Self-adaptive noise reduction equipment for pole-mounted vacuum circuit breaker

Abstract

The invention relates to a pole-mounted vacuum circuit breaker self-adaptive noise reduction device, and relates to the technical field of pole-mounted vacuum circuit breaker noise removal, the pole-mounted vacuum circuit breaker self-adaptive noise reduction device comprises a rack, a first pedestal and a second pedestal are slidably mounted on the rack, a bearing plate is slidably matched with the side part of the rack, a cylinder is hinged to the bearing plate, and a right angle plate is arranged above the cylinder; a transmission shaft in the right-angle plate is in transmission connection with the output end of the induction motor, the outer wall of the transmission shaft is fixedly sleeved with a rotating plate and a first rotating disc, the first rotating disc is internally sleeved with a first belt strip, the outer wall of a rotating rod on the first pedestal and the second pedestal is fixedly sleeved with a second rotating disc, and the outer portion of an extension rod connected with the rotating rod is fixedly sleeved with a rubber ring; iron rings are fixedly installed on the side end faces of the rubber rings, and a plurality of wire rings are arranged on the peripheries of the iron rings in a sleeving mode. According to the invention, over-limit current generated by poor contact between the isolation knife and the isolation knife holder can be eliminated, high-frequency noise generated by abnormal current can be further eliminated, and the pole-mounted vacuum circuit breaker can be ensured to operate stably and normally.

Description

Technical Field

[0001] The invention relates to the technical field of noise reduction of a pole-mounted vacuum circuit breaker, and in particular discloses an adaptive noise reduction device for a pole-mounted vacuum circuit breaker. Background Art

[0002] With the continuous increase in power supply, in order to improve the power supply reliability of the power grid, pole-mounted vacuum circuit breakers are often used in the connection, segmentation and branch lines of the power grid to improve the power supply reliability of the power grid. Pole-mounted vacuum circuit breakers are a type of protection equipment mainly used in high-voltage power systems. They are mainly used to cut off or connect circuits to ensure the stable operation of high-voltage power systems. Their main function is to disconnect the faulty circuit when an overload, short circuit or grounding fault occurs in the power system, so as to protect the safe operation of power equipment and power grids.

[0003] The pole-mounted vacuum circuit breaker is often provided with a plurality of vacuum interrupter chambers, each of which is equipped with a high-voltage input terminal and a high-voltage output terminal. The utility model with the authorization announcement number: CN216435779U discloses an intelligent pole-mounted vacuum circuit breaker, wherein the vacuum tube provided in the above utility model is the vacuum interrupter chamber, and each vacuum interrupter chamber is equipped with an isolating knife, which is mainly used for electrical isolation, and can also separate and combine capacitive current and inductive current; one end of the isolating knife is connected to the high-voltage output terminal of the vacuum interrupter chamber, and the other end of the isolating knife rests on the insulating support, thereby ensuring the electrical isolation capability of the isolating knife; under normal circumstances, an isolating knife seat is installed on the top of the insulating support, which is the lower terminal in the above utility model, and its main function is to facilitate the stability of the isolating knife and avoid the phenomenon of the isolating knife being separated from the insulating support.

[0004] In actual power grid operation, since the pole-mounted vacuum circuit breaker is exposed to the outdoor environment for a long time, the dust, powder and various particulate pollutants in the air will fully contact with the various components of the pole-mounted vacuum circuit breaker. The above-mentioned air suspended matter will gradually cover the surface of the isolating knife seat over time, which will lead to poor contact between the isolating knife and the isolating knife seat in the long run, and further affect the stability of the placement of the isolating knife; if the isolating knife is in an abnormal state, the contact surface between the isolating knife and the isolating knife seat will produce unstable over-limit current, and the above-mentioned abnormal current will generate high-frequency noise, which will at the very least affect the normal work and life of the residents and practitioners around the pole-mounted vacuum circuit breaker, and at worst will cause damage to the pole-mounted vacuum circuit breaker, thereby causing unpredictable power accidents and causing immeasurable losses to the power grid. Summary of the invention

[0005] Aiming at the problem that abnormal current noise occurs due to poor contact between an isolating knife and an isolating knife seat in a current pole-mounted vacuum circuit breaker, the present invention provides an adaptive noise reduction device for a pole-mounted vacuum circuit breaker.

[0006] To solve the above problems, the present invention provides the following technical solutions: A self-adaptive noise reduction device for a column-mounted vacuum circuit breaker comprises a stand, on which a first stand and a second stand are slidably mounted, a side of the first stand is transmission-connected with a receiving plate, the receiving plate is slidably matched with the side of the stand, a cylinder is hingedly mounted on the side of the receiving plate, a right-angle plate which is fastened to the receiving plate is arranged above the cylinder, a transmission shaft is rotationally mounted in the right-angle plate, an induction motor which is fastened to the right-angle plate is arranged below the transmission shaft, the induction motor is inductively electrically connected to the high-voltage output end of the column-mounted vacuum circuit breaker, the output end of the induction motor is transmission-connected to the transmission shaft, and a rotating sleeve is fixedly mounted on the outer wall of the transmission shaft A movable plate and a first turntable, the rotating plate is hinged with the piston rod of the cylinder, and the first turntable is sleeved with a first belt strip; a rotatable rotating rod is placed on the first pedestal and the second pedestal together, and a second turntable is fixedly sleeved on the outer wall of the rotating rod, and the second turntable cooperates with the first belt strip in transmission, and an extension rod is fixedly connected to the end of the rotating rod, and a plurality of uniformly arranged rubber rings are fixedly sleeved on the outside of the extension rod, and the outer ring wall of the rubber ring is in contact with the isolating knife seat of the vacuum circuit breaker, and an iron ring is fixedly installed on the side end surface of the rubber ring, and a plurality of wire rings are sleeved on the outer periphery of the iron ring, and the wire ring can eliminate the current noise of the column-mounted vacuum circuit breaker.

[0007] Preferably, a first guide rail is fixedly installed on the stand, a plurality of first sliders are slidably installed on the first guide rail, the first sliders are fastened to the first pedestal and the second pedestal, a guide rod is provided on the inner side of the first guide rail, support plates are fixedly installed at both ends of the guide rod, the support plates are fastened to the stand, and the first pedestal and the second pedestal are slidably matched with the outer wall of the guide rod.

[0008] Preferably, a second guide rail is fixedly installed on the side of the stand, a second slider is slidably installed on the second guide rail, the second slider is fastened to the receiving plate, a first connecting rod is fixedly installed on the side of the receiving plate, and an end of the first connecting rod is fastened to the first stand.

[0009] Preferably, a vertically arranged through groove is opened in the receiving plate, and an adjustment plate with adjustable height is arranged in the through groove, the top side of the adjustment plate is fastened to the right-angle plate, and a first hinge seat is fixedly installed on the bottom side of the adjustment plate, the first hinge seat is hinged to the cylinder body of the cylinder, a second hinge seat is installed on the end of the piston rod of the cylinder, and the rotating plate is hinged to the piston rod of the cylinder through the second hinge seat.

[0010] Preferably, an adjusting screw is fixedly installed on the top of the adjusting plate, the outer wall of the adjusting screw is threadedly matched with the socket plate, and the adjusting screw is fastened to the socket plate through a nut; a strip groove connected to the through groove is opened in the socket plate, and a flat-head bolt for fastening the adjusting plate to the socket plate is arranged in the strip groove.

[0011] Preferably, the induction motor is provided with a plurality of induction terminals, each of which is inductively electrically connected to each high-voltage output terminal of the pole-mounted vacuum circuit breaker through a powered wire, a third turntable is fixedly mounted on the output end of the induction motor, a fourth turntable is fixedly mounted on the end of the transmission shaft, and the fourth turntable is connected to the third turntable through a second belt transmission.

[0012] Preferably, a fifth turntable is rotatably mounted on the rotating plate, and the first belt strip is jointly mounted on the outer peripheral walls of the first turntable and the fifth turntable. A limit block is fixedly mounted on the side of the right-angle plate, and the limit block is used to limit the maximum rotation angle of the rotating plate. A rubber block is fixedly mounted on the limit block, and the rubber block is in contact with the rotating plate.

[0013] Preferably, the first support seat and the second support seat are respectively fixedly installed in the first seat and the second seat, and the first support seat is fastened to the second support seat by a second connecting rod; a stabilizing bracket is fixedly arranged on the first support seat and the second support seat, and the stabilizing bracket is provided with a triangular opening, and round rods are fixedly installed in two oblique sides of the triangular opening, and the outer wall of the round rod is in contact with the outer wall of the rotating rod, and limiting cone rings are symmetrically arranged on both sides of the stabilizing bracket, and the limiting cone rings are fixedly mounted on the outer wall of the rotating rod.

[0014] Preferably, the first belt strip is made of soft rubber material, and the groove on the outer wall of the second turntable is interference fit with the first belt strip.

[0015] Preferably, the extension rod is made of insulating ceramic material, the number of the rubber rings is the same as the number of the sensing terminals, the diameter of the rubber ring is larger than the diameter of the iron ring, the wire loops are evenly arranged and the maximum pitch angle between the two wire loops does not exceed 18°.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The induction motor in the present invention can sense in real time whether the current at the high-voltage output end of the pole-mounted vacuum circuit breaker is in an abnormal state. The induction motor can drive the transmission shaft and the rotating plate to rotate, thereby transmitting the rotating force to the extension rod through the rotating rod. The extension rod slides linearly under the cooperation of the first seat and the second seat, thereby contacting the outer wall of the rubber ring with the surface of the isolation knife seat, and making the iron ring and the wire ring close to the isolation knife seat. On the one hand, the dirt on the surface of the isolation knife seat can be removed, and on the other hand, the unstable over-limit current on the surface of the knife seat can be absorbed and eliminated, thereby eliminating the current noise generated by the pole-mounted vacuum circuit breaker; the present invention can effectively eliminate the over-limit current generated by the poor contact between the isolation knife and the isolation knife seat, and further eliminate the high-frequency noise generated by the abnormal current, ensuring that the pole-mounted vacuum circuit breaker can run smoothly and normally; 2. The present invention provides a matching structure of the adjusting screw and the nut. On the one hand, the adjusting plate can be stably arranged in the through slot, thereby stably supporting the right-angle plate and the induction motor, which is convenient for the stable transmission of the induction motor. On the other hand, the arrangement position of the adjusting plate in the through slot can be flexibly adjusted, which can not only set the initial position of the rotating plate, but also further limit the maximum rotation angle of the rotating plate, thereby facilitating the transmission cooperation between the first belt strip and the second turntable, thereby improving the flexibility of the device. 3. The present invention sets the diameter of the rubber ring to be larger than the diameter of the iron ring, thereby ensuring that when the rubber ring contacts the isolation knife seat, the wire loop and the isolation knife seat maintain a small distance, which can not only avoid the wire loop from damaging the isolation knife seat, but also effectively absorb and eliminate over-limit current. At the same time, the maximum pitch angle between two adjacent wire loops is set to no more than 18°, which can ensure that at least 20 wire loops are mounted on the iron ring, thereby ensuring the ability of the iron ring and the wire loop to eliminate over-limit current, further improving the practicability of the device, and therefore has a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the 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 work. Figure 1 The overall device structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall device structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the installation structure of the docking plate of the present invention; Figure 4 It is a schematic diagram of the strip groove structure of the present invention; Figure 5It is a schematic diagram of the installation structure of the first hinge seat and the second hinge seat of the present invention; Figure 6 It is a schematic diagram of the installation structure of the limit block and the rubber block of the present invention; Figure 7 It is a schematic diagram of the installation structure of the first pedestal and the second pedestal of the present invention; Figure 8 for Figure 7 A schematic diagram of the structure enlargement in the middle; Fig. 9 It is a schematic diagram of the limiting cone ring structure of the present invention; Fig.10 for Figure 7 A magnified schematic diagram of the structure at B in the middle; In the figure: 1. gantry, 2. first pedestal, 3. second pedestal, 4. receiving plate, 5. cylinder, 6. right angle plate, 7. transmission shaft, 8. induction motor, 9. rotating plate, 10. first turntable, 11. first belt strip, 12. rotating rod, 13. second turntable, 14. extension rod, 15. rubber ring, 16. iron ring, 17. wire ring, 18. first guide rail, 19. first slider, 20. guide rod, 21. support plate, 22. second guide rail, 23. second slider, 24. first connecting rod Rod, 25. Through slot, 26. Adjustment plate, 27. First hinge seat, 28. Second hinge seat, 29. Adjustment bolt, 30. Nut, 31. Strip slot, 32. Flat head bolt, 33. Induction terminal, 34. Third turntable, 35. Fourth turntable, 36. Second belt strip, 37. Fifth turntable, 38. Limit block, 39. Rubber block, 40. First support seat, 41. Second support seat, 42. Second connecting rod, 43. Stable bracket, 44. Round rod, 45. Limit cone ring. DETAILED DESCRIPTION

[0018] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] This specific embodiment provides a pole-mounted vacuum circuit breaker adaptive noise reduction device, such as Figure 1-Figure 10As shown; it includes a stand 1, the bottom of the stand 1 is provided with two footrests, and the two footrests can be fastened to the footrest of the column-mounted vacuum circuit breaker through a steel frame, so that the device and the column-mounted vacuum circuit breaker are assembled into an integrated structure. A table is provided on the top of the stand 1, and a first guide rail 18 is fixedly installed on the table of the stand 1. The first guide rail 18 is provided with two and symmetrically arranged on the table of the stand 1. Two first sliders 19 are installed on each first guide rail 18. The first sliders 19 are electromagnetic sliders. By electrically connecting the first sliders 19 to an external power supply device, the first sliders 19 can be driven to slide linearly along the first guide rails 18; the first pedestal 2 and the second pedestal 3 are fixedly connected above the first slider 19, the bottom of the first pedestal 2 is fastened to the two first sliders 19, and the bottom of the second pedestal 3 is fastened to the two first sliders 19, so that the first pedestal 2 and the second pedestal 3 are slidably installed above the two first guide rails 18.

[0020] A guide rod 20 is arranged on the inner side of the two first guide rails 18, and the length of the guide rod 20 is smaller than that of the first guide rail 18. Support plates 21 are fixedly installed at both ends of the guide rod 20, and the support plates 21 are tightly connected to the table plate of the stand 1. The bottom of the first pedestal 2 and the second pedestal 3 are provided with a sliding part that slides with the outer wall of the guide rod 20. By setting the guide rod 20, the first pedestal 2 and the second pedestal 3 can be effectively supported, thereby enhancing the stability of the first pedestal 2 and the second pedestal 3 when performing linear sliding along the first guide rail 18.

[0021] A second guide rail 22 is fixedly installed on the side of the table of the stand 1, and a second slider 23 is slidably installed on the second guide rail 22. The end surface of the second slider 23 is fastened with a receiving plate 4, and the receiving plate 4 is arranged on the side of the stand 1 and arranged vertically. A first connecting rod 24 is fixedly installed on the side of the receiving plate 4, and the end of the first connecting rod 24 facing the stand 1 is fastened to the first pedestal 2. By setting the matching structure of the second guide rail 22 and the second slider 23, the receiving plate 4 can be driven to slide together when the first pedestal 2 slides linearly along the first guide rail 18, and the stability of the connection between the receiving plate 4 and the first pedestal 2 can be enhanced by adding the connection structure of the first connecting rod 24.

[0022] A vertically arranged through slot 25 is provided in the receiving plate 4, and an adjusting plate 26 is arranged in the through slot 25, and the plate surfaces on both sides of the adjusting plate 26 are slidably matched with the inner slot walls on both sides of the through slot 25; an adjusting screw 29 is fixedly installed on the top of the adjusting plate 26, and the bottom end of the adjusting screw 29 is fastened to the adjusting plate 26, and the top end of the adjusting screw 29 can pass through the receiving plate 4 and be arranged on the top of the receiving plate 4, and the outer wall of the adjusting screw 29 is threadedly matched with the receiving plate 4, and the adjusting screw 29 is fastened to the receiving plate 4 through a nut 30; by providing the matching structure of the adjusting screw 29 and the nut 30, on the one hand, the adjusting plate 26 can be stably arranged in the through slot 25, and on the other hand, the arrangement position of the adjusting plate 26 in the through slot 25 can be flexibly adjusted, thereby improving the flexibility of the device.

[0023] The top side of the adjustment plate 26 is fastened with a right-angle plate 6, and the receiving plate 4 is provided with a strip groove 31 connected with the through groove 25, and the strip groove 31 is provided with a flat head bolt 32, and two flat head bolts 32 are provided. The flat head bolts 32 can fasten the adjustment plate 26 and the receiving plate 4, thereby further fixing the arrangement position of the adjustment plate 26. The bottom side of the adjustment plate 26 is fixedly installed with a first hinge seat 27, and the first hinge seat 27 is hingedly installed with a cylinder 5, and the piston rod of the cylinder 5 is arranged upward, and the bottom end of the cylinder body of the cylinder 5 is hinged with the first hinge seat 27, and the piston rod end of the cylinder 5 is installed with a second hinge seat 28, and the second hinge seat 28 is hinged with a rotating plate 9.

[0024] The right angle end of one end of the right angle plate 6 is fastened to the adjustment plate 26, the right angle end in the middle of the right angle plate 6 is fixedly installed with an induction motor 8, the right angle end of the other end of the right angle plate 6 is installed with a transmission shaft 7, and the transmission shaft 7 is arranged above the induction motor 8. The housing of the induction motor 8 is fastened to the right angle plate 6, and the output end of the induction motor 8 is fixedly installed with a third rotating disk 34, and the third rotating disk 34 and the induction motor 8 are arranged on both sides of the right angle plate 6 respectively, and the third rotating disk 34 can be driven to rotate by setting the induction motor 8; the end of the transmission shaft 7 is fixedly sleeved with a fourth rotating disk 35, and the fourth rotating disk 35 and the third rotating disk 34 are arranged on the same side of the right angle plate 6, and the arrangement height of the fourth rotating disk 35 is higher than the third rotating disk 34; a second belt strip 36 is sleeved between the third rotating disk 34 and the fourth rotating disk 35, and the third rotating disk 34 and the fourth rotating disk 35 can be transmission-connected by setting the second belt strip 36, and the induction motor 8 drives the transmission shaft 7 to rotate.

[0025] The rotating plate 9 is fixedly mounted on the outer wall of the transmission shaft 7, and the transmission shaft 7 can drive the rotating plate 9 to rotate together; the first turntable 10 is also fixedly mounted on the outer wall of the transmission shaft 7, and the first turntable 10 and the fourth turntable 35 are respectively arranged on both sides of the rotating plate 9, and the fifth turntable 37 is rotatably installed on the rotating plate 9, and the first belt strip 11 is jointly mounted between the first turntable 10 and the fifth turntable 37. When the transmission shaft 7 rotates, under the support of the fifth turntable 37, the first belt strip 11 can rotate in the grooves on the outer walls of the first turntable 10 and the fifth turntable 37, thereby forming a linkage structure.

[0026] Among them, a limit block 38 is fixedly installed on the side of the right-angle plate 6. When the rotating plate 9 rotates with the transmission shaft 7, the limit block 38 is used to limit the maximum rotation angle of the rotating plate 9, so that the first belt strip 11 arranged on one side of the rotating plate 9 is in a horizontal state. A rubber block 39 is fixedly installed on the limit block 38, and the rubber block 39 is in contact with the rotating plate 9, so that the rubber block 39 and the rotating plate 9 form a soft contact structure, which is convenient for limiting the rotation of the rotating plate 9 and avoiding structural damage to the rotating plate 9.

[0027] The first support seat 40 and the second support seat 41 are fixedly installed in the first seat 2 and the second seat 3 respectively, and the first support seat 40 and the second support seat 41 are fastened together by a second connecting rod 42, so that the first support seat 40 and the second support seat 41 are assembled into an integrated structure; the first support seat 40 and the second support seat 41 are fixedly provided with a stabilizing bracket 43, and the stabilizing bracket 43 is provided with a triangular opening, and the opening of the triangular opening is arranged upward, and round rods 44 are fixedly installed in the two oblique sides of the triangular opening, and a part of the round rod 44 is arranged in the triangular opening. A rotating rod 12 is placed on the two stable brackets 43. The outer wall of the round rod 44 contacts the outer wall of the rotating rod 12. A second rotating disk 13 is fixedly mounted on the outer wall of the rotating rod 12. The second rotating disk 13 is in transmission cooperation with the first belt strip 11. The first belt strip 11 is made of soft rubber material. The groove on the outer wall of the second rotating disk 13 is in interference fit with the first belt strip 11. When the first belt strip 11 rotates, the second rotating disk 13 can be driven to rotate together, so that the rotating rod 12 rotates on the stable bracket 43. The limiting cone rings 45 are symmetrically arranged on both sides of each stable bracket 43. The limiting cone rings 45 are fixedly mounted on the outer wall of the rotating rod 12. The arrangement structure of the rotating rod 12 can be further fixed by setting the limiting cone rings 45 to prevent the rotating rod 12 from slipping out of the stable bracket 43.

[0028] The induction motor 8 is provided with three induction terminals 33, each of which can be electrically and inductively connected to each high-voltage output terminal of the pole-mounted vacuum circuit breaker through a powered wire; the end of the rotating rod 12 is fixedly connected to an extension rod 14, and the outside of the extension rod 14 is fixedly sleeved with three evenly arranged rubber rings 15, and the number of the rubber rings 15 is the same as the number of high-voltage output terminals of the pole-mounted vacuum circuit breaker; the outer ring wall of each rubber ring 15 can contact the isolation knife seat of the vacuum circuit breaker, and the side end surface of the rubber ring 15 is fixedly installed with an iron ring 16, and the outer periphery of the iron ring 16 is sleeved with multiple wire loops 17, and when the wire loop 17 is close to the isolation knife seat, the unstable over-limit current can be eliminated, thereby eliminating the current noise of the pole-mounted vacuum circuit breaker.

[0029] Among them, the extension rod 14 is made of insulating ceramic material, so as to protect the main structure of the equipment and avoid damage to the parts of the equipment; the diameter of the rubber ring 15 is larger than the diameter of the iron ring 16, so as to ensure that when the rubber ring 15 contacts the isolation knife seat, the wire loop 17 and the isolation knife seat maintain a small distance, on the one hand, it can avoid the wire loop 17 from causing damage to the isolation knife seat, on the other hand, it can effectively absorb and eliminate over-limit current; in addition, the wire loops 17 are evenly arranged and the pitch angle between the two wire loops 17 does not exceed 18° at most, so as to ensure the ability of the iron ring 16 and the wire loop 17 to eliminate over-limit current.

[0030] The working principle of the present invention is: When installing the pole-mounted vacuum circuit breaker, the device and the pole-mounted vacuum circuit breaker can be installed together on the foot of the pole through the stand 1, so that the device and the pole-mounted vacuum circuit breaker are assembled into an integrated structure. The three high-voltage output terminals of the pole-mounted vacuum circuit breaker are electrically connected to the three induction terminals 33 by using energized wires. When the pole-mounted vacuum circuit breaker generates an over-limit current due to poor contact between the isolating knife and the isolating knife seat, the current generated by the high-voltage output terminal of the pole-mounted vacuum circuit breaker will be in an abnormal state. After the induction motor 8 senses the abnormality under the electrical connection of the induction terminal 33, the induction motor 8 is energized to drive the third rotating disk 34 to rotate, so that the transmission shaft 7 rotates, and under the limiting action of the limit block 28 and the rubber block 39, the rotating plate 9 rotates clockwise and stops rotating until the first belt strip 11 is arranged in the groove of the second rotating disk 13. The first belt strip 11 can drive the second rotating disk 13 to rotate, and further rotate the rotating rod 12 and the extension rod 14. During this period, the first slider 19 can slide linearly on the first guide rail 18, thereby moving the first pedestal 2 and the second pedestal 3, and further allowing the extension rod 14 to drive the rubber ring 15 and the iron ring 16 to move linearly until each rubber ring 15 corresponds to each isolation knife seat one by one; the extension rod 14 can drive the rubber ring 15 to rotate, so that the outer wall of the rubber ring 15 contacts the surface of the isolation knife seat, thereby removing dirt on the surface of the isolation knife seat; at the same time, the iron ring 16 and the wire ring 17 will approach the isolation knife seat, and absorb and eliminate the unstable over-limit current on the surface of the knife seat through the wire ring 17, thereby eliminating the current noise generated by the pole-mounted vacuum circuit breaker.

[0031] In addition, when installing the equipment, the operator can set the position of the adjustment plate 26 in the through groove 25 to set the initial position of the rotating plate 9, and further limit the maximum rotation angle of the rotating plate 9, thereby facilitating the transmission cooperation between the first belt strip 11 and the second turntable 13.

[0032] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pole-mounted vacuum circuit breaker adaptive noise reduction device, comprising a stand (1), characterized in that: A first pedestal (2) and a second pedestal (3) are slidably mounted on the pedestal (1); a receiving plate (4) is transmission-connected to the side of the first pedestal (2); the receiving plate (4) is slidably matched with the side of the pedestal (1); a cylinder (5) is hingedly mounted on the side of the receiving plate (4); a right-angle plate (6) which is fixedly connected to the receiving plate (4) is arranged above the cylinder (5); a transmission shaft (7) is rotatably mounted inside the right-angle plate (6); an induction motor (8) which is fixedly connected to the right-angle plate (6) is arranged below the transmission shaft (7); the induction motor (8) is inductively electrically connected to the high-voltage output end of the column-mounted vacuum circuit breaker; the output end of the induction motor (8) is transmission-connected to the transmission shaft (7); a rotating plate (9) and a first rotating disk (10) are fixedly mounted on the outer wall of the transmission shaft (7); the rotating plate (9) The first rotating disk (10) is hingedly connected to the piston rod of the cylinder (5); a first belt strip (11) is sleeved inside the first rotating disk (10); a rotatable rotating rod (12) is placed on the first pedestal (2) and the second pedestal (3); a second rotating disk (13) is fixedly sleeved on the outer wall of the rotating rod (12); the second rotating disk (13) is in transmission cooperation with the first belt strip (11); an extension rod (14) is fixedly connected to the end of the rotating rod (12); a plurality of uniformly arranged rubber rings (15) are fixedly sleeved on the outside of the extension rod (14); the outer ring wall of the rubber ring (15) is in contact with the isolation knife seat of the vacuum circuit breaker; an iron ring (16) is fixedly installed on the side end surface of the rubber ring (15); a plurality of wire rings (17) are sleeved on the outer periphery of the iron ring (16); the wire ring (17) can eliminate the current noise of the column-mounted vacuum circuit breaker.

2. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 1, characterized in that: A first guide rail (18) is fixedly mounted on the stand (1), a plurality of first sliders (19) are slidably mounted on the first guide rail (18), the first sliders (19) are tightly connected to the first pedestal (2) and the second pedestal (3), a guide rod (20) is arranged on the inner side of the first guide rail (18), support plates (21) are fixedly mounted at both ends of the guide rod (20), the support plates (21) are tightly connected to the stand (1), and the first pedestal (2) and the second pedestal (3) are slidably matched with the outer wall of the guide rod (20).

3. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 2, characterized in that: A second guide rail (22) is fixedly mounted on the side of the platform (1), a second slider (23) is slidably mounted on the second guide rail (22), the second slider (23) is tightly connected to the receiving plate (4), a first connecting rod (24) is fixedly mounted on the side of the receiving plate (4), and an end of the first connecting rod (24) is tightly connected to the first platform (2).

4. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 1, characterized in that: A vertically arranged through slot (25) is provided in the receiving plate (4), and an adjustable height adjustment plate (26) is arranged in the through slot (25). The top side surface of the adjustment plate (26) is fastened to the right-angle plate (6), and a first hinge seat (27) is fixedly installed on the bottom side surface of the adjustment plate (26). The first hinge seat (27) is hinged to the cylinder body of the cylinder (5), and a second hinge seat (28) is installed at the end of the piston rod of the cylinder (5). The rotating plate (9) is hinged to the piston rod of the cylinder (5) via the second hinge seat (28).

5. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 4, characterized in that: An adjusting screw (29) is fixedly mounted on the top of the adjusting plate (26); the outer wall of the adjusting screw (29) is threadably matched with the receiving plate (4); the adjusting screw (29) is fastened to the receiving plate (4) via a nut (30); a strip groove (31) connected to the through groove (25) is provided in the receiving plate (4); a flat-head bolt (32) for fastening the adjusting plate (26) to the receiving plate (4) is provided in the strip groove (31).

6. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 1, characterized in that: The induction motor (8) is provided with a plurality of induction terminals (33), each of which is inductively electrically connected to each high-voltage output end of the pole-mounted vacuum circuit breaker via an energized wire, a third rotating disk (34) is fixedly mounted on the output end of the induction motor (8), a fourth rotating disk (35) is fixedly mounted on the end of the transmission shaft (7), and the fourth rotating disk (35) is connected to the third rotating disk (34) via a second belt strip (36).

7. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 1, characterized in that: A fifth turntable (37) is rotatably mounted on the rotating plate (9); the first belt strip (11) is mounted on the outer peripheral walls of the first turntable (10) and the fifth turntable (37); a limit block (38) is fixedly mounted on the side of the right-angle plate (6); the limit block (38) is used to limit the maximum rotation angle of the rotating plate (9); a rubber block (39) is fixedly mounted on the limit block (38); and the rubber block (39) is in contact with the rotating plate (9).

8. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 1, characterized in that: A first support seat (40) and a second support seat (41) are fixedly mounted in the first pedestal (2) and the second pedestal (3), respectively. The first support seat (40) and the second support seat (41) are fastened to each other via a second connecting rod (42). A stabilizing bracket (43) is fixedly mounted on the first support seat (40) and the second support seat (41). The stabilizing bracket (43) is provided with a triangular opening. Round rods (44) are fixedly mounted in two oblique sides of the triangular opening. The outer wall of the round rod (44) contacts the outer wall of the rotating rod (12). Limiting cone rings (45) are symmetrically mounted on both sides of the stabilizing bracket (43). The limiting cone rings (45) are fixedly sleeved on the outer wall of the rotating rod (12).

9. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 1, characterized in that: The first belt strip (11) is made of soft rubber material, and the groove on the outer wall of the second rotating disk (13) is in interference fit with the first belt strip (11).

10. The pole-mounted vacuum circuit breaker adaptive noise reduction device according to claim 1, characterized in that: The extension rod (14) is made of insulating ceramic material, the number of the rubber rings (15) arranged is the same as the number of the induction terminals (33) arranged, the diameter of the rubber ring (15) is larger than the diameter of the iron ring (16), the wire loops (17) are evenly arranged and the pitch angle between two wire loops (17) does not exceed 18° at most.

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