CN104074830B - A kind of novel hydraulic cylinder - Google Patents
A kind of novel hydraulic cylinder Download PDFInfo
- Publication number
- CN104074830B CN104074830B CN201410289511.XA CN201410289511A CN104074830B CN 104074830 B CN104074830 B CN 104074830B CN 201410289511 A CN201410289511 A CN 201410289511A CN 104074830 B CN104074830 B CN 104074830B
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- cylinder body
- described cylinder
- cylinder
- piston
- cap
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- 229910052799 carbon Inorganic materials 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 17
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 10
- 239000004917 carbon fiber Substances 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 229910000669 Chrome steel Inorganic materials 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005524 ceramic coating Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 238000004046 wet winding Methods 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000012779 reinforcing material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 229910001060 Gray iron Inorganic materials 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002929 anti-fatigue Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The present invention relates to a kind of novel hydraulic cylinder, it comprises cylinder bottom, gray iron, piston rod, piston; Cylinder bottom is arranged at one end of cylinder body, and cylinder cap is arranged at the other end of cylinder body; Cylinder cap is passed as in cylinder body in one end of piston rod; Piston is arranged in the space that cylinder bottom, gray iron form, and piston is fixedly connected with one end of stretching in cylinder body of piston rod; Cylinder bottom is provided with and the first passage being connected in cylinder body, and first passage comprises drainage through hole and at least three branch's through holes; Cylinder cap is provided with and the second channel being connected in cylinder body, and second channel comprises annular drainage trough and at least two through holes. The invention has the beneficial effects as follows: its proportion is less than 1/4 of steel, carbon fibre composite tensile strength is generally all more than 3500Mpa, 8 times of steel, tensile modulus of elasticity is 23000 to 43000Mpa also higher than steel, thereby on intensity, rigidity, anti-fatigue performance, improves a lot than existing all-metal hydraulic jack.
Description
Technical field
The present invention relates to a kind of hydraulic cylinder, relate in particular to a kind of novel hydraulic cylinder.
Background technology
The hydraulic product of high pressure needs high-intensity construction package. Traditionally, typical travel engineering machineMany use high strength steels in tool hydraulic test, and many employings are low in to the exigent equipment of Weight controlThe alloy of density. Because the proportion of carbon fibre composite is less than 1/4 of steel, carbon fibre composite is anti-Tensile strength all more than 3500MPa, is generally 7 to 9 times of steel, tensile modulus of elasticity be 23000 to43000MPa is also higher than steel. The use of carbon fibre composite in hydraulic system, makes lightweight, strongThe design of spending high hydraulic package becomes possibility, can be widely used in engineering machinery, lathe, automobile,The industrial circle such as boats and ships and Aero-Space. Particularly along with pushing away that various countries' traffic law, energy-conserving and environment-protective requireGo out, for some large-scale engineering machinery particularly pumping height reach the light of more than 30m concreting machineryQuantize to become problem demanding prompt solution.
In the design of early stage composite hydraulic cylinder body, mainly use carbon fibre composite layer as increasingStrong layer, to reduce the quality of metal parts, still plays the still metal of main carrying effect, and this just makesFurther loss of weight is restricted.
Loss of weight just means lower energy consumption, thereby saves power, improves the economy of equipment. Meanwhile,The hydraulic package that this is lightweight, structure is strong has especially huge application to dive in aerospace fieldPower.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of novel hydraulic cylinder, solves prior art notFoot.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of novel hydraulic cylinder, it comprises cylinderThe end, gray iron, piston rod, piston; Described cylinder bottom is arranged at one end of described cylinder body, described cylinderLid is arranged at the other end of described cylinder body; Described cylinder cap is passed as for described cylinder body in one end of described piston rodIn; Described piston is arranged in the space that described cylinder bottom, gray iron form, and described piston withOne end of stretching in described cylinder body of described piston rod is fixedly connected with; Described cylinder bottom is provided with and described cylinder bodyThe first passage being inside connected, described first passage comprises drainage through hole and at least three branch's through holes; InstituteState cylinder cap and be provided with and the second channel being connected in described cylinder body, described second channel comprises annular drainageGroove and at least two through holes; Described cylinder body is taking intensity as the carbon fibre precursor that is greater than 3700MPa is as enhancingMaterial, thermosetting resin are matrix, adopt carbon fiber winding to be shaped to the technique of carbon fibre composite layerMake; The high-strength aluminum alloy that described cylinder bottom, piston, cylinder cap are greater than 650MPa by intensity is made,Described in it, the material of piston rod is Ying Zhi Du Chrome steel.
Described carbon fiber winding moulding process, refers to and adopts carbon fiber wet winding moulding process, specifically:By after the collection of filaments or cotton yarn tape impregnation, under tension force control, be directly wound on core.
Described thermosetting resin adopts phenolic resins or epoxy resin M03 adhesive, and it is compound at carbon fiberMass ratio in material layer is 30 to 45%.
Described carbon fibre composite layer, its winding angle is 35 to 85 °, glass transition temperature is largeIn 110 DEG C, curing degree is greater than 96%.
It is 0.15 to 0.34 μ m that the inwall of described cylinder body makes its surface roughness Ra value through surface treatment,Surface treatment method is: first roughening treatment is carried out in carbon fibre composite layer surface, then at alligatoring tableFace spray metal bottom, finally forms ceramic coating at metal back layer surface spraying ceramic powders.
On described cylinder bottom and cylinder cap, pass through annular knurl processing with the flute surfaces of cylinder body coupling part, and at cylinder bodyCarry out when bonding, remove the metal oxide layer of flute surfaces on cylinder bottom and cylinder cap with nitric acid or hydrofluoric acid, withImprove bonding strength.
The invention has the beneficial effects as follows: process this carbon fibre because cylinder body adopts carbon fibre compositeDimension composite is a kind of new material of mechanical property excellence, and its proportion is less than 1/4 of steel, carbon fiberComposite material tensile strength all more than 3500Mpa, is generally 8 times of steel, and tensile modulus of elasticity is23000 to 43000Mpa also higher than steel, thereby more complete than existing on intensity, rigidity, anti-fatigue performanceMetal hydraulic oil cylinder improves a lot.
Further: the outer surface of described cylinder body passes through spraying one deck aromatic polyester fibrous material figure layer, in caseOnly cylinder body is subject to the effect of external force.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example is only for explaining thisInvention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of novel hydraulic cylinder, it comprises cylinder bottom 1, cylinder body 2, cylinder cap 3, piston rod4, piston 5; Described cylinder bottom 1 is arranged at one end of described cylinder body 2, and described cylinder cap 3 is arranged at described cylinderThe other end of body 2; Described cylinder cap 3 is passed as in described cylinder body 2 in one end of described piston rod 4; InstituteState piston 5 and be arranged in the space that described cylinder bottom 1, cylinder body 2, cylinder cap 3 form, and described piston 5Be fixedly connected with the one end in the described cylinder body 2 of stretching into of described piston rod 4. Described cylinder bottom 1 be provided withThe first passage being connected in described cylinder body 2, described first passage comprises drainage through hole 6 and at least threeBranch's through hole 9; Described cylinder cap 3 is provided with and the second channel being connected in described cylinder body 2, and describedTwo passages comprise annular drainage trough 7 and at least two through holes 8.
Described cylinder body 2 is taking intensity as the carbon fibre precursor that is greater than 3700MPa is as reinforcing material, thermosettingResin is matrix, and the technique that adopts carbon fiber winding to be shaped to carbon fibre composite layer is made; Described cylinderThe high-strength aluminum alloy that the end 1, piston 5, cylinder cap 3 are greater than 650MPa by intensity is made, work described in itThe material of stopper rod 4 is Ying Zhi Du Chrome steel.
Described carbon fiber winding moulding process, refers to and adopts carbon fiber wet winding moulding process, specifically:By after the collection of filaments or cotton yarn tape impregnation, under tension force control, be directly wound on core. Also can described carbonSystem of Filament Winding Process, refers to and adopts carbon fiber dry method winding shaping process, specifically: adopt processPreimpregnation yarn or the band of pre-dipping process are wound into core through thermoplastic on wrapping machine to viscous stateUpper, then through curing, the demoulding, obtain goods.
Described thermosetting resin adopts phenolic resins or epoxy resin M03 adhesive, and it is compound at carbon fiberMass ratio in material layer is 30 to 45%.
Described carbon fibre composite layer, its winding angle is 35 to 85 °, glass transition temperature is largeIn 110 DEG C, curing degree is greater than 96%.
It is 0.15 to 0.34 that the inwall of described cylinder body 2 makes its surface roughness Ra value through surface treatmentμ m, surface treatment method is: first roughening treatment is carried out in carbon fibre composite layer surface, then existCoarse surface spray metal bottom, finally forms ceramic coating at metal back layer surface spraying ceramic powders.
On cylinder bottom 1 and cylinder cap 3, pass through annular knurl processing with the flute surfaces of cylinder body 2 coupling parts, and at cylinderBody 2 carries out when bonding, removes the metal oxygen of flute surfaces on cylinder bottom 1 and cylinder cap 3 with nitric acid or hydrofluoric acidChange layer, to improve bonding strength.
The outer surface of described cylinder body 2 is by spraying one deck aromatic polyester fibrous material figure layer, to prevent cylinder body2 are subject to the effect of external force.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, not all in the present inventionSpirit and principle within, any amendment of doing, be equal to replacement, improvement etc., all should be included in thisWithin bright protection domain.
Claims (2)
1. a novel hydraulic cylinder, is characterized in that: comprise cylinder bottom (1), cylinder body (2), cylinder cap (3),Piston rod (4), piston (5); Described cylinder bottom (1) is arranged at one end of described cylinder body (2), instituteState the other end that cylinder cap (3) is arranged at described cylinder body (2); One end of described piston rod (4) is passedDescribed cylinder cap (3) is as in described cylinder body (2); Described piston (5) be arranged at described cylinder bottom (1),In the space that cylinder body (2), cylinder cap (3) form, and described piston (5) and described piston rod (4)One end of stretching in described cylinder body (2) be fixedly connected with;
Described cylinder bottom (1) is provided with and the first passage being connected in described cylinder body (2), described firstPassage comprises drainage through hole (6) and at least three branch's through holes (9); Described cylinder cap (3) is provided withWith the second channel being connected in described cylinder body (2), described second channel comprises annular drainage trough (7)At least two through holes (8);
Described cylinder body (2) is taking intensity as the carbon fibre precursor that is greater than 3700MPa is as reinforcing material, warmThermosetting resin is matrix, and the technique that adopts carbon fiber winding to be shaped to carbon fibre composite layer is made;
Described cylinder bottom (1), piston (5), cylinder cap (3) are greater than the high strength of 650MPa by intensityAluminium alloy is made, and the material of piston rod described in it (4) is Ying Zhi Du Chrome steel;
Described carbon fiber winding moulding process, refers to and adopts carbon fiber wet winding moulding process, specifically:By after the collection of filaments or cotton yarn tape impregnation, under tension force control, be directly wound on core;
Described thermosetting resin adopts phenolic resins or epoxy resin M03 adhesive, and it is compound at carbon fiberMass ratio in material layer is 30 to 45%;
Described carbon fibre composite layer, its winding angle is 35 to 85 °, glass transition temperature is largeIn 110 DEG C, curing degree is greater than 96%;
It is 0.15 to 0.34 that the inwall of described cylinder body (2) makes its surface roughness Ra value through surface treatmentμ m, surface treatment method is: first roughening treatment is carried out in carbon fibre composite layer surface, then existCoarse surface spray metal bottom, finally forms ceramic coating at metal back layer surface spraying ceramic powders;
Described cylinder bottom (1) and cylinder cap (3) flute surfaces process upper and cylinder body (2) coupling part is rolledFlower is processed, and carries out when bonding at described cylinder body (2), removes described cylinder bottom (1) with nitric acid or hydrofluoric acidAnd the metal oxide layer of the upper flute surfaces of cylinder cap (3), to improve bonding strength.
2. a kind of novel hydraulic cylinder according to claim 1, is characterized in that: described cylinder body (2)Outer surface by spraying one deck aromatic polyester fibrous material figure layer, outside preventing that described cylinder body (2) is subject toThe effect of power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289511.XA CN104074830B (en) | 2014-06-25 | 2014-06-25 | A kind of novel hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289511.XA CN104074830B (en) | 2014-06-25 | 2014-06-25 | A kind of novel hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074830A CN104074830A (en) | 2014-10-01 |
| CN104074830B true CN104074830B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410289511.XA Active CN104074830B (en) | 2014-06-25 | 2014-06-25 | A kind of novel hydraulic cylinder |
Country Status (1)
| Country | Link |
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| CN (1) | CN104074830B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930998A (en) * | 2017-05-18 | 2017-07-07 | 武汉科技大学 | A kind of enhanced lightweight hydraulic cylinder of carbon fibre composite |
| CN112324743B (en) * | 2020-11-19 | 2022-02-22 | 北京航空航天大学 | Lightweight piston |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003297A (en) * | 1975-03-28 | 1977-01-18 | Du-Al Manufacturing Company | Hydraulic cylinder |
| JPS60122005U (en) * | 1984-01-27 | 1985-08-17 | エスエムシ−株式会社 | Cylinder with fluid leak prevention mechanism |
| JP3786620B2 (en) * | 2002-04-05 | 2006-06-14 | シーケーディ株式会社 | Actuator |
| JP2008256157A (en) * | 2007-04-09 | 2008-10-23 | Fuji Car Mfg Co Ltd | Fluid pressure cylinder |
| CN201982406U (en) * | 2010-07-12 | 2011-09-21 | 无锡市长江液压缸厂 | Short-range pressure-retaining high-pressure heavy-duty hydraulic cylinder with built-in linear-displacement sensor |
| CN102720721A (en) * | 2012-07-02 | 2012-10-10 | 江苏恒神纤维材料有限公司 | Carbon fiber composite material reinforcing hydraulic oil cylinder |
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2014
- 2014-06-25 CN CN201410289511.XA patent/CN104074830B/en active Active
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| Publication number | Publication date |
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| CN104074830A (en) | 2014-10-01 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pang Xianjin Inventor before: Zhou Kaixiong |
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Effective date of registration: 20160414 Address after: 702, room 1, unit 10, Yongqing square, Gongshu District, Zhejiang, Hangzhou 310015, China Applicant after: Pang Xianjin Address before: 541002 Guilin in the Guangxi Zhuang Autonomous Region District of Xiangshan City, New South Road Applicant before: Zhou Kaixiong |
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Effective date of registration: 20170615 Address after: 072450 Wangdu County Industrial Park, Hebei, Baoding Patentee after: Hebei Kane Electromechanical Equipment Co.,Ltd. Address before: 702, room 1, unit 10, Yongqing square, Gongshu District, Zhejiang, Hangzhou 310015, China Patentee before: Pang Xianjin |