A cross-linked polyethylene insulated power cable and installation equipment

Abstract

The invention relates to the technical field of installation of cables or wires, and in particular to a novel cross-linked polyethylene insulated power cable and installation construction equipment, comprising a core, a wire core, an isolation layer and an insulating layer, wherein the interior of the core is the wire core, and a plurality of outer grooves are extruded on the outer wall of the insulating layer; the invention comprises a trolley, a heat preservation cover, two conveying rollers, a plurality of groove teeth, a dual-output motor, a wire reel mechanism, a heating component and a straightening component, wherein the heat preservation cover is installed on the trolley, the wire reel mechanism is loaded with a cable reel, the heating component heats the cable, the straightening component straightens the drawn cable, two conveying rollers are relatively rotatably installed in a wire drawing chamber, a plurality of groove teeth are circumferentially cut on the outer walls of the two conveying rollers, the plurality of groove teeth are matched with the plurality of outer grooves, and two output shafts of the dual-output motor are respectively connected to the two conveying rollers in a transmission manner; the cable is reduced in damage when bent by meshing with a laying machine matched therewith through a slot on the outer wall of the cable, and efficient conveying and laying of the cable in a low-temperature environment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cable or wire installation, in particular to a novel cross-linked polyethylene insulated power cable and installation construction equipment. Background Art

[0002] Cross-linked polyethylene insulated cable generally refers to a cross-linked polyethylene insulated cable, which is a cable suitable for distribution network and other fields. The prior art with publication number CN211742769U proposes a cross-linked polyethylene insulated cable, which is installed with multiple second fine connecting pieces and first fine connecting pieces on the connecting pieces at the connection between the outer side and the inner side of the insulating filling strip, and the first fine connecting piece and the second fine connecting piece are connected with glue, which will be more stable. At the same time, multiple supporting steel wires and corrugated aluminum sheaths are installed, and the supporting steel wires play a supporting role. The steel wires are strong in toughness and very firm, ensuring that the cable will not be easily deformed. The corrugated aluminum sheath can effectively protect the cross-linked polyethylene insulation sleeve and the structure inside the cross-linked polyethylene insulation sleeve, and has the functions of resisting strong pressure and tensile strength, and can prevent rat bites and insect bites. A Chinese invention patent application with prior art publication number CN113937670A proposes a cable laying machine and a cable laying system, which increases the clamping force on the cable to prevent the cable from slipping relative to the driving wheel, thereby more accurately controlling the movement of the cable. When multiple cable laying machines are used in conjunction with each other, the problem of poor overall traction effect caused by slipping at some cable laying machines can be effectively avoided.

[0003] When laying the cable, it is necessary to bend the cable according to the route. The insulating outer layer of the above-mentioned cable is integral. When the cable is bent, one side of the insulating outer layer is stretched and cracks are likely to occur, while the other side of the insulating outer layer is squeezed and wrinkles are likely to occur. Especially in low temperature environments, the hardness of the cable increases, resulting in increased difficulty in radiation. The above-mentioned cable laying machine relies on increasing the clamping force to prevent the cable from slipping, which can easily cause the cable to be flattened and damaged. Especially in low temperature environments, the hardness and brittleness of the cable increase, causing the outer layer of the cable to be more easily damaged. Therefore, it is necessary to propose an installation and construction equipment that is convenient for cable bending in low temperature environments and can efficiently lay cables at lower clamping forces. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a new cross-linked polyethylene insulated power cable and installation and construction equipment which reduces damage to the cable when it is bent by engaging a groove on the outer wall of the cable with a matching laying machine, thereby achieving efficient transportation and laying of the cable in a low-temperature environment.

[0005] A novel cross-linked polyethylene insulated power cable of the present invention comprises a core, a wire core, an isolation layer and an insulating layer, wherein the interior of the core is a wire core, the isolation layer is coated on the outer layer of the core, and the insulating layer is coated on the outer layer of the isolation layer; the core also comprises a plurality of outer grooves, the outer wall of the insulating layer is extruded with a plurality of outer grooves, the outer grooves are perpendicular to the axis of the core, the plurality of outer grooves are divided into a plurality of rows, the plurality of rows of outer grooves are uniformly arranged on the outer wall of the insulating layer, and the plurality of rows of outer grooves are symmetrically arranged relative to the axis of the core; the core separates the wire core, the isolation layer isolates the electric field generated by the wire core, and the insulating layer protects and insulates the isolation layer, and the insulation layer is provided by the insulation layer. A plurality of rows of outer grooves are symmetrically arranged on the outer wall of the insulating layer, so that when the cable is bent, one side of the insulating layer is squeezed, so that the plurality of outer grooves on the outer wall on the squeezed side are squeezed and narrowed, thereby avoiding wrinkles, and at the same time the other side of the insulating layer is stretched, so that the plurality of outer grooves on the outer wall on the stretched side are stretched and flat, thereby avoiding cracks, thereby improving the reliability of cable laying in a low temperature environment, and at the same time the plurality of outer grooves are engaged with the conveying mechanism of the laying machine matched thereto, thereby avoiding slipping without increasing the clamping force on the cable, avoiding the cable from being flattened or damaged, thereby realizing efficient cable transportation and laying, and having good practicality.

[0006] Preferably, it also includes multiple corrugations and multiple grooves, the inner wall of the insulating layer is uniformly extruded to form multiple corrugations, and the outer wall of the isolation layer is extruded to form multiple grooves, and the multiple grooves are respectively matched with the multiple corrugations; through the coordination of the multiple corrugations and the multiple grooves, the contact area between the insulating layer and the isolation layer is increased, and the bending resistance of the isolation layer is improved.

[0007] A novel cross-linked polyethylene insulated power cable installation and construction equipment of the present invention comprises a trolley, a heat preservation cover, two conveying rollers, a plurality of groove teeth, a dual-output motor, a wire reel mechanism, a heating component and a straightening component. The heat preservation cover is installed on the trolley, the interior of the heat preservation cover is a chamber for accommodating the wire reel mechanism, a door connected to the chamber is hingedly installed on one side of the heat preservation cover, the wire reel mechanism is used to load the cable reel, the heating component is installed in the chamber, the heating component heats the cable, a wire drawing chamber is welded on one side of the heat preservation cover, the wire drawing chamber is connected to the chamber, a straightening component is installed in the wire drawing chamber, the straightening component is used to straighten the drawn cable, two conveying rollers are relatively rotated and installed in the wire drawing chamber, a plurality of groove teeth are circumferentially cut on the outer walls of the two conveying rollers, the plurality of groove teeth match the plurality of outer grooves, and the dual-output motor is installed on the heat preservation cover. The two output shafts of the dual-output motor are respectively connected to the two conveying rollers in a driving manner; when working, the cable coil is loaded onto the cable reel mechanism in the chamber of the insulation cover, the heating component heats and softens the cable, and the end of the cable is pulled out and inserted between the straightening component and the two conveying rollers, and a plurality of groove teeth are engaged with a plurality of outer grooves, and the dual-output motor drives the two conveying rollers to rotate relative to each other, so that the two conveying rollers are in friction contact with the outer wall of the insulation layer of the cable and a plurality of groove teeth are engaged with a plurality of outer grooves on both sides of the outer wall of the insulation layer, thereby conveying the cable outward, so that the cable is pulled out from the cable coil, and the cable is straightened when passing through the straightening component, which is convenient for cable laying, and can avoid slipping without increasing the clamping force on the cable, and avoid the cable from being flattened and damaged, thereby realizing efficient cable transportation and laying in a low temperature environment, and having good practicality.

[0008] Preferably, the straightening assembly includes pressure roller one, pressure roller two and supporting roller one, and pressure roller one, pressure roller two and supporting roller one are rotatably installed in the wire pulling chamber of the heat preservation cover, and supporting roller one is located below and in the middle of pressure roller one and pressure roller two; pressure roller one and pressure roller two block the upper part of the cable, and supporting roller one rotatably supports the lower part of the cable, so that supporting roller one and pressure roller one and pressure roller two cooperate to straighten the bent cable pulled out from the cable reel, eliminate stress during cable laying, and improve laying efficiency.

[0009] Preferably, it also includes roller 2, which is rotatably installed in the wire pulling chamber of the heat preservation cover, and roller 2 is located below pressure roller 1; roller 2 and pressure roller 1 cooperate to rotate and clamp the cable pulled out from the cable coil, so that the cable is always in rolling contact with pressure roller 1, thereby improving the straightening effect of the cable.

[0010] Preferably, the cable drum mechanism includes a shaft tube frame, a shaft tube and multiple pressure plates, the shaft tube frame is installed on a trolley, the shaft tube is rotatably installed on the shaft tube frame, multiple sliding grooves are circularly cut on the shaft tube, and the multiple pressure plates are respectively slidably installed in the multiple sliding grooves of the shaft tube, and a pushing component for multiple pressure plates is installed inside the shaft tube; the middle hole of the cable winding is sleeved and loaded onto the shaft tube, and the pushing component is operated to push the multiple pressure plates toward the outside of the shaft tube, so that the multiple pressure plates are pressed tightly against the inner wall of the middle hole of the cable winding, thereby clamping the cable winding, and when the cable is pulled out, the shaft tube rotates on the shaft tube frame, thereby releasing the cable.

[0011] The lifting mechanism further comprises a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism on the lifting platform, and a lifting mechanism on the lifting platform.

[0012] Preferably, the pushing assembly includes a push rod, multiple roller frames, multiple springs and multiple bosses, a pressure roller is slidably inserted in the inner center of the shaft tube, multiple roller frames are respectively slidably inserted on the outer wall of the push rod, the outer ends of the multiple roller frames are rotatably installed with rollers, the multiple roller frames are elastically connected to the push rod through multiple springs, the multiple roller frames are respectively aligned with the multiple pressure plates, the inner sides of the multiple pressure plates are machined with roller grooves, the roller grooves are protruded with multiple inwardly protruding bosses, and the rollers of the multiple roller frames roll in the multiple roller grooves respectively; when it is necessary to clamp the cable winding, the push rod is pushed toward the inside of the shaft tube to drive the multiple roller frames. The plurality of roller frames are used for unloading the cable reels, and the plurality of roller frames are used for unloading the cable reels. The plurality of roller frames are used for unloading the cable reels, and the plurality of roller frames are used for unloading the cable reels. The plurality of roller frames are used for unloading the cable reels, and the plurality of roller frames are used for unloading the cable reels. The plurality of roller frames are used for unloading the cable reels, and the plurality of roller frames are used for unloading the cable reels. The plurality of roller frames are used for unloading the cable reels, and the plurality of roller frames are used for unloading the cable reels.

[0013] Preferably, it also includes a plurality of limit slots, and the middle parts of the inner end surfaces of the plurality of bosses are machined to form limit slots, and the limit slots limit and clamp the rollers of the roller rack; when the rollers of the plurality of roller racks reach the middle parts of the plurality of bosses, they are clamped into the plurality of limit slots, and the pushing of the push rod is stopped at this time, thereby improving the clamping stability and accuracy of the rollers of the roller rack.

[0014] Preferably, the heating assembly includes multiple sliding rods, a heating plate and a slot, the multiple sliding rods are installed in the chamber of the heat preservation cover, the heating plate is slidably installed on the multiple sliding rods, the heating plate is arranged around the outside of the cable reel, a slot is cut at one end of the heating plate, and the pulled-out cable is clamped in the slot; the slot is clamped on the cable pulled out from the cable reel, so that the heating plate is aligned with the part of the cable on the cable reel to be pulled out, so that the heating plate specifically heats and softens the cable part, and as the cable is pulled out, the cable moves the heating plate along the multiple sliding rods through the slot, so that the heating plate is always arranged around the outside of the cable to be pulled out for special heating, thereby improving the heating efficiency of the cable and reducing the heating power, which is more energy-saving and efficient.

[0015] Compared with the prior art, the present invention has the following beneficial effects: by symmetrically arranging multiple rows of outer grooves on the outer wall of the insulating layer, when the cable is bent, one side of the insulating layer is squeezed, so that the multiple outer grooves on the outer wall of the squeezed side are squeezed and narrowed, thereby avoiding wrinkles, and at the same time the other side of the insulating layer is stretched, so that the multiple outer grooves on the outer wall of the stretched side are stretched and flat, thereby avoiding cracks, and improving the reliability of cable laying in a low temperature environment;

[0016] The dual-output motor drives the two conveying rollers to rotate relative to each other, so that the two conveying rollers are in frictional contact with the outer wall of the insulation layer of the cable and a plurality of groove teeth engage with a plurality of outer grooves on both sides of the outer wall of the insulation layer, thereby conveying the cable outward, so that the cable is pulled out from the cable reel. The cable is straightened when passing through the straightening assembly, which facilitates cable laying and avoids slipping without increasing the clamping force on the cable, thereby preventing the cable from being flattened or damaged, thereby achieving efficient cable transportation and laying in a low temperature environment, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the cable of the present invention;

[0018] Figure 2 is a schematic cross-sectional view of the cable of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the installation construction equipment of the present invention;

[0020] Figure 4 It is a front cross-sectional structural schematic diagram of the installation construction equipment of the present invention;

[0021] Figure 5 It is an axonometric structural diagram of the installation construction equipment of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the heating component, straightening component, conveying roller, groove teeth and dual output motor;

[0023] Figure 7 is a schematic diagram of the structure of the heating component;

[0024] Figure 8 It is a schematic diagram of the trolley and reel mechanism;

[0025] Fig. 9 It is a structural schematic diagram of the reel mechanism in the flipping state;

[0026] Fig.10 It is a partial cross-sectional structural schematic diagram of the shaft tube, the pressure plate and the push assembly;

[0027] Fig.11 It is a front cross-sectional structural diagram of the shaft tube, the pressure plate and the push assembly;

[0028] Fig.12 It is a schematic diagram of the structure of the shaft tube, the pressure plate and the push assembly in the exploded state;

[0029] Fig.13 It is a structural diagram showing the working status of the installation and construction equipment;

[0030] Fig.14 It is a structural diagram of the installation construction equipment loading or unloading the cable coil state.

[0031] Markings in the attached drawings: 1. core; 2. wire core; 3. isolation layer; 4. insulation layer; 5. outer groove; 6. corrugation; 7. groove; 8. trolley; 9. insulation cover; 10. conveyor roller; 11. groove tooth; 12. dual output motor; 13. pressure roller one; 14. pressure roller two; 15. roller one; 16. roller two; 17. axle tube frame; 18. axle tube; 19. pressure plate; 20. inclined slide; 21. slide; 22. push cylinder; 23. push rod; 24. roller frame; 25. spring; 26. boss; 27. limit slot; 28. slide rod; 29. ​​heating plate; 30. notch. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0033] Example 1

[0034] like Figure 1 to Figure 2As shown, a new type of cross-linked polyethylene insulated power cable and installation and construction equipment include a core 1, a wire core 2, an isolation layer 3 and an insulating layer 4, the interior of the core 1 is the wire core 2, the isolation layer 3 is coated on the outer layer of the core 1, and the insulating layer 4 is coated on the outer layer of the isolation layer 3; it also includes a plurality of outer grooves 5, the outer wall of the insulating layer 4 is extruded with a plurality of outer grooves 5, the outer grooves 5 are perpendicular to the axis of the core 1, and the plurality of outer grooves 5 are divided into a plurality of rows, the plurality of rows of outer grooves 5 are uniformly arranged on the outer wall of the insulating layer 4, and the plurality of rows of outer grooves 5 are symmetrically arranged relative to the axis of the core 1; it also includes a plurality of corrugations 6 and a plurality of grooves 7, the inner wall of the insulating layer 4 is uniformly extruded with a plurality of corrugations 6, the outer wall of the isolation layer 3 is extruded with a plurality of grooves 7, and the plurality of grooves 7 are matched with the plurality of corrugations 6 respectively.

[0035] The core 1 separates the wire cores 2, the isolation layer 3 isolates the electric field generated by the wire core 2, and the insulating layer 4 protects and insulates the isolation layer 3. The contact area between the insulating layer 4 and the isolation layer 3 is increased by cooperating with multiple corrugations 6 and multiple grooves 7, and the bending resistance of the isolation layer 3 is improved. By symmetrically arranging multiple rows of outer grooves 5 on the outer wall of the insulating layer 4, when the cable is bent, one side of the insulating layer 4 is squeezed, so that the multiple outer grooves 5 on the outer wall of the squeezed side are squeezed and narrowed, thereby avoiding wrinkles. At the same time, the other side of the insulating layer 4 is stretched, so that the multiple outer grooves 5 on the outer wall of the stretched side are stretched flat, thereby avoiding cracks, and improving the reliability of cable laying in a low temperature environment. At the same time, the multiple outer grooves 5 are engaged with the conveying mechanism of the laying machine matched thereto, so that there is no need to increase the clamping force on the cable to avoid slipping, and the cable is prevented from being flattened and damaged, thereby achieving efficient cable transportation and laying.

[0036] Example 2

[0037] like Figures 3 to 7As shown, on the basis of Example 1, it includes a trolley 8, a heat preservation cover 9, two conveying rollers 10, a plurality of groove teeth 11, a dual output motor 12, a wire reel mechanism, a heating component and a straightening component. The heat preservation cover 9 is installed on the trolley 8. The interior of the heat preservation cover 9 is a chamber for accommodating the wire reel mechanism. A box door connected to the chamber is hingedly installed on one side of the heat preservation cover 9. The wire reel mechanism is used to load the cable coil. The heating component is installed in the chamber. The heating component heats the cable. A wire drawing chamber is welded on one side of the heat preservation cover 9. The wire drawing chamber is connected to the chamber. A straightening component is installed in the wire drawing chamber. The straightening component is used to straighten the drawn cable. Two conveying rollers 10 are installed in the wire drawing chamber for relative rotation. A plurality of groove teeth 11 are circumferentially cut on the outer walls of the two conveying rollers 10. The plurality of groove teeth 11 match the plurality of outer grooves 5. The dual output motor 12 is installed in the heat preservation cover 9. On the thermal cover 9, the two output shafts of the dual-output motor 12 are respectively connected to the two conveying rollers 10 for transmission. The straightening assembly includes a pressure roller 13, a pressure roller 14 and an idler roller 15. The pressure roller 13, the pressure roller 14 and the idler roller 15 are rotatably installed in the wire drawing chamber of the thermal insulation cover 9, and the idler roller 15 is located below the middle of the pressure roller 13 and the pressure roller 2 14; it also includes an idler roller 16, which is rotatably installed in the wire drawing chamber of the thermal insulation cover 9, and the idler roller 16 is located below the pressure roller 13; the heating assembly includes a plurality of slide bars 28, a heating plate 29 and a notch 30. The plurality of slide bars 28 are installed in the chamber of the thermal insulation cover 9, and the heating plate 29 is slidably installed on the plurality of slide bars 28. The heating plate 29 is arranged around the outside of the cable coil, and a notch 30 is cut at one end of the heating plate 29, and the pulled out cable is stuck in the notch 30.

[0038] During operation, the cable reel is loaded onto the reel mechanism in the chamber of the heat preservation cover 9, and the notch 30 is clamped on the cable pulled out from the cable reel, so that the heating plate 29 is aligned with the part of the cable on the cable reel to be pulled out, so that the heating plate 29 specifically heats and softens the cable part, and the end of the cable is pulled out and extended into between the straightening assembly and the two conveying rollers 10, and the multiple groove teeth 11 are engaged with the multiple outer grooves 5, and the dual output motor 12 drives the two conveying rollers 10 to rotate relative to each other, so that the two conveying rollers 10 are in frictional contact with the outer wall of the insulation layer 4 of the cable and the multiple groove teeth 11 are engaged with the multiple outer grooves 5 on both sides of the outer wall of the insulation layer 4, thereby conveying the cable outward, so that the cable is pulled out from the cable reel, and as the cable is pulled out, the cable pushes the heating plate 29 along the multiple grooves 5 through the notch 30. The sliding rod 28 moves so that the heating plate 29 is always arranged around the outer side of the cable to be drawn out for special heating, thereby improving the heating efficiency of the cable and reducing the heating power, which is more energy-saving and efficient. The roller 2 16 and the pressure roller 1 13 cooperate to rotate and clamp the cable drawn out from the cable coil, so that the cable is always in rolling contact with the pressure roller 13, and the pressure roller 13 and the pressure roller 2 14 block the upper part of the cable, and the roller 15 supports the lower part of the cable, so that the roller 15 and the pressure roller 13 and the pressure roller 2 14 cooperate to straighten the bent cable drawn out from the cable coil, eliminate the stress during cable laying, improve the laying efficiency, avoid slipping without increasing the clamping force on the cable, and avoid the cable being flattened and damaged, so as to realize efficient transportation and laying of cables in a low temperature environment.

[0039] Example 3

[0040] like Figures 8 to 14As shown, on the basis of Example 2, the wire drum mechanism includes a shaft tube frame 17, a shaft tube 18 and a plurality of pressure plates 19, the shaft tube frame 17 is mounted on the trolley 8, the shaft tube 18 is rotatably mounted on the shaft tube frame 17, a plurality of slide grooves are circumferentially cut on the shaft tube 18, a plurality of pressure plates 19 are respectively slidably mounted in the plurality of slide grooves of the shaft tube 18, and a pushing component of the plurality of pressure plates 19 is installed inside the shaft tube 18; it also includes an inclined slide groove 20, a slide table 21 and a push cylinder 22, the inclined inclined slide groove 20 is cut on the trolley 8, the slide table 21 is slidably mounted in the inclined slide groove 20, the lower end of the shaft tube frame 17 is rotatably connected to the slide table 21, the fixed end of the push cylinder 22 is rotatably mounted on the trolley 8, and the piston rod of the push cylinder 22 is rotatably connected to the shaft tube frame 17; the pushing component includes a push rod 23, a plurality of roller frames 24, multiple springs 25 and multiple bosses 26, the pressure roller 13 is slidably inserted in the inner center of the shaft tube 18, and multiple roller frames 24 are respectively slidably inserted on the outer wall of the push rod 23, and the outer ends of the multiple roller frames 24 are rotatably installed with rollers. The multiple roller frames 24 are elastically connected to the push rod 23 through multiple springs 25, and the multiple roller frames 24 are respectively aligned with the multiple pressure plates 19. The inner sides of the multiple pressure plates 19 are all cut and machined with roller grooves, and the roller grooves are all protruded with multiple inwardly protruding bosses 26, and the rollers of the multiple roller frames 24 roll in the multiple roller grooves respectively; it also includes multiple limiting grooves 27, and the middle parts of the inner end faces of the multiple bosses 26 are all cut and machined to form limiting grooves 27, and the limiting grooves 27 limit the rollers of the roller frames 24.

[0041] The trolley 8 moves to the side of the cable coil, the piston rod of the push cylinder 22 extends to push the shaft tube frame 17 to the outside of the trolley 8 along the inclined slide 20, and the slide 21 is blocked when it reaches the lower end of the inclined slide 20. The piston rod of the push cylinder 22 continues to extend to make the shaft tube frame 17 flip to the outside of the trolley 8, so that the shaft tube frame 17 drives the shaft tube 18 to be inserted into the middle hole of the cable coil, and the end of the push rod 23 is blocked by the ground to push the push rod 23 to the shaft tube 1 8 pushes inward, driving the multiple roller racks 24 to roll toward the multiple bosses 26. When the rollers of the multiple roller racks 24 roll onto the multiple bosses 26, when the rollers of the multiple roller racks 24 reach the middle of the multiple bosses 26, they are clamped into the multiple limit clamping grooves 27. At this time, the push of the push rod 23 is stopped, so as to improve the clamping stability and accuracy of the rollers of the roller racks 24. The elastic force of the multiple springs 25 pushes the multiple pressure plates 19 to the outside of the shaft tube 18 through the multiple roller racks 24. The push cylinder 22 pushes the plurality of pressure plates 19 to press against the inner wall of the hole in the middle of the cable coil, thereby clamping the cable coil. The piston rod of the push cylinder 22 contracts to flip the shaft tube frame 17 upright, and then lifts the slide 21 upward along the inclined slide 20, so that the slide 21 reaches the upper end of the inclined slide 20. When the cable is pulled out, the shaft tube 18 rotates on the shaft tube frame 17 to release the cable. When the cable coil needs to be loaded, the piston rod of the push cylinder 22 extends to turn the shaft tube frame 17 upward. The trolley 8 is flipped to the outside, the cable coil is placed on the ground, and the end of the push rod 23 is blocked by the ground to push the push rod 23 inward toward the shaft tube 18, so that the rollers of the multiple roller frames 24 pass over the multiple bosses 26, so that the multiple pressure plates 19 are in a free state. At this time, the piston rod of the push cylinder 22 contracts to erect the shaft tube frame 17 and remove the shaft tube 18 from the hole in the middle of the cable coil and reset it, thereby realizing automatic loading and unloading of the cable coil when the shaft tube frame 17 is flipped.

[0042] like Figures 1 to 14As shown, a novel cross-linked polyethylene insulated power cable and installation construction equipment of the present invention, when working, first the trolley 8 moves to the side of the cable coil, the piston rod of the push cylinder 22 extends to push the shaft tube frame 17 connected to the slide 21 along the inclined slide 20 to the outside of the trolley 8, when the slide 21 reaches the lower end of the inclined slide 20, it is blocked, and the piston rod of the push cylinder 22 continues to extend to make the shaft tube frame 17 flip to the outside of the trolley 8, so that the shaft tube frame 17 drives the shaft tube 18 to be inserted into the middle hole of the cable coil, and then the ground pushes the push rod 23 to the inside of the shaft tube 18, driving multiple rollers The frame 24 rolls toward the plurality of bosses 26. When the rollers of the plurality of roller frames 24 roll onto the plurality of bosses 26, the elastic force of the plurality of springs 25 pushes the plurality of pressure plates 19 toward the outside of the shaft tube 18 through the plurality of roller frames 24, thereby winding and clamping the cable. The piston rod of the push cylinder 22 contracts to flip the shaft tube frame 17 upright and then lifts the slide 21 upward along the inclined slide 20, so that the slide 21 reaches the upper end of the inclined slide 20, and then pulls out the end of the cable and extends it into the notch 30, passes through between the pressure roller 13, the pressure roller 24 and the support roller 15, passes between the two conveying rollers 10, and makes the plurality of The plurality of groove teeth 11 mesh with the plurality of outer grooves 5, the heating plate 29 specifically heats and softens the cable portion, the dual output motor 12 runs to drive the two conveying rollers 10 to rotate relative to each other, so that the two conveying rollers 10 are in frictional contact with the outer wall of the insulating layer 4 of the cable and the plurality of groove teeth 11 mesh with the plurality of outer grooves 5 on both sides of the outer wall of the insulating layer 4, thereby conveying the cable outward, so that the cable is pulled out from the cable reel, the supporting roller 15 and the pressing roller 13 and the pressing roller 2 14 cooperate to straighten the bent cable pulled out from the cable reel, and as the cable is pulled out, the cable passes through the notch 30 and pushes the heating plate 29 along the plurality of The sliding rod 28 moves so that the heating plate 29 is always arranged around the outside of the cable to be drawn out for special heating. Finally, when the cable coil needs to be unloaded, the box door on the heat preservation cover 9 is opened, and the piston rod of the push cylinder 22 is extended to flip the shaft tube frame 17 to the outside of the trolley 8. The end of the push rod 23 is blocked by the ground and pushes the push rod 23 toward the inside of the shaft tube 18, so that the rollers of the multiple roller frames 24 pass over the multiple bosses 26, so that the multiple pressure plates 19 are in a free state. At this time, the piston rod of the push cylinder 22 contracts to flip the shaft tube frame 17 upright, so that the cable coil can be removed from the shaft tube 18.

[0043] The main functions achieved by the present invention are:

[0044] 1. Through the groove on the outer wall of the cable and the engagement with the matching laying machine, the efficient transportation and laying of cables in low temperature environment can be achieved;

[0045] 2. The slots on the outer wall of the cable can reduce the damage caused by cracks and wrinkles when the cable is bent;

[0046] 3. It can automatically load and unload cable coils, with high working efficiency;

[0047] 4. The heater is always aligned with the part where the cable is drawn, and local heating is performed, which is more energy-saving and efficient;

[0048] 5. It can straighten the bent cables, eliminate the stress during cable laying, and improve the laying efficiency.

[0049] A novel cross-linked polyethylene insulated power cable and installation and construction equipment of the present invention, whose installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved; a core 1, a wire core 2, an isolation layer 3, an insulation layer 4, a trolley 8, a heat preservation cover 9, a conveying roller 10, a dual output motor 12, a pressure roller 13, a pressure roller 2 14, an idler roller 15, an idler roller 2 16, an axle tube 18, a slide 21, a push cylinder 22, a roller frame 24, a spring 25, a slide rod 28, and a heating plate 29 of a novel cross-linked polyethylene insulated power cable and installation and construction equipment of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cross-linked polyethylene insulated power cable installation and construction equipment, the cross-linked polyethylene insulated power cable comprising a core (1), a wire core (2), an isolation layer (3) and an insulating layer (4), the core (1) having a wire core (2) inside, the isolation layer (3) coated on the outer layer of the core (1), the insulating layer (4) coated on the outer layer of the isolation layer (3), and comprising a plurality of outer grooves (5), the plurality of outer grooves (5) being extruded on the outer wall of the insulating layer (4), the outer grooves (5) being perpendicular to the axis of the core (1), the plurality of outer grooves (5) being divided into a plurality of rows, the plurality of rows of outer grooves (5) being uniformly arranged on the outer wall of the insulating layer (4), the plurality of rows of outer grooves (5) being symmetrically arranged relative to the axis of the core (1); and the plurality of corrugations (6) and a plurality of grooves (7), the inner wall of the insulating layer (4) being uniformly extruded to form the plurality of corrugations (6), the outer wall of the isolation layer (3) being extruded to form the plurality of grooves (7), the plurality of grooves (7) being matched with the plurality of corrugations (6) respectively; The cross-linked polyethylene insulated power cable installation and construction equipment is characterized in that: The invention comprises a trolley (8), a heat preservation cover (9), two conveying rollers (10), a plurality of groove teeth (11), a dual output motor (12), a wire reel mechanism, a heating component and a straightening component. The heat preservation cover (9) is installed on the trolley (8). The interior of the heat preservation cover (9) is a chamber for accommodating the wire reel mechanism. A door connected to the chamber is hingedly installed on one side of the heat preservation cover (9). The wire reel mechanism is used to load the wire reel. The heating component is installed in the chamber. The heating component heats the wire. One side of the heat preservation cover (9) A welding wire drawing chamber, the wire drawing chamber is connected to the chamber, a straightening assembly is installed in the wire drawing chamber, the straightening assembly is used to straighten the drawn cable, two conveying rollers (10) are relatively rotatably installed in the wire drawing chamber, a plurality of groove teeth (11) are circumferentially cut on the outer walls of the two conveying rollers (10), the plurality of groove teeth (11) are matched with the plurality of outer grooves (5), a dual output motor (12) is installed on the heat preservation cover (9), and two output shafts of the dual output motor (12) are respectively connected to the two conveying rollers (10) in a transmission manner; The wire drum mechanism comprises a shaft tube frame (17), a shaft tube (18) and a plurality of pressing plates (19); the shaft tube frame (17) is mounted on a trolley (8); the shaft tube (18) is rotatably mounted on the shaft tube frame (17); a plurality of sliding grooves are circumferentially cut on the shaft tube (18); the plurality of pressing plates (19) are respectively slidably mounted in the plurality of sliding grooves of the shaft tube (18); and a plurality of pushing components of the pressing plates (19) are mounted inside the shaft tube (18); It also includes an inclined slide (20), a slide (21) and a push cylinder (22), wherein the inclined inclined slide (20) is cut and processed on the trolley (8), the slide (21) is slidably installed in the inclined slide (20), the lower end of the shaft tube frame (17) is rotatably connected to the slide (21), the fixed end of the push cylinder (22) is rotatably installed on the trolley (8), and the piston rod of the push cylinder (22) is rotatably connected to the shaft tube frame (17); The pushing assembly comprises a push rod (23), a plurality of roller frames (24), a plurality of springs (25) and a plurality of bosses (26); the push rod (23) is slidably inserted in the center of the shaft tube (18); the plurality of roller frames (24) are respectively slidably inserted on the outer wall of the push rod (23); rollers are rotatably mounted on the outer ends of the plurality of roller frames (24); the plurality of roller frames (24) are elastically connected to the push rod (23) via a plurality of springs (25); the plurality of roller frames (24) are respectively aligned with a plurality of pressure plates (19); the inner sides of the plurality of pressure plates (19) are machined to have roller slide grooves; a plurality of inwardly protruding bosses (26) are protruded in the roller slide grooves; and the rollers of the plurality of roller frames (24) roll in the plurality of roller slide grooves.

2. A cross-linked polyethylene insulated power cable installation and construction equipment as claimed in claim 1, characterized in that: The straightening assembly comprises a pressure roller 1 (13), a pressure roller 2 (14) and a support roller 1 (15). The pressure roller 1 (13), the pressure roller 2 (14) and the support roller 1 (15) are rotatably mounted in the wire drawing chamber of the heat preservation cover (9), and the support roller 1 (15) is located below and in the middle of the pressure roller 1 (13) and the pressure roller 2 (14).

3. A cross-linked polyethylene insulated power cable installation and construction equipment as claimed in claim 2, characterized in that: It also includes a second roller (16), which is rotatably mounted in the wire drawing chamber of the heat-insulating cover (9), and the second roller (16) is located below the first pressing roller (13).

4. A cross-linked polyethylene insulated power cable installation and construction equipment as claimed in claim 1, characterized in that: It also comprises a plurality of limiting clamping grooves (27), wherein the middle parts of the inner end surfaces of the plurality of bosses (26) are all cut to form the limiting clamping grooves (27), and the limiting clamping grooves (27) clamp the rollers of the roller frame (24) in a limiting manner.

5. A cross-linked polyethylene insulated power cable installation and construction equipment as claimed in claim 1, characterized in that: The heating assembly comprises a plurality of slide bars (28), a heating plate (29) and a notch (30). The plurality of slide bars (28) are installed in the chamber of the heat-insulating cover (9). The heating plate (29) is slidably installed on the plurality of slide bars (28). The heating plate (29) is arranged around the outer side of the cable coil. The notch (30) is cut at one end of the heating plate (29), and the drawn cable is stuck in the notch (30).

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