A multi-cable, large-span, top-moving power supply aerial facility system

Abstract

The present invention discloses a multi-cable, large-span, top-moving power supply aerial facility system. A performance venue is suspended with load-bearing and power supply cables, and a cable tug group, a cable tug head, and a running trolley are suspended on the load-bearing and power supply cables. A sling assembly is provided below the running trolley. A lifting wire rope is connected to the sling assembly and the running trolley, and the lifting wire rope is connected to the drive assembly and the steel column assembly. A traveling wire rope is fixed to the running trolley, and the traveling wire rope is connected to the drive assembly. A circulating wire rope is connected to the cable tug group and the cable tug head, and the circulating wire rope is connected to the cable drive device. Cables and / or optical fibers are arranged on the cable tug group and the cable tug head. The advantages are: the system can achieve synchronous and coordinated operation of lifting, walking, and mobile power supply. The props that are suspended, lifted, flipped, and rotated can be adjusted along the curve on the load-bearing and power supply cables with flexible slopes, solving the problem of strong and weak electricity and optical cable signal transmission on the cables.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile power supply aerial facilities, and in particular to a multi-cable large-span top mobile power supply aerial facility system. Background Art

[0002] With the development of variety shows and aerial performances in various forms, and the ever-changing repertoires of performances, for the safety of actors and the reliability of equipment, the current drive systems of aerial performance devices are mostly temporary and only suitable for performances on this occasion, and only for hanging lightweight props. The ends of the steel cables cannot be adjusted, and the pulleys at the top of the steel cables have a large deflection angle. During the rotation of the props, the main cables are unevenly stressed, the hanging points swing violently, and the steel cables are easily entangled. The top of the steel cables is mobile for power supply, and the movement of the power supply system is not coordinated with the movement of the props. The cable is prone to jamming when running on the steel cables, which affects the power supply effect. At the same time, most of the current drive equipment has only one set of reduction motors. Once the reduction motor fails, the performance will be interrupted or terminated. Summary of the Invention

[0003] The object of the present invention is to provide a multi-cable large-span top-moving power supply aerial facility system, thereby solving the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A multi-cable, large-span, top-moving power supply aerial facility system, comprising a steel column assembly, an auxiliary support assembly, a load-bearing and power supply steel cable, a steel cable fixing assembly, a rotating guide pulley assembly, a running trolley, a sling assembly, a lifting wire rope, a traveling wire rope, a circulating wire rope, a cable tug assembly, a cable tug head, a drive assembly, and a cable drive device;

[0006] A steel column assembly is provided on each of the steel structures on opposite sides of the top of the performance venue. The two ends of the load-bearing and power supply steel cables are respectively passed over the steel cable support pulley assemblies provided on the top of the steel column assemblies and are fixedly connected to the steel structure via the steel cable fixing assemblies.

[0007] The cable tug group, the cable tug head and the running trolley are sequentially suspended on the load-bearing and power supply cables at intervals, the cable tug group is connected to the cable tug head, the cable tug head is connected to the running trolley, and a sling assembly is provided under the running trolley;

[0008] The side of the steel column assembly is provided with an auxiliary support assembly fixedly connected to it, and the top of the auxiliary support assembly is provided with a wire rope supporting pulley assembly, and the lower end of the steel column assembly and the steel structure near it are provided with a rotating guide pulley assembly, and the lifting wire rope is connected to the sling assembly and the running trolley, and the two ends of the lifting wire rope are respectively fixedly connected to the driving assembly and the rotating lifting ring on the steel column assembly after passing through the rotating guide pulley assembly on the corresponding side; the running trolley is fixedly connected to the walking wire rope, and the two ends of the walking wire rope are respectively connected to the driving assembly after passing through the wire rope supporting pulley assembly on the corresponding side;

[0009] One end of the circulating steel wire rope is connected to the cable driving device, and the other end of the circulating steel wire rope is connected to the cable driving device after passing through the cable tug group and the cable tug head in sequence; the cable and / or optical fiber is laid on the cable tug group and the cable tug head.

[0010] Preferably, the load-bearing and power supply steel cables include load-bearing steel cables and cable steel cables that are arranged in parallel and at intervals, at least one load-bearing steel cable is arranged on each side of the cable steel cable, the running trolley is suspended on the load-bearing steel cables and the cable steel cables, and the cable tug group and the cable tug head are suspended on the cable steel cables; the models of the load-bearing steel cables and cable steel cables are calculated and selected by discrete simulation technology, and the load-bearing steel cables and cable steel cables are connected with real-time tension detection devices, and the real-time tension detection devices detect the tension of the load-bearing steel cables and cable steel cables in real time. When the tension exceeds 120% of the preset tension, an alarm is issued to achieve overload protection.

