CN104109998B - Suspension cable whole bundle intelligent tensioning equipment - Google Patents
Suspension cable whole bundle intelligent tensioning equipment Download PDFInfo
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- CN104109998B CN104109998B CN201310161898.6A CN201310161898A CN104109998B CN 104109998 B CN104109998 B CN 104109998B CN 201310161898 A CN201310161898 A CN 201310161898A CN 104109998 B CN104109998 B CN 104109998B
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- stretch
- backing plate
- suspension cable
- tensioning
- whole bundle
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Abstract
The present invention relates to a kind of suspension cable whole bundle intelligent tensioning equipment, including: stretch-draw backing plate, anchor plate, jacking apparatus, support tube and tensioning nut；Described jacking apparatus 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 threadeded with described support tube.The suspension cable whole bundle intelligent tensioning equipment that the present invention provides, everything performs to realize automatically controlling by electric, hydraulic principle, realizes, by mechanical action, the work that manpower cannot complete, alleviate the labor intensity of people, enhance the safety guarantee of workmen.
Description
Technical field
The present invention relates to a kind of suspension cable whole bundle intelligent tensioning equipment.
Background technology
At present, in Design of Cable-Stayed Bridge field, suspension cable is partial to use parallel steel stranded wire drag-line more.Cable body
Being made up of multiply soap-free emulsion polymeization high intensity parallel galvanized steel strand wires, outer layer is synchronized hot extrusion by bilayer and shapes Double helix
Line HDPE protecting pipe protects.Steel strand wires use single reeve, single tendon stretch, single test-based examination, and
Single steel strand can be carried out and adjust rope and replacing.But in Practical Project is constructed, according to designing unit and executing
The requirement of work monitoring unit, generally requires secondary or repeatedly adjusts Suo Li to reach the bridge line style of design.
If secondary adjusts the mode of Suo Caiyong single tendon stretch, then the intermediate plate that can commonly there is first stretch-draw can not be appointed
Meaning is taken out, and new intermediate plate can not be installed；Adjust every steel strand wires discontinuity during rope；The most single steel
Twisted wire can not carry out the problems such as little tonnage cable force adjustment less than an intermediate plate stroke.Therefore in construction
During steel strand stay cable should have the condition of whole cable stretching, and reserved regulating measures.
In view of this requirement, adjusted rope scheme according to former CONSTRUCTION OF CABLE-STAYED BRIDGE, be by tensioning nut, anchor
The anchor system that backing plate, jack, stretch-draw backing plate etc. are constituted realizes by controlling the elongation of jack
The adjustment of whole cable force.But this construction method is only applicable to, and cable body diameter is less, anchorage light weight and
Pull end suspension cable bridge construction on tower, the cable-stayed bridge for parallel steel stranded wire drag-line is the most practical.
Reason is that parallel steel stranded wire drag-line cable body is relatively large in diameter under normal circumstances, and stretching end anchorage overall dimensions is very
Greatly, matched tensioning nut and stretch-draw backing plate weigh several tons, and most stretching end is to be located at beam
On, it is impossible to as stretch-draw on tower, stretch-draw backing plate, jack, tensioning nut are folded the most successively
Add, but need opposite direction by downward for drag-line stretch-draw.Therefore it is impossible to rely on manpower in work progress
Anchorage and jack have been held up stretching construction, it is necessary to rely on plant equipment complete stretching construction with
Ensure the correct adjustment of cord force of cable-stayed bridge.
Summary of the invention
Construction action cannot be completed in order to complete to depend merely on manpower, alleviate the labor intensity of people and improve labourer
Inherently safe coefficient, the present invention provides a kind of suspension cable whole bundle intelligent tensioning equipment, can not only complete
Draw the basic actss such as the fuel feeding in work progress, oil return can also be automatically performed the work such as stretch-draw segmentation, pressurize,
Operate the easiest, reliable simultaneously, there is good human-computer interaction, digitized and personalization level relatively
Height, the concrete scheme of the present invention is as follows for achieving the above object:
A kind of suspension cable whole bundle intelligent tensioning equipment, including:
Stretch-draw backing plate, anchor plate, jacking apparatus, support tube and tensioning nut；
Described jacking apparatus is connected between described stretch-draw backing plate and described anchor plate, described tensioning nut position
In the outside of described stretch-draw backing plate, described tensioning nut is threadeded with described support tube.
Preferably, also include gear ring and with described gear ring meshed gears, described gear ring is fixed in described
Nut outer wall, described gear and the first driving means is drawn to be in transmission connection.
Preferably, fixed gear and the work nut engaged with described fixed gear, described work nut are also included
It is fixed in anchor plate, described fixed gear and the second driving means to be in transmission connection.
Preferably, described stretch-draw backing plate is provided with retainer, and described retainer is connected with fairlead, described
Fairlead mates with described tensioning nut external diameter and is positioned on the shift motion of described tensioning nut.
Preferably, also include that ultra-thin jack, described ultra-thin jack are connected to described tensioning nut and institute
State between retainer.
Preferably, also including articulated stand, described stretch-draw backing plate is hinged with described articulated stand, described
Draw and be provided with hydraulic cylinder between backing plate and described articulated stand.
Preferably, also include that lifting-up support, described lifting-up support are slidably connected with described articulated stand, institute
State and be provided with hydraulic cylinder between lifting-up support and described articulated stand.
Preferably, also including that platform, described platform are provided with driving rack and track, described lifting-up support sets
There are travelling gear, described travelling gear to engage with described driving rack, and described lifting-up support is flat with described
Platform is slidably connected.
The suspension cable whole bundle intelligent tensioning equipment that the present invention provides, everything performs can be by electricity air-liquid
Pressure principle realizes automatically controlling, and realizes, by mechanical action, the work that manpower cannot complete, alleviates people's
Labor intensity, enhances the safety guarantee of workmen.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the application
Point, it is not intended that 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
The present invention is described in detail, in the signal of this present invention below in conjunction with accompanying drawing and specific embodiment
Property embodiment and explanation be used for explaining the present invention, but not as a limitation of the invention.
Embodiment
As shown in Figures 1 and 2, suspension cable whole bundle intelligent tensioning equipment includes stretch-draw mechanism: by four
Draw and be fixed on same stretch-draw backing plate 32 formation one " jack pad " combination, with thousand with jack 31
Jin top is 31 as jacking apparatus, and four jack 31 stress simultaneously are adjusted required for rope to reach stretching construction
Super large stretching force.In the middle of stretch-draw backing plate 32, a macropore is set, passes and stretch-draw in order to anchor cable, anchor head
Screwing of nut 33.Anchor head is bolted on support tube 34, and support tube 34 is internal in order to parallel
Steel strand wires pass through, and outside car has external screw thread to spin together with tensioning nut 33.Tensioning nut 33 interior
Screw thread and anchor head external thread rotary are combined the stretching force born 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 one
Tensioned anchorage system, regulates the elongation of anchor cable by the elongation and stretching force size controlling jack 31
Amount and stretching force size.
Before equipment works, tensioning nut 33 and anchor head are separate, will after anchor cable stretching single steel strand
Anchor head is fixed on beam.This is accomplished by equipment and has ability tensioning nut 33 and anchor head screwed.Therefore
Fix a gear ring 1 at tensioning nut 33 cylindrical to engage with the gear 2 being fixed on stretch-draw backing plate 32, tooth
Wheel 2 coordinates transmission tensioning nut 33 to rotate required moment of torsion with the spline 4 on bearing block 3.Exist simultaneously
Tensioning nut 33 is internal arranges a guide cylinder 5, and guide cylinder 5 overall diameter is equal with anchor head major diameter of thread,
Internal reservation can accommodate the space of steel strand wires.Guide cylinder 5 by with the holding being fixed on stretch-draw backing plate 32
Fairlead 7 on frame 6 has coordinated the guide function to tensioning nut 33.Retainer 6 is installed one
Individual ultrathin hydraulic jack 8, the piston rod of ultra-thin jack 8 acts on guide cylinder 5, by ultra-thin thousand
The back and forth movement of jin top 8 pistons provides the axial force that nut is required during screwing.
After stretch-draw terminates, the decelerator 9 being scheduled in week on stretch-draw backing plate 32 is rotated by chain-driving splined shaft,
Transfer torque to that fixed gear 12 band on splined shaft is automatically connected on work nut 13 determines ring gear against rotation,
Work nut be fixed in anchor plate 35, with reductor 9 be the second driving means by locked for work nut at anchor
On backing plate 35, the Suo Li with holding drag-line is constant.
As shown in Fig. 3, Fig. 5, under beam during stretching construction, owing to anchor cable and horizontal plane have certain
Angle 25 °～70 °, and the angle of every anchor cable differs.This is accomplished by constantly adjusting tensioning tooling
From the angle between horizontal plane to adapt to the stretching construction action of different anchor cable different angles.Therefore design by
Stretch-draw backing plate 32 one end is hingeably secured to the lower end of an articulated stand 15 by the first bearing pin 14, another
Hold and be articulated with epimere on articulated stand by swing type engineering hydraulic cylinder 16 by the second bearing pin 17, logical
Cross and control the extension elongation of oscillating motor 16 to adjust the angle between stretch-draw backing plate 32 and horizontal plane.
