CN102689826A - Method and system for detecting balance coefficient of elevator on basis of frequency converter - Google Patents
Method and system for detecting balance coefficient of elevator on basis of frequency converter Download PDFInfo
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- CN102689826A CN102689826A CN2012101782257A CN201210178225A CN102689826A CN 102689826 A CN102689826 A CN 102689826A CN 2012101782257 A CN2012101782257 A CN 2012101782257A CN 201210178225 A CN201210178225 A CN 201210178225A CN 102689826 A CN102689826 A CN 102689826A
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Abstract
The invention relates to a method and a system for detecting a balance coefficient of an elevator on the basis of a frequency converter. The method includes the following steps of acquiring an output torque value of a tractor when suspension points of an elevator car and a counter weight are horizontally aligned to each other in static state, and calculating the balance coefficient of the elevator by the aid of the output torque value. The detection of balance coefficient can be completed by just controlling the elevator to run in a state in which the elevator car is horizontally aligned to the counter weight, and the detection is simple in operation process, short in operation time, high in efficiency, and extremely high in precision since the detection is completed under the static state of the elevator.
Description
Technical field
The present invention relates to elevator detection technique field, particularly relate to a kind of balance coefficient of elevator method of inspection based on frequency converter, and a kind of balance coefficient of elevator checking system based on frequency converter.
Background technology
Balance coefficient of elevator is one of important parameter of lift facility safety verification.Traditional measurement method of the equilibrium factor of installation and operation elevator has:
One, applies the load of Different Weight respectively to elevator; Measure ascending for elevator under the different loads situation then respectively, when descending; Voltage, the current value of traction motor when car and counterweight are in same level attitude, and then through calculating and mapping obtains balance coefficient of elevator;
Two, band-type brake is opened in manual work, use Elevator weight sensor that measurements of special measurement instrument be in free state to the pressure of energy disperser and the car after applying a fixed load to the pressure of energy disperser, calculate the weight of counterweight and car, and then the reckoning equilibrium factor;
Three, use special testing tool, the measuring steel wire rope tension is calculated equilibrium factor;
Four, use Frequency Converter Control elevator uplink and downlink, when car and counterweight are in same level attitude, detection record towing machine torque in real time, and through calculating the acquisition equilibrium factor.
Said method one, two, three all need use extra measuring equipment, and what have also need repeatedly carry counterweight, and complicated operation is wasted time and energy; Though method four need not used extras; But need to detect in real time the towing machine torque in a certain moment, detection difficult assurance on opportunity, operation easier is bigger; And owing to be dynamic measurement in the rotation process of towing machine; Fluctuation and vibrations generally can take place in the speed of elevator, and mechanical friction power also is difficult to confirm that survey precision is lower.
Summary of the invention
Based on this, the present invention provides a kind of balance coefficient of elevator method of inspection based on frequency converter, and a need control elevator runs to car and the counterweight horizontal alignment can be accomplished detection, and testing process is simple to operate, the operating time is short, efficient is high; Detection is under the elevator quiescence, to carry out, and accuracy of detection is very high.
Another object of the present invention also is to provide the realization system for carrying out said process.
A kind of balance coefficient of elevator method of inspection based on frequency converter comprises the steps:
Obtain the hitch point horizontal alignment and the output torque value of elevator traction machine when static of hitch point and the counterweight of lift car;
Utilize said output torque value, calculate balance coefficient of elevator.
Therein among embodiment, the step of the output torque value of the hitch point horizontal alignment of said hitch point that obtains lift car and counterweight and the elevator traction machine when static specifically comprises:
The hitch point that the control elevator runs to lift car is during with the position of the hitch point horizontal alignment of counterweight, and it is out of service to control elevator;
Utilize frequency converter to obtain the output torque value of said elevator traction machine.
Therein among embodiment, saidly utilize said output torque value, the step of calculating balance coefficient of elevator specifically comprises:
Utilize said output torque value; Calculate said balance coefficient of elevator through balance coefficient of elevator calculating formula K=(2*T*N)/(g*D*Q), wherein K is said balance coefficient of elevator, and T is said output torque value; N is a reduction ratio; G is a gravity acceleration value, and D is the traction sheave diameter of the towing machine of said elevator, and Q is the base load rating of said elevator.
A kind of balance coefficient of elevator checking system based on frequency converter comprises acquisition module and computing module:
Said acquisition module is used to obtain the hitch point horizontal alignment and the output torque value of elevator traction machine when static of hitch point and the counterweight of lift car;
Said computing module is used for the said output torque value according to said acquisition module, calculates balance coefficient of elevator.
Among embodiment, said acquisition module comprises control module and moment values acquisition module therein;
When said control module was used to control elevator and runs to the position of hitch point horizontal alignment of hitch point and counterweight of lift car, the control elevator was out of service;
Said moment values acquisition module is used to utilize frequency converter to obtain the output torque value of said elevator traction machine.
Among embodiment, said computing module also is used for therein:
Utilize said output torque value; Calculate said balance coefficient of elevator through balance coefficient of elevator calculating formula K=(2*T*N)/(g*D*Q), wherein K is said balance coefficient of elevator, and T is said output torque value; N is a reduction ratio; G is a gravity acceleration value, and D is the traction sheave diameter of the towing machine of said elevator, and Q is the base load rating of said elevator.
The present invention only need control the position of hitch point horizontal alignment that elevator runs to hitch point and the counterweight of lift car and can detect, and testing process is simple to operate, the operating time is short, efficient is high; Run to the position of car and counterweight horizontal alignment at elevator after; The control elevator is out of service; Car and counterweight keep after the quiescence output torque value of towing machine is detected again; Testing process has compared with prior art been got rid of towing machine speed fluctuations, mechanical vibration and mechanical friction power and has been changed the interference that brings, and has improved the precision that equilibrium factor is measured greatly.
Description of drawings
Fig. 1 is a kind of balance coefficient of elevator method of inspection schematic flow sheet in one embodiment based on frequency converter of the present invention.
Fig. 2 is a kind of balance coefficient of elevator checking system structural representation in one embodiment based on frequency converter of the present invention.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is done further explain, but embodiment of the present invention is not limited thereto.
As shown in Figure 1 is the schematic flow sheet of a kind of balance coefficient of elevator method of inspection based on frequency converter of the present invention, and this method of inspection step is following:
The output torque value of the elevator traction machine when the hitch point horizontal alignment of S11, the hitch point that obtains lift car and counterweight is also static;
In a preferred embodiment,, specifically can comprise for S11:
The control elevator runs to the position of hitch point horizontal alignment of hitch point and the counterweight of lift car; Elevator special converter capable of using, operating personal can be provided with the parameter of elevator earlier during detection through the input media of frequency converter, then can be through the towing machine running of Frequency Converter Control elevator; This moment, band-type brake was opened, the towing machine running, and lift car brings into operation; When the hitch point of the hitch point of lift car and counterweight was in same level attitude, operating personal can stop the towing machine operation through frequency converter, and band-type brake is closed simultaneously; Elevator is out of service, and this moment, lift car and counterweight were in same level attitude;
Utilize frequency converter to obtain the output torque value of said elevator traction machine; Behind lift car and the counterweight horizontal alignment; Operating personal may command frequency converter gets into the balance coefficient of elevator measurement pattern; This moment, band-type brake was opened; Frequency converter fast control towing machine output torque makes lift car and counterweight keep static, and the demonstration output unit of frequency converter can show the output torque value of towing machine;
In this step, the position of hitch point horizontal alignment that only need utilize the Frequency Converter Control elevator to run to hitch point and the counterweight of lift car can be detected, and testing process is simple to operate, the operating time is short, efficient is high; Detection is under the elevator quiescence, to carry out, and accuracy of detection improves greatly;
S12, utilize said output torque value, calculate balance coefficient of elevator;
In a preferred embodiment,, can specifically comprise for S12:
Utilize said output torque value,, calculate said balance coefficient of elevator through balance coefficient of elevator calculating formula K=(2*T*N)/(g*D*Q) according to the physics law of elevator operation; Wherein, K is said balance coefficient of elevator, and T is said output torque value, and N is a reduction ratio, and g is a gravity acceleration value, and D is the traction sheave diameter of the towing machine of said elevator, and Q is the base load rating of said elevator; The calculating of balance coefficient of elevator can be calculated after frequency converter gets access to the output torque value in advance to frequency converter input test instruction automatically, and the output unit output through frequency converter gets final product again.
As shown in Figure 2, be a kind of balance coefficient of elevator checking system structural representation in one embodiment of the present invention based on frequency converter, comprise acquisition module 21 and computing module 22:
Said acquisition module 21 is used to obtain the hitch point horizontal alignment and the output torque value of elevator traction machine when static of hitch point and the counterweight of lift car;
Said computing module 22 is used for the said output torque value according to said acquisition module, calculates balance coefficient of elevator.
Among embodiment, said acquisition module 21 comprises control module and moment values acquisition module therein;
When said control module was used to control elevator and runs to the position of hitch point horizontal alignment of hitch point and counterweight of lift car, the control elevator was out of service;
Said moment values acquisition module is used to utilize frequency converter to obtain the output torque value of said elevator traction machine.
Among embodiment, said computing module 22 also is used for therein:
Utilize said output torque value; Calculate said balance coefficient of elevator through balance coefficient of elevator calculating formula K=(2*T*N)/(g*D*Q), wherein K is said balance coefficient of elevator, and T is said output torque value; N is a reduction ratio; G is a gravity acceleration value, and D is the traction sheave diameter of the towing machine of said elevator, and Q is the base load rating of said elevator.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, 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 accompanying claims.
Claims (6)
1. the balance coefficient of elevator method of inspection based on frequency converter is characterized in that, comprises the steps:
Obtain the hitch point horizontal alignment and the output torque value of elevator traction machine when static of hitch point and the counterweight of lift car;
Utilize said output torque value, calculate balance coefficient of elevator.
2. the balance coefficient of elevator method of inspection based on frequency converter according to claim 1 is characterized in that, the step of the output torque value of the hitch point horizontal alignment of said hitch point that obtains lift car and counterweight and the elevator traction machine when static specifically comprises:
The hitch point that the control elevator runs to lift car is during with the position of the hitch point horizontal alignment of counterweight, and it is out of service to control elevator;
Utilize frequency converter to obtain the output torque value of said elevator traction machine.
3. the balance coefficient of elevator method of inspection based on frequency converter according to claim 1 is characterized in that, saidly utilizes said output torque value, and the step of calculating balance coefficient of elevator specifically comprises:
Utilize said output torque value; Calculate said balance coefficient of elevator through balance coefficient of elevator calculating formula K=(2*T*N)/(g*D*Q), wherein K is said balance coefficient of elevator, and T is said output torque value; N is a reduction ratio; G is a gravity acceleration value, and D is the traction sheave diameter of the towing machine of said elevator, and Q is the base load rating of said elevator.
4. the balance coefficient of elevator checking system based on frequency converter is characterized in that, comprises acquisition module and computing module:
Said acquisition module is used to obtain the hitch point horizontal alignment and the output torque value of elevator traction machine when static of hitch point and the counterweight of lift car;
Said computing module is used for the said output torque value according to said acquisition module, calculates balance coefficient of elevator.
5. the balance coefficient of elevator checking system based on frequency converter according to claim 4 is characterized in that said acquisition module comprises control module and moment values acquisition module;
During the position of the hitch point that said control module is used to utilize the Frequency Converter Control elevator to run to lift car and the hitch point horizontal alignment of counterweight, the control elevator is out of service;
Said moment values acquisition module is used to utilize frequency converter to obtain the output torque value of said elevator traction machine.
6. the balance coefficient of elevator checking system based on frequency converter according to claim 4 is characterized in that said computing module also is used for:
Utilize said output torque value; Calculate said balance coefficient of elevator through balance coefficient of elevator calculating formula K=(2*T*N)/(g*D*Q), wherein K is said balance coefficient of elevator, and T is said output torque value; N is a reduction ratio; G is a gravity acceleration value, and D is the traction sheave diameter of the towing machine of said elevator, and Q is the base load rating of said elevator.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145015A (en) * | 2013-01-30 | 2013-06-12 | 深圳市海浦蒙特科技有限公司 | Elevator balance coefficient detection method |
| CN103274273A (en) * | 2013-04-10 | 2013-09-04 | 深圳市海浦蒙特科技有限公司 | Elevator overload detection method |
| CN104118781A (en) * | 2014-07-08 | 2014-10-29 | 上海新时达电气股份有限公司 | Method for determining balance coefficient |
| CN105502116A (en) * | 2014-10-15 | 2016-04-20 | 江南嘉捷电梯股份有限公司 | Method used for measuring balance coefficient of elevator |
| CN105540370A (en) * | 2015-12-17 | 2016-05-04 | 中联重科股份有限公司 | Elevator safety monitoring device, system and method, and elevator |
| CN105752785A (en) * | 2016-04-13 | 2016-07-13 | 苏州汇川技术有限公司 | System and method for detecting elevator balance coefficient |
| CN105905724A (en) * | 2016-06-16 | 2016-08-31 | 广州广日电梯工业有限公司 | Detection method and device for elevator balance coefficient |
| CN106348117A (en) * | 2016-11-18 | 2017-01-25 | 广州日滨科技发展有限公司 | Calculation method and device of elevator equilibrium coefficient |
| CN107458940A (en) * | 2017-09-12 | 2017-12-12 | 上海辛格林纳新时达电机有限公司 | A kind of method, apparatus and frequency converter for determining balance coefficient of elevator |
| CN109896378A (en) * | 2017-12-11 | 2019-06-18 | 日立楼宇技术（广州）有限公司 | Monitoring method, device, elevator control cabinet, system, equipment and storage medium |
| CN111824888A (en) * | 2020-08-13 | 2020-10-27 | 苏州汇川技术有限公司 | Elevator balance coefficient detection method and device, elevator and computer storage medium |
| CN113148791A (en) * | 2021-03-31 | 2021-07-23 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Rapid calculation method for elevator balance coefficient |
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| JP2000255927A (en) * | 1999-03-11 | 2000-09-19 | Hitachi Building Systems Co Ltd | Balance point computing method for elevator cage |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145015B (en) * | 2013-01-30 | 2015-09-30 | 深圳市海浦蒙特科技有限公司 | The method of inspection of balance coefficient of elevator |
| CN103145015A (en) * | 2013-01-30 | 2013-06-12 | 深圳市海浦蒙特科技有限公司 | Elevator balance coefficient detection method |
| CN103274273A (en) * | 2013-04-10 | 2013-09-04 | 深圳市海浦蒙特科技有限公司 | Elevator overload detection method |
| CN104118781B (en) * | 2014-07-08 | 2017-01-11 | 上海新时达电气股份有限公司 | Method for determining balance coefficient |
| CN104118781A (en) * | 2014-07-08 | 2014-10-29 | 上海新时达电气股份有限公司 | Method for determining balance coefficient |
| CN105502116A (en) * | 2014-10-15 | 2016-04-20 | 江南嘉捷电梯股份有限公司 | Method used for measuring balance coefficient of elevator |
| CN105540370A (en) * | 2015-12-17 | 2016-05-04 | 中联重科股份有限公司 | Elevator safety monitoring device, system and method, and elevator |
| CN105752785A (en) * | 2016-04-13 | 2016-07-13 | 苏州汇川技术有限公司 | System and method for detecting elevator balance coefficient |
| CN105752785B (en) * | 2016-04-13 | 2018-05-22 | 苏州汇川技术有限公司 | Balance coefficient of elevator detecting system and method |
| CN105905724B (en) * | 2016-06-16 | 2018-04-06 | 广州广日电梯工业有限公司 | The detection method and its detection means of a kind of balance coefficient of elevator |
| CN105905724A (en) * | 2016-06-16 | 2016-08-31 | 广州广日电梯工业有限公司 | Detection method and device for elevator balance coefficient |
| CN106348117A (en) * | 2016-11-18 | 2017-01-25 | 广州日滨科技发展有限公司 | Calculation method and device of elevator equilibrium coefficient |
| CN107458940A (en) * | 2017-09-12 | 2017-12-12 | 上海辛格林纳新时达电机有限公司 | A kind of method, apparatus and frequency converter for determining balance coefficient of elevator |
| CN107458940B (en) * | 2017-09-12 | 2019-09-20 | 上海辛格林纳新时达电机有限公司 | A kind of method, apparatus and frequency converter of determining balance coefficient of elevator |
| CN109896378A (en) * | 2017-12-11 | 2019-06-18 | 日立楼宇技术（广州）有限公司 | Monitoring method, device, elevator control cabinet, system, equipment and storage medium |
| CN111824888A (en) * | 2020-08-13 | 2020-10-27 | 苏州汇川技术有限公司 | Elevator balance coefficient detection method and device, elevator and computer storage medium |
| CN111824888B (en) * | 2020-08-13 | 2022-03-01 | 苏州汇川技术有限公司 | Elevator balance coefficient detection method and device, elevator and computer storage medium |
| CN113148791A (en) * | 2021-03-31 | 2021-07-23 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Rapid calculation method for elevator balance coefficient |
| CN113148791B (en) * | 2021-03-31 | 2022-03-29 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Rapid calculation method for elevator balance coefficient |
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