Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for monitoring damage to wire rope for elevator and device for monitoring damage to wire rope for elevator

A monitoring device and lift technology, applied in lifts, transportation and packaging, etc., can solve problems such as the inability to monitor the damage of steel cables with high precision

Inactive Publication Date: 2014-07-02
NATAC
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the method using the insulating coating, since the damage of the wire rope itself is not detected, there is a problem that the damage of the wire rope cannot be monitored with high precision.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for monitoring damage to wire rope for elevator and device for monitoring damage to wire rope for elevator
  • Method for monitoring damage to wire rope for elevator and device for monitoring damage to wire rope for elevator
  • Method for monitoring damage to wire rope for elevator and device for monitoring damage to wire rope for elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[0026] figure 1 It is a schematic configuration diagram of an elevator incorporating the cable damage monitoring device for elevators according to the present invention.

[0027] A lift passage 3 extending in the vertical direction is provided in the building 1 , and a liftable car 5 is disposed in the lift passage 3 . The car 5 is driven by an elevator wire (elevator wire) 7 that is wound around the outer circumference of a hoisting sheave 13 of a hoist 11 disposed in a machine room 9 formed at the uppermost part of the building 1. Inside. The lower end of the car side portion 15 extending downward from one side of the hoisting sheave 13 of the wire rope 7 is connected to the car 5 , and the balance side portion 17 of the wire rope 7 extending downward from the other side of the hoisting sheave 13 A balance counterweight 19 is installed at the lower e...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A device and a method for monitoring damage to a wire rope for an elevator effectively contribute to the improvement of the safety of the elevator. Vibration sensors (45, 46) having piezoelectric elements (43) are mounted to a safety bar (33) at an interval in the direction in which the safety bar (33) extends, and the safety bar (33) is disposed so as to extend in the direction in which wire ropes (7) are arranged side by side. Damage to a wire rope (7) is detected by detecting, using the vibration sensors (45, 46), an elastic wave generated by the contact between the safety bar (33) and a broken wire (41) of the wire rope (7).

Description

technical field [0001] The present invention relates to a method and an apparatus for monitoring the occurrence of breakage of an elevator wire rope used for raising and lowering a car of an elevator installed in a building. Background technique [0002] A car of an elevator installed in a building moves up and down while being suspended from a steel cable for the elevator. That is, one end of the elevator wire rope is attached to the elevator car, and the elevator car is moved up and down by raising or lowering the wire rope with a hoist. Thus, breakage of the elevator wire rope may cause a serious accident. [0003] Therefore, it is necessary to monitor the state of the wire rope so that when the wire rope for an elevator is damaged, the damage can be detected in advance, and safety measures such as replacing the wire rope before the wire rope breaks are carried out. For example, in Japan, regulations require that steel cables be replaced before failure occurs in 10% of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/02
CPCB66B7/1215
Inventor 榛叶明夫高桥和利高桥克
Owner NATAC