CN2676591Y

CN2676591Y - Harvester cutter

Info

Publication number: CN2676591Y
Application number: CN 200320108652
Authority: CN
Inventors: 杨兆煌
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-05
Filing date: 2003-12-05
Publication date: 2005-02-09
Anticipated expiration: 2013-12-05

Abstract

The utility model discloses a harvester cutter, comprising blades, a fixing blade base, a movable blade base and a pull base which is arranged on one side of the movable blade base. The blade tooth edge of the blade is a triangle, and the number of teeth is two or more than two. Simultaneously, the blades with different teeth edge number have different combinations at different position according to the size of the working stress of every position. The above structure relatively reduces the number of clearance formed when every blades are installed on the cutter, the strength of the cutter is raised as a whole, and thereby, the cutter damage caused by the break of the blade base on the job is avoided effectively.

Description

Harvester cutter

Technical field:

The utility model relates to a kind of agricultural with the harvesting utensil, particularly relates to a kind of harvester cutter.

Background technology:

At present agricultural with the structure of the cutter of grain header generally as shown in Figure 1 and Figure 2, it includes the movable tool rest of some blade 1, one 3, fixedly a tool rest 3 ' and a pulling seat 4.Blade is monodentate, and is triangular in shape, and leg-of-mutton two hypotenuses are zigzag cutter tooth sword 2, and leg-of-mutton base is fixed on the strip tool rest; Tool rest divides two rows, and following row is fixing tool rest 3 ', and last row is movable tool rest 3, and the one side is provided with a pulling seat 4, links to each other with the transmission mechanism of grain header.In when work, the power of grain header promotes pulling seat 4 by transmission mechanism and moves back and forth, thereby makes movable tool rest 3 produce move left and right, forms cutting action with fixing tool rest 3 '.Along with advancing of grain header, the rice bar is imported in the cutting edge of movable blades and fixed blade formation, is cut off then.

The weak point that exists on the above-mentioned existing harvester cutter structure is: be fixed on and generally can leave one the slit between each blade on the tool rest, if its pace during harvester operation in case with the cutting speed mismate of cutter, will cause the rice bar clamping stagnation that is not cut off on a small quantity in the cutter of grain header, because the rice bar of bunchy has certain toughness, thereby can cause the fracture of tool rest, particularly near pulling seat easier fracture of movable tool rest partly.

Summary of the invention:

In order to overcome the deficiencies in the prior art, the utility model provide a kind of rational in infrastructure, intensity is high, the tool rest harvester cutter of easy fracture not.

The technical scheme in the invention for solving the technical problem is: a kind of harvester cutter, it includes blade, fixedly tool rest, movable tool rest and be arranged on the pulling seat of this activity tool rest one side, the cutter tooth sword of described blade is triangular in shape, the number of teeth is more than two or two, thereby reduced formed slit number when each blade is installed on the cutter relatively, improved cutter intensity.

Harvester cutter described in the utility model can also be as required formed by the different blade unit of bidentate sword, three lands or multiple tooth sword, at the stressed bigger position of work, as the pulling seat place near movable tool rest, the blade of more land number can be set.

The beneficial effects of the utility model are, reduced formed slit quantity when each blade is installed on the described cutter relatively, simultaneously can also be according to the stressed size of each position work, take the blade of different land numbers on different positions, to carry out different combinations, thereby improved cutter intensity on the whole, the tool damage that has caused owing to the tool rest fracture when having avoided work effectively.

Description of drawings:

Fig. 1 is the schematic perspective view of existing harvester cutter blade.

Fig. 2 is the front view of existing harvester cutter.

Fig. 3 is the schematic perspective view of first kind of embodiment blade of the utility model.

Fig. 4 is the front view of first kind of embodiment of the utility model.

Fig. 5 is the profile of Fig. 4 A-A.

Fig. 6 is the schematic perspective view of second kind of embodiment blade of the utility model.

Fig. 7 is the schematic diagram of second kind of embodiment of the utility model.

