CN105545921B - A kind of coaxial bolts group of packing ring stop - Google Patents

A kind of coaxial bolts group of packing ring stop Download PDF

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Publication number
CN105545921B
CN105545921B CN201410587233.6A CN201410587233A CN105545921B CN 105545921 B CN105545921 B CN 105545921B CN 201410587233 A CN201410587233 A CN 201410587233A CN 105545921 B CN105545921 B CN 105545921B
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China
Prior art keywords
bolt
nut
internal tooth
tooth
stop
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CN201410587233.6A
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Chinese (zh)
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CN105545921A (en
Inventor
韩全民
王运锋
赵常飞
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Xian Aircraft Design and Research Institute of AVIC
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Xian Aircraft Design and Research Institute of AVIC
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Priority to CN201410587233.6A priority Critical patent/CN105545921B/en
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Abstract

The invention discloses a kind of coaxial bolts group of packing ring stop, including outer bolt, inner bolt, outer nut, also include inner nut and stop washer, by the way that the bolt head of female screws is designed into anti-rotation structure, is reverse rotation by the Design of Screw Thread of female screws/nut, and stop washer is designed between inner nut and outer nut, engaged simultaneously with the groove on inside and outside nut by the tooth on the stop washer, realize the locking stop of two nuts the characteristics of oppositely oriented using interior outer nut.

Description

A kind of coaxial bolts group of packing ring stop
Technical field
The invention belongs to aeroplane structure design, and in particular to a kind of coaxial bolts group of packing ring stop.
Background technology
Large Aircraft Components docking site is frequently with the coaxial bolts group with fail safety characteristic, after nut determines power installation By breaking pin hole processed, the mode of installation insurance bolt is locking.Inconvenience of being constructed after big part docks on machine be present in the structure type, Recovering former breaking pin hole after power is determined in installation after nut dismounting possibly can not align, need the problems such as brand-new breaking pin hole, mounting process Property it is poor, dismounting safeguard inconvenience.
The content of the invention
The technical problem to be solved in the present invention is, there is provided a kind of coaxial bolts group of packing ring stop is to improve nut anti-looseness The manufacturability of process, when determining power installation after nut dismounting again, breaking pin hole processed is avoided again, improves maintainability.
A kind of coaxial bolts group of packing ring stop is provided for the technical solution of the present invention that solves the above problems, including outer bolt, Inner bolt, outer nut, in addition to inner nut and stop washer, the inner ring of the stop washer have one group of internal tooth, and outer ring has one group External tooth equidirectional with internal tooth and one group and the external tooth of internal tooth opposite direction, the shank of bolt end of the inner bolt has and the stop The teeth groove of packing ring internal tooth matching, the outer rim of the outer nut have the tooth that the external tooth in the same direction with the internal tooth of the stop washer matches Groove, the outer rim of the inner nut have a teeth groove that the external tooth reverse with the stop washer internal tooth matches, and the inner bolt is from bolt In head insertion outer bolt, the outer nut is with the outer bolt spiral adapter sleeve in the outer bolt end, the stop washer Internal tooth be fastened in the teeth groove of the inner bolt end, external tooth in the same direction is fastened in the teeth groove of the outer nut with internal tooth, The inner nut is connected with the inner bolt spiral, and the stop washer is fastened on the inner nut with the reverse external tooth of internal tooth In teeth groove.
Preferably, the bolt head of the inner bolt and outer bolt designs for D-shaped.
Preferably, the threaded engagement direction of the outer bolt and outer nut and the inner bolt and the threaded engagement of inner nut In the opposite direction.
Preferably, the internal tooth of the stop washer can inner nut tighten determine power after bend, and on the inner nut Groove engages;The external tooth of stop washer can outer nut tighten determine power after bend, engaged with the groove on the outer nut.
Present invention design is same by the tooth on the stop washer by designing stop washer between inner nut and outer nut When engaged with the groove on inside and outside nut, realize the locking stop of two nuts.The bolt head of female screws is designed to anti-rotation knot Structure, by the Design of Screw Thread of female screws/nut for reversely rotate, may further ensure that the locking between two screw bolt and nut It is locking.Compared with the locking mode of existing pin, there is the advantages of degree of regulation is high, disassembly and installation is convenient, maintainability is good.
Brief description of the drawings
Specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:
Fig. 1 is coaxial bolts group structure overall schematic;
Fig. 2 is the schematic diagram of outer bolt 1;
Fig. 3 is the schematic diagram of inner bolt 2;
Fig. 4 is the schematic diagram of outer nut 3;
Fig. 5 is the structural representation of inner nut 4;
Fig. 6 is the structural representation of stop washer 5.
Embodiment
The present invention is described in further detail below.Referring to Fig. 1, a kind of coaxial bolts group of packing ring stop, including it is outer Bolt 1, inner bolt 2, outer nut 3, inner nut 4, stop washer 5.It is characterized in that:Outer bolt 1 and inner bolt 2 lead in bolt head The insertion of D-shaped groove is crossed, prevents from mutually rotating;Outer bolt 1, outer nut 3 are opposite with the thread rotary orientation of inner bolt 2, inner nut 4;Outside Stop washer 5 is designed between nut 3 and inner nut 4, the tooth of the inner ring of stop washer 5, which is inserted in the cylindrical groove of inner bolt 2, to be fixed, Prevent stop washer 5 from rotating, the tooth of outer ring is divided into two groups, and one group bends to the direction of outer nut 3, for the groove on outer nut 3 Engagement, one group bends to the direction of inner nut 4, for being engaged with the groove on inner nut 4.
During installation, inner bolt 2 is inserted in outer bolt 1 and its embedded bolt head D-shaped groove, by the two bolts together company of insertion Connect in hole;Then determine power installation outer nut 3, be put into stop washer 5, and by the tooth matched with outer nut 3 bending and outer nut 3 Teeth groove engagement;Installation inner nut 4 simultaneously determines power, by the tooth matched on stop washer 5 with inner nut 4 bending and inner nut 4 Teeth groove engages.
Bolt group engages with same stop washer 5 in use, because outer nut 3 and inner nut 4 are oppositely oriented simultaneously, Therefore it will not loosen.
When needing demounting bolt group, the tooth that stop washer 5 engages with inner nut 4 is first turned on, inner nut 4 is dismantled, takes Go out stop washer 5, then dismantle outer nut 3, it is then overall to extract outer bolt 1 and inner bolt 2.

Claims (3)

1. a kind of coaxial bolts group of packing ring stop, including outer bolt (1), inner bolt (2), outer nut (3), it is characterised in that Also include inner nut (4) and stop washer (5), the inner ring of the stop washer (5) has one group of internal tooth, and there are one group and internal tooth in outer ring Equidirectional external tooth and one group and the external tooth of internal tooth opposite direction, the shank of bolt end of the inner bolt (2) has and the stop pad The teeth groove of (5) internal tooth matching is enclosed, the outer rim of the outer nut (3) has the external tooth in the same direction with the internal tooth of the stop washer (5) The teeth groove matched somebody with somebody, the outer rim of the inner nut (4) has the teeth groove that the external tooth reverse with the stop washer (5) internal tooth matches, described Inner bolt (2) is out of bolt head insertion outer bolt (1), and the outer nut (3) is with the outer bolt (1) spiral adapter sleeve described Outer bolt (1) end, the internal tooth of the stop washer (5) is fastened in the teeth groove of the inner bolt (2) end, in the same direction with internal tooth External tooth be fastened in the teeth groove of the outer nut (3), the inner nut (4) is connected with the inner bolt (2) spiral, it is described only Washer (5) is fastened in the teeth groove of the inner nut (4) with the reverse external tooth of internal tooth.
2. coaxial bolts group according to claim 1, it is characterised in that the inner bolt (2) and the bolt of outer bolt (1) Head designs for D-shaped.
3. coaxial bolts group according to claim 1, it is characterised in that the outer bolt (1) and the spiral of outer nut (3) Coordinate direction and the threaded engagement of the inner bolt (2) and inner nut (4) in opposite direction.
CN201410587233.6A 2014-10-28 2014-10-28 A kind of coaxial bolts group of packing ring stop Active CN105545921B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410587233.6A CN105545921B (en) 2014-10-28 2014-10-28 A kind of coaxial bolts group of packing ring stop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410587233.6A CN105545921B (en) 2014-10-28 2014-10-28 A kind of coaxial bolts group of packing ring stop

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CN105545921A CN105545921A (en) 2016-05-04
CN105545921B true CN105545921B (en) 2018-02-27

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107521706A (en) * 2017-07-28 2017-12-29 中国航空工业集团公司西安飞机设计研究所 Engine aids in erection joint
CN111765191B (en) * 2020-07-01 2021-11-26 上海电动工具研究所(集团)有限公司 Spring pressure adjusting device
CN112032180B (en) * 2020-08-28 2021-09-17 北京航空航天大学 Double-nut anti-loosening device suitable for shaft parts

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022809A (en) * 1958-01-20 1962-02-27 Shur Lok Corp Nut and bolt lock with teeth to notch the bolt thread
CN2177120Y (en) * 1993-07-17 1994-09-14 张吉林 Anti-loose, anti-theft fastening bolt
US5855463A (en) * 1997-09-15 1999-01-05 Newby; John C. Bolt and nut thread friction locking device with opposite hand threads with a captured spring or spring lock washer
CN201428718Y (en) * 2009-06-26 2010-03-24 上海通用汽车有限公司 Connecting device
CN202118079U (en) * 2011-05-26 2012-01-18 西华大学 Anti-loosening structure for thread connection
CN202597389U (en) * 2012-05-25 2012-12-12 福州萱裕金属配套有限公司 Novel erection adjusting bolt assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7927052B1 (en) * 2009-10-26 2011-04-19 Arnold Varden Locking axle nut

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022809A (en) * 1958-01-20 1962-02-27 Shur Lok Corp Nut and bolt lock with teeth to notch the bolt thread
CN2177120Y (en) * 1993-07-17 1994-09-14 张吉林 Anti-loose, anti-theft fastening bolt
US5855463A (en) * 1997-09-15 1999-01-05 Newby; John C. Bolt and nut thread friction locking device with opposite hand threads with a captured spring or spring lock washer
CN201428718Y (en) * 2009-06-26 2010-03-24 上海通用汽车有限公司 Connecting device
CN202118079U (en) * 2011-05-26 2012-01-18 西华大学 Anti-loosening structure for thread connection
CN202597389U (en) * 2012-05-25 2012-12-12 福州萱裕金属配套有限公司 Novel erection adjusting bolt assembly

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