CN202991799U - Bihexagonal nut with changed-tooth type anti-loosening thread - Google Patents
Bihexagonal nut with changed-tooth type anti-loosening thread Download PDFInfo
- Publication number
- CN202991799U CN202991799U CN 201220613996 CN201220613996U CN202991799U CN 202991799 U CN202991799 U CN 202991799U CN 201220613996 CN201220613996 CN 201220613996 CN 201220613996 U CN201220613996 U CN 201220613996U CN 202991799 U CN202991799 U CN 202991799U
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- China
- Prior art keywords
- nut
- bihexagonal
- jiaos
- internal thread
- wedge
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- 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.)
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Abstract
The utility model relates to the technical field of machinery, in particular to a bihexagonal nut with a changed-tooth type anti-loosening thread. The bihexagonal nut comprises a bihexagonal nut body and a bihexagonal nut internal thread, a wedge-shaped inclined face is arranged at the tooth bottom of the bihexagonal nut internal thread of the bihexagonal nut body, and an included angle at 30 degrees is reserved between a reverse extension line of a lower plane of the bihexagonal nut internal thread and the wedge-shaped inclined face. Compared with the prior art, the wedge-shaped inclined face at 30 degrees is additionally arranged at the tooth bottom of the bihexagonal nut internal thread, so that large lock force is generated when a bolt is screwed with the bihexagonal nut, and the problem that loosening of the bihexagonal nut at the pressing part of an axle hub bearing easily occurs is solved. An internal thread face and a wedge-shaped inclined face surface of the bihexagonal nut are respectively provided with a phosphate coating which ensures stable clamping force of threaded connection and has a rust-proof function.
Description
Technical field
The utility model relates to field of mechanical technique, specifically a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut.
Background technique
Along with the development of car industry, more and more higher to the requirement of fastening parts of automobiles.Existing 12 jiaos of nut check power are not enough, thereby 12 jiaos of nuts that cause the axle hub bearing to compress the position easily occur loosening.Therefore, a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut that can improve coupling mechanism force of design are vital.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut that can improve coupling mechanism force are provided.
In order to achieve the above object, the utility model has designed a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut, comprise 12 jiaos of nut bodies and 12 jiaos of nut inner threads, it is characterized in that: the tooth bottom of 12 jiaos of nut inner threads of 12 jiaos of nut bodies is provided with a wedge shape inclined-plane, and the angle between described wedge shape inclined-plane and described 12 jiaos of nut inner thread lower plane reverse extending lines is 30 °.
Angle between described 12 jiaos of nut inner thread lower planes and upper plane is 60 °.
Described 12 jiaos of nut inner thread surfaces are provided with phosphating coating.
Described wedge shape chamfered surface is provided with phosphating coating.
The specification of described 12 jiaos of nut bodies is M45 * 1.5mm or M55 * 1.5mm.
The utility model is compared with prior art, set up the wedge shape inclined-plane of 30 ° 12 jiaos of nut inner thread tooth bottoms, when bolt and 12 jiaos of nuts are tightened mutually, produce very large coupling mechanism force, loosening problem easily appears in 12 jiaos of nuts having avoided the axle hub bearing to compress the position; Set up respectively phosphating coating on 12 jiaos of nut inner thread surfaces and wedge shape chamfered surface, guarantee that the clamping force that is threaded is stable, and played antirust effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is 12 jiaos of nut inner thread cutaway view Amplified images of the present utility model
Referring to Fig. 1, Fig. 2 and Fig. 3,1 is 12 jiaos of nut bodies; 2 is 12 jiaos of nut inner threads; 3 is the wedge shape inclined-plane.
Embodiment
Now by reference to the accompanying drawings the utility model is described further.
Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model has designed a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut, comprises 12 jiaos of nut bodies and 12 jiaos of nut inner threads.12 jiaos of nut inner threads 2 tooth bottoms of 12 jiaos of nut bodies 1 are provided with a wedge shape inclined-plane 3, and the angle between wedge shape inclined-plane 3 and 12 jiaos of nut inner thread 2 lower plane reverse extending lines is 30 °.Angle between 12 jiaos of nut inner thread 2 lower planes and upper plane is 60 °.12 jiaos of nut inner thread 2 surfaces are provided with phosphating coating, and 3 surfaces, wedge shape inclined-plane are provided with phosphating coating.12 jiaos of nuts or specification that 12 jiaos of nut bodies 1 are M45 * 1.5mm for specification are 12 jiaos of nuts of M55 * 1.5mm.
When the utility model was screwed into 12 jiaos of nuts at bolt, the externally threaded cusp of bolt withstood on the wedge shape inclined-plane 3 of 12 jiaos of nut inner threads 2, produces very large coupling mechanism force, has reached the purpose that prevents 12 jiaos of nut loosenings.
The utility model is set up the wedge shape inclined-plane 3 of 30 ° in the tooth bottom of 12 jiaos of nut inner threads 2, when bolt and 12 jiaos of nuts are tightened mutually, produce very large coupling mechanism force, loosening problem easily appears in 12 jiaos of nuts having avoided the axle hub bearing to compress the position; Set up respectively phosphating coating on 12 jiaos of nut inner threads, 2 surfaces and 3 surfaces, wedge shape inclined-plane, guarantee that the clamping force that is threaded is stable, and played antirust effect.
Claims (5)
1. 12 jiaos of nuts that are provided with the variable-tooth type checknut, comprise 12 jiaos of nut bodies and 12 jiaos of nut inner threads, it is characterized in that: the tooth bottom of 12 jiaos of nut inner threads (2) of 12 jiaos of nut bodies (1) is provided with a wedge shape inclined-plane (3), and the angle between described wedge shape inclined-plane (3) and described 12 jiaos of nut inner threads (2) lower plane reverse extending line is 30 °.
2. a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut according to claim 1, it is characterized in that: the angle between described 12 jiaos of nut inner thread (2) lower planes and upper plane is 60 °.
3. a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut according to claim 1 is characterized in that: described 12 jiaos of nut inner threads (2) surfaces is provided with phosphating coating.
4. a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut according to claim 1, it is characterized in that: surface, described wedge shape inclined-plane (3) is provided with phosphating coating.
5. a kind of 12 jiaos of nuts that are provided with the variable-tooth type checknut according to claim 1, it is characterized in that: the specification of described 12 jiaos of nut bodies (1) is M45 * 1.5mm or M55 * 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613996 CN202991799U (en) | 2012-11-19 | 2012-11-19 | Bihexagonal nut with changed-tooth type anti-loosening thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613996 CN202991799U (en) | 2012-11-19 | 2012-11-19 | Bihexagonal nut with changed-tooth type anti-loosening thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991799U true CN202991799U (en) | 2013-06-12 |
Family
ID=48562983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220613996 Expired - Fee Related CN202991799U (en) | 2012-11-19 | 2012-11-19 | Bihexagonal nut with changed-tooth type anti-loosening thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295584A (en) * | 2014-09-30 | 2015-01-21 | 陕西方圆汽车标准件有限公司 | Variable thread type locknut |
| US10920817B2 (en) | 2016-04-29 | 2021-02-16 | Infastech Intellectual Properties Pte. Ltd. | Anti-vibration thread form |
-
2012
- 2012-11-19 CN CN 201220613996 patent/CN202991799U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295584A (en) * | 2014-09-30 | 2015-01-21 | 陕西方圆汽车标准件有限公司 | Variable thread type locknut |
| US10920817B2 (en) | 2016-04-29 | 2021-02-16 | Infastech Intellectual Properties Pte. Ltd. | Anti-vibration thread form |
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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: 20130612 Termination date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |