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CN107939896B8 - A kind of band friction rotation stop subtracts the buffer unit of pendulum function - Google Patents

A kind of band friction rotation stop subtracts the buffer unit of pendulum function Download PDF

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Publication number
CN107939896B8
CN107939896B8 CN201711171721.9A CN201711171721A CN107939896B8 CN 107939896 B8 CN107939896 B8 CN 107939896B8 CN 201711171721 A CN201711171721 A CN 201711171721A CN 107939896 B8 CN107939896 B8 CN 107939896B8
Authority
CN
China
Prior art keywords
flange
piston rod
inner cylinder
plunger
subtracts
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.)
Active
Application number
CN201711171721.9A
Other languages
Chinese (zh)
Other versions
CN107939896B (en
CN107939896A (en
Inventor
张成亮
黄立新
金军
张健全
慕建全
吴林
李志栋
邓晓山
张航舟
刘庞轮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Helicopter Research and Development Institute
Original Assignee
China Helicopter Research and Development Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Helicopter Research and Development Institute filed Critical China Helicopter Research and Development Institute
Priority to CN201711171721.9A priority Critical patent/CN107939896B8/en
Publication of CN107939896A publication Critical patent/CN107939896A/en
Publication of CN107939896B publication Critical patent/CN107939896B/en
Application granted granted Critical
Publication of CN107939896B8 publication Critical patent/CN107939896B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • 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 
    • B64C25/34—Alighting gear characterised by elements which contact the ground or similar surface  wheeled type, e.g. multi-wheeled bogies
    • 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
    • B64C25/505—Shimmy damping
    • 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
    • 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 
    • B64C2025/325—Alighting gear characterised by elements which contact the ground or similar surface  specially adapted for helicopters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/04—Friction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2232/00—Nature of movement
    • F16F2232/08—Linear

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Dampers (AREA)

Abstract

The invention discloses the buffer units that a kind of band friction rotation stop subtracts pendulum function, including outer cylinder, inner cylinder, piston rod, anti-torque arm；In inner cylinder hollow cavity, it is located above piston rod top end equipped with plunger；Oil circuit is equipped between piston rod and plunger, which makes piston rod by active force and when moving in inner cylinder hollow cavity, and plunger can be driven mobile with piston rod；It is equipped with the first flange around outer cylinder lower end, the first flange lower surface is equipped with friction plate；It is equipped with the second flange around inner cylinder, the second flange is located at immediately below the first flange, and there are gap X between the second flange and friction plate；There are gap Y between the top of inner cylinder outer surface and the top of outer tube inner chamber, and X < Y.The present invention can effectively subtract pendulum, and applicability is wide, can improve the reliability and safety of Aircraft landing gear system, and safeguard simple at low cost.
CN201711171721.9A 2017-11-22 2017-11-22 A kind of band friction rotation stop subtracts the buffer unit of pendulum function Active CN107939896B8 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711171721.9A CN107939896B8 (en) 2017-11-22 2017-11-22 A kind of band friction rotation stop subtracts the buffer unit of pendulum function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711171721.9A CN107939896B8 (en) 2017-11-22 2017-11-22 A kind of band friction rotation stop subtracts the buffer unit of pendulum function

Publications (3)

Publication Number Publication Date
CN107939896A CN107939896A (en) 2018-04-20
CN107939896B CN107939896B (en) 2019-06-25
CN107939896B8 true CN107939896B8 (en) 2019-08-23

Family

ID=61929763

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711171721.9A Active CN107939896B8 (en) 2017-11-22 2017-11-22 A kind of band friction rotation stop subtracts the buffer unit of pendulum function

Country Status (1)

Country Link
CN (1) CN107939896B8 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108639315A (en) * 2018-07-06 2018-10-12 安徽思源三轻智能制造有限公司 Undercarriage
CN109552603A (en) * 2018-12-01 2019-04-02 江苏鸿鹄无人机应用科技有限公司 A kind of unmanned plane landing and buffering device
CN109774926B (en) * 2019-01-22 2022-05-03 南京航空航天大学 Wheel and skid combined take-off and landing device of hypersonic vehicle
CN112407260B (en) * 2020-11-05 2022-08-12 北京空间机电研究所 A kind of pre-rotating light structure composite material front landing gear buffer
CN114750933B (en) * 2022-05-07 2022-10-28 中国航空工业集团公司沈阳飞机设计研究所 Miniaturized undercarriage retracting mechanism without damaging aircraft bearing structure

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB551971A (en) * 1942-02-25 1943-03-17 Automotive Prod Co Ltd Improvements in or relating to landing gear for aircraft
US2613649A (en) * 1948-10-22 1952-10-14 G G Bakewell Steering motor for airplane landing wheels
US2770832A (en) * 1953-02-11 1956-11-20 Houdaille Industries Inc Swivel wheel damper
US3430896A (en) * 1967-05-02 1969-03-04 United Aircraft Corp Shimmy damper
GB1416806A (en) * 1973-04-11 1975-12-10 Dowty Rotol Ltd Steerable undercarriages suitable for aircraft
CN101870358B (en) * 2010-06-23 2012-12-26 南京航空航天大学 Toggle type nose wheel steering mechanism and work method
CN201800917U (en) * 2010-09-30 2011-04-20 湖南山河科技股份有限公司 Anti-shimmy mechanism of landing wheel
CN102602534B (en) * 2012-04-05 2015-04-08 中航飞机起落架有限责任公司 Shimmy damping device for landing gear
CN103523210A (en) * 2012-07-06 2014-01-22 哈尔滨飞机工业集团有限责任公司 Friction shimmy damping device of nose landing gear
US9499261B2 (en) * 2015-01-20 2016-11-22 Goodrich Corporation Friction-based shimmy damper for landing gear
CN205554569U (en) * 2016-04-04 2016-09-07 蓝灿玉 Aerospace's undercarriage is exclusively used in

Also Published As

Publication number Publication date
CN107939896B (en) 2019-06-25
CN107939896A (en) 2018-04-20

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Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TA01 Transfer of patent application right

Effective date of registration: 20190611

Address after: 333001 Jingdezhen Aviation Road 6-8, Jiangxi Province

Applicant after: CHINA HELICOPTER RESEARCH AND DEVELOPMENT INSTITUTE

Address before: 410200 Airway of Wangcheng Economic Development Zone, Changsha City, Hunan Province

Applicant before: LANDING-GEAR ADVANCED MANUFACTURING Corp.

TA01 Transfer of patent application right
CI03 Correction of invention patent

Correction item: Patentee|Address|Agent

Correct: China Helicopter Research and Development Institute|333001, Jingdezhen, Jiangxi Airlines Road No. 6-8|Ma Qiang

False: AVIC Landing Gear Advanced Manufacturing Corp.|410200 Wangcheng Economic Development Zone, Hunan, Changsha|Ma Qiang|Zheng Junchao

Number: 26-01

Page: The title page

Volume: 35

Correction item: Patentee|Address|Agent

Correct: China Helicopter Research and Development Institute|333001, Jingdezhen, Jiangxi Airlines Road No. 6-8|Ma Qiang

False: AVIC Landing Gear Advanced Manufacturing Corp.|410200 Wangcheng Economic Development Zone, Hunan, Changsha|Ma Qiang|Zheng Junchao

Number: 26-01

Volume: 35

CI03 Correction of invention patent