RU45349U1 - JOINING BEAM OF EQUIPPED CARS - Google Patents

Abstract

The connecting beam of eight-axle wagons refers to the field of railway transport and contains a top sheet, longitudinal stiffeners, a curved bottom sheet, a joint plate, a back plate, five-sided plates with fenders, central and extreme side bearings located on the wing liners, in which the five-sided plates are made with a rounded end parts, the bottom sheet is cut from one sheet and made by the bending method, and the radius of pairing of the upper fender liner with the upper sheet is made in the range 130-150 mm.

Description

This utility model relates to the field of railway transport and is intended for use in the construction of eight-axle wagons for connecting pairs of two-axle bogies.

From the book "Wagons", ed. L.A. Shadura, M., Transport, 1980, p. 185, 212, 213, Fig. VIII. 30, a stamped welded connecting beam of eight-axle wagons is adopted, which is adopted as a prototype, which comprises a welded top sheet, longitudinal stiffeners, a curved bottom sheet, a thrust plate, pyatnikovye plates with pyatnikami, central and extreme side bearings located on the wing flaps.

The design of the back plate of this known connecting beam has a rectangular shape with sharp stress concentrators in the end parts, a small radius of conjugation of the upper wing flap of 30-50 mm with the upper sheet causes a significant concentration of stresses in the connection.

In the claimed design of the connecting beam, containing welded top sheet, longitudinal stiffeners, bottom sheet of curved shape, thrust bearing, pyatnikovye plates with pyatnikov, central and extreme side bearings located on the wing flaps, in contrast to the prototype, the pyatnikovye plates are made with a rounded end parts, the bottom sheet is cut from one sheet and made by bending, and the radius of pairing of the upper fender liner with the upper sheet is made in the range 130-150 mm. In addition, the connecting beam is different from

prototype in that the thickness of the top sheet is 30 ± 1 mm, and the bottom sheet is 26 ± 1 mm.

This allows you to increase the fatigue strength of the connecting beams by eliminating the zones of stress concentration and to simplify its design by performing the bottom sheet from one cutting.

The claimed technical solution is illustrated by drawings, where: in Fig.1 shows a General view of the proposed connecting beam of eight-axle cars, top view; figure 2 is the same, bottom view; figure 3 shows a side view of the connecting beam.

The connecting beam of eight-axle wagons contains a top sheet 1 joined by welding, longitudinal stiffeners 2, a bottom plate 3 of curved shape, a thrust plate 4, five-sided plates 5 with fives 6, central side-bearings 7 located on the central wing flaps 8 and extreme side-bearings 9 located on the extreme wing flaps 10. Pyatnikovy plates 5 are made with a rounded end parts 11, which allows to reduce the stress concentration in this area of the beam. The bottom sheet 3 is cut from one solid sheet with a curved shape giving it a bending method. The radius of pairing of the upper wing flap 10 with the top sheet 1 is made in the range 130-150 mm

The thickness of the top sheet 1 in comparison with the prototype increased and is 30 ± 1 mm The thickness of the bottom sheet 3 is also increased and is 26 ± 1 mm. Top 1, bottom sheet 3 and ribs 2 are made of steel 09G2S375 strength class, and fridays 6 and thrust bearing 4 are made of the same

325 steel strength class.

This embodiment of the connecting beam allows to increase its fatigue strength due to the elimination of zones - stress concentrators and to simplify its design due to the implementation of the bottom sheet from one cutting.

Claims (2)

1. The connecting beam of eight-axle wagons, comprising a welded top sheet, longitudinal stiffeners, a curved bottom sheet, a thrust bearing, pyatnikovy plates with ferns, central and extreme side bearings located on the wing liners, characterized in that the pyatnik plates are made with the curvature of their end parts , the bottom sheet is cut from one sheet and made by the bending method, and the radius of pairing of the upper fender liner with the upper sheet is made within 130-150 mm. 2. The connecting beam according to claim 1, characterized in that the thickness of the upper sheet is 30 ± 1 mm, and the bottom sheet is 26 ± 1 mm.