Embodiment:

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:

See also Fig. 3 and Fig. 4 earlier, the schematic diagram of first kind of embodiment of the utility model.The blade 10 of this harvester cutter has two triangle all-in-one-piece cutter tooth arranged side by side swords 11, be " M " shape, hypotenuse is a land 11, and the base is Fixed Division 12, which is provided with rivet hole 13, by rivet 14 with these blade 10 rivet clasps on the tool rest of long strip-board shape.Tool rest divides two rows, and last row is movable tool rest 20, and following row is fixing tool rest 20A, some blades 10 all closely arranged in a straight line on two tool rests, and fixedly tool rest 20A goes up being of installing row's blade A down, and installation is upward to arrange blade B on the movable tool rest 20.4 rivets 14 are all passed through in the Fixed Division 12 of each blade, and rivet clasp is on this two tool rest.

See also Fig. 4 and shown in Figure 5 again, on movable tool rest 20, be provided with an interlocking plate 40 at a certain distance, its top is the compressed part 41 of curved arc shape flexure strip on, this compressed part 41 extend horizontally away a flat board 42, one trepanning 43 that connects is arranged on it, one clipping part 50 is close proximity to a side of this upper cutter head 20, the perforation 51 of traversing is arranged on this clipping part 50, one hook-shaped elasticity tightening member 60 be pressed on interlocking plate 40 above, one cushion block 70 is between the centre of upper cutter head 20 and tightening member 60, first end 61 of this tightening member 60 compresses the compressed part 41 of the protrusion on the interlocking plate 40 downwards, second end 62 is resisted against the top of cushion block 70, one locking element 80 (as bolt) passes down the lockhole 21 on the tool rest 20A successively, cushion block 70, perforation 51 on the clipping part 50, after the trepanning 43 and tightening member 60 on the interlocking plate 40, with a nut 81 lockings, stagger between the row of the going up blade B after the installation and following each cutter tooth of row's blade A, to form the cutting edge of cutting rice bar.In addition, upper cutter head 20 1 side rivet clasps have a pulling seat 22, and it links to each other with the transmission mechanism of grain header, thereby are driven reciprocal cutting movement about work at work.

Compare with existing known harvester cutter, the knife number that present embodiment uses reduces relatively, the also corresponding minimizing of slit number between the blade that forms when therefore blade is installed, and that tool rest is in the position in slit between blade is the weakest when working just, the place that is easy to rupture, therefore, the utility model has increased the bulk strength of cutter relatively, has reduced the tool damage that the tool rest fracture causes.

Fig. 6 has shown the structure of second kind of embodiment blade 10A, and it has three triangle all-in-one-piece cutter tooth arranged side by side swords.Fig. 7 has represented a kind of combination embodiment of blade 10A shown in Figure 6 and first kind of embodiment blade 10.In this embodiment, at the position of the movable tool rest 20 of stressed bigger close the pulling seat 22 of work, the blade 10A of three lands is set, the blade slit that makes this place has still less also just more effectively avoided tool rest to rupture at the position of stressed maximum.Like this according to the stressed size of each position of cutter work, take the blade of different land numbers on diverse location, to carry out the method for various combination, cutter structure is more become rationally, also just more effectively improved the intensity of solid tool.

Claims

1, a kind of harvester cutter, it includes blade (10), fixedly tool rest (20A), movable tool rest (20) and be arranged on the pulling seat (22) of these activity tool rest (20) one sides, it is characterized in that: the cutter tooth sword (11) of described blade (10) is triangular in shape, and the number of teeth is more than two or two.

2, harvester cutter according to claim 1 is characterized in that: the Fixed Division (12) of described blade (10) is provided with rivet hole (13), by rivet (14) with its rivet clasp on described two tool rests (20,20A).

3, harvester cutter according to claim 1 is characterized in that: at the position of going up pulling seat (22) near movable tool rest (20), the blade (10A) of multitool land is set.