Motor and motor assembly

Abstract

The invention belongs to the technical field of motors, and particularly relates to a motor and a motor assembly. The assembly includes a commutator, a plurality of dovetail clamping grooves are uniformly formed on the circumferential outer wall of an insulating cylinder, and dovetail inclined blocks are fixed on the bottom end surfaces of the plurality of commutator segments, and are inserted into the dovetail clamping grooves in a sliding manner. The length of each dovetail inclined block is smaller than that of each dovetail clamping groove, and a limiting stop block is arranged at the endof each dovetail clamping groove. One end part of the insulating cylinder is provided with an insulating blocking cover, and the inner side surface of the insulating blocking cover is uniformly provided with a plurality of dovetail clamping blocks. The multiple dovetail clamping blocks are inserted into the dovetail clamping grooves in a sliding mode, and the side end faces of the dovetail clamping blocks make contact with the dovetail inclined blocks in an attached mode. A plurality of stepped threaded holes are uniformly formed in the insulating blocking cover and penetrate through the dovetail clamping blocks to be coaxial with the threaded groove holes, and hexagon socket screws are arranged in the stepped threaded holes. According to the present invention, the abraded and damaged commutator segments can be replaced independently, and the maintenance and replacement efficiency of the commutator segments of the commutator is improved.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a motor and a motor assembly. Background technique [0002] A DC motor is an electric motor that converts DC electrical energy into mechanical energy. It is widely used in electric drive because of its good speed regulation performance. [0003] The DC motor is composed of a stator and a rotor. The stator: the base, the main magnetic pole, the commutation pole, the brush device, etc.; the rotor: the armature core, the armature winding, the commutator assembly, the shaft and the fan. [0004] The function of the commutator is to cooperate with the brushes to convert the DC current input by the DC motor into the AC current in the armature winding. [0005] The Chinese patent discloses a motor rotor commutator. The patent application number is 2010105150524. It includes a rotating shaft. A cylindrical sleeve is installed outside the rotating shaft. Copper sheets are distributed alo...

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Problems solved by technology

[0006] It can be seen from the above-mentioned patents that most of the copper sheets on the existing commutator are fixed. When the copper sheets on the commutator are worn and damaged, the commutator is mostly disassembled from the rotating shaft, and then the commutator is removed. Repair the worn commutator segment or replace the entire commutator. If the commutator segment has single or partial wear, if the entire commutator is replaced, other commutator segments will be wasted. The phenomenon

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