Vibrator for active vibration damping and vibration damping device including same

Abstract

The invention discloses an exciter used for active vibration-reduction and a vibration damper provided with the same. The exciter used for active vibration-reduction comprises a shell, a motor and two connecting shafts which are supported by the shell. The motor serves as a power source and is in transmission connection with the two connecting shafts; an eccentric block assembly is arranged on each connecting shaft; and the two connecting shafts are coaxially arranged and operate reversely to drive the eccentric block assemblies on the two connecting shafts correspondingly to operate reversely. The vibration damper is provided with the exciter used for active vibration-reduction. The exciter used for active vibration-reduction and the vibration damper provided with the same have the characteristic of large output force, stepless regulation for the output force can be conducted conveniently, and directional output of the force can be achieved.

Description

technical field [0001] The present disclosure relates to a vibrator, in particular to a vibrator for active vibration reduction and a vibration reduction device including the same. Background technique [0002] At present, the active control exciters are mostly electromagnetic exciters, but the output force of electromagnetic exciters is small and the heat dissipation performance is not good. vibration requirements. [0003] Existing mechanical exciters mostly adopt single-axis structure and double-axis structure, among which the single-axis single eccentric block structure cannot adjust the output force. The mechanical exciter with a single-axis double eccentric block structure generally adopts the method of punching holes in the eccentric block and inserting fixed pins to adjust the output force. The adjustment of the output force is limited, and stepless adjustment cannot be realized. The directional output of the output force cannot be realized. Existing exciters with...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the actively controlled vibrators are electromagnetic exciters, but the output force of electromagnetic exciters is small and the heat dissipation performance is not good. vibration requirements

[0003] Existing mechanical exciters mostly adopt single-axis structure and double-axis structure, among which the single-axis single eccentric block structure cannot adjust the output force

The mechanical exciter with a single-axis double eccentric block structure generally adopts the method of punching holes in the eccentric block and inserting fixed pins to adjust the output force. The adjustment of the output force is limited, and stepless adjustment cannot be realized. Directional output of output force cannot be achieved

The existing biaxial structure exciter uses two parallel connecting shafts to install two eccentric blocks respectively, which can realize directional output of output force, but the size of the eccentric block is limited by the arrangement of the connecting shafts and cannot be too large. The output range is narrow; and when adjusting the output force, the shell needs to be opened for manual adjustment, which is inconvenient to adjust

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