| 摘要 |
A section of bridge tensiometric scales includes bearing, load-receiving platform with two rails rigidly fixed on the upper surface as a section of rail track, sensors installed between the bearing and the load-receiving platform, each of those includes a sensitive element with definite axes and with the upper and the lower bearing surfaces, those are parts of the spheres with the centers on the axes. The section is arranged with possibility of built-in to the space formed for it in the rail track and rolling on and placement of the truck there, with following improvements made there: the bearing surfaces of the sensitive elements are made concave. Each sensor additionally includes the upper and the lower cups where the bearing surfaces turned to the sensitive elements are concave, the upper and the lower balls installed between the bearing surfaces of the respective cups and the sensitive elements, and tightening elements installed between the cups and the closest to those ends of the sensitive elements. The concave bearing surfaces of the upper and the lower cups are parts of the spheres. The cups are arranged with capability of inclination with respect to the axis of the sensitive element. The radii of the balls are smaller compared to the radii of the spheres of the bearing surfaces of the cups and the sensitive elements surrounding the balls. The section additionally includes a facility for common holding of the load-receiving platform and the bearing in working position, which is connected to the bearing. The technical result is in increase of measurement accuracy of the section of bridge scales. |
