CN207450230U - A kind of undercarriage cushioning device - Google Patents
A kind of undercarriage cushioning device Download PDFInfo
- Publication number
- CN207450230U CN207450230U CN201721273088.XU CN201721273088U CN207450230U CN 207450230 U CN207450230 U CN 207450230U CN 201721273088 U CN201721273088 U CN 201721273088U CN 207450230 U CN207450230 U CN 207450230U
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- China
- Prior art keywords
- piston
- telescopic rod
- bar
- fixed link
- rack
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Abstract
A kind of undercarriage cushioning device, including rack, there are two the racks, and yielding rubber spring is provided on the top inner wall of the piston；Supporting rod is provided with piston with the position that wheel fixed link is connected, one end of piston is provided with piston, lubricating pad is provided on the outside of piston, lubricating pad can also be used as a kind of guide pad, it can effectively prevent that piston can be crooked when driving on non-flat forms road surface for aircraft, telescopicing performance bad the problem of causing damping bad；Damping spring is wound on the outer wall of piston, yielding rubber spring is provided on the top inner wall of piston, because spring is extruded deformation, bigger elastic force is bigger, so when aircraft lands suddenly, spring is big due to energy storage, it can will not make connecting component junction hard collision there are one cushioning effect；Piston is internally provided with heat emission hole, disperses piston and the heat of wall friction generation in piston convenient for ventilation.
Description
Technical field
The utility model belongs to aircraft takeoffs and landings technical field of auxiliary equipment, and in particular to a kind of undercarriage cushioning device.
Background technology
Undercarriage is aircraft lower part for taking off landing or when ground (water surface) slides supports aircraft and for ground (water
Face) mobile accessories apparatus.Undercarriage is a kind of unique component for supporting whole airplane, therefore it is aircraft inseparable scarce one
Partly；Without it, aircraft just cannot be in ground moving.After taking off, undercarriage can be withdrawn depending on flying quality.It rises and falls
Rack device is the important component with load and maneuverability of aircraft, is responsible for during aircraft security landing extremely heavy
The mission wanted.Undercarriage is to take off, land, sliding race, ground moving and park necessary support system, is the master of aircraft
Want one of component, what the quality of performance was directly related to aircraft is used in safety.To adapt to take off, alighting run and ground
The needs that face is slided, the bottom of undercarriage are equipped with the wheel with pneumatic tire.In order to shorten distance of landing run, filled on wheel
There are brake or dead-man's device.Additionally include load pillar, damper, jack, front-wheel shimmy-damper and turn control
Mechanism etc..Wheel and damper are connected on body by load pillar, and the bump stroke in landing and sliding is passed to machine
Body.Front-wheel shimmy-damper is used to eliminate the shimmy of front-wheel in high speed slide.Nose wheel steering control mechanism can increase aircraft floor and turn
Curved flexibility.For the aircraft in snowfield and take-off and landing on ice, the wheel on undercarriage is replaced with sled.But it most of rises and falls
Frame is there are complicated, and traveling vibrations are larger on uneven road, aircraft landing moment damping effect is not good enough, buffering knot
The problem of structure fever is serious, therefore it is proposed that a kind of undercarriage cushioning device.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of undercarriage cushioning device
Complicated, traveling vibrations are larger on uneven road, aircraft landing moment damping effect is not good enough, buffer structure fever
The problem of serious.
To achieve the above object, the utility model provides following technical solution：A kind of undercarriage cushioning device, including machine
Frame, there are two the racks, and two racks are symmetrical arranged, and the top of the rack sets organic frame fixed link, the rack
Fixed link is connected between two racks, and telescopic rod outer bar, the telescopic rod outer bar are provided on the outside of the rack fixed link
To be cylindric, and the rack fixed link, through the telescopic rod outer bar, one end of the telescopic rod outer bar is provided with telescopic rod
Interior bar, the telescopic rod interior bar is cylindric, and the radius of telescopic rod outer bar is small described in radius ratio, and the telescopic rod interior bar can be with
Telescopic rod outer bar described in retraction, one end of the telescopic rod interior bar is provided with connecting rod, and the connecting rod laterally sets and runs through
One end of the telescopic rod interior bar, one end of the connecting rod are provided with collapsible rod, and there are two the collapsible rods, it is described
The both ends of connecting rod connect two collapsible rods respectively, and one end of the collapsible rod is provided with the supporting rod other end and the machine
Frame is connected, and one end of the supporting rod is provided with the wheel fixed link other end and is also connected with the rack, and the wheel is consolidated
Wheel is provided on the outside of fixed pole, and the wheel fixed link is through the wheel, the supporting rod and the wheel fixed link
The position of connection is provided with piston, and one end of the piston is provided with piston, profit is provided on the outside of the piston
Skidding, the lubricating pad are adhered on the port inner wall of piston, and damping spring is wound on the outer wall of the piston, described
Piston is internally provided with heat emission hole, and the heat emission hole is on piston, the top inner wall of the piston
It is provided with yielding rubber spring.
Preferably, the junction of the collapsible rod and supporting rod is also provided with the piston, the piston and institute
State the structures such as damping spring.
Preferably, there are four the heat emission holes, and four equidistant annular spreads of heat emission hole are in the inside of piston.
Preferably, there are four the damping springs, and four damping springs are correspondingly arranged in two supporting rods and two respectively
On a collapsible rod.
Preferably, the lubricating pad is cirque structure.
Compared with prior art, the beneficial effects of the utility model are：Supporting rod is set with the position that wheel fixed link is connected
Piston is equipped with, one end of piston is provided with piston, lubricating pad is provided on the outside of piston, lubricating pad can also be used as one
Kind guide pad, can effectively prevent that piston can be crooked when driving on non-flat forms road surface for aircraft, telescopicing performance is bad to cause damping
The problem of bad；Damping spring is wound on the outer wall of piston, yielding rubber spring is provided on the top inner wall of piston,
Because spring is extruded deformation, bigger elastic force is bigger, and when aircraft lands suddenly, spring is since energy storage is big, and there are one meetings
Cushioning effect will not make connecting component junction hard collision；Piston is internally provided with heat emission hole, is dispersed convenient for ventilation
The heat that piston is generated with wall friction in piston.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the connecting rod of the utility model, supporting bar structure schematic diagram；
Fig. 3 is the buffer piston structure schematic diagram of the utility model；
In figure：1- racks, 2- supporting rods, 3- collapsible rods, 4- connecting rods, 5- wheels fixed link, 6- wheels, 7- telescopic rods
Interior bar, 8- racks fixed link, 9- telescopic rods outer bar, 10- damping springs, 11- pistons, 12- pistons, 13- heat emission holes, 14-
Lubricating pad, 15- yielding rubber springs.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
It please refers to Fig.1, Fig. 2 and Fig. 3, the utility model provide a kind of undercarriage cushioning device technique scheme：One kind is risen and fallen
Frame damping device, including rack 1, there are two racks 1, and two racks 1 are symmetrical arranged, and the top of rack 1 sets organic frame to consolidate
Fixed pole 8, rack fixed link 8 are connected between two racks 1, and the outside of rack fixed link 8 is provided with telescopic rod outer bar 9, are stretched
Bar outer bar 9 is cylindric, and rack fixed link 8, through telescopic rod outer bar 9, one end of telescopic rod outer bar 9 is provided in telescopic rod
Bar 7, telescopic rod interior bar 7 are cylindric, and the radius of radius ratio telescopic rod outer bar 9 is small, and telescopic rod interior bar 7 can be with retraction telescopic rod
Outer bar 9, one end of telescopic rod interior bar 7 is provided with connecting rod 4, and connecting rod 4 is laterally set through one end of telescopic rod interior bar 7,
One end of connecting rod 4 is provided with collapsible rod 3, and there are two collapsible rods 3, the both ends of connecting rod 4 connect two respectively to roll over
Folded bar 3, one end of collapsible rod 3 are provided with 2 other end of supporting rod and are connected with rack 1, and one end of supporting rod 2 is provided with wheel
5 other end of fixed link is also connected with rack 1, and the outside of wheel fixed link 5 is provided with wheel 6, and wheel fixed link 5 runs through machine
Wheel 6, supporting rod 2 is provided with piston 12 with the position that wheel fixed link 5 is connected, and one end of piston 12 is provided with work
Plug 11, the outside of piston 11 is provided with lubricating pad 14, and lubricating pad 14 is adhered on the port inner wall of piston 12, piston 11
Damping spring 10 is wound on outer wall, piston 12 is internally provided with heat emission hole 13, and heat emission hole 13 runs through piston
12, yielding rubber spring 15 is provided on the top inner wall of piston 12.
In order to make the effect of damping, buffering more preferable, in the present embodiment, it is preferred that collapsible rod 3 and the connection of supporting rod 2
Place is also provided with the structures such as piston 12, piston 11 and damping spring 10.
In order to facilitate ventilation and heat, make that during 11 friction piston 12 inner wall of shell of piston very big heat, this implementation will not be generated
In example, it is preferred that there are four heat emission holes 13, and four 13 equidistant annular spreads of heat emission hole are in the inside of piston 12.
In order to more preferably reach damping effect, and aircraft will not generate very big vibrations, this implementation in non-flat forms road traveling
In example, it is preferred that there are four damping springs 10, and four damping springs 10 are correspondingly arranged in two supporting rods 2 and two respectively
On collapsible rod 3.
In order to extend the service life of piston 11, and telescopic effect is more preferable, in the present embodiment, it is preferred that lubricating pad 14 is
Cirque structure.
The operation principle and process for using of the utility model：When taking off, 7 retraction telescopic rod outer bar 9 of telescopic rod interior bar
Inside folds collapsible rod 3, and wheel fixed link 5 drives wheel 6 to rise, during landing, on the contrary；
On the road surface of non-flat forms when driving, piston 11 can constantly stretch aircraft in the inside of piston 12, can delay
Most of vibrations are washed out, aircraft is dropping to ground in a flash, and piston 11 can stretch into inside piston 12, until piston
11 one end encounters and squeezes yielding rubber spring 15, and the damping spring 10 on the outer wall of piston 11 can also be compressed always, and three
The combination of person, can reach preferable buffering effect, and the inside of piston 12 disperses piston there are four heat emission hole 13 convenient for ventilation
11 heat with being generated in piston 12 during wall friction is unlikely to heated piston 12 and deforms, influences buffering effect.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of undercarriage cushioning device, including rack (1), it is characterised in that：There are two the racks (1), and two racks
(1) it is symmetrical arranged, the top of the rack (1) sets organic frame fixed link (8), and the rack fixed link (8) is connected to two
Between rack (1), telescopic rod outer bar (9) is provided on the outside of the rack fixed link (8), the telescopic rod outer bar (9) is circle
Column, and the rack fixed link (8), through the telescopic rod outer bar (9), one end of the telescopic rod outer bar (9), which is provided with, stretches
Contracting bar interior bar (7), the telescopic rod interior bar (7) are cylindric, and the radius of telescopic rod outer bar (9) is small and described described in radius ratio
Telescopic rod interior bar (7) can be provided with connecting rod with telescopic rod outer bar (9) described in retraction, one end of the telescopic rod interior bar (7)
(4), and the connecting rod (4) is laterally set through one end of the telescopic rod interior bar (7), and one end of the connecting rod (4) is set
Be equipped with collapsible rod (3), and there are two the collapsible rods (3), the both ends of the connecting rod (4) connect respectively two it is foldable
Bar (3), one end of the collapsible rod (3) are provided with supporting rod (2) other end and are connected with the rack (1), the support
One end of bar (2) is provided with wheel fixed link (5) other end and is also connected with the rack (1), the wheel fixed link (5)
Outside is provided with wheel (6), and the wheel fixed link (5) is through the wheel (6), the supporting rod (2) and the wheel
The position of fixed link (5) connection is provided with piston (12), and one end of the piston (12) is provided with piston (11), institute
It states and lubricating pad (14) is provided on the outside of piston (11), the lubricating pad (14) is adhered to the port inner wall of piston (12)
On, damping spring (10) is wound on the outer wall of the piston (11), the piston (12) is internally provided with heat emission hole
(13), and the heat emission hole (13) is provided with buffering on piston (12), the top inner wall of the piston (12)
Rubber spring (15).
2. a kind of undercarriage cushioning device according to claim 1, it is characterised in that：The collapsible rod (3) and support
The junction of bar (2) is also provided with the structures such as the piston (12), the piston (11) and the damping spring (10).
3. a kind of undercarriage cushioning device according to claim 1, it is characterised in that：There are four the heat emission holes (13),
And four equidistant annular spreads of heat emission hole (13) are in the inside of piston (12).
4. a kind of undercarriage cushioning device according to claim 1, it is characterised in that：The damping spring (10) has four
It is a, and four damping springs (10) are correspondingly arranged in respectively on two supporting rods (2) and two collapsible rods (3).
5. a kind of undercarriage cushioning device according to claim 1, it is characterised in that：The lubricating pad (14) is circular ring shape
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721273088.XU CN207450230U (en) | 2017-09-30 | 2017-09-30 | A kind of undercarriage cushioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721273088.XU CN207450230U (en) | 2017-09-30 | 2017-09-30 | A kind of undercarriage cushioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207450230U true CN207450230U (en) | 2018-06-05 |
Family
ID=62250051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721273088.XU Expired - Fee Related CN207450230U (en) | 2017-09-30 | 2017-09-30 | A kind of undercarriage cushioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207450230U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131847A (en) * | 2018-07-11 | 2019-01-04 | 苏州频聿精密机械有限公司 | A kind of undercarriage of simple and reliable formula |
| CN113148159A (en) * | 2021-04-27 | 2021-07-23 | 桂林天经地纬遥感信息技术有限公司 | Unmanned aerial vehicle takes photo by plane |
| CN113443130A (en) * | 2021-06-30 | 2021-09-28 | 高鸿飞 | Front shock-absorbing undercarriage device for airplane |
| CN113775684A (en) * | 2021-10-05 | 2021-12-10 | 哈尔滨理工大学 | Spring damping type soft landing buffer device |
-
2017
- 2017-09-30 CN CN201721273088.XU patent/CN207450230U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131847A (en) * | 2018-07-11 | 2019-01-04 | 苏州频聿精密机械有限公司 | A kind of undercarriage of simple and reliable formula |
| CN113148159A (en) * | 2021-04-27 | 2021-07-23 | 桂林天经地纬遥感信息技术有限公司 | Unmanned aerial vehicle takes photo by plane |
| CN113443130A (en) * | 2021-06-30 | 2021-09-28 | 高鸿飞 | Front shock-absorbing undercarriage device for airplane |
| CN113775684A (en) * | 2021-10-05 | 2021-12-10 | 哈尔滨理工大学 | Spring damping type soft landing buffer device |
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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: 20180605 Termination date: 20200930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |