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S-shaped harrow cutter

A technology of rake blade and blade body, applied in the field of S-type rake blade, can solve the problems of short life, easy cracking, unsatisfactory mechanical performance index and fatigue strength, etc., and achieves improved fatigue strength, reduced product weight, and improved service life. Effect

Inactive Publication Date: 2009-12-02
青岛东陆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rake blade blanks on the market generally adopt the traditional rectangular cross-section, the mechanical performance index and fatigue strength are not ideal, the service life is not long, and cracks are prone to occur

Method used

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings and the embodiments thereof.

[0011] like figure 1 , an S-shaped rake knife, including a knife body, the knife body is an inverted S-shaped structure, the knife body includes a main blade 1 and a secondary blade 2, the main blade is a structure that bends upward along the axis on both sides; the secondary blade is helical The structure is elliptical in cross section. The main blade is provided with a plow point mounting hole 3 . The S-type rake is connected together with the plow point by bolts through the plow point installation hole 3, and is fixed on the agricultural machine frame to realize loosening and weeding operations on cultivated land.

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PUM

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Abstract

The invention discloses an S-shaped harrow cutter, which comprises a cutter body. The cutter body has an inverse S-shaped structure, the cutter body comprises a main blade and a secondary blade, and two side edges of the main blade are bent upwards along the axis; and the secondary blade has a structure of which spiral cross section is elliptic. By comparing the elliptic section adopted by the blank of the invention and the conventional oblong section, the product weight is lightened; and under the condition that the processing means and the thermal treatment mode are the same, the mechanical property index, namely the fatigue strength of the product is greatly improved, and the service life is improved by about 40 to 45 percent. The elliptic section of the main blade of the S-shaped harrow cutter is bent and folded to form a curved surface, and the defects that the prior harrow cutter is easy to generate cracks and the like are overcome.

Description

technical field [0001] The invention relates to a spare part of agricultural machinery, in particular to an S-shaped rake. Background technique [0002] The S-type rake is an accessory in agricultural machinery. It is connected with the plow point, and then fixed to the frame of the agricultural machinery to realize loosening and weeding operations on cultivated land. The product requires good consistency and high fatigue strength. The rake blade blanks on the market generally adopt the traditional rectangular cross-section, the mechanical performance index and fatigue strength are not ideal, the service life is not long, and cracks are prone to occur. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an S-shaped rake that is fatigue-resistant, has a long service life and is not prone to cracks. [0004] In order to solve the technical problem, the technical solution a...

Claims

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Application Information

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IPC IPC(8): A01B23/02A01B17/00
Inventor 丁刚
Owner 青岛东陆科技有限公司
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