FIELD: lifting devices.
SUBSTANCE: invention relates to lifting devices. The crane contains a base (110), a support boom (12), a lifting boom (14), a folding boom (20), a lifting cylinder (24) and a folding cylinder (30). The lifting boom (14) contains the first pivot point (36) for connecting the support boom (12) with the lifting boom (14), the second pivot point (38) for connecting the lifting cylinder (24) with the lifting boom (14) and the third pivot point (40 ) to connect the folding cylinder (30) to the lifting boom (14). The lifting boom (14) additionally contains a hollow cast connecting element (42) located at the first end (16) of the lifting boom (14) , while at least the first pivot point (36) and the second pivot point (38) are located in the connecting element (42).
EFFECT: durability of the structure and simplified manufacturing are achieved.
15 cl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| LIFTING CRANE AUTOMATICALLY FOLDING BOOM | 1992 |
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|
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| SELF-PROPELLED LIFT CRANE AND METHOD OF ITS OPERATION | 2007 |
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| MOVABLE TELESCOPIC LIFTING CRANE | 2011 |
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| DEVICE FOR LIFTING CRADLE | 1983 |
|
RU2038286C1 |
| AUTOMATED MOUNTING CRANE WITH SELF-FOLDING BOOM | 1996 |
|
RU2161119C2 |
| LIFTING CRANE CONTAINING FIRST MAST EQUIPPED WITH TILTABLE UPPER PART | 2018 |
|
RU2765755C2 |