[0011] Preferably, the sling assembly includes a lifting connection seat, a sling arranged on the lower surface of the lifting connection seat, and a rotating lifting pulley arranged at both ends of the lifting connection seat; the running trolley includes a walking connection seat, a wire rope fixing seat arranged on the walking connection seat, a walking pulley and a walking guide wheel arranged on the top of the walking connection seat, and a lifting guide wheel and a rotating guide wheel arranged at both ends of the walking connection seat; one end of the lifting wire rope is connected to the driving assembly, and the other end first passes through the rotating guide pulley assembly on the steel column assembly, the lifting guide wheel on one side of the running trolley and the rotating guide wheel on the sling assembly in sequence After the lifting pulley, it passes through the lifting guide wheel on the other side of the running trolley in turn and is fixedly connected to the rotating lifting ring on the steel column assembly; the walking wire rope is fixedly connected to the wire rope fixing seat, and the two ends of the walking wire rope respectively pass through the rotating guide wheels at the corresponding ends on the running trolley, and then pass through the rotating guide pulley assembly and the wire rope support pulley assembly on the steel column assembly and the tensioning wheel on the counterweight guide rail set on one side of the steel column assembly, and then are connected to the driving assembly; the load-bearing steel cable passes through the walking pulley, the cable steel cable passes through the walking guide wheel, and the walking wire rope is fixedly connected to the walking connecting seat.

[0012] Preferably, the driving assembly includes a lifting device and a walking device, and the aerial facility system includes four walking steel ropes and four lifting steel ropes. The four lifting steel ropes are respectively connected to a set of lifting devices, that is, one lifting steel rope is driven by a set of lifting devices, and the four walking steel ropes are connected to the same set of walking devices, that is, the four walking steel ropes are driven by a set of walking devices; both the walking device and the lifting device are driven by a winch to achieve movement.

[0013] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0014] The reel assembly includes a rotating shaft, a sleeve, a rope-stopping roller and a reel; a rotating shaft is provided at both ends of the reel, the rotating shaft is connected to the sleeve via a key, and the sleeve is connected to the traveling reel fixing assembly via a bearing; a rope-stopping roller is provided at both ends of the reel;

[0015] Each of the lifting wire ropes is wound around the drum of each corresponding lifting device, and both ends of each of the traveling wire ropes are wound around the drum of the traveling device in an interval of one retracted and one released.

[0016] Preferably, the pitch of the lifting wire rope wound on the drum of the lifting device and the pitch of the lead screw of the lifting device are adjusted by the number of sprocket teeth on the drum and the number of sprocket teeth on the lead screw, and finally the two are equal; the pitch of the walking wire rope wound on the drum of the walking device and the pitch of the lead screw of the walking device are adjusted by the number of sprocket teeth on the drum and the number of sprocket teeth on the lead screw, and finally the two are equal.

[0017] Preferably, the cable tug group includes a plurality of cable tugs suspended at intervals on the cable steel rope, two adjacent cable tugs are connected by chains, a cable tug located at the end is connected to the cable tug head by a chain; the cable tug head is connected to the running trolley by a chain.

[0018] The cam is connected to the cable tray of claim 1, wherein the first and second pulleys are connected at two ends of the first bracket to the cam, and the second and second pulleys are connected at two ends of the second bracket to the cam.

[0019] Preferably, the cable tug head includes a first bracket, a first baffle, a first pulley group, a steering pulley, a second bracket and a cable support; a first pulley group is respectively provided at both ends of one side of the first bracket, and a baffle is respectively connected to the two ends of the other side of the first bracket, a chain connecting piece is provided on the baffle, and a second pulley group is respectively provided on the opposite sides of one baffle, and a steering pulley is provided on the other baffle; a second bracket perpendicular to it is connected to the middle of the first bracket, the second bracket is connected to the cable support, and a pressure plate is provided on the second bracket, the cable and / or optical fiber is stretched on the cable support and pressed by the pressure plate; the first pulley group is connected to the cable steel rope, and the circulating steel wire rope passes around the second pulley group on one side and then deflected by the steering pulley and passes around a second pulley group on the other side.

[0020] Preferably, the first pulley group includes suspended pulleys arranged adjacent to each other up and down, and the cable steel rope passes through the gap between the two suspended pulleys; the second pulley group includes a large pulley and a small pulley arranged adjacent to each other up and down, and the chain connecting member is located below the small pulley; the circulating steel wire rope passes through the gap between the large pulley and the small pulley; the first pulley group and the second pulley group automatically adjust the angle through the rotating shaft, so that the cable tug head and the cable tug group can run smoothly on the steel cable with a slope.

[0021] The present invention has the following beneficial effects: 1. A dual-motor, self-arranging rope structure for both lifting and traveling allows for fast, long-range prop and scene switching. The rational arrangement of the number of trolleys and the lifting and traveling suspension points allows one or more trolleys to automatically adjust their angles and operate smoothly on the load-bearing and power-supply cables. 2. The swinging pulleys at each suspension point on the trolley enable it to support the complex rotation of props. The horizontal movement of the trolley is driven by a set of traveling devices, with the lifting and traveling cables backed up in pairs, achieving mechanical redundancy and synchronized operation. 3. As the trolley moves, the cable tug moves with it, and the cables and optical fibers attached to the cable tugs move with them. Sufficient margin is left for the cables and optical fibers, ensuring coordinated operation with the trolley, enabling efficient long-distance transmission of high and low-voltage power and optical cable signals on large-span cables. 4. The dual-motor structure increases equipment reliability. If the main reduction motor fails, the backup reduction motor can be quickly switched to achieve "zero-error" operation. 5. The system has a fast running speed, high degree of automation and high working efficiency, which meets the functional use of the theater. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an aerial facility system in an embodiment of the invention;

[0023] Figure 2 is a top view of an aerial facility system according to an embodiment of the invention;

[0024] Figure 3 Schematic diagram of a running trolley, a cable tug and a cable tug head in an embodiment of the invention;

[0025] Figure 4 This is a schematic diagram of the connection between the running trolley and the spreader assembly in an embodiment of the invention;

[0026] Figure 5 It is a structural diagram of a lifting device in an embodiment of the invention;

[0027] Figure 6 This is a schematic structural diagram of a walking device in an embodiment of the invention;

[0028] Figure 7 2 is a schematic structural diagram of a cable tug group according to an embodiment of the invention;

[0029] Figure 8 2 is a schematic structural diagram of a cable tug in an embodiment of the invention;

[0030] Figure 9 It is a structural schematic diagram of the cable tug head in an embodiment of the invention.

[0031] In the figure: 1. Bird's nest; 2. Cable tug; 21. First bracket; 22. Baffle; 23. Suspension pulley; 24. Large pulley; 25. Small pulley; 26. Second bracket; 27. Cable support; 28. Pressure plate; 3. Cable tug head; 31. Steering pulley; 32. Chain; 33. Chain connector; 4. Load-bearing and power supply cables; 41. Load-bearing cables; 42. Cable cables; 5. Traveling trolley; 51. Traveling connecting seat; 52. Traveling pulley; 53. Lifting guide wheel; 54. Traveling guide wheel; 6. Spreader assembly; 61. Lifting connection seat; 62. Rotating lifting pulley; 7. Lifting device; 71. Motor; 72. Drum fixing assembly; 73. Drum assembly; 74. Sprocket; 75. Screw; 76. Fixed base; 77. Guide rail; 78. Mobile bracket; 8. Steel structure; 9. Steel column assembly; 10. Steel cable fixing assembly; 11. Rotating guide pulley assembly; 12. Lifting wire rope; 13. Traveling wire rope; 14. Circulating wire rope; 15. Cable and / or optical fiber; 16. Traveling device. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, a multi-cable large-span top-mobile power supply aerial facility system is provided, comprising a steel column assembly 9, an auxiliary support assembly, a load-bearing and power supply steel cable 4, a steel cable fixing assembly 10, a rotating guide pulley assembly 11, a running trolley 5, a spreader assembly 6, a lifting wire rope 12, a traveling wire rope 13, a circulating wire rope 14, a cable tug assembly, a cable tug head 3, a drive assembly, and a cable drive device;

[0034] A steel column assembly 9 is provided on each of the steel structures 8 on opposite sides of the top of the performance venue. The two ends of the load-bearing and power supply steel cable 4 are respectively passed over the steel cable support pulley assembly provided on the top of the steel column assembly 9 and are fixedly connected to the steel structure 8 via the steel cable fixing assembly 10;

[0035] The cable tug group, the cable tug head 3 and the running trolley 5 are sequentially suspended on the load-bearing and power supply cable 4 at intervals. The cable tug group is connected to the cable tug head 3, and the cable tug head 3 is connected to the running trolley 5. A sling assembly 6 is provided below the running trolley 5.

[0036] The side of the steel column assembly 9 is provided with an auxiliary support assembly fixedly connected thereto, and the top of the auxiliary support assembly is provided with a wire rope support pulley assembly. The lower end of the steel column assembly 9 and the steel structure 8 near it are provided with a rotating guide pulley assembly 11. The sling assembly 6 and the running trolley 5 are connected with a lifting wire rope 12, and the two ends of the lifting wire rope 12 are respectively passed around the rotating guide pulley assembly 11 on the corresponding side and are fixedly connected to the driving assembly and the rotating lifting ring on the steel column assembly 9; the running trolley 5 is fixedly connected with a walking wire rope 13, and the two ends of the walking wire rope 13 are respectively passed around the support pulley assembly on the corresponding side and are connected to the driving assembly;

[0037] One end of the circulating steel wire rope 14 is connected to the cable driving device, and the other end of the circulating steel wire rope 14 is connected to the cable driving device after passing through the cable tug group and the cable tug head 3 in sequence; the cable and / or optical fiber 15 is laid on the cable tug group and the cable tug head 3.

[0038] In this embodiment, assuming that the performance venue is the Bird's Nest 1, the steel column assemblies 9 are installed on the steel structures 8 on opposite sides of the top of the Bird's Nest 1; the two ends of the load-bearing steel cable 41 are supported by the steel column assemblies 9 and then fixed to the steel structures 8 on opposite sides of the Bird's Nest 1 through the steel cable fixing assemblies 10, so that the load-bearing steel cable 41 is suspended above the Bird's Nest 1.

[0039] In this embodiment, the steel cable fixing assembly 10 includes a steel cable fixing head, a steel cable anchor and a real-time tension monitoring device. The steel cable fixing head is fixedly connected to the steel cable anchor through a pin shaft, and the steel cable anchor is fixedly connected to the steel structure 8; the real-time tension monitoring device is connected to the load-bearing steel cable 41 and the cable steel cable 42.

[0040] The steel cable support pulley assembly is fixed on the supporting column. The steel cable support pulley assembly is subjected to large forces and is used in a low-temperature environment. Therefore, low-temperature resistant materials are used when selecting materials. At the same time, the steel cable support pulley assembly is provided with a steel cable rope roller and a steel cable anti-jumping device to prevent the load-bearing and power supply steel cable 4 from jumping to the outside of the steel cable support pulley assembly and into the side gap between the steel cable support pulley assembly and the steel cable support pulley seat when the running trolley 5 runs on the load-bearing and power supply steel cable 4; the end of the load-bearing and power supply steel cable 4 is fixed by a steel cable fixing assembly 10, and the steel cable fixing assembly 10 is fixed to the steel cable anchor by a pin shaft, and the steel cable anchor is fixed to the steel structure 8 of the bird's nest 1. Due to the structure of the Bird's Nest 1 and the influence of temperature, wind volume, rain and snow, and the load of the hanging props, the deflection of the load-bearing steel cables 41 and the cable steel cables 42 will change, and the forces acting on the load-bearing steel cables 41 and the cable steel cables 42 will change. By using a real-time tension monitoring device, the tension of the load-bearing and power supply cables 4 can be monitored in real time. When the tension exceeds 120% of the design, an alarm will be triggered to implement overload protection and ensure the safety and reliability of the equipment.

[0041] Appropriate spacing is left between the various components in the system, so that the wire ropes of the running trolleys 5 will not be entangled on the load-bearing steel cables 41 with a slope, and adjacent running trolleys 5 will not collide with each other.

[0042] like Figures 3 to 7 As shown, in this embodiment, the load-bearing and power supply cables 4 include parallel and spaced load-bearing cables 41 and cable cables 42. At least one load-bearing cable 41 is provided on each side of the cable cables 42. The trolley 5 is suspended on the load-bearing cables 41 and the cable cables 42, and the cable pulley assembly and the cable pulley head 3 are suspended on the cable cables 42. The models of the load-bearing cables 41 and the cable cables 42 are selected based on actual conditions using discrete simulation technology. Furthermore, by performing multi-operating condition analysis on the structural design of the trolley, the problem of statically indeterminate multi-cable support technology is addressed. The number of load-bearing cables 41 provided can also be selected based on actual conditions.

[0043] The sling assembly 6 includes a lifting connection seat 61, a sling arranged on the lower surface of the lifting connection seat 61, and a rotating lifting pulley 62 arranged at both ends of the lifting connection seat 61; the running trolley 5 includes a walking connection seat 51, a wire rope fixing seat arranged on the walking connection seat 51, a walking pulley 52 and a walking guide wheel 54 arranged on the top of the walking connection seat 51, and a lifting guide wheel 53 and a rotating guide wheel arranged at both ends of the walking connection seat 51; one end of the lifting wire rope 12 is connected to the driving assembly, and the other end first passes through the rotating guide pulley assembly 11 on the steel column assembly 9, the lifting guide wheel 53 on one side of the running trolley 5 and the rotating guide wheel on the sling assembly 6 in turn. After turning the lifting pulley 62, it passes around the lifting guide wheel 53 on the other side of the running trolley 5 in turn and is fixedly connected to the rotating lifting ring on the steel column assembly 9; the walking wire rope 13 is fixedly connected to the wire rope fixing seat, and the two ends of the walking wire rope 13 pass around the rotating guide wheels at the corresponding ends on the running trolley 5, and then pass around the rotating guide pulley assembly 11 and the wire rope support pulley assembly on the steel column assembly 9 and the tensioning wheel on the counterweight guide rail set on one side of the steel column assembly 9, and then are connected to the driving assembly; the load-bearing steel cable 41 passes around the walking pulley 52, the cable steel cable 42 passes around the walking guide wheel 54, and the walking wire rope 13 is fixedly connected to the walking connecting seat 51.

[0044] In this embodiment, there are four load-bearing cables 41 and one cable cable 42; the cable cable 42 is located in the center, with two load-bearing cables 41 located on either side. The travel connection base 51 of the trolley 5 is rectangular in structure, with a set of travel pulleys 52 and a set of lifting guide wheels 53 located at each corner. A set of travel guide wheels 54 is located in the middle of each of the two opposing sides in the direction of travel. The load-bearing cables 41 on the corresponding side pass over the corresponding travel pulleys 52, and the cable cables 42 pass over the travel guide wheels 54, suspending the trolley 5 from the load-bearing cables 41.

[0045] Similarly, in order to ensure the smooth lifting of the sling assembly 6, the lifting connecting seat 61 of the sling assembly 6 is also set to a rectangle, and a group of rotating lifting pulleys 62 are respectively set at the four corners of the lifting connecting seat 61; the system includes multiple lifting steel ropes 12 located on opposite sides of the running trolley 5, and one end of the lifting steel rope 12 on the corresponding side is connected to the driving assembly, and the other end passes through the lifting guide wheel 53 at one corner of the walking connecting seat 51, the rotating lifting pulley 62 on one corner of the lifting connecting seat 61, and then is connected to the pulley of the sling assembly 6, and then passes through the rotating lifting pulley 62 on the other corner of the same side, and then passes through the lifting guide wheel 53 on the other corner of the same side and is fixedly connected to the rotating lifting ring on the steel column assembly 9.

[0046] There are four traveling steel ropes 13 , which are fixedly connected to the steel rope fixing seats on the traveling connecting seat 51 , and have both ends connected to the driving components respectively.

[0047] The rectangular traveling connecting seat 51 and the lifting connecting seat 61 can not only provide sufficient supporting force, but also enable the running trolley 5 to run smoothly on the sloped load-bearing cable 41 without shaking or swaying.

[0048] The sling in the sling assembly 6 is used to connect with the prop; the vertical distance between the sling and the running trolley 5 is changed by the lifting wire rope 12, so that the prop can be lifted and lowered in the vertical direction; the position of the running trolley 5 on the load-bearing steel cable 41 is changed by the walking wire rope 13, so that the prop can be moved in the horizontal direction.

[0049] The lifting wire rope 12 may swing slightly in harsh environments. The angle can be adjusted by rotating the lifting pulley 62 to ensure that the lifting wire rope 12 is still at zero deflection. The walking wire rope 13 is tightened by the tensioning device and fixed to the running trolley 5 through the pressure plate 28 to realize the horizontal movement of the prop.

[0050] The number of running trolleys 5 can be selected according to actual conditions. When multiple running trolleys 5 are set up, a suitable distance is left between each running trolley 5 and the connected sling assembly 6 to ensure that the steel wire ropes of the running trolleys 5 will not be entangled. Rope blocking assemblies are installed between the running trolleys 5. When multiple running trolleys 5 run synchronously to the edge of the steel column assembly 9, due to the slope of the load-bearing steel cable 41, the heights of the multiple running trolleys 5 are inconsistent, and the lifting and walking steel wire ropes 13 will hit the running trolleys 5. The height of the walking steel wire rope 13 can be adjusted by the rope blocking assembly to avoid these situations. When there are multiple trolleys, the running trolley 5 reads the position through the encoder, and the control system sets interlocking. When the distance between the running trolleys 5 is within the interlocking data, deceleration and parking protection will appear. When the control system fails, the anti-collision assembly can be used to ensure a safe distance between the running trolleys 5.

[0051] like Figure 5 and Figure 6 As shown, in this embodiment, the drive assembly includes a lifting device 7 and a traveling device 16. The aerial facility system includes four traveling wire ropes 13 and four lifting wire ropes 12. The four lifting wire ropes 12 are each connected to a set of lifting devices 7, meaning that one lifting wire rope 12 is driven by one set of lifting devices 7. The four traveling wire ropes 13 are connected to the same set of traveling devices 16, meaning that all four traveling wire ropes 13 are driven by one set of traveling devices 16. Both the traveling device 16 and the lifting device 7 are driven by a winch. The cable drive device uses a guide pulley for travel and a torque motor to drive the cable tug assembly and cable tug head.

[0052] The corresponding guide wheels and pulleys on the running trolley 5 and the sling assembly 6 match the number of the lifting wire ropes 12 and the walking wire ropes 13, further ensuring the smooth operation of the sling assembly 6 of the running trolley 5.

[0053] The walking device 16 and the lifting device 7 both include a fixed base 76, a self-arranging rope assembly, a drum assembly 73, a drum fixing assembly 72, a sprocket 74, a drive chain and a motor assembly 71; the upper surface of the fixed base 76 is provided with a guide rail 77 extending along its length, and the guide rail 77 is provided with a movable bracket 78 that can move along it; the drum fixing assembly 72 is horizontally arranged above the fixed base 76, and its two ends are fixedly connected to the movable bracket 78, and the drum assembly 73 is coaxially arranged on the drum fixing assembly. The interior of the fixed assembly 72; two motor assemblies 71 are provided on the reel fixing assembly 72, and the two motor assemblies 71 are respectively connected to the two ends of the reel assembly 73; the self-arranging rope assembly includes a screw 75 and a nut, one end of the screw 75 is connected to the fixed base 76, the nut is sleeved on the screw 75, the nut is fixedly connected to the reel fixing member and is arranged to move freely, and a sprocket 74 is provided at one end of the screw 75 and the reel assembly 73, respectively, and the drive chain is engaged with the two sprockets 74;

[0054] The drum assembly 73 includes a rotating shaft, a sleeve, a rope stop roller and a drum; a rotating shaft is provided at both ends of the drum, the rotating shaft is connected to the sleeve via a key, and the sleeve is connected to the traveling drum fixing assembly 72 via a bearing; a rope stop roller is provided at both ends of the drum;

[0055] Each of the lifting wire ropes 12 is wound around the drum of the corresponding lifting device 7, and both ends of each of the traveling wire ropes 13 are wound around the drum of the traveling device 16 in a retracted and released manner.

[0056] The pitch of the lifting wire rope 12 wound on the drum of the lifting device 7 and the pitch of the lead screw 75 of the lifting device 7 are adjusted by the number of sprocket teeth on the drum and the number of sprocket teeth on the lead screw 75, and finally the two are equal; the pitch of the walking wire rope 13 wound on the drum of the walking device 16 and the pitch of the lead screw 75 of the walking device 16 are adjusted by the number of sprocket teeth on the drum and the number of sprocket teeth on the lead screw 75, and finally the two are equal.

[0057] The working process of the lifting device 7 is as follows: the motor 71 of the lifting device 7 is powered on and switched on, driving the drum assembly 73 to rotate, the lifting wire rope 12 is wound and tightened, the lifting wire rope 12 drags the sling assembly 6 to drive the prop to move toward the direction close to the running trolley 5, the rotation of the drum assembly 73 drives the sprocket 74 to rotate, the rotation of the sprocket 74 causes the nut 75 to move on the screw, so that the drum assembly 73 moves on the guide rail 77 with the moving bracket 78 until it is in place; the motor 71 is powered on and switched on and reversed, as the lifting wire rope 12 stretches, the distance between the sling assembly 6 and the running trolley 5 gradually increases, the sling assembly 6 gradually lowers the prop until it is in place, and the winch returns to its original position.

