CN202717463U - Elevator balance coefficient detector - Google Patents
Elevator balance coefficient detector Download PDFInfo
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- CN202717463U CN202717463U CN 201220236260 CN201220236260U CN202717463U CN 202717463 U CN202717463 U CN 202717463U CN 201220236260 CN201220236260 CN 201220236260 CN 201220236260 U CN201220236260 U CN 201220236260U CN 202717463 U CN202717463 U CN 202717463U
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- elevator
- measurement device
- balance coefficient
- measurement
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Abstract
The utility model discloses an elevator balance coefficient detector. The elevator balance coefficient detector comprises an elevator data acquisition system, a detection data processing system and the like. An elevator balance coefficient value is obtained by performing analytical calculation on no-load operating power and operating speed data of an elevator. The elevator data acquisition system comprises an elevator operating speed measurement device and an elevator operating electric energy measurement device; the output of the elevator operating speed measurement device and the output of the elevator operating electric energy measurement device are respectively connected to the detection data processing system; and the numerical value of a balance coefficient is obtained by calculating on the basis of a traction-type elevator operating principle and an energy transfer relationship during operating. The elevator operating electric energy measurement device is an alternating-current broad band power measurement device in the application range of 10 to 60 Hz, and is connected to a power line of a traction motor through a clamp-shaped current sensor and a voltage input terminal for acquiring the information of the operating power of the traction motor. The elevator operating speed measurement device is a steel wire rope displacement measurement device which uses an optical mouse chip assembly, or adopts a revolution meter speed measurement device.
Description
Technical field
The utility model relates to a kind of detecting instrument, and more particularly, the utility model relates to a kind of special testing instrument of testing the traction elevator equilibrium factor.
Background technology
National standard BG7588-2003 is defined as equilibrium factor: " equilibrium factor, namely nominal payload and car quality are by the amount of counterweight or counterbalanced weight balance.”
The test method that existing elevator technology standard and elevator inspection rule adopt is: car loads respectively nominal payload 30%, 40%, 45%, 50%, 60% and does upper and lower omnidistance operation, when car and counterweight run to the same level position, the current value of record motor, draw electric current-load curve, determine equilibrium factor with the intersection point of run curve up and down.
The above-mentioned step by step load operating of elevator that passes through, the record motor current value is drawn the method for inspection that electric current-load chart is determined equilibrium factor, and advantage is to use general detector device facility, technology maturation; Shortcoming is relatively to waste time and energy, and the field operation time will surpass 1 hour usually, is about 1/3rd of whole terraced Test Detection Work amount.
Because existing above-mentioned balance coefficient of elevator method of inspection is relatively wasted time and energy, no-load equilibrium factor test technology is arisen at the historic moment in recent years, obtain some achievements in research, passed through to detect the ADIASYSTEM elevator checking system etc. that traction sheave both sides steel wire rope tension is determined the method for measuring static state weight difference in two sides of the detector of equilibrium factor, Liaoming Petrochemical Univ's research and development and tester thereof, German TUV company such as Anhui Special Equipment Test Inst research and development.Owing to be the no-load test, saved the link of repeatedly carrying counterweight, remain at present problem be, its data acquisition is for measuring the device for measuring force of mechanism's deadweights such as lift car and counterweight, on-the-spot installation is not convenient with the detection operation, and data acquisition is the static operating mode of elevator, and the dynamic test numerical value that adopts with existing elevator inspection rule there are differences, and has limited and has applied.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of easy and simple to handle, instrumentation that test result detects balance coefficient of elevator accurately is provided.
The utility model is achieved by following technical proposals: a kind of balance coefficient of elevator detector, comprise elevator data acquisition system and Measurement data-processing system, described elevator data acquisition system comprises elevator operation device for measurement of electrical energy and elevator speed measurement mechanism, its elevator operation device for measurement of electrical energy is received on the power lead of towing machine by clamp current transducer and voltage input end, gathers the energy information of drive motor operation; Its elevator speed measurement mechanism places on the mechanical transmission member of cage operation, gathers the displacement information of cage operation; Elevator operation device for measurement of electrical energy is connected with Measurement data-processing system respectively with the elevator speed measurement mechanism, by Measurement data-processing system Information Monitoring is analyzed, calculates, stores, is exported.
Elevator operation device for measurement of electrical energy of the present utility model is that Applicable scope is at the interchange wideband power-measuring device of 5～60Hz.
Described elevator speed measurement mechanism is the wire rope displacement measurement mechanism of use optical mouse chip assembly, or adopts the speed gage speed measuring device.
The utility model advantage compared with prior art is:
(1) the detection data that need only have 2 of elevator no-load running power and running velocitys, can be in the on-the-spot directly measurement of elevator operation.
(2) test technology and the measuring device of the measurement of elevator running power and running velocity are very ripe in the industry at present, have corresponding technical standard/standard to follow, and survey precision is secure.
(3) elevator does not need to load load during examinations, its proving installation on-the-spot quick and easy for installation, common about 10 minutes of field operation time, time saving and energy saving.
(4) test result is accurate, and test result is consistent with the result who presses the test of elevator inspection rule.
Description of drawings
Fig. 1 is example structure scheme drawing of the present utility model.
Fig. 2 is the embodiment cutaway view of elevator speed measurement mechanism in the utility model.
Fig. 3 is the track adjusting wheel embodiment structure cutaway view of elevator speed measurement mechanism in the utility model.
Fig. 4 is the structured flowchart of device for measurement of electrical energy embodiment in the utility model.
Among the figure: 1. elevator traction machine, 2. steel rope, 3. car, 4. counterweight, 5. device for measurement of electrical energy, 6. Measurement data-processing system, 7. velocity measuring device, 8. track adjusting wheel, 9. optical lens, 10. optical mouse chip circuit, 11. instrument stand, 12. bearings, 13. axles, 14. magnet steel.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
In the embodiment in figure 1, device for measurement of electrical energy 5 is that wideband (receive on the power lead of towing machine, the power information of Real-time Collection drive motor by 5～60Hz) power measurement instrumentss, its input media; Velocity measuring device 7 is photo-electric wire rope displacement survey meter, places elevator dragging wire rope one side, by the measurement to the elevator dragging wire rope linear velocity, can converse the running velocity of lift car.Device for measurement of electrical energy 5 is connected with Measurement data-processing system 6 respectively with velocity measuring device 7, and the information that gathers is analyzed, calculates, stores, exported.
In the embodiment of Fig. 2, shown elevator wire rope displacement measuring device is made of optical lens 9, optical mouse chip circuit 10, track adjusting wheel 8, instrument stand 11 etc.The market orientation of optical mouse chip also can be developed the mobile no touch displacement detecting field that applies to industrial circle for the general computer mouse.Optical mouse chip comprises the basic modules such as image picking system, dsp processor, output translator.Its bottom arranges one as the optical lens of small-sized image pickup head, image picking system is taken pictures to body surface incessantly by optical lens, and graphicinformation is sent to dsp processor, dsp processor draws direction and the displacement data of ohject displacement by to previous moment and the comparison of current time graphicinformation.
In the embodiment shown in fig. 3, magnet steel 14 has been inlayed in the both sides of track adjusting wheel 8, make track adjusting wheel have magnetic attraction to tested steel rope, its purpose is that the track adjusting wheel in the examinations relies on magnetic attraction near tested steel rope, supports the mutual alignment that measurement mechanism and tested steel rope keep regulation.Track adjusting wheel is installed on the instrument stand 11 by axle 13, bearing 12.
Fig. 4 is the structured flowchart of device for measurement of electrical energy in the utility model, has adopted " two meter technique " to measure the gross horsepower of threephase load, and its working process is: with clamp current transducer I
A, I
CWith the sub-V of voltage input end
A, V
B, V
CReceive respectively on the power lead of traction motor, the electric current that gathers, information of voltage are through sampling circuit, deliver to the amplifying circuit Hyblid Buffer Amplifier, become digital signal by A/D converter again, deliver to CPU2 and carry out calculation process, comprise the metering of electric energy sampling and the further accurate Calculation of the data such as relevant voltage, electric current, active volt-amperes and reactive volt-amperes, finish monitoring, record, the storage of running power parameter, carry out communication transfer by the RS485 interface.In view of the electric drive system widespread use of elevator variable-frequency control technique, the power frequency of elevator traction motor when command speed is generally 10～50Hz.Therefore, the power frequency power measuring instrument can not meet the demands.The Applicable scope of this device is: 3 cross streams, 5～60Hz, 0～500V, 0～200A.
Elevator speed in the utility model is measured can adopt the speed gage speed measuring device, for example use EC-2100 elevator speed meter, the peripheral speed ring (being commonly called as the roller that tests the speed) of speed gauge is contacted lightly with operating elevator dragging wire rope or speed limiter wire rope, can measure the linear velocity of steel rope.Rotating speed that also can be by measuring drive motor converses cage operation speed by the respective specified of GB/T 10059:
In the formula: v-cage operation speed, m/s;
D-traction sheave pitch diameter, mm;
N-surveys motor speed, r/min;
I-towing machine reduction ratio;
The i-traction ratio.
This detector is calculated as follows the balance coefficient of elevator value:
In the formula: K---the equilibrium factor of tested elevator
N
x---unloaded car is descending, when running to counterweight same level position, and motor running power, W;
V
x---unloaded car is descending, when running to counterweight same level position, and car speed, m/s;
Q---rated load, kg obtains from the basic specification of tested elevator;
G---acceleration due to gravity is got 9.81m/s
2
η---driving efficiency, the coefficient between the running power numerical value of car idle condition drive motor running power numerical value and elevator load obtains by following dual mode:
(1) for the elevator of widely used employing gearless machine, and the elevator that adopts cylindrical wheel towing machine, planetary gear traction engine, belt-driving towing machine, be calculated as follows:
In the formula: N
s---unloaded car is up, when running to counterweight same level position, and motor running power, W;
V
s---unloaded car is up, when running to counterweight same level position, and car speed, m/s;
The same formula of other symbolic formulation in the formula.
(2) for the elevator that adopts the worm and gear towing machine, technical scheme by " selecting the sample ladder to detect; to set up the elevator of the employing worm and gear towing machine of staple spleen/specification; up driving efficiency data bank " is implemented, during detection according to the towing machine design parameter of tested elevator, from η numerical value corresponding to database lookup.
Below with embodiment the utility model has been carried out launching to describe by reference to the accompanying drawings, this description does not have restricted, and shown in the drawings is a kind of embodiment that the utility model instrument consists of also, and the technical solution of the utility model is not limited to this.Those of ordinary skill in the art should be understood that in the situation that does not break away from the utility model design philosophy, actual enforcement of the present utility model also has the variation on some details.So as long as meet the utility model aim, these variations include within protection domain of the present utility model.
Claims (4)
1. balance coefficient of elevator detector, comprise elevator data acquisition system and Measurement data-processing system, it is characterized in that, described elevator data acquisition system comprises elevator operation device for measurement of electrical energy and elevator speed measurement mechanism, its elevator operation device for measurement of electrical energy is received on the power lead of towing machine by clamp current transducer and voltage input end, gathers the energy information of drive motor operation; Its elevator speed measurement mechanism places on the mechanical transmission member of cage operation, gathers the displacement information of cage operation; Elevator operation device for measurement of electrical energy is connected with Measurement data-processing system respectively with the elevator speed measurement mechanism, by Measurement data-processing system Information Monitoring is analyzed, calculates, stores, is exported.
2. balance coefficient of elevator detector according to claim 1 is characterized in that, described elevator operation device for measurement of electrical energy is that Applicable scope is at the interchange wideband power-measuring device of 5～60Hz.
3. balance coefficient of elevator detector according to claim 1 is characterized in that, described elevator speed measurement mechanism is for using the wire rope displacement measurement mechanism of optical mouse chip assembly.
4. balance coefficient of elevator detector according to claim 1 is characterized in that, described elevator speed measurement mechanism is the speed gage speed measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236260 CN202717463U (en) | 2012-05-22 | 2012-05-22 | Elevator balance coefficient detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236260 CN202717463U (en) | 2012-05-22 | 2012-05-22 | Elevator balance coefficient detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202717463U true CN202717463U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220236260 Expired - Fee Related CN202717463U (en) | 2012-05-22 | 2012-05-22 | Elevator balance coefficient detector |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674102A (en) * | 2012-05-22 | 2012-09-19 | 刘培 | Detector for elevator balance coefficient |
| WO2013174243A1 (en) * | 2012-05-22 | 2013-11-28 | 天津豪雅科技发展有限公司 | Elevator balance coefficient detection method and detector therefor |
| CN105004481A (en) * | 2015-07-16 | 2015-10-28 | 广州特种机电设备检测研究院 | Elevator no-load balance coefficient detection apparatus with automatic return function |
-
2012
- 2012-05-22 CN CN 201220236260 patent/CN202717463U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674102A (en) * | 2012-05-22 | 2012-09-19 | 刘培 | Detector for elevator balance coefficient |
| WO2013174243A1 (en) * | 2012-05-22 | 2013-11-28 | 天津豪雅科技发展有限公司 | Elevator balance coefficient detection method and detector therefor |
| CN102674102B (en) * | 2012-05-22 | 2014-12-03 | 天津豪雅科技发展有限公司 | Detector for elevator balance coefficient |
| CN105004481A (en) * | 2015-07-16 | 2015-10-28 | 广州特种机电设备检测研究院 | Elevator no-load balance coefficient detection apparatus with automatic return function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN HAOYA TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: LIU PEI Effective date: 20130527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300162 DONGLI, TIANJIN TO: 300384 NANKAI, TIANJIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130527 Address after: 300384 Tianjin City Huayuan Industrial Zone Ziyuan Road No. 6 Building 1 room 3030 Patentee after: Tianjin Haoya Science & Technology Development Co., Ltd. Address before: 300162, Tianjin District, Dongli Province Road, 30 ERON Les Loges Du Park Hotel Patentee before: Liu Pei |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20200522 |