CN203926215U - A kind of oil hydraulic cylinder - Google Patents
A kind of oil hydraulic cylinder Download PDFInfo
- Publication number
- CN203926215U CN203926215U CN201420332270.8U CN201420332270U CN203926215U CN 203926215 U CN203926215 U CN 203926215U CN 201420332270 U CN201420332270 U CN 201420332270U CN 203926215 U CN203926215 U CN 203926215U
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- CN
- China
- Prior art keywords
- groove
- guide sleeve
- shoulder block
- cylinder body
- oil hydraulic
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of oil hydraulic cylinder, comprise cylinder body, axial direction along cylinder body offers cavity, in described cavity, plunger is installed, on described plunger, guide sleeve is installed, on described guide sleeve, offers groove, described groove is with outstanding shoulder block, " Y " RunddichtringO is installed in groove, and one end contact of described groove is on shoulder block; On the inner cylindrical surface of guide sleeve, be outwards nested with sand prevention ring, in end face one side of guide sleeve, seal ring be installed; On described cylinder body, also by bolt, end cap is installed, one end contact of described end cap is on the end face of seal ring; One side of described end cap is nested with sand prevention ring.The utility model, by have additional shoulder block on groove, above liquid stream is flowed through groove time, on shoulder block, improves its sealing effect by one end contact of " Y " RunddichtringO.
Description
Technical field
the utility model relates to oil hydraulic cylinder technical field, relates in particular to a kind of oil hydraulic cylinder of good sealing effect.
Background technique
oil hydraulic cylinder by hydraulic energy change mechanical energy into, the do straight reciprocating motion hydraulic actuator of (or oscillating motion).Its simple in structure, reliable operation.While realizing to-and-fro motion with it, can remove speed reducer from, and there is no drive gap, motion steadily, is therefore used widely in the hydraulic system of various machineries.The pressure reduction on oil hydraulic cylinder ouput force and piston effective area and both sides thereof is directly proportional; Oil hydraulic cylinder is made up of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance substantially.
requirement for working medium in hydraulic system is very high, and the piston assembly of current oil hydraulic cylinder, in long-term working procedure, easily produces wearing and tearing, causes its sealing effect to reduce, thereby causes leakage, when serious, also can make oil hydraulic cylinder scrap.
Model utility content
the purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of oil hydraulic cylinder is provided, and has improved the sealing effect of oil hydraulic cylinder from structure.
the utility model is to be achieved through the following technical solutions:
a kind of oil hydraulic cylinder, comprise cylinder body, axial direction along cylinder body offers cavity, in described cavity, plunger is installed, on described plunger, guide sleeve is installed, on described guide sleeve, offers groove, described groove is with outstanding shoulder block, " Y " RunddichtringO is installed in groove, and one end contact of described groove is on shoulder block.
as optimal technical scheme of the present utility model, on the inner cylindrical surface of guide sleeve, be outwards nested with sand prevention ring, by setting up sand prevention ring, hard fine sand is stopped up in cylinder body.End face one side at guide sleeve is provided with seal ring; On described cylinder body, also by bolt, end cap is installed, one end contact of described end cap is on the end face of seal ring; One side of described end cap is nested with sand prevention ring.
compared with prior art, the beneficial effects of the utility model are: the utility model, by have additional shoulder block on groove, above liquid stream is flowed through groove time, on shoulder block, improves its sealing effect by one end contact of " Y " RunddichtringO.
Brief description of the drawings
fig. 1 is structural representation of the present utility model.
in figure: 1-cylinder body; 2-cavity; 3-plunger; 4-guide sleeve; 5-groove; 6-sand prevention ring; 7-seal ring; 8-bolt; 9-end cap; 10-" Y " RunddichtringO; 11-shoulder block.
Embodiment
in order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
described a kind of oil hydraulic cylinder, comprise cylinder body 1, offer cavity 2 along the axial direction of cylinder body 1, in described cavity 2, plunger 3 is installed, on described plunger 3, guide sleeve 4 is installed, on described guide sleeve 4, offers groove 5, described groove 5 is with outstanding shoulder block 11, " Y " RunddichtringO 10 is installed in groove 5, and one end contact of described groove 5 is on shoulder block 11.
on the inner cylindrical surface of guide sleeve 4, be outwards nested with sand prevention ring 6, by setting up sand prevention ring, hard fine sand stopped up in cylinder body.End face one side at guide sleeve 4 is provided with seal ring 7; Preferably, described seal ring 7 is " V " type combined seal ring.On described cylinder body 1, also by bolt 8, end cap 9 is installed, one end contact of described end cap 9 is on the end face of seal ring 7; One side of described end cap 9 is nested with sand prevention ring 6.
the utility model, by have additional shoulder block on groove, above liquid stream is flowed through groove time, on shoulder block, improves its sealing effect by one end contact of " Y " RunddichtringO.
the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. an oil hydraulic cylinder, comprise cylinder body (1), offer cavity (2) along the axial direction of cylinder body (1), plunger (3) is installed in described cavity (2), guide sleeve (4) is installed on described plunger (3), it is characterized in that: on described guide sleeve (4), offer groove (5), described groove (5) is with outstanding shoulder block (11), " Y " RunddichtringO (10) is installed in groove (5), and one end contact of described groove (5) is on shoulder block (11).
2. a kind of oil hydraulic cylinder according to claim 1, is characterized in that: on the inner cylindrical surface of guide sleeve (4), be outwards nested with sand prevention ring (6), in end face one side of guide sleeve (4), seal ring (7) be installed; On described cylinder body (1), also by bolt (8), end cap (9) is installed, one end contact of described end cap (9) is on the end face of seal ring (7); One side of described end cap (9) is nested with sand prevention ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420332270.8U CN203926215U (en) | 2014-06-21 | 2014-06-21 | A kind of oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420332270.8U CN203926215U (en) | 2014-06-21 | 2014-06-21 | A kind of oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926215U true CN203926215U (en) | 2014-11-05 |
Family
ID=51822032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420332270.8U Expired - Fee Related CN203926215U (en) | 2014-06-21 | 2014-06-21 | A kind of oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926215U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221522A (en) * | 2015-10-28 | 2016-01-06 | 无锡阳工机械制造有限公司 | Oil cylinder cover magnetic force anti-loose structure |
| CN105221516A (en) * | 2015-10-28 | 2016-01-06 | 无锡阳工机械制造有限公司 | A kind of anti-loosing type oil cylinder cover structure |
| CN105221523A (en) * | 2015-10-28 | 2016-01-06 | 无锡阳工机械制造有限公司 | A kind of with returning hook oil cylinder cover anti-loose structure |
-
2014
- 2014-06-21 CN CN201420332270.8U patent/CN203926215U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221522A (en) * | 2015-10-28 | 2016-01-06 | 无锡阳工机械制造有限公司 | Oil cylinder cover magnetic force anti-loose structure |
| CN105221516A (en) * | 2015-10-28 | 2016-01-06 | 无锡阳工机械制造有限公司 | A kind of anti-loosing type oil cylinder cover structure |
| CN105221523A (en) * | 2015-10-28 | 2016-01-06 | 无锡阳工机械制造有限公司 | A kind of with returning hook oil cylinder cover anti-loose structure |
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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: 20141105 Termination date: 20160621 |