CN204756211U - Shape memory alloy system does not have flaring pipe connection spare and uses cap nut - Google Patents
Shape memory alloy system does not have flaring pipe connection spare and uses cap nut Download PDFInfo
- Publication number
- CN204756211U CN204756211U CN201520387209.8U CN201520387209U CN204756211U CN 204756211 U CN204756211 U CN 204756211U CN 201520387209 U CN201520387209 U CN 201520387209U CN 204756211 U CN204756211 U CN 204756211U
- Authority
- CN
- China
- Prior art keywords
- cap nut
- duan
- path
- pipe joint
- length
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 title abstract 3
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 4
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Joints With Pressure Members (AREA)
Abstract
The utility model provides a shape memory alloy system does not have flaring pipe connection spare and uses cap nut, including shape memory alloy system sleeve pipe, cap nut, the pipe, the nut is by greatly, two sections companies of path are whole, the peripheral face of big footpath section is the hexagonal face, the external diameter of the corresponding face of big footpath two parallels of section is S, cap nut's total length is L, the length of path section is L1, the length G of path section terminal surface to hole step department, the length r in internal thread hole, path duan duan's external diameter D1, path duan duan's internal thread aperture D, the interior aperture d1 of the no thread end of big footpath section, big footpath duan duan dwindles mouth opening footpath d, there is conical surface angle in toper step hole between d1 and the d. This cap nut advantage: the structure is compacter, and weight is light, be particularly useful for aerospace equipment. Fatigue resistance can be good, realizes firm connection and avoid stress concentration, and guarantee to connect the leakproofness, simple frock can realize, saves a large amount of assembly fixture expenses, and easy operation is easily capable, can guarantee assembly quality, productivity gain.
Description
Technical field
The utility model a kind ofly relates to marmem system that aerospace equipment and other machinery are connected with hydraulic pipe without enlarging pipe joint element cap nut.
Background technique
Current China is owing to greatly developing aerospace industry technology, the tubes connection mode that the hydraulic system of aerospace equipment and other machinery, pressure system and other fluid delivery systems adopt reliability higher, more convenient in a large number, for ensure between these conduits quick, reliably connect, need design be suitable for link.This marmem system is exactly one of them without enlarging pipe joint element cap nut.
Model utility content
The purpose of this utility model is to provide a kind of marmem system without enlarging pipe joint element cap nut, the principle of marmem rider link is: (diameter producing distortion pipe box endoporus under low temperature becomes large to utilize the characteristic of marmem, under normal temperature, pipe box endoporus returns to the original form is that hole contracted diameter diminishes) pipe box manufactured with marmem is deposited with liquid nitrogen bottle, be arranged on immediately on conduit after utilizing stock clip to be taken out by pipe box during assembling, the marmem characteristic that aperture is shunk at normal temperatures is utilized conduit and pipe box to be linked together securely, pressure suffered is herein larger, the better reliability of sealing.The connection of pipe box and pipe joint will rely on the screw thread of cap nut and the threaded engagement of pipe joint, and cap nut one end compresses pipe box and makes it to be formed at potted line place close contact with pipe joint to seal.
This cap nut formation comprises large, path two sections, the peripheral surface of large footpath section is hex surface, S is the external diameter of the parallel corresponding hex surface of large footpath section two, L is the total length of cap nut, L1 is the length of path section, G is the length of path section end face to endoporus step place, r is the length of interior threaded hole, D1 is the external diameter of path Duan Duan, the internal thread aperture of D path Duan Duan, d1 is the internal orifice dimension of large footpath section without threaded end, d is that large footpath Duan Duan reduces oral pore footpath, type conical bench hole frustoconical bevel angle between d1 and d is 45 ° ± 30 ', the outer chamfer surface of hexagonal end is 2-15 °, the interior hole end surface angle of falling face of hexagonal end is 0.2 × 45 °, the outer chamfer surface of path Duan Duan is 0.4 × 45 °.
outwardnamely the regarding sizes that the screw thread specification of cover nut will assist the physical dimension of cap nut will fully take into account pipe box and pipe joint with the screw thread specification of the pipe joint of same size conduit mutually transfers to other localities; One end of cap nut will be coordinated mutually with the regarding sizes of pipe box, can compress pipe box and pipe joint seals at potted line place.
