A multi-drum friction winch for laying submarine cables

Abstract

The invention discloses a multi-drum friction winch for submarine cable burial, comprising a winch base and a docking support, and a winch movably mounted on both sides of the docking support, and a traction rope is wound and mounted on the winch, and a hook sleeve is fixedly mounted on one end of the traction rope. When the traction rope is broken by force, the traction rope is quickly pulled in the displacement slider, and then the rotating rod is quickly rotated through the clamping wheel, so that the spring sheet provided on the rotating rod is quickly ejected and pushed in contact with the contact plate, so that the contact rod pushes the support rod in the magnetic clamp block, when the support rod pushes the retaining ring under the force, and then the retaining ring is cancelled to block the tooth plate, at this time, the tooth plate is reversely inserted into the traction rope under the elastic potential energy of the spring rod for clamping and clamping, and then the traction rope is clamped in the magnetic clamp block, and the connection with the magnetic clamp block is maintained by the traction auxiliary rope, and the broken traction rope is connected by the magnetic clamp block, so as to prevent the traction rope from falling directly into the sea after breaking.

Description

Technical Field

[0001] The invention relates to the technical field of submarine cable burying supporting equipment, in particular to a multi-drum friction winch for submarine cable burying. Background Art

[0002] A winch is generally used to move or lift heavy equipment. A laying machine is an important equipment for a cable-laying ship to lay submarine cables. When a cable-laying ship is laying submarine cables, the retraction and towing of the laying machine is usually completed by a winch on the cable-laying ship. The winch tows the laying machine under the drag of the traction rope, thereby controlling the movement of the laying machine and gradually releasing the submarine cable to release the submarine cable and ensure that the cable is laid on the seabed at a controllable speed and tension. The multi-drum friction winch adjusts and controls the rope feeding rotation speed and rope tension of multiple stranding drums through friction, thereby effectively controlling the laying process of the submarine cable.

[0003] When the cable is towed in the ocean, the ocean currents in some sea areas are fast, and the drifting debris in the ocean is easily entangled in the towing rope of the towing burying machine, which gradually bends and stretches the towing rope, so that the towing burying machine gradually deviates from the preset track range. Secondly, when the burying machine buries the submarine cable, it usually covers the submarine cable with a seabed plow for burying. When the geology of the seabed is relatively hard or there are rocks blocking it, the tension of the towing rope of the towing burying machine is relatively large, which makes it easy for the head of the towing rope connected to the winch or the tail clamping point of the towing rope connected to the burying machine to break. If the towing rope breaks due to the large tension, the towing rope will not only easily rebound to the cable ship to cause harm to the staff or mechanical equipment, but the towing rope at the other end will fall into the sea, which is not convenient for the salvage of the cable burying equipment and the repair of the towing rope, thereby increasing extra time and economic costs.

[0004] Therefore, a multi-drum friction winch for submarine cable laying is proposed. Summary of the invention

[0005] The object of the present invention is to provide a multi-drum friction winch for submarine cable burying, so as to solve the problem proposed in the above background technology that when the tension of the traction rope is too large, the head part connecting the traction rope with the winch or the tail part connecting the traction rope with the burying machine is easy to break. When the traction rope is too large and breaks, the traction rope is not only easy to rebound to the cable ship and cause harm to the staff or mechanical equipment, but the traction rope at the other end will fall into the sea, which is not convenient for the salvage of the cable burying equipment and the repair of the traction rope.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A multi-drum friction winch for laying a submarine cable comprises a winch base and a docking support, and winches movably mounted in engagement with both sides of the docking support, and a traction rope is wound and mounted on the winch, and a hook sleeve is fixedly mounted on one end of the traction rope, a support base is provided at one end of the winch on one side of the docking support, and the support base is fixedly connected to the winch base, a transmission is provided on the other side of the docking support, and the transmission is fixedly connected to the winch base, a transmission base is fixedly mounted on one side of the winch base, the docking support and the support base, a reciprocating screw rod is movably mounted between the transmission bases, a displacement slider is nested and movably mounted on the reciprocating screw rod, and the traction rope runs through the inner side of the displacement slider;

[0008] A contact rod is installed through the inner side of the displacement slider, a contact plate is fixedly connected to one side of the contact rod, a rotating rod is provided on one side of the contact plate, and the rotating rod is movably connected with the displacement slider, a clamping wheel is fixedly connected in the middle of the rotating rod, and the clamping wheel and the traction rope are arranged to be fitted and clamped;

