Railway vehicle long-stroke side bearing

Abstract

The utility model discloses a long-stroke side bearing of a railway vehicle, and relates to the technical field of train side bearings. Comprising a side bearing seat, U-shaped grooves are formed in the two sides of the upper wall face of the side bearing seat, and rolling shafts are rotationally connected into the U-shaped grooves. The train side bearing suitable for being used for a long distance is designed, the side bearing seat is made of high-strength forged steel and connected with a bogie, when a train body rolls laterally, the upper side bearing body inclines relative to the side bearing seat, the rubber pad and the springs provide elastic restoring force, the hydraulic damper generates damping force and restrains vibration, and the long-stroke design allows a larger train body side rolling angle. The curve trafficability is improved; the low-rigidity design reduces the vibration of the vehicle body and improves the comfort; the service life is prolonged and the maintenance is reduced by the high-wear-resistant material. The device has the advantages that curve passing capacity is improved, complex lines are adapted, rigidity is low, vehicle body vibration is reduced, riding comfort is improved, abrasion resistance is high, the service life is prolonged, maintenance cost is reduced, installation and maintenance are easy, and reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of railway side bearing technology, specifically a long-stroke side bearing for railway vehicles. Background Technology

[0002] Traditional side bearings in vehicles are primarily used to limit roll and provide rotational resistance, but their short travel makes them insufficient to meet the demands of modern vehicles for higher operational smoothness and curve handling capabilities. Especially in high-speed rail and heavy-haul freight applications, existing side bearings suffer from the following problems:

[0003] In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: the existing device has high rigidity, which leads to increased vehicle vibration and affects ride comfort; the side bearing wear plate is prone to wear, increasing maintenance costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a long-stroke side bearing for railway vehicles, which solves the problems of excessive rigidity in existing devices, leading to increased vehicle vibration and affecting ride comfort, and easy wear of the side bearing wear plate, increasing maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a long-stroke side bearing for railway vehicles, comprising a side bearing seat, with U-shaped grooves on both sides of the upper wall of the side bearing seat, a pair of rollers rotatably connected to each pair of U-shaped grooves, and rollers on each pair of rollers slidingly contacting the U-shaped grooves. A connecting frame is connected to the upper wall of the side bearing seat by fastening bolts, and a wear-resistant plate is connected to the connecting frame. A groove is provided inside the side bearing seat, and a plurality of springs and a plurality of hydraulic dampers are provided on the bottom surface of the groove. A side bearing body is connected to the upper end of the plurality of springs and the plurality of hydraulic dampers, and a rubber stack is connected to the upper end of the side bearing body. The rubber stack is in contact with the bottom surface of the wear-resistant plate.

[0006] Preferably, the side bearing seat is made of high-strength forged steel and is connected to the bogie.

[0007] Preferably, the rubber stack is made of high-strength, high-elasticity rubber material, providing vertical and lateral elastic support.

[0008] Preferably, some of the hydraulic dampers adopt a twin-cylinder structure to provide rotational damping force and suppress vehicle roll and yaw vibration.

[0009] Preferably, the wear-resistant plate is made of a high-strength, self-lubricating composite material.

[0010] Preferably, both rollers are made of high-strength alloy steel and have a chrome-plated surface.

[0011] Preferably, all of the springs are made of alloy steel. Beneficial effects

[0012] This invention provides a long-stroke side bearing for railway vehicles. The side bearing is designed for long-distance use, with a high-strength forged steel bearing seat connected to the bogie. During roll, the upper side bearing body tilts relative to the bearing seat. Rubber stacks and several springs provide elastic restoring force, while a hydraulic damper generates damping force to suppress vibration. The long-stroke design allows for a larger roll angle, improving curve clearance. The low-stiffness design reduces vehicle vibration and improves comfort. High-wear-resistant materials extend service life and reduce maintenance. This device improves curve clearance, adapts to complex tracks, has low stiffness, reduces vehicle vibration, improves ride comfort, has high wear resistance, extends service life, reduces maintenance costs, is easy to install and maintain, and has high reliability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] In the diagram: 1. Side bearing seat; 2. Roller; 3. Roller shaft; 4. Wear-resistant plate; 5. Connecting frame; 6. Rubber stack; 7. Side bearing body; 8. Spring; 9. Hydraulic damper. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 This utility model provides a technical solution: a long-stroke side bearing for railway vehicles, including a side bearing seat 1. Both sides of the upper wall of the side bearing seat 1 are provided with U-shaped grooves. A pair of rollers 3 are rotatably connected to each pair of U-shaped grooves. Rollers 2 are provided on each pair of rollers 3, and the rollers 2 slide in contact with the U-shaped grooves. A connecting frame 5 is connected to the upper wall of the side bearing seat 1 by fastening bolts. A wear-resistant plate 4 is connected to the connecting frame 5. A groove is provided inside the side bearing seat 1. Several springs 8 and several hydraulic dampers 9 are provided on the bottom surface of the groove. A side bearing body 7 is connected to the upper end of the several springs 8 and several hydraulic dampers 9. A rubber stack 6 is connected to the upper end of the side bearing body 7, and the rubber stack 6 contacts the bottom surface of the wear-resistant plate 4.

[0017] In this embodiment, the side bearing seat 1 is made of high-strength forged steel and is connected to the bogie.

[0018] In this embodiment, the rubber stack 6 is further configured to use high-strength, high-elasticity rubber material to provide vertical and lateral elastic support.

[0019] In this embodiment, the hydraulic dampers 9 are further configured to adopt a double-cylinder structure to provide rotational damping force and suppress vehicle body roll and yaw vibration.

[0020] In this embodiment, the wear-resistant plate 4 is further configured to be made of a high-strength, self-lubricating composite material.

[0021] In this embodiment, the pair of rollers 2 are made of high-strength alloy steel and have a chrome-plated surface.

[0022] In this embodiment, it is further configured that all of the springs 8 are made of alloy steel.

[0023] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0024] Example: The side bearing seat 1 is made of high-strength forged steel and is connected to the bogie. When the car body rolls, the upper side bearing body tilts relative to the side bearing seat 1. The rubber stack 6 and several springs 8 provide elastic restoring force, and the hydraulic damper 9 generates damping force to suppress vibration. The long stroke design allows for a larger car body roll angle, improving curve clearance. The low stiffness design reduces car body vibration and improves comfort. High wear-resistant materials extend service life and reduce maintenance. The rubber stack 6 is made of high-strength, high-elasticity rubber material, providing vertical and lateral elastic support. The hydraulic damper 9 adopts a double-cylinder structure, providing rotational damping force to suppress car body roll and yaw vibration. The wear-resistant plate 4 is made of high-strength, self-lubricating composite material to reduce friction and extend service life. The rollers 2 are all made of high-strength alloy steel with chrome plating to ensure smooth relative movement of the upper and lower side bearing bodies. The several springs 8 are all made of alloy steel spring material, which has high elastic strength.

[0025] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A long-stroke side bearing for railway vehicles, comprising a side bearing seat (1), characterized in that, The upper wall of the side bearing seat (1) is provided with U-shaped grooves on both sides. A pair of U-shaped grooves are rotatably connected to rollers (3). A pair of rollers (3) are provided with rollers (2). The rollers (2) slide in contact with the U-shaped grooves. The upper wall of the side bearing seat (1) is connected to a connecting frame (5) by fastening bolts. A wear-resistant plate (4) is connected to the connecting frame (5). The side bearing seat (1) is provided with a groove. A number of springs (8) and a number of hydraulic dampers (9) are provided on the bottom surface of the groove. A side bearing body (7) is connected to the upper end of the number of springs (8) and the number of hydraulic dampers (9). A rubber pile (6) is connected to the upper end of the side bearing body (7). The rubber pile (6) is in contact with the bottom surface of the wear-resistant plate (4).

2. The long-stroke side bearing for railway vehicles according to claim 1, characterized in that, The side bearing seat (1) is made of high-strength forged steel and is connected to the bogie.

3. The long-stroke side bearing for railway vehicles according to claim 1, characterized in that, The rubber stack (6) is made of high-strength, high-elasticity rubber material, providing vertical and lateral elastic support.

4. A long-stroke side bearing for railway vehicles according to claim 1, characterized in that, Several of the hydraulic dampers (9) adopt a double-cylinder structure to provide rotational damping force and suppress vehicle body roll and yaw vibration.

5. A long-stroke side bearing for railway vehicles according to claim 1, characterized in that, The wear-resistant plate (4) is made of high-strength, self-lubricating composite material.

6. A long-stroke side bearing for railway vehicles according to claim 1, characterized in that, Both rollers (2) are made of high-strength alloy steel and have chrome-plated surfaces.

7. A long-stroke side bearing for railway vehicles according to claim 1, characterized in that, Several of the springs (8) are made of alloy steel.

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