FIELD: protection of dragline excavator haulage ropes against breakage. SUBSTANCE: loads of haulage and holding ropes are measured, their ratio is determined, compared with allowable ones, and in case of deviation a signal is sent to drive. Signal of actual load of haulage rope is additionally compared with signal; of allowable load of the haulage rope and in case of their equality signal is sent to drive. Device for realization of given method has load cell of haulage rope, comparator, whose first input is connected to output of load cell of haulage rope, and the second input, to DC voltage source. Comparator output via amplifier is connected to input of electromagnetic brake located on flanges of hauling winch drum. EFFECT: enhanced reliability. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND APPARATUS TO PROTECT MINE LIFTING AGGREGATE FROM PULLING ROPES LOOSE | 1992 |
|
RU2031830C1 |
| DEVICE TO PROTECT MINE HOIST FROM HAULING ROPE CREEPING | 1992 |
|
RU2061643C1 |
| MINE HOIST SERVICE BRAKING CONTROL METHOD | 1992 |
|
RU2041152C1 |
| DEVICE TO CONTROL MOVEMENT OF DRAGLINE EXCAVATOR BUCKET | 2010 |
|
RU2443829C1 |
| DEVICE FOR PROTECTING MINE HOISTING PLANT AGAINST LAP OF HAULAGE ROPES | 1991 |
|
RU2011626C1 |
| SAFETY ARRANGEMENT FOR DRAGLINE BOOM | 0 |
|
SU1194972A2 |
| OVERLOAD PROTECTION DEVICE FOR A DRAGLINE | 0 |
|
SU1671784A1 |
| PROTECTION DEVICE FOR DRAG-LINE EXCAVATOR BOOM | 0 |
|
SU787562A1 |
| DEVICE FOR CONTROL OF DRAGLINE EXCAVATOR IMPLEMENT | 2006 |
|
RU2332542C1 |
| SYSTEM FOR AUTOMATED CONTROL OF TRANSPORTATION MOTION OF DRAG-LINE EXCAVATOR BUCKET | 0 |
|
SU1788163A1 |
