Automatic lead coating device suitable for high-voltage cable joint lead coating process

Abstract

The invention belongs to the technical field of high-voltage cables, and provides an automatic lead coating device suitable for a high-voltage cable joint lead coating process, which comprises an outer rotor slip ring device, a winding mechanism and a cable clamping walking mechanism, the two semicircular inner stator mechanisms are detachably buckled up and down; a plurality of semicircular electric slip rings are fixedly mounted on the outer surface of each semicircular inner stator mechanism, and semicircular copper sliding sleeves are fixedly mounted at the positions, close to the two ends, of the outer surface; the two semicircular outer rotor mechanisms are clamped on the semicircular copper sliding sleeves and are connected into an integral circular outer rotor through a hinge and a locking mechanism; the two semicircular outer rotor mechanisms are provided with electric brushes, and the electric brushes are in electric contact with the semicircular electric slip rings on the two semicircular inner stator mechanisms. The belt-shaped lead material is adopted, the to-be-wound object is heated through the high-temperature hot air gun before winding, the lead belt is heated at the same time, and the lead belt is pressed tightly through the elastic coating head in the winding process.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of high-voltage cables, and particularly relates to an automatic lead lining device suitable for a high-voltage cable joint lead lining process. BACKGROUND

[0002] During the process of connecting high-voltage cables, a lead lining joint needs to be made between a prefabricated joint and an outer aluminum sheath of a cable, which is called a lead lining joint.

[0003] The traditional working method of the lead lining joint is to melt lead-tin alloy material by flame, and a worker wearing heatproof gloves applies the molten lead material to the prefabricated joint and the outer aluminum sheath of the cable. The melting temperature of the lead material is between 180° and 280°, which is relatively high, and the worker needs to keep a high degree of attention in real time to avoid burns and deviations in the quality of lead lining, which may lead to accidents.

[0004] Patent ZL202411321544.8 “High-voltage cable accessory and cable corrugated aluminum sheath automatic lead lining machine and lead lining process” (publication number CN119314742B) discloses an automatic lead lining machine for high-voltage cable accessories and cable corrugated aluminum sheaths, which comprises a fixed unit, a rotating positioning unit, an operation system and a control module. The operation system is installed on the rotating positioning unit, and the rotating positioning unit is installed on the fixed unit. The fixed unit clamps and fixes the cable. The fixed unit, the rotating positioning unit and the operation system are controlled by the control module to perform lead lining on the high-voltage cable accessories and the cable corrugated aluminum sheaths, which can improve the quality and efficiency of lead lining and realize automatic operation of the lead lining process. However, due to the fixed shape and size of the shell base and the turntable and other parts, and the use of the traditional lead lining method of molten lead, the application range is narrow and the degree of automation is not high (such as the forward and reverse rotation of the servo motor and the judgment of the fluidity of the lead, which still requires experienced workers to intervene).

[0005] Therefore, there is an urgent need to develop an automatic lead lining device with a wide application range and a high degree of automation to replace manual lead lining work. SUMMARY

[0006] To solve the above problems, the present disclosure provides an automatic lead lining device suitable for a high-voltage cable joint lead lining process, which uses a strip-shaped lead material and wraps the strip-shaped lead material around the prefabricated joint and the cable aluminum sheath by winding. Before winding, the object to be wound is heated by a high-temperature hot air gun, and the lead strip is also heated at the same time. During the winding process, the lead strip is compressed by an elastic applicator head to ensure the density of the lead application, and the manual lead lining operation is replaced.

[0007] The present disclosure is implemented by the following preferred schemes: An automatic lead-bushing device suitable for high-voltage cable joint lead-bushing process, comprising an outer rotor slip ring device, a winding mechanism and a cable clamp walking mechanism; The outer rotor slip ring device comprises two half-circle inner stator mechanisms and two half-circle outer rotor mechanisms; the two half-circle inner stator mechanisms are detachably buckled together; a rotor driving motor frame is fixed on the lower half-circle inner stator mechanism; a plurality of half-circle electric slip rings are fixedly installed on the outer surface of each half-circle inner stator mechanism; a half-circle copper slip sleeve is fixedly installed on the outer surface of each half-circle inner stator mechanism near the two ends, respectively; The two half-circle outer rotor mechanisms are clamped on the half-circle copper slip sleeves of the two half-circle inner stator mechanisms and connected into a whole circular outer rotor through a hinge and a locking mechanism; brushes are installed on the two half-circle outer rotor mechanisms and form electrical contact with the half-circle electric slip rings on the two half-circle inner stator mechanisms; A half-circle outer rotor driving gear is fixedly installed on the outer surface of each half-circle outer rotor mechanism near the same end, respectively; an outer rotor driving motor is fixedly installed on the rotor driving motor frame, and a pinion gear engaged with the outer rotor driving gear is fixed on the output end of the outer rotor driving motor.

[0008] Further, A plurality of half-circle copper rings are fixed on the two half-circle inner stator mechanisms through screws, respectively; the plurality of half-circle copper rings on each half-circle inner stator mechanism are connected with an independent wire connector through wires, and the two half-circle inner stator mechanisms are connected with one wire connector, respectively.

[0009] Further, The outer rotor slip ring device is used for installing the winding mechanism and supplying power to the winding mechanism through the brushes; the winding mechanism is installed on one of the half-circle outer rotor mechanisms.

[0010] Further, The winding mechanism comprises a mounting plate, a torsion retainer, a lead belt pulley, an aluminum sheath hot air gun, a lead belt hot air gun, an aluminum sheath temperature sensor, a lead belt temperature sensor and an elastic coating head.

[0011] Further, The aluminum sheath hot air gun and the lead belt hot air gun are powered by the brushes.

[0012] Further, The mounting plate is fixed on one of the half-circle outer rotor mechanisms; The torsion retainer, the aluminum sheath hot air gun, the lead belt hot air gun, the aluminum sheath temperature sensor, the lead belt temperature sensor and the elastic coating head are installed on the mounting plate, respectively; The lead belt pulley is installed on the torsion retainer.

[0013] Further, The winding mechanism further comprises an aluminum sheath hot air gun adjusting mechanism; The aluminum sheath hot air gun is connected to the aluminum sheath hot air gun adjusting mechanism through the ceramic hose.

[0014] Further, The cable clamp walking mechanism comprises two groups of V-shaped clamping devices and a plurality of connecting rods.

[0015] Further, The plurality of connecting rods are equal in length and arranged in parallel, and the two groups of V-shaped clamping devices are fixed at two ends of the plurality of connecting rods.

[0016] Further, The cable clamp walking mechanism is fixedly connected to the rotor driving motor frame on the semicircular outer rotor mechanism through the optical shaft.

[0017] Further, A lead screw motor is fixedly installed on the V-shaped clamping device close to the outer rotor slip ring device, the lead screw motor is engaged with the optical shaft, and both ends of the optical shaft are supported on the two groups of V-shaped clamping devices through sliding bearings.

[0018] Further, The V-shaped clamping device comprises a bearing seat, a clamping seat, a forward and reverse lead screw, and a clamping mounting plate.

[0019] Further, The bearing seat is fixed on the clamping mounting plate by bolts, and the clamping seat is connected with the bearing seat through the optical shaft; The forward and reverse lead screw is connected with the clamping seat through a nut sleeve, and the forward and reverse lead screw is connected with the bearing seat through a sliding bearing.

[0020] Further, The clamping seat is left and right two, and the lower parts of the two clamping seats oppositely form a V-shaped clamping space.

[0021] Further, The lower part of the clamping mounting plate has an opening corresponding to the position of the V-shaped clamping space.

[0022] Compared with the prior art, the present disclosure provides an automatic lead casting device suitable for high-voltage cable joint lead casting process, which has the following beneficial effects: 1. The lead strip is used to cast lead on the high-voltage cable joint by winding, and the lead material does not need to be heated and melted separately, but is heated and melted in real time during the coating process.

[0023] 2. The heating and lead casting of the aluminum sheath are carried out at the same time, the aluminum sheath does not need to be heated as a whole, the temperature is uncontrollable, and the cable insulation layer is easy to damage.

[0024] 3. The lead is wound and coated at the same time, which increases the real-time nature of lead coating and ensures the density of the lead joint.

[0025] Other features and advantages of the present disclosure will be set forth in the descriptions that follow and in part will be apparent from the description or can be learned by practice of the present disclosure. The purposes and other advantages of the present disclosure will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Figure 1 A perspective structural schematic diagram of an automatic lead casting device (working state) suitable for a high-voltage cable joint lead casting process according to an embodiment of the present disclosure is shown. Figure 2 A perspective structural schematic diagram of an outer rotor slip ring device according to an embodiment of the present disclosure is shown. Figure 3 An axial cross-sectional structural schematic diagram of an outer rotor slip ring device according to an embodiment of the present disclosure is shown. Figure 4 A partial cross-sectional view schematic diagram of an outer rotor slip ring device according to an embodiment of the present disclosure is shown. Figure 5 A front view schematic diagram of an automatic lead casting device (working state) suitable for a high-voltage cable joint lead casting process according to an embodiment of the present disclosure is shown. Figure 6 A perspective structural schematic diagram of a cable clamp walking mechanism according to an embodiment of the present disclosure is shown. Figure 5 A right view schematic diagram of the structure shown. Figure 7 A perspective structural schematic diagram of a cable clamp walking mechanism according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the following will combine the drawings in the embodiments of the present disclosure to make a clear and complete description of the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are some of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present disclosure.

[0029] Figure 1 A perspective structural schematic diagram of an automatic lead casting device suitable for a high-voltage cable joint lead casting process according to an embodiment of the present disclosure is shown.

[0030] An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to an embodiment of the present disclosure includes an outer rotor slip ring device 1, a winding mechanism 2, and a cable clamping and traveling mechanism 3.

[0031] The outer rotor slip ring device 1 is used to mount the winding mechanism 2 and supplies power to the winding mechanism 2 via brushes. See also... Figure 2 and Figure 3 The outer rotor slip ring device 1 includes two semi-circular inner stator mechanisms 1-1 and two semi-circular outer rotor mechanisms 1-5.

[0032] Several semicircular copper rings 1-2 are fixed to the two semicircular inner stator mechanisms 1-1 by screws 1-3. The semicircular copper rings 1-2 on each semicircular inner stator mechanism 1-1 are connected to an independent wire connector 1-4 by wires, and the two semicircular inner stator mechanisms 1-1 are each connected to a wire connector 1-4.

[0033] The two semicircular inner stator mechanisms 1-1 can be separably engaged vertically, and their positioning is preferably achieved through a convex-concave structure, a snap-fit ​​structure, or a hinge. A rotor drive motor frame 1-9 is fixed to the lower semicircular inner stator mechanism. (See appendix) Figure 4 Several semicircular electric slip rings 1-13 are fixedly installed on the outer surface of each semicircular inner stator mechanism. Each semicircular electric slip ring 1-13 is in conductive contact with at least one semicircular copper ring 1-2. When two semicircular inner stator mechanisms 1-1 are engaged, the semicircular electric slip rings 1-13 on the upper and lower semicircular inner stator mechanisms 1-1 form a complete circular electric slip ring.

[0034] Near the two ends of the outer surfaces of the two semicircular inner stator mechanisms 1-1, semicircular copper sleeves 1-6 are fixedly installed. The axial section of the semicircular copper sleeves 1-6 has an L-shape that contacts the semicircular outer rotor mechanism. After the two semicircular inner stator mechanisms 1-1 are engaged, the semicircular copper sleeves 1-6 on the outer surfaces of the two ends form a complete circular sleeve to support the two semicircular outer rotor mechanisms 1-5.

[0035] Two semi-circular outer rotor mechanisms 1-5 are mounted on the semi-circular copper sliding sleeves 1-6 of the two semi-circular inner stator mechanisms 1-1, and are connected as a whole circular outer rotor through hinges 1-7 and locking mechanisms.

[0036] like Figure 4 As shown, brush holders 1-11 are mounted on the two semicircular outer rotor mechanisms 1-5, and brushes 1-12 are mounted on the brush holders 1-11. When the two semicircular outer rotor mechanisms 1-5 are locked, the brushes 1-12 form electrical contact with the semicircular slip rings 1-13 on the two semicircular inner stator mechanisms 1-1. Preferably, the brushes 1-12 are flexible brushes.

[0037] Two half circle outer rotor mechanisms 1-5 are fixedly installed on the outer surface of the same end, and two half circle outer rotor gears 1-8 are fixedly installed on the outer surface of the same end.

[0038] The outer rotor driving motor 1-10 is fixedly installed on the rotor driving motor frame 1-9, and the outer rotor driving motor 1-10 is fixedly installed on the rotor driving motor frame 1-9.

[0039] Referring to the drawings Figure 5 and the drawings Figure 6 The winding mechanism 2 installed on one of the half circle outer rotor mechanisms includes a mounting plate 2-9, a torsion maintainer 2-1, a lead belt pulley 2-2, an aluminum sheath hot air gun 2-3, a lead belt hot air gun 2-4, an aluminum sheath temperature sensor 2-5, a lead belt temperature sensor 2-6, and an elastic coating head 2-7. The aluminum sheath hot air gun 2-3 and the lead belt hot air gun 2-4 are powered by the brush 1-12.

[0040] The mounting plate 2-9 is fixedly installed on one of the half circle outer rotor mechanisms. The torsion maintainer 2-1, the aluminum sheath hot air gun 2-3, the lead belt hot air gun 2-4, the aluminum sheath temperature sensor 2-5, the lead belt temperature sensor 2-6, and the elastic coating head 2-7 are respectively installed on the mounting plate 2-9. The lead belt pulley 2-2 is installed on the torsion maintainer 2-1.

[0041] As a preferred means, the winding mechanism 2 further includes an aluminum sheath hot air gun adjusting mechanism 2-8, and the aluminum sheath hot air gun 2-3 is connected to the aluminum sheath hot air gun adjusting mechanism 2-8 through a ceramic hose 2-10.

[0042] Referring to the drawings Figure 1 and the drawings Figure 7 The cable clamp walking mechanism 3 includes two groups of V-shaped clamping devices 4 and a plurality of connecting rods 4-7. The plurality of connecting rods 4-7 are equal in length and arranged in parallel. The two groups of V-shaped clamping devices 4 are fixedly installed at the two ends of the plurality of connecting rods 4-7.

[0043] A lead screw motor 3-2 is fixedly installed on the V-shaped clamping device 4 close to the outer rotor slip ring device 1. The lead screw motor 3-2 is engaged with an optical shaft 3-1, and the two ends of the optical shaft 3-1 are supported on the two groups of V-shaped clamping devices 4 through sliding bearings 4-8. The cable clamp walking mechanism 3 is fixedly connected to the rotor driving motor frame 1-9 on the half circle outer rotor mechanism through the optical shaft 3-1.

[0044] The V-shaped clamping device 4 comprises a bearing seat 4-1, a clamping seat 4-2, a forward and reverse screw 4-3, and a clamping mounting plate 4-4. The bearing seat 4-1 is fixed on the clamping mounting plate 4-4 by bolts, and the clamping seat 4-2 is connected with the bearing seat 4-1 through a light shaft 4-5. The forward and reverse screw 4-3 is connected with the clamping seat 4-2 through a nut sleeve 4-6, and the forward and reverse screw 4-3 is connected with the bearing seat 4-1 through a sliding bearing. The clamping seat 4-2 is in two, and the lower parts of the two clamping seats 4-2 oppositely form a V-shaped clamping space. The clamping mounting plate 4-4 has a large-size opening at a position corresponding to the V-shaped clamping space, which is sufficient to accommodate the diameter of the largest existing high-voltage cable.

[0045] The processing process of the embodiments of the present disclosure is described as follows: When the cable needs to be processed, the cable clamping walking mechanism 3 is fixed with the cable through the clamping seat 4-2, the outer rotor slip ring device 1 is opened through the hinge 1-7 (first open the two semicircular outer rotor mechanism 1-5, and then open the two semicircular inner stator mechanism 1-1), and then buckled at the cable joint position, the outer rotor slip ring device 1 is connected with the clamping walking mechanism through the light shaft 3-1, and the screw motor 3-2 is installed (to ensure that the light shaft 3-1 has a suitable stroke). The winding mechanism 2 is installed on the outer rotor slip ring device 1.

[0046] After the above installation is completed, the lead belt pulley 2-2 is adjusted, the lead belt is preliminarily fixed on the aluminum sheath by using the elastic coating head 2-7, the aluminum sheath hot air gun 2-3 heats the aluminum sheath, the aluminum sheath temperature sensor 2-5 monitors the surface temperature of the aluminum sheath, and the lead belt hot air gun 2-4 heats the lead belt. When the temperature is appropriate, the outer rotor driving motor 1-10 is started, the outer rotor slip ring device 1 is driven through the outer rotor driving gear, and the installation plate 2-9 is driven to rotate.

[0047] The installation plate 2-9 rotates around the cable, the lead belt installed on the lead belt pulley 2-2 is dragged and wound on the aluminum sheath, the screw motor 3-2 drives the outer rotor slip ring device 1 to move forward and backward, the lead belt is completely wound on the aluminum sheath and the intermediate joint, and the elastic coating head 2-7 is pressed and flattened to complete the lead casting work.

[0048] Although the present disclosure is described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An automatic lead-enameling device suitable for the lead-enameling process of high-voltage cable joints, characterized in that, Includes an external rotor slip ring device, a winding mechanism, and a cable clamping and traveling mechanism; The outer rotor slip ring device includes two semi-circular inner stator mechanisms and two semi-circular outer rotor mechanisms; the two semi-circular inner stator mechanisms can be separably fastened together, and a rotor drive motor frame is fixed on the lower semi-circular inner stator mechanism; several semi-circular electric slip rings are fixedly installed on the outer surface of each semi-circular inner stator mechanism; semi-circular copper slip sleeves are fixedly installed on the outer surfaces of the two semi-circular inner stator mechanisms near both ends. Two semi-circular outer rotor mechanisms are mounted on the semi-circular copper sliding sleeves of two semi-circular inner stator mechanisms, and are connected as a whole circular outer rotor by hinges and locking mechanisms; brushes are installed on the two semi-circular outer rotor mechanisms, and the brushes form electrical contact with the semi-circular slip rings on the two semi-circular inner stator mechanisms. Two semi-circular outer rotor mechanisms have semi-circular outer rotor drive gears fixedly installed on their outer surfaces near the same end; the outer rotor drive motor is fixedly installed on the rotor drive motor frame, and the output end of the outer rotor drive motor is fixed with a small gear that meshes with the outer rotor drive gear.

2. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 1, characterized in that, Each of the two semicircular inner stator mechanisms has several semicircular copper rings fixed to it by screws; each of the semicircular copper rings on the semicircular inner stator mechanism is connected to an independent wire connector by a wire, and each of the two semicircular inner stator mechanisms is connected to a wire connector.

3. An automatic lead-enameling device suitable for lead-enameling processes of high-voltage cable joints according to claim 1 or 2, characterized in that, The outer rotor slip ring device is used to mount the winding mechanism and to supply power to the winding mechanism via brushes; the winding mechanism is mounted on one of the semicircular outer rotor mechanisms.

4. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 3, characterized in that, The winding mechanism includes a mounting plate, a torque retainer, a lead belt pulley, an aluminum-sheathed hot air gun, a lead belt hot air gun, an aluminum-sheathed temperature sensor, a lead belt temperature sensor, and an elastic coating head.

5. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 4, characterized in that, The aluminum-sheathed hot air gun and the lead-belt hot air gun are powered by brushes.

6. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 4 or 5, characterized in that, The mounting plate is fixed to one of the semi-circular outer rotor mechanisms; Torque retainer, aluminum-sheathed hot air gun, lead-stripe hot air gun, aluminum-sheathed temperature sensor, lead-stripe temperature sensor, and elastic coating head are respectively mounted on the mounting plate; The lead belt pulley is mounted on the torque retainer.

7. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 6, characterized in that, The winding mechanism also includes an aluminum sheath hot air gun adjustment mechanism; The aluminum-sheathed hot air gun is connected to the adjustment mechanism of the aluminum-sheathed hot air gun via a ceramic hose.

8. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 1, characterized in that, The cable clamping and traveling mechanism includes two sets of V-shaped clamping devices and several connecting rods.

9. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 8, characterized in that, Several connecting rods of equal length are arranged in parallel alignment, and two sets of V-shaped clamping devices are fixed at both ends of the connecting rods respectively.

10. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 8 or 9, characterized in that, The cable clamping and traveling mechanism is fixedly connected to the rotor drive motor frame on the semi-circular outer rotor mechanism via an optical shaft.

11. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 10, characterized in that, A lead screw motor is fixedly installed on the V-shaped clamping device near the outer rotor slip ring device. The lead screw motor meshes with the optical shaft, and the two ends of the optical shaft are supported on two sets of V-shaped clamping devices by sliding bearings.

12. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 11, characterized in that, The V-type clamping device includes a bearing housing, a clamping seat, positive and negative lead screws, and a clamping mounting plate.

13. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 12, characterized in that, The bearing housing is fixed to the clamping mounting plate by bolts, and the clamping seat is connected to the bearing housing by a light shaft; The forward and reverse leadscrews are connected to the clamping seat via a nut sleeve, and the forward and reverse leadscrews are connected to the bearing seat via a sliding bearing.

14. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 13, characterized in that, There are two clamping seats, one on the left and one on the right, and the lower parts of the two clamping seats face each other to form a V-shaped clamping space.

15. An automatic lead-enameling device for high-voltage cable joint lead-enameling process according to claim 14, characterized in that, The lower part of the clamping mounting plate has an opening corresponding to the V-shaped clamping space.

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