Integrated hoisting and jacking self-climbing crane

Abstract

The present application provides a lifting and jacking integrated self-climbing crane and its usage method, which is applicable to the construction of a single-column cable tower. The lifting and jacking integrated self-climbing crane includes a main truss, a sliding support frame, a trolley system and a winch lifting system. The main truss is erected on a single-column tower that has met the construction height requirements, and the sliding support frame is located below the main truss for anchoring with the tower column. The trolley system includes a lifting trolley frame body, a continuous climbing mechanism and a lifting frame body. The lifting trolley frame body is arranged on the main truss and can move along the length direction of the main truss. The continuous climbing mechanism is arranged on the lifting trolley frame body and includes a lifting column and a climbing oil cylinder. By alternately telescoping different groups of the climbing oil cylinders to push the lifting column, the lifting trolley frame body can move along the lifting column. The lifting frame body is arranged on the lifting trolley frame body, and the winch lifting system passes through the lifting frame body to hoist the tower column segments.

Description

Technical Field

[0001] The present application relates to the field of bridge construction, and in particular to a self-climbing crane with integrated lifting and jacking. Background Art

[0002] A cable-stayed bridge, also known as a cable-tensioned bridge, features a main girder directly attached to the towers by numerous cables. The structure is composed of compression-bearing towers, tension-bearing cables, and a bending-bearing beam. It can be considered a multi-span elastically supported continuous beam with cables replacing buttresses. This reduces bending moments within the beam, lowering building height, reducing structural weight, and conserving materials.

[0003] Cable-stayed bridges primarily consist of towers, main beams, and stay cables. Tower cranes are currently commonly used to hoist bridge components such as tower segments and crossbeam segments. Due to the heavy weight of steel tower segments, large-capacity tower cranes are often required, resulting in high costs. Furthermore, during construction, the crane's attachment to the wall exerts a significant horizontal thrust on the tower, easily exceeding the structural load limits of the tower and significantly impacting the bridge's load-bearing capacity. Summary of the Invention

[0004] The main purpose of this application is to provide a self-climbing crane with an integrated lifting and jacking function suitable for the construction of a single-tower cable tower. It does not require a tower crane attached to the tower column to achieve crane climbing and has good self-climbing ability.

[0005] Another object of the present application is to provide a method for using the above-mentioned lifting and jacking integrated self-climbing crane.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] As a first aspect, the present application relates to a self-climbing crane with integrated lifting and jacking, suitable for the construction of a single-column cable tower, comprising a main truss, a sliding support frame, a crown block system, and a winch hoisting system;

[0008] The main truss is erected on a single tower column that meets the construction height requirements;

[0009] The sliding support frame is located below the main truss and is provided on both sides of the tower column. The sliding support frame is used to anchor the tower column.

[0010] The overhead crane system includes a hoisting overhead crane frame body, a continuous climbing mechanism, a hoisting frame body and a sling. The hoisting overhead crane frame body is arranged on the main truss and can move along the length direction of the main truss. The continuous climbing mechanism is arranged on the hoisting overhead crane frame body and includes a lifting column and a climbing oil cylinder. The lifting column can move relative to the hoisting overhead crane frame body and along the vertical direction. The climbing oil cylinder is arranged on the hoisting overhead crane frame body and at least two groups are provided. By alternately extending and retracting different groups of the climbing oil cylinders, the lifting column is pushed to make the hoisting overhead crane frame body move along the lifting column.

[0011] The hoisting frame body is arranged on the hoisting overhead crane frame body. The winch lifting system hoists the tower column section through the sling and the hoisting frame body.

[0012] Further setting: The lifting column is provided with a plurality of jacks arranged along its length direction, and the extending end of the piston rod of the climbing oil cylinder is provided with a plug pin for plugging and matching with the jacks.

[0013] Further setting: A plurality of lifting columns are provided, and the hoisting overhead crane frame body is provided with a plurality of through holes corresponding to the plurality of lifting columns. The lifting columns penetrate through the hoisting overhead crane frame body from the through holes, and the climbing oil cylinders are arranged along the periphery of the through holes.

[0014] Further setting: One hoisting frame body is arranged at each of the two ends of the hoisting overhead crane frame body in the length direction. A transverse movement oil cylinder for pushing the hoisting frame body to move along the length direction of the hoisting overhead crane frame body is arranged between the hoisting frame body and the hoisting overhead crane frame body.

[0015] Further setting: The hoisting frame body is provided with rollers. The sling includes a hanging frame, a hanging claw and a movable pulley group. Two groups of movable pulley groups are provided and are respectively located at both ends of the hanging frame. The winch lifting system is connected to the movable pulley groups at both ends of the sling through the rollers of the two hoisting frame bodies correspondingly. The hanging claw is used for anchoring with the top of the bridge structure to be hoisted.

[0016] Further setting: An anchoring seat is arranged on the hanging frame. The anchoring seat is provided with a plug pin for plugging and matching with the bottom jack of the lifting column. The hanging claw is anchored with the bridge structure through bolt connection so that the lifting column is anchored with the bridge structure.

[0017] Further setting: The hanging frame includes an upper hanging beam and a lower hanging frame. The movable pulley groups are arranged at both ends of the upper hanging beam. The bottom side of the lower hanging frame is provided with a hanging claw. A hydraulic oil cylinder for pushing the hanging claw to slide on the lower hanging frame is arranged on the lower hanging frame.

[0018] Further settings: The lower suspension bracket is an H-shaped bracket, the upper suspension beam is arranged above the middle connecting beam of the lower suspension bracket, and a slewing structure is provided between the upper suspension beam and the lower suspension bracket. The slewing structure includes an inner ring and an outer ring arranged coaxially, and the inner ring and the outer ring can rotate relative to each other. The outer ring is bolted to the upper suspension beam, the inner ring is bolted to the lower suspension bracket, and the upper suspension beam is provided with a motor for driving the inner ring to rotate.

[0019] As a second aspect, the present application relates to a use method of the lifting and jacking integrated self-climbing crane as described above, which is applicable to the construction of a single-tower column cable tower, and includes the following steps:

[0020] Set the lifting and jacking integrated self-climbing crane at the top of the tower column that meets the construction height requirements;

[0021] Use the lifting and jacking integrated self-climbing crane to lift the tower column segment above the currently installed tower column segment for splicing;

[0022] After the hoisted tower column segment is installed, use the lifting and jacking trolley system to make the lifting and jacking integrated self-climbing crane climb to the top of the installed tower column segment;

[0023] Repeat the above steps until the tower column construction is completed.

[0024] Further settings: During the process of using the lifting and jacking integrated self-climbing crane to lift the tower column segment, the sliding support frame of the lifting and jacking integrated self-climbing crane is anchored to the tower column;

[0025] When using the lifting and jacking trolley system to make the lifting and jacking integrated self-climbing crane climb, the sliding support frame of the lifting and jacking integrated self-climbing crane is disconnected from the tower column.

[0026] Compared with the prior art, the solution of the present application has the following advantages:

[0027] 1. The lifting and jacking integrated self-climbing crane of the present application is mainly applicable to the construction of a single-tower column. The present application realizes the self-climbing of the lifting and jacking integrated trolley system through the insertion and cooperation between the lifting column and the climbing oil cylinder in the continuous climbing mechanism, and drives the climbing of the main truss connected to the lifting and jacking integrated trolley system. There is no need to use a tower crane attached to the tower column to lift the crane, and the crane uses the tower column as the support and bearing structure, which enhances the structural stability and bearing capacity of the crane and ensures the stability of the hoisting process.

[0028] 2. In the integrated lifting and jacking self-climbing crane of the present application, the main truss is supported by a sliding support frame that can be movably connected to the tower column. The sliding support main frame body of the sliding support frame approaches the tower column under the drive of the sliding walking step, and is anchored to the tower column by using the tower column fixed hinge support, so that the overall load of the crane of the present application is transmitted to the tower column through the sliding support frame and then by the tower wall fixed hinge support, thus effectively supporting the crane of the present application.

[0029] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and be easily understood from the following description of the embodiments in conjunction with the drawings, wherein:

[0031] Figure 1 is a schematic structural diagram of an embodiment of the integrated lifting and jacking self-climbing crane of the present application;

[0032] Figure 2 is Figure 1 an enlarged schematic diagram of the structure of part A of ;

[0033] Figure 3 is a side view of an embodiment of the integrated lifting and jacking self-climbing crane of the present application;

[0034] Figure 4 is a schematic structural diagram of the continuous climbing mechanism in the integrated lifting and jacking self-climbing crane of the present application;

[0035] Figure 5 is a schematic diagram of the connection structure between the continuous climbing mechanism and the double-anchor sling in the integrated lifting and jacking self-climbing crane of the present application;

[0036] Figure 6 is a schematic structural diagram of the sling in the integrated lifting and jacking self-climbing crane of the present application;

[0037] Figure 7 is a top view of the structure of the sling in the integrated lifting and jacking self-climbing crane of the present application;

[0038] Figure 8 is a schematic structural diagram of the construction operation platform in the integrated lifting and jacking self-climbing crane of the present application;

[0039] Figure 9 is a process flow chart of the construction method for the double-tower column cable tower using the integrated lifting and jacking self-climbing crane of the present application.

[0040] In the figure, 1 is the main truss; 2 is the sliding support frame, 21 is the main frame body of the sliding support, 22 is the sliding walking device, 221 is the sliding seat, 222 is the sliding oil cylinder, 23 is the fixed hinge support on the tower wall, 231 is the fixed seat, 232 is the connecting seat; 3 is the integrated lifting and jacking overhead crane system, 31 is the overhead crane frame body, 32 is the continuous climbing mechanism, 321 is the lifting column, 322 is the climbing oil cylinder, 33 is the lifting frame body, 331 is the roller, 332 is the transverse movement oil cylinder, 34 is the lifting tackle, 3411 is the upper hanging beam, 3412 is the lower hanging beam, 342 is the lifting claw, 343 is the movable pulley block, 344 is the hydraulic oil cylinder, 345 is the slewing structure, 3451 is the inner ring, 3452 is the outer ring, 3453 is the motor, 346 is the anchoring seat, 35 is the driving mechanism, 36 is the lifting and horizontal bracing mechanism, 361 is the horizontal bracing, 362 is the double-headed lifting oil cylinder; 4 is the winch hoisting system, 41 is the winch, 42 is the steel wire rope, 43 is the rope winding drum; 5 is the construction operation platform, 51 is the overhead crane operation and maintenance platform, 52 is the upper maintenance platform, 53 is the lower maintenance platform, 54 is the transverse sliding welding platform, 55 is the longitudinal welding platform, 56 is the repair platform, 57 is the up and down passageway. Detailed implementation manners

[0041] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0042] Please refer to Figures 1 to 8 , for the construction of existing single-tower column or double-tower column cable towers, the present application proposes an integrated lifting and jacking self-climbing crane, which can realize the self-climbing of the crane, does not require the setting of large-scale lifting equipment, and can be applicable to the construction of cable towers in different geographical environments.

[0043] The lifting and jacking integrated self-climbing crane (hereinafter referred to as "crane") includes a main truss 1, a sliding support frame 2, a lifting and jacking integrated overhead crane system 3 and a hoist lifting system 4. The main truss 1 is erected on the top of the tower column that has met the construction requirements. The sliding support frame 2 is located below the main truss 1 and is used to anchor to the tower column to support the main truss 1. The lifting and jacking integrated overhead crane system 3 is arranged above the main truss 1 and is used to realize the lifting of bridge structures and the self-climbing of the crane. The lifting and jacking integrated overhead crane system 3 includes a lifting overhead crane frame body 31, a continuous climbing mechanism 32, a lifting frame body 33 and a spreader 34. The lifting overhead crane frame body 31 can move along the length direction of the main truss 1 to transport the lifted bridge structure to the top of the tower column and position and lower it. The lifting frame body 33 is arranged on the lifting overhead crane frame body 31. The hoist lifting system 4 is connected to the spreader 34 through the lifting frame body 33, so as to use the spreader 34 to lift the structure.

[0044] The lifting and jacking integrated self-climbing crane of this application is mainly used for the construction of the cable tower, so the lifted bridge structure is a tower column segment or a tower column cross beam.

[0045] Specifically, the main truss 1 adopts a two-piece truss structure, which includes two parallel trusses and an intermediate horizontal connection connecting the two trusses. At least one end side of the main truss 1 along its length direction is provided with an opening, and the opening of the main truss 1 is inclined downward towards its center line, so as to facilitate the lifting and jacking integrated overhead crane system 3 to lift the bridge structure from the opening of the main truss 1 into the main truss 1 and transport it to the corresponding lowering station. Tracks (not marked) are arranged at the top and bottom of the main truss 1 respectively to guide the movement of the lifting and jacking integrated overhead crane system 3 above the main truss 1 and the sliding support frame 2 arranged at the bottom of the main truss 1.

[0046] The sliding support frame 2 provided at the bottom of the main truss 1 is the main load-bearing structure connecting the crane of this application and the tower column. The sliding support frame 2 includes a sliding support main frame 21, a sliding step 22 and a tower wall fixed hinged support 23. The length direction of the sliding support main frame 21 is perpendicular to the length direction of the main truss 1. The sliding step 22 is provided between the main truss 1 and the sliding support main frame 21, so as to push the sliding support main frame 21 to move along the length direction of the main truss 1 through the sliding step 22. The sliding step 22 includes two sliding seats 221 and a sliding oil cylinder 222 arranged between the two sliding seats 221. The two sliding seats 221 are both coordinated with the track located at the bottom of the main truss 1. The two sliding seats 221 are both provided with plug-in pins for plugging and cooperating with the main truss 1. Among the two sliding seats 221, the sliding seat 221 close to the sliding support main frame 21 is connected to the sliding support main frame 21. The cooperation between the two sliding seats 221 and the sliding oil cylinder 222 can realize the movement of the sliding support frame 2 along the length direction of the main truss 1.

[0047] The tower wall fixed hinged support 23 is hinged on the side of the sliding support main frame 21 close to the tower column. The tower wall fixed hinged support 23 includes a fixed seat 231 and a connecting seat 232 that are hinged to each other. The fixed seat 231 is installed on the sliding support main frame 21, and the connecting seat 232 can be connected and fixed with the pre-embedded connecting parts on the side wall of the tower column through high-strength bolts.

[0048] Preferably, in this embodiment, a set of sliding support frames 2 is provided on each side of the tower column. The two sets of sliding support frames 2 support the main truss 1. Each set of sliding support frames 2 has two sets of sliding steps 22 corresponding to the two-piece truss structure of the main truss 1, so that the two sets of sliding steps 22 push the sliding support frames 2 toward or away from the tower column along the length direction of the main truss 1. At the same time, the sliding support main frame body 21 is connected to the tower column by providing four tower wall fixed hinged supports 23 to ensure the connection strength between the sliding support main frame body 21 and the tower column.

[0049] The sliding support main frame 21 of the two groups of sliding support frames 2 on both sides of the above-mentioned tower column is driven by the sliding steps 22 to approach the tower column, and the tower wall fixed hinged support 23 is anchored to the tower column, so that the entire machine load of the crane of this application is transmitted to the tower column through the sliding support frame 2 and then through the tower wall fixed hinged support 23, thereby effectively supporting the crane of this application.

[0050] The integrated hoisting and jacking overhead crane system 3 can realize the self-climbing of the crane of the present application and the hoisting of bridge structures, that is, the main truss 1 can be climbed to the top of the installed tower column section under the drive of the integrated hoisting and jacking overhead crane system 3 to install the next tower column section. The sliding support frame 2 rises and falls with the rise and fall of the main truss 1, and when the crane of the present application hoists the bridge structure, the tower wall fixed hinge supports 23 of the sliding support frame 2 are all anchored to the side wall of the tower column; when the crane of the present application climbs, the constraints between all the tower wall fixed hinge supports 23 and the tower column are released, and the sliding support frame 21 is driven away from the tower column through the sliding walking 22 to facilitate the lifting operation of the main truss 1.

[0051] The integrated hoisting and jacking overhead crane system 3 can move along the length direction of the main truss 1. The integrated hoisting and jacking overhead crane system 3 includes a hoisting overhead crane frame body 31, a continuous climbing mechanism 32, a hoisting frame body 33 and a lifting appliance 34. A driving mechanism 35 is provided between the hoisting overhead crane frame body 31 and the main truss 1. The driving mechanism 35 includes a driving seat and a driving oil cylinder. The driving seat is matched with the track at the top of the main truss 1, and a plug pin for plugging and matching with the track is provided on the driving seat. The driving oil cylinder is arranged between the driving seat and the hoisting overhead crane frame body 31, and the hoisting overhead crane frame body 31 is pushed to move along the length direction of the main truss 1 by the intermittent expansion and contraction of the driving oil cylinder.

[0052] Furthermore, the hoisting overhead crane frame body 31 straddles the two trusses of the main truss 1, and two groups of driving mechanisms 35 are arranged between the hoisting overhead crane frame body 31 and the main truss 1 corresponding to the two trusses, improving the transverse movement stability of the hoisting overhead crane frame body 31.

[0053] The continuous climbing mechanism 32 is arranged in the hoisting overhead crane frame body 31. It includes a lifting column 321 and a climbing oil cylinder 322. A perforation (not shown) is provided on the hoisting overhead crane frame body 31. The lifting column 321 penetrates the hoisting overhead crane frame body 31 from the perforation. A plurality of jacks (not marked) are arranged on the lifting column 321 along its length direction. The climbing oil cylinder 322 is arranged on the hoisting overhead crane frame body 31, and a plug pin for plugging and matching with the jack of the lifting column 321 is provided at the extending end of its piston rod. Moreover, at least two groups of the climbing oil cylinder 322 are arranged corresponding to each lifting column 321, and the lifting column 321 can be pushed to move along its length direction (vertical direction in this embodiment) by the alternating expansion and contraction of different groups of the climbing oil cylinder 322.

[0054] Preferably, four lifting columns 321 are provided in this embodiment. Four through holes are correspondingly formed on the hoisting gantry frame body 31, and the connection line of the four through holes is rectangular. Moreover, the through holes are square holes, and the lifting columns 321 are square columns. Therefore, four groups of climbing oil cylinders 322 are correspondingly arranged on the four faces of the square column in this embodiment, and the four groups of climbing oil cylinders 322 are arranged along the periphery of the through holes. In addition, the four groups of climbing oil cylinders 322 are grouped in pairs, and the two climbing oil cylinders 322 in the same group are synchronized in telescoping and are oppositely arranged on the opposite faces of the lifting column 321. It should be further noted that each group of climbing oil cylinders 322 includes at least one oil cylinder for pushing the lifting column 321, and the more the number of oil cylinders is arranged, the higher the supporting ability for the lifting column 321 is. Therefore, in this embodiment, each group of climbing oil cylinders 322 is provided with three oil cylinders arranged side by side for synchronous telescoping, and an installation seat (not marked) is provided at the end of the extending end of the piston rod of the three oil cylinders, and the plug pin inserted and matched with the lifting column 321 is fixed on the installation seat.

[0055] Further, a lifting parallel connection mechanism 36 is further provided between two adjacent ones of the four lifting columns 321. The lifting parallel connection mechanism 36 includes a parallel connection 361 and a double-headed lifting oil cylinder 362. Double-headed lifting oil cylinders 362 are provided at both ends of the parallel connection 361. The double-headed lifting oil cylinder 362 has two telescopic piston rods, and plug pins that can be inserted and matched with the lifting column 321 are provided at the extending ends of the two piston rods. By connecting two adjacent lifting columns 321 through the lifting parallel connection 361 structure, the synchronous lifting of the lifting columns 321 can be ensured.

[0056] One hoisting frame body 33 is provided at each of the two ends of the hoisting gantry frame body 31, and the hoisting frame body 33 can move relative to the hoisting gantry frame body 31 along its length direction. Specifically, a transverse movement oil cylinder 332 that telescopically moves along the length direction is provided on the hoisting gantry frame body 31. The extending end of the piston rod of the transverse movement oil cylinder 332 is connected to the hoisting frame body 33. At the same time, guide rails (not shown) extending along the length direction are further provided at the two ends of the hoisting gantry frame body 31, and the hoisting frame body 33 is provided with guide grooves (not shown) that cooperate with the guide rails, so as to adjust the position of the hoisting frame body 33 on the hoisting gantry frame body 31 through the transverse movement oil cylinder 332.

[0057] Rollers 331 are provided on the hoisting frame body 33. The winch lifting system 4 of the present application mainly uses a winch 41 and a steel wire rope 42 for hoisting operations. The steel wire rope 42 of the winch lifting system 4 passes through the rollers 331 on the hoisting frame body 33 and is then connected to the lifting tool 34. That is, the hoisting frame body 33 plays a guiding role for the steel wire rope 42. Then, by adjusting the position of the hoisting frame body 33 through the transverse movement oil cylinder 332, the position where the steel wire rope 42 is lowered can be adjusted to adapt to the connection with different specifications of the lifting tool 34. The lifting tool 34 includes a lifting frame and lifting claws 342. The lifting claws 342 are provided below the lifting frame for connecting with the bridge structure to be hoisted. A movable pulley block 343 is provided on the lifting frame for connecting with the steel wire rope 42 passing through the above-mentioned hoisting frame body 33. Two groups of movable pulley blocks 343 are provided at both ends of the lifting tool 34, corresponding to the rollers 331 of the two hoisting frame bodies 33 on the hoisting and lifting frame body 31 respectively. Therefore, the winch lifting system 4 is provided with two groups of steel wire ropes 42 to pass through the rollers 331 of the two hoisting frame bodies 33 and be connected to the movable pulley blocks 343 at both ends of the lifting frame. That is, the steel wire rope 42 lifts the lifting frame by connecting the movable pulley blocks 343 at both ends of the lifting frame, with high lifting stability and improved construction safety for hoisting.

[0058] The lifting frame includes an upper lifting beam 3411 and a lower lifting frame 3412. The movable pulley blocks 343 are provided at both ends of the upper lifting beam 3411, and the lifting claws 342 are provided on the bottom side of the lower lifting frame 3412. The lower lifting frame 3412 is an H-shaped frame, and one lifting tool 34 is provided at each of the four corner ends of the lower lifting frame 3412. Each lifting claw 342 is a four-claw lifting claw. In addition, a hydraulic cylinder 344 is correspondingly provided on the lower lifting frame 3412 for each lifting claw 342. By pushing the lifting claw 342 to slide on the lower lifting frame 3412 through the hydraulic cylinder 344, the position of the lifting claw 342 can be changed according to the lifting point position of the bridge structure to be hoisted. That is, the lifting tool 34 is an adjustable lifting tool 34 to adapt to the hoisting operations of bridge structures with different specifications.

[0059] The hanging beam 3411 is arranged above the middle connecting beam of the lower hanging bracket 3412, and a slewing structure 345 is provided between the hanging beam 3411 and the lower hanging bracket 3412. The slewing structure 345 includes an inner ring 3451 and an outer ring 3452 arranged coaxially, and the inner ring 3451 and the outer ring 3452 can rotate relative to each other. The outer ring 3452 is bolted to the hanging beam 3411, and the inner ring 3451 is bolted to the lower hanging bracket 3412. The hanging beam 3411 is provided with a motor 3453, and the rotation of the inner ring 3451 is driven by the motor 3453. The inner ring 3451 is provided with internal teeth throughout the whole circle, and the output shaft of the motor 3453 is provided with a gear meshing with the internal teeth. When the motor 3453 rotates, the relative rotation of the hanging beam 3411 and the lower hanging bracket 3412 is driven through gear meshing, and the motor 3453 has a self-locking function. When the motor 3453 stops rotating, the relative positions of the hanging beam 3411 and the lower hanging bracket 3412 are fixed. In the hanging bracket of the present application, the slewing structure 345 is arranged between the hanging beam 3411 and the lower sling 34, which can be applicable to the situation where the tower column section gradually becomes wider along the longitudinal bridge direction. During hoisting, the short side is located in the longitudinal bridge direction and the long side is located in the transverse bridge direction. After being lifted to the installation position, it is rotated by 90° for installation. Otherwise, the active transverse bracing and temporary cross beams between the cable towers need to be installed outside the transverse bridge direction of the tower column to avoid interfering with the installation of the tower column and the cross beam.

[0060] The hoisting system 4 of the winch includes a winch 41, a steel wire rope 42 and a rope winding drum 43. Due to the limited space layout position of the hoisting system of the winch, in this embodiment, the winch 41 is arranged on the lifting frame body 31 of the crane and moves therewith, and the rope winding drum 43 is arranged at the bottom of the tower column. Preferably, the present application preferably adopts a friction type winch 41. When the friction type winch 41 is working, the steel wire rope 42 only passes through and will not wind around the winch 41, so that the winch 41 and the rope winding drum 43 can be separated. One end of the steel wire rope 42 is wound at the rope winding drum 43, and the other end passes through the winch 41 and then passes through the roller 331 on the lifting frame body 33 and is connected to the movable pulley block 343 on the sling 34. The sling 34 is pulled to be lifted through the friction between the winch 41 and the steel wire rope 42.

[0061] In this embodiment, the lifting capacity of each hoisting system 4 of the winch is 300 tons, the diameter of the steel wire rope 42 is Ø36mm, and the model is preferably Ø36-35WxK7-1870. The breaking tensile force of the steel wire rope 42 is 99.4 tons, and the lifting speed under the rated load is 6m / min. The total length of the steel wire rope 42 is 3000m×4, the self-weight of a single set of friction type winch 41 is 30 tons, and the self-weight of a single set of rope winding machine is 10 tons.

[0062] In addition, after the crane of the present application finishes hoisting the current tower column segment, the continuous climbing mechanism 32 can be used to climb to the top of the current tower column segment. At this time, the sling 34 is kept fixed to the top of the tower column segment, and the lifting cylinder 322 is used to lower the lifting column 321 so that its bottom is anchored to the top of the sling 34. The sling 34 is a double-anchor sling 34, and four sets of anchor seats 346 are arranged at positions corresponding to the four lifting columns 321, and a plug pin is arranged on each of the anchor seats 346. When the bottom of the lifting column 321 abuts against the sling 34, the lifting column 321 can be anchored to the sling 34 beam by inserting the plug pin into the jack at the bottom of the lifting column 321. Moreover, at least two anchor seats 346 are arranged for each set of anchor seats 346 corresponding to each lifting column 321, and the connection strength between the lifting column 321 and the sling 34 is ensured by anchoring at least two points of the lifting column 321. In this embodiment, four anchor seats 346 are arranged for each set of anchor seats 346 to anchor the four sides of each lifting column 321 one by one, so that the anchoring between the lifting column 321 and the sling 34 is highly stable.

[0063] Next, the telescopic operation of the lifting cylinder �22 on the lifting crane frame 31 is used to make the lifting crane frame 31 climb along the lifting column 321, and it can be stopped after climbing in place. The main truss 1 can climb along with the climbing of the lifting crane frame 31. Before the main truss 1 climbs along with the lifting crane frame 31, the anchoring between the sliding support frame 2 and the tower column should be released first, and the sliding support frame 2 slides out a certain distance to be completely separated from the tower column, so that the main truss 1 is relatively free with respect to the tower column. At this time, the load of the crane of the present application is transmitted to the top of the tower column through the lifting column 321 and the sling 34 for bearing. Or, before the lifting crane frame 31 climbs, the restriction between the lifting crane frame 31 and the main truss 1 is released first. After the lifting crane frame 31 climbs in place, the restriction of the steel wire rope 42 and the sling 34 is released, and a temporary sling 34 is arranged at the end of the steel wire rope 42 for hoisting. The lifting frames 33 at both ends of the lifting crane frame 31 are adjusted to adjust the position of the temporary sling 34 to connect with the main truss 1. At this time, the connection between the sliding support frame 2 and the tower column is released, and the main truss 1 and the sliding support frame 2 are lifted to a position below the lifting crane frame 31 by using the temporary sling 34, and then the lifting crane frame 31 is connected to the main truss 1, and the sliding support frame 2 is anchored to the already installed current top tower column segment, so as to complete the self-climbing of the crane of the present application.

[0064] The self-climbing of the crane in this application mainly relies on the cooperation of the climbing cylinders 322 and the plug pins. A multi-point synchronous control system is adopted to ensure the consistency and synchronism of the actions of all lifting cylinders. In terms of the synchronous control system, a mature load-sensitive electro-hydraulic proportional multi-way valve is used in the hydraulic system design, which can achieve point-to-point independent control of all lifting cylinders. During the lifting process, the electronic control system can obtain the position of the piston rod of the cylinder in real time according to the displacement sensors set on the cylinders, and adjust the oil supply of each proportional valve accordingly in real time according to the different positions of the cylinders. By adopting the PID algorithm (i.e., a control algorithm that combines the three links of proportional, integral, and derivative), the synchronous control of all lifting cylinders is realized throughout the process.

[0065] In summary, the integrated lifting and self-climbing crane of this application combines lifting and self-climbing, and does not require additional large lifting equipment, solving the problems of high cost and slow progress in the existing method of using tower cranes to hoist structures. After the construction of a single section of the structure is completed, the crane of this application is lifted to the hoisting position of the next section through the continuous lifting structure, and the cycle continues. The process operation is simple, saving construction time and improving construction efficiency.

[0066] Moreover, the integrated lifting and self-climbing crane of this application is not only applicable to the construction of the cable tower with a single tower column structure, but also can meet the construction of the cable tower with a double tower column.

[0067] Specifically, when constructing the cable tower with a single tower column structure, the main truss 1 is erected at the top tower column section of the tower column that has met the construction height requirements, and the hoisting operation of the tower column section can be completed by setting a set of integrated lifting and self-climbing overhead crane system 3 on the main truss 1.

[0068] Therefore, the usage method of the integrated lifting and self-climbing crane of this application includes the following steps:

[0069] S001. Set the integrated lifting and self-climbing crane at the top of the tower column that meets the construction height requirements. Among them, the main truss 1 of the integrated lifting and self-climbing crane is erected along the transverse bridge direction at the top of the single tower column, and two groups of sliding support frames 2 are arranged along the longitudinal bridge direction and on both sides of the tower column. A set of integrated lifting and self-climbing overhead crane system 3 and a winch lifting system 4 are set on the main truss 1.

[0070] S002. Use the integrated lifting and self-climbing overhead crane system 3 and the winch lifting system 4 to lift the steel tower section from one end of the length direction of the main truss 1 to above the installed tower column section for installation.

[0071] One end of the main truss 1 in its length direction is provided with an inclined opening to facilitate the hoisting and jacking integrated overhead crane system 3 and the winch hoisting system 4 to hoist the steel tower segment into the main truss 1 for transportation. The position of the hoisting and jacking integrated overhead crane system 3 on the main truss 1 is controllable, so as to ensure the accurate alignment of the hoisted steel tower segment with the already installed tower column and ensure the installation accuracy of the tower column.

[0072] During the hoisting of the steel tower segment by the hoisting and jacking integrated overhead crane system 3 and the winch hoisting system 4, the sliding support frame 2 under the main truss 1 is anchored to the tower column, so as to ensure that the main truss 1 has sufficient supporting capacity to realize the hoisting operation of the steel tower segment.

[0073] S003. After the installed steel tower segment is installed, use the hoisting and jacking integrated overhead crane system 3 to move the hoisting and jacking integrated self-climbing crane to the top of the currently installed steel tower segment.

[0074] It is known that the hoisting and jacking integrated overhead crane system includes a hoisting overhead crane frame body 31, a continuous climbing mechanism 32, a hoisting frame body 33 and a sling 34. The continuous climbing mechanism 32 includes a lifting column 321 and a climbing oil cylinder 322. When the crane in this application climbs, the climbing oil cylinder 322 is used to move the lifting column 321 to abut against the sling 34 anchored to the top of the tower column below it. The bottom of the lifting column 321 and the sling 34 are anchored and connected through the plug-in pin of its anchoring seat 346. After ensuring the anchoring of the lifting column 321, the sling 34 and the top of the tower column, the climbing oil cylinder 322 drives the hoisting overhead crane frame body 31 to climb vertically to the top of the lifting column 321. The main truss 1 can climb with the climbing of the hoisting overhead crane frame body 31, and during the climbing process, the sliding support frame 2 at the bottom of the main truss 1 is separated from the tower column; or, the hoisting overhead crane frame body 31 and the main truss 1 can be separated first. After the hoisting overhead crane frame body 31 climbs in place, the hoisting frame bodies 33 at both ends of the hoisting overhead crane frame body 31 cooperate with the temporary sling 34 to hoist the main truss 1 below the hoisting overhead crane frame body 31 and then connect it. It should be noted that when hoisting the main truss 1, the sliding support frame 2 at the bottom of the main truss 1 is separated from the tower column. After the main truss 1 moves to the top of the currently installed steel tower segment, the sliding support frame 2 is anchored to the top of the current tower column, so as to complete the self-climbing of the hoisting and jacking integrated self-climbing crane.

[0075] Repeat the above steps S002 and S003, that is, the tower column is extended by the cyclic operation of hoisting the steel tower segment and the climbing operation of the hoisting and jacking integrated overhead crane system 3 until the tower column construction is completed.

[0076] When constructing the cable tower with a double-tower column structure, in addition to completing the heightening construction of a single tower column, it is also necessary to construct the cross beam between the two tower columns. When the cable tower with a double-tower column structure is constructed using a lifting and jacking integrated self-climbing crane in this application, the main truss 1 of the lifting and jacking integrated self-climbing crane needs to be erected on two adjacent tower columns that have met the construction height requirements along the transverse bridge direction. At the same time, two sets of sliding support frames 2 are respectively provided corresponding to the two tower columns, and each set of the sliding support frames 2 is provided with one set on each side of the corresponding tower column to ensure that both ends of the main truss 1 can be effectively supported.

[0077] In addition, when constructing the cable tower with a double-tower column structure, since the cable tower structure is more complex than that of a single-tower column cable tower, a construction operation platform 5 can be set on the main truss 1 to facilitate the construction of workers. The construction operation platform 5 includes a trolley operation and maintenance platform 51, an upper maintenance platform 52, a lower maintenance platform 53, a transverse sliding welding platform 54, a longitudinal welding platform 55, and a repair platform 56. The upper maintenance platform 52 is arranged on the top side of the main truss 1. The trolley operation and maintenance platform 51 is arranged on the lifting trolley frame body 31. And there is an up and down passage 57 between the trolley operation platform and the upper maintenance platform 52. The lower maintenance platform 53 is arranged on the lower side of the main truss 1. There is also an up and down passage 57 between the upper maintenance platform 52 and the lower maintenance platform 53. This up and down passage 57 is arranged along the diagonal brace of the main truss 1 to ensure the structural strength and stability of the up and down passage 57. The transverse sliding welding platform 54 is arranged along the transverse bridge direction, and the longitudinal welding platform 55 is arranged along the longitudinal bridge direction. The transverse sliding welding platform 54 and the longitudinal sliding welding platform are located at the top of the tower column. After the tower column segment to be hoisted is hoisted to the top of the already installed tower column segment, the welding operation between the two tower column segments is carried out. The repair platform 56 is correspondingly arranged at the position of the sliding support frame 2 and can be used for repairing the structure of the sliding support frame 2. And there is an up and down passage 57 between the repair platform 56 and the longitudinal welding platform 55. In this application, up and down passages 57 are arranged to connect between platforms at different height positions, and the edge protection all adopts a 1.5m high protective guardrail, so that workers can reach each construction operation platform 5 through the up and down passages 57 and can complete operations at different positions.

[0078] Therefore, when the crane in this application constructs the cable tower with a double-tower column structure, by adding a construction operation platform 5 to the main truss 1 and the combined design of the construction operation platform 5 and the main truss 1, the construction operation platform 5 can be jacked up together with the main truss 1 driven by the continuous climbing mechanism 32 without additionally setting a conventional circumferential operation platform.

[0079] In addition, for the cable tower with a double-tower column structure, two sets of integrated lifting and jacking overhead crane systems 3 are provided on the main truss 1 of the present application, which can perform synchronous construction of the two tower columns, thereby improving the construction efficiency. Moreover, the cable tower with a double-tower column structure further includes a cross beam, and the two sets of integrated lifting and jacking overhead crane systems 3 can be used to lift and install the cross beam.

[0080] Please refer to Figure 9 , and the construction method of the double-tower column cable tower includes the following steps:

[0081] First, install an integrated lifting and jacking self-climbing crane between two adjacent tower columns along the transverse bridge direction that meet the construction height requirements.

[0082] The integrated lifting and jacking self-climbing crane includes a main truss 1, a sliding support frame 2, an integrated lifting and jacking overhead crane system 3, a winch lifting system 4, and a construction operation platform 5. Among them, the main truss 1 is erected between two adjacent tower columns that have reached the construction height along the transverse bridge direction. The sliding support frame 2 is located below the main truss 1 and two groups are provided corresponding to the two tower columns respectively. The sliding support frame 2 is anchored to the top tower column segment to support the main truss 1 and its upper structure.

[0083] Two sets of the integrated lifting and jacking overhead crane systems 3 are provided on the main truss 1, and the integrated lifting and jacking overhead crane system 3 can move along the length direction of the main truss 1. The integrated lifting and jacking overhead crane system 3 includes a lifting overhead crane frame body 31, a continuous climbing mechanism 32, a lifting frame body 33, and a lifting tool 34. The lifting overhead crane frame body 31 is arranged on the main truss 1, and a driving mechanism 35 for pushing the lifting overhead crane frame body 31 to move along the length direction of the main truss 1 is provided between the two. The continuous climbing mechanism 32 is arranged on the lifting overhead crane frame body 31 to lift the lifting overhead crane frame body 31 in the vertical direction. The lifting frame body 33 moves along the length direction of the lifting overhead crane frame body 31. The winch lifting system 4 is connected to the lifting tool 34 through the lifting frame body 33 to lift the lifting tool 34 to lift the steel tower segment.

[0084] Use the integrated lifting and jacking self-climbing crane to hoist the steel tower segment to increase the height of the tower column.

[0085] Specifically, use the integrated lifting and jacking overhead crane system 3 and the winch lifting system 4 to hoist the steel tower segment to the top of the installed tower column segment for heightening. After the installation of the current top tower column segment is completed, then use the continuous climbing mechanism 32 of the integrated lifting and jacking overhead crane system 3 to move from the currently connected steel tower segment to the top of the installed and completed steel tower segment, and then hoist the next steel tower segment.

[0086] The self-climbing steps of the crane on the double-tower column cable tower are the same as those of the crane installed on the single-tower column cable tower, that is, the spreader 34 for lifting the steel tower segment is anchored at the top of the currently installed steel tower segment. The lifting column 321 of the continuous climbing mechanism 32 is driven by the climbing oil cylinder 322. The bottom of the lifting column 321 abuts against the spreader 34 anchored at the top of the installed steel tower segment, and the lifting column 321 and the spreader 34 are locked through the anchor seat 346 and the plug-in pin arranged at the top of the spreader 34. After the hoisting trolley frame 31 climbs to the target height of the lifting column 321 under the drive of the climbing oil cylinder 322, the fixing of the sliding support frame 2 and the tower column is released, and the main truss 1 is hoisted to the lower part of the hoisting trolley frame 31 by using the winch lifting system 4, and then the sliding support frame 2 is anchored to the currently installed tower column segment at the top through the tower wall fixed hinge support 23.

[0087] It should be noted that the self-climbing of the crane on the double-tower column cable tower needs to be carried out after the steel tower segments on the two tower columns are symmetrically installed and welded, and the self-climbing systems on the two tower columns also need to operate synchronously to ensure the straight upward rise of the main truss 1. At the same time, the integrated lifting and self-climbing crane for the construction of the double-tower column cable tower also includes a construction operation platform 5. The construction operation platform 5 is attached to the main truss 1, and its self-climbing system drives the construction operation platform 5 to climb while lifting the main truss 1.

[0088] Moreover, during the process of raising the tower column, the integrated lifting and self-climbing trolley system 3 and the winch lifting system 4 are used to hoist the temporary cross beam from bottom to top to different height positions of the tower column to connect the two tower columns.

[0089] After both tower columns are constructed to the target height, the upper cross beam and the lower cross beam are hoisted to the specified height positions in sequence from top to bottom and connected to the two tower columns.

[0090] Specifically, after the tower column is constructed to the preset tower top height, a splicing support is set at the bottom of the tower. The height position of the splicing support is the same as the installation station height of the lower cross beam. The integrated lifting and self-climbing crane is used to hoist the cross beam segment to the splicing support, and the integral upper cross beam is assembled. Then, the integral upper cross beam is hoisted to the upper cross beam installation station by the integrated lifting and self-climbing crane and installed and fixed to complete the installation construction of the upper cross beam.

[0091] Then, the integrated lifting and self-climbing crane is used to hoist its cross beam segment in three sections. First, the cross beam segments at both ends of the lower cross beam are hoisted and installed, and finally the middle cross beam segment is hoisted for the closure of the lower cross beam, and then the installation construction of the lower cross beam is completed.

[0092] Finally, the temporary steel cross beam and the integrated lifting and self-climbing crane are removed in sequence to complete the construction of the double-tower column steel cable tower.

[0093] After the construction of the tower columns and cross beams of the double-tower-column cable tower is completed, the assembly brackets used for assembling the cross beams, the temporary cross beams used to connect the two tower columns, and the hoisting and jacking integrated self-climbing crane are successively removed from bottom to top.

[0094] When removing the hoisting and jacking integrated self-climbing crane, the hoisting and jacking integrated overhead crane system 3 is fabricated at the top of the tower column, the winch hoisting system 4 hoists the main truss 1, and the connection between the sliding support frame 2 at the bottom of the main truss 1 and the tower column is released. Then, the main truss 1 is integrally lowered to the ground by using the winch hoisting system 4, and subsequently, the main truss 1 is disassembled and removed by a crawler crane.

[0095] Then, the hoisting and jacking integrated overhead crane system 3 located at the top of the tower column is removed by a tower crane to complete the removal of the hoisting and jacking integrated self-climbing crane of this application.

[0096] The above are only partial embodiments of this application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of this application.

Claims

1. A lifting and jacking integrated self-climbing crane, applicable to the construction of a single-tower column cable tower, characterized in that It includes a main truss, a sliding support frame, a crane system and a hoist lifting system; The main truss is erected on a single-tower column that has met the construction height requirements; The sliding support frame is located below the main truss, and one set is provided on each side of the column. The sliding support frame is used for anchoring with the column; The crane system includes a crane frame body, a continuous climbing mechanism, a lifting frame body and a lifting tool. The crane frame body is arranged on the main truss and can move along the length direction of the main truss. The continuous climbing mechanism is arranged on the crane frame body and includes a lifting column and a climbing oil cylinder. The lifting column can move relative to the crane frame body and along the vertical direction. The climbing oil cylinder is arranged on the crane frame body and at least two groups are provided. By alternately extending and retracting different groups of the climbing oil cylinders, the lifting column is pushed to make the crane frame body move along the lifting column; The lifting frame body is arranged on the crane frame body. The hoist lifting system hoists the column section through the lifting tool and passes through the lifting frame body. One lifting frame body is provided at each end of the crane frame body in the length direction. Rollers are provided on the lifting frame body. The lifting tool includes a lifting frame, a lifting claw and a movable pulley group. Two groups of the movable pulley groups are provided and are respectively located at both ends of the lifting frame. The hoist lifting system is connected to the movable pulley groups at both ends of the lifting tool through the rollers of the two lifting frame bodies. The lifting claw is used for anchoring with the top of the lifted bridge structure. An anchoring seat is provided on the lifting frame. A plug pin for plugging and matching with the bottom jack hole of the lifting column is provided on the anchoring seat. The lifting claw is anchored to the bridge structure by bolting to anchor the lifting column to the column section; 2. The integrated lifting and jacking self-climbing crane according to claim 1, wherein, The lifting column is provided with a plurality of jacks arranged along its length direction, and the extending end of the piston rod of the climbing oil cylinder is provided with a plug pin for plugging and matching with the jack; 3. The lifting and jacking integrated self-climbing crane according to claim 1, characterized in that, A plurality of the lifting columns are provided, and the crane frame body is provided with a plurality of through holes corresponding to the plurality of lifting columns. The lifting columns penetrate the crane frame body from the through holes, and the climbing oil cylinders are arranged along the periphery of the through holes; 4. The integrated lifting and jacking self-climbing crane according to claim 1, characterized in that, A transverse movement oil cylinder for pushing the lifting frame body to move along the length direction of the crane frame body is provided between the lifting frame body and the crane frame body; 5. The integrated lifting and jacking self-climbing crane according to claim 4, characterized in that, The lifting frame includes an upper lifting beam and a lower lifting frame. The movable pulley groups are arranged at both ends of the upper lifting beam. The bottom side of the lower lifting frame is provided with a lifting claw, and a hydraulic oil cylinder for pushing the lifting claw to slide on the lower lifting frame is provided on the lower lifting frame; 6. The integrated lifting and jacking self-climbing crane according to claim 5, wherein, The lower lifting frame is an H-shaped frame. The upper lifting beam is arranged above the middle connecting beam of the lower lifting frame, and a slewing structure is provided between the upper lifting beam and the lower lifting frame. The slewing structure includes a coaxial inner ring and outer ring, and the inner ring and the outer ring can rotate relative to each other. The outer ring is bolted to the upper lifting beam, and the inner ring is bolted to the lower lifting frame. The upper lifting beam is provided with a motor for driving the inner ring to rotate; 7. A method for using a lifting and jacking integrated self-climbing crane as described in any one of claims 1 to 6, which is applicable to the construction of a single-tower column cable tower, characterized in that, It includes the following steps: Set a lifting and jacking integrated self-climbing crane at the top of the column that meets the construction height requirements; Use the integrated lifting and jacking self-climbing crane to lift the tower column segment above the currently installed tower column segment for splicing and heightening; After the hoisted tower column segment is installed, use the lifting and jacking overhead crane system to make the integrated lifting and jacking self-climbing crane climb to the top of the installed tower column segment; Repeat the above steps until the construction of the tower column is completed.

8. The method for using the integrated lifting and jacking self-climbing crane according to claim 7, characterized in that, During the process of using the integrated lifting and jacking self-climbing crane to lift the tower column segment, the sliding support frame of the integrated lifting and jacking self-climbing crane is anchored to the tower column; When using the lifting and jacking overhead crane system to make the integrated lifting and jacking self-climbing crane climb, the sliding support frame of the integrated lifting and jacking self-climbing crane is disconnected from the tower column.

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