CN104196824A - High-pressure oil cylinder with composite structure - Google Patents
High-pressure oil cylinder with composite structure Download PDFInfo
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- CN104196824A CN104196824A CN201410423566.5A CN201410423566A CN104196824A CN 104196824 A CN104196824 A CN 104196824A CN 201410423566 A CN201410423566 A CN 201410423566A CN 104196824 A CN104196824 A CN 104196824A
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- cylinder
- barrel
- oil cylinder
- pressure oil
- urceolus
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Abstract
The invention relates to the technical field of high-pressure oil cylinders, in particular to a high-pressure oil cylinder with a composite structure. A cylinder barrel of the high-pressure oil cylinder is composed of at least two layers of thick walled circular barrels. The cylinder barrel comprises an inner barrel and an outer barrel. The inner barrel is made of alloy steel, the outer barrel is made of optimal carbon steel, the outer diameter of the inner barrel is the same as the inner diameter of the outer cylinder, the inner barrel is in clearance fit with the outer barrel, the gap between the inner barrel and the outer barrel is injected with pressure oil, prestress is generated, and strength of the inner cylinder barrel is improved. According to the high-pressure oil cylinder, multiple layers of circular barrels are in clearance fit with one another in a sleeved mode, and the novel high-pressure oil cylinder which is of the special structure and is formed by combining multiple layers of thick walled circular barrels is small in size and light in weight and has great superiority.
Description
Technical field
The present invention relates to high-voltage oil cylinder technical field, especially a kind of high-voltage oil cylinder of composite structure.
Background technique
In order to improve thrust or the pulling force of oil cylinder, often will improve the working pressure of oil cylinder or the cylinder diameter of increase oil cylinder.In improving oil cylinder working pressure, also to increase the wall thickness of oil cylinder.In the scope of the mechanics of materials, often this force structure element is called to thick walled cylinder.
Individual layer thick walled cylinder, no matter be the utilization from material, or all have many shortcomings from the consideration of intensity and Economy, the stress level of inwall, outer wall differs greatly, material can not be fully used, and the increase of wall thickness is worked hardly to yield stress after arriving to a certain degree.Combined thick cylinder is compared tool with individual layer thick walled cylinder and is had an enormous advantage, existing diversified combined thick cylinder at present, and be widely used in engineering.The basic characteristics of combined thick cylinder are the little cylinders of large jacket casing, and interference fit between each sleeve, produces prestressing force, thereby improve the bearing capacity of cylinder barrel.
Summary of the invention
In order to overcome the poor deficiency of existing high-voltage oil cylinder bearing capacity, the invention provides a kind of high-voltage oil cylinder of composite structure.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high-voltage oil cylinder of composite structure, this high-voltage oil cylinder is made up of at least 2 layers of thick walled cylinder, comprise inner core and urceolus, the external diameter of described inner core is identical with the internal diameter of urceolus, and inner core and urceolus are Spielpassung.
According to another embodiment of the invention, further comprise that inner core material is alloyed steel, urceolus material is quality carbon steel.
The invention has the beneficial effects as follows, the present invention adopts the multi-layer cylinder Spielpassung that is nested, when work, between inner/outer tube, pass into pressure oil, produce prestressing force, improve the intensity of inner cylinder tube, the special high-voltage oil cylinder of novel structure of being made by multilayer heavy wall combinatorial cylinders, volume is little, lightweight, tool has an enormous advantage.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of the embodiment of the present invention.
1. inner cores, 2. urceolus in figure.
Embodiment
Structural representation of the present invention as shown in Figure 1, Figure 2, a kind of high-voltage oil cylinder of composite structure, this high-voltage oil cylinder is made up of at least 2 layers of thick walled cylinder, comprise inner core 1 and urceolus 2, inner core 1 material is alloyed steel, described urceolus 2 materials are quality carbon steel, and the external diameter of described inner core 1 is identical with the internal diameter of urceolus 2, and inner core 1 and urceolus 2 are Spielpassung.
What the present invention proposed is a kind of novel, heavy wall combinatorial cylinders that structure is special, this heavy wall combinatorial cylinders particularly suitable is manufactured high-voltage oil cylinder, working pressure can be greater than 150MPa, between its each sleeve, it is Spielpassung, inner core material adopts yield strength high alloyed steel, and urceolus adopts common quality carbon steel, when work between inner/outer tube charged pressure oil, produce prestressing force by pressure oil, thereby greatly improve the bearing capacity of cylinder barrel.
Shown in Fig. 1, be two layers of combinatorial cylinders, inner core internal diameter is 2R
1, external diameter is 2R
2, urceolus internal diameter is 2R
2, urceolus external diameter is 2R
3inner core and urceolus are Spielpassung, when charged pressure medium (as hydraulic oil) in gap, now inner core had both born interior pressure, bore again external pressure, and urceolus only bears interior pressure, if pressed as P in inner core, interlayer pressurising is P/2, and now to bear interior pressure be P/2 to urceolus, inner core is in bearing interior pressure P and external pressure P/2, and the equivalent pressure bearing is only P/2.
Three layers of combinatorial cylinders interlayer pressurising value are respectively 2/3P, 1/3P.
Four layers of combinatorial cylinders interlayer pressurising value are respectively 3/4P, 2/4P, 1/4P.
N layer combinatorial cylinders interlayer pressurising value is distinguished.Every lamination is poor differs a step.
Above-mentioned situation is the situation that combinatorial cylinders bears interior pressure, if combinatorial cylinders bears external pressure, situation is contrary.
Now be nested the plunger type high-pressure oil cylinder of gap pressurising as example, as shown in (as Fig. 2), in the time that oil pressure cylinder enters inner casing taking two layers of cylinder, its pressure is P, and gap ensures that by decompressor clearance pressure is P/2 between cylinder, decompressor is to utilize big or small piston principle, and big or small piston area ratio is 2:1.
Can prove this employing multi-layer cylinder Spielpassung that is nested, the special high-voltage oil cylinder of novel structure that the prestressed thick-wall combinatorial cylinders of gap pressurising is made, volume is little, lightweight, and tool has an enormous advantage.
Claims (2)
1. the high-voltage oil cylinder of a composite structure, it is characterized in that, the cylinder barrel of this high-voltage oil cylinder is made up of at least 2 layers of thick walled cylinder, comprises inner core (1) and urceolus (2), the external diameter of described inner core (1) is identical with the internal diameter of urceolus (2), and inner core (1) and urceolus (2) are Spielpassung.
2. the high-voltage oil cylinder of a kind of composite structure according to claim 1, is characterized in that, described inner core (1) material is alloyed steel, and described urceolus (2) material is quality carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423566.5A CN104196824A (en) | 2014-08-26 | 2014-08-26 | High-pressure oil cylinder with composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423566.5A CN104196824A (en) | 2014-08-26 | 2014-08-26 | High-pressure oil cylinder with composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104196824A true CN104196824A (en) | 2014-12-10 |
Family
ID=52082167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410423566.5A Pending CN104196824A (en) | 2014-08-26 | 2014-08-26 | High-pressure oil cylinder with composite structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104196824A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989997A (en) * | 2017-11-21 | 2018-05-04 | 南京理工大学 | A kind of liquid-filled ultra-high pressure apparatus of interlayer |
| WO2020183292A1 (en) * | 2019-03-09 | 2020-09-17 | Ko Stanley Moon Kai | High pressure barrel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252906Y (en) * | 1996-05-07 | 1997-04-23 | 骆永志 | Impact energy absorber |
| CN2260911Y (en) * | 1996-07-02 | 1997-08-27 | 胡杨中 | Super-pressure working cylinder |
| JP2001163529A (en) * | 1999-12-10 | 2001-06-19 | Tanaka Shikan Kk | Combinend cylinder for unreeling inner layer |
| CN101655829A (en) * | 2009-09-14 | 2010-02-24 | 湖南师范大学 | External pressure self-intensification cylinder and design calculation and manufacturing method thereof |
| CN102444574A (en) * | 2011-11-19 | 2012-05-09 | 秦雨雨 | High-pressure fluid filling structure material |
| CN204300029U (en) * | 2014-08-26 | 2015-04-29 | 常州力安液压设备有限公司 | A kind of high-voltage oil cylinder of composite construction |
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2014
- 2014-08-26 CN CN201410423566.5A patent/CN104196824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252906Y (en) * | 1996-05-07 | 1997-04-23 | 骆永志 | Impact energy absorber |
| CN2260911Y (en) * | 1996-07-02 | 1997-08-27 | 胡杨中 | Super-pressure working cylinder |
| JP2001163529A (en) * | 1999-12-10 | 2001-06-19 | Tanaka Shikan Kk | Combinend cylinder for unreeling inner layer |
| CN101655829A (en) * | 2009-09-14 | 2010-02-24 | 湖南师范大学 | External pressure self-intensification cylinder and design calculation and manufacturing method thereof |
| CN102444574A (en) * | 2011-11-19 | 2012-05-09 | 秦雨雨 | High-pressure fluid filling structure material |
| CN204300029U (en) * | 2014-08-26 | 2015-04-29 | 常州力安液压设备有限公司 | A kind of high-voltage oil cylinder of composite construction |
Non-Patent Citations (3)
| Title |
|---|
| 刘志成等: "厚壁筒公式在油缸设计中的应用及其应用条件的探讨", 《机床与液压》 * |
| 张慧玲等: "多层厚壁空心圆筒界面缺陷无损检测周向导波研究", 《南京理工大学学报》 * |
| 陈国理等: "多层高压容器存在间隙时的应力分析与计算程序", 《华南工学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989997A (en) * | 2017-11-21 | 2018-05-04 | 南京理工大学 | A kind of liquid-filled ultra-high pressure apparatus of interlayer |
| WO2020183292A1 (en) * | 2019-03-09 | 2020-09-17 | Ko Stanley Moon Kai | High pressure barrel |
| US11230079B2 (en) | 2019-03-09 | 2022-01-25 | Neo Mechanics Limited | High pressure barrel |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |