CN107817122A - A kind of escalator braking distance no-load method of testing and device - Google Patents
A kind of escalator braking distance no-load method of testing and device Download PDFInfo
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- CN107817122A CN107817122A CN201710897527.2A CN201710897527A CN107817122A CN 107817122 A CN107817122 A CN 107817122A CN 201710897527 A CN201710897527 A CN 201710897527A CN 107817122 A CN107817122 A CN 107817122A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of escalator braking distance no-load method of testing and device, including：The braking distance tested under escalator idle condition, and it is S to record the braking distance0；According to the test of real-time braking distance, mean braking deceleration a when calculating unloaded0；According to braking distance S0, it is unloaded when mean braking deceleration a0, escalator load load mnAnd escalator loads the correction factor k of n times of full loadnObtain the braking distance under escalator Arbitrary Loads；Braking distance result of calculation under different loads is depicted as curve.The test that method and device provided by the invention passes through unloaded braking distance and stop deceleration, by the calculating of mathematical modeling, the braking distance of escalator under Arbitrary Loads can be predicted, realize the braking distance of no-load test escalator, solve and carry the test risk problem that counterweight is brought, testing cost is reduced, improves testing efficiency.
Description
Technical field
The present invention relates to escalator braking ability technical field, more particularly to a kind of escalator braking distance no-load to survey
Method for testing and device.
Background technology
Escalator is that the public places such as station, market, subway realize that big flow passenger conveys indispensable traffic work
Tool, use range is extremely extensive in recent years, the escalator recoverable amount in China also rapid increase.But at the same time help automatically
Terraced security incident also shows the trend of rising.Especially in December, 2010 Shenzhen escalator drive in the wrong direction, in July, 2011 Beijing
Iron drives in the wrong direction after accident and in July, 2015 Hubei staircase volume people accident generation, and the safety problem of escalator has obtained the whole society
Pay close attention to.It especially the braking ability of escalator and can in time brake, all directly influence the order of severity of accident.
But current line and disunity less for braking ability evaluation method in the industry, also lack pacify specifically for escalator in addition
The standard criterion assessed entirely, escalator security evaluation also limit escalator security evaluation work also in without according to state
The development of work.At present, it is in the world in escalator operation security study field, European Union and leads status.European Union earlier will peace
The thought assessed entirely is incorporated into the manufacture of escalator, installation etc., such as in EN115-1-2008《Escalator and from moving
The manufacture on trade and installation safety standard》In just the manufacture of elevator various aspects, installation requirement are fully merged with safety requirements,
It is upper thought to embody safety to the utmost；EN115-2-2010 drafted in 2010 in European Union《Escalator and automatic
Pavement safety requirements：Part 2 is improved in the security performance with the existing escalator of automatic lifting, for there is longer use
The elevator of the time limit, the next risk of escalator imperfect tape can be evaluated using the standard.The research of domestic escalator safe practice
Stage still in tracking European Union and iso standard.Escalator basic safety standards GB 16899 adopting by equivalent Europe
EN115-1 standards, manufacture, installation and inspection to escalator provide the unified technical basis and safety requirements in the whole nation, are
A most important ring in the safety-related technical regulation of the existing escalator in China.In terms of escalator security evaluation,
GB24403.1 and GB20900 is respectively by ISO/TS 22559-1《The safety requirements part 1 of elevator-global basic security will
Ask》With ISO/TS 14798《Elevator, escalator and the method for moving sidewalk risk assessment and reduction》It is transformed, is me
The important normative reference in two, state's escalator security evaluation field.
China has in the national standard and inspection procedure that escalator braking distance detects to unloaded and fully loaded stop
The testing requirements of distance, but it is very big that braking distance detection risk is fully loaded among reality, it is desirable to it is higher, it is necessary to a number of
Counterweight could be completed, and in operating process, there is the danger of damage step and building once accidentally, for this problem, the present invention
A kind of method of no-load test braking distance is provided, avoids hidden danger caused by counterweight is carried, while reduces economic expenditure, is had very
Wide application prospect.
It is fully loaded with present for escalator in the method for braking distance detection in addition to full load test, also patent
(ZL201410014460.X) the underloading method of testing mentioned in：This method is under unloaded and light condition by running examination twice
Test, measure the braking distance under unloaded braking distance and underload, you can drawn by mathematical modeling less than or equal to specified load
The braking distance of escalator or moving sidewalk under lotus；Shortcoming is still to need load, and needs to test twice.
Prior art is to carry out fully loaded braking distance by loading rated load on staircase to test, first on staircase
Be evenly arranged rated load, be at most covered with 2/3 step, and load is on the top of staircase, after the completion of start staircase operation, when helping
After ladder operation to normal speed, emergency stop switch is pressed, while record the braking distance of staircase, it is desirable to which reviewer can grasp jerk
The time point pressed, to avoid causing the accident, it is desirable to it is higher, and certain risk be present.
The shortcomings that prior art, is：Fully loaded braking distance test needs counterweight, brings greatly inconvenience and danger；Test essence
Spend low, can not accurately catch braking procedure.This method is by the test of unloaded braking distance and stop deceleration, by mathematical modulo
The calculating of type, the braking distance under Arbitrary Loads can be obtained, without any counterweight, method of testing is safely, conveniently.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of escalator braking distance no-load method of testing
And device, this method and device can be by the tests of unloaded braking distance and stop deceleration, can by the calculating of mathematical modeling
The braking distance under Arbitrary Loads is obtained, without any counterweight, method of testing is safely, conveniently.
The purpose of the present invention is realized by following technical scheme：
A kind of escalator braking distance no-load method of testing, including：Test escalator idle condition under stop away from
From, and it is S to record the braking distance0；
According to the test of real-time braking distance, mean braking deceleration a when calculating unloaded0；
According to braking distance S0, it is unloaded when mean braking deceleration a0, escalator load load mnAnd escalator dress
Carry the correction factor k of n times of full loadnObtain the braking distance under escalator Arbitrary Loads；
Braking distance result of calculation under different loads is depicted as curve.
A kind of escalator braking distance no-load test device, including：Touch-screen, transport module, high-rate laser ranging mould
Block, braking distance computing module, deceleration calculation module and Drawing of Curve module；
The touch-screen, speed, angle, width, unloaded braking distance and unloaded stop for inputting escalator subtract
The data of speed, and show the braking distance prediction result under different loads, braking distance curve and testing result；
High-rate laser range finder module, for testing in real time the distance between instrument and reflector；
Braking distance computing module, for calculating from the range ability for pressing scram button to staircase during complete stop；
Deceleration calculation module, for calculate from when pressing scram button to the average retardation rate of staircase during complete stop；
Drawing of Curve module, with the braking distance result of calculation under different loads is depicted as into curve and shown.
Compared with prior art, one or more embodiments of the invention can have the following advantages that：
By the test of unloaded braking distance and stop deceleration, by the calculating of mathematical modeling, any load can be predicted
The braking distance of escalator under lotus, the braking distance of no-load test escalator is realized, solve and carry what counterweight was brought
Risk problem is tested, testing cost is reduced, improves testing efficiency.
Brief description of the drawings
Fig. 1 is escalator braking distance no-load method of testing flow chart；
Fig. 2 is escalator braking distance no-load tester structure chart；
Fig. 3 is escalator braking distance no-load test philosophy figure.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing to this hair
It is bright to be described in further detail.
As shown in figure 1, being escalator braking distance no-load method of testing, this method can realize that no-load tests escalator
Arbitrary Loads (including fully loaded) when braking distance, the braking distance tested first under escalator idle condition, and recording
The braking distance is S0；
According to the test of real-time braking distance, mean braking deceleration a when calculating unloaded0；
According to braking distance S0, it is unloaded when mean braking deceleration a0, escalator load load mnAnd escalator dress
Carry the correction factor k of n times of full loadnObtain the braking distance under escalator Arbitrary Loads；
Braking distance result of calculation under different loads is depicted as curve.
Braking distance formula under above-mentioned escalator Arbitrary Loads is：
Sn=kn·f(S0,a0,mn)
Wherein, n is fully loaded multiple, SnThe braking distance of n times of full load, unit m, k are loaded for escalatornFor certainly
Dynamic staircase loads the correction factor of n times of full load, a0For escalator zero load when mean braking deceleration, unit m/s2, mnFor
The load that escalator loads, unit kg.
As shown in Fig. 2 the present embodiment additionally provides a kind of escalator braking distance no-load test device, including：Touch
Screen, transport module, high-rate laser range finder module, braking distance computing module, deceleration calculation module and Drawing of Curve module；
The touch-screen, speed, angle, width, unloaded braking distance and unloaded stop for inputting escalator subtract
The data of speed, and show the braking distance prediction result under different loads, braking distance curve and testing result；
High-rate laser range finder module, for testing in real time the distance between instrument and reflector；
Braking distance computing module, for calculating from the range ability for pressing scram button to staircase during complete stop；
Deceleration calculation module, for calculate from when pressing scram button to the average retardation rate of staircase during complete stop；
Drawing of Curve module, with the braking distance result of calculation under different loads is depicted as into curve and shown.
Above-mentioned transport module can carry out wireless data transmission.
As shown in figure 3, for the principle of no-load method of testing, tester is placed on the step of staircase, and reflector is consolidated
Surely arrive below staircase at 0.5 meter.Instrument is opened, now high-rate laser range finder module sends infrared light, by reflector by light
Line returns, and by infrared light principle of reflection, the distance between tester and reflector is calculated in real time, when staircase reaches specified fortune
Scanning frequency degree V0Afterwards, press scram button, at the same tester record now with the distance between reflector S1, and start timer and open
Beginning timing, after staircase stops completely, stop timing, record time t, and tester record now between reflector away from
From S2, then the unloaded braking distance that staircase can now be calculated is S0, and average stop deceleration a is calculated0.By
Formula Sn=kn·f(S0,a0,mn), the braking distance under Arbitrary Loads can be obtained.
The escalator braking distance no-load method of testing and device that above-described embodiment provides can be with：
1st, the braking distance under no-load prediction escalator Arbitrary Loads is realized, reduces cost, reduces potential safety hazard；Survey
The braking distance under escalator idle condition is tried, and records this apart from size S0, while according to the test of real-time braking distance,
The braking calculated under idle condition subtracts average speed a0, according to formula Sn=kn·f(S0,a0, mn), it can obtain under Arbitrary Loads
Braking distance.
2nd, the unloaded braking distance of escalator is accurately calculated
The distance between tester real-time testing and reflector, while tester record is now the distance between with reflector
S1, and start timer and start timing, after staircase stops completely, stop timing, tester record now with reflector it
Between distance S2, then the braking distance that staircase can now be calculated is S0=S1-S2；Average retardation rate is a0=V0/
2S0, elevator calculating speed is V=a0T, if | V-V0|<ε, wherein ε are constant, S0=S1-S2, otherwise, S0=(V+V0)t/4。
3rd, by above-mentioned calculating, with reference to braking distance curve catastrophe point (the obvious separation of curve), by adjusting kn, obtain
Two sections of different curve evolution trend before and after to catastrophe point, and the curve of staircase brake distance under different loads is drawn automatically, directly
See the development trend for grasping staircase brake distance.
Although disclosed herein embodiment as above, described content only to facilitate understand the present invention and adopt
Embodiment, it is not limited to the present invention.Any those skilled in the art to which this invention pertains, this is not being departed from
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (3)
1. a kind of escalator braking distance no-load method of testing, it is characterised in that methods described includes：
The braking distance tested under escalator idle condition, and it is S to record the braking distance0；
According to the test of real-time braking distance, mean braking deceleration a when calculating unloaded0；
According to braking distance S0, it is unloaded when mean braking deceleration a0, escalator load load mnAnd escalator loads n
The correction factor k of times full loadnObtain the braking distance under escalator Arbitrary Loads；
Braking distance result of calculation under different loads is depicted as curve.
2. escalator braking distance no-load method of testing as claimed in claim 1, it is characterised in that the escalator is appointed
Meaning load under braking distance formula be：
Sn=kn·f(S0,a0,mn)
Wherein, n is fully loaded multiple, SnThe braking distance of n times of full load, k are loaded for escalatornN times is loaded for escalator
The correction factor of full load, a0For escalator zero load when mean braking deceleration, mnThe load loaded for escalator.
3. a kind of escalator braking distance no-load test device, it is characterised in that described device includes：Touch-screen, transmission mould
Block, high-rate laser range finder module, braking distance computing module, deceleration calculation module and Drawing of Curve module；
The touch-screen, for inputting speed, angle, width, unloaded braking distance and the unloaded stop deceleration of escalator
Data, and show the braking distance prediction result under different loads, braking distance curve and testing result；
High-rate laser range finder module, for testing in real time the distance between instrument and reflector；
Braking distance computing module, for calculating from the range ability for pressing scram button to staircase during complete stop；
Deceleration calculation module, for calculate from when pressing scram button to the average retardation rate of staircase during complete stop；
Drawing of Curve module, with the braking distance result of calculation under different loads is depicted as into curve and shown.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897527.2A CN107817122B (en) | 2017-09-28 | 2017-09-28 | Escalator stopping distance no-load test method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897527.2A CN107817122B (en) | 2017-09-28 | 2017-09-28 | Escalator stopping distance no-load test method and device |
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| CN107817122B CN107817122B (en) | 2020-02-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975119A (en) * | 2018-09-18 | 2018-12-11 | 华南理工大学广州学院 | A kind of escalator auto-action method for catching and device |
| CN110817629A (en) * | 2018-08-09 | 2020-02-21 | 杭州沪宁电梯部件股份有限公司 | Elevator diagnosis system |
| CN112340586A (en) * | 2020-10-17 | 2021-02-09 | 武汉信达天成物联网技术有限公司 | Escalator brake monitoring method and system for on-line monitoring |
| CN112938728A (en) * | 2021-03-08 | 2021-06-11 | 通力电梯有限公司 | Detection method for brake fault of escalator |
| US11934652B2 (en) | 2020-10-14 | 2024-03-19 | Samsung Electronics Co., Ltd. | Display apparatus and control method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004043136A (en) * | 2002-07-12 | 2004-02-12 | Hitachi Building Systems Co Ltd | Passenger conveyor |
| JP2012017200A (en) * | 2010-07-09 | 2012-01-26 | Hitachi Building Systems Co Ltd | Passenger conveyor control device |
| CN103395680A (en) * | 2013-08-13 | 2013-11-20 | 深圳市特种设备安全检验研究院 | Method for testing braking capacity of escalator and/or moving pavement |
| CN103754743A (en) * | 2014-01-13 | 2014-04-30 | 王旭 | Method of determining stopping distance of escalator or moving sidewalk |
| CN104071681A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Escalator brake parameter detecting method |
| CN204211329U (en) * | 2014-11-06 | 2015-03-18 | 广州广日电梯工业有限公司 | A kind of escalator or moving sidewalk braking distance detecting device |
| CN104528507A (en) * | 2014-12-26 | 2015-04-22 | 广东省特种设备检测研究院珠海检测院 | Comprehensive detection system and method for escalator |
| CN106744127A (en) * | 2016-12-01 | 2017-05-31 | 湖北特种设备检验检测研究院十堰分院 | Elevator spot brake detecting system and braking distance detection method |
-
2017
- 2017-09-28 CN CN201710897527.2A patent/CN107817122B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004043136A (en) * | 2002-07-12 | 2004-02-12 | Hitachi Building Systems Co Ltd | Passenger conveyor |
| JP2012017200A (en) * | 2010-07-09 | 2012-01-26 | Hitachi Building Systems Co Ltd | Passenger conveyor control device |
| CN103395680A (en) * | 2013-08-13 | 2013-11-20 | 深圳市特种设备安全检验研究院 | Method for testing braking capacity of escalator and/or moving pavement |
| CN103754743A (en) * | 2014-01-13 | 2014-04-30 | 王旭 | Method of determining stopping distance of escalator or moving sidewalk |
| CN104071681A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Escalator brake parameter detecting method |
| CN204211329U (en) * | 2014-11-06 | 2015-03-18 | 广州广日电梯工业有限公司 | A kind of escalator or moving sidewalk braking distance detecting device |
| CN104528507A (en) * | 2014-12-26 | 2015-04-22 | 广东省特种设备检测研究院珠海检测院 | Comprehensive detection system and method for escalator |
| CN106744127A (en) * | 2016-12-01 | 2017-05-31 | 湖北特种设备检验检测研究院十堰分院 | Elevator spot brake detecting system and braking distance detection method |
Non-Patent Citations (2)
| Title |
|---|
| 吴常坤: "自动扶梯空载下行制停距离范围分析", 《中国特种设备安全》 * |
| 潘相晨: "自动扶梯的制停距离", 《中国特种设备安全》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110817629A (en) * | 2018-08-09 | 2020-02-21 | 杭州沪宁电梯部件股份有限公司 | Elevator diagnosis system |
| CN110817629B (en) * | 2018-08-09 | 2021-05-04 | 杭州沪宁电梯部件股份有限公司 | Elevator diagnosis system |
| CN108975119A (en) * | 2018-09-18 | 2018-12-11 | 华南理工大学广州学院 | A kind of escalator auto-action method for catching and device |
| US11934652B2 (en) | 2020-10-14 | 2024-03-19 | Samsung Electronics Co., Ltd. | Display apparatus and control method thereof |
| CN112340586A (en) * | 2020-10-17 | 2021-02-09 | 武汉信达天成物联网技术有限公司 | Escalator brake monitoring method and system for on-line monitoring |
| CN112340586B (en) * | 2020-10-17 | 2023-06-02 | 武汉信达天成物联网技术有限公司 | Escalator brake monitoring method and system for on-line monitoring |
| CN112938728A (en) * | 2021-03-08 | 2021-06-11 | 通力电梯有限公司 | Detection method for brake fault of escalator |
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Effective date of registration: 20240603 Address after: 510663 No.9, Keke Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Special Equipment Testing and Research Institute (Guangzhou Special Equipment Accident Investigation Technology Center Guangzhou Elevator Safety Operation Monitoring Center) Country or region after: China Address before: 6th Floor, Liurong Building, No. 65 Liurong Road, Yuexiu District, Guangzhou City, Guangdong Province, 510180 Patentee before: GUANGZHOU ACADEMY OF SPECIAL EQUIPMENT INSPECTION & TESTING Country or region before: China |
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