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Electromagnetic brake with buffer for noise reduction

An electromagnetic brake and buffer technology, applied in the direction of brake actuator, gear transmission mechanism, mechanical equipment, etc., can solve the problems of large starting clearance, small buffer force, long buffer stroke, etc., to increase the rigidity of the system and increase the buffer. force, the effect of reducing motion noise

Inactive Publication Date: 2012-07-25
天津永恒泰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot be used in the field of electromagnetic brakes due to the small buffer force, long buffer stroke, and large start-up gap.

Method used

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  • Electromagnetic brake with buffer for noise reduction
  • Electromagnetic brake with buffer for noise reduction
  • Electromagnetic brake with buffer for noise reduction

Examples

Experimental program
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Embodiment Construction

[0015] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0016] see Figure 1 ~ Figure 3 , an electromagnetic brake with a buffer for noise reduction, the brake is fixed on the installation surface 3, including a stator yoke 1 fixed on the installation surface 3, a coil is embedded in the stator yoke 1, and the stator yoke 1 is provided with The armature 2 that is movably connected with it has a friction disc 5 installed on the armature 2, and the friction disc 5 is adjacent to the installation surface 3; a plurality of springs 6 are clamped between the stator yoke 1 and the armature 2; Buffer 4; the buffer 4 is a piston structure, the piston 4-1 is installed in the sealed cylinder 4-5 filled with elastic cement medium, the cylinder 4-5 is fixed on the armature 2, and the piston 4-1 is equipped wit...

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PUM

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Abstract

The invention discloses an electromagnetic brake with a buffer for noise reduction, which is fixed on an installation surface and comprises a stator magnet yoke fixed on the installation surface. A coil is embedded in the stator magnet yoke, an armature connected with the stator magnet yoke in movable mode is arranged on the stator magnet yoke, a frictional disk is installed on the armature and is adjacent to the installation surface, a plurality of springs are clamped between the stator magnet yoke and the armature, a buffer of a piston type structure is arranged on the armature, a piston is installed in a sealed tube body full of elastic paste media, the tube body is fixed on the armature, a throttle hole is arranged on the piston which is fixedly connected in the middle of a piston rod, two ends of the piston rod extend out of the tube body and are clamped between the stator magnet yoke and the installation surface in pressing mode. The electromagnetic brake can provide large buffering power and cannot damage braking force.

Description

technical field [0001] The invention relates to an electromagnetic brake, in particular to an electromagnetic brake with a buffer for noise reduction. Background technique [0002] Disc electromagnetic safety brakes are widely used in industrial and civil fields, and have become the most commonly used type of brakes. However, when performing two actions of braking or releasing, the impact noise of the armature is very large, usually ≥ 78dB, which is for some Special application environments, such as elevators, medical equipment, and precision test equipment cannot be tolerated, so low-noise brakes have emerged as the times require. At present, there are usually two methods for noise reduction of electromagnetic brakes in the world: one is to add shock-absorbing pads to reduce impact and reduce noise. This solution relies on the deformation of the elastic body, and this deformation will definitely cause Hooke's elastic force to react on the armature, thus reducing the positi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/14F16D121/20
Inventor 刘德良刘世杰陈立铭
Owner 天津永恒泰科技有限公司
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