CN111994750B - Elevator guide rail dynamic detection system - Google Patents
Elevator guide rail dynamic detection system Download PDFInfo
- Publication number
- CN111994750B CN111994750B CN202010897139.6A CN202010897139A CN111994750B CN 111994750 B CN111994750 B CN 111994750B CN 202010897139 A CN202010897139 A CN 202010897139A CN 111994750 B CN111994750 B CN 111994750B
- Authority
- CN
- China
- Prior art keywords
- guide rail
- elevator car
- measuring device
- elevator
- rail assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
本发明公开一种电梯导轨动态检测系统，其包括：电梯轿厢；导轨组件，由多组等长的钢轨拼接而成；导靴，对称安装在电梯轿厢外壁，且与导轨组件相对应，用于配合导轨组件对上下移动的电梯轿厢进行限位；测距装置，安装于电梯轿厢顶部，用于在电梯轿厢运行移动过程中对电梯轿厢顶部至井道顶部的距离进行实时测量从而确定电梯轿厢的实时位置；测温装置，用于对导轨组件的温度进行实时测量。使用工作过程中不需要检修人员爬进电梯井道进行操作，降低了导轨检测过程的危险性，同时检测过程能够在电梯正常上下运行的过程中进行，不会影响电梯的正常运行。
The present invention discloses a dynamic detection system for elevator guide rails, which includes: an elevator car; a guide rail assembly, which is spliced by multiple groups of equal-length steel rails; guide shoes, which are symmetrically installed on the outer wall of the elevator car and correspond to the guide rail assembly, and are used to cooperate with the guide rail assembly to limit the elevator car moving up and down; a distance measuring device, which is installed on the top of the elevator car, and is used to measure the distance from the top of the elevator car to the top of the shaft in real time during the movement of the elevator car, so as to determine the real-time position of the elevator car; a temperature measuring device, which is used to measure the temperature of the guide rail assembly in real time. During the use process, maintenance personnel do not need to climb into the elevator shaft to operate, which reduces the danger of the guide rail detection process. At the same time, the detection process can be carried out during the normal up and down movement of the elevator, and will not affect the normal operation of the elevator.
Description
Technical Field
The invention is applied to the field of elevator detection, and particularly relates to a dynamic elevator guide rail detection system.
Background
The elevator guide rail is installed around elevator car more, cooperate and carry out spacingly with elevator car fixed connection's guide shoe to the elevator car that reciprocates, consequently, directly relate to the security and the travelling comfort of elevator, when the guide rail certain position is in elevator car's lift in-process and is rubbed with guide shoe repeatedly, can send out abnormal sound, lead to the guide rail to receive the thinning of friction position to influence elevator riding travelling comfort simultaneously, current guide rail detection mode is mostly that the maintainer gets into the well in measurement, utilize measuring tool to measure and detect the straightness etc. of guide rail, current this kind of detection mode has following defect:
(1) The detection needs to be carried out manually, and potential safety hazards easily occur in the detection process.
(2) Detection needs detection instrument detects its wearing and tearing degree to the straightness that hangs down of each position guide rail in proper order, comparatively wastes time and energy, detects the detection means of guide rail wearing and tearing through the straightness that hangs down simultaneously and is static detection, can't detect the wearing and tearing position in real time dynamically and lead to whole testing process unable to consider the elevator guide rail and receive the extra wearing and tearing that wind resistance and lead to from top to bottom because of the elevator in normal operating process.
(3) The existing guide rail detection is manual detection, and real-time detection of guide rail abrasion can not be performed under the condition of normal operation of an elevator.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dynamic detection system for an elevator guide rail aiming at the defects in the prior art.
In order to solve the technical problems, the invention provides an elevator guide rail dynamic detection system, which comprises:
An elevator car;
The guide rail assembly is formed by splicing a plurality of groups of steel rails with equal lengths;
The guide shoes are symmetrically arranged on the outer wall of the elevator car and correspond to the guide rail assemblies, and are used for limiting the elevator car moving up and down by matching with the guide rail assemblies;
The distance measuring device is arranged at the top of the elevator car and is used for measuring the distance from the top of the elevator car to the top of the well in real time in the running and moving process of the elevator car so as to determine the real-time position of the elevator car;
and the temperature measuring device is used for measuring the temperature of the guide rail assembly in real time.
