CN103754743A - Method of determining stopping distance of escalator or moving sidewalk - Google Patents
Method of determining stopping distance of escalator or moving sidewalk Download PDFInfo
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- CN103754743A CN103754743A CN201410014460.XA CN201410014460A CN103754743A CN 103754743 A CN103754743 A CN 103754743A CN 201410014460 A CN201410014460 A CN 201410014460A CN 103754743 A CN103754743 A CN 103754743A
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- China
- Prior art keywords
- escalator
- moving sidewalk
- load
- braking distance
- volume
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- Escalators And Moving Walkways (AREA)
Abstract
The invention belongs to the field of braking performance of escalators or moving sidewalks and particularly relates to a method of determining stopping distance of an escalator or moving sidewalk. According to the method, no-load stopping distance and light-load stopping distance are measured by two running tests in no-load and light-load states, and the stopping distance of the escalator or moving sidewalk under the load smaller than or equal to rated load can be obtained through a mathematical model. The method is convenient, fast and safe; test results are accurate and reliable. Testing by a heavy-load test is not required, testing efficiency is greatly improved, damage of a lower device of the escalator or moving sidewalk, caused by braking performance not meeting the requirements when the load test method is used is avoided, and testing is less risky. The method has few measurement steps, workload is low, measurement efficiency is high, safety is high and determination results are accurate.
Description
Technical field
The invention belongs to escalator or moving sidewalk deceleration and stopping performance field, be specifically related to a kind of method of definite escalator or moving sidewalk braking distance.
Background technology
The deceleration and stopping performance of escalator and moving sidewalk has great impact to its safety performance, so corresponding national standard and specification have all been made regulation to its deceleration and stopping performance, and the braking distance carrying under state with volume under escalator and moving sidewalk light condition has been proposed to specific requirement; Escalator is determined to the load volume of carrying out on each step carries test according to the nominal width of step simultaneously.
National standard and specification regulation concentrate on whole rated loads on the step on top 2/3 of escalator or moving sidewalk and test; Therefore when volume carries test, between the start-stop of escalator or moving sidewalk, range ability only has the length of bottom 1/3 step of escalator or moving sidewalk, and between this start-stop, range ability comprises distance and the braking distance that escalator or moving sidewalk move while starting to normal operating speed.
Yet during due to escalator or moving sidewalk starting with full load, its run up time is longer, and range ability is shorter between start-stop, therefore often when escalator or moving sidewalk also run to command speed, will not brake, slightly error just may cause the damage of escalator or moving sidewalk lower member.Once the more important thing is that, when the braking distance that occurs escalator or moving sidewalk is above standard specified value, test load just very likely breaks escalator lower member, so the risk of test is also very large.
Therefore, in prior art, the shortcoming of test method is: field activity amount is large, and efficiency is low, need to use standard weights to be placed on each step; Measured error is large, and empirical risk is high.
Summary of the invention
A kind of method that the object of this invention is to provide definite escalator or moving sidewalk braking distance, this method not only measuring process is few, and work capacity is few and measurement efficiency is high, safe, determines that result is accurate.
For achieving the above object, the present invention has adopted following technical scheme: a kind of method of definite escalator or moving sidewalk braking distance, it comprises the steps:
1), under no-load condition and underload in the situation that, respectively the braking distance of escalator or moving sidewalk is detected, process is as follows:
Under no-load condition, when escalator or moving sidewalk move to steady operational status, interrupt the electrical source of power of escalator or moving sidewalk, make escalator or moving sidewalk out of service under brake condition, gather the braking distance S of this braking procedure
0;
Top at escalator or moving sidewalk loads underload m
1, described underload m
1be less than rated load m
volumeload, when escalator or moving sidewalk are at underload m
1situation under while moving to steady operational status, interrupt the electrical source of power of escalator or moving sidewalk, make escalator or moving sidewalk out of service under brake condition, gather the braking distance S of this braking procedure
1;
2), at Arbitrary Loads m
appointsituation under, described Arbitrary Loads m
appointfor being less than or equal to rated load m
volumeload, by following formula, calculate the braking distance S of escalator or moving sidewalk
appoint:
As Arbitrary Loads m
appointfor rated load m
volumetime, by following formula, calculate the braking distance S of escalator or moving sidewalk
volume:
In above formula:
S
appointfor escalator or moving sidewalk are at rated load m
appointbraking distance in situation, m;
S
volumefor escalator or moving sidewalk are at rated load m
volumebraking distance in situation, m;
S
0the braking distance under no-load condition for escalator or moving sidewalk, m;
S
1the braking distance in underload situation for escalator or moving sidewalk, m;
M
1for being carried in the underload on escalator or moving sidewalk, kg;
M
appointfor being carried in the Arbitrary Loads on escalator or moving sidewalk, kg;
M
volumefor being carried in the rated load on escalator or moving sidewalk, kg;
V is escalator or the command speed of moving sidewalk when operation, m/s;
G is acceleration due to gravity, gets 9.8m/s
2;
α is the leaning angle of escalator or moving sidewalk, degree (°).
Preferably, described underload m
1span be 0.1m
volume≤ m
1≤ 0.3m
volume.
Preferably, described underload m
1uniform load is in the position of the top on escalator slope step 1/3 step to top at the trial; Or described underload m
1uniform load is in the position of the top of moving sidewalk pedal 1/3 pedal to top at the trial.
Top 1/3 step on described escalator slope is also step regions escalator top, 1/3rd slope length; Top 1/3 pedal of described moving sidewalk is also pedal area moving sidewalk upper, 1/3rd slope length.
Beneficial effect of the present invention is as follows:
1), this method is passed through twice commissioning test under zero load and light condition, the unloaded braking distance and the volume that utilize apparatus measures to go out escalator or moving sidewalk carry braking distance, and then calculate escalator or moving sidewalk carries the braking distance in situation at volume by a math modeling, test method is convenient, fast, safety, and test results accurately and reliably.
2), adopt this method, as long as pass through twice commissioning test under unloaded and light condition, can draw the escalator that is less than or equal under rated load or the braking distance of moving sidewalk by math modeling, also can draw escalator or moving sidewalk braking distance during Arbitrary Load under nominal situation by math modeling, thereby greatly improve detection efficiency.
3), this method does not need to adopt the method for heavy lift test to test, greatly improved testing efficiency, while having avoided the method for working load test, because deceleration and stopping performance is undesirable, cause the damage of escalator and moving sidewalk lower device, reduced empirical risk.
Accompanying drawing explanation
Fig. 1 is the testing process schematic diagram of this method.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
In embodiment, take escalator as example, and the testing process of moving sidewalk is identical, repeats no more.
As shown in Figure 1, detecting step is as follows:
S1, initialization controller, input escalator parameter, input the nominal width z of escalator, inclined angle alpha, slope step is counted n, slope length l, according to the manufacture of GB16899 < < escalator and moving sidewalk and installation safety standard > > 5.4.2.1.3.1 bar table 2 regulation, determine the load carrying ability of each step, according to the manufacture of slope step escalator and moving sidewalk with safety standard is installed counts n to calculate nominal payload be rated load m
volume; Connect the actuating signal line of controller and brake gear, and manner of execution is set, connect controller and speed detector and straight-line displacement real-time monitoring device;
S2, starts escalator operation by controller, and Negotiation speed detection arrangement monitors escalator arrives command speed v;
S3, artificially interrupts the electrical source of power of escalator, completely out of service to escalator;
S4, measures and records escalator from the complete unloaded braking distance S of distance when out of service that runs out of steam by straight-line displacement real-time monitoring device
0;
S5, at step place, the top of escalator, loading certain load is underload m
1, starting escalator operation, Negotiation speed detection arrangement monitors escalator arrives command speed v;
S6, artificially interrupts the electrical source of power of escalator, to escalator at underload m
1situation under completely out of service;
S7, measures and records escalator by straight-line displacement real-time monitoring device and pass through following braking distance S from complete distance underload when out of service that runs out of steam
1;
S8, calculates escalator or moving sidewalk at rated load m by following formula
volumesituation under braking distance S
volume:
In above formula:
S
volumefor escalator or moving sidewalk are at rated load m
volumebraking distance in situation, m;
S
0the braking distance under no-load condition for escalator or moving sidewalk, m;
S
1the braking distance in underload situation for escalator or moving sidewalk, m;
M
1for being carried in the underload on escalator or moving sidewalk, kg;
M
volumefor being carried in the rated load on escalator or moving sidewalk, kg;
V is escalator or the command speed of moving sidewalk when operation, m/s;
G is acceleration due to gravity, gets 9.8m/s
2;
α is the leaning angle of escalator or moving sidewalk, degree (°).
In order to further illustrate the accuracy of this method, to provide, utilize braking distance that formula calculates and the comparison form between the actual braking distance recording of test below.
Table 1 inclined angle alpha is 35 °, the v escalator result of a measurement while being 0.5m/s
| Test load (Kg) | Observed reading (m) | Computing value (m) | Error (%) |
| 0 | 0.42 | ? | ? |
| 400 | 0.44 | / | / |
| 800 | 0.47 | 0.462 | 1.7 |
| 1000 | 0.48 | 0.474 | 1.25 |
| 1400 | 0.52 | 0.50 | 3.8 |
Table 2 inclined angle alpha is 30 °, the v escalator result of a measurement while being 0.5m/s
| Test load (Kg) | Observed reading (m) | Computing value (m) | Error (%) |
| 0 | 0.28 | ? | ? |
| 400 | 0.32 | / | / |
| 600 | 0.33 | 0.328 | 0.6 |
| 800 | 0.35 | 0.347 | 0.86 |
| 1000 | 0.37 | 0.364 | 1.6 |
Explanation of tables:
1, in above-mentioned two forms, the m in computing formula
1for the 400Kg in form the first hurdle.
2, the observed reading in form adopts traditional-handwork method to measure, and measured error is in cm level, and cannot eliminate.
Claims (3)
1. a method for definite escalator or moving sidewalk braking distance, is characterized in that comprising the steps:
1), under no-load condition and underload in the situation that, respectively the braking distance of escalator or moving sidewalk is detected, process is as follows:
Under no-load condition, when escalator or moving sidewalk move to steady operational status, interrupt the electrical source of power of escalator or moving sidewalk, make escalator or moving sidewalk out of service under brake condition, gather the braking distance S of this braking procedure
0;
Top at escalator or moving sidewalk loads underload m
1, described underload m
1be less than rated load m
volumeload, when escalator or moving sidewalk are at underload m
1situation under while moving to steady operational status, interrupt the electrical source of power of escalator or moving sidewalk, make escalator or moving sidewalk out of service under brake condition, gather the braking distance S of this braking procedure
1;
2), at Arbitrary Loads m
appointsituation under, described Arbitrary Loads m
appointfor being less than or equal to rated load m
volumeload, by following formula, calculate the braking distance S of escalator or moving sidewalk
appoint:
As Arbitrary Loads m
appointfor rated load m
volumetime, by following formula, calculate the braking distance S of escalator or moving sidewalk
volume:
In above formula:
S
appointfor escalator or moving sidewalk are at rated load m
appointbraking distance in situation, m;
S
volumefor escalator or moving sidewalk are at rated load m
volumebraking distance in situation, m;
S
0the braking distance under no-load condition for escalator or moving sidewalk, m;
S
1the braking distance in underload situation for escalator or moving sidewalk, m;
M
1for being carried in the underload on escalator or moving sidewalk, kg;
M
appointfor being carried in the Arbitrary Loads on escalator or moving sidewalk, kg;
M
volumefor being carried in the rated load on escalator or moving sidewalk, kg;
V is escalator or the command speed of moving sidewalk when operation, m/s;
G is acceleration due to gravity, gets 9.8m/s
2;
α is the leaning angle of escalator or moving sidewalk, degree (°).
2. the method for definite escalator according to claim 1 or moving sidewalk braking distance, is characterized in that: described underload m
1span be 0.1m
volume≤ m
1≤ 0.3m
volume.
3. the method for definite escalator according to claim 1 or moving sidewalk braking distance, is characterized in that: described underload m
1be carried at the trial the position of top step 1/3 step to top on escalator slope;
Or described underload m
1be carried at the trial the position of top pedal 1/3 pedal to top of moving sidewalk.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014460.XA CN103754743B (en) | 2014-01-13 | 2014-01-13 | Determine the method for escalator or moving sidewalk braking distance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014460.XA CN103754743B (en) | 2014-01-13 | 2014-01-13 | Determine the method for escalator or moving sidewalk braking distance |
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|---|---|
| CN103754743A true CN103754743A (en) | 2014-04-30 |
| CN103754743B CN103754743B (en) | 2015-09-30 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176580A (en) * | 2014-08-19 | 2014-12-03 | 杭州市特种设备检测研究院 | Method and device for detecting stopping characteristics of escalator and moving pavement |
| CN104748708A (en) * | 2015-02-11 | 2015-07-01 | 吴江全胜机电有限公司 | Detection method for downward operation stopping distance and deceleration of escalator |
| CN105600634A (en) * | 2016-02-22 | 2016-05-25 | 宁波宏大电梯有限公司 | Method for detecting braking torque of traction machine |
| CN107817122A (en) * | 2017-09-28 | 2018-03-20 | 广州特种机电设备检测研究院 | A kind of escalator braking distance no-load method of testing and device |
| CN113405816A (en) * | 2021-06-30 | 2021-09-17 | 阜阳市特种设备监督检验中心 | Method for testing performance of special motor vehicle in field or factory |
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| CN102874665A (en) * | 2012-09-27 | 2013-01-16 | 杭州亿恒科技有限公司 | Method and device for accurately and quickly measuring escalator stopping distance |
| CN202704740U (en) * | 2012-06-12 | 2013-01-30 | 王峰 | Braking distance measuring device for staircase |
| JP2013173603A (en) * | 2012-02-27 | 2013-09-05 | Hitachi Ltd | Passenger conveyor, and method of stopping passenger conveyor step |
| 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 |
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2014
- 2014-01-13 CN CN201410014460.XA patent/CN103754743B/en active Active
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| CN1477049A (en) * | 2003-01-15 | 2004-02-25 | 上海三菱电梯有限公司 | Permanent magnetic synchronous motor driven automatic escalator and method for implementing regular stopping distance requivement for automatic pavement |
| EP1777192A1 (en) * | 2005-10-21 | 2007-04-25 | Inventio Ag | Escalator or moving walkway |
| JP2013173603A (en) * | 2012-02-27 | 2013-09-05 | Hitachi Ltd | Passenger conveyor, and method of stopping passenger conveyor step |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176580A (en) * | 2014-08-19 | 2014-12-03 | 杭州市特种设备检测研究院 | Method and device for detecting stopping characteristics of escalator and moving pavement |
| CN104748708A (en) * | 2015-02-11 | 2015-07-01 | 吴江全胜机电有限公司 | Detection method for downward operation stopping distance and deceleration of escalator |
| CN105600634A (en) * | 2016-02-22 | 2016-05-25 | 宁波宏大电梯有限公司 | Method for detecting braking torque of traction machine |
| CN107817122A (en) * | 2017-09-28 | 2018-03-20 | 广州特种机电设备检测研究院 | A kind of escalator braking distance no-load method of testing and device |
| CN107817122B (en) * | 2017-09-28 | 2020-02-18 | 广州特种机电设备检测研究院 | Escalator stopping distance no-load test method and device |
| CN113405816A (en) * | 2021-06-30 | 2021-09-17 | 阜阳市特种设备监督检验中心 | Method for testing performance of special motor vehicle in field or factory |
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|---|---|
| CN103754743B (en) | 2015-09-30 |
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