CN201718229U

CN201718229U - Special cutter for field straw chopper

Info

Publication number: CN201718229U
Application number: CN2010201902397U
Authority: CN
Inventors: 李传良; 王永胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-04
Filing date: 2010-05-04
Publication date: 2011-01-26
Anticipated expiration: 2020-05-04

Abstract

The utility model discloses a special cutter for a field straw chopper. The cutter is mounted on a rotary cutter shaft of the field straw chopper and comprises a cutter shaft sleeve, a hilt is fixed on the peripheral surface of the cutter shaft sleeve, a cutting blade is fixed at the outer end of the cutter hilt, and a fan device is arranged on the hilt. When in advancing of the field straw chopper, the cutter can be inserted into a field ditch deeply, is driven to rotate at high speed by the rotary cutter shaft of the field straw chopper and generates higher wind power by aid of the fan device, thereby increasing negative pressure of the field straw chopper, generating stronger suction for lodging plants such as straws, vines and weeds, chopping plants thoroughly, increasing crushing quality and efficiency of the field straw chopper and being favorable for increasing agricultural cultivation efficiency.

Description

The straw cutting apparatus dedicated tool

Technical field

The utility model relates to a kind of straw cutting apparatus, relates in particular to a kind of dedicated tool that uses when field-returning machine crushing straw or seedling are climing that is applicable to.

Background technology

Modern agriculture adopts the automation tillage method of straw-returning more, will stay Tanaka after stalk or the climing pulverizing of seedling, as the fertilizer use of next batch crop, to the pollution of environment, helps environmental protection after helping saving agriculture production cost and avoiding crop straw burning.The normally used agricultural machinery of crushed stalk is field-returning machine, the structure of field-returning machine mainly is divided into hammer pawl formula and gets rid of the pawl formula, though the structure difference of two kinds of field-returning machines, can both reach the climing purpose of crushing straw or seedling, but these two kinds of common shortcomings of field-returning machine are: for the crops of ridging plantation, for example during straw chopping and returning such as jade, Chinese sorghum, since the crop later stage and the stage of ripeness when running into strong wind and rainwater weather, the phenomenon that plant will occur lodging; And the climing class crop of those seedlings, as potato, pachyrhizus etc., it is just shorter itself to grow, have to such an extent that can direct tiling grow on the ground, will strike the beam in furrow after running into sleet or rainwater, have in addition can be embedded in the earth, during the broken work of field-returning machine conducting powder, be not easy short plant is pulverized, had a strong impact on quality and efficient that plant is pulverized.

The utility model content

Technical problem to be solved in the utility model provides a kind of good crushing effect, plant is pulverized straw cutting apparatus dedicated tool completely.

For solving the problems of the technologies described above, the technical solution of the utility model is: the straw cutting apparatus dedicated tool is installed on the swivel knife shaft of field-returning machine, comprise cutter spindle sleeve, the outer surface of described cutter spindle sleeve is fixed with handle of a knife, and the outer end of described handle of a knife is fixed with cutter head, and described handle of a knife is provided with the pectinid device.

As optimized technical scheme, described pectinid device comprises the pectinid sheet that is arranged on the described handle of a knife and has the windward side.

As optimized technical scheme, the plane parallel of described pectinid sheet in the axis of described swivel knife shaft or with the dead in line of described swivel knife shaft.

As optimized technical scheme, described handle of a knife is flat, and described handle of a knife is double does described pectinid sheet.

As optimized technical scheme, described handle of a knife and described cutter head are integral structure, and the junction of described handle of a knife and described cutter head in the shape of a spiral the shape transition be connected.

As optimized technical scheme, the blade of described cutter head is the antifriction alloy blade.

Owing to adopted technique scheme, the straw cutting apparatus dedicated tool is installed on the swivel knife shaft of field-returning machine, comprises cutter spindle sleeve, and the outer surface of described cutter spindle sleeve is fixed with handle of a knife, and the outer end of described handle of a knife is fixed with cutter head, and described handle of a knife is provided with the pectinid device.The beneficial effects of the utility model are: when field-returning machine moves ahead in work, cutter can be inserted into the furrow deep, and high speed rotating under the drive of field-returning machine swivel knife shaft, utilize the pectinid device to produce bigger wind-force during rotation, the negative pressure of field-returning machine is increased, thereby plant such as climing and weeds produces stronger suction to stalk, the seedling of lodging, it is comparatively thorough to make field-returning machine pulverize plant, improve the pulverizing quality and the efficient of field-returning machine, helped to improve agricultural tillage efficient.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is the structural representation of the utility model embodiment two;

Fig. 4 is the end view of Fig. 3;

Among the figure: the 1-cutter spindle sleeve; The 2-handle of a knife; The 3-cutter head; 4-pectinid sheet.

