Light landing double-rocker-arm derrick

Abstract

The invention discloses a light landing double-rocker arm derrick, which relates to the technical field of power grid assembly construction equipment, and changes the situation that the stability control of the derrick is passive and isolated in the past through the cooperative operation of a monitoring module, a control center, an execution mechanism interface and a composite stable structure. The active and comprehensive management of the stability of the holding pole is realized; an existing derrick device is seamlessly connected through the executing mechanism interface, intervention on the operating state of the derrick can be achieved without changing an original executing mechanism, and the control center can process various real-time data and coordinate the adjusting function of the composite stable structure and the hoisting action of the derrick. Therefore, the inherent structural rigidity of the derrick and the anti-interference capacity under operation are improved at the same time, and the overall stability of the derrick is enhanced when the derrick faces complex working conditions such as wind power and load changes.

Description

Technical Field

[0001] This invention relates to the field of hydroelectric power grid erection equipment technology, and in particular to a lightweight, ground-mounted double-rocker arm pole. Background Technology

[0002] In Yunnan, the existing truss tower erection operations primarily employ the traditional method of internally suspended gantry erection. This requires lifting the gantry to a height of over 20 meters above the tower top and extending ground control cables to a height of over 100 meters outside the tower. This necessitates a higher construction site and a larger footprint. Theoretically, the entire suspended gantry hoisting system is in a critical mechanical state during construction, making the tower erection process highly susceptible to wind influences. This places high demands on on-site command, system control, and construction safety. Furthermore, the internally suspended gantry erection method is unsuitable for erecting the tops of towers with long curved arms, long crossarms, small side dimensions, and poor stability, such as goblet-shaped or cat-head-shaped towers. It also presents safety risks, including numerous high-altitude work points for construction workers and the risk of falls.

[0003] Currently, most existing technologies are traditional ground-mounted double-rocker gantry erectors, primarily used for tower erection in areas with good transportation conditions, open working areas, high tower height, and large tower weight. However, traditional gantry erection methods are no longer sufficient to meet requirements in terms of safety, workmanship, and quality. This is especially true in the challenging terrain and limited working areas faced by transmission line tower erection in the Yunnan plateau region, where the gantry structure provides inadequate support for construction operations in such harsh environments.

[0004] Therefore, there is an urgent need for a new type of lightweight landing pole that can overcome terrain limitations and has high stability. Summary of the Invention

[0005] In view of the problems existing in the above or prior art, the present invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a lightweight, floor-standing double-rocker arm pole, comprising, A rod assembly for supporting the main body; A rotary mechanism located at the top of the rod assembly is used to provide horizontal rotary motion; The rocker arm assemblies located on both sides of the rotary mechanism are used to achieve hoisting; The leveling mechanism located at the bottom of the rod assembly is used to adjust and maintain the required levelness during construction. The slewing mechanism drives the rocker arm assembly to rotate in the horizontal plane to achieve precise hoisting of power tower components.

[0007] As a preferred embodiment of the lightweight ground-mounted double rocker arm pole described in this invention, the pole assembly includes a tower body reinforcing section and a tower body standard section disposed on one side of the tower body reinforcing section.

[0008] The standard tower sections enable modular, rapid assembly and highly flexible adjustments, while the reinforced tower sections are positioned in high-stress areas to effectively enhance local structural strength and overall buckling resistance. The combination of standard and reinforced tower sections ensures local robustness while facilitating transportation and rapid on-site assembly, making it more suitable for construction needs in high-altitude regions with frequent site relocations and complex work surfaces.

[0009] As a preferred embodiment of the lightweight floor-standing double rocker arm pole described in this invention, the slewing mechanism includes an upper slewing platform and a lower slewing platform arranged coaxially, and a slewing support mechanism is provided between the upper slewing platform and the lower slewing platform; the rocker arm assembly is provided on both sides of the upper slewing platform.

[0010] The coordination of the upper and lower slewing platforms and the slewing support mechanism not only improves the overall rigidity and load-bearing capacity, but also smoothly transmits the overturning moment generated by the rocker arm operation to the pole assembly. At the same time, the rocker arm assembly is symmetrically connected to both sides of the upper slewing platform, supporting coordinated operation on both sides or independent operation on one side, which improves the adaptability and operation efficiency of hoisting complex tower heads such as goblet-shaped and cat-head-shaped towers. As a preferred embodiment of the lightweight floor-standing double rocker arm pole described in this invention, the leveling mechanism includes a leveling base, and the leveling base is circumferentially provided with a support leg leveling component, which adjusts the tilt angle of the leveling base through telescopic movement.

[0011] As a preferred embodiment of the lightweight floor-standing double rocker arm pole described in this invention, the end of the outrigger leveling assembly is provided with a foot plate.

[0012] The circumferentially distributed outrigger leveling components allow for telescopic movement, enabling precise adjustment of the leveling base to adapt to any irregular terrain. By setting foot plates at the ends of the outrigger leveling components, the contact area with the ground is increased, effectively reducing the unit ground pressure and preventing localized subsidence on soft soil, gravel, and other non-hardened surfaces.

[0013] As a preferred embodiment of the lightweight floor-standing double rocker arm pole described in this invention, the rocker arm assembly includes a root section disposed on one side of the slewing mechanism, an intermediate section disposed on one side of the root section, and a head section disposed on one side of the intermediate section.

[0014] By adopting a modular segmented design with boom root section, intermediate section and boom head section, not only is transportation and on-site assembly facilitated, but the length of the boom can also be flexibly adjusted according to actual lifting needs. While meeting the lifting requirements of long boom extension, the weight of individual components is effectively controlled, adapting to the actual situation of limited transportation conditions in plateau and mountainous areas.

[0015] As a preferred embodiment of the lightweight landing double rocker arm mast described in this invention, it further includes a mast assembly, which includes a mast top section and a mast standard section disposed on one side of the mast top section.

[0016] By combining the top section of the mast with the standard section of the mast, its height can be increased synchronously with the tower body, providing a stable support point for the hoisting of high-altitude components. It can also serve as an anchoring structure for luffing ropes and safety ropes, working together with the rocker arm assembly to resist overturning moments and wind load interference during operation, thus enhancing the stability of the system. It is suitable for hoisting the heads of towers such as goblet-shaped and cat-head-shaped towers.

[0017] As a preferred embodiment of the lightweight ground-mounted double rocker arm pole described in this invention, it further includes a lifting frame, which comprises an upper frame and a lower frame disposed on one side of the upper frame.

[0018] The in-situ lifting function of the pole assembly is realized by the lifting frame. Through the alternating support and lifting of the upper and lower frames, the standard tower section can be safely raised without the entire pole being laid down and reinstalled, thus adapting to the tower erection needs of different heights.

[0019] As a preferred embodiment of the lightweight floor-standing double rocker arm pole of the present invention, it further includes a waist ring assembly, the waist ring assembly including a lifting waist ring and a pull wire waist ring disposed on one side of the lifting waist ring, and the pull wire waist ring is provided with a pull wire connecting ear plate along the circumferential direction on the upper edge of the pull wire waist ring; As a preferred embodiment of the lightweight landing double rocker arm pole described in this invention, the lifting waist ring and the pull wire waist ring are both composed of two symmetrical split structures, which are fastened to the outer periphery of the pole assembly by fasteners.

[0020] The segmented structure of the waist ring assembly allows it to easily attach to the already assembled pole, facilitating on-site operations. The lifting waist ring provides a reliable point of leverage for the lifting process. The guy wire waist ring connects to the ear plate through circumferentially distributed guy wires, making it easy to connect to the surrounding assembled tower body or ground anchor, providing lateral guy wire support for the pole and enhancing its resistance to wind loads and eccentric loads.

[0021] The beneficial effects of this plan are: This invention, by placing the leveling mechanism at the bottom of the pole assembly, can actively adjust and maintain the overall levelness under uneven foundation conditions such as mountainous terrain, effectively solving the dependence of traditional internally suspended gantry cranes on large sites and absolutely level foundations. At the same time, the slewing mechanism drives the double rocker arms to rotate in the horizontal plane, enabling multi-directional hoisting without moving the entire structure, significantly reducing construction land occupation and the difficulty of adapting to complex terrain. The overall ground-mounted structure eliminates the mechanical critical state of internally suspended gantry cranes, improving wind resistance stability and operational safety during tower erection, and is especially suitable for harsh environments with narrow working surfaces and fragmented terrain, such as the Yunnan Plateau. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a lightweight, floor-mounted, double-rocker arm pole.

[0024] Figure 2 This is a schematic diagram of the slewing mechanism of a lightweight, floor-mounted, double-rocker arm pole.

[0025] Figure 3 This is a schematic diagram of a leveling mechanism for a lightweight, floor-mounted double rocker arm pole.

[0026] Figure 4 This is a schematic diagram of a lightweight, ground-based, double-rocker arm lifting frame structure.

[0027] Figure 5 This is a schematic diagram of a lifting waist ring structure for a lightweight, ground-based double-rocker arm pole.

[0028] Figure 6 This is a schematic diagram of the cable waist ring structure of a lightweight, floor-standing double rocker arm pole.

[0029] The components include: 1. Pole assembly; 11. Tower body reinforcing section; 12. Tower body standard section; 2. Slewing mechanism; 21. Upper slewing platform; 22. Lower slewing platform; 23. Slewing support mechanism; 3. Leveling mechanism; 31. Leveling base; 32. Outrigger leveling assembly; 33. Outrigger plate; 4. Rocker arm assembly; 41. Arm root section; 42. Intermediate section; 43. Arm head section; 5. Mast assembly; 51. Mast top section; 52. Mast standard section; 6. Lifting frame; 61. Upper frame; 62. Lower frame; 7. Waist ring assembly; 71. Lifting waist ring; 72. Guy wire waist ring. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0033] The actuator mentioned in this embodiment performs the original working motion of the gantry itself, that is, the various movements in the working function of the gantry itself, such as the lifting and lowering of the gantry tower, the rotation of the rocker arm, and the hoisting. These are existing technologies of the gantry itself, so they are not described in detail.

[0034] Reference Figures 1-6 This embodiment provides a lightweight, floor-standing, dual-rocker arm pole, which includes: Rod assembly 1, which is used to support the main body; The rotary mechanism 2, located at the top of the rod assembly 1, is used to provide horizontal rotary motion. The rocker arm assemblies 4, located on both sides of the rotary mechanism 2, are used to achieve hoisting; The leveling mechanism 3, located at the bottom of the pole assembly 1, is used to adjust and maintain the required levelness during construction. The slewing mechanism 2 drives the rocker arm assembly 4 to rotate in the horizontal plane, which is used to achieve precise hoisting of power tower components.

[0035] Furthermore, the pole assembly 1 includes a tower body reinforcing section 11 and a tower body standard section 12 disposed on one side of the tower body reinforcing section 11, with the bottom end of the tower body reinforcing section 11 connected to the top end of the tower body standard section 12.

[0036] Reference Figures 1-6 As one embodiment of the present invention, the slewing mechanism 2 includes an upper slewing platform 21 and a lower slewing platform 22 arranged coaxially. A slewing support mechanism 23 is provided between the upper slewing platform 21 and the lower slewing platform 22. Rocker arm assemblies 4 are provided on both sides of the upper slewing platform 21. The bottom of the lower slewing platform 22 is connected to the tower body reinforcing section 11 of the rod assembly 1.

[0037] Both the upper rotary table 21 and the lower rotary table 22 are box-type frame structures, and the rotary support mechanism 23 is a single-row ball-type rotary structure. The rotary support mechanism 23 is connected to the upper rotary table 21 and the lower rotary table 22 respectively through flanges.

[0038] Reference Figures 1-6 In one embodiment of the present invention, the leveling mechanism 3 includes a leveling base 31, and a support leg leveling assembly 32 is circumferentially arranged on the leveling base 31. The support leg leveling assembly 32 adjusts the tilt angle of the leveling base 31 through telescopic movement. The support leg leveling assembly 32 is a telescopic arm structure, and is used to connect an external hydraulic drive mechanism to adjust the angle of the leveling base 31 through telescopic movement.

[0039] The leveling base 31 is a detachable box-shaped rigid platform. A mounting hole is provided at the center of the leveling base 31. The rod assembly 1 is installed in the mounting hole through a mounting plate and a pull wire. There are four sets of support leg leveling assemblies 32, which are respectively located at the four corners of the leveling base 31. The ends of the support leg leveling assemblies 32 are connected to hinged support plates 33.

[0040] Reference Figures 1-6 As one embodiment of the present invention, The rocker arm assembly 4 includes a root section 41 disposed on one side of the rotary mechanism 2, an intermediate section 42 disposed on one side of the root section 41, and a head section 43 disposed on one side of the intermediate section 42.

[0041] Two sets of rocker arm assemblies 4 are symmetrically connected to both sides of the upper rotary table 21. The root section 41, the middle section 42 and the head section 43 are connected in sequence. The root section 41 is connected to the upper rotary table 21 and the head section 43 is connected to the lifting assembly. The rocker arm assembly 4 is used to rotate in the plane through the rotary mechanism 2 and bear the load transmitted by the lifting assembly.

[0042] The boom root section 41, intermediate section 42 and boom head section 43 are all triangular truss structures. The end of the boom root section 41 is hinged to the upper turntable 21 for amplitude transformation through the hinge point movement. The intermediate section 42 is connected to the boom root section 41 and boom head section 43 through a flange. The lifting assembly is equipped with a hook pulley block, and the hook pulley block is equipped with a lifting rope for lifting.

[0043] Reference Figures 1-6 As one embodiment of the present invention, It also includes a mast assembly 5, which includes a mast top section 51 and a mast standard section 52 disposed on one side of the mast top section 51.

[0044] The mast assembly 5 is connected to the top of the upper rotary table 21. The mast assembly 5 includes a top mast section 51 and a standard mast section 52 connected between the top mast section 51 and the upper rotary table 21. Both the top mast section 51 and the standard mast section 52 are truss structures. A first fixed bracket and a second fixed bracket are connected between adjacent mast standard sections 52 on the mast assembly 5 and between the mast top section 51 and the mast standard section 52. The first fixed bracket and the second fixed bracket are connected by a pin and are used for assembling and disassembling the mast assembly 5.

[0045] Reference Figures 1-6 As one embodiment of the present invention, Furthermore, it also includes a lifting frame 6, which includes an upper frame 61 and a lower frame 62 disposed on one side of the upper frame 61.

[0046] The upper frame 61 and the lower frame 62 are frame-type truss structures set around the tower body. The lifting frame 6 is used to support the tower body pole assembly 1 lifted by the lifting cylinder during the lifting process. Both the upper frame 61 and the lower frame 62 are symmetrical and detachable structures. The lifting frame 6 is equipped with a lifting cylinder support, and the lifting cylinder is installed on the lifting cylinder support.

[0047] Reference Figures 1-6 As one embodiment of the present invention, It also includes a waist ring assembly 7, which includes a lifting waist ring 71 and a guy wire waist ring 72 disposed on one side of the lifting waist ring 71. The lifting waist ring 71 is used to drive the pole assembly 1 connected to the lifting waist ring 71 to move upward when the pole is lifted by a lifting cylinder. The guy wire waist ring 72 is provided with guy wire connecting ear plates at equal angles along the circumference. Guy wires are connected to the guy wire connecting ear plates. The guy wires are used to connect to the external transmission tower through the guy wire connecting ear plates and support the pole by applying pre-tension.

[0048] Furthermore, both the lifting waist ring 71 and the pull wire waist ring 72 are composed of two symmetrical split structures, which are fixed to the outer periphery of the rod assembly 1 by fasteners, which are bolts.

[0049] Reference Figures 1-6 As one embodiment of the present invention, In this embodiment, before the erection of the power tower, the detachable base of the leveling mechanism 33 is assembled at the construction site and fixed to the ground by the base guy wire. After the leveling system is started, the high-precision dual-axis tilt sensor on the base monitors the tilt angle in the X and Y axes in real time. The controller calculates the extension and retraction of each outrigger according to the preset algorithm, and then drives the extension and retraction of the four high-strength telescopic arm hydraulic outriggers arranged at 45° diagonally to make the base reach a horizontal state. After leveling, the system continuously monitors the tilt angle and automatically fine-tunes if it exceeds the limit. Subsequent high-risk operations are prohibited when the base is not horizontal. Next, based on the leveling base 31, the standard tower section 12 is assembled sequentially, and the tower reinforcement section 11 is installed in the high-stress area. Each section is connected by high-strength bolts or inner flanges to form the rod assembly 1. Then, the lower slewing platform 22 is installed on the top of the tower, followed by the single-row ball-type slewing drive slewing support mechanism 23 and the upper slewing platform 21. The double rocker arm assembly 4 is assembled above the upper slewing platform 21, and the mast assembly 5 is erected simultaneously. Finally, the lifting frame 6, the lifting waist ring 71, and the guy wire waist ring 72 are installed. When the tower needs to be heightened, the lifting cylinder pushes the lifting waist ring 71 and the tower to rise, introducing the new standard section. During hoisting operations, the luffing system adjusts the rocker arm amplitude, the slewing support mechanism 23 drives the rocker arm to rotate at ±110°, and the lifting pulley block lifts the load. Single or double side coordinated operation is possible. The guy wire waist ring 72 provides lateral support, and the mast bears various loads to maintain stability. After the operation is completed, each component is disassembled sequentially.

[0050] This gantry erector solves the problems of high site requirements, poor stability, and difficult transportation and relocation of existing internal suspension gantry erectors. It is particularly suitable for the difficult transportation, harsh terrain, and small working area in the Yunnan plateau. It improves tower erection efficiency and reliability, reduces the risk of high-altitude operations and falls, and the lightweight design facilitates transportation and assembly. The space cable ventilation system and leveling further ensure operational safety.

[0051] Reference Figures 1-6In one embodiment of the present invention, both the mast top section and the standard mast section 52 of the mast assembly 5 are made of high-strength structural steel of Q355B or above, welded together in a truss structure. The overall structure has a 500×500 square cross section. During assembly, the standard mast sections 52 are first assembled sequentially through joint connections to ensure connection rigidity and strength. Then, the mast top section is installed on the top of the standard mast sections 52, forming a complete mast consisting of a fixed mast and a mast cap. Subsequently, the first fixed support and the second fixed support are connected in the middle section of the fixed mast through a pin shaft. At the same time, a luffing rope and a safety rope are installed between the mast and the boom. During the tower hoisting operation, the mast mainly bears the backward tilting tension generated by the lifting moment balancing the forward tilting moment of the boom, external wind load, and the axial pressure and huge overturning moment generated during double boom hoisting operations. The luffing rope, in conjunction with the boom's luffing system, enables stable adjustment of the boom's amplitude. The safety rope provides additional safety protection under different working conditions of the boom, preventing instability of the boom.

