Composite mounting base for rail vehicle and rail vehicle

By setting the positions of the clearance groove and connecting plate in the composite mounting base for rail vehicles, the problems of large space occupation and poor versatility in the prior art are solved, achieving the effects of space saving and cost reduction.

CN224491063UActive Publication Date: 2026-07-14CRRC DALIAN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CRRC DALIAN CO LTD
Filing Date
2025-09-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing composite mounting base for rail vehicles occupies a large space and has poor versatility, resulting in excessive assembly space requirements for braking devices and tread cleaning devices, which affects production costs.

Method used

A composite mounting base for rail vehicles was designed. By setting welding points at both ends of the main body of the mounting base and recessing clearance grooves on the main body, the space occupied is reduced by utilizing the positions of the first and second connecting plates, and the tread cleaning device is partially housed in the clearance grooves, thus integrating the braking device and the tread cleaning device.

Benefits of technology

It effectively reduces the space occupied by the overall structure formed by assembling the braking device, tread cleaning device and composite mounting base, improves versatility and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224491063U_ABST
    Figure CN224491063U_ABST
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Abstract

The utility model relates to the technical field of rail vehicles, disclose composite mounting seat for rail vehicle and rail vehicle. The mounting seat main part of composite mounting seat for rail vehicle forms the welding place at both ends along the first direction, the mounting seat main part is recessed with the avoidance slot along the second direction, the avoidance slot is located between both ends of mounting seat main part along the first direction and penetrates mounting seat main part along the third direction, first connecting plate and second connecting plate are located between both ends of mounting seat main part along the first direction and are located the first side of avoidance slot along the third direction, second connecting plate is located below first connecting plate and avoidance slot along the second direction, and first connecting plate is used for connecting tread cleaning device, and second connecting plate is used for connecting the brake cylinder of brake device. Can effectively reduce the occupation space of the overall structure of brake device, tread cleaning device and composite mounting seat for rail vehicle assembly formation, and the versatility of the composite mounting seat for rail vehicle is good, and the design production cost is low.
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Description

Technical Field

[0001] This utility model relates to the field of rail vehicle technology, and in particular to a composite mounting base for rail vehicles and a rail vehicle. Background Technology

[0002] Rail vehicle wheels are typically equipped with braking devices and tread cleaning devices. The braking device, during rail vehicle operation, forcibly decelerates or even stops the vehicle as needed, ensuring it slows down or stops within the expected braking distance. It also helps maintain a stable stop, preventing accidental movement, especially on slopes or other terrain conditions. The tread cleaning device is primarily used to clean mud, sand, and other debris adhering to the rail vehicle wheels and to inhibit wheel wear.

[0003] Currently, composite mounting bases are commonly used to integrate braking devices and tread cleaning devices near the wheels of rail vehicles. One type of composite mounting base in related technologies includes a cylindrical hanging body, with a braking device connecting seat and a tread cleaning device connecting seat respectively provided at both ends of the axial direction of the hanging body. Although this can integrate both the braking device and the tread cleaning device near the wheel and ensure that the braking device and the tread cleaning device can function properly, after the tread cleaning device and the braking device are connected by this composite mounting base, the tread cleaning device is located on top of the composite mounting base, resulting in a large space occupation of the overall structure formed by assembling the braking device, the tread cleaning device, and the composite mounting base; secondly, this composite mounting base has poor versatility. Utility Model Content

[0004] The purpose of this utility model is to provide a composite mounting base for rail vehicles and a rail vehicle, so as to solve the above-mentioned problems existing in the composite mounting base in the related technology.

[0005] Composite mounting base for rail vehicles includes:

[0006] The mounting base body has welded joints at both ends along a first direction. One of the welded joints is used for welding to the bogie frame, and the other welded joint is used for welding to the brake caliper mount of the braking device. The mounting base body is recessed with a relief groove along a second direction. The relief groove is located between the two ends of the mounting base body along the first direction and extends through the mounting base body along a third direction. The relief groove is used to accommodate a tread cleaning device. The first direction, the second direction, and the third direction are perpendicular to each other.

[0007] A first connecting plate and a second connecting plate are fixedly disposed on the main body of the mounting base. The first connecting plate and the second connecting plate are both located between the two ends of the main body of the mounting base along the first direction and are both located on the first side of the clearance groove along the third direction. The second connecting plate is located below the first connecting plate and the clearance groove along the second direction. The first connecting plate is used to connect the tread cleaning device and the second connecting plate is used to connect the brake cylinder of the braking device.

[0008] As an alternative to the aforementioned composite mounting base for rail vehicles, the first connecting plate is located between the two ends of the clearance groove along the first direction.

[0009] As an alternative to the aforementioned composite mounting base for rail vehicles, the number of the second connecting plates is two, the two second connecting plates are distributed at intervals along the first direction, and the first connecting plate is located between the two second connecting plates along the first direction.

[0010] As an alternative to the aforementioned composite mounting base for rail vehicles, the first connecting plate and the second connecting plate are distributed at an acute angle around a fixed axis, which is parallel to the first direction.

[0011] As an alternative to the aforementioned composite mounting base for rail vehicles, the first connecting plate is provided with at least one elongated hole, and the first fastener passes through the elongated hole and is detachably connected to the tread cleaning device.

[0012] As an alternative to the aforementioned composite mounting base for rail vehicles, the main body of the mounting base is cylindrical, and the clearance groove is formed by recessing the outer peripheral surface of the main body of the mounting base, wherein the first direction is the axial direction of the main body of the mounting base.

[0013] As an alternative to the aforementioned composite mounting base for rail vehicles, the mounting base body has a weight-reducing groove recessed at at least one end along its own axial direction.

[0014] As an alternative to the aforementioned composite mounting base for rail vehicles, the mounting base body, the first connecting plate, and the second connecting plate are integrally formed.

[0015] Rail vehicles, including the aforementioned composite mounting base for rail vehicles.

[0016] As an alternative to the aforementioned rail vehicle, the first connecting plate is distributed at an angle to the plane containing the length and width directions of the rail vehicle, and the second connecting plate is parallel to the plane containing the length and width directions of the rail vehicle.

[0017] Beneficial effects:

[0018] This utility model provides a composite mounting base for rail vehicles and a rail vehicle. The composite mounting base includes a mounting base body, and a first connecting plate and a second connecting plate fixedly disposed on the mounting base body. Both ends of the mounting base body along a first direction have weld joints; one weld joint is used for welding to the bogie frame, and the other weld joint is used for welding to the brake caliper mount of the braking device. The mounting base body has a recessed clearance groove along a second direction, located between the two ends of the mounting base body along the first direction and penetrating the mounting base body along a third direction. The clearance groove is used to accommodate a tread cleaning device, and the first, second, and third directions are perpendicular to each other. The first and second connecting plates are both located between the two ends of the mounting base body along the first direction and on the first side of the clearance groove along the third direction. The second connecting plate is located below the first connecting plate and the clearance groove along the second direction. The first connecting plate is used to connect the tread cleaning device, and the second connecting plate is used to connect the brake cylinder of the braking device.

[0019] Before assembling the braking device and tread cleaning device onto the bogie, one weld joint of the mounting base body is first welded to the bogie frame to fix the composite mounting base for rail vehicles in its position on the bogie. Then, the brake caliper hanger of the braking device is welded to another weld joint of the mounting base body. Next, the brake cylinder of the braking device is connected to the second connecting plate. Finally, the tread cleaning device is connected to the first connecting plate to integrate the braking device and tread cleaning device into the composite mounting base for rail vehicles. The overall structure formed by assembling the braking device, tread cleaning device, and composite mounting base for rail vehicles is then integrated into the bogie.

[0020] Specifically, by setting the first connecting plate and the second connecting plate to be located between the two ends of the mounting body along the first direction, the space occupied by the composite mounting base for rail vehicles along the first direction is minimized. Secondly, by setting the first connecting plate and the second connecting plate to be located on the first side of the clearance groove along the third direction, and the second connecting plate to be located below the first connecting plate and the clearance groove along the second direction, the second connecting plate does not interfere with the connection between the tread cleaning device and the first connecting plate. After the tread cleaning device is connected to the first connecting plate, the tread cleaning device is partially housed in the clearance groove, thereby effectively reducing the space occupied by the overall structure along the second direction. Therefore, by using this composite mounting base for rail vehicles, the space occupied by the overall structure formed by assembling the braking device, the tread cleaning device, and the composite mounting base for rail vehicles can be effectively reduced.

[0021] Secondly, since the mounting base body has welded joints at both ends along the first direction, and the first connecting plate and the second connecting plate are both located on the first side of the clearance groove along the third direction, for two adjacent wheels of a rail vehicle along the length direction to be equipped with this composite mounting base for rail vehicles, the composite mounting base for rail vehicles equipped with the two wheels can be directly set between the two wheels, without the need to design a separate composite mounting base for the two adjacent wheels of the rail vehicle along the length direction. It has good versatility and can effectively reduce design and production costs.

[0022] Therefore, by adopting this composite mounting base for rail vehicles, the space occupied by the overall structure formed by assembling the braking device, the tread cleaning device, and the composite mounting base for rail vehicles can be effectively reduced. Moreover, the composite mounting base for rail vehicles has good versatility and can effectively reduce design and production costs. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the composite mounting base for rail vehicles from a first-view perspective in an embodiment of this utility model;

[0024] Figure 2 This is a structural schematic diagram of the composite mounting base for rail vehicles from a second perspective in an embodiment of this utility model;

[0025] Figure 3 This is an assembly drawing of the braking device, tread cleaning device, and composite mounting base for rail vehicles in the embodiments of this utility model;

[0026] Figure 4 This is an assembly drawing of the braking device, tread cleaning device, composite mounting base for rail vehicles, bogie and wheel in the embodiments of this utility model.

[0027] In the picture:

[0028] 1. Mounting base body; 11. Clearance groove; 12. Weight reduction groove;

[0029] 2. First connecting plate; 21. Elongated hole;

[0030] 3. Second connecting plate; 31. First connecting hole;

[0031] 100. Framework;

[0032] 200. Braking device; 210. Brake caliper mount; 220. Brake cylinder; 230. Brake caliper;

[0033] 300. Tread surface cleaning device;

[0034] 400. Wheel. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] This utility model provides a composite mounting base for rail vehicles, such as... Figure 1-4As shown, the composite mounting base for rail vehicles includes a mounting base body 1, and a first connecting plate 2 and a second connecting plate 3 fixedly disposed on the mounting base body 1. The mounting base body 1 has welded joints at both ends along a first direction; one welded joint is used to weld to the bogie frame 100, and the other welded joint is used to weld to the brake caliper hanger 210 of the braking device 200. The mounting base body 1 has a recessed clearance groove 11 along a second direction. The clearance groove 11 is located between the two ends of the mounting base body 1 along the first direction and penetrates the mounting base body 1 along a third direction. The clearance groove 11 is used to accommodate the tread cleaning device 300, and the first, second, and third directions are perpendicular to each other. The first connecting plate 2 and the second connecting plate 3 are both located between the two ends of the mounting base body 1 along the first direction and are both located on the first side of the clearance groove 11 along the third direction. The second connecting plate 3 is located below the first connecting plate 2 and the clearance groove 11 along the second direction. The first connecting plate 2 is used to connect the tread cleaning device 300, and the second connecting plate 3 is used to connect the brake cylinder 220 of the braking device 200.

[0040] Before assembling the braking device 200 and the tread cleaning device 300 onto the bogie, one weld joint of the mounting base body 1 is first welded to the bogie frame 100 to fix the composite mounting base for rail vehicles in its position on the bogie. Then, the brake caliper hanger 210 of the braking device 200 is welded to another weld joint of the mounting base body 1. Then, the brake cylinder 220 of the braking device 200 is connected to the second connecting plate 3. Finally, the tread cleaning device 300 is connected to the first connecting plate 2 to integrate both the braking device 200 and the tread cleaning device 300 into the composite mounting base for rail vehicles, and to integrate the overall structure formed by the braking device 200, the tread cleaning device 300, and the composite mounting base for rail vehicles into the bogie.

[0041] Specifically, by setting the first connecting plate 2 and the second connecting plate 3 to be located between the two ends of the mounting body 1 along the first direction, the space occupied by the composite mounting base for rail vehicles along the first direction is minimized. Secondly, by setting the first connecting plate 2 and the second connecting plate 3 to be located on the first side of the clearance groove 11 along the third direction, and the second connecting plate 3 to be located below the first connecting plate 2 and the clearance groove 11 along the second direction, the second connecting plate 3 does not interfere with the connection between the tread cleaning device 300 and the first connecting plate 2. After the tread cleaning device 300 is connected to the first connecting plate 2, the tread cleaning device 300 is partially housed in the clearance groove 11, thereby effectively reducing the space occupied by the overall structure along the second direction. Thus, by using this composite mounting base for rail vehicles, the space occupied by the overall structure formed by assembling the braking device 200, the tread cleaning device 300, and the composite mounting base for rail vehicles can be effectively reduced.

[0042] Secondly, since both ends of the mounting base body 1 along the first direction have welded joints, and the first connecting plate 2 and the second connecting plate 3 along the third direction are both located on the first side of the clearance groove 11, such as Figure 4 As shown, for two adjacent wheels 400 along the length direction of a rail vehicle to be equipped with the composite mounting seat for the rail vehicle, the composite mounting seat for the rail vehicle can be directly set between the two wheels 400, without the need to design a separate composite mounting seat for the two adjacent wheels 400 along the length direction of the rail vehicle. This has good versatility and can effectively reduce design and production costs.

[0043] Therefore, by adopting this composite mounting base for rail vehicles, the space occupied by the overall structure formed by assembling the braking device 200, the tread cleaning device 300 and the composite mounting base for rail vehicles can be effectively reduced. In addition, the composite mounting base for rail vehicles has good versatility and can effectively reduce design and production costs.

[0044] Specifically, Figure 1 The direction of ab in the equation is the first direction; Figure 2 The cd direction in the equation is the second direction; Figure 2 The ef direction in the code is a third-party direction.

[0045] Specifically, such as Figure 4 As shown, the braking device 200 includes a brake caliper mount 210, a brake cylinder 220, and a brake caliper 230. The brake cylinder 220 is used to drive the brake caliper 230 to brake the wheel 400. The specific structure and working principle of the bogie, braking device 200, and tread cleaning device 300 are all existing technologies, and therefore will not be described in detail here.

[0046] Optionally, in this embodiment, as Figure 1 As shown, along the first direction, the first connecting plate 2 is located between the two ends of the clearance groove 11. This minimizes the volume of the first connecting plate 2 while ensuring its function, thereby effectively reducing the weight of the composite mounting base for the rail vehicle. Secondly, it saves space along the first direction, making it easier to connect the brake cylinder 220 to the second connecting plate 3, thereby effectively improving the efficiency of assembling the brake device 200 onto the second connecting plate 3.

[0047] In other embodiments, at least one end of the first connecting plate 2 may extend along the first direction to the outside of the clearance groove 11.

[0048] Optionally, in this embodiment, as Figure 1As shown, there are two second connecting plates 3, which are spaced apart along the first direction. The first connecting plate 2 is located between the two second connecting plates 3 along the first direction. Having two second connecting plates 3 effectively improves the reliability of connecting the brake cylinder 220 to the composite mounting base for the rail vehicle. Secondly, the first connecting plate 2 is located between the two second connecting plates 3 along the first direction. This means that the first connecting plate 2 and the second connecting plate 3 are spaced apart along the first direction, and the second connecting plate 3 is located below the first connecting plate 2 and the clearance groove 11 along the second direction. This further facilitates connecting the brake cylinder 220 to the second connecting plate 3 and facilitates connecting the tread cleaning device 300 to the first connecting plate 2, thereby further improving the efficiency of assembling the brake device 200, the tread cleaning device 300, and the composite mounting base for the rail vehicle into a single structure.

[0049] In other embodiments, the number of second connecting plates 3 may also be one.

[0050] Specifically, such as Figure 1 As shown, the second connecting plate 3 is provided with a first connecting hole 31. A second fastener passes through the first connecting hole 31 and is detachably connected to the brake cylinder 220. In this embodiment, the second fastener is a bolt, and the brake cylinder 220 is provided with a second connecting hole. Both the first connecting hole 31 and the second connecting hole are cylindrical through holes. The bolt passes through the first connecting hole 31 and the second connecting hole and is threadedly connected to a nut. Further, in this embodiment, two first connecting holes 31 are provided on each second connecting plate 3. The number of first connecting holes 31 on each second connecting plate 3 can also be increased or decreased according to actual working conditions.

[0051] Optionally, in this embodiment, as Figure 1-4 As shown, the first connecting plate 2 and the second connecting plate 3 are arranged at an acute angle around a fixed axis, which is parallel to the first direction. Figure 2-4 As shown, when the rail vehicle is welded to the frame 100 using a composite mounting base, it is convenient to adjust the second connecting plate 3 to be parallel to the plane containing the length and width directions of the rail vehicle. This effectively ensures the relative position of the braking device 200 and the wheel 400, enabling the braking device 200 to brake the wheel 400 stably and reliably. Secondly, it allows the tread cleaning device 300 to be set at an angle to the plane containing the length and width directions of the rail vehicle, thereby effectively improving the cleaning effect of the tread cleaning device 300 and effectively improving the effect of the tread cleaning device 300 in inhibiting the wear of the wheel 400.

[0052] Optionally, such as Figure 1As shown, the first connecting plate 2 has at least one elongated hole 21, through which a first fastener passes and is detachably connected to the tread cleaning device 300. This allows for the detachable connection of the tread cleaning device 300 to the first connecting plate 2, and also allows adjustment of the distance between the tread cleaning device 300 and the wheel surface of the wheel 400 via the elongated hole 21, thereby further improving the effect of the tread cleaning device 300 in inhibiting wheel 400 wear. In this embodiment, two elongated holes 21 are provided on the first connecting plate 2. The number of elongated holes 21 on the first connecting plate 2 can be adjusted according to actual needs.

[0053] In other embodiments, the elongated hole 21 on the first connecting plate 2 can be replaced with a plurality of cylindrical through holes spaced at directional intervals, oriented so that the cleaning end of the tread cleaning device 300 is close to or away from the wheel surface of the wheel 400. This also allows the tread cleaning device 300 to be detachably connected to the first connecting plate 2, and the distance between the tread cleaning device 300 and the wheel surface of the wheel 400 can be adjusted.

[0054] Optionally, in this embodiment, as Figure 1-4 As shown, the mounting body 1 is cylindrical, and a relief groove 11 is recessed on the outer circumferential surface of the mounting body 1. The first direction is the axial direction of the mounting body 1. It can be understood that the second and third directions are two perpendicularly distributed radial directions of the mounting body 1. This arrangement makes the structures of the two welded joints completely identical, thereby further improving the versatility of the composite mounting body for rail vehicles. Secondly, this arrangement eliminates the need to adjust the structure of the existing brake caliper hanger 210, allowing the existing brake caliper hanger 210 to be directly welded to the mounting body 1, thereby further reducing design and production costs. Specifically, the brake caliper hanger 210 is sleeved on the end of the mounting body 1 and welded to the mounting body 1.

[0055] In other embodiments, the mounting base body 1 may also be configured in other shapes such as prism.

[0056] Further optional, such as Figure 1-3 As shown, the mounting base body 1 has a weight-reducing groove 12 recessed at at least one end along its own axial direction. This can further reduce the weight of the composite mounting base for rail vehicles while ensuring structural strength. In this embodiment, the mounting base body 1 is exemplary in that both ends along its own axial direction are provided with weight-reducing grooves 12.

[0057] Optionally, in this embodiment, the mounting base body 1, the first connecting plate 2, and the second connecting plate 3 are integrally formed. This reduces the number of parts and effectively ensures the structural strength of the formed composite mounting base for rail vehicles. Furthermore, compared to connecting the mounting base body 1, the first connecting plate 2, and the second connecting plate 3 into a composite mounting base for rail vehicles by welding, it avoids welding deformation and welding stress. More specifically, in this embodiment, the mounting base body 1, the first connecting plate 2, and the second connecting plate 3 are integrally cast.

[0058] In other embodiments, the mounting base body 1, the first connecting plate 2, and the second connecting plate 3 may be connected by welding or other methods to form a composite mounting base for rail vehicles.

[0059] This utility model also provides a rail vehicle, including the aforementioned composite mounting base for rail vehicles. By adopting the aforementioned composite mounting base for rail vehicles, the space occupied by the overall structure formed by assembling the braking device 200, the tread cleaning device 300, and the composite mounting base for rail vehicles can be effectively reduced, and the braking effect and reliability of the rail vehicle and wheel surface cleaning can be effectively improved, and the design and production cost of the rail vehicle can be effectively reduced.

[0060] Specifically, in this embodiment, as Figure 2-4 As shown, the first connecting plate 2 is angled to the plane containing the length and width directions of the rail vehicle, and the second connecting plate 3 is parallel to the plane containing the length and width directions of the rail vehicle. This effectively ensures the relative position of the braking device 200 and the wheel 400, enabling the braking device 200 to stably and reliably brake the wheel 400, effectively improving the cleaning effect of the tread cleaning device 300, and effectively enhancing the effect of the tread cleaning device 300 in inhibiting the wear of the wheel 400.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A composite mounting base for rail vehicles, characterized in that, include: The mounting body (1) has welded joints at both ends along the first direction. One of the welded joints is used to weld to the bogie frame (100), and the other welded joint is used to weld to the brake caliper mount (210) of the braking device (200). The mounting body (1) has a recessed clearance groove (11) along the second direction. The clearance groove (11) is located between the two ends of the mounting body (1) along the first direction and penetrates the mounting body (1) along the third direction. The clearance groove (11) is used to accommodate the tread cleaning device (300). The first direction, the second direction, and the third direction are perpendicular to each other. A first connecting plate (2) and a second connecting plate (3) are fixedly disposed on the mounting base body (1). The first connecting plate (2) and the second connecting plate (3) are both located between the two ends of the mounting base body (1) along the first direction and are both located on the first side of the clearance groove (11) along the third direction. The second connecting plate (3) is located below the first connecting plate (2) and the clearance groove (11) along the second direction. The first connecting plate (2) is used to connect the tread cleaning device (300), and the second connecting plate (3) is used to connect the brake cylinder (220) of the braking device (200).

2. The composite mounting base for rail vehicles according to claim 1, characterized in that, Along the first direction, the first connecting plate (2) is located between the two ends of the clearance groove (11).

3. The composite mounting base for rail vehicles according to claim 2, characterized in that, The number of the second connecting plates (3) is two, and the two second connecting plates (3) are distributed at intervals along the first direction. The first connecting plate (2) is located between the two second connecting plates (3) along the first direction.

4. The composite mounting bracket for rail vehicles according to any one of claims 1-3, characterized in that, The first connecting plate (2) and the second connecting plate (3) are distributed at an acute angle around a fixed axis, which is parallel to the first direction.

5. The composite mounting bracket for rail vehicles according to any one of claims 1-3, characterized in that, The first connecting plate (2) is provided with at least one elongated hole (21), and the first fastener passes through the elongated hole (21) and is detachably connected to the tread cleaning device (300).

6. The composite mounting bracket for rail vehicles according to any one of claims 1-3, characterized in that, The mounting base body (1) is cylindrical, and the outer peripheral surface of the mounting base body (1) is recessed to form the clearance groove (11), and the first direction is the axial direction of the mounting base body (1).

7. The composite mounting base for rail vehicles according to claim 6, characterized in that, The mounting base body (1) has a weight-reducing groove (12) recessed at at least one end along its own axial direction.

8. The composite mounting bracket for rail vehicles according to any one of claims 1-3, characterized in that, The mounting base body (1), the first connecting plate (2), and the second connecting plate (3) are integrally formed.

9. A rail vehicle, characterized in that, Includes the composite mounting bracket for rail vehicles as described in any one of claims 1-8.

10. The rail vehicle according to claim 9, characterized in that, The first connecting plate (2) is angled to the plane containing the length and width directions of the rail vehicle, and the second connecting plate (3) is parallel to the plane containing the length and width directions of the rail vehicle.