CN210868625U

CN210868625U - Rotary blade for rotary cultivator

Info

Publication number: CN210868625U
Application number: CN201921724491.9U
Authority: CN
Inventors: 刘文陶
Original assignee: Qingdao Voruitian Agricultural Equipment Co ltd
Current assignee: Qingdao Voruitian Agricultural Equipment Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-06-30
Anticipated expiration: 2029-10-15

Abstract

The utility model relates to an agricultural implement spare part technical field, concretely relates to rotary blade for rotary cultivator, including handle of a knife and blade, the one end of blade links to each other with the handle of a knife, the other end of blade is buckled to one side arc of blade, the blade includes blade upper portion and blade lower part, the lower limb on blade upper portion with the top edge of blade lower part is connected, the lower limb on blade upper portion is to the lopsidedness of blade, the lower limb of blade lower part is to the opposite side slope of blade, thereby makes the blade is in blade upper portion with the junction of blade lower part forms to the bellied muscle that rises of blade one side. The rotary blade with the structure has high crushing performance and good bending and breaking resistance.

Description

Rotary blade for rotary cultivator

Technical Field

The utility model relates to an agricultural implement spare part technical field, concretely relates to rotary blade for rotary cultivator.

Background

The rotary tillage operation can improve the structure of soil, thereby providing good conditions for subsequent mechanical operation, seed germination and crop growth. The rotary blade is a core component of the rotary cultivator and plays an important role in the cultivation process.

The structure of a rotary blade among the prior art is shown in fig. 1 and 2, and rotary blade includes handle of a knife and blade, and the blade includes side tangent plane and tangent plane, and the tangent plane is located the front portion of side tangent plane, and the top of tangent plane is bent to one side arc of side tangent plane, and the rotary blade of this kind of structure is when ploughing, and the flow direction of mud is one-way, and crushing performance is relatively poor to bending resistance fracture resistance also is relatively poor.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a rotary blade, the crushing performance of the rotary blade of this kind of structure is high-efficient, and the bending resistance is good to break simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a rotary tillage cutter for rotary cultivator, includes handle of a knife and blade, the one end of blade links to each other with the handle of a knife, the other end of blade is buckled to one side arc of blade, the blade includes blade upper portion and blade lower part, the lower limb on blade upper portion with the top edge of blade lower part is connected, the lower limb on blade upper portion inclines to one side of blade, the lower limb of blade lower part inclines to the opposite side of blade, thereby makes the blade is in blade upper portion with the junction of blade lower part forms to the bellied muscle that rises of blade one side.

Furthermore, a cutting edge is arranged on the lower edge of the lower portion of the knife body, one end, close to the knife handle, of the cutting edge serves as a starting point, one end, far away from the knife handle, of the cutting edge serves as a terminal point, and the terminal point of the knife handle is not overlapped with the terminal point of the lower portion of the knife body.

Further, the size of the broken tail coincides with the size of the radius of gyration thereof.

Further, the upper blade part and the lower blade part are integrally formed.

Further, the connection part of the upper part of the knife body and the lower part of the knife body is in smooth transition.

Further, the knife handle and the knife body are integrally formed.

Further, an alloy coating is arranged on the blade.

The utility model discloses a high-efficient rotary blade, through setting up the lower limb on blade upper portion and the lower limb of blade lower part respectively to the both sides slope of blade, thereby make the blade form to blade one side bellied muscle of playing in the junction of blade upper portion and blade lower part, through the original simple plane radian with the rotary blade among the prior art, change into and be provided with the radian of muscle, not only can improve the stress intensity of rotary blade, improve the anti-bending fracture resistance of rotary blade, can also follow one-way change to two-way with former mud flow direction, improve the crushing performance of rotary blade, improve the work efficiency of rotary cultivator. And the upper end of the starting point of the blade is provided with a reinforcing rib, so that the bending resistance and the breaking resistance of the rotary blade are further improved.

Drawings

FIG. 1 is a front view of a prior art rotary blade;

FIG. 2 is a side view of a prior art rotary blade;

FIG. 3 is a front view of the rotary blade of the present invention;

FIG. 4 is a side view of the rotary blade of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

in the above figures: 1-a knife handle; 2-a blade body; 21-the upper part of the knife body; 22-the lower part of the blade body; 221-end point; 23-forming ribs; 24-a blade edge; 241-a starting point; 242-end point; 25-tail breaking; 101-side section; 102-normal section.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The rotary blade in the prior art is structurally shown in fig. 1 and 2, and comprises a handle and a blade body, wherein the blade body comprises a side cutting surface 101 and a front cutting surface 102, the front cutting surface 102 is positioned at the front part of the side cutting surface 101, and the top end of the front cutting surface 102 is bent towards one side of the side cutting surface 101 in an arc shape.

In order to the above situation, the utility model provides a rotary blade for rotary cultivator, its concrete structure is as shown in fig. 3 and fig. 4, including integrated into one piece's handle of a knife 1 and blade 2, the one end of blade 2 links to each other with handle of a knife 1, the other end of blade 2 is buckled to one side arc of blade 2, a serial communication port, blade 2 includes blade upper portion 21 and blade lower part 22, the lower limb of blade upper portion 21 and the top edge of blade lower part 22 are connected, the lower limb of blade upper portion 21 is to one side slope of blade 2, the lower limb of blade lower part 22 is to the opposite side slope of blade 2 to make blade 2 form to blade 2 one side bellied muscle 23 that rises in the junction of blade upper portion 21 and blade lower part 22. A reinforcing rib is arranged at the upper end of the starting point of the cutting edge 24 at the joint of the knife handle 1 and the knife body 2.

In the above embodiment, the lower edge of blade upper portion 21 and the lower edge of blade lower part 22 are respectively inclined to the two sides of blade 2, thereby making blade 2 form the protruding muscle 23 that rises to blade 2 one side at the junction of blade upper portion 21 and blade lower part 22, through the original simple plane radian with the rotary blade among the prior art, change into the radian that is provided with the muscle, not only can improve the stress intensity of rotary blade, improve the anti-bending and anti-breaking performance of rotary blade, can also change the former mud flow direction from one-way to two-way, improve the crushing performance of rotary blade, improve the work efficiency of rotary cultivator. And the upper end of the starting point of the blade 24 is provided with a reinforcing rib, so that the bending resistance and the breaking resistance of the rotary blade are further improved.

The lower edge of the blade lower portion 22 is provided with a blade 24, one end of the blade 24 close to the handle 1 is a starting point 241, and one end far away from the handle is a terminal point 242, and in order to improve the wear resistance of the rotary blade, the terminal point 242 of the handle 1 is not overlapped with the terminal point of the blade lower portion 22. The portion of the blade lower portion 22 between the terminus 242 of the cutting edge 24 and the terminus 221 of the blade lower portion 22 is referred to as the tang 25, and the tang 25 is sized to coincide with its radius of gyration. The arrangement can not increase the stress load of the rotary blade, so that the thickness of the tail 25 is thicker than that of the original product, and the wear resistance is improved. In order to enhance the strength of the blade edge, the blade edge 24 is also provided with an alloy coating.

In order to enhance the strength of the rotary blade, the blade upper part 21 and the blade lower part 22 are integrally formed, and the joint of the blade upper part 21 and the blade lower part 22 is smoothly transited. The arrangement can not only enhance the strength of the blade body, but also reduce the friction force when the rotary blade is used for tillage.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. The utility model provides a rotary tillage cutter for rotary cultivator, includes handle of a knife and blade, the one end of blade links to each other with the handle of a knife, the other end of blade is buckled to one side arc of blade, a serial communication port, the blade includes blade upper portion and blade lower part, the lower limb on blade upper portion with the top edge of blade lower part is connected, the lower limb on blade upper portion inclines to one side of blade, the lower limb of blade lower part inclines to the opposite side of blade, thereby makes the blade is in blade upper portion with the junction of blade lower part forms to the bellied muscle that rises in blade one side.

2. A rotary tillage blade for a rotary cultivator according to claim 1, wherein a blade is provided at a lower edge of the lower portion of the blade body, an end of the blade close to the handle is a starting point, an end of the blade far from the handle is a terminal point, and the terminal point of the handle is not coincident with the terminal point of the lower portion of the blade body.

3. A rotary blade for a rotary cultivator according to claim 2, wherein a portion of the lower part of the blade body between the end point of the blade edge and the end point of the lower part of the blade body is a broken tail, and the size of the broken tail coincides with the size of the radius of gyration thereof.

4. A rotary tiller according to claim 1, wherein said blade upper portion and said blade lower portion are integrally formed.

5. A rotary tiller rotary blade according to claim 4, wherein a junction between the upper portion of the blade body and the lower portion of the blade body is smoothly transitioned.

6. A rotary blade for a rotary cultivator according to claim 1, wherein the handle and the blade are integrally formed.

7. A rotary blade according to claim 2, wherein the blade is provided with an alloy coating.