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Fixed device for platform-worm screw

A technology of fixing device and fastening device, which is applied in the field of pan/tilt, can solve the problems that the axial clearance cannot be adjusted, affects the positioning accuracy of the pan/tilt, and the volume of the mounting frame increases, so as to facilitate later maintenance, fast and convenient disassembly and assembly, and save energy. The effect of equipment cost

Inactive Publication Date: 2010-05-19
TIANJIN YAAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Fixed device for platform-worm screw
  • Fixed device for platform-worm screw
  • Fixed device for platform-worm screw

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 and image 3 , the pan / tilt worm fixing device is composed of a worm 5 and a mounting frame 2, the worm adjusting shaft 11 and the worm power shaft 8 at both ends of the worm are installed in the shaft holes of the mounting frame and worms are respectively installed in the shaft holes Adjusting shaft bushing 3 and worm power shaft bushing 7, the bushings are all installed in the through hole of the mounting frame, and the annular groove for storing lubricant can be processed in the bushing. The innovation points of the present invention are: an open groove is made on the mounting bracket at the installation worm position (see figure 1 , figure 2 , image 3 ), the open groove can be a rectangular parallelepiped groove or a cylindrical groove. A thrust bearing 4 is installed between the worm adjustment shaft at both ends of the worm, the pillow block made by the worm power shaft, and the open groove end faces on both sides. The thrust bearing is a ...

Embodiment 2

[0027] Such as figure 2 and 5 As shown, in order to make the shaft sleeve and the mounting frame more tightly combined and improve the structural strength of the mounting frame, a connecting plate 10 is installed through screws 9 outside the upper and lower edges of the slot. The bolts are basically the same.

[0028] Other structures of the pan / tilt worm fixing device in this embodiment are the same as those in Embodiment 1.

[0029] When in use, when the worm needs to be compressed, tighten the locking nut that is connected to the mounting bracket, the locking nut presses the shaft sleeve that is in contact with it, and the other end of the shaft sleeve presses the plane thrust ball bearing, Therefore, the worm produces axial displacement under the action of the pressure to adjust its axial gap; when loosening the worm, it is only necessary to loosen the locking nut.

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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 shaftin 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 andconvenient 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 easyto produce, so production factories do not need to add new production equipment, saving the cost of the equipment.

Description

technical field [0001] The invention relates to a pan-tilt in a video monitoring device, in particular to a pan-tilt worm fixing device. Background technique [0002] The worm is used to transmit the motion and power between two interlaced axes in space, and 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 pan / tilt is as attached to the manual. Figure 7 As shown, a worm with centripetal bearings at both ends is installed in the cylindrical through hole of the mounting frame. A certain gap is kept between the glands, and the bearings at both ends of the worm are crimped together by the two glands. Although the concentricity of the opening of the gland of the fixing device, the cylindrical through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16M11/00
Inventor 苏东东
Owner TIANJIN YAAN TECH CO LTD