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Hay knife for lawn hay mower without tool holder

A lawn mower and lawn mower technology, applied in lawn mowers, harvesters, applications, etc., can solve the problems of no safety protection, large moment of inertia, and high power consumption, and achieve weight reduction, power consumption reduction, and construction cost. reduced effect

Active Publication Date: 2010-12-08
NINGBO DAYE GARDEN EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional lawn mowing devices use more and more expensive parts; they are also heavy, have a large moment of inertia, and consume more power; and the blade is rigidly connected. When encountering debris such as water pipes, it is head-to-head and there is no safety protection.

Method used

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  • Hay knife for lawn hay mower without tool holder
  • Hay knife for lawn hay mower without tool holder
  • Hay knife for lawn hay mower without tool holder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037]To improve the mowing device of the engine main shaft, at first it is to manufacture a lawn mower without a knife seat with a mowing knife. The material of the steel plate suitable for making knives should be optimized, and edge folds and multiple protrusions should be made in order to improve the modulus of material mechanics and reduce the thickness of the steel plate; suitable pre-heat treatment such as semi-annealing and tempering treatment, stretch forming or Hot forming, stamping forming again, make dimple (2), key (1), keyway (3), make the inner diameter of described dimple (2) be equal to or the tolerance is slightly larger than the outer diameter of engine main shaft. Then carry out normalizing and aging treatment; and grinding correction and oiling or blackening treatment. There is a hole in the bottom of the pit (2) so as to pass throu...

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Abstract

The invention provides improvement on a cutting mechanism of a lawn hay mower, which is used for a knife without an independent tool holder of a lawn hay mower so as to be called the hay knife for the lawn hay mower without the tool holder. The invention can reduce components and lower the cost, can lighten the weight and reduce the consumption power, and has a safeguard function. In the invention, the adopted technical method comprises the following steps of: directly punching a steel plate of the knife without a heavy tool holder so as to mould for connection; or producing the hay knife by means of welding and bonding. Anyway, the knife without the independent tool holder is formed by combining the tool holder and the knife into a whole, which is a substantially skillful combination of two kinds of joining ways. The knife is also provided with a safeguard key, and the invention provides various types of the hay knives.

Description

technical field [0001] The invention relates to a lawn mower blade used for mowing lawns in gardens, parks, roads and other places, especially a lawn mower that does not require an independent knife seat, which is called a lawn mower without a knife seat Use a lawn mower. Background technique [0002] Lawn mowers are widely used to mow grass in a mode that is sometimes self-propelled and sometimes not self-propelled by people's preferences. Operate the walker to pull the self-propelled control handle, and through the wire rope and the shift lever, the clutch is clutched, so that sometimes it is self-propelled and sometimes it is not. The drive gear reduction clutch of the self-propelled mechanism of the prior art is driven by the belt pulley that is contained in the engine main shaft. While the engine spindle mowing device, such as Figure 5 .As shown in the explosion diagram of the mowing device of the main shaft of the engine, it consists of the driving pulley (11), the ...

Claims

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Application Information

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IPC IPC(8): A01D34/52A01D101/00
CPCA01D34/73
Inventor 苏克
Owner NINGBO DAYE GARDEN EQUIP
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