CN2490350Y - Long-service-life-type hydro-cylinder, air cylinder - Google Patents
Long-service-life-type hydro-cylinder, air cylinder Download PDFInfo
- Publication number
- CN2490350Y CN2490350Y CN 01240553 CN01240553U CN2490350Y CN 2490350 Y CN2490350 Y CN 2490350Y CN 01240553 CN01240553 CN 01240553 CN 01240553 U CN01240553 U CN 01240553U CN 2490350 Y CN2490350 Y CN 2490350Y
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- cylinder
- piston
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- week
- end cover
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A long-service-life-type hydro-cylinder air cylinder mainly comprises a cylinder barrel, two sides of the cylinder barrel are provided with a front end cover and a rear end cover, and a piston and a piston rod are arranged inside the cylinder barrel, wherein the front end cover consists of a single end cover body and a composite material sleeve which is embedded on the circumference of the inner side of the front end cover; the piston consists of a piston body and a composite material sleeve which is embedded on the outer margin of the piston; the circumference of the inner side of the front end cover touches the outer wall of the piston rod, and the circumference of the outer margin of the piston touches the inner wall of the cylinder barrel. The long-service-life-type hydro-cylinder air cylinder solves such problems that the contact surface of the relative motion component produces wear and pulling damage, and even causes seizure and scrap of the product, etc.
Description
The utility model belongs to the dynamic power machine technical field, i.e. a kind of oil cylinder of long-life type, cylinder.
Oil cylinder and cylinder are hydraulic pressure, pneumatic apparatus commonly used in industry, agricultural, mining industry, building industry, transportation, national defence and the scientific experiment.Its basic structure is that, parts main zero by cylinder barrel, front cover, rear end cover, piston, piston rod etc. constitute, because function needs, under the effect of hydraulic pressure or air pressure, piston is reciprocating in cylinder barrel, thereby drive piston rod and do flexible to-and-fro motion, in the acting process, the parts in the cylinder barrel will bear lateral force, this has just caused between piston rod and the front cover guiding position, and the friction between piston outer rim and the inner wall of cylinder and cause wearing and tearing.In order to reduce this wearing and tearing, the way of each producer's employing is to manufacture in the inner wall of cylinder coating or with front cover, piston to help copper product etc. at present, promptly be that such movement parts surface of contact when doing relative motion also can produce wearing and tearing, pull, even cause the stuck problem such as scrap of product.For oil cylinder or large-scale cylinder: the end cap of cylinder barrel is to constitute (in order to reduce cost and also will to reduce wear, top cover is that the steel end socket is a copper) by the top cover of cylinder barrel and end socket, has increased amount of finish like this, has also strengthened cost.
The purpose of this utility model provides a kind of long-life type oil cylinder, cylinder, and it makes it to have overcome deficiency of the prior art by the improvement to front cover, piston structure.
This purpose realizes with following technical proposal: this long-life type oil cylinder, cylinder, it mainly has forward and backward end cap by cylinder barrel, cylinder barrel two ends, be made up of piston and piston rod in the cylinder barrel, wherein said front cover is to be made of with the composite material lining of inlaying in one week of side within it a single end cap main body; Described piston is to be made of piston main body and the composite material lining of being inlayed on one week in its outer rim, and wherein an inboard week of front cover contacts with the piston rod outer wall, and one week of piston outer rim contacts with inner wall of cylinder.Plastic layer is arranged is the composite material lining of matrix with the metal being inlaid with 1 or two outer surfaces in one week of piston outer rim.Being inlaid with an internal surface one week of inboard of end cap is that plastic layer is the composite material lining of matrix with the metal.
The utility model makes oil cylinder or cylinder eliminate the metallic dust that between the metal mill is produced because the parts of relative movement have been done structural improvement on the one hand, and product is had the following advantages: wear resistance is good, and frictional force is little; Damping is little, and is quiet, the coefficient of kinetic friction is close, the power of reducing friction 3-10 doubly, energy saving; Also can eliminate oil cylinder or cylinder " creeping ", improve the quality of products.On the other hand because the change of end cover structure has reduced processing charges; Piston and end cap fully can be with copper take place of steel, thereby the cost that has yet reduced oil cylinder, large-scale cylinder does not widely need more resleeve under the good condition of the cleanliness with dustproof effectively reliably, sealing and fluid, and can reach 10 the normal working life of oil cylinder
6～10
7Inferior, if timely resleeve more, oil cylinder can use for a long time.For cylinder, equally also can obtain very long working life.
Following accompanying drawing has provided embodiment of the present utility model:
Fig. 1 is the overall structure cut-away section view shown in the embodiment 1.
Fig. 2 is the overall structure cut-away section view shown in the embodiment 2.
In conjunction with the accompanying drawings unitary construction of the present utility model being done one describes in detail:
As shown in Figure 1: this long-life type oil cylinder, cylinder are mainly had front cover respectively, also rear end cover (omitting among the rear end cover figure) are arranged by cylinder barrel, cylinder barrel two ends, are made up of piston and piston rod in the cylinder barrel.Front cover is to reach a composite material lining 1 of inlaying in one week of side within it by a single end cap main body 2 to constitute; Piston is to be made of piston main body 4 and two composite material linings 5 inlaying in one week of its outer rim.An inboard week of front cover contacts with piston rod 3 outer walls and is added with seal ring.One week of piston outer rim contacts with cylinder barrel 6 inwalls and is added with seal ring.Here the lining that uses of front cover is to adopt internal surface to manufacture as the composite material of matrix as plastic layer and with metal; The lining that piston uses is to adopt outer surface to manufacture (this composite material is to adopt metallurgy sintered technology to make) as plastic layer and with metal as the composite material of matrix.Oil cylinder shown in oil cylinder shown in Figure 2, cylinder and Fig. 1 or cylinder are basic identical, and just piston is to be made of the lining 5 that piston main body 4 and its outer rim are inlayed.
Improved oil cylinder, cylinder change contact of the metal surface between original oil cylinder, the cylinder moving spare and relative movement between metal surface and the plastics contact and relative movement.Thereby contact of no metal surface and motion mutually between oil cylinder, the cylinder moving spare have been realized, the key of Here it is oil cylinder, cylinder longevity.This technology is applied to hydraulic actuator, shock strut of hydraulic prop, aircraft etc. too.
Claims (3)
1, a kind of long-life type oil cylinder, cylinder, it mainly has forward and backward end cap by cylinder barrel, cylinder barrel two ends, form by piston and piston rod in the cylinder barrel, it is characterized in that described front cover is to be made of with the composite material lining of inlaying in one week of side a single end cap main body within it; Described piston is to be made of piston main body and the composite material lining of being inlayed on one week in its outer rim, and wherein an inboard week of front cover contacts with the piston rod outer wall, and one week of piston outer rim contacts with inner wall of cylinder.
2, long-life type oil cylinder according to claim 1, cylinder is characterized in that plastic layer is arranged is the composite material lining of matrix with the metal being inlaid with 1 or two outer surfaces in one week of piston outer rim.
3, long-life type oil cylinder according to claim 1, cylinder is characterized in that being inlaid with an internal surface one week of inboard of end cap be that plastic layer is the composite material lining of matrix with the metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240553 CN2490350Y (en) | 2001-06-28 | 2001-06-28 | Long-service-life-type hydro-cylinder, air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240553 CN2490350Y (en) | 2001-06-28 | 2001-06-28 | Long-service-life-type hydro-cylinder, air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490350Y true CN2490350Y (en) | 2002-05-08 |
Family
ID=33652757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01240553 Expired - Fee Related CN2490350Y (en) | 2001-06-28 | 2001-06-28 | Long-service-life-type hydro-cylinder, air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490350Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235497A (en) * | 2010-04-30 | 2011-11-09 | 深圳富泰宏精密工业有限公司 | Air cylinder and punching machine using same |
| CN114508519A (en) * | 2022-03-04 | 2022-05-17 | 烟台星辉航空液压有限公司 | Locking oil cylinder with composite bushing and capable of holding pole in interference manner at any position |
-
2001
- 2001-06-28 CN CN 01240553 patent/CN2490350Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235497A (en) * | 2010-04-30 | 2011-11-09 | 深圳富泰宏精密工业有限公司 | Air cylinder and punching machine using same |
| CN102235497B (en) * | 2010-04-30 | 2014-12-31 | 深圳富泰宏精密工业有限公司 | Air cylinder and punching machine using same |
| CN114508519A (en) * | 2022-03-04 | 2022-05-17 | 烟台星辉航空液压有限公司 | Locking oil cylinder with composite bushing and capable of holding pole in interference manner at any position |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |