Pole standard section feeding tool and modular tower assembly equipment

Abstract

The present application relates to the field of electric power construction, specifically, to a pole standard section feeding tool and a modular iron tower assembling equipment, which comprises a tool main body, the tool main body comprises a linear guide rail arranged horizontally and a bearing platform assembly slidingly fitted in the linear guide rail, the linear guide rail extends from the lifting channel of the sleeve frame mechanism to outside the sleeve frame mechanism; the bearing platform assembly comprises a pushing bearing platform, a lifting bearing platform and a rotating bearing platform, the pushing bearing platform is arranged above the linear guide rail and slidingly fitted with the linear guide rail, the lifting bearing platform is installed above the pushing bearing platform and can move up and down relative to the pushing bearing platform, the rotating bearing platform is installed above the lifting bearing platform and can rotate relative to the lifting bearing platform in the horizontal plane, through the present application, the pushing, lifting and rotating three-stage adjustment bearing platform assembly is matched with the linear guide rail feeding, the hoisting, transportation and alignment operations of the pole standard section are separated into the material waiting station outside the sleeve frame and the butt joint station inside the sleeve frame, the stable feeding and accurate alignment of the standard section are realized.

Description

Technical Field

[0001] This invention relates to the field of power construction, and more specifically, to a standard section feeding fixture for pole erection and modular tower erection equipment. Background Technology

[0002] During the assembly of modular steel towers, the standard sections of the mast to be installed need to be fed into the lifting channel from the side entrance of the frame and connected to the lifting platform. Traditional methods of feeding standard sections often rely on manual labor in conjunction with cranes or winches, which is not only labor-intensive and inefficient, but also poses significant safety hazards.

[0003] On the one hand, cranes are difficult to deploy in narrow mountainous areas or urban alleys, and manual handling is time-consuming and labor-intensive. Furthermore, standard sections are difficult to position accurately when being inserted into the frame, which can easily lead to collisions with the internal structure of the frame and damage to components.

[0004] On the other hand, after the standard section enters the lifting channel, the bottom flange needs to be aligned with the installation position of the lifting platform. However, it is very difficult to manually adjust its height and circumferential angle, which often requires multiple attempts and seriously affects the construction progress. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A standard section feed fixture for the boom, one end of which is located within the lifting channel of the sleeve mechanism, and the other end extending from the channel inlet on the side of the sleeve mechanism to the outside of the sleeve mechanism, comprising: The tooling body includes a horizontally arranged linear guide rail and a support assembly that slides with the linear guide rail. The linear guide rail extends from the lifting channel of the sleeve mechanism to the outside of the sleeve mechanism. The support assembly includes a push support, a lifting support, and a rotating support. The push support is located above the linear guide rail and slides with it. The lifting support is installed above the push support and can move up and down relative to the push support. The rotating support is installed above the lifting support and can rotate relative to the lifting support in the horizontal plane.

[0006] Preferably, the tooling body also includes a drive assembly, which includes a horizontally arranged transmission screw and a drive component that drives the transmission screw to rotate forward or backward. The drive component is located on the tooling body at one end away from the sleeve mechanism. The transmission screw is parallel to the linear guide rail and extends from inside the lifting channel of the sleeve mechanism to outside the sleeve mechanism. The bottom of the push platform is provided with a transmission nut that is threadedly connected to the transmission screw.

[0007] Preferably, the tooling body includes two horizontally arranged and parallel linear guide rails, and a horizontal guide rod that is parallel to and of equal length to the conveying screw; the bottom of the push platform is provided with rollers, which slide and are engaged with the linear guide rails and can roll within the linear guide rails; the bottom of the push platform is provided with a guide sleeve, which is fitted onto the horizontal guide rod and can slide along the horizontal guide rod.

[0008] Preferably, multiple lifting guide rods are vertically fixed at the bottom of the lifting platform, and guide through holes are provided on the pushing platform that correspond one-to-one with the lifting guide rods and slide together. The lower end of the lifting guide rod passes through the guide through hole and the end is provided with a lifting limit block. The radial dimension of the lifting limit block is larger than the diameter of the guide through hole.

[0009] Preferably, the support platform assembly includes a locking assembly, which includes a pair of lifting plates vertically fixed to the bottom of the lifting platform and symmetrically distributed. The middle of the pushing platform has a lifting through hole for the lifting plates to pass through downwards, and the bottom end of the lifting plates has a positioning groove. Two positioning components are provided on the tooling body near the end of the sleeve mechanism. The two positioning components are slidably installed on both sides of the tooling body. The end of the positioning component near the center of the lifting through hole can be engaged in the positioning groove. The positioning component includes two stations: a locking station that extends into the center of the lifting through hole and engages in the positioning groove, and an unlocking station that is away from the center of the lifting through hole and withdraws from the positioning groove.

[0010] Preferably, a slewing bearing is provided between the rotating platform and the lifting platform, with the slewing bearing respectively embedded in the bottom surface of the rotating platform and the top surface of the lifting platform.

[0011] Preferably, the top surface of the rotating platform is provided with limiting blocks at the four corners, and the four limiting blocks form a limiting space for placing the lower end of the standard section of the gantry rod; the limiting blocks are L-shaped and fitted to the lower corner of the standard section of the gantry rod.

[0012] Preferably, one end of the linear guide rail extends into the lifting channel of the sleeve mechanism, and the other end extends to the outside of the sleeve mechanism; the support assembly includes horizontally spaced and non-overlapping waiting stations and docking stations on the linear guide rail, the waiting stations are located outside the sleeve mechanism and are used for unobstructed hoisting of the standard section of the pole, and the docking stations are located in the lifting channel of the sleeve mechanism.

[0013] Tower erection equipment includes the aforementioned standard section feeding fixture for the mast.

[0014] This invention, by adopting the above technical solutions, has significant technical effects: This invention employs a three-stage adjustable support platform assembly (pushing, lifting, and rotating) in conjunction with a linear guide rail for feeding. This separates the hoisting, transportation, and alignment operations of the standard section of the gantry crane into a waiting station outside the frame and a docking station inside the frame, achieving smooth feeding and precise alignment of the standard section. The locking assembly provides stable locking at the docking height, and the limit block restricts the horizontal displacement and rotation of the standard section. While adapting to narrow construction sites, this invention significantly improves the efficiency of standard section feeding, docking accuracy, and operational safety. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the tower erection equipment in Example 1.

[0017] Figure 2 This is a schematic diagram of the base mechanism of Embodiment 1.

[0018] Figure 3 This is a schematic diagram of the main base of Embodiment 1.

[0019] Figure 4 This is a schematic diagram of the sub-base of Embodiment 1.

[0020] Figure 5 This is a schematic diagram of the base assembly of Embodiment 1.

[0021] Figure 6 This is a cross-sectional schematic diagram of the foot assembly in Embodiment 1.

[0022] Figure 7 This is a schematic diagram of the frame mechanism in Embodiment 1.

[0023] Figure 8 This is a schematic diagram of the upper frame of Embodiment 1.

[0024] Figure 9 This is a schematic diagram of the lower sleeve structure of Example 1.

[0025] Figure 10 This is a schematic diagram of the lifting mechanism in Example 1.

[0026] Figure 11 This is a schematic diagram of the flexible connection component in Embodiment 1.

[0027] Figure 12 This is a schematic diagram of the screw assembly mounting base in Embodiment 1.

[0028] Figure 13 This is a schematic diagram of the structure of the lead screw assembly adjustment plate in Embodiment 1.

[0029] Figure 14 This is a schematic diagram of the structure of the lead screw assembly fixing plate in Embodiment 1.

[0030] Figure 15 This is a schematic diagram of the combination of the lead screw assembly adjustment plate and the lead screw assembly fixing plate in Embodiment 1.

[0031] Figure 16 This is a schematic diagram of the lifting platform structure in Example 1.

[0032] Figure 17 This is a schematic diagram of the main base of the base mechanism in Embodiment 2.

[0033] Figure 18 This is a schematic diagram of the base assembly in Embodiment 2.

[0034] Figure 19 This is a partial exploded view of the base assembly in Embodiment 2.

[0035] Figure 20 This is a cross-sectional view of the leveling bolt in Example 2.

[0036] Figure 21 This is a cross-sectional schematic diagram of the lead screw assembly mounting base in Embodiment 3.

[0037] Figure 22 yes Figure 21 Enlarged diagram of point A in the middle.

[0038] Figure 23 This is a structural schematic diagram of the guide wheel assembly of the lifting platform in a certain state according to Embodiment 4.

[0039] Figure 24 This is a structural schematic diagram of the guide wheel assembly of the lifting platform in another state according to Embodiment 4.

[0040] Figure 25 This is a schematic diagram of the structure of the second or third guide wheel in Embodiment 4.

[0041] Figure 26 This is a schematic diagram of the mounting arm adjustment assembly in Example 4.

[0042] Figure 27 This is a schematic diagram of the feed fixture for the standard section of the boom in Example 6.

[0043] Figure 28 This is an exploded view of the standard section feed fixture for the boom in Example 6.

[0044] Figure 29 This is a schematic diagram of the bottom surface of the standard section feed fixture for the boom in Example 6.

[0045] Figure 30 yes Figure 29 Enlarged diagram of point B in the middle. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0047] Example 1 Modular tower erection equipment, such as Figure 1-16 As shown, the system includes a sleeve mechanism 120, the bottom of which is mounted on a base mechanism 110. The sleeve mechanism 120 includes a lower sleeve 720 and an upper sleeve 710 mounted on the upper end of the lower sleeve 720. Both the upper sleeve 710 and the lower sleeve 720 are lattice steel frames with a square cross-section. The sleeve mechanism 120 has a lifting channel inside for the vertical movement of the boom section 00. A lifting mechanism 130 is mounted on the sleeve mechanism 120. The lifting mechanism 130 is located in the lifting channel and is used to lift the boom section 00. The lifting mechanism 130 includes a lifting platform 730 and a drive mechanism for driving the lifting platform 730 to move up and down in the lifting channel. The drive mechanism includes two symmetrically arranged screw assemblies on the sleeve. Each screw assembly includes a screw 1010 that is axially vertical and whose lower end is connected to the lifting platform 730, and a drive motor 1020 that drives the screw 1010 to move up and down and is fixed on the sleeve.

[0048] The pole section 00 moves vertically within the lifting channel inside the frame. The lifting mechanism 130, which drives the pole section 00 to move up and down, is also located within the lifting channel, without extending into additional space. This design is particularly suitable for space-constrained environments such as mountainous areas, urban alleyways, and power transmission line corridors. The base mechanism 110, frame mechanism 120, and lifting mechanism 130 adopt a modular design, allowing for the separate transport of components such as the drive motor 1020, lead screw 1010, upper frame 710, lower frame 720, lifting platform 730, and base mechanism 110. This design is suitable for complex transportation scenarios such as mountain roads and manual handling. On-site assembly requires no special tools; the modules can be assembled using bolts or pins, further enhancing construction convenience. The steel structures of the frame, lifting platform 730, and base all employ welding technology. For example, the lifting platform 730 uses square steel pipes welded together with channel steel, replacing the integral cast steel component, significantly reducing its weight. Furthermore, the welded joints have undergone strength verification to meet construction load requirements.

[0049] In this embodiment, the base mechanism 110 includes a main base 210 for supporting the pole section and the sleeve. The main base 210 includes four main base connecting beams 310 evenly distributed around the center of the main base 210. Two of the main base connecting beams 310 are integrally formed component one, and the other two are integrally formed component two. Both component one and component two are constructed in an L-shape and their bends are connected to each other. The connection points of component one and component two are both vertical planes and they are welded to each other at the center of the main base 210.

[0050] Each main base connecting beam 310 has a pole section support seat 340 and a sleeve support seat 330 on its upper end surface. The four pole section support seats 340 jointly support the pole section, and the four sleeve support seats 330 jointly support the sleeve. Each of the four main base connecting beams 310 includes a connecting end connected to the center of the main base 210 and an extension end extending away from the center of the main base 210. The four pole section support seats 340 are located near the connecting end, and the four sleeve support seats 330 are located at the extension end. A connecting crossbeam 320 is fixed between each pair of adjacent main base connecting beams 310. In this embodiment, the main base connecting beam 310, the secondary base connecting beam 410, and the connecting crossbeam 320 are all I-beams. The two ends of the connecting crossbeam 320 are welded to the web plates of the main base connecting beam 310 on both sides. The connecting crossbeam 320 has the function of strengthening the structural stability and structural strength of the main base 210. On the other hand, the upper and lower end faces of the connecting crossbeam 320 and the upper and lower flange plates of the main base connecting beam 310 are reserved for the installation of the secondary base 220. The connecting crossbeam 320 serves as the installation point of the secondary base 220, so that the secondary base 220 and the main base 210 form a whole, with a compact structure and uniform stress distribution.

[0051] The auxiliary base 220 is installed on two connecting beams 320 that are arranged opposite each other along the length of the main base 210. The auxiliary base 220 is used to support the winch and is symmetrically installed on both sides of the main base 210. The auxiliary base 220 includes a base body connected by multiple auxiliary base connecting beams 410. The upper and lower end faces of the base body are respectively provided with an upper panel 420 and a lower panel 430. The upper panel 420 and the lower panel 430 are respectively interference-fitted with the upper flange plate and the lower flange plate of the main base connecting beam 310. The upper and lower panels are hollow to reduce their own weight. In addition, one side of the upper and lower panels is connected to the connecting beam 320, and the two sides are interference-fitted within the distance between the connecting beam 320 and the I-beam flange plate. This can not only enhance the structural connection stability, but also increase the stress area between the two, so that the entire base mechanism has better load-bearing capacity. The main base 210 uses a truss structure to achieve "emptiness instead of solidity", which greatly reduces its own weight while ensuring load-bearing capacity. The secondary base 220 has a symmetrical layout, a clear force transmission path, and no redundant load-bearing components.

