CN204328267U - A kind of inwall has the nano bionic hydraulic tube of superslide and flexible nature - Google Patents
A kind of inwall has the nano bionic hydraulic tube of superslide and flexible nature Download PDFInfo
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- CN204328267U CN204328267U CN201420639578.7U CN201420639578U CN204328267U CN 204328267 U CN204328267 U CN 204328267U CN 201420639578 U CN201420639578 U CN 201420639578U CN 204328267 U CN204328267 U CN 204328267U
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- middle level
- pipe
- hydraulic tube
- hydraulic
- steel wire
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- 229920001971 elastomer Polymers 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 6
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 6
- 238000009954 braiding Methods 0.000 claims abstract description 4
- 230000010349 pulsation Effects 0.000 abstract description 18
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- 210000004204 blood vessel Anatomy 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
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- 239000003921 oil Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
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- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
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- 239000004945 silicone rubber Substances 0.000 description 1
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Abstract
Inwall has a nano bionic hydraulic tube for superslide and flexible nature, and this hydraulic tube is the pipe of four layers, and it is radially followed successively by internal layer, middle level A, middle level B and skin from inside to outside, and adjacent two layers is mutually bonding; Wherein said internal layer is the smooth layer adopting carbon nanotube material; Described middle level A is the braiding webmaster become with weft knit by warp; Described middle level B is steel wire network pipe; Described skin is rubber pipe.The nano coating of the utility model pipeline inner wall has obvious antifriction function, makes it rub minimum, and therefore, turbulent phenomenon reduces greatly, and the hydraulic pipe line solid liquid interation caused therefrom reduces; Pipeline inner wall flexible structure improves the effect absorbing flow pulsation and vibration, therefore, has better anti seismic efficiency.
Description
Technical field the utility model relates to a kind of hydraulic tube of hydraulic pipe line, is especially applied in the hydraulic tube of high-pressure hydraulic main pump outlet and actuator joint.
Background technique is current, along with hydraulic system is to high speed and high pressure future development, hydraulic system vibration problem is day by day serious, and the rate of fault brought and failure rate also significantly promote, and it has become and limits one of its Main Bottleneck to high speed and high pressure future development.Axial piston pump is the heart of hydraulic system, pump discharge flow pulsation is one of main source of hydraulic system vibration, and propagated by pipeline, cause down-stream system judder, absorbing pumping hole flow pulsation is the effectively mode of one reducing hydraulic system vibration, but, absorb the vibration control effect of flow pulsation, than after flow pulsation excites solid liquid interation, go to control vibration more more direct effectively, therefore, pumping hole pipeline plays vital effect in the pulsation reducing pump.Such as, the effective measures that damping larynx is the weakening of most of high-pressure hydraulic main pump outlet are installed, this mode reduces the harm that pumping hole flow pulsation brings to a certain extent, with regard to structure, damping larynx is the hydralic hose that a kind of inside is integrated with multilayer steel wire, and the elastic performance that rubber material and steel wire have can absorb vibrational energy better.In addition, hydraulic system in the course of the work, be subject to extraneous load disturbance, forced vibration can be formed in the actuator such as oil hydraulic cylinder, oil hydraulic motor, and then judder is formed in pipe-line system, be the common measures taken reducing this part vibration at actuator's high-pressure mouth installation hydralic hose and pipe attenuator.Because the material of existing hydralic hose and structure are " rigid material and elastic material intersect mixed weaving ", main dependence elastic material vibration damping, be subject to structural strength restriction, the rigidity of elastic material is larger, Absorbing Fluctuation and vibration limited in one's ability, pipe attenuator generally wraps on steel pipe or high strength sebific duct outer surface, its material and structure are " rigid material is interior; elastic material outside ", the work essence that this vibration absorber absorbs is vibrated by rubber material absorbing structure, instead of directly absorb flow pulsation, vibration control limited efficiency.
In addition, research shows, the roughness of pipeline inner wall has a direct impact channel interior fluid flow state, and when fluid skims over roughness element, the segment fluid flow between roughness element can be trapped, form tiny vortex, roughness element and therebetween trap fluid to the blocking action that flowed, thus increase the pipeline coefficient of friction resistance, and the impact causing the friction in pipeline fluid structure interaction process to be coupled increases, especially, in high-frequency range, the impact of friction coupling can become fairly obvious; During tube fluid flow at high speed, after inner wall roughness increases, the flowing state of pipeline inner fluid is more complicated, and is easy to, to unstable state development, form complicated turbulent, and then strengthen the vibration of pipeline.
At present, the braided steel wire flexible pipe being widely used in hydraulic system is made up of inner glue layer, mesoglea, one to four layer of braided steel wire enhancement layer and outer glue-line, and steel wire winding layer by layer number is more, and caliber is less, and the compression resistance of sebific duct is higher.Existing design, such as: Chinese invention patent CN1786541A discloses a kind of pressure resisting Silicon rubber hose, the material of main part of inner glue layer and outer glue-line is all silicone rubber, manufacturing process is improved by prevulcanization process, obtain the rubber hose that resistance to pressure is good, but inner diameter is little, and is suitable only for and is applied in food, pharmaceutical industry.Chinese patent CN1995791A discloses a kind of silastic hose, and this flexible pipe adopts stainless steel coil to reinforce, and hose strength is strengthened, but therefore the elasticity of flexible pipe is inhibited, and Absorbing Fluctuation is poor.US granted patent US4285534 discloses a kind of flexible pipe of Absorbing Fluctuation, these flexible pipe two ends arrange throttling material, and are provided with throttling arrangement in pipe, thus flow pulsation is inhibited, but fluid, by causing energy loss during restriction, affects efficiency.The above patent, does not all relate to and being optimized pipeline inner wall roughness.
Model utility content the purpose of this utility model be to provide a kind of copy cheetah heart to export that blood vessel structure makes is not only high pressure resistant but also can absorb the bionic type hydraulic tube of flow pulsation.
Concrete technological scheme of the present utility model is as follows:
A kind of bionic type hydraulic tube, this hydraulic tube is the pipe of four layers, and it is radially followed successively by internal layer, middle level A2, middle level B3 and skin from inside to outside, and adjacent two layers is mutually bonding; Wherein internal layer is carbon nano-tube; Described middle level A2 is the braiding webmaster that warp becomes with weft knit; Described middle level B3 is steel wire network pipe; Described skin is rubber material.The steel wire network pipe of described middle level B3, its steel wire is stainless steel steel wire or aluminum alloy steel wire or titanium alloy steel wire; The steel wire network pipe of above-mentioned middle level B3 can be 1 layer of steel wire, also can be the 1-4 layer steel wire be woven into from inside to outside.The skin be wrapped in outside the B3 steel wire network pipe of middle level is preventing rubber layer; Or outside the A2 of middle level, be provided with the common rigidity hydraulic pipe line replacing middle level B3 and preventing rubber layer, as Stainless Steel Alloy, aluminum alloy, titanium alloy pipeline.In addition, each layer of the present invention adopts has that certain viscoelastic glue is bonding to be formed, and makes each layer become as a whole, has better overall performance.
Hydraulic tube body of the present utility model can have the external diameter of 8mm to 70mm, and the thickness of 2mm to 10mm.Selecting of flexible pipe can be selected by the selecting method of general flexible pipe.
Cheetah can only need 4 second time in moment from the static state to 70 kilometers per hour of speed per hour, and in this process, cheetah heart outlet blood vessel subjects the blood flow pressure pulsation of high-frequency and high-voltage.Why cheetah heart outlet blood vessel can bear the blood flow pressure pulsation of high-frequency and high-voltage, is because cheetah heart outlet blood vessel is made up of inner membrance, middle film, adventitia three layers.Inner membrance is made up of endothelium, subendothelial layer and internal dielectric membrane.Subendothelial layer is thicker, wherein containing collagenous fibres, elastomeric fiber and a small amount of smooth muscle, and the active receiving extrinsic innervation of each cell or by the impact of hormone being diffused into each cell.Internal dielectric membrane is mutually bonding with the elastic membrane of middle film.Middle film has 40 ~ 70 layers of elastic membrane.Research finds, just because of this structure, cheetah is when strenuous exercise, although blood pressure raises suddenly in body, pulsation amplitude and frequency increase rapidly, but the slickness good due to blood vessel and viscoelasticity, make in blood flow process, on-way resistance is little, and Absorbing Fluctuation ability is strong, simultaneously when blood vessel dilatation, blood pressure raise rapidly, collagenous fibres produce very big tension force line artery and expand further, and blood vessel can not be able to be broken when pressure raises suddenly.So, copy cheetah heart export blood vessel structure, the nano bionic hydraulic tube that the utility model provides a kind of inwall to have superslide and flexible nature, this hydraulic tube divide interior, in, outer three layers.Internal layer selects minute yardstick nanometer material---and carbon nano-tube, as coating material, adopts technique for sticking that the inner wall surface of rubber material towards fluid is received at nanometer material station.Carbon nano tube surface has superslide characteristic, greatly reduces the roughness of pipeline inner wall, significantly can reduce the impact of turbulent flow, thus reduces flow pulsation.Middle level A2 is the elasticity Absorbing Fluctuation layer become with weft knit by warp, it can flow pulsation to a great extent in suction line, warp selects polyester material, the advantage of polyester material is that intensity is higher, resilience is comparatively strong, and can resist the distortion of pipeline inner wall in a big way, parallel selects polyurethane material, the advantage of polyurethane is that elasticity is strong, effectively can absorb flow pulsation, above-mentioned graticule is woven together, and can ensure that this middle level A2 has enough resiliences and high-selenium corn pulsation performance; Middle level B3 and skin select steel wire and rubber material respectively, and steel wire is wrapped up by rubber, similar to conventional hydraulic sebific duct, make rubber hose have enough intensity, and steel wire can not expose in atmosphere, avoid corrosion.
The utility model compared with prior art tool has the following advantages:
1. pipeline inner wall has superslide structure, and significantly reduce interior wall friction, therefore turbulent phenomenon reduces greatly, because this reducing the hydraulic pipe line coupled vibrations because friction coupling causes;
2. the effect absorbing flow pulsation and vibration is stronger, has better anti seismic efficiency;
3. middle level A2 of the present utility model and internal layer also can become to be integrated separately, it is embeddedly arranged on rigidity hydraulic pipe line inwall, has better Absorbing Fluctuation ability than traditional rigidity hydraulic tube.
Accompanying drawing explanation
Fig. 1 is the utility model stereochemical structure simplified schematic diagram.
Fig. 2 is that master of the present utility model looks generalized section.
Fig. 3 is media layer damage schematic diagram of the present utility model.
Embodiment is in the bionic type hydraulic tube simplified schematic diagram shown in Fig. 1, Fig. 2 and Fig. 3, and this hydraulic tube is the pipe of four layers, and it is radially followed successively by internal layer 1, middle level A2, middle level B3 and outer 4 from inside to outside, and adjacent two-layer mutual bonding; Wherein internal layer is carbon nano-tube, and described middle level A2 is the braiding webmaster taking satin weave mode to make by warp 2.1 and parallel 2.2; Paste copper based film between described internal layer and middle level A2, then internal layer is sintered on copper based film; Described middle level B3 is Stainless Steel Wire webmaster, and middle level A2 and middle level B3 is bonded together by rubber bond A (hexamethoxy methyl pyramine); Described skin is rubber pipe, and middle level B3 is bonded together by rubber bond A (hexamethoxy methyl pyramine) with outer.
Claims (1)
1. inwall has a nano bionic hydraulic tube for superslide and flexible nature, it is characterized in that: this hydraulic tube is the pipe of four layers, and it is radially followed successively by internal layer, middle level A, middle level B and skin from inside to outside, and adjacent two layers is mutually bonding; Wherein internal layer is carbon nano-tube; Described middle level A is the braiding webmaster become with weft knit by warp; Described middle level B is steel wire network pipe; Described skin is rubber pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639578.7U CN204328267U (en) | 2014-10-30 | 2014-10-30 | A kind of inwall has the nano bionic hydraulic tube of superslide and flexible nature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639578.7U CN204328267U (en) | 2014-10-30 | 2014-10-30 | A kind of inwall has the nano bionic hydraulic tube of superslide and flexible nature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328267U true CN204328267U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420639578.7U Expired - Fee Related CN204328267U (en) | 2014-10-30 | 2014-10-30 | A kind of inwall has the nano bionic hydraulic tube of superslide and flexible nature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204328267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061882A (en) * | 2017-04-21 | 2017-08-18 | 燕山大学 | A kind of multiple tube of Absorbing Fluctuation |
| CN109026726A (en) * | 2018-07-30 | 2018-12-18 | 燕山大学 | A kind of centrifugal dredge pump with bionic non-smooth surface |
-
2014
- 2014-10-30 CN CN201420639578.7U patent/CN204328267U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061882A (en) * | 2017-04-21 | 2017-08-18 | 燕山大学 | A kind of multiple tube of Absorbing Fluctuation |
| CN109026726A (en) * | 2018-07-30 | 2018-12-18 | 燕山大学 | A kind of centrifugal dredge pump with bionic non-smooth surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |