Circuit breaker operating mechanism

Abstract

The utility model discloses a circuit breaker operating mechanism, which comprises a mechanism frame, an energy storage component and an output shaft, and is characterized in that the energy storage component comprises an energy storage spring and a rotating part circumferentially fixed with the output shaft, the rotating part is provided with a connecting part and a telescopic block extending radially, one end of the energy storage spring is hinged with the mechanism frame, and the other end of the energy storage spring is hinged with the output shaft. The other end of the rotating part is rotationally connected with the connecting part, a driving part is rotationally arranged on the output shaft, and the driving part rotates forwards to abut against the telescopic block so as to drive the rotating part to rotate forwards to store energy for the energy storage spring; the problems that in the prior art, the number of internal mechanism parts is large, the structure is complex, and operation reliability is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of circuit breaker, more specifically, it relates to a circuit breaker operating mechanism. BACKGROUND

[0002] The high-voltage vacuum circuit breaker is a kind of device applied to high-voltage power supply and distribution system for protection and control when overload or short circuit occurs in power equipment.The main components of the high-voltage vacuum circuit breaker include circuit breaker main body and operating mechanism, and the commonly used operating mechanisms include electromagnetic operating mechanism, hydraulic operating mechanism and spring operating mechanism, wherein the common spring operating mechanism includes casing, energy storage component and opening mechanism.

[0003] The existing spring operating mechanism has many parts, complex structure and poor operation reliability, thus a circuit breaker operating mechanism with simple structure and reliable operation needs to be designed to solve the existing problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model provides a circuit breaker operating mechanism, which solves the problems of the prior art, such as too many internal mechanism parts, complex structure and poor operation reliability.

[0005] To achieve the above object, the utility model provides the following technical scheme: a circuit breaker operating mechanism, which comprises a mechanism frame, an energy storage component and an output shaft, the energy storage component comprises an energy storage spring and a rotating part fixed in the circumferential direction of the output shaft, a connecting part and an extension block extending radially are arranged on the rotating part, one end of the energy storage spring is hinged to the mechanism frame, and the other end is rotationally connected to the connecting part, a driving part is rotationally arranged on the output shaft, the driving part is abutted against the extension block in the forward direction, thereby driving the rotating part to rotate in the forward direction to store energy for the energy storage spring.

[0006] When the energy storage spring is in the energy storage state, the driving part is abutted against the extension block, thereby locking the rotating part, an unlocking part is arranged on the mechanism frame, the unlocking part is arranged at the front end of the extension block and the driving part in the energy storage state, when the driving part drives the extension block to rotate to the unlocking part, the unlocking part will release the abutment between the driving part and the extension block, the energy storage spring is instantaneously released, and the rotating part is reversely rotated.

[0007] The utility model is further provided as follows: a driving gear is sleeved on the output shaft, the driving part is arranged on the driving gear, a motor gear is arranged on the mechanism frame, and the motor gear is engaged with the driving gear.

[0008] The utility model is further provided as follows: the unlocking part is arranged as a thin plate extending to the extension block.

[0009] The utility model further sets up: the telescopic block is provided with sliding pin, the rotation part is provided with mounting plate, the mounting plate is provided with the sliding slot that is compatible with sliding pin, the sliding pin slides in the sliding slot.

[0010] The utility model further sets up: the telescopic block upper end is provided with chamfer, the unlocking part is compatible with telescopic block chamfer.

[0011] In conclusion, the utility model has the following beneficial effects:

[0012] Compared with prior art, the utility model is provided with telescopic block and transmission gear structure simple, and transmission stable, when closing, motor drives transmission gear rotation, makes telescopic block on the limiting wheel shrink, and then makes energy storage spring release instantaneously, circuit breaker closes;After closing, the transmission gear of setting continues to drive the limiting wheel rotation, and then let energy storage spring store energy. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the internal three-dimensional structure schematic diagram of this embodiment;

[0014] Figure 2 It is the structure schematic diagram of limiting wheel in energy storage state of this embodiment;

[0015] Figure 3 It is the structure schematic diagram of limiting wheel in release state of this embodiment;

[0016] Figure 4 It is the structure schematic diagram of limiting wheel in energy storage process of this embodiment;

[0017] Figure 5 It is the internal structure schematic diagram of telescopic block in shrink state of this embodiment.

[0018] Reference signs: 1, mechanism frame;2, energy storage component;21, energy storage spring;22, rotation part;221, mounting plate;222, sliding slot;23, connecting part;24, telescopic block;241, sliding pin;25, drive part;3, output shaft;4, unlocking part;5, drive gear;6, motor gear. DETAILED DESCRIPTION

[0019] The utility model will be further explained in detail in connection with the drawings.

[0020] This embodiment discloses a kind of circuit breaker operating mechanism, such as Figures 1-5As shown, including mechanism frame 1, energy storage member 2 and output shaft 3, energy storage member 2 includes energy storage spring 21 and with the output shaft 3 circumferential fixed rotation part 22, when the rotation part 22 rotates, can drive the output shaft 3 rotates, rotation part 22 is provided with connecting part 23 and radially extending telescopic block 24, energy storage spring 21 one end with mechanism frame 1 hinged, the other end is rotationally connected with connecting part 23, the output shaft 3 rotationally provided with drive part 25, drive part 25 positive rotation and telescopic block 24, in turn drive rotation part 22 positive rotation for energy storage spring 21 to store energy, such as Figure 4 As shown, the drive part 25 will be abutted with the telescopic block 24 when the drive part 25 is positively rotated, and in turn drive the rotation part 22 to rotate, so that the energy storage spring 21 is stretched to store energy;

[0021] As shown in Figure 2 When the energy storage spring 21 is in the energy storage state, the energy storage spring 21 will generate telescopic force and in turn reverse the rotation of the rotation part 22 because the energy storage spring 21 is in the stretched energy storage state. Since the drive part 25 abuts against the telescopic block 24, the rotation part 22 is in turn locked, ensuring that the energy storage spring 21 can maintain the energy storage state.

[0022] As shown in Figure 3 The mechanism frame 1 is provided with an unlocking part 4, which is arranged at the front end of the telescopic block 24 and the drive part 25 in the energy storage state. When the drive part 25 drives the telescopic block 24 to rotate onto the unlocking part 4, the unlocking part 4 will release the abutment between the drive part 25 and the telescopic block 24. Since the abutment between the drive part 25 and the telescopic block 24 is lost, the energy storage spring 21 is instantaneously released and drives the rotation part 22 to reverse rotation, in turn making the energy storage spring 21 become a release state.

[0023] The utility model further sets up the drive gear 5 that the output shaft 3 is set, drive part 25 sets up on the drive gear 5, mechanism frame 1 is provided with motor gear 6, and motor gear 6 is engaged with drive gear 5. The motor gear 6 is set to rotate in one direction, and the drive gear 5 rotates in one direction due to the engagement with the motor gear 6.

[0024] The utility model further sets up the sliding pin 241 that the telescopic block 24 is provided with, and the mounting plate 221 that the rotation part 22 is provided with is provided with the sliding groove 222 that is matched with the sliding pin 241, and the sliding groove 222 plays a guiding role. The sliding pin 241 slides in the sliding groove 222, and the sliding pin 241 and the sliding groove 222 matched with the sliding pin 241 can make the telescopic block 24 more stable during sliding.

[0025] The utility model further sets up and sets up the thin plate that extends to telescopic block 24 for unlocking portion 4. The utility model further sets up that the chamfer is provided with on telescopic block 24 top, and unlocking portion 4 is compatible with the chamfer of telescopic block 24, when drive portion 25 drives rotating part 22 to rotate to unlocking portion 4, unlocking portion 4 and the chamfer surface of telescopic block 24 abut, further make telescopic block 24 shrink to the inside of rotating block under the action of unlocking block, further make drive portion 25 and telescopic block 24 not abut, further make rotating part 22 lose the constraint force, make energy storage spring 21 release.

[0026] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, and any modification, equivalent replacement, improvement etc. that is made within the design concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A circuit breaker operating mechanism comprising a mechanism frame (1), an energy storage member (2) and an output shaft (3), characterized in that: The energy storage member (2) comprises an energy storage spring (21) and a rotating part (22) fixed circumferentially with the output shaft (3), the rotating part (22) is provided with a connecting part (23) and a radial extension block (24), one end of the energy storage spring (21) is hinged with the mechanism frame (1), the other end is rotationally connected with the connecting part (23), the output shaft (3) is rotationally provided with a driving part (25), the driving part (25) is abutted with the extension block (24) in the forward rotation, thereby driving the rotating part (22) to rotate forward to store energy for the energy storage spring (21); When the energy storage spring (21) is in the energy storage state, the driving part (25) is abutted with the extension block (24), thereby locking the rotating part (22); The mechanism frame (1) is provided with an unlocking part (4), the unlocking part (4) is arranged at the front end of the extension block (24) and the driving part (25) in the energy storage state, when the driving part (25) drives the extension block (24) to rotate to the unlocking part (4), the unlocking part (4) will release the abutment between the driving part (25) and the extension block (24), the energy storage spring (21) is instantaneously released, and the rotating part (22) is reversely rotated.

2. The circuit breaker operating mechanism of claim 1, wherein: The output shaft (3) is provided with a driving gear (5), the driving part (25) is arranged on the driving gear (5), the mechanism frame (1) is provided with a motor gear (6), the motor gear (6) is engaged with the driving gear (5).

3. The circuit breaker operating mechanism of claim 1 wherein: The unlocking part (4) is arranged as a thin plate extending to the extension block (24).

4. The circuit breaker operating mechanism of claim 1 wherein: The extension block (24) is provided with a sliding pin (241), the rotating part (22) is provided with a mounting plate (221), the mounting plate (221) is provided with a sliding groove (222) matched with the sliding pin (241), and the sliding pin (241) slides in the sliding groove (222).

5. The circuit breaker operating mechanism of claim 1 wherein: The extension block (24) is provided with a chamfer at the upper end, and the unlocking part (4) is matched with the chamfer of the extension block (24).

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