A cable-stayed cable tray

Abstract

This application discloses a cable-stayed bridge cable-laying reel, relating to the technical field of cable-stayed bridge construction. It includes a base, a cable-laying reel, and a resetting component. The base has a slot; the cable-laying reel is rotatably connected to the base, and a locking block is slidably fitted on the cable-laying reel. The locking block moves towards or away from the rotation axis of the cable-laying reel, and is used to insert into the slot and abut against the inner wall of the slot, thereby locking the cable-laying reel. The cable-laying reel includes multiple vertical posts arranged around the rotation axis of the reel. The resetting component is located between the locking block and the rotation axis of the cable-laying reel, and is used to reset the locking block. This application reduces the risk of accidents caused by rapid movement of the cable-stayed bridge due to traction equipment failure, which could lead to swinging, impacts on construction equipment and personnel, and ultimately, safety accidents. This application provides an effective cable-stayed bridge cable-laying reel.

Description

Technical Field

[0001] This application relates to the technical field of cable-stayed bridge construction, and in particular to a cable-stayed bridge cable tray. Background Technology

[0002] A cable-stayed bridge consists of bridge towers, a main girder, and multiple stay cables. The main girder is fixed to the bridge towers by the stay cables, forming a multi-span elastically supported continuous beam where the stay cables replace the piers. Cable-stayed bridges have relatively low construction height, light structural weight, and low construction cost, making them widely applicable.

[0003] The stay cables in a typical large cable-stayed bridge are 100 to 200 meters long, with a single cable weighing 15 to 25 tons. Due to their large size, they cannot be wound using ordinary winches. Generally, cranes or winches mounted on the bridge towers are used to hoist the stay cable reels onto the cable spreading reel. One end of the stay cable reel is fixed to the cable spreading reel, and the other end is pulled to the bridge tower by the traction equipment, where it is then anchored to the bridge tower by the construction workers.

[0004] The cable reel consists of a base and a cable tray, which is rotatably connected to the base. The cable tray includes multiple vertically arranged poles, which are positioned around the rotation axis of the cable tray. The cable tray is fitted around the perimeter of the multiple poles, with one end fixed to a pole by tape and the other end fixed to the traction equipment. In use, the base is fixed to the bridge deck, and the movement of the stay cables drives the cable tray to rotate.

[0005] However, if the traction equipment malfunctions and rotates too fast, the cable may swing and collide with construction equipment and personnel, leading to a safety accident. Summary of the Invention

[0006] In order to reduce the risk of accidents caused by rapid movement of the stay cables due to traction equipment failure, which could lead to swinging, impact on construction equipment and personnel, this application provides a stay cable extension disc.

[0007] This application provides a cable-stayed cable extension disc, which adopts the following technical solution:

[0008] A cable-stayed bridge cable reel, comprising:

[0009] A base, wherein a slot is provided on the base;

[0010] A cable reel is rotatably connected to a base. A locking block is slidably fitted on the cable reel. The locking block moves towards or away from the rotation axis of the cable reel. The locking block is used to insert into a slot and abut against the inner wall of the slot, thereby locking the cable reel. The cable reel includes multiple uprights arranged around the rotation axis of the cable reel. The uprights are arranged in a vertical direction.

[0011] A reset component is disposed between the locking block and the rotation axis of the winding cable reel, and is used to reset the locking block.

[0012] By adopting the above technical solution, the cable-stayed cable disc is sleeved on the outside of multiple uprights, with one end fixed to the upright and the other end connected to the traction equipment. When the traction equipment moves the cable-stayed cable, the cable-stayed cable disc rotates, thereby causing the winding cable disc to rotate. At this time, the rotation speed of the winding cable disc is relatively low, and the centrifugal force on the locking block is less than the frictional force between the locking block and the winding cable disc, so the locking block is stationary relative to the winding cable disc. When the traction equipment malfunctions and causes the cable-stayed cable to move faster, the cable-stayed cable disc drives the winding cable disc to rotate faster, and the centrifugal force on the locking block increases to a level greater than the maximum static frictional force between the locking block and the winding cable disc. This causes the locking block to move away from the rotation axis of the winding cable disc and insert into the slot. The locking block and the winding cable disc are in a sliding fit, and the traction equipment is still pulling the winding cable disc at this time, resulting in a large frictional force between the locking block and the inner wall of the slot. The reset component cannot reset the locking block, thus locking the winding cable disc. The frictional force between the winding cable disc and the cable-stayed cable prevents the cable-stayed cable from moving. When the operator shuts off the traction equipment, the friction between the locking block and the slot decreases, and the reset component resets the locking block, allowing the cable reel to rotate, thereby enabling the stay cable to move.

[0013] Optionally, the card block is provided with multiple rotation axes around the cable reel, and the direction of movement is radial around the cable reel.

[0014] By adopting the above technical solution, multiple card blocks can reduce the distance between the card slot and the adjacent card blocks, thereby reducing the time required to lock the cable reel when the traction equipment fails.

[0015] Optionally, multiple slots are provided corresponding to the rotation axis of the card block surrounding the cable reel.

[0016] By adopting the above technical solution, multiple slots can further reduce the distance between the slots and adjacent blocks. When the cable disc is locked, the multiple blocks cooperate with the slots to reduce the force on each block and reduce the possibility of locking failure due to block breakage.

[0017] Optionally, the contact surfaces of the card block and the card slot are both inclined to the radial direction of the cable reel.

[0018] By adopting the above technical solution, the contact surface between the card block and the card slot is inclined to the radial direction of the cable reel, which can increase the contact area between the card block and the card slot and change the force direction of the card block and the card slot, thereby reducing the stress on the card block and thus reducing the possibility of card block breakage.

[0019] Optionally, one end of the upright is slidably connected to the locking block, and the upright and the locking block can be locked together by friction.

[0020] By adopting the above technical solution, multiple locking blocks drive multiple uprights to move simultaneously away from the axis of rotation of the cable disc, so that the uprights press against the cable, thereby increasing the friction between the uprights and the cable and reducing the possibility of the cable slipping due to insufficient friction. The sliding connection between the uprights and the locking blocks allows the locking blocks to still move away from the axis of rotation after the uprights press against the cable, so that the locking blocks can be inserted into the slots.

[0021] Optionally, the cable reel includes a mounting plate, and the mounting plate has multiple clearance holes around the rotation axis of the cable reel, with each upright being inserted into one of the clearance holes.

[0022] By adopting the above technical solution, when locking the cable disc, the upright can also share some of the force on the locking block, thereby further reducing the possibility of the locking block breaking.

[0023] Optionally, the reset component is a spring, with one end of the spring connected to the locking block and the other end connected to the cable tray near the rotation axis.

[0024] By adopting the above technical solution, when the cable tray is locked and the locking block is inserted into the slot, the spring extends and deforms. When the cable tray is unlocked, the spring returns to its original shape, allowing the locking block to reset and rotate around the cable tray.

[0025] Optionally, the cable reel includes multiple limiting rods, which are arranged around the rotation axis of the cable reel and are all located on the side of the upright away from the rotation axis of the cable reel.

[0026] By adopting the above technical solution, the cable disc is sleeved between the limiting rod and the upright. The width between the limiting rod and the upright is small, so that when the cable is misaligned, it abuts against the limiting rod, thereby reducing the possibility of cable twisting caused by cable misalignment.

[0027] Optionally, the base is provided with a plurality of support wheels around the rotation axis of the cable reel. The rotation axis of the support wheels is arranged radially around the cable reel, and all of them can abut against the cable reel.

[0028] By adopting the above technical solution, multiple support wheels support the cable reel at multiple positions, thereby improving the stability of the cable reel. Moreover, the support wheels can roll, which can improve the stability of the cable reel without affecting its rotation.

[0029] Optionally, the base has multiple rollers on its bottom wall.

[0030] By adopting the above technical solution, the roller can easily move the cable tray and adjust its position. After adjusting the position of the cable tray, the roller can be fixed by using wooden wedges to hold the caster wheel in place.

[0031] In summary, this application includes at least one of the following beneficial effects:

[0032] 1. When a traction equipment malfunction causes the stay cable to move at an increased speed, the stay cable reel drives the winding reel to rotate at an increased speed. The centrifugal force on the locking block increases to a level greater than the maximum static friction between the locking block and the winding reel, causing the locking block to move away from the rotation axis of the winding reel and insert into the slot. The locking block and the winding reel are in a sliding fit, and the traction equipment is still pulling the winding reel at this time, resulting in a large friction between the locking block and the inner wall of the slot. The reset component cannot reset the locking block, thus locking the winding reel. The friction between the winding reel and the stay cable prevents the stay cable from moving. When the operator shuts off the traction equipment, the friction between the locking block and the slot decreases, and the reset component resets the locking block, allowing the winding reel to rotate and thus enabling the stay cable to move.

[0033] 2. Multiple locking blocks can reduce the distance between the locking slot and adjacent locking blocks, thereby reducing the time required to lock the cable reel in the event of a traction equipment failure;

[0034] 3. Multiple slots can further reduce the distance between the slots and adjacent blocks. When the cable reel is locked, the multiple blocks cooperate with the slots to reduce the force on each block and reduce the possibility of locking failure due to block breakage.

[0035] 4. Multiple support wheels support the cable reel at multiple positions, thereby improving the stability of the cable reel. The support wheels can roll, which can improve the stability of the cable reel without affecting its rotation. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0037] Figure 2 This is a schematic diagram illustrating the structure of the support wheel in an embodiment of this application;

[0038] Figure 3 This is a partial structural schematic diagram of the clearance hole used in an embodiment of this application;

[0039] Figure 4 This is a cross-sectional view used to illustrate the second slide in an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Base; 11. Slot; 12. Support wheel; 13. Roller; 14. First connecting rod; 15. Bearing seat; 2. Cable winding disc; 21. Rotating shaft; 22. Upright pole; 23. Limiting rod; 24. Mounting plate; 241. Clearance hole; 25. First slide groove; 26. Second connecting rod; 3. Locking block; 4. Sliding block; 41. Second slide groove; 5. Spring; 6. Support ring. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-4This application will be described in further detail.

[0042] This application discloses a cable-stayed cable tray, referring to... Figure 1 and Figure 2 The cable-stayed cable reel includes a circular base 1. The base 1 is coaxially fixed to a bearing seat 15 via multiple first connecting rods 14. Multiple rollers 13 are arranged at the center of the bottom wall of the base 1.

[0043] The roller 13 allows the operator to move the base 1 easily. When the base 1 needs to be fixed, wooden wedges are inserted between the roller 13 and the ground to fix the roller 13.

[0044] Reference Figure 2 and Figure 3 A cable-stayed bridge cable reel includes a cable-winding reel 2, which includes a rotating shaft 21, an annular mounting plate 24, and multiple second connecting rods 26. The rotating shaft 21 is rotatably connected to a bearing seat 15 via bearings. The rotating shaft 21 is fixedly connected to the mounting plate 24 via multiple second connecting rods 26. The multiple second connecting rods 26 are equally spaced around the rotating shaft 21. The outer diameter of the mounting plate 24 is smaller than the inner diameter of the base 1, and the top surface of the mounting plate 24 abuts against the bottom surface of the second connecting rods 26. The multiple second connecting rods 26 are also fixedly connected to a support ring 6, which is annular and has an inner diameter larger than the outer diameter of the mounting ring. Multiple support wheels 12 are arranged around the rotating shaft 21 between the support ring 6 and the base 1. The support wheels 12 are rotatably connected to the base 1, and their top surfaces abut against the bottom surface of the support ring 6.

[0045] The mounting plate 24 is rotatably connected to the bearing seat 15 via the rotating shaft 21, allowing the mounting plate 24 to rotate relative to the base 1. When the mounting plate 24 rotates, it can drive multiple second connecting rods 26 to rotate simultaneously. Multiple support wheels 12 abut against the support ring 6 to support the mounting plate 24, thereby reducing the possibility of the rotating shaft 21 deforming and wearing due to the misalignment of the mounting plate 24, and thus extending the service life of the rotating shaft 21.

[0046] Reference Figure 3 and Figure 4 The inner wall of the base 1, around the rotating shaft 21, has multiple slots 11, which are serrated. The side wall of the mounting plate 24, around the rotating shaft 21, has multiple first sliding grooves 25 at equal intervals, with the length of the first sliding grooves 25 being radial to the rotating shaft 21. A slider 4 is slidably connected within the first sliding groove 25, and a spring 5 is connected between the slider 4 and the inner wall of the first sliding groove 25. Multiple locking blocks 3 are fixedly connected to the end face of the slider 4 away from the rotating shaft 21. The locking blocks 3 are serrated and can be locked into the corresponding slots 11. The contact surface between the locking blocks 3 and the slots 11 is inclined radially to the rotating shaft 21.

[0047] When an external force drives the mounting plate 24 to rotate, and the mounting plate 24 rotates at a relatively high speed, the slider 4 moves radially away from the rotating shaft 21 under the action of centrifugal force, causing the locking block 3 to insert into the locking groove 11. At the same time, the side wall of the slider 4 abuts against the inner wall of the first sliding groove 25, thereby locking the mounting plate 24. Because the contact surface between the locking block 3 and the locking groove 11 is inclined, the external force causes the tip of the locking block 3 to move towards the tip of the locking groove 11, and the friction between the contact surface between the locking block 3 and the locking groove 11 is large, making it impossible for the spring 5 to reset the slider 4. When the mounting plate 24 is not subjected to external force or the external force is reduced, the spring 5 causes the slider 4 to reset, and the locking block 3 slides out of the locking groove 11, thereby unlocking the mounting plate 24 and allowing the mounting plate 24 to rotate.

[0048] Reference Figure 1 and Figure 4 A long, narrow clearance hole 241 is provided at the contact point between the mounting plate 24 and the second connecting rod 26. The clearance hole 241 penetrates the top and bottom surfaces of the second connecting rod 26 and communicates with the first sliding groove 25. A second sliding groove 41 is provided on the top wall of the slider 4. The second sliding groove 41 is parallel to the clearance hole 241. A vertical rod 22 is slidably connected to the clearance hole 241 and the second sliding groove 41. The vertical rod 22 is vertically arranged and slides in cooperation with the second sliding groove 41. In this application, the cross-section of the second sliding groove 41 can be I-shaped or T-shaped. The end of the vertical rod 22 inserted into the second sliding groove 41 can be of the corresponding shape, thereby increasing the stability of the vertical rod 22. The second sliding groove 41 can penetrate the end of the slider 4 away from the locking block 3, thereby facilitating the insertion of the vertical rod 22 into the second sliding groove 41. Since this is a conventional design in the art, it is not shown in the accompanying drawings.

[0049] The stay cables are wound into a disc-shaped cable reel. When installing the stay cables, the traction equipment places the cable reel around the outside of multiple uprights 22, making the cable reel coaxial with the installation disc 24. The spring 5 is compressed and deformed, causing all the uprights 22 to be pressed tightly against the cable reel. Then, one end of the stay cable is glued to an upright 22 with tape, and the other end is connected to the traction equipment. The traction equipment transports the stay cable to the bridge tower and anchors it at the designated position in the construction plan. Because the uprights 22 are pressed against the stay cables, when the stay cables move, the friction causes the installation disc 24 to rotate. During rotation, the slider 4 is subjected to centrifugal force and moves away from the axis of rotation 21, further pressing the uprights 22 against the stay cables. This increases the friction between the uprights 22 and the stay cables, reduces the possibility of the stay cables sliding relative to the installation disc 24, and reduces the possibility of the stay cables twisting or tangling due to misalignment during movement.

[0050] When the traction equipment malfunctions, causing the stay cable to move at a high speed, the rotation speed of the mounting plate 24 increases, causing the slider 4 to move further away from the rotating shaft 21 until the locking block 3 inserts into the locking groove 11. At this point, the side wall of the slider 4 abuts against the inner wall of the first sliding groove 25, thereby locking the mounting plate 24. The upright 22 abuts against the inner wall of the clearance hole 241 and the second sliding groove 41, locking the upright 22. Under the action of friction between the upright 22 and the stay cable, the stay cable is locked, thereby reducing the possibility of the stay cable swinging due to high speed and colliding with surrounding buildings or construction personnel, which could lead to safety accidents. When the construction personnel stop the traction equipment, the spring 5 causes the slider 4 to return to its original position, and the upright 22 can drive the mounting plate 24 to rotate, thereby releasing the lock of the stay cable.

[0051] The upright 22 is slidably connected to the locking block 3, so that when the upright 22 is pressed against the cable and cannot move relative to the cable, the locking block 3 is not inserted into the slot 11, and the mounting plate 24 can continue to rotate. When the rotation speed of the mounting plate 24 continues to increase, it can increase the friction between the upright 22 and the cable, thereby further improving the stability between the upright 22 and the cable. The locking block 3 can continue to move away from the rotating shaft 21 until the locking block 3 is inserted into the slot 11 and the mounting plate 24 is locked.

[0052] Reference Figure 1 A limiting rod 23 is fixedly connected to the second connecting rod 26. The limiting rod 23 is located on the side of the upright 22 away from the rotating shaft 21 and is parallel to the upright 22. The interval between adjacent limiting rods 23 is the same.

[0053] The cable reel is fitted between the upright 22 and the limiting rod 23. When the cable moves due to misalignment, it comes into contact with the limiting rod 23 and cannot continue to move, thereby reducing the situation where the cable is entangled or twisted due to misalignment.

[0054] The implementation principle of the cable-stayed bridge cable reel in this embodiment is as follows: The cable reel is sleeved on the outside of the upright 22, and the upright 22 abuts against the cable reel, allowing the cable reel to rotate around the pivot 21. One end of the cable is connected to an upright 22, and the other end is connected to a traction device. The traction device pulls the cable to the tower bridge and anchors it. When the traction device malfunctions, causing the cable's moving speed to increase, the upright 22 drives the mounting plate 24 to rotate at a higher speed. Under the action of centrifugal force, the slider 4 moves away from the pivot 21, causing the locking block 3 to insert into the slot 11, locking the mounting plate 24 and the upright 22, thereby locking the cable and reducing the possibility of the cable swinging due to excessive speed, which could lead to a safety accident. When the construction personnel stop the traction device, the spring 5 causes the slider 4 to reset, and the locking block 3 exits from the slot 11, thereby releasing the locking of the mounting plate 24 and the upright 22, allowing the traction device to move the cable.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cable deck for a stay cable, characterized by: include: The base (1) has a slot (11) on it; A cable reel (2) is rotatably connected to a base (1). A locking block (3) is slidably fitted on the cable reel (2). The moving direction of the locking block (3) is closer to or further away from the rotation axis of the cable reel (2). The locking block (3) is used to insert into a slot (11) and abut against the inner wall of the slot (11) to lock the cable reel (2). The cable reel (2) includes a plurality of uprights (22) arranged around the rotation axis of the cable reel (2). The uprights (22) are arranged in a vertical direction. A reset component is disposed between the rotation axis of the locking block (3) and the winding cable disc (2) and is used to reset the locking block (3). One end of the upright (22) is slidably connected to the locking block (3), and the upright (22) and the locking block (3) can be locked by friction. The cable winding disc (2) includes a rotating shaft (21), a mounting disc (24), and multiple second connecting rods (26). A long, narrow clearance hole (241) is provided at the contact point between the mounting disc (24) and the second connecting rods (26). Multiple first sliding grooves (25) are equally spaced along the side wall of the mounting disc (24) around the rotating shaft (21). The clearance hole (241) penetrates the top and bottom surfaces of the second connecting rods (26) and communicates with the first sliding grooves (25). A slider (4) is slidably connected within the first sliding groove (25). A second sliding groove (41) is provided on the top wall of the slider (4). The second sliding groove (41) is parallel to the clearance hole (241). A vertical rod is slidably connected within the clearance hole (241) and the second sliding groove (41). The pole (22) is vertically set and slides with the second slide groove (41). The pole (22) is slidably connected with the locking block (3). When the pole (22) is pressed against the cable and cannot move relative to the cable, the locking block (3) is not inserted into the slot (11). The mounting plate (24) can continue to rotate. When the rotation speed of the mounting plate (24) continues to increase, the friction between the pole (22) and the cable can be increased, thereby further improving the stability between the pole (22) and the cable. The locking block (3) can continue to move away from the rotating shaft (21) until the locking block (3) is inserted into the slot (11) and the mounting plate (24) is locked.

2. The cable-stayed cable reel according to claim 1, characterized in that: The card block (3) is provided with multiple rotating axes around the cable disc (2), and the moving direction is radial around the cable disc (2).

3. A cable-stayed cable reel according to claim 2, characterized in that: The slot (11) has multiple openings corresponding to the card block (3) around the rotation axis of the cable disc (2).

4. A cable-stayed cable reel according to claim 3, characterized in that: The contact surfaces of the card block (3) and the card slot (11) are both inclined to the radial direction of the cable disc (2).

5. A cable-stayed cable reel according to claim 1, characterized in that: The reset component is a spring (5), one end of which is connected to the locking block (3), and the other end is connected to the cable tray near the rotation axis.

6. A cable-stayed cable reel according to claim 1, characterized in that: The cable reel (2) includes multiple limiting rods (23), which are arranged around the rotation axis of the cable reel (2) and are all located on the side of the upright (22) away from the rotation axis of the cable reel (2).

7. A cable-stayed cable reel according to claim 1, characterized in that: The base (1) is provided with a plurality of support wheels (12) around the rotation axis of the cable disc (2). The rotation axis of the support wheels (12) is arranged along the radial direction of the cable disc (2), and all of them can abut against the cable disc (2).

8. A cable-stayed cable reel according to claim 1, characterized in that: The base (1) has multiple rollers (13) on its bottom wall.

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