CN208313142U - A kind of rotatable tail gear - Google Patents
A kind of rotatable tail gear Download PDFInfo
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- CN208313142U CN208313142U CN201721894813.5U CN201721894813U CN208313142U CN 208313142 U CN208313142 U CN 208313142U CN 201721894813 U CN201721894813 U CN 201721894813U CN 208313142 U CN208313142 U CN 208313142U
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- empennage
- rotating cylinder
- support tube
- auricle
- bearing
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Abstract
The utility model discloses a kind of rotatable tail gears, described device includes with lower component: a support tube (1), one rotating cylinder (2), with four empennages (3) in X-type distribution, pairs of angular contact ball bearing (4) are installed between the support tube (1) and the rotating cylinder (2), positioning component (5) are provided with for being connected with the other devices of aircraft in the front of described device, the rear portion of described device be provided with for install and limit the bearing (4) and with sealing function enclosing seal assembly (6) and for the locking solution lock set (7) of locking and unlock.The rotatable tail gear of the utility model is only made of mechanical mechanism, rotation tail gear itself rotation under external air loads effect is realized by structure design, without energy recharge, without electronic component or control program, it is simple and reliable, on the basis of realizing the necessary function of rotation tail gear and reliability, by structural complexity and cost control in reduced levels, it can be applied to new model research and development and old model improved.
Description
Technical field
The utility model relates to a kind of tail gears.
Background technique
With the development of target missile technology, rotates tail gear and be applied in more and more models, because of its energy
Preferably roll channel is controlled, has become the key components of target missile structure.Such rotation tail gear can be with
Biggish axial direction and normal g-load, built-in bearing, flexible rotation are born simultaneously, and there is certain environmental suitability, can be fitted
Answer the harsh environments such as sand and dust and wet fog.
At present there are many technical solutions of rotation tail gear, but since rotation tail gear is the key that target missile structure group
At part, therefore its structure has to optimize, and the selection including kinds of bearings is connect with installation, empennage and rotating cylinder
Selection of mode etc. is all the key technology in structure design.Kinds of bearings mostly uses thrust ball bearing and deep groove ball bearing at present
Combining form, though this combining form is able to satisfy axial direction and normal g-load requirement, its structure type is more complicated, processing and peace
Reload request all acquires a certain degree of difficulty, and stability is not also high.Empennage with the connection type of rotating cylinder is mostly that the oblique screw of comb teeth-shaped connects, though
Right structure is uncomplicated, and handling are also more convenient, but tiltedly screw stress is poor, processing difficulties, while tiltedly screw nearby has protrusion
Also there is certain influence on aerodynamic configuration.
Utility model content
Rotation tail gear at present there are aiming at the problem that, the purpose of the utility model is to provide a kind of new rotatable tails
Swing device, described device include with lower component: a support tube, a rotating cylinder and four empennages in X-type distribution, in the branch
Pairs of angular contact ball bearing is installed between support cylinder and the rotating cylinder, the front of described device is provided with positioning component and is used for
It is connected with the other devices of aircraft, is provided at the rear portion of described device for installing and limiting the bearing and there is sealing
The enclosing seal assembly of effect and locking solution lock set for locking and unlock.
In a preferred technical solution, the rotating cylinder positioning table protruded on the rotating cylinder configured with one, by institute
State the two sides for being positioned at the rotating cylinder positioning table of the outer ring of matched bearings.
In another preferred technical solution, a support tube positioning table, the branch are configured in the support tube two sides
Support cylinder positioning table and enclosing seal assembly co-locate the inner ring of the matched bearings.
In another preferred technical solution, the empennage is divided into empennage auricle and empennage stabilization two parts, described
Empennage is connect by empennage auricle with rotating cylinder.
It is further preferable that the connection of the empennage auricle and rotating cylinder is the straight screw connection of countersunk head.
Particularly preferably, the connection of the empennage auricle and rotating cylinder is located at the rotating cylinder positioning table.
In a preferred technical solution, empennage auricle and empennage stabilization are by the way of being integrally machined, while tail
There is arc surface to carry out transition between wing lug piece and empennage stabilization.
In another preferred technical solution, enclosing/seal assembly is that major thread connects with support tube.
In another preferred technical solution, the pairs of angular contact ball bearing is single-row centripetal angular contact ball bearing.
It is further preferable that the fore shaft of the pairs of angular contact ball bearing is in outer ring.
The rotation tail gear of the utility model connects empennage and rotating cylinder etc. using pairs of angular contact ball bearing, straight screw
Corrective measure, with substantive distinguishing features below:
1. using pairs of angular contact ball bearing.Bearing be fore shaft outer ring single-row centripetal angular contact ball bearing, using at
To the angular contact bearing of back-to-back installation, it is able to bear biggish bidirectional propulsion and radial force, and rigidity and receiving tilting moment
Performance is good.The mode that opposite two pairs of bearings are applied in combination, this can make axial aperture structure design simple, reduce bearing set-up time and difficulty
Degree.Rotating cylinder is rotated around support tube when work, therefore bearing and rotation tube inner surface interference fit, is matched with support tube outer surface gap
It closes.Lubricating grease is coated at clearance fit, to guarantee its flexible rotation.The utility model rotates two axis of the bearing of tail gear
Bearing outer-ring is located at the two sides of rotating cylinder positioning table；The inner ring of two bearings by be located at their two sides support tube positioning table and
Enclosing/seal assembly co-locates.When bearing is installed, matched bearings is mounted on rotating cylinder first, then by bearing and rotation
Cylinder covers on support tube together, is then screwed into enclosing/seal assembly until bearing is extruded positioning.In addition, enclosing/sealing
Component and support tube play good sealing function to bearing, this just directly avoids sand and dust in transport and storage process and revolves to bearing
Corrosiveness of the influence and wet fog turned to bearing, the reliability for improving target missile transport and storing for a long time.
2. straight screw connecting band auricle empennage and rotating cylinder.Two parts empennage auricle and empennage stabilization of empennage use one
The mode of body processing, this guarantees the bonding strength between empennage auricle and empennage stabilization, stub fin auricle and empennage peace
Determine to use welding manner much better between face, design requirement is not achieved because weld strength is limited by technological level sometimes, will cause
Weld cracking, empennage auricle and empennage stabilization Joint failure.Empennage auricle through-thickness carries out curved face processing and rotating cylinder
Barrel cooperation, and empennage auricle is sunk in rotating cylinder barrel；The empennage auricle subsidence position just axis thicker in rotating cylinder
It holds at positioning table, this facilitates the intensity for ensuring empennage installation place；Connected between empennage auricle and rotating cylinder using the straight screw of countersunk head
It connects, 3 pairs of screws are symmetrically distributed in empennage two sides, and installation hole axle both can guarantee empennage auricle and rotation along rotating cylinder radial direction in this way
Bonding strength between cylinder, and it is able to satisfy aerodynamic configuration requirement, while easy to loading and unloading.
By having substantive technical solution above, rotating cylinder only needs the positioning table of a protrusion, while realizing axis
The reliable installation of the positioning and empennage held；Determining for bearing is achieved that substantially without special machining feature on support tube and baffle
Position.Relative to previous rotation tail fin design, the use of pairs of angular contact ball bearing makes plus the ingehious design of support tube, baffle
Rotation tail structure obviously simplifies, easy to process, is easily installed.
The structure is demonstrated by Strength co-mputation and verification experimental verification and brings excellent technical effect, and there is increasing
Simplicity, high efficiency and feasibility.The structure design work reliability of this patent is substantially achieved by test and simulation calculation
Verifying.Test the sample that uses, carried out vibration test, test rank from 0.02 be added to 0.2 after continue at least 1min, while tail
The wing is rotated with the speed of 60r/min, and no damage of components the abnormal phenomenon such as falls and occurs.It is each that rotation empennage is calculated with Abaqus
The intensity of component, safety coefficient is 1.5 or more.This technology is only made of mechanical mechanism, is realized by structure design in outside
Aerodynamic loading acts on lower rotation tail gear itself rotation, is not necessarily to energy recharge, without electronic component or control program, simply may be used
It leans on.On the basis of realizing the necessary function of rotation tail gear and reliability, by structural complexity and cost control in lower water
It is flat, it can be applied to new model research and development and old model improved.The structure design of the utility model is reasonable, and the material used is all common
Steel and aluminium, the cost of material is low, and total quality is smaller, and flexibility is high, and simultaneous processing is simple, easy for installation, occupied space
It is smaller；Pairs of angular contact ball bearing and straight screw all use standard component, improve reliability of structure, maintainability and safety.
Detailed description of the invention
The rotatable tail gear axial section of Fig. 1；
The rotatable tail gear radial direction perspective view of Fig. 2；
The rotatable tail gear axial direction perspective view of Fig. 3；
Description of symbols:
1: support tube
11: support tube positioning table
2: rotating cylinder
21: rotating cylinder positioning table
3: empennage
31: empennage auricle
32: empennage stabilization
4: pairs of angular contact ball bearing
5: positioning component
6: enclosing seal assembly
7: locking solution lock set
8: the straight screw of countersunk head
Specific embodiment
Further describe the utility model combined with specific embodiments below, the advantages of the utility model and feature will be with
Description and it is apparent.But examples are merely exemplary for these, does not constitute to the protection scope of the utility model any
Limitation.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 show a preferred embodiment of the rotatable tail gear of the utility model.It is described to revolve
Turning empennage includes following structural member: support tube 1, enclosing seal assembly 6, rotating cylinder 2, empennage 3, is determined pairs of angular contact ball bearing 4
Hyte part 5, locking solution lock set 7, the straight screw 8 of countersunk head.Support tube 1 is most important load-carrying construction part, bears rotation empennage dress
All self weights set and external applied load, front end are docked by screw hole to other related sections, and middle position is mounted to diagonally contact
Ball bearing 4, rear end are connected by major thread and enclosing seal assembly 6.Pairs of angular contact ball bearing 4 is mounted on support tube 1, rotation
Between cylinder 2 and enclosing seal assembly 6, it is machined with bearing mounting groove on support tube, rotating cylinder respectively, bearing mounting groove and diagonally
4 clearance fit of contact ball bearing is coated with lubricating grease at clearance fit.Enclosing seal assembly 6 is mounted on pairs of angular contact ball bearing 4
Behind, in addition to it has installation restriction effect to bearing, there are also sealing functions.Rotating cylinder 2 is also main load-carrying construction part, preceding
End and support tube 1 cooperate, and rear end and enclosing seal assembly 6 cooperate, and outer surface connects four empennages by straight screw, and inner surface adds
Work has bearing mounting groove to be mounted to diagonal contact ball bearing 4.Empennage is divided into 32 two parts of empennage auricle 31 and empennage stabilization, tail
Wing lug piece 31 and rotating cylinder 2 cooperate, and are connected by the straight screw 8 of countersunk head, appearance does not influence aerodynamic configuration requirement, empennage without protrusion
Stabilization 32 requires to design camber stabilization, empennage auricle 31 and empennage stabilization 32 using one according to aerodynamic configuration
The mode of processing, while thering is arc surface to carry out transition between empennage auricle 31 and empennage stabilization 32.Positioning component 5 is in rotation tail
When swing device is docked to other related sections, positioning action is played.Locking solution lock set 7 plays the role of limiting rotating cylinder, no
It is allowed to rotate freely in a non-operative state.Tail gear is rotated to after other related section docking, and positioning component 5 is in vertical
Direction the top, vertically bottom, four empennages are distributed locking solution lock set 7 in X-type.When body tilts flight,
Due to left and right sides airflow asymmetry, empennage 3 is interfered torque, drives rotating cylinder 2 to rotate around support tube 1, without causing
The rotation of undesirable entire body.
The rotatable tail gear bearing of the utility model is positioned such that: a rotating cylinder positioning is machined on rotating cylinder 2
Platform 21, two 4 outer rings of bearing are located at the two sides of this positioning table；There is a support tube positioning table 11 on support tube 1, two
The inner ring of bearing 4 is co-located by the support tube positioning table 11 and enclosing seal assembly 6 for being located at their two sides.When bearing 4 is installed,
Matched bearings 4 is mounted on rotating cylinder 2 first, then bearing 4 and rotating cylinder 2 are covered on support tube together, then by enclosing
Seal assembly 6 is screwed into until bearing 4 is extruded positioning.Enclosing seal assembly 6 and support tube 1 play sealing well to bearing and make
With.
This technology has passed through verification experimental verification, is processed into product by the detailed description of technical solution and is applied to BWIII-XL
On the target missile of model, in product practical application, this technology has given full play to its effect, has carried out effective control to roll channel
System, ensure that the normal flight of target missile.
Claims (10)
1. a kind of rotatable tail gear, which is characterized in that described device includes with lower component: a support tube (1), a rotating cylinder
(2) and four in X-type distribution empennages (3), pairs of corner connection is installed between the support tube (1) and the rotating cylinder (2)
It touches ball bearing (4), is provided with positioning component (5) for being connected with aircraft device, in the dress in the front of described device
The rear portion set be provided with for install and limit the bearing (4) and with sealing function enclosing seal assembly (6) and be used for
The locking solution lock set (7) of locking and unlock.
2. the apparatus according to claim 1, which is characterized in that the rotation configured with a protrusion on the rotating cylinder (2)
Cylinder positioning table (21), the outer ring of the matched bearings (4) is respectively positioned in the two sides of the rotating cylinder positioning table (21).
3. the apparatus according to claim 1, which is characterized in that fixed configured with a support tube in the support tube (1) two sides
Position platform (11), the support tube positioning table (11) and enclosing seal assembly (6) co-locate the inner ring of the matched bearings (4).
4. the apparatus according to claim 1, which is characterized in that the empennage (3) is divided into empennage auricle (31) and empennage peace
Determine face (32) two parts, the empennage (3) is connect by empennage auricle (31) with rotating cylinder (2).
5. device according to claim 4, which is characterized in that the empennage auricle (31) and the connection of rotating cylinder (2) are
The straight screw of countersunk head (8) connection.
6. device according to claim 5, which is characterized in that the connection position of the empennage auricle (31) and rotating cylinder (2)
In the rotating cylinder positioning table (21).
7. device according to claim 4, which is characterized in that empennage auricle (31) and empennage stabilization (32) are using one
The mode of processing, while thering is arc surface to carry out transition between empennage auricle (31) and empennage stabilization (32).
8. the apparatus according to claim 1, which is characterized in that enclosing seal assembly (6) and support tube (1) are that major thread connects
It connects.
9. the apparatus according to claim 1, which is characterized in that the bearing (4) is single-row centripetal angular contact ball bearing.
10. device according to claim 9, which is characterized in that the fore shaft of the bearing (4) is in outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721894813.5U CN208313142U (en) | 2017-12-28 | 2017-12-28 | A kind of rotatable tail gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721894813.5U CN208313142U (en) | 2017-12-28 | 2017-12-28 | A kind of rotatable tail gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208313142U true CN208313142U (en) | 2019-01-01 |
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ID=64724713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721894813.5U Active CN208313142U (en) | 2017-12-28 | 2017-12-28 | A kind of rotatable tail gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208313142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990792A (en) * | 2017-12-28 | 2018-05-04 | 北京威标至远科技发展有限公司 | A kind of rotatable tail gear |
-
2017
- 2017-12-28 CN CN201721894813.5U patent/CN208313142U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990792A (en) * | 2017-12-28 | 2018-05-04 | 北京威标至远科技发展有限公司 | A kind of rotatable tail gear |
| CN107990792B (en) * | 2017-12-28 | 2024-02-06 | 北京威标至远科技发展有限公司 | Rotatable tail wing device |
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