EP0958439A1 - Baumaschine mit schnell zu wechselndem ausleger - Google Patents
Baumaschine mit schnell zu wechselndem auslegerInfo
- Publication number
- EP0958439A1 EP0958439A1 EP97917242A EP97917242A EP0958439A1 EP 0958439 A1 EP0958439 A1 EP 0958439A1 EP 97917242 A EP97917242 A EP 97917242A EP 97917242 A EP97917242 A EP 97917242A EP 0958439 A1 EP0958439 A1 EP 0958439A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bolt
- construction machine
- arm
- eccentric
- 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.)
- Granted
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
- E02F3/369—Devices to connect parts of a boom or an 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
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/382—Connections to the frame; Supports for booms or arms
Definitions
- the invention relates to a construction machine with interchangeable booms provided for different construction activities, in particular hydraulic excavators with a demolition boom with concrete scissors and a boom arm with digging bucket, which have a divided machine boom, the partial arms of which are detachably connected to one another via a coupling device.
- So-called demolition excavators are used to demolish residential and office buildings.
- the usual undercarriage with bodywork is equipped with an arm, 30 m high or long or even longer, with an arm, the end of which is a working tool designed as concrete or steel scissors. wearing. This makes it possible, in particular, to demolish buildings that are between other buildings and that cannot be easily demolished without such a tool, because then the neighboring buildings are also at risk.
- Such demolition excavators are also used for other work.
- So-called digging excavators or backhoe excavators are also known which, because of their design, can also dig deep into the ground with the bucket, for which purpose they are provided with an angular arm and the bucket arranged at the end and correspondingly movable.
- the invention is therefore based on the object of providing a construction machine with interchangeable cantilevers which can be changed quickly and safely on the construction site without additional units.
- the partial arm which is assigned to the hydraulic excavator is equipped with two fork-shaped bolt seats and the partial arm which is connected to the connecting arms carrying the tools is equipped with two bolts, one of which is designed as an eccentric bolt.
- the hydraulic hoses then only have to be coupled by hand in order then to be able to use the boom arm or the demolition boom accordingly for the intended work. It is also advantageous that, due to the coordinated and interconnectable parts, it is always ensured that the coupling device described also engages and holds firmly, so that the operation of the hydraulic excavator associated with a correspondingly high load is not impaired.
- the upper, fork-shaped bolt receptacle has an opening mouth that is free to the upper edge of the partial arm, while the lower bolt receptacle corresponding to the eccentric bolt has an opening mouth that is free to the coupling edge.
- the hydraulic excavator with its correspondingly short partial arm and the correspondingly open bolt receptacle can thus only be placed under the upper bolts of the other partial arm, in order to then close the coupling device by lifting the partial arm assigned to the hydraulic excavator. This takes place in that the upper fork-shaped pin receptacle detects the associated pin, while the lower pin receptacle moves into the rotating eccentric pin, so that it inevitably slides into the free opening mouth and is fixed here as described further below.
- the invention provides that the lower bolt receptacle is designed to provide a support projection on the edge facing away from the lower edge of the partial arm.
- the eccentric bolt is inserted so far that it rests with its edge against this supporting projection, so that the necessary forces can be safely transmitted during the later operation of the boom. There can be no play, which could otherwise lead to problems when operating such a hydraulic excavator.
- An expedient design of the eccentric bolt acting as a securing means is one in which it has an eccentric part which corresponds to the lower bolt receptacle and is arranged offset from the center of the bolt.
- the eccentric bolt can thus be securely fixed in the bolt receptacle without the risk that it will come loose from its fixed connection.
- the eccentric bolt can only be moved out of the bolt receptacle again, as described, only if the coupling device is removed and thus opened.
- the eccentric bolt is rotatably mounted in the partial arm.
- the sub-arm assigned to the hydraulic excavator When brought together or raised, it automatically rotates into the bolt receptacle, where it can then be additionally secured in its seat, as described further below.
- a securing arm is assigned to the eccentric part and / or the supporting part, the end arm having a bolt holding element formed in the inlet bend. tion has corresponding bore.
- the bolt holder is to be designed depending on the expediency. Usually a simple safety bolt will be inserted here to always prevent the eccentric bolt from being accidentally moved out of the bolt receptacle.
- the eccentric part and / or support part is assigned a securing arm which is detachably connected at the free end to the inlet arch or partial arm via a retaining screw.
- This design is easier to secure since the free end of the securing arm can be effectively fixed by means of the retaining screw, in particular a check of the secure fit is easier because the location of the retaining screw is easy to see.
- the safe effect of the retaining screw can be realized particularly effectively if the securing arm has a transverse bore which receives the retaining screw and which is arranged and actuated correspondingly with a screw block assigned to the inlet bend. The screw block is arranged so that the retaining screw is always under tension so that it cannot loosen, but rather always remains in engagement.
- the invention is characterized in particular by the fact that a construction machine or hydraulic excavator is created which can be used both for demolition operations and for excavating excavation pits without any problems, since the boom quickly swings out against the other boom required for the respective work can be exchanged.
- a partial arm is assigned to the hydraulic excavator which has the corresponding coupling device which corresponds to that of the corresponding partial arm of the part to be replaced in such a way that the necessary coupling work can at least be initiated by the hydraulic excavator itself, or in the end even entirely be performed.
- This has the great advantage that additional aids are not required. Rather, the hydraulic excavator can be used and after the coupling device has been completed or completed, the necessary hydraulic connections are then easily completed by hand.
- the work is much safer to perform than in the prior art and in a much shorter time, so it can be assumed that such an exit armor is always cheaper than the purchase and operation of two construction machines to be operated in parallel. Of particular note, however, is the significantly improved operational reliability.
- Fig. 2 shows a hydraulic excavator with boom arm and digging bucket
- Fig. 7 is a securing arm with a bolt bracket
- Fig. 8 a securing arm with retaining screw fixation.
- Fig. 1 shows a construction machine 1 in the form of a hydraulic excavator 2, which is equipped with a conventional chassis 3 and has a long boom 4.
- This boom 4 is a breakout boom 5, which carries a concrete scissors 6 at the end.
- the demolition boom 5 is shown both in the working position and in the rest position.
- Fig. 2 shows the same hydraulic excavator 2 with trolley 3, only that here other type of boom 4 is provided.
- This is namely a cantilever arm 7 with a digging bucket 8.
- an excavation pit can be excavated.
- FIGS. 1 and 2 A comparison of FIGS. 1 and 2 clearly shows that, owing to the very different fields of application, it is not possible to carry out different work with one and the same boom 4. Rather, the demolition boom 5 with the concrete scissors 6 can only be used for demolition work.
- FIG. 3 shows the hydraulic excavator 2 with running gear 3 which is already known from FIGS. 1 and 2, only the machine boom 10 being reproduced here from the boom 4.
- the machine boom 10 is the part of the boom that is directly connected to the hydraulic excavator 2.
- this machine boom 10 consists of two partial arms 11, 13 which are connected to one another by a coupling device 12, which is already indicated in FIGS. 1 and 2.
- the machine boom 10 is also shown divided accordingly there.
- the coupling device 12 in the embodiment shown in FIG. 3 consists of an upper bolt receptacle 15 and a lower bolt recess 18, both of which are assigned to the partial arm 13, while corresponding bolts 21 and eccentric bolts 22 are assigned to the partial arm 11.
- the upper bolt receptacle 15 is first of all equipped with an opening mouth 17 which is open to the upper edge 16 of the arm 13.
- the lower bolt receptacle 18, on the other hand, has an opening mouth 20 which is open towards the coupling edge 19.
- FIG. 5 shows the partial arm 11 and the partial arm 13 before initiating the coupling process, while FIG. 5 shows the two partial arms 11, 13 after the coupling process has been completed.
- the bolt receptacle 18 has a kind of insertion funnel 23 which leads into the bolt receptacle 18.
- the edge 25 facing away from the lower edge 24 is equipped with a support projection 26 in order to ensure that the eccentric bolt 22 is securely seated after the insertion work or the coupling work according to FIG. 5 has been completed. He can not slip out of this position even when the machine boom 10 is loaded and the forces are safely guided from one arm 11 into the other arm 13 or vice versa.
- FIG. 4 and FIG. 5 show the special design of the eccentric bolt 22, which once consists of the eccentric part 30, which is offset from the center of the bolt 31 and is connected to the actual bolt and moreover via a larger-diameter support part 32, which in turn also ensures that the eccentric pin 22 is inserted exactly into the pin receptacle 18 and without a tilt or subsequent or possible.
- FIGS. 5 and 7 show that an eccentric fit is ensured even after the eccentric bolt 22 has been inserted into the bolt receptacle 18, since the bolt center 31 and the center 33 of the bolt receptacle 18 do not match. Rather, the bolt center 31 lies clearly above the center 33 of the bolt receptacle 18. Additional securing is achieved via a securing arm 34, which is locked according to FIGS. 5 and 7 via a bolt holder 40.
- the securing arm 34 has a bore 35 which is congruent with the bolt holder 40 after the coupling work has been completed, so that, for example, a corresponding bolt can then be used or brought to cover.
- FIG. 6 shows the coupling work once again in a simplified representation, it being recognizable that the eccentric bolt 22 rotates virtually into the bolt receptacle 18 until the eccentric bolt 22 is congruently stuck in the bolt receptacle 18 in the drawing 6.
- Fig. 8 differs in so far from the fuse according to FIG. 7 in that a retaining screw 37 is provided here at the free end 36 of the securing arm 34. This retaining screw 37 is passed through a transverse bore 39 in the securing arm 34 and fixed on the screw block 38. 8 that the actual retaining screw 37 is always held under tension, so that accidental loosening of the nut of the retaining screw 37 is excluded.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Jib Cranes (AREA)
- Operation Control Of Excavators (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19608549A DE19608549C2 (de) | 1996-03-06 | 1996-03-06 | Baumaschine mit schnell zu wechselndem Ausleger |
DE19608549 | 1996-03-06 | ||
PCT/DE1997/000336 WO1997033049A1 (de) | 1996-03-06 | 1997-02-26 | Baumaschine mit schnell zu wechselndem ausleger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0958439A1 true EP0958439A1 (de) | 1999-11-24 |
EP0958439B1 EP0958439B1 (de) | 2001-01-17 |
Family
ID=7787317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97917242A Expired - Lifetime EP0958439B1 (de) | 1996-03-06 | 1997-02-26 | Baumaschine mit schnell zu wechselndem ausleger |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0958439B1 (de) |
AT (1) | ATE198778T1 (de) |
AU (1) | AU2566097A (de) |
DE (2) | DE19608549C2 (de) |
WO (1) | WO1997033049A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2344735B (en) * | 1998-12-18 | 2003-06-25 | Agco Gmbh & Co | Apparatus for detachably securing a loader attachment on a vehicle |
