EP0685422B1 - Vorrichtung zum Aufrichten und Ausrichten eines Leichtkranes - Google Patents
Vorrichtung zum Aufrichten und Ausrichten eines Leichtkranes Download PDFInfo
- Publication number
- EP0685422B1 EP0685422B1 EP95103522A EP95103522A EP0685422B1 EP 0685422 B1 EP0685422 B1 EP 0685422B1 EP 95103522 A EP95103522 A EP 95103522A EP 95103522 A EP95103522 A EP 95103522A EP 0685422 B1 EP0685422 B1 EP 0685422B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- base frame
- supporting tube
- working cylinder
- crane
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
Definitions
- the invention relates to a device for installation and aligning a light crane, which consists of a Base frame, a vertical supported by the base frame Pillar, a boom supported by the pillar as well as a hydraulically operated working cylinder exists, with the working cylinder on both Column and attached to the base frame of the light crane is.
- EP-A-0 473 518 is a hydraulically operated Working cylinder known, both on the column as is also attached to the base frame.
- the disadvantage here is that the position of the crane at one Failure of the working cylinder is not sufficiently secured and the working cylinder does not turn off leaves.
- the invention is therefore based on the object simply constructed and operated device for To set up and align a light crane, with the sufficient stability of the Cranes can be guaranteed.
- the object is achieved in that one arranged parallel to the working cylinder, in her Adjustable lengthwise and to the lifting height of the Adjustable cylinder as a combination with the working cylinder both on the column and is arranged on the base frame of the light crane.
- the parallel combined with the working cylinder as a pair Support secures the position of the crane itself when the hydraulic system of the working cylinder fails or turned off.
- the crane is in the working position without manual effort or in transport position and is securely protected against collapsing on all sides.
- the displacement or adjustment is telescopic in the longitudinal direction possible in a very simple manner and the adaptation to the respective lifting height of the working cylinder practicable.
- This guide piece has the function of Limitation of the adjustability of the inner, in the outer Support pipe guided, support pipe. On the other hand it is used for the exact guidance of the inner support tube and also as a cover for the outer support tube.
- a development of the invention is that in Inside the outer support tube an adjusting nut is guided, which is axially with an internal thread and is provided radially with a continuous slot.
- This slot offers the possibility that the already Plug pins described above in this intervene and the subsequent locking of the support and thus lock the crane position can.
- the outer shape of the adjusting nut is the inner one Adjusted contours of the outer support tube. she serves to accommodate the inner support tube.
- the adjusting screw can have a radial through hole be provided so that in this hole also the socket pin already described Locking the support can intervene later.
- the adjusting screw can be adjusted so that the through hole of the adjusting screw with the Elongated hole of the adjusting nut and one of the two Through holes of the outer support tube covers and thus the socket pin through all three holes inserted at the same time, the locking of the support now guaranteed.
- the through hole at the top of the outer support tube serves to lock in the working state, i.e. when the inner support tube including the screwed adjusting nut and adjusting screw is extended and the crane is stationary.
- the Through hole at the lower end of the outer support tube serves for locking in the transport state (Retracted inner support tube, i.e. when the crane is folded).
- the adjusting screw is designed so that with an external element (e.g. key), the adjustment of the adjusting screw can be carried out can.
- the set Position of the adjusting screw in the adjusting nut undergoes an additional fixation. For example by an adjusting nut from the outside penetrating screw.
- the light crane shown in Fig. 1 consists of the Main components of base frame 1, which is a welded construction consists of steel profiles, with a steerable Trailer towing device provided and by means of wheels is mobile, one attached to the base frame 1, vertical column 2 and a swiveling boom 3, with a longitudinally displaceable, electric motor operated trolley 3, to accommodate a Crane hook.
- the column 2 is with the base frame 1 by a combination from a support adjustable in its longitudinal direction 4 and a motor-driven hydraulic Working cylinder 5 connected.
- the support 4 and the working cylinder 5 are as Combination as shown in Fig. 2, in the same Axle articulated parallel in joint storage one bolt 6 each on the column 2 and on the base frame 1 attached.
- the parallel support 4 fulfills two Functions. On the one hand, it serves both in work and also in the transport position of the stabilization and Attachment of the components pillar 2 with bracket 3 and the base frame 1 of the light crane.
- the support 4 is used for precise alignment the components of the crane in compliance with the required tolerances between boom 3 and Base frame 1 or column 2 to base frame 1.
- the support 4 is, as can be seen from FIG. 3, in two parts, consisting of an outer support tube 7 and an inner, in this guided support tube 8, in its longitudinal direction slidable to the To be able to follow movements of the working cylinder 5.
- the one made from square section steel outer support tube 7 is at the lower end by means of the bolt 6 articulated to the base frame 1.
- the outer support tube 7 At the upper end is the outer support tube 7 with a Guide piece 9 which has a bore in the axial direction for receiving the inner support tube 8, locked.
- the Guide piece 9 for example made of plastic manufactured socket 10 may be inserted.
- the guide piece 9 can be in the outer support tube expediently be welded in.
- the inner support tube consisting of a tubular profile 8 is at the lower end with an external thread and on provide a through hole at its upper end. The attachment is made by means of this hole the column 2 through the connecting bolt 6.
- the one located at the lower end of the inner support tube 8 Thread is adjusted with an adjusting nut 11 screwed.
- the threaded hole serves on the one hand, as already above mentioned, for receiving the inner support tube 8 on upper end of the adjusting nut 11.
- the other is in the threaded hole at the bottom the adjusting nut 11 is screwed an adjusting screw 12.
- the adjusting nut 11 is transverse to its longitudinal axis also with a continuous slot 13 for receiving a plug pin 14 provided.
- the adjusting nut 11 has a square, the inner dimension of the outer support tube 7 adapted cross section, to screw in the support tube 8 and do not twist when adjusting the support 4 to be able to. This ensures that a radial through hole 15 in the adjusting screw 12 is present, and at both ends of the outer support tube 7 also existing continuous radial bore 16, and the slot 13 of the Adjustment nut 11 are superimposed and so that the plug pin 14 locks the support 4.
- reinforcement plates 17 welded around the bores 16.
- the holes are therefore less subject to wear when locking with locking pins 14.
- the device according to the invention works as follows:
- the inner support tube 8 still is retracted by turning the adjusting screw 12 by means of the special key mentioned above, whose pins in the holes of the adjusting screw 12th be introduced, the horizontal position of the column 2 set to base frame 1.
- the adjusting screw 12 adjusted until its hole 15 in the area of the elongated hole 13 of the adjusting nut 11 devices.
- the screws are unscrewed or screwed in inner support tube 8 in the thread of the adjusting nut 11.
- the change in length of the inner support tube 8 allows the alignment of Light cranes, which was also carried out very effectively can be, if in the course of the operation of the Light crane deviations caused by wear from the vertical position of column 2 with Boom 3 to the base frame 1 must be corrected.
- the individual parts of the support 4 can be inexpensive be made of structural steel, which is then a Surface treatment by galvanizing can experience.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Control And Safety Of Cranes (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Description
- Fig. 1
- Die Anordnung der erfindungsgemäßen Vorrichtung im technischen System eines Leichtkranes
- Fig. 2
- ein Schnitt entlang der Linie I-I gemäß der Fig. 1
- Fig. 3
- eine Komplettdarstellung der erfindungsgemäßen Abstützung.
Claims (10)
- Vorrichtung zum Aufstellen und Ausrichten eines Leichtkranes, welcher aus einem Grundgestell (1), einer vom Grundgestell (1) getragenen vertikalen Säule (2), einem von der Säule (2) aufgenommenen Ausleger (3) sowie einem hydraulisch betriebenen Arbeitszylinder (5) besteht, wobei der Arbeitszylinder (5) sowohl an der Säule (2) als auch am Grundgestell (1) des Leichtkranes angebracht ist, dadurch gekennzeichnet, daß eine zum Arbeitszylinder (5) parallel angeordnete, in ihrer Längsrichtung verstellbare und an die Hubhöhe des Arbeitszylinders (5) anpaßbare Abstützung (4) als Kombination mit dem Arbeitszylinder (5) sowohl an der Säule als auch am Grundgestell (1) des Leichtkranes angebracht ist.
- Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der mit der Abstützung (4) kombinierte Arbeitszylinder (5) durch je einen Verbindungsbolzen (6) mit der Säule (2) sowie dem Grundgestell (1) des Leichtkranes gelenkig verbunden sind. - Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet, daß die Abstützung (4) aus einem äußeren Abstützrohr sowie einem, in diesem geführten, inneren Abstützrohr (8) besteht. - Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß das äußere Abstützrohr (7) an seinen beiden Enden jeweils eine radiale Durchgangsbohrung (16) zur Aufnahme eines Steckbolzens (14) aufweist. - Vorrichtung nach Anspruch 3 und 4,
dadurch gekennzeichnet, daß die obere Stirnseite des äußeren Abstützrohres (7) mit einem inneren Führungsstück (9) verschlossen ist. - Vorrichtung nach Anspruch 3 und 4,
dadurch gekennzeichnet, daß im Inneren des äußeren Abstützrohres (7) eine Verstellmutter (11) geführt ist, welche axial mit einem Innengewinde und radial mit einem durchgehenden Langloch (13) zur Aufnahme des Steckbolzens versehen ist. - Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß das innere Abstützrohr (8) an seinem unteren Ende ein Außengewinde aufweist, welches sich von oben in das Innengewinde der Verstellmutter (11) schrauben läßt. - Vorrichtung nach Anspruch 7,
dadurch gekennzeichnet, daß das Innengewinde der Verstellmutter (11) länger als das Außengewinde des inneren Abstützrohres (8) ausgebildet ist. - Vorrichtung nach Anspruch 6 und 7,
dadurch gekennzeichnet, daß in das Innengewinde der Verstellmutter (11) von unten eine Einstellschraube (12) mit einer radialen Durchgangsbohrung (15) zur Aufnahme des Steckbolzens (14) eingeschraubt ist. - Vorrichtung nach den Ansprüchen 4, 6 und 9,
dadurch gekennzeichnet, daß sich die Einstellschraube (12) derart verstellen läßt, daß sich die Durchgangsbohrung (15) der Einstellschraube (12) mit dem Langloch (13) der Verstellmutter (11), sowie einer der Durchgangsbohrungen (16) des äußeren Abstützrohres (7) zur Aufnahme des Steckbolzens (14) deckt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9407282U | 1994-05-02 | ||
DE9407282U DE9407282U1 (de) | 1994-05-02 | 1994-05-02 | Vorrichtung zum Aufrichten und Ausrichten eines Leichtkranes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0685422A1 EP0685422A1 (de) | 1995-12-06 |
EP0685422B1 true EP0685422B1 (de) | 1999-08-25 |
Family
ID=6908127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95103522A Expired - Lifetime EP0685422B1 (de) | 1994-05-02 | 1995-03-11 | Vorrichtung zum Aufrichten und Ausrichten eines Leichtkranes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0685422B1 (de) |
AT (1) | ATE183719T1 (de) |
DE (2) | DE9407282U1 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1556356B2 (de) * | 1965-12-06 | 1971-10-14 | Liebherr, Hans, E h Dr Ing , 7950 Biberach | Strassenverfahrbarer kran |
DD224012A1 (de) * | 1984-04-23 | 1985-06-26 | Schwermasch Kirow Veb K | Wippwerk fuer auslegerkrane, insbesondere mit teleskopausleger |
DE8904394U1 (de) * | 1989-04-07 | 1989-06-08 | Bauer Spezialtiefbau GmbH, 8898 Schrobenhausen | Kran-/Bohrgerätewagen |
FR2665429B1 (fr) * | 1990-07-31 | 1992-10-02 | Cadillon Sa | Grue a montage automatise, avec fleche repliable lateralement. |
FR2682096B1 (fr) * | 1991-10-02 | 1993-12-03 | Potain | Grue a tour repliable automatiquement. |
-
1994
- 1994-05-02 DE DE9407282U patent/DE9407282U1/de not_active Expired - Lifetime
-
1995
- 1995-03-11 EP EP95103522A patent/EP0685422B1/de not_active Expired - Lifetime
- 1995-03-11 AT AT95103522T patent/ATE183719T1/de not_active IP Right Cessation
- 1995-03-11 DE DE59506668T patent/DE59506668D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0685422A1 (de) | 1995-12-06 |
ATE183719T1 (de) | 1999-09-15 |
DE59506668D1 (de) | 1999-09-30 |
DE9407282U1 (de) | 1994-07-14 |
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