CN111320048B - Elevator brake test device and test method thereof - Google Patents
Elevator brake test device and test method thereof Download PDFInfo
- Publication number
- CN111320048B CN111320048B CN202010176707.3A CN202010176707A CN111320048B CN 111320048 B CN111320048 B CN 111320048B CN 202010176707 A CN202010176707 A CN 202010176707A CN 111320048 B CN111320048 B CN 111320048B
- Authority
- CN
- China
- Prior art keywords
- brake
- test
- elevator
- driving device
- dynamic
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 100
- 238000010998 test method Methods 0.000 title claims abstract description 12
- 230000008859 change Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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
-
- 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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to an elevator brake test device and a test method thereof, wherein the elevator brake test device comprises a PLC electric controller system, a test driving device connected with the PLC electric controller system, a tension sensor connected with the test driving device and a dynamic signal acquisition and analysis system, wherein the tension sensor is connected with a traction wheel of a tested elevator driving host machine through a test arm; the PLC electrical controller system controls the energizing and de-energizing of the first brake set and the second brake set being tested. By implementing the elevator brake test device, the maximum value and the relative stable value of the brake moment of each brake action can be measured, and the advantages and disadvantages of the brakes can be distinguished; the hidden trouble of elevator safety accidents caused by undetected problems is reduced or avoided.
Description
Technical Field
The invention relates to the field of elevator braking, in particular to an elevator brake test device and an elevator brake test method.
Background
One of the important objectives in the motion test or elevator brake motion life test of the type of 200 ten thousand tests of elevator brake is to find out the mechanical jamming phenomenon occurring during the motion test. However, the requirements of the brake actuation test Y6.2.9 in the current TSG T7007-2016 accessory Y drive host style test do not achieve the above objectives well. The reason is that the braking torque per actuation is not automatically tested and recorded during the actuation test of TSG T7007-2016. When the brake is partially mechanically blocked, the stroke is partially limited and the braking force is lost, the brake cannot be timely found until the blocking is deteriorated to the range which can be monitored by the action monitoring switch. Thus, the braking torque is likely to have been lost before the action monitoring switch is able to monitor the mechanical jam of the brake, and an accident may have occurred.
In particular, the action test requirements of the prior art type test only require that braking torque tests be carried out on braking torque of the drive machine of the Y6.2.4 elevator when necessary. However, in the actual use process of the elevator, the brake of the elevator plays a very important role in the aspect of elevator safety, and the loss or the shortage of the braking moment in one action can cause serious accidents of unexpected movement or overspeed top-rushing and pit-collision of the elevator car. Therefore, the conventional test of the brake operation type of the elevator is required to be improved, and the maximum value and the relatively stable value of the brake torque of each operation are measured.
In addition, the current type test does not require the requirement of test on the service life of the friction plate (lining) of the brake, but the service life test modes of the friction plates of other brakes are greatly different from the actual working condition of the elevator driving main machine brake. The elevator brake test device is characterized in that the service life of the friction plate (lining) of the brake (group) of the elevator brake test device can be tested on a real elevator driving host machine, and the service life of the friction plate (lining) under a relatively real working condition can be distinguished.
Disclosure of Invention
The invention aims to solve the technical problem of providing an elevator brake test device and an elevator brake test method aiming at the defects in the prior art.
The technical scheme adopted for solving the technical problems is as follows: the elevator brake test device comprises a PLC electric controller system, a test driving device connected with the PLC electric controller system, a tension sensor connected with the test driving device and a dynamic signal acquisition and analysis system, wherein the tension sensor is connected with a traction wheel of a tested elevator driving host through a test arm;
The PLC electrical controller system controls the power-on and power-off of the tested first brake group and the tested second brake group; the first braking group and the second braking group are in a clasping state to the braking drum rigidly connected with the traction sheave through friction plates during power failure, and are in a releasing state to the braking drum rigidly connected with the traction sheave through friction plates during power failure;
The driving device drives the traction sheave to rotate by a certain angle during power failure; the driving device drives the traction sheave to reset during electrifying;
And the dynamic signal acquisition and analysis system judges the maximum value and the relatively stable value of the braking moment according to the dynamic tension value data, so as to obtain the corresponding static friction moment and dynamic friction moment.
In some embodiments, the test drive comprises a hydraulic cylinder or drive motor or an electric drive.
In some embodiments, the elevator brake test apparatus includes two pairs of redundant non-contact travel switches.
In some embodiments, the tension sensor comprises an alternative torque sensor.
In some embodiments, the elevator brake test apparatus further comprises an intelligent computer for recording and determining that the detected data is outside of the pre-warning range.
An elevator brake test method for use in the elevator brake test apparatus described above, the method comprising:
The method comprises the steps that S1, a PLC (programmable logic controller) controls a brake to be powered off for a first preset time, in the first preset time, a first brake group and a second brake group are in a clasping state on a brake drum rigidly connected with a traction wheel through friction plates, a test driving device drives the traction wheel to rotate for a preset angle through a test arm, a tension sensor tests dynamic change data of a driving tension value of the test driving device, and the dynamic change data of the tension value is transmitted to a dynamic signal acquisition and analysis system;
S2, the dynamic signal acquisition and analysis system judges the maximum value and the relative stable value of the braking moment according to the dynamic change data of the tension value, so as to obtain the static friction moment and the dynamic friction moment corresponding to the maximum value and the stable value;
S3: the PLC electrical controller controls the brake to be powered off for a second preset time, and the test driving device drives the traction sheave to reset through the test arm;
s4: steps S1 and S2 are repeatedly performed, and repeated reliability tests are performed.
In some embodiments, the first preset time is 3 seconds and the second preset time is 2 seconds.
In some embodiments, steps SI-S4 are repeatedly performed until the friction plate fails, and repeated data is recorded to determine the life of the friction plate of the brake.
The elevator brake test device and the elevator brake test method have the following beneficial effects:
1. In the motion test of the elevator brake 200 ten thousand times type tests or the life test of the elevator brake motion, the maximum value and the relative stable value of each braking moment, namely the static friction moment and the dynamic friction moment, are tested in each motion.
2. The test device and the test method can test the service life of the friction plate (lining) of the brake (group) on the real elevator driving host machine and distinguish the service life of the friction plate (lining) under the relatively real working condition.
By implementing the elevator brake test device, the advantages and disadvantages of the brake can be distinguished; the hidden trouble of elevator safety accidents caused by undetected problems is reduced or avoided.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
Fig. 1 is a schematic diagram of an elevator brake test apparatus according to some embodiments of the invention;
fig. 2 is a functional block diagram of a test method of an elevator brake test apparatus in some embodiments of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 illustrates an elevator brake test apparatus according to some embodiments of the invention, which is mainly used for performing a test for detecting the braking effect of the brake of an elevator, so as to evaluate the advantages and disadvantages of the elevator brake, or detect potential risks or potential safety hazards which may exist, and the like. Meanwhile, the elevator brake test device can also judge the service life of the friction plate or the friction lining in the friction system in the elevator brake system.
The elevator brake test apparatus includes a PLC electrical controller system (not shown), a test driving apparatus 10 connected to the PLC electrical controller system, a tension sensor 40 connected to the test driving apparatus 10, and a dynamic signal acquisition and analysis system (not shown). The test driving device 10 is used for driving the brake 20 to rotate or reset relative to the braked unit 30.
As shown in fig. 2, the PLC electric controller system plays a control role for controlling energization and de-energization of the brake 20, setting an interval period of the test braking torque, controlling transmission of the tension sensor 40, controlling a travel switch of a travel of a driving end of the test driving device 10, controlling an operation detection switch, and the like.
The test driving device 10 is configured to drive the braked unit 30 to rotate by a certain angle or reset, specifically, when the power is off, the brake 20 is in a hugging state, i.e. a "braking" state, the test driving device 10 drives the braked unit 30 to rotate, and when the power is off, the brake 20 is in a releasing state, and the test driving device 10 drives the braked unit 30 to reset.
The tension sensor 40 is used for measuring tension value data during power failure and transmitting the tension value data to a dynamic signal acquisition and analysis system, and the dynamic signal acquisition and analysis system judges a maximum value and a relatively stable value of the braking moment according to the dynamic tension value data so as to obtain corresponding static friction moment and dynamic friction moment.
The test drive 10 in some embodiments includes a hydraulic system and a hydraulic cylinder driven by the hydraulic system, the hydraulic cylinder including a drive end coupled to the braked 30 for driving the braked 30 to rotate an angle or return. It will be appreciated that the drive means 10 also comprises a drive motor or an electric drive means. In some embodiments, the test drive apparatus 10 may also include an actuation detection switch (not shown) for controlling actuation of the brake 20.
The brake 20 comprises a first brake group 21 and a second brake group 22 which are respectively arranged at two sides of a brake drum 31, and when power is off, the first brake group 21 and the second brake group 22 are in a hugging state on the brake drum through friction plates 33; when energized, the first brake group 21 and the second brake group 22 are separated to both sides, and the first brake group 21 and the second brake group 22 are in a released state with respect to the brake drum 31.
The braked unit 30 in some embodiments may include a brake drum 31, a traction sheave 32 rigidly connected to the brake drum 31, and friction plates 33 disposed between the brake drum 31 and the first and second brake sets 21, 22 for braking rotation of the traction sheave 32. Wherein the brake drum 31 and the traction sheave 32 are arranged together and are positioned on a concentric circle, and the traction sheave 32 rotates to drive the brake drum 31 to rotate. The braked unit 30 further comprises a test arm 34 fixedly connected to the traction sheave 32, the test arm 34 being connected to the drive end of a hydraulic cylinder or a drive motor or an electric drive for driving the traction sheave 32 to rotate a certain angle or to return. The test arm 34 is elongated and vertically disposed in the middle of the traction sheave 32 and passes through the round axle of the traction sheave.
The elevator brake detection device in some embodiments further comprises a travel switch 50 for controlling the travel of the hydraulic cylinder, which travel switch is connected to the PLC electrical controller system for controlling the travel of the hydraulic cylinder or the travel of the drive motor, and thus the rotation angle of the traction sheave. Preferably, the elevator brake test apparatus may include two redundant non-contact travel switches 50 to activate one travel switch 50 in the event of a failure of the other travel switch 50.
The tension sensor 40 in some embodiments includes an alternative torque sensor.
The elevator brake test apparatus in some embodiments further comprises an intelligent computer for recording and determining that the detected data is outside of the pre-warning range.
The test method of the elevator brake test apparatus in some embodiments is as follows:
The method comprises the steps that S1, a PLC (programmable logic controller) controls a brake 20 to be powered off for a first preset time, a first brake group 21 and a second brake group 22 are in a clasping state through friction plates 33 on a brake drum 31 rigidly connected with a traction wheel 32, a test driving device drives the traction wheel 32 to rotate by a preset angle through a test arm 34, a tension sensor 40 tests dynamic change data of a driving tension value of the test driving device 10, and the dynamic change data of the tension value is transmitted to a dynamic signal acquisition and analysis system;
And S2, judging the maximum value and the relative stable value of the braking moment according to the dynamic change data of the tension value by the dynamic signal acquisition and analysis system, so as to obtain the static friction moment and the dynamic friction moment corresponding to the maximum value and the stable value.
S3: the PLC electrical controller controls the brake to be powered off for a second preset time, and the test driving device 10 drives the traction sheave 32 to reset through the test arm 34;
s4: steps S1 and S2 are repeatedly performed, and repeated reliability tests are performed.
Preferably, the first preset time is 3 seconds, and the second preset time is 2 seconds.
In some embodiments, the braking torque test interval is set by the PLC electrical controller system adjustment, e.g., setting steps S1 and S2 is repeated 100 times, and a braking torque test is performed.
In some embodiments, steps S1 and S2 are repeated continuously until the friction plate 33 fails, the number of cycles of the traction sheave 32 is recorded, and the life of the friction plate 33 is detected.
The elevator brake detection device is used for detecting the braking performance of the brake, and a signal acquisition and analysis system, such as a dynamic signal acquisition and analysis system, can be used for realizing automatic monitoring of the elevator brake for 200 ten thousand times, even 500 ten thousand times or more, further automatically monitoring the whole process of the service life test of the brake 20, recording the braking moment and the change thereof, recording the maximum value of the braking moment of each action and the condition of the relative stable value, recording the static friction moment and the dynamic friction moment corresponding to the maximum value and the relative stable value, and finally realizing the purposes of finding hidden danger and distinguishing the advantages and the disadvantages. Meanwhile, the test method is also a direct test or judgment method for judging the service life of the friction plate 33.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made with the scope of the claims should be covered by the claims.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (6)
1. The elevator brake test device is characterized by comprising a PLC electric controller system, a test driving device connected with the PLC electric controller system, a tension sensor connected with the test driving device and a dynamic signal acquisition and analysis system, wherein the tension sensor is connected with a traction wheel of a tested elevator driving host through a test arm; the test driving device comprises a hydraulic cylinder or a driving motor or an electric driving device; the elevator brake test device comprises two pairs of redundant non-contact travel switches; the test arm is in a longitudinal shape, is vertically arranged in the middle of the traction sheave and penetrates through a round mandrel of the traction sheave;
The PLC electrical controller system controls the power-on and power-off of the tested first brake group and the tested second brake group; the first braking group and the second braking group are in a clasping state to the braking drum rigidly connected with the traction sheave through friction plates during power failure, and are in a releasing state to the braking drum rigidly connected with the traction sheave through friction plates during power failure;
The driving device drives the traction sheave to rotate by a certain angle during power failure; the driving device drives the traction sheave to reset during electrifying;
And the dynamic signal acquisition and analysis system judges the maximum value and the relatively stable value of the braking moment according to the dynamic tension value data, so as to obtain the corresponding static friction moment and dynamic friction moment.
2. The elevator brake testing apparatus of claim 1, wherein the tension sensor comprises an alternative torque sensor.
3. Elevator brake testing apparatus according to any of claims 1-2, characterized in that the elevator brake testing apparatus further comprises an intelligent computer for recording and judging that the detected data is out of the pre-warning range.
4. An elevator brake testing method for use in an elevator brake testing apparatus according to any one of claims 1 to 3, characterized in that the method comprises:
The method comprises the steps that S1, a PLC (programmable logic controller) system controls a brake to be powered off for a first preset time, a first brake group and a second brake group are in a clasping state on a brake drum rigidly connected with a traction wheel through friction plates in the first preset time, a test driving device drives the traction wheel to rotate for a preset angle through a test arm, a tension sensor tests dynamic change data of a driving tension value of the test driving device, and the dynamic change data of the tension value is transmitted to a dynamic signal acquisition and analysis system;
s2, the dynamic signal acquisition and analysis system judges the maximum value and the relative stable value of the braking moment according to the dynamic change data of the tension value, so as to obtain the static friction moment and the dynamic friction moment corresponding to the maximum value and the stable value;
s3: the PLC electrical controller system controls the brake to be powered off for a second preset time, and the test driving device drives the traction sheave to reset through the test arm;
s4: steps S1 and S2 are repeatedly performed, and repeated reliability tests are performed.
5. The method of claim 4, wherein the first predetermined time is 3 seconds and the second predetermined time is 2 seconds.
6. The test method according to claim 4, wherein steps SI to S4 are repeatedly performed until the friction plate fails, and repeated data is recorded, thereby judging the life of the friction plate of the brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010176707.3A CN111320048B (en) | 2020-03-13 | 2020-03-13 | Elevator brake test device and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010176707.3A CN111320048B (en) | 2020-03-13 | 2020-03-13 | Elevator brake test device and test method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111320048A CN111320048A (en) | 2020-06-23 |
| CN111320048B true CN111320048B (en) | 2024-06-04 |
Family
ID=71163792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010176707.3A Active CN111320048B (en) | 2020-03-13 | 2020-03-13 | Elevator brake test device and test method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111320048B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776804B (en) * | 2021-09-22 | 2024-08-27 | 日立电梯电机（广州）有限公司 | Dynamic life test method for brake |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009057189A (en) * | 2007-09-03 | 2009-03-19 | Toshiba Elevator Co Ltd | Brake release device for elevator hoisting machine, and elevator system with the same |
| CN105905729A (en) * | 2016-06-30 | 2016-08-31 | 天津市特种设备监督检验技术研究院 | Detection method for braking force of elevator tractor based on big data |
| CN108059048A (en) * | 2017-11-13 | 2018-05-22 | 西子电梯科技有限公司 | The detection early warning system and method for early warning of a kind of elevator brake |
| CN208631856U (en) * | 2017-10-17 | 2019-03-22 | 陕西小溪机电科技有限公司 | Two-shipper towed elevator configured with safety return circuit detection system |
| CN208736594U (en) * | 2018-10-19 | 2019-04-12 | 苏州润吉驱动技术有限公司 | A kind of device measuring elevator traction machine braking moment |
| CN212101526U (en) * | 2020-03-13 | 2020-12-08 | 深圳市特种设备安全检验研究院 | Elevator brake testing device |
-
2020
- 2020-03-13 CN CN202010176707.3A patent/CN111320048B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009057189A (en) * | 2007-09-03 | 2009-03-19 | Toshiba Elevator Co Ltd | Brake release device for elevator hoisting machine, and elevator system with the same |
| CN105905729A (en) * | 2016-06-30 | 2016-08-31 | 天津市特种设备监督检验技术研究院 | Detection method for braking force of elevator tractor based on big data |
| CN208631856U (en) * | 2017-10-17 | 2019-03-22 | 陕西小溪机电科技有限公司 | Two-shipper towed elevator configured with safety return circuit detection system |
| CN108059048A (en) * | 2017-11-13 | 2018-05-22 | 西子电梯科技有限公司 | The detection early warning system and method for early warning of a kind of elevator brake |
| CN208736594U (en) * | 2018-10-19 | 2019-04-12 | 苏州润吉驱动技术有限公司 | A kind of device measuring elevator traction machine braking moment |
| CN212101526U (en) * | 2020-03-13 | 2020-12-08 | 深圳市特种设备安全检验研究院 | Elevator brake testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111320048A (en) | 2020-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101264840B (en) | Elevator device | |
| CN104010958A (en) | Brake torque monitoring and health assessment | |
| CN100372715C (en) | Brake condition monitoring | |
| FI119877B (en) | Elevator security | |
| CN108059048B (en) | Detection early warning system and early warning method for elevator brake | |
| CN101109668B (en) | Roller brake testing dynamometer | |
| CN107271165B (en) | Variable-frequency loading intelligent brake test system and test method thereof | |
| CN205045636U (en) | Elevator brake performance testing arrangement | |
| CN103502131A (en) | Method and arrangement for renewing the braking force of a brake of a hoisting machine | |
| CN111320048B (en) | Elevator brake test device and test method thereof | |
| EP3459890B1 (en) | Health monitoring of safety braking systems for elevators | |
| CN108362596A (en) | Elevator brake friction material friction and wear behavior evaluation experimental machine | |
| CN205274924U (en) | Elevator control system with braking moment detects function | |
| JP2014528870A (en) | Brake control device for brake system, brake system, rail vehicle, and operation method of brake system | |
| CN106986246A (en) | The state verification of traction machine hardware in loop and trouble-shooter | |
| CN212101526U (en) | Elevator brake testing device | |
| CN201411344Y (en) | Braking device for lifting machine | |
| CN214733596U (en) | Elevator brake response time detection device | |
| CN108203033A (en) | A kind of intelligent elevator braking control system | |
| US4024756A (en) | Computer type brake analyzer | |
| CN211553269U (en) | Brake temperature-resistant detection device of disc brake pad | |
| CN210594785U (en) | Brake device and elevator | |
| CN101927925A (en) | Braking device of hoisting machine | |
| CN114368378B (en) | Locomotive brake monitoring device and method | |
| CN113148792B (en) | Elevator brake response time detection device and method thereof |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210924 Address after: 518005 agricultural science and technology building, No. 1085, south of chaguang Road, Xili street, Nanshan District, Shenzhen, Guangdong Applicant after: Shenzhen Institute of quality and safety inspection and testing Address before: 518024 special inspection building, No. 1032, Honggang Road, Qingshuihe street, Luohu District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN INSTITUTE OF SPECIAL EQUIPMENT INSPECTION AND TEST |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |