CN202729502U - Elevator brake detecting device - Google Patents
Elevator brake detecting device Download PDFInfo
- Publication number
- CN202729502U CN202729502U CN 201220386504 CN201220386504U CN202729502U CN 202729502 U CN202729502 U CN 202729502U CN 201220386504 CN201220386504 CN 201220386504 CN 201220386504 U CN201220386504 U CN 201220386504U CN 202729502 U CN202729502 U CN 202729502U
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- detecting device
- elevator brake
- brake
- sensor
- elevator
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Abstract
The utility model relates to an elevator brake detecting device, which belongs to the field of elevator detection and comprises a laser displacement sensor (1) arranged on a laser sensor support frame, wherein the laser displacement sensor (1) is connected into a main control system (12) through a sensor conditioning circuit (11). The elevator brake detecting device has the advantages that on the premise of not generating any influence on a brake, the abnormality of a direct current electromagnetic brake can be detected without dismounting the brake, and in addition, the influence of external factors such as driving power supply voltage fluctuation is avoided.
Description
Technical field
The utility model relates to a kind of elevator brake detecting device, the characteristics of motion of electromagnetic core when this device is worked by measuring drg, the characteristics of motion of electromagnetic core compares when working with drg, carries out the abnormality detection of dc electromagnetic brake, belongs to the elevator detection field.
Background technology
As this kind device, in No. 2795152 utility model patent of Japan a kind of device is disclosed for example, wherein, abnormal detector as dc electromagnetic brake, the time dependent of the electric current when measuring continuously the drg action changes, and will begin to play ascending velocity that movable core begins the current value till the mobile ascending velocity when normal from energising and compare, detect unusually with this.In addition, in Japan's utility model patent Unexamined Patent 3-55342 communique a kind of device is disclosed for example, the time that the decline of the exciting current when it detects the drg action occurs, and by should the time and predefined when normal and the scope of the decline time of origin when unusual compare, detect thus unusual.
In dc electromagnetic brake, the variation of the braking current not only action with drg itself is relevant, also with the fluctuation of driving power voltage, other factor analysis such as the curent change of traction motor, adopt existing by in the current sensing means that detects the variation of electric current time dependent, can't get rid of the impact of above listed external interference factor fully, and this device needs elevator is stopped ladder and wiring in measurement, and reliability and the robustness that detects safety and testing result is very restricted.
The utility model content
The purpose of this utility model is to provide a kind of elevator brake on-line measuring device, this device is not producing drg under the prerequisite of any impact, do not need to disassemble drg, just can be to unusually the detecting of dc electromagnetic brake, and can not be activated the impact of the external factors such as mains fluctuations.
To achieve these goals, a kind of elevator brake detecting device is disclosed in the technical solution of the utility model, it includes a laser displacement sensor 1 that is installed on the laser sensor support, and laser displacement sensor 1 is connected in the master control system 12 by Conditioning Circuits of Sensor 11.
Described laser displacement sensor 1 is the high precision non-contact displacement sensor, and its Measurement Resolution is better than 5 microns, and range is greater than 8mm.
Described Conditioning Circuits of Sensor 11 comprises the RS422 interface.
Working process of the present utility model is as follows:
When using the utility model to detect, laser displacement sensor 1 is right against the sense of motion of drg electromagnetic core 3, when laser displacement sensor 1 is used for measuring drg work, the time dependent curve of the displacement of drg electromagnetic core, Measurement Resolution is better than 5 microns, and range is greater than 8mm; The sensor fixed support is used for displacement pickup and drg are fixed; Conditioning Circuits of Sensor, it is used for collecting the take off data of laser displacement sensor 1, and imports take off data into master control system 12; Master control system 12, be used for the control survey process, this master control system 12 further has memory cell, its the storage by described method of inspection detect normal the time electromagnetic core moving displacement curve, and has a diagnostic subsystem, the electromagnetic core displacement curve of electromagnetic core displacement curve when unusual compared when it measured normal that method of inspection obtains with described drg, judge by diagnostic subsystem whether elevator brake exists unusually, to diagnose the state of described dc electromagnetic brake.
According to the technical program, because can be when detecting brake gear unusual, obtain diagnostic result by master control system, thus the fault that can accomplish to prevent brake gear in possible trouble, thereby can avoid elevator because of the brake gear et out of order stop the service.
The utility model can obtain following beneficial effect:
This device does not need to disassemble drg drg not being produced under the prerequisite of any impact, just can be to unusually the detecting of dc electromagnetic brake, and can not be subject to the impact because of external factors such as driving power voltage fluctuations.
Description of drawings
Fig. 1: be elevator brake detecting device principle sketch of the present utility model;
Fig. 2: the state picture of elevator brake wear well
Fig. 3: the state picture that the elevator brake maintenance is bad
Among the figure: 1, laser displacement sensor, 2, sensor stand, 3, the drg electromagnetic core, 4, copper sheathing, 5, magnet coil, 6, spring, 7, brake support frame, 8, brake control lever, 9, Transmission, 10, brake support, 11, Conditioning Circuits of Sensor, 12, master control system.
The specific embodiment:
Be described further for the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the composition of elevator brake includes drg electromagnetic core 3, copper sheathing 4, magnet coil 5, spring 6, brake support frame 7, brake control lever 8, Transmission 9, brake support 10.
The utility model when practicality with laser displacement sensor, 1 is fixed on the elevator brake magnet coil 5 by sensor stand 2, drg is in opening process, drg electromagnetic core 3 moves down and keeps its state, open brake control lever 8 by Transmission 9, spring 6 stores braking energy, laser displacement sensor 1 gathers drg electromagnetic core 3 data of operation downwards, by Conditioning Circuits of Sensor 11 data are passed to master control system 12, master control system 12 is analyzed by data acquisition, obtain speed displacement diagram of curves and acceleration plots, as shown in Figures 2 and 3.The data and curves figure of the state that the state by comparison elevator brake wear well and elevator brake are bad judges whether drg exists potential safety hazard.
Claims (4)
1. elevator brake detecting device, it is characterized in that: it includes a laser displacement sensor (1) that is installed on the laser sensor support, swashs a kind of elevator brake detecting device of a kind of elevator brake detecting device (11) and is connected in the master control system (12).
2. a kind of elevator brake detecting device according to claim 1, it is characterized in that: described laser displacement sensor (1) is the high precision non-contact displacement sensor, and its Measurement Resolution is better than 5 microns, and range is greater than 8mm.
3. a kind of elevator brake detecting device according to claim 1, it is characterized in that: described Conditioning Circuits of Sensor (11) comprises the RS422 interface.
4. a kind of elevator brake detecting device according to claim 1 is characterized in that: master control system (12) further have storage by described method of inspection detect normal the time the memory cell of electromagnetic core moving displacement curve; And have with described laser displacement sensor (1) obtain normal the time electromagnetic core displacement curve electromagnetic core displacement curve when unusual compare, judge whether elevator brake exists unusually, to diagnose the condition diagnosing subsystem of described dc electromagnetic brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386504 CN202729502U (en) | 2012-08-06 | 2012-08-06 | Elevator brake detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386504 CN202729502U (en) | 2012-08-06 | 2012-08-06 | Elevator brake detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202729502U true CN202729502U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386504 Expired - Fee Related CN202729502U (en) | 2012-08-06 | 2012-08-06 | Elevator brake detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202729502U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089764A (en) * | 2014-07-09 | 2014-10-08 | 杭州沃镭科技有限公司 | Detection device and method for performance of elevator brake |
| CN105151939A (en) * | 2015-10-24 | 2015-12-16 | 华东交通大学 | Method for monitoring abrasion of elevator band-type brake |
| CN105223014A (en) * | 2015-11-06 | 2016-01-06 | 上海市特种设备监督检验技术研究院 | A kind of portable elevator car braking distance detector and detection method thereof |
| WO2017101135A1 (en) * | 2015-12-18 | 2017-06-22 | 海安县申菱电器制造有限公司 | Intelligent detection system for electromagnetic brake |
| CN107814288A (en) * | 2017-09-30 | 2018-03-20 | 南京市特种设备安全监督检验研究院 | A kind of method of elevator brake intellectual monitoring early warning |
| CN109179131A (en) * | 2018-10-10 | 2019-01-11 | 永大电梯设备（中国）有限公司 | A kind of detection method of elevator internal contracting brake |
-
2012
- 2012-08-06 CN CN 201220386504 patent/CN202729502U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089764A (en) * | 2014-07-09 | 2014-10-08 | 杭州沃镭科技有限公司 | Detection device and method for performance of elevator brake |
| CN104089764B (en) * | 2014-07-09 | 2016-05-11 | 杭州沃镭智能科技股份有限公司 | A kind of elevator brake device for detecting performance and detection method |
| CN105151939A (en) * | 2015-10-24 | 2015-12-16 | 华东交通大学 | Method for monitoring abrasion of elevator band-type brake |
| CN105223014A (en) * | 2015-11-06 | 2016-01-06 | 上海市特种设备监督检验技术研究院 | A kind of portable elevator car braking distance detector and detection method thereof |
| WO2017101135A1 (en) * | 2015-12-18 | 2017-06-22 | 海安县申菱电器制造有限公司 | Intelligent detection system for electromagnetic brake |
| CN107814288A (en) * | 2017-09-30 | 2018-03-20 | 南京市特种设备安全监督检验研究院 | A kind of method of elevator brake intellectual monitoring early warning |
| CN107814288B (en) * | 2017-09-30 | 2023-10-13 | 南京市特种设备安全监督检验研究院 | Intelligent monitoring and early warning method for elevator brake |
| CN109179131A (en) * | 2018-10-10 | 2019-01-11 | 永大电梯设备（中国）有限公司 | A kind of detection method of elevator internal contracting brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Youmeng Inventor after: Du Wenguang Inventor after: Fang Gang Inventor after: Shi Zhanhang Inventor after: Tong Zhen Inventor after: Xue Hao Inventor after: Jiang Yunfei Inventor after: Huo Nan Inventor before: Zhang Youmeng Inventor before: Du Wenguang Inventor before: Fang Gang Inventor before: Shi Zhanxing Inventor before: Tong Zhen Inventor before: Xue Hao Inventor before: Jiang Yunfei Inventor before: Huo Nan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140806 |
|
| EXPY | Termination of patent right or utility model |