CN201402753Y - Isolating and earthing switch operating mechanism for combined electrical apparatus - Google Patents
Isolating and earthing switch operating mechanism for combined electrical apparatus Download PDFInfo
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- CN201402753Y CN201402753Y CN2009200889477U CN200920088947U CN201402753Y CN 201402753 Y CN201402753 Y CN 201402753Y CN 2009200889477 U CN2009200889477 U CN 2009200889477U CN 200920088947 U CN200920088947 U CN 200920088947U CN 201402753 Y CN201402753 Y CN 201402753Y
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Abstract
The utility model relates to an isolating and earthing switch operating mechanism for combined electrical apparatus, which is characterized in that a cylindrical energy-storage flywheel and a round table-shaped striking flywheel are mounted on a driving shaft, and a flyweight is arranged in the striking flywheel; a transition wheel and a radial cam and an index wheel are arranged on an output shaft, wherein the transition wheel and the radial cam are in running fit with the output shaft, and the index wheel is fixedly connected with the output shaft; the transition wheel is fixedly connected with the radial cam through an end-surface crisscross key; the flyweight is in the intermittent striking connection with a tile-shaped rotary hammer on the transition wheel, and the radial cam drives the index wheel and the output shaft to rotate at the set angle through a movable key; a tripper forcibly releasing and striking is arranged below the transition wheel; and a steel ball speeding the flyweight and a spring are arranged in the flyweight. The mechanism can realize different output angles (ranging from 15 degrees to 165 degrees) at two stations, threes stations and multiple stations, and is mainly applied in the operations of an isolating and earthing switch and an isolating and earthing combination switch of the combined electrical apparatus with voltages like 110kv, 220kv and 550kv, and has main advantages of high indexing accuracy, firm position-locking, convenient adjustment, low manufacturing cost, compact structure, small volume and wide application.
Description
Technical field
The utility model relates to a kind of switch operating mechanism, especially relates to a kind of combined electrical apparatus isolation earthing switch operating mechanism.
Background technology
Combined electrical apparatus is isolated, the action request operating mechanism of earthed switch must possess many-sided performance: the first have two promptly two stations, three promptly three stations or a plurality of be the service position coupling of multistation operating position and switch; It two is to have certain moment of torsion, can guarantee the action of switch; It three is that certain responsiveness will be arranged, to satisfy the switch kinetic characteristic; It four is that output angle is accurate, guarantees the switch service position and can be locked.
At present, combined electrical apparatus domestic and introduction of foreign technology is divided into two classes with regard to isolation, earthed switch: the one, and independent isolating, earthed switch need two station mechanisms to operate one to one; The 2nd, isolation, ground connection combination multistation switch need the operation of multistation mechanism.Two station spring quick mechanisms are to drive connecting lever by motor by the worm gear-endless screw transmission to make length of spring compressed-energy storage-release finish the actuating of two station switches.Three station spring quick mechanisms are because structure is too numerous and diverse, volume is crossed very much not and approved by industry.Be theoretic scheme, fail commercialization.Multi-station electric formula quick mechanism is by feed screw nut or gear, radial cams and indexing mechanism transmission actuating switch by a heavy-duty motor.The defective that mainly has following several respects:
The one, complex structure, volume are big: performance is good, reliability is high, miniaturization is switch product international trend.The operating mechanism volume forms restriction to the miniaturization Design of switch product greatly.Complex structure, mechanical drive train growing way must cause the failure rate height, will directly threaten the switch reliability of products.The big more weight of volume is big more, all can bring a lot of inconvenience to transmission, packing, transportation, preservation, assembling, the debugging of mechanism.
The 2nd, power of motor is big: power of motor is greatly that loop current is big, directly causes the increasing of control loop electric elements power and lead, and production cost is improved.The simultaneous faults rate also can increase.
The 3rd, indexing accuracy is low: two present station mechanisms mostly adopt buffer to consume mechanism's dump energy and location.Buffer installation site, height all can influence the anglec of rotation of mechanism, and the dispersiveness of mechanism's anglec of rotation is very big.Debugging to switch causes trouble, influences production efficiency and switch complete machine quality.
The utility model content
The purpose of this utility model is to provide the combined electrical apparatus isolation earthing switch operating mechanism that a kind of two stations, three stations or multistation combined electrical apparatus are isolated, earthed switch uses is simple in structure, volume is little, power is little, indexing accuracy is high.
