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Permanent magnet safe brake with high friction coefficient

A technology of power-off brake and high friction coefficient, applied in the direction of brake type, axial brake, brake components, etc., can solve the problems of short service life and high noise of the brake, and achieve reliable operation, noise reduction, and easy implementation. Effect

Inactive Publication Date: 2010-12-01
WUXI HUALING MACHINERY SWITCHGEAR
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] At present, the permanent magnet de-energized brake has been widely used in various electric drive devices. The friction force of the friction plate brakes the running friction plate assembly; when the coil is energized, the coil generates a magnetic field to offset the magnetic field generated by the permanent magnet, and the spring plate on the friction plate assembly bounces the friction wheel, and the friction plate assembly can Free rotation, when the traditional permanent magnet power-off brake is braked by the friction plate, the friction plate will collide with the shell with a large force, which has the disadvantages of high noise and short service life of the brake

Method used

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  • Permanent magnet safe brake with high friction coefficient

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Embodiment Construction

[0014] Please refer to figure 1 as shown, figure 1 It is a schematic structural diagram of a permanent magnet power-off brake with a high friction coefficient of the present invention. In this embodiment, a permanent magnet power-off brake includes a base 1, and the base 1 includes a permanent magnet steel mounting part 2 and The electrified excitation magnetic coil installation part 3, the electrified excitation magnetic coil installation part 3 is a cylindrical structure, one end of which extends to the periphery a permanent magnet steel installation part 2, and the permanent magnet steel installation part 2 is provided with a magnetic steel skeleton 4. The magnetic steel skeleton 4 is provided with a plurality of magnetic steel installation holes (not shown in the figure), and the magnetic steel installation holes are circular in structure, and a circular permanent magnetic steel 5 is installed in it, and the charged The exciting magnetic coil installation part 3 is covere...

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Abstract

The invention discloses a permanent magnet safe brake with high friction coefficient. The brake comprises a base, wherein the base is provided with a magnetic steel framework used for installing permanent magnet steel; the permanent magnet steel has a circular structure; an electrified excitation winding is sleeved on the base; the outsides of the permanent magnet steel and the electrified excitation winding are separately provided with a shell and a friction plate corresponding to the shell; a spring piece is arranged on each friction plate; a plurality of auxiliary balk rings with high friction coefficient are embedded on the contact surface of each shell and the corresponding friction plate; the auxiliary balk rings and the friction surface of the shell are on the same plane; and a plurality of auxiliary balk rings are embedded on the contact surface of the shell of the permanent magnet safe brake with high friction coefficient and the friction plates. The invention has simple structure and is easy to realize; the friction coefficient of the brake is increased, the noise generated in the contact braking process is reduced, the service life of the brake is prolonged, and the brake torque is increased so that the brake can operate more reliably.

Description

technical field [0001] The invention relates to a brake, in particular to a permanent magnet electric-loss brake with high friction coefficient. Background technique [0002] At present, the permanent magnet de-energized brake has been widely used in various electric drive devices. The friction force of the friction plate brakes the running friction plate assembly; when the coil is energized, the coil generates a magnetic field to offset the magnetic field generated by the permanent magnet, and the spring plate on the friction plate assembly bounces the friction wheel, and the friction plate assembly can Free rotation, when the traditional permanent magnet power-off brake is braked by the friction plate, the friction plate will collide with the shell with great force, which has the disadvantages of high noise and short service life of the brake. Contents of the invention [0003] The purpose of the present invention is to provide a permanent magnet power loss brake with h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D55/02F16D65/27F16D65/22
Inventor 范向军
Owner WUXI HUALING MACHINERY SWITCHGEAR
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