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Self-protecting safe working head of lawn machine

A self-protection, lawn machine technology, used in lawn mowers, harvesters, agricultural machinery and implements, etc., can solve the problems of broken blades, damage to the working head and blade, and the inability of the working head to move, so as to achieve machine reliability and improve performance. The effect of the ability to overcome obstacles and improve the reliability of the structure

Active Publication Date: 2012-07-18
NANJING SUMEC INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem in the prior art that the working head of the lawn mower is fixedly installed relative to the output shaft of the motor, the working head cannot be moved, and the working head and the blade are easily damaged, and even the blade is broken. Safety working head, effectively protect the working head and blade, and make it safer to use

Method used

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  • Self-protecting safe working head of lawn machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 , figure 2 As shown, a self-protection safety working head of a lawn mower of the present invention, a circular cutterhead 7 is equipped with a blade 8, and the circular cutterhead 7 is installed on the connecting rod 4 through a nut 10 and a gasket 9, and the connecting rod 4 passes through ten thousand The knuckle 3 is connected with the motor output shaft 1, the circular cutterhead 7 and the connecting rod 4 are clearance fit, there is an axial movable distance d between the circular cutterhead 7 and the connecting rod 4, and the circular cutterhead 7 and the motor output A spring 5 is arranged between the shafts 1, and a spring retaining ring 2 is installed on the motor output shaft 1 above the spring 5, and a rubber protective cover 6 is arranged on the outside of the spring 5.

Embodiment 2

[0031] Such as image 3 , Figure 4 As shown, a self-protection safety working head of a lawn mower of the present invention, a circular cutterhead 7 is equipped with a blade 8, and the circular cutterhead 7 is installed on the connecting rod 4 through a nut 10 and a gasket 9, and the connecting rod 4 is locked. The pin 11 is hinged with the motor output shaft 1, the circular cutterhead 7 and the connecting rod 4 are clearance fit, the circular cutterhead 7 and the connecting rod 4 have an axial movable distance d, and the circular cutterhead 7 and the motor output shaft A spring 5 is arranged in one room, and a spring retaining ring 2 is installed on the motor output shaft 1 above the spring 5 , and a rubber protective cover 6 is arranged on the outside of the spring 5 .

Embodiment 3

[0033] Such as Figure 5 , Figure 6 As shown, the self-protection safety working head of a kind of lawn machine of the present invention, blade 8 is housed on the circular cutter head 7. There is a clearance fit between the circular cutter head 7 and the motor output shaft 1, and there is an axial movable distance d between the circular cutter head 7 and the motor output shaft 1. There is a spring 5 between the circular cutter head 7 and the motor output shaft 1, and there is a spring stopper above the spring 5. The ring 2 is installed on the output shaft 1 of the motor, and the outside of the spring 5 is provided with a rubber protective cover 6 .

[0034] Through the above three embodiments, under the action of the spring 5, the circular cutter head 7 can move the movable distance d in the axial direction, and can swing around the universal joint 3 or the lock pin 11, so that the entire working head will also Along with the movement and deflection, the working head avoids...

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Abstract

The invention discloses a self-protecting safe working head of a lawn machine and particularly discloses the self-protecting safe working head of a self-propelled lawn machine, comprising a motor output shaft, a round cutter head, blades, a connecting rod, a universal joint, a spring and a rubber protective cover, wherein a plurality of blades are arranged on the round cutter head; the self-protecting safe working head is characterized in that the round cutter head is connected with the motor output shaft through the connecting rod and the universal joint; and the spring is arranged between the round cutter head and the motor output shaft. When the self-protecting safe working head of the lawn machine meets barriers such as a stone during working, the working head automatically rebounds or deflects upwards so as to avoid the barriers, returns to the working position under the action of the spring after passing through the barriers, is protected to cross the barriers smoothly, improves the capability of the self-propelled lawn machine crossing the barrier, has self-protection function and is safer during the usage.

Description

technical field [0001] The invention relates to a working head of a lawn mower, in particular to a self-protection safety working head of a self-propelled lawn mower. Background technique [0002] The lawn machine is used for trimming and leveling the lawn, and it is convenient and efficient to use. The working head of the current lawn mower is fixedly installed with the output shaft of the motor, and several blades are installed on the working head. [0003] Since the working head is fixedly installed relative to the output shaft of the motor, when obstacles such as stones are encountered in the working process, the working head and the blade will be damaged, and even the blade will be broken, and the reaction force of the machine is dangerous. Contents of the invention [0004] In order to solve the problem in the prior art that the working head of the lawn mower is fixedly installed relative to the output shaft of the motor, the working head cannot be moved, and the wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D34/63A01D75/18A01D101/00
Inventor 林有余周国扬邢宝
Owner NANJING SUMEC INTELLIGENT TECH CO LTD
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