Blowout preventer crane for ocean engineering

Abstract

The blowout preventer crane comprises a main support, a center shaft is rotationally installed at the top of the main support, rear moving wheels are rotationally installed on the two sides of the main support, and a front fixing frame is fixedly installed at the front end of the main support. The center shaft is fixedly sleeved with a main gear, the top end of the center shaft is fixedly sleeved with an upper supporting frame, an upper supporting cantilever is fixedly installed on the top of the upper supporting frame, a winding motor is fixedly installed on the top of the upper supporting cantilever, an output shaft of the winding motor is fixedly sleeved with a winding wheel, and the winding wheel is sleeved with a winding cable. The blowout preventer crane for ocean engineering is simple in structure and convenient to use, a blowout preventer can be conveniently positioned and lifted, the blowout preventer crane is convenient to move, and the whole device is prevented from rolling over in the process of lifting the blowout preventer through the supporting anti-skid structures on the two sides.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blowout preventer hoist technical field, concretely is a blowout preventer hoist for ocean engineering. BACKGROUND

[0002] When the semi-submersible platform is used for oil and gas exploitation, the underwater blowout preventer is a very critical blowout prevention and well control equipment. During the drilling process, the blowout preventer needs to be lowered to the underwater wellhead. Due to the large volume of the underwater blowout preventer, it is usually stored at a side position away from the moon pool during the overall arrangement of the platform. During transportation, the blowout preventer is first lifted by lifting equipment and then transported to one end of the moon pool. Then, the blowout preventer is transported to the designated position by a transport vehicle that spans above the moon pool. The blowout preventer is connected to the riser, and the lowering operation is completed by the drilling hoisting system.

[0003] However, during the lifting of the blowout preventer, due to the limitation of its own weight and the layout of the platform, a dedicated blowout preventer lifting device must be configured on the deck surface.

[0004] The patent with the application number CN202221139542.3 discloses a blowout preventer hoisting device, which includes a mounting plate, a displacement mechanism, a clamping mechanism, a power mechanism, a fixing mechanism, and a limiting mechanism. The displacement mechanism is arranged on both sides of the top of the mounting plate, and the clamping mechanism is arranged at the bottom of the displacement mechanism. The utility model discloses a first through groove, a steel rod, and a steel plate. When the steel rod displaces along the inner cavity of the first through groove, it can drive the clamping mechanism and the limiting mechanism to displace. By arranging a metal plate, a clamping block, a displacement block, a metal rod, and a spring, the metal plate can be clamped below the clamping interface of the blowout preventer to be clamped when it displaces. This solves the problem that the current blowout preventer lacks a convenient binding handle during disassembly and assembly, and lacks a dedicated clamping device during hoisting, which makes it inconvenient for workers to fix and support the blowout preventer to be disassembled.

[0005] However, the above-mentioned hoisting device is not convenient to move, and lacks support structures on both sides of the entire device during hoisting, which may cause the entire device to overturn.

[0006] Therefore, the present application provides a blowout preventer hoist for ocean engineering. Utility model content

[0007] The utility model aims at providing a blowout preventer hoist for ocean engineering to solve the problems raised in the background.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a blowout preventer hoist for ocean engineering, which includes a main support,

[0009] The top of the main support is rotatably installed with a central shaft, and the two sides of the main support are rotatably installed with rear moving wheels, and the front end of the main support is fixedly installed with a front fixed frame, the central shaft is fixedly sleeved with a main gear, and the top end of the central shaft is fixedly sleeved with an upper support frame, and the top of the upper support frame is fixedly installed with an upper support cantilever;

[0010] The top of the upper support cantilever is fixedly installed with a winding motor, the output shaft of the winding motor is fixedly sleeved with a winding wheel, the winding wheel is sleeved with a winding cable, the bottom end of the winding cable is fixedly installed with a mounting frame, and the bottom of the mounting frame is fixedly installed with a positioning box.

[0011] The two sides of the positioning box are both provided with mounting holes, and the positioning box is fixedly installed with a positioning motor, two sliding rods are fixedly installed in the two mounting holes, two connecting frames are slidably sleeved on the two sliding rods, the bottom end of any one connecting frame is fixedly installed with a clamping arm, and a roller is rotatably installed on any one connecting frame, a worm is fixedly sleeved on the output shaft of the positioning motor and located in the positioning box, positioning screws are rotatably installed on the inner walls of the two sides of the positioning box, two movable plates are threadedly sleeved on the two positioning screws, and a same worm wheel is fixedly sleeved between the two positioning screws, two extrusion blocks matched with the roller are fixedly installed on the side of each movable plate away from the other, and the worm wheel is engaged with the worm.

[0012] The two sides of the front fixed frame are rotatably installed with two electric telescopic rods, the output shaft of any one electric telescopic rod is hingedly installed with a side support arm, and the bottom end of any one side support arm is hingedly installed with an anti-skid support pad.

[0013] Preferably, a reinforcing support arm is fixedly installed between the upper support cantilever and the upper support frame.

[0014] The above technical solution increases the structural strength between the upper support cantilever and the upper support frame through the reinforcing support arm.

[0015] Preferably, an adjusting motor is fixedly installed on the main support, and a secondary gear engaged with the main gear is fixedly sleeved on the output shaft of the adjusting motor.

[0016] The above technical solution drives the rotation of the secondary gear by starting the adjusting motor, drives the rotation of the main gear by the secondary gear, drives the rotation of the central shaft and the upper support frame, and drives the rotation of the positioning box, so as to adjust the lifting direction.

[0017] Preferably, the screw directions of the two positioning screws are oppositely arranged.

[0018] The above technical solution can make the moving directions of the two movable plates opposite.

[0019] Preferably, the positioning box is fixedly provided with sliding rails, two sliding blocks are slidingly arranged on the sliding rails, and the two sliding blocks are fixedly connected with the corresponding movable plates respectively.

[0020] By the sliding rails and the sliding blocks, the movable plates are facilitated to move.

[0021] Preferably, the same reset spring is fixedly sleeved between the two connecting frames on the same side.

[0022] By the reset spring, the connecting frames are facilitated to reset.

[0023] Compared with the prior art, the device has the advantages that: by the front moving wheel and the two rear moving wheels, the whole device is facilitated to move; when the device is moved to a suitable lifting position, the four electric telescopic rods are started first to drive the four side supporting arms and the four anti-skid supporting pads to rotate downward, so that the four anti-skid supporting pads are in contact with the ground, and the whole device is prevented from skidding; the four side supporting arms can be used to tilt and support the two sides of the device, so that the whole device is prevented from rolling over; then, the four clamping arms are aligned with the blowout preventer, and then the positioning motor is started to drive the worm to rotate, so that the worm drives the worm gear to rotate, the two positioning lead screws are driven to move leftward and rightward, the two movable plates are driven to move leftward and rightward, the extrusion blocks on the movable plates extrude the corresponding rollers through the inclined surfaces of the extrusion blocks, the two connecting frames on the same side are driven to move toward each other, the two clamping arms on the same side are driven to move toward each other, and the blowout preventer is clamped and fixed; then, the winding motor is started to drive the winding wheel to rotate, the winding wheel winds the winding cable, the mounting frame and the positioning box are lifted upward, the blowout preventer is lifted upward, the adjusting motor is started to drive the secondary gear to rotate, the secondary gear drives the primary gear to rotate, the central shaft and the upper supporting frame are driven to rotate, the positioning box is driven to rotate, and the lifting direction is adjusted. The blowout preventer lifting device for offshore engineering is simple in structure and convenient to use, the blowout preventer is facilitated to be positioned and lifted, the device is facilitated to move, and the two side supporting anti-skid structures prevent the whole device from rolling over during lifting of the blowout preventer. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of the device;

[0025] Figure 2 It is a side view of the device;

[0026] Figure 3 It is a structure schematic view of part A of the device;

[0027] Figure 4The utility model discloses an internal structure perspective view about positioning box.

[0028] In the drawing: 1, main support; 2, rear moving wheel; 3, upper support frame; 4, winding motor; 5, winding wheel; 6, upper support cantilever; 7, reinforcing support arm; 8, mounting frame; 9, positioning box; 10, side support arm; 11, front end moving wheel; 12, positioning motor; 13, worm; 14, worm wheel; 15, movable plate; 16, extruding block; 17, sliding rod; 18, reset spring; 19, clamping arm; 20, connecting frame; 21, mounting hole; 22, front fixed frame; 23, adjusting motor; 24, electric telescopic rod; 25, antiskid support pad; 26, main gear; 27, auxiliary gear; 28, roller; 29, positioning screw rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0030] Please refer to Figures 1-4The utility model provides a technical scheme: a blowout preventer hoist for ocean engineering, including main support 1, the top rotation of main support 1 is installed with central shaft and the both sides of main support 1 are rotationally installed with rear moving wheel 2 and the front end of main support 1 is fixedly installed with front fixed frame 22, and the top of central shaft is fixedly sleeved with main gear 26 and the top of central shaft is fixedly sleeved with upper support frame 3, and the top of upper support frame 3 is fixedly installed with upper support cantilever 6, and the top of upper support cantilever 6 is fixedly installed with winding motor 4, and the output shaft of winding motor 4 is fixedly sleeved with winding wheel 5, and winding wheel 5 is sleeved with winding cable, and the bottom of winding cable is fixedly installed with mounting bracket 8, and the bottom of mounting bracket 8 is fixedly installed with positioning box 9, and the both sides of positioning box 9 are all set with mounting hole 21 and positioning motor 12 is fixedly installed on positioning box 9, and two mounting holes 21 are all fixedly installed with slide rod 17, and two slide rods 17 are all slidably sleeved with two connecting frames 20, and the bottom of arbitrary connecting frame 20 is fixedly installed with clamping arm 19 and arbitrary connecting frame 20 is rotationally installed with roller 28, and the output shaft of positioning motor 12 is fixedly sleeved with worm 13 located in positioning box 9, and positioning screw rod 29 is rotationally installed on the inner wall of the both sides of positioning box 9, and two positioning screw rods 29 are all threadedly sleeved with movable plate 15 and the same worm wheel 14 is fixedly sleeved between two positioning screw rods 29, and the side of two movable plates 15 away from each other is all fixedly installed with two extrusion blocks 16 matched with roller 28, and worm wheel 14 engages with worm 13, and the thread direction of two positioning screw rods 29 is reversely arranged, and slide rail is fixedly installed in positioning box 9, and two sliding blocks are slidably installed on slide rail, and two sliding blocks are fixedly connected with corresponding movable plate 15, and the same reset spring 18 is fixedly sleeved between two connecting frames 20 located on the same side, through the above structure arrangement, four clamping arms 19 are aligned blowout preventer first, then the rotation of worm 13 is driven by starting positioning motor 12, the rotation of worm wheel 14 is driven by worm 13, the rotation of two positioning screw rods 29 is driven, the left and right separation movement of two movable plates 15 is driven, the extrusion block 16 on movable plate 15 extrudes corresponding roller 28 through the inclined surface of itself in the process of moving, the opposite movement of two connecting frames 20 on the same side is driven, the opposite movement of two clamping arms 19 on the same side is driven, blowout preventer can be clamped and fixed, then the rotation of winding wheel 5 is driven by starting winding motor 4, winding cable can be wound by winding wheel 5, mounting bracket 8 and positioning box 9 can be lifted upward, blowout preventer can be lifted upward.

[0031] In combination Figures 1-4As shown, the two sides of the front fixed frame 22 are rotatably installed with two electric telescopic rods 24, and the output shaft of any one electric telescopic rod 24 is hingedly installed with a side support arm 10, and the bottom end of any one side support arm 10 is hingedly installed with an anti-skid support pad 25. Through the above structural arrangement, the entire device is moved by the front end moving wheel 11 and the two rear moving wheels 2. When the device is moved to the appropriate lifting position, first, the four electric telescopic rods 24 are started to drive the downward rotation of the four side support arms 10 and the four anti-skid support pads 25, so that the four anti-skid support pads 25 are in contact with the ground, that is, the entire device can be prevented from sliding and braking. The four side support arms 10 can be used to tilt and support the two sides of the device to prevent the entire device from rolling over.

[0032] In combination Figures 1-4 As shown, the upper support cantilever 6 and the upper support frame 3 are fixedly installed with a reinforcing support arm 7. Through the above structural arrangement, the reinforcing support arm 7 increases the structural strength between the upper support cantilever 6 and the upper support frame 3.

[0033] In combination Figures 1-4 As shown, the main support 1 is fixedly installed with an adjusting motor 23, and the output shaft of the adjusting motor 23 is fixedly sleeved with a pinion 27 engaged with a main gear 26. Through the above structural arrangement, the rotation of the pinion 27 is driven by starting the adjusting motor 23, and the rotation of the main gear 26 is driven by the pinion 27, that is, the rotation of the center shaft and the upper support frame 3 is driven, that is, the rotation of the positioning box 9 is driven, that is, the lifting direction can be adjusted.

[0034] The utility model discloses a working principle: through the front end moving wheel 11 with two rear moving wheels 2 convenient whole device's movement, when moving the device to the appropriate hoisting position, first through the start four electric telescopic link 24 drive four side support arm 10 with four antiskid support pad 25 downward rotation, make four antiskid support pad 25 all with ground resistance, can play the function to whole device's antiskid brake, through four side support arm 10 can be inclined to support the both sides of the device, prevent whole device's side slip, then first four clamping arm 19 aim at the blowout preventer, then through the start positioning motor 12 drive the rotation of worm 13, and worm 13 drive the rotation of worm wheel 14, can drive the rotation of two positioning lead screws 29, can drive the left and right separation of two movable plates 15, extruding block 16 on movable plate 15 extrudes corresponding gyro wheel 28 through the inclined surface of itself in the process of moving, can drive the opposite movement of two connecting frames 20 on the same side, can drive the opposite movement of two clamping arms 19 on the same side, can clamp and fix the blowout preventer, then through the start winding motor 4 drive the rotation of winding wheel 5, and winding wheel 5 can winding cable winding, can hoist and lift mounting frame 8 and positioning box 9 upwards, can hoist and lift the blowout preventer upwards, through the start adjusting motor 23 drive the rotation of sub gear 27, and sub gear 27 drive the rotation of main gear 26, can drive the rotation of central shaft and upper support frame 3, can drive the rotation of positioning box 9, can adjust the hoisting direction. The utility model discloses simple structure, convenient to use, the blowout preventer hoist for ocean engineering of one kind, convenient to the positioning hoisting of blowout preventer, convenient to move and prevent whole device from producing side slip in the process of hoisting blowout preventer through both sides support antiskid structure.

[0035] The contents not described in the specification are the prior art known to the person skilled in the art, although the embodiments of the utility model have been shown and described, it can be understood by the person skilled in the art that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A blowout preventer crane for marine engineering, comprising a main support (1), characterized in that: The main support (1) is rotatably mounted with a central shaft at its top and with rear moving wheels (2) rotatably mounted on both sides of the main support (1). A front fixed frame (22) is fixedly mounted at the front end of the main support (1). A main gear (26) is fixedly sleeved on the central shaft and an upper support frame (3) is fixedly sleeved at the top of the central shaft. An upper support cantilever (6) is fixedly mounted on the top of the upper support frame (3). A winding motor (4) is fixedly installed on the top of the upper support cantilever (6). A winding wheel (5) is fixedly sleeved on the output shaft of the winding motor (4). A winding cable is sleeved on the winding wheel (5). A mounting frame (8) is fixedly installed at the bottom of the winding cable. A positioning box (9) is fixedly installed at the bottom of the mounting frame (8). The positioning box (9) has mounting holes (21) on both sides and a positioning motor (12) is fixedly mounted on the positioning box (9). Slide rods (17) are fixedly mounted in both mounting holes (21). Two connecting frames (20) are slidably sleeved on each of the two slide rods (17). A clamping arm (19) is fixedly mounted at the bottom end of any connecting frame (20), and a roller (28) is rotatably mounted on any connecting frame (20). The output shaft of the positioning motor (12) is fixedly mounted on... A worm (13) is fixedly connected inside the positioning box (9). Positioning screws (29) are rotatably installed on both sides of the inner wall of the positioning box (9). Movable plates (15) are threaded onto both positioning screws (29), and the same worm wheel (14) is fixedly connected between the two positioning screws (29). Two extrusion blocks (16) adapted to rollers (28) are fixedly installed on the side of the two movable plates (15) that are far apart from each other. The worm wheel (14) meshes with the worm (13). Two electric telescopic rods (24) are rotatably mounted on both sides of the front fixed frame (22). A side support arm (10) is hinged to the output shaft of any one of the electric telescopic rods (24), and an anti-slip support pad (25) is hinged to the bottom end of any one of the side support arms (10).

2. The blowout preventer crane for marine engineering according to claim 1, characterized in that: A reinforcing support arm (7) is fixedly installed between the upper support cantilever (6) and the upper support frame (3).

3. The blowout preventer crane for marine engineering according to claim 1, characterized in that: An adjustment motor (23) is fixedly installed on the main support (1), and a secondary gear (27) that meshes with the main gear (26) is fixedly sleeved on the output shaft of the adjustment motor (23).

4. A blowout preventer crane for marine engineering according to claim 1, characterized in that: The threads of the two positioning screws (29) are set in opposite directions.

5. A blowout preventer crane for marine engineering according to claim 1, characterized in that: The positioning box (9) is fixedly installed with a slide rail, and two sliders are slidably installed on the slide rail. The two sliders are respectively fixedly connected to the corresponding movable plate (15).

6. A blowout preventer crane for marine engineering according to claim 1, characterized in that: The same return spring (18) is fixedly sleeved between two connecting brackets (20) located on the same side.

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