CN101515518B - Combined electrical apparatus isolation earthing switch operating mechanism - Google Patents
Combined electrical apparatus isolation earthing switch operating mechanism Download PDFInfo
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- CN101515518B CN101515518B CN200910064198.9A CN200910064198A CN101515518B CN 101515518 B CN101515518 B CN 101515518B CN 200910064198 A CN200910064198 A CN 200910064198A CN 101515518 B CN101515518 B CN 101515518B
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Abstract
The invention relates to a combine electrical apparatus isolation earthing switch operating mechanism. A transmission shaft is provided with a cylindrical energy storage flywheel and a truncated cone-shaped striking flywheel which is internally provided with a flying block; an output shaft is provided with a transition wheel which is movably matched with the output shaft, a radial cam and a divided wheel which is fixedly connected with the output shaft; the transition wheel is fixedly connected with the radial cam by an end face D-pad; the flying block is intermittently connected with a till-shaped rotating hammer in a striking way; the radial cam drives the divided wheel and the output shaft by a loose key to rotate according to a stated angle; the low part of the transition wheel is provided with a release used for forcibly releasing the striking; the flying block is internally provided with a steel ball and a spring which can accelerate the flying block. The operating mechanism can realize different output angles of two work stations, three work stations, multistation 15 degrees-165 degrees and the like and is applied to the operation of 110kV, 220kV, and 550kV combined electrical apparatus isolation, earthing switches and isolation earthing combined switches, has the main advantages of high indexing accuracy, firm position locking, convenient regulation, low manufacturing cost, compact structure, low volume, extensive application, etc.
Description
Technical field
The present invention relates to a kind of switch operation mechanism, especially relate to a kind of combined electrical apparatus isolation earthing switch operating mechanism.
Background technology
The action request operating mechanism of combined electrical apparatus isolation, earthed switch must possess many-sided performance: the first have two two stations, three three stations or multiple be multistation operating position, and the service position of switch coupling; It two is to have certain moment of torsion, can guarantee the action of switch; It three is to have certain responsiveness, to meet switch kinetic characteristic; It four is that output angle is accurate, guarantees switch 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 by worm gear-endless screw transmission, to drive connecting lever to make spring-compressed-energy storage-discharged actuating of two station switches by motor.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 electrical dynamic formula quick mechanism is by feed screw nut or gear, radial cams and indexing mechanism transmission actuating switch by a heavy-duty motor.Mainly there is the defect of following several respects:
The one, complex structure, volume are large: performance is good, reliability is high, miniaturization is switch product international trend.Operating mechanism volume forms restriction to the Miniaturization Design of switch product greatly.Complex structure, mechanical drive train growing way must cause failure rate high, will directly threaten the reliability of switch product.The larger weight of volume is larger, and the transmission to mechanism, packing, transportation, preservation, assembling, debugging all can bring a lot of inconvenience.
The 2nd, power of motor is large: power of motor is greatly that loop current is large, directly causes the increasing of control loop electric elements power and wire, and production cost is improved.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 affect the anglec of rotation of mechanism, and the dispersiveness of mechanism's anglec of rotation is very large.Debugging to switch causes trouble, affects production efficiency and switch overall mass.
Summary of the invention
Simple in structure, volume is little, power is little, indexing accuracy the is high combined electrical apparatus isolation earthing switch operating mechanism that the object of the present invention is to provide that a kind of two stations, three stations or the isolation of Multistation electrical equipment, earthed switch use.
For achieving the above object, the present invention is by the following technical solutions:
Combined electrical apparatus isolation earthing switch operating mechanism of the present invention, the power transmission shaft being 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 linear quadratic 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 fixedly connected with power transmission shaft by driving key, hit flywheel and be fixedly connected on power transmission shaft one end near output shaft, hit flywheel and be provided with a little round platform near a side of output shaft, at roundlet you, portion is radially provided with a rectangular recess, fly piece be placed in the top of rectangular recess intermediate solid drive shaft and with rectangular recess matched in clearance, the bottom of power transmission shaft is provided with back-moving spring, and flies spring pull bar that piece is fixedly connected with radially successively through power transmission shaft, back-moving spring and regulate location by self-locking nut.
Divided wheel, radial cams, biography cock wheel are arranged on output shaft from left to right; Biography cock wheel is dumb-bell shape, and dumb-bell shape passes the two ends of cock wheel and is arranged with and passes 2 watts of shapes of axially protruding that cock wheel is connected as a single entity to the right and turn hammer, and watt shape turns the inner arc of hammer and the outer rim of little round platform leaves gap, and the outer rim that watt shape turns hammer is axially arranged with " V " connected in star.
Release by " L " type dropout plate, turn accordingly hammer alignment pin, spring with " V " connected in star and form, the flat board of " L " type dropout plate is fixed on the support base plate under biography cock wheel, the riser of " L " type dropout plate is placed in a watt shape and turns hammer and hit between flywheel, and with watt shape turn hammer right side, hit the left side of flywheel and leave gap, the upper surface of " L " type dropout plate riser is consistent with the horizontal line height of interior camber line two-end-point that watt shape turns hammer; Watt shape turns the outer rim of hammer and gap is left in the dull and stereotyped upper surface of " L " type dropout plate, and turn hammer alignment pin and be placed under output shaft in the flat board with " L " type dropout plate of " V " connected in star relevant position, and through spring reset.
Pass between the right side of cock wheel and the left side of little round platform and leave gap, axially leave gap between power transmission shaft and output shaft, the left side and the radial cams that pass cock wheel are connected as a single entity by end face cross key, pass cock wheel, radial cams and output shaft activity and coordinate.
The divided wheel that is located at output shaft output is alms bowl shape, divided wheel is fixedly connected with output shaft by driving key, divided wheel is sleeved on the outer rim of radial cams simultaneously and coordinates with radial cams is movable, divided wheel cylindrical is installed in the endoporus that location-plate is provided with, and coordinate with endoporus is movable, location-plate is fixed on support base plate; On the alms bowl body wall of divided wheel, be radially provided with multiple draw key installing holes, draw key is placed in 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 in piece centrifugal motion vertical direction, 2 steel balls are housed in through hole, between 2 steel balls, be provided with spring, on the inwall of the rectangular recess of described little round platform, corresponding to the both sides of through hole, be 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 is three, while being work as two stations or three works, output shaft moves the anglec of rotation at every turn can be arbitrarily angled adjustment of 15 °-165 °.
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 30 °, 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, during as two stations, three stations or multistation, output shaft moves at every turn and rotates an embodiment of 60 °, 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 move at every turn the anglec of rotation be can be between 15 °-165 ° arbitrarily angled adjustment.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, the normal direction nominal dimension of described draw key and radial cams outer rim are 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.Ensureing motion quality of fit, guarantee the accuracy of calibration.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, the described radially outer edge that flies piece and watt shape turn the gap of hammer between inner arc and are slightly larger than steel ball from static stroke between when shifting out arc groove.To obtain acceleration before strike.
Combinations thereof electrical equipment isolation earthing switch operating mechanism, described accumulated energy flywheel is that multiple monolithic flywheels form.Its objective is the energy size of adjusting accumulated energy flywheel according to the size of switching manipulation merit.
The invention has the beneficial effects as follows: the present invention adopt accumulated energy flywheel drive hit flywheel will fly piece throw away hit pass cock wheel make to pass cock wheel rotate, under the effect of release, make to pass the each Rotate 180 degree of cock wheel.Passing cock wheel drives radial cams to rotate, radial cams drives divided wheel and output shaft to rotate a certain angle according to the layout of draw key installing hole on divided wheel by draw key, divided wheel, output shaft are limited, and radial cams continuous rotation is by divided wheel, output shaft locking.Compact conformation, scientific and reasonable.The design that flies piece accelerating structure makes to fly before piece hits to obtain large acceleration, and increase strike watt shape turns the area of hammer, obtains good strike effect.More adopt release can avoid passing cock wheel turns or turns round.Concrete beneficial effect is as follows:
1, indexing accuracy is high: wedge type calibration, positioner that the present invention adopts draw key to combine with divided wheel, Theoretical Design error is ± 0.25 °.Indexing accuracy is high, and locking position is firm.Meanwhile, on divided wheel, draw key is by adjusting the angle between draw key installing hole, and the anglec of rotation that can make its output shaft is arbitrarily angled adjustment of 15 °-165 °.Make its adjustment convenient, application more extensive.
2, easy to adjust: the present invention only need regulate self-locking nut, i.e. adjustable mechanism responsiveness.Switch integral installation is joined, debugs, tested and bring convenience.
3, loop current is little: electric motor loop electric current of the present invention only has 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, transmission link of the present invention is few, compact conformation, profile are little.Main movement number of packages amount be its 1/2nd, overall volume be its 30～40%, save material, for the Miniaturization Design of switch provides optimization selection scheme.
5, use extensively: the present invention can be applicable to 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 easily the actuating of similar action request.Also applicable to the actuating of on-load switch and cut-offfing of circuit breaker load current.
The present invention drives accumulated energy flywheel rotation energy storage by drive motors.Under the effect of centrifugal force, the piece that flies hitting on flywheel moves along flywheel centrifugal direction, and moment hits and passes cock wheel, release flywheel rotating energy, makes output shaft do rapid circular movement.The positioner being comprised of divided wheel, draw key, location-plate makes output shaft determine angular turn, accurately exports torque and angle the latched position of designing requirement.Can realize the different output angles such as 30 °, 45 °, 60 °, 85 ° of two stations, three stations, multistation.Be applied to the operation of 110kV, 220kV, the isolation of 550kV combined electrical apparatus, earthed switch and isolation ground connection unit switch.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating below, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be passed through specification below, claims, and in accompanying drawing, specifically noted structure realizes and obtains.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the schematic top plan view of structure of the present invention.
Fig. 2 is the H-H cross-sectional schematic of Fig. 1
Fig. 3 is that the E-E of Fig. 2 analyses and observe rough schematic view
Fig. 4 is that the present invention flies piece and analyses and observe rough schematic view after flying out
Fig. 5 is the F-F cross-sectional schematic of Fig. 2
Fig. 6 is that the present invention flies steel ball in the piece cross-sectional schematic while departing from ball groove
Fig. 7 is the G-G cutaway view of Fig. 2
Fig. 8 is output shaft position relationship profile between radial cams, divided wheel, draw key and location-plate while turning clockwise a station on the basis of Fig. 7
Fig. 9 is output shaft position relationship profile between radial cams, divided wheel, draw key and location-plate while turning clockwise again a station on the basis of Fig. 8
Position relationship profile when Figure 10 is the present invention's two stations or 30 ° of centre positions that rotate embodiment of three station output shafts between radial cams, divided wheel, draw key and location-plate
Figure 11 is the profile that the present invention's two stations or 30 ° of rotation embodiment draw key installing holes of three station output shafts distribute on divided wheel
Figure 12 is the profile that the present invention's two stations or 45 ° of rotation embodiment draw key installing holes of three station output shafts distribute on divided wheel
Figure 13 is the profile that the present invention's two stations, three stations or 60 ° of rotation embodiment draw key installing holes of multiple station output shaft distribute on divided wheel
Figure 14 is the profile that 82 ° of rotation embodiment draw key installing holes of the present invention's two station output shaft distribute on divided wheel
Mark in 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, 8-3-draw key 9-divided wheel 10-location-plate 11-output shaft 12-driving key 13-linear quadratic control unit 22-watt of shape of 14-drive motors 15-transmission device 16-roundlet platform 17-rectangular recess 19-spring pull bar 20-self-locking nut 21-back-moving spring turns 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 turns hammer alignment pin 34-spring A, the upper surface D1-watt shape that B-positioning spline C-flies outer rim D-" L " the type dropout plate riser of piece turns the horizontal line of interior camber line two-end-point of hammer
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 7, Fig. 8, Fig. 9, Figure 10, combined electrical apparatus isolation earthing switch operating mechanism of the present invention, the power transmission shaft 1 being 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 linear quadratic 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 fixedly connected with power transmission shaft 1 by driving key 3, hit flywheel 4 and be fixedly connected on power transmission shaft one end near output shaft, hit flywheel 4 and be provided with a roundlet platform 16 near a side of output shaft, in roundlet you portion, be radially provided with a rectangular recess 17, fly piece 5 be placed in the top of rectangular recess intermediate solid drive shaft and with 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 is fixedly connected with radially successively through power transmission shaft, back-moving spring and regulate location by self-locking nut 20.
Divided wheel 9, radial cams 7, biography cock wheel 6 are arranged on output shaft 11 from left to right; Passing cock wheel 6 is dumb-bell shape, dumb-bell shape passes the two ends of cock wheel and is arranged with and passes 2 watts of shapes of axially protruding that cock wheel is connected as a single entity to the right and turn hammer 22, watt shape turns the inner arc of hammer and the outer rim of little round platform leaves gap, and the outer rim that watt shape turns hammer is axially arranged with " V " connected in star 23.
Pass between the right side of cock wheel 6 and the left side of little round platform and leave gap, between power transmission shaft and output shaft, axially leave gap, the left side and the radial cams 7 that pass cock wheel 6 are connected as a single entity by end face cross key, pass cock wheel 6, radial cams 7 and output shaft 11 activities and coordinate.The divided wheel 9 that is located at output shaft output is alms bowl shape, divided wheel is fixedly connected with output shaft by driving key 12, divided wheel is sleeved on the outer rim of radial cams simultaneously and coordinates with radial cams is movable, divided wheel cylindrical is installed in the endoporus 27 that location-plate 10 is provided with, and coordinate with endoporus is movable, on the hole wall of endoporus, radial symmetric is provided with 2 for axial location keyway A, the B spacing with draw key, and location-plate is fixed on support base plate; On the alms bowl body wall of divided wheel, be radially provided with multiple draw key installing holes 28, draw key 8 is placed in draw key installing hole.
Fly piece 5 and flying in piece centrifugal motion vertical direction, to be provided with a through hole 29,2 steel balls 24 are housed in through hole, between 2 steel balls, be provided with spring 25, on the inwall of described roundlet platform rectangular recess, corresponding to the both sides of through hole, be respectively equipped with and the corresponding arc groove 30 of steel ball.The radially outer edge that flies piece 5 is slightly larger than steel ball 24 from the relative static stroke to moving out between ball groove 30, to obtain acceleration before strike with the gap between watt set hammer body 22 inner arcs.
Accumulated energy flywheel 2 is multiple monolithic flywheel compositions, its objective is the energy of the size adjustment flywheel of switching manipulation merit.
As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, the normal direction nominal dimension of draw key 8 and radial cams 7 outer rims are 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.
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 adjustment.
Embodiment 1
As shown in figure 11, during as two stations or three stations, output shaft 11 rotates an embodiment of 30 °, and the angle between the center line that draw key installing hole 28 is adjacent 2 is respectively 150 °, 60 °, 150 °.
Embodiment 2
As shown in figure 12, during as two stations or three stations, output shaft rotates an embodiment of 45 °, and the angle between the center line that draw key installing hole 28 is adjacent 2 is respectively 135 °, 90 °, 135 °.
Embodiment 3
As shown in figure 13, during as two stations, three stations or multistation, output shaft 11 rotates an embodiment of 60 °, and the angle between the center line that draw key installing hole 28 is adjacent 2 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, output shaft 11 anglecs of rotation be can be between 15 °-165 ° arbitrarily angled adjustment.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, the operation principle of mechanism of the present invention is as follows:
1, mechanism's energy source
The present invention is made accumulated energy flywheel 2, strike flywheel 4 and flies piece 5 to rotate around the axial line of power transmission shaft 1 by gear, power transmission shaft 1 by a small-power drive motors 14.Because accumulated energy flywheel 2, strike flywheel 4 have certain quality and rotary speed, i.e. certain rotating energy, for the action of mechanism provides motion-promotion force.
2, mechanism's torque output principle
Hit flywheel 4 rotations initial, when speed does not reach designing requirement, act on the pulling force that the centrifugal force flying on piece 5 is less than effect back-moving spring 21 thereon, fly 5 of pieces and do synchronous rotary motion with hitting flywheel 4.Along with the raising of accumulated energy flywheel 2, strike flywheel 4 rotating speeds, when acting on the centrifugal force flying on piece 5 and be greater than the pulling force of back-moving spring 21, fly piece 5 rectangular recess 17 in roundlet platform 16 is moved to centrifugal direction, tangentially hit biography cock wheel 6 on watt shapes and turn the side of hammering 22 into shape.The rotating energy of accumulated energy flywheel 2 and strike flywheel 4 is passed to cock wheel 6 and be converted into moment of torsion.Owing to passing cock wheel 6 and radial cams 7, by end face cross key, be connected as a single entity, radial cams 7, draw key 8 drive divided wheel 9 that output shaft 11 is rotatablely moved.Output shaft 11 is connected with the switch of institute's actuating, and the moment of torsion of setting the most at last imports switch power shaft into makes switch quick acting.
3, mechanism's calibration output principle
The corner output of determining of mechanism realizes by following two parts:
The one, by the design of release 32, make to fly piece 5 and hit and pass disengagement automatically after the common Rotate 180 of cock wheel 6 °.In release 32 the upper plane D of " L " type dropout plate 26 risers with pass cock wheel 6 on watt shapes and turn hammer 22 on watt shapes to turn the height of the horizontal line D1 of interior camber line two-end-point of hammer consistent.The D face of release flies compressing in the outer rim C face of piece 5, makes the many height of its Speed of Reaction Wheels all can not hit and pass cock wheel 6 at release 32 installation sides.Its object is to fly piece 5 at every turn the strike that passes cock wheel 6 must, from the symmetrical side of release, finish, and biography cock wheel 6 only be rotated 180 ° at release installation side at every turn.The 2nd, by the design of radial cams 7, draw key 8, divided wheel 9, location-plate 10, make output shaft 11 determine on request angular turn at every turn.Pass cock wheel 6 and be connected by end face cross key with radial cams 7, the each action of radial cams 7 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 shock draw key 8-2, drive draw key 8-1,8-2,8-3, divided wheel 9 to rotate, 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, make radial cams 7, draw key 8-1,8-2,8-3 and divided wheel 9, the synchronous motion clockwise of output shaft 11 simultaneously.When draw key 8-2 moves to positioning spline B, the protrusion inclined-plane of radial cams 7 is got into draw key 8-2 in positioning spline B.Draw key 8-1,8-2,8-3, divided wheel 9, output shaft 11 synchronously turn over 60 ° clockwise to be stopped.Radial cams 7 continue dextrorotation go to 180 ° stop and by draw key 8-2 compression set in positioning spline B.Realize output shaft 11 turn clockwise 60 ° and locking.In like manner, if action next time continues to turn clockwise by drive draw key 8-3 to positioning spline A.If be rotated counterclockwise, draw key 8-1 is brought back in positioning spline A.
Like this, mechanism passes cock wheel 6, radial cams 7 Rotate 180s ° at every turn while moving, and divided wheel 9, output shaft 11 rotate 60 °.And no matter two stations, three stations, five stations, six stations all can meet.
4, mechanism position locking principle
Because radial cams 7 has continued to rotate certain angle after divided wheel 9 stop motions, by the projection of radial cams 7 by 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 in the positioning spline orientation that is pressed into draw key 8, output shaft 11 can not active movement, by locked.
In order to guarantee that radial cams 7 can push down the draw key 8 of being got in positioning spline after each release, radial cams 7 at every turn can only Rotate 180 °.A movable locating device that turns hammer alignment pin 33 and spring 34 is set on the release 32 below biography cock wheel 6.When passing cock wheel 6 and flying after piece 5 disengagements run out of steam, location can be obtained, when passing cock wheel 6 and flying piece 5, after obtaining power, location can be lost.After passing like this cock wheel 6 and flying piece 5 disengagements, state suffers restraints, and can only stop in upright position, while not making again to pass cock wheel motion 6 next time, is restricted.
5, other
Between 2 steel balls 24 in the through hole 29 flying in piece 5, spring 25 is set, its effect is that the centrifugal motion of moment that makes to fly piece 5 before strike obtains an acceleration, thereby guarantee to fly piece 5, turn when hammer 22 hits and have enough contacts area with watt shape on biography cock wheel 6, improve reliability, the reduction of strike and hit part and hit part the possibility of bursting apart because contact area is too small.Steel ball 24 is when arc groove 30 is interior, and under the effect of spring force, arc groove 30 is larger at the resistance of centrifugal direction to steel ball 24.Before strike starts, fly piece 5 and drive steel ball 24 motions to leave arc groove 30, steel ball 24 enters planar tracks, and resistance of motion moment reduces, and flies BOB(beginning of block) and accelerates.In same equal time, make the centrifugal motion distance that flies piece 5 increase, thereby raising flies piece 5, turn with watt shape the strike contact area of hammering 22 into shape, reliability and the element material intensity of action are protected.
Course of action of the present invention is as follows:
Click Action Button, drive motors 14 loop conducting rotary works.Linear quadratic control unit 13 self-holding circuit startings simultaneously, maintain loop conducting state continuous service.Drive motors 14 drives accumulated energy flywheel 2, strike flywheel 4 to rotate by power transmission shaft 1, accumulated energy flywheel 2 energy storage.When rotating speed reaches set point, fly piece 5 and to centrifugal direction motion moment, accelerate to hit watt shape passing on cock wheel 6 and turn hammer 22, the rotating energy that makes to fly piece 5 is converted into moment of torsion and passes to radial cams 7.Radial cams 7 clashes into draw key 8, drives divided wheel 9 and output shaft 11 jointly to rotate approximately 20 °, and linear quadratic 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 flywheel inertia motion, and draw key 8, divided wheel 9 and output shaft 11 stop operating, and linear quadratic 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 release 32 will fly piece 5 and push back and make it and pass cock wheel 6 and throw off.Radial cams 7 is draw key 8 compression sets, and output shaft 11 is by locked, and the turning hammer alignment pin 33 on release 32 heads into watt shape passing on cock wheel 6 and turns " V " connected in star 23 these states of interior maintenance that hammer 22 outer rims are provided with.So far, output shaft 11 rotates a setting corner by locked.Mechanism completes an action, i.e. a station.Linear quadratic control unit 13 moves required standby condition in next after above-mentioned switching: two station mechanisms only have it to return to spinning movement loop to be activated; It continues rotation and returns to spinning movement loop all can be activated for three stations, multistation mechanism.
When accumulated energy flywheel 2, to hit the kinergety of flywheel 4 be that quality and rotating speed are while having certain surplus, only need regulate self-locking nut 20, adjust the pretension amount of back-moving spring 21, can to hit time energy size regulate, that is mechanism's Output speed is regulated, to meet the required movement velocity of switch.
The present invention is mainly used in the actuating of combined electrical apparatus isolation, earthed switch.Can adapt to the needs of various different rotary angles, different station, different electric pressure switch products.Only need to change divided wheel 9, adjust angle between its draw key installing hole 28 and can meet the action request of different rotary angle switch.Also can be required as requested, export other special angle.Meet 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 output shaft of the present invention rotation is 60 °, 60 ° of applicable two stations, 60 ° of combined electrical apparatuses of three stations, also can meet the operating characteristics of 60 ° of two-way outlet compound combined electrical equipments of six stations.Moreover, only need to adjust the length of power transmission shaft 1, increase, subtract the sheet number of monolithic flywheel 31 in accumulated energy flywheel 2, change the rotating energy of flywheel, can meet the needs of 110kV, 220kV, 550kV electric pressure switch different operating.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. a combined electrical apparatus isolation earthing switch operating mechanism, the power transmission shaft (1) being 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 linear quadratic 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), cam (7), draw key (8), divided wheel (9), location-plate (10), release (32) composition,
Accumulated energy flywheel (2) is fixedly connected with power transmission shaft (1) by driving key (3), hit flywheel (4) and be fixedly connected on power transmission shaft one end near output shaft, hit flywheel (4) and be provided with a little round platform (16) near a side of output shaft, in roundlet you portion, be radially provided with a rectangular recess (17), fly piece (5) be placed in the top of rectangular recess intermediate solid drive shaft and with rectangular recess matched in clearance, the bottom of power transmission shaft is provided with back-moving spring (21), with fly spring pull bar (19) that piece is fixedly connected with radially successively through power transmission shaft, back-moving spring also regulates location by self-locking nut (20),
Divided wheel (9), cam (7), biography cock wheel (6) are arranged on output shaft (11) from left to right; Passing cock wheel (6) is dumb-bell shape, dumb-bell shape passes the two ends of cock wheel and is arranged with and passes 2 watts of shapes of axially protruding that cock wheel is connected as a single entity to the right and turn hammer (22), watt shape turns the inner arc of hammer and the outer rim of little round platform leaves gap, and the outer rim that watt shape turns hammer is axially arranged with " V " connected in star (23);
Release (32) by " L " type dropout plate (26), turn accordingly hammer alignment pin (33), spring (34) with " V " connected in star and form, the flat board of " L " type dropout plate is fixed on the support base plate under biography cock wheel (6), the riser of " L " type dropout plate is placed in a watt shape and turns hammer and hit between flywheel, and with watt shape turn hammer right side, hit the left side of flywheel and leave gap, the upper surface (D) of " L " type dropout plate riser is highly consistent with the horizontal line of interior camber line two-end-point (D1) that watt shape turns hammer; Watt shape turns the outer rim of hammer and gap is left in the dull and stereotyped upper surface of " L " type dropout plate, turn hammer alignment pin (33) and be placed under output shaft in the flat board with " L " type dropout plate of arc groove relevant position, and diameter spring (34) resets;
Pass between the right side and the left side of little round platform of cock wheel (6), between power transmission shaft and output shaft, leave gap, the left side and the cam (7) that pass cock wheel (6) are connected as a single entity by end face cross key, pass cock wheel (6), cam (7) and output shaft (11) activity and coordinate;
The divided wheel (9) that is located at output shaft output is alms bowl shape, divided wheel is fixedly connected with output shaft by driving key (12), divided wheel is sleeved on the outer rim of cam simultaneously and coordinates with cam is movable, divided wheel cylindrical is installed in the endoporus (27) that location-plate (10) is provided with, and coordinates with endoporus is movable; On inwall through axial line vertical line in endoporus, be arranged with upper and lower 2 for the positioning spline spacing with draw key (A, B), location-plate is fixed on support base plate, on the alms bowl body wall of divided wheel, normal direction is provided with multiple draw key installing holes (28), and draw key (8) is placed in draw key installing hole;
The radial dimension of described draw key (8) and cam outer rim are consistent to the distance between the bottom portion of groove of cam to the inwall of the distance between the keyway bottom of positioning spline, endoporus; The described radially outer edge that flies piece (5) and watt shape turn the gap of hammer between inner arc and are slightly larger than steel ball from static stroke between when shifting out arc groove.
2. combined electrical apparatus isolation earthing switch operating mechanism according to claim 1, it is characterized in that: described piece (5) inherence that flies flies piece centrifugal motion vertical direction and is provided with a through hole (29), 2 steel balls (24) are housed in through hole, between 2 steel balls, be provided with spring (25), on the inwall of the rectangular recess of the described upper little round platform of strike flywheel (4), corresponding to the both sides of through hole, be 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 the center line that described draw key installing hole is adjacent 2 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 the center line that described draw key installing hole is adjacent 2 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 the center line that described draw key installing hole is adjacent 2 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: described accumulated energy flywheel (2) combines for multiple monolithic flywheels (31).
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910064198.9A CN101515518B (en) | 2009-02-14 | 2009-02-14 | Combined electrical apparatus isolation earthing switch operating mechanism |
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| CN200910064198.9A CN101515518B (en) | 2009-02-14 | 2009-02-14 | Combined electrical apparatus isolation earthing switch operating mechanism |
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| CN101515518B true CN101515518B (en) | 2014-04-16 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101989733B (en) * | 2010-10-22 | 2012-10-10 | 中国西电电气股份有限公司 | Composite high-voltage combined electric appliance |
| CN102157307B (en) * | 2010-12-19 | 2014-07-09 | 浙江富隆电气有限公司 | Flywheel-type motor driven unidirectional drive mechanism |
| CN103354183B (en) * | 2013-06-26 | 2015-07-15 | 国家电网公司 | Operating mechanism for arc fault limiting device |
| CN106704515B (en) * | 2017-01-04 | 2023-09-29 | 平高集团有限公司 | Power output device and spring operating mechanism using same |
| CN108573826A (en) * | 2018-06-11 | 2018-09-25 | 河南森源电气股份有限公司 | A kind of disconnecting switch and its cam pack |
| CN111276348B (en) * | 2019-12-31 | 2022-07-05 | 平高集团有限公司 | Motor operating mechanism, isolation grounding switch and isolation grounding switch control method |
| CN110993419A (en) * | 2019-12-31 | 2020-04-10 | 任广民 | Six-station low-voltage combination switch |
| CN113327804A (en) * | 2021-05-26 | 2021-08-31 | 许继集团有限公司 | Isolation operation mechanism for column |
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| CN201057622Y (en) * | 2007-08-10 | 2008-05-07 | 湖南天鹰高压开关电器有限公司 | Isolating/grounding switch of totally enclosed combined electrical apparatus |
| CN201163577Y (en) * | 2007-12-29 | 2008-12-10 | 山东泰开隔离开关有限公司 | Two-stage worm and gear speed reduction motor operation mechanism |
| CN201171011Y (en) * | 2008-03-06 | 2008-12-24 | 江苏省如高高压电器有限公司 | Mechanical interlock for isolation switch and ground switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4264094B2 (en) * | 2006-05-01 | 2009-05-13 | 株式会社三英社製作所 | Short-circuit grounding tool |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057622Y (en) * | 2007-08-10 | 2008-05-07 | 湖南天鹰高压开关电器有限公司 | Isolating/grounding switch of totally enclosed combined electrical apparatus |
| CN201163577Y (en) * | 2007-12-29 | 2008-12-10 | 山东泰开隔离开关有限公司 | Two-stage worm and gear speed reduction motor operation mechanism |
| CN201171011Y (en) * | 2008-03-06 | 2008-12-24 | 江苏省如高高压电器有限公司 | Mechanical interlock for isolation switch and ground switch |
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