CN108181519A - A kind of method of dynamic test elevator traction machine contracting brake - Google Patents
A kind of method of dynamic test elevator traction machine contracting brake Download PDFInfo
- Publication number
- CN108181519A CN108181519A CN201711183116.3A CN201711183116A CN108181519A CN 108181519 A CN108181519 A CN 108181519A CN 201711183116 A CN201711183116 A CN 201711183116A CN 108181519 A CN108181519 A CN 108181519A
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- brake
- torque
- load motor
- speed
- traction machine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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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
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The present invention provides a kind of dynamic test elevator traction machine contracting brake method, including：Load motor permanent torque towing test model machine, experimental prototype brake guaranties are opened, motor no power；Cut off brake power supply, brake release；Load motor is with permanent torque input mode, and for transient speed value with being provided according to calculating, the torque value that torque sensor currently tests feedback participates in formula calculating；Cut-out load motor output when rotating speed is 0；Record preserves braking moment curve, speed curves, braking deceleration curve, braking distance curve.Technical scheme of the present invention tests traction machine band-type brake dynamic process using measurement, supercomputing, high speed dynamic response means at a high speed, simulant elevator stop process.Easy to adjust, data are reliable.
Description
Technical field
The present invention relates to elevator safety detection field, more particularly to a kind of dynamic test elevator traction machine contracting brake
Method.
Background technology
Elevator traction machine is the power-equipment of elevator, also known as elevator host, and function is that conveying transports elevator with passing power
Row, important function is unquestionable, and band-type brake as a part for elevator traction machine be the elevator safety component that acts frequently it
One.
When elevator traction machine is powered, band-type brake unclamps, and lift car can move, in the case where no power supply is supplied,
Band-type brake obvolvent makes car effectively stop.
The working condition of elevator safety work and band-type brake is closely related.Lot of accident case shows that the elevator person is hindered
It is exactly that band-type brake breaks down or itself is there are design defect to die one of the main reason for accident occurs, so as to cause elevator appearance
, Dun bottom, the car slipping of rushing to summit or even phenomena such as shear.Therefore, the safety verification for strengthening band-type brake is particularly important.
The method of test elevator traction machine contracting brake is very single in the art, generally use flywheel method test electricity
Terraced traction machine contracting brake, there are the drawbacks of flywheel difficulty of processing is big, and accuracy is low for this method
Technical solution in the present invention is using measurement, supercomputing, high speed dynamic response means at a high speed, simulant elevator stop
Process tests traction machine band-type brake dynamic process.Easy to adjust, data are reliable.
The background information of the open present invention is intended to increase the understanding of the general background to the present invention, understands the present invention and is different from
The prior art well known to persons skilled in the art.
Invention content
The purpose of the present invention is to provide a kind of methods of dynamic test elevator traction machine contracting brake.
The present invention provides a kind of methods of dynamic test elevator traction machine contracting brake, which is characterized in that including：
Load motor permanent torque towing test model machine, experimental prototype brake guaranties are opened, motor no power；
Cut off brake power supply, brake release；
Load motor is with permanent torque input mode, and transient speed value with being provided according to calculating, currently test by torque sensor
The torque value of feedback participates in formula calculating；
Cut-out load motor output when rotating speed is 0；
Record preserves braking moment curve, speed curves, braking deceleration curve, braking distance curve.
In this method, in the load motor permanent torque towing test model machine, the permanent torque of the load motor
More than brake sticking brake torque.
In this method, in the load motor permanent torque towing test model machine, the towing test model machine is set
For normal speed or setting speed.
In this method, in the load motor with permanent torque input mode, transient speed value according to calculating with providing, torque
When the torque value that sensor currently tests feedback participates in formula calculating, the instantaneous time is less than brake actuation time.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and is obtained in book, claims and attached drawing.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Example is applied together for explaining the present invention, is not construed as limiting the invention.
Fig. 1 is the flow chart that elevator traction machine contracting brake method is dynamically tested in the embodiment of the present invention；
Fig. 2 is the schematic diagram that elevator traction machine contracting brake environment is dynamically tested in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield range is not restricted by specific implementation.
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts shall fall within the protection scope of the present invention.Unless
Separately have it is other explicitly indicate that, otherwise in entire disclosure and claims, term " comprising " or its transformation such as "comprising" or
" including " etc. will be understood to comprise stated element or component, and not exclude other elements or other compositions
Part.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details is given in specific embodiment below.
It will be appreciated by those skilled in the art that without certain details, the present invention can equally be implemented.In some instances, for
Method well known to those skilled in the art, means, element are not described in detail, in order to highlight the purport of the present invention.
Fig. 1 is the flow chart of this method, 1 the dynamic test elevator traction machine band-type brake system is described in detail below in conjunction with the accompanying drawings
The specific steps of the method for dynamic device.
Technical scheme of the present invention, by brake dynamic brake test to elevator traction machine contracting brake into Mobile state
Test.
Wherein, it accompanies under examination motor simulation elevator cars with full load downlink or unloaded escalator up power-off condition, brake is to traction machine
Brake condition.
Specific test process is as follows：
Load motor permanent torque (being more than brake sticking brake torque) towing test model machine (corresponding normal speed or setting speed
Degree), experimental prototype brake guaranties are opened, motor no power；
Cut off brake power supply, brake release；
Load motor is with permanent torque input mode, and transient speed value with being provided according to calculating, currently test by torque sensor
The torque value of feedback participates in formula and calculates (moment has to be less than brake actuation time)；
The output of cut-out load motor, test process terminate when rotating speed is 0；
Record preserves braking moment curve, speed curves, braking deceleration curve, braking distance curve.
After obtaining above-mentioned test result, typing, wherein experimental prototype rotary inertia J are carried out to parameterExperiment, elevator device turn
Dynamic inertia JSystem, do not consider in formula.
Other need the parameter of typing to be：Car dead weight P, counterweight dead weight W, nominal load capacity Q, traction wheel diameter D, suspension
Compare iSuspension ratio, elevator speed V.
Wherein, it is obtained according to the conservation of energy：
1/2*mWeight and*(Vt-1 2-Vt 2)+mWeight difference*g*SRope/iSuspension ratio=FRope system*SRopeKinetic energy+potential energy=total work
SRope=SLadder*iSuspension ratio
1/2*mWeight and*(Vt-1 2-Vt 2)+mWeight difference*g*SLadder=FRope system*SLadder*iSuspension ratioAfter conversion
1/2*mWeight and*(Vt-1 2-Vt 2)=(FRope system*iSuspension ratio-mWeight difference*g)SLadderAfter conversion
FRope system=TSystem/(D/2)
S=V*t
VIt is average=1/2 (Vt-1+Vt)
1/2*mWeight and*(Vt-1 2-Vt 2)=(TSystem/(D/2)*iSuspension ratio-mWeight difference*g)*1/2*(Vt-1+Vt)*t
1/2*mWeight and*(Vt-1+Vt)(Vt-1-Vt)=(TSystem/(D/2)*iSuspension ratio-mWeight difference*g)*1/2*(Vt-1+Vt)*tmWeight and*
(Vt-1-Vt)=(TSystem/(D/2)*iSuspension ratio-mWeight difference*g)*t
(Vt-1-Vt)/t=(TSystem/(D/2)*iSuspension ratio-mWeight difference*g)/mWeight and=aLadder
mWeight and=W+P mWeight difference=W-P zero load uplinks
mWeight and=W+P+Q mWeight difference=P+Q-W is fully loaded with downlink
Wherein, load motor output speed variation function is：
aLadder=(TSystem/(D/2)*iSuspension ratio(W-P) * g)/(W+P) unloaded uplink
aLadder=(TSystem/(D/2)*iSuspension ratio(P+Q-W) * g)/(W+P+Q) fully loaded downlink
Wherein, TSystemThe torque value of feedback, a are currently tested for torque sensorLadderFor percentage speed variation, the sampling time is multiplied by,
The as velocity variations value in sampling time.
Wherein, load motor response frequency：
Sample TI processed→ load motor is from Vt-1It exports to VtTime difference no more than 0.02s.
Wherein, data curve of output：
TSystemCurve (torque sensor provides), speed curves (torque sensor provides), braking deceleration curve a (torques
Numerical value is calculated according to formula), braking distance curve (braking deceleration curve integration).
Device described above, embodiment are with locality, wherein the unit illustrated as component home can
To be or may not be physical unit, you can be located at a place or can also be distributed in multiple network element.
Some or all of module therein can be selected according to the actual needs to realize the purpose of this embodiment scheme.This field is general
Logical technical staff is not in the case where paying performing creative labour, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
Technical solution is stated substantially in other words to embody the part that the prior art contributes in the form of software product, it should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and (can be personal computer, server or the network equipment etc.) so that computer equipment is used to perform each implementation
Method described in certain parts of example or embodiment.
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed formal, and it will be apparent that according to above-mentioned principle embodiment, can have very much
Change and variation.The purpose of selecting and describing the exemplary embodiment is that explain the specific principle and its reality of the present invention
Using so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementations with
And various chooses and changes.All within the spirits and principles of the present invention, any modification for being made, changes equivalent replacement
Into etc., it should all be included in the protection scope of the present invention.
Claims (4)
- A kind of 1. method of dynamic test elevator traction machine contracting brake, which is characterized in that including：Load motor permanent torque towing test model machine, experimental prototype brake guaranties are opened, motor no power；Cut off brake power supply, brake release；Load motor is with permanent torque input mode, and for transient speed value with being provided according to calculating, torque sensor currently tests feedback Torque value participate in formula calculating；Cut-out load motor output when rotating speed is 0；Record preserves braking moment curve, speed curves, braking deceleration curve, braking distance curve.
- 2. according to the method described in claim 1, it is characterized in that, during the load motor permanent torque towing test model machine,The permanent torque of the load motor is more than brake sticking brake torque.
- 3. according to the method described in claim 1, it is characterized in that, during the load motor permanent torque towing test model machine,The towing test model machine is set to normal speed or setting speed.
- 4. according to the method described in claim 1, it is characterized in that, the load motor with permanent torque input mode, instantaneously Tachometer value according to calculating with providing, when the torque value that torque sensor currently tests feedback participates in formula calculating,The instantaneous time is less than brake actuation time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183116.3A CN108181519B (en) | 2017-11-23 | 2017-11-23 | Method for dynamically testing band-type brake of elevator traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183116.3A CN108181519B (en) | 2017-11-23 | 2017-11-23 | Method for dynamically testing band-type brake of elevator traction machine |
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| Publication Number | Publication Date |
|---|---|
| CN108181519A true CN108181519A (en) | 2018-06-19 |
| CN108181519B CN108181519B (en) | 2020-09-18 |
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|---|---|---|---|
| CN201711183116.3A Active CN108181519B (en) | 2017-11-23 | 2017-11-23 | Method for dynamically testing band-type brake of elevator traction machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110540117A (en) * | 2019-04-03 | 2019-12-06 | 浙江梅轮电梯股份有限公司 | remote testing device for machine-room-less brake |
| CN113148793A (en) * | 2021-04-20 | 2021-07-23 | 建研机械检验检测(北京)有限公司 | Protection device for accidental movement of lift car and test method thereof |
| CN113776804A (en) * | 2021-09-22 | 2021-12-10 | 日立电梯电机（广州）有限公司 | Dynamic life test method for brake |
| CN114035044A (en) * | 2021-10-26 | 2022-02-11 | 日立楼宇技术（广州）有限公司 | Method, system, device and medium for testing rated load of motor |
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| CN113148793A (en) * | 2021-04-20 | 2021-07-23 | 建研机械检验检测(北京)有限公司 | Protection device for accidental movement of lift car and test method thereof |
| CN113776804A (en) * | 2021-09-22 | 2021-12-10 | 日立电梯电机（广州）有限公司 | Dynamic life test method for brake |
| CN114035044A (en) * | 2021-10-26 | 2022-02-11 | 日立楼宇技术（广州）有限公司 | Method, system, device and medium for testing rated load of motor |
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Inventor after: EN Wang Inventor after: Lu Yunfei Inventor after: Xia Xuetao Inventor after: Wu Jichao Inventor after: Wei Feng Inventor after: Li Chen Inventor before: EN Wang Inventor before: Lu Yunfei Inventor before: Xia Xuetao Inventor before: Wu Jichao Inventor before: Wei Feng Inventor before: Li Chen |
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Effective date of registration: 20201211 Address after: Room 405, No.2 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Jianyan machinery inspection and testing (Beijing) Co., Ltd Patentee after: Kembo Information Technology Co., Ltd Patentee after: BEIJING BUILDING MECHANIZATION RESEARCH INSTITUTE Co.,Ltd. Address before: 065000 Langfang golden city of Hebei province Guangyang District Road No. 61 Patentee before: CABR CONSTRUCTION MACHINERY TECHNOLOGY Co.,Ltd. |