CN102889262A - Combined type hydraulic cylinder with floating cylinder barrel - Google Patents
Combined type hydraulic cylinder with floating cylinder barrel Download PDFInfo
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- CN102889262A CN102889262A CN2012103370641A CN201210337064A CN102889262A CN 102889262 A CN102889262 A CN 102889262A CN 2012103370641 A CN2012103370641 A CN 2012103370641A CN 201210337064 A CN201210337064 A CN 201210337064A CN 102889262 A CN102889262 A CN 102889262A
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- oil inlet
- inlet end
- cylinder barrel
- oil
- piston rod
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Abstract
The invention discloses a combined type hydraulic cylinder with a floating cylinder barrel. The combined type hydraulic cylinder comprises an oil inlet end piston rod, a combined type cylinder barrel and a non-oil inlet end piston rod, wherein the oil inlet end piston rod and the non-oil inlet end piston rod are respectively combined with an oil inlet end cylinder barrel and a non-oil inlet end cylinder barrel to form an oil inlet end hydraulic cylinder and a non-oil inlet end hydraulic cylinder; a large cavity oil port and a small cavity oil port which are respectively communicated with a large cavity and a small cavity of the oil inlet end cylinder barrel are respectively formed in the oil inlet end piston rod; a large cavity oil pipe is communicated with the large cavities of the oil inlet end cylinder barrel and the non-oil inlet cylinder barrel; and a small cavity oil pipe is communicated with the small cavities of the oil inlet end cylinder barrel and the non-oil inlet cylinder barrel. According to the combined type hydraulic cylinder with the floating cylinder barrel, the design of the hydraulic oil cylinders is optimized, so that two hydraulic oil cylinders with relatively small travels are connected in series with each other; by a mode of feeding oil through cylinder rods, the combined type hydraulic cylinder can telescopically move in two directions; an oil cylinder telescopic amount with relatively high amplitude is realized when a mounting size is relatively small; and therefore, a telescopic amount which is one time higher than that of the common hydraulic cylinder can be realized.
Description
Technical field
The invention belongs to engineering machinery field, relate to a kind of oil hydraulic cylinder, the combined type hydraulic cylinder that especially a kind of cylinder barrel floats.
Background technique
Along with the extensive use of hydraulics, more and more higher to the performance requirement of hydraulic product, also more and more higher for the performance requirement of executive component oil hydraulic cylinder.Needing built-in hydraulic jack such as fork lift side shifter etc., and the stroke of hydraulic jack is being required higher, but the limited occasion of installing space is comparatively strong to the demand of extraordinary oil hydraulic cylinder.The oil hydraulic cylinder of common single cylinder cylinder, cylinder bar structure is difficult to satisfy usage requirement.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, the combined type hydraulic cylinder that provides a kind of cylinder barrel to float, this combined type hydraulic cylinder is a kind of twin-tub bar, combined type twin-tub cylinder, an end cylinder bar oil-feed can bi-directional expansion, the combined type hydraulic cylinder that cylinder barrel floats, on less installation dimension, realized oil cylinder extending amount by a larger margin, can realize the extending amount of 1 times of more common oil hydraulic cylinder.Have simultaneously simple in structure, volume is little, flexible operation, reliable in action etc. advantage.
The objective of the invention is to solve by the following technical programs:
The combined type hydraulic cylinder that a kind of cylinder barrel floats comprises oil inlet end piston rod, combined type cylinder barrel and non-oil inlet end piston rod; Described combined type cylinder barrel comprises oil inlet end cylinder barrel, non-oil inlet end cylinder barrel, large chamber oil pipe and loculus oil pipe; Described oil inlet end piston rod and non-oil inlet end piston rod form oil inlet end oil hydraulic cylinder and non-oil inlet end oil hydraulic cylinder with oil inlet end cylinder barrel and non-oil inlet end cylinder barrel respectively, and offer large chamber hydraulic fluid port and loculus hydraulic fluid port on the oil inlet end piston rod, wherein large chamber hydraulic fluid port is communicated with the large chamber of oil inlet end cylinder barrel, and the loculus hydraulic fluid port is communicated with the loculus of oil inlet end cylinder barrel; Described oil inlet end cylinder barrel is welded and fixed with non-oil inlet end cylinder barrel is in the same place, and large chamber oil pipe is communicated with the large chamber of oil inlet end cylinder barrel and non-oil inlet end cylinder barrel, the loculus of loculus oil pipe connection oil inlet end cylinder barrel and non-oil inlet end cylinder barrel.
Above-mentioned oil inlet end piston rod comprises with the outer body of rod of inner chamber and the oil inlet end piston rod head that offers endoporus; The oil inlet end self-lubricating knuckle bearing is installed in the endoporus of described oil inlet end piston rod head; One end and the oil inlet end piston rod head of the described outer body of rod are integrally welded, and are provided with the interior body of rod in its inner chamber; On the described outer body of rod near an end of oil inlet end piston rod head be provided with first, second hydraulic fluid port,, and the intracavity inter-connection of the first hydraulic fluid port and the interior body of rod, the second hydraulic fluid port is connected with cavity between the outer body of rod and the interior body of rod; The described outer body of rod has an end of boss also to be provided with the oil inlet end piston body, and the middle part is provided with adjusting sleeve; Described large chamber hydraulic fluid port is arranged on the end of the interior body of rod, and the large chamber of oil inlet end cylinder barrel is communicated with the inner chamber of the interior body of rod; The loculus hydraulic fluid port is arranged on the outer body of rod near an end of oil inlet end piston body, and the loculus of oil inlet end cylinder barrel is connected with cavity between the outer body of rod and the interior body of rod.
The oil inlet end cylinder barrel of combinations thereof formula cylinder barrel and the end of non-oil inlet end cylinder barrel are welded with oil inlet end end cap and non-oil inlet end end cap; And oil inlet end cylinder barrel and non-oil inlet end cylinder barrel are connected with respectively oil inlet end guide sleeve and non-oil inlet end guide sleeve by screw thread.
Above-mentioned non-oil inlet end piston rod comprises the non-oil inlet end piston body of rod and non-oil inlet end piston rod head; The described non-oil inlet end piston body of rod has an end of boss to be provided with non-oil inlet end piston body; Non-oil inlet end self-lubricating knuckle bearing is installed in the endoporus of described non-oil inlet end piston rod head.
Above-mentioned oil inlet end piston rod head and non-oil inlet end piston rod head are that a post is to the cylindrical body that offers endoporus.
The present invention proposes the combined type hydraulic cylinder that a kind of cylinder barrel floats, this combined type hydraulic cylinder is by optimizing the design of hydraulic jack, the hydraulic jack that individual stroke is less is cascaded, and the mode by the oil-feed of cylinder bar, the cylinder barrel of realizing Assembled hydraulic oil cylinder floats, has twin-tub bar structure, adopt combined type twin-tub cylinder, one end cylinder bar oil-feed, can bi-directional expansion moving combined type hydraulic cylinder, on less installation dimension, realized oil cylinder extending amount by a larger margin, can realize the extending amount of 1 times of more common oil hydraulic cylinder.Have installing space little, distance of stretch out and draw back is large, can realize bi-directional expansion, and is simple in structure, volume is little, flexible operation, reliable in action advantages of higher, be applicable to and the stroke of hydraulic jack is required higher, but the limited occasion of installing space.
Description of drawings
Fig. 1 is that the present invention entirely stretches out state and analyses and observe the internal structure schematic diagram;
Fig. 2 is that the present invention entirely stretches out state and faces the external structure schematic diagram;
Fig. 3 is that the present invention entirely stretches out and looks the external structure schematic diagram on the state;
Fig. 4 is that the present invention stretches out state side-looking external structure schematic diagram entirely;
Fig. 5 looks the external structure schematic diagram on full reduced time state of the present invention;
Fig. 6 is the local enlarged diagram in I of the present invention place.
Wherein: 1 is the first hydraulic fluid port; 2 is the second hydraulic fluid port; 3 is the outer body of rod; 4 is the interior body of rod; 5 is the oil inlet end guide sleeve; 6 is adjusting sleeve; 7 is the oil inlet end self-lubricating knuckle bearing; 8 is the oil inlet end piston body; 9 is the oil inlet end end cap; 10 is the non-oil inlet end piston body of rod; 11 is non-oil inlet end guide sleeve; 12 is non-oil inlet end cylinder barrel; 13 is non-oil inlet end piston body; 14 is non-oil inlet end end cap; 15 is non-oil inlet end piston rod head; 16 is non-oil inlet end self-lubricating knuckle bearing; 17 is the oil inlet end self-lubricating knuckle bearing; 18 is the oil inlet end piston rod head; 19 is large chamber oil pipe; 20 is the loculus oil pipe; 21 is large chamber hydraulic fluid port; 22 is the loculus hydraulic fluid port.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Referring to Fig. 1-6, the combined type hydraulic cylinder that this cylinder barrel floats comprises oil inlet end piston rod, combined type cylinder barrel and non-oil inlet end piston rod; Described combined type cylinder barrel comprises oil inlet end cylinder barrel 7, non-oil inlet end cylinder barrel 12, large chamber oil pipe 19 and loculus oil pipe 20; Described oil inlet end piston rod and non-oil inlet end piston rod form oil inlet end oil hydraulic cylinder and non-oil inlet end oil hydraulic cylinder with oil inlet end cylinder barrel 7 and non-oil inlet end cylinder barrel 12 respectively, and offer large chamber hydraulic fluid port 21 and loculus hydraulic fluid port 22 on the oil inlet end piston rod, wherein large chamber hydraulic fluid port 21 is communicated with the large chamber of oil inlet end cylinder barrels 7, and loculus hydraulic fluid port 22 is communicated with the loculus of oil inlet end cylinder barrels 7; Described oil inlet end cylinder barrel 7 is welded and fixed with non-oil inlet end cylinder barrel 12 is in the same place, and large chamber oil pipe 19 is communicated with the large chamber of oil inlet end cylinder barrel 7 and non-oil inlet end cylinder barrel 12, the loculus of loculus oil pipe 20 connection oil inlet end cylinder barrels 7 and non-oil inlet end cylinder barrel 12.
The oil inlet end piston rod comprises with the outer body of rod 3 of inner chamber and the oil inlet end piston rod head 18 that offers endoporus; Oil inlet end self-lubricating knuckle bearing 17 is installed in the endoporus of described oil inlet end piston rod head 18; One end and the oil inlet end piston rod head 18 of the described outer body of rod 3 are integrally welded, and are provided with the interior body of rod 4 in its inner chamber; Be provided with first, second hydraulic fluid port 1,2 near an end of oil inlet end piston rod head 18 on the described outer body of rod 3, and the intracavity inter-connection of the first hydraulic fluid port 1 and the interior body of rod 4, the second hydraulic fluid port 2 is connected with cavity between the outer body of rod 3 and the interior body of rod 4; The described outer body of rod 3 has an end of boss also to be provided with oil inlet end piston body 8, and the middle part is provided with adjusting sleeve 6; Described large chamber hydraulic fluid port 21 is arranged on the end of the interior body of rod 4, and the large chamber of oil inlet end cylinder barrel 7 is communicated with the inner chamber of the interior body of rod 4; Loculus hydraulic fluid port 22 is arranged on the outer body of rod 3 near an end of oil inlet end piston bodies 8, and the loculus of oil inlet end cylinder barrel 7 is connected with cavity between the outer body of rod 3 and the interior body of rod 4.The oil inlet end cylinder barrel 7 of combined type cylinder barrel and the end of non-oil inlet end cylinder barrel 12 are welded with oil inlet end end cap 9 and non-oil inlet end end cap 14; And oil inlet end cylinder barrel 7 and non-oil inlet end cylinder barrel 12 are connected with respectively oil inlet end guide sleeve 5 and non-oil inlet end guide sleeve 11 by screw thread.Non-oil inlet end piston rod comprises the non-oil inlet end piston body of rod 10 and non-oil inlet end piston rod head 15; The described non-oil inlet end piston body of rod 10 has an end of boss to be provided with non-oil inlet end piston body 13; Non-oil inlet end self-lubricating knuckle bearing 16 is installed in the endoporus of described non-oil inlet end piston rod head 15.Oil inlet end piston rod head 18 and non-oil inlet end piston rod head 15 are that a post is to the cylindrical body that offers endoporus.The large chamber of above-mentioned oil inlet end cylinder barrel 7 is the cavity between oil inlet end piston body 8 and the oil inlet end end cap 9, and loculus is between oil inlet end cylinder barrel 7 and the outer body of rod 3 and the cavity that forms between oil inlet end piston body 8 and the oil inlet end guide sleeve; The large chamber of non-oil inlet end cylinder barrel 12 is the cavity between non-oil inlet end piston body 13 and the non-oil inlet end end cap 14, and loculus is between non-oil inlet end cylinder barrel 7 and the non-oil inlet end piston body of rod 10 and the cavity of 11 compositions of non-oil inlet end piston body 13 and non-oil inlet end guide sleeve.
Specific works process of the present invention is achieved in that
The high pressure liquid force feed enters the internal cavity of the interior body of rod 4 by the first hydraulic fluid port 1, enter the large chamber of oil inlet end cylinder barrel 7 from the large chamber hydraulic fluid port 21 of the interior body of rod 4 the other ends, because oil inlet end is communicated with the large chamber of non-oil inlet end cylinder barrel 12 in the large chamber of cylinder barrel 7, so oil inlet end piston rod and non-oil inlet end piston rod can be simultaneously protruding, because the loculus of oil inlet end cylinder barrel 7 also is communicated with the loculus of non-oil inlet end cylinder barrel 12, so the low-pressure hydraulic oil in oil inlet end cylinder barrel 7 loculuses and non-oil inlet end cylinder barrel 12 loculuses enters in the cavity of the interior body of rod 4 and the outer body of rod 3 compositions by the loculus hydraulic fluid port 22 of the outer body of rod 3 one ends, and by the second hydraulic fluid port 2 oil sump tanks.Otherwise if the high pressure liquid force feed enters by the second hydraulic fluid port 2, oil inlet end piston rod and non-oil inlet end piston rod can inwardly be retracted simultaneously.So just realized an end cylinder bar oil-feed, bi-directional expansion on less installation dimension, has been realized oil cylinder extending amount by a larger margin, can realize the extending amount of 1 times of more common oil hydraulic cylinder, this Combined oil cylinder is simple in structure simultaneously, volume is little, flexible operation, reliable in action.
Claims (5)
1. the combined type hydraulic cylinder that cylinder barrel floats is characterized in that: comprise oil inlet end piston rod, combined type cylinder barrel and non-oil inlet end piston rod; Described combined type cylinder barrel comprises oil inlet end cylinder barrel (7), non-oil inlet end cylinder barrel (12), large chamber oil pipe (19) and loculus oil pipe (20); Described oil inlet end piston rod and non-oil inlet end piston rod form oil inlet end oil hydraulic cylinder and non-oil inlet end oil hydraulic cylinder with oil inlet end cylinder barrel (7) and non-oil inlet end cylinder barrel (12) respectively, and offer large chamber hydraulic fluid port (21) and loculus hydraulic fluid port (22) on the oil inlet end piston rod, wherein large chamber hydraulic fluid port (21) is communicated with the large chamber of oil inlet end cylinder barrel (7), and loculus hydraulic fluid port (22) is communicated with the loculus of oil inlet end cylinder barrel (7); The outer wall of described oil inlet end cylinder barrel (7) and non-oil inlet end cylinder barrel (12) is fixed together by welding, and large chamber oil pipe (19) is communicated with the large chamber of oil inlet end cylinder barrel (7) and non-oil inlet end cylinder barrel (12), and loculus oil pipe (20) is communicated with the loculus of oil inlet end cylinder barrel (7) and non-oil inlet end cylinder barrel (12).
2. the combined type hydraulic cylinder that floats of a kind of cylinder barrel according to claim 1 is characterized in that: described oil inlet end piston rod comprises with the outer body of rod (3) of inner chamber and the oil inlet end piston rod head (18) that offers endoporus; Oil inlet end self-lubricating knuckle bearing (17) is installed in the endoporus of described oil inlet end piston rod head (18); One end of the described outer body of rod (3) and oil inlet end piston rod head (18) are integrally welded, and are provided with the interior body of rod (4) with inner chamber in its inner chamber; The upper end near oil inlet end piston rod head (18) of the described outer body of rod (3) is provided with first, second hydraulic fluid port (1,2), and the intracavity inter-connection of the first hydraulic fluid port (1) and the interior body of rod (4), the second hydraulic fluid port (2) is connected with cavity between the outer body of rod (3) and the interior body of rod (4); The described outer body of rod (3) has an end of boss also to be provided with oil inlet end piston body (8), and the middle part is provided with adjusting sleeve (6); Described large chamber hydraulic fluid port (21) is arranged on the end of the interior body of rod (4), and the large chamber of oil inlet end cylinder barrel (7) is communicated with the inner chamber of the interior body of rod (4); Loculus hydraulic fluid port (22) is arranged on the outer body of rod (3) near an end of oil inlet end piston body (8), and the loculus of oil inlet end cylinder barrel (7) is connected with cavity between the outer body of rod (3) and the interior body of rod (4).
3. the combined type hydraulic cylinder that floats of a kind of cylinder barrel according to claim 1, it is characterized in that: the oil inlet end cylinder barrel (7) of described combined type cylinder barrel and the end of non-oil inlet end cylinder barrel (12) are welded with oil inlet end end cap (9) and non-oil inlet end end cap (14); And oil inlet end cylinder barrel (7) and non-oil inlet end cylinder barrel (12) are connected with respectively oil inlet end guide sleeve (5) and non-oil inlet end guide sleeve (11) by screw thread.
4. the combined type hydraulic cylinder that floats of a kind of cylinder barrel according to claim 1, it is characterized in that: described non-oil inlet end piston rod comprises the non-oil inlet end piston body of rod (10) and non-oil inlet end piston rod head (15); The described non-oil inlet end piston body of rod (10) has an end of boss to be provided with non-oil inlet end piston body (13); Non-oil inlet end self-lubricating knuckle bearing (16) is installed in the endoporus of described non-oil inlet end piston rod head (15).
5. according to claim 2 or the combined type hydraulic cylinder that floats of 4 described a kind of cylinder barrels, it is characterized in that: described oil inlet end piston rod head (18) and non-oil inlet end piston rod head (15) are that a post is to the cylindrical body that offers endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210337064.1A CN102889262B (en) | 2012-09-12 | 2012-09-12 | Combined type hydraulic cylinder with floating cylinder barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210337064.1A CN102889262B (en) | 2012-09-12 | 2012-09-12 | Combined type hydraulic cylinder with floating cylinder barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102889262A true CN102889262A (en) | 2013-01-23 |
| CN102889262B CN102889262B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210337064.1A Expired - Fee Related CN102889262B (en) | 2012-09-12 | 2012-09-12 | Combined type hydraulic cylinder with floating cylinder barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889262B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216484A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Lower crossbeam inner piston cylinder structure with oil tank arranged on upper crossbeam hydraulic machine |
| CN110307210A (en) * | 2019-08-02 | 2019-10-08 | 山东赛瓦特动力设备有限公司 | A kind of upright lamp stand mechanism of series cylinder |
| CN112113064A (en) * | 2020-09-26 | 2020-12-22 | 宜宾学院 | Series oil cylinder type acceleration controller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1079930B (en) * | 1956-12-17 | 1960-04-14 | Gutehoffnungshuette Sterkrade | Hydraulic pressure compensation device for work machines |
| DE2932379A1 (en) * | 1978-08-19 | 1980-02-28 | Rolls Royce | DEVICE FOR SYNCHRONIZING THE MOVEMENT OF TWO OR MORE COMPONENTS |
| US4516468A (en) * | 1983-01-10 | 1985-05-14 | Hydraulic Technology Corporation | Double acting telescopic cylinder construction |
| EP0648941A1 (en) * | 1993-10-18 | 1995-04-19 | UNIVER S.p.A. | Pneumatic actuator with adjustable stop and damping device |
| US5573366A (en) * | 1992-03-30 | 1996-11-12 | Meijer; Sjoerd | Hydraulic device with synchronously operating jacks |
| EP0903501A2 (en) * | 1997-09-23 | 1999-03-24 | Luciano Migliori | One-side fed, double-acting, pneumatic actuators |
| CN202768518U (en) * | 2012-09-12 | 2013-03-06 | 中国人民解放军总后勤部建筑工程研究所 | Combination type hydraulic cylinder with floating cylinder barrels |
-
2012
- 2012-09-12 CN CN201210337064.1A patent/CN102889262B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1079930B (en) * | 1956-12-17 | 1960-04-14 | Gutehoffnungshuette Sterkrade | Hydraulic pressure compensation device for work machines |
| DE2932379A1 (en) * | 1978-08-19 | 1980-02-28 | Rolls Royce | DEVICE FOR SYNCHRONIZING THE MOVEMENT OF TWO OR MORE COMPONENTS |
| US4516468A (en) * | 1983-01-10 | 1985-05-14 | Hydraulic Technology Corporation | Double acting telescopic cylinder construction |
| US5573366A (en) * | 1992-03-30 | 1996-11-12 | Meijer; Sjoerd | Hydraulic device with synchronously operating jacks |
| EP0648941A1 (en) * | 1993-10-18 | 1995-04-19 | UNIVER S.p.A. | Pneumatic actuator with adjustable stop and damping device |
| EP0903501A2 (en) * | 1997-09-23 | 1999-03-24 | Luciano Migliori | One-side fed, double-acting, pneumatic actuators |
| CN202768518U (en) * | 2012-09-12 | 2013-03-06 | 中国人民解放军总后勤部建筑工程研究所 | Combination type hydraulic cylinder with floating cylinder barrels |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216484A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Lower crossbeam inner piston cylinder structure with oil tank arranged on upper crossbeam hydraulic machine |
| CN103216484B (en) * | 2013-04-09 | 2015-10-21 | 西安交通大学 | A kind of fuel tank is placed in the bottom end rail inner carrier cylinder structure of upper beam hydraulic press |
| CN110307210A (en) * | 2019-08-02 | 2019-10-08 | 山东赛瓦特动力设备有限公司 | A kind of upright lamp stand mechanism of series cylinder |
| CN112113064A (en) * | 2020-09-26 | 2020-12-22 | 宜宾学院 | Series oil cylinder type acceleration controller |
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| Publication number | Publication date |
|---|---|
| CN102889262B (en) | 2015-04-15 |
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Granted publication date: 20150415 Termination date: 20210912 |