A quick dismounting device for the rotor magnetic pole of a hydro-generator

Abstract

The application discloses a water-turbine-generator rotor magnetic-pole quick dismounting device, and belongs to the technical field of water-turbine generators. The water-turbine-generator rotor magnetic-pole quick dismounting device comprises a dismounting mechanism. A threaded rod two is driven by a double-shaft motor to rotate in the interior of an operating frame, and the threaded rod two is in threaded connection with a clamping plate, so that the clamping plate drives a limiting block to slide in a limiting groove, the distance between the two clamping plates can be adjusted, a threaded rod one is driven by a servo motor to rotate in a moving groove, the threaded rod one is in threaded connection with a threaded sleeve block, so that the threaded sleeve block drives a hydraulic rod to move, the two clamping plates can be moved to the two sides of a magnetic pole, the operating frame is driven by the hydraulic rod to ascend and descend, and the magnetic pole is moved by the two clamping plates, so that the rotor magnetic pole can be conveniently mounted and dismounted, the operation is simple and fast, and the device is convenient to use.

Description

Technical Field

[0001] This application relates to the field of hydro-generator technology, specifically a device for quick assembly and disassembly of rotor magnetic poles of a hydro-generator. Background Technology

[0002] The rotor magnetic poles of a turbine generator are key components for generating the magnetic field, and they are fixed to the rotor support via a T-tail or dovetail groove structure. During unit overhaul, troubleshooting, or magnetic pole replacement, the magnetic poles need to be removed from or installed in the rotor.

[0003] The existing method uses general tools such as workshop cranes, jacks, and pry bars, combined with manual operation. This method has the following significant drawbacks: it requires multiple people to work together, the operation steps are cumbersome, centering and alignment are difficult, and it often takes several hours to disassemble or assemble a single magnetic pole. It also has poor safety: the magnetic poles are heavy (up to several tons), and they are prone to shaking, jamming, or sudden detachment during disassembly or assembly, posing a serious safety threat to equipment and personnel. Furthermore, it is inconvenient to use.

[0004] Therefore, this application provides a device for quick assembly and disassembly of the rotor magnetic poles of a hydro-generator to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a rapid disassembly and assembly device for the rotor magnetic poles of a hydro-generator, aiming to solve the problems mentioned in the background art. The existing methods rely on general tools such as overhead cranes, jacks, and pry bars, combined with manual operation. These methods have the following significant drawbacks: they require multiple people to work together, the operation steps are cumbersome, alignment and positioning are difficult, disassembling or assembling a single magnetic pole often takes several hours, and safety is poor: the magnetic poles are heavy (up to several tons), and are prone to shaking, jamming, or sudden detachment during disassembly and assembly, posing a serious safety threat to equipment and personnel, and are inconvenient to use.

[0006] To achieve the above objectives, this application provides the following technical solution: a quick disassembly and assembly device for the rotor magnetic poles of a hydro-generator, the quick disassembly and assembly device for the rotor magnetic poles of a hydro-generator includes a disassembly and assembly mechanism; To address the existing problem, the method involves using general-purpose tools such as overhead cranes, jacks, and pry bars, combined with manual operation. This method has the following significant drawbacks: it requires multiple people to work together, the operation steps are cumbersome, alignment and positioning are difficult, and disassembling or assembling a single magnetic pole often takes several hours; it also has poor safety: the magnetic poles are heavy and prone to shaking, jamming, or sudden detachment during disassembly or assembly, posing a serious safety threat to equipment and personnel; and it is inconvenient to use. The disassembly / assembly mechanism includes a bracket, a control switch on the side of the bracket, and a moving slot on the top of the bracket. A threaded rod is rotatably connected inside the moving slot. A servo motor is fixedly connected to the top side of the bracket, and the output end of the servo motor extends into the moving slot and is fixedly connected to the threaded rod. A threaded sleeve is fitted around the threaded rod, and a hydraulic rod is located at the bottom of the threaded sleeve. The output of the hydraulic rod... An operating frame is fixedly connected to the end of the rotor. A dual-axis motor is installed inside the operating frame, and a threaded rod is fixedly connected to the output end of the dual-axis motor. A clamping plate is installed outside the threaded rod. The dual-axis motor drives the threaded rod to rotate inside the operating frame. The threaded rod is threadedly connected to the clamping plate, causing the clamping plate to slide within the limiting groove, allowing adjustment of the distance between the two clamping plates. A servo motor drives a first threaded rod to rotate in the moving groove. The first threaded rod is threadedly connected to a threaded sleeve block, causing the threaded sleeve block to move a hydraulic rod, allowing the two clamping plates to move to both sides of the magnetic pole. The hydraulic rod then drives the operating frame to rise and fall, and the two clamping plates pull the magnetic poles, facilitating easy installation and removal of the rotor magnetic poles. The operation is simple, quick, and convenient.

