A joint type magneto-rheological vibration damping device

Abstract

The invention relates to the field of vibration damping devices, in particular to an articulated magnetorheological vibration damping device. It includes a rotating shaft, a front end cover, a rear end cover, a steel leaf spring, an electromagnetic coil, a coil winding tube and a damping disc; both the front end cover and the rear end cover are rotatably arranged on the rotating shaft; the front end cover and the rear end cover are fixedly connected; A limit step is set on the side of the cover away from the rear end cover; one end of the steel leaf spring is fixed on the end of the rotating shaft close to the front end cover; the other end of the steel leaf spring is fixed on the limit step; A cavity is arranged between the two parts; the damping disc is fixedly arranged on the rotating shaft and is arranged in the cavity; a filling hole is arranged on the front end cover, which is used to inject magnetorheological fluid into the cavity; the electromagnetic coil is arranged in the cavity away from the rotation One side of the shaft; the rear end cover is provided with a lead hole for supplying power to the electromagnetic coil. The present invention integrates a magnetorheological damper and a steel leaf spring, has a compact structure, can adjust the damping in real time, and is convenient to realize the semi-active control of the vibration damping device.

Description

technical field [0001] The invention relates to the field of vibration damping devices, in particular to a joint type magneto-rheological vibration damping device. Background technique [0002] The swing arm type wheeled unmanned mobile platform adopts a two-stage articulated arm structure for suspension, which has the advantages of adjustable height and good passing performance. The vibration reduction of the platform is mainly realized by the elastic and damping elements installed between the two articulated arms. In the past, the vibration reduction scheme of coil spring and rotary damping plate was used, but there were problems such as the inability to automatically compensate after the damping plate was worn out, and the large space occupied by the spring damping split structure. [0003] Aiming at the structural size limitation of the articulated arm while satisfying the good vibration damping effect of the platform, it is an urgent problem to study a vibration dampin...

AI Technical Summary

Problems solved by technology

In the past, the vibration reduction scheme of coil spring and rotary damping plate was adopted, and there were problems such as that the damping plate could not be automatically compensated after wear and tear, and the spring damping split structure took up a lot of space.

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