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Hybrid Excited Brake with Tachometry

A hybrid excitation and brake technology, which is applied to electric brakes/clutches, electric components, devices using electric/magnetic methods, etc., can solve the problems of reduced brake service life, brake failure, and increased brake copper consumption, etc., to achieve The effect of convenient control, high reliability and simple structure

Active Publication Date: 2019-01-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of friction discs will inevitably reduce the service life of the brake, resulting in brake failure and affecting the safety of surrounding equipment
At the same time, for a brake with an electric excitation structure, in order to obtain a larger braking torque, the electric load of the electromagnetic brake must be increased, thereby increasing the copper consumption of the brake and causing a waste of energy.
In addition, the existing brake does not have a speed measurement function in a non-braking state, and cannot measure the speed of the motor

Method used

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  • Hybrid Excited Brake with Tachometry
  • Hybrid Excited Brake with Tachometry
  • Hybrid Excited Brake with Tachometry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] combined with figure 1 , 3 Explain, a hybrid excitation brake with speed measuring function, its composition includes: permanent magnet steel 7, annular excitation coil 1, two stators 2, rotor 3, motor output shaft 4, on the motor output shaft 4 A rotor 3 coaxial with it is provided, and two pieces of permanent magnetic steel 7 are connected to the outer surface of the rotor 3, the rotor 3 is arranged inside the two stators 2, and the rotor 3 is coaxially arranged with the two stators 2, The two stators 2 correspond to the two pieces of permanent magnetic steel 7 one by one, and the annular excitation coil 1 wound on the annular coil frame is arranged between the two stators 2, and the winding of the annular excitation coil 1 The control direction is perpendicular to the axial direction of the motor output shaft 4, the two stators 2 and the annular field coil 1 are all arranged in the motor casing 5, and the motor casing 5 is radially A working air gap 8 is provided, ...

Embodiment 2

[0027] combined with figure 2 To illustrate, in the hybrid excitation brake with the speed measuring function described in Embodiment 1, a plurality of tooth slots are evenly distributed on the inner circumferential surface of the stator 2 and the outer circumferential surface of the rotor 3 respectively, and the inner circumferential surface of the stator 2 The portion between every two adjacent tooth slots on the circumferential surface is a stator tooth, and the portion between every adjacent two tooth slots on the outer circumferential surface of the rotor 3 is a rotor tooth. Each tooth of the stator 2 The widths of the slots are equal, and the widths of the respective tooth slots of the rotor 3 are also equal, and the multiple tooth slots on the inner peripheral surface of the stator 2 correspond to the multiple tooth slots on the outer peripheral surface of the rotor 3 .

Embodiment 3

[0029] combined with figure 2 To illustrate, in the hybrid excitation brake with speed measuring function described in Embodiment 1, the two pieces of permanent magnetic steel 7 are arranged on a pair of teeth on the same axis of the rotor 3 .

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Abstract

A hybrid excitation type brake with a velocity measurement function is disclosed. The invention relates to the hybrid excitation type brake with the velocity measurement function. Because a friction disk is used, the service life of the brake is shortened so that braking is failed and usage safety of surrounding equipment is influenced. A motor output shaft is provided with a rotor which shares an axle with the motor output shaft. An outer side surface of the rotor is connected to two permanent magnet steel. The rotor is arranged in an internal portion of two stators. And the rotor and the two stators are arranged coaxially. The two stators and the two permanent magnet steel are in a one-to-one correspondence relationship. An annular exciting coil which is winded on an annular coil rack is arranged between the two stators. A winding direction of the annular exciting coil is vertical to an axial direction of the motor output shaft. The two stators and the annular exciting coil are arranged in a motor chassis. The motor chassis is provided with a working air gap along a radial direction. One side of the motor chassis is removably connected to a rear cover chassis. The invention discloses the hybrid excitation type brake.

Description

technical field [0001] The invention relates to a hybrid excitation brake with speed measuring function. Background technique [0002] In today's industrial automation systems, brakes have been used in every corner of the industry, such as attitude maintenance of aerospace robotic arms, automobile tire brakes, elevator brakes, etc.; most of the commonly used brakes today are electric excitation structures, and their working principles are mostly used The mechanical spring compresses the armature, and the braking torque is generated through the action of the armature and the friction disc. The use of friction discs will inevitably reduce the service life of the brake, thereby causing brake failure and affecting the use safety of surrounding equipment. At the same time, for a brake with an electric excitation structure, in order to obtain a larger braking torque, the electric load of the electromagnetic brake must be increased, thereby increasing the copper consumption of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K49/00G01P3/44
Inventor 邹继斌禹国栋徐永向李勇尚静胡建辉刘承军赵猛江善林赵博王骞
Owner HARBIN INST OF TECH