A dual-chamber torque-limiting hydraulic coupling

Abstract

Disclosed is a double-chamber torque-limiting type hydraulic coupling. Using liquid as a transmission medium, the double-chamber torque-limiting type hydraulic coupling mainly comprises an input component, an output component, a left impeller, a right impeller, a left turbine and a right turbine. The input component comprises an input shaft sleeve connected with a prime motor, the left impeller and the right impeller which are oppositely disposed are fixedly sleeved on the input shaft sleeve 1, at least one impeller is fixed on the input shaft sleeve, an auxiliary chamber shell is fixedly connected between the left impeller and the right impeller, and a retaining plate is mounted on the outer side of each of the left and right impellers. The left turbine and the right turbine are disposed on the outer sides of the left impeller and the right impeller respectively, and supported on the input shaft sleeve through respective bearings; a shaft seal component located on the input shaft sleeve is arranged on the outer side of each of the left and right impellers, and a shell is further fixedly connected between the left turbine and the right turbine; the output component composed of a transmission plate, a spring disc and a coupling half is connected on the left turbine or the right turbine. The double-chamber torque-limiting type hydraulic coupling has the advantages of simple structure, high power transmission capacity, capability of obviously improving torque-limiting performance of the coupling, suitability for occasions requiring torque limiting in high-power equipment, and the like.

Description

technical field [0001] The invention relates to a moment-limiting hydraulic coupling, in particular to a double-chamber moment-limiting hydraulic coupling. Background technique [0002] The torque-limiting coupling, also known as the safety coupling, is mainly used in high-power equipment such as coal mining, transportation, crushing and lifting. When these devices are in operation, not only the load changes greatly, but sometimes they are suddenly stuck or braked. At this time, a large overload will be generated, which will damage some weak parts of the prime mover and working machine. The torque-limiting coupling can be used for overload protection. In addition, most of the prime movers of these devices are asynchronous motors, and the loads have a large inertia, and they are often started with load or even heavy load. The use of torque-limiting couplings can greatly improve the start-up performance of motors and working machines and save electric energy. [0003] At pre...

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Problems solved by technology

However, for the dual-cavity torque-limiting fluid coupling with both front and rear auxiliary chambers, the axial size will be large due to the addition of the rear auxiliary chamber, and the structure is complicated, so far no patent has been published

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