CN203941823U - A kind of manual and electric Integral earthing switch - Google Patents
A kind of manual and electric Integral earthing switch Download PDFInfo
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- CN203941823U CN203941823U CN201320723179.4U CN201320723179U CN203941823U CN 203941823 U CN203941823 U CN 203941823U CN 201320723179 U CN201320723179 U CN 201320723179U CN 203941823 U CN203941823 U CN 203941823U
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Abstract
The utility model belongs to switching technique field, discloses a kind of manual and electric Integral earthing switch, comprises that earthed switch main body, motor-operating mechanism, motor close down controlling organization; Motor-operating mechanism comprises motor and clutch transmission, clutch transmission comprises driving gear, driven gear, drive plate, the spring coil that concentric sets gradually, between driven gear and drive plate, establish Compress Spring, driven gear wheel is established convex-concave fit structure with drive plate opposite face, the opposite face of drive plate and driving gear is set as right cone tank, in every pair of cone tank, is equipped with steel ball; Drive plate periphery is established annular groove, and the circular ring structure cover of spring coil one end fits on annular groove, and the other end is enclosed within on an axle; Motor is closed down controlling organization and is comprised two travel switches and two trigger units, and described trigger unit is provided with the face that compresses being made up of one section of spiral camber.The utility model is simple in structure, and overall operation is functional, and reliability is high, long service life.
Description
Technical field
The utility model belongs to switching technique field, relates in particular to electric switch technology, specifically a kind of earthed switch for electric switch equipment.
Background technology
Earthed switch is a kind of for by the mechanical device of equipment or line-to-ground, and in exceptional condition, during as short circuit, the abnormal current of carrying regulation at the appointed time, so that in the time of equipment or line maintenance, ensures maintainer's safety.Earthed switch is more common in the controller switching equipments such as High-low voltage switch cabinet, mainly comprises fixed contact and movable touch knife, one and equipment connection in both, another one ground connection.For common switch cubicle, each three of the dynamic and static contact of earthed switch, three fixed contacts connect respectively end of incoming cables A, B, the C bus of switch cubicle, and three movable touch knifes and fixed contact match one by one, arrange ground connection by line.
Described fixed contact is fixed on base by insulator, and described movable touch knife is assemblied on a main shaft, and with the coaxial connecting lever that is fixedly equipped with of movable touch knife, the movable end of connecting lever and movable touch knife stage clip (cylindrical compression spring of two ends door assembly with hinge and glass in right hand and left formula connector) connector is hinged.The compression critical point of connecting lever and stage clip is between movable touch knife combined floodgate and gate-dividing state.Under gate-dividing state, stage clip acts on moment of torsion and the combined floodgate opposite direction on main shaft, and this action torque coordinates movable touch knife is maintained under gate-dividing state with position-limit mechanism.Main shaft is applied to external force, and to combined floodgate direction rotation main shaft, the energy storage of connecting lever compression press spring, faces Jie's point when what turn over stage clip, and stage clip acts on the torque conversion direction on main shaft, releases energy rapidly, and promotes connecting lever and assist combined floodgate external force to drive movable touch knife rapid closing; Otherwise under "on" position, it is identical with combined floodgate direction that stage clip acts on moment of torsion on main shaft, this action torque coordinates movable touch knife is maintained under "on" position with position-limit mechanism.Main shaft is applied to external force, make it to separating brake direction rotation, the energy storage of connecting lever compression press spring, face Jie's point when what turn over stage clip, the torque that stage clip acts on main shaft is changed direction again, stage clip promotes connecting lever and assists separating brake external force further to drive movable touch knife to rotate to separating brake direction, until limited mechanism stops, separating brake process completes.
Along with the continuous intellectuality of the controller switching equipments such as switch cubicle, the remote operation of earthed switch becomes common requirements.The remote operation that is grounded switch is not so difficult, and the simplest processing mode is, for connecing switch, controlled motor-operating mechanism is set.The motor that drives grounding switch main shaft to rotate by transmission mechanism is set in earthed switch, completes combined floodgate and the separating brake of earthed switch, then by the rotating of Long-distance Control motor, can be grounded the remote operation of switch.
Coordinate simple mechanical transmission mechanism to drive grounding switch main shaft to rotate by motor, to realize the electronic divide-shut brake of movable touch knife, not so difficult realization.Consider the problem that simple electric operating formula earthed switch cannot be worked the in the situation that of inevitable power-off, be obviously very important for electrodynamic type connects switch configuration manual operation function.
At present, prior art has disclosed the multiple switch that is grounded and has possessed electronic and scheme manual operation function simultaneously, as the disclosed earthed switch of patent or operating mechanisms such as the patent No.s 200620109339.6,200810182723.2,201220474160,201220013812.
The operating mechanism of existing electric ground switch, has realized preferably earthed switch by introducing clutch and has had both manually and electric operating function.But still Shortcomings part.
The motor-operating mechanism of the earthed switch 1, having, loosely organized, take up room large, increase the overall dimensions of earthed switch.Earthed switch is installed in the controller switching equipments such as switch cubicle, be subject to the limitation of distribution equipment box, larger earthed switch, be unfavorable for the miniaturization of cabinet, and the structure of earthed switch complexity is brought restriction to inside switch cabinet structural design, affect the optimization of cabinet inner structure, as the patent No. disclosed earthed switch of patent that is 200620109339.6.
Although the operating mechanism structure relative compact 2, having, takes up room little, complex structure, parts are many, not only increase assembly difficulty and cost, and increased the chance of failure of operating mechanism, as the patent No. disclosed operating mechanism of patent that is 201220474160.
Although the compact conformation 3, having, parts are few, and assembly difficulty is larger, and reliability is low, part strength is required high, as the patent No. disclosed operating mechanism of patent that is 201220013812.
And, existing electric ground switch ubiquity, motor-operating mechanism is unreliable, and the problem that useful life is short generally cannot be by 2000 divide-shut brake tests repeatedly.When use, need to carry out periodic maintenance to earthed switch, otherwise by phenomenons such as frequency generator stalls, finally damage motor or transmission mechanism.
Summary of the invention
The purpose of this utility model is, for existing electronic ground connection Kaitian's above shortcomings and problem, the more rational operating mechanism of a kind of structure is not only provided, also proposes a kind of effective raising earthed switch global reliability and the solution in useful life.
For achieving the above object, the present invention proposes a kind of manual and electric Integral earthing switch for controller switching equipment, comprise that earthed switch main body, motor-operating mechanism and motor close down controlling organization, described switch main body comprises three fixed contacts and three movable touch knifes, and three movable touch knifes and fixed contact match one by one.
Described fixed contact is fixed on base by insulator, described movable touch knife is fixedly assemblied on a main shaft, main shaft is rotatably on the supported on both sides plate that is assemblied in base, with the coaxially relative connecting lever that is fixedly equipped with of movable touch knife, one end connector of the movable end of connecting lever and cylindrical compression spring is hinged, and the other end connector of cylindrical compression spring is hinged on base.
Described motor-operating mechanism comprises motor and the clutch transmission being connected with motor, described clutch transmission comprises the driving gear engaging with reducing gear gear of output end that concentric sets gradually, one drive plate axially slidably arranging, a driven gear engaging with the mainshaft gear being assemblied on grounding switch main shaft, between described driven gear and drive plate, be provided with Compress Spring, driven gear wheel is provided with convex-concave fit structure with drive plate opposite face, the opposite face of drive plate and driving gear is provided with paired cone tank, in every pair of cone tank, be equipped with steel ball.Drive plate periphery is provided with annular groove, and clutch transmission also comprises a spring coil, and described spring coil is semi-closed structure, and its one end is the circular ring structure with opening, and cover fits on annular groove, and with the mutual friction of ring groove surface phase, the other end is enclosed within on an axle.
Described motor is closed down controlling organization and is comprised that being respectively used to separating brake closes down motor and close a floodgate two travel switches of closing down motor and two trigger units that are respectively used to touch two travel switches, described trigger unit is provided with that (spiral camber refers to bus spin around axle center motion and the face that forms by one section of spiral camber, bus length is the width of spiral camber, as motion process bus length change, the width of spiral camber is unequal) form the face that compresses.
In motor-operating mechanism of the present utility model, clutch transmission is only made up of two gears and a drive plate, and parts are few, and three's concentric arranges, and mutually axially stacks together, and structure is very compact.Under the front topic that three meets the demands in intensity, can design very thinly, with gear thickness 15mm, drive plate thickness 10mm is example, and the width of whole clutch transmission can be controlled in 40mm.Take up room considerably less.
Convex-concave fit structure between described driven gear and biography dish, can be that groove structure is established on any one surface in both, the bulge-structure matching with groove is established on another one surface, in the quantity of convex-concave fit structure preferably (comprising two groups) more than two, all arranges at circumferencial direction.Can make like this both stress equalizations in transmission process.Similarly, the quantity of steel ball also preferably two above (comprising two), and same circumferencial direction is all arranged.
The mode that the effect of described spring coil is to rub applies a limited resistance to drive plate, in drive plate and not interlock of driven gear, and before driving gear and drive plate are compacted between the two, make drive plate asynchronous with respect to driving gear, to force steel ball to cone tank outer rolling, promote drive plate close to driven gear.
The advantage of spring coil is: 1, simple in structure, only processed by individual wire, and its assembling do not need to coordinate other fixing with part, and directly cover is joined on existing parts.2, adopt semi-closed structure, easy to assembly, friction dynamics is controlled, removes both hands adjustable.
The described spring coil other end is enclosed within on an axle, only for restraining spring circle does not rotate with drive plate, be set with and do not fix, for fear of being the special retaining element of increase or increasing fixed structure on part, or be in particular the fixing of spring coil and design other application specific architecture, increase the complexity of mechanism.Directly be sleeved on the existing axle in drive plate side, for example, can be sleeved on reducing gear output shaft.Certainly, can also establish a minor axis, short column etc. and be exclusively used in fixing spring circle.
Close down in controlling organization at motor, one section of spiral camber on trigger unit, can comprise two kinds of specific constructive form:
The first form is, one section of snail curved surface taking trigger unit axis of rotation as axle center, that is, and the snail line of the bus parallel with trigger unit axis of rotation along one section taking trigger unit axis of rotation as the axle center one section of spiral camber forming of taking exercises.
For example, trigger unit is disk-like structure, and at least one section of outer margin contour of disk-like structure is snail curved-surface structure.
The second form is, one section of Cylindrical spiral curved surface taking trigger unit axis of rotation as axle center, that is, and perpendicular to the bus of trigger unit axis of rotation along one section of circular helix taking trigger unit axis of rotation as axle center surface of revolution forming of taking exercises.For example, trigger unit is the structure that an axial side is provided with cylinder surface of revolution.
In the time adopting the spiral camber of the first structure, described trigger unit can be a disk shaped part, and axis of rotation is perpendicular to card, and spiral camber is positioned at its outer rim, the width that the thickness of disk shaped part is spiral camber.Described travel switch is arranged on the radial outside of disk shaped part, this set structure relative compact, entirety occupies little space, and as trigger unit and travel switch are all arranged on earthed switch side, is conducive to control laterally (along the direction of main shaft) width of earthed switch.
In the time adopting the spiral camber of the second structure, described trigger unit main part can be also a disk shaped part, and axis of rotation is perpendicular to card, and spiral camber is located on a side panel face of disk shaped part.Described travel switch is arranged on disk shaped part side.It is few that this set structure takies radially (perpendicular to the direction of trigger unit axis of rotation) space.
Close down function as example to realize closing a floodgate below, illustrate that motor described in the utility model closes down controlling organization assembling process on earthed switch:
First earthed switch movable touch knife is placed in to "on" position or close a floodgate completely before angle while reaching disable motor desirable opportunity, then trigger unit is contained in to design and installation position rotationally in advance, by the design and installation position compressing facing to travel switch; And then according to the position of the face that compresses of trigger unit, determine roughly the concrete installation site of travel switch, and install fixingly, when installation, make the compress face of travel switch contact towards trigger unit; Finally rotate trigger unit, regulate and compress the position of correspondence course switch contact on face, until just trigger travel switch, then that trigger unit is fixing.
The trigger unit of closing down for point separating brake and the assembling process of travel switch are in like manner.
Find through experiment test repeatedly, the generation of the motor rotation blockage phenomenon of earthing switch electrical operating mechanism, it is bad that reason is mainly that motor is closed down opportunity, or the inefficacy of travel switch.
The motor of electric ground switch is closed down, conventionally adopt travel switch to coordinate the controlling organization of closing down of trigger unit composition to control, its principle is: travel switch is connected in the electric power loop of motor, while triggering, switch is normally closed, make circuit communication, when triggering and being kept, switch opens is by cutoff circuit.
Its machinery arranges structure and is generally: travel switch is arranged on base or relatively on the fixing parts of base, the trigger unit of travel switch be arranged on movable touch knife or the parts such as the main shaft that simultaneously moves with movable touch knife on.When installation travel switch and trigger unit, adjust distance between the two, make trigger unit touch travel switch in the last moment of combined floodgate or separating brake, and keep pressing travel switch in the time that earthed switch keeps combined floodgate or gate-dividing state.
Because combined floodgate and the open position of movable touch knife are decided by position-limit mechanism, and the divide-shut brake of movable touch knife moves under spring action, has very large instant impact.In divide-shut brake process, position-limit mechanism is bearing larger inertia impulsive force, spacing parts wherein will inevitably produce distortion, this distortion must cause movable touch knife point, combined floodgate extreme position changes (taking opening and closing state design declinate as 90 degree are as example, use after a period of time, actual declinate generally can be increased to 91 degree-92 degree).In addition, this also can deform movable touch knife under impulsive force, and the phenomenon such as the connection between each parts and matching relationship also can become flexible along with the increase of access times, distortion.Above all changes factor stacks up, and effect is more obvious.
Original earthed switch is as the non-precision optical machinery device of one, and the change bringing because of above-mentioned various changing factors does not form impact to the ground connection performance of traditional earthed switch.But for electric ground switch, because the trigger unit of travel switch is associated with action components such as movable touch knifes, the shaped position relationship change of the parts such as movable touch knife changes the actuating length of the trigger unit that causes travel switch, this variation is generally less than the relatively accurate travel switch of 3mm for impulse stroke, impact is fatal.
This impact is for different structures, and main manifestations is two kinds of results: one, and change the opportunity that motor is closed down; Its two, travel switch lost efficacy.
The first affect that result generally occurs in that trigger unit arranges on main shaft or situation near the position of main shaft under.Along with earthed switch changes because long-time use causes the opening and closing state declinate of earthed switch, in separating brake or making process, the angle that trigger mechanism rotates with main shaft changes thereupon, because trigger unit is from center of rotation close together, the variation of the distance to travel switch that therefore this angle variation shows is less, generally be not enough to exceed the limit of travel switch and damage travel switch (if the position of travel switch adjustment at the beginning is bad, also having the possibility that exceeds its limit damage travel switch).But change in whole separating brake or making process the opportunity that trigger unit contacts with travel switch.Cause motor in completely stall or be blocked and stop at separating brake completely or after closing a floodgate before separating brake or combined floodgate prerequisite.Reliability to earthed switch and whole service life form considerable influence.
The second affects result and generally occurs in the situation that trigger unit is arranged on the position far away apart from main shaft, as trigger unit is fixed on movable touch knife tool arm.Along with the extreme position of movable touch knife tool arm changes, the extreme position under combined floodgate and gate-dividing state of trigger unit changes thereupon, this variation directly shows that trigger unit is on the change of distance of travel switch, consequently: travel switch can not be triggered, or trigger apart from going beyond the limit of, directly damage travel switch.
Above, be electric ground switch of the prior art, useful life is all shorter, cannot be by the reason of 2000 divide-shut brake tests.
Visible, the use distortion, the stroke that how to reduce earthed switch action component change the impact on travel switch, become the key that solves the short-lived problem of existing electric ground switch.
In addition, even if do not consider in earthed switch use procedure, the problem that each parts deform and position relationship changes, according to the structural design of the motor pass stop mechanism of existing electric ground switch, the installation process of its travel switch, difficulty is also very large.
Earthed switch is a kind of comparatively coarse mechanical device, each parts required precision is not high, and after different part Product Assemblies complete, the position relationship error between its trigger unit and base is very large, generally can arrive greatly several millimeters, this error range has exceeded the impulse stroke of travel switch.Therefore, cannot be by process the mode of gauge mark or three-dimensional location structure on base, for the installation of travel switch brings convenience.Can only be after other each parts have assembled, the manual ideal position of determining travel switch, then fixing.
But, because the impulse stroke of travel switch is very little, its the site error scope that can accept is very little, manual in this very little scope, in 3mm, shift motion switch finds desirable position, large (one millimeter of the manual accurately move something part of difficulty, be difficult, if require error to be not more than 1mm, exceeded artificial limit of power).The installation of a travel switch often needs time a few minutes.Even if like this, the positional precision of installation is also difficult to be guaranteed.The alignment error of travel switch, directly affects closing down opportunity of motor.(suppose trigger unit as be fixed on collision block main shaft on) apart from spindle axis distance as 20mm as example taking travel switch trigger unit, the alignment error of supposing travel switch is 2mm, and the error angle reacting on main shaft is 2 × 360/40 л=5.76 degree.That is to say that travel switch probably in advance or delay 5.76 degree and close down motor.
But in electric ground switch, be again to affect the key factor that earthed switch is worked reliably the opportunity of closing down of motor, to close down too early, movable touch knife closes a floodgate or separating brake not yet completely, closes down evening, and motor rotation blockage can occur.Inappropriate motor is closed down opportunity, all very large to the infringement of transmission mechanism and motor, directly affects the whole service life of electric ground switch.Therefore, how more convenient, adjust travel switch and be in the distance between the trigger unit of extreme position accurately, become and improve the key issue that earthed switch quality is faced.
The utility model earthed switch, especially motor is closed down controlling organization, just based on above experiment conclusion and analyze propose.The utility model has been broken through in prior art directly shift motion switch to adjust the native mode of trigger unit and travel switch distance, design a kind of mode of coming Indirect method trigger unit and travel switch distance by rotating the action of trigger unit, this adjustment mode realizes the distance adjustment between trigger unit and travel switch by the curved surface variable quantity (curved surface is radially with respect to axis of rotation or vertically with respect to the change of distance of the plane perpendicular to axis of rotation) that compresses face, by the relative rectilinear movement between the trigger unit in common distance adjustment and travel switch, be converted into the circumferential movement of trigger unit hand-holding part, effectively amplify manual adjustments distance.Reduce the positioning difficulty of travel switch with respect to trigger unit, improved positioning precision.
If trigger unit hand-holding part is r to the radius of axis of rotation, the helical pitch (bus rotates a circle at axial or upwards offset distance of footpath) of spiral camber is D, between travel switch and trigger unit, need to adjust distance for l, trigger unit is held the actual mobile linear distance L=2 л rl/D in place
Suppose r=20mm, D=10mm, l=1mm, L=2 л × 20mm × 1mm ÷ 10mm=12.56mm.
That is to say, if distance between trigger unit and travel switch is adjusted to 1mm, trigger unit outer rim need be held to place around the actual mobile 12.56mm of circumference.Multiplication factor is 12.56 times.
The error of supposing manual mobile object is not more than 2mm; when adopting motor of the present utility model to close stop mechanism; workman regulates the Controllable Error of trigger unit and travel switch distance to be less than 0.064mm; obviously; with respect to the installation of travel switch in existing electric ground switch; Controllable Error reduces greatly, and installation accuracy improves greatly.
In described travel switch and trigger unit one arrange base or with the fixing parts of base on, another one is arranged on the movable part such as main shaft, movable touch knife tool arm.
Consider between travel switch and motor and be connected with wire, preferably travel switch is arranged on base or with the fixing parts of base on.
Further, described trigger unit can be arranged on grounding switch main shaft, and the axle center of spiral camber overlaps with spindle axis, after described trigger unit and main shaft are fixing, rotates with main shaft.
The great advantage of this setup is, effectively the use distortion of earthed switch action component, stroke is changed the impact of travel switch is reduced.
With earthed switch, repeatedly after divide-shut brake 2000 times, it is example that divide-shut brake declinate changes 2 degree, and the helical pitch of establishing equally spiral camber is D, before and after repeatedly making, and variable quantity the l '=2D/360 of the minimum range between travel switch and trigger unit.
If D=10mm, l '=2 × 10mm ÷ 360=0.055mm, is less than the distance affects of 0.1mm, for travel switch, substantially can ignore.
The ordinary skill scheme of collision block triggering travel switch is set on main shaft as adopted, the point of supposing collision block triggering travel switch is 20mm to spindle axis distance, earthed switch 2000 front and back of divide-shut brake repeatedly, collision block is 2 × 3.14 × 20mm × 2 ÷ 360=0.698mm to the minimum range variable quantity of travel switch.
Can find out, adopt the above-mentioned motor of the utility model to close stop mechanism, use distortion, the stroke variation etc. of earthed switch action component can be reduced to nearly 13 times to the impact of travel switch.
It should be noted that: above example, all taking constant speed spiral camber as example, is only for convenience of explanation, but in the utility model, adopts the spiral camber of other type, as logarithm spiral (equiangular spiral) curved surface, its effect is the same with constant speed spiral camber.Be understandable that, in the technical solution of the utility model, the type of technique effect and curved surface is irrelevant, the factor of influence technique effect is only rate of change (the trigger unit rotation unit angle of curved surface, curved surface is to the amount of liter of the distance of datum level or datum line or datum mark), rate of change is less, and the linear distance of manual adjustments is larger with respect to the multiple of the distance of travel switch and trigger unit, and it is less that simultaneously main shaft divide-shut brake declinate changes the impact of the distance on travel switch and trigger unit.Therefore, be not difficult mutually, even non-helical curved surface, as long as in the time that trigger unit rotates, the position of this surface correspondence course switch contact is gradual change with respect to the distance of travel switch, can have the technique effect representing in above-mentioned example.
On the whole, the disclosed earthed switch of the utility model, adopt compacter motor-operating mechanism and the higher motor of precision of structure to close down controlling organization, simple in structure, overall operation is functional, reliability is high, has effectively solved the existing various problems of existing electric ground switch, long service life.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of a kind of instantiation of electric ground switch described in the utility model.
Fig. 2 is the plan structure schematic diagram of electric ground switch shown in Fig. 1.
Fig. 3 is the right TV structure schematic diagram of electric ground switch shown in Fig. 1.
Fig. 4 is clutch transmission overall structure schematic diagram described in the utility model.
Fig. 5 is driving gear structural representation in clutch transmission.
Fig. 6 is that driving gear B-B shown in Fig. 5 is to cross-sectional view.
Fig. 7 is driven gear structural representation in clutch transmission.
Fig. 8 is drive plate structural representation in clutch transmission.
Fig. 9 is the right TV structure schematic diagram of drive plate shown in Fig. 8.
Figure 10 is that drive plate C-C shown in Fig. 8 is to cross-sectional view.
Figure 11 be in Fig. 4 A-A to sectional view.
Figure 12 is clutch transmission medi-spring coil structures schematic diagram.
Figure 13 is that motor described in the utility model is closed down mechanism structure schematic diagram.
Figure 14 is the structural scheme of mechanism of closing down adopting with the travel switch of pressing plate.
Figure 15 compresses the travel switch trigger unit structural representation that face is Cylindrical spiral curved surface.
Figure 16 is that shown in Figure 15, trigger unit coordinates schematic diagram with travel switch.
Figure 17 is the Cylindrical spiral curved surface deployed condition schematic diagram of trigger unit shown in Figure 15.
Figure 18 is that trigger unit shown in Figure 15 coordinates schematic diagram with the travel switch with pressing plate.
Embodiment
, taking a relatively concrete electric ground switch as example the technical solution of the utility model is described further below in conjunction with accompanying drawing.
With reference to Fig. 1-3, described electric ground switch comprises switch main body and motor-operating mechanism, described switch main body comprises base, base is by cuboid after-frame 3 and rear end and fixing arranged on left and right sides supporting bracket 7,9(left side plate and the right side plate of after-frame 3) form, three insulators 2 are installed at after-frame 3 upper surface intervals, and a fixed contact 1 is fixed by fixed contact pedestal 16 in each insulator 2 upper ends.Main shaft 8 is assemblied in the axis hole of supported on both sides plate near rear end, on main shaft 8, three groups of moving knife support plates 17 are fixed in the position of corresponding three fixed contacts 1, a movable touch knife being made up of double blade 5 is installed on every group of moving knife support plate 17, three movable touch knifes 5 connect by nipple 4, be positioned at and on two groups of moving knife support plates 17 of both sides, comprise respectively or fix a connecting lever 15, corresponding each connecting lever 15 is provided with a spring assembly 13, described spring assembly 13 is by intermediate cylindrical Compress Spring 13 and two articulated coupling heads 12 that are fixed on cylindrical compression spring two ends, 14, one end connector 14 of two spring assemblies 13 is hinged with two connecting levers 15 respectively, other end connector 12 is hinged on respectively base supported on both sides plate 7, 9 front end.
One section of described main shaft right-hand member protuberate basic unit right plate for manual operation main shaft.Main shaft 8 is provided with axial Yangtze River Delta groove 6, freely moves, and assemble the handle that manual operation is used for the rotation of each parts that restriction is mounted thereon reliably.On handle, establish main shaft trepanning, establish the bulge-structure coordinating with main shaft triangular groove 6 in main shaft trepanning, the shape of main shaft trepanning is identical with main shaft cross sectional shape.
Described motor-operating mechanism is arranged in the after-frame of base, and after-frame is provided with window 28 towards a side of main shaft, and on main shaft, a gear 29 is assembled at the position of corresponding window 28.Described motor-operating mechanism comprises motor, reducing gear, clutch transmission, and motor output shaft is connected with reducing gear input, and reducing gear output is connected with the gear 29 assembling on main shaft by clutch transmission.
The gear 29 assembling on main shaft exists one with respect to main shaft and freely rotates complementary angle, and this set structure mainly comprises two advantages.
One, in the time that motor operation mechanism drives moving contact to turn over critical angle, under the effect of strong spring assembly, moving contact is accelerated motion suddenly, until reach the traverse limit.In this process, because moving contact responsiveness exceedes the rotating speed of motor-operating mechanism, if main shaft and mainshaft gear 29 are directly fixing,, after main shaft accelerates, stressed meeting in the drive system of operating mechanism between each parts is reverse suddenly, and the joint face between each parts is brought to impulsive force between very large Shun, easily causes parts damages.Between main shaft and mainshaft gear 29, complementary angle is rotated in design, can be after main shaft turns over critical point in accelerator, make main shaft and the renunciation of electric operating system.Effectively avoid the problems referred to above.
Its two because the existence of error, even if accurate motor is closed down control again, be also difficult to realize just stall between the Shun in the time that moving contact turns to extreme position of motor, unavoidably there is stall or holder turns.Between employing main shaft and mainshaft gear 29, the mode of complementary angle is rotated in design, because the existence of remaining solution, in the time setting, suitably shifts to an earlier date the opportunity of closing down of motor, after motor is closed down, the last segment traverse of moving contact action is completed automatically by main shaft spring.Error efficiently solves because can not very accurately be set motor and close down the realistic problem on opportunity.
Obviously, between main shaft and mainshaft gear, rotate the design of complementary angle, changed motor and closed down the reality that opportunity earthed switch integrated operation performance is existed crucial impact.Adopt the design of this complementary angle, no longer need to set motor accurately and close down opportunity, and to the performance of earthed switch without any harmful effect.
When closing down motor when 10 points, 10, two travel switches of two travel switches are fixed in supporting bracket 9 outsides, described base right side for separating brake and closing a floodgate, close down motor.Described main shaft 8 stretches out the position of this side supporting bracket 9 and assembles two cams 11 that are respectively used to touch two travel switches.
With reference to Fig. 4-12, described clutch transmission comprises a driven gear 24, driving gear 22, a drive plate 27 and a spring coil 18, described driven gear 24, driving gear 22, drive plate 27 threes are sleeved in same assembled shaft 21, and described drive plate 27 is between driven gear 24 and driving gear 22.Driving gear 22 engages with reducing gear gear of output end, and driven gear 24 edges stretch out window 28 and engage with the mainshaft gear 29 on assembling main shaft.
Between driven gear 24 and drive plate 27, be provided with Compress Spring 25, driven gear 24 is provided with four strip grooves 30 that radially extend towards a side of drive plate 27, and described four strip grooves 30 are uniformly distributed circumferentially.
Drive plate 27 is provided with two towards a side of driven gear 24 and prolongs equally the strip projection 31 of radially extending, shape and the groove 30 of projection 31 match, two projections are symmetrical, be positioned on the same diameter of drive plate, two projections 31 simultaneously respectively with four grooves 30 in two groove interlocks of not facing mutually.
Drive plate 27 is provided with four cone tanks 23 towards a side of driving gear 22, driving gear is provided with four reverse cone tanks 19 towards 22 to a side of drive plate, cone tank 19 on driving gear is relative with the cone tank 23 on drive plate, is respectively furnished with a steel ball 20 in the cavity that cone tank is combined to form between two.
Drive plate periphery is provided with annular groove 32, and one end of described spring coil 18 is circular ring structure, and cover fits on annular groove 32, and with the mutual friction of ring groove surface phase, the other end is narrower than circular ring structure part, is sleeved on reducing gear output shaft.
With reference to Figure 13-14, described cam 11 outer rims comprise that one section for touching the face that compresses 33 of travel switch contact 34.The described face that compresses is made up of one section of snail curved surface.In Figure 13, travel switch is contact type, and its contact points to the axle center of cam.Compress 33 peaks on face (to cam axle center point) farthest and minimum point (to cam axle center nearest point) are greater than travel switch impulse stroke to the range difference in cam axle center.Figure 14 shows that cam described in the utility model is applicable to the situation with the travel switch of pressing plate.
With reference to Figure 15-18, for triggering the trigger unit of travel switch, main body is a disc structure, and disk right side card is provided with one section of Cylindrical spiral curved surface 35 taking disc centre as axle center, Cylindrical spiral curved surface 35 as the face that compresses for touching the contact 34 of travel switch.In Figure 16, travel switch is contact type, the pointing direction of its contact and the axis parallel of cam.Peak on spiral camber 35 (to perpendicular to cam axle center one datum level) and minimum point (to the nearest point of same datum level) are greater than the impulse stroke of travel switch to the range difference of the base surface perpendicular to cam axle center.Figure 18 is the situation that shown in Figure 15, trigger unit is applicable to presser type travel switch, and the pressing plate of travel switch is along disk diameter to placement, and the press surface of pressing plate is resisted against on Cylindrical spiral curved surface 35.
Claims (10)
1. a manual and electric Integral earthing switch, comprises that earthed switch main body, motor-operating mechanism and motor close down controlling organization, and described switch main body comprises three fixed contacts and three movable touch knifes, and three movable touch knifes and fixed contact match one by one;
Described fixed contact is fixed on base by insulator, and described movable touch knife is fixedly assemblied on a main shaft, and main shaft is rotatably on the supported on both sides plate that is assemblied in base; With the coaxially relative connecting lever that is fixedly equipped with of movable touch knife, one end connector of the movable end of connecting lever and cylindrical compression spring is hinged, and the other end connector of cylindrical compression spring is hinged on base;
It is characterized in that, described motor-operating mechanism comprises motor and the clutch transmission being connected with motor, described clutch transmission comprises the driving gear engaging with reducing gear gear of output end that concentric sets gradually, one drive plate axially slidably arranging, a driven gear engaging with the mainshaft gear being assemblied on the main shaft of earthed switch, between described driven gear and drive plate, be provided with Compress Spring, driven gear and drive plate opposite face are provided with convex-concave fit structure, the opposite face of drive plate and driving gear is provided with paired cone tank, in every pair of cone tank, be equipped with steel ball, drive plate periphery is provided with annular groove, and clutch transmission also comprises a spring coil, and described spring coil is semi-closed structure, and its one end is the circular ring structure with opening, and cover fits on annular groove, and with the mutual friction of ring groove surface phase, the other end is enclosed within on an axle, described motor is closed down controlling organization and is comprised that being respectively used to separating brake closes down motor and two travel switches of closing down motor and two trigger units that are respectively used to touch two travel switches of closing a floodgate, and described trigger unit is provided with the face that compresses being made up of one section of spiral camber.
2. manual and electric Integral earthing switch according to claim 1, is characterized in that, is more than two in the quantity of described convex-concave fit structure, is evenly arranged at circumferencial direction; The quantity of described steel ball is more than two, and is evenly arranged at circumferencial direction equally.
3. manual and electric Integral earthing switch according to claim 1, is characterized in that, the spring coil other end is enclosed within on reducing gear output shaft.
4. manual and electric Integral earthing switch according to claim 1, is characterized in that, described mainshaft gear exists one with respect to the main shaft of earthed switch and freely rotates complementary angle.
5. manual and electric Integral earthing switch according to claim 1, it is characterized in that, described trigger unit is disk-like structure, axis of rotation is perpendicular to card, at least one section of outer margin contour of disk-like structure is snail curved-surface structure, and described travel switch is arranged on the radial outside of disk shaped part.
6. manual and electric Integral earthing switch according to claim 1, is characterized in that, described spiral camber is one section of Cylindrical spiral curved surface taking trigger unit axis of rotation as axle center.
7. manual and electric Integral earthing switch according to claim 6, is characterized in that, described trigger unit main part is a disk shaped part, and axis of rotation is perpendicular to card, and spiral camber is located on a side panel face of disk shaped part; Described travel switch is arranged on disk shaped part spiral camber place side.
8. manual and electric Integral earthing switch according to claim 1, is characterized in that, described travel switch be arranged on base or with the fixing parts of base on; Described trigger unit is arranged on grounding switch main shaft, and the axle center of spiral camber overlaps with spindle axis, after described trigger unit and main shaft are fixing, rotates with main shaft.
9. manual and electric Integral earthing switch according to claim 1, is characterized in that, driven gear is provided with four strip grooves that radially extend towards a side of drive plate, and described four strip grooves are uniformly distributed circumferentially; Drive plate is provided with two strip projections of equally radially extending towards a side of driven gear, shape and the groove of projection match, two projections are symmetrical, be positioned on the same diameter of drive plate, two projections simultaneously respectively with four grooves in two groove interlocks of not facing mutually.
10. manual and electric Integral earthing switch according to claim 1, it is characterized in that, drive plate is provided with four cone tanks towards a side of driving gear, driving gear is provided with four reverse cone tanks towards a side of drive plate, cone tank on driving gear is relative with the cone tank on drive plate, is respectively furnished with a steel ball in the cavity that cone tank is combined to form between two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723179.4U CN203941823U (en) | 2013-11-13 | 2013-11-13 | A kind of manual and electric Integral earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723179.4U CN203941823U (en) | 2013-11-13 | 2013-11-13 | A kind of manual and electric Integral earthing switch |
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| Publication Number | Publication Date |
|---|---|
| CN203941823U true CN203941823U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320723179.4U Expired - Lifetime CN203941823U (en) | 2013-11-13 | 2013-11-13 | A kind of manual and electric Integral earthing switch |
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| CN (1) | CN203941823U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104466528A (en) * | 2014-12-24 | 2015-03-25 | 成都运达科技股份有限公司 | High-voltage overhead line system grounding device |
| CN104460495A (en) * | 2014-12-05 | 2015-03-25 | 广东韶钢松山股份有限公司 | Touch switch equivalently applied as stroke switch and application thereof |
| CN105185609A (en) * | 2015-08-26 | 2015-12-23 | 江山市电器技术开发有限公司 | Grounding switch with static contact utilizing electrodynamic force |
| CN105583673A (en) * | 2016-03-10 | 2016-05-18 | 广西南宁侨盛木业有限责任公司 | Mechanical positioning switch capable of accurately limiting metering length |
| CN105840744A (en) * | 2015-01-12 | 2016-08-10 | 广东德昌电机有限公司 | Gear actuator |
| CN108172426A (en) * | 2018-01-26 | 2018-06-15 | 河南森源电气股份有限公司 | Operating mechanism and the on-load switch using the operating mechanism |
| CN108550490A (en) * | 2018-04-28 | 2018-09-18 | 河南华盛隆源电气有限公司 | A kind of isolated breaker, disconnecting switch and its electronic isolation chassis |
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- 2013-11-13 CN CN201320723179.4U patent/CN203941823U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104460495A (en) * | 2014-12-05 | 2015-03-25 | 广东韶钢松山股份有限公司 | Touch switch equivalently applied as stroke switch and application thereof |
| CN104460495B (en) * | 2014-12-05 | 2017-05-17 | 广东韶钢松山股份有限公司 | Touch switch equivalently applied as stroke switch and application thereof |
| CN104466528A (en) * | 2014-12-24 | 2015-03-25 | 成都运达科技股份有限公司 | High-voltage overhead line system grounding device |
| CN104466528B (en) * | 2014-12-24 | 2016-08-31 | 成都运达科技股份有限公司 | High-voltage contact net grounding device |
| CN105840744B (en) * | 2015-01-12 | 2019-12-31 | 广东德昌电机有限公司 | Gear transmission device |
| CN105840744A (en) * | 2015-01-12 | 2016-08-10 | 广东德昌电机有限公司 | Gear actuator |
| CN105185609A (en) * | 2015-08-26 | 2015-12-23 | 江山市电器技术开发有限公司 | Grounding switch with static contact utilizing electrodynamic force |
| CN105583673A (en) * | 2016-03-10 | 2016-05-18 | 广西南宁侨盛木业有限责任公司 | Mechanical positioning switch capable of accurately limiting metering length |
| CN105583673B (en) * | 2016-03-10 | 2017-09-12 | 广西南宁侨盛木业有限责任公司 | It is a kind of can accurate limiting measuring length machinery positioning switch |
| CN108172426A (en) * | 2018-01-26 | 2018-06-15 | 河南森源电气股份有限公司 | Operating mechanism and the on-load switch using the operating mechanism |
| CN108172426B (en) * | 2018-01-26 | 2024-01-19 | 河南森源电气股份有限公司 | Operating mechanism and load switch using same |
| CN108550490A (en) * | 2018-04-28 | 2018-09-18 | 河南华盛隆源电气有限公司 | A kind of isolated breaker, disconnecting switch and its electronic isolation chassis |
| CN108550490B (en) * | 2018-04-28 | 2020-05-05 | 河南华盛隆源电气有限公司 | Isolated circuit breaker, isolating switch and electric isolation underframe thereof |
| CN114334526A (en) * | 2022-01-04 | 2022-04-12 | 新驰电气集团有限公司 | Quick breaking isolating switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |
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