Cable take-up and pay-off device, operation method thereof, tensioning mechanism and movable platform

Abstract

A cable take-up and pay-off device (100) comprises a cable wheel (10) and a tensioning mechanism (20). The cable wheel (10) is used for winding a cable and can wind or release the cable during rotation; the tensioning mechanism (20) comprises a tensioning wheel (21) and a driving assembly (22), the tensioning wheel (21) is used for guiding the cable during rotation and making the cable in a tensioned state, the driving assembly (22) is configured to be used for driving the tensioning wheel (21) to rotate, and the driving assembly (22) and the tensioning wheel (21) can rotate synchronously or relatively; the tensioning mechanism (20) has a first working state and a second working state in the cable releasing process of the cable winding and unwinding device (100), when the tensioning mechanism (20) is in the first working state, the driving assembly (22) drives the tensioning wheel (21) to rotate synchronously, and when the tensioning mechanism (20) is in the second working state, the tensioning wheel (21) rotates reversely relative to the driving assembly (22). In the paying-off process, the situation that the cable between the cable wheel and the tensioning wheel is too tensioned, so that smooth paying-off of the cable is affected, and even cable breakage is caused can be prevented. The invention further relates to an operation method of the cable take-up and pay-off device, a tensioning mechanism and a movable platform.

Description

Cable winding and unwinding device, its operation method, tensioning mechanism and movable platform

[0001] This application relates to the technical field of logistics equipment, and particularly to a cable winding and unwinding device, its operation method, a tensioning mechanism and a movable platform.

[0002] In the related art, after the movable platform transports the goods to the destination, the goods can be dropped by a cable winding and unwinding device (such as a winch).

[0003] However, there are some problems with the method of dropping by the cable winding and unwinding device. When the goods to be dropped are too heavy, there is a phenomenon of wire strangulation on the wire wheel of the cable winding and unwinding device, resulting in the inability of the cable winding and unwinding device to smoothly pay out the cable, affecting the loading and release of the goods.

[0004]

[0005] In view of this, this application proposes a cable winding and unwinding device, its operation method, a tensioning mechanism and a movable platform.

[0006] The cable winding and unwinding device proposed in the first aspect of this application includes:

[0007] A rotatable wire wheel for winding the cable and capable of winding or releasing the cable when rotating; and

[0008] A tensioning mechanism including a driving component and a rotatable tensioning wheel,

[0009] The tensioning wheel is used to guide the cable when rotating and keep the cable in a tensioned state;

[0010] The driving component is configured to drive the tensioning wheel to rotate, and the driving component and the tensioning wheel can rotate synchronously or relatively;

[0011] Wherein, the tensioning mechanism has a first working state and a second working state different from the first working state during the process of the cable winding and unwinding device releasing the cable;

[0012] When the tensioning mechanism is in the first working state, the driving component drives the tensioning wheel to rotate synchronously;

[0013] When the tensioning mechanism is in the second working state, the tensioning wheel can rotate in the opposite direction relative to the driving component.

[0014] The cable winding and unwinding device proposed in the second aspect of this application includes:

[0015] A rotatable wire wheel for winding the cable and capable of winding or releasing the cable when rotating; and

[0016] Tensioning mechanism, the tensioning mechanism includes a driving component and a rotatable tensioning wheel

[0017] The tensioning wheel is used to guide the cable during rotation and keep the cable in a tensioned state;

[0018] The driving component is configured to drive the tensioning wheel to rotate;

[0019] Wherein, the driving component includes a transmission member, and the transmission member is used for transmission cooperation with the wire wheel, so that when the wire wheel rotates, the driving component can be driven to rotate through the transmission member, and then the tensioning wheel is driven to rotate.

[0020] The operation method of the cable winding and unwinding device proposed in the third aspect of the present application includes:

[0021] The wire wheel rotates to release the cable;

[0022] The driving component drives the tensioning wheel to rotate to guide the cable and keep the cable in a tensioned state. Wherein, the driving component and the tensioning wheel rotate synchronously, and the tension of the cable on the tensioning wheel in the direction towards the wire wheel increases;

[0023] In response to the increase of the tension to the critical value, the cable drives the tensioning wheel to rotate in the opposite direction relative to the driving component, so that the tension decreases.

[0024] The tensioning mechanism proposed in the fourth aspect of the present application is applied to a cable winding and unwinding device, and the cable winding and unwinding device can wind or release the cable. The tensioning mechanism includes:

[0025] A rotatable tensioning wheel;

[0026] A driving component, the driving component is configured to drive the tensioning wheel to rotate, and the driving component and the tensioning wheel can rotate synchronously or relatively;

[0027] Wherein, the tensioning mechanism has a first working state and a second working state different from the first working state during the process of the cable winding and unwinding device releasing the cable;

[0028] When the tensioning mechanism is in the first working state, the driving component drives the tensioning wheel to rotate synchronously;

[0029] When the tensioning mechanism is in the second working state, the tensioning wheel rotates in the opposite direction relative to the driving component.

[0030] The movable platform proposed in the fifth aspect of the present application includes:

[0031] A movable main body;

[0032] The above-mentioned cable winding and unwinding device;

[0033] The cable winding and unwinding device is carried on the movable body.

[0034] As can be seen from the above technical solutions, for the cable winding and unwinding device proposed in the first aspect of this application, first, by setting a tensioning mechanism to tension the cable during the unwinding process of the wire reel, under the tension of the tensioning mechanism, it can well avoid the problem that the cable winding and unwinding device cannot unwind smoothly due to the phenomenon of wire strangulation on the wire reel. Secondly, by setting the tensioning wheel to be rotatable relative to the driving component, when there is a large difference between the unwinding speed of the wire reel and the unwinding speed of the tensioning wheel, and the cable between the wire reel and the tensioning wheel is too tight, resulting in a large pulling force (exceeding the critical value) on the tensioning wheel in the direction of the wire reel by the cable, the tensioning wheel can rotate reversely relative to the driving component, making the cable between the wire reel and the tensioning wheel loose, thereby preventing the cable between the wire reel and the tensioning wheel from being too tight and affecting the smooth lowering of the cable, or even causing the cable to break.

[0035] To more clearly illustrate the technical solutions of the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] FIG. 1 is a schematic structural diagram of a cable winding and unwinding device from a first perspective according to an embodiment of this application;

[0037] FIG. 2 is a schematic structural diagram of a cable winding and unwinding device from a second perspective according to an embodiment of this application;

[0038] FIG. 3 is a schematic structural diagram of a cable winding and unwinding device from a third perspective according to an embodiment of this application;

[0039] FIG. 4 is a schematic diagram of the cooperation between a wire reel and a tensioning mechanism according to an embodiment of this application;

[0040] FIG. 5 is an exploded schematic diagram of a tensioning mechanism according to an embodiment of this application;

[0041] FIG. 6 is a partial exploded schematic diagram of a tensioning mechanism according to an embodiment of this application;

[0042] FIG. 7 is a schematic structural diagram of a supporting member according to an embodiment of this application;

[0043] FIG. 8 is a schematic structural diagram of a tensioning mechanism according to another embodiment of this application;

[0044] FIG. 9 is a schematic structural diagram of a tensioning mechanism according to another embodiment of this application;

[0045] FIG. 10 is a schematic structural diagram of a fusing component according to an embodiment of the present application;

[0046] FIG. 11 is a schematic cross-sectional view of a hooking mechanism and a restricting member according to an embodiment of the present application;

[0047] FIG. 12 is a schematic flowchart of an operation method of a cable winding and unwinding device according to an embodiment of the present application.

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0049] As shown in FIGS. 1 to 4, an embodiment of the present application provides a cable winding and unwinding device 100. The cable winding and unwinding device 100 includes a wire reel 10 and a tensioning mechanism 20. The wire reel 10 is rotatable and is used for winding the cable 200 and can wind or release the cable 200 when rotating. The tensioning mechanism 20 includes a tensioning wheel 21 and a driving assembly 22. The tensioning wheel 21 is rotatable and is used for guiding the cable 200 when rotating and keeping the cable 200 in a tensioned state. The driving assembly 22 is configured to drive the tensioning wheel 21 to rotate, and the driving assembly 22 and the tensioning wheel 21 can rotate synchronously or relatively.

[0050] Among them, the tensioning mechanism 20 has a first working state and a second working state different from the first working state during the process of the cable winding and unwinding device 100 releasing the cable 200. When the tensioning mechanism 20 is in the first working state, the driving assembly 22 drives the tensioning wheel 21 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the tensioning wheel 21 rotates in the opposite direction relative to the driving assembly 22.

[0051] It should be noted that, as used herein, "unwinding the cable" is an abbreviation for "releasing the cable", and "winding the cable" is an abbreviation for "winding up the cable".

[0052] The cable winding and unwinding device 100 proposed in the embodiment of the present application. First, by setting the tensioning mechanism 20 to tension the cable 200 during the unwinding process of the cable reel 10, the problem that the cable winding and unwinding device 100 cannot unwind the cable smoothly due to the phenomenon of the cable 200 being pinched on the cable reel 10 can be well avoided under the tension of the tensioning mechanism 20. Secondly, by setting the tensioning wheel 21 to be able to rotate relative to the driving assembly 22, when there is a large difference between the unwinding speed of the cable reel 10 and the unwinding speed of the tensioning wheel 21, and the cable 200 between the cable reel 10 and the tensioning wheel 21 is too tense, resulting in a large pulling force (exceeding the critical value) of the cable 200 on the tensioning wheel 21 in the direction of the cable reel 10, the tensioning wheel 21 can rotate in the reverse direction relative to the driving assembly 22, making the cable 200 between the cable reel 10 and the tensioning wheel 21 loose, thereby preventing the cable 200 between the cable reel 10 and the tensioning wheel 21 from being too tense and affecting the smooth lowering of the cable 200, or even causing the cable 200 to break, realizing the stable unwinding of the cable 200.

[0053] In one embodiment, when the tensioning mechanism 20 is in the first working state, the tension degree of the cable 200 increases to the first tension state, and then the tensioning mechanism 20 enters the second working state, and the cable 200 is in the second tension state. Among them, the tension degree of the cable 200 in the first tension state is greater than the tension degree of the cable 200 in the second tension state. It should be noted that during the process of the cable winding and unwinding device 100 releasing the cable, the first working state and the second working state exist alternately.

[0054] In one embodiment, when the tensioning mechanism 20 is in the first working state, the unwinding speed of the tensioning wheel 21 is greater than the unwinding speed of the cable reel 10 to make the cable 200 in a tensioned state, and as the unwinding length of the cable reel 10 increases, when the pulling force of the cable 200 on the tensioning wheel 21 in the direction of the cable reel 10 gradually increases to the critical value, the cable 200 drives the tensioning wheel 21 to rotate in the reverse direction relative to the driving assembly 22, and the tensioning mechanism 20 enters the second working state to reduce the pulling force of the cable 200.

[0055] Among them, the wire release speed of the tension pulley 21 refers to the tangential speed when the cable 200 leaves the tension pulley 21. Understandably, since the wire outlet position of the cable 200 on the tension pulley 21 can be basically considered unchanged, according to V = rw, the wire release speed of the tension pulley 21 can be considered to be basically unchanged. The wire release speed of the wire wheel 10 refers to the tangential speed when the cable 200 leaves the wire wheel 10. Understandably, as the wire release length of the wire wheel 10 increases, the cable 200 on the wire wheel 10 gradually decreases, and the wire outlet end of the cable 200 gradually approaches the rotating shaft of the wire wheel 10. According to V = rw, the wire release speed of the wire wheel 10 is gradually decreasing. Therefore, before the tension of the cable 200 on the tension pulley 21 in the direction towards the wire wheel 10 gradually increases to the critical value, as the wire release length of the wire wheel 10 increases, the difference between the wire release speed of the tension pulley 21 and the wire release speed of the wire wheel 10 becomes larger and larger.

[0056] In one embodiment, the driving assembly 22 is connected to the tension pulley 21 through a differential mechanism 23, and the critical value at least includes the sum of the driving force applied to the tension pulley 21 by the differential mechanism 23 and the gravity of the load mounted on the cable 200. Specifically, the driving assembly 22 can drive the tension pulley 21 to rotate through the differential mechanism 23, and when the tension of the cable 200 on the tension pulley 21 in the direction towards the wire wheel 10 gradually increases to the critical value, the differential mechanism 23 can enable the tension pulley 21 to rotate relative to the driving assembly 22 under the drive of the cable 200, that is, the slippage between the tension pulley 21 and the driving assembly 22 is realized, so as to achieve the effect of slowing down the speed of the tension pulley 21. It should be noted that in other embodiments, the driving assembly 22 can also be directly connected to the tension pulley 21, and the differential mechanism 23 directly acts on the tension pulley 21.

[0057] In one embodiment, when the tensioning mechanism 20 is in the first working state, as the wire release length of the wire wheel 10 increases, the difference between the wire release speed of the tension pulley 21 and the wire release speed of the wire wheel 10 increases to ΔV1. When the tensioning mechanism 20 enters the second working state, the difference between the wire release speed of the tension pulley 21 and the wire release speed of the wire wheel 10 is ΔV2, where ΔV2 is less than ΔV1. As described above, understandably, before the tension of the cable 200 on the tension pulley 21 in the direction towards the wire wheel 10 gradually increases to the critical value, the difference between the wire release speed of the tension pulley 21 and the wire release speed of the wire wheel 10 gradually increases to the maximum value at the critical value. After that, due to the tension pulley 21 rotating in the opposite direction relative to the driving assembly 22, the wire release speed of the tension pulley 21 decreases, resulting in a decrease in the difference between the wire release speed of the tension pulley 21 and the wire release speed of the wire wheel 10.

[0058] In one embodiment, ΔV2 is equal to 0. That is, the tension pulley 21 and the wire wheel 10 release wire synchronously. It should be noted that in other embodiments, ΔV2 can be any other value less than ΔV1.

[0059] In one embodiment, the cable winding and unwinding device 100 further includes a differential mechanism 23. The driving assembly 22 is connected to the tensioning wheel 21 through the differential mechanism 23, so that the driving assembly 22 and the tensioning wheel 21 can rotate synchronously or relatively.

[0060] As shown in FIGS. 5 to 6, in one embodiment, the differential mechanism 23 includes a first mating portion 231 and a second mating portion 232. The first mating portion 231 is connected to the driving assembly 22, and the second mating portion 232 is connected to the tensioning wheel 21. The driving assembly 22 drives the tensioning wheel 21 to rotate through the cooperation of the first mating portion 231 and the second mating portion 232. Among them, when the tensioning mechanism 20 is in the first working state, the first mating portion 231 and the second mating portion 232 cooperate to enable the first mating portion 231 to drive the second mating portion 232 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the second mating portion 232 can rotate reversely relative to the first mating portion 231 under the drive of the cable 200.

[0061] As shown in FIG. 6, in one embodiment, the first mating portion 231 is in contact and cooperation with the second mating portion 232, and an elastic member 233 is provided between the first mating portion 231 and the driving assembly 22. The elastic member 233 is used to provide an elastic force to push the first mating member towards the second mating portion 232 so that the first mating portion 231 can generate a driving force to drive the second mating portion 232 to rotate. The elastic member 233 can be, but is not limited to, a spring.

[0062] As shown in FIG. 6, in one embodiment, the first mating portion 231 includes an insert 2311, and the second mating portion 232 includes a groove 2321. The insert 2311 is configured to be at least partially embedded in the groove 2321. It should be noted that the groove 2321 can be directly formed on the tensioning wheel 21. Of course, the groove 2321 can also be provided to be formed on a connecting member, and the connecting member is then connected to the tensioning wheel 21. The first working state refers to the normal working state of the tensioning mechanism 20, and the second working state refers to the state when the tensioning mechanism 20 is slipping.

[0063] In a specific application, under the action of the elastic force of the elastic member 233, the embedded member 2311 is embedded in the groove 2321. When the driving assembly 22 rotates, it drives the embedded member 2311 to rotate. The part of the embedded member 2311 embedded in the groove 2321 exerts a circumferential force on the tension pulley 21, thereby driving the tension pulley 21 to rotate synchronously with the driving assembly 22. At this time, the side wall of the groove 2321 has a reaction force on the embedded member 2311. The component force of this reaction force along the axial direction causes the embedded member 2311 to have a tendency to compress the elastic member 233 and withdraw from the groove 2321. However, this component force is not sufficient to overcome the elastic force of the elastic member 233. Therefore, the embedded member 2311 remains embedded in the groove 2321, and the tension pulley 21 and the driving assembly 22 remain rotating synchronously. When the pulling force of the cable 200 on the tension pulley 21 in the direction towards the wire reel 10 gradually increases to the critical value, this component force is sufficient to overcome the elastic force of the elastic member 233. The embedded member 2311 compresses the spring and withdraws from the groove 2321, losing the function of the embedded member 2311. And under the pulling of the cable 200, the tension pulley 21 rotates in the reverse direction relative to the driving assembly 22, and the difference between the wire releasing speed of the tension pulley 21 and the wire releasing speed of the wire reel 10 decreases.

[0064] As shown in FIG. 6, in one embodiment, the side wall of the groove 2321 is an arc surface, and the embedded member 2311 is a spherical member. Of course, the embedded member 2311 is not limited to being set as a spherical member. For example, in another embodiment, the part of the embedded member 2311 embedded in the groove 2321 can be a hemisphere, or the outer surface contour of the part of the embedded member 2311 embedded in the groove 2321 is an arc surface. Of course, the side wall of the groove 2321 is not limited to being set as an arc surface. For example, in another embodiment, the side wall of the groove 2321 can be set as an inclined surface.

