Demolition device and demolition method for a bent cap construction platform

Abstract

The present invention discloses a dismantling device and a dismantling method for a cap beam construction platform. The dismantling device is used to dismantle the cap beam construction platform as a whole, which can greatly improve work efficiency, save labor costs, and is safe and reliable. The dismantling device has the functions of clamping the cap beam and slowly and steadily lowering the cap beam construction platform to the ground. It can be used to dismantle the cap beam construction platform. It has a stable structure and high reliability, and is extremely convenient when used for dismantling. Through a mechanized construction method, the cap beam construction platform is dismantled as a whole. During the dismantling process, it is only necessary to remotely control the dismantling device to avoid high-altitude operations for construction personnel. The entire cap beam disassembly process is mechanized, avoiding the problem of a large number of construction personnel participating in the past, greatly improving efficiency and reducing risk losses. In addition, on the one hand, a three-dimensional posture sensor is provided to monitor the hoisting posture of the construction platform, and on the other hand, a rope length sensor is provided. The two together ensure the balance of the construction platform.

Description

Technical Field

[0001] The present invention relates to the technical field of dismantling a cap beam construction platform, and in particular to a dismantling device and a dismantling method for a cap beam construction platform. Background Art

[0002] The cap beam refers to the beam installed on top of the frame pile pier to support, distribute and transfer the load of the superstructure. Its main function is to support the superstructure of the bridge and transfer all the loads to the substructure. The cap beam is an important component of the bridge structure. The construction process usually includes setting up the support system, tying steel bars, erecting formwork, pouring, removing the formwork, and dismantling the support system. The cap beam is mainly constructed using cast-in-place technology. The support system is composed of steel hoops (or steel bars), supporting longitudinal beams, transverse distribution beams, bottom formwork, and construction platform from bottom to top.

[0003] The columnar piers beneath the cap beam are typically quite high, sometimes reaching as high as 30-50 meters. Dismantling the construction platform involves high-altitude work, which is quite dangerous. Furthermore, transporting dismantled components to the ground using a hoist is inefficient and costly. Currently, there is no dedicated dismantling equipment for cap beam construction platforms, making their removal inconvenient. Currently, the dismantling process for bridge cap beam construction platforms is mostly manual, performed step by step using a hoist. This operation requires workers to work at height for extended periods, making it time-consuming and labor-intensive. This not only reduces construction efficiency but also increases the risk of falling from height. In recent years, there have been numerous fatalities from falls during the removal of cap beam supports. For some heavy cap beam support components, the cap beam bracket must be directly removed using a crane. However, when using a crane to remove these components, the I-beams attached to the cap beam bracket can easily swing and become unstable, potentially colliding with the pier columns. This poses a significant safety hazard, especially on high-rise elevated bridges. Summary of the Invention

[0004] In view of this, the present invention proposes, on the one hand, a device for dismantling a cap beam construction platform, and on the other hand, a method for dismantling a cap beam construction platform, which can solve one of the above problems to at least a certain extent.

[0005] The technical solution of one aspect of the present invention is achieved as follows:

[0006] A dismantling device for a cap beam construction platform, comprising:

[0007] frame;

[0008] At least two sets of lifting mechanisms, each of which includes a hoist, a steel wire rope, and a hook connected to the steel wire rope;

[0009] The clamping mechanism is arranged on the frame, and the clamping mechanism includes two clamps respectively located on both sides of the cap beam to clamp the cap beam.

[0010] As a further optional solution for the dismantling device, one end of the wire rope is wound and connected to the winch, and the other end is fixed; the hook is connected to a movable pulley, and the movable pulley is hung on the wire rope; the lifting mechanism also includes a support frame arranged on the frame, and the support frame is provided with a first fixed pulley and a second fixed pulley; the wire rope passes around the first fixed pulley, the movable pulley and the second fixed pulley in sequence.

[0011] As a further optional solution of the dismantling device, the two clamps of the clamping mechanism are driven to move by two clamping cylinders respectively.

[0012] As a further optional solution of the dismantling device, one end of the steel wire rope is fixedly connected to a fixed oil cylinder; the piston rod of the fixed oil cylinder is located in the front chamber thereof, and a first spring is provided in the front chamber of the fixed oil cylinder to drive the front chamber to expand; when the steel wire rope is under load, the steel wire rope pulls the piston rod of the fixed oil cylinder so that the front chamber of the fixed oil cylinder tends to be compressed;

[0013] The piston rod of the clamping oil cylinder is located in the front cavity thereof, and a second spring is provided in the rear cavity of the clamping oil cylinder to drive the rear cavity to expand; when the front cavity of the clamping oil cylinder expands, the piston rod of the clamping oil cylinder drives the clamp to clamp the cap beam;

[0014] There are two groups of supporting mechanisms, which are symmetrically arranged; the front cavity of the fixed oil cylinder located on one side of the cap beam is connected to the front cavity of the clamping oil cylinder located on the other side of the cap beam through an oil pipe, and the oil pipe is connected to the oil replenishing cup, and the oil replenishing cup is controlled to close / open by the oil replenishing solenoid valve.

[0015] As a further optional solution of the demolition device, the demolition device also includes a balance adjustment device, which includes a three-dimensional posture sensor arranged on the construction platform and a retracted rope length sensor for detecting the retracted length of the wire rope.

[0016] As a further optional solution of the dismantling device, the clamping mechanism further includes a pressure sensor for detecting the clamping force of the clamp.

[0017] As a further optional solution for the dismantling device, a control drive module is provided on the frame, and the control drive module is respectively connected to the winch, balance adjustment device, pressure sensor and oil supply solenoid valve; the control drive module is also connected to the control unit signal; the control unit is a touch screen, and the touch screen is used to input instructions and display parameters.

[0018] The benefits of this dismantling device include significantly improving work efficiency and saving labor costs by dismantling the entire cap beam construction platform. It is also safe and reliable. The dismantling device clamps the cap beam and slowly and steadily lowers the cap beam construction platform to the ground. It is suitable for dismantling cap beam construction platforms, boasting a stable and reliable structure and providing significant convenience during dismantling.

[0019] The technical solution of another aspect of the present invention is achieved as follows:

[0020] A method for dismantling a cap beam construction platform, using the above-mentioned dismantling device to dismantle the construction platform, specifically comprising the following steps:

[0021] Lifting the dismantling device and placing it on the cap beam, and selecting the number of the dismantling devices and the installation position on the cap beam according to the length of the cap beam;

[0022] Clamping the cap beam using the clamping mechanism to fix the frame on the cap beam;

[0023] Calibrate the posture balance of the construction platform when it is lifted;

[0024] Lower the construction platform as a whole and dismantle the lowered construction platform.

[0025] As a further optional solution of the dismantling method, the following steps are more specifically included:

[0026] Initially, the oil replenishing solenoid valve is in an open state, and the hook is placed on the frame so that the hook is in a non-suspended state, so that the hook does not generate a load on the piston rod of the fixed oil cylinder;

[0027] Close the oil supply solenoid valve and place the hook in a free-hanging suspended state;

[0028] The hook generates pressure in the front chamber of the fixed oil cylinder, which is transmitted to the front chamber of the clamping oil cylinder on the other side through the oil pipe, so that the clamping oil cylinder drives the clamp to clamp the cap beam;

[0029] The pressure sensor is used to detect whether the clamping force reaches a preset value. If the clamping force is sufficient, the operation continues; if the clamping force is insufficient, a fault is reported and the machine is shut down.

[0030] As a further optional solution of the dismantling method, the following steps are more specifically included:

[0031] Starting the winch to pre-lift the construction platform;

[0032] The length of the wire rope of each winch is detected by the length sensor of each winch to ensure that the error of the length of the wire rope of each winch is controlled within a certain range.

[0033] If the retraction and extension lengths of the wire ropes of each winch are within the error range, but the posture parameters of the construction platform during the lifting process deviate too much from the posture parameters when balanced, then adjust the setting position of the dismantling device on the cap beam or increase the number of the dismantling devices.

