Electromagnetic clutch

Abstract

The invention provides an electromagnetic clutch. The clutch comprises a rotating disc, an output gear, a belleville spring, an armature, a shell, a coil, a first clamping spring and a second clampingspring, the rotating disc comprises a hollow shaft and a disc body, the disc body is arranged on the hollow shaft in a sleeving manner and integrally formed, and a plurality of kidney-shaped heat dissipation holes are evenly formed in the upper end face of the disc body in the circumferential direction. The upper end face of the disc body is divided into a first friction ring and a second friction ring, an annular heat dissipation groove is formed in the upper end face of the matching position of the disc body and the hollow shaft in the circumferential direction, the upper end of the hollowshaft is matched with the output gear, and the belleville spring is fixedly arranged on the lower end face of the output gear and riveted to the armature. The lower end of the hollow shaft is loaded in the shell, a coil rack is arranged in the shell, the coil is wound in the coil rack, and an outgoing line of the coil penetrates out of the shell to be connected with a power supply. The problems that an existing small-torque electromagnetic clutch is larger in boundary dimension, higher in cost and relatively poor in heat dissipation performance are solved, and the electromagnetic clutch has the advantages of being small in size, low in cost and good in heat dissipation performance.

Description

technical field [0001] The invention belongs to the technical field of clutches, in particular to an electromagnetic clutch. Background technique [0002] Electromagnetic clutch is also called electromagnetic coupling. It uses the principle of electromagnetic induction and the friction between the inner and outer friction plates to make the two rotating parts in the mechanical transmission system, and the driven part can be combined or separated from the electromechanical connection when the active part does not stop rotating. A device is an electrical appliance that performs automatically. [0003] With the rise of domestic smart homes and the continuous development of new energy vehicles such as electric vehicles, the demand and application of various intelligent and miniaturized actuators are becoming more and more extensive. The electromagnetic clutch is transmitted from one side of the shaft to the side of the driven shaft. It is widely used in various transmission me...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose an electromagnetic clutch, which solves the problems of relatively large external dimensions, relatively high cost and poor heat dissipation of current small torque electromagnetic clutches, and has the advantages of miniaturization, low cost and good heat dissipation

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