CN203521303U - Sulfur hexafluoride gas density relay - Google Patents

Sulfur hexafluoride gas density relay Download PDF

Info

Publication number
CN203521303U
CN203521303U CN201320578072.5U CN201320578072U CN203521303U CN 203521303 U CN203521303 U CN 203521303U CN 201320578072 U CN201320578072 U CN 201320578072U CN 203521303 U CN203521303 U CN 203521303U
Authority
CN
China
Prior art keywords
trigger mechanism
sensitive switch
gas density
signal trigger
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201320578072.5U
Other languages
Chinese (zh)
Inventor
金海勇
金海生
苏丽芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Roye Electric Science and Technology Co Ltd
Original Assignee
Shanghai Roye Electric Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Roye Electric Science and Technology Co Ltd filed Critical Shanghai Roye Electric Science and Technology Co Ltd
Priority to CN201320578072.5U priority Critical patent/CN203521303U/en
Application granted granted Critical
Publication of CN203521303U publication Critical patent/CN203521303U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

Links

Images

Abstract

The utility model discloses a sulfur hexafluoride gas density relay which is high in vibration resistance performance, long in service lifetime, and high in precision, and of which the contacts of a signal generator are excellent in contact and electrical performance. The sulfur hexafluoride gas density relay comprises a housing, a pedestal, a terminal seat, a Burdon tube, a temperature compensating element, a machine core, a plurality of microswitches arranged in housing, and switch adjusting mechanisms and signal trigger mechanisms, of which the number is identical to that of the microswitches. Each switch adjusting mechanism comprises a fixing component, a rotating shaft rivet, a spring and a rotary component, wherein one end of the fixing component is connected to one end of the rotary component through rivets and springs, eth other end of the fixing component is fixed on the pedestal to make the rotating shaft rivet to be coaxial with a sector shaft, the other end of the rotary component is fixedly connected with the microswitches, each signal trigger mechanism comprises a signal trigger mechanism shaft and a plurality of cams, the signal trigger mechanism shaft is coaxially connected to one end of the sector gear shaft, and the cams are installed on the signal trigger mechanism shaft and abut against contact operating rods of each microswitch.

Description

A kind of sulfur hexafluoride gas density relay
Technical field
The utility model relates to a kind of sulfur hexafluoride gas density relay.
Background technology
At present, be used for monitoring sulfur hexafluoride gas density in sulfur hexafluoride electrical equipment generally adopt contact be sensitive switch without oil type gas density relay, as Chinese patent or patent application 200510110648.5, 200520045890.4, 200520045891.9, 200520115321.2, 200810201462.4, 200910195174.7, 201020190271.5 with 201010171798.8 disclosed gas density relays (as shown in Figures 2 and 3) generally comprise dial 1, pointer 2, Baden's pipe 3, temperature compensating element 4, pedestal 5, with the movement 6 that shows enlarger, connecting rod 7, housing 8, joint 9, sensitive switch 101, 102, 103, regulating part 111, 112, 113, contact motion arm 12, linking arm 13, end seat 14, junction block 15, watch crystal 16, case 17, printed circuit board 18, location-plate 19, fixed head 20, electric wire 21 and sulfur hexafluoride gas feed tube 22, wherein, joint 9, junction block 15, watch crystal 16, case 17 and pedestal 5 are separately fixed on housing 8.Movement 6 and fixed head 20 are arranged on respectively on pedestal 5, and pointer 2 and dial 1 are separately fixed on movement 6.One end of Baden's pipe 3 is welded on pedestal 5, the other end is connected with one end of temperature compensating element 4 by end seat 14, the other end of temperature compensating element 4 is connected with linking arm 13, and one end of linking arm 13 is connected with one end of connecting rod 7, and the other end of connecting rod 7 is connected with movement 6.Contact motion arm 12 is the extension of linking arm 13, is fixed with regulating part 111,112,113 on contact motion arm 12.Sensitive switch 101,102,103 is welded on respectively on printed circuit board 18, and printed circuit board 18 is arranged on fixed head 20, and fixed head 20 is arranged on again on pedestal 5.Sensitive switch 101,102,103 is fixed on the below of regulating part 111,112,113 correspondingly.On each sensitive switch, be respectively equipped with operating grip 1011,1021,1031.Location-plate 19 rear ends are fixed on movement 6, and front end extends to the below of Baden's pipe 3 end seats 14 that are connected with temperature compensating element 4.The contact of sensitive switch 101,102,103 is connected to junction block 15 from printed circuit board 18 by electric wire 21, and junction block 15 is fixed on housing 8.
Although the sensitive switch that above-mentioned these gas density relays adopt has advantages of good electric property, but because the length of contact motion arm 12 is longer, and be a cantilever beam, when operation sulphur hexafloride circuit breaker, cause 12 vibrations of contact motion arm very large, and then cause that misoperation appears in sulfur hexafluoride gas density relay, even there is damaging sensitive switch, lost performance completely, resistance to shock is poor in a word, is difficult to guarantee system reliably working.
In patent 201020190271.5 and 201010171798.8(, see Fig. 4 and Fig. 5) disclosed gas density relay also comprises displacement amplifying mechanism, 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, the contact on sensitive switch is switched on or switched off; When gas density value changes, Baden's pipe and temperature compensating element produce displacement, and this displacement passes to sensitive switch after amplifying by displacement amplifying mechanism, makes sensitive switch send corresponding signal, completes the function of density monitor.Yet, when sulphur hexafloride circuit breaker carries out breaking-closing operating, Hui Dui Baden pipe and temperature compensating element produce vibration, this vibration can cause that Baden's pipe and temperature compensating element are subjected to displacement, this displacement passes to sensitive switch after also amplifying by displacement amplifying mechanism, makes sensitive switch send corresponding signal.Will produce misoperation like this, that is to say that its resistance to shock is bad, can not guarantee system reliably working, 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.Be the blowing pressure (density) when alarm pressure value is following, can not bear the shock test of 50g, 11ms, can there is misoperation in locking contact now.For example: the density monitor of 0.6/0.52/0.5, when gas pressure (density) drops to actuation of an alarm point, now carry out the shock test of 50g, 11ms, can there is misoperation in locking contact, switch has been carried out to locking, can not meet the reclosing requirement of sulphur hexafloride circuit breaker.And the problem of patent 200520115321.2 is similar to patent 201010171798.8, also be vibration can be caused displacement pass to sensitive switch after amplifying by displacement amplifying mechanism and (by controlling sector gear, pass to controller mandrel, through controller mandrel, pass to sensitive switch again), amplify so widely the displacement that vibration causes, be equivalent to make vibration to become more severe.Due to very large in the time vibration of sulphur hexafloride circuit breaker breaking-closing operating, need especially the better gas density relay of resistance to shock, above-mentioned these gas density relays can not be dealt with.
In addition, patent 200810201462.4(is shown in Fig. 5) disclosed a kind of gas density relay, although contact has also adopted sensitive switch, also be provided with the regulating part corresponding with sensitive switch 141~143 and contact operating axis 16, wherein, one end of contact operating axis 16 is connected in the rotating shaft 24 of sector gear of movement 2 and rotates with the rotating shaft 24 of this sector gear, on this contact operating axis 16, compartment of terrain radially offers the threaded perforations corresponding with sensitive switch 91~93 along its length, regulating part 141~143 is plugged in threaded perforations correspondingly and its end is resisted against on the motion arm of sensitive switch 91~93.By the contact operating axis 16 being fixed in the rotating shaft 24 of sector gear, rotate, the regulating part 141~143 that makes to be fixed on this contact operating axis 16 drives sensitive switches 91~93 actions.Because the rotational angle of the rotating shaft 24 of sector gear is very little, the precision of product has been reduced.More seriously because the actuating length of the motion arm of sensitive switch is short, and regulating part 141~143 adopts, be adjustment screw.When Baden's pipe 6 moves, sector shaft 24 with movement 2 rotates, make adjustment screw rotate the motion arm of encountering sensitive switch, drive the moving contact of motion arm push switch, when turning in the situation that the end face of adjustment screw and the motion arm of sensitive switch are vertical, adjustment screw is blocked and can not have been rotated, so be difficult to the density monitor of the gamut of realization-0.1~0.9MPa, particularly be difficult to realize the demonstration of be initiated with-0.1MPa, while vacuumizing, just cannot show, be difficult to apply, so be starved of innovation.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, and a kind of sulfur hexafluoride gas density relay is provided, and its resistance to shock is higher, and the contact of signal generator contacts and electric property is better, long working life, and precision is high.
The first technical scheme that realizes above-mentioned purpose is: a kind of sulfur hexafluoride gas density relay, comprises housing, is arranged on pedestal, end seat, Baden's pipe, temperature compensating element, movement and some sensitive switches as signal generator in housing; The sector gear that described movement comprises the upper and lower clamping plate that be arranged in parallel, be connected across shaft gear and sector shaft between upper and lower clamping plate rotationally, be arranged on sector shaft and be connected with a joggle with shaft gear, the initiating terminal of this sector gear is connected with one end of described temperature compensating element with linking arm by connecting rod successively, the other end of described temperature compensating element is connected with one end of described Baden pipe by described end seat, and the other end of described Baden pipe is connected on described pedestal; Described gas density relay also comprises switch governor motion and a signal trigger mechanism identical with described sensitive switch quantity; Wherein,
Described in each, switch governor motion comprises a fixture, a rotating shaft rivet, a spring and a rotating part; Described rotating shaft rivet is hollow structure; One end of described fixture is connected with one end of described rotating part with spring by described rotating shaft rivet, and the other end of described fixture is fixed on described pedestal or movement; Described rotating shaft rivet is hollow shaft and coaxial with the sector shaft of described movement; The fixing described sensitive switch of the other end of described rotating part;
Described signal trigger mechanism comprises signal trigger mechanism axle and the cam identical with described sensitive switch quantity; Described signal trigger mechanism axle is connected to coaxially one end of described sector shaft and is plugged on rotationally in the endoporus of rotating shaft rivet of described switch governor motion; Described cam is arranged on described signal trigger mechanism axle and is resisted against correspondingly on the contact lever of each sensitive switch;
When gas density value changes, described Baden pipe and temperature compensating element produce displacement, this displacement drives described sensitive switch by described sector gear and described signal trigger mechanism successively, makes described sensitive switch send corresponding signal, completes the function of gas density relay.
Above-mentioned sulfur hexafluoride gas density relay, wherein, described rotating part is the L shaped crotch-shaped with the neck of hook and hook, described sensitive switch is fixed on the end of the neck of hook of described rotating part in its contact lever mode relative with described hook.
Above-mentioned sulfur hexafluoride gas density relay, wherein, described spring is butterfly spring or plain cushion spring.
Above-mentioned sulfur hexafluoride gas density relay, wherein, is fixed on described pedestal by switch auxiliary body after the rotating part adjusting of described sensitive switch by described switch governor motion again.
Above-mentioned sulfur hexafluoride gas density relay, wherein, on described signal trigger mechanism axle with position-limit mechanism.
Above-mentioned sulfur hexafluoride gas density relay, wherein, described movement is also with damping mechanism.
The second technical scheme that realizes above-mentioned purpose is: a kind of sulfur hexafluoride gas density relay, comprise housing, be arranged on pedestal, end seat, Baden's pipe, temperature compensating element, demonstration movement, control movement and some sensitive switches as signal generator in housing, one end of described Baden pipe is connected on described pedestal, the other end is connected with one end of described temperature compensating element by described end seat, and described sensitive switch is arranged in described housing and with contact operating grip; Described gas density relay also comprises switch governor motion and a signal trigger mechanism identical with described sensitive switch quantity; Wherein,
Described in each, switch governor motion comprises a fixture, a rotating shaft rivet, a spring and a rotating part; Described rotating shaft rivet is hollow structure; One end of described fixture is connected with one end of described rotating part with spring by described rotating shaft rivet, and the other end of described fixture is fixed on described pedestal or described control movement, so that described rotating shaft rivet is coaxial with the sector shaft of described control movement; The fixing described sensitive switch of the other end of described rotating part;
Described signal trigger mechanism comprises signal trigger mechanism axle and the cam identical with described sensitive switch quantity; Described signal trigger mechanism axle be connected to coaxially described control movement sector shaft one end and be plugged on rotationally in the endoporus of rotating shaft rivet of described switch governor motion; Described cam is arranged on signal trigger mechanism axle and is resisted against correspondingly on the contact lever of each sensitive switch;
When gas density value changes, described Baden pipe and temperature compensating element produce displacement, this displacement drives described sensitive switch by sector gear and the described signal trigger mechanism of described control movement successively, make described sensitive switch send corresponding signal, complete the function of gas density relay.
The third technical scheme that realizes above-mentioned purpose is: a kind of sulfur hexafluoride gas density relay, comprises relatively independent signal controlling part and indicating value display section; Described signal control part is divided and is comprised control pedestal, control end seat, controls Baden's pipe, controls temperature compensating element, controls movement and some sensitive switches as signal generator; One end of described control Baden pipe is connected on described control pedestal, and the other end is connected with one end of described control temperature compensating element by described control end seat; Described sensitive switch is arranged in housing and with contact operating grip; Described gas density relay also comprises switch governor motion and a signal trigger mechanism identical with described sensitive switch quantity; Wherein,
Described in each, switch governor motion comprises a fixture, a rotating shaft rivet, a spring and a rotating part; Described rotating shaft rivet is hollow structure; One end of described fixture is connected with one end of described rotating part with spring by described rotating shaft rivet, and the other end of described fixture is fixed on described control pedestal or controls on movement, so that described rotating shaft rivet is coaxial with the sector shaft of described control movement; The fixing described sensitive switch of the other end of described rotating part;
Described signal trigger mechanism comprises signal trigger mechanism axle and the cam identical with described sensitive switch quantity, described signal trigger mechanism axle be connected to coaxially described control movement sector shaft one end and be plugged on rotationally in the endoporus of rotating shaft rivet of described switch governor motion, described cam is arranged on signal trigger mechanism axle and is resisted against correspondingly on the contact lever of each sensitive switch;
When gas density value changes, described control Baden pipe and control temperature compensating element produce displacement, this displacement passes to described sensitive switch by sector gear and the described signal trigger mechanism of described control movement successively, make described sensitive switch send corresponding signal, complete the function of density monitor;
Described indicating value display section comprises demonstration Baden pipe, displays temperature compensating element,, display base, display end seat, shows movement and pointer, one end of described demonstration Baden pipe is connected on described display base, the other end is connected with one end of described displays temperature compensating element, by described display end seat, the other end of described displays temperature compensating element, is connected with the initiating terminal of described demonstration movement, and described pointer is connected with the central shaft of described demonstration movement.
The technical scheme of sulfur hexafluoride gas density relay of the present utility model, prior art is compared has following obvious advantage and disadvantage:
When gas density value changes, Baden's pipe and temperature compensating element produce displacement, and this displacement passes to sensitive switch by sector gear and the signal trigger mechanism of movement, makes sensitive switch send corresponding signal, completes the function of density monitor.Compare with the disclosed gas density device of patent 200520045890.4,200520045891.9 and 200910195174.7, owing to there is no contact motion arm, there is not cantilever beam, so when operation sulphur hexafloride circuit breaker, the vibration causing is just very little, and then can not cause that misoperation appears in sulfur hexafluoride gas density relay; Compare with 201010171798.8 disclosed gas density devices with patent 201020190271.5, after not adopting signal enlarger that displacement is amplified, then remove control signal generator, vibration is not just exaggerated so simultaneously.Make that gas density relay has that resistance to shock is high, the advantage such as the good electric property of signal generator, contact contact, long working life, guaranteed 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 equipments.
Also have, because the initiating terminal of the sector gear of movement is fixedly connected with the other end of temperature compensating element with linking arm by connecting rod, or the initiating terminal of the sector gear of movement is directly fixedly connected with the other end of temperature compensating element; The corresponding setting of contact operating grip of signal trigger mechanism and sensitive switch; Movement can also, with damping mechanism, also can further improve resistance to shock.
In addition, the width of Baden's pipe is 14~60mm; Temperature compensating element is bimetallic material or the airtight compensation Baden pipe that has been filled with the gas that temperature-compensating uses.When temperature compensating element is that the airtight compensation Baden pipe that is filled with gas or signal controlling are partly sealed in one while being filled with in the air chamber of sulfur hexafluoride gas (it controls temperature compensating element is sulfur hexafluoride gas), compensation Baden pipe or air chamber can be communicated with the temperature-sensitive bag gas circuit being located at outside housing by tube connector.During use, temperature-sensitive bag and tested source of the gas are in same environment, make density monitor can accurately reflect the temperature of the gas of measured or sulphur hexafluoride equipment that monitor, the gas density of the sulphur hexafluoride equipment of can actual response monitoring, the range of application that has improved greatly this high antivibration, high accuracy sulfur hexafluoride gas density relay, can be applied on sulfur hexafluoride electrical equipment well.
Sulfur hexafluoride gas density relay of the present utility model can also be sulfur hexafluoride gas mixture density monitor or Compressed Gas 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 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 Fig. 3;
Fig. 5 is the partial perspective view of the third pointer sulfur hexafluoride gas density relay of prior art;
Fig. 6 is the partial perspective view of sulfur hexafluoride gas density relay of the present utility model;
Fig. 7 is the partial side view of Fig. 6;
Fig. 8 is the partial elevation view of sulfur hexafluoride gas density relay of the present utility model;
Fig. 9 is the structural representation of the governor motion of the sensitive switch in sulfur hexafluoride gas density relay of the present utility model.
Embodiment
In order to understand the technical solution of the utility model better, below by specific embodiment, be also described in detail by reference to the accompanying drawings.
Refer to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the first sulfur hexafluoride gas density relay of the present utility model, comprise Baden's pipe 3, temperature compensating element 4(present case adopts bimetallic material), pedestal 5, movement 6, connecting rod 7, housing, joint, three sensitive switches 101, 102, 103, three switch governor motions 111, 112, 113, signal trigger mechanism 12, linking arm 13, end seat 14, junction block, watch crystal, case, electric wire, switch is auxiliary body 24 and position-limit mechanism 25 fixedly, the present embodiment is with three sensitive switches 101, 102, 103 as gas density relay signal generator, this gas density relay is also with being useful on dial and the pointer that shows indicating value.
The width of Baden's pipe 3 is 14~60mm, in order to improve resistance to shock, the width of Baden's pipe 3 is elected 20~40mm as, one end of Baden's pipe 3 is connected on pedestal 5, the other end is welded on end seat 14, this end seat 14 is connected with one end of temperature compensating element 4, and the other end of temperature compensating element 4 is connected with linking arm 13, this temperature compensating element 4 be shaped as ∪ shape or Ω shape; Linking arm 13 is connected with one end of connecting rod 7 again, and the other end of connecting rod 7 is connected with the initiating terminal 611 of the sector gear 61 of movement 6; Signal trigger mechanism 12 is comprised of signal trigger mechanism axle 121 and three cams 1221,1222,1223, and signal trigger mechanism axle 121 is vertically fixed on the surface of sector gear 61 of movement 6.Specifically, movement 6 comprises machine mandrel 60, hairspring 64, movement train wheel bridge 65, and the movement lower plate 66 that be arranged in parallel of movement train wheel bridge 65, the sector gear 61 that is connected across the central gear 63 between movement train wheel bridge 65 and movement lower plate 66 and is connected with a joggle with this central gear 63 rotationally; One end of signal trigger mechanism axle 121 coaxially connects the sector shaft 610 of movement, three cam 1221,1222,1223 intervals, the ground of the length direction along signal trigger mechanism axle 121 are arranged on signal trigger mechanism axle 121, and these three cams 1221,1222,1223 are resisted against on the contact lever 1011,1021,1031 of sensitive switch 101,102,103 correspondingly.Movement 6 can also be installed damping mechanism in one end of sector gear rotating shaft 610.
Three switch governor motions 111,112,113 comprise that rotating part 1114,1124,1134, fixture 1111,1121,1131, spring 1112,1122,1132 and rotating shaft rivet 1113,1123,1133(are shown in Fig. 9), wherein, rotating part 1114,1124,1134 is the L shaped crotch-shaped that comprises shank and hook, and the head of the hook of this rotating part is offered a connecting hole; Fixture 1111,1121,1131 is on a winding sheet and surface, to offer two installing holes, offers a connecting hole for one of fixture 1111,1121,1131; Spring 1112,1122,1132 is butterfly spring or plain cushion spring; Rotating shaft rivet 1113,1123,1133 is quill shaft; One of connecting hole of being provided with of the hook head of rotating part 1114,1124,1134 and fixture 1111,1121,1131 is connected with spring 1112,1122,1132 by rotating shaft rivet 1113,1123,1133.
Three switch governor motions 111,112,113 are fixed on pedestal 5 by fixture 1111,1121,1131 correspondingly, and the rotating shaft rivet 1113,1123,1133 of three governor motions 111,112,113 is all coaxial with sector shaft 610; Three fine motion sensitive switches 101,102,103 are fixed on the outer end of shank of the rotating part 1114,1124,1134 of three switch governor motions 111,112,113 correspondingly in its contact lever 1011,1021,1031 modes relative with hook, for regulating the position of sensitive switch 101,102,103; Because the signal trigger mechanism axle 121 of signal trigger mechanism 12 is also coaxial with sector shaft 610, so signal trigger mechanism axle 121 interts rotationally in rotating shaft rivet 1113,1123,1133 endoporus of three switch governor motions.The signal trigger mechanism axle 121 of signal trigger mechanism 12 and three cams 1221,1222,1223 drive the contact lever 1011,1021,1031 of sensitive switch 101,102,103 according to gas density value and force value, the contact on sensitive switch 101,102,103 is switched on or switched off; The contact of sensitive switch 101,102,103 is connected by electrical wiring on junction block, and junction block 15 is fixed on housing 8; Joint 9 is fixed on housing 8, and watch crystal 16, case 17 and sealing ring thereof are separately fixed on housing 8, can protect housing 8 internal mechanisms to avoid mechanical damage and dirt, rainwater is invaded.One end of deferent is connected with pedestal 5, and positiver sealing; The other end of deferent is connected with joint 9, and positiver sealing.In order further to improve the resistance to shock of density monitor, signal trigger mechanism axle 121 is also with position-limit mechanism 25, the other end of 25 pairs of signal trigger mechanism axles 121 of this position-limit mechanism plays position-limiting action, prevents that signal trigger mechanism axle 121 from rocking because vibration causes, thereby improves resistance to shock.
Dial 1 is fixed on pedestal 5, and pointer 2 is fixed on the front end of machine mandrel 60.
Switch fixedly auxiliary body 24 is fixed on pedestal 5, and the switch fixedly form of auxiliary body 24 is unrestricted, can variation.After the contact operating value of density monitor regulates, need to fix thoroughly sensitive switch, specifically, by switch fixedly auxiliary body 24 rotating part 1114,1124,1134 of three switch governor motions 111,112,113 is fixed on pedestal 5, sensitive switch is fixed thoroughly, be not subject to any vibration and be shifted, thereby can greatly improve the resistance to shock of relay, guaranteeing system reliably working.Sensitive switch 101,102,103 can adopt normal opened contact, also can adopt normally closed contact, and its installation site is unrestricted.
The operation principle of sulfur hexafluoride gas density relay of the present utility model is based on flexible member Baden pipe 3, utilizes the pressure and temperature of 4 pairs of variations of temperature compensating element to revise, the variation of reaction sulfur hexafluoride gas density.Under the pressure-acting of measured medium sulfur hexafluoride gas, owing to there being the effect of temperature compensating element 4, the variation of its density value, force value also changes accordingly, force the end of Baden's pipe 3 to produce corresponding strain-displacement, by means of temperature compensating element 4 and connecting rod 7, pass to successively sector shaft 610 and signal trigger mechanism axle 121, and then pass to three cams 1221,1222,1223.Three cams 1221,1222,1223 drive the contact operating grip 1011,1021,1031 of sensitive switch 101,102,103 according to gas density value and force value, make the contact on sensitive switch 101,102,103 be switched on or switched off and send corresponding signal, complete the function of density monitor.If leaked gas, its density value drops to a certain degree (reach and report to the police or locking value), Baden's pipe 3 produces accordingly to bottom offset, by temperature compensating element 4, make linking arm 13 to bottom offset, pass to connecting rod 7, connecting rod 7 passes to sector shaft 610 and the signal trigger mechanism axle 121 of movement 6 successively, signal trigger mechanism axle 121 drives three cams 1221, 1222, 1223 rotate, while turning to a certain degree, three cams 1221, 1222, 1223 just trigger corresponding sensitive switch 101, 102, 103 contact operating grip 1011, 1021, 1031, corresponding sensitive switch 101, 102, corresponding signal (reporting to the police or locking) is just connected and sent to 103 contacts, reach the sulfur hexafluoride gas density in the equipment such as monitoring and controlling electric switch, make electric equipment trouble free service.If its density value has raise, force value also raises accordingly, be elevated to a certain degree, Baden's pipe 3 also produces accordingly to top offset, by temperature compensating element 4, make linking arm 13 to top offset, pass to connecting rod 7, connecting rod 7 passes to sector shaft 610 and the signal trigger mechanism axle 121 of movement 6 successively, signal trigger mechanism axle 121 band moving cams 1221, 1222, 1223 rotate, while turning to a certain degree, cam 1221, 1222, 1223 just do not trigger corresponding sensitive switch 101, 102, 103, corresponding sensitive switch 101, 102, 103 contacts just disconnect, signal (reporting to the police or locking) is just removed.
By the cam of conditioning signal trigger mechanism, contact operating value that can regulating density relay.
In order to improve the resistance to shock of sulfur hexafluoride gas density relay, density monitor can also arrange magnetic and help formula electric contact, pointer with use in electric contact, pointer is fixed on movement, magnetic helps formula electric contact to be fixed in housing, and this magnetic helps formula electric contact can play vibration damping effect, improves vibration resistance, if desired, can also output contact signal simultaneously.
The second sulfur hexafluoride gas density relay of the present utility model, compares with the first, is mainly to have increased control movement.Wherein, linking arm is connected with one end of control connection bar again, and the other end of control connection bar is connected with the initiating terminal of controlling the sector gear of movement; Signal trigger mechanism is fixed on the sector gear of controlling movement.When gas density value changes, Baden's pipe and temperature compensating element produce displacement, and this displacement passes to sensitive switch by signal trigger mechanism, makes sensitive switch send corresponding signal, completes the function of density monitor.Wherein signal trigger mechanism axle is connected to coaxially one end of the sector shaft of controlling movement and is plugged on rotationally in the endoporus of rotating shaft rivet of switch governor motion, and cam is arranged on signal trigger mechanism axle and is resisted against correspondingly on the contact lever of each sensitive switch.This programme can make the pointer of display section more steady.
The third sulfur hexafluoride gas density relay of the present utility model, compare with the second, mainly to adopt novel control movement, feature is that signal trigger mechanism axle is exactly the sector shaft of controlling movement, and this sector shaft is plugged in the endoporus of rotating shaft rivet of switch governor motion rotationally, and cam is arranged on, to control the sector shaft (being signal trigger mechanism axle) of movement upper and be resisted against correspondingly on the contact lever of each sensitive switch.The density monitor of present case, the cam of its signal trigger mechanism is directly fixed on the sector shaft of controlling movement.When gas density value changes, Baden's pipe and temperature compensating element produce displacement, and this displacement passes to sensitive switch by signal trigger mechanism, makes sensitive switch send corresponding signal, completes the function of density monitor.
The 4th kind of sulfur hexafluoride gas density relay of the present utility model, compares with the second, is mainly to adopt two temperature compensating element,, i.e. display section temperature compensating element and control section temperature compensating element.Wherein, end seat is connected with control temperature compensating element, controls temperature compensating element and is connected with linking arm, and linking arm is connected with one end of control connection bar again, and the other end of control connection bar is connected with the initiating terminal of controlling the sector gear of movement; Signal trigger mechanism is fixed on the sector shaft of controlling movement.When gas density value changes, Baden's pipe and temperature compensating element produce displacement, and this displacement passes to sensitive switch by signal trigger mechanism, makes sensitive switch send corresponding signal, completes the function of density monitor.This programme can make the pointer of display section more steady, and temperature-compensating is more accurate, and precision is higher.
In a word, the form of control movement can also be various.
Sulfur hexafluoride gas density relay can also be designed to relatively independent signal controlling part and indicating value display section in addition.Signal control part is divided and is comprised control pedestal, control end seat, controls Baden's pipe, controls temperature compensating element, controls movement and some sensitive switches as gas density relay signal generator.One end of controlling Baden's pipe is connected to be controlled on pedestal, the other end is connected with one end of controlling temperature compensating element by control end seat, sensitive switch is arranged in housing and with contact operating grip, also comprises the signal trigger mechanism being fixed on the sector shaft of controlling movement.When gas density value changes, to control Baden's pipe and control temperature compensating element generation displacement, this displacement passes to sensitive switch by signal trigger mechanism, makes sensitive switch send corresponding signal, completes the function of density monitor;
Indicating value display section comprises demonstration Baden pipe, displays temperature compensating element,, display base, display end seat, shows movement and pointer, the one end that shows Baden's 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 that shows movement, and pointer is connected with the central shaft that shows movement.
Can also be further, signal controlling is partly sealed in an air chamber, and it controls temperature compensating element is sulfur hexafluoride gas; Controlling pedestal and display base can unite two into one; Demonstration Baden pipe in Guan Yu display section, control Baden in control section is for being arranged side by side; In order to improve resistance to shock, the control Baden pipe in control section can be vertical setting with the demonstration Baden pipe in display section.Like this, control section and display section are relatively independent, it has the following advantages: can accomplish that actual act value and pointer show value are just the same, and traditional pointer type density relay, owing to existing switch resistance and magnetic to help formula power, always there is certain deviation in its actual operating value and pointer show value, to user, makes troubles.
In sum, because the utility model has structurally been done very large innovation, there is no contact motion arm, there is not cantilever beam, so when operation sulphur hexafloride circuit breaker, the vibration causing is just very little, and then can not cause that misoperation appears in sulfur hexafluoride gas density relay; Compare with 201010171798.8 disclosed gas density relays with patent 201020190271.5 simultaneously, also be structurally to have done very large innovation, do not adopt signal trigger mechanism that displacement is amplified, then remove control signal generator (some sensitive switches).But adopt the sector gear through movement the displacement of Baden's pipe and temperature compensating element, and then by being fixed on the signal trigger mechanism on the sector shaft of movement, then remove control signal generator (some sensitive switches), just vibrate and be not exaggerated like this.Compare with the disclosed gas density relay of patent 200810201462.4 simultaneously, the displacement of gas density variation does not just have reduced, so can not reduce the precision of sulfur hexafluoride gas density relay, can also be very easy to realize the density monitor (0.1~0.9MPa) of gamut simultaneously, particularly easily realize the demonstration of be initiated with-0.1MPa, while vacuumizing, just can show vacuum values, be beneficial to and apply.So the gas density relay of the utility model has, resistance to shock is high, the good electric property of signal generator, contact contact, the advantage such as precision is good, long working life, guaranteed 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 equipments.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims (8)

1. a sulfur hexafluoride gas density relay, comprises housing, is arranged on pedestal, end seat, Baden's pipe, temperature compensating element, movement and some sensitive switches as signal generator in housing; The sector gear that described movement comprises the upper and lower clamping plate that be arranged in parallel, be connected across shaft gear and sector shaft between upper and lower clamping plate rotationally, be arranged on sector shaft and be connected with a joggle with shaft gear, the initiating terminal of this sector gear is connected with one end of described temperature compensating element with linking arm by connecting rod successively, the other end of described temperature compensating element is connected with one end of described Baden pipe by described end seat, and the other end of described Baden pipe is connected on described pedestal; It is characterized in that,
Described gas density relay also comprises switch governor motion and a signal trigger mechanism identical with described sensitive switch quantity;
Described in each, switch governor motion comprises a fixture, a rotating shaft rivet, a spring and a rotating part; Described rotating shaft rivet is hollow structure; One end of described fixture is connected with one end of described rotating part with spring by described rotating shaft rivet, and the other end of described fixture is fixed on described pedestal or movement; Described rotating shaft rivet is hollow shaft and coaxial with the sector shaft of described movement; The fixing described sensitive switch of the other end of described rotating part;
Described signal trigger mechanism comprises signal trigger mechanism axle and the cam identical with described sensitive switch quantity; Described signal trigger mechanism axle is connected to coaxially one end of described sector shaft and is plugged on rotationally in the endoporus of rotating shaft rivet of described switch governor motion; Described cam is arranged on described signal trigger mechanism axle and is resisted against correspondingly on the contact lever of each sensitive switch;
When gas density value changes, described Baden pipe and temperature compensating element produce displacement, this displacement drives described sensitive switch by described sector gear and described signal trigger mechanism successively, makes described sensitive switch send corresponding signal, completes the function of gas density relay.
2. sulfur hexafluoride gas density relay according to claim 1, it is characterized in that, described rotating part is the L shaped crotch-shaped with the neck of hook and hook, and described sensitive switch is fixed on the end of the neck of hook of described rotating part in its contact lever mode relative with described hook.
3. sulfur hexafluoride gas density relay according to claim 1, is characterized in that, described spring is butterfly spring or plain cushion spring.
4. sulfur hexafluoride gas density relay according to claim 1, is characterized in that, after the rotating part adjusting of described sensitive switch by described switch governor motion, is fixed on described pedestal by switch auxiliary body again.
5. sulfur hexafluoride gas density relay according to claim 1, is characterized in that, on described signal trigger mechanism axle with position-limit mechanism.
6. sulfur hexafluoride gas density relay according to claim 1, is characterized in that, described movement is also with damping mechanism.
7. a sulfur hexafluoride gas density relay, comprise housing, be arranged on pedestal, end seat, Baden's pipe, temperature compensating element, demonstration movement, control movement and some sensitive switches as signal generator in housing, one end of described Baden pipe is connected on described pedestal, the other end is connected with one end of described temperature compensating element by described end seat, and described sensitive switch is arranged in described housing and with contact operating grip; It is characterized in that,
Described gas density relay also comprises switch governor motion and a signal trigger mechanism identical with described sensitive switch quantity;
Described in each, switch governor motion comprises a fixture, a rotating shaft rivet, a spring and a rotating part; Described rotating shaft rivet is hollow structure; One end of described fixture is connected with one end of described rotating part with spring by described rotating shaft rivet, and the other end of described fixture is fixed on described pedestal or described control movement, so that described rotating shaft rivet is coaxial with the sector shaft of described control movement; The fixing described sensitive switch of the other end of described rotating part;
Described signal trigger mechanism comprises signal trigger mechanism axle and the cam identical with described sensitive switch quantity; Described signal trigger mechanism axle be connected to coaxially described control movement sector shaft one end and be plugged on rotationally in the endoporus of rotating shaft rivet of described switch governor motion; Described cam is arranged on signal trigger mechanism axle and is resisted against correspondingly on the contact lever of each sensitive switch;
When gas density value changes, described Baden pipe and temperature compensating element produce displacement, this displacement drives described sensitive switch by sector gear and the described signal trigger mechanism of described control movement successively, make described sensitive switch send corresponding signal, complete the function of gas density relay.
8. a sulfur hexafluoride gas density relay, comprises relatively independent signal controlling part and indicating value display section; Described signal control part is divided and is comprised control pedestal, control end seat, controls Baden's pipe, controls temperature compensating element, controls movement and some sensitive switches as signal generator; One end of described control Baden pipe is connected on described control pedestal, and the other end is connected with one end of described control temperature compensating element by described control end seat; Described sensitive switch is arranged in housing and with contact operating grip; It is characterized in that, described gas density relay also comprises switch governor motion and a signal trigger mechanism identical with described sensitive switch quantity;
Described in each, switch governor motion comprises a fixture, a rotating shaft rivet, a spring and a rotating part; Described rotating shaft rivet is hollow structure; One end of described fixture is connected with one end of described rotating part with spring by described rotating shaft rivet, and the other end of described fixture is fixed on described control pedestal or controls on movement, so that described rotating shaft rivet is coaxial with the sector shaft of described control movement; The fixing described sensitive switch of the other end of described rotating part;
Described signal trigger mechanism comprises signal trigger mechanism axle and the cam identical with described sensitive switch quantity, described signal trigger mechanism axle be connected to coaxially described control movement sector shaft one end and be plugged on rotationally in the endoporus of rotating shaft rivet of described switch governor motion, described cam is arranged on signal trigger mechanism axle and is resisted against correspondingly on the contact lever of each sensitive switch;
When gas density value changes, described control Baden pipe and control temperature compensating element produce displacement, this displacement passes to described sensitive switch by sector gear and the described signal trigger mechanism of described control movement successively, make described sensitive switch send corresponding signal, complete the function of density monitor;
Described indicating value display section comprises demonstration Baden pipe, displays temperature compensating element,, display base, display end seat, shows movement and pointer, one end of described demonstration Baden pipe is connected on described display base, the other end is connected with one end of described displays temperature compensating element, by described display end seat, the other end of described displays temperature compensating element, is connected with the initiating terminal of described demonstration movement, and described pointer is connected with the central shaft of described demonstration movement.
CN201320578072.5U 2013-09-18 2013-09-18 Sulfur hexafluoride gas density relay Withdrawn - After Issue CN203521303U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320578072.5U CN203521303U (en) 2013-09-18 2013-09-18 Sulfur hexafluoride gas density relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320578072.5U CN203521303U (en) 2013-09-18 2013-09-18 Sulfur hexafluoride gas density relay

Publications (1)

Publication Number Publication Date
CN203521303U true CN203521303U (en) 2014-04-02

Family

ID=50380193

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320578072.5U Withdrawn - After Issue CN203521303U (en) 2013-09-18 2013-09-18 Sulfur hexafluoride gas density relay

Country Status (1)

Country Link
CN (1) CN203521303U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103456563A (en) * 2013-09-18 2013-12-18 上海乐研电气科技有限公司 Sulfur hexafluoride gas density relay
CN103456562A (en) * 2013-09-18 2013-12-18 上海乐研电气科技有限公司 Sulfur hexafluoride gas density relay
CN104319172A (en) * 2014-10-31 2015-01-28 国家电网公司 Teletransmission sulfur hexafluoride gas density and trace moisture relay

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103456563A (en) * 2013-09-18 2013-12-18 上海乐研电气科技有限公司 Sulfur hexafluoride gas density relay
CN103456562A (en) * 2013-09-18 2013-12-18 上海乐研电气科技有限公司 Sulfur hexafluoride gas density relay
CN103456562B (en) * 2013-09-18 2016-06-15 上海乐研电气科技有限公司 A kind of sulfur hexafluoride gas density relay
CN103456563B (en) * 2013-09-18 2016-06-15 上海乐研电气科技有限公司 A kind of sulfur hexafluoride gas density relay
CN104319172A (en) * 2014-10-31 2015-01-28 国家电网公司 Teletransmission sulfur hexafluoride gas density and trace moisture relay
CN104319172B (en) * 2014-10-31 2016-09-07 国家电网公司 A kind of telemetering type sulfur hexafluoride gas density micro-water relay

Similar Documents

Publication Publication Date Title
CN103594284B (en) A kind of sulfur hexafluoride gas density relay
CN201804791U (en) Sulfur hexafluoride gas density relay
CN203521303U (en) Sulfur hexafluoride gas density relay
CN103456561B (en) High-precision sulfur hexafluoride gas density relay
CN101847544A (en) Sulfur hexafluoride gas density relay
CN103456562A (en) Sulfur hexafluoride gas density relay
CN102543571B (en) Anti-vibration sulfur hexafluoride gas density relay
CN109103050B (en) Method for improving precision of gas density relay
CN103715010B (en) A kind of sulfur hexafluoride gas density relay
CN103700541B (en) A kind of sulfur hexafluoride gas density relay of thin type
CN101882532A (en) SF6-gas density relay
CN203674073U (en) Sulfur hexafluoride gas density relay
CN203521305U (en) Sulfur hexafluoride gas density relay
EP3734632B1 (en) Method for improving gas density relay precision and high-precision gas density relay
CN103456563A (en) Sulfur hexafluoride gas density relay
CN207367875U (en) A kind of sulfur hexafluoride gas density relay and antivibration mount
CN203774177U (en) Thin sulfur hexafluoride gas density relay
CN103456560B (en) A kind of high antivibration sulfur hexafluoride gas density relay
CN105513891A (en) Sulfur hexafluoride gas density relay, shockproof method and shockproof device
CN101387891B (en) Vibration resistant pointer type SF6 gas density controller
CN205508709U (en) Sulfur hexafluoride gas density relay
CN207947219U (en) A kind of sulfur hexafluoride gas density relay
CN203774176U (en) Sulfur hexafluoride gas density relay
CN202549717U (en) Vibration-proof sulfur hexafluoride gas density relay
CN203521304U (en) High-precision sulfur hexafluoride gas density relay

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140402

Effective date of abandoning: 20160615

C25 Abandonment of patent right or utility model to avoid double patenting