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Axle box suspension device and bogie

A suspension device and axle box technology, applied in the field of rail vehicles, can solve the problems of reduced vibration damping performance, high manufacturing difficulty, poor manufacturability and reliability, etc., and achieve no reduction in vibration damping effect, fewer parts and less manufacturing difficulty. Effect

Pending Publication Date: 2021-05-28
CRRC QIQIHAR ROLLING CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] This structure mainly has the following disadvantages: first, the suspension ring 3' is installed on the cantilever shaft, and the cantilever shaft is a welded structure, the structural force is not ideal, and the manufacturability and reliability are poor
Secondly, after the friction surface that cooperates with the axle box 4' wears out, the angle of the suspension ring 3' becomes smaller, which will lead to a decrease in vibration damping performance
Furthermore, after the suspension ring 3' and the cantilever shaft are worn out, the angle of the suspension ring 3' becomes smaller, which will also lead to a decrease in vibration damping performance.
Finally, the structure is complex, the number of parts is too large, and it is difficult to manufacture

Method used

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  • Axle box suspension device and bogie
  • Axle box suspension device and bogie
  • Axle box suspension device and bogie

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Embodiment Construction

[0051] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] In this article, terms such as "upper, lower, left, and right" are established based on the positional relationship shown in the drawings. Depending on the drawings, the corresponding positional relationship may also change accordingly. For the part of the definition, the direction of the literal definition is preferred, so it cannot be understood as an absolute limitation on the scope of protection; moreover, relative terms such as "first" and "second" are only used to connect a Another component having the same name does not necessarily require or imply any such actual relationship or order between these components.

[0053] Please refer to figure 2 , image 3 , figure 2 It is a structural schematic diagram of a three-...

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Abstract

Disclosed are an axle box suspension device and a bogie. The axle box suspension device comprises an axle box and guide frames located on the two sides of the axle box respectively, springs are arranged between the guide frames and spring bearing parts of the axle box respectively, and swing blocks and spring damping gears are arranged between one or two of the guide frames and the springs; the upper end of each swing block matches the guide frame in a rotational degree of freedom mode, the lower end of each swing block is matched with each spring damping gear in a rotational degree of freedom mode, an inclined angle is formed between each swing block and the vertical direction, and the lower end of each swing block deviates to the axle box; a first contact face is arranged on the side, corresponding to the axle box, of the spring damping gear, the spring damping gear is tightly attached to a second contact face on the side face of the axle box through the first contact face, and the first contact face and the second contact face can move relatively. The invention can improve the dynamic performance of the vehicle and ensure that the dynamic performance of the vehicle is continuous and stable.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to an axle box suspension device for railway freight cars. The invention also relates to a bogie provided with said axlebox suspension. Background technique [0002] A railway freight car generally includes a car body, a bogie, a brake device, a coupler buffer device, etc. The function of the bogie is to support the car body, guide the vehicle along the track, and bear various loads from the car body and the line. Therefore, the bogie is an important part of the railway freight car and the core component that affects the dynamic performance of the vehicle. [0003] There are two types of railway freight car bogies: welded frame bogie and cast steel three-piece bogie. The welded frame bogie is mainly composed of frame, foundation braking device, axle box suspension vibration damping device and elastic side bearing, etc. The axle box suspension device is composed of the wheel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/30
CPCB61F5/301
Inventor 许善超张文龙耿忠华李超穆凤军徐世峰
Owner CRRC QIQIHAR ROLLING CO LTD
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