For achieving the above object, the utility model is by the following technical solutions:
Combined electrical apparatus isolation earthing switch operating mechanism of the present utility model, the power transmission shaft that is in transmission connection with drive motors is in transmission connection by transmission device and output shaft concentric, power transmission shaft is connected by bearing and support activity, and the secondary control unit of drive motors is connected with output shaft by quadric chain.Described transmission device by cylindrical accumulated energy flywheel, truncated cone-shaped hit flywheel, fly piece, pass cock wheel, radial cams, draw key, divided wheel, location-plate, release form.
Accumulated energy flywheel is fixedlyed connected with power transmission shaft by driving key, hit flywheel and be fixedly connected on the end of power transmission shaft near output shaft, one side of hitting the close output shaft of flywheel is provided with a little round platform, portion radially is provided with a rectangular recess at the roundlet you, fly piece place the rectangular recess intermediate solid drive shaft top and with the rectangular recess matched in clearance, the bottom of power transmission shaft is provided with back-moving spring, and flies spring pull bar that piece fixedlys connected and radially passes power transmission shaft, back-moving spring successively and regulate the location by self-locking nut.
Divided wheel, radial cams, biography cock wheel are installed on the output shaft from left to right; The biography cock wheel is a dumb-bell shape, and the two ends that dumb-bell shape passes cock wheel are arranged with and pass 2 watts of shapes commentaries on classics hammers that axially protrude that cock wheel is connected as a single entity to the right, and watt shape is changeed the inner arc of hammer and the outer rim of little round platform leaves the gap, and watt shape is changeed the outer rim of hammering into shape and is axially arranged with " V " connected in star.
Release by " L " type dropout plate, change hammer alignment pin, spring accordingly with " V " connected in star and form, the flat board of " L " type dropout plate is fixed on the support base plate that passes under the cock wheel, the riser of " L " type dropout plate places watt shape to change hammer and hits between the flywheel, and change the right side of hammer with watt shape, the gap is left in the left side of hitting flywheel, it is consistent that the upper surface of " L " type dropout plate riser and watt shape are changeed the horizontal line height of hammering into shape of interior camber line two-end-point; The outer rim that watt shape is changeed hammer leaves the gap with the dull and stereotyped upper surface of " L " type dropout plate, and change the hammer alignment pin and place under the output shaft in the flat board with " L " type dropout plate of " V " connected in star relevant position, and through spring reset.
Leave the gap between the right side of biography cock wheel and the left side of little round platform, axially leave the gap between power transmission shaft and the output shaft, the left side and the radial cams that pass cock wheel are connected as a single entity by the end face cross key, pass cock wheel, radial cams and output shaft activity and cooperate.
The divided wheel that is located at the output shaft output is an alms bowl shape, divided wheel is fixedlyed connected with output shaft by driving key, divided wheel is sleeved on the outer rim of radial cams simultaneously and cooperates with radial cams is movable, the divided wheel cylindrical is installed in the endoporus that location-plate is provided with, and cooperate with endoporus is movable, location-plate is fixed on the support base plate; Radially be provided with a plurality of draw key installing holes on the alms bowl body wall of divided wheel, draw key places in the draw key installing hole.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, the described piece that flies is flying to be provided with a through hole on the piece centrifugal motion vertical direction, 2 steel balls are housed in the through hole, be provided with spring between 2 steel balls, the both sides corresponding to through hole on the inwall of the rectangular recess of described little round platform are respectively equipped with and the corresponding arc groove of steel ball.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, the quantity of described draw key installing hole are three, and during for work, output shaft moves the anglec of rotation at every turn can be 15 °-165 ° arbitrarily angled the adjustment as two stations or three workers.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, output shaft moves at every turn and rotates an embodiment of 30 ° during as two stations or three stations, and the angle between adjacent two draw key installing hole center lines is respectively 150 °, 60 °, 150 °.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, during as two stations or three stations, output shaft moves at every turn and rotates an embodiment of 45 °, and the angle between adjacent two draw key installing hole center lines is respectively 135 °, 90 °, 135 °.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, output shaft moves at every turn and rotates an embodiment of 60 ° during as two stations, three stations or multistation, and the angle between adjacent two draw key installing hole center lines is respectively 120 °, 120 °, 120 °.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, as an embodiment of two stations, the quantity of described draw key installing hole is two, output shaft moves the anglec of rotation for can be arbitrarily angled adjustment the between 15 °-165 ° at every turn.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, the normal direction nominal dimension of described draw key is consistent to the distance between the bottom portion of groove of radial cams to the inwall of the distance between the keyway bottom of positioning spline, endoporus with the radial cams outer rim.To ensure the motion quality of fit, to guarantee the accuracy of calibration.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, described radially outer edge that flies piece and watt shape change gap between the hammer inner arc and are slightly larger than steel ball from static stroke between when shifting out arc groove.So that before strike, obtain acceleration.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, described accumulated energy flywheel are that a plurality of monolithic flywheels form.Its objective is the energy size of adjusting accumulated energy flywheel according to the size of switching manipulation merit.
The beneficial effects of the utility model are: the utility model adopts accumulated energy flywheel to drive to hit flywheel will fly piece and throws away to hit and pass cock wheel and make and pass cock wheel and rotate, and makes to pass the each Rotate 180 degree of cock wheel under the effect of release.Pass cock wheel and drive the radial cams rotation, radial cams drives divided wheel and output shaft by draw key and rotates a certain angle according to the layout of draw key installing hole on the divided wheel, divided wheel, output shaft are limited, radial cams continuously rotation with divided wheel, output shaft locking.Compact conformation, scientific and reasonable.The design that flies the piece accelerating structure makes and flies can obtain big acceleration before piece hits, and increases and hits the area that watt shape is changeed hammer, obtains strike effect preferably.Adopt release can avoid passing many commentaries on classics of cock wheel or revolution.Concrete beneficial effect is as follows:
1, indexing accuracy height: wedge type calibration, positioner that the utility model adopts draw key to combine with divided wheel, the Design Theory error is ± 0.25 °.The indexing accuracy height, locking position is firm.Simultaneously, draw key is by adjusting the angle between the draw key installing hole on the divided wheel, and the anglec of rotation that can make its output shaft is 15 °-165 ° arbitrarily angled the adjustment.Make its adjustment convenient, use more extensive.
2, easy to adjust: the utility model only needs self-locking nut is regulated, i.e. the adjustable mechanism responsiveness.The switch integral installation is joined, debugs, tested and bring convenience.
3, loop current is little: electric motor loop electric current of the present utility model has only 1A, and 1/2nd also little than spring mechanism is 1/5th of electrodynamic type mechanism.Effectively reduce manufacturing cost.Because the caloric value of secondary circuit is less, the useful life of secondary component and operational reliability will increase simultaneously.
4, compact conformation: compare with spring, electrodynamic type mechanism, the utility model transmission link is few, compact conformation, profile are little.Main movement parts quantity be its 1/2nd, overall volume be its 30～40%, save material, for the miniaturization Design of switch provides the optimized choice scheme.
5, use extensively: the utility model can be applicable to easily that the actuating of 110～550kV combined electrical apparatus, two stations, three-station, compound combined electrical equipment five station switches and other electrical equipment, other industry have the actuating of similar action request.Also applicable to the actuating of on-load switch and cut-offfing of circuit breaker load current.
The utility model drives accumulated energy flywheel rotation energy storage by drive motors.Under action of centrifugal force, the piece that flies that hits on the flywheel moves along the flywheel centrifugal direction, and moment hits and passes cock wheel, release flywheel rotating energy, makes output shaft do rapid circular movement.The positioner of being made up of divided wheel, draw key, location-plate makes output shaft decide angular turn, accurately exports torque and the angle and the latched position of designing requirement.Can realize different output angles such as 30 °, 45 °, 60 °, 85 ° of two stations, three stations, multistation.Be applied to 110kV, 220kV, the isolation of 550kV combined electrical apparatus, earthed switch and isolate the operation of ground connection unit switch.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following specification, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the schematic top plan view of the utility model structure.
Fig. 2 is the H-H cross-sectional schematic of Fig. 1
Fig. 3 analyses and observe rough schematic view for the E-E of Fig. 2
Fig. 4 analyses and observe rough schematic view for the utility model flies piece after flying out
Fig. 5 is the F-F cross-sectional schematic of Fig. 2
Fig. 6 flies steel ball in the piece cross-sectional schematic when breaking away from the ball groove for the utility model
Fig. 7 is the G-G cutaway view of Fig. 2
Position when Fig. 8 turns clockwise a station for output shaft on the basis of Fig. 7 between radial cams, divided wheel, draw key and the location-plate concerns profile
Position when Fig. 9 turns clockwise a station again for output shaft on the basis of Fig. 8 between radial cams, divided wheel, draw key and the location-plate concerns profile
Position when Figure 10 is the utility model two stations or 30 ° of centre positions that rotate embodiment of three station output shafts between radial cams, divided wheel, draw key and the location-plate concerns profile
Figure 11 is the profile that the utility model two stations or 30 ° of rotations of three station output shafts embodiment draw key installing hole distribute on divided wheel
Figure 12 is the profile that the utility model two stations or 45 ° of rotations of three station output shafts embodiment draw key installing hole distribute on divided wheel
Figure 13 is the profile that the utility model two stations, three stations or 60 ° of rotations of a plurality of station output shaft embodiment draw key installing hole distribute on divided wheel
The profile that Figure 14 distributes on divided wheel for 82 ° of rotations of the utility model two station output shafts embodiment draw key installing hole
Mark among the figure: 1-power transmission shaft 2-accumulated energy flywheel 3-driving key 4-hits flywheel 5-and flies piece 6-biography cock wheel 7-radial cams 8,8-1,8-2,22-watt of shape of 8-3-draw key 9-divided wheel 10-location-plate 11-output shaft 12-driving key 13-secondary control unit 14-drive motors 15-transmission device 16-roundlet platform 17-rectangular recess 19-spring pull bar 20-self-locking nut 21-back-moving spring changeed hammer 23-" V " connected in star 24-steel ball 25-spring 26-" L " type dropout plate 27-endoporus 28-draw key installing hole 29-through hole 30-arc groove 31-monolithic flywheel 32-release 33-and changeed hammer alignment pin 34-spring A, the upper surface D1-watt of shape that B-positioning spline C-flies outer rim D-" L " the type dropout plate riser of piece changeed the horizontal line of hammering into shape of interior camber line two-end-point
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, combined electrical apparatus isolation earthing switch operating mechanism of the present utility model, the power transmission shaft 1 that is in transmission connection with drive motors 14 is in transmission connection by transmission device 15 and output shaft 11 concentrics, power transmission shaft is connected by bearing and support activity, and the secondary control unit 13 of drive motors 14 is connected with output shaft by quadric chain.Described transmission device 15 by cylindrical accumulated energy flywheel 2, truncated cone-shaped hit flywheel 4, fly piece 5, pass cock wheel 6, radial cams 7, draw key 8, divided wheel 9, location-plate 10, release 32 form; Accumulated energy flywheel 2 is fixedlyed connected with power transmission shaft 1 by driving key 3, hit flywheel 4 and be fixedly connected on the end of power transmission shaft near output shaft, one side of hitting flywheel 4 close output shafts is provided with a roundlet platform 16, radially be provided with a rectangular recess 17 in roundlet you portion, fly piece 5 place the rectangular recess intermediate solid drive shaft top and with the rectangular recess matched in clearance, the bottom of power transmission shaft is provided with back-moving spring 21, and flies spring pull bar 19 that piece fixedlys connected and radially passes power transmission shaft, back-moving spring successively and regulate the location by self-locking nut 20.
Divided wheel 9, radial cams 7, biography cock wheel 6 are installed on the output shaft 11 from left to right; Passing cock wheel 6 is dumb-bell shape, the two ends that dumb-bell shape passes cock wheel are arranged with and pass 2 watts of shapes commentaries on classics hammers 22 that axially protrude that cock wheel is connected as a single entity to the right, the inner arc that watt shape is changeed hammer leaves the gap with the outer rim of little round platform, and watt shape is changeed an outer rim of hammering into shape and is axially arranged with " V " connected in star 23.
Leave the gap between the right side of biography cock wheel 6 and the left side of little round platform, axially leave the gap between power transmission shaft and the output shaft, the left side and the radial cams 7 that pass cock wheel 6 are connected as a single entity by the end face cross key, pass cock wheel 6, radial cams 7 and 11 movable cooperations of output shaft.The divided wheel 9 that is located at the output shaft output is alms bowl shape, divided wheel is fixedlyed connected with output shaft by driving key 12, divided wheel is sleeved on the outer rim of radial cams simultaneously and cooperates with radial cams is movable, the divided wheel cylindrical is installed in the endoporus 27 that location-plate 10 is provided with, and cooperate with endoporus is movable, radial symmetric is provided with 2 and is used for axial location keyway A, the B spacing with draw key on the hole wall of endoporus, and location-plate is fixed on the support base plate; Radially be provided with a plurality of draw key installing holes 28 on the alms bowl body wall of divided wheel, draw key 8 places in the draw key installing hole.
Fly piece 5 and flying to be provided with a through hole 29 on the piece centrifugal motion vertical direction, 2 steel balls 24 are housed in the through hole, be provided with spring 25 between 2 steel balls, the both sides corresponding to through hole on the inwall of described roundlet platform rectangular recess are respectively equipped with and the corresponding arc groove 30 of steel ball.Fly the radially outer edge of piece 5 and be slightly larger than steel ball 24 from relative static, so that before strike, obtain acceleration to the stroke that moves out between the ball groove 30 with gap between watt set hammer body 22 inner arcs.
Accumulated energy flywheel 2 is that a plurality of monolithic flywheels are formed, and its objective is the energy of the size adjustment flywheel of switching manipulation merit.
As Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, the normal direction nominal dimension of draw key 8 is consistent to the distance between the bottom portion of groove of radial cams 7 to the inwall of the distance between the keyway bottom of positioning spline A or B, endoporus 27 with radial cams 7 outer rims.
When the hole count of draw key installing hole 28 is 3, the anglec of rotation of output shaft 11 can be between 15 °-165 ° arbitrarily angled the adjustment.
As shown in figure 11, an embodiment of 30 ° of output shaft 11 rotations during as two stations or three stations, the angle between adjacent 2 center line of draw key installing hole 28 is respectively 150 °, 60 °, 150 °.
As shown in figure 12, an embodiment of 45 ° of output shaft rotations during as two stations or three stations, the angle between adjacent 2 center line of draw key installing hole 28 is respectively 135 °, 90 °, 135 °.
As shown in figure 13, an embodiment of 60 ° of output shaft 11 rotations during as two stations, three stations or multistation, the angle between adjacent 2 center line of draw key installing hole 28 is respectively 120 °, 120 °, 120 °.
As shown in figure 14, as an embodiment of two stations, the hole count of draw key installing hole 28 is 2, and output shaft 11 anglecs of rotation are can be arbitrarily angled adjustment the between 15 °-165 °.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, shown in Figure 14, the operation principle of the utility model mechanism is as follows:
1, mechanism's energy source
The utility model is made accumulated energy flywheel 2, strike flywheel 4 and flies piece 5 by gear, power transmission shaft 1 by a small-power drive motors 14 and rotates around the axial line of power transmission shaft 1.Owing to accumulated energy flywheel 2, hit flywheel 4 and have certain quality and rotary speed, promptly certain rotating energy is for the action of mechanism provides motion-promotion force.
2, mechanism's torque output principle
It is initial to hit flywheel 4 rotations, when speed does not reach designing requirement, acts on the centrifugal force that flies on the piece 5 pulling force less than effect back-moving spring 21 thereon, flies 5 of pieces and does synchronously and rotatablely move with hitting flywheel 4.Raising along with accumulated energy flywheel 2, strike flywheel 4 rotating speeds, when acting on the centrifugal force that flies on the piece 5 greater than the pulling force of back-moving spring 21, flying piece 5 will move to centrifugal direction along the rectangular recess in the roundlet platform 16 17, tangentially hit passing the side that cock wheel 6 on watt shapes are changeed hammer 22.Accumulated energy flywheel 2 and the rotating energy that hits flywheel 4 are passed to cock wheel 6 be converted into moment of torsion.Be connected as a single entity by the end face cross key owing to pass cock wheel 6 and radial cams 7, radial cams 7, draw key 8 drive divided wheel 9 rotatablely moves output shaft 11.Output shaft 11 is connected with the switch of institute's actuating, and the moment of torsion of She Dinging imports the switch power shaft into and makes the switch quick acting the most at last.
3, mechanism's calibration output principle
The corner output of deciding of mechanism realizes by following two parts:
The one, the design by release 32 makes that flying piece 5 hits and pass disengagement automatically behind the cock wheels 6 common Rotate 180s °.The last plane D of " L " type dropout plate 26 risers is consistent with the height that biography cock wheel 6 on watt shapes commentaries on classics hammer 22 on watt shapes are changeed the horizontal line D1 of interior camber line two-end-point that hammers into shape in the release 32.The D face of release flies the outer rim C face of piece 5 with compressing, the many height of its flywheel rotating speed all can not be hit at release 32 installation sides pass cock wheel 6.Its purpose is to fly the strike that 5 pairs of pieces pass cock wheel 6 at every turn and must finishes at the release installation side from release symmetry side, and passes cock wheel 6 and only rotate 180 ° at every turn.The 2nd, the design by radial cams 7, draw key 8, divided wheel 9, location-plate 10 makes output shaft 11 decide angular turn on request at every turn.Pass cock wheel 6 and be connected by the end face cross key with radial cams 7, radial cams 7 each actions also can only Rotate 180 °.
When radial cams 7 moves clockwise from the centre position of three stations, it protrudes the inclined-plane of inclined-plane bump draw key 8-2, drive draw key 8-1,8-2,8-3, divided wheel 9 rotations, by the inclined-plane of positioning spline A on endoporus 27 inwalls of location-plate 10 draw key 8-1 is extruded from positioning spline A simultaneously, make the motion clockwise synchronously of radial cams 7, draw key 8-1,8-2,8-3 and divided wheel 9, output shaft 11.When draw key 8-2 moved to positioning spline B, the protrusion inclined-plane of radial cams 7 was got into draw key 8-2 in the positioning spline B.Draw key 8-1,8-2,8-3, divided wheel 9, output shaft 11 turn over 60 ° synchronously clockwise to be stopped.Radial cams 7 continue dextrorotations go to 180 ° stop and with draw key 8-2 compression set in positioning spline B.Realization output shaft 11 turns clockwise 60 ° and also locks.In like manner, action next time is if continue to turn clockwise with drive draw key 8-3 to positioning spline A.If be rotated counterclockwise draw key 8-1 is brought back in the positioning spline A.
Like this, when moving at every turn, mechanism passes cock wheel 6, radial cams 7 Rotate 180s °, 60 ° of divided wheel 9, output shaft 11 rotations.And no matter two stations, three stations, five stations, six stations all can satisfy.
4, mechanism position locking principle
Because radial cams 7 continued to rotate certain angle after divided wheel 9 stop motions, by the projection of radial cams 7 with draw key 8 compression sets in the positioning spline of endoporus 27 inwalls, thereby make divided wheel 9 be locked in desired location.At this moment divided wheel 9 can only be moved and can not be moved by output shaft 11, divided wheel 9 active contrary operation radial cams 7 by radial cams 7 and draw key 8 passive operations.As long as that is the projection of radial cams 7 drops on the positioning spline orientation that is pressed into draw key 8, output shaft 11 can not active movement, promptly by locked.
In order to guarantee that radial cams 7 can push down the draw key of being got in the positioning spline 8 after each release, radial cams 7 at every turn can only Rotate 180 °.A movable locating device that changes hammer alignment pin 33 and spring 34 is set on the release 32 below the biography cock wheel 6.Location can be obtained with flying after piece 5 disengagements run out of steam when passing cock wheel 6, the location can be lost behind the piece 5 combination acquisition power when passing cock wheel 6 and flying.States suffer restraints after passing cock wheel 6 like this and flying piece 5 disengagements, can only stop in the upright position, do not make again to be restricted when passing cock wheel 6 next moving.
5, other
Between 2 steel balls 24 in the through hole 29 in flying piece 5 spring 25 is set, its effect is to make the centrifugal motion of moment that flies piece 5 before strike obtain an acceleration, thereby assurance flies that enough contacts area, the possibility that the reliability of raising strike, reduction strike part and quilt strike part burst apart because of contact area is too small are arranged when piece 5 is hammered 22 strikes into shape with watt shape commentaries on classics on the biography cock wheel 6.Steel ball 24 is in arc groove 30 time, and under the effect of spring force, 30 pairs of steel balls 24 of arc groove are bigger at the resistance of centrifugal direction.Fly 24 motions of piece 5 drive steel balls and leave arc groove 30 before hitting beginning, steel ball 24 enters planar tracks, and resistance of motion moment reduction flies BOB(beginning of block) and quickens.The centrifugal motion distance that flies piece 5 is increased, fly piece 5 and the strike contact area that watt shape is changeed hammer 22, the reliability of action and element material intensity are protected thereby improve.
Course of action of the present utility model is as follows:
Click Action Button, drive motors 14 loop conducting rotary works.Loop conducting state continuous service is kept in the starting of secondary control unit 13 self-holding circuits simultaneously.Drive motors 14 drives accumulated energy flywheel 2, hits flywheel 4 rotations, accumulated energy flywheel 2 energy storage by power transmission shaft 1.Flying watt shape of piece 5 on centrifugal direction motion and moment acceleration strike biography cock wheel 6 when rotating speed reaches set point changes hammer 22, makes the rotating energy that flies piece 5 be converted into moment of torsion and passes to radial cams 7.Radial cams 7 bump draw keys 8, drive divided wheel 9 and output shaft 11 rotate about 20 ° jointly, and secondary control unit 13 cuts off electric motor loop.Mechanism clamp-ons draw key 8 in the positioning spline that endoporus 27 inwalls are provided with to desired location by the flywheel inertia motion, and draw key 8, divided wheel 9 and output shaft 11 stop operating, and secondary control unit 13 switches and puts in place.Radial cams 7 is rotated further to release 32 positions with passing cock wheel 6, and " L " type dropout plate 26 on the release 32 will fly piece 5 and push back and make it and pass cock wheel 6 to throw off.Radial cams 7 is with draw key 8 compression sets, and output shaft 11 is by locked, and the commentaries on classics hammer alignment pin 33 on the release 32 heads into watt shape that passes on the cock wheel 6 changes " V " connected in star 23 interior these states that keep that hammer 22 outer rims are provided with.So far, one of output shaft 11 rotation are set corner by locked.Mechanism finishes an action, i.e. a station.Secondary control unit 13 is in the required standby condition of next action after above-mentioned switching: two station mechanisms have only it to return the spinning movement loop to be activated; Then it continues rotation and returns the spinning movement loop all can be activated for three stations, multistation mechanism.
When accumulated energy flywheel 2, the kinergety of hitting flywheel 4 are that quality and rotating speed are when having certain surplus, only need self-locking nut 20 is regulated, adjust the pretension amount of back-moving spring 21, can the energy size when hitting regulate, that is mechanism's output angle speed regulated, to satisfy the required movement velocity of switch.
The utility model is mainly used in the actuating of combined electrical apparatus isolation, earthed switch.The needs that can adapt to various different rotary angles, different station, different electric pressure switch products.Only need to change divided wheel 9, adjust the action request that angle between its draw key installing hole 28 can satisfy the different rotary angle switch.Also can be required as requested, export other special angle.Satisfy two stations, three station multiple angles, 60 ° of multistation switch motion demands, and the demand of any multistation of other industry calibration output torque.The embodiment that the utility model output shaft rotation is 60 °, 60 ° of applicable two stations, 60 ° of combined electrical apparatuses of three stations also can satisfy the operating characteristics of 60 ° of two-way outlets of six stations compound combined electrical equipment.Moreover, only need to adjust the length of power transmission shaft 1, increase, subtract the sheet number of monolithic flywheel 31 in the accumulated energy flywheel 2, change the rotating energy of flywheel, can satisfy the needs of 110kV, 220kV, 550kV electric pressure switch different operating.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise break away from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1, a kind of combined electrical apparatus isolation earthing switch operating mechanism, the power transmission shaft (1) that is in transmission connection with drive motors (14) is in transmission connection by transmission device (15) and output shaft (11) concentric, power transmission shaft is connected by bearing and support activity, the secondary control unit (13) of drive motors (14) is connected with output shaft by quadric chain, it is characterized in that: described transmission device (15) is by cylindrical accumulated energy flywheel (2), truncated cone-shaped is hit flywheel (4), fly piece (5), pass cock wheel (6), radial cams (7), draw key (8), divided wheel (9), location-plate (10), release (32) is formed;
Accumulated energy flywheel (2) is fixedlyed connected with power transmission shaft (1) by driving key (3), hit flywheel (4) and be fixedly connected on the end of power transmission shaft near output shaft, one side of hitting the close output shaft of flywheel (4) is provided with a little round platform (16), radially be provided with a rectangular recess (17) in roundlet you portion, fly piece (5) place the rectangular recess intermediate solid drive shaft top and with the rectangular recess matched in clearance, the bottom of power transmission shaft is provided with back-moving spring (21), and flies the spring pull bar (19) that piece fixedlys connected and radially passes power transmission shaft successively, back-moving spring also passes through self-locking nut (20) and regulates the location;
Divided wheel (9), radial cams (7), biography cock wheel (6) are installed on the output shaft (11) from left to right; Passing cock wheel (6) is dumb-bell shape, the two ends that dumb-bell shape passes cock wheel are arranged with and pass 2 watts of shapes commentaries on classics hammers (22) that axially protrude that cock wheel is connected as a single entity to the right, the inner arc that watt shape is changeed hammer leaves the gap with the outer rim of little round platform, and watt shape is changeed an outer rim of hammering into shape and is axially arranged with " V " connected in star (23);
Release (32) by " L " type dropout plate (26), change hammer alignment pin (33), spring (34) accordingly with " V " connected in star and form, the flat board of " L " type dropout plate is fixed on the support base plate that passes under the cock wheel (6), the riser of " L " type dropout plate places watt shape to change hammer and hits between the flywheel, and change the right side of hammer with watt shape, the gap is left in the left side of hitting flywheel, it is highly consistent that the upper surface (D) of " L " type dropout plate riser and watt shape are changeed the horizontal line of hammering into shape of interior camber line two-end-point (D1); The outer rim that watt shape is changeed hammer leaves the gap with the dull and stereotyped upper surface of " L " type dropout plate, changes hammer alignment pin (33) and places under the output shaft in the flat board with " L " type dropout plate of " V " connected in star relevant position, and reset through spring (34);
Leave the gap between the right side of biography cock wheel (6) and the left side of little round platform, axially leave the gap between power transmission shaft and the output shaft, the left side and the radial cams (7) that pass cock wheel (6) are connected as a single entity by the end face cross key, pass cock wheel (6), radial cams (7) and output shaft (11) activity and cooperate;
The divided wheel (9) that is located at the output shaft output is alms bowl shape, divided wheel is fixedlyed connected with output shaft by driving key (12), divided wheel is sleeved on the outer rim of radial cams simultaneously and cooperates with radial cams is movable, the divided wheel cylindrical is installed in the endoporus (27) that location-plate (10) is provided with, and cooperates with endoporus is movable; Radial symmetric is provided with 2 and is used for the spacing axial location keyway of draw key (A, B) on the hole wall of endoporus (27), and location-plate is fixed on the support base plate; Radially be provided with a plurality of draw key installing holes (28) on the alms bowl body wall of divided wheel, draw key (8) places in the draw key installing hole.
