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CN107939810A - A kind of retaining mechanism of shaft end nut - Google Patents

A kind of retaining mechanism of shaft end nut Download PDF

Info

Publication number
CN107939810A
CN107939810A CN201711180133.1A CN201711180133A CN107939810A CN 107939810 A CN107939810 A CN 107939810A CN 201711180133 A CN201711180133 A CN 201711180133A CN 107939810 A CN107939810 A CN 107939810A
Authority
CN
China
Prior art keywords
nut
block
piece
shaft
retaining mechanism
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.)
Pending
Application number
CN201711180133.1A
Other languages
Chinese (zh)
Inventor
黄兴
卫宝华
张丽丽
陈勇
王邦赛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AECC Shenyang Liming Aero Engine Co Ltd
Original Assignee
AECC Shenyang Liming Aero Engine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AECC Shenyang Liming Aero Engine Co Ltd filed Critical AECC Shenyang Liming Aero Engine Co Ltd
Priority to CN201711180133.1A priority Critical patent/CN107939810A/en
Publication of CN107939810A publication Critical patent/CN107939810A/en
Pending legal-status Critical Current

Links

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
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

The present invention relates to a kind of retaining mechanism of shaft end nut, including:Shaft locking piece, nut check piece and block, the shaft locking piece are clamped with axis, and the nut check piece is clamped with nut, and block is connected with shaft locking piece, nut check piece to realize the locking of shaft end nut respectively.The retaining mechanism of the present invention realizes the connection of shaft locking piece and nut check piece using block, cooperatively forms locking by the serrated slot on the sawtooth on block and nut check piece outer circumference surface, locking effect is good and retaining mechanism repeats utilization.

Description

A kind of retaining mechanism of shaft end nut
Technical field
The present invention relates to retaining mechanism, more particularly to a kind of retaining mechanism of shaft end nut.
Background technology
Shaft end nut locking at present mostly uses lock plate structure, and the lock for deforming and blocking on nut is tapped after assembling locking plate Film trap, plays anti-loose effect.Limited by operator's level, locking effect differs greatly.Need to be by locking plate when needing to back out nut Destructive decomposition, assembles more renew locking plate again, the not reproducible use of locking plate.
The content of the invention
The embodiment of the present invention provides a kind of retaining mechanism of shaft end nut, poor to solve existing shaft end nut locking effect And the not re-usable problem of locking member.
The present invention provides a kind of retaining mechanism of shaft end nut, including:Shaft locking piece, nut check piece and block, it is described Shaft locking piece and axis are clamped, and the nut check piece is clamped with nut, block be connected respectively with shaft locking piece, nut check piece with Realize the locking of shaft end nut.
In the retaining mechanism of the shaft end nut of the present invention, the shaft locking piece is in circular ring shape, along the shaft locking piece It is axially arranged with least two axis lock ears, the axis lock ear is inserted into the shaft locking groove of the axial end;
Two boss are equipped with the outer circumference surface of the shaft locking piece, are formed between two boss being oppositely arranged described in supplying The block groove of block one end insertion, is equipped with screw hole in the boss and block correspondence position, can be consolidated block one end by bolt Surely arrive in block groove.
In the retaining mechanism of the shaft end nut of the present invention, the nut check piece is in circular ring shape, along nut check piece Radially and at least two nut lock ears are equipped with to center of circle direction, the nut lock ear is caught in the nut check groove of the nut end face It is interior;
Be uniformly provided with serrated slot on the outer circumference surface of the nut check piece, the other end of the block be equipped with it is described The sawtooth that serrated slot coordinates, described block one end are bolted in block groove, and the other end passes through sawtooth and nut check The serrated slot engagement of the side face of piece, to realize the locking of shaft end nut.
In the retaining mechanism of the shaft end nut of the present invention, three axis lock ears are axially arranged with along the shaft locking piece.
In the retaining mechanism of the shaft end nut of the present invention, three nut locks are radially provided with along the nut check piece Ear.
In the retaining mechanism of the shaft end nut of the present invention, the maximum width L of the serrated slot meets following relationship:Wherein r is the radius of nut check piece.
The present invention a kind of shaft end nut retaining mechanism using Split type structure design, using block realize shaft locking piece with The connection of nut check piece, locking is cooperatively formed by the serrated slot on the sawtooth on block and nut check piece side face, locking Effect is good and retaining mechanism repeats utilization.
Shaft end nut locking operation is carried out using the retaining mechanism of the present invention, the level of skill requirement to operator is relatively low, Locking effect and reproducible, solves since operator's level of skill and locking effect difference caused by working attitude difference are asked Topic.
Brief description of the drawings
Fig. 1 is the installation effect figure of the retaining mechanism of the shaft end nut of the present invention;
Fig. 2 is enlarged drawing at A in Fig. 1;
Fig. 3 is the schematic diagram of the shaft locking piece of the retaining mechanism of the shaft end nut of the present invention;
Fig. 4 is the schematic diagram of the nut check piece of the retaining mechanism of the shaft end nut of the present invention;
Fig. 5 is the schematic diagram of the block of the retaining mechanism of the shaft end nut of the present invention.
Embodiment
As shown in Figure 1 to Figure 3, the retaining mechanism of a kind of shaft end nut of the invention, including:Shaft locking piece 1, nut check Piece 2 and block 3.Shaft locking piece 1 and axis are clamped, and nut check piece 2 is clamped with nut, block 3 respectively with shaft locking piece 1, nut Lock sheet 2 is connected to realize the locking of shaft end nut.
Shaft locking piece 1 is in circular ring shape, along at least two axis lock ears 11 that are axially arranged with of shaft locking piece 1, the axis lock ear 11 It is inserted into the shaft locking groove of axial end, to realize shaft locking piece 1 and axis connection.Two are equipped with the outer circumference surface of shaft locking piece 1 A boss 12, forms the block groove for the insertion of described 3 one end of block between two boss 12 being oppositely arranged, in boss 12 and block 3 correspondence positions are equipped with screw hole, and 3 one end of block can be fixed in block groove by bolt.
Nut check piece 2 is in circular ring shape, along nut check piece 2 radial direction and be equipped with least two nut locks to center of circle direction Ear 21, the nut lock ear 21 are caught in the nut check groove of the nut end face, to realize the company of nut check piece 2 and nut Connect.Serrated slot 22 is uniformly provided with the outer circumference surface of nut check piece 2, the other end of block 3 is equipped with what is coordinated with serrated slot 22 Sawtooth 31, described 3 one end of block are bolted in block groove, the week that the other end passes through sawtooth 31 and nut check piece 2 The serrated slot 22 in face engages, to realize the locking of shaft end nut.
When it is implemented, it is axially arranged with three axis lock ears 11 along shaft locking piece 1.Along being radially provided with for nut check piece 2 Three nut lock ears 21.
In order to ensure serrated slot and sawtooth can be engaged accurately, the maximum width L of serrated slot meets following relationship:Wherein r is the radius of nut check piece.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention is all the present invention's Within spirit and principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.

Claims (6)

  1. A kind of 1. retaining mechanism of shaft end nut, it is characterised in that including:Shaft locking piece, nut check piece and block, the axis Lock sheet is clamped with axis, and the nut check piece is clamped with nut, and block is connected with reality with shaft locking piece, nut check piece respectively The locking of existing shaft end nut.
  2. 2. the retaining mechanism of shaft end nut as claimed in claim 1, it is characterised in that the shaft locking piece is in circular ring shape, edge The shaft locking piece is axially arranged with least two axis lock ears, and the axis lock ear is inserted into the shaft locking groove of the axial end;
    Two boss are equipped with the outer circumference surface of the shaft locking piece, is formed between two boss being oppositely arranged and supplies the block The block groove of one end insertion, is equipped with screw hole in the boss and block correspondence position, can be fixed to block one end by bolt In block groove.
  3. 3. the retaining mechanism of shaft end nut as claimed in claim 2, it is characterised in that the nut check piece is in circular ring shape, Along nut check piece radial direction and be equipped with least two nut lock ears to center of circle direction, the nut lock ear is caught in the nut end In the nut check groove in face;
    Serrated slot is uniformly provided with the outer circumference surface of the nut check piece, the other end of the block is equipped with and the sawtooth The sawtooth that groove coordinates, described block one end is bolted in block groove, and the other end passes through sawtooth and nut check piece The serrated slot engagement of side face, to realize the locking of shaft end nut.
  4. 4. the retaining mechanism of shaft end nut as claimed in claim 2, it is characterised in that along being axially arranged with for the shaft locking piece Three axis lock ears.
  5. 5. the retaining mechanism of shaft end nut as claimed in claim 3, it is characterised in that set along the radial direction of the nut check piece There are three nut lock ears.
  6. 6. the retaining mechanism of shaft end nut as claimed in claim 3, it is characterised in that the maximum width L of the serrated slot expires Sufficient following relationship:Wherein r is the radius of nut check piece.
CN201711180133.1A 2017-11-23 2017-11-23 A kind of retaining mechanism of shaft end nut Pending CN107939810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711180133.1A CN107939810A (en) 2017-11-23 2017-11-23 A kind of retaining mechanism of shaft end nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711180133.1A CN107939810A (en) 2017-11-23 2017-11-23 A kind of retaining mechanism of shaft end nut

Publications (1)

Publication Number Publication Date
CN107939810A true CN107939810A (en) 2018-04-20

Family

ID=61930849

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711180133.1A Pending CN107939810A (en) 2017-11-23 2017-11-23 A kind of retaining mechanism of shaft end nut

Country Status (1)

Country Link
CN (1) CN107939810A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108679076A (en) * 2018-05-29 2018-10-19 安徽江淮汽车集团股份有限公司 Locking mechanism assembly
CN109356929A (en) * 2018-12-13 2019-02-19 哈尔滨电气动力装备有限公司 The locking plate locking for Allen bolt in counterbore
CN111779753A (en) * 2020-07-31 2020-10-16 中国航发贵阳发动机设计研究所 Novel locking structure of aircraft engine nut

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597278A (en) * 1995-07-24 1997-01-28 Maclean-Fogg Company Locking fastener assembly for threaded joint
US6010290A (en) * 1999-01-29 2000-01-04 Dana Corporation Lock nut washer for a locking nut assembly
CN1809704A (en) * 2003-08-01 2006-07-26 达纳公司 Combination lock washer and spindle bearing assembly
CN2906176Y (en) * 2006-04-14 2007-05-30 安康铁路恒通电信技术有限公司 Pin-free anti-loose anti-vast stop device
EP2053257A2 (en) * 2007-10-22 2009-04-29 SKF Aerospace France Device for blocking the rotation of a screwed assembly, assembly comprising such a device and use of such an assembly in aeronautical construction
CN204533119U (en) * 2015-02-12 2015-08-05 中航飞机起落架有限责任公司 A kind of adjustable thread link lever locking device and adjustable thread connecting rod
CN105822653A (en) * 2016-06-08 2016-08-03 吴志强 Nut assembly capable of precise adjustment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597278A (en) * 1995-07-24 1997-01-28 Maclean-Fogg Company Locking fastener assembly for threaded joint
US6010290A (en) * 1999-01-29 2000-01-04 Dana Corporation Lock nut washer for a locking nut assembly
CN1809704A (en) * 2003-08-01 2006-07-26 达纳公司 Combination lock washer and spindle bearing assembly
CN2906176Y (en) * 2006-04-14 2007-05-30 安康铁路恒通电信技术有限公司 Pin-free anti-loose anti-vast stop device
EP2053257A2 (en) * 2007-10-22 2009-04-29 SKF Aerospace France Device for blocking the rotation of a screwed assembly, assembly comprising such a device and use of such an assembly in aeronautical construction
CN204533119U (en) * 2015-02-12 2015-08-05 中航飞机起落架有限责任公司 A kind of adjustable thread link lever locking device and adjustable thread connecting rod
CN105822653A (en) * 2016-06-08 2016-08-03 吴志强 Nut assembly capable of precise adjustment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108679076A (en) * 2018-05-29 2018-10-19 安徽江淮汽车集团股份有限公司 Locking mechanism assembly
CN109356929A (en) * 2018-12-13 2019-02-19 哈尔滨电气动力装备有限公司 The locking plate locking for Allen bolt in counterbore
CN111779753A (en) * 2020-07-31 2020-10-16 中国航发贵阳发动机设计研究所 Novel locking structure of aircraft engine nut
CN111779753B (en) * 2020-07-31 2022-09-09 中国航发贵阳发动机设计研究所 Locking structure of aircraft engine nut

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PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180420

RJ01 Rejection of invention patent application after publication