CN107882847A - A kind of screw-threaded coupling device - Google Patents
A kind of screw-threaded coupling device Download PDFInfo
- Publication number
- CN107882847A CN107882847A CN201711065653.8A CN201711065653A CN107882847A CN 107882847 A CN107882847 A CN 107882847A CN 201711065653 A CN201711065653 A CN 201711065653A CN 107882847 A CN107882847 A CN 107882847A
- Authority
- CN
- China
- Prior art keywords
- bolt
- nut
- locking
- radial direction
- collar
- 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
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 9
- 238000010168 coupling process Methods 0.000 title claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention relates to a kind of screw-threaded coupling device, including bolt, the self-locking nut being engaged with bolt, collar, lock tube, external splines is provided with the end thread of described bolt, one end periphery of nut is provided with a circle axial projection, axial raised end set has the annular protrusion to extend internally, in described axial projection, also it is symmetrically arranged with radial direction neck at two, lock tube is cylindrical shape, it is internally provided with the internal spline coordinated with bolt external splines, periphery one end is provided with the card collar groove of circumferential installation collar, with two symmetrical radial direction locking plates, described locking plate is engaged with the radial direction neck of nut.The present invention can solve the space-constrained locking mechanism inside for decelerator, while can avoid producing fifth wheel, realize the double locking between connector, ensure that connection is reliable.
Description
Technical field
The present invention relates to a kind of locking device, especially a kind of screw-threaded coupling device.
Background technology
General threaded connection can be locked by way of split pin is worn in perforate self-locking nut or on bolt, or two ways
With reference to locking mode, but limited sometimes by structure, above-mentioned double locking mode is difficult to.Inside helicopter reducer
The important link position of the tumbler compared with big load is transmitted, if being also easy to produce fifth wheel with opening pin locked, while is limited by space
System can not otherwise lock connection, only be locked again it cannot be guaranteed that security with self-locking nut, it is therefore desirable to which one kind can protect
Card does not easily cause fifth wheel and can and meets the locking mode that space limitation requires.
The content of the invention
It is an object of the invention to provide a kind of screw-threaded coupling device, use, can ensure in Helicopter Main Reducer
Fifth wheel will not be produced, and meets that space limitation requires, realizes to transmission compared with the locking between the tumbler of big load, ensures master
The use reliability and security of dynamic component in decelerator.
The concrete technical scheme of the present invention is the self-locking that described screw-threaded coupling device includes bolt, is engaged with bolt
Nut, collar, lock tube, external splines are provided with the end thread of described bolt, one end periphery of nut is provided with a circle axle
To projection, axial raised end set has the annular protrusion to extend internally, in described axial projection, is also symmetrically arranged with
Radial direction neck at two, lock tube are cylindrical shape, are internally provided with the internal spline coordinated with bolt external splines, periphery one end is provided with week
To installation collar card collar groove, and two symmetrical radial direction locking plates, described locking plate be engaged with the radial direction neck of nut.Institute
The periphery for the lock tube stated is additionally provided with external screw thread.
In the use of the present invention, after first required part is assembled, installed with screw bolt and nut, collar is installed to lock
In the card collar groove of set, and ensure that collar is in impaction state by collar special caliper, by locking plate is corresponding with groove position, spline
After link position is corresponding, collar and lock tube are assembled in the annular protrusion of nut end together, decontrol clamp, collar rises naturally
Open, be stuck in the annular protrusion to extend internally of nut end setting, complete installation.External screw thread on lock tube ensures dismounting side
Just.The present invention carries out an axial locking by nut first, then passes through the spline fitted and card between bolt, lock tube and nut
Slot type is circumferentially spacing to be locked again, and carries out axial limiting again by collar, so as to realize that double locking acts on.This
Invention can solve the space-constrained locking mechanism inside for decelerator, while can avoid producing fifth wheel, realize
Double locking between connector, ensure that connection is reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of bolt；
Fig. 3 is Fig. 2 N-N to enlarged drawing；
Fig. 4 is nut structure diagram；
Fig. 5 is Fig. 4 top view；
Fig. 6 is lock tube structural representation；
Fig. 7 is Fig. 6 side view.
Embodiment
As illustrated, screw-threaded coupling device includes bolt 1, the self-locking nut 2 being engaged with bolt, collar 3, lock tube 4, institute
External splines is provided with the end thread for the bolt 1 stated, one end periphery of nut 2 is provided with a circle axial projection 21, axially convex
The end set for playing 21 has the annular protrusion 22 to extend internally, in described axial projection 21, is also symmetrically arranged with footpath at two
To neck 23, lock tube 4 is cylindrical shape, is internally provided with the internal spline coordinated with the external splines of bolt 1, periphery one end is provided with circumference
Installation collar 3 card collar groove 41, and two symmetrical radial direction locking plates 42, the radial direction neck 23 of described locking plate 41 and nut 2
It is engaged.The periphery of described lock tube 4 is additionally provided with external screw thread.
Claims (2)
- A kind of 1. screw-threaded coupling device, it is characterised in that the self-locking spiral shell that described device includes bolt (1), is engaged with bolt Female (2), collar (3), lock tube (4), external splines, one end periphery of nut (2) are provided with the end thread of described bolt (1) A circle axial projection (21) is provided with, the end set of axial projection (21) has the annular protrusion (22) to extend internally, described Axial projection (21) on, be also symmetrically arranged with radial direction neck (23) at two, lock tube (4) is cylindrical shape, is internally provided with and spiral shell The internal spline that bolt (1) external splines coordinates, periphery one end are provided with the card collar groove (41) of circumferential installation collar (3), and two right The radial direction locking plate (42) of title, described locking plate (41) are engaged with the radial direction neck (23) of nut (2).
- 2. a kind of screw-threaded coupling device as claimed in claim 1, it is characterised in that the periphery of described lock tube (4) is also set up There is external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065653.8A CN107882847A (en) | 2017-11-02 | 2017-11-02 | A kind of screw-threaded coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065653.8A CN107882847A (en) | 2017-11-02 | 2017-11-02 | A kind of screw-threaded coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882847A true CN107882847A (en) | 2018-04-06 |
Family
ID=61778483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711065653.8A Pending CN107882847A (en) | 2017-11-02 | 2017-11-02 | A kind of screw-threaded coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882847A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
| CN110985550A (en) * | 2019-12-23 | 2020-04-10 | 中国航发哈尔滨轴承有限公司 | Anti-loosening assembly for preventing bearing from moving |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8722021D0 (en) * | 1987-09-18 | 1987-10-28 | British Aerospace | Lock nut assemblies |
| EP0634583A1 (en) * | 1993-07-13 | 1995-01-18 | RPC Design Ltd. | Means for locking a nut on a bolt |
| US5390573A (en) * | 1993-04-30 | 1995-02-21 | Detroit Tool Industries Corporation | Fastening system for torque limited fasteners |
| CN201431995Y (en) * | 2009-06-23 | 2010-03-31 | 宁波宝新不锈钢有限公司 | Fastening device for suspending central spindle at roller driving side of sendzimir mill |
| CN101936323A (en) * | 2010-09-17 | 2011-01-05 | 浙江吉利汽车研究院有限公司 | Vehicle theftproof nut |
| CN201866054U (en) * | 2010-09-02 | 2011-06-15 | 徐工集团工程机械股份有限公司科技分公司 | Novel shaft end locking structure |
| CN203532477U (en) * | 2013-10-12 | 2014-04-09 | 黄龙梅 | Eccentric type self-locking locknut |
| CN204223176U (en) * | 2014-10-27 | 2015-03-25 | 广州极飞电子科技有限公司 | The connection structure of rotor craft horn and fuselage |
| CN104647207A (en) * | 2014-12-05 | 2015-05-27 | 深圳市佳易研磨有限公司 | Axial pressing locking device |
| CN105757095A (en) * | 2016-03-21 | 2016-07-13 | 哈尔滨东安发动机（集团）有限公司 | Self-locking thread sleeve device |
| US20160258470A1 (en) * | 2013-11-22 | 2016-09-08 | Newfrey Llc | Swaged collar and swaged nut |
| CN207526855U (en) * | 2017-11-02 | 2018-06-22 | 中国航发哈尔滨东安发动机有限公司 | A kind of screw-threaded coupling device |
-
2017
- 2017-11-02 CN CN201711065653.8A patent/CN107882847A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8722021D0 (en) * | 1987-09-18 | 1987-10-28 | British Aerospace | Lock nut assemblies |
| US4889458A (en) * | 1987-09-18 | 1989-12-26 | British Aerospace, Plc | Lock nut assemblies |
| US5390573A (en) * | 1993-04-30 | 1995-02-21 | Detroit Tool Industries Corporation | Fastening system for torque limited fasteners |
| EP0634583A1 (en) * | 1993-07-13 | 1995-01-18 | RPC Design Ltd. | Means for locking a nut on a bolt |
| CN201431995Y (en) * | 2009-06-23 | 2010-03-31 | 宁波宝新不锈钢有限公司 | Fastening device for suspending central spindle at roller driving side of sendzimir mill |
| CN201866054U (en) * | 2010-09-02 | 2011-06-15 | 徐工集团工程机械股份有限公司科技分公司 | Novel shaft end locking structure |
| CN101936323A (en) * | 2010-09-17 | 2011-01-05 | 浙江吉利汽车研究院有限公司 | Vehicle theftproof nut |
| CN203532477U (en) * | 2013-10-12 | 2014-04-09 | 黄龙梅 | Eccentric type self-locking locknut |
| US20160258470A1 (en) * | 2013-11-22 | 2016-09-08 | Newfrey Llc | Swaged collar and swaged nut |
| CN204223176U (en) * | 2014-10-27 | 2015-03-25 | 广州极飞电子科技有限公司 | The connection structure of rotor craft horn and fuselage |
| CN104647207A (en) * | 2014-12-05 | 2015-05-27 | 深圳市佳易研磨有限公司 | Axial pressing locking device |
| CN105757095A (en) * | 2016-03-21 | 2016-07-13 | 哈尔滨东安发动机（集团）有限公司 | Self-locking thread sleeve device |
| CN207526855U (en) * | 2017-11-02 | 2018-06-22 | 中国航发哈尔滨东安发动机有限公司 | A kind of screw-threaded coupling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
| CN110925288B (en) * | 2019-12-13 | 2023-03-14 | 成都理工大学 | Quick and reliable locknut suit |
| CN110985550A (en) * | 2019-12-23 | 2020-04-10 | 中国航发哈尔滨轴承有限公司 | Anti-loosening assembly for preventing bearing from moving |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |