A slip ring-free dual cable take-up and pay-off device and method

Abstract

The application provides a kind of no slip ring double cable take-up and pay-off device and method.The device includes reel base, power assembly, two sets of identical take-up and pay-off system are arranged side by side in reel base, each set of take-up and pay-off system includes a set of reel group, a set of fixed shaft gear train, a set of universal wire guide frame, two sets of identical take-up and pay-off system are driven by power assembly, the application uses fixed shaft gear train reel scheme to replace existing slip ring reel scheme, replaces sliding contact conductive device, the method uses forward and reverse rotation of reel and universal wire guide frame to avoid cable twisting, realizes direct power supply to electric appliance with a soft cable, improves conductive performance, reduces energy loss when transmitting power, the scheme can simultaneously take up and pay off two wires, meets the actual needs of special scene, and makes the structure more simple and convenient to manufacture and maintain.

Description

Technical Field

[0001] This invention relates to the fields of power and cables, specifically to a slip-ring-free double cable winding and unwinding device and method, applicable to the automatic winding and unwinding of double power cables for various large operating mechanisms. Background Technology

[0002] In the field of shore power technology, flexible cable reel power supply device is a relatively ideal power supply method for large operating mechanisms. One end of the flexible cable wound on the cable reel is connected to the ground power source. When the electrical appliance that needs to be charged approaches, the power supply cable is pulled out from the reel. After charging is completed, the cable is wound back onto the reel by the winding device.

[0003] Obviously, the flexible cable wound on the drum rotates with the drum, so it cannot be directly connected to the distribution cabinet. A common solution is to install a carbon brush slip ring current collector on the cable drum to eliminate the influence of drum rotation and achieve cable splicing. This conductivity method has the advantage of a compact structure, but the slip ring conductivity mechanism itself is complex, difficult to manufacture, install, and maintain, has poor safety and reliability, and its conductivity is also somewhat limited. More importantly, this conductivity method does not completely eliminate sliding contact conductivity and does not ultimately achieve direct power supply from the flexible cable. Summary of the Invention

[0004] The purpose of this invention is to provide a device for simultaneously winding and unwinding two cable reels and its method of use, for the automatic winding and unwinding of cables supplying power to various large operating mechanisms. It is easy to manufacture, install and maintain, and its conductivity is significantly improved.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A slip-ring-free dual-cable take-up and unwind device includes a drum base and a power assembly. Two identical take-up and unwind systems are mounted side-by-side within the drum base. Each take-up and unwind system includes a drum assembly, a fixed-axis pulley system, and a universal guide frame. Both identical take-up and unwind systems are driven by the power assembly.

[0007] The drum base is equipped with a main shaft;

[0008] Each reel assembly includes a take-up reel, a transition reel, and a fixed reel arranged coaxially. Each take-up reel is used to wind cables and is rotatably placed on the main shaft. Each transition reel is fixedly connected to the corresponding take-up reel, and two fixed reels are respectively placed on both sides of the reel base.

[0009] Each set of fixed shaft gear train includes a sun gear, an inner ring gear, an idler support, at least two idlers, each sun gear is rotatably mounted on the main shaft, each idler support is fixed on the main shaft, each idler support extends outwardly with an idler support side plate, each idler is fixed on the end of the idler support side plate, the idlers in each set of fixed shaft gear train are symmetrically distributed between the sun gear and the inner ring gear with the main shaft as the center and are respectively engaged with the sun gear and the inner ring gear, each inner ring gear is coaxially fixed with the transition reel, and each sun gear is opposite in rotation direction to the inner ring gear;

[0010] Each set of universal wire guide frame includes a wire wheel set support, a wire wheel set, a universal support, and a wire support, each wire wheel set support is provided with a wire wheel set for passing through the cable, each wire wheel set support is rotatably mounted on the universal support, each universal support is mounted on the wire support, and each wire support is fixed on the sun gear and rotates with the sun gear, and each universal wire guide frame is located between the transition reel and the fixed reel in the direction of the main shaft axis;

[0011] As preferred, the reel base described above further includes a left wall plate, a right wall plate, and a base, the left wall plate and the right wall plate are fixed on the base, the main shaft is placed on the left wall plate and the right wall plate through rolling bearings at both ends, the sun gear is mounted on the main shaft through a bearing, and the two fixed reels are respectively mounted on the left wall plate and the right wall plate of the reel base.

[0012] Further, the left wall plate and the right wall plate are respectively provided with a reinforcing rib plate on the outside.

[0013] As preferred, the number of idlers in each inner ring gear is two, and the number of teeth of the inner ring gear is equal to the sum of the number of teeth of the sun gear and the number of teeth of the two idlers.

[0014] As preferred, the power assembly described above includes a driven sprocket, a power sprocket, a power sprocket shaft, and a chain, the power sprocket shaft is mounted on the power sprocket shaft support on the reel base, the power sprocket is mounted on the power sprocket shaft, the driven sprocket is coaxially fixed with the two take-up reels on both sides, the driven sprocket is connected with the power sprocket by the chain, and in the axial direction of the main shaft, the components in the two sets of cable take-up systems are distributed in the following order from left to right: fixed reel, universal wire guide frame, fixed shaft gear train, transition reel, take-up reel, take-up reel, transition reel, fixed shaft gear train, universal wire guide frame, and fixed reel.

[0015] A method for taking up and paying out a double cable without a slip ring, which uses the cable taking-up and paying-out device without a slip ring described above, includes the following steps:

[0016] Step one: place the components of the device, the power sprocket shaft is connected with the power source;

[0017] Step two: each set of winding and unwinding system is wound with one cable, each cable is wound by the following way: the cable is inserted into the reserved hole of the winding and unwinding drum with a suitable length and fixed, the inserted cable does not interfere with the outside cable; the inserted cable passes through the inside of the winding and unwinding drum, and is inserted out of the reserved hole of the transition drum, and is wound several turns outside the transition drum, and is inserted out of the universal wire guide to be wound on the fixed drum in the opposite winding direction of the transition drum, and finally the two cables are inserted out of the non-slip ring double cable winding and unwinding device from the holes below the left and right wallboards, the inserted cables are the near-ground ends of the cables and are connected to the fixed power supply, at this time the near-ground end cables inserted out of the non-slip ring double cable winding and unwinding device are fixed in length and do not interfere with the internal cables, and the far-ground ends of the two cables extend from the two winding and unwinding drums to the mobile electrical equipment.

[0018] Step three: when the mobile electrical equipment needs to be charged, the power assembly driven by the control system controls the winding and unwinding drums on both sides to rotate in one direction, the two winding and unwinding drums start to wind the cables respectively, the transition drums and the inner gear rings fixedly connected to the two winding and unwinding drums rotate in the same direction, at the same time, the center gears and the universal wire guides on both sides rotate in the opposite direction of the transition drums under the drive of the inner gear rings and idlers, so that the transition drums and the fixed drums respectively perform the processes of winding and unwinding, or respectively perform the processes of unwinding and winding, thereby realizing the transfer of the cables between the transition drums and the fixed drums inside the non-slip ring cable winding and unwinding device without affecting the normal work of the far-ground ends and the near-ground sections of the cables outside the device;

[0019] Step four: when the winding and unwinding drums reach the winding length, they stop rotating;

[0020] Step five: when the charging is completed, the power assembly controlled by the control system controls the winding and unwinding drums on both sides to rotate in one direction, the two winding and unwinding drums start to unwind respectively, the transition drums and the inner gear rings fixedly connected to the two winding and unwinding drums rotate in the same direction, at the same time, the center gears and the universal wire guides on both sides rotate in the opposite direction of the transition drums under the drive of the inner gear rings and idlers, so that the transition drums and the fixed drums respectively perform the processes of winding and unwinding, or respectively perform the processes of unwinding and winding, thereby realizing the transfer of the cables between the transition drums and the fixed drums inside the non-slip ring cable winding and unwinding device in the opposite direction of step three without affecting the normal work of the far-ground ends and the near-ground sections of the cables outside the device;

[0021] Step six: when the cables are completely retracted, the power shaft and other components stop rotating, and one cycle of operation is completed.

[0022] As preferred, the cable extending from the inside of the winding and unwinding drum to the transition drum in the above-mentioned step three and step five can have two opposite winding modes, when the transition drum under a certain winding mode rotates in one direction to unwind the cable, the universal wire guide frame rotating in the opposite direction drives the unwound cable to wind on the fixed drum, and when the transition drum under a certain winding mode rotates in the other direction to wind the cable, the universal wire guide frame rotating in the opposite direction drives the cable to be unwound from the fixed drum and wound on the transition drum.

[0023] Compared with the prior art, the application has the beneficial effects that:

[0024] The application provides a winding and unwinding device for two cables, which has a more complex structure of a slip ring conductive mechanism, is difficult to manufacture, install and maintain, has poor safety and reliability, and has limited conductive performance.

[0025] The application solves the drawbacks of the slip ring winding drum, has a more simple design, is convenient to manufacture, install and maintain, and has improved conductive performance due to the direct power supply from the cable.

[0026] The double connection structure of the application can simultaneously wind and unwind two cables, and is more suitable for the actual working environment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 1 is a structural schematic diagram of a no-slip ring double cable winding and unwinding device in the application;

[0028] Figure 2 Fig. 2 is a front view of the no-slip ring double cable winding and unwinding device in the application;

[0029] Figure 3 Fig. 3 is a structural schematic diagram of a fixed shaft gear train in the application; Figure 1

[0030] Fig. 4 is a structural schematic diagram of a transition drum group in the application; Figure 4 Figure 1 Fig. 5 is a structural schematic diagram of a universal wire guide frame in the application;

[0031] Figure 5 Fig. 6 is a structural schematic diagram of a power part in the application;

[0032] Figure 6 Fig. 7 is a structural schematic diagram of a power part in the application;

[0033] Figure 7

[0034] The reference signs in the drawings are as follows:​​

[0035] 10 - drum base; 11 - base; 12 - web plate; 13 - left wall plate; 14 - main shaft; 15 - right wall plate; 16 - power sprocket shaft support; 20 - drum set; 21 - fixed drum; 22 - transition drum; 23 - take-up drum; 30 - fixed axle gear train; 31 - inner ring gear; 32 - center gear; 33 - idler; 34 - idler support; 35 - idler support side plate; 36 - idler support plate; 37 - idler shaft; 40 - universal wire guide; 41 - wire guide support; 42 - universal support; 43 - wire guide wheel set; 44 - wire guide wheel set support; 50 - power assembly; 51 - driven sprocket; 52 - power sprocket; 53 - power sprocket shaft; 54 - chain. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings in the embodiments of the present application.

[0037] Embodiment One

[0038] As Figures 1 to 7 , the embodiment provides a slip-ring-free double-wire cable take-up and pay-off device, which comprises a drum base 10 and a power assembly, two sets of identical take-up and pay-off systems are arranged side by side in the drum base 10, each set of take-up and pay-off system comprises a drum set 20, a fixed axle gear train 30 and a universal wire guide 40, and the two sets of identical take-up and pay-off systems are driven by the power assembly 50, wherein

[0039] The drum base 10 is provided with a main shaft 14;

[0040] Each drum set 20 comprises coaxially arranged take-up and pay-off drums 23, transition drums 22 and fixed drums 21, each take-up and pay-off drum 23 is arranged for winding a wire and is rotatably arranged on the main shaft 14, each transition drum is fixedly connected with the corresponding take-up and pay-off drum 23, and the two fixed drums are arranged on the two sides of the drum base 10;

[0041] Each set of fixed axis gear train 30 includes a sun gear, an inner ring gear 31, an idler support 34, at least two idlers 33, each sun gear is rotatably mounted on the main shaft 14, each idler support 34 is fixed on the main shaft 14, each idler support 34 extends outwardly an idler support side plate 35, the idler support side plate 35 is provided with an idler support plate 36, the idler support plate 36 is provided with an expansion sleeve, the idler shaft 37 of each idler 33 passes through the idler support side plate 35 and the idler support plate 36, the purpose of the idler support plate 36 is to enhance the supporting capacity of the idler support side plate 35 to the idler 33, the idlers 33 in each set of fixed axis gear train 30 are symmetrically distributed between the sun gear 32 and the inner ring gear 31 with the main shaft 14 as the center and are respectively engaged with the sun gear 32 and the inner ring gear 31, each inner ring gear 31 is coaxially fixed with the transition reel 22, and each sun gear 32 is opposite in rotation direction to the inner ring gear 31.

[0042] Each set of universal wire guide 40 includes a wire wheel set support 44, a wire wheel set 43, a universal support 42, and a wire support 41, each wire wheel set support 44 is provided with a wire wheel set 43 for passing through the cable, the wire wheel set 43 surrounds a cable passage for the cable to pass through, each wire wheel set support 44 is rotatably mounted on the universal support 42, each universal support 42 is mounted on the wire support 41, each wire support 41 is fixed on the sun gear 32 and rotates with the sun gear 32, and each universal wire guide 40 is located between the transition reel 22 and the fixed reel 21 in the axial direction of the main shaft 14.

[0043] The reel base further includes a left wall plate 13, a right wall plate 15, and a base 11, the left wall plate 13 and the right wall plate 15 are fixed on the base 11, the main shaft 14 passes through the rolling bearing at both ends and is located on the left wall plate 13 and the right wall plate 15, the sun gear 32 is mounted on the main shaft 14 through a bearing, and the two fixed reels 21 are respectively mounted on the left wall plate 13 and the right wall plate 15 of the reel base 10. Further, the left wall plate 13 and the right wall plate 15 are respectively provided with a reinforcing rib plate 12 on the outside.

[0044] The number of inner ring gear idlers in each inner ring gear is two, and the number of teeth of the inner ring gear 31 is equal to the sum of the number of teeth of the sun gear 32 and the number of teeth of the two idlers 33.

[0045] The power assembly 50 comprises a driven sprocket 51, a power sprocket 52, a power sprocket shaft 53, a chain 54, the power sprocket shaft 53 is installed on the power sprocket shaft support 16 on the reel base 10, the power sprocket 52 is installed on the power sprocket shaft 53, the driven sprocket 51 is coaxially connected with two winding and unwinding reels 23 on both sides, the driven sprocket 51 and the power sprocket 52 are connected by the chain, and in the axial direction of the main shaft 14, the components in the two sets of winding and unwinding systems are distributed in the order from left to right as follows: the fixed reel 21, the universal wire guide 40, the fixed shaft gear train 30, the transition reel 22, the winding and unwinding reel 23, the winding and unwinding reel 23, the transition reel 22, the fixed shaft gear train 30, the universal wire guide 40, and the fixed reel 21.

[0046] A non-slip ring double-cable winding and unwinding method related to the above device uses the non-slip ring cable winding and unwinding device described above to wind and unwind the cable, comprising the following steps:

[0047] Step one: position each component of the device used, the power sprocket shaft 53 is connected to the power source;

[0048] Step two: each winding and unwinding system is wound with one cable, and each cable is wound in the following way: a suitable length of cable is inserted into the pre-drilled hole of the winding and unwinding reel 23 and fixed, and the inserted cable does not interfere with the outer cable; the inserted cable passes through the inside of the winding and unwinding reel 23 and is pulled out of the pre-drilled hole of the transition reel 22, winds several turns around the outside of the transition reel 22, and is then pulled out of the universal wire guide 40 to be wound on the fixed reel 21 in the opposite direction of the transition reel 22, finally, the two cables are pulled out of the non-slip ring double-cable winding and unwinding device from the holes below the left wall plate 13 and the right wall plate 15, the pulled-out cables are the near-ground ends of the cables and are connected to the fixed power source, at this time, the length of the near-ground end of the cable pulled out of the non-slip ring double-cable winding and unwinding device is fixed and does not interfere with the internal cable, and the far-ground ends of the two cables extend from the two winding and unwinding reels to the mobile electrical equipment.

[0049] Step three: when the mobile electrical equipment needs to be charged, the power assembly driven by the motor controls the winding and unwinding reels 23 on both sides to rotate in one direction, the two winding and unwinding reels 23 start to wind the cable respectively, the transition reels 22 and the inner ring gears fixedly connected to the two winding and unwinding reels 23 rotate in the same direction, at the same time, the center gears 32 and the universal wire guides 40 on both sides rotate in the opposite direction of the transition reel 22 under the drive of the inner ring gears 31 and the idler gears 33, so that the transition reel 22 and the fixed reel 21 respectively perform the processes of winding and unwinding, or respectively perform the processes of unwinding and winding, thereby achieving the transfer of the cable between the transition reel 22 and the fixed reel 21 inside the non-slip ring cable winding and unwinding device without affecting the normal operation of the cable far-ground end and the near-ground section outside the device;

[0050] Step four: stop the rotation of the winding and unwinding reels 23 when they reach the winding length;

[0051] Step five: when the charging is completed, the power assembly controls the two sides of the winding and unwinding drum 23 to rotate in one direction through the control of the control system, and the two winding and unwinding drums 23 start to pay out the wire, and the transition drum 22 and the inner gear ring 31 fixedly connected with the two winding and unwinding drums 23 rotate in the same direction, at the same time, the two sides of the center gear 32 and the universal wire guide frame 40 rotate in the opposite direction of the transition drum 22 under the drive of the inner gear ring 31 and the idler gear 33, so that the transition drum 22 and the fixed drum 21 perform the processes of winding and paying out the wire respectively or the processes of paying out the wire and winding the wire respectively, thereby realizing the wire transfer between the transition drum 22 and the fixed drum 21 in the opposite direction of step three without affecting the normal work of the wire far end and the wire near end outside the device.

[0052] Step six: when the wire is completely retracted, the power shaft and other components stop rotating, and a cycle of operation is completed.

