CN101770879B - Locking mechanism for control device of a high- or medium-voltage switchgear - Google Patents
Locking mechanism for control device of a high- or medium-voltage switchgear Download PDFInfo
- Publication number
- CN101770879B CN101770879B CN200910261384.1A CN200910261384A CN101770879B CN 101770879 B CN101770879 B CN 101770879B CN 200910261384 A CN200910261384 A CN 200910261384A CN 101770879 B CN101770879 B CN 101770879B
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- Prior art keywords
- disconnection
- equipment
- wheel
- actuating
- finger
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3031—Means for locking the spring in a charged state
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H2003/3063—Decoupling charging handle or motor at end of charging cycle or during charged condition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring
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- Mechanisms For Operating Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a mechanism for coupling a high- or medium-voltage switchgear control, with improved compactness and cost, capable of reducing the required component number. The actuating, mounting and breaking function is added into a single wheel (1,2,3) fixed on a control axle (12) and two spiral springs (5,6) respectively special for uncoupling and coupling at least one breaker of the switch devices are also fixed on the control axle (12); an adding device (11,110,111) is used for uncoupling between a manual key and the combination, actuating and mounting the wheel to separate at the final stage of the mounting operation. Thus the mechanism and the control device with the mechanism are more compact with lower cost.
Description
Technical field
The present invention relates to for thering is the field of the high pressure of at least one circuit breaker or the control device of medium voltage switchgear equipment.
Switchgear involved in the present invention can be up to three with the circuit breaker of difference in functionality: for example, and tie breaker, bus circuit breaker and earthing breaker.
More specifically, the present invention relates to comprise the control device of locking mechanism, remove (disarning) locking mechanism and there is the effect that causes at least one circuit breaker to carry out closed and disconnected circulation in the operation of switchgear.
The present invention is intended to propose a kind of new construction of locking mechanism.
Background technology
The mechanism that comprises the type that is commonly called double-locking mechanism for thering is the high pressure of at least one circuit breaker or the control device of medium voltage switchgear equipment.
For thering is the double-locking mechanism of the high pressure of at least one circuit breaker or the control device of medium voltage switchgear equipment, according to following steps sequential operation:
-load or equipment mechanism (that is to say, storage power is to carry out disconnection and the closed procedure of at least one circuit breaker of switchgear);
-by portion of energy stored in relieving mechanism (lock that is called as closed lock by release), carry out close circuit breaker; And
-by discharging the remainder (being called as the lock that disconnects lock by release) of stored energy, carry out cut-off breaker.
Therefore, double-locking mechanism can storage power, to carry out two operations of at least one circuit breaker of the switchgear with this mechanism: i.e. closed procedure and opening operation then.
The double-locking mechanism of known type comprises two helical springs, and this helical spring typically has high rigidity in high pressure or middle pressure ring border.This helical spring is compressed in so-called " equipment (arming) " or load operation, this equipment " or manually (with the key of lever form) execution of load operation and/or carry out by motor-driven charger.For standardization reasons, by rotating to equip mechanism around common rotating shaft line.
Compare with the mechanism with (or two) Compress Spring, the mechanism with two coaxial spiral springs has advantage due to the fact that: first, it makes it possible to system axle compact to design; Secondly, it makes it possible to obtain desirable energy distribution, and the moment of torsion applying because of each helical spring of serving as reasons (when spring is during in its maximum compression) when operation starts is maximum, and because it is all the time by orientation (having zero radial load) ideally.
In Fig. 1, diagrammatically show Yi Ge double-locking mechanism, it is sold, and utilizes two coaxial spiral springs to store the required energy of closed and disconnected circuit breaker.The circuit breaker of the body of described control device and high pressure or medium voltage switchgear equipment is not shown: motion and the rotation of below with reference to fixed body, describing various elements engage.
The known M of mechanism comprises following main element, and parts are stacking continuously by following order:
The-the first revolving part 1, is called as and activates wheel, and it is fixed to the axle 10 that is called as Control Shaft,
The-the second revolving part 2, is called as change system, is suitable for being engaged to rotatably and being activated wheel by the second axle 20, and this second axle is called as equipment axle, and is arranged in slip in the groove 11 being formed in actuating wheel 1,
-tri-revolving parts 3, are called as and disconnect wheel, be fixed to equipment wheel 2, the three axles be called as disconnection axle by the 3rd axle 30, be bonded in the chamber 21 being formed in equipment wheel 2,
-tetra-revolving parts 4, are called as output and closed wheel, and it comprises that the 4th axle 40, the four axles are called as output shaft, for continuing to engage with at least one circuit breaker of high pressure or medium voltage switchgear equipment during in its installation constitution when equipment,
-two coaxial mounted helical springs 5 and 6, one of them is called as disconnection spring 5, it is suitable for by discharge the circuit breaker of cut-off switch equipment from compressive state, and another is called as closing spring 6, and it is suitable for by discharge the circuit breaker of Closing Switch equipment from compressive state; One end of each in two springs 5 and 6 is fixed to and disconnects wheel 3, and meanwhile, the other end that disconnects spring 5 is fixed to mechanism body, and the other end of closing spring 6 is fixed to output and closed wheel 4,
-two fingers 7 and 8 that are pivoted in body, one of them is called as disconnection locking finger (finger) 7, it is suitable for pinning when disconnecting spring 5 in its compressive state and disconnects wheel 3, another is called as closed-lock finger 8, and it is suitable for pinning output and closed wheel 4 during in compressive state when closing spring 6.
In addition, rotary joint (not shown) is arranged between disconnection wheel 3 and output and closed wheel 4 by this way, that is, when disconnection wheel 3 rotates in the counterclockwise direction, it is driver output and closed wheel 4 in identical direction of rotation.
As shown in Figure 1, the M of mechanism is in disconnecting in corresponding initial condition with circuit breaker.Remove spring 5 and 6, output and closed wheel 4 are pinned in closed-lock finger 8, and meanwhile, disconnecting locking finger is freely.
Manually equip in the following manner the M of mechanism of the prior art:
-on actuator shaft 10, assemble manual activation key (key and actuator shaft are bonded together rotatably by keyway (spline) system (not shown)).
-manual activation key rotates in the clockwise direction, to compress two springs 5 and 6.This rotation of key, and the rotation that is engaged to rotatably thus the actuating wheel 1 of key, cause being bonded on the rotation of change system 2 in groove 11 once equipment axle 20, and cause disconnecting wheel 3 rotations.Two springs 5 and 6 produce compression simultaneously, until a part disconnects wheel 3, are just in time disconnected locking finger 7 and pin (closed-lock finger 8 is from the beginning in its latched position).In this, the layout that is formed at the locking member (can be extension or groove) on disconnection wheel 3 makes in given position, disconnects locking finger and automatically locks and engage with described locking member.Then, stop wheel 1,2,3 and 4 and the rotation of manual activation key.
In this latched position, the M of mechanism is in disconnecting in corresponding state with circuit breaker, spring 5 and 6 compressed (or equipment), and pin disconnecting on wheel 3 and output and closed wheel 4 respectively locking finger 7 and 8.
Below disconnection and the closed circulation that is engaged to the circuit breaker of the control device that is equipped with locking mechanism M:
-by the appropriate device (device of hand push button type, or mechanically provide the device of automatic type of the signal of fuse wire) open closed locking finger 8, this device can open along with the rotation in the clockwise direction of output and closed wheel 4 closing spring 6.Because output and closed wheel 4 are engaged to circuit breaker by output shaft 40, therefore, output and turning clockwise of closure wheel cause the closure of circuit breaker,
-by appropriate device, to open and disconnect locking finger 7 again, this device can open closing spring 5, and makes thus disconnection wheel 3 to rotate in the counterclockwise direction; And by coupling device, it is driver output and closed wheel 4 in the same direction.Be engaged to the also rotation in the same direction of circuit breaker of output and closed wheel 4.
Last at its stroke, closed-lock finger 8 automatic lock on grounds are on output and closed wheel 4.Then, new state and initial condition that mechanism removes now are completely corresponding, that is to say, and circuit breaker disconnection, spring 5 and 6 opens, and closed-lock finger 8 engages with output and closed wheel 4, and disconnection locking finger 7 is freely.
The M of mechanism of prior art has special advantage: it has proposed in the upper equipment of equidirectional (that is, clockwise direction) and closed mode.
It also has advantages of such, that is, it meets two conditions of standard, according to this standard:
-in single manual operation, equipment disconnects spring 5 and closing spring 6 simultaneously,
-in the situation of breaker closing, for example, when there is short circuit, must reopen immediately mechanism, and the danger without any injury near the operator who exists control device, manual key will still be present on control device: in this, have such danger in opening operation process, i.e. motion in the direction identical with disconnecting wheel is by the key reversing that makes still to exist.
In order to respond this last-mentioned condition of described standard, the M of mechanism of the prior art is thus at equipment axle 20 be formed between the groove 11 disconnecting in wheel 1 disengaging is provided, or in other words separated.
The M of mechanism of the prior art is not entirely satisfactory, because find that it manufactures complicatedly, and it is comprised of a large amount of parts, and especially, with one group of excessive parts, all these is unfavorable to the cost of mechanism and size.These group parts are because the existence of equipment axle 20 is arranged in rotation change system 2, equipment axle 20 for the disengaging between manual activation key (and engaging the disconnection wheel 1 engage by flower key) and the remainder of mechanism with separated.
Now, not only the size of mechanism is large, but also finds that the mechanism of assembling is difficult to comprise any miscellaneous function (such as the function of starter relay, device indicating, locking device etc.).
Therefore, the object of the invention is to propose a kind of for having the new locking mechanism of the high pressure of at least one circuit breaker or the control device of medium voltage switchgear equipment, described mechanism meets following requirement:
-store circuit breaker carries out the closed and disconnected required energy that moves in single operation;
-carry out equipment operation, with institute's energy requirement, realize in the same direction actual disconnection and closing motion;
-when disconnecting and closing motion starts, transmit peak torque;
-reduce costs; And
-compact as far as possible, so that control device is easier to comprise miscellaneous function (such as the function of starter relay, device indicating, locking device etc.).
Summary of the invention
For this reason, the invention provides a kind ofly for having the locking mechanism of the high pressure of at least one circuit breaker or the control device of medium voltage switchgear equipment, described locking mechanism comprises:
-Control Shaft;
The-the first revolving part, the actuating, equipment and the disconnection that are called as combination are taken turns, and it is fixed to Control Shaft and is suitable for rotating by manual key;
The-the second revolving part, is called as output and closed wheel, and it is installed to be around Control Shaft and rotates freely, and output shaft is fixed to output and closed wheel;
-two helical springs, one of them is called as disconnection spring, described disconnection spring is suitable for by discharge the circuit breaker of off device from compressive state, another in described helical spring is called as closing spring, it is suitable for by discharge the circuit breaker of closing apparatus from compressive state, and each in the inner of disconnection spring and closing spring is fixed to Control Shaft, simultaneously, the outer end that disconnects spring is fixed to the body of mechanism, and the outer end of closing spring is fixed to output and closed wheel;
-closed-lock device and disconnection locking device, it is all installed to be pivoting action between two states, one in described state is such state: in the time of by closing spring and disconnection spring, compress, make a described locking device can stop the motion of output and closed wheel, then stop the motion of actuating, equipment and the disconnection wheel of combination, described compression realizes by rotary manual key in one direction; By the release in succession of closing spring and disconnection spring, another state of described state allows output and closed wheel and the actuating of combining, equipment and the rotation in the opposite direction of disconnection wheel in succession; And
-for the actuating of manual key and combination, equipment and disconnection being taken turns to the coupling device being bonded together, described coupling device is included in the actuating, equipment of combination and the thickness of disconnection wheel, and be designed to equipment motion finally by the actuating of described combination, equipment and disconnection wheel and manual key disengaging.
Contrary with the double-locking M of mechanism of the prior art as above with shown in Fig. 1, inventor is by the function that adds disconnection, equipment and control in the actuating a public combination, equipment and disconnection wheel, and between the actuating, equipment and the disconnection that activate key and combination are taken turns, add equipment device in the thickness by the actuating in combination, equipment and disconnection wheel, advisably the number of plies of rotating parts is designed to be reduced to two-layer (rather than four layers).
All other things are all the same, are exactly undeniable so in the benefit aspect cost and volume, because:
-first, replace manufacturing three different wheels in control device in the prior art, now only need to manufacture actuating, equipment and the disconnection wheel of a combination; And
-secondly, the gross thickness of mechanism (in other words, it is along the size of the rotation of wheel) reduces.
In favourable form of the present invention, mechanism forms double-locking mechanism, and locking device is comprised of two separated fingers, a finger is called as closed-lock finger, it is installed to be towards output and closed wheel pivoting action, and is suitable for the motion at the prevention output of the compressed position of closing spring and closed wheel, and another finger is called as disconnection locking finger, it is installed to be towards disconnecting wheel pivoting action, and is suitable in the motion that disconnects the compressed position of spring prevention disconnection wheel.
Preferably, disconnect locking finger and closed-lock finger and be installed to be pivoting action in common axis.
Double-locking mechanism constructed in accordance can specifically apply in some applications, and these application can be described as " normal/urgent " situation, in described situation, must for example, to a part for distribution system (hospital), keep continued power.In this case, the part of related system has two different power supplys, and a power supply is being used, and another maintenance need not.Therefore, when work under normal operation primary source failure time, its relevant circuit breaker will disconnect, simultaneously, by discharging the closed energy of the storage in double-locking mechanism, carry out the closed circuit breaker that is called as urgent circuit breaker, this double-locking mechanism is exclusively used in this circuit breaker.When recovering main power source, its circuit breaker is again closed, and then, the disconnection energy being stored in special-purpose double-locking mechanism by release carrys out automatically again to disconnect urgent circuit breaker.
In a modification, can be at equipment operation finally automatically discharge closed-lock device.For example, this is possible by ejecting that (ejection) closed-lock finger realizes.Like this, by carrying out temporary transient closed-lock operation, make mechanism become a kind of simple locking mechanism.Then, after breaker closing and directly, after equipment phase, simple locking mechanism of the present invention has enough energy, thereby can disconnect locking device and cut-off breaker by release.The circuit breaker that the main application of the simple locking mechanism of this type is conceived to be protected by fuse, thereby, when blown fuse; it causes producing the mechanically actuated of mechanism, thus mechanism's cut-off breaker, and; if appropriate, also disconnect the equipment that is equipped with circuit breaker.
For finally working to realize the actuating of manual key and combination at equipment operation, (described device is included in the actuating of described combination for joint between equipment and disconnection wheel and the device of disengaging, in the thickness of equipment and disconnection wheel) can advantageously comprise fixing mechanical abutment (abutment) and finger, this finger is called as controls finger, it is installed to be the actuating of combining between the two positions, equipment and the upper pivoting action of disconnection wheel, in described position, a position is called as control position, in the actuating of controlling finger and combination, restriceted envelope between equipment and disconnection wheel, make it possible to a part of manual key to insert in described space, thereby stop the actuating of combination, equipment and the rotation of disconnection wheel, realize thus described joint, another position in described position is called as ejected position, described manual key part is freely in this position, to finally realize described disengaging at equipment operation, after rotatablely moving of manual key caused compressing and locked disconnection and closing spring, joint by the element controlling finger or be fixed to described control finger on mechanical abutment produces the transformation from control position to ejected position.
The direct contact that preferably activates the lever element on finger by being fixed on obtains the described joint on mechanical abutment, and lever element is fixed to lever arm between the point that activates finger in order to the power of manually equipping in key end is decreased to predetermined value activating junction point on finger and lever element.Make it possible to the power of manually equipping in key end to be significantly decreased to predetermined value with the use that activates the lever arm system of mating finger, this predetermined value is 250 newton's (N) magnitude typically.This considers such fact: standard criterion regulation, the power of manually equipping in key end can not be over the value of 250N magnitude.Now, the length of manually equipping key can not increase the integral installation size of the control device unit that includes mechanism of the present invention, this expression, and increasing this length is impossible to reduce power.
Of the present invention at least one take turns, or two wheels (that is, the actuating of combination, equipment and disconnection wheel and output and closed wheel) can be made by thermoplastic.
The present invention further provides high pressure or the medium voltage switchgear equipment with at least one circuit breaker, this switchgear comprises the control device with locking mechanism as above.
Accompanying drawing explanation
With reference to the following drawings, the detailed description of the embodiments of the present invention that provide by the mode of reading with example, other advantage of the present invention and feature will clearlyer display:
Fig. 1 is the diagram that double-locking mechanism of the prior art (M) has been shown in axial cross section;
Fig. 2 is the diagram having illustrated in axial cross section according to double-locking mechanism of the present invention (Mi);
Fig. 3 is the perspective view of the mechanism identical with mechanism shown in Fig. 2;
Fig. 4 A and Fig. 4 B show the top view for the step in the manual equipment process of the mechanism (Mi) of Fig. 2 and Fig. 3;
Fig. 5 A and Fig. 5 B show the top view that is engaged to the step in the circulation of circuit breaker of control device at closed and disconnected, and this control device comprises the mechanism shown in Fig. 2 and Fig. 3 (Mi);
Fig. 6 shows that key engages with mechanism of the present invention (Mi) and the perspective view of the device that departs from for manually equipping at equipment operation last;
Fig. 6 A to Fig. 6 E diagrammatically shows by the various equipments that carry out with lower device and removes the top view of step, and this device is bonded together the manual equipment key in Fig. 6 and mechanism (Mi), and equipment operation finally by its disengaging.
Embodiment
Double-locking mechanism of the prior art (M) described above, no longer repeats this description.
For the sake of clarity, the common element of double-locking mechanism of the prior art (M) and double-locking mechanism of the present invention (Mi) represents by same reference numerals.
In the stacking direction of parts, consider, mechanism of the present invention (Mi) comprises following main element:
The-the first revolving part, is called as and activates wheel 1, is fixed to and is called as the axle 10 of actuator shaft and is suitable for rotating by manual key 9.As explained above, this also takes turns and carries out and disconnect the function of wheel 3 and comprise change system 2,
-Control Shaft 12, the actuating, equipment and the disconnection that are fixed to combination take turns 1,2,3,
The-the second revolving part, is called as output and closed wheel 4, and it comprises the axle that is called as output shaft 40, and described output shaft is for continuing to engage with at least one circuit breaker of high pressure or medium voltage switchgear equipment during in its installation constitution when switchgear,
-two coaxial mounted helical springs 5 and 6, one of them is called as disconnection spring 5, it is suitable for by discharge the circuit breaker of cut-off switch equipment from compressive state, and another is called as closing spring 6, and it is suitable for by discharge at least one circuit breaker of Closing Switch equipment from compressive state; One end (being its inner) of each in two springs 5 and 6 is fixed to Control Shaft 12, and meanwhile, the outer end that disconnects spring 5 is fixed to mechanism body, and the outer end of closing spring 6 is fixed to output and closed wheel 4,
-two fingers 7 and 8 that are installed to be pivoting action in body, one of them is called as disconnection locking finger 7, it is suitable for pinning actuating, equipment and the disconnection wheel 1 of combination when disconnecting spring 5 in its compressive state, 2,3, meanwhile, another is called as closed-lock finger 8, it is suitable for pinning output and closed wheel 4 during in compressive state when closing spring 6
-device 11,110 and 111, be used for realizing manual key 9,90 take turns 1 with actuating, equipment and the disconnection of combination, 2, joint between 3, described coupling device is included in the actuating, equipment of combination and the thickness of disconnection wheel, and is designed to finally taking turns and activating key and depart from (seeing Fig. 6) described in equipment motion.
As shown in Figure 2, the Mi of mechanism of the present invention is illustrated in disconnecting corresponding initial condition with circuit breaker.Spring 5 and 6 is disengaged, and closed-lock finger 8 engages with output and 4 lockings of closed wheel, and disconnect locking finger 7, is freely.
Below the manual equipment operation for the Mi of mechanism:
-with reference to Fig. 6 to Fig. 6 E, as described below actuating key 9 is assemblied in actuator shaft 10.
Be below the closed operational cycle that then disconnects the high pressure or the medium voltage switchgear equipment that are engaged to control device, described control device comprises the Mi of mechanism of the present invention.
