CN202930262U - Switching on and off integrated type oil buffer - Google Patents
Switching on and off integrated type oil buffer Download PDFInfo
- Publication number
- CN202930262U CN202930262U CN 201220602069 CN201220602069U CN202930262U CN 202930262 U CN202930262 U CN 202930262U CN 201220602069 CN201220602069 CN 201220602069 CN 201220602069 U CN201220602069 U CN 201220602069U CN 202930262 U CN202930262 U CN 202930262U
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- piston
- oil storage
- cushion dashpot
- storage cylinder
- buffering
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to the power transmission power station buffer technical field and concretely provides a switching on and off integrated type oil buffer used by a spring operating mechanism in a high-voltage circuit-breaker. The switching on and off integrated type oil buffer comprises an oil storage cylinder, a buffering cylinder, a piston and a sealing end cover. The buffering cylinder is installed in the oil storage cylinder; the wall of the buffering cylinder is distributed with through holes in communication with the oil storage cylinder; the sealing end cover is arranged on an upper part of the oil storage cylinder and the buffering cylinder; the piston is arranged in the buffering cylinder and has an upper end extending out of the sealing end cover; a diameter of a through hole in the middle part of the buffering cylinder is larger than a diameter of a through hole at two end parts of the buffering cylinder. The switching on and off integrated type oil buffer possesses the characteristics of simple structure, good matching with buffering characteristics required by mechanisms and long service life.
Description
Technical field
The utility model relates to a kind of buffer technology field of power transmission and transformation station equipment, the divide-shut brake integrated form oil bumper that specifically primary cut-out medi-spring operating mechanism is used.
Background technology
Damping characteristics is one of key property affected spring operation mechanism for high-voltage breaker, buffer is the important component part of spring operating mechanism, buffering while being used for providing primary cut-out separating brake, closing operation, its reliability directly affects the quality of spring operating mechanism.The most of oil buffering is for dividing, close a floodgate the stand alone type buffering at present, the sort buffer device volume is large, easy oil leakage, easy care not, the oil buffering of the divide-shut brake integral type of minority, due to the deficiency in design, can not be regulated buffer speed according to mechanism action, reduced the reliability of buffering effect, in addition, mechanism's connecting lever directly drives the piston of buffer, easily causes mechanical clamping stagnation, waste operating work, affect the useful life of buffer.
Summary of the invention
The utility model provides a kind of simple in structure in order to overcome above-mentioned defect, better with the damping characteristics coupling that mechanism requires, the divide-shut brake integrated form oil bumper of long service life.
The technical solution adopted in the utility model is: a kind of divide-shut brake integrated form oil bumper, comprise oil storage cylinder, cushion dashpot, piston and end cover, cushion dashpot is arranged in oil storage cylinder, be distributed with the through hole communicated with oil storage cylinder on the wall of cushion dashpot, end cover is arranged on the top of oil storage cylinder and cushion dashpot, piston is arranged on cushion dashpot inside, and end cover is stretched out in its upper end, and the through-hole diameter that is positioned at the cushion dashpot middle part is greater than the through-hole diameter that is positioned at the cushion dashpot both ends
.
Be provided with the detent with the cushion dashpot coupling in the bottom of oil storage cylinder.
Described piston upper end is provided with the jointing of column, is provided with the connecting hole of long chute-like on jointing, and mechanism's connecting lever is articulated and connected in this connecting hole.
In the utility model, the sealing device between piston and end cover adopts axle to be sealed seal structure with this spy.
The utility model by opening the through hole varied in size on the buffering casing wall, the through-hole diameter that will be positioned at the cushion dashpot middle part is greater than the through-hole diameter that is positioned at the cushion dashpot both ends, when the separating brake of mechanism or feed motion have just started, logical oily cushion hole is more, buffer solution force feed flow velocity is larger, motion along with piston, logical oily cushion hole reduces gradually, buffer solution force feed flow velocity reduces gradually, the damping characteristics change is very easy to, the movement velocity of whole buffering course and mechanism is complementary, thereby the damping characteristics that obtains requiring with mechanism mates damping characteristics preferably, and this structure is without oil return delay, the utility model is provided with the detent with the cushion dashpot coupling in the bottom of oil storage cylinder, be beneficial to the installation location of cushion dashpot and oil storage cylinder, guarantees axiality, the mechanical clamping stagnation while eliminating piston movement, the utility model is provided with the jointing of belt length chute-like connecting hole between piston and mechanism's connecting lever, mechanism's connecting lever is hinged in connecting hole, when starting to move, mechanism's connecting lever first in connecting hole, slides, drive again jointing and piston action while moving to the end of connecting hole, guaranteed like this maximum utilization of mechanism operation merit, the break performance that is conducive to circuit breaker, the useful life of prolongation buffer.
The accompanying drawing explanation
Fig. 1 is combined floodgate buffering schematic diagram of the present utility model.
Fig. 2 is splitting lock cushioning schematic diagram of the present utility model.
Embodiment
Now by reference to the accompanying drawings the utility model is further described, the technical solution of the utility model is: comprise oil storage cylinder 1, cushion dashpot 2, piston 3 and end cover 4, cushion dashpot 2 is arranged in oil storage cylinder 1, be distributed with the through hole communicated with oil storage cylinder 1 on the wall of cushion dashpot 2, end cover 4 is arranged on the top of oil storage cylinder 1 and cushion dashpot 2, piston 3 is arranged on cushion dashpot 2 inside, piston 3 upper ends are that end cover 4 is stretched out in rear end, end cover 4 bottoms are provided with the positioning step with cushion dashpot 2 upper end couplings, in the present embodiment, the positioning step front end is annular boss, boss extend into the endoporus of cushion dashpot 2.The through-hole diameter that is positioned at cushion dashpot 2 middle parts is greater than the through-hole diameter that is positioned at cushion dashpot 2 both ends, it can be also the through hole maximum at middle part, the through-hole diameter on both sides reduces gradually, the spacing that can also be arranged to each through hole of middle part is little, and the spacing of two ends through hole is large, as long as meet the logical oil mass that the logical oil mass at cushion dashpot 2 middle parts is greater than two ends
.
In the present embodiment; also in the bottom of oil storage cylinder 1, be provided with the detent with cushion dashpot 2 couplings; during installation, cushion dashpot 2 falls in this detent; 2 need of cushion dashpot just can by end cover 4 compressions on top; be convenient to orientation assemble; guarantee the axiality of piston 3 and cushion dashpot 2 and oil storage cylinder 1 simultaneously, occur mechanism's catching phenomenon while preventing piston 3 motion.The utility model also is provided with the jointing 7 of column in piston 3 upper ends, be provided with the connecting hole of long chute-like on jointing 7, i.e. oblong connecting hole, and mechanism's connecting lever is articulated and connected in this connecting hole.In the present embodiment, the sealing device between piston 3 and end cover 4 adopts axle to be sealed seal structure with this spy.By this special envelope, filled polytetrafluoroethylene cascade ring and the rubber elastomer by a low friction forms axle, is a kind of piston 3 bars coaxial-type sealing ring.Have: anti-extrudability good; Burnish resistance is good; Dimensionally stable, not temperature influence; When starting without creeping phenomenon; There is excellent cushioning effect for the thump system.
The utility model is when closing a floodgate buffering, spring operating mechanism (being called for short mechanism) feed motion, its connecting lever is to lower swing, because the connecting hole of jointing 7 is through holes of long chute-like, so jointed shaft down sliding in connecting hole of mechanism's connecting lever while starting, when jointed shaft moves to the connecting hole bottom, the oil buffer unit is started working: jointing 7 moves downward piston 3 under connecting lever drives, now the logical oily through hole of cushion dashpot 2 and oil storage cylinder 1 is more, buffer solution force feed flow velocity is larger, along with piston 3 moves downward, logical oily through hole reduces gradually, buffer solution force feed flow velocity reduces gradually, piston 3 movement velocitys are slack-off gradually, the movement velocity of whole process and mechanism is closed a floodgate to cushion and is required characteristic to be complementary, when mechanism's combined floodgate puts in place, in-house fastener snapping, the connecting lever stop motion, also stop motion of damper piston 3, be that oily buffer unit is parked in the closing position shown in Fig. 1.
The utility model is when splitting lock cushioning, the connecting lever of mechanism upwards swings, because the connecting hole of jointing 7 is through holes of long chute-like, the jointed shaft of connecting lever starts to drive jointing 7 and moves upward while sliding into the connecting hole top, jointing 7 drives piston 3 and moves upward, now the logical oily through hole of cushion dashpot 2 and oil storage cylinder 1 is more, buffer solution force feed flow velocity is larger, along with piston 3 moves upward, logical oily through hole reduces gradually, buffer solution force feed flow velocity reduces gradually, piston 3 movement velocitys are slack-off gradually, the movement velocity splitting lock cushioning of whole process and mechanism requires characteristic to be complementary, after piston 3 moves and encounters end cover 4 end faces, mechanism's stop motion, the oil buffer unit is parked in the open position shown in Fig. 2.
The utlity model has simple in structure, the damping characteristics coupling required with mechanism better, the characteristics of long service life.
Claims (4)
1. a divide-shut brake integrated form oil bumper, comprise oil storage cylinder, cushion dashpot, piston and end cover, cushion dashpot is arranged in oil storage cylinder, be distributed with the through hole communicated with oil storage cylinder on the wall of cushion dashpot, end cover is arranged on the top of oil storage cylinder and cushion dashpot, piston is arranged on cushion dashpot inside, and end cover is stretched out in its upper end, it is characterized in that: the through-hole diameter that is positioned at the cushion dashpot middle part is greater than the through-hole diameter that is positioned at the cushion dashpot both ends
.
