CN103337420A - Spring operating mechanism with switching-off spring pressure-free cam and operating method of spring operating mechanism - Google Patents
Spring operating mechanism with switching-off spring pressure-free cam and operating method of spring operating mechanism Download PDFInfo
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- CN103337420A CN103337420A CN2013102227797A CN201310222779A CN103337420A CN 103337420 A CN103337420 A CN 103337420A CN 2013102227797 A CN2013102227797 A CN 2013102227797A CN 201310222779 A CN201310222779 A CN 201310222779A CN 103337420 A CN103337420 A CN 103337420A
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Abstract
The invention relates to a spring operating mechanism with a switching-off spring pressure-free cam and an operating method of the spring operating mechanism. The object of the invention is to solve the technical problem of low reliability of existing similar operating mechanisms. The spring operating mechanism comprises a rack, the cam and a five-connecting rod assembly. An output crank arm, a connecting rod A, a connecting rod B, and a switching-on maintaining fan-shaped plate are hinged with one another sequentially so as to form the five-connecting rod assembly. The spring operating mechanism is characterized in that the connecting rod A is hinged with the connecting rod B through a pin shaft; the rack is provided with a curved groove which is matched with the movement track of the pin shaft, wherein the movement track of the pin shaft is a movement track which is formed in a situation in which the pin shaft moves with the five-connecting rod assembly in a linkage manner when the spring operating mechanism changes from a switching-on state to a switching-on state; and when the pin shaft is located at any one end of two ends of the curved groove, in a process from a moment when a switching-on energy-storing spring has not stored any energy to a moment when the switching-on energy-storing spring has stored energy, a squeezing-free state can be realized between a hinging end of the connecting rod A and the connecting rod B, and the cam. The spring operating mechanism with the switching-off spring pressure-free cam of the invention has the advantages of simple structure and stable performance, and is suitable for being used as circuit breaker operating mechanisms with reclosing functions or structurally-improved similar products.
Description
Technical field
The present invention relates to breaker operation mechanism, is spring operating mechanism and the actuating method thereof of no sluice separating spring pressure on a kind of cam.
Background technology
Spring operating mechanism is part indispensable in the high-voltage switch electric appliance; and five-bar mechanism is the pith of realizing the trip free function in the spring operating mechanism; so-called trip free; it is any moment of circuit breaker in making process; if trip(ping) circuit is connected in the protection action, circuit breaker can disconnect reliably.In the prior art, be depicted as the spring operating mechanism that the prior art model is CT18 as Figure of description 5～8, one of them obligatory point of five connecting rods is that cam by operating mechanism retrains in the spring operating mechanism, and such problem that produces is: no matter when, all the time contact between cam and five connecting rods, this just makes that behind the breaker closing, the pressure of sluice separating spring can act on cam.When operating mechanism carries out secondary energy storage, because the pressure of sluice separating spring acts on cam, and the active force of sluice separating spring and the active force of energy accumulation spring are on the contrary again, this just makes when designing and producing cam and camshaft, require very high, otherwise cause secondary energy storage not in place easily, can't normally realize the reclosing function.Just because of above-mentioned reason, the operating mechanism of existing a lot of High-Voltage Electrical Appliances selects for use the mechanism of no trip free function to replace, but like this and be unfavorable for the development and progress of industry can't reaching better actuating requirement, range of application is also comparatively limited to.For this reason, existing operating mechanism haves much room for improvement.
Summary of the invention
For overcoming above-mentioned deficiency, the objective of the invention is to provide to this area spring operating mechanism and the actuating method thereof of no sluice separating spring pressure on a kind of cam, make it solve the technical problem of existing similar mechanism actuating less reliable.Its objective is and be achieved through the following technical solutions.
The spring operating mechanism of no sluice separating spring pressure on a kind of cam, this spring operating mechanism comprises frame, energy storage axle, cam, five link assemblies, combined floodgate connecting lever, combined floodgate energy-stored spring, separating brake connecting lever, separating brake energy-stored spring, five link assemblies by output toggle arm, connecting rod A, connecting rod B, closing a floodgate keeps that fanning strip is hinged successively to be constituted, the energy storage axle connects cam, combined floodgate connecting lever, the combined floodgate connecting lever connects the combined floodgate energy-stored spring, output toggle arm connects the separating brake connecting lever, the separating brake connecting lever connects the separating brake energy-stored spring, the hinged end interlock between cam and above-mentioned connecting rod A, the connecting rod B.Its structural feature is between described connecting rod A, the connecting rod B hinged by bearing pin, described frame is provided with the curved groove that adapts to described bearing pin movement locus, the bearing pin movement locus refers to described spring operating mechanism when closing a floodgate to separating brake, and bearing pin is with the described five link assemblies formed movement locus that links; Position between described curved groove and the described cam is: when bearing pin is positioned at any end in curved groove two ends, the combined floodgate energy-stored spring to thermal energy storage process, is in no squeezed state between the hinged end between described connecting rod A, the connecting rod B and the described cam by energy storage not.By above-mentioned curved groove, to the restriction that puts in place of the hinged end between connecting rod A, the connecting rod B, thereby efficiently solve because of the active force of separating brake energy-stored spring to five link assemblies, and the hinged end between connecting rod A, the connecting rod B is contacted all the time with cam, energy-stored spring energy storage problem not in place causes closing a floodgate.
Described frame is provided with the locating part that is respectively applied to described output toggle arm, combined floodgate maintenance fanning strip rotary spacing.
The actuating method of the spring operating mechanism of no sluice separating spring pressure is on this cam: when described spring operating mechanism is in separating brake or "on" position, the combined floodgate energy-stored spring by energy storage not to thermal energy storage process, described energy storage axle drives cam, the combined floodgate connecting lever rotates, the combined floodgate connecting lever drives the energy storage of combined floodgate energy-stored spring, described five link assemblies are in motionless state, described bearing pin is limited in described curved groove one end, be in no squeezed state between hinged end between described connecting rod A, the connecting rod B and the cam of rotation, the combined floodgate energy-stored spring is realized reliable energy storage.
Structure of the present invention is comparatively simple, and the operating mechanism stable performance is suitable as the breaker operation mechanism with reclosing function and uses, or the like product architecture advances.
Description of drawings
Fig. 1 is that the present invention is in not energy storage status architecture schematic diagram of separating brake.
Fig. 2 is that the present invention is in separating brake energy storage status architecture schematic diagram.
Fig. 3 is that the present invention is in the not energy storage status architecture schematic diagram that closes a floodgate.
Fig. 4 is that the present invention is in the energy storage status architecture schematic diagram that closes a floodgate.
Fig. 5 is that known model is the separating brake energy storing structure schematic diagram not of CT19 spring operating mechanism.
Fig. 6 is that known model is the separating brake energy storing structure schematic diagram of CT19 spring operating mechanism.
Fig. 7 is that known model is the combined floodgate energy storing structure schematic diagram not of CT19 spring operating mechanism.
Fig. 8 is that known model is the combined floodgate energy storing structure schematic diagram of CT19 spring operating mechanism.
The name of sequence number is called among the figure: 1, frame, 2, output toggle arm, 3, connecting rod A, 4, connecting rod B, 5, closing a floodgate keeps fanning strip, 6, the separating brake semiaxis, 7, locating part A, 8, locating part B, 9, locating part C, 10, curved groove, 11, bearing pin, 12, cam.
Embodiment
Now by reference to the accompanying drawings, the present invention is further described.
Accompanying drawing of the present invention has only been drawn with respect to the improved part of prior art, the structure connection of not drawing can be with reference to five rod spring operating mechanisms known in the art, for example model is the CT19 spring operating mechanism, Fig. 5～8th, the part-structure schematic diagram of CT19 spring operating mechanism.
Shown in Fig. 1～4, spring operating mechanism of the present invention comprises frame 1, energy storage axle, cam 12, five link assemblies, locating part, separating brake semiaxis 6, five link assemblies by output toggle arm 2, connecting rod A3, connecting rod B4, closing a floodgate keeps that fanning strip 5 is hinged successively to be constituted, locating part comprises for output toggle arm spacing locating part B8 and locating part C9, and the spacing locating part A7 of maintenance fanning strip that is used for closing a floodgate.In spring operating mechanism, output toggle arm is to link with the separating brake connecting lever, the separating brake connecting lever connects the separating brake energy-stored spring, close a floodgate to keep fanning strip be with frame on the interlock of separating brake semiaxis, cam is by energy storage axle and the interlock of combined floodgate connecting lever, the combined floodgate connecting lever connects the combined floodgate energy-stored spring, and the interlock of the hinged end between cam and above-mentioned connecting rod A, the connecting rod B.Be to be undertaken hinged by bearing pin 11 between connecting rod A of the present invention, the connecting rod B, and frame is provided with the curved groove 10 that adapts to the bearing pin movement locus, when the bearing pin movement locus referred to that spring operating mechanism changes gate-dividing state into by "on" position, bearing pin was with the five link assemblies formed movement locus that links.When stating structure in design, need the relative position between curved groove and the cam be arranged, be set to: when bearing pin is positioned at any end in curved groove two ends, to thermal energy storage process, do not contact between the hinged end between connecting rod A, the connecting rod B and the cam does not have extruding to the combined floodgate energy-stored spring by energy storage not.
The concrete actuating method of operating mechanism of the present invention is similar to existing known spring operating mechanism, so be not described in detail, only describes the interaction relation between five link assemblies and the cam.As shown in Figure 1 and Figure 2, when spring operating mechanism is in gate-dividing state, the combined floodgate energy-stored spring by energy storage not to thermal energy storage process, bearing pin between connecting rod A, the connecting rod B is under the elastic force effect of separating brake energy-stored spring, be limited in curved groove one end, closing a floodgate in five link assemblies this moment keeps fanning strip, limited A of output toggle arm difference, the spacing maintenance of locating part C.Cam turns over an angle along with the energy storage of combined floodgate energy-stored spring, and in the process that puts in place, cam does not contact all the time with hinged end between connecting rod A, the connecting rod B does not have extruding in this rotation, thereby realizes the reliable combined floodgate of combined floodgate energy-stored spring.When spring operating mechanism changes "on" position into by gate-dividing state, namely carry out closing operation by the spring operating mechanism to Fig. 2 state, the bearing pin that cam rotates between drivening rod A, the connecting rod B slides along curved groove, when pin slide during to the curved groove other end, spring operating mechanism is closed a floodgate and is put in place.As shown in Figure 3, Figure 4, when spring operating mechanism is in "on" position, the combined floodgate energy-stored spring by energy storage not to thermal energy storage process, bearing pin between connecting rod A, the connecting rod B is under the elastic force effect of separating brake energy-stored spring, be limited in the curved groove other end, closing a floodgate in five link assemblies this moment keeps fanning strip, output toggle arm respectively by separating brake semiaxis, the spacing maintenance of locating part B.Same, cam turns over an angle along with the energy storage again of combined floodgate energy-stored spring, and in the process that puts in place, cam does not contact all the time not have with hinged end between connecting rod A, the connecting rod B and pushes in this rotations, thereby realization combined floodgate energy-stored spring secondary reliably closes a floodgate.
Above structure and linkage process are intended to illustrate technological means of the present invention, and unrestricted technical scope of the present invention.Those skilled in the art do apparent improvement in conjunction with existing common practise to the present invention, all belong within the institute of the present invention protection range.
Claims (3)
1. the spring operating mechanism of no sluice separating spring pressure on the cam, this spring operating mechanism comprises frame (1), the energy storage axle, cam (12), five link assemblies, the combined floodgate connecting lever, the combined floodgate energy-stored spring, the separating brake connecting lever, the separating brake energy-stored spring, five link assemblies are by output toggle arm (2), connecting rod A(3), connecting rod B(4), close a floodgate and keep fanning strip (5) hinged formation successively, the energy storage axle connects cam, the combined floodgate connecting lever, the combined floodgate connecting lever connects the combined floodgate energy-stored spring, output toggle arm connects the separating brake connecting lever, the separating brake connecting lever connects separating brake energy-stored spring, cam and above-mentioned connecting rod A, hinged end interlock between the connecting rod B; It is characterized in that described connecting rod A(3), connecting rod B(4) between by bearing pin (11) hinged, described frame (1) is provided with the curved groove (10) that adapts to described bearing pin movement locus, the bearing pin movement locus refers to described spring operating mechanism when closing a floodgate to separating brake, and bearing pin is with the described five link assemblies formed movement locus that links; Position between described curved groove and the described cam (12) is: when pin slide to any end in curved groove two ends, the combined floodgate energy-stored spring to thermal energy storage process, is in no squeezed state between the hinged end between described connecting rod A, the connecting rod B and the described cam by energy storage not.
2. the spring operating mechanism of no sluice separating spring pressure on the cam according to claim 1 is characterized in that described frame (1) is provided with the locating part that is respectively applied to described output toggle arm (2), closes a floodgate maintenance fanning strip (5) rotary spacing.
3. actuating method of the spring operating mechanism of no sluice separating spring pressure on the cam according to claim 1, it is characterized in that being in separating brake or "on" position when described spring operating mechanism, the combined floodgate energy-stored spring by energy storage not to thermal energy storage process, described energy storage axle drives cam (12), the combined floodgate connecting lever rotates, the combined floodgate connecting lever drives the energy storage of combined floodgate energy-stored spring, described five link assemblies are in motionless state, described bearing pin (11) is limited in described curved groove (10) one ends, described connecting rod A(3), connecting rod B(4) be in no squeezed state between the hinged end between and the cam of rotation, the combined floodgate energy-stored spring realizes stablizing the energy storage state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102227797A CN103337420A (en) | 2013-06-04 | 2013-06-04 | Spring operating mechanism with switching-off spring pressure-free cam and operating method of spring operating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102227797A CN103337420A (en) | 2013-06-04 | 2013-06-04 | Spring operating mechanism with switching-off spring pressure-free cam and operating method of spring operating mechanism |
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| CN103337420A true CN103337420A (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102227797A Pending CN103337420A (en) | 2013-06-04 | 2013-06-04 | Spring operating mechanism with switching-off spring pressure-free cam and operating method of spring operating mechanism |
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| CN (1) | CN103337420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382517A (en) * | 2020-11-02 | 2021-02-19 | 平高集团有限公司 | Closing system of spring operating mechanism and spring operating mechanism |
Citations (7)
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|---|---|---|---|---|
| CN2266784Y (en) * | 1996-06-28 | 1997-11-05 | 东北电力试验研究院 | Switch spring operation mechanism |
| CN201274255Y (en) * | 2008-07-11 | 2009-07-15 | 厦门华电开关有限公司 | Simple and reliable switching on mechanical locking apparatus for vacuum circuit breaker |
| CN201584350U (en) * | 2009-10-15 | 2010-09-15 | 宁波舜利高压开关科技有限公司 | Switching-on interlocking device of spring operating mechanism |
| CN201616381U (en) * | 2010-01-19 | 2010-10-27 | 西安斯瑞高压电器有限公司 | Cam for vacuum circuit breaker-matched spring operating mechanism |
| CN201877355U (en) * | 2010-11-17 | 2011-06-22 | 余姚市万佳电气有限公司 | Secondary opening tripper of spring operation mechanism |
| CN102709103A (en) * | 2012-05-04 | 2012-10-03 | 张文炎 | Switch on-off spring operating mechanism of grounded switch and isolation switch |
| CN203312203U (en) * | 2013-06-04 | 2013-11-27 | 宁波舜利高压开关科技有限公司 | Spring operating mechanism having cam free from brake opening spring pressure |
-
2013
- 2013-06-04 CN CN2013102227797A patent/CN103337420A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266784Y (en) * | 1996-06-28 | 1997-11-05 | 东北电力试验研究院 | Switch spring operation mechanism |
| CN201274255Y (en) * | 2008-07-11 | 2009-07-15 | 厦门华电开关有限公司 | Simple and reliable switching on mechanical locking apparatus for vacuum circuit breaker |
| CN201584350U (en) * | 2009-10-15 | 2010-09-15 | 宁波舜利高压开关科技有限公司 | Switching-on interlocking device of spring operating mechanism |
| CN201616381U (en) * | 2010-01-19 | 2010-10-27 | 西安斯瑞高压电器有限公司 | Cam for vacuum circuit breaker-matched spring operating mechanism |
| CN201877355U (en) * | 2010-11-17 | 2011-06-22 | 余姚市万佳电气有限公司 | Secondary opening tripper of spring operation mechanism |
| CN102709103A (en) * | 2012-05-04 | 2012-10-03 | 张文炎 | Switch on-off spring operating mechanism of grounded switch and isolation switch |
| CN203312203U (en) * | 2013-06-04 | 2013-11-27 | 宁波舜利高压开关科技有限公司 | Spring operating mechanism having cam free from brake opening spring pressure |
Non-Patent Citations (1)
| Title |
|---|
| SXLZZDC: "《CT19弹簧操动机构》", 29 June 2010 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382517A (en) * | 2020-11-02 | 2021-02-19 | 平高集团有限公司 | Closing system of spring operating mechanism and spring operating mechanism |
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