公开(公告)号：US5450663A

公开(公告)日：1995-09-19

申请号：US142710

申请日：1993-10-26

申请人： Frank Calandra, Jr. ,  Jerry E. Frease ,  Lajos Kovacs ,  John C. Stankus ,  Eugene H. Stewart

发明人： Frank Calandra, Jr. ,  Jerry E. Frease ,  Lajos Kovacs ,  John C. Stankus ,  Eugene H. Stewart

IPC分类号： E21D11/00 ,  B23P11/00

CPC分类号： E21D11/006 ,  Y10T29/49845

摘要： A pair of truss brackets are secured to the roof of an underground passage adjacent to opposing ribs of the passage. The truss brackets each include a roof engaging surface and a truss supporting arm member extending from the roof engaging surface. A pair of U-bolts are supported by the arm members of the truss brackets. Each arm member extends horizontally from the truss bracket to an enlarged end portion of the arm member. The U-bolt is horizontally movable in a vertically hanging position on the arm member and is restrained by the enlarged end portion from disengagement from the arm member. The U-bolts are pivoted on the truss brackets to a horizontal position for connection to truss members which are connected to each other and tensioned to apply an uplifting force to the roof. As the truss members are connected and tensioned, the U-bolts are retained for a range of horizontal movement on the arm members to facilitate adjustments in the position of the U-bolts on the truss brackets.

摘要翻译： 一对桁架支架固定在与通道的相对肋相邻的地下通道的屋顶上。 桁架支架各自包括屋顶接合表面和从屋顶接合表面延伸的桁架支撑臂构件。 一对U型螺栓由桁架支架的臂构件支撑。 每个臂构件从桁架支架水平延伸到臂构件的扩大的端部。 U型螺栓在臂构件上的垂直悬挂位置上可水平移动，并被扩大的端部约束而不与臂构件分离。 U型螺栓在桁架支架上枢转到水平位置，用于连接到桁架构件，桁架构件彼此连接并张紧以向屋顶施加提升力。 当桁架构件被连接和张紧时，U形螺栓被保持在臂构件上的水平移动范围以便于调节桁架支架上的U形螺栓的位置。

公开(公告)号：US5505562A

公开(公告)日：1996-04-09

申请号：US385930

申请日：1995-02-09

申请人： John C. Stankus ,  Jerry E. Frease

发明人： John C. Stankus ,  Jerry E. Frease

IPC分类号： E21D11/00 ,  E21D20/00 ,  E21D21/02

CPC分类号： E21D20/00 ,  E21D11/006

摘要： A mechanical truss wrench for use with a mine roof bolting machine. The wrench includes a casing having a locking bracket pivotably secured to the exterior. An input shaft extends into the casing and is positioned at a right angle to an output shaft extending out of the casing. The lower end of the input shaft is secured to the torquing member of the mine roof bolting machine. In operation, a socket on the output shaft is engaged with a head of a horizontally extending torquing bolt or similar tensioning mechanism of a truss-type mine roof utilizing U-bolts. The input shaft is rotated about a vertical axis to operate a gear train to rotate the output shaft and the socket to torque the bolt. A locking member with tabs coacts with the legs of a U-bolt or similar tensioning mechanism to prevent the casing from rotating about the axis of the input shaft and a guiding member is provided to assist in guiding the torquing bolt into the socket.

摘要翻译： 一种用于矿山屋顶螺栓机械的机械桁架扳手。 扳手包括具有可枢转地固定到外部的锁定支架的壳体。 输入轴延伸到壳体中并且与从壳体延伸出的输出轴成直角定位。 输入轴的下端固定在矿山顶板螺栓机的扭力构件上。 在操作中，输出轴上的插座与U型螺栓的桁架式矿顶的水平延伸的扭力螺栓或类似的张紧机构的头部接合。 输入轴绕垂直轴旋转以操作齿轮系以使输出轴和插座旋转以扭转螺栓。 具有翼片的锁定构件与U形螺栓或类似张紧机构的腿部共同作用以防止壳体围绕输入轴的轴线旋转，并且提供引导构件以辅助将扭矩螺栓引导到插座中。

公开(公告)号：US5302056A

公开(公告)日：1994-04-12

申请号：US962255

申请日：1992-10-16

申请人： Frank Calandra, Jr. ,  Jerry E. Frease ,  Lajos Kovacs ,  John C. Stankus ,  Eugene H. Stewart

发明人： Frank Calandra, Jr. ,  Jerry E. Frease ,  Lajos Kovacs ,  John C. Stankus ,  Eugene H. Stewart

IPC分类号： E21D11/00 ,  E21D20/00

CPC分类号： E21D11/006 ,  Y10T29/49845

摘要： A pair of truss brackets are secured to the roof of an underground passage adjacent to opposing ribs of the passage. The truss brackets each include a roof engaging surface and a truss supporting arm member extending from the roof engaging surface. A pair of U-bolts are supported by the arm members of the truss brackets. Each arm member extends horizontally from the truss bracket to an enlarged end portion of the arm member. The U-bolt is horizontally movable in a vertically hanging position on the arm member and is restrained by the enlarged end portion from disengagement from the arm member. The U-bolts are pivoted on the truss brackets to a horizontal position for connection to truss members which are connected to each other and tensioned to apply an uplifting force to the roof. As the truss members are connected and tensioned, the U-bolts are retained for a range of horizontal movement on the arm members to facilitate adjustments in the position of the U-bolts on the truss brackets.