As a possible implementation manner, further, the plurality of groups of steel rails are connected in a transversely adjustable manner and used for the detected clearance adjustment.
As a possible implementation manner, further, the temperature measuring devices are symmetrically arranged on two sides of the steel rail, and are arranged at one end of the mounting arm, and the other end of the mounting arm is welded to the side wall of the guide shoe.
As a possible implementation manner, the section of the guide shoe is trapezoid, and a trapezoid chute corresponding to the guide shoe is arranged in the steel rail.
As a possible embodiment, further, the distance measuring device uses an infrared laser distance measuring device or an acceleration distance measuring device.
As a possible implementation manner, further, the temperature measuring device adopts an infrared thermometer.
The invention adopts the technical scheme and has the following beneficial effects:
1. According to the invention, in the using process, maintenance personnel are not required to enter a hoistway to perform field operation, the risk of a guide rail detection process is reduced, meanwhile, the detection process can be performed in the normal up-down operation process of the elevator, the normal operation of the elevator is not influenced, and the guide rail abrasion can be detected in real time in the operation process of the elevator, so that the guide rail abrasion position can be detected dynamically in real time, the detection process can consider the extra abrasion of the guide rail of the elevator caused by wind resistance up and down in the normal operation process of the elevator, the detection result is more accurate, and a foundation is laid for the air-conditioner avoiding section of the guide rail in the later stage.
2. According to the invention, the aim of detecting whether friction exists between the guide rail and the guide shoe and the height of a friction point can be achieved by detecting the temperature of the guide rail in real time, the real-time temperature detection is completed in the elevator operation process, and the height of the friction heating point can be measured when the temperature is increased due to friction, so that the guide rail assembly can be subjected to the clearance adjustment by matching with the steel rail with the transversely adjustable position.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a front elevational view of the structure of the present invention;
FIG. 2 is a schematic diagram of the installation position of the temperature measuring device of the present invention;
FIG. 3 is a schematic diagram of the position of the temperature measuring device when the guide rail and the guide shoe collide and rub;
FIG. 4 is a schematic view of a rail splice construction of the present invention;
FIG. 5 is a schematic view of a transverse air-avoiding joint structure of a steel rail of the invention;
FIG. 6 is a plot of temperature versus distance samples for an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-5, the present invention provides an elevator guide rail dynamic detection system comprising:
an elevator car 1;
The guide rail assembly 2 is formed by splicing a plurality of groups of steel rails 201 with equal length, and the plurality of groups of steel rails 201 are connected in a transversely adjustable manner and used for the clearance adjustment after detection. The mounting plates are arranged at the two ends of the steel rail 201, corresponding strip-shaped mounting jacks are formed in the mounting plates, and the mounting plates at the two ends of the steel rail 201 are connected in a locking mode by inserting bolts into the strip-shaped mounting jacks after being abutted.
Guide shoes 3 are symmetrically arranged on the outer wall of the elevator car 1 and correspond to the guide rail assemblies 2, and are used for limiting the elevator car 1 moving up and down in cooperation with the guide rail assemblies 2, the sections of the guide shoes 3 are trapezoid, and trapezoid sliding grooves corresponding to the guide shoes are formed in the steel rails 201.
The distance measuring device 4 is arranged at the top of the elevator car 1 and is used for measuring the distance from the top of the elevator car 1 to the top of the elevator shaft in real time in the running and moving process of the elevator car 1 so as to determine the real-time position of the elevator car 1, and the distance measuring device 4 adopts an infrared laser distance meter or an acceleration distance meter. The distance measuring device 4 may employ TFmini Plus infrared laser distance measuring devices, the measurement principle of which is based on the time of flight TOF (time of flight). In order to improve the measuring efficiency, the system requires the elevator to go up or down once in the whole course in the normal running mode, and all the data of the height dimension in the well can be obtained. TFmini Plus to the highest output frequency 1000Hz, for example an elevator with a nominal speed of 3.5m/s, TFmini Plus to measure the car movement distance only 3.5mm. TFmini Plus output frequencies are sufficient to meet system requirements. The distance measuring device 4 can adopt an acceleration distance measuring instrument, and the main function of an acceleration sensor of the instrument is to provide acceleration primary data in the vertical direction of the car, and further calculate the displacement distance through secondary integration. The system employs an ADI company three-axis accelerometer ADXL355 based on MEMS structure. ADXL355 output range supports + -2 g to + -8 g, has low offset drift and low noise density characteristics, and typically consumes as low as 200 mu A, more typically as low as 20 mu A in standby mode, and outputs dynamic response frequencies as high as 1000Hz.
The temperature measuring device 5 is used for measuring the temperature of the guide rail assembly 2 in real time. The temperature measuring devices 5 are symmetrically arranged on two sides of the steel rail 201, the temperature measuring devices 5 are arranged at one end of the mounting arm 6, and the other end of the mounting arm 6 is welded on the side wall of the guide shoe 3. The temperature measuring device 5 can also be arranged at the top of the elevator car 1 and corresponds to the positions of the guide rail assemblies 2at the two sides. The temperature measuring device 5 adopts an infrared temperature measuring instrument, and the infrared temperature measuring instrument is an existing measuring instrument, and the specific use method, the installation method and the connection method are all common knowledge of a person skilled in the art, and are not described herein.
In the actual detection operation process, the distance measuring device 4 and the temperature measuring device 5 are started, the distance measuring device 4 measures the distance from the elevator car 1 to the top of the elevator shaft in real time, thereby determining the position of the elevator car 1, the temperature measuring device 5 measures the temperature of the two side walls of the steel rail 201 in real time, a detector simultaneously acquires detection data of the distance measuring device 4 and the temperature measuring device 5, the acquired distance data and temperature data can be made into a table for analysis, the distance data and the temperature data acquired at the same time are respectively calibrated on an abscissa and an ordinate, data points on the table are observed, the ordinate of most data points are almost the same, the temperatures of corresponding guide rails under the surface of the distances are the same, and the ordinate of the data points is approximately equal to the ambient temperature in the shaft at the moment, a few or individual data points are larger than the ordinate of the other data points, so that the temperature values under the distance values are higher than the temperature values of the guide rails which normally do not rub, namely, the guide rails under the distance values rub with guide shoes, so that the temperature rise of the guide rails is caused, after the position of the friction points is determined by the distance values, the operator can adjust the steel rail 201 in the corresponding guide rail assembly 2 according to the abscissa, and observe the position, the data, and the positions of the guide rail 201 are adjusted by the distance values, and the corresponding rail 201, and the position of the guide rail 201 is adjusted by the position adjustment bolt 201, and the opposite to the position adjustment bolt 201 is achieved by the position adjustment of the guide rail 201, and the opposite to the position adjustment bolt 201.
Examples:
When the ambient temperature of the hoistway is 30 ℃, a TFmini Plus infrared laser distance meter is adopted as a distance measuring device 4, an infrared temperature meter is adopted as a temperature measuring device 5, the elevator car 1 is controlled to descend from the top of the hoistway, and the temperature and the distance are sampled at the same time by taking 0.5m as a test sampling interval, and the result is shown in fig. 6.
It can be seen from the table that when the distance between the elevator car and the top wall of the hoistway is 5m and 12m, the average temperature values of the two sides of the guide rail are obviously higher than those measured by the rest distances, so that collision friction between the guide rail assembly 2 and the guide shoe 3 is determined when the distance between the elevator car and the top wall of the hoistway is 5m and 12m, and the accurate positioning of friction points is completed.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897139.6A CN111994750B (en) | 2020-08-31 | 2020-08-31 | Elevator guide rail dynamic detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897139.6A CN111994750B (en) | 2020-08-31 | 2020-08-31 | Elevator guide rail dynamic detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111994750A CN111994750A (en) | 2020-11-27 |
| CN111994750B true CN111994750B (en) | 2024-12-20 |
Family
ID=73466109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010897139.6A Active CN111994750B (en) | 2020-08-31 | 2020-08-31 | Elevator guide rail dynamic detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111994750B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205419379U (en) * | 2015-12-21 | 2016-08-03 | 苏州科达液压电梯有限公司 | Elevator system temperature protective device |
| CN106516922A (en) * | 2016-05-04 | 2017-03-22 | 谢杰清 | Operating behavior recording system of intelligent elevator |
| CN206955394U (en) * | 2017-06-06 | 2018-02-02 | 山东梯配网络科技有限公司 | A kind of elevator long-distance monitorng accident warning device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012188208A (en) * | 2011-03-09 | 2012-10-04 | Toshiba Elevator Co Ltd | Elevator system |
| CN206511774U (en) * | 2017-03-07 | 2017-09-22 | 苏州默顿快速电梯有限公司 | A kind of speed control system of towed elevator |
| CN206915536U (en) * | 2017-07-12 | 2018-01-23 | 广东皇冠电梯有限公司 | A kind of cage guide of the antifreeze solar heat protection spalling of waterproof |
| CN107445019B (en) * | 2017-09-18 | 2023-07-21 | 通力电梯有限公司 | Sliding guide shoe, elevator and method for calculating friction force between sliding guide shoe and guide rail |
| CN109297392B (en) * | 2018-12-13 | 2023-11-17 | 福建省特种设备检验研究院 | An adaptive guide rail bracket installation spacing measuring device and its working method |
-
2020
- 2020-08-31 CN CN202010897139.6A patent/CN111994750B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205419379U (en) * | 2015-12-21 | 2016-08-03 | 苏州科达液压电梯有限公司 | Elevator system temperature protective device |
| CN106516922A (en) * | 2016-05-04 | 2017-03-22 | 谢杰清 | Operating behavior recording system of intelligent elevator |
| CN206955394U (en) * | 2017-06-06 | 2018-02-02 | 山东梯配网络科技有限公司 | A kind of elevator long-distance monitorng accident warning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111994750A (en) | 2020-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8640544B2 (en) | Method for analyzing structure safety | |
| US5931264A (en) | Rail survey unit | |
| CN112378507B (en) | A computer vision-based structural vibration monitoring method based on motion compensation | |
| CN106284070A (en) | Light-duty carbon fiber cable-climbing robot with detecting system and the method for drag-line detection thereof | |
| FI88282B (en) | UTRUSTNING FOER KONTROLL AV RAKHETEN HOS HISSGEJDER | |
| CN108861923B (en) | Automatic elevator inspection system and method | |
| CN105910591B (en) | A kind of method and device detecting elevator verticality and headroom size | |
| CN107399652B (en) | A kind of elevator instantaneous kinetic energy measuring device applied in elevator detection | |
| CN109226646A (en) | The rivet of autoplugger riveting enters hole and heading height online test method and device | |
| CN111994750B (en) | Elevator guide rail dynamic detection system | |
| CN112985353A (en) | Cable anti-settlement displacement monitoring method and system based on electromagnetic detection | |
| CN107806851B (en) | Wire coil inspection device and method | |
| CN213141059U (en) | Elevator guide rail dynamic detection device | |
| CN117387679B (en) | Measuring device for automobile sensor | |
| CN213335939U (en) | Detection apparatus for bridge beam supports | |
| CN215263083U (en) | Material handling system, automatic overhead traveling crane and track offset detection device | |
| CN108195301B (en) | Deformation monitoring system and method for long-shaft-shaped hollow component | |
| NEZU et al. | Contactless measuring method of overhead contact line positions by stereo image measurement and laser distance measurement | |
| KR102074413B1 (en) | Measuring method for rail | |
| KR101392157B1 (en) | Apparatus for measuring percentage of contact on catneary | |
| JP2011126710A (en) | Elongation inspection device of wire rope and elongation inspection method of wire rope | |
| CN207600406U (en) | A kind of track tunneling boring detection device | |
| CN115535027B (en) | Wheel quality judgment method and system for rail vehicle | |
| CN218034751U (en) | Dedicated gap verifying attachment of elevator inspection | |
| CN118980408B (en) | A cable trench cover detection method and detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |