CN109083913A - A kind of anti-loose lock nut structure and nut check anti-loose method - Google Patents
A kind of anti-loose lock nut structure and nut check anti-loose method Download PDFInfo
- Publication number
- CN109083913A CN109083913A CN201811072246.4A CN201811072246A CN109083913A CN 109083913 A CN109083913 A CN 109083913A CN 201811072246 A CN201811072246 A CN 201811072246A CN 109083913 A CN109083913 A CN 109083913A
- Authority
- CN
- China
- Prior art keywords
- locking nut
- nut
- locking
- loose
- check bolt
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000005553 drilling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000010586 diagram 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
- F16B37/00—Nuts or like thread-engaging members
-
- 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
Abstract
The invention discloses a kind of stop nut structure and nut check anti-loose methods, its main feature is that, by locking nut (10), check bolt (20) forms locking nut assembly, the edge an of L shape is cut on locking nut axially through formula cut hole (40), after locking nut (10) axial locking on installation axle (30), check bolt (20) is fastened on locking nut (10) with certain torque, the axial force along check bolt is generated in check bolt (20) fastener cycle, the axial force causes cut hole (40) position of the L shape of locking nut to generate local deformation, and internal screw thread at this is pressed on the external screw thread of installation axle (30), play the role of preventing nut loosening to increase the frictional force of internal and external threads at this；This kind of anti-loose method can be realized fast assembling-disassembling and can be used repeatedly.
Description
Technical field:
The present invention relates to locking nut technical field, specifically a kind of anti-loose lock nut structure and the anti-loose measure of nut check
Method；It is mainly used in mechanical erection field.
Background technique:
In life production, bearing, gear or other components are fixed on axis with locking nut or put on, especially consolidates bearing
In order to improve bearing service life when being scheduled on axis, it should guarantee that bearing has certain clearance requirement, guarantee locking nut again
Reliable lock will not generate unexpected loosening, while locking nut can realize fast assembling-disassembling and reusable when also needing to overhaul.
At present there are many locking modes of locking nut: sheet type, locking pads ring type, double nut locking type, double nut lock
The axial lock-screw formula of chip, band, 3 point points rush mechanical locking formula etc..The above locking mode or need axial space larger,
Or processing cost is higher or reusable property is too poor.
Summary of the invention:
The purpose of the present invention is overcoming the shortcomings of above-mentioned prior art, and provide a kind of anti-loose lock nut structure.
It is a further object of the present invention to provide a kind of nut check anti-loose methods.
Present invention mainly solves the locking mode of existing locking nut occupy larger axial space or increase processing cost or
The problem of reusing difference.
The technical scheme is that a kind of anti-loose lock nut structure, including locking nut, the processing of locking nut center
There is threaded interior hole, be characterized in that, thread mill drilling on the locking nut, the axis of threaded hole is perpendicular in screw thread
The axis in hole, and there are offset distances；Check bolt is set in the threaded hole, locking nut is formed by locking nut and check bolt
Assembly；There is a notch along locking nut axially through formula along 3 points of A, B, C on the locking nut, notch is L shape.
The nut check anti-loose method of anti-loose lock nut structure of the invention, is characterized in that, including walk as follows
It is rapid:
After axial locking, check bolt is fastened after the threaded interior hole installation of locking nut is fastened in installation axle for a installation
In the threaded hole of locking nut, locking nut assembly is formed by locking nut and check bolt；
B locking is locking, and when fastening check bolt, check bolt generates along check bolt axial direction, that is, F2 the notch of L shape
The power in direction, which is pressed on the internal screw thread of the incision of L shape on locking nut on the external screw thread of installation axle, in reaction
Under the action of power, locking nut L shape notch generates the power in a direction F1 to check bolt；F1 power and the reaction each other of F2 power
Power, F1 power and F2 power play the mutual locking effect of interlocking to locking nut and check bolt.
Compared with the prior art a kind of anti-loose lock nut structure of the present invention and nut check anti-loose method have
Substantive distinguishing features outstanding and marked improvement, 1, using on locking nut cut one along locking nut axially through " L " of formula
The internal screw thread of the incision of L shape is pressed on the outer of installation axle by the notch of shape, the axial force generated when fastening check bolt
On screw thread, so that the frictional force for increasing internal and external threads at this plays the role of preventing locking nut from loosening；2, it is not required to occupy too big
Axial space, assembly arrangement can be compacter；3, be not required to slot on the mounting shaft, installation and use process in internal and external threads not
It destroys, can be used repeatedly；4, it can be realized fast assembling-disassembling.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of locking nut of the invention；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is assembled state schematic diagram of the present invention；
Fig. 4 is Fig. 3 side view.
Specific embodiment:
In order to better understand and implement, providing specific embodiment with reference to the accompanying drawing, the present invention will be described in detail；Illustrated embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention.
Embodiment 1 processes threaded interior hole at 10 center of locking nut referring to Fig. 1,2,3,4, first processing locking nut 10
E, while the thread mill drilling D on locking nut 10, the axis of threaded hole D is perpendicular to the axis of threaded interior hole E, and there are offset distances
F installs check bolt 20 in threaded hole D, forms locking nut assembly by locking nut 10 and check bolt 20；In locking screw
One is cut along locking nut 10 axially through the notch 40 of formula along 3 points of A, B, C on mother 10, and notch 40 is L shape；Form this
The anti-loose lock nut structure of invention.
Using above-mentioned anti-loose lock nut structure, realizes nut check anti-loose method, include the following steps:
A installation, after the threaded interior hole E installation of locking nut 10 is fastened in the installation axle 30 for installing the part 50 that is locked additional, axis
Check bolt 20 is fastened in the threaded hole D of locking nut 10 to after locking, then with certain torque, by 10 He of locking nut
Check bolt 20 forms locking nut assembly；
B locking is locking, and when fastening check bolt 20, check bolt 20 generates the notch 40 of L shape axial along check bolt 20
Direction, that is, direction F2 power, the axial force cause 40 position of cut hole of the L shape of locking nut 10 to generate local deformation, and will lock
Internal screw thread on tight nut 10 at the notch 40 of L shape is pressed on the external screw thread for the installation axle 30 for installing the part 50 that is locked additional,
Play the role of preventing nut loosening to increase the frictional force of internal and external threads at this；Under the action of reaction force, locking screw
Female L shape notch 40 generates the power in a direction F1 to check bolt 20；F1 power and F2 power reaction force each other, F1 power and F2 power
The mutual locking effect of interlocking is played to locking nut 10 and check bolt 20.
Claims (2)
1. a kind of anti-loose lock nut structure, including locking nut (10), locking nut (10) center is threaded inner hole
(E), which is characterized in that thread mill drilling (D) on the locking nut (10), the axis of threaded hole (D) is perpendicular in screw thread
The axis in hole (E), and there are offset distance (F)；Check bolt (20) are set in the threaded hole (D), by locking nut (10) and are prevented
Loose bolt (20) forms locking nut assembly；Have on the locking nut (10) along 3 points of A, B, C one along locking screw mother's axle
To through notch (40), notch (40) is L shape.
2. the nut check anti-loose method of the anti-loose lock nut structure of claim 1, which comprises the steps of:
A installation after axial locking, will be prevented after threaded interior hole (E) installation of locking nut (10) is fastened on installation axle (30)
Loose bolt (20) is fastened in the threaded hole (D) of locking nut (10), forms lock by locking nut (10) and check bolt (20)
Tight nut assembly；
B locking is locking, and when fastening check bolt (20), check bolt (20) generates along check bolt the notch (40) of L shape
(20) internal screw thread at the notch (40) of L shape on locking nut (10) is pressed on by axial direction, that is, direction F2 power, the power
On the external screw thread of installation axle (30), under the action of reaction force, locking nut L shape notch (40) produces check bolt (20)
The power in a raw direction F1；F1 power and F2 power reaction force each other, F1 power and F2 power are to locking nut (10) and check bolt
(20) the mutual locking effect of interlocking is played.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811072246.4A CN109083913A (en) | 2018-09-14 | 2018-09-14 | A kind of anti-loose lock nut structure and nut check anti-loose method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811072246.4A CN109083913A (en) | 2018-09-14 | 2018-09-14 | A kind of anti-loose lock nut structure and nut check anti-loose method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109083913A true CN109083913A (en) | 2018-12-25 |
Family
ID=64841742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811072246.4A Withdrawn CN109083913A (en) | 2018-09-14 | 2018-09-14 | A kind of anti-loose lock nut structure and nut check anti-loose method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109083913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439912A (en) * | 2019-07-15 | 2019-11-12 | 东风商用车有限公司 | A kind of locking flange face bolt |
-
2018
- 2018-09-14 CN CN201811072246.4A patent/CN109083913A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439912A (en) * | 2019-07-15 | 2019-11-12 | 东风商用车有限公司 | A kind of locking flange face bolt |
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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: 20181225 |