CN105937538A - Structure of locknut and locking adjusting method for locknut - Google Patents
Structure of locknut and locking adjusting method for locknut Download PDFInfo
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- CN105937538A CN105937538A CN201610337131.8A CN201610337131A CN105937538A CN 105937538 A CN105937538 A CN 105937538A CN 201610337131 A CN201610337131 A CN 201610337131A CN 105937538 A CN105937538 A CN 105937538A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229920000965 Duroplast Polymers 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 241001347978 Major minor Species 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 208000033999 Device damage Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 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
- 239000013589 supplement 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
- F16B39/126—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a structure of a locknut. A main nut (2) comprises a nut head (4), a middle screw joint section (5) and a tail adjusting section (7) from front to back. An external thread I (6) is arranged on the surface of the middle screw joint section (5). The perimeter of the nut head (4) is larger than that of the middle screw joint section (5). The diameter of the middle screw joint section (5) is larger than that of the tail adjusting section (7). The diameter of a front-section internal screw hole (8) of an auxiliary nut (3) is larger than that of a back-section internal screw hole (9) of the auxiliary nut (3). A front internal thread II (10) is arranged on the inner wall of the front-section internal screw hole (8). A back internal thread III (11) is arranged on the inner wall of the back-section internal screw hole (9). The invention further discloses a locking adjusting method between the main nut and the auxiliary nut of the locknut. By the adoption of the structure of the locknut and the locking adjusting method, a fastened workpiece is protected, it is guaranteed that looseness of all the locking links in various bad working environments such as frequent vibration and load fluctuation is avoided, and the real constant looseness-prevention effect is achieved.
Description
Technical field
The present invention relates to the structure of a kind of stop nut and locking control method thereof.
Background technology
Screw bolt and nut is usually used in the fixing of two or more joint portion, be unable to do without securing member in being linked and packed.Securing member brings conveniently to mechanical industry, but it has an inevitable weakness, i.e. can get loose voluntarily in the environment of high vibration and varying load, causes parts or complete device damage, a disintegration, very causes to lead to security incident.For solving the problem that gets loose of securing member, from the beginning of threaded fastener is born, the scientists and engineers of many countries has made substantial amounts of test and has ground in the world.Stop nut originates from abroad, it is to be attached on screw thread so that special engineering plastics are permanent, make internal and external threads engineering plastics during tightening be extruded and produce powerful counteracting force, substantially increase the frictional force between internal and external threads, it is provided that the absolute resistance to vibration.This resistance is fully distributed in the whole engaged section of internal and external threads, and constrictive pressure between this frictional force with internal and external threads is unrelated, retaining method different from the past, lean on be the pressure after screw tightens and the frictional force that produces plays retaining effect, once screw is the most loose, pressure reduces, and frictional force i.e. rapidly disappears and loses retaining effect, so that screw gets loose.But the locking mode of plastics is affected by environment, it is impossible to meet high temperature and severe cold requirement.
The anti-loose method of existing state female 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, chemistry gluing, but reliability instability under heavy duty, high vibration, severe environmental conditions；Machinery anti-loose method is just like slotted nut, split pin, stop washer, steel wire concatenation, concave cone locking etc., but some is architectural limitation, it is impossible to reuse；Structure anti-loose method have eccentric nut locking, cone pressure tight-holding type is locking, Tang Shi is locking, elastic press type is locking, owing to manufacturing complexity, cost height can not extensively be applied, and main body there will be fracture, damages phenomenon in the case of torsion is big, problem can not be solved at all and have potential safety hazard, not to mention adapt to this high standard of electrification contact network, the requirement of complex condition, it is necessary to explore a kind of new loosing Prevention Technology to meet demand.
Summary of the invention
The invention provides the structure of a kind of stop nut and locking control method thereof, it not only can ensure that and is not loosened by each link under the various harsh environments such as frequent vibration and load change, and can achieve bolt, the repeatedly using of major-minor nut.
nullPresent invention employs techniques below scheme: the structure of a kind of stop nut，It includes bolt、Mother nut and secondary nut，The central bore of described mother nut main body is provided with female thread I，The leading portion of mother nut is set to nipple heads，The stage casing of mother nut is set to the middle part section of being spirally connected，The surface of the middle part section of being spirally connected is provided with external screw thread I，The back segment of mother nut is set to afterbody regulation section，The girth of nipple heads is more than the girth of the middle part section of being spirally connected，The diameter of the middle part section of being spirally connected is more than the diameter of afterbody regulation section，The central bore of described secondary nut is divided into leading portion inner bolt hole and back segment inner bolt hole，The diameter of leading portion inner bolt hole is more than the diameter of back segment inner bolt hole，The inwall of leading portion inner bolt hole is provided with front female thread II，The inwall of back segment inner bolt hole is provided with rear female thread III，When mother nut is arranged on bolt with secondary nut，Mother nut is connected on bolt after being coordinated with the external screw thread II of bolt outer surface by female thread I，The be spirally connected external screw thread I of section surface of the secondary front female thread II of nut and the middle part of mother nut is connected，The secondary rear female thread III of nut is connected with the external screw thread II of bolt.
The described closely-pitched straight thread that external screw thread I is forward or reversely closely-pitched straight thread.The described taper thread that external screw thread I is forward or reversely taper thread.It is step-shaped transition between described leading portion inner bolt hole and back segment inner bolt hole.The length of described secondary nut leading portion inner bolt hole more than or equal to the middle part section of being spirally connected of mother nut and the length sum of afterbody regulation section, the length of back segment inner bolt hole more than or equal to the external screw thread II of bolt connect screw thread 1 tooth away from.
The profile of described mother nut is set to square column type, cylinder, Polygonal column shape, butterfly, flange or other obform bodies；The profile of secondary nut is set to square column type, cylinder, Polygonal column shape, butterfly, flange or other obform bodies.
Each end face of described mother nut main body is each perpendicular to the axial of bolt, and each end face of secondary nut main body is each perpendicular to the axial of bolt.The front female thread II of described secondary nut and the middle part of mother nut are spirally connected after the external screw thread I of section surface is connected, by adjusting front connecting length size between female thread II and external screw thread I, ensure that the female thread I of mother nut and the rear female thread III of secondary nut synchronize external screw thread II with bolt simultaneously and be connected, the front female thread II of secondary nut be spirally connected with the middle part of mother nut the external screw thread I of section surface is connected after inside and outside laminating be provided with gap between end face.Described mother nut is that carbon steel, rustless steel, steel alloy, alloy material, copper, aluminum or other metals are made, and secondary nut is that carbon steel, rustless steel, steel alloy, alloy material, copper, aluminum or other metals are made.Described mother nut be duroplasts, graphite or other to have the solid-state of intensity nonmetal, secondary nut be duroplasts, graphite or other to have the solid-state of intensity nonmetal.
nullLocking control method between mother nut and the secondary nut of stop nut of the present invention，It comprises the following steps: first by mother nut、After secondary nut is connected by the external screw thread I of the middle part section of being spirally connected，The while that the female thread I of adjustment connecting length size guarantee mother nut and the rear female thread III of secondary nut synchronizing, the external screw thread II with bolt is connected，It is provided with gap between the inside and outside laminating end face that the front female thread II of secondary nut is connected with the external screw thread I of the section surface that is spirally connected in the middle part of mother nut，Thus utilize the external screw thread I of mother nut and the front female thread II junction fine thread precession of secondary nut、Screw out the fit clearance of rear female thread III and ratcheting of the external screw thread II of bolt eliminating secondary nut，Make the rear female thread III of secondary nut eliminate with II ratcheting gap of external screw thread of bolt and produce the hugest frictional resistance and axial forward thrust F at whole circumferencial direction，Axial reaction force F simultaneously produced，Make the external screw thread I of mother nut be connected ratcheting gap with the front female thread II of secondary nut and eliminate generation frictional resistance and axial thrust F；Make in the central bore of mother nut main body the frictional resistance of original generation between female thread I with ratcheting of the external screw thread II of bolt superpose and axial thrust F simultaneously; the counteracting force F produced by F back action simultaneously is in secondary nut; therein defines frictional resistance and the axial force protection that three roads counteract each other; not only protect by fastening workpiece but also ensure not loosened by each locking link under the various harsh environments such as frequent vibration and load change, play the effect of real never becoming loose.
The method have the advantages that after have employed above technical scheme, the present invention can make the rear female thread III of secondary nut produce the hugest frictional resistance with ratcheting of the external screw thread II of bolt at whole circumferencial direction, the major-minor screw connection fine thread that the counteracting force simultaneously produced makes, ratcheting gap of mother nut connecting bolt inner hole thread eliminates and produces resistance, form the protection of triple frictional resistance, locking torque is big, locking is firmly, it it is one times of locking torque in the past, ensure not loosened by each link under the various harsh environments such as frequent vibration and load change, play the effect of real " never becoming loose ", additionally the globality of the present invention does not produce structural destruction, resistance to impact is bigger, bolt is achieved owing to each connecting portion screw thread life cycle is the longest, repeatedly using of major-minor nut.Present configuration is simple, intensity is big, stability is high, manufacturing process is simple, with low cost, be suitable for various under the conditions of high request locking fastening demand, achieve bolt, the repeatedly using of major-minor nut owing to each connecting portion screw thread life cycle is the longest.Present configuration is simple, intensity is big, stability is high, manufacturing process is simple, with low cost, be suitable for various under the conditions of high request locking fastening demand, to meet the locking requirement of various high standard, complex condition.Mother nut of the present invention is connected on bolt after being coordinated with the external screw thread II of bolt outer surface by female thread I, the external screw thread I of section surface of being spirally connected in the middle part of the front female thread II of secondary nut and mother nut is connected, the secondary rear female thread III of nut is connected with the external screw thread II of bolt, so locking is realized by three sections of screw threads, service life is long, simple in construction, cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is mother nut structural representation of the present invention.
Fig. 3 is pair nut structure schematic diagram of the present invention.
Detailed description of the invention
nullEmbodiment one，At Fig. 1、In Fig. 2 and Fig. 3，The invention discloses the structure of a kind of stop nut，Including bolt 1、Mother nut 2 and secondary nut 3，The central bore 14 of described mother nut 2 main body is provided with female thread I 13，The leading portion of mother nut 2 is set to nipple heads 4，The stage casing of mother nut 2 is set to the middle part section of being spirally connected 5，The surface of the middle part section of being spirally connected 5 is provided with external screw thread I 6，External screw thread I 6 is the closely-pitched straight thread of forward or reverse closely-pitched straight thread，External screw thread I 6 can also be the taper thread of forward or reverse taper thread，The back segment of mother nut 2 is set to afterbody regulation section 7，The girth of nipple heads 4 is more than the girth of the middle part section of being spirally connected 5，The diameter of the middle part section of being spirally connected 5 is more than the diameter of afterbody regulation section 7，The central bore of described secondary nut 3 is divided into leading portion inner bolt hole 8 and back segment inner bolt hole 9，The diameter of leading portion inner bolt hole 8 is more than the diameter of back segment inner bolt hole 9，It is step-shaped transition between described leading portion inner bolt hole 8 and back segment inner bolt hole 9，The inwall of leading portion inner bolt hole 8 is provided with front female thread II 10，The inwall of back segment inner bolt hole 9 is provided with rear female thread III 11，When mother nut 2 is arranged on bolt 1 with secondary nut 3，Mother nut 2 is connected on bolt 1 after being coordinated with the external screw thread II 12 of bolt 1 outer surface by female thread I 13，The be spirally connected external screw thread I 6 of section surface 5 of the secondary front female thread II 10 of nut 3 and the middle part of mother nut 2 is connected，The secondary rear female thread III 11 of nut 3 is connected with the external screw thread II 12 of bolt 1，The length of the leading portion inner bolt hole 8 of described secondary nut 3 is more than or equal to the middle part section of being spirally connected 5 and the length sum of afterbody regulation section 7 of mother nut 2，The length of back segment inner bolt hole 9 more than or equal to bolt 1 external screw thread II 12 connect screw thread 1 tooth away from，The profile of described mother nut 2 is set to square column type、Cylindrical、Polygonal column shape、Butterfly、Flange or other obform bodies；nullThe profile of secondary nut 3 is set to square column type、Cylindrical、Polygonal column shape、Butterfly、Flange or other obform bodies，Each end face of described mother nut 2 main body is each perpendicular to the axial of bolt 1，Each end face of secondary nut 3 main body is each perpendicular to the axial of bolt 1，After the described front female thread II 10 of secondary nut 3 is connected with the external screw thread I 6 on the middle part section of being spirally connected 5 surface of mother nut 2，By adjusting front connecting length size between female thread II 10 and external screw thread I 6，Ensure that the female thread I 13 of mother nut 2 and the rear female thread III 11 of secondary nut 3 synchronize external screw thread II 12 with bolt 1 simultaneously and be connected，The secondary front female thread II 10 of nut 3 is provided with gap between inside and outside laminating end face after being connected with the external screw thread I 6 on the middle part section of being spirally connected 5 surface of mother nut 2，Described mother nut 2 is carbon steel、Rustless steel、Steel alloy、Copper、Aluminum、Alloy material or other metals are made，Secondary nut 3 is carbon steel、Rustless steel、Steel alloy、Copper、Aluminum、Alloy material or other metals are made，When mother nut 2 and secondary nut 3 are alloy material，Alloy material is aluminium alloy or copper alloy.
nullThe invention also discloses the locking control method between the mother nut of stop nut and secondary nut，It comprises the following steps: first by mother nut 2、After secondary nut 3 is connected by the external screw thread I 6 of the middle part section of being spirally connected 5，The while that the female thread I 13 of adjustment connecting length size guarantee mother nut 2 and the rear female thread III 11 of secondary nut 3 synchronizing, the external screw thread II 12 with bolt 1 is connected，It is provided with gap between the inside and outside laminating end face that the secondary front female thread II 10 of nut 3 is connected with the external screw thread I 6 on the middle part section of being spirally connected 5 surface of mother nut 2，Thus utilize the external screw thread I 6 of mother nut 2 and the front female thread II 10 junction fine thread precession of secondary nut 3、Screw out the fit clearance of rear female thread III 11 and ratcheting of the external screw thread II 12 of bolt 1 eliminating secondary nut 3，Make the rear female thread III 11 of secondary nut 3 eliminate with II 12 ratcheting gaps of external screw thread of bolt 1 and produce the hugest frictional resistance and axial forward thrust F at whole circumferencial direction，Axial reaction force F simultaneously produced，Make the external screw thread I 6 of mother nut 2 be connected ratcheting gap with the front female thread II 10 of secondary nut 3 and eliminate generation frictional resistance and axial thrust F；Make in the central bore of mother nut 2 main body the frictional resistance of original generation between female thread I 13 with ratcheting of the external screw thread II 12 of bolt 1 superpose and axial thrust F simultaneously; the counteracting force F produced by F back action simultaneously is in secondary nut 3; therein defines frictional resistance and the axial force protection that three roads counteract each other; not only protect by fastening workpiece but also ensure not loosened by each locking link under the various harsh environments such as frequent vibration and load change, play the effect of real never becoming loose.
nullEmbodiment two，At Fig. 1、In Fig. 2 and Fig. 3，The invention provides the structure of a kind of stop nut，It includes bolt 1、Mother nut 2 and secondary nut 3，The central bore 14 of described mother nut 2 main body is provided with female thread I 13，The leading portion of mother nut 2 is set to nipple heads 4，The stage casing of mother nut 2 is set to the middle part section of being spirally connected 5，The surface of the middle part section of being spirally connected 5 is provided with external screw thread I 6，The described closely-pitched straight thread that external screw thread I 6 is forward or reversely closely-pitched straight thread，Described external screw thread I 6 can also be the taper thread of forward or reverse taper thread，The back segment of mother nut 2 is set to afterbody regulation section 7，The girth of nipple heads 4 is more than the girth of the middle part section of being spirally connected 5，The diameter of the middle part section of being spirally connected 5 is more than the diameter of afterbody regulation section 7，The central bore of described secondary nut 3 is divided into leading portion inner bolt hole 8 and back segment inner bolt hole 9，The diameter of leading portion inner bolt hole 8 is more than the diameter of back segment inner bolt hole 9，It it is step-shaped transition between leading portion inner bolt hole 8 and back segment inner bolt hole 9，The inwall of leading portion inner bolt hole 8 is provided with front female thread II 10，The inwall of back segment inner bolt hole 9 is provided with rear female thread III 11，When mother nut 2 is arranged on bolt 1 with secondary nut 3，Mother nut 2 is connected on bolt 1 after being coordinated with the external screw thread II 12 of bolt 1 outer surface by female thread I 13，The secondary front female thread II 10 of nut 3 is connected with the external screw thread I 6 on the middle part section of being spirally connected 5 surface of mother nut 2，The secondary rear female thread III 11 of nut 3 is connected with the external screw thread II 12 of bolt 1，The length of the leading portion inner bolt hole 8 of described secondary nut 3 is more than or equal to the middle part section of being spirally connected 5 and the length sum of afterbody regulation section 7 of mother nut 2，The length of back segment inner bolt hole 9 more than or equal to bolt 1 external screw thread II 12 connect screw thread 1 tooth away from，The profile of described mother nut 2 is set to square column type、Cylindrical、Polygonal column shape、Butterfly、Flange or other obform bodies；nullThe profile of secondary nut 3 is set to square column type、Cylindrical、Polygonal column shape、Butterfly、Flange or other obform bodies，Each end face of described mother nut 2 main body is each perpendicular to the axial of bolt 1，Each end face of secondary nut 3 main body is each perpendicular to the axial of bolt 1，After the described front female thread II 10 of secondary nut 3 is connected with the external screw thread I 6 on the middle part section of being spirally connected 5 surface of mother nut 2，By adjusting front connecting length size between female thread II 10 and external screw thread I 6，Ensure that the female thread I 13 of mother nut 2 and the rear female thread III 11 of secondary nut 3 synchronize external screw thread II 12 with bolt 1 simultaneously and be connected，The secondary front female thread II 10 of nut 3 is provided with gap between inside and outside laminating end face after being connected with the external screw thread I 6 on the middle part section of being spirally connected 5 surface of mother nut 2，Described mother nut 2 is duroplasts、Graphite or other to have the solid-state of intensity nonmetal，Secondary nut 3 is duroplasts、Graphite or other to have the solid-state of intensity nonmetal.
nullThe invention also discloses the locking control method between the mother nut of stop nut and secondary nut，It comprises the following steps: first by mother nut 2、After secondary nut 3 is connected by the external screw thread I 6 of the middle part section of being spirally connected 5，The while that the female thread I 13 of adjustment connecting length size guarantee mother nut 2 and the rear female thread III 11 of secondary nut 3 synchronizing, the external screw thread II 12 with bolt 1 is connected，It is provided with gap between the inside and outside laminating end face that the secondary front female thread II 10 of nut 3 is connected with the external screw thread I 6 on the middle part section of being spirally connected 5 surface of mother nut 2，Thus utilize the external screw thread I 6 of mother nut 2 and the front female thread II 10 junction fine thread precession of secondary nut 3、Screw out the fit clearance of rear female thread III 11 and ratcheting of the external screw thread II 12 of bolt 1 eliminating secondary nut 3，Make the rear female thread III 11 of secondary nut 3 eliminate with II 12 ratcheting gaps of external screw thread of bolt 1 and produce the hugest frictional resistance and axial forward thrust F at whole circumferencial direction，Axial reaction force F simultaneously produced，Make the external screw thread I 6 of mother nut 2 be connected ratcheting gap with the front female thread II 10 of secondary nut 3 and eliminate generation frictional resistance and axial thrust F；Make in the central bore of mother nut 2 main body the frictional resistance of original generation between female thread I 13 with ratcheting of the external screw thread II 12 of bolt 1 superpose and axial thrust F simultaneously; the counteracting force F produced by F back action simultaneously is in secondary nut 3; therein defines frictional resistance and the axial force protection that three roads counteract each other; not only protect by fastening workpiece but also ensure not loosened by each locking link under the various harsh environments such as frequent vibration and load change, play the effect of real never becoming loose.
In addition to the above embodiments, other not described embodiments also should be within protection scope of the present invention.Detailed description of the invention as herein described is only description for example to present inventive concept, described specific embodiment can be made an amendment, supplement, substitute by the personnel of the technical field of the invention, all without departing from the scope conceiving or surmounting appended claims definition of the present invention.Being not excluded for using the probability of other terms herein by particular term narration, these terms are intended merely to popular convenient description and explain the essence of the present invention, it is impossible to be construed to any additional restriction.
Claims (11)
- null1. the structure of a stop nut，It is characterized in that it includes bolt (1)、Mother nut (2) and secondary nut (3)，The central bore (14) of described mother nut (2) main body is provided with female thread I (13)，The leading portion of mother nut (2) is set to nipple heads (4)，The stage casing of mother nut (2) is set to the middle part section of being spirally connected (5)，The surface at the middle part section of being spirally connected (5) is provided with external screw thread I (6)，The back segment of mother nut (2) is set to afterbody regulation section (7)，The girth of nipple heads (4) is more than the girth of the middle part section of being spirally connected (5)，The diameter at the middle part section of being spirally connected (5) is more than the diameter of afterbody regulation section (7)，The central bore of described secondary nut (3) is divided into leading portion inner bolt hole (8) and back segment inner bolt hole (9)，The diameter of leading portion inner bolt hole (8) is more than the diameter of back segment inner bolt hole (9)，The inwall of leading portion inner bolt hole (8) is provided with front female thread II (10)，The inwall of back segment inner bolt hole (9) is provided with rear female thread III (11)，When mother nut (2) is arranged on bolt (1) with secondary nut (3)，Mother nut (2) is connected on bolt (1) after being coordinated with the external screw thread II (12) of bolt (1) outer surface by female thread I (13)，The secondary front female thread II (10) of nut (3) is connected with the external screw thread I (6) on the middle part section of being spirally connected (5) surface of mother nut (2)，The secondary rear female thread III (11) of nut (3) is connected with the external screw thread II (12) of bolt (1).
- The structure of stop nut the most according to claim 1, is characterized in that the described closely-pitched straight thread that external screw thread I (6) is forward or reverse closely-pitched straight thread.
- The structure of stop nut the most according to claim 1, is characterized in that the described taper thread that external screw thread I (6) is forward or reverse taper thread.
- The structure of stop nut the most according to claim 1, is characterized in that between described leading portion inner bolt hole (8) and back segment inner bolt hole (9) as step-shaped transition.
- The structure of stop nut the most according to claim 1, it is characterized in that the length of described secondary nut (3) leading portion inner bolt hole (8) more than or equal to the middle part section of being spirally connected (5) of mother nut (2) and the length sum of afterbody regulation section (7), the length of back segment inner bolt hole (9) more than or equal to bolt (1) external screw thread II (12) connection screw thread 1 tooth away from.
- The structure of stop nut the most according to claim 1, is characterized in that the profile of described mother nut (2) is set to square column type, cylinder, Polygonal column shape, butterfly, flange or other obform bodies；The profile of secondary nut (3) is set to square column type, cylinder, Polygonal column shape, butterfly, flange or other obform bodies.
- The structure of stop nut the most according to claim 1, is characterized in that each end face of described mother nut (2) main body is each perpendicular to the axial of bolt (1), and each end face of secondary nut (3) main body is each perpendicular to the axial of bolt (1).
- The structure of stop nut the most according to claim 1, after it is characterized in that being spirally connected the described front female thread II (10) of secondary nut (3) and the middle part of mother nut (2) external screw thread I (6) of section surface being connected, by adjusting front connecting length size between female thread II (10) and external screw thread I (6), ensure that the female thread I (13) of mother nut and the rear female thread III (11) of secondary nut synchronize external screw thread II (12) with bolt (1) simultaneously and be connected, the front female thread II (10) of secondary nut (3) is provided with gap between inside and outside laminating end face after being connected with the external screw thread I (6) on the middle part section of being spirally connected (5) surface of mother nut (2).
- The structure of stop nut the most according to claim 1, it is characterized in that described mother nut (2) is that carbon steel, rustless steel, steel alloy, alloy material, copper, aluminum or other metals are made, secondary nut (3) is that carbon steel, rustless steel, steel alloy, alloy material, copper, aluminum or other metals are made.
- The structure of stop nut the most according to claim 1, it is characterized in that described mother nut (2) be duroplasts, graphite or other to have the solid-state of intensity nonmetal, secondary nut (3) be duroplasts, graphite or other to have the solid-state of intensity nonmetal.
- nullLocking control method between 11. 1 kinds of mother nuts for stop nut described in claim 1-10 and secondary nut，It is characterized in that it comprises the following steps: first by mother nut (2)、After secondary nut (3) is connected by the external screw thread I (6) of the middle part section of being spirally connected (5)，The while that the rear female thread III (11) of the female thread I (13) and secondary nut (3) that adjust connecting length size guarantee mother nut (2) synchronizing, the external screw thread II (12) with bolt (1) is connected，It is provided with gap between the inside and outside laminating end face that the front female thread II (10) of secondary nut (3) is connected with the external screw thread I (6) on the section of being spirally connected (5) surface, mother nut (2) middle part，Thus utilize the external screw thread I (6) of mother nut (2) and front female thread II (10) the junction fine thread precession of secondary nut (3)、Screw out the fit clearance of rear female thread III (11) and the external screw thread II (12) ratcheting of bolt (1) eliminating secondary nut (3)，Make the rear female thread III (11) of secondary nut (3) eliminate with (12) ratcheting gaps of external screw thread II of bolt (1) and produce the hugest frictional resistance and axial forward thrust F at whole circumferencial direction，Axial reaction force F simultaneously produced，Make the external screw thread I (6) of mother nut (2) be connected ratcheting gap with the front female thread II (10) of secondary nut (3) and eliminate generation frictional resistance and axial thrust F；The central bore (14) simultaneously making mother nut (2) main body goes up the frictional resistance of original generation between female thread I (13) with ratcheting of the external screw thread II (12) of bolt (1) and superposes and axial thrust F; the counteracting force F produced by F back action simultaneously is in secondary nut (3); therein defines frictional resistance and the axial force protection that three roads counteract each other; not only protect by fastening workpiece but also ensure not loosened by each locking link under the various harsh environments such as frequent vibration and load change, play the effect of real never becoming loose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337131.8A CN105937538A (en) | 2016-05-20 | 2016-05-20 | Structure of locknut and locking adjusting method for locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337131.8A CN105937538A (en) | 2016-05-20 | 2016-05-20 | Structure of locknut and locking adjusting method for locknut |
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| Publication Number | Publication Date |
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| CN105937538A true CN105937538A (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610337131.8A Pending CN105937538A (en) | 2016-05-20 | 2016-05-20 | Structure of locknut and locking adjusting method for locknut |
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| CN107091269A (en) * | 2017-06-16 | 2017-08-25 | 航天精工股份有限公司 | A kind of self-locking nut installed available for inclined-plane |
| CN107131199A (en) * | 2017-06-23 | 2017-09-05 | 镇江宏强铁路器材有限公司 | The locking fastener of interlocking-type |
| CN108397465A (en) * | 2018-03-15 | 2018-08-14 | 桂林理工大学 | A kind of double drive control stealthy connect method |
| CN108561400A (en) * | 2018-07-13 | 2018-09-21 | 嘉兴涵祺汽配科技有限公司 | A kind of high-strength bolt group for being not easy to twist into two parts |
| CN108612729A (en) * | 2018-07-19 | 2018-10-02 | 青海左丌右电气技术服务有限公司 | Multi-functional anti-loosening bolt and nut |
| CN108799305A (en) * | 2017-04-26 | 2018-11-13 | 林志厚 | A kind of connection method of pairs of anti-loose nut bolt |
| CN109139631A (en) * | 2018-07-17 | 2019-01-04 | 浙江华远汽车零部件有限公司 | Adjust bolt |
| CN109306998A (en) * | 2017-07-26 | 2019-02-05 | 万金根 | A kind of positive and negative silk screw of never becoming loose |
| CN110259809A (en) * | 2019-07-29 | 2019-09-20 | 河南四达电力设备股份有限公司 | It is a kind of to determine torque pressure attachment means |
| CN110541916A (en) * | 2018-05-29 | 2019-12-06 | 浙江力耐得传动科技有限公司 | Push rod structure with half mould half copper nut |
| CN110617264A (en) * | 2019-10-11 | 2019-12-27 | 李武彬 | Elastic thread anti-loosening fastening device |
| CN111963551A (en) * | 2020-09-06 | 2020-11-20 | 叶春林 | Ring sleeve type locknut |
| CN112483531A (en) * | 2020-12-13 | 2021-03-12 | 重庆科技学院 | Check bolt group with internal thread regular polygon gasket and operation method thereof |
| CN112594273A (en) * | 2020-11-20 | 2021-04-02 | 中国电力科学研究院有限公司 | Eccentric locking cap of transmission tower bolt |
| WO2023029019A1 (en) * | 2021-09-04 | 2023-03-09 | 叶春林 | Loop-type locknut |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109306998A (en) * | 2017-07-26 | 2019-02-05 | 万金根 | A kind of positive and negative silk screw of never becoming loose |
| CN108397465A (en) * | 2018-03-15 | 2018-08-14 | 桂林理工大学 | A kind of double drive control stealthy connect method |
| CN110541916A (en) * | 2018-05-29 | 2019-12-06 | 浙江力耐得传动科技有限公司 | Push rod structure with half mould half copper nut |
| CN108561400A (en) * | 2018-07-13 | 2018-09-21 | 嘉兴涵祺汽配科技有限公司 | A kind of high-strength bolt group for being not easy to twist into two parts |
| CN109139631A (en) * | 2018-07-17 | 2019-01-04 | 浙江华远汽车零部件有限公司 | Adjust bolt |
| CN108612729A (en) * | 2018-07-19 | 2018-10-02 | 青海左丌右电气技术服务有限公司 | Multi-functional anti-loosening bolt and nut |
| CN110259809A (en) * | 2019-07-29 | 2019-09-20 | 河南四达电力设备股份有限公司 | It is a kind of to determine torque pressure attachment means |
| CN110259809B (en) * | 2019-07-29 | 2024-05-17 | 河南四达数字安防科技有限公司 | Fastening method of fixed torque pressure fastener |
| CN110617264A (en) * | 2019-10-11 | 2019-12-27 | 李武彬 | Elastic thread anti-loosening fastening device |
| CN111963551A (en) * | 2020-09-06 | 2020-11-20 | 叶春林 | Ring sleeve type locknut |
| CN111963551B (en) * | 2020-09-06 | 2022-04-01 | 叶春林 | Single ring type locknut assembly |
| CN112594273A (en) * | 2020-11-20 | 2021-04-02 | 中国电力科学研究院有限公司 | Eccentric locking cap of transmission tower bolt |
| CN112483531A (en) * | 2020-12-13 | 2021-03-12 | 重庆科技学院 | Check bolt group with internal thread regular polygon gasket and operation method thereof |
| WO2023029019A1 (en) * | 2021-09-04 | 2023-03-09 | 叶春林 | Loop-type locknut |
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Application publication date: 20160914 |