A four-cable freight ropeway system with a lever-type self-balancing device

Abstract

The present invention provides a four-cable freight ropeway system with a lever-type self-balancing device, comprising: an anchor (1), a support assembly, a lever-type tension automatic balancing device (2), and a load-carrying cable (6); one end of the load-carrying cable (6) is fixed to the ground through the anchor (1), and the other end passes through the lever-type tension automatic balancing device (2) and the support assembly and is then fixed to the ground through the anchor (1), and a four-cable trolley (5) is suspended on the load-carrying cable (6). The four-cable freight ropeway system provided by the present invention can realize real-time dynamic adjustment of the lengths of the load-carrying cables, improve the safety of the ropeway, and greatly improve the designed load-carrying capacity of the ropeway.

Description

Technical Field

[0001] The present invention relates to the field of transmission line engineering, and particularly to a four-cable freight ropeway system with a lever-type self-balancing device. Background Art

[0002] Overhead freight ropeways have the advantages of strong terrain adaptability, large climbing ability, strong transportation capacity, low dependence on the environment, and can cross complex terrain obstacles such as high mountains and deep valleys, and are widely used in engineering construction.

[0003] The transportation capacity of a freight ropeway mainly depends on the load-bearing capacity of the load-bearing cable. A large-section steel wire rope has a greater load-bearing capacity, but its procurement cost is high, its weight is large, and it is difficult to erect and lay, and it is not suitable for complex terrain environments such as high mountains and dense vegetation. Therefore, heavy-duty freight ropeways usually use multiple (2 or 4) small-sized steel wire ropes instead of a single large-sized steel wire rope as the load-bearing cable to share the weight of the goods and achieve the transportation of heavy goods.

[0004] A four-cable freight ropeway uses 4 steel wire ropes arranged in parallel as the load-bearing cable. This erection method has high requirements for the initial adjustment after the ropeway is erected. It is necessary to adjust the sag (length) of the 4 load-bearing cables to be basically the same at the same time to ensure that the running trolley runs balanced on the 4 load-bearing cables. When the lengths differ greatly, one of the steel wire ropes will be under excessive tension during transportation, which is extremely likely to cause the steel wire rope to break and result in safety accidents.

[0005] In addition, during the transportation process, due to the uneven structural elongation between the steel wire ropes, a sag difference will occur between the load-bearing cables, resulting in the deviation of the running trolley. And the existing four-cable ropeway cannot adjust the sag of the load-bearing cable in real time during the trolley running process and change the tension situation in time, and is also prone to safety accidents such as "bucket dropping". Summary of the Invention

[0006] In order to improve the safety of the ropeway and increase the designed load-bearing capacity of the ropeway, the present invention provides a four-cable freight ropeway system with a lever-type self-balancing device. The system uses load-bearing cables to connect the lever-type self-balancing device to build a four-cable freight ropeway. When the four load-bearing cables are under unbalanced forces, the system can perform real-time adjustment through the lever-type tension automatic balancing device, improve the stability of the ropeway operation, reduce the adjustment difficulty during the construction process, and improve the construction safety and efficiency.

[0007] The technical solution provided by the present invention is as follows:

[0008] A four-cable freight ropeway system with a lever-type self-balancing device, the four-cable freight ropeway system includes an anchor (1), a support assembly, a lever-type tension automatic balancing device (2), and a load-bearing cable (6);

[0009] The lever - type tension automatic balancing device (2) is fixed to the ground through a ground anchor (1);

[0010] One end of the load - bearing cable (6) is fixed to the ground through a ground anchor (1), and the other end passes through the lever - type tension automatic balancing device (2) and is then fixed to the ground through a ground anchor (1);

[0011] The four - cable trolley (5) is suspended on the load - bearing cable (6).

[0012] Preferably, the lever - type tension automatic balancing device (2) includes an anchoring device (12), a limiting device (13), a lever - type cross - beam (14), a pulley support (15), a leg (16), and a rope - spacing control pulley (17); the lever - type tension automatic balancing device (2) is connected to the ground anchor (1) through the anchoring device (12);

[0013] The anchoring device (12) is provided with two bolt holes and is connected to the pulley support (15) by bolts; both ends of the cross - beam of the anchoring device (12) are connected and anchored to the ground anchor (1);

[0014] The pulley support (15) includes a hollow - groove - type one - character vertical beam and a hollow - groove - type triangular support connected to one end of the vertical beam; the limiting device (13) of the lever - type cross - beam (14) is installed on both sides of the upper part of the vertical beam; a shaft hole is provided in the middle of the vertical beam for installing the lever - type cross - beam (14); a row of shaft holes is provided along the lower edge of the triangular support for installing the rope - spacing control pulley (17);

[0015] Both ends of the lever - type cross - beam (14) have a hole for winding the steel wire rope of the load - bearing cable (6); when the lever - type cross - beam (14) rotates to the set limit value, it contacts the limiting device (13), which serves to limit the rotation of the lever - type cross - beam (14);

[0016] The distance between the two pulley shafts of the rope - spacing control pulley (17) is adjusted on the lower edge of the triangle of the pulley support (15) to control the distance between the load - bearing cables (6);

[0017] The upper part of the leg (16) is fixedly connected to the lower edge of the triangle of the pulley support (15), and a disc is provided at the bottom of the leg (16). The leg (16) rotates around the connection of the lower edge of the triangle of the pulley support (15) to adjust the inclination angle of the support and reduce the force on the lever - type tension automatic balancing device (2) caused by angle changes.

[0018] Preferably, the support assembly includes a support cross beam (25) and support legs (26); the support legs (26) are in the form of lattice legs; a roller type four-cable saddle (3) and a return empty saddle (10) are arranged on the support assembly; the number of the support assemblies is two, and they are arranged between multiple ground anchors (1).

[0019] Furthermore, the number of the lever type tension automatic balancing devices (2) is three; the three lever type tension automatic balancing devices (2) are arranged between the ground anchor (1) and the support assembly;

[0020] The load-carrying cable (6) is composed of four separate steel wires. One end of one of the steel wires is fixed to the ground through the first ground anchor (1), and the other end passes through the roller type four-cable saddle (3) on the middle support assembly and then is connected to one end of the lever cross beam (14) through the rope spacing control pulley (17) on one side of the first lever type tension automatic balancing device (2); one end of the second steel wire is connected to the other end of the lever cross beam (14) of the first lever type tension automatic balancing device (2), and the other end of the steel wire turns back and passes through the rope spacing control pulley (17) on the other side of the first lever type tension automatic balancing device (2) and the roller type four-cable saddle (3) on the middle support assembly, and then is connected to one end of the lever cross beam (14) of the second lever type tension automatic balancing device (2) through the rope spacing control pulley (17) on one side of the second lever type tension automatic balancing device (2); one end of the third steel wire is connected to the other end of the lever cross beam (14) of the second lever type tension automatic balancing device (2), and the other end of the steel wire turns back and passes through the rope spacing control pulley (17) on the other side of the second lever type tension automatic balancing device (2) and the roller type four-cable saddle (3) on the middle support assembly, and then is connected to one end of the lever cross beam (14) of the third lever type tension automatic balancing device (2) through the rope spacing control pulley (17) on one side of the third lever type tension automatic balancing device (2); one end of the last steel wire is connected to the other end of the lever cross beam (14) of the third lever type tension automatic balancing device (2), and the other end of the steel wire turns back and passes through the rope spacing control pulley (17) on the other side of the third lever type tension automatic balancing device (2) and the roller type four-cable saddle (3) on the middle support assembly, and then is fixed to the ground through the second ground anchor (1).

[0021] Furthermore, the load-carrying cable (6) achieves automatic tension balance of the four load-carrying cables through the lever cross beams (14) of the three lever type tension automatic balancing devices (2); the load-carrying cable (6) slides freely on the roller type four-cable saddle (3).

[0022] Furthermore, the return empty saddle (10) is installed on the support cross beam (24) and is used to support the return empty cable (11) with both ends connected to the ground anchor (1).

[0023] Furthermore, the four-cable freight cableway system further includes: a traction assembly; the traction assembly includes a cableway traction device (9), a traction cable (7), and four high-speed steering pulleys (8).

[0024] Furthermore, the high-speed steering pulley (8) includes a pulley (27), a pulley frame (28), and a pull ring (29);

[0025] The pulley (27) is connected to the pulley frame (28) through an axial hole, and the traction cable (7) turns around the pulley (27); the pull ring (29) is fixedly connected to the ground anchor (1).

[0026] Furthermore, the four-cable freight cableway system further includes: a roller-type four-cable saddle (3);

[0027] The roller-type four-cable saddle (3) includes a saddle frame (18), a roller saddle (19), and a cable supporting wheel (20);

[0028] The saddle frame (18) includes four columns. The columns are provided with axial holes for installing the roller saddle (19) and the cable supporting wheel (20), and are connected by telescopic cross beams in pairs. The lower part of the middle column is connected to the cable supporting wheel (20) through an axial hole for supporting the traction cable (7); the columns are fixedly connected to the support cross beam (25) through the upper support plates; the roller saddle (19) and the saddle frame (18) are connected by an axis to form the roller-type four-cable saddle (3);

[0029] The roller saddle (19) includes two symmetrically arranged saddle support plates (19-1) on the left and right and a row of rollers (19-2). The saddle support plates (19-1) are uniformly distributed with a preset number of axial holes along the curvature for installing the rollers (19-2); the load-bearing cable (6) rotates freely along the saddle support plates (19-1) through the rollers (19-2).

[0030] Furthermore,

[0031] The four-cable trolley (5) includes a trolley frame (21), a cable gripper (22), and traveling wheels (23), and a load-carrying hole (24) at the lower end of the frame;

[0032] The four-cable trolley (5) is hung on the load-bearing cable (6) through the traveling wheels (23). The cable gripper (22) is a clamping plate (22-2) with a rope groove, and clamps the traction cable in the rope groove through a bolt (22-1);

[0033] The traction assembly drives the four-cable trolley (5) to slide on the load-bearing cable (6) through the traction cable (7) and move back and forth between the support assemblies.

[0034] Furthermore, the trolley frame (21) is of a U-shaped structure. Axle holes connected to the traveling wheels (23) are provided at both ends of the U-shape. A cable gripper (22) is provided at the upper edge of the bottom of the U-shape, and a load hole (24) is provided at the lower edge of the bottom of the U-shape.

[0035] The traveling wheel (23) is composed of two wheels (23-1), an axle hole (23-2), a lateral support plate (23-3) and a wheel frame (23-4); every two traveling wheels (23) are connected to both ends of the U-shape of the trolley frame (21) through the axle hole (23-2); the lateral support plate (23-3) plays a guiding role when the traveling wheel passes through the saddle; the wheel frame (23-4) rotates around the axis connected to the trolley frame (21) during the traveling process.

[0036] Preferably, the ground anchor (1) adopts a directly buried steel plate ground anchor or a cast-in-place anchor pile.

[0037] Furthermore, the load-carrying cable (6) and the return cable (11) are steel wire ropes; the towing cable is a closed steel wire rope (7).

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] The present invention provides a four-cable freight ropeway system with a lever-type self-balancing device. The system includes a ground anchor (1), a support assembly, a lever-type tension automatic balancing device (2) and a load-carrying cable (6); the lever-type tension automatic balancing device (2) is fixed to the ground through the ground anchor (1); one end of the load-carrying cable (6) is fixed to the ground through the ground anchor (1), and the other end passes through the lever-type tension automatic balancing device (2) and the support assembly and is fixed to the ground through the ground anchor (1); the four-cable trolley (5) is suspended on the load-carrying cable (6). This patent builds a freight ropeway through a lever-type tension automatic balancing device and uses the lever beam of the automatic balancing device to realize the automatic tension balance of the load-carrying cable.

[0040] When the four load-carrying cables in the technical solution provided by the present invention are stressed unevenly, the system can be adjusted in real time through the lever-type tension automatic balancing device. At the same time, the load-carrying cable saddle adopts a roller saddle, which greatly reduces the sliding resistance of the load-carrying cable.

[0041] The technical solution provided by the present invention improves the running stability of the four-cable trolley on the load-carrying cable, reduces the adjustment difficulty during the construction process, can effectively avoid the risk of steel wire rope breakage during transportation, and improves the construction safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is an overall structure diagram of a four-cable freight ropeway system with a lever-type self-balancing device of the present invention;

[0043] Among them, 1: ground anchor; 2: lever-type tension automatic balancing device; 3: roller-type four-cable saddle; 4: support assembly; 5: four-cable trolley; 6: load-bearing cable; 7: towing cable; 8: high-speed steering pulley; 9: cableway towing device drum; 10: return empty saddle; 11: return empty cable;

[0044] Figure 2 Schematic diagram of a four-cable freight cableway with a lever-type self-balancing device of the present invention;

[0045] Among them, 1: ground anchor; 2: lever-type tension automatic balancing device; 3: roller-type four-cable saddle; 4: support assembly; 5: four-cable trolley; 6: load-bearing cable; 7: towing cable; 10: return empty saddle; 11: return empty cable;

[0046] Figure 3 Schematic diagram of the lever-type tension automatic balancing device of the embodiment of the present invention;

[0047] Among them, 12: anchoring device; 13: limiting device; 14: lever-type cross beam; 15: pulley bracket; 16: leg; 17: rope spacing control pulley;

[0048] Figure 4 Schematic diagram of the roller-type four-cable saddle of the embodiment of the present invention;

[0049] Among them, 18: saddle frame; 19: roller saddle; 20: cable supporting wheel;

[0050] Figure 5 Schematic diagram of the roller saddle of the embodiment of the present invention;

[0051] Among them, 19-1: saddle support plate; 19-2: roller;

[0052] Figure 6 Schematic diagram of the four-cable trolley of the embodiment of the present invention;

[0053] Among them, 21: trolley frame; 22: cable gripper; 22-1: bolt; 22-2: clamping plate; 23: running wheel; 24: load hole;

[0054] Figure 7 Schematic diagram of the running wheel of the four-cable trolley of the embodiment of the present invention;

[0055] Among them, 23-1: wheel; 23-2: shaft hole; 23-3: lateral support plate; 23-4: wheel frame;

[0056] Figure 8 Schematic diagram of the support assembly of the embodiment of the present invention;

[0057] Among them, 25: support cross beam; 26: support leg;

[0058] Figure 9 Schematic diagram of a high-speed steering trolley according to an embodiment of the present invention;

[0059] Among them, 27: pulley; 28: pulley frame; 29: pull ring. Specific embodiments

[0060] To better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings of the specification and examples. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0061] The four-cable freight ropeway system with a lever-type self-balancing device provided by the present invention relates to the field of transmission line engineering. Taking a certain UHV DC line project as an example, when the single-piece weight of the materials transported in the project is relatively large, a four-cable freight ropeway can be used for transportation construction. The traditional erection method of a four-cable ropeway is to anchor the 4 load-bearing cable steel wires to the ground anchors at the beginning and end of the ropeway respectively. When adjusting the initial sag of the load-bearing cables, at least 3 of the load-bearing cables need to be adjusted, resulting in great difficulty in balancing adjustment of the four-cable ropeway. At the same time, dynamic balance adjustment cannot be performed during the operation of the trolley. The four-cable freight ropeway system with a lever-type self-balancing device proposed in this patent uses a lever-type tension automatic balancing device to construct a four-cable freight ropeway system. The 4 load-bearing cables can achieve tension balance adjustment through the lever-type tension automatic balancing device, greatly reducing the workload and difficulty of adjusting the load-bearing cables of the ropeway. At the same time, dynamic tension balance adjustment can also be achieved during the operation of the trolley, which is flexible and easy to use, and improves the operation stability of the four-cable freight ropeway.

[0062] Embodiment 1:

[0063] The four-cable freight ropeway system with a lever-type self-balancing device provided by the embodiment of the present invention has an overall structure as Figure 1 shown, including a ground anchor 1, a support assembly, a lever-type tension automatic balancing device 2, and a load-bearing cable 6;

[0064] The lever-type tension automatic balancing device 2 is fixed to the ground through the ground anchor 1;

[0065] One end of the load-bearing cable 6 is fixed to the ground through the ground anchor 1, and the other end passes through the lever-type tension automatic balancing device 2 and is fixed to the ground through the ground anchor 1;

[0066] The four-cable trolley 5 is suspended on the load-bearing cable 6.

[0067] As Figure 3As shown in the figure, the lever - type tension automatic balancing device 2 includes an anchoring device 12, a limiting device 13, a lever - type cross - beam 14, a pulley support 15, a leg 16, and a rope - spacing control pulley 17; the lever - type tension automatic balancing device 2 is connected to the ground anchor 1 through the anchoring device 12;

[0068] Among them:

[0069] The anchoring device 12 is provided with two bolt holes and is connected to the pulley support 15 by bolts; both ends of the cross - beam of the anchoring device 12 are connected and anchored to the ground anchor 1;

[0070] The pulley support 15 includes a hollow - groove - type one - shaped vertical beam and a hollow - groove - type triangular support connected to one end of the vertical beam; the limiting devices 13 of the lever - type cross - beam 14 are installed on both sides of the upper part of the vertical beam; a shaft hole is provided in the middle of the vertical beam for installing the lever - type cross - beam 14; a row of shaft holes is provided along the lower edge of the triangular support for installing the rope - spacing control pulley 17;

[0071] Both ends of the lever - type cross - beam 14 each have a hole for threading the steel wire rope of the load - bearing cable 6; when the lever - type cross - beam 14 rotates to the set limit value, it contacts the limiting device 13, which plays a role in limiting the rotation of the lever - type cross - beam 14;

[0072] The distance between the two pulley shafts of the rope - spacing control pulley 17 is adjusted on the lower edge of the triangle of the pulley support 15 to control the distance between the load - bearing cables 6;

[0073] The upper part of the leg 16 is fixedly connected to the lower edge of the triangle of the pulley support 15, and a disc is provided at the bottom of the leg 16. The leg 16 rotates around the connection at the lower edge of the triangle of the pulley support 15 to adjust the inclination angle of the support and reduce the force received due to the angle change of the lever - type tension automatic balancing device 2.

[0074] As Figure 8 shown in the figure, the support assembly includes a support cross - beam 25 and support legs 26; the support legs 26 adopt a lattice - type leg form; the cross - beam structure form is determined according to the design load of the cableway and its stress conditions. Commonly used ones are I - beams and steel - pipe cross - beams;

[0075] A roller - type four - cable saddle 3 and a return - empty saddle 10 are arranged on the support assembly;

[0076] The number of support assemblies is two, which are arranged between multiple ground anchors 1.

[0077] The number of lever - type tension automatic balancing devices 2 is three; the three lever - type tension automatic balancing devices 2 are arranged between the ground anchor 1 and the support assembly;

[0078] The load-carrying cable 6 is composed of four separate steel wire ropes. One end of one of the ropes is fixed to the ground through the first ground anchor 1, and the other end passes through the roller-type four-cable saddle 3 on the intermediate support assembly and then is connected to one end of the lever-type crossbeam 14 of the first lever-type tension automatic balancing device 2 through the rope spacing control pulley 17 on one side of the first lever-type tension automatic balancing device 2. One end of the second steel wire rope is connected to the other end of the lever-type crossbeam 14 of the first lever-type tension automatic balancing device 2. The other end of the steel wire rope turns back and passes through the rope spacing control pulley 17 on the other side of the first lever-type tension automatic balancing device 2 and the roller-type four-cable saddle 3 on the intermediate support assembly, and then is connected to one end of the lever-type crossbeam 14 of the second lever-type tension automatic balancing device 2 through the rope spacing control pulley 17 on one side of the second lever-type tension automatic balancing device 2. One end of the third steel wire rope is connected to the other end of the lever-type crossbeam 14 of the second lever-type tension automatic balancing device 2. The other end of the steel wire rope turns back and passes through the rope spacing control pulley 17 on the other side of the second lever-type tension automatic balancing device 2 and the roller-type four-cable saddle 3 on the intermediate support assembly, and then is connected to one end of the lever-type crossbeam 14 of the third lever-type tension automatic balancing device 2 through the rope spacing control pulley 17 on one side of the third lever-type tension automatic balancing device 2. One end of the last steel wire rope is connected to the other end of the lever-type crossbeam 14 of the third lever-type tension automatic balancing device 2. The other end of the steel wire rope turns back and passes through the rope spacing control pulley 17 on the other side of the third lever-type tension automatic balancing device 2 and the roller-type four-cable saddle 3 on the intermediate support assembly, and then is fixed to the ground through the second ground anchor 1.

[0079] The load-carrying cable 6 achieves automatic tension balance of the four load-carrying cables through the lever-type crossbeams 14 of the three lever-type tension automatic balancing devices 2; the load-carrying cable 6 slides freely on the roller-type four-cable saddle 3.

[0080] Among them: The empty-return saddle 10 is installed on the support crossbeam 25 and is used to support the empty-return cable 11 with both ends connected to the ground anchor 1.

[0081] The four-cable freight cableway system further includes: a traction assembly;

[0082] The traction assembly includes a cableway traction device 9, a traction cable 7, and four high-speed turning pulleys 8; the traction assembly adopts a special traction device required for the special freight cableway for transmission line construction.

[0083] The traction cable 7 is wound out from the drum of the cableway traction device 9, turns after passing around the first high-speed turning pulley 8, passes through the cable supporting pulleys 20 of the roller-type four-cable saddles 3 on the two support assemblies, turns twice after passing around the second high-speed turning pulley 8 and the third high-speed turning pulley 8, passes through the cable supporting pulleys of the empty-return saddles 11 on the two support assemblies, turns after passing around the fourth high-speed turning pulley 8, and finally returns to the drum of the cableway traction device 9 to form a closed loop.

[0084] Among them: The structure of the high-speed turning pulley 8 is asFigure 9 As shown in the figure, it includes a pulley 27, a pulley bracket 28 and a pull ring 29; the pulley 27 is connected to the pulley bracket 28 through a shaft hole, and the towing cable 7 turns around the pulley 27; the pull ring 29 is fixedly connected to the ground anchor 1.

[0085] The four-cable freight ropeway system further includes: a roller-type four-cable saddle 3, the structure of which is as Figure 4 shown;

[0086] The roller-type four-cable saddle 3 includes a saddle frame 18, a roller saddle 19 and a cable supporting wheel 20;

[0087] Among them: the saddle frame 18 includes four columns, the columns are provided with shaft holes for installing the roller saddle 19 and the cable supporting wheel 20, and are connected pairwise through telescopic cross beams. The lower part of the middle column is connected to the cable supporting wheel 20 through a shaft hole for supporting the towing cable 7; the columns are fixedly connected to the support cross beam 25 through the upper support plate; the roller saddle 19 and the saddle frame 18 are connected by a shaft to form the roller-type four-cable saddle 3;

[0088] The structure of the roller saddle 19 is as Figure 5 shown, including two symmetrically arranged saddle support plates 19-1 on the left and right and a row of rollers 19-2. The saddle support plates 19-1 are provided with a preset number of shaft holes evenly distributed along the curvature for installing the rollers 19-2; the load-bearing cable 6 rotates freely along the saddle support plates 19-1 through the rollers 19-2.

[0089] The structure of the four-cable trolley 5 is as Figure 6 shown, including a trolley frame 21, a cable gripper 22 and four running wheels 23, and a load-carrying hole 24 at the lower end of the frame;

[0090] The four-cable trolley 5 is hung on the load-bearing cable 6 through the running wheels 23. The cable gripper 22 is a splint 22-2 with a rope groove, and the towing cable 7 is clamped by bolts 22-1;

[0091] The traction assembly drives the four-cable trolley 5 to slide on the load-bearing cable 6 through the towing cable 7 and move back and forth between the support assemblies to realize the movement of freight transportation.

[0092] Among them:

[0093] The trolley frame 21 has a U-shaped structure. The two ends of the U-shaped structure are provided with shaft holes connected to the running wheels 23. The upper edge of the bottom of the U-shaped structure is provided with the cable gripper 22, and the lower edge of the bottom of the U-shaped structure is provided with the load-carrying hole 24;

[0094] The structure of the running wheel 23 is as Figure 7As shown in the figure, it is composed of two wheels 23-1, shaft holes 23-2, lateral support plates 23-3 and wheel frames 253-4; the walking wheels are a double-wheel combination, and the wheels are provided with wheel grooves to match the load-bearing cables. At the same time, the double wheels can improve the load-bearing capacity of the trolley; every two walking wheels 23 are connected to the U-shaped ends of the trolley frame 21 through the shaft holes 23-2; the lateral support plates 23-3 play a guiding role when the walking wheels pass through the saddle; the wheel frames 23-4 rotate around the shaft connected to the trolley frame 21 during the traveling process.

[0095] The ground anchor 1 in the four-cable freight ropeway system adopts a directly buried steel plate ground anchor or a cast-in-place anchor pile.

[0096] In the four-cable freight ropeway system, the load-bearing cable 6 is a steel wire rope, which bears the main loads of the ropeway, namely the four-cable trolley and the loaded goods; the return cable 11 is a steel wire rope, which undertakes the return transportation of the four-cable trolley; the traction cable 7 is a closed steel wire rope, which drives the four-cable trolley to move forward along the load-bearing cable.

[0097] Embodiment 2:

[0098] As Figure 1 and Figure 2 shown, the four-cable freight ropeway with a lever-type self-balancing device provided by the embodiment of the present invention includes components such as a lever-type tension automatic balancing device, a roller-type four-cable saddle, a four-cable trolley, a support assembly, a high-speed steering pulley, working cables (load-bearing cable, traction cable and return cable), a return saddle, a ropeway traction device, and a ground anchor.

[0099] (1) The specific process of building the four-cable freight ropeway system:

[0100] 1) Bury the ground anchor according to the span, height difference of the ropeway design and the on-site terrain, and install and anchor the lever-type tension automatic balancing device, the roller-type four-cable saddle, the support assembly, and the high-speed steering pulley.

[0101] 2) Unroll the traction cable. The traction cable winds around the traction device drum, the high-speed steering pulley, the support wheels of the roller-type four-cable saddle, the support wheels of the return saddle, and finally returns to the traction device drum to form a closed loop.

[0102] 3) Unroll the load-bearing cable and the return cable. One end of the outer load-bearing cable is wound and connected through the round holes at both ends of the lever-type cross beam of the lever-type tension automatic balancing device, and the other end is anchored through the ground anchor; both ends of the middle 2 load-bearing cables are wound and connected through the round holes of the lever-type cross beam of the lever-type tension automatic balancing device, and all 4 load-bearing cables cross the support wheels of the roller-type four-cable saddle on the support assembly, and finally four load-bearing cables are formed between the brackets.

[0103] 4) Finally, adjust the initial sag of the load-bearing cable so that the sags of the four load-bearing cables between the brackets are basically the same, thereby ensuring the balance of the initial tension of the load-bearing cable. Thus, the entire four-cable freight ropeway system is built.

[0104] (2) After the four-cable freight ropeway system is set up, the four-cable trolley can be used to transport goods on the ropeway. During the transportation process, when the four load-bearing cables are affected by vibrations, wind-induced offset loads, etc. during the load transportation process, resulting in uneven forces on each load-bearing cable, the load-bearing cable can be rotated and adjusted through the lever-type crossbeam of the lever-type tension automatic balancing device. At the same time, this set of system adopts a specially designed roller saddle, enabling the load-bearing cable to slide freely on it until the tensions of the four load-bearing cables between the brackets are basically balanced.

[0105] (3) When the four-cable freight ropeway system is dismantled, first, the load-bearing cable, the return cable, and the towing cable are removed from the brackets and retrieved; then, components such as the lever-type tension automatic balancing device, the roller four-cable saddle, the support assembly, and the high-speed steering pulley are gradually dismantled; finally, the ropeway site is tidied up.

[0106] The above are only embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included within the scope of the claims of the present invention pending approval.

Claims

1. A four-cable freight ropeway system, characterized in that, Comprising: A plurality of ground anchors (1), a support assembly, a lever-type tension automatic balancing device (2), and a load-bearing cable (6); The lever-type tension automatic balancing device (2) is fixed to the ground through the ground anchor (1); One end of the load-bearing cable (6) is fixed to the ground through the ground anchor (1), and the other end passes through the lever-type tension automatic balancing device (2) and the support assembly, turns back, and is fixed to the ground through the ground anchor (1); A four-cable trolley (5) is suspended on the load-bearing cable (6); The lever-type tension automatic balancing device (2) includes an anchoring device (12), a limiting device (13), a lever-type cross beam (14), a pulley bracket (15), a leg (16), and a rope spacing control pulley (17); the lever-type tension automatic balancing device (2) is connected to the ground anchor (1) through the anchoring device (12); The anchoring device (12) is provided with two bolt holes and is connected to the pulley bracket (15) by bolts; both ends of the cross beam of the anchoring device (12) are connected and anchored to the ground anchor (1); The pulley bracket (15) includes a hollow groove-shaped straight vertical beam and a hollow groove-shaped triangular bracket connected to one end of the vertical beam; the limiting devices (13) of the lever-type cross beam (14) are installed on both sides of the upper part of the vertical beam; a shaft hole is provided in the middle of the vertical beam for installing the lever-type cross beam (14); a row of shaft holes is provided on the lower edge of the triangular bracket for installing the rope spacing control pulley (17); Both ends of the lever-type cross beam (14) are each provided with a hole for winding the steel wire rope of the load-bearing cable (6); when the lever-type cross beam (14) rotates to a set limit value, it contacts the limiting device (13) to limit the rotation of the lever-type cross beam (14); The distance between the two pulley shafts of the rope spacing control pulley (17) is adjusted on the lower edge of the triangle of the pulley bracket (15) to control the distance between the load-bearing cables (6); The upper part of the leg (16) is fixedly connected to the lower edge of the triangle of the pulley bracket (15), and a disc is provided at the bottom of the leg (16). The leg (16) rotates around the connection at the lower edge of the triangle of the pulley bracket (15) to adjust the inclination angle of the bracket and reduce the force on the lever-type tension automatic balancing device (2) caused by the angle change; The number of the lever-type tension automatic balancing devices (2) is three; the three lever-type tension automatic balancing devices (2) are arranged between the ground anchor (1) and the support assembly; The load-carrying cable (6) is composed of four individual steel wire ropes. One end of one of the steel wire ropes is fixed to the ground through the first ground anchor (1), and the other end passes through the roller four-cable saddle (3) on the intermediate support assembly and is then connected to one end of the lever beam (14) of the first lever-type tension automatic balancing device (2) through the cable spacing control pulley (17) on one side of the first lever-type tension automatic balancing device (2). One end of the second steel wire rope is connected to the other end of the lever beam (14) of the first lever-type tension automatic balancing device (2), and the other end of the steel wire rope turns back and passes through the cable spacing control pulley (17) on the other side of the first lever-type tension automatic balancing device (2) and the roller four-cable saddle (3) on the intermediate support assembly, and then is connected to one end of the lever beam (14) of the second lever-type tension automatic balancing device (2) through the cable spacing control pulley (17) on one side of the second lever-type tension automatic balancing device (2). One end of the third steel wire rope is connected to the other end of the lever beam (14) of the second lever-type tension automatic balancing device (2), and the other end of the steel wire rope turns back and passes through the cable spacing control pulley (17) on the other side of the second lever-type tension automatic balancing device (2) and the roller four-cable saddle (3) on the intermediate support assembly, and then is connected to one end of the lever beam (14) of the third lever-type tension automatic balancing device (2) through the cable spacing control pulley (17) on one side of the third lever-type tension automatic balancing device (2). One end of the last steel wire rope is connected to the other end of the lever beam (14) of the third lever-type tension automatic balancing device (2), and the other end of the steel wire rope turns back and passes through the cable spacing control pulley (17) on the other side of the third lever-type tension automatic balancing device (2) and the roller four-cable saddle (3) on the intermediate support assembly, and then is fixed to the ground through the second ground anchor (1). The load-carrying cable (6) achieves automatic tension balance of the four load-carrying cables through the lever beams (14) of the three lever-type tension automatic balancing devices (2); the load-carrying cable (6) slides freely on the roller four-cable saddle (3).

2. A four-cable freight ropeway system according to claim 1, wherein the support assembly includes a support cross beam (25) and support legs (26); the support legs (26) adopt a lattice leg form; a roller four-cable saddle (3) and a return empty saddle (10) are arranged on the support assembly; the number of the support assemblies is two, and they are arranged between multiple ground anchors (1).

3. A four-cable freight cableway system according to claim 2, wherein The return empty saddle (10) is installed on the support cross beam (25) and is used to support the return empty cable (11) with both ends connected to the ground anchor (1).

4. A four-cable freight ropeway system according to claim 2, characterized in that, The four-cable freight ropeway system further includes: a traction assembly; the traction assembly includes a ropeway traction device (9), a traction cable (7) and four high-speed steering trolleys (8).

5. A four-cable freight ropeway system according to claim 4, wherein the high-speed steering trolley (8) includes a pulley (27), a pulley frame (28) and a pull ring (29); The pulley (27) is connected to the pulley frame (28) through a shaft hole, and the traction cable (7) turns around the pulley (27); the pull ring (29) is fixedly connected to the ground anchor (1).

6. A four-cable freight ropeway system according to claim 4, wherein, The four-cable freight ropeway system further includes: a roller-type four-cable saddle (3); The roller-type four-cable saddle (3) includes a saddle frame (18), a roller saddle (19), and a cable supporting wheel (20); The saddle frame (18) includes four columns. The columns are provided with shaft holes for installing the roller saddle (19) and the cable supporting wheel (20), and are connected pairwise through telescopic crossbeams. The lower part of the middle column is connected to the cable supporting wheel (20) through a shaft hole for supporting the traction cable (7); the columns are fixedly connected to the support crossbeam (25) through the upper support plates; the roller saddle (19) and the saddle frame (18) are connected by a shaft to form the roller-type four-cable saddle (3); The roller saddle (19) includes two symmetrically arranged saddle support plates (19-1) on the left and right and a row of rollers (19-2). The saddle support plates (19-1) are provided with a preset number of shaft holes evenly distributed along the curvature for installing the rollers (19-2); the load-bearing cable (6) rotates freely along the saddle support plates (19-1) through the rollers (19-2).

7. A four-cable freight ropeway system according to claim 1, wherein The four-cable trolley (5) includes a trolley frame (21), a cable gripper (22), four running wheels (23), and a load-carrying hole (24) at the lower end of the frame; The four-cable trolley (5) is hung on the load-bearing cable (6) through the running wheels (23). The cable gripper (22) is a splint (22-2) with a rope groove, and clamps the traction cable (7) through bolts (22-1); The traction assembly drives the four-cable trolley (5) to slide on the load-bearing cable (6) through the traction cable (7) and move back and forth between the support assemblies.

8. A four-cable freight ropeway system according to claim 7, wherein The trolley frame (21) has a U-shaped structure. The two ends of the U-shaped are provided with shaft holes connected to the running wheels (23). The upper edge of the bottom of the U-shaped is provided with a cable gripper (22), and the lower edge of the bottom of the U-shaped is provided with a load-carrying hole (24); The running wheels (23) are composed of two wheels (23-1), shaft holes (23-2), lateral support plates (23-3), and wheel frames (253-4); every two running wheels (23) are connected to the two ends of the U-shaped of the trolley frame (21) through the shaft holes (23-2); the lateral support plates (23-3) play a guiding role when the running wheels pass through the saddle; the wheel frames (23-4) rotate around the shaft connected to the trolley frame (21) during the traveling process.

9. A four-cable freight ropeway system according to claim 1, characterized in that, The ground anchor (1) adopts a directly buried steel plate ground anchor or a cast-in-place anchor pile.

10. A four-cable freight ropeway system according to claim 4, wherein The load-bearing cable (6) and the return cable (11) are steel wires ropes; The traction cable (7) is a closed steel wire rope.

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