RU160707U1 - Gondola car body with crack-resistant nodes for connecting the side pillars of the side walls, the transverse beam and the lower frame of the walls - Google Patents

Abstract

A gondola car body with crack-resistant joints for connecting racks of side walls, lower wall ties and transverse beams of the frame, including side and end walls in the form of frames covered by sheathing sheets, and a frame with a spine beam, end, pivot and intermediate transverse beams, flooring, longitudinal, beams supporting the flooring, characterized in that the upper sheets of the transverse beams at the ends are bent at right angles, overlapping the ends of the beams, the racks are connected to the lower wall trim with rivets, and with the transverse beams frame - rivets and welding.

Description

The proposed utility model relates to railway transport - body structures of gondola cars (field of car building).

The body designs of gondola cars with a deaf body are known TU 24.05.001.109-96 (model 12-295), TU 24.05.001.125-02 (model 12-2104), TU 24.00.806-82 (model 12-1505) designed for the carriage of inert bulk , lumpy cargo that does not require protection from atmospheric precipitation.

The bodies of the listed cars are welded and include two side and two end walls, a frame with flooring. The frame includes a longitudinal spinal beam, transverse beams (end, pivot, intermediate), additional longitudinal beams supporting the flooring. The end beams of the frame are welded or stamped L-shaped cross section. Pivot and intermediate beams - welded box or T-section and include one or two vertical sheets and two belts: upper and lower. The upper belts of the pivot and intermediate beams are flat of sheets or strips. The upper belts of all the transverse beams intersect the spinal beam and form lap joints with the upper shelves of the spinal beam profiles. The floor sheets are connected to the upper belts of the transverse beams. Compounds are also lapped.

The composition of the side wall includes upper and lower harnesses, a set of intermediate and corner struts, and a paneling. The upper binding is made of a bent profile 6 mm thick, and the lower one is made of a hot-rolled corner 160 × 100 × 9 mm. Intermediate racks are made in the form of a special trough profile in accordance with (N) GOST 5267.6-78, and two corner racks of a welded structure are made of 8 mm thick sheet. The wall frame is covered with a lining with periodic corrugations or smooth non-corrugated, consisting of two sheets welded together: the upper one is 3.5 mm thick and the lower one is 4.5 mm.

The intermediate strut and the upper harness form a T-joint, and with the lower harness they form a welded lap joint. In the bodies of covered freight wagons manufactured before 1936, the connection was riveted. Connections of corner posts with strapping and trim, trim with intermediate struts and strapping - lap.

The end wall includes an upper harness from a bent profile 6 mm thick, horizontal belts from a bent omega-shaped profile and a half-stand between the belts from a bent omega-shaped profile. The wall frame is covered with a smooth non-corrugated sheet with a thickness of 6 mm. The connection of the belts with the corner posts and the upper trim with smooth skin is overlapping. The connection of the upper harness with corner posts is t-shaped.

A drawback of modern body structures is the appearance of cracks in the weld zone connecting the side wall pillars with the lower wall trim and the transverse beams of the frame.

The objective of the proposed utility model is to increase the strength of the nodes of the connection of the racks of the side wall with the lower strapping and with the transverse beams of the frame, as well as reducing the cost of repairs.

A gondola car body is proposed, including side and end walls in the form of frames covered by sheathing sheets, and a frame with a spinal beam, end, pivot and intermediate transverse beams, flooring, longitudinal, supporting flooring, beams, characterized by the design of the transverse beams of the body frame, which the upper sheets at the ends are bent at right angles and overlap the ends of the beams, and the fact that the racks of the side walls are connected to the lower strapping of the side walls with rivets, and with the transverse beams at the top of the beams pkami, in the lower part of the beams - welding.

The use of rivets instead of welds allows you to get rid of cracks in the junction of the rack with the lower wall trim and with the transverse beam of the frame. Rivets are located in the tensile stress zone, in which the weld seam is destroyed due to possible crack-like weld defects. It is known that due to the mentioned cracks the body often gets into repair. Cracks and diaphragms used during repairs do not eliminate cracks, as the cause of cracks is crack-like welding defects. Rivet joint eliminated this drawback.

Used until 1936, rivet joints were replaced in welded cars with modern ones as less labor-intensive, but it turned out to be less economical due to unscheduled repairs. Based on the foregoing, a mixed rivet-welded joint combines the advantages of welded and riveted joints and at the same time is more crack resistant.

The proposed body design of the gondola car allows you to:

1. To increase the strength of the most damaged nodes connecting the racks of the side walls with the lower strapping of the side walls and with the transverse beams of the frame.

2. Reduce the cost of repairing the mentioned components.

3. Mainly keep the traditional technology of manufacturing a gondola car body, as part of the rivets can be put in the manufacture of side walls. Welds at the bottom of the uprights can be saved because they are in the compressed area and therefore are crack resistant.

To clarify the described object in figures 1, 2, 3, 4 shows the body design of the gondola car with the proposed nodes connecting the racks of the side wall. In FIG. 1 shows a front view of a gondola car body (left symmetrical part). In FIG. 2 node connecting the side wall pillar with the lower trim and the cross beam of the frame. In FIG. 3 sectional view of the side wall strut connection unit with the lower trim and the cross beam of the frame. In FIG. 4 is a top view of the connection of the lower wall trim with the transverse beam of the frame.

The gondola car body (Fig. 1) includes two side walls 1, two end walls 2 and a frame with flooring 3. The side wall includes the upper 4 and lower 5 strapping, a set of intermediate racks 6 and the sheathing fabric 7 with corrugations 8.

The node connecting the side wall of the rack with the lower trim and the transverse beam includes an intermediate strut 6, the lower trim 5 (Fig. 2), the transverse beam of the frame 9 and rivets 10 (Fig. 3).

The connection of the lower trim of the side wall with the upper sheet of the transverse beam of the frame (Fig. 4) includes the lower trim 5 and rivets 10.

Claims (1)

A gondola car body with crack-resistant joints for connecting racks of side walls, lower wall ties and transverse beams of the frame, including side and end walls in the form of frames covered by sheathing sheets, and a frame with a spine beam, end, pivot and intermediate transverse beams, flooring, longitudinal, beams supporting the flooring, characterized in that the upper sheets of the transverse beams at the ends are bent at right angles, overlapping the ends of the beams, the racks are connected to the lower wall trim with rivets, and with the transverse beams frame - rivets and welding.

Images