CN104930040A - Locknut assembly - Google Patents
Locknut assembly Download PDFInfo
- Publication number
- CN104930040A CN104930040A CN201510294840.8A CN201510294840A CN104930040A CN 104930040 A CN104930040 A CN 104930040A CN 201510294840 A CN201510294840 A CN 201510294840A CN 104930040 A CN104930040 A CN 104930040A
- Authority
- CN
- China
- Prior art keywords
- nut
- mother
- thread
- locking nut
- 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.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 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
- 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
- F16B37/00—Nuts or like thread-engaging members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Clamps And Clips (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The invention discloses a locknut assembly which comprises a main nut (1) and a locking nut (2). A bolt (3) is sleeved with the main nut (1). An external thread I is arranged on the outer surface of a middle segment (4) of the main nut (1). An internal thread I is arranged in the main nut (1). The internal thread I of the main nut (1) is matched with an external thread II of the bolt (3). An internal thread II is arranged in the front end of the locking nut (2). The main nut (1) is sleeved with the locking nut (1) after the internal thread II of the locking nut (2) is matched with the external thread I of the main nut (1). A valid column (5) is arranged at the tail end of the main nut (1). A groove combination is cut in the position, close to the external thread I, of the root of the valid column (5) in the radial direction. An inner force bearing wall (8) attached to the valid column (5) of the main nut (1) is arranged at the rear end of the locking nut (8).
Description
Technical field
The present invention relates to a kind of 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 invention provides a kind of 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.
Present invention employs 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 present invention 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 present invention 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 present invention has following beneficial effect: after have employed above technological scheme, the present invention 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.Structure of the present invention 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 present invention 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 present invention 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 using state figure of the present invention.
Fig. 2 is the main pseudosection of mother nut in the embodiment of the present invention one.
Fig. 3 is the main pseudosection of mother nut in the embodiment of the present invention two.
Fig. 4 is the front sectional view of locking nut of the present invention.
Fig. 5 is the left view of locking nut of the present invention.
Embodiment
Embodiment one, at Fig. 2, in Fig. 4 and Fig. 5, the invention 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 present invention 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 invention 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 present invention 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 |
|---|---|---|---|
| CN201510294840.8A CN104930040B (en) | 2015-06-02 | 2015-06-02 | A kind of stop nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294840.8A CN104930040B (en) | 2015-06-02 | 2015-06-02 | A kind of stop nut assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930040A true CN104930040A (en) | 2015-09-23 |
| CN104930040B CN104930040B (en) | 2019-09-10 |
Family
ID=54117374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510294840.8A Active CN104930040B (en) | 2015-06-02 | 2015-06-02 | A kind of stop nut assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104930040B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179436A (en) * | 2015-10-19 | 2015-12-23 | 上海格姆特紧固技术有限公司 | Deformed-face grooved locknut |
| CN105465143A (en) * | 2016-01-17 | 2016-04-06 | 江苏金鼎钢结构有限公司 | Elastic pressure uniformizing type locking nut device |
| CN105937538A (en) * | 2016-05-20 | 2016-09-14 | 李武彬 | Structure of locknut and locking adjusting method for locknut |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE853081C (en) * | 1950-03-19 | 1952-10-20 | Rudolf Spieth | Device for eliminating the play between threaded parts associated with one another |
| GB2119886A (en) * | 1982-05-05 | 1983-11-23 | Alan Elgar Herbert Ellis | Self-locking nuts |
| US20050260057A1 (en) * | 2004-05-21 | 2005-11-24 | Hiroaki Migita | Looseness preventive nut |
| CN204784088U (en) * | 2015-06-02 | 2015-11-18 | 李武彬 | Locknut assembly |
-
2015
- 2015-06-02 CN CN201510294840.8A patent/CN104930040B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE853081C (en) * | 1950-03-19 | 1952-10-20 | Rudolf Spieth | Device for eliminating the play between threaded parts associated with one another |
| GB2119886A (en) * | 1982-05-05 | 1983-11-23 | Alan Elgar Herbert Ellis | Self-locking nuts |
| US20050260057A1 (en) * | 2004-05-21 | 2005-11-24 | Hiroaki Migita | Looseness preventive nut |
| CN204784088U (en) * | 2015-06-02 | 2015-11-18 | 李武彬 | Locknut assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179436A (en) * | 2015-10-19 | 2015-12-23 | 上海格姆特紧固技术有限公司 | Deformed-face grooved locknut |
| CN105465143A (en) * | 2016-01-17 | 2016-04-06 | 江苏金鼎钢结构有限公司 | Elastic pressure uniformizing type locking nut device |
| CN105937538A (en) * | 2016-05-20 | 2016-09-14 | 李武彬 | Structure of locknut and locking adjusting method for locknut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104930040B (en) | 2019-09-10 |
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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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211118 Address after: 225300 Room 204, building 1, 168 Fenghuang West Road, Taizhou City, Jiangsu Province Patentee after: Jiangsu hanzhijin Technology Co.,Ltd. Address before: 225300 402, room 3, 121 Yangzhou Road, Hailing District, Taizhou, Jiangsu. Patentee before: Li Wubin |
|
| TR01 | Transfer of patent right |