CN104109998A - Intelligent tensioning equipment for integral stay cables - Google Patents
Intelligent tensioning equipment for integral stay cables Download PDFInfo
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- CN104109998A CN104109998A CN201310161898.6A CN201310161898A CN104109998A CN 104109998 A CN104109998 A CN 104109998A CN 201310161898 A CN201310161898 A CN 201310161898A CN 104109998 A CN104109998 A CN 104109998A
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Abstract
The invention relates to intelligent tensioning equipment for integral stay cables. The intelligent tensioning equipment comprises a tensioning backing plate, an anchor backing plate, a jacking device, a support barrel and a tensioning nut. The jacking device is connected between the tensioning backing plate and the anchor backing plate, and the tensioning nut is positioned on the outer side of the tensioning backing plate and is connected with the support barrel in a threaded manner. The intelligent tensioning equipment for the integral stay cables has the advantages that execution of all actions can be automatically controlled by the aid of electric and hydraulic principles, work which cannot be manually completed can be implemented via the mechanical actions, accordingly, the labor intensity of constructors can be relieved, and the safety guarantee for the constructors can be enhanced.
Description
Technical field
The present invention relates to the whole bundle intelligent tensioning of a kind of suspension cable equipment.
Background technology
At present, in Design of Cable-Stayed Bridge field, suspension cable is partial to adopt parallel steel stranded wire drag-line more.Cable body is made up of without bonding high strength parallel galvanized steel strand multiply, and skin is protected by the synchronous hot extrude shaping of bilayer double-helix HDPE protecting pipe.Steel strand adopt and singlely reeve, single tendon stretch, single test-based examination, and can carry out single steel strand and adjust rope and replacing.But in Practical Project construction, according to the requirement of designing unit and construction monitoring unit, often need secondary or repeatedly adjust Suo Li to reach the bridge line style of design.If secondary is adjusted the mode of Suo Caiyong single tendon stretch, intermediate plate that so can the first stretch-draw of common existence can not take out arbitrarily, and new intermediate plate can not be installed; Adjust every steel strand discontinuity in rope process; While single steel strand can not be less than the problems such as the little tonnage Suo Li adjustment of an intermediate plate stroke.Therefore in work progress, steel strand stay cable should have the condition of whole cable stretching and reserved adjustment measure.
In view of this requirement, adjusted rope scheme according to former CONSTRUCTION OF CABLE-STAYED BRIDGE, be the adjustment that realizes whole cable force by the anchor system of the formations such as tensioning nut, anchor plate, jack, stretch-draw backing plate by controlling the elongation of jack.But this construction method is only applicable to, and cable body diameter is less, ground tackle quality light and the suspension cable bridge construction of stretching end on tower, no longer practical for the cable stayed bridge of parallel steel stranded wire drag-line.Reason is that parallel steel stranded wire drag-line cable body diameter is larger under normal circumstances, stretching end ground tackle appearance and size very greatly, supporting with it tensioning nut and stretch-draw backing plate weigh several tons, and most stretching ends are provided in a side of on beam, can not as stretch-draw on tower, stretch-draw backing plate, jack, tensioning nut be superposeed from bottom to top successively, but need in the other direction downward drag-line stretch-draw.Therefore in work progress, be impossible rely on manpower that ground tackle and jack have been held up to stretching construction, must rely on plant equipment to complete stretching construction to ensure the Correctly adjust of cord force of cable-stayed bridge.
Summary of the invention
To depend merely on manpower and cannot complete construction action in order to complete, alleviate people's labour intensity and improve labourer's inherently safe coefficient, the invention provides the whole bundle intelligent tensioning of a kind of suspension cable equipment, the elemental motion such as fuel feeding, oil return that can not only complete in stretching construction process can also complete the work such as stretch-draw segmentation, pressurize automatically, operation is very easy, reliable simultaneously, have good human-computer interaction, digitlization and personalized degree are higher, and concrete scheme of the present invention is as follows for achieving the above object:
The whole bundle intelligent tensioning of a kind of suspension cable equipment, comprising:
Stretch-draw backing plate, anchor plate, lift-up device, support tube and tensioning nut;
Described lift-up device is connected between described stretch-draw backing plate and described anchor plate, and described tensioning nut is positioned at the outside of described stretch-draw backing plate, and described tensioning nut is threaded with described support tube.
Preferably, also comprise gear ring and with described gear ring meshed gears, described gear ring is fixed in described tensioning nut outer wall, described gear and the first drive unit are in transmission connection.
Preferably, the work nut that also comprises fixed gear and engage with described fixed gear, described work nut is fixed in anchor plate, and described fixed gear and the second drive unit are in transmission connection.
Preferably, described stretch-draw backing plate is provided with retainer, and described retainer is connected with fairlead, and described fairlead mates and is positioned on the shift motion of described tensioning nut with described tensioning nut external diameter.
Preferably, also comprise ultra-thin jack, described ultra-thin jack is connected between described tensioning nut and described retainer.
Preferably, also comprise articulated stand, described stretch-draw backing plate and described articulated stand are hinged, between described stretch-draw backing plate and described articulated stand, are provided with hydraulic cylinder.
Preferably, also comprise lifting-up support, described lifting-up support and described articulated stand are slidably connected, and between described lifting-up support and described articulated stand, are provided with hydraulic cylinder.
Preferably, also comprise platform, described platform is provided with driving rack and track, and described lifting-up support is provided with travelling gear, and described travelling gear engages with described driving rack, and described lifting-up support and described platform are slidably connected.
The whole bundle intelligent tensioning of suspension cable provided by the invention equipment, everything is carried out and can be realized automatically and being controlled by electric, hydraulic principle, realize by mechanical action the work that manpower cannot complete, alleviated people's labour intensity, strengthened constructor's safety guarantee.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, does not form inappropriate limitation of the present invention, in the accompanying drawings:
Fig. 1 is embodiment of the present invention stretch-draw mechanism explosive view;
Fig. 2 is another angle explosive view of embodiment of the present invention stretch-draw mechanism;
Fig. 3 is embodiment of the present invention articulated stand structural representation;
Fig. 4 is embodiment of the present invention lifting-up support and platform structure schematic diagram;
Fig. 5 is embodiment of the present invention structural representation.
Detailed description of the invention
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment
As shown in Figures 1 and 2, the whole bundle intelligent tensioning of suspension cable equipment comprises stretch-draw mechanism: four stretch-draw jack 31 are fixed on and on same stretch-draw backing plate 32, form one " jack pad " combination, using jack 31 as lift-up device, four jack 31 are simultaneously stressed to reach the needed super large stretching force of stretching construction tune rope.A macropore is set in the middle of stretch-draw backing plate 32, in order to anchor cable, anchor head through and the screwing of tensioning nut 33.Anchor head is bolted on support tube 34, and support tube 34 inside are passed through in order to parallel steel stranded wire, and outside car has external screw thread and tensioning nut 33 to spin together.The internal thread of tensioning nut 33 and anchor head external thread rotary are combined the stretching force bearing between jack 31 and anchor cable.Tensioning nut 33, stretch-draw backing plate 32, jack 31, anchor head, parallel steel stranded wire anchor cable, anchor plate 35 form a tensioned anchorage system, regulate elongation and the stretching force size of anchor cable by controlling the elongation of jack 31 and stretching force size.
Before equipment work, tensioning nut 33 is what to separate with anchor head, after anchor cable stretching single steel strand, anchor head is fixed on beam.This just needs equipment to have the ability that tensioning nut 33 and anchor head are screwed.Therefore fix a gear ring 1 at tensioning nut 33 cylindricals and engage with the gear 2 being fixed on stretch-draw backing plate 32, gear 2 coordinates transmission tensioning nut 33 to rotate needed moment of torsion with the spline 4 on bearing support 3.In tensioning nut 33 inside, a guide cylinder 5 is set, guide cylinder 5 external diameters equate with anchor head major diameter of thread, the inner reserved space that can hold steel strand simultaneously.Guide cylinder 5 is by having coordinated the guide function to tensioning nut 33 with the fairlead 7 on the retainer 6 being fixed on stretch-draw backing plate 32.A ultrathin hydraulic jack 8 is installed on retainer 6, and the piston rod of ultra-thin jack 8 acts on guide cylinder 5, provides nut screwing needed axial force in process by the back and forth movement of ultra-thin jack 8 pistons.
After stretch-draw finishes, the reducer 9 fixing in week on stretch-draw backing plate 32 rotates by chain-driving splined shaft, the fixed gear 12 transferring torque on splined shaft is with the gear ring of determining being automatically connected on work nut 13 to rotate, work nut is fixed in anchor plate 35, taking reductor 9 as second drive units by locked work nut on anchor plate 35 to keep the Suo Li of drag-line constant.
As shown in Fig. 3, Fig. 5, under beam in stretching construction process, because anchor cable and horizontal plane do not have 25 °～70 ° of certain angles not etc., and the angle of every anchor cable is not identical.This angle that just needs constantly to adjust between tensioning tooling and horizontal plane moves with the stretching construction that adapts to different anchor cable different angles.Therefore design stretch-draw backing plate 32 one end by the first hinged lower end of being fixed on an articulated stand 15 of bearing pin 14, the other end is articulated with articulated stand on epimere with hydraulic cylinder 16 by the second bearing pin 17 by swing type engineering, adjusts the angle between stretch-draw backing plate 32 and horizontal plane by the extension elongation of controlling oscillating motor 16.
As shown in Figure 4, Figure 5, tensioning tooling comprises that welding support, stretch-draw backing plate 32, tensioning nut 33, fairlead, guide cylinder and jack 31 weight are larger, cannot rely on manpower and common facility to be carried to anchor head place height and ensure anchor head and the axis of the central axis of anchor cable and tensioning nut 33 coincides.Therefore design realizes rising and the down maneuver of tensioning tooling in the vertical direction with the lifting of four hydraulic jacks 18.Design a lifting-up support 19 in order to the support 15 that is fixedly hinged, articulated stand 15 is moved up and down at the inner hydraulic cylinder 18 that relies on of lifting-up support 19.
As shown in Figure 4, Figure 5, because anchor head and work nut and anchor cable self have certain length, project to the component that has a displacement on horizontal plane.Therefore design " gear-tooth bar " transmission system, control tensioning tooling motion in the horizontal direction by the rotation of gear.Platform 20 of bottom design is in order to install driving rack 21 and the track 22 for lifting-up support 19 horizontal direction walkings for this reason.Engage transmitting torque and complete lifting-up support 19 and tensioning tooling with respect to platform 20 action that moves forward and backward in the horizontal direction with being arranged on tooth bar 21 on platform 20 by the travelling gear 23 installed on lifting-up support 19, be arranged on 6 slide blocks 24 of lifting-up support 19 bottoms and the track 22 being arranged on platform 20 and complete the guide effect in horizontal direction.
The technical scheme above embodiment of the present invention being provided is described in detail, applied principle and the embodiment of specific case to the embodiment of the present invention herein and set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the present invention; , for one of ordinary skill in the art, according to the embodiment of the present invention, in detailed description of the invention and range of application, all will change, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (8)
1. the whole bundle intelligent tensioning of a suspension cable equipment, is characterized in that comprising:
Stretch-draw backing plate, anchor plate, lift-up device, support tube and tensioning nut;
Described lift-up device is connected between described stretch-draw backing plate and described anchor plate, and described tensioning nut is positioned at the outside of described stretch-draw backing plate, and described tensioning nut is threaded with described support tube.
2. the whole bundle intelligent tensioning of suspension cable as claimed in claim 1 equipment, is characterized in that:
Also comprise gear ring and with described gear ring meshed gears, described gear ring is fixed in described tensioning nut outer wall, described gear and the first drive unit are in transmission connection.
3. the whole bundle intelligent tensioning of suspension cable as claimed in claim 1 equipment, is characterized in that:
The work nut that also comprises fixed gear and engage with described fixed gear, described work nut is fixed in described support tube outer wall, and described fixed gear and the second drive unit are in transmission connection.
4. the whole bundle intelligent tensioning of suspension cable as claimed in claim 1 equipment, is characterized in that:
Described stretch-draw backing plate is provided with retainer, and described retainer is connected with fairlead, and described fairlead mates and is positioned on the shift motion of described tensioning nut with described tensioning nut external diameter.
5. the whole bundle intelligent tensioning of suspension cable as claimed in claim 4 equipment, is characterized in that:
Also comprise ultra-thin jack, described ultra-thin jack is connected between described tensioning nut and described retainer.
6. the whole bundle intelligent tensioning of suspension cable as claimed in claim 1 equipment, is characterized in that:
Also comprise articulated stand, described stretch-draw backing plate and described articulated stand are hinged, between described stretch-draw backing plate and described articulated stand, are provided with hydraulic cylinder.
7. the whole bundle intelligent tensioning of suspension cable as claimed in claim 6 equipment, is characterized in that:
Also comprise lifting-up support, described lifting-up support and described articulated stand are slidably connected, and between described lifting-up support and described articulated stand, are provided with hydraulic cylinder.
8. the whole bundle intelligent tensioning of suspension cable as claimed in claim 7 equipment, is characterized in that:
Also comprise platform, described platform is provided with driving rack and track, and described lifting-up support is provided with travelling gear, and described travelling gear engages with described driving rack, and described lifting-up support and described platform are slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161898.6A CN104109998B (en) | 2013-04-19 | 2013-04-19 | Suspension cable whole bundle intelligent tensioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161898.6A CN104109998B (en) | 2013-04-19 | 2013-04-19 | Suspension cable whole bundle intelligent tensioning equipment |
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| Publication Number | Publication Date |
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| CN104109998A true CN104109998A (en) | 2014-10-22 |
| CN104109998B CN104109998B (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310161898.6A Active CN104109998B (en) | 2013-04-19 | 2013-04-19 | Suspension cable whole bundle intelligent tensioning equipment |
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| CN (1) | CN104109998B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762884A (en) * | 2015-04-30 | 2015-07-08 | 湖南联智桥隧技术有限公司 | Control method of multi-point synchronous intelligent tensioning system |
| CN105862608A (en) * | 2016-05-20 | 2016-08-17 | 东南大学 | Automatic tensioning system and method of prestress fiber plate reinforcing beam plate |
| CN106812070A (en) * | 2017-03-22 | 2017-06-09 | 贵州大学 | A kind of arch bridge cable-hoisting construction stayed knotting method knotted rope tensioning equipment |
| CN108908693A (en) * | 2018-06-29 | 2018-11-30 | 周兆弟 | A kind of prestressed, reinforced stretching machine |
| CN110725210A (en) * | 2019-05-01 | 2020-01-24 | 河南交院工程技术有限公司 | Inhaul cable stepping tensioning construction method and tensioning equipment |
| CN112176881A (en) * | 2020-10-16 | 2021-01-05 | 盐城市双强管桩有限公司 | Whole intelligent stretch-draw equipment of restrainting of suspension cable |
| CN113481890A (en) * | 2021-07-20 | 2021-10-08 | 重庆万桥交通科技发展有限公司 | Stay cable anchor ring dismounting device |
Citations (5)
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| JPH0626012A (en) * | 1992-07-09 | 1994-02-01 | Kyokuto Kogen Concrete Shinko Kk | Cable tension grip for cable stayed bridge and loading carriage thereof |
| CN101761035A (en) * | 2010-01-14 | 2010-06-30 | 中交第二公路工程局有限公司 | Soft and hard combined traction method for long-cable installation of cable-stayed bridge |
| CN201923818U (en) * | 2010-11-23 | 2011-08-10 | 江苏法尔胜新日制铁缆索有限公司 | Combined puncturing-type big-tonnage jack |
| KR20120004908A (en) * | 2010-12-13 | 2012-01-13 | 케이블텍 주식회사 | Apparatus for applying tension force to cable |
| CN102776830A (en) * | 2012-08-10 | 2012-11-14 | 浙江省交通规划设计研究院 | Large-tonnage low-retraction pres-stress anchor and tightening device thereof |
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2013
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Patent Citations (5)
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| JPH0626012A (en) * | 1992-07-09 | 1994-02-01 | Kyokuto Kogen Concrete Shinko Kk | Cable tension grip for cable stayed bridge and loading carriage thereof |
| CN101761035A (en) * | 2010-01-14 | 2010-06-30 | 中交第二公路工程局有限公司 | Soft and hard combined traction method for long-cable installation of cable-stayed bridge |
| CN201923818U (en) * | 2010-11-23 | 2011-08-10 | 江苏法尔胜新日制铁缆索有限公司 | Combined puncturing-type big-tonnage jack |
| KR20120004908A (en) * | 2010-12-13 | 2012-01-13 | 케이블텍 주식회사 | Apparatus for applying tension force to cable |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762884A (en) * | 2015-04-30 | 2015-07-08 | 湖南联智桥隧技术有限公司 | Control method of multi-point synchronous intelligent tensioning system |
| CN104762884B (en) * | 2015-04-30 | 2017-04-05 | 湖南联智桥隧技术有限公司 | The control method of Multipoint synchronous intelligent tensioning system |
| CN105862608A (en) * | 2016-05-20 | 2016-08-17 | 东南大学 | Automatic tensioning system and method of prestress fiber plate reinforcing beam plate |
| CN106812070A (en) * | 2017-03-22 | 2017-06-09 | 贵州大学 | A kind of arch bridge cable-hoisting construction stayed knotting method knotted rope tensioning equipment |
| CN108908693A (en) * | 2018-06-29 | 2018-11-30 | 周兆弟 | A kind of prestressed, reinforced stretching machine |
| CN108908693B (en) * | 2018-06-29 | 2024-03-15 | 周兆弟 | Steel bar prestress tensioning machine |
| CN110725210A (en) * | 2019-05-01 | 2020-01-24 | 河南交院工程技术有限公司 | Inhaul cable stepping tensioning construction method and tensioning equipment |
| CN110725210B (en) * | 2019-05-01 | 2021-09-17 | 河南交院工程技术集团有限公司 | Inhaul cable stepping tensioning construction method and tensioning equipment |
| CN112176881A (en) * | 2020-10-16 | 2021-01-05 | 盐城市双强管桩有限公司 | Whole intelligent stretch-draw equipment of restrainting of suspension cable |
| CN113481890A (en) * | 2021-07-20 | 2021-10-08 | 重庆万桥交通科技发展有限公司 | Stay cable anchor ring dismounting device |
| CN113481890B (en) * | 2021-07-20 | 2022-12-23 | 重庆万桥交通科技发展有限公司 | Stay cable anchor ring dismounting device |
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|---|---|
| CN104109998B (en) | 2016-12-28 |
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