Damper and foot plug provided with same

• Main Author: HUANG YUANFENG
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2012
• 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

The utility model relates to a damper, which includes a hollow barrel-shaped damper main body. A long shaft is arranged in one end of the damper main body, a torsional spring fixed with the damper main body is arranged in the long shaft, and a damping part for hindering the rotation of the torsional spring is arranged at the other end. The damping part includes inner and outer concentric shaft sleeves, a clearance is reserved between the two shaft sleeves, the clearance at one end is closed, a shaft center is inserted into the clearance between the two shaft sleeves from the other end and can perform relative rotation in the clearance between the two shaft sleeves, the clearance between the two shaft sleeves is further filled with damping oil, and the inner wall and the outer wall of the shaft center are respectively provided with one seal ring capable of realizing seal with the inner shaft sleeve and the outer shaft sleeve. The damper is provided with two double-stage seal structures, the damping oil seal ef