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公开(公告)号：US20050001208A1
公开(公告)日：2005-01-06
申请号：US10833937
申请日：2004-04-28
申请人： Winston Lee
发明人： Winston Lee
CPC分类号： B66F3/08
摘要： The present invention features a hoist comprising a primary extension having a circular arrangement and that is helical in shape, or that is formed in the shape of a helix having several coils or laterals. The hoist further comprises a series of supports that comprise a pre-determined length and that dictates the height or extension distance to which the primary extension can extend. The supports are also comprised of a helical shape to allow the laterals of the primary extension to travel thereon once being formed together. Essentially, the primary extension is caused to extend and collapse by rotating the supports in the appropriate direction.
摘要翻译： 本发明的特征在于一种起重机，其包括具有圆形布置并且呈螺旋形的主要延伸部，或者形成为具有多个线圈或侧面的螺旋形状的起重机。 起重机还包括一系列支撑件，其包括预定长度并且指示主延伸部能够延伸的高度或延伸距离。 支撑件还包括螺旋形状，以便一旦形成在一起就允许主延伸件的侧面行进。 基本上，通过沿着适当的方向旋转支撑件，导致主要的延伸延伸和塌缩。
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公开(公告)号：US6053255A
公开(公告)日：2000-04-25
申请号：US103209
申请日：1998-06-23
申请人： Jack A. Crain
发明人： Jack A. Crain
摘要： Apparatus and method for lifting blowout preventers beneath the floor of a drilling rig are provided. More than one cable is used on the drums of winches, allowing the winches to be compact enough for use on a drilling rig floor while avoiding the requirement for larger cable that would be required to achieve the high safety factors needed. The cables or wire ropes on the winches are attached to a member from which a larger diameter, higher strength intermediate cable is also attached. The intermediate cable is then attached to known apparatus such as a cradle for lifting a blowout preventer stack.
摘要翻译： 提供了一种用于在钻机底部提升防喷器的装置和方法。 在绞车的滚筒上使用多根电缆，使得绞盘足够紧凑，可用于钻机平台，同时避免需要更大的电缆来实现所需的高安全系数。 绞车上的电缆或钢丝绳连接到一个构件上，较大直径，较高强度的中间缆索也从该构件上连接。 然后将中间电缆连接到诸如用于提升防喷器堆叠的支架的已知装置。
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公开(公告)号：US5415379A
公开(公告)日：1995-05-16
申请号：US33391
申请日：1993-03-19
申请人： Reed W. Hoyt , John F. Lanza
发明人： Reed W. Hoyt , John F. Lanza
摘要： A winch includes a cylinder containing a movable piston to which are respectively mounted a fixed and a movable pulley assembly around which a line to be pulled is entrained. The pulley assemblies are located within the working chamber and the line enters the cylinder through one end formed remote from the chamber and through a one way brake mounted to that remote end. The brake permits line to enter the cylinder as the working chamber is pressurized to move the piston and thereby the movable assembly towards the remote end. The one way brake prevents line from exiting the cylinder at this location. The line extends slidingly through the piston and may exit the cylinder at the opposite end thereof which is also equipped with a one way brake which prevents line from entering the cylinder but allows the line to exit the cylinder. End of stroke positions of the piston are sensed by means of Hall Effect Sensors to control pressurization and venting of the working chamber through a three way valve.
摘要翻译： 绞盘包括一个装有可移动活塞的气缸，它们分别安装有一个固定的和一个可动的皮带轮组件，一个被牵引的线被夹在其上。 滑轮组件位于工作室内，并且线路通过远离腔室形成的一端并通过安装到该远程端的单向制动器进入气缸。 当工作室被加压时，制动器允许管线进入气缸，以使活塞移动，从而将可移动组件移向远端。 单向制动器防止线路在该位置离开气缸。 该线滑动地延伸穿过活塞并且可以在其相对端处离开气缸，其另一端还配备有单向制动器，其防止线路进入气缸，但允许线路离开气缸。 通过霍尔效应传感器检测活塞的行程位置结束，以通过三通阀来控制加压和排气。
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公开(公告)号：US5232202A
公开(公告)日：1993-08-03
申请号：US758687
申请日：1991-09-12
申请人： Alan R. Watson
发明人： Alan R. Watson
摘要： A method of lifting storage tanks by using pressurized bags and support members. Lifting the tank allows for visual inspection under the tank for corrosion to prevent leakage of environmentally hazardous chemicals stored in the tank. The lifting bags are placed under the tank, inflated, and support timbers placed under the raised tank. The bags are then deflated allowing the tank to rest on the support timbers. The deflated bags are raised by placing support timbers under the bags. The bags are again pressurized further raising the tank. The steps are repeated until the tank is lifted to the desired height. Ground suction is broken by raising one side of the tank with the lifting bags, placing supports as far as possible under the tank rim and depressurizing the bags to rock the other side of the tank off the ground. A fulcrum method is also applied to use the partial weight of the tank as a leverage force to alternately raise opposite sides of the tank.
摘要翻译： 通过使用加压袋和支撑构件提升储罐的方法。 提起水箱允许在罐下进行目视检查以防腐蚀，以防止储存在罐中的环境危险化学品的泄漏。 将提升袋放置在罐下面，充气，并将木材放置在放置在升高的罐下面的木材上。 然后袋子放气，允许罐子搁置在支撑木材上。 通过在袋子下面放置支撑木材来提高放气袋。 袋子再次被加压，进一步升高水箱。 重复这些步骤，直到罐被提升到所需的高度。 通过用提升袋抬起箱体的一侧来将地面吸力打破，将支架尽可能地放置在罐体边缘处并对袋进行减压以将罐体的另一侧从地面上摇摆。 支点方法也适用于使用坦克的部分重量作为杠杆力来交替地提升坦克的相对侧面。
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公开(公告)号：US5074383A
公开(公告)日：1991-12-24
申请号：US576454
申请日：1990-09-18
申请人： Mark M. Raikhlin , Yakov V. Baryba
发明人： Mark M. Raikhlin , Yakov V. Baryba
CPC分类号： B66F13/005
摘要： A hoisting mechanism comprises a pole (1) with weight and build-up branches (2, 3) and carrying elements (4) in these branches (2, 3) and a mechanism (6) for moving the carrying elements (4) in the branches (2, 3) from one such branch to the other. The mechanism (6) includes a hydraulic cylinder (8) with two pins (12, 13), two pairs of pivotable stops (17, 18), a guide (30), and two pushers. Axes (19) of oscillation of the stops (17, 18) are positioned in their centers of gravity, whereas the guide (30) has the form of an oval cup (31) secured to a housing (7) of the mechanism (6), has a slot (33) in a bottom (32) and holes (37) in the side wall to receive the pushers.
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公开(公告)号：US4497591A
公开(公告)日：1985-02-05
申请号：US529358
申请日：1983-09-06
申请人： Don A. Gillis
发明人： Don A. Gillis
CPC分类号： E02B17/0809 , E02B17/06 , E02B17/0836 , E02B17/0854
摘要： A rack (16) extends along a support column (12) for a work platform (10) which is guided for up and down movement along the support column (12). A pair of vertically spaced apart pinion wheels (56) engage the rack (16). Each pinion wheel (56) is mounted on its own pinion wheel support (32, 34). A separate extensible-retractable hydraulic cylinder (64, 68) is interconnected between each pinion wheel support (32, 34) and a frame portion (30, 88, 90) of the work platform (10). Each pinion wheel support (32, 34) includes an extendable-retractable lock element (100) having an end portion which when the lock element (100) is extended is in locking engagement with two portions of the pinion wheel (56). In use, the lock element (100) associated with one of the pinion wheels (56) is extending into locking engagement with tooth portions of its pinion wheel (56), to in that manner prevent rotation of the pinion wheel (56) and hold it in position relative to the guide member (12). At the same time the hydraulic cylinder (64, 68) which is connected to the support (32 or 34) for the first pinion wheel (56) is extended or retracted to raise or lower the work platform (10). At the same time the lock element (100) that is associated with the second pinion wheel (56) is retracted into an unlocked position, allowing its pinion wheel (56) to rotate along the rack (16) carried by the support column (12). The second cylinder (64, 68) is moved to a starting point so that at the end of the stroke of the first cylinder (64, 68) the second lock element (100) can be advanced to lock its pinion (26) in position and the first lock element (100) can be retracted to free its pinion wheel (26) for rotation along the rack (16), and the second cylinder (64, 68) can be operated to advance the work platform (10) and the first cylinder (64, 68) can be operated to return it to a start position.
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公开(公告)号：US4438902A
公开(公告)日：1984-03-27
申请号：US382365
申请日：1981-11-02
申请人： John P. Latimer
发明人： John P. Latimer
摘要： A system for supporting a long, heavy dredge pipe string from a moving surface vessel, with a minimum of stress being applied to the pipe. The system comprises a gimbaled platform, supported over a central well through a vessel by two horizontal axes perpendicular to each other. A carriage is supported from the platform on hydraulic piston rods. Pipe string support plates are movably secured to facing surfaces on the carriage and platform, arranged about central openings, to permit close-coupling of the two sets of support plates when transferring the pipe string. There is also provided a pair of lateral support members for the pipe string at the bottom of the well.
摘要翻译： 一种用于从移动表面容器支撑长而重的疏浚管柱的系统，其中至少一个应力施加到管道上。 该系统包括一个万向平台，通过两个彼此垂直的水平轴通过一个容器支撑在中心井上。 液压活塞杆上的平台支撑着一个滑架。 管柱支撑板可移动地固定在托架和平台上的面对表面上，布置在中心开口周围，以允许两组支撑板在传送管柱时紧密耦合。 还提供了一对在井的底部的管柱的侧向支撑构件。
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公开(公告)号：US4389140A
公开(公告)日：1983-06-21
申请号：US271110
申请日：1981-06-08
申请人： Cornelis Bordes
发明人： Cornelis Bordes
CPC分类号： E02B17/06
摘要： Locking device for a pile-shaped element for a body having buoyancy and provided with a longitudinal rack adapted to coact with a pinion connected to the body. A rack piece connected with and displaceable relative to the body is adapted to coact with the longitudinal rack for mutually locking body and pile-shaped element. The rack piece has the shape of an isosceles trapezium along the large base side of which are provided the teeth and which is enclosed between two guide blocks which are displaceable both jointly and separately in longitudinal direction of the rack and each being provided with a guide face coacting with an inclined trapezium side of the rack piece.
摘要翻译： 用于具有浮力的主体的桩状元件的锁定装置，并且设置有适于与连接到主体的小齿轮共同作用的纵向齿条。 与主体连接并可移位的齿条件适于与纵向齿条共同作用以相互锁定身体和绒头形元件。 齿条具有沿着其大基部侧面的等腰梯形的形状，并且被包围在两个引导块之间，两个引导块可以在齿条的纵向方向上共同且分开地移动，并且每个都具有引导面 与架子片的倾斜梯形面共同作用。
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公开(公告)号：US4358087A
公开(公告)日：1982-11-09
申请号：US204507
申请日：1980-11-06
申请人： Sylvan H. Sime
发明人： Sylvan H. Sime
摘要： A lifting jack has its upward and downward traveling distance controlled by means of a limit switch. The lifting jack has a base, an upright outer member rigidly connected to the base and an upright inner member movable coaxially within the outer member. An up stop and an adjustable down stop are rigidly attached to and move with the inner member. An adjustable mount is mounted in a fixed position on the outer member, and the limit switch is mounted in fixed position on the mount. A guide shoe assembly is pivotally connected to the mount and is oriented generally perpendicular to the direction of travel of the inner member. A stop engaging member at one end of the guide is positioned to engage the up stop and the down stop, and an arm guiding portion at the opposite end engages and guides an actuating arm of the limit switch. In operation, the guide (and therefore the actuating arm of the limit switch) is biased by garter springs which hold it in a normal position riding on the inner member which is generally perpendicular to the direction of travel of the inner member of the jack. When the stop engaging member engages the down stop, the stop engaging member moves downward and the arm guiding portion and the actuating arm move upward, thereby causing the limit switch to change from its normal state. Similarly, when the stop engaging member engages the up stop, it moves upward and the arm guiding portion and the arm move downward to cause a change in the state of the limit switch.
摘要翻译： 提升千斤顶具有通过限位开关控制的向上和向下行进距离。 提升千斤顶具有基部，刚性地连接到基部的直立外部构件和在外部构件内同轴移动的直立内部构件。 上止动器和可调节的止动件刚性地附接到内部构件并与内部构件一起移动。 可调节安装件安装在外部构件上的固定位置，并且限位开关安装在安装件上的固定位置。 导靴组件枢转地连接到安装件并且大致垂直于内部构件的行进方向定向。 位于导向件一端的止动接合构件定位成接合上止挡件和下止动件，并且在相对端的臂引导部分接合并引导限位开关的致动臂。 在操作中，引导件（因此限位开关的致动臂）被夹紧弹簧偏压，该弹簧将其保持在正常位置，该正常位置大体上垂直于插座的内部构件的行进方向垂直于内部构件。 当止动接合构件接合下停止时，停止接合构件向下移动，并且臂引导部分和致动臂向上移动，从而使限位开关从其正常状态改变。 类似地，当止动接合构件接合上止挡件时，其向上移动并且臂引导部分和臂向下移动以引起限位开关的状态的改变。
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公开(公告)号：US4333634A
公开(公告)日：1982-06-08
申请号：US138329
申请日：1980-04-08
申请人： Fred H. Malzacher
发明人： Fred H. Malzacher
CPC分类号： B66F1/025 , E21B15/003
摘要： A gripping assembly for moving drilling rigs on offshore drilling platforms in which the drilling rigs are supported on a plurality of skid bases. The gripper assembly rests on the skid bases and provides means for selectively gripping the skid base when a drilling rig is to be moved. The gripper assembly has a platform supported by end plates resting on the skid base flanges and is connected to the drilling rig by a hydraulic jack cylinder which moves or slides the drilling rig on the skid bases in a stepwise fashion. Traversing the platform is a cross-member pivotally supporting gripper arms for applying a clamping force to the skid base. The gripper assembly is clamped on the skid base by means of a clamping hydraulic cylinder to apply a force on flanges on the gripper arms, while the hydraulic jack cylinder is operated to push or pull the drilling rig a distance equal to the extension distance of the hydraulic jack cylinder stroke.
摘要翻译： 一种用于在海上钻井平台上移动钻机的夹持组件，其中钻机支撑在多个滑动基座上。 夹具组件放置在防滑基座上，并提供了当钻机要移动时选择性地夹紧滑动基座的装置。 夹持器组件具有由搁置在防滑基座凸缘上的端板支撑的平台，并且通过液压千斤顶缸连接到钻机，液压千斤顶缸以阶梯方式移动或滑动在钻机基座上的钻机。 横向平台是用于向滑动基座施加夹紧力的横向枢转支撑的夹持臂。 夹具组件通过夹紧液压缸被夹紧在防滑基座上，以在夹具臂上的法兰上施加力，而液压千斤顶缸被操作以推动或拉动钻机的距离等于 液压千斤顶气缸行程。
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