CN200988491Y - Side wall structure of railway vehicle body - Google Patents

Abstract

The side wall structure of the rail vehicle body described in the utility model adopts an integral stiffener plate in the side wall of the car body to replace the existing reinforcement beam, so as to improve the flatness and bearing capacity of the reinforced outer plate the goal of. Its side wall structure has a side wall skeleton composed of several vertical columns and horizontal beams overlapped with each other; each adjacent column and beam is connected and fixed by a connecting plate; each adjacent In the frame composed of upright columns and beams, there is an integral rib plate connected respectively; on the outside of the side wall skeleton and several inner rib plates of the frame, a layer of outer plate structure is connected by spot welding.

Description

Rail vehicle body side wall structure

technical field

The utility model relates to a novel car body structure, in particular an inner rib plate structure adopted in a stainless steel side wall of a rail vehicle to strengthen the flatness of the outer plate of the car body, and belongs to the field of mechanical manufacturing.

Background technique

With the development of my country's social economy, urban rail transit has been greatly popularized and promoted. In order to ensure the high-speed operation and comfort of rail vehicles, it is necessary to improve the flatness of the outer panels of the side walls of the vehicle body. At the same time, in order to save operating costs and realize the lightweight of the car body, it is also necessary to adopt a thin-walled side wall structure. However, it is relatively difficult to ensure the flatness of the thin-walled side wall outer panels of existing rail vehicles.

Usually, in order to ensure the flatness of the thin-walled outer plate of the rail vehicle, a reinforcing beam is welded correspondingly at the gap of the structural beam to achieve the purpose of reinforcing the outer plate. However, the use of this kind of reinforcing beam can only reinforce the outer panel and increase the rigidity of the outer panel, and cannot effectively participate in the load bearing of the entire vehicle body. At the same time, due to the large number of reinforcing beams that need to be welded, the flatness of the beam-column skeleton structure composed of them cannot be guaranteed. Moreover, the technology of welding the reinforcing beam is complicated, and it is difficult to control the quality of the car body processing in the actual production process.

Utility model content

The rail vehicle body side wall structure described in the utility model is to solve the above-mentioned problems and deficiencies by adopting an integral stiffener plate in the car body side wall to replace the reinforcing method of the existing reinforcing beam.

One of the design purposes of the utility model is to replace the reinforcing beam with the inner layer rib plate formed by integral stamping, and realize the flatness of the reinforced outer plate by welding the inner layer rib plate in the framework of the car body side wall skeleton.

Another design purpose of the utility model is to further improve the overall bearing capacity of the rail vehicle by participating in the load bearing of the side wall of the overall car body through the inner ribs in the frame.

In order to achieve the above design purpose, the side wall structure of the rail vehicle body has:

The side wall skeleton is composed of several vertical columns and horizontal beams overlapping each other;

At the lap joints of each adjacent column and beam, connect and fix them through a connecting plate;

In the frame formed by each adjacent column and beam, an integral inner rib is connected respectively;

On the outside of the side wall frame and several inner ribs of the frame, a layer of outer plate structure is connected by spot welding.

The side wall structure of the rail vehicle body such as the content of the above scheme changes the side wall reinforcement structure of the existing partial reinforcement beams, and unifies these reinforcement beams into an integral component, and realizes In order to determine the design effect of the flatness of the outer plate by the flatness of the inner rib plate. After the inner rib plate is welded to the side wall frame, it can also effectively disperse the load weight, so that the overall stress concentration of the side wall is greatly reduced.

The inner rib plate is formed by integral stamping and drawing, and has protruding and regularly arranged ring-shaped reinforcing protrusions on one side.

Through the comparison of stress and load tests, in order to improve the bearing capacity of the overall side wall frame after connecting the inner ribs, the inner ribs described in the utility model have the following three structural arrangements for the ring-shaped reinforcing protrusions on the side .

The first structural mode is that a group of annular protrusions arranged in the horizontal direction is provided on the side of the inner rib.

The second structural mode is that the inner ribs may also be provided with a group of ring-shaped protrusions arranged in a vertical direction on its side.

The third structure is that a group of ring-shaped protrusions arranged in the vertical direction and horizontal direction are respectively arranged on the side of the inner rib plate, and the outer edges of the two groups of ring-shaped protrusions are connected to each other to form a whole formula structure.

In order to strengthen the operability of the production process and improve the bearing capacity of the side wall frame, the further improved design of the utility model is that on both sides of the side wall frame formed by overlapping vertical columns and horizontal beams, they are respectively connected by point-fixing technology. The connecting plate and the inner rib;

That is, the connecting plate is connected to the inner side of the lap joint of the side wall skeleton;

On the outside of each frame of the side wall skeleton, the inner ribs are respectively connected.

The cross-sectional shape of the column and the beam is "U".

The connecting plate has a planar structure in the shape of a "cross".

In summary, the rail vehicle body side wall structure has the following advantages:

1. In the side wall structure of the rail vehicle body adopting the above scheme, the overall stamped inner rib plate has a higher load transfer capacity, and correspondingly reduces the weight of the side wall of the car body.

2. The overall side wall has a high surface flatness, which reduces the workload of leveling the outer panel and improves the appearance of the car body.

3. Simplify the overall processing technology of the side wall, especially reduce the programming workload of the automatic spot welding machine.

Description of drawings

Now in conjunction with following accompanying drawing, the utility model is described further

Fig. 1 is a partial structural diagram of the side wall of the rail vehicle body;

Fig. 2 is a schematic diagram of a single frame structure;

Fig. 3 is A-A to sectional view among Fig. 2;

Fig. 4 is the planar and lateral structural contrast diagram of described inner rib;

Fig. 5 is the planar and cross-sectional structure comparison diagram of described column;

Fig. 6 is the planar and cross-sectional structure comparison diagram of described beam;

Fig. 7 is a plane and a side structure comparison diagram of the connecting plate;

Fig. 8 is a structural diagram of the outer plate;

Fig. 9 and Fig. 10 are respectively schematic diagrams of inner ribs with annular protrusions of other shapes.

As shown in Fig. 1 to Fig. 8, side wall 1, vehicle window 2, column 3, beam 4, connecting plate 5, inner rib plate 6, outer plate 7, rib plate annular protrusion 8, spot-fixed or spot-welded Processing point 9.

Detailed ways

Embodiment 1, as shown in Figures 1 to 8, the car body side wall 1 of the rail vehicle has a side wall skeleton composed of several vertical columns 3 and horizontal beams 4 overlapped with each other. A connecting plate 5 is connected.

In each skeleton frame, an integral inner rib plate 6 is connected.

On the outside of the side wall frame and the inner rib plate 6, a layer of outer plate 7 is connected by spot welding.

During production and processing, the existing plate girder reinforcement structure is replaced by the integrally stamped and formed inner rib plate 6 .

Position the rectangular frame formed by spot welding first, and then fix the inner rib plate at 6 points between the frame.

As shown in Fig. 3, at the point 9 of spot-fixing or spot-welding processing, the outer plate 7, the inner rib plate 6 and the skeleton are processed into a unified body.

The inner rib plate 6 formed by drawing forming can be made of stainless steel.

As shown in Figure 4, the side of the inner rib 6 is provided with ring-shaped projections 8 arranged in the vertical and horizontal directions, and the outer edges of the two sets of ring-shaped projections 8 are connected to each other to form a whole formula structure.

The following structural scheme can also be adopted. As shown in FIG. 9 , the inner rib 6 is provided with a group of annular protrusions 8 arranged in the horizontal direction on its side.

Alternatively, as shown in FIG. 10 , the inner rib 6 is provided with a group of ring-shaped protrusions 8 arranged vertically on its side.

Claims (8)

1. A rail vehicle body side wall structure, characterized in that: it has a side wall skeleton composed of several vertical columns and horizontal beams overlapping each other; At the lap joints of each adjacent column and beam, connect and fix them through a connecting plate; In the frame formed by each adjacent column and beam, an integral inner rib is connected respectively; On the outside of the side wall frame and several inner ribs of the frame, a layer of outer plate structure is connected by spot welding. 2. The rail vehicle body side wall structure according to claim 1, characterized in that: one side of the inner rib plate has protruding and regularly arranged ring-shaped reinforcing protrusions. 3. The rail vehicle body side wall structure according to claim 2, characterized in that: a group of annular protrusions arranged in a horizontal direction are arranged on the side of the inner rib. 4. The rail vehicle body side wall structure according to claim 2, wherein a group of ring-shaped protrusions arranged in a vertical direction are arranged on the side of the inner rib. 5. The rail vehicle body side wall structure according to claim 2, characterized in that: on the sides of the inner ribs, a group of ring-shaped protrusions arranged in the vertical direction and the horizontal direction are arranged respectively, and two groups of The outer edges of the annular protrusions are connected to each other to form an integral structure. 6. The rail vehicle body side wall structure according to claim 3, 4 or 5, characterized in that: on both sides of the side wall skeleton formed by the overlapped columns and beams, the said side walls are respectively connected by a spot-fixing process. Connecting plates and inner ribs; Connect the connecting plate on the inner side of the lap joint of the side wall frame; On the outside of each frame of the side wall skeleton, the inner ribs are respectively connected. 7. The rail vehicle body side wall structure according to claim 6, wherein the cross-sectional shape of the column and the cross beam is "U". 8. The rail vehicle body side wall structure according to claim 7, characterized in that the connecting plate has a plane structure in the shape of a "cross".

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