CN110056564A - A kind of bolt and nut connection anti-loose structure with combine - Google Patents
A kind of bolt and nut connection anti-loose structure with combine Download PDFInfo
- Publication number
- CN110056564A CN110056564A CN201910320798.0A CN201910320798A CN110056564A CN 110056564 A CN110056564 A CN 110056564A CN 201910320798 A CN201910320798 A CN 201910320798A CN 110056564 A CN110056564 A CN 110056564A
- Authority
- CN
- China
- Prior art keywords
- nut
- diameter
- thread
- bolt
- locking
- 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.)
- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
-
- 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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/16—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The thread connection field that the invention belongs to mechanically fasten, the invention discloses a kind of bolt and nut connection anti-loose structure with combine, it is the left hand thread pair and right-handed thread pair formed after being tightened using attachment bolt 1 and locking nut 2, stop nut 3, because of mutually locking effect caused by rotation direction difference, along with the mutual restriction of frictional force or locking groove on contact surface, it is ensured that complete the fastening effect and locking effect that bolt and nut couples.For mechanically fasten connection provide it is a kind of be simple to manufacture, anti-loosening property is good, reuse rate is high bolt and nut couple anti-loose structure with combine.
Description
Technical field
The invention belongs to the thread connection field of mechanical fasteners, be related to a kind of bolt and nut connection anti-loose structure with combine.
Background technique
The features such as bolt and nut fastening connection is cheap with its manufacturing cost, easy to loading and unloading, and reuse rate is high, is widely applied
In machinery industry.
Bolt and nut fastening connection in practical applications, inevitably by strong vibration and impact, can usually draw
The loosening of bolt and nut fastening connection is played, to cause bolt and nut fastening connection ineffective, is even failed, meeting when serious
Cause the serious accidents such as Focal drug-block.
Summary of the invention
The purpose of the present invention: it is simple to provide a kind of structure, easily fabricated, the bolt that anti-loosening property is good, reuse rate is high
Nut coupling structure with combine.
Structure innovation of the invention is: on the same center line of attachment bolt 1, producing that adjacent, end thread is straight
Diameter be less than the middle part diameter of thread sinistral external thread and each one section of dextrorotation external screw thread, and be equipped with locking nut 2 and locking respectively
Nut 3.Locking nut 2, stop nut 3, the contact surface between adjusting washer 4, can be according to requirement, using two kinds of different knots
Configuration formula: first is that smooth surface CONTACT WITH FRICTION；Second is that processing mutually matched convex-concave locking groove.Stop nut 3 in Fig. 1 is utilized simultaneously
Unthreaded hole height, in Fig. 2 locking nut 2 thicken height, in Fig. 3 adjusting washer 4 total height, it is ensured that exist in locking nut 2
Effective locking of stop nut 3 effectively after fastening.
The object of the present invention is achieved like this: when being vibrated with impact, locking nut 2 and stop nut 3 will
Micro- rotation before loosening, situation are as follows: one, locking nut 2 does not turn or screws: if A stop nut 3 and locking nut 2
Oppositely oriented, stop nut 3 screws, and bolt and nut connection more fastens；If B stop nut 3 and 2 rotation direction phase of locking nut
Together, stop nut 3 is intended to rotate to loosening direction, at this point, the locking groove or frictional force by contact surface act on, the nothing of stop nut 3
Method individually rotates.Two, locking nut 2 is rotated to direction is loosened: if A stop nut 3 does not turn or screws, must prevent locking nut
2 loosen rotation；B stop nut 3 is rotated to direction is loosened, at this point, the locking groove or frictional force by contact surface act on, locking screw
Mother 2 and stop nut 3 can not all loosen rotation.In this way, on the whole, being formed bolt and nut coupling structure and preventing with what is combined
Loose mechanism.
Detailed description of the invention
The present invention has tri- kinds of structures of Fig. 1, Fig. 2, Fig. 3, and because contact surface has optical plane and is machined with the difference of rotation stop groove, just
Form six kinds of combinations.Rotation stop slot structure is more, does not subdivide and illustrates.In the accompanying drawings
1-attachment bolt of Fig. 1 (special), 2-locking nut (common), 3-stop nut (special)
1-attachment bolt of Fig. 2 (special), 2-locking nut (common to thicken) 3-stop nuts (common)
1-attachment bolt of Fig. 3 (special), 2-locking nut (common) 3-stop nut (common) 4-adjusting washers are (general
Logical thickening is several common)
One of Fig. 4 rotation stop groove embodiment structure
Note: be in bracket contact surface be smooth surface when (do not process rotation stop groove) with the difference of plain nut.
Claims (7)
1. a kind of bolt and nut connection anti-loose structure with combine, it is characterised in that: clamping screw has two sections of adjacent diameter dimensions
Different, oppositely oriented external screw thread, locking nut, stop nut successively with the big outer-diameter threads of clamping screw and small outer-diameter threads
Matching connection.
2. being based on claim 1: attachment bolt has adjacent, end thread diameter to be less than middle section on same center line
Each one section of the sinistral external thread and dextrorotation external screw thread of the diameter of thread, the two is oppositely oriented, i.e., there are two types of situations: first is that major diameter is used
Right-handed thread, then minor diameter left hand thread, second is that major diameter left hand thread, then minor diameter right-handed thread.
3. being based on claim 1: locking nut and attachment bolt major diameter external screw thread cooperate, and the internal diameter of the screw thread of locking nut is slightly
Greater than the externally threaded outer diameter of attachment bolt minor diameter.
4. being based on claim 1: the cooperation of the minor diameter external screw thread of stop nut and attachment bolt.
5. being based on claim 1: the unthreaded hole height of stop nut 2 in Fig. 1, the thickening height of locking nut 3 in Fig. 2 are adjusted in Fig. 3
The total height of whole washer 4, after being to ensure that locking nut effectively fastens, effective locking of stop nut.
6. two kinds of structures can be used in the contact surface between locking nut, stop nut, adjusting washer: first is that optical plane, second is that plus
Work has the rotation stop groove of male-female, that is to say, that the present invention has tri- kinds of structures of Fig. 1, Fig. 2, Fig. 3, and because contact surface has optical plane
With point for the rotation stop groove for being machined with male-female, there are six kinds of combining forms.
7. rotation stop groove is not limited to structure type, the independent rotation of stop nut can effectively prevent, and can smoothly tighten, dismantle i.e.
It can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320798.0A CN110056564A (en) | 2019-04-20 | 2019-04-20 | A kind of bolt and nut connection anti-loose structure with combine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320798.0A CN110056564A (en) | 2019-04-20 | 2019-04-20 | A kind of bolt and nut connection anti-loose structure with combine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056564A true CN110056564A (en) | 2019-07-26 |
Family
ID=67319910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910320798.0A Withdrawn CN110056564A (en) | 2019-04-20 | 2019-04-20 | A kind of bolt and nut connection anti-loose structure with combine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056564A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997983A (en) * | 2020-05-15 | 2020-11-27 | 申秀云 | Locking device for stop groove nut |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160790Y (en) * | 1993-05-12 | 1994-04-06 | 林清富 | Screw thread jointing part with reverse thread double nut locking structure |
| CN1324991A (en) * | 2000-05-22 | 2001-12-05 | 李晓亮 | Coombined locking and fastening method |
| CN2589722Y (en) * | 2002-10-28 | 2003-12-03 | 李西宁 | Bolt, nut and gasket on screw-threaded coupling arrangement |
| KR20050114184A (en) * | 2004-05-31 | 2005-12-05 | 조주혁 | Bolt and nut not being loose |
| CN202118079U (en) * | 2011-05-26 | 2012-01-18 | 西华大学 | Anti-loosening structure for thread connection |
| CN202560769U (en) * | 2012-04-11 | 2012-11-28 | 宁波金鼎紧固件有限公司 | Check bolt and nut connecting pair |
| CN203430954U (en) * | 2013-07-19 | 2014-02-12 | 莱芜钢铁集团有限公司 | Locknut assembly for rotating shaft |
| WO2016092572A1 (en) * | 2014-12-11 | 2016-06-16 | Michele Eramo | Unscrewing-preventing systems through friction for bolts |
| CN206206371U (en) * | 2016-09-30 | 2017-05-31 | 中国南方航空工业(集团)有限公司 | For the anti-loosing connecting structure of aircraft engine parts assembly connection |
| CN208123221U (en) * | 2018-04-27 | 2018-11-20 | 湘潭电机股份有限公司 | It is a kind of to determine torque anti-loosening locking bolt group |
-
2019
- 2019-04-20 CN CN201910320798.0A patent/CN110056564A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160790Y (en) * | 1993-05-12 | 1994-04-06 | 林清富 | Screw thread jointing part with reverse thread double nut locking structure |
| CN1324991A (en) * | 2000-05-22 | 2001-12-05 | 李晓亮 | Coombined locking and fastening method |
| CN2589722Y (en) * | 2002-10-28 | 2003-12-03 | 李西宁 | Bolt, nut and gasket on screw-threaded coupling arrangement |
| KR20050114184A (en) * | 2004-05-31 | 2005-12-05 | 조주혁 | Bolt and nut not being loose |
| CN202118079U (en) * | 2011-05-26 | 2012-01-18 | 西华大学 | Anti-loosening structure for thread connection |
| CN202560769U (en) * | 2012-04-11 | 2012-11-28 | 宁波金鼎紧固件有限公司 | Check bolt and nut connecting pair |
| CN203430954U (en) * | 2013-07-19 | 2014-02-12 | 莱芜钢铁集团有限公司 | Locknut assembly for rotating shaft |
| WO2016092572A1 (en) * | 2014-12-11 | 2016-06-16 | Michele Eramo | Unscrewing-preventing systems through friction for bolts |
| CN206206371U (en) * | 2016-09-30 | 2017-05-31 | 中国南方航空工业(集团)有限公司 | For the anti-loosing connecting structure of aircraft engine parts assembly connection |
| CN208123221U (en) * | 2018-04-27 | 2018-11-20 | 湘潭电机股份有限公司 | It is a kind of to determine torque anti-loosening locking bolt group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997983A (en) * | 2020-05-15 | 2020-11-27 | 申秀云 | Locking device for stop groove nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190726 |