High-voltage circuit breaker emergency opening device and opening method thereof

Abstract

The invention discloses a high-voltage circuit breaker emergency opening device and an opening method thereof. The high-voltage circuit breaker emergency opening device comprises an opening box, a closing motor, a driving gear, a wide gear, an opening rotating shaft, an opening gear, a first electric push rod, a square adjusting rod, an adjusting rack, a positioning rack, a second electric push rod, an adjusting pull rod and a positioning insertion rod. Working of the second electric push rod or the first electric push rod is utilized to drive the adjusting rack and the opening gear to move horizontally, so that the adjusting rack and the opening gear can be rapidly separated, elasticity of the spring is compressed powerfully, the spring pushes the adjusting pull rod to move upwards to drive the high-voltage circuit breaker to be rapidly opened, the opening operation difficulty is effectively reduced, and the operation efficiency is improved. The maintenance time is shortened; by utilizing the redundancy design of two different opening modes, when one method fails, the other method can still execute the opening operation, so that the reliability and the safety of the system are improved, a high-voltage circuit can be effectively cut off under various conditions, and accidents are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage circuit breakers, in particular to an emergency tripping device for a high-voltage circuit breaker and a tripping method thereof. Background Art

[0002] A high-voltage circuit breaker (or high-voltage switch) plays a control role in a high-voltage circuit and is used to connect or disconnect the circuit during normal operation. It is one of the important electrical components in a high-voltage circuit. The high-voltage circuit breaker usually adopts a "remote" operation mode, that is, remote operation is carried out through a microcomputer.

[0003] However, during the operation of the high-voltage circuit breaker, it is inevitable that the control loop fails, resulting in the inability to remotely control the switch. At this time, the operator needs to manually disconnect the switch in the "local" mode and transfer the busbar to the hot standby state. The operation process is complex and the maintenance time is long. At the same time, this operation mode makes the operator very close to the high-voltage circuit breaker, and safety accidents are likely to occur. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and design an emergency tripping device for a high-voltage circuit breaker and a tripping method thereof.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: An emergency tripping device for a high-voltage circuit breaker, comprising:

[0006] A tripping box is installed below the high-voltage circuit breaker. A closing motor is installed on one side surface of the tripping box. A driving shaft is installed at the rotating end of the closing motor. The driving shaft is connected to the tripping box through a one-way bearing. A driving gear is installed on the driving shaft, and the driving gear is located inside the tripping box;

[0007] A wide gear is installed on one side inside the tripping box and is located below the driving gear and meshes with the driving gear;

[0008] A tripping rotating shaft is arranged on one side of the wide gear. One end of the tripping rotating shaft is slidably sleeved with a rotating shaft sleeve. The rotating shaft sleeve is connected to the tripping box through a bearing. A tripping gear is installed thereon and meshes with the wide gear. The other end of the tripping rotating shaft is provided with a tripping shaft seat. The tripping shaft seat is connected to the tripping rotating shaft through a bearing;

[0009] A first electric push rod is installed on one side surface of the tripping box. Its telescopic end is inserted into the tripping box and is connected to the tripping shaft seat;

[0010] A square adjusting rod is arranged on one side of the tripping gear. Limit baffles are arranged at the upper and lower ends thereof. A concave adjusting groove is formed on one side thereof. Horizontal sliding rods are arranged on the upper and lower sides inside the concave adjusting groove;

[0011] The adjusting rack is arranged on one side of the opening gear and meshes with the opening gear. One end of it is inserted into the concave adjusting groove and is slidably sleeved on two transverse sliding rods. One side of it is provided with an adjusting sliding rod, and adjusting sliding seats are installed at the upper and lower ends on one side. The adjusting sliding seats are slidably sleeved on the adjusting sliding rod. The other side of it is provided with a positioning sliding rod, and a positioning rack is slidably installed on the positioning sliding rod. The positioning rack is in sliding contact with the adjusting rack, and the positioning rack is connected to the opening box through a telescopic rod;

[0012] The second electric push rod is installed on the side surface of one side of the opening box. The number of the second electric push rods is two and they are vertically and parallelly distributed. Its telescopic end is inserted into the opening box and is connected to both ends of the adjusting sliding rod;

[0013] The adjusting pull rod is vertically arranged in the opening box and is installed at the upper end of the square adjusting rod. A reinforcing sleeve is slidably sleeved on it, and the reinforcing sleeve is connected to the upper surface of the opening box;

[0014] The positioning insertion rod is installed on the lower surface inside the opening box and is slidably inserted into the lower end of the square adjusting rod. A strong compression spring is sleeved on it, and the strong compression spring is located between the opening box and the limit baffle;

[0015] The limit detection rod is installed on the side surface inside the opening box and is located between two limit baffles. An infrared distance measuring sensor is installed on it.

[0016] In the present invention, the opening gear is the same as the driving gear and has the same width as the adjusting rack and the positioning rack.

[0017] In the present invention, the gear thickness of the opening gear is half of the gear thickness of the wide gear.

[0018] In the present invention, when the limit detection rod contacts the limit baffle at the upper end or the lower end of the square adjusting rod, the tooth grooves of the positioning rack are aligned with the tooth grooves of the adjusting rack.

[0019] In the present invention, the width of the adjusting rack is half of the groove width of the concave adjusting groove.

[0020] In the present invention, the wide gear and the concave adjusting groove are arranged in a semi-offset manner.

[0021] In the present invention, the adjusting pull rod is connected to the gear box of the high-voltage circuit breaker.

[0022] The present invention provides a method A for opening a high-voltage circuit breaker emergency opening device. When it is necessary to perform an emergency opening on the high-voltage circuit breaker, the following steps are adopted:

[0023] A1: Control the two second electric push rods to start contracting, so that they drive the adjusting sliding rod to move and move from one side inside the concave adjusting groove to the other side;

[0024] A2: At this time, the adjusting rack is separated from the opening gear, enabling the square adjusting rod to drive the adjusting pull rod to move upward by the elasticity of the strong compression spring. Meanwhile, the opening gear meshes with the positioning rack to position the opening gear.

[0025] A3: As the adjusting pull rod moves upward, it drives the gearbox of the high-voltage circuit breaker to operate, thereby controlling the high-voltage circuit breaker to perform an opening operation, so that the high-voltage circuit breaker cuts off the high-voltage line.

[0026] The present invention also provides a tripping method B for an emergency tripping device of a high-voltage circuit breaker. When an emergency trip of the high-voltage circuit breaker is required, the following steps are adopted:

[0027] B1: Control the electric push rod to extend at the beginning, so that it pushes the opening rotating shaft to move, and then the opening gear moves a certain distance.

[0028] B2: After the opening gear moves a certain distance, the opening gear is separated from the adjusting rack, enabling the square adjusting rod to drive the adjusting pull rod to move upward by the elasticity of the strong compression spring. Meanwhile, the opening gear meshes with the positioning rack and still remains in mesh with the wide gear.

[0029] B3: As the adjusting pull rod moves upward, it drives the gearbox of the high-voltage circuit breaker to operate, thereby controlling the high-voltage circuit breaker to perform an opening operation, so that the high-voltage circuit breaker cuts off the high-voltage line.

[0030] Advantageous Effects

[0031] An emergency tripping device for a high-voltage circuit breaker and its tripping method made by using the technical solution of the present invention have the following advantageous effects:

[0032] 1. By using the operation of the second electric push rod or the first electric push rod, the adjusting rack and the opening gear are driven to translate, enabling the adjusting rack and the opening gear to be quickly separated. Furthermore, by the elasticity of the strong compression spring, it pushes the adjusting pull rod to move upward to drive the high-voltage circuit breaker to perform a quick trip, effectively reducing the operation difficulty of the trip and shortening its maintenance time.

[0033] 2. By using the redundant design of two different tripping methods, it is ensured that when one method fails, the other method can still perform the tripping operation, improving the reliability and safety of the system, ensuring that the high-voltage circuit can be effectively cut off under various circumstances, and preventing accidents. Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of an emergency tripping device for a high-voltage circuit breaker according to the present invention;

[0035] Figure 2 is a top cross-sectional view of an emergency tripping device for a high-voltage circuit breaker according to the present invention;

[0036] Figure 3 It is the top view of the opening shaft of the present invention;

[0037] Figure 4 It is the front view of the square adjusting rod of the present invention;

[0038] Figure 5 It is the connection schematic diagram of the adjusting rack of the present invention;

[0039] Figure 6 It is the front view of the adjusting rack of the present invention;

[0040] In the figure:

[0041] 1. Opening box; 11. Closing motor; 12. Driving shaft; 13. One-way bearing; 14. Driving gear; 2. Wide gear; 3. Opening shaft; 31. Shaft sleeve; 32. Opening gear; 33. Opening shaft seat; 34. Electric push rod I; 4. Square adjusting rod; 41. Limit baffle; 42. Concave adjusting groove; 43. Horizontal slide bar; 5. Adjusting rack; 51. Adjusting slide bar; 52. Adjusting slide seat; 53. Positioning slide bar; 54. Positioning rack; 55. Telescopic rod; 56. Electric push rod II; 6. Adjusting pull rod; 61. Reinforcing sleeve; 7. Positioning plug rod; 71. Strong compression spring; 8. Limit detection rod; 81. Infrared distance measuring sensor. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper / lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "set / sleeved with", "socket connection", "connection", etc. should be understood in a broad sense. For example, "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] Please refer to Figures 1-6 , the present invention provides a technical solution: a high-voltage circuit breaker emergency tripping device, including: a tripping box 1, installed below the high-voltage circuit breaker, on one side surface of which a closing motor 11 is installed, a driving shaft 12 is installed at the rotating end of the closing motor 11, the driving shaft 12 is connected to the tripping box 1 through a one-way bearing 13, a driving gear 14 is installed on the driving shaft 12, and the driving gear 14 is located inside the tripping box 1.

[0046] In an embodiment of the present invention, by setting the one-way bearings 13 at both ends of the driving shaft 12, the driving shaft 12 can only rotate in one direction, and then by using its self-locking property of reverse rotation, it can limit the square adjusting rod 4, and then control the lifting of the adjusting pull rod 6, making the device control simpler and more convenient and reducing its manufacturing difficulty.

[0047] A wide gear 2 is installed on one side inside the tripping box 1 and is located below the driving gear 14 and meshes with the driving gear 14; a tripping rotating shaft 3 is arranged on one side of the wide gear 2, one end of which is slidably sleeved with a rotating shaft sleeve 31, the rotating shaft sleeve 31 is connected to the tripping box 1 through a bearing, a tripping gear 32 is installed thereon and meshes with the wide gear 2, and the other end is provided with a tripping shaft seat 33, and the tripping shaft seat 33 is connected to the tripping rotating shaft 3 through a bearing; an electric push rod 34 is installed on one side surface of the tripping box 1, and its telescopic end is inserted into the tripping box 1 and connected to the tripping shaft seat 33.

[0048] In an embodiment of the present invention, due to the relatively large width of the wide gear 2, the tripping gear 32 can slide on one side thereof and is ensured to be always in a meshing state. Then, by the movement of the tripping gear 32, the square adjusting rod 4 is in a free state, which is convenient for it to push the adjusting pull rod 6 to rise by using the strong compression spring 71.

[0049] In an embodiment of the present invention, the rotating shaft sleeve 31 is connected to the tripping box 1 through a bearing, and at the same time, the tripping rotating shaft 3 is slidably inserted into the rotating shaft sleeve 31. A positioning key can be used for limit connection between the two to avoid wear between the tripping rotating shaft 3 and the rotating shaft sleeve 31 and ensure its service life.

[0050] In the embodiment of the present invention, the opening shaft seat 33 installed at the telescopic end of the electric push rod 34 is used to install the opening rotating shaft 3 thereon by means of a bearing, so as to ensure the free rotation of the opening rotating shaft 3 and enable it to drive the opening gear 32 to move, thereby controlling the rising of the adjusting pull rod 6.

[0051] The square adjusting rod 4 is arranged on one side of the opening gear 32. The upper and lower ends thereof are provided with limit baffles 41, and a concave adjusting groove 42 is opened on one side thereof. Horizontal sliding rods 43 are arranged on the upper and lower sides inside the concave adjusting groove 42; the adjusting rack 5 is arranged on one side of the opening gear 32 and meshes with the opening gear 32. One end thereof is inserted into the concave adjusting groove 42 and slidably sleeved on the two horizontal sliding rods 43. An adjusting sliding rod 51 is arranged on one side thereof, adjusting sliding seats 52 are installed at the upper and lower ends on one side thereof, the adjusting sliding seats 52 are slidably sleeved on the adjusting sliding rod 51, a positioning sliding rod 53 is arranged on the other side thereof, a positioning rack 54 is slidably installed on the positioning sliding rod 53, the positioning rack 54 is in sliding contact with the adjusting rack 5, and the positioning rack 54 is connected to the opening box 1 through a telescopic rod 55; the electric push rod 56 is installed on the side surface of one side of the opening box 1, the number thereof is two, and they are vertically and parallelly distributed. The telescopic end thereof is inserted into the opening box 1 and connected to both ends of the adjusting sliding rod 51.

[0052] In the embodiment of the present invention, by using the limit baffles 41 arranged at both ends of the square adjusting rod 4, the limit detection rod 8 can be used to position it, so as to control the up and down adjustment height of the square adjusting rod 4, so as to accurately control the closing and opening operations of the high-voltage circuit breaker.

[0053] In the embodiment of the present invention, the adjusting rack 5 is inserted into the concave adjusting groove 42 and slidably sleeved on the horizontal sliding rod 43, so that the adjusting rack 5 can move horizontally in the concave adjusting groove 42. Furthermore, by using the movement of the adjusting rack 5, the engagement and separation of the adjusting rack 5 and the opening gear 32 are controlled, and then the lifting of the square adjusting rod 4 is controlled.

[0054] In the embodiment of the present invention, by using the arrangement of the adjusting sliding seat 52 and the adjusting sliding rod 51, when the adjusting rack 5 rises and falls with the square adjusting rod 4, the adjusting sliding seat 52 can always be slidably sleeved on the adjusting sliding rod 51, and by using the telescopic movement of the electric push rod 56, the adjusting rack 5 can be driven to adjust its position, so as to control the closing and opening operations of the high-voltage circuit breaker.

[0055] In the embodiment of the present invention, the positioning rack 54 is fixedly installed on the inner wall of the opening box 1 through the telescopic rod 55, so that the height of the positioning rack 54 can be positioned. At the same time, the positioning rack 54 is slidably sleeved on the positioning sliding rod 53, which can ensure that the positioning rack 54 can move synchronously with the adjusting rack 5, thereby facilitating the positioning of the opening gear 32.

[0056] In the embodiment of the present invention, by means of the arrangement of the adjusting rack 5 and the positioning rack 54, when the adjusting rack 5 drives the positioning rack 54 to move, after the adjusting rack 5 disengages from the opening gear 32, the opening gear 32 can move onto the positioning rack 54 and mesh with the positioning rack 54. Furthermore, after the adjusting rack 5 rises along with the square adjusting rod 4, the opening gear 32 can move onto the adjusting rack 5 again and mesh with the adjusting rack 5, so as to control the closing operation of the high-voltage circuit breaker, enabling it to be remotely closed, which is more simple and convenient to use.

[0057] In the embodiment of the present invention, the positioning rack 54 limits the opening gear 32 through meshing with the opening gear 32, keeping the opening gear 32 in a fixed state, thereby avoiding a small-angle rotation of the opening gear 32 after it disengages from the adjusting rack 5, which may affect the reset of the opening gear 32 and ensuring the smooth operation of the device.

[0058] In the embodiment of the present invention, by driving the movement adjustment of the opening gear 32 with the electric push rod 1 34 and driving the movement adjustment of the adjusting rack 5 with the electric push rod 2 56, it can control the rapid opening of the high-voltage circuit breaker in two opening modes, and with its redundant design, it improves the reliability and safety of the system, ensuring that the high-voltage circuit can be effectively cut off in various situations and preventing accidents.

[0059] The adjusting pull rod 6 is vertically arranged in the opening box 1 and installed at the upper end of the square adjusting rod 4. A reinforcing sleeve 61 is slidably sleeved thereon, and the reinforcing sleeve 61 is connected to the upper surface of the opening box 1; the positioning plug rod 7 is installed on the lower surface inside the opening box 1 and slidably inserted into the lower end of the square adjusting rod 4. A strong compression spring 71 is sleeved thereon, and the strong compression spring 71 is located between the opening box 1 and the limit baffle 41.

[0060] In the embodiment of the present invention, by means of the arrangement of the adjusting pull rod 6, it is connected to the gear box of the high-voltage circuit breaker. Furthermore, by driving the lifting of the adjusting pull rod 6 with the square adjusting rod 4, the closing and opening operations of the high-voltage breaker are controlled, enabling the device to meet different types of high-voltage circuit breakers and expanding its scope of use.

[0061] In the embodiment of the present invention, by means of the arrangement of the reinforcing sleeve 61, the connection strength between the opening box 1 and the adjusting pull rod 6 can be improved, ensuring the stability of the lifting of the adjusting pull rod 6.

[0062] In the embodiment of the present invention, by means of the arrangement of the positioning plug rod 7, it can position the square adjusting rod 4, and by means of the arrangement of the strong compression spring 71, after the restriction on the square adjusting rod 4 disappears, the elastic force of the strong compression spring 71 can be used to quickly push the square adjusting rod 4 upward, making the opening of the high-voltage circuit breaker faster and more efficient.

[0063] The limit detection rod 8 is installed on the inner side surface of the opening breaker box 1 and is located between two limit baffles 41, on which an infrared distance measuring sensor 81 is installed.

[0064] In the embodiment of the present invention, by setting the limit detection rod 8, on the one hand, it can be arranged between two limit baffles 41 to limit the lifting of the square adjusting rod 4, so as to accurately control the lifting height. On the other hand, the infrared distance measuring sensor 81 thereon can be used to measure the distance from the upper limit baffle 41, so that the closing motor 11 can accurately control the descending height of the square adjusting rod 4, enabling the high-voltage circuit breaker to accurately perform the closing operation.

[0065] In the present invention, the opening gear 32 is the same as the driving gear 14 and has the same width as the adjusting rack 5 and the positioning rack 54; the gear thickness of the opening gear 32 is half of the gear thickness of the wide gear 2; the width of the adjusting rack 5 is half of the groove width of the concave adjusting groove 42; the wide gear 2 and the concave adjusting groove 42 are arranged in a semi-offset manner; by limiting the widths of the wide gear 2, the opening gear 32, the driving gear 14, the adjusting rack 5, the positioning rack 54 and the concave adjusting groove 42, when the opening gear 32 and the adjusting rack 5 move separately, the restrictions on the square adjusting rod 4 can be eliminated, and at the same time, the opening gear 32 can be meshed with the positioning rack 54. Thus, while ensuring that the high-voltage circuit breaker can quickly perform the opening operation, the opening gear 32 and the adjusting rack 5 can be reset, enabling the high-voltage circuit breaker to perform the closing operation, which is convenient for the staff to use.

[0066] In the present invention, when the limit detection rod contacts the upper or lower limit baffle 41 of the square adjusting rod 4, the tooth grooves of the positioning rack 54 are aligned with the tooth grooves of the adjusting rack 5; after the square adjusting rod 4 drives the adjusting rack 5 to rise or fall, the positioning rack 54 and the adjusting rack 5 are in an aligned state. Thus, when the device is adjusted, the opening gear 32 can move onto the positioning rack 54 and be meshed with the positioning rack 54 to position the opening gear 32 and ensure the smooth operation of the device.

[0067] In the present invention, the adjusting pull rod 6 is connected to the gear box of the high-voltage circuit breaker.

[0068] During the implementation of this technical solution, those skilled in the art need to connect all the electrical components in this case to the external power supply mechanism, and should select a suitable controller according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the working principle below and the electrical components should be electrically connected in the order of their sequential operation. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be given.

[0069] When the control circuit of the second electric push rod is normal and an emergency switch-off is required, the switch-off method A is used for the switch-off operation. The steps are as follows:

[0070] A1: Control the two second electric push rods 56 to start contracting, so that they drive the adjusting slide rod 51 to move, and move it from one side inside the concave adjusting groove 42 to the other side;

[0071] A2: At this time, the adjusting rack (5) is separated from the switch-off gear (32), so that the square adjusting rod (4) drives the adjusting pull rod to move upward by the elasticity of the strong compression spring (71). At the same time, the switch-off gear meshes with the positioning rack to position the switch-off gear;

[0072] A3: As the adjusting pull rod moves upward, it drives the gear box of the high-voltage circuit breaker to work, and then controls the high-voltage circuit breaker to perform a switch-off operation, so that the high-voltage circuit breaker cuts off the high-voltage line.

[0073] In the present invention, when the high-voltage circuit breaker needs to be switched off, at this time, the staff can control the second electric push rod 56 to work by means of remote control. The telescopic end of the second electric push rod 56 starts to contract and drives the adjusting slide rod 51 to move, so that the adjusting slide rod 51 drives the adjusting rack 5 to move by means of the adjusting slide seat 52, and then the adjusting rack 5 moves from one side of the concave adjusting groove 42 to the other side, and the adjusting rack 5 is gradually misaligned with the switch-off gear 32 and completely separated;

[0074] At the same time, as the adjusting rack 5 moves, the adjusting rack 5 drives the positioning rack 54 to move by means of the positioning slide rod 53. When the adjusting rack 5 is misaligned with the switch-off gear 32, the positioning rack 54 gradually contacts and meshes with the switch-off gear 32 until the adjusting rack 5 is completely separated from the switch-off gear 32, and the positioning gear 54 is completely meshed with the switch-off gear 32;

[0075] After the adjusting rack 5 is separated from the switch-off gear 32, the restriction on the adjusting rack 5 disappears at this time. At this time, the strong compression spring 71 uses its own elasticity to quickly push the square adjusting rod 4 upward, and then quickly raises the adjusting pull rod 6, and then drives the gear box of the high-voltage circuit breaker to rotate, so that the high-voltage circuit breaker quickly performs a switch-off operation.

[0076] When the control circuit of the second electric push rod fails and an emergency switch-off is required, the switch-off method B is used for the switch-off operation. The steps are as follows:

[0077] B1: Control the first electric push rod to start extending, so that it pushes the switch-off rotating shaft to move, and then the switch-off gear moves a certain distance;

[0078] B2: After the opening gear moves a certain distance, the opening gear disengages from the adjusting rack, causing the square adjusting rod to drive the adjusting pull rod upward by the elasticity of the strong compression spring. At the same time, the opening gear meshes with the positioning rack and remains in mesh with the wide gear;

[0079] B3: As the adjusting pull rod moves upward, it drives the gearbox of the high-voltage circuit breaker to work, thereby controlling the high-voltage circuit breaker to perform an opening operation, so that the high-voltage circuit breaker cuts off the high-voltage line.

[0080] The staff can control the operation of the first electric push rod 34 through remote control, so that the telescopic end of the first electric push rod 34 starts to extend. As the telescopic end of the first electric push rod 34 pushes the opening shaft seat 33 to move, it further pushes the opening rotating shaft 3 to move horizontally and pass through the rotating shaft sleeve 31. As the opening rotating shaft 3 moves, the opening gear 32 gradually forms a dislocation with the adjusting rack 5 and completely disengages as the opening gear 32 moves. During this process, the opening gear 32 gradually moves onto the positioning rack 54 and meshes with the positioning rack 54 until the opening gear 32 completely moves onto the positioning gear 54;

[0081] With the disengagement of the opening gear 32 from the adjusting rack 5, the restriction on the adjusting rack 5 disappears at this time. At this time, the strong compression spring 71 uses its own elasticity to quickly push the square adjusting rod 4 upward, thereby quickly raising the adjusting pull rod 6, and then driving the gearbox of the high-voltage circuit breaker to rotate, enabling the high-voltage circuit breaker to quickly perform an opening operation.

[0082] When the high-voltage circuit breaker needs to be closed, the staff follows the opening method used during opening:

[0083] When performing an opening operation by controlling the contraction of the second electric push rod 56, at this time, the staff remotely controls the second electric push rod 56 to extend, causing it to push the adjusting slide rod 51 to move, and using the adjusting slide seat 52 to push the adjusting rack 5, so that the adjusting rack 5 moves from the other side of the concave adjusting groove 42 to one side. During the movement, the adjusting rack 5 gradually comes into contact with and meshes with the opening gear 32, and at the same time, the opening gear 32 gradually disengages from the positioning rack 54;

[0084] When the opening gear 32 is completely disengaged from the positioning rack 54, at this time the opening gear 32 is completely engaged with the adjusting rack 5. Then, the closing motor 11 is controlled to work, driving the drive shaft 12 to rotate. By means of the rotation of the drive shaft 12, the drive gear 14 is driven to rotate. Through the meshing of the drive gear 14 with the wide gear 2, the meshing of the wide gear 2 with the opening gear 32, and the meshing of the opening gear 32 with the adjusting rack 5, the opening gear 32 drives the adjusting rack 5 to move downward by its own rotation. Furthermore, the adjusting rack 5 drives the square adjusting rod 4 to move downward, gradually compressing the strong compression spring 71. At the same time, the adjusting pull rod 6 is driven to move downward, driving the gear box of the high-voltage circuit breaker to rotate, and thus the high-voltage circuit breaker performs the closing operation.

[0085] When performing the opening operation by controlling the extension of the first electric push rod 34, the staff remotely controls the contraction of the first electric push rod 34, using it to drive the opening rotating shaft 3 to move through the opening shaft seat 33. Furthermore, the opening gear 32 is driven to move, so that the opening gear 32 gradually moves from the positioning rack 54 to the adjusting rack 5 and meshes with the adjusting rack 5.

[0086] After the opening gear 32 is completely disengaged from the positioning rack 54, at this time the closing motor 11 is controlled to work, driving the opening gear 32 to rotate. By means of the rotation of the opening gear 32, the adjusting rack 5 is driven to move downward. Furthermore, the adjusting rack 5 drives the square adjusting rod 4 to move downward, gradually compressing the strong compression spring 71. At the same time, the adjusting pull rod 6 is driven to move downward, driving the gear box of the high-voltage circuit breaker to rotate, and thus the high-voltage circuit breaker performs the closing operation.

[0087] When the present invention is specifically implemented, the first electric push rod 34 and the second electric push rod 56 can be controlled by two different control circuits, thereby avoiding the situation where when the control circuit fails, the staff cannot perform the emergency opening operation of the high-voltage circuit breaker through the microcomputer remote control device, improving the redundancy design of the device and making its use safer and more reliable.

[0088] When the present invention is specifically implemented, two wireless signal receivers can be arranged inside the opening box 1 and respectively connected to the control ends of the first electric push rod 34 and the second electric push rod 56, enabling the staff to perform the emergency opening operation of the high-voltage circuit breaker through the remote control remote control device, and avoiding the situation where the control circuits of the first electric push rod 34 and the second electric push rod 56 fail simultaneously, resulting in their inability to perform the emergency opening operation on the high-voltage circuit breaker.

[0089] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some possible changes made by those skilled in the art to some parts thereof all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A high voltage circuit breaker emergency tripping device, characterized in that: include: The switch box is installed under the high-voltage circuit breaker, and a closing motor is installed on one side surface of the switch box. A driving shaft is installed on the rotating end of the closing motor. The driving shaft is connected to the switch box through a one-way bearing. A driving gear is installed on the driving shaft, and the driving gear is located inside the switch box. The wide gear is installed on one side of the switch box and is located below the driving gear and meshes with the driving gear; The switch-off shaft is arranged on one side of the wide gear, one end of which is slidably fitted with a shaft sleeve, the shaft sleeve is connected to the switch-off box through a bearing, the switch-off gear is installed on it and meshes with the wide gear, and the other end is provided with a switch-off shaft seat, which is connected to the switch-off shaft through a bearing; The electric push rod 1 is installed on the side surface of one side of the switch box, and its telescopic end is inserted into the switch box and connected to the switch shaft seat; A square adjustment rod is arranged on one side of the opening gear, and limit baffles are arranged at the upper and lower ends thereof, and a concave adjustment groove is opened on one side thereof, and transverse sliding rods are arranged at the upper and lower sides inside the concave adjustment groove; An adjusting rack is arranged on one side of the opening gear and meshes with the opening gear. One end of the adjusting rack is inserted into the concave adjusting groove and is slidably mounted on two transverse sliding rods. An adjusting sliding rod is arranged on one side of the adjusting rack. An adjusting sliding seat is installed at the upper and lower ends of one side of the adjusting rack. The adjusting sliding seat is slidably mounted on the adjusting sliding rod. A positioning sliding rod is arranged on the other side of the adjusting rack. A positioning rack is slidably mounted on the positioning sliding rod. The positioning rack is in sliding contact with the adjusting rack. The positioning rack is connected to the opening box through a telescopic rod. The second electric push rod is installed on the side surface of one side of the switch box. There are two of them and they are vertically and parallelly distributed. The telescopic end of the electric push rod is inserted into the switch box and connected with the two ends of the adjusting slide rod. The adjusting rod is vertically arranged in the switch box and installed on the upper end of the square adjusting rod, and a reinforcing sleeve is slidably mounted on the adjusting rod, and the reinforcing sleeve is connected to the upper surface of the switch box; The positioning rod is installed on the lower surface of the inner part of the switch box and is slidably inserted on the lower end of the square adjustment rod. A strong compression spring is installed on the positioning rod, and the strong compression spring is located between the switch box and the limit baffle; The limit detection rod is installed on the inner side surface of the gate box and is located between two limit baffles, and an infrared distance measuring sensor is installed on it.

2. A high voltage circuit breaker emergency tripping device according to claim 1, characterized in that: The opening gear is the same as the driving gear, and has the same width as the adjusting rack and the positioning rack.

3. A high voltage circuit breaker emergency tripping device according to claim 1, characterized in that: The gear thickness of the opening gear is half of the gear thickness of the wide gear.

4. A high voltage circuit breaker emergency tripping device according to claim 1, characterized in that: When the limit detection rod contacts the limit baffle at the upper end or the lower end of the square adjustment rod, the tooth groove of the positioning rack is aligned with the tooth groove of the adjustment rack.

5. A high voltage circuit breaker emergency tripping device according to claim 1, characterized in that: The width of the adjusting rack is half of the width of the groove of the concave adjusting groove.

6. A high voltage circuit breaker emergency tripping device according to claim 1, characterized in that: The wide gear and the concave adjusting groove are arranged in a semi-offset manner.

7. A high voltage circuit breaker emergency tripping device according to claim 1, characterized in that: The adjusting pull rod is connected to the gear box of the high-voltage circuit breaker.

8. A tripping method A for a high-voltage circuit breaker emergency tripping device, characterized in that: When emergency tripping of the high voltage circuit breaker is required, the following steps are taken: A1: Control the two electric push rods to start to retract, so that they drive the adjustment slide bar to move from one side to the other side of the concave adjustment slot; A2: At this time, the adjusting rack is separated from the opening gear, so that the square adjusting rod uses the elasticity of the strong compression spring to drive the adjusting rod to move upward, and at the same time, the opening gear is meshed with the positioning rack to position the opening gear; A3: As the adjustment rod moves upward, it drives the gear box of the high-voltage circuit breaker to work, thereby controlling the high-voltage circuit breaker to perform a trip operation, thereby causing the high-voltage circuit breaker to cut off the high-voltage line.

9. A tripping method B for a high-voltage circuit breaker emergency tripping device, characterized in that: When emergency tripping of the high voltage circuit breaker is required, the following steps are taken: B1: Control the electric push rod to extend at the beginning, so that it pushes the opening shaft to move, and then the opening gear moves a certain distance; B2: After the opening gear moves a certain distance, it separates from the adjustment rack, so that the square adjustment rod uses the elasticity of the strong compression spring to drive the adjustment rod to move upward. At the same time, the opening gear meshes with the positioning rack and is still in meshing with the wide gear. B3: As the adjusting rod moves upward, it drives the gear box of the high-voltage circuit breaker to work, thereby controlling the high-voltage circuit breaker to perform a tripping operation, thereby causing the high-voltage circuit breaker to cut off the high-voltage line.

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