FIELD: machine building.
SUBSTANCE: proposed is a tower crane, with a boom (6) which can be rotated by a slewing gear drive about upright slewing gear axis (5). Tower crane comprises an inoperative brake which permits and brakes rotational movements of boom (6) when the crane is an inoperative state. Inoperative brake is operated electro dynamically and comprises an electric motor of the rotary drive which can be operated as an electric motor brake.
EFFECT: blocking of the autorotation representing a danger to the stability of the crane and the possibility of free orientation of the crane in the wind are provided.
15 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CRANE | 2013 |
|
RU2631363C2 |
| METHOD OF TOWER CRANE ROTARY PART CONTROL | 2009 |
|
RU2499762C2 |
| ELECTRIC DRIVE OF LOAD-LIFTING CRANE SLEWING MECHANISM | 2005 |
|
RU2298519C2 |
| DEVICE TO CONTROL STABILITY OF STATIONARY TOWER CRANE | 2010 |
|
RU2426684C1 |
| WIND-POWER HIGH-SPEED UNIT | 1991 |
|
RU2032832C1 |
| TOWER-TYPE SUPPORT | 0 |
|
SU791874A1 |
| DRIVE FOR CRANE BOOM SWING MECHANISM | 0 |
|
SU950665A1 |
| LEAN-TO TOWER CRANE | 1997 |
|
RU2118289C1 |
| VERTICAL WIND POWER GENERATOR | 2009 |
|
RU2511985C2 |
| DEVICE TO CONTROL HORIZONTAL MOTION MECHANISM DRIVE OF MATERIALS HANDLING MACHINE | 0 |
|
SU1805093A1 |
