Motor-driven high-voltage circuit breaker operating mechanism containing energy storage device

Abstract

The invention belongs to the field of high-voltage circuit breaker operating mechanisms, and discloses a motor-driven high-voltage circuit breaker operating mechanism with an energy storage device, which not only obviously improves the transmission efficiency of the mechanism and obviously improves the control precision, thereby basically avoiding the abnormal phenomenon of switching on, but also has the advantages of small frictional heating amount and high reliability. An independent heat dissipation device does not need to be additionally configured, so that the occupied space of the mechanism is greatly reduced, the mechanism comprises a base, a driving unit and an operating unit, the driving unit comprises a driving motor and an output connecting rod assembly, the operating unit comprises an operating shaft rod and an operating pull rod, and an output shaft of the driving motor is provided with a driving crank arm. The driving crank arm is arranged on the operating shaft rod, the driven crank arm is arranged on the operating shaft rod, the output connecting rod assembly is in a chain shape, the two ends of the output connecting rod assembly are hinged to the driving crank arm and the driven crank arm respectively, the driving crank arm, the output connecting rod assembly and the driven crank arm form a plane connecting rod mechanism, the operating shaft rod is further provided with an operating crank arm, and the operating pull rod is hinged to the operating crank arm. And the operating pull rod is coupled with the moving contact rod.

Description

Technical Field

[0001] The invention belongs to the field of high-voltage circuit breaker operating mechanisms, and in particular relates to a motor-driven high-voltage circuit breaker operating mechanism including an energy storage device. Background Art

[0002] High-voltage circuit breakers undertake the dual important tasks of control and protection in the power system. The operating mechanism is responsible for controlling the opening and closing operations of the circuit breaker and directly driving the contacts. It is the core mechanism of the high-voltage circuit breaker. Transmission operating mechanisms such as spring operating mechanisms have problems such as many parts, complex manufacturing processes, and stress relaxation after multiple operations. Hydraulic operating mechanisms have high processing accuracy requirements and pressure leakage. In order to overcome the limitations of traditional operating mechanisms, motor-driven operating mechanisms have appeared on the market.

[0003] A Chinese invention patent application (publication number CN111769006A) discloses a high-voltage circuit breaker motor operating mechanism containing an energy storage device and a working method thereof. The operating mechanism uses a motor to rotate to drive a worm gear, a gear rack, and a lifting mechanism to pull an insulating pull rod to achieve circuit breaker opening and closing control. The lifting mechanism stretches the energy storage spring to store energy during the closing process, and the energy storage spring resets during the opening process to pull the moving contact down.

[0004] However, the transmission of the above-mentioned device is complicated, and the opening and closing are achieved through worm gear transmission. Obviously, the transmission efficiency is low, the precision control is poor, and abnormal closing phenomenon is prone to occur, which has a negative impact on the life of the moving contact rod. In addition, the friction heat generated by the worm gear transmission is large, so an independent heat dissipation device must be provided. The energy storage device uses a tension spring, which is not stable enough compared to the compression spring when used in the application scenario of large operating work, that is, the tension spring is easy to break under large operating work conditions, so the above-mentioned device is only suitable for working conditions below 100kV. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a motor-driven high-voltage circuit breaker operating mechanism including an energy storage device, which not only significantly improves the transmission efficiency of the mechanism and the control accuracy, thereby basically eliminating the occurrence of abnormal closing phenomena, but also generates less frictional heat, and does not require additional independent heat dissipation devices, thereby greatly reducing the space occupied by the mechanism.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A motor-driven high-voltage circuit breaker operating mechanism containing an energy storage device, which is used to operate the linear movement of a moving contact rod, is characterized in that it includes: a base having an operating channel that directly leads into a GIS, a drive unit, which is arranged on the base, the drive unit includes a driving motor and an output connecting rod assembly, an operating unit, which is arranged on the base, the operating unit includes an operating shaft and an operating pull rod arranged on the operating shaft, the operating pull rod extends into the interior of the GIS through the operating channel and can move linearly back and forth, wherein a driving crank arm is arranged on the output shaft of the driving motor, a slave crank arm is arranged on the operating shaft, the output connecting rod assembly is chain-shaped, and the two ends are respectively hingedly connected to the free end of the driving crank arm and the free end of the slave crank arm, and the driving crank arm, the output connecting rod assembly and the slave crank arm form a planar connecting rod mechanism, and an operating crank arm is also arranged on the operating shaft, one end of the operating pull rod is hingedly connected to the free end of the operating crank arm, and the other end is coupled to the moving contact rod.

[0008] Preferably, the output connecting rod assembly includes an arc-shaped connecting rod, the envelope angle of the arc-shaped connecting rod is an obtuse angle, and one end of the arc-shaped connecting rod is hingedly connected to the free end of the driving crank arm. When the driving motor rotates, the driving trajectory of the arc-shaped connecting rod is arc-shaped.

[0009] Furthermore, the driving motor is arranged on the base through a motor bracket, and a pair of protruding limiting structures are also arranged on the surface of the motor bracket, and the pair of limiting structures are used to limit the length of the predetermined track at both ends of the predetermined track.

[0010] Furthermore, the limiting mechanism is a detachably arranged limiting support column, and the force direction of the limiting support column is the extension direction of the column body of the limiting support column.

[0011] Furthermore, the output connecting rod assembly also includes an adjustable connecting rod and a connecting rod. The two ends of the adjustable connecting rod are respectively connected to the other end of the arc-shaped connecting rod and one end of the connecting rod. The other end of the connecting rod is hingedly connected to the free end of the swing arm. A threaded through hole extending in the same direction is formed inside the adjustable connecting rod, which is used to be threadedly connected to the connecting rod and the arc-shaped connecting rod respectively. The threaded connection length of the connecting rod, the arc-shaped connecting rod and the adjustable connecting rod can be adjusted by locking the locking nut, thereby achieving adjustable coupling length between the arc-shaped connecting rod and the connecting rod.

[0012] Preferably, the present invention also includes an energy storage assembly, including an energy storage piston, an energy storage cylinder and an energy storage compression spring arranged in the energy storage cylinder, the energy storage cylinder has an open end and a closed end, the closed end is hingedly connected to the base surface, and an energy storage crank arm is also arranged on the operating shaft rod, one end of the energy storage piston is hingedly connected to the free end of the energy storage crank arm, and the other end extends into the interior of the energy storage cylinder through the open end and abuts against one end of the energy storage compression spring, and the other end of the energy storage compression spring abuts against the inner wall of the energy storage cylinder corresponding to the closed end.

[0013] Furthermore, the energy storage assembly also includes an open cylinder cover, which is threadedly connected to the open end, one end of the open cylinder cover is in contact with the energy storage compression spring, and the energy storage piston passes through the open cylinder cover.

[0014] Furthermore, the number of energy storage arms and the number of energy storage components are both multiple and correspond one to one.

[0015] Furthermore, the number of the energy storage crank arms is even, which are divided into two groups and are symmetrically arranged on both sides of the slave crank arm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device of the present invention comprises a base, a driving unit and an operating unit, the driving unit comprises a driving motor and an output connecting rod assembly, the operating unit comprises an operating shaft and an operating pull rod, the operating pull rod extends into the interior of the GIS and can reciprocate linearly, a driving turning arm is arranged on the output shaft of the driving motor, a slave turning arm is arranged on the operating shaft, the output connecting rod assembly is in a chain shape, and the two ends are respectively hingedly connected to the driving turning arm and the slave turning arm, and the driving turning arm, the output connecting rod assembly and the slave turning arm form a planar connecting rod mechanism, and the driving turning arm, the output connecting rod assembly and the slave turning arm are arranged on the operating shaft. An operating crank arm is also provided, and an operating pull rod is hingedly connected to the operating crank arm, and the operating pull rod is coupled to the moving contact rod, so that the reciprocating linear movement of the operating connecting rod is realized by the driving motor through the crank arm and the output connecting rod assembly, and the rotation angle of the output shaft of the driving motor can be accurately controlled, and the relative friction generated by the connecting rod mechanism is small. Therefore, the present invention not only significantly improves the transmission efficiency of the mechanism and the control accuracy, thereby basically eliminating the occurrence of abnormal closing phenomenon, but also generates less frictional heat, and there is no need to additionally configure an independent heat dissipation device, thereby greatly reducing the space occupied by the mechanism.

[0018] 2. Because the output connecting rod assembly of the present invention includes an arc-shaped connecting rod, the envelope angle of the arc-shaped connecting rod is an obtuse angle, and one end of the arc-shaped connecting rod is hingedly connected to the free end of the driving arm, therefore, the output shaft of the driving motor cooperates with the connecting rod mechanism through the arrangement of the arc-shaped connecting rod, which greatly increases the allowable output rotation angle in the same occupied space, thereby being able to adapt to the operating conditions of circuit breakers with larger openings, and making the mechanism more compact, thereby further reducing the occupied space.

[0019] 3. Because the limiting mechanism of the present invention is a detachable limiting bearing column, and the force direction of the arc-shaped connecting rod limiting bearing column is the column extension direction of the arc-shaped connecting rod limiting bearing column, the limiting bearing column of the present invention can withstand stronger impact, and the detachable setting can be conveniently adjusted, so that the mechanism can accurately control the rotation angle of the driving crank arm to prevent the occurrence of abnormal closing phenomenon.

[0020] 4. Because the adjustable connecting rod of the present invention is internally formed with threaded through holes extending in the same direction, which are used for threaded connection with the connecting rod and the arc-shaped connecting rod respectively, and the threaded connection length of the connecting rod, the arc-shaped connecting rod and the adjustable connecting rod is adjustable through the locking nut, thereby achieving adjustable coupling length between the arc-shaped connecting rod and the connecting rod. Therefore, when the mechanism is debugged, the present invention can conveniently adjust the coupling length between the arc-shaped connecting rod and the connecting rod, so that the mechanism can accurately control the rotation angle of the slave turning arm to prevent the occurrence of abnormal closing phenomenon.

[0021] 5. Because the present invention also includes an energy storage assembly, including an energy storage piston, an energy storage cylinder and an energy storage compression spring arranged in the energy storage cylinder, the energy storage cylinder has an open end and a closed end, the closed end is hingedly connected to the base surface, and an energy storage crank arm is also arranged on the operating shaft rod, one end of the energy storage piston is hingedly connected to the free end of the energy storage crank arm, and the other end extends into the interior of the energy storage cylinder through the open end and abuts against one end of the energy storage compression spring, and the other end of the energy storage compression spring abuts against the inner wall of the energy storage cylinder corresponding to the closed end. Therefore, the present invention can make the operating shaft rod rotate faster through the elastic restoring force of the energy storage compression spring, thereby making the opening gate faster.

[0022] 6. Because the energy storage assembly of the present invention also includes an open cylinder cover, the cylinder cover is threadedly connected to the open end, one end of the open cylinder cover is in contact with the energy storage compression spring, and the energy storage piston passes through the open cylinder cover, that is, the length of the energy storage compression spring can be adjusted by the depth of the cylinder cover screwed into the open end, that is, the size of the elastic restoring force of the energy storage compression spring can be adjusted. Therefore, the present invention can flexibly adjust the rapidity of opening the gate according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a motor-driven high-voltage circuit breaker operating mechanism including an energy storage device according to an embodiment of the present invention;

[0024] Figure 2 is a cross-sectional view of an output connecting rod assembly according to an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the coupling between the driving unit and the operating unit of an embodiment of the present invention Figure 1 ;

[0026] Figure 4 Schematic diagram of the coupling between the driving unit and the operating unit of an embodiment of the present invention Figure 2 ;

[0027] Figure 5 An exploded view of an energy storage assembly according to an embodiment of the present invention.

[0028] In the figure: A, high-voltage circuit breaker, A1, flange opening, 100, motor-driven high-voltage circuit breaker operating mechanism with energy storage device, 10, base, 11, motor bracket, 11a, limit bearing column, 12, operating bracket, 20, drive unit, 21, drive motor, 21a, drive crank arm, 22, output connecting rod assembly, 221, arc connecting rod, 221a, straight handle end, 221b, arc hook end, 222, adjustable connecting rod, 222 a, threaded through hole, 222b, locking nut, 223, connecting rod, 30, operating unit, 31, operating shaft, 31a, slave crank arm, 31b, operating crank arm, 31c, energy storage crank arm, 32, operating pull rod, 40, energy storage assembly, 41, energy storage piston, 41a, top flange, 42, energy storage straight cylinder, 42a, open end, 42b, closed end, 43, energy storage compression spring, 44, open cylinder cover, 45, cylinder cover sleeve. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following embodiments and drawings specifically illustrate the motor-driven high-voltage circuit breaker operating mechanism containing an energy storage device of the present invention. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0030] like Figure 1 As shown, the motor-driven high-voltage circuit breaker operating mechanism 100 containing an energy storage device in this embodiment is used to operate the linear movement of a moving contact rod (not shown in the drawings). Specifically, in the high-voltage circuit breaker, the moving contact rod realizes the opening and closing operations of the circuit breaker through linear movement. The motor-driven high-voltage circuit breaker operating mechanism 100 containing an energy storage device is used for a vertical GIS.

[0031] The motor-driven high-voltage circuit breaker operating mechanism 100 including an energy storage device comprises a base 10 , a drive unit 20 , an operating unit 30 and an energy storage assembly 40 .

[0032] The base 10 has an operating channel (not shown in the drawings) which leads straight into the GIS. Specifically, the operating channel is connected to the flange opening of the GIS. The base 10 is arranged horizontally, and the operating channel extends vertically.

[0033] Specifically, a motor bracket 11 and an operating bracket 12 close to each other are provided on the upper surface of the base 10. In the present embodiment, the motor bracket 11 is a right-angle bracket having a horizontal plate portion (not shown in the drawings) and a vertical plate portion (not shown in the drawings). The horizontal plate portion is threadedly connected to the surface of the base 10, and the vertical plate portion is perpendicular to the surface of the base 10.

[0034] The driving unit 20 is disposed on the base 10 , and includes a driving motor 21 and an output connecting rod assembly 22 .

[0035] The driving motor 21 is arranged on the base 10 through the motor bracket 11, and a driving arm 21a is arranged on the output shaft of the driving motor 21. Specifically, the driving motor 21 is installed on the vertical plate portion, and the output shaft of the driving motor 21 passes through the vertical plate portion and extends horizontally.

[0036] like Figures 2 to 4 As shown, the output connecting rod assembly 22 is in the shape of a planar chain, and includes an arc-shaped connecting rod 221, an adjustable connecting rod 222 and a connecting connecting rod.

[0037] The envelope angle of the arc-shaped connecting rod 221 is an obtuse angle, and one end of the arc-shaped connecting rod 221 is hingedly connected to the free end of the driving crank arm 21a. Specifically, the arc-shaped connecting rod 221 has a straight handle end 221a and an arc hook end 221b, the arc hook end 221b is hingedly connected to the free end of the driving crank arm 21a, and the straight handle end 221a is connected to the adjustable connecting rod 222.

[0038] A threaded through hole 222a extending in the same direction as the adjustable connecting rod 222 is formed inside. The adjustable connecting rod 222 is threadedly connected to the connecting rod 223 and the arc-shaped connecting rod 221 respectively through the threaded through hole 222a, and is locked by a locking nut 222b to achieve adjustable threaded connection lengths of the connecting rod 223, the arc-shaped connecting rod 221 and the adjustable connecting rod 222, thereby achieving adjustable coupling lengths between the arc-shaped connecting rod 221 and the connecting rod 222.

[0039] The operating unit 30 is disposed on the base 10 , and includes an operating shaft 31 and an operating pull rod 32 .

[0040] The operating shaft 31 is provided with a slave crank arm 31a, an operating crank arm 31b and an energy storage crank arm 31c. Specifically, the operating shaft 31 is mounted on the operating bracket 12 through a bearing, and the extending direction of the operating shaft 31 is parallel to the extending direction of the output shaft of the driving motor 21.

[0041] One end of the connecting rod 223 is threadedly connected to the adjustable connecting rod 222, and the other end of the connecting rod 223 is hingedly connected to the free end of the slave turning arm 31a, and the driving turning arm 21a, the output connecting rod assembly 22 and the slave turning arm 31a form a planar connecting rod mechanism in a vertical plane.

[0042] When the driving motor 21 rotates, the driving trajectory of the arc-shaped connecting rod 221 is arc-shaped, and a pair of detachable limit columns 11a are vertically arranged on the surface of the horizontal plate portion of the motor bracket 11. The pair of limit columns 11a are both located directly below the arc-shaped connecting rod 221, and the pair of limit columns 11a are used to limit the length of the predetermined trajectory at both ends of the predetermined trajectory. When the limit columns 11a receive the movement impact of the arc-shaped connecting rod 221, the impact force is transmitted from the top of the limit column 11a along the column extension direction of the limit column 11a through the motor bracket 11 to the base 10.

[0043] The free end of the operating crank arm 31b is hingedly connected to one end of the operating rod 32, and the other end of the operating rod 32 is coupled to the moving contact rod. Specifically, the operating rod 32 extends into the interior of the GIS through the operating channel and is coupled to the moving contact rod. When the operating crank arm 31b rotates, the operating rod 32 is driven to move back and forth in a straight line, thereby driving the moving contact rod to move in a straight line.

[0044] like Figure 5 As shown, the energy storage assembly 40 includes an energy storage piston 41 , an energy storage straight cylinder 42 , an energy storage compression spring 43 , an open cylinder cover 44 and a cylinder cover shaft sleeve 45 .

[0045] One end of the energy storage piston 41 is hingedly connected to the free end of the energy storage arm 31c, and the other end extends into the interior of the energy storage straight cylinder 42. Specifically, the energy storage piston 41 is hingedly connected to the energy storage arm 31c through a waist hole (not shown in the drawings), and the end of the energy storage piston 41 located inside the energy storage straight cylinder 42 is formed with a top flange 41a.

[0046] The number of the energy storage arms 31c and the number of the energy storage assemblies 40 are both multiple and even, and the energy storage arms 31c and the energy storage assemblies 40 correspond one to one, are divided into two groups and are symmetrically arranged on both sides of the rotation arm 31a.

[0047] The energy storage cylinder 42 has an open end 42 a and a closed end 42 b . The closed end 42 b is hingedly connected to the surface of the base 10 . The energy storage piston 41 extends into the interior of the energy storage cylinder 42 through the open end 42 a .

[0048] The energy storage compression spring 43 is located inside the energy storage straight cylinder 42, and its extension direction is consistent with the energy storage straight cylinder 42. The top flange 41a abuts against one end of the energy storage compression spring 43, and the other end of the energy storage compression spring 43 abuts against the inner wall of the energy storage straight cylinder 42 corresponding to the closed end 42b.

[0049] The open cylinder cover 44 is threadedly connected to the open end 42a, one end of the open cylinder cover 44 is in contact with the energy storage compression spring 43, and the energy storage piston 41 passes through the open cylinder cover. Specifically, by rotating the open cylinder cover relative to the open end 42, the combined length of the internal threads of the open cylinder cover 44 and the open end 42a can be adjusted, that is, by rotating the open cylinder cover 44, the energy storage compression spring 43 can be shortened to store energy or expanded to release energy. In this embodiment, the open cylinder cover 44 has a through hole (not shown in the drawings) for the energy storage piston 41 to pass through, and a cylinder cover sleeve 45 is provided between the through hole and the energy storage piston 41.

[0050] The working process of the motor-driven high-voltage circuit breaker operating mechanism 100 including an energy storage device is described below in conjunction with an embodiment:

[0051] First, when the high-voltage circuit breaker A performs a closing operation, the driving motor 21 rotates forward, driving the driving crank arm 21a to rotate counterclockwise, and the operating shaft 31 rotates clockwise through the output connecting rod assembly 22 and the driven crank arm 31a; then, the operating shaft 31 drives the operating crank arm 31b to rotate clockwise, and drives the moving contact rod through the operating pull rod 32, so that the high-voltage circuit breaker A completes the closing action. At the same time, the operating shaft 31 drives the energy storage crank arm 31c, and the energy storage piston 41 compresses the energy storage compression spring 43 to complete the energy storage; then, when the high-voltage circuit breaker A performs an opening operation, the driving motor 21 rotates forward, driving the driving crank arm 21a to rotate counterclockwise, and the output connecting rod assembly 22 and the driven crank arm 31a realize the clockwise rotation of the operating shaft 31; then, the operating shaft 31 drives the operating crank arm 31b to rotate clockwise, and drives the moving contact rod through the operating pull rod 32, so that the high-voltage circuit breaker A completes the closing action. At the same time, the operating shaft 31 drives the energy storage crank arm 31c, and the energy storage compression spring 43 is compressed by the energy storage piston 41 to complete the energy storage; then, when the high-voltage circuit breaker A performs an opening operation, the driving motor 21 rotates forward, driving the driving crank arm 21a to rotate counterclockwise, and the output connecting rod assembly 22 and the driven crank arm 31a realize the clockwise rotation of the operating shaft 31; then, the operating shaft 31 drives the operating crank arm 31b to rotate clockwise, and drives the moving contact rod through the operating pull rod 32, so that the high-voltage circuit breaker A completes the closing action. The rotating motor 21 reverses, driving the driving crank arm 21a to rotate counterclockwise, and the operating shaft 31 rotates counterclockwise through the output connecting rod assembly 22 and the slave crank arm 31a. At the same time, the operating shaft 31 reversely drives the energy storage crank arm 31c, and releases the energy storage compression spring 43 through the energy storage piston 41. In the process of the energy storage compression spring 32 releasing energy, the energy storage crank arm 31c is driven to reverse rapidly, thereby realizing the rapid opening of the high-voltage circuit breaker A. Specifically, the motor-driven high-voltage circuit breaker operating mechanism 100 containing the energy storage device can be used for the opening and closing operations of high-voltage circuit breakers of up to 252kV.

[0052] Furthermore, during the process of opening and closing the switch, the arc-shaped connecting rod 221 limits the length of its driving track through a pair of limiting bearing columns 11a.

[0053] The above-mentioned implementation modes are preferred cases of the present invention and are not used to limit the protection scope of the present invention. Various deformations or modifications that can be made by ordinary technicians in this field without creative work within the scope of the attached claims are still within the protection scope of this patent.

Claims

1. A motor-driven high-voltage circuit breaker operating mechanism including an energy storage device, used to operate the linear movement of a moving contact rod, characterized in that: include: The base has a vertical operating channel leading directly into the GIS. A driving unit is arranged on the base, and the driving unit includes a driving motor and an output connecting rod assembly. An operating unit is arranged on the base, and the operating unit includes an operating shaft and an operating rod arranged on the operating shaft. The operating rod extends into the interior of the GIS through the operating channel and can move linearly back and forth. The output shaft of the driving motor is provided with a driving crank arm, the operating shaft is provided with a slave crank arm, the output connecting rod assembly is in a chain shape, and the two ends are respectively hingedly connected to the free end of the driving crank arm and the free end of the slave crank arm, and the driving crank arm, the output connecting rod assembly and the slave crank arm form a planar connecting rod mechanism. The operating shaft is also provided with an operating crank arm, one end of the operating pull rod is hingedly connected to the free end of the operating crank arm, and the other end is coupled to the moving contact rod.

2. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 1, characterized in that: in, The output connecting rod assembly includes an arc-shaped connecting rod, the envelope angle of the arc-shaped connecting rod is an obtuse angle, and one end of the arc-shaped connecting rod is hingedly connected to the free end of the driving crank arm. When the driving motor rotates, the driving trajectory of the arc-shaped connecting rod is arc-shaped.

3. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 2, characterized in that: in, The driving motor is arranged on the base through a motor bracket. A pair of protruding limiting structures are also provided on the surface of the motor bracket, and the pair of limiting structures are used to limit the length of the predetermined track at both ends of the predetermined track.

4. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 3 is characterized in that: in, The limiting mechanism is a detachably arranged limiting support column, and the force direction of the limiting support column is the extension direction of the column body of the limiting support column.

5. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 2, characterized in that: in, The output connecting rod assembly also includes an adjustable connecting rod and a connecting rod, the two ends of the adjustable connecting rod are respectively connected to the other end of the arc-shaped connecting rod and one end of the connecting connecting rod, and the other end of the connecting connecting rod is hingedly connected to the free end of the slave turning arm. The inside of the adjustable connecting rod is formed with a threaded through hole extending in the same direction, which is used to be threadedly connected to the connecting connecting rod and the arc-shaped connecting rod respectively, and the threaded connection length of the connecting connecting rod, the arc-shaped connecting rod and the adjustable connecting rod can be adjusted by locking the locking nut, thereby achieving adjustable coupling length between the arc-shaped connecting rod and the connecting connecting rod.

6. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 1, characterized in that: Also includes: The energy storage assembly comprises an energy storage piston, an energy storage cylinder and an energy storage compression spring arranged in the energy storage cylinder, wherein the energy storage cylinder has an open end and a closed end, and the closed end is hingedly connected to the surface of the base. An energy storage crank arm is also provided on the operating shaft, one end of the energy storage piston is hingedly connected to the free end of the energy storage crank arm, and the other end extends into the interior of the energy storage straight cylinder through the open end and abuts against one end of the energy storage compression spring, and the other end of the energy storage compression spring abuts against the inner wall of the energy storage straight cylinder corresponding to the closed end.

7. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 6, characterized in that: in, The energy storage assembly also includes an open cylinder cover, The open cylinder cover is threadedly connected to the open end, one end of the open cylinder cover is in contact with the energy storage compression spring, and the energy storage piston passes through the open cylinder cover.

8. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 6, characterized in that: in, The number of the energy storage arms and the number of the energy storage components are both multiple and correspond one to one.

9. The motor-driven high-voltage circuit breaker operating mechanism with energy storage device according to claim 8, characterized in that: in, The number of the energy storage crank arms is even, which are divided into two groups and symmetrically arranged on both sides of the slave crank arm.

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