[0065] As shown in FIG. 6, in one embodiment, the number of the first engaging portions 231 and the number of the second engaging portions 232 are both multiple. The multiple second engaging portions 232 are arranged at intervals along the circumference of the tension pulley 21, and the first engaging portions 231 are arranged corresponding to the second engaging portions 232. Of course, the number of the first engaging portions 231 and the number of the second engaging portions 232 are not limited to being set as multiple. In another embodiment, the number of the first engaging portions 231 and the number of the second engaging portions 232 can both be set as one, which can be determined according to actual design requirements.

[0066] As shown in FIG. 6, in one embodiment, the differential mechanism 23 includes a mounting seat 234 connected to and rotating synchronously with the driving assembly 22. The first engaging portion 231 is connected to the driving assembly 22 through the mounting seat 234. The mounting seat 234 is provided with an assembly groove and an opening A communicating with the assembly groove. The embedded member 2311 and the elastic member 233 are arranged in the assembly groove, and at least part of the embedded member 2311 protrudes from the opening A to cooperate with the groove 2321.

[0067] As shown in FIG. 6, in one embodiment, a first through hole 2341 is provided in the middle of the mounting base 234. The mounting base 234 is sleeved on the rotating shaft assembly 222 through the first through hole 2341, and a plurality of inserts 2311 are arranged at intervals around the first through hole 2341.

[0068] As shown in FIG. 6, in one embodiment, the first engaging portion 231 further includes a supporting member 2312. The supporting member 2312 is disposed between the insert 2311 and the elastic member 233, and the elastic member 233 pushes the insert 2311 through the supporting member 2312. It should be noted that, in another embodiment, the first engaging portion 231 may not be provided with the supporting member 2312, and the elastic member 233 directly abuts against the insert 2311.

[0069] As shown in FIG. 7, in one embodiment, the supporting member 2312 includes a supporting portion 2313 and a rod portion 2314. The supporting portion 2313 abuts against the insert 2311, the rod portion 2314 is connected to the supporting portion 2313, and the rod portion 2314 passes through the elastic member 233. In this embodiment, the rod portion 2314 can play a role in stabilizing the elastic member 233. Of course, the supporting member 2312 is not limited to the above arrangement. For example, in another embodiment, the supporting member 2312 may be provided with only the supporting portion 2313.

[0070] As shown in FIG. 6, in one embodiment, the mounting base 234 includes a base body 2342 and a cover plate 2343. The base body 2342 is provided with an assembly groove, the cover plate 2343 is connected to the base body 2342, and the cover plate 2343 is provided with an opening A. During assembly, the elastic member 233 can be first sleeved on the rod portion 2314 of the supporting member 2312, then the elastic member 233 and the supporting member 2312 are placed into the assembly groove together, then the insert 2311 is embedded into the assembly groove, and finally the cover plate 2343 is fastened to the base body 2342.

[0071] It should be noted that the first engaging portion 231 and the second engaging portion 232 are not limited to the above-described embodiments. For example, in another embodiment, as shown in FIG. 8, the first engaging portion 231 includes a first friction member 2315, and the second engaging portion 232 includes a second friction member 2322. The second friction member 2322 abuts against the first friction member 2315. That is, in this embodiment, when the driving assembly 22 rotates, it drives the first friction member 2315 to rotate. The first friction member 2315 drives the tensioning pulley 21 to rotate through the frictional force between the first friction member 2315 and the second friction member 2322. At this time, the tensioning pulley 21 makes the second friction member 2322 have a reaction force on the first friction member 2315 under the pulling of the cable 200. However, this reaction force is less than the maximum frictional force between the first friction member 2315 and the second friction member 2322. Therefore, no slipping occurs between the first friction member 2315 and the second friction member 2322, and the tensioning pulley 21 rotates synchronously with the driving assembly 22. When the pulling force of the cable 200 on the tensioning pulley 21 in the direction of the wire reel 10 gradually increases to the critical value, the reaction force of the second friction member 2322 on the first friction member 2315 is greater than the maximum frictional force between the first friction member 2315 and the second friction member 2322. Relative slipping occurs between the first friction member 2315 and the second friction member 2322, and the tensioning pulley 21 rotates in the reverse direction relative to the driving assembly 22. The difference between the wire releasing speed of the tensioning pulley 21 and the wire releasing speed of the wire reel 10 decreases.

[0072] It should be noted that the second friction member 2322 can be directly formed on the tensioning pulley 21. Of course, the second friction member 2322 can also be separately provided from the tensioning pulley 21, and the second friction member 2322 is connected to the tensioning pulley 21 through a fastener.

[0073] It should be noted that the first engaging portion 231 and the second engaging portion 232 are not limited to the above-described embodiments. For example, in another embodiment, as shown in FIG. 9, one of the first engaging portion 231 and the second engaging portion 232 includes a first magnetic member 2316, and the other of the first engaging portion 231 and the second engaging portion 232 includes a second magnetic member 2323 or a magnetic attracting member. The first engaging portion 231 and the second engaging portion 232 are magnetically connected so that the first engaging portion 231 can generate a driving force on the second engaging portion 232. Among them, the magnetic material refers to an object made of this material having magnetism, such as a magnet. The magnetic attracting material refers to an object made of this material that can be attracted by the magnetic material, such as iron, cobalt, and nickel.

[0074] Taking the first engaging part 231 including the first magnetic member 2316 and the second engaging part 232 including the second magnetic member 2323 as an example, in this embodiment, when the driving assembly 22 rotates, it drives the first magnetic member 2316 to rotate. The first magnetic member 2316 drives the tension pulley 21 to rotate through the magnetic attraction force between the first magnetic member 2316 and the second magnetic member 2323. At this time, the tension pulley 21 makes the second magnetic member 2323 have a reaction force on the first magnetic member 2316 under the pulling of the cable 200. However, this reaction force is less than the magnetic attraction force between the first magnetic member 2316 and the second magnetic member 2323. Therefore, no slipping occurs between the first magnetic member 2316 and the second magnetic member 2323, and the tension pulley 21 rotates synchronously with the driving assembly 22. When the pulling force of the cable 200 on the tension pulley 21 in the direction towards the wire reel 10 gradually increases to the critical value, the reaction force of the second magnetic member 2323 on the first magnetic member 2316 is greater than the magnetic attraction force between the first magnetic member 2316 and the second magnetic member 2323. Relative slipping occurs between the first magnetic member 2316 and the second magnetic member 2323, and the tension pulley 21 rotates in reverse relative to the driving assembly 22. The difference between the wire releasing speed of the tension pulley 21 and the wire releasing speed of the wire reel 10 decreases.

[0075] It should be noted that at least part of the tension pulley 21 can be directly made of magnetic material or magnetically attracted material, that is, the second magnetic member 2323 is directly formed on the tension pulley 21. Of course, the second magnetic member 2323 can also be separately arranged from the tension pulley 21 and then connected to the tension pulley 21 through fasteners, which can be determined according to actual design requirements.

[0076] As shown in FIGS. 5 and 6, in one embodiment, the tension pulley 21 includes a first spoke 211 and a second spoke 212, and the second spoke 212 is connected to the first spoke 211. Among them, a plurality of first ribs 2111 extending radially are provided on the side of the first spoke 211 facing the second spoke 212. The plurality of first ribs 2111 are arranged at intervals along the circumferential direction of the first spoke 211. A plurality of second ribs 2121 extending radially are provided on the side of the second spoke 212 facing the first spoke 211. The plurality of second ribs 2121 are arranged at intervals along the circumferential direction of the second spoke 212. The first ribs 2111 and the second ribs 2121 are arranged in an alternating manner. In this embodiment, the first ribs 2111 and the second ribs 2121 can increase the grasping force on the cable 200.

[0077] It should be noted that the first spoke 211 and the second spoke 212 can be separately arranged and then connected together through fasteners. In this embodiment, the manufacturing difficulty of the tension pulley 21 can be reduced. Of course, the first spoke 211 and the second spoke 212 can also be integrally formed, which can be determined according to actual design requirements.

[0078] As shown in FIGS. 4 and 5, in one embodiment, the driving assembly 22 includes a transmission member 221 and a rotating shaft assembly 222. The transmission member 221 and the tensioning pulley 21 are both provided on the rotating shaft assembly 222. The transmission member 221 is used for driving cooperation with the wire reel 10, so that when the wire reel 10 rotates, it can drive the rotating shaft assembly 222 to rotate through the transmission member 221, and then drive the tensioning pulley 21 to rotate. In this embodiment, by setting the transmission member 221 to be in driving cooperation with the wire reel 10, the transmission member 221 and the wire reel 10 can share one motor, which can not only reduce the mechanical complexity of the device, but also reduce the cost due to the reduction of the number of motors. The tensioning mechanism 20 realizes the speed adjustment of the tensioning pulley 21 by reusing the motor of the wire reel 10 and combining the setting of its own differential mechanism 23. Of course, it is also possible to drive the transmission member 221 and the wire reel 10 separately with two motors, which can be specifically determined according to actual design requirements.

[0079] As shown in FIG. 5, in one embodiment, the tensioning pulley 21 is provided between the transmission member 221 and the differential mechanism 23, and the mounting seat 234 is provided on the side of the differential mechanism 23 facing away from the tensioning pulley 21.

[0080] As shown in FIG. 5, in one embodiment, the rotating shaft assembly 222 includes a first rotating shaft 2221 and a second rotating shaft 2222. The transmission member 221 is connected to the first rotating shaft 2221, and the mounting seat 234 is connected to the second rotating shaft 2222. The first rotating shaft 2221 and the second rotating shaft 2222 are connected and coaxially arranged. In this embodiment, it is convenient for the assembly of the tensioning mechanism 20. Of course, the rotating shaft assembly 222 can also be set as a single rotating shaft, which can be specifically determined according to actual design requirements.

[0081] As shown in FIG. 4, in one embodiment, the transmission member 221 includes a first gear 2211 and at least one second gear 2212. The second gear 2212 meshes with the first gear 2211, and the wire reel 10 is provided with a third gear 11 for meshing with the second gear 2212. Preferably, the number of the second gears 2212 is one.

[0082] As shown in FIG. 4, in one embodiment, the wire reel 10 includes a wire reel shaft 12 and two reel discs 13. The two reel discs 13 are respectively provided at both ends of the wire reel shaft 12. The cable 200 is wound around the wire reel shaft 12, and teeth are provided on the edge of one of the reel discs 13 to form the third gear 11. In this embodiment, the structure of the wire reel 10 can be fully utilized to simplify the structure of the tensioning mechanism 20. Of course, the third gear 11 can also be a separate component and be connected to the wire reel 10 through fasteners.

[0083] It should be noted that the transmission member 221 is not limited to being configured to include the first gear 2211. For example, in another embodiment, the transmission member 221 can be configured to include a first pulley, the wire wheel 10 is provided with a second pulley, and the first pulley and the second pulley are driven by a belt drive. For example, in another embodiment, the transmission member 221 can be configured to include a first sprocket, the wire wheel 10 is provided with a second sprocket, and the first sprocket and the second sprocket are driven by a chain drive.

[0084] As shown in FIG. 5, in one embodiment, a second through hole 2213 is provided in the middle of the first gear 2211, and the first gear 2211 is sleeved on the rotating shaft assembly 222 through the second through hole 2213.

[0085] In one embodiment, the tensioning wheel 21 is rotatably sleeved on the rotating shaft assembly 222, the differential mechanism 23 is provided on the rotating shaft assembly 222 and rotates synchronously with the rotating shaft assembly 222, and the differential mechanism 23 is connected to the tensioning wheel 21. When the tensioning mechanism 20 is in the first working state, the rotating shaft assembly 222 drives the differential mechanism 23 to rotate, and the differential mechanism 23 drives the tensioning wheel 21 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the cable 200 drives the tensioning wheel 21 to rotate relative to the driving assembly 22, and the rotation of the differential mechanism 23 enables the tensioning wheel 21 to rotate relative to the driving assembly 22.

[0086] As shown in FIG. 5, in one embodiment, the driving assembly 22 further includes a one-way bearing 223, the transmission member 221 is connected to the rotating shaft assembly 222 through the one-way bearing 223, and the one-way bearing 223 is used for the wire wheel 10 to drive the rotating shaft assembly 222 to rotate only when paying out the wire.

[0087] In one embodiment, the rotating shaft assembly 222 is in interference fit with the inner ring of the one-way bearing 223, and the transmission member 221 is in interference fit with the outer ring of the one-way bearing 223.

[0088] It should be noted that to achieve that the wire wheel 10 can drive the rotating shaft assembly 222 to rotate only when paying out the wire is not limited to the above one-way bearing 223 solution. For example, in another embodiment, the driving assembly 22 further includes a ratchet assembly, the transmission member 221 is connected to the rotating shaft assembly 222 through the ratchet assembly, and the ratchet assembly is used for the wire wheel 10 to drive the rotating shaft assembly 222 to rotate only when paying out the wire.

[0089] As shown in FIGS. 5 and 6, in one embodiment, the driving assembly 22 further includes a retaining ring 224, and the retaining ring 224 is sleeved on the rotating shaft assembly 222 and is located between the transmission member 221 and the tensioning wheel 21. In this embodiment, the retaining ring 224 can reduce the friction between the transmission member 221 and the tensioning wheel 21 to extend the service life of the tensioning mechanism 20. The retaining ring 224 can be, but is not limited to, a copper ring.

[0090] As shown in FIGS. 5 and 6, in one embodiment, the drive assembly 22 further includes a bearing 225. The rotating shaft assembly 222 is in interference fit with the inner ring of the bearing 225, and the tension pulley 21 is in interference fit with the outer ring of the first bearing 225. In this embodiment, the tension pulley 21 is rotatably connected to the rotating shaft assembly 222 through the bearing 225, which can reduce the friction between the tension pulley 21 and the rotating shaft assembly 222 and improve the service life of the rotating shaft assembly 222. Of course, it is also possible that the tension pulley 21 is directly rotatably sleeved on the rotating shaft assembly 222, which can be determined according to actual design requirements.

[0091] As shown in FIGS. 1 and 10, in one embodiment, the cable winding and unwinding device 100 further includes a fusing assembly 30. The fusing assembly 30 is disposed on the outgoing path of the cable reel 10, and the cable 200 passes through the fusing assembly 30. The fusing assembly 30 is used to fuse the cable 200. It should be noted that in some embodiments, the proposed cable winding and unwinding device 100 is applied to an aircraft, a hoisting vehicle or a tower crane that can carry a load. When the cable 200 of the cable winding and unwinding device 100 is entangled, the aircraft cannot take off, the hoisting vehicle cannot drive away, and the tower crane cannot perform the next operation. In this embodiment, by providing the fusing assembly 30, when the cable 200 or the load is entangled, the fusing assembly 30 can fuse the cable 200 to avoid the situation that the aircraft cannot take off, the hoisting vehicle cannot drive away, and the tower crane cannot perform the next operation caused by the entanglement of the cable 200.

[0092] As shown in FIGS. 1 and 10, in one embodiment, the cable winding and unwinding device 100 further includes a support base 40. The cable reel 10 and the tensioning mechanism 20 are installed on the support base 40. The fusing assembly 30 includes a housing 31, a heat conducting member 32 and a heating member 33. The housing 31 is connected to the support base 40. The heat conducting member 32 is disposed inside the housing 31, and the cable 200 passes through the heat conducting member 32. The heating member 33 is in heat conducting contact with the heat conducting member 32, and the heating member 33 fuses the cable 200 by transferring heat to the heat conducting member 32.

[0093] In one embodiment, the housing 31 is made of a heat insulating material. In this embodiment, it is possible to avoid the heat generated by the heating member 33 from spreading to the surrounding environment relatively quickly, that is, the heat can be concentrated, so as to fuse the cable 200 faster.

[0094] As shown in FIG. 10, in one embodiment, the fusing assembly 30 includes a heat insulating member 34. The heat insulating member 34 is disposed between the heat conducting member 32 and the housing 31. In this embodiment, by providing the heat insulating member 34, the heat transfer from the heat conducting member 32 to the housing 31 and then from the housing 31 to the support base 40 can be reduced, so as not to affect the operation of the components installed on the support base 40.

[0095] As shown in FIGS. 3 and 11, in one embodiment, the cable winding and unwinding device 100 further includes a hook mechanism 50. The hook mechanism 50 is connected to the cable 200 and is used for hoisting a load. When the wire reel 10 rotates, the hook mechanism 50 is driven to lift and lower through the cable 200.

[0096] In one embodiment, the hook mechanism 50 includes a first connecting arm 51 and a second connecting arm 52 that are rotatably connected. The free ends of the first connecting arm 51 and the second connecting arm 52 are separated or in contact to open or close the hook mechanism 50.

[0097] As shown in FIGS. 3 and 11, in one embodiment, the cable winding and unwinding device 100 further includes a limiting member 60. The limiting member 60 is configured to contact or separate from the hook mechanism 50. When the hook mechanism 50 contacts the limiting portion, the limiting portion is used to prevent the hook mechanism 50 from freely opening, so that the hook mechanism 50 is closed for hanging a load. In response to the moving member driving the hook mechanism 50 to descend to disengage from the limiting portion, the hook mechanism 50 is configured to be able to freely open to release the load.

[0098] Taking the above-mentioned cable winding and unwinding device 100 used on a logistics aircraft as an example, in an application scenario of loading a load in the air, the logistics aircraft flies over the shipping location, the wire reel 10 pays out the cable, the hook mechanism 50 descends. After the operator hoists the load onto the hook mechanism 50, the wire reel 10 winds up the cable, and the hook mechanism 50 rises until the hook mechanism 50 abuts against the limiting member 60. At this time, the hook mechanism 50 remains closed. Then the logistics aircraft flies to the destination. When the wire reel 10 pays out the cable and the hook mechanism 50 descends and leaves the limiting member 60, it can freely open to release the load. In an application scenario of loading a load on a bearing surface (such as the ground or a workbench surface, etc.), the logistics aircraft is erected on the bearing surface, the wire reel 10 is in a winding state and does not need to pay out the cable. The user directly hangs the load on the hook mechanism 50 under the logistics aircraft. After the hook hangs the load, the logistics aircraft takes off and starts to perform the task. Then the logistics aircraft flies to the destination. When the wire reel 10 pays out the cable and the hook mechanism 50 descends and leaves the limiting member 60, it can freely open to release the load; or, on the bearing surface, the user can pull out the hook mechanism 50, hang the load, and then the logistics aircraft takes off and winds up the cable 200 of the wire reel 10 to a preset height, starts to perform the task, flies to the destination, the wire reel 10 pays out the cable, and after the hook mechanism 50 descends and leaves the limiting member 60, it can freely open to release the load.

[0099] In this embodiment, by providing the limiting member 60 to limit the free opening of the hook mechanism 50, in this way, during the load delivery process, it is possible to avoid the situation where the hook mechanism 50 suddenly opens due to unexpected circumstances, resulting in the load falling from the air, thereby improving the safety performance. In addition, by providing that after the hook mechanism 50 disengages from the limiting member 60, the hook mechanism 50 can freely open (such as immediately automatically opening or triggering automatic opening under certain triggering conditions) to release the load. In this way, automatic loading of the load can be achieved, reducing human intervention and saving manpower and material resources. It should be noted that the limiting member 60 can prevent the hook mechanism 50 from freely opening, which means that under the action of the limiting member 60, the hook mechanism 50 cannot freely open, but when an external force intervenes, it can be opened to facilitate the placement of the load.

[0100] As shown in FIG. 11, in one embodiment, the limiting member 60 is provided with a receiving cavity 61 for receiving at least a part of the hook mechanism 50 and a wire hole 62 communicating with the receiving cavity 61. The cable 200 can pass through the wire hole 62 for lifting and lowering movement. In response to the cable 200 driving the hook mechanism 50 to rise and contact the limiting member 60, the hook mechanism 50 contacts the inner wall 63 of the receiving cavity 61. In response to the cable 200 driving the hook mechanism 50 to descend and disengage from the limiting member 60, the hook mechanism 50 disengages from the inner wall 63 of the receiving cavity 61. That is, in this embodiment, when the hook mechanism 50 contacts the inner wall 63 of the receiving cavity 61, at least a part of the surface of the first connecting arm 51 facing away from the second connecting arm 52 contacts the inner wall 63 of the receiving cavity 61, and at least a part of the surface of the second connecting arm 52 facing away from the first connecting arm 51 contacts the inner wall 63 of the receiving cavity 61. Under the constraint of the inner wall 63 of the receiving cavity 61, the first connecting arm 51 and the second connecting arm 52 cannot open in opposite directions, so that the hook mechanism 50 remains closed. In this embodiment, the structure for restricting the opening of the first connecting arm 51 and the second connecting arm 52 is very simple and does not affect the lifting of the hook mechanism 50, and the lifting of the hook mechanism 50 is very convenient.

[0101] In one embodiment, the cable 200 can be, but is not limited to, a high molecular polyethylene cable 200. High molecular polyethylene has the properties of wear resistance, impact resistance, corrosion resistance, self-lubrication and anti-cracking, and has a long service life.

[0102] As shown in FIGS. 1 and 2, in one embodiment, the cable winding and unwinding device 100 further includes a motor 70. The motor 70 is installed on the support base 40 and is connected to the wire wheel 10. The motor 70 is used to drive the wire wheel 10 to rotate.

[0103] As shown in FIGS. 1 and 2, in one embodiment, the cable winding and unwinding device 100 further includes a control box 80. The control box 80 is electrically connected to at least the motor 70 and the fusing component 30 to control the operation of the motor 70 and the fusing component 30.

[0104] As shown in FIGS. 1 and 2, in one embodiment, the motor 70 and the control box 80 are disposed on opposite sides of the wire reel 10. In this embodiment, the space can be reasonably utilized, and the cable winding and unwinding device 100 has a compact structure.

[0105] As shown in FIGS. 1 to 6, an embodiment of the present application further provides a cable winding and unwinding device 100. The proposed cable winding and unwinding device 100 includes a wire reel 10 and a tensioning mechanism 20. The wire reel 10 is rotatable and is used for winding the cable 200 and can wind up or release the cable 200 when rotating. The tensioning mechanism 20 includes a tensioning wheel 21 and a driving assembly 22. The tensioning wheel 21 is rotatable and is used for guiding the cable 200 when rotating and keeping the cable 200 in a tensioned state. The driving assembly 22 is configured to drive the tensioning wheel 21 to rotate. Among them, the driving assembly 22 includes a transmission member 221. The transmission member 221 is used for driving cooperation with the wire reel 10 so that when the wire reel 10 rotates, it can drive the driving assembly 22 to rotate through the transmission member 221, and then drive the tensioning wheel 21 to rotate.

[0106] For the cable winding and unwinding device 100 proposed in this embodiment, first, by providing the tensioning mechanism 20 to tension the cable 200 during the unwinding process of the wire reel 10, under the tension of the tensioning mechanism 20, the problem that the cable 200 cannot be smoothly unwound due to the phenomenon of wire strangulation on the wire reel 10 can be well avoided. Secondly, by providing the transmission member 221 for driving cooperation with the wire reel 10, the transmission member 221 and the wire reel 10 can share a motor 70, which can not only reduce the mechanical complexity of the device, but also play a role in reducing costs due to the reduction of the number of motors 70.

[0107] In one embodiment, the driving assembly 22 and the tensioning wheel 21 can rotate synchronously or relatively. The tensioning mechanism 20 has a first working state and a second working state different from the first working state during the process of the cable winding and unwinding device 100 releasing the cable 200. When the tensioning mechanism 20 is in the first working state, the driving assembly 22 drives the tensioning wheel 21 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the tensioning wheel 21 can rotate in the opposite direction relative to the driving assembly 22.

[0108] In one embodiment, when the tensioning mechanism 20 is in the first working state, the tension degree of the cable 200 increases to the first tension state, and then the tensioning mechanism 20 enters the second working state, and the cable 200 is in the second tension state;. Among them, the tension degree of the cable 200 in the first tension state is greater than the tension degree of the cable 200 in the second tension state.

[0109] In one embodiment, when the tensioning mechanism 20 is in the first working state, the wire release speed of the tensioning wheel 21 is greater than the wire release speed of the wire wheel 10 so that the cable 200 is in a tensioned state. As the wire release length of the wire wheel 10 increases, when the tension of the cable 200 on the tensioning wheel 21 in the direction towards the wire wheel 10 gradually increases to the critical value, the cable 200 drives the tensioning wheel 21 to rotate in the opposite direction relative to the drive assembly 22, and the tensioning mechanism 20 enters the second working state to reduce the tension of the cable 200.

[0110] In one embodiment, the drive assembly 22 is connected to the tensioning wheel 21 through a differential mechanism 23, and the critical value at least includes the sum of the maximum driving force applied by the differential mechanism 23 to the tensioning wheel 21 and the gravity of the load mounted on the cable 200.

[0111] In one embodiment, when the tensioning mechanism 20 is in the first working state, as the wire release length of the wire wheel 10 increases, the difference between the wire release speed of the tensioning wheel 21 and the wire release speed of the wire wheel 10 increases to ΔV1. When the tensioning mechanism 20 enters the second working state, the difference between the wire release speed of the tensioning wheel 21 and the wire release speed of the wire wheel 10 is ΔV2, where ΔV2 is less than ΔV1.

[0112] In one embodiment, ΔV2 is equal to 0.

[0113] In one embodiment, during the process of the tensioning wheel 21 rotating in the opposite direction relative to the drive assembly 22, the rotation direction of the tensioning wheel 21 is the same as that of the drive assembly 22, and the rotation speed of the tensioning wheel 21 is less than the rotation speed of the drive assembly 22.

[0114] In one embodiment, during the process of the cable winding and unwinding device 100 releasing the cable, the first working state and the second working state alternate.

[0115] As shown in FIGS. 5 to 6, in one embodiment, the cable winding and unwinding device 100 further includes a differential mechanism 23. The drive assembly 22 is connected to the tensioning wheel 21 through the differential mechanism 23 so that the drive assembly 22 and the tensioning wheel 21 can rotate synchronously or relatively.

[0116] In one embodiment, the differential mechanism 23 includes a first mating part 231 and a second mating part 232. The first mating part 231 is connected to the drive assembly 22, and the second mating part 232 is connected to the tensioning wheel 21. The drive assembly 22 drives the tensioning wheel 21 to rotate through the cooperation of the first mating part 231 and the second mating part 232. Among them, when the tensioning mechanism 20 is in the first working state, the first mating part 231 and the second mating part 232 cooperate to enable the first mating part 231 to drive the second mating part 232 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the second mating part 232 can rotate in the opposite direction relative to the first mating part 231 under the drive of the cable 200.

[0117] As shown in FIG. 6, in one embodiment, the first engaging portion 231 is in contact and engagement with the second engaging portion 232, and an elastic member 233 is provided between the first engaging portion 231 and the driving assembly 22. The elastic member 233 is configured to provide an elastic force to push the first engaging portion 231 toward the second engaging portion 232 so that the first engaging portion 231 can generate a driving force to drive the second engaging portion 232 to rotate.

[0118] As shown in FIG. 6, in one embodiment, the first engaging portion 231 includes an insert member 2311, and the second engaging portion 232 includes a groove 2321. The insert member 2311 is configured to be at least partially insertable into the groove 2321.

[0119] As shown in FIG. 6, in one embodiment, the differential mechanism 23 includes a mounting base 234 connected to and synchronously rotating with the driving assembly 22. The mounting base 234 is provided with an assembly groove and an opening A communicating with the assembly groove. The insert member 2311 and the elastic member 233 are disposed in the assembly groove, and at least a part of the insert member 2311 protrudes from the opening A to cooperate with the groove 2321.

[0120] As shown in FIG. 6, in one embodiment, the first engaging portion 231 further includes a supporting member 2312. The supporting member 2312 is disposed between the insert member 2311 and the elastic member 233, and the elastic member 233 pushes the insert member 2311 through the supporting member 2312.

[0121] As shown in FIG. 6, in one embodiment, the supporting member 2312 includes a supporting portion 2313 and a rod portion 2314. The supporting portion 2313 abuts against the insert member 2311, the rod portion 2314 is connected to the supporting portion 2313, and the rod portion 2314 passes through the elastic member 233.

[0122] As shown in FIG. 6, in one embodiment, the mounting base 234 includes a base body 2342 and a cover plate 2343. The base body 2342 is provided with an assembly groove, the cover plate 2343 is connected to the base body 2342, and the cover plate 2343 is provided with the opening A.

[0123] As shown in FIG. 8, in one embodiment, the first engaging portion 231 includes a first friction member 2315, the second engaging portion 232 includes a second friction member 2322, and the second friction member 2322 abuts against the first friction member 2315.

[0124] As shown in FIG. 9, in one embodiment, one of the first engaging portion 231 and the second engaging portion 232 includes a first magnetic member 2316, the other of the first engaging portion 231 and the second engaging portion 232 includes a second magnetic member 2323 or a magnetic attracting member, and the first engaging portion 231 and the second engaging portion 232 are magnetically connected so that the first engaging portion 231 can generate a driving force on the second engaging portion 232.

[0125] In one embodiment, a plurality of second mating portions 232 are arranged at intervals along the circumferential direction of the tensioning pulley 21, and the first mating portion 231 is arranged corresponding to the second mating portion 232.

[0126] As shown in FIGS. 5 and 6, in one embodiment, the tensioning pulley 21 includes a first spoke 211 and a second spoke 212, and the second spoke 212 is connected to the first spoke 211. Wherein, a plurality of first ribs 2111 extending radially are provided on one side of the first spoke 211 facing the second spoke 212, and the plurality of first ribs 2111 are arranged at intervals along the circumferential direction of the first spoke 211. A plurality of second ribs 2121 extending radially are provided on one side of the second spoke 212 facing the first spoke 211, and the plurality of second ribs 2121 are arranged at intervals along the circumferential direction of the second spoke 212. The first ribs 2111 and the second ribs 2121 are arranged in an interleaved manner.

[0127] As shown in FIGS. 4 and 5, in one embodiment, the drive assembly 22 includes a transmission member 221 and a rotating shaft assembly 222. The transmission member 221 and the tensioning pulley 21 are both arranged on the rotating shaft assembly 222. The transmission member 221 is used for drivingly cooperating with the wire wheel 10 so that when the wire wheel 10 rotates, it can drive the rotating shaft assembly 222 to rotate through the transmission member 221, and further drive the tensioning pulley 21 to rotate.

[0128] As shown in FIG. 4, in one embodiment, the transmission member 221 includes a first gear 2211 and at least one second gear 2212. The second gear 2212 meshes with the first gear 2211, and the wire wheel 10 is provided with a third gear 11 for meshing with the second gear 2212.

[0129] In one embodiment, the tensioning pulley 21 is rotatably sleeved on the rotating shaft assembly 222. The differential mechanism 23 is arranged on the rotating shaft assembly 222 and rotates synchronously with the rotating shaft assembly 222. The differential mechanism 23 is connected to the tensioning pulley 21. When the tensioning mechanism 20 is in the first working state, the rotating shaft assembly 222 drives the differential mechanism 23 to rotate, and the differential mechanism 23 drives the tensioning pulley 21 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the cable 200 drives the tensioning pulley 21 to rotate relative to the drive assembly 22, and the rotation of the differential mechanism 23 enables the tensioning pulley 21 to rotate relative to the drive assembly 22.

[0130] As shown in FIG. 5, in one embodiment, the drive assembly 22 further includes a one-way bearing 223. The transmission member 221 is connected to the rotating shaft assembly 222 through the one-way bearing 223. The one-way bearing 223 is used for enabling the wire wheel 10 to drive the rotating shaft assembly 222 to rotate only when paying out the wire.

[0131] In one embodiment, the rotating shaft assembly 222 is in interference fit with the inner ring of the one-way bearing 223, and the transmission member 221 is in interference fit with the outer ring of the one-way bearing 223.

[0132] As shown in FIGS. 5 and 6, in one embodiment, the drive assembly 22 further includes a snap ring 224 sleeved on the rotating shaft assembly 222 and located between the transmission member 221 and the tension pulley 21.

[0133] As shown in FIGS. 1 and 10, in one embodiment, the cable winding and unwinding device 100 further includes a fusing assembly 30 disposed on the outgoing path of the cable reel 10. The cable 200 passes through the fusing assembly 30, and the fusing assembly 30 is configured to fuse the cable 200.

[0134] As shown in FIGS. 1 and 10, in one embodiment, the cable winding and unwinding device 100 further includes a support base 40. The cable reel 10 and the tensioning mechanism 20 are mounted on the support base 40. The fusing assembly 30 includes a housing 31, a heat conducting member 32, and a heating member 33. The housing 31 is connected to the support base 40. The heat conducting member 32 is disposed inside the housing 31. The cable 200 passes through the heat conducting member 32. The heating member 33 is in thermal contact with the heat conducting member 32, and the heating member 33 fuses the cable 200 by transferring heat to the heat conducting member 32.

[0135] In one embodiment, the housing 31 is made of a heat insulating material.

[0136] As shown in FIG. 10, in one embodiment, the fusing assembly 30 includes a heat insulating member 34 disposed between the heat conducting member 32 and the housing 31.

[0137] For the structures and connection relationships of other components of the cable winding and unwinding device 100, extended implementation manners, and beneficial effects proposed in this embodiment, reference may be made to the above embodiments, which will not be elaborated herein.

[0138] As shown in FIG. 12, an embodiment of the present application also proposes an operating method S100 for the cable winding and unwinding device 100. The proposed operating method S100 includes:

[0139] S10, the cable reel 10 rotates to release the cable 200;

[0140] S20, the drive assembly 22 drives the tension pulley 21 to rotate to guide the cable 200 and keep the cable 200 in a tensioned state. Among them, the drive assembly 22 rotates synchronously with the tension pulley 21, and the tension of the cable 200 on the tension pulley 21 in the direction towards the cable reel 10 increases;

[0141] S30, in response to the tension increasing to a critical value, the cable 200 drives the tension pulley 21 to rotate in the opposite direction relative to the drive assembly 22 to reduce the tension.

[0142] In one embodiment, in the step of driving the tensioning wheel 21 to rotate by the driving component 22, the wire releasing speed of the tensioning wheel 21 is greater than the wire releasing speed of the wire wheel 10 so that the cable 200 is in a tensioned state, and as the wire releasing length of the wire wheel 10 increases, the pulling force of the cable 200 on the tensioning wheel 21 in the direction of the wire wheel 10 gradually increases to a critical value.

[0143] In one embodiment, the driving component 22 is connected to the tensioning wheel 21 through a differential mechanism 23, and the differential mechanism 23 enables the tensioning wheel 21 and the driving component 22 to have relative movement; the critical value at least includes the sum of the driving force applied by the differential mechanism 23 to the tensioning wheel 21 and the gravity of the mounted load.

[0144] In one embodiment, in the step of driving the tensioning wheel 21 to rotate by the driving component 22, as the wire releasing length of the wire wheel 10 increases, the difference between the wire releasing speed of the tensioning wheel 21 and the wire releasing speed of the wire wheel 10 increases to ΔV1; in the step of the cable 200 driving the tensioning wheel 21 to rotate reversely relative to the driving component 22, the difference between the wire releasing speed of the tensioning wheel 21 and the wire releasing speed of the wire wheel 10 is ΔV2; wherein, ΔV2 is less than ΔV1.

[0145] In one embodiment, ΔV2 is equal to 0.

[0146] For the operation method of the cable winding and unwinding device 100 proposed in this embodiment, other implementation steps, extended implementation manners and beneficial effects can refer to the above embodiments and will not be elaborated here.

[0147] As shown in FIGS. 5 and 6, an embodiment of the present application further proposes a tensioning mechanism 20, which is applied to the cable winding and unwinding device 100. The cable winding and unwinding device 100 can wind or release the cable 200. The proposed tensioning mechanism 20 includes a tensioning wheel 21 and a driving component 22. The tensioning wheel 21 is rotatable, and the driving component 22 is configured to drive the tensioning wheel 21 to rotate, and the driving component 22 and the tensioning wheel 21 can rotate synchronously or relatively. Among them, the tensioning mechanism 20 has a first working state and a second working state different from the first working state during the process of the cable winding and unwinding device 100 releasing the cable 200. When the tensioning mechanism 20 is in the first working state, the driving component 22 drives the tensioning wheel 21 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the tensioning wheel 21 rotates reversely relative to the driving component 22.

[0148] In the tensioning mechanism 20 proposed in this embodiment, by providing that the tensioning wheel 21 can rotate relative to the driving component 22. When the tensioning wheel 21 cooperates with the wire reel 10 of the wire and cable winding and unwinding device 100 to pay out the wire, if there is a large difference between the wire pay-out speed of the wire reel 10 and that of the tensioning wheel 21, and the wire 200 between the wire reel 10 and the tensioning wheel 21 is overly tensioned, resulting in a large pulling force (exceeding the critical value) exerted on the tensioning wheel 21 by the wire 200 in the direction towards the wire reel 10, the tensioning wheel 21 can rotate reversely relative to the driving component 22, making the wire 200 between the wire reel 10 and the tensioning wheel 21 become loose, thereby preventing the wire 200 between the wire reel 10 and the tensioning wheel 21 from being overly tensioned and affecting the smooth pay-out of the wire 200, or even causing the wire 200 to break, achieving stable pay-out of the wire 200.

[0149] As shown in FIGS. 5 to 6, in one embodiment, the tensioning mechanism 20 further includes a differential mechanism 23. The driving component 22 is connected to the tensioning wheel 21 through the differential mechanism 23, and the driving component 22 drives the tensioning wheel 21 through the differential mechanism 23 so that the tensioning wheel 21 and the driving component 22 rotate synchronously or reversely.

[0150] In one embodiment, the differential mechanism 23 includes a first mating portion 231 and a second mating portion 232. The first mating portion 231 is connected to the driving component 22, and the second mating portion 232 is connected to the tensioning wheel 21. The driving component 22 drives the tensioning wheel 21 to rotate through the cooperation of the first mating portion 231 and the second mating portion 232. Wherein, when the tensioning mechanism 20 is in the first working state, the first mating portion 231 and the second mating portion 232 cooperate to enable the first mating portion 231 to drive the second mating portion 232 to rotate synchronously. When the tensioning mechanism 20 is in the second working state, the second mating portion 232 can rotate reversely relative to the first mating portion 231 under the drive of the wire 200.

[0151] As shown in FIG. 6, in one embodiment, the first mating portion 231 is in contact and mating with the second mating portion 232, and an elastic member 233 is provided between the first mating portion 231 and the driving component 22. The elastic member 233 is used to provide an elastic force to push the first mating portion 231 towards the second mating portion 232 so that the first mating portion 231 can generate a driving force to drive the second mating portion 232.

[0152] As shown in FIG. 6, in one embodiment, the first mating portion 231 includes an insert 2311, and the second mating portion 232 includes a groove 2321. The insert 2311 is configured to be at least partially insertable into the groove 2321.

[0153] As shown in FIG. 6, in one embodiment, the differential mechanism 23 includes a mounting seat 234 that is connected to the driving assembly 22 and rotates synchronously. The mounting seat 234 is provided with an assembly groove and an opening A communicating with the assembly groove. The insert 2311 and the elastic member 233 are disposed in the assembly groove, and at least a part of the insert 2311 protrudes from the opening A to cooperate with the groove 2321.

[0154] As shown in FIG. 6, in one embodiment, the first engaging portion 231 further includes a supporting member 2312. The supporting member 2312 is disposed between the insert 2311 and the elastic member 233, and the elastic member 233 pushes the insert 2311 through the supporting member 2312.

[0155] As shown in FIG. 6, in one embodiment, the supporting member 2312 includes a supporting portion 2313 and a rod portion 2314. The supporting portion 2313 abuts against the insert 2311, the rod portion 2314 is connected to the supporting portion 2313, and the rod portion 2314 passes through the elastic member 233.

[0156] As shown in FIG. 6, in one embodiment, the mounting seat 234 includes a seat body 2342 and a cover plate 2343. The seat body 2342 is provided with an assembly groove, the cover plate 2343 is connected to the seat body 2342, and the cover plate 2343 is provided with the opening A.

[0157] As shown in FIG. 8, in one embodiment, the first engaging portion 231 includes a first friction member 2315, the second engaging portion 232 includes a second friction member 2322, and the second friction member 2322 abuts against the first friction member 2315.

[0158] As shown in FIG. 9, in one embodiment, one of the first engaging portion 231 and the second engaging portion 232 includes a first magnetic member 2316, the other of the first engaging portion 231 and the second engaging portion 232 includes a second magnetic member 2323 or a magnetic attracting member, and the first engaging portion 231 and the second engaging portion 232 are magnetically connected so that the first engaging portion 231 can generate a driving force on the second engaging portion 232.

[0159] As shown in FIGS. 5 and 6, in one embodiment, the tensioning wheel 21 includes a first spoke 211 and a second spoke 212. The second spoke 212 is connected to the first spoke 211. Among them, a plurality of first ribs 2111 extending radially are provided on one side of the first spoke 211 facing the second spoke 212. The plurality of first ribs 2111 are arranged at intervals along the circumferential direction of the first spoke 211. A plurality of second ribs 2121 extending radially are provided on one side of the second spoke 212 facing the first spoke 211. The plurality of second ribs 2121 are arranged at intervals along the circumferential direction of the second spoke 212, and the first ribs 2111 and the second ribs 2121 are arranged in an interleaved manner.

[0160] In one embodiment, the tensioning mechanism 20 is used to guide the cable 200 on the wire reel 10 of the cable winding and unwinding device 100 and keep the cable 200 in a tensioned state. The driving assembly 22 includes a transmission member 221 and a rotating shaft assembly 222. The transmission member 221 and the tensioning wheel 21 are both arranged on the rotating shaft assembly 222. The transmission member 221 is used for driving cooperation with the wire reel 10, so that when the wire reel 10 rotates, it can drive the rotating shaft assembly 222 to rotate through the transmission member 221, and then drive the tensioning wheel 21 to rotate.

[0161] As shown in FIG. 4, in one embodiment, the transmission member 221 includes a first gear 2211 and at least one second gear 2212. The second gear 2212 meshes with the first gear 2211, and the wire reel 10 is provided with a third gear 11 for meshing with the second gear 2212.

[0162] In one embodiment, the driving assembly 22 further includes a one-way bearing 223. The transmission member 221 is connected to the rotating shaft assembly 222 through the one-way bearing 223. The one-way bearing 223 is used for the wire reel 10 to drive the rotating shaft assembly 222 to rotate only when paying out the cable.

[0163] As shown in FIG. 5, in one embodiment, the rotating shaft assembly 222 is in interference fit with the inner ring of the one-way bearing 223, and the transmission member 221 is in interference fit with the outer ring of the one-way bearing 223.

[0164] As shown in FIGS. 5 and 6, in one embodiment, the driving assembly 22 further includes a retaining ring 224. The retaining ring 224 is sleeved on the rotating shaft assembly 222 and is located between the transmission member 221 and the tensioning wheel 21.

[0165] For the structures and connection relationships of other components of the tensioning mechanism 20 proposed in this embodiment, extended implementation manners, and beneficial effects, reference can be made to the above embodiments, which will not be elaborated here.