Pivoting action and disengaging by latch 80 with output and closed wheel 4, open or trigger closed-lock finger 8, and this can open closing spring 6, thereby also make output and closed wheel 4 to rotate in the clockwise direction.Because output and closed wheel are engaged to circuit breaker, so turning clockwise, output and closure wheel cause the closure of circuit breaker.In this new latched position, mechanism of the present invention is in the state corresponding with breaker closing, closing spring 6 is released or removes, disconnect the compressed or equipment of spring 5, closed-lock finger 8 is freely, and, disconnect on actuating, equipment and the disconnection wheel 1 that locks finger and be locked in combination (seeing Fig. 5 A).
Recess 100 from actuating, equipment and the disconnection wheel 1 of combination is opened or is discharged and disconnects locking finger 7, and this causes it to rotate in the counterclockwise direction.Arrange like this actuating of combination, equipment and disconnection wheel 1 and output and closed wheel 4 coupling devices that are bonded together 13,41, make actuating, equipment and disconnection wheel 1 rotation in the counterclockwise direction of combination also cause output and 4 (and also causing being engaged to thus its circuit breaker) of closed wheel to be rotated on this equidirectional.
Last at this trip, closed-lock finger 8 automatically lock and is bonded on output and closed wheel on 4.In this new latched position, mechanism of the present invention is in disconnecting corresponding state with circuit breaker, disconnection spring 5 and closing spring 6 are released or remove, and closed-lock finger 8 is locked in output and closed wheel 4, and disconnection locking finger 7 is (to see Fig. 5 B) freely.
Fig. 6 shows and actuating, equipment and disconnection wheel 1,2 in manually equipment key 9 and combination, engages the part of the mechanism Mi relevant with the device departing between 3.
In this figure, can see, the pin portion 90 of manual key is contained in to be limited at and controls finger 11 and (be pivotally mounted on actuating, equipment and the disconnection wheel 1 of combination, 2, on 3) and this take turns in the space S between itself, finger 11 also in this position with actuating, equipment and the disconnection wheel 1,2 of combination, 3 contacts engage, and this position is nearest and is called as control position.
Control in the height E of actuating, equipment and disconnection wheel 1,2,3 that finger 11 is positioned at combination completely.
Another element (being abutment 111) is fixed to body (not shown).This abutment 111 is also positioned in the actuating, equipment of combination and the height E of disconnection wheel 1,2,3 completely.
When operator takes turns actuating, equipment and the disconnection of manually equipping key 9 insertion combinations at 1,2,3 o'clock, pin 90 enters space S.
Operator is rotary manual key 9 (Fig. 6 A) in the clockwise direction as described above.
Last in give rotation, lever element 110 directly engages (seeing Fig. 6 B) with fixing abutment 111.In the execution mode shown in Fig. 6 A and Fig. 6 B, rotation is 65 °.In the position of rotation shown in Fig. 6 B, the actuating of combination, equipment and disconnection wheel 1,2,3 are disconnected subsequently locking finger 7 and pin.
The actuating, equipment and the disconnection wheel 1 that by operator, are passed to manual key 9 and are passed to thus combination, 2, the actuating of the combination that 3 moment of torsion causes, equipment and disconnection wheel 1,2, the conjugation of the direct joint of the lever element 110 on 3 rotation and mechanical abutment 111, there is the actuating, equipment and the disconnection wheel 1 that continue to make combination, 2,3 rotate and cause lever element 110 at actuating, equipment and the disconnection wheel 1 of combination, the synchronous effect of securing member 1100 place's pivotables of the control finger 11 on 2,3 (seeing Fig. 6 C and Fig. 6 D).
Last at definite rotating distance, the pivoting action of lever element 110 and the pivoting action of controlling thus finger 11, by controlling finger, be placed in the position that is called as ejected position, pin 90 is freely in this position, because it no longer remains on actuating, equipment and the disconnection wheel 1 of finger and combination, in space between 2,3, (see Fig. 6 E).In the stage shown in Fig. 6 E, the rotation amount producing with respect to the initial position shown in Fig. 6 A is 75 °.
In software, successfully tested the dynamic property of double-locking mechanism of the present invention (Mi).
Also by using the digital modeling software of selling with trade mark ANSYS successfully to prove critical piece itself (, the actuating of combination, equipment and disconnection wheel 1 and output and closed wheel 4, helical spring 5 and 6, and disconnect locking finger 7 and closed-lock finger 8) mechanical strength.
In addition, successfully tested the prototype (prototype) of double-locking mechanism.
Compare with the M of mechanism of the prior art, the Mi of double-locking mechanism of the invention described above has many advantages, for example following these advantages:
-be very easy to realize the kinematic chain of mechanism, thus its output is high,
-limited the quantity that forms the stacked components of mechanism, thus it is compacter,
-limited number of components, its cost.
Claims (8)
1. one kind for having the locking mechanism (Mi) of the high pressure of at least one circuit breaker or the control device of medium voltage switchgear equipment, and described locking mechanism comprises:
-Control Shaft (12);
The-the first revolving part (1,2,3), the actuating, equipment and the disconnection that are called as combination are taken turns, and it is fixed to described Control Shaft (12) and is suitable for rotating by manual key;
The-the second revolving part, is called as output and closed wheel (4), and it is installed to be around described Control Shaft (12) and rotates freely, and an output shaft is fixed to described output and closed wheel;
-two helical springs (5, 6), one of them is called as disconnection spring (5), described disconnection spring is suitable for by discharge to disconnect the circuit breaker of described switchgear from compressive state, another in described helical spring is called as closing spring (6), described closing spring is suitable for by discharge the circuit breaker of closed described switchgear from compressive state, each in the inner of described disconnection spring (5) and closing spring (6) is fixed to described Control Shaft (12), simultaneously, the outer end of described disconnection spring (5) is fixed to the body of described mechanism, and the outer end of described closing spring (6) is fixed to described output and closed wheel (4),
-closed-lock device (8) and disconnection locking device (7), it is all installed to be pivoting action between two states, one in described state is such state: compression in the time of by described closing spring (6) and described disconnection spring (5), make a described locking device can stop the motion of described output and closed wheel (4), then the actuating, equipment and the disconnection wheel (1 that stop described combination, 2,3) motion, described simultaneously compression by rotary manual key in one direction realized; Another state in described state, by the release in succession of described closing spring (6) and described disconnection spring (5), allows actuating, equipment and the rotation in the opposite direction of disconnection wheel of described output and closed wheel and described combination in succession; And
-for described manual key (9) and actuating, equipment and the disconnection of described combination are taken turns to the coupling device (11 being bonded together, 110,111), described coupling device is included in the actuating, equipment of described combination and the thickness (E) of disconnection wheel, and be designed to, at the last of equipment motion, the actuating of described combination, equipment and disconnection are taken turns to (1,2,3) depart from described manual key (9).
2. locking mechanism according to claim 1 (Mi), described locking mechanism forms a pair of locking mechanism, wherein, described locking device is comprised of two separated fingers, a finger is called as closed-lock finger (8), it is installed to be towards described output and closed wheel pivoting action, and be suitable for stoping in the compressed position of described closing spring the motion of described output and closed wheel, another finger is called as disconnection locking finger (7), it is installed to be the actuating towards described combination, equipment and disconnection wheel pivoting action, and be suitable for stoping in the compressed position of described disconnection spring the actuating of described combination, the motion of equipment and disconnection wheel.
3. locking mechanism according to claim 2 (Mi), wherein, described disconnection locking finger (7) and described closed-lock finger (8) are installed to be pivoting action in common axis.
4. locking mechanism according to claim 1 (Mi), wherein, described closed-lock device is suitable for finally automatically being discharged at equipment operation.
5. according to the locking mechanism described in any one in the claims (Mi), wherein, at least one in the actuating of described combination, equipment and disconnection wheel (1,2,3) and described output and closed wheel (4) made by thermoplastic.
6. according to the locking mechanism described in any one in claim 1 to 4 (Mi), wherein, for the actuating of finally working to realize described manual key (9) and described combination at equipment operation, equipment and disconnection wheel (1, 2, 3) joint between and the device of disengaging comprise fixing mechanical abutment (111) and finger, described device is included in the actuating of described combination, in the thickness (E) of equipment and disconnection wheel, described finger is called as controls finger (11), described control finger is installed to be between the two positions the actuating in described combination, equipment and the upper pivoting action of disconnection wheel, described in one of them, position is called as control position, actuating in described control finger and described combination, equipment and disconnection wheel (1, 2, 3) between, be limited with space (S), make it possible to a part for described manual key (9) (90) to insert in described space, thereby stop the actuating of described combination, equipment and the rotation of disconnection wheel, realize thus described joint, described in another, position is called as ejected position, the described part (90) of described manual key (9) is freely in this ejected position, finally to realize described disengaging at equipment operation, after rotatablely moving of described manual key causes compressing and locks described disconnection and closing spring, by described control finger (11) or the element (110) that is fixed to described control finger, the joint on described mechanical abutment (111) produces the transformation from control position to ejected position.
