CN113232683B

CN113232683B - Rail vehicle body

Info

Publication number: CN113232683B
Application number: CN202110666667.5A
Authority: CN
Inventors: 岳译新; 金希红; 苏柯; 刘永强; 苑明; 王国军; 柳颖娇
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2023-02-10
Anticipated expiration: 2041-06-16
Also published as: CN113232683A

Abstract

The invention provides a rail vehicle body, which comprises a roof, side walls, an underframe side beam and a door upright post, wherein sectional material cavities are arranged in the end heads of the roof, the end heads of the side walls and the underframe side beam, notches are arranged on the same longitudinal positions of all the sectional material cavities of the side walls, which are close to the end parts of the door upright post or/and the side wall of the vehicle body, and the notches enable the cavities of all the sectional materials of the side walls to be communicated with a first drainage cavity of the underframe side beam up and down; a drain pipe is arranged in the bottom of the first drain cavity, and the outlet end of the drain pipe is communicated with the outside of the vehicle body. The invention has simple structure, keeps the integrity of welding seams, is easy for modular production, improves the production efficiency, is convenient to operate, reduces the limitation on an operation field, has controllable drainage path, more thorough drainage effect and high drainage speed.

Description

Rail vehicle body

Technical Field

The invention relates to a rail vehicle body, in particular to a high-speed train body with a condensed water drainage channel.

Background

For the car body without the air tightness requirement, water (or condensed water) in a car body cavity is discharged by forming a small hole on the edge beam of the underframe, but the car body is not suitable for the car body with the air tightness requirement. Publication No. CN 104002827A discloses a high-speed EMUs aluminum alloy automobile body with comdenstion water discharges structure, including headwall, roof, side wall, chassis, its characterized in that: drainage notches are formed in four corners of the roof air conditioner frame, condensed water in a roof cavity is drained, drain holes are formed in the positions, at the joints of the side walls and the side beams of the bottom frame, of the side walls, the condensed water gathered in the side wall cavity by the sectional materials is drained into the floor interlayer, a drain groove communicated with the cavity is formed in the bottom of the end wall plate, the end walls are provided with the drain holes, and the bottom frame floor is provided with a plurality of drain holes for draining the condensed water in the floor interlayer. However, the technical scheme has the following defects: 1. the drain holes are formed in the connecting welding seams of the side walls and the side beams of the underframe, so that a plurality of welding seams are broken, and the stress and the fatigue performance of the welding seams are influenced to a certain extent. 2. The path of the condensed water after flowing out of the drain hole is not controllable, and the condensed water may flow around on the under-frame floor before being drained out of the vehicle body through the floor drain hole, resulting in a large area of the floor being in a wet environment for a long time. 3. The chassis floor is provided with a plurality of drain holes, the plug is required to be manually screwed off under the chassis during drainage, the plug is screwed down after the drainage is finished, the operation is inconvenient by means of a trench (or a vehicle is erected). The motor train unit and the high-speed rail have long operation distance and large temperature difference, and a cavity of a train body inevitably generates condensed water; possibly due to failure of the external seal, rainwater enters the cavity of the vehicle body, and water (or condensed water) corrodes the vehicle body. If water accumulates too much and forms ice at low temperatures, severe consequences of freezing the body cavity can occur due to volume expansion. Therefore, it is urgently needed to develop a vehicle body with a drainage function, which has a simple structure and is convenient to operate.

Disclosure of Invention

The invention aims to provide a railway vehicle body with a condensed water drainage channel and good air tightness, which is easier to drain condensed water than the prior art and does not influence the structural strength of the vehicle body.

The technical scheme provided by the invention is as follows: notches (2 a) are formed in the same longitudinal position, close to the end part of the door upright post or/and the side wall of the vehicle body, of all section bar cavities of the side wall, and the notches enable the cavities of all section bars of the side wall to be communicated with a first drainage cavity (3 d) of the side beam of the underframe from top to bottom; a drain pipe (7) is arranged at the bottom of the first drain cavity (3 d), and the outlet end (7 a) of the drain pipe (7) is communicated with the outside of the vehicle body.

Through above-mentioned structure, the breach of seting up on the comdenstion water that produces in the car body side wall or the infiltration passes through longitudinal position collects the first drainage chamber in the chassis boundary beam, directly discharges outside the automobile body through the drain pipe that sets up in first drainage chamber bottom. The drainage channel has good air tightness, and the drainage path is determined and unobstructed, so that water is not easy to stay in the vehicle body.

By "longitudinal" is conventionally meant the length direction of the vehicle.

The outlet of the drain pipe can be provided with a plug, such as a screw plug, so as to further improve the air tightness.

Preferably, when the vehicle is installed, in order to guarantee the drainage effect, the bottom plate (3 b) in the first drainage cavity or/and the second drainage cavity in the side beam of the underframe is designed to be lower than the floor of the vehicle.

The vehicle body side wall portion has a door frame structure. In the invention, a threshold is arranged on a bottom plate (3 b) of a first drainage cavity (3 d) of the side beam of the underframe, and the threshold and the bottom plate (3 b) enclose a second drainage cavity (6 b).

According to one embodiment of the invention, the bottom plate (3 b) is an L-shaped bottom plate (3 b) arranged between the outer side wall plate (3 c) and the upper wall plate (3 a) of the edge beam of the underframe, and the L-shaped bottom plate and the outer side wall plate (3 c) form a first drainage cavity.

According to the embodiment, the doorsill is arranged on the bottom plate (3 b) of the side beam of the underframe, the section bar of the doorsill is L-shaped, the long edge of the doorsill is a tread, the end part of the short edge of the doorsill is fixedly connected with the bottom plate (3 b) of the side beam of the underframe, and the doorsill and the L-shaped bottom plate form a second drainage cavity (6 b).

According to another embodiment of the invention, the bottom plate of the drainage cavity (3 d) of the edge beam of the underframe is a flat plate arranged between the outer side wall plate (3 c) of the edge beam of the underframe and the upper wall plate (3 a) of the edge beam of the underframe, and the bottom plate (3 b') is as high as the upper wall plate (3 a).

According to the embodiment, the doorsill is arranged on the bottom plate (3 b) of the first drainage cavity (3 d) of the edge beam of the underframe, the section bar of the doorsill is in an inverted U shape, the horizontal edge is a tread, the end parts of the two vertical edges are fixedly connected with the bottom plate (3 b) of the edge beam of the underframe and form a second drainage cavity (6 b) with the bottom plate.

From automobile body overall structure, because still be equipped with door frame and window frame on the automobile body side wall, consequently, can divide into a plurality of pieces with the automobile body side wall, first drainage chamber between each piece is separated, consequently, first drainage chamber bottom in every piece all is equipped with drain pipe, independent drainage.

The invention provides another technical scheme with the same inventive concept as the technical scheme, namely on the basis of the technical scheme, the first drainage cavity is communicated with the second drainage cavity, so that all the first drainage cavities and the second drainage cavities on the side beam of the underframe are communicated.

It is further preferable that the first drain chamber and the second drain chamber are integrally connected by an independent gate angle. And the underframe boundary beam drainage cavity 3d below the side wall and the door opening area drainage cavity 6b are connected into 1 integral drainage cavity through the independent door corner 5. The independent door angle 5 and door sill 6 also provide an interface for door installation.

It is also preferred that the drain pipe (7) is provided only in the first drain chamber at the end of the vehicle body. Since there are usually a plurality of rocker panels on a vehicle body, there are a plurality of second drain chambers and a plurality of first drain chambers. Therefore, one drain pipe is provided in each of the first drain chambers at both end portions of the vehicle body. The two drain pipes are communicated through the plurality of first drain cavities and the second drain cavity.

In addition, in consideration of the fact that condensed water or leakage water can be generated in the cavity of the roof profile, in the invention, water in the roof cavity flows into the roof side beam through the roof end, then flows into the side wall through the roof side beam end, then flows into the chassis side beam along the side wall, and finally is discharged out of the vehicle through the chassis side beam. A notch is processed at the lower part in the cavity of the roof camber beam (or the sealing plate) to form 1 drainage channel with the roof camber beam 11, and water can flow into the side wall drainage channel along the drainage channel.

The invention has simple structure, keeps the integrity of the welding seam between the vehicle body and the underframe, is easy for modular production, improves the production efficiency, is convenient to operate, reduces the limitation on the operation field, and has controllable drainage path, more thorough drainage effect and high drainage speed.

Drawings

FIG. 1 is a schematic view of a vehicle body structure according to an embodiment of the present invention.

Fig. 2 is a schematic connection diagram of a side wall and a door pillar in the embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of the underframe side sill in example 1 of the invention.

Fig. 4 is a schematic view of the connection between the underframe side sill and the sill in embodiment 1 of the invention.

Fig. 5 is a schematic view of the connection between the edge beam of the underframe and the drain pipe in embodiment 1 of the invention.

Fig. 6 is a schematic cross-sectional view of the underframe side beam in embodiment 2 of the invention.

Fig. 7 is a schematic view of the connection between the edge beam of the underframe and the drain pipe in embodiment 2 of the invention.

Fig. 8 is a schematic view showing the connection between the underframe edge beam and the threshold in embodiment 2 of the invention.

Fig. 9 is a schematic view of the connection of the roof and the roof bow according to the embodiment of the present invention.

Fig. 10 is a schematic view of the structure of the independent door corner.

Fig. 11 is a schematic view of the structure of the underframe edge beam and the drain pipe in embodiment 3 of the invention.

The structure comprises 1-a roof, 11-a roof camber beam, 1 a-a roof camber beam notch, 2-a side wall, 2 a-a rectangular notch, 3-an underframe side beam, 3 a-an upper wall plate, 3 b-a bottom plate, 3 c-an outer side wall plate, 3 d-a first drainage cavity, 3 e-a round hole, 4-a door column, 5-an independent door corner, 6-an L-shaped doorsill, 6 a-a groove, 6 b-a second drainage cavity, 7-a drainage pipe, 7 a-a drainage pipe opening, 8-a sealing plate and 9-a plug.

Detailed Description

Example 1

Referring to fig. 1 and 2, a rail vehicle body provided by the embodiment of the invention comprises a roof 1, a side wall 2, an underframe side beam 3 and a door pillar 4, wherein sectional material cavities are arranged in the end head of the roof, the end head of the side wall, the underframe side beam and the door pillar. The same longitudinal position of all section bar cavities of the side wall 2, which is close to the end part of the door upright post 4 or/and the side wall of the vehicle body, is provided with a gap 2a, the gaps enable the cavities of all section bars of the side wall to be communicated up and down, a vertical drainage channel is formed by the outer wall surface of the door upright post 4, and the channel extends to the upper cavity of the side frame 3.

Referring to fig. 9, a notch 1a is formed in the cavity at the end of the section bar of the roof 1 to form a drainage channel with the curved roof beam 11 (or the closing plate), and water can flow into the side wall along the drainage channel.

Referring to fig. 3, fig. 3 is a schematic cross-sectional view of the underframe side sill 3 according to embodiment 1 of the invention. The height of the upper wall plate 3a is consistent with that of the bottom frame floor, the inner rib plate 3b is designed to be L-shaped and lower than the upper wall plate 3a, and a first drainage cavity 3d is formed by the inner rib plate 3b and the outer wall plate 3c and is positioned below the side wall.

Fig. 4 is a schematic view of the connection between the underframe side sill 3 and the rocker 6. In the door opening area, the doorsill 6 is designed to be L-shaped, the two ends of the doorsill are provided with grooves 6a, a drainage cavity is formed by welding the doorsill and the inner rib plate 3b of the side beam 3 of the underframe, and then the first drainage cavity 3d below the side wall and the second drainage cavity 6b in the door opening area are connected into a whole through the independent door corner 5 (refer to fig. 1 and 10). The independent door angle 5 and door sill 6 simultaneously provide an interface for door installation.

Fig. 5 is a schematic view of the connection of the underframe edge beam 3 and the drain pipe 7. When first drainage chamber in chassis boundary beam 3 and the equal UNICOM in second drainage chamber are integrative, drain pipe 7 only sets up the both ends head at chassis boundary beam 3, set up round hole 3e on inside gusset 3b, the one end of drain pipe 7 is connected and the tube head sinks into chassis boundary beam 3 with chassis boundary beam 3, the pipe must not stick out the upper surface of the inside gusset 3b of L shape after welding, in order to guarantee that the drainage is unobstructed and not ponding, other end mouth of a drain 7a is connected with shrouding 8, and set up the screw thread in the mouth of a drain, the mouth of a drain can be sealed to plug 9, reach sealed effect.

When water (or condensed water) exists in the cavity of the roof or the side wall, the water flows into the roof side beam through the end of the roof, then flows into the side wall through the roof side beam, then enters the first drainage cavity 3d of the side frame 3 of the underframe along the drainage channel of the door upright post 4, and finally is discharged out of the vehicle through the drainage pipe 7 at the end of the side frame 3 of the underframe. Because water is discharged according to a designed path, the number of the screw plugs 9 is small, and the discharge end of the drain pipe 7 is arranged at the end wall of the vehicle body, so that the water discharging device is convenient to operate, is not limited by a field, can discharge water in time, and reduces the storage time of the water in the cavity of the underframe and the corrosion of the water to the vehicle body to the maximum extent.

Referring to the arrows in fig. 1, the direction of water flow is indicated.

Example 2

As shown in fig. 6, the present embodiment 2 provides another technical solution. The upper wall plate 3a and the inner rib plate 3b of the side beam 3 of the underframe are equal in height, and the inner rib plate 3b and the outer side wall plate 3c in the side beam of the underframe form a first drainage channel 3d.

Referring to fig. 7, in the door opening area, the door sill 6 is designed into a U shape, the end of the door sill 6 is provided with a groove 6a, the groove and the inner rib plate 3b of the underframe edge beam 3 are welded to form a second drainage cavity 6 b', and then the first drainage cavity below the side wall and the second drainage cavity in the door opening area are connected into a whole by adjusting the structure of the independent door corner 5.

Fig. 8 is a schematic structural view of the underframe edge beam in this embodiment. Wherein the drain pipe 7 is provided in the same manner as in embodiment 1.

Example 3

The embodiment of the invention also provides an arrangement design of the drain pipe 7. The design is suitable for the arrangement scheme of the drain pipe when the first drain cavity is not communicated with the second drain cavity, particularly when the structure in the embodiment is adopted by the side beam of the underframe and the second drain cavity cannot be arranged because the inverted U-shaped doorsill in the embodiment 2 is not adopted in the doorframe. Referring to fig. 11, in this embodiment, the drain pipe 7 penetrates the underframe side sill 3 and drains water through the lower surface of the underframe side sill. The structure of the drain pipe itself is the same as that of the other embodiments.

Claims

1. A rail vehicle body comprises a roof (1), side walls (2), an underframe boundary beam (3) and a door upright post (4), wherein sectional material cavities are arranged in the end heads of the roof, the end heads of the side walls and the underframe boundary beam, and the rail vehicle body is characterized in that notches (2 a) are formed in the same longitudinal position of all the sectional material cavities of the side walls (2) close to the end parts of the door upright post (4) or/and the side wall of the vehicle body, and the notches enable all the sectional material cavities of the side walls to be communicated with a first drainage cavity (3 d) of the underframe boundary beam from top to bottom; a drain pipe (7) is arranged in the bottom of the first drain cavity (3 d), and the outlet end (7 a) of the drain pipe (7) is communicated with the outside of the vehicle body.

2. The rail vehicle car body according to claim 1, wherein the floor (3 b) is below the level of the vehicle floor.

3. The rail vehicle car body according to claim 1, characterized in that the floor (3 b) is an L-shaped floor (3 b) arranged between the underframe edge rail outer side wall plate (3 c) and the underframe edge rail upper wall plate (3 a), which L-shaped floor and outer side wall plate form a first drainage chamber (3 d), the floor (3 b) being lower than the height of the upper wall plate (3 a).

4. A rail vehicle car body according to claim 3, characterised in that a threshold is arranged above the L-shaped floor (3 b) of the underframe edge beam, the profile of the threshold being L-shaped, the long side being the tread, and the end of the short side being fixedly connected to the L-shaped floor (3 b) of the underframe edge beam and forming a second drainage chamber (6 b) with the L-shaped floor.

5. The rail vehicle car body according to claim 1, characterized in that the floor (3 b) of the first drainage chamber (3 d) of the underframe edge rail is a flat plate arranged between the outer side wall plate (3 c) of the underframe edge rail and the upper wall plate (3 a) of the underframe edge rail, the floor (3 b) being at the same height as the upper wall plate (3 a).

6. The rail vehicle car body according to claim 5, characterized in that the threshold (6) is arranged above the floor (3 b) of the sill edge, the profile of the threshold (6) is of inverted U shape, the horizontal edge is a tread, the ends of the two upright edges are fixedly connected to the floor (3 b) of the sill edge and form a second drainage chamber (6 b) with the floor.

7. The rail vehicle car body according to claim 1, further comprising a roof (1), wherein water in the roof profile cavity flows into the roof camber beam (11) through the end of the roof, flows into the side wall through the end of the roof camber beam (11), flows into the chassis side beam along the notch (2 a) formed in the same longitudinal position of the end of the side wall, and is finally discharged out of the car through the drain pipe (7) formed in the chassis side beam (3).

8. A rail vehicle body comprises a roof (1), side walls (2), an underframe boundary beam (3), a door upright post (4) and a doorsill (6), wherein sectional material cavities are arranged in the end of the roof (1), the end of the side walls (2), the underframe boundary beam (3) and the door upright post (4), and the rail vehicle body is characterized in that notches (2 a) are formed in the same positions, close to the end parts of the door upright post and the car body side wall, of all cavity walls of the side wall sectional materials, and the notches enable the cavities of all the sectional materials of the side wall to be vertically communicated with a first drainage cavity (3 d) of the underframe boundary beam; the doorsill (6) is arranged on the bottom plate (3 b) of the side beam of the underframe and surrounds the bottom plate (3 b) to form a second drainage cavity (6 b); the first drainage cavity is communicated with the second drainage cavity, so that all the first drainage cavities and the second drainage cavities on the side beam of the underframe are communicated, and a drainage pipe (7) is arranged on a bottom plate (3 b) of the side beam (3) of the underframe.

9. Rail vehicle car body according to claim 8, characterized in that the drain pipes are provided only on the floor (3 b) near the ends of the car body, one drain pipe (7) being provided on the floor at each of the two ends of the car body, the two drain pipes being interconnected by the first and second drain chambers.

10. The rail vehicle car body according to claim 8, characterized in that the first drainage chamber is integrated with the second drainage chamber by means of an independent door angle (5), and the drain pipe (7) is arranged in the first drainage chamber at the end of the car body.