A reverse transportation installation method for an external support system

Abstract

The present invention relates to a method for reverse transportation and installation of an external support system, and belongs to the technical field of installation of lifting equipment. The method for reverse transportation and installation of the external support system includes: reverse transportation of the support frame; reverse transportation of the external rack; respectively fixedly connecting the support frame with two pieces of external rack monoliths; respectively fixing the two pieces of external rack monoliths; fine-tuning the external rack so that the wall embedded parts connection joints are respectively aligned with the corresponding wall embedded parts; respectively welding the wall embedded parts connection joints with the corresponding wall embedded parts; adjusting the top block of the support frame to press against the tower body of the crane. The present invention can reverse the external support system used for the internal climbing of the crane to the required position by the crane itself, so as to realize the self-lifting demand of the crane, which is safe, reliable, and easy to install and disassemble; at the same time, the tower crane does not need to use too many standard sections, and the tower crane continues to climb with the improvement of the support system, removing a large amount of the tower body, saving resources, and having strong economy.

Description

Technical Field

[0001] The invention relates to a reverse transportation installation method for an external hanging support system, belonging to the technical field of lifting equipment installation. Background Art

[0002] With the advancement of science and technology and the improvement of construction technology, there are more and more super high-rise large buildings. At present, the super high-rise structure is mostly a "concrete core tube + outer frame steel structure" structure system. The construction sequence is that the vertical structure of the core tube is constructed first, and the outer frame steel structure is constructed first. During construction, cranes are usually used for component hoisting and vertical transportation of materials. Therefore, the use of cranes is indispensable in the process of building industrialization and industrial modernization, and the demand for cranes is also increasing. At the same time, cranes are also increasingly developing in the direction of large-scale, high-speed, and intelligent.

[0003] At present, cranes are inefficient during disassembly and assembly, and usually require auxiliary lifting devices for auxiliary disassembly and assembly, which is extremely inconvenient. In addition, too many standard sections are used during the disassembly and assembly process, resulting in high costs.

[0004] Therefore, how to transport the support system to the required position by the crane itself to achieve the self-lifting requirement of the crane and realize the easy disassembly and assembly of the crane is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The technical problem to be solved by the present invention is to propose a reverse transportation installation method of an external support system which is safe, reliable and easy to install and disassemble, in view of the shortcomings of the prior art.

[0006] The technical solution proposed by the present invention to solve the above technical problems is: a reverse transportation installation method of an external hanging support system, the external hanging support system includes an external hanging frame, a support frame, a first external hanging frame support rod, a second external hanging frame support rod, a first wall embedded part connection joint, a second wall embedded part connection joint and a third wall embedded part connection joint, the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint are fixedly connected with the wall embedded parts in the building wall from top to bottom in sequence, one side of the external hanging frame is connected with the first wall embedded part connection joint through a pin shaft, the lower end of the first external hanging frame support rod is connected with the second wall embedded part connection joint through a pin shaft, the upper end of the first external hanging frame support rod is connected with the lower end of the side of the external hanging frame close to the building wall through a pin shaft, the lower end of the second external hanging frame support rod is connected with the third wall embedded part connection joint through a pin shaft, the upper end of the second external hanging frame support rod is connected with the lower end of the side of the external hanging frame away from the building wall through a pin shaft, and the support frame is fixedly connected with the upper end of the external hanging frame through a connecting bolt and a first shear pin;

[0007] The external rack comprises two symmetrically arranged external rack single pieces, and the two external rack single pieces are fixedly connected by external rack connecting bolts at one side close to each other;

[0008] The support frame comprises two symmetrically arranged support frame monoliths, and the two support frame monoliths are fixedly connected by support frame connecting bolts and a second shear pin on one side close to each other;

[0009] The reverse installation method of the external support system includes the following steps:

[0010] Step 1: Reverse the support frame, specifically:

[0011] Step S11: After the crane hook is installed with a sling, it is lowered to the support frame to be transported, and the sling is connected to two special lifting ears at the upper end of one of the support frames with a shackle;

[0012] Step S12: removing the connecting bolts and the first shear pins between the support frame and the external bracket, and removing the connecting bolts and the second shear pins of the support frame;

[0013] Step S13: slowly lifting the support frame to a predetermined height by means of a crane hook;

[0014] Step S14: hang the support frame on the tower body and release the sling on the upper end of the support frame;

[0015] Step S15: Repeat steps S11 to S14 to hang another support frame on the tower of the crane;

[0016] Step S16: fastening the two support frame monoliths via support frame connecting bolts and second shear pins;

[0017] Step 2: Reverse the external rack, specifically:

[0018] Step S21: fixing the angles between the first pylon support rod and the second pylon support rod and the pylon;

[0019] Step S22: After the crane hook is installed with a sling, it is lowered to the external rack to be transported, the sling is connected to two special lifting ears at the upper end of one of the external rack single pieces with a shackle, and the external rack connecting bolts between the two external rack single pieces are removed;

[0020] Step S23: unloading the external rack single piece, specifically:

[0021] Step S231: cutting off the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint between the external rack single piece to be transported away and the wall embedded part;

[0022] Step S232: lowering the external bracket to the ground by means of a crane hook, removing the original first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint that have been cut, and installing new first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint;

[0023] Step S233: lifting the external rack that has completed the previous step to a predetermined height by means of a crane hook;

[0024] Step S234: After the external rack is pulled close to the tower body of the crane, the middle hanging point on the upper end of the external rack is hung by a hand chain hoist;

[0025] Step S235: Hang the external rack single piece by the electric hoist of the crane;

[0026] Step S236: the crane hook is slowly lowered and the external frame is slowly pulled closer to the crane tower by the hand chain hoist;

[0027] Step S237: remove the shackle connecting the sling and the single piece of the external rack, lift the half piece of the external rack to a predetermined position by the electric hoist of the crane, and fix it by the hand hoist;

[0028] Step S24: repeating steps S22 to S23 to transport another external rack piece of the external rack;

[0029] Step 3: The support frame is fixedly connected to the two external brackets through connecting bolts and first shear pins;

[0030] Step 4: Fix the two external brackets together using external bracket connecting bolts;

[0031] Step 5: fine-tune the external bracket by a hand chain hoist so that the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint are aligned with the corresponding wall embedded parts respectively;

[0032] Step 6: Welding the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint to the corresponding wall embedded parts respectively;

[0033] Step 7: Adjust the top block of the support frame to tighten the tower body of the crane, and the installation of the external support system is completed.

[0034] The improvement of the above technical solution is: Step S14 specifically comprises: after pulling the support frame piece close to the tower body of the crane, the support frame piece is hung on the tower body by two hand winches, and the sling at the upper end of the support frame piece is released.

[0035] The improvement of the above technical solution is: Step S21 is specifically: fixing the first external rack support rod and the second external rack support rod of the external rack to be transported to the lower end of the external rack by a hand winch, thereby fixing the angle between the first external rack support rod and the second external rack support rod and the external rack.

[0036] The improvement of the above technical solution is: step S235 is specifically: the single piece of the external frame is hung by the electric hoist of the crane, and the hanging point of the electric hoist is the lifting eye where the sling is connected by the shackle.

[0037] The beneficial effects of the present invention using the above technical solution are:

[0038] The inverted installation method of the external support system of the present invention can transport the external support system used for internal climbing of the crane to the required position by the crane itself, solving the problem of how the external support system self-shifts during the self-lifting process of the tower crane, thereby realizing the self-lifting requirement of the crane. The inverted installation method of the external support system is safe and reliable, and easy to install and disassemble; at the same time, the tower crane does not need to use too many standard sections. As the support system of the tower crane is improved, the tower crane continues to climb, a large amount of the tower body is removed, resources are saved, and it has strong economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described below in conjunction with the accompanying drawings:

[0040] Figure 1 is a schematic diagram of the general assembly structure of a crane in an embodiment of the present invention;

[0041] Figure 2 It is a partial enlarged structural schematic diagram of the external support system at the bottom of the crane in an embodiment of the present invention;

[0042] Figure 3 is a schematic structural diagram of an external hanger in an external hanger support system in an embodiment of the present invention;

[0043] Figure 4 It is a structural schematic diagram of a support frame in an external support system in an embodiment of the present invention;

[0044] Figure 5 is a schematic diagram of the structure of step S11 in an embodiment of the present invention;

[0045] Figure 6 is a schematic diagram of the structure of step S13 in an embodiment of the present invention;

[0046] Figure 7 It is a structural schematic diagram of hanging a single support frame on a tower body by two hand hoists in step S14 of an embodiment of the present invention;

[0047] Figure 8is a schematic diagram of the structure after the sling at the upper end of the support frame sheet is released in step S14 of the embodiment of the present invention;

[0048] Fig. 9 is a schematic diagram of the structure after step S15 of the embodiment of the present invention is completed;

[0049] Fig.10 is a schematic diagram of the structure of step S21 in an embodiment of the present invention;

[0050] Fig.11 is a schematic diagram of the structure of step S22 in an embodiment of the present invention;

[0051] Fig.12 is a schematic diagram of the structure of step S231 in an embodiment of the present invention;

[0052] Fig.13 is a schematic diagram of the structure of step S233 in an embodiment of the present invention;

[0053] Fig.14 is a schematic diagram of the structure of step S234 in an embodiment of the present invention;

[0054] Fig.15 is a schematic diagram of the structure of step S235 in an embodiment of the present invention;

[0055] Fig.16 is a schematic diagram of the structure of step S236 in an embodiment of the present invention;

[0056] Fig.17 is a schematic diagram of the structure of step S237 in an embodiment of the present invention;

[0057] Fig.18 is a schematic diagram of a top view of the structure of step S237 in an embodiment of the present invention;

[0058] Among them: 1-crane standard section, 2-crane hook, 3-first wall embedded part connection joint, 4-first external bracket support rod, 5-second wall embedded part connection joint, 6-third wall embedded part connection joint, 7-second external bracket support rod, 8-external bracket, 9-support frame, 10-crane lifting section, 11-connecting bolt, 12-first shear pin, 13-external bracket connecting bolt, 14-support frame connecting bolt, 15-second shear pin, 16-hand hoist, 17-electric hoist. DETAILED DESCRIPTION

[0059] Example

[0060] The reverse installation method of the external support system of this embodiment is as follows: Figure 1-18 As shown, the external support system, such as Figure 1-4As shown, it includes an external rack 8, a support frame 9, a first external rack support rod 4, a second external rack support rod 7, a first wall embedded part connection joint 3, a second wall embedded part connection joint 5 and a third wall embedded part connection joint 6, the first wall embedded part connection joint 3, the second wall embedded part connection joint 5 and the third wall embedded part connection joint 6 are fixedly connected to the wall embedded parts in the building wall from top to bottom, one side of the external rack 8 is connected to the first wall embedded part connection joint 3 by a pin, the lower end of the first external rack support rod 4 is connected to the second wall embedded part connection joint 5 by a pin, the upper end of the first external rack support rod 4 is connected to the lower end of the side of the external rack 8 close to the building wall by a pin, the lower end of the second external rack support rod 7 is connected to the third wall embedded part connection joint 6 by a pin, the upper end of the second external rack support rod 7 is connected to the lower end of the side of the external rack 8 away from the building wall by a pin, and the support frame 9 is fixedly connected to the upper end of the external rack 8 by a connecting bolt 11 and a first shear pin 12;

[0061] The external rack 8 includes two symmetrically arranged external rack single pieces, and the two external rack single pieces are fixedly connected by external rack connecting bolts 13 at one side close to each other;

[0062] The support frame 9 includes two symmetrically arranged support frame monoliths, and the two support frame monoliths are fixedly connected to each other by support frame connecting bolts 14 and second shear pins 15 on one side close to each other.

[0063] The reverse transportation installation method of the external support system of this embodiment includes the following steps:

[0064] Step 1: Reverse the support frame 9, specifically:

[0065] Step S11: Figure 5 As shown, the crane hook 2 is installed with a sling and lowered to the support frame 9 to be transported, and the sling is connected to two special lifting ears at the upper end of one of the support frames 9 with a shackle;

[0066] Step S12: dismantle the connecting bolts 11 and the first shear pins 12 between the support frame monolithic plate and the external bracket 8, and dismantle the connecting bolts 14 and the second shear pins 15 of the support frame;

[0067] Step S13: Figure 6 As shown, the support frame is lifted to a predetermined height by slowly lifting the crane hook 2;

[0068] Step S14: Figure 7 and 8 As shown, the support frame is pulled close to the tower body of the crane, and the support frame is hung on the tower body by two hand hoists 16, and the slings on the upper end of the support frame are released;

[0069] Step S15: Fig. 9As shown, repeat steps S11 to S14 to hang another support frame on the tower of the crane;

[0070] Step S16: fastening the two support frame monoliths via the support frame connecting bolts 14 and the second shear pins 15;

[0071] Step 2: Reverse the external rack, specifically:

[0072] Step S21: Fig.10 As shown, the first pylon support rod 4 and the second pylon support rod 4 of the pylon 8 to be transported are fixed to the lower end of the pylon 8 by the hand chain hoist 16, thereby fixing the angle between the first pylon support rod 4 and the second pylon support rod 7 and the pylon 8;

[0073] Step S22: Fig.11 As shown, the crane hook 2 is installed with a sling and lowered to the external rack 8 to be transported, the sling is connected to two special lifting ears at the upper end of one of the external rack single pieces of the external rack 8 with a shackle, and the external rack connecting bolts 13 between the two external rack single pieces are removed;

[0074] Step S23: unloading the external rack single piece, specifically:

[0075] Step S231: Fig.12 As shown, the first wall embedded part connection joint 3, the second wall embedded part connection joint 5 and the third wall embedded part connection joint 6 between the external rack single piece to be transported and the wall embedded part are cut off;

[0076] Step S232: lowering the external bracket to the ground by means of the crane hook 2, removing the original first wall embedded part connection joint 3, the second wall embedded part connection joint 5 and the third wall embedded part connection joint 6 that have been cut, and installing new first wall embedded part connection joint 3, the second wall embedded part connection joint 5 and the third wall embedded part connection joint 6;

[0077] Step S233: Fig.13 As shown, the external rack monolith that has completed the previous step is lifted to a predetermined height by a crane hook 2;

[0078] Step S234: Fig.14 As shown, the external rack is pulled close to the tower of the crane and the middle lifting point on the upper end of the external rack is hung by the hand chain hoist 16;

[0079] Step S235: Fig.15 As shown, the external frame single piece is hung by the electric hoist 17 of the crane, and the hanging point of the electric hoist 17 is the lifting eye where the sling is connected by the shackle;

[0080] Step S236: Fig.16As shown, the crane hook 2 is slowly lowered while the hand chain hoist 16 slowly pulls the external frame piece closer to the crane tower;

[0081] Step S237: Fig.17 and 18 As shown, the shackle connecting the sling and the single piece of the external rack is removed, and the half piece of the external rack is lifted to the predetermined position by the electric hoist 17 of the crane and fixed by the hand hoist 16;

[0082] Step S24: repeating steps S22 to S23 to transport another external rack piece of the external rack;

[0083] Step 3: The support frame 9 is fixedly connected to the two external bracket sheets respectively through the connecting bolts 11 and the first shear pins 12;

[0084] Step 4: Fix the two external racks together by using the external rack connecting bolts 13;

[0085] Step 5: fine-adjust the external bracket 8 by the hand chain hoist 16 so that the first wall embedded part connection joint 3, the second wall embedded part connection joint 5 and the third wall embedded part connection joint 6 are aligned with the corresponding wall embedded parts respectively;

[0086] Step 6: Weld the first wall embedded part connection joint 3, the second wall embedded part connection joint 5 and the third wall embedded part connection joint 6 to the corresponding wall embedded parts respectively;

[0087] Step 7: Adjust the top block of the support frame 9 to press against the tower body of the crane, and the installation of the external support system is completed.

[0088] The reverse transportation installation method of the external support system of the present embodiment can reverse the external support system used for internal climbing of the crane to the required position by the crane itself, which solves the problem of how the external support system self-shifts during the self-jacking process of the tower crane, thereby realizing the self-jacking requirement of the crane. The reverse transportation installation method of the external support system is safe and reliable, and easy to install and disassemble. At the same time, the tower crane does not need to use too many standard sections. As the support system of the tower crane is improved, the tower crane continues to climb, a large amount of the tower body is removed, resources are saved, and it has strong economic efficiency.

[0089] The present invention is not limited to the above embodiments. Any technical solution formed by equivalent replacement falls within the protection scope required by the present invention.

Claims

1. A reverse transportation installation method for an external hanging support system, the external hanging support system comprising an external hanging frame, a support frame, a first external hanging frame support rod, a second external hanging frame support rod, a first wall embedded part connection joint, a second wall embedded part connection joint and a third wall embedded part connection joint, the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint are fixedly connected to the wall embedded parts in the building wall from top to bottom in sequence, one side of the external hanging frame is connected to the first wall embedded part connection joint by a pin shaft, the lower end of the first external hanging frame support rod is connected to the second wall embedded part connection joint by a pin shaft, the upper end of the first external hanging frame support rod is connected to the lower end of the side of the external hanging frame close to the building wall by a pin shaft, the lower end of the second external hanging frame support rod is connected to the third wall embedded part connection joint by a pin shaft, the upper end of the second external hanging frame support rod is connected to the lower end of the side of the external hanging frame away from the building wall by a pin shaft, and the support frame is fixedly connected to the upper end of the external hanging frame by a connecting bolt and a first shear pin; The external rack comprises two symmetrically arranged external rack single pieces, and the two external rack single pieces are fixedly connected by external rack connecting bolts on one side close to each other; The support frame comprises two symmetrically arranged support frame monoliths, and the two support frame monoliths are fixedly connected by support frame connecting bolts and second shear pins on one side close to each other; the feature is: The following steps are involved: Step 1: Reverse the support frame, specifically: Step S11: After the crane hook is installed with a sling, it is lowered to the support frame to be transported, and the sling is connected to two special lifting ears at the upper end of one of the support frames with a shackle; Step S12: removing the connecting bolts and the first shear pins between the support frame and the external bracket, and removing the connecting bolts and the second shear pins of the support frame; Step S13: slowly lifting the support frame to a predetermined height by means of a crane hook; Step S14: hang the support frame on the tower body and release the sling on the upper end of the support frame; Step S15: Repeat steps S11 to S14 to hang another support frame on the tower of the crane; Step S16: fastening the two support frame sheets together through support frame connecting bolts and second shear pins; Step 2: Reverse the external rack, specifically: Step S21: fixing the angles between the first pylon support rod and the second pylon support rod and the pylon; Step S22: After the crane hook is installed with a sling, it is lowered to the external rack to be transported, the sling is connected to two special lifting ears at the upper end of one of the external rack single pieces with a shackle, and the external rack connecting bolts between the two external rack single pieces are removed; Step S23: unloading the external rack single piece, specifically: Step S231: cutting off the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint between the external rack single piece to be transported away and the wall embedded part; Step S232: lowering the external bracket to the ground by means of a crane hook, removing the original first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint that have been cut, and installing new first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint; Step S233: lifting the external rack that has completed the previous step to a predetermined height by means of a crane hook; Step S234: After the external rack is pulled close to the tower body of the crane, the middle hanging point on the upper end of the external rack is hung by a hand chain hoist; Step S235: Hang the external rack single piece by the electric hoist of the crane; Step S236: the crane hook is slowly lowered and the external frame is slowly pulled closer to the crane tower by the hand chain hoist; Step S237: remove the shackle connecting the sling and the single piece of the external rack, lift the half piece of the external rack to a predetermined position by the electric hoist of the crane, and fix it by the hand hoist; Step S24: repeating steps S22 to S23 to transport another external rack piece of the external rack; Step 3: The support frame is fixedly connected to the two external brackets through connecting bolts and first shear pins; Step 4: Fix the two external brackets together using external bracket connecting bolts; Step 5: fine-tune the external bracket by a hand chain hoist so that the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint are aligned with the corresponding wall embedded parts respectively; Step 6: Welding the first wall embedded part connection joint, the second wall embedded part connection joint and the third wall embedded part connection joint to the corresponding wall embedded parts respectively; Step 7: Adjust the top block of the support frame to tighten the tower body of the crane, and the installation of the external support system is completed.

2. The inverted installation method of the external support system according to claim 1 is characterized in that: Step S14 specifically includes: after the support frame is pulled close to the tower body of the crane, the support frame is hung on the tower body by two hand winches, and the slings on the upper end of the support frame are released.

3. The inverted installation method of the external support system according to claim 1 is characterized in that: Step S21 specifically includes: fixing the first pylon support rod and the second pylon support rod of the pylon to be transported to the lower end of the pylon by a hand winch, thereby fixing the angle between the first pylon support rod and the second pylon support rod and the pylon.

4. The inverted installation method of the external support system according to claim 1 is characterized in that: Step S235 is specifically as follows: the external frame single piece is hung by the electric hoist of the crane, and the hanging point of the electric hoist is the lifting eye where the lifting cable is connected by the shackle.

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