FIELD: transport.
SUBSTANCE: invention relates to hoisting device. Lifting crane comprises chassis, moving elements for engagement with soil, rotary platform coupled with said chassis to turn thereat. Rotary platform comprises load-bearing frame of counterweight, boom gimbal mounted at rotary platform front section, boom lifting system connected with rotary platform and boom to vary boom angle relative to rotary platform turn plane. Counterweight assembly is supported by load-bearing frame to displace relative to counterweight bearing frame. Counterweight assembly drive arranged between rotary platform and counterweight assembly displace said assembly towards and from said boom. This crane is configured to create the moment developed by counterweight assembly acts on rotary platform via the counterweight bearing frame. This crane can have the pole coupled with rotary platform, counterweight bearing beam coupled to be displaced together with rotary platform. Besides it comprises the element under tension connected between said pole and counterweight bearing beam. Counterweight assembly is supported by load-bearing frame to displace relative to counterweight bearing frame.
EFFECT: perfected design of counterweights.
95 cl, 62 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SELF-PROPELLED HOISTING CRANE AND METHOD OF ITS ASSEMBLY (VERSIONS) | 2008 |
|
RU2476371C2 |
| SELF-PROPELLED CRANE AND METHOD OF ITS OPERATION | 2008 |
|
RU2467946C2 |
| SELF-PROPELLED HOISTING CRANE AND METHOD OF ITS DISASSEMBLY, TRANSPORTATION AND ADJUSTMENT | 2009 |
|
RU2514561C2 |
| CRANE | 2010 |
|
RU2532201C2 |
| SELF-PROPELLED LIFT CRANE AND METHOD OF ITS OPERATION | 2007 |
|
RU2464221C2 |
| LIFTING CRANE GUYS EXPANDER AND METHOD OF ITS ADJUSTMENT | 2010 |
|
RU2532204C2 |
| SELF-PROPELLED HOISTING CRANE | 2007 |
|
RU2445251C2 |
| COMPRESSIBLE STOPPER FOR USE IN LIFT CRANE AND CRANE FITTED WITH IT | 2010 |
|
RU2544255C2 |
| JOURNAL AND SELF-PROPELLED LIFTING CRANE WITH SAID JOURNAL | 2009 |
|
RU2509712C2 |
| METHOD FOR ASSEMBLING, DISMANTLING AND TRANSPORTATION OF MOBILE CRANE | 2010 |
|
RU2542828C2 |
