CN108557060B - A kind of damping undercarriage - Google Patents
A kind of damping undercarriage Download PDFInfo
- Publication number
- CN108557060B CN108557060B CN201810403807.8A CN201810403807A CN108557060B CN 108557060 B CN108557060 B CN 108557060B CN 201810403807 A CN201810403807 A CN 201810403807A CN 108557060 B CN108557060 B CN 108557060B
- Authority
- CN
- China
- Prior art keywords
- damping
- connecting rod
- diameter
- cylindrical
- column
- 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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Classifications
-
- 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
- B64C25/58—Arrangements or adaptations of shock-absorbers or springs
- B64C25/62—Spring shock-absorbers; Springs
Abstract
A kind of damping undercarriage, belong to unmanned plane undercarriage field, including bracket, damping upper bracket, compressed spring, Shock-proof bolt, damping lower bracket, connecting rod A, connecting rod B and hydraulic push rod, the top coaxial cooperation of damping upper bracket is mounted on cylindrical shaft, Shock-proof bolt connects damping upper bracket and damping lower bracket, and the compressed spring being installed in damping upper bracket is passed through at the top of Shock-proof bolt, the one end connecting rod A is connected to damping upper bracket, the other end and the one end connecting rod B coaxial cooperation, also with hydraulic push rod front end coaxial cooperation, the rear end of hydraulic push rod and hydraulic push rod mounting post coaxial cooperation, the connecting rod B other end and connecting rod B mounting post coaxial cooperation.The invention comprehensively utilizes bracket, damping upper bracket, compressed spring, Shock-proof bolt, damping lower bracket, connecting rod A, connecting rod B and hydraulic push rod, under the premise of guaranteeing that system is simple, improves the damping performance of unmanned fixed-wing aircraft.
Description
Technical field
The present invention relates to a kind of undercarriage, specifically a kind of damping undercarriage belongs to unmanned plane and rises and falls
Frame field.
Background technique
UAV referred to as " unmanned plane ", is grasped using radio robot and the presetting apparatus provided for oneself
Vertical not manned aircraft, or fully or intermittently automatically operated by car-mounted computer.
Present invention is generally directed to unmanned fixed-wing aircraft, " fixed-wing " is exactly as its name suggests that wing immobilizes, by flowing through
The wind of wing provides lift.As the aircraft that we usually do, fixed-wing unmanned plane needs run-up when taking off, landing
When have to slide, but this kind of unmanned plane cruise duration is long, flight efficiency is high, load is big.
The undercarriage of unmanned fixed-wing aircraft is also its important a part, but its volume with respect to for passenger plane generally compared with
Small, too big using undercarriage of passenger plane volume, system is too complicated, it would be highly desirable to need one kind can effective damping, structure and very simple nothing
People's fixed-wing aircraft undercarriage.
So the present invention will provide a kind of damping undercarriage, to solve the above problems.
Summary of the invention
In view of the above deficiencies, the present invention provides a kind of damping undercarriages.
The present invention is achieved by the following technical solutions: a kind of damping undercarriage, including bracket, damping top branch
Frame, compressed spring, Shock-proof bolt, damping lower bracket, connecting rod A, connecting rod B and hydraulic push rod, it is characterised in that: the bracket is
By rectangle frame, hydraulic push rod mounting post, midfoot support block, Backside support block, column A, connecting rod B mounting post, front side supporting block, stand
What column B and cylindrical shaft formed, the rear outside of the rectangle frame protrudes one piece of rectangular block, is Backside support block, the rear side branch
Bracer lower weld section be that the bottom end column A, the column A of rectangle is installed with connecting rod B mounting post, on the inside of the rectangle frame
Rear positions protrude one piece of rectangular block, are midfoot support block, end is installed with hydraulic push rod mounting post, the front of the rectangle frame
One piece of rectangular block is protruded in outside, is front side supporting block, and the column B that section is rectangle, institute are installed on the downside of the front side supporting block
It states the lower part column B and cylindrical shaft is installed；The top coaxial cooperation of the damping upper bracket is mounted on cylindrical shaft, the damping
Bolt connects damping upper bracket and damping lower bracket, and passes through at the top of Shock-proof bolt and pacify in damping upper bracket
The compressed spring being filled with, the one end the connecting rod A are connected to damping upper bracket, the other end and the one end connecting rod B coaxial cooperation, also with
Hydraulic push rod front end coaxial cooperation, the rear end of the hydraulic push rod and hydraulic push rod mounting post coaxial cooperation, the connecting rod B
The other end and connecting rod B mounting post coaxial cooperation.
Preferably, the damping upper bracket is by cylinder hollow to plate, taper connection block, cylindrical projection, four-bladed vane, circle
What column through-hole A and connecting rod A connecting column formed, the cylinder hollow is mounted on taper connection block top to plate, and cylinder hollow is to plate
Top is through-hole, and two cylinder hollows are spaced to the centre of plate, and the size at interval is equal to the width of column B, the taper
Link block lower part is followed successively by top square end faces, four-bladed vane and lower part square end faces, and top square end faces are close to four
There is cylindrical projection in the position at angle, and the top square end faces and lower part square end faces are welded together by four-bladed vane, and ten
Space between top square end faces and lower part square end faces is divided into four pieces by letter stencil, installation compression inside every piece of region
Spring, the diameter of the compressed spring are greater than the diameter of cylindrical projection, and it is close that the cylindrical hole A is located at lower part square end faces
The position at four angles, the cylindrical projection with top square end faces close to four angles is corresponding, and the connecting rod A connecting column is welded in
The side of lower part square end faces.
Preferably, the Shock-proof bolt is by top cylindrical protrusion, baffle A, gasket A, main shaft, damping compressed spring, gear
What plate B, gasket B, threaded post and nut formed, the top cylindrical protrusion, baffle A, main shaft, baffle B and threaded post are integrated,
The top cylindrical protrusion is located at main shaft top, and the baffle A is located at top cylindrical protrusion and main shaft connecting position, the gasket
A can be dismantled, and close to the lower part baffle A, the baffle B is located at main shaft and threaded post connecting position, and the gasket B can be dismantled,
Close on the downside of baffle B, the nut is threadedly engaged with threaded post, and the damping compressed spring is mounted on main spindle's.
Preferably, the damping lower bracket is made of plate, cylindrical hole B, aircraft wheel support and aircraft wheel, institute
The position for stating four angles of plate is respectively equipped with cylindrical hole B, and when installation and cylindrical hole A is corresponding, and the aircraft wheel support is solid
Plate two sides are scheduled on, two aircraft wheel pedestal lower ends are installed with aircraft wheel.
Preferably, the diameter of the top cylindrical protrusion of the Shock-proof bolt is less than the diameter of cylindrical hole A, cylindrical hole A
Diameter and cylindrical hole B diameter it is equal, the diameter of baffle A is less than the diameter of cylindrical hole A, and gasket A is open type gasket,
Diameter is greater than the diameter of cylindrical hole A, and baffle B is less than the diameter of cylindrical hole B, and gasket B is closed type gasket, and diameter is greater than circle
The diameter of column through-hole B, screw thread column diameter are less than the diameter of cylindrical hole B.
Preferably, the both ends of the compressed spring are set to cylindrical projection and top cylindrical protrusion, damping compressed spring respectively
It is set to above main shaft.
The invention has the beneficial effect that
1. the invention uses Shock-proof bolt, structure is simple, and the vibration and load that unmanned plane is subject in landing pass through damping
Damping compressed spring on bolt carries out first order damping, and vibration when rising and falling is effectively reduced.
2. the invention also uses second level damping, i.e. damping spring described in structure, after Shock-proof bolt is compressed, upwards
Movement, and then compression shock absorption spring, it is ensured that shake and be preferably minimized in controllable range.
3. the invention comprehensively utilizes bracket, damping upper bracket, compressed spring, Shock-proof bolt, damping lower bracket, connecting rod
A, connecting rod B and hydraulic push rod improve the damping performance of unmanned fixed-wing aircraft under the premise of guaranteeing that system is simple.
Detailed description of the invention
Attached drawing 1 is using state structure diagram of the invention；
Attached drawing 2 is non-working state structure schematic diagram of the invention；
Attached drawing 3 is supporting structure schematic diagram of the invention；
Attached drawing 4 is damping frame superstructure schematic diagram of the invention；
Attached drawing 5 is Shock-proof bolt structural schematic diagram of the invention；
Attached drawing 6 is damping lower frame construction schematic diagram of the invention；
Attached drawing 7 is shock-damping structure partial schematic diagram of the invention.
In figure, 1, bracket, 101, rectangle frame, 102, hydraulic push rod mounting post, 103, midfoot support block, 104, Backside support
Block, 105, column A, 106, connecting rod B mounting post, 107, front side supporting block, 108, column B, 109, cylindrical shaft, 2, damping top branch
Frame, 201, cylinder hollow to plate, 202, taper connection block, 203, cylindrical projection, 204, four-bladed vane, 205, cylindrical hole A, 206,
Connecting rod A connecting column, 3, compressed spring, 4, Shock-proof bolt, 401, top cylindrical protrusion, 402, baffle A, 403, gasket A, 404, master
Axis, 405, damping compressed spring, 406, baffle B, 407, gasket B, 408, threaded post, 409, nut, 5, damping lower bracket,
501, plate, 502, cylindrical hole B, 503, aircraft wheel support, 504, aircraft wheel, 6, connecting rod A, 7, connecting rod B, 8, hydraulic push rod.
Specific embodiment
Below in conjunction with the attached drawing in the present invention, the technical solution in the present invention is clearly and completely described, is shown
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
It please refers to shown in Fig. 1-7, a kind of damping undercarriage, including bracket 1, damping upper bracket 2, compressed spring
3, Shock-proof bolt 4, damping lower bracket 5, connecting rod A6, connecting rod B7 and hydraulic push rod 8, it is characterised in that: the bracket 1 is by square
Shape frame 101, hydraulic push rod mounting post 102, midfoot support block 103, Backside support block 104, column A105, connecting rod B mounting post
106, front side supporting block 107, column B108 and cylindrical shaft 109 form, and the rear outside of the rectangle frame 101 protrudes one piece of square
Shape block, be Backside support block 104,104 lower weld of Backside support block section be rectangle column A105, the column
The bottom end A105 is installed with connecting rod B mounting post 106, and the 101 inside back position protruding of rectangle frame, one piece of rectangular block is middle part branch
Bracer 103, end are installed with hydraulic push rod mounting post 102, and the front outsides of the rectangle frame 101 protrude one piece of rectangular block, are
Front side supporting block 107 is installed on the downside of the front side supporting block 107 under the column B108, the column B108 that section is rectangle
Portion is installed with cylindrical shaft 109；The top coaxial cooperation of the damping upper bracket 2 is mounted on cylindrical shaft 109, the damping spiral shell
Bolt 4 connects damping upper bracket 2 and damping lower bracket 5, and damping upper bracket 2 is passed through at the top of Shock-proof bolt 4
In the compressed spring 3 that is installed with, the one end the connecting rod A6 is connected to damping upper bracket 2, and the other end and the one end connecting rod B7 are coaxial
Cooperation, also with 8 front end coaxial cooperation of hydraulic push rod, the rear end of the hydraulic push rod 8 and hydraulic push rod mounting post 102 are coaxial
Cooperation, the connecting rod B7 other end and 106 coaxial cooperation of connecting rod B mounting post.
Preferably, the damping upper bracket 2 is by cylinder hollow to plate 201, taper connection block 202, cylindrical projection
203, four-bladed vane 204, cylindrical hole A205 and connecting rod A connecting column 206 form, and the cylinder hollow is mounted on cone to plate 201
202 top of shape link block, cylinder hollow are through-hole to 201 top of plate, and two cylinder hollows are spaced to the centre of plate 201,
The size at interval is equal to the width of column B108, and 202 lower part of taper connection block is followed successively by top square end faces, four-bladed vane
204 and lower part square end faces, top square end faces have cylindrical projection 203 close to the position at four angles, and the top is square
Shape end face and lower part square end faces are welded together by four-bladed vane 204, and four-bladed vane 204 is by top square end faces and lower part
Space between square end faces is divided into four pieces, installs compressed spring 3, the diameter of the compressed spring 3 inside every piece of region
Greater than the diameter of cylindrical projection 203, the cylindrical hole A205 is located at lower part square end faces close to the position at four angles, and upper
Cylindrical projection 203 of portion's square end faces close to four angles is corresponding, and the connecting rod A connecting column 206 is welded in lower part square
The side of end face.
Preferably, the Shock-proof bolt 4 is by top cylindrical protrusion 401, baffle A402, gasket A403, main shaft 404, subtracts
Shake what compressed spring 405, baffle B406, gasket B407, threaded post 408 and nut 409 formed, the top cylindrical protrusion 401,
Baffle A402, main shaft 404, baffle B406 and threaded post 408 are integrated, and the top cylindrical protrusion 401 is located on main shaft 404
Portion, the baffle A403 are located at top cylindrical protrusion 401 and 404 connecting position of main shaft, and the gasket A403 can be dismantled, close to
The lower part baffle A402, the baffle B406 are located at 408 connecting position of main shaft 404 and threaded post, and the gasket B407 can be dismantled,
Close on the downside of baffle B406, the nut 409 is threadedly engaged with threaded post 408, and the damping compressed spring 405 is mounted on main shaft
Position.
Preferably, the damping lower bracket 5 is by plate 501, cylindrical hole B502, aircraft wheel support 503 and aircraft
504 composition of wheel, the position at four angles of the plate 501 is respectively equipped with cylindrical hole B502, when installation and cylindrical hole
A205 is corresponding, and the aircraft wheel support 503 is fixed on 501 two sides of plate, and two 503 lower ends of aircraft wheel support are installed with aircraft wheel
504。
Preferably, the diameter of the top cylindrical protrusion 401 of the Shock-proof bolt 4 is less than the diameter of cylindrical hole A205, circle
The diameter of column through-hole A205 and the diameter of cylindrical hole B502 are equal, and the diameter of baffle A402 is straight less than cylindrical hole A205
Diameter, gasket A403 are open type gasket, and diameter is greater than the diameter of cylindrical hole A205, and baffle B406 is less than cylindrical hole B502's
Diameter, gasket B406 are closed type gasket, and diameter is greater than the diameter of cylindrical hole B, and 408 diameter of threaded post is less than cylindrical hole
The diameter of B502.
Preferably, the both ends of the compressed spring 3 are set to cylindrical projection 203 and top cylindrical protrusion 401, damping pressure respectively
Contracting spring 405 is set to above main shaft 404.
Working principle: when unmanned plane landing when, UAV system control hydraulic push rod 8 release, and then drive connecting rod A6 and
Connecting rod B7 movement, is unfolded undercarriage, such as Figure of description 1；After unmanned plane takes off, UAV system controls hydraulic thrust
Bar 8 is withdrawn, and then drives connecting rod A6 and connecting rod B7 movement, withdraws undercarriage, such as Figure of description 2.
For the ordinary skill in the art, introduction according to the present invention, do not depart from the principle of the present invention with
In the case where spirit, changes, modifications that embodiment is carried out, replacement and variant still fall within protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of damping undercarriage, including bracket, damping upper bracket, compressed spring, Shock-proof bolt, damping lower part branch
Frame, connecting rod A, connecting rod B and hydraulic push rod, it is characterised in that: the bracket is by rectangle frame, hydraulic push rod mounting post, middle part branch
What bracer, Backside support block, column A, connecting rod B mounting post, front side supporting block, column B and cylindrical shaft formed, the rectangle frame
Rear outside protrude one piece of rectangular block, be Backside support block, the Backside support block lower weld section be rectangle column
The bottom end A, the column A is installed with connecting rod B mounting post, and described one piece of rectangular block of rectangle frame inside back position protruding is middle part
Supporting block, end are installed with hydraulic push rod mounting post, and the front outsides of the rectangle frame protrude one piece of rectangular block, support for front side
Block, the front side supporting block downside are installed with the lower part column B, the column B that section is rectangle and are installed with cylindrical shaft；It is described to subtract
The top coaxial cooperation of shake upper bracket is mounted on cylindrical shaft, and the Shock-proof bolt is by damping upper bracket and damping lower part branch
Frame connects, and the compressed spring being installed in damping upper bracket is passed through at the top of Shock-proof bolt, and the one end the connecting rod A connects
Then damping upper bracket, the other end and the one end connecting rod B coaxial cooperation, also with hydraulic push rod front end coaxial cooperation, the liquid
Press rear end and the hydraulic push rod mounting post coaxial cooperation of push rod, the connecting rod B other end and connecting rod B mounting post coaxial cooperation.
2. a kind of damping undercarriage as described in claim 1, it is characterised in that: the damping upper bracket is by cylinder
It is hollow to plate, taper connection block, cylindrical projection, four-bladed vane, cylindrical hole A and connecting rod A connecting column composition, the cylinder hollow
Taper connection block top is mounted on to plate, cylinder hollow is through-hole to plate top, two cylinder hollows to the centre of plate there are
Size every, interval is equal to the width of column B, taper connection block lower part be followed successively by top square end faces, four-bladed vane and
Lower part square end faces, top square end faces have a cylindrical projection close to the position at four angles, the top square end faces and
Lower part square end faces are welded together by four-bladed vane, and four-bladed vane will be between top square end faces and lower part square end faces
Space be divided into four pieces, compressed spring is installed, the diameter of the compressed spring is greater than the straight of cylindrical projection inside every piece of region
Diameter, the cylindrical hole A are located at lower part square end faces close to the position at four angles, with top square end faces close to four angles
Cylindrical projection it is corresponding, the connecting rod A connecting column is welded in the side of lower part square end faces.
3. a kind of damping undercarriage as claimed in claim 2, it is characterised in that: the Shock-proof bolt is by top cylindrical
What protrusion, baffle A, gasket A, main shaft, damping compressed spring, baffle B, gasket B, threaded post and nut formed, the top circle
Column protrusion, baffle A, main shaft, baffle B and threaded post are integrated, and the top cylindrical protrusion is located at main shaft top, the baffle A
Positioned at top cylindrical protrusion and main shaft connecting position, the gasket A can be dismantled, and close to the lower part baffle A, the baffle B is located at
Main shaft and threaded post connecting position, the gasket B can be dismantled, and close on the downside of baffle B, the nut is matched with screw thread male screw
It closes, the damping compressed spring is mounted on main spindle's.
4. a kind of damping undercarriage as claimed in claim 3, it is characterised in that: the damping lower bracket is by putting down
What plate, cylindrical hole B, aircraft wheel support and aircraft wheel formed, the position at four angles of the plate is respectively equipped with cylindrical hole
B, when installation and cylindrical hole A is corresponding, and the aircraft wheel support is fixed on plate two sides, and two aircraft wheel pedestal lower ends are installed with
Aircraft wheel.
5. a kind of damping undercarriage as claimed in claim 4, it is characterised in that: the top cylindrical of the Shock-proof bolt is convex
The diameter risen is less than the diameter of cylindrical hole A, and the diameter of cylindrical hole A and the diameter of cylindrical hole B are equal, the diameter of baffle A
Less than the diameter of cylindrical hole A, gasket A is open type gasket, and diameter is greater than the diameter of cylindrical hole A, and baffle B is logical less than cylinder
The diameter of hole B, gasket B are closed type gasket, and diameter is greater than the diameter of cylindrical hole B, and screw thread column diameter is less than cylindrical hole B's
Diameter.
6. a kind of damping undercarriage as claimed in claim 5, it is characterised in that: the both ends of the compressed spring cover respectively
To cylindrical projection and top cylindrical protrusion, damping compressed spring is set to above main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403807.8A CN108557060B (en) | 2018-04-28 | 2018-04-28 | A kind of damping undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403807.8A CN108557060B (en) | 2018-04-28 | 2018-04-28 | A kind of damping undercarriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108557060A CN108557060A (en) | 2018-09-21 |
| CN108557060B true CN108557060B (en) | 2019-03-12 |
Family
ID=63537220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810403807.8A Expired - Fee Related CN108557060B (en) | 2018-04-28 | 2018-04-28 | A kind of damping undercarriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108557060B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112550685B (en) * | 2020-12-24 | 2023-01-06 | 王允 | Emergency landing gear of airplane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1363124A (en) * | 1972-05-05 | 1974-08-14 | Automotive Prod Co Ltd | Telescopic struts |
| DE202013105380U1 (en) * | 2013-11-26 | 2014-01-10 | Industrieanlagen-Betriebsgesellschaft Mbh | Chassis for a light aircraft or an unmanned aerial vehicle and aircraft with such a chassis |
| CN204674823U (en) * | 2015-04-30 | 2015-09-30 | 湖北猎隼智能科技有限公司 | A kind of two-stage buffering automatic deploying and retracting alighting gear |
| CN206691357U (en) * | 2017-04-06 | 2017-12-01 | 天津飞悦航空零部件制造有限公司 | Durable type undercarriage |
| CN207225646U (en) * | 2017-09-12 | 2018-04-13 | 赵恺之 | A kind of type aircraft undercarriage |
-
2018
- 2018-04-28 CN CN201810403807.8A patent/CN108557060B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1363124A (en) * | 1972-05-05 | 1974-08-14 | Automotive Prod Co Ltd | Telescopic struts |
| DE202013105380U1 (en) * | 2013-11-26 | 2014-01-10 | Industrieanlagen-Betriebsgesellschaft Mbh | Chassis for a light aircraft or an unmanned aerial vehicle and aircraft with such a chassis |
| CN204674823U (en) * | 2015-04-30 | 2015-09-30 | 湖北猎隼智能科技有限公司 | A kind of two-stage buffering automatic deploying and retracting alighting gear |
| CN206691357U (en) * | 2017-04-06 | 2017-12-01 | 天津飞悦航空零部件制造有限公司 | Durable type undercarriage |
| CN207225646U (en) * | 2017-09-12 | 2018-04-13 | 赵恺之 | A kind of type aircraft undercarriage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108557060A (en) | 2018-09-21 |
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