A high-pressure main steam valve disassembly device

Abstract

The present invention discloses a high-pressure main steam valve disassembly device, which relates to the technical field of high-pressure main steam valve disassembly. It includes a main board, a rotary disassembly component, and a disassembly and discharging component. A steering adjustment component is installed in front of the middle of the main board. An azimuth adjustment component is installed outside the front of the steering adjustment component, and a mounting plate is installed at one end of the azimuth adjustment component. The rotary disassembly component is installed on one side in front of the mounting plate, and the rotary disassembly component includes a rotary motor, a rotary shaft, and a rotary frame. A rotary shaft is arranged in the middle of the rotary motor, and a rotary frame is fixed to the top of the rotary shaft. Electric telescopic rods are installed on the inner walls of the five sides of the rotary frame. This high-pressure main steam valve disassembly device can clamp and fix the bolts on the surface of the high-pressure main steam valve and rotate and disassemble them, thereby realizing the disassembly of the high-pressure main steam valve. Moreover, it can conveniently adjust the positions of the rotary frame and the clamping and positioning component, which is applicable to the disassembly of bolts at different positions on the surface of the high-pressure main steam valve, and is relatively flexible to use.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure main steam valve disassembly, and specifically to a high-pressure main steam valve disassembly device. Background Technique

[0002] The high-pressure main steam valve is an important component of a steam turbine. A steam turbine is a type of turbomachine used to convert the thermal energy of a gas into mechanical work. A steam turbine is a thermal turbine that uses steam as the working medium and converts the thermal energy of the steam into mechanical work. Generally, the high-pressure main steam valve of a steam turbine is fastened to the steam chamber with bolts, and it is necessary to disassemble the high-pressure main steam valve during maintenance, so a high-pressure main steam valve disassembly device is required.

[0003] For example, application number: CN113021258A, a disassembly and support device for the threaded ring of a 1000MW steam turbine high-pressure main steam valve, includes a box body device and a rolling device. When in use, at least two points or more of support can be ensured throughout the process of disassembly and assembly of the threaded ring, that is, the support of the support device for the threaded ring wrench, the support of the lifting tool for the threaded ring, and the support of the threaded ring in the valve body part. The support stability is greatly improved. The support device can also be adjusted in six directions: up, down, left, right, front, and back, so that the threaded ring is always in the center position of the valve body during rotation. On the premise of ensuring the safety of the disassembly and assembly work, the timeliness and accuracy of adjustment are greatly improved, and the work efficiency is improved.

[0004] The above-mentioned disassembly and support device for the threaded ring of the steam turbine high-pressure main steam valve currently still has the following deficiencies: The existing device mainly focuses on the support of the threaded ring during the disassembly process of the high-pressure main steam valve, and manual assistance is required for disassembly. It is not convenient to clamp and fix the bolts on the surface of the high-pressure main steam valve and rotate them for disassembly. Therefore, research and improvement are carried out on the existing structure and deficiencies, and a high-pressure main steam valve disassembly device is proposed with the expectation of achieving a more practical value. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the present invention provides a high-pressure main steam valve disassembly device, which solves the problems raised in the above-mentioned background technique.

[0006] The present invention is realized through the following technical solutions:

[0007] A high-pressure main steam valve disassembly device includes a main board, a steering adjustment component, an azimuth adjustment component, a rotary disassembly component, and a disassembly and unloading component;

[0008] The steering adjustment assembly is arranged at the center of the front surface of the main board. A plurality of azimuth adjustment assemblies are arranged along the central circumference of the main board. One end of the azimuth adjustment assembly is rotatably connected to the steering adjustment assembly, and an installation plate is installed at the other end. The rotary disassembly assembly is connected to the installation plate. A reinforcement plate is fixed to the back surface of the main board. The disassembly and unloading assembly is installed around the outside of the reinforcement plate and is used to abut against the side wall of the high-pressure main steam valve;

[0009] The rotary disassembly assembly includes a rotary motor, a rotary frame, and a positioning plate. The rotary motor is fixed on the installation plate, and the rotary frame is fixedly connected to the end of the output shaft of the rotary motor. A plurality of electric telescopic rods are arranged in the rotary frame and are circumferentially distributed. One end of the electric telescopic rod is fixedly connected to the inner wall of the rotary frame, and the piston end is close to the center of the rotary frame. The positioning plate is fixed to the end of the piston rod of the electric telescopic rod.

