FIELD: materials handling facilities.
SUBSTANCE: invention relates to methods of control and overload and failure protection of boom load-lifting cranes. According to proposed method, first and second threshold levels are set for at least one parameter characterizing load, geometry or operating conditions of device. Provision is made for checking said parameter in operation and comparing its value with first threshold level, forming of device control signal if parameter exceeds first threshold level, comparing parameter with second threshold level and forming signal to prohibit operation of device or its component part if second threshold level is exceeded. Moreover, rate of parameter changing is revealed, and first threshold level is set depending on rate of change of said parameter or reduced inertia moment or reduced mass of moving device or its component part.
EFFECT: improved efficiency of limiting of device parameters at dynamic operation, improved operating characteristics of device.
13 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LOAD-LIFTING CRANE CONTROL METHOD | 2005 |
|
RU2305063C2 |
| METHOD TO PROTECT BOOM LIFTING CRANE FROM OVERLOAD (VERSIONS) | 2005 |
|
RU2282577C2 |
| SAFETY SYSTEM OF ELECTRICALLY DRIVEN HOISTING MACHINE | 2008 |
|
RU2381171C1 |
| PROTECTION SYSTEM FOR LIFTING CRANE (VERSIONS) | 2006 |
|
RU2335451C1 |
| BOOM LOAD-LIFTING CRANE OVERLOAD PROTECTION METHOD (VERSIONS) | 2006 |
|
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| HOISTING OR CONSTRUCTION MACHINE LOAD LIMITER (VERSIONS) | 2010 |
|
RU2448037C1 |
| LOAD-LIFTING CRANE PROTECTION METHOD | 2004 |
|
RU2271985C2 |
| METHOD FOR CONTROLLING OF LOAD-LIFTING MECHANISMS | 2003 |
|
RU2260560C2 |
| SAFETY DEVICE AND RECORDING METHOD FOR WORKING CONDITIONS OF LIFTING MACHINE | 2010 |
|
RU2442742C1 |
| SAFETY SYSTEM FOR CONSTRUCTION EQUIPMENT (VERSIONS) | 2010 |
|
RU2452683C2 |
