CN208669928U - Hydro-pneumatic spring floating piston and hydro-pneumatic spring - Google Patents
Hydro-pneumatic spring floating piston and hydro-pneumatic spring Download PDFInfo
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- CN208669928U CN208669928U CN201821370783.2U CN201821370783U CN208669928U CN 208669928 U CN208669928 U CN 208669928U CN 201821370783 U CN201821370783 U CN 201821370783U CN 208669928 U CN208669928 U CN 208669928U
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- pneumatic spring
- seal ring
- oil
- ring recess
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Abstract
The utility model proposes a kind of hydro-pneumatic spring floating piston and hydro-pneumatic springs, belong to hydro-pneumatic spring technical field.This hydro-pneumatic spring floating piston includes piston only, piston only left end face is recessed inwardly to form groove, piston only side from left to right successively offers the guide groove of the guide groove of annular, the oil seal ring recess of annular, the two way seal ring recess of annular, the hermetic seal ring recess of annular and annular in parallel, guide ring is equipped in guide groove, oil seal circle is equipped in oil seal ring recess, two way seal ring recess is built-in to be furnished with two-way sealing ring, it is equipped with hermetic seal circle in hermetic seal ring recess, oil return duct is connected between two way seal ring recess and groove.The utility model has the beneficial effects that hydro-pneumatic spring is when continuing working state, when the operating pressure of oil pocket is excessive, when two-way sealing ring temporarily fails, the hydraulic oil of oil pocket can realize oil return through the drilling of two way seal ring recess, it prevents hydraulic oil from entering air cavity, guarantees the normal use of hydro-pneumatic spring.
Description
Technical field
The utility model relates to hydro-pneumatic spring technical fields, more particularly to a kind of hydro-pneumatic spring floating piston and oil gas
Spring.
Background technique
Hydro-pneumatic spring has excellent effectiveness in vibration suppression, at present its vibration damping for being widely used to heavy truck, engineering truck.
Floating piston on hydro-pneumatic spring is isolated by hydro-pneumatic spring oil pocket with air cavity, and oil pocket stores hydraulic oil, and air cavity stores nitrogen, oil pocket
Nitrogen in interior hydraulic oil compression air cavity, realizes the function of elastic original part.But the floating piston on hydro-pneumatic spring exists at present
In long-term use process, the hydraulic oil of oil pocket can be penetrated into gradually in air cavity, and the hydraulic oil of air cavity gradually emulsifies, and influence oil gas bullet
The service performance of spring.
Utility model content
The purpose of this utility model is to provide a kind of hydro-pneumatic spring floating piston and hydro-pneumatic springs, solve current oil gas
The technical issues of hydraulic oil of spring oil pocket in the long-term use can gradually penetrate into air cavity through floating piston.
The utility model provides a kind of hydro-pneumatic spring floating piston, and hydro-pneumatic spring floating piston includes piston only,
Piston only left end face is recessed inwardly to form groove, and piston only side from left to right successively offers the guiding of annular in parallel
Slot, the oil seal ring recess of annular, the two way seal ring recess of annular, annular hermetic seal ring recess and annular guide groove, guide groove
It is inside equipped with guide ring, oil seal circle is equipped in oil seal ring recess, two way seal ring recess is built-in equipped with two-way sealing ring, airtight
It is equipped with hermetic seal circle in seal slot, oil return duct is connected between two way seal ring recess and groove.
Further, two-way sealing ring trench bottom opens up drilling to groove direction to form oil return duct.
Further, the outer profile of the piston only is cylinder.
Further, space is cylinder in the groove.
Further, the piston only is made of metal material.
The utility model also provides a kind of hydro-pneumatic spring, including cylinder body, and the intracorporal side of cylinder is oil pocket, and cylinder is intracorporal another
Side is air cavity, is equipped with above-mentioned hydro-pneumatic spring floating piston in cylinder body, and piston only left end face is towards oil pocket.
Compared with prior art, the hydro-pneumatic spring of the utility model floating piston and hydro-pneumatic spring have the characteristics that and
Advantage:
The hydro-pneumatic spring floating piston arrangement of the utility model is simple, and cost is relatively low；The hydro-pneumatic spring of the utility model
It is applied to hydro-pneumatic spring with floating piston, hydro-pneumatic spring is two-way when the operating pressure of oil pocket is excessive when continuing working state
When sealing ring temporarily fails, the hydraulic oil of oil pocket can realize oil return through the drilling of two way seal ring recess, and hydraulic oil is prevented to enter gas
Chamber guarantees the normal use of hydro-pneumatic spring.
After specific embodiment of the present utility model is read in conjunction with the figure, it will become more the characteristics of the utility model with advantage
Add clear.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the structural schematic diagram of hydro-pneumatic spring floating piston ontology；
Fig. 2 is the structural schematic diagram of hydro-pneumatic spring floating piston；
Fig. 3 is the partial structural diagram figure of hydro-pneumatic spring；
Wherein, 1, piston only, 11, guide groove, 12, oil seal ring recess, 13, hermetic seal ring recess, 14, two-way sealing ring
Slot, 15, groove, 16, drilling, 21, guide ring, 22, oil seal circle, 23, airtight seal, 24, two-way sealing ring, 3, cylinder body, 31,
Oil pocket, 32, air cavity.
Specific embodiment
As shown in Figure 1 to Figure 2, the present embodiment provides a kind of hydro-pneumatic spring floating piston, piston only 1 is by metal material
Material is made, and 1 outer profile of piston only is cylinder.The left end face of piston only 1 is recessed inwardly to form groove 15.The present embodiment
Groove 15 in space be cylinder, convenient for the machine-shaping of groove 15.The side of piston only 1 from left to right successively offers
The guide groove 11 of annular, the oil seal ring recess 12 of annular, annular two way seal ring recess 14, annular hermetic seal ring recess 13 and ring
The guide groove 11 of shape, annular guide groove 11, the oil seal ring recess 12 of annular, the two way seal ring recess 14 of annular, annular gas
It is arranged in parallel between seal groove 13 and the guide groove 11 of annular.Guide ring 21, oil seal ring recess 12 are equipped in guide groove 11
It is inside equipped with oil seal circle 22, two-way sealing ring 24 is equipped in two way seal ring recess 14, is equipped with gas in hermetic seal ring recess 13
Sealing ring 23.Oil return duct is connected between two way seal ring recess 14 and groove 15.The oil return duct of the present embodiment is two-way close
14 bottom of seal slot opens up drilling 16 of the diameter for D to form oil return duct, so convenient for oil return duct to 15 direction of groove
Processing.
As shown in figure 3, the present embodiment also provides a kind of hydro-pneumatic spring, hydro-pneumatic spring includes cylinder body 3, the side in cylinder body 3
For oil pocket 31, the other side in cylinder body 3 is air cavity 32.The hydro-pneumatic spring floating piston of assembly the present embodiment, piston in cylinder body 3
1 left end face of ontology is towards oil pocket 31.
The hydro-pneumatic spring of the present embodiment, when continuing working state, piston only 1 is constantly in left and right vibrating state.Oil
Hydraulic oil in chamber 31 enters groove 15 and piston only 1 is pushed to compress the nitrogen in air cavity 32, realizes the function of elastic original part.Two
The guide ring 21 of side realizes operation guiding of the piston only 1 in cylinder body 3.Oil seal circle 22 is realized to 31 hydraulic oil of left side oil pocket
Sealing.The sealing to nitrogen in right side air cavity 32 is realized in airtight seal 23.It is in the hydraulic oil of oil pocket 31 and works normally pressure
When power, two-way sealing ring 24 realizes the sealing to hydraulic oil.When the excessive two-way sealing ring 24 of the hydraulic working oil pressure of oil pocket 31
Temporarily when failure, the hydraulic oil of oil pocket 31 to groove 15 and can continue to be back to oil through 16 oil return of drilling of two way seal ring recess 14
Chamber 31 prevents hydraulic oil from entering air cavity 32, guarantees the normal use of hydro-pneumatic spring.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, are also answered
Belong to the protection scope of the utility model.
Claims (6)
1. a kind of hydro-pneumatic spring floating piston, it is characterised in that: hydro-pneumatic spring floating piston includes piston only, piston sheet
Body left end face is recessed inwardly to form groove, and piston only side from left to right successively offers the guide groove of annular, ring in parallel
The oil seal ring recess of shape, the two way seal ring recess of annular, the hermetic seal ring recess of annular and the guide groove of annular, the interior assembly of guide groove
There is guide ring, oil seal circle is equipped in oil seal ring recess, two way seal ring recess is built-in to be furnished with two-way sealing ring, hermetic seal ring recess
It is inside equipped with hermetic seal circle, oil return duct is connected between two way seal ring recess and groove.
2. hydro-pneumatic spring floating piston according to claim 1, it is characterised in that: two-way sealing ring trench bottom is to groove
Direction opens up drilling to form oil return duct.
3. hydro-pneumatic spring floating piston according to claim 1, it is characterised in that: the outer profile of the piston only is
It is cylindrical.
4. hydro-pneumatic spring floating piston according to claim 1, it is characterised in that: space is cylinder in the groove
Shape.
5. hydro-pneumatic spring floating piston according to claim 1, it is characterised in that: the piston only is by metal material
It is made.
6. a kind of hydro-pneumatic spring, including cylinder body, the intracorporal side of cylinder is oil pocket, and the intracorporal other side of cylinder is air cavity, and feature exists
In: hydro-pneumatic spring floating piston described in any one of claim 1 to 5, piston only left end face court are equipped in cylinder body
To oil pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821370783.2U CN208669928U (en) | 2018-08-24 | 2018-08-24 | Hydro-pneumatic spring floating piston and hydro-pneumatic spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821370783.2U CN208669928U (en) | 2018-08-24 | 2018-08-24 | Hydro-pneumatic spring floating piston and hydro-pneumatic spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669928U true CN208669928U (en) | 2019-03-29 |
Family
ID=65839637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821370783.2U Active CN208669928U (en) | 2018-08-24 | 2018-08-24 | Hydro-pneumatic spring floating piston and hydro-pneumatic spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208669928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454357A (en) * | 2019-09-18 | 2019-11-15 | 张家港瑞景动力科技有限公司 | A kind of low-temperature end piston of cryogenic pump |
-
2018
- 2018-08-24 CN CN201821370783.2U patent/CN208669928U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454357A (en) * | 2019-09-18 | 2019-11-15 | 张家港瑞景动力科技有限公司 | A kind of low-temperature end piston of cryogenic pump |
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