CN107514415A - A kind of stainless steel plate nut and bolt and its installation method - Google Patents
A kind of stainless steel plate nut and bolt and its installation method Download PDFInfo
- Publication number
- CN107514415A CN107514415A CN201710804469.4A CN201710804469A CN107514415A CN 107514415 A CN107514415 A CN 107514415A CN 201710804469 A CN201710804469 A CN 201710804469A CN 107514415 A CN107514415 A CN 107514415A
- Authority
- CN
- China
- Prior art keywords
- bolt
- stainless steel
- plate nut
- steel plate
- nut
- Prior art date
- 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.)
- Pending
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 35
- 239000010935 stainless steel Substances 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 18
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 8
- 238000011900 installation process Methods 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229940099259 vaseline Drugs 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000011007 installation qualification Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention belongs to mechanical assembly technique, and in particular to a kind of stainless steel plate nut and bolt and its installation method.Stainless steel plate nut of the present invention, using the stainless steels of 1Gr17Ni2 as matching bolt material with it, wherein, nut inner thread part is coated with layer of molybdenum-disulfide.The present invention passes through substantial amounts of engineer testing, find out stainless steel material plate nut, bolt manufacture, the key parameter of installation, pass through the selection of material and the control of key parameter, effectively eliminate the corrosion phenomena of plate nut, solve the low technical barrier of plate nut installation qualification rate, aircraft maintenance lid installation quality can be substantially improved, there is significant technological progress relative to prior art.
Description
Technical field
The invention belongs to mechanical assembly technique, and in particular to a kind of stainless steel plate nut and bolt and its installation method.
Background technology
Plate nut and bolt are conventional assembling fastener, are widely used in mechanical erection.In Field of Aviation Manufacturing
In, also widely applied.Maintenance such as the structural member safeguarded lid and be generally used for inside airframe or wing of aircraft,
Repair and check, there is the characteristics of regular dismounting.Therefore, aircraft maintenance lid is generally adopted by dormant bolt and supporting plate spiral shell
The mode of box thread connection, in order to dismantle.
Shown in the typical structure as accompanying drawing 1 of the dormant bolt and plate nut of aircraft maintenance lid and connection.Aircraft supporting plate
The material that nut uses is usually GB930M5-25# steel, and the material of dormant bolt generally selects 1Cr17Ni2.Both the above material
Connected mode following problem is brought in aircraft flight and manufacturing process：First, material is GB930M5-25# steel
Plate nut is influenceed in aircraft flight by temperature, humidity, and corrosion phenomena can often occur.According to real current situation, supporting plate
Nut corrosion degree is up to 100%.Second, in installation process, due to plate nut and the difference of the dormant bolt strength of materials,
Particularly 1Cr17Ni2 materials installation capability is poor, and stripped thread, the phenomenon of abrasion often occurs, causes the qualification rate that is spirally connected extremely low
Under.Prior art lacks the effective bolt and nut that disclosure satisfy that airplane hatch cover resistant to rust and installation requirement.
The content of the invention
Goal of the invention：There is provided one kind to be made up of same material, resistant tarnishing and installation qualification rate can be effectively improved
Stainless steel plate nut and bolt.
In addition, also provide the installation method of above-mentioned stainless steel plate nut and bolt.
Technical solution of the present invention：A kind of stainless steel plate nut, it is used match bolt material with it as
1Gr17Ni2 stainless steels are made.
Nut inner thread part is coated with layer of molybdenum-disulfide.
The layer of molybdenum-disulfide thickness is 0.05~0.2mm.
Hardness number after the heat treatment of nut：HRC=33~39.
The closing in size of nut is controlled between 5.50 ± 0.06mm before molybdenum disulfide is sprayed.
A kind of bolt to match with described stainless steel plate nut, it uses 1Gr17Ni2 stainless steels to be made, and in
Section is provided with ring neck groove.
Intensity level after the heat treatment of bolt：σb≥1270MPa.
A kind of installation method of stainless steel plate nut and bolt, the stainless steel plate nut use with bolt
1Gr17Ni2 stainless steels are made, and mounting torque value is：9.2+0.5N/M.
Bolt is controlled within ± 5 ° with plate nut misalignment of axe in installation process.
Bolt thread area is coated with vaseline lubricant in installation process.
Advantages of the present invention and effect：The present invention finds out stainless steel (1Gr17Ni2) material by substantial amounts of engineer testing
Material torr crab bolt, bolt manufacture, the key parameter of installation, by the selection of material and the control of key parameter, effectively disappear
Except the corrosion phenomena of plate nut, while solve the low technical barrier of plate nut installation qualification rate, aircraft can be substantially improved
Lid installation quality is safeguarded, there is significant technological progress relative to prior art.
