Flywheel cover lifting device and lifting method

Abstract

The application provides a flywheel cover lifting device and a lifting method, belonging to the technical field of nuclear power unit maintenance, and comprises a lifting platform vertically arranged on a lifting base. When the lifting platform rises along the height direction of the lifting base, the flywheel cover is synchronously lifted by adjusting members, so that the flywheel cover can be vertically and smoothly lifted. A balance adjusting unit independently adjusts each hanging point of the flywheel cover through multiple adjusting members, so that the flywheel cover is in a horizontal state before being lifted, the shaking and imbalance of the flywheel cover during hoisting are reduced, the accuracy and stability of the flywheel cover during lifting are ensured, and the subsequent fine work such as sealing pad inspection, flywheel radial / axial gap inspection and flywheel pawl flaw detection can be smoothly carried out. Meanwhile, the difficulty of disassembly and assembly and the damage risk of surrounding equipment caused by the deflection of the flywheel cover are eliminated, a large amount of time and energy is not needed to repeatedly adjust the position and angle, and the operation complexity, labor intensity and safety risk are greatly reduced.

Description

Technical Field

[0001] This application belongs to the field of nuclear power unit maintenance technology, specifically relating to a flywheel cover lifting device and lifting method. Background Technology

[0002] In the safe and stable operation of nuclear power units, the maintenance and protection of the main pump and its motor are crucial. As a critical subsystem, the flywheel cover of the main pump motor carries multiple functions, including flywheel protection, thermal management (built-in heater), and mechanical seal. Its regular inspection and maintenance directly affect the reliability and lifespan of the unit. However, the current maintenance process for the flywheel cover—disassembling and lifting a flywheel cover weighing up to 400 kg—still relies on traditional methods of manual scaffolding erection and manual hoisting. This method has revealed significant technical limitations and systemic defects in long-term practice, severely restricting overhaul efficiency, operational safety, and maintenance quality.

[0003] During the lifting of the electric flywheel cover, its significant weight makes it prone to tilting, increasing the difficulty of disassembling and assembling the flywheel cover and potentially causing damage to the flywheel cover and surrounding equipment. In particular, lifting heavy flywheel covers can easily lead to swaying and imbalance, requiring considerable time and effort to adjust its position and angle to prevent accidental collisions and equipment damage. This poses a significant threat to operator safety and makes it difficult to guarantee the accuracy and stability of the flywheel cover during lifting. Furthermore, it severely hinders subsequent precision work such as gasket inspection, flywheel radial / axial clearance inspection, and flywheel pawl flaw detection, making it difficult to obtain accurate test data. This issue urgently needs to be addressed. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, a first aspect of the present invention provides a flywheel cover lifting device.

[0006] A second aspect of the present invention provides a method for lifting a flywheel cover.

[0007] In view of this, a flywheel cover lifting device is provided according to a first aspect of the embodiments of this application, comprising: A lifting base is mounted on the flywheel and extends along the axial direction of the flywheel. The lifting platform is set perpendicular to the lifting base, and the lifting platform moves up and down on the lifting base along the height direction of the lifting base; The balance adjustment unit includes an adjustment component, which is set perpendicular to the lifting platform. The first end of the adjustment component is connected to the lifting platform, and the second end of the adjustment component is attached to the flywheel cover.

[0008] In one feasible implementation, the flywheel cover lifting device further includes: The base plate is located below the lifting base and is fixedly connected to the lifting base. The adjustment assembly includes several adjustment feet, which are evenly arranged around the circumference of the lifting base and extend along the axial direction of the flywheel. The first end of the adjustment foot is threaded to the base plate, and the second end of the adjustment foot abuts against the flywheel.

[0009] In one feasible embodiment, the adjusting members are evenly arranged along the circumference of the flywheel cover, and the adjusting members include: An adjustment section is installed perpendicular to the lifting platform, and the first end of the adjustment section is threadedly connected to the lifting platform. The connecting part has its first end threadedly connected to the second end of the adjusting part; The hook has its first end threadedly connected to the second end of the connecting part, and the second end of the hook is attached to the flywheel cover.

[0010] In one feasible implementation, the lifting base includes: The shell is a hollow cavity; The lead screw extends along the axial direction of the flywheel, and its two ends pass through the housing, with the lead screw rotatably connected to the housing. A threaded block is fitted onto the outside of the lead screw, and the threaded block is threadedly connected to the lead screw. The guide groove is formed on the side wall of the shell along the height direction of the shell; The lifting platform is mounted on the outside of the threaded block, and the lifting platform is rotatably connected to the threaded block. The lifting platform moves within the guide groove. The handwheel is located on the top of the housing and is fixedly connected to the lead screw so as to drive the lead screw to rotate.

[0011] In one feasible implementation, the lifting base further includes: The motor is connected to the housing. The drive gear is mounted on the outside of the motor's output shaft so that the output shaft can drive the drive gear to rotate. Driven gear meshes with driving gear. Driven gear is located at the bottom of housing and is mounted on the outside of lead screw to drive lead screw to rotate. Limit switches are installed on the wall of the guide groove and are electrically connected to the motor.

[0012] According to a second aspect of the embodiments of this application, a flywheel cover lifting method is provided, applied to a flywheel cover lifting device as described in any of the above technical solutions. The flywheel cover lifting method includes: Install the lifting base on the flywheel and attach the adjusting parts to the flywheel cover; Adjust the adjusting components to level the flywheel cover and eliminate any deviation. Control the lifting platform to move along the height direction of the lifting base, so as to drive the adjusting components and flywheel cover to rise synchronously; Once the flywheel cover reaches the predetermined height, the lifting platform will stop rising. Use support rods to support and secure the flywheel cover.

[0013] In one feasible implementation, the flywheel cover lifting method further includes: Collect data on the lifting height and / or load weight of the lifting platform; The collected data is transmitted to the display screen and displayed. Speed ​​data is collected at regular intervals, and the speed changes under different loads are distinguished and displayed on the screen using different colored lines.

[0014] In one feasible implementation, controlling the lifting platform to move along the height direction of the lifting base to drive the adjusting component and flywheel cover to rise synchronously includes: The handwheel is operated to drive the lead screw to rotate, which in turn drives the lifting platform to rise and lift the flywheel cover.

[0015] In one feasible implementation, controlling the lifting platform to move along the height direction of the lifting base to drive the adjusting component and flywheel cover to rise synchronously also includes: Operate the control handle to set parameters and start the motor. The motor drives the lead screw to rotate, which in turn lifts the lifting platform and raises the flywheel cover.

[0016] In one feasible implementation, when the flywheel cover reaches the predetermined height, the lifting platform contacts the limit switch, and the limit switch controls the motor to stop running.

[0017] The flywheel cover lifting device and lifting method of this application have the following advantages compared with the prior art: The flywheel cover lifting device provided in this application includes a lifting base, a lifting platform, and a balance adjustment unit. The flywheel serves as the mounting base for the lifting device. The lifting platform is perpendicular to the lifting base. As the lifting platform rises along the height of the lifting base, the flywheel cover rises synchronously through adjusting components, enabling the flywheel cover to be lifted vertically and smoothly. The balance adjustment unit independently adjusts each attachment point of the flywheel cover through multiple adjusting components, ensuring that the flywheel cover is in a horizontal state before lifting. This reduces swaying and imbalance during the lifting process, ensuring the accuracy and stability of the flywheel cover during lifting. This allows for smooth subsequent fine work such as gasket inspection, flywheel radial / axial clearance inspection, and flywheel pawl flaw detection, and enables the acquisition of accurate test data. Simultaneously, it eliminates the increased difficulty of disassembly and assembly and the risk of damage to surrounding equipment caused by flywheel cover misalignment. It eliminates the need for extensive time and effort to repeatedly adjust the position and angle, significantly reducing operational complexity, labor intensity, and safety risks. It also significantly reduces capital, time, and labor costs, providing an efficient, safe, and reliable specialized tool for the daily maintenance and emergency repair of the main pump flywheel cover in nuclear power plants. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic structural diagram of the first angle of a flywheel cover lifting device according to an embodiment of this application; Figure 2 A schematic structural diagram of the second angle of a flywheel cover lifting device according to an embodiment of this application; Figure 3 A schematic structural diagram of the first angle of the starting position of a flywheel cover lifting device according to an embodiment of this application; Figure 4 A schematic structural diagram of the second angle of the starting position of the flywheel cover lifting device according to an embodiment of this application; Figure 5 A schematic structural diagram of the lifting position of a flywheel cover lifting device according to an embodiment of this application; Figure 6 A schematic flowchart illustrating the steps of a flywheel cover lifting method according to an embodiment of this application; in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows: 11. Lifting base; 12. Lifting platform; 13. Adjustable parts; 14. Base plate; 15. Adjustable feet; 16. Flywheel; 17. Flywheel cover; 18. Support rod; 111. Housing; 112. Lead screw; 113. Threaded block; 114. Guide groove; 115. Handwheel; 116. Motor; 117. Drive gear; 118. Driven gear; 119. Limit switch; 131. Adjustment part; 132. Connecting part; 133. Hook. Detailed Implementation

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0023] like Figures 1 to 5As shown, according to a first aspect of the embodiments of this application, a flywheel cover lifting device is proposed, comprising: a lifting base 11, a lifting platform 12, and a balance adjustment unit; the lifting base 11 is disposed on a flywheel 16 and extends along the axial direction of the flywheel 16; the lifting platform 12 is disposed perpendicular to the lifting base 11 and moves up and down on the lifting base 11 along the height direction of the lifting base 11; the balance adjustment unit includes an adjustment member 13, which is disposed perpendicular to the lifting platform 12, with a first end of the adjustment member 13 connected to the lifting platform 12 and a second end of the adjustment member 13 hooked to the flywheel cover 17.

[0024] The flywheel cover lifting device provided in this embodiment includes a lifting base 11, a lifting platform 12, and a balance adjustment unit. The flywheel 16 serves as the mounting base for the lifting device. The lifting platform 12 is perpendicular to the lifting base 11. When the lifting platform 12 rises along the height direction of the lifting base 11, it drives the flywheel cover 17 to rise synchronously via adjusting components 13, enabling the flywheel cover 17 to be lifted vertically and smoothly. The balance adjustment unit independently adjusts each attachment point of the flywheel cover 17 through multiple adjusting components 13, ensuring that the flywheel cover 17 is in a horizontal state before lifting, reducing swaying and imbalance during the lifting process, and ensuring... The accuracy and stability of the flywheel cover 17 during the lifting process ensures the smooth execution of subsequent delicate tasks such as gasket inspection, radial / axial clearance inspection of the flywheel 16, and flaw detection of the flywheel 16 pawl, and enables the acquisition of accurate test data. At the same time, it eliminates the increased difficulty of disassembly and assembly and the risk of damage to surrounding equipment caused by the misalignment of the flywheel cover 17. It eliminates the need to spend a lot of time and effort repeatedly adjusting the position and angle, greatly reducing the complexity of operation, labor intensity and safety risks, and significantly reducing capital, time and labor costs. It provides an efficient, safe and reliable special tool for the daily maintenance and emergency repair of the flywheel cover 17 of the main pump of the nuclear power plant.

[0025] It should be noted that the flywheel 16 of the main pump motor has a flat surface at the top, and the entire device is vertically connected to the stationary flywheel 16 structure. The lifting base 11 is detachably locked to the center position of the flywheel 16 by locking components to ensure the stability of the lifting device.

[0026] Furthermore, the adjusting component 13 is arranged parallel to the axial direction of the flywheel 16, and the adjusting component 13 is vertically arranged directly above the corresponding attachment point of the flywheel cover 17, so that the lifting force of the flywheel cover 17 is generated only in the vertical direction, and the angle between the gravity of the flywheel cover 17 and the lifting force is 180°, reducing the component force generated in other directions during the lifting process of the flywheel cover 17, and further reducing the swaying and imbalance of the flywheel cover 17 during the lifting process.

[0027] like Figure 1 and Figure 2As shown, in one feasible embodiment, the flywheel cover lifting device further includes: a base plate 14 and an adjustment assembly; the base plate 14 is disposed below the lifting base 11 and is fixedly connected to the lifting base 11; the adjustment assembly includes a plurality of adjustment feet 15, the adjustment feet 15 are evenly arranged along the circumference of the lifting base 11, the adjustment feet 15 extend along the axial direction of the flywheel 16, the first end of the adjustment foot 15 is threadedly connected to the base plate 14, and the second end of the adjustment foot 15 abuts against the flywheel 16.

[0028] In this technical solution, a base plate 14 is installed below the lifting base 11, and several adjusting feet 15 are evenly arranged around the circumference of the lifting base 11. The first end of the adjusting foot 15 is threaded to the base plate 14, and the second end of the adjusting foot 15 abuts against the flywheel 16, using the flywheel 16 to support the lifting device. The evenly arranged multiple adjusting feet 15 can disperse the weight of the device and the load generated during the lifting process, avoid local force concentration, and improve the overall stability of the lifting device. By rotating the adjusting foot 15, the thread engagement length can be adjusted to fine-tune the extension length of the adjusting foot 15, thereby enabling adaptive adjustment according to the actual flatness of the flywheel 16 end face. This ensures that the lifting base 11 remains perpendicular to the axis of the flywheel 16, avoiding the problem of skewness and shaking of the flywheel cover 17 during the lifting process due to the tilt of the lifting device installation. It also ensures the straightness of the lifting trajectory of the flywheel cover 17 and the force balance of the flywheel cover 17, further reducing the shaking and imbalance of the flywheel cover 17 during the lifting process, and improving the accuracy and stability of the flywheel cover 17 during the lifting process.

[0029] In some examples, the adjusting foot 15 includes a threaded rod, and the base plate 14 has a threaded hole. The threaded rod of the adjusting foot 15 passes through the threaded hole on the base plate 14 and is threadedly connected, so that the base plate 14 can be leveled by turning the adjusting foot 15, thereby leveling the lifting base 11, and thus making the lifting platform 12 rise and fall perpendicular to the flywheel 16 axis. A nut is provided on the top of the base plate 14, and the nut is threadedly connected to the threaded rod of the adjusting foot 15 to prevent the threaded connection of the adjusting foot 15 from loosening.

[0030] like Figure 1 and Figure 2 As shown, in one feasible embodiment, the adjusting member 13 is evenly arranged around the flywheel cover 17. The adjusting member 13 includes: an adjusting part 131, a connecting part 132, and a hook 133. The adjusting part 131 is arranged perpendicular to the lifting platform 12, and the first end of the adjusting part 131 is threadedly connected to the lifting platform 12. The first end of the connecting part 132 is threadedly connected to the second end of the adjusting part 131. The first end of the hook 133 is threadedly connected to the second end of the connecting part 132, and the second end of the hook 133 is hooked on the flywheel cover 17.

[0031] In this technical solution, the balance adjustment unit includes several adjustment components 13, which are evenly arranged around the circumference of the flywheel cover 17. Operators can independently and precisely adjust the overall length of each adjustment component 13 by rotating the adjustment part 131, the connecting part 132, and / or the hook 133. This allows for minute adjustments to the height of each lifting point of the flywheel cover 17, overcoming the tilt caused by uneven weight distribution or errors in the lifting point position. Four hooks 133 are simultaneously attached to the flywheel cover 17, ensuring balanced force distribution across multiple points. This keeps the flywheel cover 17 horizontal before lifting, reducing the risk of tilting during subsequent lifting. This ensures the accuracy of subsequent precision operations such as gasket inspection and flywheel 16 clearance measurement, avoiding potential damage to the flywheel cover 17 and surrounding equipment due to tilting, and reducing the significant time and effort spent on repeatedly adjusting position and angle.

[0032] In some examples, threaded holes are provided at both ends of the connecting part 132, and external threads are provided on the outer wall of the adjusting part 131. The hook 133 includes a threaded rod. The adjusting part 131 passes through the threaded hole at one end of the connecting part 132 and is threadedly connected. The threaded rod of the hook 133 passes through the threaded hole at one end of the connecting part 132 and is threadedly connected. By turning the adjusting part 131, the connecting part 132, and / or the hook 133, the overall length of the adjusting component 13 is adjusted so that the flywheel cover 17 can be leveled after the hook 133 is connected to the flywheel cover 17. At the same time, the angle of the hook 133 can be adjusted to facilitate quick engagement between the hook 133 and the flywheel cover 17. After the hook 133 is stably engaged with the flywheel cover 17, it is fixed and locked. Then, each adjusting component 13 is adjusted in sequence to fine-tune the levelness of the flywheel cover 17, so that the flywheel cover 17 is balanced to eliminate deviation.

[0033] like Figure 1 and Figure 2 As shown, in one feasible embodiment, the lifting base 11 includes: a housing 111, a lead screw 112, a threaded block 113, a guide groove 114, and a handwheel 115; the housing 111 is a hollow cavity; the lead screw 112 extends axially along the flywheel 16, with both ends of the lead screw 112 passing through the housing 111, and the lead screw 112 is rotatably connected to the housing 111; the threaded block 113 is fitted on the outside of the lead screw 112, and the threaded block 113 is threadedly connected to the lead screw 112; the guide groove 114 is formed on the side wall of the housing 111 along the height direction of the housing 111; the lifting platform 12 is fitted on the outside of the threaded block 113, and the lifting platform 12 is rotatably connected to the threaded block 113, and the lifting platform 12 moves within the guide groove 114; the handwheel 115 is disposed above the housing 111, and the handwheel 115 is fixedly connected to the lead screw 112, so as to drive the lead screw 112 to rotate through the handwheel 115.

[0034] In this technical solution, when the operator turns the handwheel 115, the rotational motion of the lead screw 112 is converted into the linear lifting motion of the threaded block 113 and the lifting platform 12 along the guide groove 114 through the threaded engagement, thereby driving the flywheel cover 17 to rise and fall, allowing for manual fine-tuning of the height of the flywheel cover 17. The guide groove 114 serves to limit and guide the lifting platform 12, preventing circumferential rotation during lifting and ensuring the verticality and stability of the lifting of the flywheel cover 17. The handwheel 115 drive method does not rely on an external power source, enabling normal lifting operations even when power is interrupted or on-site power supply is unavailable. This is particularly suitable for the complex and variable operating environment of nuclear power plants, improving the convenience and practicality of the lifting device.

[0035] In some instances, bearings are installed at both ends of the lead screw 112, with the two bearings respectively embedded at both ends of the housing 111 to provide rotational support for the lead screw 112, enabling the lead screw 112 to rotate flexibly.

[0036] like Figure 1 and Figure 2 As shown, in one feasible embodiment, the lifting base 11 further includes: a motor 116, a drive gear 117, a driven gear 118, and a limit switch 119; the motor 116 is connected to the housing 111; the drive gear 117 is mounted on the outside of the output shaft of the motor 116 to drive the drive gear 117 to rotate through the output shaft; the driven gear 118 meshes with the drive gear 117, the driven gear 118 is located below the housing 111, and the driven gear 118 is mounted on the outside of the lead screw 112 to drive the lead screw 112 to rotate through the driven gear 118; the limit switch 119 is located on the groove wall of the guide groove 114, and the limit switch 119 is electrically connected to the motor 116.

[0037] In this technical solution, the motor 116 is mounted on the housing 111. The output shaft of the motor 116 meshes with the driven gear 118 mounted on the lead screw 112 via the driving gear 117, thereby driving the lead screw 112 to rotate and automatically lift the flywheel cover 17, thus improving the lifting efficiency of the flywheel cover 17. Furthermore, the gear transmission method features precise transmission ratio, strong load-bearing capacity, and smooth operation, converting the high-speed, low-torque output of the motor 116 into a low-speed, high-torque output, thus meeting the requirement for smooth lifting of the flywheel cover 17. A limit switch 119 is installed on the wall of the guide groove 114 and electrically connected to the motor 116. When the lifting platform 12 rises to a preset height, it touches the limit switch 119, which immediately cuts off the power to the motor 116, stopping its operation and preventing the flywheel cover 17 from exceeding its safe travel range. This ensures the safety of the equipment and operators. The automatic stop function of the limit switch 119 prevents safety hazards caused by operational errors, thereby reducing labor costs and safety risks.

[0038] In some examples, the motor 116 is controlled by a control handle, allowing operators to control the start / stop and operating parameters of the motor 116 simply by using the control handle, thus reducing labor intensity.

[0039] like Figure 6 As shown, according to a second aspect of this application, a flywheel cover lifting method is proposed, applied to a flywheel cover lifting device as described in any of the above technical solutions. The flywheel cover lifting method includes: Step 100: Install the lifting base on the flywheel and attach the adjusting piece to the flywheel cover; Step 200: Adjust the adjusting components to level the flywheel cover and eliminate any deviation; Step 300: Control the lifting platform to move along the height direction of the lifting base so as to drive the adjusting components and flywheel cover to rise synchronously; Step 400: Once the flywheel cover reaches the predetermined height, stop the lifting platform from rising; Step 500: Use support rods to support and secure the flywheel cover.

[0040] When lifting the flywheel cover using the flywheel cover lifting method provided in this application embodiment, the lifting base is first installed on the flywheel. Then, each adjusting component is hooked onto the flywheel cover. By adjusting the adjusting components, the levelness of the flywheel cover is adjusted to eliminate deviations before lifting. This ensures that the flywheel cover maintains a horizontal posture throughout the ascent, avoiding jamming or collisions caused by flywheel cover tilting. During lifting, the lifting platform is controlled to rise along the height direction of the lifting base, driving the adjusting components and flywheel cover to rise synchronously, ensuring a vertical and stable lift of the flywheel cover. Once the flywheel cover reaches the predetermined height, it is supported and fixed by the support rod, transferring the load from the lifting device to the support rod. This ensures the safety of subsequent inspection operations and facilitates the disassembly and removal of the lifting device. The entire method is standardized and easy to operate, shortening the operation time for flywheel cover maintenance and enabling rapid response in emergencies. It solves the problems of excessive professional expertise and personnel, complex work content, and excessively long construction periods in traditional solutions, while also reducing capital, time, and labor costs.

[0041] like Figure 1 As shown, in one feasible implementation, the flywheel cover lifting method further includes: Collect data on the lifting height and / or load weight of the lifting platform; The collected data is transmitted to the display screen and displayed. Speed ​​data is collected at regular intervals, and the speed changes under different loads are distinguished and displayed on the screen using different colored lines.

[0042] In this technical solution, by collecting real-time data on the lifting height and / or load weight of the lifting platform during the lifting process and displaying the collected data on a screen, operators can intuitively grasp the real-time operating status of the lifting device, facilitating timely detection and adjustment of abnormalities, thus improving the controllability and safety of the operation. Simultaneously, speed data is collected at regular intervals, and speed changes under different loads are displayed using different colored line graphs, allowing operators to clearly compare speed curves under different load conditions, judge the smoothness of the lifting process, and provide accurate data support for subsequent maintenance assessments. Quantitative monitoring of the flywheel cover lifting process transforms the accuracy and stability of the lifting process from relying on operator experience to data-driven, visualized control. This provides a reliable data foundation for subsequent detailed work such as gasket inspection, flywheel clearance measurement, and pawl flaw detection, ensuring the accuracy of the test data.

[0043] In some examples, the data transmission rate is 1Mbps to 3Mbps, and the transmission delay should be controlled within ±0.5 seconds. The data transmission performance is monitored by a network analyzer to ensure that the data is displayed on the control handle's screen in a timely and accurate manner.

[0044] like Figure 1 As shown, in one feasible implementation, controlling the lifting platform to move along the height direction of the lifting base to drive the adjusting component and flywheel cover to rise synchronously includes: The handwheel is operated to drive the lead screw to rotate, which in turn drives the lifting platform to rise and lift the flywheel cover.

[0045] In this technical solution, the flywheel cover is manually lifted by rotating a lead screw via a handwheel, which in turn raises the lifting platform. The manual mode is independent of power supply, allowing normal operation even in situations with power outages, motor failures, or when extremely precise control of the lifting position is required, ensuring the applicability and reliability of the device. Operators can directly control the lifting platform's displacement by turning the handwheel; the operation is intuitive and responsive, making it particularly suitable for delicate operation scenarios requiring precise alignment. It facilitates quick response to emergencies where rapid reaction is not possible, while also providing a reliable backup for the electric mode. This solution balances high-efficiency lifting under normal operating conditions with the need for fine adjustments in special circumstances, achieving full-scenario operational coverage.

[0046] like Figure 1 As shown, in one feasible implementation, controlling the lifting platform to move along the height direction of the lifting base to drive the adjusting component and flywheel cover to rise synchronously, further includes: Operate the control handle to set parameters and start the motor. The motor drives the lead screw to rotate, which in turn lifts the lifting platform and raises the flywheel cover.

[0047] In this technical solution, parameters are set and the motor is started by operating the control handle. The motor automatically drives the lead screw to rotate, causing the lifting platform to rise smoothly and lift the flywheel cover. This eliminates the need for continuous force from the operator, significantly reducing the labor intensity of manual work. The operator can adjust parameters such as the lifting speed at any time via the control handle, allowing for flexible control of the lifting process. This ensures the smoothness and controllability of the flywheel cover's lifting action, while also improving work efficiency. A single person can complete the flywheel cover lifting operation, reducing manpower and working time, and minimizing safety hazards caused by poor coordination. This eliminates the need for large-scale personnel and complex equipment preparation for flywheel cover maintenance.

[0048] like Figure 1 As shown, in one feasible implementation, when the flywheel cover reaches a predetermined height, the lifting platform contacts the limit switch, and the limit switch controls the motor to stop running.

[0049] In this technical solution, during automatic lifting, once the flywheel cover reaches the predetermined height, the lifting platform contacts the limit switch, which immediately controls the motor to stop running. This achieves an automatic stop function upon reaching the lifting position, eliminating the need for manual stopping by the operator. This eliminates the problem of inaccurate height due to operator judgment errors and avoids equipment damage or safety accidents caused by the lifting platform exceeding its travel range due to untimely operation. It solves the problem of traditional solutions requiring manual judgment of the lifting point position and lifting height, which involves significant human error. By replacing manual judgment with automated control, the risk of equipment damage and safety accidents caused by operational errors is eliminated, further ensuring the personal safety of operators and the integrity of the equipment.

[0050] The flywheel cover lifting method provided in this application embodiment, since it is applied to the flywheel cover lifting device of any of the above-described technical solutions, therefore the flywheel cover lifting method has all the beneficial effects of the flywheel cover lifting device of the above-described technical solutions.

[0051] It will be readily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

[0052] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A flywheel cover lifting device, characterized in that, The flywheel cover lifting device includes: A lifting base is mounted on a flywheel and extends along the axial direction of the flywheel; A lifting platform is provided, which is perpendicular to the lifting base, and the lifting platform moves up and down on the lifting base along the height direction of the lifting base; A balance adjustment unit includes an adjustment component, which is arranged perpendicular to the lifting platform. The first end of the adjustment component is connected to the lifting platform, and the second end of the adjustment component is attached to the flywheel cover.

2. The flywheel cover lifting device according to claim 1, characterized in that, The flywheel cover lifting device also includes: A base plate is disposed below the lifting base and is fixedly connected to the lifting base; An adjustment assembly includes several adjustment feet evenly arranged around the circumference of the lifting base and extending along the axial direction of the flywheel. The first end of each adjustment foot is threadedly connected to the base plate, and the second end of each adjustment foot abuts against the flywheel.

3. The flywheel cover lifting device according to claim 1, characterized in that, The adjusting members are evenly arranged along the circumference of the flywheel cover, and the adjusting members include: An adjustment section is provided, which is perpendicular to the lifting platform, and the first end of the adjustment section is threadedly connected to the lifting platform. A connecting part, wherein the first end of the connecting part is threadedly connected to the second end of the adjusting part; The hook has a first end threadedly connected to the second end of the connecting part, and the second end of the hook is attached to the flywheel cover.

4. The flywheel cover lifting device according to claim 1, characterized in that, The lifting base includes: The housing is a hollow cavity; A lead screw extends axially along the flywheel, with both ends of the lead screw passing through the housing, and the lead screw being rotatably connected to the housing; A threaded block, which is fitted onto the outside of the lead screw and is threadedly connected to the lead screw; A guide groove is formed on the side wall of the housing along the height direction of the housing; The lifting platform is fitted onto the outside of the threaded block, the lifting platform is rotatably connected to the threaded block, and the lifting platform moves within the guide groove; A handwheel is disposed above the housing and is fixedly connected to the lead screw to drive the lead screw to rotate.

5. A flywheel cover lifting device according to claim 4, characterized in that, The lifting base also includes: The motor is connected to the housing; A drive gear is mounted on the outside of the output shaft of the motor so as to drive the drive gear to rotate through the output shaft; Driven gear, which meshes with the driving gear, is located below the housing and is fitted onto the outside of the lead screw to drive the lead screw to rotate; A limit switch is disposed on the wall of the guide groove and is electrically connected to the motor.

6. A method for lifting a flywheel cover, characterized in that, The flywheel cover lifting device as described in any one of claims 1 to 5, wherein the flywheel cover lifting method comprises: Install the lifting base on the flywheel and attach the adjusting parts to the flywheel cover; Adjust the adjusting component to adjust the levelness of the flywheel cover and eliminate deviation; The lifting platform is controlled to move along the height direction of the lifting base, so as to drive the adjusting component and the flywheel cover to rise synchronously; Once the flywheel cover reaches the predetermined height, the lifting platform stops rising. The flywheel cover is supported and fixed using a support rod.

7. A method for lifting a flywheel cover according to claim 6, characterized in that, The flywheel cover lifting method further includes: Collect data on the lifting height and / or load weight of the lifting platform; The collected data is transmitted to the display screen and displayed. Speed ​​data is collected every first hour, and the speed changes under different loads are distinguished and displayed on the display screen using different colored lines.

8. A method for lifting a flywheel cover according to claim 6, characterized in that, The control lifting platform moves along the height direction of the lifting base to drive the adjusting component and the flywheel cover to rise synchronously, including: The handwheel is operated to drive the lead screw to rotate, thereby raising the lifting platform and lifting the flywheel cover.

9. A method for lifting a flywheel cover according to claim 6, characterized in that, The control lifting platform moves along the height direction of the lifting base to drive the adjusting component and the flywheel cover to rise synchronously, and also includes: The operator sets the parameters using the control handle and starts the motor. The motor drives the lead screw to rotate, which in turn lifts the lifting platform and raises the flywheel cover.

10. A method for lifting a flywheel cover according to claim 9, characterized in that: When the flywheel cover reaches the predetermined height, the lifting platform contacts the limit switch, and the limit switch controls the motor to stop running.

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