A crane for stringing wires

Abstract

The present invention discloses a crane for stringing wires, and relates to the technical field of stringing wire equipment. The present invention comprises a tractor, and a first boom, a second boom, a first adjusting device for adjusting the angle of the first boom, and a second adjusting device for adjusting the angle of the second boom are arranged on the tractor. A first platform is arranged at the top of the first boom, and a second platform is arranged at the top of the second boom. A first track is arranged at the bottom of the first platform, and a second track is arranged at the bottom of the second platform. A third track and a docking device are arranged on the second track, and the docking device is used to drive the third track to dock with the first track. When the third track docks with the first track, the first track, the second track and the third track are assembled into a hoisting track, and a mobile vehicle is arranged on the hoisting track, and a stringing wire construction pulley is arranged at the bottom of the mobile vehicle. The present invention can improve the stability of the spanning frame assembly and improve the flexibility of stringing wires.

Description

Technical Field

[0001] The invention relates to the technical field of wire-string equipment, in particular to a wire-string crane. Background Art

[0002] Overhead transmission cables refer to transmission cables that are fixed on poles and towers for transmitting electrical energy.

[0003] The line construction of overhead transmission cables includes: pole tower foundation construction, pole tower assembly construction, line construction, grounding engineering construction, etc.

[0004] During the line construction, due to the influence of terrain, topography and line channels, it is necessary to cross houses, roads, railways, docks, bridges, existing distribution lines and other facilities.

[0005] When performing a crossing operation, it is necessary to shut down the distribution lines being crossed and block rail transit such as roads and railways, which brings great inconvenience to people's production and life. Therefore, it is necessary to develop construction equipment that can be quickly transferred to reduce the impact on people's production and life.

[0006] In this regard, the patent with publication number CN112209314A discloses a "self-propelled fast-crossing hoisting integrated machine", see Fig.23 The patent includes chassis 01, chassis 01 is equipped with walking system 02, chassis 01 is equipped with slewing support 03, slewing support 03 is equipped with turntable 04, turntable 04 is equipped with boom 05 and luffing cylinder 06, luffing cylinder 06 is used to adjust the angle of boom 05, top of boom 05 is equipped with crossing frame assembly 07 and hook 08, and back of boom 05 is equipped with ladder 09. At the construction site, construction workers can climb to the top of boom 05 through ladder 09 to complete the operation of crossing transmission cables. After the construction is completed, walking system 02 can drive the entire equipment to move quickly.

[0007] However, in the above patent, the crossing frame assembly is supported by only one boom, which reduces the stability of the crossing frame assembly. In addition, the position of the installed power transmission cable cannot be moved horizontally along the crossing frame assembly, which makes it inconvenient to adjust the position of the power transmission cable and reduces the flexibility of the cable laying.

[0008] Therefore, how to improve the stability of the spanning frame assembly and increase the flexibility of the wiring is a technical problem that needs to be solved at present. Summary of the invention

[0009] The present invention aims at solving the above-mentioned deficiencies in the prior art and provides a crane for stringing cables. The present invention can improve the stability of the spanning frame assembly and the flexibility of stringing cables.

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] A wire-laying crane comprises a tractor, a boom, a boom adjustment device, and a spanning frame assembly.

[0012] The boom comprises a first boom and a second boom, and the first boom and the second boom are both arranged on the tractor.

[0013] The boom adjustment device comprises a first adjustment device and a second adjustment device, wherein the first adjustment device is used to adjust the angle of the first boom, and the second adjustment device is used to adjust the angle of the second boom.

[0014] The spanning frame assembly includes a first platform and a second platform, wherein the first platform is arranged at the top end of the first boom, and the second platform is arranged at the top end of the second boom.

[0015] A first track is provided at the bottom of the first platform, a second track is provided at the bottom of the second platform, a third track and a docking device are provided on the second track, the docking device is used to drive the third track to dock with the first track, when the third track is docked with the first track, the first track, the second track and the third track are assembled into a hoisting track, a mobile vehicle is provided on the hoisting track, and a wire construction pulley is provided at the bottom of the mobile vehicle.

[0016] Furthermore, a third adjusting device is provided on the upper part of the first boom, and the third adjusting device is used to adjust the angle of the first platform. A fourth adjusting device is provided on the upper part of the second boom, and the fourth adjusting device is used to adjust the angle of the second platform.

[0017] Furthermore, the top surface of the first track is provided with a first plane and a second plane, and the first plane is higher than the second plane.

[0018] A guide rail is provided on the top surface of the second track, the top surface of the second track is flush with the second plane, and the top surface of the guide rail is flush with the first plane.

[0019] The top surface of the third track is flush with the height of the first plane, a guide hole is provided on the third track, the guide rail and the guide hole are slidably matched, and the bottom of the third track is slidably matched with the second plane and the top surface of the second track.

[0020] Furthermore, a docking hole is provided on the second rail, the width of the docking hole is greater than the width of the guide hole, a docking seat is provided in the docking hole, the top of the docking seat is connected to the bottom of the third rail, and the bottom of the second rail is provided with the docking device, which includes a rodless cylinder, and the top of the piston of the rodless cylinder is connected to the bottom of the docking seat.

[0021] Furthermore, the mobile vehicle includes a mobile shell, a mobile motor is arranged inside the mobile shell, a turbine is arranged on the output shaft of the mobile motor, a worm is arranged above the turbine, both ends of the worm pass through the mobile shell, both ends of the worm are rotatably connected to the mobile shell, and both ends of the worm passing through the mobile shell are provided with mobile wheels, and the mobile wheels run on the first plane, the top surface of the third track, and the top surface of the guide rail.

[0022] Furthermore, the side surface of the first track, the side surface of the second track, and the side surface of the third track are flush.

[0023] The side of the movable housing is provided with a guide shaft, and the guide shaft is provided with a guide wheel, and the guide wheel rolls in contact with the side of the first track, the side of the second track, and the side of the third track.

[0024] The first track is provided with a first limiting telescopic rod at one end close to the second track, and the second track is provided with a second limiting telescopic rod at one end close to the first track. The extended first limiting telescopic rod and the extended second limiting telescopic rod are both used to prevent the guide wheel from moving.

[0025] Furthermore, a first railing is provided on the first platform, and a second railing is provided on the second platform.

[0026] The first platform is provided with a first rotating shaft at one end close to the second platform, the first rotating shaft horizontally passes through the first railing, the first rotating shaft is provided with a first baffle and a gear, a through hole is provided on the first platform, the lower part of the gear is exposed from the through hole, the top surface of the third track is provided with a rack, and the rack is meshed with the lower part of the gear,

[0027] The first rotating shaft is provided with a ratchet at the end portion that passes through the first railing, and a pawl is provided on the side of the first platform. The lower end of the pawl is rotatably connected to the side of the first platform, and the upper end of the pawl is connected to the side of the first platform through a reset elastic member, and the reset elastic member is used to reset the pawl after counterclockwise swinging. The side of the first platform is also provided with an abutting telescopic rod, and the extended abutting telescopic rod is used to abut against the side wall of the pawl to prevent the pawl from rotating clockwise.

[0028] When the third track slides on the second plane and approaches the first plane, the rack drives the gear to rotate clockwise, the gear drives the first shaft to rotate clockwise, and the first shaft drives the ratchet and the first baffle to rotate clockwise.

[0029] When the third track abuts against the vertical transition surface between the first plane and the second plane, the third track is docked with the first track, the first baffle is turned to a horizontal state, and the first baffle in the horizontal state overlaps the second platform.

[0030] Furthermore, the second platform is provided with a second rotating shaft and a hollow seat at one end close to the first platform, the second rotating shaft is rotatably connected to the second platform, the upper part of the second rotating shaft is provided with a second baffle, the lower part of the second rotating shaft is provided with a spiral groove, a pressing block and a pressing elastic member are provided inside the hollow seat, the pressing block is vertically slidably matched with the inside of the hollow seat, the pressing elastic member is used to lift the pressing block upward, the side wall of the hollow seat is provided with a first opening and a second opening, a pressing rod is provided on the side of the pressing block exposed from the first opening, the pressing rod is matched with the first baffle, a pin is provided on the side of the pressing block exposed from the second opening, the pin is matched with the spiral groove,

[0031] When the first baffle rotates clockwise, the first baffle gradually presses the pressing rod, and the pressing rod drives the pressing block to move downward to overcome the elastic force of the pressing elastic member, and the pressing block drives the pin rod to move downward, and the pin rod pushes the lower groove wall of the spiral groove, so that the second rotating shaft drives the second baffle to rotate, and the second baffle gradually rotates to the upper side of the first baffle.

[0032] Furthermore, the first railing is provided with a first electromagnetic suction cup, and the second railing is provided with a second electromagnetic suction cup.

[0033] When the first baffle is rotated to a vertical state, the first baffle blocks one end of the first platform close to the second platform, and the first electromagnetic chuck attracts the first baffle.

[0034] When the second baffle blocks an end of the second platform close to the first platform, the second electromagnetic chuck attracts the second baffle.

[0035] Furthermore, it also includes a control module, and the docking device, the abutting telescopic rod, the first electromagnetic suction cup, and the second electromagnetic suction cup are all electrically connected to the control module.

[0036] When the control module receives the docking command, the docking device drives the third track to dock with the first track, the first electromagnetic chuck and the second electromagnetic chuck are powered off, and the abutting telescopic rod is extended to abut against the side of the pawl.

[0037] When the control module receives the command to release the docking, the docking device drives the third track to leave the first track, and the first electromagnetic chuck and the second electromagnetic chuck are energized to abut against the side of the telescopic rod that is shortened and leaves the pawl.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. In the present invention, when the docking device drives the third rail to dock with the first rail, not only the first rail and the second rail and the third rail are connected, but also the first platform and the second platform are connected. At this time, the crossing frame assembly including the first platform and the second platform can be jointly supported by the first boom and the second boom, thereby improving the stability of the crossing frame assembly. In addition, the mobile vehicle can drive the wire construction pulley to move along the first rail, the second rail and the third rail, thereby adjusting the position of the transmission cable and improving the flexibility of the wire laying.

[0040] 2. By setting the first plane and the second plane on the first track, setting the guide rail on the second track, and setting the guide hole on the third track, the first plane of the first track, the top surface of the guide rail, and the top surface of the third track can be made flush, so that the mobile vehicle can smoothly transition on the first track, the guide rail, and the third track, ensuring the normal movement of the mobile vehicle.

[0041] 3. By using a rodless cylinder to drive the third rail to move, compared with using a rod cylinder, it can save space and make the structure more compact.

[0042] 4. By allowing the guide wheels to roll in contact with the sides of the first track, the second track, and the third track, the mobile vehicle can be prevented from colliding in a direction perpendicular to the direction of travel, thereby improving the travel stability of the mobile vehicle.

[0043] 5. By providing the first limit telescopic rod and the second limit telescopic rod, when the docking track is not docked with the first track, the guide wheel can be prevented from leaving the first track or the second track, preventing the mobile vehicle from falling, thereby improving the safety of use.

[0044] 6. By setting the first rotating shaft, gear, first baffle and rack, the docking device can drive the third track to dock with the first track while driving the first baffle in a closed state to open, so that the first platform is opened. There is no need for construction workers to manually open the first baffle, which not only reduces labor intensity but also improves opening efficiency.

[0045] 7. When the first baffle is opened, because the first baffle can overlap the second platform, the first baffle can not only close the first platform, but also connect the first platform and the second platform, allowing construction workers to walk on the first baffle through the first platform and the second platform. On the one hand, the risk of construction workers walking between the first platform and the second platform is reduced, and safety is improved; on the other hand, there is no need to temporarily use other plates to connect the first platform and the second platform, which improves the connection efficiency.

[0046] 8. By setting the ratchet and the pawl, the third track can be prevented from accidentally leaving the first track, the reliability of the docking between the third track and the first track is guaranteed, and the reliability of the first baffle being opened and overlapped on the second platform is guaranteed.

[0047] 9. By setting the second rotating shaft, the second baffle, the hollow seat, the pressing block, the pressing elastic member, the pressing rod and the pin rod, the second baffle can be driven to open during the opening of the first baffle, so that the second platform is opened. There is no need for workers to manually open the second baffle, which is conducive to further reducing labor intensity and further improving opening efficiency.

[0048] 10. After the second baffle is opened, it can be located on the upper side of the first baffle, so that the second baffle can not only close the second platform, but also serve as a railing, so that when the construction workers walk on the first baffle, they can support the second baffle to stabilize their bodies, thereby improving safety.

[0049] 11. By providing the first electromagnetic suction cup and the second electromagnetic suction cup, the closed state of the first baffle and the second baffle can be stabilized, further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a disassembled stereoscopic diagram of the first track, the second track, the third track and the docking device;

[0051] Figure 2 It is an assembly stereogram of the first track, the second track, the third track and the docking device;

[0052] Figure 3 It is an assembly top view of the first track, the second track, the third track and the docking device;

[0053] Figure 4 It is an assembly front view of the first track, the second track, the third track and the docking device;

[0054] Figure 5 Assemble the first platform, the second platform, the first track, the second track, the third track, and the docking device Figure 1 ;

[0055] Figure 6 Assemble the first platform, the second platform, the first track, the second track, the third track, and the docking device Figure 2 ;

[0056] Figure 7 It is an assembly front view of the first platform, the second platform, the first track, the second track, the third track, and the docking device;

[0057] Figure 8 for Figure 7 A partial enlarged view of the middle A;

[0058] Fig. 9 It is an assembly front view of the second rotating shaft, the hollow seat, the pressing block, the pressing elastic member, the pressing rod, and the pin rod;

[0059] Fig.10 The assembly three-dimensional structure of the second rotating shaft, the hollow seat, the pressing block, the pressing elastic member, the pressing rod and the pin rod Figure 1 ;

[0060] Fig.11 The assembly three-dimensional structure of the second rotating shaft, the hollow seat, the pressing block, the pressing elastic member, the pressing rod and the pin rod Figure 2 ;

[0061] Fig.12 The assembly three-dimensional structure of the second rotating shaft, the hollow seat, the pressing block, the pressing elastic member, the pressing rod and the pin rod Figure 3 ;

[0062] Fig.13 The figure is a three-dimensional diagram of the mobile vehicle after removing the mobile housing;

[0063] Fig.14 A three-dimensional diagram of a mobile vehicle;

[0064] Fig.15 This is the main view of the mobile car;

[0065] Fig.16 It is the right side view of the mobile car;

[0066] Fig.17 It is an assembly stereogram of the mobile vehicle, the first platform, the second platform, the first track, the second track, the third track, and the docking device;

[0067] Fig.18 It is a front view of a mobile vehicle provided with an electric hoist;

[0068] Fig.19 It is the assembly front view of the mobile vehicle, electric hoist, cable construction pulley, first platform, second platform, first track, second track, third track and docking device;

[0069] Fig. 20 The present invention is a schematic diagram of the structure of a wire-laying crane;

[0070] Fig.21 For control indication Figure 1 ;

[0071] Fig. 22 For control indication Figure 2 ;

[0072] Fig.23 It is a structural schematic diagram of the background technology.

[0073] In the figure:

[0074] 01-chassis, 02-travel system, 03-slewing support, 04-slewing table, 05-jib, 06-luffing cylinder, 07-crossing frame assembly, 08-hook, 09-ladder,

[0075] 1- Tractor,

[0076] 21- First boom,

[0077] 22- Second boom,

[0078] 31-First hydraulic cylinder,

[0079] 32- Second hydraulic cylinder,

[0080] 41-first platform, 411-first railing, 412-first electromagnetic suction cup, 413-first rotating shaft, 414-first baffle, 415-gear, 416-through hole, 417-ratchet, 418-pawl, 419-resetting elastic member, 4110-abutting telescopic rod,

[0081] 42-second platform, 421-second railing, 422-second electromagnetic suction cup, 423-second rotating shaft, 4231-spiral groove, 424-second baffle, 425-hollow seat, 4251-first opening, 4252-second opening, 426-pressing block, 427-pressing elastic member, 428-pressing rod, 429-pin rod,

[0082] 51-the third hydraulic cylinder,

[0083] 52-the fourth hydraulic cylinder,

[0084] 61-first track, 611-first plane, 612-second plane, 613-vertical transition surface, 614-first limiting telescopic rod,

[0085] 62-second track, 621-guide rail, 622-docking hole, 623-docking seat, 624-second limiting telescopic rod,

[0086] 63-third rail, 631-guide hole, 632-rack,

[0087] 7-rodless cylinder, 71-piston,

[0088] 8-mobile vehicle, 81-mobile housing, 82-mobile motor, 83-turbine, 84-worm, 85-mobile wheel, 86-guide shaft, 87-guide wheel, 88-electric hoist,

[0089] 9-Wireline construction pulley. DETAILED DESCRIPTION

[0090] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0091] Embodiment 1:

[0092] See also Fig. 20 A wire-laying crane comprises a tractor 1, a boom, a boom adjusting device and a straddling frame assembly.

[0093] See also Fig. 20 The boom includes a first boom 21 and a second boom 22 .

[0094] The boom adjustment device includes a first adjustment device and a second adjustment device. The first adjustment device is used to adjust the angle of the first boom 21 , and the second adjustment device is used to adjust the angle of the second boom 22 .

[0095] See also Fig. 20 In this embodiment 1, the first adjusting device includes a first hydraulic cylinder 31, the bottom of the first boom 21 is rotatably connected to the tractor 1, the bottom of the first hydraulic cylinder 31 is rotatably connected to the tractor 1, and the piston rod of the first hydraulic cylinder 31 is rotatably connected to the lower part of the first boom 21. When the piston rod of the first hydraulic cylinder 31 is extended, the first boom 21 swings in a direction away from the second boom 22; when the piston rod of the first hydraulic cylinder 31 is retracted, the first boom 21 swings in a direction close to the second boom 22. The angle of the first boom 21 can be adjusted by the telescopic action of the piston rod of the first hydraulic cylinder 31.

[0096] See also Fig. 20 In this embodiment 1, the second adjusting device includes a second hydraulic cylinder 32, the bottom of the second boom 22 is rotatably connected to the tractor 1, the bottom of the second hydraulic cylinder 32 is rotatably connected to the tractor 1, and the piston rod of the second hydraulic cylinder 32 is rotatably connected to the lower part of the second boom 22. When the piston rod of the second hydraulic cylinder 32 is extended, the second boom 22 swings in a direction away from the first boom 21; when the piston rod of the second hydraulic cylinder 32 is retracted, the second boom 22 swings in a direction close to the first boom 21. The angle of the second boom 22 can be adjusted by the telescopic action of the piston rod of the second hydraulic cylinder 32.

[0097] See also Fig. 20 A ladder 09 is installed on the back of the first boom 21 and the back of the second boom 22 to facilitate construction workers to climb.

[0098] See also Fig. 20The span frame assembly includes a first platform 41 and a second platform 42. The first platform 41 is rotatably mounted on the top of the first suspension arm 21, and the second platform 42 is rotatably mounted on the top of the second suspension arm 22.

[0099] A third adjusting device is provided on the upper portion of the first suspension arm 21 , and the third adjusting device is used to adjust the angle of the first platform 41 . A fourth adjusting device is provided on the upper portion of the second suspension arm 22 , and the fourth adjusting device is used to adjust the angle of the second platform 42 .

[0100] See also Fig. 20 In the present embodiment 1, the third adjusting device comprises a third hydraulic cylinder 51, the bottom of the third hydraulic cylinder 51 is rotatably connected to the upper part of the first boom 21, and the piston rod of the third hydraulic cylinder 51 is rotatably connected to the bottom of the first platform 41. When the piston rod of the third hydraulic cylinder 51 is extended, the first platform 41 swings upward; when the piston rod of the third hydraulic cylinder 51 is retracted, the first platform 41 swings downward. The angle of the first platform 41 can be adjusted by the extension and retraction of the piston rod of the third hydraulic cylinder 51.

[0101] See also Fig. 20 In the present embodiment 1, the fourth adjusting device comprises a fourth hydraulic cylinder 52, the bottom of the fourth hydraulic cylinder 52 is rotatably connected to the upper part of the second boom 22, and the piston rod of the fourth hydraulic cylinder 52 is rotatably connected to the bottom of the second platform 42. When the piston rod of the fourth hydraulic cylinder 52 is extended, the second platform 42 swings upward; when the piston rod of the fourth hydraulic cylinder 52 is retracted, the second platform 42 swings downward. The angle of the second platform 42 can be adjusted by the extension and retraction of the piston rod of the fourth hydraulic cylinder 52.

[0102] See also Figure 1-Figure 7 A first rail 61 is installed at the bottom of the first platform 41, a second rail 62 is installed at the bottom of the second platform 42, a third rail 63 and a docking device are installed on the second rail 62, and the docking device is used to drive the third rail 63 to dock with the first rail 61. When the third rail 63 is docked with the first rail 61, the first rail 61, the second rail 62 and the third rail 63 are assembled into a lifting rail, and a moving vehicle 8 is installed on the lifting rail, and a wire construction pulley 9 is installed at the bottom of the moving vehicle 8.

[0103] See also Figure 1 In this embodiment 1, the top surface of the first track 61 is provided with a first plane 611 and a second plane 612, the first plane 611 is higher than the second plane 612, and a vertical transition surface 613 is provided between the first plane 611 and the second plane 612. A guide rail 621 is installed on the top surface of the second track 62. A guide hole 631 is provided on the third track 63, and the guide rail 621 and the guide hole 631 are slidably matched. Figure 2The first plane 611 is flush with the top surface of the third track 63 and the top surface of the guide rail 621 , the second plane 612 is flush with the top surface of the second track 62 , and the bottom of the third track 63 is slidably matched with the second plane 612 and the top surface of the second track 62 .

[0104] See also Figure 1 In the present embodiment 1, a docking hole 622 is provided on the second track 62, a docking seat 623 is provided in the docking hole 622, and the width of the docking hole 622 is greater than the width of the guide hole 631. Because the width of the docking hole 622 is greater than the width of the guide hole 631, the width of the docking hole 622 is greater than the width of the guide rail 621 located in the guide hole 631, so the guide rail 621 cannot completely separate and block the third track 63 and the docking seat 623, so that the bottom of the third track 63 and the top of the docking seat 623 can be assembled together. In addition, in the present embodiment 1, the docking device includes a rodless cylinder 7, the rodless cylinder 7 is installed at the bottom of the second track 62, and the top of the piston 71 of the rodless cylinder 7 is fixedly connected to the bottom of the docking seat 623. After the rodless cylinder 7 is started, the piston 71 of the rodless cylinder 7 can drive the third track 63 to move through the docking seat 623.

[0105] See also Figure 13-Figure 17 In this embodiment 1, the mobile vehicle 8 includes a mobile shell 81, a mobile motor 82 is installed in the mobile shell 81, a turbine 83 is installed on the output shaft of the mobile motor 82, a worm 84 is arranged above the turbine 83, both ends of the worm 84 pass through the mobile shell 81, and both ends of the worm 84 are rotatably connected to the mobile shell 81 through bearings. Both ends of the worm 84 passing through the mobile shell 81 are installed with moving wheels 85, and the moving wheels 85 walk on the first plane 611, the top surface of the third track 63, and the top surface of the guide rail 621.

[0106] In order to prevent the moving wheel 85 from slipping, friction stripes are provided on the first plane 611, the top surface of the third track 63, and the top surface of the guide rail 621. The setting of the friction stripes can increase the friction resistance of the moving wheel 85 when it moves, reduce the probability of slipping, and ensure the effectiveness of the moving wheel 85 when moving.

[0107] See also Fig.18 and Fig.19 In this embodiment 1, an electric hoist 88 is provided between the bottom of the mobile vehicle 8 and the wire-laying construction pulley 9. The electric hoist 88 is installed at the bottom of the mobile vehicle 8 and is used to lift the wire-laying construction pulley 9.

[0108] The working principle of this embodiment 1 is as follows:

[0109] First, pass the transmission cable to be installed through the wire construction pulley 9, so that the wire construction pulley 9 can be used as a fulcrum for pulling the transmission cable; then use the first adjusting device to drive the first boom 21 to lift, and use the second adjusting device to drive the second boom 22 to lift; then use the third adjusting device to adjust the first platform 41 to a horizontal level, and use the fourth adjusting device to adjust the second platform 42 to a horizontal level; then use the docking device to drive the third rail 63 to dock with the first rail 61, so that the first rail 61, the second rail 62 and the third rail 63 are combined into a lifting rail; finally, drive the mobile vehicle 8 to drive the wire construction pulley 9 to move along the lifting rail to adjust the position of the transmission cable.

[0110] From the above working principle, it can be seen that this embodiment 1 has the following effects:

[0111] First, in the present embodiment 1, when the docking device drives the third rail 63 to dock with the first rail 61, not only the first rail 61 and the second rail 62 and the third rail 63 are connected, but also the first platform 41 and the second platform 42 are connected. At this time, the crossing frame assembly including the first platform 41 and the second platform 42 can be supported by the first boom 21 and the second boom 22, thereby improving the stability of the crossing frame assembly. In addition, the mobile vehicle 8 can drive the wire construction pulley 9 to move along the first rail 61, the second rail 62 and the third rail 63, thereby adjusting the position of the transmission cable and improving the flexibility of the wire laying.

[0112] Second, by setting the first plane 611 and the second plane 612 on the first track 61, setting the guide rail 621 on the second track 62, and setting the guide hole 631 on the third track 63, the first plane 611 of the first track 61, the top surface of the guide rail 621, and the top surface of the third track 63 can be made flush, so that the mobile vehicle 8 can smoothly transition on the first track 61, the guide rail 621, and the third track 63, thereby ensuring the normal movement of the mobile vehicle 8.

[0113] Thirdly, by using the rodless cylinder 7 to drive the third rail 63 to move, compared with using a rod cylinder, it can save space and make the structure more compact.

[0114] Embodiment 2:

[0115] This embodiment 2 is further improved on the basis of embodiment 1:

[0116] See also Figure 2 and Figure 3 , the side surface of the first track 61, the side surface of the second track 62, and the side surface of the third track 63 are flush.

[0117] See also Fig.15 and Fig.17A guide shaft 86 is installed on the side of the movable housing 81, and a guide wheel 87 is rotatably connected to the guide shaft 86. The guide wheel 87 rolls in contact with the side of the first track 61, the side of the second track 62, and the side of the third track 63.

[0118] See also Figure 1 The first track 61 is provided with a first position-limiting telescopic rod 614 at one end close to the second track 62, and the second track 62 is provided with a second position-limiting telescopic rod 624 at one end close to the first track 61. The first position-limiting telescopic rod 614 and the second position-limiting telescopic rod 624 are both used to prevent the guide wheel 87 from moving. In this embodiment 1, the first position-limiting telescopic rod 614 and the second position-limiting telescopic rod 624 can both be telescopic devices such as hydraulic cylinders or pneumatic cylinders.

[0119] The working principle of this embodiment 2 is as follows:

[0120] (1) When the third track 63 is not docked with the first track 61, the first limit telescopic rod 614 and the second limit telescopic rod 624 are in an extended state. If the mobile vehicle 8 is located on the first track 61, the extended first limit telescopic rod 614 can prevent the guide wheel 87 from leaving the first track 61, thereby preventing the mobile vehicle 8 from falling. If the mobile vehicle 8 is located on the second track 62, the extended second limit telescopic rod 624 can prevent the guide wheel 87 from leaving the second track 62 and the third track 63, thereby preventing the mobile vehicle 8 from falling.

[0121] (2) When the third track 63 is docked with the first track 61, the first position-limiting telescopic rod 614 and the second position-limiting telescopic rod 624 are in a shortened state. At this time, the moving vehicle 8 can travel between the first track 61, the second track 62, and the third track 63.

[0122] (3) In order to facilitate the determination of whether the docking is in place, a normally open travel switch is installed on the vertical transition surface 613 between the first plane 611 and the second plane 612. Fig.21 , the normally open travel switch, the first limit telescopic rod 614 and the second limit telescopic rod 624 are all electrically connected to the control module. When the third track 63 abuts against the vertical transition surface 613, the third track 63 and the first track 61 are docked in place, and the normally open travel switch is pressed by the third track 63. After the control module receives the signal from the normally open travel switch, the control module controls the first limit telescopic rod 614 and the second limit telescopic rod 624 to shorten. When they are not docked in place, the normally open travel switch is not pressed by the third track 63, and the control module controls the first limit telescopic rod 614 and the second limit telescopic rod 624 to extend.

[0123] From the above working principle, it can be seen that the second embodiment has the following effects:

[0124] First, by allowing the guide wheels 87 to roll in contact with the flush sides of the first track 61 , the second track 62 , and the third track 63 , the moving vehicle 8 can be prevented from colliding in a direction perpendicular to the moving direction, thereby improving the moving stability of the moving vehicle 8 .

[0125] Second, by providing the first limiting telescopic rod 614 and the second limiting telescopic rod 624, when the docking track is not docked with the first track 61, the guide wheel 87 can be prevented from detaching from the first track 61 or the second track 62, thereby preventing the mobile vehicle 8 from falling and improving the safety of use.

[0126] Embodiment 3:

[0127] This embodiment 3 is further improved on the basis of embodiment 1 or embodiment 2:

[0128] See also Figure 5 The first platform 41 is provided with a first railing 411, and the second platform 42 is provided with a second railing 421. The first railing 411 is provided with a first electromagnetic suction cup 412, and the second railing 421 is provided with a second electromagnetic suction cup 422.

[0129] See also Figure 5 and Figure 8 The first platform 41 is provided with a first rotating shaft 413 at one end close to the second platform 42. The first rotating shaft 413 horizontally penetrates the first railing 411, and the first rotating shaft 413 is rotatably connected to the first railing 411 through a bearing. A first baffle 414 and a gear 415 are installed on the first rotating shaft 413, a through hole 416 is provided on the first platform 41, and the lower part of the gear 415 is exposed from the through hole 416, and a rack 632 is installed on the top surface of the third track 63, and the rack 632 is meshed with the lower part of the gear 415.

[0130] See also Figure 8 , a ratchet 417 is installed at the end of the first rotating shaft 413 that passes through the first railing 411. A pawl 418 is provided on the side of the first platform 41, and the lower end of the pawl 418 is rotatably connected to the side of the first platform 41. The upper end of the pawl 418 is connected to the side of the first platform 41 through a reset elastic member 419. In this embodiment 3, the reset elastic member 419 can be a spring, and the reset elastic member 419 is used to reset the pawl 418 after counterclockwise swing. A contact telescopic rod 4110 is also installed on the side of the first platform 41. The extended contact telescopic rod 4110 is used to contact the side wall of the pawl 418 to prevent the pawl 418 from rotating clockwise. The shortened contact telescopic rod 4110 will not hinder the pawl 418 from swinging clockwise. In this embodiment 3, the contact telescopic rod 4110 can be a telescopic device such as a hydraulic cylinder or a cylinder.

[0131] See also Figure 5-Figure 7 , Figure 9-12The second platform 42 is provided with a second rotating shaft 423 and a hollow seat 425 at one end close to the first platform 41. The second rotating shaft 423 is rotatably connected to the second platform 42, and the hollow seat 425 is fixedly installed on the second platform 42. A second baffle 424 is installed on the upper part of the second rotating shaft 423, and a spiral groove 4231 is provided on the lower part of the second rotating shaft 423. A pressing block 426 and a pressing elastic member 427 are provided inside the hollow seat 425. The pressing block 426 is vertically slidably matched with the inside of the hollow seat 425. In this embodiment 3, the pressing elastic member 427 can be a spring, and the pressing elastic member 427 is used to lift the pressing block 426 upward. The side wall of the hollow seat 425 is provided with a first opening 4251 and a second opening 4252. A pressing rod 428 is installed on the side of the pressing block 426 exposed from the first opening 4251, and the pressing rod 428 cooperates with the first baffle 414. A pin 429 is installed on the side of the pressing block 426 exposed from the second opening 4252, and the pin 429 cooperates with the spiral groove 4231.

[0132] See also Fig. 22 , this embodiment 3 also includes a control module. The docking device, the abutting telescopic rod 4110, the first electromagnetic suction cup 412, and the second electromagnetic suction cup 422 are all electrically connected to the control module. The control module is also electrically connected to the operation panel, and the operation panel is used to send a docking command or a docking release command to the control module. The operation panel can be installed on the tractor 1. In addition, the operation panel can also send commands by a remote control panel or the like.

[0133] The working principle of this embodiment 3 is as follows:

[0134] (1) When docking operations are required:

[0135] When the control module receives the docking command, the control module controls the docking device to drive the third track 63 to dock with the first track 61. At the same time, the control module controls the first electromagnetic suction cup 412 and the second electromagnetic suction cup 422 to be powered off, and the telescopic rod 4110 is extended to abut against the side of the pawl 418.

[0136] When the third track 63 docks with the first track 61, the third track 63 slides on the second plane 612 of the first track 61 close to the first plane 611, and the third track 63 drives the rack 632 to move together. The rack 632 drives the gear 415 to rotate clockwise, and the gear 415 drives the first rotating shaft 413 to rotate clockwise, and the first rotating shaft 413 drives the ratchet 417 and the first baffle 414 to rotate clockwise.

[0137] When the ratchet 417 rotates clockwise, the ratchet teeth on the ratchet 417 overcome the elastic force of the reset elastic member 419 to move the upper end of the pawl 418, so that the pawl 418 swings counterclockwise from the vertical state, and the pawl 418 does not hinder the clockwise rotation of the ratchet 417. Whenever a ratchet tooth passes over the pawl 418, the pawl 418 is reset to the vertical state under the elastic force of the reset elastic member 419, and the contact with the telescopic rod 4110 can prevent the pawl 418 from rotating clockwise from the vertical state, thereby preventing the first rotating shaft 413 from rotating counterclockwise during the docking operation.

[0138] When the first baffle 414 rotates clockwise, the first baffle 414 gradually presses down the pressing rod 428, and the pressing rod 428 drives the pressing block 426 to move downward to overcome the elastic force of the pressing elastic member 427, and the pressing block 426 drives the pin 429 to move downward, and the pin 429 pushes the lower groove wall of the spiral groove 4231, so that the second rotating shaft 423 drives the second baffle 424 to rotate, so that the second baffle 424 gradually opens the second platform 42.

[0139] When the third track 63 abuts against the vertical transition surface 613 between the first plane 611 and the second plane 612, the third track 63 and the first track 61 are docked in place, the first baffle 414 turns to a horizontal state, the horizontal first baffle 414 overlaps the second platform 42, and the second baffle 424 also turns to the upper side of the first baffle 414. At this time, the staff can walk between the first platform 41 and the second platform 42.

