Self-expanding clamp coupling

Abstract

The invention relates to a self-expanding clamp coupling for motor coupling. In order to solve the technical problem that the conventional rigid mandrel-structured coupling is poor in adaptability and cannot mount a motor without a key groove on the extended shaft end due to the fixed mandrel size, the self-expanding clamp coupling comprises a tapered cylindrical base, one end of the base is provided with a flange, the circumference of the flange is provided with light holes, four expanding plates are mounted in the base, the four identical expanding plates are separated from one another and combined to form a tapered cylinder, the excircle taper of the four combined expanding plates is equal to the taper of the base, the base is connected with one of the expanding plates through a flat key, the inner circle of one of the rest of the three expanding plates is provided with a key groove, the rear ends of the expanding plates are extended out of the base and provided with screw threads, and a binding nut is screwed on the screw threads. The coupling is easy to fabricate, flexible to operate and convenient to use, the cost is low, the appearance is attractive, and the coupling is practical and highly efficient.

Description

technical field

[0001] The invention relates to a self-expanding clamp coupling suitable for motor connection. Background technique

[0002] The coupling is a device connected with the motor shaft end. The traditional coupling is a rigid mandrel structure, which has great limitations in practical applications: since the size of the rigid mandrel is fixed, its size Poor adaptability, it requires high dimensional accuracy of the motor shaft extension end, otherwise the radial fit gap between the rigid mandrel and different shaft extension diameters will be large and small, which will inevitably bring difficulties to the installation and disassembly of the coupling , Forcible disassembly causes knocking on the motor shaft extension from time to time. At the same time, when the coupling is often disassembled and assembled, long-term use will inevitably cause serious wear on the inner diameter of the rigid mandrel of the coupling, and the motor shaft extension will move in the c...

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