Fixed device for platform-worm screw

Abstract

The invention relates to a tripod head worm fixing device, which is mainly characterized in that: the position of an installation frame for installing the worm is provided with an open groove; two thrust bearings are respectively arranged between a worm regulating shaft and a worm power shaft on the two ends of the worm and between the open groove end faces of the two sides of the worm; the installation frame on the side of the worm regulating shaft is provided with a lock nut which is coaxially engaged with the worm and the lock nut is arranged at the shaft sleeve of the worm regulating shaft in a propping up manner; the installation frame on the side of the worm power shaft is provided with an open slot towards the direction of the worm power shaft and the installation frame at the position of the open slot is provided with a fastening device which can press the shaft sleeve of the worm power shaft. The tripod head worm fixing device is simple in structure, small in volume, fast and convenient for dismounting, convenient for later maintenance and widely applied to tripod heads with different weight loadings, and besides the parts of the invention are standard parts which are easy to produce, so production factories do not need to add new production equipment, saving the cost of the equipment.

Description

PTZ worm fixing device technical field The invention relates to a pan-tilt in a video monitoring device, in particular to a pan-tilt worm fixing device. Background technique The worm is used to transmit motion and power between two interlaced shafts in space. It is widely used in the transmission device of the pan / tilt due to its advantages of large transmission ratio, compact structure, stable transmission and self-locking function. The worm is installed inside the head through the fixing device, and is driven by meshing with the worm gear. The fixing device of the existing worm in the cloud platform is as shown in accompanying drawing 7 of the description, and a worm with radial bearings is installed at its two ends in the cylindrical through hole of the mounting frame, and one end of the worm is fixed on the gland at one end of the mounting frame There is a certain gap between the other end and the other gland of the mounting frame, and the bearings at both ends of the...

AI Technical Summary

Problems solved by technology

Although the concentricity of the opening of the gland of the fixing device, the cylindrical through hole of the mounting frame and the worm is easy to be guaranteed, the gland is directly crimped on the bearing, so that the axial clearance cannot be adjusted, which will not only affect the working of the pan / tilt. The positioning accuracy of the worm and the worm gear is not suitable for the gap between the meshing surface, which will cause noise, heat, and wear in the transmission. At the same time, the upper part of the mounting frame is also equipped with a worm gear that meshes with the worm, resulting in an increase in the volume of the mounting frame and the loss of the pan / tilt. become larger

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