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公开(公告)号：US20150053904A1
公开(公告)日：2015-02-26
申请号：US14381317
申请日：2013-02-28
发明人： Thomas Prisk
IPC分类号： B66F3/30
CPC分类号： B66F3/30 , F15B15/261 , F15B15/262 , F15B15/264
摘要： The invention relates to an extension device, lifting device or jack that can be locked in a raised configuration and used to safely support a raised load. An extension device according to the invention comprises a housing having a closed first end and an open second end, a support member inside the housing projecting from the first end thereof, a piston slideably mounted in the housing around the support member, means for extending the piston out of the second end of the housing, means for retracting the piston into the housing, and a locking mechanism for releasably locking the piston to the support member, wherein the locking mechanism comprises one or more locking members mounted on the support member operable to be selectively moved in and out of locking engagement with the piston.
摘要翻译： 本发明涉及一种可以被锁定在凸起构型中并用于安全地支撑凸起载荷的延伸装置，提升装置或千斤顶。 根据本发明的延伸装置包括具有闭合的第一端和敞开的第二端的壳体，在壳体内部的从其第一端突出的支撑构件，可滑动地安装在壳体中围绕支撑构件的活塞， 活塞离开壳体的第二端，用于将活塞缩回到壳体中的装置，以及用于将活塞可释放地锁定到支撑构件的锁定机构，其中锁定机构包括安装在支撑构件上的一个或多个锁定构件， 选择性地移动进入和离开与活塞锁定接合。
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公开(公告)号：US20140251468A1
公开(公告)日：2014-09-11
申请号：US14125033
申请日：2011-06-10
申请人： Klaus Biester , Norbert Lenz
发明人： Klaus Biester , Norbert Lenz
CPC分类号： F16K37/0041 , E21B33/062 , F15B15/264 , F15B15/2861 , F16K31/042 , Y10T137/8225
摘要： A locking device is used for locking at least a piston associated with an operating element of a valve, a choke, a blowout preventer or some other unit used in the field of oil/natural gas drilling and/or oil/natural gas production. The locking device comprises a sleeve, which is axially displaceable relative to the piston and which is threadedly engaged with a rotatably supported rod for displacement in an axial direction. The rod is drivingly connected to a motor. In order to be able to determine, by means of simple structural measures, the position of the piston for each of its positions in a sufficiently precise and reproducible manner, the locking device is provided with a position sensor, which extends from a fixed point through a longitudinal bore of the lock rod up to the hydraulic piston and by means of which a distance between the piston and the fixed point can be detected.
摘要翻译： 锁定装置用于至少锁定与在油/天然气钻井和/或石油/天然气生产领域中使用的阀，扼流器，防喷器或其它单元的操作元件相关联的活塞。 锁定装置包括套筒，该套筒可相对于活塞轴向移动，并且与可旋转地支撑的杆螺纹接合，用于沿轴向移位。 杆被驱动地连接到电动机。 为了能够通过简单的结构措施，以足够精确和可再现的方式确定活塞对于其每个位置的位置，锁定装置设置有位置传感器，其从固定点延伸到 锁定杆的纵向孔直到液压活塞，借助于此可以检测活塞和固定点之间的距离。
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公开(公告)号：US07174828B2
公开(公告)日：2007-02-13
申请号：US11142112
申请日：2005-06-01
CPC分类号： F15B15/1466 , F15B15/1409 , F15B15/264
摘要： A linear hydraulic actuator comprises a hollow main piston axially moveable in an elongate cylinder under the influence of hydraulic pressure, the main piston defining a bore within which a seal member is provided, the seal member forming a sliding seal with the bore of the main piston.
摘要翻译： 线性液压致动器包括在液压的影响下在细长气缸中可轴向运动的中空主活塞，主活塞限定了一个孔，密封构件设置在该孔内，密封构件与主活塞的孔形成滑动密封 。
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4.发明申请Device for controlling the oscillation of the arm of a handling equipment of the swingable lever type 失效用于控制摆动杆类型的搬运设备的臂的摆动的装置公开(公告)号：US20030089225A1
公开(公告)日：2003-05-15
申请号：US10252550
申请日：2002-09-24
申请人： VEP AUTOMATION S.R.L
发明人： Ener Varetto , Lio Piccolo
IPC分类号： F01B009/00
CPC分类号： F15B15/264 , B25B5/122 , B25B5/16
摘要： A handling equipment of the swingable arm type comprises a double acting cylinder within whose chamber a main piston is sealingly mounted, which is slidable owing to the selective delivery of fluid under pressure at opposite zones of the chamber, which is connected to a rod associated to the arm with a toggle joint. The equipment comprises a device for controlling the oscillation of the arm, including: a cavity of the rod having a nut screw, a screw member with a threaded shank in engagement with the nut screw, a rotatable head opposite to the rod and not slidably mounted with respect to the cylinder, and means for controlling the rotation of the screw member, associated with its head in order to brake the rotation of the screw member following to an anomalous condition in the feeding of fluid under pressure to the chamber of the cylinder.
摘要翻译： 可摆动臂式的处理设备包括一个双作用缸，其腔室内密封地安装一个主活塞，由于在腔室的相对的区域处选择性地输送流体，该流体可以被滑动 手臂与肘节关节。 该设备包括用于控制臂的摆动的装置，包括：杆的腔体，其具有螺母螺钉;螺纹构件，其具有与螺母螺钉接合的螺纹杆，与杆相对的可旋转头部，并且不可滑动地安装 相对于气缸，以及用于控制与其头部相关联的螺钉构件的旋转的装置，以便在压力下的流体供给到气缸的腔室中的异常状态之后制动螺杆构件的旋转。
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公开(公告)号：US5174662A
公开(公告)日：1992-12-29
申请号：US791901
申请日：1991-11-12
申请人： John H. Harvey
发明人： John H. Harvey
CPC分类号： F15B15/264 , F16C19/522 , F16C19/547 , F16C39/02 , F15B2015/1495 , F16C41/001
摘要： A shaft is supported in a housing by single row, deep-groove, radial ball bearings having diametral clearances which will permit axial displacement between their inner and outer races, abutment faces which are located with respect to the shaft and housing respectively engage the inner and outer races respectively of the bearings so as to take up play which results from the diametral clearances, abutment elements which engage the respective inner races can coact with the housing as a result of increase in the aforesaid axial displacements, to provide a braking effect between the shaft and the housing.
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公开(公告)号：US4932311A
公开(公告)日：1990-06-12
申请号：US229062
申请日：1988-08-05
申请人： Kazuo Mibu , Yoshihide Ohi , Hiromitsu Yamamoto
发明人： Kazuo Mibu , Yoshihide Ohi , Hiromitsu Yamamoto
CPC分类号： F15B15/2823 , F15B15/264 , G05B19/232 , F15B2015/1495 , G05B2219/41281 , G05B2219/41282 , G05B2219/41301 , G05B2219/41306 , G05B2219/43008 , G05B2219/43087
摘要： A fluid apparatus includes a pneumatic cylinder having a main body, a piston, and a hollow rod. A ball screw shaft engaged with a ball nut fixed to the piston is rotatably and axially unmovably mounted in the cylinder and extends in the hollow rod. A magnetic brake for braking the ball screw shaft is fixed to an end portion of the main body of the cylinder. The number of revolutions of the ball screw shaft is detected and outputted in a signal form by a rotary encoder. A primary solenoid controlled valve reciprocates the piston by connecting a pressure source either to a first or second port of the cyliner, and secondary solenoid controlled valves connect a pressure source either to a first braking pressure port or to a second braking pressure port. A controller outputs a drive signal for controlling the primary solenoid controlled valve, and outputs a primary braking signal and a secondary braking signal according to a corresponding operational section as well as deviation of the number of revolutions of the ball screw shaft from a target value. The primary braking signal switches on or off the secondary solenoid controlled valves to apply back pressure to the piston, and the secondary braking signal is for operting the magentic brake.
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公开(公告)号：US4365539A
公开(公告)日：1982-12-28
申请号：US352044
申请日：1982-02-24
申请人： Eugene J. Martin , Thomas Rollins
发明人： Eugene J. Martin , Thomas Rollins
CPC分类号： F15B15/264 , F02K1/76 , F15B2015/1495
摘要： A fluid pressure actuator includes a lock mechanism for locking the actuator against movement in one end position, and an external lock release lever engageable with an external extension of the lock mechanism for releasing same. The lock release lever is engageable by a lock piston upon application of system pressure thereto to release the lock mechanism. During movement of the lock piston in the unlocking direction, and after disengagement of the lock mechanism, system pressure is ported through the lock piston both to the extend side of the actuator and the opposite end of the lock piston. By using substantially the same size seals on the opposite pressurized side of the lock piston and external extension of the lock mechanism, any effect of fluid pressure acting on such external extension of the lock mechanism is substantially negated. Accordingly, the effective area of the lock piston acted upon by system pressure to release the lock mechanism will remain substantially constant both before and after system pressure is admitted to the extend side of the actuator, whereby the lock is effectively locked open and there is always substantially full flow to the extend side of the actuator despite fluctuations in the extend pressure.
摘要翻译： 流体压力致动器包括用于将致动器锁定在一个端部位置中的运动的锁定机构，以及可与锁定机构的外部延伸部接合以便释放其的外部锁定释放杆。 当锁定释放杆施加系统压力以释放锁定机构时，锁定释放杆可通过锁定活塞接合。 在锁定活塞处于解锁方向的运动期间，并且在锁定机构脱离之后，系统压力通过锁定活塞移动到致动器的延伸侧和锁定活塞的相对端。 通过在锁定活塞的相对的加压侧和锁定机构的外部延伸部上使用基本相同尺寸的密封件，基本上否定了作用在锁定机构的这种外部延伸部上的流体压力的任何影响。 因此，在系统压力进入致动器的延伸侧之前和之后，由系统压力起作用以释放锁定机构的锁定活塞的有效面积将保持基本上恒定，从而锁定被有效地锁定打开并且总是 基本上完全流向致动器的延伸侧，尽管延伸压力的波动。
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公开(公告)号：US09494252B2
公开(公告)日：2016-11-15
申请号：US14125033
申请日：2011-06-10
申请人： Klaus Biester , Norbert Lenz
发明人： Klaus Biester , Norbert Lenz
CPC分类号： F16K37/0041 , E21B33/062 , F15B15/264 , F15B15/2861 , F16K31/042 , Y10T137/8225
摘要： A locking device is used for locking at least a piston associated with an operating element of a valve, a choke, a blowout preventer or some other unit used in the field of oil/natural gas drilling and/or oil/natural gas production. The locking device comprises a sleeve, which is axially displaceable relative to the piston and which is threadedly engaged with a rotatably supported rod for displacement in an axial direction. The rod is drivingly connected to a motor. In order to be able to determine, by means of simple structural measures, the position of the piston for each of its positions in a sufficiently precise and reproducible manner, the locking device is provided with a position sensor, which extends from a fixed point through a longitudinal bore of the lock rod up to the hydraulic piston and by means of which a distance between the piston and the fixed point can be detected.
摘要翻译： 锁定装置用于至少锁定与在油/天然气钻井和/或石油/天然气生产领域中使用的阀，扼流器，防喷器或其它单元的操作元件相关联的活塞。 锁定装置包括套筒，该套筒可相对于活塞轴向移动，并且与可旋转地支撑的杆螺纹接合，用于沿轴向移位。 杆被驱动地连接到电动机。 为了能够通过简单的结构措施，以足够精确和可再现的方式确定活塞对于其每个位置的位置，锁定装置设置有位置传感器，其从固定点延伸到 锁定杆的纵向孔直到液压活塞，借助于此可以检测活塞和固定点之间的距离。
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公开(公告)号：US09440826B2
公开(公告)日：2016-09-13
申请号：US14381317
申请日：2013-02-28
发明人： Thomas Prisk
CPC分类号： B66F3/30 , F15B15/261 , F15B15/262 , F15B15/264
摘要： The invention relates to an extension device, lifting device or jack that can be locked in a raised configuration and used to safely support a raised load. An extension device according to the invention comprises a housing having a closed first end and an open second end, a support member inside the housing projecting from the first end thereof, a piston slideably mounted in the housing around the support member, means for extending the piston out of the second end of the housing, means for retracting the piston into the housing, and a locking mechanism for releasably locking the piston to the support member, wherein the locking mechanism comprises one or more locking members mounted on the support member operable to be selectively moved in and out of locking engagement with the piston.
摘要翻译： 本发明涉及一种可以被锁定在凸起构型中并用于安全地支撑凸起载荷的延伸装置，提升装置或千斤顶。 根据本发明的延伸装置包括具有闭合的第一端和敞开的第二端的壳体，在壳体内部的从其第一端突出的支撑构件，可滑动地安装在壳体中围绕支撑构件的活塞， 活塞离开壳体的第二端，用于将活塞缩回到壳体中的装置，以及用于将活塞可释放地锁定到支撑构件的锁定机构，其中锁定机构包括安装在支撑构件上的一个或多个锁定构件， 选择性地移动进入和离开与活塞锁定接合。
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公开(公告)号：US20150184497A1
公开(公告)日：2015-07-02
申请号：US14145613
申请日：2013-12-31
发明人： Ross Whitby
CPC分类号： F15B15/1466 , E21B33/062 , E21B33/063 , E21B34/16 , F15B15/261 , F15B15/264 , F15B21/065 , F15B2015/268
摘要： A system, including a magnetorheological (MR) fluid locking system, including a housing, a piston disposed in the housing, wherein the piston is configured to move axially within the housing, an MR fluid disposed in the housing, an MR fluid pump fluidly coupled to the housing, wherein the MR fluid pump is configured to pump the MR fluid into the housing, and an electromagnet configured to magnetize the MR fluid to control axial movement of the piston.
摘要翻译： 一种包括磁流变（MR）流体锁定系统的系统，包括壳体，设置在壳体中的活塞，其中活塞构造成在壳体内轴向移动，布置在壳体中的MR流体，流体耦合的MR流体泵 其中所述MR流体泵构造成将所述MR流体泵送到所述壳体中;以及电磁体，其配置成磁化MR流体以控制所述活塞的轴向运动。
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