CN2727928Y - Gear with improved structure for electric operating mechanism of circuit breaker - Google Patents
Gear with improved structure for electric operating mechanism of circuit breaker Download PDFInfo
- Publication number
- CN2727928Y CN2727928Y CN 200420027951 CN200420027951U CN2727928Y CN 2727928 Y CN2727928 Y CN 2727928Y CN 200420027951 CN200420027951 CN 200420027951 CN 200420027951 U CN200420027951 U CN 200420027951U CN 2727928 Y CN2727928 Y CN 2727928Y
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- operating mechanism
- gear wheel
- camshaft
- cam
- gear
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model which discloses a transmission mechanism with improved structure for an electric operating mechanism of a circuit breaker, belonging to the technical field of accessories of a low-voltage switch, and comprising a motor, a drive gear wheel, a speed reducing gear wheel, a cam shaft, a cam, a rolling wheel, a big gear wheel, and a clutch component. The clutch component comprises a chute flange arranged on an inner wall body of the gear wheel seat cover of the big gear wheel, a chute, a sliding pin hole arranged on the cam shaft, a spring contained in the sliding pin hole, and a couple of sliding pins which are respectively arranged on one end of the spring, and the ends of the couple of the sliding pins extend into the chute. The utility model has the advantages that the clutch component which adopts the structure cannot be affected by the fluctuation; in addition, the utility model can be adapted to big torsional moment, and can not be worn out, with convenient assembly.
Description
Technical field
The utility model relates to low tension switch attachment technique field, more particularly is a kind of transmission device of electric operating mechanism of circuit-breaker.
Background technology
The transmission device of present electric operating mechanism of circuit-breaker just in use, its structure is two power transmission shafts, wherein a power transmission shaft is used to connect motor-operating mechanism, and another root power transmission shaft is to be used to connect the manual operation handle, the structure of transmission device also comprises cam, slide block, behind the motor-operating mechanism conducting/opening operation of circuit breaker, the joint portion between cam, the slide block is separated.Dispose the motor-operating mechanism of circuit breaker of the transmission device of this structure, huger, the complex structure of volume, because of the big heaviness of volume, inertia is also big, tangible impact shock is arranged when electric operating, influence is used effect with the low pressure trip device, causes combined floodgates, separating brake operating state to reflect and owes obvious.
In view of this, Chinese patent publication number CN1274166A discloses the transmission device in a kind of electric operating mechanism of circuit-breaker, this patent application technical scheme is: transmission device comprises power transmission shaft, cam, slide block, on power transmission shaft, be provided with arrangement of clutch, this arrangement of clutch is by two clutches, pivot pin, back-moving spring constitutes, wherein first clutch and reducer gear connect, and the upper end of second clutch offers groove, insert the pivot pin that is fixed on the power transmission shaft therebetween, make power transmission shaft and its interlock, second clutch keeps end face engagement with first clutch under the effect of back-moving spring, two clutches in separations/engagement process necessary on, following motion.As seen this arrangement of clutch obviously has the excessive drawback of axial dimension, because whole arrangement of clutch is all axially distributing successively, must leave the space for the clutch motion.And the space of cabinet is certain at present, after circuit breaker and motor-operating mechanism assembling, makes the space in the cabinet become very crowded.So although this patented technology scheme has solved aforesaid some deficiency to a certain extent, overall volume does not reach gratifying degree yet.
And then, Chinese patent Granted publication CN2553495Y has introduced a kind of same shaft drive that has the unilateral bearing clutch, it is that clutch apparatus is set on power transmission shaft, what this clutch apparatus adopted is a kind of unilateral bearing clutch configuration, that is to say one piece of (only) unilateral bearing has been installed on power transmission shaft.This structure can be improved space availability ratio than CN1274166A, because aforementioned structure need be reserved for two space lengths that clutch is realized throwing off/meshing each other.But the unilateral bearing clutch apparatus also has the following disadvantages: the one, can not bear pulsation, high pulling torque; The 2nd, wearing and tearing cause losing efficacy easily, change frequent; The 3rd, the radially fixing relatively difficulty during assembling, though can solve by interference fit, interference fit easily causes damage of bearings.
Summary of the invention
Task of the present utility model is to provide a kind of clutch part can bear pulsation and the transmission device adaptation high pulling torque, that can not wear and tear, assemble the electric operating mechanism of circuit-breaker that is easy to architecture advances.
Task of the present utility model is finished like this, a kind of transmission device of electric operating mechanism of circuit-breaker of architecture advances, it comprises: motor 6, driving gear 10, reduction gearing 7,8, camshaft 33, cam 25, roller 23, gear wheel 28, clutch part, motor 6 is on operating mechanism support 12, driving gear 10 is fixed on the gear shaft axle head of motor 6, nibble with reduction gearing 8 and to join, reduction gearing 8 is nibbled with reduction gearing 7 and is joined, camshaft 33 upper ends are supported on the axle bed 2 of support 1, the lower end is supported on the operating mechanism support 12, cam 25 is fixedly arranged in end under the camshaft 33, roller 23 is located on the cam 25, gear wheel 28 is located on the camshaft 33, and be positioned on the cam 25, and nibble with reduction gearing 7 and to join, clutch part comprises chute flanges 30 and the chute 36 on gear cover for seat 29 inner walls that are opened in gear wheel 28 and is opened in the sliding pin hole 37 on the described camshaft 33 and is installed with a spring 38 in sliding pin hole 37 and a pair of end that lays respectively at spring 38 1 ends extend into sliding pin 39 in the described chute 36.
The utility model has additional a retainer 11 on described operating mechanism support 12, this retainer 11 is corresponding to the position of driving gear 10.
Advantage of the present utility model: because its clutch part has adopted said structure, not influenced by pulsation, can adapt to high pulling torque and can not wear and tear, and also easy to assembly.
Accompanying drawing and drawing explanation
One of removing for the utility model is installed on the electric operating mechanism of circuit-breaker behind the housing of Fig. 1 implements assembling assumption diagram.
Fig. 2 is a cutaway view of the present utility model.
Fig. 3 is the A-A cutaway view of Fig. 2.
Embodiment
Ask for an interview Fig. 1, motor 6 is installed with on the electrically operated operating mechanism support 12 of circuit breaker, the axle head of its output shaft is adorned solid driving gear 10 behind the motor axis hole that passed through on the operating mechanism support 12, this driving gear 10 is meshed with reduction gearing 8, reduction gearing 8 is supported on support 1 respectively and extends on the leg of carrier base 14 sidepieces by the two ends of its gear shaft, and this reduction gearing 8 is nibbled mutually with reduction gearing 7 and joined.Reduction gearing 7 is supported on respectively on support 1 and the operating mechanism support 12 by the two ends of its gear shaft, and is meshed with gear wheel 28.The upper and lower end of camshaft 33 is bearing in respectively and extends on the axle bed 2 and operating mechanism support 12 of support 1.Cam 25 is fastened on end under the camshaft 33, and roller 23 fixes with cam 25 by its roller shaft 24, and this cam 25 drives the carriage action also corresponding to the carriage that is installed in the electric operating mechanism of circuit-breaker on the carrier base 14 by it.Gear wheel 28 is set on the camshaft 33, is meshed with reduction gearing 7.The centre is formed with a pinion stand chamber 29 among gear wheel 28, the chute flanges 30 of described clutch part and chute 36 are opened on the inwall wall body in this pinion stand chamber 29, and the spring 38 of described clutch part, sliding pin 39 are to realize assembly by the sliding pin hole 37 that is opened on the camshaft 33.Specifically: also promptly pass through on the camshaft axis body at camshaft hole 31 places of gear cover for seat 29 corresponding to gear cover for seat 29 positions 33 of camshafts and to offer sliding pin hole 37 at camshaft 33, spring 38 is placed in sliding pin hole 37 central authorities, two ends respectively with an end in contact of two sliding pins 39, the other end of two sliding pins 37 enters into chute 36 outside being stretched over sliding pin hole 37.For spacing to gear wheel 28, on camshaft 33, set firmly a back-up ring 34, keep out by this back-up ring 34 and on gear cover for seat 29, realize spacing to gear wheel 28.Offer an elongated slot 3 at the top of camshaft 33, this elongated slot 3 is used to insert manually operated manual pitman head 5, and colour code graduated dial 4 is installed on camshaft 33, can be by combined floodgate, the gate-dividing state of the observation fenestra Direct observation circuit breaker on the shell.Support 1 shown in the figure is fixing with operating mechanism support 12 by screw 32, and operating mechanism support 12 is fixed through screw 21 and carrier base 14 by screw 22.
Still please refer to Fig. 1, the retainer of setting up 11 described in the utility model is crossed on the operating mechanism support 12 that is fixed to behind the screw 9 on the retainer 11 corresponding to driving gear 10 places by screw threads, the shape of retainer 11 is] font, play the effect that retaining protects driving gear 10 by it, by the state of anticipating shown in the figure as can be known, the situation that even driving gear 10 occurs and the output shaft axle head of motor 6 gets loose, but still can not cause it to leave the output shaft axle head, can continue to play with well nibbling of reduction gearing 8 and join.Give the carriage of electric operating mechanism of circuit-breaker among the figure, it comprises pair of guide rods 13, be located at the sliding seat 20 on the pair of guide rods 13, be fixed on the sliding guide 17 at sliding seat 20 two ends, 15, two end bearings of guide rod 13 also are fixed on the guide rod hole 26 of operating mechanism support 12 2 sides, sliding seat 20 by the one side slide opening 18 and the step surface 35 of opposite side slidably on pair of guide rods 13, the central authorities of sliding seat 20 are formed with a release knob chamber 16, under user mode, this release knob chamber 16 is corresponding to the release knob of circuit breaker, and release knob extends in this release knob chamber 16.Sliding guide 17,15 difference rivet clasps are at the two ends of sliding seat 20, they are corresponding with roller 23 respectively, when cam 25 rotations, roller 25 rotates thereupon, in this process, drive sliding guide 15 or guide plate 17 displacements by roller 23, cause whole sliding seat 20 or right the slip left, thereby the release knob of stirring circuit breaker in the process that sliding seat 20 slides is in and closes a floodgate or gate-dividing state.
Ask for an interview Fig. 2 and in conjunction with Fig. 3, the applicant is described herein course of action of the present utility model, at first narrate the course of action under the electric operating state, motor 6 is after receiving electromotive signal, and its output shaft rotation drives driving gear 10 rotations, because driving gear 10 is meshed with reduction gearing 8, so drive reduction gearing 8 rotations by driving gear 10, because reduction gearing 8 is meshed with reduction gearing 7, rotate again so drive reduction gearing 7 by reduction gearing 8.Drive gear wheel 28 rotations with reason reduction gearing 7, because the chute flanges 30 on gear cover for seat 29 inwalls and cooperatively interact (the seeing Fig. 3 for details) of sliding pin 39 make camshaft 33 rotations.Colour code indicating dial 4 in camshaft 33 upper ends rotates with the rotation of camshaft 33, and simultaneously, the cam 25 in camshaft 33 lower ends rotates with the rotation of camshaft 33.Because roller 23 is adorned by its roller shaft 24 and is fixed on the cam 25, so, when cam 25 rotations, roller 23 rotates thereupon, roller 23 just promotes sliding guide 15 and moves right, whole sliding seat 20 is moved right under the pulling force that overcomes spring 19, in the process that sliding seat 20 moves right, the release knob that extends the circuit breaker in release knob chamber 16 is stirred to the right, carry out separating brake, at this moment, the disappearance position of the cam body of cam 25 is corresponding to sensitive switch 27, the wheel that is sensitive switch 27 and cam 25 is along disengagement, and motor 6 dead electricity quit work.The sliding seat 20 of this moment is in the right-hand member of pair of guide rods 13, just illustrates the residing gate-dividing state of circuit breaker on the colour code indicating dial 4.When motor 6 obtain once more receive the signal of telecommunication after, transmission of the present utility model is according to aforementioned transmission process motion, in motion process, promote sliding guide 17 to moving to left by roller 23, whole sliding seat 20 is moved to left, in this process, the release knob that will be stretched over the circuit breaker in the release knob chamber 16 again dials to the left side from previous deflection right side, realizes closing a floodgate.The combined floodgate, the separating brake that are embodied circuit breaker by above-mentioned course of action move.
Manually operated situation is: manual pitman head 5 is inserted elongated slot 3, the actuating handle, manual pitman head 5 by handle drives camshaft 33 rotations, in this process, sliding pin 39 does not act on chute flanges 30, therefore directly drive cams 25 rotations by camshaft 33, the action principle that is contained in the promotion reason of the 23 pairs of sliding guides of roller 15,17 on the cam 25 and whole sliding seat 20 as hereinbefore.
Claims (2)
1, a kind of transmission device of electric operating mechanism of circuit-breaker of architecture advances, it comprises: motor (6), driving gear (10), reduction gearing (7), (8), camshaft (33), cam (25), roller (23), gear wheel (28), clutch part, motor (6) is on operating mechanism support (12), driving gear (10) is fixed on the gear shaft axle head of motor (6), nibble with reduction gearing (8) and to join, reduction gearing (8) is nibbled with reduction gearing (7) and is joined, camshaft (33) upper end is supported on the axle bed (2) of support (1), the lower end is supported on the operating mechanism support (12), cam (25) is fixedly arranged in end under the camshaft (33), roller (23) is located on the cam (25), gear wheel (28) is located on the camshaft (33), and be positioned on the cam (25), and nibble with reduction gearing (7) and to join, it is characterized in that clutch part comprises chute flanges (30) and the chute (36) on gear cover for seat (29) inner wall that is opened in gear wheel (28) and is opened in the sliding pin hole (37) on the described camshaft (33) and is installed with a spring (38) in sliding pin hole (37) and a pair of end that lays respectively at spring (38) one ends extend into sliding pin (39) in the described chute (36).
2, the transmission device of the electric operating mechanism of circuit-breaker of architecture advances according to claim 1, it is characterized in that having additional a retainer (11) on described operating mechanism support (12), this retainer (11) is corresponding to the position of driving gear (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027951 CN2727928Y (en) | 2004-06-11 | 2004-06-11 | Gear with improved structure for electric operating mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027951 CN2727928Y (en) | 2004-06-11 | 2004-06-11 | Gear with improved structure for electric operating mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727928Y true CN2727928Y (en) | 2005-09-21 |
Family
ID=35043940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420027951 Expired - Fee Related CN2727928Y (en) | 2004-06-11 | 2004-06-11 | Gear with improved structure for electric operating mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2727928Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145454B (en) * | 2007-07-26 | 2010-05-19 | 方云祥 | Mechanical interlocking transmission device of double power supply automatic switching switch |
| CN102280275A (en) * | 2011-07-20 | 2011-12-14 | 山东卓尔电气有限公司 | Operating mechanism of air circuit breaker |
| CN102543499A (en) * | 2011-12-17 | 2012-07-04 | 四川汇友电气有限公司 | Digital electric operating mechanism of isolating switch |
| CN103065884A (en) * | 2013-01-21 | 2013-04-24 | 温州市中基电子有限公司 | Controller of automatic reclosing lock |
| CN103227080A (en) * | 2013-04-09 | 2013-07-31 | 苏州长量电器有限公司 | Operating mechanism of residual leakage protection breaker |
| CN101425405B (en) * | 2007-06-01 | 2013-09-11 | 伊顿公司 | Electrical switching apparatus and stored energy assembly therefor |
-
2004
- 2004-06-11 CN CN 200420027951 patent/CN2727928Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425405B (en) * | 2007-06-01 | 2013-09-11 | 伊顿公司 | Electrical switching apparatus and stored energy assembly therefor |
| CN101145454B (en) * | 2007-07-26 | 2010-05-19 | 方云祥 | Mechanical interlocking transmission device of double power supply automatic switching switch |
| CN102280275A (en) * | 2011-07-20 | 2011-12-14 | 山东卓尔电气有限公司 | Operating mechanism of air circuit breaker |
| CN102543499A (en) * | 2011-12-17 | 2012-07-04 | 四川汇友电气有限公司 | Digital electric operating mechanism of isolating switch |
| CN102543499B (en) * | 2011-12-17 | 2014-10-08 | 四川汇友电气有限公司 | Digital electric operating mechanism of isolating switch |
| CN103065884A (en) * | 2013-01-21 | 2013-04-24 | 温州市中基电子有限公司 | Controller of automatic reclosing lock |
| CN103065884B (en) * | 2013-01-21 | 2016-03-30 | 温州市中基电子有限公司 | automatic reclosing controller |
| CN103227080A (en) * | 2013-04-09 | 2013-07-31 | 苏州长量电器有限公司 | Operating mechanism of residual leakage protection breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050921 Termination date: 20130611 |