CN105513891A - Sulfur hexafluoride gas density relay, shockproof method and shockproof device - Google Patents
Sulfur hexafluoride gas density relay, shockproof method and shockproof device Download PDFInfo
- Publication number
- CN105513891A CN105513891A CN201610051375.XA CN201610051375A CN105513891A CN 105513891 A CN105513891 A CN 105513891A CN 201610051375 A CN201610051375 A CN 201610051375A CN 105513891 A CN105513891 A CN 105513891A
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- China
- Prior art keywords
- rotating part
- gas density
- sensitive switch
- sulfur hexafluoride
- driving lever
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/28—Compensation for variation of ambient pressure or temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
Abstract
The invention discloses a shockproof device of a sulfur hexafluoride gas density relay, the sulfur hexafluoride gas density relay and a method for improving the shockproof performance of the sulfur hexafluoride gas density relay. When impact or shock is exerted on the gas density relay, a stirring rod of the shockproof device makes a signal generator away from the misoperation position when a rotating piece swings and a contact operation arm of each microswitch is stirred to the pressure increase direction, and therefore it is avoided that a signal adjusting mechanism triggers the signal generator by mistake when the gas density is normal, and the shockproof performance of the relay is greatly improved.
Description
Technical field
The present invention relates to a kind of gas density relay, particularly relate to a kind of high antivibration sulfur hexafluoride gas density relay, a kind of antivibration mount of sulfur hexafluoride gas density relay and the method for raising sulfur hexafluoride gas density relay resistance to shock.
Background technology
At present, in sulfur hexafluoride electrical equipment, generally adopt contact be sensitive switch without oil type gas density relay to monitor sulfur hexafluoride gas density, as Chinese patent or patent application CN1971795B, CN2881935Y, CN2870137Y, CN2809852Y, CN1996529B, CN101192484B, CN101387891B, CN102013357A, gas density relay disclosed in CN201804791U and CN101847544A (as depicted in figs. 1 and 2), generally comprise joint 1, with the movement 2 of display enlarger, housing 3, dial 4, pointer 5, Baden's pipe 6, temperature compensating element 7, junction block 8, sensitive switch 91-93, location-plate 11, fixed head 12, electric wire 13, regulating part 141-143, connecting rod 15, crossbeam 16, extension 162, watch crystal 17, case 18, pedestal 19, sulfur hexafluoride gas feed tube 20, end seat 24 and printed circuit board and.Wherein: joint 1, junction block 8, watch crystal 17, case 18 and pedestal 19 are separately fixed on housing 3; Movement 2 and fixed head 12 are arranged on pedestal 19 respectively, and pointer 5 and dial 4 are separately fixed on movement 2; One end of Baden's pipe 6 is welded on pedestal 19, the other end is connected with one end of temperature compensating element 7 by end seat 24, the other end of temperature compensating element 7 is connected with crossbeam 16, and one end of crossbeam 16 is connected with one end of connecting rod 15, and the other end of connecting rod 15 is connected with movement 2.Extension 162 is the extension of crossbeam 16, extension 162 is fixed with regulating part 141,142,143.Sensitive switch 91,92,93 welds on a printed circuit board respectively, and printed circuit board is arranged on fixed head 12, and fixed head 12 is arranged on again on pedestal 19.Sensitive switch 91,92,93 is fixed on the below of regulating part 141,142,143 correspondingly.Each sensitive switch is respectively equipped with operating grip 911,921,931.Location-plate 12 rear end is fixing on the movement 2, and front end extends to the below of the end seat 24 be connected with temperature compensating element 7 by Baden's pipe 6.The contact of sensitive switch 91,92,93 is connected to junction block 8 by electric wire 13 from printed circuit board, and junction block 8 is fixed on housing 3.
Although the sensitive switch that these gas density relays above-mentioned adopt has the advantage of good electric property, but because the length of extension 16 is longer, and be a cantilever beam, when operating sulphur hexafloride circuit breaker, causing extension 16 to vibrate very large, and then causing sulfur hexafluoride gas density relay to occur misoperation, even occur damaging sensitive switch, lose performance completely, resistance to shock is poor in a word, is difficult to guarantee system reliably working.
In the disclosed gas density relay of patent CN1996529A, CN101192484A (see Fig. 3 and Fig. 4), the sensitive switch adopted has the advantage of good electric property, but because the length of crossbeam and extension thereof is longer, and be a cantilever beam, when operating sulphur hexafloride circuit breaker, crossbeam is caused to vibrate very large, and then cause sulfur hexafluoride gas density relay to occur misoperation, that is its resistance to shock is bad, system reliably working can not be ensured, bring great hidden danger to the safe operation of electrical network.These sulfur hexafluoride gas density relays can not meet the reclosing requirement of sulphur hexafloride circuit breaker simultaneously, namely when the blowing pressure (density) is below alarm pressure value, the shock test of 50g, 11ms can not be born, because now locking contact misoperation can occur.Such as: the density monitor of 0.6/0.52/0.5, the shock test of 50g, 11ms is carried out when gas pressure (density) drops to actuation of an alarm point, can there is misoperation in locking contact, carried out locking to switch, can not meet the reclosing requirement of sulphur hexafloride circuit breaker.Its resistance to shock is also undesirable in a word, is difficult to guarantee system reliably working.
Also displacement amplifying mechanism is comprised at the disclosed gas density relay of patent CN201804791U and CN101847544A (see Fig. 5 and Fig. 6), the initiating terminal of this displacement amplifying mechanism is connected with the other end of temperature compensating element, and amplify the contact operating grip that end drives sensitive switch, make the contact on sensitive switch or disconnection; When gas density value changes, Baden's pipe and temperature compensating element produce displacement, and this is displaced through after displacement amplifying mechanism amplifies and passes to sensitive switch, makes sensitive switch send corresponding signal, completes the function of density monitor.But, when sulphur hexafloride circuit breaker carries out breaking-closing operating, vibration can be produced to Baden's pipe and temperature compensating element, Baden can be caused to manage for this vibration and temperature compensating element is subjected to displacement, this displacement passes to sensitive switch after also being amplified by displacement amplifying mechanism, makes sensitive switch send corresponding signal.Will produce misoperation like this, that is its resistance to shock is bad, can not ensure system reliably working, brings great hidden danger to the safe operation of electrical network.These sulfur hexafluoride gas density relays can not meet the reclosing requirement of sulphur hexafloride circuit breaker simultaneously, namely when the blowing pressure (density) is below alarm pressure value, the shock test of 50g, 11ms can not be born, because now locking contact misoperation can occur.Such as: the density monitor of 0.6/0.52/0.5, the shock test of 50g, 11ms is carried out when gas pressure (density) drops to actuation of an alarm point, can there is misoperation in locking contact, carried out locking to switch, can not meet the reclosing requirement of sulphur hexafloride circuit breaker.And the problem of patent CN2809852Y is similar to patent CN101847544A, also be can vibration cause be displaced through displacement amplifying mechanism amplify after pass to sensitive switch (namely by control sector gear pass to controller mandrel, sensitive switch is passed to again) through controller mandrel, be exaggerated the displacement vibrated and cause so widely, be equivalent to make vibration become more obvious.Because when sulphur hexafloride circuit breaker breaking-closing operating, vibration is very large, need the better gas density relay of resistance to shock especially, above-mentioned gas density monitor then can not meet the demands.
In addition, the disclosed a kind of gas density relay of patent CN101387891B (see Fig. 7), contact also uses sensitive switch, also be provided with the regulating part 141 to 143 corresponding with sensitive switch and contact operating axis 16, wherein, rotating shaft 24 in the rotating shaft 24 that one end of contact operating axis 16 is connected to the sector gear of movement 2 and with this sector gear is rotated, on this contact operating axis 16, compartment of terrain radial direction offers the threaded perforations corresponding with sensitive switch 91 to 93 along its length, regulating part 141 to 143 is plugged in threaded perforations and its end correspondingly and is resisted against on the motion arm of sensitive switch 91-93.Rotated by the contact operating axis 16 be fixed in the rotating shaft 24 of sector gear, make the regulating part 141 to 143 be fixed on this contact operating axis 16 drive sensitive switch 91 to 93 action.But, because the rotational angle of the rotating shaft 24 of sector gear is very little, the precision of product is reduced.More seriously, because the actuating length of sensitive switch motion arm is short, and regulating part 141 to 143 employing is adjustment screw, when Baden's pipe 6 moves, the sector shaft 24 of movement 2 is driven to rotate, adjustment screw can be made to rotate the motion arm encountering sensitive switch, drive the moving contact of motion arm push switch, when the motion arm of the end face with sensitive switch that turn to adjustment screw is vertical, adjustment screw is stuck and can not be rotated further, so be difficult to the density monitor of the gamut realizing-0.1 to 0.9MPa, particularly be difficult to the display realizing being initiated with-0.1MPa, like this, just cannot show when vacuumizing, be difficult to apply.
In sum, to the innovation of sulfur hexafluoride gas density relay, the antivibration effect especially improving sulfur hexafluoride gas density relay, be still in demand.
Summary of the invention
For current gas density relay Problems existing, the invention provides a kind of sulfur hexafluoride gas density relay antivibration mount, improve the method for sulfur hexafluoride gas density relay antivibration effect and a kind of sulfur hexafluoride gas density relay.
The present invention first aspect is to provide a kind of antivibration mount of sulfur hexafluoride gas density relay, comprise: holder, the first rotating part, the first elastomeric element and driving lever, wherein, described holder is provided with the rotating shaft of stretching out, first rotating part is connected to also can around described axis of rotation in described rotating shaft, and be that fulcrum forms lever with rotating shaft, first end connects described driving lever, the center of gravity of the first rotating part is positioned on the second end, and the elastic force of described first elastomeric element and the gravity of the first rotating part make the first rotating part keep balance by lever principle.
In a kind of more preferred embodiment, described holder and the first rotating part are two parallel plates, and driving lever and rotating shaft are all perpendicular to holder and the first rotating part.
In a kind of more preferred embodiment, it is that driving lever reserves zone of action that described holder is provided with breach.
In a kind of more preferred embodiment, described antivibration mount also comprises the second rotating part and the second elastomeric element, and the second rotating part is connected in rotating shaft and also can rotates around the axis; Described second rotating part can promote described first rotating part and rotate around the axis; The center of gravity of the second rotating part is not positioned at its center of rotation.
Wherein, described first rotating part and the second rotating part can be shared rotating shafts, also can be being connected in different rotating shafts independently.
Or in another kind of more preferred embodiment, described antivibration mount is involving vibrations part and the second elastomeric element also, and vibrating member is connected to the first rotating part side by the second elastomeric element; Described vibrating member can promote described first rotating part when vibrating and rotate around the axis.
More preferably, described first rotating part is provided with elastic component towards the edge of the second rotating part or vibrating member, and/or the second rotating part or vibrating member are provided with elastic component towards the edge of the first rotating part.
In a kind of more preferred embodiment, the motion amplitude of the second rotating part or vibrating member is greater than the first rotating part.In more preferred embodiment, described first elastomeric element coefficient of elasticity is preferably greater than the coefficient of elasticity of the second elastomeric element.
In a kind of more preferred embodiment, described holder is provided with connector, and the second elastomeric element is connected between connector and the second rotating part or vibrating member.
In a kind of more preferred embodiment, described first rotating part is between the second rotating part and holder.
In a kind of more preferred embodiment, described second rotating part is the plate being parallel to described holder and described first rotating part.
In a kind of more preferred embodiment, described holder is provided with the limit element of restriction first rotating part and/or the second rotating part maximum rotation amplitude, and/or the limit element of constrained vibration part maximum range of motion.
In a kind of more preferred embodiment, described holder, the first rotating part, the second rotating part are the plate be parallel to each other, and connector is positioned at below the breach of holder, and rotating shaft is positioned at the part in the middle part of holder or more than middle part.
In a kind of more preferred embodiment, driving lever is positioned at the first end of the first rotating part, and the second end of the first rotating part is provided with projection, and described second rotating part and/or vibrating member realize promotion first rotating part by promotion projection and rotate around the axis.
In a kind of more preferred embodiment, described first rotating part forms promotion district towards a lateral edges of the second rotating part and/or vibrating member, and described second rotating part and/or vibrating member can contact described promotion district and drive the rotation of the first rotating part.In more preferred embodiment, described promotion district is provided with flexible member, and/or described second rotating part and/or vibrating member are towards the first rotating part and be preferably and promote the edge in district or end, are provided with flexible member.
In a kind of more preferred embodiment, described second rotating part is boundary with rotating shaft, is divided into first end and the second end, and second elastomeric element one end is connected on connector, and the other end is connected on the side of the second end; First end is connected with driver part, and the second rotating part is promoted by described driver part or pulls the rotation of the first rotating part, is more preferably the rotation promoting or pull the first rotating part first end.
The present invention second aspect is to provide a kind of sulfur hexafluoride gas density relay, comprise the antivibration mount described in the present invention first aspect, also comprise the sensitive switch be arranged side by side, the motion arm of described sensitive switch is towards same direction, the sensitive switch side be arranged side by side, be provided with described holder and described first rotating part, driving lever extends along the sensitive switch be arranged side by side, and can stir the motion arm of sensitive switch when the first rotating part rotates.
Wherein, can be that the motion arm of sensitive switch is between sensitive switch body and driving lever; Or driving lever is between motion arm and sensitive switch body; Or can be multiple driving lever, motion arm be located between described multiple driving lever; And be preferably the motion arm of sensitive switch between sensitive switch body and driving lever.
Wherein, described in stir can be promote or pull, or two kinds of effects exist simultaneously.
In an advantageous embodiment, the second elastomeric element can be connected on other fixed positions in sulfur hexafluoride gas density relay, or is connected on holder.
In an advantageous embodiment, described fixed seating is between the first rotating part and the sensitive switch be arranged side by side, and described driving lever strides across fixture and extends along the sensitive switch be arranged side by side.
In a kind of more preferred embodiment, in described sulfur hexafluoride gas density relay, be filled with shock liquid.
In a kind of more preferred embodiment, described sensitive switch can also help formula electric contact to substitute by magnetic.
In an advantageous embodiment, described sulfur hexafluoride gas density relay also comprises housing, the pedestal be arranged in housing, end seat, Baden's pipe, temperature compensating element, movement, Signal Regulation mechanism, described end seat is connected with one end of described Baden pipe, and the other end of described Baden pipe is connected on described pedestal.
In a kind of more preferred embodiment, second elastomeric element one end is connected in housing, and the other end is connected on the second rotatable parts.
In a kind of more preferred embodiment, described sulfur hexafluoride gas density relay comprises housing, be arranged on housing in and separate signal control portion and indicating value display section, wherein:
Described signal control portion comprises the first pedestal, first end seat, first Baden's pipe, the first temperature compensating element, Signal Regulation mechanism; One end of described first Baden's pipe is connected on described first pedestal, and the other end of described first Baden's pipe is connected with one end of described first temperature compensating element by described first end seat;
Described indicating value display section comprises second Baden's pipe, the second temperature compensating element, the second pedestal, the second end seat, movement and pointer, one end of described second Baden's pipe is connected on described second pedestal, the other end of described second Baden's pipe is connected with one end of described second temperature compensating element by described second end seat, the other end of described second temperature compensating element is connected with the initiating terminal of described movement, and described pointer is connected with the central shaft of described movement.
Third aspect of the present invention is to provide a kind of method improving sulfur hexafluoride gas density relay resistance to shock, comprising:
Sulfur hexafluoride gas density relay has been arranged side by side sensitive switch, and the motion arm of described sensitive switch, towards same direction, is provided with the first rotating part on the sensitive switch side be arranged side by side; First rotating part is connected in rotating shaft, and is that boundary is divided into first end and the second end with rotating shaft, and the center of gravity of the first rotating part is positioned at the second end, and first end is connected with driving lever, and driving lever extends along the sensitive switch be arranged side by side; First rotating part connects the first elastomeric element, and the elastic force of the first elastomeric element and the gravity of the first rotating part make the first rotating part keep balance by lever principle;
When there is vibration in sulfur hexafluoride gas density relay, first rotating part is under effect of inertia, the effect overcoming the elastic force of the first elastomeric element and the gravity of the first rotating part starts to rotate around the axis, in described rotation process, the motion arm of sensitive switch stirred by driving lever, makes sensitive switch away from the position that misoperation occurs;
In vibration disappearance process, under the first rotating part gravity, the first elastomeric element elastic force and lever principle effect, the first rotating part rotates to its initial position and recovers its initial position gradually, and the effect of driving lever to motion arm is decreased to disappearance gradually.
In a kind of more preferred embodiment, described method comprises:
Sulfur hexafluoride gas density relay is also provided with the second rotating part, the second elastomeric element, and the second rotating part is connected in rotating shaft, and rotates around the axis, and the center of gravity of the second rotating part is not positioned at its center of rotation;
When sulfur hexafluoride gas density relay is subject to vibrating, the Action of Gravity Field of elastic force and the first rotating part that the first rotating part overcomes the first elastomeric element under effect of inertia starts to rotate around the axis, in the rotation process of the first rotating part, the motion arm of sensitive switch stirred by driving lever, makes sensitive switch away from the position that misoperation occurs; Simultaneously the gravity of the second rotating part elastic force and the second rotating part of overcoming the second elastomeric element under effect of inertia starts to rotate around the axis, and the second rotatable parts rotation amplitude is larger, thus in rotation process, contact the first rotating part and/or driving lever, and giving the first rotating part and/or the First Driving Force of driving lever in rotation direction, continuation driving first rotating part and/or driving lever are stirred motion arm or are maintained the position of motion arm;
In vibration disappearance process, this first rotating part rotates to its initial position under its gravity, the first elastomeric element elastic force and lever principle effect, the effect of driving lever to motion arm progressively reduces, and is giving the second rotating part and reverse the second actuating force of above-mentioned First Driving Force; Second rotating part rotates to its initial position and progressively returns to its initial position under the elastic force and described second actuating force effect of its gravity and the second elastic component, second rotating part postpones the recovery of the first rotating part by reaction force simultaneously, makes sensitive switch extend the time of the position away from generation misoperation;
While the second rotating part returns to its initial position, before or after, the first rotating part returns to its initial position, and driving lever is to the event resolves of motion arm.
In a kind of more preferred embodiment, described method comprises:
Sulfur hexafluoride gas density relay is also provided with vibrating member, the second elastomeric element, and vibrating member is connected to the first rotating part side by the second elastomeric element; Described vibrating member can promote described first rotating part when vibrating and rotate around the axis;
When sulfur hexafluoride gas density relay is subject to vibrating, the Action of Gravity Field of elastic force and the first rotating part that the first rotating part overcomes the first elastomeric element under effect of inertia starts to rotate around the axis, in the rotation process of the first rotating part, the motion arm of sensitive switch stirred by driving lever, makes sensitive switch away from the position that misoperation occurs; Simultaneously the gravity of the vibrating member elastic force and vibrating member that overcome the second elastomeric element under effect of inertia starts vibration, thus in vibration processes, contact the first rotating part and/or driving lever, and giving the first rotating part and/or the First Driving Force of driving lever in rotation direction, continuation driving first rotating part and/or driving lever are stirred motion arm or are maintained the position of motion arm; In vibration disappearance process, first rotating part rotates to its initial position under its gravity, the first elastomeric element elastic force and lever principle effect, the effect of driving lever to motion arm progressively reduces, and is giving vibrating member and reverse the second actuating force of above-mentioned First Driving Force; Vibrating member progressively returns to its initial position to the motion of its initial position under the elastic force and described second actuating force effect of its gravity and the second elastic component, vibrating member postpones the recovery of the first rotating part by reaction force simultaneously, makes sensitive switch extend the time of the position away from generation misoperation;
While vibrating member returns to its initial position, before or after, the first rotating part returns to its initial position, and driving lever is to the event resolves of motion arm.
In a kind of more preferred embodiment, the method for the invention adopts the antivibration mount described in first aspect.
In a kind of more preferred embodiment, the sulfur hexafluoride gas density relay described in the method for the invention, adopts the sulfur hexafluoride gas density relay described in second aspect.
In an advantageous embodiment, vibration of the present invention can be the vibration because gas shock produces, and especially sulfur hexafluoride gas pipe switch is opening or closing the vibration that in process, gas shock produces.
In a kind of more preferred embodiment, the direction that motion arm increases to gas density is stirred by described driving lever.
In a kind of more preferred embodiment, described second rotating part can be that Direct driver first rotating part drives the first rotating part to drive driving lever or Direct driver driving lever; Equally, driving lever or the first rotating part also directly or indirectly can give the second rotating part reaction force.
The invention provides a kind of antishock device, a kind of sulfur hexafluoride gas density relay and improve the method for its antivibration effect, by increasing the anti-error operation mechanism with delay function, make its resistance to shock higher, and the contacts of signal generator and electric property better, long working life, precision is high.Gas density relay of the present invention comprises the various gas density relays such as sulfur hexafluoride gas density relay, sulfur hexafluoride gas mixture density monitor, nitrogen gas density monitor, dry air gas density relay, carbon dioxide density monitor, compressed air density monitor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first pointer sulfur hexafluoride gas density relay of prior art;
Fig. 2 is the partial side view of the gas density relay of pointer sulfur hexafluoride shown in Fig. 1;
Fig. 3 is the structural representation of the second pointer sulfur hexafluoride gas density relay of prior art;
Fig. 4 is the partial side view of the gas density relay of pointer sulfur hexafluoride shown in Fig. 3;
Fig. 5 is the structural representation of the third pointer sulfur hexafluoride gas density relay of prior art;
Fig. 6 is the partial side view of the gas density relay of pointer sulfur hexafluoride shown in Fig. 5;
Fig. 7 is the structural representation of the 4th kind of pointer sulfur hexafluoride gas density relay of prior art;
Fig. 8 is the structural representation of the first sulfur hexafluoride gas density relay of the present invention;
Fig. 9 is the partial side view of sulfur hexafluoride gas density relay of the present invention shown in Fig. 8;
Figure 10 is the partial rear view (normal condition) of the first sulfur hexafluoride gas density relay of the present invention;
Figure 11 is the partial rear view (during impact state) of the first sulfur hexafluoride gas density relay of the present invention;
Figure 12 is antivibration mount structural representation in the first sulfur hexafluoride gas density relay of the present invention;
Figure 13 is the partial side view of the antivibration mount in a kind of sulfur hexafluoride gas density relay of the present invention;
Figure 14 is the structural representation of the second sulfur hexafluoride gas density relay of the present invention;
Figure 15 is the middle antivibration mount structural representation of the third sulfur hexafluoride gas density relay of the present invention;
Figure 16 is the middle antivibration mount structural representation of the 4th kind of sulfur hexafluoride gas density relay of the present invention.
Embodiment
In order to understand technical scheme of the present invention better, be also described in detail by reference to the accompanying drawings below by specific embodiment.
Embodiment 1
With reference to Fig. 8 to Figure 13, sulfur hexafluoride gas density relay in the first embodiment of the present invention, primarily of joint 1, movement 2, housing 3, dial 4, pointer 5, Baden's pipe 6, temperature compensating element 7, junction block 8, three sensitive switches 91,92,93, printed circuit board 10, location-plate 11, fixed head 12, electric wire 13, Signal Regulation mechanism (adjusting rod 141,142,143), connecting rod 15, crossbeam 16, watch crystal 17, cover circle 18, pedestal 19, deferent 20, antivibration mount 21, sensitive switch reinforcing mechanisms 23, the composition such as end seat 24.
Wherein, with reference to Fig. 8 and Fig. 9, joint 1 is fixed on housing 3, and movement 2 is fixed on pedestal 19; One end of Baden's pipe 6 is welded on pedestal 19 and is also communicated with it, and the other end is connected with one end of temperature compensating element 7 by end seat 24, and the other end of temperature-compensating sheet 7 is connected with crossbeam 16; Crossbeam 16 is fixed with three adjusting rods 141,142,143 of Signal Regulation mechanism; Crossbeam 16 is connected with connecting rod 15 again, and connecting rod 15 is connected with movement 2 again; Three sensitive switches 91,92,93 are separately fixed on printed circuit board 10, printed circuit board 10 is fixed on fixed head 12, fixed head 12 is arranged on again on pedestal 19, and three sensitive switch 91,92,93 correspondences are arranged on the top of each adjusting rod 141,142,143, the lower end attended operation arm 911,921,931 respectively of three sensitive switches 91,92,93; The contact of three sensitive switches 91,92,93 is all connected to the outer surface of junction block 8 from printed circuit board 10 by electric wire 13, junction block 8 is fixed on the outer surface of housing 3; Sensitive switch reinforcing mechanisms 23 is fixed on three sensitive switches 91,92,93, and the form of sensitive switch reinforcing mechanisms 23 is unrestricted, can be diversified; Location-plate 11 is fixing on the movement 2; Pointer 5 and dial 4 are separately fixed on movement 2; Watch crystal 17 and cover circle 18 are separately fixed on housing 3, and the mechanism of energy protective housing 3 inside invades from mechanical damage and dirt, rainwater; One end of deferent 20 is connected with pedestal 19, and positiver sealing, the other end of deferent 20 is connected with joint 1, and positiver sealing.
With reference to Figure 12 and Figure 13, antivibration mount 21 mainly comprises the first rotating part 211, rotating shaft 212, holder 213, driving lever 214, first spring 215 and follow-up time-delay mechanism, follow-up time-delay mechanism is made up of the second spring 217, second rotating part 216, one end of second spring 217 is connected to the second rotating part 216, the other end is connected on fixture 218, and fixture 218 is fixed on holder 213.
Second spring 217 one end is connected on the second rotating part 216, the other end to be fixed on holder 213 by fixture 218.Holder 213 is fixed on sensitive switch reinforcing mechanisms 23 or pedestal 19 or movement 2, rotating shaft 212 is fixed on holder 213, the center of rotation of the first rotating part 211 and center of gravity are made into non-concentric and the mode being positioned at the oblique below of center of rotation with center of gravity is arranged in rotating shaft 212, and driving lever 214 is vertically mounted on the upper end of rotating part 211 and is resisted against on the contact motion arm 911,921,931 of three sensitive switches 91,92,93.
In the present embodiment, first spring 215 one end is fixed, the other end connects on driving lever 214, on initial position, the first spring 215 can provide elastic force (also can not provide elastic force, namely elastic force is 0) for the first rotating part 211, first rotating part 211 with the point of connection rotating shaft 212 for fulcrum forms lever, driving lever 214 is at first end, and the center of gravity of the first rotating part 211 is at the second end, and gravity and elastic force (elastic force can be 0) make the first rotating part 211 realize balance by lever principle.
Similar, the center of rotation of the second rotating part 216 and center of gravity non-concentric are also arranged in described rotating shaft 212, and the elastic force of gravity and the second spring 217 (elastic force can be 0) makes the second rotating part 216 realize balance by lever principle.
In an advantageous embodiment, the coefficient of elasticity of the second spring 217 is less than the coefficient of elasticity of the first spring 215, therefore, second rotating part 216 more easily rotates when being subject to external force, but also can realize identical or similar effect by the design of the elastic force of gravity, elastomeric element and bar rod principle.Second rotating part 216 can encounter the first rotating part 211 or/and driving lever 214 when vibrating, such as, be provided with projection at the first rotating part 211 towards the side of the second rotating part 216, the second rotating part 216 to be exerted pressure active force to the first rotating part 211 after contact projection in rotation process.Or, second rotating part 216 is with the point of connection rotating shaft 212 for boundary, and first end is provided with driver part 219, in the second rotating part 216 rotation process, actuator 219 contacts first end or the driving lever 214 of the first rotating part 211, thus gives the first actuator 21 and/or driving lever 214 active force.Thus advance the first rotating part 211 and/or driving lever 214, the direction that the motion arm of each sensitive switch is increased toward gas density is stirred, or help the first rotating part 211 and/or driving lever 214 to maintain the position of motion arm 911-931, extend the time of the position making described sensitive switch away from generation misoperation.Second rotating part has follow-up delay function effect, and namely the second rotating part, the second elastomeric element constitute follow-up time-delay mechanism.By follow-up time-delay mechanism, extend the time of the position making described sensitive switch away from generation misoperation, thoroughly escape the impact that density monitor is vibrated, avoid described Signal Regulation mechanism sensitive switch described in false triggering when gas density is normal.
Holder is provided with locating part, for limiting the maximum rotation amplitude of the first rotating part and/or the second rotating part, locating part can be fixed on holder 213 or sensitive switch reinforcing mechanisms 23 or pedestal 19, as locating part in the present embodiment just directly adopts fixture 218, namely fixture 218 has the position-limiting action to the first rotating part 211.Above-mentioned design can be guaranteed when gas density relay is impacted or vibrate, and driving lever 214 can not damage the contact motion arm of sensitive switch.Fixture 218 also can be fixed in housing.In addition also another one locating part can be set, the amplitude of fluctuation (see Fig. 9-Figure 13) of the second rotating part 216 can be limited.
The first sulfur hexafluoride gas density relay of the present invention, its operation principle is based on flexible member Baden pipe 6, utilizes the pressure and temperature of temperature compensating element 7 to change to revise, the change of reaction sulfur hexafluoride gas density.Namely under the pressure effect of measured medium sulfur hexafluoride gas, owing to there being the effect of temperature-compensating sheet 7, the change of the gas density value in electric switch, force value also changes accordingly, the end of Baden's pipe 6 is forced to produce corresponding strain-displacement, pass to movement 2 by means of temperature-compensating sheet 7 and connecting rod 15, movement 2 passes to again pointer 5, then tested sulfur hexafluoride gas density value is indicated on dial 4.If electric switch has leaked gas, density value drops to a certain degree (reaching warning or locking value), Baden's pipe 6 produces corresponding to bottom offset, make crossbeam 16 to bottom offset by temperature-compensating sheet 7, adjusting rod 141,142,143 on crossbeam 16 is just gradually from corresponding sensitive switch 91,92,93, time to a certain extent, the contact of corresponding sensitive switch 91,92,93 is just connected, send corresponding signal (reporting to the police or locking), reach the sulfur hexafluoride gas density in the equipment such as monitoring and controlling electric switch, make electric equipment trouble free service.If the density value in electric switch increases, force value also raises accordingly, be elevated to a certain degree, Baden's pipe 6 also produces corresponding to top offset, by temperature-compensating sheet 7, make crossbeam 16 to top offset, the adjusting rod 141,142,143 on crossbeam 16 just to top offset and the contact promoting corresponding sensitive switch 91,92,93 disconnect, signal (report to the police or locking) is just removed.
When gas density relay is impacted or vibrate, center of gravity due to the first rotating part 211 of antivibration mount 21 is positioned at the oblique below of its center of rotation, and driving lever 214 is positioned at the upper end of the first rotating part 211, first rotating part 211 of anti-antivibration mount 21 will produce clockwise oscillation (see Figure 11 direction of arrow, be clockwise in fig. 11), driving lever 214 is three sensitive switches 91, 92, the contact motion arm 911 of 93, 921, 931 stir (see Figure 11) toward the direction that density (pressure) increases, make three sensitive switches 91, 92, 93 away from the position that misoperation occurs, simultaneously when gas density relay is impacted or vibrate, second rotating part 216 will produce clockwise oscillation (see Figure 11, the direction of arrow), because the second spring 217 coefficient of elasticity is little, therefore the second rotation 216 amplitudes of fluctuation are larger, the rotating part 211 of anti-error operation mechanism can be encountered or/and driving lever 214, active force is applied to the first rotating part 211 and/or driving lever 214, the direction that the contact motion arm of each sensitive switch is increased toward gas density is stirred, extend the time of the position making described sensitive switch away from generation misoperation, avoid Signal Regulation mechanism false triggering three sensitive switches 91 when gas density is normal, 92, 93.Namely when gas density relay is subject to the shock and vibration of sulphur hexafloride circuit breaker divide-shut brake generation, the driving lever 214 of antivibration mount 21 is swung by the first rotating part 211 and the contact motion arm 911 of each sensitive switch, 921, 931 stir toward the direction that gas density increases, make sensitive switch 91, 92, 93 away from the position that misoperation occurs, and by follow-up time-delay mechanism, extend and make sensitive switch 91, 92, 93 away from time of position that misoperation occurs, thoroughly escape the shock and vibration of sulphur hexafloride circuit breaker divide-shut brake generation to the impact of density monitor, avoid described Signal Regulation mechanism sensitive switch described in false triggering when gas density is normal.
The first sulfur hexafluoride gas density relay of the present invention utilizes the first rotating part 211 of antivibration mount 21 also can produce swing when impacting, and by follow-up time-delay mechanism, extend the time of the position making sensitive switch 91,92,93 away from generation misoperation, be equivalent to make signal generator (sensitive switch) escape impact, therefore substantially increase the resistance to shock of density monitor.And when not being subject to impacting, namely during normal condition, owing to there being the effect of the first spring 215, under gravity, spring force and lever principle effect, first rotating part 211 can not optionally rotate, driving lever 214 only near on the contact motion arm of each sensitive switch, thus can guarantee that the first rotating part 211 and driving lever 214 can not affect the normal work of the contact motion arm of sensitive switch.First rotating part 211 and driving lever 214 can be overall structures, and also can be mounted in Split type structure together, its shape can be various.
Above-mentioned sensitive switch and adjusting rod are not limited to three, can also be one, two, four or five.
The structure of the anti-error operation mechanism in addition with time-delay mechanism can be various, and form can be various.
Embodiment 2
See Figure 14, the second sulfur hexafluoride gas density relay of the present invention, compared with the first relay, housing 3 has good sealing, therefore shock liquid can also be filled with in housing 3, the effect of shock liquid, when gas density relay being impacted or vibrates, second rotating part 216 will produce swing, and the rotating part 211 of anti-error operation mechanism can be encountered or/and driving lever 214, the direction that the contact motion arm of each sensitive switch is increased toward gas density is dialled, add the damping action of shock liquid, more extend the time of the position making described sensitive switch away from generation misoperation, avoid Signal Regulation mechanism false triggering three sensitive switches 91 when gas density is normal, 92, 93.The resistance to shock of sulfur hexafluoride gas density relay is more increased.
The structure of the first rotating part can be designed to: resistance little (damping is little) when swinging to the direction that density (pressure) increases, and resistance large (damping is large) when swinging to the direction that density (pressure) reduces.
Embodiment 3
See Figure 15, the third sulfur hexafluoride gas density relay of the present invention, compared with the relay in embodiment 1, this sulfur hexafluoride gas density relay is also provided with vibrating member 216A (substituting the second rotating part 216), the second elastomeric element 217.Second elastomeric element 217 one end is connected on fixture 218, and the other end connects vibrating member 216A.
In the present embodiment, vibrating member 216A is connected to the first rotating part side by the second elastomeric element 217; First rotating part 211 forms a promotion district towards the edge of vibrating member 216A, and described vibrating member 216A can contact described promotion district when vibrating, and promotes 212 rotations around the shaft of described first rotating part 211; Vibrating member 216A is towards the end of the first rotating part 211 simultaneously, is also provided with a flexible member 2161.But should be understood that, described vibrating member 216A also can adopt similar mode to be arranged on driving lever 214 side, vibrating member 216A is enable directly to contact driving lever 214 when vibrating.
When this sulfur hexafluoride gas density relay is subject to vibrating, the Action of Gravity Field of elastic force 215 and the first rotating part 211 that the first rotating part 211 overcomes the first elastomeric element under effect of inertia starts to rotate around the axis, in the rotation process of the first rotating part, the motion arm of sensitive switch stirred by driving lever 214, makes sensitive switch away from the position that misoperation occurs; Simultaneously the gravity of the vibrating member 216A elastic force and vibrating member that overcome the second elastomeric element 217 under effect of inertia starts vibration, thus in vibration processes, contact the first rotating part 211 and/or driving lever 214, and giving the first rotating part 211 and/or the First Driving Force of driving lever 214 in rotation direction, continuation driving first rotating part 211 and/or driving lever 214 are stirred motion arm or are maintained the position of motion arm.Because vibrating member is also containing a flexible member 2161, the promotion district of flexible member 2161 and the first rotating part 211 and/or can compress when coming in contact with driving lever 214, the time of contact of both increases, extend the time that the motion arm of sensitive switch is stirred to the direction that gas density increases by driving lever, namely more extend the time of the position making described sensitive switch away from generation misoperation.
In vibration disappearance process, first rotating part 211 rotates to its initial position under its gravity, the first elastomeric element 215 elastic force and lever principle effect, the effect of driving lever 214 pairs of motion arms progressively reduces, and is giving vibrating member 216A and reverse the second actuating force of above-mentioned First Driving Force; Vibrating member 216A progressively returns to its initial position to the motion of its initial position under the elastic force and described second actuating force effect of its gravity and the second elastic component, vibrating member 216A postpones the recovery of the first rotating part by reaction force simultaneously, makes sensitive switch extend the time of the position away from generation misoperation; While vibrating member returns to its initial position, before or after, the first rotating part returns to its initial position, and driving lever is to the event resolves of motion arm.
Vibrating member 216A has follow-up delay function effect, and namely vibrating member, the second elastomeric element constitute follow-up time-delay mechanism.By follow-up time-delay mechanism, extend the time of the position making described sensitive switch away from generation misoperation, thoroughly escape the impact that density monitor is vibrated, avoid described Signal Regulation mechanism sensitive switch described in false triggering when gas density is normal.
Embodiment 4
See Figure 16,4th kind of sulfur hexafluoride gas density relay of the present invention, compared with relay described in embodiment 3, be provided with spring 2162 (vibrating member 216A can be provided with flexible member 2161, also no longer can be provided with this flexible member 2161) in the promotion district of the first rotating part 211.Because the first rotating part 211 is containing a spring 2162, spring 2162 and vibrating member 216A can compress when coming in contact, the time of contact of both increases, extend the time that the motion arm of sensitive switch is stirred to the direction that gas density increases by driving lever, namely more extend the time of the position making described sensitive switch away from generation misoperation.Namely the first rotating part can comprise flexible material.
In addition, the 5th kind of sulfur hexafluoride gas density relay of the present invention comprises relatively independent signal control portion and indicating value display section.Signal control portion comprises control pedestal, control end seat, controls Baden's pipe, control temperature compensating element, controls movement, Signal Regulation mechanism and some sensitive switches as signal generator, the one end controlling Baden's pipe is connected to and controls on pedestal, the other end is connected with one end of control temperature compensating element, by control end seat, sensitive switch to be arranged in housing and with contact operating grip, and is provided with antishock device accordingly with the contact motion arm of sensitive switch.Antishock device comprises rotating lever, rotating shaft and holder, wherein, rotating lever is arranged in rotating shaft, and rotating lever comprises the first rotating part and is arranged on the driving lever of the first rotating part upper end, driving lever is resisted against on the contact motion arm of sensitive switch, the center of rotation of this rotating lever and center of gravity non-concentric; Rotating shaft is fixed on holder, and holder is fixed on and controls pedestal or control on movement.Antishock device also comprises follow-up time-delay mechanism, and follow-up time-delay mechanism is made up of the second spring, the second rotating part, and one end of the second spring is connected to the second rotation, and the other end is connected on fixture, and fixture is fixed on holder.The center of rotation of the second rotating part and center of gravity non-concentric are also arranged in described rotating shaft, second rotating part can encounter the first rotating part of antivibration mount or/and driving lever when vibrating, the direction that the contact motion arm of each sensitive switch is increased toward gas density is dialled, and extends the time of the position making described sensitive switch away from generation misoperation.
When gas density relay is impacted or vibrate, first rotating part of antishock device swings, driving lever is just dialled the direction that the contact motion arm of each sensitive switch increases toward density (pressure), make signal generator (sensitive switch) away from the position that misoperation occurs, and by follow-up time-delay mechanism, extend the time of the position making described sensitive switch away from generation misoperation, thoroughly escape the shock and vibration of sulphur hexafloride circuit breaker divide-shut brake generation to the impact of density monitor, avoid Signal Regulation mechanism the normal mistiming trigger signal generator (sensitive switch) of gas density.
Indicating value display section comprises display Baden pipe, displays temperature compensating element, display base, display end seat, display movement and pointer, one end of display Baden pipe is connected on display base, the other end is connected with one end of displays temperature compensating element, by display end seat, the other end of displays temperature compensating element, is connected with the initiating terminal of display movement, and pointer is connected with the central shaft of display movement.
Can also further, signal control portion be sealed in an air chamber, control temperature compensating element, is sulfur hexafluoride gas; Control pedestal and display base can unite two into one; Control Baden pipe in control section and the display Baden pipe in display section are for being arranged side by side; In order to improve resistance to shock, the control Baden pipe in control section can be managed with the display Baden in display section and be arranged for vertical.Like this, control section and display section are relatively independent, it has the following advantages: can accomplish actual act value and pointer show value just the same, and traditional pointer type density relay, owing to there is switch resistance and magnetic helps formula power, always there is certain deviation in its actual operating value and pointer show value, makes troubles to user.
Owing to have employed antivibration mount and anti-error operation mechanism thereof, add and fill shockproof oil with, when switch divide-shut brake produces vibration, making the shock resistant damping effect of shockproof oil more obvious, guaranteeing that, during impact or vibration, signal generator (sensitive switch) is the position away from there is misoperation, guarantee that the locking contact of density monitor misoperation can not occur, locking can not be carried out to switch, the reclosing requirement of sulphur hexafloride circuit breaker can be met, ensure network system reliably working.Through process like this, just there is extraordinary performance, reach: A) can accomplish that the contact return difference of density monitor meets the demands; B) because have employed antivibration mount and anti-error operation mechanism thereof, greatly improve the resistance to shock of density monitor, when normal density value, when the impact be subject to when switch divide-shut brake or vibration, would not be there is the phenomenon triggering sensitive switch in adjusting rod, control system also can not be caused to lose efficacy; C) output of error signal can not be caused; D) simultaneously when debugging, be also easy to precision adjust very accurate, be easy to make high-precision density monitor; E) stability is also better.The advantages such as resistance to shock is high so gas density relay of the present invention has, the good electric property of signal generator, contacts are good, long working life, ensure that system reliably working, be a kind of sulfur hexafluoride gas density relay of genuine performance brilliance, can be applied in well on various sulfur hexafluoride electrical equipment.
In addition, the mode of same plane or oblique upper that the center of rotation of the first rotating part 211 of antivibration mount of the present invention and center of gravity non-concentric also can also be positioned at center of rotation with its center of gravity is arranged in rotating shaft 213, and driving lever 214 is vertically mounted on the upper end of the first rotating part 211 and is resisted against on the contact motion arm of each sensitive switch.So also greatly can improve the resistance to shock of density monitor, when normal density value, when the impact that switch divide-shut brake produces or vibration, guarantee during shock and vibration, sensitive switch, away from the position that misoperation occurs, is guaranteed that the locking contact of density monitor misoperation can not occur, can not be carried out locking to switch, therefore, it is possible to meet the reclosing requirement of sulphur hexafloride circuit breaker, ensure network system reliably working.The structure of the antivibration mount of band time-delay mechanism of the present invention can be various, and form can be various.The second rotating part in time-delay mechanism can also comprise flexible material, as rubber, spring etc.Or the first rotating part can also comprise flexible material, as rubber, spring etc.In a word, pass through time-delay mechanism, reach delay function, extend the time of signal generator (sensitive switch, magnetic help formula electric contact) away from the position of generation misoperation, the shock and vibration thoroughly escaping the generation of sulphur hexafloride circuit breaker divide-shut brake, on the impact of density monitor, avoid described Signal Regulation mechanism signal generator described in false triggering (sensitive switch, magnetic help formula electric contact) when gas density is normal.
Holder of the present invention and the first rotating part are beyond two parallel plates, can also be other forms.The center of rotation of described rotating part and center of gravity non-concentric are also arranged in described rotating shaft, and described driving lever is vertically mounted on the upper end of described rotating part and is resisted against on the contact motion arm of each sensitive switch; Follow-up time-delay mechanism is arranged on anti-error operation mechanism side.
The center of rotation of the described rotating part of time-delay mechanism and center of gravity non-concentric are also arranged in described rotating shaft, rotating part can encounter the rotating part of anti-error operation mechanism or/and driving lever when vibrating, the direction that the contact motion arm of each sensitive switch is increased toward gas density is dialled, and extends the time of the position making described sensitive switch away from generation misoperation.Or the vibrating member described in time-delay mechanism can encounter the rotating part of anti-error operation mechanism or/and driving lever when vibrating, the direction that the contact motion arm of each sensitive switch is increased toward gas density is dialled, and extends the time of the position making described sensitive switch away from generation misoperation.
Described follow-up time-delay mechanism comprises spring, rotating part or vibrating member; The rotating part of described anti-error operation mechanism or vibrating member are also containing a flexible member.Described rotating part or vibrating member can encounter the flexible member of the rotating part of anti-error operation mechanism when vibrating, the direction that the contact motion arm of each sensitive switch is increased toward gas density is dialled, and more extends the time of the position making described sensitive switch away from generation misoperation.
In addition, gas density relay of the present invention, described anti-error operation mechanism can also with damping mechanism; Described gas density relay, described some signal generators are that magnetic helps formula electric contact.Vibration of the present invention can further include the vibration because gas shock produces.
Innovative point of the present invention and core point are: devise anti-error operation mechanism, when density monitor is subject to impact shock, this anti-error operation mechanism makes some signal generators (sensitive switch or magnetic help formula electric contact) away from the position that misoperation occurs, and avoids occurring misoperation; Set up again follow-up time-delay mechanism simultaneously, by this time-delay mechanism, extend the time of the position making described signal generator (sensitive switch or magnetic help formula electric contact) away from generation misoperation, thoroughly escape the impact that density monitor is subject to impact shock, avoid at the normal mistiming trigger signal generator of gas density (sensitive switch or magnetic help formula electric contact), ensure electric power netting safe running.
Be described in detail specific embodiments of the invention above, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.
Claims (18)
1. the antivibration mount of a sulfur hexafluoride gas density relay, it is characterized in that, comprise: holder, the first rotating part, the first elastomeric element and driving lever, wherein, described holder is provided with the rotating shaft of stretching out, first rotating part is connected to also can around described axis of rotation in described rotating shaft, and be that fulcrum forms lever with rotating shaft, first end connects described driving lever, the center of gravity of the first rotating part is positioned on the second end, and the elastic force of described first elastomeric element and the gravity of the first rotating part make the first rotating part keep balance by lever principle.
2. antivibration mount according to claim 1, is characterized in that, described holder and the first rotating part are two parallel plates, and driving lever and rotating shaft are all perpendicular to holder and the first rotating part.
3. antivibration mount according to claim 1, is characterized in that, it is that driving lever reserves zone of action that described holder is provided with breach.
4. according to the antivibration mount in claim 1-3 described in any one, it is characterized in that, described antivibration mount also comprises the second rotating part and the second elastomeric element, and the second rotating part is connected in rotating shaft and also can rotates around the axis; Described second rotating part can promote described first rotating part and rotate around the axis; The center of gravity of the second rotating part is not positioned at its center of rotation.
5. antivibration mount according to claim 4, is characterized in that, described holder is provided with connector, and the second elastomeric element is connected between connector and the second rotating part.
6. antivibration mount according to claim 4, is characterized in that, described holder is provided with the limit element of restriction first rotating part and/or the second rotating part maximum rotation amplitude.
7. according to the antivibration mount in claim 1-3 described in any one, it is characterized in that, described antivibration mount is involving vibrations part and the second elastomeric element also, and vibrating member is connected to the first rotating part side by the second elastomeric element; Described vibrating member can promote described first rotating part when vibrating and rotate around the axis.
8. a sulfur hexafluoride gas density relay, it is characterized in that, comprise antivibration mount according to claim 1, also comprise the sensitive switch be arranged side by side, the motion arm of described sensitive switch is towards same direction, and the sensitive switch side be arranged side by side, is provided with described holder and described first rotating part, driving lever extends along the sensitive switch be arranged side by side, and can stir the motion arm of sensitive switch when the first rotating part rotates.
9. sulfur hexafluoride gas density relay according to claim 8, is characterized in that, described fixed seating is between the first rotating part and the sensitive switch be arranged side by side, and described driving lever strides across fixture and extends along the sensitive switch be arranged side by side.
10. sulfur hexafluoride gas density relay according to claim 8, is characterized in that, is filled with shock liquid in described sulfur hexafluoride gas density relay.
11. sulfur hexafluoride gas density relays according to claim 8, is characterized in that, described sensitive switch helps formula electric contact to substitute by magnetic.
12. sulfur hexafluoride gas density relays according to claim 8, it is characterized in that, described sulfur hexafluoride gas density relay also comprises housing, the pedestal be arranged in housing, end seat, Baden's pipe, temperature compensating element, movement, Signal Regulation mechanism, described end seat is connected with one end of described Baden pipe, and the other end of described Baden pipe is connected on described pedestal.
13. sulfur hexafluoride gas density relays according to claim 8, is characterized in that, described sulfur hexafluoride gas density relay comprises housing, be arranged on housing in and separate signal control portion and indicating value display section, wherein:
Described signal control portion comprises the first pedestal, first end seat, first Baden's pipe, the first temperature compensating element, Signal Regulation mechanism; One end of described first Baden's pipe is connected on described first pedestal, and the other end of described first Baden's pipe is connected with one end of described first temperature compensating element by described first end seat;
Described indicating value display section comprises second Baden's pipe, the second temperature compensating element, the second pedestal, the second end seat, movement and pointer, one end of described second Baden's pipe is connected on described second pedestal, the other end of described second Baden's pipe is connected with one end of described second temperature compensating element by described second end seat, the other end of described second temperature compensating element is connected with the initiating terminal of described movement, and described pointer is connected with the central shaft of described movement.
