Centrifugal pendulum device with variable rotating radius

Abstract

A centrifugal pendulum device with a variable rotating radius is carried in an automobile damper. The centrifugal pendulum device with the variable rotating radius comprises a driving plate, slip sheets, reset springs, rivets, centrifugal pendulums and limiting rivets, wherein the slip sheets, the reset springs, the rivets, the centrifugal pendulums and the limiting rivets are symmetrically arranged on the driving plate. The slip sheets are arranged on the driving plate in a radial sliding mode through the limiting rivets, and meanwhile, the slip sheets and the driving plate are connected through the reset springs. The centrifugal pendulums are arranged on the slip sheets in a swinging mode through the rivets. Driving plate rivet work holes are formed in the driving plate. Centrifugal pendulum arc grooves are formed in the centrifugal pendulums. Slip sheet arc grooves are formed in the slip sheets. The rivets are connected with the centrifugal pendulum arc grooves, the slip sheet arc grooves and the driving plate rivet work holes. According to the centrifugal pendulum device with the variable rotating radius, when the work rotating speed of the centrifugal pendulums is changed, the work radius of the centrifugal pendulums is changed, then engine vibration harmonic order eliminated by the centrifugal pendulums is changed, and each order of main harmonic order vibration of an automobile power drive system can be eliminated; and by being combined with the work rotating speed corresponding to vibrating of each harmonic order when an engine works, vibration in a plurality of harmonic orders is eliminated by means of suitable centrifugal pendulum design parameters

Description

technical field [0001] The invention relates to the technical field of torsional vibration reduction of an automobile power transmission system, in particular to a centrifugal pendulum device with a variable radius of rotation. Background technique [0002] A new type of automotive torsional vibration damper—dual mass flywheel (DMF) has been improved in many aspects since its application. The dual mass flywheel (CPVA-DMF) equipped with centrifugal pendulum is used as a new torsional vibration damper , its damping effect is better than the traditional dual-mass flywheel, and it has been initially applied to diesel-engined vehicles in recent years. [0003] Due to space constraints, the torsional rigidity of the clutch-type torsional shock absorber of the transmission cannot be designed too small, and the effect of frequency modulation is general; due to the large geometric space of the dual-mass flywheel, its torsional rigidity can reduce the resonance of the vehicle power tr...

AI Technical Summary

Problems solved by technology

With the improvement of automobile comfort requirements, the new torsional shock absorber needs to effectively suppress the torsional vibration of multiple harmonics in the full speed range, and the existing shock absorber can no longer meet the passenger's requirements for vehicle comfort. , there is room for improvement

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