CN111207147A - Magnetic ring for preventing looseness of threaded fastener and using method thereof - Google Patents
Magnetic ring for preventing looseness of threaded fastener and using method thereof Download PDFInfo
- Publication number
- CN111207147A CN111207147A CN202010140581.4A CN202010140581A CN111207147A CN 111207147 A CN111207147 A CN 111207147A CN 202010140581 A CN202010140581 A CN 202010140581A CN 111207147 A CN111207147 A CN 111207147A
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- CN
- China
- Prior art keywords
- magnetic
- magnetic ring
- ring
- threaded fastener
- threaded
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002265 prevention Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000008092 positive effect Effects 0.000 abstract description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
-
- 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
-
- 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
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/83—Use of a magnetic material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a magnetic ring for preventing a threaded fastener from loosening and a using method thereof, wherein the magnetic ring is sheet-shaped, two end faces of the magnetic ring are respectively provided with wedge-shaped teeth with different sizes, one end of each small tooth forms a small tooth surface, and one end of each large tooth forms a large tooth surface; the included angle between the magnetic pole direction of the magnetic ring and the geometric axial direction of the magnetic ring is less than or equal to 5 degrees. Compared with the prior art, the invention has the following positive effects: the invention can fix the threaded fastener, the connecting piece and the connected piece, so that the threaded fastener (such as a bolt, a screw, a nut and the like) is not loosened under severe working conditions, thereby greatly improving the connection reliability of the threaded fastener. The invention can lead the threaded connection fastener to have higher fastening performance, stable looseness prevention, simplicity, convenience, high efficiency and strong reliability.
Description
Technical Field
The invention relates to a magnetic ring for preventing loosening of a threaded fastener and a using method thereof.
Background
The threaded fastener is almost used on all mechanical devices and equipment, is the most important component for ensuring the connection reliability of a mechanical system, is widely used and detachable and fixedly connected, has the advantages of simple structure, convenience in assembly and disassembly and the like, but has the problems of looseness and looseness of the threaded fastener just because of the reversible assembly and disassembly of the threaded connection. With the continuous development of national economy and the continuous progress of science and technology, the number of fasteners applied to devices and equipment is increased, the safety and reliability of thread fastening are ensured, and the requirements on vibration resistance, impact resistance and fatigue failure resistance of the connecting fasteners are extremely high especially under the conditions of complex working environment and severe working conditions. The existing thread anti-loosening technology can not meet the requirements of connection and assembly of large devices and large equipment, and the invention provides a brand-new thread fastening anti-loosening element which is necessary for improving the connection reliability of a fastener to the greatest extent.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a magnetic ring for preventing loosening of a threaded fastener and a using method thereof, aiming at improving loosening prevention and connection reliability of the threaded fastener.
The technical scheme adopted by the invention for solving the technical problems is as follows: a magnetic ring for preventing a threaded fastener from loosening is sheet-shaped, wedge-shaped teeth with different sizes are arranged on two end faces of the magnetic ring, wherein one end of each small tooth forms a small tooth surface, and one end of each large tooth forms a large tooth surface; the included angle between the magnetic pole direction of the magnetic ring and the geometric axial direction of the magnetic ring is less than or equal to 5 degrees.
The invention also provides a using method of the magnetic ring for preventing the looseness of the threaded fastener, which comprises the following steps:
step one, large tooth surfaces of two magnetic circular rings are matched in a buckling mode, and magnetic circular ring groups are formed through magnetic superposition;
placing the magnetic ring group on the connecting piece, and sequentially connecting the magnetic ring group, the connecting piece and the connected piece through threaded fasteners;
and step three, pre-tightening the threaded fastener to wedge the small toothed surface at the upper end of the magnetic ring group into the pressing surface of the threaded fastener and wedge the small toothed surface at the lower end of the magnetic ring group into the pressed surface of the connecting piece.
Compared with the prior art, the invention has the following positive effects:
the invention provides a magnetic ring for preventing looseness of a threaded fastener and a use method thereof, wherein the magnetic ring is combined into a part which is usually formed by even numbers (two, four or more even numbers) and is matched with each other for use; the magnetic ring combination matched with each other utilizes the self structure and magnetism to enable the magnetic ring combination to be meshed and closely attached; the invention can fix the threaded fastener, the connecting piece and the connected piece, so that the threaded fastener (such as a bolt, a screw, a nut and the like) is not loosened under severe working conditions, thereby greatly improving the connection reliability of the threaded fastener. The invention can lead the threaded connection fastener to have higher fastening performance, stable looseness prevention, simplicity, convenience, high efficiency and strong reliability.
The magnetic ring for preventing the loosening of the threaded fastener and the combination thereof have unique conception and novel design, have the characteristics of high performance and high reliability, and are suitable for connecting and applying mechanical devices and equipment with severe working conditions such as vibration, impact, alternating load and the like, but not limited to the mechanical industry, and are also suitable for multiple industries such as buildings, electric power, railways, roads, aviation, military industry and the like. The whole technical scheme has simple and reliable process and high safety guarantee, and has important significance for improving the comprehensive performance of connection and fastening of the conventional devices and equipment.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a front view of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a bottom view of fig. 1.
Fig. 4 is a front view of the inventive combination.
Fig. 5 is an exploded isometric view of fig. 4.
Fig. 6 is a schematic view of the magnetic pole of fig. 4.
Fig. 7 is an enlarged view of a portion of the structure of fig. 6.
Fig. 8 is an application example of the combination of the present invention.
Fig. 9 is an example of an implementation of the use of the combination of the present invention.
Detailed Description
A magnetic ring for preventing the loosening of screw fastener is made of steel or stainless steel, the steel is the spring steel with the trademark of 27MnCrB5, the stainless steel is the austenitic stainless steel with the trademark of 022Cr17Ni12Mo2, but not limited to the above-mentioned materials, such as steel, stainless steel, alloy and other metal materials. The magnetic ring material contains one or more elements of iron, cobalt, nickel and the like which have a magnetism gathering function, the magnetic ring has the magnetic remanence of 0-10 kGs, the magnetic induction strength coercive force of 0-20 kOe and the magnetic energy product of 0-30 MGOe, and the application temperature is not higher than 200 ℃. The magnetic ring has the shape as shown in fig. 1, 2 and 3, is in a ring shape or a sheet shape, has an inner diameter D ranging from phi 3mm to phi 240mm, an outer diameter D ranging from phi 5mm to phi 600mm, and a thickness h ranging from phi 2mm to phi 25mm, and is suitable for the connection of metric threaded fasteners of M3 to M240. Fig. 2 shows the small tooth end of the magnetic ring, and fig. 3 shows the large tooth end of the magnetic ring.
The magnetic pole direction of the magnetic ring is inclined to the axial direction of the magnetic ring, as shown in fig. 1, 5 and 6. The magnetic ring is magnetized, the combination of two or more matched rings also has magnetism, and the magnetization direction is the axial direction of the magnetic ring, but is not absolutely parallel to the geometric axial direction of the ring, but forms an angle of not more than 5 degrees with the geometric axial direction of the ring.
The magnetic ring is usually composed of an even number (two, four or more even numbers) and a part, and is usually composed of two parts and a part which are buckled up and matched with each other, but the combination of a single part or a single part (three or more single parts) is not excluded. In the magnetic ring combination shown in fig. 4 and 5, the magnetic ring 1 and the magnetic ring 2 which are matched with each other have the same size and the same shape, and only have different magnetic pole directions; if N-level of one magnetic ring points to the small tooth end, and the N-level of the other magnetic ring points to the large tooth end, the two magnetic rings are buckled and matched to form a magnetic ring group by utilizing the principle that magnetic poles attract each other oppositely, and the wedge-shaped tooth structures arranged on the end surfaces of the two magnetic rings in the combination are beneficial to being simultaneously meshed and closely adhered under the action of magnetic force to form an integral component; as shown in fig. 6, the overall magnetic properties of the magnetic ring assembly are in a state of N-level at one end and S-level at the other end.
In the magnetic ring assembly shown in fig. 6 and 7, the large tooth surface 11 of the magnetic ring 1 and the large tooth surface 21 of the magnetic ring 2 are in mutual engagement and alignment, and are attached by magnetic attraction. The small tooth surface 12 of the magnetic ring 1 and the small tooth surface 22 of the magnetic ring 2 form two ends of a magnetic ring group, and respectively display magnetic N-level and magnetic S-level. And two sets of magnetic ring combinations can also be matched through magnetic superposition, so that four rings are formed as a combined component, and the like.
As an example of the looseness prevention of the threaded connection to which the magnetic ring group shown in fig. 8 is applied, the bolt 6 as a threaded fastener element mounts the attachment 4 to the attached member 5. Due to the reversible mounting and dismounting of the threaded connection, the bolt is easy to loosen, and particularly the bolt is in a dynamic environment. The bolt 6 and the connecting piece 4 can be attracted and tightly attached through the magnetic ring combination 3; meanwhile, the small tooth surface 12 at the upper end of the magnetic ring 3 can be wedged into the pressing surface of the bolt 6 in the pre-tightening process of the bolt 6, and the small tooth surface 22 at the lower end of the magnetic ring 3 can also be wedged into the pressed surface of the connecting piece 4 in the pre-tightening process of the bolt 6, so that double anti-loosening effects of magnetic attraction and wedging and stopping are formed in a connecting system adopting the magnetic ring combination 3, and the connecting system is firm and reliable. The engagement angle a of the large tooth surface of the magnetic ring is larger than the rising angle of the used threaded connection.
Fig. 9 shows an embodiment of the combination of the present invention, for example, a right-handed threaded fastener is used, the magnetic ring combination 3 of the present invention can be placed between the bolt 6 and the connected component 4, and the bolt fastening direction should be clockwise when viewed from top to bottom.
The combination of the invention aims to ensure that the circular ring combination can lead the connecting piece and the connected piece to be tightly connected by means of the unique structure and the innovative magnetic performance of the circular ring combination in the extremely severe motion working conditions of vibration, impact, alternating load and the like no matter the device and the equipment are in a static environment or in a dynamic state, and the like, so that the looseness and the looseness are avoided, and the connection reliability and the operation safety of the device and the equipment are improved to the maximum extent.
Claims (9)
1. A magnetic ring for loosening prevention of a threaded fastener is characterized in that: the magnetic ring is sheet-shaped, two end faces of the magnetic ring are respectively provided with wedge-shaped teeth with different sizes, wherein one end of each small tooth forms a small tooth surface, and one end of each large tooth forms a large tooth surface; the included angle between the magnetic pole direction of the magnetic ring and the geometric axial direction of the magnetic ring is less than or equal to 5 degrees.
2. The magnetic ring for loosening prevention of threaded fasteners as claimed in claim 1, wherein: the large tooth surfaces of the two magnetic circular rings are in buckling fit to form a magnetic circular ring group, the N-level of one magnetic circular ring points to the small tooth surface, the N-level of the other magnetic circular ring points to the large tooth surface, and the small tooth surfaces of the two magnetic circular rings form two ends of the magnetic circular ring group and respectively display the magnetic N-level and the magnetic S-level.
3. The magnetic ring for loosening prevention of threaded fasteners as claimed in claim 2, wherein: two or more magnetic ring groups are matched through magnetic superposition to form more magnetic ring combined parts.
4. The magnetic ring for loosening prevention of threaded fasteners as claimed in claim 1, wherein: the inner diameter of the magnetic circular ring is phi 3mm to phi 240mm, the outer diameter thereof is phi 5mm to phi 600mm, and the thickness thereof is 0.2mm to 25 mm.
5. The magnetic ring for loosening prevention of threaded fasteners as claimed in claim 1, wherein: the magnetic ring is made of metal materials such as steel, stainless steel or alloy.
6. The magnetic ring for loosening prevention of threaded fasteners as claimed in claim 5, wherein: the steel material is 27MnCrB5 grade spring steel, and the stainless steel material is 022Cr17Ni12Mo2 grade austenitic stainless steel.
7. The magnetic ring for loosening prevention of threaded fasteners as claimed in claim 6, wherein: the material of the magnetic ring contains iron, cobalt or nickel elements with magnetism gathering function, the magnetic performance remanence of the magnetic ring is 0-10 kGs, the magnetic induction strength coercive force is 0-20 kOe, and the magnetic energy product is 0-30 MGOe.
8. A use method of a magnetic ring for preventing looseness of a threaded fastener is characterized in that: the method comprises the following steps:
step one, large tooth surfaces of two magnetic circular rings are matched in a buckling mode, and magnetic circular ring groups are formed through magnetic superposition;
placing the magnetic ring group on the connecting piece, and sequentially connecting the magnetic ring group, the connecting piece and the connected piece through threaded fasteners;
and step three, pre-tightening the threaded fastener to wedge the small toothed surface at the upper end of the magnetic ring group into the pressing surface of the threaded fastener and wedge the small toothed surface at the lower end of the magnetic ring group into the pressed surface of the connecting piece.
9. The use of the magnetic ring for loosening prevention of threaded fasteners as claimed in claim 8, wherein: the fit angle of the large tooth surface of the magnetic circular ring group is larger than the rising angle of the threaded fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140581.4A CN111207147B (en) | 2020-03-03 | 2020-03-03 | Magnetic ring for preventing looseness of threaded fastener and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140581.4A CN111207147B (en) | 2020-03-03 | 2020-03-03 | Magnetic ring for preventing looseness of threaded fastener and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111207147A true CN111207147A (en) | 2020-05-29 |
| CN111207147B CN111207147B (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010140581.4A Active CN111207147B (en) | 2020-03-03 | 2020-03-03 | Magnetic ring for preventing looseness of threaded fastener and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111207147B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000024715A1 (en) * | 2020-10-20 | 2022-04-20 | Formula S A S Di Formula Group S R L & C | ANTI-UNSCREWING DEVICE FOR THE MANUAL ADJUSTMENT OF MANEUVERING OF BICYCLES, MOTORCYCLES AND SIMILAR. |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257027A (en) * | 1996-03-25 | 1997-09-30 | Sanei Kasei Kk | Washer |
| CN104533925A (en) * | 2015-01-08 | 2015-04-22 | 森科五金(深圳)有限公司 | Lock washer manufacturing method and lock washer |
| CN105090208A (en) * | 2015-08-25 | 2015-11-25 | 王景东 | Looseness-preventing and disassembling-preventing bolt |
| CN105697504A (en) * | 2014-12-09 | 2016-06-22 | （株）三巽 | Anti-loosening bolt assembly |
| CN106837982A (en) * | 2017-03-28 | 2017-06-13 | 华和平 | Increase fastener working surface coefficient of friction improves the scheme of its locking functions |
| CN207701557U (en) * | 2017-12-28 | 2018-08-07 | 常州工程职业技术学院 | A kind of modified racing car fastening assembly |
| CN212155391U (en) * | 2020-03-03 | 2020-12-15 | 中铁隆昌铁路器材有限公司 | Magnetic ring for preventing looseness of threaded fastener |
-
2020
- 2020-03-03 CN CN202010140581.4A patent/CN111207147B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257027A (en) * | 1996-03-25 | 1997-09-30 | Sanei Kasei Kk | Washer |
| CN105697504A (en) * | 2014-12-09 | 2016-06-22 | （株）三巽 | Anti-loosening bolt assembly |
| CN104533925A (en) * | 2015-01-08 | 2015-04-22 | 森科五金(深圳)有限公司 | Lock washer manufacturing method and lock washer |
| CN105090208A (en) * | 2015-08-25 | 2015-11-25 | 王景东 | Looseness-preventing and disassembling-preventing bolt |
| CN106837982A (en) * | 2017-03-28 | 2017-06-13 | 华和平 | Increase fastener working surface coefficient of friction improves the scheme of its locking functions |
| CN207701557U (en) * | 2017-12-28 | 2018-08-07 | 常州工程职业技术学院 | A kind of modified racing car fastening assembly |
| CN212155391U (en) * | 2020-03-03 | 2020-12-15 | 中铁隆昌铁路器材有限公司 | Magnetic ring for preventing looseness of threaded fastener |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000024715A1 (en) * | 2020-10-20 | 2022-04-20 | Formula S A S Di Formula Group S R L & C | ANTI-UNSCREWING DEVICE FOR THE MANUAL ADJUSTMENT OF MANEUVERING OF BICYCLES, MOTORCYCLES AND SIMILAR. |
| EP3988805A1 (en) * | 2020-10-20 | 2022-04-27 | Formula S.A.S. Di "Formula Group S.R.L." & C. | Anti-unscrewing device of a manual adjustment of bicycles, motorcycles and similar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111207147B (en) | 2021-07-16 |
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