Carriage structure for cable hoisting system

Abstract

The utility model discloses a sports car structure for a cable hoisting system. The sports car structure comprises a bearing assembly, a traction assembly and a hoisting assembly, the bearing assembly comprises a plurality of bearing plates arranged in parallel at intervals and bearing wheels rotationally connected to the upper ends of every two adjacent bearing plates. The traction assembly comprises a supporting plate and a traction wheel shaft, the supporting plate is hinged to the lower ends of the bearing plates, and the traction wheel shaft is rotationally connected to the bearing plates; the lifting assembly is hinged to the lower end of the supporting plate, and a lifting wheel shaft is rotationally connected to the lifting assembly. According to the utility model, the bearing wheel walks along the main cable, the traction cable penetrates through the traction wheel shaft to realize traction of walking of the sports car, and the hoisting cable penetrates through the hoisting wheel shaft to complete hoisting operation; the bearing wheels and the traction wheel shafts are equivalent to two layers of walking wheels, hoisting loads can be borne at the same time in the traction walking process, hoisting points are concentrated on the hoisting wheel shafts, the structure is more compact, the horizontal arrangement space is small, the safety coefficient in the hoisting process is effectively improved, and the hoisting risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically to a trolley structure for a cable-stayed hoisting system. Background Technology

[0002] With the rapid development of the national railway network, heavy-haul railways have increasingly greater crossing capabilities. When crossing major rivers and canyons, cable-stayed gantry cranes are often used without supports. This method is primarily applied to the installation of arch rib segments in arch bridges. Later, with the proliferation of long-span suspension bridges in my country, cable-stayed gantry cranes have been applied to the hoisting of stiffening girders in suspension bridges. After lifting a heavy load, a cable-stayed gantry crane can move the load along the entire span of the mid-span, with no restrictions on the lifting point location; lateral movement of the lifting point can be achieved via sliding beams. Its extremely fast erection speed and low cost have made it a feasible solution for the hoisting of long-span arch bridges, suspension bridges, and other bridge types.

[0003] Traditional cable crane trolley structures typically feature a single-layer load-bearing wheel arrangement. As lifting weight increases, the lifting capacity of the cable crane trolley is primarily increased through two methods: first, by increasing the diameter of the load-bearing cables and the size of the load-bearing wheels to enhance stress resistance; and second, by increasing the number of load-bearing cables and the number of load-bearing wheels to increase the trolley's load-bearing capacity. However, with the continuous increase in the number of load-bearing cables and load-bearing wheels, the space available for horizontally arranged single-layer load-bearing wheel cable crane trolley structures is becoming increasingly larger. This leads to two problems: first, the stress structure at individual lifting points becomes increasingly unreasonable, increasing the risk during lifting; and second, the use of cable cranes is limited when space is restricted.

[0004] Therefore, how to provide a sports car structure that is more compact, has less horizontal space, and has concentrated lifting points is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a trolley structure for a cable hoisting system, which aims to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A trolley structure for a cable-stayed hoisting system includes:

[0008] A load-bearing component, comprising multiple parallel and spaced load-bearing plates and load-bearing wheels rotatably connected to the upper ends of two opposing panels of two adjacent load-bearing plates;

[0009] A traction assembly, comprising a support plate and a traction wheel axle, wherein the support plate is a plurality of pieces and is hinged to the lower end of the plurality of load-bearing plates, and the traction wheel axle is rotatably connected to the plurality of load-bearing plates;

[0010] A lifting assembly is hinged to the lower end of the plurality of support plates, and a lifting wheel axle is rotatably connected to the lifting assembly.

[0011] The beneficial effects of this utility model are that the weighing wheel can roll along the main cable, the traction rope can pull the trolley structure to move after passing through the traction wheel axle, and the lifting cable passes through the lifting wheel axle for lifting operations; through this scheme, by sliding the load-bearing component and the traction component along the main cable and the traction cable respectively, the trolley structure actually provides two layers of wheels, the structure is more compact, the lifting points are concentrated on the lifting components, and the lifting risk is reduced.

[0012] Preferably, the circumferential surface of the load-bearing wheel has a groove, and the main cable passes through the groove and is located below the load-bearing wheel. The load-bearing wheel is located above the main cable, and the groove accommodates the main cable, allowing the load-bearing wheel to travel along the main cable.

[0013] Preferably, the system also includes a stop bar, which connects multiple load-bearing plates and is located below the main cable. The stop bar enhances the stability of the connection between the load-bearing plates and confines the main cable within the wheel groove, preventing derailment during empty travel and thus improving the safety factor of the cable hoisting system.

