CN207602495U - A kind of transmission mechanism of the automatic switching off/on device of breaker - Google Patents

Abstract

The utility model discloses a kind of transmission mechanisms of the automatic switching off/on device of breaker,Including housing,Circuit board is further included,Transmission shaft,Dropout interlocking bar,Motor and transmission component,Circuit board and motor are fixed in housing,Transmission shaft and dropout interlocking bar are rotatably arranged on housing,Transmission component includes offset gear and transmission gear,Transmission gear is set with transmission shaft linkage,The linkage setting of the output shaft of offset gear and motor,Offset gear includes gear wheel and sector gear,Sector gear is arranged on gear wheel side and fixes or be wholely set with gear wheel,Sector gear can be engaged with transmission gear,Limiting slot is provided on housing,Abutting portion is provided on one end of dropout interlocking bar,Swing arm is provided on the other end,Swing arm is threaded through on limiting slot,Sector gear turns to contradict with the abutting portion of dropout interlocking bar drives dropout interlocking bar to rotate when coordinating.Said program overcomes the shortcomings of the prior art, can control the automatic divide-shut brake of breaker, stable transmission.

Description

A kind of transmission mechanism of the automatic switching off/on device of breaker

Technical field

The utility model is related to field of circuit breakers, the transmission mechanism of especially a kind of automatic switching off/on device of breaker.

Background technology

Miniature circuit breaker, residual current action breaker are widely used in family, office building, market, communication base station, traffic Signaling point, rural area open air distribution, take the terminal power distribution of the effects that control electric energy meter external breaker.Every layer of office building is equipped with more The distribution box of a MCB, RCBO, the interior electrical equipment that each region is controlled equipped with multiple MCB, RCBO of each distribution box.For U.S. It sees, general distribution box setting all can be more hidden.Communication base station is often established in some unattended regions, while is also ring The more severe region in border；Traffic signals point is widely distributed, apart from each other between each point；It is currently used in the market to take control electric energy Off-balancesheet puts breaker and there was only remote control arrearage automatic brake separating function, does not have remote control automatic switching-in function；As user occurs Arrearage, electric energy meter provide trip signal, breaker automatic brake separating；If but user continue to pay dues after need to send special messenger to go to open distribution box Lead sealing, then closing by hand, maintenance cost are higher；In addition, take the control external breaker of electric energy meter existing, it is automatic providing There is no the function that closing by hand and separating brake are provided simultaneously while combined floodgate or separating brake function.If there is component damage, open circuit The situation that device can not work normally brings big inconvenience to user.And the expense control electric energy meter for being not provided with manual function is external Breaker when needing to overhaul circuit, can not ensure that remote control terminal carries out breaker correct automatic closing, and when maintenance holds Easily cause electric shock accidents.

General breaker includes housing, buckle releaser, arc-control device, static contact, moving contact, handle mechanism and terminals Son, handle mechanism include handle, tripping, moving contact rack, lock, latch spring and tension spring, and moving contact is fixed at dynamic touch On head bracket, long through-hole is provided on moving contact rack, axis pin is provided in long through-hole, the both ends of the axis pin are arranged on housing On, tension spring one end is connected on moving contact rack, and is located at the top of long through-hole with the tie point of moving contact rack, tension spring it is another One end is fixedly connected on housing, and tripping is hingedly arranged on the upper end of moving contact rack, is connected between tripping and handle by first Bar connects, and lock middle part is movably set in by the through-hole of setting on axis pin, and lock top, which is extended with to contradict with tripping, to be coordinated The conflict foot of tripping rotation is limited, lock lower section, which is equipped with, pushes foot, wherein the push rod of foot and buckle releaser is pushed to be correspondingly arranged, push rod It can push and foot rotation is pushed to be rotated so as to fulfill lock, lock rotation unlocks tripping and the conflict contradicted between foot, at this moment moves Breaker open operation can be achieved in contact supporting under the action of tension spring, and latch spring gives lock and keeps the driving contradicted with tripping Power, and promotion foot is made to be rotated to the push rod side of buckle releaser, in order to enable breaker automatic closing or separating brake, need to pass through control Divide-shut brake can be achieved in the rotation of handle processed and the rotation of lock, the rotation of handle, and the conflict that lock is detached from tripping can be achieved Automatic brake separating.

Utility model content

The utility model overcomes the deficiencies in the prior art, provides a kind of driver of the automatic switching off/on device of breaker Structure can control the automatic divide-shut brake of breaker, stable transmission.

To achieve these goals, the technical solution adopted in the utility model is：A kind of automatic switching off/on device of breaker Transmission mechanism, including housing, further included circuit board, transmission shaft, dropout interlocking bar, motor and transmission component, circuit board and Motor is fixed in housing, and transmission shaft and dropout interlocking bar are rotatably arranged on housing, and motor is realized by transmission component Transmission shaft and dropout interlocking bar are respectively driven, the transmission component include offset gear and transmission gear, transmission gear with The output shaft linkage of transmission shaft linkage setting, offset gear and motor is set, and the offset gear includes gear wheel and sector Wheel, sector gear are arranged on gear wheel side and fix or be wholely set with gear wheel, and sector gear can be engaged with transmission gear Band nutating gear rotates, and is provided with limiting slot on the housing, is provided with abutting portion on one end of the dropout interlocking bar, separately Swing arm is provided on one end, swing arm is threaded through on limiting slot, and sector gear, which turns to contradict with the abutting portion of dropout interlocking bar, matches The rotation of dropout interlocking bar is driven during conjunction, swing arm at this time rotates in limiting slot.

By using said program, motor and circuit board electrical connection, motor can drive offset gear to rotate, on offset gear Sector gear fix or be integrally disposed upon the side of gear wheel, the gear wheel of offset gear will not be meshed with transmission gear, When circuit is received by separating brake to reclosing command, motor driving offset gear rotation, it is neutral gear that offset gear, which has 4/5ths circles, The sector gear of offset gear is engaged with transmission gear, and transmission gear just starts to rotate, so as to which transmission shaft be driven to rotate, transmission shaft One end stretch out housing and couple with the handle of external breaker, so as to drive the progress automatic closing operation of external breaker, completion Motor stops operating after closing operation；When circuit, which is received, to be instructed by closing a floodgate to separating brake, motor driving offset gear rotation, dislocation Gear turns to sector gear thereon and the abutting portion of dropout interlocking bar is inconsistent, and limiting slot is stretched out in the swing arm of dropout interlocking bar And link with the lock of external breaker, swing arm can only rotate in certain angular range, and in original state, swing arm contradicts In the lower wall of limiting slot, the sector gear of offset gear drives the rotation of dropout interlocking bar, and swing arm is rotated up along limiting slot And the lock that can stir external breaker makes external breaker quick acting switching-off, motor stops operating after completing sub-switching operation, is dividing Under lock state, motor stops operating, and offset gear is in self-locking state, and swing arm is contradicted always on the upper side wall of limiting slot, no It can reset the lock of external breaker, the lock of breaker does not contradict with tripping, it is impossible to carry out closing by hand operation, transmission is steady It is fixed.

The further setting of the utility model is：The transmission component has further included worm screw, worm gear and reduction gearing, described Worm screw fixes or is integrally disposed upon on the output shaft of motor, and worm gear and reduction gearing are rotatably arranged in housing, worm gear and worm screw Intermeshing, the worm gear are equipped with the first gear being meshed with reduction gearing, and the reduction gearing is equipped with and offset teeth The second gear that the gear wheel of wheel is meshed.

By using said program, the output shaft linkage setting of worm screw and motor, first gear is fixed with worm gear or one Setting, and worm gear is set with first gear into big pinion gear, second gear is fixed or is wholely set with reduction gearing, and reducing gear Wheel is set with second gear into big pinion gear, and worm drive worm gear realizes that the first order is slowed down, and first gear driving reduction gearing is real The existing second level is slowed down, and second gear driving offset gear realizes that the third level is slowed down.

The further setting of the utility model is：The dropout interlocking bar further includes articulated section and link rod part, described hinged Portion is rotatably arranged on housing and is vertically set on the medium position of link rod part, and the abutting portion is fixed or is wholely set with swing arm At the both ends of link rod part, into hook-shaped setting, abutting portion is equipped with the inclined-plane that cooperation is contradicted with sector gear, described for the abutting portion Swing arm is perpendicular to the end face of link rod part.

By using said program, the articulated section of dropout interlocking bar is rotatably arranged on by axis on housing, articulated section setting In the medium position of link rod part, abutting portion is arranged on the both ends of link rod part, effectively more high-torque with swing arm, and required driving, which is threaded off, to be joined The power smaller of lever, transmission is more stablized, when the sector gear of offset gear, which is turned to, to be contradicted with the inclined-plane of abutting portion, first Under beginning state, the lower wall of swing arm and limiting slot is inconsistent, therefore swing arm can only be moved up along limiting slot, and limiting is stretched out in swing arm Slot simultaneously links with the lock of external breaker, and lock can be driven to be detached from the conflict with tripping, realize quick sub-switching operation, inclined-plane The direction rotated to sector gear tilts, and will not block sector gear in this way, and inclined-plane again will not while conflict with sector gear Sector gear is influenced normally to rotate.

The further setting of the utility model is：The transmission gear includes newel and fan-shaped engaging section, the center Column is rotatably arranged on housing, the rectangular setting in section of the transmission shaft, offers to pass on the end face of the newel The rectangular channel of moving axis grafting.

By using said program, the newel of transmission gear is rotatably arranged on housing, is fixed or is wholely set thereon There is fan-shaped engaging section, the rectangular channel in four directions is offered on the end face of newel, transmission shaft can be inserted into rectangular channel, realize driving cog The linkage of wheel and transmission shaft, connection structure is simple, stable transmission.

The further setting of the utility model is：The circuit board is equipped with location hole, and the housing is corresponded at location hole Equipped with the positioning column mating with location hole, the housing is additionally provided with the support of sustainable circuit board in one side of positioning column Plate.

By using said program, the positioning peace of the mating achievable circuit board and housing of location hole and positioning column It fills, support plate is extended on positioning column, the end face of the support plate is less than the end face of positioning column, can play a supporting role, convenient for electricity Road plate installation.

The further setting of the utility model is：The worm gear is rotatably arranged on by first axle on housing, the electricity Road plate is equipped with the first hole passed through for first axle, and the reduction gearing is rotatably arranged on by the second axis on housing, the electricity Road plate is equipped with the second hole passed through for the second axis, and the offset gear is rotatably arranged on by third axis on housing, the electricity Road plate is equipped with the third hole passed through for third axis, and the dropout interlocking bar is rotatably arranged on by the 4th axis on housing, circuit Plate is equipped with the 4th hole passed through for the 4th axis, the circuit board be equipped with the first opening of limiting slot shape adaptation and with Second opening of motor form adaptation.

By using said program, worm screw, worm gear, reduction gearing, offset gear and transmission gear are all located at circuit board The same side, first axle, the second axis, third axis and the 4th axis are respectively from the first hole of circuit board, the second hole, third hole and the 4th hole Place is across worm gear is rotatably arranged in first axle, and reduction gearing is rotatably arranged on the second axis, and offset gear is rotatably arranged on On three axis, dropout interlocking bar is rotatably arranged on the 4th axis, and the first opening and the shape adaptation of limiting slot on circuit board avoid The rotation of dropout interlocking bar is interfered, the second opening and the shape adaptation of motor on circuit board are avoided contacting with motor, more be pacified Entirely, each component being reasonably distributed in housing, structure is compacter.

The further setting of the utility model is：The section of the output shaft of the motor is set into sector, the worm screw It is equipped with the fan groove of the output shaft grafting for motor.

By using said program, motor is fixed in the housing, and the fan-shaped output shaft of fan groove and motor on worm screw is inserted Cooperation is connect, is fixed on worm screw on the output shaft of motor and concentric with the output shaft of motor, the worm screw when output shaft of motor rotates Rotation with one heart together, connection structure is simple, stable transmission.

The utility model is further described below in conjunction with the accompanying drawings.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the internal structure schematic diagram of the utility model embodiment；

Fig. 3 is the structure diagram that the utility model embodiment removes circuit board；

Fig. 4 is the structure diagram by closing a floodgate under gate-dividing state in the utility model embodiment；

Fig. 5 is the structure diagram under gate-dividing state in the utility model embodiment；

Fig. 6 is to enter the structure diagram under "on" position by separating brake in the utility model embodiment；

Fig. 7 is the structure diagram under "on" position in the utility model embodiment；

Fig. 8 is motor and the fit structure schematic diagram of worm screw in the utility model embodiment；

Fig. 9 is the structure diagram of worm gear in the utility model embodiment；

Figure 10 is the structure diagram of reduction gearing in the utility model embodiment；

Figure 11 is the structure diagram of transmission gear in the utility model embodiment；

Figure 12 is the structure diagram of offset gear in the utility model embodiment；

Figure 13 is the structure diagram of dropout interlocking bar in the utility model embodiment；

Figure 14 is the structure diagram of circuit board in the utility model embodiment.

Specific embodiment

As shown in Fig. 1-Figure 14, a kind of transmission mechanism of the automatic switching off/on device of breaker including housing 1, has further included Circuit board 2, transmission shaft 3, dropout interlocking bar 4, motor 5 and transmission component, circuit board 2 and motor 5 are fixed in housing 1, Motor 5 is electrically connected with circuit board 2, and transmission shaft 3 and dropout interlocking bar 4 are rotatably arranged on housing 1, and one end of transmission shaft 3 is stretched out Housing 1 couples with the handle of external breaker, and motor 5 realizes the difference to transmission shaft 3 and dropout interlocking bar 4 by transmission component Driving, transmission component include offset gear 61 and transmission gear 62, and transmission gear 62 includes newel 621 and fan-shaped engaging section 622, newel 621 is rotatably arranged on housing 1, the rectangular setting in section of transmission shaft 3, is opened up on the end face of newel 621 Some rectangular channels 6211, transmission shaft 3, which is plugged in rectangular channel 6211, realizes that transmission shaft 3 is set with the linkage of transmission gear 62, dislocation Gear 61 and the linkage of output shaft 51 of motor 5 are set, and offset gear 61 includes gear wheel 611 and sector gear 612, sector gear 612 are arranged on 611 side of gear wheel and are wholely set with gear wheel 611, and gear wheel 611 and sector gear 612 can also pass through The structure of spline and keyway is connected with each other, and sector gear 612 can engage drive transmission with the fan-shaped engaging section 622 of transmission gear 62 Gear 62 rotates, and limiting slot 11 is provided on housing 1, and abutting portion 41 is provided on one end of dropout interlocking bar 4, is set on the other end Swing arm 42 is equipped with, swing arm 42 is threaded through on limiting slot 11, and swing arm 42 stretches out limiting slot 11 and links with the lock of external breaker, Sector gear 612 turns to contradict with the abutting portion of dropout interlocking bar 4 41 drives dropout interlocking bar 4 to rotate when coordinating, and puts at this time Arm 42 rotates in limiting slot 11.

In the present embodiment, transmission component has further included worm screw 63, worm gear 64 and reduction gearing 65, the output shaft of motor 5 51 section is set into sector, and worm screw 63 is equipped with the fan groove 631 of 51 grafting of output shaft for motor 5, the output of motor 5 Axis 51 is inserted into fan groove 631, and the structure of shaft coupling can also be used to connect, realize the installation of worm screw 63,64 He of worm gear Reduction gearing 65 is rotatably arranged in housing 1, and worm gear 64 is intermeshed with worm screw 63, has been wholely set on worm gear 64 and reducing gear The first gear 66 that wheel 65 is meshed, worm gear 64 can also be connected with each other with first gear 66 by the structure of spline and keyway, Be wholely set the second gear 67 being meshed with the gear wheel of offset gear 61 611 in reduction gearing 65, reduction gearing 65 with Second gear 67 can also be connected with each other by the structure of spline and keyway, and worm gear 64 is set with first gear 66 into big pinion gear It puts, reduction gearing 65 is set with second gear 67 into big pinion gear, and worm screw 63 drives worm gear 64 to realize that the first order is slowed down, the first tooth 66 driving reduction gearing 65 of wheel realizes that the second level is slowed down, and second gear 67 drives offset gear 61 to realize that the third level is slowed down, and passes through Operation is easier to control after deceleration, it is also feasible, but be not best that certain worm gear 64, which directly drives the rotation of offset gear 61, Scheme.Tooth can also be fixed or be wholely set to the kind of drive of worm gear 64 and worm screw 63 by directly on the output shaft 51 of motor 5 Wheel, is substituted by way of being driven between gear and gear.

In the present embodiment, dropout interlocking bar 4 further includes articulated section 43 and link rod part 44, and articulated section 43 is rotatably arranged on shell On body 1 and the medium position of link rod part 44 is vertically set on, link rod part 44 is fixed or be integrally disposed upon in abutting portion 41 with swing arm 42 Both ends, into hook-shaped setting, abutting portion 41 is equipped with the inclined-plane 411 that cooperation is contradicted with sector gear 612, swing arm 42 for abutting portion 41 Perpendicular to the end face of link rod part 44.

In the present embodiment, circuit board 2 is equipped with location hole 21, and housing 1 is corresponded to and is equipped with and location hole 21 at location hole 21 Mating positioning column 12, housing 1 are additionally provided with the support plate 13 of sustainable circuit board 2, worm gear 64 in one side of positioning column 12 It is rotatably arranged on housing 1 by first axle 71, circuit board 2 is equipped with the first hole 22 passed through for first axle 71, reduction gearing 65 are rotatably arranged on by the second axis 72 on housing 1, and circuit board 2 is equipped with the second hole 23 passed through for the second axis 72, offset teeth Wheel 61 is rotatably arranged on by third axis 73 on housing 1, and circuit board 2 is equipped with the third hole 24 passed through for third axis 73, is threaded off Interlocking bar 4 is rotatably arranged on by the 4th axis 74 on housing 1, and circuit board 2 is equipped with the 4th hole 25 passed through for the 4th axis 74, electricity Road plate 2 is equipped with the second opening 27 with the first opening 26 of 11 shape adaptation of limiting slot and with 5 shape adaptation of motor, housing 1 is equipped with the mounting groove 14 installed for motor 5, and housing 1 is equipped with the mounting base 15 installed for worm screw 63.

One kind of above example, only the utility model preferably specific embodiment, those skilled in the art are in this reality It is included in the scope of protection of the utility model with the usual variations and alternatives carried out in new technique aspects.

Claims (7)

1. a kind of transmission mechanism of the automatic switching off/on device of breaker, including housing, it is characterised in that：Further included circuit board, Transmission shaft, dropout interlocking bar, motor and transmission component, circuit board and motor are fixed in housing, transmission shaft and connection of threading off Lever is rotatably arranged on housing, and motor respectively drives transmission shaft and dropout interlocking bar by transmission component realization, described Transmission component includes offset gear and transmission gear, and transmission gear is set with transmission shaft linkage, the output of offset gear and motor Axis linkage setting, the offset gear include gear wheel and sector gear, and sector gear is arranged on gear wheel side and and canine tooth Wheel is fixed or is wholely set, and sector gear can engage band nutating gear with transmission gear and rotate, and be set on the housing limited Position slot, is provided with abutting portion on one end of the dropout interlocking bar, swing arm is provided on the other end, swing arm is threaded through limiting slot On, sector gear turns to contradict with the abutting portion of dropout interlocking bar drives dropout interlocking bar to rotate when coordinating, and swing arm at this time exists It is rotated in limiting slot.

2. a kind of transmission mechanism of the automatic switching off/on device of breaker according to claim 1, it is characterised in that：The biography Dynamic component has further included worm screw, worm gear and reduction gearing, and the worm screw fixes or is integrally disposed upon on the output shaft of motor, worm gear It is rotatably arranged in housing with reduction gearing, worm gear is intermeshed with worm screw, and the worm gear is equipped with and is meshed with reduction gearing First gear, the reduction gearing is equipped with the second gear that is meshed with the gear wheel of offset gear.

3. a kind of transmission mechanism of the automatic switching off/on device of breaker according to claim 1 or 2, it is characterised in that：Institute It states dropout interlocking bar and further includes articulated section and link rod part, the articulated section is rotatably arranged on housing and is vertically set on link rod part Medium position, the abutting portion and swing arm fix or be integrally disposed upon the both ends of link rod part, the abutting portion into hook-shaped setting, Abutting portion is equipped with the inclined-plane that cooperation is contradicted with sector gear, and the swing arm is perpendicular to the end face of link rod part.

4. a kind of transmission mechanism of the automatic switching off/on device of breaker according to claim 1 or 2, it is characterised in that：Institute It states transmission gear and includes newel and fan-shaped engaging section, the newel is rotatably arranged on housing, the section of the transmission shaft Rectangular setting offers the rectangular channel for transmission shaft grafting on the end face of the newel.

5. a kind of transmission mechanism of the automatic switching off/on device of breaker according to claim 1 or 2, it is characterised in that：Institute Circuit board is stated equipped with location hole, the housing, which corresponds to, is equipped with the positioning column mating with location hole, the shell at location hole Body is additionally provided with the support plate of sustainable circuit board in one side of positioning column.

6. a kind of transmission mechanism of the automatic switching off/on device of breaker according to claim 2, it is characterised in that：The snail Wheel is rotatably arranged on by first axle on housing, and the circuit board is equipped with the first hole passed through for first axle, the reducing gear Wheel is rotatably arranged on by the second axis on housing, and the circuit board is equipped with the second hole passed through for the second axis, the offset teeth Wheel is rotatably arranged on by third axis on housing, and the circuit board is equipped with the third hole passed through for third axis, the connection of threading off Lever is rotatably arranged on by the 4th axis on housing, and circuit board is equipped with the 4th hole passed through for the 4th axis, on the circuit board Equipped with the second opening for being open with the first of limiting slot shape adaptation and being adapted to motor form.

7. a kind of transmission mechanism of the automatic switching off/on device of breaker according to claim 2 or 6, it is characterised in that：Institute The section for stating the output shaft of motor is set into sector, and the worm screw is equipped with the fan groove of the output shaft grafting for motor.