Spider for goods train vehicle

A technology for railway wagons and vehicles, which is applied in the field of center discs, and can solve the problems that cannot be alleviated or eliminated, vehicle overturning, and snake-like instability, and achieve the effects of overcoming snake-shaped instability, increasing speed, and small frictional resistance

CN101152867AInactive Publication Date: 2008-04-02CRRC YANGTZE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2008-04-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a center plate used in a vehicle for railway lorry which comprises a body center plate [1] and a truck center plate [5]. A downward bulged circular arc face is arranged at the bottom of the body center plate [1] along the vehicle width direction. A concaved circular arc face which is matched with the circular arc face of the body center plate is arranged on the truck center plate [5]. The curve radius of the circular arc face of the body center plate [1] is smaller than the curve radius of the circular arc face of the truck center plate [5]. The present invention has the advantages that the friction resistance between the body center plate and the truck center plate is small when the vehicle swings which facilities to the swing of the vehicle, partly overcomes the snake-like instability when the vehicle runs and increase the speed when the train passes through a curve or a crossroad.
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Description

technical field

[0001] The present invention relates to center pans for railway wagon vehicles. Background technique

[0002] The center plate is the part connecting the carriage and the bogie. It is composed of an upper center plate and a lower center plate. The upper center plate is fixed at the bottom of the carriage, and the lower center plate is fixed at the center of the bolster of the bogie. The upper and lower center plates are supported by the horizontal plates in contact with each other. And transfer the vertical load of the car body. At present, the trucks used in China, whether they are gondola cars, flat cars, tank cars, boxcars, or most special vehicles, all use the primary suspension system, which has a relatively simple structure, is easy to overhaul, and has low manufacturing costs. It's totally doable at low speeds. However, after the speed is increased, the contradiction between the stability, smoothness and curve passing performance of the vehicle is mo...

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Embodiment Construction

[0012] Referring to Fig. 1 and Fig. 2, the bottom of the upper center plate 1 is designed as a downwardly convex spherical surface 6, and above the lower center plate 5 there is a concave elliptical surface 7 matching with the upper center plate spherical surface 6. The sectional profile of the ellipse 7 shown in Figure 1 is the profile of the major axis direction, the sectional profile of the ellipse 7 shown in Figure 2 is the profile of the minor axis direction respectively, the minor axis radius of the ellipse 7 is the same as the spherical surface at the bottom of the upper center plate 6 with the same curve radius. The radius of the curve of the upper center plate 1 spherical surface 6 should not be too small, otherwise it will cause the load to be too concentrated and not conducive to the normal use of the vehicle, and if it is too large, it will lose its due effect. Preferably 115mm. The major axis radius of the ellipse 7 is 15-18 mm larger than the minor axis radius, ...