RU2408484C1 - Body of two-deck passenger car - Google Patents

Abstract

FIELD: transport. ^ SUBSTANCE: invention relates to railroad transport. Proposed body comprises frame with end center girders that have drop-mid section with lengthwise rails, side members 6, 7 with lengthwise plating and lengthwise rails 9, 10 that have their ends connected with crosswise sections 11 and supporting struts 12, face walls 16, 17 and roof 18. Every strut is jointed at the level of floor deck with the end of lengthwise rails 9, 10 and the end of upper brace 14, 15. Lengthwise rails 19, 20 of drop-mid frame and rails 9, 10 of deck floor are jointed with lengthwise rails 3, 4 of the frame cantilever parts by braces 14, 15 arranged in the plane of side member. Inner sides of lengthwise rails 9, 10 of the deck floor have brackets distributed in pairs secured thereto and rigidly jointed to crosswise sections 11. Floor deck lengthwise rails 9, 10 are jointed with opposed faces of top and bottom lateral struts 25, 26 and with outer lining by their lengthwise wall. Every supporting strut 12 rests on joint of rails 19, 20 of said drip-mid frame with its end crosswise beam. ^ EFFECT: higher body structural strength and reduced weight. ^ 2 cl, 4 dwg

Description

The claimed invention relates to the body structure of a two-story car equipped with a floor.

The well-known "Double-decker railway car" (Japan patent No. 2028055, B61D 17/04, B61D 1/06, B61D 13/02, B61D 1/00, B61D 13/00, publication date 01/30/1990, Fig.7), in which side tie rods (5) are located below the level of transitional areas. The lateral tie rods (5, Fig. 8) in conjunction with the transverse stiffeners form the supporting part of the frame.

The main disadvantage of this design: it is technologically difficult to stamp the entire length of the car side rail with angular bends that are mirrored relative to the plane passing through the cross section of the middle of the car body.

The prototype of the claimed invention is "The supporting structure of the body of a double-decker passenger car (USSR author's certificate No. 1402464, B61D 1/00, B61D 17/04, publ. 06/15/88, bull. No. 22), containing longitudinal strapping (1, 2) the cantilever part of the car, the pivot beam (3), the end spinal beam (4), the strapping (5, 6) of the middle part of the frame, the longitudinal strapping (8 and 9) of the middle part between the floors that are connected to the frame by braces (10 and 11). The profile of the braces (10 and 11) with the skin of the sidewalls (12 and 13) forms a closed box section. The braces (14 and 15) connect the harnesses (1 and 2), respectively, with the harnesses (5 and 6).

In the transition zone 16, the beam 17 of the spinal beam has an upper (18) and lower (19) part, supported by vertical walls (20 and 21).

A closed section is formed by profiles of the indicated strappings of the middle part of the side walls and braces together with the skin.

However, this design has several disadvantages:

- the presence in the longitudinal strands (8, 9) of the middle part of the cutouts (22) for placing the vertical struts (23) weakens the rigidity of the longitudinal strands, designed to reduce damage from the collision of cars.

- the presence of the middle lowered part of the spinal beam increases the material consumption of the body.

The task of the invention is to provide the necessary strength of the body of a double-decker passenger car in all modes of operation with a simultaneous reduction in body weight.

For this, the body of a double-decker passenger carriage contains a frame with end spinal beams, with a lowered middle part, with longitudinal strapping of the cantilever part of the frame, with longitudinal strapping of the lower part of the frame, sidewalls with lining and longitudinal strapping of the floor, connected by ends with transverse profiles and reinforcing struts, each of which is connected at the level of the interfloor overlap with the end of the longitudinal strapping of the overlap and with the end of the upper brace, end walls, roof, and the longitudinal strapping of a reduced part These frames and floor strapping are connected to the longitudinal strapping of the cantilever parts of the frame with braces located in the sidewall plane, and each end spinal beam is connected to the lower middle part of the frame by a transition zone beam, which transfers longitudinal forces from the end spinal beam of the console part to the longitudinal strapping of the middle part of the frame . What is new is that on the inner sides of the longitudinal ceiling slabs brackets are distributed in pairs distributed along the sidewalls, rigidly connected to the transverse profiles, the longitudinal ceiling slabs are connected to the opposing ends of the upper and lower side struts and with the outer lining of their longitudinal wall, each reinforcing strut is supported to the connection node of the strapping of the lowered middle part of the frame with the end transverse beam of the lowered part of the frame.

In addition, the transverse profiles and longitudinal strapping of the middle part between the floors are made of tubular rectangular section.

The technical result is expressed in the following.

The presence of brackets distributed in pairs along the sidewalls, rigidly connected to the transverse profiles, will increase the rigidity of the body from the loads applied to it.

The connection of the longitudinal strapping of the floor with the opposing ends of the upper and lower side racks and with the outer skin of its longitudinal wall and the possibility of a reinforcing strut to rely on the connection node of the strapping of the lowered part of the frame with the end transverse beam of the lowered middle part of the frame increases the rigidity and strength of the body.

The accompanying drawings depict:

Figure 1 - section of the body of a two-story car;

Figure 2 - section of the body of a two-story car along the line aa in figure 1;

Figure 3 is a section along the line BB in figure 1;

Figure 4 is a view In figure 3.

The body of a two-story passenger carriage is made in the form of an all-metal welded structure with window and doorways, openings for manholes and is made of various steel rolling and bent profiles and sheet elements. The body contains a frame 1 with end spinal beams 2 (figure 2), with a lowered middle part, with longitudinal strapping 3.4 of the console part of the frame, with longitudinal strapping of the lower part of the frame, with pivot beams 5 (figure 2), sidewalls 6, 7 with the outer skin 8 and longitudinal strapping 9, 10 connected to the transverse profiles 11 (Fig. 1) and reinforcing posts 12, each of which is connected at the level of the floor 13 (Fig. 3) with the ends of the longitudinal strapping 9, 10 (Fig.2) and with the ends of the upper braces 14, 15, the end walls 16, 17, the roof 18.

The longitudinal strapping 19, 20 of the lower part of the frame and the indicated strapping 9, 10 of the floor are connected to the longitudinal strapping 3, 4 of the console parts of the frame with upper braces 14, 15 and lower braces 21, 22 located in the plane of the sidewall 6, 7. Each end spine 2 connected to the lowered middle part of the frame with a beam 23 of the transition zone, providing the transmission of longitudinal forces from the end spinal beam of the cantilever part to the longitudinal strapping of the middle part of the frame. On the inner sides of the longitudinal strapping 9, 10, corner brackets 24 are fixed in pairs distributed along the sides 6, 7, in the areas of the middle of the windows and the middle of the window panes, rigidly connected to the transverse profiles 11. The longitudinal strapping 9, 10 of the ceiling is connected to the opposing ends of the upper 25 and the lower 26 side racks and with the outer skin of its longitudinal wall 27.

Each reinforcing post 12 is supported by a connection node of the strapping 19, 20 of the lowered part of the frame with the end transverse beam 28 of the lowered middle part of the frame.

Cross profiles 11 and longitudinal strapping 9, 10 overlap (figure 2) are made of tubular rectangular section.

Figure 4 shows a longitudinal strapping 10 of a bent channel. The strapping 10 at the junction with the transverse profiles 11 of the overlap 13 is reinforced with plates, has a closed cross section.

The frame design contains only the cantilever parts of the spinal beam, extending to the attachment point of the pivot beams with automatic coupled devices located in them, and transferring the load to the pivot beams.

The body assembly is as follows.

Finished sidewalls are installed on the supporting frame of the body and connected to the frame strapping; reinforcing racks 12 are connected with extreme transverse profiles 11, with strapping 19 and 20 of the lowered middle part of the frame. Then collect the flooring of the upper floor.

Welds are made from the side of the inner surface of the sidewalls 6, 7.

The body of a double-decker car works as follows:

mass loads of the constituent elements of the car transmitted by the body through the supports to the car carts, dynamic loads transmitted to the body from the wheelsets, traction forces during acceleration and braking forces of the moving train transmitted through automatic couplings, as well as loads on the body arising from lifting the car with jacks (especially when lifting the carriage with two diagonal jacks), they are perceived by its supporting structure, formed by the frame, roof, side walls and ceiling. The presence of an additional closed spatial structure built into the power frame of the body, formed by beams and adjacent strapping 3, 4 of the cantilever part of the frame, longitudinal strapping 19, 20 of the lower part of the frame, transverse beams 28 of the body frame, longitudinal strapping 9, 10 floors, reinforcing uprights 12 , side racks 25, 26, braces 14, 15, 21, 22, as well as transverse profiles 11 of the floor, provides a reduction in internal stresses.

As a result, the necessary strength of the body is achieved in all modes of operation of the car, the weight of the body is reduced by eliminating the middle part of the spinal beam.

Claims (2)

1. The body of a double-decker passenger carriage containing a frame with end spinal beams, with a lowered middle part, with longitudinal strapping of the cantilever part of the frame, with longitudinal strapping of the lower part of the frame, sidewall with lining and longitudinal strapping of the floor, connected by ends with transverse profiles and reinforcing struts, each of which is connected at the level of the interfloor overlap with the end of the longitudinal strapping of the overlap and with the end of the upper brace, end walls, roof, and the longitudinal strapping of the lower part of the ra we and the floor strapping are connected to the longitudinal strapping of the cantilever parts of the frame with braces located in the sidewall plane, and each end spinal beam is connected to the lower middle part of the frame by a transition zone beam, which transfers longitudinal forces from the end spinal beam of the cantilever part to the longitudinal strapping of the middle part of the frame, characterized in that on the inner sides of the longitudinal strands of the ceiling are fixed brackets distributed in pairs along the sides, connected rigidly to the transverse profile E, the longitudinal overlapping strapping coupled to the opposing ends of the upper and lower side plates and the outer skin of its longitudinal wall, each underpinning rack resting on binding compound node lowered middle part of the frame with the transverse end beam lower portion of the frame. 2. The body according to claim 1, characterized in that the transverse profiles and longitudinal strapping of the floor are made of tubular rectangular section.

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