CN103366981A - Electric-operation mechanism capable of avoiding malfunction - Google Patents
Electric-operation mechanism capable of avoiding malfunction Download PDFInfo
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- CN103366981A CN103366981A CN2013102867257A CN201310286725A CN103366981A CN 103366981 A CN103366981 A CN 103366981A CN 2013102867257 A CN2013102867257 A CN 2013102867257A CN 201310286725 A CN201310286725 A CN 201310286725A CN 103366981 A CN103366981 A CN 103366981A
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- cam
- slide block
- snap close
- locating shaft
- electric
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Abstract
The invention relates to an electric-operation mechanism capable of avoiding the malfunction. The electric-operation mechanism capable of avoiding the malfunction comprises an electromotor, wherein the electromotor drives a cam to rotate by a gear pair; the cam is arranged on a mounting plate; the cam is provided with a locating shaft; and the locating shaft drives a sliding block in a sliding block mechanism to vertically move. The electric-operation mechanism is characterized in that the mounting plate is provided with a groove; a stop end of a stop assembly extends into the groove and can freely move in the groove; the stop end is used for abutting against the edge of the cam to prevent the cam from moving after a circuit breaker is switched on; the other end of the stop assembly is connected to the mounting plate by a restoring mechanism; the restoring force of the restoring mechanism is far smaller than operation force acted on the cam; and when a locating shaft moves to a switching-off area from a switching-on area, the operation force acted on the cam overcomes the restoring force of the restoring mechanism to enable the stop end of the stop assembly to avoid the cam through the groove. The electric-operation mechanism is designed and invented by aiming at two important mechanisms in the electric operation, and dual protection action is performed for the electric operation to avoid the malfunction.
Description
Technical field
The present invention relates to a kind of motor-operating mechanism (hereinafter to be referred as electricity behaviour) that prevents the mechanism of misoperation occurs in the situation of vibration that is hit, belong to electrical technology field.
Background technology
Low-voltage circuit breaker is mainly born overload, the under voltage of distribution line and power consumption equipment, the usefulness of short-circuit protection.Under normal circumstances, in low-voltage distribution system, circuit breaker closed or disconnect (but breaker operator electricity consumption behaviour) reaches the purpose of power supply, power failure and change-over circuit.Electricity is operating as the external accessory of circuit breaker, is used for far distance automatic separating brake and combined floodgate circuit breaker, is applicable to the higher place of automaticity.
As shown in Figure 1, electricity behaviour comprises motor 1, gear 2, gear 3, gear 4, cam 5, slide block 6, locating shaft 7 etc. usually.During work, motor 1 running drives the gear pair that is comprised of gear 2, gear 3 and gear 4, cam 5 and then gear pair rotates, the rotation band movable slider 6 of the locating shaft 7 on the cam 5 moves up and down, the joystick of circuit breaker is clipped in the slide block 6, relies on this cover winding machine electricity to control combined floodgate and the separating brake of circuit breaker processed.
In some special occasions (thump, vibration etc.), circuit breaker must be kept closed, and holding circuit is powered continuously.Electricity is operating as the important device of remote operation circuit breaker on/off switch, when being subject to powerful impact, never allowing misoperation occurs, otherwise can drive circuit breaker generation misoperation, can cause very serious consequence.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of rear electrically operated institution that produces misoperation of vibration that prevents from being hit.
In order to solve the problems of the technologies described above, technical scheme of the present invention provides a kind of electrically operated institution of false action-proof, comprise motor, motor rotates by gear pair band moving cam, cam is located on the mounting panel, be provided with locating shaft at cam, the slide block that locating shaft drives in the slide block mechanism moves up and down, it is characterized in that: have U-shaped groove at mounting panel, the stop end of stopping element stretches in the U-shaped groove and can move freely therein, the other end of stopping element is connected on the mounting panel via response agency, this stop end props up cam behind breaker closing edge can't rotate cam, act on operating physical force on the cam much larger than the restoring force of response agency, when locating shaft was regional to separating brake by the combined floodgate regional movement, the operating physical force that acts on the cam overcame the restoring force of response agency so that the stop end of stopping element is dodged cam by U-shaped groove;
Described slide block mechanism comprises is located at dorsad suspension hook and the slide block on the cam one side of mounting panel, slide block slides at guide rail, snap close is located at slide block by rotating shaft, and snap close can rotate around the axis, and is provided with spacing hole at an end of snap close, the limited post that is fixed on the slide block is positioned at this spacing hole, one end of spring links to each other with snap close, and the other end is fastened on shoe edge, when slide block is in closing position, the other end that is promoted snap close by spring catches on suspension hook, so that slide block can't move.
Preferably, be formed with described locating shaft at described snap close and follow the arc groove that the stroke side face of camming movement matches, when described locating shaft moved to described separating brake zone, locating shaft promoted described snap close around described rotating shaft rotation so that the other end disengagement suspension hook of described promotion snap close after propping up this arc groove.
Preferably, described stopping element comprises backstop axle and the L shaped connecting lever of the described stop end of conduct that is positioned at described U-shaped groove, the bending part of L shaped connecting lever is located on the described mounting panel by crank arm rotary shaft, L shaped connecting lever can rotate around this crank arm rotary shaft, backstop is located on the end of L shaped connecting lever, and the other end of L shaped connecting lever connects described response agency.
The present invention is directed to two important mechanism among the electricity behaviour, carried out the design invention, electricity behaviour is prevented that misoperation from playing the effect of duplicate protection.
Description of drawings
Fig. 1 is the inner transmission principle figure of electrically operated institution;
Fig. 2 is the cam mechanism front schematic view;
Fig. 3 is cam mechanism reverse side schematic diagram;
Fig. 4 is cam on/off switch zone and U-shaped groove schematic diagram;
Fig. 5 is the slide block mechanism schematic diagram;
Fig. 6 is the cam mechanism schematic diagram;
Fig. 7 is that slide block is in the end that the closes a floodgate schematic diagram that is fixed;
Fig. 8 is the snap close schematic diagram.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing to be described in detail below.
As shown in Figure 1, the electrically operated institution of a kind of false action-proof provided by the invention comprises motor 1, motor 1 rotates by gear pair band moving cam 5, cam 5 is located on the mounting panel 9, is provided with locating shaft 7 at cam 5, and the slide block 6 that locating shaft 7 drives in the slide block mechanism moves up and down.
This invention is played respectively the function of false action-proof to two important transmission mechanisms in the existing electrically operated institution to electrically operated institution.
The false action-proof of first, cam mechanism:
Cam mechanism is very important parts mechanism in electricity behaviour's transmission mechanism.Locating shaft 7 is housed on the cam 5, and cam 5 itself is not the dynamic balancing part, so when impacting to being subject to brute force with vertical from side direction, be subjected to the impact of cam 5 deadweights and inertia, misrouting of cam 5 is moving with causing, thereby band movable slider 6 causes the misoperation of circuit breaker.
Moving for fear of misrouting of cam 5, must be when breaker closing, cam 5 forwards an extreme position to, is not subjected to the impact of foreign impacts power.Be in when circuit breaker in the situation of state conversion, cam 5 must be in free rotation state again, namely is not subjected to the impact of stopping means.
The present invention has designed a stopping element 8, and Fig. 2 is the state that circuit breaker is in combined floodgate.Locating shaft 7 on the cam 5 is fixed on from the side of backstop axle close to, can affect like this proper motion of locating shaft 7 control slide blocks 6, because slide block 6 is gapped with cooperating of locating shaft 7.Locating shaft 7 is fixed on this position, though when being subjected to impulse force cam 5 in the other direction fast rotational also can not arrive the position of misoperation.
In conjunction with Fig. 2 and Fig. 3, in the present invention, have U-shaped groove 10 at mounting panel 9, this U-shaped groove 10 is U-shaped groove, the stop end of stopping element 8 stretches in the U-shaped groove 10 and can move freely therein, this stop end props up cam 5 behind breaker closing edge can't rotate cam 5, and the other end of stopping element 8 is connected on the mounting panel 9 via response agency, and the operating physical force on the cam 5 is much larger than the restoring force of response agency.
Response agency comprises returning spring 22, and the two ends of returning spring 22 are connected and fixed with the other end and the mounting panel 9 of L shaped connecting lever 20 respectively.
As shown in Figure 4, separating brake zone on cam 5 drive locating shafts 7 turn to 12 o'clock, the slide block 6 of locating shaft 7 guiding just can make breaker open operation, otherwise, turn to the combined floodgate zone 11 o'clock of lower end, breaker closing, U-shaped groove are the rotations of limit stop assembly 8, allow stopping element 8 when closing a floodgate, can limit cam 5 and rotate, can allow cam 5 jack-up backstop axles during separating brake.
When instant impact makes cam 5 along the traffic direction fast rotational, backstop axle restriction cam 5 rotates.There is the fixing of returning spring 22 lower end of backstop axle, can make braking roll paste tightly cam 5, and the backstop axle will block one side of cam 5 like this, and as shown in Figure 2, cam 5 can not surpass this extreme position, so cam 5 can not turn to open position.
When needs operation (namely manually with automatic) electricity behaviour, the operating physical force that acts on the cam 5 will be much larger than the spring force of returning spring 22, and cam 5 just can the gradient on cam 5 outwards eject the backstop axle along U-shaped groove like this, the completion status conversion.
In sum, this design can make cam 5 when being subjected to instant impact, prevents that well cam 5 from misrouting movingly, and when manual operation, also can not cause the stuck of cam 5.
The false action-proof of second portion, slide block:
In conjunction with Fig. 5 and Fig. 6, slide block mechanism comprises is located at dorsad suspension hook 13 and the slide block 6 on cam 5 one side of mounting panel 9, slide block 6 slides at guide rail 14, snap close 15 is located at slide block 6 by rotating shaft 16, snap close 15 can 16 rotate around the shaft, end at snap close 15 is provided with spacing hole 17, the limited post 18 that is fixed on the slide block 6 is positioned at this spacing hole 17, one end of spring 19 links to each other with snap close 15, the other end is connected and fixed, when slide block 6 was in closing position, the other end that promotes snap close 15 by spring 19 caught on suspension hook 13 so that slide block 6 is positioned.
Be formed with the arc groove 20 that matches with the outer circumference surface of locating shaft 7 at snap close 15, when locating shaft 7 was moved to separating brake zone 12 by the zone 11 of closing a floodgate, locating shaft 7 propped up these arc groove 20 rear promotion snap closes 15 and 16 rotates its other end that makes and throw off suspension hook 13 around the shaft.
When operation electricity behaviour changed circuit-breaker status, the locating shaft 7 on the cam 5 began to follow cam 5 and rotates, and turns to arc groove 20 places of snap close 15.Locating shaft 7 just can drive snap close 15 and rotate, and the rotation of snap close 15 can make snap close 15 separate with suspension hook 13, and slide block 6 just can move freely like this, and electricity behaviour just can realize the separating brake action.Snap close 15 causes separating brake not in place owing to spacing reason can not rotated very large angle yet.
Claims (3)
1. the electrically operated institution of a false action-proof, comprise motor (1), motor (1) rotates by gear pair band moving cam (5), cam (5) is located on the mounting panel (9), be provided with locating shaft (7) at cam (5), the slide block (6) that locating shaft (7) drives in the slide block mechanism moves up and down, it is characterized in that: have U-shaped groove (10) at mounting panel (9), the stop end of stopping element (8) stretches in the U-shaped groove (10) and can move freely therein, the other end of stopping element (8) is connected on the mounting panel (9) via response agency, this stop end props up cam (5) behind breaker closing edge can't rotate cam (5), act on operating physical force on the cam (5) much larger than the restoring force of response agency, when locating shaft (7) moved to separating brake zone (12) by the zone (11) of closing a floodgate, the operating physical force that acts on the cam (5) overcame the restoring force of response agency so that the stop end of stopping element (8) is dodged cam (5) by U-shaped groove (10);
Described slide block mechanism comprises is located at dorsad suspension hook (13) and the slide block (6) on cam (5) one side of mounting panel (9), slide block (6) slides at guide rail (14), snap close (15) is located at slide block (6) by rotating shaft (16), snap close (15) around the shaft (16) rotates, end at snap close (15) is provided with spacing hole (17), the limited post (18) that is fixed on the slide block (6) is positioned at this spacing hole (17), one end of spring (19) links to each other with snap close (15), the other end is fastened on shoe edge, when slide block (6) when being in closing position, the other end that is promoted snap close (15) by spring (19) catches on suspension hook (13), so that slide block (6) can't move.
2. the electrically operated institution of a kind of false action-proof as claimed in claim 1, it is characterized in that: be formed with described locating shaft (7) at described snap close (15) and follow the arc groove (20) that the stroke side face of camming movement matches, when described locating shaft (7) moved to described separating brake zone (12), locating shaft (7) promoted described snap close (15) around described rotating shaft (16) rotation so that the other end disengagement suspension hook (13) of described promotion snap close (15) after propping up this arc groove (20).
3. the electrically operated institution of a kind of false action-proof as claimed in claim 1, it is characterized in that: described stopping element (8) comprises backstop axle and the L shaped connecting lever (20) of the described stop end of conduct that is positioned at described U-shaped groove (10), the bending part of L shaped connecting lever (20) is located on the described mounting panel (9) by crank arm rotary shaft (21), L shaped connecting lever (20) can rotate around this crank arm rotary shaft (21), backstop is located on the end of L shaped connecting lever (20), and the other end of L shaped connecting lever (20) connects described response agency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102867257A CN103366981A (en) | 2013-07-09 | 2013-07-09 | Electric-operation mechanism capable of avoiding malfunction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102867257A CN103366981A (en) | 2013-07-09 | 2013-07-09 | Electric-operation mechanism capable of avoiding malfunction |
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| Publication Number | Publication Date |
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| CN103366981A true CN103366981A (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102867257A Pending CN103366981A (en) | 2013-07-09 | 2013-07-09 | Electric-operation mechanism capable of avoiding malfunction |
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| CN (1) | CN103366981A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095060A1 (en) * | 2016-11-25 | 2018-05-31 | 江苏省如高高压电器有限公司 | Locking device of isolation breaker |
| CN109449024A (en) * | 2018-12-25 | 2019-03-08 | 无锡韩光电器股份有限公司 | A kind of position local device of drawer type automatic conversion electric appliance |
Citations (6)
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| CN2559087Y (en) * | 2002-03-26 | 2003-07-02 | 上海电器股份有限公司人民电器厂 | Drawer air-blast circuit breaker position locking and trip device |
| EP2068332A1 (en) * | 2007-12-03 | 2009-06-10 | Areva T & D SA | A latching device for a control mechanism for electrical apparatus, and a control mechanism equipped with such a device. |
| CN101625942A (en) * | 2009-08-05 | 2010-01-13 | 上海电器科学研究所（集团）有限公司 | Anti-misoperation device of circuit breaker electric operator |
| CN202013856U (en) * | 2011-01-07 | 2011-10-19 | 莫红文 | Novel electric operating mechanism |
| CN102522232A (en) * | 2011-12-13 | 2012-06-27 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker operation mechanism |
| CN203377125U (en) * | 2013-07-09 | 2014-01-01 | 上海电器科学研究院 | Anti-maloperation electrical operation mechanism |
-
2013
- 2013-07-09 CN CN2013102867257A patent/CN103366981A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559087Y (en) * | 2002-03-26 | 2003-07-02 | 上海电器股份有限公司人民电器厂 | Drawer air-blast circuit breaker position locking and trip device |
| EP2068332A1 (en) * | 2007-12-03 | 2009-06-10 | Areva T & D SA | A latching device for a control mechanism for electrical apparatus, and a control mechanism equipped with such a device. |
| CN101625942A (en) * | 2009-08-05 | 2010-01-13 | 上海电器科学研究所（集团）有限公司 | Anti-misoperation device of circuit breaker electric operator |
| CN202013856U (en) * | 2011-01-07 | 2011-10-19 | 莫红文 | Novel electric operating mechanism |
| CN102522232A (en) * | 2011-12-13 | 2012-06-27 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker operation mechanism |
| CN203377125U (en) * | 2013-07-09 | 2014-01-01 | 上海电器科学研究院 | Anti-maloperation electrical operation mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095060A1 (en) * | 2016-11-25 | 2018-05-31 | 江苏省如高高压电器有限公司 | Locking device of isolation breaker |
| CN109449024A (en) * | 2018-12-25 | 2019-03-08 | 无锡韩光电器股份有限公司 | A kind of position local device of drawer type automatic conversion electric appliance |
| CN109449024B (en) * | 2018-12-25 | 2024-02-02 | 无锡韩光电器股份有限公司 | Position locking device of drawer type automatic switching equipment |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |