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Permanent magnet eddy current linear braking system for elevator testing

A permanent magnet eddy current and braking system technology, applied in elevators, hoisting devices, transportation and packaging, etc., can solve problems such as unsuitable long-distance braking, complex structure, and braking force that cannot be changed in time, so as to prolong the service life , reduce wear and save braking distance

Inactive Publication Date: 2015-07-08
CHINA SPECIAL EQUIP INSPECTION & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the rotary eddy current brake is relatively complicated, which is not suitable for long-distance braking, and the braking force cannot be changed in time

Method used

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  • Permanent magnet eddy current linear braking system for elevator testing
  • Permanent magnet eddy current linear braking system for elevator testing
  • Permanent magnet eddy current linear braking system for elevator testing

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Embodiment Construction

[0047] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0048] The elevator safety test system of the present invention has an uplink tower and a downlink tower frame, wherein the downlink tower frame tests the elevator downlink safety device, the uplink tower frame tests the elevator uplink overspeed protection device and speed limiter, and tests various devices A measurement and control system is shared; the downward safety device includes a downward safety gear and a buffer device, and the upward overspeed protection device includes a traction machine, a rope clamp and an upward safety gear. The tests of each elevator safety device are now described separately.

[0049]The basic component of the descending test system of the present invention is a descending tower, please refer to figure 1 As shown, it is a schematic diagram of the main structure of the down...

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Abstract

The invention relates to a permanent magnet eddy current linear braking system for elevator testing. The permanent magnet eddy current linear braking system for elevator testing is applied to a safety tongs testing experiment in an elevator testing system and is used for braking a testing stand loaded with safety tongs when the safety tongs fail. The permanent magnet eddy current linear braking system for elevator testing comprises a magnetic steel group, a braking guide rail and a transverse movement mechanism. The magnetic steel group is arranged on opposite corners on two sides of the testing stand and generates a high-intensity magnetic field in the power-up state. Two ends of the braking guide rail are fixed on a beam of a testing tower through a guide rail installation support, one end of the braking guide rail extends into a gap between the N pole and the S pole, and the braking guide rail and the magnetic steel group have relative movement. The transverse movement mechanism is arranged on the beam of the testing tower, is aligned at the end of the braking guide rail and connected with the braking guide rail, and drives the braking guide rail to move transversely to change the contact area between the braking guide rail and the magnetic steel group. The permanent magnet eddy current linear braking system achieves permanent magnet braking of the testing stand and reduces mechanical friction in a conventional braking system.

Description

technical field [0001] The invention relates to a braking system, in particular to a permanent magnet eddy current linear braking system for elevator tests. Background technique [0002] At present, the permanent magnet eddy current braking system has two types: linear permanent magnet eddy current braking and rotary type, and the application range of the rotary permanent magnetic eddy current braking is wider. [0003] Such as Chinese patent, a radial array permanent magnet eddy current retarder, publication number; CN102497084, discloses a radial array permanent magnet eddy current retarder, which includes a left fixed plate, a right fixed plate, a transmission shaft, Rotor, servo motor, coupling, motor fixing frame, two-way screw shaft, two screw nuts with opposite rotation directions, three linear optical axes, two stators with the same structure; the rotor made of magnetically permeable material, through The key is installed on the transmission shaft. There are two sym...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/02B66D5/24
Inventor 沈勇肖原鄂立军陈朝阳叶超
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST
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