CN202687680U - No-load dynamic detector for elevator equilibrium coefficient - Google Patents
No-load dynamic detector for elevator equilibrium coefficient Download PDFInfo
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- CN202687680U CN202687680U CN 201220335435 CN201220335435U CN202687680U CN 202687680 U CN202687680 U CN 202687680U CN 201220335435 CN201220335435 CN 201220335435 CN 201220335435 U CN201220335435 U CN 201220335435U CN 202687680 U CN202687680 U CN 202687680U
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- cable clamp
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Abstract
The utility model discloses a no-load dynamic detector for an elevator equilibrium coefficient. The no-load dynamic detector comprises a mechanical component, a testing instrument and analysis management software, the mechanical component comprises a steel wire rope clamp, an adjusting mechanism, a tension sensor, flexible connecting belts, a steel tube and the like, the steel wire rope clamp is fixed onto a steel wire rope on a car side of an elevator traction sheave, the adjusting mechanism is connected with the steel wire rope clamp and is connected with the tension sensor through one flexible connecting belt, the tension sensor is connected with the steel tube through the other flexible connecting belt, and the steel tube is erected below a traction machine support or a floor. The testing instrument is connected with the sensor and reads the value of the sensor. By the aid of the detector, testing accuracy can be improved, and testing time can be shortened.
Description
Technical field
The utility model relates to a kind of detecting instrument, and more particularly, the utility model relates to a kind of no-load detection of dynamic instrumentation 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 assented and is given birth 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 no-load test, saved the link of repeatedly carrying counterweight, remain at present problem be, remain at present problem be, test data is the static numerical value of elevator, the technique of dynamic measurement that adopts with existing elevator inspection rule there are differences in theory.Owing to do not discharge the impact that car is led boots, heavy side led the friction drag of boots and towing machine, the accuracy of test result is relatively poor with repeatability, especially worm gear is rotated elevator, same elevator different people detects the error that may have more than 15%, limited and applied.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the accurately special testing instrument of balance coefficient of elevator of a kind of easy and simple to handle, test result is provided.This instrument is used for reference existing balance coefficient of elevator no-load Testing Technology Study achievement, and take existing elevator inspection rule as reference, emphasis solves the elevator mechanical system friction force to the impact of testing result, improves precision and the Site Detection efficient of test result.
The utility model is achieved by following technical proposals: balance coefficient of elevator no-load detection of dynamic instrument is comprised of machine elements, test gear and analysis management software, and described machine elements comprises wire cable clamp, regulating mechanism, pulling force sensor, flexible link belt and steel pipe etc.; Wire cable clamp is fixed on the cage side steel rope of elevator traction sheave; Regulating mechanism is connected with wire cable clamp, and is connected with pulling force sensor by flexible link belt; Pulling force sensor is connected with steel pipe by flexible link belt, and steel pipe frame is under traction machine support or floor.
The regulating mechanism of this detecting instrument comprises: screw rod, U-shaped groove, nut and pressure bearing, screw rod pass through hole and the pressure bearing mesopore of U-shaped trench bottom successively, are connected with nut, and pressure bearing is located between nut and the U-shaped groove.
The wire cable clamp of this detecting instrument adopts two pressing plates with grooving, and the grooving on the front pressuring plate is trapezoidal, and the grooving on the rear fender is circular arc type, and two pressing plates are by 4 cover bolt-lockings.
The method of using the detection of this detecting instrument enforcement traction elevator equilibrium factor comprises the following steps:
Empty car, car is stopped at counterweight be in the same level position, cut off the electricity supply, machine elements is installed to the cage side steel rope, is guaranteed that sensor is subjected to force direction parallel with steel rope, slowly unclamp band-type brake and maintenance, make towing machine arrive a balance, obtain first parameter G1; With its regulating mechanism nut of spanner clickwise, slowly upwards carry counterweight, obtain again second parameter G2, then calculate balance coefficient of elevator according to following formula:
K=n(G1+G2)/(2*Q)
In the formula: K---balance coefficient of elevator;
The difference of G1---Elevator weight sensor and lift car deducts system's maximum static friction force;
The difference of G2---Elevator weight sensor and lift car adds system's maximum static friction force;
N---traction ratio;
Q---nominal payload.
The utility model major advantage compared with prior art is that elevator does not need to load load during examinations, and is time saving and energy saving; Test result is accurate, and is consistent with the result of elevator inspection rule test.
Description of drawings
Fig. 1 is the constructional drawing of wire cable clamp of the present utility model.
Fig. 2 is the constructional drawing of regulating mechanism of the present utility model.
Fig. 3 is example structure block diagram of the present utility model.
Among the figure: 1. rear fender 2. front pressuring plates 3. clamp nuts 4. binding bolt 5.U type grooves 6. adjusting screw(rod)s 7. setting nuts 8. pressure bearings 9. traction sheaves 10. cage side steel rope 11. wire cable clamps, 12. regulating mechanism 13. test gears, 14. Connection Block 15. sensor signal lines, 15. traction machine supports or floor 17. steel pipes, 18. sensors, 19. flexible link belts
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
In the embodiment in figure 1, this testing tool comprises: machine elements, and test gear, and analysis management software, the constitute and function of each several part is as follows:
1, machine elements: comprise the compositions such as wire cable clamp 11, regulating mechanism 12, Connection Block 14, sensor 19, flexible link belt 18 and steel pipe 17.
Wire cable clamp is seen accompanying drawing 1, is used for clamping when dynamometry steel rope.
Grip size: the thickness of rear fender is 7 millimeters, has considered that mainly the easy for installation of anchor clamps and minimizing are on the impact of adjacent wires rope; The thickness of front pressuring plate is 22 millimeters, has enough intensity.
Clamp material: anchor clamps adopt duralumin LY12 as raw MAT'L, have namely guaranteed the intensity of material, can not damage be arranged to the steel rope of tested elevator again.
The anchor clamps fastening means: sampling quadruplet screw, nut have guaranteed to be pressed from both sides the stressed even of steel rope.
Show that by test this wire cable clamp can clamp 8 to 12 millimeters steel rope, under the pulling force of 10000N, do not produce slip phenomenon.
Regulating mechanism is seen accompanying drawing 2, adjusting screw(rod) 6, U-shaped groove 5, setting nut 7 and pressure bearing 8.Mounting means is that through hole, pressure bearing 7 mesopores that screw rod 6 passes in the middle of U-shaped groove 5 bottoms successively are connected with setting nut 7.
Regulative mode: adopt the mode up-down adjustment that drives screw rod by nut, adjustment travel can reach 30 millimeters.Pressure bearing has been installed below nut, and the friction force when reducing to regulate can improve measuring accuracy.
Adjustment means: adopt free wrench, improved adjusting efficient.
Raw MAT'L: U-shaped groove 5 adopts steel 45# as raw material, has guaranteed its stressed requirement of strength.
Sensor is measured pulling force with 18, adopts electrostrictive strain bridge-type sensor, its composition error≤± 0.020; That will note sensor when sensor installation is subjected to force direction with parallel by the folder steel rope.
With flexible link belt 19 connecting sensor 18 and other mechanical element, avoid sensor to be subject to torsion, guarantee the survey precision of sensor.
2, test gear: its effect is the pulling force signal that Real-time Collection and storage sensor are adopted, and carries out pretreatment, obtains final equilibrium factor, and can upload to computing machine.
3, analysis management software: function is data analysis and the management to gathering.
The program that implementation detects is:
A) empty car, close car door and Room door.
B) start elevator, car is stopped at counterweight be in the same level position.
C) cut off the elevator general supply.
D) machine elements is installed, as shown in Figure 3: clamp the steel cable of towing machine cage side with wire cable clamp, steel pipe frame in traction machine support or under the floor as another stressed fulcrum, guarantee to make machine elements to be in tensioning state.
E) the connecting sensor output signal is opened the test gear power supply to handing, output test No., nominal payload, the parameters such as traction ratio.
F) manually unclamp band-type brake, traction sheave is slowly rotated, the counterweight slip arrives a stress balance, reads first parameter G1 by test gear; With its regulating mechanism nut of free wrench clickwise, counterweight is moved on slowly, read second parameter G2 by test gear.Attention must allow band-type brake be in all the time open configuration in control process, in order to avoid affect result of a measurement.
G) press the equilibrium factor formula and calculate test result:
K=n(G1+G2)/(2*Q)
In the formula: K---balance coefficient of elevator;
The difference of G1---Elevator weight sensor and lift car deducts system's maximum static friction force;
The difference of G2---Elevator weight sensor and lift car adds system's maximum static friction force;
N---traction ratio;
Q---nominal payload.
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 (3)
1. a balance coefficient of elevator no-load dynamic measuring instrument is comprised of machine elements, test gear and analysis management software, it is characterized in that described machine elements comprises wire cable clamp, regulating mechanism, pulling force sensor, flexible link belt and steel pipe etc.; Wire cable clamp is fixed on the steel rope of cage side of elevator traction opinion; Regulating mechanism is connected with wire cable clamp, and is connected with pulling force sensor by flexible link belt; Pulling force sensor is connected with steel pipe by flexible link belt, steel pipe, and frame is under traction machine support or floor.
2. balance coefficient of elevator no-load dynamic measuring instrument according to claim 1, it is characterized in that, described regulating mechanism comprises: screw rod, U-shaped groove, nut and pressure bearing, screw rod passes through hole and the pressure bearing mesopore of U-shaped trench bottom successively, be connected with nut, pressure bearing is located between nut and the U-shaped groove.
3. balance coefficient of elevator no-load dynamic measuring instrument according to claim 1, it is characterized in that described wire cable clamp adopts two pressing plates with grooving, the grooving on the front pressuring plate is trapezoidal, grooving on the rear fender is circular arc type, and two pressing plates are by 4 cover bolt-lockings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335435 CN202687680U (en) | 2012-07-11 | 2012-07-11 | No-load dynamic detector for elevator equilibrium coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335435 CN202687680U (en) | 2012-07-11 | 2012-07-11 | No-load dynamic detector for elevator equilibrium coefficient |
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| Publication Number | Publication Date |
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| CN202687680U true CN202687680U (en) | 2013-01-23 |
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| CN 201220335435 Expired - Fee Related CN202687680U (en) | 2012-07-11 | 2012-07-11 | No-load dynamic detector for elevator equilibrium coefficient |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745566A (en) * | 2012-07-11 | 2012-10-24 | 温州市特种设备检测中心 | Elevator balance coefficient no-load dynamic detector and method for detecting elevator balance coefficient |
| CN105151941A (en) * | 2015-09-18 | 2015-12-16 | 广州日滨科技发展有限公司 | Lift force test device and method for elevator speed governor |
| CN106737690A (en) * | 2017-01-22 | 2017-05-31 | 桂林电子科技大学 | Flexible wire ropes experiment test platform and method of testing are walked by robot |
-
2012
- 2012-07-11 CN CN 201220335435 patent/CN202687680U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745566A (en) * | 2012-07-11 | 2012-10-24 | 温州市特种设备检测中心 | Elevator balance coefficient no-load dynamic detector and method for detecting elevator balance coefficient |
| CN102745566B (en) * | 2012-07-11 | 2015-04-22 | 温州市特种设备检测中心 | Elevator balance coefficient no-load dynamic detector and method for detecting elevator balance coefficient |
| CN105151941A (en) * | 2015-09-18 | 2015-12-16 | 广州日滨科技发展有限公司 | Lift force test device and method for elevator speed governor |
| CN106737690A (en) * | 2017-01-22 | 2017-05-31 | 桂林电子科技大学 | Flexible wire ropes experiment test platform and method of testing are walked by robot |
| CN106737690B (en) * | 2017-01-22 | 2023-03-21 | 桂林电子科技大学 | Experimental test platform and test method for flexible steel wire rope for robot walking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20170711 |