A shipborne horizontal directional drill

Abstract

The present disclosure relates to the technical field of drilling rigs. The present disclosure provides an on-board horizontal directional drilling rig, which includes a bench. One end of a bearing frame is rotatably connected with a lifting roller. The lifting roller is slidably connected to the bench in the up-and-down direction. The bearing frame is used to drive the drill pipe to swing vertically to adjust the drilling angle of the drill pipe. The rotation axis of the first roller is arranged in the horizontal direction and is perpendicular to the extension direction of the bearing frame. The rotation axis of the second roller is parallel to the rotation axis of the first roller. The second roller is located on the side of the first roller close to the bearing frame. One end of a first cable is arranged on the first roller and sequentially wound around the bottom of the lifting roller and the top of the second roller, and the other end is connected to the extension end of the bearing frame. The first roller can rotate circumferentially to drive the bearing frame to swing vertically. The technical problems in the prior art that the power source of the bearing frame is single, which easily leads to the weakening of the connection stability between the driving device and the bearing frame and safety accidents such as the rollover of the bearing frame are solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of drilling rigs, and more particularly, to an offshore horizontal directional drilling rig. Background Art

[0002] In the field of offshore engineering, an offshore horizontal directional drilling rig is an important device for operations such as laying submarine pipelines and offshore drilling. In traditional offshore horizontal directional drilling rig technology, when adjusting the height and tilt angle of the drilling rig, a method of driving both ends of the carrier frame separately is usually adopted. By controlling the driving devices at both ends of the carrier frame, the entire carrier frame is tilted or its height is changed, thereby driving the drill pipe connected thereto to change synchronously, so as to achieve the purpose of adjusting the operating posture of the drilling rig.

[0003] During actual operation, each end relies on a single power source. The hull is affected by complex and variable sea conditions during navigation, which easily causes differences in the forces received at both ends of the carrier frame, resulting in uneven stress on the carrier frame. The long-term action of this uneven stress on the carrier frame may affect the connecting components to the drive source. When the connecting components repeatedly bear uneven tensile, compressive or torsional forces, problems such as wear and deformation will gradually occur. Over time, it is easy to cause the connection stability between the driving device and the carrier frame to weaken, thus facing safety accidents such as driving device failures and carrier frame rollovers. Summary of the Invention

[0004] To overcome the above defects, embodiments of the present disclosure provide an offshore horizontal directional drilling rig, which solves the technical problems in the prior art that the power source of the carrier frame is single, easily causes the connection stability between the driving device and the carrier frame to weaken, and safety accidents such as carrier frame rollovers.

[0005] According to one aspect, at least one embodiment of the present disclosure provides an offshore horizontal directional drilling rig, including: a bench, the bench is used to be arranged on the hull deck,

[0006] a carrier frame, one end of the carrier frame is rotatably connected with a lifting roller, the lifting roller is slidably connected to the bench in the vertical direction, the other end of the carrier frame extends upward and away from the bench, the carrier frame is used to carry the drill pipe, and the carrier frame is used to drive the drill pipe to swing vertically to adjust the drilling angle of the drill pipe;

[0007] a first roller member, the first roller member is rotatably arranged on the bench, and the rotation axis of the first roller member is arranged in the horizontal direction and perpendicular to the extension direction of the carrier frame;

[0008] A second roller member rotatably provided on the bench, with the rotation axis of the second roller member parallel to the rotation axis of the first roller member, and the second roller member located on a side of the first roller member close to the carrier frame;

[0009] A first cable, one end of the first cable is provided on the first roller member, and sequentially wound around the bottom of the lifting roller and the top of the second roller member, and the other end of the first cable is connected to the extension end of the carrier frame. The first roller member can rotate circumferentially to wind or unwind the first cable to drive the carrier frame to swing vertically.

[0010] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, there are two first roller members, the two first roller members are coaxially arranged and axially spaced;

[0011] There are two first cables, respectively and correspondingly connected to the two first roller members, and the two first cables are used to correspondingly support under the ends of the lifting roller.

[0012] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, a bearing space for avoiding the drill pipe is formed between the two first roller members, and the first roller member is provided with an axially through - hole. The on - ship horizontal directional drill further includes:

[0013] A third roller member, there are two third roller members, both rotatably provided on the bench, and respectively located on a side of the first roller member away from the bearing space, and the rotation axis of the third roller member is perpendicular to the rotation axis of the first roller member;

[0014] A second cable, the second cable sequentially passes through the through - holes of the two first roller members, and both ends of the second cable are respectively wound around the two third roller members. The part of the second cable located in the bearing space is bent downward to form a U - shaped section for supporting the drill pipe;

[0015] After the third roller member rotates, it can wind or release the second cable to support the part of the drill pipe extending outside the carrier frame.

[0016] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, the third roller member is arranged lower than the first roller member, and the third roller member can apply an outward and downward pulling force to the end of the second cable to make the second cable taut and support under the carrier frame.

[0017] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, there are two sets of driving components. Each set of the driving components is used to drive the adjacent first roller and the second roller to rotate. The driving component includes:

[0018] A worm, rotatably connected to the bench in the up - down direction. The upper end of the worm is connected with a rotary driving member. The worm has two transmission parts which are axially spaced apart and have the same spiral direction.

[0019] Two worm wheels, which are respectively connected to the first roller and the two third rollers in a one - to - one correspondence. The two are meshed with the two worm wheels in a one - to - one correspondence respectively, and are used to drive the first roller and the third roller to rotate synchronously.

[0020] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, the two worm wheels connected to the third roller in the two sets of driving components are respectively located on both sides of the first roller.

[0021] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, the on - ship horizontal directional drill further includes:

[0022] A load block, which is sleeved on the outer periphery of the U - shaped section of the second cable. There are two load blocks, and the two load blocks are symmetrically located on both sides of the middle of the U - shaped section.

[0023] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, the on - ship horizontal directional drill further includes:

[0024] A sliding seat, which is slidably arranged at the bottom of the bearing frame body, between the extended end of the bearing frame body and the lifting roller;

[0025] A base, which is located below the sliding seat;

[0026] An expansion and contraction driving member, one end of which is hinged to the base, and the other end is hinged to the bottom of the sliding seat. After expansion and contraction, it is used to lift or lower the sliding seat.

[0027] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, the height of the second roller is higher than the extended end of the bearing frame body, so that the first cable is inclinedly connected to the extended end of the bearing frame body.

[0028] For example, in an on - ship horizontal directional drill provided by at least one embodiment of the present disclosure, both the first cable and the second cable are chains.

[0029] The beneficial effects of the embodiments of the present disclosure are:

[0030] In the present disclosure, the first cable is wound around the second roller and connected to the extending end of the bearing frame body, which increases the contact area and contact length between the first cable and the second roller. When the first roller drives the first cable to move, a greater frictional force can be generated in the part wound around the second roller, effectively preventing the cable from slipping on the roller. When the extending end of the bearing frame body is subjected to an accidental impact force or a failure of the lifting device, the wound cable can provide stronger restraint and buffering effects, reducing the risk of the extending end of the bearing frame body falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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 described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0032] Figure 1 It is a schematic structural diagram of a shipborne horizontal directional drill of the present disclosure;

[0033] Figure 2 It is Figure 1 a schematic diagram of the running directions of the first cable and the second cable in the embodiment of

[0034] Figure 3 It is Figure 1 a first perspective schematic diagram of the bench and the driving assembly in the embodiment of

[0035] Figure 4 It is Figure 1 another perspective schematic diagram of the bench and the driving assembly in the embodiment of (showing the first cable);

[0036] Figure 5 It is Figure 1 a sectional schematic diagram of the bench and the driving assembly in the embodiment of (showing the second cable);

[0037] In the figure: 1. Bench; 2. Bearing frame body; 201. Lifting roller; 202. Extending end; 3. First roller; 301. Through hole; 4. Second roller; 5. First cable; 6. Bearing space; 7. Third roller; 8. Second cable; 801. U-shaped section; 9. Driving assembly; 901. Worm gear; 902. Worm; 903. Transmission part; 10. Load block; 11. Drill pipe; 12. Sliding seat; 13. Base; 14. Telescopic driving member; 15. Rotary driving member; 16. Guide rail seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0039] In order to simplify 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, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0040] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0041] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0043] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0044] like Figure 1 As shown, it shows a ship-borne horizontal directional drilling machine of the present disclosure, in some examples, such as Figure 1As shown, the carrier frame 2 is used to carry drill pipes. One end of the carrier frame 2 is rotatably connected to a lifting roller 201. The carrier frame 2 can swing relative to the lifting roller 201. The lifting roller 201 is arranged to be lifted and lowered on the bench 1. The bench 1 is preferably provided with a notch extending in the height direction. The lifting roller 201 preferably only has a lifting and lowering action relative to the bench 1 without a rotating action. In a reference example, strip-shaped protrusions can be provided at both ends of the lifting roller 201, and the bench 1 is correspondingly provided with guide grooves adapted to the strip-shaped protrusions, so as to achieve guidance and at the same time make the lifting roller 201 not rotate relative to the bench 1, thereby realizing stable sliding lifting. Only the carrier frame 2 can rotate relative to the lifting roller 201, improving stability.

[0045] The telescopic driving member 14 is connected to the hull deck through the base 13, and the lower end of the telescopic driving member 14 is hinged to the base 13. The base 13 is fixedly arranged on the hull deck to ensure its stability. One end of the telescopic driving member 14 is hinged and installed on the base 13, and the other end is hinged and installed on the sliding seat 12. The sliding seat 12 is slidably connected to the carrier frame 2. Preferably, a limiting portion is provided on the sliding seat 12 to limit the sliding distance between the sliding seat 12 and the carrier frame 2, improving safety.

[0046] The function of the first roller member 3 is to wind or unwind the first cable 5. Among them, the first roller member 3 is preferably the main driving member. The end of the first cable 5 is preferably wound around the first roller member 3, and then its path passes under the lifting roller 201 and supports the lifting roller 201. After passing through the lifting roller 201, the first cable 5 extends upward, is wound around the second roller member 4, and continues to extend after winding, and is connected to the extended end 202 of the carrier frame.

[0047] Among them, the first cable 5 and the second roller member 4 are preferably wound around each other, increasing the contact area and contact length between the first cable 5 and the second roller member 4. When the first roller member 3 winds or unwinds the first cable 5, a greater frictional force can be generated in the part wound around the second roller member 4, effectively preventing the first cable 5 from slipping on the second roller member 4. When the extended end 202 of the carrier frame 2 is subjected to an accidental impact force or the lifting device fails, the wound first cable 5 can provide a restraining and buffering effect, reducing the risk of the extended end 202 of the carrier frame 2 falling. It should be noted that the winding is preferably a single turn or a double turn winding to avoid the situation where the first cable 5 cannot move due to too many winding turns.

[0048] Furthermore, the first cable 5 is preferably an alloy chain or a high-strength steel wire rope, etc. In this solution, an alloy chain is used, and the chain can be customized according to different usage requirements, such as adjusting the pitch and increasing the chain strength.

[0049] Furthermore, as Figure 2As shown, in one example, when the drilling angle of the drill pipe 11 can be satisfied only by the movement of the extension end 202 of the bearing frame 2, the position of the lifting roller 201 does not need to be moved at this time. The specific working process is as follows:

[0050] Use the telescopic driving member 14 to drive the sliding seat 12, and then drive the bearing frame 2 to swing and rise with the lifting roller 201 as the axis. During the rising process, relative sliding occurs between the sliding seat 12 and the bearing frame 2, and the distance between the extension end 202 of the bearing frame 2 and the second roller member 4 decreases, and the first cable 5 becomes slack. Therefore, it is necessary to synchronously use a driving member such as a motor to drive the first roller member 3 to rotate and wind up to keep the first cable 5 in a tensioned state.

[0051] In another example, when the drilling angle of the drill pipe 11 needs to be further adjusted, the position of the lifting roller needs to be adjusted. The specific working process is as follows:

[0052] On the basis of the above example, further drive the first roller member 3 to rotate and wind up. The lifting roller 201 is lifted under the action of the first cable 5. Considering safety and stability, the guide groove of the gantry 1 for guiding the lifting roller 201 usually extends in the up and down direction. During the movement, the first roller member 3 winds up the first cable 5, driving the lifting roller 201 to lift. At this time, the height of the extension end 202 of the bearing frame 2 will follow and decrease, and move away from the side of the gantry 1. Although the extension end 202 of the bearing frame 2 will slightly stretch the first cable 5, it does not affect the lifting effect of the first cable on the lifting roller 201, thereby realizing the effect of adjusting the drilling angle of the drill pipe and ensuring the drilling accuracy of the drill pipe.

