Flexible mounting structure for crankshaft of medium-speed diesel engine

• Main Authors: ZHANG CHANGHUI, MA YUE, XU XIAOPENG, ZOU HAO, WANG LIANGBIN, LU NING
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BEARINGS; BLASTING; COMBUSTION ENGINES; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAULING; HEATING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIFTING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The invention discloses a medium-speed diesel engine crankshaft flexible mounting structure which comprises a hydraulic flexible supporting structure, the hydraulic flexible supporting structure is higher than a bearing bush, the hydraulic flexible supporting structure comprises nylon rollers and a hydraulic piston, the two nylon rollers are fixedly connected with the hydraulic piston, and the two nylon rollers are fixedly connected with the hydraulic piston. In a working state, the crankshaft falls on the hydraulic flexible supporting structure after being lifted, so that the impact of the crankshaft is controlled, and a bearing bush is not damaged. When the hydraulic mechanism relieves pressure, the crankshaft can fall slowly, and therefore zero impact on a bearing bush in the crankshaft installation process is achieved. According to the invention, the operation requirement on an operator in the installation process of the crankshaft of the medium-speed diesel engine is reduced to the greatest extent, and t