[0014] Preferably, a load-bearing shaft is bolted to the upper end of each of the multiple load-bearing plates, and multiple load-bearing wheels are rotatably connected to the load-bearing shaft and located between adjacent load-bearing plates; retaining rings are embedded between the two ends of each load-bearing wheel and the panel of the load-bearing plate. The retaining rings can prevent wear and tear on the load-bearing plates during frequent movement of the trolley, thereby improving the durability of the load-bearing plates during use.

[0015] Preferably, the lower ends of the multiple load-bearing plates are bolted to a connecting shaft; there are two support plates, each hinged to one end of the connecting shaft, and the panel of the support plate rotatably abuts against the panel of the load-bearing plate located at the end of the load-bearing assembly. The support plate and the load-bearing plate are connected by the connecting shaft.

[0016] Preferably, the lifting assembly includes two limiting plates; the lower ends of the two support plates are connected by a pin; the upper ends of the two limiting plates are sleeved on the pin, and their panels rotatably abut against the panels of the two support plates; the lifting wheel axle is rotatably connected to the lower ends of the two limiting plates. The support plates and limiting plates are connected by a pin.

[0017] Preferably, both the traction wheel axle and the lifting wheel axle include a wheel, a bearing, and a steel shaft. The outer circumference of the wheel has multiple spaced semi-circular grooves for threading traction cables or lifting cables. Both ends of the wheel are open. The outer ring of the bearing is embedded in the end of the wheel, and the steel shaft is located within the inner cavity of the wheel with both ends extending out of the bearing. The outer wall of the steel shaft end is embedded in the inner ring of the bearing, and both ends are respectively bolted to two support plates or two limiting plates. The semi-circular grooves on the outer circumference of the wheel act as a pulley system, and the bearing enables the wheel to rotate relative to the steel shaft.

[0018] Preferably, there are two traction wheel axles, which are arranged vertically and vertically along the support plate, and their two semi-circular grooves form a circular groove. The two traction wheel axles accommodate the traction rope through the circular groove, which can individually confine each traction rope within each circular groove, preventing the traction ropes from intertwining and affecting the traction of multiple vehicles.

[0019] Preferably, the sports car structure is provided in multiple sets; the middle of the load-bearing plate is rotatably connected to a traction wheel, and two adjacent sets of sports car structures are connected by a sports car connecting cable through two traction wheels to achieve synchronous movement of multiple sets of sports car structures.

[0020] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a trolley structure for a cable hoisting system. The load-bearing wheel travels along the main cable, and the traction cable is threaded on the traction wheel axle to achieve traction of the trolley. The lifting cable is threaded on the lifting wheel axle to complete the hoisting operation. The load-bearing wheel and the traction wheel axle are equivalent to two layers of traveling wheels, which can simultaneously bear the hoisting load during the traction travel process. The hoisting points are concentrated on the lifting wheel axle, the structure is more compact, the horizontal arrangement space is small, and the safety factor during the hoisting process is effectively improved, and the hoisting risk is reduced. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A front view of the sports car structure provided by this utility model;

[0023] Figure 2 A side sectional view of the sports car structure provided for this utility model;

[0024] Figure 3 This is a schematic diagram of the sports car structure in Embodiment 2 of this utility model;

[0025] Figure 4 A cross-sectional view of the shaft wheel provided for this utility model.

[0026] in,

[0027] 1-Load-bearing component; 11-Load-bearing plate; 12-Load-bearing wheel; 13-Traction wheel; 14-Retaining ring; 15-Stop lever; 16-Connecting shaft; 17-Load-bearing shaft;

[0028] 2-Traction assembly; 21-Support plate; 22-Traction wheel axle; 23-Pin axle;

[0029] 3-Lifting assembly; 31-Limiting plate; 32-Lifting wheel axle;

[0030] 4-Hanging rod;

[0031] 5-Shaft wheel; 51-Semi-circular groove; 6-Bearing; 7-Steel shaft;

[0032] 8- Sports car connecting cable. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1:

[0035] See appendix Figures 1-2 This utility model discloses a trolley structure for a cable hoisting system, comprising:

[0036] The load-bearing component 1 includes multiple load-bearing plates 11 arranged in parallel and spaced apart, and load-bearing wheels 12 rotatably connected to the upper ends of the two opposing panels of two adjacent load-bearing plates 11.

[0037] The traction assembly 2 includes a support plate 21 and a traction wheel axle 22. The support plate 21 consists of multiple pieces and is hinged to the lower end of multiple load-bearing plates 11. The traction wheel axle 22 is rotatably connected to the multiple load-bearing plates 11.

[0038] The lifting assembly 3 is hinged to the lower end of multiple support plates 21, and a lifting wheel axle 32 is rotatably connected to the lifting assembly 3.

[0039] To further optimize the above technical solution, the sports car structure is provided in multiple sets; the middle of the load-bearing plate 11 is rotatably connected to the traction wheel 13, and two adjacent sets of sports car structures are connected by the sports car connecting cable 8 to achieve synchronous movement of multiple sets of sports car structures.

[0040] like Figure 1 As shown, the sports car structure has four sets arranged in an array, and the four sets of sports car mechanisms are connected to each other by sports car connecting cables; the bottom of the lifting wheel axle can be connected to the gantry by a steel wire rope, and the gantry can be used to lift heavy objects.

[0041] In this embodiment, the circumferential surface of the load-bearing wheel 12 is provided with a groove, and the main cable passes through the groove and is located below the load-bearing wheel 12.

[0042] like Figure 1 and 2 As shown, the main cable, threaded on the load-bearing wheel, primarily bears the lifting load. The traction cable, threaded on the traction wheel axle, serves two purposes: traction of the trolley and bearing part of the lifting load. The lifting cable, threaded on the lifting wheel axle, is used for lifting operations, with the lifting points concentrated at the axle. In this embodiment, the load-bearing wheel and traction wheel axle are equivalent to two layers of load-bearing measures. As the lifting weight increases, there is no need to increase the load-bearing capacity of the trolley by increasing the diameter of the load-bearing cable or the size of the load-bearing wheel, or by increasing the number of load-bearing cables and load-bearing wheels. The structure is more compact, occupies less horizontal space, and the concentrated lifting points ensure lifting safety and reduce lifting risks.

[0043] To further optimize the above technical solution, improve the firmness of the connection between multiple load-bearing plates, and prevent cable derailment accidents during empty operation, a stop bar 15 is also included. The stop bar 15 connects multiple load-bearing plates 11 and is located below the main cable.

[0044] To further optimize the above technical solution and prevent wear on the load-bearing plates caused by the frequent movement of the sports car structure along the main cable, thereby reducing its load-bearing capacity, load-bearing shafts 17 are bolted to the upper ends of multiple load-bearing plates 11, and multiple load-bearing wheels 12 are rotatably connected to the load-bearing shafts 17 and located between two adjacent load-bearing plates 11; retaining rings 14 are embedded between the two ends of the load-bearing wheels 12 and the panel of the load-bearing plate 11.

[0045] like Figure 2 As shown, multiple load-bearing plates have through holes at their upper ends, and a load-bearing shaft passes through these through holes to connect the multiple load-bearing plates. At the same time, the lower ends of the multiple load-bearing plates are connected by a stop bar, which is arranged vertically to the load-bearing shaft. A ball bearing is embedded in the load-bearing shaft, and the inner ring of the ball bearing is fitted with the outer wall of the load-bearing shaft. The rotation of the load-bearing wheel relative to the load-bearing shaft is achieved through the ball bearing. The rolling of the load-bearing wheel enables the trolley structure to travel along the main cable. The stop ring can prevent the load-bearing wheel from wearing down the side wall of the load-bearing plate, thus ensuring the load-bearing capacity of the load-bearing plate.

[0046] In this embodiment, the lower ends of multiple load-bearing plates 11 are bolted with connecting shafts 16; there are two support plates 21, which are respectively hinged to both ends of the connecting shafts 16, and the panel of the support plate 21 rotates and abuts against the panel of the load-bearing plate 11 located at the end of the load-bearing component 1.

[0047] The load-bearing plate and the support plate are arranged in parallel. The support plate abuts against the outermost weighing plate and is connected by a connecting shaft. The end of the connecting shaft is locked with a nut. Adjusting the tightness of the nut allows the support plate to rotate relative to the load-bearing plate.

[0048] In this embodiment, the lifting assembly 3 includes two limiting plates 31; the lower ends of the two support plates 21 are connected by a pin 23; the upper ends of the two limiting plates 31 are sleeved on the pin 23 and their panels correspond to the panels of the two support plates 21 and rotate to abut against each other; the lifting wheel axle 32 is rotatably connected to the lower ends of the two limiting plates 31.

[0049] The connection method between the limiting plate and the support plate is the same as that between the support plate and the load-bearing plate. The pin and the connecting shaft have the same function, which will not be described in detail here.

[0050] In some other specific embodiments, both the traction wheel axle 22 and the lifting wheel axle 32 include a wheel 5, a bearing 6, and a steel shaft 7; the outer periphery of the wheel 5 is provided with a plurality of spaced semi-circular grooves 51 for passing through the traction cable or lifting cable; the two ends of the wheel 5 are through; the outer ring of the bearing 6 is embedded in the end of the wheel 5, and the steel shaft 7 is located in the inner cavity of the wheel 5 with its two ends extending out of the bearing 6 respectively; the outer wall of the end of the steel shaft 7 is embedded in the inner ring of the bearing 6, and its two ends are respectively bolted to two support plates 21 or two limiting plates 31.

[0051] like Figure 4 As shown, the axle is made of nylon rod by turning, which can ensure effective connection with the axle. Through multiple semi-circular grooves at intervals, a single wheel axle can function as a pulley system, reducing construction costs.

[0052] To further optimize the above technical solution and prevent the traction cables from twisting together during traction, two traction wheel axles 22 are provided. The two traction wheel axles 22 are arranged vertically and vertically along the support plate 21, and their two semi-circular grooves 51 are opposite each other to form a circular groove. The circular groove restricts the position of the traction rope, preventing relative movement and ensuring effective traction of the trolley structure.

[0053] Example 2:

[0054] like Figure 3 As shown, this embodiment discloses a trolley structure for a cable hoisting system, which differs from Embodiment 1 in that a boom 4 is used instead of the hoisting assembly 3.

[0055] The lower end of the boom 4 is hinged to the support plate 21. The boom 4 is hollow inside so that lifting cables can be threaded through it. The boom is used as a lifting frame for lifting operations.

[0056] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0057] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A trolley structure for a cable-stayed hoisting system, characterized in that, include: The load-bearing component (1) includes multiple load-bearing plates (11) arranged in parallel and spaced apart, and load-bearing wheels (12) rotatably connected to the upper ends of the two opposing panels of two adjacent load-bearing plates (11). The traction assembly (2) includes a support plate (21) and a traction wheel axle (22). The support plate (21) consists of multiple pieces and is hinged to the lower ends of the multiple load-bearing plates (11). The traction wheel axle (22) is rotatably connected to the multiple load-bearing plates (11). A lifting assembly (3) is hinged to the lower end of multiple support plates (21), and a lifting wheel axle (32) is rotatably connected to the lifting assembly (3).

2. The trolley structure for a cable-stayed hoisting system according to claim 1, characterized in that, The circumferential surface of the load-bearing wheel (12) is provided with a groove, and the main cable passes through the groove and is located below the load-bearing wheel (12).

3. The trolley structure for a cable-stayed hoisting system according to claim 2, characterized in that, It also includes a stop bar (15) that passes through multiple load-bearing plates (11) and is located below the main cable.

4. The trolley structure for a cable-stayed hoisting system according to claim 2, characterized in that, A load-bearing shaft (17) is bolted to the upper end of multiple load-bearing plates (11), and multiple load-bearing wheels (12) are rotatably connected to the load-bearing shaft (17) and located between two adjacent load-bearing plates (11); retaining rings (14) are embedded between the two ends of the load-bearing wheels (12) and the panel of the load-bearing plate (11).

5. The trolley structure for a cable-stayed hoisting system according to claim 1, characterized in that, The lower ends of the multiple load-bearing plates (11) are bolted with connecting shafts (16); there are two support plates (21) and they are respectively hinged to the two ends of the connecting shafts (16). The panel of the support plate (21) rotates and abuts against the panel of the load-bearing plate (11) located at the end of the load-bearing component (1).

6. The trolley structure for a cable-stayed hoisting system according to claim 5, characterized in that, The lifting assembly (3) includes two limiting plates (31); the lower ends of the two support plates (21) are connected by a pin (23); the upper ends of the two limiting plates (31) are sleeved on the pin (23) and their panels correspond one-to-one with the panels of the two support plates (21) for rotational contact; the lifting wheel axle (32) is rotatably connected to the lower ends of the two limiting plates (31).

7. A trolley structure for a cable-stayed hoisting system according to claim 6, characterized in that, Both the traction wheel axle (22) and the lifting wheel axle (32) include a wheel (5), a bearing (6) and a steel shaft (7); the outer circumference of the wheel (5) is provided with a plurality of spaced semi-circular grooves (51) for passing through the traction cable or lifting cable; the two ends of the wheel (5) are through; the outer ring of the bearing (6) is embedded in the end of the wheel (5), and the steel shaft (7) is located in the inner cavity of the wheel (5) with its two ends extending out of the bearing (6); the outer wall of the end of the steel shaft (7) is embedded in the inner ring of the bearing (6), and its two ends are respectively bolted to the two support plates (21) or the two limiting plates (31).

8. The trolley structure for a cable-stayed hoisting system according to claim 7, characterized in that, There are two traction wheel shafts (22), which are arranged vertically along the support plate (21) and their two semi-circular grooves (51) form a circular groove.

9. A trolley structure for a cable-stayed hoisting system according to any one of claims 1 to 8, characterized in that, The sports car structure is provided in multiple sets; the middle of the load-bearing plate (11) is rotatably connected to the traction wheel (13), and two adjacent sets of sports car structures are connected by a sports car connecting cable (8) to the two traction wheels (13) to achieve synchronous movement of multiple sets of sports car structures.

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