Embodiment

Below in conjunction with drawings and Examples, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Embodiment one:

Shown in Fig. 1 and Fig. 2 are common, the straw cutting apparatus dedicated tool is installed on the swivel knife shaft of field-returning machine, comprises cutter spindle sleeve 1, utilize mechanical parts such as bolt present embodiment to be fixed on the swivel knife shaft of field-returning machine maintaining for convenience detach or replacing by cutter spindle sleeve 1 during use; The outer surface of described cutter spindle sleeve 1 is fixed with handle of a knife 2, the outer end of described handle of a knife 2 is fixed with cutter head 3, described handle of a knife 2 is provided with the pectinid device, the device of pectinid described in the present embodiment comprises the pectinid sheet 4 that is arranged on the described handle of a knife 2 and has the windward side, the plane parallel of described pectinid sheet 4 in the axis of described swivel knife shaft or with the dead in line of described swivel knife shaft.The length of cutter head described in the present embodiment 3 is 12cm-15cm, and the width of described cutter head 3 is 4cm-6cm, and the length of handle of a knife 2 can be set to long and short etc. dissimilar.Certainly the size dimension of present embodiment does not influence protection domain of the present utility model, can use the cutter head 3 and the handle of a knife 2 of different length and width according to the actual conditions manufacturing, the needs when pulverizing the variety classes plant to satisfy field-returning machine.

Field-returning machine is when crushed work, present embodiment can be inserted into the furrow deep, handle of a knife, pectinid sheet and cutter head high speed rotating under the drive of rotating shaft, even can reach 2200N/m, the pectinid sheet can produce very big wind-force when high speed rotating, the negative pressure of field-returning machine is increased, and the plant of lodging is picked up and enters the cutter place of field-returning machine, thereby pulverize up hill and dale, improved crushing effect.And the blade of described cutter head is that wear resistant alloy material is made, and has wear-resisting preferably effect, prolonged the service life of cutter widely, helps saving resource.

Embodiment two:

As shown in Figure 3 and Figure 4, the difference of present embodiment and the foregoing description is: handle of a knife described in the present embodiment 2 is set to flat, and described handle of a knife 2 is double does described pectinid sheet, and described handle of a knife 2 is an integral structure with described cutter head 3, helps mass automatic production.And the junction of described handle of a knife 2 and described cutter head 3 shape transition in the shape of a spiral is connected, and helps producing more powerful wind-force, can arrive the one better pectinid effect than embodiment.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

All are from design of the present utility model, and the structure conversion of having done without creative work all drops within the protection domain of the present utility model.

Claims

1. the straw cutting apparatus dedicated tool is installed on the swivel knife shaft of field-returning machine, comprises cutter spindle sleeve, and the outer surface of described cutter spindle sleeve is fixed with handle of a knife, and the outer end of described handle of a knife is fixed with cutter head, it is characterized in that: described handle of a knife is provided with the pectinid device.

2. straw cutting apparatus dedicated tool as claimed in claim 1 is characterized in that: described pectinid device comprises the pectinid sheet that is arranged on the described handle of a knife and has the windward side.

3. straw cutting apparatus dedicated tool as claimed in claim 2 is characterized in that: the plane parallel of described pectinid sheet in the axis of described swivel knife shaft or with the dead in line of described swivel knife shaft.

4. straw cutting apparatus dedicated tool as claimed in claim 2 is characterized in that: described handle of a knife is flat, and described handle of a knife is double does described pectinid sheet.

5. straw cutting apparatus dedicated tool as claimed in claim 4 is characterized in that: described handle of a knife and described cutter head are integral structure, and the junction of described handle of a knife and described cutter head in the shape of a spiral the shape transition be connected.

6. as the described straw cutting apparatus dedicated tool of the arbitrary claim of claim 1-5, it is characterized in that: the blade of described cutter head is the antifriction alloy blade.