Brief description of the drawings
Fig. 1 is aircraft wing part lid schematic diagram；
Fig. 2 is plate nut structural representation；
Fig. 3 is the closing in schematic diagram of plate nut；
Fig. 4 is bolt arrangement schematic diagram；
Fig. 5 is plate nut and bolt mounting structure schematic diagram；
Fig. 6 is Fig. 5 G-G sectional views,
Wherein, mouth frame 1, rubber seal 2, lid 3, screw 4, plate nut 5, lid interior sealing rubber slab 6, fluid sealant
7th, rubber seal 8, lid band plate 9, lid external seal rubber slab 10, fluid sealant 11, screw 12.
Specific implementation step
The present invention is described in further detail below.
Referring to Fig. 1, shown in certain aircraft wing part lid schematic diagram, some plate nuts are set around lid
With the mounting structure of bolt, with ensure lid installation sealing while, it is easy to disassemble.Lid 3 does not connect directly with mouth frame 1
Connect, rubber seal 2 is set in lid 3, compressing rubber parts seal 2 by the use of the screw 4 on lid band plate 9 is used as primary seal；
Rubber seal 2, screw 4 are set between lid 3 and mouth frame 1 by end screw rod placement rubber seal 8, the convex shoulder of lid band plate 9
XM-22 fluid sealants 7 and 11 are filled as auxiliary between both sides installation lid sealed rubber plate 6 and 10 and lid band plate 9 and mouth frame 1
Sealing.
Please refer to Fig. 2 and Fig. 3, it is respectively plate nut structural representation and closing in schematic diagram.The supporting plate spiral shell
Mother is made of stainless steel (1Gr17Ni2) material, its special hardness number up to standard after being heat-treated：HRC=33~39, beyond this
During scope, phenomenon of rupture occurs in the root of nut connect base.
The closing in size of stainless steel (1Gr17Ni2) the pullet nut spraying molybdenum disulfide solid lubricant it
Before should control between 5.50 ± 0.06mm.Closing in position seamlessly transits, no wedge angle, without inclination, as shown in Figure 3, closing in size
Measurement slide measure measures at h3/2, and profile b meets the requirements, so as to ensure bolt installation effect and quality.
The stainless steel plate nut surfaces externally and internally sprays one layer of molybdenum disulfide solid lubricant, sprays lubricant curing
The thickness control of molybdenum is between 0.05~0.15mm, used oil lubricating when being different from plain nut lubrication, and the present invention is first
It is secondary to be lubricated using fixed molybdenum disulfide, and experiment is not known by a large amount of, by thickness control between 0.05~0.15mm,
So that lubricant effect is optimal, deadlock phenomenon is effectively avoided, improves the installation matching and installation qualification rate of bolts and nuts.
Referring to Fig. 4, it is bolt arrangement schematic diagram.The bolt is dormant bolt, and stage casing sets ring neck groove, to carry
High installation capability.The bolt use with plate nut identical material, be also 1Gr17Ni2 stainless steels, the heat treatment of bolt
Intensity level afterwards：σ b >=1270MPa, bolt thread stripped thread phenomenon occurs less than the scope.
Referring to Fig. 5, when the plate nut is installed with bolt, the installation relation between each part.By substantial amounts of real
Test and grope and do not know experiment, mounting torque value in installation process is set to：9.2+0.5N/M, so as to effectively reduce screw thread damage
Wound, more than or less than the qualification rate that this torque scope can all influence bolt installation.
Ensure that dormant bolt is controlled within ± 5 ° with plate nut misalignment of axe in installation process, no person can damage fastening
The threaded portion of part；
Bolt thread area is coated with vaseline lubricant in installation process, can effectively avoid the occurrence of bolts and nuts installation
Tight puckery phenomenon.
The present invention by substantial amounts of engineer testing, find out stainless steel (1Gr17Ni2) pullet nut, bolt manufacture,
The key parameter of installation, by the selection of material and the control of key parameter, effective corrosion phenomena for eliminating plate nut,
Stripped thread, the phenomenon of abrasion are avoided the occurrence of, the low technical barrier of plate nut installation qualification rate is solved, meets aircraft maintenance mouth
The requirement of lid installation quality, has significant technological progress relative to prior art.
Claims (10)
1. a kind of stainless steel plate nut, it is characterised in that stainless using the 1Gr17Ni2 as matching bolt material with it
Steel is made.
2. a kind of stainless steel plate nut according to claim 1, it is characterised in that nut inner thread part is coated with two
Vulcanize molybdenum layer.
3. a kind of stainless steel plate nut according to claim 2, it is characterised in that the layer of molybdenum-disulfide thickness is
0.05~0.2mm.
A kind of 4. stainless steel plate nut according to claim 2, it is characterised in that the hardness after the heat treatment of nut
Value：HRC=33~39.
5. a kind of stainless steel plate nut according to claim 2, it is characterised in that the closing in size of nut is in spraying two
Controlled before molybdenum sulfide between 5.50 ± 0.06mm.
6. the bolt that a kind of stainless steel plate nut with described in claim 1 matches, it is characterised in that using 1Gr17Ni2
Stainless steel is made, and stage casing is provided with ring neck groove.
7. the bolt that stainless steel plate nut according to claim 6 matches, it is characterised in that after the heat treatment of bolt
Intensity level：σb≥1270MPa。
8. the installation method of a kind of stainless steel plate nut and bolt, it is characterised in that the stainless steel plate nut and bolt
It is made of 1Gr17Ni2 stainless steels, mounting torque value is：9.2±0.5N/M.
9. the installation method of stainless steel plate nut according to claim 8 and bolt, it is characterised in that in installation process
Bolt is controlled within ± 5 ° with plate nut misalignment of axe.
10. the installation method of stainless steel plate nut according to claim 8 and bolt, it is characterised in that installation process
Middle bolt thread area is coated with vaseline lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804469.4A CN107514415A (en) | 2017-09-08 | 2017-09-08 | A kind of stainless steel plate nut and bolt and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804469.4A CN107514415A (en) | 2017-09-08 | 2017-09-08 | A kind of stainless steel plate nut and bolt and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107514415A true CN107514415A (en) | 2017-12-26 |
Family
ID=60725287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710804469.4A Pending CN107514415A (en) | 2017-09-08 | 2017-09-08 | A kind of stainless steel plate nut and bolt and its installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107514415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115625516A (en) * | 2022-09-30 | 2023-01-20 | 陕西飞机工业有限责任公司 | Installation method of stainless steel screw nut based on 8-class platform airplane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2940495A (en) * | 1957-02-28 | 1960-06-14 | Hi Shear Rivet Tool Company | Lock nut with frangible driving portion |
| CN201650991U (en) * | 2010-05-04 | 2010-11-24 | 贵州航天精工制造有限公司 | High temperature resistant anti-vibration MJ plate nut |
| CN103307080A (en) * | 2012-03-09 | 2013-09-18 | 陕西飞机工业（集团）有限公司 | Interference bolt with technological tail rod and installation method thereof |
| CN203641229U (en) * | 2013-12-12 | 2014-06-11 | 陕西飞机工业（集团）有限公司 | Bearing sealing bolt |
| CN204175757U (en) * | 2014-10-20 | 2015-02-25 | 贵州航太精密制造有限公司 | A kind of sealed self-locking nut connection part of anti-leak |
| CN106949134A (en) * | 2017-03-30 | 2017-07-14 | 陕西飞机工业（集团）有限公司 | A kind of 1Gr17Ni2 stainless steels supporting plate fastener and its installation method |
-
2017
- 2017-09-08 CN CN201710804469.4A patent/CN107514415A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2940495A (en) * | 1957-02-28 | 1960-06-14 | Hi Shear Rivet Tool Company | Lock nut with frangible driving portion |
| CN201650991U (en) * | 2010-05-04 | 2010-11-24 | 贵州航天精工制造有限公司 | High temperature resistant anti-vibration MJ plate nut |
| CN103307080A (en) * | 2012-03-09 | 2013-09-18 | 陕西飞机工业（集团）有限公司 | Interference bolt with technological tail rod and installation method thereof |
| CN203641229U (en) * | 2013-12-12 | 2014-06-11 | 陕西飞机工业（集团）有限公司 | Bearing sealing bolt |
| CN204175757U (en) * | 2014-10-20 | 2015-02-25 | 贵州航太精密制造有限公司 | A kind of sealed self-locking nut connection part of anti-leak |
| CN106949134A (en) * | 2017-03-30 | 2017-07-14 | 陕西飞机工业（集团）有限公司 | A kind of 1Gr17Ni2 stainless steels supporting plate fastener and its installation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115625516A (en) * | 2022-09-30 | 2023-01-20 | 陕西飞机工业有限责任公司 | Installation method of stainless steel screw nut based on 8-class platform airplane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171226 |