BR9708866A - Amortecedor para porta de cacamba de escavadeira. - Google Patents

Amortecedor para porta de cacamba de escavadeira.

Info

Publication number
BR9708866A
BR9708866A BR9708866-8A BR9708866A BR9708866A BR 9708866 A BR9708866 A BR 9708866A BR 9708866 A BR9708866 A BR 9708866A BR 9708866 A BR9708866 A BR 9708866A
Authority
BR
Brazil
Prior art keywords
door
excavator
excavator bucket
shock absorber
housing
Prior art date
Application number
BR9708866-8A
Other languages
English (en)
Inventor
Reggald Emory Isley
Robert Myles Buchan
Douglas Calvin Gatter
Original Assignee
Risley Enterprises Ltd
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 Risley Enterprises Ltd filed Critical Risley Enterprises Ltd
Publication of BR9708866A publication Critical patent/BR9708866A/pt

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E02F3/4075—Dump doors; Control thereof
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Shovels (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Vibration Dampers (AREA)
  • Fluid-Damping Devices (AREA)
  • Earth Drilling (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Braking Arrangements (AREA)
  • Hinges (AREA)
  • Details Of Valves (AREA)

Abstract

"AMORTECEDOR PARA PORTA DE CAçAMBA DE ESCAVADEIRA". Um amortecedor (60) é usado para amortecer o pivotamento da porta (36) sobre uma caçamba de escavadeira (30) para prevenir que a porta (36) venha a ser danificada pelo repetido impacto de seu fechamento. O amortecedor (60) tem um alojamento (61) que é montado na caçamba de escavadeira e um eixo (70) pivotavelmente montado no alojamento e conectado com uma porta de escavadeira (36). O eixo (70) quando a porta da escavadeira (36) se abre. O alojamento (61) tem uma cavidade cilíndrica (72) em torno do eixo. A cavidade (72) é dividida em dois volumes (72B, 72A) por um membro de comporta (82) e um braço raspador (80) sobre o eixo (70). O braço raspador (80) força fluido hidráulico (84) a fluir através de um orifício (101) entre os volumes (72B, 72 A) quando o eixo gira. O braço raspador (80) tem verdadores extremos (90) que selam contra as paredes extremas (68, 66) da cavidade (72). Os vedadores extremos (90) são forçados para o exterior pela pressão hidráulica quando a porta (36) está se fechando. Uma válvula unidirecional (102) permite que o fluido hidráulico ultrapasse o orifício (101) enquanto a porta (36) está se abrindo. O amortecedor (60) requer menos manutenção que os amortecedores do tipo de fricção precedentes.
BR9708866-8A 1996-04-26 1997-04-09 Amortecedor para porta de cacamba de escavadeira. BR9708866A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/639,219 US5735067A (en) 1996-04-26 1996-04-26 Snubber for excavator bucket door
PCT/CA1997/000237 WO1997041312A1 (en) 1996-04-26 1997-04-09 Snubber for excavator bucket door

Publications (1)

Publication Number Publication Date
BR9708866A true BR9708866A (pt) 2000-01-04

Family

ID=24563209

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9708866-8A BR9708866A (pt) 1996-04-26 1997-04-09 Amortecedor para porta de cacamba de escavadeira.

Country Status (11)

Country Link
US (2) US5735067A (pt)
EP (1) EP0912805B1 (pt)
AT (1) ATE202607T1 (pt)
AU (1) AU724119B2 (pt)
BR (1) BR9708866A (pt)
CA (1) CA2253258C (pt)
DE (1) DE69705409T2 (pt)
ES (1) ES2158534T3 (pt)
PE (1) PE103798A1 (pt)
PT (1) PT912805E (pt)
WO (1) WO1997041312A1 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5988329A (en) * 1997-11-20 1999-11-23 Turn-Act, Inc. Rotary damper
US6410295B1 (en) 1999-03-30 2002-06-25 Novozymes A/S Alpha-amylase variants
US6467202B1 (en) 1999-07-01 2002-10-22 Bucyrus International, Inc. Dynamically active dipper door mechanism
US6591521B2 (en) 2000-10-05 2003-07-15 Bucyrus International, Inc. Dipper door and dipper door assembly
GB2389637B (en) * 2002-06-10 2005-12-07 Ralph Stuart Norman Fluidic damping device
CN1898446A (zh) * 2003-10-22 2007-01-17 迪伽澳大利亚有限公司 减振装置
WO2005071170A1 (en) * 2004-01-23 2005-08-04 Grant Alan David Wallett A bucket for a mechanical shovel
US7096610B1 (en) 2005-06-03 2006-08-29 Bucyrus International, Inc. Dipper assembly including a closure mechanism
CA2698850A1 (en) 2010-04-01 2011-10-01 Projet International Inc. Dipper door retarding mechanism
AU2012202101B2 (en) 2011-04-14 2014-10-02 Joy Global Surface Mining Inc Snubber for shovel dipper
AU2012255607A1 (en) 2011-05-19 2013-10-31 Global Casting Inc. Snubber apparatus, e.g., for excavation bucket
US8943715B2 (en) 2012-07-09 2015-02-03 Harnischfeger Technologies, Inc. Lubrication pump
US9180558B2 (en) * 2012-12-19 2015-11-10 Caterpillar Global Mining Llc Hydraulic door snubber
US9605405B2 (en) 2014-07-28 2017-03-28 Caterpillar Global Mining Llc Snubber for machine
US9617707B2 (en) 2014-07-28 2017-04-11 Caterpillar Global Mining Llc Snubber for machine
US10301792B2 (en) * 2015-04-30 2019-05-28 Micromatic Llc Hydraulic dampener for use on mine shovels
CL2015001928U1 (es) 2015-07-07 2015-11-13 Minetec Sa Sistema de frenos para puertas de baldes de excavadora que aumenta la fuerza de frenado de dicha puerta, permitiendo usar tapas mas pesadas con mas blindaje, que comprende un primer y un segundo par de frenos, en que cada par de frenos esta conformado por dos frenos iguales ya sea hidraulicos o mecanicos alineados entre si.
AU2017201271B2 (en) * 2016-09-28 2023-02-23 Joy Global Surface Mining Inc Snubber for shovel dipper
US20220267983A1 (en) * 2021-02-25 2022-08-25 Caterpillar Inc. Snubber system for retarding swinging movement of doors of dippers
CA3159124A1 (en) * 2021-05-20 2022-11-20 9257-5810 Quebec Inc. Snubber apparatus for earth-working bucket

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140080A (en) * 1962-12-12 1964-07-07 Houdaille Industries Inc Friction snubber with two-way bump stop
US3402486A (en) * 1965-09-21 1968-09-24 Northwest Engineering Corp Dipper
US4054186A (en) * 1975-04-10 1977-10-18 Barry Wright Corporation Snubber apparatus
US4006832A (en) * 1975-06-18 1977-02-08 Unit Rig & Equipment Co. Bucket door snubber
US4057237A (en) * 1976-05-19 1977-11-08 The Babcock & Wilcox Company Snubber
US4063373A (en) * 1977-01-28 1977-12-20 Esco Corporation Mechanism to restrain slamming of shovel dipper doors
US4609081A (en) * 1984-07-12 1986-09-02 Esco Corporation Hydraulic snubber
US4723639A (en) * 1984-07-12 1988-02-09 Esco Corporation Rotary hydraulic snubber with a bypass valve
US4770083A (en) * 1987-02-19 1988-09-13 Deere & Company Independently actuated pressure relief system
US5064033A (en) * 1989-06-29 1991-11-12 Enidine Co., Ltd. Rotary damper

Also Published As

Publication number Publication date
AU724119B2 (en) 2000-09-14
PT912805E (pt) 2001-11-30
EP0912805A1 (en) 1999-05-06
CA2253258A1 (en) 1997-11-06
DE69705409D1 (de) 2001-08-02
ES2158534T3 (es) 2001-09-01
DE69705409T2 (de) 2002-05-29
US5974705A (en) 1999-11-02
WO1997041312A1 (en) 1997-11-06
PE103798A1 (es) 1999-01-27
AU2283897A (en) 1997-11-19
US5735067A (en) 1998-04-07
EP0912805B1 (en) 2001-06-27
ATE202607T1 (de) 2001-07-15
CA2253258C (en) 2005-08-09

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Legal Events

Date Code Title Description
FBOS Technical and formal requirements: other requirements
HIFB Technical and formal requirements: requirement cancelled
FF Decision: intention to grant
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]