WO2023045063A1

WO2023045063A1 - Rail vehicle

Info

Publication number: WO2023045063A1
Application number: PCT/CN2021/133397
Authority: WO
Inventors: 郭涛; 陈彦宏; 段泽斌; 许红江; 李毅磊; 王家鑫; 张先令; 王俊锋
Original assignee: 中车唐山机车车辆有限公司
Priority date: 2021-09-26
Filing date: 2021-11-26
Publication date: 2023-03-30
Also published as: CN113696927B; CN113696927A

Abstract

A rail vehicle, comprising a vehicle body (8), the bottom of the vehicle body (8) being recessed inwards to form an accommodating space (81) for accommodating a bogie (10); the bogie (10) provided in the accommodating space (81); and side cabin plate assemblies (3) respectively provided on both outer sides of the bogie (10) in a width direction, the side cabin plate assemblies (3) extending in the length and height directions of the bogie (10), and the side cabin plate assemblies (3) being connected to the vehicle body (8).

Description

rail vehicle

technical field

The present application relates to rail vehicle technology, in particular to a rail vehicle.

Background technique

Rail vehicles are an important transportation link connecting cities, and have gradually become the main means of transportation in cities. Rail vehicles are also the main carrier for cargo transportation. A rail vehicle mainly includes: a car body and a bogie arranged under the car body. The bogie is used to carry the car body and realize the running and steering functions.

The bogie is arranged at the bottom of the car body, close to the ground. When the vehicle is running at high speed, sand, gravel, particles, sundries, etc. on the ground are easily carried by the airflow into the interior of the bogie, and hit the pipes, wires and other components of the bogie, causing pits on the surface of the components, which will affect their strength and shorten their strength. Serious cases will also affect driving safety. In addition, each component of the bogie will also generate a certain amount of wind resistance to the airflow to a certain extent, and will generate greater noise when the driving speed is fast.

Contents of the invention

A rail vehicle is provided in the embodiment of the present application, comprising:

Car body; the bottom of the car body is inwardly recessed to form an accommodating space for accommodating the bogie;

bogie, arranged in the accommodation space;

The side deck assemblies are respectively arranged on the two outer sides of the bogie along the width direction; the side deck assemblies extend along the length and height directions of the bogie; the side deck assemblies are connected to the vehicle body.

In the solution provided by the embodiment of the present application, the side deck assembly is used to surround the side of the bogie, which can prevent sand, particles, sundries, etc. Extend the service life of each component, improve reliability and driving safety.

Description of drawings

Fig. 1 is the structural representation of the self-protection bogie that the embodiment of the present application provides;

Fig. 2 is a schematic diagram of the top view angle of the bogie cabin provided by the embodiment of the present application;

Fig. 3 is a schematic diagram of the bottom view angle of the bogie cabin provided by the embodiment of the present application;

Fig. 4 is a schematic diagram of a top view angle of the bottom deck assembly in the bogie cabin body provided by the embodiment of the present application;

Fig. 5 is a schematic diagram of a top view angle of the bilge panel frame in the bilge panel assembly provided by the embodiment of the present application;

Fig. 6 is a structural schematic diagram of opening the middle access door in the bilge panel assembly provided by the embodiment of the present application;

Fig. 7 is a schematic structural diagram of the middle access door provided by the embodiment of the present application;

Fig. 8 is a schematic diagram of the internal structure of the middle access door provided by the embodiment of the present application;

Fig. 9 is a schematic structural diagram of the opening of the end inspection door in the bilge panel assembly provided by the embodiment of the present application;

Fig. 10 is a schematic structural view of the end inspection door provided by the embodiment of the present application;

Fig. 11 is a schematic diagram of the internal structure of the end inspection door provided by the embodiment of the present application;

Figure 12 is an enlarged view of area A in Figure 4;

Figure 13 is an enlarged view of area B in Figure 1;

Fig. 14 is a schematic structural view of the first boom assembly in the bottom deck assembly provided by the embodiment of the present application;

Figure 15 is a cross-sectional view of the top of the first boom assembly connected to the bogie frame;

Figure 16 is a cross-sectional view of the connection between the bottom of the first boom assembly and the bogie frame;

Fig. 17 is a schematic structural view of the second boom assembly in the bottom deck assembly provided by the embodiment of the present application;

Fig. 18 is a schematic plan view of the side panel assembly and the deflector assembly in the bogie cabin provided by the embodiment of the present application;

Fig. 19 is a schematic diagram of the inner structure of the side deck assembly provided by the embodiment of the present application;

Fig. 20 is a schematic diagram of the outer structure of the side deck assembly provided by the embodiment of the present application;

Fig. 21 is a schematic diagram of the internal structure of the side deck assembly provided by the embodiment of the present application;

Fig. 22 is a structural schematic diagram 1 of the first side deck connector in the side deck assembly provided by the embodiment of the present application;

Fig. 23 is the second structural schematic diagram of the first side deck connector in the side deck assembly provided by the embodiment of the present application;

Fig. 24 is a schematic diagram of the internal structure of the first side deck connector in the side deck assembly provided by the embodiment of the present application;

Fig. 25 is a structural schematic diagram 1 of the third side deck connector in the side deck assembly provided by the embodiment of the present application;

Fig. 26 is the second structural schematic diagram of the third side deck connector in the side deck assembly provided by the embodiment of the present application;

Fig. 27 is a schematic structural view of the deflector assembly in the bogie cabin provided by the embodiment of the present application;

Fig. 28 is a schematic diagram of the internal structure of the deflector assembly provided by the embodiment of the present application;

Fig. 29 is a schematic structural view of the first deflector bracket in the deflector assembly provided by the embodiment of the present application;

Fig. 30 is a first schematic structural view of the second deflector bracket in the deflector assembly provided by the embodiment of the present application;

Fig. 31 is a second structural schematic diagram of the second deflector bracket in the deflector assembly provided by the embodiment of the present application;

Fig. 32 is a structural schematic diagram of the air guide formed by the deflector assembly and the bottom deck assembly provided by the embodiment of the present application;

Fig. 33 is a schematic diagram of the top view angle of the bogie provided by the embodiment of the present application;

Fig. 34 is a schematic view of the bottom angle of the bogie provided by the embodiment of the present application;

Figure 35 is a side view of the rail vehicle provided by the embodiment of the present application;

Fig. 36 is a schematic bottom view of the rail vehicle provided by the embodiment of the present application.

Reference signs:

10-bogie; 101-side beam; 102-boom mounting seat; 103-bolster composition; 104-wheel; 105-brake disc; 106-single tie rod; Anti-snake shock absorber; 109-axle box; 20-bogie cabin;

2-Deck plate assembly; 21-Deck plate frame; 211-Intermediate frame; 212-End frame; 213-Locking plate; End access door; 231-brake disc relief hole; 241-hinge shaft; 242-sealing strip; 251-aluminum door frame; 252-honeycomb panel; 253-door panel; Bar; 256-keyhole;

3-side deck assembly; 31-first side deck; 32-second side deck; 33-third side deck; 34-first side deck suspension seat; 341-first bracket vertical plate; 342-the cover plate of the first bracket; 343-the first rotary cam lock; 344-the top plate of the first bracket; 3441-slider; 3442-installation block; Board hanging seat; 361-first interface part; 362-second interface part; 3621-bracket seat plate; 3622-bracket panel; 3623-third turn tongue lock; 37-longitudinal rib;

4-deflector assembly; 41-deflector body; 42-first deflector bracket; 43-second deflector bracket; 44-second bracket vertical plate; 45-second bracket cover plate; 46- The second rotary cam lock; 47-guiding channel;

5-the first boom assembly; 51-the first telescopic adjustment rod; 52-the first boom body; 53-the first positioning sleeve; 54-the first fixing seat; 55-the first rubber node;

6-the second boom assembly; 61-the second telescopic adjustment rod; 62-the second boom body; 63-the second positioning sleeve; 64-the second fixing seat;

71-lock seat; 711-lock notch; 72-lock shaft; 721-bolt;

8-car body; 81-accommodating space; 82-deflector assembly installation part.

Detailed ways

This embodiment provides a rail vehicle, including: a car body, a bogie, and a side deck assembly. Wherein, the bottom of the car body is inwardly recessed to form an accommodating space for accommodating the bogie, and the bogie is arranged in the accommodating space. The side deck assemblies are respectively arranged on two outer sides of the bogie along the width direction; the side deck assemblies extend along the length and height directions of the bogie; the side deck assemblies are connected to the vehicle body.

The side deck assembly is used to surround the side of the bogie, which can prevent sand, gravel, particles, sundries, etc. sex and driving safety.

Based on the above content, this embodiment provides an example to describe the above solution in detail.

In the example provided in this embodiment, the side deck assembly may be provided only on the side of the bogie, or the bottom deck assembly may be further provided under the bogie. The scheme illustrated in the accompanying drawings is provided with both the bottom deck assembly and the side deck assembly. Those skilled in the art can independently apply or combine applications to the bottom deck assembly and the side deck assembly according to the technical solutions provided in this embodiment and the accompanying drawings.

In this embodiment, the length direction of the bogie is the same as the driving direction, that is, the longitudinal direction (X direction in FIG. 1 ). The width direction of the bogie is perpendicular to the driving direction, that is, the transverse direction (Y direction in FIG. 1 ). The height direction of the bogie is also: vertical direction (Z direction in Fig. 1).

Fig. 1 is a schematic structural diagram of a self-protecting bogie provided by an embodiment of the present application. As shown in FIG. 1 , the present embodiment provides a self-protecting bogie, including: a bogie 10 and a bogie cabin 20 , and the bogie cabin 20 surrounds the bottom and sides of the bogie 10 . That is: the bogie cabin has a bottom structure and a side structure, which wraps the bogie 10 inside.

The bogie cabin can prevent sand, gravel, particles, sundries, etc. on the ground from entering the interior of the bogie, hitting the pipelines, wires and other components of the bogie, prolonging the service life of each component, improving reliability and driving safety.

Fig. 2 is a schematic diagram of a top view angle of the bogie cabin provided by the embodiment of the present application, and Fig. 3 is a schematic diagram of a bottom view angle of the bogie cabin provided by the embodiment of the present application. As shown in FIG. 2 and FIG. 3 , one implementation manner is: the bogie cabin includes: a bottom deck assembly 2 and a side deck assembly 3 . Wherein, the bottom deck assembly 2 is arranged directly under the bogie, and the bottom deck assembly 2 extends along the length and width of the bogie. The side deck assemblies 3 are arranged sequentially along the width direction of the bogie, and are respectively arranged on the left and right outer sides of the bogie. The side deck assemblies 3 extend along the length and height of the bogie.

The bottom deck assembly 2 and the side deck assembly 3 respectively enclose the bogie from the bottom and sides to prevent sundries from entering the bogie.

Further, the bogie cabin further includes: deflector assemblies 4, arranged in sequence along the length direction of the bogie, and respectively arranged on the front and rear outer sides of the bogie. The deflector assembly 4 extends along the width direction of the bogie, the deflector assembly 4 forms a preset angle with the horizontal direction, and forms an air guide opening with the bottom deck assembly 2 . During the running of the vehicle, the airflow enters the interior of the bogie from the air guide on the front side and is discharged from the air guide on the rear side. The airflow flowing into the interior of the bogie can dissipate heat from the bogie.

This embodiment also provides a specific implementation of the bilge panel assembly 2:

Fig. 4 is a schematic diagram of the top view angle of the bottom deck assembly in the bogie cabin body provided by the embodiment of the present application, Fig. 5 is a schematic diagram of the top view angle of the bottom deck assembly of the bottom deck assembly provided by the embodiment of the application, and Fig. The schematic diagram of the opening of the central access door in the bilge panel assembly provided by the embodiment of the application, Figure 7 is the schematic structural view of the central access door provided by the embodiment of the application, and Figure 8 is the internal structure schematic diagram of the central access door provided by the embodiment of the application . As shown in FIG. 4 to FIG. 8 , the bottom deck assembly 2 includes: a bottom deck frame 21 and an inspection door. Wherein, the bottom deck frame 21 is a rectangular frame structure, enclosing at least one inspection door installation hole. The access door is located in the access door mounting hole. One side of the access door is rotatably connected to the bottom deck frame 21 , and the opposite side is locked and connected to the bottom deck frame 21 through a locking mechanism. The inspection door can be rotated downward relative to the bottom deck frame 21 to an open state, which is convenient for maintenance of the bogie; in the non-inspection process, the inspection door is rotated upward relative to the floor frame 21 and locked.

Specifically, the bottom deck frame 21 includes: a middle frame 21 and a middle access door 22 . Wherein, the intermediate frame 21 is arranged under the middle part of the bogie, and an inspection door installation hole is arranged in the intermediate frame 21 . Two middle inspection doors 22 are arranged in the installation holes of the inspection doors.

As shown in FIG. 6 , the outer sides of the two middle inspection doors 22 are rotatably connected with the middle frame 21 . For example: the middle access door 22 is connected to the middle frame 21 through hinges or hinges, so that the middle access door 22 can be rotated downward relative to the middle frame 21 to open. Opening the middle access door 22 allows maintenance of parts near the beam of the bogie. A locking mechanism is provided between the middle inspection door 22 and the middle frame 21 for locking the middle inspection door 22 when the middle inspection door 22 rotates upwards into the installation hole of the inspection door.

One implementation is: the two middle access doors 22 are relatively opened, that is, the outer sides of the two middle access doors 22 are rotatably connected to the middle frame 21 , so that the two middle access doors 22 are turned downward from the middle to open. One way of implementation: the middle frame 21 is provided with a hinge shaft 241 , and the outer side of the middle inspection door 22 is connected to the middle frame 21 through the hinge shaft 241 rotatably. The inner side of the middle inspection door 22 is provided with a sealing strip 242 , and the sealing strips 242 on the two middle inspection doors 22 are butted together to seal the gap between the two middle inspection doors 22 . A locking mechanism is provided between the middle frame 211 and the end of the middle access door 22 connected between the outer side and the inner side.

Figure 9 is a schematic structural view of the opening of the end access door in the bilge panel assembly provided by the embodiment of the present application, Figure 10 is a schematic structural view of the end access door provided by the embodiment of the present application, and Figure 11 is a schematic view of the end access door provided by the embodiment of the present application. Schematic diagram of the internal structure of the internal inspection door. As shown in FIGS. 4 to 11 , further, the bottom deck frame 21 further includes: an end frame 212 and an end inspection door 23 . Wherein, the end frames 212 are arranged at both ends of the middle frame 211 in the longitudinal direction, respectively located under the wheel sets of the bogie. The end inspection door 23 is arranged in the inspection door mounting hole surrounded by the end frame 212. The inner side of the end inspection door 23 is connected to the middle frame 21 in rotation, and the outer side of the end inspection door 23 is connected to the end frame 212. A locking mechanism is provided between them.

The end frame 212 is sequentially connected by three connecting rods to form a door-shaped frame, and its two legs are connected to the middle frame 211 . The middle frame 211 is provided with a hinge shaft 241 , which is rotatably connected with the end inspection door 23 .

Further, the end inspection door 23 is provided with a brake disk escape hole 231 , so that the bottom end of the brake axle disk in the bogie passes through the axle disk escape hole 231 . The opening size of the brake disc escape hole 231 can be set according to the size and height of the brake disc, so as not to affect the rotation of the brake disc.

This embodiment also provides a way to realize the inspection door, and both the middle inspection door 22 and the end inspection door 23 can adopt this method. The inspection door includes: an aluminum door frame 251 and an inspection door body arranged in the aluminum door frame 251 . The overhaul door body comprises honeycomb panel 252 and the door panel 253 that is arranged on honeycomb panel 252 both sides, and door panel 253 can adopt aluminum plate to make. The honeycomb panel 252 is provided with a plurality of honeycomb structures whose centerlines are perpendicular to the door panel, and the centerlines of the honeycomb structures are perpendicular to the door panel 253 . The outer surface of the door panel 253 facing away from the honeycomb panel 252 is provided with a damping slurry layer for noise reduction. One implementation method: a damping slurry layer can be set on the surface of the inner door panel facing the bogie and the outer door panel facing away from the bogie. The damping slurry layer on the inner door panel can isolate the internal noise of the bogie, and the damping slurry layer on the outer door panel can Isolate wheel and rail noise. Alternatively, only one side of the door panel is provided with a damping slurry layer to achieve the effect of noise reduction.

A rotating shaft seat 254 is arranged on the outer side of the inspection door, which is used for rotating connection with the rotating shaft on the bottom deck frame. A sealing strip 242 is provided on the inner side of the inspection door, for example, the two middle inspection doors 22 can be sealed by the sealing strip 242 . The other side of the inspection door is provided with a vibration-damping rubber strip 255, which is used for buffering and damping during the opening and closing of the inspection door, and can also perform buffering and vibration reduction during the running of the vehicle, so as to avoid the large vibration of the inspection door. And then produce abnormal noise.

In addition, the inspection door is provided with a through lock hole 256 for installing a locking mechanism, and the inspection door is locked in a closed state by the locking mechanism. For the locking of the inspection door, this embodiment also provides a specific implementation method:

FIG. 12 is an enlarged view of area A in FIG. 4 . As shown in FIGS. 4 , 5 and 12 , the locking mechanism includes: a locking seat 71 and a locking shaft 72 . Wherein, one end of the locking seat 71 is connected to the bottom deck frame 21 , and the other end is provided with a locking notch 711 .

Taking the middle access door 22 as an example, a locking plate 213 is provided on the middle frame 211, and the locking plate 213 is provided with an oblong hole 214 extending along the width direction of the bogie. Use bolts to pass through the mounting holes on the locking seat 71 , and pass through the oblong holes 214 to cooperate with the nuts on the other side of the locking plate 213 to fix the locking seat 71 to the locking plate 213 . The position of the locking seat 71 is conveniently adjusted by using the oblong hole 214 .

The other end of the locking seat 71 is provided with a locking notch 711 , and the locking shaft 72 can be accommodated in the locking notch 711 . Locking shaft 72 passes in the lock hole of inspection door, and its end is provided with key hole. Insert the key from the bottom of the access door, and turn the locking shaft 72 to open or lock the access door. The end of the locking shaft 72 protruding into the locking notch 711 is provided with a locking tongue 721 , and the length of the locking tongue 721 is greater than the width of the locking notch 711 . When the dead bolt 721 rotates to be parallel to the depth direction of the tightening notch 711, the inspection door can be opened; when the dead bolt 721 rotates to be perpendicular to the depth direction, the inspection door cannot be opened to achieve the effect of locking.

In addition, this embodiment also provides a specific implementation method for the connection method between the bottom deck assembly 2 and the bogie:

As shown in Figures 4, 6 and 9, the end of the bottom panel assembly 2 is connected to the frame end of the bogie through a first vertically extending boom assembly 5, and the middle part of the bottom panel assembly 2 is connected to the frame end of the bogie through a vertically extending first boom assembly 5. A second boom assembly 6 is connected to the middle of the frame of the bogie.

Fig. 13 is an enlarged view of area B in Fig. 1 . As shown in Figures 1 and 13, specifically, the first boom assembly 5 is arranged at the position of the end frame 212, its bottom end is connected to the end frame 212, and its top end is connected to the boom mounting seat 102 at the end of the side beam. superior. The boom mounting seat 102 can be fixed to the end of the side beam 101 by bolts or welded to the end of the side beam 101, the boom mounting seat 102 is provided with an opening, the first boom assembly 5 passes through the opening upwards, and fixed.

Figure 14 is a schematic structural view of the first boom assembly in the bottom deck assembly provided by the embodiment of the present application, Figure 15 is a cross-sectional view of the connection between the top of the first boom assembly and the bogie frame, and Figure 16 is a view showing the connection between the bottom of the first boom assembly and the bogie frame. Sectional view of bogie frame connection. As shown in FIGS. 14 to 16 , the first boom assembly 5 includes: a first telescopic adjusting rod 51 , a first boom body 52 , a first positioning sleeve 53 , a first fixing base 54 and a first rubber node 55 .

Wherein, the first telescopic adjusting rod 51 is a rod-shaped structure that can be extended or shortened. The first boom body 52 is a round rod-shaped structure connected to the top end of the first telescopic adjusting rod 51 . Specifically, the first boom body 52 is provided with an internal thread, and the end of the first telescopic adjusting rod 51 is provided with an external thread, which is screwed into the internal thread hole of the first boom body 52 for fixing.

The first positioning sleeve 53 is connected to the end of the first boom body 52 away from the first telescopic adjustment rod 51 (ie: the top end of the first boom body 52 ), and the first positioning sleeve 53 is used to cover from the top of the boom mounting base 102 . It is arranged and fixed on the first boom body 52 , and the top is connected by a nut, so as to realize the fixed connection between the first boom assembly 5 and the boom mounting seat 102 .

The first fixing seat 54 is connected to the other end of the first telescopic adjusting rod 51 (ie, the bottom end of the first telescopic adjusting rod 51 ). The middle part of the first fixing seat 54 is provided with a disc-shaped structure with a slightly larger diameter, and the end of the first fixing seat 54 passes through the first rubber node 55 . A nut is used to connect the first rubber node 55 and the first fixing base 54 together from the bottom end. The first rubber node 55 includes two buffer parts stacked, and there is a preset gap between the two buffer parts that can accommodate the bilge plate assembly. During the assembly process, the end frame is sandwiched between two buffer parts, on the one hand, the end frame 212 is fixed, and on the other hand, the connection with the end frame 212 is buffered.

Fig. 17 is a schematic structural diagram of the second suspender assembly in the bottom deck assembly provided by the embodiment of the present application. As shown in FIG. 17 , the second boom assembly 6 includes: a second telescopic adjusting rod 61 , a second boom body 62 , a second positioning sleeve 63 and a second fixing seat 64 .

Wherein, the second telescopic adjusting rod 61 is a rod-shaped structure that can be extended or shortened. The second boom body 62 is a round rod-shaped structure connected to the top end of the second telescopic adjusting rod 61 . The second positioning sleeve 63 is connected to the end of the second boom body 62 away from the second telescopic adjustment rod 61 (that is: the top end of the second boom body 62), and the second positioning sleeve 63 is used to be sleeved and fixed on the second boom body from above. On the boom body 62, the second boom assembly 6 is fixedly connected to the middle of the frame side beam. For example: it is also possible to set a suspender mounting seat with a similar structure in the middle of the side beam for connecting with the second suspender assembly 6 .

The second fixing seat 64 is connected to the other end (ie: the bottom end) of the second telescopic adjusting rod 61 , and the second fixing seat 64 is connected to the cabin floor assembly 2 , specifically to the middle frame. The bottom end of the second fixing base 64 is a disc-shaped structure or a polygonal structure with a slightly larger diameter, and is fixed to the middle frame by bolts.

For the side deck assembly 3, for example, the following method can be adopted:

Figure 18 is a schematic diagram of the top view angle of the side deck assembly and deflector assembly in the bogie cabin provided by the embodiment of the present application, Figure 19 is a schematic diagram of the inner structure of the side deck assembly provided by the embodiment of the present application, and Figure 20 is the schematic diagram of this application. A schematic diagram of the outer structure of the side deck assembly provided in the embodiment of the application, and FIG. 21 is a schematic diagram of the internal structure of the side deck assembly provided in the embodiment of the application. As shown in Figures 18 to 21, the side deck assembly 3 includes: a side deck body and a side deck connector, the side deck connector is connected to the inner surface of the side deck body facing the bogie, and the side deck assembly The top is used to attach to the body of the vehicle.

The shape of the side deck body is consistent with the shape of the vehicle side skirt. From the side view of the vehicle, the shape change rules of the vehicle side skirt and the side deck body are consistent, so that the vehicle side has better integrity and better visibility. . Along the direction from top to bottom, the side deck body gradually bends toward the bogie, and the bottom end of the side deck body is lower than the side skirt of the vehicle.

Specifically, the side deck body can be made of carbon fiber material, for example including: an inner skin, an outer skin and a skeleton arranged between the inner skin and the outer skin, the skeleton includes longitudinal ribs 37 extending along the bogie length direction and The vertical rib connected between the two longitudinal ribs 37, the longitudinal rib 37 is provided with a connecting part for connecting with the side deck connector, called the longitudinal rib connecting part 371, and the longitudinal rib connecting part 371 is provided with a mounting hole, used For installation of side deck connectors. The frame can improve the strength of the side deck body. During the production process, carbon fiber layups are sequentially laid in the mold, and carbon fiber longitudinal ribs and carbon fiber vertical ribs are arranged between the carbon fiber layups, and the side deck body is formed after curing.

The body of the side deck can be of integral structure or of split structure. In this embodiment, the side deck body is divided into three parts: a first side deck 31 , a second side deck 32 and a third side deck 33 which are sequentially connected along the length direction of the bogie. The first side deck 31 and the third side deck 33 are respectively connected to the side skirt of the vehicle on the corresponding side, so that the body of the side deck and the side skirt of the vehicle are connected into an integral structure. The shapes of the first side panel 31 and the third side panel 33 may match the shape of the corresponding vehicle side skirts.

The side deck connecting parts include: the first type of side deck hanger seat and the second type of side deck hanger seat, and the two sides of the first side deck 31 are connected to the vehicle through the first type of side deck hanger seat respectively. The two sides of the second side deck are respectively connected with the car body through the first type of side deck hangers; the two sides of the third side deck are respectively passed through the first type of side deck hangers and the second The second type of side deck hanging seat is connected with the car body.

Figure 22 is a schematic structural diagram of the first side deck connector in the side deck assembly provided by the embodiment of the present application, and Figure 23 is a structural schematic diagram of the first side deck connector in the side deck assembly provided by the embodiment of the present application 2. FIG. 24 is a schematic diagram of the internal structure of the first side deck connector in the side deck assembly provided by the embodiment of the present application. As shown in FIG. 22 to FIG. 24 , the first type of side deck hanging seat has two structures, which are divided into: a first side deck hanging seat 34 and a second side deck hanging seat 35 . The structures of the two are similar. Taking the first side deck suspension seat 34 as an example, it includes: a first support vertical plate 341 , a first support cover plate 342 , a first rotary tongue lock 343 and a first support top plate 344 .

Wherein, the number of the first support vertical plates 341 is two, which are arranged in parallel and facing each other. Lightening holes may be provided on the first support vertical plate 341 . There are at least two first bracket cover plates 342 connected between the two first bracket vertical plates 341 . There are at least two first rotary cam locks 343 connected between the two first bracket vertical plates 341 , and the first rotary cam locks 343 are arranged alternately with the first bracket cover plates 342 . The end portion of the rotary cam lock 343 is exposed to the outside of the side deck body, the first side deck hanger seat 34 and the side deck body are locked by the rotary cam lock 343, and the key is inserted from the outside to turn the rotary cam lock 343, It is convenient to remove the side deck body.

The first bracket top plate 344 is connected to the top of the two first bracket vertical plates 341, and an interface part for connecting with the vehicle body is provided on it. inside the groove. The interface part may also include a mounting block 3442 for connecting with the vehicle body through bolts.

The structure of the second side deck hanging seat 35 is similar to that of the first side deck hanging seat 34, the difference is that the length of the first support vertical plate in the second side deck hanging seat 35 is shorter , the number of the first bracket cover plate 342 and the first rotary cam lock 343 is relatively small. Specifically, the number of first bracket cover plates in the first side deck hanger seat is greater than the number of first bracket cover plates in the second side deck hanger seat; the first rotation in the first side deck hanger seat The quantity of the tongue locks is greater than the quantity of the first rotary tongue locks in the hanger seat of the second side deck.

For example: there are 4 first bracket covers in the hanging seat of the first side deck, and 4 pieces of the first rotary cam lock; there are 2 first bracket covers in the hanging seat of the second side deck, and the number of the first There are 2 cam locks in one turn.

Figure 25 is a schematic structural diagram of the third side deck connector in the side deck assembly provided in the embodiment of the present application, and Figure 26 is a structural schematic diagram of the third side deck connector in the side deck assembly provided in the embodiment of the present application two. As shown in FIG. 25 and FIG. 26 , the second type of side deck hanging seat includes a structure called the third side deck hanging seat 36 , including: a first interface portion 361 and a second interface portion 362 . Wherein, the first interface portion 361 is provided with an interface component for connecting with the vehicle body, such as a slider, which is connected to the C-shaped groove of the vehicle body. There are two second interface parts 362 , which are respectively vertically connected to two ends of the first interface part 361 .

The second interface portion 362 has two parallel and opposite bracket base plates 3621 , a bracket panel 3622 connected between the two bracket base plates 3621 , and a third rotary tongue lock 3623 . The third turn cam lock 3623 passes through the side deck body.

This embodiment also provides an implementation of the deflector assembly 4:

Fig. 27 is a schematic structural diagram of the deflector assembly in the bogie cabin provided by the embodiment of the present application, and Fig. 28 is a schematic diagram of the internal structure of the deflector assembly provided by the embodiment of the present application. As shown in FIG. 27 and FIG. 28 , the deflector body 41 and the deflector bracket, the deflector body 41 is connected to the vehicle body through the deflector bracket. Along the direction approaching the bogie, the height of the deflector body 41 gradually increases and extends above the end of the bottom deck assembly; the end of the deflector body 41 close to the bogie and the bottom deck assembly 2 form a guide. tuyere.

Both ends of the bogie are provided with a deflector assembly 4, and form an air guide with the bottom deck assembly 2. During the operation of the vehicle, the air flow enters the interior of the bogie from the air guide at the front end of the bogie, and is discharged from the air guide at the rear end to cool down the bogie.

The deflector body can be made of carbon fiber material, including an inner skin, an outer skin, and a frame arranged between the inner and outer skins, and a deflector bracket mounting part 411 is arranged on the frame.

The deflector bracket can be realized in the following ways:

The deflector brackets are divided into two structures with different sizes: the first deflector bracket 41 and the second deflector bracket 42, both of which are roughly the same in structure, only differing in size. Specifically, FIG. 29 is a schematic structural view of the first deflector bracket in the deflector assembly provided in the embodiment of the present application, and FIG. 30 is a schematic structural view of the second deflector support in the deflector assembly provided in the embodiment of the present application. 1. FIG. 31 is a second structural diagram of the second deflector bracket in the deflector assembly provided by the embodiment of the present application. As shown in FIGS. 29 to 31 , the deflector bracket includes: a second bracket vertical plate 44 , a second bracket cover plate 45 and a second rotary tongue lock 46 .

Wherein, the number of the second support vertical plates 44 is two, which are arranged in parallel and facing each other. The second support cover plate 45 is connected between the two second support vertical plates 44 . The second bracket cover plate 45 extends to the heads of the two second bracket vertical plates 44 and is provided with an interface component for connecting with the vehicle body, such as a slider connected with the C-shaped groove of the vehicle body. The second rotary cam lock 46 is connected between the two second bracket vertical plates 44 .

The first deflector support 42 is provided with two second rotary cam locks 46 , and the second deflector support 43 is provided with two second rotary cam locks 46 .

Fig. 32 is a schematic structural diagram of the air guide formed by the deflector assembly and the bottom deck assembly provided by the embodiment of the present application. As shown in FIG. 32 , the end of the bilge panel assembly 2 is a pointed shape protruding outward, and the upper surface of the pointed shape and the lower surface of the deflector body 41 form a flow guide channel 47 . The deflector body 41 is arranged obliquely, and the diameter of the deflector channel 47 increases gradually along the direction approaching the bogie. The included angle between the deflector body 41 and the horizontal direction can be 1°-30°, for example: it can be 5°, 8°, 10°, 11°, 13°, 15°, 25° and other values, but not limited to the above Discrete value.

Specifically, the end frame 212 has an end beam 215, and the outer side of the end beam 215 has an upwardly inclined slope and a downwardly inclined slope, and the two slopes form a pointed shape at the middle position. A guide channel 47 is formed between the upwardly inclined slope and the deflector assembly 4 , and the air flow enters the interior of the bogie along the guide channel. The vertical distance between the end of the deflector assembly 4 close to the bogie and the end crossbeam 215 can be 50mm-150mm, such as: 55mm, 85mm, 100mm, 105mm, 115mm, 130mm, 145mm, etc., but not limited to above discrete values.

At the other end of the bogie, the same structure is used to form a guide channel 47, and the airflow flows out from the guide channel 47 at this end to form an orderly air flow inside the bogie, which is beneficial to heat dissipation of the bogie.

Further, the bottom surface of the deflector body 41 can also be provided with at least two protrusions at intervals, and a flow guide channel 47 is formed between the depression between the protrusions and the end beam 215, and the transverse width of the depression can be 400 mm. -800mm, such as: 450mm, 500mm, 600mm, 750mm and other values, but not limited to the above discrete values.

The bogie cabin provided by this embodiment can reduce aerodynamic resistance by 15%, reduce noise by 3-5dB, and reduce energy consumption by 20%. In the above-mentioned bogies, only the wheels are exposed outside, which can protect the rubber parts of the bogie from ultraviolet radiation and prolong the service life of the rubber parts; the self-protecting bogie can prevent pipelines and wires from being hit by flying sand and rocks, reducing damage ; It can prevent key components such as frame, motor, gear box, and axle from being hit by flying sand and rocks, reduce the formation of defects, and improve the life and bearing capacity of key components. The self-protecting bogie can prolong the maintenance cycle of the bogie, reduce the cost of the whole life cycle, greatly reduce energy and consumption, and has broad application prospects.

The above inspection door adopts aluminum alloy honeycomb panel structure, and the side panel components are made of carbon fiber material, which can even meet the lightweight design, reduce the weight of the bogie, and help improve the traction efficiency of the vehicle. Open the access door to facilitate maintenance and inspection of bogie components.

The above-mentioned side deck assembly 3 can be produced, sold and exported as an independent product.

Fig. 33 is a schematic diagram of the top view angle of the bogie provided by the embodiment of the present application, and Fig. 34 is a schematic view of the bottom view angle of the bogie provided by the embodiment of the present application. As shown in Fig. 33 and Fig. 34, the bogie provided in this embodiment mainly includes components such as a frame, a wheel set, a primary suspension device, a secondary suspension device, and a traction device. Among them, the frame device is composed of an H-shaped main structure and various hangers. The main body of the frame device is a tailor-welded steel plate box structure with high strength and good corrosion resistance, including box-shaped side beams and beams. Stiffness, equal strength, equal stress, streamlined design, novel structure, simple manufacturing process, and high cost performance. A large number of forgings with the same strength as the steel plate are used in various hangers. The forgings have the characteristics of complex structure and excellent performance, and meet the requirements of use in terms of structure and strength.

The side beams 101 extend along the longitudinal direction; there are two side beams 101 arranged side by side in parallel. A beam (not shown in the figure) is connected between the middle parts of the two side beams 101 to form an H-shaped frame main structure.

Wheel sets are respectively arranged below the ends of the side beams, including: axles, wheels 104 symmetrically arranged on the axles, and axle boxes 109 symmetrically arranged on the axles; the axle boxes are located inside the wheels; the bottom deck assembly is located on the coaxial between the two wheels. The triangular pull plate positioning is adopted to reduce the occupied space. One end of the pull plate is fixed to the mounting seat on the axle box through the rubber node, and the other end is fixed to the mounting seat on the frame through the rubber node. During the operation of the train, the pull rod can provide wheel For positioning stiffness, two rubber joints can provide a small displacement and the ability to dampen vibrations.

Specifically, a single tie rod 106 is provided between the axle box 109 and the side beam 101, and the single tie rod 106 extends along the longitudinal direction. At least two liquid containing spaces are provided in the single tie rod 106, and a liquid channel with a smaller aperture is provided between the two liquid containing spaces to connect the two liquid containing spaces. During the running of the vehicle, the liquid flows between the liquid-holding spaces through the liquid channel. When the driving speed of the vehicle is low, the rigidity generated by the liquid flow is small; when the driving speed of the vehicle is high, the rigidity generated by the liquid flow is large. Can improve longitudinal traction stability.

The primary suspension uses two rubber springs at both ends of the axle box, supported on the frame. Rubber springs increase the vertical static deflection of the primary suspension, allowing the bogie to bear greater loads. A series of vertical shock absorbers are used in conjunction with rubber springs in a series of suspension devices, and a series of vertical hydraulic shock absorbers are used to absorb the vertical motion energy between the frame and the wheel set, so that the vertical vibration can be Converge quickly.

The secondary suspension between the frame device and the bolster components adopts a highly flexible air spring bearing method, and its load characteristic test and resonance characteristic test are carried out in accordance with the relevant regulations on the air spring device for railway vehicles. The air spring adopts the same air spring as the EMU bogie, and the air spring can provide secondary vertical damping and lateral damping to improve the dynamic performance of the EMU.

The braking device adopts the combined braking method of the wheel disc and the axle disc. The built-in axle box bogie needs to operate at a speed level above 350 kilometers per hour. Only setting the wheel-mounted brake disc cannot meet the requirements of braking distance and heat capacity. One group of shaft-mounted brake discs 105 is provided for each axle. There is enough space in the middle of the built-in axle box non-power bogie to install the axle-mounted brake disc, and the diameter of the axle-mounted brake disc can be set according to the needs to meet the requirements of braking distance and heat generation. The axle-mounted brake disc is set in the middle of the axle. During the braking process, the two ends and the middle of the axle are stressed, and there will be no uneven load phenomenon, which makes the stress condition of the axle better. The brake hanger is arranged on the side beam or the cross beam, and the brake caliper is arranged on the brake shaft disc, and is used for clamping both sides of the brake caliper for braking.

Another way: a brake axle disc 105 is arranged on an axle, and the distance between the brake axle disc 105 and one wheel 104 is greater than the distance with the other wheel 104, and the brake axle disc 105 in the two wheel pairs can turn to The center of the rack is centrosymmetric.

The central traction device is composed of a traction beam, a central pin, a longitudinal stop, a transverse shock absorber and a vertical stop. The vertical stop seat is a vertical limit for the vehicle body during vibration. The seat is used for vertical vibration reduction of the vehicle body during the vibration process by installing a vertical shock absorber.

The second-series lateral stop is used to limit the position between the central traction device and the frame during the traction process. The metal rubber structure is used to generate lateral movement between the car body and the car body. When the displacement is large, the lateral stop can limit the lateral movement of the car body. Swing, improve the stability and prevent the on-board equipment from exceeding the limit.

Secondary transverse shock absorber, the secondary transverse shock absorber seat on the frame device and the transverse shock absorber seat on the center pin are respectively installed at both ends of the transverse shock absorber, which are used between the frame device, the corbel and the car body Lateral vibration damping relative to running.

The anti-roll torsion bar is composed of the anti-roll torsion bar. The anti-roll torsion bar seat of the bolster device and the frame is used to install the torsion bar. The torsional force prevents the rolling tendency of the car body and keeps the car body stable.

Anti-snake shock absorber, when the running speed reaches more than 250 kilometers per hour, an anti-snake shock absorber should be installed to suppress the snake-snaking motion of the vehicle. One end of the anti-snake shock absorber is connected to the side beam of the frame, and the other end is connected to the corbel and the car body. During the operation of the vehicle, the vehicle will always have a snake-snap motion. The anti-snake shock absorber is used to prevent excessive snake motion. To keep the snaking motion within a certain stable range, an oil pressure anti-snaking shock absorber is installed on each side of the bogie to attenuate the sinusoidal motion of the vehicle.

Specifically, a common anti-snaking shock absorber 108 and an active anti-snaking shock absorber 107 are used, both of which are connected between the frame and the corbel. Wherein, the common anti-snaking shock absorber 108 is an oil pressure shock absorber, which is used to prevent excessive snaking motion. The active anti-snaking shock absorber 107 is electrically connected to the on-board controller, and the controller generates oil pressure control parameters by obtaining parameters such as line information and speed information to control the buffering force of the active anti-snaking shock absorber 107 to adapt to different operating conditions. line requirements. In the way of obtaining line information, the controller can obtain data communication with the trackside terminal.

The bolster composition 103 includes structures such as air spring mounting seat, center pin mounting seat, anti-roll torsion bar mounting seat, height valve mounting seat and anti-snaking shock absorber mounting seat, and is an important part of the bogie. The bolster composition 103 The mechanism used for installation with the car body, the bogie with which it is attached can form an independent part, which is convenient for the replacement and maintenance of the bogie.

The wheel set is composed of wheels, axles, wheel-mounted brake discs and axle-mounted brake discs. The form of the axle box built-in bogie wheel set is obviously different from that of the external type. The bearing is located on the inner side of the wheel, so the bearing seat on the axle is also To be located on the inner side of the wheel seat, the diameter of the bearing seat must be larger than the diameter of the wheel seat, so the inner axle box wheel set should choose a bearing with a larger diameter. The axle of the built-in axle box bogie saves a section for installing bearings. Most of the axles are shorter and lighter than the external axles, which can reduce the unsprung mass, which is beneficial to improve the running stability of the wheels and reduce the wheel-rail force.

This embodiment also provides a rail vehicle, including the bogie provided by any one of the above contents. The rail vehicle can be a single carriage, or it can include multiple carriages. The vehicle may be a fuel-powered vehicle, a gas-powered vehicle, or an electric-powered vehicle. The vehicle can be a normal-speed train, multiple train, subway, light rail, etc. The above-mentioned scheme can especially meet the requirements of the bogie of fast running EMUs with a single vehicle weight of 68t and a speed exceeding 350km/h.

Fig. 35 is a side view of the rail vehicle provided by the embodiment of the present application, and Fig. 36 is a schematic bottom view of the rail vehicle provided by the embodiment of the present application. As shown in FIG. 35 and FIG. 36 , the bottom of the vehicle body 81 is inwardly recessed to form an accommodating space 81 , and the bogie 10 is accommodated in the accommodating space 81 . Specifically, two accommodating spaces 81 are provided at the bottom of a car body for installing two bogies 10 .

The area between the two bogies 10 is provided with vehicle traction equipment, auxiliary equipment, cylinder equipment and the like. The car body specifically includes: an underframe, a side wall, a roof and an end wall. Side skirts are arranged below the two sides of the bottom frame, and the side skirts surround the above-mentioned devices, which is also equivalent to forming the accommodation space 81 through the cooperation of the side skirts and the bottom frame. The side panel assembly 3 on the outside of the bogie 10 has the same shape as the side skirt, so that the side of the compartment has better integrity and improves visibility.

Correspondingly, a longitudinal C-shaped groove is provided on the underframe of the vehicle body for connecting with the suspension seat in the side deck assembly 3 . A deflector assembly mounting portion 82 extending laterally is provided on the underframe of the vehicle body, on which a C-shaped groove is provided for correspondingly connecting with the deflector bracket in the deflector assembly 4 .

The rail vehicle provided by this embodiment has the same technical effect as the above bogie.

Claims

A rail vehicle, characterized in that it comprises:

Car body; the bottom of the car body is inwardly recessed to form an accommodating space for accommodating the bogie;

bogie, arranged in the accommodation space;

The side deck assemblies are respectively arranged on the two outer sides of the bogie along the width direction; the side deck assemblies extend along the length and height directions of the bogie; the side deck assemblies are connected to the vehicle body.
The rail vehicle of claim 1, further comprising:

The bottom deck assembly is arranged under the bogie; the bottom deck assembly extends along the length and width of the bogie; the bottom deck assembly is connected to the bogie.
The rail vehicle of claim 2, further comprising:

The deflector assembly is arranged in sequence along the length direction of the bogie, and is respectively arranged on the two outer sides of the bogie; the deflector assembly extends along the width direction of the bogie; the deflector assembly is preset to the horizontal direction Angle, and an air guide is formed between the bottom deck assembly, so that the air flow enters the interior of the bogie from one side of the air guide, and is discharged from the other side of the air guide.
The rail vehicle of claim 1, wherein the side deck assembly comprises:

The body of the side deck; the shape of the body of the side deck is consistent with the shape of the side skirt of the vehicle;

The side deck connecting piece is arranged on the inner surface of the side deck body facing the bogie, and the top of the side deck assembly is used to connect with the vehicle body.
The rail vehicle according to claim 4, wherein the side deck body comprises: an inner skin, an outer skin, and a skeleton arranged between the inner skin and the outer skin, and the skeleton includes The longitudinal ribs extending in the direction and the vertical ribs connected between the two longitudinal ribs; the longitudinal ribs are provided with connecting parts for connecting with the side deck connectors; the inner skin, outer skin and skeleton are made of carbon fiber materials production.
The rail vehicle according to claim 4, wherein the side deck body comprises: a first side deck, a second side deck and a third side deck sequentially connected along the length direction of the bogie; The side deck and the third side deck are respectively connected to the vehicle side skirts on the corresponding sides;

The side deck connectors include: the first type of side deck hanging seat and the second type of side deck hanging seat;

The two sides of the first side deck are respectively connected to the vehicle body through the first type of side deck hangers;

The two sides of the second side deck are respectively connected to the vehicle body through the first type of side deck hangers;

Both sides of the third side deck are respectively connected to the vehicle body through the first-type side deck hanging seat and the second-type side deck hanging seat.
The rail vehicle according to claim 6, wherein the first type of side deck suspension seat comprises:

Two first bracket vertical plates are arranged in parallel and facing each other;

At least two first bracket cover plates are connected between the two first bracket vertical plates;

At least two first rotary cam locks are connected between the two first bracket vertical plates; the first rotary cam locks are arranged alternately with the first bracket cover plates;

The first support top plate is connected to the tops of the two first support vertical plates; the first support top plate is provided with an interface component for connecting the vehicle body.
The rail vehicle according to claim 6, wherein the second type of side deck suspension seat comprises:

The first interface part is provided with an interface component for connecting with the vehicle body;

The second interface part is vertically connected to the two ends of the first interface part respectively, and the second interface part has two parallel and opposite support seat plates, a support panel connected between the two support seat plates and a third turning tongue Lock.
The rail vehicle of claim 2, wherein the deck assembly comprises:

a bilge panel frame; said bilge panel frame enclosing at least one access door mounting hole;

The inspection door is located in the installation hole of the inspection door, one side of which is rotationally connected with the bottom deck frame, and the opposite side is locked and connected with the bottom deck frame by a locking mechanism.
The rail vehicle of claim 9, wherein the deck frame comprises:

The middle frame is arranged under the middle part of the bogie;

Intermediate access door; the number of the intermediate access doors is two, which are arranged in the access door mounting holes surrounded by the intermediate frame; the outer sides of the two intermediate access doors are rotatably connected with the intermediate frame, and the two intermediate access doors Flips down to open or up to lock.
The rail vehicle according to claim 10, wherein a sealing strip is provided on the inner side of the intermediate access door towards the other intermediate access door; The gaps between the inspection doors are sealed; a locking mechanism is arranged between the end of the middle inspection door connected between the outer side and the inner side and the middle frame.
The rail vehicle of claim 10, wherein the deck frame further comprises:

The end frames are arranged at the two longitudinal ends of the intermediate frame and respectively located under the wheel sets of the bogie;

The end inspection door is set in the inspection door installation hole surrounded by the end frame; the inner side of the end inspection door is connected to the middle frame in rotation, and the outer side of the end inspection door is arranged between the end frame. With locking mechanism.
The rail vehicle according to claim 9, wherein the inspection door includes: an aluminum door frame and an inspection door body; the inspection door body includes a honeycomb panel and door panels arranged on both sides of the honeycomb panel; The panel is provided with a plurality of honeycomb structures whose center lines are perpendicular to the door panel; the outer surface of the door panel away from the honeycomb panel is provided with a damping slurry layer for noise reduction.
The rail vehicle of claim 2, wherein the ends of the floor assembly are connected to the frame end of the bogie by a first vertically extending boom assembly; the middle of the floor assembly is connected by A second vertically extending boom assembly is connected to the middle of the frame of the truck.
The rail vehicle according to claim 3, wherein the deflector assembly comprises: a deflector body and a deflector bracket, the deflector body is connected to the car body through the deflector bracket; In the direction close to the bogie, the height of the deflector body gradually increases and extends above the end of the bottom deck assembly; an air guide opening is formed between the end of the deflector body near the bogie and the bottom deck assembly.
The rail vehicle according to claim 15, characterized in that, the end of the bottom deck assembly is a pointed shape protruding outward, and the pointed upper surface and the lower surface of the deflector body form a flow guide channel ; Along the direction close to the bogie, the caliber of the guide channel increases gradually.