RU2502624C1 - Metro car body - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to railway transport. Metro car body comprises frame 1, head part 3, end wall 4, roof 5 and two sidewalls 2 with top and bottom belts. Wall bottom belts is composed of unequal channel with large flange arranged horizontally and smaller located downward at outer side of wall 2 inclined to frame 1. Angle of inclination makes ±3°. Roof 5 with lengthwise structural element on both sides inside the body is installed at top belt of walls 2. Roof bottom belt is composed of vertical flange, mid flange and top flange. Pimple is arranged at mid flange to accommodate roof facing sheets. Extra lengthwise structural elements are arranged along sidewalls 2 and roof 5 inside the body above door openings. Body frame 1 comprises two body bolsters with seats for pneumatic springs. Every said bolster is furnished with stiffness ribs.

EFFECT: longer life, higher strength.

2 cl, 10 dwg

Description

The invention relates to railway transport, and in particular to the bodies of a rail vehicle, in particular a subway car.

A known subway car body mounted on a frame and comprising a device for connecting a side wall to a car roof including a longitudinal roof stiffener rigidly connected to form a closed profile with a longitudinal side wall stiffener installed with an upper part inside a longitudinal roof stiffener having stiffeners its inner surface (US Pat. RF No. 2249520, IPC B61D 17/04, 04/10/2005).

The well-known subway car body does not provide a standard service life when installing modern climate control equipment and traction drive to increase passenger comfort due to insufficient body strength.

The closest to the claimed invention in terms of essential features is the subway car body containing a frame with pivot beams with slots for installing air springs, side walls made of interconnected vertical pillars, window sills, upper and lower belts, a body roof with a lower belt ( longitudinal roof stiffening element) mounted on the upper belt of the side walls, and having longitudinal power elements inside the body and covering sheets (see. "Mechanical equipment wagon s 81-740.1, 81-741.1 Rusich, edited by V.N. Garanin, Training and Production Center of the Moscow Metro, M., 2008, p. 4, 6, 11-18, 22).

This subway car body does not provide a modern level of comfort for passengers with an increase in passenger traffic.

The objective of the invention is the creation of the body of a subway car, which allows to increase the service life of the car and provide a modern level of comfort for passengers with low material costs.

The technical result in the implementation of the invention is to increase the life of the body while ensuring a modern level of requirements for passenger comfort by increasing the strength of the body.

The specified technical result is achieved in that the subway car body comprising a frame with pivot beams with sockets for installing air springs, side walls made of interconnected vertical struts, window sills, upper and lower belts, a body roof with a lower belt mounted on the upper a belt of side walls and having longitudinal power elements inside the body and casing sheets, the body is equipped with additional longitudinal power elements installed along the upper belt of the side walls ok and a roof over the doorways, and the lower roof belt is made in the form of a vertical shelf and the middle and upper shelves located obliquely to it, while the middle shelf is stamped to accommodate the sheathing sheets, and the lower belt of the side walls is made in the form of an unequal corner, large whose shelf is horizontal, the smaller shelf is directed downward and located on the outside of the side wall mounted obliquely to the frame.

In addition, each socket for installing the air spring is made in the form of a shell embedded in the shell beam with a support platform, while the bottom sheet of the pivot beam at the ends has an extension for installing the socket.

Figure 1 shows the body of the subway car, a General view;

figure 2 shows the side wall of the body;

figure 3 shows a section aa in figure 2;

figure 4 shows a section bB in figure 2 with the slope of the side wall;

figure 5 shows a section bb in figure 2;

figure 6 shows a section GG in figure 2;

7 shows a body frame with pivot beams;

Fig. 8 shows a pivot beam, general view;

in Fig.9 shows a pivot beam, view E in Fig.8;

figure 10 shows the pivot beam, view D in figure 7.

The body of the subway car is made all-metal, welded, contains a frame 1, two side walls 2, a head part 3, an end wall 4 and a roof 5 (Fig. 1).

The side walls 2 of the body are rigidly mounted on the frame 1 and each is made of interconnected vertical struts 6, horizontal window sills 7, vertical window sills 8, upper belt 9 and lower belt 10 (figure 2).

Window openings 11 are made in the side walls 2 of the body, which are framed by vertical side racks 12, and the horizontal window sills 7 are located at a height h from the lower belt 10 of the side walls 2, and the ratio of the height h to the height H of the location of the upper belt 9 is in the proportion of “golden sections ". Under the horizontal window sill 7, between the vertical uprights 6, four vertical window sills 8 are evenly spaced.

The upper belt 9 of the wall 2 is made in the form of an open profile of an unequal channel, the inner vertical shelf of which is higher in height than the external vertical shelf and has a bent part 13 at the end (Fig. 3).

