CN120573611B - Top lifting device of tower crane and quick assembly disassembly structure thereof - Google Patents
Top lifting device of tower crane and quick assembly disassembly structure thereofInfo
- Publication number
- CN120573611B CN120573611B CN202511093596.9A CN202511093596A CN120573611B CN 120573611 B CN120573611 B CN 120573611B CN 202511093596 A CN202511093596 A CN 202511093596A CN 120573611 B CN120573611 B CN 120573611B
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- sides
- frame
- bearing seat
- seat
- upright
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
本发明公开了一种塔机的顶部升降装置及其快速拆装结构，包括若干个立柱框架，若干个立柱框架沿竖直方向相连形成供升降装置爬升的立柱，立柱框架的顶端左右两侧均设置有卡接条，其底端左右两侧开设有相对应的卡接口；立柱框架的上下两端中部均设置有加强架，且上侧的加强架顶端设置有加强卡条，下侧的加强架底端开设有对应的加强卡口，立柱框架的上部设置有锁定组件，立柱框架的下部设置有对应的锁定孔；本发明通过自动化装卸与双重锁定结构，实现了塔机标准节的高效、精准、安全拆装，解决了高空人工作业风险与拆装效率低下的行业难题。
This invention discloses a top lifting device for a tower crane and its quick assembly/disassembly structure, comprising several column frames connected vertically to form columns for the lifting device to climb. Each column frame has locking strips on both the left and right sides of its top and corresponding locking interfaces on both the left and right sides of its bottom. Reinforcing frames are provided at the middle of both the upper and lower ends of the column frames, with reinforcing strips at the top of the upper reinforcing frame and corresponding reinforcing slots at the bottom of the lower reinforcing frame. A locking component is provided at the upper part of the column frame, and a corresponding locking hole is provided at the lower part. This invention, through automated loading and unloading and a double locking structure, achieves efficient, precise, and safe assembly/disassembly of standard tower crane sections, solving the industry problems of high-altitude manual operation risks and low assembly/disassembly efficiency.
Description
Technical Field
The invention relates to the technical field of tower cranes, in particular to a top lifting device of a tower crane and a quick dismounting structure thereof.
Background
The hydraulic climbing technology is widely applied in the field of building construction, particularly in the construction of complex structures such as high-rise buildings, towers and the like, a traditional hydraulic climbing device mainly comprises a hydraulic system, climbing guide rails, wall-attached supports and power devices, the hydraulic system controls climbing actions through pump stations, hydraulic cylinders and oil ways, the wall-attached supports are used for fixing the climbing device, and stability in the construction process is ensured.
Climbing device among the prior art generally adopts sectional type to promote to pull Gao Zao the height of tower crane, needs artificial layer by layer to build the stand frame, and generally adopts bolted connection or bolt to fix when the installation, needs high altitude construction personnel to operate layer by layer, has great safety risks such as falling, object striking, and single section stand frame installation is on average more than 45 minutes, and need rely on auxiliary crane cooperation, severely restricts the time limit progress in super high-rise building construction.
Disclosure of Invention
The invention aims to provide a top lifting device of a tower crane and a quick dismounting structure thereof, so as to solve the problems in the background technology.
The quick dismounting structure comprises a plurality of upright frames, wherein the upright frames are connected in the vertical direction to form an upright for a lifting device to climb, clamping bars are arranged on the left side and the right side of the top end of each upright frame, corresponding clamping ports are formed on the left side and the right side of the bottom end of each upright frame, reinforcing frames are arranged in the middle of the upper end and the lower end of each upright frame, reinforcing clamping bars are arranged on the top end of each reinforcing frame on the upper side, corresponding reinforcing bayonets are formed on the bottom end of each reinforcing frame on the lower side, locking assemblies are arranged on the upper portions of the upright frames, corresponding locking holes are formed on the lower portions of the upright frames, and when two adjacent upright frames are in primary butt joint with the corresponding clamping ports and the corresponding reinforcing bayonets through the clamping bars, the locking assemblies can be inserted into the locking holes of the upright frames on the upper side to realize mechanical interlocking.
Further, the upper portion left and right sides of stand frame all is provided with locking Assembly, locking Assembly includes mounting bracket, a plurality of card solid pole and two-way lead screw, all seted up the regulation chamber in the upper portion left and right sides of stand frame, two-way lead screw rotates the assembly in the regulation intracavity, the left and right sides front end of stand frame all is provided with the rotary block, the pivot of rotary block runs through and extends to and be connected with corresponding two-way lead screw, the mounting bracket is assembled in the regulation intracavity in the lifting, the equal threaded connection in both sides of two-way lead screw has the slider, each articulated respectively to be connected with the alignment jig between slider and the mounting bracket bottom, the top of mounting bracket is provided with a plurality of along length direction equidistant the card solid pole, the top left and right sides of stand frame all is provided with a plurality of and the corresponding regulation hole of card solid pole, card solid pole can rise to the outside along the regulation hole, the bottom left and right sides of stand frame is provided with a plurality of locking hole that corresponds.
The invention also provides a top lifting device of the tower crane, which comprises a lifting mechanism and the quick dismounting structure, wherein the lifting mechanism comprises two climbing devices, a first telescopic cylinder and a self-dismounting device, the two climbing devices lift along the upright column frame, a plurality of first telescopic cylinders are connected between the two climbing devices, and the self-dismounting device is arranged at the top of the upper climbing device;
The self-loading and unloading device comprises a mounting platform, a winch arranged on the upper side of the mounting platform, and two winch steel wire ropes and bearing seats wound on two sides of the winch, wherein rollers are arranged on the left side and the right side of the front end of the mounting platform, the tail ends of the winch steel wire ropes on the two sides are respectively hung downwards after passing through the roller elastic turning on the corresponding side and are connected with two sides of the bearing seats, an opening matched with the upright column frame is formed in the mounting platform, the mounting platform is arranged on the top end of the upper climbing device through a plurality of support columns, the front side of the top of the upper climbing device is arranged on the overturning assembly, a bearing plate is movably arranged on the bearing seat, the bearing plate is vertically arranged with the bearing seat, a power assembly connected with the bearing plate is arranged on the bearing seat, when the bearing seat ascends to the position of the overturning assembly, the overturning assembly is connected with the bearing seat assembly and drives the bearing seat to rotate by 90 degrees to be in a horizontal state, and the power assembly on the bearing seat pushes the movably arranged bearing plate to horizontally move, so that the upright column frame slides into the uppermost layer to complete butt joint.
Further, the upset subassembly includes the upset seat and articulates the second telescopic cylinder that sets up in upside climbing device both sides, the upside climbing device's front end both sides all are provided with the support, rotate between the support of both sides and be connected with the bull stick, and the both sides end of bull stick all is provided with eccentric block, and the piston rod of the flexible jar of both sides second articulates with the eccentric block of corresponding side respectively, the upset seat is installed on the bull stick, and the front end both sides of upset seat all are provided with the inserted bar, the locating hole that corresponds has been seted up on the bearing seat, when the bearing seat risees to the upset seat below, the inserted bar inserts in the locating hole.
Furthermore, the structure of the positioning hole is gradually contracted from top to bottom, and the lower dimension of the positioning hole is matched with the dimension of the inserted link.
Further, power component includes drive lead screw and slide bar, the slide mouth has all been seted up to the left and right sides of bearing seat, drive lead screw and slide bar set up respectively in both sides slide mouth, and all slide on the slide mouth of both sides and be provided with the slide, one of them slide and slide bar sliding connection, opposite side and drive lead screw threaded connection, the bearing seat is provided with the first motor of being connected with drive lead screw transmission, and the top of both sides slide all is provided with the supporting seat, the supporting seat links to each other with the loading board to rotatory drive the bearing seat displacement through the drive lead screw.
Further, both sides the bottom of slide all is provided with the fixing base, each all install the second motor on the fixing base, the output shaft end of second motor is provided with the sleeve with revolve piece looks adaptation, mounting platform's rear side bottom is provided with the flexible jar of third, the piston rod end of the flexible jar of third is provided with the push pedal.
Further, the middle part of the bearing seat is provided with a fixing clamping strip matched with the reinforcing bayonet, the middle part of the bottom end of the bearing plate is provided with a through hole, and both sides of the bearing plate are provided with limiting plates.
Further, the bearing ropes are connected between the upper ends of the two sides of the bearing seat and the two sides of the bearing plate, and the lower end of the bearing seat is provided with the balancing weight.
Further, the specific structure of the climbing device can refer to the mechanism of the existing tower crane climbing mechanism.
Compared with the prior art, the invention has the beneficial effects that:
1. the double clamping structure (the transverse clamping strip and the longitudinal reinforcing clamping strip) ensures that the frame is firmly connected, has strong wind resistance and torsion resistance, realizes instantaneous locking and unlocking of the upright frame by driving the clamping rod to stretch out and draw back through the bidirectional screw rod, does not need bolt fastening, has remarkable operation efficiency, forms mechanical interlocking after the clamping rod is inserted into the locking hole, can resist wind load, hanging swing and other dynamic forces during tower crane operation, and prevents the frame from shifting or loosening.
2. According to the invention, the self-loading and unloading device is additionally arranged on the climbing device, the full-flow automation of lifting, overturning, pushing and locking is completed through the cooperative work of the winch, the overturning assembly and the power assembly, the automatic lifting of the upright post frame is realized, manual intervention is not needed in the whole process from lifting to butting, the rapid lifting and reverse dismounting are supported, the single circulation time is shortened to 1/3 of that of the traditional method, the climbing efficiency of the tower crane is obviously improved, the manual high-altitude dismounting is replaced, the dangerous operations such as climbing, manual locking and the like are eliminated, and the construction safety is ensured.
3. The two-way screw rod is controlled by the second motor driving rotary block, remote synchronous expansion and contraction of the clamping rod are realized, the risk of high-altitude manual operation is avoided, the problems of time consumption in traditional bolt connection, dependence on crane cooperation and the like are solved, and modularization rapid assembly is realized.
Drawings
FIG. 1 is an assembly view of a roof lifting device and quick release structure of the present invention;
FIG. 2 is a schematic view of a pillar frame structure according to the present invention;
FIG. 3 is a front view of the locking assembly of the present invention;
FIG. 4 is a schematic view of a top lift apparatus according to the present invention;
FIG. 5 is a schematic view of a carrier structure according to the present invention
FIG. 6 is a schematic view of the handling state of the present invention;
FIG. 7 is a schematic view of the docking station of the present invention;
Fig. 8 is a schematic view of the bearing seat in the docked state of the present invention.
In the figure, a column frame-1, a clamping strip-2, a clamping connector-3, a reinforcing frame-4, a reinforcing clamping strip-5, a reinforcing bayonet-6, a locking hole-7, a mounting rack-8, a clamping rod-9, a bidirectional screw rod-10, a rotating block-11, a sliding block-12, an adjusting rack-13, a climbing device-14, a first telescopic cylinder-15, a mounting platform-16, a winch-17, a winch wire rope-18, a bearing seat-19, a roller-20, a supporting column-21, a bearing plate-22, a turnover seat-23, a second telescopic cylinder-24, a support-25, a rotating rod-26, an eccentric block-27, a plug rod-28, a positioning hole-29, a driving screw rod-30, a sliding rod-31, a sliding port-32, a sliding seat-33, a supporting seat-34, a fixed seat-35, a second motor-36, a sleeve-37, a fixed clamping strip-38, a through port-39, a limiting plate-40, a bearing rope-41 and a balancing weight-42.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, a quick dismounting structure of a tower crane comprises a plurality of upright frames 1, wherein the upright frames 1 are connected in the vertical direction to form an upright for a lifting device to climb, clamping strips 2 are arranged on the left side and the right side of the top end of each upright frame 1, corresponding clamping ports 3 are formed on the left side and the right side of the bottom end of each upright frame 1, reinforcing frames 4 are arranged in the middle of the upper end and the lower end of each upright frame 1, reinforcing clamping strips 5 are arranged at the top end of each reinforcing frame 4 on the upper side, corresponding reinforcing bayonets 6 are formed at the bottom end of each reinforcing frame 4 on the lower side, locking assemblies are arranged at the upper parts of the upright frames 1, corresponding locking holes 7 are formed at the lower parts of the upright frames 1, and when the adjacent upright frames 1 are in primary butt joint with the corresponding clamping ports 3 and the reinforcing bayonets 6 through the clamping strips 2, the locking assemblies can be inserted into the locking holes 7 of the upright frames 1 on the upper side.
In this embodiment, the upper portion left and right sides of upright frame 1 all is provided with locking subassembly, locking subassembly includes mounting bracket 8, a plurality of clamping pole 9 and two-way lead screw 10, the regulation chamber has all been seted up in the upper portion left and right sides of upright frame 1, two-way lead screw 10 rotates the assembly in the regulation intracavity, the left and right sides front end of upright frame 1 all is provided with rotatory piece 11, rotatory piece 11's pivot runs through and extends to be connected with corresponding two-way lead screw 10, mounting bracket 8 lift assembly is in the regulation chamber, the equal threaded connection in both sides of two-way lead screw 10 has slider 12, respectively articulated be connected with alignment jig 13 between each slider 12 and the mounting bracket 8 bottom, the top of mounting bracket 8 is provided with a plurality of clamping pole 9 along length direction equidistant, the top left and right sides of upright frame 1 all is provided with a plurality of regulation hole corresponding with clamping pole 9, clamping pole 9 can rise to the outside along the regulation hole, the bottom left and right sides of upright frame 1 is provided with a plurality of locking hole 7 that corresponds.
The vertical column frames 1 are quickly assembled through transverse insertion (left side and right side) of the clamping strips 2 and the clamping connectors 3 and longitudinal insertion (middle part) of the reinforcing clamping strips 5 and the reinforcing clamping openings 6, stability of the frames in horizontal and vertical directions is guaranteed through the double clamping design, shaking is avoided, meanwhile, stress is further dispersed through matching of the reinforcing frames 4 and the reinforcing clamping strips 5, and plastic deformation of the connecting parts of the frames due to dynamic loads (such as wind force and hanging swing) is avoided.
Then the rotary block 11 at the upper part of the upright post frame 1 is rotated to drive the bidirectional screw rod 10 to rotate, the mounting frame 8 is pushed to rise through the linkage of the sliding block 12 and the adjusting frame 13, the clamping rod 9 extends out of the adjusting hole and is inserted into the locking hole 7 of the upright post frame 1 above, the symmetrical thread design of the bidirectional screw rod 10 ensures the synchronous action of the clamping rods 9 at two sides, uneven stress at one side is avoided, rigid connection is formed after locking, and the movement in the horizontal direction is limited through the clamping rod 9, so that the fixation between the two upright post frames 1 is realized, and the displacement can not occur during working.
Referring to fig. 1 to 8, the present embodiment further provides a top lifting device of a tower crane, including a lifting mechanism and the foregoing quick-dismantling structure, where the lifting mechanism includes two climbing devices 14, a first telescopic cylinder 15 and a self-dismantling device, the two climbing devices 14 ascend and descend along the upright frame 1, a plurality of first telescopic cylinders 15 are connected between the two climbing devices 14, the self-dismantling device is installed on the top of the upper climbing device 14, the climbing devices 14 stop at positions in the upright frame 1 by clamping claws disposed around, and the first telescopic cylinders drive the two climbing devices 14 to alternately move, so as to vertically climb along the upright frame 1 and drive the whole top structure (including the self-dismantling device) to ascend.
The self-loading and unloading device comprises a mounting platform 16, a winch 17 arranged on the upper side of the mounting platform 16, two winch steel wire ropes 18 and a bearing seat 19 which are wound on the two sides of the winch 17, wherein the left side and the right side of the front end of the mounting platform 16 are respectively provided with a roller 20, the tail ends of the winch steel wire ropes 18 on the two sides are respectively connected with the two sides of the bearing seat 19 through elastic turning of the roller 20 on the corresponding side, the mounting platform 16 is provided with an opening matched with the upright post frame 1, the mounting platform 16 is arranged on the top end of the upper climbing device 14 through a plurality of support columns 21, the front side of the top of the upper climbing device 14 is arranged on a turning component, the bearing seat 19 is movably provided with a bearing plate 22, the bearing plate 22 and the bearing seat 19 are vertically arranged, and the bearing seat 19 is provided with a power component connected with the bearing plate 22;
In this embodiment, the turnover assembly includes a turnover seat 23 and second telescopic cylinders 24 hinged on two sides of the upper climbing device 14, two sides of the front end of the upper climbing device 14 are respectively provided with a support 25, a rotating rod 26 is rotatably connected between the two supports 25, two ends of the rotating rod 26 are respectively provided with an eccentric block 27, piston rods of the second telescopic cylinders 24 on two sides are respectively hinged with the eccentric blocks 27 on the corresponding sides, the turnover seat 23 is mounted on the rotating rod 26, two sides of the front end of the turnover seat 23 are respectively provided with an inserting rod 28, the bearing seat 19 is provided with a corresponding positioning hole 29, when the bearing seat 19 is lifted to the lower part of the turnover seat 23, the inserting rod 28 is inserted into the positioning hole 29, the structure of the positioning hole 29 is in a gradual shrinkage form from top to bottom, and the lower size of the positioning hole 29 is matched with the size of the inserting rod 28;
In this embodiment, the power assembly includes a driving screw 30 and a sliding rod 31, sliding openings 32 are respectively provided on the left and right sides of the bearing seat 19, the driving screw 30 and the sliding rod 31 are respectively provided on the two side sliding openings 32, sliding seats 33 are respectively provided on the two side sliding openings 32 in a sliding manner, one sliding seat 33 is slidably connected with the sliding rod 31, the other side is in threaded connection with the driving screw 30, the bearing seat 19 is provided with a first motor in transmission connection with the driving screw 30, the top ends of the two side sliding seats 33 are respectively provided with a supporting seat 34, and the supporting seats 34 are connected with the bearing plate 22, so that the bearing seat 19 is driven to displace by the rotation of the driving screw 30.
The working principle of this embodiment is as follows:
the full-automatic heightening of the standard section (upright column frame 1) is realized through the cooperative work of the winch 17, the overturning assembly and the power assembly, when the heightening work is carried out, the heightening upright column frame 1 is firstly placed on the bearing seat 19, the climbing device 14 climbs to a designated position, and the mounting platform is higher than the uppermost upright column frame 1;
The hoist 17 promotes and bears seat 19 to overturn seat 23 below, the toper entry of progressive locating hole 29 automatic correction deviation, along with hoist 17 continues to promote, make inserted bar 28 slide into the accurate cooperation section of locating hole 29 lower part, make overturn seat 23 and bear seat 19 link as an organic wholely through inserted bar 28, then two side second telescopic cylinder 24 synchronous stretches out and draws back, promote eccentric block 27 rotation, drive bull stick 26 and upset seat 23 rotation 90, thereby synchronous drive bear seat 19 synchronous upset, the upright column frame 1 on it is rotated to vertical state by the horizontal placement, and upright column frame 1 after the upset aligns with upright column frame 1 on the uppermost layer.
After overturning, the driving screw rod 30 of the power assembly is driven by the first motor to push the sliding seat 33 and the bearing plate 22 to horizontally move, the bearing plate 22 contacts with the side wall of the upright frame 1 and pushes the upright frame 1 until the upright frame 1 completely slides into the uppermost layer, the reinforcing bayonet 6 is automatically embedded into the reinforcing clamping strip 5 of the lower standard section, and the clamping interface 3 is automatically embedded into the clamping strip 2, so that preliminary fixing is completed.
Then the turnover assembly reversely rotates to turn the bearing seat 19 back to the vertical state again, and finally the winch 17 vertically lowers the bearing seat 19 to the ground again, so that the next height-connecting work can be performed.
In this embodiment, the bottom ends of the two side sliding seats 33 are respectively provided with a fixed seat 35, each fixed seat 35 is provided with a second motor 36, the tail end of the output shaft of the second motor 36 is provided with a sleeve 37 matched with the rotary block 11, the bottom end of the rear side of the mounting platform is provided with a third telescopic cylinder (not shown), and the tail end of the piston rod of the third telescopic cylinder is provided with a push plate;
When the driving screw rod 30 drives the bearing plate 22 to move to the tail end of the other side, the heightened upright post frame 1 is enabled to slide into butt joint with the uppermost upright post frame 1 completely, at the moment, the mounting seat synchronously moves to enable the sleeve 37 to be sleeved on the rotary block 11, the rotary block 11 is of a regular hexagon structure, and a hole site corresponding to the sleeve 37 is formed in the sleeve 37, so that the sleeve 37 is driven to rotate through the second motor 36 to drive the rotary block 11 to synchronously rotate, the clamping rod 9 of the locking assembly is controlled to extend out, automatic high-altitude locking is achieved, and the risk of manual operation is avoided;
When engineering is finished, the upright frame 1 needs to be dismounted, at the moment, the control clamping rod 9 is retracted by the sleeve 37 through reverse operation, unlocking is achieved, then the third telescopic cylinder stretches out, the push plate props against the side wall of the upright frame 1, the push plate is stably pushed away from the tower body interface and is pushed into the bearing seat 19 at the rear side, then the bearing seat 19 is converted into a vertical state from the horizontal state by the overturning assembly, the upright frame 1 is lowered to the ground by the winch 17, no overhead manual operation is needed in the whole process, and safety is improved.
In the embodiment, a fixing clamping strip 38 adapted to the reinforcing bayonet 6 is arranged in the middle of the bearing seat 19, a through hole 39 is formed in the middle of the bottom end of the bearing plate 22, limiting plates 40 are arranged on two sides of the bearing plate 22, a bearing rope 41 is connected between the upper ends of the two sides of the bearing seat 19 and the two sides of the bearing plate 22, and a balancing weight 42 is arranged at the lower end of the bearing seat 19;
when the heightened upright post frame 1 is lifted, when the heightened upright post frame is placed in the bearing seat 19, the reinforcing bayonet 6 is inserted along the fixing clamping strips 38, so that longitudinal accurate positioning and preliminary fixing are realized, and meanwhile, the arrangement of the fixing clamping strips 38 can ensure that the upright post frame 1 cannot deviate during pushing.
When the bearing plate 22 is positioned at the initial position, the bearing rope 41 is in a straight state, and tension constraint is formed by connecting the upper end of the bearing seat 19 and two sides of the bearing plate 22, so that the bearing plate 22 is prevented from sinking or tilting due to the weight of the frame, meanwhile, the load of the driving screw rod 30 is reduced, the balancing weight 42 is used for balancing the bearing seat 19, and the overturning moment generated by the weight of the upright frame 1 is counteracted by the self weight, so that the whole balance during lifting is kept.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (7)
1. The top lifting device of the tower crane and the quick dismounting structure thereof are characterized in that the quick dismounting structure comprises a plurality of upright post frames, the upright post frames are connected in the vertical direction to form an upright post for the lifting device to climb, clamping strips are arranged on the left side and the right side of the top end of the upright post frame, and corresponding clamping interfaces are arranged on the left side and the right side of the bottom end of the upright post frame; the middle parts of the upper end and the lower end of the upright post frame are respectively provided with a reinforcing frame, the top end of the reinforcing frame on the upper side is provided with a reinforcing clamping strip, the bottom end of the reinforcing frame on the lower side is provided with a corresponding reinforcing bayonet, the upper part of the upright post frame is provided with a locking assembly, and the lower part of the upright post frame is provided with a corresponding locking hole; after the adjacent two upright frames are in primary butt joint with the clamping connectors and the reinforcing clamping strips and the reinforcing bayonets through the clamping strips, the locking assemblies can be inserted into locking holes of the upright frames above to realize mechanical interlocking, the left and right sides of the upper part of each upright frame are respectively provided with a locking assembly, each locking assembly comprises a mounting frame, a plurality of clamping rods and two-way screw rods, adjusting cavities are respectively formed in the left and right sides of the upper part of each upright frame, the two-way screw rods are rotationally assembled in the adjusting cavities, rotary blocks are respectively arranged at the front ends of the left and right sides of each upright frame, rotating shafts of the rotary blocks penetrate through and extend to be connected with the corresponding two-way screw rods, the mounting frames are vertically assembled in the adjusting cavities, sliding blocks are respectively connected with the bottom ends of the two-way screw rods in a threaded manner, a plurality of clamping rods are respectively arranged at the top ends of the mounting frames at equal intervals along the length direction, a plurality of holes corresponding to the clamping rods are respectively arranged at the left and right sides of the top ends of each upright frame, the clamping rods can be lifted to the outer sides along the adjusting holes, a plurality of corresponding locking holes are formed in the left side and the right side of the bottom end of the upright post frame;
the top lifting device comprises a lifting mechanism, wherein the lifting mechanism comprises two climbing devices, a first telescopic cylinder and a self-loading and unloading device, the two climbing devices lift along a stand column frame, a plurality of first telescopic cylinders are connected between the two climbing devices, and the self-loading and unloading device is arranged at the top of the upper climbing device;
The self-loading and unloading device comprises a mounting platform, a winch arranged on the upper side of the mounting platform, two winch steel wire ropes and bearing seats, wherein the two winch steel wire ropes and the bearing seats are wound on the two sides of the winch, rollers are arranged on the left side and the right side of the front end of the mounting platform, the tail ends of the winch steel wire ropes on the two sides are respectively hung downwards after passing through the rollers on the corresponding sides and are connected with the two sides of the bearing seats after being elastically bent, an opening matched with an upright column frame is formed in the mounting platform, the mounting platform is arranged on the top end of the upper climbing device through a plurality of support columns, the front side of the top of the upper climbing device is arranged on a turnover assembly, a bearing plate is movably arranged on the bearing seat, the bearing plate is vertically arranged with the bearing seat, a power assembly connected with the bearing plate is arranged on the bearing seat, when the bearing seat ascends to the position of the turnover assembly, the bearing seat is driven to rotate 90 degrees, the power assembly on the bearing seat pushes the movably arranged bearing plate to horizontally move, the upright column frame slides into the uppermost layer to be in a butt joint, a second motor output shaft is arranged on the bearing seat, a second motor output shaft is movably arranged on the bearing seat, a telescopic cylinder is arranged on the tail end of the second motor output shaft is arranged on the bearing seat, and a telescopic cylinder is arranged on the tail end of the piston rod.
2. The top lifting device of the tower crane and the quick dismounting structure thereof according to claim 1, wherein the overturning assembly comprises an overturning seat and second telescopic cylinders arranged on two sides of an upper climbing device, two sides of the front end of the upper climbing device are respectively provided with a support, a rotating rod is rotatably connected between the supports on two sides, two tail ends of the rotating rod are respectively provided with eccentric blocks, piston rods of the second telescopic cylinders on two sides are respectively hinged with the eccentric blocks on the corresponding sides, the overturning seat is arranged on the rotating rod, two sides of the front end of the overturning seat are respectively provided with an inserting rod, corresponding positioning holes are formed in the bearing seat, and when the bearing seat ascends below the overturning seat, the inserting rods are inserted into the positioning holes.
3. The device for lifting the top of a tower crane and the rapid disassembly and assembly structure thereof according to claim 2, wherein the structure of the positioning hole is gradually contracted from top to bottom, and the lower dimension of the positioning hole is matched with the dimension of the inserted link.
4. The top lifting device of the tower crane and the quick dismounting structure thereof according to claim 1, wherein the power assembly comprises a driving screw rod and a sliding rod, sliding openings are respectively formed in the left side and the right side of the bearing seat, the driving screw rod and the sliding rod are respectively arranged in the two side sliding openings, sliding seats are respectively arranged on the sliding openings on the two sides, one sliding seat is in sliding connection with the sliding rod, the other side is in threaded connection with the driving screw rod, the bearing seat is provided with a first motor in transmission connection with the driving screw rod, the top ends of the sliding seats on the two sides are respectively provided with a supporting seat, and the supporting seats are connected with the bearing plate, so that the bearing seat is driven to move through rotation of the driving screw rod.
5. The top lifting device and the quick assembly disassembly structure thereof of the tower crane according to claim 4, wherein the bottom ends of the sliding seats on both sides are respectively provided with a fixed seat, and each fixed seat is provided with the second motor.
6. The top lifting device of the tower crane and the quick dismounting structure thereof according to claim 1, wherein the middle part of the bearing seat is provided with a fixing clamping strip matched with the reinforcing bayonet, the middle part of the bottom end of the bearing plate is provided with a through hole, and both sides of the bearing plate are provided with limiting plates.
7. The top lifting device of the tower crane and the quick dismounting structure thereof according to claim 1, wherein bearing ropes are connected between the upper ends of the two sides of the bearing seat and the two sides of the bearing plate, and a balancing weight is arranged at the lower end of the bearing seat.
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| CN115030473A (en) * | 2022-07-25 | 2022-09-09 | 中建八局第三建设有限公司 | Climbing type construction platform upright column joint adding equipment and use method thereof |
| CN221680579U (en) * | 2024-01-05 | 2024-09-10 | 中建一局集团东南建设有限公司 | A steel structure transfer layer hoisting node adjustment structure |
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| US9297159B2 (en) * | 2013-09-10 | 2016-03-29 | Bruce William Darden | Power lock system for stage truss towers |
| CN211173020U (en) * | 2019-11-14 | 2020-08-04 | 陕西开友实业有限公司 | Attached type automatic lifting operation safety protection platform for building construction |
| CN214217975U (en) * | 2021-01-25 | 2021-09-17 | 北京天罡星机械设备租赁有限公司 | Tower crane structure with increased independent height |
| CN214935531U (en) * | 2021-03-10 | 2021-11-30 | 张家港市亚春机械有限公司 | Quick mounting platform of tower machine climbing cover |
| CN116639602A (en) * | 2023-05-25 | 2023-08-25 | 广州地铁集团有限公司 | A jacking system and a tower crane dismantling method |
| CN119059440B (en) * | 2024-11-05 | 2025-02-28 | 中国建筑第五工程局有限公司 | A tower crane lifting device based on hydraulic control |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030473A (en) * | 2022-07-25 | 2022-09-09 | 中建八局第三建设有限公司 | Climbing type construction platform upright column joint adding equipment and use method thereof |
| CN221680579U (en) * | 2024-01-05 | 2024-09-10 | 中建一局集团东南建设有限公司 | A steel structure transfer layer hoisting node adjustment structure |
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