Bridge stay cable fixing device

Abstract

The utility model relates to a bridge stay cable fixing device which comprises a base, a supporting seat and a connector are arranged on the base, a threaded sleeve is rotationally arranged on the supporting seat, a threaded rod matched with the threaded sleeve is arranged in the threaded sleeve, a limiting ring is arranged at the end, close to the connector, of the threaded rod, and a supporting rod is vertically arranged at the end, away from the limiting ring, of the threaded rod. The supporting rod is slidably connected into a sliding groove in the base, a gear ring is arranged on the threaded sleeve and meshed with a gear, and the gear is connected with a motor. The limiting ring is pushed to move through matching of the threaded sleeve and the threaded rod, the stay cable is bent under the action of the limiting ring, and the tensile force and the relaxation degree of the stay cable are controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge device technical field, specifically point to a bridge cable fixed device. BACKGROUND

[0002] Cable-stayed bridge is a kind of bridge that main beam is directly pulled on bridge tower by many cables, is a structural system that tower is pressure bearing, cable is tension and beam body is bending bearing.It can be regarded as multi-span elastic support continuous beam that cable replaces support pier, can reduce bending moment in beam body, reduce construction height, reduce structural weight and save material.

[0003] Now general bridge transverse cable is directly fixed in bridge main body by cement concrete etc., and this installation mode will exist error when installing, and the fixed position of cable-stayed cable cannot be accurately determined.

[0004] When installing, cable-stayed cable tension exists error or cable slackens and elongates, cable cannot keep original length and stress, so that the protection system of cable is cracked, cable is corroded, and service life is influenced. INVENTION CONTENTS

[0005] To solve the deficiency in prior art, the utility model provides a bridge cable fixed device.

[0006] The utility model discloses a kind of bridge cable fixed device, including base, support seat and connecting head are set on base, support seat is rotationally arranged screw sleeve on, screw sleeve is set in screw rod that is matched, screw rod is close to the end of connecting head and set limit ring, screw rod is vertically set support rod at the end away from limit ring, support rod is slidably connected in the sliding slot on base, screw sleeve is set gear ring, gear ring is meshed and set gear, gear is connected motor.

[0007] Base is set on bridge, one end of cable-stayed cable is fixed on connecting head, cable-stayed cable is connected in cable tower at the other end passing through limit ring, motor is driven screw sleeve to rotate by gear and gear ring cooperation, screw rod set in screw sleeve is displaced under the action of support rod and screw sleeve, screw rod is extruded cable-stayed cable by limit ring and realizes the control of cable-stayed cable tension and slack degree, it is convenient for construction personnel to install and maintain and adjust cable-stayed cable, round corner is set in limit ring, reduce the abrasion of cable-stayed cable, prolong service life.

[0008] As preferred, support is symmetrically set on base, a plurality of adjusting holes are uniformly set on support, support is set pivot by adjusting hole, and pulley is set on pivot.

[0009] The pulley is pressed on the stay cable to make the stay cable bend, control the angle of the stay cable, and fine tune the angle of the stay cable through the rotating shaft provided with different adjusting holes, so that the stay cable reaches a better stress condition, the error caused by installation is reduced, the contact between the pulley and the stay cable is rotation, and the damage of the stay cable caused by friction is reduced through the rotation of the pulley.

[0010] As preferred, symmetrical connecting rods are hinged on the rotating shaft on both sides of the pulley, and baffles are symmetrically arranged on the rotating shaft on both sides of the connecting rods.

[0011] The stay cable passes through the clamp head and is locked through the nut, the clamp head is hinged on the connecting rod, the connecting rod is hinged on the rotating shaft, the clamp head is convenient to adjust the angle along with the stay cable, the baffles on the connecting rod are used to limit the transverse shaking of the stay cable under the action of external force, reduce the abrasion caused by the shaking, and prevent the stay cable from being separated from the pulley, thereby prolonging the use of the stay cable.

[0012] As preferred, the cross section of the sliding groove is inverted "T" shape, and the lower end of the supporting rod is provided with a sliding block matched with the sliding groove.

[0013] The supporting rod moves along the sliding groove under the cooperation of the sliding groove and the sliding block, so that the rotation of the threaded rod is prevented when the tension and relaxation degree of the stay cable are adjusted, and the shaking caused by the stress of the threaded rod is reduced.

[0014] As preferred, a bearing is arranged on the supporting seat, and the inner ring of the bearing is connected with the threaded sleeve.

[0015] The use of the bearing reduces the friction force in the rotation process of the threaded sleeve, facilitates transmission, the axial force on the threaded rod is transmitted to the supporting seat through the threaded rod and the bearing, the abrasion of the threaded sleeve in the rotation process is reduced, and the maintenance cost is reduced.

[0016] Compared with the prior art, the beneficial effects of the utility model lie in that the threaded sleeve and the limiting ring are used, the limiting ring on the threaded rod is driven to make the stay cable bend under the driving of the motor, so that the tension and relaxation degree of the stay cable are controlled, the pulley is pressed on the stay cable to make the stay cable bend, the angle of the stay cable is controlled, the angle of the stay cable is fine tuned through the connection of different adjusting holes, the stay cable reaches a better stress condition, the error caused by installation is reduced, the stay cable passes through the clamp head and is locked through the nut, the clamp head is hinged on the connecting rod, the connecting rod is hinged on the rotating shaft, the clamp head is convenient to adjust the angle along with the stay cable, the baffles on the connecting rod are used to limit the transverse shaking of the stay cable under the action of external force, reduce the abrasion caused by the shaking, and prevent the stay cable from being separated from the pulley, thereby prolonging the use of the stay cable. BRIEF DESCRIPTION OF DRAWINGS

[0017] ATTACHED Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 is a left view of the utility model. Fig. 2 Figure 2 is a left view of the utility model.

[0019] The reference signs shown in the drawings: 1, base; 2, threaded rod; 3, threaded sleeve; 4, bearing; 5, support seat; 6, gear ring; 7, gear; 8, motor; 9, limiting ring; 10, connecting head; 11, support; 12, adjusting hole; 13, chuck; 14, nut; 15, pulley; 16, rotating shaft; 17, baffle; 18, connecting rod; 19, support rod; 20, sliding groove; 21, sliding block. DETAILED DESCRIPTION

[0020] The utility model is further described below in combination with specific embodiments, such as Figs. 1-2 As shown in a kind of bridge cable-stayed cable fixing device, including base 1, support seat 5 and connecting head 10 are arranged on base 1, threaded sleeve 3 is rotationally arranged on support seat 5, threaded rod 2 is arranged in threaded sleeve 3 in cooperation, threaded rod 2 is close to the end of connecting head 10 and is arranged limiting ring 9, threaded rod 2 is vertically arranged support rod 19 away from the end of limiting ring 9, support rod 19 is slidably connected in the sliding groove 20 on base 1, gear ring 6 is arranged on threaded sleeve 3, gear ring 6 is arranged gear 7 in meshing, gear 7 is connected motor 8. Base 1 is arranged on bridge, one end of cable-stayed cable is fixed on connecting head 10, cable-stayed cable passes through limiting ring 9 and is connected in cable tower on the other end, motor 8 is driven threaded sleeve 3 to rotate by gear 7 and gear ring 6 cooperation, threaded rod 2 arranged in threaded sleeve 3 is displaced under the action of support rod 19 and threaded sleeve 3, threaded rod 2 is extruded cable-stayed cable by limiting ring 9, so that cable-stayed cable is bent, realize the tension and relaxation degree of control cable-stayed cable, it is convenient for construction personnel to install and maintain when adjusting cable-stayed cable, limiting ring 9 is arranged in round angle, reduce the wear and tear of cable-stayed cable, prolong service life.

[0021] Support 11 is symmetrically arranged on base 1, and a plurality of adjusting holes 12 are uniformly arranged on support 11, rotating shaft 16 is arranged on support 11 through adjusting hole 12, and pulley is arranged on rotating shaft 16. Pulley 15 is pressed on cable-stayed cable, so that cable-stayed cable is bent, the angle of cable-stayed cable is controlled, the angle of cable-stayed cable is fine-tuned by rotating shaft 16 arranged in different adjusting holes 12, so that cable-stayed cable reaches better stress condition, reduces the error caused by installation, and the contact between pulley 15 and cable-stayed cable is rotation, so that the damage of cable-stayed cable caused by friction is reduced by the rotation of pulley 15.

[0022] The shaft 16 is symmetrically hinged with the connecting rod 18 on both sides of the pulley 15, the shaft 16 is symmetrically provided with the baffle 17 on both sides of the connecting rod 18, the end of the connecting rod 18 away from the shaft 16 is hinged with the chuck 13, and the chuck 13 is provided with the matched nut 14. The stay rope passes through the chuck 13 and is locked through the nut 14, the chuck 13 is hinged on the connecting rod 18, the connecting rod 18 is hinged on the shaft 16, the chuck 13 is convenient to adjust the angle along with the stay rope, the baffle 17 on the connecting rod 18 is used for limiting the transverse shaking of the stay rope under the action of the external force, reducing the abrasion caused by the shaking, and preventing the stay rope from being separated from the pulley 15, and prolonging the use of the stay rope.

[0023] The cross section of the chute 20 is inverted "T" shape, and the lower end of the supporting rod 19 is provided with the sliding block 21 matched with the chute 20. The supporting rod 19 moves along the chute 20 under the cooperation of the chute 20 and the sliding block 21, preventing the threaded rod 2 from rotating when adjusting the tension and relaxation degree of the stay rope, and reducing the shaking of the threaded rod 2 caused by the stress.

[0024] The supporting seat 5 is provided with the bearing 4, the inner ring of the bearing 4 is connected with the threaded sleeve 3, the use of the bearing 4 reduces the friction force in the rotating process of the threaded sleeve 3, facilitates transmission, the axial force on the threaded rod 2 is transmitted to the supporting seat 5 under the action of the threaded rod 2 and the bearing 4, reducing the abrasion of the threaded sleeve 3 in the rotating process and reducing the maintenance cost.

[0025] Working principle: the base 1 is arranged on the bridge, one end of the stay rope is fixed on the connector 10, the other end of the stay rope is connected to the cable tower through the limiting ring 9, the threaded sleeve 3 rotates to displace the supporting rod 19 and the limiting ring 9, the stay rope arranged on the limiting ring 9 is stressed and bent, the tension and relaxation degree of the stay rope are controlled by changing the bending degree of the stay rope; the pulley 15 is pressed on the stay rope to make the stay rope bend, the angle of the stay rope is controlled, the angle of the stay rope is fine adjusted by connecting different adjusting holes 12; the chuck 13 adjusts the angle along with the stay rope, is locked through the nut 14, the baffle 17 is arranged on both sides of the connecting rod 18 to prevent the stay rope from shaking transversely under the action of the external force.

[0026] It should be understood that the embodiments are only used for illustrating the utility model and are not used for limiting the range of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the range defined by the application.

Claims

1. A bridge stay cable fixing device comprising a base (1), characterized in that: The base (1) is provided with a support seat (5) and a connecting head (10), the support seat (5) is provided with a threaded sleeve (3) rotatingly, the threaded sleeve (3) is provided with a matched threaded rod (2) inside, the threaded rod (2) is provided with a limiting ring (9) near the connecting head (10), the threaded rod (2) is provided with a support rod (19) vertically far away from the limiting ring (9), the support rod (19) is slidingly connected in a sliding groove (20) on the base (1), the threaded sleeve (3) is provided with a gear ring (6), the gear ring (6) is engaged with a gear (7), and the gear (7) is connected with the output end of a motor (8).

2. A bridge stay cable fixing device according to claim 1, characterized in that: The base (1) is provided with a support seat (5) and a connecting head (10), the support seat (5) is provided with a threaded sleeve (3) rotatingly, the threaded sleeve (3) is provided with a matched threaded rod (2) inside, the threaded rod (2) is provided with a limiting ring (9) near the connecting head (10), the threaded rod (2) is provided with a support rod (19) vertically far away from the limiting ring (9), the support rod (19) is slidingly connected in a sliding groove (20) on the base (1), the threaded sleeve (3) is provided with a gear ring (6), the gear ring (6) is engaged with a gear (7), and the gear (7) is connected with the output end of a motor (8).

3. A bridge stay cable fixing device according to claim 2, characterised in that: The base (1) is provided with a support seat (5) and a connecting head (10), the support seat (5) is provided with a threaded sleeve (3) rotatingly, the threaded sleeve (3) is provided with a matched threaded rod (2) inside, the threaded rod (2) is provided with a limiting ring (9) near the connecting head (10), the threaded rod (2) is provided with a support rod (19) vertically far away from the limiting ring (9), the support rod (19) is slidingly connected in a sliding groove (20) on the base (1), the threaded sleeve (3) is provided with a gear ring (6), the gear ring (6) is engaged with a gear (7), and the gear (7) is connected with the output end of a motor (8).

4. A bridge stay cable fixation device according to claim 1, characterized in that: The sliding groove (20) is inverted "T" shaped in cross section, and the support rod (19) is provided with a sliding block (21) matched with the sliding groove (20) at the lower end.

5. A bridge stay cable fixation device according to claim 1, characterized in that: The support seat (5) is provided with a bearing (4), and the inner ring of the bearing (4) is connected with the threaded sleeve (3).

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