Integral multifunctional positioning transmission mechanism

Abstract

The invention relates to an integral type multifunctional locating transmission mechanism which comprises a support shell with an output shaft, a shaft worm and a hollow worm, wherein a level transmission mechanism and a vertical transmission mechanism are both arranged in the support shell, and a vertical transmission worm connected with the output shaft penetrates out of the outer support shell; and the shaft worm and the hollow worm are mutually plugged, the shaft worm is connected with the hollow worm through a power locking outside the hollow worm, the two ends of the vertical transmission worm and the support shell are respectively provided with a bearing, one side of each bearing is provide with an interval adjusting nut, and the interval adjusting nut is in thread connection with the support shell. The transmission mechanism provided by the invention has the advantages that the defect of the complex axial interval adjustment in the prior art is overcome, the level transmission part and the vertical transmission part are arranged in the support shell, thereby realizing the omnibearing 360 degrees accurate rotate locating; the structure is compact, the anti-upsetting moment is strong, the transmission ratio is large, the return difference is low, the transmission interval adjustment is convenient, and the service life is long.

Description

technical field [0001] The invention relates to an integral multifunctional positioning transmission mechanism. Background technique [0002] Traditional positioning transmission devices generally use gears, worm gears, ball screws and other types of transmission. The gears mainly adopt small backlash gears that need to be adjusted, or gears with variable tooth thickness. Due to the small single-stage transmission ratio, many stages of transmission are required to meet the high speed ratio. Moreover, the cost of this gear transmission type is too high to manufacture. It is not suitable for large-scale applications. ; At present, worm gears and worms mainly adopt ordinary worm gears and secondary enveloping worm gears. Most of ordinary worm gears use elastic elements to generate a certain pre-compression force between the worm gear and the meshing surface of the worm to eliminate the worm gear. The gap between them is equivalent to increasing the friction between the worm ge...

AI Technical Summary

Problems solved by technology

The gears mainly adopt small backlash gears that need to be adjusted, or gears with variable tooth thickness. Due to the small single-stage transmission ratio, many stages of transmission are required to meet the high speed ratio, and the cost of this type of gear transmission is too high to be suitable for large-scale applications. ; At present, worm gears and worms mainly adopt ordinary worm gears and secondary enveloping worm gears. Most of ordinary worm gears use elastic elements to generate a certain pre-compression force between the worm gear and the meshing surface of the worm to eliminate the worm gear. The gap between them is equivalent to increasing the friction between the worm gear and worm, which will intensify the wear between the two, and will make the efficiency of the worm gear and worm with low efficiency become lower. Secondary enveloping worm gears and other similar transmissions mostly adjust the gap between the worm gears and worms by adjusting the thickness of the gasket to make the axial displacement of the worm. The actual wear condition between them, how much thickness of the gasket needs to be adjusted for measurement, the measurement and disassembly process is very complicated and inconvenient, and the processing of the adjustment gasket is also required, especially most of the positioning transmission devices are used in bad weather and sparsely populated desert areas. The equipment is difficult to find, and the maintenance cost is very high; the clearance of the ball screw drive also needs to be adjusted, and the efficiency will decrease after tightening, and the wear will be accelerated, especially the drive cannot rotate more than 180° due to structural limitations

And the processing cost of the ball screw is also very high

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