CN102820162B - Double-acting high-voltage sulfur hexafluoride circuit breaker and double-acting transmission device thereof - Google Patents

Double-acting high-voltage sulfur hexafluoride circuit breaker and double-acting transmission device thereof Download PDF

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Publication number
CN102820162B
CN102820162B CN201210287952.7A CN201210287952A CN102820162B CN 102820162 B CN102820162 B CN 102820162B CN 201210287952 A CN201210287952 A CN 201210287952A CN 102820162 B CN102820162 B CN 102820162B
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China
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tooth bar
arc contact
rib
static arc
static
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CN201210287952.7A
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CN102820162A (en
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林麟
杜迎乾
李永林
郭学凤
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State Grid Corp of China SGCC
State Grid Shanxi Electric Power Co Ltd
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
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State Grid Corp of China SGCC
State Grid Shanxi Electric Power Co Ltd
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
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Abstract

The invention relates to a double-acting high-voltage sulfur hexafluoride circuit breaker. A double-acting transmission device is arranged between a moving contact assembly and a fixed arc contact. The double-acting transmission device comprises a driving gear rack and a fixed arc contact gear rack which are arranged in parallel and extend along the moving direction of the moving contact assembly. A gear which is simultaneously engaged with the two gear racks in a driving way is arranged between the driving gear rack and the fixed arc contact gear rack. A rib which is in parallel with the driving gear rack is arranged on one side of the back surface of the fixed arc contact gear rack. A roller which is simultaneously in rolling fit with the rib and the back surface of the fixed arc contact gear rack is arranged between the rib and the fixed arc contact gear rack. The lower end parts of the driving gear rack and the rib are fixedly connected onto the moving contact assembly and linearly move back and forth with the moving contact assembly. The driving gear rack is connected with the rib through a linkage plate. The driving gear rack drives the fixed arc contact gear rack to reversely move through the gear. The fixed arc contact gear rack is fixedly connected onto a fixed arc contact to drive the fixed arc contact to linearly move back and forth. The invention additionally relates to the double-acting transmission device of the double-acting high-voltage sulfur hexafluoride circuit breaker.

Description

A kind of two dynamic high-pressure sulfur hexafluoride breakers and two dynamic transmission device thereof
Technical field
The invention belongs to high pressure sulfur hexafluoride breaker technical field, particularly a kind of two dynamic high-pressure sulfur hexafluoride breakers and two dynamic transmission device thereof.
Background technology
Along with the research that deepens continuously to high pressure sulfur hexafluoride breaker arc quenching chamber structure, people have invented again self energy thermally expansive high pressure sulfur hexafluoride breaker arc control device on the basis of single pressure air pressing type SF 6 arc-extinguishing chamber of circuit breaker, it is owing to make use of the energy of electric arc own combustion, thus make operating work greatly reduce, be a a progressive step technically.However, but due to current single pressure type and self-blasting circuit breaker arc control device, a deciliter mode for its dynamic and static contact adopts stationary contact to fix, the motion of simple dependence moving contact end realize with fixed contact deciliter, so the stroke of moving contact is larger during its breaking-closing operating, divide-shut brake is longer for operate time, requires that the operating work of breaker operation mechanism is also larger in addition.
Make reduce as much as possible to reach arc extinguishing fracture apart from the required time during separating brake to realize reducing operating work and improving opening velocity, there is a kind of double movement high voltage circuit breaker, two dynamic transmission device has been set up between the moving contact and static arc contact of its arc control device, static arc contact and moving contact is made to do synchronous counter motion, namely opposing motion both when separating brake, move toward one another both during combined floodgate.Namely Chinese patent literature CN101599389B discloses a kind of double acting self energy thermal expansion type high pressure sulfur hexafluoride breaker arc extinguish chamber with this function, it comprises dynamic contact mechanism and is arranged on the static contact mechanism directly over dynamic contact mechanism, static contact mechanism comprises quiet main contact, static arc contact seat and static arc contact, dynamic contact mechanism comprises quenching nozzle, dynamic main contact and moving arcing contact, dynamic main contact is corresponding with quiet main contact and static arc contact respectively with moving arcing contact, quenching nozzle comprises the main injection jet of inside and outside coaxial setting and interior spout, moving arcing contact is positioned at spout internal, these arc control device are rotated by the pull bar shift fork be connected with dynamic contact mechanism, and then by the bearing pin that connects static arc contact and shift fork and horizontal pin-and-hole coordinate drive static arc contact vertically guide rail move up and down, realize the counter motion of moving contact and static arc contact, this employing shift fork, the two dynamic transmission device not only complex structure of guide rail form, take up room larger, also higher to the required precision of processing and assembling, production technology is more complicated, also exist processing and assembly difficulty larger, the technical problem that manufacturing cost is higher, the gearratio of shift fork transmission is wayward in addition, make the operate time of static arc contact and move distance wayward numerically constant, and easily there is the phenomenon that static arc contact action is delayed, the less stable of its operate time.
Summary of the invention
The object of this invention is to provide a kind of structure and the two dynamic transmission device of manufacturing process simple, lower-cost pair of dynamic high-pressure sulfur hexafluoride breaker.Meanwhile, the present invention also provides a kind of two dynamic high-pressure sulfur hexafluoride breakers that this two dynamic transmission device is housed.
For achieving the above object, of the present invention pair of dynamic high-pressure sulfur hexafluoride breaker adopts following technical scheme: a kind of two dynamic high-pressure sulfur hexafluoride breaker, comprise static arc contact, static contact component and the moving contact component of energy relative to the movement of static contact component linear reciprocation, two dynamic transmission device is provided with between moving contact component and static arc contact, moving contact component drives static arc contact to do counter motion by two dynamic transmission device, described two dynamic transmission device comprises and be arrangeding in parallel, all along active tooth bar and the static arc contact tooth bar of the extension of the moving contact component direction of motion, initiatively be provided with the gear with engaged transmission while of this two tooth bar between tooth bar and static arc contact tooth bar, the rib parallel with active tooth bar is provided with in the side at the static arc contact tooth bar back side, the roller coordinated that simultaneously to roll with rib and the static arc contact tooth bar back side is provided with between rib and static arc contact tooth bar, the rotating shaft position of roller and gear is all fixedly installed, initiatively the bottom of tooth bar and the bottom of rib are all fixedly connected on moving contact component, do linear reciprocation with moving contact component to move, initiatively the upper end of tooth bar is connected by linkage board with the upper end of rib, initiatively tooth bar does counter motion by gear driven static arc contact tooth bar, static arc contact tooth bar is fixedly connected on static arc contact, drive static arc contact to do linear reciprocation to move.
Be provided with for resisting first strutting piece of active tooth bar to the direction strain away from gear in the side at the active tooth bar back side, be provided with for resisting second strutting piece of rib to the direction strain away from described roller in the side at the rib back side, the position of first, second strutting piece is fixed, first strutting piece coordinates with the Dorsal glide of active tooth bar or rolls and coordinates, and the second strutting piece coordinates with the Dorsal glide of rib or rolls and coordinates.
First, second strutting piece described is support roller or supporting roller, and the center of circle conllinear of first, second strutting piece and gear, roller, this circle center line connecting is perpendicular to the direction of motion of moving contact component.
Be provided with the guide plate that plate face is parallel to gear plane in the side of gear or both sides, guide plate is fixedly mounted on static contact component, and described pinion rotation is arranged on guide plate; Initiatively tooth bar upper end be opened in coordinating for guiding the first gathering sill of active tooth bar linear reciprocation movement to lead on guide plate; The upper end of static arc contact tooth bar and be opened in leading for the second gathering sill guiding static arc contact rack linear to move back and forth on guide plate and coordinate; The upper end of rib be opened in coordinating for guiding the 3rd gathering sill of rib linear reciprocation movement to lead on guide plate.
The upper end of the main injection jet of described moving contact component is fixed with spout keeper, and the lower end of described active tooth bar and rib is all fixedly connected on spout keeper; The lower end of described static arc contact tooth bar is fixedly connected on the upper end of static arc contact.
The upper end of the main injection jet of described moving contact component is fixed with spout keeper, and the lower end of described active tooth bar and rib is all fixedly connected on spout keeper; The lower end of described static arc contact tooth bar is fixedly connected on the upper end of static arc contact.
The two dynamic transmission device of of the present invention pair of dynamic high-pressure sulfur hexafluoride breaker adopts following technical scheme: the two dynamic transmission device of a kind of pair of dynamic high-pressure sulfur hexafluoride breaker, this transmission device comprises active tooth bar that be arranged in parallel, that all can extend along the moving contact component direction of motion and static arc contact tooth bar, is initiatively provided with the gear with engaged transmission while of this two tooth bar between tooth bar and static arc contact tooth bar, the rib parallel with active tooth bar is provided with in the side at the static arc contact tooth bar back side, the roller coordinated that simultaneously to roll with rib and the static arc contact tooth bar back side is provided with between rib and static arc contact tooth bar, the rotating shaft position of roller and gear is all fixedly installed, initiatively the bottom of tooth bar is used for being fixedly connected with moving contact component with the bottom of rib, do linear reciprocation with moving contact component to move, initiatively the upper end of tooth bar is connected by linkage board with the upper end of rib, initiatively tooth bar does counter motion by gear driven static arc contact tooth bar, static arc contact tooth bar is used for being fixedly connected with static arc contact, drive static arc contact to do linear reciprocation to move.
Be provided with for resisting first strutting piece of active tooth bar to the direction strain away from gear in the side at the active tooth bar back side, be provided with for resisting second strutting piece of rib to the direction strain away from described roller in the side at the rib back side, the position of first, second strutting piece is fixed, first strutting piece coordinates with the Dorsal glide of active tooth bar or rolls and coordinates, and the second strutting piece coordinates with the Dorsal glide of rib or rolls and coordinates.
First, second strutting piece described is support roller or supporting roller, and the center of circle conllinear of first, second strutting piece and gear, roller, this circle center line connecting is perpendicular to the direction of motion of moving contact component.
Be provided with the guide plate that plate face is parallel to gear plane in the side of gear or both sides, guide plate is fixedly mounted on static contact component, and described pinion rotation is arranged on guide plate; The lower end of described active tooth bar is stiff end, for being fixedly connected on moving contact component, initiatively tooth bar upper end be opened in coordinating for guiding the first gathering sill of active tooth bar linear reciprocation movement to lead on guide plate; The lower end of described static arc contact tooth bar is stiff end, for being fixedly connected on static arc contact, the upper end of static arc contact tooth bar and be opened in leading for the second gathering sill guiding static arc contact rack linear to move back and forth on guide plate and coordinate; The lower end of described rib is stiff end, for being fixedly connected on moving contact component, the upper end of rib be opened in coordinating for guiding the 3rd gathering sill of rib linear reciprocation movement to lead on guide plate.
In the present invention, after two dynamic transmission device between moving contact component and static arc contact adopts rack pinion structure, compared with the drive mechanism of existing shift fork form, the compact overall structure of this transmission device, the technique of the processing of gear, tooth bar and assembling is simple and precision is easy to guarantee, and manufacturing cost reduces; Rack-and-pinion transferring power is larger simultaneously, stable drive, reliability are high, its gearratio is constant simultaneously, transmission accuracy is high, static arc contact and moving contact component is made to have good synchronism and fast response time, through test, the opening velocity of circuit breaker of the present invention can reach 15m/s, well meets the requirement of circuit breaker to opening velocity, and makes the stability of divide-shut brake operate time and the reliability of divide-shut brake action be obtained for sound assurance.In addition, by linkage board, rib and active tooth bar are coupled together, tractive is formed to driving tooth bar, effectively prevent active tooth bar and static arc contact tooth bar generation strain when divide-shut brake moves, ensure that the validity of rack and pinion engagement and the reliability of transmission of power, because rib and active tooth bar symmetry are fixed on main injection jet, make main injection jet stress balance, whole kinematic system stable movement.
After the present invention passes through to arrange the gathering sill corresponding with each tooth bar and rib on guide plate, be convenient to guide the motion of each tooth bar and rib, well ensure that positive engagement and the transmission of power of each rack and pinion, simultaneously, spacing effect can also be played, prevent the part of damage because of excessive velocities generation overshoot.By arranging first, second strutting piece, further reduce the strain of initiatively tooth bar and static arc contact tooth bar and rib when divide-shut brake moves, further increase the reliability of engaged transmission, thus improve the reliability and stability of circuit-breaker switching on-off action; Two strutting pieces adopt the form of support roller or roller to be convenient to the loss reducing friction and reduce operating work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two a kind of embodiment of dynamic high-pressure sulfur hexafluoride breaker of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the stereogram of the semilune body of spout keeper in pie graph 1.
Embodiment
The embodiment of the two dynamic transmission device of provided by the invention pair of dynamic high-pressure sulfur hexafluoride breaker is shown in the two dynamic transmission device shown in Fig. 1 and Fig. 2, it comprises and to be arranged in parallel, all along active tooth bar 6 and the static arc contact tooth bar 24 of the extension of the moving contact component direction of motion, initiatively be provided with the gear 28 with engaged transmission while of this two tooth bar between tooth bar and static arc contact tooth bar, the rib 22 parallel with active tooth bar is also provided with in the side at the static arc contact tooth bar back side, the roller 25 coordinated that simultaneously to roll with rib and the static arc contact tooth bar back side is provided with between rib and static arc contact tooth bar 24, the position of the rotating shaft of roller 25 and gear 28 is and is fixedly installed, initiatively the bottom of tooth bar is used for being fixedly connected with moving contact component with the bottom of rib, do upper and lower linear reciprocation with moving contact component to move, initiatively the upper end of tooth bar is connected by linkage board 34 with the upper end of rib, initiatively tooth bar 6 drives static arc contact tooth bar 24 to do counter motion by gear 28, static arc contact tooth bar 24 is for being fixedly connected with static arc contact 21, drive static arc contact to do linear reciprocation to move.
In the present embodiment, the guide plate 3 that plate face is parallel to gear plane is equipped with in the both sides of gear, the lower end of two guide plates is for being installed in the arcing contact seat 23 of static contact component, be folded with T-shaped cushion block 2 between the upper end of two guide plates, and linked together by this cushion block, to ensure the distance between two guide plates, the jut of this T-shaped cushion block is located at outside guide plate, this part can adopt cylinder, the form such as tetragonal body or bulb, holds use when being convenient to assembling; Gear 28 and roller 25 are arranged on two guide plates 3 respectively by respective axis of rotation; Initiatively the lower end of tooth bar 6 be stiff end, for being fixedly connected on moving contact component, initiatively tooth bar upper end by guide finger 4 disposed thereon be opened in coordinating for guiding the first gathering sill 31 of initiatively tooth bar linear reciprocation movement lead on guide plate, its fit form can be slip or rolling cooperation; The lower end of described static arc contact tooth bar 24 is stiff end, for being fixedly connected on static arc contact 21, being led by the second gathering sill 32 that guide finger disposed thereon and the confession be opened on guide plate guide static arc contact rack linear to move back and forth and coordinating in the upper end of static arc contact tooth bar, this fit form can be slide or roll to coordinate; The lower end of described rib 22 is stiff end, for being fixedly connected on moving contact component, the upper end of rib by the guide finger on it be opened in coordinating for guiding the 3rd gathering sill 33 of rib linear reciprocation movement to lead on guide plate.The two ends of described linkage board 34 realize the connection with initiatively tooth bar and rib respectively by the guide finger of active tooth bar 6 and rib 22 upper end, rib is with initiatively tooth bar length is equal, so rib is in isometry position with the guide finger on active tooth bar after assembling, make linkage board perpendicular to active tooth bar and rib.
Guide plate 3 is rotatablely equipped with on the position at correspondence active tooth bar 6 back side for resisting first strutting piece 5 of active tooth bar to the direction strain away from gear 28, same, be provided with for resisting second strutting piece of rib to the direction strain away from roller 25 in the side at the rib back side, two strutting pieces are support roller, first strutting piece rolls with the back side of active tooth bar and coordinates, and the second strutting piece rolls with the back side of rib and coordinates; Simultaneously, the center of circle conllinear of first, second strutting piece, gear 28 and roller 25 4, and four circle center line connectings are perpendicular to the direction of motion of moving contact component, also namely vertical with static arc contact tooth bar, can effectively prevent active tooth bar 6 and static arc contact tooth bar 24 when divide-shut brake from strain occurring thus affects positive engagement and the transmission of power of wheel and rack like this, make transmission of power more reliable and more stable, further increase stability and the reliability of divide-shut brake operate time.Certainly, if four centers of circle are not point-blank, the effect of certain resistance strain can be played equally.
A kind of embodiment of provided by the invention pair of dynamic high-pressure sulfur hexafluoride breaker is shown in Fig. 1--shown in Fig. 3, it comprises static arc contact 21, fixed static contact component and the moving contact component of energy relative to the movement of static contact component linear reciprocation, wherein, the main injection jet 18 that moving contact component comprises moving contact 10 and is arranged on moving contact, the upper end of main injection jet is fixedly connected with spout keeper 7, this spout keeper is relatively fastened on after on main injection jet by two semi-moon shaped bodies as shown in Figure 3, the mode of being tightened up by securing member radial direction is more tightly bound round on main injection jet, the mating surface of main injection jet and spout keeper is arranged with the draw-in groove for axial location and card edge, this assembly connection structure of spout keeper is simple, be convenient to install.Spout keeper 7 is also fixedly equipped with moved end radome 20, this radome is around in the periphery of main injection jet oral area to downward-extension, interior spout 17 is had in main injection jet, moving arcing contact 16 is had in interior spout, the lower end of moving arcing contact is equiped with pull bar 13, and whole moving contact component is sleeved in movable contact block 11, the upper and lower slippage of movable contact block relatively; Static contact component comprises fixed contact pedestal 8 and is arranged on the quiet bearing 1 of upper end of fixed contact pedestal, the inner chamber of fixed contact pedestal and the inner space of quiet bearing form a space that can move up and down for static arc contact 21 and two dynamic transmission device, static contact finger 19 is equiped with inside the bottom of fixed contact pedestal 8, bottom periphery is provided with the quiet end shield 9 be arranged on fixed contact pedestal, in fixed contact pedestal 8, described static arc contact 21 slides and is installed in arcing contact seat 23, and arcing contact seat is fixedly arranged on fixed contact pedestal 8.
In the present embodiment, two dynamic transmission device is provided with between moving contact component and the static arc contact of static contact component, moving contact component drives static arc contact 21 to do counter motion by two dynamic transmission device, this pair of dynamic transmission device is identical with the structure of the two dynamic transmission device that the invention described above provides, will not repeat herein, guide plate 3 in this pair of dynamic transmission device is positioned at quiet bearing 1, the lower end of guide plate is fixedly connected on the upper end of arcing contact seat 23, initiatively the lower end of tooth bar 6 and the lower end of rib 22 are all fixedly connected on the upper end of spout keeper 7, the lower end of static arc contact tooth bar 24 is fixedly connected on the upper end of static arc contact 21.
The divide-shut brake motion process of the present embodiment is as follows: during separating brake, pull bar 13 moves downward, drive moving contact component moves downward, and the spout keeper 7 in this assembly drives static arc contact 21 to move upward by the engaged transmission of active tooth bar 6, gear 28 and static arc contact tooth bar 24, realizes separating brake; During combined floodgate, pull bar 13 moves upward, and the direction of motion of each moving parts is just contrary with separating brake process, no longer carefully states; In divide-shut brake process, rib 22 and initiatively tooth bar 6 synchronous interaction, drive by spout keeper, moved end radome 20 by spout keeper 7 with moving together.In Fig. 1, Fig. 2 12 is bearing, and 14 is the insulated parts in pull bar.
In other embodiments of the present invention, initiatively tooth bar, rib are fixedly connected with the mode that also can adopt other with moving contact component, its lower end or side such as can be utilized directly to be fixedly connected on main injection jet, at this moment just can omit spout keeper; The strutting piece that support roller in two dynamic transmission device also can adopt the form of roller or coordinate with active tooth bar Dorsal glide, in addition, corresponding strutting piece can also be omitted when the rigidity of active tooth bar and rib and intensity enough meet rack-and-pinion positive engagement; Guide plate is fixing each tooth bar, rib and gear and strutting piece and arrange, in the specific implementation, can arrange guide plate according to actual conditions at gear bilateral also can adopt in the one-sided form arranging guide plate of gear, and the structure of guide plate is also not limited to plank frame, as long as play the effect that energy Stationary liquid answers part; Gathering sill on guide plate is not necessary yet, if having can to each tooth bar carry out spacing and and the locating part that is slidably matched of respective rack; If each tooth bar being fixedly connected with and can ensureing that it can move stably relatively with the cooperation of gear, support roller by lower end, now also can omit spacing and guide frame; Each gear and support roller also can adopt other supports be fixed on fixed contact pedestal or quiet bearing to install.

Claims (9)

1. a two dynamic high-pressure sulfur hexafluoride breaker, comprise static arc contact, static contact component and the moving contact component of energy relative to the movement of static contact component linear reciprocation, two dynamic transmission device is provided with between moving contact component and static arc contact, moving contact component drives static arc contact to do counter motion by two dynamic transmission device, it is characterized in that: described two dynamic transmission device comprises active tooth bar that be arranged in parallel, that all extend along the moving contact component direction of motion and static arc contact tooth bar, is initiatively provided with the gear with engaged transmission while of this two tooth bar between tooth bar and static arc contact tooth bar, the rib parallel with active tooth bar is provided with in the side at the static arc contact tooth bar back side, the roller coordinated that simultaneously to roll with rib and the static arc contact tooth bar back side is provided with between rib and static arc contact tooth bar, the rotating shaft position of roller and gear is all fixedly installed, initiatively the bottom of tooth bar and the bottom of rib are all fixedly connected on moving contact component, do linear reciprocation with moving contact component to move, initiatively the upper end of tooth bar is connected by linkage board with the upper end of rib, stop active tooth bar and static arc contact tooth bar generation strain when divide-shut brake moves, initiatively tooth bar does counter motion by gear driven static arc contact tooth bar, static arc contact tooth bar is fixedly connected on static arc contact, drive static arc contact to do linear reciprocation to move, the upper end of the main injection jet of described moving contact component is fixed with spout keeper, the lower end of described active tooth bar and rib is all fixedly connected on spout keeper, the lower end of described static arc contact tooth bar is fixedly connected on the upper end of static arc contact.
2. according to claim 1 pair of dynamic high-pressure sulfur hexafluoride breaker, it is characterized in that: be provided with for resisting first strutting piece of active tooth bar to the direction strain away from gear in the side at the active tooth bar back side, be provided with for resisting second strutting piece of rib to the direction strain away from described roller in the side at the rib back side, the position of first, second strutting piece is fixed, first strutting piece coordinates with the Dorsal glide of active tooth bar or rolls and coordinates, and the second strutting piece coordinates with the Dorsal glide of rib or rolls and coordinates.
3. according to claim 2 pair of dynamic high-pressure sulfur hexafluoride breaker, it is characterized in that: first, second strutting piece described is support roller or supporting roller, the center of circle conllinear of first, second strutting piece and gear, roller, this circle center line connecting is perpendicular to the direction of motion of moving contact component.
4. according to described two dynamic high-pressure sulfur hexafluoride breakers arbitrary in claim 1-3, it is characterized in that: be provided with the guide plate that plate face is parallel to gear plane in the side of gear or both sides, guide plate is fixedly mounted on static contact component, and described pinion rotation is arranged on guide plate; Initiatively tooth bar upper end be opened in coordinating for guiding the first gathering sill of active tooth bar linear reciprocation movement to lead on guide plate; The upper end of static arc contact tooth bar and be opened in leading for the second gathering sill guiding static arc contact rack linear to move back and forth on guide plate and coordinate; The upper end of rib be opened in coordinating for guiding the 3rd gathering sill of rib linear reciprocation movement to lead on guide plate.
5. according to claim 4 pair of dynamic high-pressure sulfur hexafluoride breaker, is characterized in that: the upper end of the main injection jet of described moving contact component is fixed with spout keeper, and the lower end of described active tooth bar and rib is all fixedly connected on spout keeper; The lower end of described static arc contact tooth bar is fixedly connected on the upper end of static arc contact.
6. the two dynamic transmission device of a two dynamic high-pressure sulfur hexafluoride breaker, it is characterized in that: this transmission device comprises active tooth bar that be arranged in parallel, that all extend along the moving contact component direction of motion and static arc contact tooth bar, initiatively between tooth bar and static arc contact tooth bar, be provided with the gear with this two tooth bar engaged transmission simultaneously, the rib parallel with active tooth bar is provided with in the side at the static arc contact tooth bar back side, the roller coordinated that simultaneously to roll with rib and the static arc contact tooth bar back side is provided with between rib and static arc contact tooth bar, the rotating shaft position of roller and gear is all fixedly installed, initiatively the bottom of tooth bar is used for being fixedly connected with moving contact component with the bottom of rib, do linear reciprocation with moving contact component to move, initiatively the upper end of tooth bar is connected by linkage board with the upper end of rib, stop active tooth bar and static arc contact tooth bar generation strain when divide-shut brake moves, initiatively tooth bar does counter motion by gear driven static arc contact tooth bar, static arc contact tooth bar is used for being fixedly connected with static arc contact, drive static arc contact to do linear reciprocation to move.
7. the two dynamic transmission device of according to claim 6 pair of dynamic high-pressure sulfur hexafluoride breaker, it is characterized in that: be provided with for resisting first strutting piece of active tooth bar to the direction strain away from gear in the side at the active tooth bar back side, be provided with for resisting second strutting piece of rib to the direction strain away from described roller in the side at the rib back side, the position of first, second strutting piece is fixed, first strutting piece coordinates with the Dorsal glide of active tooth bar or rolls and coordinates, and the second strutting piece coordinates with the Dorsal glide of rib or rolls and coordinates.
8. the two dynamic transmission device of according to claim 7 pair of dynamic high-pressure sulfur hexafluoride breaker, it is characterized in that: first, second strutting piece described is support roller or supporting roller, the center of circle conllinear of first, second strutting piece and gear, roller, this circle center line connecting is perpendicular to the direction of motion of moving contact component.
9. according to the two dynamic transmission device of described two dynamic high-pressure sulfur hexafluoride breakers arbitrary in claim 6-8, it is characterized in that: be provided with the guide plate that plate face is parallel to gear plane in the side of gear or both sides, guide plate is fixedly mounted on static contact component, and described pinion rotation is arranged on guide plate; The lower end of described active tooth bar is stiff end, for being fixedly connected on moving contact component, initiatively tooth bar upper end be opened in coordinating for guiding the first gathering sill of active tooth bar linear reciprocation movement to lead on guide plate; The lower end of described static arc contact tooth bar is stiff end, for being fixedly connected on static arc contact, the upper end of static arc contact tooth bar and be opened in leading for the second gathering sill guiding static arc contact rack linear to move back and forth on guide plate and coordinate; The lower end of described rib is stiff end, for being fixedly connected on moving contact component, the upper end of rib be opened in coordinating for guiding the 3rd gathering sill of rib linear reciprocation movement to lead on guide plate.
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