CN202903390U - Stay cable force output connector - Google Patents
Stay cable force output connector Download PDFInfo
- Publication number
- CN202903390U CN202903390U CN 201220577787 CN201220577787U CN202903390U CN 202903390 U CN202903390 U CN 202903390U CN 201220577787 CN201220577787 CN 201220577787 CN 201220577787 U CN201220577787 U CN 201220577787U CN 202903390 U CN202903390 U CN 202903390U
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- pulling force
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- cable power
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Abstract
The utility model provides a stay cable force output connector. A terminal of a stay cable is connected with an anchor head, and the anchor head comprises an anchor cup and a concretionary material and a wire separation plate which are arranged inside the anchor cup. The stay cable is composed of a plurality of tension wires each having an end fixedly connected with the wire separation plate, and the end of at least one tension wire is fixedly connected with a connection head. The connection head is coated by an insulation sleeve, and the tension wire connected with the connection head is sleeved by an insulation pipe, the connection head is threadingly connected with a front end of a tension sensor, and a rear end of the tension sensor is fixedly connected with the wire separation plate. According to the stay cable force output connector provided by the utility model, a technology which can accurately reflect the current cable force of the stay cable is provided, such that the stress state of the stay cable is available, providing a basis for the control and adjustment of the stay cable force and the judgment of the safety state of the stay cable in an operation stage, and the cost is relatively low.
Description
Technical field
The utility model relates to a kind of Cable power out connector.
Background technology
Drag-line is the important component of the Cable Structure such as suspension bridge, cable-stayed bridge building, and the real-time Suo Li of drag-line is that engineers is judged whether building meets design requirement, whether runed the important evidence of safety.Usually obtain Cable power with following methods at present:
1, load with the jack pair drag-line, " oil pressure-pulling force " relation formula of demarcating in advance according to lifting jack draws.
2, with frequency spectrograph obtain that the characteristic frequency of drag-line has been installed, in conjunction with the specifications parameter of drag-line, calculate with experimental formula.
When 3, drag-line was installed, the setting pressure sensor drew under the anchored end nut.
That said method is drawn all is the whole Suo Li of drag-line.Method 1 must obtain by drag-line is loaded, and the operation input ratio is larger, generally uses in drag-line installation process.Rear two kinds of methods can be applied in the inhaul cable operation stage.The frequency method of comparing is easier, but the Suo Li error that obtains is large, and the Suo Li accuracy that pressure transducer obtains is high.The pressure transducer usage comparison is many in the bridge structure monitoring at present.But there is following defective in pressure transducer measuring rope power: 1, cost is high, generally adopts installation method on the drag-line of part characteristic feature position, to reduce construction costs.If 2 think that demonstration Suo Li is undesired, demarcate, change relatively difficulty.That 3, obtain is the whole Suo Li of drag-line, is difficult to reflect the extent of damage of drag-line section of steel wire.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of drag-line can both obtain Suo Li from factory's finished product detection under operation use state, and can change, and relatively inexpensive Cable power out connector is to overcome the defects of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of Cable power out connector, the end of described drag-line is connected with anchor head, described anchor head comprises an anchor cup and is positioned at the cementing material of anchor cup, wire sub-panel, described drag-line is made of many pulling force silks, the end of every pulling force silk all is fixedly connected with wire sub-panel, the end of at least one pulling force silk is fixedly connected with a connector, the outer surface cover of connector has spacer sleeve, cover has isolated tube on the pulling force silk that is connected with connector, connector is connected by the front end of screw thread with a pulling force sensor, and the rear end of pulling force sensor is fixedly connected with wire sub-panel.
Preferably, described wire sub-panel is provided with through hole, and the front end of described pulling force sensor passes through hole and is connected with connector, and the rear end of described pulling force sensor is provided with screw thread and is furnished with nut, and the external diameter of nut is greater than the diameter of through hole on the wire sub-panel.
Further, the rear end of described spacer sleeve is provided with internal thread and is fixed on the wire sub-panel by a threaded connector, is provided with the endoporus that the front end for pulling force sensor passes in the threaded connector.
Further, described cementing material is epoxy resin or ormolu.
Further, the pulling force silk surface of described isolated tube inside scribbles isolation fat.
Further, the xsect of described spacer sleeve and connector all has orthohexagonal exterior contour, also is provided with the regular hexagon endoporus in the spacer sleeve and matches with described connector.
Further, described pulling force silk is steel wire, aramid fiber or carbon fiber.
Further, described pulling force sensor is fiber-optic grating sensor or electric resistance sensor.
The another kind of technical scheme that the utility model adopts: a kind of Cable power out connector, the end of described drag-line is connected with anchor head, described anchor head comprises an anchor cup and is positioned at the cementing material of anchor cup, wire sub-panel, described drag-line is made of many pulling force silks, the end of every pulling force silk all is fixedly connected with wire sub-panel, the end of at least one pulling force silk is fixedly connected with a connector, the outer surface cover of connector has spacer sleeve, cover has isolated tube on the pulling force silk that is connected with connector, connect a bolt between wire sub-panel and connector, the through hole that described bolt passes on the wire sub-panel is threaded with connector.The technical program is except replace the pulling force sensor other technologies feature invariant with bolt.
As mentioned above, Cable power out connector of the present utility model is embedded in connector in the anchor head, after pulling force silk and wire sub-panel fix, pulling force sensor screws in from the rear end, thereby therefore the measurement pulling force, the utlity model has following beneficial effect: a kind of technology that can accurately reflect current Cable power is provided, the Cable forces state is become as can be known, be the adjustment of Cable power, control, and the judgement of inhaul cable operation stage safe condition provides according to and has been convenient to and changed, relatively inexpensive.
Description of drawings
Fig. 1 is the structure assembling schematic diagram of Cable power out connector the first embodiment.
Fig. 2 is the structure assembling schematic diagram of Cable power out connector the second embodiment.
Fig. 3 is the installation site planimetric map of Cable power out connector.
Among the figure: 1 connector, 2 anchor heads, 3 spacer sleeves, 4 threaded connectors
5 pulling force sensors, 6 isolated tubes, 7 isolation fat, 8 cementing materials
9 wire sub-panels, 10 drag-lines, 11 anchor cups, 12 protective jackets
17 fluid sealants, 13 anchoring nuts, 16 connecting cylinders, 14 pulling force silks
15 nuts, 18 bolts
Embodiment
The structure that Figure of description illustrates, ratio, size etc., equal contents in order to cooperate instructions to disclose only, understand and reading for person skilled in the art scholar, be not to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this instructions as " on ", the term such as D score, 'fornt', 'back', " centre ", also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
By Fig. 1 and Fig. 3 as can be known, a kind of Cable power out connector, the end of described drag-line 10 is connected with anchor head 2, anchor head 2 comprises an anchor cup 11 and is positioned at cementing material 8, the wire sub-panel 9 of anchor cup 11, described cementing material 8 is filled in the cavity between anchor cup 11 and the drag-line 10, described cementing material 8 can be the chill casting anchoring knot material that epoxy resin etc. consists of, and also can be the hot casting anchor cementing material that ormolu etc. consists of.Described drag-line 10 is made of many pulling force silks 14, the end of every pulling force silk 14 all is fixedly connected with wire sub-panel 9, wherein, have at least the end of a pulling force silk 14 to be fixedly connected with a connector 1, described pulling force silk 14 can be steel wire, aramid fiber or carbon fiber.The outer surface cover of connector 1 has spacer sleeve 3, the xsect of described spacer sleeve 3 and connector 1 all has orthohexagonal exterior contour, also be provided with the regular hexagon endoporus in the spacer sleeve 3 and match with described connector 1, the purpose of this design be prevent from when screwing in pulling force sensor 5, occurring connector 1 rotate skid, fixing not firm.There are isolated tube 6, pulling force silk 14 surfaces of described isolated tube 6 inside to scribble isolation fat 7 with cover on the pulling force silk 14 that connector 1 is connected.Above-mentioned spacer sleeve 3, isolated tube 6 and isolation fat 7 etc. form separation layer, make detected pulling force silk 14 and cementing material 8 isolation, guarantee that the force-bearing situation of detected pulling force silk can accurately be delivered on the pulling force sensor 5.The rear end of described spacer sleeve 3 is provided with internal thread and is fixed on the wire sub-panel 9 by a threaded connector 4, is provided with the endoporus that the front end for pulling force sensor 5 passes in the threaded connector 4.Connector 1 is connected by the front end of screw thread with a pulling force sensor 5, and the rear end of pulling force sensor 5 is fixedly connected with wire sub-panel 9.Described wire sub-panel 9 is provided with through hole, the front end of described pulling force sensor 5 passes through hole and is connected with connector 1, the rear end of described pulling force sensor 5 is provided with screw thread and is furnished with nut 15, the external diameter of nut 15 is greater than the diameter of through hole on the wire sub-panel 9, like this, pulling force sensor 5 just is stuck on the through hole of wire sub-panel 9 by nut 15, like this, applies external force pulling nut 15 and just can carry out finished product detection or pulling force demarcation to drag-line.Pulling force sensor 5 not only can adopt fiber-optic grating sensor, also can adopt the cheap sensors of price such as electric resistance sensor.
T=n·p
T--Cable power
N--form the pulling force silk radical of drag-line
P--sensor output value of thrust
Measuring principle of the present utility model is: the pulling force silk cross section that forms drag-line is basic identical, and error is very little.When making drag-line, the pulling force silk is concentrated and is cemented on the anchor head, passes to building structure by anchor head again.When the drag-line bearing tension, each the root pulling force silk axial force that forms drag-line is identical.If detect the pulling force of certain root pulling force silk in the drag-line with sensor, namely can obtain according to the quantity that forms drag-line pulling force silk the whole Suo Li of this drag-line, incidence relation, the formation calibration curve that also can demarcate in the super stretching process of drag-line between the pulling force of the overall Suo Li of drag-line and single pulling force silk were used in the later stage.Namely set up calibration curve according to following formula,
T=A·p
A--demarcate the constant that concerns that obtains, other symbols are identical with the front formula.
If output pulling force sensor 5 lost efficacy, can again change, method is as follows:
Obtain drag-line current cable power with other Suo Li detection meanss, and obtain the value of thrust of single pulling force silk with following formula.
p0=T/n
P0--the value of thrust of single pulling force silk, other symbols are identical with the front formula.
Remove pulling force sensor, new pulling force sensor is installed after, the p0 value is adjusted in output.
After the pulling force silk cross section that forms drag-line is impaired, Suo Li will redistribute in the residue section of steel wire, cause the pulling force of the pulling force silk that detects to change.Around this principle, large variation does not occur in the factor that affects Cable power when the residing structural load of drag-line that this device is installed, environmental baseline etc., and during output value of thrust mutation, the utility model can be judged the extent of damage in drag-line pulling force silk cross section accordingly, provides decision-making foundation for whether changing drag-line.Namely according to the historical record and the rate of change of current value of thrust of connector output value of thrust, calculate the extent of damage of judgement drag-line section of steel wire, provide foundation for whether changing drag-line:
η=（p2–p1）/p1·%
η--pulling force silk cross section loss percentage
P1--output value of thrust under normal circumstances
P2--the value of thrust of current pulling force sensor output
Above-mentioned the first embodiment of the present utility model is used for Cable power is carried out dynamically continuous detecting.
Such as Fig. 2, shown in Figure 3, the second embodiment of the present utility model is used for that Cable power is carried out discontinuity and detects, be connected with anchor head 2 in the end of drag-line 10 equally, described anchor head 2 comprises an anchor cup 11 and is positioned at cementing material 8, the wire sub-panel 9 of anchor cup 11, described drag-line 10 is made of many pulling force silks 14, the end of every pulling force silk 14 all is fixedly connected with wire sub-panel 9, the end of at least one pulling force silk 14 is fixedly connected with a connector 1, the outer surface cover of connector 1 has spacer sleeve 3, with cover on the pulling force silk 14 that connector 1 is connected isolated tube 6 is arranged.But present embodiment is to connect a bolt 18 between wire sub-panel 9 and connector 1, and the through hole that described bolt 18 passes on the wire sub-panel 9 is threaded with the connector 1 of inboard.
Present embodiment and and the key distinction of the first embodiment be that bolt 18 and connector 1 are threaded described pulling force sensor 5 and with it bolt of attaching nut 15 usefulness 18 replacements, bolt head is pressed on the outside surface of wire sub-panel.Like this in the time need to measuring the pulling force of pulling force silk 14, only need the bolt head of bolt 18 is connected with a pulling force sensor, apply simultaneously external force and be pulled outwardly sensor, when bolt head to the pressure of wire sub-panel 9 outside surfaces just during vanishing, institute's externally applied forces value is the value of thrust of drag-line 14.According to " pulling force-extension " relation (Hooke's law), in bolt anchoring power transmittance process, the pulling force silk does not participate in distortion, and external force (stretching force) increases fast, and elongation is without significant change; After the transmission of bolt anchoring power was finished, the pulling force silk participated in distortion, because the pulling force silk is long, the variation of power value needs larger elongation, and not obvious even external force increases, elongation also can significantly increase.Judge accordingly bolt anchoring power whether just in time with the external force balance, thereby obtain the value of thrust of pulling force silk.Cable calculation of force method is consistent with a upper embodiment.
In sum, Cable power out connector device of the present utility model can solve the problems such as the extent of damage that Cable power measuring error is large, cost is high, the demarcation replacing is difficult, be difficult to reflect single pulling force silk cross section.Therefore having very high when the drag-line cable force measurement of reality is use value.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.The utility model also many aspects can also improve under the prerequisite of overall thought, such as connected mode of matching relationship, connector and the pulling force sensor of connector and spacer sleeve etc.Therefore, all can be under spirit of the present utility model and category for person skilled in the art scholar, can modify or change above-described embodiment.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (9)
1. Cable power out connector, the end of described drag-line (10) is connected with anchor head (2), described anchor head (2) comprises an anchor cup (11) and is positioned at the cementing material (8) of anchor cup (11), wire sub-panel (9), described drag-line (10) is made of many pulling force silks (14), the end of every pulling force silk (14) all is fixedly connected with wire sub-panel (9), it is characterized in that: the end of at least one pulling force silk (14) is fixedly connected with a connector (1), the outer surface cover of connector (1) has spacer sleeve (3), the upper cover of the pulling force silk (14) that is connected with connector (1) has isolated tube (6), connector (1) is connected by the front end of screw thread with a pulling force sensor (5), and the rear end of pulling force sensor (5) is fixedly connected with wire sub-panel (9).
2. Cable power out connector according to claim 1, it is characterized in that: described wire sub-panel (9) is provided with through hole, the front end of described pulling force sensor (5) passes through hole and is connected with connector (1), the rear end of described pulling force sensor (5) is provided with screw thread and is furnished with nut (15), and the external diameter of nut (15) is greater than the diameter of the upper through hole of wire sub-panel (9).
3. Cable power out connector according to claim 1, it is characterized in that: the rear end of described spacer sleeve (3) is provided with internal thread and being fixed on the wire sub-panel (9) by a threaded connector (4), is provided with the endoporus that the front end of confession pulling force sensor (5) passes in the threaded connector (4).
4. Cable power out connector according to claim 1, it is characterized in that: described cementing material (8) is epoxy resin or ormolu.
5. Cable power out connector according to claim 1 is characterized in that: inner pulling force silk (14) surface of described isolated tube (6) scribbles isolation fat (7).
6. Cable power out connector according to claim 1, it is characterized in that: the xsect of described spacer sleeve (3) and connector (1) all has orthohexagonal exterior contour, also is provided with the regular hexagon endoporus in the spacer sleeve (3) and matches with described connector (1).
7. Cable power out connector according to claim 1, it is characterized in that: described pulling force silk (14) is steel wire, aramid fiber or carbon fiber.
8. Cable power out connector according to claim 1, it is characterized in that: described pulling force sensor (5) is fiber-optic grating sensor or electric resistance sensor.
9. Cable power out connector, the end of described drag-line (10) is connected with anchor head (2), described anchor head (2) comprises an anchor cup (11) and is positioned at the cementing material (8) of anchor cup (11), wire sub-panel (9), described drag-line (10) is made of many pulling force silks (14), the end of every pulling force silk (14) all is fixedly connected with wire sub-panel (9), it is characterized in that: the end of at least one pulling force silk (14) is fixedly connected with a connector (1), the outer surface cover of connector (1) has spacer sleeve (3), the upper cover of the pulling force silk (14) that is connected with connector (1) has isolated tube (6), connect a bolt (18) between wire sub-panel (9) and connector (1), the through hole that described bolt (18) passes on the wire sub-panel (9) is threaded with connector (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577787 CN202903390U (en) | 2012-03-29 | 2012-11-05 | Stay cable force output connector |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220126245 | 2012-03-29 | ||
| CN201220126245.5 | 2012-03-29 | ||
| CN 201220577787 CN202903390U (en) | 2012-03-29 | 2012-11-05 | Stay cable force output connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903390U true CN202903390U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577787 Expired - Fee Related CN202903390U (en) | 2012-03-29 | 2012-11-05 | Stay cable force output connector |
Country Status (1)
| Country | Link |
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| CN (1) | CN202903390U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879881A (en) * | 2014-03-10 | 2014-06-25 | 中联重科股份有限公司 | Safe running control method, device and system of hoisting hook of crane and crane |
| CN106441686A (en) * | 2016-12-09 | 2017-02-22 | 柳州欧维姆结构检测技术有限公司 | Intelligent stay cable with cable force measuring structure and method thereof for achieving cable force measurement |
| CN109724740A (en) * | 2019-01-12 | 2019-05-07 | 尚廷东 | A kind of drag-line bridge cable force measurement device |
| CN109813482A (en) * | 2019-01-12 | 2019-05-28 | 尚廷东 | A kind of drag-line can be realized tonometry |
| CN110455441A (en) * | 2019-07-24 | 2019-11-15 | 河海大学 | A kind of external tendon prestressing force testing auxiliary device |
| CN114526685A (en) * | 2022-02-15 | 2022-05-24 | 柳州欧维姆机械股份有限公司 | Replaceable fiber grating intelligent inhaul cable and replacement method thereof |
-
2012
- 2012-11-05 CN CN 201220577787 patent/CN202903390U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879881A (en) * | 2014-03-10 | 2014-06-25 | 中联重科股份有限公司 | Safe running control method, device and system of hoisting hook of crane and crane |
| CN103879881B (en) * | 2014-03-10 | 2016-05-11 | 中联重科股份有限公司 | Suspension hook safety operating control method, device, system and the crane of crane |
| CN106441686A (en) * | 2016-12-09 | 2017-02-22 | 柳州欧维姆结构检测技术有限公司 | Intelligent stay cable with cable force measuring structure and method thereof for achieving cable force measurement |
| CN109724740A (en) * | 2019-01-12 | 2019-05-07 | 尚廷东 | A kind of drag-line bridge cable force measurement device |
| CN109813482A (en) * | 2019-01-12 | 2019-05-28 | 尚廷东 | A kind of drag-line can be realized tonometry |
| CN109724740B (en) * | 2019-01-12 | 2024-04-16 | 尚廷东 | Cable force measuring device for inhaul cable bridge |
| CN110455441A (en) * | 2019-07-24 | 2019-11-15 | 河海大学 | A kind of external tendon prestressing force testing auxiliary device |
| CN114526685A (en) * | 2022-02-15 | 2022-05-24 | 柳州欧维姆机械股份有限公司 | Replaceable fiber grating intelligent inhaul cable and replacement method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20161105 |