2. divide-shut brake integrated form oil bumper according to claim 1, is characterized in that: be provided with the detent with the cushion dashpot coupling in the bottom of oil storage cylinder.
3. divide-shut brake integrated form oil bumper according to claim 1, it is characterized in that: described piston upper end is provided with the jointing of column, is provided with the connecting hole of long chute-like on jointing, and mechanism's connecting lever is articulated and connected in this connecting hole.
4. according to the described divide-shut brake integrated form of any one in claims 1 to 3 oil bumper, it is characterized in that: the sealing device between piston and end cover adopts axle to be sealed seal structure with this spy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602069 CN202930262U (en) | 2012-11-15 | 2012-11-15 | Switching on and off integrated type oil buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602069 CN202930262U (en) | 2012-11-15 | 2012-11-15 | Switching on and off integrated type oil buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930262U true CN202930262U (en) | 2013-05-08 |
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ID=48220198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602069 Expired - Fee Related CN202930262U (en) | 2012-11-15 | 2012-11-15 | Switching on and off integrated type oil buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930262U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413720A (en) * | 2013-08-06 | 2013-11-27 | 库柏(宁波)电气有限公司 | High-voltage circuit breaker with buffer and balance weight integrated |
| CN104299810A (en) * | 2014-06-27 | 2015-01-21 | 国家电网公司 | Rack and spring operating mechanism using the same |
| CN104299862A (en) * | 2014-06-27 | 2015-01-21 | 国家电网公司 | Buffer and circuit breaker operating mechanism using the same |
| CN104319195A (en) * | 2014-06-27 | 2015-01-28 | 国家电网公司 | An oil damper and a breaker actuator using the oil damper |
| CN105513910A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Spring operating mechanism |
| CN110931280A (en) * | 2019-12-16 | 2020-03-27 | 西安交通大学 | Oil buffer structure for electromagnetic repulsion operating mechanism and working method |
| CN111390579A (en) * | 2020-06-08 | 2020-07-10 | 佛山市南海富大精密机械有限公司 | Vertical five-axis linkage machine tool |
| CN112267837A (en) * | 2020-09-08 | 2021-01-26 | 胡强 | Hard alloy percussion bit |
| CN112267836A (en) * | 2020-09-08 | 2021-01-26 | 胡强 | Novel hard alloy percussion bit |
-
2012
- 2012-11-15 CN CN 201220602069 patent/CN202930262U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413720B (en) * | 2013-08-06 | 2015-11-04 | 库柏(宁波)电气有限公司 | The primary cut-out that a kind of buffer is integrated with counterweight |
| CN103413720A (en) * | 2013-08-06 | 2013-11-27 | 库柏(宁波)电气有限公司 | High-voltage circuit breaker with buffer and balance weight integrated |
| CN104299810B (en) * | 2014-06-27 | 2017-01-18 | 国家电网公司 | Rack and spring operating mechanism using the same |
| CN104319195A (en) * | 2014-06-27 | 2015-01-28 | 国家电网公司 | An oil damper and a breaker actuator using the oil damper |
| CN104299862A (en) * | 2014-06-27 | 2015-01-21 | 国家电网公司 | Buffer and circuit breaker operating mechanism using the same |
| CN104299810A (en) * | 2014-06-27 | 2015-01-21 | 国家电网公司 | Rack and spring operating mechanism using the same |
| CN104319195B (en) * | 2014-06-27 | 2017-04-05 | 国家电网公司 | Oil bumper and the breaker operation mechanism using the oil bumper |
| CN104299862B (en) * | 2014-06-27 | 2017-06-27 | 国家电网公司 | Buffer and the breaker operation mechanism using the buffer |
| CN105513910A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Spring operating mechanism |
| CN105513910B (en) * | 2015-11-27 | 2017-10-20 | 平高集团有限公司 | A kind of spring operating mechanism |
| CN110931280A (en) * | 2019-12-16 | 2020-03-27 | 西安交通大学 | Oil buffer structure for electromagnetic repulsion operating mechanism and working method |
| CN111390579A (en) * | 2020-06-08 | 2020-07-10 | 佛山市南海富大精密机械有限公司 | Vertical five-axis linkage machine tool |
| CN112267837A (en) * | 2020-09-08 | 2021-01-26 | 胡强 | Hard alloy percussion bit |
| CN112267836A (en) * | 2020-09-08 | 2021-01-26 | 胡强 | Novel hard alloy percussion bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160531 Address after: 271000 Tai'an high tech Development Zone, Shandong Patentee after: SHANDONG TAIKAI ELECTRICAL APPLIANCE AGENCY CO., LTD. Address before: 271000 Tai'an high tech Development Zone, Shandong Patentee before: Shandong Taikai High-volt Switch Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20181115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |