Support for welding cable flexible joint conductor

Abstract

The utility model relates to the technical field of cable production and construction auxiliary equipment, in particular to a support for welding a cable flexible joint conductor. The utility model discloses a support for welding a cable flexible joint conductor, which comprises a fixed frame and a movable frame which are oppositely arranged, and the fixed frame and the movable frame are respectively provided with a lower die frame, a cooling die and an upper die frame; the lower die frame is in a U shape, the upper die frame is in an inverted U shape, and the two ends of the lower die frame are correspondingly connected with the two ends of the upper die frame. Limiting bosses are arranged on the two sides of the interior of the lower mold frame, and limiting grooves corresponding to the limiting bosses are formed in the bottom of the cooling mold. The inner sides of the two ends of the upper die frame are in sliding fit with the cooling die. The technical problem to be solved by the utility model is to develop the support for welding the cable flexible joint conductor, which has a simple structure and is convenient for fixing a cooling mold.

Description

Technical Field

[0001] The utility model relates to the technical field of cable production and construction auxiliary equipment, in particular to a bracket for welding cable flexible joint conductors. Background Art

[0002] As an important power grid equipment, power cables play an important role in transmitting energy and information and are widely used. Cables can be divided into land cables and submarine cables according to the use scenario. The construction environment of land cable joints is simpler and more convenient than that of submarine cables. Generally, prefabricated intermediate joints are used to connect cables at the construction site. This method has the characteristics of high efficiency, high reliability and low cost. Submarine cables are one of the most important equipment in submarine power transmission projects. They are widely used in power transmission projects such as power transmission across rivers and straits, power supply to islands, power grid interconnection, power supply to offshore drilling platforms, and grid connection between offshore wind farms and land power grids. The construction environment of submarine cables is complex, and the installation after the joint has high requirements on mechanical properties such as cable bending. It is not suitable for joint processing at the offshore laying site. Therefore, submarine cables generally have long lengths and intermediate joints completed in the factory.

[0003] Among them, the submarine cable flexible joint technology is an important problem that restricts the development of submarine cables. The conductor welding process in the flexible joint technology needs to be assisted by a tooling bracket. Because the welding is carried out at high temperature, in order to reduce the temperature of the conductor welding, a cooling mold is often provided inside the existing welding bracket. In order to facilitate the reinforcement of the conductor, the cooling mold is divided into two parts, the upper and lower parts, which need to be closed during operation; and for cables of different diameters, the mold needs to be replaced. How to better fix the cooling mold, ensure the accuracy of the mold closing, and improve the efficiency of mold change are technical problems that technicians in this field need to solve.

[0004] Therefore, those skilled in the art are committed to developing a cable flexible joint conductor welding bracket which has a simple structure and is convenient for fixing a cooling mold. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the utility model discloses a bracket for welding a cable flexible joint conductor, and the technical problem to be solved is to provide a bracket for welding a cable flexible joint conductor which has a simple structure and is convenient for fixing a cooling mold.

[0006] To achieve the above-mentioned purpose, the utility model provides a bracket for welding conductors of cable flexible joints, comprising a fixed frame and a movable frame arranged relatively to each other, wherein a lower mold frame, a cooling mold and an upper mold frame are respectively provided on the fixed frame and the movable frame; the lower mold frame is in a positive U-shape, and the upper mold frame is in an inverted U-shape, and the two ends of the lower mold frame are correspondingly connected to the two ends of the upper mold frame by bolts; limiting bosses are provided on both sides of the interior of the lower mold frame, and limiting grooves corresponding to the limiting bosses are provided on the bottom of the cooling mold; the inner sides of the two ends of the upper mold frame are slidably matched with the cooling mold.

[0007] Preferably, each end of the lower mold frame is respectively provided with two connecting plates parallel to each other. The plate-shaped configuration can reduce the material consumption of the lower mold frame and reduce the cost. A first through hole is provided at the end of each connecting plate. Each end of the upper mold frame is respectively provided with a connecting foot, and each connecting foot can be correspondingly inserted into the gap between the two connecting plates. A second through hole is provided at the end of each connecting foot. Fastening bolts are provided in the first through hole and the second through hole. The bolt connection method is used to facilitate disassembly and assembly, thereby improving maintenance efficiency.

[0008] Preferably, the thickness of the connecting foot is smaller than the thickness of the end of the upper mold frame, that is, the connecting foot is located in the middle of the end and is an integrally formed protruding block. A step is formed between the connecting foot and the end, and the step at the connecting foot is offset from the connecting plate, thereby ensuring the balance and stability between the upper mold frame and the lower mold frame.

[0009] Preferably, a threaded hole is provided on the cross bar connecting the two ends of the upper mold frame, and a first screw rod parallel to the two ends of the mold frame is matched in the threaded hole, and a limit rotating head is provided at the bottom end of the first screw rod; a reinforcing plate movably sleeved on the first screw rod is provided on the upper side of the limit rotating head, that is, a through hole for the first screw rod to pass through is opened on the reinforcing plate, the through hole of the reinforcing plate is interference fit with the first screw rod, and the diameter of the through hole of the reinforcing plate is smaller than the diameter of the limit rotating head, and the limit rotating head plays a role of limiting support for the reinforcing plate. A fixed block is detachably connected to the bottom of the reinforcing plate, and the fixed block is provided with a groove that is rotatably matched with the limit rotating head.

[0010] Preferably, the position-limiting rotating head is hemispherical, and the spherical arc surface faces one side of the fixed block, and the spherical arc surface cooperates with the groove on the fixed block, so that after the reinforcement plate and the fixed block are connected together, the position-limiting rotating head can be completely accommodated in the groove, and after the first screw is turned, the reinforcement plate and the fixed block will not be rotated. When it is necessary to press the upper mold of the cooling mold, the reinforcement plate and the fixed block are connected together, so that the fixed block is pressed on the cooling mold, and the first screw is turned to make the fixed block further press the upper mold of the cooling mold. When the cooling mold needs to be replaced, the first screw is turned to move the fixed block away from the cooling mold, and the fixed block is lifted, and the cooling mold can be replaced, which is convenient and quick.

[0011] Preferably, the reinforcing plate and the fixing block are connected by screws. Of course, other detachable connection methods may also be used.

[0012] Preferably, the tops of the fixed frame and the movable frame are respectively provided with integrally formed support tubes, the bottom of the lower mold frame is provided with connecting holes, and support shafts are fixed in the support tubes and the connecting holes, thereby installing the lower mold frame on the fixed frame and the movable frame.

[0013] Preferably, the support tube is provided with a radial threaded hole, in which a bolt that can abut against the support shaft is matched, and the bolt can fasten the support shaft to the support tube; a keyway is provided in the connection hole, and an axial key that matches the keyway is provided on the support shaft to ensure that the lower mold frame and the support shaft do not rotate relative to each other. A fixing nut head and a threaded reinforcement nut are also provided at both ends of the support shaft, respectively, to ensure that the support shaft does not move in the axial direction.

[0014] Preferably, the utility model provides a bracket for welding conductors of cable flexible joints, further comprising a base plate, one end of the base plate being fixed to the fixed frame, and the other end of the base plate being fixed to a support seat, a second screw being rotatably mounted on the support seat and the fixed frame, the second screw being threadedly engaged with the movable frame; a limit rod is also provided on the support seat and the fixed frame, the limit rod being rotatably engaged with the movable frame, and the movable frame can be controlled to move closer to or away from the fixed frame by rotating the second screw.

[0015] The beneficial effects of the utility model are:

[0016] Through the design of the upper mold frame and the lower mold frame, the limiting boss on the lower mold frame can just cooperate with the limiting groove of the cooling mold to determine the bottom position of the cooling mold, and the cooling mold can also slide inside the two ends of the upper mold frame. Therefore, the upper mold frame and the lower mold frame can simultaneously limit the cooling mold, which is convenient for fixing the cooling mold. At the same time, the ends of the upper mold frame and the lower mold frame are connected by bolts, which has a simple structure and is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a specific implementation method of the bracket of the utility model;

[0018] Figure 2 It is an exploded schematic diagram of a component on one side of a fixing frame of the bracket of the utility model;

[0019] Figure 3 yes Figure 2 A partial enlarged schematic diagram is shown in the figure.

[0020] In the above drawings: 10, fixed frame; 1, lower mold frame; 11, connecting plate; 111, first through hole; 12, limiting boss; 13, connecting hole; 2, cooling mold; 21, limiting groove; 3, upper mold frame; 31, connecting foot; 32, second through hole; 4, first screw; 41, limiting rotary head; 42, reinforcement plate; 43, fixed block; 5, support cylinder; 6, support shaft; 20, movable frame; 30, bottom plate; 40, support seat; 50, second screw; 60, limiting rod. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as a limitation on the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] like Figure 1 and Figure 2As shown, the utility model provides a support for welding conductors of cable flexible joints, including a fixed frame 10 and a movable frame 20 arranged relatively. The fixed frame 10 and the movable frame 20 are respectively provided with a lower mold frame 1, a cooling mold 2 and an upper mold frame 3. The tops of the fixed frame 10 and the movable frame 20 are respectively provided with an integrally formed support cylinder 5, and the bottom of the lower mold frame 1 is provided with a connecting hole 13, and a support shaft 6 is fixed in the support cylinder 5 and the connecting hole 13, thereby installing the lower mold frame 1 on the fixed frame 10 and the movable frame 20. In this embodiment, a radial threaded hole is provided on the support cylinder 5, and a bolt that can be abutted against the support shaft 6 is matched in the radial threaded hole, and the bolt can fasten the support shaft 6 to the support cylinder 5. A keyway is provided in the connecting hole 13, and an axial key matched with the keyway is provided on the support shaft 6 to ensure that the lower mold frame 1 and the support shaft 6 will not rotate with each other. A fixing nut head and a reinforcing nut matched with a thread are also provided at both ends of the support shaft 6, thereby ensuring that the support shaft 6 does not move in the axial direction. In addition, the lower mold frame 1 is in a positive U shape, the upper mold frame 3 is in an inverted U shape, and the two ends of the lower mold frame 1 are connected to the two ends of the upper mold frame 3 by bolts; the inner sides of the lower mold frame 1 are provided with limiting bosses 12, and the bottom of the cooling mold 2 is provided with limiting grooves 21 corresponding to the limiting bosses 12; the inner sides of the two ends of the upper mold frame 3 are slidably matched with the cooling mold 2.

[0023] like Figure 1 As shown, the utility model provides a bracket for welding conductors of cable flexible joints, which also includes a base plate 30, one end of which is fixed to a fixed frame 10, and the other end of the base plate 30 is fixed to a support seat 40, and a second screw 50 is rotatably installed on the support seat 40 and the fixed frame 10, and the second screw 50 is threadedly matched with the movable frame 20; a limit rod 60 is also provided on the support seat 40 and the fixed frame 10, and the limit rod 60 is rotatably matched with the movable frame 20, and the second screw 50 is rotated to control the movable frame 20 to approach or move away from the fixed frame 10.

[0024] In the above embodiment, through the design of the upper mold frame 3 and the lower mold frame 1, the limiting boss 12 on the lower mold frame 1 can just cooperate with the limiting groove 21 of the cooling mold 2 to determine the bottom position of the cooling mold 2, and the cooling mold 2 can also slide inside the two ends of the upper mold frame 3, so the upper mold frame 3 and the lower mold frame 1 can simultaneously limit the cooling mold 2, which is convenient for fixing the cooling mold 2. At the same time, the ends of the upper mold frame 3 and the lower mold frame 1 are connected by bolts, which has a simple structure and is easy to disassemble and assemble.

[0025] At the same time, a threaded hole is provided on the cross bar connecting the two ends of the upper mold frame 3, and a first screw rod 4 parallel to the two ends of the mold frame is matched in the threaded hole, and a limit rotary head 41 is provided at the bottom end of the first screw rod 4. A reinforcing plate 42 movably sleeved on the first screw rod 4 is provided on the upper side of the limit rotary head 41, that is, a through hole is provided on the reinforcing plate 42 for the first screw rod 4 to pass through, and the through hole of the reinforcing plate 42 is interference fit with the first screw rod 4, and the diameter of the through hole of the reinforcing plate 42 is smaller than the diameter of the limit rotary head 41, and the limit rotary head 41 plays a role of limiting support for the reinforcing plate 42. A fixing block 43 is detachably connected to the bottom of the reinforcing plate 42. In this embodiment, the reinforcing plate 42 and the fixing block 43 are connected by screws, and of course other detachable connection methods can also be used. The fixing block 43 is provided with a groove that rotates with the limit rotary head 41. Specifically, the limit rotating head 41 is hemispherical, and the spherical arc surface faces one side of the fixed block 43, and the spherical arc surface cooperates with the groove on the fixed block 43, so that after the reinforcing plate 42 and the fixed block 43 are connected together, the limit rotating head 41 can be completely accommodated in the groove, and after the first screw 4 is turned, the reinforcing plate 42 and the fixed block 43 will not be rotated, but will only be moved up and down. When it is necessary to press the upper mold of the cooling mold 2, the reinforcing plate 42 and the fixed block 43 are connected together, so that the fixed block 43 is pressed on the cooling mold 2, and the first screw 4 is turned to make the fixed block 43 further press the upper mold of the cooling mold 2. When the cooling mold 2 needs to be replaced, the first screw 4 is turned to make the fixed block 43 away from the cooling mold 2, and the fixed block 43 is lifted, and the cooling mold 2 can be replaced, which is convenient and quick.

[0026] like Figure 3 As shown, each end of the lower mold frame 1 is provided with two parallel connecting plates 11. The plate shape can reduce the material consumption of the lower mold frame 1 and reduce the cost. A first through hole 111 is provided at the end of each connecting plate 11. Each end of the upper mold frame 3 is provided with a connecting foot 31. Each connecting foot 31 can be correspondingly inserted into the gap between the two connecting plates 11. A second through hole 32 is provided at the end of each connecting foot 31. The first through hole 111 and the second through hole 32 are provided with fastening bolts. The bolt connection method is convenient for disassembly and assembly, and improves the maintenance efficiency. Specifically, the thickness of the connecting foot 31 is less than the thickness of the end of the upper mold frame 3, that is, the connecting foot 31 is in the middle of the end, and is an integrally formed protruding block. A step is formed between the connecting foot 31 and the end, and the step at the connecting foot 31 is against the connecting plate 11, which can ensure the balance and stability between the upper mold frame 3 and the lower mold frame 1.

[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A bracket for welding conductors of cable flexible joints, characterized in that: The invention comprises a fixed frame (10) and a movable frame (20) which are arranged opposite to each other, wherein a lower mold frame (1), a cooling mold (2) and an upper mold frame (3) are respectively provided on the fixed frame (10) and the movable frame (20); the lower mold frame (1) is in a positive U shape, and the upper mold frame (3) is in an inverted U shape, and the two ends of the lower mold frame (1) are correspondingly connected to the two ends of the upper mold frame (3); the inner sides of the lower mold frame (1) are provided with limiting bosses (12), and the bottom of the cooling mold (2) is provided with limiting grooves (21) corresponding to the limiting bosses (12); the inner sides of the two ends of the upper mold frame (3) are slidably matched with the cooling mold (2).

2. The cable flexible joint conductor welding bracket according to claim 1, characterized in that: Each end of the lower mold frame (1) is provided with two parallel connecting plates (11), and each end of the connecting plates (11) is provided with a first through hole (111); each end of the upper mold frame (3) is provided with a connecting foot (31), and each connecting foot (31) can be correspondingly inserted into the gap between the two connecting plates (11), and each end of the connecting foot (31) is provided with a second through hole (32), and the first through hole (111) and the second through hole (32) are provided with fastening bolts.

3. The cable flexible joint conductor welding bracket according to claim 2, characterized in that: The thickness of the connecting foot (31) is smaller than the thickness of the end of the upper mold frame (3), and the step at the connecting foot (31) abuts against the connecting plate (11).

4. The cable flexible joint conductor welding bracket according to claim 1, characterized in that: The upper mold frame (3) is provided with a threaded hole, in which a first screw rod (4) parallel to the two ends of the mold frame is fitted, and a limit rotating head (41) is provided at the bottom end of the first screw rod (4); a reinforcing plate (42) is provided on the upper side of the limit rotating head (41), and the reinforcing plate (42) and the first screw rod (4) are interference fit, and a fixing block (43) is detachably connected at the bottom of the reinforcing plate (42), and a groove is provided on the fixing block (43) for rotational fit with the limit rotating head (41).

5. The cable flexible joint conductor welding bracket according to claim 4, characterized in that: The position-limiting rotating head (41) is hemispherical.

6. The cable flexible joint conductor welding bracket according to claim 4, characterized in that: The reinforcing plate (42) and the fixing block (43) are connected via screws.

7. The cable flexible joint conductor welding bracket according to claim 4, characterized in that: The tops of the fixed frame (10) and the movable frame (20) are respectively provided with support tubes (5), the bottom of the lower mold frame (1) is provided with a connecting hole (13), and support shafts (6) are fixed inside the support tubes (5) and the connecting holes (13).

8. The cable flexible joint conductor welding bracket according to claim 7, characterized in that: The support tube (5) is provided with a radial threaded hole, in which a bolt capable of abutting against the support shaft (6) is fitted; the connection hole (13) is provided with a keyway, and the support shaft (6) is provided with an axial key that matches the keyway.

9. The cable flexible joint conductor welding bracket according to claim 1, characterized in that: The movable frame (20) further comprises a bottom plate (30), one end of which is fixed to the fixed frame (10), and the other end of which is fixed to a support seat (40), a second screw rod (50) being rotatably mounted on the support seat (40) and the fixed frame (10), the second screw rod (50) being threadedly matched with the movable frame (20); a limiting rod (60) is also provided on the support seat (40) and the fixed frame (10), the limiting rod (60) being rotatably matched with the movable frame (20).

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