[0034] The beneficial effects of this demolition method include: through a mechanized construction method, the cap beam construction platform is dismantled as a whole. During the demolition process, only the demolition device needs to be remotely controlled, avoiding the construction workers from working at height. The cap beam disassembly process is entirely mechanized, avoiding the problem of a large number of construction workers involved in the past, greatly improving efficiency and reducing risk losses. The clamping mechanism does not require external power and can use the pressure generated by the hoisting weight to generate a clamping force. Through balance control, the construction frame is kept balanced during the hoisting and lowering process; and, on the one hand, a three-dimensional posture sensor is set to monitor the hoisting posture of the construction platform, and on the other hand, a rope length sensor is set, both of which together ensure the balance of the construction platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 It is a schematic diagram of the main view of a dismantling device for a cap beam construction platform;

[0037] Figure 2 It is a side view schematic diagram of a dismantling device for a cap beam construction platform;

[0038] Figure 3 Schematic diagram of the oil circuit connection between the fixed oil cylinder and the clamping oil cylinder;

[0039] Figure 4 This is a control principle diagram of a dismantling device for a cap beam construction platform.

[0040] In the figure: 100, cap beam; 200, construction platform;

[0041] 1. Frame;

[0042] 2. Lifting mechanism; 21. Winch; 22. Wire rope; 23. Hook; 24. Movable pulley; 25. Support frame; 26. First fixed pulley; 27. Second fixed pulley; 28. Fixed cylinder;

[0043] 3. Clamping mechanism; 31. Clamp; 32. Clamping cylinder; 33. Guide rod; 34. Slider; 35. Oil pipe; 36. Oil supply cup; 37. Oil supply solenoid valve;

[0044] 4. Retractable rope length sensor;

[0045] 5. Three-dimensional attitude sensor. DETAILED DESCRIPTION

[0046] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are 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 cannot be understood as a limitation on the present invention.

[0048] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] refer to Figure 1-4 , shows a dismantling device for a cap beam construction platform, including a frame 1, at least two sets of supporting mechanisms 2, and a clamping mechanism 3; the supporting mechanism 2 includes a winch 21, a steel wire rope 22 and a hook 23 connected to the steel wire rope 22; the clamping mechanism 3 is arranged on the frame 1, and the clamping mechanism 3 includes two clamps 31 respectively located on both sides of the cap beam 100 to clamp the cap beam 100.

[0050] In simple terms, the clamping mechanism 3 is used to fix the frame 1 on the cap beam 100, and the supporting mechanism 2 is used to hoist the construction platform 200 so that the construction platform 200 can be lowered as a whole, thereby facilitating the dismantling of the construction platform 200. Using a dismantling device to dismantle the cap beam 100 and the construction platform 200 as a whole can greatly improve work efficiency, save labor costs, and be safe and reliable. The dismantling device has the function of clamping the cap beam 100 and slowly and steadily lowering the construction platform 200 of the cap beam 100 to the ground. It can be used to dismantle the construction platform 200 of the cap beam 100. It has a stable structure, high reliability, and is extremely convenient when used for dismantling.

[0051] For details of the above scheme, please refer to Figure 1 and Figure 2 One end of the steel wire rope 22 is wound around and connected to the hoist 21, and the other end is fixed. The hook 23 is connected to a movable pulley 24, and the movable pulley 24 is hung on the steel wire rope 22. This can reduce the load on the hoist 21, prevent the hoist 21 from being overloaded, and improve the stability of the hoist 21 during operation. In addition, to facilitate hanging the movable pulley 24 on the steel wire rope 22, the supporting mechanism 2 also includes a support frame 25 provided on the frame 1, and a first fixed pulley 26 and a second fixed pulley 27 are provided on the support frame 25. The steel wire rope 22 is passed around the first fixed pulley 26, the movable pulley 24, and the second fixed pulley 27 in sequence.

[0052] Specifically, the two clamps 31 can be driven and moved by two clamping cylinders 32 respectively, and the two clamping cylinders 32 provide clamping force for the clamps 31, thereby fixing the frame 1 on the cap beam 100. In order to facilitate the clamps to stably move away from / close to the cap beam 100, the clamping mechanism 3 also includes a guide rod 33 provided on the frame, and a slider 34 is slidably connected to the guide rod 33, and the slider 34 is fixedly connected to the clamps.

[0053] In some specific embodiments, reference Figure 1 and Figure 3One end of the steel wire rope 22 is fixedly connected to a fixed oil cylinder 28; the piston rod of the fixed oil cylinder 28 is located in the front cavity inside the fixed oil cylinder 28, and the front cavity of the fixed oil cylinder 28 is provided with a first spring (not marked in the figure) that drives the front cavity to expand; when the steel wire rope 22 is under load, the steel wire rope 22 pulls the piston rod of the fixed oil cylinder 28 so that the front cavity of the fixed oil cylinder 28 tends to be compressed; the piston rod of the clamping oil cylinder 32 is located in the front cavity inside the clamping oil cylinder 32, and the rear cavity of the clamping oil cylinder 32 is provided with a first spring that drives the front cavity to expand. A second spring (not marked in the figure) is used to enlarge its rear cavity; when the front cavity of the clamping cylinder 32 is enlarged, the piston rod of the clamping cylinder 32 drives the clamp 31 to clamp the cap beam 100; the lifting mechanism 2 has two groups and is symmetrically arranged; the front cavity of the fixed cylinder 28 located on one side of the cap beam 100 is connected to the front cavity of the clamping cylinder 32 located on the other side of the cap beam 100 through an oil pipe 35, and the oil pipe 35 is connected to the oil replenishing cup 36, and the oil replenishing cup 36 is controlled to be closed / opened by the oil replenishing solenoid valve 37.

[0054] Specifically, when the wire rope 22 is unloaded, the first spring drives the front cavity of the fixed oil cylinder 28 to expand, and the second spring drives the front cavity of the clamping oil cylinder 32 to shrink, so that the distance between the two clamps 31 is far enough to allow the demolition device to be mounted on the cap beam 100; when the wire rope 22 is loaded, the wire rope 22 generates a load on the piston rod of the fixed oil cylinder 28, causing the front cavity of the fixed oil cylinder 28 to shrink, and the oil in the front cavity of the fixed oil cylinder 28 passes through the oil pipe 35 enters the front cavity of the clamping cylinder 32, causing the front cavity of the clamping cylinder 32 to expand, which is equivalent to transmitting the pressure generated in the front cavity of the fixed cylinder 28 to the front cavity of the clamping cylinder 32 on the other side through the oil pipe 35, so that the clamping cylinder 32 drives the clamp 31 to clamp the cap beam 100; in this way, the greater the load of the wire rope 22, the greater the clamping force of the clamp 31 on the cap beam 100, so that the clamping mechanism 3 does not require external power, and can use the pressure generated by the lifting weight to generate clamping force.

[0055] More specifically, refer to Figure 3 The pressure generated by the front chamber of the fixed oil cylinder 28 is The clamping force generated by the clamping oil cylinder 32 is F=P(Db 2 -db 2 )π / 4; where: load is the load of the wire rope 22; Da and da are the cylinder diameter and piston rod diameter of the fixed cylinder 28, respectively; Db and db are the cylinder diameter and piston rod diameter of the clamping cylinder 32, respectively; by selecting appropriate Da, da, Db, and db, a suitable clamping force can be obtained.

[0056] For details of the above scheme, please refer to Figure 1The clamping mechanism 3 further includes a pressure sensor for detecting the clamping force of the clamp 31 .

[0057] Specifically, in order to facilitate the stable and slow lowering of the construction platform 200, the dismantling device also includes a balance adjustment device, which includes a three-dimensional posture sensor 5 set on the construction platform 200 and a retractable rope length sensor 4 for detecting the retracted length of the wire rope 22. In this way, on the one hand, the three-dimensional posture sensor 5 is set to monitor the hoisting posture of the construction platform 200, and on the other hand, the retractable rope length sensor 4 is set, and the two together ensure the balance of the construction frame. Figure 4 In order to facilitate control, a control drive module is provided on the frame 1, and the control drive module can be a single-chip control drive module; the control drive module is respectively connected to the winch 21, the balance adjustment device, the pressure sensor and the oil supply solenoid valve 37; the control drive module is also connected to the control unit signal; the control unit is a touch screen, and the touch screen is used to input instructions and display parameters. In this way, the operation of the demolition device can be remotely controlled through the touch screen. During the demolition process, the demolition device only needs to be remotely controlled to avoid high-altitude operations of construction workers. The dismantling process of the cap beam 100 is fully mechanized, avoiding the problem of a large number of construction workers involved in the past, greatly improving efficiency and reducing risk losses.

[0058] A method for dismantling a cap beam construction platform, using the above-mentioned dismantling device to dismantle the construction platform 200, specifically includes the following steps:

[0059] Use a crane to lift the dismantling device and place it on the cap beam 100 , and select the number of the dismantling devices and the installation position on the cap beam 100 according to the length of the cap beam 100 ;

[0060] The cap beam 100 is clamped by the clamping mechanism 3 to fix the frame 1 on the cap beam 100;

[0061] Calibrate the posture balance of the construction platform 200 when it is lifted;

[0062] Lower the construction platform 200 as a whole and dismantle the lowered construction platform 200; then use a crane to lift the dismantling device from the cap beam 100; it should be noted that since the size of the dismantling device is smaller than that of the construction platform 200 and the connection between the dismantling device and the cap beam 100 is simple, there will be no shaking or instability during the lifting process, and there will be no risk of touching the pier.

[0063] Specifically, the above-mentioned dismantling method is that the oil-supplying solenoid valve 37 is initially in an open state, and the hook 23 is placed on the frame 1 so that the hook 23 is in a non-suspended state, so that the hook 23 does not generate a load on the piston rod of the fixed oil cylinder 28; the first spring drives the front cavity of the fixed oil cylinder 28 to increase, and the second spring drives the front cavity of the clamping oil cylinder 32 to shrink, so that the distance between the two clamps 31 is far enough to allow the dismantling device to be mounted on the cap beam 100; then the oil-supplying solenoid valve 37 is closed, and the hook 23 is placed in a freely suspended suspended state; the wire rope 22 has The steel wire rope 22 generates a load on the piston rod of the fixed oil cylinder 28, causing the front cavity of the fixed oil cylinder 28 to shrink, and the oil in the front cavity of the fixed oil cylinder 28 enters the front cavity of the clamping oil cylinder 32 through the oil pipe 35, causing the front cavity of the clamping oil cylinder 32 to expand, which is equivalent to transmitting the pressure generated in the front cavity of the fixed oil cylinder 28 to the front cavity of the clamping oil cylinder 32 on the other side through the oil pipe 35, so that the clamping oil cylinder 32 drives the clamp 31 to clamp the cap beam 100; the clamping force is detected by the pressure sensor to see whether it reaches the preset value. If the clamping force is sufficient, the operation continues; if the clamping force is insufficient, a fault is reported and the machine is shut down.

[0064] Specifically, the above-mentioned dismantling method starts the winch 21 to pre-lift the construction platform 200; detects the change in the retracted and extended length of the wire rope 22 of each winch 21 through each retracted and extended rope length sensor 4, and ensures that the error of the retracted and extended length of the wire rope 22 of each winch 21 is controlled within a certain range; if the retracted and extended length of the wire rope 22 of each winch 21 is within the error range, and the posture parameters of the construction platform 200 during the lifting process deviate too much from the posture parameters when balanced, then adjust the setting position of the dismantling device on the cap beam 100 or increase the number of the dismantling devices.

[0065] In this way, the cap beam 100 and the construction platform 200 are dismantled as a whole through a mechanized construction method. During the dismantling process, only the dismantling device needs to be remotely controlled to avoid high-altitude operations of construction workers. The dismantling process of the cap beam 100 is entirely mechanized, avoiding the problem of a large number of construction workers involved in the past, greatly improving efficiency and reducing risk losses. The clamping mechanism 3 does not require external power and can use the pressure generated by the hanging weight to generate a clamping force. Through balance control, the construction frame is kept balanced during the hoisting and lowering process; and, on the one hand, a three-dimensional posture sensor 5 is set to monitor the hoisting posture of the construction platform 200, and on the other hand, a retractable rope length sensor 4 is set, and the two together ensure the balance of the construction platform.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dismantling device for a cap beam construction platform, characterized in that: include: frame; At least two sets of lifting mechanisms, each of which includes a hoist, a steel wire rope, and a hook connected to the steel wire rope; A clamping mechanism, the clamping mechanism being arranged on the frame and comprising two clamps respectively located on both sides of the cap beam for clamping the cap beam; The two clamps of the clamping mechanism are driven to move by two clamping cylinders respectively; One end of the steel wire rope is fixedly connected to a fixed oil cylinder; the piston rod of the fixed oil cylinder is located in the front chamber thereof, and a first spring is provided in the front chamber of the fixed oil cylinder to drive the front chamber to expand; when the steel wire rope is under load, the steel wire rope pulls the piston rod of the fixed oil cylinder so that the front chamber of the fixed oil cylinder tends to be compressed; The piston rod of the clamping oil cylinder is located in the front cavity thereof, and a second spring is provided in the rear cavity of the clamping oil cylinder to drive the rear cavity to expand; when the front cavity of the clamping oil cylinder expands, the piston rod of the clamping oil cylinder drives the clamp to clamp the cap beam; There are two groups of supporting mechanisms, which are symmetrically arranged; the front cavity of the fixed oil cylinder located on one side of the cap beam is connected to the front cavity of the clamping oil cylinder located on the other side of the cap beam through an oil pipe, and the oil pipe is connected to the oil replenishing cup, and the oil replenishing cup is controlled to close / open by the oil replenishing solenoid valve.

2. The dismantling device for the cap beam construction platform according to claim 1, characterized in that: One end of the steel wire rope is wound and connected to the winch, and the other end is fixed; the hook is connected to a movable pulley, and the movable pulley is hung on the steel wire rope; the lifting mechanism also includes a support frame arranged on the frame, and the support frame is provided with a first fixed pulley and a second fixed pulley; the steel wire rope passes around the first fixed pulley, the movable pulley and the second fixed pulley in sequence.

3. The dismantling device for the cap beam construction platform according to claim 1, characterized in that: The demolition device also includes a balance adjustment device, which includes a three-dimensional posture sensor arranged on the construction platform and a retracted rope length sensor for detecting the retracted length of the wire rope.

4. The dismantling device for the cap beam construction platform according to claim 3, characterized in that: The clamping mechanism further includes a pressure sensor for detecting the clamping force of the clamp.

5. The dismantling device for the cap beam construction platform according to claim 4, characterized in that: The frame is provided with a control drive module, which is respectively connected to the winch, balance adjustment device, pressure sensor and oil supply solenoid valve; the control drive module is also connected to the control unit signal; the control unit is a touch screen, which is used to input instructions and display parameters.

6. A method for dismantling a cap beam construction platform, characterized in that: The dismantling device according to claim 5 is used to dismantle the construction platform, which specifically includes the following steps: Lifting the dismantling device and placing it on the cap beam, and selecting the number of the dismantling devices and the installation position on the cap beam according to the length of the cap beam; Clamping the cap beam using the clamping mechanism to fix the frame on the cap beam; Calibrate the posture balance of the construction platform when it is lifted; Lower the construction platform as a whole and dismantle the lowered construction platform.

7. The dismantling method according to claim 6, characterized in that: More specifically, the method includes the following steps: initially, the oil supply solenoid valve is in an open state, and the hook is placed on the frame so that the hook is in a non-suspended state, so that the hook does not generate a load on the piston rod of the fixed oil cylinder; Close the oil supply solenoid valve and place the hook in a free-hanging suspended state; The hook generates pressure in the front chamber of the fixed oil cylinder, which is transmitted to the front chamber of the clamping oil cylinder on the other side through the oil pipe, so that the clamping oil cylinder drives the clamp to clamp the cap beam; The pressure sensor is used to detect whether the clamping force reaches a preset value. If the clamping force is sufficient, the operation continues; if the clamping force is insufficient, a fault is reported and the machine is shut down.

8. The dismantling method according to claim 7, characterized in that: More specifically, the method includes the following steps: starting the hoist to pre-lift the construction platform; The length of the wire rope of each winch is detected by the length sensor of each winch to ensure that the error of the length of the wire rope of each winch is controlled within a certain range. If the retraction and extension lengths of the wire ropes of each winch are within the error range, but the posture parameters of the construction platform during the lifting process deviate too much from the posture parameters when balanced, then adjust the setting position of the dismantling device on the cap beam or increase the number of the dismantling devices.

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