CN104295584A - Variable thread type locknut - Google Patents
Variable thread type locknut Download PDFInfo
- Publication number
- CN104295584A CN104295584A CN201410521899.1A CN201410521899A CN104295584A CN 104295584 A CN104295584 A CN 104295584A CN 201410521899 A CN201410521899 A CN 201410521899A CN 104295584 A CN104295584 A CN 104295584A
- Authority
- CN
- China
- Prior art keywords
- nut
- variable
- bolt
- angle
- thread type
- 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
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- 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
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/30—Locking exclusively by special shape of the screw-thread
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a variable thread type locknut. The variable thread type locknut comprises a nut body (4) which is provided with nut internal threads (1). The variable thread type locknut is characterized in that the position of the crest of the nut internal threads (1) is provided with a spiral conical surface (3); preferably, an included angle between the generatrix of the spiral conical surface (3) and the center axis of the nut internal threads (1) is 30 degrees; preferably, two ends of the nut body serve as a bolt screwing-in opening and a bolt screwing-out opening respectively; the bolt screwing-in opening extends outward to form steps; an inclined angle of a step surface of the steps is S; the edge of the bolt screwing-out opening is an inclined surface; an inclined angle of the inclined surface is D; the S is 20 to 30 degrees and the D is 30 degrees after improvement.
Description
Technical field
The present invention relates to nut structure, be applied particularly to after coordinating with bolt and lock workpiece.
Background technique
In prior art, the internal thread of plain nut and the outside thread engagement of bolt are as shown in Figure 1, under this engagement, the normal force that screw thread Contact produces becomes 30 ° of angles with bolt axis, though have certain fastening pressure and coupling mechanism force, but this coupling mechanism force is still large not in automobile assembling process, less coupling mechanism force can cause screw pair to connect the hidden danger existing and get loose.
Summary of the invention
Technical problem to be solved by this invention is that, for above-mentioned deficiency of the prior art, provide a kind of variable-tooth type lock nut, it can provide larger coupling mechanism force, screw pair is connected more reliable, prevents it from getting loose.
The technical solution adopted for the present invention to solve the technical problems is: variable-tooth type lock nut, comprises the nut body offering nut inner thread, and the crest place of described nut inner thread is manufactured with spiralling conical surface.
As a kind of preferred implementation of the present invention, the angle of the bus of above-mentioned conical surface and the central axis of nut inner thread is 30 °, and the postive direction of wherein said central axis is contrary with the spiral direction of nut inner thread.
As a kind of preferred implementation of the present invention, above-mentioned nut body two ends are respectively bolt and screw in mouth and bolt screw outlet, and described bolt screw-in mouth stretches out and produces step, and the step surface inclination angle of this step is S; The edge of described bolt screw outlet is inclined-plane, and the inclination angle on this inclined-plane is D.
As the improvement of above-mentioned preferred implementation, the angle of described S is 20 ~ 30 °; The angle of described D is 30 °.
Variable-tooth type lock nut of the present invention has the following advantages:
Variable-tooth type lock nut of the present invention is the conical surface making spiralling 30 ° of taperings at common internal thread crest, when bolt and variable-tooth type lock nut cooperatively interact, the cusp of bolt just withstands on the conical surface of nut tightly, thus creates very large coupling mechanism force.
Due to the Angulation changes of thread form, make to be applied to the normal force that screw thread Contact produces and become 60 ° of angles with bolt axis, instead of 30 ° of angles as regular screw threads.Variable-tooth type screw thread normal pressure is far longer than fastening pressure, and therefore, the locking frictional force produced also just must considerably increase, and significantly promotes the reliability that screw pair connects, for the Security of car load is had laid a good foundation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Fig. 1 is the schematic diagram of existing plain nut when engaging with bolt;
Fig. 2 is the schematic diagram of variable-pressure loosen nut of the present invention when engaging with bolt;
Fig. 3 is the structural representation of a kind of embodiment of the present invention;
Fig. 4 is the close-up schematic view at I place in Fig. 3.
Description of reference numerals:
1-nut inner thread, 2-bolt outside thread, 3-conical surface, 4-nut body.
Embodiment
Fig. 2, Fig. 3 and Fig. 4 show a kind of embodiment of the present invention, and as shown in the figure, variable-tooth type lock nut of the present invention, comprises the nut body 4 offering nut inner thread 1, the spiralling conical surface 3 that the crest place of its nut inner thread 1 is manufactured with.
General, the angle of the bus of above-mentioned conical surface and the central axis of nut inner thread is 30 °, and the postive direction of wherein said central axis is contrary with the spiral direction of nut inner thread.
As shown in Figure 3, the one as nut body is improved, and above-mentioned nut body 4 two ends are respectively bolt and screw in mouth and bolt screw outlet, and described bolt screw-in mouth stretches out and produces step, and the step surface inclination angle of this step is S; The edge of described bolt screw outlet is inclined-plane, and the inclination angle on this inclined-plane is D.
Preferably, the angle of above-mentioned S is 20 ~ 30 °; The angle of described D is 30 °.
By reference to the accompanying drawings the preferred embodiment for the present invention is explained in detail above, but the invention is not restricted to above-mentioned mode of execution, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.Should be appreciated that and the invention is not restricted to specific mode of execution, scope of the present invention is defined by the following claims.
Claims (4)
1. variable-tooth type lock nut, comprises the nut body (4) offering nut inner thread (1), it is characterized in that: the crest place of described nut inner thread (1) is manufactured with spiralling conical surface (3).
2. variable-tooth type lock nut as claimed in claim 1, is characterized in that: the angle of the bus of described conical surface (3) and the central axis of nut inner thread (1) is 30 °.
3. variable-tooth type lock nut as claimed in claim 1 or 2, it is characterized in that: described nut body (4) two ends are respectively bolt and screw in mouth and bolt screw outlet, described bolt screw-in mouth stretches out and produces step, and the step surface inclination angle of this step is S; The edge of described bolt screw outlet is inclined-plane, and the inclination angle on this inclined-plane is D.
4. variable-tooth type lock nut as claimed in claim 3, is characterized in that: the angle of described S is 20 ~ 30 °; The angle of described D is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521899.1A CN104295584A (en) | 2014-09-30 | 2014-09-30 | Variable thread type locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521899.1A CN104295584A (en) | 2014-09-30 | 2014-09-30 | Variable thread type locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104295584A true CN104295584A (en) | 2015-01-21 |
Family
ID=52315453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410521899.1A Pending CN104295584A (en) | 2014-09-30 | 2014-09-30 | Variable thread type locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397463A (en) * | 2018-04-02 | 2018-08-14 | 北京理工大学 | Include the anti-loosening threaded pair and checknut part of confined planes |
| CN109654102A (en) * | 2018-11-28 | 2019-04-19 | 浙江捷能汽车零部件有限公司 | With the external thread structure of the screw-internal thread fit of wedge-shaped checknut |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201184352Y (en) * | 2008-04-16 | 2009-01-21 | 宁波永灵铁路配件有限公司 | Heterodont locking type anti-loose and anti-drop nut |
| CN202991796U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Flange nut with changed-tooth type anti-loosening thread |
| CN202991798U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Nut with variable thread form type anti-loose threads |
| CN202991799U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Bihexagonal nut with changed-tooth type anti-loosening thread |
| CN202991781U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Slotting round nut with variable thread form type anti-loose threads |
| CN204127074U (en) * | 2014-09-30 | 2015-01-28 | 陕西方圆汽车标准件有限公司 | Variable-tooth type lock nut |
-
2014
- 2014-09-30 CN CN201410521899.1A patent/CN104295584A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201184352Y (en) * | 2008-04-16 | 2009-01-21 | 宁波永灵铁路配件有限公司 | Heterodont locking type anti-loose and anti-drop nut |
| CN202991796U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Flange nut with changed-tooth type anti-loosening thread |
| CN202991798U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Nut with variable thread form type anti-loose threads |
| CN202991799U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Bihexagonal nut with changed-tooth type anti-loosening thread |
| CN202991781U (en) * | 2012-11-19 | 2013-06-12 | 上海振高螺母有限公司 | Slotting round nut with variable thread form type anti-loose threads |
| CN204127074U (en) * | 2014-09-30 | 2015-01-28 | 陕西方圆汽车标准件有限公司 | Variable-tooth type lock nut |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397463A (en) * | 2018-04-02 | 2018-08-14 | 北京理工大学 | Include the anti-loosening threaded pair and checknut part of confined planes |
| CN109654102A (en) * | 2018-11-28 | 2019-04-19 | 浙江捷能汽车零部件有限公司 | With the external thread structure of the screw-internal thread fit of wedge-shaped checknut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |