[go: up one dir, main page]

US3888371A - Public works machines and particularly to buckets therefor - Google Patents

Public works machines and particularly to buckets therefor Download PDF

Info

Publication number
US3888371A
US3888371A US480869A US48086974A US3888371A US 3888371 A US3888371 A US 3888371A US 480869 A US480869 A US 480869A US 48086974 A US48086974 A US 48086974A US 3888371 A US3888371 A US 3888371A
Authority
US
United States
Prior art keywords
spindle
primary
spindles
casing
base
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 - Lifetime
Application number
US480869A
Other languages
English (en)
Inventor
Rene V Moreau
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.)
Poclain SA
Original Assignee
Poclain SA
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 Poclain SA filed Critical Poclain SA
Application granted granted Critical
Publication of US3888371A publication Critical patent/US3888371A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/057—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on calcium oxide
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/308—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working outwardly
    • 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
    • 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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like

Definitions

  • ABSTRACT A Public Works machine includes a jib on which is pivotally mounted a balance beam carrying a bucket comprising a casing on which is pivoted a base, a pair of hydraulic jacks being coupled between the support and casing and the support and base respectively for controlling operation of the bucket, the balance beam and hydraulic jacks forming opposite parallel sides of three parallelograms.
  • a Public Works machine comprising:
  • balance beam mounted on said support for pivotal movement about a first spindle
  • a bucket which is mounted on said balance beam for pivotal movement about a second spindle and includes a casing, a base pivotable about a third spindle on said casing and a stop for limiting pivotal movement of said base relative to said casing;
  • a first hydraulic jack for positioning said casing relative to said support and which is coupled to said support by a first primary spindle and to said casing by a second primary spindle;
  • first and second spindles, said first and second primary spindles and said first and second secondary spindles are parallel and offset in respect of the common pivoting plane of said bucket and said balance beam, and the distances between said first spindle and said first primary spindle, said first spindle and said first secondary spindle, and said first primary spindle and said first secondary spindle are equal respectively to the distances between said second spindle and said second primary spindle, said second spindle and said second secondary spindle and said second primary spindle and said second secondary spindle.
  • the first spindle, first primary spindle and first secondary spindle may be substantially in line.
  • the second spindle, second primary spindle and second secondary spindle may be aligned in the configuration in which the base abuts the stop.
  • the first and second hydraulic jacks may be placeable in a configuration in which the distances between the first and second spindles, the first primary spindle and the second primary spindle, and the first secondary spindle and the second secondary spindle are equal.
  • the second secondary spindle may be coaxial with the third spindle.
  • FIG. I is a view in elevation of a bucket hinged on the end of a balance beam of an embodiment of a Public Works machine according to the invention.
  • FIG. 2 is a part sectional view along line II-II of FIG. 1;
  • FIG. 3 is a diagrammatic view of a hydraulic control circuit for manoeuvring the machine of FIGS. 1 and 2;
  • FIGS. 4 and 5 illustrate diagrammatically two special configurations of a machine according to the invention.
  • a balance beam 1 is pivotable about a spindle 3, called the first spindle, on one of the ends of a jib 2.
  • a bucket 4 is itself pivotable about a spindle 5, called the second spindle, on balance beam 1.
  • This bucket 4 comprises a casing 6 and a mov' able base 7, which is pivotable on casing 6 about a spindle 8, called the third spindle.
  • a stop 9 for limiting the pivoting movement of the base 7 in relation to the casing 6 is fixed to this casing 6.
  • base 7 rests against stop 9, while teeth I0 on the cats ing leading edge blade rest on ground ll parallel to its surface.
  • a first hydraulicjack 12 is coupled between jib 2 and casing 6 by spindles called the first primary spindle I3 and second primary spindle I4 respectively. As shown, spindles 8 and 14 are coaxial.
  • a second hydraulic jack 15 is coupled between jib 2 and movable base 7 by spindles called the first secondary spindle I6 and the second secondary spindle 17 respectively.
  • a hydraulic jack I8 is coupled between jib 2 and balance beam I, by means of two spindles, of which only one, spindle 19, on the balance beam 1 is visible.
  • the distances between spindles 3 and I3, 3 and I6 and I3 and 16 are equal respectively to the dis tances between spindles S and I4, 5 and 17 and I4 and I7;
  • spindles 3, I3 and 16 are substantially in line as are spindles 5, I4 and 17, at least in the configuration illustrated;
  • FIG. 3 diagrammatically illustrates a simplified circuit suitable for the control of hydraulic jacks I2, 15 and 18.
  • a pump 22 is connected by its suction pipe 24 to a fluid reservoir 23 and by its delivery pipe 25 to a first distributor 26.
  • Distributor 26 is itself connected by pipes 27 and 28 to the two chambers of hydraulic jack I5, and by pipe 29 to a second distributor 30.
  • the three positions of distributor 26 are as follows:
  • pipe 27 in the first position, pipe 27 communicates with pipe 29 and pipe 25 communicates with pipe 28;
  • pipe 25 in the second position, pipe 25 communicates with pipe 29 and pipes 27 and 28 are closed off inside distributor 26;
  • Distributor 30 is connected by pipes 31 and 32 to the two chambers of hydraulic jack l2, and by pipe 33 to a third distributor 34.
  • the three positions of distributor 30 are as follows:
  • pipe 31 communicates with pipe 33, and pipe 29 communicates with pipe 32;
  • pipe 29 in the second position, pipe 29 communicates with pipe 33 and pipes 31 and 32 are closed off insid: distributor 30;
  • pipe 29 communicates with pipe 31, and pipe 32 communicates with pipe 33.
  • Distributor 34 is itself connected by pipes 35 and 36 to the two chambers of hydraulic jack l8 and by pipe 37 to reservoir 23. its three positions are as follows:
  • pipe 33 in the first position, pipe 33 communicates with pipe 35, and pipe 36 communicates with pipe 37:
  • pipe 33 in the second position, pipe 33 communicates with pipe 37. and pipes 35 and 36 are closed off inside distributor 34;
  • pipe 33 in the third position, pipe 33 communicates with pipe 36 and pipe 35 communicates with pipe 37.
  • FIG. 3 corresponds to the configuration shown in FIGS. 1 and 2, the distances between spindles l3 and 14, and 16 and 17 respectively are equal to the same value D.
  • FIGS. 4 and 5 Two particular configurations of a machine similar to that of FIGS 1 and 2 are illustrated in FIGS. 4 and 5. Components similar to those already described are designated with the same numbers, followed by letter a in the case of FIG. 4, and letter b in the case of FIG. 5. Note that the two configurations illustrated in FIGS. 4 and 5 each correspond to a bucket emptying phase in which the base is pivoted relative to the casing.
  • This characteristic is also useful for levelling operations
  • jacks l2 and 15 enable a previously filled bucket to be emptied, either by causing jacks 12a and 15a to extend simultaneously (FIG. 4), or by causing jack 12b to extend and j 15b to retract FIG. 5). It is easy to envisage other methods of operation.
  • a Public Works machine comprising:
  • balance beam mounted on said support for pivotal movement about a first spindle
  • a bucket which is mounted on said balance beam for pivotal movement about a second spindle and includes a casing, a base pivotable about a third spin dle on said casing and a stop for limiting pivotal movement of said base relative to said casing;
  • a first hydraulic jack for positioning said casing relative to said support and which is coupled to said support by a first primary spindle and to said casing by a second primary spindle;
  • a second hydraulic jack for positioning said base relative to said support and which is coupled to said support by a first secondary spindle and to said base by a second secondary spindle;
  • first and second spindles. said first and second primary spindles and said first and second secondary spindles are parallel and offset in respect of the common pivoting plane of said bucket and said balance beam, and the distances between said first spindle and said first primary spindle, said first spindle and said first secondary spindle. and said first primary spindle and said first secondary spindle are equal respectively to the distances between said second spindle and said second primary spindle, said second spindle and said second secondary spindle and said second primary spindle and said second secondary spindle.
  • a machine wherein said first spindle, said first primary spindle and said first secondary spindle are substantially in line, and said first and second hydraulic jacks are able to be placed in a condition in which the distances between said first and second spindles, said first and second primary spindles and said first and second secondary spindles are equal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Operation Control Of Excavators (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)
  • Component Parts Of Construction Machinery (AREA)
US480869A 1973-06-28 1974-06-19 Public works machines and particularly to buckets therefor Expired - Lifetime US3888371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323787A FR2235234B1 (pt) 1973-06-28 1973-06-28

Publications (1)

Publication Number Publication Date
US3888371A true US3888371A (en) 1975-06-10

Family

ID=9121740

Family Applications (1)

Application Number Title Priority Date Filing Date
US480869A Expired - Lifetime US3888371A (en) 1973-06-28 1974-06-19 Public works machines and particularly to buckets therefor

Country Status (10)

Country Link
US (1) US3888371A (pt)
JP (1) JPS5750892B2 (pt)
BE (1) BE816201A (pt)
BR (1) BR7404805D0 (pt)
CA (1) CA992914A (pt)
DE (1) DE2428894C2 (pt)
ES (1) ES427814A1 (pt)
FR (1) FR2235234B1 (pt)
GB (1) GB1459568A (pt)
IT (1) IT1015423B (pt)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020874A1 (en) * 1991-05-24 1992-11-26 Geza Kovacs Lift arm and tilt linkage systems for load elevating vehicles
US5678979A (en) * 1995-08-01 1997-10-21 Kovacs; Geza Tilt linkage system for load elevating vehicles
US8123001B1 (en) 2008-03-18 2012-02-28 Paul Kristen, Inc. Modular platform/ scaffolding
CN107023045A (zh) * 2016-01-29 2017-08-08 广西柳工机械股份有限公司 用于工程机械的自调平机构

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045245B2 (ja) * 1980-11-05 1985-10-08 日立金属株式会社 溶融金属の精練方法
JPS5856470U (ja) * 1981-10-12 1983-04-16 アルプス電気株式会社 電子部品の取付構造
JPS58180946U (ja) * 1982-05-24 1983-12-02 小川　淳次 シヨベル系掘削機の底開きバケツト
JPS58191697U (ja) * 1982-06-10 1983-12-20 日本電気ホームエレクトロニクス株式会社 シ−ルド部材
AU774316B2 (en) * 2000-04-28 2004-06-24 Scaf-West Pty Ltd A truss building system
WO2015090472A1 (en) * 2013-12-20 2015-06-25 Ommapo Ab Implement tilting apparatus for an excavator
EP3405619B1 (de) * 2016-01-18 2019-10-09 HAZEMAG & EPR GmbH Vortriebs- und lademaschine und verfahren zum abbau von gestein

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323666A (en) * 1964-09-24 1967-06-06 Poclain Sa Mechanical ground levelling machine
US3737059A (en) * 1971-02-22 1973-06-05 Caterpillar Tractor Co Bucket arrangement
US3767070A (en) * 1971-04-13 1973-10-23 Wain Roy Lifting and excavating apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH388863A (de) * 1960-12-15 1965-02-28 Liebherr Hans Bagger
DE1634928A1 (de) * 1964-09-24 1970-07-23 Poclain Sa Parallelogrammartige Verstellanordnung fuer das Arbeitswerkzeug eines Planiergeraets
GB1249330A (en) * 1967-10-26 1971-10-13 Orenstein & Koppel Ag Bucket for a hydraulic excavator
US3854608A (en) * 1971-04-13 1974-12-17 Wain Co Roy Materials handling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323666A (en) * 1964-09-24 1967-06-06 Poclain Sa Mechanical ground levelling machine
US3737059A (en) * 1971-02-22 1973-06-05 Caterpillar Tractor Co Bucket arrangement
US3767070A (en) * 1971-04-13 1973-10-23 Wain Roy Lifting and excavating apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020874A1 (en) * 1991-05-24 1992-11-26 Geza Kovacs Lift arm and tilt linkage systems for load elevating vehicles
US5192179A (en) * 1991-05-24 1993-03-09 Geza Kovacs Lift arm and tilt linkage systems for load elevating vehicles
US5678979A (en) * 1995-08-01 1997-10-21 Kovacs; Geza Tilt linkage system for load elevating vehicles
US8123001B1 (en) 2008-03-18 2012-02-28 Paul Kristen, Inc. Modular platform/ scaffolding
CN107023045A (zh) * 2016-01-29 2017-08-08 广西柳工机械股份有限公司 用于工程机械的自调平机构

Also Published As

Publication number Publication date
JPS5037203A (pt) 1975-04-07
FR2235234A1 (pt) 1975-01-24
BR7404805D0 (pt) 1975-10-07
FR2235234B1 (pt) 1976-04-30
JPS5750892B2 (pt) 1982-10-29
ES427814A1 (es) 1977-02-16
GB1459568A (en) 1976-12-22
BE816201A (fr) 1974-09-30
DE2428894A1 (de) 1975-01-23
CA992914A (en) 1976-07-13
DE2428894C2 (de) 1983-12-01
IT1015423B (it) 1977-05-10

Similar Documents

Publication Publication Date Title
US3888371A (en) Public works machines and particularly to buckets therefor
US4077140A (en) Hydraulic excavator equipment for excavation laterally of the excavator
US3778111A (en) Ripper tooth attachment for a backhoe
US2984373A (en) Material handling apparatus
US20180333987A1 (en) Working Machine
US3149737A (en) Hydraulic shovels
US3536216A (en) Bucket tilt control system for level-crowd type loaders
US3140000A (en) Backhoe
US2374016A (en) Scraper
US3653131A (en) Excavating apparatus
US3575307A (en) Earthworking machines
US3142915A (en) Automatic level control system for construction machines
US3584751A (en) Mechanical earth working machine
EP0036850B1 (en) A working machine for demolition and excavation work
US2801012A (en) Digging machine
US4500250A (en) Backhoe swing mechanism
US3536218A (en) Earth-working machine with movable counterweight
US2731163A (en) Ditching machine having swingably mounted clamshell bucket
US3603614A (en) Means for stabilizing a civil engineering machine
US3094229A (en) Hydraulic back hoe
US2742165A (en) Material handling device
US3139199A (en) Earth moving equipment
US3388819A (en) Material handling machine
US3412880A (en) Material-handling boom having straight line motion
JP3237856U (ja) 掘削機のケーシングチューブ押込み装置及び掘削機