Lifting device for rolling brush of small electric sweeper

Abstract

The invention provides a lifting device for a rolling brush of a small electric sweeper, comprising a bracket, chain wheels, nuts, a chain, a direct-current motor, a lead screw and a bearing block, wherein the chain is arranged between the chain wheels, the direct-current motor is connected with the chain wheels, the lead screw is connected with the chain wheels and the nuts, the bearing block is connected with the lead screw, guide rails are arranged on two ends of the bracket, and the bearing block is arranged between the guide rails of the two ends. The lifting device for the rolling brush of a small electric sweeper, disclosed by the invention, has the following technical effects that: (1) when the rolling brush goes up or down, a spiral transmission mechanism consisting of the nuts and the lead screw has a reinforcement function, and enables a lifting track of the rolling brush to be vertical to the ground so as to reach high-efficiency energy-saving purposes; (2) synchronous lifting of two ends of the rolling brush is realized by utilizing transmission of a chain and two spiral transmission mechanisms so that contact pressure of the rolling brush and the ground is balanced axially, and a sweeping effect of the rolling brush is improved; and (3) a vertical lifting action of the rolling brush is realized by utilizing a spiral transmission mechanism, the location is exact, the external impaction resistance is strong, the operation is stable, and the noise is low.

Description

technical field [0001] The invention relates to a small electric sweeper, in particular to a lifting device for the roller brush of the small electric sweeper. Background technique [0002] In the traditional electric vehicle sweeper system, the lifting of the roller brush is generally driven by hydraulic pressure, pneumatic or electric push rod and connecting rod mechanism. The positioning stability is not high, and it is difficult to ensure that the axial contact pressure of the roller brush is uniform, and when used in a small sweeper, due to the large volume and mass, the required installation space is large, and problems such as vibration, noise, and poor heat dissipation are prone to occur. . [0003] Therefore, it is necessary to provide a lifting device for the roller brush of an electric sweeper that makes the axial contact pressure of the roller brush even, stable in lifting, compact in structure, and reasonable in layout. Contents of the invention [0004]...

AI Technical Summary

Problems solved by technology

[0002] In the traditional electric vehicle sweeper system, the lifting of the roller brush is generally driven by hydraulic pressure, pneumatic or electric push rod and connecting rod mechanism. The positioning stability is not high, and it is difficult to ensure that the axial contact pressure of the roller brush is uniform, and when used in a small sweeper, due to the large volume and mass, the required installation space is large, and problems such as vibration, noise, and poor heat dissipation are prone to occur.

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