Urban rail vehicle integrated multifunctional bogie end structure

Abstract

This invention relates to an integrated multi-functional bogie end structure for urban rail vehicles. The bogie includes a frame and wheelsets; each wheelset is located inside the frame. The bogie frame end structure of this invention includes a curved plate and a rear plate, the curved plate being connected to the rear plate. The rear plate is provided with mounting holes for installing cable clamps and / or pipe clamps. The curved plate faces the rear plate. At least two lateral mounting holes are provided on the side of the curved plate, wherein the first lateral mounting hole is used to install an upper connecting pipe, and the second lateral mounting hole is used to install a lower connecting pipe. After installation, both the upper and lower connecting pipes are perpendicular to the wheel adjacent to the end of the frame. The upper connecting pipe is used to install a tread cleaning mounting seat, and the lower connecting pipe is used to install a chock remover mounting seat. A rim lubrication mounting seat for installing a rim lubrication device is also installed on the curved plate. This invention achieves integrated installation of the tread cleaning mounting seat, the dry rim lubrication mounting seat, and the chock remover mounting seat.

Description

Technical Field

[0001] This invention relates to the field of urban rail vehicle design technology, and more particularly to an integrated multi-functional bogie end structure for urban rail vehicles. Background Technology

[0002] As one of the most important components in rail vehicles, the bogie has limited internal space and functional requirements. The bogie end not only needs to fulfill the function of tread cleaning, but also needs to undertake functions such as fixing cables, clearing obstacles from the track, and lubricating wheel flanges.

[0003] Existing related technical solutions, such as application number 201921857603.8, disclose a composite support for the end of a bogie, which consists of a support mounting base, an intermediate connecting column, a first connecting plate, a tread cleaning mounting base, a multi-purpose mounting base, a second connecting plate, a rib plate, a wheel flange lubrication mounting base, a reinforcing plate, and a pipeline positioning base. Existing technologies are suitable for the installation of wet wheel flange lubrication nozzles and track wheel flange lubrication. However, for dry wheel flange lubrication devices commonly used in urban rail vehicles, the limited space below the wheel flange lubrication mounting base and the large size of the dry wheel flange lubrication device make the end structure unsuitable for its application. Furthermore, existing solutions cannot adjust the wheel flange lubrication device in the height direction during initial installation; the vertical installation position of the wheel flange lubrication depends entirely on the welding and machining accuracy of the overall mounting base. In addition, existing solutions also have drawbacks such as the inability to fix the end-mounted cable and low machining accuracy of the mounting holes. Summary of the Invention

[0004] In response to the aforementioned technical problems, an integrated multi-functional bogie end structure for urban rail vehicles is provided.

[0005] The technical means employed in this invention are as follows:

[0006] An integrated multi-functional bogie end structure for urban rail vehicles is disclosed. The bogie includes a frame and wheelsets; each wheelset is located inside the frame. The bogie frame end structure includes a curved plate and a rear plate, the curved plate being connected to the rear plate. The rear plate is provided with mounting holes for installing cable clamps and / or pipe clamps. The front of the curved plate is opposite to the rear plate. At least two lateral mounting holes are provided on the side of the curved plate. The first lateral mounting hole is used to install an upper connecting pipe, and the second lateral mounting hole is used to install a lower connecting pipe. After installation, the upper and lower connecting pipes are perpendicular to the wheel adjacent to the end of the frame. The upper connecting pipe is used to install a tread cleaning mounting seat, and the lower connecting pipe is used to install a obstacle remover mounting seat. A wheel flange lubrication mounting seat for installing a wheel flange lubrication device is also installed on the curved plate.

[0007] Furthermore, the rear plate is provided with an extension portion, and there is a preset curvature between the extension portion and the rear plate. After the bent plate is assembled with the rear plate, there is a preset distance between the extension portion and the side of the bent plate. The extension portion is provided with mounting holes for installing wire clips and / or pipe clips.

[0008] Furthermore, the extension includes a first extension and a second extension. The first extension has a mounting hole for fixing the cable clamp of the fault monitoring end of the traveling section. The second extension has an elongated hole for fixing the cable clamp of the speed sensor.

[0009] Furthermore, the bent plate has four bent plate mounting holes in the forward direction. The position of each bent plate mounting hole is set to ensure that after the connector passes through the bent plate mounting hole, the position of the connector does not contact the upper connecting pipe. The rear plate has a rear plate mounting hole at the position matching the bent plate mounting hole.

[0010] Furthermore, the back plate and the bent plate are welded together, and the mounting holes of the back plate and the bent plate, which are machined as a whole after welding, are welded together with the sleeve. Bolts pass through the sleeve and are connected to the end of the frame to fix the main structure of the end support.

[0011] Furthermore, the rear plate is provided with weight-reducing holes, and the two side walls of the curved plate are provided with symmetrically arranged weight-reducing holes.

[0012] Furthermore, a pipe clamp is welded onto the curved plate, which is used to fix the air supply pipe of the tread cleaning device.

[0013] Furthermore, the rim lubrication seat includes a connected rim lubrication rib and a rim lubrication mounting seat. The rim lubrication mounting seat is used to install a dry rim lubrication device. The rim lubrication mounting seat is provided with an elongated hole for adjusting the installation height of the dry rim lubrication device and an elongated hole for adjusting the position of the dry rim lubrication device in the longitudinal direction.

[0014] Furthermore, a stiffening plate is provided between the curved plate and the tread cleaning mounting seat, the stiffening plate being used to improve the stability of the cantilever structure.

[0015] Furthermore, a barrier remover connecting seat is provided between the lower connecting pipe and the barrier remover mounting base. The barrier remover connecting seat includes a vertical plate and a stiffening plate. The vertical plate is used to connect the lower connecting pipe and the barrier remover mounting base, and the stiffening plate is used to improve the stability of the barrier remover mounting base structure.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This end structure integrates the tread cleaning mounting base, dry wheel rim lubrication mounting base, and obstacle removal device mounting base, achieving a high degree of integration.

[0018] 2. This end structure enables the fixing of the bogie end speed sensor cable and the running gear fault monitoring cable.

[0019] 3. Weight reduction factors were considered in the end support structure. Multiple weight reduction holes were set in the rear plate and the bending plate to reduce the overall weight of the end structure, achieving the purpose of lightweighting and higher stability.

[0020] 4. From a technological perspective, the tread cleaning mounting base is made of cast steel, which simplifies mold development; other parts are constructed using bending and machining processes, which simplify processing, reduce processing time, and improve production efficiency.

[0021] 5. The overall assembly process is simple. Some parts are connected by bolts, and the bolt strength meets the requirements of the application conditions. Most parts are welded structures, and some mounting holes are machined as a whole after welding, which can ensure their positional accuracy, facilitate assembly, and avoid the influence of the welding heat deformation zone on the position of the mounting holes.

[0022] 6. The tread cleaning mounting base, wheel flange lubrication mounting base, and obstacle remover mounting base are designed with multiple elongated holes to facilitate manual adjustment of the spatial position of the tread cleaning device, dry wheel flange lubrication device, and obstacle remover. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 It is a bogie end support structure.

[0025] Figure 2 This is an exploded view of the end support structure of the bogie.

[0026] Figure 3 Top view of the wheel rim lubrication mounting bracket.

[0027] In the diagram: A-Frame; B-Wheel; C-Tread cleaning device; D-Dry wheel flange lubrication device; 1-Rear plate; 2-Bend plate; 3-Sleeve; 4-Connecting pipe; 5-Tread cleaning mounting seat; 6-Firming plate; 7-Wheel flange lubrication seat; 8-Block remover connecting seat; 9-Block remover mounting seat; 10-Pipe clamp seat; 11-Blocking plate; 1.1-Rear plate mounting hole; 1.2-Mounting hole; 1.3-Elongated hole; 1.4- 2.1-Weight reduction hole; 2.2-Side mounting hole 1; 2.3-Side mounting hole 2; 2.4-Mounting hole; 2.5-Weight reduction hole; 4.1-Upper connecting pipe; 4.2-Lower connecting pipe; 5.1-Elongated hole; 7.1-Wheel flange lubrication rib; 7.2-Wheel flange lubrication mounting seat; 7.3-Elongated hole; 7.4-Elongated hole; 8.1-Upright plate; 8.2-Rib; 9.1-Elongated hole. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0035] like Figures 1-3As shown in the figure, this invention discloses an integrated multi-functional bogie end structure for urban rail vehicles, which integrates the installation of a tread cleaning device C, a dry wheel flange lubrication device D, and a obstacle remover. It also serves as the fixing of the on-board cable at the end of the frame and the fixing of the on-board cable for the speed sensor. The strength of the bracket meets the requirements of static strength under ultimate load conditions and fatigue strength under common load conditions.

[0036] The bogie includes a frame A and wheelsets, each of which is located inside the frame. The support structure at the end of the bogie consists of a rear plate 1, a bending plate 2, a sleeve 3, a connecting pipe 4, a tread cleaning mounting seat 5, a stiffening plate 6, a wheel flange lubrication seat 7, a obstacle remover connecting seat 8, an obstacle remover mounting seat 9, a pipe clamp seat 10, and a blocking plate 11.

[0037] Both the rear plate 1 and the bent plate 2 are assembled and welded together using a bending process. The four rear plate mounting holes 1.1 and the bent plate mounting holes 2.1, machined integrally after welding, are welded to four sleeves 3. Bolts pass through the sleeves and connect to the end of the frame A, fixing the main structure of the end support. The integrally machined rear plate mounting holes 1.1 and bent plate mounting holes 2.1 after welding ensure the assembly accuracy of the four sleeves 3 and prevent the welding heat deformation zone from affecting the position of the mounting holes. A mounting hole 1.2 and a long slot 1.3 are provided on the side of the rear plate 1. The function of mounting hole 1.2 is to fix the cable clamp for the fault monitoring end of the traveling section, and the function of the long slot 1.3 is to fix the pipe clamp for the speed sensor cable, satisfying the function of transmitting speed signals. To reduce the weight of the end support, a weight-reduction hole 1.4 is provided on the rear plate, and a weight-reduction hole 2.5 is provided on the bent plate 2. The weight-reduction holes 2.5 are symmetrically arranged on the left and right sides of the bent plate 2 to achieve structural lightweighting.

[0038] The curved plate 2 has symmetrically arranged first lateral mounting holes 2.2 and second lateral mounting holes 2.3 on both sides after welding. The first lateral mounting hole 2.2 is used to assemble the upper connecting pipe 4.1. The upper connecting pipe 4.1 passes through the curved plate 2 and is welded together. The tread cleaning mounting seat 5 is welded to the end of the upper connecting pipe 4.1 near the wheel B. The tread cleaning mounting seat is installed at a certain angle to the rail surface during assembly to ensure that the grinding ball in the tread cleaning device C can be aligned with the wheel tread, thus achieving the function of correcting the wheel tread. Four elongated holes 5.1 are provided on the tread cleaning mounting seat 5, which not only facilitates the installation of the tread cleaning device but also provides convenience for adjusting the gap between the grinding ball in the tread cleaning device and the wheel tread. In this embodiment, the tread cleaning mounting seat includes a vertical fixing part and a horizontal mounting part. The vertical fixing part is located in the center of the horizontal mounting part. The horizontal mounting part has elongated holes for connecting the tread cleaning device, and the tread cleaning device is installed below the horizontal mounting part. In addition, the vertical fixing part is triangular in shape and is welded and fixed through the upper connecting pipe.

[0039] Since the tread cleaning mounting base 5 is installed at the cantilever position of the upper connecting pipe 4.1, a stiffening rib 6 is arranged between the bending plate 2 and the tread cleaning mounting base 5 to ensure the fatigue strength of the mounting base under fatigue load conditions. This enhances the stability of the cantilever structure and ensures the normal operation of the tread cleaning device C. In addition, a pipe clamp 10 is welded onto the bending plate 2 to fix the air supply pipe of the tread cleaning device C. In this embodiment, the pipe clamp is positioned in the area where the bending plate mounting hole 2.1 is located. This placement ensures structural strength, high integration, and facilitates a shorter path between the air supply pipe and the tread cleaning device.

[0040] In this embodiment, the stiffening plate includes left and right mounting sections and a connecting section disposed between the two. The left mounting section is attached to the curved plate, and the lower part of the right mounting section is attached to the upper part of the horizontal mounting part of the tread cleaning mounting seat. The connecting section supports the upper connecting pipe.

[0041] Secondly, two symmetrically arranged second lateral mounting holes 2.3, machined as a whole after welding, are used to install the lower connecting pipe 4.2 on both sides of the bent plate 2. The lower connecting pipe 4.2 passes through the bent plate 2 and is welded together. The obstacle remover connecting seat 8 is welded to the side of the lower connecting pipe 4.2 near the wheel. The overall structure is simple and easy to process. The obstacle remover mounting seat 9 is welded together with the obstacle remover connecting seat 8 and is arranged vertically. Two elongated holes 9.1 are provided on the obstacle remover mounting seat 9 to facilitate the adjustment of the height of the obstacle remover from the rail surface. In this embodiment, the obstacle remover connecting seat includes a vertical plate 8.1 and a stiffening plate 8.2. The two vertical plates are respectively installed on the back of the obstacle remover mounting seat and welded to the lower connecting pipe. As an optional implementation, a stiffening plate 8.2 can also be provided as a reinforcing rib structure installed in the space formed by the two vertical plates, the lower connecting pipe, and the back of the obstacle remover mounting seat to ensure the stability of the overall structure.

[0042] The four mounting holes 2.4 of the welded bent plate 2 are integrally machined and fixed together with the wheel flange lubrication seat 7 by bolts. The wheel flange lubrication seat 7 consists of a wheel flange lubrication rib 7.1 and a wheel flange lubrication mounting base 7.2. The wheel flange lubrication mounting base 7.2 is used to install the dry wheel flange lubrication device D. Several elongated holes 7.3 are provided on the wheel flange lubrication mounting base 7.2 to facilitate adjustment of the installation height of the dry wheel flange lubrication device D. Two additional elongated holes 7.4 are provided for longitudinal adjustment of the dry wheel flange lubrication device, ensuring the lubrication block is tightly attached to the wheel flange. In this embodiment, the rim lubrication mounting base includes a vertical fixing part and a horizontal mounting part. The vertical fixing part is in contact with the front of the curved plate, and the horizontal mounting part is located below the vertical fixing part. The rim lubrication rib is connected above the horizontal mounting part and to the front of the vertical fixing part. The elongated hole 7.3 is a hole opened on the vertical fixing part, and the elongated hole 7.4 is a hole opened on the horizontal mounting part. The rim lubrication rib is arranged to bypass the elongated holes 7.3 and 7.4. The rim lubrication mounting base 7.2 is generally in the shape of a straight hook, which can reduce its own weight to the greatest extent while ensuring structural strength.

[0043] The plug plate 11 is welded to both ends of the inner hole of the upper connecting pipe 4.1 and the lower connecting pipe 4.2 to seal the connecting pipe 4.

[0044] As can be seen from the diagram, in this embodiment, the tread cleaning mounting seat, wheel flange lubrication mounting seat, and obstacle remover mounting seat on the side of the curved plate are arranged sequentially from top to bottom, resulting in a compact overall structure and high integration.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated multi-functional bogie end structure for urban rail vehicles, the bogie comprising a frame and wheelsets; each wheelset is located inside the frame, characterized in that, The end structure of the bogie frame includes a bend plate and a rear plate. The bend plate is connected to the rear plate. The rear plate is provided with mounting holes for installing cable clamps and / or pipe clamps. The front of the bend plate is opposite to the rear plate. The side of the bend plate is provided with at least two lateral mounting holes. The first lateral mounting hole is used to install an upper connecting pipe, and the second lateral mounting hole is used to install a lower connecting pipe. After installation, the upper and lower connecting pipes are perpendicular to the wheel adjacent to the end of the frame. The upper connecting pipe is used to install a tread cleaning mounting seat, and the lower connecting pipe is used to install a obstacle remover mounting seat. The bend plate is also provided with a wheel flange lubrication seat for installing a wheel flange lubrication device. The rear plate is provided with an extension, and there is a preset curvature between the extension and the rear plate. After the bent plate is assembled with the rear plate, there is a preset distance between the extension and the side of the bent plate. The extension is provided with mounting holes for installing wire clips and / or pipe clips. The extension includes a first extension and a second extension. The first extension has a mounting hole for fixing the cable clamp of the fault monitoring end of the traveling section. The second extension has an elongated hole for fixing the cable clamp of the speed sensor. The rim lubrication seat includes a connected rim lubrication rib and a rim lubrication mounting seat. The rim lubrication mounting seat is used to install a dry rim lubrication device. The rim lubrication mounting seat is provided with an elongated hole for adjusting the installation height of the dry rim lubrication device and an elongated hole for adjusting the position of the dry rim lubrication device in the longitudinal direction.

2. The integrated multi-functional bogie end structure for urban rail vehicles according to claim 1, characterized in that, The bending plate has four bending plate mounting holes in the forward direction. The position of each bending plate mounting hole is set to ensure that after the connector passes through the bending plate mounting hole, the position of the connector does not contact the upper connecting pipe. The rear plate has a rear plate mounting hole at the position matching the bending plate mounting hole.

3. The integrated multi-functional bogie end structure for urban rail vehicles according to claim 1, characterized in that, The back plate and the bent plate are welded together. The mounting holes of the back plate and the bent plate, which are machined as a whole after welding, are welded together with the sleeve. Bolts pass through the sleeve and are connected to the end of the frame to fix the main structure of the end support.

4. The integrated multi-functional bogie end structure for urban rail vehicles according to claim 1, characterized in that, The rear plate has weight-reducing holes, and the two side walls of the curved plate have symmetrically arranged weight-reducing holes.

5. The integrated multi-functional bogie end structure for urban rail vehicles according to claim 1, characterized in that, A pipe clamp is welded onto the curved plate, which is used to fix the air supply pipe of the tread cleaning device.

6. The integrated multi-functional bogie end structure for urban rail vehicles according to claim 1, characterized in that, A stiffening plate is provided between the curved plate and the tread cleaning mounting seat, and the stiffening plate is used to improve the stability of the cantilever structure.

7. The integrated multi-functional bogie end structure for urban rail vehicles according to claim 1, characterized in that, A barrier remover connecting seat is provided between the lower connecting pipe and the barrier remover mounting seat. The barrier remover connecting seat includes a vertical plate and a stiffening plate. The vertical plate is used to connect the lower connecting pipe and the barrier remover mounting seat, and the stiffening plate is used to improve the stability of the barrier remover mounting seat structure.

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