CN113124037A - Normal balance locknut and locking method thereof - Google Patents
Normal balance locknut and locking method thereof Download PDFInfo
- Publication number
- CN113124037A CN113124037A CN202110412284.5A CN202110412284A CN113124037A CN 113124037 A CN113124037 A CN 113124037A CN 202110412284 A CN202110412284 A CN 202110412284A CN 113124037 A CN113124037 A CN 113124037A
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- China
- Prior art keywords
- nut
- wedge
- normal balance
- locknut
- shaped washer
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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
- F16B37/00—Nuts or like thread-engaging members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a normal balance nut and a locking method thereof. The wedge washer is added to lift one side of the nut, so that the spiral line of the nut tends to be horizontal, and a component force for offsetting a thread lead angle can be generated in the screwing process. The middle section of the nut is provided with a cavity, the installed nut can incline under the action of the wedge-shaped gasket, and when viewed from a section view, one half of threads are close to the axis of the screw, the other half of threads are far away from the axis of the screw, and the half of threads close to the axis of the screw can generate radial pressing force. Under the working state, the nut generates axial locking force when screwed, and simultaneously generates component force for balancing thread lead angle and radial force for pressing the screw rod.
Description
Technical Field
The invention relates to the technical field of nuts, in particular to a normal balance nut and a locking method thereof.
Background
In many industries, vibration and looseness prevention are difficult to solve by an economic method. The convex-concave type nut of Japan hadamard company is known as the best anti-loose nut at present, which not only has axial fastening force, but also has radial locking force of the thread, and the anti-loose force is from a radial eccentric conical surface which is arranged between two nuts like a wedge in the graph shown on the official website, but the anti-loose nut has more complex structure and high production and manufacturing cost, and most importantly, the anti-loose nut causes restriction to us.
Therefore, the normal balance nut and the anti-loosening method thereof are provided.
Disclosure of Invention
The invention aims to provide a normal balance nut and a locking method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a normal balance nut comprises a nut and a wedge-shaped washer, wherein the wedge-shaped washer is arranged on the end face of the nut.
Further, the highest point of the wedge washer coincides with the start of the thread of the nut.
Furthermore, both ends of the interior of the nut are of threaded structures, and the middle of the interior of the nut is of a cavity structure.
Further, the wedge-shaped washer and the nut are of a split structure.
Further, the wedge-shaped washer and the nut are of an integral structure.
Further, the ratio of the major diameter of the nut internal thread to the major diameter of the standard nut internal thread is 1:1 to 1.1: 1.
A normal balance nut and a looseness-proof method thereof comprise the following steps:
step 1: the screw rod penetrates through a fixed object, when the nut and the washer are of a split structure, a tapered wedge-shaped washer is placed at the lower end of the nut, and the highest point of the wedge-shaped washer is overlapped with the starting point of the spiral line of the nut;
step 2: screwing the nut to enable the lifted spiral line to be horizontal, wherein the lifting force overcomes the component force generated by the thread lead angle;
and step 3: when the nut and the wedge-shaped washer are of an integral structure, the spiral line of the screwed nut is horizontal;
and 4, step 4: after the nut is screwed, no matter the nut is split or integrated, the end face of the nut is inclined towards the lower side due to the inclined wedge-shaped gasket to form an included angle with the axis of the screw, one half of the two end faces of the nut is close to the axis of the screw, the other half of the two end faces of the nut is far away from the axis of the screw, and the close half of the nut generates radial pressing force.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, one side of the nut is lifted by adding the wedge-shaped washer, so that the spiral line of the nut tends to be horizontal, and a component force for offsetting a thread lead angle can be generated in the screwing process.
2. According to the invention, through the fact that the middle section of the nut is hollow and has no threads, the installed nut can be inclined under the action of the wedge-shaped washer, and when viewed in a cross section, one half of the nut is close to the axis of the screw, the other half of the nut is far away from the axis of the screw, and the half circle of threads close to the axis of the screw can generate radial pressing force.
3. According to the invention, locking force is generated during screwing, force for balancing thread lead angle and force for pressing the screw are generated, the screw can be locally bent under the action of the latter two forces, the tooth form angle of the bent screw changes, the screw is difficult to rotate when the nut is vibrated, and the thread of the screw connected with the nut can also deform due to the lifting force surface of the nut, so that the local thread line forms linear sudden change, the rotation of the nut is further hindered, and the purpose of preventing loosening is achieved.
Drawings
FIG. 1 is a schematic structural view of a wedge washer of the present invention;
FIG. 2 is a schematic structural view showing an installation state of the present invention;
FIG. 3 is a schematic diagram of the structure at A in FIG. 2 according to the present invention;
fig. 4 is a schematic view of the internal structure of the nut of the present invention.
In the figure: 1. a wedge-shaped washer; 2. a nut; 3. a cavity structure; 4. a fixed object; 5. a screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a normal balance nut and a locking method thereof comprise a nut 2 and a wedge-shaped washer 1, wherein the wedge-shaped washer 1 is arranged on the end face of the nut 2.
Wherein the highest point of the wedge-shaped washer 1 coincides with the start of the thread of the nut 2.
Wherein, the inside both ends of nut 2 are the helicitic texture, and the middle part is cavity structure 3.
The wedge-shaped washer 1 and the nut 2 are of split structures.
Wherein, the wedge-shaped washer 1 and the nut 2 are of an integral structure.
Wherein, the ratio of the major diameter of the internal thread of the nut 2 to the major diameter of the internal thread of the standard nut is 1:1 to 1.1: 1.
A normal balance nut and a looseness-proof method thereof comprise the following steps:
step 1: a screw rod 5 penetrates through a fixed object 4, when the nut and the washer are of a split structure, a tapered wedge-shaped washer 1 is placed at the lower end of the nut 2, and the highest point of the wedge-shaped washer 1 is overlapped with the starting point of the spiral line of the nut 2;
step 2: screwing the nut 2 to enable the lifted spiral line to be horizontal, wherein the lifting force overcomes the component force generated by the thread lead angle;
and step 3: when the nut 2 and the wedge-shaped washer 1 are of an integral structure, the spiral line of the screwed nut 2 is horizontal;
and 4, step 4: after the nut is screwed, no matter the nut is split or integrated, the end face of the nut 2 is inclined to the lower side due to the inclined wedge-shaped washer 3, an included angle is formed between the end face and the axis of the screw rod 5, half of the two end faces of the nut 2 are close to the axis of the screw rod 5, the other half of the two end faces are far away from the axis of the screw rod 5, and the close half circle of the nut 2 generates radial pressing force.
The working principle is as follows: the end surface of the nut 2 is added with a wedge-shaped gasket 1 to lift one side of the nut 2, so that the spiral line of the nut 2 tends to be horizontal, a component force for offsetting a thread lift angle can be generated in the screwing process, meanwhile, because the middle section of the nut 2 is a hollow cavity structure 3 without threads, the installed nut 2 can incline under the action of the wedge-shaped gasket 1, half of the nut is close to the axis of a screw rod 5 and the other half of the nut is far away from the axis of the screw rod 5, and half of threads close to the axis of the screw rod 5 can generate radial pressing force under the action of the wedge-shaped gasket 1, the screw 2 of the structure generates locking force during screwing, and also generates force for balancing the thread lift angle and force for pressing the screw rod 5, under the action of the latter two forces, the screw rod 5 can generate local bending, the tooth form angle of the bent screw rod 5 changes, the nut 2 is difficult to rotate when being vibrated, and the threads of the screw rod 5 connected, the local thread line is deformed due to the lifting force surface of the nut 2, so that the local thread line is changed in a linear sudden change, the rotation of the nut 2 is further hindered, and the anti-loosening purpose is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A normal balance locknut, includes nut (2) and wedge washer (1), its characterized in that: the end face of the nut (2) is provided with a wedge-shaped gasket (1).
2. The normal balance locknut of claim 1, wherein: the highest point of the wedge-shaped washer (1) coincides with the starting point of the thread line of the nut (2).
3. The normal balance locknut of claim 1, wherein: the two ends of the interior of the nut (2) are of threaded structures, and the middle of the interior of the nut is of a cavity structure (3).
4. The normal balance locknut of claim 1, wherein: the wedge-shaped washer (1) and the nut (2) are of a split structure.
5. The normal balance locknut of claim 1, wherein: the wedge-shaped washer (1) and the nut (2) are of an integral structure.
6. The normal balance locknut of claim 1, wherein: the ratio of the major diameter of the internal thread of the nut (2) to the major diameter of the internal thread of the standard nut is 1:1 to 1.1: 1.
7. The normal balance nut and the anti-loose method thereof as claimed in claim 1, wherein: the method comprises the following steps:
step 1: a screw rod (5) penetrates through a fixed object (4), when the nut and the washer are of a split structure, a wedge-shaped washer (1) is placed at the lower end of the nut (2), and the highest point of the wedge-shaped washer (1) is overlapped with the starting point of the spiral line of the nut (2);
step 2: screwing the nut (2) to enable the lifted spiral line to be horizontal, wherein the lifting force overcomes the component force generated by the thread lead angle;
and step 3: when the nut (2) and the wedge-shaped washer (1) are of an integral structure, the spiral line of the screwed nut (2) is horizontal;
and 4, step 4: after the nut is screwed, the end face of the nut (2) inclines towards the lower side due to the wedge-shaped washer (3) and forms an included angle with the axis of the screw rod (5), and one half of the two end faces of the nut (2) is close to the axis of the screw rod (5), the other half of the two end faces of the nut (2) is far away from the axis of the screw rod (5), and the close half circle of the nut (2) generates radial pressing force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412284.5A CN113124037A (en) | 2021-04-16 | 2021-04-16 | Normal balance locknut and locking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412284.5A CN113124037A (en) | 2021-04-16 | 2021-04-16 | Normal balance locknut and locking method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113124037A true CN113124037A (en) | 2021-07-16 |
Family
ID=76777279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110412284.5A Pending CN113124037A (en) | 2021-04-16 | 2021-04-16 | Normal balance locknut and locking method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113124037A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003197Y (en) * | 2005-05-18 | 2008-01-09 | 纽弗雷公司 | Screw thread rubber gasket and bounce device |
| CN201170251Y (en) * | 2007-12-06 | 2008-12-24 | 陈晓彦 | Anti-vibration anti-loose self-locking thread fastener |
| KR20110133017A (en) * | 2011-11-23 | 2011-12-09 | 석 규 이 | Loosening Nut Washer Using Eccentric Load |
| CN108119512A (en) * | 2016-11-27 | 2018-06-05 | 余小春 | Formula of bearing down on one shock-proof check pipe nut |
| CN108253005A (en) * | 2018-03-27 | 2018-07-06 | 毕书鹏 | Stop nut and locking gear and retention device |
| CN108506320A (en) * | 2018-05-22 | 2018-09-07 | 张海华 | A kind of check bolt nut structure assembly |
-
2021
- 2021-04-16 CN CN202110412284.5A patent/CN113124037A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003197Y (en) * | 2005-05-18 | 2008-01-09 | 纽弗雷公司 | Screw thread rubber gasket and bounce device |
| CN201170251Y (en) * | 2007-12-06 | 2008-12-24 | 陈晓彦 | Anti-vibration anti-loose self-locking thread fastener |
| KR20110133017A (en) * | 2011-11-23 | 2011-12-09 | 석 규 이 | Loosening Nut Washer Using Eccentric Load |
| CN108119512A (en) * | 2016-11-27 | 2018-06-05 | 余小春 | Formula of bearing down on one shock-proof check pipe nut |
| CN108253005A (en) * | 2018-03-27 | 2018-07-06 | 毕书鹏 | Stop nut and locking gear and retention device |
| CN108506320A (en) * | 2018-05-22 | 2018-09-07 | 张海华 | A kind of check bolt nut structure assembly |
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| PB01 | Publication | ||
| 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 |
Application publication date: 20210716 |
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| RJ01 | Rejection of invention patent application after publication |