CN103512695B - Testing table, testing system and testing method for brake load moment of brake - Google Patents
Testing table, testing system and testing method for brake load moment of brake Download PDFInfo
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- CN103512695B CN103512695B CN201310441589.4A CN201310441589A CN103512695B CN 103512695 B CN103512695 B CN 103512695B CN 201310441589 A CN201310441589 A CN 201310441589A CN 103512695 B CN103512695 B CN 103512695B
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Abstract
The invention discloses a testing table, a testing system and a testing method for brake load moment of a brake. The testing table for the brake load moment of the brake comprises a brake wheel, a pawl, a driving wheel, a first driving device, a second driving device and a rack, wherein the driving wheel and the brake wheel are both arranged on the rack, the first driving device is used for driving the driving wheel, the brake wheel is fixedly connected with the driving wheel, the brake wheel is provided with the pawl, the pawl is matched with ratchets, the second driving device is used for driving the ratchets, and one end of the pawl butts against the ratchets when braking is conducted. By means of the device, on-site braking tests do not need to be carried out on an escalator, corresponding testing data can be obtained by simulating the actual running process of the escalator on the device, on-site mounting and debugging work is reduced, debugging efficiency is improved, and potential safety hazards brought by the field tests are completely eradicated. The testing system and the testing method enable the testing process to be more convenient and enable the testing data to be more accurate.
Description
Technical field
The present invention relates to escalator or tilting moving sidewalk brake load moment field tests technical field, particularly relate to that a kind of brake load moment is test bed, test macro and method of testing thereof.
Background technology
According to relevant regulation, escalator and moving sidewalk should arrange at least one or more detent, the Main Function of detent is, when preventing escalator or moving sidewalk in unexpected power-off or occur abnormal suddenly, can brake escalator or moving sidewalk, ensure the safe handling of escalator or moving sidewalk, need to debug after detent installs, the size of the braking moment of detent is made to reach corresponding requirement, when debugging brake torque, to the counterweight of certain load be loaded on escalator or moving sidewalk, adopt and there is following shortcoming in this way:
1, on-the-spot test labour intensity is very large, needs repeatedly to carry heavier counterweight;
2, on-the-spot test regulates difficulty large, and on-the-spot uncertain factor is more, is difficult to hold accuracy during adjustment;
3, there is the danger of rushing the end in counterweight, and when the damping force of detent is not enough to allow escalator stop motion, counterweight will directly be flushed to the bottommost of escalator, thus causes damage to escalator.
Summary of the invention
The object of the present invention is to provide the brake load moment of a kind of convenient test, use safety test bed.
Another object of the present invention is the test macro providing a kind of convenient test.
A further object of the invention is to provide a kind of convenient test, measure method of testing accurately.
In order to realize object of the present invention, the technical scheme taked is:
A kind of brake load moment is test bed, comprise braked wheel, ratchet, driving wheel, the first drive unit, the second drive unit, frame, driving wheel, braked wheel are all installed in frame, first drive unit is for driving driving wheel, and braked wheel is fixedly connected with driving wheel, and braked wheel is provided with ratchet, ratchet matches with ratchet, second drive unit for driving ratchet, during braking, ratchet one end conflict ratchet.
First drive unit drives driving wheel to rotate, moment is provided for driving wheel rotates, the moment that the first drive unit just can be made to export by the output torque controlling the first drive unit is consistent with real escalator driving moment, braked wheel is fixedly connected with driving wheel, after braked wheel is braked, driving wheel stops operating accordingly, when ratchet conflicts the ratchet of braked wheel, for on-position, by controlling the second drive unit, drive detent, after detent to certain position, conflict ratchet on braked wheel time, braked wheel is braked, the braked wheel be braked stops operating, thus realize escalator braking procedure that is virtually reality like reality, adopt this device, do not need to carry out scene braking test to escalator apparatus, only need by simulating the real operational process of escalator on the apparatus, just corresponding experimental data can be obtained, reduce in-site installation, debugging efforts, improve debugging efficiency, and stop the potential safety hazard that on-the-spot test brings.
Below technical scheme is further illustrated:
Preferably, brake load moment is test bed also comprises reducing gear, and described first drive unit is motor, and the first drive unit output shaft connects reducing gear input shaft, and reducing gear output shaft connects driving wheel.The moment of the first drive unit can be improved by reducing gear, thus driving wheel just can be made to obtain larger moment when the first drive unit can be made to export less moment.
Preferably, described frame comprises movable stand, fixed mount, and movable stand is slidably installed on fixed mount, and described first drive unit, reducing gear are installed on movable stand, and the moving direction of described movable stand parallels with the axis of described driving wheel.First drive unit, reducing gear are installed on can relative on the movable stand of fixed mount movement, by regulating the position of movable stand, just can adjust the distance in reducing gear output shaft axle center and driving wheel axle center, thus make that same brake load moment is test bed can to the escalator of different centre distance, improve the utilization factor of equipment, reduce cost.
Preferably, reducing gear output shaft is connected with driving wheel by chain.
Preferably, described movable stand, fixed mount are welded by section bar.Movable stand, fixed mount are all more firm by section bar welded structure, and weight is lighter.
Preferably, described first drive unit is threephase asynchronous machine.
Preferably, described ratchet comprises first flank of tooth, second flank of tooth, 3rd flank of tooth, first flank of tooth, second flank of tooth, 3rd flank of tooth connects successively, first flank of tooth extends to the 3rd flank of tooth direction from braked wheel wheel face, 3rd flank of tooth extends to the first flank of tooth direction from braked wheel wheel face, second flank of tooth is between first flank of tooth and the 3rd flank of tooth, the first angle is become between first flank of tooth with the tangent plane of the first flank of tooth section start braked wheel wheel face, the second angle is become between 3rd flank of tooth with the tangent plane of the 3rd flank of tooth section start braked wheel wheel face, first angle second angle is acute angle, the angle of the first angle is less than the 3rd angle.Adopt ratchet in this way and can better withstand ratchet.
Preferably, described first flank of tooth, second flank of tooth, the 3rd flank of tooth can be all plane.
Preferably, described first flank of tooth, second flank of tooth, the 3rd flank of tooth can be all cambered surface.
Preferably, brake load moment is test bed also comprises pawl base, and described ratchet is rotating to be installed on pawl base.
Preferably, brake load moment is test bed also comprises contiguous block, and contiguous block one end is connected with the second drive unit output shaft, and the other end is rotatable to be installed on pawl base, and described ratchet is fixedly connected with contiguous block.
Preferably, described braked wheel and driving wheel are coaxially installed.
The test macro that the present invention also provides a kind of above-mentioned brake load moment test bed, comprise PLC, display module, torque sensor, PLC is electrically connected with the first drive unit, the second drive unit, display module, torque sensor respectively, and torque sensor and the first drive unit are electrically connected.
PLC monitors the first drive unit, the second drive unit, torque sensor obtains the output torque of the first drive unit, and the moment of torsion got is sent to PLC and carries out analyzing, processing, data after process are sent to display module by PLC, these data are shown as curve by display module, are convenient to user and observe intuitively.
Preferably, this test macro also comprises signal input module, and signal input module and PLC are electrically connected.Signal input module facilitates user to change corresponding parameter.
Preferably, described display module is computing machine.
Preferably, described computing machine is connected with printer.The existence of printer is convenient to user and the curve of display or other numerical value is printed.
The present invention also provides a kind of method of testing, gathers a secondary data at interval of time t1 torque sensor, and PLC judges whether the absolute value of adjacent twice data difference collected is greater than X;
Be judged as NO, then continue according to t1 time interval image data;
Be judged as YES, then the data collection interval of torque sensor be adjusted to t2;
After the data collection interval of torque sensor is adjusted to t2, PLC continues to judge whether the absolute value of adjacent twice data difference collected is less than Y;
Be judged as NO, then continue according to t2 time interval image data;
Be judged as YES, then the data collection interval of torque sensor be adjusted to t3, t1 > t2 > t3.
After starting to test, when the absolute value of adjacent twice data difference collected is 0, corresponding test phase is the first stage, the data in this stage do not affect testing the torque value gone for, when the sampling period is t1, and when detecting that the absolute value of adjacent twice data difference is greater than X, corresponding test phase is subordinate phase, during subordinate phase, ratchet engagement on ratchet and braked wheel, driving wheel is in auto state, the torque value that subordinate phase obtains is continuous propradation, when the sampling period is t2, and when detecting that the absolute value of adjacent twice data difference is less than Y, corresponding test phase is the phase III, the torque value that this stage obtains is more steady, closest to real data, by test process is divided into three phases, the sampling period that each stage is corresponding different, and it is minimum in the sampling period of phase III, make the sampled data of acquisition more accurate, more close to True Data, improve test accuracy.
Preferably, the data analysis that described PLC collects after torque sensor sampling time interval is adjusted to t3 calculates and draws moment of torsion mean value, and this moment of torsion mean value shows on display module.After sampling time interval is adjusted to t3, the data collected can react the moment of torsion of escalator more really, PLC passes through the moment of torsion mean value during this period of time of data analysis calculating place during this period of time, and this mean value is presented on display module, be convenient to user and fast, directly obtain this data, improve test data.
Preferably, described display module data genaration curve that torque sensor is collected showing.
Preferably, described t1 is 0.4-0.5 second.
Preferably, described t2 is 0.2-0.3 second.
Preferably, described t3 is 0.1-0.2 second.
Preferably, described X is 8kgfm.
Preferably, described Y is 8kgfm.
Advantage of the present invention is:
First drive unit drives driving wheel to rotate, moment is provided for driving wheel rotates, the moment that the first drive unit just can be made to export by the output torque controlling the first drive unit is consistent with real escalator driving moment, braked wheel is fixedly connected with driving wheel, after braked wheel is braked, driving wheel stops operating accordingly, when ratchet conflicts the ratchet of braked wheel, for on-position, by controlling the second drive unit, drive detent, after detent to certain position, conflict ratchet on braked wheel time, braked wheel is braked, the braked wheel be braked stops operating, thus realize escalator braking procedure that is virtually reality like reality, adopt this device, do not need to carry out scene braking test to escalator apparatus, only need by simulating the real operational process of escalator on the apparatus, just corresponding experimental data can be obtained, reduce in-site installation, debugging efforts, improve debugging efficiency, and stop the potential safety hazard that on-the-spot test brings.
PLC monitors the first drive unit, the second drive unit, torque sensor obtains the output torque of the first drive unit, and the moment of torsion got is sent to PLC and carries out analyzing, processing, data after process are sent to display module by PLC, these data are shown as curve by display module, are convenient to user and observe intuitively.
After starting to test, when the absolute value of adjacent twice data difference collected is 0, corresponding test phase is the first stage, the data in this stage do not affect testing the torque value gone for, when the sampling period is t1, and when detecting that the absolute value of adjacent twice data difference is greater than X, corresponding test phase is subordinate phase, during subordinate phase, ratchet engagement on ratchet and braked wheel, driving wheel is in auto state, the torque value that subordinate phase obtains is continuous propradation, when the sampling period is t2, and when detecting that the absolute value of adjacent twice data difference is less than Y, corresponding test phase is the phase III, the torque value that this stage obtains is more steady, closest to real data, by test process is divided into three phases, the sampling period that each stage is corresponding different, and it is minimum in the sampling period of phase III, make the sampled data of acquisition more accurate, more close to True Data, improve test accuracy.
Accompanying drawing explanation
Fig. 1 is the test bed schematic diagram of brake load moment of the present invention;
Fig. 2 is the schematic diagram of the test bed middle braked wheel of brake load moment of the present invention and ratchet;
Fig. 3 is No. I partial enlarged drawing in Fig. 2;
Fig. 4 is the structured flowchart of test macro of the present invention;
Fig. 5 is the process flow diagram of method of testing of the present invention.
Description of reference numerals:
100. braked wheels, 101. ratchets, 1011. first flank of tooth, 1012. second flank of tooth, 1013. the 3rd flank of tooth, 102. braked wheel wheel faces, 200. ratchets, 201. pawl bases, 202. contiguous blocks, 300. driving wheels, 400. first drive units, 500. second drive units, 600. frames, 601. movable stands, 602. fixed mounts, 700. reducing gears, 701. reducing gear input shafts, 702. reducing gear output shafts, 800. chains, 900. torque sensors.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail:
As Figure 1-3, in an embodiment of the present invention, a kind of brake load moment is test bed, comprise braked wheel 100, ratchet 200, driving wheel 300, first drive unit 400, second drive unit 500, frame 600, driving wheel 300, braked wheel 100 is all installed in frame 600, first drive unit 400 is for driving driving wheel 300, braked wheel 100 is fixedly connected with driving wheel 300, braked wheel 100 is provided with ratchet 101, ratchet 200 matches with ratchet 101, second drive unit 500 is for driving ratchet 200, during braking, ratchet 200 one end conflict ratchet 101, braked wheel 100 and driving wheel 300 are coaxially installed.
First drive unit 400 drives driving wheel 300 to rotate, moment is provided for driving wheel 300 rotates, the moment that the first drive unit 400 just can be made to export by the output torque controlling the first drive unit 400 is consistent with real escalator driving moment, braked wheel 100 is fixedly connected with driving wheel 300, after braked wheel 100 is braked, driving wheel 300 stops operating accordingly, when ratchet 200 conflicts the ratchet 101 arriving braked wheel 100, for on-position, by controlling the second drive unit 500, ratchet 200 is driven to move, after ratchet 200 moves to certain position, conflict ratchet 101 on braked wheel 100 time, braked wheel 100 is braked, the braked wheel 100 be braked stops operating, thus realize escalator braking procedure that is virtually reality like reality, adopt this device, do not need to carry out scene braking test to escalator apparatus, only need by simulating the real operational process of escalator on the apparatus, just corresponding experimental data can be obtained, reduce in-site installation, debugging efforts, improve debugging efficiency, and stop the potential safety hazard that on-the-spot test brings.
Brake load moment is test bed also comprises reducing gear 700, torque sensor 900, first drive unit 400 is motor, and the first drive unit 400 is threephase asynchronous machine in the present embodiment.First drive unit output shaft connects reducing gear input shaft 701, and reducing gear output shaft 702 connects driving wheel 300.The moment of the first drive unit 400 can be improved by reducing gear 700, thus driving wheel 300 just can be made to obtain larger moment when the first drive unit 400 can be made to export less moment.Torque sensor 900 is installed between the first drive unit 400 and reducing gear 700, for obtaining the output torque of the first drive unit 400.
As shown in Figure 1, frame 600 comprises movable stand 601, fixed mount 602, movable stand 601 is slidably installed on fixed mount 602, and the first drive unit 400, reducing gear 700 are installed on movable stand 601, and the moving direction of movable stand 601 parallels with the axis of driving wheel 300.First drive unit 400, reducing gear 700 are installed on can relative on the movable stand 601 of fixed mount 602 movement, by regulating the position of movable stand 601, just can adjust the distance in reducing gear output shaft 702 axle center and driving wheel 300 axle center, thus make that same brake load moment is test bed can to the escalator of different centre distance, improve the utilization factor of equipment, reduce cost.In the present embodiment, reducing gear output shaft 702 is connected with driving wheel 300 by chain 800.Movable stand 601, fixed mount 602 are welded by section bar.Movable stand 601, fixed mount 602 are all more firm by section bar welded structure, and weight is lighter.
As shown in Figure 2, ratchet 101 comprises first flank of tooth 1011, second flank of tooth 1012, 3rd flank of tooth 1013, first flank of tooth 1011, second flank of tooth 1012, 3rd flank of tooth 1013 connects successively, first flank of tooth 1011 extends to the 3rd flank of tooth 1013 direction from braked wheel wheel face 102, 3rd flank of tooth 1013 extends to the first flank of tooth 1011 direction from braked wheel wheel face 102, second flank of tooth 1012 is between first flank of tooth 1011 and the 3rd flank of tooth 1013, the first angle is become between first flank of tooth 1011 with the tangent plane of the first flank of tooth 1011 section start braked wheel wheel face 102, the second angle is become between 3rd flank of tooth 1013 with the tangent plane of the 3rd flank of tooth 1013 section start braked wheel wheel face 102, first angle second angle is acute angle, the angle of the first angle is less than the 3rd angle.Adopt ratchet 200 in this way and can better withstand ratchet 101.In the present embodiment, first flank of tooth 1011, second flank of tooth 1012, the 3rd flank of tooth 1012 can be all plane.In other embodiments, first flank of tooth, second flank of tooth, the 3rd flank of tooth can also be cambered surface, or first flank of tooth, second flank of tooth, the 3rd flank of tooth are the mixing of plane and cambered surface.
As shown in Figure 2,3, brake load moment is test bed also comprises pawl base 201, contiguous block 202, and ratchet 200 is rotating to be installed on pawl base 201.Contiguous block 202 one end is connected with the second drive unit 500 output shaft, and the other end is rotatable to be installed on pawl base 201, and described ratchet 200 is fixedly connected with contiguous block 202.
As shown in Figure 4, the test macro that the present invention also provides a kind of above-mentioned brake load moment test bed, comprise PLC, display module, torque sensor, PLC is electrically connected with the first drive unit, the second drive unit, display module, torque sensor respectively, and torque sensor and the first drive unit are electrically connected.PLC monitors the first drive unit, the second drive unit, torque sensor obtains the output torque of the first drive unit, and the moment of torsion got is sent to PLC and carries out analyzing, processing, data after process are sent to display module by PLC, these data are shown as curve by display module, are convenient to user and observe intuitively.In the present embodiment, display module is computing machine.
Test macro also comprises signal input module, and signal input module and PLC are electrically connected.Signal input module facilitates user to change corresponding parameter.
Computing machine is connected with printer.The existence of printer is convenient to user and the curve of display or other numerical value is printed.
As shown in Figure 5, the present invention also provides a kind of method of testing, gathers a secondary data at interval of time t1 torque sensor, and PLC judges whether the absolute value of adjacent twice data difference collected is greater than X;
Be judged as NO, then continue according to t1 time interval image data;
Be judged as YES, then the data collection interval of torque sensor be adjusted to t2;
After the data collection interval of torque sensor is adjusted to t2, PLC continues to judge whether the absolute value of adjacent twice data difference collected is less than Y;
Be judged as NO, then continue according to t2 time interval image data;
Be judged as YES, then the data collection interval of torque sensor be adjusted to t3, t1 > t2 > t3.
Preferably, the data analysis that described PLC collects after torque sensor sampling time interval is adjusted to t3 calculates and draws moment of torsion mean value, and this moment of torsion mean value shows on display module.
Preferably, described display module data genaration curve that torque sensor is collected showing.
Preferably, described t1 is 0.4-0.5 second.
Preferably, described t2 is 0.2-0.3 second.
Preferably, described t3 is 0.1-0.2 second.
Preferably, described X is 8kgfm.
Preferably, described Y is 8kgfm.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a brake load moment is test bed, it is characterized in that, comprise braked wheel, ratchet, driving wheel, the first drive unit, the second drive unit, frame, driving wheel, braked wheel are all installed in frame, and the first drive unit is for driving driving wheel, braked wheel is fixedly connected with driving wheel, braked wheel is provided with ratchet, and ratchet matches with ratchet, and the second drive unit is for driving ratchet, during braking, ratchet one end conflict ratchet.
2. brake load moment according to claim 1 is test bed, it is characterized in that, also comprise reducing gear, described first drive unit is motor, first drive unit output shaft connects reducing gear input shaft, and reducing gear output shaft connects driving wheel.
3. brake load moment according to claim 2 is test bed, it is characterized in that, described frame comprises movable stand, fixed mount, movable stand is slidably installed on fixed mount, described first drive unit, reducing gear are installed on movable stand, and the moving direction of described movable stand parallels with the axis of described driving wheel.
4. the test macro that brake load moment is test bed as described in any one of claim 1-3, it is characterized in that, comprise PLC, display module, torque sensor, PLC is electrically connected with the first drive unit, the second drive unit, display module, torque sensor respectively, and torque sensor and the first drive unit are electrically connected.
5. test macro according to claim 4, is characterized in that, also comprises signal input module, and signal input module and PLC are electrically connected.
6. a method of testing for brake load moment, is characterized in that, gathers a secondary data at interval of time t1 torque sensor, and PLC judges whether the absolute value of adjacent twice data difference collected is greater than X, and X is moment values;
Be judged as NO, then continue according to t1 time interval image data;
Be judged as YES, then the data collection interval of torque sensor be adjusted to t2;
After the data collection interval of torque sensor is adjusted to t2, PLC continues to judge whether the absolute value of adjacent twice data difference collected is less than Y, and Y is moment values;
Be judged as NO, then continue according to t2 time interval image data;
Be judged as YES, then the data collection interval of torque sensor be adjusted to t3, t1 > t2 > t3.
7. method of testing according to claim 6, is characterized in that, the data analysis that described PLC collects after torque sensor sampling time interval is adjusted to t3 calculates and draws moment of torsion mean value, and this moment of torsion mean value shows on display module.
8. method of testing according to claim 7, is characterized in that, the data genaration curve that torque sensor collects by described display module also shows.
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| CN201310441589.4A CN103512695B (en) | 2013-09-25 | 2013-09-25 | Testing table, testing system and testing method for brake load moment of brake |
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| CN201310441589.4A CN103512695B (en) | 2013-09-25 | 2013-09-25 | Testing table, testing system and testing method for brake load moment of brake |
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| CN103512695B true CN103512695B (en) | 2015-05-27 |
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| DE102014116714B3 (en) * | 2014-11-14 | 2016-02-25 | CS GmbH & Co. KG | Bremsenprüfstand |
| CN107389242B (en) * | 2017-07-21 | 2023-09-29 | 佛山市广津机电设备有限公司 | Escalator main drive shaft braking torque testing machine and testing method |
| CN110530621A (en) * | 2019-08-27 | 2019-12-03 | 苏州新达电扶梯部件有限公司 | A kind of escalator auxiliary brake torque test stand |
| CN112539867A (en) * | 2020-12-08 | 2021-03-23 | 日立电梯（广州）自动扶梯有限公司 | Additional brake moment test equipment |
| CN114235431B (en) * | 2021-11-10 | 2023-09-08 | 中国煤炭科工集团太原研究院有限公司 | Wet brake testing method and test bed for long-distance heavy-gradient working condition |
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| NZ196208A (en) * | 1980-02-19 | 1986-01-24 | Rainsfords Met Prod | Acceleration sensor for inertia reel seat belts using tilting weight |
| US5343134A (en) * | 1993-05-03 | 1994-08-30 | Harnischfeger Corporation | Method for checking brake torque |
| JP3817218B2 (en) * | 2002-11-20 | 2006-09-06 | 三菱電機ビルテクノサービス株式会社 | Elevator brake torque measuring device and measuring method |
| CN1253703C (en) * | 2003-10-14 | 2006-04-26 | 曾晓东 | Brake force moment measuring device and method |
| CN100484858C (en) * | 2006-06-20 | 2009-05-06 | 上海市建筑科学研究院科技发展总公司 | Automatic detecting and testing system for tripper |
| CN201974264U (en) * | 2010-12-30 | 2011-09-14 | 安徽工程大学 | Brake moment detecting system of slowdown clutch |
| CN102654431B (en) * | 2012-05-05 | 2014-11-05 | 中国重型机械研究院有限公司 | Brake tester with combination of mechanical analogue and electric inertia analogue and control algorithm |
| CN102706506B (en) * | 2012-06-21 | 2013-11-13 | 江苏省特种设备安全监督检验研究院无锡分院 | Comprehensive performance testing device for safety brake |
| CN202676350U (en) * | 2012-06-21 | 2013-01-16 | 江苏省特种设备安全监督检验研究院无锡分院 | Apparatus for testing static braking moment of brake |
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Address after: Nanxiang three road, Science City high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 2 510660 Patentee after: Hitachi building technologies (Guangzhou) Co. Ltd. Address before: Nanxiang Road three Guangzhou Science City 510660 high tech Industrial Development Zone, Guangdong city of Guangzhou province No. 2 Patentee before: Guangzhou Ropente Science and Technology Development Co., Ltd. |