A slip ringless cable reeling device and method

Abstract

The application provides a slip-ring-free cable winding and unwinding device and method. The device comprises a winding drum base, a fixed-axle gear train, a winding drum group, a universal wire guide frame and a power assembly. The application replaces the existing slip-ring winding drum scheme with the fixed-axle gear train winding drum scheme, replaces the sliding contact conductive device, avoids the cable distortion caused by the winding and unwinding of the cable, directly supplies power to the electric appliance with one soft cable, improves the conductive performance, reduces the energy loss during the power transmission, and makes the structure more simple and convenient for manufacturing and maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power and cable, in particular to a slip-ring-free cable winding and unwinding device, and a slip-ring-free cable winding and unwinding method corresponding to the device. BACKGROUND

[0002] The soft cable drum-type power supply device is an ideal power supply method for large operating mechanism, one end of the soft cable wound on the cable drum is connected with the ground power supply, when the power consumer to be charged approaches, the power cable is pulled out from the drum, and the cable is wound on the drum by the winding device after the charging is completed.

[0003] Obviously, the soft cable wound on the drum rotates with the drum, so the soft cable cannot be directly connected with the power distribution cabinet. The general method to solve this problem is to install a carbon brush slip ring current collector on the cable drum to eliminate the influence of the drum rotation and realize the connection of the soft cable. The advantage of this conductive method is that the structure is relatively compact, but the slip ring conductive mechanism itself has a complex structure, which is difficult to manufacture, install and maintain, has poor safety and reliability, and the conductive performance is also limited. More importantly, this conductive method has not completely abandoned the sliding contact conductive method, and the direct power supply of the soft cable has not been finally realized. SUMMARY

[0004] The purpose of the present application is to provide a slip-ring-free cable winding and unwinding device and a use method thereof, which is used for automatic winding and unwinding of the cable for power supply of various large operating mechanisms, realizes the direct power supply of the soft cable, is convenient for manufacturing, installation and maintenance, and greatly improves the conductive performance.

[0005] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0006] A slip-ring-free cable winding and unwinding device, comprising a drum base, a drum group, a fixed shaft gear train, a universal wire guide frame and a power assembly, wherein

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

[0008] The drum group comprises a winding and unwinding drum, a transition drum and a fixed drum arranged coaxially in sequence, the winding and unwinding drum is used for winding the cable and is rotatably arranged on the main shaft, the transition drum is fixedly connected with the winding and unwinding drum, and the fixed drum is arranged on the drum base;

[0009] The fixed shaft gear train comprises a center gear, an inner ring gear, an idler support, at least two idlers, the center gear is rotatably mounted on the main shaft, the idler support is fixed on the main shaft, the idler support extends outwardly with an idler support side plate, the idlers are fixed at the ends of the idler support side plate, the idlers are symmetrically distributed between the center gear and the inner ring gear with the main shaft as the center and are respectively engaged with the center gear and the inner ring gear, the inner ring gear is coaxially fixed with the transition reel, and the center gear and the inner ring gear rotate in opposite directions.

[0010] The universal wire guide frame comprises a wire wheel set support, a wire wheel set, a universal support, and a wire support, the wire wheel set support is provided with a wire wheel set for passing through the cable, the wire wheel set support is rotatably mounted on the universal support, the universal support is mounted on the wire support, the wire support is fixed on the center gear and rotates with the center gear, and the universal wire guide frame is located between the transition reel and the fixed reel in the direction of the power main shaft axis.

[0011] The power assembly comprises a power wheel shaft, a power wheel, and a driven wheel, the power wheel is fixed on the power wheel shaft, the power wheel is engaged with the driven wheel, and the driven wheel is coaxially fixed with the winding and unwinding reel.

[0012] Preferably, the reel base further comprises 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 fixed at the left wall plate and the right wall plate and does not rotate, the center gear is mounted on the main shaft through a bearing, the power wheel shaft is mounted on the right wall plate, and the fixed reel is fixedly mounted on the left wall plate.

[0013] Preferably, the left wall plate and the right wall plate are each provided with a reinforcing rib plate on the outside.

[0014] Preferably, the number of idlers is two, and the number of teeth of the inner ring gear of the fixed shaft gear train is equal to the sum of the number of teeth of the center gear and the number of teeth of the two idlers.

[0015] A slip ring-free cable winding and unwinding method, which adopts the slip ring-free cable winding and unwinding device described above to wind and unwind the cable, comprises the following steps:

[0016] Step one: position the parts of the device, the power wheel shaft is connected with the power source;

[0017] Step two: the cable is inserted into the appropriate length from the reserved hole of the winding drum and fixed, and the inserted cable does not interfere with the outside cable; the inserted cable passes through the inside of the winding drum and is inserted out of the reserved hole of the transition winding drum, is wound several turns outside the transition winding drum, is inserted out of the universal wire guide frame to be wound on the fixed winding drum in the opposite winding direction of the transition winding drum, and finally the cable is inserted out of the non-slip ring cable winding device from the hole below the left wallboard, the cable inserted out is the near-ground end of the cable and reaches the fixed power supply, at this time the near-ground end cable inserted out of the non-slip ring cable winding device is fixed in length and does not interfere with the internal cable, and the far-ground end of the cable extends from the winding drum to the mobile electrical equipment.

[0018] Step three: when the mobile electrical equipment needs to be charged, the motor drives the power shaft to rotate the driven wheel to control the winding drum to rotate in one direction, the winding drum starts to wind the cable, the transition winding drum and the inner ring gear rotate in the same direction, at the same time, the center gear and the universal wire guide frame rotate in the opposite direction of the transition winding drum under the drive of the inner ring gear and the idler, so that the transition winding drum and the fixed winding drum respectively perform the processes of winding and unwinding, or respectively perform the processes of unwinding and winding, thereby realizing the transfer of the cable between the transition winding drum and the fixed winding drum in the non-slip ring cable winding device without affecting the normal work of the far-ground end and the near-ground end of the cable outside the device.

[0019] Step four: when the winding drum reaches the winding length, it stops rotating.

[0020] Step five: when the charging is completed, the motor drives the power shaft to rotate the driven wheel to control the winding drum to rotate in the other direction, the winding drum starts to wind the cable, the transition winding drum and the inner ring gear rotate in the same direction, at the same time, the center gear and the universal wire guide frame rotate in the opposite direction of the transition winding drum under the drive of the inner ring gear and the idler, so that the transition winding drum and the fixed winding drum respectively perform the processes of winding and unwinding, or respectively perform the processes of unwinding and winding, thereby realizing the transfer of the cable between the transition winding drum and the fixed winding drum in the non-slip ring cable winding device in the opposite direction of step three without affecting the normal work of the far-ground end and the near-ground end of the cable outside the device.

[0021] Step six: when the cable is completely retracted, the power shafts stop rotating, and a cycle of operation is completed.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The slip ring conductive mechanism in the prior art has a relatively complex structure, is difficult to manufacture, install and maintain, has poor safety and reliability, and has limited conductive performance, and more importantly, this conductive method has not completely abandoned the sliding contact conductive method and has not finally realized the direct power supply of the flexible cable.

[0024] The application provides a slip ring-free cable winding and unwinding device and method, compared with the existing slip ring winding drum, the application solves the disadvantages of the slip ring winding drum, is more simple in design compared with the slip ring winding drum, is convenient for manufacturing, installation and maintenance, and greatly improves the conductive performance due to the direct power supply from the cable without the carbon brush slip ring conductive mode. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Fig. 1 is a perspective structural schematic view of a slip ring-free cable winding and unwinding device according to the application;

[0026] Figure 2 Fig. 2 is a front structural schematic view of the slip ring-free cable winding and unwinding device according to the application;

[0027] Figure 3 Fig. 3 is a structural schematic view of a winding drum base in the slip ring-free cable winding and unwinding device according to the application; Figure 1

[0028] Fig. 4 is a structural schematic view of a winding drum group in the slip ring-free cable winding and unwinding device according to the application; Figure 4 Figure 1 Fig. 5 is a structural schematic view of a fixed shaft wheel train and a universal wire guide frame in the slip ring-free cable winding and unwinding device according to the application;

[0029] Figure 5 Fig. 6 is a structural schematic view of an idler support in the slip ring-free cable winding and unwinding device according to the application; Figure 1

[0030] Fig. 7 is a structural schematic view of a universal wire guide frame in the slip ring-free cable winding and unwinding device according to the application; Figure 6 Figure 5 Fig. 8 is a structural schematic view of a power assembly in the slip ring-free cable winding and unwinding device according to the application;

[0031] Figure 7 Figure 1 Fig. 9 is a structural schematic view of a power assembly in the slip ring-free cable winding and unwinding device according to the application;

[0032] Figure 8 Fig. 10 is a structural schematic view of a power assembly in the slip ring-free cable winding and unwinding device according to the application; Figure 1 The following describes the technical solutions in the examples of the application in detail with reference to the accompanying drawings in the examples of the application.

[0033] 10—winding drum base; 11—base; 12—rib plate; 13—left wall plate; 14—main shaft; 15—right wall plate; 20—winding drum group; 21—winding and unwinding drum; 22—transition drum; 23—fixed drum; 30—fixed shaft wheel train; 31—inner gear ring; 32—central gear; 33—idler; 34—idler support; 35—idler support side plate; 36—idler support plate; 37—idler shaft; 40—universal wire guide frame; 41—wire support; 42—universal support; 43—wire wheel group; 44—wire wheel group support; 50—power assembly; 51—driven wheel; 52—power wheel; 53—power wheel shaft.

