EP1370732B1 - Radbagger - Google Patents

Radbagger Download PDF

Info

Publication number
EP1370732B1
EP1370732B1 EP02712939A EP02712939A EP1370732B1 EP 1370732 B1 EP1370732 B1 EP 1370732B1 EP 02712939 A EP02712939 A EP 02712939A EP 02712939 A EP02712939 A EP 02712939A EP 1370732 B1 EP1370732 B1 EP 1370732B1
Authority
EP
European Patent Office
Prior art keywords
axle
lower chassis
steering
wheeled excavator
undercarriage
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
EP02712939A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1370732A1 (de
Inventor
Udo Reinecke
Dieter Brammertz
Gustav Leidinger
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.)
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel GmbH
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 O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Publication of EP1370732A1 publication Critical patent/EP1370732A1/de
Application granted granted Critical
Publication of EP1370732B1 publication Critical patent/EP1370732B1/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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units

Definitions

  • the invention relates to a wheeled excavator with an undercarriage with chassis with a front rigid axle and a rear axle Axle and one arranged on the undercarriage, with a drive unit equipped uppercarriage, wherein the Undercarriage a articulated steering with a front, the front Axle receiving undercarriage part and a rear, having the rear axle receiving undercarriage part, the pivot point of the articulated steering being significantly closer to the front axle is arranged as on the rear axle, and wherein the superstructure on the opposite the front undercarriage part arranged significantly longer rear undercarriage part is.
  • a wheeled excavator that has an undercarriage an articulated steering, wherein the pivot point of the articulated steering roughly in the center between the front axle and the rear axle is arranged.
  • the articulated steering has a fairly large bending angle on, whereby the wheeled excavator basically on tight Room is very agile. Due to the division of the undercarriage in about two equally sized undercarriage parts is the Uppercarriage of this wheeled excavator on a undercarriage part and the power plant, i. the diesel engine, on the other Carriage of the lower part arranged.
  • this wheeled excavator is indeed fundamental very mobile, but it has a relatively low Stability on, as viewed in the longitudinal direction of the Uppercarriage is arranged eccentrically on the undercarriage. This not only adversely affects the state, but in particular also when driving and when steering out, in particular at high bending angles the lateral stability increases strongly off and the wheeled excavator is pivoted in with the uppercarriage Position extremely unstable.
  • the object of the invention is therefore the maneuverability of such a wheel excavator to further improve.
  • the stability of the device is significantly improved since due to the highly eccentric arrangement of the fulcrum the articulated steering now seen the superstructure in the longitudinal direction, as with wheeled excavators without articulated steering, largely is arranged centrally. Furthermore, also eliminates the known Wheeled excavator with articulated steering required separation between superstructure and drive unit, the drive unit is in the wheel excavator according to the invention in the superstructure integrated. This is not only the stability of the wheeled excavator much improved, but it is also one All-round work possible, the superstructure can opposite the undercarriage to be turned all around without any impairment by the drive unit or visual impairments stipulate on the driver.
  • the distance the pivot point of the rear axle at least three times greater than the distance of the fulcrum from the front Axis is.
  • the articulation and the rear steering axle are kinematically positively coupled, i.e. during the steering process by the driver will be simultaneously the steerable rear axle and the articulated steering in the same direction directed.
  • the maximum bending angle the articulated steering is limited to approx. ⁇ 25 °. Thereby can still another increase in stability for reach the wheel excavator, even when cornering.
  • the maneuverability is obtained, however, as a double steering (Articulated steering and steerable rear axle) are provided.
  • a shield is arranged at the end located on the side of the front axle.
  • the shield is preferably height adjustable and pivotable. This will move the sign in the direction of travel and the unwanted lateral flow of the material is prevented. On the other hand, with an axle with axle steering the sign led obliquely to the direction of travel, whereby the material tends to lateral flow.
  • Undercarriage From a wheel excavator according to the invention is in the drawing only one designated 1 undercarriage shown.
  • This Undercarriage is divided into two, namely, it has a front Undercarriage part 2 and a rear undercarriage part 3, which are connected to each other via articulated steering, the fulcrum of this articulated steering is denoted by 4.
  • the front undercarriage part 2 takes a front axle 5 on which front wheels 6 carries.
  • the rear undercarriage part 3 takes a rear axle 7, which rear wheels. 8 wearing.
  • a shield 11 is arranged, which can be raised and lowered and swiveled to required Piston / cylinder units are designated 12.
  • the present invention is not closer.
  • the pivot 4 of the articulated steering significantly closer to the front axle 5 as arranged on the rear axle 7 is, as clearly shown in the drawing.
  • the distance between the pivot point 4 and the front axle 5 is with a referred to, while the distance of the pivot point 4 of Articulated steering and the rear axle 7 denoted by b are.
  • the ratio b to a is preferably greater than 3, i. the distance b of the rear axle 7 to the pivot point 4th is at least three times larger than the distance a between the front axle 5 and the pivot point 4th
  • the rear undercarriage part 3 is clear longer than the front undercarriage part 2, which makes it possible the complete superstructure of the wheel excavator, which in the Drawing is not shown, along with the same not shown drive unit on the rear undercarriage part 3 to arrange.
  • a turntable 13 indicated.
  • the front axle 5 than with the Frame firmly connected rigid axle is formed while the rear axle 7 preferably as a steerable swing axle is formed, preferably in the form of a steering knuckle axis.
  • this forced coupling is in the embodiment of a linkage 14 and an intermediate piston / cylinder unit 15 formed, wherein the linkage 14 on the one at the front Undercarriage part 2 and on the other to a steering linkage 16th the rear steering axle 7 is articulated.
  • the piston / cylinder unit 15 By operation the piston / cylinder unit 15, the front wheels 6 and the rear wheels 8 deflected in the same direction. This deflected position of the complete front undercarriage part 2 and the rear wheels is dashed in the drawing indicated.
  • the invention is not limited to the illustrated embodiment limited. Further embodiments are possible without leaving the basic idea. So, for example the articulated steering itself and the forced coupling (Linkage 14) with the steering linkage 16 of the rear steering axle 7 can also be realized in other ways, essential is the arrangement of the pivot point 4 of the articulated steering, which a longitudinally central arrangement of the Upper carriage on the undercarriage, and only on the rear Undercarriage part 3 allows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Road Repair (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
EP02712939A 2001-03-20 2002-03-08 Radbagger Expired - Lifetime EP1370732B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10113340A DE10113340A1 (de) 2001-03-20 2001-03-20 Radbagger
DE10113340 2001-03-20
PCT/EP2002/002557 WO2002075060A1 (de) 2001-03-20 2002-03-08 Radbagger

Publications (2)

Publication Number Publication Date
EP1370732A1 EP1370732A1 (de) 2003-12-17
EP1370732B1 true EP1370732B1 (de) 2004-09-29

Family

ID=7678124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02712939A Expired - Lifetime EP1370732B1 (de) 2001-03-20 2002-03-08 Radbagger

Country Status (5)

Country Link
EP (1) EP1370732B1 (es)
AT (1) ATE278071T1 (es)
DE (2) DE10113340A1 (es)
ES (1) ES2224055T3 (es)
WO (1) WO2002075060A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005035882A2 (en) * 2003-10-03 2005-04-21 The Charles Machine Works, Inc. Multi-function work machine
DE102016105278B3 (de) 2016-03-22 2017-06-08 Klaus Jourdan Geschütztes Radfahrzeug

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819632C (de) * 1949-10-30 1951-11-05 Erhard Lauster Tiefbaufahrzeug fuer verschiedene Verwendungszwecke
US3347577A (en) * 1964-12-24 1967-10-17 Allis Chalmers Mfg Co Pivot construction
DE1265048B (de) * 1966-03-15 1968-03-28 Int Harvester Co Lenkung fuer Erdbewegungsfahrzeuge, insbesondere Schaufellader
US3977547A (en) * 1971-06-07 1976-08-31 Holopainen Vaino J Material handling apparatus
US3771241A (en) * 1972-05-05 1973-11-13 Koehring Co Steering mechanism for trencher
US4565257A (en) * 1984-02-08 1986-01-21 J. I. Case Company Multi-mode steering system
JPS61126230A (ja) * 1984-11-21 1986-06-13 Toyoda Autom Loom Works Ltd 荷役作業車におけるエンジンストツプ防止装置
US4802545A (en) * 1986-10-15 1989-02-07 J. I. Case Company Steering control system for articulated vehicle
GB8810886D0 (en) * 1988-05-09 1988-06-15 Knackstedt J S Material handling machine
DE4104283A1 (de) * 1990-02-15 1991-08-22 Zahnradfabrik Friedrichshafen Arbeitsfahrzeug
DE4137382C1 (en) * 1991-11-13 1993-04-29 Karl Schaeff Gmbh & Co, 7183 Langenburg, De Utility site-work vehicle - is articulated with fixed wheels on front carriage and steering wheels on rear carriage.
DE19720336A1 (de) * 1997-05-15 1998-11-19 Johannes Hermann Bergmann Kombinations-Arbeitsfahrzeug mit schwenkbarem Fahrerstand
GB2356611B (en) * 2000-10-27 2003-08-20 Translift Engineering Ltd Lift truck

Also Published As

Publication number Publication date
EP1370732A1 (de) 2003-12-17
ATE278071T1 (de) 2004-10-15
ES2224055T3 (es) 2005-03-01
WO2002075060A1 (de) 2002-09-26
DE10113340A1 (de) 2002-10-10
DE50201161D1 (de) 2004-11-04

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