CN201391506Y - Multilevel difunctional hydraulic cylinder - Google Patents
Multilevel difunctional hydraulic cylinder Download PDFInfo
- Publication number
- CN201391506Y CN201391506Y CN200920019620U CN200920019620U CN201391506Y CN 201391506 Y CN201391506 Y CN 201391506Y CN 200920019620 U CN200920019620 U CN 200920019620U CN 200920019620 U CN200920019620 U CN 200920019620U CN 201391506 Y CN201391506 Y CN 201391506Y
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- piston rod
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Abstract
The utility model discloses a multilevel difunctional hydraulic cylinder, comprising a front cover, a cylinder body, a rear cover, a multilevel piston and a multilevel piston rod. The rod chamber of the multilevel piston rod is communicated with the front chamber of the cylinder body by an oil hole; the rear cover is provided with an oil opening I and an oil opening II; wherein the oil opening I is communicated with the rear chamber of the cylinder body, and the oil opening II is communicated with the piston rod chamber at the innermost layer. In the utility model, the rod chamber oil opening and the non-rod chamber oil opening of the multilevel difunctional hydraulic cylinder are all arranged on the position of the rear cover end, thus facilitating the installation, reducing the pressure loss caused by the long connection of the oil pipe, and reducing the possible leaking points.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder, particularly a kind of multistage double-acting hydraulic cylinder.
Background technique
Existing double-acting hydraulic cylinder is the pattern of two hydraulic fluid port front end oil-feeds or the oil-feed of a hydraulic fluid port front end, another rear end oil-feed.When being connected with external hydraulic source, it is long to connect oil pipe.
Shortcoming: during hydraulic cylinder works, connect that oil pipe is long to cause many pressure losses, oil pipe will move along with the motion of oil hydraulic cylinder simultaneously, easily causes oil leakage phenomenon.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of multistage double-acting hydraulic cylinder that reduces the length that connects oil pipe is provided.
In order to solve the problems of the technologies described above, the utility model comprises protecgulum, cylinder body, bonnet, multi-level piston and multi-level piston bar, the bar chamber of described multi-level piston bar and the ante-chamber of cylinder body all oil-through hole are connected, bonnet is provided with hydraulic fluid port I and hydraulic fluid port II, hydraulic fluid port I communicates with the back cavity of cylinder body, and hydraulic fluid port II communicates with the rod end chamber of innermost layer.
In order to make the reliability that in the process of piston motion, keeps hydraulic fluid port I to be communicated with rod end chamber, described hydraulic fluid port II communicates by multistage oil pipe with the rod end chamber of innermost layer, multistage oil pipe coaxial line socket-connects, gapped between adjacent oil pipe, bonnet and all pistons except that a most preceding piston fix with the rear end of multistage oil pipe successively, and the outermost front end of multistage oil pipe is in the rod end chamber of innermost layer.
In order to be suitable in the secondary double-acting hydraulic cylinder, using, described multi-level piston comprises piston I I and piston I, described multi-level piston bar comprises piston rod I and piston rod II, described oil pipe comprises oil pipe I and oil pipe II, oil pipe II is inserted among the oil pipe I, described protecgulum comprises protecgulum I and protecgulum II, protecgulum I is fixed on the front end of cylinder body and shutoff between cylinder body and piston rod I, protecgulum II is fixed on the front end of piston rod I and shutoff between piston rod I and piston rod II, piston I I is connected with piston rod II, piston I is connected with piston rod I, and rear end and the piston I of oil pipe I fix, and rear end and the bonnet of oil pipe II fix.
The beneficial effects of the utility model are: the utility model is that the rod chamber hydraulic fluid port of multistage double-acting hydraulic cylinder and rodless cavity hydraulic fluid port all are designed into position, bonnet end, both be convenient to install, reduced again because of connecting the long pressure loss that causes of oil pipe, reduced and to have leaked a little.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: 1, preceding earrings, 2, protecgulum II, 3, protecgulum I, 4, cylinder body, 5, piston rod I, 6, piston rod II, 7, oil pipe I, 8, oil pipe II, 9, piston I I, 10, piston I, 11, nut I, 12, nut II, 13, hydraulic fluid port I, 14, hydraulic fluid port II, 15, bonnet.
Embodiment
A kind of specific embodiment as shown in Figure 1, it is the secondary double-acting hydraulic cylinder, and it comprises preceding earrings 1, protecgulum II 2, protecgulum I 3, cylinder body 4, piston rod I 5, piston rod II 6, oil pipe I 7, oil pipe II 8, piston I I 9, piston I 10, nut I 11, nut II 12 and bonnet 15.
Piston rod I 5, piston rod II 6, oil pipe I 7, oil pipe II 8, piston I I 9, piston I 10, nut I 11 and nut II 12 are arranged in the cylinder body 4, protecgulum I 3 is fixed on the front end of cylinder body 4 and shutoff between cylinder body 4 and piston rod I 5, and protecgulum II 2 is fixed on the front end of piston rod I 5 and shutoff between piston rod I 5 and piston rod II 6.Preceding earrings 1 fixes with the front end of piston rod II 6, and bonnet 15 is fixed on the rear end of cylinder body 4.Piston I 10 contacts with the inwall liquid sealing of cylinder body 4, and piston I 10 is divided into ante-chamber and back cavity with the inner chamber of cylinder body 4.Piston I I9 is in the bar chamber of piston rod I 5 and with the inwall liquid sealing of piston rod I 5 and contacts.Piston I I9 is connected with piston rod II 6, piston I 10 is connected with piston rod I 5, oil pipe II 8 is inserted among the oil pipe I 7, the front end of oil pipe I 7 is in the bar chamber of piston rod II 6, the rear end of oil pipe I 7 fixes with piston I 10 by nut I 11, the rear end of oil pipe II 8 fixes with bonnet 15 by nut II 12, and two bar chambeies of piston rod I 5 and piston rod II 6 are connected by oilhole.
Bonnet 15 is provided with hydraulic fluid port I 13 and hydraulic fluid port II 14, and hydraulic fluid port I 13 communicates with oil pipe II 8, and hydraulic fluid port II 14 is connected with the back cavity of cylinder body 4.
Claims (3)
1. multistage double-acting hydraulic cylinder, comprise protecgulum, cylinder body (4), bonnet (15), multi-level piston and multi-level piston bar, it is characterized in that: the ante-chamber of the bar chamber of described multi-level piston bar and cylinder body (4) all oil-through hole is connected, bonnet (15) is provided with hydraulic fluid port I (13) and hydraulic fluid port II (14), hydraulic fluid port I (13) communicates with the back cavity of cylinder body (4), and hydraulic fluid port II (14) communicates with the rod end chamber of innermost layer.
2. multistage double-acting hydraulic cylinder according to claim 1, it is characterized in that: described hydraulic fluid port II (14) communicates by multistage oil pipe with the rod end chamber of innermost layer, multistage oil pipe coaxial line socket-connects, gapped between adjacent oil pipe, bonnet (15) and all pistons except that a most preceding piston fix with the rear end of multistage oil pipe successively, and the outermost front end of multistage oil pipe is in the rod end chamber of innermost layer.
3. multistage double-acting hydraulic cylinder according to claim 1, it is characterized in that: described multi-level piston comprises piston I I (9) and piston I (10), described multi-level piston bar comprises piston rod I (5) and piston rod II (6), described oil pipe comprises oil pipe I (7) and oil pipe II (8), oil pipe II (8) is inserted among the oil pipe I (7), described protecgulum comprises protecgulum I (3) and protecgulum II (2), protecgulum I (3) is fixed on the front end of cylinder body (4) and shutoff between cylinder body (4) and piston rod I (5), protecgulum II (2) is fixed on the front end of piston rod I (5) and shutoff between piston rod I (5) and piston rod II (6), piston I I (9) is connected with piston rod II (6), piston I (10) is connected with piston rod I (5), the rear end of oil pipe I (7) and piston I (10) fix, and the rear end of oil pipe II (8) and bonnet (15) fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920019620U CN201391506Y (en) | 2009-03-26 | 2009-03-26 | Multilevel difunctional hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920019620U CN201391506Y (en) | 2009-03-26 | 2009-03-26 | Multilevel difunctional hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391506Y true CN201391506Y (en) | 2010-01-27 |
Family
ID=41598333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920019620U Expired - Fee Related CN201391506Y (en) | 2009-03-26 | 2009-03-26 | Multilevel difunctional hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391506Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410279A (en) * | 2011-11-22 | 2012-04-11 | 江苏龙城洪力液压设备有限公司 | Double-stage double-acting hydraulic cylinder |
| CN102454658A (en) * | 2010-10-25 | 2012-05-16 | 徐州重型机械有限公司 | Jib system and telescopic oil cylinder thereof |
| CN102562709A (en) * | 2011-12-30 | 2012-07-11 | 湖南特力液压有限公司 | Difunctional synchronous telescopic type multistage hydraulic cylinder and hydraulic device |
| CN102720725A (en) * | 2012-06-14 | 2012-10-10 | 尼玛克焊接技术(北京)有限公司 | Multi-stage push cylinder |
| CN103498831A (en) * | 2013-10-17 | 2014-01-08 | 上海兰石重工机械有限公司 | Composite type high-pressure oil cylinder device |
| CN104863924A (en) * | 2015-05-24 | 2015-08-26 | 南京理工大学 | Three-cavity power hydraulic cylinder |
| CN105545871A (en) * | 2016-02-04 | 2016-05-04 | 柳州双吉机械有限公司 | Double-acting telescopic multi-stage oil cylinder |
| CN105545870A (en) * | 2015-12-22 | 2016-05-04 | 山东万通液压股份有限公司 | Sleeve type hydraulic cylinder, manufacturing method for sleeve type hydraulic cylinder and missile detecting platform |
| CN107387491A (en) * | 2016-05-16 | 2017-11-24 | 卡特彼勒（郑州）有限公司 | Double-action hydraulic mechanism, multi-stage expansion hydraulic mechanism and hydraulic support |
| CN109570374A (en) * | 2019-01-10 | 2019-04-05 | 浙江鹤立智能机械有限公司 | Multiple hydraulic transfer press |
| CN110081042A (en) * | 2019-05-21 | 2019-08-02 | 徐州徐工液压件有限公司 | A kind of multi-stage expansion hydraulic cylinder with the synchronous retraction of the independent stretching of classification |
| CN113007175A (en) * | 2019-12-20 | 2021-06-22 | 梁新宇 | Double-acting multistage hydraulic cylinder with built-in telescopic oil pipe |
-
2009
- 2009-03-26 CN CN200920019620U patent/CN201391506Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454658A (en) * | 2010-10-25 | 2012-05-16 | 徐州重型机械有限公司 | Jib system and telescopic oil cylinder thereof |
| CN102454658B (en) * | 2010-10-25 | 2014-12-10 | 徐州重型机械有限公司 | Jib system and telescopic oil cylinder thereof |
| CN102410279A (en) * | 2011-11-22 | 2012-04-11 | 江苏龙城洪力液压设备有限公司 | Double-stage double-acting hydraulic cylinder |
| CN102562709A (en) * | 2011-12-30 | 2012-07-11 | 湖南特力液压有限公司 | Difunctional synchronous telescopic type multistage hydraulic cylinder and hydraulic device |
| CN102562709B (en) * | 2011-12-30 | 2015-01-21 | 湖南特力液压有限公司 | Difunctional synchronous telescopic type multistage hydraulic cylinder and hydraulic device |
| CN102720725A (en) * | 2012-06-14 | 2012-10-10 | 尼玛克焊接技术(北京)有限公司 | Multi-stage push cylinder |
| CN102720725B (en) * | 2012-06-14 | 2015-04-22 | 尼玛克焊接技术(北京)有限公司 | Multi-stage push cylinder |
| CN103498831B (en) * | 2013-10-17 | 2015-12-09 | 上海兰石重工机械有限公司 | Composite type high-pressure oil cylinder device |
| CN103498831A (en) * | 2013-10-17 | 2014-01-08 | 上海兰石重工机械有限公司 | Composite type high-pressure oil cylinder device |
| CN104863924A (en) * | 2015-05-24 | 2015-08-26 | 南京理工大学 | Three-cavity power hydraulic cylinder |
| CN105545870A (en) * | 2015-12-22 | 2016-05-04 | 山东万通液压股份有限公司 | Sleeve type hydraulic cylinder, manufacturing method for sleeve type hydraulic cylinder and missile detecting platform |
| CN105545870B (en) * | 2015-12-22 | 2017-10-03 | 山东万通液压股份有限公司 | Sleeve-type hydraulic cylinder, the preparation method of sleeve-type hydraulic cylinder and missile measure platform |
| CN105545871A (en) * | 2016-02-04 | 2016-05-04 | 柳州双吉机械有限公司 | Double-acting telescopic multi-stage oil cylinder |
| CN107387491A (en) * | 2016-05-16 | 2017-11-24 | 卡特彼勒（郑州）有限公司 | Double-action hydraulic mechanism, multi-stage expansion hydraulic mechanism and hydraulic support |
| CN109570374A (en) * | 2019-01-10 | 2019-04-05 | 浙江鹤立智能机械有限公司 | Multiple hydraulic transfer press |
| CN109570374B (en) * | 2019-01-10 | 2024-02-09 | 浙江鹤立智能机械有限公司 | Multi-station hydraulic press |
| CN110081042A (en) * | 2019-05-21 | 2019-08-02 | 徐州徐工液压件有限公司 | A kind of multi-stage expansion hydraulic cylinder with the synchronous retraction of the independent stretching of classification |
| CN113007175A (en) * | 2019-12-20 | 2021-06-22 | 梁新宇 | Double-acting multistage hydraulic cylinder with built-in telescopic oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20140326 |