CN201884360U - Single-acting two-stage hydraulic cylinder - Google Patents
Single-acting two-stage hydraulic cylinder Download PDFInfo
- Publication number
- CN201884360U CN201884360U CN201020683833XU CN201020683833U CN201884360U CN 201884360 U CN201884360 U CN 201884360U CN 201020683833X U CN201020683833X U CN 201020683833XU CN 201020683833 U CN201020683833 U CN 201020683833U CN 201884360 U CN201884360 U CN 201884360U
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- cylinder body
- guide sleeve
- piston rod
- acting
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Abstract
The utility model discloses a single-acting two-stage hydraulic cylinder which comprises a cylinder body, wherein an oil port is arranged on the cylinder body, in which a piston is installed; the piston is installed at one end of a first-stage piston rod by a nut; the first-stage piston rod is sheathed in a second-stage piston rod; the matching surface between the second-stage piston rod and the cylinder body is provided with a sealing ring; one end of the cylinder body is connected with a second-stage guide sleeve by threads; the cylinder body is provided with a cylinder body exhaust pin; and the first-stage guide sleeve is provided with a guide sleeve exhaust pin. A support ring and a dust ring are installed between the first-stage guide sleeve and the first-stage piston rod which is matched with the first-stage guide sleeve. For the single-acting two-stage hydraulic cylinder, the oil port and connecting pipelines are cancelled to install an exhaust pin at the rod cavity, thus meeting the requirements of the working environment with compact structure and narrow space.
Description
Technical field
The utility model relates to a kind of single-acting two-stage hydraulic cylinder that uses in the hydraulic construction machine that is applicable to.
Background technique
At present, single-action hydraulic cylinder generally all is with the existing double-acting hydraulic cylinder transformation of the way.Pressure oil liquid enters rodless cavity, at the oil port of rod chamber, connects the container that no pressure oil liquid is housed with oil pipe, in the container volume of fluid be greater than piston rod when stretching out full rod chamber fill the volume of fluid, when fluid filling rod chamber, can realize single-acting.This structure can not satisfy for compact, the narrow and small operating mode in space.
Summary of the invention
It is narrow and small that the purpose of this utility model provides a kind of space that is applicable to, compact structure is restricted to stroke, mounting distance size, can satisfy the two-stage hydraulic cylinder of single effect.
The purpose of this utility model is achieved in that a kind of single-acting two-stage hydraulic cylinder, it comprises cylinder body, have hydraulic fluid port on the cylinder body, be provided with piston in the cylinder body, piston is installed in first stage piston bar one end by nut, the first stage piston bar is sleeved in the second piston rod, between the fitting surface of second piston rod and cylinder body seal ring is installed; Cylinder body one end is installed cylinder body exhaust pin by the secondary guide sleeve that is threaded on the cylinder body, guide sleeve exhaust pin is housed on the one-level guide sleeve.Between the first stage piston bar that the one-level guide sleeve matches with it support ring and dust ring are installed.
The single-acting two-stage hydraulic cylinder that the utility model provides, air is connected with first stage piston bar, second piston rod rod chamber by the exhaust pin, discharges the dust in gas and the energy filtered air.Piston rod withdrawal action is the outer piston rod that promotes, and the two-stage piston rod is withdrawn successively, and gas is by the dust air inlet in the exhaust pin filtered air.The utility model is installed the exhaust pin at the pipeline that is positioned at rod chamber place cancellation hydraulic fluid port and is connected, and satisfies compact structure, the narrow and small working environment in space.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, cylinder body, 2, second piston rod; 3, piston; 4, first stage piston bar; 5, exhaust pin; 6, secondary guide sleeve; 7, one-level guide sleeve; 8, support ring; 9, exhaust pin; 10, dust ring; 11, hydraulic fluid port; 12, nut; 13, seal ring.
Embodiment
As shown in Figure 1, the utility model adopts following structure: comprise cylinder body 1, have hydraulic fluid port 11 on the cylinder body 1, be provided with piston 3 in the cylinder body 1, piston 3 is installed in first stage piston bar 4 one ends by nut 12, first stage piston bar 4 is sleeved in the second piston rod 2, and seal ring 13 is installed between the fitting surface of second piston rod 2 and cylinder body 1; Cylinder body 1 one ends are installed cylinder body exhaust pin 5 by the secondary guide sleeve 6 that is threaded on the cylinder body 1, guide sleeve exhaust pin 9 is housed on the one-level guide sleeve 7.Support ring 8 and dust ring 10 are installed between the first stage piston bar 4 that one-level guide sleeve 7 matches with it.
Working principle of the present utility model is as follows: pressure oil enters from hydraulic fluid port 11, and fluid is full of rodless cavity, and promotion first stage piston bar 4, second piston rod 4 motions are stretched out; Air is connected with the rod chamber of first stage piston bar 4, second piston rod 2 by cylinder body exhaust pin 5, guide sleeve exhaust pin 9, discharges the dust in gas and the energy filtered air.The withdrawal action of first stage piston bar 4, second piston rod 2 is the outer piston rods that promote, and the two-stage piston rod is withdrawn successively.
Claims (2)
1. single-acting two-stage hydraulic cylinder, it comprises cylinder body (1), have hydraulic fluid port (11) on the cylinder body (1), it is characterized in that: be provided with piston (3) in the cylinder body (1), piston (3) is installed in first stage piston bar (4) one ends by nut (12), first stage piston bar (4) is sleeved in the second piston rod (2), between the fitting surface of second piston rod (2) and cylinder body (1) seal ring (13) is installed; Cylinder body (1) one end is by the secondary guide sleeve (6) that is threaded, and cylinder body (1) is gone up cylinder body exhaust pin (5) is installed, and guide sleeve exhaust pin (9) is housed on the one-level guide sleeve (7).
2. single-acting two-stage hydraulic cylinder according to claim 1 is characterized in that: support ring (8) and dust ring (10) are installed between the first stage piston bar (4) that one-level guide sleeve (7) matches with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020683833XU CN201884360U (en) | 2010-12-28 | 2010-12-28 | Single-acting two-stage hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020683833XU CN201884360U (en) | 2010-12-28 | 2010-12-28 | Single-acting two-stage hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884360U true CN201884360U (en) | 2011-06-29 |
Family
ID=44181900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020683833XU Expired - Fee Related CN201884360U (en) | 2010-12-28 | 2010-12-28 | Single-acting two-stage hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884360U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661300A (en) * | 2012-05-22 | 2012-09-12 | 向光 | Air charging air cylinder for bus |
| CN103775425A (en) * | 2014-02-21 | 2014-05-07 | 烟台未来自动装备有限责任公司 | Novel hydraulic lifting appliance |
| CN105736511A (en) * | 2016-04-18 | 2016-07-06 | 苏州市汉诺威升降台有限公司 | Hydraulic cylinder used for elevator |
| CN107542723A (en) * | 2017-10-13 | 2018-01-05 | 烟台未来自动装备有限责任公司 | A kind of nothing changes the single-acting two-stage hydraulic cylinder of level impact |
| CN109798277A (en) * | 2019-02-22 | 2019-05-24 | 山东万通液压股份有限公司 | A kind of thrusts two-stage hydraulic cylinders such as constant speed and exhaust oil filling method |
-
2010
- 2010-12-28 CN CN201020683833XU patent/CN201884360U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661300A (en) * | 2012-05-22 | 2012-09-12 | 向光 | Air charging air cylinder for bus |
| CN102661300B (en) * | 2012-05-22 | 2015-08-19 | 向光 | Passenger vehicle charges cylinder in the air |
| CN103775425A (en) * | 2014-02-21 | 2014-05-07 | 烟台未来自动装备有限责任公司 | Novel hydraulic lifting appliance |
| CN103775425B (en) * | 2014-02-21 | 2015-11-18 | 烟台未来自动装备有限责任公司 | A kind of novel hydraulic jacking equipment |
| CN105736511A (en) * | 2016-04-18 | 2016-07-06 | 苏州市汉诺威升降台有限公司 | Hydraulic cylinder used for elevator |
| CN107542723A (en) * | 2017-10-13 | 2018-01-05 | 烟台未来自动装备有限责任公司 | A kind of nothing changes the single-acting two-stage hydraulic cylinder of level impact |
| CN109798277A (en) * | 2019-02-22 | 2019-05-24 | 山东万通液压股份有限公司 | A kind of thrusts two-stage hydraulic cylinders such as constant speed and exhaust oil filling method |
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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 |
Granted publication date: 20110629 Termination date: 20141228 |
|
| EXPY | Termination of patent right or utility model |