[0052] The mast assembly 5 achieves lightweighting while ensuring sufficient load-bearing capacity and overall rigidity through high-strength materials and truss structure design. The square cross-section further optimizes the stress performance, and the pin-connected fixed bracket facilitates disassembly and assembly, adapting to the needs of high-altitude transportation and relocation. The installation of luffing rope and safety rope significantly improves the stability of the boom operation, thereby maintaining the operational safety of the entire mast assembly and effectively solving the problems of heavy weight, inconvenient disassembly and assembly, and insufficient stability of traditional mast assemblies.

[0053] Reference Figures 1-6 In one embodiment of the present invention, the rocker arm assembly 4 adopts a double rocker arm structure. The root section 41, intermediate section 42, and head section 43 are all welded from triangular truss structures and are all made of Q690 high-strength material. During assembly, the root section 41 is first connected to the intermediate section 42 with flange bolts, and then the intermediate section 42 is connected to the head section 43 with flange bolts to ensure that each section is firmly connected. Subsequently, the root section 41 is hinged to the upper slewing platform 21, so that the rocker arm can change its amplitude around the hinge point. At the same time, a lifting pulley block and a luffing system are installed on the rocker arm. The two rocker arm mechanisms are symmetrically and independently arranged on both sides of the slewing platform. During operation, the luffing system controls the working amplitude of the rocker arm by adjusting the length of the luffing rope. The lifting pulley block is responsible for lifting the tower components. The slewing bearing drives the rocker arm to achieve 360° rotation. According to the construction requirements, the control system can realize independent operation of one side of the rocker arm or coordinated operation of both sides of the rocker arm under load balance.

[0054] The application of triangular truss structure and Q690 high-strength material gives the rocker arm excellent bending and torsional resistance, reducing the weight of a single section while ensuring strength, facilitating transportation and assembly; the symmetrical arrangement of the double-sided rocker arms improves work efficiency, and is especially suitable for the erection of tower heads with long curved arms and long crossarms, such as goblet-shaped and cat-head-shaped towers; the 360° rotation function and flexible operation mode reduce the requirements for the construction site, adapt to the narrow working surface in high-altitude areas, and also reduce the frequency of construction personnel working at heights, reducing the risk of falls from heights.

[0055] Reference Figures 1-6 In one embodiment of the present invention, the upper slewing platform 21 is constructed from Q355B high-strength steel plates welded into a box-shaped frame structure and is designed to be detachable. During assembly, the upper slewing platform 21 is first placed above the slewing support mechanism 23, and the upper slewing platform 21 is fixedly connected to the slewing support mechanism 23 with bolts to ensure the firmness of the connection. Subsequently, the mast assembly 5 and the rocker arm assembly 4 are installed on the upper slewing platform 21, wherein the mast assembly 5 is connected to the upper part of the upper slewing platform 21, and the arm root section 41 of the rocker arm assembly 4 is hinged to the upper slewing platform 21. During the pole lifting operation, the upper slewing platform 21 mainly bears the upper mast assembly 5, the rocker arm assembly 4, and various loads generated during rocker arm lifting, including vertical loads, horizontal loads, and bending moments, and stably transmits these loads to the lower slewing support mechanism 23. At the same time, it provides a stable hinged foundation for the rocker arm assembly 4, ensuring the structural stability of the rocker arm during amplitude changes and slewing movements.

[0056] The lower slewing platform 22 is constructed from Q355B high-strength steel plates, welded into a high-rigidity box-type frame structure. During assembly, the lower part of the lower slewing platform 22 is first connected and fixed to the top of the tower body to ensure a tight connection. Then, the lower slewing platform 22 is connected to the slewing support mechanism 23 via the upper flange, allowing the slewing support mechanism 23 to be stably installed above the lower slewing platform 22. During the operation of the mast, the lower slewing platform 22 serves as a transitional load-bearing structure connecting the top of the tower body and the slewing support mechanism 23. It primarily receives various loads transmitted from the slewing support mechanism 23, especially the enormous overturning moment generated during the operation of the upper slewing platform 21, mast, and rocker arm assembly 4. Subsequently, these loads are evenly and stably transferred to the tower body, preventing deformation or damage caused by excessive local stress on the tower body.

[0057] The slewing support mechanism 23 uses a single-row ball-type slewing drive. During assembly, it is connected between the upper slewing platform 21 and the lower slewing platform 22, and is fixed to the lower part of the upper slewing platform 21 and the upper part of the lower slewing platform 22 with bolts to ensure that the connection is secure. A motor is also provided as the drive device. During tower hoisting operations, when it is necessary to adjust the working direction of the rocker arm, the motor is started. The motor drives the single-row ball-type slewing drive to rotate, thereby driving the upper slewing platform 21 and the rocker arm assembly 4 mounted on the upper slewing platform 21 to achieve a ±110° rotation. This allows the rocker arm to accurately align with the position of the tower component to be hoisted, meeting hoisting requirements in different directions.

[0058] In this embodiment, the detachable design allows the upper slewing platform 21 to be disassembled and transported during transportation, effectively solving the problem of difficult transportation in plateau areas and facilitating site relocation. The combination of Q355B high-strength steel plate and box-type frame structure ensures that the upper slewing platform 21 has sufficient load-bearing capacity and rigidity, and can withstand complex loads without easily deforming. The bolt connection method is not only convenient to install, but also ensures the connection strength, avoiding loosening during load transfer, thereby improving the reliability and safety of the entire gantry crane and providing a stable structural foundation for subsequent hoisting operations.

[0059] The high-rigidity welded steel structure and box-frame design give the lower slewing platform 22 excellent anti-overturning capacity and load-bearing performance, effectively resisting the effects of huge overturning moments and ensuring structural stability. The use of Q355B high-strength material ensures strength while also taking into account a certain degree of lightweighting, facilitating transportation and installation. The upper flange connection ensures a firm connection with the slewing support mechanism 23, while the tight connection between the lower part and the tower body ensures that the load can be smoothly transferred to the tower body. The overall design effectively improves the safety of the gantry under high-stress conditions and adapts to the high-intensity operation requirements of tower erection in plateau areas.

[0060] The single-row ball-type slewing drive design makes the slewing motion more flexible and smooth, reduces frictional resistance during the movement, and lowers energy consumption; the motor drive enables automated control of the slewing motion, improves the accuracy and efficiency of direction adjustment, and avoids the tediousness and errors of manual adjustment; the ±110° slewing range can cover most hoisting direction requirements, eliminating the need to frequently move the entire boom assembly and reducing dependence on the construction site; the bolted connection ensures a firm connection between the slewing support mechanism 23 and the upper and lower slewing tables 22, stably transmitting torque and load during slewing, avoiding swaying or displacement, ensuring safety and stability during operation, and adapting to multi-angle hoisting operations in complex plateau terrain.

[0061] Reference Figures 1-6In one embodiment of the present invention, the lifting frame 6 includes an upper frame 61, a lower frame 62, and a hanger. Both the upper frame 61 and the lower frame 62 are truss structures surrounding the tower body, designed as two detachable pieces. Lifting cylinder supports are integrated on both the upper frame 61 and the lower frame 62. During assembly, the two pieces of the upper frame 61 and the lower frame 62 are first spliced ​​around the tower body and fixed together with connectors to form a complete frame structure, ensuring that the position of the lifting cylinder support meets the installation requirements of the corresponding lifting cylinder. When it is necessary to increase the tower height to accommodate the erection of taller towers, the lifting cylinder is installed on the lifting cylinder support. The lifting cylinder is activated, and it generates an upward thrust, which pushes the installed tower body and the upper structure connected to the tower body upward. At this time, the upper frame 61 and the lower frame 62 form a stable support frame, providing sufficient space for the introduction of the new tower standard section 12. After the new standard section is installed and fixed, one tower heightening operation is completed. This process can be repeated as needed.

[0062] The detachable design allows the lifting frame 6 to be disassembled during transportation, reducing the volume and weight of individual components and facilitating transport and relocation in high-altitude areas. The truss structure, while ensuring lightweight construction, possesses sufficient rigidity and load-bearing capacity to stably support the weight of the upper structure. The integrated lifting cylinder support simplifies the installation process of the lifting cylinder and improves assembly efficiency. The space provided during the lifting process ensures the smooth installation of the new standard section, enabling flexible adjustment of the tower height to meet the assembly requirements of towers of different heights, reducing the risks of high-altitude assembly, and improving operational safety.

[0063] like Figure 5 As shown, the lifting waist ring 71 consists of two symmetrical, segmented frames. During assembly, the two segmented frames are secured around the mast standard section 52 with high-strength bolts, ensuring that the protrusions on the inner wall of the waist ring can precisely engage and lock with the pre-set lifting plate on the tower standard section 12. Simultaneously, the outer side of the waist ring is connected to the piston rod head of the lifting cylinder or the lifting beam of the inverted frame. During the tower lifting operation, when the lifting cylinder is activated, the thrust generated by the lifting cylinder acts on the lifting waist ring 71. Because the waist ring is locked with the lifting plate through the protrusions, it can move the locked tower body upwards together. The moving distance is exactly the height of one tower standard section 12. After the tower body is raised to the correct position, a new standard section is introduced and installed using the space provided by the lifting sleeve 6, completing the key step of increasing the tower height.

[0064] The symmetrical, segmented frame design of the lifting waist ring 71 facilitates the installation and removal of the waist ring on the standard mast section 52, eliminating the need for a complete assembly and adapting to the step-by-step operation during tower assembly. High-strength bolts ensure the waist ring's secure engagement, preventing loosening during lifting. The engagement between the shoulder and the lifting plate ensures no relative slippage between the waist ring and the tower, stably transmitting lifting force and driving the tower to rise synchronously. The connection design with the lifting cylinder provides a reliable force point during the lifting process, ensuring the lifting force is effectively applied to the tower, guaranteeing stability, safety, and precision during lifting. This prevents the tower from tilting or shifting during lifting, improving the safety and efficiency of tower heightening operations.

[0065] Reference Figures 1-6 In one embodiment of the present invention, the guy wire waist ring 72 consists of two symmetrical, segmented frames. During assembly, the two segmented frames are clamped and fixed in the upper middle part of the tower body. Four guy wire connecting lugs are evenly distributed on the waist ring. These lugs are connected to the assembled tower components by high-strength steel wire ropes, and pre-tension is applied to the steel wire ropes to form a spatial cable wind stabilization system. During the hoisting operation of the gantry crane, when encountering wind loads or eccentric loads, the spatial cable wind stabilization system comes into play. The guy wire waist ring 72 transmits the external force to the assembled tower through the steel wire ropes, providing additional lateral support for the gantry crane, which can resist the lateral forces caused by wind loads and eccentric loads, and reduce the lateral deformation of the tower body.

[0066] The design of the two symmetrical, segmented frames allows the guy wire waist ring 72 to be easily installed on the tower body without requiring additional modifications to the tower structure. The four equally angled ear plates ensure the uniform distribution of wire rope tension, and the resulting spatial cable wind system provides lateral support from multiple directions, improving wind resistance and overall stability. The application of high-strength wire rope and pre-tension significantly improves the lateral stiffness and overturning resistance of the tower body, avoiding excessive deformation or overturning risk under wind load or eccentric load. The connection method with the existing tower makes full use of the existing structure, eliminating the need for additional ground anchors, reducing the requirements for the construction site, adapting to the narrow working surface in high-altitude areas, while ensuring the safe operation of the gantry at its maximum height and reducing the impact of severe weather on operations.

[0067] Reference Figures 1-6In one embodiment of the present invention, the pole assembly 1 includes a tower reinforcement section 11 and a tower standard section 12, both of which can be truss structures with square cross-sections and made of high-strength, lightweight materials. The tower reinforcement section 11 has undergone localized structural reinforcement. During assembly, based on the leveled base of the leveling mechanism 3, the first tower standard section 12 is first connected and fixed to the base. Subsequently, the remaining tower standard sections 12 are connected sequentially according to the required construction height. In high-stress areas of the tower, such as areas with concentrated loads or prone to buckling, the tower reinforcement sections 11 are installed. Each standard section and reinforcement section is connected by high-strength bolts or internal flanges to ensure the rigidity and strength of the connection points, forming a complete tower main structure.

[0068] During pole erection operations, the standard tower section 12, as the main modular unit of the tower, primarily bears the responsibility of transmitting vertical loads and resisting bending moments and torques generated by external forces, maintaining the stability of the entire structure. The reinforced tower section 11, through locally strengthened structural design, enhances the overall stiffness and local buckling resistance of the tower in high-stress areas, preventing structural damage under extreme conditions. The square-section truss structure achieves lightweight design while ensuring structural strength, reducing the weight of individual sections and facilitating transportation and assembly in high-altitude areas. The modular standard section design allows for flexible adjustment of the tower height to accommodate the erection of towers of varying heights. High-strength bolts or internal flange connections ensure a robust connection between sections, ensuring stable and reliable load transfer. The localized reinforcement of the reinforced tower section 11 specifically addresses strength issues in high-stress areas, improving the overall load-bearing capacity and safety factor of the tower, adapting to the high-intensity operational requirements of harsh high-altitude terrain, and reducing the risk of tower deformation.

[0069] Reference Figures 1-6In one embodiment of the present invention, the leveling mechanism 3 includes a detachable leveling base 31 and a leg leveling assembly 32. The base is a box-shaped rigid platform welded from Q355B high-strength steel plate. The leg leveling assembly 32 includes four high-strength telescopic hydraulic outriggers that are radially hinged at the four corners of the base at a 45° diagonal direction. Each outrigger has a two-stage telescopic arm cylinder and is driven by a double-acting hydraulic cylinder. The end of the outrigger is equipped with a large-size spherical hinged foot plate 33. At the same time, a high-precision dual-axis tilt sensor, a core controller, and a human-machine interface are mounted on the base. During deployment, the base is first disassembled and assembled at the construction site. The base is fixed to the ground by a string line. After the system is started, the dual-axis tilt sensor monitors the tilt angle of the base in the X and Y axes in real time. The core controller receives the sensor signal, calculates the required extension and retraction of each outrigger according to the preset leveling algorithm, and drives the hydraulic cylinder to extend and retract the outriggers until the base reaches a horizontal state. The human-machine interface displays the current posture, leveling status, and alarm information in real time. After leveling is completed, the system continuously monitors the tilt angle. If the tilt angle exceeds the limit due to ground settlement or load changes, such as >0.5°, the system will automatically fine-tune the relevant outriggers to maintain the level. At the same time, the system is interlocked with the operation. High-risk operations such as hoisting and jacking are prohibited when the outriggers are not level or when leveling is not completed. The outriggers can also be equipped with pressure monitoring, soft leg protection and overload alarm functions.

[0070] The detachable base facilitates transportation and relocation; the 45° diagonal outrigger layout optimally distributes outrigger reaction forces, improving anti-overturning stability and load distribution; high-precision sensors and automatic algorithms enable rapid and accurate leveling, adapting to complex and uneven ground; the spherical outrigger plate 33 increases the ground contact area, adapting to uneven ground; dynamic monitoring and safety interlocks ensure operational safety, effectively solving the problem of base instability caused by uneven plateau terrain, providing a stable foundation for the entire pole-mounting device, and reducing safety risks.

[0071] The lightweight, ground-mounted double-rocker arm gantry of this invention is formed by combining a modularly designed tower reinforcement section 11 and a standard tower section 12 to form the pole assembly 1, balancing structural strength and assembly flexibility. The upper and lower slewing platforms 21 and 22 are connected by a slewing support mechanism 23, allowing for flexible rotation of the rocker arm to adjust the lifting angle and adapt to the lifting needs of different types of towers. The bottom leveling mechanism 3 uses telescopic arm-type outrigger leveling components 32 distributed around the center of the leveling base 31, achieving telescopic movement through hydraulic drive. This allows for more precise adjustment of the leveling base 31 angle, effectively adapting to harsh environments with varied mountainous terrain and limited working areas. It eliminates the need for significantly expanding the ground control guy wire range, significantly reducing the construction site occupation requirements. This technical solution avoids the mechanical critical state risks of existing internally suspended gantry ...

[0072] Importantly, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A lightweight, floor-standing, double-rocker arm pole, characterized in that: include, A rod assembly (1) is used to support the main body; The rotary mechanism (2) located at the top of the rod assembly (1) is used to provide horizontal rotary motion; The rocker arm assemblies (4) located on both sides of the rotary mechanism (2) are used to achieve hoisting; The leveling mechanism (3) located at the bottom of the rod assembly (1) is used to adjust and maintain the levelness required for construction. The slewing mechanism (2) drives the rocker arm assembly (4) to rotate in the horizontal plane to achieve precise hoisting of power tower components.

2. The lightweight floor-standing double-rocker arm pole as described in claim 1, characterized in that: The pole assembly (1) includes a tower body reinforcing section (11) and a tower body standard section (12) disposed on one side of the tower body reinforcing section (11).

3. A lightweight, floor-standing double-rocker arm pole as described in claim 1, characterized in that: The rotary mechanism (2) includes an upper rotary table (21) and a lower rotary table (22) arranged coaxially, and a rotary support mechanism (23) is provided between the upper rotary table (21) and the lower rotary table (22). The rocker arm assembly (4) is provided on both sides of the upper rotary table (21).

4. A lightweight, floor-standing double-rocker arm pole as described in claim 1, characterized in that: The leveling mechanism (3) includes a leveling base (31), and a leg leveling component (32) is provided around the leveling base (31). The leg leveling component (32) adjusts the tilt angle of the leveling base (31) by telescopic movement.

5. A lightweight, floor-standing double-rocker arm pole as described in claim 4, characterized in that: The end of the outrigger leveling assembly (32) is provided with a foot plate (33).

6. A lightweight, floor-standing double-rocker arm pole as described in claim 1, characterized in that: The rocker arm assembly (4) includes a root section (41) disposed on one side of the rotary mechanism (2), an intermediate section (42) disposed on one side of the root section (41), and a head section (43) disposed on one side of the intermediate section (42).

7. A lightweight floor-standing double-rocker arm pole as described in any one of claims 1-6, characterized in that: It also includes a mast assembly (5), which includes a mast top section (51) and a mast standard section (52) disposed on one side of the mast top section (51).

8. A lightweight floor-standing double-rocker arm pole as described in any one of claims 1-6, characterized in that: It also includes a lifting frame (6), which includes an upper frame (61) and a lower frame (62) disposed on one side of the upper frame (61).

9. A lightweight floor-standing double-rocker arm pole as described in any one of claims 1-6, characterized in that: It also includes a waist ring assembly (7), which includes a lifting waist ring (71) and a pull wire waist ring (72) disposed on one side of the lifting waist ring (71), and the pull wire waist ring (72) is provided with a pull wire connecting ear plate along the circumferential direction.

10. A lightweight, floor-standing double-rocker arm pole as described in claim 9, characterized in that: Both the lifting waist ring (71) and the pull wire waist ring (72) are composed of two symmetrical split structures and are fastened to the outer periphery of the rod assembly (1) by fasteners.

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