Anti-impact device and working method thereof

US11535284B2 · kind B2 · utility

Assignee

• SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY · CN

Inventors

• Chenglong Wang · Lo Wu, CN
• Yifang Chen · Duluth, US
• Xueqian Wei · Qingdao, CN
• Xueting WANG · Jiangning, CN
• Meng Chen · Beijing, CN
• Qingliang Zeng · Shandong, CN

Key dates

• Filing date: May 7, 2020
• Grant date: Dec 27, 2022
• Expiry date: May 7, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2230/0005
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An anti-impact device includes a first connector, an upper outer cylinder, a lower outer cylinder and a second connector which are sequentially connected, where a top of the lower outer cylinder is sleeved with the upper outer cylinder to be movably connected to the upper outer cylinder; an aluminum honeycomb and a magnetorheological buffer outer cylinder are arranged inside the lower outer cylinder, the aluminum honeycomb is arranged at a bottom of a lower end cover, a piston rod is arranged inside the magnetorheological buffer outer cylinder, a top end of the piston rod extends out of an upper end cover and is connected to a collision head, and the piston rod between the collision head and the upper end cover is sleeved with a return spring; and an electromagnetic coil is wound around the piston rod, a damping piston is arranged at a lower part of the piston rod.