Auto-tensioning drive structure and support head assembly for monitoring equipment

Abstract

The invention relates to an automatic tension driving structure and a tripod head adopting the driving structure. The driving structure includes a bracket, a drive motor which is provided with an output wheel and mounted on the bracket by an elastic sliding part, a driven wheel which is rotatablely installed on the bracket, and a driving belt or a chain which is connected with the output wheel and the driven wheel of the drive motor; the elastic sliding part can be glidingly arranged on the bracket by guide structure; the elastic sliding part includes a sliding part used for fixedly installing the drive motor and an elastic tension part which can push the sliding part away from the driven wheel and strain the driving belt or the chain. The drive motor is glidingly arranged on the bracket by the elastic sliding part, under the action of the elastic force of the elastic tension part of the elastic sliding part, the drive motor can be automatically pushed away from the driven wheel, and the driving belt or the chain is strained, thus realizing the purpose of automatic tension and omitting a regulating device in the prior art; furthermore, the invention has the advantages of simple structure, convenient installation and no need of regularly adjusting pre-tension force.

Description

technical field [0001] The invention relates to a transmission structure, in particular to an automatic tension transmission structure and a pan-tilt assembly of a monitoring device using the transmission structure. Background technique [0002] In the electronic and mechanical industries, transmission structures are often used to transmit power. The most common way includes brackets, drive motors, driven wheels, and belts or chains. The driving motor is fixedly installed on the bracket, and the driven wheel is rotatably installed on the bracket through structures such as bearings. The belt or chain connects the output end of the driving motor and the driven wheel, and transmits the power output by the driving motor to the driven wheel to drive the driven wheel to rotate. [0003] Inconvenient installation and tensioning of drive belts or chains is often encountered in such drives. Commonly used tensioning methods include adjusting the distance between shafts and using ten...

AI Technical Summary

Problems solved by technology

This regular tensioning method has the disadvantage of being difficult to install and adjust

However, the commonly used automatic tensioning device has complex structure and difficult installation.

In addition, if the transmission belt or chain is tensioned by the tensioning wheel, after a certain period of use, the pressure of the tensioning wheel on the transmission belt or chain will decrease, so the position of the tensioning wheel must be readjusted to ensure that the transmission belt is Or the normal transmission of the chain, there are shortcomings that need to be checked and adjusted frequently

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