CN207554537U - A kind of keyed travelling self-locking thread insert - Google Patents
A kind of keyed travelling self-locking thread insert Download PDFInfo
- Publication number
- CN207554537U CN207554537U CN201721671797.3U CN201721671797U CN207554537U CN 207554537 U CN207554537 U CN 207554537U CN 201721671797 U CN201721671797 U CN 201721671797U CN 207554537 U CN207554537 U CN 207554537U
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- keyed
- locking
- self
- travelling
- thread insert
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Abstract
The utility model provides a kind of keyed travelling self-locking thread insert, is related to connector field, including：Interior swivel nut (1), external thread sleeve (2) and locking key (3).The keyed travelling self-locking thread insert of the utility model, there are two mutually nested swivel nuts for setting, there are predetermined gaps between interior swivel nut (1) and external thread sleeve (2), the central shaft of keyed travelling self-locking thread insert is dissociated along central point, it ensure that installation travelling nargin, which can be additionally used on stationary engine the part with large curved structure, improve installation, maintainability, reduce mount stress, there is larger practical value.
Description
Technical field
The utility model is related to connector field, more particularly to a kind of keyed travelling self-locking thread insert.
Background technology
The keyed self-locking thread insert used on advanced engine domestic at present is that inside and outside have screw thread and installed on external screw thread
The thin-walled fastener of pin key applied to mechanical connection, plays the role of good locking, steel screw is effectively avoided to be directly threaded into aluminium
In magnesium alloy or other materials casing threaded hole, ensure that matrix screw thread is injury-free, improve internal thread bonding strength and protect simultaneously
Casing has been protected, has solved the problems, such as to loosen during steel-wire screw-socket decomposition, improves the reliability of engine, in domestic and international leading water
It is flat.
All it is using traditional lock type steel-wire screw-socket, keyed self-locking thread insert all the time at home in aero-engine
Reliable operation, locking position are unlikely to deform, easy disassembly, the technical issues of having well solved lock type steel-wire screw-socket, but are locked
Tight shaped steel wire swivel nut easily loosens when decomposing, during assembling to tightening number, installation requires, needed during reseach of engine through
Often dismounting, and keyed self-locking thread insert is not suitable for the large-scale curved part of stationary engine, large-scale curved part is in process
Yielding, when assembling, is also easy to produce mount stress.With engine structure design continuous development, the continuous variation of structure type,
It is more and more to the needs of novel fastening structure.
Invention content
The utility model provides a kind of keyed travelling self-locking thread insert, is not suitable for curved surface zero to solve keyed self-locking thread insert
The problem of part and big mount stress.
In order to achieve the above object, the utility model adopts the following technical solution：
A kind of keyed travelling self-locking thread insert, including：
Interior swivel nut, in hollow cylinder, inner peripheral surface setting internal thread, the section of the interior swivel nut is in step-like, is had big
Cylinder and small cylinder；
External thread sleeve in hollow cylinder, is set in the outside of the interior swivel nut, and the peripheral surface of the external thread sleeve sets outer spiral shell
The keyway mouth of line and axial direction, inner peripheral surface setting is fluted, for the installation of interior swivel nut large cylinder, and the large cylinder with it is described
There are predetermined gaps between groove；
Locking key is arranged in the keyway mouth of the external thread sleeve, when the external thread sleeve is threadedly coupled with body, the locking key
It is locking for fixing.
The beneficial effects of the utility model：The keyed travelling self-locking thread insert of the utility model, improves swivel nut centre bore
Installation travelling nargin, reduces mount stress, greatly facilitates the installation and removal of part, improve installation, maintainability.
Description of the drawings
Attached drawing herein is incorporated into specification and forms the part of this specification, shows and meets the utility model
Embodiment, and for explaining the principle of the utility model together with specification.
Fig. 1 is keyed self-locking thread insert schematic diagram；
Fig. 2 is keyed self-locking thread insert sectional view；
Fig. 3 is keyed self-locking thread insert installation diagram；
Fig. 4 is the keyed travelling self-locking thread insert schematic diagram of the utility model；
Fig. 5 is the keyed travelling self-locking thread insert sectional view of the utility model.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.
Referring to Fig. 1 to Fig. 3, common keyed self-locking thread insert is made of two parts, i.e. locking key 5 and swivel nut 6.6 outer wall of swivel nut
On two keyway mouths or four keyway mouths are divided into according to the specification of keyed self-locking thread insert, according to specification on 7 internal thread hole of body
There is a keyway mouth of identical quantity, swivel nut 6 is aligned by when assembling with the keyway mouth of body 7, and locking key 5 is embedded in as required, is realized locking
Function.Keyed self-locking thread insert is used primarily on almag or the body threaded hole of other materials, the body for avoiding rigidity not high
Hole damage and scrap body, keyed self-locking thread insert replace traditional steel-wire screw-socket, solve steel-wire screw-socket locking torque decline and
Problem easily is loosened, effectively eliminates design hidden danger.And keyed self-locking thread insert is only useful in certain position of engine in itself, uses
Position, condition are restricted, i.e. centering sexual satisfaction requirement, could be assembled very well, and big component connects with big component on engine
When connecing, to neutral good it is difficult to ensure that.
As shown in Fig. 4 to Fig. 5, the keyed travelling self-locking thread insert of the utility model, including：Interior swivel nut 1, external thread sleeve 2 and
Locking key 3.
Specifically, interior swivel nut 1 is in hollow cylinder, and inner circumferential surface is provided with internal thread, and the section of interior swivel nut 1 is in step
Shape has large cylinder and small cylinder；External thread sleeve 2 is in hollow cylinder, is set in the outside of interior swivel nut 1, the peripheral surface of external thread sleeve 2
External screw thread and the keyway mouth of axial direction are set, and inner peripheral surface setting is fluted, for the installation of interior 1 large cylinder of swivel nut；Locking key 3 is set
In the keyway mouth of external thread sleeve 2, when external thread sleeve 2 is threadedly coupled with body 4, locking key 3 is locking for fixing.Advantageously, exist
In the present embodiment, there are predetermined gaps between the large cylinder of interior swivel nut 1 and the groove of external thread sleeve 2, ensure that the utility model
The installation travelling nargin of keyed travelling self-locking thread insert.
In engine assembly, need to realize that runner plate connect fastening with Middle casing, and the process requires neutrality,
During assembling, the keyed travelling self-locking thread insert of the utility model is threadedly coupled, and adopt by 2 external screw thread of external thread sleeve with Middle casing
Fixed with locking key 3 it is locking, then by adjusting the interior swivel nut 1 of keyed travelling self-locking thread insert come ensure internal thread hole and runner plate hole it
Between connect, you can realize the fast assembling-disassembling of runner plate reduces erection stress again.
The keyed travelling self-locking thread insert of the utility model by setting two mutually nested swivel nuts, increases its adaptation
Property, since there are gaps between two swivel nuts so that the central shaft of keyed travelling self-locking thread insert can dissociate along central point, greatly
Assembling is facilitated greatly, installation, maintainability is improved, reduces mount stress.In addition, the keyed travelling self-locking of the utility model
Swivel nut, it may also be used on stationary engine there is the part of large curved structure, there is larger practical value.The utility model
It is easy to operate, it can realize rapid-assembling/disassembling, improve efficiency, there is good economy, reliability.The utility model it is keyed
Use scope on the engine has been widened in the new construction for self-locking thread insert of moving about, the development for keyed self-locking thread insert, it is believed that this
The design studies of fastening structure not only make up technology short slab during China's aero-engine is developed, also design and carry for engine structure
Technological reserve is supplied, it is believed that the application of the keyed travelling self-locking thread insert of the utility model has broader development prospect.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, the change that can readily occur in
Change or replace, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with described
Subject to scope of the claims.
Claims (1)
1. a kind of keyed travelling self-locking thread insert, which is characterized in that including：
Interior swivel nut (1), in hollow cylinder, inner peripheral surface setting internal thread, the section of the interior swivel nut (1) is in step-like, is had
Large cylinder and small cylinder；
External thread sleeve (2) in hollow cylinder, is set in the outside of the interior swivel nut (1), and the peripheral surface of the external thread sleeve (2) is set
External screw thread and the keyway mouth of axial direction are put, inner peripheral surface setting is fluted, for the installation of interior swivel nut (1) large cylinder, and it is described big
There are predetermined gaps between cylinder and the groove；
Locking key (3) is arranged in the keyway mouth of the external thread sleeve (2), when the external thread sleeve (2) is threadedly coupled with body (4),
The locking key (3) is locking for fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671797.3U CN207554537U (en) | 2017-12-05 | 2017-12-05 | A kind of keyed travelling self-locking thread insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671797.3U CN207554537U (en) | 2017-12-05 | 2017-12-05 | A kind of keyed travelling self-locking thread insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554537U true CN207554537U (en) | 2018-06-29 |
Family
ID=62665957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721671797.3U Active CN207554537U (en) | 2017-12-05 | 2017-12-05 | A kind of keyed travelling self-locking thread insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554537U (en) |
-
2017
- 2017-12-05 CN CN201721671797.3U patent/CN207554537U/en active Active
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