Adjustable cutting depth submarine cable armoring quick stripping device

Abstract

The application provides a submarine cable armoring quick stripping device with adjustable cutting depth, which comprises a support, a positioning and clamping device and a cutting device. The support is annular and hollow, and a plurality of positioning and clamping devices are arranged on the middle annular surface of the support. The cutting device is arranged on the support. The cutting depth can be adjusted, and the cutting device can be controlled to cut the specified depth of the annular surface at the outer annular surface and the coaxial center of the submarine cable according to the thickness of the tarpaulin and steel wire armor of the different submarine cables. The device can be reliably used by construction workers to quickly cut off the tarpaulin and steel wire armor of the submarine cable without damaging the submarine cable core, thereby improving the construction efficiency, avoiding the problem of not being able to control the cutting depth by using other equipment, eliminating the worry of needing to make a submarine cable intermediate joint after damaging the submarine cable core, and avoiding the problems of time-consuming and laborious and high maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of wire and cable stripping technology, and in particular to a rapid stripping device for submarine cable armor with adjustable cutting depth. Background Technology

[0002] In recent years, offshore wind power has developed rapidly in deep and remote waters. The full-capacity grid connection of various offshore wind farms is of great significance for alleviating environmental pressure, promoting green economic development, upgrading the energy structure and optimizing industrial layout, and achieving the goal of "carbon peaking and carbon neutrality". However, due to complex sea conditions and limited offshore operation windows (i.e., construction time), construction has become very difficult. Cable laying is a crucial link connecting various wind turbine units, substations and land, and is a key construction link for achieving full-capacity grid connection.

[0003] When the submarine cable enters the transition section of the wind turbine foundation via a "J"-shaped cable protection pipe with a diameter larger than the cable itself, which is fixed to the foundation, a certain length of cable termination head needs to be reserved for subsequent operation and maintenance. Therefore, the cable is pulled into the foundation transition section for about 25 meters. However, due to the confined and narrow space of the foundation transition section, the cable needs to be pulled out (about 3 meters) and stripped before entering. Then, 4 to 5 workers carry the stripped cable core along the inner wall of the circular foundation transition section and coil it (i.e., cable coiling). Secondly, in order not to damage the cable core, the cable stripping is usually done by first using a utility knife to remove the cable tarpaulin and then using wire cutters to cut the cable steel wire armor. The above stripping methods result in low efficiency in pulling the cable into the foundation transition section and cannot effectively utilize the valuable construction window.

[0004] The existing technology of using utility knives and handheld cutting tools to peel off the outer sheath and steel armor has the following drawbacks: First, it is labor-intensive. The outer sheath of high-voltage cables is thick, and a utility knife requires considerable force to be effective, resulting in high labor intensity and low work efficiency. Second, it poses significant safety hazards. The cables are hard and often cylindrical, making them prone to cuts. Furthermore, the numerous sharp points and edges of the steel armor can easily scratch the skin. Third, the cable structure is complex, especially the armor layer, which is very hard. When cutting manually with tools such as electrician's knives or saws, it is easy to cause inconsistent cut depths in the armor layer. Over-cutting can damage the inner sheath and insulation layer of the cable, while under-cutting may leave tangled threads that need to be removed. Therefore, these operations require a high level of experience from the operators and are time-consuming and difficult.

[0005] Therefore, it is necessary to design a precision stripping tool for armored cables that can achieve 360-degree precise cutting of the protective layer outside the cable armor, reduce damage to the inner sheath and insulation layer, and ultimately achieve convenient operation, save time and effort, achieve good stripping effect, improve work efficiency, and increase safety factor. Summary of the Invention

[0006] This invention addresses the problem that the efficiency of stripping the armor in the middle of submarine cables still needs improvement in the existing technology, and provides a reasonable, convenient and efficient adjustable cutting depth rapid stripping device for submarine cable armor.

[0007] The present invention provides a rapid stripping device for submarine cable armor with adjustable cutting depth, comprising: a bracket, a positioning clamping device and a cutting device. The bracket is annular and hollow, and a plurality of the positioning clamping devices are provided on the central annular surface. The cutting device is disposed on the bracket.

[0008] Preferably, the bracket includes a plurality of sub-brackets connected end to end in sequence, and a pair of fixing plates are provided opposite to each other at the beginning and end of the bracket. Fasteners are provided on the fixing plates to realize the opening and closing of the two fixing plates.

[0009] Preferably, the fastener is a bolt or a rope.

[0010] Preferably, the positioning and clamping device includes: an arc-shaped clamping plate, an adjusting rod, an adjusting sleeve, and an elastic element. One end of the arc-shaped clamping plate is hinged to the annular surface in the middle of the bracket. The adjusting rod is sleeved in the adjusting sleeve, and the elastic element is provided between the two. One end of the adjusting rod is hinged to the middle of the arc-shaped clamping plate, and the other end is hinged to the annular surface in the middle of the bracket.

[0011] Preferably, the elastic element is a spring or a tension spring.

[0012] Preferably, the outer ring surface of the adjusting sleeve is provided with a raised strip or a raised block.

[0013] Preferably, a fine-tuning positioning device is provided between the outer side of the adjusting rod and the end of the adjusting sleeve, the other end of the adjusting sleeve is sleeved onto one end of the positioning rod, and the other end of the positioning rod is hinged to the annular surface in the middle of the bracket.

[0014] Preferably, the fine-tuning positioning device includes: a splicing nut, a trigger plate, a control cam, a control positioning groove, a tightening member, a control handle, and a threaded adjusting rod. The splicing nut includes an upper half nut and a lower half nut, one end of which is hinged to one end of the adjusting sleeve, and the other end is respectively connected to one of the trigger plates. The threaded parts in the middle of the two half nut are connected to the threaded adjusting rod. The tightening member is provided on the outer side between the trigger plates. The control cam is provided on the inner side of one of the trigger plates through a bushing. The control handle is provided at the end of the shaft of the control cam. The control positioning groove that cooperates with the control cam is provided on the inner side of the other trigger plate.

[0015] Preferably, the control positioning groove is an isosceles triangular cavity or an arc-shaped cavity.

[0016] Preferably, the cutting device is connected to the bracket via a sliding device. The cutting device is a cutting machine. The sliding device includes a sliding bracket, a sliding connector, a manual bolt, and a depth adjustment slide plate. The sliding bracket has multiple rows of sliding connectors on one side, which are embedded in an annular groove on the bracket. The sliding bracket has multiple manual bolts on the other side. The depth adjustment slide plate has a groove in the middle and graduations on its side. The manual bolts fasten the depth adjustment slide plate to the sliding bracket through the groove. The cutting machine is located on the outer side of the lower end of the depth adjustment slide plate.

[0017] Compared with existing technologies, the adjustable cutting depth submarine cable armor rapid stripping device of the present invention has the following advantages: the cutting depth can be adjusted, and the cutting device can be controlled to achieve a specified depth of annular cutting at the outer ring surface and coaxial with the submarine cable axis according to the thickness of the tarpaulin and steel wire armor wrapped in different submarine cables. Construction workers can reliably use this device to quickly remove the tarpaulin and steel wire armor of the submarine cable without damaging the submarine cable core, thereby improving construction efficiency, avoiding the use of other equipment to control the cutting depth, eliminating the worry of having to make submarine cable intermediate joints after damaging the submarine cable core, and avoiding the phenomenon of time-consuming, labor-intensive and high maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the adjustable cutting depth rapid stripping device for submarine cable armor according to an embodiment of the present invention;

[0020] Figure 2 This is an embodiment of the present invention. Figure 1 Enlarged structural diagram at point A (in Chinese text);

[0021] Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged structural diagram at point B;

[0022] Figure 4 This is a side view of the sliding bracket inside the sliding device according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the depth adjustment slide plate inside the sliding device according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the adjusting sleeve according to an embodiment of the present invention;

[0025] Figure 7 This is one of the structural schematic diagrams of the adjusting rod according to an embodiment of the present invention;

[0026] Figure 8 This is one of the structural schematic diagrams of the positioning and clamping device according to an embodiment of the present invention;

[0027] Figure 9 This is a second schematic diagram of the structure of the adjusting rod according to an embodiment of the present invention;

[0028] Figure 10 This is a second schematic diagram of the positioning and clamping device according to an embodiment of the present invention;

[0029] Figure 11 This is a front view schematic diagram of the fine-tuning positioning device according to an embodiment of the present invention;

[0030] Figure 12 This is a side view of the fine-tuning positioning device according to an embodiment of the present invention;

[0031] Figure 13 This is a schematic diagram of the structure of the control positioning groove according to an embodiment of the present invention;

[0032] Figure 14 This is one of the schematic diagrams showing the working state of the fine-tuning positioning device according to an embodiment of the present invention;

[0033] Figure 15 This is the second schematic diagram of the working state of the fine-tuning positioning device according to an embodiment of the present invention;

[0034] Figure 16 This is a schematic diagram of the structure of the control handle and control cam according to an embodiment of the present invention;

[0035] Figure 17 This is a schematic diagram of the structure of the bushing according to an embodiment of the present invention;

[0036] Figure 18 This is a schematic diagram illustrating an application scenario of an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1: Support frame; 2: Cutting device; 3: Positioning and clamping device; 4: Submarine cable; 5: Hinge; 6: Suction cylinder; 7: J-type submarine cable protection tube; 8: Main leg; 9: Foundation transition section;

[0039] 1-1: Sub-bracket; 1-2: Groove; 1-3: Fixing plate; 1-4: Bolt;

[0040] 2-1: Sliding connector; 2-2: Sliding bracket; 2-3: Depth adjustment slide plate; 2-4: Manual bolt; 2-5: Slide groove; 2-6: Cutting machine; 2-7: Scale;

[0041] 3-1: Adjusting sleeve; 3-2: Spring; 3-3: Adjusting rod; 3-4: Arc-shaped clamp; 3-5: Tension spring; 3-6: Raised bar; 3-7: Fine-tuning positioning device; 3-8: Positioning rod;

[0042] 3-7-1: Assembled nut; 3-7-2: Trigger plate; 3-7-3: Magnet; 3-7-4: Control cam; 3-7-5: Bushing; 3-7-6: Control handle; 3-7-7: Control positioning groove. Detailed Implementation

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] like Figures 1-3As shown, this embodiment provides a submarine cable armor quick stripping device with adjustable cutting depth, including a bracket 1, a positioning clamping device 2 and a cutting device 3. The bracket 1 includes multiple sub-brackets 1-1 that are hinged to each other end to end. The sub-brackets 1-1 wrap around the submarine cable and finally form a complete ring (or square).

[0047] The bracket 1 preferably consists of 2-8 solid or hollow sub-brackets 1-1. A pair of fixing plates 1-3 are arranged opposite each other at the first and last ends of the bracket 1. Fasteners are provided on the fixing plates 1-3 to enable the opening and closing of the two fixing plates 1-3. The fasteners are bolts 1-4 or pull ropes.

[0048] The fixing plate 1-3 has holes, and the bolts 1-4 can be manual bolts to easily lock the positions of multiple sub-brackets 1-1. The bolts 1-4 can be replaced with pull ropes, which can be loosened or wrapped to open and close the two fixing plates 1-3.

[0049] The bracket 1 has a hollow annular center, and multiple positioning and clamping devices 2 are arranged in a ring on the central annular surface. The bracket 1 is also equipped with a cutting device 3.

[0050] The positioning and clamping device 2 includes an arc-shaped clamping plate 3-4, an adjusting rod 3-3, an adjusting sleeve 3-1, and a spring 3-2. One end of the arc-shaped clamping plate 3-4 is hinged to the annular surface in the middle of the bracket 1. The adjusting rod 3-3 is sleeved inside the adjusting sleeve 3-1, and an elastic element is provided between the two. One end of the adjusting rod 3-3 is hinged to the middle of the arc-shaped clamping plate 3-4, and the other end is hinged to the annular surface in the middle of the bracket 1.

[0051] like Figures 5-10 As shown, the positioning and clamping device 2 controls the movement of the arc-shaped clamping plate 3-4 by adjusting the extension and retraction of the interlocking adjusting sleeve 3-1 and adjusting rod 3-3 under the action of spring 3-2, thereby achieving the pre-positioning of the bracket on the outer circumference of the submarine cable.

[0052] At the beginning of construction, the sub-support 1-1 is opened and fitted onto the submarine cable to be cut. Then, the sub-support 1-1 is locked to form a support that can rotate around the submarine cable. At this time, the positioning clamping device 2 achieves telescopic movement through the interlocking adjusting sleeve 3-1 and adjusting rod 3-3 under the action of tension spring 3-5, realizing the pre-clamping of the submarine cable's outer surface. At this time, the axis of the support 1 and the axis of the submarine cable to be cut are not coaxial. It is necessary to wait for the fine-tuning positioning device 3-7 to be adjusted in subsequent operations to make them coaxial before continuing to cut the submarine cable armor at a fixed depth.

[0053] The elastic element is either a spring 3-2 or a tension spring 3-5, which is located between the inner side of the end of the adjusting rod 3-3 and the inner side of the opposing adjusting sleeve 3-1. This ensures that the adjusting rod 3-3 and the adjusting sleeve 3-1 are connected in a coordinated manner, ultimately achieving a uniform stretching effect. The outer ring surface of the adjusting sleeve 3-1 has a raised strip 3-6 or a protrusion, making it easier to rotate the adjusting sleeve 3-1 by hand.

[0054] like Figures 11-17 As shown, a fine-tuning positioning device 3-7 is provided between the outer side of the adjusting rod 3-3 and the adjusting sleeve 3-1 to which it is sleeved. The other end of the adjusting sleeve 3-1 is sleeved on one end of the positioning rod 3-8, and the other end of the positioning rod 3-8 is hinged to the annular surface in the middle of the bracket 1.

[0055] The fine-tuning positioning device 3-7 includes a splicing nut 3-7-1, a trigger plate 3-7-2, a control cam 3-7-4, a control positioning groove 3-7-7, a tightening component, a control handle 3-7-6, and a threaded adjusting rod 3-3. The splicing nut 3-7-1 is divided into an upper half nut and a lower half nut, one end of which is hinged to one end of the adjusting sleeve 3-1, and the other end is connected to a trigger plate 3-7-2. The threaded connection between the two half nut and the threaded adjusting rod 3-3 is connected. A tightening component is provided on the outer side between the trigger plates 3-7-2. A control cam 3-7-4 is provided on the inner side of one trigger plate 3-7-2 through a bushing 3-7-5. A control handle 3-7-6 is provided at the end of the shaft of the control cam 3-7-4. A control positioning groove 3-7-7 that mates with the control cam 3-7-4 is provided on the inner side of the other trigger plate 3-7-2. The control positioning groove 3-7-7 is an isosceles triangular cavity or an arc-shaped cavity. The central part of this structure is the most concave, which can stably hold the control cam 3-7-4 shaft in the raised state, thereby ensuring the lifting action of the control cam 3-7-4 shaft on the two trigger plates 3-7-2.

[0056] The working principle of the fine-tuning positioning device 3-7 is as follows: The spliced ​​nut 3-7-1 is obtained by symmetrically cutting an ordinary nut. One end of it is hinged by a connector, and the other end is connected to a trigger plate 3-7-2 that can be opened and closed. The separation of the trigger plate 3-7-2 is achieved by the push of the other trigger plate 3-7-2 by the control cam 3-7-4 set on one of the trigger plates 3-7-2. The control positioning groove 3-7-7 can keep the long axis side of the cam on the camshaft locked in it and maintain the lifting action of the two trigger plates 3-7-2. The two ends of the control cam 3-7-4 shaft are positioned and connected to the inner side of one trigger plate 3-7-2 by the bushing 3-7-5. The outer end of the shaft is provided with a control handle 3-7-6. The control handle 3-7-6 is parallel to the long axis of the cam on the camshaft, which makes it easy for people to observe the position of the cam and is less likely to cause confusion in the control operation due to limited vision.

[0057] The bonding process of the trigger plates 3-7-2 is achieved by setting tightening parts on the two trigger plates 3-7-2 respectively to make the two plates close together.

[0058] When the splicing nut 3-7-1 can engage the thread on the outside of the adjusting rod 3-3, the adjusting sleeve 3-1 can be provided with a protrusion 3-6. At this time, when the adjusting sleeve 3-1 is rotated, the connection points at both ends of the adjusting rod 3-3 and the positioning rod 3-8 can be rotated. The rotation can change the length of the adjusting rod 3-3 inside it, and finally realize the secondary expansion and contraction of the adjusting rod 3-3 outside the adjusting sleeve 3-1. This expansion and contraction can compensate for the excessive and under-compression deformation of the upper and lower arc-shaped clamps 3-4 caused by the support and cutting device under the action of gravity. Finally, the cutting trajectory of the cutting machine 2-6 on the support and the axis of the submarine cable are nearly coaxial, and the armor and submarine cable tarpaulin are cut at the same depth.

[0059] When the splicing nut 3-7-1 cannot engage the thread on the outside of the adjusting rod 3-3, rotating the outside of the adjusting sleeve 3-1 will still allow the connecting points of the adjusting rod 3-3 and the positioning rod 3-8 at both ends to rotate. However, the thread between the splicing nut 3-7-1 and the adjusting rod 3-3 cannot change the length of the adjusting rod 3-3 inside it, and the secondary extension and retraction of the adjusting rod 3-3 outside the adjusting sleeve 3-1 cannot be achieved. At this time, the excessive and under-pressure deformation of the upper and lower arc-shaped clamps 3-4 caused by the support 1 and the cutting device 3 under the action of gravity will eventually be reflected in the support 1. The cutting trajectory of the cutting machine 2-6 will deviate slightly downward from the axis of the submarine cable, and the armor and submarine cable tarpaulin cannot be cut to the same depth.

[0060] like Figures 15-16 As shown, the tightening element is a heteronymous magnet 3-7-3 or a tension spring 3-5 that attract each other, wherein the two ends of the heteronymous magnet 3-7-3 or the tension spring 3-5 are respectively located on the outside of the two trigger plates 3-7-2.

[0061] like Figures 4-5 As shown, the cutting device 3 is connected to the bracket via a sliding device, and the cutting device 3 uses a cutting machine 2-6. The sliding device includes a sliding bracket 2-2, a sliding connector 2-1, manual bolts 1-4, and a depth adjustment slide plate 2-3. The sliding bracket 2-2 has multiple rows of sliding connectors 2-1 on one side, which are fitted into annular grooves 1-2 on the bracket. The other side of the sliding bracket 2-2 has multiple manual bolts 1-4. The depth adjustment slide plate 2-3 has a groove 2-5 in the middle and graduations 2-7 on its side. The manual bolts 1-4 secure the depth adjustment slide plate 2-3 to the sliding bracket 2-2 via the groove 2-5. The cutting machine 2-6 is located on the outer side of the lower end of the depth adjustment slide plate 2-3.

[0062] The groove 1-2 is a structure that restricts the cutting machine 2-6 in the cutting device from entering the specified depth for annular cutting. A sliding connector 2-1, which is arc-shaped, is provided on one side of the sliding bracket 2-2. It can slide radially within the groove 1-2, thereby driving the cutting machine 2-6 to rotate in annular motion. A manual bolt 1-4 is provided on the other side of the sliding bracket 2-2 to engage with the groove 2-5 on the depth adjustment slide plate 2-3. By referring to the scale 2-7 on the side of the depth adjustment slide plate 2-3 and the displacement of a reference point, the depth adjustment slide plate 2-3 can be slid or tightened relative to the sliding bracket 2-2, directly determining the cutting depth of the cutting machine 2-6 on the depth adjustment slide plate 2-3.

[0063] The cutting machine 2-6 is powered by a battery or mains power. When powered by mains power, sufficient wire length needs to be reserved to prevent it from getting tangled on the submarine cable and causing it to be pulled and locked, which would affect the rotation of the support around the submarine cable. When rotating, it can cut in sections and rotate alternately in counterclockwise and clockwise directions.

[0064] The working process of the cutting machine 2-6 is as follows: first, place the cutting machine 2-6 on the vertical side of the upper part, loosen the manual bolt 1-4, so that the cutting blade of the cutting machine 2-6 contacts the outer ring surface of the submarine cable, and at this time, record the corresponding value of the scale 2-7 on the side of the depth adjustment slide 2-3 and the reference point. Then turn on the cutting machine 2-6 and manually control the depth adjustment slide 2-3 to descend to the specified depth for different submarine cables. After reaching the specified depth for cutting, tighten the manual bolt 1-4 to lock the depth adjustment slide 2-3 so that it cannot move. At this time, rotate the support one revolution, and the cutting machine 2-6 will complete a circumferential cut. Then move it 1 to 3 meters to one side of the submarine cable and rotate it again (in the opposite direction) to cut once more. Then move it 1 to 3 meters to one side of the submarine cable and rotate it again (in the opposite direction) to cut once more. While cutting, use another cutting machine 2-6 to cut the submarine cable axially several times according to the thickness of the tarpaulin. Then use another cutting machine or utility knife to cut open the cable tarpaulin and slowly peel off the tarpaulin. At this time, the armor can be removed smoothly. There is no high-risk cutting near the cable core throughout the process, which greatly reduces the damage to the cable core caused by overcutting and the compensation work of secondary wrapping, and prevents the construction effect of being too hasty.

[0065] like Figure 18 As shown, the working scene of the present invention can be located at the base transition section 9. The base transition section 9 is connected to the suction cylinder 6 through the main leg 8. The suction cylinder 6 is inserted into the seabed. The submarine cable 4 is pulled into the base transition section 9 through the J-shaped submarine cable protection tube 7 set in the main leg 8. Then, while pulling, the cable is stripped. Then, the worker lifts the submarine cable core with the submarine cable armor stripped off and coils it along the inner wall of the circular base transition section 9 (i.e., coiling the cable).

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable depth of cut submarine cable armour stripping device, characterised in that, The utility model relates to a cutting device for cutting the pipe, and the cutting device comprises a support (1), a positioning and clamping device (2) and a cutting device (3), the support (1) is annular hollow, and a plurality of positioning and clamping devices (2) are arranged on the middle annular surface of the support (1), and the cutting device (3) is arranged on the support (1). The positioning and clamping device (2) comprises an arc-shaped clamping plate (3-4), an adjusting pull rod (3-3), an adjusting sleeve (3-1) and an elastic member, one end of the arc-shaped clamping plate (3-4) is hinged to the annular surface of the middle part of the support (1), the adjusting pull rod (3-3) is sleeved in the adjusting sleeve (3-1), and the elastic member is arranged between the adjusting pull rod (3-3) and the adjusting sleeve (3-1), one end of the adjusting pull rod (3-3) is hinged to the middle part of the arc-shaped clamping plate (3-4), and the other end is hinged to the annular surface of the middle part of the support (1). A fine positioning device (3-7) is arranged between the outer side surfaces of the ends of the adjusting pull rod (3-3) and the adjusting sleeve (3-1), one end of a positioning pull rod (3-8) is sleeved to the other end of the adjusting sleeve (3-1), and the other end of the positioning pull rod is hinged to the annular surface of the middle part of the support (1). The fine positioning device (3-7) comprises a split nut (3-7-1), a trigger plate (3-7-2), a control cam (3-7-4), a control positioning groove (3-7-7), a tightening member, a control handle (3-7-6) and a threaded adjusting pull rod (3-3), the split nut (3-7-1) comprises an upper half nut and a lower half nut, one end of the upper half nut and the lower half nut is hinged to one end of the adjusting sleeve (3-1), the other end of the upper half nut and the lower half nut is connected with one trigger plate (3-7-2) respectively, the threaded adjusting pull rod (3-3) is connected with the middle parts of the upper half nut and the lower half nut in a threaded manner, the outer side between the trigger plates (3-7-2) is provided with the tightening member, the inner side surface of one trigger plate (3-7-2) is provided with the control cam (3-7-4) through a shaft sleeve (3-7-5), the end of the shaft of the control cam (3-7-4) is provided with the control handle (3-7-6), and the inner side surface of the other trigger plate (3-7-2) is provided with the control positioning groove (3-7-7) matched with the control cam (3-7-4). The support (1) comprises a plurality of branch supports (1-1) connected in sequence, a pair of fixed plates (1-3) is arranged at the opposite ends of the support (1), a fastener is arranged on the fixed plate (1-3), and the fastener is used for realizing the opening and closing of the two fixed plates (1-3).

2. An adjustable cut depth submarine cable armour stripping device according to claim 1, characterised in that, The fastener is a bolt (1-4) or a pull rope.

3. An adjustable cut depth submarine cable armour stripping device according to claim 2, characterised in that, The elastic member is a spring (3-2) or a tension spring (3-5).

4. An adjustable cut depth submarine cable armour stripping device according to claim 1, characterised in that, A convex strip (3-6) or a convex block is arranged on the outer annular surface of the adjusting sleeve (3-1).

5. An adjustable cut depth submarine cable armour stripping device according to claim 1, characterised in that, The control positioning groove (3-7-7) is an isosceles triangle cavity or an arc cavity.

6. An adjustable cut-depth submarine cable armour stripping device according to claim 1, characterised in that, ​ 7. An adjustable cut depth submarine cable armour stripping device according to claim 1, characterised in that, The cutting device (3) is connected with the support (1) through a sliding device, the cutting device (3) adopts a cutting machine (2-6), and the sliding device comprises a sliding support (2-2), sliding plug-in connectors (2-1), manual bolts (2-4) and a depth adjusting sliding plate (2-3), a plurality of sliding plug-in connectors (2-1) are arranged on one side of the sliding support (2-2), the sliding plug-in connectors (2-1) are embedded in annularly arranged grooves (1-2) on the support (1), a plurality of manual bolts (2-4) are arranged on the other side of the sliding support (2-2), a sliding groove (2-5) is arranged in the middle of the depth adjusting sliding plate (2-3), a scale (2-7) is arranged on the side edge of the depth adjusting sliding plate (2-3), the depth adjusting sliding plate (2-3) is fastened on the sliding support (2-2) through the sliding groove (2-5), and the cutting machine (2-6) is arranged outside the lower end of the depth adjusting sliding plate (2-3).

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