公开(公告)号：US20240254860A1

公开(公告)日：2024-08-01

申请号：US18423787

申请日：2024-01-26

申请人： Center Rock Inc.

发明人： Leland H. Lyon

IPC分类号： E21B34/10 ,  E21B4/14

CPC分类号： E21B34/10 ,  E21B4/14

摘要： A down-the-hole drill hammer including a drill bit about a distal end of the hammer and a piston for percussively contacting the drill bit. The drill hammer further includes a valve assembly for supplying and exhausting drive fluid to and from the piston, the valve assembly having a valve housing in fluid communication with drive fluid supply ports, drive ports and exhaust ports, and a control valve movable within the valve housing and in fluid communication with the valve housing. The drill hammer further includes a piston follower valve unconnected to the piston movable within the control valve for controlling positioning of the control valve and pressures applied to the piston via the drive ports and exhaust ports.

公开(公告)号：US11078736B2

公开(公告)日：2021-08-03

申请号：US15875710

申请日：2018-01-19

申请人： Center Rock Inc.

发明人： Leland H. Lyon

IPC分类号： E21B21/10 ,  E21B1/00 ,  E21B34/12 ,  E21B4/14 ,  E21B6/00

摘要： A flow diversion sub for a down-the-hole drill comprising a housing assembly that includes a housing body, a cap extending from the housing body, and a drive shaft having an upper central blind hole and a lower central blind hole spaced from the upper central blind hole, wherein the drive shaft is received within the housing assembly. In operation, one of the housing assembly and drive shaft moves between a first position and a second position relative to the other of the housing assembly and drive shaft. In the first position the upper central blind hole is in fluid communication with the lower central blind hole, and in the second position the upper central blind hole is blocked from being in fluid communication with the lower central blind hole.

公开(公告)号：US10024103B2

公开(公告)日：2018-07-17

申请号：US15014973

申请日：2016-02-03

申请人： Center Rock Inc.

发明人： Leland H. Lyon ,  Abram Simeon Lance

IPC分类号： E21B4/14

CPC分类号： E21B4/14

摘要： A down-the-hole drill hammer is provided that includes a housing, a drill bit, a piston, a roller ramp clutch and a coupler. The DHD is configured to have a bit-piston-clutch-casing torque circuit which concurrently rotates the piston and drill bit. The drill bit is positioned proximate a distal end of the housing. The piston is configured to reciprocally move within the housing along an axial direction. The piston includes a helical spline and an axial spline on a surface of the piston. The roller ramp clutch circumscribes and engages the piston. The coupler circumscribes and engages the piston and drill bit.

公开(公告)号：US20180171720A1

公开(公告)日：2018-06-21

申请号：US15850803

申请日：2017-12-21

申请人： Center Rock Inc.

发明人： Leland H. Lyon

IPC分类号： E21B10/22 ,  E21B4/14 ,  E21B10/38 ,  E21B10/44

摘要： A down-the-hole drill hammer is provided that includes a housing, a drill bit proximate a distal end of the housing, and a roller bearing assembly. The roller bearing assembly circumscribes the drill bit. The roller bearing assembly includes a race and a plurality of rollers. The plurality of rollers are operatively engaged with the race.

公开(公告)号：US08800690B2

公开(公告)日：2014-08-12

申请号：US12621155

申请日：2009-11-18

申请人： Leland H. Lyon ,  Warren Thomas Lay

发明人： Leland H. Lyon ,  Warren Thomas Lay

IPC分类号： E21B4/14 ,  E21B1/38 ,  E21B31/16

CPC分类号： E21B4/14

摘要： A down-the-hole drill hammer is provided that includes a housing, a solid core piston mounted within the housing, a seal located between the solid core piston and the housing, and a backhead configured to exhaust working fluid volumes about a proximal end of the DHD hammer. The backhead includes a check valve assembly having a plug seal that can be moved to a closed seal position by gravity. A DHD hammer having a segmented chuck assembly is also provided. The segmented chuck assembly includes a plurality of chuck segments forming a cylindrical chuck assembly.

摘要翻译： 提供了一种井下钻锤，其包括壳体，安装在壳体内的实心芯柱塞活塞，位于固体岩心活塞和壳体之间的密封件，以及被构造成将工作流体体积围绕近端 DHD锤子。 后端包括具有塞子密封件的止回阀组件，其可以通过重力移动到封闭的密封位置。 还提供了具有分段卡盘组件的DHD锤。 分段卡盘组件包括形成圆柱形卡盘组件的多个卡盘段。

公开(公告)号：US20090321143A1

公开(公告)日：2009-12-31

申请号：US12494759

申请日：2009-06-30

申请人： Leland H. LYON

发明人： Leland H. LYON

IPC分类号： E21B6/00

CPC分类号： E21B4/14 ,  E21B7/06 ,  E21B7/067

摘要： A down-the-hole drill (DHD) hammer having a casing, a drill bit proximate a distal end of the casing, a piston mounted within the casing and a self-indexing drive transmission is provided. The piston includes a plurality of helical and axial splines. The drive transmission includes a driver sleeve, a driven sleeve and a wrap spring clutch assembly. The driver sleeve and driven sleeve are housed within the casing and circumscribes the piston. The driver sleeve includes a plurality of openings for receiving a plurality of bearings. The driver sleeve bearings are configured to operatively engage the helical splines on the piston. The wrap spring clutch assembly includes a wrap spring circumscribing the driver sleeve and driven sleeve. The driven sleeve operatively engages the drill bit to rotationally index the drill bit.

摘要翻译： 具有壳体的钻孔钻头（DHD），靠近壳体的远端的钻头，安装在壳体内的活塞和自动转位传动装置。 活塞包括多个螺旋和轴向花键。 驱动传动装置包括驱动器套筒，从动套筒和卷簧弹簧离合器组件。 驱动器套筒和从动套筒容纳在壳体内并包围活塞。 驱动器套筒包括用于容纳多个轴承的多个开口。 驱动器套筒轴承构造成可操作地接合活塞上的螺旋花键。 卷绕弹簧离合器组件包括围绕驱动器套筒和从动套筒的卷绕弹簧。 从动套筒可操作地接合钻头以旋转地索引钻头。

公开(公告)号：US10100578B2

公开(公告)日：2018-10-16

申请号：US14295926

申请日：2014-06-04

申请人： Center Rock Inc.

发明人： Leland H. Lyon

IPC分类号： E21B4/14

摘要： A down-the-hole drill hammer for optimizing air consumption. The down-the-hole drill hammer includes a housing, a backhead connected to the housing, and a pressure control check valve assembly mounted within the housing. The pressure control check valve assembly includes a first check valve and a second check valve. The first check valve controls a flow of working fluid through the backhead. The second check valve is mounted to the first check valve and controls a flow of working fluid through the first check valve.

公开(公告)号：US09938774B2

公开(公告)日：2018-04-10

申请号：US14068121

申请日：2013-10-31

申请人： Center Rock Inc.

发明人： Leland H. Lyon

IPC分类号： E21B10/36 ,  E21B10/38 ,  E21B10/46

CPC分类号： E21B10/36 ,  E21B10/38 ,  E21B10/46

摘要： A non-rotational drill bit for a down-the-hole drill hammer is provided that includes a head and a shank extending from the head. The head includes a plurality of axisymmetric cutting members about its working face. The drill bit also includes a porting system that includes a central through hole, an air inlet port, an exhaust outlet port and a central exhaust port for exhausting air from an interior of the drill hammer and for clearing drilling debris from the face of the drill bit.

公开(公告)号：US20140131116A1

公开(公告)日：2014-05-15

申请号：US14068121

申请日：2013-10-31

申请人： Center Rock Inc.

发明人： Leland H. Lyon

IPC分类号： E21B10/36

CPC分类号： E21B10/36 ,  E21B10/38 ,  E21B10/46

摘要： A non-rotational drill bit for a down-the-hole drill hammer is provided that includes a head and a shank extending from the head. The head includes a plurality of axisymmetric cutting members about its working face. The drill bit also includes a porting system that includes a central through hole, an air inlet port, an exhaust outlet port and a central exhaust port for exhausting air from an interior of the drill hammer and for clearing drilling debris from the face of the drill bit.

摘要翻译： 提供一种用于井下钻锤的非旋转钻头，其包括从头部延伸的头部和柄部。 头部围绕其工作面包括多个轴对称切割构件。 该钻头还包括一个移动系统，其包括中央通孔，进气口，排气出口和中央排气口，用于从钻锤的内部排出空气，并用于从钻头的表面清除钻探碎屑 位。

公开(公告)号：US20120006598A1

公开(公告)日：2012-01-12

申请号：US12909495

申请日：2010-10-21

申请人： Leland H. LYON ,  Warren Thomas LAY

发明人： Leland H. LYON ,  Warren Thomas LAY

IPC分类号： E21B4/14

CPC分类号： E21B4/14

摘要： A down-the-hole drill hammer having a housing, a backhead and a tubular sliding check valve assembly that includes a distal end, a threaded male proximal end, a supply inlet and an exhaust port. The exhaust port communicates between an interior of the backhead and an exterior of the backhead. The tubular sliding check valve assembly includes a distributor, a sliding valve, and a biasing member. The distributor has a central opening extending through the distributor, an aperture extending through the distributor, and an exhaust gallery. The sliding valve is slidable along the central opening. The biasing member biases the sliding valve to a closed position.

摘要翻译： 一种井下钻锤，其具有壳体，后端和管状滑动止回阀组件，其包括远端，螺纹公近端，供应入口和排气口。 排气口在后端的内部和后端的外部之间连通。 管状滑动止回阀组件包括分配器，滑阀和偏置构件。 分配器具有延伸穿过分配器的中心开口，延伸穿过分配器的孔和排气管。 滑阀可沿中心开口滑动。 偏置构件将滑阀偏压到关闭位置。