Power shielding cable twisting equipment for top drive of oil platform and production process

Abstract

The invention relates to the technical field of cables, and discloses a power shielding cable stranding device for a top drive of an oil platform and a production process, the power shielding cable stranding device comprises a supporting assembly, the upper part of the supporting assembly is provided with a wire feeding assembly, a stranding assembly, a guide assembly and a traction assembly, and the wire feeding assembly is located at the side part of the upper part of the supporting assembly; the stranding assembly, the guiding assembly and the traction assembly are transversely arranged on the upper portion of the supporting assembly along the supporting assembly, the supporting assembly comprises a bottom plate, and a first driving motor is installed on the upper portion of the bottom plate. By arranging an adjusting plate, the problem that a stranded wire is locally bent due to improper storage and carrying or material rigidity difference can be solved. Precise correction is achieved by sensing local deformation of the stranded wire and applying extrusion and drawing force, the situation that the cross section structure of the cable is not uniform due to deflection of a bent part after stranding is avoided, the structural strength of the cable is guaranteed, electric energy loss is reduced, the power transmission efficiency is improved, and the structural stability and transmission performance of the stranded cable are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, in particular to a power shielded cable twisting device and a production process for a top drive of an oil platform. Background Art

[0002] In modern society, cables are widely used in various fields as the core carriers of power transmission, signal communication, and equipment control. In the power sector, power cables play a key role in transmitting electricity from power plants to substations and then distributing it to various power-consuming areas. High-voltage power cables can withstand high voltages, enabling long-distance, high-capacity power transmission and ensuring large-scale electricity consumption in cities and industrial areas. The stranding of cable cores is a key step in the cable manufacturing process, and cable stranding equipment plays a vital role in this process. A stranding machine, a stranding machine widely used for various soft / hard conductors and electronic wires, can twist multiple single conductors into a strand to meet the wire processing requirements.

[0003] Top drives, or drilling rigs driven from the top, are a crucial cutting-edge technology and equipment in today's oil drilling industry, essential for deep and complex well construction. The power cables and associated components used on oil platform top drives are specialized transmission lines that provide electrical energy to the top drive transmission system. They connect the control console and the top drive, serving as the primary power element for the entire top drive system. Twisting is a key process in the production of these cables.

[0004] The Chinese patent with publication number CN116313302B discloses a cable core twisting device, including a base, on the upper surface of which a twisting assembly, a winding plate, a first guide disk and a second guide disk are installed in sequence from front to back; the first guide disk and the second guide disk are fixedly connected by a connecting tube; the surfaces of the first guide disk and the second guide disk are both provided with branching holes; there are multiple branching holes, and a guide wheel is rotatably connected to the inside of the branching hole on the surface of the second guide disk. Under the action of the guide wheel on the surface of the second guide disk, not only can the positioning effect of the cable be improved, but also the bending degree of the cable during the twisting process can be reduced, and the problem of the cable breaking at the bending part due to excessive force during the twisting process can be avoided.

[0005] According to the above-mentioned prior art, during the twisting process of cable cores, when a single or multiple strands of wire are subjected to improper operation during storage and transportation, or there are certain rigidity differences in their own materials before entering the twisting equipment, local bending is prone to occur. After these strands of wire with local bending deformation enter the twisting process, as the twisting equipment operates, under the action of torsional force, the bent parts will gradually shift toward the outer surface of the cable. After the locally bent strands are twisted to the outer surface, the structural distribution of the cable cross section will be uneven, thereby affecting the overall structural strength of the cable. Secondly, it will also increase the power loss and affect the power transmission efficiency.

[0006] Therefore, it is necessary to solve the above problems through the power shielded cable twisting equipment and production process for oil platform top drive. Summary of the Invention

[0007] The object of the present invention is to provide a power shielded cable twisting device and a production process for oil platform top drive, so as to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a shielded power cable stranding device for a top drive on an oil platform, comprising a support assembly, wherein a wire feeding assembly, a stranding assembly, a guide assembly, and a traction assembly are respectively provided on the upper portion of the support assembly, wherein the wire feeding assembly is located on the side of the upper portion of the support assembly, and the stranding assembly, the guide assembly, and the traction assembly are arranged transversely along the upper portion of the support assembly;

[0009] The support assembly includes a base plate, a first drive motor is installed on the upper part of the base plate, an output end of the first drive motor is provided with a first pulley, the first pulley is connected to the second pulley through a transmission belt, and a transmission tube is provided on the inner diameter of the second pulley;

[0010] The twisting assembly includes a twisting disk, and two symmetrically arranged adjustment plates are respectively provided on the outer surface of the transmission tube near the twisting disk, and the different surfaces of the two adjustment plates are respectively provided with a first push rod and a second push rod, and the ends of the first push rod and the second push rod away from the adjustment plate are respectively arranged on one side of the twisting disk and the twisting ring, and each of the adjustment plates is provided with an electromagnetic slide rail on the surface, and each adjustment plate is provided with a first slider slidingly provided through the electromagnetic slide rail, and a detection spring is provided on one side of each first slider, and a telescopic rod is provided on the upper part of each first slider, and a second guide wheel is provided at the end of each telescopic rod away from the first slider.

[0011] Preferably, the interior of the stranded disk is fixedly arranged on the outer surface of the transmission tube, and a first guide wheel is provided on the upper part of each adjustment plate. The first guide wheel is located in a mirror image position of the second guide wheel, and the first guide wheel and the second guide wheel are used to clamp and limit the twisted wire. The bottom of each of the first guide wheels is provided with a telescopic rod identical to the one below the second guide wheel, and the end of the telescopic rod away from the first guide wheel is fixedly arranged on the upper part of the adjustment plate, and the first guide wheel and the second guide wheel are at the same height in the initial state.

[0012] Preferably, a return spring is provided below the first guide wheel and the second guide wheel, and one end of each return spring away from the first guide wheel and the second guide wheel is fixedly connected to the top of the adjustment plate, an electromagnet is provided on a side below the first guide wheel and the second guide wheel close to the return spring, and a magnetic block adapted to the electromagnet is provided on a side above the adjustment plate close to the first guide wheel and the second guide wheel;

[0013] When the electromagnet is turned on, the electromagnetic force can be used to drive the two telescopic rods to extend or retract. When the two telescopic rods extend or retract, the corresponding return springs will also be in a compressed or stretched state. The first guide wheel, the second guide wheel, the electromagnetic slide rail, the telescopic rod, the return spring and the electromagnet are all arranged along the four sides of the adjustment plate, thereby achieving fixed limit of multiple strands respectively.

[0014] Preferably, a first turntable is fixedly mounted on the outer surface of the transmission tube, a first support frame is rotatably connected to the outer side of the first turntable, and a bottom of the first support frame is fixedly connected to the surface of the bottom plate. When the first drive motor drives the transmission tube to rotate by the cooperation of the first pulley and the second pulley, the transmission tube can drive the first turntable to rotate on the surface of the first support frame.

[0015] A connecting plate is provided on the side of the first rotating disk away from the first driving motor, a twisting roller is provided inside the connecting plate via a rotating shaft, and a driving device is provided on the end of the rotating shaft away from the twisting roller, and the driving device can drive the twisting roller to rotate;

[0016] The support assembly also includes a transmission seat, the bottom of which is fixedly arranged on the upper surface of the base plate, and the transmission seat is located in the bottom area of the twisting assembly. Two symmetrically arranged pulleys are provided inside the transmission seat, and the outer surfaces of the two pulleys are in contact with the bottom of the twisting assembly.

[0017] Preferably, the wire feeding assembly includes a second support frame, the second support frame is fixed to the upper part of the base plate, the second support frame is located on the left side of the first support frame, a second turntable is provided inside the second support frame which is rotated by a rotating shaft, a cable is wrapped around the outer surface of the second turntable, a third drive motor is provided at either end of the second turntable, an output end of the third drive motor is fixedly connected to one side of the second turntable, the third drive motor can drive the second turntable to rotate, and the third drive motor drives the second turntable to rotate to transport the cable wrapped around the surface of the second turntable along the radial direction of the transmission tube.

[0018] Preferably, the twisting assembly includes a twisting ring and a twisting bracket, the bottom of the twisting bracket is fixedly arranged above the bottom plate, the side of the twisting ring facing the first turntable is fixedly connected to the other end of the connecting plate, a limiting rod is provided on the side of the twisting ring away from the connecting plate, a through hole is opened on the surface of the twisting ring for the twisted wire to pass through, and a guide wheel is provided inside the end of the limiting rod away from the twisting ring, and the outer surface of the guide wheel contacts the twisted wire;

[0019] The guide wheel is used to closely contact the stranded wire and limit the stranded wire during transportation. The number of the limiting rods and guide wheels is consistent with the number of the stranding rollers. The outer surface of the stranding ring is provided with a groove, and the stranding ring contacts the outer surfaces of the two symmetrically arranged pulleys through the outer groove.

[0020] Preferably, the guide assembly includes a guide platform, the bottom of the guide platform is fixedly connected to the surface of the base plate, and three positioning wheels are rotatably provided on the surface of the guide platform. The outer surfaces of the three positioning wheels are in contact with the surface of the cable, and the three positioning wheels are used to guide and position the cables after twisting. The three positioning wheels are arranged on the surface of the guide platform along the radial direction of the transmission tube, and the guide platform is fixed with a fixing rod through the positioning wheel. The three positioning wheels are located in the area between the fixing rod and the guide platform, and the fixing rod is used to fix and limit the positions of the three positioning wheels.

[0021] Preferably, the traction assembly includes a third support frame, a second drive motor is provided on one side of the third support frame, the output end of the second drive motor passes through the fourth support frame and is fixedly connected to the third turntable, the bottom of the fourth support frame is arranged above the base plate close to the third support frame, the second drive motor can drive the third turntable to rotate, and can reel in the cable after twisting.

[0022] The present invention also provides a production process for a power shielded cable for a top drive of an oil platform, comprising:

[0023] S1. First, use the drive motor in the wire feeding assembly to convey the cable along the axial direction of the support assembly, so that the cable enters the support assembly and moves toward the twisting assembly;

[0024] S2. Then, the first drive motor is used to cooperate with the first pulley and the second pulley to drive the first turntable to rotate. When the first turntable rotates, it drives multiple stranding rollers to rotate along with the first turntable. At the same time, the stranded wires on the stranding rollers pass through the first turntable and are transported toward the stranding assembly and intersect with the cable on the stranding assembly. The support assembly cooperates with the stranding assembly so that the multiple stranded wires are wound around the outer circumference of the cable according to the agreed specifications to form a cable core, thereby completing the stranding of the cable.

[0025] S3. Finally, the guide assembly is used to receive the cable after the twisting work is completed, and the surface of the cable is limited and contacted, so that the twisted cable always maintains the specified conveying route and is conveyed in the direction of the traction assembly. Then, the traction assembly is used to reel in the cable core after the twisting is completed, thereby completing the storage of the cable core.

[0026] Technical effects and advantages of the present invention:

[0027] 1. The present invention solves the problem of local bending of stranded wires caused by improper storage or handling or differences in material rigidity by providing an adjustment plate. By sensing the local deformation of the stranded wires and applying extrusion and tension forces, precise correction is achieved, thus avoiding the offset of the bent parts after twisting, which leads to uneven cable cross-sectional structure. This ensures the structural strength of the cable, reduces power loss, improves power transmission efficiency, and ensures the structural stability and transmission performance of the cable after twisting.

[0028] 2. The present invention can accurately detect and thoroughly clean impurities on the surface of the stranded wire through the adjustment plate, sense abnormal pressure caused by impurities through the detection spring on the adjustment plate, and scrape off impurities by using the staggered clamping of the guide wheel and the movement of the adjustment plate. Cooperating with the return control of the stranded wire and the cable, it ensures that the impurity area is completely within the cleaning range, achieves thorough removal, avoids uneven cable diameter caused by impurities, and prevents local high temperature or short circuit caused by impurities in subsequent use, further ensures the stability of the cable structure and the safety of use, and improves the quality and reliability of cable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a front view of the overall structure of the present invention;

[0031] Figure 3 A schematic diagram of the guide platform and related structures in the guide assembly of the present invention;

[0032] Figure 4Schematic diagram of the third support frame and related structures in the traction assembly of the present invention;

[0033] Figure 5 Schematic diagram of the twisting roller and related structures of the present invention;

[0034] Figure 6 This is a schematic diagram of the adjustment plate and related structures of the present invention;

[0035] Figure 7 This is a schematic diagram of the adjustment plate of the present invention in an open state;

[0036] Figure 8 This is a structural schematic diagram of the first guide wheel and the second guide wheel in the conveying working state of the present invention;

[0037] Figure 9 This is a structural schematic diagram of the first guide wheel and the second guide wheel in the correction working state of the present invention;

[0038] Figure 10 This is a structural schematic diagram of the first guide wheel and the second guide wheel in the cleaning working state of the present invention.

[0039] In the figure: 1. Support assembly; 101. Bottom plate; 102. First drive motor; 103. Mounting base; 104. First pulley; 105. Second pulley; 106. First turntable; 107. First support frame; 108. Connecting plate; 109. Stranding roller; 110. Transmission tube; 111. Transmission base; 112. Pulley;

[0040] 2. Wire feeding assembly; 201. Second turntable; 202. Second support frame; 203. Rotating shaft; 204. Cable;

[0041] 3. Twisting assembly; 301. Limit rod; 302. Twisting ring; 303. Guide wheel; 304. Twisted wire; 305. Twisting disc; 306. Twisting bracket; 307. Adjustment plate; 308. First guide wheel; 309. Second guide wheel; 310. First slider; 311. First push rod; 312. Second push rod; 313. Detection spring; 314. Telescopic rod; 315. Return spring; 316. Electromagnet;

[0042] 4. Traction assembly; 401. Third turntable; 402. Third support frame; 403. Second drive motor; 404. Fourth support frame;

[0043] 5. Guide assembly; 501. Guide platform; 502. Positioning wheel; 503. Fixing rod. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] First embodiment

[0046] The present invention provides Figures 1 to 10 The power shielded cable twisting device for the top drive of the oil platform shown in the figure includes a support assembly 1, a wire feeding assembly 2, a twisting assembly 3, a traction assembly 4 and a guide assembly 5, wherein the wire feeding assembly 2, the twisting assembly 3, the traction assembly 4 and the guide assembly 5 are all arranged in sequence above the support assembly 1 in a transverse direction, and the wire feeding assembly 2 transports the cable 204 to the twisting assembly 3 along the radial direction of the support assembly 1 through the driving motor, and the twisting assembly 3 is used to receive the cable 204 and the multiple twisted wires 304 in the support assembly 1 and the wire feeding assembly 2 respectively, and rotates the drive motor to rotate the cable 204 and the twisted wires 304. The equipment twists multiple strands 304 according to fixed specifications on the outer surface of the cable 204, thereby realizing the twisting of the cable, and then uses the guide component 5 to receive the cable 204 that has completed the twisting work from the twisting component 3 and limit the cable 204 to prevent the cable 204 from being offset, causing the subsequent traction component 4 to be misplaced during the process of collecting the cable 204, resulting in a large amount of waste of winding space and thus interrupting the work of winding the cable 204. Finally, the traction component 4 is used in conjunction with the internal rotating power supply equipment to wind up the cable 204 that has completed the twisting work.

[0047] like Figure 2As shown, the support assembly 1 includes a base plate 101, a mounting base 103 is provided on the upper part of the base plate 101, and a first drive motor 102 is fixedly installed on the inner side of the mounting base 103, and a first pulley 104 is provided at the output end of the first drive motor 102, and the first pulley 104 is connected to the second pulley 105 through a transmission belt, and a transmission tube 110 is provided on the inner diameter of the second pulley 105. The first drive motor 102 drives the transmission tube 110 to rotate by the cooperation of the first pulley 104 and the second pulley 105. Secondly, a first turntable 106 is fixedly installed on the outer surface of the transmission tube 110, and the outer side of the first turntable 106 is rotatably connected to the first support frame 107. The bottom of the first support frame 107 is fixedly connected to the surface of the base plate 101. When the first drive motor When 102 uses the cooperation of the first pulley 104 and the second pulley 105 to drive the transmission tube 110 to rotate, the transmission tube 110 can drive the first turntable 106 to rotate on the surface of the first support frame 107. A connecting plate 108 is provided on the side of the first turntable 106 away from the first drive motor 102. The connecting plate 108 is located at the edge of one side of the first turntable 106. Secondly, there are multiple connecting plates 108 and they are circumferentially distributed on the surface of one side of the first turntable 106. A vertically arranged twisting roller 109 is provided inside the connecting plate 108 through a rotating shaft. A driving device is provided at the end of the rotating shaft away from the twisting roller 109. The driving device (not shown in the figure) can drive the twisting roller 109 to rotate. The driving device can be a rotating drive mechanism such as an electric motor.

[0048] The support assembly 1 also includes a transmission seat 111, the bottom of which is fixedly arranged on the upper surface of the base plate 101. The transmission seat 111 is located in the bottom area of the twisting assembly 3. Two symmetrically arranged pulleys 112 are provided inside the transmission seat 111, and the outer surfaces of the two pulleys 112 are in contact with the bottom of the twisting assembly 3.

[0049] The wire feeding assembly 2 includes a second support frame 202, which is fixed to the upper part of the base plate 101. The second support frame 202 is located on the left side of the first support frame 107. The interior of the second support frame 202 is provided with a second turntable 201 which is rotated by a rotating shaft 203. A cable 204 is wound around the outer surface of the second turntable 201. A third drive motor (not shown in the figure) is provided at either end of the second turntable 201. The output end of the third drive motor is fixedly connected to one side of the second turntable 201. The third drive motor can drive the second turntable 201 to rotate. The third drive motor drives the second turntable 201 to rotate to transport the cable 204 wound around the surface of the second turntable 201 along the radial direction of the transmission tube 110, thereby achieving the purpose of wire feeding.

[0050] like Figure 2 and Figure 5As shown, the twisting assembly 3 includes a twisting ring 302 and a twisting bracket 306, the bottom of the twisting bracket 306 is fixedly arranged above the bottom plate 101, wherein the interior of the twisting bracket 306 is provided with a through hole for the stranded wire 304 and the cable 204 to pass through, and a pressure sensor (not shown in the figure) is provided around the through hole, and the side of the twisting ring 302 facing the first turntable 106 is fixedly connected to the other end of the connecting plate 108, and a limiting rod 301 is provided on the side of the twisting ring 302 away from the connecting plate 108, and a through hole for the stranded wire 304 to pass through is opened on the surface of the twisting ring 302, and a guide wheel 303 is provided inside the end of the limiting rod 301 away from the twisting ring 302, and the outer surface of the guide wheel 303 conflicts with the stranded wire 304, and the guide wheel 303 is used to closely contact the stranded wire 304 and control the stranded wire 304 during transportation. Limiting is performed to prevent the stranded wire 304 from being offset during transportation, which affects the quality of the cable core after subsequent twisting. The number of limiting rods 301 and guide wheels 303 is consistent with the number of twisting rollers 109 to ensure that each stranded wire 304 can be guided and limited. The outer surface of the twisting ring 302 is provided with a groove, and the twisting ring 302 contacts the outer surfaces of the two symmetrically arranged pulleys 112 through the outer groove. The twisting bracket 306 is used to receive the delivered stranded wire 304 and cable 204, and at the same time limit the stranded wire 304 and cable 204, and cooperate with the twisting ring 302 to drive multiple strands 304 to rotate along the outer surface of the cable 204, so that multiple strands 304 are twisted to the outer surface of the cable 204 according to specifications and pass through the twisting bracket 306 together.

[0051] like Figure 6As shown, the stranding assembly 3 also includes a stranding disk 305, the interior of the stranding disk 305 is fixedly arranged on the outer surface of the transmission tube 110, and the outer surface of the transmission tube 110 near the stranding disk 305 is respectively provided with two symmetrically arranged adjustment plates 307, and the different surfaces of the two adjustment plates 307 are respectively provided with a first push rod 311 and a second push rod 312, and the ends of the first push rod 311 and the second push rod 312 away from the adjustment plate 307 are respectively arranged on one side of the stranding disk 305 and the stranding ring 302, and each adjustment plate 307 is provided with an electromagnetic slide rail on the surface, and each adjustment plate 307 is slidably provided with a first slider 310 through the electromagnetic slide rail, and each first slider 310 is provided with a detection spring 313 on one side, and each detection spring 313 is provided with a displacement sensor on the side close to the electromagnetic slide rail (as shown in the figure). (not shown), a telescopic rod 314 is provided on the upper part of each first slider 310, and a second guide wheel 309 is provided at the end of each telescopic rod 314 away from the first slider 310, and a first guide wheel 308 is provided on the upper part of each adjustment plate 307. The first guide wheel 308 is located at a mirror image position of the second guide wheel 309. The first guide wheel 308 and the second guide wheel 309 are used to clamp and limit the twisted wire 304 to avoid deformation of the cable 204 after twisting due to deviation of the twisted wire 304 during the twisting process. The bottom of each first guide wheel 308 is provided with a telescopic rod 314 identical to that below the second guide wheel 309, and the end of the telescopic rod 314 away from the first guide wheel 308 is fixedly set on the upper part of the adjustment plate 307, and the first guide wheel 308 and the second guide wheel 309 are at the same height in the initial state.

[0052] like Figure 7 As shown, a return spring 315 is provided below the first guide wheel 308 and the second guide wheel 309, and one end of each return spring 315 away from the first guide wheel 308 and the second guide wheel 309 is fixedly connected to the top of the adjustment plate 307, and an electromagnet 316 is provided on the side below the first guide wheel 308 and the second guide wheel 309 close to the return spring 315, and a magnetic block adapted to the electromagnet 316 is provided on the side above the adjustment plate 307 close to the first guide wheel 308 and the second guide wheel 309, and when the electromagnet 316 is turned on, it can use electromagnetic force to drive the two telescopic rods 314 to extend or retract. When the two telescopic rods 314 extend or retract, the corresponding return spring 315 will also be in a compressed or stretched state.

[0053] The first guide wheel 308, the second guide wheel 309, the electromagnetic slide rail, the telescopic rod 314, the return spring 315 and the electromagnet 316 are all arranged along the four sides of the adjustment plate 307, so as to achieve fixed limiting of multiple strands 304 respectively, to ensure that the strands 304 maintain appropriate positions and data during the twisting process, to avoid the deviation or misalignment of the strands 304 affecting the quality of the cable 204 after the stranding work is completed, and the first guide wheel 308, the second guide wheel 309, the electromagnetic slide rail, the telescopic rod 314, the return spring 315 and the electromagnet 316 are consistent with the number of strands 304 set.

[0054] like Figure 3 As shown, the guide assembly 5 includes a guide platform 501, the bottom of the guide platform 501 is fixedly connected to the surface of the base plate 101, and three positioning wheels 502 are rotatably provided on the surface of the guide platform 501. The outer surfaces of the three positioning wheels 502 are in contact with the surface of the cable 204. The three positioning wheels 502 are used to guide and position the cable 204 after the twisting is completed, so as to prevent the cable 204 from offsetting during the winding process, thereby affecting the subsequent winding work of the cable 204. The three positioning wheels 502 are arranged on the surface of the guide platform 501 along the radial direction of the transmission tube 110, and the guide platform 501 is fixed with a fixing rod 503 through the positioning wheel 502, and the three positioning wheels 502 are located in the area between the fixing rod 503 and the guide platform 501, and the fixing rod 503 is used to fix and limit the positions of the three positioning wheels 502, thereby improving the stability of the three positioning wheels 502 during operation.

[0055] like Figure 4 As shown, the traction assembly 4 includes a third support frame 402, and a second drive motor 403 is provided on one side of the third support frame 402. The output end of the second drive motor 403 passes through the fourth support frame 404 and is fixedly connected to the third turntable 401. The bottom of the fourth support frame 404 is arranged above the base plate 101 close to the third support frame 402. The second drive motor 403 can drive the third turntable 401 to rotate and reel in the cable 204 after twisting.

[0056] In summary, when in use, first use the third driving motor in the wire feeding assembly 2 to drive the second turntable 201 to rotate. During this process, the rotation of the second turntable 201 makes the cable 204 transport the cable 204 along the radial direction of the transmission tube 110, and the cable 204 passes through the interior of the transmission tube 110 and moves toward the direction of the stranding assembly 3. Then, the first driving motor 102 uses the first pulley 104 and the second pulley 105 to drive the transmission tube 110 and rotate the transmission tube 110. In this way, as the transmission tube 110 rotates, the first turntable 106 is driven to rotate on the surface of the first support frame 107. As the first turntable 106 rotates, the connecting plate 108 and the stranding roller 109 are driven to rotate. Secondly, as the first driving motor 102 drives the first turntable 106 to rotate, since the connecting plate 108 is connected to one side of the stranding ring 302, the first turntable 106 is driven by the connecting plate 108. The closing ring 302 realizes the effect of synchronous rotation, and then the cable 204 will gradually pass through the interior of the twisting assembly 3. At the same time, the two adjustment plates 307 cooperate with the first guide wheel 308 and the second guide wheel 309 to fix and limit each strand 304 delivered to ensure that each strand 304 maintains the same state during the twisting operation. Then, under the rotation of the first turntable 106, the multiple stranding rollers 109 also rotate with the first turntable 106. Secondly, the transmission tube 110 drives the stranding disk 305 and the two adjustment plates 307 to rotate simultaneously, and the outer surface of the stranding disk 305 contacts the multiple strands 304 and winds the multiple strands 304 on the outer surface of the cable 204 according to certain specifications during the rotation process, and forms a multi-strand integrated cable 204 core, and is transported toward the traction assembly 4 through the stranding plate 304. At this point, the purpose of twisting the multiple strands 304 on the outer surface of the cable 204 according to the specified specifications can be completed, thereby realizing the twisting of the cable 204.

[0057] Subsequently, the three positioning wheels 502 on the guide assembly 5 all contact the surface of the cable 204 after the twisting work is completed, and limit and guide the cable 204 after the twisting work is completed, and then transport the cable 204 to the inside of the traction assembly 4. However, the traction assembly 4 uses the second drive motor 403 to drive the third turntable 401 to rotate, and generates a pulling force on the other end of the cable 204, thereby realizing the traction work of the cable 204, and at the same time cooperates with the rotation of the third turntable 401 to realize the winding work of the cable 204 after the twisting work is completed.

[0058] During the twisting operation, the two adjustment plates 307 and the plurality of first guide wheels 308 and the second guide wheels 309 in the twisting assembly 3 are used to limit the position of the stranded wires 304, and the rotation of the twisting disk 305 is coordinated to make the plurality of stranded wires 304 be wound around the outer surface of the cable 204 in the area on one side of the twisting bracket 306. However, due to improper operation during storage and transportation, or a certain rigidity difference of the material itself, the stranded wires 304 are prone to local bending. When the stranded wires 304 with local deformation or bending are twisted, the bent part will gradually move toward the cable under the action of the torsional force. The outer surface of the cable 204 is offset, and the partially bent strands 304 are twisted to the outer surface, which will cause uneven structural distribution of the cross-section of the cable 204, thereby affecting the overall structural strength of the cable 204. Secondly, if there is dirt or impurities adhering to the outer surface of the strands 304, the diameter of the cable 204 after twisting will be uneven, which not only causes uneven spatial distribution within the cable 204, but also increases the risk of localized high temperature or large short circuits in the battery cells of the cable 204 during subsequent actual use due to the presence of dirt and impurities inside. Based on this, the adjustment method is as follows:

[0059] First, a displacement sensor (not shown in the figure) is provided on the inner wall of the electromagnetic slide rail near the side of the detection spring 313. When the stranded wire 304 passes through the first guide wheel 308 and the second guide wheel 309, a certain extrusion pressure will be generated on the first guide wheel 308 and the second guide wheel 309. At this time, the displacement sensor is used to collect the compression amount of the detection spring 313 to determine whether the stranded wire 304 passing through is locally deformed or locally folded. Secondly, when the stranded wire 304 passes through the first guide wheel 308 and the second guide wheel 309 and enters the interior of the stranding disk 305, a pressure sensor is provided at the entrance area of the stranded wire 304 on the side of the stranding disk 305 facing the adjustment plate 307 to detect whether the entering stranded wire 304 generates pressure on the entrance, so as to determine whether there are foreign objects such as impurities adhering to the surface of the stranded wire 304.

[0060] When the stranded wire 304 passes through the first guide wheel 308 and the second guide wheel 309, if the displacement sensor detects that the detection spring 313 is compressed, and the compression amount of the detection spring 313 is higher than the preset value, it means that the stranded wire 304 in this area has undergone local deformation or bending. At this time, the wire feeding assembly 2 and the traction assembly 4 are controlled to slowly stop working, so that the stranded wire 304 and the cable 204 are no longer transported in the direction of the traction assembly 4. At this time, the area where the stranded wire 304 is deformed or folded is controlled to be located between the two adjustment plates 307. Then, the first guide wheel 308 on the two adjustment plates 307 and the electromagnet 316 under the second guide wheel 309 are controlled respectively, so that the first guide wheel 308 and the second guide wheel 309 are misaligned with each other, and the first slider 310 is controlled to drive the second guide wheel 309 toward the first guide wheel 308. , and moves in the direction to the maximum, so that the lower edge of the first guide wheel 308 contacts the middle area of the second guide wheel 309, and the upper edge of the second guide wheel 309 contacts the middle area of the first guide wheel 308 (please refer to 10 for the specific state). At this time, the lower edge of the first guide wheel 308 cooperates with the upper edge of the second guide wheel 309 to apply an extrusion force to the outside of the stranded wire 304, and respectively controls the first push rod 311 and the second push rod 312 to drive the two adjustment plates 307 to move away from each other (one of the adjustment plates 307 moves toward the stranding disk 305, and the other adjustment plate 307 moves toward the stranding ring 302), thereby achieving a tensile force towards both ends of the deformed or folded area of the stranded wire 304, so that the deformed or folded area can be restored to its original state.

[0061] After the first slider 310 is moved along the inner side of the electromagnetic slide rail, the second slider 310 is moved along the inner side of the electromagnetic slide rail, and the second slider 310 is moved along the inner side of the electromagnetic slide rail, so that the second slider 310 is moved along the inner side of the electromagnetic slide rail, and the second slider 310 is moved along the inner side of the electromagnetic slide rail, so that the second slider 310 is moved along the inner side of the electromagnetic slide rail, and the second slider 310 is moved along the inner side of the electromagnetic slide rail, so that the second slider 310 is moved along the inner side of the electromagnetic slide rail, and the second slider 310 is moved along the inner side of the electromagnetic slide rail, so that the second slider 310 is moved along the inner side of the electromagnetic slide rail, and the second slider 310 is moved along the inner side of the electromagnetic slide rail, so that the second slider 310 is moved along the inner side of the electromagnetic slide rail, and the second slider 310 is moved along the inner side of the electromagnetic slide rail, so that the second slider 310 is moved along the inner side of the electromagnetic slide rail, The wheel 309 also moves in the direction of the second guide wheel 309. When the opposite surfaces of the first guide wheel 308 and the second guide wheel 309 contact each other, the electromagnet 316 under the second guide wheel 309 is controlled to use electromagnetic force to control the second guide wheel 309 to move in the direction of the first slider 310, so that the telescopic rod 314 under the second guide wheel 309 is extended. During the movement, the lower edge of the second guide wheel 309 is used to squeeze the side of the stranded wire 304 facing the second guide wheel 309, so that the stranded wire 304 is always located inside the first guide wheel 308 and will not separate from the first guide wheel 308 and the second guide wheel 309. Under the cooperation of the control electromagnet 316 and the telescopic rod 314, the lower edge of the second guide wheel 309 is located in the middle position of the stranded wire 304 (for specific status, please refer to Figure 9 ), and then the first slider 310 is controlled to continue sliding in the direction of the first guide wheel 308. Since the positions of the first guide wheel 308 and the second guide wheel 309 are staggered at this time, the second guide wheel 309 will have a certain movable area. At this time, the lower edge of the second guide wheel 309 is used to frequently squeeze the area where the stranded wire 304 is deformed or folded (the electromagnetic slide rail controls the first slider 310 to move back and forth left and right in the movable area), thereby achieving the effect of correcting the local deformation of the stranded wire 304. At the same time, during the correction process, since the stranded wire 304 is always located inside the first guide wheel 308 and cooperates with the movement of the second guide wheel 309, there will always be resistance to the deformation area of the stranded wire 304, so that the stranded wire 304 will not be over-corrected during the correction process of the second guide wheel 309.

[0062] If the pressure sensor detects that there is a pressure value at the entrance of the stranded wire 304 when the stranded wire 304 passes through, and the pressure value is higher than the preset value, it is determined that there are debris or foreign matter adhering to the outer surface of the stranded wire 304. At this time, the wire feeding component 2 and the traction component 4 are still controlled to stop the transportation of the stranded wire 304 and the cable 204. Then, the independent power supply of the twisting roller 109 is controlled to control the twisting roller 109 to rotate counterclockwise and retract the stranded wire 304 with adhering debris or other foreign matter and the twisting disk 305 toward the direction of the adjustment plate 307. At the same time, the second drive motor 403 in the traction component 4 is stopped, and the third drive motor in the wire feeding component 2 is turned on to control the second turntable 201 to rotate counterclockwise. The second drive motor 403 is in the off state, so the third turntable 401 is subjected to the pulling force of the wire feeding assembly 2 and the second turntable 201 and rotates counterclockwise, releasing the cable 204 to move in the direction of the adjustment plate 307, and then changing the movement direction of the first drive motor 102 to make the first turntable 106 rotate in the opposite direction (opposite to the rotation direction during the twisting operation). This makes the retracted cable 204 and the externally wound stranded wire 304 separated, until the area with foreign matter outside the stranded wire 304 moves to the position between the stranding disk 305 and the adjustment plate 307 (so that the stranded wire with foreign matter 304 is located at any position that the adjustment plate 307 can contact), controls the second push rod 312 to drive the adjustment plate 307 close to the capstan disk 305 to move toward the capstan disk 305, and controls the electromagnets 316 under the first guide wheel 308 and the second guide wheel 309 during the movement of the adjustment plate 307, so that the first guide wheel 308 and the second guide wheel 309 are staggered with each other, and controls the first slider 310 to drive the second guide wheel 309 to move toward the first guide wheel 308 to the maximum extent, so that the lower edge of the first guide wheel 308 contacts the middle area of the second guide wheel 309, and the upper edge of the second guide wheel 309 contacts the middle area of the first guide wheel 308. Contact (please refer to 10 for the specific status), at this time, the lower edge of the first guide wheel 308 cooperates with the upper edge of the second guide wheel 309 to apply squeezing force to the outside of the stranded wire 304, and at this time, when the adjustment plate 307 moves to the area where foreign matter exists in the stranded wire 304, it realizes the scraping effect of the foreign matter, and drives the second push rod 312 to drive the adjustment plate 307 to frequently reciprocate the area where foreign matter exists in the stranded wire 304, thereby achieving the effect of repeated scraping, avoiding the situation where residual foreign matter still exists after one scraping, and after completing the cleaning work, turn on the wire feeding component 2 and the traction component 4 again, and adjust the first drive motor 102 to rotate clockwise, so as to continue the twisting and winding work.

[0063] Second embodiment

[0064] The present invention also provides a production process for a power shielded cable stranding device for a top drive on an oil platform. The specific process is as follows:

[0065] S1. First, use the driving motor in the wire feeding assembly 2 to convey the cable 204 along the axial direction of the support assembly 1, so that the cable 204 enters the interior of the support assembly 1 and moves toward the twisting assembly 3;

[0066] S2. Then, the first drive motor 102 is used to cooperate with the first pulley 104 and the second pulley 105 to drive the first turntable 106 to rotate. When the first turntable 106 rotates, it drives multiple twisting rollers 109 to rotate together with the first turntable 106. At the same time, the stranded wire 304 on the twisting roller 109 passes through the first turntable 106 and is transported toward the twisting assembly 3 and intersects with the cable 204 on the twisting assembly 3. The support assembly 1 cooperates with the twisting assembly 3 so that the multiple stranded wires 304 are wound around the outer circumference of the cable 204 according to the agreed specifications to form the cable 204 core, thereby completing the twisting work of the cable 204.

[0067] S3. Finally, the guide assembly 5 is used to receive the cable 204 after the twisting work is completed, and the surface of the cable 204 is limited in contact, so that the twisted cable 204 always maintains the prescribed conveying route and is conveyed in the direction of the traction assembly 4. Then, the traction assembly 4 is used to reel in the cable 204 core after the twisting is completed, thereby completing the storage of the cable 204 core.

[0068] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power shielded cable twisting device for a top drive on an oil platform, comprising a support assembly (1), characterized in that: The upper portion of the support assembly (1) is provided with a wire feeding assembly (2), a twisting assembly (3), a guide assembly (5) and a traction assembly (4), respectively; the wire feeding assembly (2) is located on the side of the upper portion of the support assembly (1); the twisting assembly (3), the guide assembly (5) and the traction assembly (4) are arranged in a transverse arrangement along the support assembly (1) and arranged on the upper portion of the support assembly (1); The support assembly (1) comprises a base plate (101), a first drive motor (102) is mounted on the upper portion of the base plate (101), a first pulley (104) is provided at the output end of the first drive motor (102), the first pulley (104) is connected to a second pulley (105) via a transmission belt, and a transmission tube (110) is provided on the inner diameter of the second pulley (105); The twisting assembly (3) includes a twisting disk (305), and a transmission tube (110) is provided with two symmetrically arranged adjustment plates (307) on the outer surface close to the twisting disk (305). Different surfaces of the two adjustment plates (307) are provided with a first push rod (311) and a second push rod (312). The ends of the first push rod (311) and the second push rod (312) away from the adjustment plate (307) are respectively arranged on one side of the twisting disk (305) and the twisting ring (302). The surface of each adjustment plate (307) is provided with an electromagnetic slide rail, and each adjustment plate (307) is provided with a first slider (310) slidingly arranged through the electromagnetic slide rail. A detection spring (313) is provided on one side of each first slider (310), and a telescopic rod (314) is provided on the upper part of each first slider (310). The end of each telescopic rod (314) away from the first slider (310) is provided with a second guide wheel (309).

2. The power shielded cable twisting device for oil platform top drive according to claim 1 is characterized in that: The interior of the twisted disk (305) is fixedly arranged on the outer surface of the transmission tube (110), and a first guide wheel (308) is provided on the upper part of each adjustment plate (307). The first guide wheel (308) is located at a mirror image position of the second guide wheel (309). The first guide wheel (308) and the second guide wheel (309) are used to clamp and limit the twisted wire (304). The bottom of each first guide wheel (308) is provided with a telescopic rod (314) that is the same as the bottom of the second guide wheel (309). The end of the telescopic rod (314) away from the first guide wheel (308) is fixedly arranged on the upper part of the adjustment plate (307). The first guide wheel (308) and the second guide wheel (309) are at the same height in the initial state.

3. The power shielded cable twisting device for oil platform top drive according to claim 2 is characterized in that: A return spring (315) is provided below the first guide wheel (308) and the second guide wheel (309), and one end of each return spring (315) away from the first guide wheel (308) and the second guide wheel (309) is fixedly connected to the top of the adjustment plate (307). An electromagnet (316) is provided below the first guide wheel (308) and the second guide wheel (309) on a side close to the return spring (315), and a magnetic block adapted to the electromagnet (316) is provided above the adjustment plate (307) on a side close to the first guide wheel (308) and the second guide wheel (309); When the electromagnet (316) is turned on, the electromagnetic force can be used to drive the two telescopic rods (314) to extend or contract. When the two telescopic rods (314) are extended or contracted, the corresponding return springs (315) are also in a compressed or stretched state. The first guide wheel (308), the second guide wheel (309), the electromagnetic slide rail, the telescopic rod (314), the return spring (315) and the electromagnet (316) are all arranged along the four sides of the adjustment plate (307), thereby achieving fixed limit of the multiple strands (304) respectively.

4. The power shielded cable twisting device for oil platform top drive according to claim 1 is characterized in that: A first turntable (106) is fixedly mounted on the outer surface of the transmission tube (110), and a first support frame (107) is rotatably connected to the outer side of the first turntable (106). The bottom of the first support frame (107) is fixedly connected to the surface of the bottom plate (101). When the first drive motor (102) drives the transmission tube (110) to rotate by utilizing the cooperation of the first pulley (104) and the second pulley (105), the transmission tube (110) can drive the first turntable (106) to rotate on the surface of the first support frame (107). A connecting plate (108) is provided on a side of the first rotating disk (106) away from the first driving motor (102); a twisting roller (109) is provided inside the connecting plate (108) via a rotating shaft; a driving device is provided on an end of the rotating shaft away from the twisting roller (109); the driving device can drive the twisting roller (109) to rotate; The support assembly (1) further comprises a transmission seat (111), the bottom of which is fixedly arranged on the upper surface of the base plate (101), and the transmission seat (111) is located in the bottom area of the twisting assembly (3), and two symmetrically arranged pulleys (112) are provided inside the transmission seat (111), and the outer surfaces of the two pulleys (112) are in contact with the bottom of the twisting assembly (3).

5. The power shielded cable twisting device for oil platform top drive according to claim 1 is characterized in that: The wire feeding assembly (2) includes a second support frame (202), the second support frame (202) is fixed to the upper part of the bottom plate (101), the second support frame (202) is located on the left side of the first support frame (107), the interior of the second support frame (202) is provided with a second turntable (201) which is rotatable via a rotating shaft (203), the outer surface of the second turntable (201) is wound with a cable (204), and either end of the second turntable (201) is provided with a third drive motor via the rotating shaft (203), the output end of the third drive motor is fixedly connected to one side of the second turntable (201), the third drive motor can drive the second turntable (201) to rotate, and the third drive motor drives the second turntable (201) to rotate, thereby transporting the cable (204) wound on the surface of the second turntable (201) along the radial direction of the transmission tube (110).

6. The power shielded cable twisting device for oil platform top drive according to claim 1 is characterized by: The twisting assembly (3) comprises a twisting ring (302) and a twisting bracket (306), the bottom of the twisting bracket (306) is fixedly arranged above the bottom plate (101), the side of the twisting ring (302) facing the first turntable (106) is fixedly connected to the other end of the connecting plate (108), a limiting rod (301) is provided on the side of the twisting ring (302) away from the connecting plate (108), a through hole for the twisted wire (304) to pass through is opened on the surface of the twisting ring (302), a guide wheel (303) is provided inside the end of the limiting rod (301) away from the twisting ring (302), and the outer surface of the guide wheel (303) is in contact with the twisted wire (304); The guide wheel (303) is used to closely contact the stranded wire (304) and limit the stranded wire (304) during transportation. The number of the limiting rods (301) and the guide wheels (303) is consistent with the number of the stranding rollers (109). The outer surface of the stranding ring (302) is provided with a groove. The stranding ring (302) contacts the outer surfaces of two symmetrically arranged pulleys (112) through the outer groove.

7. The power shielded cable twisting device for oil platform top drive according to claim 6, characterized in that: The guide assembly (5) includes a guide platform (501), the bottom of the guide platform (501) is fixedly connected to the surface of the bottom plate (101), and three positioning wheels (502) are rotatably provided on the surface of the guide platform (501). The outer surfaces of the three positioning wheels (502) are in contact with the surface of the cable (204). The three positioning wheels (502) are used to guide and position the cable (204) after twisting. The three positioning wheels (502) are arranged on the surface of the guide platform (501) along the radial direction of the transmission tube (110). The guide platform (501) is fixed with a fixing rod (503) through the positioning wheels (502). The three positioning wheels (502) are located in the area between the fixing rod (503) and the guide platform (501), and the fixing rod (503) is used to fix and limit the positions of the three positioning wheels (502).

8. The power shielded cable twisting device for oil platform top drive according to claim 7, characterized in that: The traction assembly (4) includes a third support frame (402), a second drive motor (403) is provided on one side of the third support frame (402), an output end of the second drive motor (403) passes through the fourth support frame (404) and is fixedly connected to the third turntable (401), the bottom of the fourth support frame (404) is arranged above the bottom plate (101) close to the third support frame (402), and the second drive motor (403) can drive the third turntable (401) to rotate and can reel in the twisted cable (204).

9. A production process for a power shielded cable for a top drive on an oil platform, characterized by: Based on the power shielded cable stranding equipment for oil platform top drive according to claim 7, the production process includes: S1. First, using the driving motor in the wire feeding assembly (2), the cable (204) is conveyed along the axial direction of the support assembly (1), so that the cable (204) enters the interior of the support assembly (1) and moves toward the twisting assembly (3); S2, then using the first driving motor (102) in conjunction with the first pulley (104) and the second pulley (105) to drive the first turntable (106) to rotate, when the first turntable (106) rotates, the plurality of twisting rollers (109) are driven to rotate along with the first turntable (106), and at the same time, the strands (304) on the twisting rollers (109) pass through the first turntable (106) and are transported in the direction of the twisting assembly (3) and intersect with the cable (204) on the twisting assembly (3), the support assembly (1) cooperates with the twisting assembly (3) so that the plurality of strands (304) are wound around the outer circumference of the cable (204) according to the agreed specifications to form the cable (204) core, thereby completing the twisting work of the cable (204); S3. Finally, the guide assembly (5) is used to receive the cable (204) after the twisting work is completed, and the surface of the cable (204) is limitedly contacted so that the twisted cable (204) always maintains the prescribed conveying route and is conveyed in the direction of the traction assembly (4). Then, the traction assembly (4) is used to reel in the cable (204) core after the twisting is completed, thereby completing the storage work of the cable (204) core.

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