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

Abstract

The present invention provides a four-cable freight ropeway system with a pulley-type self-balancing device, comprising: an anchor (1), a support assembly, a pulley-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 pulley-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 pulley type self-balancing device. Background Art

[0002] Overhead freight ropeways have the advantages of strong terrain adaptability, large climbing ability, strong transportation capacity, low environmental dependence, 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 cables. 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 have too much 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, there will be a sag difference 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 the designed load-bearing capacity of the ropeway, the present invention provides a four-cable freight ropeway system with a pulley type self-balancing device. The system uses a single steel wire rope to build a four-cable freight ropeway around a pulley type tension automatic balancing device. When the forces on the four load-bearing cables are unbalanced, the system can perform real-time adjustment through the pulley 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:

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

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

[0010] 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 pulley - type tension automatic balancing device (2) and is then fixed to the ground through the ground anchor (1);

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

[0012] Preferably, the pulley - type tension automatic balancing device (2) includes: an anchoring device (12), a pulley bracket (13), a load - bearing cable turning pulley (14), a leg (15), and a rope - spacing control pulley (16); the pulley - 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 bracket (13) 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 bracket (13) includes a hollow - groove - type one - shaped vertical beam and a hollow - groove - type triangular bracket connected to one end of the vertical beam; a shaft hole is provided in the middle of the vertical beam for installing the load - bearing cable turning pulley (14); a row of shaft holes is provided along the lower edge of the triangular bracket for installing the rope - spacing control pulley (16);

[0015] The upper part of the leg (15) is fixedly connected to the lower edge of the triangle of the pulley bracket (13), and a disc is provided at the bottom of the leg (15); the leg (15) rotates around the connection of the lower edge of the triangle of the pulley bracket (13) to adjust the inclination angle of the bracket and reduce the angular stress on the pulley - type tension automatic balancing device (2);

[0016] The distance between the two pulley shafts of the rope - spacing control pulley (16) is adjusted on the lower edge of the triangle of the pulley bracket (13) to control the distance between the load - bearing cables (6).

[0017] Preferably, the support assembly includes a bracket cross - beam (24) and a bracket leg (25); the bracket leg (25) adopts a lattice - type leg form; a roller - type four - cable saddle (3) and a return 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).

[0018] Further, the number of the pulley - type tension automatic balancing devices is three; the three pulley - type tension automatic balancing devices (2) are arranged between the ground anchor (1) and the support assembly;

[0019] The load-carrying cable (6) is a single steel wire rope, one end of which is fixed to the ground through the first ground anchor (1), and the other end passes through the roller-type four-cable saddle on the middle two support components, turns back around the load-carrying cable turning pulley (14) and the rope spacing control pulley (16) of the first pulley-type tension automatic balancing device (2), then turns back around the load-carrying cable turning pulley (14) and the rope spacing control pulley (16) of the second pulley-type tension automatic balancing device (2) through the roller-type four-cable saddle on the middle two support components, and finally turns back around the load-carrying cable turning pulley (14) and the rope spacing control pulley (16) of the third pulley-type tension automatic balancing device (2) through the roller-type four-cable saddle on the middle two support components, and is fixed to the ground after being connected to the second ground anchor (1) through the roller-type four-cable saddle on the middle two support components;

[0020] When the load-carrying cable (6) turns back and turns around the three pulley-type tension automatic balancing devices (2), it passes through the roller-type four-cable saddle (3) on the support component four times, forming four load-carrying cables between the two support components.

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

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

[0023] Further, the four-cable freight cableway system further includes: a traction component;

[0024] The traction component includes a cableway traction device (9), a traction cable (7), and four high-speed turning pulleys (8);

[0025] The traction cable (7) winds out from the drum of the cableway traction device (9), turns around the four high-speed turning pulleys (8), passes through the roller-type four-cable saddle (3) on the support component and the empty-return saddle (10), and finally returns to the drum of the cableway traction device (9) to form a closed loop.

[0026] Further, the high-speed turning pulley (8) includes a pulley (26), a pulley frame (27), and a pull ring (28);

[0027] The pulley (26) is connected to the pulley frame (27) through a shaft hole, and the traction cable (7) turns around the pulley (26); the pull ring (28) is connected and fixed to the ground anchor (1).

[0028] Further, the four-cable freight cableway system further includes: a roller-type four-cable saddle (3);

[0029] The roller-type four-cable saddle (3) includes a saddle frame (17), a roller saddle (18), and a cable supporting wheel (19);

[0030] The saddle frame (17) includes four columns, and the columns are provided with shaft holes for installing the roller saddle (18) and the cable supporting wheel (19). The columns are connected in pairs by telescopic cross beams; the lower part of the middle column is connected to the cable supporting wheel (19) through a shaft hole for supporting the traction cable (7); the columns are fixedly connected to the support cross beam (24) through the upper support plates; the roller saddle (18) and the saddle frame (17) are connected by a shaft to form the roller-type four-cable saddle (3);

[0031] The roller saddle (18) includes two symmetrically arranged saddle support plates (18-1) on the left and right and a row of rollers (18-2). The saddle support plates (18-1) are uniformly distributed with a preset number of shaft holes along the curvature for installing the rollers (18-2); the load-bearing cable (6) freely slides along the saddle support plates (18-1) through the rollers (18-2).

[0032] Furthermore,

[0033] The four-cable trolley (5) includes a trolley frame (20), a cable gripper (21), and four traveling wheels (22), as well as a load-carrying hole (23) at the lower end of the frame;

[0034] The four-cable trolley (5) is hung on the load-bearing cable (6) through the traveling wheels (22). The cable gripper (21) is a splint (21-2) with a rope groove and clamps the traction cable (7) through bolts (21-1);

[0035] The traction assembly drives the four-cable trolley (5) to slide on the load-bearing cable (6) through the traction cable (7) and reciprocates between the support assemblies.

[0036] Furthermore, the trolley frame (20) has a U-shaped structure. The two ends of the U-shape are provided with shaft holes for connecting the traveling wheels (22). The upper edge of the bottom of the U-shape is provided with the cable gripper (21), and the lower edge of the bottom of the U-shape is provided with the load-carrying hole (23).

[0037] The traveling wheels (22) are composed of two wheels (22-1), shaft holes (22-2), lateral support plates (22-3), and wheel frames (22-4); every two traveling wheels (22) are connected to the two ends of the U-shape of the trolley frame (20) through the shaft holes (22-2); the lateral support plates (22-3) play a guiding role when the traveling wheels pass through the saddle; the wheel frames (22-4) rotate around the shaft connected to the trolley frame (20) during the traveling process.

[0038] Preferably, the ground anchor (1) adopts a directly buried steel plate ground anchor or a cast-in-place anchor pile.

[0039] Furthermore, the load-carrying cable (6) and the return cable (11) are steel wire ropes; the towing cable (7) is a closed steel wire rope.

[0040] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0041] The present invention provides a four-cable freight ropeway system with a pulley-type self-balancing device, including an anchor (1), a support assembly, a pulley-type tension automatic balancing device (2), and a load-carrying cable (6); the pulley-type tension automatic balancing device (2) is fixed to the ground through the anchor (1); one end of the load-carrying cable (6) is fixed to the ground through the anchor (1), and the other end passes through the pulley-type tension automatic balancing device (2) and is fixed to the ground through the anchor (1); a four-cable trolley (5) is suspended on the load-carrying cable (6). This patent builds a freight ropeway by winding a single steel wire rope around a pulley-type tension automatic balancing device, and uses the pulleys of the automatic balancing device to achieve automatic tension balance of the load-carrying cable.

[0042] When the four load-carrying cables of the technical solution provided by the present invention are stressed unevenly, the system can be adjusted in real time through the pulley-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.

[0043] 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

[0044] Figure 1 is a schematic diagram of the overall structure of a four-cable freight ropeway system with a pulley-type self-balancing device according to the present invention;

[0045] Among them, 1: anchor; 2: pulley-type tension automatic balancing device; 3: roller-type four-cable saddle; 4: support assembly; 5: four-cable trolley; 6: load-carrying cable; 7: towing cable; 8: high-speed steering pulley; 9: ropeway towing device; 10: return saddle; 11: return cable;

[0046] Figure 2 is a schematic diagram of a four-cable freight ropeway with a pulley-type self-balancing device according to the present invention;

[0047] Among them, 1: anchor; 2: pulley-type tension automatic balancing device; 3: roller-type four-cable saddle; 4: support assembly; 5: four-cable trolley; 6: load-carrying cable; 7: towing cable; 10: return saddle; 11: return cable;

[0048] Figure 3 is a schematic diagram of the pulley-type tension automatic balancing device according to an embodiment of the present invention;

[0049] Among them, 12: anchoring device; 13: pulley bracket; 14: load-bearing cable turning pulley; 15: outrigger; 16: rope spacing control pulley;

[0050] Figure 4 Schematic diagram of the roller-type four-cable saddle of the embodiment of the present invention;

[0051] Among them, 17: saddle frame; 18: roller saddle; 19: cable supporting wheel;

[0052] Figure 5 Schematic diagram of the roller saddle of the embodiment of the present invention;

[0053] Among them, 18-1: saddle support plate; 18-2: roller;

[0054] Figure 6 Schematic diagram of the four-cable trolley of the embodiment of the present invention;

[0055] Among them, 20: trolley frame; 21: cable gripper; 21-1: bolt; 21-2: splint; 22: traveling wheel; 23: load hole;

[0056] Figure 7 Schematic diagram of the traveling wheel of the four-cable trolley of the embodiment of the present invention;

[0057] Among them, 22-1: wheel; 22-2: shaft hole; 22-3: lateral support plate; 22-4: wheel frame;

[0058] Figure 8 Schematic diagram of the support assembly of the embodiment of the present invention;

[0059] Among them, 24: support cross beam; 25: support outrigger;

[0060] Figure 9 Schematic diagram of the high-speed steering pulley of the embodiment of the present invention;

[0061] Among them, 26: pulley; 27: pulley bracket; 28: pull ring. Specific embodiments

[0062] In order 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 efforts shall fall within the scope of protection of the present invention.

[0063] The four-cable freight ropeway system with a pulley-type self-balancing device provided by the present invention relates to the field of transmission line engineering. The traditional erection method of the four-cable ropeway requires 4 separate steel wires as load-bearing cables. 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 pulley-type self-balancing device proposed in this patent only requires 1 steel wire and, in combination with the pulley-type automatic tension balancing device, can realize the construction of the four-cable freight ropeway. At the same time, the tension of the load-bearing cable between the brackets can be adjusted for tension balance through the pulley-type automatic tension balancing device, greatly reducing the workload and difficulty of the initial adjustment after the erection of the ropeway. At the same time, dynamic tension balance adjustment can be realized during the operation of the trolley, which is flexible and easy to use, and improves the operation stability of the four-cable freight ropeway.

[0064] Embodiment 1:

[0065] The four-cable freight ropeway system with a pulley-type self-balancing device provided by the embodiment of the present invention has an overall structure as Figure 1 shown, including an anchor 1, a support assembly, a pulley-type automatic tension balancing device 2, and a load-bearing cable 6;

[0066] The pulley-type automatic tension balancing device 2 is fixed to the ground through the anchor 1;

[0067] One end of the load-bearing cable 6 is fixed to the ground through the anchor 1, and the other end passes through the pulley-type automatic tension balancing device 2 and the support assembly, turns back and is fixed to the ground through the anchor 1;

[0068] The four-cable trolley 5 is suspended on the load-bearing cable 6.

[0069] As Figure 3 shown, the pulley-type automatic tension balancing device 2 includes an anchoring device 12, a pulley bracket 13, a load-bearing cable turning pulley 14, a leg 15, and a rope spacing control pulley 16; the pulley-type automatic tension balancing device 2 is connected to the anchor 1 through the anchoring device 12;

[0070] Among them:

[0071] The anchoring device 12 is provided with two bolt holes and is connected to the pulley bracket 13 through bolts; both ends of the cross beam of the anchoring device 12 are connected and anchored to the anchor 1;

[0072] The pulley bracket 13 includes a hollow groove-type straight vertical beam and a hollow groove-type triangular bracket connected to one end of the vertical beam; a shaft hole is provided in the middle of the vertical beam for installing the load-bearing cable turning pulley 14; a row of shaft holes is provided along the lower edge of the triangular bracket for installing the rope spacing control pulley 16;

[0073] The upper part of the outrigger 15 is fixedly connected to the triangular lower edge of the pulley bracket 13, and a disc is provided at the bottom of the outrigger 15; the outrigger 15 rotates around the connection of the triangular lower edge of the pulley bracket 13 to adjust the inclination angle of the bracket and reduce the angular force on the pulley-type tension automatic balancing device 2.

[0074] The distance between the two pulley shafts of the rope spacing control pulley 16 is adjusted on the triangular lower edge of the pulley bracket 13 to control the distance between the load-carrying cables 6.

[0075] As Figure 8 shown, the support assembly includes a bracket cross beam 24 and a bracket outrigger 25; the bracket outrigger 25 adopts a lattice outrigger form, and the cross beam structure form is determined according to the design load of the cableway and its stress condition. Commonly used ones are I-beams and steel pipe cross beams.

[0076] A roller-type four-cable saddle 3 and a return empty saddle 10 are arranged on the support assembly.

[0077] The number of support assemblies is two and they are arranged between multiple ground anchors 1.

[0078] The number of pulley-type tension automatic balancing devices is three; the three pulley-type tension automatic balancing devices 2 are arranged between the ground anchor 1 and the support assembly.

[0079] The load-carrying cable 6 adopts a single steel wire rope. One end is fixed to the ground through the first ground anchor 1, and the other end passes through the roller-type four-cable saddles on the middle two support assemblies, turns back around the load-carrying cable turning pulley 14 and the rope spacing control pulley 16 of the first pulley-type tension automatic balancing device 2, and then turns back around the load-carrying cable turning pulley 14 and the rope spacing control pulley 16 of the second pulley-type tension automatic balancing device 2 through the roller-type four-cable saddles on the middle two support assemblies. Finally, it turns back around the load-carrying cable turning pulley 14 and the rope spacing control pulley 16 of the third pulley-type tension automatic balancing device 2 through the roller-type four-cable saddles on the middle two support assemblies, and is fixed to the ground after being connected to the second ground anchor 1 through the roller-type four-cable saddles on the middle two support assemblies.

[0080] When the load-carrying cable 6 turns back and turns around the three pulley-type tension automatic balancing devices 2, it passes through the roller-type four-cable saddles 3 on the support assembly four times, forming four load-carrying cables between the two support assemblies.

[0081] Among them, the load-carrying cable 6 achieves the automatic balance of the tension of the four load-carrying cables through the load-carrying cable turning pulley 14 of the three pulley-type tension automatic balancing devices 2; the load-carrying cable 6 slides freely on the roller-type four-cable saddle 3.

[0082] Among them: The return empty saddle 10 is installed on the bracket cross beam 24 to support the return empty cable 11 with both ends connected to the ground anchor 1.

[0083] The four-cable freight ropeway system further includes: a traction assembly;

[0084] The traction assembly includes a ropeway 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 ropeway for transmission line construction.

[0085] The traction cable 7 is wound out from the drum of the ropeway traction device 9, turns after passing through the first high-speed turning pulley 8, passes through the supporting wheels 19 of the roller four-cable saddles 3 on two supporting assemblies, turns twice after passing through the second high-speed turning pulley 8 and the third high-speed turning pulley 8, passes through the supporting wheels of the return empty saddles 11 on two supporting assemblies, turns after passing through the fourth high-speed turning pulley 8, and finally returns to the drum of the ropeway traction device 9 to form a closed loop.

[0086] Among them, the structure of the high-speed turning pulley 8 is as Figure 9 shown, and is used for the turning of the traction cable, including a pulley 26, a pulley frame 27, and a pull ring 28; the pulley 26 is connected to the pulley frame 27 through an axial hole, and the traction cable 7 turns around the pulley 26; the pull ring 28 is fixedly connected to the ground anchor 1.

[0087] The four-cable freight ropeway system further includes: a roller four-cable saddle 3, the structure of which is as Figure 4 shown;

[0088] The roller four-cable saddle 3 includes a saddle frame 17, a roller saddle 18, and a supporting wheel 19;

[0089] Among them: the saddle frame 17 includes four columns, and the columns are provided with axial holes for installing the roller saddle 18 and the supporting wheel 19, and the columns are connected in pairs through telescopic cross beams; the lower part of the middle column is connected to the supporting wheel 19 through an axial hole for supporting the traction cable 7; the columns are fixedly connected to the support cross beam 24 through the upper support plates; the roller saddle 18 and the saddle frame 17 are connected through an axis to form the roller four-cable saddle 3;

[0090] The structure of the roller saddle 18 is as Figure 5 shown, including two symmetrically arranged saddle support plates 18-1 on the left and right and a row of rollers 18-2. The saddle support plates 18-1 are uniformly distributed with a preset number of axial holes along the curvature for installing the rollers 18-2; the load-bearing cable 6 slides freely along the saddle support plates 18-1 through the rollers 18-2.

[0091] The structure of the four-cable trolley 5 is as Figure 6 shown, including a trolley frame 20, a rope gripper 21, and traveling wheels 22, and a load-carrying hole 23 at the lower end of the frame;

[0092] The four-cable trolley 5 is hung on the load-bearing cable 6 through the traveling wheels 22; the rope gripper 21 is a splint 21-2 with a rope groove, and clamps the traction cable 7 through bolts 21-1;

[0093] 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, realizing the movement of goods.

[0094] Among them:

[0095] The trolley frame 20 is of a U-shaped structure. Shaft holes connected to the running wheels 22 are provided at both ends of the U shape. A cable gripper 21 is provided on the upper edge of the bottom of the U shape, and a load-carrying hole 23 is provided on the lower edge of the bottom of the U shape;

[0096] In the four-cable trolley 5, the structure of the running wheel 22 is as Figure 7 shown, and it is composed of two wheels 22-1, a shaft hole 22-2, a lateral support plate 22-3, and a wheel frame 22-4; the running wheel is a double-wheel combination, the wheels are provided with wheel grooves to match the load-bearing cable, and at the same time, the double wheels can improve the load-bearing capacity of the trolley; every two running wheels 22 are connected to both ends of the U shape of the trolley frame 20 through the shaft hole 22-2; the lateral support plate 22-3 plays a guiding role when the running wheel passes through the saddle; the wheel frame 22-4 rotates around the shaft connected to the trolley frame 20 during the traveling process.

[0097] In the four-cable freight ropeway system, the ground anchor 1 adopts a directly buried steel plate ground anchor or a cast-in-place anchor pile;

[0098] 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 bears 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.

[0099] Embodiment 2:

[0100] As Figure 1 and Figure 2 shown, the four-cable freight ropeway with a pulley-type self-balancing device provided by the embodiment of the present invention includes a pulley-type tension automatic balancing device, a roller-type four-cable saddle, a four-cable trolley, a support assembly, a high-speed steering trolley, working ropes (load-bearing cable, traction cable, and return cable), a return saddle, a ropeway traction device, a ground anchor and other components.

[0101] (1) The specific process of building the four-cable freight ropeway system:

[0102] 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 pulley-type tension automatic balancing device, the roller-type four-cable saddle, the support assembly, and the high-speed steering trolley.

[0103] 2) Unroll the traction cable. The traction cable winds around the traction device drum, the high-speed steering trolley, 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.

[0104] 3) Unroll the load-carrying cable and the return cable. The load-carrying cable reciprocates between the single-rope steel wire rope around the pulley-type tension automatic balance device and the roller-type four-cable saddle, and finally forms four load-carrying cables between the brackets, and anchor the two ends of the load-carrying cable steel wire rope.

[0105] 4) Finally, adjust the initial sag of the load-carrying cable so that the sags of the four load-carrying cables between the brackets are basically the same, thus ensuring the balance of the initial tension of the load-carrying cable. So far, the entire four-cable freight ropeway system has been built.

[0106] (2) After the four-cable freight ropeway system is built, a four-cable trolley can be used to transport goods on the ropeway. During the transportation process, when the four load-carrying cables are affected by vibrations during the load transportation process, wind-induced load, etc., resulting in unbalanced forces on each load-carrying cable, the load-carrying cable will rotate and adjust around the pulley of the pulley-type tension automatic balance device. At the same time, this set of systems uses specially designed roller saddles, so that the load-carrying cable can slide freely on it until the tensions of the four load-carrying cables between the brackets are basically balanced.

[0107] (3) When the four-cable freight ropeway system is dismantled, first remove the load-carrying cable, the return cable and the towing cable from the brackets and retract them; then gradually remove components such as the pulley-type tension automatic balance device, the roller-type four-cable saddle, the support assembly, and the high-speed steering pulley; finally, tidy up the ropeway site.

[0108] 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 in the scope of the claims of the present invention pending approval.

Claims

1. A four-cable freight ropeway system, characterized in that, Comprising: Multiple ground anchors (1), a support assembly, a pulley - type tension automatic balancing device (2), and a load - bearing cable (6); The pulley - 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 pulley - type tension automatic balancing device (2) and the support assembly and is then fixed to the ground through the ground anchor (1); A four - cable trolley (5) is suspended on the load - bearing cable (6); The pulley - type tension automatic balancing device (2) includes: an anchoring device (12), a pulley support (13), a load - bearing cable turning pulley (14), a leg (15), and a rope - spacing control pulley (16); the pulley - 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 bolt - connected to the pulley support (13); both ends of the cross - beam of the anchoring device (12) are connected and anchored to the ground anchor (1); The pulley support (13) includes a hollow - groove - type one - word vertical beam and a hollow - groove - type triangular support connected to one end of the vertical beam; a shaft hole is provided in the middle of the vertical beam for installing the load - bearing cable turning pulley (14); a row of shaft holes is provided along the lower edge of the triangular support for installing the rope - spacing control pulley (16); The upper part of the leg (15) is fixedly connected to the lower edge of the triangle of the pulley support (13), and a disc is provided at the bottom of the leg (15); the leg (15) rotates around the connection point of the lower edge of the triangle of the pulley support (13); The distance between the two pulley shafts of the rope - spacing control pulley (16) is adjusted on the lower edge of the triangle of the pulley support (13) to control the distance between the load - bearing cables (6); The number of the pulley - type tension automatic balancing devices (2) is three; the three pulley - type tension automatic balancing devices (2) are arranged between the ground anchor (1) and the support assembly; The load - bearing cable (6) is a single - strand steel wire rope. One end 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 two support assemblies, turns back around the load - bearing cable turning pulley (14) and the rope - spacing control pulley (16) of the first pulley - type tension automatic balancing device (2), then turns back around the load - bearing cable turning pulley (14) and the rope - spacing control pulley (16) of the second pulley - type tension automatic balancing device (2) through the roller - type four - cable saddle (3) on the middle two support assemblies, and finally turns back around the load - bearing cable turning pulley (14) and the rope - spacing control pulley (16) of the third pulley - type tension automatic balancing device (2) through the roller - type four - cable saddle (3) on the middle two support assemblies, and is then fixed to the ground after being connected to the second ground anchor (1) through the roller - type four - cable saddle (3) on the middle two support assemblies; When the load - bearing cable (6) turns back and turns around the three pulley - type tension automatic balancing devices (2), it passes through the roller - type four - cable saddle (3) on the support assembly four times, forming four load - bearing cables between the two support assemblies; The load-bearing cable (6) achieves automatic tension balance of the four load-bearing cables through the load-bearing cable turning pulleys (14) of the three pulley-type tension automatic balance devices (2); the load-bearing cable (6) slides freely on the roller-type four-cable saddle (3).

2. A four-cable freight ropeway system according to claim 1, characterized in that the support assembly includes a support cross beam (24) and support legs (25); the support legs (25) adopt a lattice leg form; 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).

3. A four-cable freight ropeway system according to claim 2, characterized in that, 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).

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 turning trolleys (8).

5. A four-cable freight ropeway system according to claim 4, characterized in that the high-speed turning trolley (8) includes a pulley (26), a pulley frame (27), and a pull ring (28); the pulley (26) is connected to the pulley frame (27) through an axial hole, and the traction cable (7) turns around the pulley (26); the pull ring (28) is fixedly connected to the ground anchor (1).

6. A four-cable freight ropeway system according to claim 2, characterized in that, 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 (17), a roller saddle (18), and a cable supporting wheel (19); the saddle frame (17) includes four columns, the columns are provided with axial holes for installing the roller saddle (18) and the cable supporting wheel (19), and the columns are connected in pairs by telescopic cross beams; the lower part of the middle column is connected to the cable supporting wheel (19) through an axial hole for supporting the traction cable (7); the columns are fixedly connected to the support cross beam (24) through the upper support plates; the roller saddle (18) and the saddle frame (17) are connected by an axle to form the roller-type four-cable saddle (3); the roller saddle (18) includes two symmetrically arranged saddle support plates (18-1) on the left and right and a row of rollers (18-2), and the saddle support plates (18-1) are uniformly distributed with a preset number of axial holes along the curvature for installing the rollers (18-2); the load-bearing cable (6) slides freely along the saddle support plates (18-1) through the rollers (18-2).

7. A four-cable freight ropeway system according to claim 4, characterized in that the four-cable trolley (5) includes a trolley frame (20), a cable gripper (21), four running wheels (22), and a load-carrying hole (23) at the lower end of the frame; the four-cable trolley (5) is hung on the load-bearing cable (6) through the running wheels (22); the cable gripper (21) is a clamping plate (21-2) with a rope groove, and the traction cable (7) is clamped by bolts (21-1); 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, characterized in that The trolley frame (20) is in a U-shaped structure. Axle holes connected to the running wheels (22) are provided at both ends of the U-shape. A cable gripper (21) is provided at the upper edge of the bottom of the U-shape, and a load hole (23) is provided at the lower edge of the bottom of the U-shape. The running wheel (22) consists of two wheels (22-1), an axle hole (22-2), a lateral support plate (22-3), and a wheel frame (22-4); every two running wheels (22) are connected to both ends of the U-shape of the trolley frame (20) through the axle hole (22-2); the lateral support plate (22-3) plays a guiding role when the running wheel passes through the saddle; the wheel frame (22-4) rotates around the axis connected to the trolley frame (20) 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. The four-cable freight ropeway system according to claim 4, wherein The load-carrying cable (6) and the return cable (11) are steel wire ropes; The towing cable (7) is a closed steel wire rope.

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