CN101858398B - Self-propelled return oil buffer - Google Patents
Self-propelled return oil buffer Download PDFInfo
- Publication number
- CN101858398B CN101858398B CN2010101991978A CN201010199197A CN101858398B CN 101858398 B CN101858398 B CN 101858398B CN 2010101991978 A CN2010101991978 A CN 2010101991978A CN 201010199197 A CN201010199197 A CN 201010199197A CN 101858398 B CN101858398 B CN 101858398B
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- CN
- China
- Prior art keywords
- cylinder
- stifled
- cushion dashpot
- damper piston
- cylinder sleeve
- 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 - Fee Related
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- 239000003921 oil Substances 0.000 claims abstract description 34
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 27
- 230000003139 buffering effect Effects 0.000 claims abstract description 24
- 239000000428 dust Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a self-propelled return oil buffer, which belongs to the technical field of power transmission and transformation, provides buffering for the on and off of a spring control mechanism of a high-voltage breaker, and comprises a buffering cylinder, a cylinder liner, a buffering piston, a cylinder plug and the like, wherein the cylinder liner is positioned in the buffering cylinder; the lower end of the buffering piston is positioned in the cylinder liner; the cylinder plug seals the buffering piston and the cylinder liner in the buffering cylinder; and a small amount of hydraulic oil is filled in the buffering cylinder. The self-propelled return oil buffer of the invention is simple in structure, small in oil consumption and quick in oil return.
Description
Technical field
The invention belongs to the power transmission and transformation technical field, particularly a kind of divide-shut brake to high-voltage breaker spring operating mechanism provides a kind of self-propelled return oil buffer of buffering.
Technical background
Buffer is the high-voltage breaker spring operating mechanism pith, the buffering when primary cut-out separating brake, closing operation are provided, and present buffer major part is the buffer of nature oil return, the structure more complicated, the technological requirement height, its oil return speed is slower, and the hydraulic oil of usefulness is many.So because the blanking time of the slow buffering once more of oil return speed is long, damping characteristics is instability when quick repeatable operation, operations such as the high-speed reclosure of inapplicable primary cut-out.
Summary of the invention
The purpose of this invention is to provide a kind of self-propelled return oil buffer, to solve traditional buffer structure complexity, the technological requirement height uses the speed of Chuck Steak and oil return to wait technical problem slowly.
A kind of self-propelled return oil buffer of the present invention, it comprises that cushion dashpot, cylinder sleeve, damper piston and cylinder are stifled; Cylinder sleeve is set in the cushion dashpot, and the cylinder sleeve lower end surface contacts with the cushion dashpot inner bottom surface, and the lower end of damper piston places cylinder sleeve, and the damper piston upper end partly is connected with mechanism driving, and the stroke of damper piston is in cylinder sleeve; The stifled lower end of cylinder outer wall ring-type table top contacts with cylinder sleeve upper end anchor ring, the stifled outer wall of cylinder is provided with three road grooves, seal ring is installed in the groove, the position of lower end groove is in sealing cylinder sleeve upper end inwall and the stifled outer wall place, lower end of cylinder, the position of upper end twice groove is in sealing cushion dashpot inwall and the stifled outer wall place of cylinder, the stifled outer wall of cylinder upper end is provided with screw thread, fixedlys connected with cushion dashpot upper end screw thread; Cylinder stifled with cushion dashpot on be connected after, cylinder sleeve is locked in the cushion dashpot, the damper piston lower end places in the cylinder sleeve; The stifled inwall of cylinder also is provided with groove, install successively from top to bottom prevent dust enter the dust ring of cushion dashpot from the outside, make damper piston be positioned the stifled axle center of cylinder first guide ring, prevent that inner hydraulic oil from squeezing out the seal ring of cylinder body and making damper piston be positioned second guide ring that cylinder blocks up the axle center from the gap of buffering piston with the stifled inwall of cylinder; A spot of hydraulic oil will be charged in the cushion dashpot.
Above-mentioned a kind of self-propelled return oil buffer, minute, in the making process, be cushioned a small amount of low-pressure hydraulic oil that piston is expressed to cylinder sleeve and cushion dashpot gap, flow back in the described cushion dashpot by the aperture on the described cylinder bore wall, be extruded to a small amount of low-pressure hydraulic oil in the stifled gap of described damper piston and described cylinder, flow back in the cushion dashpot by aperture on the described cylinder bulkhead and the aperture on the described cylinder bore wall.
As long as above-mentioned a kind of self-propelled return oil buffer charges into a small amount of hydraulic oil in when buffering in the cushion dashpot, absorb that energy is enough to get final product
The present invention has simple in structure, and is few with oil, and advantage such as oil return speed is fast, and also having the working position is any spatiality, and therefore the restriction that not influenced by oil level, is convenient to install and use under various damped condition situations.
Description of drawings
Fig. 1 is self-propelled return oil buffer generalized section in the example of the present invention;
Fig. 2 for self-propelled return oil buffer splitting lock cushioning in the example of the present invention after schematic representation;
Fig. 3 cushions the back schematic representation for self-propelled return oil buffer in the example of the present invention closes a floodgate;
Embodiment
Concrete structure of the present invention and working principle are referring to accompanying drawing.
Referring to Fig. 1, wherein, 1, damper piston, 2, cylinder is stifled, 3, cushion dashpot, 4, cylinder sleeve, 5, hydraulic oil, 6, dust ring, 7, guide ring, 8, seal ring, 9, seal ring, 10, seal ring, 11, hole a, 12, hole b.Self-propelled return oil buffer of the present invention, spring operating mechanism is fixed in cushion dashpot 3 lower ends, transmission crank arm is fixed in damper piston 1 upper end, driving damper piston 1 when the spring operating mechanism divide-shut brake moves moves up and down in cushion dashpot, as shown in Figure 1, cylinder sleeve 4 is set in the cushion dashpot 3, cylinder sleeve 4 lower ends contact with cushion dashpot 3 inner bottom surfaces, the lower end of damper piston 1 places cylinder sleeve 4, the upper end partly is connected with mechanism driving, damper piston 1 can move up and down in cylinder sleeve 4, the stifled 2 lower end outer wall ring-type table tops of cylinder contact with cylinder sleeve 4 upper end anchor rings, the outer wall of cylinder stifled 2 is provided with three road grooves, seal ring is installed in the groove, the lower end groove is equipped with the gap of seal ring 9 sealing cylinder sleeve 4 upper end inwalls and the stifled 2 lower end outer walls of cylinder, upper end twice groove is installed the gap of seal ring 10 sealing cushion dashpot 3 inwalls and stifled 2 outer walls of cylinder, stifled 2 outer walls of cylinder upper end is provided with screw thread, fixedly connected with cushion dashpot 3 upper end screw threads, with cushion dashpot 3, cylinder sleeve 3 and cylinder block up 2 fixing and lockings, the inner ring surface of cylinder stifled 2 also is provided with groove, dust ring 6 is installed from top to bottom successively, guide ring 7, seal ring 8 and guide ring 7, dust ring 6 prevents that dust from entering cushion dashpot 3 from the outside, the central shaft that two guide rings 7 make damper piston 1 be positioned cylinder stifled 2 moves up and down, seal ring 8 prevents that inner hydraulic oil is squeezed out cushion dashpot 3 from the gap of buffering piston 1 and stifled 2 inwalls of cylinder, cylinder stifled 2 is sealed in damper piston 1 and cylinder sleeve 4 in the cushion dashpot 3, will charge into a spot of hydraulic oil 5 in the cushion dashpot 3.Will not be full of by cushion dashpot,, absorb that energy is enough to get final product as long as in when buffering.
Self-propelled return oil buffer has two states: schematic representation behind the self-propelled return oil buffer splitting lock cushioning as shown in Figure 2, Fig. 3 self-propelled return oil buffer buffering back schematic representation that closes a floodgate, buffer is changed between two states all the time.
Working method when self-propelled return oil buffer of the present invention:
Splitting lock cushioning: when the operation mechanism separating brake moves, operation mechanism conducts power in damper piston 1 by transmission crank arm, this moment, the self-retreating return oil buffer was in the state of Fig. 3, move downward after damper piston 1 is stressed, push the hydraulic oil 5 of damper piston 1 lower end to cushion dashpot 3 bottoms, when damper piston 1 base plane when contacting fully above the hydraulic oil 5, the hydraulic oil 5 beginning buffering course that is squeezed, the power of damper piston 1 is pushed upside to cushion dashpot 3 with hydraulic oil 5 from the gap of buffering piston 1 outer wall and cylinder sleeve 4 inwalls, both upper ring surfaces of damper piston 1 bottom, contacting the splitting lock cushioning process up to damper piston 1 bottom surface fully with cushion dashpot 3 bottom surfaces finishes, the a small amount of low-pressure hydraulic oil 5 that is extruded in the splitting lock cushioning process in cushion dashpot 3 inwalls and the cylinder sleeve 4 outer wall gaps flow back into 3 li of cushion dashpots by the aperture b12 on cylinder sleeve 4 walls, be expressed to damper piston 1 and flow back into 3 li of cushion dashpots by aperture a11 on stifled 2 walls of cylinder and the aperture b12 on cylinder sleeve 4 walls with a small amount of low-pressure hydraulic oil 5 that cylinder blocks up 2 gaps, hydraulic bjuffer oil return process is finished, the state behind self-retreating return oil buffer state-transition Fig. 2 splitting lock cushioning.
Close a floodgate and cushion: when the operation mechanism feed motion, operation mechanism conducts power in damper piston 1 by transmission crank arm, this moment, the self-retreating return oil buffer was in the state of Fig. 2, move upward after damper piston 1 is stressed, push the hydraulic oil 5 of damper piston 1 bottom upper ring surface to cushion dashpot 3 tops and stifled 2 bottom surfaces of cylinder, when contacting fully with stifled 2 bottom surfaces of cylinder above the hydraulic oil 5 of damper piston 1 bottom upper ring surface, the hydraulic oil 5 beginning buffering course that is squeezed, the power of damper piston 1 is pushed bottom to cushion dashpot 3 with hydraulic oil 5 from the gap of buffering piston 1 bottom outer wall and cylinder sleeve 4 inwalls, both damper piston 1 below, contacting the combined floodgate buffering course fully up to stifled 2 bottom surfaces of damper piston 1 bottom upper ring surface and cylinder finishes, while is flow back in the cushion dashpot 3 by the aperture b12 on cylinder sleeve 4 walls by a small amount of low-pressure hydraulic oil 5 that making process is expressed to cylinder sleeve 4 and cushion dashpot 3 gaps, be expressed to damper piston 1 and flow back into 3 li of cushion dashpots by aperture a11 on stifled 2 walls of cylinder and the aperture b12 on cylinder sleeve 4 walls with a small amount of low-pressure hydraulic oil 5 that cylinder blocks up 2 gaps, hydraulic bjuffer oil return process is finished, self-retreating return oil buffer state-transition Fig. 3 close a floodgate the buffering after state.
Claims (3)
1. a self-propelled return oil buffer is characterized in that, it comprises that cushion dashpot, cylinder sleeve, damper piston and cylinder are stifled; Cylinder sleeve is set in the cushion dashpot, and the cylinder sleeve lower end surface contacts with the cushion dashpot inner bottom surface, and the lower end of damper piston places cylinder sleeve, and the damper piston upper end partly is connected with mechanism driving, and the stroke of damper piston is in cylinder sleeve; The stifled lower end of cylinder outer wall ring-type table top contacts with cylinder sleeve upper end anchor ring, the stifled outer wall of cylinder is provided with three road grooves, seal ring is installed in the groove, the position of lower end groove is in sealing cylinder sleeve upper end inwall and the stifled outer wall place, lower end of cylinder, the position of upper end twice groove is in sealing cushion dashpot inwall and the stifled outer wall place of cylinder, the stifled outer wall of cylinder upper end is provided with screw thread, fixedlys connected with cushion dashpot upper end screw thread; Cylinder stifled with cushion dashpot on be connected after, cylinder sleeve is locked in the cushion dashpot, the damper piston lower end places in the cylinder sleeve; The stifled inwall of cylinder also is provided with groove, install successively from top to bottom prevent dust enter the dust ring of cushion dashpot from the outside, make damper piston be positioned the stifled axle center of cylinder first guide ring, prevent that inner hydraulic oil from squeezing out the seal ring of cylinder body and making damper piston be positioned second guide ring that cylinder blocks up the axle center from the gap of buffering piston with the stifled inwall of cylinder; A spot of hydraulic oil will be charged in the cushion dashpot.
2. according to the described a kind of self-propelled return oil buffer of claim 1, it is characterized in that, minute, in the making process, be cushioned a small amount of low-pressure hydraulic oil that piston is expressed to cylinder sleeve and cushion dashpot gap, flow back in the described cushion dashpot by the aperture on the described cylinder bore wall, be extruded to a small amount of low-pressure hydraulic oil in the stifled gap of described damper piston and described cylinder, flow back in the cushion dashpot by aperture on the described cylinder bulkhead and the aperture on the described cylinder bore wall.
3. according to the described a kind of self-propelled return oil buffer of claim 1, it is characterized in that charging in the cushion dashpot a small amount of hydraulic oil for as long as when the buffering, absorb that energy is enough to get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101991978A CN101858398B (en) | 2010-06-12 | 2010-06-12 | Self-propelled return oil buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101991978A CN101858398B (en) | 2010-06-12 | 2010-06-12 | Self-propelled return oil buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858398A CN101858398A (en) | 2010-10-13 |
| CN101858398B true CN101858398B (en) | 2011-11-09 |
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ID=42944488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101991978A Expired - Fee Related CN101858398B (en) | 2010-06-12 | 2010-06-12 | Self-propelled return oil buffer |
Country Status (1)
| Country | Link |
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| CN (1) | CN101858398B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243931B (en) * | 2018-09-30 | 2020-02-07 | 湖南长高电气有限公司 | Circuit breaker spring operating mechanism characteristic adjusting device and high-voltage alternating-current circuit breaker |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1540514A1 (en) * | 1965-08-19 | 1970-01-02 | Sachsenwerk Licht & Kraft Ag | Fluid damping pump for electrical switchgear |
| KR20020053719A (en) * | 2000-12-27 | 2002-07-05 | 다가야 레이지 | Cylinder device |
| CN2703162Y (en) * | 2004-05-20 | 2005-06-01 | 董喜刚 | Stretching air spring |
| CN101725658A (en) * | 2008-10-31 | 2010-06-09 | 贺勍 | Dead load, dynamic pulse and stretching speed self-adaptive resistance variation method and damper |
| CN201731013U (en) * | 2010-06-12 | 2011-02-02 | 杨秀丽 | Self-propelled oil return buffer |
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2010
- 2010-06-12 CN CN2010101991978A patent/CN101858398B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101858398A (en) | 2010-10-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20101013 Assignee: Liaoning Kasiting Electromechanical Equipment Co. Ltd. Assignor: Yang Xiuli Contract record no.: 2012990000641 Denomination of invention: Self-propelled return oil buffer Granted publication date: 20111109 License type: Exclusive License Record date: 20120831 |
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| ASS | Succession or assignment of patent right |
Owner name: LIAONING KASITING ELECTROMECHANICAL EQUIPMENT CO., Free format text: FORMER OWNER: YANG XIULI Effective date: 20140504 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 100028 DONGCHENG, BEIJING TO: 123000 FUXIN, LIAONING PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140504 Address after: 123000, No. 64, development avenue, Fuxin Economic Development Zone, Liaoning Patentee after: Liaoning Kasiting Electromechanical Equipment Co. Ltd. Address before: 100028 Beijing city Dongcheng District Xianghe Road No. 7 room 1604 No. 10000 Patentee before: Yang Xiuli |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20160612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |