Disassembling and assembling method for counter weight

Abstract

According to the disassembling and assembling method of the counter weight, the dynamic disassembling and assembling operation is executed based on the disassembling and assembling strategy, and the obvious beneficial effects are achieved. Firstly, a mode of dismounting and mounting a balancing weight on a target layer is adopted, so that a worker only needs to operate on a corresponding floor platform, the safety risk of high-altitude operation in a traditional method is avoided, and the accident probability caused by high-altitude falling or tool falling is reduced. And secondly, a method for dynamically disassembling and assembling the balancing weights ensures that the number and the positions of the balancing weights disassembled and assembled each time meet safety requirements, and system unbalance or other potential safety hazards caused by improper operation are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hoists, and particularly to a method for disassembling and assembling a balance weight. Background Art

[0002] A shaft hoist is a vertical transportation device specifically designed for mines, tunnels, and underground projects, used to lift ore, waste, personnel, or materials from an underground shaft to the ground, or to transport materials in the reverse direction to an underground working area. The shaft hoist has a high load capacity and a deep lifting depth, and is widely used in mining, oil, natural gas, and other underground projects, capable of efficiently and safely performing vertical transportation of materials and personnel in a complex underground environment.

[0003] In the prior art, there is a technical problem of low efficiency in disassembling and assembling the balance weight of the hoist. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide a method for disassembling and assembling a balance weight to solve the technical problem of low efficiency in disassembling and assembling the balance weight of the hoist in the related art.

[0005] To achieve the above technical purpose, the present invention adopts the following technical solutions: A method for disassembling and assembling a balance weight, comprising: Generating a disassembly and assembly strategy for the balance weight to be repaired; wherein, the balance weight is a balance weight configured in a shaft hoist; Based on the disassembly and assembly strategy, dynamically disassembling and / or installing counterweights for the balance weight to be repaired; wherein, dynamically disassembling the counterweights for the balance weight to be repaired means that when the balance weight is lifted to a certain target layer, the staff disassembles the target number of counterweights corresponding to the certain target layer in the certain target layer, and when the balance weight is lifted to another target layer, the staff disassembles the target number of counterweights corresponding to the another target layer in the another target layer; dynamically installing the counterweights for the balance weight to be repaired means that when the balance weight is lowered to a certain target layer, the staff installs the target number of counterweights corresponding to the certain target layer in the certain target layer, and when the balance weight is lowered to another target layer, the staff installs the target number of counterweights corresponding to the another target layer in the another target layer.

[0006] Further, the step of generating a disassembly and assembly strategy for the balance weight to be repaired includes: Determining the number of counterweights to be replaced for the balance weight to be repaired; Determine the structural parameters of the shaft where the balance weight to be repaired is located, the structural parameters of the balance weight, and the dynamic parameters of the balance weight; wherein, the structural parameters of the shaft include the floor height of each layer and the total depth; the structural parameters of the balance weight include the height of the balance weight frame; the dynamic parameters of the balance weight include the tension data on the hoisting side, the tension data on the lowering side, the friction coefficient, the wrap angle data, and the maximum acceleration of the hoist. According to the preset first checking formula, second checking formula, and the dynamic parameters of the balance weight, determine the maximum number of single disassembly and assembly; wherein, the first checking formula is used to check the anti-slip safety of the balance weight when it is stationary; the second checking formula is used to check the anti-slip safety of the balance weight when it is moving. Based on the number of counterweight blocks to be replaced, the maximum number of single disassembly and assembly, the structural parameters of the shaft, and the structural parameters of the balance weight, determine at least one target layer.

[0007] Further, the step of determining the number of counterweight blocks to be replaced for the balance weight to be repaired includes: Collect the image data of the balance weight to be repaired. Input the image data of the balance weight into a preset defect detection model to identify the counterweight blocks to be replaced.

[0008] Further, the step of determining the maximum number of single disassembly and assembly according to the preset first checking formula, second checking formula, and the dynamic parameters of the balance weight includes: Input the dynamic parameters of the balance weight into the preset first checking formula to obtain the maximum number of single disassembly and assembly of the balance weight in the stationary state. Verify the maximum number of single disassembly and assembly through the preset second checking formula. In the case of failed verification, reduce the maximum number of single disassembly and assembly to obtain the corrected maximum number of single disassembly and assembly.

[0009] Further, the step of determining at least one target layer based on the number of counterweight blocks to be replaced, the maximum number of single disassembly and assembly, the structural parameters of the shaft, and the structural parameters of the balance weight includes: According to the structural parameters of the shaft and the structural parameters of the balance weight, determine the number of floors moved each time during disassembly or installation. Taking the maximum number of single disassembly and assembly as the target number, and based on the number of counterweight blocks to be replaced and the target number, determine the number of times the balance weight needs to move. Based on the number of floors moved each time and the number of times the balance weight needs to move, determine the target layer.

[0010] Further, the first checking formula is expressed as: In the formula, represents the tension on the lifting side under the current counterweight, represents the tension on the lowering side, represents the friction coefficient, represents the wrap angle.

[0011] Furthermore, the second verification formula is expressed as: In the formula, represents the tension on the lifting side under the current counterweight, represents the tension on the lowering side, represents the inertial force during acceleration or deceleration, where is the total mass under the current counterweight.

[0012] Furthermore, based on the disassembly and assembly strategy, the steps of dynamically disassembling and / or installing counterweight blocks for the balance weight to be repaired include: During the process of disassembling or installing counterweight blocks for the balance weight, based on the disassembly and assembly strategy, control the balance weight to move to the target layer, fix the balance weight in the target layer, and then disassemble or install the target number of counterweight blocks in the target layer; Whenever the target number of counterweight blocks is disassembled or installed, use the preset first verification formula for static verification; In the case of passing the static verification, based on the disassembly and assembly strategy, move the balance weight to the next target layer; where, during the process of moving the balance weight, use the preset second verification formula to verify in real time whether the safety factor corresponding to the second verification formula is satisfied during the movement of the balance weight; where the first verification formula is used to verify the anti-slip safety of the balance weight when it is stationary; the second verification formula is used to verify the anti-slip safety of the balance weight when it is moving.

[0013] Furthermore, when the balance weight is moved to a certain target floor, lock the frame of the balance weight through a hydraulic rail clamp to prevent deviation caused by wind or vibration.

[0014] Furthermore, hoist the counterweight blocks to be installed or disassembled through an electric hoist.

[0015] Beneficial effects: The balance weight disassembly and assembly method provided by the present invention performs dynamic disassembly and installation operations based on disassembly and assembly strategies, and has significant beneficial effects. First, by adopting the method of disassembling and installing counterweights on the target floor, the staff only needs to operate on the corresponding floor platform, avoiding the safety risks of working at heights in the traditional method and reducing the accident probability caused by falling from heights or dropping tools. Second, the method of dynamically disassembling and installing counterweights ensures that the number and position of counterweights disassembled and installed each time meet safety requirements, avoiding system imbalance or other safety hazards caused by improper operations. In addition, this method utilizes the disassembly and assembly strategy and the dynamic adjustment of the target floor, greatly improving the operation efficiency, reducing the operation time delay and labor intensity caused by traditional manual operations, and being able to flexibly cope with the complex limiting conditions of the vertical shaft space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic flow chart of a method for disassembling and assembling a balance weight provided by an embodiment of the present invention; Figure 2 is a schematic flow chart of a method for disassembling and assembling a balance weight provided by an embodiment of the present invention; Figure 3 is a schematic flow chart of a method for disassembling and assembling a balance weight provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0018] In mine hoists and vertical shaft operations, the balance weight is an important component for maintaining the balance of the hoisting system. Its working principle is to counteract the tension on the hoisting side of the hoisting system through the weight of the counterweights, thereby achieving the balance of the system. However, due to the particularity of the vertical shaft environment, the replacement of the balance weight has always been a high-risk and complex operation in hoist maintenance.

[0019] The traditional method for replacing the balance weight relies on manual operation and usually requires the staff to disassemble and assemble at the bottom of the vertical shaft. Its operation steps are roughly as follows: Workers set up ladders or scaffolds to the bottom of the vertical shaft, climb to the top of the balance weight, and then remove the old counterweights one by one and install the new counterweights. The main problems of this method are: Traditional methods require a large operating space, at least more than 5 meters. Due to the narrow space in the vertical shaft, this operation mode is severely restricted, especially in the underground mine environment with limited space, making it difficult to implement efficiently.

[0020] Since workers have to work at heights and usually need to climb ladders or scaffolds to disassemble and assemble the counterweights, this poses a great threat to the safety of workers. The risks of safety accidents such as falling from heights, dropping tools and counterweights are relatively high.

[0021] Traditional disassembly and assembly methods rely on manual experience. Workers need to manually disassemble and install each piece one by one. The disassembly and assembly process of each counterweight takes a long time, and the overall disassembly and assembly operation may take several days to complete.

[0022] Since traditional methods mainly rely on manual experience to judge the disassembly and assembly sequence and quantity, lacking scientific safety checking calculations and real-time monitoring means, it is easy to cause safety hazards such as anti-slip failure and system imbalance during the disassembly and assembly process.

[0023] In traditional methods, it is usually necessary to remove all the old counterweights at once and then install the new counterweights. This static disassembly and assembly method may cause the hoisting system to be temporarily unbalanced and requires additional temporary counterweights to maintain system stability, increasing the operation difficulty and risk.

[0024] In summary, in the prior art, there is a technical problem of low disassembly and assembly efficiency of the balance weight of the hoist.

[0025] This embodiment provides a method for disassembling and assembling a balance weight, which includes: Step S12: Generate a disassembly and assembly strategy for the balance weight to be repaired; wherein, the balance weight is configured in a vertical shaft hoist.

[0026] In this embodiment, the vertical shaft hoist is a device for vertically transporting materials and personnel in mines or underground projects. The vertical shaft hoist is mainly used to lift ores, waste materials or workers from the deep underground mine to the ground, or to transport materials from the ground to the underground operation area.

[0027] The vertical shaft hoist may include: 1. A hoisting system, which includes a motor, a speed reducer, a drum, a steel wire rope, etc., for providing hoisting force. The motor transmits power to the drum through the speed reducer, drives the steel wire rope to lift and lower, and completes the vertical lifting of materials or personnel.

[0028] 2. A hoisting shaft, which is a vertical shaft. Hoisting equipment is installed in the shaft, and materials or personnel are lifted or lowered through the steel wire rope.

[0029] 3. Balance weight: It is used to balance the load generated during the lifting process and prevent the equipment from losing balance. A balance weight is configured for a vertical shaft hoist. The balance weight counteracts the tension generated during the lifting process through the way of counterweight to maintain the balance of the hoist system.

[0030] 4. Lifting container: It is a container for carrying personnel or materials. For example, mine cars, personnel lifting cages, etc. It can be connected to the drum of the hoist through steel wire ropes and is used for up and down transportation.

[0031] 5. Control system: It is used to monitor and control the operation of the hoist, including the lifting speed, operating status, and safety protection. It can be composed of a computer system and sensors to ensure the safe and efficient operation of the hoist.

[0032] The working principle of a vertical shaft hoist is that the electric motor provides power to drive the drum to rotate. The steel wire rope is wound around the drum to form an up and down movement. When one end of the steel wire rope is connected to the lifting container, the rotation of the drum can drive the container to move up and down. The role of the balance weight is to provide balance during the lifting process and prevent the lifting system from losing balance due to asymmetric loads. By reasonably configuring the counterweight and control system, it is ensured that the hoist can operate stably under high-speed and high-load conditions during work.

[0033] In this embodiment, the vertical shaft hoist can be a vertical shaft friction hoist; In this embodiment, the vertical shaft hoist can be a vertical shaft traction hoist; In this embodiment, the vertical shaft hoist can be a vertical shaft traction hoist; In this embodiment, the vertical shaft hoist can be a vertical shaft hydraulic hoist; In this embodiment, the vertical shaft hoist can be a vertical shaft winch hoist.

[0034] In this embodiment, the disassembly and assembly strategy is expressed as a specific operation plan for dynamically arranging the disassembly and installation of counterweight blocks according to the maintenance requirements of the balance weight, the working conditions of the vertical shaft hoist, and the safety requirements. This strategy ensures that the disassembly and assembly of each counterweight block meet the safety factor requirements through precise planning of each operation step and optimizes the operation efficiency.

[0035] In a specific implementation scheme, the disassembly and assembly strategy may include: 1. Target floor: Specifically, it is necessary to determine the target floor, that is, specify on which floors the disassembly and installation of counterweight blocks are carried out. The selection of the target floor is determined based on the height of the balance weight, the layout of the shaft, the position of the maintenance platform, and safety requirements. Each target floor has a corresponding number of counterweight blocks for the disassembly and installation tasks to ensure the balance and stability of the system during disassembly or installation.

