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Processing technology of mower blade

A processing technology and lawn mower technology, which is applied to harvesters, cutters, agricultural machinery and implements, etc., can solve the problems of low processing accuracy and short service life of rotary lawn mower blades, and achieve good blades and improved Tempering stability, good mowing effect

Active Publication Date: 2015-01-07
安庆创跃电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the problems of short service life and low machining accuracy of rotary lawn mower blades

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: A kind of processing technology of mower blade, its processing step is as follows:

[0022] (1) Use matlab software to build a model, and determine that the initial trajectory of the blade is composed of straight lines and arcs;

[0023] Among them, the linear processing trajectory is based on the starting point, which can describe the entire straight line; the arc processing trajectory is to first determine the starting point and end point; calculate the starting angle, radius, coordinates of the starting point, and determine the cutting length and radian;

[0024] (2) Use a stamping die to stamp GCr15 steel to form a prototype of the blade. The prototype of the blade adopts the shape of a sickle blade, and the blade is set at the inner end of the blade. The blade is gradually thickened from the blade to the back of the blade. The thickness of the back of the blade is 2mm;

[0025] (3) Quenching the preform obtained in step (2) at a temperature of 830°C, a...

Embodiment 2

[0032] Example 2: The difference from Example 1 is that the blade back thickness in step (2) is 4mm, quenching at 850°C in step (3), heat preservation for 1h, and the fine grinding spindle speed in step (4) is controlled at 0.320m / s , the speed of the grinding wheel is controlled at 38m / s, and the surface of the blade is heated by light waves at 400°C in step (9).

[0033] The beneficial effects of adopting the above technical solutions are: the processing technology of a lawn mower blade in the present invention includes model building → blade blank stamping → quenching → grinding cutting → edge cutting → flaw detection → heat treatment → cooling → reheating treatment. In the step (2) mentioned in the present invention, GCr15 is selected as the blank material, which has low cost and high-quality steel grade, and has the characteristics of good metal strength, plasticity and toughness; the hardness of the workpiece is 28HRC, which is convenient for subsequent cutting. The qu...

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Abstract

The invention provides a processing technology of a mower blade and belongs to the technical field of garden equipment processing. The processing technology includes establishing a model, performing punching to acquire a blade blank, performing quenching, performing milling and cutting, performing edging on the blade blank, performing flaw detection, performing heat treatment, performing cooling and performing reheat treatment. By the use of the processing technology, the cutting blade is high in processing accuracy, service life of a mower is prolonged, repeated milling and utilization of the blade is facilitated, anti-corrosion effect of the blade is high, and requirements of modernization production are met.

Description

technical field [0001] The invention relates to the technical field of garden equipment processing, in particular to a processing technology of a lawnmower blade. Background technique [0002] With the development of the economy and the continuous improvement of people's living standards, the garden industry has also developed rapidly, and lawn machinery has also developed rapidly. And the lawnmower is a kind of common machinery necessary in the gardening industry. Now the most efficient mowing is the rotary lawn mower. When the rotary knife mower cuts grass, it relies on the high-speed rotation of the blade to cut grass. It is characterized by strong adaptability to pasture and is suitable for high-yield pastures. It is not neat enough, there are many heavy cuts, and the power required per unit of cutting width is large. The cutting speed of the blade on the high-speed rotating cutter head impacting and cutting pasture (the peripheral speed of the root of the blade edge) i...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCA01D34/00B23P15/00
Inventor 程蓓
Owner 安庆创跃电器有限公司
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