CN206600368U - A kind of loose bush attachment structure - Google Patents
A kind of loose bush attachment structure Download PDFInfo
- Publication number
- CN206600368U CN206600368U CN201621304970.1U CN201621304970U CN206600368U CN 206600368 U CN206600368 U CN 206600368U CN 201621304970 U CN201621304970 U CN 201621304970U CN 206600368 U CN206600368 U CN 206600368U
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- loose bush
- piece
- ears
- attachment structure
- auricle
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Abstract
The utility model provides a kind of loose bush attachment structure, for connecting monaural piece and ears piece, including oscillating bearing, band convex shoulder bushing, loose bush and bolt assembly, the oscillating bearing is arranged in the monaural piece through hole, it is described to be separately positioned on convex shoulder bushing and the loose bush in two through holes of the ears piece, the band convex shoulder bushing is interference fitted with the ears piece, and the loose bush coordinates with the ears piece gap.The utility model uses band convex shoulder press-in bushing spacing without additional bending moment auricle attachment structure, the lateral load that Bolt Tightening Force square is produced is directly delivered to oscillating bearing and opposite side auricle by loose bush, play a part of fixed monaural oscillating bearing, additional bending moment is not produced to ears auricle, improve auricle fatigue life；Loose bush is readily disassembled installation simultaneously, is easy to the dismounting between auricle.
Description
Technical field
The utility model is related to helicopter structure design field, and in particular to a kind of loose bush attachment structure.
Background technology
Monaural with oscillating bearing is connected with ears to be typically connected by screw bolts, to prevent the abrasion of bolt and auricle,
The endoporus of ears installs bushing.Bushing carries convex shoulder with assembling mode of the auricle using interference fit, bushing.It is general to be served as a contrast in press-in
After set, the convex shoulder end face of bushing is carried out adding work, it is ensured that leave small―gap suture, it is ensured that the smooth installation and fixation of monaural.
The defect of background technology：
This attachment structure relies primarily on Bolt Tightening Force square and produces additional lateral load to ears, to fix monaural.By
There is gap between monaural and bush end face, ears is there is additional bending moment, fatigue life is affected.Pass through control at present
Build-up tolerance between monaural and ears, it is ensured that small―gap suture coordinates, can reduce ears stress concentration, but still can not avoid lateral curved
The presence of square, while small―gap suture coordinates also result in inconvenience to the dismounting between auricle.
Utility model content
In order to solve the above problems, the utility model provides a kind of loose bush attachment structure, for connecting monaural piece
With ears piece.Propose that one kind can avoid ears by additional bending moment, improve auricle fatigue life, and the auricle connection of convenient disassembly
Structure.
The utility model loose bush attachment structure, for connecting monaural piece and ears piece, including oscillating bearing, band convex shoulder
Bushing, loose bush and bolt assembly, the oscillating bearing are arranged in the monaural piece through hole, the band convex shoulder bushing with
The loose bush is separately positioned in two through holes of the ears piece, and the band convex shoulder bushing is matched somebody with somebody with the ears piece interference
Close, the loose bush coordinates with the ears piece gap.
Preferably, in addition to packing ring, it is arranged on the outside of the ears piece with the loose bush.
In such scheme preferably, the band convex shoulder bushing is L-type structure, wherein a side interference is connected to ears piece
Through hole in, another side is not shorter than the oscillating bearing inner ring at least to outside the through hole to the length of extension on the outside of the through hole
The length of side extension.
In such scheme preferably, the length vertically of the loose bush is more than the axial direction of the ears piece through hole
Length.
In such scheme preferably, when the loose bush is attached in the through hole, have on the outside of the ears piece
There is surplus, the surplus makes there is gap between the ears piece and the packing ring.
In such scheme preferably, the outer ring of the oscillating bearing is interference fitted with the monaural piece through hole.
In such scheme preferably, the nut of the bolt assembly is positioned close to the ears piece with loose bush
Outside.
The utility model uses band convex shoulder press-in bushing spacing without additional bending moment auricle attachment structure, the production of Bolt Tightening Force square
Raw lateral load is directly delivered to oscillating bearing and opposite side auricle by loose bush, plays fixed monaural oscillating bearing
Effect, does not produce additional bending moment to ears auricle, improves auricle fatigue life；Loose bush is readily disassembled installation simultaneously, just
Dismounting between auricle.
Brief description of the drawings
Fig. 1 is the structural representation of a preferred embodiment of the utility model loose bush attachment structure.
Wherein, 1 is that monaural 1,2 is ears, 3 is oscillating bearing, 4 is screw rod, 5 is band convex shoulder bushing, 6 is loose bush, 7
It is packing ring for nut, 8.
Embodiment
To make the purpose, technical scheme and advantage of the utility model implementation clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Described reality
It is a part of embodiment of the utility model to apply example, rather than whole embodiments.The embodiment described below with reference to accompanying drawing
It is exemplary, it is intended to for explaining the utility model, and it is not intended that to limitation of the present utility model.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of the utility model protection.Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, is for only for ease of description the utility model and simplifies description, rather than indicate or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The limitation of novel protected scope.
The utility model is described in further details below by embodiment.
Fig. 1 is that the utility model constitutes sketch without additional bending moment auricle attachment structure, as shown in figure 1, main by monaural piece
1st, ears piece 2, oscillating bearing 3, band convex shoulder bushing 5, loose bush 6, bolt assembly are constituted, the bolt assembly include screw rod 4,
Packing ring 8 and nut 7.The oscillating bearing is arranged in the monaural piece through hole, the band convex shoulder bushing 5 and the loose bush
6 are separately positioned in two through holes of the ears piece 2, and the band convex shoulder bushing 5 is interference fitted with the ears piece 2, described
Loose bush 6 coordinates with the gap of ears piece 2, and oscillating bearing 3 is fixed on monaural using interference fit；Band convex shoulder bushing is adopted
With interference fit press-in ears side auricle, position-limiting action is played；The endoporus of loose bush and ears side auricle is using between small
Gap coordinates；Fastened between monaural and ears by bolt assembly.
It is understood that the packing ring 8 is arranged on the outside of the ears piece with the loose bush.
In the present embodiment, the band convex shoulder bushing is L-type structure, wherein a side interference is connected to the through hole of ears piece
Interior, another side is not shorter than the oscillating bearing inner ring at least to extension on the outside of the through hole to the length of extension on the outside of the through hole
Length.
It should be noted that the length vertically of the loose bush is more than the axial length of the ears piece through hole.
Further, when the loose bush is attached in the through hole, there is surplus on the outside of the ears piece, it is described
Surplus makes there is gap between the ears piece and the packing ring.
It should be noted that the outer ring of the oscillating bearing is interference fitted with the monaural piece through hole.
In the present embodiment, the nut of the bolt assembly is positioned close to the outside of the ears piece with loose bush
Key point of the present utility model：
1) ears side auricle uses the loose bush that small―gap suture coordinates, and liner sleeve length must ensure to protrude ear after the completion of assembling
Piece end face；
2) ears opposite side auricle uses band convex shoulder to be pressed into bushing, and liner sleeve length must ensure after the completion of assembling, bush end face
Non-bulging auricle end face.
The utility model uses band convex shoulder press-in bushing spacing without additional bending moment auricle attachment structure, the production of Bolt Tightening Force square
Raw lateral load is directly delivered to oscillating bearing and opposite side auricle by loose bush, plays fixed monaural oscillating bearing
Effect, does not produce additional bending moment to ears auricle, improves auricle fatigue life；Loose bush is readily disassembled installation simultaneously, just
Dismounting between auricle.
It is last it is to be noted that：Above example is only limited to illustrate the technical solution of the utility model, rather than to it
System.Although the utility model is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art should manage
Solution：It can still be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment of the utility model
The spirit and scope of technical scheme.
Claims (7)
1. a kind of loose bush attachment structure, for connecting monaural piece and ears piece, it is characterised in that including oscillating bearing, band
Convex shoulder bushing, loose bush and bolt assembly, the oscillating bearing are arranged in the monaural piece through hole, the band convex shoulder lining
Set is separately positioned in two through holes of the ears piece with the loose bush, the band convex shoulder bushing and the ears piece mistake
It is full of cooperation, the loose bush coordinates with the ears piece gap.
2. loose bush attachment structure as claimed in claim 1, it is characterised in that：Also include packing ring, be arranged on described
The outside of the ears piece of loose bush.
3. loose bush attachment structure as claimed in claim 1, it is characterised in that：The band convex shoulder bushing is L-type structure, its
In a side interference be connected in the through hole of ears piece, another side is not shorter than at least described to the length of extension on the outside of the through hole
The length that oscillating bearing inner ring extends to through hole outside.
4. loose bush attachment structure as claimed in claim 2, it is characterised in that：The length vertically of the loose bush
More than the axial length of the ears piece through hole.
5. loose bush attachment structure as claimed in claim 2, it is characterised in that：The loose bush is attached to the through hole
When interior, there is surplus on the outside of the ears piece, the surplus makes there is gap between the ears piece and the packing ring.
6. loose bush attachment structure as claimed in claim 1, it is characterised in that：The outer ring of the oscillating bearing and the list
Auricle through hole is interference fitted.
7. loose bush attachment structure as claimed in claim 1, it is characterised in that：The nut of the bolt assembly, which is arranged on, to be leaned on
The outside of the nearly ears piece with loose bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304970.1U CN206600368U (en) | 2016-11-30 | 2016-11-30 | A kind of loose bush attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304970.1U CN206600368U (en) | 2016-11-30 | 2016-11-30 | A kind of loose bush attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600368U true CN206600368U (en) | 2017-10-31 |
Family
ID=60148274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621304970.1U Active CN206600368U (en) | 2016-11-30 | 2016-11-30 | A kind of loose bush attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600368U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893781A (en) * | 2017-12-14 | 2018-04-10 | 中车大连机车研究所有限公司 | A kind of conducting structure of annulus |
| CN108082449A (en) * | 2018-03-06 | 2018-05-29 | 中航通飞研究院有限公司 | A kind of large aircraft control surface suspension structure |
| CN111059140A (en) * | 2019-12-25 | 2020-04-24 | 中国航空工业集团公司西安飞机设计研究所 | Clamping stagnation prevention hinge structure |
| CN111963562A (en) * | 2020-08-20 | 2020-11-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Lug connection structure |
| CN113374800A (en) * | 2021-07-08 | 2021-09-10 | 中国航发湖南动力机械研究所 | Quick detachable universal shaft sleeve connecting device |
| CN113915204A (en) * | 2020-07-10 | 2022-01-11 | 江西昌河航空工业有限公司 | Fork lug assembly and assembly method thereof |
-
2016
- 2016-11-30 CN CN201621304970.1U patent/CN206600368U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893781A (en) * | 2017-12-14 | 2018-04-10 | 中车大连机车研究所有限公司 | A kind of conducting structure of annulus |
| CN107893781B (en) * | 2017-12-14 | 2023-12-26 | 中国铁路总公司 | Conducting structure of ring |
| CN108082449A (en) * | 2018-03-06 | 2018-05-29 | 中航通飞研究院有限公司 | A kind of large aircraft control surface suspension structure |
| CN111059140A (en) * | 2019-12-25 | 2020-04-24 | 中国航空工业集团公司西安飞机设计研究所 | Clamping stagnation prevention hinge structure |
| CN113915204A (en) * | 2020-07-10 | 2022-01-11 | 江西昌河航空工业有限公司 | Fork lug assembly and assembly method thereof |
| CN111963562A (en) * | 2020-08-20 | 2020-11-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Lug connection structure |
| CN113374800A (en) * | 2021-07-08 | 2021-09-10 | 中国航发湖南动力机械研究所 | Quick detachable universal shaft sleeve connecting device |
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