Cable supporting device of cable crane

Abstract

The utility model discloses a cable supporting device of a cable crane, and belongs to the technical field of bridge construction. The walking frame is provided with a main cable walking wheel shaft, the main cable walking wheel shaft is sleeved with a plurality of main cable walking wheels at intervals, the main cable walking wheel shaft is further sleeved with a plurality of wallboards, the lower ends of the wallboards penetrate into a hanging frame shaft, and the hanging frame shaft is further sleeved with a plurality of sets of cable passing wheel installation units with different heights; each group of cable passing wheel mounting unit comprises two adjacent hanging plates, the upper ends of the hanging plates are sleeved on the hanging frame shaft, a cable passing wheel shaft is connected between the lower ends of the two hanging plates of each group of cable passing wheel mounting unit, and a cable passing wheel is sleeved on the cable passing wheel shaft. The device is simple in structure, convenient to disassemble and assemble, stable in walking, capable of layering a main cable, a traction cable and a hoisting cable, capable of effectively solving the problem that the cables are wound due to overlarge sag in the air, stable and smooth in operation along with movement of a sports car in the same direction, low in failure rate, capable of greatly saving maintenance cost and time and high in practicability. And the hoisting work can be smoothly carried out.

Description

Technical Field

[0001] This utility model relates to a cable-stayed support device, belonging to the field of bridge construction technology. Background Technology

[0002] A cable-stayed crane is an integrated lifting and hoisting system that uses flexible steel cables (load-bearing cables) as an overhead support structure. A trolley carrying suspended heavy loads travels back and forth on the load-bearing cables, providing both vertical (lifting) and horizontal (traction) transport functions. Due to its advantages such as strong span capacity, large lifting capacity, and minimal restriction by terrain conditions, it is widely used, especially suitable for the construction of long-span bridges. The cable-stayed crane system consists of major systems including towers, anchorages, main cables, lifting cables, traction cables, cable saddles, traveling cranes, lifting equipment, lifting and traction winches, and a safety control system.

[0003] The main cable, traction cable, and lifting cable sag significantly due to their own weight, causing tangling and interlocking between the ropes, affecting the safety of the trolley's movement and lifting operations. Currently, most cable crane systems use self-propelled single-row wheeled cable supports, which are directly pushed or pulled by the trolley to travel on the cable. However, during operation, the cable supports are prone to "jumping" and overturning due to uneven sag of the main cable. Furthermore, because the cable support bracket is rigidly connected to the upper traveling trolley, the weight difference between the traction cable and the main cable causes an unbalanced horizontal force on the rollers supporting the traction cable and lifting cable. This force exerts a bending and torsional effect on the traveling trolley in the vertical plane, causing the traveling trolley to rub against the main cable, damaging it and affecting the safe operation of the cable crane system. Summary of the Invention

[0004] The purpose of this invention is to provide a cable-stayed sling device. This cable-stayed sling device has a simple structure, is easy to assemble and disassemble, and moves smoothly and stably. It can separate the main cable, traction cable, and lifting cable into layers.

[0005] The technical solution of this utility model is as follows: A cable suspension support device includes a traveling frame, on which a main cable traveling wheel axle is provided. Multiple main cable traveling wheels are spaced and sleeved on the main cable traveling wheel axle. Multiple wall plates are also sleeved on the main cable traveling wheel axle. The lower ends of the multiple wall plates are inserted into a hanging frame axle. Multiple sets of cable-passing wheel installation units of different heights are also sleeved on the hanging frame axle. Each set of cable-passing wheel installation units includes two adjacent hanging plates. The upper end of the hanging plates is sleeved on the hanging frame axle. A cable-passing wheel axle is connected between the lower ends of the two hanging plates in each set of cable-passing wheel installation units. Cable-passing wheels are sleeved on the cable-passing wheel axle.

[0006] In the aforementioned cable-stayed support device, the traveling frame is composed of two long horizontal beams and two short horizontal beams connected to each other to form a square frame structure. Inside the square frame structure, two intermediate horizontal beams are symmetrically arranged in the middle. The two ends of the intermediate horizontal beams are fixedly connected to the two long horizontal beams respectively. Each intermediate horizontal beam is connected to an adjacent short horizontal beam by a long main cable traveling wheel axle. Two short main cable traveling wheel axles are connected between the two intermediate horizontal beams. Multiple main cable traveling wheels are spaced out on both the short and long main cable traveling wheel axles.

[0007] In the aforementioned cable-stayed support device, bushings are fitted between two adjacent main cable travel wheels on the main cable travel wheel axle and between the main cable travel wheel and the wall panel. Bushings are also fitted between the innermost main cable travel wheel on the long main cable travel wheel axle and the intermediate flat beam.

[0008] In the aforementioned cable suspension support device, multiple wall panels on the left and right sides are symmetrically distributed. A limiting wheel axle is connected between two adjacent wall panels on each side. A limiting wheel is sleeved on the limiting wheel axle. The limiting wheel is located directly below the main cable traveling wheel. Bushings are sleeved on the limiting wheel axle between the limiting wheel and the wall panel on both sides of the limiting wheel.

[0009] In the aforementioned cable-stayed support device, the limiting wheel axle is located between two outermost wall panels, and each limiting wheel axle has only one limiting wheel, which is located directly below the main cable traveling wheel near the outermost end.

[0010] In the aforementioned cable-stayed support device, bushings are fitted between the wall plate and the hanging plate on the hanger shaft, between the two hanging plates of each set of cable wheel installation units, and between two adjacent wall plates.

[0011] In the aforementioned cable-stayed support device, a positioning shaft is inserted through the middle of each of the hanging plates.

[0012] In the aforementioned cable-stayed support device, bushings are fitted between adjacent wall panels on the positioning shaft of the hanging plate.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model has the following advantages:

[0014] The cable support system of this invention is not a single-row walking wheel system. Two intermediate horizontal beams are installed in the middle of the walking frame, and two rows of main cable walking wheels are located between the two intermediate horizontal beams. This makes the entire walking frame move more smoothly and prevents the long horizontal beams from contacting the main cables, thus avoiding wear on the main cables. Furthermore, the use of only two intermediate horizontal beams in the middle keeps the overall weight of the walking frame from increasing too much and also facilitates installation.

[0015] Two limit wheels are installed to "lock" two of the main cables to the walking system, preventing the main cable walking wheels from jumping and making the walking system more stable. The limit wheels can rotate, which can reduce the friction between the main cables and the walking system.

[0016] The wall panel and the walking system are connected by the main cable walking wheel axle, and the wall panel and the hanging plate are connected by the hanging frame axle. When the support cable device moves, the wall panel and the hanging plate can rotate, which eliminates the unbalanced horizontal force generated by the cable wheel supporting the traction cable and the lifting cable due to the weight difference between the traction cable and the main cable, so that the walking trolley is no longer subjected to bending and torsion in the vertical plane.

[0017] By setting up hanging plates at different heights, the main cable, traction cable, and lifting cable are separated into layers, thus solving the problem of rope tangling and knotting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a top view of the traveling frame structure.

[0020] Figure 3 for Figure 1 A schematic diagram of the side structure.

[0021] Attached reference numerals: 1. Traveling frame; 1-1. Long horizontal beam; 1-2. Short horizontal beam; 1-3. Intermediate horizontal beam; 2. Main cable traveling wheel; 3. Main cable traveling wheel axle; 3-1. Short main cable traveling wheel axle; 3-2. Long main cable traveling wheel axle; 4. Wall panel; 5. Limiting wheel; 6. Limiting wheel axle; 7. Hanging frame axle; 8. Hanging plate; 9. Bushing; 10. Cable guide wheel; 11. Cable guide wheel axle; 12. Hanging plate positioning axle. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0023] An embodiment of this utility model: A cable-stayed support device includes a traveling frame 1, on which a main cable traveling wheel axle 3 is provided. Multiple main cable traveling wheels 2 are spaced apart on the main cable traveling wheel axle 3. The main cable traveling wheels 2 are used to clamp the main cable below. Multiple wall plates 4 are also sleeved on the main cable traveling wheel axle 3. The lower ends of the multiple wall plates 4 are inserted into the hanger axle 7. Multiple sets of cable-passing wheel installation units of different heights are also sleeved on the hanger axle 7. Each set of cable-passing wheel installation units includes two adjacent hanging plates 8. The upper end of the hanging plates 8 is sleeved on the hanger axle 7. A cable-passing wheel axle 11 is connected between the lower ends of the two hanging plates 8 in each set of cable-passing wheel installation units. Cable-passing wheels 10 are sleeved on the cable-passing wheel axle 11. Cable-passing wheels 10 of different heights are used to support the traction cable and the lifting cable. The entire support device can arrange the main cable, traction cable and lifting cable in layers, solving the problem of rope tangling.

[0024] The traveling frame 1 is formed by welding two long horizontal beams 1-1 and two short horizontal beams 1-2 together to form a square frame structure. Inside the square frame structure, two intermediate horizontal beams 1-3 are symmetrically arranged in the middle. The two ends of the intermediate horizontal beams 1-3 are welded and fixed to the two long horizontal beams 1-1 respectively. Each intermediate horizontal beam 1-3 is connected to an adjacent short horizontal beam 1-2 by a long main cable traveling wheel axle 3-2. Two short main cable traveling wheel axles 3-1 are connected between the two intermediate horizontal beams 1-3. Multiple main cable traveling wheels 2 are sleeved on both the short main cable traveling wheel axles 3-1 and the long main cable traveling wheel axles 3-2 at intervals. By setting two intermediate horizontal beams 1-3 in the middle of the traveling frame 1, it is convenient to install two short main cable traveling wheel axles 3-1, so that two rows of main cable traveling wheels 2 are formed in the middle of the traveling frame 1. This makes the entire traveling frame 1 travel more smoothly and prevents the long horizontal beams 1-1 from deflecting up and down and contacting the main cable, which would cause wear on the main cable. Furthermore, by only setting two intermediate horizontal beams 1-1 in the middle, the weight increase of the entire traveling frame 1 is not too great, and it is also easy to install. Of course, two long main cable traveling wheel axles 3-2 can be set directly between the two short horizontal beams 1-2, or two long main cable traveling wheel axles 3-2 can be set between the intermediate horizontal beam 1-3 and the short horizontal beams 1-2, which also forms a structure of two rows of main cable traveling wheels 2. However, such a setting will increase the number of main cable traveling wheels 2 and long main cable traveling wheel axles 3-2, resulting in too much weight increase for the entire system and an increased workload for installation.

[0025] A bushing 9 is fitted between two adjacent main cable travel wheels 2 on the main cable travel wheel axle 3 and between the main cable travel wheel 2 and the wall panel 4. A bushing 9 is also fitted between the innermost main cable travel wheel 2 on the long main cable travel wheel axle 3-2 and the intermediate flat beam 1-3. The bushing 9 is used to limit the movement of the main cable travel wheel 2 and the wall panel 4.

[0026] Multiple wall panels 4 are symmetrically distributed on the left and right sides. A limiting wheel axle 6 connects two adjacent wall panels 4 on each side. A limiting wheel 5 is fitted onto the limiting wheel axle 6. The limiting wheel 5 is located directly below the main cable travel wheel 2. The limiting wheel 5 "locks" two of the main cables to the travel system, preventing the main cable travel wheel 2 from skipping and making the travel system more stable. The limiting wheel 5 can rotate to reduce friction with the main cables during travel. Bushings 9 are fitted onto the limiting wheel axle 6 between the limiting wheel 5 and the wall panel 4 on both sides. These bushings 9 are used to limit the movement of the limiting wheel 5.

[0027] The limiting wheel axle 6 is located between the two outermost wall panels 4. Each limiting wheel axle 6 has only one limiting wheel 5, which is located directly below the main cable traveling wheel 2 near the outermost end. The limiting wheel axle 6 and limiting wheel 5 are positioned on the outermost side primarily for ease of installation. A limiting wheel 5 is symmetrically arranged on both the left and right sides. Although this limiting wheel 5 can only limit the main cable in the main cable traveling wheel 2 directly above it, long-term use has shown that limiting one main cable on each side prevents the entire cable support device from skipping or shifting. It is not necessary to have a limiting wheel 5 under each main cable traveling wheel 2, thus reducing workload and the weight of the cable support device.

[0028] Bushings 9 are fitted between the wall panel 4 and the hanging plate 8 on the hanging bracket shaft 7, between the two hanging plates 8 in each set of cable pulley installation units, and between two adjacent wall panels 4. These bushings 9 serve to restrict the position of the wall panel 4 and the scraper 8.

[0029] A mounting plate positioning shaft 12 is inserted through the middle of each mounting plate 8, connecting all the mounting plates 8 together to prevent the mounting plates 8 from shifting forward or backward during the movement of the cable support device. When the cable support device moves, the wall panel 4 and the mounting plates 8 can rotate, eliminating the unbalanced horizontal force generated by the cable pulley 10 supporting the traction cable and lifting cable due to the weight difference between the traction cable and the main cable, thus preventing the traveling trolley from being subjected to bending and torsion in the vertical plane.

[0030] A bushing 9 is fitted between each adjacent wall panel 4 on the mounting plate positioning shaft 12, which serves to restrict the position of the wall panel 4.

[0031] The following explanation uses a suspension bridge as an example: This suspension bridge is a highway bridge with a main span of 1420m. The cable-stayed system is a double-tower, three-span arrangement with spans of 227m + 1420m + 485m. The maximum lifting weight sag-to-span ratio is 1 / 13.40 = 106m. There are two sets of main cables, with a center-to-center distance of 12m between them. Each set consists of 14 φ60 (×37S+IWR) steel wire ropes, each with a breaking strength of 2550kN. The cable crane has four overhead cranes, each equipped with one lifting cable, using φ28 (6×37S+FC) steel wire rope with 10 lines. Each set of main cables has one traction cable, using φ40 (6×37S+FC) steel wire rope with 4 lines. To ensure that the cable support device does not overturn during the transportation of beam segments and does not affect the safety of the cable crane system, the cable crane support device provided by this utility model is selected. The device has a simple structure, is easy to assemble and disassemble, and moves smoothly. It can separate the main cable, traction cable, and lifting cable into layers, and can move smoothly and steadily in the same direction as the trolley. It has a low failure rate, which greatly saves maintenance costs and time and is conducive to the smooth progress of hoisting work.

[0032] The cable-stayed support device of this utility model includes a walking frame 1 and a main cable walking wheel 2 forming a support device walking system, which is located above the main cable; a hanging plate 8 and a cable-passing wheel 10 forming a support device frame, on which the traction cable, lifting cable and river crossing cable are placed and supported by the cable-passing wheel 10.

[0033] The walking frame 1 is a frame welded together from a long horizontal beam 1-1, a short horizontal beam 1-2 and a middle horizontal beam 1-3.

[0034] The main cable travel wheel 2 is connected to the travel frame 1 by the main cable travel wheel axle 3. Nuts and cotter pins are provided at both ends of the main cable travel wheel axle 3.

[0035] A bushing 9 is provided between the main cable traveling wheels 2 and between the main cable traveling wheels 2 and the intermediate flat beams 1-3 of the traveling frame 1, which serves to limit the position of the main cable traveling wheels 2.

[0036] The walking system of the support cable device is connected to the hanger through the wall panel 4. The upper end of the wall panel 4 is provided with a mounting hole for the long main cable walking wheel axle 3-2 to pass through and install the main cable walking wheel 2. The middle part of the wall panel 4 is provided with a mounting hole for the limit wheel axle 6 to pass through and install the limit wheel 5. Its function is to limit and reduce friction, prevent the main cable walking wheel 2 from jumping, and make the walking system more stable. The lower end of the wall panel 4 is provided with a mounting hole for the hanger axle 7 to pass through and install the hanger plate 8.

[0037] Mounting holes are provided at the top, middle, and bottom of the hanging plate 8. The mounting hole at the top is used to install the hanging bracket shaft 7; the mounting hole in the middle is used to install the hanging plate positioning shaft 12, so that the hanging plate 8 will not be misaligned during the movement of the support cable device; the mounting hole at the bottom is used for the passing of the cable sheave shaft 11 to install the cable sheave 10. Some long hanging plates 8 are combined with adjacent short scrapers 8 on the left and right sides to form two cable sheave installation units. The bottom of the long hanging plate 8 is provided with two mounting holes at different heights, and the two mounting holes at the bottom are used for two cable sheave shafts 11 to pass through.

[0038] The hanger shaft 7 is provided with bushings 9, namely bushings 9 between wall panel 4 and hanging plate 8, bushings 9 between wall panels 4, and bushings 9 between hanging plates 8.

[0039] The main cable travel wheel 2 is a nylon wheel (D=220mm, t=90mm), with a 30210 intermediate bearing; the cable guide wheel 10 is a cast steel wheel (D=220mm, t=71mm), with a 30210 intermediate bearing; the hanging plate 8 is made of Q235B steel plate (t=8mm); the traveling frame 1 is made of Q235B channel steel (140×58×12mm); and the wall panel 4 is made of Q235B steel plate (t=12mm).

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable support device, characterized in that: It includes a walking frame (1), on which a main cable walking wheel axle (3) is provided. Multiple main cable walking wheels (2) are sleeved at intervals on the main cable walking wheel axle (3). Multiple wall panels (4) are also sleeved on the main cable walking wheel axle (3). The lower ends of the multiple wall panels (4) are inserted into a hanging frame axle (7). Multiple sets of cable wheel installation units of different heights are also sleeved on the hanging frame axle (7). Each set of cable wheel installation units includes two adjacent hanging plates (8). The upper end of the hanging plate (8) is sleeved on the hanging frame axle (7). The lower ends of the two hanging plates (8) of each set of cable wheel installation units are connected to a cable wheel axle (11). Cable wheels (10) are sleeved on the cable wheel axle (11).

2. The cable support device according to claim 1, characterized in that: The walking frame (1) is a square frame structure formed by two long horizontal beams (1-1) and two short horizontal beams (1-2) connected to each other. Two middle horizontal beams (1-3) are symmetrically arranged in the middle of the square frame structure. The two ends of the middle horizontal beams (1-3) are fixedly connected to the two long horizontal beams (1-1) respectively. A long main cable walking wheel axle (3-2) is connected between each middle horizontal beam (1-3) and the adjacent short horizontal beam (1-2). Two short main cable walking wheel axles (3-1) are connected between the two middle horizontal beams (1-3). Multiple main cable walking wheels (2) are sleeved at intervals on both the short main cable walking wheel axle (3-1) and the long main cable walking wheel axle (3-2).

3. The cable support device according to claim 2, characterized in that: Bushings (9) are fitted between two adjacent main cable travel wheels (2) on the main cable travel wheel axle (3) and between the main cable travel wheel (2) and the wall panel (4). Bushings (9) are also fitted between the innermost main cable travel wheel (2) on the long main cable travel wheel axle (3-2) and the middle flat beam (1-3).

4. The cable support device according to claim 1, characterized in that: The multiple wall panels (4) on the left and right sides are symmetrically distributed. A limit wheel axle (6) is connected between two adjacent wall panels (4) on each side. A limit wheel (5) is sleeved on the limit wheel axle (6). The limit wheel (5) is located directly below the main cable travel wheel (2). Bushings (9) are sleeved on the limit wheel axle (6) between the limit wheel (5) and the wall panel (4) on both sides.

5. A cable support device according to claim 4, characterized in that: The limiting wheel axle (6) is set between the two outer wall panels (4), and each limiting wheel axle (6) is equipped with only one limiting wheel (5). The limiting wheel (5) is located directly below the main cable traveling wheel (2) near the outer end.

6. A cable support device according to claim 1, characterized in that: Bushings (9) are fitted between the wall panel (4) and the hanging plate (8) on the hanging bracket shaft (7), between the two hanging plates (8) of each set of cable wheel installation units, and between two adjacent wall panels (4).

7. A cable support device according to claim 1, characterized in that: A mounting plate positioning shaft (12) is inserted into the middle of each mounting plate (8).

8. A cable support device according to claim 7, characterized in that: A bushing (9) is fitted between two adjacent wall panels (4) on the mounting plate positioning shaft (12).

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