[0052] Additionally, one end of the upper panel 420 forms a winch mounting position, and the other end is fixed to the connecting beam 320 by multiple fastening bolts. The multiple fastening bolts are evenly arranged along the length of the connecting beam 320. The auxiliary base 220 and the main base 210 are stably connected mainly by fastening bolts, so that the main base 210 and the auxiliary base 220 can be disassembled to achieve on-site assembly, which is convenient for transportation and allows for reasonable selection of the installation position of the auxiliary base 220 according to the actual site conditions. It is flexible in use and easy to install.

[0053] Four sleeve support seats 330 are installed on the main base 210. The top of the sleeve support seat 330 is provided with a first connecting angle plate 331. The bottom of the upper sleeve 710 is provided with four second connecting angle plates 850. The upper and lower ends of the lower sleeve 720 are provided with third connecting angle plates 930 respectively corresponding to the second connecting angle plates 850 and the first connecting angle plates 331. The first connecting angle plates 331 and the third connecting angle plates 930, as well as the second connecting angle plates 850 and the third connecting angle plates 930, are fixedly connected by multiple bolts.

[0054] The main base 210 supports the sleeve frame and the pole section 00, while the secondary base 220 fixes the winch. The lower sleeve frame 720 is connected and installed on the main base 210, and the two are fixedly connected by the sleeve frame support seat 330 and the third connecting angle plate 930. During on-site construction, the winch power unit, the base mechanism 110, and the sleeve frame mechanism 120 are integrated into a single structure. Simultaneously, the lifting mechanism 130 is installed inside the sleeve frame mechanism 120. The overall structure of the tower erection equipment is compact, highly adaptable to different sites, and efficient during construction. In this design, two luffing winches are symmetrically installed on the lower frame 720, and lifting winches are symmetrically installed on the auxiliary bases 220 on both sides. This optimizes the installation position and wire rope routing, making the equipment flexible and non-interfering, with reasonable force distribution in each part. It also facilitates easy installation and disassembly, transportation, and local maintenance. By integrating the luffing winches on the left and right sides of the lower frame 720 and installing the lifting winches on the left and right sides of the bases, the traditional decentralized layout is abandoned, significantly reducing the overall footprint of the equipment and making it suitable for narrow construction sites in mountainous areas.

[0055] In this embodiment, the extended end of the main base connecting beam 310 is provided with a foot assembly for adjusting the height and level of the main base 210. The number of foot assemblies can be set according to actual needs. Foot assemblies can be installed at the bottom of both the auxiliary base 220 and the main base 210. They are flexible in use and easy to install.

[0056] The foot assembly includes a support plate 510 for supporting the extension end and a height adjustment assembly for adjusting the height of the support plate 510. The support plate 510 is constructed as an upward-opening U-shaped plate, and the support plate 510 forms a U-shaped support groove 511, in which the extension end is supported. The structure of the support plate 510 allows it to be used for beams with different shaped bases, such as I-beams and channel steel beams. The entire base mechanism can be supported simply by placing the extension end of the main base connecting beam 310 into the U-shaped support groove 511. Specifically, four foot assemblies are used, which are respectively set at the extension ends of the four main base connecting beams 310.

[0057] To further improve support stability, in this embodiment, the two sides of the support plate 510 are provided with opposing clamping bolts 640 that can respectively abut against the two sides of the extension end. The clamping bolts 640 are axially horizontal and threadedly connected to the support plate 510. The clamping bolts 640 can abut against the side of the extension end to achieve clamping of the extension end. The clamping bolts 640 are threadedly connected to the support plate 510 and can adjust the clamping distance so that they can be adapted to main base connecting beams 310 of different shapes.

[0058] In this embodiment, the height adjustment component includes an adjustment seat 610. An upwardly extending adjustment sleeve 620 is located at the center of the adjustment seat 610. An adjustment rod 630 is threadedly connected to the adjustment sleeve 620. The upper end of the adjustment rod 630 extends out of the adjustment sleeve 620, and a support plate 510 is installed on the upper end of the adjustment rod 630. Height and level adjustments are primarily achieved by rotating an adjustment screw in and out of the adjustment sleeve 620.

[0059] During base installation, to prevent the tower crane from sinking or tilting, a 2m x 2m site needs to be excavated at the center of the tower and leveled, such as by laying gravel, using timber, or steel plates. However, even after leveling the site, it is difficult to ensure that the base is completely level. Since the tower crane has a large load, even a slight tilt poses a significant safety risk. Therefore, in this embodiment, the four adjustment components are further adjusted to ensure the levelness of the main base 210 with the help of a corresponding level, so that it can adapt to various ground conditions, such as sand, rock, silt, concrete foundation / piles, cement, and asphalt. There are no specific requirements for the flatness of the ground.

[0060] Because the device, consisting of the base, frame, and winch, has a large self-weight, it is difficult for operators to adjust it in actual operation. Therefore, in order to make the adjustment components easier and more convenient, this embodiment has a sliding rod 650 extending downward and slidably connected to the adjusting rod 630 at the lower end face of the support plate 510. The sliding rod 650 is equipped with an upper thrust bearing 660, a lower thrust bearing 670, and an annular pressure sensor 680 disposed between the upper thrust bearing 660 and the lower thrust bearing 670. The upper end face of the upper thrust bearing 660 abuts against the lower end face of the support plate 510, and the lower end face of the lower thrust bearing 670 abuts against the lower end face of the adjusting rod 630. The upper end face of the adjusting rod 630 is provided with an annular mounting groove 690 with an L-shaped vertical cross section for installing the lower thrust bearing 670. The annular mounting groove 690 enables the stable installation of the lower thrust bearing 670. In addition, it is sleeved on the slide rod 650. The slide rod 650 and the adjusting rod 630 are installed by plugging in. The installation of all components is relatively convenient.

[0061] A ring-shaped pressure sensor 680 is installed between the upper thrust bearing 660 and the lower thrust bearing 670. The sensor is independently powered and transmits signals wirelessly. During the setup process, the load-bearing capacity of a single anchor component can be preset according to the maximum weight of the supported structure and load. The pressure sensor detects the force on each anchor component to monitor each support point. Furthermore, the load-bearing capacity distribution of multiple anchor components can serve as a basis for adjusting the anchor components and judging the overturning warning of the support, ensuring that the supported component is in the prescribed posture and that the off-center load is within the compliant range.

[0062] The installation of two thrust bearings at the top and bottom reduces friction during the rotation of the adjusting rod 630, allowing it to rotate more easily between the support plate 510 and the adjusting sleeve 620. This enables height adjustment of the foot assembly, reduces wear, increases the service life of the foot assembly, and ensures adjustment accuracy.

[0063] The adjusting rod 630 includes a rotating section 520 and a threaded connection section 540 distributed vertically. The outer wall of the rotating section 520 is provided with a rotating handle 530. The lower end of the threaded connection section 540 is threaded into the adjusting sleeve 620, and a fastening nut 541 that can abut against the upper end face of the adjusting sleeve 620 is threaded onto the threaded connection section 540. After adjustment, the fastening nut 541 is used to lock the adjustment, keeping the foot assembly stably at the height.

[0064] In this embodiment, to ensure the accuracy of height adjustment of the foot assembly, the foot assembly also includes a leveling component for leveling the adjusting seat 610, so that even if the foot assembly is supported on an uneven bottom surface, the supported component can still move in a vertical direction completely perpendicular to the horizontal plane during height adjustment. The adjusting seat 610 includes an adjusting seat base plate 611, with an adjusting sleeve 620 disposed at the center of the adjusting seat base plate 611. The leveling component includes a grounding base plate 550, with a positioning pin 561 on its upper surface. The adjusting seat base plate 611 has a positioning pin hole 562 that mates with the positioning pin 561 and has an inner diameter larger than the outer diameter of the positioning pin 561. The adjusting seat base plate 611 also has a plurality of leveling bolts 570 evenly distributed on its lower end face that can abut against the upper surface of the adjusting seat base plate 611.

[0065] The upper surface of the base plate 550 is provided with an annular abutment groove 551. The lower surfaces of multiple leveling bolts 570 can abut against the bottom surface of the annular abutment groove 551. During the leveling process, leveling can be performed first using some of the leveling bolts 570, and then further tightened and locked using the remaining leveling bolts 570. The upper surface of the adjusting base plate 611 is provided with a bubble level to observe the levelness of the adjusting base plate 611 in real time during the leveling process. In addition, in this embodiment, in order to further increase the support stability of the foot assembly, an anti-slip groove 552 is also provided on the lower surface of the base plate 550 to increase the friction between the base plate 550 and the ground, ensuring the support stability of the foot assembly.

[0066] During installation, the base plate 550 is initially placed and stabilized in its supporting position. The adjusting seat 610 is then placed on the base plate 550, and initial positioning is achieved by using the positioning pins 561 on the base plate 550 and the positioning pin holes 562 on the adjusting seat base plate 611. The tilt angle of the adjusting seat base plate 611 is adjusted using the leveling bolts 570 to ensure that the adjusting seat base plate 611 is in a horizontal state. Then, the base mechanism is supported on the support plates 510 of each foot component. The rotating handle 530 on the outer wall of the adjusting rod 630 is rotated. At the same time, an anti-rotation handle is provided on the outer wall of the adjusting sleeve 620. The anti-rotation handle is stabilized, and the rotating handle 530 is adjusted to move the adjusting rod 630 in the vertical direction, thereby adjusting the support plate 510 and the base mechanism supported on the support plate 510. By adjusting the synchronous adjustment of the foot anchors, in conjunction with the annular pressure sensors 680 in each foot anchor component, the height and level of the base mechanism can be precisely adjusted. As the weight of the supporting components on the base assembly increases, the annular pressure sensors 680 can monitor in real time and adjust the inclination angle of the foot anchor components and supports based on the monitoring situation to ensure that the supported components are in the specified posture. Finally, after the entire tower assembly structure is installed stably, the inclination angle and height of the foot anchors can be locked by tightening the locking nuts.

[0067] In this embodiment, the sleeve mechanism 120 includes a sleeve body, which includes a lower sleeve 720 and an upper sleeve 710 installed on the upper end of the lower sleeve 720. Both the upper sleeve 710 and the lower sleeve 720 are lattice steel frames with square cross sections. The sleeve body has a lifting channel inside for the vertical movement of the pole section. The lifting channel is provided with a lifting platform 730, which is constructed into a rectangular frame structure to drive the pole section 00 to move up and down. The top of the upper sleeve 710 is provided with a first constraint member for constraining the vertical movement of the pole section 00, and a second constraint member for constraining the vertical movement of the pole section 00 is provided between the lower sleeve 720 and the lifting platform 730. The entire frame mechanism 120 is fitted onto the outside of the pole body. The first constraint member provides vertical guidance constraint for the pole section 00 from the top to prevent the pole section 00 from tilting due to uneven force during the lifting process. The second constraint member provides vertical guidance constraint for the lifting platform 730 to maintain the vertical stability of the pole section 00 during the lifting process.

[0068] The first constraint component includes four first guide wheel assemblies, which are respectively installed at the four corners of the upper end face of the upper sleeve 710. The first guide wheel assembly includes a first guide wheel 810. The four first guide wheels 810 are respectively slidably engaged with the four outer corner surfaces of the boom section 00, which can ensure that the boom can move freely up and down along the axis during the lifting process, and also restrict its horizontal offset and sway.

[0069] The first guide wheel assembly also includes a guide wheel mounting plate 820 fixed on the upper end face of the upper sleeve 710. A guide wheel mounting seat 830 is fixed on the guide wheel mounting plate 820. The guide wheel mounting seat 830 includes two parallel first guide wheel mounting arms that are inclined toward the center of the upper sleeve 710 and extend upward. The first guide wheel 810 is mounted between the upper ends of the two first guide wheel mounting arms. A first guide groove 811 is formed on the outer side of the first guide wheel 810, which can slide and cooperate with the outer side of the rod section 00. A pull wire mounting plate 840 is also fixed on the guide wheel mounting plate 820. The pull wire mounting plate 840 is vertically set and has a pull wire for the pull wire of the sleeve frame to pass through at the upper end. After the base is installed and compacted, the lower sleeve frame 720 is connected to the mounting support on the base with bolts and the M16 high-strength bolts are tightened to ensure that the verticality deviation between the lower sleeve frame 720 and the base is ≤0.5°. The upper sleeve frame 710 is connected to the top of the lower sleeve frame 720, and the pull wire of the upper sleeve frame is adjusted so that the pull wire angle is ≤60° and the horizontal tension component reaches 25kN. The pull wire is fixed to the ground riveting to ensure the stability of the upper sleeve frame 710.

[0070] The second constraint includes four second guide wheel assemblies disposed on the upper surface of the lifting platform 730. Each second guide wheel assembly includes two second guide wheel mounting arms that extend upwards away from the center of the lower sleeve 720. A second guide wheel 910 is disposed between the upper ends of the two second guide wheel mounting arms. Vertically disposed guide round steel bars 920 are disposed at the four inner corner surfaces of the lower sleeve 720. A second guide groove 911 is formed on the outer surface of the second guide wheel 910, which can slide and cooperate with the outer surface of the guide round steel bar 920.

[0071] The lower end face of the lifting platform 730 is also equipped with four third guide wheel assemblies with the same structure as the second guide wheel assembly. Each third guide wheel assembly includes a third guide wheel 1610 that slides against the outer surface of the guide round steel 920. The second and third guide wheel assemblies are symmetrically arranged vertically on the lifting platform 730. The second and third guide wheel assemblies are arranged opposite each other on the upper and lower sides. The second guide wheel 910 and the third guide wheel 1610 cooperate with the guide steel pipe. During lifting or operation, the second guide wheel 910 and the third guide wheel 1610 roll along the surface of the guide round steel 920, achieving guidance, limiting, and stable operation of the lifting platform 730. The second guide wheel 910 and the third guide wheel 1610 are arranged in a double-wheel clamping configuration, with each acting on a corresponding position of the guide round steel 920, ensuring that the guide round steel 920 is always within the envelope and constraint range of the roller 2812. Compared to setting rollers 2812 on only one side, setting V-shaped wheels on both the top and bottom sides can form a more complete guide pair, thereby effectively preventing overturning and improving the stability and reliability during operation.

[0072] The lifting channel is also equipped with a drive mechanism for driving the lifting platform 730 to move up and down within the lifting channel. The drive mechanism includes two spiral screw assemblies symmetrically arranged on the upper end of the lower sleeve 720. The spiral screw assembly includes a screw 1010 that is axially vertically arranged and whose lower end is connected to the lifting platform 730. The lower end of the screw 1010 is connected to the lifting platform 730 through a flexible connection assembly 1030.

[0073] The lower frame 720 serves as the main installation platform, employing a rectangular frame steel structure. Its overall load-bearing capacity is designed based on the weight of a standard section of the mast. The drive mechanism on the lower frame 720 features a symmetrical layout, with screw jacks on both sides fixed to the lower frame 720. The lifting platform 730 within the channel is pulled up via the flexible connecting component 1030 at the bottom of the screw 1010. The overall structure is compact, and the force transmission path is clear. The flexible connection assembly 1030 includes a connection hole 1110 disposed on the lifting platform 730, a T-shaped column 1120 inserted into the connection hole 1110 from bottom to top, and a connection joint 1130 connecting the lead screw 1010 and the T-shaped column 1120. The lead screw 1010, the T-shaped column 1120 and the connection joint 1130 are coaxially arranged. The upper end of the connection joint 1130 is rotatably connected to the lower end of the lead screw 1010 through a first rotating pin 1140, and the lower end of the connection joint 1130 is rotatably connected to the upper end of the T-shaped column 1120 through a second rotating pin 1150. The axial direction of the first rotating pin 1140 is perpendicular to the axial direction of the second rotating pin 1150. The flexible connection assembly 1030 is designed as a floating joint, which allows the lifting platform 730 to oscillate within a small range, thereby releasing lateral internal forces and ensuring smooth lifting and lowering movements.

[0074] The upper sleeve 710 and the lower sleeve 720 are fixedly connected by bolts. The top of the upper sleeve 710 has a lifting outlet that communicates with the lifting channel and allows the boom section 00 to move vertically out of the lifting channel. The side of the lower sleeve 720 has a channel inlet that communicates with the lifting channel and allows the boom section 00 to enter the lifting channel horizontally. The boom section 00 to be lifted is fed into the lifting channel through the channel inlet and connected to the lifting platform 730. The drive mechanism is then activated, causing the lifting platform 730 to move upward along the lifting channel. Simultaneously, the upper sleeve 710... The first constraint member of the 10 constrains the boom section 00 to keep it vertical. The lifting platform 730 and its second constraint member keep the boom section 00 vertically and stably lifted to prevent overturning. When the boom section 00 is lifted to the specified height, the drive mechanism stops running, and the screw assembly self-locks the position of the lifting platform 730. The construction personnel connect and fix the boom section 00 to the installed boom body to complete one section addition operation. Then, the connection between the platform and the boom section 00 is released, and the drive mechanism is controlled to lower the lifting platform 730 to the initial position to prepare for the next lifting.

[0075] In this embodiment, the lifting mechanism 130 includes a lifting assembly mounted on a sleeve. The sleeve forms a lifting channel inside for the boom section 00 to move vertically. The lifting assembly is disposed in the lifting channel and is used to lift the boom section 00. The lifting assembly includes a lifting platform 730 and a driving mechanism for driving the lifting platform 730 to move up and down in the lifting channel. The driving mechanism includes two symmetrically arranged screw assemblies on the sleeve. The screw assembly includes a screw 1010 that is axially vertical and whose lower end is connected to the lifting platform 730, and a driving motor 1020 that drives the screw 1010 to move up and down and is fixed on the sleeve.

[0076] The screw assembly also includes a screw assembly mounting base, which has a mounting cavity 1210 for the screw 1010 to pass through vertically. The drive motor 1020 is fixed on the screw assembly mounting base and the motor shaft extends into the mounting cavity 1210. A worm located in the mounting cavity 1210 is connected to the motor shaft of the drive motor 1020. A worm wheel located in the mounting cavity 1210 and meshing with the worm is threaded onto the screw 1010. Two bearings coaxially arranged on the upper and lower sides of the worm wheel are also provided between the screw 1010 and the screw assembly mounting base.

[0077] The drive mechanism also includes a lead screw assembly mounting base fixed on the sleeve. The lead screw assembly mounting base includes a lead screw assembly fixing plate 1220 and a lead screw assembly adjusting plate 1230. The lead screw assembly fixing plate 1220 is fixed on the sleeve. The lead screw assembly adjusting plate 1230 is mounted on the lead screw assembly fixing plate 1220 by a plurality of adjusting bolt assemblies 1240. A lead screw through hole 1320 for the lead screw 1010 to pass through is formed in the middle of the lead screw assembly adjusting plate 1230. The plurality of adjusting bolt assemblies 1240 are used to adjust the distance between the lead screw assembly adjusting plate 1230 and the lead screw assembly fixing plate 1220 to adjust the installation level of the lead screw assembly adjusting plate 1230 on the lead screw assembly fixing plate 1220. The lead screw assembly mounting base is mounted on the upper end face of the lead screw assembly adjusting plate 1230.

[0078] The lead screw assembly adjusting plate 1230 includes a main body and four connecting lugs 1310 disposed on the side of the main body. The lead screw through hole 1320 is disposed at the center of the main body. The connecting lugs 1310 are provided with threaded holes 1330. There are four adjusting bolt assemblies 1240, each including a fixing bolt 1510 whose lower end is threadedly connected to the lead screw assembly fixing plate 1220 and an adjusting bolt 1520 sleeved on the outside of the fixing bolt 1510. The adjusting bolt 1520 is threadedly connected to the threaded hole 1330 of the connecting lug 1310 and its end can be pressed against the lead screw assembly fixing plate 1220. A washer sleeved on the fixing bolt 1510 is provided between the lower end face of the nut of the fixing bolt 1510 and the upper end face of the nut of the adjusting bolt 1520. A locking nut threadedly connected on the adjusting bolt 1520 is provided between the lower end face of the nut of the adjusting bolt 1520 and the upper end face of the lifting platform adjusting plate.

[0079] The lead screw assembly fixing plate 1220 includes two oppositely arranged long strips 1410 with L-shaped cross sections. Both ends of the long strips 1410 are provided with waist holes 1420 arranged along the length direction of the long strips 1410. The long strips 1410 are fixed to the outer wall of the sleeve by bolts passing through the waist holes 1420.

[0080] Example 2 like Figure 17-20As shown, based on Embodiment 1, this embodiment provides a base assembly, which includes a base mechanism 110. The base mechanism 110 includes a main base 210 for supporting the pole section 00 and the sleeve. The main base 210 includes four main base connecting beams 310 evenly distributed around the center of the main base 210. Each of the four main base connecting beams 310 includes a connecting end connected to the center of the main base 210 and an extension end extending away from the center of the main base 210. A connecting crossbeam 320 is fixed between each pair of adjacent main base connecting beams 310. The extension end is provided with a foot assembly for adjusting the height and level of the main base 210.

[0081] The four main base connecting beams 310 all adopt welded H-beams or I-beams, with their connecting ends abutting each other and welded to the center of the main base 210, forming a stable cross-shaped or double L-shaped cross structure to ensure the concentrated load-bearing capacity of the base for the support pole section 00. The connecting beam 320 serves as a transverse connecting component, with its two ends welded to the web of the adjacent main base connecting beam 310, which not only improves the overall torsional stiffness of the main base 210 but also connects the four main base connecting beams 310 into an integral load-bearing frame. The extension end is equipped with anchor components, enabling the base mechanism 110 to adapt to uneven terrain in the field. By independently adjusting each anchor component, the entire base can be quickly leveled without the need for large-area concrete foundation pouring.

[0082] A secondary base 220 is installed on each of the two connecting beams 320 arranged opposite each other along the length of the main base 210. The secondary bases 220 are used to support the winch and are symmetrically installed on both sides of the main base 210. The secondary base 220 includes a base body connected by multiple secondary base connecting beams 410. The upper and lower end faces of the base body are respectively provided with an upper panel 420 and a lower panel 430. Both the main base connecting beam 310 and the secondary base connecting beam 410 are I-beams. The upper panel 420 and the lower panel 430 are respectively interference-fitted with the upper flange plate and the lower flange plate of the main base connecting beam 310. One end of the upper panel 420 forms a winch mounting position, and the other end is fixed to the connecting beam 320 by multiple fastening bolts. The multiple fastening bolts are evenly arranged along the length of the connecting beam 320.

[0083] The auxiliary base 220 has a rectangular or trapezoidal frame shape. Internally, it consists of multiple auxiliary base connecting beams 410 welded together to form a cross-bracing system, giving the base body high specific stiffness. Both the upper panel 420 and the lower panel 430 are made of hollow steel plates, effectively reducing the weight of the auxiliary base while meeting strength and connection stiffness requirements. During installation, the auxiliary base 220 is initially positioned reliably in the vertical direction by using the interference fit between the upper and lower flanges of the upper and lower panels 420 and the main base connecting beam 310. It is then fixed by fastening bolts evenly distributed along the length of the connecting beam 320, forming a semi-rigid connection node between the auxiliary base 220 and the main base 210 that can transmit large loads and can be quickly disassembled and assembled. The winch installation position is set at the end of the upper panel 420 away from the main base 210, which shifts the winch's center of gravity outward, helping to balance the overturning moment generated during the lifting process. At the same time, the symmetrical arrangement ensures a reasonable angle for the wire ropes to exit on both sides.

[0084] The foot assembly includes a support plate 510 for supporting the extended end and a height adjustment component for adjusting the height of the support plate 510. The support plate 510 is configured as an upward-opening U-shaped plate, and the support plate 510 forms a U-shaped support groove 511, in which the extended end is supported. The height adjustment component includes an adjustment seat 610, at the center of which is an upwardly extending adjustment sleeve 620. An adjustment rod 630 is threadedly connected to the adjustment sleeve 620, and the upper end of the adjustment rod 630 extends out of the adjustment sleeve 620 and supports the support plate 510. 0 is installed on the upper end of the adjusting rod 630; the two sides of the support plate 510 are provided with opposing bolts 640 that can respectively abut against the two sides of the extension end, the bolts 640 are axially horizontal and threaded to the support plate 510; the two sides of the extension end are respectively provided with limiting plates 1710, the limiting plates 1710 are U-shaped bent plates with openings facing inward; the limiting plates 1710 are provided with strip-shaped limiting holes 1810 arranged vertically, the width of the strip-shaped limiting holes 1810 is transitionally fitted with the bolts 640 and the length is greater than the width.

[0085] The support plate 510 is made of steel plate by bending or welding. The limiting plate 1710 is pre-welded to the web or flange side of the extension end of the main base connecting beam 310. The strip-shaped limiting hole 1810 on it provides a definite passage position and vertical adjustment margin for the tightening bolt 640. After the extension end is placed in the U-shaped support groove 511, tighten the tightening bolts 640 on both sides. The tightening bolts 640 pass through the strip-shaped limiting hole 1810 and press against the side of the extension end. This can prevent the extension end from moving horizontally, and the vertical length of the strip-shaped limiting hole 1810 allows the foot assembly to have a slight vertical sliding relative to the main base 210 during the height adjustment process, avoiding excessive assembly stress caused by height adjustment.

[0086] The lower end face of the support plate 510 is provided with a sliding rod 650 extending downward and slidably connected within the adjusting rod 630. The sliding rod 650 is equipped with an upper thrust bearing 660, a lower thrust bearing 670, and an annular pressure sensor 680 disposed between the upper thrust bearing 660 and the lower thrust bearing 670. The upper end face of the upper thrust bearing 660 abuts against the lower end face of the support plate 510, and the lower end face of the lower thrust bearing 670 abuts against the lower end face of the adjusting rod 630. The upper end face of the adjusting rod 630 is provided with an annular mounting groove 690 with a vertical L-shaped cross-section for mounting the lower thrust bearing 670.

[0087] The slide rod 650 and the support plate 510 can be connected by welding, threading, or integral molding to ensure their coaxiality. The upper and lower thrust bearings axially clamp the annular pressure sensor 680 in the middle, so that the sensor only bears pure axial load and is not affected by bending moment, resulting in high measurement accuracy. The annular pressure sensor 680 has a built-in independent battery and wireless transmission module. During installation or construction, it sends the real-time load-bearing capacity data of each foot component to a handheld monitoring terminal. Based on this, the construction personnel can determine whether there is an off-center load on the base and make timely adjustments to prevent foundation settlement or structural deformation caused by local overload.

[0088] The adjusting rod 630 includes a rotating section 520 and a threaded connection section 540 distributed vertically. The outer side wall of the rotating section 520 is provided with a rotating handle 530. The lower end of the threaded connection section 540 is threaded into the adjusting sleeve 620, and a fastening nut 541 that can abut against the upper end face of the adjusting sleeve 620 is threaded onto the threaded connection section 540.

[0089] The diameter of the rotating section 520 can be slightly larger than that of the threaded connection section 540 to form a step, facilitating the welding and installation of the rotating handle 530. The rotating handle 530 can be designed as a symmetrical radial extension rod for easy manual application of force. After adjustment, tighten the fastening nut 541 downwards to the upper end face of the adjusting sleeve 620 to prevent loosening of the threaded pair and to prevent the adjusting rod 630 from slightly rotating under the vibration of the equipment during operation.

[0090] The foot assembly also includes a leveling component for leveling the adjusting seat 610. The adjusting seat 610 includes an adjusting seat base plate 611, and an adjusting sleeve 620 is disposed at the center of the adjusting seat base plate 611. The leveling component includes a ground base plate 550, and a positioning pin 561 is provided on the upper end surface of the ground base plate 550. The adjusting seat base plate 611 is provided with a positioning pin hole 562 that cooperates with the positioning pin 561 and has an inner diameter larger than the outer diameter of the positioning pin 561. The adjusting seat base plate 611 is also evenly provided with a plurality of leveling bolts 570 whose lower end faces can abut against the upper surface of the adjusting seat base plate 611.

[0091] The base plate 550 is the bearing base plate of the foot assembly. Anti-slip texture or anti-slip groove 552 can be provided on the bottom. The clearance fit between the positioning pin 561 and the positioning pin hole 562 allows the adjusting seat 610 to have slight horizontal movement and tilt relative to the base plate 550. While playing an auxiliary positioning role, it ensures that it provides freedom for leveling. The leveling bolts 570 are evenly arranged around the circumference. By rotating each leveling bolt 570, the local height of the adjusting seat base plate 611 can be changed, thereby adjusting the adjusting seat 610 together with the adjusting sleeve 620 on it to a horizontal position. A circular bubble level can be embedded in the upper surface of the adjusting seat base plate 611, which serves as a visual indicator of the leveling index when performing the leveling operation.

[0092] An annular abutment groove 551 is provided on the upper end surface of the ground base plate 550. The lower end surfaces of multiple leveling bolts 570 can abut against the bottom surface of the annular abutment groove 551. The bottom end face of the leveling bolt 570 is provided with an arc-shaped abutment end 571. The ground surface of the arc-shaped abutment end 571 is an outwardly convex arc-shaped contact surface. An arc-shaped support groove 2020 is provided in the annular abutment groove 551 at the position corresponding to the arc-shaped abutment end 571. The bottom of the arc-shaped support groove 2020 is an inwardly concave arc-shaped surface that matches the arc-shaped abutment end 571.

[0093] The arc-shaped abutment end 571 and the arc-shaped support groove 2020 form a spherical contact pair. When the leveling operation is performed by rotating the leveling bolt 570, the leveling bolt 570 will tilt to a certain extent relative to the base plate 611 of the adjusting seat. At this time, through the cooperation between the arc-shaped abutment end 571 and the arc-shaped support groove 2020, the leveling bolt 570 can adapt to the angle change between the bolt axis and the normal of the support surface when the base plate 611 of the adjusting seat tilts while transmitting axial force, thus avoiding the bolt bending and ensuring the smoothness of the adjustment seat 610 posture adjustment and the safety of the bolt under force when performing the leveling operation of the foot assembly.

[0094] The base plate 611 of the adjusting seat is provided with multiple leveling through holes 1910. The leveling through holes 1910 are stepped through holes, including an upper through hole and a lower enlarged hole with a diameter larger than the upper through hole. The lower enlarged hole is provided with an arc-shaped movable block 1920 with an outwardly convex arc surface. The center of the arc-shaped movable block 1920 is provided with an internal thread hole that is threaded to the leveling bolt 570. The lower surface of the base plate 611 is provided with a sealing ring 1930 that is embedded in the lower enlarged hole. The leveling bolt 570 passes through the upper through hole and the sealing ring 1930 in sequence with gaps. The inner wall of the lower enlarged hole and the sealing ring 1930 together form an arc-shaped receiving cavity 2010 for accommodating the arc-shaped movable block 1920. The outwardly convex arc surface of the arc-shaped movable block 1920 is rotatably engaged with the inner wall of the arc-shaped movable block 2010 in the arc-shaped receiving cavity.

[0095] In this embodiment, the curved surface movable block 1920 can swing in a certain angle within the curved surface receiving cavity 2010. When rotating each leveling bolt 570, as the leveling bolt 570 moves closer and further out, and as the tilt angle of the adjusting seat base plate 611 changes, the angle of the axis of the leveling bolt 570 relative to the plane of the adjusting seat base plate 611 also changes. Through the omnidirectional swing of the curved surface movable block 1920 within the curved surface receiving cavity 2010, the leveling bolt 570 and the curved surface movable block 1920 can always maintain a good thread fit, avoiding damage to the structure and the impact on the adjustment accuracy caused by thread jamming and bolt bending stress during the leveling process.

[0096] This embodiment provides a base assembly method, which is based on the above-described base assembly and includes: Determine the construction area for the mounting base assembly, compact and level the construction area, and excavate a pit at the installation position corresponding to the foot component. The bottom surface of the pit is set as a bearing slope that slopes towards the center of the main base. Lay and compact the foundation pad into the pit, place the anchor components into the pit, and ensure that the ground surface of the anchor components is in contact with the bearing slope. Install the main base 210 and place the extended end of the main base 210 connecting beam 310 into the U-shaped support groove 511. Then tighten the anchor bolts 640 of the foot assembly so that the anchor bolts 640 pass through the strip-shaped limiting hole 1810 on the limiting plate 1710 and abut against both sides of the extended end of the main base connecting beam 310, thus completing the initial positioning and clamping of the base mechanism 110. Install the auxiliary base 220 and place it on the two connecting beams 320 respectively, so that the upper panel 420 and lower panel 430 of the auxiliary base 220 are interference-fitted with the upper flange plate and lower flange plate of the main base connecting beam 310 respectively, and fix one end of the auxiliary base 220 to the connecting beam 320 by multiple fastening bolts, and fix the winch on the winch mounting position of the upper panel 420. By rotating the rotating handle 530 on the outer wall of the adjusting rod 630, the adjusting rod 630 is raised and lowered in the threaded position of the adjusting sleeve 620, and the base mechanism 110 is adjusted to the set initial height and horizontal state. Then, the fastening nut 541 is tightened to lock the adjusting rod 630. Rotate the leveling bolts 570 on the base plate 611 until the base plate 611 reaches a horizontal state, and monitor the load-bearing capacity of each foot component through the annular pressure sensor 680 to complete the assembly of the base assembly.

[0097] The foundation pad can be made of graded crushed stone, which is compacted in layers. The pit excavated at the installation position of the anchor component is set as a bearing slope inclined towards the center of the main base. This makes the weight of the anchor component and the external load generate a component force in the direction of the center of the base. When the anchor component is placed in the pit, it will sink or shift slightly due to the vertical load of the superstructure. By setting the bearing slope, a horizontal component force is generated towards the center, which helps the anchor component to find its own center and prevents the anchor from sliding outward under huge construction loads, thereby improving the overall anti-overturning stability.

[0098] Simultaneously, after initial height and level adjustments, before installing the sub-base and winch equipment, the bearing capacity of the anchor bolts is monitored and adjusted again using pressure sensors to check the uniformity of the bearing capacity at each support point. If the deviation exceeds the standard, the anchor bolt height is adjusted a second time until the bearing capacity distribution meets the design requirements. At this point, upward prestress can be applied to the anchor bolt assembly to further eliminate structural gaps and ensure the overturning stiffness of the entire base structure. The assembly method in this embodiment ensures that the base maintains good levelness and stability under high loads and complex geological conditions, guaranteeing that the overall structure maintains good levelness and stability under high loads and complex geological conditions.

[0099] Example 3 like Figure 21-22 As shown, based on Embodiment 1, this embodiment provides a sleeve assembly, which includes a sleeve mechanism 120 and a lifting mechanism 130. The sleeve mechanism 120 includes a sleeve body, which includes a lower sleeve 720 and an upper sleeve 710. Both the upper sleeve 710 and the lower sleeve 720 are lattice steel frames with square cross sections. A lifting channel is formed inside the sleeve body for the pole section to move vertically. The lifting mechanism 130 includes a lifting platform 730 for driving the pole section to move up and down in the lifting channel, and a driving mechanism for driving the lifting platform 730 to move up and down in the lifting channel. The top of the upper sleeve 710 is provided with a first constraint member for constraining the vertical movement of the pole section, and a second constraint member for constraining the vertical movement of the pole section is provided between the lower sleeve 720 and the lifting platform 730.

[0100] The upper frame 710 and the lower frame 720 are connected by welding or bolts to form a lattice-type three-dimensional truss, which has the characteristics of high bending and torsional stiffness and light weight. The first constraint member provides horizontal constraint on the pole section at the top of the frame mechanism 120, and the second constraint member provides horizontal constraint on the lifting platform 730. The two work together to keep the pole section vertical throughout the lifting process, preventing tilting and jamming caused by eccentric load or wind load.

[0101] The first constraint component includes four first guide wheel assemblies respectively installed at the four corners of the upper end face of the upper sleeve. The first guide wheel assembly includes a first guide wheel 810, and the four first guide wheels 810 are slidably engaged with the four outer corner faces of the pole section. The first guide wheel assembly also includes a guide wheel mounting plate 820 fixed to the upper end face of the upper sleeve. A guide wheel mounting seat 830 is fixed on the guide wheel mounting plate 820. The guide wheel mounting seat 830 includes two parallel first guide wheel mounting arms that are inclined towards the center of the upper sleeve 710 and extend upward. The first guide wheel 810 is installed between the upper ends of the two first guide wheel mounting arms. A first guide groove 811 is formed on the outer side of the first guide wheel 810, which can slidably engage with the outer side of the pole section. A pull wire mounting plate is also fixed on the guide wheel mounting plate 820. The pull wire mounting plate is vertically arranged and has a sleeve pull wire hole at the upper end for the sleeve pull wire to pass through.

[0102] The second constraint includes four second guide wheel assemblies disposed on the upper end surface of the lifting platform 730. Each second guide wheel assembly includes two second guide wheel mounting arms that extend upwards away from the center of the lower sleeve and are inclined away from it. A second guide wheel 910 is disposed between the upper ends of the two second guide wheel mounting arms. Vertically disposed guide round steel bars 920 are disposed at the four inner corner surfaces of the lower sleeve. A second guide groove 911 is formed on the outer surface of the second guide wheel 910, which can slide and cooperate with the outer surface of the guide round steel bar 920. Four third guide wheel assemblies with the same structure as the second guide wheel assemblies are also disposed on the lower end surface of the lifting platform 730. Each third guide wheel assembly includes a third guide wheel 1610 that slides and cooperates with the outer surface of the guide round steel bar 920. The second guide wheel assemblies and the third guide wheel assemblies are arranged symmetrically on the lifting platform 730.

[0103] The drive mechanism includes two symmetrically arranged screw assemblies on the upper end of the lower sleeve. Each screw assembly includes a screw 1010 that is axially vertical and whose lower end is connected to the lifting platform 730. The lower end of the screw 1010 is connected to the lifting platform 730 through a flexible connection assembly 1030.

[0104] The flexible connection assembly 1030 includes a connection hole 1110 disposed on the lifting platform 730, a T-shaped column 1120 inserted into the connection hole 1110 from bottom to top, and a connection joint 1130 connecting the lead screw 1010 and the T-shaped column 1120. The lead screw 1010, the T-shaped column 1120 and the connection joint 1130 are coaxially arranged. The upper end of the connection joint 1130 is rotatably connected to the lower end of the lead screw 1010 through a first rotating pin 1140, and the lower end of the connection joint 1130 is rotatably connected to the upper end of the T-shaped column 1120 through a second rotating pin 1150. The axial direction of the first rotating pin 1140 is perpendicular to the axial direction of the second rotating pin 1150.

[0105] The drive mechanism also includes a lead screw assembly mounting base fixed on the sleeve body. The lead screw assembly mounting base includes a lead screw assembly fixing plate 1220 and a lead screw assembly adjusting plate 1230. The lead screw assembly fixing plate 1220 is fixed on the sleeve, and the lead screw assembly adjusting plate 1230 is mounted on the lead screw assembly fixing plate 1220 by a plurality of adjusting bolt assemblies 1240. A lead screw through hole 1320 for the lead screw 1010 to pass through is formed in the middle of the lead screw assembly adjusting plate 1230. The plurality of adjusting bolt assemblies 1240 are used to adjust the distance between the lead screw assembly adjusting plate 1230 and the lead screw assembly fixing plate 1220 to adjust the installation level of the lead screw assembly adjusting plate 1230 on the lead screw assembly fixing plate 1220. The lead screw assembly mounting base is mounted on the upper end face of the lead screw assembly adjusting plate 1230.

[0106] The lead screw assembly adjusting plate 1230 includes a main body and four connecting lugs 1310 disposed on the side of the main body. The lead screw through hole 1320 is disposed at the center of the main body. The connecting lugs 1310 are provided with adjusting through holes 2110. There are four adjusting bolt assemblies 1240, each including a fixing bolt 1510 whose lower end is threaded to the lead screw assembly fixing plate 1220 and an adjusting bolt 1520 sleeved on the outside of the fixing bolt 1510. The lower end face of the nut of the fixing bolt 1510 abuts against the upper end face of the nut of the adjusting bolt 1520, and the lower end of the adjusting bolt 1520 abuts against the upper surface of the lead screw assembly fixing plate 1220.

[0107] During adjustment, first, rotate each fixing bolt 1510 to connect its lower thread to the lead screw assembly fixing plate 1220, thus pre-fixing the lead screw assembly adjusting plate 1230 relative to the lead screw assembly fixing plate 1220. At this time, a certain amount of clearance remains between the lower end face of the nut of the fixing bolt 1510 and the upper end face of the nut of the adjusting bolt 1520, and the lower end of the adjusting bolt 1520 abuts against the upper surface of the lead screw assembly fixing plate 1220. Then, adjust the distance between the lead screw assembly adjusting plate 1230 and the lead screw assembly fixing plate 1220 by rotating the adjusting bolt 1520. The spacing is adjusted to fine-tune the level of the lead screw assembly mounting base. During this process, the lower end of the adjusting bolt 1520 is always kept abutting against the upper surface of the lead screw assembly fixing plate 1220. After adjustment, the adjusting bolt 1520 is kept stationary and the fixing bolt 1510 is tightened, so that the lower end face of the nut of the fixing bolt 1510 abuts against the upper end face of the nut of the adjusting bolt 1520, and the lower end of the adjusting bolt 1520 abuts against the upper surface of the lead screw assembly fixing plate 1220, so that the lead screw assembly fixing plate 1220 and the lead screw assembly adjusting plate 1230 become a rigid whole.

[0108] The screw assembly adjusting plate 1230 has a receiving cavity 2220 with an inner arc surface at the corresponding adjusting through hole 2110. The receiving cavity 2220 has a nut 2210 with the same curvature of the outer surface as the inner surface of the receiving cavity 2220. The nut 2210 is sleeved on the adjusting bolt 1520 and is threadedly engaged with the adjusting bolt 1520.

[0109] The nut 2210 with arc surface fit can swing at a small angle within the receiving cavity 2220. When the axis of the adjusting bolt 1520 is slightly inclined relative to the normal of the surface of the lead screw assembly adjusting plate 1230, the additional bending moment of the threaded pair is avoided, ensuring smooth adjustment and preventing damage to the threads.

[0110] The upper sleeve 710 and the lower sleeve 720 are fixedly connected by bolts; the top of the upper sleeve 710 has a lifting outlet that communicates with the lifting channel and is used for the pole section to move out of the lifting channel in the vertical direction, and the side of the lower sleeve 720 has a channel inlet that communicates with the lifting channel and is used for the pole section to enter the lifting channel in the horizontal direction.

[0111] Example 4 like Figure 23-26 As shown, based on Embodiment 1, this embodiment provides a dual-screw lifting assembly, which includes a lifting component mounted on a sleeve mechanism 120. The sleeve mechanism 120 has an internal lifting channel for the vertical movement of the boom section. The lifting component is disposed within the lifting channel and used to lift the boom section. The lifting component includes a lifting platform 730 and a drive mechanism for driving the lifting platform 730 to move up and down within the lifting channel. The drive mechanism includes two symmetrically arranged helical screw assemblies on the sleeve mechanism 120. Each helical screw assembly includes a screw 1010 axially vertically arranged with its lower end connected to the lifting platform 730, and a drive motor 1020 for driving the screw 1010 to move up and down and fixed to the sleeve mechanism 120. By employing a dual-screw synchronous lifting method, the symmetrically arranged screws 1010 jointly drive the lifting platform 730, effectively suppressing the tilting problem of the lifting platform 730 caused by eccentric loading compared to a single-screw structure.

[0112] The lifting platform 730 has a rectangular frame structure and an internal mounting position for fixing the bottom of the support rod section. The lower end of the lead screw 1010 is connected to the lifting platform 730 via a flexible connection assembly 1030. The flexible connection assembly 1030 includes a connection hole 1110 on the lifting platform 730, a T-shaped post 1120 inserted into the connection hole 1110 from bottom to top, and a connection joint 1130 connecting the lead screw 1010 and the T-shaped post 1120. The lead screw 1010, the T-shaped post 1120, and the connection joint 1130 are coaxially arranged. The upper end of the connection joint 1130 is rotatably connected to the lower end of the lead screw 1010 via a first rotating pin 1140, and the lower end of the connection joint 1130 is rotatably connected to the upper end of the T-shaped post 1120 via a second rotating pin 1150. The axial direction of the first rotating pin 1140 is perpendicular to the axial direction of the second rotating pin 1150.

[0113] The screw assembly also includes a screw assembly mounting base, which has a mounting cavity 1210 for the screw 1010 to pass through vertically. The drive motor 1020 is fixed on the screw assembly mounting base and the motor shaft extends into the mounting cavity 1210. A worm located in the mounting cavity 1210 is connected to the motor shaft of the drive motor 1020. A worm wheel located in the mounting cavity 1210 and meshing with the worm is threaded onto the screw 1010. Two bearings coaxially arranged on the upper and lower sides of the worm wheel are also provided between the screw 1010 and the screw assembly mounting base.

[0114] The worm gear transmission has a self-locking function. When the drive motor 1020 stops, the lead screw 1010 cannot rotate in the opposite direction and be pressed down by the load, ensuring that the lifting platform 730 can be reliably suspended at any position without the need for an additional brake. In addition, the support method of upper and lower double bearings makes the lead screw 1010 form a simply supported or fixed support constraint in the transmission section, which improves the rotational accuracy and bending resistance of the lead screw 1010.

[0115] The drive mechanism also includes a lead screw assembly mounting base fixed to the sleeve mechanism 120. The lead screw assembly mounting base includes a lead screw assembly fixing plate 1220 and a lead screw assembly adjusting plate 1230. The lead screw assembly fixing plate 1220 is fixed to the sleeve mechanism 120, and the lead screw assembly adjusting plate 1230 is mounted on the lead screw assembly fixing plate 1220 by multiple adjusting bolt assemblies 1240. A lead screw through hole 1320 for the lead screw 1010 to pass through is formed in the middle of the lead screw assembly adjusting plate 1230. The multiple adjusting bolt assemblies 1240 are used to adjust the distance between the lead screw assembly adjusting plate 1230 and the lead screw assembly fixing plate 1220 to adjust the installation level of the lead screw assembly adjusting plate 1230 on the lead screw assembly fixing plate 1220. The lead screw assembly mounting base is mounted on the upper end face of the lead screw assembly adjusting plate 1230. By adjusting the level, the axis of the lead screw 1010 can be kept parallel to the axis of the guide round steel 920, eliminating additional lateral forces during lifting movement.

[0116] The upper surface of the lifting platform 730 is provided with four second guide wheel assemblies. The second guide wheel assembly includes two second guide wheel mounting arms that extend upwards away from the center of the lower sleeve 720. A second guide wheel 910 is provided between the upper ends of the two second guide wheel mounting arms. Vertically arranged guide round steel 920 is provided at the four inner corner surfaces of the lower sleeve 720. A second guide groove 911 is formed on the outer surface of the second guide wheel 910, which can slide and cooperate with the outer surface of the guide round steel 920.

[0117] The lower ends of the two second guide wheel mounting arms are rotatably connected to the first connection points of the guide wheel mounting base 2510. The guide wheel mounting base 2510 is plate-shaped and fixed to the upper surface of the lifting platform 730. A mounting arm connecting plate 2520 is provided in the middle of the upper side of the second guide wheel mounting arm. The two ends of the mounting arm connecting plate 2520 are fixed to the two second guide wheel mounting arms and are perpendicular to the two second guide wheel mounting arms. A mounting arm adjusting assembly 2530 is provided between the two second guide wheel mounting arms. An upper connecting seat 2610 is provided at the upper end of the mounting arm adjusting assembly 2530. The upper end of the upper connecting seat 2610 is rotatably connected to the lower side of the mounting arm connecting plate 2520. A lower connecting seat 2620 is provided at the lower end of the mounting arm adjusting assembly 2530. The lower end of the lower connecting seat 2620 is rotatably connected to the second connection point of the guide wheel mounting base 2510. The second connection point is not collinear with the two first connection points.

[0118] The second guide wheel assembly is fixed to the guide wheel mounting base 2510 and, through the guide wheel mounting base 2510, to the four corners of the lifting platform 730. The lower ends of a pair of second guide wheel mounting arms of each second guide wheel assembly are hinged to the guide wheel mounting base 2510, with the hinge point being the first connection point. The lower end of the mounting arm adjusting assembly 2530 is also hinged to the guide wheel mounting base 2510, with the hinge point being the second connection point. The two first connection points and the second connection point form a triangle on the upper surface of the guide wheel mounting base 2510. When the distance between the upper end and the lower end of the mounting arm adjusting assembly 2530 changes, the second guide wheel mounting arm rotates relative to the guide wheel mounting base 2510 around the first connection point.

[0119] The mounting arm adjustment assembly 2530 includes two sets of support arms arranged side by side. Each set of adjustment arms includes a first upper support arm 2631, a second upper support arm 2632, a first lower support arm 2633, and a second lower support arm 2634. The first upper support arm 2631, the second upper support arm 2632, the first lower support arm 2633, and the second lower support arm 2634 are of equal length and interconnected to form a parallelogram. The upper ends of the first upper support arm 2631 and the second upper support arm 2632 are rotatably connected to the lower end of the upper connecting seat 2610, and the upper ends of the first upper support arm 2631 and the second upper support arm 2632 are respectively provided with teeth, and the teeth of the first upper support arm 2631 mesh with the teeth of the second upper support arm 2632. The lower ends of the first lower support arm 2633 and the second lower support arm 2634 are rotatably connected to the upper end of the lower connecting seat 2620, and... The lower ends of the first lower support arm 2633 and the second lower support arm 2634 are respectively provided with teeth, and the teeth of the first lower support arm 2633 and the teeth of the second lower support arm 2634 mesh with each other; the lower end of the first upper support arm 2631 is rotatably connected to the upper end of the first lower support arm 2633, and a fixing sleeve 2640 is provided between the two sets of support arms at the rotatable connection between the lower end of the first upper support arm 2631 and the upper end of the first lower support arm 2633; the lower end of the second upper support arm 2632 is rotatably connected to the upper end of the second lower support arm 2634, and a nut sleeve is provided between the two sets of support arms at the rotatable connection between the lower end of the second upper support arm 2632 and the upper end of the second lower support arm 2634; the mounting arm adjustment assembly 2530 is provided with an adjusting screw 2650 that passes through the fixing sleeve 2640 and the nut sleeve between the two sets of support arms, and the adjusting screw 2650 is threadedly engaged with the nut sleeve.

[0120] By rotating the adjusting screw 2650, the nut sleeve moves along the screw axis, thereby causing the parallelogram-shaped support arm assembly to undergo synchronous symmetrical deformation, thus changing the distance between the upper connecting seat 2610 and the lower connecting seat 2620, which in turn changes the distance between the upper end and the lower end of the mounting arm adjusting assembly 2530. During the process, the teeth of the first upper support arm 2631 mesh with the teeth of the second upper support arm 2632, and the teeth of the first lower support arm 2633 mesh with the teeth of the second lower support arm 2634, ensuring the synchronous rotation of the first upper support arm 2631 and the second upper support arm 2632, and the first lower support arm 2633 and the second lower support arm 2634, thereby achieving stepless adjustment, and the position can be maintained by thread self-locking after adjustment.

[0121] The lower end face of the lifting platform 730 is also provided with four third guide wheel assemblies with the same structure as the second guide wheel assembly. The third guide wheel assembly includes a third guide wheel 1610 that slides with the outer side of the guide round steel. The second guide wheel assembly and the third guide wheel assembly are arranged symmetrically on the lifting platform 730. The third guide wheel assembly includes two third guide wheel mounting arms that extend downwards away from the center of the lower sleeve 720 and are inclined downwards. The third guide wheel 1610 is provided between the lower ends of the two third guide wheel mounting arms. The four inner corner faces of the lower sleeve 720 are provided with vertically arranged guide round steels 920. The outer side of the third guide wheel 1610 has a third guide groove that can slide with the outer side of the guide round steel 920.

[0122] The structure of the third guide wheel assembly on the lower end face of the lifting platform 730 is exactly the same as that of the second guide wheel assembly on its upper end face. That is, the third guide wheel assembly is also fixed on the guide wheel mounting seat 2510 and fixed to the four corners of the lower end face of the lifting platform 730 by the guide wheel mounting seat 2510. The upper ends of the third guide wheel mounting arms are rotatably connected to the guide wheel mounting seat 2510. The tilt angle of the third guide wheel mounting arms relative to the lifting platform 730 can be adjusted and fixed by the mounting arm adjustment assembly 2530.

[0123] By adjusting the tilt angle of the second guide wheel mounting arm or the third guide wheel mounting arm using the mounting arm adjustment assembly 2530, it can be ensured that the second guide groove 911 of the second guide wheel or the third guide groove of the third guide wheel 1610 respectively fits against the surface of the guide round steel 920. Specifically, the second guide wheel 910 and the guide round steel 920 fit against the second contact point on the guide round steel 920, and the third guide wheel 1610 and the guide round steel 920 fit against the third contact point on the guide round steel 920. In this embodiment, by adjusting the tilt angle of the second guide wheel mounting arm or the third guide wheel mounting arm relative to the horizontal plane using the mounting arm adjustment assembly 2530, the angle between the line connecting the second and third contact points at each corner of the lifting platform 730 and the vertical direction is changed, thereby changing the levelness of the reference surface of the lifting platform 730.

[0124] This embodiment provides a method for assembling a dual-screw lifting assembly, which is based on the above-described dual-screw lifting assembly and includes: Two symmetrically arranged screw assemblies are mounted on the sleeve mechanism 120. The screw assembly mounting base of the screw assembly is fixed by the screw assembly fixing plate 1220, and the screw 1010 is vertically inserted into the mounting cavity 1210 of the screw assembly mounting base. The drive motor 1020 is fixed on the screw assembly mounting base, so that the drive motor 1020 can drive the worm to mesh with the worm wheel on the screw 1010 to drive the screw 1010 to move up and down. By adjusting multiple adjusting bolt assemblies 1240, the distance between the screw assembly adjusting plate 1230 and the screw assembly fixing plate 1220 is adjusted, and the levelness of the screw assembly adjusting plate 1230 is changed, so as to make a preliminary adjustment to the overall levelness of the screw assembly. The lifting platform 730 is placed in the lifting channel. Four second guide wheel assemblies are installed at intervals at the four corners of the lifting platform 730, and four third guide wheel assemblies are symmetrically installed on the lower end surface of the lifting platform 730. The second guide wheel 910 in the second guide wheel assembly and the third guide wheel 1610 in the third guide wheel assembly are respectively slidably engaged with the side of the guide round steel 920 on the sleeve mechanism 120. The lower end of the lead screw 1010 is rotatably connected to the upper end of the connecting joint 1130 via the first rotating pin 1140, and the lower end of the connecting joint 1130 is rotatably connected to the upper end of the T-shaped column 1120 via the second rotating pin 1150, so that the axis of the first rotating pin 1140 is perpendicular to the axis of the second rotating pin 1150; the T-shaped column 1120 is inserted into the connecting hole 1110 of the lifting platform 730 from bottom to top, thus completing the flexible connection between the lead screw 1010 and the lifting platform 730. By rotating the adjusting screw 2650 in the middle of the mounting arm adjusting assembly 2530 of the four second guide wheel assemblies, the threaded engagement between the adjusting screw 2650 and the nut sleeve is used to stretch or compress the parallelogram connecting rod structure composed of the first upper support arm 2631, the second upper support arm 2632, the first lower support arm 2633, and the second lower support arm 2634, thereby adjusting the mounting arm angle of each second guide wheel assembly. The same method is used to adjust the mounting arm angle of each third guide wheel assembly, thereby changing the levelness of the lifting platform 730 in the lifting channel. Fix the bottom of the boom section in the installation position of the lifting platform 730, start the drive motor 1020 to carry out a lifting test run, and confirm that each guide wheel and guide round steel cooperate smoothly without jamming. After the screw 1010 runs smoothly, the assembly of the double screw lifting assembly is completed.

[0125] The second and third guide wheel assemblies are arranged in a mirror-symmetrical manner above and below the lifting platform 730. They act on the upper and lower areas of the guide round steel 920 respectively, forming an envelope and constraint on the guide round steel. Through this double-wheel clamping arrangement, combined with the fine adjustment of the fit achieved by the mounting arm adjustment assembly 2530, the lifting platform 730 can be effectively prevented from overturning during load lifting, thus improving the stability and reliability of the lifting mechanism.

[0126] Example 5 Based on embodiments 1-4, this embodiment provides a method for controlling the lifting of a pole of a modular tower erection equipment, which includes: Place and fix the boom section in the middle of the lifting platform 730, and make the first constraint member in a state that constrains the vertical movement of the boom section; Adjust the installation level of the two drive motors 1020 respectively so that the axis of the lead screw 1010 is in a vertical state; Adjust the levelness of the reference surface of the lifting platform 730 so that the middle support rod section of the lifting platform 730 is in a vertical state; The lifting mechanism 130 is activated, driving the lifting platform 730 to move vertically along the lifting channel. The positions of the two lead screws 1010 are obtained in real time, and the two drive motors 1020 are synchronously controlled by cross-coupling control, so that the two lead screws 1010 rise and fall synchronously.

[0127] This embodiment combines mechanical leveling with electrical synchronization to ensure the pole section remains vertical throughout the lifting process of the modular tower erection equipment. Before officially starting the lifting mechanism, the bearing capacity of each anchor component is checked using a ring pressure sensor 680 to confirm that the base mechanism 110 has not experienced uneven settlement. Simultaneously, the rotating pins in the flexible connection assembly 1030 are checked for smooth and unobstructed rotation, ensuring that the lower end of the lead screw can adaptively release slight sway during lifting. If abnormal noise or significant friction occurs between the first guide wheel 810 on the upper part of the pole section and the pole section during lifting, the machine should be stopped immediately, and the tension of the upper frame 710's guy wire and the condition of the first guide wheel assembly should be rechecked.

[0128] In this embodiment, the boom section is placed and fixed in the middle of the lifting platform 730, and the first constraint member is in a state that constrains the vertical movement of the boom section, specifically including: It was confirmed that the second and third guide wheel assemblies of the lifting platform 730 were in a sliding engagement with the guide round steel 920. Place the mast section in the middle of the lifting platform and fix the two together. Confirm that the four first guide wheels 810 are in a state of sliding engagement with the four outer corner surfaces of the pole joint.

[0129] After confirming that the second and third guide wheel assemblies are in sliding engagement with the guide round steel 920, ensuring that the lifting platform 730 is correctly guided and constrained within the lifting channel, the boom section is fixedly connected to the lifting platform 730, and the boom section moves synchronously with the lifting platform 730. At this time, the bottom of the boom section is supported and vertically limited by the lifting platform 730, and the upper part is supported by the sliding engagement of the four first guide wheels with their four corner surfaces. The upper and lower support points constrain the upward trajectory of the boom section in the vertical direction. During the subsequent lifting process, the boom section can rise and fall freely without uncontrollable horizontal deviation or torsion, providing reliable attitude constraints for the lifting movement.

[0130] In this embodiment, the installation level of the two drive motors 1020 is adjusted respectively to ensure that the axis of the lead screw 1010 is in a vertical state. Specifically, this includes: Adjust the positions of the two drive motors 1020 so that they are on the same horizontal plane; Adjust each adjusting bolt assembly 1240 to change the distance between the lead screw assembly adjusting plate 1230 and the lead screw assembly fixing plate 1220 at each adjusting bolt assembly 1240, so as to change the installation level of the drive motor 1020 until the corresponding lead screw 1010 is in a vertical state. By starting the two drive motors 1020, the corresponding lead screws 1010 are moved up and down, so that the lower ends of the two lead screws 1010 move up and down until the reference surface of the support 730 is raised to be horizontal.

[0131] First, ensure that both drive motors 1020 are on the same horizontal plane to avoid initial position deviation due to installation height differences. Then, using the adjustable gap between the lead screw assembly adjusting plate 1230 and the lead screw assembly fixing plate 1220, precisely adjust the installation level of the drive motor 1020 and the lead screw 1010 to ensure that the axis of the lead screw 1010 is parallel to the axis of the guide round steel 920. Finally, start the drive motor 1020 to fine-tune the position of the lead screw 1010 it controls, so that the two lead screws 1010 drive their respective lower ends to move up and down at the connection points with the lifting platform 730, thereby adjusting the reference plane of the lifting platform 730 to a basically horizontal level. The reference plane of the lifting platform 730 is the parallel plane of its upper and lower surfaces.

[0132] In this embodiment, adjusting the levelness of the reference surface of the lifting platform 730 to ensure that the middle support rod section of the lifting platform 730 is in a vertical state specifically includes: Adjust the tilt angle of each second guide wheel mounting arm or third guide wheel mounting arm so that the second guide wheel 910 in the second guide wheel assembly and the third guide wheel 1610 in the third guide wheel assembly are tightly attached to the surface of the guide round steel 920. Further adjust the tilt angle of each second guide wheel mounting arm or third guide wheel mounting arm, and simultaneously adjust the levelness of the reference surface of the lifting platform 730 until it is confirmed that the middle support rod section of the lifting platform 730 is in a vertical state.

[0133] In this embodiment, by rotating the adjusting screw 2650 in the mounting arm adjusting assembly 2530, the parallelogram-shaped support arm assembly undergoes synchronous and symmetrical deformation, thereby independently adjusting the tilt angle of each guide wheel mounting arm. First, ensure that the V-grooves of each guide wheel are tightly fitted to the surface of the guide round steel 920 to eliminate guide gaps. Then, by coordinating and fine-tuning the angles of the third guide wheel mounting arms of the second guide wheel mounting arms at the four corners, the overall posture of the lifting platform is corrected, making its reference plane tend to be horizontal, ensuring that the mast section fixed to it is in a vertical state. In this embodiment, the mechanical fine-tuning of the guide wheel assembly replaces traditional methods such as inserting shims under the platform, resulting in high adjustment accuracy and strong repeatability. It can offset the influence of other structures such as the tilt of the sleeve or the round steel, without compromising the overall rigidity of the structure.

[0134] In this embodiment, the positions of the two lead screws 1010 are acquired in real time, and the two drive motors 1020 are synchronously controlled using cross-coupling control, including: The real-time positions of the two lead screws 1020 are obtained by encoders respectively; The PID-based cross-coupling control algorithm calculates the drive signals for the two drive motors 1020 respectively. , : ; ; in, , , These are the proportional, integral, and derivative gain coefficients for ID control. This is the preset synchronous compensation gain coefficient; This serves as the target reference position for the rise or fall of the lead screw 1010. , For single-axis position error, , , These are the real-time positions of the two lead screws 1020 respectively; For synchronization error, ; Drive signals based on two drive motors 1020 , The system generates a PWM control signal to drive the two drive motors 1020 to run synchronously, so that the two lead screws 1010 keep rising and falling synchronously.

[0135] By employing a cross-coupling control method, the synchronization error of the two lead screws 1010 is introduced into their respective controllers. When one lead screw 1010 becomes ahead or behind due to load changes or disturbances, the synchronization error generates an additional compensation through gain, actively applying correction to the other side to quickly bring the positions of both sides into alignment. This embodiment uses this method, adding synchronous coordination control to the traditional single-axis PID control. This ensures the tracking accuracy of each axis to the target position while effectively suppressing dynamic position differences between the two axes. During the lifting of the gantry by the modular tower erection equipment in this embodiment, even if there is uneven tension in the wire ropes of the winches on both sides or a slight shift in the center of gravity of the gantry section, the motor control system can detect and automatically correct the deviation in real time, thereby maintaining the horizontal state of the lifting platform 730, preventing the gantry section from tilting, and ensuring the smoothness of the lifting movement and the safety of the system.

[0136] Example 6 like Figure 27-30 As shown, this embodiment provides a standard gantry section feeding fixture, used to transport newly added standard gantry sections horizontally from the channel inlet to the lifting channel during tower erection, and to assist in connecting the newly added standard gantry sections to the lifting platform 730. One end of the fixture is located in the lifting channel of the sleeve mechanism 120, and the other end extends from the channel inlet on the side of the sleeve mechanism 120 to the outside of the sleeve mechanism 120. The fixture includes a fixture body 2700, which includes a horizontally arranged linear guide rail 2710 and a platform assembly 272 that slides on the linear guide rail 2710. 0. The linear guide rail 2710 extends from the lifting channel of the sleeve mechanism 120 to the outside of the sleeve mechanism 120; the support platform assembly 2720 includes a push support platform 2810, a lifting support platform 2820 and a rotating support platform 2830. The push support platform 2810 is disposed above the linear guide rail 2710 and slides with the linear guide rail 2710. The lifting support platform 2820 is installed above the push support platform 2810 and can move up and down relative to the push support platform 2810. The rotating support platform 2830 is installed above the lifting support platform 2820 and can rotate relative to the lifting support platform 2820 in the horizontal plane.

[0137] The tooling body 2700 is equipped with multiple support legs, which allow it to be erected inside and outside the lifting channel of the sleeve mechanism 120. The push platform 2810 enters or exits the lifting channel along the linear guide rail 2710. The lifting platform 2820 raises the standard section of the boom to the required height for docking with the lifting platform 730. The circumferential orientation of the standard section of the boom is finely adjusted by rotating the platform 2830 to ensure the precise alignment of the bolt holes of the connecting flange.

[0138] The tooling body 2700 also includes a drive assembly, which includes a horizontally arranged transmission screw 2730 and a drive component 2740 for driving the transmission screw 2730 to rotate forward and backward. The drive component 2740 is located on the tooling body at one end away from the sleeve mechanism 120. The transmission screw 2730 is parallel to the linear guide rail 2710 and extends from inside the lifting channel of the sleeve mechanism 120 to outside the sleeve mechanism 120. The bottom of the push platform 2810 is provided with a transmission nut 2811 that is threadedly connected to the transmission screw 2730.

[0139] The drive unit 2740 can be an electric motor or a manual crank. By driving the rotation of the transmission screw 2730 through the drive unit 2740, the push platform 2810 is accurately fed into or out of the lifting channel. Compared with manual pulling, it can achieve more stable and precise feed control, which helps the standard section of the boom to enter the lifting channel smoothly.

[0140] The tooling body 2700 includes two horizontally arranged and parallel linear guide rails 2710, and a horizontal guide rod 2750 that is parallel to and of the same length as the conveying screw 2730; the bottom of the push platform 2810 is provided with a roller 2812, which slides on the linear guide rails 2710 and can roll within the linear guide rails 2710; the bottom of the push platform 2810 is provided with a guide sleeve 2813, which is sleeved on the horizontal guide rod 2750 and can slide along the horizontal guide rod 2750.

[0141] During the horizontal movement of the pusher platform 2810 on the linear guide rail 2710, the rolling engagement of the roller 2812 with the two horizontally set and parallel linear guide rails 2710, and the sliding engagement of the guide sleeve 2813 on the horizontal guide rod 2750, effectively prevent the platform assembly 2720 from swaying left and right during horizontal movement, and ensure the structural stability of the overall structure when bearing the lateral impact and eccentric load during the hoisting of the standard section of the gantry, without excessively increasing the moving resistance of the platform assembly 2720.

[0142] Multiple lifting guide rods 2821 are vertically fixed at the bottom of the lifting platform 2820. The push platform 2810 has guide through holes that correspond one-to-one with the lifting guide rods 2821 and slide together. The lower end of the lifting guide rod 2821 passes through the guide through hole and the end is provided with a lifting limit block 2822. The radial dimension of the lifting limit block 2822 is larger than the diameter of the guide through hole.

[0143] The lifting platform 2820 can be driven by an external hydraulic jack or screw jack, or it can be lifted manually. Accordingly, lifting handles are provided on both sides of the lifting platform 2820 for easy manual operation. The lifting guide rod 2821 and the guide through hole form a vertical moving pair. Through the cooperation of multiple lifting guide rods 2821 and the guide through hole, the lifting platform can be lifted smoothly in the vertical direction without relative rotation. The lifting limit block 2822 is used to prevent the lifting platform 2820 from disengaging from the pushing platform 2810, and plays a role in mechanical limiting and fall protection.

[0144] The support platform assembly 2720 includes a locking assembly, which includes a pair of lifting plates 2840 that are vertically fixed to the bottom of the lifting support platform 2820 and symmetrically distributed. The middle of the push support platform 2810 is provided with a lifting through hole for the lifting plates 2840 to pass through downwards. The bottom end of the lifting plates 2840 is provided with a positioning groove 2841. Two positioning members 2850 are provided on the tooling body 2700 near the end of the sleeve mechanism 120. The two positioning members 2850 are slidably installed on both sides of the tooling body 2700. The end of the positioning member 2850 near the center of the lifting through hole can be engaged in the positioning groove 2841. The positioning member 2850 includes two stations: a locking station that extends into the center of the lifting through hole and engages in the positioning groove 2841, and an unlocking station that is away from the center of the lifting through hole and withdraws from the positioning groove 2841.

[0145] Once the standard section of the mast is raised to the docking height, the positioning component 2850 is pushed into the locking position. At this time, the positioning component 2850 is engaged in the positioning groove 2841, thereby locking the height position of the lifting platform 2820. This prevents the lifting platform 2820 from settling or shifting due to load changes during the docking operation, providing stable support for the next docking step. To unlock, simply pull the positioning component 2850 outward to the unlocking position.

[0146] A slewing bearing is provided between the rotating platform 2830 and the lifting platform 2820. The slewing bearing is respectively embedded in the bottom surface of the rotating platform 2830 and the top surface of the lifting platform 2820. The rotating strip 2830 can rotate smoothly and stably relative to the lifting platform 2820.

[0147] The top surface of the rotating bearing 2830 is provided with four corner limit blocks 2831, and the four limit blocks 2831 form a limiting space for placing the lower end of the standard section of the gantry rod; the limit blocks 2831 are L-shaped and fit the lower corner of the standard section of the gantry rod.

[0148] The four L-shaped limit blocks 2831 form a four-corner limit, which can wrap around the lower end of the standard section of the gantry, thereby restricting the translation and rotation of the standard section of the gantry in the horizontal direction. At the same time, it can quickly and accurately limit the standard section of the gantry to the installation position at the lower end when it is placed on the rotating bearing. With the help of the limit blocks 2831 to fix the standard section of the gantry, when the rotating bearing 2830 is rotated, the standard section of the gantry rotates synchronously to complete the docking of the standard section of the gantry.

[0149] One end of the linear guide 2710 extends into the lifting channel of the sleeve mechanism 120, and the other end extends to the outside of the sleeve mechanism 120; the support assembly 2720 includes horizontally spaced and non-overlapping waiting stations and docking stations on the linear guide 2710. The waiting stations are located outside the sleeve mechanism 120 and are used for unobstructed hoisting of the standard section of the pole, while the docking stations are located within the lifting channel of the sleeve mechanism 120.

[0150] The overall length of the tooling body 2700 is greater than twice the width of the standard section of the boom and twice the thickness of the sleeve mechanism 120. The waiting station is set in an open area outside the sleeve. A crane or winch can directly lift the standard section vertically onto the support assembly 2720. Then, the support assembly 2720 carries the standard section of the boom and moves it along the linear guide rail 2710 to the docking station, so that the central axis of the standard section of the boom coincides with the center line of the lifting channel.

[0151] Example 7 Based on embodiments 1-6, this embodiment provides a modular tower erection equipment, which includes a sleeve mechanism 120, the bottom of which is mounted on a base mechanism 110. The sleeve mechanism 120 includes a lower sleeve 720 and an upper sleeve 710 mounted on the upper end of the lower sleeve 720. Both the upper sleeve 710 and the lower sleeve 720 are lattice steel frames with a square cross-section. A lifting channel is formed inside the sleeve mechanism 120 for the vertical movement of the mast section 00. A lifting mechanism 130 is installed on the sleeve mechanism 120. The lifting mechanism 130 is disposed in the lifting channel and is used to lift the mast section 00. The lifting mechanism 130 includes a lifting platform 730 and a mechanism for driving the lifting platform 730 to move up and down in the lifting channel. The drive mechanism includes two symmetrically arranged screw assemblies on the sleeve mechanism 120. Each screw assembly includes a screw that is vertically arranged axially and whose lower end is connected to the lifting platform 730, and a drive motor that drives the screw to move up and down and is fixed on the sleeve mechanism 120. The top of the upper sleeve 710 is provided with a first constraint member for constraining the vertical movement of the boom section 00, and a second constraint member for constraining the vertical movement of the boom section 00 is provided between the lower sleeve 720 and the lifting platform 730. The lifting platform 730 is constructed in the form of a rectangular frame structure and has an internal mounting position for fixing the bottom of the boom section 00. The lower end of the screw 1010 is connected to the lifting platform 730 through a flexible connection assembly 1030.

[0152] In this embodiment, the base mechanism 110, the sleeve mechanism 120, and the lifting mechanism 130 are modularly integrated. Through the prefabricated structural design, each module can be independently disassembled into a transportation unit suitable for mountain roads and manual handling. On-site assembly can be completed using bolts or pins without the need for large hoisting equipment. The base mechanism 110 achieves independent height and level adjustment on uneven ground through the foot assembly. The lifting channel formed inside the sleeve mechanism 120 constrains all lifting movements within a closed frame, without occupying additional lateral space, making it particularly suitable for restricted sites such as power transmission line corridors and narrow mountain terraces. The symmetrical layout of the double helix screw assembly evenly transmits the lifting force to the lifting platform 730. Combined with the omnidirectional swing freedom provided by the flexible connection assembly 1030, it can adaptively release lateral internal forces caused by manufacturing errors and off-center loading, achieving stable and safe heavy-load lifting within the limited space of the lifting channel.

[0153] In this embodiment, the base mechanism 110 includes a main base 210 for supporting the boom section 00 and the sleeve mechanism 120. The main base 210 includes four main base connecting beams 310 evenly distributed around the center of the main base 210. Each of the four main base connecting beams 310 includes a connecting end connected to the center of the main base 210 and an extension end extending away from the center of the main base 210. A connecting crossbeam 320 is fixed between each pair of adjacent main base connecting beams 310. The extension end is provided with a foot assembly for adjusting the height and level of the main base 210. A secondary base 220 for supporting the winch is installed on each of the two connecting crossbeams 320 that are arranged opposite to each other along the length direction of the main base 210.

[0154] The four main base connecting beams 310 adopt welded H-beams or I-beams, and the connecting ends are welded together to form a cross-shaped double L-shaped cross structure, so that the center of the main base 210 has the concentrated load-bearing capacity to bear the weight of the pole section. The connecting crossbeams 320 are welded to the web plates of the adjacent main base connecting beams 310, connecting the four beams into an integral load-bearing frame, which greatly improves the torsional stiffness and overturning resistance of the base. The auxiliary base 220 achieves preliminary vertical positioning through the interference fit between the upper and lower panels and the flange plates of the main base connecting beams 310, and is then fixed by evenly distributed fastening bolts to form a semi-rigid node that can transmit large loads and can be quickly disassembled and assembled. The winch installation position is set at the end of the upper panel away from the main base, so that the overturning moment generated by the lifting wire rope on the base is opposite to the direction of the pole's center of gravity offset, and the mutual cancellation significantly improves the stress state of the base. The symmetrical arrangement of the auxiliary bases ensures that the wire rope exit angles on both sides are consistent and that the movements do not interfere with each other.

[0155] In this embodiment, the foot assembly includes a support plate 510 for supporting the extended end and a height adjustment assembly for adjusting the height of the support plate 510. The height adjustment assembly includes an adjustment seat 610, an upwardly extending adjustment sleeve 620 at the center of the adjustment seat 610, an adjustment rod 630 internally threaded onto the adjustment sleeve 620, and the support plate 510 mounted on the upper end of the adjustment rod 630. A sliding rod extending downward and slidably connected within the adjustment rod 630 is provided at the lower end face of the support plate 510. 650, the slide rod 650 is equipped with an upper thrust bearing 660, a lower thrust bearing 670 and an annular pressure sensor 680 disposed between the upper thrust bearing 660 and the lower thrust bearing 670; the foot assembly also includes a leveling assembly for leveling the adjusting seat 610, the leveling assembly includes a ground base plate 550 and a plurality of leveling bolts 570 evenly disposed on the adjusting seat base plate 611, the bottom end of the leveling bolts 570 abutting against the ground base plate 550 through an arc surface mating structure.

[0156] The U-shaped support groove structure of the support plate 510 is applicable to base beams with different cross-sections such as I-beams and channel steel beams. The support is completed by placing the extended end into the groove. The upper and lower thrust bearings axially clamp the annular pressure sensor 680 in the middle, so that the sensor only bears pure axial load and is not affected by bending moment. The measurement accuracy is high. Construction personnel can judge whether there is eccentric load or uneven settlement of the base based on the data of the annular pressure sensor 680. When the pressure value of a certain anchor component is abnormally low, it can be determined that the support point is at risk of suspension or foundation settlement. Secondary leveling can be carried out in time to avoid structural instability caused by local overload. The rotating handle of the adjusting rod 630 cooperates with the anti-rotation handle, so that a single person can easily rotate the adjusting rod under load to overcome the huge axial force brought by the self-weight of the base and the frame.

[0157] In this embodiment, the support plate 510 is provided with clamping bolts 640 on both sides, and the extension end is provided with limiting plates 1710 on both sides. The limiting plates 1710 are provided with strip-shaped limiting holes 1810 arranged vertically. The clamping bolts 640 pass through the strip-shaped limiting holes 1810 and can be clamped against the side of the extension end. The adjusting seat base plate 611 is provided with multiple leveling through holes 1910. The leveling through holes 1910 are provided with arc-shaped movable blocks 1920 with outward convex arc surfaces. The arc-shaped movable blocks 1920 are threadedly connected to the leveling bolts 570. The outward convex arc surface of the arc-shaped movable blocks 1920 is rotatably engaged with the inner wall of the leveling through holes 1910.

[0158] The strip-shaped limiting hole 1810 on the limiting plate 1710 is arranged vertically. Its width is matched with the tightening bolt 640, while its length is greater than its width. This ensures that after the tightening bolt passes through the strip-shaped limiting hole, it can reliably prevent the extension end from moving horizontally, while also allowing a small vertical relative displacement between the foot assembly and the main base during height adjustment. This avoids assembly stress caused by excessive constraint during height adjustment. The arc-shaped movable block 1920 can swing in all directions within the arc-shaped receiving cavity 2010. When the leveling bolt 570 changes its axial angle as the base plate 611 of the adjusting seat tilts, the arc-shaped movable block 1920 automatically follows and adjusts its posture, always maintaining good thread engagement with the leveling bolt. This eliminates the problem of traditional fixed nuts causing difficulty in adjustment, bolt bending, or even thread damage due to thread jamming during leveling, making the leveling operation smooth and precise.

[0159] In this embodiment, the flexible connection assembly 1030 includes a connection hole 1110 disposed on the lifting platform 730, a T-shaped post 1120 inserted into the connection hole 1110 from bottom to top, and a connection joint 1130 connecting the lead screw 1010 and the T-shaped post 1120. The upper end of the connection joint 1130 is rotatably connected to the lower end of the lead screw 1010 through a first rotating pin 1140, and the lower end of the connection joint 1130 is rotatably connected to the upper end of the T-shaped post 1120 through a second rotating pin 1150. The axial direction of the first rotating pin 1140 is perpendicular to the axial direction of the second rotating pin 1150.

[0160] In this embodiment, a cross universal joint connection is formed between the lead screw 1010 and the lifting platform 730, providing rotational freedom in two orthogonal directions. When the lifting platform 730 experiences slight sway within the guide clearance range, the lead screw 1010 will not bear bending moment due to the platform tilting, but will only transmit axial tension, thus ensuring that the lead screw always works under pure axial force. The T-shaped column 1120 passes through the connecting hole 1110 from bottom to top, and its large end is stuck on the lower surface of the lifting platform 730. The load transmission path is directly from the lead screw through the connecting joint and the T-shaped column to the bottom of the lifting platform, which is simple in terms of force. Moreover, the T-shaped column can be quickly inserted and removed, which is convenient for on-site disassembly and maintenance.

[0161] In this embodiment, the drive mechanism further includes a lead screw assembly mounting base fixed on the sleeve mechanism 120. The lead screw assembly mounting base includes a lead screw assembly fixing plate 1220 and a lead screw assembly adjusting plate 1230. The lead screw assembly adjusting plate 1230 is mounted on the lead screw assembly fixing plate 1220 by a plurality of adjusting bolt assemblies 1240. The adjusting bolt assembly 1240 includes a fixing bolt 1510 whose lower end is threadedly connected to the lead screw assembly fixing plate 1220 and an adjusting bolt sleeved outside the fixing bolt 1510. The lower end of the main bolt 1520 and the adjusting bolt 1520 abuts against the upper surface of the lead screw assembly fixing plate 1220. The inside of the lead screw assembly adjusting plate 1230 is provided with a receiving cavity 2220 with an inner arc surface at the installation position of the adjusting bolt assembly 1240. A nut 2210 is provided in the receiving cavity 2220. The nut 2210 is sleeved on the adjusting bolt 1520 and is threadedly engaged with the adjusting bolt 1520. The outer surface of the nut 2210 has the same curvature as the inner surface of the receiving cavity 2220.

[0162] By rotating the adjusting bolt 1520, the distance between the lead screw assembly adjusting plate 1230 and the lead screw assembly fixing plate 1220 is changed, thereby achieving a fine adjustment of the horizontality of the lead screw assembly mounting seat and ensuring that the lead screw axis is parallel to the axis of the guide round steel 920. The arc surface of the outer surface of the nut 2210 and the inner surface of the receiving cavity 2220 are matched, so that even when the axis of the adjusting bolt 1520 is slightly tilted due to installation deviation, the nut can still swing at a small angle in the receiving cavity, keeping the thread axis coaxial with the adjusting bolt, avoiding additional bending moment and stress concentration, ensuring smooth adjustment and extending the service life of the thread pair. After the adjustment is completed, the fixing bolt 1510 is tightened to make the adjusting plate and the fixing plate a rigid whole, ensuring that it will not loosen during the lifting operation.

[0163] In this embodiment, the first constraint member includes four first guide wheels 810 respectively installed at the four corners of the upper end face of the upper sleeve 710, and the four first guide wheels 810 are slidably engaged with the four outer corner surfaces of the pole section 00; the second constraint member includes four second guide wheel assemblies disposed on the upper end face of the lifting platform 730 and four third guide wheel assemblies disposed on the lower end face of the lifting platform 730, the second guide wheel assemblies and the third guide wheel assemblies are arranged symmetrically in the upper and lower parts; the lower sleeve 720 is provided with vertically arranged guide round steel 920 at the four inner corner surfaces, and the second guide wheel 910 in the second guide wheel assembly and the third guide wheel 1610 in the third guide wheel assembly are slidably engaged with the outer surface of the guide round steel 920.

[0164] In this embodiment, a vertical constraint system with two-point support is formed by the first guide wheel on the upper end face of the upper frame 710 and the lifting platform 730, ensuring the stability of the mast section's posture during the lifting process. The second guide wheel 910 and the third guide wheel 1610, which are symmetrically arranged on the upper and lower sides of the lifting platform 730, form an enveloping guide for the lifting platform 730. By clamping the guide round steel 920 with the upper and lower double wheels, even if the lifting platform 730 is subjected to an eccentric moment, the upper and lower guide wheels can provide opposite constraint forces to form a couple, effectively preventing the platform from overturning. The guide round steel 920 provides a continuous and smooth guide track for the lifting platform 730 throughout its entire stroke, ensuring that the mast section maintains a vertical movement trajectory throughout the entire process from entering the lifting channel to reaching the installation height.

[0165] In this embodiment, the second guide wheel assembly includes two second guide wheel mounting arms. The lower ends of the two second guide wheel mounting arms are rotatably connected to the first connection points of the guide wheel mounting base 2510. A mounting arm adjustment assembly 2530 is provided between the two second guide wheel mounting arms. The upper end of the mounting arm adjustment assembly 2530 is rotatably connected to the two second guide wheel mounting arms, and the lower end is rotatably connected to the second connection points of the guide wheel mounting base 2510. The second connection points are not collinear with the two first connection points. The mounting arm adjustment assembly 2530 includes a parallelogram connecting rod structure formed by hinged first upper support arm 2631, second upper support arm 2632, first lower support arm 2633, and second lower support arm 2634, and an adjusting screw 2650 that passes through the connecting rod structure. Rotating the adjusting screw 2650 can cause the parallelogram connecting rod structure to undergo symmetrical deformation to change the length of the mounting arm adjustment assembly 2530, thereby adjusting the tilt angle of the second guide wheel mounting arm.

[0166] By rotating the adjusting screw 2650 to drive the parallelogram linkage structure to extend and retract symmetrically, the tilt angle of each second guide wheel mounting arm and the third guide wheel mounting arm relative to the horizontal plane can be adjusted independently, thereby changing the fit and contact position between each guide wheel and the guide round steel 920. When the tilt angles of the mounting arms at the four corners are adjusted in a coordinated manner, the levelness of the reference surface of the lifting platform 730 can be precisely corrected, eliminating the tilt of the lifting platform 730 caused by manufacturing errors and assembly deviations of the sleeve. The meshing of the upper support arm teeth and the lower support arm teeth ensures the synchronous movement of the left and right support arm assemblies. The adjustment process is smooth and reversible. After adjustment, the position is maintained by the self-locking thread of the adjusting screw, without the need for additional locking parts.

[0167] In this embodiment, the screw assembly further includes a screw assembly mounting base, which has a mounting cavity 1210 for the screw 1010 to pass through vertically. A worm gear located in the mounting cavity 1210 is connected to the motor shaft of the drive motor 1020, and a worm wheel located in the mounting cavity 1210 and meshing with the worm gear is threaded onto the screw 1010.

[0168] The worm gear drive has a self-locking characteristic, allowing the lifting platform 730 to be locked at any height by the transmission pair itself, eliminating the need for an additional brake or ratchet mechanism, simplifying the structure and improving safety. The double bearings coaxially arranged on the upper and lower sides of the worm gear form a simple support, constraining the radial oscillation of the lead screw in the transmission section and ensuring the lead screw's rotational accuracy. The drive motor 1020 is preferably a servo motor, working in conjunction with an encoder to achieve closed-loop position control, providing precise position feedback signals for the cross-coupling synchronous control algorithm.

[0169] This embodiment also provides a method for assembling a steel tower, which is accomplished using the aforementioned modular steel tower assembly equipment, including: Prepare the site, including leveling and compacting the ground at the center of the tower base for construction and erection; Install the base mechanism 110 and the foot assembly, place the extension end of the main base connecting beam 310 into the U-shaped support groove 511 of the foot assembly, adjust the height of the base mechanism 110 by rotating the adjusting rod 630, and adjust the levelness of the adjusting base plate 611 of the foot assembly by adjusting the leveling bolt 570. Use the ring pressure sensor 680 to monitor the load-bearing capacity of each foot assembly, so that the base mechanism 110 reaches a horizontal and uniformly stressed state. Install the auxiliary base 220, and fit the upper and lower panels of the auxiliary base 220 with the flange plates of the main base connecting beam 310 by interference fit and fix them with fastening bolts. Install the winch on the auxiliary base 220. Place the lifting platform 730 above the base mechanism 110 and install the lower sleeve 720 so that the guide round steel 920 of the lower sleeve 720 slides in cooperation with the second guide wheel 910 and the third guide wheel 1610 on the lifting platform 730. Two sets of screw assemblies are symmetrically installed on the upper end of the lower sleeve 720. The level of the screw assembly adjustment plate 1230 is adjusted by adjusting the bolt assembly 1240 so that the axis of the screw 1010 is in a vertical state. The lower end of the screw 1010 is connected to the lifting platform 730 through the flexible connection assembly 1030. Adjust the installation level of the two drive motors 1020 respectively, and start the drive motors 1020 to make the lower ends of the two lead screws 1010 move up and down respectively until the reference surface of the support 730 is raised to be level; install the upper sleeve 710 so that the first guide wheel 810 at the top of the upper sleeve 710 slides with the outer corner surface of the support rod section 00. Adjust the length of the mounting arm adjustment assembly 2530, change the tilt angle of the second guide wheel mounting arm and the third guide wheel mounting arm, so that the second guide wheel 910 and the third guide wheel 1610 are tightly attached to the surface of the guide round steel 920, and simultaneously adjust the levelness of the reference surface of the lifting platform 730, so that the middle support rod section 00 of the lifting platform 730 is in a vertical state. No-load and load operation trials were conducted to confirm that the operating status of the lifting mechanism 130 met the operating standards. The modular tower erection equipment is now in operation. During the lifting of the mast section 00, the position of the two lead screws 1010 is obtained in real time by encoders set at each drive motor 1020. Cross-coupling control is used to synchronously control the two drive motors 1020, so that the two lead screws 1010 keep rising and falling synchronously until the tower erection operation is completed.

[0170] In this embodiment, from the foundation treatment stage to the final operation stage, corresponding adjustment measures were taken throughout the entire process to ensure the structural stability of the overall device and the operational stability of the lifting movement. By excavating a bearing slope inclined towards the center of the base, laying a graded crushed stone cushion layer and compacting it in layers, the foundation components generate a self-centering component force towards the center when bearing vertical loads, preventing the foundation from slipping outwards. During the base installation stage, measures such as height adjustment, leveling, and load-bearing capacity testing and verification were taken to ensure that the base reaches a uniform load-bearing state. During the lifting mechanism debugging stage, the motor levelness was adjusted, the lower end of the lead screw was aligned, and the 730 reference plane of the lifting platform was fine-tuned. Then, the smoothness and synchronization accuracy were verified through trial runs of unloaded full-range round trip and loaded full-range lifting. Finally, during the formal lifting process, the cross-coupling control algorithm introduced the synchronization error of the lead screws on both sides into the controller in real time. When one side is ahead or behind, the other side is automatically compensated and corrected to keep the lifting platform horizontal and the boom section vertical.

[0171] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0172] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A standard section feed fixture for a boom, one end of which is located within the lifting channel of the sleeve mechanism (120), and the other end extending from the channel inlet on the side of the sleeve mechanism (120) to the outside of the sleeve mechanism (120), characterized in that, include: The tooling body (2700) includes a horizontally arranged linear guide rail (2710) and a support assembly (2720) that is slidably fitted to the linear guide rail (2710). The linear guide rail (2710) extends from the lifting channel of the sleeve mechanism (120) to the outside of the sleeve mechanism (120). The support assembly (2720) includes a push support (2810), a lifting support (2820), and a rotating support (2830). The push support (2810) is arranged above the linear guide rail (2710) and is slidably fitted to the linear guide rail (2710). The lifting support (2820) is installed above the push support (2810) and can move up and down relative to the push support (2810). The rotating support (2830) is installed above the lifting support (2820) and can rotate relative to the lifting support (2820) in the horizontal plane.

2. The feed fixture for the standard section of the mast as described in claim 1, characterized in that: The tooling body (2700) also includes a drive assembly, which includes a horizontally arranged transmission screw (2730) and a drive component (2740) for driving the transmission screw (2730) to rotate forward or backward. The drive component (2740) is located on the tooling body at one end away from the sleeve mechanism (120). The transmission screw (2730) is parallel to the linear guide rail (2710) and extends from inside the lifting channel of the sleeve mechanism (120) to outside the sleeve mechanism (120). The bottom of the push platform (2810) is provided with a transmission nut (2811) that is threadedly connected to the transmission screw (2730).

3. The standard section feed fixture for the boom as described in claim 2, characterized in that: The tooling body (2700) includes two horizontally arranged and parallel linear guide rails (2710) and a horizontal guide rod (2750) that is parallel to and of equal length to the conveying screw (2730); the bottom of the push platform (2810) is provided with a roller (2812), which slides on the linear guide rail (2710) and can roll within the linear guide rail (2710); the bottom of the push platform (2810) is provided with a guide sleeve (2813), which is sleeved on the horizontal guide rod (2750) and can slide along the horizontal guide rod (2750).

4. The standard section feed fixture for the mast as described in claim 1, characterized in that: The bottom of the lifting platform (2820) is vertically fixed with multiple lifting guide rods (2821). The push platform (2810) is provided with guide through holes that correspond one-to-one with the lifting guide rods (2821) and slide in cooperation. The lower end of the lifting guide rod (2821) passes through the guide through hole and the end is provided with a lifting limit block (2822). The radial dimension of the lifting limit block (2822) is larger than the diameter of the guide through hole.

5. The standard section feed fixture for the mast as described in claim 4, characterized in that: The platform assembly (2720) includes a locking assembly, which includes a pair of lifting plates (2840) that are vertically fixed to the bottom of the lifting platform (2820) and symmetrically distributed. The middle of the pushing platform (2810) is provided with a lifting through hole for the lifting plates (2840) to pass through downwards. The bottom end of the lifting plates (2840) is provided with a positioning groove (2841). Two positioning pieces (2850) are provided on one end of the tooling body (2700) near the sleeve mechanism (120). The two positioning pieces (2850) are slidably installed on both sides of the tooling body (2700). The end of the positioning piece (2850) near the center of the lifting through hole can be inserted into the positioning groove (2841). The positioning piece (2850) includes two stations, namely a locking station that extends into the center of the lifting through hole and is inserted into the positioning groove (2841), and an unlocking station that is away from the center of the lifting through hole and is pulled out of the positioning groove (2841).

6. The feed fixture for the standard section of the mast as described in claim 1, characterized in that: A slewing bearing is provided between the rotating platform (2830) and the lifting platform (2820), and the slewing bearing is respectively embedded in the bottom surface of the rotating platform (2830) and the top surface of the lifting platform (2820).

7. The standard section feed fixture for the mast as described in claim 6, characterized in that: The top surface of the rotating platform (2830) is provided with four corners of limiting blocks (2831), and the four limiting blocks (2831) form a limiting space for placing the lower end of the standard section of the gantry; the limiting blocks (2831) are L-shaped and fit the lower corner of the standard section of the gantry.

8. The feed fixture for the standard section of the mast as described in claim 7, characterized in that: One end of the linear guide (2710) extends into the lifting channel of the sleeve mechanism (120), and the other end extends to the outside of the sleeve mechanism (120); the support assembly (2720) includes a waiting station and a docking station that are spaced apart in the horizontal direction and do not overlap on the linear guide (2710). The waiting station is located outside the sleeve mechanism (120) and is used for unobstructed hoisting of the standard section of the pole. The docking station is located in the lifting channel of the sleeve mechanism (120).

9. A modular tower erection equipment, comprising the standard section feeding fixture as described in any one of claims 1 to 8.

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