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    • 54. 发明授权
      US4274764A Mine roof supporting system 失效
    • Mine roof supporting system
    • 矿山屋顶支撑系统
    • US4274764A
    • 1981-06-23
    • US107459
    • 1979-12-26
    • Paul F. Curry
    • Paul F. Curry
    • E21D23/00 , E21D23/04 , E21D15/44
    • E21D23/0418 , E21D23/0008
    • A stabilizing arrangement for mine roof support systems of the type in which a series of support units, each including a transverse beam supported at opposite ends by extensible props, are interconnected by extensible struts in a manner to be self-advancing by alternate retraction of support units from a roof supporting condition and extension of the struts to advance such retracted units relative to others of such units which are in an extended roof engaging condition. The connection of each prop to the beam in a given unit is pivotal to allow deflection of the beam and props of a supporting unit from a normal perpendicular relationship under load. The stabilizing means restores the props and beam to a normal perpendicular relationship for advancing movement of each support unit. The supporting units are further stabilized relative to the struts by prop supporting brackets permitting canting movement of the props from a perpendicular relationship with respect to the struts but maintaining the props in a generally upright position for unit advance.
    • 一种用于矿山屋顶支撑系统的稳定装置，其中一系列支撑单元（每个支撑单元包括通过可伸展道具支撑在相对端的横梁）通过可伸展的支柱以通过支撑件的交替缩回自行前进的方式相互连接 单元从屋顶支撑状态和支柱的延伸，以相对于处于扩展屋顶接合状态的这些单元的其他部分推进该缩回单元。 每个支柱在给定单元中与梁的连接是枢转的，以允许支撑单元的梁和支柱从负载下的正常垂直关系偏转。 稳定装置将道具和梁恢复到正常的垂直关系，以推进每个支撑单元的运动。 支撑单元通过支撑支撑架进一步相对于支柱而被稳定，允许支柱相对于支柱从垂直关系倾斜移动，但是将道具保持在大致直立的位置以进行单位推进。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 55. 发明授权
      US4102140A Self-advancing mine roof supports 失效
    • Self-advancing mine roof supports
    • 自行开采的屋顶支撑
    • US4102140A
    • 1978-07-25
    • US632013
    • 1975-11-14
    • Archelaius Dawson Allen
    • Archelaius Dawson Allen
    • E21D23/00 , E21D23/03 , E21D23/04 , E21D23/06 , E21D23/08 , E21D15/44
    • E21D23/0427 , E21D23/0043 , E21D23/03 , E21D23/0418 , E21D23/0472 , E21D23/06 , E21D23/081
    • The invention is concerned with mine-roof supports, especially self-advancing mine-roof supports and provides a support comprising a base, a shield inclined downwardly and rearwardly towards the rear of the base and pivotally attached to said base, a roof-engaging canopy pivotally attached to an upper part of the shield, hydraulically; extensible prop means operatively positioned between the base and said shield, and hydraulically-extensible prop means operatively positioned between the base and the canopy. In some preferred embodiments of the invention the shield is a completely non-roof-engaging member and the pivotal connection between the shield and the baseis such that raising and lowering of the shield, by the prop means between said shield and the base, does not involve material angular displacement of said prop means. The pivotal connection between the canopy and the shield conveniently includes a debris excluding joint between said canopy and shield. The space between the prop means supporting the shield and the prop means supporting the canopy is generally designed to provide a safe walkway for miners. The forward end of the canopy may be provided with an extensible and retractable extension bar and/or with a mineral-face-supporting sprag or plate. The support may have a side anti-flushing shield at at least one of its sides and said anti-flushing shield may be extendable and retractable laterally with respect to the support.
    • 本发明涉及矿顶支撑件，特别是自行进的矿顶支架，并且提供一种支撑件，其包括基部，向下并向后朝向基部的后部倾斜并枢转地附接到所述基部的护罩，顶部接合的顶盖 枢转地连接到屏蔽的上部，液压地; 可伸缩的支撑装置可操作地定位在基座和所述护罩之间，以及液压可伸展的支承装置，可操作地定位在基座和罩盖之间。 在本发明的一些优选实施例中，护罩是完全非屋顶接合构件，并且护罩和基座之间的枢转连接使得护罩通过所述护罩和基座之间的支撑装置的升高和降低不会 涉及所述支撑装置的材料角位移。 冠层和盾牌之间的枢转连接方便地包括在所述冠层和护罩之间的碎屑，不包括接头。 支撑盾构和支撑篷顶的支柱之间的空间通常被设计成为矿工提供安全的人行道。 顶篷的前端可以设置有可伸缩的延伸杆和/或具有矿物面支撑的楔块或板。 支撑件可以在其至少一侧具有侧面防冲洗屏蔽，并且所述防冲洗屏蔽件可以相对于支撑件横向延伸和缩回。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 56. 发明授权
      US3646768A Mine roof supports 失效
    • Mine roof supports
    • 矿山屋顶支援
    • US3646768A
    • 1972-03-07
    • US3646768D
    • 1970-03-31
    • GULLICK DOBSON LTD
    • WHITAKER MICHAEL E
    • E21D23/04 , E21D15/44
    • E21D23/0409 , E21D23/0418
    • A self-advancing mine roof support has at least two extensible hydraulic props, mounted on blocks of elastomeric material, and a prop aligning or positioning means. The latter comprises a retractable and extendable device operative between the props of the support so as to be responsive to angular movement thereof and operative or operable to give the props an initial setting attitude when the support has been relieved of the roof load. A preferred form of retractable and extendable device is a hydraulic ram having a pressure fluid cylinder attached to one prop and a piston working in said cylinder and acting substantially vertically on a foot or member projecting laterally from the other prop. A single prop aligning or positioning means may be arranged to align or position three, four or more props of a support.
    • 一个自推进的矿山屋顶支架至少有两个可伸缩的液压支柱，安装在弹性材料块上，以及一个支柱对准或定位装置。 后者包括在支撑件的支柱之间操作的可伸缩和可延伸的装置，以便响应于其角度运动，并且当支撑件已经被顶棚负载释放时，可操作地或可操作地向道具提供初始设置姿态。 可收缩和可延伸装置的优选形式是具有附接到一个支柱的压力流体缸和在所述气缸中工作的活塞的液压油缸，并且基本垂直地作用在从另一个支柱横向突出的脚或构件上。 可以将单个支柱对准或定位装置布置成对准或定位三个，四个或更多个支撑件的道具。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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