CN202326641U - Self-locking nut with cambered surface and groove structure - Google Patents
Self-locking nut with cambered surface and groove structure Download PDFInfo
- Publication number
- CN202326641U CN202326641U CN2011204804865U CN201120480486U CN202326641U CN 202326641 U CN202326641 U CN 202326641U CN 2011204804865 U CN2011204804865 U CN 2011204804865U CN 201120480486 U CN201120480486 U CN 201120480486U CN 202326641 U CN202326641 U CN 202326641U
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- Prior art keywords
- nut
- groove
- self
- face
- cambered surface
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- Expired - Fee Related
Links
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 7
- 229910001315 Tool steel Inorganic materials 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 7
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 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
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a self-locking nut with a cambered surface and groove structure. The self-locking nut comprises a nut, wherein the periphery of the nut is a polygon; the upper end face of the nut is a concave cambered surface; the lower end face of the nut is a concave cambered surface, a plane or a convex surface; a lower end face groove is formed on the lower end face of the nut; the concave cambered surface of the upper end face of the nut is a rotary surface which is a cylindrical surface; when the upper end face and the lower end face of the nut are cylindrical surfaces, an included angle between the axis of the cylindrical surface on the upper end face of the nut and the axis of the cylindrical surface on the lower end face of the nut is 0 to 90 degrees; the polygon is a regular hexagon; the nut is made of spring steel or tool steel; the groove on the lower end face of the nut is a rectangular groove or a V-shaped groove; and an included angle of the V-shaped groove is 0 to 90 degrees. The self-locking nut is locked under the elastic deformation of the nut. The self-locking nut with the cambered surface and groove structure is locked under the elastic deformation of the nut without any gaskets or other accessories; due to the groove structure, the locking reliability is guaranteed; and the self-locking nut is convenient to assemble and disassemble, and has a low labor requirement.
Description
Technical field
The utility model relates to engineering and uses nut, relates in particular to a kind of cambered surface groove self-locking nut.
Background technique
It is Placement the most commonly used in the mechanical parts that bolt connects, because becoming flexible can appear in machinery bolt in movement process, can influence the stable row and the reliability of mechanical motion, so realize that bolted locking ten minutes is important.Change nut structure and be and realize that bolt connects locking the simplest and effective and efficient manner.
It (generally is 2 that existing a kind of locking nut is drilled with the tapped hole that runs through at the outer round surface of nut to interior round thread face; Being 90 at periphery distributes), be used for being screwed into the sunk screw of minor diameter, order formula not only method for using is complicated; Be unfavorable for that the workman installs; And processing request is high, and what cost was high is the power that applies a centripetal direction to screw thread, prevents that locking nut from unclamping.This locking side.A kind of in addition locking nut adds compression spring, and the compression spring deformation performance is little, is unfavorable for locking.The locking nut that loosens that also has a kind of special use; On the circumference of nut, have 3,4,6 or 8 breach (it is different and different with the manufacturer product line to look the nut size); These several breach are the Point of Strength of tightening tool, are again the places that snaps in of check washer bayonet socket.This locking nut structure is too complicated, and production inconvenience and cost are high.
Summary of the invention
The utility model overcomes the deficiency of existing technology, and a kind of cambered surface groove self-locking nut is provided.
Cambered surface groove self-locking nut comprises nut, and nut circumference is a polygonal, and the nut upper-end surface is the depression cambered surface; The nut lower end surface is depression cambered surface, plane or convex surface; The nut lower end surface is provided with the lower end surface groove, and the depression cambered surface of said nut upper-end surface is a turning surface, and turning surface is the cylndrical surface; When the upper and lower end face of nut was the cylndrical surface, cylndrical surface on the nut upper-end surface and the cylndrical surface axis angle on the lower end surface were 0 °～90 °.
Described polygonal is a regular hexagon.The material of said nut is spring steel or tool steel.The lower end surface groove of said nut is rectangle groove or V-type groove, and V-type groove angle is 0 °～90 °.
The utility model is realized locking through the resiliently deformable of cambered surface groove self-locking nut.In use, the cambered surface groove self-locking nut in the utility model can be installed directly, also plain nut can be installed earlier, the cambered surface groove self-locking nut in the utility model is installed outside plain nut then, the upper-end surface is the working surface of this nut.Behind the nut screwing clamping, because the depression of upper-end surface, coupling mechanism force will make self-locking end face generation resiliently deformable, and cambered surface groove self-locking nut tightens bolt locked.Simultaneously, coupling mechanism force can make the part generation elastic strain of nut lower end surface, and nut material is to groove center extruding, thereby hold-down bolt makes the robust more that is connected of nut and bolt.The utility model cambered surface groove self-locking nut need not packing ring and other accessories, leans on himself resiliently deformable locked, is convenient to install, and the workman is required low, is convenient to dismounting simultaneously again, realizes locking function, has given prominence to the flexibility of the utility model; Preferred regular hexagon nut edge, the opening size of its setting tool such as spanner is identical with plain nut, makes the nut setting tool unified, enhances productivity; Preferred spring steel material makes the self-locking nut have the certain elastic deformation ability under the prerequisite of intensity satisfying, and can not crack cracking in the course of the work.
Description of drawings
Fig. 1 is the structural representation of cambered surface groove self-locking nut;
Fig. 2 is the left view of the utility model;
Fig. 3 is the worm's eye view of the utility model.
Embodiment
Of Fig. 1～3, cambered surface groove self-locking nut comprises nut 1, and nut 1 periphery is a polygonal; Nut 1 upper-end surface is the depression cambered surface, and nut 1 lower end surface is depression cambered surface, plane or convex surface, and nut 1 lower end surface is provided with the lower end surface groove; The depression cambered surface of said nut 1 upper-end surface is a turning surface; Turning surface is the cylndrical surface, and when nut 1 upper and lower end face was the cylndrical surface, cylndrical surface on nut 1 upper-end surface and the cylndrical surface axis angle on the lower end surface were 0 °～90 °.
Nut 1 upper-end surface is depression cylinder cambered surface, makes easy to processly, and distortion evenly reduces the stress of self-locking nut 1 and concentrates; Nut 1 lower end surface is the plane, is convenient to offer groove.
Described polygonal is a regular hexagon.Orthohexagonal nut 1 edge can make instrument unification in the installation process, and number of tools reduces, and reduces production costs, and enhances productivity.Self-locking nut 1 material is spring steel or tool steel.
The material of said nut 1 is spring steel or tool steel.Spring steel material is selected 65Mn for use.65Mn is used for making small spring more, is used for making self-locking nut 1 here, can confirm that self-locking nut 1 has the high elasticity performance satisfying under the prerequisite of intensity, utilizes its resiliently deformable to realize locking.
The lower end surface groove of said nut 1 is rectangle groove or V-type groove, and V-type groove angle is 0 °～90 °.The lower end surface groove adopts rectangle groove, and along being symmetric arrangement on the center line, its quantity is one in the lower end surface.Rectangular recess in the time of can guaranteeing to become nut 1 distortion, has the squeezing effect of good ecto-entad along the center line symmetric arrangement in the lower end surface, guarantee further locking between nut 1 and the bolt.
Claims (4)
1. cambered surface groove self-locking nut; It is characterized in that comprising nut (1), nut (1) periphery is a polygonal, and nut (1) upper-end surface is the depression cambered surface; Nut (1) lower end surface is depression cambered surface, plane or convex surface; Nut (1) lower end surface is provided with the lower end surface groove, and the depression cambered surface of said nut (1) upper-end surface is a turning surface, and turning surface is the cylndrical surface; When the upper and lower end face of nut (1) was the cylndrical surface, cylndrical surface on nut (1) upper-end surface and the cylndrical surface axis angle on the lower end surface were 0 °～90 °.
2. a kind of cambered surface groove self-locking nut as claimed in claim 1 is characterized in that described polygonal is a regular hexagon.
3. a kind of cambered surface groove self-locking nut as claimed in claim 1, the material that it is characterized in that said nut is spring steel or tool steel.
4. a kind of cambered surface groove self-locking nut as claimed in claim 1, the lower end surface groove that it is characterized in that said nut (1) is rectangle groove or V-type groove, V-type groove angle is 0 °～90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204804865U CN202326641U (en) | 2011-11-28 | 2011-11-28 | Self-locking nut with cambered surface and groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204804865U CN202326641U (en) | 2011-11-28 | 2011-11-28 | Self-locking nut with cambered surface and groove structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326641U true CN202326641U (en) | 2012-07-11 |
Family
ID=46438621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204804865U Expired - Fee Related CN202326641U (en) | 2011-11-28 | 2011-11-28 | Self-locking nut with cambered surface and groove structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434568A (en) * | 2011-11-28 | 2012-05-02 | 浙江环达紧固件有限公司 | Self-locking nut with cambered surface groove |
-
2011
- 2011-11-28 CN CN2011204804865U patent/CN202326641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434568A (en) * | 2011-11-28 | 2012-05-02 | 浙江环达紧固件有限公司 | Self-locking nut with cambered surface groove |
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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: 20120711 Termination date: 20141128 |
|
| EXPY | Termination of patent right or utility model |