Railway vehicle anti-snaking damper mounting seat

Abstract

The utility model provides a kind of rail vehicle anti-snaking damper mounting seat, comprising: installation base plate, two support vertical plate, reinforcing rib assembly and two damper connecting sleeves, installation base plate is bolted to bogie frame, two support vertical plate is vertically fixed on the installation base plate upper surface with parallel interval arrangement, and damper connecting sleeve is one-to-one corresponding fixed in the upper portion of support vertical plate, reinforcing rib assembly is arranged in the root area of support vertical plate and installation base plate connection.The utility model is simple in structure, and simple and convenient to process and install and maintain, by setting the reinforcing rib assembly of multidirectional, make support vertical plate and reinforcing rib form stable box type or frame type structure, enhance the overall stiffness, simultaneously optimize stress distribution, realize lightweight design, and it is strong in practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of rail vehicle bogie components, and in particular to a rail vehicle anti-hunting vibration damper mounting base. Background Technology

[0002] Anti-hunting dampers are key components on the bogies of rail vehicles. Their main function is to suppress the hunting motion generated by the vehicle at high speeds, ensuring smooth and safe operation. The mounting bracket is an important structural component connecting the damper to the bogie frame (or car body).

[0003] Currently, most common anti-hunting vibration damper mounting bases adopt simple single-plate or double-plate welded structures. These traditional mounting bases have the following drawbacks: Stress concentration: During operation, the vibration damper generates huge alternating loads, and the force is concentrated and transmitted to the weld seams and base material of the mounting base. This easily leads to fatigue cracks at stress concentration points (such as weld ends and opening edges), affecting driving safety; Insufficient or uneven stiffness: Simple plate structures make it difficult to optimize overall stiffness, which may cause micro-deformation of the mounting base under load, affecting the damping efficiency of the vibration damper, and even causing abnormal wear of the damper lugs or pins; Conflict between lightweight and strength: Increasing the plate thickness to improve strength leads to increased weight, which does not conform to the development trend of lightweight rail vehicles; Poor adaptability: A single mounting base structure often can only be adapted to specific models of vibration dampers or specific installation locations, resulting in poor design versatility.

[0004] In addition, a common type is the anti-snake vibration damper mounting base with a buffer cavity. Chinese utility model patent CN219544772U discloses a high-speed train and its anti-snake vibration damper mounting base, including a base body with a vibration damper mounting surface, one side of which is fixedly connected to a side beam. The base body includes a buffer section, which includes a trapezoidal cavity on the side away from the side beam. Although this solution improves structural strength and buffering effect, it has high structural and process complexity, limited production efficiency, and the cavity layout and reinforcement design increase processing difficulty; the lightweight effect is insufficient, the structure is redundant, and there is a gap with the "weight reduction requirements" of rail transit; the installation accuracy is highly dependent and the fault tolerance is low. The connection between this mounting base and the car body side beam and the vibration damper requires precise alignment through bolt holes, and the multi-cavity structure makes it difficult to control the overall shape and position tolerance of the mounting base. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and provide a mounting base for a rail vehicle anti-hunting vibration damper, which has high structural strength, good fatigue performance, light weight and strong versatility, and has a simple structure, low processing difficulty, which can reduce costs and make installation and maintenance easier.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mounting base for an anti-hunting vibration damper for rail vehicles, characterized in that it includes: a mounting base plate, two support plates, and two vibration damper connecting sleeves. The mounting base plate is bolted to the bogie frame. The two support plates are arranged in parallel and spaced apart and are vertically fixed to the upper surface of the mounting base plate. The vibration damper connecting sleeves are fixed to the upper part of the support plates one by one, and a space for accommodating the end ear ring of the anti-hunting vibration damper is formed between them.

[0007] This invention achieves a compact structure and occupies less installation space through the rational arrangement of the mounting base, supporting plate, and reinforcing rib assembly. It also effectively balances structural strength and lightweight design, optimizes stress distribution, and improves the fatigue resistance and service life of the mounting base.

[0008] Furthermore, the serpentine vibration damper mounting base also includes a root region where a reinforcing rib assembly connects the support uprights and the mounting base. The reinforcing rib assembly includes a first reinforcing rib and a second reinforcing rib; the first reinforcing rib connects the outer side of the support uprights to the upper surface of the mounting base; the second reinforcing rib connects the opposing inner sides of the two support uprights to the upper surface of the mounting base.

[0009] Furthermore, the first reinforcing rib is a triangular plate-shaped structure that is wider at the bottom and narrower at the top, and the second reinforcing rib is a rectangular plate-shaped structure. The surfaces of the first and second reinforcing ribs are perpendicular to the upper surface of the mounting base plate and the side surface of the supporting plate, respectively.

[0010] Furthermore, the first and second reinforcing ribs extend upward along the side of the support plate and connect to the bottom of the shock absorber connecting sleeve. This invention, by extending the first and second reinforcing ribs upward, creates a cross-shaped structure at the connection point between the first and second reinforcing ribs, the top of the support plate, and the bottom of the shock absorber connecting sleeve, thereby enhancing structural stability and strengthening the connection point of the shock absorber connecting sleeve.

[0011] Furthermore, the mounting base plate has multiple elongated oval bolt holes for adjusting the position of the mounting seat during installation. Multiple support feet are provided on the lower surface of the mounting base plate. This invention reduces the precision requirements for machining by providing multiple support feet on the lower surface of the mounting base plate. If surface contact is used, the machining precision requirements for the bottom of the mounting base plate and the mounting surface of the bogie frame are very high to ensure a tight fit. However, by using support feet and bolt fastening, only the positional accuracy of the bolt holes on the mounting base plate and the tightening torque of the bolts need to be ensured, which relatively reduces the precision requirements for the entire mounting surface, lowering the machining difficulty and cost. In addition, the bolt holes are elongated oval holes, allowing for fine-tuning of the position and angle of the mounting seat by adjusting the bolt tightening to meet the installation requirements of the shock absorber. Furthermore, the support feet can have different heights or shapes, increasing installation flexibility.

[0012] The beneficial effects of this utility model are: 1. This utility model optimizes stress distribution, enhances overall rigidity, and achieves lightweight design. Specifically, by incorporating multi-directional reinforcing ribs, the load transmitted from the shock absorber is effectively distributed to the mounting base and support plate, significantly reducing stress concentration at critical connection points and improving fatigue resistance and service life. Simultaneously, the support plate and reinforcing ribs form a stable box-type or frame structure, enhancing overall rigidity and minimizing deformation under working loads, ensuring optimal shock absorber performance. Furthermore, while maintaining strength, the use of ribbed structures instead of heavy solid blocks achieves structural lightweighting, reducing the vehicle's unsprung mass.

[0013] 2. This utility model, through the design of the elongated hole on the mounting base and the multiple support feet provided on the lower surface of the mounting base, allows for adjustment of the installation position within a certain range, increasing adaptability to different installation requirements, facilitating adjustments during inspection and maintenance, and improving versatility and maintainability.

[0014] 3. This utility model has a simple structure, is easy to process, install and maintain, and can reduce costs, making it highly practical in the field of urban vehicles. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] Figure 1 This is a three-dimensional schematic diagram of the mounting base structure of this utility model; Figure 2 This is a front view of the mounting base structure of this utility model; Figure 3 This is a top view of the mounting base structure of this utility model. Figure 4 yes Figure 2 A cross-sectional view along line AA.

[0017] Explanation of reference numerals in the attached figures: 1. Mounting base plate; 2. Support plate; 3. Vibration damper connecting sleeve; 4. First reinforcing rib; 5. Second reinforcing rib; 6. Bolt hole; 7. Process weight reduction hole. Detailed Implementation

[0018] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Please refer to Figures 1 to 4As shown, this embodiment of a rail vehicle anti-hunting vibration damper mounting base includes: a mounting base plate 1, two support plates 2, a reinforcing rib assembly (including a first reinforcing rib 4 and a second reinforcing rib 5), and two vibration damper connecting sleeves 3. The mounting base plate 1 is a rectangular plate with four oblong bolt holes 6 at its four corners for adjusting the position of the mounting base when bolted to the bogie frame. The two support plates 2 are triangular plates, wider at the bottom and narrower at the top. These support plates 2 are parallel and spaced apart, and vertically fixed to the upper surface of the mounting base plate 1. The gap between the two support plates 2 forms a space for accommodating the end lugs of the anti-hunting vibration damper. The vibration damper connecting sleeves 3 are fixedly mounted on the upper part of the pair of support plates 2. The vibration damper connecting sleeves 3 have through holes running from front to back for bolts to pass through and connect to the vibration damper. The axial direction of the through holes in the vibration damper connecting sleeves 3 is parallel to the axial direction of the vibration damper and forms an angle of 5° with the length direction of the support plates. A reinforcing rib assembly (including a first reinforcing rib 4 and a second reinforcing rib 5) is disposed at the root region where the support plate 2 connects to the mounting base. The reinforcing rib assemblies 4 and 5 include a first reinforcing rib 4 and a second reinforcing rib 5. The first reinforcing rib 4 is a triangular plate-like structure, wider at the bottom and narrower at the top, connecting the outer side of the support plate 2 to the upper surface of the mounting base 1. The second reinforcing rib 5 is a rectangular plate-like structure, connecting the opposite inner sides of the two support plates 2 to the upper surface of the mounting base 1. The plate surfaces of the first reinforcing rib 4 and the second reinforcing rib 5 are perpendicular to the upper surface of the mounting base 1 and the side surface of the support plate 2, respectively. This embodiment, by providing a multi-directional reinforcing rib assembly, effectively distributes the load transmitted from the vibration damper to the mounting base and the support plate, significantly reducing stress concentration at critical connection points and improving fatigue resistance and service life. The first reinforcing rib 4 and the second reinforcing rib 5 extend upwards along the side surface of the support plate 2 and connect to the bottom of the vibration damper connecting sleeve 3. The support structure formed by the reinforcing rib assembly (including the first reinforcing rib 4 and the second reinforcing rib 5) and the support plate 2, together with the mounting base plate 1 and the vibration damper connecting sleeve 3, form a cross-shaped support structure, which improves the structural strength, ensures the stability of the connection, and the connection adopts a rounded transition to avoid stress concentration.

[0020] In this embodiment, the mounting base plate 1, supporting plate 2, reinforcing rib assembly (including first reinforcing rib 4 and second reinforcing rib 5), and shock absorber connecting sleeve 3 are integrally cast from G20Mn5 material. After casting, the bolt holes 6 and the through holes of the shock absorber connecting sleeve 3 need to be machined a second time to ensure installation accuracy. While ensuring structural strength, the mounting base plate 1 and the second reinforcing rib 5 have process weight-reduction holes 7, reducing the overall weight of the structure and effectively balancing the contradiction between strength and lightweight. Four support feet are provided on the lower surface of the mounting base plate 1, reducing the machining accuracy requirements of the lower surface of the mounting base plate 1. If surface contact is used, the machining accuracy requirements for the bottom of the mounting base plate and the mounting surface of the bogie frame are very high to ensure a tight fit. However, by using support feet and bolt fastening, only the positional accuracy of the bolt holes on the mounting base plate and the tightening torque of the bolts need to be ensured, which relatively reduces the machining accuracy requirements of the entire mounting surface, lowering the processing difficulty and cost. Furthermore, bolt hole 6 is an oblong hole, allowing for fine-tuning of the mounting base's position and angle by adjusting the bolt tightening to meet the vibration damper's installation requirements. The support legs can also have different heights or shapes, increasing installation flexibility. In another embodiment, the mounting base 1, support plate 2, reinforcing rib assembly (including first reinforcing rib 4 and second reinforcing rib 5), and vibration damper connecting sleeve 3 can be welded together. The weld toes are all ground smooth to reduce stress concentration. Materials such as low-alloy high-strength steel (e.g., Q355E) are also acceptable. The specific materials and processing techniques for this mounting base structure are not limited here.

[0021] During installation, bolts are passed through the bolt holes 6 on the mounting base 1 to secure the entire mounting seat to the corresponding position on the bogie frame. The end lugs of the anti-hunting damper are inserted into the space between the two support plates 2 and secured with bolts through the through holes of the damper connecting sleeve 3. When subjected to loads transmitted from the anti-hunting damper, the load is distributed through the damper connecting sleeve 3 to the support plates 2 and the reinforcing rib assembly (including the first reinforcing rib 4 and the second reinforcing rib 5), and then from the support plates 2 and the reinforcing rib assembly (including the first reinforcing rib 4 and the second reinforcing rib 5) to the mounting base 1. The mounting base 1 then distributes the load evenly to the bogie frame (vehicle body) via bolts and the support feet at the bottom. The box-shaped or frame structure formed by the support plates and reinforcing ribs enhances the overall rigidity, minimizes deformation under working loads, and ensures that the damper performs optimally.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-snaking damper mounting bracket for a railway vehicle, characterized in that include: The mounting base plate (1), two support plates (2) and two shock absorber connecting sleeves (3) are installed. The mounting base plate (1) is bolted to the bogie frame. The two support plates (2) are arranged in parallel and spaced apart and are vertically fixed to the upper surface of the mounting base plate (1). The shock absorber connecting sleeves (3) are fixed to the upper part of the support plates (2) one by one. A space is formed between the two support plates (2) to accommodate the end ear ring of the anti-hunting shock absorber.

2. The anti-snake vibration damper mounting seat of the rail vehicle according to claim 1, characterized in that: It also includes the root region where the reinforcing rib assembly (4, 5) is connected between the support plate (2) and the mounting base plate (1).

3. The rail vehicle anti-snake damper mount of claim 2, wherein: The reinforcing rib assembly (4, 5) includes a first reinforcing rib (4) and a second reinforcing rib (5); the first reinforcing rib (4) connects the outer side of the supporting plate (2) and the upper surface of the mounting base plate (1); the second reinforcing rib (5) connects the opposite inner sides of the two supporting plates (2) and the upper surface of the mounting base plate (1).

4. The rail vehicle anti-snake damper mount of claim 3, wherein: The first reinforcing rib (4) is a triangular plate structure that is wider at the bottom and narrower at the top, and the second reinforcing rib (5) is a rectangular plate structure. The plates of the first reinforcing rib (4) and the second reinforcing rib (5) are perpendicular to the upper surface of the mounting base plate (1) and the side of the supporting plate (2), respectively.

5. The rail vehicle anti-snake damper mount of claim 1, wherein: The mounting base plate (1) has multiple elongated bolt holes (6).

6. The rail vehicle anti-snake damper mount of claim 1, wherein: The mounting base plate (1) has multiple support feet on its lower surface.

7. The rail vehicle anti-snake damper mount of claim 3, wherein: The mounting base plate (1) and the second reinforcing rib (5) have process weight reduction holes (7) on their surfaces.

8. The rail vehicle anti-snake damper mount of claim 2, wherein: The mounting base plate (1), support plate (2), reinforcing rib assembly (4, 5) and damper connecting sleeve (3) are integrally cast or welded.

9. The rail vehicle anti-snake damper mount of claim 8, wherein: All weld toes are ground smooth to reduce stress concentration.

10. The rail vehicle anti-snake damper mount of claim 1, wherein: The mounting base plate (1), support plate (2), reinforcing rib assembly (4, 5) and damper connecting sleeve (3) are made of low alloy high strength steel or cast steel.

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