CN204784088U - Locknut assembly - Google Patents
Locknut assembly Download PDFInfo
- Publication number
- CN204784088U CN204784088U CN201520370879.9U CN201520370879U CN204784088U CN 204784088 U CN204784088 U CN 204784088U CN 201520370879 U CN201520370879 U CN 201520370879U CN 204784088 U CN204784088 U CN 204784088U
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- China
- Prior art keywords
- nut
- mother
- thread
- effective cylinder
- mother nut
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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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a locknut assembly, it includes mother nut (1) and lock nut (2), mother nut (1) is overlapped on bolt (3), middle section (4) the surface of mother nut (1) be equipped with external screw thread I, mother nut (1) inside internal thread I that is equipped with, the internal thread I of mother nut (1) cooperatees with the external screw thread II of bolt (3), the inside internal thread II that is equipped with of front end of lock nut (2), lock nut (2) cooperate the back cover in mother nut (1) through the internal thread II of lock nut (2) and the external screw thread of mother nut (1) between I, the tail end of mother nut (1) is equipped with effective cylinder (5), root in effective cylinder (5) is close to I department of external screw thread and radially cuts fluted combination, the rear end of lock nut (2) is equipped with interior load wall (8) of laminating mutually with effective cylinder (5) of mother nut (1).
Description
Technical field
The utility model relates to lock nut assembly.
Background technique
Screw bolt and nut is usually used in the fixing of two or more connecting part, in being linked and packed, be unable to do without fastening piece.Fastening piece brings conveniently to mechanical industry, but it has an inevitable weakness, namely can get loose voluntarily in the environment of high vibration and varying load, causes parts or complete device damage, disintegration, very causes and lead to security incident.For solving the problem that gets loose of fastening piece, from threaded fastener is born, the scientists and engineers of many countries has done a large amount of tests and has ground in the world.Lock nut originates from abroad, it is attached on screw thread so that special engineering plastics are permanent, make internal and external threads be extruded and produce powerful reaction force tightening engineering plastics in process, substantially increase the frictional force between internal and external threads, provide the absolute resistance to vibration.This resistance is distributed in the whole engaged section of internal and external threads completely, and the constrictive pressure between this frictional force and internal and external threads has nothing to do, retaining method different from the past, lean on be pressure after screw tightens and the frictional force produced plays retaining effect, once screw is slightly loose, pressure reduces, and namely frictional force rapidly disappear and lose retaining effect, so that screw gets loose.But the locking mode of plastics is affected by environment, high temperature and severe cold requirement can not be met.
The anti-loose method of existing state internal thread has multiple, wherein increase the method for frictional force just like arranging the methods etc. such as spring washer, double nut, lock washer, binding nut, nylon inserts, chemical gluing, but reliability is unstable under heavy duty, high vibration, severe environmental conditions; Machinery anti-loose method is just like slotted nut, cotter pin, lock washer, steel wire serial connection, concave cone locking etc., but some is by structural limitations, can not reuse; Structure anti-loose method has cone pressure enclasping type locking, can not extensive use owing to manufacturing that complexity, cost are high, and main body there will be fracture, damages phenomenon when torsion is large, can not deal with problems at all and have potential safety hazard, say nothing of the requirement adapting to this high standard of electrification contact network, complex condition, a kind of new loosing Prevention Technology must be explored.
Summary of the invention
The utility model provides lock nut assembly, it makes mother nut effective cylinder internal thread hold the meshing enclasping type safe self-locking lock nut of external thread of screw tightly by nut configuration compressing, realize thread engagement section thread form mutually to hold tightly, produce huge frictional force and can improve anti-loosing effect, to meet the locking requirement of various high standard, complex condition.
The utility model have employed following technological scheme: a kind of lock nut assembly, it comprises mother nut and locking nut, mother nut is enclosed within bolt, the stage casing outer surface of described mother nut is provided with outside thread I, mother nut inside is provided with internal thread I, the internal thread I of mother nut matches with the outside thread II of bolt, the inside, front end of described locking nut is provided with internal thread II, locking nut is enclosed within mother nut after coordinating between the internal thread II of locking nut and the outside thread I of mother nut, the tail end of mother nut is provided with effective cylinder, at the root of effective cylinder near the fluted combination of outside thread I place radial cut, load wall in the rear end of locking nut is provided with and fits with effective cylinder of mother nut.
Described outside thread I is set to fine thread, and the internal thread II of locking nut is set to fine thread.Described interior load wall thickness is 1-5mm.The front end of described mother nut outside is set to outer hexagonal shaped shape, and the outer installment of locking nut is outer hexagonal shaped shape, and the outer hexagonal shaped shape of mother nut is consistent with the outer hexagonal shaped shape of locking nut.The utility model is when groove combination is arranged as a whole groove, and the end face correspondence of described effective cylinder tail end is set to angled end-face.The utility model is when groove combination comprises two symmetries groove in opposite directions, and the end face correspondence of described effective cylinder tail end is set to curved end.The end face of described effective cylinder tail end contacts with the interior load wall of locking nut.The leading portion end face of described effective cylinder is connected with one section of end face transition by the tangent plane of a length of tape angle or arc.
The utility model has following beneficial effect: after have employed above technological scheme, the utility model it comprise mother nut and locking nut, mother nut is enclosed within bolt, the outer surface in the stage casing of described mother nut is provided with outside thread I, the inside of mother nut is provided with internal thread I, the internal thread I of mother nut matches with the outside thread II of bolt, the tail end of mother nut is provided with effective cylinder, at the root of effective cylinder near the fluted combination of outside thread I place radial cut, the inside, front end of described locking nut is provided with internal thread II, the internal thread II of locking nut matches with outside thread I, load wall in the rear end of locking nut is provided with and fits with effective cylinder of mother nut, described outside thread I is set to fine thread, the internal thread II of locking nut is set to fine thread, its arterial railway electrified contacting nets and other moving elements fastening on, so not only expand locking nut and draw the moment in time receiving, and the self-locking anti-loosing that fine thread coordinates is effective, thus achieve thread engagement section thread form and mutually hold tightly, produce huge frictional force and effectively can improve anti-loosing effect, meet various high standard, the anti-loosing effect of complex condition, effectively protect workpiece.The utility model structure is simple in addition, and fabricating cost is low, easy to use, and its anti-loosening locking power is higher than other lock nuts, and the safety being specially adapted to electrification contact network is locking.The utility model is provided with groove combination, this engaged section is made to have extendable room by when axially oppressing like this, the leading portion end face of the effective cylinder of the utility model is connected with one section of end face transition by the tangent plane of a length of tape angle or arc, makes the phenomenon that locking nut does not stick together when oppressing effective cylinder and kills like this.
Accompanying drawing explanation
Fig. 1 is the utility model using state figure.
Fig. 2 is the main pseudosection of mother nut in the utility model embodiment one.
Fig. 3 is the main pseudosection of mother nut in the utility model embodiment two.
Fig. 4 is the front sectional view of the utility model locking nut.
Fig. 5 is the left view of the utility model locking nut.
Embodiment
Embodiment one, at Fig. 2, in Fig. 4 and Fig. 5, the utility model provides a kind of lock nut assembly, it comprises mother nut 1 and locking nut 2, mother nut 1 is enclosed within bolt 3, stage casing 4 outer surface of described mother nut 1 is provided with outside thread I, mother nut 1 inside is provided with internal thread I, the internal thread I of mother nut 1 matches with the outside thread II of bolt 3, the inside, front end of described locking nut 2 is provided with internal thread II, locking nut 2 is enclosed within mother nut 1 after coordinating between the internal thread II of locking nut 2 and the outside thread I of mother nut 1, outside thread I is set to fine thread, outside thread I is set to large diameter fine thread especially, the internal thread II of locking nut 2 is set to fine thread, internal thread II is set to large diameter fine thread especially, the tail end of mother nut 1 is provided with effective cylinder 5, at the root of effective cylinder 5 near the fluted combination of outside thread I place radial cut, when groove combination 6 comprises two symmetries groove 7 in opposite directions, the end face correspondence of described effective cylinder 5 tail end is set to curved end 10, thus make outside thread I have extendable room with the engaged section of internal thread II by when axially oppressing, load wall 8 in the rear end of locking nut 2 is provided with and fits with effective cylinder 5 of mother nut 1, described interior load wall 8 thickness is 1-5mm, the end face of described effective cylinder 5 tail end contacts with the interior load wall of locking nut 2, the leading portion end face of described effective cylinder 5 is connected with one section of end face transition by the tangent plane of a length of tape angle or arc, the front end of described mother nut 1 outside is set to outer hexagonal shaped shape, the outer installment of locking nut 2 is outer hexagonal shaped shape, the outer hexagonal shaped shape of mother nut 1 is consistent with the outer hexagonal shaped shape of locking nut 2.When the utility model screws and tightens up, locking nut 4 pulling force produced that travels forward makes effective cylinder 5 tighten up to outside thread I place, to make in effective cylinder 5 of mother nut 1 tooth by outer for bolt 3 tooth engagement locking, reaches the object protecting workpiece simultaneously.Because of load wall 8 in curved end 10 pairs of locking nuts 4 of effective cylinder 5 of mother nut 1 reaction force and outside thread I is tightened above time produce axial tension acting in conjunction, mother nut 1 is made forever to be in relative static conditions with locking nut 4 and bolt 3, form an entirety, so reach long-term tight object.
Embodiment two, at Fig. 1, Fig. 3, in Fig. 4 and Fig. 5, the utility model provides a kind of lock nut assembly, it comprises mother nut 1 and locking nut 2, mother nut 1 is enclosed within bolt 3, stage casing 4 outer surface of described mother nut 1 is provided with outside thread I, mother nut 1 inside is provided with internal thread I, the internal thread I of mother nut 1 matches with the outside thread II of bolt 3, the inside, front end of described locking nut 2 is provided with internal thread II, locking nut 2 is enclosed within mother nut 1 after coordinating between the internal thread II of locking nut 2 and the outside thread I of mother nut 1, outside thread I is set to fine thread, outside thread I is set to large diameter fine thread especially, the internal thread II of locking nut 2 is set to fine thread, internal thread II is set to large diameter fine thread especially, the tail end of mother nut 1 is provided with effective cylinder 5, at the root of effective cylinder 5 near the fluted combination of outside thread I place radial cut, when groove combination 6 arranges as a whole groove 6, the end face correspondence of described effective cylinder 5 tail end is set to angled end-face 9, thus make outside thread I have extendable room with the engaged section of internal thread II by when axially oppressing, load wall 8 in the rear end of locking nut 2 is provided with and fits with effective cylinder 5 of mother nut 1, described interior load wall 8 thickness is 1-5mm, the end face of described effective cylinder 5 tail end contacts with the interior load wall of locking nut 2, the leading portion end face of described effective cylinder 5 is connected with one section of end face transition by the tangent plane of a length of tape angle or arc, the front end of described mother nut 1 outside is set to outer hexagonal shaped shape, the outer installment of locking nut 2 is outer hexagonal shaped shape, the outer hexagonal shaped shape of mother nut 1 is consistent with the outer hexagonal shaped shape of locking nut 2.When the utility model screws and tightens up, locking nut 4 pulling force produced that travels forward makes effective cylinder 5 tighten up to outside thread I place, to make in effective cylinder 5 of mother nut 1 tooth by outer for bolt 3 tooth engagement locking, reaches the object protecting workpiece simultaneously.Because of load wall 8 in angled end-face 9 pairs of locking nuts 4 of effective cylinder 5 of mother nut 1 reaction force and outside thread I is tightened above time produce axial tension acting in conjunction, mother nut 1 is made forever to be in relative static conditions with locking nut 4 and bolt 3, form an entirety, so reach long-term tight object.
Claims (8)
1. a lock nut assembly, it is characterized in that it comprises mother nut (1) and locking nut (2), mother nut (1) is enclosed within bolt (3), stage casing (4) outer surface of described mother nut (1) is provided with outside thread I, mother nut (1) inside is provided with internal thread I, the internal thread I of mother nut (1) matches with the outside thread II of bolt (3), the inside, front end of described locking nut (2) is provided with internal thread II, locking nut (2) is enclosed within mother nut (1) after coordinating between the internal thread II of locking nut (2) and the outside thread I of mother nut (1), the tail end of mother nut (1) is provided with effective cylinder (5), at the root of effective cylinder (5) near the fluted combination of outside thread I place radial cut, the rear end of locking nut (2) is provided with the interior load wall (8) fitted with effective cylinder (5) of mother nut (1).
2. lock nut assembly according to claim 1, it is characterized in that described outside thread I is set to fine thread, the internal thread II of locking nut (2) is set to fine thread.
3. lock nut assembly according to claim 1, is characterized in that described interior load wall (8) thickness is 1-5mm.
4. lock nut assembly according to claim 1, it is characterized in that the front end of described mother nut (1) outside is set to outer hexagonal shaped shape, the outer installment of locking nut (2) is outer hexagonal shaped shape, and the outer hexagonal shaped shape of mother nut (1) is consistent with the outer hexagonal shaped shape of locking nut (2).
5. lock nut assembly according to claim 1, is characterized in that the end face correspondence of described effective cylinder (5) tail end is set to angled end-face (9) when groove combination (6) arranges as a whole groove (6).
6. lock nut assembly according to claim 1, is characterized in that, when groove combination (6) comprises two symmetries groove in opposite directions (7), the end face correspondence of described effective cylinder (5) tail end is set to curved end (10).
7. lock nut assembly according to claim 1, is characterized in that the end face of described effective cylinder (5) tail end contacts with the interior load wall (8) of locking nut (2).
8. lock nut assembly according to claim 1, is characterized in that the leading portion end face of described effective cylinder (5) is connected with one section of end face transition by the tangent plane of a length of tape angle or arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520370879.9U CN204784088U (en) | 2015-06-02 | 2015-06-02 | Locknut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520370879.9U CN204784088U (en) | 2015-06-02 | 2015-06-02 | Locknut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784088U true CN204784088U (en) | 2015-11-18 |
Family
ID=54524143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520370879.9U Withdrawn - After Issue CN204784088U (en) | 2015-06-02 | 2015-06-02 | Locknut assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930040A (en) * | 2015-06-02 | 2015-09-23 | 李武彬 | Locknut assembly |
-
2015
- 2015-06-02 CN CN201520370879.9U patent/CN204784088U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930040A (en) * | 2015-06-02 | 2015-09-23 | 李武彬 | Locknut assembly |
| CN104930040B (en) * | 2015-06-02 | 2019-09-10 | 李武彬 | A kind of stop nut assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang Hong Qiang Railway Equipment Co., Ltd. Assignor: Li Wubin Contract record no.: 2016320000229 Denomination of utility model: Locknut assembly Granted publication date: 20151118 License type: Exclusive License Record date: 20161228 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20190910 |