CN103423229A - Double-barrel oil cylinder - Google Patents
Double-barrel oil cylinder Download PDFInfo
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- CN103423229A CN103423229A CN2013103033799A CN201310303379A CN103423229A CN 103423229 A CN103423229 A CN 103423229A CN 2013103033799 A CN2013103033799 A CN 2013103033799A CN 201310303379 A CN201310303379 A CN 201310303379A CN 103423229 A CN103423229 A CN 103423229A
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Abstract
The invention provides a double-barrel oil cylinder, and relates to an oil cylinder. The double-barrel oil cylinder comprises a first-level cylinder barrel, wherein a cylinder bottom is arranged at one end of the first-level cylinder barrel, a first-level end cap is arranged at the other end of the first-level cylinder barrel, a first oil hole is formed in the position, corresponding to the inner end of the first-level end cap, of the first-level cylinder barrel, a second-level cylinder barrel is arranged in the first-level cylinder barrel, a first-level piston rod is arranged between the second-level cylinder barrel and the first-level cylinder barrel, a first-level piston matched with the first-level cylinder barrel is arranged at the inner end of the first-level piston rod in the first-level cylinder barrel, a second oil hole is formed in the position, corresponding to the first-level piston, of the cylinder bottom, and a first-level pressing sleeve is arranged at the outer end of the first-level piston rod. The double-barrel oil cylinder has the advantages that the structure is simple, and design is reasonable; a bearing installing tool is provided, a high-speed rail wheel axle is fixed by pushing a tip on a second-level piston rod through the tool, then a bearing is pressed on a wheel and the high-speed rail wheel axle through the first-level pressing sleeve of the first-level piston rod, and therefore rapid assembly of the high-speed rail wheel can be achieved.
Description
Technical field:
The present invention relates to a kind of oil cylinder, especially a kind of bitubular oil cylinder of installing for bearing.
Background technique:
Oil cylinder is oil hydraulic cylinder, and oil hydraulic cylinder is the straight line moving type executive component that the pressure reduction on ouput force and piston effective area and both sides thereof is directly proportional.Its function is to convert hydraulic energy to mechanical energy.The input quantity of oil hydraulic cylinder is flow and the pressure of fluid, output be point-to-point speed and power.The piston energy accomplish linear to-and-fro motion of oil hydraulic cylinder, the straight-line displacement of output is limited.Oil hydraulic cylinder is hydraulic energy to be converted to the energy conversion device of the mechanical energy of linear reciprocating motion.Oil hydraulic cylinder is comprised of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance basically.Damping device and venting gas appliance are depending on concrete application, and other devices are essential.
At present, the high ferro wheel is generally axle two wheel constructions, and two wheels are connected by bearing and wheel shaft, the installation requirement of bearing is higher, synchronously install the general both sides that adopt, and in order to realize the synchronous installation of bearing, the invention provides a kind of bitubular oil cylinder of installing for bearing.
Summary of the invention:
The purpose of this invention is to provide a kind of bitubular oil cylinder that use is installed for the high ferro wheel bearing, realize the quick assembling of high ferro wheel.
Technical problem to be solved by this invention realizes by the following technical solutions.
A kind of bitubular oil cylinder, it is characterized in that: comprise the one-level cylinder barrel, one end of one-level cylinder barrel is provided with cylinder bottom, the other end is provided with the one-level end cap, at the one-level end cap, inner corresponding one-level cylinder barrel place is provided with oilhole one, be provided with the secondary cylinder barrel in the one-level cylinder barrel, be provided with the first stage piston bar between secondary cylinder barrel and one-level cylinder barrel, the inner of first stage piston bar in the one-level cylinder barrel is provided with first stage piston and coordinates with the one-level cylinder barrel, be provided with oilhole two at first stage piston on corresponding cylinder bottom, in the outer end of first stage piston bar, be provided with the one-level gland;
Described secondary cylinder barrel one end is fixed on cylinder bottom, the other end of secondary cylinder barrel is provided with a secondary end cap, be provided with a second piston rod in the secondary cylinder barrel, the inner of second piston rod in the secondary cylinder barrel is provided with second piston and coordinates with the secondary cylinder barrel, second piston rod outer end end face is provided with a counterbore, being provided with one in counterbore can be axially movable top, top the inner is resisted against on the counterbore bottom surface by a spring, being provided with a secondary gland on the end face of second piston rod is encapsulated in counterbore top, be provided with an oil guide pipe communicates with the oil pocket of second piston rod in the center of cylinder bottom, being provided with oilhole three on the second piston rod on second piston right side communicates with the secondary cylinder barrel, being provided with oilhole four at second piston on corresponding cylinder bottom communicates with the secondary cylinder barrel.
Described spring is butterfly spring, small deformation, high bearing capacity, saving space.
Described secondary cylinder barrel and cylinder bottom are fixedly connected by welding, and structural strength is high.
Described first stage piston side is provided with groove, is provided with the inner side surface that seal ring withstands on the one-level cylinder barrel in groove; Described second piston side is provided with groove, is provided with the inner side surface that seal ring withstands on the secondary cylinder barrel in groove, strengthens the sealing of cylinder barrel.
The described one-level end cap outside is provided with an one-level gland.
A secondary top cover be fixed on second piston rod of the outer suit of secondary gland.
The invention has the beneficial effects as follows: simple in structure, reasonable in design, a kind of bearing installing tool is provided, this instrument is by promoting the top fixedly high ferro wheel axle on second piston rod, then the one-level gland by the first stage piston bar is pressed into bearing on wheel and high ferro wheel axle, can realize the quick assembling of high ferro wheel.
The accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Wherein 1: the one-level cylinder barrel; 2: cylinder bottom; 3: oil guide pipe; 4: the secondary cylinder barrel; 5: second piston; 6: first stage piston; 7: the one-level end cap; 8: the secondary end cap; 9: the one-level gland; 10: the first stage piston bar; 11: second piston rod; 12: spring; 13: the secondary top cover; 14: the one-level gland; 15: the secondary gland; 16: top; 17: groove; 18: seal ring.
Embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
A kind of bitubular oil cylinder as shown in Figure 1, comprise one-level cylinder barrel 1, one end of one-level cylinder barrel 1 is provided with cylinder bottom 2, cylinder bottom 2 is threaded with one-level cylinder barrel 1 by screw, the other end is provided with one-level end cap 7, one-level end cap 7 coordinates with the one-level cylinder barrel by the positioning step on it, at one-level end cap 7, inner corresponding one-level cylinder barrel place is provided with oilhole one, one-level end cap 7 outsides are provided with an one-level gland 9, one-level gland 9 is threaded with one-level cylinder barrel 1, interior edge face is pressed on one-level end cap 7 and one-level end cap 7 is pressed on the seam of one-level cylinder barrel 1, be provided with secondary cylinder barrel 4 in one-level cylinder barrel 1, be provided with first stage piston bar 10 1 of secondary cylinder barrel 4 and one-level cylinder barrel, wherein first stage piston bar 10 is hollow stem, the inner of first stage piston bar 10 in one-level cylinder barrel 4 is provided with first stage piston 6 and coordinates with one-level cylinder barrel 1, the other end of first stage piston bar 10 and one-level end cap 7 are slidably matched, be provided with oilhole two on the cylinder bottom 2 of first stage piston 6 correspondences, be provided with one-level gland 14 in the outer end of first stage piston bar 10, one-level gland 14 is fixedly connected with first stage piston bar 10 by connecting plate, wherein secondary cylinder barrel 4 one ends are welded on cylinder bottom 2, the other end of secondary cylinder barrel 4 is provided with a secondary end cap 8, second piston rod 11 is threaded with secondary cylinder barrel 4, be provided with a second piston rod 11 in secondary cylinder barrel 4, wherein second piston rod 11 1 ends are provided with oil pocket, the other end is provided with counterbore, the inner of second piston rod 11 in secondary cylinder barrel 4 is provided with second piston 5 and coordinates with secondary cylinder barrel 4, the other end of second piston rod and secondary end cap 8 are slidably matched, wherein counterbore is located at second piston rod 11 outer end end faces, being provided with one in counterbore can axially movable top 16, top 16 the inners are resisted against on the counterbore bottom surface by a spring 12, being provided with a secondary gland 15 on the end face of second piston rod 11 is encapsulated in counterbore top, secondary top cover 13 be fixed on second piston rod of the outer suit of secondary gland 15, secondary top cover 13 is fixed on second piston rod 11 by jackscrew, be provided with an oil guide pipe 3 communicates with the oil pocket of second piston rod 11 in the center of cylinder bottom 2, oil guide pipe 3 is fixed on cylinder bottom 2 by plug cock, being provided with oilhole three on the second piston rod 11 on second piston 5 right sides communicates with secondary cylinder barrel 4, being provided with oilhole four on the cylinder bottom 2 of second piston 5 correspondences communicates with secondary cylinder barrel 4, wherein first stage piston 6 sides are provided with groove 17, be provided with the inner side surface that seal ring 18 withstands on one-level cylinder barrel 1 in groove 17, wherein second piston 5 sides are provided with groove 17, are provided with the inner side surface that seal ring 18 withstands on secondary cylinder barrel 4 in groove 17.
During use, oilhole four oil-feeds promote second piston rod and stretch out and be pressed on wheel hub top, promoting the first stage piston bar by oilhole four oil-feeds stretches out, by the one-level gland, bearing is pressed on wheel and wheel shaft, after bearing installs, oilhole two oil-feeds promote the first stage piston bar and return, the oil guide pipe oil-feed, fluid enters the second piston rod oil pocket by oil guide pipe, then by oilhole three oil-feeds on piston rod, promotes second piston rod and returns, and whole bearing is installed and finished.
Above demonstration and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. a bitubular oil cylinder, it is characterized in that: comprise the one-level cylinder barrel, one end of one-level cylinder barrel is provided with cylinder bottom, the other end is provided with the one-level end cap, at the one-level end cap, inner corresponding one-level cylinder barrel place is provided with oilhole one, be provided with the secondary cylinder barrel in the one-level cylinder barrel, be provided with the first stage piston bar between secondary cylinder barrel and one-level cylinder barrel, the inner of first stage piston bar in the one-level cylinder barrel is provided with first stage piston and coordinates with the one-level cylinder barrel, be provided with oilhole two at first stage piston on corresponding cylinder bottom, in the outer end of first stage piston bar, be provided with the one-level gland;
Described secondary cylinder barrel one end is fixed on cylinder bottom, the other end of secondary cylinder barrel is provided with a secondary end cap, be provided with a second piston rod in the secondary cylinder barrel, the inner of second piston rod in the secondary cylinder barrel is provided with second piston and coordinates with the secondary cylinder barrel, second piston rod outer end end face is provided with a counterbore, being provided with one in counterbore can be axially movable top, top the inner is resisted against on the counterbore bottom surface by a spring, being provided with a secondary gland on the end face of second piston rod is encapsulated in counterbore top, be provided with an oil guide pipe communicates with the oil pocket of second piston rod in the center of cylinder bottom, being provided with oilhole three on the second piston rod on second piston right side communicates with the secondary cylinder barrel, being provided with oilhole four at second piston on corresponding cylinder bottom communicates with the secondary cylinder barrel.
2. according to a kind of bitubular oil cylinder described in claim 1, it is characterized in that: described spring is butterfly spring.
3. according to a kind of bitubular oil cylinder described in claim 1, it is characterized in that: described secondary cylinder barrel and cylinder bottom are fixedly connected by welding.
4. according to a kind of bitubular oil cylinder described in claim 1, it is characterized in that: described first stage piston side is provided with groove, is provided with the inner side surface that seal ring withstands on the one-level cylinder barrel in groove; Described second piston side is provided with groove, is provided with the inner side surface that seal ring withstands on the secondary cylinder barrel in groove.
5. according to a kind of bitubular oil cylinder described in claim 1, it is characterized in that: the described one-level end cap outside is provided with an one-level gland.
6. according to a kind of bitubular oil cylinder described in claim 1, it is characterized in that: a secondary top cover be fixed on second piston rod of the outer suit of secondary gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103033799A CN103423229A (en) | 2013-07-16 | 2013-07-16 | Double-barrel oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103033799A CN103423229A (en) | 2013-07-16 | 2013-07-16 | Double-barrel oil cylinder |
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| CN103423229A true CN103423229A (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013103033799A Pending CN103423229A (en) | 2013-07-16 | 2013-07-16 | Double-barrel oil cylinder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594934A (en) * | 2015-01-21 | 2015-05-06 | 巨隆液压设备(集团)有限公司 | Hydraulic bracket side protecting plate pushing device |
| CN106704300A (en) * | 2017-02-09 | 2017-05-24 | 中国科学院武汉岩土力学研究所 | Static load and dynamic load parallel connection oil cylinder |
| CN106969002A (en) * | 2017-04-10 | 2017-07-21 | 湖北工业大学 | Two-stage double-act-ing hydraulic J-Horner |
| CN108591169A (en) * | 2018-06-04 | 2018-09-28 | 安徽瑞铁轨道装备有限公司 | A kind of railway wheel is top to bearing press mounting constant pressure and the oil cylinder of quick change guide sleeve |
| CN112283203A (en) * | 2020-11-13 | 2021-01-29 | 德润液压科技（常州）有限公司 | Main oil cylinder of wheel pair press-mounting machine for railway |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4863171A (en) * | 1971-11-26 | 1973-09-03 | ||
| US6688211B1 (en) * | 2002-02-20 | 2004-02-10 | Vu H. Viet | Dual linear actuator |
| CN201106595Y (en) * | 2007-10-26 | 2008-08-27 | 湖南神龙泵阀制造有限公司 | Adjustable dual-speed slow-opening slow-closing oil cylinder |
| CN202001425U (en) * | 2010-12-31 | 2011-10-05 | 程荣波 | Selector switch device of high-low pressure inflator |
| CN202560686U (en) * | 2012-05-29 | 2012-11-28 | 常州海宏液压设备有限公司 | Long-stroke buffering cylinder |
| CN203441865U (en) * | 2013-07-16 | 2014-02-19 | 蚌埠市行星工程机械有限公司 | Double-cylinder oil cylinder |
-
2013
- 2013-07-16 CN CN2013103033799A patent/CN103423229A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4863171A (en) * | 1971-11-26 | 1973-09-03 | ||
| US6688211B1 (en) * | 2002-02-20 | 2004-02-10 | Vu H. Viet | Dual linear actuator |
| CN201106595Y (en) * | 2007-10-26 | 2008-08-27 | 湖南神龙泵阀制造有限公司 | Adjustable dual-speed slow-opening slow-closing oil cylinder |
| CN202001425U (en) * | 2010-12-31 | 2011-10-05 | 程荣波 | Selector switch device of high-low pressure inflator |
| CN202560686U (en) * | 2012-05-29 | 2012-11-28 | 常州海宏液压设备有限公司 | Long-stroke buffering cylinder |
| CN203441865U (en) * | 2013-07-16 | 2014-02-19 | 蚌埠市行星工程机械有限公司 | Double-cylinder oil cylinder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594934A (en) * | 2015-01-21 | 2015-05-06 | 巨隆液压设备(集团)有限公司 | Hydraulic bracket side protecting plate pushing device |
| CN104594934B (en) * | 2015-01-21 | 2016-06-29 | 巨隆液压设备(集团)有限公司 | A kind of hydraulic bracket side guard plate promotes device |
| CN106704300A (en) * | 2017-02-09 | 2017-05-24 | 中国科学院武汉岩土力学研究所 | Static load and dynamic load parallel connection oil cylinder |
| CN106969002A (en) * | 2017-04-10 | 2017-07-21 | 湖北工业大学 | Two-stage double-act-ing hydraulic J-Horner |
| CN108591169A (en) * | 2018-06-04 | 2018-09-28 | 安徽瑞铁轨道装备有限公司 | A kind of railway wheel is top to bearing press mounting constant pressure and the oil cylinder of quick change guide sleeve |
| CN112283203A (en) * | 2020-11-13 | 2021-01-29 | 德润液压科技（常州）有限公司 | Main oil cylinder of wheel pair press-mounting machine for railway |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131204 |