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Elevator monitoring method and elevator brake disc monitoring system

A monitoring system and brake disc technology, which is applied in the field of elevators and escalators, can solve problems such as incomplete sealing of brake discs, car slipping, and water film staining, and achieve the effects of easy real-time monitoring, simple calculation methods, and fast transmission speed

Active Publication Date: 2018-04-10
HITACHI ELEVATOR CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The brake disc of the elevator main engine is usually not completely sealed. When the main engine is placed in the shaft or machine room, if the environment is humid or there is water leakage, the brake disc of the main engine may be stained with water film, which will reduce the braking force of the elevator and cause the car to slide.
In addition, if the oil is splashed on the brake disc when adding lubricating oil to the main engine due to improper operation of the installation or maintenance personnel, the braking force of the elevator will also be reduced.
If the above two points occur, there will be a great security risk
However, there is no effective method to detect the oil and water pollution of the elevator brake disc at present, and there are hidden dangers in the operation of the elevator.

Method used

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  • Elevator monitoring method and elevator brake disc monitoring system
  • Elevator monitoring method and elevator brake disc monitoring system
  • Elevator monitoring method and elevator brake disc monitoring system

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Embodiment Construction

[0025] The present invention will be described in further detail below, but the embodiments of the present invention are not limited thereto.

[0026] like figure 1 As shown, the brake disc 100 of the elevator main engine is in the shape of a ring, the center of the brake disc 100 is a rotating shaft 110 , and the brake parts 120 are arranged on both sides of the brake disc 100 . The elevator brake disc monitoring system is installed on the main machine of the elevator to monitor the thickness of the contaminated liquid film 200 on the main machine brake disc 100 in real time. When the thickness value of the liquid film 200 does not exceed the preset warning value, the elevator brake disc monitoring system will not Interfering with the normal operation of the elevator; when the thickness of the liquid film 200 exceeds the preset warning value, the elevator brake disc monitoring system sends a stop signal or a standby signal to the elevator, and the elevator stops running at th...

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Abstract

The invention relates to an elevator monitoring method and an elevator brake disc monitoring system. The elevator monitoring method comprises the steps that a light beam generator emits test light beams, the test light beams irradiate the surface of a liquid membrane in an inclined mode, the light beams directly reflected by the surface of the liquid membrane are first light beams, the light beams penetrating out from the liquid membrane after penetrating through the liquid membrane and being reflected by the surface of a brake disc are second light beams, a detector receives the first light beams and the second light beams so as to obtain the position relation between the first light beams and the second light beams, the thickness of the liquid membrane can be obtained through calculation according to the position relation among the test light beams, the first light beams and the second light beams and the refraction characteristic of the liquid membrane, and the detector sends stopping signals or standby signals to an elevator when the thickness of the liquid membrane is greater than the preset pre-warning value. By monitoring the thickness of the liquid membrane on the surface of the elevator brake disc, the operation safety of the elevator can be guaranteed, and the test light beams do not damage the brake disc or influence normal operation of the brake disc.

Description

technical field [0001] The invention belongs to the field of elevators and escalators, and in particular relates to an elevator monitoring method and an elevator brake disc monitoring system. Background technique [0002] The brake disc of the elevator main engine is usually not completely sealed. When the main engine is placed in the shaft or machine room, if the environment is humid or there is water leakage, the brake disc of the main engine may be stained with water film, which will reduce the braking force of the elevator and cause the car to slide. . In addition, if the oil is splashed on the brake disc when the lubricating oil is added to the main engine due to improper operation by the installation or maintenance personnel, the braking force of the elevator will also be reduced. If the above two points occur, there will be a great potential safety hazard. However, there is no effective method to detect the pollution of the elevator brake disc by oil and water at pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00G01B11/06
Inventor 陈锦权张文俊杜永聪
Owner HITACHI ELEVATOR CHINA
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