CN201980238U - Rail vehicle equipment compartment base board - Google Patents

Abstract

The bottom plate of the rail vehicle equipment compartment described in the utility model adopts the basic structure of riveting rib plates on both sides of the single-layer stainless steel corrugated plate, and the multi-point fastening method that improves the safety redundancy is added on the bottom plate, and the bottom plate and The fixed structure between the frame of the equipment compartment is designed to achieve both the lightweight design of the bottom plate and the requirements for installation stability. Both ends of the bottom plate of the equipment compartment are lapped to the framework of the equipment compartment. The bottom plate consists of a single-layer corrugated plate, and the ribs are riveted on both sides of the corrugated plate by several ring groove rivets; each side of the ribs is respectively provided with flanging; the corrugated pull of the flanging and corrugated plate The stretching directions are perpendicular to each other. The bottom plate adopts a single-layer stainless steel corrugated plate as the basic structure. First, a lightweight design is realized. Second, the part of the corrugated plate and the rib plate adopt a ring groove rivet riveting structure with outstanding connection fastness, which abandons the conventional poor fatigue resistance. welded structure.

Description

Rail vehicle equipment compartment floor

technical field

The utility model aims at improving the structure of the bottom plate of rail vehicle equipment cabins, is suitable for the lightweight design of high-speed rail vehicles, and belongs to the field of machinery manufacturing.

Background technique

With the rapid increase in the operation speed of domestic trunk railways and urban light rail, higher design standards have been put forward for vehicle lightweight and safe operation performance.

Existing rail vehicles are generally provided with equipment compartments at the undercarriage beams, in order to set up wire slots, wire pipes and other undercarriage equipment in the confined space of the equipment compartments, so as to avoid being hit by stones and freezing during high-speed operation. other parts damage.

For rail vehicles with a speed of more than 380 km/h that have been put into use in China, the structure and performance of the equipment compartment, in addition to meeting the basic performance of the equipment under the vehicle, also requires that it can be as lightweight as possible and have a considerable The anti-seismic performance and the safety issues such as preventing the loosening of the connecting parts.

Existing rail vehicle equipment cabin floor is still far from reaching or meeting the above-mentioned design and use requirements.

Utility model content

The bottom plate of the rail vehicle equipment compartment described in the utility model is to solve the above-mentioned technical defects and problems by adopting the basic structure of riveting stiffener plates on both sides of the single-layer stainless steel corrugated plate, and improving the safety redundancy by adding on the bottom plate The multi-point fastening method and the fixed structure between the bottom plate and the frame of the equipment compartment meet the requirements of lightweight design of the bottom plate and installation stability.

The design purpose of the utility model is not only to realize the lightweight structure design of the bottom plate, but also to achieve the safe use performance of bearing severe aerodynamic impact or line gravel impact.

Another design purpose is to meet the safe suspension of the bottom plate and the frame of the equipment cabin, prevent stress damage to the connection structure of the equipment cabin due to high-speed operation and severe turbulence, and prevent the bottom plate from loosening and slipping.

In order to achieve the above-mentioned design purpose, the two ends of the bottom plate of the equipment cabin of the rail vehicle are overlapped with the framework of the equipment cabin.

It mainly includes that the bottom plate includes a single-layer corrugated plate, and the ribbed plates are riveted by several ring groove rivets on both sides of the corrugated plate;

The two sides of each rib plate are respectively provided with flanging;

The flanging is perpendicular to the corrugated stretching direction of the corrugated plate.

According to the features of the above-mentioned basic scheme, the bottom plate is matched with the installation of the frame of the equipment cabin, and its two ends are lapped on the protruding surface of the aluminum profile of the frame of the equipment cabin, and a multi-point fixing and fastening method with high safety redundancy is adopted.

The bottom plate adopts a single-layer stainless steel corrugated plate as the basic structure. First, a lightweight design is realized. Second, the part of the corrugated plate and the rib plate adopt a ring groove rivet riveting structure with outstanding connection fastness, which abandons the conventional poor fatigue resistance. welded structure.

The single-layer corrugated board has significant rigidity in its corrugated stretching direction, and the flanges on both sides of the stiffener plate are perpendicular to the corrugated stretching direction, which can further increase the overall rigidity of the bottom plate.

In order to facilitate manufacturing and control processing accuracy, the corrugated plate is a whole piece of stainless steel plate made by integral pressing.

In order to further optimize and improve the overall rigidity of the bottom plate, the flanging on both sides of the stiffener plate is bent in two directions, up and down, respectively, that is, a symmetrical flanging structure with different bending directions is adopted.

Or based on the same design concept, the flanges on both sides of the stiffener are bent upwards or downwards at the same time, that is, opposite flanges in the same bending direction are adopted.

In order to ensure the stability of the bottom plate after it is installed on the framework of the equipment compartment, a more reliable arrangement is that the corrugated stretching direction of the corrugated plate is along the longitudinal direction of the vehicle body and perpendicular to the installation direction of the framework of the equipment compartment.

A preferred connection method between the bottom plate and the frame of the equipment compartment is to fasten and install the bottom plate and the frame of the equipment compartment through several bolts on both sides of the bottom plate.

In order to install or remove the bottom plate on the frame of the equipment cabin more conveniently, several threaded screw seats riveted by countersunk rivets can be provided on the side where the corrugated plate and the stiffener plate are connected;

The above-mentioned bolts are threaded through and connected to the screw seats.

Since the threaded steel screw seat is riveted by the countersunk rivet on the surface of the base plate, the operation can be performed on one side when installing or dismounting the base plate.

When the rail vehicle is operating at high speed, in order to deal with the impact resistance of the bottom plate, the decline of fatigue resistance, and the damage of the connection structure caused by violent bumps, several positioning pins can be set on the side of the corrugated plate and the rib plate.

Adding positioning pins on the bottom plate can, on the one hand, make it easier to locate when installing the bottom plate; Auxiliary function for maximum installation safety.

In summary, the rail vehicle equipment cabin floor of the utility model has the following advantages and beneficial effects:

1. The lightweight structural design of the base plate is realized, which is conducive to improving the high-speed driving operation of rail vehicles.

2. The bottom plate itself is high and rigid, and can bear severe pneumatic or line gravel impact, with high safety.

3. It can meet the safe suspension with the frame of the equipment cabin, prevent the stress damage to the connection structure of the equipment cabin due to high-speed operation and severe turbulence, and avoid safety accidents such as loosening and slipping of the bottom plate.

4. The installation and disassembly of the bottom plate and the frame of the equipment compartment are simpler and easier, which is conducive to reducing the workload of on-site manufacturing or maintenance.

Description of drawings

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

Fig. 1 is the schematic diagram of described rail vehicle equipment cabin floor;

Figure 2 is a schematic diagram of the top view of Figure 1;

Fig. 3 is a schematic diagram of the riveting position of the ring groove rivet;

Fig. 4 is a schematic diagram of the connecting part of the positioning pin;

Fig. 5 is a schematic diagram of the installation of the bottom plate and the equipment compartment skeleton;

As shown in Figures 1 to 5, corrugated plate 1, stiffener plate 2, screw seat 3, ring groove rivet 4, positioning pin 5, bolt 6, equipment compartment frame 7, flange 8.

Detailed ways

As shown in Figures 1 to 5, the two ends of the rail vehicle equipment cabin bottom plate are lapped on the protruding surface of the equipment cabin frame 7 aluminum profile, and a multi-point fixing and fastening method with high safety redundancy is adopted . specifically,

The bottom plate includes a single-layer corrugated plate 1, the corrugated plate 1 is a whole piece of stainless steel plate made by integral pressing, the corrugated stretching direction of the corrugated plate 1 is along the longitudinal direction of the car body, and it is not compatible with the equipment The installation directions of the cabin frames 7 are perpendicular to each other.

On both sides of the corrugated plate 1, several ring groove rivets 4 are used to rivet the reinforcing rib plate 2 respectively.

Both sides of each stiffener 2 are provided with flanges 8 respectively, and the flanges 8 on both sides are respectively bent in two directions, upward and downward.

The flanging 8 and the corrugated stretching direction of the corrugated plate 1 are perpendicular to each other.

On the side where the corrugated plate 1 is connected to the stiffener plate 2, several threaded screw seats 3 riveted by countersunk rivets are provided. Tight installation.

Several positioning pins 5 are arranged on the side where the corrugated plate 1 is connected with the stiffener plate 2 .

Claims (8)

1. A rail vehicle equipment compartment bottom plate, its two ends lapped on the equipment compartment skeleton (7), is characterized in that: The bottom plate includes a single-layer corrugated plate (1), and the ribbed plate (2) is riveted with several ring groove rivets (4) on both sides of the corrugated plate (1); Flanges (8) are respectively provided on both sides of each stiffener plate (2); The flanging (8) and the corrugated stretching directions of the corrugated plate (1) are perpendicular to each other. 2. The rail vehicle equipment cabin floor according to claim 1, characterized in that: the corrugated plate (1) is a whole piece of stainless steel plate made by integral pressing. 3. The rail vehicle equipment cabin floor according to claim 2, characterized in that: the flanges (8) on both sides of the stiffener plate (2) are bent in two directions, up and down, respectively. 4. The rail vehicle equipment cabin floor according to claim 2, characterized in that: the flanges (8) on both sides of the stiffener (2) are bent upwards or downwards at the same time. 5. The rail vehicle equipment compartment bottom plate according to claim 1, 2, 3 or 4, characterized in that: the corrugated stretching direction of the corrugated plate (1) is along the longitudinal direction of the vehicle body, and is in line with the equipment compartment The installation directions of the skeletons (7) are perpendicular to each other. 6. The rail vehicle equipment compartment bottom plate according to claim 5, characterized in that: on both sides of the bottom plate, several bolts (6) are used to fasten the bottom plate and the equipment compartment frame (7). 7. The rail vehicle equipment cabin bottom plate according to claim 6, characterized in that: on the side where the corrugated plate (1) is connected with the stiffener plate (2), there are several threaded rivets riveted by countersunk rivets. The screw seat (3); The bolt (6) is threaded through and connected to the screw seat (3). 8. The rail vehicle equipment cabin floor according to claim 5, characterized in that several positioning pins (5) are arranged on the side where the corrugated plate (1) is connected to the stiffener plate (2).

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