CN103256275A - Quick double-acting hydraulic cylinder - Google Patents
Quick double-acting hydraulic cylinder Download PDFInfo
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- CN103256275A CN103256275A CN2013100403120A CN201310040312A CN103256275A CN 103256275 A CN103256275 A CN 103256275A CN 2013100403120 A CN2013100403120 A CN 2013100403120A CN 201310040312 A CN201310040312 A CN 201310040312A CN 103256275 A CN103256275 A CN 103256275A
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- piston rod
- cylinder barrel
- oil
- small piston
- cylinder
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Abstract
The invention discloses a quick double-acting hydraulic cylinder which comprises a cylinder barrel, a large piston rod and a small piston rod. The large piston rod is nested in the cylinder barrel, an oil-free cavity is formed between the large piston rod and the cylinder barrel, the tail end of the large piston rod is fixed on the cylinder barrel through a pressing ring, the small piston rod is nested in the large piston rod, a first oil cavity and a third oil cavity are formed between the small piston rod and the large piston rod, a guide sleeve is arranged among two ends of the small piston rod and the large piston rod, an oil conduit is arranged in the small piston rod, a second oil cavity is formed among the large piston rod, the small piston rod and the cylinder barrel, the small piston rod is provided with a first oil inlet and a second oil inlet, a third oil inlet is arranged at the front end of the cylinder barrel, the cylinder barrel is provided with an exhaust port communicated with the oil-free cavity, and a bleed screw is arranged in the exhaust port. Compared with a common oil cylinder, the quick double-acting hydraulic cylinder in the structure is more compact in integral structure, large in pushing force and high in feeding speed and return speed, and normal running rate of mechanical equipment is increased.
Description
Technical field
The present invention relates to technical field of hydraulic oil cylinder, particularly a kind of double-action fast hydraulic pressure cylinder.
Background technique
The fast hydraulic pressure cylinder is usually used in should having than high thrust, has again on the machinery of very fast work speed to use, and it mainly contains a piston cylinder and a plunger case combines.Existing fast hydraulic pressure cylinder has fast speeds, and all is to realize by the diameter of oversize piston bar when backhaul, thereby makes structure become huge when the worker advances, increased cost of production.
Summary of the invention
In order to overcome above shortcomings part in the prior art, the object of the present invention is to provide a kind of double-action fast hydraulic pressure cylinder, it drives big piston cylinder by the small piston cylinder, realizes quick return.Thereby reduce the diameter of big piston rod, reduce production costs.Compact structure, longer service life.
In order to reach above-mentioned purpose, the present invention adopts following concrete technological scheme: a kind of double-action fast hydraulic pressure cylinder, comprise cylinder barrel, big piston rod, small piston rod, wherein big piston rod comprises big piston, small piston rod comprises small piston, described big piston rod be nested in the cylinder barrel and and cylinder barrel between form no oil pocket, its end is fixed on the cylinder barrel by trim ring, described small piston rod be nested in the big piston rod and and big piston rod between form the first fluid chamber and the 3rd fluid chamber, be provided with guide sleeve between the two ends of described small piston rod and the big piston rod, be provided with oil guide pipe in the small piston rod, oil guide pipe is connected with the first fluid chamber, form the second fluid chamber between big piston rod and small piston rod and the cylinder barrel, small piston rod is provided with first filler opening and second filler opening, and first filler opening and second filler opening are connected with oil guide pipe, the front end of cylinder barrel is provided with the 3rd filler opening, establish the relief opening that the being and not being oil pocket communicates on the cylinder barrel, be provided with air bleeder screw plug in the relief opening, the 3rd filler opening is connected with the second fluid chamber.
Compared with prior art, the present invention has following outstanding advantage and effect: owing to be provided with above structure, this double-action fast hydraulic pressure cylinder not only has big thrust, have fast work speed, also have fast opening speed, reduce the diameter of big piston rod, thereby alleviated the weight of oil hydraulic cylinder, so not only reduce cost of production, and prolonged the working life of hydraulic jack, improved the normal operation rate of machinery.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is small piston rod assembly of the present invention;
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment
In order further to explain technological scheme of the present invention, the present invention will be described in detail below by specific embodiment.
As shown in Figure 1, a kind of double-action fast hydraulic pressure cylinder, comprise cylinder barrel 1, big piston rod 2, small piston rod 3, wherein big piston rod comprises big piston, small piston rod comprises small piston, described big piston rod 2 be nested in the cylinder barrel 1 and and cylinder barrel 1 between form no oil pocket 4, omitted the sealing problem of big piston rod, its end is fixed on the cylinder barrel 1 by trim ring 5, described small piston rod 3 be nested in the big piston rod 2 and and big piston rod 2 between form the first fluid chamber 11 and the 3rd fluid chamber 13, be provided with guide sleeve 6 between the two ends of described small piston rod 3 and the big piston rod 2, be provided with oil guide pipe 7 in the small piston rod 3, oil guide pipe 7 is connected with the first fluid chamber 11, form the second fluid chamber 12 between big piston rod 2 and small piston rod 3 and the cylinder barrel 1, the front end of cylinder barrel 1 is provided with the 3rd filler opening 23, establish the relief opening 8 that being and not being oil pocket 4 communicates on the cylinder barrel 1, be provided with air bleeder screw plug 9 in the relief opening 8, fluid enters from the 3rd filler opening 23, realize bigger thrust, when big piston and big piston rod movement, gas in the no oil pocket is discharged from relief opening 8, the 3rd filler opening 23 is connected with the second fluid chamber 12, small piston rod 3 is provided with first filler opening 21 and second filler opening 22, first filler opening 21 and second filler opening 22 are connected with oil guide pipe 7, first filler opening 21 with fluid in the 3rd fluid chamber 13, promote big piston rod and piston and stretch out fast, make the fast hydraulic pressure cylinder realize that quick worker advances; Second filler opening 22 is imported fluid in the first fluid chamber 11, promote big piston rod and big piston-retraction, because the first fluid chamber, 11 volumes are little, thereby realized the quick return of fast hydraulic pressure cylinder, this double-action fast hydraulic pressure cylinder not only has big thrust, has fast work speed, also has fast opening speed, reduce the diameter of big piston rod, thereby alleviated the weight of oil hydraulic cylinder, so not only reduce cost of production, and prolonged the working life of hydraulic jack, improved the normal operation rate of machinery.
Example is only unrestricted in order to technological scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. double-action fast hydraulic pressure cylinder, comprise cylinder barrel, big piston rod, small piston rod, it is characterized in that: described big piston rod be nested in the cylinder barrel and and cylinder barrel between form no oil pocket, its end is fixed on the cylinder barrel by trim ring, described small piston rod be nested in the big piston rod and and big piston rod between form the first fluid chamber and the 3rd fluid chamber, be provided with guide sleeve between the two ends of described small piston rod and the big piston rod, be provided with oil guide pipe in the small piston rod, oil guide pipe is connected with the first fluid chamber, form the second fluid chamber between big piston rod and small piston rod and the cylinder barrel, small piston rod is provided with first filler opening and second filler opening, first filler opening and second filler opening are connected with oil guide pipe, the front end of cylinder barrel is provided with the 3rd filler opening, establish the relief opening that the being and not being oil pocket communicates on the cylinder barrel, be provided with air bleeder screw plug in the relief opening, the 3rd filler opening is connected with the second fluid chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040312.0A CN103256275B (en) | 2013-02-01 | 2013-02-01 | A kind of double acting Hydraulic Cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040312.0A CN103256275B (en) | 2013-02-01 | 2013-02-01 | A kind of double acting Hydraulic Cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103256275A true CN103256275A (en) | 2013-08-21 |
| CN103256275B CN103256275B (en) | 2017-07-28 |
Family
ID=48960418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310040312.0A Active CN103256275B (en) | 2013-02-01 | 2013-02-01 | A kind of double acting Hydraulic Cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103256275B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405721A (en) * | 2014-11-28 | 2015-03-11 | 北京林业大学 | Double-rod rapid hydraulic cylinder |
| CN104806600A (en) * | 2015-04-16 | 2015-07-29 | 徐州重型机械有限公司 | Variable-speed hydraulic cylinder |
| CN104863923A (en) * | 2015-05-20 | 2015-08-26 | 中国重型机械研究院股份公司 | Oil cylinder with two-level stretching-out speed |
| CN105937510A (en) * | 2016-06-23 | 2016-09-14 | 莱州兴达液压机械科技有限公司 | Rapid pressurizing oil cylinder |
| CN106014348A (en) * | 2016-07-18 | 2016-10-12 | 天津优瑞纳斯液压机械有限公司 | Hydraulic oil pumping unit |
| CN106678122A (en) * | 2017-02-20 | 2017-05-17 | 合肥长源液压股份有限公司 | Child-mother differential hydraulic cylinder |
| CN108425911A (en) * | 2018-05-29 | 2018-08-21 | 华中科技大学 | A kind of cylinder moving type composite hydraulic cylinder |
| CN114263651A (en) * | 2021-12-30 | 2022-04-01 | 江苏华林气动液压成套设备有限公司 | Double-acting cylinder |
| CN115321409A (en) * | 2022-09-12 | 2022-11-11 | 江苏海力达机电制造有限公司 | Pump body that hydraulic jack lifted fast |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2178109A (en) * | 1985-07-25 | 1987-02-04 | David William Arnold | Actuator |
| CN2200497Y (en) * | 1994-08-13 | 1995-06-14 | 江苏省连云港市通用机械厂 | Hydraulic bending device of reinforcing bar |
| JP2003002559A (en) * | 2001-06-15 | 2003-01-08 | Oil Drive Kogyo Kk | Hydraulic jack of hydraulic type elevator and hydraulic circuit using it |
| CN101092982A (en) * | 2007-07-27 | 2007-12-26 | 韩顺和 | Boosting oil cylinder |
| CN201344164Y (en) * | 2009-01-19 | 2009-11-11 | 中国石化集团胜利石油管理局钻井工艺研究院 | Combined hydraulic cylinder |
| CN201714740U (en) * | 2010-07-22 | 2011-01-19 | 泸州众大科技液压件有限公司 | Multifunctional integrated hydraulic cylinder |
| CN202391858U (en) * | 2011-11-22 | 2012-08-22 | 江苏龙城洪力液压设备有限公司 | Double-stage duel-purpose hydraulic cylinder |
| CN203230653U (en) * | 2013-02-01 | 2013-10-09 | 福建省龙岩盛通液压有限公司 | Double-acting rapid hydraulic cylinder |
-
2013
- 2013-02-01 CN CN201310040312.0A patent/CN103256275B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2178109A (en) * | 1985-07-25 | 1987-02-04 | David William Arnold | Actuator |
| CN2200497Y (en) * | 1994-08-13 | 1995-06-14 | 江苏省连云港市通用机械厂 | Hydraulic bending device of reinforcing bar |
| JP2003002559A (en) * | 2001-06-15 | 2003-01-08 | Oil Drive Kogyo Kk | Hydraulic jack of hydraulic type elevator and hydraulic circuit using it |
| CN101092982A (en) * | 2007-07-27 | 2007-12-26 | 韩顺和 | Boosting oil cylinder |
| CN201344164Y (en) * | 2009-01-19 | 2009-11-11 | 中国石化集团胜利石油管理局钻井工艺研究院 | Combined hydraulic cylinder |
| CN201714740U (en) * | 2010-07-22 | 2011-01-19 | 泸州众大科技液压件有限公司 | Multifunctional integrated hydraulic cylinder |
| CN202391858U (en) * | 2011-11-22 | 2012-08-22 | 江苏龙城洪力液压设备有限公司 | Double-stage duel-purpose hydraulic cylinder |
| CN203230653U (en) * | 2013-02-01 | 2013-10-09 | 福建省龙岩盛通液压有限公司 | Double-acting rapid hydraulic cylinder |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405721B (en) * | 2014-11-28 | 2017-08-29 | 北京林业大学 | Double-rod Hydraulic Cylinder |
| CN104405721A (en) * | 2014-11-28 | 2015-03-11 | 北京林业大学 | Double-rod rapid hydraulic cylinder |
| CN104806600A (en) * | 2015-04-16 | 2015-07-29 | 徐州重型机械有限公司 | Variable-speed hydraulic cylinder |
| CN104863923A (en) * | 2015-05-20 | 2015-08-26 | 中国重型机械研究院股份公司 | Oil cylinder with two-level stretching-out speed |
| CN105937510A (en) * | 2016-06-23 | 2016-09-14 | 莱州兴达液压机械科技有限公司 | Rapid pressurizing oil cylinder |
| CN106014348A (en) * | 2016-07-18 | 2016-10-12 | 天津优瑞纳斯液压机械有限公司 | Hydraulic oil pumping unit |
| CN106014348B (en) * | 2016-07-18 | 2019-03-12 | 天津优瑞纳斯液压机械有限公司 | A kind of hydraulic pumping unit |
| CN106678122A (en) * | 2017-02-20 | 2017-05-17 | 合肥长源液压股份有限公司 | Child-mother differential hydraulic cylinder |
| CN106678122B (en) * | 2017-02-20 | 2018-05-04 | 合肥长源液压股份有限公司 | A kind of primary and secondary differential hydro cylinder |
| CN108425911A (en) * | 2018-05-29 | 2018-08-21 | 华中科技大学 | A kind of cylinder moving type composite hydraulic cylinder |
| CN108425911B (en) * | 2018-05-29 | 2019-09-06 | 华中科技大学 | A kind of cylinder moving type composite hydraulic cylinder |
| CN114263651A (en) * | 2021-12-30 | 2022-04-01 | 江苏华林气动液压成套设备有限公司 | Double-acting cylinder |
| CN115321409A (en) * | 2022-09-12 | 2022-11-11 | 江苏海力达机电制造有限公司 | Pump body that hydraulic jack lifted fast |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103256275B (en) | 2017-07-28 |
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Denomination of invention: Double acting quick hydraulic cylinder Effective date of registration: 20211101 Granted publication date: 20170728 Pledgee: Postal Savings Bank of China Limited by Share Ltd. Longyan branch Pledgor: FUJIAN LONGYAN SHENGTONG HYDRAULIC Co.,Ltd. Registration number: Y2021980011545 |