2, combined electrical apparatus isolation earthing switch operating mechanism according to claim 1, it is characterized in that: the described piece (5) that flies is flying to be provided with a through hole (29) on the piece centrifugal motion vertical direction, 2 steel balls (24) are housed in the through hole, be provided with spring (25) between 2 steel balls, the both sides corresponding to through hole on the inwall of described little round platform (16) rectangular recess are respectively equipped with and the corresponding arc groove of steel ball (30).
3, combined electrical apparatus isolation earthing switch operating mechanism according to claim 1 is characterized in that: the hole count of described draw key installing hole (28) is 3, and the described output shaft anglec of rotation is 15 °-165 °.
4, combined electrical apparatus isolation earthing switch operating mechanism according to claim 3 is characterized in that: the angle between adjacent 2 center line of described draw key installing hole is respectively 150 °, 60 °, 150 °.
5, combined electrical apparatus isolation earthing switch operating mechanism according to claim 3 is characterized in that: the angle between adjacent 2 center line of described draw key installing hole is respectively 135 °, 90 °, 135 °.
6, combined electrical apparatus isolation earthing switch operating mechanism according to claim 3 is characterized in that: the angle between adjacent 2 center line of described draw key installing hole is respectively 120 °, 120 °, 120 °.
7, combined electrical apparatus isolation earthing switch operating mechanism according to claim 1 is characterized in that: the hole count of described draw key installing hole (28) is 2, and the described output shaft anglec of rotation is 15 °-165 °.
8, combined electrical apparatus isolation earthing switch operating mechanism according to claim 1 is characterized in that: the normal direction nominal dimension of described draw key (8) is consistent to the distance between the bottom portion of groove of radial cams to the inwall of the distance between the keyway bottom of positioning spline, endoporus with the radial cams outer rim.
9, combined electrical apparatus isolation earthing switch operating mechanism according to claim 1 is characterized in that: described radially outer edge that flies piece (5) and watt shape are changeed gap between the hammer inner arc and are slightly larger than steel ball from static stroke between when shifting out arc groove.
10, combined electrical apparatus isolation earthing switch operating mechanism according to claim 1 is characterized in that: described accumulated energy flywheel (2) combines for a plurality of monolithic flywheels (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200889477U CN201402753Y (en) | 2009-03-10 | 2009-03-10 | Isolating and earthing switch operating mechanism for combined electrical apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200889477U CN201402753Y (en) | 2009-03-10 | 2009-03-10 | Isolating and earthing switch operating mechanism for combined electrical apparatus |
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| CN201402753Y true CN201402753Y (en) | 2010-02-10 |
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| CN2009200889477U Expired - Fee Related CN201402753Y (en) | 2009-03-10 | 2009-03-10 | Isolating and earthing switch operating mechanism for combined electrical apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426661A (en) * | 2012-06-14 | 2013-12-04 | 洪蕾 | Bidirectional limiting and locking device of high-voltage electrical appliance operating mechanism |
| CN114512366A (en) * | 2022-03-08 | 2022-05-17 | 山东大学 | Buffering limiting device and operating mechanism of three-position isolating switch mechanism |
-
2009
- 2009-03-10 CN CN2009200889477U patent/CN201402753Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426661A (en) * | 2012-06-14 | 2013-12-04 | 洪蕾 | Bidirectional limiting and locking device of high-voltage electrical appliance operating mechanism |
| CN103426661B (en) * | 2012-06-14 | 2015-08-26 | 洪蕾 | A kind of bidirectionally limited and locking device of High-Voltage Electrical Appliances operating mechanism |
| CN114512366A (en) * | 2022-03-08 | 2022-05-17 | 山东大学 | Buffering limiting device and operating mechanism of three-position isolating switch mechanism |
| CN114512366B (en) * | 2022-03-08 | 2022-11-15 | 山东大学 | Buffer limiting device and operating mechanism of three-position isolating switch mechanism |
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Granted publication date: 20100210 Termination date: 20120310 |