Patent ID: 11879514
Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A working method of the compound impact-resistant device according to claim 7, comprising:
1) mounting the impact-resistant device at a position needs to bear impact buffering, and connecting a first pressure sensor, a second pressure sensor and a magnetorheological damper coil to a control system, wherein in this case, a magnetorheological damper outputs a maximum resistance, and the whole impact-resistant device is in a maximum buffer resistance output state;
2) collecting, when the impact-resistant device receives external impact pressure, pressure information and transmitting the pressure information to the control system by the second pressure sensor, and adjusting, by the control system, a current of the magnetorheological damper coil to cause an output resistance of the magnetorheological damper to be zero; wherein in this case, only a crushing member bears external impact pressure, and the crushing member is crushed and deformed; and
3) driving, when the crushing member deforms and descends, a top cover, a piston rod and a spiral valve element to move downwards synchronously, wherein hydraulic oil below the spiral valve element is pressed to flow through a spiral recess, thereby consuming impact energy.