CN102419233A - Device and method for detecting tension of elliptic sleeve type steel wire rope - Google Patents
Device and method for detecting tension of elliptic sleeve type steel wire rope Download PDFInfo
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- CN102419233A CN102419233A CN2011104177632A CN201110417763A CN102419233A CN 102419233 A CN102419233 A CN 102419233A CN 2011104177632 A CN2011104177632 A CN 2011104177632A CN 201110417763 A CN201110417763 A CN 201110417763A CN 102419233 A CN102419233 A CN 102419233A
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Abstract
The invention discloses a device and a method for detecting the tension of an elliptic sleeve type steel wire rope. The device comprises two arc tension sensing plates which are symmetrically buckled on the two sides of the steel wire rope, wherein a plurality of resistance strain sheets are arranged at intervals on the contact surfaces between the arc tension sensing plates and the steel wire rope; hollow cylindrical clamping covers with side wings are arranged on the outer parts of the arc tension sensing plates; the upper parts and the lower parts of the hollow cylindrical clamping covers are buckled on the steel wire rope; rubber cushions are arranged at the places, where the hollow cylindrical clamping covers are buckled with the steel wire rope; the side wings of one hollow cylindrical clamping cover and the side wings of the other hollow cylindrical clamping cover are fixedly connected together through outer fastening bolts; and signal processors are arranged at the bottoms on the inner sides of the hollow cylindrical clamping covers. The output voltage change of the resistance strain sheets is detected through the signal processor by means of the radial contraction and the expansion change of the arc tension sensing plates, the tension change of the steel wire rope is calculated, the tension data of the steel wire rope is sent to an industrial personal computer through the signal processors, and then the tension of the steel wire rope is detected. The device is simple in structure, high in detection efficiency and high in detection speed, and is convenient to operate.
Description
Technical field
The present invention relates to the telescopic steel wire rope tension detection device and method of a kind of ellipse, the tension force that is particularly useful for round-strand rope detects.
Background technology
Wire rope is widely used in occasions such as mine hoisting, bridge suspention, aerial cableway, the running status of the direct consersion unit of its tension force as the key components of lifting, traction, load carrier.At present steel wire rope tension detection mainly adopts following three kinds of modes: the one, sensor string is connected to the direct Detection Method of wire rope; The 2nd, adopt three-point bending method to detect the indirect detection method of wire rope transverse force; The 3rd, utilize the ripple method of shaking that concerns between tension force and wire rope vibration frequency, the row velocity of wave propagation.Publication number is the cable tension determining apparatus of CN 200810185697.9, utilizes three-point bending method, measures the tension force of elevator rope.Grant number is the rope tension measuring apparatus for use of the elevator of CN 1060135C, utilizes the row velocity of wave propagation, detects the tension force of hoist cable.There is following problem in these methods: the one, and the globality of destruction wire rope; The 2nd, extra forcing on the wire rope influences its mechanical property; The 3rd, complicacy is installed, detection efficiency is low.
Summary of the invention
Technical matters: the objective of the invention is to overcome the weak point in the prior art, a kind of wire rope mechanical property, simple in structure, easy for installation, oval telescopic steel wire rope tension detection device and method that detection efficiency is high of not influencing is provided.
Technical scheme: the telescopic steel wire rope tension detection device of ellipse of the present invention; Comprise that two symmetries that have flank fasten the arc tension force tablet that is pressed in the wire rope both sides; The flank of arc tension force tablet is fixedly connected through interior fastening bolt; The inwall of the arc tension force tablet of two fastenings constitutes an elliptical cylinder; Be interval with a plurality of resistance strain gages on the contacted surface of arc tension force tablet and wire rope, the outside of arc tension force tablet is provided with top and the bottom and is fastened on the hollow cylinder card cover that has flank on the wire rope, and the fastening place of hollow cylinder card cover and wire rope is provided with rubber blanket; The flank of hollow cylinder card cover is fixed together through the flank of outer fastening bolt and hollow cylinder card cover, and the inside bottom of hollow cylinder card cover is provided with signal processor.
Described arc tension force tablet is that 0.5%～0.8% carbon steel is processed by carbon content; The minor axis length of described elliptical cylinder is 90%～95% of a wirerope diameter, and the long axis length of elliptical cylinder is 140%～150% of a wirerope diameter; Described a plurality of resistance strain gage is 6～10.
The method of the oval telescopic steel wire rope tension detection device of the present invention comprises the steps:
A, two arc tension force tablets symmetry that will have a flank fasten and are pressed on the wire rope; Through fastening bolt two arc tension force tablets that symmetry fastens are fixed together; Be pressed on the wire rope surface of contact at two arc tension force tablets a plurality of resistance strain gages are set at interval; And the lead-in wire of a plurality of resistance strain gages is connected on the signal processor; Hollow cylinder card cover is fixed together through outer fastening bolt and arc tension force tablet, and hollow cylinder card cover top and the bottom are fastened on the wire rope;
B, when wire rope radial shrinkage or when expansion under the tension force effect; Each outer wall of arc tension force tablet correspondingly shrinks on the ellipse short shaft direction or expansion; The strain of arc tension force tablet causes the output voltage of resistance strain gage to change, and at this moment signal processor is gathered the output voltage changing value of each resistance strain gage;
C, set apply tension force under the setting changing value is
, detect the total voltage changing value
of each resistance strain gage output under setting changing value
through signal processor;
D, wire rope is applied tension force; Detect total detection voltage change
of the resistance strain gage of wire rope when stressed through signal processor, by following formula:
Draw the tension force change detected value
of wire rope;
E, send the tension data of wire rope to industrial computer, accomplish detection steel wire rope tension through signal processor.
Beneficial effect: the arc tension force tablet on wire rope is withheld in utilization of the present invention; The radial shrinkage of wire rope under the tension force effect and expansion are changed into the change in voltage of the resistance strain gage of arranging axis, arc tension force tablet outer wall upper edge; The output voltage that signal processor detects resistance strain gage changes; Calculate the tension variation of wire rope, send the tension data of wire rope to industrial computer through signal processor at last, realize detection steel wire rope tension.Compared with present technology, can not destroy the globality of wire rope, not influence the mechanical property of wire rope, install simply, detection efficiency is high, can realize accurately detecting to the tension force of various round-strand ropes.It is simple in structure, and is easy to operate, and detection efficiency is high, and corresponding speed is fast, has practicality widely.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a cross sectional representation of the present invention.
Among the figure: 1-wire rope, 2-rubber blanket, 3-hollow cylinder card cover, the outer fastening bolt of 4-, fastening bolt in the 5-, 6-resistance strain gage, 7-arc tension force tablet, 8-signal processor.
Embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are done further to describe:
Shown in Fig. 1～2, the telescopic steel wire rope tension detection device of ellipse of the present invention comprises that have flank two symmetries fasten the arc tension force tablets 7 that are pressed in wire rope 1 both sides, and arc tension force tablet 7 is that 0.5%～0.8% carbon steel is processed by carbon content.The flank of arc tension force tablet 7 is fixedly connected through interior fastening bolt 5; The inwall of the arc tension force tablet 7 of two fastenings constitutes an elliptical cylinder; The minor axis length of elliptical cylinder is 90%～95% of wire rope 1 diameter, and the long axis length of elliptical cylinder is 140%～150% of wire rope 1 diameter.Mount 6～10 resistance strain gages 6 on the contacted surface of arc tension force tablet 7 and wire rope 1 at interval along the axis.The outside of arc tension force tablet 7 is equipped with top and the bottom and is fastened on the hollow cylinder card cover 3 that has flank on the wire rope 1; Hollow cylinder card cover 3 is provided with rubber blanket 2 with the fastening place of wire rope 1; The flank of hollow cylinder card cover 3 is fixed together through the flank of outer fastening bolt 4 with hollow cylinder card cover 3, and the inside bottom of hollow cylinder card cover 3 is provided with signal processor 8.
The method of the oval telescopic steel wire rope tension detection device of the present invention; At first; Two arc tension force tablets, 7 symmetries that will have flank fasten and are pressed on the wire rope 1; Through fastening bolt 5 two arc tension force tablets 7 that symmetry fastens are fixed together, are pressed on wire rope 1 surface of contact at two arc tension force tablets 7 and at interval a plurality of resistance strain gages 6 are set, and the lead-in wire of a plurality of resistance strain gages 6 is connected on the signal processor 8; Hollow cylinder card cover 3 is fixed together with arc tension force tablet 7 through outer fastening bolt 4, and hollow cylinder card cover 3 top and the bottom are fastened on the wire rope 1; Because arc tension force tablet 7 is withheld on wire rope 1; Wire rope 1 can cause each outer wall of arc tension force tablet 7 correspondingly on the ellipse short shaft direction, to shrink and expansion in radial shrinkage under the tension force effect and expansion, and the strain meeting of arc tension force tablet 7 causes the output voltage of resistance strain gage 6 to change.When wire rope 1 radial shrinkage or when expansion under the tension force effect; Each outer wall of arc tension force tablet 7 correspondingly shrinks on the ellipse short shaft direction or expansion; The strain of arc tension force tablet 7 causes the output voltage of resistance strain gage 6 to change, and at this moment signal processor 8 is gathered the output voltage changing value of each resistance strain gage 6; Setting applies setting changing value under the tension force for
, detects each resistance strain gage 6 output at the total voltage changing value of setting under the changing value
through signal processor 8; Then; Wire rope 1 is applied tension force; Detect total detection voltage change
of wire rope 1 resistance strain gage 6 when stressed through signal processor 8, by following formula:
Draw the tension force change detected value
of wire rope 1; At last, with the wireless industrial computer that sends to of the tension data of wire rope, realize detection through signal processor 8 to wire rope 1 tension force.
Claims (5)
1. telescopic steel wire rope tension detection device of ellipse; It is characterized in that: it comprises that two symmetries that have flank fasten the arc tension force tablet (7) that is pressed in wire rope (1) both sides; The flank of arc tension force tablet (7) is fixedly connected through interior fastening bolt (5); The inwall of the arc tension force tablet (7) of two fastenings constitutes an elliptical cylinder; Be interval with a plurality of resistance strain gages (6) on the contacted surface of arc tension force tablet (7) and wire rope (1); The outside of arc tension force tablet (7) is provided with top and the bottom and is fastened on the hollow cylinder card cover (3) that has flank on the wire rope (1); Hollow cylinder card cover (3) is provided with rubber blanket (2) with the fastening place of wire rope (1), and the flank of hollow cylinder card cover (3) is fixed together through the flank of outer fastening bolt (4) with hollow cylinder card cover (3), and the inside bottom of hollow cylinder card cover (3) is provided with signal processor (8).
2. the telescopic steel wire rope tension detection device of ellipse according to claim 1 is characterized in that: described arc tension force tablet (7) is that 0.5%～0.8% carbon steel is processed by carbon content.
3. the telescopic steel wire rope tension detection device of ellipse according to claim 1; It is characterized in that: the minor axis length of described elliptical cylinder is 90%～95% of wire rope (a 1) diameter, and the long axis length of elliptical cylinder is 140%～150% of wire rope (a 1) diameter.
4. the telescopic steel wire rope tension detection device of ellipse according to claim 1 is characterized in that: described a plurality of resistance strain gages (6) are 6～10.
5. the method for the telescopic steel wire rope tension detection device of ellipse is characterized in that comprising the steps:
A, two arc tension force tablets (7) symmetry that will have a flank fasten and are pressed on the wire rope (1); Through fastening bolt (5) two arc tension force tablets (7) that symmetry fastens are fixed together; Be pressed on wire rope (1) surface of contact at two arc tension force tablets (7) a plurality of resistance strain gages (6) are set at interval; And the lead-in wire of a plurality of resistance strain gages (6) is connected on the signal processor (8); Hollow cylinder card cover (3) is fixed together through outer fastening bolt (4) and arc tension force tablet (7), and hollow cylinder card cover (3) top and the bottom are fastened on the wire rope (1);
B, when wire rope (1) radial shrinkage or when expansion under the tension force effect; Each outer wall of arc tension force tablet (7) correspondingly shrinks on the ellipse short shaft direction or expansion; The strain of arc tension force tablet (7) causes the output voltage of resistance strain gage (6) to change, and at this moment signal processor (8) is gathered the output voltage changing value of each resistance strain gage (6);
C, set apply tension force under the setting changing value is
, detect the total voltage changing value
of each resistance strain gage (6) output under setting changing value
through signal processor (8);
D, wire rope (1) is applied tension force; Detect total detection voltage change
of the resistance strain gage (6) of wire rope (1) when stressed through signal processor (8), by following formula:
Draw the tension force change detected value
of wire rope (1);
E, send the tension data of wire rope to industrial computer, accomplish detection wire rope (1) tension force through signal processor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104177632A CN102419233A (en) | 2011-12-14 | 2011-12-14 | Device and method for detecting tension of elliptic sleeve type steel wire rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104177632A CN102419233A (en) | 2011-12-14 | 2011-12-14 | Device and method for detecting tension of elliptic sleeve type steel wire rope |
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|---|---|
| CN102419233A true CN102419233A (en) | 2012-04-18 |
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|---|---|---|---|
| CN2011104177632A Pending CN102419233A (en) | 2011-12-14 | 2011-12-14 | Device and method for detecting tension of elliptic sleeve type steel wire rope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091010A (en) * | 2013-02-04 | 2013-05-08 | 西北工业大学 | Dynamometer |
| CN103528745A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Device and method for monitoring tension of steel wire rope of FBG (fiber bragg grating) compression type mine hoisting equipment |
| CN106052929A (en) * | 2016-07-21 | 2016-10-26 | 华南理工大学 | Simple conveyer belt counterforce measurement device and method |
| CN111675125A (en) * | 2020-05-08 | 2020-09-18 | 中国电建集团华东勘测设计研究院有限公司 | Safety monitoring protection equipment for separating shaft lifting bucket from umbrella cap |
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| US4803888A (en) * | 1987-08-19 | 1989-02-14 | Pierre Choquet | Resistance wire tension measuring gauge |
| CN2476011Y (en) * | 2001-05-23 | 2002-02-06 | 祝向永 | Piezomagnetic cable tension sensor for post-tensioning anchor cable system |
| CN1979108A (en) * | 2006-12-07 | 2007-06-13 | 华南理工大学 | Steel twisted-line tension-force measuring device |
| CN101013056A (en) * | 2006-12-27 | 2007-08-08 | 广州大学 | Steel cable stretching force detecting apparatus |
| CN201255676Y (en) * | 2008-09-05 | 2009-06-10 | 宁波柯力电气制造有限公司 | Armored rope tension sensor |
| JP2009162602A (en) * | 2008-01-04 | 2009-07-23 | Toshiba Elevator Co Ltd | Apparatus for measuring rope tension of elevator |
| CN101493369A (en) * | 2009-03-02 | 2009-07-29 | 中山盛兴股份有限公司 | Curtain wall wire rope tension resistance strain measurement method and measurement device thereof |
| CN201680938U (en) * | 2010-05-26 | 2010-12-22 | 丰满发电厂 | Prestressed cable real-time monitoring device |
| CN202382896U (en) * | 2011-12-14 | 2012-08-15 | 中国矿业大学 | Elliptical sleeve type steel wire rope tension detection device |
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2011
- 2011-12-14 CN CN2011104177632A patent/CN102419233A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6370132A (en) * | 1986-09-11 | 1988-03-30 | Sumitomo Densetsu Kk | Method for measuring cable laying tension and cable laying tension detector |
| US4803888A (en) * | 1987-08-19 | 1989-02-14 | Pierre Choquet | Resistance wire tension measuring gauge |
| CN2476011Y (en) * | 2001-05-23 | 2002-02-06 | 祝向永 | Piezomagnetic cable tension sensor for post-tensioning anchor cable system |
| CN1979108A (en) * | 2006-12-07 | 2007-06-13 | 华南理工大学 | Steel twisted-line tension-force measuring device |
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| JP2009162602A (en) * | 2008-01-04 | 2009-07-23 | Toshiba Elevator Co Ltd | Apparatus for measuring rope tension of elevator |
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| CN101493369A (en) * | 2009-03-02 | 2009-07-29 | 中山盛兴股份有限公司 | Curtain wall wire rope tension resistance strain measurement method and measurement device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091010A (en) * | 2013-02-04 | 2013-05-08 | 西北工业大学 | Dynamometer |
| CN103528745A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Device and method for monitoring tension of steel wire rope of FBG (fiber bragg grating) compression type mine hoisting equipment |
| CN103528745B (en) * | 2013-10-25 | 2015-05-20 | 中国矿业大学 | Device and method for monitoring tension of steel wire rope of FBG (fiber bragg grating) compression type mine hoisting equipment |
| CN106052929A (en) * | 2016-07-21 | 2016-10-26 | 华南理工大学 | Simple conveyer belt counterforce measurement device and method |
| CN106052929B (en) * | 2016-07-21 | 2019-01-29 | 华南理工大学 | A kind of automatic conveying belt rebound force measuring device and its measurement method |
| CN111675125A (en) * | 2020-05-08 | 2020-09-18 | 中国电建集团华东勘测设计研究院有限公司 | Safety monitoring protection equipment for separating shaft lifting bucket from umbrella cap |
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Application publication date: 20120418 |