ES2242547B1 (es) * | 2005-02-18 | 2006-07-01 | Biurrarena, S. Coop. | Enganche rapido hidraulico del brazo de maquinaria para construccion, demolicion y obras publicas. |
JP5035122B2 (ja) * | 2008-06-04 | 2012-09-26 | コベルコ建機株式会社 | 作業機械のブーム組立構造 |
DE202011110652U1 (de) | 2011-10-05 | 2015-06-03 | Caterpillar Work Tools B. V. | Abbruchgerät |
DE102012224527A1 (de) * | 2012-12-28 | 2014-07-03 | Putzmeister Engineering Gmbh | Arbeitsgerät mit Drehkopf und Ausleger |
DE102012224529A1 (de) * | 2012-12-28 | 2014-07-03 | Putzmeister Engineering Gmbh | Arbeitsgerät mit Drehkopf-Trennstelle |
CN103850278A (zh) * | 2014-03-14 | 2014-06-11 | 上海三一重机有限公司 | 一种可变长短和重量的斗杆及挖掘机 |
JP6801692B2 (ja) * | 2018-05-23 | 2020-12-16 | コベルコ建機株式会社 | 揺動接続構造及びクレーン |
JP7183598B2 (ja) | 2018-07-12 | 2022-12-06 | コベルコ建機株式会社 | 作業機械のアタッチメント |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2938208C2 (de) | 1978-09-25 | 1985-12-05 | Heggeler, geb. Laan, Johanna Louwrina, Hengelo | Vorrichtung zum Ankuppeln eines Werkzeuges an den Ausleger eines hydraulisch betätigten Baggers od.dgl. Maschine für Erdarbeiten |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3887096A (en) * | 1973-10-11 | 1975-06-03 | Lloyd R Wieland | Quick attachment and release device |
DE3227136A1 (de) * | 1982-07-20 | 1984-01-26 | Kramer-Werke GmbH, 7770 Überlingen | Lade- und baggergeraet |
DE3831212A1 (de) * | 1988-09-14 | 1990-03-22 | Fendt & Co Xaver | Befestigung eines anbaugeraetes an einem arbeitsfahrzeug, insbesondere eines frontladers an einem ackerschlepper |
AT396491B (de) * | 1991-04-16 | 1993-09-27 | Hauer Franz | Einrichtung zur lösbaren befestigung eines arbeitsgerätes an einem fahrzeug |
JPH05239846A (ja) * | 1991-08-09 | 1993-09-17 | Jrb Co Inc | 掘削機用ブームアーム連結器 |
-
1996
- 1996-03-06 DE DE19608549A patent/DE19608549C2/de not_active Expired - Fee Related
-
1997
- 1997-02-26 EP EP97917242A patent/EP0958439B1/de not_active Expired - Lifetime
- 1997-02-26 AU AU25660/97A patent/AU2566097A/en not_active Abandoned
- 1997-02-26 AT AT97917242T patent/ATE198778T1/de not_active IP Right Cessation
- 1997-02-26 WO PCT/DE1997/000336 patent/WO1997033049A1/de active IP Right Grant
- 1997-02-26 DE DE59702940T patent/DE59702940D1/de not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2938208C2 (de) | 1978-09-25 | 1985-12-05 | Heggeler, geb. Laan, Johanna Louwrina, Hengelo | Vorrichtung zum Ankuppeln eines Werkzeuges an den Ausleger eines hydraulisch betätigten Baggers od.dgl. Maschine für Erdarbeiten |
Non-Patent Citations (5)
Title |
---|
"Bijpraten met O&K", GRONDVERZET & BOUWTRANSPORT, no. 10, 1996, pages 6, XP000667204 |
"Giekwissel O&K bekend bij C.Klein", GRONDVERZET & BOUWTRANSPORT, no. 11, 1996, pages 7, XP000667205 |
COMPONENTA BENELUX BV 'Componenta' |
COMPONENTA BENELUX BV 'Knipt staal en beton stukken goedkoper' |
M.H.C. VAN DEN HEUVEL: "Schaap met 5 Poten", BMB BOUWMATERIEEL, May 1995 (1995-05-01), pages 5, XP000667203 |
Also Published As
Publication number | Publication date |
---|---|
ATE198778T1 (de) | 2001-02-15 |
DE19608549C2 (de) | 1998-03-19 |
WO1997033049A1 (de) | 1997-09-12 |
AU2566097A (en) | 1997-09-22 |
EP0958439B1 (de) | 2001-01-17 |
DE59702940D1 (de) | 2001-02-22 |
DE19608549A1 (de) | 1997-09-11 |
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