A plugging and blowing device in a generator rotor hollow conductor wire cleaning equipment

Abstract

The application provides a plugging and blowing device in a generator rotor hollow conductor wire debris cleaning equipment, relates to the technical field of generator rotor coil manufacturing, and adopts the following scheme: a pressing mechanism and a locking mechanism are arranged, a pressing gap is arranged between the pressing mechanism and the locking mechanism, a blowing mechanism is arranged in the pressing mechanism, a blowing nozzle of the blowing mechanism extends out of the pressing mechanism, and a blowing hole in communication with the blowing mechanism is arranged in the pressing mechanism. The application has the effect of ensuring good sealing in the blowing and cleaning process and improving the debris cleaning quality and the cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of generator rotor coil manufacturing technology, and in particular to a sealing and blowing device in a generator rotor hollow wire cleaning equipment. Background Technology

[0002] The rotor coil in the steam turbine generator is made of hollow copper wire, and is cooled directly by a centrifugal fan through unique air inlets and outlets on the wire.

[0003] During the precision manufacturing of hollow rotor conductors, due to the complexity of the processing environment and the special nature of the conductor's internal structure, metal shavings and other contaminants often remain inside the hollow conductor after cutting. If these residues are not thoroughly removed, they will not only affect the conductor's electrical performance and insulation, but may also cause short circuits, accelerated wear, or even equipment failure during subsequent use, posing a potential threat to the stability and safety of the overall system. Therefore, high-pressure gas is needed to clean the metal shavings and contaminants inside the hollow rotor conductors.

[0004] While existing cleaning processes are simple and quick, relying solely on blowing compressed air directly through one end of the wire for cleaning, this method has significant limitations. Due to the lack of an effective sealing device to block the hollow wire during air blowing, incomplete cleaning is easily caused, and metal shavings and dirt residues are not easily detected. Summary of the Invention

[0005] The purpose of this invention is to address the problem that existing cleaning processes cannot effectively remove metal shavings and contaminants from hollow conductors. This invention proposes and designs a sealing and blowing device for cleaning hollow conductors of generator rotors, ensuring good sealing during the blowing process and improving cleaning quality.

[0006] The technical solution adopted by this invention to solve the above-mentioned technical problems is: a sealing and blowing device in a generator rotor hollow wire desiccant cleaning device, comprising a pressing mechanism and a locking mechanism, with a pressing gap between the pressing mechanism and the locking mechanism, and a blowing mechanism disposed within the pressing mechanism, the blowing nozzle of the blowing mechanism extending out of the pressing mechanism, and a blowing hole communicating with the blowing mechanism disposed within the pressing mechanism. By setting the pressing mechanism and the locking mechanism, the rotor hollow wire can be placed in the pressing gap between the pressing mechanism and the locking mechanism, the pressing mechanism performs the pressing action on the wire coil, and the locking mechanism locks the pressing mechanism, thereby sealing the air vents on both the upper and lower sides of the rotor hollow wire. The tongue hole of the rotor hollow wire communicates with the blowing hole in the pressing mechanism, and compressed air is injected through the blowing nozzle of the blowing mechanism. The compressed air enters the rotor hollow wire through the blowing mechanism and the blowing hole in the pressing mechanism, achieving the cleaning of the rotor hollow wire, significantly enhancing the automation level of the equipment and the sealing performance during desiccant cleaning, thereby improving the desiccant cleaning quality of the generator rotor hollow wire.

[0007] Furthermore, the clamping mechanism includes a floating plate and a pressure plate, with a clamping telescopic cylinder installed between them. The cylinder body of the clamping telescopic cylinder is connected to the floating plate, and the telescopic rod of the cylinder is connected to the pressure plate, thereby adjusting the distance between the floating plate and the pressure plate. In use, the floating plate is fixed, and the clamping telescopic cylinder can push the pressure plate downward to complete the clamping action. Furthermore, a fixed frame is provided on the upper part of the floating plate for connecting the chip removal equipment support.

[0008] Furthermore, a hook is fixed to the floating plate, and the hook passes through the pressure plate to engage with the locking mechanism. The locking mechanism connects with the hook through its operation, thereby achieving the locking function.

[0009] Furthermore, the pressure plate has grooves, and the floating plate is slidably installed in the grooves. The pressure plate also has elongated holes through which plate hooks pass. Four plate hooks are provided at the four corners of the rectangle. This allows the floating plate to slide smoothly and adjusts the position of the floating plate and the plate hooks.

[0010] Furthermore, a rubber plate is provided on the side of the pressure plate near the locking mechanism. When pressed, the rubber plate comes into contact with the hollow conductor of the rotor, and the rubber plate enhances the sealing performance.

[0011] Furthermore, the air blowing mechanism includes an air chamber plate, with an air nozzle mounted on the air chamber plate and communicating with an air chamber within the air chamber plate. A mounting cavity is provided on the floating plate, and the air chamber plate is installed within the mounting cavity, positioned above the pressure plate. An air blowing hole is provided on the pressure plate, communicating with an air chamber within the air chamber plate. Furthermore, a sealing gasket is provided at the lower part of the air chamber plate, fitting snugly against the pressure plate to ensure a tight seal around the air chamber when it communicates with the air blowing hole.

[0012] Furthermore, the device has multiple air-blowing holes arranged in a row in the middle of the pressure plate. A row of air-blowing holes drilled in the middle of the pressure plate allows for simultaneous air blowing to remove debris from multiple hollow conductors, thereby effectively improving the debris removal efficiency of the generator rotor's hollow conductors.

[0013] Furthermore, auxiliary vent holes are provided on the outer side of the pressure plate, and screw plugs are installed in the auxiliary vent holes. The screw plugs are used to seal the auxiliary vent holes that are created when drilling the outermost air hole on the pressure plate.

[0014] Furthermore, the locking mechanism includes a support plate, with a pad on the upper part of the support plate (i.e., the side near the pressure plate) and a slide plate on the lower part. A stop block is mounted on the slide plate. A hook passes through an elongated hole in the pad plate and engages with the stop block. A drive assembly is connected to the slide plate, which moves the slide plate to engage the stop block with the hook, thus achieving the locking function. Specifically, the hook is located to one side of the stop block. When locking is required, the drive assembly moves the slide plate, moving the stop block into the hook, thereby engaging the hook with the stop block. This achieves locking after the pressure plate and support plate press against the rotor's hollow wire, resulting in a better seal and facilitating thorough chip removal.

[0015] Furthermore, the drive assembly includes a locking telescopic cylinder mounted on the lower part of the pallet. A push plate is connected to the telescopic rod of the locking telescopic cylinder, and the push plate is connected to the slide plate. A guide block is provided at the bottom of the pallet, and the slide plate slides in cooperation with the guide block to guide the slide plate as it slides. There are two slide plates, each of which engages with two plate hooks. The two ends of the push plate are connected to the two slide plates respectively. The locking telescopic cylinder drives the push plate to move, and the push plate pushes the slide plate to move, thereby causing the stop block on the slide plate to engage with the plate hook.

[0016] As can be seen from the above technical solutions, the present invention has the following advantages:

[0017] This solution provides a sealing and blowing device in a generator rotor hollow wire descaling equipment, which significantly enhances the automation level and sealing performance during descaling, thereby improving the descaling quality of the generator rotor hollow wires. Through a row of air holes on the sealing and blowing device's pressure plate, multiple hollow wires can be descaled simultaneously, effectively improving the descaling efficiency of the generator rotor hollow wires, reducing worker workload, and lowering production costs. Attached Figure Description

[0018] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a structural schematic diagram of a specific embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the pressing mechanism in a specific embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the pressure plate in a specific embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the locking mechanism in a specific embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the upper structure of the tray in a specific embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the skateboard structure in a specific embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the air blowing mechanism in a specific embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram showing the bottom of the air blowing mechanism in a specific embodiment of the present invention.

[0027] In the diagram, 1. clamping mechanism, 2. locking mechanism, 3. air blowing mechanism, 4. screw plug, 5. plate hook, 6. rubber plate, 7. pressure plate, 8. floating plate, 9. clamping telescopic cylinder, 10. fixed frame, 11. shaft seat, 12. telescopic rod, 13. limit bolt, 14. push plate, 15. sliding plate, 16. guide block, 17. locking telescopic cylinder, 18. support plate, 19. pad plate, 20. sealing gasket, 21. air chamber plate, 22. air nozzle, 23. air blowing hole, 24. stop block. Detailed Implementation

[0028] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figures 1 to 8As shown in the figure, this specific embodiment provides a sealing air blowing device in a generator rotor hollow wire desiccant removal device, including a pressing mechanism 1 and a locking mechanism 2. A pressing gap is provided between the pressing mechanism 1 and the locking mechanism 2. An air blowing mechanism 3 is provided in the pressing mechanism 1. The air blowing nozzle 22 of the air blowing mechanism 3 extends out of the pressing mechanism 1. An air blowing hole 23 communicating with the air blowing mechanism 3 is provided in the pressing mechanism 1.

[0030] Among them, see Figure 2 The clamping mechanism 1 includes a floating plate 8 and a pressure plate 7. A clamping telescopic cylinder 9 is installed between the floating plate 8 and the pressure plate 7. The cylinder body of the clamping telescopic cylinder 9 is connected to the floating plate 8, and the telescopic rod 12 of the clamping telescopic cylinder 9 is connected to the pressure plate 7 to adjust the distance between the floating plate 8 and the pressure plate 7. In use, the floating plate 8 is fixed, and the clamping telescopic cylinder 9 can push the pressure plate 7 downward to complete the clamping action of the pressure plate 7. Specifically, a fixing frame 10 is provided on the upper part of the floating plate 8 to connect the chip removal equipment bracket. A plate hook 5 is fixed on the lower part of the floating plate 8, and the plate hook 5 passes through the pressure plate 7 and cooperates with the locking mechanism 2. See also Figure 3 The pressure plate 7 has a groove, and the floating plate 8 is slidably installed in the groove. The pressure plate 7 has an elongated hole through which four plate hooks 5 pass. These hooks are connected end to end to form a rectangle, allowing the floating plate 8 to slide smoothly and adjusting the position of the floating plate 8 and the plate hooks 5. A rubber plate 6 is provided on the lower part of the pressure plate 7 (the side near the locking mechanism 2). When pressed, the rubber plate 6 contacts the hollow conductor of the rotor, and the rubber plate 6 enhances the sealing performance.

[0031] Among them, see Figure 1 , Figure 7 as well as Figure 8 The air blowing mechanism 3 includes an air chamber plate 21, an air nozzle 22 mounted on the air chamber plate 21, and the air nozzle 22 communicating with the air chamber in the air chamber plate 21. A mounting cavity is provided on the floating plate 8, and the air chamber plate 21 is mounted in the mounting cavity. The air chamber plate 21 is located above the pressure plate 7. (See attached image) Figure 3 The pressure plate 7 is provided with air blowing holes 23, which communicate with the air chamber in the air chamber plate 21. A sealing gasket 20 is provided at the lower part of the air chamber plate 21, and the sealing gasket 20 fits against the pressure plate 7 to ensure the sealing of the surrounding area when the air chamber communicates with the air blowing holes 23. There are multiple air blowing holes 23, which are arranged in a row in the middle of the pressure plate 7. A row of air holes is drilled in the middle of the pressure plate 7, which can simultaneously blow air to remove debris from multiple hollow wires, thereby effectively improving the debris removal efficiency of the hollow wires of the generator rotor. An auxiliary vent is provided on the outer side of the pressure plate 7, and a screw plug 4 is provided in the auxiliary vent. The screw plug 4 is used to seal the auxiliary vent that is created by drilling the outermost air blowing hole 23 on the pressure plate 7.

[0032] Additionally, see Figure 4 and Figure 5The locking mechanism 2 includes a support plate 18. A pad 19 is provided on the upper part of the support plate 18 (i.e., the side closest to the pressure plate 7), and a sliding plate 15 is provided on the lower part of the support plate 18. A stop block 24 is provided on the sliding plate 15. A hook 5 passes through an elongated hole on the pad 19 and engages with the stop block 24. A drive assembly is connected to the sliding plate 15, which drives the sliding plate 15 to move, causing the stop block 24 to engage with the hook 5, thus achieving the locking function. Specifically, the hook 5 is located on one side of the stop block 24. When locking is required, the drive assembly drives the sliding plate 15 to move, causing the stop block 24 to move into the hook 5, thereby achieving the engagement of the hook 5 and the stop block 24. This achieves locking after the pressure plate 7 and the support plate 18 press and tighten the rotor hollow wire, resulting in a better seal and facilitating thorough chip removal. Specifically, the drive assembly includes a locking telescopic cylinder 17, which is installed at the lower part of the support plate 18. A push plate 14 is connected to the telescopic rod 12 of the locking telescopic cylinder 17, and the push plate 14 is connected to the slide plate 15. A guide block 16 is provided at the bottom of the support plate 18, and the slide plate 15 slides in cooperation with the guide block 16 to guide the slide plate 15 when it slides. There are two slide plates 15, and each slide plate 15 cooperates with two plate hooks 5. The two ends of the push plate 14 are connected to the two slide plates 15 respectively. The locking telescopic cylinder 17 drives the push plate 14 to move, and the push plate 14 pushes the slide plate 15 to move, thereby causing the stop block 24 on the slide plate 15 to engage with the plate hook 5. In order to ensure smooth pushing, a bearing seat 11 is fixed at the bottom of the support plate 18. The telescopic rod 12 of the locking telescopic cylinder 17 passes through the bearing seat 11 and is connected to the push plate 14 through the limiting bolt 13.

[0033] Its working principle is as follows: When in use, the hollow rotor wire is placed on the support plate 18, so that it is located in the clamping gap between the support plate 18 and the pressure plate 7. The fixed frame 10 on the floating plate 8 is connected to the chip removal equipment bracket, and the floating plate 8 is fixed. The clamping telescopic cylinder 9 pushes the pressure plate 7 to move downward, so that the rubber plate 6 at the bottom of the pressure plate 7 contacts the hollow rotor wire. The locking telescopic cylinder 17 drives the push plate 14 to move, and the push plate 14 pushes the slide plate 15 to move, so that the stop block 24 on the slide plate 15 is locked in the plate hook 5, thereby locking the floating plate 8 and the support plate 18. Then the clamping telescopic cylinder 9 pushes the pressure plate 7 to press it. Finally, compressed air is blown into the tongue hole of the hollow rotor wire through the air nozzle 22, the air chamber and the air hole 23 to complete the cleaning work of the hollow rotor wire.

[0034] The terms “upper,” “lower,” “outer,” “inner,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing and blowing device in a generator rotor hollow wire desiccant removal equipment, comprising a pressing mechanism and a locking mechanism, characterized in that, A clamping gap is provided between the clamping mechanism and the locking mechanism. An air blowing mechanism is provided in the clamping mechanism. The air blowing nozzle of the air blowing mechanism extends out of the clamping mechanism. An air blowing hole communicating with the air blowing mechanism is provided in the clamping mechanism. The clamping mechanism includes a floating plate and a pressure plate. A clamping telescopic cylinder is provided between the floating plate and the pressure plate. The cylinder body of the clamping telescopic cylinder is connected to the floating plate, and the telescopic rod of the clamping telescopic cylinder is connected to the pressure plate. A plate hook is fixed on the floating plate, and the plate hook passes through the pressure plate and cooperates with the locking mechanism. The pressure plate has a groove, and the floating plate is slidably installed in the groove. The pressure plate has an elongated hole through which the plate hook passes. The air blowing mechanism includes an air chamber plate, an air blowing nozzle mounted on the air chamber plate, the air blowing nozzle communicating with the air chamber in the air chamber plate, an installation cavity provided on the floating plate, the air chamber plate installed in the installation cavity, the air chamber plate being located above the pressure plate, an air blowing hole provided on the pressure plate, the air blowing hole communicating with the air chamber in the air chamber plate, and a sealing gasket provided at the lower part of the air chamber plate, the sealing gasket being in contact with the pressure plate. There are multiple air blowing holes, which are arranged in a row in the middle of the pressure plate. The locking mechanism includes a support plate, a pad on the upper part of the support plate, a slide plate on the lower part of the support plate, a stop block on the slide plate, a hook passing through a long hole on the pad plate and engaging with the stop block, and a drive assembly connected to the slide plate, which can drive the slide plate to move so that the stop block is engaged in the hook. The drive assembly includes a locking telescopic cylinder, which is installed at the bottom of the pallet. A push plate is connected to the telescopic rod of the locking telescopic cylinder, and the push plate is connected to the slide plate.

2. The sealing and blowing device in the generator rotor hollow wire cleaning equipment as described in claim 1, characterized in that, A rubber plate is provided on the side of the pressure plate near the locking mechanism.

3. The sealing and blowing device in the generator rotor hollow wire cleaning equipment as described in claim 1, characterized in that, An auxiliary vent is provided on the outside of the pressure plate, and a screw plug is installed in the auxiliary vent.

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