| 摘要 |
An axle lift system for a road vehicle comprises an axle having a trailing arm (3) close to each end, which trailing arms (3) are each mounted on a spring hanger (2) which is attached to the chassis of the road vehicle, and wherein a gas suspension system is provided between each trailing arm (3) or the axle and the chassis, a fixed support (30), which is fixed to a spring hanger (2), is located beneath a trailing arm (3), a bellows (31) is arranged on said support (30), which bellows (31) can press by means of a seating (34) from below against the trailing arm (3) or a part fixed thereto, for lifting the axle when gas pressure is supplied to the bellows (31) and the gas suspension system is released, wherein the bellows is provided with a bellows rubber (33) which interacts, close to the seating (34), with positioning means (32) to hold the bellows rubber (33) in a predetermined position with respect to said support. The positioning means (32) exert a pretensioning force on the bellows rubber (33) in the direction of its compressed position. |
