Motor with front-arranged brake

Abstract

The invention relates to a motor with a front-arranged brake. The motor comprises a motor body, a support, the brake and a belt wheel. The support is fixedly connected to the front end of the motor body, a bearing cap is installed at the front end of the support, and a rear end cover is installed at the rear end of the motor body. The motor body comprises a case, a stator, a rotor and a main shaft. The main shaft penetrates through the motor body and the support. A bearing is arranged between the outer wall of the main shaft and the inner wall of the support, and the middle, on the support section, of the main shaft is connected with a brake wheel through a flat key. The support is of a cuboid shape, and a connection piece with a plurality of bolt holes is arranged on the bottom of the support. The brake is fixedly installed on one side wall of the support. According to the motor, the brake is arranged on the support at the front end, the support is of the cuboid shape, the structure is simple, processing is easy, casting or welding can meet the use requirement, and the cost is low; due to the support of the cuboid shape, the brake can be installed on the four side walls according to requirements, installation is flexible and convenient, and the cost and the space can be saved.

Description

technical field [0001] The invention relates to a driving device of a tower pumping unit, in particular to an electric motor with a front brake. Background technique [0002] At present, the working principle of the new tower pumping unit is realized by the up and down alternate movement of the sucker rod and the counterweight, and this process is realized by the positive and negative rotation of the motor. The moment of the positive and negative rotation needs to keep the motor shaft from rotating, otherwise The sucker rod or the counterweight will drop suddenly. Chinese utility model patent CN201608610 discloses a permanent magnet synchronous motor for pumping units. This patent uses the structure of the elevator traction machine to effectively solve the above problems, but its structure is the Y2 permanent magnet synchronous motor of the general national standard. The end cap is replaced with a brake bracket for mounting the brake, which has a large limitation. [0003]...

AI Technical Summary

Problems solved by technology

[0003] The force on the pulley is equivalent to the cantilever beam structure for the motor. The bolt interface between the motor and other equipment in this patent is far away from the pulley. The axis of the large pulley forms an angle), resulting in uneven force along the axis of the belt and reducing the service life

[0004] At the same time, the motor brake of this patent is placed on the brake bracket (integrated with the rear end cover) on the rear side of the motor. Due to the complex structure of the bracket and the thin-walled parts, it is difficult to process and high in cost; and each motor of this patent is fixed. Install 2 brakes. If the braking force is not enough, you can only increase the size of the machine base, which will increase costs and waste space.

If the braking force is small, install 2 brakes, and the waste is serious

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