Electromagnetic brake motor with spiral blade fan

Abstract

The invention discloses an electromagnetic brake motor with a spiral blade fan. The electromagnetic brake motor comprises an electromagnetic brake which is fixedly connected with the back end cover of a motor; the electromagnetic brake is provided with a brake disc in a sliding way; the rotating shaft of the motor is extended out of the back end cover of the motor; the shaft end of the rotating shaft of the motor is fixedly sleeved with a motor fan which is rotated integrally with the rotating shaft; the motor fan is provided with at least two spiral blades with spiral inclination angles; oneside surface of each spiral blade is connected with an annular disc which is coaxial with the rotating shaft; a brake surface is reserved on each annular disc; and the brake discs and the brake surfaces are in friction brake. The electromagnetic brake motor breaks through conventional fixed thoughts, utilizes the spiral blades of a fan as the brake surfaces, has very high brake performance and radiating and cooling effects, integrates double functions of braking and cooling, can ensure each part of the motor at a safe operating environmental temperature, and prolongs the service life of equipment.

Description

technical field [0001] The invention relates to the technical field of the motor industry, in particular to the motor technology using a motor fan to realize heat dissipation and braking, in particular to an electromagnetic braking motor with a spiral blade fan. Background technique [0002] In the derivative series of three-phase asynchronous motors, electromagnetic brake motors are widely used. However, the standard electromagnetic brake motors currently on the market have certain limitations in their structure. The brake is designed to act on the motor end cover, so its The braking effect and the braking speed are not ideal enough. For example, the Chinese invention patent, patent No. 01272633.8, discloses an electromagnetic braking device for a motor, which includes an electromagnet that is fixedly connected to the outside of the motor rear end cover through a connecting bolt, and there is a gap between the motor rear end cover and the electromagnet , There is an armatu...

AI Technical Summary

Problems solved by technology

It adopts a braking method in which the friction disc is fixedly connected to the motor shaft. The friction disc rotates together with the shaft, and its friction surface is a conical surface, which has a good braking effect, but it does not break through the single braking function of the friction disc. It cannot effectively solve the problem of the large amount of heat generated by the motor’s work and braking friction, which seriously affects the service life of the motor, friction disc, and electromagnetic components. If heat dissipation is required, an additional fan is required, which not only increases the manufacturing cost of the motor, but also improves Not only increases the production difficulty of the product, but also causes the volume of the motor to be huge and bloated

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