CN218291616U - Synchronous and symmetrical tension control system for stay cable construction - Google Patents
Synchronous and symmetrical tension control system for stay cable construction Download PDFInfo
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- CN218291616U CN218291616U CN202222401996.XU CN202222401996U CN218291616U CN 218291616 U CN218291616 U CN 218291616U CN 202222401996 U CN202222401996 U CN 202222401996U CN 218291616 U CN218291616 U CN 218291616U
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Abstract
The utility model discloses a stay cable construction synchronous and symmetrical tension control system, which is characterized in that intelligent feed-through jacks (3) are respectively arranged at the two ends of a stay cable (16) connected with a bridge floor; the intelligent straight-through jacks (3) at the two ends of the stay cable (16) are respectively driven by a numerical control hydraulic pump main station (1) and a numerical control hydraulic pump auxiliary station (2). By adopting the technical scheme, the method is suitable for the synchronous tension construction of the stay cable, the tension stress and the holding time are accurately controlled without manually operating an oil pump, the synchronous and symmetrical tension at two ends can be ensured, the numerical value of the discrete force of the whole cable is controlled, the stress control is accurate, and the construction quality is ensured; the operation method is simple and easy to implement, reduces the labor input and reduces the construction cost.
Description
Technical Field
The utility model belongs to the technical field of bridge construction process equipment, a construction technology of suspension cable bridge is related to. More specifically, the utility model relates to a synchronous and symmetry stretch-draw control system of suspension cable construction.
Background
In the prior art, the stay cable of the bridge is constructed by adopting a traditional tensioning process, a common jack is adopted, an oil pump is manually controlled to perform tensioning, the synchronous and symmetrical tensioning of two ends cannot be realized, and the integral cable force discrete value cannot be ensured; the work efficiency is low, the operation is difficult, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a synchronous and symmetry stretch-draw control system of suspension cable construction, its purpose is the synchronous symmetry stretch-draw in both ends of guaranteeing the suspension cable.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
the utility model discloses a synchronous and symmetrical tension control system for construction of stay cables, which is applied to installation and debugging in construction of stay cables; the stay cables penetrate through the cable tower in the longitudinal direction of the bridge and are symmetrically distributed by taking the cable tower as a symmetrical center; intelligent penetrating jacks are respectively arranged at the two ends of the inclined stay cable connected with the bridge floor; the intelligent penetrating jacks at the two ends of the stay cable are respectively driven by a numerical control hydraulic pump main station and a numerical control hydraulic pump auxiliary station.
The control system is provided with a host computer monitoring computer; the main station of the numerical control hydraulic pump and the auxiliary station of the numerical control hydraulic pump are in signal connection with a host monitoring computer through wireless signals respectively.
The main station of the numerical control hydraulic pump and the secondary station of the numerical control hydraulic pump are in signal connection through wireless signals.
The intelligent feed-through jack driven by the main station of the numerical control hydraulic pump is provided with an oil inlet pipe interface and an oil return pipe interface; the oil inlet pipe interface and the oil return pipe interface are respectively connected with a high-pressure oil inlet pipe and a high-pressure oil return pipe of the main station of the numerical control hydraulic pump.
And the main station of the numerical control hydraulic pump is connected with a signal wire interface on the intelligent feed-through jack through a signal wire.
The intelligent feed-through jack driven by the numerical control hydraulic pump secondary station is provided with an oil inlet pipe interface and an oil return pipe interface; the oil inlet pipe interface and the oil return pipe interface are respectively connected with a high-pressure oil inlet pipe and a high-pressure oil return pipe of the numerical control hydraulic pump secondary station.
And the auxiliary station of the numerical control hydraulic pump is connected with a signal wire interface on the intelligent feed-through jack through a signal wire.
And the intelligent straight-through jack is provided with a displacement sensor for detecting the displacement of the end part of the stay cable.
The utility model adopts the above technical scheme, be applicable to the synchronous stretch-draw construction of suspension cable, do not need the manual work to operate the oil pump and accurately control the tensioning stress, hold the time of closing, can guarantee that both ends are synchronous, symmetrical stretch-draw, control the numerical value of whole cable discrete force, stress control is accurate, guarantees construction quality; the operation method is simple and easy to implement, reduces the labor input and reduces the construction cost.
Drawings
The contents of the drawings and the reference numbers in the drawings are briefly described as follows:
fig. 1 is a schematic top view of the structure of the stay cable intelligent tensioning system of the present invention;
fig. 2 is a schematic view of the structure and installation structure of the intelligent through jack of the present invention.
Labeled in the figure as:
1. the system comprises a numerical control hydraulic pump main station, 2, a numerical control hydraulic pump secondary station, 3, an intelligent feed-through jack, 4, a high-pressure oil inlet pipe, 5, a host monitoring computer, 6, a signal wire, 7, a signal wire interface, 8, a displacement sensor, 9, a working anchor (a working clamping piece), 10, a limiting plate, 11, an oil inlet pipe interface, 12, an oil return pipe interface, 13, a high-pressure oil return pipe, 14, a wireless signal, 15, a cable tower, 16 and a stay cable.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention by those skilled in the art.
The structure of the utility model, as shown in fig. 1 and 2, is a synchronous and symmetrical tension control system for construction of stayed cables, and is applied to installation and debugging in construction of the stayed cable 16; the stay cables 16 penetrate through the cable tower 15 in the longitudinal direction of the bridge and are symmetrically distributed by taking the cable tower 15 as a symmetrical center.
In order to solve the problems existing in the prior art and overcome the defects thereof, the invention aims at ensuring the synchronous symmetrical tensioning of the two ends of the stay cable, and the utility model adopts the technical scheme that:
as shown in fig. 1 and fig. 2, the stay cable construction synchronization and symmetry tension control system of the present invention is provided with intelligent through jacks 3 at the two ends of the connection between the stay cable 16 and the bridge floor; the intelligent penetrating jacks 3 at the two ends of the stay cable 16 are respectively driven by a numerical control hydraulic pump main station 1 and a numerical control hydraulic pump auxiliary station 2.
Wherein:
the numerical control hydraulic pump host 1 is a control host of the intelligent tensioning equipment; the numerical control hydraulic pump auxiliary machine 2 is a control auxiliary machine of intelligent tensioning equipment; the intelligent feed-through jack 3 is a jack device provided with an elongation data sensor (namely a displacement sensor 8) in the tensioning process.
The control system is provided with a host computer monitoring computer 5; the main station 1 of the numerical control hydraulic pump and the secondary station 2 of the numerical control hydraulic pump are in signal connection with a host monitoring computer 5 through wireless signals 14 respectively. The host computer monitoring computer 5 is a numerical control device for collecting and monitoring the tension stress, the elongation and the holding time in the tensioning process.
The utility model inputs the tension control parameters into the host computer monitoring computer 5, and the auxiliary machine receives data instructions through the wireless communication module on the host computer; the system is provided with two sets of intelligent penetrating jacks, four jacks are directly controlled on the host to be synchronously and symmetrically tensioned, and a tensioning stress curve diagram and the elongation of each section of graded tensioning can be monitored in real time; on one hand, the control stress and the holding time of the graded tensioning are ensured, and on the other hand, the integral cable force and the discrete error of the stay cable are ensured.
Compared with the traditional tensioning process, the technical scheme has the advantages that the operation is simple, the labor input is greatly reduced, and the construction quality can be efficiently ensured; the host computer monitoring computer on the control host computer can realize synchronous and symmetrical tensioning at two ends without manually controlling the oil pump in the tensioning process of the stay cable, thereby reducing the labor intensity of operators.
The numerical control hydraulic pump main station 1 and the numerical control hydraulic pump secondary station 2 are in signal connection through wireless signals 14.
The numerical control hydraulic pump main station 1 and the numerical control hydraulic pump auxiliary station 2 are arranged on two sides of a longitudinal bridge of a cable tower 15 and are connected through wireless signals 14, and the signal synchronization range of the numerical control hydraulic pump main station 1 and the numerical control hydraulic pump auxiliary station 2 can be kept stable within five kilometers, so that the construction requirements of general large bridges are met.
The intelligent feed-through jack 3 driven by the numerical control hydraulic pump main station 1 is provided with an oil inlet pipe interface 11 and an oil return pipe interface 12; the oil inlet pipe interface 11 and the oil return pipe interface 12 are respectively connected with the high-pressure oil inlet pipe 4 and the high-pressure oil return pipe 13 of the numerical control hydraulic pump main station 1.
The main station 1 of the numerical control hydraulic pump is connected with a signal line interface 7 on the intelligent feed-through jack 3 through a signal line 6. The numerical control hydraulic pump secondary station 2 is connected with a signal line interface 7 on the intelligent feed-through jack 3 through a signal line 6.
The signal line 6 is a command transmission device for controlling the tensioning of the jack through the host computer monitoring computer 5 in the tensioning process.
The intelligent feed-through jack 3 driven by the numerical control hydraulic pump secondary station 2 is provided with an oil inlet pipe interface 11 and an oil return pipe interface 12; the oil inlet pipe interface 11 and the oil return pipe interface 12 are respectively connected with the high-pressure oil inlet pipe 4 and the high-pressure oil return pipe 13 of the numerical control hydraulic pump secondary station 2.
The high-pressure oil inlet pipe 4 is a device which can bear oil pressure, connect a pump station with the jack and supply high-pressure hydraulic oil to the intelligent feed-through jack 3 in the tensioning process; the high-pressure oil return pipe 13 can bear oil pressure in the tensioning process, connects the pump station with the jack, and returns redundant high-pressure oil in the intelligent feed-through jack 3 to the hydraulic pump.
According to the principle of 'one top is matched with one meter', an oil inlet pipe interface 11 and an oil return pipe interface 12 of a main station 1 of the numerical control hydraulic pump and an oil inlet pipe interface 11 and an oil return pipe interface 12 of an auxiliary station 2 of the numerical control hydraulic pump are respectively and tightly connected with oil inlets and oil outlets of four intelligent through jacks 3 through high-pressure oil inlet pipes 4 and high-pressure oil return pipes. The four intelligent feed-through jacks 3 are respectively connected with the numerical control hydraulic pump main station 1 and the numerical control hydraulic pump auxiliary station 2 through signal lines 6.
Relevant tensioning parameters are input into a host computer monitoring computer 5 to realize synchronous and symmetrical tensioning of the four intelligent feed-through jacks 3.
And a displacement sensor 8 for detecting the displacement of the end part of the stay cable 16 is arranged on the intelligent straight-through jack 3. The displacement sensor 8 is a data sensor that detects the displacement of the end of the stay cable 16 to determine the elongation of the stay cable 16.
The four intelligent feed-through jacks 3 are arranged at the tensioning ends of the stay cables 16, and tool anchors and tool clamping pieces 9 are arranged at the rear ends of the intelligent feed-through jacks 3. The intelligent feed-through jack 3 is provided with a working anchor 9 (namely a working clamping piece) for fixing a stay cable 16 on the intelligent feed-through jack 3.
The intelligent feed-through jack 3 is further provided with a limiting plate 10 for longitudinally fixing the intelligent feed-through jack 3.
To sum up, the utility model aims at the defects existing in the prior art, reduces the human resource consumption and the investment of construction time as much as possible, and can ensure the construction quality and the field execution; the host computer monitoring computer 5 on the control host computer can realize synchronous and symmetrical tensioning at two ends without manually controlling an oil pump in the tensioning process of the stay cable 16. The beneficial effects are as follows:
1. the intelligent tensioning equipment can efficiently, synchronously and symmetrically stretch;
2. monitoring the tension stress and the elongation in real time in the tension process, and automatically calculating the elongation data;
3. the operation is convenient, the controllability is strong, and the manual investment is reduced;
4. the stress control is accurate, and the construction quality is efficiently ensured.
The above description is for illustrative purposes only, and it is obvious that the present invention is not limited by the above embodiments, and the present invention is not limited by the above description, and the present invention is applicable to other situations without any improvement or any substantial improvement.
Claims (8)
1. A synchronous and symmetrical tension control system for construction of a stay cable is applied to installation and debugging in the construction of the stay cable (16); the stay cables (16) penetrate through the cable tower (15) in the longitudinal direction of the bridge and are symmetrically distributed by taking the cable tower (15) as a symmetrical center; the method is characterized in that: the two ends of the stay cable (16) connected with the bridge floor are respectively provided with an intelligent straight-through jack (3); the intelligent penetrating jacks (3) at the two ends of the stay cable (16) are respectively driven by a numerical control hydraulic pump main station (1) and a numerical control hydraulic pump auxiliary station (2).
2. The stay cable construction synchronization and symmetry tension control system according to claim 1, characterized in that: the control system is provided with a host monitoring computer (5); the numerical control hydraulic pump main station (1) and the numerical control hydraulic pump auxiliary station (2) are in signal connection with a host monitoring computer (5) through wireless signals (14) respectively.
3. The stay cable construction synchronous and symmetrical tension control system according to claim 2, characterized in that: the numerical control hydraulic pump main station (1) and the numerical control hydraulic pump secondary station (2) are in signal connection through wireless signals (14).
4. The stay cable construction synchronous and symmetrical tension control system according to claim 1, 2 or 3, characterized in that: the intelligent feed-through jack (3) driven by the numerical control hydraulic pump main station (1) is provided with an oil inlet pipe interface (11) and an oil return pipe interface (12); the oil inlet pipe interface (11) and the oil return pipe interface (12) are respectively connected with a high-pressure oil inlet pipe (4) and a high-pressure oil return pipe (13) of the numerical control hydraulic pump main station (1).
5. The stay cable construction synchronous and symmetrical tension control system according to claim 4, characterized in that: the numerical control hydraulic pump main station (1) is connected with a signal wire interface (7) on the intelligent feed-through jack (3) through a signal wire (6).
6. The stay cable construction synchronous and symmetrical tension control system according to claim 1, 2 or 3, characterized in that: the intelligent feed-through jack (3) driven by the numerical control hydraulic pump secondary station (2) is provided with an oil inlet pipe interface (11) and an oil return pipe interface (12); the oil inlet pipe interface (11) and the oil return pipe interface (12) are respectively connected with a high-pressure oil inlet pipe (4) and a high-pressure oil return pipe (13) of the numerical control hydraulic pump auxiliary station (2).
7. The stay cable construction synchronization and symmetry tension control system according to claim 6, characterized in that: the numerical control hydraulic pump auxiliary station (2) is connected with a signal line interface (7) on the intelligent feed-through jack (3) through a signal line (6).
8. The stay cable construction synchronization and symmetry tension control system according to claim 1, characterized in that: and a displacement sensor (8) for detecting the displacement of the end part of the stay cable (16) is arranged on the intelligent straight-through jack (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222401996.XU CN218291616U (en) | 2022-09-09 | 2022-09-09 | Synchronous and symmetrical tension control system for stay cable construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222401996.XU CN218291616U (en) | 2022-09-09 | 2022-09-09 | Synchronous and symmetrical tension control system for stay cable construction |
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| Publication Number | Publication Date |
|---|---|
| CN218291616U true CN218291616U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222401996.XU Active CN218291616U (en) | 2022-09-09 | 2022-09-09 | Synchronous and symmetrical tension control system for stay cable construction |
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| CN (1) | CN218291616U (en) |
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- 2022-09-09 CN CN202222401996.XU patent/CN218291616U/en active Active
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