CN101865197A - Locking nut - Google Patents
Locking nut Download PDFInfo
- Publication number
- CN101865197A CN101865197A CN 201010225902 CN201010225902A CN101865197A CN 101865197 A CN101865197 A CN 101865197A CN 201010225902 CN201010225902 CN 201010225902 CN 201010225902 A CN201010225902 A CN 201010225902A CN 101865197 A CN101865197 A CN 101865197A
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- CN
- China
- Prior art keywords
- locking nut
- trip bolt
- fastening screw
- locking
- nut
- 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.)
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Abstract
The invention discloses a locking nut (1), which has deep grooves parallel to the surface of the nut; and a fastening bolt hole is formed on the surface of the nut. The locking nut uses an elastic material and is treated by a heat treatment process. The invention aims to provide a locking structure which has a reasonable structure and high locking reliability, achieves good locking effect, improves the force application direction of a locking screw and is suitable for locking in a narrow space.
Description
Technical field
The present invention relates in mechanical design field, a kind of with traditional locking nut locking mode is compared, have higher reliable lock, can access better locking effect, improve lock screw application of force direction, be applicable to the locking nut of small space.
Background technique
Traditional locking nut form is by on the outer six side planes of nut, and 1 to several little screws, and the mode that is screwed into Cock screw in screw is carried out with the vertical desire locking screw direction system of attacking.The coupling mechanism force of this locking mode acts directly on the screw thread, and three drawbacks are arranged, and the one, Cock screw does not have locking gear, and is loosening easily after running after a while; The 2nd, easily damage is caused at direct stressed screw thread position.The 3rd, the tightening direction of Cock screw is vertical with the desire locking screw, must consider to leave enough state spaces in design.Therefore, traditional locking nut in use is subjected to certain restriction.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructurely, have higher reliable lock, can access better locking effect, improve lock screw application of force direction, be applicable to the locking nut of small space.
Goal of the invention of the present invention is achieved in that a kind of locking nut 1, and described locking nut 1 has and the parallel deep trouth in nut surface, has attacked the fastening screw trip bolt hole on the nut surface.Lock screw 2 is screwed in the screw hole and fully tightens, and the groove width δ of the deep trouth on the locking nut 1 narrows down, and drives the pitch t of locking nut
1Change, form the self-lock force of screw thread, locking nut can not be rotated, reach the locking purpose; Described locking nut is fully tightened at fastening screw trip bolt 2, when the deep-seated groove width δ of locking nut 1 is narrowed down, because the drag that the metallic spring modulus produces also makes fastening screw trip bolt 2 be subjected to bigger pulling force, the screw thread position produces the tensile buckling of microcosmic, and this tensile buckling makes the pitch t of fastening screw trip bolt 2
2Change, form the self-lock force of screw thread, fastening screw trip bolt can not be rotated, reach fastening screw trip bolt and can not produce loosening effect; Described locking nut is when implementing screwing forces to fastening screw trip bolt 2, and the fastening screw thread of application of force direction and desire is parallel, and like this, locking nut 1 just can screw in the position of caving in and lock.
Locking nut uses elastic material, and through heat treatment process.
New locking nut has special structure, and structure obtains different locking principle and coupling mechanism force according to this, makes locking nut of the present invention obtain higher locking function.Locking nut of the present invention is screwed in the thread spindle of desire locking.Fastening screw trip bolt is screwed in the screw, and fully tightens.At this moment, under the effect of screwing force, the groove width δ of the deep-seated fluting on the locking nut narrows down, and the pitch that drives locking nut changes, and forms the self-lock force of screw thread, and locking nut can not be rotated, and reaches the locking purpose.Fully tighten at fastening screw trip bolt, when the deep-seated groove width δ of locking nut is narrowed down,, produce the tensile buckling of microcosmic because the drag that the metallic spring modulus produces also makes fastening screw trip bolt be subjected to bigger pulling force.This tensile buckling makes the pitch of fastening screw trip bolt change equally, forms the self-lock force of screw thread, and fastening screw trip bolt can not be rotated, and reaches fastening screw trip bolt and can not produce loosening effect.
The present invention is when implementing screwing force to fastening screw trip bolt, and the fastening screw thread of application of force direction F and desire is parallel.Like this, locking nut just can screw in the depression position and lock, and has utilized structure space to greatest extent.
A kind of locking nut of the present invention is compared conventional construction, has following advantage:
1, change the principle that pitch is carried out the screw thread self-locking because locking nut of the present invention has been used, therefore can not produce loosening phenomenon, non-maintaining property is strong, can use for a long time in not easily detachable structure.
2, because the fastening screw trip bolt of locking nut of the present invention does not contact with desiring locking screw, do not produce direct drag, therefore can not cause mechanical deterioration desiring locking screw.
3, since the present invention when fastening screw trip bolt is implemented screwing force, the fastening screw thread of application of force direction and desire is parallel.Like this, locking nut just can screw in the depression position and lock, and has utilized structure space to greatest extent.
Description of drawings
Fig. 1 is the main sectional view of a kind of locking nut of the present invention;
Fig. 2 example explanation locking nut is suitable for narrow spatial structure.
In the accompanying drawings, concrete numeral: 1-locking nut; 2-fastening screw trip bolt, 3-bearing, 4-thread spindle, 5-outer bearing gland, 6-inner bearing gland.
Embodiment
The invention will be further described in conjunction with the accompanying drawings:
Shown in accompanying drawing, a kind of locking nut locking mechanism comprises locking nut 1, fastening screw trip bolt 2, bearing 3, thread spindle 4, outer bearing gland 5, inner bearing gland 6.The effect of locking nut 1 is an axial clearance of adjusting bearing 3, is no more than set quota with the axial displacement that guarantees bearing 3.The structure of locking nut 1 is more special, and maximum characteristics are that to have width be δ, the deep trouth parallel with nut surface, have attacked the fastening screw trip bolt hole on the nut surface.During use, bearing 3 is contained on the thread spindle 4, and after outer bearing gland 5, inner bearing gland 6 are installed, after locking nut 1 is screwed into the screw thread position of thread spindle 4 and adjusts the axial clearance of bearing, lock screw 2 is screwed in the screw hole and fully tightens, the groove width δ of the deep-seated fluting on the locking nut 1 is narrowed down, drive the pitch t of locking nut
1Change, form the self-lock force of screw thread, locking nut can not be rotated, reach the locking purpose.Fully tighten at fastening screw trip bolt 2, when the deep-seated groove width δ of locking nut 1 was narrowed down, because the drag that the metallic spring modulus produces also makes fastening screw trip bolt 2 be subjected to bigger pulling force, the screw thread position produced the tensile buckling of microcosmic.This tensile buckling makes the pitch t of fastening screw trip bolt 2 equally
2Change, form the self-lock force of screw thread, fastening screw trip bolt can not be rotated, reach fastening screw trip bolt and can not produce loosening effect.
The present invention is when implementing screwing forces to fastening screw trip bolt 2, and the fastening hand of spiral of application of force direction F and desire is parallel.Like this, locking nut 1 just can screw in the depression position and lock, and has utilized structure space to greatest extent.
Claims (3)
1. a locking nut (1) is characterized in that: the deep trouth that described locking nut (1) has and the nut surface is parallel, attacked the fastening screw trip bolt hole on the nut surface.
2. according to the described a kind of locking nut of claim 1 (1), it is characterized in that: lock screw (2) is screwed in the screw hole also fully tightens, the groove width δ of the deep trouth on the locking nut (1) narrows down, and drives the pitch t of locking nut
1Change, form the self-lock force of screw thread, locking nut can not be rotated; Described locking nut is tightened at fastening screw trip bolt (2), when the deep-seated groove width δ of locking nut (1) is narrowed down, because the drag that the metallic spring modulus produces also makes fastening screw trip bolt (2) be subjected to pulling force, the screw thread position produces the tensile buckling of microcosmic, and this tensile buckling makes the pitch t of fastening screw trip bolt (2)
2Change, form the self-lock force of screw thread, fastening screw trip bolt can not be rotated; Described locking nut is when implementing screwing force to fastening screw trip bolt (2), and the fastening screw thread of application of force direction and desire is parallel, and locking nut (1) can screw in the position of caving in and lock.
3. according to the described a kind of locking nut of claim 1-2, it is characterized in that: locking nut uses elastic material, and through heat treatment process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010225902 CN101865197A (en) | 2010-07-14 | 2010-07-14 | Locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010225902 CN101865197A (en) | 2010-07-14 | 2010-07-14 | Locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101865197A true CN101865197A (en) | 2010-10-20 |
Family
ID=42957061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010225902 Pending CN101865197A (en) | 2010-07-14 | 2010-07-14 | Locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072238A (en) * | 2011-02-10 | 2011-05-25 | 北京中清能发动机技术有限公司 | Chip screw element and locking device for same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794338A1 (en) * | 1996-03-06 | 1997-09-10 | The Timken Company | Locking nut |
| CN201057204Y (en) * | 2007-06-07 | 2008-05-07 | 扬动股份有限公司 | Easy lockunt |
| CN201255167Y (en) * | 2008-07-24 | 2009-06-10 | 广西玉柴机器股份有限公司 | Self-locking nut |
| CN201335074Y (en) * | 2008-12-02 | 2009-10-28 | 宁波南螺建通紧固件有限公司 | Positioning nut |
| CN201502614U (en) * | 2009-10-13 | 2010-06-09 | 湖北行星传动设备有限公司 | Round nut |
-
2010
- 2010-07-14 CN CN 201010225902 patent/CN101865197A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794338A1 (en) * | 1996-03-06 | 1997-09-10 | The Timken Company | Locking nut |
| CN201057204Y (en) * | 2007-06-07 | 2008-05-07 | 扬动股份有限公司 | Easy lockunt |
| CN201255167Y (en) * | 2008-07-24 | 2009-06-10 | 广西玉柴机器股份有限公司 | Self-locking nut |
| CN201335074Y (en) * | 2008-12-02 | 2009-10-28 | 宁波南螺建通紧固件有限公司 | Positioning nut |
| CN201502614U (en) * | 2009-10-13 | 2010-06-09 | 湖北行星传动设备有限公司 | Round nut |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072238A (en) * | 2011-02-10 | 2011-05-25 | 北京中清能发动机技术有限公司 | Chip screw element and locking device for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101020 |