Stay cable tension control device

Abstract

The utility model relates to a stay cable tension control device, and belongs to the technical field of bridge construction equipment. The control device comprises traction devices and a power device, a stay cable is arranged in each traction device in a penetrating mode, and the traction devices are connected with analog displacement sensors and used for detecting tensioning displacement of the stay cables; the power device is connected to the traction device and used for providing power for the traction device, the power device is electrically connected with a PLC, and the PLC is connected to the analog displacement sensor. Through the analog displacement sensor, the tension displacement data of the stay cable can be transmitted to the PLC, and the PLC controls the power device, so that the traction device is controlled to tension the stay cable, and errors are prevented from being generated in the tension process.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction equipment, and in particular to a stay cable tensioning control device. Background Art

[0002] A cable-stayed bridge, also known as a cable-stayed bridge, is a type of bridge in which the main beam is directly pulled on the bridge tower by many cables. It is a structural system composed of a pressure-bearing tower, a tensioned cable, and a bending beam. It can be regarded as a multi-span elastically supported continuous beam with cables replacing piers. It can reduce the bending moment in the beam body, lower the building height, reduce the structural weight, and save materials. A cable-stayed bridge is mainly composed of a cable tower, a main beam, and a cable-stayed cable.

[0003] Nowadays, there are few control devices for detecting the tensioning of the inclined cable, and it is impossible to detect the displacement of the tensioning, so it is impossible to know the tensioning distance, which is easy to cause tensioning errors. Therefore, it is necessary to design a tensioning control device to detect the displacement of the tensioning and avoid tensioning errors. Summary of the invention

[0004] The embodiment of the present application provides a stay cable tensioning control device to solve the problem in the related art that it is difficult to detect the tensioning displacement of the stay cable and tensioning errors are easily generated.

[0005] The embodiment of the present application provides a stay cable tensioning control device, comprising:

[0006] A pulling device, each of which is provided with a stay cable, and the pulling device is connected with an analog displacement sensor for detecting the tensioning displacement of the stay cable;

[0007] A power device is connected to the pulling device and is used to provide power for the pulling device. The power device is electrically connected to a PLC controller, and the PLC controller is connected to the analog displacement sensor.

[0008] In some embodiments, the analog displacement sensor is connected to the PLC controller via a processor.

[0009] In some embodiments, an analog-to-digital conversion module is provided between the analog displacement sensor and the processor, and the processor is communicatively connected with the analog-to-digital conversion module.

[0010] In some embodiments, the analog displacement sensor is provided with a wireless data sending module, the analog-to-digital conversion module is provided with a wireless data receiving module, and the wireless data sending module is connected to the wireless data receiving module.

[0011] In some embodiments, the pulling device is a through-hole jack.

[0012] In some embodiments, the power plant is a pump station.

[0013] In some embodiments, one end of the stay cable is located on a fixed frame provided on the bridge body, and the other end is located on a main support frame provided at a middle position of the bridge body;

[0014] There are multiple fixing frames, an anchor beam is arranged between two adjacent fixing frames, the pump station is installed on the anchor beam, and the through-hole jack is installed on the fixing frame.

[0015] In some embodiments, the through-core jack includes a tensioning cylinder, the analog displacement sensor is disposed at a traction end inside the through-core jack, and the inclined cable is disposed at a traction end inside the through-core jack.

[0016] In some embodiments, a connecting piece is fixedly connected to one side of the through-hole jack, and the connecting piece is fixedly installed on the fixing frame by bolts, and the connecting piece is in an L-shaped structure;

[0017] A connecting plate is fixedly installed on one side of the inclined cable, and the connecting plate is fixedly installed on the fixing frame by bolts.

[0018] In some embodiments, a cable force sensor and a stress sensor are provided on the stay cable, and both the cable force sensor and the stress sensor are electrically connected to the processor.

[0019] The beneficial effects of the technical solution provided by this application include:

[0020] An embodiment of the present application provides a cable-tensioning control device, and the control device of the present application includes a pulling device and a power device. A cable is penetrated through each of the pulling devices, and the pulling devices are connected to an analog displacement sensor for detecting the tensioning displacement of the cable; the power device is connected to the pulling device for providing power to the pulling device, and the power device is electrically connected to a PLC controller, and the PLC controller is connected to the analog displacement sensor.

[0021] In actual use, the power device can provide power for the pulling device, so that the pulling device tensions the inclined cable. The pulling device is connected with an analog displacement sensor. Through the analog displacement sensor, the change of the tensioning displacement of the inclined cable by the pulling device can be detected. The PLC controller is connected to the analog displacement sensor, and the power device is electrically connected to the PLC controller. Therefore, through the analog displacement sensor, the tensioning displacement data of the inclined cable can be transmitted to the PLC controller. The PLC controller controls the power device, thereby controlling the tensioning of the inclined cable by the pulling device to avoid errors during the tensioning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a pulling device and a power device provided in an embodiment of the present application;

[0025] Figure 3 It is a schematic diagram of the connection between the pulling device and the inclined cable;

[0026] Figure 4 This is the connection diagram of the PLC controller.

[0027] Reference numerals:

[0028] 1. Bridge body; 2. Fixed frame; 3. Anchor beam; 4. Power device; 5. Pulling device; 6. Cable-stayed cable; 7. Analog displacement sensor; 9. PLC controller; 10. Connector; 11. Connecting plate; 12. Analog-to-digital conversion module; 13. Processor; 14. Main support frame; 15. Cable force sensor; 16. Stress sensor; 71. Wireless data sending module; 72. Wireless data receiving module. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] The embodiment of the present application provides a stay cable tensioning control device, which can solve the problem in the related art that it is difficult to detect the tensioning displacement of the stay cable and tensioning errors are easily generated.

[0031] See also Figures 1 to 4As shown, an embodiment of the present application provides a cable-tensioning control device, including a pulling device 5 and a power device 4. A cable-stayed cable 6 is provided through each pulling device 5. The pulling device 5 is connected to an analog displacement sensor 7 for detecting the tensioning displacement of the cable-stayed cable 6. The power device 4 is connected to the pulling device 5 for providing power to the pulling device 5. The power device 4 is electrically connected to a PLC controller 9, and the PLC controller 9 is connected to the analog displacement sensor 7.

[0032] In actual use, the power device 4 can provide power for the pulling device 5, so that the pulling device 5 tensions the inclined cable 6. The pulling device 5 is connected with an analog displacement sensor 7. Through the analog displacement sensor 7, the change of the tensioning displacement of the inclined cable 6 by the pulling device 5 can be detected, and the PLC controller 9 is connected to the analog displacement sensor 7. The power device 4 is electrically connected to the PLC controller 9. Therefore, through the analog displacement sensor 7, the tensioning displacement data of the inclined cable 6 can be transmitted to the PLC controller 9. The PLC controller 9 controls the power device 4, thereby controlling the tensioning of the inclined cable 6 by the pulling device 5 to avoid errors in the tensioning process.

[0033] In some alternative embodiments, see Figure 1 and Figure 4 As shown, the embodiment of the present application provides a stay cable tensioning control device, and the analog displacement sensor 7 is connected to the PLC controller 9 through the processor 13. An analog-to-digital conversion module 12 is provided between the analog displacement sensor 7 and the processor 13, and the processor 13 and the analog-to-digital conversion module 12 are communicatively connected.

[0034] The analog displacement sensor 7 is provided with a wireless data transmission module 71 , the analog-to-digital conversion module 12 is provided with a wireless data reception module 72 , and the wireless data transmission module 71 is connected to the wireless data reception module 72 .

[0035] Specifically, the analog displacement sensor 7 can detect the displacement change generated during the tensioning process of the inclined cable 6 in real time, and a wireless data transmission module 71 is provided on the analog displacement sensor 7, and a wireless data receiving module 72 is provided on the analog-to-digital conversion module 12. The wireless data transmission module 71 is connected to the wireless data receiving module 72, so that the analog displacement sensor 7 can transmit the detected tensioning displacement data of the inclined cable 6 to the analog-to-digital conversion module 12 through the wireless network. In addition, the processor 13 is connected to the analog-to-digital conversion module 12 in communication, and the PLC controller 9 is connected to the processor 13. Therefore, the analog displacement sensor 7 can transmit the detected displacement change data generated during the tensioning process of the inclined cable 6 to the PLC controller 9.

[0036] In some optional embodiments, such as Figures 1 to 3As shown, the pulling device 5 is a through-hole jack. The power device 4 is a pump station. One end of the inclined cable 6 is located on the fixed frame 2 set on the bridge body 1, and the other end is located on the main support frame 14 set at the middle position of the bridge body 1; there are multiple fixed frames 2, and an anchor beam 3 is set between two adjacent fixed frames 2. The pump station is installed on the anchor beam 3, and the through-hole jack is installed on the fixed frame 2.

[0037] The pump station of the power device 4 can provide power for the through-hole jack of the pulling device 5, so that the through-hole jack tensions the inclined cable 6. The through-hole jack is connected with an analog displacement sensor 7. Through the analog displacement sensor 7, the change of the tensioning displacement of the inclined cable 6 by the through-hole jack can be detected, and the PLC controller 9 is connected to the analog displacement sensor 7. The pump station is electrically connected to the PLC controller 9. Therefore, through the analog displacement sensor 7, the tensioning displacement data of the inclined cable 6 can be transmitted to the PLC controller 9. The PLC controller 9 controls the pump station, thereby controlling the tensioning of the inclined cable 6 by the through-hole jack to avoid errors in the tensioning process.

[0038] In actual use, the through-core jack includes a tensioning cylinder, the analog displacement sensor 7 is arranged at the traction end inside the through-core jack, and the inclined cable 6 is arranged at the traction end inside the through-core jack.

[0039] The through-hole jacks and pump stations correspond one to one. The PLC controller 9 controls the pump station so that the pump station provides power for the through-hole jacks to achieve the tensioning of the inclined cables 6. The analog displacement sensor 7 can transmit the displacement change data generated during the tensioning process of the inclined cables 6 to the PLC controller 9, which helps to avoid tensioning errors and improve the accuracy of tensioning.

[0040] In some optional embodiments, such as Figure 2 and Figure 3 As shown, a connecting piece 10 is fixedly connected to one side of the through-hole jack, and the connecting piece 10 is fixedly installed on the fixing frame 2 by bolts, and the connecting piece 10 is an L-shaped structure; a connecting plate 11 is fixedly installed on one side of the inclined cable 6, and the connecting plate 11 is fixedly installed on the fixing frame 2 by bolts. That is, the through-hole jack is fixed to the fixing frame 2 by the L-shaped connecting piece 10, and the inclined cable 6 is fixed to the fixing frame 2 by the connecting plate 11.

[0041] In some optional embodiments, a cable force sensor 15 and a stress sensor 16 are provided on the inclined cable 6, and both the cable force sensor 15 and the stress sensor 16 are electrically connected to the processor 13. In use, the cable force sensor 15 can detect the cable force change generated by the inclined cable 6, and the stress sensor 16 can detect the stress change generated by the inclined cable 6, so that the actual situation of the tensioning work can be judged by analyzing the stress and cable force data during tensioning, and unfavorable situations can be avoided.

[0042] In summary, the power device 4 pump station can provide power for the through-hole jack of the pulling device 5, so that the through-hole jack tensions the inclined cable 6. The through-hole jack is connected with an analog displacement sensor 7, and the through-hole jack can detect the change of the tension displacement of the inclined cable 6 by the through-hole jack through the analog displacement sensor 7. The analog displacement sensor 7 is provided with a wireless data transmission module 71, and the analog-to-digital conversion module 12 is provided with a wireless data receiving module 72. The wireless data transmission module 71 is connected to the wireless data receiving module 72, so that the analog displacement sensor 7 can transmit the tension displacement data of the detected inclined cable 6 to the analog-to-digital conversion module 12 through the wireless network. In addition, the processor 13 is connected to the analog-to-digital conversion module 12 in communication, and the PLC controller 9 is connected to the processor 13.

[0043] Therefore, the analog displacement sensor 7 can transmit the displacement change data detected during the tensioning process of the inclined cable 6 to the PLC controller 9. The pump station is electrically connected to the PLC controller 9, so the tensioning displacement data of the inclined cable 6 is transmitted to the PLC controller 9 through the analog displacement sensor 7, and the PLC controller 9 controls the pump station, thereby controlling the tensioning of the inclined cable 6 by the through-hole jack, avoiding errors during the tensioning process and ensuring the tensioning accuracy. A cable force sensor 15 and a stress sensor 16 are provided on the inclined cable 6, and the cable force sensor 15 and the stress sensor 16 are both electrically connected to the processor 13. In use, the cable force change generated by the inclined cable 6 can be detected by the cable force sensor 15, and the stress change generated by the inclined cable 6 can be detected by the stress sensor 16, so that the actual situation of the tensioning work can be judged by analyzing the stress and cable force data during tensioning, and unfavorable situations can be avoided.

[0044] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0045] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0046] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A stay cable tensioning control device, characterized in that: include: A pulling device (5), each of the pulling devices (5) having a stay cable (6) extending therethrough, and the pulling device (5) being connected to an analog displacement sensor (7) for detecting the tensioning displacement of the stay cable (6); A power device (4), the power device (4) is connected to the pulling device (5) and is used to provide power for the pulling device (5), the power device (4) is electrically connected to a PLC controller (9), and the PLC controller (9) is connected to the analog displacement sensor (7).

2. A stay cable tensioning control device according to claim 1, characterized in that: The analog displacement sensor (7) is connected to the PLC controller (9) via a processor (13).

3. A stay cable tensioning control device according to claim 2, characterized in that: An analog-to-digital conversion module (12) is provided between the analog displacement sensor (7) and the processor (13), and the processor (13) and the analog-to-digital conversion module (12) are communicatively connected.

4. A stay cable tensioning control device as claimed in claim 3, characterized in that: The analog displacement sensor (7) is provided with a wireless data transmission module (71), the analog-to-digital conversion module (12) is provided with a wireless data reception module (72), and the wireless data transmission module (71) is connected to the wireless data reception module (72).

5. A stay cable tensioning control device according to claim 1, characterized in that: The pulling device (5) is a through-hole jack.

6. A stay cable tensioning control device according to claim 5, characterized in that: The power device (4) is a pump station.

7. A stay cable tensioning control device according to claim 6, characterized in that: One end of the inclined cable (6) is located on a fixed frame (2) provided on the bridge body (1), and the other end is located on a main support frame (14) provided at a middle position of the bridge body (1); A plurality of the fixing frames (2) are provided, an anchor beam (3) is provided between two adjacent fixing frames (2), the pump station is installed on the anchor beam (3), and the through-hole jack is installed on the fixing frame (2).

8. A stay cable tensioning control device according to claim 7, characterized in that: The through-hole jack comprises a tensioning cylinder, the analog displacement sensor (7) is arranged at the traction end inside the through-hole jack, and the inclined cable (6) is arranged at the traction end inside the through-hole jack.

9. A stay cable tensioning control device according to claim 8, characterized in that: A connecting piece (10) is fixedly connected to one side of the through-hole jack, and the connecting piece (10) is fixedly mounted on the fixing frame (2) by means of bolts, and the connecting piece (10) is in an L-shaped structure; A connecting plate (11) is fixedly mounted on one side of the inclined cable (6), and the connecting plate (11) is fixedly mounted on the fixing frame (2) by means of bolts.

10. A stay cable tensioning control device according to claim 4, characterized in that: The stay cable (6) is provided with a cable force sensor (15) and a stress sensor (16), and the cable force sensor (15) and the stress sensor (16) are both electrically connected to the processor (13).

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