Floating connecting device of on-board drilling machine

Abstract

The invention relates to the technical field of water drilling machine auxiliary equipment, and provides a floating connecting device of an on-board drilling machine, which is used for connecting the drilling machine to a floating ship deck in a floating manner and comprises an adjusting frame, a bracket and a telescopic adjusting unit, a sliding seat capable of moving up and down is connected to the adjusting frame in a sliding manner; one end of the bracket is hinged with the sliding seat; the bearing seat is used for bearing the drilling machine and can drive the drilling machine to lift under the action of the sliding seat; the number of the telescopic adjusting units is two, the two telescopic adjusting units are symmetrically supported below the two sides of a middle shaft of the bracket, the lower ends of the telescopic adjusting units are hinged to a floating ship deck, the upper ends of the telescopic adjusting units are hinged to the bottom of the bracket and are in sliding fit with the bracket, and the upper ends of the telescopic adjusting units can slide towards the side close to or away from the adjusting frame relative to the bracket. The height and the inclination angle of the bracket are adjusted. According to the technical scheme, the problem that relative positions of the drilling machine and the submarine pipeline deviate due to lifting along with the sea surface during construction of the offshore drilling machine in related technologies is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of auxiliary equipment for offshore drilling rigs, and more particularly, to a floating connection device for a drilling rig on a ship. Background Art

[0002] In offshore construction, the installation methods of drilling rigs vary according to different seabed depths. In shallow sea areas (generally with a water depth of less than 1500 meters), a drilling platform is often constructed using steel structures and concrete to install the drilling rig. In deep sea areas (generally with a water depth of more than 1500 meters), considering factors such as cost and operability, a floating drilling platform is mostly used, that is, the drilling rig is installed on a ship. However, due to factors such as the surging of seawater and the ebb and flow of tides, the drilling rig installed on the ship will experience heaving, which easily leads to a deviation in the relative position between the drilling rig and the seabed pipeline, thereby reducing the drilling effect of the seabed pipeline and affecting the construction quality and efficiency. Therefore, in order to ensure the accuracy and stability of the seabed pipeline drilling in deep sea areas, it is necessary to improve and optimize the existing technology. Summary of the Invention

[0003] To overcome the above defects, embodiments of the present disclosure provide a floating connection device for a drilling rig on a ship, which solves the problem of deviation in the relative position between the drilling rig and the seabed pipeline caused by the rise and fall of the sea surface during the construction of an offshore drilling rig in related technologies.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a floating connection device for a drilling rig on a ship, which is used to floatingly connect the drilling rig to the floating ship deck, and includes: An adjusting frame, on which a sliding seat capable of lifting and moving is slidably connected; A bracket, one end of which is hinged to the sliding seat; it is used to carry the drilling rig and can drive the drilling rig to lift and move under the action of the sliding seat; Two telescopic adjusting units are provided, and the two telescopic adjusting units are symmetrically supported on both sides below the central axis of the bracket. The lower end of the telescopic adjusting unit is hinged to the floating ship deck, and the upper end is hinged to the bottom of the bracket and is slidably matched with the bracket. The upper end of the telescopic adjusting unit can slide relative to the bracket towards the side close to or away from the adjusting frame to adjust the height and inclination angle of the bracket.

[0005] For example, in a floating connection device for a drilling rig on a ship provided by at least one embodiment of the present disclosure, the adjusting frame includes two guide rails extending in the up and down direction and a cross beam connected to the upper ends of the two guide rails; the guide rail includes a middle beam and side retaining strips symmetrically arranged on both sides of the middle beam, and the side retaining strip has an inclined surface arranged at an obtuse angle with the plate surface of the middle beam; The sliding seat is detachably connected to a wheel seat arranged adjacent to the inclined surface, and the wheel seat is rotatably connected to a roller that rolls with the inclined surface. The same wheel seat is rotatably connected to a plurality of rollers arranged at intervals up and down, and the end of the roller away from the wheel seat has a conical wheel head that rolls with the plate surface of the center beam.

[0006] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, each of the side guard bars has two inclined surfaces, and the two inclined surfaces of the same side guard bar are arranged in a one-to-one correspondence with the two side plate surfaces of the center beam.

[0007] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, the adjustment frame is further provided with a debris removal component, and the debris removal component includes: A debris removal plate is hinged on the wheel seat through a horizontally extending hinge shaft, the hinge shaft is arranged parallel to the inclined surface, the upper edge of the debris removal plate has a sharp edge, the debris removal plate can be vertically swung until the sharp edge contacts the inclined surface, and moved up and down under the drive of the sliding seat to remove impurities on the inclined surface, and a locking groove is provided on the side of the debris removal plate away from the inclined surface; A lock seat, arranged on the wheel seat, having a guide rod portion horizontally extending toward a side close to the debris removal plate; The locking block is slidably sleeved on the outer periphery of the guide rod portion, and the locking block has a locking chuck on one side close to the debris removal plate: Wherein, the locking clamp head can be locked into the locking groove under the drive of the locking block, so that the sharp edge is close to the inclined surface and is in a conflicting state; The locking chuck can be moved out of the locking groove under the drive of the locking block, so that the sharp edge is away from the inclined surface and is in a separated state.

[0008] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, the adjustment frame further includes: A card block is slidably arranged on the locking block up and down and is located on a side of the locking block away from the debris removing plate. The lower part of the card block has a guide surface, and the guide surface extends obliquely from top to bottom toward a side away from the lock seat. The card block is configured to slide downward and then be clamped into a clamping gap between the locking block and the lock seat, so that the locking clamp head is clamped into the locking groove.

[0009] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, the adjustment frame further includes: A rotating shaft is rotatably disposed on the wheel seat, the rotating shaft extends in a horizontal direction and is parallel to the inclined plane, and the rotating shaft is connected to one of the rollers by means of a chain; The rotating wheel is arranged on the rotating shaft by means of a one-way rotating bearing. The rotating wheel has a locking protrusion protruding toward the outer circumference. The locking protrusion can rotate along with the rotating wheel in a circumferential direction and contact with the locking block to push the locking block close to the debris removing plate.

[0010] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, a horizontally extending limit portion is provided on the side of the clamping block, a swinging member located below the limit portion is hingedly connected to the clamping block, a stop portion is provided on a side of the swinging member close to the clamping block, an elastic member 1 is provided between the clamping block and the stop portion, and the elastic member 1 is used to elastically push the stop portion outward to make the swinging member swing upward and be arranged at an angle with the horizontal plane; A second rotating wheel is sleeved on the rotating shaft, and the second rotating wheel has an unlocking protrusion protruding toward the outer circumference, and the unlocking protrusion is used to press upward against the lower side plate surface of the swinging member to push the limiting part upward with the help of the swinging member, so that the clamping block moves away from the clamping gap.

[0011] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, the adjustment frame further includes: The second elastic member has one end acting on the end of the guide rod portion close to the debris removing plate and the other end acting on the locking block, and is configured to push the locking block away from the debris removing plate to enable the locking chuck to disengage from the locking groove.

[0012] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, the adjustment frame further includes: The elastic member three has one end acting on the clamping block and the other end acting on the locking block, and is configured to drive the clamping block to clamp into the clamping gap so that the locking clamp head is separated from the locking groove.

[0013] For example, in a floating connection device for a drilling rig on a ship provided in at least one embodiment of the present disclosure, the adjusting frame is provided with a lifting drive unit for driving the sliding seat to move up and down, and the lifting drive unit includes: An upper sprocket wheel is rotatably disposed on the crossbeam, wherein the upper sprocket wheel is connected to a rotation driver, and the rotation driver is disposed on the crossbeam; A lower sprocket wheel is rotatably disposed on the deck of the floating vessel; A transmission sprocket, rotatably disposed on the sliding seat; A transmission chain, one end of which is fixed on the crossbeam, and the other end of which is fixed on the deck of the floating ship. The transmission chain is sequentially wound around the bottom of the transmission sprocket, the top of the upper sprocket, the bottom of the lower sprocket, and the top of the transmission sprocket. The transmission chain can drive the transmission sprocket and the sliding seat to move up and down under the action of the upper sprocket.

[0014] The beneficial effects of the embodiments of the present disclosure are as follows: In the present disclosure, when the seawater surges or the tide rises and falls, causing the ship's hull to rise and sink, the floating connection device of the drilling rig on the ship starts to work. By driving the transmission sprocket to move with an existing rotation driver and driving the transmission sprocket to rotate with a transmission chain, the sliding seat is driven to move up and down in the vertical direction along the guide rail, adjusting the height of one end of the drilling rig to adapt to the change in seawater depth. At the same time, the telescopic adjustment unit makes telescopic movements as needed, changing the height and tilt angle of the bracket, and cooperating with the hinge structure of the adjustment frame to ensure the stability of the bracket, so that the drilling rig always maintains a relatively stable positional relationship with the center line of the subsea pipeline crossing. Thus, the problem of the position deviation of the drilling rig caused by seawater fluctuations is solved. In addition, with the help of sensors in the prior art, the state and change trend of the seawater can be monitored in real time, providing an accurate adjustment direction and idea for the operation of this floating connection device. The drilling effect of the subsea pipeline is improved, and the quality and efficiency of offshore construction are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description in the embodiments of the present disclosure. Obviously, the drawings in the following description are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present disclosure; Figure 2 It is Figure 1 a partial enlarged view of part A in the embodiment of Figure 3 It is Figure 1 a schematic diagram of the structure at the joint of the adjustment frame and the lifting drive unit in the embodiment of Figure 4 It is Figure 3 a partial enlarged view of part B in the embodiment of Figure 5 It is Figure 1 a schematic diagram of the structure at the sliding seat in the embodiment of Figure 6 It is Figure 5 a partial enlarged view of part C in the embodiment of Figure 7 It is Figure 1 a schematic diagram of the structure at the sliding seat from another angle in the embodiment of Figure 8 It is Figure 7 a partial enlarged view of part D in the embodiment of Figure 9 In the embodiment of Figure 1 the structural schematic diagram of the wheel seat; Figure 10 In the embodiment of Figure 9 the partial enlarged view of the position E; Figure 11 In the embodiment of Figure 1 the structural schematic diagram of the wheel seat from another angle; Figure 12 In the embodiment of Figure 11 the partial enlarged view of the position F; Figure 13 In the embodiment of Figure 1 the partial structural schematic diagram of a section of the guide rail; In the figure: 1. floating ship deck, 2. drilling rig, 3. bracket, 4. guide rail, 41. middle beam, 42. side retaining strip, 43. inclined plane, 5. adjusting frame, 50. sliding seat, 51. wheel seat, 511. through hole one, 512. through hole two, 52. roller, 521. conical wheel head, 53. impurity removal plate, 531. sharp edge, 532. locking groove, 54. locking seat, 541. guide rod part, 55. locking block, 551. locking chuck, 56. clamping block, 561. clamping gap, 562. limiting part, 57. rotating shaft, 571. rotating wheel one, 5711. locking protrusion, 572. rotating wheel two, 5721. unlocking protrusion, 573. chain one, 58. swinging part, 581. blocking part, 591. elastic part one, 592. elastic part two, 593. elastic part three, 6. telescopic adjustment unit, 7. lifting drive unit, 71. driving sprocket, 72. driving chain, 73. cross beam, 74. upper sprocket, 75. lower sprocket, 76. rotating driver. Detailed implementation manners

[0017] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present disclosure, rather than limiting the present disclosure.

[0018] For the sake of simplicity of the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, for the components with the same structure or function, only one of them is schematically shown, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0019] In this document, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", and "join" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0020] In this disclosure, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0021] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this disclosure.

[0022] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0023] As Figures 1 to 13 shown, it shows a floating connection device of an on - ship drill rig 2 in an embodiment of this disclosure. This device mainly consists of a bracket 3, a guide rail 4, an adjusting frame 5, a telescopic adjusting unit 6, and a lifting driving unit 7. Through the cooperation of each part, the adjustment of the position of the drill rig 2 is realized.

[0024] The bracket 3 is a component for carrying the drill rig 2. An installation interface adapted to the bottom of the drill rig 2 is provided on its surface, facilitating the fixation of the drill rig 2. Meanwhile, a hinged structure connected to the adjusting frame 5 is designed at the bottom of the bracket 3. For example, high-strength pin shafts are used for connection, and wear-resistant bushings are equipped to extend the service life. The guide rail 4 is vertically installed on the floating ship deck 1, generally made of channel steel or I-beam. Its length and quantity are arranged according to the size of the floating ship deck 1 and the moving range of the drill rig 2. The adjusting frame 5 mainly includes a sliding seat 50, and the sliding seat 50 is slidably arranged on the guide rail 4 in the vertical direction. The sliding seat 50 is hinged to the bracket 3 through a pin shaft, enabling the bracket 3 to swing around the pin shaft, thereby adjusting the tilt angle of the drill rig 2. The vertical placement of the guide rail 4 provides guidance for the up-and-down sliding of the sliding seat 50, facilitating the adjustment of the height of the bracket 3 and the drill rig 2.

[0025] One end of the telescopic adjustment unit 6 is swingably arranged on the floating ship deck 1 through a hinge seat, and the other end is slidably arranged on the bracket 3 in a sleeve manner. The sleeve is hinged to the telescopic adjustment unit 6, and a slide bar is provided on the bracket 3, and the sleeve is slidably arranged on the slide bar. The telescopic adjustment unit 6 usually adopts a hydraulic telescopic rod or an electric telescopic rod to provide sufficient telescopic force to adjust the height and tilt angle of the bracket 3. For example, in this example, a hydraulic telescopic rod is selected, and a corresponding hydraulic pump station and control valve will be equipped on the floating ship to control the telescopic length. At the same time, the number of telescopic adjustment units 6 is two, located below the bracket 3. The two telescopic adjustment units 6 are in an "eight" shape to support the bracket 3 and improve the stability of the support of the bracket 3. The lifting drive unit 7 is arranged on the floating ship deck 1 and mainly consists of a driving sprocket 71 rotatably arranged on the sliding seat 50 and a driving chain 72 wound around the driving sprocket 71. An equipment capable of providing rotational drive in the prior art is also installed on the floating ship deck 1 to drive the chain to reciprocate. The chain drives the sprocket to rotate, and the movement of the chain drives the sliding seat 50 to slide up and down.

[0026] During the actual working process, when the seawater surges or the tide rises and falls, causing the ship's hull to rise and sink, the floating connection device of the drilling rig 2 on the ship starts to work. The existing rotating drive 76 drives the transmission sprocket 71 to move, and the transmission chain 72 drives the transmission sprocket 71 to rotate, thereby driving the sliding seat 50 to move up and down in the vertical direction along the guide rail 4, adjusting the height of one end of the drilling rig 2 to adapt to the change in the seawater depth. At the same time, the telescopic adjustment unit 6 makes telescopic movements as needed, changing the height and inclination angle of the bracket 3, and cooperating with the hinge structure of the adjustment frame 5 to ensure the stability of the bracket 3, so that the drilling rig 2 always maintains a relatively stable positional relationship with the center line of the submarine pipeline crossing. Furthermore, the problem of the position deviation of the drilling rig 2 caused by seawater fluctuations is solved. In addition, the state and change trend of the seawater can be monitored in real time with the help of sensors in the existing technology, providing an accurate adjustment direction and idea for the work of this floating connection device. The drilling effect of the submarine pipeline is improved, and the quality and efficiency of offshore construction are guaranteed.

[0027] In some examples, the structure of the adjustment frame 5 of this floating connection device is refined; for example, as Figures 1 to 13 shown, the adjustment frame 5 includes a wheel seat 51, a roller 52, a cleaning plate 53, a lock seat 54, a locking block 55, a clamping block 56, and a cross beam 73; further, it also includes a rotating shaft 57, a first runner 571, a swinging member 58, a first elastic member 591, a second runner 572, a second elastic member 592, and a third elastic member 593; among them, the wheel seat 51 is detachably arranged on the sliding seat 50, facilitating the installation and connection between the sliding seat 50 and the guide rail 4. The cross-section of the middle beam 41 is overall in the shape of a "work" character. The middle beam 41 refers to the middle position of the "work" character, and the side retaining strips 42 refer to the upper and lower ends of the "work" character; the plane located between the two side retaining strips 42 on the middle beam 41 is the plate surface.

[0028] The wheel seat 51 is selectively and detachably mounted on the sliding seat 50 by bolts. The wheel seat 51 is provided with a first through hole 511 and a second through hole 512 with their through directions arranged at an angle. The number of the first through holes 511 and the second through holes 512 is several. The first through holes 511 and the second through holes 512 are both used for installing fastening bolts to fixedly connect the wheel seat 51 and the sliding seat 50. By arranging the angle, clamping forces in all directions exist between the wheel seat 51 and the sliding seat 50, improving the connection stability. A plurality of rollers 52 are distributed along the extending direction of the guide rail 4. With the cooperation of the rollers 52 and the inclined surface 43, the frictional resistance between the sliding seat 50 and the guide rail 4 is reduced, avoiding sliding jamming. At the same time, each roller 52 has a conical wheel head 521 that rolls in contact with the middle beam 41, and at the same time, the roller 52 rolls in contact with the inclined surface 43 of the side retaining strip 42. The rollers 52 are closely attached to the side retaining strip 42, and the conical wheel heads 521 are closely attached to the middle beam 41, providing multi-directional forces for the sliding connection between the sliding seat 50 and the guide rail 4, and improving the sliding stability between the sliding seat 50 and the guide rail 4. At the same time, with the "I"-shaped structure of the guide rail 4, and the four inclined surfaces 43 and the four wheel seats 51 distributed in a circumferential manner around the middle beam 41, the guide rail 4 is ensured to be evenly stressed around, reducing the bending deformation of the guide rail 4 due to long-term unilateral stress.

[0029] Since this floating connection device is applied in an open-air marine environment, during use, it is inevitable that some impurities will remain on the guide rail 4, such as marine organisms attaching, rust, etc. These impurities affect the rolling effect of the rollers 52 and the inclined surface 43. Therefore, when the sliding seat 50 slides along the guide rail 4, the residual debris on the guide rail 4 is cleaned by means of the debris removal plate 53 to ensure the smooth rolling of the rollers 52. Taking the sliding seat 50 sliding vertically upward as an example for explanation, at this time, the debris removal plate 53 is located above the upper end of the sliding seat 50. The debris removal plate 53 is swingably arranged on the wheel seat 51 through a pin shaft, and one end thereof has a sharp edge 531 for shoveling impurities. A locking groove 532 is provided on the side of the debris removal plate 53 away from the inclined surface 43. The locking seat 54 is fixed on the wheel seat 51, on the side of the debris removal plate 53 away from the inclined surface 43, and it has a guide rod portion 541 extending in the horizontal direction and pointing to the debris removal plate 53. The locking block 55 is slidably arranged through the guide rod portion 541 and abuts against the side of the debris removal plate 53 away from the inclined surface 43. A locking chuck 551 is provided on the locking block 55, which can be slidably engaged with or disengaged from the locking groove 532. When the locking chuck 551 is engaged with the locking groove 532, the sharp edge 531 approaches and abuts against the inclined surface 43 for removing the impurities on the inclined surface 43. When the locking chuck 551 leaves the locking groove 532, the sharp edge 531 moves away from the inclined surface 43 and is in a separated state from the inclined surface 43, reducing the friction between the sharp edge 531 and the inclined surface 43.

[0030] The clamping block 56 is slidably mounted on the locking block 55 by means of a vertically mounted straight rod. After sliding, the clamping block 56 can be clamped into or away from the clamping gap 561 between the locking block 55 and the lock seat 54. When the clamping block 56 is clamped into the clamping gap 561, the locking clamp head 551 remains clamped into the locking groove 532, ensuring that the debris removal plate 53 works stably; when the clamping block 56 leaves the clamping gap 561, the locking clamp head 551 can leave the locking groove 532, facilitating the free swing of the debris removal plate 53 and reducing the hard squeeze between the sharp edge 531 and the inclined surface 43.

[0031] The rotating shaft 57 is rotatably arranged on the wheel seat 51, and is connected to one of the rollers 52 by means of a chain 573. The rotating wheel 571 is arranged on the rotating shaft 57 by means of a one-way rotating bearing, and has a locking protrusion 5711. When the rotating shaft 57 drives the rotating wheel 571 to rotate, the rotating wheel 571 drives the locking protrusion 5711 to approach and finally contact the locking block 55. The locking protrusion 5711 pushes the locking block 55 to approach the dust removal plate 53, so that the locking clamp 551 is clamped into the locking groove 532. With the help of the locking chuck 551, the sharp edge 531 of the impurity removal plate 53 contacts the inclined surface 43, and as the sliding seat 50 slides upward, the impurities remaining on the inclined surface 43 are removed, ensuring good contact between the roller 52 and the inclined surface 43; at the same time, with the help of the locking chuck 551 and the locking groove 532, the impurity removal plate 53 is prevented from swinging away from the inclined surface 43 with the sharp edge 531, ensuring the stability of the operation of the sharp edge 531. When the locking chuck 551 is inserted into the locking groove 532, the locking protrusion 5711 is separated from the locking block 55.

[0032] When the locking block 55 slides toward the direction approaching the dust removing plate 53, the locking block 55 squeezes the elastic member 2 592. The elastic member 2 592 can be a spring in the prior art. The elastic member 2 592 contracts and accumulates elastic force. At the same time, as the locking block 55 slides on the guide rod portion 541, the gap between the locking block 55 and the lock seat 54 gradually increases until the lower end of the card block 56 can be inserted. The lower end of the card block 56 has a slope 43, so that the lower end of the card block 56 is smaller at the bottom and larger at the top, which facilitates the lower end of the card block 56 to be inserted into the card gap 561. The elastic member 3 593 can be a spring in the prior art. The spring 3 is in an extended state, and the force provided drives the card block 56 to slide downward, which facilitates the card block 56 to be inserted into the card gap 561. By means of the engagement between the engagement block 56 and the engagement gap 561 , when the sliding seat 50 slides upward, the locking block 55 is prevented from sliding away from the debris removing plate 53 , causing the sharp edge 531 to separate from the inclined surface 43 , thereby causing the debris removing operation to fail.

[0033] Meanwhile, when the sliding seat 50 slides downward, there are "impurity removal plates 53, lock seats 54, locking blocks 55, clamping blocks 56, rotating shafts 57, first rotating wheels 571, swinging members 58, first elastic members 591, second rotating wheels 572, second elastic members 592 and third elastic members 593" symmetrically distributed above and below the sliding seat 50 with the sliding seat 50 as the center (in this example, only the structural design above the sliding seat 50 is shown). When the sliding seat 50 slides downward, the above operations are repeated to ensure that each time the sliding seat 50 slides, the impurity removal plate 53 will perform impurity removal operations to ensure the stability of the rolling of the roller 52.

[0034] When the sliding seat 50 slides upward, at this time, the second rotating wheel 572 rotates in the same direction as the first rotating wheel 571. The unlocking protrusion 5721 on the second rotating wheel 572 comes into pressing contact with the upper side surface of the swinging member 58, and the unlocking protrusion 5721 presses the swinging member 58 to swing downward. The blocking portion 581 presses the first elastic member 591. At this time, the locking block 56 is still clamped in the clamping gap 561, and the locking head 551 is clamped in the locking groove 532 to ensure that the sharp edge 531 is in pressing contact with the inclined surface 43, and the impurity removal operation is continuously carried out. With the acting force provided by the first elastic member 591, it is ensured that the swinging member 58 is within a certain range of movement, that is, when the second rotating wheel rotates (regardless of the direction of rotation), the unlocking protrusion 5721 will come into pressing contact with one side surface (upper side surface or lower side surface) of the swinging member 58; when the sliding seat 50 slides downward, at this time, the second rotating wheel 572 rotates in the opposite direction to the first rotating wheel 571. The unlocking protrusion 5721 on the second rotating wheel 572 comes into pressing contact with the lower side surface of the swinging member 58, and the unlocking protrusion 5721 pushes the swinging member 58 into pressing contact with the limiting portion 562, thereby pushing the swinging member 58, the limiting portion 562, and the clamping block 56 to slide upward as a whole, causing the clamping block 56 to separate from the clamping gap 561; after the clamping block 56 separates from the clamping gap 561, the second elastic member 592 releases the accumulated elastic force, and the second elastic member 592 drives the locking block 55 and the locking head 551 away from the locking groove 532. The locking block 55 slides along the guide rod portion 541 in a direction away from the impurity removal plate 53 until the shuttle head separates from the locking groove 532. At this time, the impurity removal plate 53 is in a free swinging state. With the downward sliding trend of the sliding plate, the impurity removal plate 53 above the sliding seat 50 separates from the lower part, and at the same time, the sharp edge 531 below the sliding seat 50 is in a state of contacting and removing impurities with the inclined surface 43, and the sharp edge 531 above the sliding seat 50 is in a separated state from the inclined surface 43; the wear of the sharp edge 531 is reduced, and the service life is extended. Since the first rotating wheel and the rotating shaft 57 are connected by a one-way bearing, when the impurity removal plate 53 slides upward, the rotating shaft 57 above the impurity removal plate 53 drives the first rotating wheel 571 to rotate in the same direction synchronously. When the impurity removal plate 53 slides downward, the rotating shaft 57 above the impurity removal plate 53 does not drive the first rotating wheel 571 to rotate in the same direction synchronously, and the rotating shaft 57 below the impurity removal plate 53 will drive the corresponding first rotating wheel 571 to rotate in the same direction synchronously, so as to realize the impurity removal operation below the sliding seat 50.

[0035] With the above structure, when the sliding seat 50 slides up and down, it is possible to ensure the stable adjustment of the height position and inclination angle of the bracket 3 and the drilling rig 2 while reducing the friction between the sliding seat 50 and the guide rail 4, and at the same time removing impurities on the guide rail 4 to ensure the stability of the up and down sliding of the sliding seat 50. By the up and down sliding of the sliding seat 50 and the rotation of the roller 52, the automatic impurity removal and locking operations of the inclined surface 43 are realized, ensuring the smooth progress of the impurity removal operation. The coordinated action of the first runner 571, the second runner 572 and the elastic member realizes the automatic control of the working state of the impurity removal plate 53 by the rotation of the roller 52. When the roller 52 rotates, the locking protrusion 5711 of the first runner 571 pushes the locking block 55 to make the impurity removal plate 53 work, and the unlocking protrusion 5721 of the second runner 572 controls the latch 56 at a specific position to realize the switching of the working state of the impurity removal plate 53. This not only ensures the smooth sliding of the drilling rig 2 on the guide rail 4, but also improves the matching accuracy between the guide rail 4 and the roller 52 through the automatic impurity removal function, reduces the poor sliding and position deviation caused by the accumulation of impurities, and prolongs the service life of the device.

[0036] One end of the telescopic adjustment unit 6 is swingably arranged on the floating ship deck 1. The other end is arranged on the bracket 3 through the structure of a sliding sleeve - sliding rod. The telescopic adjustment unit 6 adjusts the height and inclination angle of the bracket 3 according to the change of the sea water depth and the inclination of the ship body through its own telescopic action, so that the drilling rig 2 remains relatively stable with respect to the center line of the subsea pipeline crossing.

[0037] In some examples, the structure of the lifting drive unit 7 of the floating connection device is refined; the lifting drive unit 7 includes a cross beam 73, an upper sprocket 74, a lower sprocket 75 and a rotation drive 76; for example, as Figures 1 to 13 shown, the lifting drive unit 7 includes a cross beam 73 arranged at the upper end of the guide rail 4, a plurality of upper sprockets 74 rotatably arranged on the cross beam 73, and the same number of lower sprockets 75 rotatably arranged on the floating ship deck 1. The rotation drive 76 (such as a motor - reducer combination) is arranged on the cross beam 73 and is used to drive one of the upper sprockets 74 to rotate. One end of the transmission chain 72 is fixed on the cross beam 73, and it successively bypasses the lower part of the transmission sprocket 71, the upper part of the upper sprocket 74, the lower part of the lower sprocket 75, and the upper part of the transmission sprocket 71, and the other end is fixed on the floating ship deck 1. The transmission sprocket 71 is rotatably arranged on the sliding seat 50. After the rotation drive 76 is started, it drives the upper sprocket 74 to rotate, and successively drives the transmission sprocket 71 and the lower sprocket 75 to rotate through the transmission chain 72. The transmission chain 72 wraps the upper and lower sides of the transmission sprocket 71, ensuring that while the transmission sprocket 71 rotates, it realizes the up or down movement, realizes the up and down height adjustment of the bracket 3 and the drilling rig 2, and ensures the smooth adjustment and operation of the bracket 3. It improves the operation convenience of the device and ensures the accuracy of the position adjustment of the drilling rig 2.

[0038] When the hull rises and falls and tilts due to the surging of seawater or the ebb and flow of tides, the lifting drive unit 7 responds. The rotation driver 76 starts, drives the upper sprocket 74 to rotate, makes the transmission sprocket 71 rotate through the transmission chain 72, and then drives the sliding seat 50 to move up and down along the guide rail 4 to adjust the height of the drill rig 2 to adapt to the change in seawater depth.

[0039] Meanwhile, the telescopic adjustment unit 6 controls the telescoping of the telescopic rod according to the hull tilt angle through a hydraulic or electric system. One end swings at the deck hinge seat, and the other end slides in the chute of the bracket 3 to adjust the tilt angle of the bracket 3, so that the drill rig 2 maintains a relatively stable angle relative to the center line of the submarine pipeline crossing.

[0040] During the sliding process, the rollers 52 of the adjusting frame 5 roll on the guide rail 4. If there are impurities on the inclined surface 43 of the guide rail 4, as the roller 52 rotates, the locking protrusion 5711 of the first runner 571 pushes the locking block 55, so that the locking chuck 551 is clamped into the locking groove 532, and the locking chuck 551 pushes the sharp edge 531 of the impurity removal plate 53 to abut against the inclined surface 43 and remove the impurities. When the sliding direction of the sliding seat 50 is adjusted, the unlocking protrusion 5721 of the second runner 572 acts on the swinging member 58 to control the block 56 to leave the clamping gap 561, the locking chuck 551 leaves the locking groove 532, the impurity removal plate 53 above the wheel seat 51 is separated from the inclined surface 43, and at the same time, the impurity removal plate 53 below the wheel seat 51 abuts against the inclined surface 43 to continue the impurity removal operation, ensuring the stability of the impurity removal operation.

[0041] Through the coordinated work of each component, the floating connection device of the drill rig 2 on this ship can compensate for the position and angle changes of the drill rig 2 caused by seawater fluctuations in real time and effectively. Keep the drill rig 2 in a relatively stable position relative to the center line of the submarine pipeline crossing in a complex marine environment, and improve the drilling effect of the submarine pipeline.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A floating connection device for a drilling rig on a ship, used for floatingly connecting the drilling rig (2) to a floating ship deck (1), characterized in that, Comprising: An adjusting frame (5), on which a sliding seat (50) capable of lifting and moving is slidably connected; A bracket (3), one end of which is hinged to the sliding seat (50); for carrying a drill rig (2) and capable of driving the drill rig (2) to lift and move under the action of the sliding seat (50); Two telescopic adjusting units (6) are provided, and the two telescopic adjusting units (6) are symmetrically supported below both sides of the central axis of the bracket. The lower end of the telescopic adjusting unit (6) is hinged to the floating ship deck (1), and the upper end is hinged to the bottom of the bracket (3) and is slidably matched with the bracket (3). The upper end of the telescopic adjusting unit (6) can slide relative to the bracket (3) toward one side closer to or farther from the adjusting frame (5) to adjust the height and inclination angle of the bracket (3).

2. The floating connection device of an on - ship drilling rig according to claim 1, wherein, The adjusting frame (5) includes two guide rails (4) extending in the vertical direction and a cross beam (73) connected to the upper ends of the two guide rails (4); the guide rail (4) includes a middle beam (41) and side retaining strips (42) symmetrically arranged on both sides of the middle beam (41), and the side retaining strip (42) has an inclined surface (43) arranged at an obtuse angle to the plate surface of the middle beam (41); A wheel seat (51) adjacent to the inclined surface (43) is detachably connected to the sliding seat (50). A roller (52) rollingly matched with the inclined surface (43) is rotatably connected to the wheel seat (51). A plurality of rollers (52) arranged at intervals in the vertical direction are rotatably connected to the same wheel seat (51). One end of the roller (52) away from the wheel seat (51) has a conical wheel head (521) rollingly matched with the plate surface of the middle beam (41).

3. The floating connection device of an on-board drilling rig according to claim 2, characterized in that, Each side retaining strip (42) has two inclined surfaces (43), and the two inclined surfaces (43) of the same side retaining strip (42) are arranged in one-to-one correspondence with the two side plate surfaces of the middle beam (41).

