CN108216599A - A kind of big nose wheel steering mechanism for manipulating angle of Double-linkage - Google Patents
A kind of big nose wheel steering mechanism for manipulating angle of Double-linkage Download PDFInfo
- Publication number
- CN108216599A CN108216599A CN201711340073.5A CN201711340073A CN108216599A CN 108216599 A CN108216599 A CN 108216599A CN 201711340073 A CN201711340073 A CN 201711340073A CN 108216599 A CN108216599 A CN 108216599A
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- CN
- China
- Prior art keywords
- pressurized strut
- sleeve
- upper bush
- linkage
- lower sleeve
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/50—Steerable undercarriages; Shimmy-damping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention belongs to aviation fields, and in particular to a kind of big nose wheel steering mechanism for manipulating angle of Double-linkage.The mechanism is characterized in：Two plug-type pressurized struts are superimposed by way of relaying and installing so that rotational angle greatly increases.The upper bush (3) of secondary pressurized strut (2) and lower sleeve (7) are equipped with using pressurized strut (5) integrated pushing, realize the rotation of first stage, after primary pressurized strut (5) reaches capacity position, secondary pressurized strut (2) can continue to press on output sleeve (4) and move, and realize second stage movement.Primary pressurized strut (5) and secondary pressurized strut (2) can move respectively, wherein motionless pressurized strut is locked by hydraulic oil, stop and posting are realized in mechanism self-locking or electronic phase-locking device.Meanwhile double pressurized struts can provide remaining, improve reliability.The preceding turning of big power can be realized using the mechanism, can realize carrier operation version aircraft, civil aircraft for the big turning angle of front-wheel power demand.
Description
Technical field
The invention belongs to aviation fields, and in particular to a kind of big nose wheel steering mechanism for manipulating angle of Double-linkage.
Background technology
Plug-type Nose Wheel Steering type of drive with its arm of force it is big, efficient, mechanism is simple and reliable the advantages that be widely used in it is each
In the Nose Wheel Steering system drive of a model.But the arm of force type of drive that conventional nonoculture is moved limits its turn due to structure type
Bending angle tends not to too greatly, and the no arm of force it will cause pressurized strut driving force is too small or structural collision is caused to interfere.Using spy
For the structure type of different mechanism amplification corner due to the limitation of its mechanism characteristics, powerturn angle can not be too big, and relates to
And the mechanism that arrives is more, adjustment is difficult, difficult in maintenance, so reliability is not high.And before being required in fields such as carrier-borne aircraft, civil aircrafts
Wheel powered angle generally requires to be more than ± 90 °, moves the angle that type of drive is just more difficult to reach required with nonoculture at this time.Using
The big manipulation angle nose wheel steering mechanism of Double-linkage of the present invention, it is simple in structure, easy to maintain, it can be easier to realize wide-angle power
It manipulates, and the primary and secondary pressurized strut of Double-linkage is mutually backed up, can realize the double remainings of operating mechanism, good reliability.
Invention content
Double-linkage wide-angle nose wheel steering mechanism, basic ideas are to be equipped with secondary work using pressurized strut (5) integrated pushing
The dynamic upper bush (3) of cylinder (2) and lower sleeve (7), realize the rotation of first stage, when primary pressurized strut (5) reaches capacity position
Afterwards, secondary pressurized strut (2) can continue to press on output sleeve (4) and move, and realize second stage movement.Primary pressurized strut (5) and time
Grade pressurized strut (2) can move respectively, wherein motionless pressurized strut is locked by hydraulic oil, mechanism self-locking or electronic phase-locking device are realized
Stop and posting.Primary pressurized strut (5) and secondary pressurized strut (2) can also move simultaneously, realize the go to action of dual-rate.Together
When primary pressurized strut (5) and secondary pressurized strut (2) moves alone and linkage can realize the large and small gain control of Nose Wheel Steering system
System is moved alone by secondary pressurized strut (2) during small gain, and turning velocity is slower, and angle of turn is smaller.Made during large gain by secondary
Dynamic cylinder (2) and primary pressurized strut (5) are linked, and turning velocity is fast, and angle of turn is big.
Technical solution：
A kind of big nose wheel steering mechanism for manipulating angle of Double-linkage by pillar (1), secondary pressurized strut (2), upper bush (3), drives
Moving sleeve (4), primary pressurized strut (5), connecting shaft (6), lower sleeve (7), toggle (8), piston rod (9), tire (10).
Mechanism is installed by three sleeve laps and is formed, and is completed power by secondary pressurized strut (2) and primary pressurized strut (5) and turned
To movement.Three rotational sleeve upper bushes (3), drive sleeve (4), lower sleeve (7) are sleeved in order on pillar (1), wherein on
Sleeve (3) and lower sleeve (7) are linked together by connecting shaft (6).Drive sleeve (4) exports sleeve for power, with toggle (8)
Connection, so as to which rotating torque is passed to wheel tire (10).Secondary pressurized strut (2) by trunnion be mounted on upper bush (3) and
Between lower sleeve (7) and with (7) one linkage of upper bush (3) and lower sleeve.Primary pressurized strut (5) is mounted on the branch of pillar (1)
On arm.The piston rod of primary pressurized strut (5) is connected, and drive upper bush by connecting shaft (6) with upper bush (3), lower sleeve (7)
(3), lower sleeve (7), connecting shaft (6), the rotation linkage together of secondary pressurized strut (2).Simultaneously the piston rod of secondary pressurized strut (2) with
Drive sleeve (4) is connected, and drive sleeve (4) is directly forced to be rotated.
The present invention has the advantage that and advantageous effect：(a) present invention can realize that (i.e. total deflection angle is big more than ± 90 °
In 180 °) power Nose Wheel Steering.(b) present invention uses conventional push-and-pull pressurized strut, and the arm of force is big, efficient.(c) present invention from
The double remainings of band, when one of actuator clamping stagnation, another actuator can continue movement and ensure aircraft direction controlling ability.
Description of the drawings
Fig. 1 is the structure chart of the present invention
Wherein：1- pillars, 2- grade pressurized strut, 3- upper bushes, 4- drive sleeves, the pressurized strut of 5- primary, 6- connecting shafts, 7-
Lower sleeve, 8- toggles, 9- piston rods, 10- tires
Fig. 2 is architecture neutral situation theory figure of the present invention
Fig. 3 is mechanism right avertence limiting figure of the present invention
Fig. 4 is mechanism left avertence limiting figure of the present invention
Specific embodiment
A kind of big nose wheel steering mechanism for manipulating angle of Double-linkage by pillar (1), secondary pressurized strut (2), upper bush (3), drives
Moving sleeve (4), primary pressurized strut (5), connecting shaft (6), lower sleeve (7), toggle (8), piston rod (9), tire (10) composition
Mechanism is installed by three sleeve laps and is formed, and is completed power by secondary pressurized strut (2) and primary pressurized strut (5) and turned
To movement.Three rotational sleeve upper bushes (3), drive sleeve (4), lower sleeve (7) are sleeved in order on pillar (1), wherein on
Sleeve (3) and lower sleeve (7) are linked together by connecting shaft (6).Drive sleeve (4) exports sleeve for power, with toggle (8)
Connection, so as to which rotating torque is passed to wheel tire (10).Secondary pressurized strut (2) by trunnion be mounted on upper bush (3) and
Between lower sleeve (7) and with (7) one linkage of upper bush (3) and lower sleeve.Primary pressurized strut (5) is mounted on the branch of pillar (1)
On arm.The piston rod of primary pressurized strut (5) is connected, and drive upper bush by connecting shaft (6) with upper bush (3), lower sleeve (7)
(3), lower sleeve (7), connecting shaft (6), the rotation linkage together of secondary pressurized strut (2).Simultaneously the piston rod of secondary pressurized strut (2) with
Drive sleeve (4) is connected, and drive sleeve (4) is directly forced to be rotated.
Fig. 2 is neutral position theoretical diagram.0 point is sleeve rotating center in figure；Bar AD is represented with upper bush (3), lower sleeve
(7) connecting rod of composition；C points are pressurized strut (5) and the tie point of support arm；Bar BO be drive sleeve (4), and with toggle (8) phase
Even, turning driving force is passed into tire.D points are pressurized strut (2) and upper bush (3), the tie point of lower sleeve (7).Work as start
Cylinder (5) elongation is pushed and is rotated by bar AD around O points, and bar AD drives pressurized strut (2) to be moved to farthest right position, while pressurized strut (2)
It shrinks, further drive sleeve (4) toward the right is pulled, that is, B points is driven to be moved to farthest right position.When pressurized strut (5) shorten,
It pulls and is rotated by bar AD around O points, bar AD drives pressurized strut (2) to be moved to leftmost position, while pressurized strut (2) extends, into one
Step pulls drive sleeve (4) toward the left side, that is, B points is driven to be moved to leftmost position.
When aircraft needs big power angle turning, pressurized strut (2) and pressurized strut (5) link simultaneously, wherein working as pressurized strut
(2) when contraction, pressurized strut (5) elongation, drive sleeve (4) drives front-wheel wide-angle right avertence, 3 state of corresponding diagram.
