A suspension structure for end equipment of tram bogies and locomotive

Abstract

This invention relates to a suspension structure for end equipment of a tram bogie, comprising a connecting bracket, a wheel flange lubrication mounting bracket, and a chaff remover mounting bracket. The connecting bracket is connected below the end beam of the bogie frame, the chaff remover mounting bracket is connected below the connecting bracket, and the wheel flange lubrication mounting bracket is connected to the side of the connecting bracket. The vertical suspension installation of the equipment is achieved through the connecting bracket. This invention's bogie end equipment suspension structure adopts a vertical suspension installation scheme with the end of the frame, ensuring that the connecting bolts primarily bear tensile stress rather than shear stress, thus improving bolt stress conditions. The end mounting seat of the end beam of the frame adopts a through-hole design, avoiding the possibility of frame damage due to damage to threaded holes, improving component reliability, reducing labor time and costs, and simultaneously increasing bolt length to improve installation reliability.

Description

Technical Field

[0001] This invention relates to the field of tram design technology, and more particularly to a suspension structure for end equipment of tram bogies and a locomotive. Background Technology

[0002] like Figure 1 As shown, the existing tram bogie end equipment mounting bracket is mainly a box-shaped welded structure, equipped with wheel flange lubrication and obstacle removal devices. The overall structure of the bracket (part 2) is as follows: Figure 2 As shown. The overall bracket structure is installed in the threaded holes of the side beam end plate (part 5) using four M20 mounting bolts (part 1). The overall installation structure is as follows. Figure 1 As shown, the end plate mounting interface is as follows Figure 3 As shown. The obstacle removal device (part 4) is mounted on the support body via a cantilevered round steel pipe, and the wheel rim lubrication device (part 3) is mounted on the support body using four M12 bolts.

[0003] The existing structure can realize the functionality of the bogie end connection components, but it has the following main structural disadvantages:

[0004] (1) The overall mounting bracket is longitudinally connected to the end plate of the frame by four bolts. During vehicle operation, the bolts are mainly subjected to shear stress, and the bolt stress conditions are relatively harsh.

[0005] (2) The end plate of the frame uses threaded holes. The equipment is installed at the end of the frame and is subjected to greater stress. Once the threaded holes are damaged, they are difficult to repair.

[0006] (3) The installation interface of the overall bracket and the frame is arranged on the end plate of the frame. In order to match the installation interface of the wheel flange lubrication and the obstacle remover, the overall size of the bracket is large and heavy, resulting in a large vibration load during vehicle operation. Summary of the Invention

[0007] In response to the aforementioned technical problems, a suspension structure for the end equipment of a tram bogie and a locomotive are provided.

[0008] A suspension structure for end equipment of a tram bogie includes a connecting bracket, a wheel flange lubrication mounting bracket, and a chaff remover mounting bracket. The connecting bracket is connected to the lower part of the end beam of the frame, the chaff remover mounting bracket is connected to the lower part of the connecting bracket, and the wheel flange lubrication mounting bracket is connected to the side of the connecting bracket. The vertical suspension installation of the equipment is completed through the connecting bracket.

[0009] Furthermore, the connecting bracket includes an upper plane, a bracket body, and a lower plane connected in sequence, and each of the upper plane, the bracket body, and the lower plane is provided with a through hole.

[0010] Furthermore, the upper plane includes three through holes arranged in a triangle, and the shape of the upper plane is simplified based on the setting position of the three through holes, wherein the long side is trimmed with an inner arc.

[0011] Furthermore, the sides of the connecting bracket without installation interfaces are drilled to ensure structural strength.

[0012] Furthermore, the obstacle clearer connecting plate includes a first connecting section, a first bending section, a second bending section, and a second connecting section. The first connecting section has a through hole, and the upper end face of the first connecting section is connected to the lower plane of the connecting bracket. The first connecting section, the first bending section, the second bending section, and the second connecting section are connected in sequence. There is a preset angle between the first connecting section and the first bending section, and there is a preset angle between the first bending section and the second bending section. The second bending section remains perpendicular to the ground, and the second connecting section has a through hole for connecting the obstacle clearer.

[0013] Furthermore, the connection point between the first connecting segment, the first bending segment, the second bending segment, and the second connecting segment has a certain curvature.

[0014] Furthermore, the wheel rim lubrication mounting bracket includes a docking plate, a mounting plate, a support plate, and a reinforcing plate. The docking plate has a through hole on the side of the bracket body that matches the connecting bracket. The mounting plate is vertically connected to the middle position of the docking plate. The mounting plate and the docking plate are connected. The wheel rim lubrication mechanism is connected to the mounting plate. The reinforcing plate is provided between the bottom of the mounting plate and the docking plate.

[0015] The present invention also discloses a locomotive employing the above-described suspension structure suitable for the end equipment of the bogie of a tram.

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

[0017] 1. The bogie end equipment suspension structure and the frame end adopt a vertical suspension installation scheme, so that the connecting bolts mainly bear tensile stress rather than shear stress, thus improving the stress condition of the bolts;

[0018] 2. The end mounting base of the frame beam adopts a through-hole design, which avoids the possibility of frame damage due to damage to the threaded hole, improves component reliability, reduces labor time and costs, and increases bolt length to improve installation reliability.

[0019] 3. The multi-functional design of the connecting bracket, while meeting the installation requirements of the end equipment interface, utilizes the top, bottom, and sides as connection interfaces, effectively reducing the overall weight of the end equipment suspension. The reduced overall structural weight and efficient use of the space under the side beams decrease vibration loads during operation, improving vehicle operational safety.

[0020] 4. The design structure of the obstacle clearer connection plate ensures structural strength and connection interface requirements. By rationally designing the bending angle, bending radius, and steel plate thickness, the weight of the connection plate is reduced and the reliability of the structure is improved. Attached Figure Description

[0021] 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.

[0022] Figure 1 A schematic diagram of the mounting bracket for the end equipment of a tram bogie in the prior art.

[0023] Figure 2 A schematic diagram of the overall structure of the mounting bracket for existing technology.

[0024] Figure 3 A schematic diagram of the existing technology for installing side beam end plates.

[0025] Figure 4 This is a schematic diagram of the installation of the present invention.

[0026] Figure 5 This is a front view of the overall structure of the present invention.

[0027] Figure 6 A schematic diagram of the installation state of this invention.

[0028] Figure 7 A schematic diagram of the rim lubrication mechanism of this invention.

[0029] Figure 8 A schematic diagram of the installation state of the obstacle clearing device connection plate of the present invention.

[0030] Figure 9 A schematic diagram of the connecting plate structure of the obstacle clearing device of the present invention.

[0031] Figure 10 A schematic diagram of the connecting bracket structure of the present invention.

[0032] In the diagram: 1. Mounting bolt; 2. Overall structure of the bracket; 3. Wheel flange lubrication device; 4. Obstacle remover device; 5. Side beam end plate; 6. Bolt; 7. Nut; 8. Bolt; 9. Mounting plate; 10. Bolt; 11. Obstacle remover; 12. First connecting section; 13. Arc surface; 14. First bending section; 15. Arc surface; 16. Second bending section; 17. Second connecting section; 18. Bracket body. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] like Figures 3-10As shown in the figure, this invention discloses a suspension structure for end equipment of a tram bogie, including a connecting bracket, a wheel flange lubrication mounting bracket, and a derailer mounting bracket. The connecting bracket is connected to the lower part of the end beam of the frame. Specifically, it is vertically suspended and installed on the end mounting seat of the end beam of the frame by three M20 bolts 6 and nuts 7. The entire structure is installed on the lower part of the end beam of the frame. The end mounting seat of the end beam is welded to the upper and lower cover plates of the end beam and has a through-hole structure. The derailer mounting bracket is connected to the lower part of the connecting bracket. Specifically, it is installed on the lower part of the connecting bracket by four M12 bolts 10. The wheel rim lubrication mounting bracket is connected to the side of the connecting bracket. Specifically, it is installed on the side of the connecting bracket by four M12 bolts 8. The vertical hanging installation of the suspended equipment is completed through the connecting bracket. The present invention uses mounting bolts that are mainly subjected to tensile stress, which improves the stress condition of the bolts. The method of installation at the bottom of the frame results in a compact structure, thereby reducing the size and weight of the overall bracket. This effectively reduces the vibration, impact and load force of the overall bracket during operation, improves the structural strength and reliability of the product, and increases the safety margin of the overall structure.

[0041] The connecting bracket includes an upper plane, a bracket body 18, and a lower plane connected in sequence. Each of the upper plane, bracket body, and lower plane has through holes. In this embodiment, the upper plane of the connecting bracket has three through holes with a diameter of 21 mm for connecting the entire suspension equipment to the lower part of the frame end beam. The lower plane has four through holes with a diameter of 13 mm for suspending the obstacle removal device. Additionally, one side also has four through holes with a diameter of 13 mm for connecting the wheel rim lubrication device.

[0042] The upper surface includes three through holes arranged in a triangle. The shape of the upper surface is simplified based on the placement of the three through holes, and the long side is trimmed with an inner arc.

[0043] The sides of the connecting bracket without installation interfaces are perforated while ensuring structural strength. As an optional implementation, additional hanging equipment can be added as needed; in this case, relevant connection structures can be created on the connecting bracket. This invention, by utilizing the upper and lower planes as equipment interfaces, compresses the height of the bracket. Furthermore, the perforation design at locations without installation interfaces significantly reduces the weight of this end device, thereby reducing vibration loads generated by the end device during vehicle operation.

[0044] The obstacle clearer connecting plate is a transitional component that fixes the obstacle clearer to the connecting bracket. Its design aims to reduce its weight as much as possible while ensuring structural strength and connection interface requirements. Since the connecting equipment at the end of the frame experiences significant impact vibration from the track during vehicle operation, the obstacle clearer connecting plate cannot have stress concentration points. Therefore, as an optional implementation, the obstacle clearer connecting plate includes a first connecting section 12, a first bending section 14, a second bending section 16, and a second connecting section 17. The first connecting section has a through hole, and its upper end face is connected to the lower plane of the connecting bracket. The first connecting section, the first bending section, the second bending section, and the second connecting section are connected sequentially. There is a preset angle between the first connecting section and the first bending section, and a preset angle between the first bending section and the second bending section. The second bending section remains perpendicular to the ground. The second connecting section has a through hole for connecting the obstacle clearer 11. In this embodiment, the preset angle between the first connecting section and the first bending section is 120°, and the preset angle between the first bending section and the second bending section is 150°.

[0045] The first connecting segment, the first bending segment, the second bending segment, and the second connecting segment have a certain curvature at their connection points, namely, there are curved surfaces 13 and 15. The specification of both curved surfaces is R20mm, and the thickness of the entire obstacle removal device connecting plate is 10mm.

[0046] The wheel rim lubrication mounting bracket includes a docking plate, a mounting plate 9, a support plate, and a reinforcing plate. The docking plate has a through hole on the side of the bracket body that matches the connecting bracket. The mounting plate is vertically connected to the middle position of the docking plate. The mounting plate and the docking plate are connected. The wheel rim lubrication mechanism is connected to the mounting plate. The reinforcing plate is provided between the bottom of the mounting plate and the docking plate.

[0047] 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. A suspension structure for end equipment of tram bogies, characterized in that, It includes a connecting bracket, a wheel flange lubrication mounting bracket, and an obstacle remover mounting bracket. The connecting bracket is connected to the bottom of the end beam of the frame, the obstacle remover mounting bracket is connected to the bottom of the connecting bracket, and the wheel flange lubrication mounting bracket is connected to the side of the connecting bracket. The vertical hanging installation of the suspended equipment is completed through the connecting bracket. The connecting bracket includes an upper plane, a bracket body, and a lower plane connected in sequence, and each of the upper plane, the bracket body, and the lower plane has through holes. The obstacle clearing device mounting bracket includes a first connecting section, a first bending section, a second bending section, and a second connecting section. The first connecting section has a through hole, and the upper end face of the first connecting section is connected to the lower plane of the connecting bracket. The first connecting section, the first bending section, the second bending section, and the second connecting section are connected in sequence. There is a preset angle between the first connecting section and the first bending section, and there is a preset angle between the first bending section and the second bending section. The second bending section is kept perpendicular to the ground. The second connecting section has a through hole for connecting the obstacle clearing device. There is a preset angle of 120° between the first connecting segment and the first bending segment, and a preset angle of 150° between the first bending segment and the second bending segment; The first connecting section, the first bending section, the second bending section, and the second connecting section have a certain curvature at their connection points. The specifications of both curved surfaces are R20mm, and the thickness of the entire obstacle removal device connecting plate is 10mm.

2. The suspension structure for end equipment of tram bogies according to claim 1, characterized in that, The upper surface includes three through holes arranged in a triangle. The shape of the upper surface is simplified based on the placement of the three through holes, and the long side is trimmed with an inner arc.

3. The suspension structure for end equipment of tram bogies according to claim 1, characterized in that, Drill holes on the side of the connecting bracket where no installation interface is provided, while ensuring structural strength.

4. The suspension structure for end equipment of tram bogies according to claim 1, characterized in that, The connection between the first connecting segment, the first bending segment, the second bending segment, and the second connecting segment has a certain curvature.

5. The suspension structure for end equipment of tram bogies according to claim 1, characterized in that, The wheel rim lubrication mounting bracket includes a docking plate, a mounting plate, a support plate, and a reinforcing plate. The docking plate has a through hole on the side of the bracket body that matches the connecting bracket. The mounting plate is vertically connected to the middle position of the docking plate. The mounting plate and the docking plate are connected. The wheel rim lubrication mechanism is connected to the mounting plate. The reinforcing plate is provided between the bottom of the mounting plate and the docking plate.

6. A locomotive employing the suspension structure for end equipment of a tram bogie as described in any one of claims 1-5.

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