A bidirectionally rotatable ratchet flywheel for ball screw inertia

Abstract

The invention discloses a bidirectionally rotatable ratchet flywheel for ball screw inertia, which includes a ball screw and at least one set of flywheel devices; the flywheel device includes a screw nut assembly, at least one forward flywheel assembly and at least one reverse flywheel assembly The flywheel assembly, the lead screw nut assembly is threadedly matched with the ball screw; the forward flywheel assembly includes the forward dial, the forward flywheel and the forward pawl mechanism, the forward dial is fixedly sleeved on the screw nut assembly, and the forward The flywheel is set on the forward dial and cooperates with the forward dial through the forward pawl mechanism; the reverse flywheel assembly includes the reverse dial, reverse flywheel and reverse pawl mechanism, and the reverse dial is fixedly sleeved. On the lead screw nut assembly, the reverse flywheel is sleeved on the reverse dial and cooperates with the reverse dial through the reverse ratchet mechanism. The translational direction of the ball screw can be changed without changing the rotation direction of the flywheel, which reduces the impact caused by the change of the rotation direction of the flywheel when the inertial capacity of the ball screw switches the direction of motion.

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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