CN104930040B - A kind of stop nut assembly - Google Patents

A kind of stop nut assembly Download PDF

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Publication number
CN104930040B
CN104930040B CN201510294840.8A CN201510294840A CN104930040B CN 104930040 B CN104930040 B CN 104930040B CN 201510294840 A CN201510294840 A CN 201510294840A CN 104930040 B CN104930040 B CN 104930040B
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China
Prior art keywords
screw thread
nut
main nut
main
locking
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CN201510294840.8A
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Chinese (zh)
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CN104930040A (en
Inventor
李武彬
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Jiangsu Hanzhijin Technology Co ltd
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Individual
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00Nuts or like thread-engaging members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention discloses a kind of stop nut assemblies, it includes main nut (1) and locking nut (2), main nut (1) covers on bolt (3), middle section (4) outer surface of the main nut (1) is equipped with external screw thread I, internal screw thread I is equipped with inside main nut (1), the internal screw thread I of main nut (1) is matched with the external screw thread II of bolt (3), internal screw thread II is equipped with inside the front end of the locking nut (2), locking nut (2) is by cooperation rear enclosure between the internal screw thread II of locking nut (2) and the external screw thread I of main nut (1) in main nut (1), the tail end of main nut (1) is equipped with effective cylinder (5), the fluted combination of radial cut at external screw thread I in the root of effective cylinder (5), the rear end of locking nut (2) is equipped with effective cylinder (5) with main nut (1) The interior load wall (8) to fit.

Description

A kind of stop nut assembly
Technical field
The present invention relates to a kind of stop nut assemblies.
Background technique
Screw bolt and nut is usually used in the fixation of more than two engaging portions, and fastener is be unable to do without in being linked and packed.Fastener It is brought conveniently to mechanical industry, but it has an inevitable weakness, i.e., in high vibration and the environment of varying load It can voluntarily loosen, cause component or a complete equipment damage, disintegrate, very cause to lead to safety accident.To solve fastener Loosen problem, since threaded fastener be born, in the world the scientists and engineers of many countries made it is a large amount of test with It grinds.For stop nut originating from foreign countries, it is attached on screw thread so that special engineering plastics are permanent, and internal and external threads are being tightened Engineering plastics are extruded and generate powerful reaction force in the process, substantially increase the frictional force between internal and external threads, mention The absolute resistance to vibration is supplied.This resistance is fully distributed in the entire engaged section of internal and external threads, and the frictional force with it is interior Constrictive pressure between external screw thread is unrelated, retaining method different from the past, and that leans on is pressure after screw tightens and generates Frictional force plays retaining, once screw is slightly loose, pressure is reduced, and frictional force rapidly disappears and loses retaining effect, so that spiral shell Silk loosens.But the locking mode of plastics is affected by environment, is not able to satisfy high temperature and severe cold requirement.
There are many anti-loose methods of existing state's internal screw thread, wherein increasing the method for frictional force just like setting spring washer, double The methods of nut, lock washer, binding nut, nylon inserts, chemical gluing etc., but in heavy duty, high vibration, adverse circumstances item Reliability is unstable under part;Mechanical anti-loose method is just like slotted nut, split pin, stop washer, steel wire concatenation, concave cone locking Deng, but some are architectural limitation, and cannot reuse;Construction anti-loose method has cone pressure tight-holding type locking, due to manufacture is complicated, It is at high cost to be widely applied, and in the case where torsion is big, main body will appear fracture, damage phenomenon, cannot solve the problems, such as at all And security risk is had, needless to say adapt to the requirement of electrification contact network this high standard, complex condition, it is necessary to Explore a kind of new loosing Prevention Technology.
Summary of the invention
The present invention provides a kind of stop nut assemblies, it makes the effective cylinder internal screw thread of main nut by nut construction compressing It holds the ratcheting tight-holding type safe self-locking stop nut of external thread of screw tightly, realizes that screw thread engaged section thread form is mutually held tightly, generate huge Anti-loosing effect can be improved in big frictional force, to meet the locking requirement of various high standards, complex condition.
The invention adopts the following technical scheme: a kind of stop nut assembly, it includes main nut and locking nut, master Nut covers on bolt, and the middle section outer surface of the main nut is equipped with external screw thread I, is equipped with internal screw thread I, main spiral shell inside main nut Female internal screw thread I is matched with the external screw thread II of bolt, and internal screw thread II, locking screw are equipped with inside the front end of the locking nut By cooperation rear enclosure between the internal screw thread II of locking nut and the external screw thread I of main nut, in main nut, the tail end of main nut is set mother Effective cylinder, the fluted combination of radial cut at external screw thread I in the root of effective cylinder, the rear end of locking nut be equipped with The interior load wall that effective cylinder of main nut fits.
The external screw thread I is set as fine thread, and the internal screw thread II of locking nut is set as fine thread.Described is interior Load wall thickness is 1-5mm.Front end outside the main nut is set as outer hexagon shape, the external setting of locking nut For outer hexagon shape, the outer hexagon shape of main nut and the outer hexagon shape of locking nut are consistent.The present invention is set when groove combination When being set to the groove of an entirety, the end face of effective cylinder tail end is correspondingly arranged as angled end-face.The present invention works as groove group It closes when including two symmetrical opposite grooves, the end face of effective cylinder tail end is correspondingly arranged as curved end.Described has The end face of effect cylinder tail end is in contact with the interior load wall of locking nut.The leading portion end face of effective cylinder is by one section of band angle The section of degree or arc is connected with one section of end face transition.
The invention has the following advantages: use above technical scheme after, the present invention it include main nut and locking Nut, main nut cover on bolt, and the outer surface in the middle section of the main nut is equipped with external screw thread I, and the inside of main nut is equipped with Internal screw thread I, the internal screw thread I of main nut are matched with the external screw thread II of bolt, and the tail end of main nut is equipped with effective cylinder, effective The front end inside of the fluted combination of radial cut at external screw thread I of the root of cylinder, the locking nut is equipped with internal screw thread II, The internal screw thread II of locking nut is matched with external screw thread I, and the rear end of locking nut is equipped with to fit with effective cylinder of main nut Interior load wall, the external screw thread I is set as fine thread, and the internal screw thread II of locking nut is set as fine thread, it leads In the fastening for wanting electrification contact network and other moving components, locking nut is not only expanded in this way in the power for drawing the time receiving Square, and the self-locking anti-loosing effect of fine thread cooperation is good, mutually holds tightly to realize screw thread engaged section thread form, generates huge Frictional force can effectively improve anti-loosing effect, meet the anti-loosing effect of various high standards, complex condition, be effectively protected Workpiece.In addition the configuration of the present invention is simple, low manufacture cost is easy to use, and anti-loosening locking power is higher than other stop nuts, especially Safety suitable for electrification contact network is locking.The present invention is combined equipped with groove, so that the engaged section is by axial pressure There is extendable room when urgent, the leading portion end face of the effective cylinder of the present invention is by one section of section with angle or arc and one section of end face mistake It crosses connected, so that the phenomenon that locking nut does not stick together and kills when oppressing effective cylinder.
Detailed description of the invention
Fig. 1 is usage state diagram of the present invention.
Fig. 2 is the main view sectional view of main nut in the embodiment of the present invention one.
Fig. 3 is the main view sectional view of main 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.
Specific embodiment
Embodiment one, in Fig. 2, Fig. 4 and Fig. 5, the present invention provides a kind of stop nut assemblies, it includes master Nut 1 and locking nut 2,1 set of main nut on bolt 3,4 outer surface of middle section of the main nut 1 is equipped with External screw thread I is equipped with internal screw thread I inside main nut 1, and the internal screw thread I of main nut 1 is matched with the external screw thread II of bolt 3, Internal screw thread II is equipped with inside the front end of the locking nut 2, locking nut 2 passes through the internal screw thread II of locking nut 2 Cooperate rear enclosure in main nut 1 between the external screw thread I of main nut 1, external screw thread I is set as fine thread, and external screw thread I is special It is set as the fine thread of major diameter, the internal screw thread II of locking nut 2 is set as fine thread, and internal screw thread II is particularly configured to The tail end of the fine thread of major diameter, main nut 1 is equipped with effective cylinder 5, in the root of effective cylinder 5 close to external screw thread I Locate the fluted combination of radial cut, when groove combination 6 includes two symmetrical opposite groove 7,5 tail of effective cylinder The end face at end is correspondingly arranged as curved end 10, so that the engaged section of external screw thread I and internal screw thread II be made to be oppressed Shi Youshen by axial Contracting space, the rear end of locking nut 2 is equipped with the interior load wall 8 to fit with effective cylinder 5 of main nut 1, described Interior load wall 8 is with a thickness of 1-5mm, the end face of 5 tail end of effective cylinder and the interior load wall phase of locking nut 2 Contact, the leading portion end face of effective cylinder 5 are connected by one section of section with angle or arc with one section of end face transition, Front end outside the main nut 1 is set as outer hexagon shape, and the outside of locking nut 2 is set as outer hexagon shape, The outer hexagon shape of main nut 1 and the outer hexagon shape of locking nut 2 are consistent.When the present invention screws tightening, locking nut 4 pulling force for travelling forward generation make effective cylinder 5 to tightening at external screw thread I, make 5 interior tooth of effective cylinder of main nut 1 The outer tooth of bolt 3 is engaged into locking, while achieving the purpose that protect workpiece.Because of the arc end of effective cylinder 5 of main nut 1 The axial tension that face 10 generates when tightening to the reaction force and front external screw thread I of the interior load wall 8 of locking nut 4 is total Same-action makes main nut 1 and locking nut 4 and bolt 3 forever in relative static conditions, forms an entirety, therefore And reach long-term tight purpose.
Embodiment two, in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the present invention provides a kind of stop nut assemblies, it is wrapped Include main nut 1 and locking nut 2,1 set of main nut on bolt 3,4 outer surface of middle section of the main nut 1 Equipped with external screw thread I, internal screw thread I, II phase of external screw thread of the internal screw thread I and bolt 3 of main nut 1 are equipped with inside main nut 1 The front end inside of cooperation, the locking nut 2 is equipped with internal screw thread II, and locking nut 2 passes through the interior spiral shell of locking nut 2 Cooperate rear enclosure in main nut 1 between line II and the external screw thread I of main nut 1, external screw thread I is set as fine thread, and external screw thread I is special It is not set as the fine thread of major diameter, the internal screw thread II of locking nut 2 is set as fine thread, and internal screw thread II is especially arranged Tail end for the fine thread of major diameter, main nut 1 is equipped with effective cylinder 5, in the root of effective cylinder 5 close to outer spiral shell The fluted combination of radial cut at line I, when groove combination 6 is set as the groove 6 of an entirety, effective cylinder 5 The end face of tail end is correspondingly arranged as angled end-face 9, so that the engaged section of external screw thread I and internal screw thread II be made to be oppressed Shi Youshen by axial Contracting space, the rear end of locking nut 2 is equipped with the interior load wall 8 to fit with effective cylinder 5 of main nut 1, described Interior load wall 8 is with a thickness of 1-5mm, the end face of 5 tail end of effective cylinder and the interior load wall phase of locking nut 2 Contact, the leading portion end face of effective cylinder 5 are connected by one section of section with angle or arc with one section of end face transition, Front end outside the main nut 1 is set as outer hexagon shape, and the outside of locking nut 2 is set as outer hexagon shape, The outer hexagon shape of main nut 1 and the outer hexagon shape of locking nut 2 are consistent.When the present invention screws tightening, locking nut 4 The pulling force of generation of travelling forward tightens effective cylinder 5 at external screw thread I, makes 5 interior tooth of effective cylinder of main nut 1 will The outer tooth of bolt 3 engages locking, while achieving the purpose that protect workpiece.Because of the angled end-face 9 of effective cylinder 5 of main nut 1 The axial tension that reaction force and front external screw thread I to the interior load wall 8 of locking nut 4 generate when tightening is made jointly With, make main nut 1 and locking nut 4 and bolt 3 forever in relative static conditions, forms an entirety, so reach To long-term tight purpose.

Claims (4)

1. a kind of stop nut assembly, including main nut (1) and locking nut (2), main nut (1) cover on bolt (3), institute Middle section (4) outer surface for stating main nut (1) is equipped with external screw thread I, is equipped with internal screw thread I inside main nut (1), main nut (1) it is interior Screw thread I is matched with the external screw thread II of bolt (3), and internal screw thread II, locking screw are equipped with inside the front end of the locking nut (2) Female (2) pass through cooperates rear enclosure on main nut (1) between its internal screw thread II and the external screw thread I of main nut (1), the main nut (1) tail portion is equipped with effective cylinder (5), in the root of effective cylinder (5) close to the fluted combination of external screw thread radial cut, locking screw The rear end of female (2) is equipped with to fit interior load wall (8) with effective cylinder (5), it is characterised in that: the groove combination settings For an entirety groove (6) when, effective cylinder (5) tail end end face is set as angled end-face (9);The groove combination settings When for two symmetrical opposite groove (7), effective cylinder (5) tail end end face is set as curved end (10).
2. stop nut assembly according to claim 1, it is characterised in that the external screw thread I, internal screw thread II are closely-pitched Screw thread.
3. stop nut assembly according to claim 1, it is characterised in that be positive six sides outside main nut (1) leading portion Shape, the outside of the locking nut (2) are and regular hexagon shape consistent outside the main nut (1) leading portion.
4. the stop nut assembly according to claim 1, it is characterized in that the leading portion end face of effective cylinder (5) by One section of section with angle or arc is connected with one section of end face transition.
CN201510294840.8A 2015-06-02 2015-06-02 A kind of stop nut assembly Active CN104930040B (en)

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

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Application Number Priority Date Filing Date Title
CN201510294840.8A CN104930040B (en) 2015-06-02 2015-06-02 A kind of stop nut assembly

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CN104930040A CN104930040A (en) 2015-09-23
CN104930040B true CN104930040B (en) 2019-09-10

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
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 (3)

* Cited by examiner, † Cited by third party
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
CN204784088U (en) * 2015-06-02 2015-11-18 李武彬 Locknut assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050111219A (en) * 2004-05-21 2005-11-24 가부시키가이샤 에코 월드 Self-locking nut and method for producing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
CN204784088U (en) * 2015-06-02 2015-11-18 李武彬 Locknut assembly

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Publication number Publication date
CN104930040A (en) 2015-09-23

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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