CN206968967U - A kind of undercarriage draw off gear - Google Patents
A kind of undercarriage draw off gear Download PDFInfo
- Publication number
- CN206968967U CN206968967U CN201720669528.7U CN201720669528U CN206968967U CN 206968967 U CN206968967 U CN 206968967U CN 201720669528 U CN201720669528 U CN 201720669528U CN 206968967 U CN206968967 U CN 206968967U
- Authority
- CN
- China
- Prior art keywords
- folding
- unfolding
- application cylinder
- piston
- undercarriage
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of undercarriage draw off gear, it is related to undercarriage folding and unfolding technical field, folding and unfolding application cylinder upper end is provided with application cylinder mounting seat, the folding and unfolding application cylinder left side wall is provided with oil filler plug, and folding and unfolding application cylinder is internally provided with piston, and extension and contraction control valve is provided with piston, piston underside is provided with telescopic shaft, and telescopic shaft and activity axis connection, the folding and unfolding application cylinder bottom is provided with oil sealing layer.The device is supported using hydraulic shock strut to wheel, and the folding and unfolding of hydraulic shock strut is controlled by folding and unfolding application cylinder, piston in folding and unfolding application cylinder is to control fluid circulation to control piston to lift by extension and contraction control valve, the device can control the lifting of piston according to the change of the pressure from hydraulic shock strut in real time, and then drive telescopic shaft that the support angle of hydraulic shock strut is adjusted, so that hydraulic shock strut is in maximum support angle, so as to ensure safety of the undercarriage in folding and unfolding.
Description
Technical field
A kind of undercarriage draw off gear is the utility model is related to, belongs to undercarriage folding and unfolding technical field.
Background technology
Undercarriage is that aircraft bottom is used to take off landing or aircraft is supported during ground taxi and is used for ground moving
Accessories apparatus, undercarriage is a kind of unique part for supporting whole airplane, therefore it is the inseparable scarce some of aircraft, is not had
It, aircraft just after taking off, can not can withdraw undercarriage in ground moving depending on flying quality, and control undercarriage is received
The device put is exactly undercarriage control device, undercarriage control device typically using hydraulic pressure as normal folding and unfolding power source, with cold air,
Electric power needs the take-off and landing state with different aircrafts and changed to ensure as back-up power source, the undercarriage of aircraft
The support strength of undercarriage, traditional undercarriage often because regulation is improper, cause undercarriage to change branch in time
Support angle degree is excessive so as to cause the pressure that undercarriage is born, and have impact on the service life of undercarriage
Utility model content
In view of the above-mentioned problems, the technical problems to be solved in the utility model is to provide a kind of undercarriage draw off gear.
A kind of undercarriage draw off gear of the present utility model, it includes hydraulic shock strut, pillar mounting seat, accepted
Seat, installation watt support shaft, wheel installation watt, wheel, gearing folding rod, rhombus link, link mounting hole, movable axis, receipts
Put application cylinder, application cylinder mounting seat, oil filler plug, piston, extension and contraction control valve, telescopic shaft and oil sealing layer, the hydraulic shock strut
Upper end is provided with pillar mounting seat, and the hydraulic shock strut lower end is provided with stacker, installation watt is provided with the downside of stacker
Support shaft, install and wheel installation watt is provided with watt support shaft, wheel installation watt downside is provided with wheel, the stacker right-hand member
Gearing folding rod is provided with, and stacker is connected by interlocking folding rod with rhombus link, rhombus link right-hand member is provided with
Link mounting hole, the rhombus link inner side is provided with movable axis, and movable axis is connected with folding and unfolding application cylinder, folding and unfolding effect
Cylinder upper end is provided with application cylinder mounting seat, and the folding and unfolding application cylinder left side wall is provided with oil filler plug, and is set inside folding and unfolding application cylinder
Piston is equipped with, extension and contraction control valve is provided with piston, piston underside is provided with telescopic shaft, and telescopic shaft and activity axis connection, institute
State folding and unfolding application cylinder bottom and be provided with oil sealing layer.
Preferably, being provided with seal washer on described hydraulic shock strut, the setting of seal washer can strengthen liquid
The sealing property on shock strut is pressed, prevents the hydraulic oil in hydraulic shock strut from being leaked outside in the state of overweight or weightlessness.
Preferably, described wheel installation watt is set by three-dimensional support and installation watt support axis connection, three-dimensional support
The stability of wheel installation watt can be strengthened by being equipped with, and preventing wheel from installing, watt stress is excessive to deform.
Preferably, described folding and unfolding application cylinder lower end is provided with dust cover, the setting of dust cover can prevent the external world
Dust is entered in folding and unfolding application cylinder by folding and unfolding application cylinder and telescopic shaft junction, pollutes its internal environment.
Preferably, being provided with recuperation valve on described piston, recuperation valve can voluntarily be beaten when amount of piston displacement is excessive
Open, the fluid circulation in extension and contraction control valve is compensated.
The beneficial effects of the utility model：The device is supported using hydraulic shock strut to wheel, and passes through folding and unfolding
Application cylinder controls the folding and unfolding of hydraulic shock strut, and the piston in folding and unfolding application cylinder is to control fluid to circulate by extension and contraction control valve
Lifted to control piston, the device can control the liter of piston according to the change of the pressure from hydraulic shock strut in real time
Drop, and then drive telescopic shaft that the support angle of hydraulic shock strut is adjusted so that hydraulic shock strut is in optimal
Support angle, so as to ensure safety of the undercarriage in folding and unfolding.
Brief description of the drawings
For ease of explanation, the utility model is described in detail by following specific implementations and accompanying drawing.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is folding and unfolding application cylinder structural representation of the present utility model.
1- hydraulic shock struts；2- pillar mounting seats；3- stackers；4- installs watt support shaft；The installation watt of 5- wheels；6- machines
Wheel；7- interlocks folding rod；8- rhombus links；9- link mounting holes；10- movable axis；11- folding and unfolding application cylinders；12- application cylinders
Mounting seat；13- oil filler plugs；14- pistons；15- extension and contraction control valves；16- telescopic shafts；17- oil sealing layers.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As depicted in figs. 1 and 2, present embodiment uses following technical scheme：It includes hydraulic shock strut 1, branch
Post mounting seat 2, stacker 3, installation watt support shaft 4, wheel installation watt 5, wheel 6, gearing folding rod 7, rhombus link 8, company
Connect frame mounting hole 9, movable axis 10, folding and unfolding application cylinder 11, application cylinder mounting seat 12, oil filler plug 13, piston 14, extension and contraction control valve
15th, telescopic shaft 16 and oil sealing layer 17, the upper end of hydraulic shock strut 1 are provided with pillar mounting seat 2, the hydraulic shock strut
1 lower end is provided with stacker 3, and the downside of stacker 3 is provided with installation watt support shaft 4, installs and wheel peace is provided with watt support shaft 4
Dress watt 5, the downside of wheel installation watt 5 are provided with wheel 6, and the right-hand member of stacker 3, which is provided with, interlocks folding rod 7, and stacker 3 is logical
Cross gearing folding rod 7 to be connected with rhombus link 8, the right-hand member of rhombus link 8 is provided with link mounting hole 9, and the rhombus connects
Connect the inner side of frame 8 and be provided with movable axis 10, and movable axis 10 is connected with folding and unfolding application cylinder 11, the upper end of folding and unfolding application cylinder 11 is provided with work
With cylinder mounting seat 12, the left side wall of folding and unfolding application cylinder 11 is provided with oil filler plug 13, and folding and unfolding application cylinder 11 is internally provided with work
14 are filled in, extension and contraction control valve 15 is provided with piston 14, the downside of piston 14 is provided with telescopic shaft 16, and telescopic shaft 16 and movable axis 10
Connection, the bottom of folding and unfolding application cylinder 11 is provided with oil sealing layer 17.
Wherein, seal washer is provided with described hydraulic shock strut 1, the setting of seal washer can strengthen hydraulic pressure and subtract
The sealing property on pillar 1 is shaken, prevents the hydraulic oil in hydraulic shock strut 1 from being leaked outside in the state of overweight or weightlessness；It is described
Wheel installation watts 5 be connected by three-dimensional support with installation watt support shaft 4, being provided with of three-dimensional support can strengthen wheel and install
Watts 5 stability, prevent from wheel installation watt 5 stress be excessive to deform；The described lower end of folding and unfolding application cylinder 11 is provided with dust-proof
Cover, the setting of dust cover can prevent the dust in the external world from being acted on by folding and unfolding application cylinder 11 and the junction of telescopic shaft 16 into folding and unfolding
In cylinder 11, its internal environment is polluted；Recuperation valve is provided with described piston 14, recuperation valve can be excessive in the displacement of piston 14
When opens voluntarily, the fluid circulation in extension and contraction control valve 15 is compensated.
Hydraulic shock strut 1 is arranged on fuselage by the utility model when in use, by pillar mounting seat 2, passes through company
Connect frame mounting hole 9 rhombus link 8 is arranged on fuselage, be arranged on fuselage by application cylinder mounting seat 12, then completed
The integral installation of the device is fixed, and the wheel installation watt 5 of its lower end and wheel 6 is supported by hydraulic shock strut 1, due to liquid
The stacker 3 of pressure shock strut 1 lower end is flexibly connected by interlocking folding rod 7 and the cooperation of rhombus link 8 with folding and unfolding application cylinder 11
Connect, control the folding and unfolding of hydraulic shock strut 1 by folding and unfolding application cylinder 11, the piston 14 in folding and unfolding application cylinder 11 is by flexible
Control valve 15 controls what fluid circulation lifted to control piston 14, and the device can be in real time according to from hydraulic shock strut 1
Pressure changes to control the lifting of piston 14, and then drives telescopic shaft 16 to carry out the support angle progress to hydraulic shock strut 1
Regulation so that hydraulic shock strut 1 is in maximum support angle.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (5)
- A kind of 1. undercarriage draw off gear, it is characterised in that：It include hydraulic shock strut (1), pillar mounting seat (2), Stacker (3), installation watt support shaft (4), wheel installation watt (5), wheel (6), interlock folding rod (7), rhombus link (8), Link mounting hole (9), movable axis (10), folding and unfolding application cylinder (11), application cylinder mounting seat (12), oil filler plug (13), piston (14), extension and contraction control valve (15), telescopic shaft (16) and oil sealing layer (17), hydraulic shock strut (1) upper end are provided with pillar Mounting seat (2), hydraulic shock strut (1) lower end are provided with stacker (3), and installation watt branch is provided with the downside of stacker (3) Axle (4) is supportted, wheel installation watt (5) is provided with installation watt support shaft (4), wheel (6) is installed on the downside of wheel installation watt (5), Stacker (3) right-hand member, which is provided with, interlocks folding rod (7), and stacker (3) is by interlocking folding rod (7) and rhombus link (8) connect, rhombus link (8) right-hand member is provided with link mounting hole (9), and work is provided with the inside of the rhombus link (8) Moving axis (10), and movable axis (10) is connected with folding and unfolding application cylinder (11), folding and unfolding application cylinder (11) upper end is provided with application cylinder installation Seat (12), folding and unfolding application cylinder (11) left side wall is provided with oil filler plug (13), and folding and unfolding application cylinder (11) is internally provided with work Fill in (14), extension and contraction control valve (15) is provided with piston (14), telescopic shaft (16), and telescopic shaft are provided with the downside of piston (14) (16) it is connected with movable axis (10), folding and unfolding application cylinder (11) bottom is provided with oil sealing layer (17).
- A kind of 2. undercarriage draw off gear according to claim 1, it is characterised in that：Described hydraulic shock strut (1) seal washer is provided with.
- A kind of 3. undercarriage draw off gear according to claim 1, it is characterised in that：Described wheel installation watt (5) it is connected by three-dimensional support with installation watt support shaft (4).
- A kind of 4. undercarriage draw off gear according to claim 1, it is characterised in that：Described folding and unfolding application cylinder (11) lower end is provided with dust cover.
- A kind of 5. undercarriage draw off gear according to claim 1, it is characterised in that：Set on described piston (14) It is equipped with recuperation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669528.7U CN206968967U (en) | 2017-06-09 | 2017-06-09 | A kind of undercarriage draw off gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669528.7U CN206968967U (en) | 2017-06-09 | 2017-06-09 | A kind of undercarriage draw off gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206968967U true CN206968967U (en) | 2018-02-06 |
Family
ID=61408306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720669528.7U Expired - Fee Related CN206968967U (en) | 2017-06-09 | 2017-06-09 | A kind of undercarriage draw off gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206968967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470034A (en) * | 2020-04-29 | 2020-07-31 | 江苏工程职业技术学院 | Linkage mechanism of follow-up switch of landing gear cabin door of airplane |
-
2017
- 2017-06-09 CN CN201720669528.7U patent/CN206968967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470034A (en) * | 2020-04-29 | 2020-07-31 | 江苏工程职业技术学院 | Linkage mechanism of follow-up switch of landing gear cabin door of airplane |
| CN111470034B (en) * | 2020-04-29 | 2021-09-07 | 江苏工程职业技术学院 | Linkage mechanism of follow-up switch of landing gear cabin door of airplane |
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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 |
Granted publication date: 20180206 Termination date: 20180609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |