阅读说明：本技术 一种碎土辊用切刀 (Cutter for soil crushing roller ) 是由 邓新华 于 2020-06-05 设计创作，主要内容包括：本发明的一种碎土辊用切刀,属于碎土辊技术领域,包括刀架和刀片,刀架为球壳结构,刀架的边缘设有若干个固定孔,刀架中部向球壳结构的重心处凹陷形成凸起,凸起处开有轴孔,刀架通过固定孔固定连接刀片,此设计的结构,将传统碎土辊的刀架和刀片的连接方法改为可拆卸,因此,此设计的结构,在针对不同的土地时可以选用不同型材可结构的刀片,便于更好的进行碎土作业。(The invention relates to a cutter for a soil crushing roller, which belongs to the technical field of soil crushing rollers and comprises a cutter frame and blades, wherein the cutter frame is of a spherical shell structure, a plurality of fixing holes are formed in the edge of the cutter frame, the middle part of the cutter frame is sunken towards the gravity center of the spherical shell structure to form a bulge, a shaft hole is formed in the bulge, and the cutter frame is fixedly connected with the blades through the fixing holes.)

1. The utility model provides a cutter for hack roller which characterized in that: including knife rest and blade, the knife rest is the spherical shell structure, the edge of knife rest is equipped with a plurality of fixed orifices, the knife rest middle part is sunken to the focus department of spherical shell structure and is formed protrudingly, protruding department opens there is the shaft hole, the knife rest passes through fixed orifices fixed connection blade.

2. The cutter for a soil crushing roller according to claim 1, wherein: a plurality of fixed orifices includes the fixed orifices that the cyclic annular equidistance of three circles was arranged, the cyclic annular fixed orifices of three circles includes outer lane punch combination, inner circle punch combination and well circle punch combination, the hole number of outer lane punch combination, inner circle punch combination and well circle punch combination is the same and one-to-one.

3. The cutter for a soil crushing roller according to claim 2, wherein: and the distance between the fixing hole of the outer ring hole group and the fixing hole of the inner ring hole group is equal to the distance between the fixing hole of the outer ring hole group and the fixing hole of the adjacent middle ring hole group.

4. The cutter for a soil crushing roller according to claim 1, wherein: the blade is provided with a straight slotted hole, and the length of the straight slotted hole is equal to the distance between the fixed hole of the outer ring hole group and the fixed hole of the inner ring hole group.

5. The cutter for a soil crushing roller according to claim 1, wherein: a plurality of reinforcing plates are arranged between the protrusions and the tool rest, and the reinforcing plates are evenly arranged on the circumference.

6. The cutter for a soil crushing roller according to claim 1, wherein: and a bolt is arranged in the fixing hole, and the blade is fixedly connected with the cutter frame through the bolt.

Technical Field

The invention belongs to the technical field of soil crushing rollers, and particularly relates to a cutter for a soil crushing roller.

Background

The automatic subsoiler is one of common devices in agricultural production, and has the main effects of turning out soil agglomerated underground, loosening soil, facilitating crop planting, and generally causing the soil agglomerated by the subsoiler to agglomerate seriously, so that soil crushing equipment is required to further crush the agglomerated soil. Therefore, the subsoiler is generally provided with soil crushing rollers, and the soil crushing rollers can crush the caked soil turned out by the subsoiler, so that the soil is more refined and more suitable for planting. Most of the soil breaking devices attached to the existing subsoilers are toothed drums, and the effect is not ideal in actual work.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to solve the existing problems.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the cutter for the soil crushing roller comprises a cutter frame and a blade, wherein the cutter frame is of a spherical shell structure, a plurality of fixing holes are formed in the edge of the cutter frame, the middle of the cutter frame is sunken towards the center of gravity of the spherical shell structure to form a bulge, a shaft hole is formed in the bulge, and the cutter frame is fixedly connected with the blade through the fixing holes.

Preferably, the plurality of fixing holes comprise three circles of fixing holes which are annularly and equidistantly arranged, the three circles of fixing holes comprise an outer circle hole group, an inner circle hole group and a middle circle hole group, and the outer circle hole group, the inner circle hole group and the middle circle hole group have the same number and are in one-to-one correspondence.

Preferably, the distance between the fixing hole of the outer ring hole group and the fixing hole of the inner ring hole group is equal to the distance between the fixing hole of the outer ring hole group and the fixing hole of the adjacent middle ring hole group.

Preferably, the blade is provided with a straight slot, and the length of the straight slot is equal to the distance between the fixing hole of the outer ring hole group and the fixing hole of the inner ring hole group.

Preferably, a plurality of reinforcing plates are arranged between the protrusions and the tool rest, and the reinforcing plates are uniformly arranged on the circumference.

Preferably, a bolt is arranged in the fixing hole, and the blade is fixedly connected with the tool rest through the bolt.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) the cutter for the soil crushing roller comprises a cutter frame and a blade, wherein the cutter frame is of a spherical shell structure, a plurality of fixing holes are formed in the edge of the cutter frame, the middle of the cutter frame is sunken towards the center of gravity of the spherical shell structure to form a protrusion, a shaft hole is formed in the protrusion, and the cutter frame is fixedly connected with the blade through the fixing holes.

Drawings

FIG. 1 is a schematic view showing a structure of a cutter for a soil crushing roller according to the present invention;

FIG. 2 is a sectional view of a cutter for a soil crushing roller according to the present invention;

FIG. 3 is a view showing a mounting manner of a cutter for a soil crushing roller according to the present invention;

FIG. 4 is a second view showing the installation manner of the cutter for the soil crushing roller according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a tool holder; 110. a fixing hole; 120. a protrusion; 121. a shaft hole; 130. an outer ring hole group; 140. a middle ring hole group; 150. an inner ring hole group; 160. a reinforcing plate;

200. a blade; 210. a straight slot hole.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.