CN218123298U

CN218123298U - Rapid switching-on and switching-off action mechanism for power circuit breaker

Info

Publication number: CN218123298U
Application number: CN202221596595.8U
Authority: CN
Inventors: 齐东流; 张致良
Original assignee: Anhui Wohua Power Equipment Co ltd
Current assignee: Anhui Wohua Power Equipment Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-12-23
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a based on electric power circuit breaker is with closing separating brake actuating mechanism fast, the on-line screen storage device comprises a base, the top fixedly connected with control box of base, and the left side fixedly connected with vacuum interrupter at control box top, the utility model relates to an electric power circuit breaker technical field. This based on electric circuit breaker is with closing separating brake action mechanism fast, and then the divide-shut brake action of steerable three-phase insulation pull rod, the transmission shaft connecting lever passes through the spring energy storage, can realize springing open fast, and through the bottom sets up the electromagnetic plate in electromagnetism divide-shut brake mechanism, utilize the strong magnetic field that the heavy current that increases suddenly produced, can upwards push up the top and push away U type magnetic sleeve and make trapezoidal fixture block slide out and unblock wedge to both sides, can make the spring pull-up transmission shaft connecting lever, realize the quick release of elasticity potential energy, the reaction is quick, magnetic field can carry out the helping hand simultaneously and promote the transmission shaft connecting lever, further improve its pivoted speed, and then further improve the reaction rate of separating brake.

Description

Rapid switching-on and switching-off action mechanism for power circuit breaker

Technical Field

The utility model relates to a power circuit breaker technical field specifically is a based on power circuit breaker is with closing fast separating brake actuating mechanism.

Background

Vacuum circuit breakers have been developed in the last 50 s, and many circuit breakers with different operating mechanisms have been developed through continuous improvement in the use process of different environments in different fields of power systems. The mechanism with the longest service life span, the largest use field, the largest use number and the most stable performance is the spring energy storage type operating mechanism breaker.

The method has the characteristics of simple operation, large breaking current, stable opening and closing actions, long mechanical life and the like; the disadvantage is that the switching-on and switching-off speed is slow.

However, with the advance of modern technology, the spring-operated mechanism type circuit breaker cannot meet the requirement of the application scene of the power system on the switching speed and the closing speed. Particularly, when a heavy-load line fails, the brake is required to be rapidly disconnected to cut off heavy current, and arcing between fractures of the vacuum tube is prevented.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a based on power circuit breaker is with quick separating brake actuating mechanism that closes has solved current vacuum circuit breaker and has divided, closing speed is slow, the problem of separating brake requirement when can not satisfying the heavy load line trouble.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a based on power circuit breaker is with quick separating brake operating device, the on-line screen storage device comprises a base, the top fixedly connected with control box of base, and the left side fixedly connected with vacuum interrupter at control box top, fixedly connected with digital control module is run through on the right side at control box top, vacuum interrupter's inside longitudinal sliding connection has the three-phase insulation pull rod, and the bottom of three-phase insulation pull rod extends to inside the control box, the bottom of control box inner chamber is rotated and is connected with the transmission shaft connecting lever, and the bottom of three-phase insulation pull rod rotates with transmission shaft connecting lever left end and is connected, the inside lower right corner fixedly connected with of control box drives transmission shaft connecting lever right-hand member pivoted electromagnetism divide-shut brake mechanism.

Electromagnetism divide-shut brake mechanism includes the frame, the bottom fixedly connected with electromagnetic plate of frame internal surface, the fixed cover of one end that the transmission shaft turning arm is located the frame inside is equipped with permanent magnetism cover, the equal fixedly connected with wedge in both sides of permanent magnetism cover, two sets of spacing seats that slide about the equal fixedly connected with in both sides around the frame internal surface, and slide connection has trapezoidal fixture block between the spacing seat of upper and lower slip, the wedge can be blocked by it when removing to trapezoidal fixture block, the outside slip cover of trapezoidal fixture block is equipped with U type magnetic sleeve, oblique guide way has all been seted up to both sides around the U type magnetic sleeve, equal fixedly connected with in both sides and oblique guide way internal surface sliding connection's slide bar around the trapezoidal fixture block, produce the magnetic field that repels with permanent magnetism cover and U type magnetic sleeve when the electromagnetic plate circular telegram.

Preferably, the transmission shaft connecting lever is close to the equal fixedly connected with of both sides hanging piece around the electromagnetism divide-shut brake mechanism one end, the inside of control box just is located the top fixedly connected with horizontal pole on the right half of transmission shaft connecting lever, and has articulated the spring between horizontal pole and the hanging piece.

Preferably, the top of U type magnetic sleeve and permanent magnetism cover is provided with the jacking frame, the jacking frame includes the diaphragm, the middle fixedly connected with center ejector pin of diaphragm bottom, the equal fixedly connected with slide in bottom at diaphragm both ends, the equal fixedly connected with in top of both sides runs through the inserted bar of slide around the frame internal surface, and the inside of slide set up with inserted bar sliding connection's spout.

Preferably, the middle of diaphragm top fixedly connected with rotor plate, the right side of control box runs through to rotate and is connected with the brake lever, the left end of brake lever is rotated the cover and is established in the rotor plate outside.

Preferably, the control box is internally and fixedly connected with an electric push rod right above the sliding plate, and the output end of the electric push rod is opposite to the sliding plate.

Preferably, the top end of the three-phase insulation pull rod is fixedly connected with a lower electrode plate, and the inside of the vacuum arc extinguish chamber is fixedly connected with an upper electrode plate at the top of the lower electrode plate.

Advantageous effects

The utility model provides a based on electric power circuit breaker is with closing separating brake actuating mechanism fast. Compared with the prior art, the method has the following beneficial effects:

(1) This based on quick switching-on/off action mechanism for power circuit breaker, through setting up the rotation of electromagnetism divide-off brake mechanism control transmission shaft connecting lever, and then the divide-off brake action of steerable three-phase insulation pull rod, the transmission shaft connecting lever passes through the spring energy storage, can realize quick bullet and open, and through set up the electromagnetic plate in electromagnetism divide-off brake mechanism bottom, utilize the strong magnetic field that the heavy current that increases suddenly produced, can upwards push up the top and push away U type magnetic sleeve and make trapezoidal fixture block slide to both sides and unblock wedge, can make the spring pull up the transmission shaft connecting lever, realize the quick release of elastic potential energy, the reaction is quick, magnetic field can carry out the helping hand simultaneously and promote the transmission shaft connecting lever, further improve its pivoted speed, and then further improve the reaction rate of separating brake.

(2) This based on electric power circuit breaker is with closing fast separating brake action mechanism uses through setting up the cooperation jacking frame, can carry out manual combined floodgate operation, and sets up electric putter push down jacking frame, can realize electronic combined floodgate, can carry out remote control, and two kinds of operation methods have satisfied different service conditions, and it is more convenient to use.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

fig. 2 is a side view of the electromagnetic opening and closing mechanism of the present invention;

fig. 3 is a cross-sectional view of the jacking frame of the present invention.

In the figure: the device comprises a base 1, a control box 2, a vacuum arc extinguish chamber 3, a digital control module 4, a three-phase insulating pull rod 5, a transmission shaft crank arm 6, an electromagnetic opening and closing mechanism 7, a frame 71, an electromagnetic plate 72, an electromagnetic plate 73, a permanent magnetic sleeve 74, a wedge block 75, a sliding limiting seat 76, a trapezoidal clamping block 77, a U-shaped magnetic sleeve 78, a sliding rod 8, a jacking frame 81, a transverse plate 82, a central ejector rod 84, a sliding plate 85, a rotating plate 9, a transverse rod 10, a spring 11, a hanging block 11, a brake rod 12, a lower electrode plate 13, an upper electrode plate 14, an electric push rod 15 and an inserted rod 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a based on power circuit breaker is with closing separating brake actuating mechanism fast, which comprises a base 1, base 1's top fixedly connected with control box 2, and the left side fixedly connected with vacuum interrupter 3 at 2 tops of control box, fixedly connected with digital control module 4 runs through on the right side at 2 tops of control box, vacuum interrupter 3's inside longitudinal sliding connection has three-phase insulation pull rod 5, and three-phase insulation pull rod 5's bottom extends to inside 2 of control box, three-phase insulation pull rod 5's top fixedly connected with bottom plate 13, vacuum interrupter 3's inside just is located bottom plate 13 top fixedly connected with and goes up electrode plate 14, the bottom of 2 inner chambers of control box rotates and is connected with transmission shaft connecting lever 6, and the bottom of three-phase insulation pull rod 5 rotates with transmission shaft connecting lever 6 left end to be connected, the inside lower right corner fixedly connected with of control box 2 drives transmission shaft connecting lever 6 right-hand member pivoted electromagnetic brake actuating mechanism 7.

The electromagnetic opening and closing mechanism 7 comprises a frame 71, an electromagnetic plate 72 is fixedly connected to the bottom of the inner surface of the frame 71, a permanent magnetic sleeve 73 is fixedly sleeved at one end, located inside the frame 71, of the transmission shaft connecting lever 6, wedge-shaped blocks 74 are fixedly connected to two sides of the permanent magnetic sleeve 73, an upper sliding limiting seat 75 and a lower sliding limiting seat 75 are fixedly connected to the front side and the rear side of the inner surface of the frame 71, a trapezoidal clamping block 76 is slidably connected between the upper sliding limiting seat 75 and the lower sliding limiting seat 76, the wedge-shaped blocks 74 can be clamped by the trapezoidal clamping block when moving to the trapezoidal clamping block 76, a U-shaped magnetic sleeve 77 is slidably sleeved outside the trapezoidal clamping block 76, oblique guide grooves are formed in the front side and the rear side of the U-shaped magnetic sleeve 77, sliding rods 78 connected with the inner surface of the oblique guide grooves are fixedly connected to the front side and the rear side of the trapezoidal clamping block 76, and a magnetic field repulsive to the permanent magnetic sleeve 73 and the U-shaped magnetic sleeve 77 is generated when the electromagnetic plate 72 is electrified. The rotation of the transmission shaft connecting lever 6 is controlled by arranging the electromagnetic opening and closing mechanism 7, the opening and closing action of the three-phase insulation pull rod 5 can be controlled, the transmission shaft connecting lever 6 can realize quick springing open by storing energy through the spring 10, the electromagnetic plate 72 is arranged at the bottom in the electromagnetic opening and closing mechanism 7, and the strong magnetic field generated by suddenly increased large current is utilized to upwards push the U-shaped magnetic sleeve 77 to slide the trapezoid clamping block 76 to two sides and unlock the wedge-shaped block 74, so that the transmission shaft connecting lever 6 can be pulled upwards by the spring 10, the quick release of elastic potential energy is realized, the reaction is quick, meanwhile, the magnetic field can be assisted to push the transmission shaft connecting lever 6, the rotating speed of the transmission shaft connecting lever is further improved, and the reaction speed of opening and closing is further improved.

The equal fixedly connected with of both sides articulates piece 11 around transmission shaft connecting lever 6 is close to electromagnetism divide-shut brake mechanism 7 one end, and the inside of control box 2 just is located the top fixedly connected with horizontal pole 9 on the right half of transmission shaft connecting lever 6, and articulates between horizontal pole 9 and the piece 11 that articulates there is spring 10.

The top of U type magnetic sleeve 77 and permanent magnetism cover 73 is provided with jacking frame 8, jacking frame 8 includes diaphragm 81, the middle fixedly connected with center top rod 82 of diaphragm 81 bottom, the equal fixedly connected with slide 84 in bottom at diaphragm 81 both ends, the equal fixedly connected with in top of both sides runs through slide 84's inserted bar 16 around the frame 71 internal surface, and slide 84's inside offer with inserted bar 16 sliding connection's spout, the middle fixedly connected with rotor plate 85 at diaphragm 81 top, the right side of control box 2 runs through to rotate and is connected with brake lever 12, the left end of brake lever 12 is rotated the cover and is established at rotor plate 85 outsidely.

An electric push rod 15 is fixedly connected inside the control box 2 and right above the sliding plate 84, and the output end of the electric push rod 15 is opposite to the sliding plate 84. Through setting up the use of cooperation jacking frame 8, can carry out manual switching-on operation, and set up jacking frame 8 under electric putter 15, can realize electronic switching-on, can carry out remote control, two kinds of operation methods have satisfied different service conditions, and it is more convenient to use.

And those not described in detail in this specification are well within the skill of the art.

When the device is used, in a manual mode, the outer end of the brake lever 12 can be lifted up, the inner end of the brake lever can be pressed down to press the jacking frame 8, the right end of the crank arm 6 of the transmission shaft is pressed down, the wedge blocks 74 on two sides of the crank arm push the trapezoidal fixture block 76, when the device moves below the trapezoidal fixture block 76, under the gravity of the U-shaped magnetic sleeve 77, the slide rod 78 pushes the trapezoidal fixture block 76 to be close to the middle, the wedge blocks 74 are pressed to realize locking, and meanwhile, the crank arm 6 of the transmission shaft pulls the spring 10 to realize force storage; in the electric mode, the electric push rod 15 is started to push the jacking frame 8 downwards to realize the rotation and locking of the transmission shaft crank arm 6, and then the electric push rod 15 contracts.

When the current is too large due to circuit faults, the electromagnetic plate 72 generates a large magnetic field to push the permanent magnet sleeve 73 and the U-shaped magnetic sleeve 77 upwards, the trapezoidal clamping blocks 76 are pushed to two sides through the sliding rods 78 when the U-shaped magnetic sleeve 77 moves upwards, the wedge-shaped blocks 74 are unlocked, the transmission shaft connecting lever 6 quickly pops upwards under the action of repulsion force and the tension force of the spring 10, the three-phase insulating pull rod 5 is pulled to descend by the left end, and the lower electrode plate 13 and the upper electrode plate 14 are separated to realize brake separation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a based on electric power circuit breaker is with closing fast separating brake actuating mechanism, includes base (1), its characterized in that: the intelligent control device is characterized in that a control box (2) is fixedly connected to the top of the base (1), a vacuum arc-extinguishing chamber (3) is fixedly connected to the left side of the top of the control box (2), a digital control module (4) penetrates through and is fixedly connected to the right side of the top of the control box (2), a three-phase insulating pull rod (5) is longitudinally and slidably connected to the inside of the vacuum arc-extinguishing chamber (3), the bottom end of the three-phase insulating pull rod (5) extends into the control box (2), a transmission shaft crank arm (6) is rotatably connected to the bottom of an inner cavity of the control box (2), the bottom end of the three-phase insulating pull rod (5) is rotatably connected with the left end of the transmission shaft crank arm (6), and an electromagnetic opening and closing mechanism (7) for driving the right end of the transmission shaft crank arm (6) to rotate is fixedly connected to the lower right corner of the inside of the control box (2);

electromagnetism divide-shut brake mechanism (7) include frame (71), bottom fixedly connected with electromagnetic plate (72) of frame (71) internal surface, transmission shaft turning arm (6) are located the fixed cover of the inside one end of frame (71) and are equipped with permanent magnetism cover (73), the equal fixedly connected with wedge (74) in both sides of permanent magnetism cover (73), two sets of slip spacing seats (75) about the equal fixedly connected with in both sides around frame (71) internal surface, and sliding connection has trapezoidal fixture block (76) between the spacing seat of sliding from top to bottom, wedge (74) can be blocked by it when moving to trapezoidal fixture block (76), the outside slip cover of trapezoidal fixture block (76) is equipped with U type magnetic sleeve (77) forever, oblique guide way has all been seted up to both sides around U type magnetic sleeve (77), the equal fixedly connected with in both sides around trapezoidal fixture block (76) with oblique guide way internal surface sliding connection's slide bar (78), electromagnetic plate (72) produce the magnetic field that repels with permanent magnetism cover (73) and U type magnetic sleeve (77) when circular telegram.

2. The quick opening and closing action mechanism for the power circuit breaker as claimed in claim 1, wherein: equal fixedly connected with linking piece (11) in both sides around transmission shaft turning arm (6) is close to electromagnetism divide-shut brake mechanism (7) one end, the inside of control box (2) just is located transmission shaft turning arm (6) top fixedly connected with horizontal pole (9) of half right, and has linked spring (10) with linking between piece (11) horizontal pole (9).

3. The quick opening and closing action mechanism for the power circuit breaker as claimed in claim 1, wherein: the top of U type magnetic sleeve (77) and permanent magnetism cover (73) is provided with jacking frame (8), jacking frame (8) are including diaphragm (81), the middle fixedly connected with center ejector pin (82) of diaphragm (81) bottom, the equal fixedly connected with slide (84) in bottom at diaphragm (81) both ends, the equal fixedly connected with in top of both sides runs through inserted bar (16) of slide (84) around frame (71) internal surface, and the inside of slide (84) seted up with inserted bar (16) sliding connection's spout.

4. The quick opening and closing action mechanism for the power circuit breaker according to claim 3, wherein: the middle of diaphragm (81) top fixedly connected with rotor plate (85), the right side of control box (2) is run through to rotate and is connected with brake lever (12), the left end of brake lever (12) is rotated the cover and is established in rotor plate (85) outside.

5. The quick opening and closing action mechanism based on the power breaker as claimed in claim 3, wherein: the control box (2) is internally and fixedly connected with an electric push rod (15) right above the sliding plate (84), and the output end of the electric push rod (15) is right opposite to the sliding plate (84).

6. The quick opening and closing action mechanism for the power circuit breaker as claimed in claim 1, wherein: the top fixedly connected with of three-phase insulation pull rod (5) is plate electrode (13) down, the inside of vacuum interrupter (3) just is located plate electrode (13) top fixedly connected with of down and goes up electrode (14).