[0010] Preferably, the main board is connected to a telescopic movement assembly for adjusting the position of the main board. The telescopic movement assembly includes a telescopic frame, a rear plate, and a sliding rail;

[0011] The sliding rail is horizontally installed on the rear plate, the main rod is slidably connected to the sliding rail, one end of the telescopic frame is connected to the rear plate, and the other end is connected to the back surface of the main board.

[0012] Preferably, a support assembly is installed below the telescopic movement assembly. The support assembly includes a support plate, a support bracket, and a weight seat;

[0013] The rear plate is vertically fixed to the top of the support plate, the weight seat is arranged at the bottom of the support, the support bracket is inclined, one end of the support bracket is connected to the weight seat, and the other end is connected to the sliding rail.

[0014] Preferably, the steering adjustment assembly includes an angle scale, a servo motor, a rotating shaft, and a rotating disk;

[0015] The angle scale is fixed at the center of the surface of the main board, and angle scales are arranged on the angle scale. The servo motor is embedded in the main board, and the output shaft of the servo motor passes through the angle scale and is connected to the rotating disk. The output shaft is coaxially arranged with the angle scale. One end of the azimuth adjustment assembly is rotatably connected to the rotating disk.

[0016] Preferably, the azimuth adjustment assembly includes a drive motor, a drive shaft, and an electric telescopic rod;

[0017] The drive motor is fixed on the rotating disk, the drive shaft of the drive motor is connected to the electric telescopic rod, and the drive motor is used to drive the electric telescopic rod to move along the surface of the main board. The end of the electric telescopic rod is connected to the installation plate.

[0018] Preferably, the rotary disassembly assembly further includes a limit rod, a slider, a ball, and a chute;

[0019] The limiting rod is fixed on one side of the rotating frame close to the mounting plate. One end of the limiting rod is connected to the bottom surface of the rotating frame, the slider is fixedly connected to the other end of the limiting rod, the sliding groove is arranged on the mounting plate, and the slider is fitted in the sliding groove.

[0020] Preferably, the disassembly and unloading assembly includes an electric push rod, a rotating device and a clamping frame;

[0021] One end of the electric push rod is connected to the side wall of the reinforcing plate, and the other end extends outward along the surface of the reinforcing plate. The end of the electric push rod is connected to the clamping frame through the rotating device, and the clamping frame is used to abut against the side wall of the high-pressure main steam valve.

[0022] Preferably, the rotating device includes a rotating rod and a push plate. There are two electric push rods, and the two electric push rods are arranged in parallel at intervals. The push plate is arranged at the end of the electric push rod. The rotating rod is arranged between the two push plates, and the end of the rotating rod is connected to the driving device, and the driving device is arranged on the push plate.

[0023] Preferably, multiple groups of disassembly and unloading assemblies are evenly distributed along the central circumference of the reinforcing plate.

[0024] Preferably, the number of the azimuth adjustment assemblies is three groups, and the three groups of azimuth adjustment assemblies are distributed along the central circumference of the main board.

[0025] Compared with the prior art, the present invention has the following beneficial technical effects:

[0026] A high-pressure main steam valve disassembly device provided by the present invention is provided with a steering adjustment assembly. It is convenient to install a circular angle disc and a rotating disc in front of the main board in a circular shape. The servo motor and the rotating shaft are convenient to drive the rotation of the rotating disc, so as to drive the rotation of the three groups of azimuth adjustment assemblies, the mounting plate and the rotating disassembly assembly on one side of the rotating disc, so as to facilitate the selection and adjustment of the positions of the three groups of rotating disassembly assemblies after removing the bolts on the surfaces of the three high-pressure main steam valves, and continue to remove the bolts on the surfaces of the remaining high-pressure main steam valves. The device can clamp and fix the bolts on the surface of the high-pressure main steam valve and rotate and disassemble them, thereby realizing the disassembly of the high-pressure main steam valve, and can conveniently adjust the positions of the rotating frame and the clamping and positioning assembly, which is suitable for the disassembly of bolts at different positions on the surface of the high-pressure main steam valve, and is relatively flexible to use.

[0027] Furthermore, the high-pressure main steam valve disassembly device is provided with a splicing orientation adjustment component, which is convenient for telescopic adjustment of the positions of the three mounting plates and the rotating frame through the electric telescopic rod, and is suitable for the disassembly of high-pressure main steam valves of different specifications and sizes. The electric telescopic rod is conveniently driven to rotate through the driving motor and the driving shaft, so as to adjust the distribution between two adjacent mounting plates and the rotating frame. The setting of the angle plate facilitates understanding the angle setting between the three electric telescopic rods and the rotating frame, and the position of the rotating frame is conveniently adjusted through the electric telescopic rod, so that the center points of the three rotating frames can be distributed in the same concentric circle position, so as to facilitate the disassembly of a circle of bolts on the surface of the circular high-pressure main steam valve, thereby realizing the disassembly of the high-pressure main steam valve.

[0028] Furthermore, the high-pressure main steam valve disassembly device is provided with a rotating disassembly component which drives the rotation of the rotating frame through a rotating motor and a rotating shaft, so that the rotating frame and the electric telescopic rod inside it can drive the high-pressure main steam valve surface bolts clamped between the positioning plates to rotate, thereby realizing the rotational disassembly of the bolts, and realizing mechanized and automatic disassembly without manual disassembly. During the rotational disassembly of the high-pressure main steam valve surface bolts, the slide groove has a circular ring structure that coincides with the movement trajectory of the slider and the ball, so that the slider and the ball at the top of the limit rod can slide inside the slide groove on the inner side of the mounting plate, thereby facilitating the limiting of the rotation of the rotating frame and avoiding rotational offset of the rotating frame.

[0029] Furthermore, the high-pressure main steam valve disassembly device is provided with a clamping and positioning assembly, which facilitates the telescopic adjustment of the position of the positioning plate through an electric telescopic rod, so that the five positioning plates can clamp and fix the high-pressure main steam valve surface bolts in the middle, and the five positioning plates are used simultaneously so that the five outer sides of the high-pressure main steam valve surface bolts can be subjected to uniform clamping force, thereby making the clamping of the high-pressure main steam valve surface bolts tighter, so as to facilitate its rotation and disassembly, and the ultrasonic sensor in the middle of the rotating frame can scan and detect the bolts on the surface of the high-pressure main steam valve by emitting ultrasonic waves and receiving ultrasonic echoes, thereby facilitating the positioning and distance measurement of the bolts, so as to facilitate the use of the azimuth adjustment assembly to dock the rotating frame with the bolt position.

[0030] Furthermore, the high-pressure main steam valve disassembly device is provided with a disassembly and unloading assembly, which is convenient for driving the rotation of the rotating rod through an electric motor, thereby facilitating the flipping of the clamping frame, so that the clamping frame can be located on the rear side of the main board when the bolts are disassembled, and the clamping frame can be flipped to the front side of the main board when the high-pressure main steam valve is disassembled. The position of the push plate and the clamping frame can be conveniently adjusted telescopically by an electric push rod, which is suitable for high-pressure main steam valves of different sizes. The clamping frame has an arc-shaped clamping structure, and the four clamping frames can clamp the outside of the high-pressure main steam valve all around. The rearward movement of the telescopic moving assembly facilitates the disassembly and removal of the high-pressure main steam valve, thereby avoiding the trouble of manual disassembly.

[0031] Further, the high-pressure main steam valve disassembly device is provided with a telescopic moving component and a supporting component. The gravity of the weight seat is relatively large, which is convenient for stably supporting the rear plate and the sliding rail on the upper side through the support plate and the support. The telescopic frame is driven by a hydraulic cylinder. The telescopic frame is convenient for telescopically pushing the main board in front of the rear plate, so as to facilitate the removal of the high-pressure main steam valve in cooperation with the removal and unloading component. The main board is slidably connected to the sliding rail, so that the main board can cooperate with the sliding rail for stable movement during the process of moving back and forth under the influence of the telescopic frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. 6 is a front view structural diagram of the main board of a high-pressure main steam valve disassembly device according to the present invention;

