CN203850167U - Closing retaining device - Google Patents
Closing retaining device Download PDFInfo
- Publication number
- CN203850167U CN203850167U CN201420204540.7U CN201420204540U CN203850167U CN 203850167 U CN203850167 U CN 203850167U CN 201420204540 U CN201420204540 U CN 201420204540U CN 203850167 U CN203850167 U CN 203850167U
- Authority
- CN
- China
- Prior art keywords
- closing
- master part
- magnet master
- connecting lever
- closing magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 230000009467 reduction Effects 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 5
- 230000000717 retained effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a closing retaining device. The closing retaining device comprises a support, a closing retaining pawl, a crank arm, a pressing plate and a return torsional spring, wherein the support is disposed inside a frame of a breaker, the closing retraining pawl is disposed on the support and can freely move, the pressing plate is fixed on the support, the return torsional spring is arranged between the closing retaining pawl and the pressing plate, the top of the crank arm is provided with an arc-shaped outer edge, the front end of the closing retaining pawl is equipped in a riveted manner with a limiting block, the closing retaining pawl always keeps moving on the arc-shaped outer edge of the crank arm through the limiting block during a closing process because of the action of the return torsional spring, the side face of the top of the crank arm is provided with a roller, and the closing retaining pawl is buckled on the roller of the crank arm after the crank arm is rotated to a closing position, so as to realize that the breaker is retained at the closing position. According to the closing retaining device, the closing retaining pawl is kept sliding on the arc-shaped outer edge of the crank arm of a rotating shaft by the limiting block in the closing process, and the moving process is smooth, so the rotating shaft can be easily retained by the closing retaining pawl when closing is in position, and the closing reliability is raised.
Description
Technical field
The utility model relates to circuit breaker, relates in particular to a kind of closing keeping device.
Background technology
Closing keeping device in existing operating mechanism, comprise bracing frame, by bearing pin, be loaded on bracing frame and the closing magnet master part that can rotate around bearing pin, be loaded on the reduction torsion spring on bearing pin, reduction torsion spring one end is stuck in the pressing plate being loaded on support, the other end is stuck on closing magnet master part, at the initial stage of making process, contacting on the connecting lever machinery-free in closing magnet master part and rotating shaft, the later stage of closing a floodgate, connecting lever promotes closing magnet master part rotation with impacting in rotating shaft rotation process, after combined floodgate energy releases, rotating shaft is because of the driving of degradedness, after inertia overshoot, will no longer along former direction, rotate, and go back to round about, contact with the closing magnet master part of effect Regression at reduction torsion spring, and stop being rotated further of rotating shaft, now, circuit breaker remains on closing position.
Closing keeping device in existing operating mechanism, connecting lever in closing magnet master part and rotating shaft is independent separately, contact on the initial stage of making process machinery-free, the later stage that connecting lever rotates just relies on the roller on it to promote closing magnet master part and rotates, because connecting lever has now had certain acceleration, to force closing magnet master part to be rotated because impacting with certain speed, be subject to the impact of closing magnet master part reduction torsion spring, likely because of the reset of rotating shaft and the reset mismate of closing magnet master part, make connecting lever roller can not with closing magnet master part success snapping, rotating shaft continues to rotate and finally get back to open position towards separating brake direction, cause breaker closing failure.
Utility model content
The technical assignment of technical problem to be solved in the utility model and proposition is that prior art is improved, a kind of closing keeping device is provided, solve rotating shaft reset and the closing magnet master part reset mismate of closing keeping device traditional in current technology, make connecting lever roller can not with closing magnet master part success snapping, cause the problem of breaker closing failure.
For solving above technical problem, the technical solution of the utility model is:
A kind of closing keeping device, comprise bracing frame, closing magnet master part, connecting lever, pressing plate and reduction torsion spring, it is characterized in that, described support frame device is in the framework of circuit breaker, closing magnet master part device is also free to rotate on bracing frame, pressing plate is fixed on bracing frame, between closing magnet master part and pressing plate, device has reduction torsion spring, connecting lever top is set to arc outer rim, guide vane end stop is equipped with in the riveting of closing magnet master part front end, closing magnet master part remains in the arc outer rim of connecting lever and slides because reduction torsion spring acts in making process by guide vane end stop, the side at connecting lever top is provided with roller, connecting lever rotates to closing magnet master part after closing position and snaps onto on the roller of connecting lever, realize circuit breaker and remain on closing position.The utility model changes closing magnet master part in closing keeping device in the past and the fit system of the connecting lever in rotating shaft, rely on after roller on rotating shaft connecting lever clashes into and rotate, the connecting lever roller snapping returning after close a floodgate until the final closing magnet master part that slides from connecting lever outer rim while putting in place and inertia overshoot.The process of the utility model from separating brake to combined floodgate, with rotating shaft, rotate, closing magnet master part remains on smooth sliding in the arc outer rim of connecting lever, until closing position, after the connecting lever roller returning after the closing magnet master part sliding from connecting lever and inertia overshoot meets, fasten, smooth motion is little to the impact of reduction torsion spring on the one hand, the useful life that is conducive to improve reduction torsion spring, make closing magnet master part reset sooner, the rotating shaft that can effectively stop quick inertia overshoot to be returned simultaneously.Whole motion process action is level and smooth, and combined floodgate reliability is high.
Further, described reduction torsion spring adopts gapped winding method between each circle to make, and makes reduction torsion spring can, because of between circle and circle and the internal force of extruding generation after tight, not affect its useful life in loading process.
Further, between described closing magnet master part and bracing frame, be also connected with reset tension spring, utilize reset tension spring to increase the resilience force of closing magnet master part, improve combined floodgate reliability.
Further, on described bracing frame, install limited location screw and can turn advance and retreat to regulate the initial position of closing magnet master part, utilize stop screw to control the recoil position of closing magnet master part, avoid closing magnet master part due to the overaction resilience of reset tension spring and reduction torsion spring, the connecting lever and the closing magnet master part that after inertia overshoot, return misplace, and cause mismate and occur closing a floodgate unsuccessfully.
Further, on described bracing frame, device has manual switching-off device, manual switching-off device comprises separating brake push rod and push-rod frame, push-rod frame is fixed on bracing frame, separating brake push rod is assemblied on push-rod frame and thereby separating brake is realized in the promotion closing magnet master part upper end that can endwisely slip, try hard to recommend outside moving lower separating brake push rod and in push-rod frame, slides to push up and turn closing magnet master part, thereby untie the snapping of roller on closing magnet master part and connecting lever.
Compared with prior art, the utility model advantage is:
Closing keeping device described in the utility model changes closing magnet master part in closing keeping device in the past and the fit system of the connecting lever in rotating shaft, make closing magnet master part by guide vane end stop, remain in the arc outer rim of rotating shaft connecting lever and slide in making process, rather than the roller that old structure depends on rotating shaft connecting lever clashes into rear rotation, the connecting lever roller snapping returning after the closing magnet master part sliding from connecting lever outer rim while putting in place until finally close a floodgate and inertia overshoot, whole motion process action is level and smooth, thereby the rotating shaft trend of rotating towards separating brake direction after putting in place of closing a floodgate is more easily stopped by closing magnet master part, combined floodgate reliability is high, closing keeping device described in the utility model is simple in structure, is easy to manufacture, and production cost is low, is applicable to large-scale production.
Accompanying drawing explanation
Structural representation when Fig. 1 is the utility model separating brake;
Structural representation when Fig. 2 is the utility model combined floodgate.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The disclosed a kind of closing keeping device of the utility model embodiment, makes closing magnet master part by guide vane end stop, be remained in the arc outer rim of rotating shaft connecting lever and be slided in making process, and whole motion process action is level and smooth, improves combined floodgate reliability.
As depicted in figs. 1 and 2, a kind of closing keeping device, comprise bracing frame 2, closing magnet master part 3, connecting lever 11, pressing plate 5 and reduction torsion spring 4, bracing frame 2 devices are in the framework 1 of circuit breaker, closing magnet master part 3 devices are also free to rotate on bracing frame 2, and pressing plate 5 is fixed on bracing frame 2, and between closing magnet master part 3 and pressing plate 5, device has reduction torsion spring 4, reset tension spring 6 one end hang on closing magnet master part 3, and the other end hangs on bracing frame 2; Stop screw 7 is loaded on bracing frame 2 and can turn advances and retreat to regulate the initial position of closing magnet master part 3; Connecting lever 11 tops are set to arc outer rim, guide vane end stop 9 is equipped with in closing magnet master part 3 front end rivetings, closing magnet master part 3 remains in making process because reduction torsion spring 4 acts in the arc outer rim of connecting lever 11 and slides, the side at connecting lever 11 tops is provided with roller 10, connecting lever 11 rotates to closing magnet master part 3 after closing position and snaps onto on the roller 10 of connecting lever 11, realizes circuit breaker and remains on closing position.
Reduction torsion spring 4 is changed between circle and circle and is stayed gapped winding method by traditional density-winding, makes reduction torsion spring can, because of between circle and circle and push the internal force of generation after tight, not affect its useful life in loading process.
Because the whole motion process of closing magnet master part 3 is steady, 5 of pressing plates play a part reduction torsion spring 4 spacing, thereby can be made by common material, economy and durability, and simple in structure.And without the pressing plate as traditional, owing to also will limiting closing magnet master part after being hit in case moving spider is spent greatly, also to help closing magnet master part to reset simultaneously, thereby pressing plate will adopt the good material brass sheet of elasticity, the position that pressing plate is positioned at closing magnet master part upper end simultaneously also will process a pressure tongue with the motion of restriction closing magnet master part.
On bracing frame 2, device has manual switching-off device 8, manual switching-off device 8 comprises separating brake push rod and push-rod frame, push-rod frame is fixed on bracing frame, thereby separating brake push rod is assemblied on push-rod frame and can be endwisely slipped and be promoted closing magnet master part upper end by external force promotion, thereby unties the snapping of roller on closing magnet master part and connecting lever.
The operation principle of closing keeping device described in the utility model: when circuit breaker is in open position, closing magnet master part is pressed in the arc outer rim of connecting lever by the guide vane end stop on it, when circuit breaker receives after electronic or closing by hand instruction, under the driving of external force, rotating shaft is rotated towards combined floodgate direction, in this process, closing magnet master part slides in the arc outer rim of connecting lever by guide vane end stop, until the latter stage of closing a floodgate, combined floodgate merit discharges complete, rotating shaft is subject to the effect of inertia to continue under the effect of external force, to go back to after overshoot forward in the other direction, the closing magnet master part that roller on connecting lever is slided connecting lever arc outer rim props up, rotating shaft is prevented from towards the trend of separating brake direction action, make circuit breaker remain on closing position, when electronic or manually remove the buckle state of roller on closing magnet master part and connecting lever, rotating shaft is rotated towards separating brake direction under the ordering about of separating brake external force, and circuit breaker is finally got back to open position, thus complete one of circuit breaker complete close a minute process.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection range of the present utility model should be as the criterion with claim limited range.For those skilled in the art, within not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a closing keeping device, comprise bracing frame (2), closing magnet master part (3), connecting lever (11), pressing plate (5) and reduction torsion spring (4), it is characterized in that, described bracing frame (2) device is in the framework (1) of circuit breaker, closing magnet master part (3) device is upper and free to rotate at bracing frame (2), pressing plate (5) is fixed on bracing frame (2), between closing magnet master part (3) and pressing plate (5), device has reduction torsion spring (4), connecting lever (11) top is set to arc outer rim, guide vane end stop (9) is equipped with in closing magnet master part (3) front end riveting, closing magnet master part (3) remains in the arc outer rim of connecting lever (11) and slides because reduction torsion spring (4) acts in making process by guide vane end stop (9), the side at connecting lever (11) top is provided with roller (10), connecting lever (11) rotates to closing magnet master part (3) after closing position and snaps onto on the roller (10) of connecting lever (11), realize circuit breaker and remain on closing position.
2. closing keeping device according to claim 1, is characterized in that, described reduction torsion spring (4) adopts gapped winding method between each circle to make.
3. closing keeping device according to claim 1, is characterized in that, between described closing magnet master part (3) and bracing frame (2), is also connected with reset tension spring (6).
4. closing keeping device according to claim 1, is characterized in that, the upper device limited location screw (7) of described bracing frame (2) also can turn advances and retreat to regulate the initial position of closing magnet master part (3).
5. closing keeping device according to claim 1, it is characterized in that, the upper device of described bracing frame (2) has manual switching-off device (8), manual switching-off device (8) comprises separating brake push rod and push-rod frame, push-rod frame is fixed on bracing frame, thereby separating brake push rod is assemblied on push-rod frame and separating brake is realized in the promotion closing magnet master part upper end that can endwisely slip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204540.7U CN203850167U (en) | 2014-04-24 | 2014-04-24 | Closing retaining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204540.7U CN203850167U (en) | 2014-04-24 | 2014-04-24 | Closing retaining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850167U true CN203850167U (en) | 2014-09-24 |
Family
ID=51563152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420204540.7U Expired - Lifetime CN203850167U (en) | 2014-04-24 | 2014-04-24 | Closing retaining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151302A (en) * | 2020-09-29 | 2020-12-29 | 四川电器集团中电开关有限公司 | Sulfur hexafluoride circuit breaker control mechanism |
-
2014
- 2014-04-24 CN CN201420204540.7U patent/CN203850167U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151302A (en) * | 2020-09-29 | 2020-12-29 | 四川电器集团中电开关有限公司 | Sulfur hexafluoride circuit breaker control mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
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| CX01 | Expiry of patent term |