CN112173912B - Elevator brake wheel wear degree monitoring system - Google Patents
Elevator brake wheel wear degree monitoring system Download PDFInfo
- Publication number
- CN112173912B CN112173912B CN202011260332.5A CN202011260332A CN112173912B CN 112173912 B CN112173912 B CN 112173912B CN 202011260332 A CN202011260332 A CN 202011260332A CN 112173912 B CN112173912 B CN 112173912B
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- Prior art keywords
- elevator
- laser
- brake wheel
- wireless data
- steel wire
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000005299 abrasion Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
- B66B7/1238—Checking means specially adapted for ropes or cables by optical techniques
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/028—Apparatus for indicating wear using electrical detection or indication means with non-electrical sensors or signal transmission, e.g. magnetic, optical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/006—Arrangements for monitoring working conditions, e.g. wear, temperature without direct measurement of the quantity monitored, e.g. wear or temperature calculated form force and duration of braking
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanical Engineering (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The elevator brake wheel wear degree monitoring system comprises a laser transmitter, a laser receiver, an infrared camera, an acoustic signal acquisition sensor, a height positioning sensor, wireless data transmission equipment and a computer; detecting the transverse position variation of the elevator dragging steel wire between the elevator brake wheel and the elevator car and between the elevator dragging steel wire and the counterweight through a laser transmitter and a laser receiver; acquiring an elevator dragging steel wire physical image between an elevator brake wheel and an elevator car and between the elevator brake wheel and a counterweight through an infrared camera, and analyzing the appearance form of the elevator dragging steel wire physical image through a computer; collecting acoustic signals generated by friction between an elevator brake wheel and an elevator dragging steel wire through an acoustic signal collecting sensor, and analyzing the collected acoustic signals through a computer; the actual space height and position of the elevator car and the balance weight are detected by the height positioning sensor, and the actual space height and position data of the elevator car are analyzed by the computer.
Description
Technical Field
The invention belongs to the technical field of elevator safety monitoring, and particularly relates to an elevator brake wheel wear degree monitoring system.
Background
The elevator brake wheel is a main component part of an elevator brake, is also a structural part in direct contact between the elevator brake and an elevator dragging steel wire, and plays an important role in the elevator working process. The elevator pulls the steel wire and hangs on elevator brake pulley, and elevator pulls steel wire one end and is being connected the elevator car, and elevator pulls the steel wire other end and is being connected the counter weight, and when elevator stopper work, elevator pulls the steel wire and can drive the elevator car up-and-down motion along with the rotation of elevator brake pulley.
Because the elevator car and the balance weight have larger weight, larger friction force is generated between the elevator dragging steel wire and the elevator braking wheel, after frequent reciprocating use, dangerous situations such as abrasion failure of the elevator braking wheel or abrasion fracture of the elevator dragging steel wire are easily caused, and further, elevator safety accidents are possibly caused, so that the abrasion degree of the elevator braking wheel and the elevator dragging steel wire needs to be checked periodically.
At present, the related safety inspection work of the elevator is finished on site by detection personnel, and the elevator needs to stop running during the safety inspection, and the elevator stop operation inevitably brings inconvenience to people going upstairs and downstairs, and meanwhile, the defects of low inspection efficiency and low detection precision exist. Furthermore, the relevant safety checks of the elevator are carried out regularly, i.e. belong to intermittent checks, and if during two safety checks serious wear of the brake wheels of the elevator occurs, a safety accident may occur.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the elevator brake wheel wear degree monitoring system which can monitor the wear degrees of the elevator brake wheel and the elevator dragging steel wire in real time, can discover problems in time and give an alarm, and can inform maintenance personnel of arriving at the problem at the first time to maintain the elevator so as to eliminate potential safety hazards, thereby reducing the occurrence rate of safety accidents and ensuring the life safety of elevator users.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the elevator brake wheel wear degree monitoring system comprises a first laser transmitter, a second laser transmitter, a first laser receiver, a second laser receiver, wireless data transmission equipment and a computer; the elevator brake wheel and the counterweight are connected with the elevator by wireless data transmission equipment, and the elevator brake wheel and the counterweight are connected with the elevator brake wheel by wireless data transmission equipment; the second laser transmitter and the second laser receiver are fixedly arranged on the wall of the elevator shaft, the second laser transmitter and the second laser receiver are opposite to each other, an elevator dragging steel wire between an elevator brake wheel and an elevator car is positioned between the second laser transmitter and the second laser receiver, and the second laser receiver is in wireless data connection with wireless data transmission equipment; the wireless data transmission equipment is fixedly arranged on the top plate of the elevator shaft, the wireless data transmission equipment is in wireless data connection with the computer, and the computer is located in the remote monitoring room.
A row of laser emission ports are arranged on the first laser emitter and the second laser emitter, and a row of laser receiving ports are arranged on the first laser receiver and the second laser receiver; the laser emission ports on the first laser emission instrument are the same in number and correspond to the laser receiving ports on the first laser receiving instrument in position one by one, and the first laser emission instrument and the second laser emission instrument are matched to detect the transverse position variation of the elevator dragging steel wire between the elevator brake wheel and the balance weight; the laser emission ports on the second laser emission instrument are the same in number and in one-to-one correspondence with the laser receiving ports on the second laser receiving instrument, and the elevator dragging steel wire transverse position change quantity between the elevator brake wheel and the elevator car is detected through the cooperation of the second laser emission instrument and the second laser receiving instrument.
The wall of the elevator shaft is fixedly provided with a first infrared camera and a second infrared camera, and the first infrared camera and the second infrared camera are in wireless data connection with wireless data transmission equipment; the first infrared camera is opposite to the elevator dragging steel wire facing between the elevator brake wheel and the balance weight, the physical image of the elevator dragging steel wire between the elevator brake wheel and the balance weight is acquired through the first infrared camera, and the appearance form of the acquired elevator dragging steel wire physical image is analyzed through the computer; the second infrared camera is opposite to the elevator dragging steel wire facing between the elevator brake wheel and the elevator car, the physical image of the elevator dragging steel wire between the elevator brake wheel and the elevator car is acquired through the second infrared camera, and the appearance form of the acquired physical image of the elevator dragging steel wire is analyzed through the computer.
The shell of the elevator brake wheel is fixedly provided with an acoustic signal acquisition sensor, the acoustic signal acquisition sensor is in wireless data connection with wireless data transmission equipment, acoustic signals generated by friction between the elevator brake wheel and an elevator dragging steel wire are acquired through the acoustic signal acquisition sensor, and the acquired acoustic signals are analyzed through a computer.
The top of the balance weight is fixedly provided with a first height positioning sensor, the first height positioning sensor is in wireless data connection with wireless data transmission equipment, the first height positioning sensor is used for detecting the actual space height and position of the balance weight, and the computer is used for analyzing the actual space height and position data of the balance weight; the top fixed mounting of elevator car has the second high location sensor, the second high location sensor carries out wireless data connection with wireless data transmission equipment, detects elevator car's actual space height and position through the second high location sensor, carries out the analysis to elevator car's actual space height and position data through the computer.
The invention has the beneficial effects that:
the elevator brake wheel wear degree monitoring system can monitor the wear degrees of the elevator brake wheels and the elevator dragging steel wires in real time, can find problems in time and give an alarm, and can inform maintenance personnel of reaching the problem at the first time to maintain the elevator so as to eliminate potential safety hazards, so that the occurrence rate of safety accidents is reduced, and the life safety of elevator users is ensured.
Drawings
Fig. 1 is a front view of an elevator brake wheel wear monitoring system of the present invention;
fig. 2 is an isometric view of an elevator brake wheel wear monitoring system of the present invention;
In the figure, a first laser transmitter, a second laser transmitter, a first laser receiver, a second laser receiver, a wireless data transmission device, an elevator brake wheel, a counterweight, an elevator dragging wire, an elevator car, an infrared camera, a second infrared camera, an acoustic signal acquisition sensor, a first height positioning sensor and a second height positioning sensor are respectively arranged in the figures, wherein the first laser transmitter, the second laser receiver, the first laser receiver, the second laser receiver, the wireless data transmission device, the elevator brake wheel, the counterweight and the elevator dragging wire are respectively arranged in the figures, the elevator car is respectively arranged in the figures, the first laser transmitter, the second laser transmitter, the first laser receiver, the second laser receiver, the wireless data transmission device, the elevator brake wheel, the counterweight, the elevator dragging wire, the elevator car, the first infrared camera, the second infrared camera, the acoustic signal acquisition sensor, the first height positioning sensor and the second height positioning sensor are respectively arranged in the figures.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 and 2, an elevator brake wheel wear degree monitoring system comprises a first laser transmitter 1, a second laser transmitter 2, a first laser receiver 3, a second laser receiver 4, wireless data transmission equipment 5 and a computer; the elevator system comprises a first laser transmitter 1, a first laser receiver 3, an elevator brake wheel 6 and a counterweight 7, wherein the first laser transmitter 1 and the first laser receiver 3 are matched for use, the first laser transmitter 1 and the first laser receiver 3 are fixedly arranged on a wall of an elevator shaft, the first laser transmitter 1 and the first laser receiver 3 are opposite to each other, an elevator dragging steel wire 8 between the elevator brake wheel 6 and the counterweight 7 is positioned between the first laser transmitter 1 and the first laser receiver 3, and the first laser receiver 3 is in wireless data connection with a wireless data transmission device 5; the second laser emitter 2 is matched with the second laser receiver 4, the second laser emitter 2 and the second laser receiver 4 are fixedly arranged on the wall of the elevator shaft, the second laser emitter 2 and the second laser receiver 4 are opposite to each other, an elevator dragging steel wire 8 between an elevator brake wheel 6 and an elevator car 9 is positioned between the second laser emitter 2 and the second laser receiver 4, and the second laser receiver 4 is in wireless data connection with the wireless data transmission equipment 5; the wireless data transmission equipment 5 is fixedly arranged on the top plate of the elevator shaft, the wireless data transmission equipment 5 is in wireless data connection with a computer, and the computer is located in a remote monitoring room.
A row of laser emission ports are arranged on the first laser emitter 1 and the second laser emitter 2, and a row of laser receiving ports are arranged on the first laser receiver 3 and the second laser receiver 4; the laser emission ports on the first laser emission instrument 1 are the same in number and correspond to the laser receiving ports on the first laser receiving instrument 3 in position one by one, and the transverse position variation of the elevator dragging steel wire 8 between the elevator brake wheel 6 and the balance weight 7 is detected by matching the first laser emission instrument 1 with the second laser emission instrument 2; the laser emission ports on the second laser emission instrument 2 are the same in number and in one-to-one correspondence with the laser receiving ports on the second laser receiving instrument 4, and the second laser emission instrument 2 and the second laser receiving instrument 4 are matched to detect the transverse position variation of the elevator dragging steel wire 8 between the elevator brake wheel 6 and the elevator car 9.
The wall of the elevator shaft is fixedly provided with a first infrared camera 10 and a second infrared camera 11, and the first infrared camera 10 and the second infrared camera 11 are in wireless data connection with the wireless data transmission equipment 5; the first infrared camera 10 is opposite to the elevator dragging steel wire 8 facing to the position between the elevator brake wheel 6 and the balance weight 7, the physical image of the elevator dragging steel wire 8 between the elevator brake wheel 6 and the balance weight 7 is acquired through the first infrared camera 10, and the appearance form of the acquired physical image of the elevator dragging steel wire 8 is analyzed through a computer; the second infrared camera 11 is opposite to the elevator dragging steel wire 8 between the elevator brake wheel 6 and the elevator car 9, the physical image of the elevator dragging steel wire 8 between the elevator brake wheel 6 and the elevator car 9 is acquired through the second infrared camera 11, and the appearance form of the acquired physical image of the elevator dragging steel wire 8 is analyzed through a computer.
An acoustic signal acquisition sensor 12 is fixedly arranged on a shell of the elevator brake wheel 6, the acoustic signal acquisition sensor 12 is in wireless data connection with the wireless data transmission equipment 5, acoustic signals generated by friction between the elevator brake wheel 6 and the elevator dragging steel wire 8 are acquired through the acoustic signal acquisition sensor 12, and the acquired acoustic signals are analyzed through a computer.
A first height positioning sensor 13 is fixedly arranged at the top of the balance weight 7, the first height positioning sensor 13 is in wireless data connection with the wireless data transmission equipment 5, the actual space height and position of the balance weight 7 are detected through the first height positioning sensor 13, and the actual space height and position data of the balance weight 7 are analyzed through a computer; a second height positioning sensor 14 is fixedly arranged at the top of the elevator car 9, the second height positioning sensor 14 is in wireless data connection with the wireless data transmission equipment 5, the actual space height and position of the elevator car 9 are detected through the second height positioning sensor 14, and the actual space height and position data of the elevator car 9 are analyzed through a computer.
The following describes a one-time use procedure of the present invention with reference to the accompanying drawings:
After the elevator adopts the elevator brake wheel wear degree monitoring system, one end of the elevator traction steel wire 8 is connected with the elevator car 9 after the elevator traction steel wire 8 bypasses the elevator brake wheel 6, the other end of the elevator traction steel wire 8 is connected with the counterweight 7, if the elevator brake wheel 6 is worn, the outer diameter size of the elevator brake wheel 6 is correspondingly reduced, the spacing between the elevator traction steel wires 8 on the left side and the right side of the elevator brake wheel 6 is synchronously reduced, the spacing is directly reflected as the change of the transverse position of the elevator traction steel wire 8, the change of the transverse position of the elevator traction steel wire 8 can lead to the change of the shielding positions of the laser receiving port of the laser transmitter and the laser transmitting port of the laser transmitter, and once the change of the transverse position of the elevator traction steel wire 8 is obtained, the outer diameter wear amount of the elevator brake wheel 6 can be converted at the spacing, once the outer diameter wear amount of the elevator brake wheel 6 exceeds a safety set value, a computer sends alarm information at the first time, and a service personnel can go to a specified elevator for maintenance work at the first time after finding the alarm information.
In addition, the first infrared camera 10 and the second infrared camera 11 can acquire the physical image of the elevator dragging steel wire 8, the computer can analyze the appearance form of the elevator dragging steel wire 8 by the acquired physical image, and the hidden danger of whether the elevator dragging steel wire 8 is thinned and locally broken or not can be intuitively observed from the image, so that further guarantee is provided for the safe operation of the elevator.
Meanwhile, the first height positioning sensor 13 and the second height positioning sensor 14 can respectively acquire actual space height and position data of the counterweight 7 and the elevator car 9, if the variation of the actual space height and position data exceeds a safety set value, the situation that the elevator brake wheel 6 is possibly worn or the deformation of the elevator dragging steel wire 8 is excessively large is indicated, and at the moment, the computer can also send out alarm information.
Furthermore, for the acoustic signal acquisition sensor 12 arranged on the shell of the elevator brake wheel 6, acoustic signals generated by friction between the elevator brake wheel 6 and the elevator dragging steel wire 8 can be detected in real time, the real-time acoustic signals can be compared and analyzed with acoustic signals stored in a computer under normal conditions, and the computer can send alarm information when the real-time acoustic signals are abnormal.
Through the multiple detection means, the hidden danger of elevator operation can be found to the greatest extent, and the maintainer can maintain and arrange the problem elevator at the first time, so that the life safety of an elevator user is effectively ensured.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (3)
1. An elevator brake wheel degree of wear monitoring system, its characterized in that: the system comprises a first laser transmitter, a second laser transmitter, a first laser receiver, a second laser receiver, wireless data transmission equipment and a computer; the elevator brake wheel and the counterweight are connected with the elevator by wireless data transmission equipment, and the elevator brake wheel and the counterweight are connected with the elevator brake wheel by wireless data transmission equipment; the second laser transmitter and the second laser receiver are fixedly arranged on the wall of the elevator shaft, the second laser transmitter and the second laser receiver are opposite to each other, an elevator dragging steel wire between an elevator brake wheel and an elevator car is positioned between the second laser transmitter and the second laser receiver, and the second laser receiver is in wireless data connection with wireless data transmission equipment; the wireless data transmission equipment is fixedly arranged on the top plate of the elevator shaft, the wireless data transmission equipment is in wireless data connection with a computer, and the computer is positioned in a remote monitoring room;
A row of laser emission ports are arranged on the first laser emitter and the second laser emitter, and a row of laser receiving ports are arranged on the first laser receiver and the second laser receiver; the laser emission ports on the first laser emission instrument are the same in number and correspond to the laser receiving ports on the first laser receiving instrument in position one by one, and the first laser emission instrument and the second laser emission instrument are matched to detect the transverse position variation of the elevator dragging steel wire between the elevator brake wheel and the balance weight; the laser emission ports on the second laser emission instrument are the same in number and correspond to the laser receiving ports on the second laser receiving instrument in position one by one, and the second laser emission instrument is matched with the second laser receiving instrument to detect the transverse position variation of the elevator dragging steel wire between the elevator brake wheel and the elevator car;
The top of the balance weight is fixedly provided with a first height positioning sensor, the first height positioning sensor is in wireless data connection with wireless data transmission equipment, the first height positioning sensor is used for detecting the actual space height and position of the balance weight, and the computer is used for analyzing the actual space height and position data of the balance weight; the top of the elevator car is fixedly provided with a second height positioning sensor, the second height positioning sensor is in wireless data connection with wireless data transmission equipment, the actual space height and position of the elevator car are detected through the second height positioning sensor, and the actual space height and position data of the elevator car are analyzed through a computer;
If the elevator brake wheel is worn, the outer diameter of the elevator brake wheel is correspondingly reduced, so that the distance between the elevator traction steel wires at the left side and the right side of the elevator brake wheel is synchronously reduced, the distance is directly reflected as the change of the transverse position of the elevator traction steel wires, the shielding positions of the laser receiving opening of the laser transmitter and the laser transmitting opening of the laser transmitter are changed due to the change of the transverse position of the elevator traction steel wires, and the outer diameter wear of the elevator brake wheel can be indirectly calculated after the change of the transverse position of the elevator traction steel wires is obtained.
2. The elevator brake wheel wear monitoring system of claim 1, wherein: the wall of the elevator shaft is fixedly provided with a first infrared camera and a second infrared camera, and the first infrared camera and the second infrared camera are in wireless data connection with wireless data transmission equipment; the first infrared camera is opposite to the elevator dragging steel wire facing between the elevator brake wheel and the balance weight, the physical image of the elevator dragging steel wire between the elevator brake wheel and the balance weight is acquired through the first infrared camera, and the appearance form of the acquired elevator dragging steel wire physical image is analyzed through the computer; the second infrared camera is opposite to the elevator dragging steel wire facing between the elevator brake wheel and the elevator car, the physical image of the elevator dragging steel wire between the elevator brake wheel and the elevator car is acquired through the second infrared camera, and the appearance form of the acquired physical image of the elevator dragging steel wire is analyzed through the computer.
3. The elevator brake wheel wear monitoring system of claim 1, wherein: the shell of the elevator brake wheel is fixedly provided with an acoustic signal acquisition sensor, the acoustic signal acquisition sensor is in wireless data connection with wireless data transmission equipment, acoustic signals generated by friction between the elevator brake wheel and an elevator dragging steel wire are acquired through the acoustic signal acquisition sensor, and the acquired acoustic signals are analyzed through a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011260332.5A CN112173912B (en) | 2020-11-12 | 2020-11-12 | Elevator brake wheel wear degree monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011260332.5A CN112173912B (en) | 2020-11-12 | 2020-11-12 | Elevator brake wheel wear degree monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN112173912A CN112173912A (en) | 2021-01-05 |
| CN112173912B true CN112173912B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011260332.5A Active CN112173912B (en) | 2020-11-12 | 2020-11-12 | Elevator brake wheel wear degree monitoring system |
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| 电梯系统垂直振动动态特性研究;刘希花;山东科技大学学报(自然科学版);20100215;第62-66页 * |
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