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公开(公告)号：US20180257677A1
公开(公告)日：2018-09-13
申请号：US15453546
申请日：2017-03-08
摘要： A friction shoe for a railway car truck is provided. The railway truck comprises two parallel side frames, a suspension spring assembly supported by the side frames, and a bolster transversely mounted between the side frames and supported by the suspension spring assembly. Each side frame has at least one vertical support face, and the bolster has at least one sloped support face. The friction shoe comprises a sloped wall engaging the sloped support face of the bolster, a vertical wall engaging the side frame vertical support face, and a bottom base engaging and supported by a suspension control spring group which comprises three concentrically nested coil springs which provide a normal force on the column wear plate of between 3000 and 5000 pounds in the static empty railway car truck condition and between 7,500 and 12,000 pounds force under the static loaded railway car truck condition.
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公开(公告)号：US08991318B2
公开(公告)日：2015-03-31
申请号：US13834080
申请日：2013-03-15
IPC分类号： B61F5/52
摘要： A stabilized railway car truck consists of two side frames and a holster. The bolster has laterally opposite ends, each end extending into and supported within a side frame opening on a spring group. The stabilized railway car truck also includes a transom extending into, and supported within, a side frame opening. The spring group is supported at each transom end. Each side frame has a pedestal opening at each end that receive a rotating lug to accept a elastomeric steering pad and bearing adapter. The attachment of the side frames and transom is a rigid pivotal connection. Friction shoes between the side frames and bolster provide damping of an initial low to a high rate friction once engaged. The pivotal decoupling of the side frame and transom, and the lateral movement of the friction shoes to the bolster, eliminates track displacement irregularities from reacting at the bolster and into the vehicle.
摘要翻译： 稳定的铁路车辆卡车由两个侧框架和皮套组成。 枕头具有横向相对的端部，每个端部延伸并且支撑在弹簧组上的侧框架开口内。 稳定的铁路车辆卡车还包括延伸到侧框架开口中并且支撑在侧框架开口中的横梁。 弹簧组在每个横梁端支撑。 每个侧框架在每个端部处具有基座开口，其接收旋转的凸耳以接受弹性体转向垫和轴承适配器。 侧框架和横梁的连接是刚性的枢转连接。 侧框架和扶手之间的摩擦鞋提供初始低到一旦接合的高速摩擦的阻尼。 侧框架和横梁的关键解耦以及摩擦鞋与摇枕的横向移动消除了轨道位移不规则性，从而在摇枕和车辆中发生反应。
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公开(公告)号：US20140261064A1
公开(公告)日：2014-09-18
申请号：US13834080
申请日：2013-03-15
IPC分类号： B61F5/52
摘要： A stabilized railway car truck consists of two side frames and a holster. The bolster has laterally opposite ends, each end extending into and supported within a side frame opening on a spring group. The stabilized railway car truck also includes a transom extending into, and supported within, a side frame opening. The spring group is supported at each transom end. Each side frame has a pedestal opening at each end that receive a rotating lug to accept a elastomeric steering pad and bearing adapter. The attachment of the side frames and transom is a rigid pivotal connection. Friction shoes between the side frames and bolster provide damping of an initial low to a high rate friction once engaged. The pivotal decoupling of the side frame and transom, and the lateral movement of the friction shoes to the bolster, eliminates track displacement irregularities from reacting at the bolster and into the vehicle.
摘要翻译： 稳定的铁路车辆卡车由两个侧框架和皮套组成。 枕头具有横向相对的端部，每个端部延伸并且支撑在弹簧组上的侧框架开口内。 稳定的铁路车辆卡车还包括延伸到侧框架开口中并且支撑在侧框架开口中的横梁。 弹簧组在每个横梁端支撑。 每个侧框架在每个端部处具有基座开口，其接收旋转的凸耳以接受弹性体转向垫和轴承适配器。 侧框架和横梁的连接是刚性的枢转连接。 侧框架和扶手之间的摩擦鞋提供初始低到一旦接合的高速摩擦的阻尼。 侧框架和横梁的关键解耦以及摩擦鞋与摇枕的横向移动消除了轨道位移不规则性，从而在摇枕和车辆中发生反应。
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