Installation and use method of a steel platform tower crane shock absorption device
By setting counterweight blocks and shock-absorbing components on the tower crane platform and utilizing the cooperation of inertia and elastic parts, the vibration problem during the movement of the tower crane is solved, and the stability and safety of the tower crane are improved.
Patent Information
- Application Number
- CN202210656087.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-11
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2042-06-11
AI Technical Summary
The tower crane is damaged due to its static state during movement, resulting in large impact vibration, affecting the structural safety and may even cause the tower crane to break or fall.
A counterweight block and a shock-absorbing assembly are set on the installation platform of the tower crane. Through the inertia of the counterweight block and the cooperation of the elastic parts, reverse sliding and energy absorption are achieved, the lateral swing energy of the tower crane is consumed, and the vibration impact is reduced.
It improves the stability and safety of the tower crane under mobile working conditions, reduces the impact of vibration on the structure, and ensures the safety of the tower crane during movement.
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Figure CN114873492B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of tower cranes, and in particular to a method for installing and using a shock absorbing device for a steel platform tower crane. Background Art
[0002] Tower cranes, also known as tower cranes, are primarily used for vertical and horizontal material transportation and component installation during building construction. They primarily consist of a tower body mounted vertically on the base, a boom rotatably mounted on top of the tower, a hoisting mechanism, a luffing mechanism, a slewing mechanism, a traveling mechanism, and an electrical control system.
[0003] During the construction of super-high-rise buildings, often located in urban core areas, the surrounding construction environment is complex and the site is relatively small. As construction progresses, the location of the storage yard constantly changes, and tower cranes may no longer be able to cover the yard, necessitating the removal and reinstallation of the existing cranes, significantly limiting construction efficiency. Currently, tower crane systems that move on steel platforms are often used to address this problem. By moving the crane on the steel platform, the crane's position can be adjusted to facilitate the transfer of construction materials within the yard.
[0004] The mobile system includes a guide rail fixedly installed on the steel platform and a turntable installed at the bottom of the tower body. The turntable rotates on the guide rail to push the tower body to move. The movement of the tower body drives the turntable to rotate on the guide rail to adjust the position of the tower crane on the steel platform.
[0005] With respect to the above-mentioned related technologies, the inventors discovered that when the tower crane in the related technologies moves, its own static state is destroyed, and large impact vibrations occur, causing the tower crane to shake, affecting the tower crane structure, and even causing the tower crane to break or fall. The existing tower crane system cannot guarantee the safety of the tower crane under mobile conditions. Summary of the Invention
[0006] In order to improve the problem that the safety of a tower crane cannot be guaranteed under mobile working conditions, the present application provides a method for installing and using a shock absorbing device for a steel platform tower crane.
[0007] The present application provides a steel platform tower crane shock absorption device that adopts the following technical solutions:
[0008] A shock-absorbing device for a steel platform tower crane comprises a mounting platform, a slide fixedly mounted on the mounting platform, a counterweight block slidably mounted above the slide, a shock-absorbing assembly for resisting the sliding of the counterweight block, and a fixing assembly for fixing the counterweight block, wherein the fixing assembly and the shock-absorbing assembly are both fixedly connected to the mounting platform.
[0009] By adopting the above technical solution, a counterweight block is set on the installation platform, and the shock-absorbing assembly is used to resist the counterweight block. When the tower crane moves, the fixed assembly and the counterweight block are separated from each other, driving the tower crane to move. The static state of the tower crane itself is destroyed and reciprocating swings are generated. The counterweight block will produce a lagging movement due to its inertia, and make a reverse reciprocating slide on the slide opposite to the swing direction of the tower crane. The reciprocating sliding cycle is consistent with the swing cycle of the tower crane. The shock-absorbing assembly continuously consumes energy to offset the lateral swing of the tower crane, thereby achieving shock absorption and buffering of the tower crane, reducing the influence of the tower crane's own vibration on its own structure during movement, improving the stability of the tower crane system during movement, and improving the problem that the safety of the tower crane cannot be guaranteed under mobile working conditions.
[0010] Optionally, the shock absorbing assembly includes a plurality of vertical poles fixedly mounted on the mounting platform, and elastic members fixedly mounted on side walls of the vertical poles, with ends of the elastic members abutting against side walls of the counterweight block.
[0011] By adopting the above technical solution, when the tower crane moves, the counterweight block remains stationary due to its own inertia, and at the same time squeezes the elastic member on the side away from the direction of movement, causing the elastic member on this side to deform and generate elastic potential energy, pushing the counterweight block to slide in the direction of the tower crane's movement, and absorbing and consuming the kinetic energy of the counterweight block. The coordination of the counterweight block and the elastic member is used to achieve shock absorption and buffering of the tower crane. Multiple elastic members are arranged in parallel on one side and symmetrically on both sides. By symmetrically replacing one pair of them, the stiffness in this direction can be adjusted. By adjusting the stiffness of the counterweight block and the elastic member, the natural frequency of the shock absorbing device can be accurately adjusted to be closer to the frequency of the tower crane.
[0012] Optionally, the fixing assembly includes a cross bar fixedly mounted on any side wall of the vertical pole and a fixing rod fixedly mounted on the end of the cross bar, the ends of two adjacent cross bars are connected to the same fixing rod, and the fixing rod is fixedly connected to the counterweight block.
[0013] By adopting the above technical solution, after the tower crane is transported, during the normal operation of the tower crane, the fixing rod is fixedly connected to the counterweight block to fix the counterweight block and reduce the impact of the counterweight block on the stability during the normal operation of the tower crane.
[0014] Optionally, a slot is provided on the end surface of the counterweight block, a pin is passed through the fixing rod, and the slot is engaged with the pin.
[0015] By adopting the above technical solution, the counterweight is fixed by passing the pin through the fixing rod and into the slot. The pin and the slot cooperate to secure the counterweight to the fixing assembly. The pin is easy to insert and remove, improving the convenience of using the fixing assembly. The self-locking principle of the pin ensures a tight connection of the counterweight fixing assembly. This fixing assembly is easy to use, simple to operate on a tower crane, and has a clear force.
[0016] Optionally, a plurality of limit rods for limiting the displacement limit position of the counterweight block are fixedly mounted on the outer wall of the counterweight block, the height of the bottom end of the limit rod is lower than the height of the upper end surface of the slide, and there is a gap between the limit rod and the slide.
[0017] By adopting the above technical solution, a limit rod is set, and the limit rod and the side wall of the slide are in contact with each other, so as to limit the sliding limit position of the counterweight block on the slide, thereby reducing the risk of separation between the counterweight block and the slide.
[0018] Optionally, the distance between the limiting rod and the counterweight block can be adjusted.
[0019] By adopting the above technical solution, the distance between the limit rod and the counterweight block can be adjusted to achieve the adjustment of the counterweight block's movement limit position, which is convenient for adjusting the counterweight block's movement limit position according to actual working conditions and improves the versatility of the device.
[0020] Optionally, the counterweight block includes a plurality of counterweight monomers and is spliced together by the plurality of counterweight monomers.
[0021] By adopting the above technical solution, by combining multiple counterweight units to form a counterweight block, the overall mass of the counterweight block can be adjusted by adding or reducing the counterweight units. The counterweight units are lighter in mass and smaller in size, making disassembly, assembly and transportation more convenient. The mass of the counterweight block can be adjusted more finely, thereby adjusting the reciprocating sliding frequency of the counterweight block more finely.
[0022] This application provides a method for installing and using a steel platform tower crane shock absorption device, using the following technical solutions:
[0023] A method for installing and using a shock absorbing device for a steel platform tower crane, the shock absorbing device comprising a mounting platform, a slide plate, a counterweight slidably mounted above the slide plate, a shock absorbing assembly for resisting the sliding of the counterweight, and a fixing assembly for fixing the counterweight;
[0024] The shock absorbing assembly includes a plurality of vertical poles fixedly mounted on the mounting platform, and elastic members fixedly mounted on the side walls of the vertical poles, wherein the elastic members are springs, and the ends of the elastic members abut against the side walls of the counterweight block;
[0025] The fixing assembly includes a cross bar fixedly mounted on the side wall of the vertical pole and a fixing rod fixedly mounted on the end of the cross bar, the ends of two adjacent cross bars are connected to the same fixing rod, and the fixing rod can be fixedly connected to the counterweight block;
[0026] The outer wall of the counterweight block is fixedly mounted with a plurality of limit rods for limiting its own displacement limit position;
[0027] The end surface of the counterweight block is provided with a slot, and a pin is passed through the fixing rod, and the slot can be engaged with the pin; the distance between the limiting rod and the counterweight block is adjustable; the counterweight block includes a plurality of counterweight units, and is formed by splicing the plurality of counterweight units;
[0028] The installation and use method includes the following steps:
[0029] S1. Fix the installation platform on the boom of the tower crane, and install the vertical pole and fixing components on the installation platform;
[0030] S2. Install the slide plate on the installation platform;
[0031] S3. Slide and install the counterweight on the slide. The mass of the counterweight should be 3-5% of the tower crane.
[0032] S4. Install the elastic member on the side wall of the vertical pole so that the other end of the elastic member abuts against the side wall of the counterweight block, tension the elastic member, and adjust the stiffness in parallel;
[0033] In the x-direction, all elastic members are in parallel, and the same applies to the y-direction;
[0034]
[0035] Where kx is the stiffness in the x-direction, kxi is the stiffness of the i-th elastic member in the x-direction, ky is the stiffness in the y-direction, and kyi is the stiffness of the i-th elastic member in the y-direction;
[0036] S5. Adjust the distance between the limit rod and the counterweight;
[0037] S6. When moving the tower crane, separate the fixing assembly from the counterweight and move the tower crane horizontally; when the tower crane is working normally, use the fixing assembly to lock the counterweight.
[0038] Optionally, the height of the bottom end of the limiting rod is lower than the height of the upper end surface of the slide, and there is a gap between the limiting rod and the slide.
[0039] By adopting the above technical solution, during the use of the shock absorbing device, the distance between the limit rod and the mounting seat is adjusted according to the actual working conditions, so as to adjust the extreme position of the movement of the counterweight block. Then, the fixed component is separated from the counterweight block, and then the tower crane is moved. The counterweight block slides on the slide, and the vibration frequency of the tower crane is accurately adjusted to improve the impact of the vibration on the tower crane during the movement. Finally, the counterweight block is fixed with the fixed component. During the installation of the shock absorbing device, the installation platform is welded and installed on the tower crane, and then the slide is fixed and installed. Then, the counterweight block is assembled above the slide, and a vertical pole is set on the installation platform. An elastic member with a reasonable elastic coefficient is set on the side wall of the vertical pole, and the end of the elastic member is pressed against the side wall of the counterweight block. Finally, the combined elastic coefficient of multiple elastic members can be adjusted in parallel.
[0040] In summary, this application includes at least one of the following beneficial technical effects:
[0041] 1. By setting a counterweight on the mounting platform and using a shock-absorbing assembly to resist the counterweight, when the tower crane moves, the fixed assembly and the counterweight are separated from each other, driving the tower crane to move. The static state of the tower crane is destroyed and it swings back and forth. The counterweight will lag behind due to its inertia and slide back and forth on the slide in the opposite direction of the tower crane's swing. The reciprocating sliding cycle is consistent with the tower crane's swing cycle. The shock-absorbing assembly continuously consumes energy to offset the lateral swing of the tower crane, achieving shock absorption and buffering of the tower crane. This reduces the impact of the tower crane's own vibration on its own structure during movement, improves the stability of the tower crane system during movement, and improves the problem of the tower crane's safety cannot be guaranteed under mobile working conditions.
[0042] 2. By setting a limit rod, the limit rod abuts against the side wall of the slide to limit the sliding limit position of the counterweight on the slide, reducing the risk of separation between the counterweight and the slide;
[0043] 3. By setting up a shock-absorbing component, when the tower crane moves, the counterweight block remains stationary due to its own inertia, and at the same time squeezes the elastic part on the side away from the direction of movement. The elastic part on this side deforms and generates elastic potential energy, pushing the counterweight block to slide in the direction of the tower crane's movement, and absorbing and consuming the kinetic energy of the counterweight block. The coordination of the counterweight block and the elastic part realizes shock absorption and buffering of the tower crane. Multiple elastic parts are set in parallel on one side and symmetrically on both sides. By symmetrically replacing one pair of them, the stiffness in this direction can be adjusted. By adjusting the stiffness of the counterweight block and the elastic part, the natural frequency of the shock-absorbing device can be accurately adjusted to be closer to the frequency of the tower crane. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.
[0045] Figure 2 It is a schematic diagram of the overall structure of Example 2 of the present application.
[0046] Figure 3 This is the installation process flowchart of Example 3 of the present application.
[0047] Figure 4 It is a schematic diagram of the overall structure of Example 4 of the present application.
[0048] Explanation of the accompanying symbols: 1. Installation platform; 2. Slide plate; 3. Counterweight; 31. Counterweight unit; 4. Shock-absorbing assembly; 41. Vertical pole; 42. Elastic member; 5. Fixed assembly; 51. Cross bar; 52. Fixed rod; 6. Slot; 7. Pin; 8. Limit rod; 9. Tower body; 10. Boom; 11. Shock-absorbing device; S1. Install the installation platform; S2. Install the slide plate; S3. Install the counterweight; S4. Install the elastic member; S5. Adjust the limit rod; S6. Separate the fixed assembly from the counterweight; S7. Move the tower crane; S8. The fixed assembly locks the counterweight. DETAILED DESCRIPTION
[0049] The following is combined with Figure 1-4 This application is described in further detail.
[0050] The embodiments of the present application disclose a steel platform tower crane shock absorbing device, an installation method thereof, and a tower crane.
[0051] Example 1:
[0052] Reference Figure 1 A steel platform tower crane shock absorption device includes a mounting platform 1 welded and mounted on the tower crane, a slide plate 2 fixedly mounted on the mounting platform 1 by bolts, a counterweight block 3 slidably mounted on the slide plate 2, a shock absorption assembly 4 welded and mounted on the tower crane, and a fixing assembly 5 fixed on the shock absorption assembly 4 by bolts, the other end of the shock absorption assembly 4 acts on the counterweight block 3, and the other end of the fixing assembly 5 acts on the upper end surface of the counterweight block 3.
[0053] Mounting platform 1 is a steel plate with its outer wall welded to the crane's main girder. The upper surface of mounting platform 1 is flush with the upper surface of the crane's main girder. Mounting platform 1 facilitates the subsequent installation of slide plate 2 and mounting assembly 5. Slide plate 2 is a polytetrafluoroethylene plate and is bolted to mounting platform 1.
[0054] The counterweight 3 is rectangular in shape and comprises a plurality of counterweight units 31. In the embodiment of the present application, the number of counterweight units 31 is set to 20, arranged in a 2x10 array to form the counterweight 3. By combining multiple counterweight units 31 to form the counterweight 3, the overall mass of the counterweight 3 can be adjusted by adding or removing counterweight units 31. The counterweight units 31 are lightweight and compact, making assembly, disassembly, and transportation more convenient. This allows for relatively fine adjustments to the mass of the counterweight 3, and thus the reciprocating sliding frequency of the counterweight 3.
[0055] A plurality of limit rods 8 are fixedly mounted on the side wall of the counterweight 3 by bolts. In the embodiment of the present application, the number of limit rods 8 is set to 8, and two are in a group, respectively located on the four end faces of the counterweight 3. The height of the bottom end of the limit rod 8 is lower than the height of the upper end face of the slide 2, and there is a gap between the limit rod 8 and the slide 2. The sliding chamber formed between each limit rod 8 is larger than the volume of the slide 2. The limit rod 8 and the side wall of the slide 2 abut against each other to limit the sliding limit position of the counterweight 3 on the slide 2, thereby reducing the risk of separation between the counterweight 3 and the slide 2.
[0056] Multiple shims are placed between the limiting rod 8 and the counterweight unit 31, through which bolts at the ends of the limiting rods pass to connect to the counterweight unit 31. Adjusting the number of shims between the limiting rod 8 and the counterweight unit 31 allows for adjustment of the distance between the limiting rod 8 and the counterweight 3. Adjustment of the limiting rod 8 allows for adjustment of the counterweight 3's ultimate position, facilitating adjustment based on actual operating conditions and enhancing the device's versatility.
[0057] The shock-absorbing assembly 4 comprises a plurality of uprights 41 welded to the mounting platform 1, and elastic members 42 welded to the sidewalls of the uprights 41. In this embodiment, there are twelve uprights 41 and elastic members 42, with three uprights 41 located in groups of four along the four sidewalls, with the three uprights 41 aligned. The elastic members 42 are springs, the other ends of which abut against the outer wall of the counterweight 3.
[0058] When the tower crane moves, the counterweight 3 remains stationary due to its own inertia, and at the same time, it squeezes the elastic member 42 on the side away from the direction of movement. The elastic member 42 on this side deforms and generates elastic potential energy, pushing the counterweight 3 to slide in the direction of the tower crane movement and absorbing and consuming the kinetic energy of the counterweight 3. The coordination of the counterweight 3 and the elastic member 42 is used to achieve shock absorption and buffering of the tower crane. Multiple elastic members 42 are arranged in parallel on one side and symmetrically on both sides. By symmetrically replacing one pair of them, the stiffness in this direction can be adjusted. By adjusting the stiffness of the counterweight 3 and the elastic member 42, the natural frequency of the shock absorbing device 11 can be accurately adjusted to be closer to the tower crane frequency.
[0059] The fixing assembly 5 includes a crossbar 51 bolted to the side wall of the vertical pole 41 near the end, and a fixing rod 52 bolted to the end of the crossbar 51. In this application, the number of crossbars 51 is set to 8, and they are respectively located on the vertical pole 41 near the corners of the counterweight block 3. The crossbars 51 near the corners of the counterweight block 3 are arranged perpendicular to each other, and the two crossbars 51 are connected to the same fixing rod 52. A pin 7 is inserted into the fixing rod 52, and a slot 6 is formed on the end surface of the counterweight block 3. The pin 7 passes through the fixing rod 52 and can be engaged with the slot 6.
[0060] The fixing assembly 5 is used to secure the counterweight 3 during normal operation of the tower crane, reducing its impact on the crane's stability during normal operation. When the tower crane is moving, the pin 7 is separated from the slot 6, and the counterweight 3 cooperates with the shock-absorbing assembly 4 to achieve shock absorption and buffering for the tower crane. This reduces the impact of the crane's own vibration on its own structure during movement, improves the stability of the tower crane system during movement, and improves the problem of the tower crane's safety being unable to be guaranteed during movement.
[0061] The implementation principle of Example 1 is as follows: by installing a slide plate 2 on the mounting platform 1 and placing a counterweight block 3 above the slide plate 2, the counterweight block 3 and the shock-absorbing assembly 4 cooperate to achieve shock absorption and buffering of the tower crane. This reduces the impact of the tower crane's own vibration on its own structure during movement, improves the stability of the tower crane system during movement, and improves the problem of the tower crane's safety being unable to be guaranteed during movement. The fixing assembly 5 fixes and supports the counterweight block 3 when the tower crane is operating normally, reducing its impact on the normal operation of the tower crane.
[0062] Example 2:
[0063] The difference between the embodiment of the present application and embodiment 1 is that the installation position of the installation platform 1 is different.
[0064] Reference Figure 2 The mounting platform 1 is welded to the lower end of the tower crane main beam, and the bottom surface of the mounting platform 1 is flush with the lower end of the main beam. A mounting groove is formed between the mounting platform 1 and the inner side wall of the main beam, and the shock absorber 11 is installed in the mounting groove by bolts.
[0065] The implementation principle of Example 2 is that by setting the shock-absorbing device 11 in the installation groove, the drive motor and other drive systems of the tower crane can continue to be installed above the main beam without interfering with the installation of other structures of the tower crane, thereby ensuring the normal installation of other actuators and electrical control systems of the tower crane.
[0066] Example 3:
[0067] A method for installing a shock-absorbing device for a steel platform tower crane, referring to Figure 3 , including the following steps:
[0068] S1: Setting up the installation platform 1, welding and installing the installation platform 1 on the main beam of the tower crane, for placing the slide plate 2, the counterweight block 3, and installing the fixing component 5 and the shock absorbing component 4;
[0069] S2: Use bolts to fix the slide plate 2 on the mounting platform 1 to provide damping for the shock absorption system;
[0070] S3: Assemble the counterweight 3 above the slide 2. The overall mass of the counterweight 3 composed of the counterweight monomer 31 is 3%-5% of the tower crane. In the embodiment of the present application, the mass of the counterweight 3 is 4% of the tower crane mass.
[0071] S4: Weld and install an elastic member 42 on the side wall of any vertical pole 41, and make the other end of the elastic member 42 abut against the side wall of the counterweight 3 to tension the elastic member 42, and adjust the stacking strength of the elastic member 42 in parallel;
[0072] The calculation method of the superimposed elastic coefficient of the elastic members 42 is as follows: for the x-direction, all elastic members 42 are in parallel form, and the same applies to the y-direction;
[0073]
[0074] Wherein, kx is the stiffness in the x-direction, kxi is the stiffness of the i-th elastic member 42 in the x-direction, ky is the stiffness in the y-direction, and kyi is the stiffness of the i-th elastic member 42 in the y-direction.
[0075] S5: Adjust the distance between the limit rod 8 and the counterweight 3 by adding a gasket to adjust the limit rod 8 to a suitable position;
[0076] S6: When moving the tower crane, separate the fixing assembly 5 from the counterweight 3 and move the tower crane laterally; when the tower crane completes the normal movement, use the fixing assembly 5 to fix and lock the counterweight 3.
[0077] The implementation principle of Example 3 is as follows: during the installation of the shock-absorbing device 11, the installation platform 1 is welded and installed on the tower crane, and then the slide 2 is fixedly installed. Thereafter, the counterweight 3 is assembled above the slide 2, and a vertical pole 41 is set on the installation platform 1. An elastic member 42 with a reasonable elastic coefficient is set on the side wall of the vertical pole 41, and the end of the elastic member 42 is pressed against the side wall of the counterweight 3. Finally, the combined elastic coefficient of multiple elastic members 42 can be adjusted in parallel.
[0078] When moving the tower crane, first adjust the distance between the limit rod 8 and the counterweight 3 by adding a pad to facilitate the adjustment of the extreme position of the movement of the counterweight 3. Then separate the fixing component 5 from the counterweight 3, and then move the tower crane. During this process, the counterweight 3 slides above the slide 2. After the movement is completed, the fixing component 5 will re-fix the counterweight 3 to reduce the impact of the displacement of the counterweight 3 on the normal lifting of the tower crane.
[0079] Example 4:
[0080] This application also discloses a tower crane, referring to Figure 4 , including a tower body 9, a movable arm 10 rotatably installed on the top of the tower body 9, and a shock absorbing device 11 welded and installed on the movable arm 10.
[0081] The implementation principle of Example 4 is: by installing the shock absorbing device 11 on the tower crane, the tower crane installed with the device has good shock resistance, and the tower crane has good safety during movement.
[0082] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A method for installing and using a steel platform tower crane shock absorption device, characterized in that: The steel platform tower crane shock absorbing device comprises a mounting platform (1), a slide plate (2), a counterweight (3) slidably mounted above the slide plate (2), a shock absorbing assembly (4) for resisting the sliding of the counterweight (3), and a fixing assembly (5) for fixing the counterweight (3); The shock absorbing assembly (4) comprises a plurality of vertical poles (41) fixedly mounted on the mounting platform (1), and elastic members (42) fixedly mounted on the side walls of the vertical poles (41), wherein the elastic members (42) are springs, and the ends of the elastic members (42) abut against the side walls of the counterweight (3); The fixing assembly (5) comprises a cross bar (51) fixedly mounted on the side wall of the vertical bar (41) and a fixing rod (52) fixedly mounted on the end of the cross bar (51), the ends of two adjacent cross bars (51) are connected to the same fixing rod (52), and the fixing rod (52) can be fixedly connected to the counterweight (3); The outer wall of the counterweight block (3) is fixedly mounted with a plurality of limit rods (8) for limiting its own displacement limit position; a clamping groove (6) is provided on the end surface of the counterweight block (3); a pin shaft (7) is passed through the fixing rod (52); the clamping groove (6) can be engaged with the pin shaft (7); the distance between the limit rod (8) and the counterweight block (3) can be adjusted; the counterweight block (3) includes a plurality of counterweight monomers (31) and is formed by splicing a plurality of the counterweight monomers (31); The installation and use method includes the following steps: S1. Fixing a mounting platform (1) on the boom of a tower crane, and installing a vertical pole (41) and a fixing assembly (5) on the mounting platform (1); S2, installing the slide plate (2) on the installation platform (1); S3. Slidingly install a counterweight (3) on the slide plate (2). The mass of the counterweight (3) is 3-5% of the tower crane; S4, installing the elastic member (42), installing the elastic member (42) on the side wall of the vertical pole (41), making the other end of the elastic member (42) abut against the side wall of the counterweight (3), tensioning the elastic member (42), and adjusting the stiffness in a parallel manner; In the x-direction, all elastic members (42) are connected in parallel, and the same is true for the y-direction; Wherein, kx is the stiffness in the x-direction, kxi is the stiffness of the i-th elastic member (42) in the x-direction, ky is the stiffness in the y-direction, and kyi is the stiffness of the i-th elastic member (42) in the y-direction; S5. Adjust the distance between the limit rod (8) and the counterweight (3); S6. When moving the tower crane, separate the fixing assembly (5) from the counterweight (3) and move the tower crane laterally; when the tower crane is operating normally, use the fixing assembly (5) to fix and lock the counterweight (3).
2. The method for installing and using a steel platform tower crane shock absorption device according to claim 1, characterized in that: The height of the bottom end of the limiting rod (8) is lower than the height of the upper end surface of the slide plate (2), and a gap exists between the limiting rod (8) and the slide plate (2).
Citation Information
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