Soft-clad steel core cable paying-off device

Abstract

The utility model relates to the technical field of electric wire and cable manufacturing, in particular to a soft-clad steel core cable pay-off device which aims at solving the problem that cable arrangement is disordered easily in the pay-off process and comprises a machine frame and a pay-off roller arranged in the machine frame, and a cable arrangement mechanism is arranged at the top of the machine frame. The cable arranging mechanism comprises a seat body, two cable arranging rollers, a guide rod and a driving part for driving the seat body to move, the guide rod is connected to the rack, the seat body is connected to the guide rod in a sliding mode, the two cable arranging rollers are arranged on the seat body in parallel in a spaced mode, an area for a cable to penetrate through is formed between the two cable arranging rollers, and the driving part drives the seat body to move. The driving part drives the seat body to move along the guide rod, an arc-shaped guide plate is installed on the top of the rack, a plurality of roller set units are distributed on the surface of the arc-shaped guide plate at intervals along an arc line, and a wire outlet guide wheel is arranged at the tail end of the arc-shaped guide plate. According to the invention, multi-dimensional optimization of the soft-clad steel core cable pay-off process is realized, local accumulation or winding is effectively avoided, and the stability and efficiency of pay-off are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of wire and cable manufacturing, in particular to a soft-packing steel-core cable wire pay-off device. BACKGROUND

[0002] As a key material in the field of power transmission and communication, soft-packing steel-core cable wire plays an irreplaceable role in high-voltage power transmission, rail transportation, and new energy power generation due to its unique structural design and performance advantages. Its core structure consists of a high-strength steel core as the load-bearing main body, and multiple layers of high-conductivity metal (such as aluminum or copper) and insulating materials wrapped outside, which not only ensures the mechanical strength of the cable, but also takes into account the conductivity efficiency and safety. In addition, with the development of smart grids and distributed energy, soft-packing steel-core cable wire needs to adapt to more complex laying environments (such as underground tunnels and offshore platforms), which puts higher requirements on tension control, wire arrangement accuracy, and equipment adaptability during the pay-off process.

[0003] However, during the complex path laying of soft-packing steel-core cable, due to the soft wrapping characteristics of the steel core and the outer insulating structure inside the cable, soft-packing steel-core cable is prone to structural deformation (such as misalignment of the steel core and the insulating layer, and outer layer wear) when paying off in a complex path, which leads to problems such as cable accumulation, winding, or sudden increase in local tension during the pay-off process, ultimately causing wire arrangement disorder, which needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem of easy wire arrangement disorder during the pay-off process, the application provides a soft-packing steel-core cable wire pay-off device.

[0005] The soft-packing steel-core cable wire pay-off device provided by the application adopts the following technical scheme:

[0006] A soft-packing steel-core cable wire pay-off device, comprising a rack, a pay-off roller arranged in the rack, a wire arrangement mechanism arranged on the top of the rack, the wire arrangement mechanism comprising a seat body, two wire arrangement rollers, a guide rod, and a driving member for driving the seat body to move, the guide rod being connected to the rack, the seat body being slidingly connected to the guide rod, the two wire arrangement rollers being arranged in parallel and at intervals on the seat body, a cable wire passing area being formed between the two wire arrangement rollers, the driving member driving the seat body to move along the guide rod, an arc-shaped guide plate being mounted on the top of the rack, a plurality of roller group units being distributed at intervals on the surface of the arc-shaped guide plate along an arc, and a wire outlet guide wheel being arranged at the end of the arc-shaped guide plate.

[0007] Due to the soft coating characteristics of the steel core inside the cable and the outer insulation structure, the soft-coated steel core cable is prone to structural deformation due to multi-directional stress (such as misalignment of the steel core and the insulation layer, and wear of the outer layer) when the cable is laid out along a complex path, resulting in cable accumulation, entanglement or sudden increase in local tension during the laying process, and ultimately causing cable arrangement disorder; by adopting the above technical solution, including a frame, the wire-laying roller is rotatably mounted on the frame, the wire-laying mechanism is mounted on the top of the frame, the wire-laying mechanism includes a base body, two wire-laying rollers, a guide rod and a driving member, the guide rod is mounted and fixed on the frame, the base body is slidably connected to the guide rod, the two wire-laying rollers are arranged in parallel and at intervals on the base body, and the wire-laying rollers are rotatably mounted on the base body, the driving member drives the base body to move along the guide rod, the arc-shaped guide plate is mounted on the top of the frame, a plurality of roller group units are distributed on the arc-shaped guide plate at intervals along the arc, and a guide wheel is installed at the end of the arc-shaped guide plate;

[0008] When the cable is paid out, the cable ends are passed through the two wire-arranging rollers of the wire-arranging mechanism in sequence before paying out, and the cable is guided through the inlet guide wheel to move along the surface of the arc-shaped guide plate, pass through each roller group unit in sequence, and finally pass through the cable groove of the outlet guide wheel to complete the initial positioning of the pay-out path, drive the pay-out roller to rotate, drive the wire reel to rotate and pay out the wire, and at the same time start the driving part to drive the base body to move along the guide rod, and the two wire-arranging rollers on the base body move synchronously accordingly, so that the paid-out cable is evenly arranged on the pay-out roller, avoiding accumulation or entanglement of the cable in a local area, and performing the pay-out operation along the predetermined path;

[0009] The arrangement of the wire arrangement mechanism, arc-shaped guide plate, roller group unit and outlet guide wheel helps to achieve multi-dimensional optimization of the pay-off process of the soft-coated steel core cable. The reciprocating seat in the wire arrangement mechanism drives the two wire arrangement rollers to move synchronously, so that the cables are evenly arranged on the pay-off rollers, effectively avoiding local accumulation or entanglement. The roller group units distributed along the arc on the surface of the arc-shaped guide plate disperse the multi-directional stress in the bending path of the cable, thereby suppressing the misalignment of the steel core and the insulation layer and the wear of the outer layer. The outlet guide wheel further positions the cable and reduces friction loss, solving the problems of pay-off deformation, entanglement and tension fluctuation caused by the soft coating characteristics of the soft-coated steel core cable, improving the stability and efficiency of the pay-off, and ensuring the quality of the cable.

[0010] Optionally, the driving member includes a screw and a servo motor, the screw is rotatably connected to the frame, the screw is arranged parallel to the guide rod, the screw passes through the seat body and is threadedly connected to the seat body, and the output end of the servo motor is connected to the end of the screw.

[0011] By adopting the above technical solution, the driving part includes a screw and a servo motor; through the setting of the driving part, the base body drives the two wire-arranging rollers in the wire-arranging mechanism to move back and forth, ensuring that the moving speed of the wire-arranging rollers is synchronized with the cable pay-out amount, thereby improving the controllability of the wire-arranging process.

[0012] Optionally, any of the roller group units comprises a first rod, two horizontal rollers, a second rod and a vertical roller, the first rod and the second rod are arranged on the arc-shaped guide plate, the two horizontal rollers are arranged on the first rod at intervals, the vertical roller is arranged on the second rod, and the vertical roller is located on the side of the horizontal roller away from the first rod.

[0013] By adopting the above technical scheme, the roller group unit comprises a first rod, two horizontal rollers, a second rod and a vertical roller; through the arrangement of the roller group unit, the passing cable can be stably supported, the horizontal stress generated when the cable is bent can be effectively dispersed, the abrasion of the insulation layer caused by friction can be reduced, the cable is limited and constrained, the dislocation or vertical deviation of the steel core and the insulation layer caused by multi-directional stress during the process of laying the cable in a complex path is prevented, and the smooth movement of the cable along the predetermined path is ensured.

[0014] Optionally, the transverse movement direction of the seat body is parallel to the axis of the laying roller, and the movement range covers the effective working length of the laying roller.

[0015] By adopting the above technical scheme, the transverse movement direction of the seat body is parallel to the axis of the laying roller, and the movement range covers the effective working length of the laying roller; through the arrangement of the movement range, the cooperative work of the cable arranging mechanism and the laying roller is realized, the dislocation or local accumulation of the cable caused by the deviation of the movement direction is avoided, and it is ensured that the laying roller can cover the surface of the laying roller during the whole process from the beginning to the end of the winding, so that the laying neatness of the soft package steel core cable during the laying process is improved.

[0016] Optionally, a wire inlet guide wheel for wire inlet is arranged between the seat body and the arc-shaped guide plate, and cable grooves are arranged on the surfaces of the wire outlet guide wheel and the wire inlet guide wheel.

[0017] By adopting the above technical scheme, the wire inlet guide wheel is installed between the seat body and the arc-shaped guide plate, and cable grooves are arranged on the surfaces of the wire outlet guide wheel and the wire inlet guide wheel; through the arrangement of the wire inlet guide wheel and the cable grooves, the accurate guidance of the laying path of the soft package steel core cable is realized, the wire inlet guide wheel serves as an initial positioning component before the cable enters the cable arranging mechanism, the deviation of the cable caused by shaking is effectively prevented, and the cable grooves further position the cable, so that the cable is stably output along the predetermined path.

[0018] Optionally, support components for supporting the laying roller are arranged on the two sides of the rack, a rotating shaft is arranged on the laying roller, both ends of the rotating shaft are rotatably connected to the two support components, and a rotating motor for driving is arranged at one end of the rotating shaft.

[0019] By adopting the technical scheme, the unwinding roller is rotatably installed on the support component of the rack through the rotating shaft, and one end of the rotating shaft is installed with the rotating motor; through the arrangement of the rotating shaft, the support component and the rotating motor, the driving control of the unwinding roller is realized, the two side support components provide support for the unwinding roller, the rotating shaft ensures the stable rotation of the unwinding roller, and the rotating motor accurately controls the rotating speed and start-stop of the unwinding roller, so that the stable and reliable unwinding process of the flexible steel-cored cable is ensured.

[0020] Optionally, one end of the rotating shaft away from the rotating motor is provided with a hand wheel.

[0021] By adopting the technical scheme, the hand wheel is installed on the rotating shaft; through the arrangement of the hand wheel, in the scenes of equipment debugging, thread traction or emergency shutdown, the manual mode can quickly respond to the operation demand, avoid the cable jamming or excessive stretching caused by the motor response delay, and improve the flexibility of the equipment.

[0022] Optionally, an actuator for lifting the unwinding roller is arranged on the rack, the number of the actuator is two groups, the two groups of actuators correspond to the two support components respectively, the actuator comprises a lifting rod and a lifting cylinder, the lifting rod is vertically arranged along the height direction of the rack, the support component is slidingly connected to the lifting rod, and the lifting cylinder is arranged on the top of the rack.

[0023] By adopting the technical scheme, the actuator is installed on the rack, and the actuator comprises a lifting rod and a lifting cylinder; through the arrangement of the actuator, the flexible adjustment of the height of the unwinding roller is realized, so that the equipment can quickly adapt to different requirements of the diameter of the wire coil or the unwinding height.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. Through the arrangement of the wire arranging mechanism, the arc-shaped guide plate, the roller group unit and the wire outlet guide wheel, the multi-dimensional optimization of the unwinding process of the flexible steel-cored cable is realized, the reciprocating seat in the wire arranging mechanism drives the two wire rollers to move synchronously, so that the cable is evenly arranged on the wire roller, and local accumulation or winding is effectively avoided, the roller group unit on the surface of the arc-shaped guide plate is distributed along the arc line, which disperses the multidirectional stress in the cable bending path, inhibits the dislocation of the steel core and the insulation layer and the wear of the outer layer, the wire outlet guide wheel further positions the cable and reduces the friction loss, solves the problems of unwinding deformation, winding and tension fluctuation of the flexible steel-cored cable caused by the soft covering characteristics, improves the stability and efficiency of the unwinding, and ensures the quality of the cable.

[0026] 2. Through the arrangement of the roller group unit, the passing cable line can be stably supported, the horizontal stress generated when the cable line is bent can be effectively dispersed, the abrasion of the insulation layer caused by friction can be reduced, the cable line can be limited and constrained, the dislocation or vertical deviation of the steel core and the insulation layer caused by multi-directional stress during the cable line laying process in a complex path can be prevented, and the smooth movement of the cable line along the predetermined path is ensured.

[0027] 3. Through the arrangement of the rotating shaft, the support component and the rotating motor, the driving control of the laying roller is realized, the two-side support component provides support for the laying roller, the rotating shaft ensures the stable rotation of the laying roller, and the rotating motor accurately controls the rotation speed and start-stop of the laying roller, so that the laying process of the soft steel core cable is stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic diagram of a soft steel core cable laying device in the embodiment of the present application.

[0029] Figure 2 is a structural schematic diagram for embodying the cable arranging mechanism in the embodiment of the present application.

[0030] Figure 3 is a structural schematic diagram for embodying the roller group unit in the embodiment of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS: 1, rack; 2, laying roller; 3, cable arranging mechanism; 31, seat body; 32, cable arranging roller; 33, guide rod; 34, driving piece; 341, screw rod; 342, servo motor; 4, arc-shaped guide plate; 5, roller group unit; 51, first rod piece; 52, horizontal roller; 53, second rod piece; 54, vertical roller; 6, outgoing cable guide wheel; 7, incoming cable guide wheel; 71, cable slot; 8, support component; 9, rotating shaft; 10, rotating motor; 11, hand wheel piece; 12, execution mechanism; 121, lifting rod; 122, lifting cylinder. DETAILED DESCRIPTION

[0032] The following will be described in detail with reference to the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0033] The embodiment of the present application discloses a soft steel core cable laying device. Referring to Figure 1 , the soft steel core cable laying device comprises a rack 1 and a laying roller 2 arranged in the rack 1. In the embodiment, the rack 1 is made of a plurality of steel materials welded together, and the laying roller 2 is wound with a cable line. Meanwhile, a cable arranging mechanism 3 is installed on the top of the rack 1, and the cable arranging mechanism 3 is used for arranging the cable line of the laying roller 2 to facilitate subsequent laying operation.

[0034] Referring to Figure 1 and Figure 2The two sides of the rack 1 are respectively provided with support components 8 for supporting the pay-off roller 2. The support components 8 can be corresponding supports. The pay-off roller 2 is provided with a rotating shaft 9. The two ends of the rotating shaft 9 are respectively rotatably connected to the two support components 8 through bearings. Meanwhile, the two ends of the rotating shaft 9 extend outwardly from the corresponding support components 8. A rotating motor 10 is mounted on the rack 1. The output end of the rotating motor 10 is connected to one end of the rotating shaft 9. In this embodiment, the rotating motor 10 adjusts the pay-off speed by controlling the rotating speed. The drive control of the pay-off roller 2 is realized. The two support components 8 provide support for the pay-off roller 2. The rotating shaft 9 ensures the stable rotation of the pay-off roller 2. The rotating motor 10 accurately controls the rotating speed and start-stop of the pay-off roller 2, thereby ensuring the stable and reliable pay-off process of the flexible steel-cored cable.

[0035] With reference to Figure 1 Meanwhile, the end of the rotating shaft 9 away from the rotating motor 10 is provided with a hand wheel member 11. In the scenes of equipment debugging, thread traction or emergency shutdown, the manual mode can quickly respond to the operation demand, avoid the cable jamming or excessive stretching caused by the motor response delay, and improve the flexibility of the equipment.

[0036] With reference to Figure 1 and Figure 2 An executing mechanism 12 is mounted on the rack 1. In this embodiment, the executing mechanism 12 is used for lifting the pay-off roller 2. The number of the executing mechanism 12 is two groups. The two groups of executing mechanisms 12 correspond to the two support components 8 respectively. Any executing mechanism 12 comprises a lifting rod 121 and a lifting cylinder 122. The lifting rod 121 is vertically arranged along the height direction of the rack 1. The support component 8 is slidingly connected to the lifting rod 121. In this embodiment, the number of the lifting rods 121 in the executing mechanism 12 is multiple. Meanwhile, the lifting cylinder 122 is mounted on the top of the rack 1. The lifting cylinder 122 is vertically arranged towards the bottom of the rack 1. The output end of the lifting cylinder 122 is connected to the support component 8. The flexible adjustment of the height of the pay-off roller 2 is realized, so that the equipment can quickly adapt to different requirements of the wire reel diameter or the pay-off height.

[0037] With reference to Figure 2 and Figure 3 The wire arranging mechanism 3 comprises a seat body 31, two wire arranging rollers 32, a guide rod 33 and a driving member 34. The guide rod 33 is mounted on the top of the rack 1. The guide rod 33 is arranged along the length direction of the pay-off roller 2. The seat body 31 is slidingly connected to the guide rod 33. The two wire arranging rollers 32 are parallelly and spacedly arranged on the seat body 31. The wire arranging roller 32 is rotatably connected to the seat body 31 through a bearing. The area for the cable to pass through is formed between the two wire arranging rollers 32.

[0038] With reference to Figure 2 and Figure 3The driving member 34 comprises a lead screw 341 and a servo motor 342. The lead screw 341 is rotationally connected to the rack 1. In this embodiment, the lead screw 341 is mounted on the top of the rack 1 through a bearing seat and a corresponding bearing. The lead screw 341 is arranged in parallel with the guide rod 33. The lead screw 341 penetrates through the seat body 31 and is threadedly connected with the seat body 31. The output end of the servo motor 342 is connected to the end of the lead screw 341. The servo motor 342 can realize forward and reverse rotation. Meanwhile, the transverse movement direction of the seat body 31 is parallel to the axis of the pay-off roller 2, and the movement range covers the effective working length of the pay-off roller 2, so as to realize the reciprocating movement of the two pay-off rollers 32 in the cable arranging mechanism 3 driven by the seat body 31. The movement speed of the pay-off roller 32 is synchronized with the cable pay-off amount, and the controllability of the pay-off process is improved.

[0039] With reference to Figure 2 and Figure 3 , the top of the rack 1 is further provided with an arc-shaped guide plate 4. A plurality of roller group units 5 are arranged on the surface of the arc-shaped guide plate 4 in a spaced manner along an arc. In this embodiment, the arc-shaped guide plate 4 can be replaced according to the actual pay-off condition. The seat body 31 is rotationally connected with the arc-shaped guide plate 4. A wire inlet guide wheel 7 is rotationally mounted between the seat body 31 and the arc-shaped guide plate 4. A wire outlet guide wheel 6 is rotationally mounted at the end of the arc-shaped guide plate 4. The wire inlet guide wheel 7 and the wire outlet guide wheel 6 are both mounted on the top of the rack 1. Cable grooves 71 are formed on the surfaces of the wire inlet guide wheel 7 and the wire outlet guide wheel 6, so as to realize the accurate guidance of the pay-off path of the flexible steel-cored cable. The wire inlet guide wheel 7 serves as an initial positioning component before the cable enters the cable arranging mechanism 3, which effectively prevents the cable from shaking and deviating. Meanwhile, the cable grooves 71 further position the cable during the pay-off, so as to ensure the smooth output of the cable along the predetermined path.

[0040] With reference to Figure 3 In this embodiment, the number of roller group units 5 is preferably three. Any roller group unit 5 comprises a first rod member 51, two horizontal rollers 52, a second rod member 53 and a vertical roller 54. The first rod member 51 and the second rod member 53 are arranged on the arc-shaped guide plate 4. The two horizontal rollers 52 are arranged on the first rod member 51 in a spaced manner. The horizontal rollers 52 are rotationally mounted on the first rod member 51. The vertical roller 54 is arranged on the second rod member 53. The vertical roller 54 is rotationally mounted on the second rod member 53. Meanwhile, the vertical roller 54 is located on the side of the horizontal rollers 52 away from the first rod member 51. The vertical roller 54 is used for shielding the opening formed by the two horizontal rollers 52, so as to prevent the cable from escaping from the opening during the pay-off. The cable passing through the vertical roller 54 can be stably supported, the horizontal stress generated when the cable is bent can be effectively dispersed, the abrasion of the insulation layer caused by friction can be reduced, the cable can be limited and constrained, the steel core and the insulation layer can be prevented from being dislocated or vertically deviated due to the multi-directional stress during the pay-off in a complex path, and the smooth movement of the cable along the predetermined path is ensured.

[0041] The implementation principle of the soft package steel core cable line pay-off device is as follows: when the cable line is payed off, the cable line head is sequentially threaded between the two line rollers 32 of the line arrangement mechanism 3 before pay-off, the line cable is guided to move along the surface of the arc-shaped guide plate 4 through the wire entry guide wheel 7, sequentially passes through each roller group unit 5, and finally passes through the cable slot 71 of the wire exit guide wheel 6, to complete the initial positioning of the pay-off path, the rotary motor 10 is started to drive the rotary shaft 9 of the pay-off roller 2 to rotate, to drive the wire roll to rotate and pay off the line, the rotary motor 10 adjusts the pay-off speed by controlling the rotating speed, at the same time, the driving member 34 (servo motor 342) is started to drive the lead screw 341 to rotate, to drive the seat body 31 to reciprocate along the guide rod 33, and the two line rollers 32 on the seat body 31 move synchronously, so that the payed-off cable line is uniformly arranged on the pay-off roller 2, to avoid the cable to be accumulated or wound in a local area, and to be payed off along the predetermined path;

[0042] Through the arrangement of the line arrangement mechanism 3, the arc-shaped guide plate 4, the roller group unit 5 and the wire exit guide wheel 6, the multi-dimensional optimization of the soft package steel core cable pay-off process is realized, the seat body 31 in the line arrangement mechanism 3 drives the two line rollers 32 to move synchronously, so that the cable line is uniformly arranged on the pay-off roller 2, to effectively avoid the local accumulation or winding, the roller group units 5 distributed on the surface of the arc-shaped guide plate 4 along the arc line disperse the multi-directional stress in the cable bending path, to suppress the dislocation of the steel core and the insulation layer and the wear of the outer layer, and the wire exit guide wheel 6 further positions the cable line, to reduce the friction loss, to solve the problems of the pay-off deformation, winding and tension fluctuation of the soft package steel core cable caused by the soft package characteristic, to improve the stability and efficiency of the pay-off, and to guarantee the cable quality.

[0043] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A soft-coated steel core cable pay-off device, characterized by: The cam is connected to the base via a plurality of channels, the plurality of channels are connected to the base via a plurality of channels, and the plurality of channels are connected to the base via a plurality of channels.

2. A soft-coated steel core cable pay-off device according to claim 1, characterized in that: The driving member includes a screw and a servo motor. The screw is rotatably connected to the frame, the screw is arranged parallel to the guide rod, the screw passes through the seat body and is threadedly connected to the seat body, and the output end of the servo motor is connected to the end of the screw.

3. The soft-coated steel core cable pay-off device according to claim 1, characterized in that: Any of the roller group units includes a first rod, two horizontal rollers, a second rod and a vertical roller. The first rod and the second rod are both arranged on an arc-shaped guide plate. The two horizontal rollers are arranged on the first rod at intervals, and the vertical roller is arranged on the second rod. The vertical roller is located on the side of the horizontal roller away from the first rod.

4. The soft-coated steel core cable pay-off device according to claim 1, characterized in that: The lateral movement direction of the seat body is parallel to the axis of the pay-off roller, and the movement range covers the effective working length of the pay-off roller.

5. The soft-coated steel core cable pay-off device according to claim 1, characterized in that: An incoming wire guide wheel for incoming wires is provided between the seat body and the arc-shaped guide plate, and cable grooves are provided on the surfaces of the outgoing wire guide wheel and the incoming wire guide wheel.

6. The soft-coated steel core cable pay-off device according to claim 1, characterized in that: Support components for supporting the pay-off roller are respectively provided on both sides of the frame. The pay-off roller is provided with a rotating shaft. Both ends of the rotating shaft are rotatably connected to the two support components respectively. One end of the rotating shaft is provided with a rotating motor for driving.

7. A soft-coated steel core cable pay-off device according to claim 6, characterized in that: A hand wheel is provided at one end of the rotating shaft away from the rotating motor.

8. The soft-coated steel core cable pay-off device according to claim 6, characterized in that: The frame is provided with an actuator for raising and lowering the pay-off roller. There are two groups of actuators, and the two groups of actuators correspond to two supporting components respectively. The actuator includes a lifting rod and a lifting cylinder. The lifting rod is vertically arranged along the height direction of the frame. The supporting component is slidably connected to the lifting rod. The lifting cylinder is arranged at the top of the frame, and the output end of the lifting cylinder is connected to the supporting component.

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