7. locking mechanism according to claim 6 (Mi), wherein, by being fixed on the direct contact of the lever element (110) on described control finger (11), obtain the described joint on mechanical abutment (111), the lever arm between the point that the junction point of described lever element (110) on described control finger and described lever element (110) are fixed to described control finger is in order to be decreased to predetermined value by the power on the end of described manual equipment key (9).
8. high pressure or the medium voltage switchgear equipment with at least one circuit breaker, comprise the control device having according to the locking mechanism described in any one in claim 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0950011A FR2940850B1 (en) | 2009-01-05 | 2009-01-05 | MECHANISM HAVING A HAND OR HIGH VOLTAGE EQUIPMENT CONTROL HAVING IMPROVED COMPACITY AND COST |
| FR0950011 | 2009-01-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101770879A CN101770879A (en) | 2010-07-07 |
| CN101770879B true CN101770879B (en) | 2014-03-19 |
Family
ID=40996829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910261384.1A Expired - Fee Related CN101770879B (en) | 2009-01-05 | 2009-12-24 | Locking mechanism for control device of a high- or medium-voltage switchgear |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2204828B1 (en) |
| CN (1) | CN101770879B (en) |
| ES (1) | ES2541463T3 (en) |
| FR (1) | FR2940850B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3086455B1 (en) | 2018-09-20 | 2020-08-14 | Schneider Electric Ind Sas | ACTUATION SYSTEM FOR ELECTRICAL APPLIANCE SWITCH |
| FR3089049B1 (en) * | 2018-11-26 | 2020-11-06 | Schneider Electric Ind Sas | MECHANISM FOR THE CLOSING AND OPENING COMMAND OF A POWER-CUTTING DEVICE FOR SWITCHES |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1770969A (en) * | 2004-10-14 | 2006-05-10 | 捷讯研究有限公司 | Method of mounting thumbwheel switch on printed circuit board and handheld electronic device incorporating same |
| EP1942713A1 (en) * | 2007-01-03 | 2008-07-09 | Delphi Technologies, Inc. | One-piece electromagnetic shield having mechanical attachment features |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3672233A (en) * | 1970-07-06 | 1972-06-27 | Clare & Co C P | Actuator mechanism |
| DE7143984U (en) * | 1971-11-23 | 1972-02-03 | Siemens Ag | Drive for an electrical power switch |
| US20060087492A1 (en) * | 2004-09-01 | 2006-04-27 | Speed Tech Corp. | Fixture device for a roller construction module |
| US7368677B2 (en) * | 2005-12-14 | 2008-05-06 | Eaton Corporation | Reverse bias hatchet reset spring |
-
2009
- 2009-01-05 FR FR0950011A patent/FR2940850B1/en not_active Expired - Fee Related
- 2009-12-24 CN CN200910261384.1A patent/CN101770879B/en not_active Expired - Fee Related
- 2009-12-28 EP EP09180797.4A patent/EP2204828B1/en not_active Not-in-force
- 2009-12-28 ES ES09180797.4T patent/ES2541463T3/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1770969A (en) * | 2004-10-14 | 2006-05-10 | 捷讯研究有限公司 | Method of mounting thumbwheel switch on printed circuit board and handheld electronic device incorporating same |
| EP1942713A1 (en) * | 2007-01-03 | 2008-07-09 | Delphi Technologies, Inc. | One-piece electromagnetic shield having mechanical attachment features |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2204828B1 (en) | 2015-04-08 |
| CN101770879A (en) | 2010-07-07 |
| EP2204828A1 (en) | 2010-07-07 |
| ES2541463T3 (en) | 2015-07-20 |
| FR2940850B1 (en) | 2011-02-11 |
| FR2940850A1 (en) | 2010-07-09 |
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