[0007] Preferably, in order to solve the problem of convenient longitudinal movement, the threaded rod is threadedly connected to the threaded sleeve block, and the threaded sleeve block is disposed inside the moving groove. The threaded sleeve block is slidably connected to the moving groove, and the threaded rod is threadedly connected to the threaded sleeve block, thereby facilitating the longitudinal movement of the threaded sleeve block and making it easy to move to the outside of the magnetic pole, which is convenient to use.

[0008] Preferably, in order to solve the problem of convenient lateral distance adjustment of the clamping plates, two sets of threaded rods are symmetrically arranged inside the operating frame, and the two sets of threaded rods are rotatably connected to the operating frame. The external thread directions of the two sets of threaded rods are opposite, and the threaded rods are slidably connected to the operating frame. The rotatable connection between the threaded rods and the operating frame allows the distance between the two sets of clamping plates to be adjusted, thereby adapting to different sizes of magnetic poles and making it convenient to use.

[0009] Preferably, in order to solve the problem of convenient clamping and fixing of the magnetic pole, the two sets of clamping plates are symmetrically arranged, and the longitudinal section of the clamping plates is L-shaped. The symmetrical arrangement of the clamping plates and their L-shaped shape allow for convenient application of force to the magnetic pole through the bottom protrusion, making them easy to use.

[0010] Preferably, in order to solve the problem of stability of the clamping plate movement, limit blocks are fixedly connected to the top two sides of the clamping plate, and limit grooves are opened on both sides of the operating frame. The limit blocks are set inside the limit grooves and are slidably connected to the limit grooves. The clamping plate drives the limit blocks to slide inside the limit grooves, which can easily improve the stability of the clamping plate movement.

[0011] Preferably, to address the issue of ease of use, the control switch is electrically connected to the servo motor, hydraulic rod, and dual-axis motor, allowing for convenient operation by controlling the operation of the servo motor, hydraulic rod, and dual-axis motor.

[0012] This disassembly and assembly mechanism uses a dual-axis motor to drive the second threaded rod to rotate inside the operating frame. The second threaded rod is threadedly connected to the clamping plate, which causes the clamping plate to slide within the limiting groove, allowing adjustment of the distance between the two sets of clamping plates. A servo motor drives the first threaded rod to rotate in the moving groove. The first threaded rod is threadedly connected to the threaded sleeve block, which causes the threaded sleeve block to move the hydraulic rod, allowing the two sets of clamping plates to move to both sides of the magnetic pole. The hydraulic rod then drives the operating frame to rise and fall, and the two sets of clamping plates pull the magnetic pole to move, facilitating the installation and disassembly of the rotor magnetic pole. The operation is simple, quick, and convenient. Attached Figure Description

[0013] Figure 1 A three-dimensional structural schematic diagram of a quick disassembly and assembly device for rotor magnetic poles of a hydro generator; Figure 2 A schematic diagram of the main structure of a quick disassembly and assembly device for rotor magnetic poles of a hydro generator; Figure 3 This is a top view schematic diagram of a device for quick assembly and disassembly of rotor magnetic poles of a hydro-generator.

[0014] In the picture: 1. Disassembly and assembly mechanism; 11. Bracket; 12. Control switch; 13. Moving groove; 14. Threaded rod one; 15. Servo motor; 16. Threaded sleeve block; 17. Hydraulic rod; 18. Operating frame; 19. Dual-axis motor; 20. Threaded rod two; 21. Clamping plate; 22. Limiting block; 23. Limiting groove. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Example 1 This embodiment provides a device for quick assembly and disassembly of the rotor magnetic poles of a hydro-generator, such as... Figure 1-3 As shown, the hydro-generator rotor magnetic pole quick disassembly and assembly device includes a disassembly and assembly mechanism 1. The set disassembly and assembly mechanism 1 makes it easy to install and disassemble the rotor magnetic poles. The operation is simple, quick and convenient.

[0017] Specifically, the disassembly and assembly mechanism 1 includes a bracket 11, a control switch 12 is provided on the side of the bracket 11, a moving groove 13 is provided on the top of the bracket 11, a threaded rod 14 is rotatably connected inside the moving groove 13, a servo motor 15 is fixedly connected to the top side of the bracket 11, the output end of the servo motor 15 extends into the moving groove 13 and is fixedly connected to the threaded rod 14, a threaded sleeve block 16 is sleeved on the outside of the threaded rod 14, a hydraulic rod 17 is provided at the bottom of the threaded sleeve block 16, an operating frame 18 is fixedly connected to the output end of the hydraulic rod 17, a dual-axis motor 19 is provided inside the operating frame 18, a threaded rod 20 is fixedly connected to the output end of the dual-axis motor 19, and a clamping plate 21 is provided on the outside of the threaded rod 20. In use, the dual-axis motor 19 drives the threaded rod 20 to rotate inside the operating frame 18. The threaded rod 20 is threadedly connected to the clamping plate 21, causing the clamping plate 21 to slide the limiting block 22 inside the limiting groove 23. This allows adjustment of the distance between the two sets of clamping plates 21. The servo motor 15 drives the threaded rod 14 to rotate in the moving groove 13. The threaded rod 14 is threadedly connected to the threaded sleeve block 16, causing the threaded sleeve block 16 to move the hydraulic rod 17, which allows the two sets of clamping plates 21 to move to the magnetic pole. The rotor magnetic poles can be easily installed and disassembled by the two sides and the operating frame 18 is raised and lowered by the hydraulic rod 17. The magnetic poles are moved by the two sets of clamping plates 21. The operation is simple and quick and easy to use. The bracket 11 and the operating frame 18 are welded from Q345B high-strength steel plates. The threaded rod 14 and the threaded rod 20 are made of 45 steel or 40Cr steel and are heat treated to enhance wear resistance and torsional strength. The L-shaped part of the clamping plate 21 is overlaid with a hard alloy layer to increase the friction and wear resistance of the contact surface with the magnetic poles.

[0018] Furthermore, the threaded rod 14 is threadedly connected to the threaded sleeve 16, and the threaded sleeve 16 is located inside the moving groove 13. The threaded sleeve 16 is slidably connected to the moving groove 13, and the threaded rod 14 is threadedly connected to the threaded sleeve 16, thereby facilitating the longitudinal movement of the threaded sleeve 16 and making it easy to move to the outside of the magnetic pole, which is convenient for use.

[0019] Furthermore, two sets of threaded rods 20 are symmetrically arranged inside the operating frame 18, and the two sets of threaded rods 20 are rotatably connected to the operating frame 18. The external thread directions of the two sets of threaded rods 20 are opposite, and the threaded rods 20 are slidably connected to the operating frame 18. The rotatable connection between the threaded rods 20 and the operating frame 18 allows for adjustment of the distance between the two sets of clamping plates 21, thereby adapting to different sizes of magnetic poles and making it convenient to use.

[0020] The two sets of clamping plates 21 are symmetrically arranged, and the longitudinal section of the clamping plates 21 is L-shaped. The clamping plates 21 are symmetrically arranged and L-shaped, and the bottom protrusions can be used to easily apply force to the magnetic poles, making them convenient to use.

[0021] Specifically, limit blocks 22 are fixedly connected to the top two sides of the clamping plate 21, and limit grooves 23 are opened on both sides of the operating frame 18. The limit blocks 22 are set inside the limit grooves 23 and are slidably connected to the limit grooves 23. The clamping plate 21 drives the limit blocks 22 to slide inside the limit grooves 23, which can easily improve the stability of the movement of the clamping plate 21. The limit grooves 23 are embedded with polytetrafluoroethylene bushings to reduce the frictional resistance of the limit blocks 22. At the same time, a position sensor (such as a photoelectric sensor) is provided to detect the real-time position of the clamping plate 21 and feed it back to the control system to achieve precise centering.

[0022] Furthermore, the control switch 12 is electrically connected to the servo motor 15, the hydraulic rod 17, and the dual-axis motor 19. The operation of the servo motor 15, the hydraulic rod 17, and the dual-axis motor 19 can be controlled by the control switch 12, which facilitates operation.

[0023] The control switch 12 is integrated into a dustproof and waterproof control box. The box contains a PLC (Programmable Logic Controller) or microprocessor to coordinate the actions of the servo motor 15, the hydraulic rod 17, and the dual-axis motor 19. The control switch 12 includes a button group for inputting operation commands (such as clamping, lifting, and lateral movement). The servo motor 15 is an AC servo motor with a rated power of 1.5-3kW and a torque of 10-30N·m. The dual-axis motor 19 is a dual-output shaft motor with a rated power of 1-2kW. The hydraulic rod 17 is an electro-hydraulic push rod with a rated thrust of 5-20 tons, a stroke of 500-1000mm, and an operating voltage of 380V AC or 24V DC. All the above devices are connected to the control switch 12 via cables and are equipped with overcurrent protectors and emergency stop buttons to ensure operational safety.

[0024] It should be noted that the servo motor 15, hydraulic rod 17 and dual-axis motor 19 are existing devices, and their working principle, size and model are not related to the function of this application, so they will not be described in detail. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0025] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A device for quick assembly and disassembly of rotor magnetic poles of a hydro-generator, characterized in that, The quick disassembly and assembly device for the rotor magnetic poles of the hydro-generator includes a disassembly and assembly mechanism (1). The disassembly and assembly mechanism (1) includes a bracket (11), a control switch (12) is provided on the side of the bracket (11), a moving groove (13) is provided on the top of the bracket (11), a threaded rod (14) is rotatably connected inside the moving groove (13), a servo motor (15) is fixedly connected to the top side of the bracket (11), the output end of the servo motor (15) extends into the moving groove (13) and is fixedly connected to the threaded rod (14), a threaded sleeve block (16) is sleeved on the outside of the threaded rod (14), a hydraulic rod (17) is provided at the bottom of the threaded sleeve block (16), an operating frame (18) is fixedly connected to the output end of the hydraulic rod (17), a dual-axis motor (19) is provided inside the operating frame (18), a threaded rod (20) is fixedly connected to the output end of the dual-axis motor (19), and a clamping plate (21) is provided on the outside of the threaded rod (20).

2. The quick disassembly and assembly device for the rotor magnetic poles of a hydro-generator according to claim 1, characterized in that: The threaded rod (14) is threadedly connected to the threaded sleeve (16), and the threaded sleeve (16) is disposed inside the moving groove (13), and the threaded sleeve (16) is slidably connected to the moving groove (13).

3. The quick disassembly and assembly device for the rotor magnetic poles of a hydro-generator according to claim 1, characterized in that: Two sets of threaded rods (20) are symmetrically arranged inside the operating frame (18), and the two sets of threaded rods (20) are rotatably connected to the operating frame (18). The external thread directions of the two sets of threaded rods (20) are opposite, and the threaded rods (20) are slidably connected to the operating frame (18).

4. The quick disassembly and assembly device for the rotor magnetic poles of a hydro-generator according to claim 1, characterized in that: The two sets of clamps (21) are arranged symmetrically, and the longitudinal section of the clamps (21) is L-shaped.

5. The quick disassembly and assembly device for the rotor magnetic poles of a hydro-generator according to claim 1, characterized in that: Limiting blocks (22) are fixedly connected to the top two sides of the clamping plate (21), and limiting grooves (23) are opened on both sides of the operating frame (18). The limiting blocks (22) are set inside the limiting grooves (23), and the limiting blocks (22) and the limiting grooves (23) are slidably connected.

6. The quick disassembly and assembly device for the rotor magnetic poles of a hydro-generator according to claim 1, characterized in that: The control switch (12) is electrically connected to the servo motor (15), the hydraulic rod (17), and the dual-axis motor (19).

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