CN201588902U - Gas controlled damping support spring - Google Patents
Gas controlled damping support spring Download PDFInfo
- Publication number
- CN201588902U CN201588902U CN2009201033647U CN200920103364U CN201588902U CN 201588902 U CN201588902 U CN 201588902U CN 2009201033647 U CN2009201033647 U CN 2009201033647U CN 200920103364 U CN200920103364 U CN 200920103364U CN 201588902 U CN201588902 U CN 201588902U
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- CN
- China
- Prior art keywords
- cylinder barrel
- piston
- wall
- strut
- diversion trenches
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a gas controlled damping support spring. The support spring mainly comprises a cylinder barrel (1) with axial diversion trenches (13) arranged on the inner wall of the cylinder barrel (1), a piston (2) arranged inside the cylinder barrel (1), sealing rings (3) mounted on the piston (2), a supporting rod (4) with one end extending from the cylinder barrel (1) which is connected with the piston (2), and guide sleeves (5) and seal rings (6) which are connected with a rod cavity (12) on the cylinder barrel and are sleeved on the supporting rod (4), wherein at least two axial diversion trenches (13) are formed on the inner wall of the cylinder barrel (1) and are uniformly distributed in the circumference direction. The inner wall of the gas storage cylinder barrel axially extends in the utility model, and at least two diversion trenches are uniformly formed on the inner wall, thereby eliminating the defect of one-side friction increase of a support rod adopting single groove in the support process; and the spherical cross section of the diversion trenches facilitates the stead flow of nitrogen, thereby achieving stable extending speed of the support rod.
Description
Technical field
The utility model relates to a kind of strut air spring, especially relates to a kind of gas control damping supported spring.
Background technique
The strut air spring is used widely in all trades and professions at present, its basic structure and design principle are: mainly form air spring by the piston in cylinder barrel, the cylinder barrel and strut and guide sleeve etc., piston is provided with pod apertures (or guiding gutter), in cylinder barrel, charge into high pressure nitrogen, gas pressure intensity acts on the different side face of piston ring of sectional area, by the area difference of rod chamber and rodless cavity, form the thrust output of strut.The strut retraction is pressed in the cylinder barrel during work; After the external force disappearance that is carried on the strut, then gas restores and expands, and the gas of expansion promotes piston reset, strut is released, thereby made air spring realize compression movement and supporting movement.Avoid inertia impact gently for reaching damping, some air springs have been set up an axial diversion groove on the inwall of cylinder barrel at present, replace the guiding gutter on the piston, but this inwall list groove nitrogen flows to and impacts, very easily increase because of part fit tolerance factor causes strut monolateral frictional force to occur in the supporting movement process, strut stretches out the speed instability.
Summary of the invention
The purpose of this utility model provides and a kind ofly can make in the cylinder barrel nitrogen flow to stable, strut to stretch out speed stable gas control damping supported spring.
The technical solution of the utility model is: a kind of gas control damping supported spring, mainly comprise inwall be provided with the cylinder barrel of axial diversion groove, be arranged on piston in the cylinder barrel, be installed in seal ring on the piston, be connected with piston and an end pass cylinder barrel strut, be connected on the rod chamber cylinder barrel and be sleeved on guide sleeve and seal ring on the strut, axial diversion groove on the inner wall of cylinder is made as twice at least, and evenly distributes along circumference.
As a kind of improvement of the present utility model, the shape of cross section of axial diversion groove is spherical (R) groove.
Its working principle is: air spring is subjected to the external force effect, and strut is when compression process, and the nitrogen in the cylinder barrel flows to rod chamber from the guiding gutter of rodless cavity on cylinder barrel.When stretching springback process, the nitrogen in the air spring cylinder barrel must flow back to rodless cavity through the guiding gutter of processing on the cylinder barrel from rod chamber.The utility model extends axially the gas storage inner wall of cylinder to be evenly distributed to and has the twice guiding gutter less, eliminated and only opened the defective that strut that a single groove occurs increases in the monolateral frictional force of supporting movement process, favourable nitrogen flows to stable, makes strut stretch out velocity-stabilization.In addition, the shape of cross section of axial diversion groove is spherical (R) groove, can adopt broaching tool (ball-type steel ball) the harmomegathus mode of adjustable size to finish, and forms groove and gas storage cylinder barrel inner wall smooth and connects circle, and it is stable more to help the nitrogen flow direction, guarantees the air spring usability.
Description of drawings
Fig. 1 is the structural representation of the extended configuration of the utility model gas control damping supported spring.
Fig. 2 is the structural representation of the compressive state of air spring shown in Figure 1.
Fig. 3 is that the A-A of cylinder barrel shown in Figure 1 is to view.
Embodiment
As shown in Figure 1 and Figure 2, the utility model gas control damping supported spring, comprise cylinder barrel 1, piston 2, seal ring 3, strut 4, guide sleeve 5 and seal ring 6, one end of strut 4 is fixed on the piston 2, the other end of strut 4 passes cylinder barrel 1, piston 2 is arranged in the cylinder barrel 1 and can moves axially, cylinder barrel 1 inner chamber is divided into rod chamber 12 and rodless cavity 11, do not establish runner on the piston 2, seal ring 3 is installed on the piston 2, and guide sleeve 5 and seal ring 6 are fixedly connected in the cylinder barrel 1 and are sleeved on the strut 4.Cylinder barrel 1 inwall sets out twice axial diversion groove 13 at least, this axial diversion groove 13 evenly distributes along circumference, embodiment illustrated in fig. 1 is laterally zygomorphic twice, also can be as required, offer multiple tracks guiding gutter 13, as can be 120 ° three roads at interval, the groove depth of axial diversion groove 13 or groove width can change.As shown in Figure 3, the shape of cross section of axial diversion groove 13 is spherical (R) grooves, can adopt broaching tool (ball-type steel ball) the harmomegathus mode of adjustable size to finish, and forms groove and gas storage cylinder barrel inner wall smooth and connects circle, more helps nitrogen and flows to stable.
The utility model working procedure: air spring is subjected to the external force effect, and strut 4 is when being compressed process, and as shown in Figure 2, the nitrogen in the cylinder barrel flows to rod chamber 12 from the guiding gutter 13 of rodless cavity 11 on cylinder barrel.When stretching springback process, as shown in Figure 1, nitrogen flows back to rodless cavity 11 from rod chamber 12 through the guiding gutter 13 on the cylinder barrel.
Claims (2)
1. gas control damping supported spring, mainly comprise inwall be provided with the cylinder barrel of axial diversion groove (13) (1), be arranged on piston (2) in the cylinder barrel (1), be installed in seal ring (3) on the piston (2), be connected with piston (2) and an end pass cylinder barrel (1) strut (4), be connected on rod chamber (12) cylinder barrel and be sleeved on guide sleeve (5) and seal ring (6) on the strut (4), it is characterized in that: the axial diversion groove (13) on described cylinder barrel (1) inwall is made as twice at least, and evenly distributes along circumference.
2. gas control damping supported spring according to claim 1 is characterized in that: the shape of cross section of described axial diversion groove (13) is spherical (R) groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201033647U CN201588902U (en) | 2009-06-19 | 2009-06-19 | Gas controlled damping support spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201033647U CN201588902U (en) | 2009-06-19 | 2009-06-19 | Gas controlled damping support spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588902U true CN201588902U (en) | 2010-09-22 |
Family
ID=42748681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201033647U Expired - Fee Related CN201588902U (en) | 2009-06-19 | 2009-06-19 | Gas controlled damping support spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133621A (en) * | 2013-03-14 | 2013-06-05 | 昆山伟拓压铸机械有限公司 | Sprayer nitrogen spring cylinder |
| CN107165967A (en) * | 2016-03-08 | 2017-09-15 | 川湖科技股份有限公司 | Buffer unit |
| CN113565914A (en) * | 2021-09-18 | 2021-10-29 | 宁波市仁龙机械有限公司 | Damping type air spring |
-
2009
- 2009-06-19 CN CN2009201033647U patent/CN201588902U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133621A (en) * | 2013-03-14 | 2013-06-05 | 昆山伟拓压铸机械有限公司 | Sprayer nitrogen spring cylinder |
| CN103133621B (en) * | 2013-03-14 | 2015-05-13 | 昆山伟拓压铸机械有限公司 | Sprayer nitrogen spring cylinder |
| CN107165967A (en) * | 2016-03-08 | 2017-09-15 | 川湖科技股份有限公司 | Buffer unit |
| CN113565914A (en) * | 2021-09-18 | 2021-10-29 | 宁波市仁龙机械有限公司 | Damping type air spring |
| CN113565914B (en) * | 2021-09-18 | 2021-12-28 | 宁波市仁龙机械有限公司 | Damping type air spring |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20170619 |