EP0640724B1 - Baumaschine, insbesondere Baggerfahrzeug - Google Patents
Baumaschine, insbesondere Baggerfahrzeug Download PDFInfo
- Publication number
- EP0640724B1 EP0640724B1 EP94112370A EP94112370A EP0640724B1 EP 0640724 B1 EP0640724 B1 EP 0640724B1 EP 94112370 A EP94112370 A EP 94112370A EP 94112370 A EP94112370 A EP 94112370A EP 0640724 B1 EP0640724 B1 EP 0640724B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- arm portion
- cylinder unit
- construction machine
- machine according
- 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
Links
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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
- E02F3/30—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
- E02F3/301—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 with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
-
- 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
- E02F3/32—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 downwardly and towards the machine, e.g. with backhoes
Definitions
- the invention relates to a construction machine, in particular Excavator vehicle, with a frame and a boom, the one inner arm piece articulated on the frame side and a working tool load-bearing outer arm piece and articulated piston-cylinder units for individual pivoting of the arm pieces and of the working tool opposite the frame or the frame side has adjacent arm piece, at least one piston-cylinder unit entirely or predominantly within a hollow profile having arm piece is arranged.
- a construction machine with a single hydraulic boom pivotable arm pieces is known, both as Wheeled vehicle with a digging spoon as a working tool (DE 41 24 461 C) as a tracked vehicle with a loading shovel as a working tool (DE 24 11 051 C).
- each arm piece points both at its inner end and at its outer end a hinge axis that it with the frame adjacent Arm piece or extension bracket and with the neighboring one on the tool side Connect arm piece or tool.
- each arm piece points two articulation axes for attaching the piston-cylinder units on, one in the the piston-cylinder unit to his attacks own pivoting, and one from which the piston-cylinder unit for swiveling the neighboring tool Arm piece or tool runs out.
- the piston-cylinder units each in the vertical central plane of the Boom arranged or laterally offset next to the relevant one Arm piece must be arranged, possibly in a double version symmetrical to the vertical center plane of the boom.
- the piston-cylinder units are poorly protected, so that there is a risk that, with regard to the rough construction site operation in connection with carelessness the operation to undesirable shear forces on the Piston-cylinder units come into contact with obstacles. Corresponding damage to the piston-cylinder units hard to avoid even if these piston-cylinder units are particularly stable, but what already represents an undesirable additional effort.
- the boom is only made up of two separately pivotable arm pieces.
- the bending of the inner arm piece results in a ratio comparatively short range to arm length overall.
- the invention is based, so the task of the construction machine improve that with the effort corresponding maximum range Damage or bending of the piston-cylinder units especially in the most vulnerable area excluded are.
- an excavator vehicle 1 is provided with four Is equipped with wheels 2 and has a chassis frame 3, on which a driver's cab 5 is mounted by means of a slewing ring 4 is.
- a housing 6 At the rear of the driver's cab 5 is a housing 6 provided that the travel drive as well as the hydraulic devices and control devices for the excavator vehicle 1 records.
- a shield 11 is attached by means of a piston-cylinder unit 12 can be raised and lowered.
- the excavator vehicle 1 is given a fixed stand, provided for To be able to carry out dredging.
- a boom 14 is connected to the mounting bracket 8 consists of an inner arm piece 15, a middle arm piece 16 and an outer arm piece 17.
- the latter is the working tool 18, in the illustrated embodiment a digging spoon, attached.
- the extension bracket 8, the arm pieces 15 to 17 and the working tool 18 are through horizontal hinge axes 19, 20, 21 and 22 connected together.
- an inner piston-cylinder unit 23 For individual pivoting of the individual arm pieces an inner piston-cylinder unit 23, a middle piston-cylinder unit 24 and an outer piston-cylinder unit 25 are provided. Another serves to pivot the digging spoon 18 Piston-cylinder unit 26.
- Each piston-cylinder unit 23 to 26 has one closed End more vehicle 27 articulated cylinders and one from this extendable piston rod 28 on its free End is more articulated on the tool side.
- Each arm piece thus has two articulation axes 31 and 32 and 33, respectively and 34 or 35 and 36 on which the piston rod 28 of the associated Piston-cylinder unit attacks 23 to 25 or the Cylinder 27 of the subsequent piston-cylinder unit 24 to 26 connected.
- the middle piston-cylinder unit 24 runs within the middle with closed box profile Arm piece 16, with only that on the inner arm piece 15 in the articulation axis 32 articulated cylinder end from the middle Arm piece 16 protrudes.
- the articulation axis 33 of the middle piston-cylinder unit 24 is closer to the hinge axis 21 between the middle arm piece 16 and the outer arm piece 17 than at the hinge axis 20 between the inner arm piece 15 and the middle arm piece 16.
- the middle arm piece points 16 which receives the middle piston-cylinder unit 24, at its end on the frame side a pair of side bearing plates 37 on, which is approximately transverse to the longitudinal axis of the middle Arm piece 16 and beyond and extend at their ends carry the hinge axis 20 and the articulation axis 34.
- the middle Arm piece 16 occupies a substantially vertical position and penetrates the road surface 13 (the surface of the earth). Therefore exists in the area of the middle arm piece 16 in an increased Measure the risk of the boom 14 colliding with obstacles. Although the piston-cylinder unit 24 and in particular its extended piston rod 28 extends within this range, it is protected from damage by appropriate external Effects largely protected as they come from the middle arm piece 16 is recorded and enclosed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Shovels (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
- Figur 1
- in Seitenansicht ein Baggerfahrzeug mit einem einen Grablöffel tragenden dreiarmigen Ausleger, der sowohl in der abgesenkten Grabstellung wie in aufragender Arbeitsstellung dargestellt ist, und
- Figur 2
- ebenfalls in Seitenansicht eine vergrößerte Darstellung nur des am Anbauhalter angelenkten Auslegers mit veränderter Winkelstellung der drei Armstücke und der zugehörigen Kolben-Zylindereinheiten.
Claims (8)
- Baumaschine, insbesondere Baggerfahrzeug, mit einem Rahmen (3) und einem Ausleger (14), der ein rahmenseitig angelenktes inneres Armstück (15) und ein das Arbeitswerkzeug (18) tragendes äußeres Armstück (17) sowie angelenkte Kolben-Zylindereinheiten (23 bis 25) zum einzelnen Verschwenken der Armstücke (15 bis 17) und des Arbeitswerkzeugs (18) gegenüber dem Rahmen (3) bzw. dem rahmenseitig benachbarten Armstück (15 bis 17) aufweist, wobei mindestens eine Kolben-Zylindereinheit (24) ganz oder überwiegend innerhalb eines ein Hohlprofil aufweisenden Armstücks (16) angeordnet ist, dadurch gekennzeichnet, daß der Ausleger (14) ein zwischen dem inneren Armstück (15) und dem äußeren Armstück (17) angelenktes mittleres Armstück (16) mit Hohlprofil aufweist, das die Kolben-Zylindereinheit (24) zu seinem Verschwenken aufnimmt.
- Baumaschine nach Anspruch 1, dadurch gekennzeichnet, daß die vom Armstück (16) aufgenommene Kolben-Zylindereinheit (24) im Bereich der äußeren bzw. werkzeugseitigen Hälfte des Armstücks (16) an dieses angelenkt ist.
- Baumaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß jedes eine Kolben-Zylindereinheit (24) aufnehmende Armstück (16) ein kastenförmiges Hohlprofil aufweist.
- Baumaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die vom Armstück (16) aufgenommene Kolben-Zylindereinheit (24) mit ihrer Achse zwischen der rahmenseitigen Gelenkachse (20) des Armstücks (16) und der Anlenkachse (34) der Kolben-Zylindereinheit (25) zum Verschwenken des werkzeugseitig benachbarten Armstücks (17) verläuft.
- Baumaschine nach Anspruch 4, dadurch gekennzeichnet, daß bei im wesentlichen waagerechter Ausrichtung des die Kolben-Zylindereinheit (24) aufnehmenden Armstücks (16) die rahmenseitige Gelenkachse (20) unterhalb und die Anlenkachse (34) der Kolben-Zylindereinheit (25) zum Verschwenken des werkzeugseitig benachbarten Armstücks (17) oberhalb der Achse der vom Armstück (16) aufgenommenen Kolben-Zylindereinheit (24) angeordnet sind.
- Baumaschine nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das die Kolben-Zylindereinheit (24) aufnehmende Armstück (16) rahmenseitig zwei querverlaufende seitliche Lagerbleche (37) aufweist, zwischen denen sich die Gelenkachse (20) zum rahmenseitig benachbarten Armstück (15) und die Anlenkachse (34) der Kolben-Zylindereinheit (25) zum Verschwenken des werkzeugseitig benachbarten Armstücks (17) erstrecken.
- Baumaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Ausleger (14) bei eingefahrenen Kolben-Zylindereinheiten (23 bis 25) eine im wesentlichen gestreckte und bei ausgefahrenen Kolben-Zylindereinheiten (23 bis 25) eine abgeknickte Stellung einnimmt.
- Baumaschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das innere Armstück (15) bei eingefahrener innerer Kolben-Zylindereinheit (23) im wesentlichen waagerecht vorragt und bei ausgefahrener innerer Kolben-Zylindereinheit (23) im wesentlichen senkrecht aufragt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4328449 | 1993-08-24 | ||
DE4328449A DE4328449A1 (de) | 1993-08-24 | 1993-08-24 | Baumaschine, insbesondere Baggerfahrzeug |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0640724A2 EP0640724A2 (de) | 1995-03-01 |
EP0640724A3 EP0640724A3 (de) | 1995-07-19 |
EP0640724B1 true EP0640724B1 (de) | 1999-10-27 |
Family
ID=6495908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94112370A Expired - Lifetime EP0640724B1 (de) | 1993-08-24 | 1994-08-08 | Baumaschine, insbesondere Baggerfahrzeug |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0640724B1 (de) |
AT (1) | ATE186089T1 (de) |
DE (2) | DE4328449A1 (de) |
NO (1) | NO943011L (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4798228B2 (ja) * | 2009-01-16 | 2011-10-19 | コベルコ建機株式会社 | 作業機械のブーム |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3057494A (en) * | 1959-01-30 | 1962-10-09 | Wain Roy Corp | Excavating apparatus |
US3666124A (en) * | 1970-10-15 | 1972-05-30 | Wain Roy | Lifting and excavating apparatus |
WO1981002884A1 (en) * | 1980-04-09 | 1981-10-15 | Caterpillar Tractor Co | Load carrying stucture and method of manufacture therefor |
DE8512238U1 (de) * | 1985-04-25 | 1985-08-14 | O & K Orenstein & Koppel Ag, 1000 Berlin | Mobilbagger |
EP0226657B1 (de) * | 1985-12-23 | 1990-01-31 | Kabushiki Kaisha Komatsu Seisakusho | Vorrichtung zum Antreiben des Arbeitswerkzeuges eines Baggers |
DE9003519U1 (de) * | 1990-03-27 | 1990-07-12 | Atlas Weyhausen GmbH, 2870 Delmenhorst | Ausleger für einen Löffelbagger od.dgl. |
-
1993
- 1993-08-24 DE DE4328449A patent/DE4328449A1/de not_active Withdrawn
-
1994
- 1994-08-08 EP EP94112370A patent/EP0640724B1/de not_active Expired - Lifetime
- 1994-08-08 DE DE59408858T patent/DE59408858D1/de not_active Expired - Fee Related
- 1994-08-08 AT AT94112370T patent/ATE186089T1/de not_active IP Right Cessation
- 1994-08-15 NO NO943011A patent/NO943011L/no unknown
Also Published As
Publication number | Publication date |
---|---|
DE4328449A1 (de) | 1995-03-02 |
NO943011L (no) | 1995-02-27 |
DE59408858D1 (de) | 1999-12-02 |
EP0640724A3 (de) | 1995-07-19 |
NO943011D0 (no) | 1994-08-15 |
ATE186089T1 (de) | 1999-11-15 |
EP0640724A2 (de) | 1995-03-01 |
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