| 摘要 |
FIELD: construction. ^ SUBSTANCE: invention may be used to load and unload arc bridge onto railway platform during transportation to area of temporary bridge building via water and upland obstacles, and also to arrange temporary quick-erected bridges in areas of natural disasters. The novelty is the fact that it comprises two at least mounting supports, working surface of which is arranged with the possibility to provide for low level of sliding friction with track planking, two composite braces to set bridge tracks from working dimensions into transport ones and to return to working dimensions, each arranged in the form of screw drive with two pulling screws arranged one with the right and the other one with the left thread, extender and two sliders, every of which is equipped with protruding hook to interact with appropriate bridge track, balancing devices, providing for coaxiality of screw drive elements, and external limiters of bridge tracks displacement. Arrangement of mounting supports, composite braces for setting bridge tracks from working dimensions into transport on is demonstrated, as well as possibility to convert a brace into device for sliding bridge tracks from transport position into working one. ^ EFFECT: development of quickly mounted and dismounted set of equipment for loading of arc bridge onto railway platform to provide for transport railway dimension and to return bridge tracks into working dimensions for its removal off the platform by bridge launcher. ^ 6 cl, 8 dwg |
