Frame of rail vehicle bogie designed in particular for freight wagons

摘要

The present invention relates to a frame of a rail vehicle bogie designed in particular for freight wagons and consisting of I-section side beams connected by a box section bolster (2) and by channel section end beams (3), wherein the central upper plate (4) and the central lower plate (6) of the bolster (2) characterized by the same thickness go through web plates (14) of the side beams (1) while the changes in the thickness of extreme upper plates (5) and extreme lower plates (7) and of spacers (11) connecting them at their ends which are located in areas of low concentration of stresses are located on the inner side of the spacers (11), wherein the bolster (2) has its central upper plate (4) completed with extreme upper plates (5) and the central lower plate (6) completed with extreme lower plates (7). The central upper plate (4) and the central lower plate (6) being approximately 1.2 times thicker than the extreme upper plates (5) and than the extreme lower plates (7). Furthermore, the upper arm (10) of the spacer (11) is at least 1.3 times longer than the lower arm (12) thereof, whereas the lower arm (12) is at least equal to the length of the development of the curved part (13) of the spacer (11), whereby at least one of the arms (10, 12) of the spacer (11) is approximately 1.2 times thicker than the extreme upper plates (5) and extreme lower plates (7).