Stable high-power plug-in centrally-mounted motor

Abstract

The invention provides a stable high-power plug-in centrally-mounted motor, which comprises a main shell, the main shell comprises a shaft sleeve inserted into a bicycle five-way assembly and an assembly shell fixed on the upper part of the shaft sleeve, and an electric module is assembled on the left side of the assembly shell; a penetrating through hole is machined in the middle of the assembling shell, an output shaft of the electric module extends out of the left side of the assembling shell to the right side of the assembling shell, a fixing frame is fixedly assembled on the right side of the assembling shell, two or more planet shafts evenly distributed relative to the circumferential direction of the output shaft are assembled between the assembling shell and the fixing frame, and planet wheels are assembled on the planet shafts. A sun gear in meshing transmission is assembled outside the planet gear, a transition module is in transmission connection with the sun gear, and the transition module is in transmission connection with the chain wheel. A planetary transmission structure is adopted in the motor, so that transmission is more stable, and the output power of the motor can be greatly improved under the same size.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a stable high-power plug-in mid-mounted motor. Background technique [0002] Electric bicycles are usually divided into hub motors and mid-mounted motors, and mid-mounted motors can be divided into plug-in mid-mounted motors and integrated mid-mounted motors. Plug-in mid-mounted motors usually use a two-stage transmission structure to connect the motor. The output shaft and the sprocket realize the deceleration function at the same time. Disclosed a kind of dual-purpose actuating device of electric bicycle as in the patent that authorized publication number is CN2541317Y, and discloses in the electric auxiliary transmission of a kind of bicycle in the patent that authorized publication number is CN2561697Y; All use this kind of structure. This motor structure can be directly inserted into the bottom bracket of a bicycle, which greatly facilitates people to directly ...

AI Technical Summary

Problems solved by technology

It greatly limits the assisting situation of electric bicycles with mid-mounted motors, so that when people use this motor as auxiliary power, the riding experience is poor. Motors with traditional structures usually have low power and cannot assist fast riding, nor can they provide sufficient assistance on slopes or mountain road conditions

[0005] In addition, the traditional plug-in central motor, when transmitting between the motor output shaft and the central axle of the bicycle, the transition transmission gear usually adopts a cantilever structure, which makes the overall transmission process not stable enough, which will also affect the service life of the motor.

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