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Overload protection device for reciprocating mowers

A protection device, lawnmower technology, applied in harvesters, agricultural machinery and implements, applications, etc., can solve the problems of laborious, complex structure, large vibration, etc., and achieve light weight, simple structure, and reduce natural vibration. Effect

Active Publication Date: 2015-09-30
常州汉森机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these safety devices include decoupling type, wooden connecting rod type, double spring alternate transmission type and belt transmission type, etc. These safety devices are not only complex in structure, but also vibrate greatly during work, and the operator not only works hard during use strenuous and extremely uncomfortable

Method used

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  • Overload protection device for reciprocating mowers
  • Overload protection device for reciprocating mowers

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing:

[0020] refer to figure 1 , the overload protection device of the reciprocating lawn mower of the present invention includes an eccentric wheel 1 and a connecting rod 2 connected to the eccentric wheel 1 at one end. It also includes a first sleeve 3 , a second sleeve 7 , a compression spring 5 , an axial limiting device, and a connecting seat 11 . The first sleeve 3 is sleeved on the connecting rod 2 , and the first sleeve 3 forms a sliding fit with the connecting rod 2 . One end of the first sleeve 3 is axially limited on the connecting rod 2, and the connecting rod 2 is provided with a shaft shoulder 2a, and the first sleeve 3 is limited by the shaft shoulder 2a. The other end of the first sleeve 3 is provided with a radial first flange 3a, and the first flange 3a is integrally formed with the first sleeve, that is, the first flange 3a is the diameter of the circumferent...

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Abstract

The invention relates to an overload protection device for a reciprocating lawn mower. One end of a first sleeve is axially limited on a connecting rod, and the other end of the first sleeve is provided with a radial first flange. One end of a second sleeve is axially limited on the connecting rod through an axial limiting device, and the other end of the second sleeve is provided with a radial second flange opposite to the first flange. A compression spring is located between the first sleeve and the second sleeve, and the two ends of the compression spring are limited through the first flange and the second flange respectively. A connecting base is respectively provided with a radial first connecting lug and a radial second connecting lug, after the first connecting lug is arranged on the first sleeve in a sleeved mode and matched with the first sleeve in a sliding mode, the first connecting lug makes contact with the first flange, and after the second connecting lug is arranged on the second sleeve in a sleeved mode and matched with the second sleeve in a sliding mode, the second connecting lug makes contact with the second flange. The overload protection device can protect a blade when encountering a barrier, and because the overload protection device is compact in structure and little in material, vibration generated in reciprocating motion can be relieved in work.

Description

technical field [0001] The invention belongs to the technical field of lawnmowers, in particular to an overload protection device for a reciprocating lawnmower. Background technique [0002] The reciprocating mower relies on the relative shearing motion of the moving knife and the fixed knife on the cutter to cut pasture. Its characteristic is that the stubble is neatly cut, and the power required per unit cutting width is small; but it has poor adaptability to different growth states of pasture and is easy to block. It is suitable for flat natural grassland and artificial grassland with general yield. [0003] The working principle of the reciprocating lawn mower is: the lawn mower or pruning machine is a tool that converts the rotational motion of the motor into the left and right swing of the blade, or swings back and forth through the eccentric wheel, so as to cut the object. Because the cutter vibrates greatly during operation, the improvement of operation speed is li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D75/18
Inventor 孙旭亮李小春李文华
Owner 常州汉森机械股份有限公司
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