Electric turnover mechanism

Abstract

The invention discloses an electric turnover mechanism, comprising a planetary wheel reducing motor, a worm wheel and worm transmission mechanism and a mechanism output shaft; the output of the planetary wheel reducing motor is linked with the worm wheel and the worm transmission mechanism; the worm output shaft and the mechanism output shaft are arranged in the same axis line; a first friction part is fixed at the output end of the worm wheel output shaft along the circumferential direction; a second friction part is fixed at the input end of the mechanism output shaft along the circumferential direction; two ends of a third friction part are arranged in the same axis line and are respectively connected with the first friction part and the second friction part along the circumferential direction. By adopting the structure, the electric turnover mechanism requires no more self-locking mechanisms and brake devices; furthermore, the whole friction mechanism has no clearance and the impact borne by the output shaft has damping effect; the electric turnover mechanism has the advantages that the structure is small, the mechanical efficiency is high, the output shaft can bear larger impact and the free clearance of the output shaft can be effectively eliminated.

Description

technical field [0001] The invention relates to an electric turning mechanism, in particular to an electric turning mechanism applied to a vehicle-mounted liquid crystal television. Background technique [0002] The electric turning mechanism is a device that uses the motor as the driving force to drive the object to turn over. It is widely used in various fields, such as in the car LCD TV. Clear and vivid, it has been installed on various vehicles more and more. The car LCD TV can play video information services and entertainment programs to eliminate the fatigue of people when riding in the car, to achieve public welfare publicity and to give passengers For the purpose of an excellent and relaxed travel environment, it is also a good advertising medium, which can bring more direct / more impactful advertising to more passengers, and its investment benefits are also extremely considerable. In order to ensure that the car LCD TV To improve the effect of use, it is usually nec...

AI Technical Summary

Problems solved by technology

However, the existing electric turning mechanism of this type usually uses a planetary gear motor as the driving mechanism. Since the planetary gear motor cannot be self-locked, a self-locking mechanism needs to be added, and in a small-sized environment, the planetary gear motor is The impact moment that can withstand is small, and a braking device needs to be added, which makes the structure of this type of electric turning mechanism more complicated; large with gaps

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