[0034] DETAILED DESCRIPTION

[0035] The following describes the technical solutions in the examples of the application in detail with reference to the accompanying drawings in the examples of the application.​​​​

[0036] Embodiment one

[0037] As Figures 1 to 8 , the embodiment provides a slip ring-free cable winding and unwinding device, comprising a winding drum base 10, a winding drum set 20, a fixed-axle gear train 30, a universal wire guide 40, and a power assembly 50.

[0038] The winding drum base 10 comprises a main shaft 14, 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 to the base 11, and the main shaft 14 is fixed at both ends to the left wall plate 13 and the right wall plate 15 and does not rotate. Preferably, the left wall plate 13 and the right wall plate 15 are each provided with a reinforcing rib plate 12 on the outside.

[0039] The winding drum set 20 comprises a winding and unwinding drum 21, a transition drum 22, and a fixed drum 23 arranged coaxially in sequence. The winding and unwinding drum 21 is used to wind a cable and is rotatably arranged on the main shaft 14. The transition drum 22 is fixedly connected to the winding and unwinding drum 21. The fixed drum 23 is fixedly arranged on the left wall plate 13 of the winding drum base 10.

[0040] The fixed-axle gear train 30 comprises a center gear 32, an inner ring gear 31, an idler support 34, and at least two idlers 33. The center gear 32 is rotatably mounted on the main shaft 14, for example, through a bearing. The idler support 34 is fixed to the main shaft, and the idler support 34 extends outwardly to form an idler support side plate 35. An idler support plate 36 is arranged on the idler support side plate 35. The idler support plate 36 is provided with an expansion sleeve. An idler shaft 37 of the idler 33 passes through the idler support side plate 35 and the idler support plate 36. The idler support plate 36 is arranged to enhance the supporting capacity of the idler support side plate 35 for the idler 33. The idlers 33 are symmetrically distributed between the center gear 32 and the inner ring gear 31 with the main shaft as the center and are respectively meshed with the center gear 32 and the inner ring gear 31. The transmission ratio of the idlers 33 is set to be negative, so that the inner ring gear 31 and the center gear 32 rotate in opposite directions. The inner ring gear 31 is coaxially fixedly connected to the transition drum 22.

[0041] Further, the number of idlers 33 can be two. The number of teeth of the inner ring gear 31 of the fixed-axle gear train 30 is equal to the sum of the number of teeth of the center gear 32 and the number of teeth of the two idlers 33.

[0042] The universal wire guide frame 40 comprises a wire wheel set support 44, a wire wheel set 43, a universal support 42, and a wire support 41. The wire wheel set support 44 is provided with the wire wheel set 43 for passing through the cable. The wire wheel set support 44 is rotatably installed on the universal support 42. The universal support 42 is installed on the wire support 41. The wire support 41 is fixedly connected to the central gear 32 and rotates with the central gear 32. The universal wire guide frame 40 is located between the transition winding drum and the fixed winding drum in the axial direction of the main shaft 14.

[0043] The power assembly 50 comprises a power wheel shaft 53, a power wheel 52, and a driven wheel 51. The power wheel 52 is fixedly connected to the power wheel shaft 53. The power wheel shaft 53 is installed on the right wall plate. The power wheel 52 is engaged with the driven wheel 51. The driven wheel 51 is coaxially fixedly connected to the winding drum 21. The power wheel shaft 53 is driven by an external driving motor to rotate the power wheel 52.

[0044] A slip ring-free cable winding and unwinding method is provided. The slip ring-free cable winding and unwinding device is used to wind and unwind the cable. The method comprises the following steps.

[0045] Step one: position the components of the device. The power wheel shaft 53 is connected to the power source.

[0046] Step two: the cable is passed through the appropriate length from the pre-drilled hole of the winding drum 21 and fixed. The passed cable does not interfere with the external cable. The passed cable passes through the inside of the winding drum 21 and the pre-drilled hole of the transition winding drum 22. The cable is wound several turns outside the transition winding drum 22. The cable is then passed through the wire wheel set 43 of the universal wire guide frame 40 and wound on the fixed winding drum 23 in the opposite direction of the transition winding drum 22. Finally, the cable is passed out of the slip ring-free cable winding and unwinding device from the hole below the left wall plate. The passed cable is the near-ground end of the cable and is connected to the fixed power source. At this time, the length of the near-ground end of the cable passed out of the slip ring-free cable winding and unwinding device is fixed and does not interfere with the internal cable. The far-ground end of the cable extends from the winding drum 21 to the mobile electrical equipment.

[0047] Step three: when the mobile electrical equipment needs to be charged, the motor drives the driven wheel 51 to control the winding drum 21 to rotate in one direction through the control system. The winding drum 21 starts to wind the cable. The transition winding drum 22 and the inner gear ring 31 rotate in the same direction. At the same time, the central gear and the universal wire guide frame rotate in the opposite direction of the transition winding drum 22 under the drive of the inner gear ring 31 and the idler. The transition winding drum 22 and the fixed winding drum 23 perform the processes of winding and unwinding, respectively, or the processes of unwinding and winding, respectively. Thus, the cable is transferred between the transition winding drum 22 and the fixed winding drum 23 in the slip ring-free cable winding and unwinding device without affecting the normal operation of the far-ground end and the near-ground end of the cable outside the device.

[0048] Step four: stop rotating when the take-up reel 21 reaches the length of winding;

[0049] Step five: when the charging is completed, the motor drives the driven wheel to control the take-up reel 21 to rotate in the opposite direction, and the take-up reel 21 starts to wind the wire, and the transition reel 22 and the inner ring 31 rotate in the same direction, at the same time, the center gear 32 and the universal wire guide 40 rotate in the opposite direction of the transition reel 22 under the drive of the inner ring 31 and the idler 33, so that the transition reel 22 and the fixed reel 23 respectively perform the winding and unwinding process, or respectively perform the unwinding and winding process, thereby achieving the cable transfer between the transition reel 22 and the fixed reel 23 in the opposite direction of step three without affecting the normal work of the cable far end and near end outside the device.

[0050] Step six: when the cable is completely retracted, the power shaft 53 stops rotating, and a cycle of work is completed.

[0051] In the above-mentioned steps three and five, the cable extending from the take-up reel 21 to the transition reel 22 can have two opposite winding modes, when the transition reel 22 rotates in one direction and unwinds outward, the universal wire guide 40 rotating in the opposite direction drives the unwound cable to wind onto the fixed reel 23, and when the transition reel 22 rotates in the other direction and winds inward, the universal wire guide 40 rotating in the opposite direction drives the cable to separate from the fixed reel 23 and wind onto the transition reel 22.

[0052] In the above-mentioned scheme, the size of the take-up reel 21, the transition reel 22 and the fixed reel 23, and the universal wire guide 40 can be adjusted according to actual working conditions, cable conditions and other requirements, for example, according to the speed ratio of the universal wire guide 40 and the transition reel 22, the diameter ratio of the transition reel 22 and the fixed reel 23 is adjusted, so that the winding length of the transition reel 22 per unit time matches the winding length of the fixed reel 23 per unit time.

[0053] The above-mentioned is only the 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 solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A slip-ring-free cable take-up and untake-down device, characterized in that: Includes drum base, drum assembly, fixed-axis gear train, universal guide frame, and power assembly, among which The drum base is equipped with a main shaft; The reel assembly includes a take-up reel, a transition reel, and a fixed reel arranged coaxially in sequence. The take-up reel is used to wind cables and is rotatably mounted on the main shaft. The transition reel is fixedly connected to the take-up reel, and the fixed reel is placed on a reel base. The fixed-axis gear train includes a central gear, an internal gear ring, an idler gear bracket, and two idler gears. The central gear is rotatably mounted on the main shaft. The idler gear bracket is fixed to the main shaft and extends outward to form an idler gear bracket side plate. The idler gears are fixed to the ends of the idler gear bracket side plates. The idler gears are symmetrically distributed between the central gear and the internal gear ring with the main shaft as the center and mesh with both the central gear and the internal gear ring respectively. The internal gear ring is coaxially fixed to the transition drum. The central gear and the internal gear ring rotate in opposite directions. The number of teeth on the internal gear ring of the fixed-axis gear train is equal to the sum of the number of teeth on the central gear and the number of teeth on the two idler gears. The universal cable support includes a cable wheel assembly bracket, a cable wheel assembly, a universal support, and a cable support. The cable wheel assembly bracket is provided with a cable wheel assembly for passing through the cable. The cable wheel assembly bracket is rotatably mounted on the universal support. The universal support is mounted on the cable support. The cable support is fixed to the central gear and rotates together with the central gear. The universal cable support is located between the transition drum and the fixed drum in the direction of the main shaft axis. The power assembly includes a power wheel shaft, a power wheel, and a driven wheel. The power wheel is fixed on the power wheel shaft, the power wheel meshes with the driven wheel, and the driven wheel is coaxially fixed to the take-up and undo drum. The drum base also includes a left wall plate, a right wall plate, and a base. The left and right wall plates are fixed on the base. The two ends of the main shaft are placed on the left and right wall plates through rolling bearings. The central gear is installed on the main shaft through a bearing. The power wheel shaft is installed on the right wall plate. The fixed drum is fixedly installed on the left wall plate.

2. The slip-ring-free cable take-up and untake-down device according to claim 1, characterized in that: The left and right wall panels are both equipped with reinforcing ribs on their outer sides.

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