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Brake monitoring

A technology of brakes and electromagnetic brakes, applied in the direction of brakes, brake types, brake components, etc., can solve problems such as different brake sizes and/or power supply voltages, and achieve maintenance cost savings and long-term effects

Active Publication Date: 2017-12-19
KONECRANES GLOBAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often, brakes of the same manufacturer may differ from each other in terms of size and / or supply voltage

Method used

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  • Brake monitoring
  • Brake monitoring
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Examples

Experimental program
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Embodiment Construction

[0033] The monitoring of the brakes is described below. By monitoring the condition of the brakes it is possible to obtain information about the condition of the brakes. In this way, maintenance work on the brakes can be scheduled before the brakes fail and fail.

[0034] The invention is particularly suitable for monitoring the condition of electromagnetic disc brakes. According to the invention, it is possible to implement a fixedly installed monitoring method and device, and based on said method and device it is also possible, for example, to construct a portable monitoring device for maintenance personnel. The invention can indicate brake wear and / or failure.

[0035] It is possible to perform predictive maintenance on the brakes when it is detected that the condition of the brakes has deteriorated. Predictive maintenance is a maintenance method based on the actual condition of the equipment. The condition of a device or its components is measured by variables that cha...

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PUM

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Abstract

A brake (402) is monitored, the brake (402) comprising: first (202, 204) and second (206, 204) braking surfaces; The electrical current of the component is arranged to generate a magnetic field, the magnetic field is arranged to move the braking surfaces (202, 204, 206) from a closed state, in which the braking surfaces are connected to each other, to an open state, in which the open state The braking surfaces (202, 204, 206) are separated from each other. Determine the current of the brake when the braking surface (202, 204, 206) starts to move from the closed state to the open state, determine the maximum current of the magnetized part (201) of the brake (402) in the open state, and the brake (402) The condition of is determined as the current ratio of the measured current to the maximum current when the braking surface (202, 204, 206) begins to move.

Description

technical field [0001] The present invention relates to the monitoring of brakes, and in particular to the monitoring of electromagnetic brakes. Background technique [0002] Brakes used in lifting gear are critical to the operation of the lifting gear both in terms of economy and safety. Failure of the brakes could cause the load to fall, which could damage other parts of the lifting gear and risk injury to those working nearby. [0003] The brake used in the lifting gear is a conventional disc brake in which a disc-shaped friction material that rotates with the motor shaft is pressed between the anchor plate and the friction plate and deceleration occurs. [0004] Frictional surfaces wear during deceleration. If the friction surface is exhausted, the braking effect of the brake drops significantly and the brake can no longer function as designed. Therefore, the brakes fail. [0005] The condition of the brakes is usually monitored manually by measuring the thickness of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P3/04F16D66/02G01M13/00
CPCH02P15/00G01L5/28B60T13/743B60T17/221F16D2065/386F16D2129/08F16D66/021G01M13/00H02P3/04F16D66/00F16D2066/006G01R19/10
Inventor A·扬图宁
Owner KONECRANES GLOBAL