Investigation of The Effect of Clutch Disc Cushion Spring Bending Radius on Spring Reaction Force

Abstract

In this study, the leaf spring in the clutch disc, one of the lower parts of the clutch, which is one of the most important motion transmission systems of motor vehicles, has been examined. One of the most important parts are ensure the working performance of the clutch and a comfortable gear shift to the user is the leaf spring, which is mounted with rivets inside the clutch disc. There are bends on the leaf spring at acute angles and heights. These bends absorb the axial force that the clutch disc is exposed to and enable the clutch to be realized in the optimum time interval. In this study, the radius of the bends on the leaf spring was changed and the effect of this change on the leaf spring reaction force was investigated. After the tests and finite element analyzes, the enlargement of the bending radius reduces the reaction force of the clamp load against the compression force. The decrease of this force, which is opposite to the direction of the clamp load, increases the functional force of the clamp load and provides more torque transmission.