[0009] A magnetic clamp is provided on one side of the displacement slider, and fixing rods are fixedly connected to the two sides of the magnetic clamp. A support rod is movably installed in the middle of the fixed rod, and one side of the support rod is fitted with the contact rod. A retaining ring is embedded in the interior of the magnetic clamp, and the support rod is symmetrically fitted on both sides of the retaining ring. A tooth plate is provided at one end of the retaining ring, and the tooth plate is movably connected to the magnetic clamp, and a spring rod is provided on one side of the tooth plate, and the spring rod is fixedly connected to the magnetic clamp.

[0010] Preferably: a driving machine is fixedly connected to one side of the articulated trolley base, and the driving machine and the transmission are transmission-connected, a transmission plate is fixedly installed on one side of the transmission, a transmission plug shaft is movably installed on the lower end of the transmission plate, and the transmission plug shaft is transmission-connected in the transmission base.

[0011] Preferably: permanent magnets are equidistantly installed around the inner side of the capstan, and rotating shafts are fixedly connected in the middle of the capstans on both sides of the docking support, and the rotating shaft on one side of the capstan is engaged with the docking support for transmission connection, and the rotating shaft on the other side of the capstan is engaged with the transmission for transmission connection.

[0012] Preferably, a transmission disc is fixedly mounted on one side of the transmission plate, a transmission belt is arranged around the outer side of the transmission disc, and the transmission disc is connected to the rotating shaft through the transmission belt.

[0013] Preferably, an inductor is provided inside the permanent magnet, and the inductor is fixedly connected to the docking support, a friction block is embedded in the middle of the inductor, and an electric push rod electrically connected to the inductor is provided inside the friction block.

[0014] Preferably: a reduction sleeve is fixedly connected to both sides of one end of the winch base, a reduction rod is movably installed in the middle of the reduction sleeve, a reduction plate is installed in one end of the reduction rod, an elastic part is provided on the inner side of the reduction plate, and the elastic part is fixedly connected to the reduction rod.

[0015] Preferably, the reduction sleeve and the reduction plate are nested and fit together, a traction auxiliary rope is wound around the outer side of the reduction rod, and the traction auxiliary rope and the magnetic clamp block are connected by a buckle.

[0016] Preferably: a reciprocating slide groove is provided at both upper and lower ends of the displacement slider, and the reciprocating slide groove and the reciprocating screw rod are nested and movably connected, a magnetic joint is fixedly connected to one side of the displacement slider, and the magnetic clamp is magnetically connected to the displacement slider through the magnetic joint.

[0017] Preferably, a docking hole is provided on one side of the magnetic clamp block, and the contact rod is connected to the support rod through the docking hole.

[0018] The present invention provides a multi-drum friction winch for submarine cable burying, which has the following technical points and beneficial effects:

[0019] 1. The present invention designs devices such as a contact plate, a rotating rod and a tooth plate. When the traction rope breaks under force, the traction rope is quickly pulled in the displacement slider, and then the rotating rod is quickly rotated through the clamping wheel, so that the elastic sheet provided on the rotating rod is quickly ejected and contacts and pushes with the contact plate, so that the contact rod pushes the support rod in the magnetic clamp block. When the support rod pushes out the retaining ring under the force, the retaining ring on the tooth plate is cancelled. At this time, the tooth plate is reversely inserted into the traction rope under the elastic potential energy of the spring rod to engage and clamp, and then the traction rope is engaged in the magnetic clamp block, and the connection with the magnetic clamp block is maintained by the traction auxiliary rope, and the broken traction rope is connected through the magnetic clamp block, so as to prevent the traction rope from falling into the sea directly after breaking.

[0020] 2. The present invention designs devices such as a deceleration bar, a deceleration plate and a deceleration sleeve. When the traction rope falls off, the magnetic clamp pulls the traction secondary rope, thereby causing the deceleration bar to rotate in the deceleration sleeve. The rotation of the deceleration bar causes the deceleration plate to fit and rub in the deceleration sleeve to reduce the rotation speed of the deceleration bar, thereby slowly reducing the falling and sinking speed of the magnetic clamp and the traction rope through the traction secondary rope. When the magnetic clamp and the traction rope gradually stop sinking through the traction secondary rope, the magnetic clamp and the traction rope are towed and salvaged through the traction secondary rope, thereby facilitating the subsequent repair of the broken traction rope.

[0021] 3. The present invention designs devices such as a reciprocating slide, a reciprocating screw and a transmission plug shaft, inserts the transmission plug shaft into the transmission plate and the transmission base, and then transmits the power of the transmission plate to the reciprocating screw through the transmission plug shaft for rotational operation, slides on the reciprocating screw through the reciprocating slide, and then makes the displacement slider slide back and forth on the reciprocating screw, so as to extract the multiple layers of traction rope evenly wound on the capstan for cable delivery. After the cable is buried, the capstan is reversely rotated by reverse driving to recover the traction rope. At this time, the displacement slider slides back and forth on the reciprocating screw, and then the multiple layers of traction rope evenly wound on the capstan are collected for cable delivery and collection by the capstan.

[0022] 4. The present invention designs devices such as permanent magnets, inductance coils and friction blocks. When the traction rope gradually bends and stretches due to fast ocean currents or entanglement of debris, the speed of the winch's rotating cable delivery will increase. At this time, the permanent magnet on the winch and the inductance coil on the docking support generate current through electromagnetic induction, and the current is rectified by the rectifier inside the inductance coil and transmitted to the electric push rod in the friction block. The friction block is pushed out by the electric push rod to fit and rub against the rotating shaft, thereby reducing the winch's rotating cable delivery speed, and the traction rope is gradually straightened under the tension at both ends of the cable laying ship and the burying machine, thereby preventing the traction rope from bending and stretching and changing the preset track range of the cable burying machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of the docking support in the present invention;

[0025] Figure 3 It is a partial structural schematic diagram of the winch in the present invention;

[0026] Figure 4 It is a schematic diagram of the disassembled structure of the deceleration rod and the winch base in the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure between the traction rope and the displacement slider in the present invention;

[0028] Figure 6 It is a partial structural schematic diagram of the auxiliary traction rope and the magnetic clamp block in the present invention;

[0029] Figure 7 It is a schematic diagram of the internal structure of the displacement slider in the present invention;

[0030] Figure 8 It is a schematic diagram of the disassembly structure of the displacement slider and the magnetic clamp block in the present invention;

[0031] Fig. 9It is a partial structural schematic diagram of the magnetic clamp block in the present invention;

[0032] Fig.10 It is a partial structural schematic diagram of the magnetic clamp block in the present invention;

[0033] Fig.11 It is a schematic diagram of the partial structure of the tooth plate in the present invention.

[0034] In the figure: 1. winch base; 101. reduction sleeve; 2. drive motor; 3. transmission; 4. docking support; 401. inductor coil; 402. friction block; 5. support base; 6. transmission base; 7. reciprocating screw rod; 8. displacement slider; 801. contact plate; 802. contact rod; 803. reciprocating slide; 804. rotating rod; 8041. clamping wheel; 805. magnetic suction joint; 9. magnetic suction clamp Block; 901, fixed rod; 902, support rod; 903, retaining ring; 904, tooth plate; 905, spring rod; 906, docking hole; 10, transmission plate; 11, transmission plug shaft; 12, transmission belt; 13, capstan; 1301, permanent magnet; 1302, rotating shaft; 14, traction rope; 1401, hook; 15, deceleration rod; 1501, deceleration plate; 16, traction auxiliary rope; 17, transmission plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 11 The present invention provides a technical solution of a multi-drum friction winch for submarine cable burial:

[0037] A multi-drum friction winch for laying a submarine cable comprises a winch base 1 and a docking support 4, and winches 13 movably mounted on both sides of the docking support 4, and a traction rope 14 is wound and mounted on the winch 13, and a hook sleeve 1401 is fixedly mounted on one end of the traction rope 14, a support base 5 is provided at one end of the winch 13 on one side of the docking support 4, and the support base 5 is fixedly connected to the winch base 1, a transmission 3 is provided on the other side of the docking support 4, and the transmission 3 is fixedly connected to the winch base 1, a transmission base 6 is fixedly mounted on one side of the winch base 1, a reciprocating screw rod 7 is movably mounted between the transmission bases 6, a displacement slider 8 is nested and movably mounted on the reciprocating screw rod 7, and the traction rope 14 runs through the inner side of the displacement slider 8;

[0038] A contact rod 802 is inserted and installed on the inner side of the displacement slider 8, and a contact plate 801 is fixedly connected to one side of the contact rod 802. A rotating rod 804 is provided on one side of the contact plate 801, and the rotating rod 804 is movably connected to the displacement slider 8, and a clamping wheel 8041 is fixedly connected in the middle of the rotating rod 804, and the clamping wheel 8041 and the traction rope 14 are arranged to be fitted and clamped;

[0039] A magnetic clamp 9 is provided on one side of the displacement slider 8, and a fixing rod 901 is fixedly connected to both sides of the inside of the magnetic clamp 9, and a support rod 902 is movably installed in the middle of the fixing rod 901, and one side of the support rod 902 is arranged to fit with the contact rod 802, and a retaining ring 903 is embedded and installed inside the magnetic clamp 9, and the support rod 902 is symmetrically attached to both sides of the retaining ring 903, and a tooth plate 904 is provided at one end of the retaining ring 903, and the tooth plate 904 is movably connected to the magnetic clamp 9, and a spring rod 905 is provided on one side of the tooth plate 904, and the spring rod 905 is embedded and fixedly connected to the magnetic clamp 9;

[0040] As an embodiment of the present invention, Figures 1 to 11 As shown, both upper and lower ends of the displacement slider 8 are provided with reciprocating slide grooves 803, and the reciprocating slide grooves 803 and the reciprocating screw rod 7 are nested and movably connected, one side of the displacement slider 8 is fixedly connected with a magnetic suction joint 805, and the magnetic suction clamping block 9 is magnetically connected to the displacement slider 8 through the magnetic suction joint 805, one side of the magnetic suction clamping block 9 is provided with a docking hole 906, and the contact rod 802 is connected to the support rod 902 through the docking hole 906;

[0041] When working, the hook 1401 on the traction rope 14 is connected to the cable burying machine on the seabed for dragging and moving, the driving machine 2, the transmission 3, the docking support 4 and the supporting base 5 are fixed by the winch base 1, and the winch 13 is installed on the left and right sides of the docking support 4, so that the rotating shaft 1302 on one of the winches 13 is connected with the transmission 3, and is transmitted to the other winch 13 on one side in the docking support 4 through the rotating shaft 1302, so that the winches 13 on both sides of the docking support 4 are rotated to send cables;

[0042] When the traction rope 14 is broken by the force at the contact clamping point position in the displacement slider 8, the traction rope 14 is quickly pulled out in the displacement slider 8. Since the clamping wheel 8041 is in close contact with the traction rope 14, the rotating rod 804 is quickly rotated through the clamping wheel 8041, so that the spring sheet provided on the rotating rod 804 is quickly ejected and pushed into contact with the contact plate 801. By pushing the contact plate 801, the contact rod 802 pushes the support rod 902 in the magnetic clamp block 9 through the docking hole 906. Since the support rod 902 is installed as a lever in the fixed rod 901, when the support rod 902 is The retaining ring 903 is pushed out under the force, thereby canceling the isolation of the retaining ring 903 on the tooth plate 904. At this time, the tooth plate 904 is inserted into the traction rope 14 under the elastic potential energy of the spring rod 905 to clamp and clamp, thereby clamping the traction rope 14 in the magnetic clamp block 9 to prevent it from breaking and detaching. Since the magnetic clamp block 9 is magnetically connected through the magnetic joint 805, when the traction rope 14 breaks with a large pulling force, the magnetic clamp block 9 is separated from the displacement slider 8 through the magnetic joint 805. At this time, the magnetic clamp block 9 is kept pulled by the traction auxiliary rope 16, thereby preventing the traction rope 14 from falling directly into the sea after breaking;

[0043] After the traction rope 14 is salvaged and repaired, the magnetic clamp 9 is reused by squeezing the tooth plate 904 and pushing the retaining ring 903 back to reset. Then, the spring piece on the rotating rod 804 is returned to its original position, thereby facilitating the reuse of the displacement slider 8.

[0044] As an embodiment of the present invention, Figure 1 and Figure 2 As shown, a driving machine 2 is fixedly connected to one side of the winch base 1, and the driving machine 2 is transmission-connected with the transmission 3, a transmission plate 10 is fixedly installed on one side of the transmission 3, a transmission plug shaft 11 is movably mounted on the lower end of the transmission plate 10, and the transmission plug shaft 11 is embedded in the transmission base 6 for transmission connection;

[0045] When working, the operation of the driving machine 2 provides power to the transmission 3, and through the power conversion of the transmission 3, the winch 13 is driven to rotate through the rotating shaft 1302. When in use, the transmission plug shaft 11 is inserted into the transmission plate 10 and the transmission base 6, and the transmission plug shaft 11 is meshed with the reciprocating screw 7 in the transmission base 6 for transmission, and then the power of the transmission plate 10 is transmitted to the reciprocating screw 7 through the transmission plug shaft 11 for rotation.

[0046] As an embodiment of the present invention, Figures 1 to 4As shown, permanent magnets 1301 are equidistantly mounted around the inner side of the capstan 13, rotating shafts 1302 are fixedly connected to the middle of the capstan 13 on both sides of the docking support 4, and the rotating shaft 1302 on one side of the capstan 13 is engaged with the docking support 4 for transmission connection, and the rotating shaft 1302 on the other side of the capstan 13 is engaged with the transmission 3 for transmission connection, and a transmission disc 17 is fixedly mounted on one side of the transmission plate 10, and a transmission belt 12 is arranged around the outer side of the transmission disc 17, and the transmission disc 17 is connected to the rotating shaft 1302 for transmission through the transmission belt 12;

[0047] An inductor 401 is provided inside the permanent magnet 1301, and the inductor 401 is fixedly connected to the docking support 4, a friction block 402 is embedded in the middle of the inductor 401, and an electric push rod electrically connected to the inductor 401 is provided inside the friction block 402;

[0048] During operation, when the ocean current is fast or debris is entangled, the traction rope 14 gradually bends and stretches. Since the speed of the cable-laying ship is relatively stable when the cable is buried, when the winch 13 bends and stretches the traction rope 14, the speed of rotating the cable will gradually increase. At this time, the permanent magnet 1301 on the winch 13 and the inductor 401 on the docking support 4 generate current through electromagnetic induction. When the traction rope 14 is not entangled with debris, the impact force of the ocean current is small. At this time, the normal rotation and cable sending speed of the winch 13 is slow, and the current generated by the permanent magnet 1301 and the inductor 401 is low. The generated current is not enough to drive the electric push rod to make the friction block 402 fit and rub against the rotating shaft 1302, so as to prevent the winch 13 from making the friction block 402 fit and rub against the rotating shaft 1302 when the traction rope 14 is normally sent, thereby avoiding affecting normal use. When the traction rope 14 is affected by the ocean current, When debris is entangled, the traction rope 14 increases the speed of the winch 13 rotating and sending the cable under the impact of the ocean current. At this time, the winch 13 rotates faster, thereby increasing the current generated by the permanent magnet 1301 and the inductor 401. The current is rectified by the rectifier in the inductor 401 and transmitted to the electric push rod in the friction block 402. When the generated current is larger, the force of pushing the friction block 402 by the electric push rod is greater. At this time, the friction force between the friction block 402 and the rotating shaft 1302 is also greater. The friction block 402 is pushed out by the electric push rod to fit and rub against the rotating shaft 1302, thereby realizing the self-adaptive control of the rotation and sending speed of the winch 13 according to the rotation speed of the winch 13. At this time, the traction rope 14 on the winch 13 is gradually straightened under the tension at both ends of the cable laying ship and the burying machine, thereby preventing the traction rope 14 from bending and extending to change the preset track range of the cable burying machine.

[0049] Secondly, through the rotation transmission of the rotating shaft 1302, the power on the rotating shaft 1302 is transmitted to the transmission plate 10 through the transmission belt 12 and the transmission disk 17, so that the transmission plate 10 is used for power conversion transmission. The reciprocating screw 7 is limitedly rotated in the transmission base 6 through the transmission of the transmission plate 10, and is nested and meshed and slid on the reciprocating screw 7 through the reciprocating slide groove 803, so that the displacement slider 8 slides back and forth left and right on the reciprocating screw 7, so that the multiple layers of traction rope 14 evenly distributed on the capstan 13 are pulled out and sent. After the cable burying is completed, the capstan 13 is reversely rotated by reverse driving to recover the traction rope 14. At this time, the displacement slider 8 slides back and forth on the reciprocating screw 7, so that the multiple layers of traction rope 14 are evenly distributed and wound on the capstan 13 for collection.

[0050] As an embodiment of the present invention, Figures 1 to 6 As shown, both sides of one end of the winch base 1 are fixedly connected with a reduction sleeve 101, a reduction rod 15 is movably installed in the middle of the reduction sleeve 101, a reduction plate 1501 is movably installed in one end of the reduction rod 15, and an elastic member is provided inside the reduction plate 1501, and the elastic member is fixedly connected to the reduction rod 15, the reduction sleeve 101 and the reduction plate 1501 are nested and fitted, and a traction auxiliary rope 16 is wound around the outer side of the reduction rod 15, and the traction auxiliary rope 16 and the magnetic clamp 9 are connected in a buckle manner;

[0051] During operation, when the magnetic clamp block 9 is pulled apart from the displacement slider 8 under the engagement and fixation between the tooth plate 904 and the traction rope 14, the connection with the magnetic clamp block 9 is maintained through the traction auxiliary rope 16, and the broken traction rope 14 is connected through the magnetic clamp block 9, thereby preventing the broken traction rope 14 from falling into the sea and being inconvenient to salvage and maintain. When the traction rope 14 falls off, the traction auxiliary rope 16 is pulled by the magnetic clamp block 9, thereby causing the deceleration rod 15 to rotate in the deceleration sleeve 101. Since a deceleration rod 15 is provided on one side The speed plate 1501 and the elastic member, when the deceleration rod 15 rotates, the speed plate 1501 fits and rubs in the deceleration sleeve 101 to reduce the rotation speed of the deceleration rod 15, thereby slowly reducing the falling and sinking speed of the magnetic clamp block 9 and the traction rope 14 through the traction auxiliary rope 16. When the magnetic clamp block 9 and the traction rope 14 gradually stop sinking through the traction auxiliary rope 16, the magnetic clamp block 9 and the traction rope 14 are towed and salvaged through the traction auxiliary rope 16, thereby facilitating the subsequent repair work of the broken traction rope 14.

[0052] Working principle: the hook 1401 on the traction rope 14 is connected to the submarine cable burying machine for traction and movement. When in use, the operation of the driving machine 2 provides power to the transmission 3, and the power conversion of the transmission 3 drives the winch 13 to rotate through the rotating shaft 1302, and the rotating shaft 1302 is transmitted to another winch 13 on one side in the docking support 4, so that the winches 13 on both sides of the docking support 4 are rotated to send cables. Secondly, the power on the rotating shaft 1302 is transmitted to the transmission plate 10 through the transmission belt 12 and the transmission disk 17, so that the transmission plate 10 is used for power conversion and transmission, and the transmission plug shaft 11 is inserted into the transmission plate 10 and the transmission base 6, and the transmission plug shaft 11 is meshed with the reciprocating screw 7 in the transmission base 6 for transmission, and then the power of the transmission plate 10 is transmitted to the reciprocating screw 7 through the transmission plug shaft 11 for rotation.

[0053] The reciprocating slide groove 803 slides on the reciprocating screw rod 7, and then the displacement slider 8 slides back and forth on the reciprocating screw rod 7, so as to extract the traction rope 14 with multiple layers evenly distributed and wound on the capstan 13 for cable delivery. After the cable is buried, the capstan 13 is reversely rotated by reverse driving to recover the traction rope 14. At this time, the displacement slider 8 slides back and forth on the reciprocating screw rod 7, and then the traction rope 14 with multiple layers evenly distributed and wound on the capstan 13 is collected;

[0054] When the ocean current is fast or debris is entangled in the sea, causing the traction rope 14 to gradually bend and stretch, the speed of the winch 13 rotating and sending the cable will gradually increase. At this time, the permanent magnet 1301 on the winch 13 and the inductor 401 on the docking support 4 generate current through electromagnetic induction. When the traction rope 14 is not entangled in debris, the impact force of the ocean current is small. At this time, the normal rotation and cable sending speed of the winch 13 is slow, and the current generated by the permanent magnet 1301 and the inductor 401 is low. The generated current is not enough to drive the electric push rod to make the friction block 402 fit and rub against the rotating shaft 1302, so as to prevent the winch 13 from making the friction block 402 fit and rub against the rotating shaft 1302 when the traction rope 14 is normally sent, thereby avoiding affecting normal use. When the traction rope 14 is entangled in debris in the ocean current, the traction rope 14 is The impact of the ocean current increases the speed of the winch 13 in rotating and sending the cable. At this time, the winch 13 rotates faster, thereby increasing the current generated by the permanent magnet 1301 and the inductor 401. The current is rectified by the rectifier in the inductor 401 and transmitted to the electric push rod in the friction block 402. When the generated current is larger, the force of pushing the friction block 402 out by the electric push rod is larger. At this time, the friction force of the friction block 402 and the rotating shaft 1302 is also larger. The friction block 402 is pushed out by the electric push rod to fit and rub against the rotating shaft 1302, thereby realizing the self-adaptive control of the rotation and cable sending speed of the winch 13 according to the rotation speed of the winch 13, so that the traction rope 14 is gradually straightened under the tension at both ends of the cable laying ship and the burying machine, so as to prevent the traction rope 14 from bending and stretching and changing the preset track range of the cable burying machine.

[0055] When the traction rope 14 is broken by the force, the traction rope 14 is quickly pulled in the displacement slider 8, and then the rotating rod 804 is quickly rotated through the clamping wheel 8041, so that the spring sheet provided on the rotating rod 804 is quickly ejected and pushed into contact with the contact plate 801, and the contact rod 802 is pushed against the support rod 902 in the magnetic clamp block 9 through the docking hole 906 by pushing the contact plate 801. When the support rod 902 is pushed out by the force, the retaining ring 903 is pushed out, and the magnetic clamp block 9 is pulled out. The blocking of the tooth plate 904 by the retaining ring 903 is cancelled. At this time, the tooth plate 904 is inserted into the traction rope 14 under the elastic potential energy of the spring rod 905 to clamp and clamp the traction rope 14, and then the traction rope 14 is clamped in the magnetic clamp block 9. When the traction rope 14 breaks and the tension is large, the magnetic clamp block 9 is separated from the displacement slider 8 through the magnetic joint 805. At this time, the magnetic clamp block 9 is pulled by the traction auxiliary rope 16, so as to prevent the traction rope 14 from falling directly into the sea after breaking.

[0056] The connection with the magnetic clamp block 9 is maintained by the traction auxiliary rope 16, and the broken traction rope 14 is connected by the magnetic clamp block 9, so as to prevent the broken traction rope 14 from falling into the sea and being inconvenient to salvage and maintain. When the traction rope 14 falls off, the traction auxiliary rope 16 is pulled by the magnetic clamp block 9, so that the deceleration rod 15 rotates in the deceleration sleeve 101. Through the rotation of the deceleration rod 15, the deceleration plate 1501 is pressed and rubbed in the deceleration sleeve 101 to reduce the rotation speed of the deceleration rod 15, so that the falling and sinking speed of the magnetic clamp block 9 and the traction rope 14 is slowly reduced by the traction auxiliary rope 16. When the magnetic clamp block 9 and the traction rope 14 gradually stop sinking through the traction auxiliary rope 16, the magnetic clamp block 9 and the traction rope 14 are towed and salvaged by the traction auxiliary rope 16, so as to facilitate the subsequent repair work of the broken traction rope 14.

[0057] After the traction rope 14 is salvaged and repaired, the magnetic clamp 9 is reused by squeezing the tooth plate 904 and pushing the retaining ring 903 back to reset. Then, the spring piece on the rotating rod 804 is returned to its original position, thereby facilitating the reuse of the displacement slider 8.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-drum friction winch for laying a submarine cable, comprising a winch base (1) and a docking support (4), and winches (13) movably mounted on both sides of the docking support (4), and a traction rope (14) wound around the winch (13), and a hook (1401) fixedly mounted on one end of the traction rope (14). Features: A support base (5) is provided at one end of the winch (13) on one side of the docking support (4), and the support base (5) is fixedly connected to the winch base (1); a transmission (3) is provided on the other side of the docking support (4), and the transmission (3) is fixedly connected to the winch base (1); a transmission base (6) is fixedly installed on one side of the winch base (1), the docking support (4) and the support base (5); a reciprocating screw rod (7) is movably installed between the transmission bases (6); a displacement slider (8) is movably installed on the reciprocating screw rod (7), and a traction rope (14) passes through the inner side of the displacement slider (8); A contact rod (802) is inserted and mounted on the inner side of the displacement slider (8), a contact plate (801) is fixedly connected to one side of the contact rod (802), a rotating rod (804) is provided on one side of the contact plate (801), and the rotating rod (804) is movably connected to the displacement slider (8), a clamping wheel (8041) is fixedly connected to the middle of the rotating rod (804), and the clamping wheel (8041) and the traction rope (14) are arranged to fit and clamp; A magnetic clamp (9) is provided on one side of the displacement slider (8), and fixed rods (901) are fixedly connected to the inner sides of the magnetic clamp (9), and a support rod (902) is movably installed in the middle of the fixed rod (901), and one side of the support rod (902) is arranged to fit with the contact rod (802), and a retaining ring (903) is embedded in the inner side of the magnetic clamp (9), and the support rod (902) is symmetrically attached to the two sides of the retaining ring (903), and a tooth plate (904) is provided at one end of the retaining ring (903), and the tooth plate (904) is movably connected to the magnetic clamp (9), and a spring rod (905) is provided on one side of the tooth plate (904), and the spring rod (905) is embedded and fixedly connected to the magnetic clamp (9); The upper and lower ends of the displacement slider (8) are both provided with reciprocating slide grooves (803), and the reciprocating slide grooves (803) and the reciprocating screw rod (7) are nested and movably connected, one side of the displacement slider (8) is fixedly connected with a magnetic suction joint (805), and the magnetic suction clamp (9) is magnetically connected to the displacement slider (8) via the magnetic suction joint (805); A docking hole (906) is provided on one side of the magnetic clamp block (9), and the contact rod (802) is arranged to be closely connected to the support rod (902) through the docking hole (906).

2. A multi-drum friction winch for laying a submarine cable according to claim 1, Features: A drive machine (2) is fixedly connected to one side of the articulated vehicle base (1), and the drive machine (2) and the transmission (3) are transmission-connected. A transmission plate (10) is fixedly mounted on one side of the transmission (3), and a transmission plug shaft (11) is movably mounted on the lower end of the transmission plate (10), and the transmission plug shaft (11) is transmission-connected in a transmission base (6).

3. A multi-drum friction winch for laying a submarine cable according to claim 1, Features: Permanent magnets (1301) are equidistantly mounted around the inner side of the capstan (13), and rotating shafts (1302) are fixedly connected in the middle of the capstans (13) on both sides of the docking support (4), and the rotating shafts (1302) on the capstan (13) on one side are in a mating transmission connection with the docking support (4), and the rotating shafts (1302) on the capstan (13) on the other side are in a mating transmission connection with the transmission (3).

4. A multi-drum friction winch for laying a submarine cable according to claim 2, Features: A transmission disc (17) is fixedly mounted on one side of the transmission plate (10), a transmission belt (12) is arranged around the outer side of the transmission disc (17), and the transmission disc (17) is transmission-connected to the rotating shaft (1302) via the transmission belt (12).

5. A multi-drum friction winch for laying a submarine cable according to claim 3, Features: An inductor coil (401) is provided on the inner side of the permanent magnet (1301), and the inductor coil (401) is fixedly connected to the docking support (4); a friction block (402) is embedded in the middle of the inductor coil (401), and an electric push rod electrically connected to the inductor coil (401) is provided on the inner side of the friction block (402).

6. A multi-drum friction winch for laying a submarine cable according to claim 1, Features: A reduction sleeve (101) is fixedly connected to both sides of one end of the winch base (1), a reduction rod (15) is movably mounted in the middle of the reduction sleeve (101), a reduction plate (1501) is mounted in one end of the reduction rod (15), an elastic member is provided inside the reduction plate (1501), and the elastic member is fixedly connected to the reduction rod (15).

7. A multi-drum friction winch for laying a submarine cable according to claim 6, Features: The deceleration sleeve (101) and the deceleration plate (1501) are arranged to be nested and fit together for movement, a traction auxiliary rope (16) is wound around the outer side of the deceleration rod (15), and the traction auxiliary rope (16) and the magnetic clamping block (9) are arranged to be connected by a buckle.

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