A hydraulic bolt lifting platform
A lifting platform and hydraulic technology, applied in the field of lifting systems, can solve problems such as bolt retraction and bolt extraction
Active Publication Date: 2019-08-23
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0006] In order to solve the problem of the bolt retraction or even the bolt pulling away from the legs caused by the pressure release of the bolt cylinder in the existing lifting system, the embodiment of the present invention provides a hydraulic bolt lifting platform
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0028] figure 1 It is a schematic structural diagram of a hydraulic bolt lifting platform provided by an embodiment of the present invention. Such as figure 1 As shown, the bolt lifting system includes a leg 1, an upper ring beam 2, a bolt 3, a bolt driving device 4, a lifting cylinder 5, a lower ring beam 6 and a platform main body 7, and the lower ring beam 6 is fixedly connected to the platform main body 7. The upper ring beam 2 and the lower ring beam 6 are arranged on the pile leg 1 at intervals, the upper ring beam 2 and the lower ring beam 6 are provided with a latch 3 and a latch driving device 4, and one end of the lifting cylinder 5 is connected to the upper ring beam 2 , and the other end is connected to the lower ring bea...
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The invention discloses a hydraulic plug pin lifting platform, and belongs to the field of lifting systems. Each plug pin driving device comprises a shell, a worm, a worm gear, a threaded sleeve, a screw and driving equipment, wherein each worm and the corresponding threaded sleeve are rotatably arranged on the corresponding shell, each worm gear is fixedly connected with the corresponding threaded sleeve and is in driving connection with the corresponding worm, each screw is connected with one end of a corresponding plug pin, therefore, each driving equipment can drive the corresponding wormto rotate, each worm can drive the corresponding worm gear to rotate, and each worm gear can drive the corresponding threaded sleeve to rotate. The threaded sleeves are in threaded connection with thescrews, limiting structures can limit rotation of the screws, therefore, when the threaded sleeves rotate, the screws can be driven to move in the axial direction, the plug pins can be controlled tobe inserted into or extracted out of plug pin holes, and the condition that the plug pins retract or even are extracted out of the plug pin holes due to the fact that pressure relief of plug pin oil cylinders occurs when the plug pin oil cylinders drive the plug pin to move is avoided.
Description
technical field [0001] The invention relates to a lifting system for a self-elevating ocean platform, in particular to a hydraulic bolt lifting platform. Background technique [0002] The jack-up offshore platform is a very widely used offshore drilling equipment. It mainly includes a platform body, legs, and a lifting system. The lifting system is used to realize the lifting of the platform body. [0003] The lifting system of the existing self-elevating offshore platform is usually a bolt lifting system, and the bolt lifting system mainly includes an upper ring beam, a lower ring beam, a lifting cylinder, a bolt and a bolt cylinder. The upper and lower ring beams surround the pile legs, the lower ring beam is fixedly connected to the main body of the platform, and the upper ring beam and the lower ring beam are connected by lifting cylinders. Both the upper ring beam and the lower ring beam are equipped with multiple bolts and bolt cylinders. The pins on the upper ring be...
Claims
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IPC IPC(8): E02B17/08
Inventor 田崇兴何鹏龚云王鑫磊
Owner WUHAN MARINE MACHINERY PLANT