CN218160237U

CN218160237U - Stable spring operating mechanism

Info

Publication number: CN218160237U
Application number: CN202222668976.9U
Authority: CN
Inventors: 潘宝福; 林观日; 潘浩杰; 包晓燕
Original assignee: Yueqing Bangli Electric Co ltd
Current assignee: Yueqing Bangli Electric Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2022-12-27
Anticipated expiration: 2032-10-10

Abstract

The utility model provides a stable spring operating device belongs to circuit breaker technical field, its including a plurality of trippers and with tripper linkage complex tripping plate, the tripper all through buffering leg joint in the frame, the four corners of buffering support all is provided with the connecting hole, be provided with connecting screw in the connecting hole and be connected with the frame, connecting screw overlaps at the part that is located between frame and the buffering support and is equipped with the spring, the spring is used for supporting buffering support and makes tripper and frame surface be separated by a determining deviation, connecting screw is provided with elastic washer and first nut in the part that is located buffering support top. The utility model discloses can play the effect of shock attenuation, buffering to the release, can also play locking effect to connecting bolt, can avoid the release to produce not hard up and skew with the frame under the vibrations that produce when the mechanism moves, guarantee and correspond the linkage cooperation of dropout board to make the circuit breaker divide the breaking performance stable.

Description

Stable spring operating mechanism

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to stable spring operating mechanism.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. In a power transmission and transformation system, a circuit breaker is a core component of switch equipment and has the function of ensuring the safe operation of a line. The spring operating mechanism is an important component in the circuit breaker, and one of the main functions of the spring operating mechanism is to drive the contact to close or open the switch by the elastic potential energy of the energy storage spring through the link mechanism. In the prior art, patent publication No. CN108493068A discloses a spring operating mechanism and a circuit breaker using the same, in which an electromagnetic trip (i.e., a closing electromagnet) is directly mounted on a rack, and in the process of the energy storage spring, the spring operating mechanism may vibrate, and the electromagnetic trip may be loosened to cause deviation easily in the continuous vibration process, thereby causing linkage cooperation failure and affecting the breaking performance of the circuit breaker.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a stable spring operating device.

The utility model adopts the following technical scheme: the utility model provides a stable spring operating mechanism, including the frame, be provided with coordinated energy storage structure, combined floodgate structure and separating brake structure of each other in the frame, it still including a plurality of trippers and with tripper linkage complex tripping plate, the tripper all is connected in the frame through buffering support, the four corners of buffering support all is provided with the connecting hole, be provided with connecting screw in the connecting hole and be connected with the frame, connecting screw is equipped with the spring in the part cover that is located between frame and the buffering support, the spring is used for supporting buffering support and makes tripper and frame surface be separated by a determining deviation, connecting screw is provided with spring washer and first nut in the part that is located buffering support top.

And a second nut is arranged between the spring and the rack.

The buffer support comprises an I-shaped mounting plate and a U-shaped fixing plate connected to the middle of the mounting plate, and the release is limited between the mounting plate and the U-shaped fixing plate.

The combined floodgate structure sets up the combined floodgate semi-axis in the frame including rotating, the separating brake structure sets up the separating brake semi-axis in the frame including rotating, the trip bar is including the combined floodgate trip board of being connected with combined floodgate semi-axis one end and the separating brake trip board of being connected with separating brake semi-axis one end, the other end of separating brake semi-axis is connected with overflows the trip board, the tripper including with combined floodgate trip board linkage complex combined floodgate tripper, with separating brake trip board linkage complex separating brake tripper and with overflow the tripper linkage complex tripper that overflows.

The frame is including first mounting panel and the second mounting panel that is separated from a determining deviation parallel arrangement, energy storage structure is including rotating first pivot, second pivot, energy storage axle and the spring hanging axle that sets up on first mounting panel and second mounting panel, be provided with first gear in the first pivot, be provided with the second gear in the second pivot, the epaxial third gear that is provided with of energy storage, first gear and second gear mesh, the second gear meshes with the third gear, still be provided with in the frame and be used for driving first pivot pivoted energy storage motor, energy storage axle and spring hanging axle all have one end to extend to the first mounting panel outside to be provided with the energy storage spring between the two, the one end that the energy storage axle extends to the first mounting panel outside is connected with the energy storage turning arm, the one end that the energy storage axle extends to the first mounting panel outside is provided with the spread groove, energy storage spring one end is connected with first connecting piece and energy storage turning arm, and its other end is connected with adjusting bolt subassembly and is connected with the drive pawl, the energy storage axle is provided with the drive pawl on the part that is located between third gear and the second mounting panel, the energy storage axle is provided with the cam on the part that is located between the third gear and the drive disk, the drive pawl and be provided with the linkage of drive disk, the outer edge that the drive disk and the lock pin that the drive disk is provided with the drive pawl that the drive disk, the drive disk is provided with the lock is provided with the drive pawl, the lock cooperation of the drive disk.

The energy storage structure further comprises a manual energy storage shaft and an operating handle connected with the manual energy storage shaft, the manual energy storage shaft is connected with a pawl, and a ratchet wheel in linkage fit with the pawl is connected to the first rotating shaft.

The closing structure comprises an energy storage retaining pawl, one end of the energy storage retaining pawl is positioned on a rotating path of the linkage wheel, and the other end of the energy storage retaining pawl is in linkage fit with the closing half shaft.

The opening structure comprises an output crank arm linked with the cam, an opening catch and a fastener, one end of the opening catch is in linkage fit with the output crank arm, the other end of the opening catch is connected with the fastener, and the fastener is in linkage fit with the opening half shaft.

Still including auxiliary switch, auxiliary switch connecting lever and connecting rod, auxiliary switch connecting lever one end is provided with U-shaped groove and output connecting lever sliding connection, the one end and the output connecting lever of connecting rod are connected, and the other end is connected with the second mounting panel.

The travel switch is in linkage fit with the first connecting piece and is arranged on the end face, far away from the second mounting plate, of the first mounting plate.

The utility model has the advantages as follows: the utility model discloses well release passes through buffering leg joint in the frame, is provided with connecting screw and spring in the four corners of buffering support, can play the effect of shock attenuation, buffering to the release, can also play locking effect to connecting bolt, can avoid the release to produce under the vibrations that produces when the mechanism moves with the frame not hard up with the skew, guarantees and corresponds the linkage cooperation of dropout board to make the circuit breaker breaking property stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

FIG. 1 is a schematic view of the internal transmission structure of the present invention;

FIG. 2 is a schematic view of the middle buffer bracket, the release and the trip plate of the present invention;

FIG. 3 is a schematic front view of the present invention;

fig. 4 is a rear view of the present invention;

fig. 5 is a schematic top view of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are merely for convenience of expression and should not be construed as limitations of the embodiments of the present invention, and the following embodiments do not describe this one by one.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the directional and positional terms used are intended to illustrate and understand the present invention and are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, for the present invention provides an embodiment:

a stable spring operating mechanism comprises a rack 1, wherein an energy storage structure, a closing structure and a separating structure which are mutually in linkage fit are arranged on the rack 1, and the stable spring operating mechanism also comprises a plurality of releases 2 and release plates 3 which are in linkage fit with the releases 2; the tripping device 2 is connected to the frame 1 through the buffering support 4, the four corners of the buffering support 4 are provided with connecting holes 5, connecting screws 6 are arranged in the connecting holes 5 and connected with the frame 1, the connecting screws 6 are sleeved with springs 7 at the parts between the frame 1 and the buffering support 4, the springs 7 are used for supporting the buffering support 4 to enable the tripping device 2 to be separated from the surface of the frame 1 by a certain distance, the connecting screws 6 are provided with elastic gaskets 8 and first nuts 9 at the parts above the buffering support 4, the structure can play a role in damping and buffering the tripping device 2 and can play a role in preventing looseness for connecting bolts, the tripping device 2 can be prevented from generating looseness and deviation with the frame 1 under vibration generated when the mechanism acts, linkage matching with the corresponding tripping plate is guaranteed, and accordingly breaking performance of the circuit breaker is stable.

And a second nut 10 is arranged between the spring 7 and the rack 1, so that the connection strength between the connecting screw rod 6 and the rack 1 is enhanced, and the stability of the release 2 in the action process is improved.

The buffer support 4 comprises an I-shaped mounting plate 401 and a U-shaped fixing plate 402 connected to the middle of the mounting plate 401, the tripper 2 is limited between the mounting plate 401 and the U-shaped fixing plate 402, the connection stability of the tripper 2 is guaranteed, and materials are saved.

Closing structure sets up combined floodgate semi-axis 11 in frame 1 including rotating, the separating brake structure sets up separating brake semi-axis 12 in frame 1 including rotating, tripping plate 3 is including closing tripping plate 301 of being connected with 11 one ends of combined floodgate semi-axis and the separating brake tripping plate 302 of being connected with 12 one ends of separating brake semi-axis, the other end of separating brake semi-axis 12 is connected with overflows tripping plate 303, tripper 2 including with closing tripping plate 301 linkage complex combined floodgate tripper 201, with separating brake tripping plate 302 linkage complex separating brake tripper 202 and with overflow tripping plate 303 linkage complex tripper 203 that overflows, in this embodiment, these three kinds of trippers all adopt buffer bracket 4 fixed, guarantee the stability of mechanism.

The rack 1 comprises a first mounting plate 101 and a second mounting plate 102 which are arranged in parallel at a certain interval, the first mounting plate 101 and the second mounting plate 102 are connected through a plurality of connecting rods, the energy storage structure provided in this embodiment comprises a first rotating shaft 13, a second rotating shaft 14, an energy storage shaft 15 and a spring hanging shaft 16 which are rotatably arranged on the first mounting plate 101 and the second mounting plate 102, a first gear 131 is arranged on the first rotating shaft 13, a second gear 141 is arranged on the second rotating shaft 14, a third gear 151 is arranged on the energy storage shaft 15, the first gear 131 is meshed with the second gear 141, the second gear 141 is meshed with the third gear 151, an energy storage motor 17 for driving the first rotating shaft 13 to rotate is further arranged on the rack 1, one end of each of the energy storage shaft 15 and the spring hanging shaft 16 extends to the outer side of the first mounting plate 101, an energy storage spring 18 is arranged between the energy storage shaft and the energy storage shaft, one end of the energy storage shaft 15 extending to the outer side of the first mounting plate 101 is connected with an energy storage crank arm 19, one end of the energy storage shaft 15 extending to the outer side of the first mounting plate 101 is provided with a connecting groove 21, one end of the energy storage spring 18 is connected with a first connecting piece 20 and the energy storage crank arm 19, the other end of the energy storage spring is connected with an adjusting bolt assembly 22 and is connected with the connecting groove 21, the adjusting bolt assembly 22 comprises a screw rod and a nut, a driving claw 23 is arranged on the third gear 151, a cam 24 is arranged on the part of the energy storage shaft 15 positioned between the third gear 151 and the second mounting plate 102, a driving disc 25 is arranged on the part of the energy storage shaft 15 positioned between the third gear 151 and the first mounting plate 101, a bayonet 251 capable of being buckled with the driving claw 23 is arranged on the outer edge of the driving disc 25, and a linkage wheel 252 is arranged on the end face of the first mounting plate 101, which faces the driving disc 25, and a switching pin and an energy storage indicating shaft 26 which are in linkage fit with the driving claw 23 are arranged between the first mounting plate 101 and the second mounting plate 102. The first gear 131 is driven to rotate counterclockwise by the energy storage motor 17, and the third gear 151 rotates counterclockwise through gear transmission, so that the energy storage shaft 15 rotates counterclockwise, and the energy storage spring 18 is gradually elongated to store energy electrically.

The energy storage structure further comprises a manual energy storage shaft 27 and an operating handle connected with the manual energy storage shaft 27, a pawl 28 is connected to the manual energy storage shaft 27, a ratchet 29 in linkage fit with the pawl 28 is connected to the first rotating shaft 13, the manual energy storage shaft 27 is rotated, the third gear 151 rotates anticlockwise through the first gear 131 and the second gear 141, the energy storage shaft 15 rotates anticlockwise, the energy storage spring 18 is gradually elongated to store manual energy, the pawl 28 and the ratchet 29 are matched to enable the first gear 131 to rotate only under the control of the manual energy storage shaft 27, the first gear 131 cannot reversely act on the manual energy storage shaft 27, and interference between manual energy storage and electric energy storage is avoided.

The closing structure comprises an energy storage retaining latch 30, one end of the energy storage retaining latch 30 is positioned on the rotating path of the linkage wheel 252, and the other end of the energy storage retaining latch 30 is in linkage fit with a closing half shaft 11; the brake separating structure comprises an output crank arm 31, a brake separating latch 32 and a fastener 33, wherein the output crank arm 31 is in linkage with the cam 24, one end of the brake separating latch 32 is in linkage fit with the output crank arm 31, the other end of the brake separating latch is connected with the fastener 33, and the fastener 33 is in linkage fit with the brake separating half shaft 12; the device also comprises an auxiliary switch 34, an auxiliary switch crank arm 35 and a connecting rod 36, wherein one end of the auxiliary switch crank arm 35 is provided with a U-shaped groove 351 which is connected with the output crank arm 31 in a sliding way, one end of the connecting rod 36 is connected with the output crank arm 31, and the other end of the connecting rod 36 is connected with the second mounting plate 102; the travel switch 37 is in linkage fit with the first connecting piece 20, and the travel switch 37 is arranged on the end face, far away from the second mounting plate 102, of the first mounting plate 101.

The operation flow of this embodiment: when energy is stored manually or electrically, the driving pawl 23 rotates counterclockwise along with the third gear 151 until one end of the driving pawl 23 is engaged with the bayonet 251, when the energy is stored to a certain position, the switching pin is contacted with the other end of the driving pawl 23 to unlock the driving pawl 23 from the bayonet 251, meanwhile, the travel switch 37 is switched to stop the rotation of the energy storage motor 17, the energy storage spring 18 acts on the linkage wheel 252 on the driving disk 25 on the energy storage holding pawl 30 through the middle force and inertia, the other end of the energy storage holding pawl 30 acts on the closing half shaft 11, so that the stress of the system is stable, and the mechanism is in an energy storage state.

Then, a voltage within the operation range of the closing release 201 is supplied or the closing half shaft 11 is rotated clockwise, so that the energy storage holding catch 30 loses balance, the energy storage state is released, the energy storage spring 18 releases energy, the output connecting lever 31 is driven by the cam 24 to rotate clockwise, the cam 24 finishes acting, the output connecting lever 31 rotates a certain angle, the clockwise rotation is not continued, the output connecting lever and the opening system composed of the opening half shaft 12, the opening catch 32 and the fastener 33 are kept balance, and the mechanism is in a closing state. At the moment, the travel switch 37 is switched, the loop of the energy storage motor 17 is switched on, the mechanism can perform manual or electric energy storage operation in a closing state, and the mechanism can realize one reclosing operation of 'opening-0.3 s-opening-closing' in the closing and energy storage state.

When the mechanism is in a closing state, the opening tripper 202 rotates the opening half shaft 12 with a voltage in an operation range or anticlockwise, so that the fastener 33 loses balance, the closing state is relieved, and the output crank arm 31 rotates anticlockwise so that the mechanism is opened. Similarly, when a line is short-circuited, the overcurrent release 203 can be matched with the overcurrent release plate 303 to push the opening half shaft 12 to rotate, so that the mechanism is opened, and the safety of the mechanism is improved.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides a stable spring operating mechanism, including frame (1), be provided with linkage complex energy storage structure, combined floodgate structure and separating brake structure each other on frame (1), its characterized in that, still including a plurality of trippers (2) and with tripper (2) linkage complex trip plate (3), tripper (2) all connect in frame (1) through buffer bracket (4), the four corners of buffer bracket (4) all is provided with connecting hole (5), be provided with connecting screw (6) in connecting hole (5) and be connected with frame (1), connecting screw (6) are equipped with spring (7) in the part cover that lies in between frame (1) and buffer bracket (4), spring (7) are used for supporting buffer bracket (4) and make tripper (2) and frame (1) surface be separated by a certain interval, connecting screw (6) are provided with elastic washer (8) and first nut (9) in the part that lies in buffer bracket (4) top.

2. A stabilized spring operating mechanism according to claim 1, characterized in that a second nut (10) is arranged between the spring (7) and the frame (1).

3. The stable spring operating mechanism is characterized in that the buffer bracket (4) comprises an I-shaped mounting plate (401) and a U-shaped fixing plate (402) connected to the middle of the mounting plate (401), and the release (2) is limited between the mounting plate (401) and the U-shaped fixing plate (402).

4. The stable spring operating mechanism of claim 1, wherein the closing structure comprises a closing half shaft (11) rotatably disposed on the frame (1), the opening structure comprises an opening half shaft (12) rotatably disposed on the frame (1), the tripping plate (3) comprises a closing tripping plate (301) connected to one end of the closing half shaft (11) and an opening tripping plate (302) connected to one end of the opening half shaft (12), the other end of the opening half shaft (12) is connected to an overcurrent tripping plate (303), and the tripping device (2) comprises a closing tripping device (201) in linkage fit with the closing tripping plate (301), an opening tripping device (202) in linkage fit with the opening tripping plate (302), and an overcurrent tripping device (203) in linkage fit with the overcurrent tripping plate (303).

5. The stable spring operating mechanism according to claim 4, wherein the frame (1) comprises a first mounting plate (101) and a second mounting plate (102) which are arranged in parallel at a certain interval, the energy storage structure comprises a first rotating shaft (13), a second rotating shaft (14), an energy storage shaft (15) and a spring hanging shaft (16) which are rotatably arranged on the first mounting plate (101) and the second mounting plate (102), the first rotating shaft (13) is provided with a first gear (131), the second rotating shaft (14) is provided with a second gear (141), the energy storage shaft (15) is provided with a third gear (151), the first gear (131) is meshed with the second gear (141), the second gear (141) is meshed with the third gear (151), the frame (1) is further provided with an energy storage motor (17) for driving the first rotating shaft (13) to rotate, one end of each of the energy storage shaft (15) and the spring hanging shaft (16) extends to the outer side of the first mounting plate (101), a connecting groove (18) is formed between the energy storage shaft (15) and the spring hanging shaft (16), and the energy storage arm (19) extends to the outer side of the first mounting plate (101), and the energy storage arm (19) is connected with the energy storage arm (19), energy storage spring (18) one end is connected with first connecting piece (20) and energy storage connecting lever (19), and its other end is connected with adjusting bolt subassembly (22) and is connected with spread groove (21), be provided with driving pawl (23) on third gear (151), energy storage axle (15) are provided with cam (24) on the part that is located between third gear (151) and second mounting panel (102), energy storage axle (15) are provided with driving-disc (25) on the part that is located between third gear (151) and first mounting panel (101), the outward flange of driving-disc (25) is provided with bayonet socket (251) that can lock with driving pawl (23), the terminal surface of first mounting panel (101) of driving-disc (25) orientation is provided with coordinated wheel (252), be provided with between first mounting panel (101) and second mounting panel (102) and drive pawl (23) linkage complex switch pin and energy storage indication shaft (26).

6. The stable spring operating mechanism according to claim 5, wherein the energy storage structure further comprises a manual energy storage shaft (27) and an operating handle connected with the manual energy storage shaft (27), the manual energy storage shaft (27) is connected with a pawl (28), and the first rotating shaft (13) is connected with a ratchet wheel (29) in linkage fit with the pawl (28).

7. A stabilized spring operated mechanism according to claim 5 wherein the closing mechanism includes a stored energy holding pawl (30), one end of the stored energy holding pawl (30) being located in the path of rotation of the linkage wheel (252) and the other end being in interlocking engagement with the closing half shaft (11).

8. A stable spring-operated mechanism according to claim 5, characterized in that the opening structure comprises an output crank arm (31) linked with the cam (24), an opening catch (32) and a fastener (33), wherein one end of the opening catch (32) is linked and matched with the output crank arm (31), the other end is connected with the fastener (33), and the fastener (33) is linked and matched with the opening half-shaft (12).

9. The stable spring operating mechanism of claim 8, further comprising an auxiliary switch (34), an auxiliary switch crank arm (35) and a connecting rod (36), wherein one end of the auxiliary switch crank arm (35) is provided with a U-shaped groove (351) to be slidably connected with the output crank arm (31), one end of the connecting rod (36) is connected with the output crank arm (31), and the other end is connected with the second mounting plate (102).

10. A stabilized spring operated mechanism according to claim 5 further comprising a travel switch (37) in cooperating engagement with the first link (20), the travel switch (37) being disposed on an end face of the first mounting plate (101) remote from the second mounting plate (102).