CN-117738472-B - Cable supplementing device, method and application for large-angle vertical rotation of long-line structure

CN117738472BCN 117738472 BCN117738472 BCN 117738472BCN-117738472-B

Abstract

The invention discloses a stay cable tension device and method for large-angle vertical rotation of a long-line structure and application thereof, and belongs to the technical field of large-angle vertical rotation installation devices of long-line structures. The cable force identification module comprises a plurality of force measurement elements, the force measurement elements are respectively arranged on each steel strand in the cable, the mechanical rotation transmission module comprises a three-stage rotary hinge shaft structure, and the three-stage rotary hinge shaft structure comprises a first rotary hinge shaft structure, a second rotary hinge shaft structure and a third rotary hinge shaft structure which are sequentially connected. The technical scheme is used for solving the problems that in the prior art, when a long-line type structure is vertically rotated at a large angle, individual steel strands in a inhaul cable are loosened, and the loosened steel strands are difficult to repair due to the limitation of the length and the installation height of an installation part.

Inventors

GAO HAO
SHI XUEPING
WANG MINGJIE
LV YIPENG
CHEN ZHAO
ZHANG JIE
HUANG JUNBIAO
WANG GUANGZHOU
LI GUODONG
HAN ZHIHUI
CHEN TUANTUAN
ZHAO RUI
TANG DONGXUE
ZHAO DONGHAI
WANG XIAOHU

Assignees

中铁十五局集团有限公司
雄安高速铁路有限公司

Dates

Publication Date: 20260505
Application Date: 20240129

Claims (5)

1. The cable supplementing and tensioning device is characterized by comprising a cable force identification module, a mechanical rotation transmission module and a tensioning module, wherein the cable force identification module is arranged at the cable anchoring end of the higher end of a vertical rotation component, the cable force identification module comprises a plurality of force measurement elements, the force measurement elements are respectively arranged on each steel strand in a cable, the mechanical rotation transmission module comprises a three-stage rotation hinge shaft structure for adjusting the space position of an end part, the three-stage rotation hinge shaft structure comprises a first rotation hinge shaft structure, a second rotation hinge shaft structure and a third rotation hinge shaft structure which are sequentially connected, the tensioning module comprises a fixed cylinder body, a working clamping piece and a telescopic cylinder body, the working clamping piece is arranged in the fixed cylinder body, the telescopic cylinder body is fixedly connected with one end of the fixed cylinder body facing the cable anchoring end, and the end part of the first rotation hinge shaft structure is fixed on the surface of the vertical rotation component; The steel strand shearing structure is sleeved on the outer side of the cable anchoring end and comprises a fixed ring, the fixed ring is fixed on the cable anchoring end, at least two lifting columns are arranged on the surface of the fixed ring, lifting plates which are in sliding connection with the fixed ring are arranged on the lifting columns, a plurality of through holes matched with steel strands in the cable are arranged on the lifting plates, reset springs are arranged on the lifting columns and are located between the fixed ring and the lifting plates, fixing seats are symmetrically arranged on the lifting plates, telescopic rods are arranged on the fixing seats, the output ends of the telescopic rods are arranged towards the middle of the lifting plates, cutters are arranged on the output ends of the telescopic rods, and in a normal state, the lifting plates are flush with the end parts of the steel strands located on the outer side of the cable anchoring end.
2. The cable tensioning device for large-angle vertical rotation of a long-line structure according to claim 1, wherein the cable anchoring end is provided with a pressing plate module, the pressing plate module comprises a fastening screw, a limiting pressing plate, an under-plate spring and an under-plate clamping piece, the limiting pressing plate is fixed on the cable anchoring end by the fastening screw, and the under-plate spring and the under-plate clamping piece are arranged between the limiting pressing plate and the cable anchoring end.
3. The stay cable tensioning device with the long-line structure and the large-angle vertical rotation as claimed in claim 1, wherein the fixed ring is further provided with a plurality of limiting columns, and the limiting columns are uniformly distributed along the circumferential direction of the limiting ring.
4. The method for supplementing the cable of the large-angle vertical rotation stay cable supplementing device with the long-line structure according to any one of claims 1 to 3, which is characterized by comprising the following steps: ① The intelligent control system determines the position where the mechanical transfer module stays last time, initializes the position and confirms the coordinate of the current position; ② Tracking the position coordinates of the steel strand with the minimum pulling force, and confirming theta, h and r between the position coordinates of the steel strand and the position coordinates of the mechanical transfer module; ③ The mechanical rotation transmission module starts a first rotation hinge shaft structure to carry out polar axis tracking to reach the accurate direction position of the theta component of the target coordinate; ④ The mechanical rotation transmission module starts a second rotation hinge shaft structure to carry out height tracking, and the second rotation hinge shaft structure reaches a direction interval delta h of a target coordinate h component and a direction interval delta r of an r component; ⑤ The mechanical transfer module starts a third rotary hinge shaft structure to track the radius and reach the accurate direction position of the r component of the target coordinate; ⑥ The mechanical transferring module transfers the tensioning module to a locking position, and the video system carries out rechecking confirmation; ⑦ After the duplicate is confirmed, the tensioning module starts to work; ⑧ Resetting the mechanical transfer module device after tensioning is completed; ⑨ Restarting the cable force identification module, monitoring the stress of each steel strand of the inhaul cable in real time, and judging whether to restart the intelligent tensioning control system program according to the difference of cable force values.
5. The use of a cable tensioning device for large angle vertical rotation of a long line structure according to any one of claims 1-3, characterized by being applied to the installation of ultra-high angle vertical rotation of ultra-high towers, ultra-high piers and arch ribs.

Description

Cable supplementing device, method and application for large-angle vertical rotation of long-line structure Technical Field The invention belongs to the technical field of large-angle vertical rotation installation devices of long-line structures, and particularly relates to a cable tensioning device, a cable tensioning method and application of large-angle vertical rotation of a long-line structure. Background With the continuous progress of computer dynamic synchronous control technology, clustered mechanical equipment has been widely applied to civil engineering construction, and swivel technology has been developed. The vertical turning process is generally carried out in a transverse splicing and vertical turning mode, the structure is spliced or prefabricated on the ground, the high-altitude work load is greatly reduced, and the construction safety risk is reduced at the same time when the precision is ensured. Vertical swivel systems typically include tie rods, struts, guys, backstads, bogies, swivel hinges, jacks/cylinders, and the like. However, as the vertical rotation angle of the tower height or arch rib increases, the cable force of the inhaul cable changes more obviously, and generally increases or decreases along with the angle. Along with the increase of the vertical rotation angle, the stress level of the inhaul cable is continuously changed, single or few steel strands are easy to be stressed relatively little or not in each inhaul cable, so that the steel strands are loosened and are easy to suspend from a saddle, and certain uncertainty is caused by whether the inhaul cable can be successfully tightened and enter the saddle groove in the follow-up swivel construction, so that potential safety hazards exist. The existing jack/oil cylinder has little function of tensioning a specific steel strand at the tensioning end, and the cable anchoring end usually stays at a high position at the moment, exceeds the working height of a general crane, has large structure elevation angle and steep gradient, and cannot be reached by personnel and appliances, so that the problem that the stress of the individual steel strand is relatively small or not can not be effectively solved. Disclosure of Invention In view of the above, the present invention is to provide a cable repairing device, method and application for large-angle vertical rotation of a long-line structure, which are used for solving the problems that in the prior art, when the long-line structure performs large-angle vertical rotation, individual steel strands in the cable are loose, and the loose steel strands are difficult to repair due to the limitations of the length and the installation height of an installation part. In order to achieve the above purpose, the present invention provides the following technical solutions: The invention relates to a cable supplementing device with a long-line structure and large-angle vertical rotation, which is arranged at the cable anchoring end of the higher end of a vertical rotation part and comprises a cable force identification module, a mechanical rotation transmission module and a tensioning module, wherein the cable force identification module comprises a plurality of force measurement elements which are respectively arranged on each steel strand in the cable, the mechanical rotation transmission module comprises a three-stage rotary hinge shaft structure for adjusting the space position of the end part, the three-stage rotary hinge shaft structure comprises a first rotary hinge shaft structure, a second rotary hinge shaft structure and a third rotary hinge shaft structure which are sequentially connected, the tensioning module comprises a fixed cylinder body, a working clamping piece and a telescopic cylinder body, the working clamping piece is arranged in the fixed cylinder body, the telescopic cylinder body is fixedly connected with one end of the fixed cylinder body, which faces to the cable anchoring end, of the fixed cylinder body, the end part of the first rotary hinge shaft structure is fixed on the surface of the vertical rotating part, and the end part of the third rotary hinge shaft structure is fixed on the fixed cylinder body. Further, the cable anchor end department is equipped with the clamp plate module, the clamp plate module includes fastening screw, spacing clamp plate, under-plate spring and under-plate clamping piece, fastening screw is fixed in on the cable anchor end with spacing clamp plate, under-plate spring and under-plate clamping piece set up between spacing clamp plate and cable anchor end. Further, steel strand wires shear structure has been cup jointed in the outside of cable anchor end, steel strand wires shear structure includes solid fixed ring, gu fixed ring is fixed in on the cable anchor end, gu fixed ring be equipped with two piece at least lifting columns on the surface, be equipped with the lifter plate rather than sliding connection on the lifting column