Counter hydraulic wrench for preventing missed drilling of bolts for offshore wind power and use method of counter hydraulic wrench

Abstract

The invention discloses a counter hydraulic wrench for preventing missed screwing of a bolt for offshore wind power and a use method thereof, and aims to solve the technical problems that the bolt fastening operation is low in accuracy and the bolt is easy to be missed in the installation process of offshore wind power equipment. The timing counter device is fixedly installed on the hydraulic wrench body and comprises the counter module, the timing module and the control module, the action frequency of the hydraulic wrench during working each time is recorded, the working time or the working period is set, and when the preset condition is met, a prompt signal is sent out to remind an operator to pay attention to the number of bolts; the device is simple in structure and convenient to operate, the accuracy and efficiency of bolt fastening operation can be effectively improved, the phenomenon that bolts are missed to be screwed is avoided, and the device is suitable for installation and maintenance of offshore wind power equipment; in addition, the counter hydraulic wrench further has data storage and transmission functions, data are uploaded to a cloud server, remote monitoring and analysis are facilitated, the operation process is further optimized, and safe and stable operation of offshore wind power facilities is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of offshore wind power equipment installation and maintenance, and in particular to a counter hydraulic wrench for preventing bolt leakage in offshore wind power and a use method thereof. Background Art

[0002] During the installation and operation of offshore wind power equipment, the connection quality of high-strength bolts is a key factor in ensuring the stability and safety of the entire wind power structure. Since offshore wind power equipment is usually located in sea areas far away from land, the environment is complex and changeable, and the equipment itself has a large structure, the number of high-strength bolts required is large and large in size, so the tightening of bolts has become a crucial task.

[0003] At present, the tightening of high-strength bolts of offshore wind power equipment mainly relies on hydraulic torque wrenches or tensioners. These tools apply a predetermined torque or tension to make the bolts reach the required tightening degree, thereby ensuring the reliability of the bolt connection. However, in the actual construction process, due to the large number of bolts, wide distribution, complexity of the construction environment and differences in the operation of construction personnel, it is often difficult to avoid the occurrence of bolt omissions. Bolt omissions will not only affect the tightness and uniformity of the bolt connection and reduce the overall strength of the structure, but may also cause vibration and noise in the operation of wind power equipment, and even cause serious safety accidents.

[0004] In order to solve the problem of bolt leakage, there have been some attempts in the prior art. For example, some patents propose to improve the accuracy and efficiency of the fastening operation by improving the bolt fastening process or using special fastening tools. However, these solutions often have problems such as complex operation, high cost or limited scope of application, and are difficult to be widely used in actual construction.

[0005] Therefore, the problem of bolt leakage is still difficult to effectively avoid in the current high-strength bolt tightening operation of offshore wind power equipment. This not only increases the operating risk and maintenance cost of wind power equipment, but also restricts the further development of the offshore wind power industry.

[0006] In view of the above background, the present invention proposes a counter hydraulic wrench for preventing bolt missing in offshore wind power, aiming to achieve precise control and counting of the bolt tightening process by adding a timing counter device, thereby effectively preventing the occurrence of bolt missing and improving the safety and reliability of offshore wind power equipment installation and maintenance. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a counter hydraulic wrench for preventing bolt missing in offshore wind power and a method of using the same, so as to solve the problem of bolt missing when tightening high-strength connecting bolts in the field of offshore wind power technology, especially during wind turbine installation and subsequent operation and maintenance.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: a counter hydraulic wrench for preventing bolt leakage in offshore wind power, including a hydraulic wrench body and a timing counter module. The timing counter module is installed on the hydraulic wrench body, including a counter module, a timing module and a control module. The counter module is used to record the number of actions of the hydraulic wrench body each time it works, the timing module is used to set the working time or working cycle of the counter, and the control module is used to receive signals from the counter module and the timing module, and send a prompt signal when a predetermined condition is met.

[0009] In a preferred solution, the hydraulic wrench body is provided with a limit position for the rotation of the sleeve torque value, and a timing counter module is detachably installed at the limit position.

[0010] In a preferred solution, the counter module of the timing counter device counts by accumulation or subtraction, and by observing whether the counter is cleared or reaches a preset threshold, it is determined whether the torque process of the bolt tightening construction is completed, thereby avoiding bolt leakage.

[0011] In a preferred solution, the counter module includes a counter body and a display screen, the counter body is connected to the limit position of the hydraulic wrench body, and the display screen is used to display the count value of the counter body.

[0012] In a preferred solution, the counter module further includes a reset button, which is used to reset the count value of the counter body before each bolt tightening construction begins.

[0013] In a preferred solution, the counter module has a preset threshold setting function, and the preset threshold is determined according to the total number of high-strength connecting bolts between wind turbine flanges.

[0014] In a preferred solution, the counter module is an electronic counter or a mechanical counter, which generates a corresponding counting signal according to the action of the hydraulic wrench body.

[0015] In a preferred solution, the control module sends out a prompt signal through sound and light alarms, display screens, etc.

[0016] The preferred solution also includes an intelligent control system, which is connected to the timing counter device by signal and is used for remote monitoring and automatic control of the working status of the counter hydraulic wrench.

[0017] The method of using the counter hydraulic wrench for preventing bolt leakage in offshore wind power as described in any one of the above comprises the following steps: Step 1: Put the working head of the counter hydraulic wrench into contact with the bolt head to be tightened; Step 2: Operate the hydraulic wrench body to make the working head apply tightening torque to the bolt; Step 3: The counter module records the number of each tightening action; Step 4: The timing module monitors the counting process according to the set working time or working cycle; Step 5: When the predetermined conditions are met, the control module sends a prompt signal to remind the operator to pay attention to the number of bolts.

[0018] In the preferred solution, when applying tightening torque to the bolts in Step 2, the hydraulic wrench body tightens the bolts using the cross diagonal method, and maintains continuity during the entire high-strength bolt construction period, first completing the tightening of all bolts at 50% torque, and then tightening at 100% torque.

[0019] The counter hydraulic wrench for preventing bolt leakage in offshore wind power and the use method thereof provided by the present invention have the following beneficial effects: 1. The present invention aims at the problem that the traditional method easily leads to the missing of bolts, resulting in low safety and stability of the overall structure. By providing a counter hydraulic wrench, the tightening times of each bolt are accurately recorded to ensure that each bolt is correctly tightened, thereby improving the reliability and safety of the entire structure and successfully solving the problem of low accuracy of bolt tightening operations in the prior art; 2. The present invention installs a timing counter at the limit position of the torque value rotation of the hydraulic wrench sleeve to record the number of times the bolts are tightened. The construction personnel can quickly judge whether all the bolts are tightened by observing the value of the counter, avoiding rework of the torque construction due to missed bolts, which greatly shortens the construction time and improves work efficiency. 3. The present invention introduces a new judgment mechanism, which uses a cumulative or cumulative decrement method to judge whether the number of bolt tightening meets the standard by clearing the counter or reaching the threshold. This new judgment mechanism can accurately reflect the actual situation of bolt tightening, effectively avoid the problem of bolt leakage, and further improve the construction quality and safety; 4. The solution of the present invention ensures that all bolts are properly tightened, avoiding safety accidents caused by loose bolts, and providing a strong guarantee for the stable operation of the fan; 5. The present invention helps to reduce the operation and maintenance cost of wind farms by reducing the failure rate of wind turbines caused by bolt leakage and loosening, which is of great significance for improving the overall economic benefits of wind farms; 6. The counter hydraulic wrench of the present invention has a simple structure and is easy to manufacture and maintain; 7. The present invention is easy to operate, and construction personnel can easily master its use without complicated training; 8. The counter hydraulic wrench of the present invention is highly practical and is not only suitable for offshore wind farms, but can also be widely used in other fields requiring bolt tightening operations; 9. The present invention has high promotion value and application prospects, and is expected to bring significant economic and social benefits to related industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples: Figure 1 It is a schematic diagram of the overall structure of the system of the present invention; In the figure: hydraulic wrench body 1, timing counter module 2. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments: Example 1 like Figure 1 As shown, a counter hydraulic wrench for preventing bolt leakage in offshore wind power includes a hydraulic wrench body 1 and a timing counter module 2. The timing counter module 2 is installed on the hydraulic wrench body 1, including a counter module, a timing module and a control module. The counter module is used to record the number of actions of the hydraulic wrench body 1 each time it works, the timing module is used to set the working time or working cycle of the counter, and the control module is used to receive signals from the counter module and the timing module, and send a prompt signal when a predetermined condition is met.

[0022] In this embodiment, the hydraulic wrench body 1 is provided with a limit position for the rotation of the sleeve torque value, and the timing counter module 2 is detachably installed at the limit position.

[0023] Furthermore, the counter module of the timing counter device 2 adopts an accumulation or subtraction method for counting, and by observing whether the counter is cleared or reaches a preset threshold, it is determined whether the torque process of the bolt tightening construction is completed, thereby avoiding bolt leakage.

[0024] Furthermore, the counter module includes a counter body and a display screen. The counter body is connected to the limit position of the hydraulic wrench body 1, and the display screen is used to display the count value of the counter body.

[0025] Furthermore, the counter module also includes a reset button, which is used to reset the count value of the counter body before each bolt tightening construction begins.

[0026] Furthermore, the counter module has a preset threshold setting function, and the preset threshold is determined according to the total number of high-strength connecting bolts between wind turbine flanges.

[0027] Furthermore, the counter module is an electronic counter or a mechanical counter, which generates a corresponding counting signal according to the action of the hydraulic wrench body 1 .

[0028] Furthermore, the control module sends out a prompt signal through sound and light alarms, display screens, etc.

[0029] Furthermore, it also includes an intelligent control system, which is connected to the timing counter device 2 by signal and is used for remote monitoring and automatic control of the working state of the counter hydraulic wrench.

[0030] Example 2 In another preferred embodiment, based on Example 1, the method of using the counter hydraulic wrench for preventing bolt leakage in offshore wind power as described in Example 1 comprises the following steps: Step 1: Put the working head of the counter hydraulic wrench into contact with the bolt head to be tightened; Step 2: Operate the hydraulic wrench body 1 so that the working head applies a tightening torque to the bolt; Step 3: The counter module records the number of each tightening action; Step 4: The timing module monitors the counting process according to the set working time or working cycle; Step 5: When the predetermined conditions are met, the control module sends a prompt signal to remind the operator to pay attention to the number of bolts.

[0031] In this embodiment, when applying tightening torque to the bolts in Step 2, the hydraulic wrench body 1 tightens the bolts using the cross diagonal method, and maintains continuity during the entire high-strength bolt construction period, first completing the tightening of all bolts with 50% torque, and then tightening with 100% torque.

[0032] Example 3 In another preferred embodiment, based on embodiments 1 and 2, Figure 1 As shown, a counter hydraulic wrench for preventing bolt leakage in offshore wind power and a method of using the same are described in detail below in conjunction with specific embodiments: The present invention provides a counter hydraulic wrench for preventing bolt leakage in offshore wind power generation, and the structure of the hydraulic wrench mainly comprises a hydraulic wrench body 1 and a timing counter device 2.

[0033] Hydraulic wrench body 1: adopts the conventional structure in the prior art, including a wrench body, a hydraulic cylinder, a transmission mechanism and a working head; the wrench body is used for holding and operating, the hydraulic cylinder provides power, the transmission mechanism transmits the power generated by the hydraulic cylinder to the working head, and the working head is used to contact the bolt head and apply tightening torque.

[0034] Timing counter device 2: This device is the core innovation of the present invention, and its structure includes a counter module, a timing module and a control module; the counter module is used to record the number of actions of the hydraulic wrench each time it works; the timing module is used to set the working time or working cycle of the counter; the control module is responsible for receiving signals from the counter module and the timing module, and sending a prompt signal when the predetermined conditions are met.

[0035] In a specific implementation, the timing counter device 2 is fixed to an appropriate position of the hydraulic wrench body 1 by bolts or welding, etc., to ensure that the number of actions of the hydraulic wrench can be accurately recorded when the hydraulic wrench is working; the counter module adopts an electronic counter or a mechanical counter, which can generate a corresponding counting signal according to the action of the hydraulic wrench; the timing module can set the working time or working cycle of the counter according to actual needs, for example, setting a prompt signal after every hour of work or tightening a certain number of bolts.

[0036] After receiving the signals from the counter module and the timing module, the control module sends out prompt signals through sound and light alarms, display screens, etc., to remind construction personnel to pay attention to the number of bolts, thereby effectively preventing the occurrence of bolt omissions.

[0037] In order to verify the effectiveness of the present invention, we conducted the following experiment: at the installation site of offshore wind power equipment, a group of bolts that need to be tightened were selected, and the counter hydraulic wrench provided by the present invention was used to perform the tightening operation; the experimental results showed that during the tightening process, the counter was able to accurately record each tightening action and send a prompt signal after reaching a predetermined number, effectively avoiding the occurrence of bolt omissions.

[0038] In addition, the present invention also provides a variety of different implementation methods to meet the needs of different scenarios. For example, the working time or working cycle of the timing counter device can be adjusted according to actual needs; working heads of different specifications can be replaced to adapt to bolts of different sizes; and the timing counter device can be combined with an intelligent control system to achieve functions such as remote monitoring and automatic control.

[0039] Example 4 In another preferred embodiment, based on embodiments 1, 2, and 3, as another specific implementation method, the present invention can also integrate the timing counter device 2 into the control system of the hydraulic wrench to form an integrated counter hydraulic wrench; in this implementation method, the control module of the timing counter device 2 is directly connected to the control system of the hydraulic wrench, and the working parameters of the counter can be set through the control system, and a prompt signal can be sent through the display screen or alarm device of the control system when the predetermined conditions are met.

[0040] This integrated counter hydraulic wrench is not only more compact and easier to operate, but also can more accurately record the working status of the hydraulic wrench, thereby improving the accuracy and efficiency of bolt tightening operations.

[0041] Example 5 In another preferred embodiment, based on embodiments 1, 2, 3, and 4, this embodiment takes the high-strength connecting bolts (a total of 360 bolts) between the top flange of six foundations and the bottom flange of the tower of a certain project as an example to illustrate in detail the specific implementation mode of the present invention.

[0042] First, a hydraulic wrench suitable for tightening high-strength bolts in offshore wind power is selected as the basic equipment; the hydraulic wrench should have stable hydraulic torque output and precise torque control function.

[0043] Next, the hydraulic wrench is modified; a timing counter device 2 is installed at the limit position of the torque value rotation of the wrench socket. The counter module of the timing counter device 2 records the number of rotations of the wrench socket in an accumulation or subtraction manner, thereby indirectly reflecting the number of bolt tightening times. The design of the counter should ensure accurate counting during each bolt tightening process and is not easily affected by external interference.

[0044] During the specific construction process, the bolts are divided into two groups according to the cross-diagonal method and tightened with 50% and 100% torque respectively. When tightening with 100% torque, start the hydraulic wrench and observe the counter. Every time a bolt is tightened, the counter module will accumulate or subtract once accordingly.

[0045] To ensure that all bolts are tightened with 100% torque, the operator needs to clear the counter module before construction. During the construction process, the progress of bolt tightening can be grasped in real time by observing the value changes of the counter module. When the value of the counter module reaches the preset threshold (i.e. 360 times), it means that all bolts have been tightened with 100% torque, thus avoiding the phenomenon of missing bolts.

[0046] In addition, the present invention also provides a function of recording and storing counter data; during the construction process, the counter module can record the data of each bolt tightening and store it in the internal memory; these data can be used for subsequent quality inspection and problem tracing, further improving construction quality and efficiency.

[0047] Example 6 In another preferred embodiment, based on embodiments 1, 2, 3, 4, and 5, this embodiment is basically the same as embodiment 5, but some improvements are made in the design of the counter; specifically, the counter in this embodiment adopts more advanced sensor technology and data processing algorithms, which can more accurately record the number of rotations and torque values ​​of the wrench socket.

[0048] During the construction process, the operator can view the progress and torque value of bolt tightening in real time through the display screen connected to the counter module; when the tightening torque of a bolt does not reach the preset value, the counter module will issue an alarm to prompt the operator to check and adjust; this design not only improves construction efficiency, but also further ensures the quality and safety of bolt tightening.

[0049] At the same time, the timing counter device 2 in this embodiment also has a data uploading function; construction personnel can upload the data in the timing counter device 2 to a cloud server or a local computer wirelessly or wiredly for further data analysis and processing; this helps the construction team to better grasp the construction quality and progress, and promptly discover and solve problems.

[0050] Through the implementation of the above embodiments, it has been successfully verified that the present invention has modified the hydraulic wrench by adding a timing counter device 2, thereby realizing the precise control and recording of the tightening process of high-strength bolts for offshore wind power. This design not only avoids the phenomenon of missing bolts, but also improves the construction quality and efficiency, providing a strong guarantee for the safe development of the offshore wind power industry.

[0051] In the preferred scheme, the hydraulic wrench body 1 is provided with a limit position for the rotation of the sleeve torque value, and the timing counter module 2 can be detachably installed at the limit position; the above arrangement enables the staff to flexibly install or remove the timing counter module 2 according to work requirements to record the number of rotations of the sleeve torque value, which is convenient for subsequent data analysis and maintenance, and improves the convenience and practicality of the use of the hydraulic wrench.

[0052] In the preferred scheme, the counter module of the timing counter device 2 adopts the counting method of accumulation or accumulation, and judges whether the torque process of the bolt tightening construction is completed by observing whether the counter is cleared or reaches the preset threshold, thereby avoiding the omission of bolts; the above settings effectively improve the accuracy and efficiency of the bolt tightening operation; in addition, the device also has an automatic alarm function, when the torque process is abnormal or timed out and not completed, it can immediately issue a warning to ensure construction quality and safety.

[0053] In the preferred scheme, the counter module includes a counter body and a display screen, the counter body is connected to the limit of the hydraulic wrench body 1, and the display screen is used to display the count value of the counter body; the above setting can intuitively monitor the number of times the hydraulic wrench is used to ensure that the maintenance and maintenance of the equipment are carried out in time. At the same time, the installation position of the counter module is reasonable and does not affect the normal operation of the hydraulic wrench body 1.

[0054] In the preferred scheme, the counter module also includes a reset button, which is used to reset the count value of the counter body before each bolt tightening construction begins; the above setting ensures the accuracy of each operation count, avoids the interference of the previous operation count on the current operation, improves the practicality and reliability of the counter module, and provides strong support for the refined management of bolt tightening construction.

[0055] In the preferred scheme, the counter module has a preset threshold setting function, and the preset threshold is determined according to the total number of high-strength connecting bolts between the wind power flanges; the above setting can automatically trigger an alarm when the number of bolts reaches the preset threshold, reminding maintenance personnel to check or replace the bolts, effectively preventing safety accidents caused by loose or broken bolts, and ensuring the stability and safety of wind power equipment operation.

[0056] In the preferred solution, the counter module is an electronic counter or a mechanical counter, which generates a corresponding counting signal according to the action of the hydraulic wrench body 1; the above setting can ensure that the counter module accurately records the number of times the hydraulic wrench body 1 is used, providing reliable data support for equipment maintenance and management, while improving work efficiency and safety.

[0057] In the preferred solution, the control module sends out prompt signals through sound and light alarms, display screens, etc.; the above settings can promptly remind operators to pay attention to equipment status or abnormal conditions. At the same time, the control module also has a remote communication function, which can send alarm information to a designated terminal, so that managers can respond quickly and handle problems.

[0058] The preferred solution also includes an intelligent control system, which is connected to the timing counter device 2 and is used to remotely monitor and automatically control the working status of the hydraulic wrench; the above settings not only greatly improve the working efficiency, but also realize the precise management of the wrench working process; the intelligent control system can also feedback data in real time, so that users can adjust strategies in time to ensure that the hydraulic wrench is always maintained in the best working state.

[0059] In the preferred solution, when applying tightening torque to the bolts in Step 2, the hydraulic wrench body 1 tightens the bolts using the cross diagonal method, and maintains continuity during the entire high-strength bolt construction period, first completing the tightening of all bolts with 50% torque, and then tightening with 100% torque; the above settings ensure that the bolts are evenly stressed, avoid stress concentration and bolt damage caused by improper tightening sequence, and improve construction efficiency and the stability and safety of the overall structure; at the same time, the bolt tightening status is monitored in real time to ensure that each step reaches the torque value required by the design.

[0060] In summary, the counter hydraulic wrench for preventing bolt missing in offshore wind power and the use method thereof proposed in the present invention successfully solve the problems of low accuracy and easy missing of bolts in the prior art of bolt tightening operations, and provide a novel and effective anti-missing technology for the tightening process of high-strength connecting bolts in offshore wind power; by innovatively installing a timing counter device 2 at the limit position of the torque value rotation of the hydraulic wrench body 1, the scheme realizes the accurate counting of the bolt tightening process; this counting method adopts an accumulation or subtraction mechanism, so that construction personnel can intuitively observe the number of bolts tightened, thereby effectively avoiding the phenomenon of bolt missing; this technical innovation is a breakthrough in the field of offshore wind power, and it overcomes the problem that it is difficult to find bolt missing in traditional random inspection methods. The limitations of wind power generation have significantly improved the reliability and safety of wind turbine installation. At the same time, the scheme fully considers the actual situation of offshore wind power bolt tightening, such as the large number of bolts and large size, and adopts the cross diagonal method to tighten twice, ensuring the continuity and accuracy of the entire high-strength bolt construction period. The use of the counter not only improves the construction efficiency and quality, but also significantly reduces the safety hazards caused by bolt omissions during wind power installation and operation and maintenance, and extends the operating stability and service life of the wind turbine. In addition, the scheme can also save wind power companies the maintenance and replacement costs caused by loose bolts, which has important economic and social benefits. Therefore, the counter hydraulic wrench and its use method have broad application prospects and promotion value in the field of offshore wind power.

Claims

1. A counter hydraulic wrench for preventing bolt leakage in offshore wind power, characterized by: The invention comprises a hydraulic wrench body (1) and a timing counter module (2). The timing counter module (2) is mounted on the hydraulic wrench body (1) and comprises a counter module, a timing module and a control module. The counter module is used to record the number of actions of the hydraulic wrench body (1) each time it works. The timing module is used to set the working time or working cycle of the counter. The control module is used to receive signals from the counter module and the timing module and to send a prompt signal when a predetermined condition is reached.

2. The counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 1 is characterized in that: The hydraulic wrench body (1) is provided with a limit position for the rotation of the sleeve torque value, and a timing counter module (2) is detachably mounted on the limit position.

3. The counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 2 is characterized in that: The counter module of the timing counter device (2) counts in an accumulative or accumulative manner, and by observing whether the counter is cleared or reaches a preset threshold, it is determined whether the torque process of the bolt tightening construction is completed, thereby avoiding bolt leakage.

4. The counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 3 is characterized in that: The counter module comprises a counter body and a display screen, the counter body being connected to a limit position of the hydraulic wrench body (1), and the display screen being used to display the count value of the counter body.

5. The counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 4 is characterized in that: The counter module also includes a reset button, which is used to reset the count value of the counter body before each bolt tightening construction begins.

6. The counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 5 is characterized in that: The counter module has a preset threshold setting function, and the preset threshold is determined according to the total number of high-strength connecting bolts between wind turbine flanges; the counter module is an electronic counter or a mechanical counter, and generates a corresponding counting signal according to the action of the hydraulic wrench body (1).

7. The counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 6 is characterized in that: The control module sends out a prompt signal through sound and light alarms, display screens, etc.

8. The counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 7 is characterized in that: It also includes an intelligent control system, which is connected to the timing counter device (2) by signal and is used for remote monitoring and automatic control of the working state of the counter hydraulic wrench.

9. A method for using the counter hydraulic wrench for preventing bolt leakage in offshore wind power according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: Step 1: Put the working head of the counter hydraulic wrench into contact with the bolt head to be tightened; Step 2: Operate the hydraulic wrench body (1) so that the working head applies tightening torque to the bolt; Step 3: The counter module records the number of each tightening action; Step 4: The timing module monitors the counting process according to the set working time or working cycle; Step 5: When the predetermined conditions are met, the control module sends a prompt signal to remind the operator to pay attention to the number of bolts.

10. The method for using the counter hydraulic wrench for preventing bolt leakage in offshore wind power according to claim 9, characterized in that: When applying tightening torque to the bolts in Step 2, the hydraulic wrench body (1) tightens the bolts using the cross diagonal method, and this method is maintained continuously during the entire high-strength bolt construction period, first completing the tightening of all bolts at 50% torque, and then tightening at 100% torque.

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