Measuring guide for measuring the radial component of the contact force between the piston rod and the piston rod guide in the shock absorber of a wheeled vehicle

摘要

The invention relates to a measuring guide (3) for measuring the radial component (F) of the contact force between a piston rod (22) and a piston rod guide (22) in a damper (0) of a wheeled vehicle (01), the guide (3) comprising surfaces adapted for mounting in the hollow cylinder (1) of the damper (0). A thin-walled hollow tube adapted as a deformation measuring member (30) and provided on its outer circumference with a set of strain gauges (321) for measuring the deformation of the deformation measuring member (30) is embedded in the guide body (3) at one end. The strain gauges (321) are adapted to be coupled to a measurement evaluation device, and a guide (34) of the piston rod (22) is further mounted on the deformation measuring member (30). The strain gauges (321) are placed at regular angular intervals around the circumference of the deformation measuring member (30) near the point of its insertion into the guide body (3), the piston rod guide (34) and its guide surface (340) adapted to contact with the piston rod (22), are arranged on the deformation measuring member (30) completely outside the area of insertion of the deformation measuring member (30) into the guide body (3).