Precision cable force conversion control equipment for bridge cable replacement

Abstract

This utility model discloses a precise cable force conversion and control device for replacing bridge suspension cables, relating to the field of bridge suspension cable technology. It includes a tensioning jack mounted on a wall, a temporary suspension cable, and an anchor plate. The anchor plate is fixedly fitted onto the lower end of the temporary suspension cable and is fixedly connected to the bridge beam. The tensioning jack is fixedly fitted onto the upper end of the temporary suspension cable, and an installation plate is fixedly mounted on the top of the tensioning jack. An adjustment mechanism for adjusting the tensioning angle of the tensioning jack is provided between the installation plate and the wall. A cable force sensor is installed on the outer wall of the temporary suspension cable, and the cable force sensor works in conjunction with the tensioning jack control. This utility model can connect the temporary suspension cable to the wall and the main beam, convert the cable force of the old suspension cable, and simultaneously control the cable force of the temporary suspension cable to ensure stable tension on the bridge.

Description

Technical Field

[0001] This utility model relates to the field of bridge cable technology, specifically to a cable force precision conversion and control device for bridge cable replacement. Background Technology

[0002] Bridge suspenders bear the weight of the bridge itself, vehicle loads, and environmental loads over long periods. Due to repeated stress, fatigue cracks develop in the suspenders, and their strength gradually decreases. To ensure the continued stable use of the bridge, damaged suspenders need to be replaced. Currently, the replacement process for bridge suspenders requires the use of temporary suspenders to transfer the cable force and ensure the stable installation of the new suspenders. However, traditional conversion control equipment requires a lot of equipment to set up the temporary suspenders, reducing the ease of installation and causing the temporary suspenders to fail to transfer the cable force of the old suspenders in a timely manner, thus reducing the installation efficiency of the new suspenders. Utility Model Content

[0003] In view of the problems existing in the current bridge cable replacement precise cable force conversion control equipment, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide a precise cable force conversion control device for bridge cable replacement, which solves the problem that existing bridge internal old cables cannot be quickly converted during replacement.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bridge cable replacement cable force precision conversion control device includes a tensioning jack, a temporary cable, and an anchor plate mounted on a wall. The anchor plate is fixedly sleeved on the lower end of the temporary cable and fixedly connected to the bridge beam. The tensioning jack is fixedly sleeved on the upper end of the temporary cable. An installation plate is fixedly mounted on the top of the tensioning jack. An adjustment mechanism for adjusting the tensioning angle of the tensioning jack is provided between the installation plate and the installation wall.

[0007] The outer wall of the temporary sling is equipped with a cable force sensor, which works in conjunction with the tensioning jack control.

[0008] Preferably, the adjusting mechanism includes a sliding sleeve, a fixed plate is rotatably provided at the lower end of the mounting plate, a sliding hole is provided inside the fixed plate, the sliding sleeve is slidably inserted into the sliding hole, a sleeve is fixedly provided at the lower end of the sliding sleeve, an adjusting screw is threaded through the interior of the mounting plate, one end of the adjusting screw is rotatably disposed in the sleeve, and a rotating block is fixedly provided at the other end of the adjusting screw.

[0009] Preferably, the sliding sleeve is U-shaped.

[0010] Preferably, a strap is fixedly provided on one side of the outer wall of the cable force sensor, and a fixing ring is fixedly provided on the other side of the outer wall of the cable force sensor. The end of the strap passes through the fixing ring and is threaded with a locking bolt. The strap has multiple spaced threaded holes that cooperate with the locking bolts.

[0011] Furthermore, a positioning plate is fixedly provided on the top of the fixing plate, and a positioning bolt is threaded through the internal thread of the positioning plate.

[0012] Preferably, the fixing plate and the mounting plate are connected by a pivot pin.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model, through the provision of tension jacks, temporary slings, anchor plates, and cable force sensors, can connect temporary slings to the wall and main beam, convert the cable force of the old slings, and simultaneously control the cable force of the temporary slings to ensure stable tension on the bridge.

[0015] 2. This utility model, through the provided tensioning jack, temporary sling, mounting plate and adjustment mechanism, can ensure that the tensioning jack is on the same horizontal line as the tensioning angle of the temporary sling, thus ensuring stable tensioning control of the temporary sling by the tensioning jack. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A;

[0019] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of part B.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Tensioning jack; 2. Temporary sling; 3. Anchor plate; 4. Mounting plate; 5. Cable force sensor; 6. Sliding sleeve; 7. Fixing plate; 8. Sliding hole; 9. Sleeve; 10. Adjusting screw; 11. Rotating block; 12. Strapping; 13. Fixing ring; 14. Locking bolt; 15. Threaded hole; 16. Positioning plate; 17. Positioning bolt. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a precise cable force conversion control device for bridge cable replacement.

[0024] This utility model provides, for example Figure 1-3 The bridge cable replacement cable force precision conversion control device shown includes a tension jack 1, a temporary cable 2, and an anchor plate 3 mounted on the wall. The anchor plate 3 is fixedly sleeved on the lower end of the temporary cable 2 and fixedly connected to the bridge beam. The tension jack 1 is fixedly sleeved on the upper end of the temporary cable 2. The outer wall of the temporary cable 2 is equipped with a cable force sensor 5, which works in conjunction with the tension jack 1. The top of the tension jack 1 is fixedly equipped with an installation plate 4, and an adjustment mechanism for adjusting the tension angle of the tension jack 1 is provided between the installation plate 4 and the installation wall.

[0025] The adjustment mechanism includes a sliding sleeve 6, which is U-shaped. A fixed plate 7 is rotatably mounted on the lower end of the mounting plate 4. The fixed plate 7 and the mounting plate 4 are rotatably engaged by a pin. A sliding hole 8 is provided inside the fixed plate 7. The sliding sleeve 6 slides through the sliding hole 8. A sleeve 9 is fixedly mounted on the lower end of the sliding sleeve 6. An adjusting screw 10 is threaded through the inside of the mounting plate 4. One end of the adjusting screw 10 is rotatably mounted inside the sleeve 9. A rotating block 11 is fixedly mounted on the other end of the adjusting screw 10. A positioning plate 16 is fixedly mounted on the top of the fixed plate 7. A positioning bolt 17 is threaded through the inside of the positioning plate 16.

[0026] In order to achieve stable cooperation between the cable force sensor 5 and the temporary sling 2 for precise detection and control of the cable force, such as... Figure 1 and Figure 3 As shown, a strap 12 is fixedly provided on one side of the outer wall of the cable force sensor 5, and a fixing ring 13 is fixedly provided on the other side of the outer wall of the cable force sensor 5. The end of the strap 12 passes through the fixing ring 13 and is threaded with a locking bolt 14. The strap 12 has multiple spaced threaded holes 15 that cooperate with the locking bolt 14.

[0027] Working principle: Before replacing the old sling, the anchor plate 3 is fixedly sleeved on the lower end of the temporary sling 2 and connected to the bridge beam to form the lower anchor point. The tension jack 1 is sleeved on the upper end of the temporary sling 2, and its top mounting plate 4 is connected to the wall through the adjustment mechanism.

[0028] In the adjustment mechanism, rotating the rotating block 11 causes the adjusting screw 10 to rotate, pushing the sleeve 9 and the U-shaped sliding sleeve 6 to slide in the sliding hole 8 of the fixed plate 7, causing the fixed plate 7 to rotate around the shaft pin to adjust the angle of the tension jack 1, so that the axis of the temporary sling 2 is parallel to the axis of the old sling or reaches the design angle, and then the positioning bolt 17 is used to lock it on the wall through the positioning plate 16.

[0029] Meanwhile, the cable force sensor 5 on the outer wall of the temporary sling 2 is fixed by the strap 12, the fixing ring 13 and the locking bolt 14. It monitors the cable force in real time and transmits it to the control system. After comparing it with the preset value, it instructs the tensioning jack 1 to load or unload in stages, so as to realize the precise transfer of the cable force of the old sling to the new sling through the temporary sling 2. During the process, the cable force sensor 5 dynamically feeds back data to ensure that the cable force deviation is controlled within a safe range. After the new sling is installed, the cable force of the temporary sling 2 is gradually released to complete the replacement.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable force accurate conversion control device for bridge sling replacement, comprising a tensioning jack (1) arranged on a wall surface, a temporary sling (2) and an anchor plate (3), characterized in that, The anchor plate (3) is fixedly sleeved on the lower end of the temporary sling (2) and fixedly connected to the bridge beam. The tension jack (1) is fixedly sleeved on the upper end of the temporary sling (2). The top of the tension jack (1) is fixedly provided with an installation plate (4). An adjustment mechanism for adjusting the tension angle of the tension jack (1) is provided between the installation plate (4) and the installation wall. The outer wall of the temporary sling (2) is provided with a cable force sensor (5), which is controlled and coordinated with the tension jack (1).

2. The cable force precise conversion control device for bridge sling replacement according to claim 1, characterized by, The adjustment mechanism includes a sliding sleeve (6), a fixed plate (7) is rotatably provided at the lower end of the mounting plate (4), a sliding hole (8) is provided inside the fixed plate (7), the sliding sleeve (6) slides through the sliding hole (8), a sleeve (9) is fixedly provided at the lower end of the sliding sleeve (6), an adjusting screw (10) is threaded through the interior of the mounting plate (4), one end of the adjusting screw (10) is rotatably provided inside the sleeve (9), and a rotating block (11) is fixedly provided at the other end of the adjusting screw (10).

3. The cable force precise conversion control device for bridge sling replacement according to claim 2, characterized by, The sliding sleeve (6) is U-shaped.

4. The cable force precise conversion control device for bridge sling replacement according to claim 1, characterized by, A strap (12) is fixedly provided on one side of the outer wall of the cable force sensor (5), and a fixing ring (13) is fixedly provided on the other side of the outer wall of the cable force sensor (5). The end of the strap (12) passes through the fixing ring (13) and is threaded with a locking bolt (14). The strap (12) has multiple spaced threaded holes (15) that cooperate with the locking bolt (14).

5. The cable force precise conversion control device for bridge sling replacement according to claim 2, characterized by, A positioning plate (16) is fixedly provided on the top of the fixing plate (7), and a positioning bolt (17) is threaded through the internal thread of the positioning plate (16).

6. The cable force precise conversion control device for bridge sling replacement according to claim 2, characterized by, The fixing plate (7) and the mounting plate (4) are connected by a pivot pin.

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