摘要:
The present invention relates to a motion compensation device (1) for compensating a load carried by a gripper (65) attached to a manipulator (53) on a vessel (3) for water motion. The motion compensation device (1) comprises a carrier frame (2) supported by at least three vertical cylinder- piston units (4,5,6) on the vessel, a sensor system (8), a control system (9), a mechanical constraining system (18, 19, 20) limiting movement of the carrier fame (2) to x-axis rotation, y-axis rotation and optionally z-axis translation; and a heave compensator (60) arranged between the gripper (65) and the manipulator (53).
摘要:
Die vorliegende Erfindung zeigt eine Kransteuerung für einen Kran, welcher ein Hubwerk zum Heben einer an einem Seil hängenden Last aufweist, mit einer aktiven Seegangskompensation, welche durch eine Ansteuerung des Hubwerks die Bewegung des Seilaufhängepunkts und/oder eines Lastabsetzpunktes aufgrund des Seegangs zumindest teilweise ausgleicht, wobei die Seegangskompensation bei der Berechung der Ansteuerung des Hubwerkes mindestens eine Beschrän kung des Hubwerks berücksichtigt .
摘要:
An apparatus, program product, and related methods for gravity stabilizing a suspended load are provided. The apparatus includes an center of gravity stabilized automated adjusting load bar in communication with a mobile cart which allows an operator to enable automated stabilization of a load. The adjusting load bar includes redundant first and second control and drive systems. A third control system can both monitor sensed data and the movement commands of first and second control systems, and can monitor the resulting physical movements. If a movement command and the resulting movement does not match or if there is an out of tolerance mismatch between movement commands of the first and the second control systems, the third control system can automatically detect this condition and shift into an emergency stop condition.
摘要:
A system includes a turbine lift (12). The turbine lift (12) includes a mounting base (26) configured to mount to a non-stable structure. The turbine lift (12) also includes an arm (28) coupled to the mounting base (26). The turbine lift further includes a stabilizing head (30) coupled to the arm (28), wherein the stabilizing head (30) is configured to connect with a turbine engine (13), and the stabilizing head (30) is configured to stabilize the turbine engine (13) while moving the turbine engine (13).
摘要:
The invention relates to a device for lifting and moving an object (4), that comprises a crane (1), said crane including a boom (1b) equipped with a so-called lifting cable (1a) having at the free end thereof a link (8, 8a-8b-8c) capable of holding at the lower end thereof an object suspended thereto via a gripping device (5,5a-5b), wherein the lifting cable (1a) is coupled to at least one traction cable (9, 9a-9b) having an end connected to at least one traction winch (10, 10a-10b), characterised in that it comprises: a powered bearing (30) connected to a connection ring or hook (1d) at the lower end of said lifting cable, said link being connected at the upper end thereof to a lower mobile portion (30b) of the powered bearing, said powered bearing (30) thus being capable of controlling the powered rotation of said link and of said object in rotation about itself when said lower portion (30b) is actuated in powered rotation; and said powered bearing (30) cooperates with a reaction arm (32) that allows the transfer of the torsion stress generated by said powered bearing upon rotation, at a fixed upper portion (30a) of said powered bearing, connected to said connection ring or hook.
摘要:
A method according to the invention of controlling a rotation speed of a motor of a speed-controllable hoist drive comprises receiving a lift speed instruction (ώ'm )\ forming a final speed instruction (ώm ) by using initial information con- taining the lift speed instruction (ώ'm ); and using the final speed instruction (ώm ) as a speed instruction for the rotation speed of the motor of the speed- controllable hoist drive. The method further comprises monitoring a position derivative of an actual value of a cable force (dF/dz). The initial information for forming the final speed instruction (ώm ) comprises the position derivative of the actual value of the cable force (dF/dz).
摘要:
Elongated, bulky products are transported by means of a cable-guided lift body (1) connected to the load (15) by way of at least one mobile, controllable winch (13) via a hauling cable (18) and via a supporting cable (4; 7) and a rotatable load bearing unit (12). The bulky load (15) clamped in the load bearing unit (12) at the center of gravity can freely rotate in the wind during transport and maintain the horizontal position by means of a tilting joint (9) just above the center of gravity of the load bearing unit (12). The inside surfaces of the load bearing unit (12) are adjusted to the shape of the load (15) and fix the same. The load bearing unit (12) is connected to the lift body (1) via a rotatable joint (8) and hauling cables (18), preferably having three mobile, controllable winches (13), and via a further rotatable joint (8) and a supporting cable (7; 4). The method and the arrangement for transporting elongated, bulky products, utilizing a cable-guided lift body is suitable particularly for the transport of the wings of wind power systems across far distances, even with non-existent infrastructure, or such that is not suitable for conventional transport methods.
摘要:
An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (20) which can be suspended from a travelling block (6) or a top drive characterised in that said apparatus further comprises at least one bail (2) which can support a primary elevator (10) and which can, in use, be raised and lowered by said weight compensating device (20) to enable a tubular (32) to be raised and lowered with respect to a string of tubulars and which can move to a load bearing position in which it can raise and lower said string of tubulars. An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (20) which can be suspended from a travelling block (6) or a top drive characterised in that said apparatus further comprises a member (42) which can support a primary elevator (10) and which can, in use, be raised and lowered by said weight compensating device (20) to enable a tubular (32) to be raised and lowered with respect to a string of tubulars and which can move to a load bearing position in which it can raise and lower said string of tubulars wherein said weight compensating device (20) is arranged between said travelling block (6) or said top drive and said primary elevator (10). This invention also provides a method, a device and an elevator.