CN205371467U - Cloud platform snail wheel clearance adjust structure - Google Patents

Abstract

The utility model provides a cloud platform snail wheel clearance adjust structure, includes: motor support, motor, worm wheel and worm, wherein the motor divide into horizontal motor and vertical motor, two motors parallel the syntropy setting on the motor support, difference coaxial coupling worm on the motor shaft of two motors, the activity sets up one and two above -mentioned worm direction vertically transmission shafts on the motor support, the both ends of transmission shaft set up the worm wheel respectively, two worm wheels cooperate with two above -mentioned worms respectively, constitute two single -stage worm and gear transmission mechanism, set up the spring on the transmission shaft between two worm wheels, the both ends of spring correspond fixedly with two worm wheels respectively. When horizontal motor and vertical motor operation, the worm wheel of transmission shaft both sides concurs the rotation, and the elasticity through the spring came two taut worm wheels this moment to compensate the backlash among the worm gear transmission, improved worm and gear transmission mechanism's transmission precision.

Description

Gap adjustment structure of the worm gear of the pan/tilt

technical field

The utility model relates to the technical field of video monitoring, in particular to a structure for adjusting the gap between a pan-tilt and a worm gear.

Background technique

The pan/tilt is a supporting device for installing and fixing the camera, and it is divided into two types: fixed and electric pan/tilt. The fixed pan/tilt is suitable for the situation where the monitoring range is not large. After installing the camera on the fixed pan/tilt, you can adjust the horizontal and pitch angles of the camera. After reaching the best working posture, you only need to lock the adjustment mechanism; the electric pan/tilt is suitable For scanning and monitoring a large area, it can expand the monitoring range of the camera. The positioning drive of the electric pan/tilt is realized by two motors, and the motor receives signals from the controller to run and position accurately.

In the prior art, in the transmission of the large pan/tilt, in order to ensure the stability and self-locking of the pan/tilt, a worm gear transmission mechanism is usually used, and the worm gear has a backlash during the transmission process, which will affect the transmission accuracy.

Contents of utility model

The technical problem to be solved by the utility model is to provide a structure for adjusting the clearance of the worm wheel of the pan-tilt.

The technical scheme that the utility model takes for solving the technical problem existing in the known technology is:

The worm wheel gap adjustment structure of the utility model includes: a motor bracket, a motor, a worm wheel and a worm; wherein the motor is divided into a horizontal motor and a vertical motor, and the two motors are arranged side by side on the motor bracket in the same direction, and the motor shafts of the two motors are respectively The worm is connected coaxially, and a transmission shaft perpendicular to the direction of the above two worms is movably set on the motor bracket. The two ends of the transmission shaft are respectively equipped with worm gears, and the two worm gears are respectively matched with the above two worms to form two single-stage worm gear transmissions. In the mechanism, a spring is arranged on the transmission shaft between the two worm wheels, and the two ends of the spring are correspondingly fixed to the two worm wheels respectively.

The advantages and positive effects that the utility model has are:

In the worm wheel gap adjustment structure of the pan/tilt of the utility model, a spring is arranged between the two worm wheels, and the two ends of the spring are respectively fixed to the worm wheels on both sides of the transmission shaft. When the horizontal motor and the vertical motor are running, the worm wheels on both sides of the transmission shaft are simultaneously When the rotation occurs, the two worm gears are tightened by the elastic force of the spring, thereby making up for the tooth gap in the worm gear transmission and improving the transmission accuracy of the worm gear and worm transmission mechanism.

Description of drawings

Fig. 1 is a schematic diagram of the gap adjustment structure of the pan-tilt worm wheel of the present invention.

detailed description

The technical solution of the utility model is described in detail below through the accompanying drawings and specific embodiments.

As shown in Figure 1, the pan/tilt worm gear gap adjustment structure of the present utility model comprises: motor support 1, motor, worm gear 3 and worm screw 4; On the motor support, the motor shafts of the two motors are respectively coaxially connected to the worms, and a transmission shaft 5 perpendicular to the direction of the above-mentioned two worms is movably arranged on the motor support, and worm gears are respectively arranged at both ends of the transmission shaft, and the two worm gears are connected to the above two worms respectively. The worms cooperate to form two single-stage worm gear transmission mechanisms, and a spring 6 is arranged on the transmission shaft between the two worm gears, and the two ends of the spring are correspondingly fixed with the two worm gears respectively.

When the horizontal motor and the vertical motor are running, the worm gears on both sides of the transmission shaft rotate at the same time. At this time, the two worm gears are tightened by the elastic force of the spring, so as to make up for the tooth gap in the worm gear transmission and improve the transmission accuracy of the worm gear transmission mechanism.

The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above with the preferred embodiment, however, it is not used to limit the utility model. Any skilled person familiar with this profession, without departing from the scope of the technical solutions of the present utility model, will of course use the disclosed technical content to make some changes or modifications to become equivalent embodiments with equivalent changes, but all without departing from the technical solutions of the present utility model The content of the scheme, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model all belong to the scope of the technical solution of the utility model.

Claims (1)

1. A cloud platform worm gear gap adjustment structure, comprising: motor bracket, motor, worm gear and worm; Wherein the motor is divided into a horizontal motor and a vertical motor, and the two motors are arranged side by side on the motor bracket in the same direction, and the motor shafts of the two motors are respectively The worm is connected coaxially, and a transmission shaft perpendicular to the direction of the above two worms is movably set on the motor bracket. The two ends of the transmission shaft are respectively equipped with worm gears, and the two worm gears are respectively matched with the above two worms to form two single-stage worm gear transmissions. The mechanism is characterized in that a spring is arranged on the transmission shaft between the two worm gears, and the two ends of the spring are respectively fixed corresponding to the two worm gears.