Novel flexible coupling of small engine dynamometer

Abstract

The invention provides a novel flexible coupling of a small engine dynamometer, which consists of a positioning plate, a coupling bracket, a dynamometer connecting disc, a protective plate, rollers, spring protective covers and springs. The dynamometer connecting disc and the protective plate are in threaded connection; six grooves are formed in the outer surface periphery of the coupling bracket; the bottom surfaces of the grooves are eccentric circular arc surfaces, and are formed to inner and outer rolling ways of the rollers with the inner surface of the dynamometer connecting disc; and the rollers are evenly distributed in the grooves of the coupling bracket, and are frequently pressed to one narrower ends of the inner and outer rolling ways by spiral springs coated with the spring protective covers so as to tighten the inner and outer rolling ways. Three inclined chutes are formed in a disc, near a flywheel, of the coupling bracket; the end surface of the positioning plate is butted against an engine flywheel boss; and the coupling bracket is in threaded connection with the flywheel by the inclined chutes and the positioning plate. The novel flexible coupling of the small engine dynamometer is compact in structure, can synchronously realize the buffer and vibration reduction effects, can be suitable for rack tests of engines with different model numbers, and is simple and feasible in operation.

Description

technical field [0001] The invention relates to a new type of flexible coupling of a small engine dynamometer, which directly connects different types of engine flywheels to the engine dynamometer on the test bench without the need for a flywheel connection device, can slow down vibration, has a compact structure, and is suitable for use in Different models of engine performance tests. Background technique [0002] In the engine bench test, it is often necessary to use a flexible coupling to connect the engine flywheel to the dynamometer. However, the flexible coupling currently used must be replaced with the same engine when performing different types of engine bench tests. The flywheel connection device corresponding to the model is cumbersome to disassemble and assemble, and although the entire flexible coupling structure is simple, it takes up a lot of space. Contents of the invention [0003] The invention is a new type of flexible coupling for a small engine dynamom...

AI Technical Summary

Problems solved by technology

[0002] In the engine bench test, it is often necessary to use a flexible coupling to connect the engine flywheel to the dynamometer. However, the flexible coupling currently used must be replaced with the same engine when performing different types of engine bench tests. The flywheel connection device corresponding to the model is cumbersome to disassemble and assemble, and although the structure of the entire flexible coupling is simple, it takes up a lot of space

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