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Self-protection safety working head of lawn mower

A self-protection and lawn machine technology, which is applied in the direction of lawn mowers, harvesters, agricultural machinery and implements, etc., can solve the problems of working head and blade damage, blade fragmentation, working head cannot move, etc., to improve the ability to cross obstacles capacity, machine reliability, and the effect of improving structural reliability

Active Publication Date: 2015-08-19
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-protection safety working head of lawn mower
  • Self-protection safety working head of lawn mower
  • Self-protection safety working head of lawn mower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

Embodiment 2

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

Embodiment 3

[0033] like Figure 5 , Image 6 As shown, the present invention is a self-protection safety working head of a lawn mower. The circular cutter head 7 is equipped with a blade 8. The circular cutter head 7 is installed on the motor output shaft 1 through a nut 10 and a washer 9. The circular cutter head 7 There is a clearance fit with the motor output shaft 1, there is a movable distance d in the axial direction between the circular cutter head 7 and the motor output shaft 1, a spring 5 is arranged between the circular cutter head 7 and the motor output shaft 1, and there is a spring stop above the spring 5 The ring 2 is installed on the motor output shaft 1, and the outer surface of the spring 5 is provided with a rubber protective cover 6.

[0034] According to 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 ...

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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 lawn machine working head, in particular to a self-protection safety working head of a self-propelled lawn machine. Background technique [0002] The lawn mower is used for lawn mowing and leveling, which is convenient and efficient to use. The current lawn mower working head and the motor output shaft are fixedly installed, and several blades are installed on the working head. During operation, the high-speed rotation of the motor drives the working head to rotate at a high speed, and the blades on the working head perform rapid cutting. [0003] Since the working head is fixedly installed relative to the motor output shaft, when encountering obstacles such as stones during 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 will be dangerous. SUMMARY OF THE INVENTION [0004] In order to solve the problem in the prior art that the w...

Claims

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Application Information

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Patent Type & Authority Patents(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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