BR112017001742A2 - atuador em uma empilhadeira tendo um mastro extensível - Google Patents

atuador em uma empilhadeira tendo um mastro extensível

Info

Publication number
BR112017001742A2
BR112017001742A2 BR112017001742A BR112017001742A BR112017001742A2 BR 112017001742 A2 BR112017001742 A2 BR 112017001742A2 BR 112017001742 A BR112017001742 A BR 112017001742A BR 112017001742 A BR112017001742 A BR 112017001742A BR 112017001742 A2 BR112017001742 A2 BR 112017001742A2
Authority
BR
Brazil
Prior art keywords
frame
cylinder
piston
seal
plunger
Prior art date
Application number
BR112017001742A
Other languages
English (en)
Inventor
Kremer Jason
A Gilliland Kevin
Wente Lee
Okroy Martin
Original Assignee
Crown Equip Corp
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 Crown Equip Corp filed Critical Crown Equip Corp
Publication of BR112017001742A2 publication Critical patent/BR112017001742A2/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1457—Piston rods
    • F15B15/1461—Piston rod sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/227—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having an auxiliary cushioning piston within the main piston or the cylinder end face
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
    • F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Actuator (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

um atuador pode compreender: estrutura de cilindro, estrutura de êmbolo e uma vedação de amortecimento. a estrutura de cilindro pode compreender um tubo do cilindro, uma base do cilindro e uma tampa do cilindro. a estrutura de êmbolo é montada de forma deslizante dentro de um furo da estrutura de cilindro e define com a estrutura de cilindro uma fenda entre eles. a estrutura de êmbolo pode compreender estrutura de passagem de fluido para definir um trajeto para fluido se mover internamente através da estrutura de êmbolo. o trajeto pode comunicar com uma saída em uma parede lateral da estrutura de êmbolo. a vedação de amortecimento pode ser localizada entre a estrutura de êmbolo e a estrutura de cilindro e engatar a estrutura de êmbolo e a tampa do cilindro durante extensão da estrutura de êmbolo de modo que a vedação isola substancialmente uma primeira porção da fenda que se estende da vedação em direção à extremidade aberta externa da estrutura de cilindro. a vedação de amortecimento pode ser movimentada durante retração da estrutura de êmbolo em uma direção de retração da estrutura de êmbolo de modo que fluido que escoa para fora da saída da parede lateral da estrutura de êmbolo quando a saída está na primeira porção da fenda escoa entre a vedação e a tampa.
BR112017001742A 2014-08-20 2015-08-18 atuador em uma empilhadeira tendo um mastro extensível BR112017001742A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/463,697 US9926178B2 (en) 2014-08-20 2014-08-20 Actuator in a lift truck
PCT/US2015/045635 WO2016028742A1 (en) 2014-08-20 2015-08-18 Actuator in a lift truck

Publications (1)

Publication Number Publication Date
BR112017001742A2 true BR112017001742A2 (pt) 2018-02-14

Family

ID=54012304

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017001742A BR112017001742A2 (pt) 2014-08-20 2015-08-18 atuador em uma empilhadeira tendo um mastro extensível

Country Status (7)

Country Link
US (1) US9926178B2 (pt)
EP (1) EP3183202B1 (pt)
KR (1) KR102384425B1 (pt)
CN (1) CN106660771B (pt)
AU (1) AU2015305656B2 (pt)
BR (1) BR112017001742A2 (pt)
WO (1) WO2016028742A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10202988B2 (en) * 2016-06-17 2019-02-12 Deere & Company Cushion mechanism for a hydraulic cylinder
CN112983924B (zh) * 2019-12-18 2022-05-13 比亚迪股份有限公司 柱塞缸及车辆

Family Cites Families (32)

* Cited by examiner, † Cited by third party
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US1141447A (en) * 1914-12-29 1915-06-01 Oscar Dellwitz Rolling-machine.
US2443312A (en) 1944-03-06 1948-06-15 Hpm Dev Corp Pressure cylinder
FR1356328A (fr) * 1963-02-11 1964-03-27 Westinghouse Freins & Signaux Vérin à rappel pneumatique, notamment pour appareil percuteur
US3285616A (en) 1964-04-14 1966-11-15 Kingsley A Doutt Cushion seal for piston and cylinder assemblies
US3401604A (en) 1967-05-17 1968-09-17 Ind Specialties Inc Differential area gas cylinder
AU3481871A (pt) * 1970-10-02 1973-05-03 Massey Ferguson Services Nv
US3913460A (en) 1972-08-10 1975-10-21 Mosier Ind Inc Impact damping means for fluid cylinders
US3974910A (en) * 1975-02-28 1976-08-17 Papai Imre F Fluid cylinder decelerating means
FR2317532A1 (fr) 1975-07-07 1977-02-04 Gratzmuller Jean Louis Verin hydraulique a amortisseur incorpore avec realimentation de la chambre d'amortissement
US4207802A (en) * 1978-04-05 1980-06-17 Homuth Kenneth C Hydraulic cylinder with improved dashpot and porting
US4301714A (en) * 1979-05-24 1981-11-24 Ab Mecman Damping device in pressurized fluid cylinders
US4296675A (en) * 1979-07-16 1981-10-27 Aeroquip Corporation Cylinder cushion with contractable ring
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JPS5917074A (ja) 1982-07-16 1984-01-28 Hitachi Constr Mach Co Ltd ロジツク弁
US4458717A (en) 1983-03-14 1984-07-10 Aeroquip Corporation Cylinder cushion seal
US4638717A (en) 1985-02-01 1987-01-27 Flo-Tork, Inc. Combination of cushion, adjuster and side ports in a single unit rotary actuator
CN1008201B (zh) * 1985-02-28 1990-05-30 株式会社丰田自动织机制作所 具有缓冲流量控制阀装置的液压操作缸
US4688775A (en) * 1985-04-15 1987-08-25 Teledyne Industries, Inc. Self-lubricating die cylinder
JP2617954B2 (ja) * 1987-10-29 1997-06-11 日本バルカー工業株式会社 圧力シリンダ用クッションパッキン
DE19501495C1 (de) 1995-01-19 1995-11-23 Daimler Benz Ag Hydraulische Ventilsteuervorrichtung
DE29617922U1 (de) 1996-10-15 1996-11-28 Heilmeier & Weinlein Magnetbetätigtes Ablaßventil eines elektrohydraulischen Hubmoduls
JPH10122205A (ja) 1996-10-21 1998-05-12 Kayaba Ind Co Ltd 油圧シリンダ
JPH11292499A (ja) * 1998-04-10 1999-10-26 Toyota Autom Loom Works Ltd フォークリフトのリフトシリンダ及びマスト装置
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KR101161304B1 (ko) * 2009-10-28 2012-07-04 볼보 컨스트럭션 이큅먼트 에이비 체크링을 포함하는 유압실린더 쿠션장치
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JP5429830B2 (ja) * 2012-03-26 2014-02-26 株式会社伊丹精機 リフトシリンダ及びそれを備えたフォークリフト

Also Published As

Publication number Publication date
EP3183202B1 (en) 2019-04-17
US9926178B2 (en) 2018-03-27
AU2015305656A1 (en) 2017-01-19
EP3183202A1 (en) 2017-06-28
WO2016028742A1 (en) 2016-02-25
KR20170044084A (ko) 2017-04-24
AU2015305656B2 (en) 2019-11-14
US20160052759A1 (en) 2016-02-25
CN106660771A (zh) 2017-05-10
KR102384425B1 (ko) 2022-04-12
CN106660771B (zh) 2019-04-16

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements