CN111503113A - Corrosion-resistant high-strength hexagon bolt - Google Patents
Corrosion-resistant high-strength hexagon bolt Download PDFInfo
- Publication number
- CN111503113A CN111503113A CN202010493811.5A CN202010493811A CN111503113A CN 111503113 A CN111503113 A CN 111503113A CN 202010493811 A CN202010493811 A CN 202010493811A CN 111503113 A CN111503113 A CN 111503113A
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- China
- Prior art keywords
- groove
- gasket
- corrosion
- bolt
- resistant high
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 33
- 230000007797 corrosion Effects 0.000 title claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 230000008602 contraction Effects 0.000 claims abstract description 15
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- 238000005728 strengthening Methods 0.000 claims description 8
- 230000003449 preventive effect Effects 0.000 description 5
- 239000002775 capsule Substances 0.000 description 4
- 238000011900 installation process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
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- 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
- F16B33/008—Corrosion preventing means
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
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- 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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a corrosion-resistant high-strength hexagon bolt, which comprises a bolt body and a gasket, wherein the bolt body further comprises a bolt head, a stud and a reinforcing rib, the stud consists of a contraction section close to the bottom of the bolt head and a thread section far away from the bottom of the bolt head, a plurality of side grooves are formed in the outer side wall of the thread section, the reinforcing rib is arranged in each side groove, the gasket further comprises an inner side elastic washer and an outer side anti-loosening gasket, the inner side elastic washer is nested on the contraction section, and the outer side anti-loosening gasket is connected with the stud through the inner side elastic washer.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of fasteners, in particular to a corrosion-resistant high-strength hexagon bolt.
[ background of the invention ]
High-strength bolts are bolts made of high-strength steel or requiring a large preload force, and are referred to as high-strength bolts. The high-strength bolt is mainly used for connecting bridges, steel rails, high-pressure equipment and ultrahigh-pressure equipment. The fracture of such a bolt is often brittle. A high-strength bolt applied to ultrahigh-pressure equipment needs to be applied with larger prestress in order to ensure the sealing of a container, a high-strength hexagon bolt is one kind of high-strength bolt, plates of a connecting plate are clamped by the large screwing prestress in a bolt rod to generate large friction force enough to improve the integrity and rigidity of connection, therefore, the high-strength hexagon bolt belongs to permanent connection, the corrosion resistance of the bolt and the structural strength of the bolt need to be considered in the design process, the conventional method is to perform proper heat treatment after the bolt is manufactured, and coat a corrosion resistant layer on the surface to improve the structural strength and the corrosion resistance of the bolt, however, after long-term service, the corrosion resistant layer on the surface gradually loses the corrosion resistant effect, so that the bolt is rusted, the structural strength is reduced, and the bolt connection is finally brittle and fails to break, therefore, it is necessary to provide a corrosion-resistant high-strength hexagon bolt.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a corrosion-resistant high-strength hexagon bolt which is simple in structure and reasonable in design, can effectively improve the structural strength and corrosion resistance of the bolt, and can ensure the stability and reliability of bolt connection for a long time.
In order to achieve the purpose, the invention provides a corrosion-resistant high-strength hexagon bolt, which comprises a bolt body and a gasket, wherein the bolt body further comprises a screw head, a stud and a reinforcing rib, the stud consists of a contraction section close to the bottom of the screw head and a screw thread section far away from the bottom of the screw head, a plurality of side grooves are formed in the outer side wall of the screw thread section, the gasket further comprises an inner side elastic washer and an outer side anti-loosening gasket, the inner side elastic washer is nested on the contraction section, the outer side anti-loosening gasket is connected with the stud through the inner side elastic washer, a plurality of first open grooves are formed in the top surface of the inner side elastic washer, a through groove is formed in the center of the bottom of each first open groove, the reinforcing rib penetrates through the through groove and is embedded into the side grooves, through holes communicated with the outer side wall of the inner side elastic washer are formed in the groove walls of the first open grooves and the through, the notch of the second open slot is opposite to the through hole, a plurality of elliptical bag bodies are arranged inside the second open slot, and anti-rust oil is arranged inside the elliptical bag bodies.
Preferably, the diameter of the contraction section is 0.75-0.8 times of the diameter of the thread section, and the length of the contraction section is the same as the thickness of the inner elastic gasket.
Preferably, a coordination ring groove is arranged on the contact surface of the outer side anti-loose gasket and the inner side elastic gasket, the minimum diameter of the coordination ring groove is larger than the diameter of the thread section, the outer side wall of the outer side anti-loose gasket is arc-shaped, and the bottom surface of the outer side anti-loose gasket is an arc-shaped inclined surface with anti-skid threads.
Preferably, the number of the reinforcing ribs is 6, the heads of the reinforcing ribs are regular hexagonal prisms, the rods of the reinforcing ribs are regular triangular prisms, and the shapes of the first open grooves and the through grooves correspond to the sections of the heads and the rods of the reinforcing ribs respectively.
Preferably, the side grooves are regular triangular prism-shaped open grooves, and the size of each side groove is larger than the size of the rod part of each reinforcing rib.
Preferably, the second opening groove is an annular opening groove, and the groove bottom of the second opening groove is U-shaped.
Preferably, the bolt body and the gasket are coated with corrosion resistant layers on the surfaces.
The invention has the beneficial effects that:
1. according to the invention, the reinforcing ribs, the side grooves, the first open grooves and the through grooves are arranged, and the plurality of reinforcing ribs are utilized to reinforce the thread section of the stud, so that the structural strength of the stud is improved, and the possibility of fracture of the stud is reduced;
2. according to the invention, by arranging the elliptical bag body with the rust preventive oil inside, the second open slot is continuously extruded in the bolt installation process, so that the elliptical bag body is crushed, the rust preventive oil flows into the first open slot and the through slot of the inner elastic washer along the through hole, secondary rust preventive treatment is carried out on the reinforcing ribs and the thread section, and the corrosion resistance of the bolt main body is further improved by matching with the corrosion resistant layer;
3. according to the invention, the mode of arranging the second opening groove with the U-shaped groove bottom in the outer anti-loose gasket is matched with the arc inclined plane with the anti-skid grains at the bottom of the outer anti-loose gasket, and in the installation process of the bolt, the U-shaped second opening groove generates a reaction force under the extrusion action, so that the pressing force between the arc inclined plane of the outer anti-loose gasket and the surface of the workpiece is enhanced, the friction force between the outer anti-loose gasket and the workpiece is further increased, and the possibility of loosening the bolt is reduced.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a corrosion-resistant high-strength hexagon bolt according to the present invention;
FIG. 2 is a cross-sectional view of a threaded section in a corrosion-resistant high strength hex bolt of the present invention;
FIG. 3 is an enlarged schematic view of the position A of a corrosion-resistant high-strength hexagon bolt according to the present invention;
fig. 4 is a schematic structural view of an inner side elastic washer in the corrosion-resistant high-strength hexagon bolt of the present invention.
In the figure: 1-bolt body, 2-gasket, 21-inner side elastic washer, 211-first open slot, 212-through slot, 213-through hole, 22-outer side anti-loose gasket, 221-second open slot, 222-elliptical capsule, 223-anti-rust oil, 224-coordination ring slot, 3-screw head, 4-stud, 41-contraction section, 42-screw section, 43-side slot and 5-reinforcing rib.
[ detailed description ] embodiments
Referring to the attached drawings, the corrosion-resistant high-strength hexagon bolt of the invention comprises a bolt body 1 and a gasket 2, wherein the bolt body 1 further comprises a bolt head 3, a stud 4 and a reinforcing rib 5, the stud 4 consists of a contraction section 41 close to the bottom of the bolt head 3 and a thread section 42 far away from the bottom of the bolt head 3, a plurality of side grooves 43 are arranged on the outer side wall of the thread section 42, the gasket 2 further comprises an inner side elastic washer 21 and an outer side anti-loose gasket 22, the inner side elastic washer 21 is nested on the contraction section 41, the outer side anti-loose gasket 22 is connected with the stud 4 through the inner side elastic washer 21, a plurality of first open grooves 211 are arranged on the top surface of the inner side elastic washer 21, a through groove 212 is arranged at the center of the groove bottom of the first open groove 211, the reinforcing rib 5 penetrates through the through groove 212 and is embedded into the side grooves 43, through holes 213 communicated with the outer side wall of the inner side elastic washer 21, a second opening groove 221 is formed in the joint surface of the outer anti-loose gasket 22 and the inner elastic washer 21, the notch of the second opening groove 221 is opposite to the through hole 213, a plurality of elliptical bag bodies 222 are arranged inside the second opening groove 221, and anti-rust oil 223 is arranged inside the elliptical bag bodies 222.
Wherein the diameter of the contraction section 41 is 0.75-0.8 times of the diameter of the thread section 42, and the length of the contraction section 41 is the same as the thickness of the inner elastic washer 21.
The contact surface of the outer side anti-loose gasket 22 and the inner side elastic washer 21 is provided with a coordination ring groove 224, the minimum diameter of the coordination ring groove 224 is larger than the diameter of the threaded section 42, the outer side wall of the outer side anti-loose gasket 22 is arc-shaped, and the bottom surface of the outer side anti-loose gasket 22 is an arc inclined surface with anti-skid threads.
Wherein, the quantity of strengthening rib strip 5 is 6, the head of strengthening rib strip 5 is regular hexagonal prism, the pole portion of strengthening rib strip 5 is regular triangular prism, the shape of first open slot 211 and logical groove 212 corresponds with the head and the pole portion cross-section of strengthening rib strip 5 respectively.
The side grooves 43 are regular triangular prism-shaped open grooves, and the size of the side grooves 43 is larger than the size of the rod part of the reinforcing rib 5.
The second opening groove 221 is an annular opening groove, and the groove bottom of the second opening groove 221 is U-shaped.
Wherein, the surfaces of the bolt body 1 and the gasket 2 are coated with corrosion resistant layers.
The working process of the invention is as follows:
during the working process of the corrosion-resistant high-strength hexagon bolt, the reinforcing rib 5 can be firstly installed on the inner side elastic washer 21 through the first opening groove 211 and the through groove 212, then the inner side elastic washer 21 is installed on the contraction section 41, the rod part of the reinforcing rib 5 is embedded into the side groove 43, then the coordination ring groove 224 of the outer side anti-loosening washer 22 is aligned with the inner side elastic washer 21, finally the bolt body 1 and the washer 2 are installed in a station and are installed and fixed through an installation tool, in the fastening process, the elliptical capsule body 222 is broken by times, the rust-proof oil 223 in the inner part seeps out, flows through the through hole 213 and is finally coated on the reinforcing rib 5 and the thread section.
Compared with the prior art, the reinforcing ribs 5, the side grooves 43, the first opening grooves 211 and the through grooves 212 are arranged, the plurality of reinforcing ribs 5 are used for reinforcing the thread sections 42 of the stud 4, the structural strength of the stud 4 is improved, and the possibility of fracture of the stud 4 is reduced; in the invention, by arranging the elliptical capsule body 222 with the rust preventive oil 223 inside, the second opening groove 221 is continuously extruded in the bolt installation process, so that the elliptical capsule body 222 is extruded to be broken, the rust preventive oil 223 flows into the first opening groove 211 and the through groove 212 of the inner elastic washer 21 along the through hole 212, the reinforcing ribs 5 and the thread section 42 are subjected to secondary rust prevention treatment, and the corrosion resistance of the bolt main body is further improved by matching with a corrosion resistant layer; according to the invention, the U-shaped second opening groove 221 is arranged in the outer anti-loose gasket 22, and is matched with the arc inclined plane with the anti-skid grains at the bottom of the outer anti-loose gasket 22, so that in the installation process of the bolt, the U-shaped second opening groove 221 generates a reaction force under the extrusion action, the pressing force between the arc inclined plane of the outer anti-loose gasket 22 and the surface of the workpiece is enhanced, the friction force between the outer anti-loose gasket 22 and the workpiece is further increased, and the possibility of bolt loosening is reduced.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a corrosion-resistant high strength hexagon bolt which characterized in that: the bolt comprises a bolt body (1) and a gasket (2), wherein the bolt body (1) further comprises a screw head (3), a screw bolt (4) and a reinforcing rib (5), the screw bolt (4) comprises a contraction section (41) close to the bottom of the screw head (3) and a screw thread section (42) far away from the bottom of the screw head (3), a plurality of side grooves (43) are formed in the outer side wall of the screw thread section (42), the gasket (2) further comprises an inner side elastic gasket (21) and an outer side anti-loosening gasket (22), the inner side elastic gasket (21) is nested on the contraction section (41), the outer side anti-loosening gasket (22) is connected with the screw bolt (4) through the inner side elastic gasket (21), a plurality of first open grooves (211) are formed in the top surface of the inner side elastic gasket (21), a through groove (212) is formed in the center of the groove bottom of the first open groove (211), and the reinforcing rib (5) penetrates through the through groove (212) and is embedded into, the wall of each of the first opening groove (211) and the through groove (212) is provided with a through hole (213) communicated with the outer side wall of the inner side elastic washer (21), the joint surface of the outer side anti-loosening gasket (22) and the inner side elastic washer (21) is provided with a second opening groove (221), the notch of the second opening groove (221) is opposite to the through hole (213), a plurality of elliptical bag bodies (222) are arranged inside the second opening groove (221), and anti-rust oil (223) is arranged inside the elliptical bag bodies (222).
2. A corrosion-resistant high-strength hexagon bolt according to claim 1, wherein: the diameter of the contraction section (41) is 0.75-0.8 times of the diameter of the thread section (42), and the length of the contraction section (41) is the same as the thickness of the inner elastic washer (21).
3. A corrosion-resistant high-strength hexagon bolt according to claim 2, wherein: be equipped with coordination ring groove (224) on the contact surface of outside locking gasket (22) and inboard elastic washer (21), the minimum diameter of coordination ring groove (224) is greater than the diameter of screw thread section (42), the lateral wall of outside locking gasket (22) is arc, the bottom surface of outside locking gasket (22) is the circular arc inclined plane that has anti-skidding line.
4. A corrosion-resistant high-strength hexagon bolt according to claim 1, wherein: the quantity of strengthening rib strip (5) is 6, the head of strengthening rib strip (5) is regular hexagonal prism, the pole portion of strengthening rib strip (5) is regular triangular prism, the shape of first open slot (211) and logical groove (212) corresponds with the head and the pole portion cross-section of strengthening rib strip (5) respectively.
5. The corrosion-resistant high-strength hexagon bolt according to claim 4, wherein: the side groove (43) is a regular triangular prism-shaped open groove, and the size of the side groove (43) is larger than the size of the rod part of the reinforcing rib (5).
6. A corrosion-resistant high-strength hexagon bolt according to claim 1, wherein: the second opening groove (221) is an annular opening groove, and the groove bottom of the second opening groove (221) is U-shaped.
7. A corrosion-resistant high-strength hexagon bolt according to any one of claims 1-6, wherein: the surfaces of the bolt body (1) and the gasket (2) are coated with corrosion-resistant layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010493811.5A CN111503113A (en) | 2020-06-03 | 2020-06-03 | Corrosion-resistant high-strength hexagon bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010493811.5A CN111503113A (en) | 2020-06-03 | 2020-06-03 | Corrosion-resistant high-strength hexagon bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111503113A true CN111503113A (en) | 2020-08-07 |
Family
ID=71870395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010493811.5A Pending CN111503113A (en) | 2020-06-03 | 2020-06-03 | Corrosion-resistant high-strength hexagon bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111503113A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160966A (en) * | 2020-09-30 | 2021-01-01 | 晏洋 | Bolt capable of preventing screw head from rusting |
| CN114263670A (en) * | 2021-12-15 | 2022-04-01 | 陈文超 | Bolt with adjustable tension |
| CN114517803A (en) * | 2022-02-23 | 2022-05-20 | 上海慧新五金科技有限公司 | Lubricating rust-proof bolt |
-
2020
- 2020-06-03 CN CN202010493811.5A patent/CN111503113A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160966A (en) * | 2020-09-30 | 2021-01-01 | 晏洋 | Bolt capable of preventing screw head from rusting |
| CN114263670A (en) * | 2021-12-15 | 2022-04-01 | 陈文超 | Bolt with adjustable tension |
| CN114263670B (en) * | 2021-12-15 | 2024-03-22 | 福建省华盖机械制造有限公司 | Bolt with adjustable pulling force |
| CN114517803A (en) * | 2022-02-23 | 2022-05-20 | 上海慧新五金科技有限公司 | Lubricating rust-proof bolt |
| CN114517803B (en) * | 2022-02-23 | 2023-09-26 | 上海慧新五金科技有限公司 | Lubricating rust-proof bolt |
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