[0053] In summary, through the mutual cooperation of the first roller member 3, the second roller member 4 and the first cable 5, the fall protection of the extension end 202 of the bearing frame 2 of the bearing frame is realized, the safety degree of the bearing frame 2 is improved. At the same time, when the first roller member 3 rotates, the movement drive of the lifting roller 201 can also be realized, and the functionality of the overall equipment is expanded.

[0054] In some examples, as Figure 2 shown, starting from the first roller member 3 to one side, they are the first roller member 3, the lifting roller 201, the second roller member 4 and the extension end 202 of the bearing frame 2 in sequence. Among them, the arrangement of the lifting roller 201 between the second roller member 4 and the first roller member 3 can make the first cable 5 form a relatively balanced tension distribution on the bearing frame 2 and the lifting roller 201, enhancing the stability of the connection between the bearing frame 2 and the gantry 1. In complex sea conditions, this stable structural connection can effectively reduce the displacement and vibration of the bearing frame 2 caused by the hull shaking, reduce the risk of equipment failure, and ensure the safe and reliable operation of the drilling rig.

[0055] The extension end 202 of the support frame can swing around the lifting roller 201 under the push of the driving device. The height of the second roller member 4 is higher than the highest point of the extension end 202 of the support frame after the swing. Therefore, during the operation, after the first cable 5 passes through the second roller member 4, the connection with the extension end 202 of the support frame is always tilted downward. The tilting pulling force of the first cable 5 can be decomposed into horizontal and vertical components. The horizontal component can offset part of the lateral force generated by the swing and reduce the lateral shaking of the support frame 2; the vertical component can assist the support frame 2 in supporting the weight of the drill rod and further optimize the force balance of the support frame 2. In this way, under different working conditions, the support frame 2 can maintain better stability, ensure the precise operation of the drill rod, and improve the drilling quality.

[0056] In some examples, such as Figure 4 As shown, the two first rollers 3 and the two first cables 5 support the two sides of the lifting roller 201 respectively, so that the force on the lifting roller 201 of the support frame 2 is more uniform. When carrying the drill rod and bearing various forces during the operation, the weight can be better dispersed to avoid local stress concentration caused by single-point force, increase the overall bearing capacity, adapt to drill rods of larger size and weight, and broaden the application range of the drilling rig. The two first cables 5 are respectively arranged on both sides of the lifting roller 201. If one of the cables fails, such as breaking or severe wear, the other cable can still maintain the stability of the support frame 2 to a certain extent, prevent the support frame 2 from falling suddenly, buy time for the operator to deal with the fault, and reduce the risk of safety accidents. The two first rollers 3 arranged at intervals make the two first cables 5 independent of each other during operation, reducing the interference and friction between the cables. At the same time, the design of supporting the two sides of the lifting roller 201 respectively reduces the pressure on each cable, thereby reducing the wear between the cable and the support frame 2 and the roller. This not only extends the service life of the cables and reduces equipment maintenance costs, but also improves the operating efficiency and stability of the entire system.

[0057] In some examples, such as Figure 3 and Figure 4 As shown, the rotation axis of the third roller member 7 is perpendicular to the rotation axis of the first roller member 3, so that the second cable 8 can be rolled up and released more smoothly. The second cable 8 extends from the middle to both sides, passes through the through holes 301 of the two first roller members 3, and is wound on the two third roller members 7. The through holes 301 provide position constraints for the second cable 8 to prevent the second cable 8 from lateral displacement or shaking during operation. When the drilling rig is working, the second cable 8 will be affected by various forces, such as tension, friction, etc. If there is no limit of the through hole 301, the cable may deviate from the predetermined track, resulting in inaccurate support position of the U-shaped section on the drill rod, affecting the stability of the drill rod and the drilling accuracy.

[0058] Meanwhile, passing the second cable 8 through the through-hole 301 of the first roller member 3 can make full use of the space of the equipment, making the structure of the entire drill rig more compact. This design reduces the exposed length of the cable outside, reduces the risk of the cable being entangled or collided with other moving parts, thereby improving the safety of the equipment and facilitating the overall layout and installation of the equipment.

[0059] By winding or releasing the second cable 8 through the third roller member 7 to change the length of the U-shaped section, the supporting position of the drill pipe can be adjusted in real time with the change of the height of the lifting roller 201 of the bearing frame 2, providing auxiliary support for the drill pipe. Compared with relying on the railing on the circumferential side of the hull deck for support, the dynamic adjustment of the U-shaped section avoids the collision and friction between the drill pipe and the railing due to relative displacement, effectively reducing the wear and deformation of the drill pipe and ensuring the structural integrity and operation accuracy of the drill pipe.

[0060] In some examples, the length of the second cable 8 needs to satisfy that when the lifting roller 201 of the bearing frame 2 is at the lowest position, it can maintain the support of the drill pipe carried in this state, expanding the scope of action of the second cable 8, so that the drill rig does not need to frequently adjust the cable length or replace the cable under different operating conditions, reducing the equipment commissioning time and maintenance cost.

[0061] In some examples, such as Figure 3 and Figure 4 shown, the third roller member 7 is located on the side of the second roller member 4 away from the bearing space 6, and the two third roller members 7 work synchronously, which can apply uniform and consistent forces on both sides of the second cable 8. When adjusting the length of the U-shaped section to support the drill pipe, it can ensure that the winding and release amounts on both sides of the second cable 8 are exactly the same, maintaining the shape and position stability of the U-shaped section.

[0062] In some examples, such as Figure 5 shown, the third roller member 7 is lower than the through-hole 301. When the third roller member 7 rotates to wind the second cable 8, after the second cable 8 extends out of the through-hole 301, an inclined downward pulling force will be applied to the second cable 8 by the third roller member 7. Under the combined action of gravity and this pulling force, the second cable 8 located in the through-hole 301 will closely adhere to the lower end of the through-hole 301, thereby ensuring the stable position of the cable in the through-hole 301, avoiding following the rotation of the first roller member 3, reducing the possibility of shaking and offset, enabling the U-shaped section 801 to more stably support the drill pipe, ensuring the stability of the drill pipe during the drilling process, and further improving the drilling accuracy.

[0063] In some examples, such as Figure 3 and Figure 4As shown, two transmission parts 903 with the same helix direction are provided on the worm 902, which are respectively engaged with the worm wheels 901 on the two first roller members 3 and the two third roller members 7. When the worm 902 rotates, its helical structure will interact with the teeth of the worm wheel 901. The two transmission parts 903 of the worm 902 have the same helix direction, and will drive the engaged worm wheels 901 in the same way during rotation, thereby driving the two first roller members 3 and the two third roller members 7 to rotate synchronously. The rotation of the first roller member 3 realizes the winding or releasing of the first cable 5, controls the lifting of the lifting roller 201 of the carrier frame 2 and the traction of the drill pipe; the rotation of the third roller member 7 adjusts the length of the U-shaped section through the second cable 8 to stably support the drill pipe. And when the first roller member 3 winds up, the third roller member 7 will also wind up synchronously, making the whole more coordinated. It should be noted that the transmission ratios of the two worm wheels 901 and the two transmission parts 903 can be adjusted correspondingly, so that when the first roller member 3 winds up or unwinds, the U-shaped section 801 of the second cable 8 can move synchronously and always maintain the support of the drill pipe 11.

[0064] In some examples, the two worm wheels 901 connected to the third roller member 7 in the two sets of driving assemblies 9 are respectively located on both sides of the first roller member 3, as Figure 1 shown. The two rotary driving members 15 are respectively located on both sides of the first roller member 3 along the drilling direction of the drill pipe 11, rather than on the same side, so that the force on the whole system is more uniform, effectively reducing problems such as deflection and vibration that may be caused by unilateral force.

[0065] In some examples, as Figure 5 shown, the load block 10 increases the self-weight of the U-shaped section 801, so that the second cable 8 maintains a good tension state during the whole operation process. The stable cable tension helps to improve the friction between the second cable 8 and the roller member, preventing the second cable 8 from slipping on the roller member. When the first roller member 3 and the third roller member 7 wind up or release the cable, the tensioned second cable 8 can transmit power more accurately, ensuring the accuracy of the lifting of the carrier frame 2 and the adjustment of the U-shaped section, and improving the stability of the equipment operation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not restrictive. 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. An on-board horizontal directional drill, characterized in that, Comprising: A bench (1) for being arranged on the hull deck. A bearing frame (2), one end of the bearing frame (2) is rotatably connected with a lifting roller (201), the lifting roller (201) is slidably connected to the bench (1) in the vertical direction, the other end of the bearing frame (2) extends upward to the side away from the bench (1), the bearing frame (2) is used for bearing a drill pipe (11), and the bearing frame (2) is used for driving the drill pipe (11) to swing vertically to adjust the drilling angle of the drill pipe (11). A telescopic driving member (14), the lower end of the telescopic driving member (14) is hinged to the hull deck, and the upper end is slidably connected to the extension end (202) of the bearing frame (2) through a sliding seat (12), and the upper end of the telescopic driving member (14) is hinged to the sliding seat (12) for driving the bearing frame (2) to swing vertically. A first roller member (3) rotatably arranged on the bench (1), and the rotation axis of the first roller member (3) is arranged in the horizontal direction and perpendicular to the extension direction of the bearing frame (2). A second roller member (4) rotatably arranged on the bench (1), the rotation axis of the second roller member (4) is parallel to the rotation axis of the first roller member (3), and the second roller member (4) is located on the side of the first roller member (3) close to the bearing frame (2). A first cable (5), one end of the first cable (5) is arranged on the first roller member (3), and is sequentially wound around the bottom of the lifting roller (201) and the top of the second roller member (4), and the other end of the first cable (5) is connected to the extension end (202) of the bearing frame (2), and the first roller member (3) can rotate circumferentially to wind or unwind the first cable (5) to drive the bearing frame (2) to swing vertically. There are two first roller members (3), and the two first roller members (3) are coaxially arranged and spaced along the axial direction. There are two first cables (5), which are respectively and correspondingly connected to the two first roller members (3), and the two first cables (5) are used for correspondingly supporting under the ends of the lifting roller (201). A bearing space (6) for avoiding the drill pipe (11) is formed between the two first roller members (3), and a through hole (301) axially penetrating is arranged on the first roller member (3). The shipborne horizontal directional drill further includes: Two third roller members (7) rotatably arranged on the bench (1) and respectively located on the side of the first roller member (3) away from the bearing space (6), and the rotation axis of the third roller member (7) is perpendicular to the rotation axis of the first roller member (3). A second cable (8) passes through the through holes (301) of the two first roller members (3) in sequence. Both ends of the second cable (8) are respectively wound around the two third roller members (7). The portion of the second cable (8) located within the bearing space (6) is bent downward to form a U-shaped section (801) for supporting the drill pipe (11). After the third roller member (7) rotates, it can wind up or release the second cable (8) to support the portion of the drill pipe (11) extending outside the bearing frame (2).

2. The shipborne horizontal directional drill according to claim 1, wherein The third roller member (7) is arranged lower than the first roller member (3). The third roller member (7) can apply a pulling force outward and downward to the end of the second cable (8), so that the second cable (8) is tensioned and supported below the bearing frame (2).

3. The shipborne horizontal directional drill according to claim 1 or 2, characterized in that, It further includes two sets of driving components (9). Each set of driving components (9) is used to drive the adjacent first roller member (3) and the second roller member (4) to rotate. The driving component (9) includes: A worm (902) is rotatably connected to the bench (1) in the up and down direction. The upper end of the worm (902) is connected with a rotary driving member (15). The worm (902) has two transmission parts (903) arranged at an axial interval and having the same spiral direction. Two worm wheels (901) are respectively connected to the first roller member (3) and the two third roller members (7). The two transmission parts (903) are respectively meshed with the two worm wheels (901) to drive the first roller member (3) and the third roller member (7) to rotate synchronously.

4. The shipborne horizontal directional drill according to claim 3, wherein The two worm wheels (901) connected to the third roller member (7) in the two sets of driving components (9) are respectively located on both sides of the first roller member (3).

5. The shipborne horizontal directional drill according to claim 3, characterized in that, The described shipborne horizontal directional drill further includes: Load blocks (10) are sleeved on the outer periphery of the U-shaped section (801) of the second cable (8). There are two load blocks (10), and the two load blocks (10) are symmetrically located on both sides of the middle of the U-shaped section (801).

6. The shipborne horizontal directional drill according to claim 4, characterized in that A guide rail seat (16) that slidably cooperates with the sliding seat (12) is provided at the bottom of the bearing frame (2). The extending direction of the guide rail seat (16) is the same as the extending direction of the bearing frame (2).

7. The shipborne horizontal directional drill according to claim 2, characterized in that, The height of the second roller member (4) is higher than the extending end (202) of the bearing frame (2), so that the first cable (5) is inclinedly connected to the extending end (202) of the bearing frame (2).

8. The shipborne horizontal directional drill according to claim 6, wherein, Both the first cable (5) and the second cable (8) are chains.

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