Resistance increasing type squeeze film damper with bosses on outer ring or shaft neck

• Main Authors: ZHOU HAILUN, AI YANTING, ZHANG CHENSHUAI, ZHANG MING
• Format: Patent
• Language: Chinese; English
• Published: 25.01.2017
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

Provided is a resistance increasing type squeeze film damper with bosses an on outer ring or a shaft neck. The damper comprises a damper shaft neck and a damper outer ring, the shaft neck is sleeved with the outer ring, an oil film clearance is reserved between the shaft neck and the outer ring, an oil supply groove and an oil supply hole are formed in the middle of the outer ring, and the oil film clearance is communicated with the oil supply hole through the oil supply groove; a plurality of bosses are arranged on the inner side wall of the outer ring or the outer surface of the shaft neck and evenly arranged in the circumferential direction of the shaft neck or the outer ring; the bosses are parallel to the axial central line of the shaft neck or the outer ring in the length direction; the bosses are axially communicated on the outer surface of the shaft neck or the inner side wall of the outer ring respectively; the top surface of each boss is an arc surface, and the circle center of each boss is located