Bridge prestress cable penetrating device

Abstract

The utility model relates to the technical field of building bridge cable penetrating equipment, in particular to a bridge prestress cable penetrating device which has the advantages of reducing loss and improving practicability and comprises a cable penetrating device body, a through hole is formed in the right portion of the cable penetrating device body and used for allowing a steel wire rope to penetrate through, and a threaded hole is formed in the right portion of the cable penetrating device body and used for allowing the steel wire rope to penetrate through. The threaded hole is in threaded connection with a threaded pipe, a connecting pipe is arranged on the right portion of the threaded pipe and used for conveying a steel wire rope, a plurality of mounting grooves are formed in the connecting pipe in an array mode, and force unloading devices are installed in the mounting grooves and used for reducing friction force between the connecting pipe and the steel wire rope.

Description

Technical Field

[0001] The utility model relates to the technical field of cable-threading equipment for building bridges, in particular to a prestressed cable-threading device for bridges. Background Art

[0002] As we all know, a bridge generally refers to a structure built across rivers, lakes, or oceans to facilitate the passage of vehicles and pedestrians. To adapt to the rapid development of modern transportation, a bridge has also been extended to encompass structures built to facilitate passage across mountain streams, over unfavorable geological conditions, or to meet other transportation needs. During bridge construction, materials such as steel wire rope are required to stabilize the bridge, and the transportation of steel wire rope generally requires the use of a prestressed cable routing device.

[0003] In real life, workers need to pass the steel wire rope through the through-hole of the bridge prestressed cable-threading device, and generate traction for the steel wire rope through the clamping and rotation of the internal conveying roller. Since the steel wire rope will shake during transportation, and the steel wire rope is often not aligned with the through-hole of the bridge prestressed cable-threading device, the steel wire rope will have excessive friction with the side wall of the through-hole of the bridge prestressed cable-threading device during the rapid shuttle in the bridge prestressed cable-threading device. Long-term transportation will cause excessive friction between the steel wire rope and the side wall of the through-hole of the bridge prestressed cable-threading device, resulting in certain wear and tear, and due to the excessive wear of the through-hole Due to the excessive wear, the diameter of the wire rope is too large. As a result, when the wire rope fits against the side wall of the through hole and passes through the center of several conveyor rollers, the wire rope cannot pass through the conveyor roller vertically, and a certain offset will occur with the center line of the conveyor roller, resulting in a large displacement. At this time, the wire rope will produce a certain offset force on the conveyor roller, which increases the friction between the wire rope and the conveyor roller, causing unnecessary loss of both. In order to avoid this situation, the through hole needs to be repaired. During the repair period, the device cannot be used to continue to convey the wire rope, affecting subsequent work. Therefore, the practicality is not very good and there is room for improvement. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a prestressed cable-threading device for a bridge, which has the characteristics of reducing loss and improving practicality.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a prestressed cable-threading device for a bridge, comprising a cable-threading device body, a through-hole being provided on the right side of the cable-threading device body for the passage of a steel wire rope, and characterized in that a threaded hole is provided on the right side of the cable-threading device body, and intersecting with the through-hole, a threaded hole is threadedly connected to a threaded pipe, a connecting pipe is provided on the right side of the threaded pipe for conveying the steel wire rope, a plurality of mounting grooves are provided in the internal array of the connecting pipe, and a force unloading device is installed on each of the connecting pipes for reducing the friction between the connecting pipe and the steel wire rope.

[0008] Furthermore, the several unloading impactors are all round balls, and all roll in corresponding installation grooves. The several balls are all made of high-strength metal materials, and the metal materials are high in strength.

[0009] Furthermore, a gap is provided between the left end face of the connecting tube and the right end face of the cable threading device body, and the outside of the connecting tube is provided with anti-slip knurling to increase friction.

[0010] Furthermore, the intervals between the several relatively arranged rolling balls are larger than the diameter of the wire rope, so that the wire rope can pass through between the several rolling balls easily.

[0011] Preferably, a drive motor is installed at the rear of the cable threading device body to provide power to the cable threading device body and transport the wire rope. A fixed plate is provided at the lower part of the cable threading device body, and a support block is provided at the upper part of the fixed plate. The upper part of the support block is connected to the drive motor to support the drive motor.

[0012] Preferably, a plurality of fixing rings are provided at the lower portion of the fixing plate for connecting to external connecting devices.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a bridge prestressed cable-threading device with the following beneficial effects:

[0015] The bridge prestressed cable threading device passes the steel wire rope through the balls inside the connecting tube. When the steel wire rope is conveyed, friction occurs between the steel wire rope and several balls, and the balls roll in the installation groove, which can convert sliding friction into rolling friction, reducing the friction force to a certain extent, thereby reducing the loss caused by friction. Secondly, when excessive friction occurs between the balls or the connecting tube, causing the center line of the steel wire rope and the conveying roller to deviate, the connecting tube can be grasped and rotated, the threaded tube can be unscrewed from the threaded hole, and then replaced with a new one. The bridge prestressed cable threading device can be used again to convey the steel wire rope without affecting subsequent work, thereby improving practicality to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is an enlarged three-dimensional schematic diagram of the threaded pipe, connecting pipe and rolling ball of the utility model;

[0018] Figure 3 It is an enlarged three-dimensional schematic diagram of the threaded pipe, connecting pipe and mounting groove of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model after removing the connecting pipe and the threaded pipe;

[0020] Figure 5 For this utility model Figure 1 A schematic diagram of the structure with a partial enlargement shown in FIG.

[0021] In the figure: 1. Rope threading device body; 2. Through hole; 3. Threaded hole; 4. Threaded pipe; 5. Connecting pipe; 6. Mounting groove; 7. Rolling ball; 8. Drive motor; 9. Fixing plate; 10. Fixing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5 The utility model provides a prestressed cable-threading device for a bridge, comprising a cable-threading device body 1, a through-hole 2 being provided on the right side of the cable-threading device body 1 for passing the steel wire rope, a threaded hole 3 being provided on the right side of the cable-threading device body 1 and intersecting with the through-hole 2, a threaded tube 4 being threadedly connected to the threaded hole 3, a connecting tube 5 being provided on the right side of the threaded tube 4 for conveying the steel wire rope, a plurality of mounting grooves 6 being provided in the internal array of the connecting tube 5, and a force-unloading device being installed on each of the connecting tubes 5 for reducing the friction force generated when the steel wire rope passes through the connecting tube 5, thereby minimizing the loss caused by friction.

[0024] The several unloading impactors are all round balls 7, and they all roll in the corresponding mounting grooves 6. The wire rope enters the connecting tube 5 and contacts the several balls 7. As the wire rope is conveyed by the wire threading device body 1, the wire rope and the several balls 7 rub against each other, and the balls 7 roll. In the rolling state, the friction between the balls 7 and the wire rope is small, which can reduce losses. The several balls 7 are all made of high-strength metal materials, which are strong and have a long service life.

[0025] A gap is provided between the left end face of the connecting tube 5 and the right end face of the cable insertion device body 1 to prevent unnecessary loss caused by friction between the connecting tube 5 and the cable insertion device body 1 when the connecting tube 5 is installed on the cable insertion device body 1. The outside of the connecting tube 5 is provided with anti-slip knurling, which can increase the friction between the connecting tube 5 and the palm of the staff to prevent slipping when the connecting tube 5 is rotated.

[0026] The intervals between the several relatively arranged rolling balls 7 are all larger than the diameter of the wire rope, so that the wire rope can pass through between the several rolling balls 7 easily.

[0027] A drive motor 8 is installed at the rear of the cable threading device body 1, which is used to provide power to the cable threading device body 1 and transport the wire rope. A fixed plate 9 is provided at the lower part of the cable threading device body 1, and a support block is provided at the upper part of the fixed plate 9. The upper part of the support block is connected to the drive motor 8 to support the drive motor 8.

[0028] Several fixing rings 10 are provided at the lower part of the fixing plate 9 for connecting to external steel pipes.

[0029] To sum up, when the bridge prestressed cable threading device is in use, the staff passes the wire rope through the connecting tube 5, passes between several balls 7, passes through the threaded tube 4 and the through hole 2, and enters the bridge prestressed cable threading device, and starts the drive motor 8 to convey the wire rope. When conveying the wire rope, the wire rope and several balls 7 rub against each other, and the balls 7 roll in the installation groove 6 to convey the wire rope. After using for a period of time, when the balls 7 have excessive friction, you can grab the anti-slip knurling of the connecting tube 5 and rotate the connecting tube 5 to drive the threaded tube 4 to be screwed out of the threaded hole 3. Then, take the anti-slip knurling of the new connecting tube 5, align the threaded tube 4 at one end of the connecting tube 5 with the threaded hole 3 on the right side of the cable threading device body 1, and screw it into the threaded hole 3. Until it stops rotating, the wire rope can be passed through the balls 7 in the connecting tube 5 and into the cable threading device body 1 for transportation again.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prestressed cable-threading device for a bridge, comprising a cable-threading device body (1), wherein a through hole (2) is provided on the right side of the cable-threading device body (1) for passing a steel wire rope, and characterized in that: The right part of the wire-threading device body (1) is provided with a threaded hole (3) and intersects with the through hole (2); the threaded hole (3) is threadedly connected to a threaded tube (4); the right part of the threaded tube (4) is provided with a connecting tube (5) for conveying a steel wire rope; the internal array of the connecting tube (5) is provided with a plurality of mounting grooves (6), and each of the connecting tubes is provided with a force unloading device for reducing the friction between the connecting tube and the steel wire rope.

2. A bridge prestressed cable-threading device according to claim 1, characterized in that: The plurality of force-releasing impactors are all circular rolling balls (7) and roll in corresponding mounting grooves (6). The plurality of rolling balls (7) are all made of a metal material with high strength. The metal material has high strength.

3. A prestressed cable-threading device for bridges according to claim 2, characterized in that: A gap is provided between the left end surface of the connecting tube (5) and the right end surface of the cable threading device body (1), and the exterior of the connecting tube (5) is provided with anti-slip knurling for increasing friction.

4. A bridge prestressed cable-threading device according to claim 3, characterized in that: The intervals between the several relatively arranged rolling balls (7) are all larger than the diameter of the steel wire rope, making it easy for the steel wire rope to pass through between the several rolling balls (7).

5. The prestressed cable-threading device for bridges according to claim 1, characterized in that: A driving motor (8) is installed at the rear of the cable-threading device body (1) for providing power to the cable-threading device body (1) and conveying the wire rope. A fixing plate (9) is provided at the lower part of the cable-threading device body (1), and a supporting block is provided at the upper part of the fixing plate (9). The upper part of the supporting block is connected to the driving motor (8) to support the driving motor (8).

6. A prestressed cable-threading device for bridges according to claim 5, characterized in that: A plurality of fixing rings (10) are provided at the lower portion of the fixing plate (9) for connecting to external connecting devices.

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