CN109036984B

CN109036984B - Automatic and manual dual-purpose safety control device for circuit breaker

Info

Publication number: CN109036984B
Application number: CN201810724146.9A
Authority: CN
Inventors: 苏勇强; 朱永波; 危美华
Original assignee: Fujian Zhongwang Electric Co ltd
Current assignee: Fujian Zhongwang Electric Co ltd
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2023-10-13
Anticipated expiration: 2038-07-04
Also published as: CN109036984A

Abstract

The invention relates to an automatic and manual dual-purpose safety control device of a circuit breaker, in particular to the technical field of circuit breakers. The automatic and manual dual-purpose safety control device for the circuit breaker comprises a case, a spring control mechanism and a switching-on and switching-off control mechanism, wherein the spring control mechanism is arranged in the case and comprises a supporting steel plate, a driving motor, an energy storage travel switch, an energy storage clutch, an energy storage spring, a first spline shaft and a second spline shaft, and the switching-on and switching-off control mechanism comprises a transmission shaft, a transmission connecting rod, a buffer mechanism, a switching-on and switching-off indicator and a switching-off spring.

Description

Automatic and manual dual-purpose safety control device for circuit breaker

Technical Field

The invention relates to the technical field of circuit breakers, in particular to an automatic and manual dual-purpose safety control device of a circuit breaker.

Background

Today, in the great background of the high-speed development of the power industry, the circuit breaker manufacturing industry has also been developed as one of the guarantees of the development of the power industry. The circuit breaker mainly plays a role in switching on and switching off a distribution line in the working process, the operating device of the circuit breaker is an important device capable of enabling a moving contact and a fixed contact in the circuit breaker to be switched on and off instantaneously, the circuit breaker is responsible for completing a series of actions such as energy storage, energy storage maintenance, switching on maintenance and switching off, whether the performance of the circuit breaker is stable and reliable or not directly influences the stability and safety of the operation of a power grid circuit, and the performance of the circuit breaker mainly depends on the performance of the operating device in the circuit breaker, so that the improvement of the performance of the operating device of the circuit breaker has important practical application significance.

In the current breaker in the market, the operating device of the breaker comprises a plurality of parts, and as the parts are assembled in a case in a scattered way, the requirement of the assembly process is high, the difficulty in controlling the quality stability of products is very high, and the on-off tripping in the operating device of the existing breaker is usually half-shaft tripping, in practical application, the on-off and off-off preventing condition of the breaker is easily caused once the operation time is long or the corrosion is rusted, so that the stability and the safety of the operation of a power grid circuit are seriously affected.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to solve the problems that the scattered assembly of parts of an operating device of the existing circuit breaker affects the product performance, and the circuit breaker is easy to generate refusing and refusing separation due to the relation of tripping of a half shaft so as to seriously affect the stability and the safety of the operation of a power grid circuit.

(2) Technical proposal

In order to solve the defects in the prior art, the invention provides an automatic and manual dual-purpose safety control device of a circuit breaker, which adopts the following technical scheme:

the automatic and manual dual-purpose safety control device for the circuit breaker comprises a case, a spring control mechanism and a switching-on and switching-off control mechanism, wherein the spring control mechanism and the switching-on and switching-off control mechanism are arranged in the case, and the switching-on and switching-off control mechanism is arranged above the spring control mechanism; the spring operating mechanism comprises a supporting steel plate, a protective steel plate, a driving motor, an energy storage travel switch, an energy storage clutch, an energy storage spring, a first rotating shaft, a second rotating shaft, a third rotating shaft, a first spline shaft, a fifth rotating shaft, a sixth rotating shaft, a second spline shaft and an eighth rotating shaft, wherein the driving motor, the energy storage travel switch, the energy storage clutch, the energy storage spring, the first rotating shaft, the second rotating shaft, the third rotating shaft, the first spline shaft, the fifth rotating shaft, the sixth rotating shaft, the second spline shaft and the eighth rotating shaft are arranged on the supporting steel plate, the energy storage clutch is sleeved on the first rotating shaft, the center line of the first spline shaft coincides with the center line of the eighth rotating shaft, the output shaft of the driving motor is connected with a seventh rotating shaft, the seventh rotating shaft is connected with a first sprocket, the first sprocket is connected with a second sprocket and a first gear, the first sprocket and the second sprocket are connected with a turning arm of the energy storage switch through a first chain, the energy storage switch crank arm is connected with a first auxiliary roller, one end of the energy storage switch crank arm is connected with the energy storage travel switch, the other end of the energy storage switch crank arm is connected with the energy storage clutch through a first connecting rod, the third rotating shaft is connected with a second gear and a third gear, the second gear is meshed with the first gear, the first spline shaft is sleeved with a fourth gear, a driving crank arm and an auxiliary crank arm through a one-way bearing, the fourth gear is meshed with the third gear, the driving crank arm is provided with a first roller, the eighth rotating shaft is connected with a second connecting rod through a pin shaft, one side of the auxiliary crank arm is connected with a fourth connecting rod through a pin shaft, the other side of the auxiliary crank arm is provided with a first auxiliary bulge, the first auxiliary bulge is in movable contact with the first auxiliary roller, the fifth rotating shaft is connected with a closing pawl, the automatic switching-on device is characterized in that the switching-on device is connected with a torsion spring, the sixth rotating shaft is connected with a switching-on release, the switching-on release is connected with a torsion spring, the switching-on release is connected with a switching-on electromagnet, one end of the switching-on release is connected with a second roller, one end of the switching-on device is in movable contact with the first roller, the other end of the switching-on device is in movable contact with the second roller, a driven crank arm and a switching-on push arm are sleeved on a second spline shaft, one end of the driven crank arm is connected with a second auxiliary roller, the other end of the driven crank arm is connected with a third auxiliary roller, the switching-on push arm is connected with a universal shaft connecting rod through a pin shaft, and the spring operating mechanism is connected with a switching-on and switching-off control mechanism through the universal shaft connecting rod.

Preferably, the on-off control mechanism comprises a transmission shaft, a transmission connecting rod, a vacuum switch tube, a buffer mechanism, an on-off indicator, an auxiliary change-over switch, an off-off spring and a connecting sheet fixed on the top of the case, wherein the transmission connecting rod is internally provided with the spring, the on-off indicator is movably connected with an on-off counter, an L-shaped crank arm, a first pushing arm, a second pushing arm and a third pushing arm are connected on the transmission shaft, one end of the off-off spring is connected with one end of the L-shaped crank arm, the other end of the off-off spring is connected with the connecting sheet, the other end of the L-shaped crank arm is connected with the transmission connecting rod, the first pushing arm is connected with the auxiliary change-over switch through the third connecting rod, the second pushing arm is connected with the universal shaft connecting rod, the transmission connecting rod is connected with an insulation pull rod, the insulation pull rod is connected with a moving contact, the moving contact is arranged in the vacuum switch tube, the moving contact is movably contacted with the moving contact, and the on-off indicator is respectively connected with the third pushing arm.

Preferably, a chute and a ninth rotating shaft are fixed on the supporting steel plate, the ninth rotating shaft is connected with a third sprocket, the energy storage spring is arranged in the chute, one end of the energy storage spring is connected with a baffle, the baffle is connected with a second chain, the second chain bypasses the third sprocket and is connected with the fourth connecting rod, and the second chain is movably connected with the third sprocket.

Preferably, the spring operating mechanism further comprises a brake separating mechanism, the brake separating mechanism comprises a tenth rotating shaft, an eleventh rotating shaft, a brake separating handle and a brake separating electromagnet, wherein the tenth rotating shaft is arranged on the supporting steel plate, the tenth rotating shaft is connected with a brake separating pawl, the brake separating pawl is provided with a hook head, the brake separating pawl is connected with a torsion spring, the brake separating pawl is in movable contact with the third auxiliary roller, the eleventh rotating shaft is connected with a brake separating release, one end of the brake separating release is connected with the brake separating electromagnet, the other end of the brake separating release is provided with a fourth auxiliary roller, the fourth auxiliary roller is in movable contact with the hook head, the brake separating release is provided with a second auxiliary bulge, the brake separating handle is connected with a brake separating rod and a brake separating rod, and the brake separating rod is in movable contact with the second auxiliary bulge.

Preferably, a third auxiliary protrusion is arranged at the other end of the closing release, and the third auxiliary protrusion is in movable contact with the closing rod.

Preferably, the lower end of the closing pawl is provided with an avoidance notch, the driven crank arm is provided with a fifth auxiliary roller, and the fifth auxiliary roller is in movable contact with the avoidance notch.

Preferably, the first rotating shaft penetrates through the protection steel plate to be connected with an energy storage rotating shaft, and the eighth rotating shaft is provided with an energy storage indicating pointer.

(3) Advantageous effects

The invention controls the first sprocket wheel to rotate through the driving motor, thereby driving the second sprocket wheel to rotate through the first chain, then driving the first rotating shaft to rotate, simultaneously, the first rotating shaft is connected with the energy storage rotating shaft through the protection steel plate, the energy storage rotating shaft can be manually rotated to rotate the first rotating shaft, thereby driving the second sprocket wheel to rotate, then driving the first gear wheel to rotate through the rotation of the second sprocket wheel, then driving the second gear wheel meshed with the first gear wheel to rotate through the first gear wheel, thereby driving the third gear wheel coaxial with the first gear wheel to rotate, driving the fourth gear wheel meshed with the third gear wheel to rotate, thereby driving the coaxial driving crank arm and the auxiliary crank arm to rotate, wherein the rotation of the auxiliary crank arm can pull the second chain, thereby compressing the energy storage spring to store energy, after the energy storage spring completes energy storage, the device keeps the energy storage state through setting the closing pawl to prop against the first roller wheel, at this time, the first auxiliary bulge is arranged to push the first auxiliary roller to enable the energy storage switch crank arm to rotate clockwise, on one hand, the energy storage travel switch can be driven, the driving motor is stopped through the energy storage travel switch, on the other hand, the energy storage clutch is driven through the first connecting rod to separate the second chain wheel from the linkage state with the first rotating shaft, so that the mechanical damage caused by the continuous rotation of the energy storage rotating shaft due to the control failure of the motor is prevented, the torsion spring is arranged on the closing pawl, then the closing release is arranged, the torsion spring is arranged on the closing release, then the other end of the closing pawl is propped against the second roller on the closing release, then the automatic control of the releasing operation of the closing release is realized through the arrangement of the closing electromagnet, the closing lever is arranged on the closing release, then the third auxiliary bulge is arranged on the closing release, the closing lever is contacted with the third auxiliary bulge, realizing the tripping operation of the manual control switching-on release, connecting a driven crank arm with a switching-on push arm through a second spline shaft, after releasing energy storage, enabling a driving crank arm to rotate anticlockwise and contact a second auxiliary roller on the driven crank arm, thereby enabling the driven crank arm to rotate clockwise and driving the switching-on push arm to rotate clockwise, pushing a universal shaft connecting rod to move upwards through the switching-on push arm, pushing an L-shaped crank arm to rotate clockwise, pushing a second push arm, a first push arm and a third push arm to rotate through the linkage action of a transmission shaft and pushing a transmission connecting rod to move, wherein a spring in the transmission connecting rod provides pressure required by switching-on for a movable contact and a fixed contact, realizing the operations of contact switching-on indication, counting, switching-off spring energy storage and the like, and setting a fifth auxiliary roller on the driven crank arm through setting a avoidance notch at the lower end of a switching-on pawl, when the driven crank arm rotates to switch on, the fifth auxiliary roller can prop against the avoiding gap, fix the switching-on pawl, prevent misoperation and then enable the mechanism to switch on, then the switching-on release is arranged, the switching-on release is connected with the switching-on electromagnetic iron to realize automatic switching-on operation, the switching-on release handle is provided with a switching-on lever to realize manual switching-on operation, then the switching-on pawl is provided with a hook head, the fourth auxiliary roller arranged on the switching-on release is in interactive contact with the hook head to realize the rotation of the switching-on pawl, then the driven crank arm is provided with a third auxiliary roller in movable contact with the switching-on pawl to realize the purpose of controlling the switching-on retention by the switching-on release, the invention divides the operating device into a spring operating mechanism and a switching-on and switching-off control mechanism through modularized arrangement, the high-voltage power supply is characterized in that a plurality of parts are fixed in a chassis in a modularized structure, the integration degree is high, the implementation is convenient, the installation, the maintenance and the replacement are very convenient, the structure is compact, the manual and automatic multi-mode energy storage, switching on and switching off and other operations are realized through the cooperation between the structure and the structure, the safety performance of the operating device is improved in practical application, the safety performance of the circuit breaker is improved, the whole operating device is decomposed in a modularized mode, the assembly quality of each modularization is respectively controlled, each module is finally assembled, meanwhile, the switching-on and switching-off tripping is designed into secondary transmission, the mechanical structure is optimized, and the safe and stable operating device can be obtained.

Drawings

Fig. 1 is a schematic structural view of an automatic and manual dual-purpose safety operating device for a circuit breaker according to the present invention.

Fig. 2 is a schematic structural view of the spring operating mechanism in the closing energy storage state of the present invention.

FIG. 3 is a schematic view of the spring operated mechanism in the open-brake, non-stored state of the present invention.

Fig. 4 is a rear view of the structure of the spring operated mechanism of the present invention.

Fig. 5 is a schematic diagram of the operation of the spring operated mechanism in the open brake energy storage state of the present invention.

Fig. 6 is a schematic diagram of the operation of the spring operating mechanism of the present invention in the closed, non-stored state.

The reference numerals in the drawings are: 1-case, 2-spring operating mechanism, 3-switching-on and switching-off control mechanism, 4-supporting steel plate, 41-protecting steel plate, 21-driving motor, 22-energy storage travel switch, 23-energy storage clutch, 24-energy storage spring, 100-first rotating shaft, 200-second rotating shaft, 300-third rotating shaft, 400-first spline shaft, 500-fifth rotating shaft, 600-sixth rotating shaft, 5-second spline shaft, 800-eighth rotating shaft, 700-seventh rotating shaft, 701-first sprocket, 101-second sprocket, 102-first gear, 61-first chain, 201-energy storage switch turning arm, 2011-first auxiliary roller, 231-first connecting rod, 301-second gear, 302-third gear, 401-fourth gear, 402-driving crank arm, 403-auxiliary crank arm, 4021-first roller, 801-second link, 802-fourth link, 4031-first auxiliary boss, 501-closing pawl, 601-closing release, 602-closing electromagnet, 6011-second roller, 51-driven crank arm, 52-closing push arm, 511-second auxiliary roller, 512-third auxiliary roller, 7-cardan shaft link, 31-transmission shaft, 32-transmission link, 33-vacuum switch tube, 34-buffer mechanism, 35-closing and opening indicator, 351-closing and opening counter, 36-auxiliary switch, 37-opening spring, 38-connecting piece, 311-L-shaped crank arm, 312-first push arm, 313-second push arm, 314-third pushing arms, 3121-third connecting rods, 321-insulating pull rods, 322-moving contacts, 331-static contacts, 241-sliding grooves, 900-ninth rotating shafts, 901-third chain wheels, 242-baffle plates, 62-second chains, 8-brake separating mechanisms, 81-tenth rotating shafts, 82-eleventh rotating shafts, 83-brake separating handles, 84-brake separating electromagnets, 85-brake separating catches, 86-brake separating trippers, 851-hook heads, 861-fourth auxiliary rollers, 862-second auxiliary bulges, 831-brake separating rods, 832-third auxiliary bulges, 513-fifth auxiliary rollers and 9-energy storage rotating shafts.

Detailed Description

Referring to fig. 1-6, the automatic and manual dual-purpose safety control device for a circuit breaker of the invention comprises a case 1, a spring control mechanism 2 and a switching-on and switching-off control mechanism 3, wherein the spring control mechanism 2 is arranged in the case 1, and the switching-on and switching-off control mechanism 3 is arranged above the spring control mechanism 2; the spring operating mechanism 2 comprises a supporting steel plate 4, a protecting steel plate 41, a driving motor 21, an energy storage travel switch 22, an energy storage clutch 23, an energy storage spring 24, a first rotating shaft 100, a second rotating shaft 200, a third rotating shaft 300, a first spline shaft 400, a fifth rotating shaft 500, a sixth rotating shaft 600, a second spline shaft 5 and an eighth rotating shaft 800 arranged on the protecting steel plate 41, wherein the energy storage clutch 23 is sleeved on the first rotating shaft 100, the central line of the first spline shaft 400 coincides with the central line of the eighth rotating shaft 800, the output shaft of the driving motor 21 is connected with a seventh rotating shaft 700, the seventh rotating shaft 700 is connected with a first sprocket 701, the first rotating shaft 100 is connected with a second sprocket 101 and a first gear 102, the second sprocket 101 is connected with the energy storage clutch 23, the first sprocket 701 is connected with the second sprocket 101 through a first chain 61, the second rotating shaft 200 is connected with an energy storage switch crank arm 201, the energy storage switch crank arm 201 is connected with a first auxiliary roller 2011, one end of the energy storage switch crank arm 201 is connected with the energy storage travel switch 22, the other end of the energy storage switch crank arm 201 is connected with the energy storage clutch 23 through a first connecting rod 231, the third rotating shaft 300 is connected with a second gear 301 and a third gear 302, the second gear 301 is meshed with the first gear 102, the first spline shaft 400 is sleeved with a fourth gear 401, a driving crank arm 402 and an auxiliary crank arm 403 through unidirectional bearings, the fourth gear 401 is meshed with the third gear 302, the driving crank arm 402 is provided with a first roller 4021, the eighth rotating shaft 800 is connected with a second connecting rod 801 through a pin shaft, one side of the auxiliary crank arm 403 is connected with one end of the second connecting rod 801 through a pin shaft, the fourth connecting rod 802 is connected with the eighth connecting rod 801 through a pin shaft, the auxiliary crank arm 403 opposite side is equipped with first auxiliary bulge 4031, first auxiliary bulge 4031 with first auxiliary roller 2011 movable contact, fifth pivot 500 is connected with the sincere son 501 of combined floodgate, the sincere son 501 of combined floodgate is connected with the torsional spring, sixth pivot 600 is connected with combined floodgate release 601, combined floodgate release 601 is connected with the torsional spring, combined floodgate release 601 is connected with switching-on electromagnet 602, combined floodgate release 601 one end is connected with second gyro wheel 6011, sincere son 501 one end with first gyro wheel 4021 movable contact, sincere son 501 other end of combined floodgate with second gyro wheel 6011 movable contact, driven crank arm 51, combined floodgate push arm 52 have been cup jointed on the second spline shaft 5, driven crank arm 51 one end is connected with second auxiliary roller 511, the driven crank arm 51 other end is connected with third auxiliary gyro wheel 512, combined floodgate push arm 52 utilizes the round pin hub connection to have universal shaft connecting rod 7, spring operating mechanism 2 with combined floodgate control mechanism 3 passes through universal shaft connecting rod 7.

In order to better optimize the structure of the automatic and manual dual-purpose safety operating device of the circuit breaker and achieve the purposes of compact structure, convenient installation and maintenance and improved safety performance, the switching-on and switching-off control mechanism 3 comprises a transmission shaft 31, a transmission connecting rod 32, a vacuum switch tube 33, a buffer mechanism 34, a switching-on and switching-off indicator 35, an auxiliary change-over switch 36, a switching-off spring 37 and a connecting sheet 38 fixed at the top of the case 1, wherein a spring is arranged in the transmission connecting rod 32, the switching-on and switching-off indicator 35 is movably connected with a switching-on and switching-off counter 351, an L-shaped crank arm 311, a first pushing arm 312, a second pushing arm 313 and a third pushing arm 314 are connected on the transmission shaft 31, one end of the switching-off spring 37 is connected with one end of the L-shaped crank arm 311, the other end of the switching-off spring 37 is connected with the connecting sheet 38, the other end of the L-shaped crank arm 311 is connected with the transmission connecting rod 32, the first push arm 312 is connected with the auxiliary transfer switch 36 through a third connecting rod 3121, the second push arm 313 is connected with the universal shaft connecting rod 7, the transmission connecting rod 32 is connected with an insulation pull rod 321, the insulation pull rod 321 is connected with a moving contact 322, the moving contact 322 is arranged in the vacuum switch tube 33, a fixed contact 331 is arranged in the vacuum switch tube 33, the moving contact 322 is movably contacted with the fixed contact 331, the switching-on and switching-off indicator 35 and the buffer mechanism 34 are respectively connected with the third push arm 314, a chute 241 and a ninth rotating shaft 900 are fixed on the support steel plate 4, the ninth rotating shaft 900 is connected with a third sprocket 901, the energy storage spring 24 is arranged in the chute 241, one end of the energy storage spring 24 is connected with a baffle 242, the baffle 242 is connected with a second chain 62, the second chain 62 bypasses the third sprocket 901 and is connected with the fourth link 802, the second chain 62 is movably connected with the third sprocket 901, the spring operating mechanism 2 further comprises a brake release mechanism 8, the brake release mechanism 8 comprises a tenth rotating shaft 81, an eleventh rotating shaft 82, a closing and opening handle 83 and a brake release electromagnet 84 which are arranged on the supporting steel plate 4, the tenth rotating shaft 81 is connected with a brake release pawl 85, the brake release pawl 85 is provided with a hook head 851, the brake release pawl 85 is connected with a torsion spring, the brake release pawl 85 is movably contacted with the third auxiliary roller 512, the eleventh rotating shaft 82 is connected with a brake release 86, one end of the brake release 86 is connected with the brake release electromagnet 84, the brake release 86 other end is equipped with fourth auxiliary roller 861, fourth auxiliary roller 861 with gib head 851 movable contact, brake release 86 is equipped with second auxiliary protrusion 862, close and divide handle 83 to be connected with and close pole 831, branch pole 832 with second auxiliary protrusion 862 movable contact, the brake release 601 other end is equipped with the supplementary arch 6012 of third, the supplementary arch 6012 of third with close pole 831 movable contact, the sincere 501 lower extreme of closing is equipped with dodges the breach, driven turning arm 51 is equipped with fifth auxiliary roller 513, fifth auxiliary roller 513 with dodge breach movable contact, first pivot 100 passes protection steel sheet 41 is connected with energy storage pivot 9, eighth pivot 800 is equipped with energy storage instruction pointer.

Working principle: in the process of energy storage and automatic energy storage, the driving motor 21 drives the first sprocket 701 to rotate anticlockwise, the first sprocket 701 drives the second sprocket 101 to rotate anticlockwise through the first chain 61 to drive the first rotating shaft 100 to rotate, in the case of manual energy storage, the energy storage rotating shaft 9 is rotated anticlockwise to drive the first rotating shaft 100 to rotate, then the first gear 102 is driven to rotate anticlockwise, the first gear 102 drives the second gear 301 and the third gear 302 to rotate anticlockwise, the third gear 302 drives the fourth gear 401 to rotate anticlockwise to drive the driving crank arm 402 and the auxiliary crank arm 403 to rotate anticlockwise, the auxiliary crank arm 403 pulls the second chain 62 to store energy in the energy storage spring 24, when the first auxiliary protrusion 4031 contacts and pushes the first auxiliary roller 2011, the energy storage switch crank arm 201 rotates clockwise to turn on the energy storage travel switch 22, the energy storage travel switch 22 stops the driving motor 21, meanwhile, the energy storage clutch 23 is driven by the first connecting rod 231, the second sprocket 101 is separated from the linkage state with the first rotating shaft 100, the energy storage motion is mechanically disconnected, at this time, the first roller 4021 contacts the closing pawl 501, at this time, the operating device has a trend of moving towards the closing direction under the action of the force of the energy storage spring, but the motion position is limited, and the energy storage state is maintained;

in the automatic closing process, under the condition of automatic closing, the closing electromagnet 602 pushes the closing release 601 to rotate anticlockwise, under the condition of manual closing, the closing lever 831 pushes the third auxiliary protrusion 6012 to push the closing release 601 to rotate anticlockwise, then the closing pawl 501 loses the support of the closing release 601, the closing pawl 501 rotates anticlockwise under the action of the contact pressure of the first roller 4021 on the driving crank 402, the first roller 4021 is not limited, under the action of the energy storage spring 24, the auxiliary crank 403 rotates anticlockwise, the driving crank 402 is driven to rotate anticlockwise by the first spline shaft 400, at this time, the closing pawl 501 is driven by the torsion spring to rotate clockwise to restore to the original position, the driving crank 402 rotates anticlockwise to contact the second auxiliary roller 511 on the driven crank arm 51, then the driven crank arm 51 rotates clockwise with the closing push arm 52, the driving push arm 52 pushes the universal shaft 7 to move the universal crank arm 321, the second crank arm 321 rotates clockwise to push the driven crank arm 311 to move the first crank arm 311 to the transmission shaft 311, the insulating link 322 moves clockwise, the insulating link 322 moves the insulating link 322, and the insulating link 322 moves clockwise, and the insulating link 322 moves the insulating link 322 is driven to rotate clockwise, and the insulating link 322 is driven to rotate the insulating link 322, and the insulating link is driven to rotate clockwise, and the insulating link is driven to rotate the insulating link and the insulating link 322, and the insulating link is driven to rotate the insulating link and the insulating link. The spring compression in the transmission link 32 provides contact pressure for the moving contact 322, the third push arm 314 pushes the switching-on and switching-off indicator 35 to perform switching-on state indication, the switching-on and switching-off indicator 35 pushes the switching-on and switching-off counter 351 to count, the first push arm 312 drives the auxiliary transfer switch 36 to transfer switching-on and switching-off auxiliary contacts through the third link 3121, meanwhile, the third auxiliary roller 512 rotates anticlockwise above the hook head 851, at this time, under the action of the spring force in the transmission link 32 and the switching-off spring 37, the operating device has a tendency to move towards switching-off, but due to the limited movement position, the switching-on state is kept, at the same time, the first auxiliary protrusion 4031 on the auxiliary crank arm 403 is separated from the first auxiliary roller 2011, the energy storage travel switch 22 is reset, the driving motor 21 is turned on, the energy storage switch arm 201 rotates anticlockwise, the energy storage clutch 23 is reset, the second sprocket 101 and the first rotating shaft 100 are in a linkage state again, and the operating device can start to store energy;

in the process of opening the brake, under the condition of automatic opening, the opening electromagnet 84 drives the opening release 86 to rotate clockwise, under the condition of manual opening, the opening release handle 83 is twisted, the opening lever 832 pushes the second auxiliary protrusion 862 to move so as to drive the opening release 86 to rotate clockwise, then the fourth auxiliary roller 861 is separated from the hook head 851, the opening latch 85 rotates anticlockwise under the action of the contact pressure of the third auxiliary roller 512 on the driven crank arm 51, the position of the third auxiliary roller 512 is not limited any more, the closing state is not maintained any more, at this time, the opening spring 37 and the spring release energy in the transmission link 32 drive the L-shaped crank arm 311 to rotate anticlockwise so as to drive the transmission shaft 31 to rotate anticlockwise, the transmission shaft 31 drives the first push arm 312, the second push arm 313 and the third push arm 314 to rotate anticlockwise, the L-shaped crank arm 311 drives the transmission connecting rod 32 to drive the insulation pull rod 321 to move, the insulation pull rod 321 drives the moving contact 322 to separate from the fixed contact 331 to complete the brake separating action, the third push arm 314 pushes the brake separating indicator 35 to perform brake separating state indication, meanwhile, the third push arm 312 contacts with the buffering device 34 to buffer brake separating energy, impact on the device is reduced, the first push arm 312 drives the auxiliary transfer switch 36 to perform the transfer of the auxiliary contact of the brake separating, meanwhile, the second push arm 313 drives the universal shaft connecting rod 7 to move downwards, and the universal shaft connecting rod 7 drives the driven crank arm 51 to rotate anticlockwise with the brake closing push arm 52 to reset to a brake separating position to complete brake separating action.

Furthermore, the above embodiments are only for illustrating the present invention, not for limiting the present invention, and other changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present invention, and therefore, all equivalent technical solutions are also within the scope of the present invention, which is defined by the claims. In addition, if specific terms are used in the present specification, they are used for convenience of description only and are not limiting of the present invention.

Claims

1. The utility model provides an automatic and manual dual-purpose safe controlling means of circuit breaker, includes quick-witted case (1), locates spring operating mechanism (2), the switching-on and switching-off control mechanism (3) in machine case (1), its characterized in that: the switching-on and switching-off control mechanism (3) is arranged above the spring operating mechanism (2);

the spring operating mechanism (2) comprises a supporting steel plate (4), a protective steel plate (41), a driving motor (21) arranged on the supporting steel plate (4), an energy storage travel switch (22), an energy storage clutch (23), an energy storage spring (24), a first rotating shaft (100), a second rotating shaft (200), a third rotating shaft (300), a first spline shaft (400), a fifth rotating shaft (500), a sixth rotating shaft (600), a second spline shaft (5) and an eighth rotating shaft (800) arranged on the protective steel plate (41), wherein the energy storage clutch (23) is sleeved on the first rotating shaft (100), the center line of the first spline shaft (400) coincides with the center line of the eighth rotating shaft (800), the output shaft of the driving motor (21) is connected with a seventh rotating shaft (700), the seventh rotating shaft (700) is connected with a first sprocket (701), the first rotating shaft (100) is connected with a second sprocket (101), a first gear (102), the second sprocket (101) is connected with the energy storage clutch (23), the first sprocket (101) is connected with a second sprocket (101) through a chain (201), the energy storage switch crank arm (201) is connected with a first auxiliary roller (2011), one end of the energy storage switch crank arm (201) is connected with the energy storage travel switch (22), the other end of the energy storage switch crank arm (201) is connected with the energy storage clutch (23) through a first connecting rod (231), the third rotating shaft (300) is connected with a second gear (301) and a third gear (302), the second gear (301) is meshed with the first gear (102), the first spline shaft (400) is sleeved with a fourth gear (401), a driving crank arm (402) and an auxiliary crank arm (403) through a one-way bearing, the fourth gear (401) is meshed with the third gear (302), the driving crank arm (402) is provided with a first roller (4021), the eighth rotating shaft (800) is connected with a second connecting rod (801) through a pin shaft, one side of the auxiliary crank arm (403) is connected with one end of the second connecting rod (801) through a pin shaft, the auxiliary crank arm (403) is provided with a fourth connecting rod (802), the other side of the auxiliary crank arm (403) is provided with a first auxiliary crank arm (402) is sleeved with a first torsion spring (501), the other side of the auxiliary crank arm (403) is connected with a fifth torsion spring (501) is connected with the auxiliary roller (501), the six rotating shaft (600) is connected with a closing release (601), the closing release (601) is connected with a torsion spring, the closing release (601) is connected with a closing electromagnet (602), one end of the closing release (601) is connected with a second roller (6011), one end of a closing pawl (501) is in movable contact with a first roller (4021), the other end of the closing pawl (501) is in movable contact with the second roller (6011), a driven crank arm (51) and a closing push arm (52) are sleeved on a second spline shaft (5), one end of the driven crank arm (51) is connected with a second auxiliary roller (511), the other end of the driven crank arm (51) is connected with a third auxiliary roller (512), the closing push arm (52) is connected with a universal shaft connecting rod (7) through a pin shaft, and the spring operating mechanism (2) is connected with a closing and separating brake control mechanism (3) through the universal shaft connecting rod (7).

2. The automatic and manual dual-purpose safety operating device for a circuit breaker according to claim 1, wherein: the switching-on and switching-off control mechanism (3) comprises a transmission shaft (31), a transmission connecting rod (32), a vacuum switch tube (33), a buffer mechanism (34), a switching-on and switching-off indicator (35), an auxiliary change-over switch (36), a switching-off spring (37) and a connecting sheet (38) fixed at the top of the chassis (1), wherein a spring is arranged in the transmission connecting rod (32), the switching-on and switching-off indicator (35) is movably connected with a switching-on and switching-off counter (351), an L-shaped crank arm (311), a first pushing arm (312), a second pushing arm (313) and a third pushing arm (314) are connected on the transmission shaft (31), one end of the switching-off spring (37) is connected with one end of the L-shaped crank arm (311), the other end of the switching-off spring (37) is connected with the connecting sheet (38), the other end of the L-shaped crank arm (311) is connected with the transmission connecting rod (32), the first pushing arm (312) is connected with the auxiliary change-off counter (36) through the third connecting rod (3121), the second pushing arm (321) is connected with the universal contact (322) and the insulating contact (33) is connected with the vacuum switch (33), the vacuum switch tube (33) is internally provided with a fixed contact (331), the movable contact (322) is in movable contact with the fixed contact (331), and the switching-on and switching-off indicator (35) and the buffer mechanism (34) are respectively connected with the third pushing arm (314).

3. The automatic and manual dual-purpose safety operating device for a circuit breaker according to claim 1, wherein: the novel energy storage device is characterized in that a sliding groove (241) and a ninth rotating shaft (900) are fixed on the supporting steel plate (4), the ninth rotating shaft (900) is connected with a third sprocket (901), an energy storage spring (24) is arranged in the sliding groove (241), one end of the energy storage spring (24) is connected with a baffle plate (242), the baffle plate (242) is connected with a second chain (62), the second chain (62) bypasses the third sprocket (901) and is connected with a fourth connecting rod (802), and the second chain (62) is movably connected with the third sprocket (901).

4. The automatic and manual dual-purpose safety operating device for a circuit breaker according to claim 1, wherein: the spring operating mechanism (2) further comprises a brake separating mechanism (8), the brake separating mechanism (8) comprises a tenth rotating shaft (81), an eleventh rotating shaft (82), a brake separating handle (83) and a brake separating electromagnet (84) which are arranged on the supporting steel plate (4), the tenth rotating shaft (81) is connected with a brake separating pawl (85), the brake separating pawl (85) is provided with a hook head (851), the brake separating pawl (85) is connected with a torsion spring, the brake separating pawl (85) is in movable contact with a third auxiliary roller (512), the eleventh rotating shaft (82) is connected with a brake separating release (86), one end of the brake separating release (86) is connected with the brake separating electromagnet (84), the other end of the brake separating release (86) is provided with a fourth auxiliary roller (861), the brake separating release (86) is provided with a second auxiliary boss (862), the brake separating lever (83) is connected with a brake separating lever (832), and the brake separating lever (832) is connected with the second auxiliary boss (862).

5. The automatic and manual dual-purpose safety operating device for a circuit breaker according to claim 4, wherein: the other end of the closing release (601) is provided with a third auxiliary protrusion (6012), and the third auxiliary protrusion (6012) is in movable contact with the closing rod (831).

6. The automatic and manual dual-purpose safety operating device for a circuit breaker according to claim 1, wherein: the automatic switching-on device is characterized in that an avoidance gap is formed in the lower end of the switching-on pawl (501), a fifth auxiliary roller (513) is arranged on the driven crank arm (51), and the fifth auxiliary roller (513) is in movable contact with the avoidance gap.

7. The automatic and manual dual-purpose safety operating device for a circuit breaker according to claim 1, wherein: the first rotating shaft (100) penetrates through the protection steel plate (41) to be connected with an energy storage rotating shaft (9), and the eighth rotating shaft (800) is provided with an energy storage indicating pointer.