On-load tap-changer mechanical vibration detection simulation device and detection method

Abstract

The invention provides an on-load tap-changer mechanical vibration detection simulation device and a detection method, and relates to the technical field of on-load tap-changer vibration detection equipment.The device comprises a bottom plate, a working plate, a fixed plate, a transverse rod, a pushing block, a movable frame and a connecting rod, a driving motor drives a disc to rotate, the transverse rod is arranged on the disc, the pushing block is arranged on the transverse rod, and the movable frame is arranged on the working plate. The pushing block can be fixed to a certain position of the cross rod, the pushing block is provided with a movable frame, the width of the movable frame is larger than or equal to the diameter of the disc, a moving space is provided for the pushing block, meanwhile, the movable frame drives the connecting rod to move so as to drive the working plate to move, and then vibration detection is conducted on the workpiece. In addition, people can adjust the position of the pushing block according to the situation so as to change the vibration amplitude and increase or decrease the vibration amplitude, for example, the vibration situation of the working plate can be adjusted by adjusting the position of the pushing block, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of on-load tap changer vibration detection equipment, and in particular to an on-load tap changer mechanical vibration detection simulation device and a detection method. Background Art

[0002] The on-load tap changer is an important part of the power system. When in use, it can adjust the output voltage of the transformer and stabilize the load voltage in the power system, optimizing the overall operation of the power system and the power grid. In addition, it can also prevent equipment damage while working, thereby extending the service life of the equipment.

[0003] The stability of the on-load tapchanger directly affects the operation of the transformer. Therefore, when the on-load tapchanger is in use, it is necessary to perform vibration detection on the on-load tapchanger. The vibration detection of the on-load tapchanger can evaluate the status of the on-load tapchanger, thereby optimizing the maintenance plan of the on-load tapchanger and improving the work efficiency of the staff. When performing vibration detection on the on-load tapchanger, a mechanical vibration detection simulation device is required.

[0004] The Chinese patent with application number CN202410327501.4 and application date 2024-03-21 discloses a bearing radial vibration detection device and detection method thereof, including a device body, wherein the bottom four corners of the device body are provided with adjustment feet, and one side of the adjustment feet is provided with a roller, and the upper surface of the device body is provided with a propulsion mechanism for realizing horizontal displacement of the bearing, and a clamping mechanism for fixing the inner ring of the bearing is rotatably provided on the propulsion mechanism, and a conveying mechanism for loading and unloading the bearing is provided at the bottom of the clamping mechanism, and a monitoring mechanism for bearing radial vibration detection is provided on one side above the clamping mechanism. This technology can effectively adapt to the stable clamping detection of the inner walls of bearings of different specifications, and can protect the bearing from both inside and outside at the same time to avoid the risk of the bearing flying off under high-speed rotation.

[0005] After the workpiece is clamped, the vibration intensity needs to be adjusted during use to obtain the accuracy of the test result. However, the device in the above application does not have a structure for quickly adjusting the test intensity during use, resulting in inaccurate test results and causing unnecessary trouble to the test process. Summary of the invention

[0006] The object of the present invention is to provide a mechanical vibration detection simulation device and detection method for an on-load tap changer, so as to solve the technical problem of inconvenient workpiece vibration amplitude in the prior art. The preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides an on-load tap changer mechanical vibration detection simulation device, comprising:

[0009] A bottom plate, a working plate, and a fixed plate, wherein a bracket is fixedly connected to the lower surface of the bottom plate, and a driving motor is bolted to the lower surface of the bottom plate, and a disc is fixedly connected to the output end of the driving motor to drive the disc to rotate, the working plate is mounted on the upper surface of the bottom plate, the disc is placed on the bottom plate, and is used to drive the working plate to move, and the fixed plate is mounted on the working plate through an adjustment component to adjust the position of the fixed plate;

[0010] A cross bar, the cross bar is fixedly connected to the inner wall of the disc, and a push block is slidably arranged on the surface of the cross bar, and a movable frame is sleeved and connected to the surface of the push block, and a connecting rod is fixedly connected to the surface of the movable frame, and the connecting rod is driven to move by the disc, and the connecting rod is connected to the working plate;

[0011] A limiting assembly is used to fix the pushing block on the cross bar.

[0012] Preferably, the limiting assembly includes a card block, a connecting block, and a first spring. A card groove corresponding to the card block is opened on the upper surface of the cross bar, and the card grooves are evenly spaced on the upper surface of the cross bar, and the end of the card block is spherical. The card block is slidably arranged inside the pushing block, and the left and right sides of the card block are fixedly connected to the connecting block, and the upper surface of the connecting block is fixedly connected to the first spring which plays an elastic reset role, and the other side of the first spring is fixedly connected to the inner wall of the pushing block.

[0013] Preferably, a vertical docking plate is further included, which is fixed to the upper surface of the base plate by bolts, an inner rod is installed on one side of the vertical docking plate, and the inner rod is symmetrically distributed about the center of the vertical docking plate, and a through hole is provided on the side of the working plate for the inner rod to pass through, the upper sleeve of the inner rod is connected to a second spring and one end of the second spring is fixed to one side of the vertical docking plate, and the other side of the second spring can be against the working plate to accumulate elastic force.

[0014] Preferably, a guide block is fixedly connected to the upper surface of the base plate, the connecting rod passes through the interior of the guide block, and the end of the connecting rod is fixedly connected to the surface of the working plate.

[0015] Preferably, the adjustment assembly includes a threaded rod and an external block, the threaded rod is rotatably arranged inside the working plate, and the surface of the threaded rod is threadedly connected to the external block, the external block is installed on the outer wall of the fixed plate, the fixed plate is provided with two locations and is symmetrically distributed about the center of the working plate, and the rotation directions of the threads on the left and right sides of the threaded rod are opposite; so that the fixed plates can approach or move away from each other.

[0016] Preferably, the adjustment assembly further comprises a limit rod, the limit rod is fixedly mounted inside the working plate and is parallel to the threaded rod, and the limit rod runs through the interior of the external block.

[0017] Preferably, an alarm component is also included, and the alarm component includes:

[0018] A long pin, a lap block is provided on one side of the vertical butt joint plate away from the working plate, and the long pin is rotatably mounted on the lap block;

[0019] A rack and pinion assembly, wherein the surface of the working plate away from the disc is fixedly connected with a rack of the rack and pinion assembly, and the surface of the long pin is fixedly connected with a gear of the rack and pinion assembly meshing with the rack, and the rotation of the gear drives the long pin to rotate;

[0020] A force-bearing plate, wherein a connecting column is fixedly connected to the surface of the force-bearing plate, and the connecting column runs through the interior of the vertical butt joint plate, and a long plate is fixedly connected to the end of the connecting column, and a third spring is provided between the force-bearing plate and the vertical butt joint plate, and the third spring can move the force-bearing plate in a direction away from the vertical butt joint plate;

[0021] A pushing cam, wherein the pushing cam is mounted on a sleeve fixed to the long pin, and driven by the long pin, the pushing cam can hit the force-bearing plate, so that the force-bearing plate moves toward the vertical docking plate;

[0022] A knocking block, the knocking block is fixedly connected to the inner wall of the long board;

[0023] A clicker, the clicker is fixedly connected to the surface of the vertical docking plate, and the long plate is driven by the connecting column to move away from the surface of the vertical docking plate. When the pushing cam moves away from the force-bearing plate, the long plate drives the knocking block to knock the clicker under the action of elastic force.

[0024] Preferably, the knocking blocks are distributed at equal intervals on the surface of the long board.

[0025] Preferably, an auxiliary rolling ball is further included, and the auxiliary rolling ball is rotatably arranged on the lower surface of the working plate.

[0026] The present application document also provides a detection method of an on-load tap changer mechanical vibration detection simulation device, using the on-load tap changer mechanical vibration detection simulation device, comprising the following steps:

[0027] S1: Install the on-load tap changer on the working plate, adjust the threaded rod on the adjusting assembly, and the threaded rod cooperates with the limit rod of the adjusting assembly to drive the external block on the adjusting assembly to move to the middle position of the working plate, so that the fixing plates on both sides clamp and fix the workpiece;

[0028] S2: starting the driving motor, the driving motor drives the disc and the pushing block to rotate, the rotation of the pushing block drives the movable frame to make reciprocating linear motion in the horizontal direction, so that the connecting rod connected to the movable frame drives the working plate to make reciprocating linear motion in the horizontal direction, so that the working plate is in a vibrating state;

[0029] S3: When the working plate moves, the working plate drives the rack to move, and then drives the gear meshing with the rack to rotate. The rotation of the gear drives the long pin to rotate, so that the pushing cam on the long pin rotates, and then intermittently pushes the force-bearing plate. The force-bearing plate drives the connecting column to slide inside the vertical docking plate, so that the third spring is squeezed. After the pushing cam moves away from the force-bearing plate, the force-bearing plate and the connecting column return to their original positions under the action of the third spring, so that the knocking block on the surface of the long board intermittently knocks the clicker, and then the clicker makes a sound intermittently.

[0030] The technical solution provided by this application document includes the following beneficial effects:

[0031] The present invention provides a mechanical vibration detection simulation device and a detection method for an on-load tap changer, wherein the detection simulation device comprises a bottom plate, a working plate, and a fixed plate, wherein a bracket is fixedly connected to the lower surface of the bottom plate, the bracket provides support for the bottom edge, a driving motor is bolted to the lower surface of the bottom plate, and a disc is fixedly connected to the output end of the driving motor to drive the disc to rotate, the working plate is mounted on the upper surface of the bottom plate, the disc is placed on the bottom plate, and the disc is used to drive the working plate on the bottom plate to reciprocate, and the fixed plate is mounted on the working plate through an adjustment assembly to adjust the position of the fixed plate so that the fixed plate can clamp the workpiece;

[0032] In order to facilitate the disc to drive the working plate to move, a cross bar is also included. The cross bar is fixedly connected to the inner wall of the disc, and a push block is slidably arranged on the surface of the cross bar, and a movable frame is sleeved and connected to the surface of the push block, and a connecting rod is fixedly connected to the surface of the movable frame. Under the drive of the disc, the connecting rod is driven to move, and the connecting rod is connected to the working plate. People can adjust the position of the push block according to actual conditions, thereby increasing or reducing the vibration of the driving motor on the workpiece;

[0033] In order to limit the position of the push block, the limit assembly limits the push block on the cross bar to prevent position movement during operation.

[0034] Specifically, a driving motor drives the disc to rotate, a cross bar is provided on the disc, a pushing block is provided on the cross bar, the pushing block can be fixed at a certain position of the cross bar, the pushing block is provided with a movable frame, the width of the movable frame is greater than or equal to the diameter of the disc, providing space for the pushing block to move, and at the same time the movable frame drives the connecting rod to move, so as to drive the working plate to move, and then perform vibration detection on the workpiece, people can also adjust the position of the pushing block according to the situation, and then change the amplitude of the vibration, increase or decrease the amplitude of the vibration, such as setting, by adjusting the position of the pushing block to adjust the vibration of the working plate, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 is a schematic structural diagram showing a mechanical vibration detection simulation device for an on-load tap changer according to an exemplary embodiment;

[0037] Figure 2 is a schematic diagram showing a connection structure of a threaded rod and an external block according to an exemplary embodiment;

[0038] Figure 3 The figure is a schematic diagram showing the distribution state structure of auxiliary rolling balls according to an exemplary embodiment.

[0039] Figure 4 is a schematic diagram showing a connection structure between a push block and a movable frame according to an exemplary embodiment;

[0040] Figure 5 is a schematic diagram showing the working state structure of a disc according to an exemplary embodiment;

[0041] Figure 6is a schematic diagram showing a card slot distribution state structure according to an exemplary embodiment;

[0042] Figure 7 yes Figure 6 The enlarged structural diagram at A in the middle;

[0043] Figure 8 is a schematic diagram showing the structure of the push block in working state according to an exemplary embodiment;

[0044] Fig. 9 is a schematic diagram showing a connection structure of a long pin and a gear according to an exemplary embodiment;

[0045] Fig.10 yes Fig. 9 The enlarged structural diagram at B in the middle;

[0046] Fig.11 A schematic diagram showing the structure of the push cam in working state according to an exemplary embodiment

[0047] In the figure: 1. bottom plate; 2. driving motor; 3. working plate; 4. threaded rod; 5. fixed plate; 6. external block; 7. limit rod; 8. auxiliary rolling ball; 9. disc; 10. pushing block; 11. movable frame; 12. connecting rod; 13. guide block; 14. cross bar; 15. vertical docking plate; 16. clamping block; 17. clamping groove; 18. connecting block; 19. first spring; 20. overlapping block; 21. long pin; 22. gear; 23. rack; 24. pushing cam; 25. inner rod; 26. second spring; 27. force plate; 28. connecting column; 29. ​​third spring; 30. long plate; 31. knocking block; 32. clicker. DETAILED DESCRIPTION

[0048] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0049] This specific implementation provides an on-load tap changer mechanical vibration detection simulation device and detection method to solve the technical problem of inconvenient workpiece vibration amplitude in the prior art.

[0050] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention described in the claims. In addition, the entire contents of the configurations shown in the following embodiments are not limited to the solutions required as the invention described in the claims.

[0051] Reference Figure 1-Figure 11 The present invention provides a mechanical vibration detection simulation device for an on-load tap changer, comprising a base plate 1, a working plate 3, and a fixed plate 5. A bracket is fixedly connected to the lower surface of the base plate 1, and the bracket provides support for the base plate 1. A driving motor 2 is bolted to the lower surface of the base plate 1, and a disc 9 is fixedly connected to the output end of the driving motor 2 to drive the disc 9 to rotate. The working plate 3 is mounted on the upper surface of the base plate 1, and the disc 9 is placed on the base plate 1. The disc 9 is used to drive the working plate 3 on the base plate 1 to reciprocate. The fixed plate 5 is mounted on the working plate 3 through an adjustment component to adjust the position of the fixed plate 5 so that the fixed plate 5 can clamp the workpiece;

[0052] In order to facilitate the disc 9 to drive the working plate 3 to move, a crossbar 14 is also included. Figure 4 As shown, the cross bar 14 is fixedly connected to the inner wall of the disc 9, and a push block 10 is slidably provided on the surface of the cross bar 14, and a movable frame 11 is sleeved and connected to the surface of the push block 10, and a connecting rod 12 is fixedly connected to the surface of the movable frame 11. Driven by the disc 9, the connecting rod 12 is driven to move, and the connecting rod 12 is connected to the working plate 3. People can adjust the position of the push block 10 according to actual conditions, thereby increasing or reducing the vibration of the drive motor 2 on the workpiece;

[0053] In order to limit the position of the push block 10, the limiting assembly limits the push block 10 on the cross bar 14 to prevent position movement during operation.

[0054] Specifically, the driving motor 2 drives the disc 9 to rotate, and a cross bar 14 is provided on the disc 9. A pushing block 10 is provided on the cross bar 14. The pushing block 10 can be fixed at a certain position of the cross bar 14. The pushing block 10 is provided with a movable frame 11. The width of the movable frame 11 is greater than or equal to the diameter of the disc 9, providing space for the pushing block 10 to move. At the same time, the movable frame 11 drives the connecting rod 12 to move, so as to drive the working plate 3 to move, and then perform vibration detection on the workpiece. People can also adjust the position of the pushing block 10 according to the situation, thereby changing the amplitude of the vibration, increasing or decreasing the amplitude of the vibration.

[0055] A further optimized solution is provided. In order to facilitate people to adjust the position of the pushing block 10, the limiting assembly includes a card block 16, a connecting block 18, and a first spring 19. A card slot 17 corresponding to the card block 16 is opened on the upper surface of the cross bar 14, and the card slots 17 are evenly spaced on the upper surface of the cross bar 14, and the end of the card block 16 is spherical, which is convenient for people to pull out the card block 16. The card block 16 is slidably arranged inside the pushing block 10, that is, an installation cavity is arranged inside the pushing block 10. Specifically, the installation cavity includes a first cavity and a second cavity, wherein the first cavity is used to install the card block 16, and the second cavity is used to install the connecting block 18 and the first spring 19. Among them, the left and right sides of the card block 16 are fixedly connected with connecting blocks 18, and the upper surface of the connecting block 18 is fixedly connected with a first spring 19 that plays an elastic reset role, and the other side of the first spring 19 is fixedly connected to the inner wall of the pushing block 10. When people need to adjust the position, the card block 16 is pulled outward, the first spring 19 is compressed and continues to have elastic force, and the card block 16 is disengaged from the card slot 17 on the cross bar 14, which is convenient for people to move the pushing block 10 and adjust the position of the pushing block 10. After people release it, under the action of the first spring 19, the card block 16 is inserted into the card slot 17 to fix the card block, and then fix the pushing block 10.

[0056] A further optimized solution is a vertical docking plate 15, which is fixed to the upper surface of the base plate 1 by bolts. An inner rod 25 is installed on one side of the vertical docking plate 15, and the inner rod 25 is symmetrically distributed about the center of the vertical docking plate 15, and the surface of the inner rod 25 is sleeved with a working plate 3 and a second spring 26 is installed on one side of the vertical docking plate 15. The second spring 26 is connected to the working plate 3, but when the working plate 3 moves toward the vertical docking plate 15, the second spring 26 is subjected to an extrusion force, thereby accumulating elastic force. When the working plate moves away from the vertical docking plate 15, the second spring 26 returns to its original state, pushing the working plate to move away from the vertical docking plate 15.

[0057] A further optimized solution is provided. In order to facilitate supporting the connecting rod 12, a guide block 13 is fixedly connected to the upper surface of the base plate 1. The connecting rod 12 runs through the inside of the guide block 13. Since the movable frame 11 is in the shape of a long strip and has a relatively large movable space, the guide block 13 provides support for the connecting rod 12 to stabilize the connecting rod 12. The end of the connecting rod 12 is fixedly connected to the surface of the working plate 3 to drive the working plate 3 to move.

[0058] During the inspection process, the inspection device needs to inspect workpieces of different sizes. If the device cannot quickly clamp different workpieces, the overall use range of the device will be small and the use will be limited, which means that the overall use flexibility of the device is low.

[0059] A Chinese patent with application number CN202210760628.6 and application date 2022-06-30 discloses a vibration resistance performance testing device, including a base, which is arranged on the lower side of the testing device, and universal wheels are fixedly installed at the four corners of its lower surface, and a supporting mechanism is fixedly installed at the middle position of the side walls on both sides, and the supporting mechanism includes a fixed seat fixedly connected to the side walls on both sides of the base and a hydraulic cylinder installed on the upper side of the fixed seat; a limiting mechanism is fixedly installed on both sides of the upper surface of the base, and includes a limiting column fixedly connected to the upper surfaces on both sides of the base and a limiting plate fixedly mounted on the limiting column; a clamping mechanism is provided with two, And it is symmetrically installed on both sides of the upper surface of the support plate, and through holes are opened on both sides of the support plate, and it is slidably sleeved on the limit columns set on both sides of the base through the through holes, and the clamping mechanism includes a fixed block fixed to the upper surface of the support plate and a nut fixed to the side wall of one side of the fixed block; there are two vibration mechanisms, and they are respectively fixedly installed between the base and the support plate, and it includes a motor fixed to the upper surface of the base through a support rod and an irregular cam connected to the output end of the motor; the buffer mechanism is fixedly installed at the center position of the upper surface of the base, and it includes a support column fixed to the center position of the upper surface of the base and a U-shaped seat connected to the upper end of the support column. During the use of this technology, by setting a clamping mechanism, objects to be tested of different sizes can be fixed to expand their detectable range. However, the above adjustments are more troublesome and inconvenient to adjust.

[0060] A further optimized solution is provided. In order to facilitate the adjustment of the position of the fixed plate 5, the adjustment component includes a threaded rod 4 and an external block 6. The threaded rod 4 is rotatably arranged inside the working plate 3, and the surface of the threaded rod 4 is threadedly connected to the external block 6. The external block 6 is installed on the outer wall of the fixed plate 5. The fixed plate 5 is provided with two locations and is symmetrically distributed about the center of the working plate 3. The rotation directions of the threads on the left and right sides of the threaded rod 4 are opposite; so that the fixed plates 5 can be close to or away from each other. In this way, the operator rotates the threaded rod 4 in one direction, so that the threaded rod 4 can simultaneously drive the two fixed plates 5 to move toward or away from each other, thereby being able to clamp different workpieces.

[0061] To further optimize the solution, in order to ensure that the limit rod 7 can move in parallel as a whole, the adjustment assembly also includes a limit rod 7, the limit rod 7 is fixedly installed inside the working plate 3 and is parallel to the threaded rod 4, and the limit rod 7 runs through the inside of the external block 6. Since the external block 6 is installed on the threaded rod 4 and the limit rod 7 at the same time, it can provide good support for the external block 6.

[0062] The Chinese patent with application number CN202410327501.4 and application date 2024-03-21 discloses a bearing radial vibration detection device and detection method thereof, including a device body, wherein the bottom four corners of the device body are provided with adjustment feet, and one side of the adjustment feet is provided with a roller, and the upper surface of the device body is provided with a propulsion mechanism for realizing horizontal displacement of the bearing, and a clamping mechanism for fixing the inner ring of the bearing is rotatably provided on the propulsion mechanism, and a conveying mechanism for loading and unloading the bearing is provided at the bottom of the clamping mechanism, and a monitoring mechanism for bearing radial vibration detection is provided on one side above the clamping mechanism. This technology can effectively adapt to the stable clamping detection of the inner walls of bearings of different specifications, and can protect the bearing from both inside and outside at the same time to avoid the risk of the bearing flying off under high-speed rotation.

[0063] After the workpiece is clamped, it is necessary to adjust the vibration intensity during use to obtain the accuracy of the test result. However, the device in the above application does not have a structure for quickly adjusting the test intensity during use, resulting in inaccurate test results and unnecessary troubles in the test process. At the same time, during use, the device is in a working state, and the staff is required to stay away from the equipment. However, the device in the above application does not have a warning structure during use, and the staff may be accidentally injured.

[0064] A further optimized solution further includes an alarm device, wherein the alarm device includes a long pin 21, a lap block 20 is provided on the side of the vertical docking plate 15 away from the working plate 3, and the long pin 21 is rotatably mounted on the lap block 20;

[0065] The gear rack assembly, the surface of the working plate 3 away from the disc 9 is fixedly connected with the rack 23 of the gear rack assembly, and the surface of the long pin 21 is fixedly connected with the gear 22 of the gear rack assembly meshing with the rack 23, and the rotation of the gear 22 drives the long pin 21 to rotate;

[0066] A force-bearing plate 27, a connecting column 28 is fixedly connected to the surface of the force-bearing plate 27, and the connecting column 28 penetrates the interior of the vertical docking plate 15, and a long plate 30 is fixedly connected to the end of the connecting column 28, and a third spring 29 is provided between the force-bearing plate 27 and the vertical docking plate 15, and the third spring 29 can move the force-bearing plate 27 in a direction away from the vertical docking plate 15;

[0067] A push cam 24 is installed on the sleeve fixed on the long pin 21, and driven by the long pin 21, the push cam 24 can hit the force plate 27, so that the force plate 27 moves toward the vertical docking plate 15;

[0068] A knocking block 31, the knocking block 31 is fixedly connected to the inner wall of the long board 30;

[0069] The clicker 32 is fixedly connected to the surface of the vertical docking plate 15, and the long plate 30 is driven away from the surface of the vertical docking plate 15 by the connecting column 28. When the cam 24 is pushed away from the force-bearing plate 27, the long plate 30 drives the knocking block 31 to knock the clicker 32 under the action of elastic force.

[0070] Specifically, when the working plate 3 moves, it drives the rack 23 to move. Since the gear 22 is meshed with the rack 23, the gear 22 rotates, driving the push cam 24 on the long pin 21 to move, and the push cam 24 drives the force plate 27 to move. The force plate 27 drives the connecting column 28 to move, and the movement of the connecting column 28 drives the long plate 30 to move. Since the long plate 30 is provided with a knocking block 31, and the vertical docking plate 15 is provided with a clicker 32, when the connecting column 28 moves, the third spring 29 accumulates elastic force. Subsequently, since the push cam 24 is away from the force plate 27, the force plate 27 moves in a direction away from the vertical docking plate 15 under the action of the first elastic force, so that the knocking block 31 on the long plate 30 collides with the clicker 32, and then the working plate 3 realizes a reciprocating motion. Such a setting reminds the staff to stay away from the bottom plate 1 to avoid accidental injury.

[0071] To further optimize the solution, the knocking blocks 31 are evenly spaced on the surface of the long board 30, so that the clicker 32 can be evenly stressed.

[0072] A further optimized solution, in order to enable the working plate 3 to move smoothly, also includes an auxiliary rolling ball 8, which is rotatably arranged on the lower surface of the working plate 3.

[0073] This application document provides a further optimization scheme, including the following steps:

[0074] S1: Install the on-load tap changer on the working plate 3, adjust the threaded rod 4 on the adjusting assembly, and the threaded rod 4 cooperates with the limit rod 7 of the adjusting assembly to drive the external block 6 on the adjusting assembly to move to the middle position of the working plate 3, so that the fixing plates 5 on both sides clamp and fix the workpiece;

[0075] S2: Start the driving motor 2, the driving motor 2 drives the disc 9 and the pushing block 10 to rotate, the pushing block 10 rotates and drives the movable frame 11 to make a reciprocating linear motion in the horizontal direction, so that the connecting rod 12 connected to the movable frame 11 drives the working plate 3 to make a reciprocating linear motion in the horizontal direction, so that the working plate 3 is in a vibrating state;

[0076] S3: When the working plate 3 moves, the working plate 3 drives the rack 23 to move, and then drives the gear 22 meshing with the rack 23 to rotate. The rotation of the gear 22 drives the long pin 21 to rotate, so that the pushing cam 24 on the long pin 21 rotates, and then intermittently pushes the force-bearing plate 27. The force-bearing plate 27 drives the connecting column 28 to slide inside the vertical docking plate 15, so that the third spring 29 is squeezed, and after the pushing cam 24 moves away from the force-bearing plate 27, the force-bearing plate 27 and the connecting column 28 return to their original positions under the action of the third spring 29, so that the knocking block 31 on the surface of the long plate 30 intermittently knocks the sound piece 32, and then the sound piece 32 intermittently makes a sound.

[0077] The on-load tap changer mechanical vibration detection simulation device and detection method adopt a new structural design, which can make the fixed plate slide on the working plate, and then can clamp workpieces of different sizes, expand the overall application range of the device, and improve flexibility. At the same time, the connecting rod and the working plate are driven to make reciprocating linear motion in the horizontal direction through the set pushing block and the movable frame to perform vibration detection on the workpiece. During the detection process, the knocking block will hit the clicker again and again, and the clicker plays the role of sound warning, so that the staff stays away from the device and will not be accidentally injured. The overall safety of the device is improved. The specific content is as follows. The specific application document has the following beneficial effects:

[0078] (1) When using the on-load tap changer mechanical vibration detection simulation device, the on-load tap changer needs to be installed on the device first. The specific operation is to place the on-load tap changer on the working plate first, and then rotate the threaded rod. The threaded rod and the external block are threadedly connected. Then, the external block moves to the middle position of the working plate under the action of the threaded rod and the limit rod. Finally, the working plates on the left and right sides clamp and fix the workpiece. The operation process is fast and convenient, and workpieces of different sizes can be quickly clamped, which improves flexibility and reduces limitations.

[0079] Furthermore, during the detection process, the drive motor is started, and the drive motor drives the disc and the push block to rotate. At this time, the connecting rod performs reciprocating linear motion in the horizontal direction under the action of the working plate and the inner rod, and then the working plate performs vibration detection on the workpiece, and in this process, the second spring plays a role of assisting the return;

[0080] Furthermore, when the vibration intensity needs to be adjusted, the card block inside the push block can be pulled to move the end of the card block out of the card slot, and then the push block can be moved to slide on the cross bar. When the card block moves to the required position, the card block is released. At this time, the card block enters the card slot under the action of the connecting block and the first spring, which changes the position of the push block to the center of the circle, thereby changing the displacement distance of the connecting rod, and finally changing the vibration amplitude of the working plate, so that the vibration size can be quickly adjusted, making the device more flexible as a whole and the detection result more accurate.

[0081] (2) The mechanical vibration detection simulation device for the on-load tap changer can drive the rack to move synchronously when the working plate moves. When the rack moves, the long pin will be driven to rotate inside the overlap block through the gear. At this time, the push cam will intermittently push the force plate, and then the force plate will make reciprocating linear motion in the horizontal direction under the action of the thrust, the third spring and the long strip. At this time, the force plate drives the long plate and the knocking block to move synchronously, and then the knocking block can hit the clicker again and again, making the clicker make a sound. The clicker plays the role of sound warning, so that the staff stay away from the device and will not be accidentally injured, thereby improving the overall safety of the device;

[0082] Furthermore, when the working plate moves, it will drive the rack to synchronously make reciprocating linear motion. When the rack makes reciprocating linear motion, the long pin will reciprocate under the action of the rack and the gear. The reciprocating linear motion of the long pin drives the push cam to reciprocate. The reciprocating rotation of the push cam will not affect the work of the force-bearing plate. When the working plate moves, the force-bearing plate will always be in a working state, ensuring the smoothness of the overall operation of the device.

[0083] (3) In the on-load tap changer mechanical vibration detection simulation device, the striking blocks are evenly spaced on the surface of the long plate, which optimizes the striking effect and enables the clicker to work better.

[0084] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. used herein to indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0085] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0086] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0087] It is to be understood that the same or similar parts in the above embodiments can refer to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments. The multiple schemes provided in this application include their own basic schemes, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0088] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present application. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present application.

Claims

1. A mechanical vibration detection simulation device for on-load tap changer, It is characterized by: It comprises a base plate (1), a working plate (3) and a fixed plate (5), wherein the lower surface of the base plate (1) is fixedly connected to a bracket, and the lower surface of the base plate (1) is bolted to a driving motor (2), and the output end of the driving motor (2) is fixedly connected to a disc (9) to drive the disc (9) to rotate, the working plate (3) is mounted on the upper surface of the base plate (1), the disc (9) is placed on the base plate (1) and is used to drive the working plate (3) to move, and the fixed plate (5) is mounted on the working plate (3) through an adjustment component to adjust the position of the fixed plate (5); A cross bar (14), the cross bar (14) is fixedly connected to the inner wall of the disc (9), and a push block (10) is slidably arranged on the surface of the cross bar (14), and a movable frame (11) is sleeved and connected to the surface of the push block (10), and a connecting rod (12) is fixedly connected to the surface of the movable frame (11), and the connecting rod (12) is driven to move by the disc (9), and the connecting rod (12) is connected to the working plate (3); A limiting assembly, wherein the limiting assembly fixes the pushing block (10) on the cross bar (14).

2. The on-load tap changer mechanical vibration detection simulation device according to claim 1, characterized in that: The limiting assembly comprises a clamping block (16), a connecting block (18), and a first spring (19); a clamping groove (17) corresponding to the clamping block (16) is provided on the upper surface of the cross bar (14), and the clamping grooves (17) are evenly spaced on the upper surface of the cross bar (14); the end of the clamping block (16) is spherical; the clamping block (16) is slidably arranged inside the pushing block (10); the left and right sides of the clamping block (16) are fixedly connected to the connecting block (18); the upper surface of the connecting block (18) is fixedly connected to the first spring (19) which plays an elastic reset role; and the other side of the first spring (19) is fixedly connected to the inner wall of the pushing block (10).

3. The on-load tap changer mechanical vibration detection simulation device according to claim 1, characterized in that: It also includes a vertical docking plate (15), which is fixed to the upper surface of the base plate (1) by bolts, an inner rod (25) is installed on one side of the vertical docking plate (15), and the inner rod (25) is symmetrically distributed about the center of the vertical docking plate (15), and the side of the working plate (3) is provided with a through hole for the inner rod (25) to pass through, and the upper sleeve of the inner rod (25) is connected to a second spring (26), and one end of the second spring (26) is fixed to one side of the vertical docking plate (15), and the other side of the second spring (26) can be against the working plate (3) to accumulate elastic force.

4. The on-load tap changer mechanical vibration detection simulation device according to claim 1, characterized in that: A guide block (13) is fixedly connected to the upper surface of the base plate (1), the connecting rod (12) passes through the interior of the guide block (13), and the end of the connecting rod (12) is fixedly connected to the surface of the working plate (3).

5. The on-load tap changer mechanical vibration detection simulation device according to claim 1, characterized in that: The adjustment assembly comprises a threaded rod (4) and an external block (6); the threaded rod (4) is rotatably arranged inside the working plate (3); the surface of the threaded rod (4) is threadedly connected to the external block (6); the external block (6) is installed on the outer wall of the fixed plate (5); the fixed plate (5) is provided with two locations and is symmetrically distributed about the center of the working plate (3); the threads on the left and right sides of the threaded rod (4) have opposite rotation directions; so that the fixed plates (5) can move closer to or farther away from each other.

6. The on-load tap changer mechanical vibration detection simulation device according to claim 5, characterized in that: The adjustment assembly also includes a limiting rod (7), which is fixedly mounted inside the working plate (3) and parallel to the threaded rod (4), and the limiting rod (7) passes through the interior of the external block (6).

7. The on-load tap changer mechanical vibration detection simulation device according to claim 3, characterized in that: Also included is an alarm component, the alarm component comprising: A long pin (21), a lap block (20) is provided on the side of the vertical docking plate (15) away from the working plate (3), and the long pin (21) is rotatably mounted on the lap block (20); A rack and pinion assembly, wherein a surface of the working plate (3) at one end away from the disc (9) is fixedly connected with a rack (23) of the rack and pinion assembly, and a surface of the long pin (21) is fixedly connected with a gear (22) of the rack and pinion assembly meshing with the rack (23), and the rotation of the gear (22) drives the long pin (21) to rotate; A force-bearing plate (27), a connecting column (28) is fixedly connected to the surface of the force-bearing plate (27), and the connecting column (28) runs through the interior of the vertical docking plate (15), and a long plate (30) is fixedly connected to the end of the connecting column (28), and a third spring (29) is provided between the force-bearing plate (27) and the vertical docking plate (15), and the third spring (29) can make the force-bearing plate (27) move in a direction away from the vertical docking plate (15); A pushing cam (24), wherein the pushing cam (24) is mounted on a sleeve fixed to the long pin (21), and driven by the long pin (21), the pushing cam (24) can hit the force-bearing plate (27), so that the force-bearing plate (27) moves toward the vertical docking plate (15); A knocking block (31), wherein the knocking block (31) is fixedly connected to the inner wall of the long board (30); A clicker (32), the clicker (32) is fixedly connected to the surface of the vertical docking plate (15), and the long plate (30) is driven away from the surface of the vertical docking plate (15) by the connecting column (28), and when the pushing cam (24) is away from the force-bearing plate (27), the long plate (30) drives the knocking block (31) to knock the clicker (32) under the action of elastic force.

8. The on-load tap changer mechanical vibration detection simulation device according to claim 7, characterized in that: The knocking blocks (31) are distributed at equal intervals on the surface of the long board (30).

9. The on-load tap changer mechanical vibration detection simulation device according to claim 5, characterized in that: It also includes an auxiliary rolling ball (8), which is rotatably arranged on the lower surface of the working plate (3).

10. A detection method for a mechanical vibration detection simulation device for an on-load tap changer according to any one of claim 7, characterized in that: The steps include: S1: Install the on-load tap changer on the working plate (3), adjust the threaded rod (4) on the adjusting assembly, and the threaded rod (4) cooperates with the limiting rod (7) of the adjusting assembly to drive the external block (6) on the adjusting assembly to move toward the middle position of the working plate (3), so that the fixing plates (5) on both sides clamp and fix the workpiece; S2: starting the driving motor (2), the driving motor (2) drives the disc (9) and the pushing block (10) to rotate, the pushing block (10) rotates and drives the movable frame (11) to perform reciprocating linear motion in the horizontal direction, so that the connecting rod (12) connected to the movable frame (11) drives the working plate (3) to perform reciprocating linear motion in the horizontal direction, so that the working plate (3) is in a vibrating state; S3: When the working plate (3) moves, the working plate (3) drives the rack (23) to move, thereby driving the gear (22) meshing with the rack (23) to rotate, and the rotation of the gear (22) drives the long pin (21) to rotate, so that the pushing cam (24) on the long pin (21) rotates, thereby intermittently pushing the force-bearing plate (27), and the force-bearing plate (27) drives the connecting column (28) to slide inside the vertical docking plate (15), so that the third spring (29) is squeezed, and after the pushing cam (24) moves away from the force-bearing plate (27), the force-bearing plate (27) and the connecting column (28) return to their original positions under the action of the third spring (29), so that the knocking block (31) on the surface of the long plate (30) intermittently knocks the sounding piece (32), and then the sounding piece (32) intermittently makes a sound.

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