[0036] 2. Target quantity. Specifically, it is also the number of counterweight blocks to be disassembled or installed on each target floor. For example, on a certain target floor, it may be necessary to disassemble 2 counterweight blocks, while on another target floor, it may be necessary to install 3 counterweight blocks. The determination of these quantities can be based on the maintenance requirements of the balance weight and the load requirements of the hoisting system, while ensuring that the system tension and load always meet the safety requirements after each disassembly or installation.

[0037] In a specific implementation, the technical objectives of the disassembly and assembly strategy may include: Ensure that after each disassembly and assembly, the hoisting system meets the static anti-slip (static state) and dynamic anti-slip (moving state) safety factor thresholds; reduce the single-operation time by disassembling and assembling in layers, avoiding manual high-altitude climbing and temporary counterweight requirements in traditional methods; dynamically correct the disassembly and assembly quantity and moving path according to real-time monitoring data (tension, acceleration).

[0038] In a specific implementation, the disassembly and assembly strategy can be formulated through the following steps.

[0039] Step 1. Collect initial data.

[0040] Step 1.1. Detect the status of the balance weight.

[0041] Determine the position and quantity of the counterweight blocks to be replaced through image scanning or manual inspection (for example, it is found that 5 rusty counterweights need to be replaced). Record the current total counterweight mass m = N × w (N is the total number of blocks, w is the weight of a single block).

[0042] Step 1.2. Collect the structural parameters of the vertical shaft.

[0043] Obtain the height of each platform of the vertical shaft (for example, 10 meters per floor) and the total depth. Confirm the height of the balance weight frame to ensure that it can be aligned with different floor platforms when moving.

[0044] Step 1.3. Collect dynamic parameters.

[0045] Measure the tension on the hoisting side and the tension on the lowering side in real time through a tension sensor. Extract the friction coefficient, the wrap angle, and the maximum designed acceleration of the hoist from the database.

[0046] Step 2. Calculate the maximum single disassembly and assembly quantity.

[0047] Step 2.1. Perform a static anti-slip check calculation.

[0048] Assume that after removing n blocks, the total mass becomes: Calculate the static safety factor: In the formula, is expressed as the tension on the hoisting side under the current counterweight, is expressed as the tension on the lowering side, is expressed as the coefficient of friction, is expressed as the wrap angle.

[0049] Solve for the maximum allowable removal amount that satisfies ≥1.5 .

[0050] Step 2.2: Perform the dynamic anti-slip check.

[0051] Substitute the maximum acceleration to verify the dynamic safety factor after removal : If ≥1.2, then = , otherwise reduce until the check passes.

[0052] In a specific example: tons; ; ; ; Then: Static anti-slip limit ; If after removing , ; Dynamic anti-slip coefficient , then 3 blocks are allowed to be removed at a time.

[0053] Step 3: Perform the planning of hierarchical disassembly and assembly.

[0054] Step 3.1: Determine the target floor.

[0055] Calculate the number of floors moved each time according to the shaft height and the height of the balance weight frame: In the formula, is expressed as the height of the balance weight frame, is expressed as the shaft height.

[0056] Step 3.2: Determine the disassembly and assembly sequence.

[0057] In the disassembly strategy, it can start from the top floor and remove blocks each time, and gradually lower the balance weight.

[0058] In the installation strategy, it can start from the bottom floor, and after installing new counterweights, gradually move the balance weight upward.

[0059] In this embodiment, the steps of generating a disassembly and assembly strategy for the balance weight to be repaired may include: Step S122: Determine the number of counterweights that need to be replaced for the balance weight to be repaired.

[0060] Step S124: Determine the structural parameters of the vertical shaft where the balance weight to be repaired is located, the structural parameters of the balance weight, and the dynamic parameters of the balance weight; wherein, the structural parameters of the vertical shaft include the floor height of each floor and the total depth; the structural parameters of the balance weight include the height of the balance weight frame; the dynamic parameters of the balance weight include the tension data on the hoisting side, the tension data on the lowering side, the friction coefficient, the wrap angle data, and the maximum acceleration of the hoist.

[0061] Step S126: Determine the maximum number of single disassembly and assembly according to the preset first checking formula, second checking formula, and the dynamic parameters of the balance weight; wherein, the first checking formula is used to check the anti-slip safety of the balance weight when the balance weight is stationary; the second checking formula is used to check the anti-slip safety of the balance weight when the balance weight is moving.

[0062] Step S128: Based on the number of counterweights that need to be replaced, the maximum number of single disassembly and assembly, the structural parameters of the vertical shaft, and the structural parameters of the balance weight, determine at least one target floor.

[0063] Step S14: Based on the disassembly and assembly strategy, perform dynamic disassembly of counterweights and / or installation of counterweights on the balance weight to be repaired; wherein, performing dynamic disassembly of counterweights on the balance weight to be repaired means that when the balance weight is hoisted to a certain target floor, the staff disassembles the target number of counterweights corresponding to the certain target floor on the certain target floor, and when the balance weight is hoisted to another target floor, the staff disassembles the target number of counterweights corresponding to the another target floor on the another target floor; performing dynamic installation of counterweights on the balance weight to be repaired means that when the balance weight is lowered to a certain target floor, the staff installs the target number of counterweights corresponding to the certain target floor on the certain target floor, and when the balance weight is lowered to another target floor, the staff installs the target number of counterweights corresponding to the another target floor on the another target floor.

[0064] In this embodiment, the method of performing dynamic disassembly of counterweights on the balance weight to be repaired is: In this embodiment, according to the hierarchical planning in the disassembly and assembly strategy, the hoist can be controlled to vertically move the balance weight to the first target floor (for example, the 5th floor of the vertical shaft). During the hoisting process, the acceleration is monitored in real time. and the wire rope tension and , ensuring that the dynamic anti-slip coefficient always meets the safety threshold. After reaching the target floor, lock the balance weight frame with the hydraulic rail clamp to prevent position deviation caused by wind or vibration.

[0065] On the maintenance platform of the target floor, the staff use an electric hoist to lift tools and remove the old counterweight blocks according to the specified quantity (e.g., 3 pieces) in the disassembly and assembly strategy. When disassembling, it can be operated according to the principle of symmetric distribution (e.g., first remove the counterweight blocks on the left and right sides) to avoid additional stress on the frame caused by local imbalance. After removing each counterweight block, the wire rope tension is monitored in real time through the tension sensor and , and calculate the static anti-slip coefficient to ensure that it is not lower than the preset value (e.g., 1.5).

[0066] After completing the disassembly of the current floor, unlock the hydraulic rail clamp and control the hoist to move the balance weight to the next target floor (e.g., the 3rd floor). During the movement, the acceleration of the hoist needs to be strictly controlled within the designed maximum value to avoid exceeding the inertial force limit.

[0067] In this embodiment, the way to perform dynamic installation of counterweight blocks on the balance weight to be repaired is as follows: According to the disassembly and assembly strategy, control the hoist to lower the balance weight to the preset installation starting floor (e.g., the 1st floor of the vertical shaft). During the lowering process, adjust the deceleration curve in real time to ensure that the absolute value of the acceleration does not exceed the braking design value. After reaching the target floor, fix the balance weight with the hydraulic rail clamp and have the staff check whether the installation position is aligned.

[0068] Use an electric hoist to lift the new counterweight blocks to the specified installation slots on the balance weight frame and fix them one by one in a symmetric order (e.g., first install the central position and then expand to both sides). After installing each counterweight block, verify the wire rope tension through the tension sensor and , ensuring that the static anti-slip coefficient is always within the safe range. If it is found that the static anti-slip coefficient fluctuates abnormally (e.g., the deviation exceeds ±5%), immediately suspend the installation and check the fixing status of the counterweight blocks.

[0069] After completing the installation of the current floor, unlock and move the balance weight up to the next target floor (e.g., the 2nd floor). During the movement, monitor the lifting height through the encoder to ensure that the balance weight frame is precisely aligned with the floor platform (the error is controlled within ±10 cm). Repeat the installation process until all new counterweight blocks are installed according to the strategy.

[0070] In this embodiment, the step of dynamically removing and / or installing counterweight blocks on the balance weight to be repaired based on the disassembly and assembly strategy may include: Step S142: During the process of removing or installing counterweight blocks on the balance weight, based on the disassembly and assembly strategy, control the balance weight to move to the target layer, fix the balance weight in the target layer, and then remove or install the target number of counterweight blocks in the target layer; Step S144: Whenever the target number of counterweight blocks is removed or installed, perform static verification using a preset first verification formula; Step S146: In the case of passing the static verification, based on the disassembly and assembly strategy, move the balance weight to the next target layer; wherein, during the process of moving the balance weight, use a preset second verification formula to verify in real time whether the safety factor corresponding to the second verification formula is satisfied during the movement of the balance weight; wherein, the first verification formula is used to verify the anti-slip safety of the balance weight when it is stationary; the second verification formula is used to verify the anti-slip safety of the balance weight when it is moving.

[0071] The balance weight disassembly and assembly method provided in this embodiment performs dynamic disassembly and installation operations based on the disassembly and assembly strategy, and has significant beneficial effects. First, by using the method of removing and installing counterweight blocks on the target layer, the staff only needs to operate on the corresponding floor platform, avoiding the safety risks of high-altitude operations in the traditional method and reducing the accident probability caused by high-altitude falls or tool drops. Second, the method of dynamically removing and installing counterweight blocks ensures that the number and position of the counterweight blocks removed and installed each time meet the safety requirements, avoiding system imbalance or other safety hazards caused by improper operations. In addition, this method uses the disassembly and assembly strategy and dynamic adjustment of the target layer to greatly improve the operation efficiency, reduce the operation time delay and labor intensity caused by traditional manual operations, and can flexibly cope with the complex limiting conditions of the vertical shaft space. In short, the disassembly and assembly method provided in this embodiment can significantly improve the efficiency, accuracy and safety of disassembly and assembly operations on the premise of ensuring safety, and has high industrial application value.

[0072] In some embodiments, the step of generating a disassembly and assembly strategy for the balance weight to be repaired includes: Step S122: Determine the number of counterweight blocks to be replaced for the balance weight to be repaired.

[0073] In this embodiment, the number of counterweight blocks to be replaced can be determined by visual means.

[0074] In this embodiment, the number of counterweight blocks to be replaced can also be determined by collecting image data for defect detection.

[0075] In this embodiment, the counterweight block that needs to be replaced may be a physically damaged counterweight block. Specifically, the counterweight block may be cracked, broken or deformed due to long-term use or external factors (e.g., impact, friction, vibration, etc.). If the integrity of the counterweight block is damaged and it can no longer effectively play its counterweight role, it needs to be replaced.

[0076] In this embodiment, the counterweight block that needs to be replaced may be a corroded or rusted counterweight block. Specifically, when the counterweight block is used in a humid or corrosive environment, the metal material may rust or corrode. Corrosion causes the weight of the counterweight block to be reduced or the structure to be weakened, affecting its original balancing function, and therefore needs to be replaced.

[0077] In this embodiment, the visual inspection can be performed by the staff to directly observe whether the counterweight has obvious damage, cracks, corrosion or missing parts. If the counterweight surface is obviously damaged, or its shape or weight changes that do not meet the standards, it needs to be replaced.

[0078] Step S124: Determine the structural parameters of the counterweight to be repaired in the vertical shaft, the structural parameters of the counterweight and the dynamic parameters of the counterweight; wherein the structural parameters of the vertical shaft include the floor height and total depth of each floor; the structural parameters of the counterweight include the height of the counterweight frame; the dynamic parameters of the counterweight include the lifting side tension data, the lowering side tension data, the friction coefficient, the wrap angle data and the maximum acceleration of the hoist.

[0079] In this embodiment, the height data of each layer can be obtained according to the shaft design drawings or through actual on-site measurements.

[0080] In this embodiment, the total depth of the shaft is the vertical distance from the wellhead to the deepest working platform. It can be determined by measuring the overall depth of the shaft, or according to the total depth data given in the design drawings.

[0081] In this embodiment, the height of the counterweight frame refers to the vertical dimension of the counterweight, that is, the distance from the bottom to the top of the counterweight, which can be obtained by directly measuring the actual height of the counterweight.

[0082] In this embodiment, the tension on the hoisting side refers to the tension of the wire rope on the hoisting side during the operation of the hoist. The tension on the hoisting side can be monitored in real time by a tension sensor or a load sensor installed on the wire rope on the hoisting side. These sensors can transmit real-time data to the control system to provide accurate tension information. The tension on the lowering side refers to the tension of the wire rope on the lowering side during the lowering of the material or the counterweight. Similar to the tension on the hoisting side, the tension on the lowering side is also monitored by a tension sensor installed on the wire rope on the lowering side, providing tension data in real time. The friction coefficient refers to the ratio of the frictional force between the wire rope and the guide rail to the normal force. The friction coefficient can be calculated by experimental tests or by assuming values of the known friction coefficients of the equipment and the environment. The wrap angle refers to the angle formed by the wire rope on the drum or pulley and can be determined by measuring the angle between the wire rope and the guide pulley. The maximum acceleration of the hoist can be determined by the design parameters of the hoist or the settings of the control system.

[0083] Step S126: Determine the maximum number of single disassembly and assembly according to the preset first checking formula, second checking formula and the dynamic parameters of the counterweight; wherein, the first checking formula is used to check the anti-slip safety of the counterweight when it is stationary; the second checking formula is used to check the anti-slip safety of the counterweight when it is moving.

[0084] In this embodiment, the first checking formula, that is, the formula for the static anti-slip safety factor: In the formula, represents the tension on the hoisting side under the current counterweight, represents the tension on the lowering side, represents the friction coefficient, represents the wrap angle.

[0085] In this embodiment, the second checking formula, that is, the formula for the dynamic anti-slip safety factor: In the formula, represents the tension on the hoisting side under the current counterweight, represents the tension on the lowering side, represents the inertial force during acceleration or deceleration, where is the mass of the current counterweight, is the acceleration.

[0086] In this embodiment, first, the first verification formula can be verified. Specifically, it is possible to first assume that several counterweight blocks are removed or installed, then calculate the mass (updated weight) of the balance weight after removing or installing several counterweight blocks, and then calculate the tension on the lowering side based on the updated weight, and further calculate the static anti-slip safety factor of the balance weight after removing or installing several counterweight blocks.

[0087] By iteratively increasing or decreasing the counterweight blocks, the static anti-slip safety factor is made close to the threshold value of the static anti-slip safety factor.

[0088] It can be understood that the dynamic anti-slip safety factor can also be calculated after removing or installing several counterweight blocks. This acceleration can be the maximum acceleration amax.

[0089] Therefore, when both the first verification formula and the second verification formula pass, the maximum single disassembly and assembly quantity can be obtained.

[0090] Step S128: Determine at least one target layer based on the number of counterweight blocks to be replaced, the maximum single disassembly and assembly quantity, the structural parameters of the vertical shaft, and the structural parameters of the balance weight.

[0091] In this embodiment, after determining the number of counterweight blocks to be replaced and the maximum single disassembly and assembly quantity, the number of times of movement can be determined. That is, it is possible to remove or install the maximum single disassembly and assembly quantity of counterweight blocks on each target layer.

[0092] In this embodiment, after determining the structural parameters of the vertical shaft (the height of each layer and the total depth), and the structural parameters of the balance weight (the height of the balance weight frame), the vertical position of each target layer can be determined. After each disassembly or installation operation, the balance weight will be lifted or lowered to the next target layer for subsequent counterweight block operations. It can be understood that the target layer is the layer on which the staff can directly stand to perform the disassembly and assembly tasks without setting up a ladder.

[0093] This embodiment significantly improves the safety and efficiency of the disassembly and assembly operations of the balance weight through an accurate generation process of the disassembly and assembly strategy. First, by clearly determining the number of counterweight blocks to be replaced for the balance weight to be repaired, and combining the structural parameters of the vertical shaft, the structural parameters and dynamic parameters of the balance weight, it is ensured that the disassembly and assembly strategy can be reasonably planned according to the actual situation, thus avoiding system imbalance caused by improper disassembly and assembly. Secondly, based on the first checking formula and the second checking formula, accurate checking is carried out for the anti-slip safety in the static state and the moving state of the balance weight respectively, ensuring that each disassembly and assembly operation is within the safe range and preventing potential safety hazards caused by excessive disassembly or installation of counterweight blocks. In addition, when implementing this disassembly and assembly strategy, by dynamically determining the maximum single disassembly and assembly quantity and the setting of the target layer, the operation levels and task assignments during the disassembly and assembly process are optimized, effectively reducing the operation time and labor intensity and improving the operation efficiency. In summary, this embodiment ensures the scientificity, safety and efficiency of the disassembly and assembly operations by comprehensively considering the structural, dynamic parameters and safety checking, and has high practical application value.

[0094] In some embodiments, the step of determining the number of counterweight blocks to be replaced for the balance weight to be repaired includes: Step S1222: Collect the image data of the balance weight to be repaired.

[0095] In this embodiment, the image data of the balance weight to be repaired can be collected by means of photographing.

[0096] Step S1224: Input the image data of the balance weight into a preset defect detection model to identify the counterweight blocks to be replaced.

[0097] In this embodiment, after the image data is processed, it can be input into a preset defect detection model. This defect detection model can be a convolutional neural network (CNN) model based on deep learning, which is specifically used for image recognition and object detection.

[0098] During the training stage, this defect detection model can be trained using a large number of image data labeled with defect types to learn the features of different types of defects (such as cracks, corrosion, wear, etc.) in the images. The image data in the training dataset needs to cover a variety of different defect types and different angles to improve the generalization ability of the model.

[0099] By analyzing the features in the images, this defect detection model can automatically identify the possible defects on the surface of the balance weight. The defect detection model can not only identify the positions of the defects, but also classify the defect types, for example, judging whether a certain counterweight block needs to be replaced due to corrosion, crack or wear, etc.

[0100] In this embodiment, by introducing image data acquisition and a defect detection model, accurate identification of the number of counterweight replacements for the balance weight is achieved. First, by collecting image data of the balance weight, the current status information of the balance weight to be repaired can be comprehensively and accurately obtained, providing a reliable visual basis for subsequent defect detection. Then, using a preset defect detection model to process and analyze the image data, the counterweights that need to be replaced are automatically identified, avoiding errors in manual operations and uncertainties brought by subjective judgments. This process not only improves the accuracy and efficiency of detection, but also reduces the manual labor intensity and the risk of human operation. At the same time, the application of image data provides precise data support for the formulation of subsequent maintenance plans, ensuring the scientific nature and safety of disassembly and assembly operations. In summary, through automated defect detection, this embodiment effectively improves the accuracy, safety, and operation efficiency in the balance weight repair process.

[0101] In some embodiments, the step of determining the maximum single disassembly and assembly quantity according to the preset first checking formula, second checking formula, and the dynamic parameters of the balance weight includes: Step S1262: Input the dynamic parameters of the balance weight into the preset first checking formula to obtain the maximum single disassembly and assembly quantity of the balance weight in a static state.

[0102] Step S1264: Verify the maximum single disassembly and assembly quantity through the preset second checking formula.

[0103] Step S1266: In the case of failed verification, reduce the maximum single disassembly and assembly quantity to obtain the corrected maximum single disassembly and assembly quantity.

[0104] This embodiment significantly improves the safety and reliability of the balance weight disassembly and assembly operations by combining a dual checking mechanism of static anti-slip and dynamic anti-slip. First, calculate the theoretical maximum disassembly and assembly quantity based on the static anti-slip formula (static safety factor) to ensure that the system tension ratio meets the friction limit in a static state; then verify the safety of this quantity under acceleration / braking conditions through the dynamic anti-slip formula (dynamic safety factor), covering the disturbance of inertial force to the system. If the dynamic verification fails, automatically reduce the single disassembly and assembly quantity and re-check, forming a "calculation-verification-correction" closed-loop control. This method completely avoids the imbalance risk caused by ignoring dynamic inertial force in traditional empirical operations, while maximizing the single operation efficiency and reducing the number of movements.

[0105] In some embodiments, the step of determining at least one target layer based on the number of counterweights to be replaced, the maximum single disassembly and assembly quantity, the structural parameters of the vertical shaft, and the structural parameters of the balance weight includes: Step S1282: Determine the number of floors moved each time during disassembly or installation according to the structural parameters of the vertical shaft and the structural parameters of the balance weight.

[0106] In this embodiment, the structural parameters of the vertical shaft include the floor height of each layer and the total depth, and these data are the basis for determining the target layer. The floor height of each layer refers to the vertical distance between two adjacent working platforms, and the total depth is the vertical distance from the wellhead to the deepest working platform. The structural parameters of the balance weight include the height of the balance weight frame, and these data can determine the movement range of the balance weight during the lifting and lowering process. The height of the balance weight determines its movement range in the shaft, thus affecting the specific operation position when disassembling or installing the counterweight blocks.

[0107] By combining the floor height of each layer and the height of the balance weight, the number of floors that the balance weight needs to move can be calculated each time when disassembling or installing the counterweight blocks. After each operation, the balance weight needs to be lifted or lowered a certain number of floors to ensure that the staff can safely carry out the disassembly or installation operation on the target layer.

[0108] Step S1284: Taking the maximum single disassembly and assembly quantity as the target quantity, and based on the quantity of the counterweight blocks to be replaced and the target quantity, determine the number of times the balance weight needs to move.

[0109] In this embodiment, based on the total number of counterweight blocks to be replaced and the maximum disassembly and assembly quantity allowed each time, the number of times the balance weight needs to move to complete the disassembly and installation of all counterweight blocks can be calculated. For example, if the number of counterweight blocks to be replaced is 12 and the maximum single disassembly and assembly quantity is 3, then the balance weight needs to move to the target layer 4 times, and 3 counterweight blocks are disassembled or installed each time.

[0110] Step S1286: Based on the number of floors for each movement and the number of times the balance weight needs to move, determine the target layer.

[0111] This embodiment significantly improves the operation efficiency and safety by scientifically planning the movement path and disassembly and assembly rhythm of the balance weight. First, according to the proportional relationship between the floor height of the vertical shaft and the height of the balance weight frame, accurately calculate the number of floors for each movement (for example, each movement of 1 floor covers 10 meters), ensuring that the balance weight is accurately aligned with the maintenance platform of the target layer and avoiding repeated adjustments due to insufficient span; secondly, automatically calculate the number of movements (for example, 4 times) based on the maximum single disassembly and assembly quantity (for example, 3 pieces / time) and the total replacement quantity (for example, 12 pieces), forming an optimal sequence of hierarchical disassembly and assembly to reduce redundant operations; finally, generate the target layer coordinates (for example, the 5th, 3rd, and 1st floors) by combining the movement step length and the number of times, enabling the staff to operate layer by layer according to the plan on the fixed platform without making temporary decisions or climbing, and at the same time avoiding the risk of system imbalance caused by blind movement, especially suitable for high-risk scenarios such as deep wells and narrow spaces.

[0112] In some embodiments, the first verification formula is expressed as: In the formula, is expressed as the tension on the lifting side under the current counterweight, is expressed as the tension on the lowering side, is expressed as the friction coefficient, is expressed as the wrap angle.

[0113] In some embodiments, the second checking formula is expressed as: In the formula, is expressed as the tension on the lifting side under the current counterweight, is expressed as the tension on the lowering side, is expressed as the inertial force during acceleration or deceleration, where is the total mass under the current counterweight.

[0114] In some embodiments, based on the disassembly and assembly strategy, the steps of dynamically disassembling and / or installing counterweight blocks for the balance weight to be repaired include: Step S142: During the process of disassembling or installing counterweight blocks for the balance weight, based on the disassembly and assembly strategy, control the balance weight to move to the target layer, fix the balance weight in the target layer, and then disassemble or install the target number of counterweight blocks in the target layer; Step S144: Whenever the target number of counterweight blocks is disassembled or installed, use the preset first checking formula for static verification; Step S146: In the case of passing the static verification, based on the disassembly and assembly strategy, move the balance weight to the next target layer; wherein, during the process of moving the balance weight, use the preset second checking formula to check in real time whether the safety factor corresponding to the second checking formula is satisfied during the process of moving the balance weight; wherein, the first checking formula is used to check the anti-slip safety of the balance weight when the balance weight is stationary; the second checking formula is used to check the anti-slip safety of the balance weight when the balance weight is moving.

[0115] This implementation mode adopts a "static verification - dynamic calculation" dual - insurance mechanism, comprehensively covering all - working - condition safety risks in the disassembly and assembly operations of the balance weight, and achieving an accurate balance between safety and efficiency. After each disassembly and assembly, based on the static anti - slip formula (the first calculation formula), it verifies whether the tension ratio exceeds the limit in the static state to ensure the static stability of the current counterweight distribution; when moving to the next target floor, it monitors the influence of acceleration on the inertial force in real - time through the dynamic anti - slip formula (the second calculation formula) to prevent dynamic imbalance during the lifting or braking process. This two - stage calculation mode completely solves the problem of the separation of dynamic and static risks in traditional methods, avoids anti - slip failure accidents caused by misjudgment of manual experience, and at the same time reduces the process connection time through automatic closed - loop control, shortens the single - operation cycle, and can adapt to complex working conditions such as vertical shaft depth and acceleration changes.

[0116] In some implementation modes, when the balance weight is moved to a certain target floor, the frame of the balance weight is locked by a hydraulic rail clamp to prevent deviation caused by wind or vibration.

[0117] In this implementation mode, when the balance weight is moved to the target floor, the frame of the balance weight is locked by a hydraulic rail clamp, effectively preventing deviation caused by external factors such as wind or vibration. This method ensures that the balance weight is always in the predetermined position during the disassembly and assembly process, avoiding potential safety hazards or operation errors caused by position deviation. The hydraulic rail clamp provides stable support, enhances the positioning accuracy of the balance weight, and ensures the accuracy and safety during each disassembly or installation of the counterweight block. This not only improves the reliability of the operation but also reduces the risks brought by unstable equipment or external disturbances, thus further enhancing the safety and efficiency of the disassembly and assembly operations.

[0118] In some implementation modes, an electric hoist is used to lift the counterweight block that needs to be installed or disassembled.

[0119] In this implementation mode, by using an electric hoist to lift the counterweight block that needs to be installed or disassembled, the efficiency and safety of the operation are significantly improved. The electric hoist can precisely control the lifting and positioning of the counterweight block, reducing the labor intensity of manual handling and operation, and at the same time avoiding errors and risks in manual operation. Through the automatic lifting of the electric hoist, it can ensure that the counterweight block is more stable and safe during the disassembly and installation process, reducing the risk of the counterweight block falling or becoming unstable. In addition, the electric hoist also increases the operation speed, making the entire disassembly and assembly process more efficient, thus improving the overall efficiency of the maintenance operation and ensuring the safety during the operation process.

[0120] In a specific embodiment, a method for disassembling and assembling a dynamic balance weight based on the verification of static and dynamic anti-slip formulas is provided. By dynamically adjusting the working position of the balance weight, the method enables workers to perform disassembly and assembly operations on platforms at different floors, thus avoiding the risks of working at heights. At the same time, real-time verification using the static and dynamic anti-slip formulas ensures the safety of each disassembly and assembly of the counterweight blocks, significantly improving the operation efficiency and safety.

[0121] Step S1: Generate a disassembly and assembly strategy for the balance weight to be repaired.

[0122] In this embodiment, the balance weight to be repaired can be detected by visual inspection or a preset detection device (such as image scanning to check for areas of rust or cracks) to determine whether counterweight blocks need to be removed.

[0123] This disassembly and assembly strategy is used to ensure that the lifting system still meets the anti-slip safety factor after each removal of the counterweight block.

[0124] In this embodiment, the disassembly and assembly strategy can be as follows: In the case where counterweight blocks need to be removed, the disassembly and assembly strategy can be the number of counterweight blocks to be removed on the target floor (target maintenance platform). The target floor is one or more floors determined in advance based on the floor height and the height of the balance weight for removing the counterweight blocks during the removal process.

[0125] On this target floor, workers only need to stand on the target floor to remove the counterweight blocks instead of erecting a ladder for working at heights.

[0126] For example, remove two blocks on the first floor. After removing two blocks, lift the balance weight to the third floor, and workers stand on the third floor to continue removing three blocks. Throughout the process, the static and dynamic verification formulas are satisfied, and safety can be guaranteed.

[0127] In the case where counterweight blocks need to be installed, the disassembly and assembly strategy can be the number of counterweight blocks to be installed on the target floor. For example, after workers stand on the top floor (target floor) and install two counterweight blocks, lower the balance weight to other target floors to perform the installation of the remaining counterweight blocks. Throughout the process, the static and dynamic verification formulas are satisfied, and safety can be guaranteed.

[0128] Specifically, a specific disassembly and assembly strategy needs to be formulated based on the static and dynamic anti-slip formulas.

[0129] Formula for the static anti-slip safety factor: In the formula, represents the tension on the lifting side under the current counterweight, Denoted as the tension on the lowering side, Denoted as the coefficient of friction, Denoted as the wrap angle.

[0130] Formula for the dynamic anti-slip safety factor: In the formula, Denoted as the tension on the hoisting side under the current counterweight, Denoted as the tension on the lowering side, Denoted as the inertial force during acceleration or deceleration.

[0131] Step S2: Based on the disassembly and assembly strategy, perform dynamic disassembly and assembly on the counterweight to be repaired.

[0132] Specifically, based on the target floor in the disassembly and assembly strategy and the number of counterweight blocks to be removed and installed on each floor, perform disassembly, assembly, and movement on the counterweight to be repaired dynamically.

[0133] Correspondingly, during the disassembly and assembly process, the static and dynamic anti-slip formulas can also be used for on-site real-time verification. More specifically, during the process of removing counterweight blocks, after removing the target number of counterweight blocks on a certain target floor, first use the static anti-slip safety factor formula to perform static verification to determine whether the counterweight after reducing the counterweight blocks currently meets the static anti-slip safety factor.

[0134] Therefore, based on the above formula for the static anti-slip safety factor, the tension ratio of the wire ropes on the hoisting side and the lowering side can be calculated in real time to ensure that the safety factor is met.

[0135] When the static anti-slip safety factor is met, based on the pre-established disassembly and assembly strategy, control the hoist to lift the counterweight to the next target floor (it can be understood that in many cases, the next target floor refers to the upper floor or several upper floors of the current target floor, because the counterweight will rise after reducing the weight).

[0136] During the process of controlling the hoist to lift the counterweight to the next target floor, based on the formula for the dynamic anti-slip safety factor, it can be verified in real time whether the safety factor corresponding to the formula for the dynamic anti-slip safety factor is met during the lifting process of the counterweight. For example, the acceleration data can be collected in real time for verification.

[0137] Through the above method, dynamic disassembly and assembly can be performed on the counterweight during the ascending and descending processes of the counterweight.

[0138] In this embodiment, when the counterweight is moved to a certain target floor, the counterweight frame can be locked by a hydraulic rail clamp to prevent deviation caused by wind or vibration.

[0139] In this embodiment, a hoist can be used to lift the counterweight that needs to be installed or removed, thus replacing manual handling.

[0140] In this embodiment, during the actual disassembly or installation of the counterweight, a tension sensor can be used to monitor the wire rope tension to obtain real-time tension data, or an acceleration sensor can be used to obtain real-time acceleration, so as to dynamically correct the static and dynamic checking formulas.

[0141] It can be understood that in step S1, based on the theoretical mechanical motion model, the tension data and acceleration data are calculated, and thus the theoretical static and dynamic anti-slip formula is calculated. Therefore, during the actual installation process, the real-time mechanical data and acceleration data can be measured for dynamic verification.

[0142] In this implementation scheme, through the verification of the static and dynamic anti-slip formula, the position of the balance weight is dynamically adjusted so that it stays on the working platforms at different floors of the vertical shaft, and the counterweight is disassembled and assembled layer by layer. This implementation scheme uses the power of the hoist itself to lift the balance weight to different floors (for example, an inspection platform is set every 10 meters in the vertical shaft). The staff can work on the floor platform without climbing. Based on the static and dynamic anti-slip formula, the present invention calculates the number and position of the balance blocks that can be removed each time to ensure that the system is always in a safe state.

[0143] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0144] Optionally, the specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be elaborated here.

[0145] The serial numbers of the above embodiments of this application are only for description and do not represent the superiority or inferiority of the embodiments.

[0146] In the above embodiments of this application, the descriptions of each embodiment have their own emphases. For the parts not elaborated in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0147] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A method for disassembling and assembling a counterweight, characterized in that: include: Generate a disassembly and assembly strategy for the counterweight to be repaired; wherein the counterweight is a counterweight configured in a vertical shaft hoist; Based on the disassembly and assembly strategy, the counterweight blocks are dynamically removed and / or installed on the counterweight block to be repaired; wherein, the dynamic removal of the counterweight blocks on the counterweight block to be repaired means that when the counterweight is lifted to a certain target layer, the staff removes the counterweight blocks corresponding to the target number of the certain target layer in the certain target layer, and when the counterweight is lifted to another target layer, the staff removes the counterweight blocks corresponding to the target number of the other target layer in the other target layer; the dynamic installation of the counterweight blocks on the counterweight to be repaired means that when the counterweight is lowered to a certain target layer, the staff installs the counterweight blocks corresponding to the target number of the certain target layer in the certain target layer, and when the counterweight is lowered to another target layer, the staff installs the counterweight blocks corresponding to the target number of the other target layer in the other target layer.

2. The method according to claim 1, characterized in that The step of generating a disassembly and assembly strategy for the counterweight to be repaired includes: For the counterweight to be repaired, determining the number of counterweights that need to be replaced; Determine the structural parameters of the counterweight to be repaired in the shaft, the structural parameters of the counterweight, and the dynamic parameters of the counterweight; wherein the structural parameters of the shaft include the floor height and total depth of each floor; the structural parameters of the counterweight include the height of the counterweight frame; the dynamic parameters of the counterweight include the lifting side tension data, the lowering side tension data, the friction coefficient, the wrap angle data, and the maximum acceleration of the hoist; The maximum single disassembly and assembly quantity is determined according to a preset first verification formula, a second verification formula and the dynamic parameters of the counterweight; wherein the first verification formula is used to verify the anti-slip safety of the counterweight when the counterweight is stationary; and the second verification formula is used to verify the anti-slip safety of the counterweight when the counterweight moves; At least one target layer is determined based on the number of counterweight blocks that need to be replaced, the maximum number of single disassembly and assembly, the structural parameters of the shaft, and the structural parameters of the counterweight.

3. The method according to claim 2, characterized in that The step of determining the number of counterweights that need to be replaced for the counterweight to be repaired comprises: Collecting image data of the counterweight to be repaired; The image data of the counterweight is fed into a pre-set defect detection model to identify the counterweight that needs to be replaced.

4. The method according to claim 2, characterized in that: The step of determining the maximum single disassembly and assembly quantity according to the preset first verification formula, the second verification formula and the dynamic parameters of the counterweight comprises: Inputting the dynamic parameters of the counterweight into a preset first verification formula to obtain the maximum number of single disassembly and assembly of the counterweight in a static state; The maximum single disassembly and assembly quantity is verified through the preset second verification formula; When the verification fails, the maximum single disassembly and assembly quantity is reduced to obtain a corrected maximum single disassembly and assembly quantity.

5. The method according to claim 2, characterized in that: The step of determining at least one target layer based on the number of counterweight blocks that need to be replaced, the maximum number of single disassembly and assembly, the structural parameters of the shaft, and the structural parameters of the counterweight includes: According to the structural parameters of the shaft and the structural parameters of the counterweight, determine the number of floors to be moved each time during the disassembly or installation process; Taking the maximum single disassembly and assembly quantity as the target quantity, and based on the number of counterweights that need to be replaced and the target quantity, determining the number of times the counterweight needs to be moved; The target floor is determined based on the number of floors moved each time and the number of times the counterweight needs to move.

6. The method according to any one of claims 2 to 5, characterized in that: The first verification formula is expressed as: In the formula, It is expressed as the tension on the lifting side under the current counterweight. Expressed as the tension on the lower side, Expressed as the friction coefficient, Expressed as the wrap angle.

7. The method according to any one of claims 2 to 5, characterized in that: The second verification formula is expressed as: In the formula, It is expressed as the tension on the lifting side under the current counterweight. Expressed as the tension on the lower side, Expressed as the inertial force during acceleration or deceleration, where is the total mass under the current counterweight.

8. The method according to any one of claim 1, characterized in that: The step of dynamically removing the counterweight block and / or installing the counterweight block on the counterweight to be repaired based on the disassembly and assembly strategy includes: In the process of disassembling or installing the counterweight blocks on the counterweight, based on the disassembly and installation strategy, the counterweight is controlled to move to the target layer, the counterweight is fixed to the target layer, and then the target number of counterweight blocks are disassembled or installed on the target layer; Whenever the target number of counterweights are removed or installed, a static check is performed using the preset first verification formula; When the static verification has passed, the balance hammer is moved to the next target layer based on the disassembly and assembly strategy; wherein, in the process of moving the balance hammer, a preset second verification formula is used to verify in real time whether the safety factor corresponding to the second verification formula is met during the movement of the balance hammer; wherein, the first verification formula is used to verify the anti-slip safety of the balance hammer when the balance hammer is stationary; and the second verification formula is used to verify the anti-slip safety of the balance hammer when the balance hammer is moving.

9. The method according to any one of claim 8, characterized in that: When the counterweight is moved to a target floor, the frame of the counterweight is locked by a hydraulic rail clamp to prevent deviation caused by wind or vibration.

10. The method according to any one of claim 8, characterized in that: Use electric hoist to lift the counterweight that needs to be installed or removed.

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