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brush cutter

A technology for brush cutters and working heads, which is applied to harvesters, cutters, agricultural machinery and implements, etc. It can solve the problems of weak impact load resistance, easily damaged brush cutters, and high cost of gear transmission, achieving low cost, Reduce impact, vibration and noise reduction effect

Inactive Publication Date: 2019-01-11
SKYBEST ELECTRIC APPLIANCE SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing brush cutters generally have the following transmission methods, one is through gear transmission, and the cost of gear transmission is higher; the second is synchronous belt transmission, which has weak impact load resistance. When the cutting tool is subjected to impact load , easy to damage the brush cutter

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] like Figures 1 to 3 Shown is a brush cutter according to an embodiment of the present invention, which includes a working head 1 with a connecting portion 31 at its rear, and the extension rod 3 of the brush cutting machine is connected with the working head 1 through the connecting portion 31 . A handle 5 is provided at the rear of the extension rod 3 for the user to hold, and a power source is provided at the rear of the handle 5 . In this embodiment, the power source is a battery 4 , which provides an energy source for the motor 11 . Working head 1 includes power assembly, transmission assembly and cutting assembly, and described power assembly includes motor 11, and it has motor shaft 115, and described motor is DC motor, and rotating speed is about 18000rpm, because brush cutter working head 1 is relatively other garden tools (such as a lawnmower) is smal...

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PUM

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Abstract

The invention provides a brush cutter comprising an extension rod, a working head and a power source. The working head and the power source are arranged at two ends of the extension rod respectively, the working head comprises a power component, a transmission component and a cutting component, the power component comprises a motor and a motor shaft, the cutting component comprises a cutting disc and a driving shaft, the transmission component comprises a small pulley, a transmission belt and a large pulley, the small pulley sleeves the motor shaft, the large pulley sleeves the driving shaft, and the transmission belt is connected with the small pulley and the large pulley in a matched manner. When the cutting disc of the brush cutter is subjected to impact load, slippage between a ribbed belt and the large pulley is realized, and accordingly impact force transmitted to the motor shaft is lowered, and damage to the motor shaft is prevented. In addition, compared the prior art, the transmission component is low in cost and lower in vibration and nose.

Description

technical field [0001] The invention relates to a brush cutter, in particular to a transmission assembly of the brush cutter. Background technique [0002] Garden tools are widely used in the trimming and treatment of vegetation such as flowers, grasses and trees. Typical examples are brush cutters and lawn trimmers, which usually include a power source and an extension rod. One end of the extension rod is provided with a working head, and the cutting tool is below the working head. The cutting tool of the brush cutter is usually a blade, and the lawn mower is a blade or a grass rope. The output shaft of the power source drives the above cutting tool through the transmission assembly. The use of the brush cutter is different from that of the lawn mower. When using the lawn mower, the user needs to push the lawn mower, because the lawn mower is heavy, and its motor, cutterhead and other components are bulky and heavy; when the brush cutter is used, the user relies on the stre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D34/68
Inventor 孔钊魏娟王启东
Owner SKYBEST ELECTRIC APPLIANCE SUZHOU CO LTD