[0058] The working process of the walking device 16 is as follows: the motor 71 of the walking device 16 is powered on and switched on, driving the drum assembly 73 to rotate, the two ends of the walking wire rope 13 are retracted and released, and the walking wire rope 13 drags the running trolley 5 to move along the load-bearing wire 41 to one side, and the rotation of the drum assembly 73 drives the sprocket 74 to rotate, and the rotation of the sprocket 74 causes the nut to move on the screw 75, so that the drum assembly 73 moves on the guide rail 77 with the moving bracket 78 until it is in place; the motor 71 is powered on and reversed, the two ends of the walking wire rope 13 are released and retracted, and the walking wire rope 13 drags the running trolley 5 to move along the load-bearing wire 41 to the other side until it is in place, and the winch returns to its original position.

[0059] like Figures 7 to 9As shown, in this embodiment, the cable tug group includes a plurality of cable tugs 2 suspended at intervals on the cable steel rope 42, and two adjacent cable tugs 2 are connected by a chain 32. A cable tug 2 located at the end is connected to the cable tug head 3 via the chain 32; the cable tug head 3 is connected to the running trolley 5 via the chain 32.

[0060] The cable tug 2 includes a first bracket 21, a baffle 22, a first pulley group, a second pulley group, a second bracket 26 and a cable support 27; a first pulley group is respectively provided at both ends of one side of the first bracket 21, a baffle 22 is respectively connected at both ends of the other side of the first bracket 21, a second pulley group is respectively provided on the opposite sides of the baffle 22, and a chain connecting member 33 is provided on the baffle 22; a second bracket 26 perpendicular to the first bracket 21 is connected to the middle part of the first bracket 21, the second bracket 26 is connected to the cable support 27, and the second bracket 26 is provided on the A pressure plate 28 is provided, and the cable and / or optical fiber 15 is stretched on the cable support 27 and compressed by the pressure plate 28; the chain connector 33 is connected to the chain connector 33 on the adjacent cable tug 2 via a chain 32; the first pulley group is connected to the cable steel rope 42, and the circulating steel wire rope extends from the cable drive device to pass around the rotating guide pulley assembly 11 on the steel structure, then passes around the two second pulley groups on one side, and then turns through the cable tug head to pass around the two second pulley groups on the other side, and finally passes around the rotating guide pulley assembly 11 on the steel structure and is fixed to the cable drive device.

[0061] The cable tug head 3 includes a first bracket 21, a first baffle 22, a first pulley group, a diverting pulley 31, a second bracket 26 and a cable support 27; a first pulley group is respectively provided at both ends of one side of the first bracket 21, and a baffle 22 is respectively connected at both ends of the other side of the first bracket 21, and a chain connecting member 33 is provided on the baffle 22, and a second pulley group is respectively provided on the opposite sides of one baffle 22, and a diverting pulley 31 is provided on the other baffle 22; a second bracket 26 perpendicular to it is connected to the middle part of the first bracket 21, and the second bracket 26 is connected to the cable support 27, and a pressure plate 28 is provided on the second bracket 26, and the cable and / or optical fiber 15 is stretched on the cable support 27 and is pressed by the pressure plate 28; the first pulley group is connected to the cable steel rope 42, and the circulating wire rope 14 passes around the second pulley group on one side and then deflects through the diverting pulley 31 and passes around a second pulley group on the other side.

[0062] The first pulley assembly includes suspension pulleys 23 arranged adjacent to each other in the upper and lower directions, with the cable rope 42 passing through the gap between the two suspension pulleys 23. The second pulley assembly includes a large pulley 24 and a small pulley 25 arranged adjacent to each other in the upper and lower directions, with the chain connector 33 located below the small pulley 25. The circulating steel wire rope 14 passes through the gap between the large pulley 24 and the small pulley 25. The function of the first pulley assembly is to suspend the cable tug 2 and the cable tug head 3 on the cable rope 42. The function of the second pulley assembly is to allow the circulating steel wire rope 14 to drive the cable tug 2 and the cable tug head 3 to reciprocate along the cable rope 42, thereby driving the cable and / or optical fiber 1510 for power supply and / or signal transmission. The first and second pulley assemblies automatically adjust their angles via a rotating shaft, allowing the cable tug head 3 and the cable tug assembly to operate smoothly on a sloped steel rope.

[0063] In this embodiment, after the cable steel cable 42 is supported by the steel column assembly 9, both ends are fixed to the steel structure 8 of the performance venue through the steel cable fixing assembly 10 to form a supporting cable structure, and all the cable tugs 2 and the cable tug head 3 are suspended on the cable steel cable 42 through the first pulley group; after one end of the circulating wire rope 14 comes out of the cable driving device, it passes through the gap between the two groups of large pulleys 24 and the small pulley 25 on one side of the cable tug 2, and then is turned by the steering pulley 31 on the cable tug head 3, passes through the gap between the two groups of large pulleys 24 and the small pulley 25 on the other side of the cable tug 2 and returns to the cable driving device to complete the cycle, reaching the cable tug 2 The purpose of horizontal movement of the cable tug head 3 is to connect the two adjacent cable tugs 2 with a chain 32 through a chain connector 33, thereby limiting the maximum spacing between the cable tugs 2 and ensuring that the cables and optical fibers between the pressure plate 28 and the cable support 27 are not subjected to tension on the cable tug 2 when the cable tug 2 moves toward the center of the performance venue; the cable tug head 3 is connected to the running trolley 5 to form a rigid integral structure, and the heavy self-weight of the running trolley 5 is utilized to avoid the possible overturning of the cable tug head 3; the cable drive device adopts a follow-up control principle and moves with the running trolley 5 to solve various risks caused by the cable tug head 3 and the wire trolley being out of sync.

[0064] The working process of the cable drive device is as follows: the motor 71 of the cable drive device is powered on, driving the drum assembly 73 to rotate, and the two ends of the circulating wire rope 14 are wound up. The circulating wire rope 14 drags the cable tug group and the cable tug head 3 to move along the cable rope 42 to one side. The rotation of the drum assembly 73 drives the sprocket 74 to rotate. The rotation of the sprocket 74 causes the nut to move on the screw 75, so that the drum assembly 73 moves on the guide rail 77 with the movable bracket 78 until it is in place; the motor 71 is powered on and reversed, and the two ends of the circulating wire rope 14 are released. The circulating wire rope 14 drags the cable tug 2 and the cable tug head 3 to move along the cable rope 42 to the other side until they are in place, and the winch returns to its original position.

[0065] By adopting the above technical solution disclosed in the present invention, the following beneficial effects are obtained:

[0066] The present invention provides a multi-cable, long-span, top-mounted, mobile power supply aerial facility system. The system utilizes a dual-motor, self-aligning rope structure for both lifting and traveling, enabling fast, long-range prop and scene switching. The rational arrangement of the number of trolleys and the lifting and traveling points allows one or more trolleys to automatically adjust their angles and operate smoothly on the load-bearing and power-supply cables. The swinging pulleys at each trolley's suspension point enable the system to support complex prop rotations. The trolley's horizontal movement is driven by a set of traveling devices, with the lifting and traveling cables backed up in pairs, achieving mechanical redundancy and synchronized operation. As the trolley moves, the cable tug moves with it, and the cables and optical fibers attached to the trolleys follow the trolley's movement. Sufficient margin is left for the cables and optical fibers to ensure coordinated operation with the trolley, enabling efficient long-distance transmission of high- and low-voltage power and optical signals over the long-span cables. The dual-motor structure enhances equipment reliability. If the main reduction motor fails, the backup reduction motor can be quickly switched to, achieving "zero-error" operation. The system has a fast running speed, high degree of automation and high working efficiency, which meets the functional use of the theater.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multi-cable, large-span, top-moving power supply aerial facility system, characterized by: Including steel column assembly, auxiliary support assembly, load-bearing and power supply steel cables, steel cable fixing assembly, rotating guide pulley assembly, running trolley, spreader assembly, lifting wire rope, walking wire rope, circulating wire rope, cable tug assembly, cable tug head, drive assembly, cable drive device; A steel column assembly is provided on each of the steel structures on opposite sides of the top of the performance venue. The two ends of the load-bearing and power supply steel cables are respectively passed over the steel cable support pulley assemblies provided on the top of the steel column assemblies and are fixedly connected to the steel structure via the steel cable fixing assemblies. The cable tug group, the cable tug head and the running trolley are sequentially suspended on the load-bearing and power supply cables at intervals, the cable tug group is connected to the cable tug head, the cable tug head is connected to the running trolley, and a sling assembly is provided under the running trolley; The side of the steel column assembly is provided with an auxiliary support assembly fixedly connected to it, and the top of the auxiliary support assembly is provided with a wire rope supporting pulley assembly, and the lower end of the steel column assembly and the steel structure near it are provided with a rotating guide pulley assembly, and the lifting wire rope is connected to the sling assembly and the running trolley, and the two ends of the lifting wire rope are respectively fixedly connected to the driving assembly and the rotating lifting ring on the steel column assembly after passing through the rotating guide pulley assembly on the corresponding side; the running trolley is fixedly connected to the walking wire rope, and the two ends of the walking wire rope are respectively connected to the driving assembly after passing through the wire rope supporting pulley assembly on the corresponding side; One end of the circulating steel wire rope is connected to the cable driving device, and the other end of the circulating steel wire rope is connected to the cable driving device after passing through the cable tug group and the cable tug head in sequence; the cable and / or optical fiber is laid on the cable tug group and the cable tug head; The load-bearing and power supply steel cables include load-bearing steel cables and cable steel cables that are arranged in parallel and at intervals, at least one load-bearing steel cable is provided on each side of the cable steel cables, the running trolley is suspended on the load-bearing steel cables and the cable steel cables, and the cable tug assembly and the cable tug head are suspended on the cable steel cables; The sling assembly includes a lifting connection seat, a sling arranged on the lower surface of the lifting connection seat, and rotating lifting pulleys arranged at both ends of the lifting connection seat; the running trolley includes a traveling connection seat, a wire rope fixing seat arranged on the traveling connection seat, a traveling pulley and a traveling guide wheel arranged on the top of the traveling connection seat, and a lifting guide wheel and a rotating guide wheel arranged at both ends of the traveling connection seat; The four lifting steel ropes are respectively connected to a set of lifting devices, that is, one lifting steel rope is driven by a set of lifting devices, and the four walking steel ropes are connected to the same set of walking devices, that is, the four walking steel ropes are driven by a set of walking devices.

2. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 1, characterized in that: The models of the load-bearing steel cables and the cable steel cables are calculated and selected using discrete simulation technology. The load-bearing steel cables and the cable steel cables are connected with real-time tension detection devices, which detect the tension of the load-bearing steel cables and the cable steel cables in real time. When the tension exceeds 120% of the preset tension, an alarm is issued to achieve overload protection.

3. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 2, characterized in that: One end of the lifting wire rope is connected to the driving assembly, and the other end first passes through the rotating guide pulley assembly on the steel column assembly, the lifting guide wheel on one side of the running trolley and the rotating lifting pulley on the sling assembly in sequence, and then passes through the lifting guide wheel on the other side of the running trolley in sequence and is fixedly connected to the rotating lifting ring on the steel column assembly; the walking wire rope is fixedly connected to the wire rope fixing seat, and the two ends of the walking wire rope respectively pass through the rotating guide wheels at the corresponding ends on the running trolley, and then pass through the rotating guide pulley assembly and the wire rope support pulley assembly on the steel column assembly and the tensioning wheel on the counterweight guide rail set on one side of the steel column assembly, and then are connected to the driving assembly; the load-bearing steel cable passes through the walking pulley, the cable steel cable passes through the walking guide wheel, and the walking wire rope is fixedly connected to the walking connecting seat.

4. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 2, characterized in that: Both the traveling device and the lifting device are driven by a winch to achieve movement.

5. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 4, characterized in that: Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring, and castor is arranged on the pin of base bottom four, to carry mobile handler location. The reel assembly includes a rotating shaft, a sleeve, a rope-stopping roller and a reel; a rotating shaft is provided at both ends of the reel, the rotating shaft is connected to the sleeve via a key, and the sleeve is connected to the traveling reel fixing assembly via a bearing; a rope-stopping roller is provided at both ends of the reel; Each of the lifting wire ropes is wound around the drum of each corresponding lifting device, and both ends of each of the traveling wire ropes are wound around the drum of the traveling device in an interval of one retracted and one released.

6. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 5, characterized in that: The pitch of the lifting wire rope wound on the drum of the lifting device and the pitch of the lead screw of the lifting device are adjusted by the number of sprocket teeth on the drum and the number of sprocket teeth on the lead screw, and finally the two are equal; the pitch of the traveling wire rope wound on the drum of the traveling device and the pitch of the lead screw of the traveling device are adjusted by the number of sprocket teeth on the drum and the number of sprocket teeth on the lead screw, and finally the two are equal.

7. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 6, characterized in that: The cable tug group includes multiple cable tugs suspended on the cable steel rope at intervals, and adjacent cable tugs are connected by chains. A cable tug located at the end is connected to the cable tug head by a chain; the cable tug head is connected to the running trolley by a chain.

8. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 7, characterized in that: The cable tug comprises a first bracket, a baffle, a first pulley group, a second pulley group, a second bracket and a cable support; a first pulley group is respectively provided at each end of one side of the first bracket, and a baffle is respectively connected to the two ends of the other side of the first bracket. A second pulley group is respectively provided on the opposite sides of the baffle, and a chain connecting piece is provided on the baffle; the middle of the first bracket is connected to a second bracket perpendicular to it, the second bracket is connected to the cable support, and a pressure plate is provided on the second bracket, and the cable and / or optical fiber is stretched on the cable support and pressed by the pressure plate; the chain connecting piece is connected to the chain connecting piece on the cable tug adjacent to it through a chain; the first pulley group is connected to the cable steel rope, and the circulating steel wire rope extends from the cable driving device to bypass the rotating guide pulley assembly on the steel structure, and then bypasses the two second pulley groups on one side and then turns through the cable tug head to bypass the two second pulley groups on the other side, and finally bypasses the rotating guide pulley assembly on the steel structure and is fixed to the cable driving device.

9. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 8, characterized in that: The cable tug head includes a first bracket, a first baffle, a first pulley group, a steering pulley, a second bracket and a cable support; a first pulley group is respectively provided at both ends of one side of the first bracket, and a baffle is respectively connected to the two ends of the other side of the first bracket, and a chain connecting piece is provided on the baffle, and a second pulley group is respectively provided on the opposite sides of one baffle, and a steering pulley is provided on the other baffle; a second bracket perpendicular to it is connected to the middle part of the first bracket, the second bracket is connected to the cable support, and a pressure plate is provided on the second bracket, and the cable and / or optical fiber is stretched on the cable support and pressed by the pressure plate; the first pulley group is connected to the cable steel rope, and the circulating steel wire rope passes around the second pulley group on one side and then deflects through the steering pulley and passes around a second pulley group on the other side.

10. The multi-cable, large-span, top-moving power supply aerial facility system according to claim 9, characterized in that: The first pulley group includes suspended pulleys arranged adjacent to each other up and down, and the cable steel rope passes through the gap between the two suspended pulleys; the second pulley group includes a large pulley and a small pulley arranged adjacent to each other up and down, and the chain connecting member is located below the small pulley; the circulating steel wire rope passes through the gap between the large pulley and the small pulley; the first pulley group and the second pulley group automatically adjust the angle through the rotating shaft, so that the cable tug head and the cable tug group can run smoothly on the sloped steel cable.

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