Low-cost angle measurement positioning and locking device based on worm gear and worm

Abstract

The invention relates to the technical field of worm and gear transmission, in particular to a low-cost angle measurement positioning and locking device based on a worm gear and a worm. The device comprises a main shaft, a base arranged outside the main shaft, a motor fixed to the base, a worm coaxially connected with an output shaft of the motor and located in the base, a worm gear rotationally connected with the worm and arranged on the main shaft in a sleeving mode, a circular table top fixed to the top end of the main shaft, an anti-dazzling screen fixed on the edge of the table top, and aphotoelectric switch fixed on the base and matched with the anti-dazzling screen. The motor drives the worm gear and the worm to rotate so as to drive the main shaft to rotate freely by 360 degrees,the worm gear and the worm with the variable lead and a stepping motor are used for reliably positioning at corresponding positions according to user requirements, the positioning precision is guaranteed, and the whole device is simple in structure and low in cost. The backlash of the worm gear and the worm is corrected through a backlash adjusting gasket, the idle stroke is eliminated, and the situations that the backlash of the worm gear and the worm becomes large and precision is reduced due to long-time use are avoided.

Description

technical field [0001] The invention relates to the technical field of worm gear transmission, in particular to a low-cost angle measuring positioning locking device based on worm gears. Background technique [0002] With the development of science and technology, the current angle measuring and positioning locking devices are mainly applied to related armored vehicles, ships, self-propelled artillery and north finders. The traditional angle measuring and positioning locking devices have complex structures, high costs, and complicated product operation processes. The overall running time of the product is relatively long, and the traditional angle-measuring positioning locking device mostly uses the toothed plate for mechanical locking. Its working principle is that the upper toothed plate that can move up and down meshes with the stationary lower toothed plate to form a lock. Limited by the tooth shape, it can only provide high-precision position accuracy for the inertial s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects in the prior art that cannot be reliably locked at any angle, complex structure, high cost and low precision, and provide a simple structure that can be reliably positioned and locked at any angle according to user needs. , low cost and high precision angle measuring locking device

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