CN102013349B - Electric appliance working status inductor of automatic three-position switch - Google Patents
Electric appliance working status inductor of automatic three-position switch Download PDFInfo
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- CN102013349B CN102013349B CN 201010596839 CN201010596839A CN102013349B CN 102013349 B CN102013349 B CN 102013349B CN 201010596839 CN201010596839 CN 201010596839 CN 201010596839 A CN201010596839 A CN 201010596839A CN 102013349 B CN102013349 B CN 102013349B
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Abstract
The invention discloses an electric appliance working status inductor of an automatic three-position switch, belonging to the technical field of a low voltage appliance and comprising a power output shaft, a transmission mechanism, a rotary shaft and an indication member, wherein the transmission mechanism is connected with the power output shaft, the rotary shaft is connected with the transmission mechanism, and the indication member is connected with the rotary shaft. The inductor is characterized by also comprising a drive part for driving the rotary shaft to move and a rotary shaft stabilization mechanism for ensuring the stability of the rotary shaft, wherein the drive part is arranged on the transmission mechanism, and the rotary shaft stabilization mechanism is matched with the rotary shaft; one side at the lower part of the rotary shaft is provided with a drive part groove, and a working face is formed on the outer wall of the rotary shaft; and the drive part extends in the drive part groove, and the rotary shaft stabilization mechanism is matched with the working face. The inductor in the invention has the advantages of ensuring the stable movement of the rotary shaft, enabling the indication member fixed with the rotary shaft to accurately reflect the contact state in real time, providing real and credible indication information for operators and maintainers, and being capable of completely eradicating potential safety hazards.
Description
Technical field
The invention belongs to the low voltage electrical apparatus technology field, be specifically related to a kind of electrical work state indicating device of three position automatic change-overs.
Background technology
In technical field of electric appliances, three position automatic change-overs have three kinds of operating states: the one, and power connection state commonly used (being commonly referred to " ON commonly used "); The 2nd, stand-by power supply on-state (claiming " standby ON " usually); The 3rd, power supply commonly used and stand-by power supply all are in off-state (claiming " disconnecting OFF " usually).
The electrical equipment of known three position automatic change-overs by two groups independently the unit form, every group of unit comprises contact system, arc quenching system and transmission device, is respectively applied to control connection and the disjunction of power supply commonly used or stand-by power supply.Every group of unit drives or drives by same motor-operating mechanism by motor-operating mechanism separately, to realize that by the conversion of power supply commonly used to stand-by power supply, perhaps by the switching of stand-by power supply to power supply commonly used, perhaps power supply commonly used and stand-by power supply disconnect simultaneously.When the dynamic/static contact (moving contact and fixed contact, as follows) of the mechanism of control power supply commonly used closes a floodgate, and during the dynamic/static contact separating brake of the mechanism of control stand-by power supply, the electrical work state indicating device of three position automatic change-overs is designated as " ON commonly used " so; When the dynamic/static contact of the mechanism of control stand-by power supply closes a floodgate, and during the dynamic/static contact separating brake of the mechanism of control power supply commonly used, the electrical work state indicating device of three position automatic change-overs is designated as " standby ON " so; When the dynamic/static contact of the mechanism of the dynamic/static contact separating brake of the mechanism of control power supply commonly used and control stand-by power supply also separating brake, the electrical work state indicating device of three position automatic change-overs is designated as " disconnecting OFF " so.Hence one can see that, because being the indications that rely on indicating device, embodies the electrical work state of three position automatic change-overs, therefore, have only indicating device to indicate the state of dynamic/static contact like clockwork, the electrical work state that could reflect three position automatic change-overs truly, use to operating personnel and inspection personnel provide correct information, stop the generation of misoperation and accident.
The electrical work state indicating device of aforesaid three position automatic change-overs includes an indication piece, be provided with arrow or mark at the top of the outer surface of indication piece with printing or the mode of pasting or in the mode of mint-mark (molded), indication piece is fixed on the rotating shaft (can be described as gear shaft) of certain grade of travelling gear of motor-operating mechanism, in the power supply transfer process, namely in the process that dynamic/static contact closes a floodgate or separating brake is changed, the speed that the motor of motor-operating mechanism all shows as to be similar to is at the uniform velocity rotated, and drives indication piece and follows the motor uniform motion.Though this electrical work state indicating device has strong point simple in structure, but in the use of reality, expose following 2 shortcomings: the one, be difficult to correctly reflect the operating state of dynamic and static contact, and even the anxiety of the indication that the existence work makes mistake, because the combined floodgate of dynamic/static contact or separating brake action are to finish moment, indication piece is then followed in motor and is done uniform rotation, so indication piece does not often correctly reflect the real conditions of contact.Especially after contact melting welding, motor rotates to compress the main contact spring, crossing spring support dead point (stop) rear spring discharges, and the drive transmission mechanism makes the main contact separating brake, but because the cause of contact melting welding, main contact does not move, still be in "on" position, spring also can't discharge and put in place, and in this process, indication piece but rotates with the rotation of motor all the time, stops operating because contact melting welding causes mechanism blockage until motor, and the arrow (also claiming sign) of the indication piece of this moment is in fact away from the combined floodgate indicating positions, even having pointed to open position, indication piece has been made wrong indication, does not namely reflect the time of day of dynamic/static contact, thereby the error message of on off state being provided for operating personnel and maintenance personal, and then buried serious potential safety hazard to operating maintenance; The 2nd, there is ambiguous situation in the indication of indication piece, cause puzzlement for operating personnel's judgement, because after the combined floodgate of contact or separating brake action are finished, because there is the dwell time instability in motor itself, make by the rotation dwell time of the rotating shaft of motor-driven travelling gears at different levels unstable equally, thereby cause being located at indication piece indication position deviation tram on the rotating shaft of certain grade of travelling gear.Equally, because the factor the vibrations in transportation and use also exists the indication piece that is arranged on the rotating shaft is offset, cause indication piece can't point to the tram, can not correctly reflect the definite information of the electrical work state of three position automatic change-overs, and only be one roughly so that be the ambiguous intangible indication information of operating personnel that easily makes.
In view of said circumstances, the applicant thinks and is necessary to be improved that technical scheme described below produces under this background.
Summary of the invention
Task of the present invention be to provide a kind of can be in real time and reflect contact state exactly and use for the operation and maintenance personnel reliably indication information avoid the electrical work state indicating device of the three position automatic change-overs that hidden danger takes place.
Task of the present invention is finished like this, a kind of electrical work state indicating device of three position automatic change-overs, comprise power output shaft, transmission mechanism, rotating shaft and indication piece, transmission mechanism is connected with power output shaft, rotating shaft is connected with transmission mechanism, indication piece is connected with rotating shaft, it is characterized in that: also include one for the actuator that orders about described rotating shaft campaign and a rotating shaft stabilizing mechanism for the stability that ensures rotating shaft, actuator is located on the described transmission mechanism, the rotating shaft stabilizing mechanism matches with rotating shaft, wherein: the side in the bottom of rotating shaft offers an actuator groove, and the outer wall in rotating shaft constitutes working face, described actuator probes into the actuator groove, and described rotating shaft stabilizing mechanism matches with working face.
In a specific embodiment of the present invention, described transmission mechanism comprises first, second, the 3rd gear and the 4th gear, first gear and described power output shaft are fixed, and first gear is extended with a central shaft towards the central authorities of a side of second gear, the second gear kink is on this central shaft, the 3rd, the 4th gear coaxially to each other, and jointly pivot is arranged on the gear shaft on the support that is fixed in three position automatic change-overs, wherein: the 3rd gear is meshed with first gear, and the 4th gear is meshed with second gear, described actuator is fixed on second gear towards the surface of a side of described rotating shaft, and the described rotating shaft stabilizing mechanism that matches with described working face is fixed on the top of described gear shaft or is fixed on the support of three position automatic change-overs.
In another specific embodiment of the present invention, described working face comprises one group of first working face and one group of second working face, first, second working face is one each other every a distribution, and second working face is rectangle or foursquare plane, and first working face is the arc surface of concentric, and the width of first working face is less than the width of second working face, and described actuator groove is corresponding to the bottom of any one second working face in described one group of second working face.
In another specific embodiment of the present invention, in described one group of first working face and one group of second working face, the distance between first working face from first working face to the opposite is greater than the distance between second working face to the opposite from second working face.
In another specific embodiment of the present invention, described actuator groove is that an end has the first circular arc end face and the other end has the deep-slotted chip breaker of the second circular arc end face, and the width of described actuator groove and the diameter of described actuator are suitable.
Also have in the specific embodiment of the present invention, described actuator be shaped as cylindrical body.
More of the present invention and in specific embodiment, described rotating shaft stabilizing mechanism comprises connecting plate, first, second jig arm and spring, one end of connecting plate is connected with an end of first jig arm, the other end of connecting plate is connected with an end of second jig arm, one end of spring is connected with the other end of first jig arm, and the other end of spring is connected with the other end of second jig arm, described rotating shaft is between first, second jig arm, and the middle part of first jig arm and second jig arm is all pasted tactile with described working face.
In of the present invention and then specific embodiment, the central authorities of described rotating shaft offer an indication piece matching hole, and offering one, the central authorities of described indication piece connect pin hole, in the indication piece matching hole, insert one and connect an end of pivot pin, and the other end that connects pivot pin is placed in described connecting in the pin hole.
Of the present invention again more and in specific embodiment, described indication piece matching hole and the described pin hole that connects are hex hole, the described shape of cross section that connects pivot pin is hexagon.
In again of the present invention and then specific embodiment, the outer surface at the top of described indication piece is provided with and is used to indicate the arrow logo that the electrical work state that power supply and stand-by power supply all disconnect was connected or used always to power connection commonly used, stand-by power supply.
Technical scheme provided by the invention is owing to set up the actuator that orders about the rotating shaft campaign and the stable rotating shaft stabilizing mechanism of action that is used for ensureing rotating shaft, and constitute working face around the bottom of rotating shaft offered an actuator groove of inserting for actuator and the outer wall with rotating shaft, cooperated with the actuator groove by actuator, and matched with working face by the rotating shaft stabilizing mechanism, thereby get so that the rotating shaft stable motion, guarantee that the indication piece of fixing with rotating shaft reflects contact state in real time and exactly, not only can be operation and attendant genuine and believable indication information is provided, and can stop hidden danger.
Description of drawings
Fig. 1 is one embodiment of the present of invention structure chart.
Fig. 2 is the exploded sketch of Fig. 1 structure.
Fig. 3 is the schematic diagram of rotating shaft of the present invention.
Fig. 4 is the schematic diagram of indication piece of the present invention.
Fig. 5 is the structure chart of rotating shaft stabilizing mechanism of the present invention.
Fig. 6 shows as the schematic diagram of power connection state commonly used for the electrical work state of three position automatic change-overs of the present invention.
Fig. 7 is the schematic diagram that the arrow logo of indication piece of the present invention points to power connection commonly used.
Fig. 8 shows as the schematic diagram of power-off state for the electrical work state of three position automatic change-overs of the present invention.
Fig. 9 is the schematic diagram that the arrow logo indication power supply of indication piece of the present invention disconnects.
Figure 10 shows as the schematic diagram of stand-by power supply on-state for the electrical work state of three position automatic change-overs of the present invention.
Figure 11 is that the arrow logo of indication piece of the present invention points to the schematic diagram that stand-by power supply is connected.
Figure 12 is the schematic diagram of angle and the time relationship of power output shaft of the present invention and indication piece.
Figure 13 is an alternative embodiment of the invention structure chart.
Figure 14 is the schematic diagram that the support of rotating shaft stabilizing mechanism of the present invention and three-position switch fixes.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the present invention program to the description of embodiment, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Please be referring to Fig. 1 and Fig. 2, the power output shaft 1 that provides undoubtedly is to be connected with the motor-operating mechanism of three position automatic change-overs, and the motor by motor-operating mechanism orders about its motion, although so overall picture of the not shown motor-operating mechanism of applicant, motor particularly, but because unshowned these parts all belong to known technology, so cause puzzlement can't for those of skill in the art's understanding.Power output shaft 1 to be used for the matched end of transmission mechanism 2 be that the upper end of illustrated power output shaft 1 constitutes a diameter and connects spindle nose 11 less than the gear of the diameter of the body of power output shaft 1, connect the transmission mechanism 2 that spindle nose 11 is about to mention below making by this gear and be in transmission connection with power output shaft 1.
Preferably but not the structure of the transmission mechanism 2 that definitely is limited to is as follows: comprise first, second, third gear 21, the 22,23 and the 4th gear 24, it is fixing that the gear of first gear 21 and aforesaid power output shaft 1 connects spindle nose 11, be extended with a central shaft 211 at first gear 21 towards the central authorities of a side of second gear 22, second gear 22 passes through its central installing hole 221 kinks on central shaft 211, thereby make first, second gear 21,22 constitute coaxial setting, but do not drive 22 rotations of second gear during rotation of first gear 21.Three, the 4th gear 23,24 is arranged on the gear shaft 231 coaxially to each other, that is to say, three, the 4th gear 23,24 equal pivots are arranged on the gear shaft 231, and gear shaft 231 is fixed on the support 7 (shown in Figure 14) of motor-operating mechanism of three position automatic change-overs, and offers a plate fixing screw hole 2311 in the central authorities of the top of this gear shaft 231 end face.Aforesaid the first, the 3rd gear 21,23 is engaged with each other, and aforesaid the second, the 4th gear 22,24 is engaged with each other equally.Drive first gear 21 by power output shaft 1, drive the 3rd gear 23 by first gear 21, drive second gear 22 by the 3rd gear 23 by the 4th gear 24.
Ask for an interview Fig. 3 and Fig. 4 and continuation in conjunction with Fig. 1 and Fig. 2, the bottom of the central authorities of one rotating shaft 3 offers the central shaft chamber 34 of stepping down, match with aforesaid central shaft 211 in this central shaft chamber 34 of stepping down, be that central shaft 211 probes into this central shaft and steps down in the chamber 24, and the top in the central authorities of rotating shaft 3 is that rotating shaft 3 offers an indication piece matching hole 33 (Fig. 2 shows) towards the central authorities of an end of indication piece 4, in indication piece matching hole 33, insert and connect an end (lower end) of pivot pin 331, and the other end (upper end) that connects pivot pin 331 is stretched over outside the indication piece matching hole 33.By shown in Figure 4, offer one at indication piece 4 towards the central authorities of a side of rotating shaft 3 and connect pin hole 42, the aforesaid parts that connect pivot pin 331 that are stuck in outside the indication piece matching hole 33 are placed in just and connect in the pin hole 42, thereby by connecting pivot pin 331 indication piece 4 are fixedlyed connected with rotating shaft 3.Preferred scheme with indication piece matching hole 33 with connect pin hole 42 and all be designed to hexagonal hole, therewith adaptably, is designed to hexagon with the shape of cross section that connects pivot pin 331, and what namely constitute the hexagon formula connects pivot pin 331.By illustrated in figures 1 and 2, (on the end face outward) is provided with an arrow logo 41 on the end face on the top of indication piece 4, this arrow logo 41 both can directly be printed on the indication piece 4, also can adopt and paste in the method for paste on the indication piece 4, can also be integrally formed on the indication piece 4 with projection or recessed production method.The applicant need to prove: rotating shaft 3 can also with indication piece 4 integral productions, thereby can save aforesaid indication piece matching hole 33, connect pin hole 42 and connect pivot pin 331.
Please see Fig. 1 and Fig. 2 by emphasis, main points as technical scheme provided by the invention: the side in the bottom of aforesaid rotating shaft 3 extends a hemizonid 35 that is similar to as handling knob, and makes the bottom of rotating shaft 3 constitute that an end has the first circular arc end face 311 by this hemizonid 35 and the other end has the actuator groove 31 of the arc of one second circular arc end face 312.And around the axis body of rotating shaft 3, constitute working face 32, working face 32 comprises one group of first working face 321 and one group of second working face 322, in the present embodiment, the quantity of first working face 321 and second working face 322 equates, more precisely, the quantity of one group of first working face 321 is 4, and the quantity of one group of second working face 322 also is 4, is one each other every a distribution.Certainly, if first, second working face 321,322 quantity are become each 6 or each 8 etc., and occur with even number, should belong to technical scheme category of the present invention so and be protected.Second working face 322 is rectangle or foursquare plane, and first working face 321 is preferably the arc surface of concentric, also can be the very little plane of width, even can narrowly be condensed to seamed edge, and present embodiment adopts arcwall face, i.e. aforesaid arc surface.Distance between first working face 321 from first working face 321 to the opposite namely forms the distance between two first working faces 321 of angular dependence each other than the distance between second working face 322 to the opposite (i.e. distance between two aspectant second working faces 322) is big from second working face 322.Second gear 22 of aforesaid transmission mechanism 2 namely second gear 22 towards the surface of a side of rotating shaft 3 with welding or riveted joint or with threaded engagement or the actuator 5 that fixedly has a present invention program to be set up with other similar fixed form, present embodiment employing actuator 5 and second gear 22 are one-body molded, the shape of actuator 5 is preferably cylindrical body, this actuator 5 probes in the aforesaid actuator groove 31, know that therefrom the width of actuator groove 31 should adapt with the diameter of actuator 5.Also be equipped with a rotating shaft stabilizing mechanism 6 of stability that be used for to ensure the motion of rotating shaft 3 in aforesaid rotating shaft 3, more precisely, rotating shaft stabilizing mechanism 6 carries on transmission mechanism 2, and matches with rotating shaft 3.
Ask for an interview Fig. 5 and still in conjunction with Fig. 1 and Fig. 2, preferably but not the structure of the rotating shaft stabilizing mechanism 6 that definitely is limited to is as follows: comprise connecting plate 61, first, second jig arm 62,63 and spring 64, the middle part of connecting plate 61 offers connecting plate fixing hole 611, through connecting plate fixing hole 611 that connecting plate 61 is fixing with the connecting plate fixing screw hole 2311 on the aforesaid top end face that is opened in gear shaft 231 by connecting plate hold-down screw 6111, thereby rotating shaft stabilizing mechanism 6 is equipped on the transmission mechanism 2, to be illustrated right-hand member be connected with an end pivoting of connecting plate 61 with first pin 621 one end of first jig arm 62, one end of second jig arm 63 is pivotally connected with the other end of connecting plate 61 with second pin 631, the other end (diagram left end) in first jig arm 62 offers one first spring fixed hole 622, and offer one second spring fixed hole 632 at the other end (illustrated left end) of second jig arm 63, one end of spring 64 and first spring fixed hole 622 are fixing, and the other end and second spring fixed hole 632 are fixing.Aforesaid rotating shaft 3 is corresponding between first, second jig arm 62,63, that is to say, first, second jig arm 62,63 middle part respectively with the working face 32 that is formed in the rotating shaft 3 in any two second working faces 322 paste and touch, namely first jig arm 62 and second working face 322 paste and touch, second jig arm 63 is pasted with another second working face 322 and is touched, more particularly, first, second jig arm 62,63 is pasted with two second working faces 322 that face each other respectively and is touched.When working face 32 and first, second jig arm 62,63 are pasted when touching mutually, rotating shaft 3 is in settling position, and when rotating shaft 3 was in other position beyond the aforesaid settling position, first, second jig arm 62,63 still provided one to make rotating shaft 3 to the pretightning force of settling position action to rotating shaft 3 all the time.As long as can satisfy when rotating shaft 3 is in settling position, first, second jig arm 62,63 can with working face 32 in 322 subsides of arbitrary aspectant second working face tactile.
Ask for an interview Figure 14, this figure has illustrated the connecting plate 61 of aforesaid rotating shaft stabilizing mechanism 6 is fixed on the support 7 of three position automatic change-overs, thereby show that it is fixing that connecting plate 61 is not limited to the connecting plate fixing screw hole 2311 of gear shaft 231 top ends of the 3rd gear 23 of aforesaid and transmission mechanism 2.
Please be referring to Fig. 6 to Figure 12, aforesaid arrow logo 41 in entire work process respectively with the appliance panel of three position automatic change-overs on ON commonly used, standby ON and disconnect these three signs of OFF and match, thereby indicate the electrical work state of three position automatic change-overs.Following applicant describes the course of work of the electrical work state indicating device of the present invention's three position automatic change-overs, be example with ON commonly used (i.e. power connection commonly used) → disconnect OFF (power supply commonly used and stand-by power supply all disconnect) → standby ON (being that stand-by power supply is connected), power output shaft 1 is in whole process and at the uniform velocity changes angle, as by line segment a shown in Figure 12.Line segment a among Figure 12 is essentially motor (motor output shaft) rotating curve; Line segment b is the indication piece rotating curve; Among Figure 12 45 ° and 135 ° refer to that the switch contact of three position automatic change-overs closes, the separating brake operating point, also are the starting points of rotating 4 moments of indication piece; T1 is the time point that indication piece 4 begins to rotate; T2 is moving time point of 4 beginning wink of indication piece; T3 is the moving time points that finish of 4 winks of indication piece; T7/2 is the intermediate point of whole rotation; T4 is the time point that indication piece 4 begins to rotate; T5 is moving time point of 4 beginning wink of indication piece; T6 is the moving time points that finish of 4 winks of indication piece; T7 is whole rotation concluding time point; Time point when t9 and t8 are reverse rotation (t2 when being equivalent to just change and t5).
As Fig. 6 and 7, arrow logo 42 " ON commonly used ", the electrical work state of three position automatic change-overs is in power supply closing position commonly used.In conjunction with Fig. 1, owing to clockwise rotating of power output shaft 1, the transmission mechanism compression contacts main spring (known technology, this patent is not shown) of three position automatic change-overs, this moment, main contact did not move.Power output shaft 1 drives first gear 21 and rotates, because first gear 21 is meshed with the 3rd gear 23, and being meshed with the 4th gear 24 of second gear 22, therefore first gear 21 drives 23 rotations of the 3rd gear, and then by 22 rotations of the 4th gear 24 drives second gear, actuator 5 just is in the middle part of actuator groove 31 of the arc of rotating shaft 3, the rotation of second gear 22 makes actuator 5 forward the first circular arc end face 311 of the actuator groove 31 of rotating shaft 3 to, in this process, because first of rotating shaft stabilizing mechanism 6, second jig arm 62,63 tightly are resisted against on one group of second working face 322 of rotating shaft 3, make rotating shaft 3 not rotate, be that indication piece 4 does not rotate, shown in the line segment b1 of Figure 12, correctly embodied the time of day of contact; Afterwards, power output shaft 1 is rotated further, actuator 5 on second gear 22 contacts with the first circular arc end face 311 of actuator groove 31, and push the first circular arc end face 311, rotating shaft 3 is clockwise rotated with power output shaft 1, and one group of first working face 321 pushes first, second jig arm 62,63 simultaneously, and the distance between first, second jig arm 62,63 and the end that spring 64 is connected is increased gradually, the rotating speed of this moment is similar to uniform rotation, shown in the line segment b2 of Figure 12; When 3 driven 5 of rotating shafts promote and turn over 45 when spending, the contact main spring is compressed when being the dead point, this moment, the contact main spring discharged, power supply main contact separating brake commonly used, and this moment, first, second jig arm 62, distance between 63 is strutted maximum by one group of first working face 321 of rotating shaft 3, after turning over this angle, rotating shaft 3 relative first, second jig arm 62,63 radius of turn reduces, make and win, second jig arm 62,63 clamp rapidly under the pulling force effect of spring 64, first, second jig arm 62,63 put on the direction of the power in the rotating shaft 3 and the center of rotation of rotating shaft 3 is offset, and produce a rotating torque, and the direction of this rotating torque are identical with the rotation direction of rotating shaft 3, force rotating shaft 3 to turn over 45 degree (45 °) fast, shown in the line segment b3 of Figure 12, and finally stop, shown in the line segment b4 of Figure 12, at this moment, the arrow logo 41 of indication piece 4 has also pointed to " disconnecting OFF " position fast, as Fig. 8, shown in 9, simulated the separating brake action of power supply main contact commonly used substantially.
Power output shaft 1 continues to clockwise rotate, and in conjunction with Figure 10 to 12, the mechanism action principle of closing a floodgate from the open position to the stand-by power supply is consistent with above-mentioned content.Power output shaft 1 is in whole process and at the uniform velocity changes angle, as line segment a.Indication piece 4 is represented by line segment b5, b6, b7, the b8 of Figure 12 respectively successively from disconnection OFF to the angle-time graph of the indication process of standby ON.
When power output shaft 1 rotates counterclockwise, three position automatic transfer switching electric appliance operating states disconnect OFF-ON commonly used from standby ON-, the operating principle of its whole process is consistent with aforementioned content, just direction is opposite, and the angle-time graph of indication piece 4 from standby ON to the indication process that disconnects OFF represented successively by line segment b8, b9, b10, b5, b4, b11, b12, the b1 of Figure 12 respectively.
The first little counterbore 222 (Fig. 2 shows) on second gear 22 and a pair of second little counterbore 232 on the 3rd gear 23 and the 3rd little counterbore 241 on the 4th gear 24 all are as assembly mark when assembling for gear.
The module of the variation of power output shaft 1 and gear shaft 231 centre-to-centre spacing, first gear 21, second gear 22, the 3rd gear 23 and the 4th gear 24 and the variation of the number of teeth all can produce different gear ratios.This embodiment of this patent has adopted 0.5 gearratio, realized first gear, 21 Rotate 180 degree (180 °), and second gear 22 revolves the effect that turn 90 degrees (90 °).Said structure has been realized finishing from power supply commonly used to the switching overall process of stand-by power supply when power output shaft 1 rotates 360 degree (360 °), and the indicating range of indication piece 4 is 180 degree (180 °), and namely the mark branch of ON commonly used and standby ON is located at both sides.Prevented the following situation of prior art: because indication piece is set directly on the rotating shaft, when the electrical work state of three position automatic change-overs is finished whole transfer process from power supply commonly used to stand-by power supply, the angle that rotating shaft turns over is near 360 °, the angle that indication piece turns over is near 360 °, what namely Zhi Shi sign " ON commonly used ", " standby ON " indicated is very approaching, in case indication piece is offset, indication piece just can not point to correct position, can not correctly reflect the residing location status of three position automatic transfer switching electric appliances.
Certainly, this patent does not limit other gear ratio value, therefore can adjust the angular range of indication flexibly.
Ask for an interview Figure 13, this patent also actuator 5 directly can be fixed on the power output shaft 1 or with power output shaft 1 relative fixed, as shown in figure 13, the rotating part at actuator 5 places directly is fixed on the power output shaft 1, such structure has been saved first gear 21, second gear 22 and the 3rd, the 4th gear 23,24, can make indication piece can realize " rotation of slack---of short duration slow rotation---moment " such course of action equally, reflection contact action situation that can be correct.But owing to there is not gear ratio value, can't realize the supplementary technology effect that above preferred embodiment is brought: 1. the indicating range of indication piece 4 is 180 degree (180 °), and namely the mark branch of ON commonly used and standby ON is located at both sides; 2. can adjust the angular range of indication flexibly.
In sum, the present invention program is by offering actuator groove 31 in rotating shaft 3, utilize cooperating of actuator 5 and actuator groove 31, the stabilizing mechanism of rotating shaft simultaneously 6 makes indication piece 4 can realize coming from the slack course of action that rotates until moment to of short duration slow rotation.
Claims (9)
1. the electrical work state indicating device of a position automatic change-over, comprise power output shaft (1), transmission mechanism (2), rotating shaft (3) and indication piece (4), transmission mechanism (2) is connected with power output shaft (1), rotating shaft (3) is connected with transmission mechanism (2), indication piece (4) is connected with rotating shaft (3), it is characterized in that: also include one and be used for ordering about actuator (5) and the rotating shaft stabilizing mechanism (6) for the stability that ensures rotating shaft (3) that described rotating shaft (3) is moved, actuator (5) is located on the described transmission mechanism (2), rotating shaft stabilizing mechanism (6) matches with rotating shaft (3), wherein: the side in the bottom of rotating shaft (3) offers an actuator groove (31), and the outer wall in rotating shaft (3) constitutes working face (32), described actuator (5) probes into actuator groove (31), described rotating shaft stabilizing mechanism (6) matches with working face (32), described actuator groove (31) is that an end has the first circular arc end face (311) and the other end has the deep-slotted chip breaker of the second circular arc end face (312), and the diameter of the width of described actuator groove (31) and described actuator (5) is suitable.
2. the electrical work state indicating device of three position automatic change-overs according to claim 1, it is characterized in that described transmission mechanism (2) comprises first, second, the 3rd gear (21,22,23) and the 4th gear (24), first gear (21) is fixing with described power output shaft (1), and first gear (21) is extended with a central shaft 211 towards the central authorities of a side of second gear (22), second gear, 22 kinks are on this central shaft 211, the 3rd, the 4th gear 23,24 coaxially to each other, and jointly pivot is arranged on the gear shaft 231 on the support that is fixed in three position automatic change-overs, wherein: the 3rd gear (23) is meshed with first gear (21), and the 4th gear (24) is meshed with second gear (22), described actuator (5) is fixed on second gear (22) towards the surface of a side of described rotating shaft (3), and the described rotating shaft stabilizing mechanism (6) that matches with described working face (32) is fixed on the top of described gear shaft (231) or is fixed on the support (7) of three position automatic change-overs.
3. the electrical work state indicating device of three position automatic change-overs according to claim 1, it is characterized in that described working face (32) comprises one group of first working face (321) and one group of second working face (322), first, second working face (321,322) be one each other every a distribution, and second working face (322) is rectangle or foursquare plane, and first working face (322) is the arc surface of concentric, and the width of first working face (321) is less than the width of second working face (322), and described actuator groove (31) is corresponding to the bottom of any one second working face (322) in described one group of second working face (322).
4. the electrical work state indicating device of three position automatic change-overs according to claim 3, it is characterized in that in described one group of first working face (321) and one group of second working face (322) distance between first working face (321) from first working face (321) to the opposite is greater than the distance between second working face (322) to the opposite from second working face (322).
5. the electrical work state indicating device of three position automatic change-overs according to claim 1 and 2 is characterized in that the cylindrical body that is shaped as of described actuator (5).
6. the electrical work state indicating device of three position automatic change-overs according to claim 1 and 2, it is characterized in that described rotating shaft stabilizing mechanism (6) comprises connecting plate (61), first, second jig arm (62,63) and spring (64), one end of connecting plate (61) is connected with an end of first jig arm (62), the other end of connecting plate (61) is connected with an end of second jig arm (66), one end of spring (64) is connected with the other end of first jig arm (62), and the other end of spring (64) is connected with the other end of second jig arm (63), described rotating shaft (3) is positioned at first, second jig arm (62,63) between, and the middle part of first jig arm (62) and second jig arm (63) is all pasted tactile with described working face (32).
7. the electrical work state indicating device of three position automatic change-overs according to claim 1, the central authorities that it is characterized in that described rotating shaft (3) offer an indication piece matching hole (33), and offering one, the central authorities of described indication piece (4) connect pin hole (42), in indication piece matching hole (33), insert one and connect an end of pivot pin (331), and the other end that connects pivot pin (331) is placed in described connecting in the pin hole (42).
8. the electrical work state indicating device of three position automatic change-overs according to claim 7, it is characterized in that described indication piece matching hole (33) and the described pin hole (42) that connects are hex hole, the described shape of cross section that connects pivot pin (331) is hexagon.
9. according to the electrical work state indicating device of claim 1 or 7 described three position automatic change-overs, the outer surface that it is characterized in that the top of described indication piece (4) is provided with and is used to indicate the arrow logo (41) that the electrical work state that power supply and stand-by power supply all disconnect was connected or used always to power connection commonly used, stand-by power supply.
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| CN 201010596839 CN102013349B (en) | 2010-12-17 | 2010-12-17 | Electric appliance working status inductor of automatic three-position switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010596839 CN102013349B (en) | 2010-12-17 | 2010-12-17 | Electric appliance working status inductor of automatic three-position switch |
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| CN102013349A CN102013349A (en) | 2011-04-13 |
| CN102013349B true CN102013349B (en) | 2013-07-03 |
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| CN 201010596839 Active CN102013349B (en) | 2010-12-17 | 2010-12-17 | Electric appliance working status inductor of automatic three-position switch |
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| CN102214524B (en) * | 2011-04-20 | 2012-12-26 | 常熟开关制造有限公司(原常熟开关厂） | Operating mechanism of power supply switching device |
| CN102368444B (en) * | 2011-11-12 | 2013-12-25 | 大连叉车有限责任公司 | Remote short-range double-control mutual-control power supply main switch |
| CN102426950B (en) * | 2011-12-15 | 2014-06-11 | 常熟开关制造有限公司(原常熟开关厂） | Contact position indicating device of automatic change-over switch |
| SG2012095022A (en) | 2012-12-21 | 2014-07-30 | Schneider Electric South East Asia Hq Pte Ltd | Visual indication for adjustable component |
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| CN107994679B (en) * | 2017-12-25 | 2019-12-17 | 常熟开关制造有限公司(原常熟开关厂） | Dual-power automatic transfer switch conversion control method and dual-power automatic transfer switch |
| CN108964252A (en) * | 2018-05-24 | 2018-12-07 | 太仓鸿策创达广告策划有限公司 | A kind of power-out reset system |
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| CN109388868B (en) * | 2018-09-25 | 2023-04-07 | 陕西飞机工业（集团）有限公司 | Nail load calculation method considering nail hole contact and nail bending |
| CN110703659B (en) * | 2019-10-28 | 2020-12-01 | 北京动力机械研究所 | Three-position switching electric mechanism control device |
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