Main friction plate for cam driver of goods train
A railway freight car and friction plate technology, which is applied to railway car body components, bogies, transportation and packaging, etc., can solve problems such as poor wear resistance, low service life, and reduced reliability, and achieve the effect of improving the driving safety factor
Inactive Publication Date: 2008-10-29
JIANGSU TIEKE NEW MATERIAL CO LTD
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Problems solved by technology
[0002] The main friction plate of the wedge of the railway freight car is a part installed on the bogie of the railway freight car. It forms the main friction pair in the vibration damping device with the wear plate of the side frame column of the vehicle. Traditionally, it is made of metal material, and its wear resistance is poor. low service life
In order to improve the wear resistance of the product, there is an existing wedge main friction plate (as shown in Figure 1) that uses polymer wear-resistant materials as raw materials. Its structure is generally composed of a main layer 11 of polymer materials and a composite layer The upper surface of the main body layer is composed of a wear-resistant layer 12 of polymer material that participates in friction. The two-layer structure is directly molded, and the interlayer adhesion is low, generally between 1800N-2900N, which reduces the reliability of the product. sex
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[0009] As shown in Figure 2, the present invention is composed of a main body layer 21, a transition layer 23 and a wear-resistant layer 22. The materials of each layer are sequentially filled into a mold and formed by high temperature and high pressure molding. The materials of each layer are:
[0010] 1. Wear-resistant layer: It is made of modified polyimide resin, mineral filler and reinforced carbon fiber through physical mixing;
[0011] 2. Transition layer: a three-dimensional woven loop fabric of glass fiber impregnated with modified polyimide resin;
[0012] 3. Body layer: It is made of modified polyimide resin and high-strength glass fiber plain weave cloth through impregnation, drying, and cutting.
[0013] The manufacturing process of the transition layer is:
[0014] 1. Three-dimensional looping fabric weaving: plain weaving is performed on three layers in the X direction at the same time, the Y direction is designed according to the parameters to control the loop heig...
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The invention relates to a railway freight car inclined wedge main friction plate, belonging to railway locomotive part. The railway freight car inclined wedge main friction plate comprises a mainbody layer which has supporting and reinforcing effect and is made of polymer material and a wearable layer which participates in the friction and is made of the polymer material; a transition connection layer is arranged between the mainbody layer and the wearable layer; the transition connection layer is made of glass fibre which is dipped by resin material; the mainbody layer, the wearable layer and the transition connection layer form a whole in a molding way. As the transition connection layer which is made of the glass fibre is arranged between the wearable layer and the mainbody layer, the railway freight car inclined wedge main friction plate changes the connection structure between layers and achieves the object of anti-shearing. The adhesion between the layers is improved by more than one time compared with the traditional structure, thus greatly improving the running safety coefficient of the railway freight car.
Description
Technical field [0001] The invention belongs to a railway locomotive component, and relates to a railway freight wedge main friction plate used on a railway freight car bogie. Background technique [0002] The main friction plate of the wedge of the railway freight car is a component installed on the railway freight car bogie. It forms the main friction pair in the vibration damping device with the side frame abrasion plate of the vehicle. Traditionally, it uses metal materials and has poor wear resistance. The service life is low. In order to improve the wear resistance of the product, there is a kind of wedge main friction plate made of polymer wear-resistant material (as shown in Figure 1). Its structure is generally composed of the main layer 11 of polymer material and a composite layer. On the upper surface of the main layer, it is composed of a high-molecular material wear-resistant layer 12 that participates in friction. The two-layer structure is directly molded, and the ...
Claims
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IPC IPC(8): B61F5/50
Inventor 吕珏
Owner JIANGSU TIEKE NEW MATERIAL CO LTD