[0140] (2) When undocking is required:

[0141] When the control module receives the command to undocking, the control module controls the docking device to drive the third track 63 to leave the first track 61. At the same time, the control module controls the first electromagnetic suction cup 412 and the second electromagnetic suction cup 422 to be energized to abut the telescopic rod 4110 to shorten and leave the side of the pawl 418.

[0142] When the third track 63 leaves the first track 61, the third track 63 slides on the second plane 612 of the first track 61 away from the first plane 611, and the third track 63 drives the rack 632 to move together, the rack 632 drives the gear 415 to rotate counterclockwise, the gear 415 drives the first rotating shaft 413 to rotate counterclockwise, and the first rotating shaft 413 drives the ratchet 417 and the first baffle 414 to rotate counterclockwise.

[0143] When the ratchet 417 rotates counterclockwise, the ratchet teeth of the ratchet 417 move the upper end of the pawl 418, so that the pawl 418 swings clockwise from the vertical posture. In this process, because the abutment telescopic rod 4110 has shortened, the abutment telescopic rod 4110 will not hinder the pawl 418 from rotating clockwise from the vertical state.

[0144] When the first baffle plate 414 rotates counterclockwise, the first baffle plate 414 not only leaves the second platform 42, but also leaves the pressing rod 428. Since the pressing block 426 moves upward under the elastic force of the pressing elastic member 427, the pressing block 426 drives the pressing rod 428 and the pin rod 429 to move upward and reset. After moving upward and resetting, the pressing rod 428 can wait for the first baffle plate 414 to be pressed down again. After moving upward and resetting, the pin rod 429 pushes the upper groove wall of the spiral groove 4231, so that the second rotating shaft 423 drives the second baffle plate 424 to rotate in the opposite direction, so that the second baffle plate 424 gradually closes the second platform 42.

[0145] When the first baffle 414 rotates counterclockwise to a vertical state, the first baffle 414 blocks the end of the first platform 41 close to the second platform 42, that is, the first platform 41 is closed by the first baffle 414, and the first electromagnetic chuck 412 attracts the first baffle 414. When the second baffle 424 blocks the end of the second platform 42 close to the first platform 41, the second platform 42 is closed by the second baffle 424, and the second electromagnetic chuck 422 attracts the second baffle 424.

[0146] According to the above working principle, it can be seen that the present embodiment 3 has the following effects:

[0147] First, by setting the first rotating shaft 413, the gear 415, the first baffle 414, and the rack 632, the first baffle 414 in the closed state can be driven to open while the docking device drives the third track 63 to dock with the first track 61, so that the first platform 41 is opened. There is no need for construction workers to manually open the first baffle 414, which not only reduces labor intensity but also improves opening efficiency.

[0148] Second, when the first baffle 414 is opened, because the first baffle 414 can overlap the second platform 42, the first baffle 414 can not only close the first platform 41, but also connect the first platform 41 and the second platform 42, allowing construction workers to walk on the first baffle 414 through the first platform 41 and the second platform 42. On the one hand, the risk of construction workers walking between the first platform 41 and the second platform 42 is reduced, and safety is improved; on the other hand, there is no need to temporarily use other plates to connect the first platform 41 and the second platform 42, which improves connection efficiency.

[0149] Third, by providing the ratchet 417 and the pawl 418 , the third track 63 can be prevented from accidentally leaving the first track 61 , thereby ensuring the reliability of the docking between the third track 63 and the first track 61 , and ensuring the reliability of the first baffle 414 being opened and overlapped on the second platform 42 .

[0150] Fourth, by setting the second rotating shaft 423, the second baffle 424, the hollow seat 425, the pressing block 426, the pressing elastic member 427, the pressing rod 428, and the pin rod 429, the second baffle 424 can be driven to open during the opening of the first baffle 414, so that the second platform 42 is opened, and there is no need for workers to manually open the second baffle 424, which is conducive to further reducing labor intensity and further improving opening efficiency.

[0151] Fifth, after the second baffle 424 is opened, the second baffle 424 can be located on the upper side of the first baffle 414, so that the second baffle 424 can not only close the second platform 42, but also serve as a railing, so that when the construction workers walk on the first baffle 414, they can support the second baffle 424 to stabilize their bodies, thereby improving safety.

[0152] Sixth, by providing the first electromagnetic suction cup 412 and the second electromagnetic suction cup 422 , the closed state of the first baffle 414 and the second baffle 424 can be stabilized, further improving safety.

[0153] Embodiment 4:

[0154] This embodiment 4 is further improved on the basis of embodiment 1:

[0155] The tractor 1 is equipped with a first slewing bearing and a second slewing bearing. The first arm 21 and the first adjusting device are installed on the first slewing bearing, and the second arm 22 and the second adjusting device are installed on the second slewing bearing. The first slewing bearing is used to adjust the horizontal deflection angle of the first arm 21, and the second slewing bearing is used to adjust the horizontal deflection angle of the second arm 22. By adjusting the horizontal deflection angles of the first arm 21 and the second arm 22, the first arm 21 and the second arm 22 can be staggered and placed horizontally on the tractor 1, which is convenient for transportation. The first slewing bearing and the second slewing bearing are both existing technologies.

[0156] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wire-laying crane, comprising a tractor, a boom, a boom adjustment device, and a spanning frame assembly, characterized in that: The boom comprises a first boom and a second boom, and the first boom and the second boom are both arranged on the tractor. The boom adjustment device comprises a first adjustment device and a second adjustment device, wherein the first adjustment device is used to adjust the angle of the first boom, and the second adjustment device is used to adjust the angle of the second boom. The spanning frame assembly includes a first platform and a second platform, wherein the first platform is arranged at the top end of the first boom, and the second platform is arranged at the top end of the second boom. A first track is provided at the bottom of the first platform, a second track is provided at the bottom of the second platform, a third track and a docking device are provided on the second track, the docking device is used to drive the third track to dock with the first track, when the third track is docked with the first track, the first track, the second track and the third track are assembled into a hoisting track, a mobile vehicle is provided on the hoisting track, and a wire construction pulley is provided at the bottom of the mobile vehicle.

2. A wire crane as claimed in claim 1, characterized in that: A third adjusting device is provided on the upper part of the first boom, and the third adjusting device is used to adjust the angle of the first platform. A fourth adjusting device is provided on the upper part of the second boom, and the fourth adjusting device is used to adjust the angle of the second platform.

3. A wire-string crane according to claim 1 or 2, characterized in that: The top surface of the first track is provided with a first plane and a second plane, the first plane is higher than the second plane, A guide rail is provided on the top surface of the second track, the top surface of the second track is flush with the second plane, and the top surface of the guide rail is flush with the first plane. The top surface of the third track is flush with the height of the first plane, a guide hole is provided on the third track, the guide rail and the guide hole are slidably matched, and the bottom of the third track is slidably matched with the second plane and the top surface of the second track.

4. A wire-string crane as claimed in claim 3, characterized in that: The second track is provided with a docking hole, the width of the docking hole is greater than the width of the guide hole, a docking seat is provided in the docking hole, the top of the docking seat is connected to the bottom of the third track, and the bottom of the second track is provided with the docking device, which includes a rodless cylinder, and the top of the piston of the rodless cylinder is connected to the bottom of the docking seat.

5. A wire-string crane as claimed in claim 3, characterized in that: The mobile vehicle includes a mobile shell, a mobile motor is arranged in the mobile shell, a turbine is arranged on the output shaft of the mobile motor, a worm is arranged above the turbine, both ends of the worm pass through the mobile shell, both ends of the worm are rotatably connected with the mobile shell, and both ends of the worm passing through the mobile shell are provided with mobile wheels, and the mobile wheels run on the first plane, the top surface of the third track, and the top surface of the guide rail.

6. A wire-string crane as claimed in claim 5, characterized in that: The side surface of the first track, the side surface of the second track, and the side surface of the third track are flush, The side of the movable housing is provided with a guide shaft, and the guide shaft is provided with a guide wheel, and the guide wheel rolls in contact with the side of the first track, the side of the second track, and the side of the third track. The first track is provided with a first limiting telescopic rod at one end close to the second track, and the second track is provided with a second limiting telescopic rod at one end close to the first track. The extended first limiting telescopic rod and the extended second limiting telescopic rod are both used to prevent the guide wheel from moving.

7. A wire-string crane as claimed in claim 3, characterized in that: The first platform is provided with a first railing, and the second platform is provided with a second railing. The first platform is provided with a first rotating shaft at one end close to the second platform, the first rotating shaft horizontally passes through the first railing, the first rotating shaft is provided with a first baffle and a gear, a through hole is provided on the first platform, the lower part of the gear is exposed from the through hole, the top surface of the third track is provided with a rack, and the rack is meshed with the lower part of the gear, The first rotating shaft is provided with a ratchet at the end portion that passes through the first railing, and a pawl is provided on the side of the first platform. The lower end of the pawl is rotatably connected to the side of the first platform, and the upper end of the pawl is connected to the side of the first platform through a reset elastic member, and the reset elastic member is used to reset the pawl after counterclockwise swinging. The side of the first platform is also provided with an abutting telescopic rod, and the extended abutting telescopic rod is used to abut against the side wall of the pawl to prevent the pawl from rotating clockwise. When the third track slides on the second plane and approaches the first plane, the rack drives the gear to rotate clockwise, the gear drives the first shaft to rotate clockwise, and the first shaft drives the ratchet and the first baffle to rotate clockwise. When the third track abuts against the vertical transition surface between the first plane and the second plane, the third track is docked with the first track, the first baffle is turned to a horizontal state, and the first baffle in the horizontal state overlaps the second platform.

8. A wire-string crane as claimed in claim 7, characterized in that: The second platform is provided with a second rotating shaft and a hollow seat at one end close to the first platform, the second rotating shaft is rotatably connected to the second platform, the upper part of the second rotating shaft is provided with a second baffle, the lower part of the second rotating shaft is provided with a spiral groove, a pressing block and a pressing elastic member are provided inside the hollow seat, the pressing block is vertically slidably matched with the inside of the hollow seat, the pressing elastic member is used to lift the pressing block upward, the side wall of the hollow seat is provided with a first opening and a second opening, a pressing rod is provided on the side of the pressing block exposed from the first opening, the pressing rod is matched with the first baffle, a pin is provided on the side of the pressing block exposed from the second opening, the pin is matched with the spiral groove, When the first baffle rotates clockwise, the first baffle gradually presses the pressing rod, and the pressing rod drives the pressing block to move downward to overcome the elastic force of the pressing elastic member, and the pressing block drives the pin rod to move downward, and the pin rod pushes the lower groove wall of the spiral groove, so that the second rotating shaft drives the second baffle to rotate, and the second baffle gradually rotates to the upper side of the first baffle.

9. A wire-string crane as claimed in claim 8, characterized in that: The first railing is provided with a first electromagnetic suction cup, and the second railing is provided with a second electromagnetic suction cup, When the first baffle is rotated to a vertical state, the first baffle blocks one end of the first platform close to the second platform, and the first electromagnetic chuck attracts the first baffle. When the second baffle blocks an end of the second platform close to the first platform, the second electromagnetic chuck attracts the second baffle.

10. A wire-string crane according to claim 9, characterized in that: It also includes a control module, and the docking device, the abutting telescopic rod, the first electromagnetic suction cup, and the second electromagnetic suction cup are all electrically connected to the control module. When the control module receives the docking command, the docking device drives the third track to dock with the first track, the first electromagnetic chuck and the second electromagnetic chuck are powered off, and the abutting telescopic rod is extended to abut against the side of the pawl. When the control module receives the command to release the docking, the docking device drives the third track to leave the first track, and the first electromagnetic chuck and the second electromagnetic chuck are energized to abut against the side of the telescopic rod that is shortened and leaves the pawl.

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