Bogie bilge device, bogie assembly and railway vehicle

Abstract

The embodiment of the utility model provides a bogie bilge device, a bogie assembly and a railway vehicle, and the bilge device comprises a bilge framework and a bilge skin connected to the bilge framework; the bilge framework comprises bilge longitudinal beams, bilge short cross beams and bilge long cross beams; the two bilge longitudinal beams are arranged in parallel at an interval; the bilge long cross beam is connected to the middle parts of the two bilge longitudinal beams, and the end part of the bilge long cross beam exceeds the bilge longitudinal beams; the bilge short cross beam is positioned on the outer side of the bilge long cross beam and is connected between the two bilge longitudinal beams; the bilge skin comprises a skin main body and a skin side part; the skin body extends in the longitudinal direction and covers the bilge longitudinal beams and the bilge short cross beams. The skin side portions are located on the two sides of the longitudinal middle portion of the skin body and cover the ends of the bilge long cross beams. According to the bogie bilge device, the bogie assembly and the railway vehicle, the protection effect on the bogie can be improved, and wind resistance and noise can be reduced.

Description

Technical Field

[0001] The present application relates to rail vehicle running technology, and in particular to a bogie bottom cabin device, a bogie assembly and a rail vehicle. Background Art

[0002] The bogie is one of the important parts of rail vehicles. It is installed under the vehicle body and is used to carry the vehicle body and realize the running and steering functions. During the operation of rail vehicles, sand and gravel on the ground are easily carried into the bogie by airflow, which can easily cause damage to various parts on the bogie, thus affecting its service life and posing a major safety hazard.

[0003] To solve the above problems, baffles can be set at the bottom and / or sides of the bogie to prevent sand and other debris from entering the bogie. However, when the vehicle is running, the gas enters the space surrounded by the baffles, and the flow path is relatively chaotic, which is not conducive to the heat dissipation of the bogie and produces a lot of noise. Summary of the invention

[0004] In order to solve one of the above-mentioned technical defects, a bogie bottom cabin device, a bogie assembly and a rail vehicle are provided in an embodiment of the present application.

[0005] According to a first aspect of an embodiment of the present application, a bogie bottom tank device is provided, comprising: a bottom tank frame and a bottom tank skin connected to the bottom tank frame;

[0006] The bottom tank frame comprises: a bottom tank longitudinal beam, a bottom tank short cross beam and a bottom tank long cross beam; the two bottom tank longitudinal beams are parallel and spaced apart; the bottom tank long cross beam is connected to the middle of the two bottom tank longitudinal beams, and the end of the bottom tank long cross beam exceeds the bottom tank longitudinal beam; the bottom tank short cross beam is located outside the bottom tank long cross beam and connected between the two bottom tank longitudinal beams;

[0007] The bottom cabin skin includes: a skin body and a skin side; the skin body extends longitudinally and covers the bottom cabin longitudinal beams and the bottom cabin short beams; the skin side is located on both sides of the longitudinal middle of the skin body and covers the ends of the bottom cabin long beams.

[0008] According to a second aspect of an embodiment of the present application, there is provided a bogie assembly, comprising: the bogie bottom cabin device as described above.

[0009] According to a third aspect of an embodiment of the present application, there is provided a rail vehicle, comprising: the bogie assembly as described above.

[0010] The technical solution provided in the embodiment of the present application is that the bogie bottom tank device includes a bottom tank frame and a bottom tank skin; wherein, the bottom tank frame includes: a bottom tank longitudinal beam, a bottom tank short cross beam and a bottom tank long cross beam; the two bottom tank longitudinal beams are parallel and spaced apart; the bottom tank long cross beam is connected to the middle of the two bottom tank longitudinal beams, and the end of the bottom tank long cross beam exceeds the bottom tank longitudinal beam; the bottom tank short cross beam is located on the outside of the bottom tank long cross beam and is connected between the two bottom tank longitudinal beams; the bottom tank skin includes: a skin body and a skin side; the skin body extends longitudinally and covers the bottom tank longitudinal beam and the bottom tank short cross beam; the skin side is located on both sides of the longitudinal middle of the skin body and covers the end of the bottom tank long cross beam; the bottom tank frame plays a supporting and connecting role, and the bottom tank skin plays a blocking and protective role, which is used to prevent stones and solid objects on the rail surface from colliding with various components of the bogie, thereby protecting the bogie, extending the service life of the components, and improving driving safety. In addition, skin side portions are provided on both sides of the longitudinal middle part of the skin main body. The skin side portions protrude from the skin main body to make it closer to the skirt panels on both sides of the body of the rail vehicle, thereby reducing the gap between the skirt panels and the bottom cabin skin, reducing the chaotic flow of air in this area, and thus reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0012] Figure 1 A schematic diagram of a structure in which a bottom cabin device provided in an embodiment of the present application is arranged on a bogie;

[0013] Figure 2 A schematic diagram of the structure of the bottom cabin device provided in an embodiment of the present application from a top view;

[0014] Figure 3 A schematic diagram of another top view angle of the bottom cabin device provided in an embodiment of the present application;

[0015] Figure 4 A schematic diagram of the structure of the bottom cabin device provided in an embodiment of the present application from an upward angle;

[0016] Figure 5 Another structural schematic diagram of a bottom cabin device provided in an embodiment of the present application being arranged on a bogie;

[0017] Figure 6 A schematic diagram showing another angle of the bottom cabin device provided in an embodiment of the present application being arranged on a bogie;

[0018] Figure 7 A schematic diagram of the structure of the bottom cabin device provided in the embodiment of the present application connected to the frame via a boom assembly;

[0019] Figure 8 for Figure 2 Magnified view of area A in the middle;

[0020] Fig. 9 A cross-sectional view of the bottom cabin device provided in an embodiment of the present application being connected to the axle box via a wire rope vibration damper.

[0021] Reference numerals:

[0022] 11-side beam; 23-axle box;

[0023] 601-bottom tank device; 602-side tank device; 603-guiding device;

[0024] 61-bottom cabin frame; 611-bottom cabin longitudinal beam; 612-bottom cabin short cross beam; 613-bottom cabin long cross beam; 614-bottom cabin end beam; 615-bottom cabin diagonal beam;

[0025] 62-bottom cabin skin; 621-skin body; 622-skin side; 623-skin side stop; 624-brake pad replacement window; 625-brake disc avoidance hole;

[0026] 63-suspender rod assembly; 631-suspender rod body; 632-first sealing gasket; 633-suspender rod connecting nut; 634-second sealing gasket;

[0027] 64-Wire rope vibration damper;

[0028] 651-inspection door; 652-hinge; 653-locking piece;

[0029] 71-Vertical shock absorber. DETAILED DESCRIPTION

[0030] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0031] This embodiment provides a bottom cabin device that can be installed on the bogie of a rail vehicle, specifically, installed at the bottom of the bogie. It can protect the bogie to prevent stones and solid objects on the rail surface from hitting the bogie, and can also prevent dirt such as mud from adhering to the bogie.

[0032] The rail vehicle may be a vehicle powered by fuel oil, a vehicle powered by gas, or a vehicle powered by electricity. The vehicle may be a conventional train, a multiple-unit train, a subway, a light rail, or the like.

[0033] In this embodiment, the vehicle length direction is called the longitudinal direction, the vehicle width direction is called the lateral direction, and the vehicle height direction is called the vertical direction, vertical direction or vertical direction.

[0034] like Figures 1 to 4 As shown, the bogie bottom tank device provided in this embodiment includes: a bottom tank frame 61 and a bottom tank skin 62 connected to the bottom tank frame 61. The bottom tank frame 61 is connected to the frame of the bogie, and the bottom tank skin 62 is connected to the bottom of the bottom tank frame 61.

[0035] The bottom tank frame includes: a bottom tank longitudinal beam 611, a bottom tank short beam 612 and a bottom tank long beam 613. The two bottom tank longitudinal beams 611 are arranged in parallel and at intervals. The bottom tank long beam 613 is connected to the middle of the two bottom tank longitudinal beams 611, and the end of the bottom tank long beam 613 exceeds the bottom tank longitudinal beam 611. The bottom tank short beam 612 is located outside the bottom tank long beam 613 and connected between the two bottom tank longitudinal beams 611.

[0036] The bottom tank skin includes: a skin body 621 and a skin side 622. The skin body 621 extends longitudinally and covers the bottom tank longitudinal beam 611 and the bottom tank short beam 612. The skin side 622 is located on both sides of the longitudinal middle of the skin body 621 and covers the ends of the bottom tank long beam 613.

[0037] The size of the bottom cabin skin is larger than the coverage area of ​​the bottom cabin frame. The bottom cabin frame plays a supporting and connecting role, and the bottom cabin skin plays a blocking and protective role.

[0038] The technical solution provided in this embodiment is that the bogie bottom tank device includes a bottom tank frame and a bottom tank skin; wherein, the bottom tank frame includes: a bottom tank longitudinal beam, a bottom tank short beam and a bottom tank long beam; the two bottom tank longitudinal beams are parallel and spaced apart; the bottom tank long beam is connected to the middle of the two bottom tank longitudinal beams, and the end of the bottom tank long beam exceeds the bottom tank longitudinal beam; the bottom tank short beam is located on the outside of the bottom tank long beam and is connected between the two bottom tank longitudinal beams; the bottom tank skin includes: a skin body and a skin side; the skin body extends longitudinally and covers the bottom tank longitudinal beam and the bottom tank short beam; the skin side is located on both sides of the longitudinal middle of the skin body and covers the end of the bottom tank long beam; the bottom tank frame plays a supporting and connecting role, and the bottom tank skin plays a blocking and protective role, which is used to prevent stones and solid objects on the rail surface from colliding with various components of the bogie, thereby protecting the bogie, extending the service life of the components, and improving driving safety. In addition, skin side portions are provided on both sides of the longitudinal middle part of the skin main body. The skin side portions protrude from the skin main body to make it closer to the skirt panels on both sides of the body of the rail vehicle, thereby reducing the gap between the skirt panels and the bottom cabin skin, reducing the chaotic flow of air in this area, and thus reducing noise.

[0039] Based on the above technical solution, this embodiment provides a specific implementation of the bottom tank device:

[0040] There are two long cross beams 613 of the bottom cabin, which are arranged side by side and at intervals. The two ends of the long cross beam 613 of the bottom cabin pass through the middle of the corresponding longitudinal beam 611 of the bottom cabin, and pass out to the outside of the longitudinal beam 611 of the bottom cabin. Specifically, the lengths of the two ends of the long cross beam 613 of the bottom cabin passing out of the longitudinal beam 611 of the bottom cabin are equal.

[0041] The long cross beam 613 of the bottom cabin can be a groove beam or a square beam, and the longitudinal beam 611 of the bottom cabin can be a groove beam. The opening directions of the two longitudinal beams 611 of the bottom cabin are arranged facing each other, and the long cross beam 613 of the bottom cabin passes through the groove bottom of the longitudinal beam 611 of the bottom cabin and is riveted and fixed to the groove side wall of the longitudinal beam 611 of the bottom cabin.

[0042] There are two short bottom beams 612, which are respectively located outside the two long bottom beams 613. The short bottom beams 612 can be groove beams or square beams, and both ends of the short bottom beams 612 are respectively inserted into the grooves of the bottom tank longitudinal beams 611, and are riveted and fixed to the groove side walls of the bottom tank longitudinal beams 611 by rivets.

[0043] Furthermore, a bottom tank end beam 614 is also used, connected to the ends of the two bottom tank longitudinal beams 611. The bottom tank end beam 614 can be a groove beam or a square beam, and the two ends of the bottom tank end beam 614 are respectively inserted into the grooves of the bottom tank longitudinal beam 611, and are riveted and fixed to the groove side walls of the bottom tank longitudinal beam 611 by rivets. The bottom tank end beam 614 is used to support the ends of the bottom tank skin 62.

[0044] The above-mentioned bottom hold long cross beam 613 , bottom hold short cross beam 612 and bottom hold end beam 614 are arranged at intervals, and the bottom hold short cross beam 612 is located in the middle of the bottom hold end beam 614 and the bottom hold long cross beam 613 .

[0045] The skin body 621 is covered on the bottom of the bottom cabin longitudinal beam 611, the bottom cabin long cross beam 613, the bottom cabin short cross beam 612 and the bottom cabin end beam 614. The length of the skin body 621 is greater than the length of the bottom cabin longitudinal beam 611, and the width of the skin body 621 is greater than the distance between the two bottom cabin longitudinal beams 611.

[0046] The bottom cabin skin 62 is made of aluminum material, which has a small mass, is conducive to reducing the weight of the vehicle body and realizing the lightweight design of the vehicle. In addition, the aluminum skin is relatively strong and has high reliability.

[0047] like Figure 5 and Figure 6 As shown, based on the above technical solution, this embodiment provides a bogie cabin, including the above-mentioned bottom cabin device 601, side cabin device 602, and guide device 603, which cover the bogie.

[0048] The side compartment device 602 is located on both sides of the bogie and connected to the bottom of the rail vehicle body to protect the bogie from the side. The side compartment device 602 can be consistent with the shape of the body skirt, so there is no need to set the body skirt on the side of the bogie, and the side compartment device 602 can be directly used as the body skirt.

[0049] The guide device 603 is arranged at both ends of the bogie and connected to the bottom of the body of the rail vehicle. A guide channel is formed between the guide device 603 and the end of the bottom cabin device 601, so that air enters the inside of the bogie from the guide channel at one end of the bogie and flows out from the other end of the bogie, forming an orderly flow inside the bogie, which is conducive to accelerating the heat dissipation of the bogie.

[0050] The side of the guide device 603 facing the bottom cabin device 601 is concave inwardly to form an arc-shaped notch. Correspondingly, the middle part of the bottom cabin end beam 614 is arched outward, and the longitudinal end edge of the skin body 621 is arc-shaped, which is consistent with the arc-shaped notch shape of the guide device 603, so that the caliber of the guide channel remains uniform and the guide is softer, which can effectively reduce the turbulence formed at the guide location and reduce the wind noise there.

[0051] Furthermore, the bottom tank oblique beam 615 is connected between the end of the bottom tank long cross beam 613 and the bottom tank longitudinal beam 611, and forms a triangular structure with the bottom tank long cross beam 613 and the bottom tank longitudinal beam 611, which is beneficial to improve the strength of both sides of the middle part of the bottom tank frame 61. The bottom tank oblique beam 615 can be a square beam or a groove beam, and is riveted to the bottom tank longitudinal beam 611 and the bottom tank long cross beam 613 respectively by rivets.

[0052] The edge of the skin side portion 622 is an arc-shaped convex outward. The bottom cabin skin 62 also includes: an arc-shaped skin side stop 623, which is vertically connected to the edge of the skin side portion 622. The edge of the skin side portion 622 is an arc-shaped convex outward, which can reduce the gap between the side skirt plate of the vehicle body or the side cabin device 602, thereby reducing wind resistance.

[0053] The above-mentioned tank longitudinal beam 611, tank end beam 612, tank long beam 613, tank end beam 614 and tank diagonal beam 615 can all be made of extruded aluminum profile structure, and weight-reducing holes can be processed to achieve weight reduction. The tank skin 62 is connected to the tank frame 61 by a riveting process, and the connection method is simple and reliable, which can further achieve lightweight.

[0054] Regarding the connection between the bottom cabin device 601 and the bogie, this embodiment provides an implementation method: the bottom cabin device 601 is connected to the bogie using a suspension rod assembly 63. Specifically, the bottom end of the suspension rod assembly 63 is connected to the end of the bottom cabin long cross beam 613, and the top end is connected to the frame of the bogie.

[0055] Specifically, Figure 7As shown, the boom assembly 63 includes a boom body 631, the bottom end of which is fixed to the long cross beam 613 of the bottom cabin, and a first sealing gasket 632 is provided between the boom body 631 and the long cross beam 613 of the bottom cabin. The top end of the boom body 631 is connected to the frame, specifically, it passes through the side beam 11 in the frame upward and is fixed to the boom connecting nut 633. The boom connecting nut 633 adopts a metal embedded self-locking nut, which can prevent loosening. A second sealing gasket 634 is provided between the top end of the boom body 631 and the frame, and a ring groove is provided in the circumference of the second sealing gasket 634, and the bottom plate of the side beam is embedded in the ring groove. The above-mentioned boom assembly 63 can significantly increase the hanging stiffness of the bottom cabin device 601, and the sealing gasket can reduce the relative movement and vibration between the bottom cabin device and the frame.

[0056] Further, such as Figure 8 As shown, a wire rope vibration damper 64 is used, which is arranged between the bottom cabin device 601 and the bogie to reduce the vibration between the two. Specifically, the two ends of the bottom cabin end beam 614 pass out of the bottom cabin longitudinal beam 611, and the wire rope vibration damper 64 is arranged at the end of the bottom cabin end beam, and its top is used to connect with the axle box of the bogie. Specifically, four wire rope vibration dampers 64 are used, which are respectively arranged at the ends of two bottom cabin end beams 614, connected between the four axle boxes and the bottom cabin end beam 614, to reduce the vibration impact on the axle box and the relative movement between the axle box and the bottom cabin device.

[0057] Specifically, Fig. 9 As shown, the bottom plate of the wire rope vibration damper 64 is connected to the bottom cabin end beam 614 by bolts. The top plate of the wire rope vibration damper 64 is connected to the axle box 23 and the vertical vibration damper 71 in sequence by bolts.

[0058] On the basis of the above technical solution, the area enclosed by the long cross beam 613 and the short cross beam 612 of the bottom cabin forms an inspection area, and the skin body is provided with an inspection hole corresponding to the inspection area. The inspection door 651 is located in the inspection area, and one side of the inspection door 651 is hinged to the bottom cabin longitudinal beam 611 through a hinge 652, so that the inspection door 651 can be rotated relative to the bottom cabin longitudinal beam 611 through the hinge 652 to open downward or close upward. The opposite side of the inspection door 651 is connected to another bottom cabin longitudinal beam 611 through a locking member 653, which is used to lock the inspection door when it is closed. The locking member 653 can be a tongue lock structure.

[0059] Furthermore, an anti-drop safety lock is provided in the middle of the short cross beam 612 of the bottom cabin, which is used to further lock the inspection door when it is closed to prevent the inspection door from accidentally falling off.

[0060] Furthermore, brake disc avoidance holes 625 are provided at four corners of the skin body 621 for avoiding the brake disc on the bogie axle. Specifically, the brake disc avoidance hole 625 is provided on one side of the area between the bottom cabin end cross beam 612 and the bottom cabin end beam 614, corresponding to the position of the brake disc.

[0061] Furthermore, brake pad replacement windows 624 are provided at the four corners of the skin body 621, through which the brake pads on the brake caliper can be disassembled and assembled, thereby realizing maintenance and replacement of the brake pads.

[0062] The above-mentioned bottom cabin device 601 is provided with two inspection doors 651, and the bogie can be inspected and maintained from the bottom by opening the inspection doors.

[0063] This embodiment also provides a bogie assembly, including a bogie and a bogie bottom cabin device provided in any of the above contents.

[0064] This embodiment also provides a rail vehicle, comprising the above-mentioned bogie assembly. The bogie assembly and rail vehicle provided in this embodiment have the same technical effects as the above-mentioned bottom cabin device.

[0065] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0068] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0069] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A bogie bottom cabin device, characterized in that: include: The bottom tank frame and the bottom tank skin connected to the bottom tank frame; The bottom tank frame comprises: a bottom tank longitudinal beam, a bottom tank short cross beam and a bottom tank long cross beam; the two bottom tank longitudinal beams are parallel and spaced apart; the bottom tank long cross beam is connected to the middle of the two bottom tank longitudinal beams, and the end of the bottom tank long cross beam exceeds the bottom tank longitudinal beam; the bottom tank short cross beam is located outside the bottom tank long cross beam and connected between the two bottom tank longitudinal beams; The bottom cabin skin includes: a skin body and a skin side; the skin body extends longitudinally and covers the bottom cabin longitudinal beams and the bottom cabin short beams; the skin side is located on both sides of the longitudinal middle of the skin body and covers the ends of the bottom cabin long beams.

2. The bogie bottom cabin device according to claim 1, characterized in that: The bottom cabin frame also includes: a bottom cabin oblique beam connected between the end of the bottom cabin long cross beam and the bottom cabin longitudinal beam.

3. The bogie bottom cabin device according to claim 1 or 2, characterized in that: The edge of the side portion of the skin is an arc-shaped arc that bulges outwards; The bottom cabin skin also includes: a skin side baffle; the skin side baffle is in an arc shape and is vertically connected to the edge of the skin side.

4. The bogie bottom cabin device according to claim 1, characterized in that: The bottom cabin frame also includes: a bottom cabin end beam connected to the ends of the two bottom cabin longitudinal beams.

5. The bogie bottom cabin device according to claim 4, characterized in that: The middle part of the bottom cabin end beam is arched toward the outside; the longitudinal end edge of the skin body is arc-shaped.

6. The bogie bottom cabin device according to claim 1, characterized in that: Also includes: A boom assembly has one end connected to the end of the long cross beam of the bottom cabin and the other end used to connect to the bogie.

7. The bogie bottom cabin device according to claim 4, characterized in that: Also includes: Wire rope vibration damper; Both ends of the bottom cabin end beam pass outwards from the bottom cabin longitudinal beam. A wire rope shock absorber is arranged at the end of the bottom cabin end beam, and the top of the wire rope shock absorber is used to be connected with the axle box of the bogie.

8. The bogie bottom cabin device according to claim 1, characterized in that: The area between the long cross beam of the bottom cabin and the short cross beam of the bottom cabin is the maintenance area, and the skin body is provided with a maintenance hole corresponding to the maintenance area; The bottom cabin device also includes: an inspection door located in the inspection area; one side of the inspection door is hinged to the bottom cabin longitudinal beam, and the opposite side is connected to another bottom cabin longitudinal beam through a locking member.

9. A bogie assembly, characterized in that: include: The bogie bottom cabin device according to any one of claims 1 to 8.

10. A rail vehicle, characterized in that: include: The bogie assembly as claimed in claim 9.

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