4. The floating connection device of an on-board drilling rig according to claim 2, characterized in that, An impurity removing assembly is further provided on the adjusting frame (5), and the impurity removing assembly includes: An impurity removing plate (53) is hinged to the wheel seat (51) through a horizontally extending hinge shaft, and the hinge shaft is arranged parallel to the inclined surface (43). The upper edge of the impurity removing plate (53) has a sharp edge (531). The impurity removing plate (53) can swing vertically until the sharp edge (531) contacts the inclined surface (43) and can lift and move under the drive of the sliding seat (50) to remove impurities on the inclined surface (43). One side of the impurity removing plate (53) away from the inclined surface (43) has a locking groove (532); A locking seat (54) is arranged on the wheel seat (51) and has a guide rod portion (541) horizontally extending toward one side close to the impurity removing plate (53); A locking block (55) is slidably sleeved on the outer periphery of the guide rod portion (541), and one side of the locking block (55) close to the impurity removing plate (53) has a locking chuck (551): Wherein, the locking chuck (551) can be driven by the locking block (55) to be inserted into the locking groove (532) so that the sharp edge (531) is close to the inclined surface (43) and is in a contact state; The locking clamp (551) can be moved out of the locking groove (532) under the drive of the locking block (55), so that the sharp edge (531) is away from the inclined surface (43) and is in a separated state.

5. The floating connection device of an on-board drilling rig according to claim 4, characterized in that, The adjustment frame (5) further comprises: A clamping block (56) is slidably disposed on the locking block (55) and is located on a side of the locking block (55) away from the debris removing plate (53). The lower portion of the clamping block (56) has a guide surface, and the guide surface extends obliquely from top to bottom toward a side away from the lock seat (54). The clamping block (56) is configured to slide downward and then be clamped into a clamping gap (561) between the locking block (55) and the lock seat (54), so that the locking clamp head (551) is clamped into the locking groove (532).

6. The floating connection device of an on-board drilling rig according to claim 5, characterized in that, The adjustment frame (5) further comprises: a rotating shaft (57) rotatably disposed on the wheel seat (51), the rotating shaft (57) extending in a horizontal direction and parallel to the inclined surface (43), the rotating shaft (57) being transmission-connected to one of the rollers (52) by means of a chain (573); The rotating wheel (571) is arranged on the rotating shaft (57) by means of a one-way rotating bearing. The rotating wheel (571) has a locking protrusion (5711) protruding outwardly. The locking protrusion (5711) can rotate along with the rotating wheel (571) in the circumferential direction and abut against the locking block (55) to push the locking block (55) closer to the debris removing plate (53).

7. The floating connection device of an on-board drilling rig according to claim 6, characterized in that, A horizontally extending limiting portion (562) is provided on the side of the clamping block (56); a swinging member (58) is hingedly connected to the clamping block (56) and is located below the limiting portion (562); a stopper (581) is provided on a side of the swinging member (58) close to the clamping block (56); an elastic member (591) is provided between the clamping block (56) and the stopper (581); the elastic member (591) is used to elastically push the stopper (581) outwards so that the swinging member (58) swings upwards and is arranged at an angle with a horizontal plane; The rotating shaft (57) is sleeved with a second rotating wheel (572), and the second rotating wheel (572) has an unlocking protrusion (5721) protruding toward the outer circumference, and the unlocking protrusion is used to press upward against the lower side plate surface of the swinging member (58) to push the limiting portion (562) upward with the help of the swinging member (58), so that the clamping block (56) moves away from the clamping gap (561).

8. The floating connection device of an on-board drill rig according to claim 7, characterized in that, The adjustment frame (5) further comprises: The second elastic member (592) has one end acting on the end of the guide rod portion (541) close to the debris removal plate (53) and the other end acting on the locking block (55), and is configured to push the locking block (55) away from the debris removal plate (53) so that the locking clamp (551) is disengaged from the locking groove (532).

9. The floating connection device of an on-board drilling rig according to claim 7, characterized in that, The adjustment frame (5) further comprises: The third elastic member (593) has one end acting on the latch block (56) and the other end acting on the locking block (55), and is configured to drive the latch block (56) to snap into the clamping gap (561) so that the locking chuck (551) disengages from the locking groove (532).

10. The floating connection device of an on-board drilling rig as claimed in claim 2, wherein An elevating drive unit (7) for driving the lifting and moving of the sliding seat (50) is provided on the adjusting frame (5), and the elevating drive unit (7) includes: An upper sprocket (74) rotatably arranged on the cross beam (73), the upper sprocket (74) is connected with a rotational drive (76), and the rotational drive (76) is arranged on the cross beam (73); A lower sprocket (75) rotatably arranged on the floating deck (1); A transmission sprocket (71) rotatably arranged on the sliding seat (50); A transmission chain (72) has one end fixed to the cross beam (73) and the other end fixed to the floating deck (1). The transmission chain (72) is sequentially wound under the transmission sprocket (71), above the upper sprocket (74), below the lower sprocket (75), and above the transmission sprocket (71). The transmission chain (72) can drive the transmission sprocket (71) and the sliding seat (50) to move up and down under the action of the upper sprocket (74).

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