A Rolling and Sliding Mixed Friction Stepless Speed ​​Adjuster

Abstract

The invention discloses a rolling and sliding mixed friction stepless speed regulating box, comprising a differential planetary gear reducer, a speed regulating wheel and at least one pair of disc brakes, wherein the speed regulating wheel is arranged on an exposed rotating shaft of the differential planetary gear reducer; the pair of disc brakes is symmetrically arranged on two side surfaces of the speed regulating wheel and is used for adjusting the rotating speed of the speed regulating wheel; each disc brake comprises a rolling disc brake and a sliding disc brake; the front end of a piston rod of each rolling disc brake is connected with a wear-resisting roller through a guide pressure plate; each wear-resisting roller is fixed on the corresponding guide pressure plate through a bearing block and a bearing; the wear-resisting rollers are symmetrically distributed on two sides of the speed regulating wheel and are close to the speed regulating wheel; the axes of the wear-resisting rollers are parallel to the radial direction of the speed regulating wheel; the front end of the piston rod of each sliding disc brake is connected with a brake block through the corresponding guide pressure plate; the brake blocks are symmetrically distributed on two sides of the speed regulating wheel in pairs, are close to the speed regulating wheels, and are vertical to the side surface of the speed regulating wheel. According to the speed regulating box, single brake block brake is replaced with the wear-resisting rollers and the brake blocks; a cantilever bracket type disc brake is replaced with a flange type fastening disc brake; the rolling and sliding mixed friction stepless speed regulating box has the advantages of small calorific value, good explosion-proof performance and simple structure.

Description

technical field [0001] The invention belongs to the technical field of stepless speed regulation of equipment, and in particular relates to a rolling and sliding mixed friction stepless speed regulation box. Background technique [0002] In the work of high-power mechanical equipment, it is necessary to consider the problem of stable stepless speed regulation caused by the change of working conditions. In-depth and extensive research on stepless speed regulation technology has been carried out in multidisciplinary fields such as machinery, electrical machinery and electronics, hydraulic power and hydraulic pressure at home and abroad, and various speed regulation devices or equipment have been developed. Currently on the market, there are old-fashioned hydraulic coupling governors, hydraulic governors, American CST governors, frequency conversion governors and the latest British permanent magnet governors. Although these variable speed transmissions have their own character...

AI Technical Summary

Problems solved by technology

Its advantages are safety, reliability, and energy saving; low failure rate and less maintenance; its disadvantages: permanent magnets are sensitive to temperature, poor thermal stability, demagnetization when the ambient temperature exceeds a certain value, and knocking will also affect magnetism. The magnetic field strength of the magnet will also decrease

Not only seriously restricts its speed regulation performance, but also brings certain safety hazards when used in mines

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