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EP0499682B1 - Schaufel für Erdbewegungsgeräte - Google Patents

Schaufel für Erdbewegungsgeräte Download PDF

Info

Publication number
EP0499682B1
EP0499682B1 EP91111259A EP91111259A EP0499682B1 EP 0499682 B1 EP0499682 B1 EP 0499682B1 EP 91111259 A EP91111259 A EP 91111259A EP 91111259 A EP91111259 A EP 91111259A EP 0499682 B1 EP0499682 B1 EP 0499682B1
Authority
EP
European Patent Office
Prior art keywords
bucket
grating
bucket according
side walls
vibration
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
EP91111259A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0499682A1 (de
Inventor
Helmut Wack
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.)
Caterpillar Vibra Ram GmbH and Co KG
Original Assignee
Wack Helmut
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 Wack Helmut filed Critical Wack Helmut
Publication of EP0499682A1 publication Critical patent/EP0499682A1/de
Application granted granted Critical
Publication of EP0499682B1 publication Critical patent/EP0499682B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/405—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors using vibrating means
    • 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
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S37/00—Excavating
    • Y10S37/904—Vibration means for excavating tool

Definitions

  • the invention relates to a bucket for earth moving equipment, e.g. Excavators, wheel loaders or the like according to the preamble of claim 1.
  • Buckets of this type are designed as attachments for excavators, wheel loaders or corresponding work equipment and have two steel side cheeks which are arranged essentially parallel to one another at a mutual spacing.
  • a blade base which is also made of steel, extends between the side panels and connects the side panels to one another, so that a vessel-like blade which is open at least on one side is formed.
  • a wedge-shaped receiving bar is arranged on the lower edge of the bucket bottom, which is equipped with teeth, which should facilitate the penetration of the bucket into the ground or the material to be picked up.
  • Buckets of this type are also known as loading buckets.
  • folding buckets which consist of two cheek-shaped buckets, the two buckets basically having the same structure as a loading bucket. It should be noted here that the invention relates to both types of blades.
  • the bucket is attached, for example, to the free end of the arm of an excavator and connected to the hydraulic circuit of the excavator, so that it can be pivoted together with the boom and arm of the excavator and is adjustable relative to it.
  • the bucket is usually used to excavate spilled material, as well as to load vehicles with loose material or to transfer material.
  • earthmoving devices such as excavators, wheel loaders or the like are usually used, which are provided with a loading shovel of the type mentioned.
  • the demolition material picked up in this way consists, in addition to the relatively large fragments still to be shredded, of concrete pieces which are already of such a small size that further shredding in the crushing plant is not necessary and may not be possible. If these small-sized pieces of concrete are nevertheless fed to the crushing plant, the remaining capacity of the crushing plant for the large fragments to be crushed is reduced. In this way, the performance of the crushing plant, i.e. the amount of shredded material per unit time is reduced. Material of particularly small grain size is even extremely undesirable in crushing plants, since it leads to increased wear on the crushing tools and also to malfunctions.
  • a blade is known in which the blade bottom is formed by two nested grids.
  • the grids are pivotally mounted at their front end and connected to an eccentric drive at their rear end, so that they can be moved up and down both relative to one another and relative to the blade housing.
  • Such a blade has in the transverse direction, i.e. perpendicular to the side walls a relatively low stiffness and has the further disadvantage that the vibrations of the grate are transmitted via the shovel into the handle of the earthmoving device.
  • the invention has for its object to provide a blade of the known type, which has a high stability, brings only a small vibration with it and reliably ensures a quick and good sorting or separation of the material located in the blade.
  • the grid-like grate is mounted on the side walls via vibration dampers.
  • a vibratory movement is possible, while on the other hand the grate is added to the overall rigidity of the blade.
  • Storage using proven vibration dampers, e.g. Schwingmetal is inexpensive to implement and also allows the grate-like grate to move with little noise, which is advantageous in terms of conditions at the workplace and in terms of environmental protection.
  • the vibration is also not transmitted to the excavator arm via the attachment points of the bucket.
  • the side walls that support the grid-like grate have a relatively high stability, so that the mobility of the grid-like grate is not impaired by its storage. If the grid-like grate is supported on each side cheek by two vibration dampers, tilting of the grate can be largely avoided and a high sorting effect can thus be ensured.
  • the blade base consists, at least in sections, of a grate which is mounted on the blade and which can be set in vibration relative to the blade. Due to the grid-like grate, the material in the bucket can be pre-sorted or sieved. Clogging of the grate by the vibration movements that keep the material in constant motion is effectively avoided. This enables a good and quick sorting of small fragments to be sorted out and coarse demolition material.
  • the blade can also be used without vibrating the grid-like grate, making it more conventional in its mode of operation Loading or folding bucket without or with only a small sorting effect. In this way, the blade can be used in a variety of ways and can therefore be used inexpensively.
  • the entire blade base is formed by the grid-like grate, a very rapid separation of the material to be sorted out can be achieved, wherein in particular it is avoided that the material builds up in areas in the blade and the sieving effect is reduced.
  • loading and folding buckets have a strip of wedge-shaped cross-section on the receiving edge of the bucket bottom, which is usually still covered with wear-resistant teeth. If the inner upper edge of the bar is higher than the top of the grate in the area adjacent to the bar, it is ensured that the material slides up over the wedge-shaped bar and onto the grate without the considerable pressure and thrust forces when picking up the Apply material to the grate and its bearings.
  • a hydraulic motor is used to generate the oscillatory movement, it can be easily connected to the hydraulic device of the earth moving device, e.g. of the excavator, wheel loader or the like. Are connected so that no additional drive unit is necessary.
  • the arrangement of a gear between the hydraulic motor and the grid-like grate allows the movement of the output member of the hydraulic motor to be converted into a suitable vibration movement both with regard to the course of movement and the speed of movement.
  • An eccentric gear is structurally relatively simple and not susceptible to faults, which is very advantageous in the difficult working conditions usually prevailing on construction sites.
  • a vibration-stable and favorable in terms of sorting effect results from the fact that the hydraulic motor and the gearbox is arranged approximately in the middle of the bucket bottom and approximately in the middle between the side cheeks, which is further optimized by the fact that the hydraulic motor and the gearbox are approximately centered between the vibration dampers on the Sidewalls is arranged.
  • a linear vibration movement or the combination of a circular and a linear vibration movement is also possible.
  • the vibration movement can either run essentially parallel to the plane of the side cheeks or perpendicular to it, movement parallel to the plane of the side cheeks having the advantage that the bearing forces, since the grid-like grating is supported on the side cheeks, in the plane of the side cheeks act, and unfavorable lateral forces can be kept low.
  • the grid-like grate consists of sickle-shaped disk segments which are arranged next to one another essentially parallel to the plane of the side cheeks, a high stability of the grid-like grate can be achieved. Even an impact of the back of the blade against, for example, a concrete part to be demolished does not lead to a deformation of the lattice-like grate, since the forces are introduced into the crescent-shaped slice segments essentially in the slice plane and can thus be derived in a simple manner.
  • an earthmoving device in the form of an excavator 10 has a chassis 13 on which a body is rotatably mounted.
  • the structure comprises a driver's cab 11 and a motor 12 which serves both to move the excavator 10 and to move the attachments attached to the excavator.
  • a boom 14 is mounted on the structure, to which in turn the excavator arm 15 is connected. Boom 14 and stick 15 can be moved both relative to one another and relative to the excavator structure by means of known hydraulic actuators.
  • a shovel 20 is mounted, which can be pivoted relative to the excavator arm 15 in the plane of the drawing according to FIG. 1 by means of a piston-cylinder unit 16.
  • FIGS. 2 to 4 show an enlarged illustration of the blade 20.
  • the blade 20 has two side cheeks 21 which are connected to the upper side by means of crossbeams 21a and via these as well as via a cutting knife or a strip 21b are stiffened at the bottom.
  • connecting straps 20a are fastened, by means of which the shovel can be attached to the free end of the excavator arm 15.
  • Teeth 29 are mounted on the cutting knife 21, which facilitate the penetration of the blade into the material to be picked up.
  • the side walls 21 as well as the crossbeams 21a and the cutting knife form a rigid, rigid frame.
  • a grid-like grate 23 is used, which forms the scoop bottom.
  • the lattice-like grate 23 consists of a plurality of sickle-shaped disc segments 22 which are arranged next to one another essentially parallel to the plane of the side cheeks 21 and are held together at a distance by means of a plurality of cross bars 27 and 28.
  • the cutting knife 21b has a wedge-shaped cross section. The inside the upper edge 21c of the blade lies higher than the upper side 22a of the disk segments 22 in this area, so that these are not loaded from the front by the working pressure of the blade when the demolition material is picked up.
  • the grid-like grate 23 is mounted on the side cheeks 21 via vibration dampers 25, two vibration dampers being provided on each side cheek. Such storage of the grid-like roast 23 enables its movement relative to the rigid frame formed by the side walls 21 and the cross members 21a and the cutting knife.
  • a hydraulic motor 24 is arranged on the grid-like grate 23 and is connected to the hydraulic circuit of the excavator via pressure medium lines 24a, as shown in FIG. 1.
  • a gear 26 is interposed, which is designed as an eccentric gear, as shown in particular in Figure 2.
  • the eccentric rotates in the drawing plane according to FIG. 2, whereby the grid-like grate 23 is excited to a circular vibration movement in the drawing plane according to FIG. 2 or in a plane parallel to it.
  • Such a circular vibration movement runs essentially parallel to the plane of the side cheeks 21.
  • This vibration movement keeps the material in the blade 20 in constant motion and effectively sorts it. It has been shown that an oscillation amplitude of 5 to 10 mm is sufficient to achieve a good sorting effect.
  • the vibration frequency should be about 2000 min ⁇ 1, but depending on the The nature and nature of the material to be sorted can also be achieved with other vibration frequencies.
  • the hydraulic motor 24 and the transmission 26 sit approximately in the middle between the bearings or the vibration dampers 25, via which the grate is connected to the side cheeks 21.
  • the axes of the bearings or the vibration damper on the one hand and the hydraulic motor 25 or the gear 26 on the other hand are only slightly offset, so that an overall vibration-stable design results.
  • a linear vibration movement can also be provided.
  • a gear of a different design is necessary which converts the rotary movement of the hydraulic motor into a linear vibration movement.
  • the invention is not limited to a vibration running parallel to the plane of the side walls, but it is furthermore possible to make the grid-like grate essentially perpendicular to the plane of the side walls, i.e. to excite in the drawing plane of Figures 3 and 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Revetment (AREA)
  • Soil Working Implements (AREA)
  • Component Parts Of Construction Machinery (AREA)
EP91111259A 1991-02-18 1991-07-06 Schaufel für Erdbewegungsgeräte Expired - Lifetime EP0499682B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4104950A DE4104950A1 (de) 1991-02-18 1991-02-18 Schaufel fuer erdbewegungsgeraete
DE4104950 1991-02-18
DE9202321U DE9202321U1 (de) 1991-02-18 1992-02-22 Schaufel für Erdbewegungsgeräte

Publications (2)

Publication Number Publication Date
EP0499682A1 EP0499682A1 (de) 1992-08-26
EP0499682B1 true EP0499682B1 (de) 1995-04-19

Family

ID=25901127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111259A Expired - Lifetime EP0499682B1 (de) 1991-02-18 1991-07-06 Schaufel für Erdbewegungsgeräte

Country Status (8)

Country Link
US (1) US5172498A (ja)
EP (1) EP0499682B1 (ja)
JP (1) JP2956798B2 (ja)
AT (1) ATE121479T1 (ja)
CA (1) CA2048551A1 (ja)
DE (4) DE4104950A1 (ja)
DK (1) DK0499682T3 (ja)
ES (1) ES2072486T3 (ja)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398430A (en) * 1991-05-20 1995-03-21 Scott; Thomas M. Earth moving and compacting rig
SE464094B (sv) * 1990-03-06 1991-03-04 Clifford Modig Skopaggregat med saallningsfunktion
RU2002908C1 (ru) * 1991-06-19 1993-11-15 Институт горного дела СО РАН Экскаваторный ковш активного действи
FI749U1 (fi) * 1993-03-04 1993-06-09 Ideachip Oy Siktkross foer jordmaterial
NL194009C (nl) * 1993-09-28 2001-04-03 Anthonie De Gooyer Schudbak voor het schonen van stortgoedmateriaal.
US5493796A (en) * 1994-07-25 1996-02-27 Ballew; Raymond E. Pipeline padding apparatus
USD409629S (en) * 1997-02-03 1999-05-11 Kabushiki Kaisha Kobe Seiko Sho Excavator
DE19715358C2 (de) * 1997-04-12 1999-11-25 Peter Dappen Löffelbagger
USD406152S (en) * 1997-05-15 1999-02-23 Kabushiki Kaisha Kobe Seiko Sho Excavator
US6135290A (en) * 1998-06-05 2000-10-24 Rockland Manufacturing Company Sifter attachment for excavating machines and the like
GB9908699D0 (en) * 1999-04-17 1999-06-09 Leyland Rodney J Segregator bucket
YU69202A (sh) 2000-03-14 2004-09-03 Htb. Llc. Aparat za razdvajanje materijala i postupak za korišćenje istog
US6581308B1 (en) 2000-07-25 2003-06-24 Caterpillar Inc. High capacity bucket arrangement
US6662681B2 (en) * 2002-01-14 2003-12-16 Kent Demolition, Inc. Connector assembly for mounting an implement to a prime mover
AUPS270802A0 (en) * 2002-05-31 2002-06-20 Turnbull, Sam Dominic Seaton A screen/mixer
US6757992B1 (en) 2003-01-14 2004-07-06 New Holland North America, Inc. Skid steer loader bucket shaker
FI113846B (fi) * 2003-04-09 2004-06-30 Yhteisviejaet Tamex Oy Menetelmä maa-aineksen seulomiseksi ja seulaväline
JP5362074B2 (ja) * 2012-05-29 2013-12-11 株式会社小松製作所 建設機械の掘削バケット
FI123997B (fi) * 2012-10-01 2014-01-31 Pohmako Ky Kauha ja sen käyttö
US20140137444A1 (en) * 2012-11-16 2014-05-22 Caterpillar Inc. Loader bucket with counterweight
ITMO20130094A1 (it) * 2013-04-12 2014-10-13 Vibbra S R L Benna ad effetto vagliante.
USD772952S1 (en) * 2014-08-05 2016-11-29 Caterpillar Inc. Excavator
JP6604624B2 (ja) * 2015-05-11 2019-11-13 キャタピラー エス エー アール エル 作業機械の自動振動装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US683775A (en) * 1900-12-15 1901-10-01 Millard F Kirkpatrick Dipper for steam-shovels.
AT210661B (de) * 1959-02-23 1960-08-25 Kuxmann & Co Komm Ges A Akt Hackfruchterntemaschine mit hinter dem Schar angeordneten Schwingsiebrosten
US3072257A (en) * 1959-08-21 1963-01-08 Lester W Hockenberry Combined gravel collecting and screening mechanism
US3003265A (en) * 1959-12-30 1961-10-10 Lutjens Herman Bucket device
AT218299B (de) * 1960-09-29 1961-11-27 Steyr Daimler Puch Ag Vorratsroder für Hackfrüchte
US3461968A (en) * 1966-04-28 1969-08-19 Rca Corp Screening loader
US3395798A (en) * 1968-02-20 1968-08-06 Walter A. Erickson Materials separating loader bucket
GB1291555A (en) * 1970-01-15 1972-10-04 Econofuel Ltd Apparatus for and method of screening free running material
DE3101606A1 (de) * 1981-01-20 1982-08-19 Raiffeisenbank Winzer-Hengersberg eG, 8351 Winzer Vorrichtung zum laden von druckempfindlichem gut voneiner halde, insbesondere von zuckenrueben auf ein transportfahrzeug zum abtransport vom feld
SE454096B (sv) * 1984-10-18 1988-03-28 Prodec Inter Ab Roterbar separationskorg med kopplingsorgan till redskapsberare
US4698925A (en) * 1986-01-22 1987-10-13 Jones Harry A Soil reclaiming implement
SE462110B (sv) * 1989-04-21 1990-05-07 Tord Jonsson Anordning vid sorterskopa

Also Published As

Publication number Publication date
CA2048551A1 (en) 1992-08-19
DE9202321U1 (de) 1993-03-25
ES2072486T3 (es) 1995-07-16
US5172498A (en) 1992-12-22
DE9116810U1 (de) 1993-12-16
DE59105270D1 (de) 1995-05-24
DK0499682T3 (da) 1995-09-04
DE4104950A1 (de) 1992-08-20
JP2956798B2 (ja) 1999-10-04
ATE121479T1 (de) 1995-05-15
JPH04269217A (ja) 1992-09-25
EP0499682A1 (de) 1992-08-26

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