Hook-type commutator

Abstract

The invention discloses a hook-type commutator, which relates to the technical field of motor accessorie. The hook-type commutator comprises an inner sleeve and a plurality of commutator segments, one side, close to the inner sleeve, of each commutator segment is fixedly connected with a clamping block, the peripheral wall of the inner sleeve is fixedly provided with a plurality of clamping grooves, and a separation groove is fixedly arranged between every two adjacent clamping grooves. A cleaning assembly is movably arranged in the separation groove, a through hole is fixedly formed between the separation groove and the clamping groove, a fixing ring is fixedly connected to the lower portion of the inner sleeve, the top of the fixing ring abuts against the bottom of the commutator segment, a clamping sleeve assembly is connected between the outer wall of the clamping block and the inner wall of the clamping groove in an embedded mode, the other end of the clamping sleeve assembly is inserted into the separation groove through the through hole and the other end of theclamping sleeve assembly is located between theseparation groove and the cleaning assembly. The commutator segments are installed stably, carbon powder can be processed in time, the commutator segments are prevented from being conducted by the carbon powder, and the stability of the motor is improved.

Description

technical field [0001] The invention relates to the technical field of motor accessories, in particular to a hook-type commutator. Background technique [0002] The commutator is an important component of the armature of DC motors and AC commutator motors. When the motor rotates, it plays the role of commutation. The commutator is a component used for current commutation on DC motors and AC series motors. In order to allow the motor to continue to rotate, it is commonly known as a commutator. The commutator products mainly include hook-type commutator, slot-type commutator and There are three types of end face commutators. The main part of the hook-type commutator is the hook-type commutator piece with a hook portion. There are multiple independent hook-type commutator pieces distributed along the circumference of the commutator. Each hook-type commutator The segment is combined with the commutator base through its fixing feet. [0003] Chinese Patent Publication No. CN21...

AI Technical Summary

Problems solved by technology

[0005] First: The commutator segments of the DC motor are respectively connected to the rotor winding coils. The commutator segments themselves are insulated from each other. When the motor is running, the carbon brushes rub against the commutator segments, which will generate some carbon powder, and some will be deposited on the commutator If there is too much deposition in the groove of the commutator, because the carbon powder conducts electricity, it will reduce the insulation between the commutator segments, or even conduct directly between the commutator segments, which will affect the performance of the motor. In severe cases, it will spark or even form a ring fire , seriously affecting the operation and performance of the motor;

[0006] Second: When the motor rotates, centrifugal force will be generated, causing the commutator to fly out of the inner sleeve, affecting the performance of the motor, and the commutator will fly out, requiring replacement of the commutator and high maintenance costs

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