Usage method of the overall automatic lifting and rotating multi-crane base operation platform

Abstract

The present invention provides a method for using an integral automatic lifting and rotating multi-crane base operation platform. When using the integral automatic lifting and rotating multi-crane base operation platform, during the overall lifting, crane trimming, synchronous lifting adjustment, anti-side support during the lifting process, and rotation hoisting of large components are carried out, which can ensure the balanced force of the operation platform during work, avoid the situation that the platform cannot self-balance in the static state and tilt during the platform hoisting process. Through the pre-interference of the lifting cylinders during lifting, it can ensure the synchronous lifting of the lifting cylinders during the lifting process, and avoid the inclination and shaking of the steel platform system caused by inconsistent lifting heights. At the same time, anti-side support is carried out during the lifting process to improve the stability during the lifting process. During the hoisting process, by carrying out in sections, the use efficiency of the platform is improved and safety and stability are ensured, thereby enhancing the efficiency and safety of the construction of super high-rise building structures.

Description

Technical Field

[0001] The present invention relates to the field of hoisting in construction engineering, and particularly to a method for using an integral automatic lifting and rotating multi-crane base operation platform. Background Art

[0002] Today's super high-rise buildings are mostly designed in the structural form of outer frame steel structure + core tube + outrigger truss. To improve construction efficiency, the weight of steel structure components such as mega-columns, mega-inclined braces, belt trusses, and outrigger trusses usually reaches more than 70 tons after being segmented. To hoist these mega-components, large luffing tower cranes with a maximum hoisting capacity of 100 tons, such as M1280D and ZSL2700, need to be equipped. However, the usage times of these large luffing tower cranes account for about 5% of the total hoisting times. Therefore, the efficiency of the tower cranes is not fully exerted, and the cost expenditure is large. In view of the above situation, the integral automatic lifting and rotating multi-crane base operation platform came into being, integrating the cranes into a steel platform system that can be integrally automatically lifted and rotated 360 degrees. Cranes with three types of lifting weights, large, medium, and small, are configured on the steel platform system, reducing the configuration of large cranes.

[0003] A Chinese patent authorized by the applicant (Publication Date: CN106429885B) discloses an integral automatic lifting and rotating multi-crane base operation platform. The operation platform includes a support lifting system, a steel platform system, a crane system, and a rotation drive system. The rotation drive system includes an upper connecting support of the slewing bearing, a hydraulic motor group, a slewing bearing, and a lower connecting support of the slewing bearing. The hydraulic motor group is connected to the slewing bearing through gear meshing, so that the upper connecting support of the slewing bearing and the slewing bearing rotate relative to each other under the drive of the hydraulic motor group. The lower connecting support of the slewing bearing is installed at the top of the support column, and the upper connecting support of the slewing bearing is installed at the bottom of the steel platform system; the crane system includes one large crane and at least one medium and small crane; the usage steps include: 1. Start the lifting cylinder support frame in the support lifting system; 2. The lifting cylinder retracts to complete the automatic lifting of the operation platform; 3. Start the rotation drive system to realize the rotation of the crane system on the steel platform system; 4. When the steel platform system rotates to a suitable position, turn off the hydraulic motor group; 5. Each crane on the steel platform system starts to hoist components. The operation platform realizes the integral lifting of multiple cranes and the displacement of the cranes on the plane, optimizes the crane configuration in the construction of super high-rise buildings, and reduces the cost of vertical transportation equipment.

[0004] However, as a new construction equipment in the construction industry, the applicant found that when operating the operation platform according to the usage steps in the prior art during the actual use process, there may be an unbalanced force on the operation platform and the steel platform system may tilt, resulting in a huge safety risk when the operation platform hoists large steel components. Summary of the Invention

[0005] The object of the present invention is to provide a method for using an integral automatic lifting and rotating multi-crane base operation platform with balanced force, non-tilting platform and safe and stable hoisting in view of the problems existing in the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: A plurality of cranes are arranged on the operation platform, and the using method includes the following steps: S1: Crane trimming during integral lifting: Analyze the eccentric state of the steel platform system itself, the distance between the crane and the center of the steel platform system, and the self-weight of the crane in the static state, and calculate the orientation and boom angle of each crane under the condition of the minimum eccentric force on the overall steel platform system; S2: Synchronous lifting adjustment: Monitor the inclination of the support columns. First, fine-tune the stroke of the lifting cylinder, and then the automatic leveling system adjusts the stroke of the lifting cylinder to synchronously lift the actual strokes of all lifting cylinders; S3: Anti-side support during lifting: Before lifting, the roller cylinder in the anti-side cylinder extends, the roller abuts against the structural wall, and the self-locking cylinder in the anti-side cylinder retracts; during lifting, the roller of the roller cylinder rolls in contact with the structural wall to achieve anti-side support during lifting; after lifting is completed, the self-locking cylinder extends and abuts against the structural wall, and the roller cylinder retracts; S4: Rotational hoisting of large components: According to the unloading area of the components to be hoisted and the hoisting target position, the driving device of the rotary drive system drives the steel platform system to rotate to a specific angle to hoist the large components. After the large crane on the steel platform system hoists the large components to a certain height, all the cranes on the steel platform system are locked; then the steel platform system is rotated by a certain angle, so that the large components rotate with the large crane to the target orientation, and then the rotary drive system is locked, and the crane is unlocked to hoist the large components to the target position; S5: After completing the hoisting task of one floor, confirm whether to carry out the hoisting of the next floor. If so, repeat the above steps S1 - S4. If not, stop the construction.

[0007] In the above technical solution, when using the integral automatic lifting and rotating multi-crane base operation platform, crane trimming, synchronous lifting adjustment, anti-side support during lifting and rotational hoisting of large components are carried out, which can ensure the balanced force of the operation platform during work, avoid the situation that the platform cannot self-balance in the static state and tilt during the platform hoisting process. Through the pre-interference of the lifting cylinder during lifting, it can ensure the synchronous lifting of the lifting cylinder during lifting, and avoid the steel platform system tilting and shaking due to inconsistent lifting heights; at the same time, anti-side support is carried out during lifting to improve the stability during lifting; during the hoisting process, by carrying out in sections, the use efficiency of the platform is improved and safety and stability are ensured, thereby improving the efficiency and safety of the construction of super-high-rise building structures.

[0008] As a further improvement to the above technical solution, in step S1, calculate the orientations of each crane, the boom angles, and the rotation angle of the steel platform system under the condition of the most uniform force distribution on each support column when the overall steel platform system is under the least eccentric force condition. Observe the changes in the pressure values of each jacking oil cylinder during the jacking process, and correct the previous changes during the next jacking. Through multiple cycles of calculation, observation, and correction, finally obtain the optimal leveling state during jacking. Determine the force exerted by the crane on the platform according to the changes in the oil pressure of the jacking oil cylinder during the jacking process. Through multiple corrections, finally obtain the optimal leveling state during jacking to prepare for synchronous jacking.

[0009] As a further improvement to the above technical solution, in order to eliminate the elevation difference between each jacking oil cylinder caused by the inclination of the support column during jacking, in step S2, use the inclinometers installed on the support columns to monitor the inclination of the support columns in real time. Calculate the actual stroke differences between each jacking oil cylinder according to the inclination conditions, and fine-tune the stroke of the jacking oil cylinder according to the calculated values. Activate the automatic leveling system to adjust the stroke of the jacking oil cylinder so that the actual strokes of all jacking oil cylinders are synchronized, eliminate the stroke difference, and keep the jacking synchronous.

[0010] Specifically, first fine-tune the stroke of the jacking oil cylinder by 1 mm - 3 mm, and then the automatic leveling system adjusts the stroke of the jacking oil cylinder to increase the actual stroke of the jacking oil cylinder so that all jacking oil cylinders jack up synchronously.

[0011] As a further improvement to the above technical solution, in some embodiments, in order to ensure the safety and efficiency of the operating platform during hoisting, in step S4, rotate the steel platform system to a specific angle, and the crane with the maximum lifting capacity on the steel platform system hoists the large component and places it at transfer point one; then the steel platform system rotates a certain angle, and hoists the large component to transfer point two or the target position.

[0012] As a further improvement to the above technical solution, in step S2, use the inclinometers installed on the support columns to monitor the inclination of the support columns.

[0013] As a further improvement to the above technical solution, in order to improve the stability of the operating platform during jacking, in step S3, the anti-side oil cylinders are composed of mechanical self-locking oil cylinders and roller oil cylinders, and the anti-side oil cylinders complete the extension and retraction actions of the oil cylinders through the hydraulic system.

[0014] As a further improvement to the above technical solution, in order to ensure the synchronism and stability of the operating platform during jacking, in step S3, the anti-side oil cylinders are symmetrically and fixedly arranged on both sides of the support column, and at least four anti-side oil cylinders are arranged on the support column.

[0015] As a further improvement to the above technical solution, in step S4, the steel platform system can be driven to rotate as a whole by the hydraulic motor of the slewing drive system, so that the crane can be rotated to any specified angle for hoisting components in different areas.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: when using the overall automatic lifting and slewing multi-crane base operation platform, during the overall lifting, crane trimming, synchronous lifting adjustment, anti-side support during the lifting process, and rotating hoisting of large components can ensure the balanced force of the operation platform during work, avoid the situation that the platform cannot self-balance in the static state and tilt during the platform hoisting process. Through the pre-interference of the lifting cylinders during lifting, it can ensure the synchronous lifting of the lifting cylinders during the lifting process and avoid the steel platform system from tilting and shaking due to inconsistent lifting heights; at the same time, anti-side support is carried out during the lifting process to improve the stability during lifting; during the hoisting process, by carrying out in sections, the use efficiency of the platform is improved and safety and stability are ensured, thereby improving the efficiency and safety of the construction of super-high-rise building structures. Description of the Drawings

[0017] Figure 1 It is a flow chart of the usage method of the overall automatic lifting and slewing multi-crane base operation platform in this embodiment;

[0018] Figure 2 It is an elevation view of the overall automatic lifting and slewing multi-crane base operation platform in this embodiment;

[0019] Figure 3 It is an elevation view of the support and lifting system of the overall automatic lifting and slewing multi-crane base operation platform in this embodiment;

[0020] Figure 4 It is a top view schematic diagram of crane trimming during overall lifting in this embodiment;

[0021] Figure 5 It is a top view and elevation view schematic diagram of crane trimming during overall lifting in this embodiment, where Figure (a) is a schematic diagram of the state before crane trimming; Figure (b) is a schematic diagram of the state after crane trimming;

[0022] Figure 6 It is an elevation view of the anti-side cylinder in this embodiment;

[0023] Figure 7 It is a plan view schematic diagram of rotating hoisting of large components in this embodiment, where Figure (a) is a plan view schematic diagram of rotating hoisting of large components to transfer point 1; Figure (b) is a plan view schematic diagram of rotating hoisting of large components to transfer point 2 or the target position.

[0024] In the figure: 1. Support and jacking system; 2. Rotary drive system; 3. Steel platform system; 4. Crane; 5. Structural wall; 1.1. Wall-climbing load-bearing structure; 1.2. Lower support frame; 1.3. Upper support frame; 1.4. Jacking oil cylinder; 1.5. Lateral load resisting oil cylinder; 1.6. Support column; 4.1. Large crane; 4.2. Medium-sized crane; 4.3. Small crane; 1.5.1. Self-locking oil cylinder; 1.5.2. Oil cylinder with rollers. Detailed implementation mode

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "horizontal", "vertical", etc. are all based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. Embodiment

[0027] As Figure 2-7 shown, the overall automatic jacking and rotary multi-crane base operation platform includes a support and jacking system 1 installed on a structural wall 5, a steel platform system 3 arranged on the top of a support column 1.6 of the support and jacking system 1, and a crane 4 installed on the steel platform system 3. The operation platform further includes a rotary drive system 2 arranged between the support column 1.6 and the steel platform system 3.

[0028] As Figure 2 、 4, as shown in Figures 6 - 7, the crane 4 includes at least one large crane 4.1, one medium-sized crane 4.2 and one small crane 4.2. The support and jacking system 1 includes a wall-climbing load-bearing structure 1.1, a lower support frame 1.2, an upper support frame 1.3, jacking cylinders 1.4, support columns 1.6 and lateral resistance cylinders 1.5. The wall-climbing load-bearing structure 1.1 is fixedly connected to the structural wall 5. The lower support frame 1.2 and the upper support frame 1.3 are respectively arranged at the lower and upper parts of the wall-climbing load-bearing structure 1.1. A plurality of jacking cylinders 1.4 are arranged between the lower support frame 1.2 and the upper support frame 1.3. Through the jacking and retraction of the jacking cylinders 1.4, the overall jacking of the entire support and jacking system 1 is realized. The support columns 1.6 are fixedly installed on the upper support frame 1.3. A pair of lateral resistance cylinders 1.5 are arranged at a certain distance up and down between the support columns 1.6 and the structural wall 5. By respectively arranging the lateral resistance cylinders 1.5 at a certain distance up and down between the support columns 1.6 and the structural wall 5, the overturning force of the crane 4 can be effectively transmitted to the wall, enhancing the stability of the entire platform.

[0029] As Figure 3 shown, the lower support frame 1.2 and the upper support frame 1.3 are respectively arranged at the lower and upper parts of the wall-climbing load-bearing structure 1.1. The jacking cylinders 1.4 are arranged between the lower support frame 1.2 and the upper support frame 1.3. The support columns 1.6 are fixedly installed on the upper support frame 1.3. By extending the jacking cylinders, the support columns, the steel platform system and the crane system are integrally jacked up by one structural layer.

[0030] As Figure 6 shown, the lateral resistance cylinder 1.5 includes a set of mechanically self-locking cylinders 1.5.1 and roller cylinders 1.5.2. The lateral resistance cylinder 1.5 is connected to the hydraulic system of the platform, and the extension and retraction of the cylinder are completed through the hydraulic system. Through the hydraulic system, the extension and retraction of the jacking cylinders are completed.

[0031] As Figure 7 shown, the steel platform system 3 can be integrally rotated by the hydraulic motor of the slewing drive system 2, so that the crane rotates to any specified angle for component hoisting work in different areas.

[0032] This embodiment provides a usage method of an overall automatic jacking and slewing multi-crane base operation platform. There are multiple cranes arranged on the operation platform. As Figure 1 shown, taking the construction of the Nth floor structure by the platform hoisting as an example (N takes integers such as 1, 2, 3, 4, 5, etc.), the usage method of the overall automatic jacking and slewing multi-crane base operation platform includes the following steps:

[0033] The running platform is huge, and there are multiple cranes 4 integrated on the running platform. The types and sizes of the cranes 4 are all different, and the forces exerted by each crane 4 on the supporting and jacking system 1 are uneven. Therefore, during jacking, it is necessary to balance the cranes to make the cranes 4 more stable during jacking and avoid the risk of tipping due to uneven force during jacking.

[0034] Crane balancing during overall jacking: Analyze the eccentricity state of the steel platform system 3 itself, the distance of the crane 4 from the center of the steel platform system 3, and the self-weight of the crane 4 in the static state, and calculate the orientation and boom angle of each crane 4 under the condition of the minimum eccentric force on the overall steel platform system 3.

[0035] Analyze the eccentricity state of the steel platform system 3 itself, the distance of the crane 4 from the center of the steel platform system, and the self-weight of the crane 4 in the static state. Through calculation, obtain the orientation and boom angle of each crane 4 under the condition of the minimum eccentric force on the overall steel platform system, as well as the rotation angle of the steel platform system 3 under the condition of the most uniform force distribution of each supporting column 1.6. By observing the change in the pressure value of each jacking oil cylinder 1.4 during the jacking process, correct the above calculated conditions during the next jacking. After multiple calculations, observations, and corrections, finally obtain the optimal balancing state during jacking. After multiple calculations, observations, and corrections, finally obtain the optimal balancing state during jacking. Determine the force condition of the crane on the platform according to the oil pressure change of the jacking oil cylinder during the jacking process. Through multiple corrections, finally obtain the optimal balancing state during jacking to prepare for synchronous jacking.

[0036] Under normal circumstances, multiple jacking oil cylinders 1.4 are connected to the automatic leveling system, and the jacking height of the jacking oil cylinders 1.4 is adjusted through the automatic leveling system to make the working jacking height of the jacking oil cylinders 1.4 within the specified error range. However, the automatic leveling system has a certain monitoring error for the jacking oil cylinders 1.4. The error at the beginning of the jacking of the jacking oil cylinders 1.4 is less than the monitoring error, and the automatic leveling system cannot identify or monitor the error between the jacking oil cylinders 1.4. But as the jacking height increases, this error will be amplified and finally feedback to the steel platform system 3, and the steel platform system 3 is prone to tilt, resulting in uneven force on the platform and possible tipping danger. Therefore, it is necessary to adjust the jacking oil cylinders 1.4 before the start of jacking to make the heights at the start of jacking consistent.

[0037] During overall jacking, the inclination of the supporting column 1.6 is monitored in real time through the inclinometer set on the supporting column 1.6, and the actual stroke difference between each jacking oil cylinder 1.4 caused thereby is calculated. According to this calculated value, fine-tune the stroke of the jacking oil cylinder 1.4, activate the automatic leveling system, and adjust the stroke of the jacking oil cylinder 1.4 to make the actual strokes of all jacking oil cylinders 1.4 synchronous, eliminate the stroke difference, and keep the jacking synchronous.

[0038] During the jacking process of the jacking cylinder 1.4, the support column 1.6 needs to be kept stable to prevent the crane 4 on the steel platform system 3 from shaking. According to the moment principle, the force received by the shaking of the crane 4 will be amplified when finally transmitted to the steel platform system 3, which may cause the operation platform to tilt and be damaged. Therefore, lateral support needs to be provided during the jacking process.

[0039] Lateral support during the jacking process: Before jacking, the roller cylinder 1.5.2 in the lateral support cylinder 1.5 extends, and the roller abuts against the structural wall 5, while the self-locking cylinder 1.5.1 in the lateral support cylinder 1.5 retracts; during jacking, the roller of the roller cylinder 1.5.2 makes rolling contact with the structural wall 5 to achieve lateral support during the jacking process; after jacking is completed, the self-locking cylinder 1.5.1 extends to abut against the structural wall 5, and the roller cylinder 1.5.2 retracts.

[0040] During the hoisting process of the operation platform, when the hoisted component is a large steel component, factors such as the selection of the crane and the arrangement of the hoisting position are directly related to whether the operation platform can safely hoist the component. Therefore, reasonable planning is required for the hoisting of large components.

[0041] Rotary hoisting of large components: According to the unloading area of the component to be hoisted and the hoisting target position, the driving device of the slewing drive system 2 drives the steel platform system 3 to rotate to a specific angle to hoist the large component. After the large crane 4.1 on the steel platform system hoists the large component to a certain height, all the cranes 4 on the steel platform system 3 are locked; then the steel platform system 3 is rotated by a certain angle, and the large component is rotated to the target orientation along with the large crane 4.1. After that, the slewing drive system 2 is locked, and the crane 4 is unlocked to hoist the large component to the target position.

[0042] After the construction of the Nth floor structure is completed, it is judged whether the construction hoisting of the (N + 1)th floor is required. If not, the construction is stopped. If the construction of the (N + 1)th floor is required, the above steps S1 - S4 are repeated until the construction of the entire structure is finally completed.

[0043] Furthermore, in some embodiments, the stroke of the jacking cylinder is first finely adjusted by 1 mm - 3 mm, and then the automatic leveling system adjusts the stroke of the jacking cylinder to increase the actual stroke of the jacking cylinder, so that all the jacking cylinders jack up synchronously.

[0044] Furthermore, in some embodiments, as Figure 7 shown, the steel platform system is rotated to a specific angle, and the crane with the maximum lifting capacity on the steel platform system hoists the large component and places it at transfer point one; then the steel platform system is rotated by a certain angle, and the large component is hoisted to transfer point two or the target position.

[0045] Furthermore, in some embodiments, the inclination of the support column is monitored by an inclinometer installed on the support column.

[0046] Further, in some embodiments, the anti - lateral oil cylinders 1.5 are a set of mechanical self - locking oil cylinders 1.5.1 and roller - equipped oil cylinders 1.5.2. The anti - lateral oil cylinders 1.5 complete the extension and retraction actions of the oil cylinders through a hydraulic system.

[0047] Further, in some embodiments, the anti - lateral oil cylinders 1.5 are symmetrically and fixedly arranged on both sides of the supporting column, and at least four anti - lateral oil cylinders 1.5 are arranged on the supporting column.

[0048] Further, in some embodiments, the steel platform system 3 can be driven to rotate integrally by the hydraulic motor of the slewing drive system 2, so that the crane rotates to any specified angle to perform component hoisting work in different areas.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for using an integral automatic lifting and rotating multi-crane base operation platform, where multiple cranes are arranged on the operation platform. It is characterized in that the method for using the operation platform includes the following steps: S1: Crane trimming during integral lifting: Analyze the eccentricity state of the steel platform system (3) itself, the distance of the crane (4) from the center of the steel platform system, and the self-weight of the crane (4) in a stationary state, and calculate the orientation and boom angle of each crane (4) under the condition of the minimum eccentric force on the overall steel platform system. S2: Synchronous lifting adjustment: Monitor the inclination of the support columns (1.6), first finely adjust the stroke of the lifting cylinders (1.4), and then the automatic leveling system adjusts the stroke of the lifting cylinders (1.4) to synchronously lift the actual strokes of all lifting cylinders (1.4). S3: Lateral support during lifting: Before lifting, the roller cylinder in the lateral support cylinder (1.5) 1.5.2) Extend, with the rollers against the structural wall (5), and retract the self-locking cylinder (1.5.1) in the anti-side cylinder (1.5); during jacking, the rollers of the roller-equipped cylinder (1.5.2) are in rolling contact with the structural wall (5) to achieve anti-side support during the jacking process; after jacking is completed, extend the self-locking cylinder (1.5.1) to abut against the structural wall (5), and retract the roller-equipped cylinder (1.5.2). S4: Rotational hoisting of large components: According to the unloading area of the components to be hoisted and the hoisting target position, the driving device of the slewing drive system (2) drives the steel platform system (3) to rotate to a specific angle. When hoisting large components, the large crane (4.1) on the steel platform system lifts the large component to a certain height, and then all the cranes (4) on the steel platform system (3) are locked; then rotate the steel platform system (3) by a certain angle, so that the large component rotates to the target orientation with the large crane (4.1), and then lock the slewing drive system (2). Unlock the crane (4) to hoist the large component to the target position. S5: After completing the hoisting task of one floor, confirm whether to perform hoisting on the next floor. If so, repeat the above steps S1 - S4.

2. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 1, characterized in that: In step S1, calculate the orientations of each crane (4) and the boom angles under the condition of the minimum eccentric force on the overall steel platform system and the rotation angle of the steel platform system (3) under the condition of the most uniform force distribution of each support column (1.6). Observe the pressure value changes of each jacking cylinder (1.4) during the jacking process, and correct the previous changes during the next jacking. After multiple calculations, observations, and corrections, finally obtain the optimal leveling state during jacking.

3. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 1, characterized in that: In step S2, real-time monitor the inclination of the support column (1.6), calculate the actual stroke differences between each jacking cylinder (1.4) according to the inclination, fine-tune the stroke of the jacking cylinder (1.4) according to the calculated value, activate the automatic leveling system, and the automatic leveling system adjusts the stroke of the jacking cylinder (1.4) to make the actual strokes of all jacking cylinders (1.4) synchronous, eliminate the stroke difference, and ensure synchronous jacking.

4. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 3, characterized in that: In step S2, first fine-tune the stroke of the jacking cylinder (1.4) by 1 mm - 3 mm, and then the automatic leveling system adjusts the stroke of the jacking cylinder (1.4) to increase the actual stroke of the jacking cylinder (1.4) to make all jacking cylinders (1.4) jack up synchronously.

5. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 1, characterized in that: In step S4, rotate the steel platform system (3) to a specific angle, and the crane with the maximum lifting capacity on the steel platform system (3) hoists the large component and places it at transfer point one; then rotate the steel platform system (3) by a certain angle to hoist the large component to transfer point two or the target position.

6. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 3, characterized in that: In step S2, monitor the inclination of the support column (1.6) through the inclinometer installed on the support column (1.6).

7. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 1, characterized in that: In step S3, the anti-side cylinder (1.5) includes a mechanical self-locking cylinder (1.5.1) and a roller-equipped cylinder ( 1.5.2), and the anti-side cylinder (1.5) completes the cylinder extension and retraction actions through the hydraulic system.

8. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 7, characterized in that: In step S3, the anti-side oil cylinders (1.5) are symmetrically and fixedly arranged on both sides of the supporting columns (1.6), and at least four of the anti-side oil cylinders (1.5) are arranged on the supporting columns (1.6).

9. The usage method of an integral automatic lifting and rotating multi-crane base operation platform according to claim 5, characterized in that: In step S4, the steel platform system (3) can be integrally rotated by the hydraulic motor of the slewing drive system (2), so that the crane rotates to any specified angle to carry out component hoisting work in different areas.

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