[0053] It should be noted that in steps three and five, the wire extending from the winding and unwinding drum to the transition drum 22 can have two opposite winding modes, when the transition drum 22 rotates in one direction to pay out the wire outward, the universal wire guide frame 40 rotating in the opposite direction drives the wire to be wound to the fixed drum 21, and when the transition drum 22 rotates in the other direction to wind the wire inward, the universal wire guide frame 40 rotating in the opposite direction drives the wire to be separated from the fixed drum 21 and wound to the transition drum 22.

[0054] The motor drive mode in steps three and five can adopt various optional schemes in the prior art, for example, a chain transmission can be adopted, and the power sprocket shaft 53 and the power sprocket 52 drive the driven sprocket 51 to control the two sides of the winding and unwinding drum 21 to rotate in one direction through the chain 54.

[0055] The size of the winding and unwinding drum 23, the transition drum 22, the fixed drum 21 and the universal wire guide frame 40 in the above scheme can be adjusted according to actual working conditions, wire conditions and other requirements, for example, the diameter ratio of the transition drum 22 and the fixed drum 21 is adjusted according to the speed ratio of the universal wire guide frame 40 and the transition drum 22, so that the wire pay-out length per unit time of the transition drum 22 matches the wire winding length per unit time of the fixed drum 23.

[0056] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A slip-ring-free dual-cable take-up and unload device, characterized in that: The system includes a drum base and a power unit. Two identical take-up and unwinding systems are installed side-by-side within the drum base. Each take-up and unwinding system includes a drum assembly, a fixed-axis pulley system, and a universal guide frame. Both identical take-up and unwinding systems are driven by the same power unit. The drum base is equipped with a main shaft; Each reel assembly includes a take-up reel, a transition reel, and a fixed reel arranged coaxially. Each take-up reel is used to wind cables and is rotatably placed on the main shaft. Each transition reel is fixedly connected to the corresponding take-up reel, and two fixed reels are respectively placed on both sides of the reel base. Each fixed-axis gear train includes a central gear, an internal gear ring, an idler gear bracket, and at least two idler gears. Each central gear is rotatably mounted on the main shaft. Each idler gear bracket is fixed on the main shaft. Each idler gear bracket extends outward from an idler gear bracket side plate. Each idler gear is fixed to the end of the idler gear bracket side plate. The idler gears in each fixed-axis gear train are symmetrically distributed between the central gear and the internal gear ring with the main shaft as the center and mesh with the central gear and the internal gear ring respectively. Each internal gear ring is coaxially fixed to the transition drum. Each central gear rotates in the opposite direction to the internal gear ring. Each universal cable guide frame includes a cable pulley bracket, a cable pulley set, a universal bracket, and a cable support. Each cable pulley bracket is equipped with a cable pulley set for passing through the cable. Each cable pulley bracket is rotatably mounted on the universal bracket. Each universal bracket is mounted on the cable support. Each cable support is fixed to the central gear and rotates together with the central gear. Each universal cable guide frame is located between the transition drum and the fixed drum in the direction of the main shaft axis.

2. The slip-ring-free dual-cable take-up and undo device according to claim 1, characterized in that: The drum base also includes a left wall plate, a right wall plate, and a base. The left wall plate and the right wall plate are fixed on the base. The two ends of the main shaft are placed on the left wall plate and the right wall plate through rolling bearings. The central gear is installed on the main shaft through a bearing. The two fixed drums are respectively installed on the left wall plate and the right wall plate of the drum base.

3. The slip-ring-free dual-cable take-up and undo device according to claim 2, characterized in that: The left and right wall panels are both equipped with reinforcing ribs on their outer sides.

4. The slip-ring-free dual-cable take-up and undo device according to claim 1, characterized in that: Each internal gear ring has two idler gears, and the number of teeth on the internal gear ring is equal to the sum of the number of teeth on the central gear and the number of teeth on the two idler gears.

5. The slip-ring-free dual cable take-up and unwinding device according to claim 1, characterized in that: The power assembly includes a driven sprocket, a drive sprocket, a drive sprocket shaft, and a chain. The drive sprocket shaft is mounted on a drive sprocket shaft bracket on the drum base. The drive sprocket is mounted on the drive sprocket shaft. Two take-up and untake-up drums are coaxially fixed to both sides of the driven sprocket. The driven sprocket and the drive sprocket are connected by a chain. Along the main shaft axis, the components of the two take-up and untake-up systems are distributed in the following order from left to right: fixed drum, universal guide frame, fixed shaft gear train, transition drum, take-up and untake-up drum, take-up and untake-up drum, transition drum, fixed shaft gear train, universal guide frame, and fixed drum.

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