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1. 发明授权

US5788027A Trim shoe 失效
标题翻译：修剪鞋
公开(公告)号：US5788027A
公开(公告)日：1998-08-04
申请号：US870877
申请日：1997-06-06
申请人： Bruce W. Shute , Joseph Formolo
发明人： Bruce W. Shute , Joseph Formolo
IPC分类号： F16D65/00 , F16D65/06 , F16D69/00 , F16D69/02
CPC分类号： F16D65/0037 , F16D65/062 , F16D69/02 , F16D69/025 , F16D2069/002
摘要： A composition brake shoe is used in a railway freight vehicle for reconditioning a wheel surface of a railway freight vehicle. Such brake shoe includes a brake surface having a predetermined configuration and a predetermined surface area. The composition brake shoe consists of a first friction composition material extending over the surface area of such composition brake shoe. A second friction type composition material is formed as a discrete insert, having a predetermined shape, and is molded into the first friction composition material. Such second friction composition material initially is completely embedded within the first friction composition material. One surface of the insert is disposed facing the predetermined surface area of the brake surface of the composition brake shoe. Such one surface of the insert being incrementally exposed as the first friction composition material is eroded away due to frictional engagement with the wheel tread surface during normal braking operations. The second friction composition material exhibits greater abrasive properties than the first friction composition material and consists essentially of a ceramic grinding material. Such first friction composition material extends entirely over the predetermined surface area of the brake surface of the composition brake shoe when the discrete insert has been worn away due to frictional engagement with the wheel tread surface during normal braking operations.
摘要翻译：一种组合式制动瓦用于铁路货车车辆，用于修理铁路货车的车轮表面。这种制动瓦包括具有预定构造和预定表面积的制动表面。组合闸瓦由在该组合式闸瓦的表面上延伸的第一摩擦组合物组成。第二摩擦型组合物材料形成为具有预定形状的分立插入件，并且被模制成第一摩擦组合物材料。这种第二摩擦组合物材料最初完全嵌入在第一摩擦组合物材料内。插入件的一个表面设置成面向组合闸瓦的制动表面的预定表面区域。当在正常制动操作期间，由于与轮胎胎面表面的摩擦接合，第一摩擦组合物材料被侵蚀掉，插入件的这一个表面被逐渐暴露。第二摩擦组合物材料表现出比第一摩擦组合物材料更大的研磨性能，并且基本上由陶瓷研磨材料组成。当在正常制动操作期间由于与轮胎胎面表面的摩擦接合而使分离的插入件磨损时，这种第一摩擦组合物材料完全延伸到组合式闸瓦的制动表面的预定表面区域上。

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