Damping-controllable novel hybrid bearing, rotating system and control method

Abstract

The invention discloses a damping-controllable novel hybrid bearing, a rotating system and a control method, and relates to the field of rotating mechanisms. The novel hybrid bearing comprises a bearing pedestal, a deep groove ball bearing, a conical bearing, a damping ring, contacts, a driving ring, a piezoelectric actuator and a controller. The deep groove ball bearing and the conical bearing are both mounted on the bearing pedestal and are arranged in parallel, and the deep groove ball bearing and the conical bearing are coaxially arranged to form a space for mounting a rotating shaft. The damping ring sleeves the outer sides of the deep groove ball bearing and the conical bearing, the contacts are arranged on the driving ring and are arranged at intervals in the circumferential direction of the driving ring, the driving ring, the deep groove ball bearing and the conical bearing are coaxially arranged, the contacts are arranged towards the damping ring, and the contacts abut against the damping ring. The piezoelectric actuator is matched with the driving ring, and the controller is electrically connected with the piezoelectric actuator. The damping-controllable novel hybrid bearing can bear larger loads, can keep higher operation stability, and particularly has reliable stability when approaching and passing through a first-order critical rotating speed area.

Description

technical field [0001] The invention relates to the field of rotating mechanisms, in particular to a novel hybrid bearing with controllable damping, a rotating system and a control method. Background technique [0002] When the traditional bearing bears a large load, the rotation stability will be greatly affected, especially when it is close to the first-order critical speed region, the rotation stability and reliability will be greatly disturbed. [0003] In view of this, this application is proposed. Contents of the invention [0004] The first object of the present invention is to provide a new type of hybrid bearing with controllable damping, which has a simple structure, can carry relatively large loads, and can also maintain high running stability, especially when approaching and passing the first-order critical In the speed range, it has reliable stability. [0005] The second object of the present invention is to provide a controllable damping rotating system, w...

AI Technical Summary

Problems solved by technology

[0002] When the traditional bearing bears a large load, the rotation stability will be greatly affected, especially when it is close to the first-order critical speed region, the rotation stability and reliability will be greatly disturbed

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