A Variable Inertia Coefficient and Two-way Rotating Ratchet Type Ball Screw Inerter

Abstract

The invention discloses a variable inertia coefficient and bidirectionally rotatable ratchet type ball screw inerter, which includes a forward flywheel assembly and a reverse flywheel assembly; the forward flywheel assembly includes a forward dial, a forward flywheel disc and a forward expansion Mechanism, the forward dial is fixedly set on the screw nut assembly, the forward flywheel sleeve and the forward dial form a ratchet structure, and the forward expansion mechanism is set on the forward flywheel to change the rotation of the forward flywheel Radius; the reverse flywheel assembly includes a reverse dial, a reverse flywheel disc and a reverse expansion mechanism, the reverse flywheel and the reverse dial form a ratchet structure, and the reverse expansion mechanism is set on the reverse flywheel disc to change the reverse direction The radius of gyration of the flywheel. The impact caused by the change of the rotation direction of the flywheel when the inertial capacity of the ball screw switches the movement direction is realized without changing the rotation direction of the flywheel. At the same time, under the premise of not adding additional devices and using additional energy, the flywheel moment of inertia can be continuously variable and adaptive to different working conditions.

Description

technical field [0001] The invention relates to the technical field of vibration reduction of flywheel type inertial containers, in particular to a ratchet type ball screw inertial container with variable inertia coefficient and bidirectional rotation, in particular to a ratchet wheel with variable rolling inertia coefficient and bidirectional rotation. Ball screw inertia container for the flywheel. Background technique [0002] In 2001, Smith of Cambridge University invented the "habit container". This new type of mechanical element can provide a very large amount of inertia with a small structural mass. The ideal inertial container element is defined as a single-channel mechanical element with two relatively independent and free-moving endpoints, and the forces at the two endpoints are equal in magnitude and opposite in direction, and are proportional to the relative acceleration. According to the structural principle, the inertia container is divided into four types: me...

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Problems solved by technology

[0005] In view of the shortcomings of the flywheel used in the general inerter container in the above-mentioned prior art that the moment of inertia is not changeable and it is difficult to bear the instantaneous large load, it overcomes the impact caused by the inertial capacity of the general ball screw when changing the direction of rotation of the flywheel on the smoothness of the inertial capacity of the ball screw Problem, the present invention provides a variable inertial coefficient and bidirectionally rotatable ratchet type ball screw inerter, which ensures that the inertial coefficient remains unchanged when the ball screw inertial movement direction is switched; and each flywheel does not need to change the rotation direction, thereby Reduce the impact of ball screw inertial capacity due to the change of flywheel rotation, and at the same time, without adding additional devices and using additional energy, the flywheel moment of inertia can be continuously variable and adaptive to different working conditions

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