A servomotor for a hydroelectric generator

Abstract

This invention discloses a relay device for a hydroelectric generator, belonging to the field of hydropower generation. It includes a cylinder body, a hydraulic rod on one side of the cylinder body, an end cap fixedly connected to one side of the cylinder body, a hydraulic rod slidably connected inside the end cap, a piston fixedly connected to one side of the hydraulic rod, and a connecting member fixedly connected to the other side of the cylinder body. This device enables transmission, causing the drive rod to push the first contact piece and the second contact piece into contact, forming a circuit. This allows the signal generator to be energized and send a signal to the terminal, promptly alerting the operator to any positional misalignment of the hydraulic rod, requiring timely maintenance. This reduces the frequency of manual maintenance, allows for timely detection of hydraulic rod misalignment, and prevents excessive wear of the hydraulic rod and seals over time, thereby preventing large-scale leakage of hydraulic oil inside the relay device and avoiding contamination of surrounding equipment by the leaked hydraulic oil.

Description

Technical Field

[0001] This invention relates to the field of hydropower generation, and more specifically, to a relay device for a hydro-generator. Background Technology

[0002] The hydro-generator relay is a device connected to the control ring of the hydro-generator's guide vane mechanism via a rocker arm. It adjusts the opening of the guide vane mechanism according to flow rate and output, and is an essential component of the hydro-generator. Existing hydro-generators control the water flow by injecting hydraulic oil into the cylinder, causing the piston to move the piston push-pull rod connected to the guide vane, thus controlling the position of the guide vane.

[0003] However, existing hydro-generator relays are prone to leaks during high-pressure oil injection due to the movement of the piston push-pull rod, which can lead to poor sealing and affect the effective operation of the relay. Furthermore, one end of the piston push-pull rod is connected to the guide vane, causing it to be subjected to a downward force. When the piston push-pull rod moves, it can easily cause increased wear on the bottom seal, affecting subsequent operation.

[0004] Chinese patent CN112228266B discloses a relay device for a hydro-generator. Through a rubber sealing ring structure located between the rear end cover, front end cover, and positioning sealing plate, it ensures that the sealing effect of the inner cavities on both sides of the adjusting piston in the cylinder remains intact under high-pressure oil injection. This avoids leakage caused by poor sealing due to piston push-pull rod movement during high-pressure oil injection. However, under prolonged high-intensity environments, the piston push-pull rod may shift, causing the axis of the push-pull rod to deviate from the axis of the cylinder, resulting in jamming of the push-pull rod and accelerating the wear of the push-pull rod and seals. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a relay device for a hydro-generator.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A relay device for a hydro-generator includes a cylinder body, a hydraulic rod is provided on one side of the cylinder body, an end cover is fixedly connected to one side of the cylinder body, a hydraulic rod is slidably connected inside the end cover, a piston is fixedly connected to one side of the hydraulic rod, a connector is fixedly connected to the other side of the cylinder body, and a detection component for detecting the eccentricity of the hydraulic rod is provided on one side of the end cover.

[0008] The detection assembly includes a fixing rod fixed to one side of the end cap and a groove formed on one side of the end cap. A slot is formed on one side of the fixing rod, and a vertical rod is slidably connected to the inside of the slot. A second contact wheel is fixedly connected to the bottom of the vertical rod, and a top rod is fixedly connected to the outer surface of the vertical rod. A hinge rod is rotatably connected to one side of the inside of the slot, and an arc-shaped rack is fixedly connected to one side of the hinge rod. Gears are rotatably connected to the front and rear edges inside the slot. A first groove is formed on one side of the inside of the slot, and a rack is slidably connected to the inside of the first groove. A drive rod is fixedly connected to the top of the rack. An alarm component is disposed inside the groove, and a correction component is fixedly connected to the bottom edge of the fixing rod.

[0009] Furthermore, the alarm component includes a second contact piece fixed to the top of the groove, elastic rings on both sides of the bottom of the second contact piece, a first contact piece fixedly connected to the bottom of the elastic rings, and the second contact piece and the elastic rings connected to an external signal generator.

[0010] Furthermore, the hinge rod is located above the top rod, the arc-shaped rack meshes with the gear, the arc-shaped rack and the rack mesh with each other, one side of the drive rod extends into the interior of the groove, the drive rod and the groove slide and adapt to each other, and four sets of fixing rods are evenly distributed on one side of the end cap.

[0011] Furthermore, coil springs are fixedly connected to the front and rear sides of the fixing rod, and the connecting shaft between the hinge rod and the slot extends into the interior of the coil spring, with the coil spring and the connecting shaft being fixedly connected to each other.

[0012] Furthermore, the correction assembly includes a servo motor fixed to the bottom of the fixing rod and four threaded rods fixed to the end cap near the hydraulic rod. The output end of the servo motor is fixedly connected to a drive gear, and a driven gear is fixedly connected to one side of the outer surface of the threaded rod. An internal threaded sleeve is threadedly connected to the outer surface of the threaded rod, and a first contact wheel is fixedly connected to the bottom of the internal threaded sleeve.

[0013] Furthermore, the first contact wheel is in contact with the outer surface of the hydraulic rod, the drive gear and the driven gear mesh with each other, and the diameter of the driven gear is larger than the diameter of the drive gear.

[0014] Furthermore, the piston is internally equipped with a sealing assembly, which includes a mounting groove on one side of the piston, four triangular blocks fixed to one side of the inner surface of the cylinder, and an adsorption assembly located at the edge of one side of the piston. Four first ratchet racks are uniformly fixedly connected to one side of the inner surface of the mounting groove. A second groove is formed at the edge of one side of the inner surface of the mounting groove. A fixing plate is slidably connected inside the second groove. A horizontal plate is slidably connected inside the fixing plate. A second ratchet rack is fixedly connected to one side of the horizontal plate. A first spring is sleeved on the outer surface of the horizontal plate. An arc-shaped pressure plate is fixedly connected to the top of the fixing plate. A spring telescopic rod is fixedly connected to the bottom of the arc-shaped pressure plate.

[0015] Furthermore, the spring telescopic rod consists of a telescopic rod, a telescopic spring, and a telescopic cylinder. The telescopic spring is located inside the telescopic cylinder, and the bottom of the telescopic rod is fixed to the telescopic spring. The telescopic rod and the telescopic cylinder slide and adapt to each other, and the second ratchet and the first ratchet mesh with each other.

[0016] Furthermore, the adsorption assembly includes a telescopic groove formed on one edge of the piston, a second spring is fixedly connected to one side of the telescopic groove, a cylinder is fixedly connected to one side of the second spring, and a filter ring is fixedly connected to one side of the cylinder.

[0017] Furthermore, the filter ring is located on one side of the piston, and a silicone pad is provided on the edge of the filter ring.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This solution incorporates a detection component. Through transmission, the drive rod pushes the first and second contact plates into contact, creating a circuit. This energizes the signal generator, sending a signal to the terminal to promptly alert staff to any positional misalignment of the hydraulic rod. This timely intervention reduces the frequency of manual inspections, allows for early detection of hydraulic rod misalignment, and prevents excessive wear on the hydraulic rod and seals over time. Consequently, it avoids significant hydraulic oil leakage from the tensioner and prevents contamination of surrounding equipment.

[0020] 2. This solution incorporates a correction component. Activating the servo motor at the corresponding position in the hydraulic rod's offset direction causes the first contact wheel to move along a horizontal straight line. As the first contact wheel moves, the pressure between it and the hydraulic rod increases, forcing the hydraulic rod to move in the opposite direction and push it back to its initial position. This quickly corrects the hydraulic rod's position, preventing continued small-area contact and friction between the hydraulic rod and the seal. This ensures uniform contact between the seal and the hydraulic rod, extending the seal's service life.

[0021] 3. This solution incorporates first contact wheels, which are moved to the farthest end of the threaded rod. The four first contact wheels then contact the hydraulic rod, effectively limiting its movement and dispersing some of the deflection force. This ensures the hydraulic rod's stability during operation and allows it to operate until the single-wheel task of the hydro-generator is completed. Based on actual conditions, the relay unit can be inspected and replaced, extending its service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the detection component structure of the present invention. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the detection component structure of the present invention. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the corrective component structure of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the end cap structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the corrective component structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the triangular block structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the sealing assembly structure of the present invention. Figure 1 ;

[0031] Figure 10 This is a schematic diagram of the sealing assembly structure of the present invention. Figure 2 ;

[0032] Figure 11 For the present invention Figure 10 A magnified structural diagram at point A;

[0033] Figure 12 This is a schematic cross-sectional view of the piston structure of the present invention.

[0034] Explanation of the labels in the diagram:

[0035] 1. Cylinder body; 2. Connecting parts; 3. Hydraulic rod; 4. End cap;

[0036] 5. Detection component; 51. Fixing rod; 52. Slot; 53. Hinge rod; 54. Coil spring; 55. Arc-shaped rack;

[0037] 56. Correction assembly; 561. Servo motor; 562. Drive gear; 563. Threaded rod; 564. Driven gear; 565. Internal threaded sleeve; 566. First contact wheel;

[0038] 57. Rack; 58. First groove; 59. Gear; 510. Drive rod; 511. Second contact wheel; 512. Vertical rod; 513. Groove; 514. Second contact piece; 515. Elastic ring; 516. First contact piece; 517. Push rod;

[0039] 6. Piston;

[0040] 7. Sealing assembly; 71. Mounting groove; 72. Second groove; 73. Spring telescopic rod; 74. Arc-shaped pressure plate; 75. Fixing plate; 76. First ratchet; 77. Second ratchet; 78. First spring;

[0041] 79. Adsorption assembly; 791. Telescopic groove; 792. Second spring; 793. Cylindrical column; 794. Filter ring;

[0042] 710. Triangle block; 711. Horizontal board. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1 to 12 A relay device for a hydro-generator includes a cylinder body 1, a hydraulic rod 3 is provided on one side of the cylinder body 1, an end cover 4 is fixedly connected to one side of the cylinder body 1, the hydraulic rod 3 is slidably connected inside the end cover 4, a piston 6 is fixedly connected to one side of the hydraulic rod 3, a connector 2 is fixedly connected to the other side of the cylinder body 1, and a detection component 5 for detecting the eccentricity of the hydraulic rod 3 is provided on one side of the end cover 4.

[0045] like Figure 2-6As shown, the detection component 5 includes a fixing rod 51 fixed to one side of the end cap 4 and a groove 513 opened on one side of the end cap 4. A slot 52 is opened on one side of the fixing rod 51. A vertical rod 512 is slidably connected to the inside of the slot 52. A second contact wheel 511 is fixedly connected to the bottom of the vertical rod 512. A top rod 517 is fixedly connected to the outer surface of the vertical rod 512. A hinge rod 53 is rotatably connected to one side of the inside of the slot 52. An arc-shaped rack 55 is fixedly connected to one side of the hinge rod 53. A gear 59 is rotatably connected to the front and rear edges inside the slot 52. A first groove 58 is opened on one side of the inside of the slot 52. A rack 57 is slidably connected to the inside of the first groove 58. A drive rod 510 is fixedly connected to the top of the rack 57. An alarm component is provided inside the groove 513. A correction component 56 is fixedly connected to the bottom edge of the fixing rod 51.

[0046] The alarm component includes a second contact piece 514 fixed at the top of the groove 513, and elastic rings 515 are provided on both sides of the bottom of the second contact piece 514. The bottom of the elastic rings 515 is fixedly connected to a first contact piece 516.

[0047] The hinge rod 53 is located above the top rod 517. The arc-shaped rack 55 meshes with the gear 59. The arc-shaped rack 55 and the rack 57 mesh with each other. One side of the drive rod 510 extends into the interior of the groove 513. The drive rod 510 and the groove 513 slide and adapt to each other. The fixing rod 51 is provided with four sets evenly distributed on one side of the end cover 4.

[0048] The front and rear sides of the fixed rod 51 are fixedly connected with coil springs 54. The connecting shaft between the hinge rod 53 and the slot 52 extends into the interior of the coil spring 54, and the coil spring 54 is fixedly connected to the connecting shaft.

[0049] When the hydraulic rod 3 is stretched, the second contact wheel 511 contacts the surface of the hydraulic rod 3 and slides on the surface of the hydraulic rod 3. Under long-term high-intensity operation, the hydraulic rod 3 will experience uneven stress, causing the axis of the hydraulic rod 3 to deviate from the axis of the cylinder. When the hydraulic rod 3 moves, it will accelerate the wear of the seal between the hydraulic rod 3 and the end cover 4. When the hydraulic rod 3 deviates, it will push the second contact wheel 511 that is biased to one side. The second contact wheel 511 will drive the vertical rod 512 to slide inside the slot 52. The vertical rod 512 will drive the top rod 517 to push one end of the hinge rod 53 upward. The hinge rod 53 will rotate around the connecting shaft. The hinge rod 53 will drive The arc-shaped rack 55 rotates, driving the gear 59 to rotate. The gear 59 drives the rack 57 to move upward, which in turn pushes the drive rod 510 upward inside the groove 513. The drive rod 510 pushes the first contact piece 516 and the second contact piece 514 to make contact, thus forming a circuit. This powers on the signal generator and sends a signal to the terminal, promptly alerting the staff that the hydraulic rod 3 has shifted position and needs to be inspected in time. This reduces the number of manual inspections and allows for timely detection of the hydraulic rod 3's shift, preventing excessive wear of the hydraulic rod 3 and seals over a long period. This also prevents a large amount of hydraulic oil leakage inside the tensioner and avoids contamination of surrounding equipment by the hydraulic oil leakage.

[0050] like Figure 5 and 7 As shown, the correction assembly 56 includes a servo motor 561 fixed to the bottom of the fixing rod 51 and four threaded rods 563 fixed to the end cover 4 near the hydraulic rod 3. The output end of the servo motor 561 is fixedly connected to a drive gear 562. A driven gear 564 is fixedly connected to one side of the outer surface of the threaded rod 563. An internal threaded sleeve 565 is threadedly connected to the outer surface of the threaded rod 563. A first contact wheel 566 is fixedly connected to the bottom of the internal threaded sleeve 565.

[0051] The first contact wheel 566 is in contact with the outer surface of the hydraulic rod 3. The drive gear 562 and the driven gear 564 mesh with each other. The diameter of the driven gear 564 is larger than the diameter of the drive gear 562.

[0052] By detecting the interaction between the components of the detection assembly 5, the displacement of the hydraulic rod 3 can be detected in time. However, even if the displacement of the hydraulic rod 3 is detected, it is not possible to stop the working hydro-generator in time. In order to reduce the continued friction between the hydraulic rod 3 and the seal, the servo motor 561 at the position corresponding to the displacement direction of the hydraulic rod 3 can be activated. The servo motor 561 drives the drive gear 562 to rotate at high speed. The drive gear 562 drives the driven gear 564 to rotate synchronously. The driven gear 564 drives the drive gear 562, which meshes with it, to rotate. Through the action of the thread, the internal threaded sleeve 565 moves on the outer surface of the threaded rod 563, and simultaneously drives the first contact wheel 566 to slide on the surface of the hydraulic rod 3. Because the hydraulic rod 3 has a certain displacement, the trajectory of the first contact wheel 566 is a horizontal straight line, so that the first contact wheel... As the hydraulic rod 566 moves, the increasing pressure between it and the hydraulic rod 3 forces the hydraulic rod 3 to move in the opposite direction, pushing it back to its initial position. This quickly corrects the position of the hydraulic rod 3, preventing it from continuing to rub against the small area of ​​the seal. This ensures uniform contact between the seal and the hydraulic rod 3, extending the seal's lifespan. Simultaneously, the four first contact wheels 566 can move to the farthest end of the threaded rod 563 during operation. The four first contact wheels 566 contact the hydraulic rod 3, acting as a limit and dispersing some of the deflection force, ensuring stable operation. This effectively guarantees the hydraulic rod 3's operation until the single-wheel task of the hydro-generator is completed. Then, based on the actual situation, the relay unit can be inspected and replaced, extending its lifespan.

[0053] like Figure 8-11 As shown, a sealing assembly 7 is provided inside the piston 6. The sealing assembly 7 includes a mounting groove 71 opened on one side of the piston 6, four triangular blocks 710 fixed on one side of the inner surface of the cylinder 1, and an adsorption assembly 79 provided at the edge of one side of the piston 6. Four first ratchet racks 76 are uniformly fixedly connected to one side of the inner surface of the mounting groove 71. A second groove 72 is opened at the edge of one side of the inner surface of the mounting groove 71. A fixing plate 75 is slidably connected inside the second groove 72. A horizontal plate 711 is slidably connected inside the fixing plate 75. A second ratchet rack 77 is fixedly connected to one side of the horizontal plate 711. A first spring 78 is sleeved on the outer surface of the horizontal plate 711. An arc-shaped pressure plate 74 is fixedly connected to the top of the fixing plate 75. A spring telescopic rod 73 is fixedly connected to the bottom of the arc-shaped pressure plate 74.

[0054] The spring telescopic rod 73 consists of a telescopic rod, a telescopic spring, and a telescopic cylinder. The telescopic spring is located inside the telescopic cylinder. The bottom of the telescopic rod is fixed to the telescopic spring. The telescopic rod and the telescopic cylinder slide and adapt to each other. The second ratchet 77 and the first ratchet 76 mesh with each other.

[0055] like Figure 12 As shown, the adsorption assembly 79 includes a telescopic groove 791 opened on one side edge of the piston 6. A second spring 792 is fixedly connected to one side inside the telescopic groove 791. A cylinder 793 is fixedly connected to one side of the second spring 792. A filter ring 794 is fixedly connected to one side of the cylinder 793.

[0056] The filter ring 794 is located on one side of the piston 6, and a silicone pad is provided on the edge of the filter ring 794.

[0057] When the relay is working under high intensity, its internal piston 6 needs to maintain a sealed state with the inner wall of the cylinder 1 at all times. However, as the working time increases, the outer surface of the piston 6 will wear. Over time, the squeezing force between the piston 6 and the inner wall of the cylinder 1 will decrease, which is insufficient to effectively seal the hydraulic oil with strong thrust, resulting in leakage and reduced power of the relay.

[0058] Therefore, when the piston 6 slides inside the cylinder 1, it drives multiple spring telescopic rods 73 to move synchronously. When the spring telescopic rod 73 moves towards the triangular block 710, the spring telescopic rod 73 contacts the inclined surface of the triangular block 710, pushing the spring telescopic rod 73 towards the arc-shaped pressure plate 74. This pushes the arc-shaped pressure plate 74 to squeeze the edge of the piston 6. As the arc-shaped pressure plate 74 moves, it drives the second ratchet 77 to slide on the surface of the first ratchet 76 through the fixing plate 75. When the arc-shaped pressure plate 74 stops moving, the first ratchet 76 slides on the surface of the second ratchet 76. The ratchet 77 is locked and cannot move in the reverse direction, thus effectively fixing the arc-shaped pressure plate 74. This ensures that the piston 6 and the inner wall of the cylinder 1 always maintain moving pressure, quickly sealing the piston 6. When there is no wear or very little wear on the piston 6, the arc-shaped pressure plate 74 no longer moves. After the spring telescopic rod 73 contacts the inclined side of the triangular block 710, it will squeeze the telescopic spring inside the spring telescopic rod 73, causing the telescopic cylinder on the spring telescopic rod 73 to slide on the outer surface of the telescopic rod, thus effectively preventing the triangular block 710 from obstructing the normal movement of the piston 6.

[0059] Some debris and metal shavings may remain inside the hydraulic oil. If these debris gets stuck in the gap between the piston 6 and the cylinder 1, it will accelerate the wear of the inner wall of the cylinder 1, causing the piston 6 to be damaged faster. When the piston 6 moves, it drives the filter ring 794 to move inside the hydraulic oil. The filter ring 794 can intercept and adsorb the metal shavings inside the hydraulic oil, which can reduce the drift of metal shavings in the hydraulic oil and reduce the number of metal shavings entering the contact surface between the piston 6 and the cylinder 1, further ensuring the sealing effect between the piston 6 and the cylinder 1 and avoiding accelerated damage to the piston 6.

[0060] Usage: When the hydraulic rod 3 deviates, it pushes the second contact wheel 511, which is biased to one side. The second contact wheel 511 drives the vertical rod 512 to slide inside the slot 52. The vertical rod 512 drives the top rod 517 to push one end of the hinge rod 53 upward. The hinge rod 53 rotates around the connecting shaft. The hinge rod 53 drives the arc rack 55 to rotate. The arc rack 55 drives the gear 59 to rotate. The gear 59 drives the rack 57 to move upward. The rack 57 then pushes the drive rod 510 upward inside the groove 513. The drive rod 510 pushes the first contact piece 516 and the second contact piece 514 to make contact with each other, so that the circuit is connected. This allows the signal generator to be powered on and send a signal to the terminal, promptly reminding the staff that the hydraulic rod 3 has deviated in position and needs to be inspected in time. This can reduce the number of manual inspections and detect the deviation of the hydraulic rod 3 in time.

[0061] When a misalignment of the hydraulic rod 3 is detected, the servo motor 561 at the corresponding position in the misalignment direction of the hydraulic rod 3 can be activated. The servo motor 561 drives the drive gear 562 to rotate at high speed. The drive gear 562 drives the driven gear 564 to rotate synchronously. The driven gear 564 drives the drive gear 562 to rotate. Through the action of the thread, the internal thread sleeve 565 moves on the outer surface of the drive gear 562, and simultaneously drives the first contact wheel 566 to slide on the surface of the hydraulic rod 3. Since the hydraulic rod 3 has a certain misalignment, the trajectory of the first contact wheel 566 is a horizontal straight line. As the first contact wheel 566 moves, the squeezing force between it and the hydraulic rod 3 will increase, which will force the hydraulic rod 3 to move in the opposite direction and push the hydraulic rod 3 to move back to the initial position. This can quickly restore the position of the hydraulic rod 3 and prevent the hydraulic rod 3 from continuing to have small-area contact friction with the seal.

[0062] Therefore, when the piston 6 slides inside the cylinder 1, it drives multiple spring telescopic rods 73 to move synchronously. When the spring telescopic rod 73 moves towards the triangular block 710, the spring telescopic rod 73 contacts the inclined surface of the triangular block 710, pushing the spring telescopic rod 73 towards the arc-shaped pressure plate 74. This pushes the arc-shaped pressure plate 74 to squeeze the edge of the piston 6. As the arc-shaped pressure plate 74 moves, it drives the second ratchet 77 to slide on the surface of the first ratchet 76 through the fixing plate 75. When the arc-shaped pressure plate 74 stops moving, the first ratchet 76 slides on the surface of the second ratchet 76. The ratchet 77 is locked and cannot move in the reverse direction, thus effectively fixing the arc-shaped pressure plate 74. This ensures that the piston 6 and the inner wall of the cylinder 1 always maintain moving pressure, quickly sealing the piston 6. When there is no wear or very little wear on the piston 6, the arc-shaped pressure plate 74 no longer moves. After the spring telescopic rod 73 contacts the inclined side of the triangular block 710, it will squeeze the telescopic spring inside the spring telescopic rod 73, causing the telescopic cylinder on the spring telescopic rod 73 to slide on the outer surface of the telescopic rod, thus effectively preventing the triangular block 710 from obstructing the normal movement of the piston 6.

[0063] Some debris and metal shavings may remain inside the hydraulic oil. If these debris gets stuck in the gap between the piston 6 and the cylinder 1, it will accelerate the wear of the inner wall of the cylinder 1, causing the piston 6 to be damaged faster. When the piston 6 moves, it drives the filter ring 794 to move inside the hydraulic oil. The filter ring 794 can intercept and adsorb the metal shavings inside the hydraulic oil, which can reduce the drift of metal shavings in the hydraulic oil and reduce the number of metal shavings entering the contact surface between the piston 6 and the cylinder 1, further ensuring the sealing effect between the piston 6 and the cylinder 1 and avoiding accelerated damage to the piston 6.

[0064] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A relay device for a hydro-generator, comprising a cylinder body (1), a hydraulic rod (3) provided on one side of the cylinder body (1), an end cover (4) fixedly connected to one side of the cylinder body (1), a hydraulic rod (3) slidably connected inside the end cover (4), a piston (6) fixedly connected to one side of the hydraulic rod (3), and a connector (2) fixedly connected to the other side of the cylinder body (1). characterized in that A detection component (5) for detecting the eccentricity of the hydraulic rod (3) is provided on one side of the end cap (4); The detection assembly (5) includes a fixing rod (51) fixed to one side of the end cap (4) and a groove (513) formed on one side of the end cap (4). A slot (52) is formed on one side of the fixing rod (51). A vertical rod (512) is slidably connected to the inside of the slot (52). A second contact wheel (511) is fixedly connected to the bottom of the vertical rod (512). A top rod (517) is fixedly connected to the outer surface of the vertical rod (512). A hinge rod (53) is rotatably connected to one side of the inside of the slot (52). One end of the hinge rod (53) is fixedly connected to an arc-shaped rack (55), and the front and rear edges inside the slot (52) are rotatably connected to a gear (59). A first groove (58) is provided on one side inside the slot (52), and a rack (57) is slidably connected inside the first groove (58). A drive rod (510) is fixedly connected to the top of the rack (57). An alarm component is provided inside the groove (513), and a correction component (56) is fixedly connected to the bottom edge of the fixed rod (51). The correction assembly (56) includes a servo motor (561) fixed to the bottom of the fixing rod (51) and four threaded rods (563) fixed to the end cap (4) near the hydraulic rod (3). The output end of the servo motor (561) is fixedly connected to a drive gear (562). A driven gear (564) is fixedly connected to one side of the outer surface of the threaded rod (563). An internal threaded sleeve (565) is threadedly connected to the outer surface of the threaded rod (563). A first contact wheel (566) is fixedly connected to the bottom of the internal threaded sleeve (565). The first contact wheel (566) is in contact with the outer surface of the hydraulic rod (3), the drive gear (562) and the driven gear (564) mesh with each other, and the diameter of the driven gear (564) is larger than the diameter of the drive gear (562); The piston (6) is provided with a sealing assembly (7). The sealing assembly (7) includes a mounting groove (71) on one side of the piston (6), four triangular blocks (710) fixed on one side of the inner surface of the cylinder (1), and an adsorption assembly (79) provided on the edge of one side of the piston (6). Four first ratchet racks (76) are uniformly fixedly connected to one side of the inner surface of the mounting groove (71). A second groove (72) is provided at the edge of one side of the inner surface of the mounting groove (71). A fixing plate (75) is slidably connected inside the second groove (72). A horizontal plate (711) is slidably connected inside the fixing plate (75). A second ratchet rack (77) is fixedly connected to one side of the horizontal plate (711). A first spring (78) is sleeved on the outer surface of the horizontal plate (711). An arc-shaped pressure plate (74) is fixedly connected to the top of the fixing plate (75). A spring telescopic rod (73) is fixedly connected to the bottom of the arc-shaped pressure plate (74).

2. The servomotor for a hydraulic generator according to claim 1, characterized by: The alarm component includes a second contact piece (514) fixed at the top of the groove (513), and elastic rings (515) are provided on both sides of the bottom of the second contact piece (514). A first contact piece (516) is fixedly connected to the bottom of the elastic ring (515). The second contact piece (514) and the elastic ring (515) are connected to an external signal generator.

3. A servomotor for a hydroelectric generator according to claim 2, characterized in that: The hinge rod (53) is located above the top rod (517), the arc-shaped rack (55) meshes with the gear (59), the arc-shaped rack (55) and the rack (57) mesh with each other, one side of the drive rod (510) extends into the interior of the groove (513), the drive rod (510) and the groove (513) slide and adapt to each other, and the fixing rod (51) is provided with four sets evenly distributed on one side of the end cap (4).

4. A relay device for a hydro-generator according to claim 3, characterized in that: The front and rear sides of the fixed rod (51) are fixedly connected with coil springs (54), and the connecting shaft between the hinge rod (53) and the slot (52) extends into the interior of the coil spring (54). The coil spring (54) and the connecting shaft are fixedly connected to each other.

5. A relay device for a hydro-generator according to claim 1, characterized in that: The spring telescopic rod (73) consists of a telescopic rod, a telescopic spring, and a telescopic cylinder. The telescopic spring is located inside the telescopic cylinder. The bottom of the telescopic rod is fixed to the telescopic spring. The telescopic rod and the telescopic cylinder slide and adapt to each other. The second ratchet (77) and the first ratchet (76) mesh with each other.

6. A relay device for a hydro-generator according to claim 5, characterized in that: The adsorption assembly (79) includes a telescopic groove (791) opened on one side edge of the piston (6), a second spring (792) is fixedly connected to one side inside the telescopic groove (791), a cylinder (793) is fixedly connected to one side of the second spring (792), and a filter ring (794) is fixedly connected to one side of the cylinder (793).

7. A relay device for a hydro-generator according to claim 6, characterized in that: The filter ring (794) is located on one side of the piston (6), and the edge of the filter ring (794) is provided with a silicone pad.

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