CN206437193U - Depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure - Google Patents
Depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure Download PDFInfo
- Publication number
- CN206437193U CN206437193U CN201720056742.5U CN201720056742U CN206437193U CN 206437193 U CN206437193 U CN 206437193U CN 201720056742 U CN201720056742 U CN 201720056742U CN 206437193 U CN206437193 U CN 206437193U
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- Prior art keywords
- nylon sleeve
- rubber mat
- boss
- dividing plate
- retaining ring
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Abstract
Depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure, the utility model are related to Helicopter Technology field；Rolling bearing is arranged in the bearing fit hole in the middle part of nylon sleeve, and is interference fitted between the two；The boss of described nylon sleeve side is located in the boss mounting hole in rubber mat plate；Described nylon sleeve retaining ring is set in the outside of boss；Several bolts hole are arranged with described nylon sleeve, rubber mat plate and nylon sleeve retaining ring；Described rubber mat plate is fitted setting with tail boom frame dividing plate；Described clamping screw is sequentially passed through after the bolt hole in nylon sleeve, rubber mat plate and nylon sleeve retaining ring, is connected with locking nut.Install convenient, due to being designed with rubber mat plate, significantly slows down the influence that flutter is brought, while harsh assembly technology in assembling process is solved the problems, such as, and also processing cost is low, and suitable depopulated helicopter is used.
Description
Technical field
The utility model is related to Helicopter Technology field, and in particular to depopulated helicopter composite tail boom frame dividing plate and gold
Belong to tail transmission shaft attachment structure.
Background technology
Helicopter has greatly expanded the application model of aircraft as one of creation of the great characteristic of 20th century aeronautical technology
Enclose.Helicopter is typical dual-use product, the multiple fields such as can be widely applied to transport, go on patrol, travel, giving first aid to.
With updating for technology of helicopter design, composite has also obtained different degrees of application, composite wood on helicopter
The plasticity of material itself is good, easy-formation, while certain load can be born in composite fiber direction, especially in helicopter
Tail boom frame dividing plate on apply than wide.The torsion that helicopter tail transmission shaft is subject to is larger, therefore generally or using conventional
Metal structure, to ensure the reliability of design.
At present, the assembling directly contacted is not present between the tail boom bulkhead and tailing axle that are molded using composite to close
System, can reserve tailing axle through hole on composite tail boom bulkhead, it is ensured that tailing axle by while do not interfere phenomenon with bulkhead, together
The function of metal tail boom bulkhead is consistent.
With updating for airplane design theory, on the premise of rational in infrastructure, mitigate weight just into helicopter knot
The emphasis of structure design, existing ripe designing technique is to be connected using metal bulkhead with metal tailing axle, the design of metal bulkhead
When reserve enough size nargin, in order to avoid occur interference situation during assembling, there is a generality in such design
Problem, that is, the entire length of tailing axle is long, and tailing axle is in the process through metal bulkhead, bulkhead is not played fixed or propped up
Support is acted on, and big opening is only designed with frame dividing plate and reserves tailing axle through passage, because tailing axle entire length is long, tailing axle it
Between lack fixed support, therefore chatter phenomenon occurs in tailing axle during rotation, influences the transmission efficiency of helicopter tailing axle.
In order to solve the Flutter Problem caused by power transmission shaft is long, another common design form is occurred in that, is exactly by tailing axle and tail
Beam frame dividing plate is fixed, and such design can actually reduce the long flutter influence brought of tailing axle, but the new problem brought is just
It is complicated assembly technology, most distinct issues are exactly the requirement of axiality, because if it cannot be guaranteed that the axiality of tailing axle, that
Tailing axle will be caused can not to be assembled on two frame dividing plates, fit on underaction, assembly difficulty are that this class formation is difficult to push away greatly
Wide main cause, more unsuitable civilian depopulated helicopter is used, it would be highly desirable to improved.
Utility model content
The purpose of this utility model is that defect and deficiency for prior art, there is provided one kind is simple in construction, is designed and closed
Reason, depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure easy to use, install convenient, due to
Rubber mat plate is designed with, significantly slows down the influence that flutter is brought, while harsh assembly technology in assembling process is solved the problems, such as,
And processing cost is low, suitable depopulated helicopter is used.
To achieve the above object, the technical solution adopted in the utility model is：It includes rolling bearing, clamping screw, Buddhist nun
Actor playing a supporting role's cylinder, rubber mat plate, nylon sleeve retaining ring, locking nut；Rolling bearing is arranged on the bearing fit in the middle part of nylon sleeve
In hole, and it is interference fitted between the two；The boss of described nylon sleeve side is located in the boss mounting hole in rubber mat plate
It is interior；Described nylon sleeve retaining ring is set in the outside of boss；Described nylon sleeve, rubber mat plate and nylon sleeve lock
Several bolts hole are arranged with tight ring；Described rubber mat plate is fitted setting with tail boom frame dividing plate；Described clamping screw
Sequentially pass through after the bolt hole in nylon sleeve, rubber mat plate and nylon sleeve retaining ring, be connected with locking nut.
Further, the length of described boss is more than the length of rolling bearing, so that tail transmission shaft is in rotation process,
By displacement nargin, status requirement is adapted to meet rolling bearing in the axial direction automatically in the axial direction for rolling bearing.
Further, described boss is nylon sleeve lateral extension.
After said structure, the utility model has the beneficial effect that：Depopulated helicopter composite wood described in the utility model
Expect tail boom frame dividing plate and metal tail transmission shaft connecting structure, install convenient, due to being designed with rubber mat plate, significantly slows down flutter band
The influence come, while harsh assembly technology in assembling process is solved the problems, such as, and also processing cost is low, is adapted to depopulated helicopter
Use, the utility model has simple in construction, and it is reasonable to set, the advantages of low manufacture cost.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the installation of the utility model and tail transmission shaft.
Fig. 2 be in Fig. 1 A-A to sectional view.
Fig. 3 is the installation exploded view of the utility model and tail transmission shaft.
Description of reference numerals：
Rolling bearing 1, clamping screw 2, nylon sleeve 3, boss 3-1, bearing fit hole 3-2, rubber mat plate 4, boss peace
Fill hole 4-1, nylon sleeve retaining ring 5, locking nut 6, tail transmission shaft 7, bolt hole 8.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Referring to as shown in Figure 1-Figure 3, the technical scheme that present embodiment is used is：It includes rolling bearing 1, locking
Bolt 2, nylon sleeve 3, rubber mat plate 4, nylon sleeve retaining ring 5, locking nut 6；Rolling bearing 1 is arranged on nylon sleeve 3
In the bearing fit hole 3-2 at middle part, and it is interference fitted between the two；The boss 3-1 of the described side of nylon sleeve 3 is located in rubber
In boss mounting hole 4-1 in rubber cushion plate 4, it is ensured that the integrality of total；Described nylon sleeve retaining ring 5 is set in
Boss 3-1 outside；Four spiral shells are arranged with described nylon sleeve 3, rubber mat plate 4 and nylon sleeve retaining ring 5
Keyhole 8；Described rubber mat plate 4 is fitted setting with tail boom frame dividing plate；Described clamping screw 2 sequentially passes through nylon sleeve 3, rubber
After bolt hole 8 on rubber cushion plate 4 and nylon sleeve retaining ring 5, it is connected with locking nut 6, by nylon sleeve 3, rubber
Backing plate 4, nylon sleeve retaining ring 5 and tail boom frame dividing plate are locked together.
Further, described boss 3-1 length is more than the length of rolling bearing 1, so that tail transmission shaft 7 was being rotated
Cheng Zhong, rolling bearing 1 is in the axial direction by displacement nargin, and to meet, rolling bearing 1 is automatic in the axial direction to adapt to status requirement.
Further, described boss 3-1 is the lateral extension of nylon sleeve 3.
Further, described rolling bearing 1 is interference fitted with nylon sleeve 3, and nylon sleeve 3 is nonmetallic materials,
When being that the rolling bearing 1 of metal coordinates, be not in potential difference, can prevent dissimilar metal from damaging.
The operation principle of present embodiment：Tail transmission shaft 7 passes through rolling bearing 1, coordinates with the gap of rolling bearing 1,
Tail transmission shaft 7 can be ensured in the axial direction by enough axial freedoms, rolling bearing 1 is interference fitted with nylon sleeve 3, this
Design, which can charge, plays the rotating function of rolling bearing 1, and the cooperation of rolling bearing 1 and nylon sleeve 3 is integrally formed, then with rubber
Backing plate 4 is connected, and rubber mat plate 4 can play cushioning effect during tail transmission shaft 7 is rotated, in order that total is more
Reliably, nylon sleeve 3 and rubber mat plate 4 are pressed together using nylon sleeve retaining ring 5, finally by clamping screw 2 with
Locking nut 6 is connected.
After said structure, present embodiment has the beneficial effect that：Nobody described in present embodiment goes straight up to
Machine composite tail boom frame dividing plate and metal tail transmission shaft connecting structure, install convenient, due to being designed with rubber mat plate, significantly subtract
The influence that slow flutter is brought, while harsh assembly technology in assembling process is solved the problems, such as, and also processing cost is low, is adapted to nothing
People's helicopter is used, and the utility model has simple in construction, and it is reasonable to set, the advantages of low manufacture cost.
It is described above, only to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple
Other modifications or equivalent substitution that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, all should cover among right of the present utility model.
Claims (3)
1. depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure, it is characterised in that：It, which is included, turns
Dynamic bearing, clamping screw, nylon sleeve, rubber mat plate, nylon sleeve retaining ring, locking nut；Rolling bearing is arranged on nylon
In bearing fit hole in the middle part of sleeve, and it is interference fitted between the two；The boss of described nylon sleeve side is located in rubber
In boss mounting hole in backing plate；Described nylon sleeve retaining ring is set in the outside of boss；Described nylon sleeve, rubber
Several bolts hole are arranged with backing plate and nylon sleeve retaining ring；Described rubber mat plate is fitted with tail boom frame dividing plate and set
Put；Described clamping screw is sequentially passed through after the bolt hole in nylon sleeve, rubber mat plate and nylon sleeve retaining ring, with lock
Tight nut is connected.
2. depopulated helicopter composite tail boom frame dividing plate according to claim 1 and metal tail transmission shaft connecting structure,
It is characterized in that：The length of described boss is more than the length of rolling bearing.
3. depopulated helicopter composite tail boom frame dividing plate according to claim 1 and metal tail transmission shaft connecting structure,
It is characterized in that：Described boss is nylon sleeve lateral extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056742.5U CN206437193U (en) | 2017-01-17 | 2017-01-17 | Depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056742.5U CN206437193U (en) | 2017-01-17 | 2017-01-17 | Depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206437193U true CN206437193U (en) | 2017-08-25 |
Family
ID=59635313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720056742.5U Expired - Fee Related CN206437193U (en) | 2017-01-17 | 2017-01-17 | Depopulated helicopter composite tail boom frame dividing plate and metal tail transmission shaft connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206437193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249343A (en) * | 2020-10-29 | 2021-01-22 | 中国航发湖南动力机械研究所 | Tail transmission shaft and helicopter |
-
2017
- 2017-01-17 CN CN201720056742.5U patent/CN206437193U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249343A (en) * | 2020-10-29 | 2021-01-22 | 中国航发湖南动力机械研究所 | Tail transmission shaft and helicopter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20180117 |