As shown in Figure 4, Figure 5, tensioning tooling include welding support, stretch-draw backing plate 32, tensioning nut 33,
Fairlead, guide cylinder and jack 31 weight are bigger, it is impossible to rely on manpower and common facility to be carried to
Anchor head place height also ensures that the central axis of anchor head and anchor cable coincides with the axis of tensioning nut 33.Cause
This design realizes the raising and lowering of tensioning tooling in the vertical direction with the lifting of four hydraulic jacks 18
Action.Design a lifting-up support 19 in order to fixing articulated stand 15, make articulated stand 15 at lifting-up support
19 internal dependence hydraulic cylinders 18 move up and down.
As shown in Figure 4, Figure 5, because anchor head has certain length with work nut and anchor cable self, project to
The component of a displacement is had on horizontal plane.Therefore one " gear-tooth bar " drive system of design, by gear
Rotate and control tensioning tooling motion in the horizontal direction.For one platform 20 of this bottom design in order to pacify
Dress driving rack 21 and the track 22 for the walking of lifting-up support 19 horizontal direction.By on lifting-up support 19
The travelling gear 23 installed engages transmission moment of torsion and props up to complete jacking with the tooth bar 21 being arranged on platform 20
Frame 19 and tensioning tooling, relative to platform 20 action that moves forward and backward in the horizontal direction, are arranged on jacking
6 slide blocks 24 bottom support 19 complete in horizontal direction with the track 22 being arranged on platform 20
Guide effect.
The technical scheme provided the embodiment of the present invention above is described in detail, used herein
Principle and the embodiment of the embodiment of the present invention are set forth by specific case, saying of above example
The bright principle being only applicable to help to understand the embodiment of the present invention；General technology people simultaneously for this area
Member, according to the embodiment of the present invention, all will change in detailed description of the invention and range of application,
In sum, this specification content should not be construed as limitation of the present invention.
Claims (6)
1. a suspension cable whole bundle intelligent tensioning equipment, it is characterised in that including: stretch-draw backing plate, anchor plate, jacking
Device, support tube and tensioning nut；Described jacking apparatus is connected to described stretch-draw backing plate and described anchor plate
Between, described tensioning nut is positioned at the outside of described stretch-draw backing plate, described tensioning nut and described support tube spiral shell
Stricture of vagina connects；Also include 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 driving means are in transmission connection.
2. suspension cable whole bundle intelligent tensioning equipment as claimed in claim 1, it is characterised in that: described stretch-draw backing plate
Being provided with retainer, described retainer is connected with fairlead, described fairlead and described tensioning nut external diameter
Join and be positioned on the shift motion of described tensioning nut.
3. suspension cable whole bundle intelligent tensioning equipment as claimed in claim 2, it is characterised in that: also include ultra-thin thousand
Jin top, described ultra-thin jack is connected between described tensioning nut and described retainer.
4. suspension cable whole bundle intelligent tensioning equipment as claimed in claim 1, it is characterised in that: also include hinged
Frame, described stretch-draw backing plate is hinged with described articulated stand, sets between described stretch-draw backing plate and described articulated stand
There is hydraulic cylinder.
5. suspension cable whole bundle intelligent tensioning equipment as claimed in claim 4, it is characterised in that:
Also include that lifting-up support, described lifting-up support are slidably connected with described articulated stand, described lifting-up support and institute
State and between articulated stand, be provided with hydraulic cylinder.
6. suspension cable whole bundle intelligent tensioning equipment as claimed in claim 5, it is characterised in that: also include platform,
Described platform is provided with driving rack and track, and described lifting-up support is provided with travelling gear, described travelling gear with
Described driving rack engages, and described lifting-up support is slidably connected with described platform.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104109998A CN104109998A (en) | 2014-10-22 |
| CN104109998B true CN104109998B (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105862608B (en) * | 2016-05-20 | 2017-09-19 | 东南大学 | The automation tensioning system and method for a kind of pre-stress fibre plate reinforcing slab plate |
| CN106812070B (en) * | 2017-03-22 | 2019-01-25 | 贵州大学 | A kind of arch bridge cable-hoisting construction stayed knotting method knotted rope tensioning equipment |
| CN108908693B (en) * | 2018-06-29 | 2024-03-15 | 周兆弟 | Steel bar prestress tensioning machine |
| 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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120004908A (en) * | 2010-12-13 | 2012-01-13 | 케이블텍 주식회사 | Apparatus for applying tension force to cable |
-
2013
- 2013-04-19 CN CN201310161898.6A patent/CN104109998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| Publication number | Publication date |
|---|---|
| CN104109998A (en) | 2014-10-22 |
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