[0033] Figure 2 FIG. 10 is a side view structural diagram of the telescopic moving component of a high-pressure main steam valve disassembly device according to the present invention;

[0034] Figure 3 FIG. 14 is a side view structural diagram of the steering adjustment component of a high-pressure main steam valve disassembly device according to the present invention;

[0035] Figure 4 FIG. 18 is an enlarged top view structural diagram of the rotating frame of a high-pressure main steam valve disassembly device according to the present invention;

[0036] Figure 5 FIG. 22 is a Figure 4 magnified structural diagram of part A in a high-pressure main steam valve disassembly device according to the present invention;

[0037] Figure 6 FIG. 28 is an enlarged internal structural diagram of the rotating frame of a high-pressure main steam valve disassembly device according to the present invention;

[0038] Figure 7 FIG. 32 is a rear view structural diagram of the main board of a high-pressure main steam valve disassembly device according to the present invention.

[0039] In the figure: 1, main board; 2, telescopic moving component; 201, telescopic frame; 202, rear plate; 203, sliding rail; 3, supporting component; 301, support plate; 302, support; 303, weight seat; 4, steering adjustment component; 401, angle scale; 402, servo motor; 403, rotating shaft; 404, rotating disk; 5, azimuth adjustment component; 501, driving motor; 502, driving shaft; 503, electric telescopic rod; 6, mounting plate; 7, rotary disassembly component; 701, rotary motor; 702, rotating shaft; 703, rotating frame; 704, limiting rod; 705, slider; 706, ball; 707, chute; 8, electric telescopic rod; 9, positioning plate; 10, reinforcing plate; 11, removal and unloading component; 1101, electric push rod; 1102, push plate; 1103, rotating rod; 1104, clamping frame; 1105, electric motor; 12, ultrasonic sensor. Specific Embodiments

[0040] The present invention will be further described in detail below with reference to the accompanying drawings. The following is an explanation of the present invention rather than a limitation thereof.

[0041] Please refer to Figures 1 to 7 , a high-pressure main steam valve disassembly device, including a main board 1, an azimuth adjustment component 5, a rotary disassembly component 7, and a disassembly and unloading component 11.

[0042] A steering adjustment component 4 is installed at the center of the front surface of the main board 1. A plurality of azimuth adjustment components 5 are arranged in a circumferential pattern. One end of the azimuth adjustment component 5 is rotatably connected to the surface of the steering adjustment component 4, and an installation plate 6 is installed at the other end. The rotary disassembly component 7 is installed on the front side of the installation plate 6; the rotary disassembly component 7 includes a rotary motor 701, a rotary shaft 702, and a rotary frame 703. The rotary shaft 702 is provided in the middle of the rotary motor 701, and a rotary frame 703 is fixed to the top of the rotary shaft 702. The rotary frame 703 is a polygonal structure, and the number of sides is the same as the number of bolt sides of the high-pressure main steam valve. An electric telescopic rod 8 is installed on each inner side wall of the rotary frame 703, and a positioning plate 9 is fixed to the top of the electric telescopic rod 8. An ultrasonic sensor 12 is installed in the middle of the rotary frame 703. A reinforcing plate 10 is fixed behind the main board 1, and the disassembly and unloading component 11 is installed around the outside of the reinforcing plate 10. The disassembly and unloading component 11 is used to support on the side wall of the high-pressure main steam valve.

[0043] The specific operation is as follows. The electric telescopic rod 8 facilitates the telescopic adjustment of the position of the positioning plate 9, so that the five positioning plates 9 can clamp and fix the bolts on the surface of the middle high-pressure main steam valve. The simultaneous use of the five positioning plates 9 enables the outer five sides of the bolts on the surface of the high-pressure main steam valve to receive uniform clamping force, thereby making the clamping of the bolts on the surface of the high-pressure main steam valve tighter, facilitating the rotary disassembly thereof. After the five positioning plates clamp the bolts, the rotary frame is driven to rotate by the motor to achieve the disassembly of the screw; the ultrasonic sensor 12 in the middle of the rotary frame 703 can scan and detect the bolts on the surface of the high-pressure main steam valve by emitting ultrasonic waves and receiving ultrasonic echoes, thereby facilitating the ranging of the bolts, so as to use the azimuth adjustment component 5 to dock the rotary frame 703 with the bolt position.

[0044] Please refer to Figure 2, a telescopic moving component 2 is installed at the rear of the main board 1 for adjusting the position of the main board. The telescopic moving component 2 includes a telescopic frame 201, a rear board 202 and sliding rails 203. The rear board 202 is installed at the rear of the telescopic frame 201, and sliding rails 203 are welded to the front parts on both sides above and below the rear board 202. The main board 1 is slidably connected to the sliding rails 203. A support component 3 is installed below the telescopic moving component 2. The support component 3 includes a support plate 301, a support bracket 302 and a weight seat 303. The support plate 301 is fixed below the rear board 202, the support bracket 302 is fixed below one side of the sliding rail 203, and the weight seat 303 is installed below the support plate 301 and the support bracket 302;

[0045] The specific operation is as follows. The weight seat 303 has a relatively large gravity, which is convenient for stably supporting the upper rear board 202 and sliding rails 203 through the support plate 301 and the support bracket 302. The telescopic frame is a scissor-type telescopic frame. The telescopic frame 201 is driven by a hydraulic cylinder, and the hydraulic cylinder is fixed at the lower part of the rear board 202. It is convenient to telescopically push the main board 1 in front of the rear board 202 through the telescopic frame 201, so as to facilitate the removal of the high-pressure main steam valve by cooperating with the removal of the unloading component 11. The sliding connection between the main board 1 and the sliding rails 203 enables the main board 1 to cooperate with the sliding rails 203 for stable movement during the process of moving back and forth under the influence of the telescopic frame 201.

[0046] Please refer to Figure 1 and Figure 3 , the steering adjustment component 4 includes an angle plate 401, a servo motor 402, a rotating shaft 403 and a rotating disk 404. The angle plate 401 is fixedly connected to the main board 1, and a servo motor 402 is embedded and installed in the middle of the main board 1. A rotating shaft 403 is connected to the main shaft of the servo motor 402, and a rotating disk 404 is fixed at the top of the rotating shaft 403. The rotating disk is located on the surface of the angle plate. The end of the rotating shaft 403 passes through the middle of the angle plate 401 and is connected to the angle plate 401, and the rotating disk 404 and the angle plate 401 are concentric structures. The rotating shaft 403 drives the rotating disk to rotate, and one end of the azimuth adjustment component 5 is rotatably connected to the rotating disk.

[0047] The specific operation is as follows. It is convenient to drive the rotation of the rotating disk 404 through the servo motor 402 and the rotating shaft 403, so as to drive the rotation of the three groups of azimuth adjustment components 5, the mounting plate 6 and the rotary disassembly component 7 on one side of the rotating disk 404, so as to select and adjust the positions of the three groups of rotary disassembly components 7 after removing the bolts on the surfaces of the three high-pressure main steam valves, and continue to remove the bolts on the surfaces of the remaining high-pressure main steam valves.

[0048] Please refer to Figure 1, the azimuth adjustment assembly 5 includes a driving motor 501, a driving shaft 502, and an electric telescopic rod 503. The driving motor 501 is installed on the rotating disk. The driving shaft 502 of the driving motor 501 is connected to one end of the electric telescopic rod 503, and the other end of the electric telescopic rod 503 is fixedly connected to the mounting plate 6.

[0049] In this embodiment, three groups of azimuth adjustment assemblies 5 are provided.

[0050] The specific operation is as follows. By the telescopic movement of the electric telescopic rod 503, the positions of the mounting plate 6 and the rotating frame 703 are adjusted, which is applicable to the disassembly of high-pressure main steam valves of different specifications and sizes. By driving the rotation of the electric telescopic rod 503 through the driving motor 501 and the driving shaft 502, the distribution between adjacent two rotating frames 703 can be adjusted. Angle scales are provided on the angle disk, and the angle settings between the three rotating frames 703 are determined through the scales. And through the electric telescopic rod 503, it is convenient to telescopically adjust the position of the rotating frame 703, so that the central points of the three rotating frames 703 can be distributed at the same concentric circle position, which is convenient for disassembling a circle of bolts on the surface of the circular high-pressure main steam valve, and then the disassembly of the high-pressure main steam valve is realized.

[0051] Please refer to Figures 4 - 6 , the rotary disassembly assembly 7 further includes a limiting rod 704, a slider 705, a ball 706, and a chute 707. A limiting rod 704 is fixed on one side of the rotating frame 703 close to the mounting plate 6, and a slider 705 is fixed at the top of the limiting rod 704. A ball 706 is rotatably embedded inside the slider 705, and a chute 707 is provided on one side of the mounting plate 6 close to the ball 706; the slider 705, the ball 706 and the chute 707 are in sliding connection, and the chute 707 is in a circular ring structure.

[0052] The specific operation is as follows. By the rotating motor 701 and the rotating shaft 702, it is convenient to drive the rotation of the rotating frame 703, so that the rotating frame 703 and the electric telescopic rod 8 inside it can drive the bolts on the surface of the high-pressure main steam valve clamped between the positioning plates 9 to rotate, and then the rotary disassembly of the bolts is realized, achieving mechanized automatic disassembly without manual disassembly. During the rotary disassembly of the bolts on the surface of the high-pressure main steam valve, the circular ring structure of the chute 707 coincides with the movement trajectories of the slider 705 and the ball 706, so that the slider 705 and the ball 706 at the top of the limiting rod 704 can slide inside the chute 707 on the inner side of the mounting plate 6, which is convenient for limiting the rotation of the rotating frame 703 and avoiding the situation of rotation deviation of the rotating frame 703.

[0053] Please refer to Figure 7, the demolition and unloading assembly 11 includes an electric push rod 1101, a push plate 1102, a rotating rod 1103, a clamping frame 1104 and an electric motor 1105. The two electric push rods are arranged in parallel at intervals. One end of the electric push rod is fixedly connected to the side wall of the reinforcement plate, and the other end of the electric push rod is provided with a push plate 1102. A rotating rod 1103 is arranged between the two push plates. The rotating rod is connected to the electric motor 1105, and the clamping frame 1104 is fixedly connected to the rotating rod.

[0054] The specific operation is as follows. In this embodiment, there are four groups of demolition and unloading assemblies 11, which are respectively arranged on the four side walls of the reinforcement plate. By driving the rotation of the rotating rod 1103 through the electric motor 1105, it is convenient to drive the flipping of the clamping frame 1104, so that the clamping frame 1104 can be located at the rear side of the main board 1 when the bolt is disassembled, and the clamping frame 1104 can be flipped to the front side of the main board 1 when the high-pressure main steam valve is demolished. And through the electric push rod 1101, it is convenient to telescopically adjust the position of the clamping frame 1104, so that the four clamping frames are in contact with the side wall of the high-pressure main steam valve, which is applicable to high-pressure main steam valves of different sizes. The clamping frame 1104 has an arc-shaped clamping structure, and the four clamping frames 1104 can fix the outer periphery of the high-pressure main steam valve. Cooperating with the backward movement of the telescopic moving assembly 2 is convenient for disassembling and removing the high-pressure main steam valve, avoiding the trouble of manual disassembly.

[0055] In summary, when the high-pressure main steam valve disassembling device is used, first, the gravity of the weight seat 303 is large enough to stably support the upper rear plate 202 and the sliding rail 203 through the support plate 301 and the bracket 302. Then, the weight seat 303 is moved to one side of the high-pressure main steam valve of the steam turbine, and the main board 1 and the high-pressure main steam valve are at the same height. Then, the position of the rotating frame 703 can be adjusted according to the specification size of the high-pressure main steam valve and the distribution of the bolts on the surface of the high-pressure main steam valve. In this process, the ultrasonic sensor 12 in the middle of the rotating frame 703 can scan and detect the bolts on the surface of the high-pressure main steam valve by emitting ultrasonic waves and receiving ultrasonic echoes, and then can measure the distance to the bolts, and then the azimuth adjusting assembly 5 can be used to dock the rotating frame 703 with the bolt position.

[0056] During docking, the positions of the three mounting plates 6 and the rotating frame 703 can be telescopically adjusted through the electric telescopic rod 503. Then, the electric telescopic rod 503 can be driven to rotate through the driving motor 501 and the driving shaft 502, so as to adjust the distribution between adjacent two mounting plates 6 and the rotating frame 703. At this time, through the setting of the angle scale 401, the angle setting between the three electric telescopic rods 503 and the rotating frame 703 can be understood, and the position of the rotating frame 703 can also be telescopically adjusted through the electric telescopic rod 503, so that the center points of the three rotating frames 703 can be distributed on the same concentric circle position, so as to disassemble a circle of bolts on the surface of the circular high-pressure main steam valve;

[0057] Then, make the rotating frame 703 cover the outside of the surface bolts of the corresponding high-pressure main steam valve, and then adjust the position of the positioning plate 9 by the telescopic movement of the electric telescopic rod 8, so that the five positioning plates 9 can clamp and fix the surface bolts of the high-pressure main steam valve in the middle. At this time, the simultaneous use of the five positioning plates 9 enables the five sides on the outside of the surface bolts of the high-pressure main steam valve to receive uniform clamping force, thereby making the clamping of the surface bolts of the high-pressure main steam valve tighter, facilitating its rotary disassembly;

[0058] During disassembly, the rotation of the rotating frame 703 can be driven by the rotating motor 701 and the rotating shaft 702, so that the rotating frame 703 and the electric telescopic rod 8 inside it can drive the surface bolts of the high-pressure main steam valve clamped between the positioning plates 9 to rotate, thereby realizing the rotary disassembly of the bolts and achieving mechanized automatic disassembly without manual disassembly. During the rotary disassembly of the surface bolts of the high-pressure main steam valve, the chute 707 is in a circular ring structure that coincides with the movement trajectories of the slider 705 and the ball 706, enabling the slider 705 and the ball 706 at the top of the limiting rod 704 to slide inside the chute 707 on the inner side of the mounting plate 6, thereby limiting the rotation of the rotating frame 703 and preventing the rotating frame 703 from rotating and shifting;

[0059] Then, after removing the three surface bolts of the high-pressure main steam valve, the rotation of the rotating disk 404 can be driven by the servo motor 402 and the rotating shaft 403, thereby driving the rotation of the three groups of azimuth adjustment components 5, the mounting plate 6, and the rotary disassembly component 7 on one side of the rotating disk 404. Then, select and adjust the positions of the three groups of rotary disassembly components 7 again to continue removing the remaining surface bolts of the high-pressure main steam valve. After all the surface bolts of the high-pressure main steam valve are completed, the high-pressure main steam valve can be removed;

[0060] When disassembling the high-pressure main steam valve, the rotation of the rotating rod 1103 can be driven by the electric motor 1105, thereby driving the flipping of the clamping frame 1104, so that the clamping frame 1104 can flip to the front side of the main board 1 when the high-pressure main steam valve is removed. Then, the positions of the push plate 1102 and the clamping frame 1104 are adjusted by the telescopic movement of the electric push rod 1101. The clamping frame 1104 has an arc-shaped clamping structure, enabling the four clamping frames 1104 to fix the outer periphery of the high-pressure main steam valve. At this time, the telescopic frame 201 is driven by a hydraulic cylinder, and then the main board 1 in front of the rear board 202 is pushed by the telescopic movement of the telescopic frame 201, thereby cooperating with the disassembly and unloading component 11 to remove the high-pressure main steam valve. At the same time, the main board 1 is slidably connected to the sliding rail 203, enabling the main board 1 to cooperate with the sliding rail 203 for stable movement during the forward and backward movement affected by the telescopic frame 201 and to cooperate with the backward movement of the telescopic movement component 2, and then the high-pressure main steam valve can be disassembled and removed, avoiding the trouble of manual disassembly. In this way, the use process of the entire high-pressure main steam valve disassembly device is completed.

[0061] The above content is only to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the claims of the present invention.

Claims

1. A high-pressure main steam valve disassembly device, characterized in that It includes a main board (1), a steering adjustment component (4), an azimuth adjustment component (5), a rotary disassembly component (7) and a disassembly and unloading component (11); The steering adjustment component (4) is arranged at the center of the front of the main board. A plurality of azimuth adjustment components (5) are arranged along the central circumference of the main board. One end of the azimuth adjustment component (5) is rotationally connected to the steering adjustment component (4), and an installation plate (6) is installed at the other end. The rotary disassembly component (7) is connected to the installation plate. A reinforcement plate (10) is fixed to the back of the main board (1). The disassembly and unloading component (11) is installed around the outside of the reinforcement plate (10), and the disassembly and unloading component is used to abut against the side wall of the high-pressure main steam valve; The rotary disassembly component (7) includes a rotary motor (701), a rotary frame (703) and a positioning plate. The rotary motor (701) is fixed on the installation plate. The rotary frame (703) is fixedly connected to the end of the output shaft of the rotary motor (701). A plurality of electric telescopic rods are arranged in the rotary frame (703). The plurality of electric telescopic rods are distributed in a circle. One end of the electric telescopic rod is fixedly connected to the inner wall of the rotary frame, and the piston end is close to the center of the rotary frame. The positioning plate (9) is fixed to the end of the piston rod of the electric telescopic rod; The main board is connected to a telescopic movement component (2), and the telescopic movement component is used to adjust the position of the main board. The telescopic movement component includes a telescopic frame (201), a rear board (202) and a sliding rail (203); The sliding rail is horizontally installed on the rear board. The main rod is slidably connected to the sliding rail. One end of the telescopic frame is connected to the rear board, and the other end is connected to the back of the main board; The steering adjustment component (4) includes an angle scale (401), a servo motor (402), a rotating shaft (403) and a rotating disk (404); The angle scale (401) is fixed at the center of the surface of the main board. Angle scales are provided on the angle scale (401). The servo motor (402) is embedded in the main board. The output shaft of the servo motor passes through the angle scale and is connected to the rotating disk. The output shaft is coaxially arranged with the angle scale. One end of the azimuth adjustment component (5) is rotationally connected to the rotating disk; The azimuth adjustment component (5) includes a driving motor (501), a driving shaft (502) and an electric telescopic rod (503); The driving motor (501) is fixed on the rotating disk. The driving shaft of the driving motor (501) is connected to the electric telescopic rod (503). The driving motor (501) is used to drive the electric telescopic rod to move along the surface of the main board. The end of the electric telescopic rod is connected to the installation plate; The disassembly and unloading component (11) includes an electric push rod (1101), a rotating device and a clamping frame (1104); One end of the electric push rod is connected to the side wall of the reinforcement plate, and the other end extends outward along the surface of the reinforcement plate. The end of the electric push rod is connected to the clamping frame through a rotating device, and the clamping frame is used to abut against the side wall of the high-pressure main steam valve; The rotating device includes a rotating rod and a pushing plate. There are two electric push rods, and the two electric push rods are arranged in parallel at intervals. The pushing plate is arranged at the end of the electric push rod. The rotating rod is arranged between the two pushing plates. The end of the rotating rod is connected to the driving device, and the driving device is arranged on the pushing plate; The number of the azimuth adjustment components (5) is three groups, and the centers of the main boards of the three groups of azimuth adjustment components are distributed in a circumferential manner.

2. The disassembly device for a high-pressure main steam valve according to claim 1, wherein A support component (3) is installed below the telescopic movement component (2), and the support component (3) includes a support plate (301), a support (302) and a weight seat (303); The rear plate is vertically fixed to the top of the support plate (301), the weight seat (303) is arranged at the bottom of the support, the support (302) is arranged obliquely, one end of the support is connected to the weight seat (303), and the other end is connected to the sliding rail.

3. The disassembly device for a high-pressure main steam valve according to claim 1, characterized in that, The rotary disassembly component (7) further includes a limiting rod (704), a slider (705), a ball (706) and a chute (707); The limiting rod (704) is fixed to the side of the rotating frame close to the mounting plate, one end of the limiting rod is connected to the bottom surface of the rotating frame, the slider is fixedly connected to the other end of the limiting rod, the chute (707) is arranged on the mounting plate, and the slider is fitted in the chute.

4. A high-pressure main steam valve disassembly device according to claim 1, characterized in that, Multiple sets of disassembly and unloading components are evenly distributed along the center circumference of the reinforcement plate.

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