Miniature hysteresis brake suitable for brake system of intelligent rocking chair for children

Abstract

The invention relates to the technical field of intelligent rocking chair brakes for children, in particular to a miniature hysteresis brake suitable for an intelligent rocking chair brake system for children. The outer stator is fixedly arranged on the inner stator through a locking screw, and an annular gap is formed between the outer stator and the upper part of the inner stator; the rotor is fixedly installed on a brake shaft connected with a motor driving main shaft of the intelligent rocking chair for children in parallel, the rotor can rotate around the gap, the side wall of the inner stator is provided with an annular groove for a magnet exciting coil to wind, and the magnet exciting coil is wound on the inner stator. Non-contact torque transmission is adopted for braking, the maintenance cost and tedious procedures of a traditional friction plate are omitted, and the service life is long; smooth operation, good stability and large rotating speed range can be realized; based on the brake shaft, the torque transmitted by the brake shaft can be basically kept unchanged and is not affected by the sliding rotation speed of a motor of the intelligent rocking chair for children.

Description

technical field [0001] The invention relates to the technical field of children's smart rocking chair brakes, in particular to a miniature hysteresis brake suitable for a children's smart rocking chair braking system. Background technique [0002] The power source for the rotation and swing of the smart rocking chair needs to be driven by a micro-motor (or a stepping motor). The speed of an ordinary micro-motor is as high as 6000 (rpm) and a reducer is required. How to make the motor running at high speed overcome the influence of inertial force when the steering or stop signal is delivered, so that the motor action can be stopped instantaneously, and the electromagnetic clutch is usually used the most. The electromagnetic clutch is composed of a friction plate fixed on the base and a friction plate that rotates with the shaft, and the two friction plates of the electromagnetic clutch wear a lot, have short service life, increase maintenance costs, and have defects such as l...

AI Technical Summary

Problems solved by technology

The electromagnetic clutch is composed of a friction plate fixed on the base and a friction plate that rotates with the shaft, and the two friction plates of the electromagnetic clutch wear a lot, have short service life, increase maintenance costs, and have defects such as loud noise, especially for children’s products. , will bring invisible harm to users and affect physical and mental health

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