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Optical brake lining monitoring

A technology for brake linings, optical monitoring, applied in the field of worn systems, which can solve problems such as the susceptibility of moving parts to block

Inactive Publication Date: 2019-12-27
INVENTIO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, movable parts are prone to obstruction and require regular inspection or maintenance

Method used

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  • Optical brake lining monitoring
  • Optical brake lining monitoring
  • Optical brake lining monitoring

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A schematic diagram of one embodiment of a passenger conveyor system 1 is shown. The passenger conveyor system 1 is embodied as an elevator or elevator system 1 with a drive and brake system 2 and a brake controller 3 . It is contemplated that in a correspondingly modified embodiment, the passenger conveying system 1 can also be embodied as an escalator or a moving walkway. A drive and brake system 2 and a brake controller 3 serve a passenger conveyor system 1 embodied as an elevator, escalator or moving walkway. However, it is conceivable that the brake monitoring system described here is also suitable for braking systems of other applications.

[0025] Referring first to the braking function of the passenger conveyor system 1, and hereinafter to describe several other components and functions thereof, the drive and braking system 2 has a braking system 15, hereinafter referred to as the main brake 15, which has a braking unit 16, 17. Brake units 16 , 17 e...

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Abstract

A brake system for a passenger transportation system includes a brake lining and a brake surface, wherein a gap exists between the brake lining and the brake surface when the brake system is in an open position. The brake system also includes an optical monitoring system and a processor. The optical monitoring system has a light source arranged to emit light towards at least one of the gap and the brake lining, and a light detector arranged in a light path of the light emitted by the light source. The light detector generates an electrical signal as a function of impinging light. The processor is coupled to the optical monitoring system to receive the electrical signal and to generate a predetermined indication if the signal indicates a value that is equal to or greater than a predetermined threshold value.

Description

technical field [0001] The disclosure of various embodiments generally relates to braking systems in which friction material is urged against a contact surface during braking. More specifically, various embodiments described herein relate to systems and methods for monitoring wear of friction materials, particularly in braking systems of passenger conveyance systems, such as elevators, escalators, or moving walkways. Background technique [0002] Elevator braking systems, eg comprising drum brakes or disc brakes, are typically provided to stop the rotation of a motor shaft in an elevator installation, eg a traction elevator. In either case, at least one compression spring is typically used to bias the brake into the closed or braked position, and an actuator, usually electromagnetically, hydraulically or pneumatically driven, is provided to overcome the spring bias and move the brake to the Open or release position. In the open position, the motor is allowed to start rotat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
CPCB66B5/0025B66B5/0031B66B1/32B66B1/3492B66B5/06B66B2201/00F16D2121/22
Inventor 旺桑·罗比贝洛戴夫·克拉夫特
Owner INVENTIO AG
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