Transmission structure of PTZ (Pan/Tilt/Zoom) camera

Abstract

The invention relates to a transmission structure of a PTZ (Pan / Tilt / Zoom) camera, wherein the PTZ camera comprises a camera, a cloud platform and a supporting base; a motor and a rotating shaft are arranged in the cloud platform; a synchronous belt pulley is fixedly arranged at one end of the rotating shaft, which is positioned inside the cloud platform; the motor is in drive connection with the synchronous belt pulley through a belt; when the motor operates, the rotating shaft is driven to rotate in a bearing by the synchronous belt pulley; the synchronous belt pulley and the rotating shaft are coaxial mutually; one side of the synchronous belt pulley, which corresponds to the rotating shaft, is provided with a boss structure; a frustum is arranged on the plane of the boss; and when the synchronous belt pulley is matched with the rotating shaft, the frustum is totally inserted into a hollow structure of the rotating shaft and the plane of the boss is tightly attached to the rotating shaft. The frustum takes an assembly positioning effect in the assembling process, so that the rotating shaft and the synchronous belt pulley can be in close fit more accurately, the problem that the rotating shaft and the synchronous belt pulley are eccentrical mutually in the operating process is avoided and the rotating process of the PTZ camera in use is more smooth and stable.

Description

technical field [0001] The present invention relates to the technical field of video cameras, specifically, a synchronous belt pulley is fixed at one end of the rotating shaft, and the motor drives the synchronous belt pulley through the belt to rotate the rotating shaft and avoid the eccentricity of the rotating shaft during rotation. The transmission structure of the camera. Background technique [0002] The PTZ is a camera installation platform composed of two AC motors, which can drive the camera to move horizontally and vertically. There are two motors inside the gimbal, which are responsible for the up and down and left and right rotations of the gimbal respectively. The difference in working voltage also determines the overall working voltage of the gimbal, generally there are AC 24V, AC 220V and DC 24V. When receiving the up and down action voltage, the vertical motor rotates and drives the vertical transmission wheel to rotate through the reduction box; when recei...

AI Technical Summary

Problems solved by technology

[0007] In the structure of the prior art, the motor shaft and the rotating shaft are generally connected by a belt, and the motor directly drives the rotating shaft to rotate through the belt. The force-bearing structure of the rotating shaft is relatively long, and eccentricity easily occurs during installation and rotation. phenomenon, and the position of the rotating shaft relative to the bearing during rotation cannot be accurately defined, and it is easy to cause the rotating shaft to shift during the operation of the gimbal

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