CN1087990A - Flexible rope tension on-line metering device and characterization processes thereof - Google Patents
Flexible rope tension on-line metering device and characterization processes thereof Download PDFInfo
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- CN1087990A CN1087990A CN 92113618 CN92113618A CN1087990A CN 1087990 A CN1087990 A CN 1087990A CN 92113618 CN92113618 CN 92113618 CN 92113618 A CN92113618 A CN 92113618A CN 1087990 A CN1087990 A CN 1087990A
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Abstract
Flexible rope tension on-line metering device and characterization processes thereof belong to the automatic measurement technical field.The technical matters that solves is that sensor is not serially connected in the gentle rope force structure, at the force structure of installing, all do not change when discharging gentle rope, also is not subjected to material, the diameter of gentle rope, the influence of length variations during detection.The major technique feature is particular design force cell frame and characterization processes thereof, and configuration computing machine program curing, and its measuring accuracy height is installed, discharged, use and easy to maintenance.Be applicable to the O﹠M of flexible cable structure engineering, gentle rope and the research of the gentle rope theory of computation.
Description
The invention belongs to the automatic measurement technical field
In the prior art, the method that flexible rope tension is measured has various ways: as piezomagnetic, strain resistance type, static capacitive etc.When measuring flexible rope tension, all need sensor string is connected in the gentle rope force structure, when installing and discharging, all will change gentle rope force structure, use very inconvenient with these modes.
As the string that utilizes the manufacturing of the string vibration principle formula sensor that shakes, its natural frequency of vibration changes with the variation of the suffered pulling force of string (gentle rope).Though this measuring method can be measured the pulling force of gentle rope under the situation that does not change gentle rope force structure, its vibratory string frequency is with tension variations, but also be subjected to material, the diameter of string (gentle rope), the influence of length variations, and the boundary condition complexity of gentle rope, be not inconsistent with the theoretical calculation formula condition, so bad adaptability, measuring accuracy is not high.Though gentle in recent years Suo Lali line Measurement Technique is made progress to some extent, and is still not ideal enough, also do not have a kind of effective measurement means.
Purpose of the present invention: in view of many drawbacks of existing detection technique, provide a kind of effective measuring technique specially for the flexible cable structure engineering, and design a kind of installation, force cell frame easy to use, be applicable to the O﹠M of flexible cable structure engineering, gentle rope and the research of the gentle rope theory of computation.
Flexible rope tension on-line metering device of the present invention and characterization processes thereof are formed the force cell frame by (1) force cell bracing frame, (10) force cell, (7) fixed pulley, (8) hook, (9) fixed pulley, (11) nut shim and (12) boosting mechanism; Its characterization processes is that hook (8) is hung on the gentle rope of required detection, as a stress point, two fulcrums that two fixed pulleys (7), (8) are equivalent to set, by boosting mechanism (12) it is applied a lateral pull, make gentle rope in sensor frame, produce a small amount of deflection, through signal cable (3),, can record the gentle suffered tension force of rope by signal conversion circuit (4), computing machine input interface system (5) and computer system (6).Its computer system is made up of computing machine, printer, numeral demonstration, audible and visual alarm device etc., the computing machine one chip microcomputer, the program of its inside solidification is: shown → real-time, timed print program by the size → charactron that adds gentle rope generation amount of deflection → calculating flexible rope tension in lateral pull → sensor frame.
Principle of work of the present invention: the hook (8) of force cell bracing frame (1) is hung on the gentle rope (2) of tested pulling force, as a stress point, gentle rope (2) is tightly being held in the palm in two fixed pulleys (7), (9), as two fulcrums, boosting mechanism (12) by hand, electronic or hydraulic pressure applies a lateral pull to gentle rope (2), makes gentle rope (2) produce small giving in sensor frame and puts amount of deflection.The size conversion that will add lateral pull through force cell (10) is an electric signal, by signal cable (3) by signal conversion circuit (4), computing machine input interface system (5), send into computer system (6), computing machine is according to giving the size of putting amount of deflection and adding lateral pull, calculate the gentle suffered tension force of rope, and show and printing.
The advantage that the present invention is compared with prior art had:
1. ad hoc force cell frame, this sensor can not be connected in series with gentle rope force structure.
2. do not change the force structure of gentle rope, the precision height of measurement.
3. be not subjected to material, the diameter of string (gentle rope), the influence of length variations when detecting.
4. install, discharge, use and easy to maintenance.
5. be furnished with computer system, but online in real time is measured the flexible rope tension under the various states.
Description of drawings:
Fig. 1. force cell shelf structure figure
Fig. 2. gentle Suo Lali on-line measurement installation drawing
Sequence number among the figure: (1) force cell bracing frame, (2) gentle rope, (3) signal cable, (4) signal conversion circuit, (5) computing machine input interface system, (6) computer system, (7) fixed pulley, (8) hook, (9) fixed pulley, (10) force cell, (11) nut shim, (12) boosting mechanism.
Block scheme: the shaping amplification circuit of (4) signal conversion circuit-be made up of integrated operational amplifier constitutes, and the ultra-weak electronic signal shaping of force cell output is enlarged into the needed standard signal of computer interface system; (5) computing machine input interface system-be made of multidiameter option switch and optical isolation amplifier can be simultaneously isolates 8 road input signals and send into computing machine after amplifying through photoelectricity; (6) computer system-comprise one chip microcomputer, nixie display, printer, audible and visual alarm part, computing machine is according to input signal and preset fleximeter and calculate the gentle suffered tension force of rope and show, print.
Claims (3)
1, a kind of flexible rope tension on-line metering device and characterization processes thereof is characterized in that particular design reaches (12) boosting mechanism by (1) force cell bracing frame, (10) force cell, (7) fixed pulley, (8) hook, (9) fixed pulley, (11) nut shim and forms the force cell frame; Its characterization processes is that hook (8) is hung on the gentle rope of required detection, as a stress point, two fulcrums that two fixed pulleys (7), (8) are equivalent to set, by boosting mechanism (12) it is applied a lateral pull, make gentle rope in sensor frame, produce a small amount of deflection, through signal cable (3), can record the gentle suffered tension force of rope by signal conversion circuit (4), computing machine input interface system (5) and computer system (6).
2, flexible rope tension on-line metering device as claimed in claim 1 and characterization processes thereof, its computer system is made up of computing machine, printer, numeral demonstration, audible and visual alarm device etc., it is characterized in that the computing machine one chip microcomputer, the program of its inside solidification is: shown → real-time, timed print program by the size → charactron that adds gentle rope generation amount of deflection → calculating flexible rope tension in lateral pull → sensor frame.
3, flexible rope tension on-line metering device as claimed in claim 1 and characterization processes thereof is characterized in that by the boosting mechanism (12) of hand, electronic or hydraulic pressure gentle rope (2) being applied a lateral pull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113618 CN1087990A (en) | 1992-12-05 | 1992-12-05 | Flexible rope tension on-line metering device and characterization processes thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113618 CN1087990A (en) | 1992-12-05 | 1992-12-05 | Flexible rope tension on-line metering device and characterization processes thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1087990A true CN1087990A (en) | 1994-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113618 Pending CN1087990A (en) | 1992-12-05 | 1992-12-05 | Flexible rope tension on-line metering device and characterization processes thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1087990A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475114B (en) * | 2008-01-04 | 2013-03-13 | 东芝电梯株式会社 | Cable tension adjusting method for elevator |
| CN101476955B (en) * | 2008-01-04 | 2013-06-05 | 东芝电梯株式会社 | Cable tension determining apparatus |
| CN103771219A (en) * | 2012-10-25 | 2014-05-07 | 株式会社日立制作所 | Sling tension testing device of elevator and sling tension testing method |
| CN108689106A (en) * | 2018-05-30 | 2018-10-23 | 厦门攸信信息技术有限公司 | Belt tension force checking device and assembly line |
| CN110261029A (en) * | 2019-07-24 | 2019-09-20 | 合肥市尚技体育用品有限公司 | A kind of portable racket poundage detection device |
-
1992
- 1992-12-05 CN CN 92113618 patent/CN1087990A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475114B (en) * | 2008-01-04 | 2013-03-13 | 东芝电梯株式会社 | Cable tension adjusting method for elevator |
| CN101476955B (en) * | 2008-01-04 | 2013-06-05 | 东芝电梯株式会社 | Cable tension determining apparatus |
| CN103771219A (en) * | 2012-10-25 | 2014-05-07 | 株式会社日立制作所 | Sling tension testing device of elevator and sling tension testing method |
| CN103771219B (en) * | 2012-10-25 | 2015-10-28 | 株式会社日立制作所 | The hanger tension testing fixture of elevator and hanger tension inspection method |
| CN108689106A (en) * | 2018-05-30 | 2018-10-23 | 厦门攸信信息技术有限公司 | Belt tension force checking device and assembly line |
| CN110261029A (en) * | 2019-07-24 | 2019-09-20 | 合肥市尚技体育用品有限公司 | A kind of portable racket poundage detection device |
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