摘要翻译： 一对桁架支架固定在与通道的相对肋相邻的地下通道的屋顶上。 桁架支架各自包括屋顶接合表面和从屋顶接合表面延伸的桁架支撑臂构件。 一对U型螺栓由桁架支架的臂构件支撑。 每个臂构件从桁架支架水平延伸到臂构件的扩大的端部。 U型螺栓在臂构件上的垂直悬挂位置上可水平移动，并被扩大的端部约束而不与臂构件分离。 U型螺栓在桁架支架上枢转到水平位置，用于连接到桁架构件，桁架构件彼此连接并张紧以向屋顶施加提升力。 当桁架构件被连接和张紧时，U形螺栓被保持在臂构件上的水平移动范围以便于调节桁架支架上的U形螺栓的位置。

公开(公告)号：US5244314A

公开(公告)日：1993-09-14

申请号：US722125

申请日：1991-06-27

申请人： Frank Calandra, Jr. ,  Jerry E. Frease ,  John C. Stankus

发明人： Frank Calandra, Jr. ,  Jerry E. Frease ,  John C. Stankus

IPC分类号： E21D20/02 ,  E21D21/00

CPC分类号： E21D21/008 ,  E21D20/02

摘要： An expansion assembly for use with resin on a mine roof bolt includes an expandable shell and a camming plug having a first end wall spaced from a second end wall by a tapered body portion. Four equidistantly spaced grooves extend longitudinally in the tapered body portion. Pairs of grooves are connected across the second end wall by transverse grooves that form resin flow channels. A rib formation extends outwardly from the side wall adjacent to and removed from a groove. The rib formation defines the edge of the groove and abuts an edge of one of the fingers of the expandable shell to align the grooves of the plug with the respective slots formed between the shell fingers. This alignment assures unobstructed flow of the mixed resin downwardly through the plug grooves and shell slots into surrounding relation with the expansion assembly for secure bonding of the assembly with the walls of a bore hole.

摘要翻译： 一种用于矿山屋顶螺栓上的树脂的膨胀组件包括可膨胀外壳和凸轮塞，其具有通过锥形主体部分与第二端壁隔开的第一端壁。 四个等间隔开的槽在锥形主体部分中纵向延伸。 一对槽通过形成树脂流动通道的横向沟槽跨越第二端壁连接。 肋状结构从与沟槽相邻并从沟槽移除的侧壁向外延伸。 肋形成限定了凹槽的边缘并且邻接可膨胀壳体的一个指状物的边缘，以将插塞的凹槽与形成在壳指之间的相应狭槽对准。 这种对准确保混合树脂的畅通无阻的流动通过插塞槽和壳体槽与膨胀组件的周围关系，用于将组件与钻孔的壁牢固地接合。

公开(公告)号：US5082399A

公开(公告)日：1992-01-21

申请号：US519010

申请日：1990-05-04

申请人： Jerry E. Frease ,  John C. Stankus ,  Eugene H. Stewart ,  Glen S. Grissinger

发明人： Jerry E. Frease ,  John C. Stankus ,  Eugene H. Stewart ,  Glen S. Grissinger

IPC分类号： E21D20/02 ,  E21D21/00

CPC分类号： E21D20/02 ,  E21D21/0093

摘要： The mine roof anchor includes a roof bolt assembly with an expansion shell assembly secured at the end of the bolt inserted into the bore hole. The expansion shell assembly includes a friction reducing means to increase the horizontal force on the leaves and the bolt assembly includes an adjustable resin retaining washer to compress the resin in the bore hole.

摘要翻译： 矿顶锚固件包括一个屋顶螺栓组件，其具有固定在插入钻孔中的螺栓端部的膨胀壳体组件。 膨胀壳组件包括减小摩擦力的装置，以增加叶片上的水平力，并且螺栓组件包括可调节树脂保持垫圈以压缩钻孔中的树脂。

公开(公告)号：US5076733A

公开(公告)日：1991-12-31

申请号：US519009

申请日：1990-05-04

申请人： Jerry E. Frease

发明人： Jerry E. Frease

IPC分类号： F16B1/00 ,  F16B13/00 ,  F16B13/06 ,  F16B13/14

CPC分类号： F16B13/066 ,  F16B13/141 ,  F16B2001/0021 ,  F16B2013/008

摘要： A mechanical expansion shell assembly has an expansion shell with a plurality of leaves and a plug with a plurality of sloped surfaces. The inner surfaces of the leaves are positioned in overlying relation with the sloped surfaces of the plug. A friction reducing material is positioned between the overlying surfaces and is arranged to reduce the torque applied to the roof bolt connected to the expansion shell assembly to obtain a preselected lateral force on the expansion shell leaves. In another embodiment, a friction reducing material is positioned between a nut threaded on the roof bolt and the underside of the expansion shell ring portion.

摘要翻译： 机械膨胀壳体组件具有带有多个叶片的膨胀壳体和具有多个倾斜表面的塞子。 叶片的内表面与插头的倾斜表面以重叠的关系定位。 摩擦减小材料位于上覆表面之间，并且布置成减小施加到连接到膨胀壳组件的顶部螺栓的扭矩，以在膨胀壳叶上获得预选的横向力。 在另一个实施例中，摩擦减小材料位于螺栓在屋顶螺栓上的螺母和膨胀壳环部分的下侧之间。