Coupler for electric bus motor and manufacturing process thereof

Abstract

The invention discloses a coupler for an electric bus motor. The coupler comprises a body (1), a flange (2) and a step-shaped through hole. A shaft fastener containing cavity (3) is formed in one end of the through hole, a conical hole (4) with the inner diameter gradually decreasing in the direction from outside to inside is formed in the other end of the through hole, and two key grooves (5) formed in the axial direction are symmetrically formed in the surface of the conical hole (4). The invention further discloses manufacturing process. The coupler for the electric bus motor and the manufacturing process thereof have the advantages that the conical hole structure further improves the coaxiality of a connecting shaft and the coupler, balance performance is good, and the rotating stability of the connecting part is enhanced. A key groove structure further reinforces the coaxiality of the connecting shaft in the conical hole and a connecting shaft fixedly connected with the flange. In the manufacturing process, location operation is simple, and locating is stable and accurate, so that processing precision of a workpiece is ensured, quality is stable and reliable, the requirement for design precision and the requirement for interchangeability of motor general assembly are ensured, and manufacturing is safe and protects the environment without pollution.

Description

technical field [0001] The invention relates to the technical field of shaft couplings, in particular to a shaft coupling of an electric bus motor and a manufacturing process thereof. Background technique [0002] Couplings are widely used in mechanical, hydraulic and other transmission fields. They are mainly used for the connection between shafts. Generally speaking, due to reasons such as processing machine tools and manufacturing costs, the manufacturing size of the shaft should not be too long. Therefore, the transmission rotation In the process of the movement, sometimes at least 2 shafts are required, and the coupling is used for the connection of the shaft and the shaft, which has a good performance of transmitting rotational motion. At present, the connection between the shaft and the coupling mostly adopts the structure of keyway transmission, bolt or pin positioning, the fixing effect is poor, it is easy to slip in the axial direction, the coaxiality between the c...

AI Technical Summary

Problems solved by technology

At present, the connection between the shaft and the coupling mostly adopts the structure of keyway transmission, bolt or pin positioning, the fixing effect is poor, it is easy to slip in the axial direction, the coaxiality between the connecting shafts is low, the transmission is not stable, the noise is large, and the coupling is reduced. The service life of the shaft device cannot meet the transmission requirements

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