CN2563346Y - Single function multiple piston multiple hydraulic cylinder - Google Patents
Single function multiple piston multiple hydraulic cylinder Download PDFInfo
- Publication number
- CN2563346Y CN2563346Y CN 02222296 CN02222296U CN2563346Y CN 2563346 Y CN2563346 Y CN 2563346Y CN 02222296 CN02222296 CN 02222296 CN 02222296 U CN02222296 U CN 02222296U CN 2563346 Y CN2563346 Y CN 2563346Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder barrel
- ring
- guide sleeve
- external diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a single function multiple piston multiple hydraulic cylinder solves the problem of the prior products of a complicated structure, bad stability, high possibility of scuffing of cylinder bore and short service life. The utility model is characterized in that: one end of a cylinder barrel is welded with a cylinder head which is provided with an oil opening; one end between the outside diameter of a cylinder rod and the inside diameter of the cylinder barrel is provided with a support ring; a support ring is arranged on the other end between a guide sleeve and the cylinder rod; one end between the outside diameter of the cylinder barrel and the inside diameter of the cylinder barrel is provided with a support ring; a support ring is arranged on the other end between the inside diameter of the guide sleeve and the outside diameter of the cylinder barrel; one end between the middle outside diameter of the cylinder barrel and the inside diameter of the cylinder barrel is provided with a support ring; a support ring is arranged on the other end between the inside diameter of the guide sleeve and the outside diameter of the cylinder barrel; the utility model can be widely applicable to hydraulic engendering equipments.
Description
The utility model relate to a kind of on oilhydraulic engineering equipment widely used single-acting piston type multistage hydraulic cylinder.
Present widely used single-acting plunger type multistage hydraulic cylinder structurally adopts screw thread or flange to be connected cylinder head and cylinder barrel, ends tightly with O shape sealing Cock screw, causes complex structure; On cylinder barrel, weld hydraulic fluid port; By place, piston rod outer end the little supporting ring of supporting point distance is being housed between piston rod external diameter and the inner wall of cylinder and between cylinder barrel external diameter and the adjacent internal diameter of cylinder, hydraulic cylinder works poor stability like this, easily cause between piston rod external diameter and inner wall of cylinder and cylinder barrel external diameter and the adjacent inner wall of cylinder scuffing of cylinder bore takes place, make its operating life short.
The purpose of this utility model is to provide a kind of simple in structure for overcoming above-mentioned deficiency of the prior art, the single-acting piston type multistage hydraulic cylinder that stable work in work and life-span are long.
The purpose of this utility model can reach by following measure: the utility model includes a piston rod, be fastened with an earrings in this piston rod outer end, with a end between the internal diameter of cylinder that it matches steel wire ring washer, seal ring and O-ring seals are installed at this piston rod external diameter, the other end is equipped with a guide sleeve, between this guide sleeve internal diameter and piston rod external diameter a dust ring is installed; With a end between the internal diameter of cylinder that it matches steel wire ring washer, seal ring and O-ring seals are installed at from inside to outside cylinder barrel external diameter, the other end is equipped with a guide sleeve, between the cylinder barrel external diameter that this guide sleeve internal diameter matches with it dust ring is installed; With a end between the internal diameter of cylinder that it matches seal ring and O-ring seals are being installed at the cylinder barrel external diameter of centre, the other end is equipped with a guide sleeve, between the cylinder barrel external diameter that this guide sleeve internal diameter matches with it dust ring is installed; It is characterized in that cylinder barrel one end welding cylinder head outside, and on this cylinder head, be manufactured with a hydraulic fluid port; End between the internal diameter of cylinder that the piston rod external diameter is mated is equipped with a supporting ring near the seal ring place; Between the guide sleeve internal diameter of the other end and the piston rod external diameter supporting ring is installed; Near the seal ring place one supporting ring is installed with a end between the internal diameter of cylinder that it matches at from inside to outside cylinder barrel external diameter, between the cylinder barrel external diameter that the guide sleeve internal diameter of the other end matches with it supporting ring is installed; Near the seal ring place one supporting ring being installed with a end between the internal diameter of cylinder that it matches, between the cylinder barrel external diameter that the guide sleeve internal diameter of the other end matches with it supporting ring is installed at the cylinder barrel external diameter of centre.
Accompanying drawing is the utility model structural principle complete section schematic representation.
The utility model is described in further detail below in conjunction with (accompanying drawing) embodiment: as shown in the figure, 21 is piston rod, be fastened with an earrings 20 in these piston rod 21 outer ends, end between cylinder barrel 24 internal diameters that this piston rod 21 directly matches with it is equipped with Steel Cable Baffle Ring 25, seal ring 7 and O-ring seals 10, the other end is equipped with a guide sleeve 11, between these guide sleeve 11 internal diameters and piston rod 21 external diameters a dust ring 19 is installed; End between cylinder barrel 23 internal diameters that cylinder barrel 24 external diameters from inside to outside are mated is equipped with Steel Cable Baffle Ring 26, seal ring 6 and O-ring seals 9, the other end is equipped with a guide sleeve 12, between cylinder barrel 24 external diameters that these guide sleeve 12 internal diameters match with it dust ring 18 is installed; End between cylinder barrel 22 internal diameters that cylinder barrel 23 external diameters in the centre match with it is equipped with seal ring 5 and O-ring seals 8, the other end is equipped with a guide sleeve 13, between cylinder barrel 23 external diameters that these guide sleeve 13 internal diameters match with it dust ring 17 is installed; Cylinder barrel 22 1 ends welding cylinder head 1 outside, and on this cylinder head 1, be manufactured with a hydraulic fluid port 27; End between cylinder barrel 24 internal diameters that piston rod 21 external diameters match with it is equipped with a supporting ring 2 near outside the seal ring 7, between guide sleeve 11 internal diameters of the other end and piston rod 21 external diameters supporting ring 16 is installed; End between cylinder barrel 23 internal diameters that cylinder barrel 24 external diameters from inside to outside match with it is equipped with a supporting ring 3 near seal ring 6 places, between cylinder barrel 24 external diameters that guide sleeve 12 internal diameters of the other end match with it supporting ring 15 is installed; End between cylinder barrel 22 internal diameters that cylinder barrel 23 external diameters in the centre are mated is equipped with a supporting ring 4 near seal ring 5 places, between cylinder barrel 23 external diameters that guide sleeve 13 internal diameters of the other end match with it supporting ring 14 is installed.The designed single-acting piston type multistage hydraulic cylinder that provides of the utility model so just has been provided.The utility model working principle is as follows: pressure oil promotes piston rod 21 work done that moves outward in hydraulic fluid port 27 input cylinder barrels 24, realize the work purpose, after the pressure oil release, piston rod 21 is withdrawn under external force, and pressure oil refluxes from hydraulic fluid port 27, so move in circles, reach the engineering design requirement.
The utility model has following advantage compared to existing technology:
1, because cylinder head and cylinder barrel are welded, thus simple in structure and easy for installation;
2, because between the internal diameter of cylinder and guide sleeve internal diameter that the piston rod external diameter is mated, all be separately installed with supporting ring between cylinder barrel external diameter and the internal diameter of cylinder that it matches and at the guide sleeve internal diameter that the cylinder barrel external diameter matches with it, thereby the stable work in work of piston and cylinder barrel, be difficult for producing scuffing of cylinder bore, long service life.
