| 摘要 |
FIELD: process engineering.SUBSTANCE: crushing system comprises first and second crushing surface to crush material there between. Additionally, it comprises hydraulic system for control over clearance between said first and second crushing surfaces by regulating first crushing surface position with the help of hydraulic cylinder. Said cylinder is connected with first crushing surface. Additionally, hydraulic system comprises accumulator communicated with hydraulic cylinder by working fluid pipe. Accumulator has preloading pressure, at least, 0.3 MPa lower then mean operating pressure of hydraulic cylinder.EFFECT: reduced risks of fatigue failure, higher load at sufficient life.10 cl, 14 dwg |
