CN116281659A

CN116281659A - Lifting and jacking integrated self-climbing crane

Info

Publication number: CN116281659A
Application number: CN202211098043.9A
Authority: CN
Inventors: 卢冠楠; 肖向荣; 吴健; 宋超; 张皎; 盛朝辉; 周罡
Original assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-06-23

Abstract

The application provides a lifting and jacking integrated self-climbing crane and a use method thereof, which are suitable for construction of a single-tower column cable tower, wherein the lifting and jacking integrated self-climbing crane comprises a main truss, a sliding support frame, a crown block system and a winch lifting system, wherein the main truss is erected on a single-tower column meeting the requirement of construction height, and the sliding support frame is positioned below the main truss and is used for anchoring with the tower column; the crane system comprises a crane frame body, a continuous climbing mechanism and a crane frame body, wherein 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 comprises lifting columns and climbing cylinders, the lifting columns are pushed by the climbing cylinders in different groups in an alternating telescopic mode, so that the crane frame body moves along the lifting columns, the crane frame body is arranged on the crane frame body, and the crane lifting system is used for lifting tower column sections through the crane frame body.

Description

Lifting and jacking integrated self-climbing crane

Technical Field

The application relates to the field of bridge construction, in particular to a lifting and jacking integrated self-climbing crane.

Background

The cable-stayed bridge is also called as a stayed bridge, which is a bridge in which a main girder is directly pulled on a bridge tower by a plurality of stay ropes, and is a structural system formed by combining a bearing tower, a tension rope and a bearing beam body. It can be regarded as a multi-span elastic support continuous beam with guy cables instead of piers. The bending moment in the beam body can be reduced, the building height is reduced, the structural weight is reduced, and the materials are saved.

The cable-stayed bridge mainly comprises a cable tower, a main beam and a stay cable, and the conventional tower crane is used for hoisting bridge construction members such as a steel tower section and a steel beam section of a tower column. Because the steel tower section weight is great, the tower crane with large tonnage is often required, the manufacturing cost is high, the horizontal thrust of the tower crane wall attached to the tower column during construction is large, the stress limit of the cable tower structure is easily exceeded, and the stress of the bridge is very unfavorable.

Disclosure of Invention

The main purpose of this application is to provide a jack-up integral type self-climbing crane suitable for single tower column cable tower construction, and it need not to use the tower crane of depending on the tower column to realize the hoist and climbs, has good self-climbing ability.

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

In order to achieve the above object, the present application provides the following technical solutions:

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

the main truss is erected on a single tower column which meets the requirement of the construction height;

the sliding support frames are positioned below the main truss, a set of sliding support frames are respectively arranged on two sides of the tower column, and the sliding support frames are used for anchoring with the tower column;

the crane system comprises a crane frame body, a continuous climbing mechanism, a lifting frame body and a lifting appliance, wherein 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 comprises a lifting stand column and climbing cylinders, the lifting stand column can move relative to the crane frame body along the vertical direction, the climbing cylinders are arranged on the crane frame body and are at least two groups, and the lifting stand columns are pushed by alternately stretching and contracting the climbing cylinders of different groups so as to enable the crane frame body to move along the lifting stand column;

The hoisting frame body is arranged on the hoisting crane frame body, and the hoisting machine hoisting system is used for hoisting the tower column section through the hoisting frame body by the hoisting tool.

Further set up: the lifting upright post is provided with a plurality of jacks arranged along the length direction of the lifting upright post, and the extending end of a piston rod of the climbing oil cylinder is provided with a plug pin which is used for being in plug fit with the jacks.

Further set up: the lifting stand is provided with a plurality of lifting stand frames, the lifting stand frames are provided with a plurality of perforations corresponding to the lifting stand frames, the lifting stand frames penetrate through the lifting stand frames from the perforations, and the climbing oil cylinders are arranged along the peripheries of the perforations.

Further set up: the lifting frame body is respectively provided with one at two ends of the lifting frame body in the length direction, and a transverse moving oil cylinder for pushing the lifting frame body to move along the length direction of the lifting frame body is arranged between the lifting frame body and the lifting frame body.

Further set up: the lifting device comprises a lifting frame body, a lifting claw and a movable pulley block, wherein the lifting frame body is provided with rollers, the lifting frame comprises a lifting frame, the lifting claw and the movable pulley block, the movable pulley blocks are arranged in two groups and are respectively located at two ends of the lifting frame body, a winch lifting system is connected with the movable pulley blocks at two ends of the lifting frame body correspondingly through the two rollers of the lifting frame body, and the lifting claw is used for anchoring with the top of a lifted bridge structure.

Further set up: the lifting frame is provided with an anchoring seat, the anchoring seat is provided with a plug pin which is used for being in plug-in fit with a jack at the bottom of the lifting upright post, and the lifting claw is anchored with the bridge structure through bolting so as to anchor the lifting upright post and the bridge structure.

Further set up: the lifting frame comprises an upper lifting beam and a lower lifting frame, the movable pulley blocks are arranged at two ends of the upper lifting beam, lifting claws are arranged at the bottom side of the lower lifting frame, and a hydraulic cylinder pushing the lifting claws to slide on the lower lifting frame is arranged on the lower lifting frame.

Further set up: the lower hanging frame is an H-shaped frame, the upper hanging beam is arranged above the middle connecting beam of the lower hanging frame, a rotary structure is arranged between the upper hanging beam and the lower hanging frame and comprises an inner ring and an outer ring which are coaxially arranged, the inner ring and the outer ring can rotate relatively, the outer ring is in bolting with the upper hanging beam, the inner ring is in bolting with the lower hanging frame, and a motor for driving the inner ring to rotate is arranged on the upper hanging beam.