Marmem rider connects cap nut assembly and has the following advantages:
1) marmem pipe joint physical dimension relative to flared type pipe joint element and the physical dimension without the pipe joint of flared type pipe joint element compacter, structure weight is comparatively light, this is especially very applicable for aerospace equipment.
2) conduit tube component anti-fatigue performance is better: owing to being shrink by internal diameter of pipe joint produce larger pressure to conduit thus realize firmly being connected avoiding stress and concentrating between pipe joint with conduit, improve the anti-fatigue performance of conduit tube component.
3) sealing ensureing to connect is more prone to:
What a) marmem free flow coupling conduit tube component connected sealing place generation is along the sealing of catheter outer diameter Cylindrical Surfaces Contact, is more prone to realize sealing.
B) marmem free flow coupling conduit tube component, what when catheter interior applies working pressure, conduit and pipe joint were subject to is outside tension force, and this tension force to sealing advantageously.
Because the preassembly of pipe joint and conduit utilizes the characteristic of marmem to carry out, only can need realize by liquid nitrogen bottle and stock clip and simple frock during assembling, the expense of a large amount of assembly tooling can be saved, operation is simple is conducive to ensureing assembly quality and assembling progress, boosts productivity.
Accompanying drawing explanation
Fig. 1 is that marmem system is without enlarging pipe joint element anatomical connectivity view.
Fig. 2 is the sectional side view of marmem system without enlarging pipe joint element cap nut.
Fig. 3 is the plan view of marmem system without enlarging pipe joint element cap nut.
In figure: 1-cap nut, 2-marmem system without the Flaring Pipe Sleeves, 3-conduit, S-is the external diameter of the parallel corresponding hex surface of large footpath section two, L-is the total length of cap nut, L1-is the length of path section, and G-is the length of path section end face to endoporus step place, and r-is the length of interior threaded hole, D1-is the external diameter of path Duan Duan, the internal thread aperture of D-path Duan Duan, d1-is the internal orifice dimension of large footpath section without threaded end, and d-is that large footpath Duan Duan reduces oral pore footpath.
Embodiment
Marmem system described in the utility model is without enlarging pipe joint element cap nut, its structure comprises: marmem system is without the Flaring Pipe Sleeves 2, link cap nut 1, conduit 3, cap nut 1 is by greatly, path two sections is linked as an entirety, the peripheral surface of large footpath section is hex surface, S is the external diameter of the parallel corresponding hex surface of large footpath section two, L is the total length of cap nut, L1 is the length of path section, G is the length of path section end face to endoporus step place, r is the length of interior threaded hole, D1 is the external diameter of path Duan Duan, the internal thread aperture of D path Duan Duan, d1 is the internal orifice dimension of large footpath section without threaded end, d is that large footpath Duan Duan reduces oral pore footpath, type conical bench hole between d1 to d has frustoconical bevel angle to be 45 ° ± 30 ', the outer chamfering of hexagonal end face is 2-15 °, the endoporus end chamfer of hexagonal end is 0.2 × 45 °, the outer chamfering of path section end face is 0.4 × 45 °.
The screw thread specification of cap nut is mutually harmonious with the screw thread specification of the pipe joint of same size conduit, and the physical dimension size of cap nut will be coordinated mutually with the regarding sizes of pipe box and pipe joint; One end of cap nut will be coordinated mutually with the regarding sizes of pipe box, can compress pipe box and pipe joint seals at potted line place.