Claims (1)
- A kind of single action piston multistage hydraulic cylinder includes a piston rod, be fastened with an earrings in this piston rod outer end, with a end between the internal diameter of cylinder that it matches steel wire ring washer, seal ring and O-ring seals are installed at this piston rod external diameter, the other end is equipped with a guide sleeve, between this guide sleeve internal diameter and piston rod external diameter a dust ring is installed; With a end between the internal diameter of cylinder that it matches steel wire ring washer, seal ring and O-ring seals are installed at from inside to outside cylinder barrel external diameter, the other end is equipped with a guide sleeve, between the cylinder barrel external diameter that this guide sleeve internal diameter matches with it dust ring is installed; With a end between the internal diameter of cylinder that it matches seal ring and O-ring seals are being installed at the cylinder barrel external diameter of centre, the other end is equipped with a guide sleeve, between the cylinder barrel external diameter that this guide sleeve internal diameter matches with it dust ring is installed; It is characterized in that cylinder barrel one end welding cylinder head outside, and on this cylinder head, be manufactured with a hydraulic fluid port; End between the internal diameter of cylinder that the piston rod external diameter is mated is equipped with a supporting ring near the seal ring place; Between the guide sleeve internal diameter of the other end and the piston rod external diameter supporting ring is installed; Near the seal ring place one supporting ring is installed with a end between the internal diameter of cylinder that it matches at from inside to outside cylinder barrel external diameter, between the cylinder barrel external diameter that the guide sleeve internal diameter of the other end matches with it supporting ring is installed; Near the seal ring place one supporting ring is being installed with a end between the internal diameter of cylinder that it matches at the cylinder barrel external diameter of centre, is adding between the cylinder barrel external diameter that the guide sleeve internal diameter of an end matches with it supporting ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222296 CN2563346Y (en) | 2002-04-19 | 2002-04-19 | Single function multiple piston multiple hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222296 CN2563346Y (en) | 2002-04-19 | 2002-04-19 | Single function multiple piston multiple hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2563346Y true CN2563346Y (en) | 2003-07-30 |
Family
ID=33700241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02222296 Expired - Fee Related CN2563346Y (en) | 2002-04-19 | 2002-04-19 | Single function multiple piston multiple hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2563346Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566180A (en) * | 2008-04-23 | 2009-10-28 | 北京纽希液压技术研究所 | Multilevel hydraulic cylinder |
| CN101949398A (en) * | 2010-09-13 | 2011-01-19 | 三一重工股份有限公司 | Single-action hydraulic oil cylinder and paver with same |
| CN102374209A (en) * | 2011-11-08 | 2012-03-14 | 山西森尔科技有限公司 | Rigid telescopic oil tube with oil supply and oil discharge functions |
| CN102996570A (en) * | 2012-11-28 | 2013-03-27 | 三一重工股份有限公司 | Single-action double-graded hydraulic cylinder and engineering machine |
| CN104455798A (en) * | 2014-12-01 | 2015-03-25 | 盐城苏工高科机械有限公司 | Multistage expansion pressure oil pipe |
-
2002
- 2002-04-19 CN CN 02222296 patent/CN2563346Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566180A (en) * | 2008-04-23 | 2009-10-28 | 北京纽希液压技术研究所 | Multilevel hydraulic cylinder |
| CN101949398A (en) * | 2010-09-13 | 2011-01-19 | 三一重工股份有限公司 | Single-action hydraulic oil cylinder and paver with same |
| CN102374209A (en) * | 2011-11-08 | 2012-03-14 | 山西森尔科技有限公司 | Rigid telescopic oil tube with oil supply and oil discharge functions |
| CN102374209B (en) * | 2011-11-08 | 2013-11-13 | 山西森尔科技有限公司 | Rigid telescopic oil tube with oil supply and oil discharge functions |
| CN102996570A (en) * | 2012-11-28 | 2013-03-27 | 三一重工股份有限公司 | Single-action double-graded hydraulic cylinder and engineering machine |
| CN102996570B (en) * | 2012-11-28 | 2015-04-22 | 三一重工股份有限公司 | Single-action double-graded hydraulic cylinder and engineering machine |
| CN104455798A (en) * | 2014-12-01 | 2015-03-25 | 盐城苏工高科机械有限公司 | Multistage expansion pressure oil pipe |
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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 |