DE1919759A1 - Mobile hydraulic crane - Google Patents

Description

Orenatein-Ioppel and Itibaoker Meeohlnenbau Aktiengesellschaft 1000 Berlin 20, Brunabütteler Damm 144-208

PAT 968 Mobile hydraulic crane

Dl * Invention relates to a mobile hydraulic crane old height-▼ dividable and teleakop-like νextensible lifting device, whereby the height adjustment of the Telaakopaualegera takes place in this way » dad a round boom on the superstructure and the telescopic boom on the free end of the Grundaualegera aohwenkbar aind.

Such, hydrauliaoh operated Hebetlnriobtungen lind often _f of the superstructure can be up "u 360 ° Ain rotatable about a vertical Aohae stored. When adjusting the height dea free BNDES of the telescopic boom, it is crucial, old mögliohat low, given the dimensions of Grundaueleger _{and telescopic boom lift of the hydraulic cylinder maximum heights and widths trrtiohtn au. Aufierdem βoll a horizontal displacement of the load hanging on the telescopic boom can take place at different heights.

The fulfillment of these requirements depends on how the dtr The boom and hydraulic cylinder serving for height division are arranged one above the other and are articulated on the superstructure. Is 1st known to lower the hydraulic shaft, which serves to operate the telescopic boom, to the pivot point of the Orundaualegers on the superstructure, whereby the point of application is the rod

BATH ORIGINAL

Hydrauliksyllndtrs is designed as a 'pivot point and is arranged on the telescopic boom. If in an aolohan arrangement Iedlglioh dar örundaualeger fluctuates, the angle between the telescopic boom and the basic boom remains constant, i.e. the Telescopic boom according to line, depending on the örund boom barn, a downward-facing barn. To still aina large hook height with simultaneous large overhang au erraiohan, the Taleskopaualegsr must be swayed steeply upwards in its steeply upward slope, when the base of the base in • is in the highest position. This is a relatively large cylinder stroke. In the known arrangements, however, there is a larger cylinder stroke due to the lack of a lever Only with greater effort can a great deal be achieved if the position of the leleakapauspLegers is only erraioht if the basic uslagar with extended ai faleakep boom cylinder ■ urüokgesoh is fluctuating. But this creates a loss Leathook height and extension width ·. Another disadvantage It is in the fact that the telescopic boom bala upright that Orundaualeger «the driver's cab biw. other parts of the year aaugea beaohKdlgen can if not glaioheaitig during the AifriohtTorgangae of the Grundaual camp of the Hydraullkayllnder des Telescopeuslsgers is extended.

The invention ran the task of "ugrunda" under ausnutisusig i§r bai a "Fahrsaug gagebanen limited dismantling to a Bugllehat largea Laelhakanhöha and Ausladungswaite au rraiahen and au vemaiden _f dad the Telaakopausiagar auoh

ORIGINAL

009847/0292

against unwanted loading of a hydraulic cylinder know part of the vehicle »

This object is achieved according to the invention in that the articulation of the hydraulic cylinder used to pivot the telescopic arm takes place on the superstructure in the foot articulation point in such a way that that this, the articulation point d, it Gkrundauslegers on the superstructure, the articulation point of the telescopic boom on the Grundaueleger and the articulation point of the hydraulic cylinder on the rod side Telescopic boom form a ßelenkriereok.

This training, in which the mentioned points of articulation form a parallelogram as well as any animal ok allows, in a further embodiment of the invention, a simplification of the lifting device in that the height adjustment of the telescopic boom of the swiveling base hoist and a push rod arranged between the articulation point on the superstructure and the articulation point on the telescopic boom he follows.

Further details of the invention emerge from the following Description and from the drawings. An exemplary embodiment the invention is illustrated in the drawing and will be described below. It's beige

flg. 1 of the Eranfataritug in side view ait örundausleger in hoist-pivoted condition and telescopic boom in three different positions, I, II

¹¹¹ O09847 / 0292 bad or _IQ inal

fig, 2 a section with hour lever

cantilever articulated Sotiuhetang © with Isonsten « the length «;

Fig. 3 shows a deal with ßnmdiiuel§g§r uac! ear Tel®s «KopauBleger articulated, in the IKng« - push rod?

Fig. 4 shows a detail with ßrundaualeger xxnä

euBleger, as well as several on Oberwegen eng © ordnet®

Anlenkpunktc for the telescopic boom, bmr. the Push rod ^ with constant or changeable length.

This is used as a carrier for the Cran ditnande crane vehicle 1 in its essential parts from Kwei rubber-tyred axles 2-, the driver's cab 3 and the driver ugrahraen 4. For support hydraulic supports 5 are used for crane operation The vehicle frame 4 is the superstructure 6 around a vertical axis rotatably mounted. On the superstructure * 6 let in the articulation point 8 Is the primary boom 9 hinged? this is actuated by means of the cylinder 10, the cylinder 10 is located on the upper carriage 6 in the pivot point 11 and at the Qrundaualeger 9 in the pivot point hinged. At the free brew the Ctrundaualegers 9 is in that The pivot point 13 of the telescopic boom 14, which is actuated by the hydraulic cylinder 15, is articulated. This is at dam Obarwa « gen 6 In dam from the pivot point 8 different pivot point 16 and

BATH ORIGINAL '

009847/0292 - 5 -

on the telescopic boom 14 in the pivot point 17 angalankt. At the free Endθ of Taleakopauslagera 14, the is operating the crane hook 18 serving rollers "19 are mounted instead dea hydraulic cylinder 15 for operating the telescopic boom and a constant in its length push rod 21 or eina can be used in their Läng · changeable · Sohubatange 22nd

The mode of operation is as follows

Aus? Lg. 1 1st eraiohtlioh that the telescopic boom 14 naoh Hoohsohwankan the Grundualeger a 9 automatically assumes the position I "when the hydraulic cylinder 15 is not actuated, ie not changed in its length. Duron Beaufeohlagung dea the actuating dee Teleekopaualegera serving Hydraulikry assuage 15 or by adjusting the in Läng · τtränderbaren Sohubatange 22, the position, the Teleekopeual · - screened 14 such changed warden, the free · end dea Telea kopaualegera dad different Hoh · «* and sway achieved. If the position of the pivot points 13 of the teleakopaual agar is changed by the pivoting of the orundary boom 9, the telescopic boom 14 with one free end achieves different rest and widths. The telescopic boom 14 can be slotted horizontally (flg. 1 II). The Mxlmala horizontal height is dependent on the height of the pivot point 8 the base, "ualeger" 9 · ■ uppercarriage 6 "the length of the orundeutlegen 9 and the angle oC as the size and - boom and uppercarriage. Act" a beabaiohtlgt, the telecopaualeger 14 often horizontally divide into different Buhe tu,

0098A7 / 0292

. . 'BAD ORfGi ¹ NAL

then this can be parallel. Arrangement of the hydraulic cylinder 15 ssum Grundauelagar 9 are reached, wobai only the The Ealeakopaualager should be fluctuated in the basic outlay 14 can only be adjusted horizontally, ao is sufficient aur Yarsinfaohung the arrangement of the goal wall elnar Sohubatanga 21 anatalla the ilydraullkayllndere 15 arranged parallel to the örundaualagar 9 bew, for the length-adjustable push rod 22 or dia In the length of the constant lifting rod 21 different attachment points 16, 16a, 16b, I60 (Pig. 4) provided on the superstructure 6, 00 can the angles of inclination that the telescopic boom 14 when pivoting des (Irnndaualegara 9 occupies, duroh different choice of Articulation points are changed.

BATH ORIGINAL

009847/0292

Claims (4)

Sohutgansp r.ü ο he 1 »Mobile hydraulic crane with height-adjustable and telescopic type extendable lifting device, with the Huirtr-Btellung The telescopic boom is carried out in such a way that a basic boom on the superstructure and the telescopic boom on the., free end of the base boom are pivotable, d a by characterized in that the articulation of the "pivoting of the telescopic boom (H) is used Hydraulic cylinder (15) on the upper carriage (6) in the foot articulation point (16) takes place in such a way that this, the articulation point (8) of the base boom (9) on the upper carriage (6), the Articulation point (13) of the telescopic boom (H) on the main boom (9) and the articulation point (17) on the rod side of the hydraulic cylinder (15) an articulated quadrant on the telescopic boom (H) form. 2. Mobile hydraulic crane according to claim 1, characterized daduroh, that the height adjustment of the telescopic boom (14) by means of the swiveling base boom (9) and one swisohen the articulation point (16) on the superstructure (6) and the articulation point (17) arranged on the telescopic boom (H) Push rod (21) takes place. 3. Mobile hydraulic kmn according to Anspruoh 1, daduroh characterized, that the height adjustment of the telescopic boom! (H) BATH ORIGINAL 4.7 / ^ 29 2 - - θ - by means of the swiveling base boom (9) and one in the length of the adjustable push rod (22) takes place. 4. Mobile hydraulic crane naoh claims 1 to 3 »characterized in that the articulation of the pivoting of the telescopic boom (14) serving hydraulic cylinder (15) or the articulation of the Sohubstange (21) or the articulation the length-adjustable push rod (22) each at its base on one of several on the upper carriage (6) arranged from the articulation point (8) of the main boom (9) various articulation points (16a, 16b) on the superstructure (6) he follows. 0098A7 / 0292 Blank page