CN201516849U - Cabin apron board structure of vehicle chassis equipment - Google Patents

Abstract

The utility model provides a cabin apron board structure of vehicle chassis equipment. The cabin apron board structure adopts the apron board integrated structure formed by welding aluminium plates (3 mm thickness), achieves the light-weight design by improving the external profile of the apron board and meets the requirements for mechanical strength and aerodynamics during the running of the high-speed rail vehicle. The cabin apron board structure mainly comprises an apron board frame arranged below the steel structure of a vehicle chassis and an apron board connected on the apron board frame, wherein the apron board frame is provided with a section material groove for the plug-in connection with the apron board, and a locking plate for locking the apron board is arranged on the apron board frame. The whole stricture of the apron board is formed by welding aluminium plates (3 mm thickness); the apron board comprises a welded frame and a panel, which are assembled by welding; and an apron board lock is mounted on the panel by spot-welding of a lock backing plate. The welded frame comprises a riveting support and a U-shaped aluminium frame, which are connected with each other; and the riveting support is provided with two layers of aluminium plates which are riveted together in the trapezoid spot-welding and riveting bolt fastening manners.

Description

Vehicle body underframe equipment compartment apron structure

technical field

The utility model relates to a skirt board structure applied to a car body underframe equipment cabin of a rail vehicle to improve the installation, airtightness and maintenance of the equipment under the car, and belongs to the field of mechanical manufacturing.

Background technique

For rail vehicles such as passenger trains and EMUs that have been put into operation in China, in order to save space in the vehicle and facilitate the installation and configuration of pipes and lines for equipment devices, the vehicle equipment is usually installed under the chassis of the vehicle body, that is, a centralized structure is formed. Equipment compartment under the vehicle.

The equipment compartment of the existing car body chassis is made of steel plate, and the design focuses on the sealing performance of the skirt plate of the equipment compartment. For the existing high-speed rail vehicles with a speed of 200 kilometers per hour and above, there are the following disadvantages:

The weight of the existing equipment cabin skirt plate structure is relatively large, which is not conducive to the speed-up design of rail vehicles;

The structure of the skirt plate of the equipment compartment is relatively complicated, and there are defects such as cumbersome installation procedures and poor water sealing effect;

In addition, when the under-vehicle equipment breaks down and needs to be repaired or replaced, the skirt board cannot be opened and leaned against at any angle, thus causing difficulties for maintenance personnel in the equipment maintenance process.

Utility model content

The skirt plate structure of the equipment compartment of the vehicle body underframe of the utility model is designed to solve the above problems by adopting the overall structure of the skirt plate welded by aluminum plates with a thickness of 3mm, and realizing the improvement of the skirt plate structure through the improvement of the outer shape of the skirt plate. Lightweight design to meet the mechanical strength and aerodynamic requirements in high-speed rail vehicle operation.

Another design purpose is to realize that the skirt plate structure can be opened at any angle, so as to facilitate maintenance personnel to inspect the equipment under the vehicle in the equipment compartment.

The purpose of the design is also to improve the connection stability of the skirt plate structure of the equipment compartment, and avoid safety accidents caused by the skirt plate opening and falling off during the operation of the vehicle.

Another design purpose is to further improve the sealing performance after the skirt plate is connected to prevent rainwater or snowwater from seeping into the equipment compartment, so as to effectively provide protection for the safe use of the equipment under the vehicle.

In order to achieve the above design purpose, the skirt plate structure of the equipment compartment of the vehicle body chassis mainly includes:

The apron skeleton arranged under the steel structure of the underframe, and the apron connected to the apron skeleton.

The difference from the prior art is that the apron frame has profile slots for inserting the apron, and a locking plate for locking the apron is arranged on the apron frame.

The entire structure of the apron is welded by aluminum plates with a thickness of 3 mm. The apron includes a welded skeleton and a panel assembled by welding. The apron lock is installed on the panel through spot welding of the lock backing plate.

As in the basic plan above, the overall skirt is made of 3mm aluminum plate, which can effectively reduce the weight of the equipment compartment. The aluminum plate can be manufactured into a cross-sectional shape that fully meets the aerodynamic requirements through the bending process, which is conducive to improving the running speed of the rail vehicle.

In order to improve the mechanical rigidity and strength of the skirt plate structure while taking into account the weight and appearance of the equipment compartment, the following improvement schemes can be adopted,

The welded skeleton includes a riveted bracket and a U-shaped aluminum frame connected to each other, and the riveted bracket has two layers of aluminum plates that are trapezoidal spot-welded and riveted by pressure riveting studs.

The skeleton structure with aluminum plate resistance spot welding and riveting at the same time not only makes the skirt board have a good appearance effect, but also makes the gaps between the parts of the overall skirt board structure uniform and tend to be equal, so it can absorb the assembly of the equipment compartment of the chassis errors in the process.

In order to further improve the connection stability of the assembled apron structure and prevent displacement in all directions, the apron hinge and bracket can be installed on the riveted bracket through fasteners.

Wherein, the skirt plate hinge is inserted into the profile groove of the skirt plate skeleton;

A stopper is arranged on the skirt plate skeleton, and the bracket is connected with the stopper.

When the skirt flap is inserted into the profile groove, it prevents the skirt structure from moving vertically. After the bracket is connected to the stop, the skirt structure is prevented from moving in the longitudinal direction.

A safety rope is arranged between the skirt board and the skirt board skeleton, one end of the safety rope is connected to the lock backing board, and the other end is connected to the lock strike board. The skirt board lock is connected with the lock plate of the skirt board frame to prevent the skirt board lock from moving laterally.

When it is necessary to overhaul the equipment in the equipment compartment, after unlocking the skirt board lock, the skirt board can be opened to different angles under the action of the safety rope until the skirt board is completely removed. During the operation of the rail vehicle, the safety rope can also slow down the accidental shedding of the skirt to cause harm to the vehicle and its surroundings.

A more optimal sealing performance improvement solution is that rubber strips connected to form a sealing ring can be respectively arranged on the U-shaped aluminum frame and the skirt plate hinge.

Sealing rubber strips are installed around the skirt plate to prevent external moisture, dust and other substances from entering the interior of the equipment compartment of the underframe.

To sum up, the utility model car body underframe equipment cabin skirt plate structure has the following advantages:

By adopting 3mm thick aluminum plate, the cross-sectional appearance of the apron structure can be improved, and the lightweight design of the equipment compartment can be realized, which not only meets the mechanical strength of the rail vehicle in operation, but also meets the aerodynamic requirements.

The structure of the skirt board is simple and easy, and it has strong connection stability.

The skirt plate can be opened at any angle, which is convenient for the inspection and maintenance of the equipment under the vehicle in the equipment compartment.

The safety accident caused by the shedding of the skirt plate during the operation of the vehicle can be effectively avoided.

The connection and sealing performance of the apron structure is better, moisture or dust is not easy to enter the equipment compartment, and the safe use of the equipment under the vehicle is guaranteed.

Description of drawings

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

Fig. 1 is the structural representation of described riveted support;

Fig. 2 is the structural representation of described welding skeleton;

Fig. 3 is a schematic diagram of skirt plate assembly welding;

Fig. 4 is a structural schematic diagram of the assembled skirt;

Fig. 5 is a schematic diagram of the skirt plate structure;

Fig. 6 is a schematic diagram of the top view of Fig. 5;

Fig. 7 is a schematic sectional view of A-A in Fig. 6;

Figure 8 is a schematic side view of the underframe of the car body;

Fig. 9 is a schematic diagram of the bottom frame of the car body;

As shown in Figures 1 to 9, aluminum plate 1, aluminum plate 2, U-shaped aluminum frame 3, pressure riveting stud 4, panel 5, lock backing plate 6, lock backing plate 7, skirt plate lock 8, safety lock 9, Apron hinge 10, bracket 11, fastener 12, rubber strip 13, riveted bracket 20, welding frame 21, safety rope 22, skirt frame 30, lock plate 31, stopper 32;

And, the apron 100 , the bottom cover 200 , the underframe partition 300 , the underframe steel structure 400 , and the equipment 500 under the vehicle.

Detailed ways

Embodiment 1, as shown in Fig. 1 to Fig. 9, is applied to the car body underframe equipment compartment skirt plate structure of high-speed rail vehicles, mainly including the skirt plate skeleton 30 arranged under the underframe steel structure 400, and the skirt board frame 30 connected to the skirt The apron 100 on the panel frame 30 . in,

A locking plate 31 for locking the skirt 100 is arranged on the skirt frame 30 .

The entire structure of the apron 100 is welded by an aluminum plate with a thickness of 3 mm. The apron 100 includes a welded skeleton 21 and a panel 5 assembled by welding. The apron lock 8 is installed on the panel 5 by spot welding of the lock backing plate 6 .

The welded frame 21 includes a riveted bracket 20 and a U-shaped aluminum frame 3 connected to each other. The riveted bracket 20 has two layers of aluminum plates 1 and 2 connected by trapezoidal spot welding, and the aluminum plate 1 and aluminum plate 2 are connected by riveting studs 4. riveted.

On the riveted bracket 20 , the skirt panel hinge 10 and the bracket 11 are installed through fasteners 12 .

The skirt panel hinge (10) is inserted into the profile groove of the skirt panel skeleton (30).

A stopper 32 is provided on the skirt frame 30 , and the bracket 11 is connected to the stopper 32 .

A safety rope 22 is arranged between the skirt board 100 and the skirt board frame 30 , one end of the safety rope 22 is connected to the lock pad 6 , and the other end is connected to the lock plate 31 .

On the U-shaped aluminum frame 3 and the skirt plate hinge 10, rubber strips 13 connected to form a sealing ring are arranged respectively.

For the skirt plate structure with the above structure, the assembly process of the equipment compartment of the vehicle body chassis is as follows:

Step 1, implementing welding of the riveted bracket 20 . Place the welded aluminum plate 1 and aluminum plate 2 on a drill press to drill holes, and then place them on a riveting machine to perform riveting of the riveting stud 4;

Step 2, implementing welding assembly of the welding skeleton 21 . The riveted bracket 20 and the U-shaped aluminum material 3 are assembled and welded, and at the same time, the workpiece is clamped by a clamp, so as to form the skirt plate welding skeleton 21 . Adjust the difference between the overall flatness and the diagonal of the welding frame 21 to ensure that it is within the scope of the design, laying the foundation for realizing the overall flatness of the appearance of the apron;

Step 3, place the welding frame 21 on the panel 5, clamp the workpiece with a clamp, and weld the panel 5 and the welding frame 21, that is, adopt resistance spot welding. For the lock pads 6 and 7, perform resistance spot welding with the lock hole as the center;

Step 4, the overall assembly of the apron structure. Assemble skirt lock 8 and safety lock 9 to panel 5. The hinge 10 , the bracket 11 and the riveted bracket 20 are connected by fasteners 12 . The safety rope 22 is snapped onto the lock backing plate 6 . The rubber strips 13 are pressed onto the U-shaped aluminum frame 3 and the hinge 10, and the rubber strips 13 are connected by glue to form a sealing ring.

Step 5, the installation of the apron 100 . For the assembled apron 100, firstly, insert the hinge 10 into the profile groove of the apron frame 30 to prevent the apron 100 from moving vertically;

Secondly, one end of the safety rope 22 is connected to the lock plate 6, and the other end is connected to the lock plate 31 of the skirt board skeleton 30;

Again, the bracket 11 is connected to the stopper 32 of the skirt board frame 30 to prevent the skirt board 100 from moving in the longitudinal direction;

Finally, connect the safety lock 9 and the skirt board lock 8 with the striker plate 31 of the skirt board frame 30 to prevent the skirt board 100 from moving in the lateral direction.

When the apron 100 is locked, the rubber strip 13 is pressed onto the apron frame 30, so that the apron 100, the bottom cover 200, the underframe partition 300, the apron frame 30 and the underframe steel structure 400 together form a multiple An independent, closed space to protect the equipment 500 under the chassis of the car body.

Claims (5)

1. The utility model provides a car body chassis equipment compartment skirtboard structure, is including setting up skirtboard skeleton (30) in chassis steel construction (400) below, and skirtboard (100) are connected on skirtboard skeleton (30), its characterized in that:

the skirtboard framework (30) is provided with a section groove for inserting the skirtboard (100), and a lock catch plate (31) for locking the skirtboard (100) is arranged on the skirtboard framework (30);

the whole structure of skirtboard (100) adopts the aluminum plate welding of 3mm thickness to form, and skirtboard (100) are including welding skeleton (21) and panel (5) of welding equipment, and skirt board lock (8) are installed on panel (5) through lock backing plate (6) spot welding.

2. The vehicle body underframe equipment compartment skirt structure according to claim 1, wherein: the welding framework (21) comprises a riveting support (20) and a U-shaped aluminum frame (3) which are connected with each other, wherein the riveting support (20) is provided with 2 layers of aluminum plates (1) and (2) which are subjected to trapezoidal spot welding and riveted through a riveting stud (4).

3. The vehicle body underframe equipment compartment skirt structure according to claim 2, wherein: an apron plate hinge (10) and a bracket (11) are arranged on the riveting bracket (20) through a fastener (12);

the apron board hinge (10) is inserted into a section bar groove of the apron board framework (30),

a stop (32) is arranged on the apron board framework (30), and the bracket (11) is connected with the stop (32).

4. The vehicle body underframe equipment compartment skirt structure according to claim 3, wherein: a safety rope (22) is arranged between the apron board (100) and the apron board framework (30), one end of the safety rope (22) is connected with the lock backing plate (6), and the other end of the safety rope (22) is connected with the lock catch plate (31).

5. The vehicle body underframe equipment compartment skirt structure according to claim 4, wherein: rubber strips (13) connected into a sealing ring are respectively arranged on the U-shaped aluminum frame (3) and the apron plate hinge (10).

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