CN201443576U - Novel hydraulic buffer - Google Patents
Novel hydraulic buffer Download PDFInfo
- Publication number
- CN201443576U CN201443576U CN2009200311128U CN200920031112U CN201443576U CN 201443576 U CN201443576 U CN 201443576U CN 2009200311128 U CN2009200311128 U CN 2009200311128U CN 200920031112 U CN200920031112 U CN 200920031112U CN 201443576 U CN201443576 U CN 201443576U
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- piston
- novel hydraulic
- hydraulic buffer
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- liquid
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Abstract
The utility model discloses a novel hydraulic buffer. The novel hydraulic buffer comprises a housing, a piston arranged in the housing, an annular slide block connected and fixed on the piston, a spring arranged at the lower part of the piston and a mounting and fixing part arranged at the bottom of the housing, wherein the piston is hollow, through holes which are led to the external surface and communicated with the middle part are formed at the upper end and the lower end of the piston, and liquid with volume no less than one quarter of the internal volume of the housing is stored in the housing. The novel hydraulic buffer has reasonable structure and better buffering effect, and is not only simple and fast for processing, but also practical and durable.
Description
Technical field
The utility model relates to a kind of buffer, and especially the GIS product scope is used for a kind of novel hydraulic buffer of circuit breaker.
Background technique
In power industry, GIS is meant the sulphur hexafluoride gas insulated metal enclosed swit chgear.Be called " gas-insulated switchgear " in the world and be called for short GIS, it is with the primary equipment except that transformer in the electric substation, comprise circuit breaker, isolating switch, earthed switch, voltage transformer, current transformer, lightning arrester, bus, cable termination, turnover thread casing etc., organically be combined into an integral body through optimal design.
Buffer in the circuit breaker plays functions such as separating brake is spacing, speed limit, and the mechanical property of circuit breaker is played crucial effects.Along with updating of technology, find that also there are a large amount of defectives in itself.Now the buffer of prior art is made brief description on structure, performance.
Fig. 1 illustrates the half sectional view of existing buffer structure.It comprises shell 1, be arranged on piston 3 in the shell 1, connect and be fixed on the ring slider 2 on the piston, the mounting fixing parts 5 that is arranged on the spring 4 of piston 3 bottoms and is arranged on outer casing bottom; Also comprise a valve block that is used to seal 6.
The piston 3 of this buffer is solid, and it mainly acts on is exactly to move downward extrusion spring 4.This structure that directly cushions with spring can't be regulated the size of ouput force, can not satisfy the requirement of buffering in the actual use.
Simultaneously, this buffer mainly is by spring 4 bufferings.Because the spring dispersiveness is too big, too hard again.When the impulse force of separating brake transmitted downwards fast, moment will be pressed onto piston 3 bottom of shell 1, even also can rebound.Therefore, the sort buffer device exists the defective of essence, does not reach the real purpose of splitting lock cushioning at all.
Therefore, need a kind of new buffer problem unreasonable and that using effect is not good to be set with the existing buffer structure of better solution.
Summary of the invention
In view of this, the utility model is devoted to better to solve existing buffer structure problem unreasonable and that using effect is not good is set, and has proposed a kind of novel hydraulic buffer.
The purpose of this utility model provides a kind of buffer that adopts hydraulic pressure and spring and usefulness.Particularly, the utility model solves this technical problem the technological scheme that is adopted and is:
A kind of novel hydraulic buffer, the mounting fixing parts that comprises shell, the piston that in shell, is provided with, connects and be fixed on ring slider on the piston, the spring that is provided with in the piston bottom, is provided with at outer casing bottom; Wherein, described piston be hollow and descend two ends to have to lead to outer surface thereon and be communicated with in the middle part of through hole; And, in described shell, store the liquid that is no less than shell internal volume 1/4.
Have the through hole that connects upper and lower surface on the above-mentioned ring slider.
Number of openings on the above-mentioned ring slider is no less than one, and/or the above-mentioned piston number of openings at two ends up and down all is no less than one.
4/5 of the no more than shell internal volume of the amount of liquid that stores in the above-mentioned shell.
The liquid that stores in the above-mentioned shell is transformer oil.
The beneficial effects of the utility model are: the utility model is rational in infrastructure, has cushioning effect preferably; Simple and fast not only in the processing, and practical durable.
Description of drawings
Below with reference to accompanying drawings specific embodiments of the present utility model is described in detail, wherein:
Fig. 1 is the half sectional view of existing buffer structure; And
Fig. 2 is the half sectional view of the utility model structure.
Embodiment
In order to solve existing buffer structure problem unreasonable and that using effect is not good is set, the utility model provides a kind of novel hydraulic buffer.Next specify this novel hydraulic buffer.
Fig. 2 illustrates the half sectional view of the utility model structure.As shown in Figure 2, this device comprise shell 1, the piston 3 that in shell, is provided with, the mounting fixing parts 5 that connects and be fixed on the ring slider 2 on the piston, the spring 4 that is provided with in the piston bottom, be provided with at outer casing bottom.
Above-mentioned piston 3 also descends two ends to have thereon for hollow and leads to the through hole 7 and 8 that outer surface also is communicated with the middle part; And, in described shell 1, store the liquid that is no less than shell internal volume 1/4.Piston 3 adopts hollow liquid infusing type, all configurating filtered up and down fluid through-hole 7 and 8.When piston 3 moved downward fast, the liquid of bottom was squeezed, and can enter by the filtrate through hole 8 of bottom, came out by last filtered fluid through hole, had carried out slow pressure effectively.Therefore, the quantity or the size of filtered fluid through hole be can change, thereby the size of hydraulic bjuffer ouput force, the scientific and effective purpose that plays buffering changed.
Have the through hole 9 that connects upper and lower surface on the above-mentioned ring slider 2, more than one of the approach the when buffering of liquid is flowed under the situation that is subjected to greater impact power, can cushion fast.
Number of openings on the above-mentioned ring slider 2 is no less than one.
The number of openings at above-mentioned piston two ends about in the of 3 all is no less than one.
The mounting fixing parts 5 that above-mentioned outer casing bottom is provided with is a threaded screw rod, conveniently hydraulic bjuffer connected and to fix.
4/5 of the no more than shell internal volume of the amount of liquid that stores in the above-mentioned shell when amount of liquid very little the time, does not have the effect of buffering, but amount of liquid is excessive, resetting after also influence buffering and the buffering, simultaneously, because the relation of expanded by heating has higher requirement of strength to housing is installed.
Above-mentionedly also comprise one near piston slider and in its lower section valve block 6 is set, have and be used for auxiliary slider and seal and cut apart the effect of top and the bottom liquid.
The liquid that stores in the above-mentioned shell 1 is transformer oil.Transformer oil is more common in electric power system, and has other incomparable liquid or irreplaceable wear resistance of oil plant and thermal conductivity.
Next the working procedure of above-mentioned hydraulic bjuffer is described:
When breaker open operation, circuit breaker is given 3 one impacts of piston, and piston moves downward fast, and the liquid of bottom is squeezed, and enters the piston hollow space by bottom filtrate through hole 8, flows out from top filtrate through hole 7 then.Middle filtrate through hole can be regulated the filtration yield of liquid according to the size of piston motion amount, so the resistance of piston liquid body and spring reaches cushioning effect.
When breaker closing, disappear for the impact force of piston 3, piston 3 is moved upward by the thrust of spring 4, and the liquid on top slowly reaches balanced by the filtrate through hole, thus buffer resets.Therefore quantity or the size that can regulate the filtrate through hole change the size of hydraulic bjuffer ouput force.Steadily balanced with fluid cushion, can effectively realize buffering.
More than specific descriptions of the present utility model are intended to illustrate the implementation of specific embodiments can not be interpreted as it is to restriction of the present utility model.Those of ordinary skills can make various variants on the basis of the embodiment that describes in detail under instruction of the present utility model, these variants all should be included within the design of the present utility model.The utility model scope required for protection is only limited by described claims.
Claims (8)
1. novel hydraulic buffer, the mounting fixing parts that comprises shell, the piston that in shell, is provided with, connects and be fixed on the ring slider on the piston, the spring that is provided with in the piston bottom, is provided with at outer casing bottom; It is characterized in that:
Described piston be hollow and descend two ends to have to lead to outer surface thereon and be communicated with in the middle part of through hole; And, in described shell, store the liquid that is no less than shell internal volume 1/4.
2. novel hydraulic buffer as claimed in claim 1 is characterized in that:
Have the through hole that connects upper and lower surface on the described ring slider.
3. novel hydraulic buffer as claimed in claim 2 is characterized in that:
Number of openings on the described ring slider is no less than one.
4. as each described novel hydraulic buffer of claim 1 to 3, it is characterized in that:
The described piston number of openings at two ends up and down all is no less than one.
5. novel hydraulic buffer as claimed in claim 4 is characterized in that:
The mounting fixing parts of described outer casing bottom setting is a threaded screw rod.
6. novel hydraulic buffer as claimed in claim 5 is characterized in that:
4/5 of the no more than shell internal volume of the amount of liquid that stores in the described shell.
7. as each described novel hydraulic buffer of claim 1 to 3, it is characterized in that:
Also comprise one near piston slider and setting valve block in its lower section.
8. as claim 1 or 2 or 3 or 5 or 6 described novel hydraulic buffers, it is characterized in that:
The liquid that stores in the described shell is transformer oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200311128U CN201443576U (en) | 2009-08-04 | 2009-08-04 | Novel hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200311128U CN201443576U (en) | 2009-08-04 | 2009-08-04 | Novel hydraulic buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443576U true CN201443576U (en) | 2010-04-28 |
Family
ID=42548253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200311128U Expired - Fee Related CN201443576U (en) | 2009-08-04 | 2009-08-04 | Novel hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047446A (en) * | 2015-06-29 | 2015-11-11 | 平高集团有限公司 | Hydraulic buffer and breaker operating mechanism using same |
| CN114542647A (en) * | 2020-11-27 | 2022-05-27 | 比亚迪股份有限公司 | Valve train assembly for shock absorber and shock absorber with same |
-
2009
- 2009-08-04 CN CN2009200311128U patent/CN201443576U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047446A (en) * | 2015-06-29 | 2015-11-11 | 平高集团有限公司 | Hydraulic buffer and breaker operating mechanism using same |
| CN105047446B (en) * | 2015-06-29 | 2017-12-22 | 平高集团有限公司 | Hydraulic bjuffer and the breaker operation mechanism using the hydraulic bjuffer |
| CN114542647A (en) * | 2020-11-27 | 2022-05-27 | 比亚迪股份有限公司 | Valve train assembly for shock absorber and shock absorber with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20140804 |
|
| EXPY | Termination of patent right or utility model |