Replaceable and anti-abrasion suspension bridge sling connecting piece device

Abstract

The utility model discloses a replaceable and anti-abrasion suspension cable connecting piece device of a suspension bridge. The replaceable and anti-abrasion suspension cable connecting piece device comprises a fork-shaped lug plate, a box girder lug plate, an anti-abrasion gasket and an anti-deflection assembly. The box girder lug plate is forked in the fork-shaped lug plate above the box girder lug plate and is connected with the fork-shaped lug plate through a pin shaft; the anti-abrasion gaskets are located between the inner walls of the fork-shaped lug plates and the side walls of the box girder lug plates. The anti-deflection assembly is installed at the upper end of the box girder lug plate and abuts against the position between the inner walls of the two sides of the fork-shaped lug plate, the direction of torsional force applied to the fork-shaped lug plate by the anti-deflection assembly is opposite to the deflection direction of the fork-shaped lug plate in the initial state relative to the box girder lug plate so that deflection abrasion of the fork-shaped lug plate can be reduced, and a torque sensor is arranged in the anti-deflection assembly and can monitor the torsional force. Deflection and abrasion of the fork-shaped lug plate can be reduced, so that damage to the sling connecting piece is reduced, the service life of the sling connecting piece is prolonged, and great engineering value is achieved for improving the reliability of a bridge structure.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering technology and relates to a replaceable and wear-resistant suspension bridge cable connector device, which is suitable for solving the wear problem of the fork-shaped lugs of the cable connector during operation. Background Technology

[0002] Modern suspension bridges are high-tech engineering projects that reflect a country's comprehensive strength in design technology, testing methods, engineering experience, and industrial processing capabilities. China accounts for more than half of the world's existing and under-construction suspension bridges or cable-stayed-suspension bridges with the longest spans.

[0003] The cable connector is a crucial component connecting the suspension cables and the stiffening girder. Its safety and reliability are paramount to the operation of the bridge; failure of the connector threatens the safety of the entire bridge. However, its construction and stress distribution are relatively complex. Due to transportation and other reasons, a twist angle of 2° to 4° is set during the manufacturing of suspension bridge cables, resulting in a helical shape after twisting. This causes unwinding after the cable connector is installed, leading to an angle between the cable lugs and the stiffening girder lugs. This results in close contact between the two lugs and a normal pressure between them. During operation, the relative rotation between the two lugs due to vehicle and wind loads causes wear on both the cable lugs and the stiffening girder lugs, ultimately damaging the cable connector and reducing its service life. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a replaceable and wear-resistant suspension bridge cable connector device. Through optimized design of the cable connector, wear between the lugs is avoided during bridge operation. This solution's cable connector wear-resistant device can reduce the deflection wear of the fork-shaped lugs, thereby reducing damage to the cable connector, increasing the service life of the components, and has significant engineering value for extending the service life of cable connectors and improving the reliability of bridge structures.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A replaceable, wear-resistant suspension bridge cable connector device includes a forked lug plate, a box girder lug plate, wear-resistant pads, and an anti-deflection component. The box girder lug plate is forked inside the forked lug plate above it and the two are connected by a pin. The wear-resistant pad is located between the inner wall of the forked lug plate and the side wall of the box girder lug plate. The anti-deflection component is installed at the upper end of the box girder lug plate and abuts against the inner walls of both sides of the forked lug plate. The direction of the torsional force applied to the forked lug plate by the anti-deflection component is opposite to the direction of the initial deflection of the forked lug plate relative to the box girder lug plate to reduce the deflection wear of the forked lug plate.

[0007] This utility model also includes the following technical features:

[0008] Specifically, the wear-resistant pad includes a steel plate coated with polytetrafluoroethylene, a rubber plate, and a steel plate that are glued together in sequence; the steel plate coated with polytetrafluoroethylene is in contact with the side wall of the box girder ear plate, and multiple bolt mounting seats are vertically fixed to the side edge of the steel plate, and the wear-resistant pad is fixed to the fork-shaped ear plate by bolts passing through the bolt mounting seats.

[0009] Specifically, the anti-deflection assembly includes an n-shaped mounting base, a torsion spring plate, a torsion spring, and a torque sensor;

[0010] The n-shaped mounting base is anchored to the upper end of the box girder ear plate. The torsion spring and torque sensor are located in the central circular groove on the upper surface of the n-shaped mounting base. The torsion springs in the middle of the torsion spring plate are connected so that the two ends of the torsion spring plate can be pre-applied with pre-torque to counteract the deflection of the fork-shaped ear plate. The torque sensor can monitor the torque of the torsion spring plate in real time.

[0011] Specifically, the anti-deflection assembly also includes a screw support, a screw, a nut, and a booster;

[0012] The screw support is fixed on the upper surface of the n-shaped mounting base and located on both sides of the torsion spring plate. The two screw supports are respectively connected to the screws. The two screws are respectively provided with nuts and pushers. The two pushers can move on the screws with the nuts and can apply deflection force to the torsion spring plate on both sides of the torsion spring plate.

[0013] Specifically, the direction of the deflection force applied by the booster to the torsion spring plate is the same as the direction of the deflection force applied by the torsion spring to the torsion spring plate, and both are opposite to the initial deflection direction of the fork-shaped lug plate.

[0014] Specifically, the box girder ear plate is equipped with a spherical bearing in the hole for mounting the pin; the fork-shaped ear plate with anti-wear pad is connected to the box girder ear plate with spherical bearing by a pin.

[0015] Compared with the prior art, this utility model has the following technical effects:

[0016] 1. This utility model provides a combined block between the box girder ear plate and the connecting ear plate. The presence of the polytetrafluoroethylene layer can prevent wear on the ear plate, and the presence of the rubber layer can also buffer the normal force of wear, thereby further reducing wear.

[0017] 2. This utility model sets up an anti-deflection wear device between the box girder ear plate and the connecting ear plate. The rotating torsion spring and the rotating plate exert force on it, which can give the upper ear plate a force in the opposite direction of deflection, thereby reducing the deflection of the upper ear plate. At the same time, the device is also equipped with a torque sensor to monitor the torque change in real time. The booster device distributed on the opposite side can slide stably on the screw. By rotating the bolt, the booster device can be moved inward, thereby giving the torsion spring and rotating plate a secondary thrust, which reduces the deflection of the upper ear plate.

[0018] 3. Taking into account the mechanism of un-twist, this utility model adopts half of the appearance of the ear plate of the sling connector in terms of appearance design, which saves materials.

[0019] 4. This utility model is a replaceable device. Considering that the box girder ear plate is a permanent device and the sling connector is a replaceable device, this device is fixedly installed on the sling connector by bolts, thus avoiding drilling holes in the box girder ear plate for installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly of the fork-shaped lugs and the box girder lugs.

[0021] Figure 2 This is a schematic diagram of the wear-resistant gasket of this utility model installed between the two ear plates.

[0022] Figure 3 This is a schematic diagram of the anti-wear gasket structure of this utility model.

[0023] Figure 4 This is a schematic diagram of the anti-deflection component of this utility model located on the two ear plates.

[0024] Figure 5 This is a schematic diagram of the anti-deflection component structure of this utility model.

[0025] Figure 6 This is a schematic diagram of the anti-deflection component of this utility model.

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Fork-shaped ear plate, 2. Box girder ear plate, 3. Spherical bearing, 4. Pin, 5. Baffle, 6. Anti-wear shim, 7. Anti-deflection assembly, 8. Torsion spring rotating plate, 9. Torsion spring, 10. Screw support, 11. Screw, 12. Nut, 13. Boosting component, 14. Torque sensor. Detailed Implementation

[0028] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0029] Example:

[0030] like Figures 1 to 6 As shown, this embodiment provides a replaceable, wear-resistant suspension bridge cable connector device, including a fork-shaped ear plate 1, a box girder ear plate 2, a wear-resistant pad 6, and an anti-deflection component 7; the box girder ear plate 2 is forked inside the fork-shaped ear plate 1 above it and the two are connected by a pin 4; the wear-resistant pad 6 is located between the inner wall of the fork-shaped ear plate 1 and the side wall of the box girder ear plate 2; the anti-deflection component 7 is installed on the upper end of the box girder ear plate 2 and abuts against the inner walls of both sides of the fork-shaped ear plate 1, and the direction of the torsional force applied by the anti-deflection component 7 to the fork-shaped ear plate 1 is opposite to the direction of deflection of the fork-shaped ear plate 1 relative to the box girder ear plate 2 in the initial state, so as to reduce the deflection wear of the fork-shaped ear plate 1.

[0031] The wear-resistant pad 6 includes a steel plate coated with polytetrafluoroethylene, a rubber plate, and a steel plate that are glued together in sequence. The polytetrafluoroethylene-coated steel plate is in contact with the side wall of the box girder ear plate 2. Multiple bolt mounting seats are vertically fixed on the side edge of the steel plate. The wear-resistant pad 6 is fixed to the fork-shaped ear plate 1 by bolts passing through the bolt mounting seats, making it replaceable and avoiding drilling holes in the box girder ear plate 2 for installation.

[0032] The anti-deflection assembly 7 includes an n-shaped mounting base, a torsion spring plate 8, a torsion spring 9, and a torque sensor 14. The n-shaped mounting base is anchored to the upper end of the box girder ear plate 2. The torsion spring 9 and the torque sensor 14 are located in the central circular groove on the upper surface of the n-shaped mounting base. The torsion spring 9 is connected in the middle of the torsion spring plate 8 so that the two ends of the torsion spring plate 8 can apply pre-torque in advance to counteract the deflection of the fork-shaped ear plate 1. The torque sensor 14 can monitor the torque of the torsion spring plate 8 in real time.

[0033] The anti-deflection assembly 7 also includes a screw support 10, a screw 11, a nut 12, and a pusher 13. The screw support 10 is fixed on the upper surface of the n-shaped mounting base and located on both sides of the torsion spring rotating plate 8. The two screw supports 10 are respectively connected to the screw 11. The two screws 11 are respectively provided with nuts 12 and pushers 13. The two pushers 13 can move on the screws 11 with the nuts 12 and can apply deflection force to the torsion spring rotating plate 8 on both sides. When the torque is small, the pushers 13 can be pushed by rotating the nuts 12, so that the pushers 13 apply a secondary force to the torsion spring rotating plate 8, thereby reducing the deflection.

[0034] The direction of the deflection force applied by the booster 13 to the torsion spring plate 8 is the same as the direction of the deflection force applied by the torsion spring 9 to the torsion spring plate 8, and both are opposite to the initial deflection direction of the fork-shaped lug 1.

[0035] The box girder ear plate 2 is provided with a spherical bearing 3 in the hole for mounting the pin 4; the fork-shaped ear plate 1 with anti-wear pad 6 is connected to the box girder ear plate 2 with spherical bearing 3 by the pin 4; the pin 4 is fixed to rotate by the baffle 5.

[0036] The assembly process of this utility model includes:

[0037] 1. Assemble the wear-resistant gasket. Apply polytetrafluoroethylene (PTFE) to the coated steel plate, glue the steel plate and rubber plate together to form a semi-assembly, and then glue the semi-assembly to the steel plate with bolt mounting base to form the wear-resistant gasket.

[0038] 2. Assemble the torque sensor, torsion spring, torsion spring plate, booster and screw block of the anti-deflection component. Anchor the n-shaped mounting base to the box girder ear plate. Install the torsion spring plate diagonally to the fork-shaped ear plate in the direction of deflection relative to the box girder ear plate. At the same time, twist the torsion spring plate in the opposite direction to make it absorb the elastic force, so that the torsion spring plate reduces the deflection of the fork-shaped ear plate and the box girder ear plate.

[0039] 3. Connect the anti-wear shims to the fork-shaped lugs using bolts.

[0040] 4. Insert the spherical bearing into the box girder ear plate.

[0041] 5. Connect the fork-shaped ear plate with anti-wear pads to the box girder ear plate with spherical bearings using pins.

[0042] 6. Finally, the assembly of the suspension bridge cable connectors is completed by rotating the fixed pin through the baffle.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0044] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0045] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A replaceable, wear-resistant suspension bridge cable connector device, characterized in that, It includes a forked ear plate (1), a box girder ear plate (2), an anti-wear pad (6), and an anti-deflection component (7); the box girder ear plate (2) is forked inside the forked ear plate (1) above it and the two are connected by a pin (4); the anti-wear pad (6) is located between the inner wall of the forked ear plate (1) and the side wall of the box girder ear plate (2); the anti-deflection component (7) is installed on the upper end of the box girder ear plate (2) and abuts against the inner walls of both sides of the forked ear plate (1). The direction of the torsional force applied by the anti-deflection component (7) to the forked ear plate (1) is opposite to the direction of deflection of the forked ear plate (1) relative to the box girder ear plate (2) in the initial state, so as to reduce the deflection wear of the forked ear plate (1).

2. The replaceable, wear-resistant suspension bridge cable connector device as described in claim 1, characterized in that, The wear-resistant pad (6) includes a steel plate coated with polytetrafluoroethylene, a rubber plate, and a steel plate that are glued together in sequence; the steel plate coated with polytetrafluoroethylene is in contact with the side wall of the box girder ear plate (2), and multiple bolt mounting seats are vertically fixed on the side edge of the steel plate. The wear-resistant pad (6) is fixed on the fork-shaped ear plate (1) by passing the bolts through the bolt mounting seats.

3. The replaceable, wear-resistant suspension bridge cable connector device as described in claim 1, characterized in that, The anti-deflection assembly (7) includes an n-shaped mounting base, a torsion spring rotating plate (8), a torsion spring (9), and a torque sensor (14); The n-shaped mounting base is anchored to the upper end of the box girder ear plate (2). The torsion spring (9) and torque sensor (14) are located in the central circular groove on the upper surface of the n-shaped mounting base. The middle part of the torsion spring rotating plate (8) is connected to the torsion spring (9) so that the two ends of the torsion spring rotating plate (8) can apply pre-torque in advance to counteract the deflection of the fork ear plate (1). The torque sensor (14) can monitor the torque of the torsion spring rotating plate (8) in real time.

4. The replaceable, wear-resistant suspension bridge cable connector device as described in claim 3, characterized in that, The anti-deflection assembly (7) also includes a screw support (10), a screw (11), a nut (12), and a booster (13); The screw support (10) is fixed on the upper surface of the n-shaped mounting base and located on both sides of the torsion spring plate (8). The two screw supports (10) are respectively connected to the screw (11). The two screws (11) are respectively provided with nuts (12) and pushers (13). The two pushers (13) can move on the screws (11) with the nuts (12) and can apply deflection force to the torsion spring plate (8) on both sides.

5. The replaceable, wear-resistant suspension bridge cable connector device as described in claim 4, characterized in that, The direction of the deflection force applied by the booster (13) to the torsion spring plate (8) is the same as the direction of the deflection force applied by the torsion spring (9) to the torsion spring plate (8), and both are opposite to the initial deflection direction of the fork-shaped ear plate (1).

6. The replaceable, wear-resistant suspension bridge cable connector device as described in claim 1, characterized in that, The box girder ear plate (2) is provided with a spherical bearing (3) in the hole for installing the pin (4); the fork-shaped ear plate (1) with anti-wear pad (6) is connected to the box girder ear plate (2) with spherical bearing (3) by the pin (4).

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