When pressurized strut (2) elongation, pressurized strut (5) are shunk, drive sleeve (4) drives front-wheel wide-angle left avertence, corresponding diagram 4
State.
Claims (1)
1. a kind of big nose wheel steering mechanism for manipulating angle of Double-linkage, by pillar (1), secondary pressurized strut (2), upper bush (3), driving
Sleeve (4), primary pressurized strut (5), connecting shaft (6), lower sleeve (7), toggle (8), piston rod (9), tire (10) composition；Its
It is characterized in that：The nose wheel steering mechanism is formed, and by three rotational sleeve overlapping installations by secondary pressurized strut (2) and primary work
Dynamic cylinder (5) completes electronic-controlled power steering movement；Three rotational sleeve upper bushes (3), drive sleeve (4), lower sleeve (7) are sleeved in order
On pillar (1), wherein upper bush (3) and lower sleeve (7) is linked together by connecting shaft (6)；Drive sleeve (4) is power output set
Cylinder, connect with toggle (8), so as to which rotating torque is passed to wheel tire (10)；Secondary pressurized strut (2) is pacified by trunnion
Between upper bush (3) and lower sleeve (7) and with (7) one linkage of upper bush (3) and lower sleeve；Primary pressurized strut (5) peace
On the support arm of pillar (1)；The piston rod of primary pressurized strut (5) passes through connecting shaft (6) and upper bush (3), lower sleeve (7) phase
Even, and upper bush (3), lower sleeve (7), connecting shaft (6), secondary pressurized strut (2) is driven to rotate linkage together；Secondary start simultaneously
The piston rod of cylinder (2) is connected, and drive sleeve (4) is directly forced to be rotated with drive sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711340073.5A CN108216599B (en) | 2017-12-14 | 2017-12-14 | Front wheel turning mechanism with double linkage and large operation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711340073.5A CN108216599B (en) | 2017-12-14 | 2017-12-14 | Front wheel turning mechanism with double linkage and large operation angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108216599A true CN108216599A (en) | 2018-06-29 |
| CN108216599B CN108216599B (en) | 2021-04-20 |
Family
ID=62652192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711340073.5A Active CN108216599B (en) | 2017-12-14 | 2017-12-14 | Front wheel turning mechanism with double linkage and large operation angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108216599B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334960A (en) * | 2018-11-29 | 2019-02-15 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of rotation pressure supply device and the undercarriage with it |
| CN109850132A (en) * | 2018-12-07 | 2019-06-07 | 中国航空工业集团公司成都飞机设计研究所 | A kind of detachable undercarriage contracting leg mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313364A (en) * | 1979-06-04 | 1982-02-02 | Pneumo Corporation | Dual cylinder linear servo motor |
| US5242131A (en) * | 1992-04-08 | 1993-09-07 | The Boeing Company | Steerable landing gear |
| CA2003018C (en) * | 1988-11-18 | 1994-02-22 | Bernard Bouchez | Landing gear turning device |
| CN101870357A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Nose wheel steering control mechanism of semi-annular actuating cylinder |
| CN101870358A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Toggle type nose wheel steering mechanism and work method |
| CN105564639A (en) * | 2014-10-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Dual-redundancy nose-wheel steering and shimmy-damping system |
-
2017
- 2017-12-14 CN CN201711340073.5A patent/CN108216599B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313364A (en) * | 1979-06-04 | 1982-02-02 | Pneumo Corporation | Dual cylinder linear servo motor |
| CA2003018C (en) * | 1988-11-18 | 1994-02-22 | Bernard Bouchez | Landing gear turning device |
| US5242131A (en) * | 1992-04-08 | 1993-09-07 | The Boeing Company | Steerable landing gear |
| CN101870357A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Nose wheel steering control mechanism of semi-annular actuating cylinder |
| CN101870358A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Toggle type nose wheel steering mechanism and work method |
| CN105564639A (en) * | 2014-10-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Dual-redundancy nose-wheel steering and shimmy-damping system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334960A (en) * | 2018-11-29 | 2019-02-15 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of rotation pressure supply device and the undercarriage with it |
| CN109334960B (en) * | 2018-11-29 | 2021-10-01 | 中国航空工业集团公司沈阳飞机设计研究所 | Rotary pressure supply device and aircraft landing gear with same |
| CN109850132A (en) * | 2018-12-07 | 2019-06-07 | 中国航空工业集团公司成都飞机设计研究所 | A kind of detachable undercarriage contracting leg mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108216599B (en) | 2021-04-20 |
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