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

A lifting and jacking integrated self-climbing crane is arranged at the top of a tower column meeting the requirement of the construction height;

lifting a tower column section to the upper part of the currently installed tower column section by using a lifting and jacking integrated self-climbing crane for height connection;

after the installation of the hoisted tower column section is finished, the hoisting and jacking integrated self-climbing crane is hoisted to the top of the installed tower column section by using a hoisting and jacking crane system;

and (5) circulating the steps until the construction of the tower column is completed.

Further set up: in the process of lifting a tower column section by using a lifting and jacking integrated self-climbing crane, a sliding support frame of the lifting and jacking integrated self-climbing crane is anchored with a tower column;

when the lifting jack system is used for enabling the lifting jack integrated self-climbing crane to climb, the sliding support frame of the lifting jack integrated self-climbing crane is decoupled from the tower column.

Compared with the prior art, the scheme of this application has following advantage:

1. the utility model provides a jack-up integral type is from climbing hoist is mainly applicable to the construction of single tower post, and this application realizes jack-up integral type crown block system's from climbing through the cooperation of pegging graft between the lift stand in the continuous climbing mechanism and the climbing hydro-cylinder to drive the climbing of the main truss who is connected with jack-up integral type crown block system, need not to use the tower crane of attaching the tower post to promote the hoist, and the hoist uses the tower post as supporting bearing structure, has strengthened the structural stability and the bearing capacity of hoist, ensures the stability of hoist and mount process.

2. In the jack-up integral type self-climbing crane of this application, support the main truss through the slip support frame that can with tower column swing joint, the slip support main frame body of slip support is close to the tower column under the drive of slip walking, utilizes tower column fixed hinge support and tower column anchor for the complete machine load of the crane of this application is passed through the slip support frame and is transmitted to the tower column by tower wall fixed hinge support again, thereby plays effective support to the hoist of this application.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of one embodiment of a lift-jack integrated self-climbing crane of the present application;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;

FIG. 3 is a side view of one embodiment of a lift-jack integrated self-climbing crane of the present application;

FIG. 4 is a schematic structural view of a continuous climbing mechanism in the lifting and jacking integrated self-climbing crane of the present application;

FIG. 5 is a schematic diagram of a connection structure between a continuous climbing mechanism and a double-anchor type lifting appliance in the lifting-jacking integrated self-climbing crane;

FIG. 6 is a schematic structural view of a spreader in the lifting jack-up integrated self-climbing crane of the present application;

FIG. 7 is a structural top view of a spreader in the hoist-lifting integrated self-climbing crane of the present application;

FIG. 8 is a schematic structural view of a construction operation platform in the lifting and jacking integrated self-climbing crane;

fig. 9 is a process flow diagram of a method for double-tower column cable tower construction of the lifting and jacking integrated self-climbing crane.

In the figure, 1, a main truss; 2. a sliding support frame; 21. a sliding support main frame body; 22. a sliding walking track; 221. a sliding seat; 222. a sliding oil cylinder; 23. the tower wall is fixedly hinged with the support; 231. a fixing seat; 232. a connecting seat; 3. lifting and jacking integrated crown block system; 31. a crane frame body; 32. a continuous climbing mechanism; 321. lifting the upright post; 322. climbing an oil cylinder; 33. a lifting frame body; 331. a roller; 332. a traversing oil cylinder; 34. a lifting appliance; 3411. a hanging beam is arranged; 3412. a lower hanging bracket; 342. a hanging claw; 343. a movable pulley block; 344. a hydraulic cylinder; 345. a rotary structure; 3451. an inner ring; 3452. an outer ring; 3453. a motor; 346. an anchor seat; 35. a driving mechanism; 36. a lifting parallel mechanism; 361. parallel connection; 362. double-end lifting oil cylinder; 4. a hoist hoisting system; 41. a hoist; 42. a wire rope; 43. a rope winding drum; 5. a construction operation platform; 51. the crown block operates the maintenance platform; 52. a maintenance platform is arranged; 53. a lower overhaul platform; 54. a transverse sliding welding platform; 55. a longitudinal welding platform; 56. a repair platform; 57. and an upper and a lower channels.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to 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 only for the purpose of illustrating the present application and are not to be construed as limiting the present application.

Referring to fig. 1 to 8, for the construction of the existing single-tower column or double-tower column cable tower, the application provides a lifting and jacking integrated self-climbing crane which can realize self-climbing of the crane, does not need to be provided with large-scale lifting equipment and can be suitable for cable tower construction in different geographic environments.

The lifting and jacking integrated self-climbing crane (hereinafter referred to as a crane) comprises a main truss 1, a sliding support frame 2, a lifting and jacking integrated crown block system 3 and a winch system 4, wherein the main truss 1 is erected at the top of a tower column meeting construction requirements, and the sliding support frame 2 is positioned below the main truss 1 and is used for being anchored with the tower column to support the main truss 1. The lifting and jacking integrated crown block system 3 is arranged above the main truss 1 and is used for lifting and jacking bridge structures and self-climbing of cranes. The lifting and jacking integrated crown block system 3 comprises a lifting crown block frame body 31, a continuous climbing mechanism 32, a lifting frame body 33 and a lifting appliance 34, wherein the lifting crown block frame body 31 can move along the length direction of the main truss 1 so as to transport and position a lifted bridge structure to the top of a tower column, the lifting frame body 33 is arranged on the lifting crown block frame body 31, and the lifting machine system 4 is connected with the lifting appliance 34 through the lifting frame body 33, so that the lifting appliance 34 is used for lifting the structure.

The lifting and jacking integrated self-climbing crane is mainly used for construction of a cable tower, and therefore a hoisted bridge structure is a tower column section or a tower column cross beam.

Specifically, the main truss 1 adopts a two-piece truss structure, and comprises two trusses arranged in parallel and a middle parallel connection for connecting the two trusses, an opening is formed in at least one end side of the main truss 1 along the length direction of the main truss, and the opening of the main truss 1 is obliquely downwards arranged towards the center line of the main truss, so that the lifting and jacking integrated crown block system 3 can hoist bridge structures from the opening of the main truss 1 to the inside of the main truss 1 and transport the bridge structures to corresponding lowering stations. The top and the bottom of the main truss 1 are provided with rails (not labeled) for guiding the lifting and jacking integrated crown block system 3 above the main truss 1 and the sliding support frame 2 arranged at the bottom of the main truss 1 respectively.

Locates main truss 1 bottom the main bearing structure of this application hoist and tower is connected to the slip support frame 2, the slip support frame 2 is including the slip support body 21, slip walking 22 and tower wall fixed hinge support 23, the length direction of slip support body 21 is perpendicular to the length direction of main truss 1, the slip walking 22 is located between main truss 1 and the slip support body 21, in order to pass through slip walking 22 top slip support body 21 is followed the length direction of main truss 1 removes. The sliding walking track 22 comprises two sliding seats 221 and sliding oil cylinders 222 arranged between the two sliding seats 221, the two sliding seats 221 are matched with the rails positioned at the bottom of the main truss 1, the two sliding seats 221 are provided with plug pins for being in plug-in fit with the main truss 1, in the two sliding seats 221, the sliding seat 221 close to the sliding support main frame 21 is connected with the sliding support main frame 21, and the sliding support frame 21 can move along the length direction of the main truss 1 through the matching of the two sliding seats 221 and the sliding oil cylinders 222.

The tower wall fixed hinged support 23 is hinged to one side, close to a tower column, of the sliding support main frame body 21, the tower wall fixed hinged support 23 comprises a fixed seat 231 and a connecting seat 232 which are hinged to each other, the fixed seat 231 is mounted on the sliding support main frame body 21, and the connecting seat 232 can be connected and fixed with a connecting piece pre-buried in the side wall of the tower column through a high-strength bolt.

Preferably, in this embodiment, the two sets of sliding support frames 2 are respectively disposed on two sides of the tower column, the main truss 1 is supported by two sets of sliding support frames 2, and each set of sliding steps 22 of the sliding support frames 2 is disposed in two sets corresponding to the two-sheet truss structure of the main truss 1, so that the sliding support frames 2 are pushed by the two sets of sliding steps 22 to approach or separate from the tower column along the length direction of the main truss 1. Meanwhile, the sliding support main frame body 21 is connected with the tower column through the four tower wall fixing hinged supports 23, so that the connection strength between the sliding support main frame body 21 and the tower column is ensured.

The main support body 21 of the sliding support frames 2 of the two groups of sliding support frames on two sides of the tower column is close to the tower column under the driving of the sliding walking 22, and the fixed hinged support 23 of the tower wall and the tower column are anchored, so that the whole load of the crane is transmitted to the tower column through the sliding support frames 2 and then through the fixed hinged support 23 of the tower wall, and the crane is effectively supported.

The lifting and jacking integrated crown block system 3 can realize self-climbing of the crane and hoisting of bridge structures, namely, the main truss 1 can climb to the top of an installed tower column section under the driving of the lifting and jacking integrated crown block system 3 so as to install the next tower column section. The sliding support frame 2 is lifted along with the lifting of the main truss 1, and in the case of lifting a bridge structure by a crane, the tower wall fixed hinged supports 23 of the sliding support frame 2 are anchored with the side wall of a tower column; in the case of climbing of the crane, all the tower wall fixed hinged supports 23 and the tower columns are released from constraint, and the sliding support frames 21 are driven to be far away from the tower columns through the sliding walking 22, so that the lifting operation of the main truss 1 is facilitated.

The lifting and jacking integrated crown block system 3 can move along the length direction of the main truss 1, the lifting and jacking integrated crown block system 3 comprises a lifting crown block frame body 31, a continuous climbing mechanism 32, a lifting frame body 33 and a lifting appliance 34, a driving mechanism 35 is arranged between the lifting crown block frame body 31 and the main truss 1, the driving mechanism 35 comprises a driving seat and a driving oil cylinder, the driving seat is matched with a track on the top of the main truss 1, a plug pin matched with the track in a plugging manner is arranged on the driving seat, and the driving oil cylinder is arranged between the driving seat and the lifting crown block frame body 31 and intermittently stretches out and draws back through the driving oil cylinder so as to push the lifting crown block frame body 31 to move along the length direction of the main truss 1.

Further, the crane frame 31 spans across the two trusses of the main truss 1, and two sets of driving mechanisms 35 are arranged between the crane frame 31 and the main truss 1 corresponding to the two trusses, so that the transverse movement stability of the crane frame 31 is improved.

The continuous climbing mechanism 32 is arranged in the crane frame body 31 and comprises a lifting stand 321 and a climbing cylinder 322, a perforation (not shown) is formed in the crane frame body 31, the lifting stand 321 penetrates through the crane frame body 31 from the perforation, a plurality of jacks (not shown) distributed along the length direction of the lifting stand 321 are formed in the lifting stand 321, the climbing cylinder 322 is arranged on the crane frame body 31, and a plug pin matched with the jack of the lifting stand 321 in a plug manner is arranged at the extending end of a piston rod of the climbing cylinder 322. And, at least two groups of climbing cylinders 322 are provided corresponding to each lifting stand 321, and the lifting stand 321 can be pushed to move along the length direction (vertical direction in the embodiment) by alternately extending and retracting the climbing cylinders 322 of different groups.

Preferably, four lifting columns 321 are provided in this embodiment, four through holes are correspondingly formed in the crane frame body 31, four connecting lines of the through holes are rectangular, the through holes are square holes, the lifting columns 321 are square columns, four groups of climbing cylinders 322 are arranged corresponding to four faces of the square columns, and four groups of climbing cylinders 322 are arranged along the peripheries of the through holes. In addition, four groups of climbing cylinders 322 are formed in pairs, and the telescopic operation of the climbing cylinders 322 of two groups of the same group is synchronized and are oppositely arranged corresponding to the opposite surfaces of the lifting upright 321. In addition, it should be noted that each set of climbing cylinders 322 at least includes one cylinder to push the lifting upright 321, and the greater the number of cylinders, the higher the supporting capability of the lifting upright 321. Therefore, in this embodiment, three cylinders are disposed side by side in each set of climbing cylinders 322 to extend and retract synchronously, and an installation seat (not shown) is disposed at an end of the extending end of the piston rod of the three cylinders, and a plug pin that is in plug-in fit with the lifting upright 321 is fixed on the installation seat.

Further, a lifting parallel mechanism 36 is further disposed between two adjacent lifting upright posts 321, the lifting parallel mechanism 36 includes a parallel 361 and a double-head lifting cylinder 362, two ends of the parallel 361 are respectively provided with the double-head lifting cylinder 362, the double-head lifting cylinder 362 has two telescopic piston rods, and the extending ends of the two piston rods are respectively provided with a plug pin capable of being in plug fit with the lifting upright posts 321. The lifting parallel connection 361 is connected with two adjacent lifting upright posts 321, so that the lifting synchronization of the lifting upright posts 321 can be ensured.

The lifting frame body 33 is respectively provided at two ends of the lifting crane frame body 31, and the lifting frame body 33 can move along the length direction relative to the lifting crane frame body 31. Specifically, the crane frame 31 is provided with a traversing cylinder 332 that stretches out and draws back along the length direction thereof, a piston rod extending end of the traversing cylinder 332 is connected with the crane frame 33, meanwhile, two ends of the crane frame 31 are also provided with guide rails (not shown) that extend along the length direction thereof, and the crane frame 33 is provided with guide grooves (not shown) that are matched with the guide rails, so that the position of the crane frame 33 on the crane frame 31 is adjusted by the traversing cylinder 332.

Set up gyro wheel 331 on the lifting frame body 33, hoist engine hoist system 4 of this application mainly adopts hoist engine 41 to match wire rope 42 to carry out hoist operation, hoist engine hoist system 4's wire rope 42 process hoist frame body 33 is connected with hoist 34 after the gyro wheel 331 on, promptly the lifting frame body 33 plays the effect of direction to wire rope 42, then adjust the position of lifting frame body 33 through sideslip hydro-cylinder 332 and can adjust the position that wire rope 42 was transferred to adapt to the connection with hoist 34 of different specifications. The lifting appliance 34 comprises a lifting frame and a lifting claw 342, the lifting claw 342 is arranged below the lifting frame and used for being connected with a bridge structure to be lifted, and the lifting frame is provided with a movable pulley block 343 which is used for being connected with the steel wire rope 42 passing through the lifting frame body 33. Two groups of movable pulley blocks 343 are arranged at two ends of the lifting appliance 34 and correspond to the rollers 331 of the two lifting frame bodies 33 on the lifting crane frame body 31 respectively, so the winch lifting system 4 is provided with two groups of steel wire ropes 42 to be connected with the movable pulley blocks 343 at two ends of the lifting appliance through the rollers 331 of the two lifting frame bodies 33, namely the steel wire ropes 42 are connected with the movable pulley blocks 343 at two ends of the lifting appliance to lift the lifting appliance, the lifting stability is high, and the construction safety of lifting is improved.

The hanger comprises an upper hanging beam 3411 and a lower hanging beam 3412, the movable pulley blocks 343 are arranged at two ends of the upper hanging beam 3411, and the hanging claws 342 are arranged at the bottom side of the lower hanging beam 3412. The lower hanger 3412 is an H-shaped frame, and the hanger 34 is provided with one hanger each at four corner ends of the lower hanger 3412, and each of the hanging claws 342 is a four-claw hanging claw. In addition, a hydraulic cylinder 344 is further disposed on the lower hanger 3412 corresponding to each lifting claw 342, and the lifting claws 342 are pushed to slide on the lower hanger 3412 by the hydraulic cylinder 344, so that the positions of the lifting claws 342 are changed according to the positions of lifting points of the bridge structures to be lifted, that is, the lifting tool 34 is an adjustable lifting tool 34, so as to adapt to the lifting operations of the bridge structures with different specifications.

The upper hanging beam 3411 is arranged above the middle connecting beam of the lower hanging frame 3412, a rotating structure 345 is arranged between the upper hanging beam 3411 and the lower hanging frame 3412, the rotating structure 345 comprises an inner ring 3451 and an outer ring 3452 which are coaxially arranged, the inner ring 3451 and the outer ring 3452 can rotate relatively, the outer ring 3452 is bolted with the upper hanging beam 3411, the inner ring 3451 is bolted with the lower hanging frame 3412, the upper hanging beam 3411 is provided with a motor 3453, the inner ring 3453 drives the inner ring 3451 to rotate, the inner ring 3451 is provided with whole internal teeth, an output shaft of the motor 3453 is provided with gears meshed with the internal teeth, the upper hanging beam 3411 and the lower hanging frame 3412 are driven to rotate relatively through gear meshing when the motor 3453 rotates, the motor 3453 has a self-locking function, and the relative positions of the upper hanging beam 3411 and the lower hanging frame 3412 are fixed when the motor 3453 stops rotating. The gallows of this application sets up revolution mechanic 345 between last hanging beam 3411 and lower hoist 34, can be applicable to along the condition that the bridge was to widening gradually at the tower column section, adopts the minor face to be located along the bridge to, the long limit is located the horizontal bridge to when hoist and mount, promotes to the mounted position back and rotates 90 again and install, otherwise needs to install initiative stull and interim crossbeam between the cable tower to the tower column horizontal bridge outside, avoids its interference tower column and crossbeam installation.

The winch lifting system 4 comprises a winch 41, a steel wire rope 42 and a rope collecting drum 43, and the winch 41 is arranged on the crane frame body 31 and moves along with the crane frame body in the embodiment due to the limited space arrangement position of the winch lifting system, and the rope collecting drum 43 is arranged at the bottom of the tower column. Preferably, the friction type hoist 41 is used in the present application, and the wire rope 42 of the friction type hoist 41 is passed only during operation and is not wound on the hoist 41, so that the hoist 41 can be separated from the rope reel 43. One end of the steel wire rope 42 is wound at the rope winding drum 43, the other end passes through the winch 41, then passes through the roller 331 on the lifting frame body 33, and is connected with the movable pulley block 343 on the lifting tool 34, and the lifting tool 34 is pulled to lift by the friction between the winch 41 and the steel wire rope 42.

In the present embodiment, the lifting capacity of each set of winch systems 4 is 300 tons, and the diameter of the steel wire rope 42 is equal to

36mm, model number preferably->

36-35 WxK-1870, the breaking force of the steel wire rope 42 is 99.4 tons, and the lifting speed is 6m/min under rated load. The total length of the steel wire rope 42 is 3000m multiplied by 4, the self weight of the single friction type winding machine 41 is 30 tons, and the self weight of the single rope collecting machine is 10 tons.

In addition, after the current tower segment is lifted, the crane can climb to the top of the current tower segment by using the continuous climbing mechanism 32, at this time, the lifting appliance 34 is fixedly connected with the top of the tower segment, and the lifting upright 321 is lowered by using the climbing cylinder 322 so that the bottom of the lifting upright is anchored with the top of the lifting appliance 34. The lifting appliance 34 is a double-anchor lifting appliance 34, four groups of anchor seats 346 are arranged at positions corresponding to the four lifting upright posts 321, and each anchor seat 346 is provided with a plug pin, so that when the bottom of the lifting upright post 321 is propped against the lifting appliance 34, the plug pins can be inserted into insertion holes at the bottom of the lifting upright post 321 to realize the anchoring between the lifting upright post 321 and the lifting appliance 34 beam. And, each group of the anchor seats 346 is provided with at least two anchor seats 346 corresponding to each lifting stand 321, and the connection strength between the lifting stand 321 and the lifting appliance 34 is ensured by anchoring at least two points of the lifting stand 321. In the present embodiment, each set of the anchor seats 346 is provided with four anchor seats 346 to anchor four sides of each lifting stand 321 in one-to-one correspondence, so that the anchoring stability between the lifting stand 321 and the spreader 34 is high.

Then, the crane frame body 31 is lifted along the lifting stand 321 by the telescopic operation of the lifting cylinder 322 on the crane frame body 31, and the crane frame body can be stopped after the crane is lifted in place. The main truss 1 can climb along with the climbing of the crane frame body 31, the main truss 1 is firstly released from the anchoring between the sliding support frame 2 and the tower column before the crane frame body 31 climbs, and the sliding support frame 2 slides out a distance to be completely separated from the tower column, so that the main truss 1 and the tower column are relatively free, and at the moment, the load of the crane is transmitted to the top of the tower column through the lifting upright post 321 and the lifting appliance 34 to bear the load. Or, before the crane frame 31 climbs, the limitation before the crane frame 31 and the main truss 1 is released, after the crane frame 31 climbs in place, the limitation of the steel wire rope 42 and the lifting tool 34 is released, a temporary lifting tool 34 is arranged at the end part of the steel wire rope 42 for lifting, the lifting frame 33 at the two ends of the crane frame 31 is adjusted to adjust the position of the temporary lifting tool 34 to be connected with the main truss 1, at the moment, the connection between the sliding support frame 2 and the tower column is released, the main truss 1 and the sliding support frame 2 are lifted to the lower position of the crane frame 31 by using the temporary lifting tool 34, the crane frame 31 is connected with the main truss 1, and the sliding support frame 2 is anchored with the tower column section at the current top after the installation, so that the self-climbing of the crane is completed.

The self-climbing of the crane mainly depends on the cooperation of the climbing oil cylinder 322 and the plug pin, the consistency and the synchronism of the actions of all the lifting oil cylinders are ensured by adopting a multi-point synchronous control system, and the synchronous control system adopts a mature load-sensitive electro-hydraulic proportional multi-way valve on the hydraulic system design, so that the point-to-point independent control of all the lifting oil cylinders can be realized. In the lifting process, the electric control system can acquire the position of a piston rod of the oil cylinder according to a displacement sensor arranged on the oil cylinder, correspondingly adjusts the oil supply quantity of each proportional valve in real time according to different positions of the oil cylinder, and realizes synchronous control of all the lifting oil cylinders in the whole process by adopting a PID algorithm (namely a control algorithm combining three links of proportion, integral and derivative).

In conclusion, the lifting and jacking integrated self-climbing crane integrates lifting and self-climbing, does not need to additionally arrange large lifting equipment, solves the problems of high manufacturing cost and slow progress of the existing tower crane lifting structure, and lifts the crane to the next section lifting position through a continuous lifting structure after the construction of a single section structure is completed, and is sequentially circulated.

Moreover, the lifting and jacking integrated self-climbing crane is not only suitable for the construction of the cable tower with the single-tower column structure, but also can meet the construction of the double-tower column cable tower.

Specifically, when the cable tower of single tower column structure is constructed, the main truss 1 is erected at the top tower column section where the tower column meets the construction height requirement, and the lifting operation of the tower column section can be completed by arranging a set of lifting and jacking integrated overhead travelling crane system 3 on the main truss 1.

Therefore, the application method of the lifting and jacking integrated self-climbing crane comprises the following steps of:

s001, arranging a lifting and jacking integrated self-climbing crane at the top of a tower column meeting the requirement of construction height. The main truss 1 of the lifting and jacking integrated self-climbing crane is erected at the top of a single tower column along a transverse bridge, two groups of sliding support frames 2 are arranged along the transverse bridge direction and are arranged on two sides of the tower column, and the main truss 1 is provided with a set of lifting and jacking integrated crown block system 3 and a winch lifting system 4.

And S002, lifting the steel tower section from one end of the main truss 1 in the length direction by utilizing the lifting and jacking integrated overhead travelling crane system 3 and the winch lifting system 4 to be installed above the installed tower column section.

The main truss 1 is located its length direction's one end and sets up the slope opening to make things convenient for jack-up integrated overhead traveling crane system 3 and hoist and mount system 4 hoist and mount steel tower section to enter into main truss 1 and transport, the position of jack-up integrated overhead traveling crane system 3 on main truss 1 is controllable, thereby ensures the steel tower section of hoist and mount and the accurate counterpoint of tower post that has been installed, ensures the installation accuracy of tower post.

During the lifting of the steel tower segment by the lifting and jacking integrated crown block system 3 and the winch lifting system 4, the sliding support frame 2 below the main truss 1 is anchored with the tower column, so that the main truss 1 is ensured to have enough supporting capacity to realize the lifting operation of the steel tower segment.

And S003, after the installation of the hoisted steel tower section is finished, the lifting and jacking integrated self-climbing crane is moved to the top of the currently installed steel tower section by utilizing the lifting and jacking integrated crown block system 3.

The known lifting and jacking integrated crown block system comprises a lifting crown block frame body 31, a continuous climbing mechanism 32, a lifting frame body 33 and a lifting appliance 34, wherein the continuous climbing mechanism 32 comprises a lifting stand 321 and a climbing cylinder 322. When the crane of this application climbs, through climbing hydro-cylinder 322 makes lift stand 321 remove to rather than the hoist 34 butt at the tower column top of anchor in the below, lift stand 321's bottom and hoist 34 anchor through the plug pin of its anchor seat 346 and be connected, after guaranteeing lift stand 321, hoist 34 and tower column top three anchor, climbing hydro-cylinder 322 carries lifting-frame body 31 along vertical direction climbing to the top of lift stand 321. The main truss 1 can climb along with the climbing of the crane frame body 31, and in the climbing process, the sliding support frame 2 at the bottom of the main truss 1 is separated from the tower column; or, the crane frame body 31 and the main truss 1 can be separated first, and after the crane frame body 31 climbs in place, the main truss 1 is hoisted to the lower part of the crane frame body 31 by the hoisting frame bodies 33 at the two ends of the crane frame body 31 and the temporary lifting tool 34. It should be noted that when the main truss 1 is lifted, the sliding support frame 2 at the bottom of the main truss 1 is separated from the tower column, and after the main truss 1 moves to the top of the currently installed steel tower segment, the sliding support frame 2 is anchored with the top of the current tower column, so that the self-climbing of the lifting and jacking integrated self-climbing crane is completed.

And (S002) and S003 are circulated, namely, the tower column is connected up through the circulating operation of the climbing operation of the lifting steel tower section and the lifting and jacking integrated crown block system 3 until the construction of the tower column is completed.

When the cable tower for the double-tower column structure is constructed, besides the construction of connecting the single tower column, the beam between the two tower columns is also required to be constructed. When the cable tower of the double-tower column structure is constructed by utilizing the lifting and jacking integrated self-climbing crane, the main truss 1 of the lifting and jacking integrated self-climbing crane needs to be erected on two adjacent tower columns which are in the transverse bridge direction and meet the requirement of the construction height, meanwhile, two groups of sliding support frames 2 are respectively arranged corresponding to the two tower columns, and each group of sliding support frames 2 are respectively arranged on two sides of the corresponding tower column, so that the two ends of the main truss 1 can be effectively supported.

In addition, when constructing the cable tower of two tower post structures, because cable tower structure is more complicated than the cable tower structure of single tower post, can be through setting up construction operation platform 5 in main truss 1 in order to make things convenient for the workman to construct. The construction operation platform 5 comprises a crown block operation 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 repairing platform 56, wherein the upper maintenance platform 52 is arranged on the top side of the main truss 1, the crown block operation maintenance platform 51 is arranged on the crane frame body 31, an upper and lower channel 57 is arranged between the crown block operation platform and the upper maintenance platform 52, the lower maintenance platform 53 is arranged on the lower side of the main truss 1, an upper and lower channel 57 is also arranged between the upper maintenance platform 52 and the lower maintenance platform 53, the upper and lower channel 57 is arranged in a diagonal bracing arrangement attached to the main truss 1 so as to ensure the structural strength and stability of the upper and lower channel 57, the transverse sliding welding platform 54 is arranged along the transverse bridge direction, the longitudinal welding platform 55 is arranged along the bridge direction, and the transverse sliding welding platform 54 and the longitudinal sliding welding platform are positioned at the top of a tower column so that after the tower column section to be hoisted to the top of the installed tower column section, and the welding operation between the two sections is performed. The repairing 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 an upper channel 57 and a lower channel 57 are arranged between the repairing platform 56 and the longitudinal welding platform 55. This application sets up upper and lower passageway 57 between the different platforms of a plurality of high positions and communicates, and face the high guard rail of limit protection all adoption 1.5m to make things convenient for the workman to reach each construction operation platform 5 through upper and lower passageway 57, can accomplish the operation of different positions.

So this application hoist is when constructing to the cable tower of two tower column structures, through processing construction operation platform 5 on main truss 1 to the joint design of construction operation platform 5 and main truss 1 makes construction operation platform 5 can follow main truss 1 and jack-up together under the drive of continuous climbing mechanism 32, need not to set up conventional ring direction operation platform in addition.

In addition, to the cable tower of two tower column structures, set up two sets of jack-up integral type crown block system 3 on the main truss 1 of this application, can carry out the synchronous construction of two tower columns, accelerate the efficiency of construction then to the cable tower of two tower column structures still includes the crossbeam, and the usable two sets of jack-up integral type crown block system 3 come to hoist the crossbeam and install.

Then please refer to fig. 9, the construction method of the double column cable tower includes the following steps:

firstly, a lifting and jacking integrated self-climbing crane is installed between two adjacent tower columns along the transverse bridge direction, which meet the requirements of construction height.

The lifting and jacking integrated self-climbing crane comprises a main truss 1, a sliding support frame 2, a lifting and jacking integrated crown block system 3, a winch lifting system 4 and a construction operation platform 5, wherein the main truss 1 is erected between two adjacent tower columns meeting the construction height along a transverse bridge direction, the sliding support frame 2 is positioned below the main truss 1 and respectively corresponds to the two tower columns to be arranged in two groups, and the sliding support frame 2 is anchored with a top tower column section to achieve the effect of supporting the main truss 1 and an upper structure thereof.

The lifting and lifting integrated crane system 3 is arranged on the main truss 1, the lifting and lifting integrated crane system 3 can move along the length direction of the main truss 1, the lifting and lifting integrated crane system 3 comprises a lifting and lifting frame body 31, a continuous climbing mechanism 32, a lifting and lifting frame body 33 and a lifting appliance 34, the lifting and lifting frame body 31 is arranged on the main truss 1, a driving mechanism 35 for pushing the lifting and lifting frame body 31 to move along the length direction of the main truss 1 is arranged between the lifting and lifting frame body 31, the continuous climbing mechanism 32 is arranged on the lifting and lifting frame body 31 to lift the lifting and lifting frame body 31 along the vertical direction, the lifting and lifting frame body 33 is connected with the lifting appliance 34 through the lifting and lifting frame body 33 to be used for lifting and lifting the lifting appliance 34 to lift the steel tower section.

And lifting the steel tower section by using a lifting and jacking integrated self-climbing crane to connect the tower column.

Specifically, the steel tower segment is hoisted to the top of the installed tower column segment by using the lifting and jacking integrated crown block system 3 and the winch lifting system 4 for height connection, after the installation of the current top tower column segment is completed, the continuous climbing mechanism 32 of the lifting and jacking integrated crown block system 3 is moved from the current connected steel tower segment to the top of the installed steel tower segment, and then the next steel tower segment is hoisted.

The self-climbing step of the crane on the double-tower column cable tower is the same as that of the crane installed on the single-tower column cable tower, namely, the lifting appliance 34 for lifting the steel tower segment is anchored at the top of the currently installed steel tower segment, the lifting upright 321 of the continuous climbing mechanism 32 is driven by the climbing cylinder 322, the bottom of the lifting upright 321 is abutted with the lifting appliance 34 anchored at the top of the installed steel tower segment, and the lifting upright 321 and the lifting appliance 34 are locked through the anchoring seat 346 and the plug pin arranged at the top of the lifting appliance 34. After the crane frame 31 is driven by the climbing cylinder 322 to climb to the target height of the lifting stand 321, the fixation of the sliding support frame 2 and the tower column is released, the main truss 1 is lifted to the lower part of the crane frame 31 by using the winch lifting system 4, and then the sliding support frame 2 and the tower column section installed at the current top are anchored by the tower wall fixed hinged support 23.

It should be noted that the self-climbing of the crane of the double column cable tower needs to be performed after the symmetrical installation and welding of the steel tower sections of the two towers, and the self-climbing systems on the two towers also need to operate synchronously to ensure the straight lifting of the main truss 1. Meanwhile, the lifting and jacking integrated self-climbing crane for double-tower column cable tower construction further comprises a construction operation platform 5, wherein the construction operation platform 5 is attached to the main truss 1, and the self-climbing system drives the construction operation platform 5 to climb while lifting the main truss 1.

In addition, in the process of connecting the tower columns, the temporary cross beam is hoisted to different height positions of the tower columns from bottom to top by utilizing the hoisting and jacking integrated crown block system 3 and the hoist and crane lifting system 4 to connect the two tower columns.

After the two tower columns are constructed to the target height, the upper cross beam and the lower cross beam are sequentially hoisted to the designated height position in sequence from top to bottom and are connected with the two tower columns.

Specifically, after the tower column is constructed to a preset tower top height, an assembly support is arranged at the tower bottom, and the height position of the assembly support is consistent with the height of the installation station of the lower beam. And hoisting the beam sections to the splicing brackets by using the lifting and jacking integrated self-climbing crane, splicing to form an integral upper beam, and integrally hoisting the upper beam to an upper beam installation station by using the lifting and jacking integrated self-climbing crane and installing and fixing the upper beam to finish the installation construction of the upper beam.

And then, hoisting beam sections of the self-climbing crane by using three sections by using a lifting and jacking integrated self-climbing crane, hoisting beam sections at two ends of the lower beam for installation, hoisting the middle beam section for folding the lower beam, and then completing the installation construction of the lower beam.

And finally, sequentially dismantling the temporary steel beam and the lifting and jacking integrated self-climbing crane to finish the construction of the double-tower steel cable tower.

After the construction of the tower columns and the cross beams of the double-tower column cable tower is completed, the splicing support for splicing the cross beams, the temporary cross beams for connecting the two tower columns and the lifting and jacking integrated self-climbing crane are sequentially removed from bottom to top.

When the lifting and jacking integrated self-climbing crane is dismantled, the lifting and jacking integrated crown block system 3 is manufactured at the top of the tower column, the winch lifting system 4 lifts 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. The main girder 1 is then integrally lowered to the ground by means of the hoist hoisting system 4, and the main girder 1 is then disassembled by means of crawler cranes.

And then the crane is used for dismantling the lifting and jacking integrated crown block system 3 positioned at the top of the tower column, so as to finish the dismantling of the lifting and jacking integrated self-climbing crane.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. The lifting and jacking integrated self-climbing crane is suitable for the construction of a single-tower column cable tower and is characterized by comprising a main truss, a sliding support frame, a crown block system and a winch lifting system;

2. The lifting and jacking integrated self-climbing crane according to claim 1, wherein the lifting upright is provided with a plurality of jacks arranged along the length direction of the lifting upright, and the extending end of a piston rod of the climbing cylinder is provided with a plug pin for being in plug fit with the jacks.

3. The lifting and jacking integrated self-climbing crane according to claim 1, wherein a plurality of lifting columns are provided, a plurality of through holes are formed in the lifting and jacking frame body corresponding to the plurality of lifting columns, the lifting columns penetrate through the lifting and jacking frame body from the through holes, and the climbing cylinder is arranged along the periphery of the through holes.

4. The lifting and jacking integrated self-climbing crane according to claim 1, wherein the lifting frame body is respectively arranged at two ends of the lifting frame body in the length direction, and a traversing oil cylinder for pushing the lifting frame body to move along the length direction of the lifting frame body is arranged between the lifting frame body and the lifting frame body.

5. The lifting and jacking integrated self-climbing crane according to claim 4, wherein the lifting frame body is provided with rollers, the lifting tool comprises a lifting frame, lifting claws and movable pulley blocks, the movable pulley blocks are arranged in two groups and are respectively positioned at two ends of the lifting frame, the winch lifting system is connected with the movable pulley blocks at two ends of the lifting tool correspondingly through the two rollers of the lifting frame body, and the lifting claws are used for anchoring with the top of a lifted bridge structure.

6. The lifting and jacking integrated self-climbing crane according to claim 5, wherein an anchor seat is provided on the hanger, a plug pin for plugging and matching with a jack at the bottom of the lifting column is provided on the anchor seat, and the lifting claw is anchored with the bridge structure by bolting to anchor the lifting column with the tower section.

7. The lifting and jacking integrated self-climbing crane according to claim 5, wherein the hanger comprises an upper hanging beam and a lower hanger, the movable pulley block is arranged at two ends of the upper hanging beam, a hanging claw is arranged at the bottom side of the lower hanger, and a hydraulic cylinder pushing the hanging claw to slide on the lower hanger is arranged on the lower hanger.

8. The lifting and jacking integrated self-climbing crane according to claim 7, wherein the lower hanger is an H-shaped frame, the upper hanger beam is arranged above the middle connecting beam of the lower hanger, a rotating structure is arranged between the upper hanger beam and the lower hanger, the rotating structure comprises an inner ring and an outer ring which are coaxially arranged, the inner ring and the outer ring can rotate relatively, the outer ring is bolted with the upper hanger beam, the inner ring is bolted with the lower hanger, and the upper hanger beam is provided with a motor for driving the inner ring to rotate.

9. A method of using a self-climbing crane as defined in any one of claims 1 to 8, adapted for single tower column cable towers, comprising the steps of:

10. The method of claim 9, wherein the slip frame of the lift-and-lift integrated self-climbing crane is anchored to the tower during lifting of the tower section by the lift-and-lift integrated self-climbing crane;