Cap nut material is selected according to following situations:
1) pipe box and conduit assemble is utilize the internal diameter at low temperatures of marmem pipe joint to become large, when recovering normal temperature, internal diameter diminishes and makes pipe box produce the method for larger pressure to conduit conduit and pipe box to be linked together securely, and this just requires that the material of cap nut has at a lower temperature (lower than-50 DEG C) and embrittlement do not occur.
2) material of cap nut should have the intensity of hydraulic system, pneumatic system and other fluid system conduits being not less than aerospace equipment and other machinery.
3) hydraulic system of aerospace equipment and other machinery, pneumatic system and other fluid system marmem systems are generally without the material category of enlarging pipe joint element pipe box: nitinol.This just requires that the material of cap nut will adapt with this material and is mutual close contact and under certain axial force, does not produce contact corrosion (also claiming difference in Electrode Potential to corrode).
Claims (4)
1. a marmem system is without enlarging pipe joint element cap nut, it is characterized in that: its structure comprises: marmem tubulation cover (2), link cap nut (1), conduit (3), cap nut (1), by greatly, path two sections is linked as an entirety, the peripheral surface of large footpath section is hex surface, the obverse external diameter (S) that large footpath section two is parallel, the total length (L) of cap nut, the length (L1) of path section, path section end face is to the length (G) at endoporus step place, the length (r) of interior threaded hole, the external diameter (D1) of path Duan Duan, the internal thread aperture (D) of path Duan Duan, large footpath section is without the internal orifice dimension d1 of threaded end, large footpath Duan Duan reduces oral pore footpath d, there is frustoconical bevel angle in type conical bench hole between d1 to d.
2. marmem system according to claim 1 is without enlarging pipe joint element cap nut, it is characterized in that: the type conical bench hole frustoconical bevel angle between d1 to d is 45 ° ± 30 ', the outer chamfering of hexagonal end face is 2-15 °, the endoporus end chamfer of hexagonal end is 0.2 × 45 °, and the outer chamfering of path section end face is 0.4 × 45 °.
3. marmem system according to claim 1 is without enlarging pipe joint element cap nut, it is characterized in that: the screw thread specification of cap nut is mutually harmonious with the screw thread specification of the pipe joint of same size conduit, and the physical dimension size of cap nut will be coordinated mutually with the regarding sizes of pipe box and pipe joint; One end of cap nut will be coordinated mutually with the regarding sizes of pipe box.
4. marmem system according to claim 1 is without enlarging pipe joint element cap nut, it is characterized in that: select cap nut material requirements to have and embrittlement does not occur under lower than-50 DEG C of low temperatures, the material category of this cap nut selects nitinol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520387209.8U CN204756211U (en) | 2015-06-08 | 2015-06-08 | Shape memory alloy system does not have flaring pipe connection spare and uses cap nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520387209.8U CN204756211U (en) | 2015-06-08 | 2015-06-08 | Shape memory alloy system does not have flaring pipe connection spare and uses cap nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204756211U true CN204756211U (en) | 2015-11-11 |
Family
ID=54470916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520387209.8U Expired - Fee Related CN204756211U (en) | 2015-06-08 | 2015-06-08 | Shape memory alloy system does not have flaring pipe connection spare and uses cap nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204756211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748721A (en) * | 2019-09-03 | 2020-02-04 | 宜宾三江机械有限责任公司 | Non-flared catheter assembly and method of manufacturing the same |
| CN111032244A (en) * | 2017-06-18 | 2020-04-17 | 福斯工业公司 | Composite fluid joint assembly |
-
2015
- 2015-06-08 CN CN201520387209.8U patent/CN204756211U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111032244A (en) * | 2017-06-18 | 2020-04-17 | 福斯工业公司 | Composite fluid joint assembly |
| CN111032244B (en) * | 2017-06-18 | 2022-06-14 | 福斯工业公司 | Composite fluid joint assembly |
| CN110748721A (en) * | 2019-09-03 | 2020-02-04 | 宜宾三江机械有限责任公司 | Non-flared catheter assembly and method of manufacturing the same |
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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: 20151111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |