Ratchet wheel type flywheel capable of rotating in two directions for ball screw inerter

Abstract

The invention discloses a ratchet wheel type flywheel capable of rotating in two directions for a ball screw inerter. The ratchet wheel type flywheel comprises a ball screw and at least one group of flywheel devices, wherein each flywheel device comprises a lead screw nut assembly, at least one forward flywheel assembly and at least one reverse flywheel assembly; each lead screw nut assembly is in threaded fit with the ball screw; each forward flywheel assembly comprises a forward dial wheel, a forward flywheel and a forward pawl mechanism; the lead screw nut assembly is fixedly sleeved with the forward dial wheels; the forward dial wheels are sleeved with the forward flywheels, and matched with the forward flywheels through the forward pawl mechanisms; each reverse flywheel assembly comprises a reverse dial wheel, a reverse flywheel and a reverse pawl mechanism; the lead screw nut assembly is fixedly sleeved with the reverse dial wheels; and the reverse dial wheels are sleeved with the reverse flywheels, and matched with the reverse flywheels through the reverse pawl mechanisms. Under the condition that the rotation direction of the ratchet wheel type flywheel is not changed, the translation direction of the ball screw is changed, and the impact caused by the change of the rotation direction of the flywheel when the movement direction of the ball screw inerter is switched is reduced.

Description

technical field [0001] The invention relates to the technical field of vibration reduction of a flywheel type inerter, in particular to a bidirectionally rotatable ratchet flywheel for ball screw inertial capacity. Background technique [0002] In 2001, Smith of Cambridge University invented the "inerter". This new mechanical element can provide a very large amount of inertia with a small structural mass. An ideal inerter element is defined as a single-channel mechanical element with two relatively independent and free-moving endpoints. The forces on the two endpoints are equal in magnitude and opposite in direction, and are proportional to the relative acceleration. According to the structural principles, inerters are divided into four categories: mechanical, hydraulic, electromechanical and electromagnetic. In addition, according to the relative relationship of the transmission motion, it can also be divided into coaxial linear type, parallel shaft type, torsion type and...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problem in the prior art that the impact caused by the inertial capacity of the general ball screw changing the rotation direction of the flywheel affects the smoothness of the inertial capacity of the ball screw, the present invention provides a bidirectionally rotatable ratchet for the inertial capacity of the ball screw The flywheel ensures that the inertial coefficient of the ball screw does not change when the inertial movement direction is switched; and each flywheel does not need to change the rotation direction, thereby reducing the impact of the ball screw inertia due to the change of the rotation direction of the flywheel

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