Anti-air backflow and anti-deformation liquid viscous clutch dual plate

Abstract

The invention provides an anti-air-backflow and anti-deformation dual disc of a liquid viscous speed-regulating clutch. The clutch dual disc is an annular steel disc. An inner annular ring of the annular steel disc is provided with a spline tooth. The outer surface of the clutch dual disc is a plane. The inner surface of the clutch dual disc is an inclined plane. The thickness of the clutch dual disc is gradually increased in the direction from the inner diameter to the outside diameter. The thickness variation of the clutch dual disc meets the formula of h2-h1=l*tangent alpha= (omega2 / omega1)*n. The included angle alpha between the inner surface and the upper surface of the clutch dual disc is more than 0 degree and no more than 2 degrees. The dual disc reduces the air volume of frictionpairs, increases the effective contact area of the friction pairs, enhances the film forming ability and the dynamic pressure bearing capacity of a viscous liquid between the friction pairs, enhancesthe non-deformability of the dual disc, improves the working performance of the liquid viscous speed-regulating clutch, and prolongs the service life of the liquid viscous speed-regulating clutch.

Description

technical field [0001] The invention belongs to the field of friction components, in particular to a pair plate of a liquid viscous speed regulating clutch that prevents air backflow and deformation. Background technique [0002] Liquid viscous transmission is a new type of fluid transmission that utilizes the shearing action of the oil film to transmit power. The dual plate is a key part of the liquid viscous clutch, which can transmit torque to the output shaft. piece. When the friction pair rotates, the viscous oil between the friction pairs will be affected by the centrifugal force and its own viscous shear force. Due to the inconsistency of the force on the oil at different positions, the volume fraction of the oil from the inner diameter to the outer diameter will gradually decrease and cannot be filled. The gap between the friction pair reduces the efficiency of the clutch; due to the existence of frictional heat of rotation and shear heat of viscous liquid, it is ea...

AI Technical Summary

Problems solved by technology

When the friction pair rotates, the viscous oil between the friction pairs will be affected by the centrifugal force and its own viscous shear force. Due to the inconsistency of the force on the oil at different positions, the volume fraction of the oil from the inner diameter to the outer diameter will gradually decrease and cannot be filled. The gap between the friction pair reduces the efficiency of the clutch; due to the existence of frictional heat of rotation and shear heat of viscous liquid, it is easy to cause thermal deformation of the dual plate, and the deformation of the dual plate seriously affects the working capacity of the fluid-viscous speed regulating clutch, reducing service life of the clutch, and even cause major safety accidents

At present, in order to realize the speed regulation of 0-100%, the dual plate is generally a concentric disc whose upper and lower surfaces are parallel, which will cause air to flow into the friction pair when the clutch is working, resulting in a decrease in the working efficiency of the clutch.

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