing behind the sugarcane purpose of sugared rate.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this cane harvester cutting mechanism, comprise two cutterheads that rotate in opposite directions, be fixed with one to three piece of blade on each cutterhead, be provided with backing plate between cutterhead and the blade, it is characterized in that each described blade is also supporting has one roughly to be the fan-shaped fishplate bar of holding up, hold up fishplate bar to be fixed on the described cutterhead, its front side is tight against the rear side at blade; Hold up that the outside of the outside of fishplate bar and blade is all outer to lean out cutterhead, and hold up the thickness of fishplate bar outside to be less than or equal to the thickness of blade outer; And, the blade on two cutterheads and supporting hold up the interlaced distribution of fishplate bar.With the supporting setting of holding up fishplate bar of blade, when guaranteeing the smooth and easy rotation of blade, filled up the blank between two cutterheads, be bound to after sugarcane is broken apart by chopping lodge and holding up on the fishplate bar, by holding up fishplate bar in time, successfully the sugarcane stalk is sent in the subsequent handling, it is not right can not occur because of the position of sugarcane lodging, is rotated subsequently and the blade that comes partial application and even multiple tool phenomenon again, significantly reduced head breaking rate, strong guarantee process behind the sugarcane go out sugared rate; And blade and hold up fishplate bar mutually against setting, make and hold up fishplate bar also can bear a part of cutting thrust indirectly, reduce the wearing and tearing of blade, prolong the service life of blade.

Installation of this cutting mechanism for convenience and stability fixing and machine run when further guaranteeing work, can hold up fishplate bar to be designed to body component one by one on the described same cutterhead all, its middle part is the annular plate concentric with cutterhead, outside for justifying the fanning strip that the extension of the annular slab outside gets by oneself, described blade promptly matches with this fanning strip, and the front side of fanning strip is tight against the rear side of blade.

In the such scheme, in order further to increase the cutting thrust of holding up fishplate bar to bear, the reliability that guarantees work, can be designed as step between described blade and the fanning strip and cooperate.

The installation and removal of blade for convenience, described blade and backing plate can be fixed together by screw.

Carry out because the cutting of sugarcane is the head end at the blade blade, and cutting operation is to carry out below ground surface, so the wearing and tearing of blade are more serious, cutting edge oral area position especially.In order further to prolong the service life of blade, can continue to use the original blade of blade to cut, therefore can be provided with regulating tank corresponding to screw at the afterbody of described blade, described screw passes regulating tank blade is fixed on the backing plate, like this, after the cutting edge of bit end is worn, thereby can unscrew screw, regulating tank is outwards slided along screw blade is moved outside cutterhead, and then tighten screw blade is fixed on the backing plate.Can be convenient to use the inner original blade of blade like this and cut once more, prolong the service life of blade.

Since in the harvesting process of sugarcane, 2～3 centimeters operations under the surface, harvesting mechanism soil of cane harvester, and blade is very easy to be worn and damage, so, in order effectively to prolong the service life of blade, preferably, the outside of described blade can be isosceles trapezoid or rectangle.

The thickness of described blade can be 2～5 millimeters, is typically designed to 3 millimeters.This be because, if the thickness of blade is too big, can influence the sharpness of blade, cause sugarcane damage, increase the head breaking rate of sugarcane.

The width of described blade external end head preferably can be more than or equal to 50 millimeters, this be because the diameter of sugarcane generally in 50 millimeter or big slightly, the width of blade blade preferably can be more than or equal to the diameter of sugarcane, to improve cutting efficiency and to prevent that blade from because of the over-stressed bending that is caused, distortion or wearing and tearing, influencing the service life of blade.Better, the width of blade external end head can be designed as 50～90 millimeters.

In the such scheme, guarantee the smooth and easy rotation of blade, do not touched or be may wear in the time of just must making blade on two cutterheads staggered, be between the backing plate on blade and opposite certain space to be arranged, therefore the external end edge of backing plate and the external end edge of cutterhead are partially overlapped, simultaneously in order to guarantee the stability after entire mechanism is installed, the shape of described backing plate can with hold up fishplate bar and with its supporting blade the shape after fixing identical,

Compared with prior art, because the utility model has designed the fishplate bar of holding up that is fixed on the backing plate especially, filled up the blank between the blade that interlocks on two rotating cutter-heads, the lodging that guaranteed to be bound to after sugarcane is broken apart by chopping is being held up on the fishplate bar, by holding up fishplate bar in time, successfully the sugarcane stalk is sent in the subsequent handling; The sugarcane lodging of having avoided breaking apart by chopping is on two cutterheads between the staggered blades arranged, and the blade that can not in time be admitted to subsequent handling, is rotated is partial application and even multiple tool phenomenon again, has significantly reduced head breaking rate, strong guarantee process behind the sugarcane go out sugared rate; Design, the design and the blade of bit end minimum widith and the fixed form of holding up fishplate bar of while blade thickness, all strong minimizing the wearing and tearing of blade, prolonged service life of blade, further reduce the head breaking rate in the sugarcane harvesting process, guarantee behind the sugarcane the sugared rate that goes out in the processing.

Description of drawings

Fig. 1 is the setting plan of the utility model embodiment (actual user mode look up direction);

Fig. 2 is the three-dimensional installation diagram (single cutterhead) of middle cutting mechanism embodiment illustrated in fig. 1;

Fig. 3 is the three-dimensional exploded view (blade is placed on the installation site) of Fig. 2;

Fig. 4 is that the D of Fig. 2 is to zoomed-in view;

Fig. 5 is the A-A cutaway view of Fig. 2;

Fig. 6 is the B-B cutaway view of Fig. 2;

Fig. 7 is the local amplification view of the C-C of Fig. 1;

Fig. 8 is the three-dimensional installation diagram (two pieces of blades) of trapezoidal single cutterhead for blade head in the utility model;

Fig. 9 is the three-dimensional installation diagram (three pieces of blades) of the single cutterhead of rectangle for blade head in the utility model.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As 1 to shown in Figure 7, the cutting mechanism of this cane harvester comprises the identical left and right cutterhead 3 of structure, blade 1, holds up fishplate bar 2 and backing plate 4.

Wherein,

Described cutterhead 3 is driven by external force, for example can drive by the rotating shaft (not shown) that is connected with the motor shaft (not shown), pitch wheel group (not shown) is driven, described rotating shaft is fixed on the commentaries on classics hole 31 that is opened in the cutterhead center.

Described backing plate 4 is fixed on the below of cutterhead 3, and in the present embodiment, the middle part of backing plate 4 is the annular concentric with cutterhead 3, and the outside of backing plate 4 is outward extending fan-shaped by annular, and the external end edge of backing plate 4 overlaps with the external end edge of cutterhead 3; Width between the width of the outside of backing plate 4 and the blade of holding up the fanning strip 22 on the fishplate bar 2 and installing near this fanning strip as described below is suitable, as shown in Figure 3.

The described fishplate bar 2 of holding up is fixed on the cutterhead 3, be lined with described backing plate 4 between the two, the middle part of holding up fishplate bar 2 is the annular plate 21 concentric with cutterhead 3, more than or equal to the blade 1 outer width (installation method of blade 1 is as described below) that leans out cutterhead 3, the outside of holding up fishplate bar is for by annular plate 21 outward extending fanning strips 22 less than the radius of cutterhead 3 and both differences for the radius of described annular plate 21; The front side of fanning strip 22 is step-like, as shown in Figure 7.The described fishplate bar 2 of holding up also can adopt two or three (equating with piece number of blade) shapes to be roughly fan-shaped fanning strip, and it directly is fixed on backing plate 4 and the cutterhead 3.

The afterbody 11 of described blade 1 is a rectangle, and the shape of the afterbody 11 of the utility model blade 1 cooperates the requirement design of installing and using to get final product without limits, and the afterbody 11 of blade offers regulating tank 15; In the present embodiment, the head 12 of blade 1 is a rectangle; As shown in Figure 8, the shape of blade head 12 can also be an isosceles trapezoid; In the present embodiment, the thickness of blade 1 is 3 millimeters; The width of bit end 13 is 80 millimeters; The rear side of blade 1 for suitable step-like in the front side of holding up fishplate bar 2, as shown in Figure 7, the front side of fanning strip 22 cooperates with the rear side of blade formation step.Adopt two pieces of blades in the present embodiment; The utility model can also adopt three pieces of blades as shown in Figure 9.

Aforesaid blade 1, hold up all offer on fishplate bar 2, backing plate 4 and the cutterhead 3 and be used for be fixed together screw of screw 5, as shown in Figure 1, in the present embodiment, three pieces of screws 5 pass the screw of holding up on fishplate bar 2, backing plate 4 and the cutterhead 3 successively the three are fixed together; The screw that two pieces of screws 5 pass on regulating tank 15, backing plate 4 and the cutterhead 3 on the blade 1 successively is fixed together this three.Blade on the left and right cutterhead and the 22 interlaced distributions of supporting fanning strip thereof, be distance between the rear side 23 of fanning strip 22 and the rear side 23 ' that is less than or equal to the front side 14 of this blade 1 and another fanning strip near the distance between the front side 14 of the blade 1 of this fanning strip installed in front, this mainly is in order to prevent that the blade on the left and right cutterhead from damaging blade because of colliding mutually when rotating.

When carrying out the sugarcane harvesting, open machine, cutterhead rotates in opposite directions by the driving of rotating shaft, breaks apart by chopping at the root of subsurface 2～3 centimeters with sugarcane, because blade has only 3 millimeters thick, so the sharpness of blade is enough to sugarcane is once broken apart by chopping, can not produce brokenly head; The lodging of the sugarcane broken apart by chopping is rotated on holding up fishplate bar holds up fishplate bar in time, be transported in the down-stream smoothly.After the blade wearing and tearing passivation of blade, unclamp the screw of fixed blade, regulating tank 15 is outwards moved along screw 5, when moving to the appropriate location, tighten screw, the untapped blade of blade is moved, outward like this in the cutting process of back, can continue to use original blade on this blade, prolong the service life of blade.

This cane harvester is with cutting mechanism cutting efficiency height, head breaking rate is low, has guaranteed behind the sugarcane the sugared rate that goes out in the process.

Claims

1, a kind of cane harvester cutting mechanism, comprise two cutterheads that rotate in opposite directions, be fixed with one to three piece of blade on each cutterhead, be provided with backing plate between cutterhead and the blade, it is characterized in that each described blade is also supporting has one roughly to be the fan-shaped fishplate bar of holding up, hold up fishplate bar to be fixed on the described cutterhead, its front side is tight against the rear side at blade; Hold up that the head of the outside of fishplate bar and blade is all outer to lean out cutterhead, and hold up the thickness of fishplate bar outside to be less than or equal to the thickness of blade outer; And, the blade on two cutterheads and supporting hold up the interlaced distribution of fishplate bar.

2, cane harvester cutting mechanism according to claim 1, it is characterized in that: all on the described same cutterhead hold up fishplate bar to be body component one by one, its middle part is the annular plate concentric with cutterhead, outside for justifying the fanning strip that the extension of the annular slab outside gets by oneself, described blade promptly matches with this fanning strip.

3, cane harvester cutting mechanism according to claim 2 is characterized in that: cooperate for step between described blade and the fanning strip.

4, according to claim 1,2 or 3 described cane harvester cutting mechanisms, it is characterized in that: described blade and backing plate and cutterhead are fixed together by screw.

5, cane harvester cutting mechanism according to claim 4, it is characterized in that: described blade is provided with regulating tank, and screw passes regulating tank blade and backing plate and cutterhead is fixed together.

6, cane harvester cutting mechanism according to claim 4 is characterized in that: the head that described blade leans out cutterhead outward is isosceles trapezoid or rectangle.

7, cane harvester cutting mechanism according to claim 5 is characterized in that: the thickness of described blade is 2～5 millimeters.

8, cane harvester cutting mechanism according to claim 6, it is characterized in that: the width of described blade external end head is more than or equal to 50 millimeters.

9, cane harvester cutting mechanism according to claim 7 is characterized in that: the width of described blade external end head is 50～90 millimeters.

10, cane harvester cutting mechanism according to claim 2 is characterized in that: the shape of described backing plate with hold up fishplate bar and its supporting blade fixing after the identical and external end edge of backing plate of shape and the external end edge of cutterhead partially overlap.