The lower belt 10 of the wall 2 is made in the form of an unequal corner, the large shelf of which is horizontal, the smaller shelf is directed downward and located on the outside of the side wall 2, inclined to the frame 1, and the angle of inclination is approximately ± 3 degrees (figure 4) .

On the upper girdle 9 of the walls 2, a roof 5 with a lower girdle 14 is installed, having a longitudinal power element 15 on both sides inside the body in the form of an open profile, for example, a corner, installed in the zone of air conditioners (Fig. 5).

The lower belt 14 of the roof is made in the form of a vertical shelf and the middle and upper shelves located obliquely to it, while on the middle shelf the stamping 16 is made to accommodate the roof sheathing sheets 17.

Along the interconnected upper zone 9 of the side walls 2 and the lower zone of the roof 14, additional longitudinal power elements 18 are installed on the inside of the body above the doorways, having, for example, a corner shape. One end of the corner is connected to the roof 5, and the other end of the corner is connected to the upper belt 9 of the side walls 2, namely, the inner vertical shelf (Fig.6).

To evenly distribute the weight of roof equipment, such as air conditioners, to the side walls and the frame of the car body, all areas of roof equipment placement on both sides of the car are selected in such a way that the inner edge of the zone is located above the vertical rack 6, the outer edge of the zone is located above the end wall 4, and in the middle between the vertical strut 6 and the end wall 4 is installed another vertical strut 6 (figure 2).

The frame 1 of the body contains two pivot beams 19 (Fig. 7) having slots 20 for installing air springs (Fig. 8). Each pivot beam 19 consists of two sheets welded together: the upper horizontal sheet 21 and the lower horizontal sheet 22 and the stiffeners 23. The end parts of the beam 24 are made expanded, and the lower sheet of the pivot beam compared to the upper sheet at the ends has a larger expansion for installation nests under the air spring. Nests 20 are made in the form of a shell 25 with a support platform 26 buried inside the beam 19. In the center of the support platform 26, a quick-disconnect assembly of a pneumatic connection 27 is installed for supplying compressed air to the air spring, and holes 28 for supplying pipelines 29 are made in the stiffening ribs 23 of the pivot beam 19 to each quick disconnect node of the pneumatic connection 27. Depth of the air spring allows to reduce the step between the floor of the car and the station platform to ensure the passage of a wheelchair user.

Such a structural approach to optimizing structural strength at critical power points allows to increase the strength and stiffness characteristics of the body in conditions of severe weight restriction.

Increasing body rigidity provides an increase in the body's own bending vibration frequency, leading it away from a zone unfavorable to humans, and thereby increasing the comfort of passengers.

The body of the subway car is designed to accommodate passengers during their transportation with the necessary level of comfort, and contains the installation of climatic, information and lighting equipment, shock-traction and coupling equipment, brake, pneumatic, electrical equipment, traction drive elements and security systems.

The body of the subway car works as follows.

Due to the tortuous movement of the crew, the irregularities of the rail track and the joints of the rail, the wagon body vibrates in horizontal and vertical planes, undergoes torsion during the passage of curved sections of the track and experiences static and dynamic loads from the weight of passengers and equipment. To ensure a long service life, quality and comfort of movement, the body must have high static strength and rigidity.

Vyshtampovki 16 to accommodate roof sheathing sheets, longitudinal force elements 15, additional longitudinal force elements 18, placed along the edges in the upper part of the cross-section of the body, and lower belts 10 of the side walls, placed on the edges in the lower part of the cross-section of the body, most effectively increase the moment body resistance to bending and, thereby, increase the strength and stiffness of the body, while the longitudinal force elements 15 and additional longitudinal force elements 18, placed in critical from the point of view agruzhennosti body areas - areas of the installation of air conditioners and over doorways - provide a uniform distribution of hardness in the upper part of the body, thereby increasing the service life of the car.

Claims (2)

1. The body of the subway car, comprising a frame with pivot beams with slots for installing air springs, side walls made of interconnected vertical struts, window sills, upper and lower belts, a body roof with a lower belt mounted on the upper belt of the side walls and having longitudinal power elements inside the body and cladding sheets, characterized in that the body is equipped with additional longitudinal power elements installed along the upper belt of the side walls and the roof above the doorway and, and the lower roof belt is made in the form of a vertical shelf and the middle and upper shelves located obliquely to it, while the middle shelf is stamped to accommodate the sheathing sheets, and the lower belt of the side walls is made in the form of an unequal corner, a large shelf of which is horizontal, the smaller shelf is directed downward and located on the outside of the side wall mounted obliquely to the frame. 2. The body according to claim 1, characterized in that each socket for installing an air spring is made in the form of a shell embedded in a shell with a support platform, while the bottom sheet of the pivot beam at the ends has an extension for installing the socket.

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