Electric chain saw

Abstract

The invention creatively discloses an electric chain saw. The electric chain saw comprises a motor, a housing, a chain wheel, a chain plate, a saw chain, a lithium battery, a secondary handle, a control handle, a control switch, a secondary handle protecting plate and an oil filling device. The electric chain saw is characterized in that the lithium battery is arranged at the outer part and is used for transmitting power between a motor rotating shaft and the chain wheel; the chain plate and the saw chain form a cutting device; and the saw chain comprises a driving element and a cutting element which are hinged with each other. According to the electric chain saw, a transmission mechanism between the motor rotating shaft and the chain wheel is reliable, convenient to carry, easy to operate, convenient to mount, and low in fault rate; the mechanical transmission noise is obviously reduced; and moreover, motor parameters can be adjusted to realize the normal use of chain saws with different sizes.

Description

technical field [0001] The invention relates to an electric tool, in particular to an electric chain saw with a lithium battery as a power source. Background technique [0002] At present, chain saws are divided into fuel chain saws and electric chain saws. Electric chain saws have the characteristics of no pollution, low noise, easy operation and maintenance, and are more and more favored by users. On occasions, the trend of electric chain saws replacing traditional fuel chain saws is becoming more and more obvious. Lithium battery power supply has gradually become the main form of electric chain saws. The existing electric chain saws usually connect the motor rotating shaft to the sprocket through a transmission mechanism. The transmission mechanism is usually a gear system. Because of the existence of the gear transmission mechanism, the structure of the whole machine is complicated and the weight is increased. SUMMARY OF THE INVENTION [0003] In view of this, the pur...

AI Technical Summary

Problems solved by technology

[0002] At present, chain saws are divided into fuel chain saws and electric chain saws by means of power, and electric chain saws have the characteristics of no pollution, low noise, convenient use and operation, and maintenance-free, and are more and more popular among users. Occasionally, the trend of electric chainsaws replacing traditional fuel chainsaws is becoming more and more obvious. Lithium battery power supply has gradually become the main form of electric chainsaws. Existing electric chainsaws usually connect the motor shaft to the sprocket through a transmission mechanism. The transmission mechanism is usually a gear system. Because of the existence of the gear transmission mechanism, the structure of the whole machine is complicated and the weight increases.

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