Centrifugal pendulum device with variable rotating radius

A rotation radius, centrifugal pendulum technology, applied in the direction of rotation vibration suppression, spring/shock absorber, vibration suppression adjustment, etc., can solve the problem that the shock absorber can not meet the requirements of vehicle comfort well

Active Publication Date: 2017-03-22
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 harmon

Method used

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  • Centrifugal pendulum device with variable rotating radius
  • Centrifugal pendulum device with variable rotating radius
  • Centrifugal pendulum device with variable rotating radius

Examples

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Embodiment Construction

[0024] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0025] see figure 1 As shown, the centrifugal pendulum device with variable radius of rotation described in the embodiment of the present invention is mounted in the shock absorber of the vehicle, and includes a dial 1 and four groups of sliding pieces 4 symmetrically arranged on the dial, a return spring 5, Rivet 2, centrifugal pendulum 3 and limit rivet 6, slide plate 4 can be radially slidably assembled on dial 1 through limit rivet 6, and slide plate 4 and dial 1 are connected by return spring 5 at the same time; centrifugal pendulum 3 is swingably installed on the sliding piece 4 through the rivet 2.

[0026] see Figure 2 ~ Figure 4 As shown, the dial 1 is provided with a dial rivet working hole 7, the centrifugal pendulum 3 is provided with a centrifugal pendulum arc groove 13, and the slider 4 is provided with a slide...

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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...

Claims

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Application Information

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IPC IPC(8): F16F15/14
CPCF16F15/145
Inventor 陈雷曾春年罗杰周斌吴超华
Owner WUHAN UNIV OF TECH
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