Rope for bridge construction

Abstract

The utility model provides a rope for bridge construction, and relates to the field of ropes for bridge construction, the rope comprises a central rope, a winding rope and a fixing piece, the central rope comprises an outer wear-resistant layer, the inner side of the wear-resistant layer is provided with reinforcing ribs, the inner side of the wear-resistant layer is provided with bending-resistant pieces, a flexible piece is connected between the bending-resistant pieces, and the flexible piece is connected with the winding rope. A steel wire ring layer is arranged on the inner side of the bending-resistant part, a hemp core layer is arranged on the inner side of the steel wire ring layer, the winding rope is wound on the outer side of the center rope, the fixing part is fixed to the outer side of the center rope and the outer side of the winding rope, and the outer side of the fixing part is connected with a fixing bolt. The cable rope for bridge construction solves the problems that an existing cable rope for bridge construction is integrally soft, poor in distortion resistance and poor in abrasion resistance in the long-term use process.

Description

Technical Field

[0001] The utility model relates to the technical field of ropes and cables for bridge construction, in particular to a rope and cable for bridge construction. Background Art

[0002] Cables refer to large ropes used to tow or moor ships or to tow ships at docks. They are also commonly used in bridge load-bearing structures or crane systems. They mainly include prefabricated parallel steel wire strands for main cables of suspension bridges, cable-stayed cables for cable-stayed bridges, slings for suspension bridges and arch bridges, as well as tie rods, anchor cables, construction anchor cables, and handrail cables for inspection roads. The cable system of large-span bridges is the main load-bearing structure of suspension bridges, cable-stayed bridges, and arch suspension bridges. As they are located across rivers, lakes, and seas and in a load-bearing environment, they bear dynamic and static loads and are exposed to wind, rain, humidity, and polluted air for a long time. They are subject to stress corrosion, fatigue corrosion, and metal corrosion. The cable body and anchor structure are susceptible to corrosion damage. In order to ensure the safety of bridge and cable structures, cables must be protected from corrosion. After searching, the prior art (publication number: CN213569125U) records "a cable for bridge construction, specifically related to the field of bridge construction technology, including a cable housing, a locking mechanism is arranged outside the end of the cable housing, and an auxiliary locking mechanism is arranged at the end of the cable housing; the locking mechanism includes a U-shaped threaded rod, a locking block is arranged at the bottom of the U-shaped threaded rod, the U-shaped threaded rod is sleeved on the outside of the cable housing, and two first through holes are penetrated in the middle of the locking block, and the first through holes match the structure of the U-shaped threaded rod. Two locking nuts are arranged at the bottom of the locking nut, and the inner part of the locking nut is provided with an internal thread, and the outer surfaces of both ends of the U-shaped threaded rod are provided with external threads. The utility model is simple to operate, so that when the cable is suspended with a hook, it provides double protection, is not easy to fall off, has a simple structural design, is highly practical, improves safety, and improves the tensile strength of the cable."

[0003] Although the cables used for bridge construction in the prior art have achieved the effects of tensile resistance and anti-slippage, there are still some shortcomings: the steel wire rope core involved in the existing bridge construction cables is coaxially twisted, which makes the rope as a whole relatively soft and has poor anti-twisting performance. Secondly, during long-term use, the outer side of the steel wire rope is easily worn due to the winding and bending of the rope connection with the crane, which leads to poor overall wear resistance of the rope and reduces its service life. Utility Model Content

[0004] In order to overcome the defects of the prior art, a rope for bridge construction is now provided to solve the problems that the existing cables for bridge construction are relatively soft overall, have poor anti-twisting performance, and have poor anti-wear performance during long-term use.

[0005] To achieve the above-mentioned purpose, a rope cable for bridge construction is provided, comprising: a center rope, a winding rope and a fixing part, the center rope comprises an outer wear-resistant layer, and a reinforcing rib is provided on the inner side of the wear-resistant layer, and a bending-resistant part is provided on the inner side of the wear-resistant layer, a flexible part is connected between the bending-resistant parts, and a steel wire ring layer is provided on the inner side of the bending-resistant parts, and a hemp core layer is provided on the inner side of the steel wire ring layer, the winding rope is wound around the outer side of the center rope, and the fixing part is fixed on the outer side of the center rope and the winding rope, and a fixing bolt is connected to the outer side of the fixing part.

[0006] Furthermore, the wear-resistant layer is made of carbon fiber material, and the reinforcing ribs are arranged at equal intervals in the circumferential direction of the wear-resistant layer.

[0007] Furthermore, a waterproof layer is provided on the inner side of the wear-resistant layer, and a first filling layer is provided on the inner side of the waterproof layer, and the anti-bending part and the flexible part are provided between the waterproof layer and the first filling layer.

[0008] Furthermore, the anti-bending member is made of polyurethane material, and the flexible member is made of a wire mesh structure, and the anti-bending member and the flexible member are connected end to end.

[0009] Furthermore, a second filling layer is provided inside the first filling layer, and the wire ring layer is located inside the second filling layer, and the second filling layer is made of epoxy resin.

[0010] Furthermore, the fixing member is configured as a disc structure, and a center hole is opened at the center of the fixing member, and an inclined hole is opened outside the center hole, and the center rope and the winding rope pass through the center hole and the inclined hole respectively.

[0011] Furthermore, the central hole and the inclined hole are connected inside the fixing piece, and a countersunk hole is provided on the outer wall of the fixing piece, and a threaded hole is provided inside the countersunk hole, and a fixing bolt is connected in the threaded hole.

[0012] The beneficial effects of the utility model are:

[0013] 1. The annular anti-twisting structure is formed by using bending-resistant parts and flexible parts, so that the rope has good anti-twisting performance when the rope is pulled under force during use. By setting the winding rope to be twisted in a spiral shape on the outside of the central rope, the load distribution of each wire rope is relatively uniform, so the strength of the wire rope is improved, the tendency of twisting and entanglement is small, the work safety is high, and the strands of rope are not easy to separate. During the vertical lifting process, each rope is evenly stressed, avoiding the tendency of the wire rope itself to rotate and backlash, which will cause the heavy object to rotate when lifting;

[0014] 2. The wear-resistant layer and reinforcing ribs made of carbon fiber material are used to enhance the anti-friction performance between the wire rope circles during the lifting and winding process, thereby reducing the wear and tear of the wire rope itself. At the same time, the center hole, inclined hole and threaded hole included in the fixing parts make the center rope and the winding rope intertwined with each other fixed by the fixing bolts connected to the threaded holes, thereby enhancing the connection strength between the wire ropes and improving the stability during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the local structure of a cable according to an embodiment of the utility model.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the center rope of an embodiment of the utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure of the bending-resistant part and the flexible part in an embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of a top cross-sectional structure of a fixing member according to an embodiment of the utility model.

[0019] In the figure: 1. center rope; 11. wear-resistant layer; 12. reinforcing ribs; 13. waterproof layer; 14. bending-resistant parts; 15. flexible parts; 16. first filling layer; 17. second filling layer; 18. wire ring layer; 19. hemp core layer; 2. winding rope; 3. fixing part; 31. center hole; 32. inclined hole; 33. threaded hole; 34. countersunk hole; 4. fixing bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figures 1 to 4 As shown, the utility model provides a rope cable for bridge construction, including: a center rope 1, a winding rope 2 and a fixing member 3, the center rope 1 includes an outer wear-resistant layer 11, and a reinforcing rib 12 is provided on the inner side of the wear-resistant layer 11, and a bending-resistant member 14 is provided on the inner side of the wear-resistant layer 11, and a flexible member 15 is connected between the bending-resistant members 14, and a steel wire ring layer 18 is provided on the inner side of the bending-resistant member 14, and a hemp core layer 19 is provided on the inner side of the steel wire ring layer 18, the winding rope 2 is wound around the outer side of the center rope 1, and the fixing member 3 is fixed on the outer side of the center rope 1 and the winding rope 2, and a fixing bolt 4 is connected to the outer side of the fixing member 3.

[0022] In this embodiment, the center rope 1, the winding rope 2 and the fixing member 3 constitute the main structure of the rope for bridge construction involved in this application.

[0023] Specifically, the winding rope 2 is arranged to be a spiral structure wound around the outside of the central rope 1, and the central rope 1 is a straight structure, and the winding rope 2 is arranged to be a multi-strand structure.

[0024] Specifically, by arranging the steel wire ring layer 18 outside the hemp core layer 19, the structural strength and bending resistance of the hemp core layer 19 are increased, and the hemp core layer 19 is made of oil-immersed hemp rope material.

[0025] like Figure 2 and Figure 3 As shown, the wear-resistant layer 11 is made of carbon fiber material, and the reinforcing ribs 12 are arranged at equal intervals in the circumferential direction of the wear-resistant layer 11, a waterproof layer 13 is provided on the inner side of the wear-resistant layer 11, and a first filling layer 16 is provided on the inner side of the waterproof layer 13, and the anti-bending part 14 and the flexible part 15 are provided between the waterproof layer 13 and the first filling layer 16, the anti-bending part 14 is made of polyurethane material, and the flexible part 15 is provided as a wire mesh structure, and the anti-bending part 14 and the flexible part 15 are connected end to end, a second filling layer 17 is provided on the inner side of the first filling layer 16, and the wire ring layer 18 is located on the inner side of the second filling layer 17, and the second filling layer 17 is made of epoxy resin material.

[0026] Through the above technical solution, by providing the wear-resistant layer 11 and the reinforcing ribs 12, the wear-resistant effect of the steel rope is increased during use, thereby improving the wear-resistant strength of the single-strand steel wire rope.

[0027] Specifically, by providing a steel wire mesh structure for the flexible member 15 and setting the flexible member 15 as an arc-shaped structure, the flexibility of the steel wire rope is improved. At the same time, the bending-resistant member 14 made of polyurethane has a certain elastic buffering performance.

[0028] like Figure 1 and Figure 4 As shown, the fixing member 3 is configured as a disc structure, and a center hole 31 is provided at the center of the fixing member 3, and an inclined hole 32 is provided on the outside of the center hole 31, and the center rope 1 and the winding rope 2 pass through the center hole 31 and the inclined hole 32 respectively, the center hole 31 and the inclined hole 32 are connected inside the fixing member 3, and a countersunk hole 34 is provided on the outer wall of the fixing member 3, and a threaded hole 33 is provided on the inner side of the countersunk hole 34, and a fixing bolt 4 is connected in the threaded hole 33.

[0029] Through the above technical solution, the center rope 1 and the winding rope 2 are stacked and alternately arranged inside the fixing member 3, and are connected to the threaded hole 33 through the fixing bolt 4, so that the fixing bolt 4 penetrates between the center rope 1 and the winding rope 2, connecting them in series to achieve fixation.

[0030] Specifically, the countersunk hole 34 is provided so that the fixing bolt 4 can be kept flush with the fixing member 3 after being connected, and the outer diameter of the fixing member 3 is the same as the outer diameter of the cable.

[0031] When in use, the bending-resistant parts and the flexible parts are used to form an annular anti-twisting structure, so that during the use of the rope, the rope has good anti-twisting performance when the rope is pulled by force. By arranging the winding rope to be spirally twisted alternately on the outside of the central rope, the load distribution of each steel wire rope is relatively uniform, so the strength of the steel wire rope is improved, the tendency of torsion and entanglement is smaller, the working safety is greater, and the strands of rope are not easy to separate. During the vertical lifting process, each rope is subjected to uniform force, avoiding the tendency of the steel wire rope itself to rotate when lifting. The dangerous phenomenon; the wear-resistant layer and reinforcing ribs made of carbon fiber material are used to enhance the anti-friction performance between the steel wire rope coils during the lifting and winding process, thereby reducing the use wear of the steel wire rope itself. At the same time, the center rope and the winding rope that are intertwined with each other are fixed by the fixing bolts connected to the threaded holes through the center hole, the inclined hole and the threaded hole included in the fixing part, so that the connection strength between the steel wire ropes is enhanced, thereby improving the stability during the lifting process.

[0032] The bridge construction cable of the utility model can effectively solve the problems of existing bridge construction cables being relatively soft overall, having poor anti-twisting performance, and having poor anti-wear performance during long-term use. It increases the torsion resistance and flexibility of the existing cables on the basis of existing bridge construction cable technology, and at the same time improves the anti-wear performance during use, thereby extending the service life.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rope for bridge construction, comprising: A center rope (1), a winding rope (2) and a fixing member (3), characterized in that: the center rope (1) includes an outer wear-resistant layer (11), and a reinforcing rib (12) is provided on the inner side of the wear-resistant layer (11), and a bending-resistant member (14) is provided on the inner side of the wear-resistant layer (11), a flexible member (15) is connected between the bending-resistant members (14), and a steel wire ring layer (18) is provided on the inner side of the bending-resistant members (14), and a hemp core layer (19) is provided on the inner side of the steel wire ring layer (18), the winding rope (2) is wound around the outer side of the center rope (1), and the fixing member (3) is fixed on the outer side of the center rope (1) and the winding rope (2), and a fixing bolt (4) is connected to the outer side of the fixing member (3).

2. A bridge construction cable according to claim 1, characterized in that: The wear-resistant layer (11) is made of carbon fiber material, and the reinforcing ribs (12) are arranged at equal intervals in a circumferential direction around the wear-resistant layer (11).

3. A bridge construction rope according to claim 1, characterized in that: A waterproof layer (13) is provided on the inner side of the wear-resistant layer (11), a first filling layer (16) is provided on the inner side of the waterproof layer (13), and the bending-resistant component (14) and the flexible component (15) are provided between the waterproof layer (13) and the first filling layer (16).

4. A bridge construction rope according to claim 1, characterized in that: The anti-bending member (14) is made of polyurethane material, and the flexible member (15) is made of a wire mesh structure, and the anti-bending member (14) and the flexible member (15) are connected end to end.

5. A bridge construction rope according to claim 3, characterized in that: A second filling layer (17) is provided inside the first filling layer (16), the wire ring layer (18) is located inside the second filling layer (17), and the second filling layer (17) is made of epoxy resin.

6. A bridge construction rope according to claim 1, characterized in that: The fixing member (3) is configured as a disc structure, and a center hole (31) is provided at the center of the fixing member (3), and an inclined hole (32) is provided outside the center hole (31), and the center rope (1) and the winding rope (2) respectively pass through the center hole (31) and the inclined hole (32).

7. A bridge construction rope according to claim 6, characterized in that: The central hole (31) and the inclined hole (32) are connected inside the fixing member (3), and a countersunk hole (34) is provided on the outer wall of the fixing member (3), and a threaded hole (33) is provided inside the countersunk hole (34), and a fixing bolt (4) is connected to the threaded hole (33).

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