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公开(公告)号：US08561730B2
公开(公告)日：2013-10-22
申请号：US12729828
申请日：2010-03-23
IPC分类号： E21B10/36
摘要： A retaining assembly for a cylindrical member and support sleeve in the bore of a component of a DTH. The cylindrical member and support sleeve may, for example, be a foot valve assembly for insertion into a counter bore in a bit. The cylindrical member has a cylindrical member rigidity and at least a portion of the support sleeve has a rigidity greater than the cylindrical member rigidity. A gap is provided between the sleeve and the component bore of the DTH. The cylindrical member deforms in the gap, resulting in the cylindrical member being fixedly sandwiched between the support sleeve and the component bore.
摘要翻译： 用于圆柱形构件的保持组件和在DTH的部件的孔中的支撑套筒。 圆柱形构件和支撑套筒可以例如是用于以一点位插入到反向孔中的底阀组件。 圆柱形构件具有圆柱形构件刚性，并且支撑套筒的至少一部分具有大于圆柱形构件刚度的刚性。 在DTH的套筒和组件孔之间提供间隙。 圆柱形构件在间隙中变形，导致圆柱形构件被固定地夹在支撑套筒和构件孔之间。
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公开(公告)号：US20110232922A1
公开(公告)日：2011-09-29
申请号：US12729828
申请日：2010-03-23
摘要： A retaining assembly for a cylindrical member and support sleeve in the bore of a component of a DTH. The cylindrical member and support sleeve may, for example, be a foot valve assembly for insertion into a counter bore in a bit. The cylindrical member has a cylindrical member rigidity and at least a portion of the support sleeve has a rigidity greater than the cylindrical member rigidity. A gap is provided between the sleeve and the component bore of the DTH. The cylindrical member deforms in the gap, resulting in the cylindrical member being fixedly sandwiched between the support sleeve and the component bore.
摘要翻译： 用于圆柱形构件的保持组件和在DTH的部件的孔中的支撑套筒。 圆柱形构件和支撑套筒可以例如是用于以一点位插入到反向孔中的底阀组件。 圆柱形构件具有圆柱形构件刚性，并且支撑套筒的至少一部分具有大于圆柱形构件刚度的刚性。 在DTH的套筒和组件孔之间提供间隙。 圆柱形构件在间隙中变形，导致圆柱形构件被固定地夹在支撑套筒和构件孔之间。
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