| 摘要 |
FIELD: transport engineering. SUBSTANCE: invention relates to transport structures operating under heavy load. Proposed structure symmetrical relative to vertical axis has crane beam, brake beam, arch rail, brake bullheaded rail and shock absorber. Arch rail forms space over central head. Crane beam is made with chute in upper chord. Tubular shock absorber supports arch rail from below and thrusts against chute of crane beam. Brake bull-headed rail is provided with central corrugation following the profile of arch rail. Brake beam is provided with longitudinal corrugation following the profile of brake bull-headed rail and getting into its space. Crane beams is sectional iron, its chute being arranged symmetrically to chute in brake beam to form closed space in which said tubular shock absorber is tightly fitted. Shock absorber is elliptical. All members of transport rail-and-beam structure are connected into common unit by hollow rivers with inserted cores. EFFECT: increased strength and improved repairability of structure, reduced material usage and labor input in manufacture. 1 dwg |
