Automatic clearance compensation device for support yoke of rack-pinion type steering apparatus

摘要

An automatic clearance compensation device for a support yoke of a rack-pinion type steering apparatus, includes: a hollow yoke cylinder integrally formed with a rack housing, wherein the yoke cylinder is positioned at the opposite side of a rack gear formed at a rack bar; a support yoke slidably inserted within the yoke cylinder and formed with a groove at its one side to be in contact with the outer surface of the rack bar; a spacer assembly installed within the yoke cylinder, contacting the other side of the support yoke. The device can automatically compensate for the clearance created due to the wear between the rack bar and the support yoke. Even when the external impacts are reversely transmitted, the device can remove the noise generated between the support yoke and the yoke plug.

主权项

1. An automatic clearance compensation device for a support yoke of a rack-pinion type steering apparatus, comprising:
a hollow yoke cylinder integrally formed with a rack housing, wherein the yoke cylinder is positioned at the opposite side of a rack gear formed at a rack bar; a support yoke slidably inserted within the yoke cylinder and formed with a groove at its one side to be in contact with the outer surface of the rack bar; a spacer assembly installed within the yoke cylinder, contacting the other side of the support yoke, wherein the spacer assembly is expandable and retractable in axial and radial directions; and a yoke plug coupled at the end of the yoke cylinder for supporting the spacer assembly, wherein the spacer assembly comprises: a first spacer provided with a first set of guide grooves; a second spacer provided with a second set of guide grooves; and two or more wedge members disposed between the first and second spacers and opposite sides thereof being inserted into the first and second set of guide grooves which are correspondingly positioned facing each other to form pairs.