14. 1 kinds of methods improving sulfur hexafluoride gas density relay resistance to shock, it is characterized in that, comprise: sulfur hexafluoride gas density relay has been arranged side by side sensitive switch, the motion arm of described sensitive switch, towards same direction, is provided with the first rotating part on the sensitive switch side be arranged side by side; First rotating part is connected in rotating shaft, and is that boundary is divided into first end and the second end with rotating shaft, and the center of gravity of the first rotating part is positioned at the second end, and first end is connected with driving lever, and driving lever extends along the sensitive switch be arranged side by side; First rotating part connects the first elastomeric element, and the elastic force of the first elastomeric element and the gravity of the first rotating part make the first rotating part keep balance by lever principle;
When there is vibration in sulfur hexafluoride gas density relay, first rotating part is under effect of inertia, the effect overcoming the elastic force of the first elastomeric element and the gravity of the first rotating part starts to rotate around the axis, in described rotation process, the motion arm of sensitive switch stirred by driving lever, makes sensitive switch away from the position that misoperation occurs;
In vibration disappearance process, under the first rotating part gravity, the first elastomeric element elastic force and lever principle effect, the first rotating part rotates to its initial position and recovers its initial position gradually, and the effect of driving lever to motion arm is decreased to disappearance gradually.
15., according to the method improving sulfur hexafluoride gas density relay resistance to shock described in claim 14, is characterized in that, described method comprises:
Sulfur hexafluoride gas density relay is also provided with the second rotating part, the second elastomeric element, and the second rotating part is connected in rotating shaft, and rotates around the axis, and the center of gravity of the second rotating part is not positioned at its center of rotation;
When sulfur hexafluoride gas density relay is subject to vibrating, the Action of Gravity Field of elastic force and the first rotating part that the first rotating part overcomes the first elastomeric element under effect of inertia starts to rotate around the axis, in the rotation process of the first rotating part, the motion arm of sensitive switch stirred by driving lever, makes sensitive switch away from the position that misoperation occurs; Simultaneously the gravity of the second rotating part elastic force and the second rotating part of overcoming the second elastomeric element under effect of inertia starts to rotate around the axis, and the second rotatable parts rotation amplitude is larger, thus in rotation process, contact the first rotating part and/or driving lever, and giving the first rotating part and/or the First Driving Force of driving lever in rotation direction, continuation driving first rotating part and/or driving lever are stirred motion arm or are maintained the position of motion arm;
In vibration disappearance process, first rotating part rotates to its initial position under its gravity, the first elastomeric element elastic force and lever principle effect, the effect of driving lever to motion arm progressively reduces, and is giving the second rotating part and reverse the second actuating force of above-mentioned First Driving Force; Second rotating part rotates to its initial position and progressively returns to its initial position under the elastic force and described second actuating force effect of its gravity and the second elastic component, second rotating part postpones the recovery of the first rotating part by reaction force simultaneously, makes sensitive switch extend the time of the position away from generation misoperation;
While the second rotating part returns to its initial position, before or after, the first rotating part returns to its initial position, and driving lever is to the event resolves of motion arm.
16., according to the method improving sulfur hexafluoride gas density relay resistance to shock described in claim 14, is characterized in that, described method comprises:
Sulfur hexafluoride gas density relay is also provided with vibrating member, the second elastomeric element, and vibrating member is connected to the first rotating part side by the second elastomeric element; Described vibrating member can promote described first rotating part when vibrating and rotate around the axis;
When sulfur hexafluoride gas density relay is subject to vibrating, the Action of Gravity Field of elastic force and the first rotating part that the first rotating part overcomes the first elastomeric element under effect of inertia starts to rotate around the axis, in the rotation process of the first rotating part, the motion arm of sensitive switch stirred by driving lever, makes sensitive switch away from the position that misoperation occurs; Simultaneously the gravity of the vibrating member elastic force and vibrating member that overcome the second elastomeric element under effect of inertia starts vibration, thus in vibration processes, contact the first rotating part and/or driving lever, and giving the first rotating part and/or the First Driving Force of driving lever in rotation direction, continuation driving first rotating part and/or driving lever are stirred motion arm or are maintained the position of motion arm; In vibration disappearance process, first rotating part rotates to its initial position under its gravity, the first elastomeric element elastic force and lever principle effect, the effect of driving lever to motion arm progressively reduces, and is giving vibrating member and reverse the second actuating force of above-mentioned First Driving Force; Vibrating member progressively returns to its initial position to the motion of its initial position under the elastic force and described second actuating force effect of its gravity and the second elastic component, vibrating member postpones the recovery of the first rotating part by reaction force simultaneously, makes sensitive switch extend the time of the position away from generation misoperation;
While vibrating member returns to its initial position, before or after, the first rotating part returns to its initial position, and driving lever is to the event resolves of motion arm.
17., according to the method improving sulfur hexafluoride gas density relay resistance to shock described in claim 14, is characterized in that, described method adopts antivibration mount according to claim 1.
18., according to the method improving sulfur hexafluoride gas density relay resistance to shock described in claim 17, is characterized in that, the direction that motion arm increases to gas density is stirred by described driving lever.
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| CN201610051375.XA CN105513891B (en) | 2016-01-26 | 2016-01-26 | A kind of sulfur hexafluoride gas density relay and antivibration method and antivibration mount |
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| CN107658178A (en) * | 2017-07-20 | 2018-02-02 | 上海乐研电气有限公司 | A kind of sulfur hexafluoride gas density relay and antivibration method and antivibration mount |
| CN109243914A (en) * | 2018-09-28 | 2019-01-18 | 上海乐研电气有限公司 | A kind of method and high-precision gas density monitor improving gas density relay precision |
| CN109839143A (en) * | 2017-11-28 | 2019-06-04 | 上海乐研电气科技有限公司 | Shock type electro connecting pressure gauge |
| CN110416024A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | A kind of shock type digital display gas density relay |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107658178A (en) * | 2017-07-20 | 2018-02-02 | 上海乐研电气有限公司 | A kind of sulfur hexafluoride gas density relay and antivibration method and antivibration mount |
| CN107658178B (en) * | 2017-07-20 | 2020-12-11 | 上海乐研电气有限公司 | Sulfur hexafluoride gas density relay, and vibration resisting method and device |
| CN109839143A (en) * | 2017-11-28 | 2019-06-04 | 上海乐研电气科技有限公司 | Shock type electro connecting pressure gauge |
| CN109243914A (en) * | 2018-09-28 | 2019-01-18 | 上海乐研电气有限公司 | A kind of method and high-precision gas density monitor improving gas density relay precision |
| CN109243914B (en) * | 2018-09-28 | 2024-03-29 | 上海乐研电气有限公司 | Method for improving accuracy of gas density relay and gas density relay |
| CN110416024A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | A kind of shock type digital display gas density relay |
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