[0166] The embodiment of the present application also proposes a movable platform. The proposed movable platform includes a movable main body and the above-mentioned cable winding and unwinding device 100. The cable winding and unwinding device 100 is carried on the movable main body.

[0167] In one embodiment, the movable platform includes at least one of the following: a hoisting vehicle, a tower crane, and an aircraft capable of carrying loads.

[0168] As mentioned above, the above are only the specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A cable winding and unwinding device, characterized in that, comprising: a rotatable wire wheel for winding the cable and capable of winding or releasing the cable when rotating; and a tensioning mechanism including a driving component and a rotatable tensioning wheel for guiding the cable during rotation and keeping the cable in a tensioned state; the driving component is configured to drive the tensioning wheel to rotate, and the driving component and the tensioning wheel can rotate synchronously or relatively; wherein, the tensioning mechanism has a first working state and a second working state different from the first working state during the process of the cable winding and unwinding device releasing the cable; when the tensioning mechanism is in the first working state, the driving component drives the tensioning wheel to rotate synchronously; when the tensioning mechanism is in the second working state, the tensioning wheel rotates in the opposite direction relative to the driving component. The cable winding and unwinding device according to claim 1, characterized in that, when the tensioning mechanism is in the first working state, the tension degree of the cable increases to a first tension state, and then the tensioning mechanism enters the second working state, and the cable is in a second tension state; wherein, the tension degree of the cable in the first tension state is greater than the tension degree of the cable in the second tension state. The cable winding and unwinding device according to claim 1, characterized in that, when the tensioning mechanism is in the first working state, the unwinding speed of the tensioning wheel is greater than the unwinding speed of the wire wheel to keep the cable in a tensioned state, and as the unwinding length of the wire wheel increases, when the tension of the cable in the direction of the wire wheel on the tensioning wheel gradually increases to a critical value, the cable drives the tensioning wheel to rotate in the opposite direction relative to the driving component, and the tensioning mechanism enters the second working state to reduce the tension of the cable. The cable winding and unwinding device according to claim 3, characterized in that, the driving component is connected to the tensioning wheel through a differential mechanism; the critical value at least includes the sum of the maximum driving force applied to the tensioning wheel by the differential mechanism and the gravity of the load mounted on the cable. The cable winding and unwinding device according to claim 1, characterized in that, when the tensioning mechanism is in the first working state, as the unwinding length of the wire wheel increases, the difference between the unwinding speed of the tensioning wheel and the unwinding speed of the wire wheel increases to ΔV1; when the tensioning mechanism enters the second working state, the difference between the unwinding speed of the tensioning wheel and the unwinding speed of the wire wheel is ΔV2; wherein, ΔV2 is less than ΔV1. The cable winding and unwinding device according to claim 5, characterized in that, ΔV2 is equal to 0. The cable winding and unwinding device according to claim 1, characterized in that, during the process of the tensioning wheel rotating in the opposite direction relative to the driving component, the rotation direction of the tensioning wheel is the same as that of the driving component, and the rotation speed of the tensioning wheel is less than the rotation speed of the driving component. The cable winding and unwinding device according to claim 1, characterized in that, During the process of the cable winding and unwinding device releasing the cable, the first working state and the second working state exist alternately. The cable winding and unwinding device according to any one of claims 1 to 3 and 5 to 8, characterized in that, it further includes a differential mechanism, and the driving assembly is connected to the tensioning wheel through the differential mechanism so that the driving assembly and the tensioning wheel can rotate synchronously or relatively. The cable winding and unwinding device according to claim 9, characterized in that, the differential mechanism includes a first matching part and a second matching part. The first matching part is connected to the driving assembly, and the second matching part is connected to the tensioning wheel. The driving assembly drives the tensioning wheel to rotate through the cooperation of the first matching part and the second matching part; wherein, when the tensioning mechanism is in the first working state, the first matching part and the second matching part cooperate to enable the first matching part to drive the second matching part to rotate synchronously; when the tensioning mechanism is in the second working state, the second matching part can rotate reversely relative to the first matching part under the drive of the cable. The cable winding and unwinding device according to claim 10, characterized in that, the first matching part is in contact and cooperation with the second matching part, and an elastic member is provided between the first matching part and the driving assembly. The elastic member is used to provide an elastic force to push the first matching part towards the second matching part so that the first matching part can generate a driving force to drive the second matching part to rotate. The cable winding and unwinding device according to claim 11, characterized in that, the first matching part includes an insert, and the second matching part includes a groove, and the insert is configured to be at least partially insertable into the groove. The cable winding and unwinding device according to claim 12, characterized in that, the differential mechanism includes a mounting seat connected to the driving assembly and rotating synchronously. The mounting seat is provided with an assembly groove and an opening communicating with the assembly groove. The insert and the elastic member are arranged in the assembly groove, and at least part of the insert protrudes from the opening to cooperate with the groove. The cable winding and unwinding device according to claim 13, characterized in that, the first matching part further includes a supporting member, the supporting member is arranged between the insert and the elastic member, and the elastic member pushes the insert through the supporting member. The cable winding and unwinding device according to claim 14, characterized in that, the supporting member includes: a supporting part, abutting against the insert; a rod part, connected to the supporting part, and the rod part passes through the elastic member. The cable winding and unwinding device according to claim 13, characterized in that, the mounting seat includes: a seat body, provided with the assembly groove; a cover plate, connected to the seat body, and the cover plate is provided with the opening. The cable winding and unwinding device according to claim 11, characterized in that, the first matching part includes a first friction member, the second matching part includes a second friction member, and the second friction member abuts against the first friction member. The cable winding and unwinding device according to claim 10, characterized in that, One of the first mating part and the second mating part includes a first magnetic member, and the other of the first mating part and the second mating part includes a second magnetic member or a magnetic attracting member. The first mating part and the second mating part are magnetically connected so that the first mating part can generate a driving force on the second mating part. The cable retracting and deploying device according to claim 10, wherein, A plurality of the second mating parts are arranged at intervals along the circumference of the tensioning wheel, and the first mating part is arranged corresponding to the second mating part. The cable retracting and deploying device according to claim 1, wherein, The tensioning wheel includes: a first spoke; a second spoke connected to the first spoke; wherein, on a side of the first spoke facing the second spoke, a plurality of first ribs extending radially are provided, and the plurality of first ribs are arranged at intervals along the circumference of the first spoke. On a side of the second spoke facing the first spoke, a plurality of second ribs extending radially are provided, and the plurality of second ribs are arranged at intervals along the circumference of the second spoke. The first ribs and the second ribs are arranged in an alternating manner. The cable retracting and deploying device according to claim 9, wherein, The driving assembly includes a transmission member and a rotating shaft assembly. The transmission member and the tensioning wheel are both arranged on the rotating shaft assembly. The transmission member is used for driving cooperation with the wire wheel so that when the wire wheel rotates, it can drive the rotating shaft assembly to rotate through the transmission member, and further drive the tensioning wheel to rotate. The cable retracting and deploying device according to claim 21, wherein, The transmission member includes a first gear and at least one second gear. The second gear meshes with the first gear, and the wire wheel is provided with a third gear for meshing with the second gear. The cable retracting and deploying device according to claim 21, wherein, The tensioning wheel is rotatably sleeved on the rotating shaft assembly. The differential mechanism is arranged on the rotating shaft assembly and rotates synchronously with the rotating shaft assembly. The differential mechanism is connected to the tensioning wheel; when the tensioning mechanism is in the first working state, the rotating shaft assembly drives the differential mechanism to rotate, and the differential mechanism drives the tensioning wheel to rotate synchronously; when the tensioning mechanism is in the second working state, the cable drives the tensioning wheel to rotate relative to the driving assembly, and the rotation of the differential mechanism enables the tensioning wheel to rotate relative to the driving assembly. The cable retracting and deploying device according to claim 21, wherein, The driving assembly further includes a one-way bearing. The transmission member is connected to the rotating shaft assembly through the one-way bearing. The one-way bearing is used for enabling the wire wheel to drive the rotating shaft assembly to rotate only when paying out the wire. The cable retracting and deploying device according to claim 24, wherein, The rotating shaft assembly is in interference fit with the inner ring of the one-way bearing, and the transmission member is in interference fit with the outer ring of the one-way bearing. The cable retracting and deploying device according to claim 21, wherein, The driving assembly further includes: a retaining ring sleeved on the rotating shaft assembly and located between the transmission member and the tensioning wheel. The cable retracting and deploying device according to claim 1, wherein, Further comprising: A fusing component, disposed on the outgoing path of the wire reel, through which the cable passes, and the fusing component is used to fuse the cable. The cable winding and unwinding device according to claim 27, characterized in that the cable winding and unwinding device further comprises a support base, the wire reel and the tensioning mechanism are installed on the support base, and the fusing component comprises: a housing connected to the support base; a heat conducting member disposed inside the housing, the cable passes through the heat conducting member; a heating member in thermal contact with the heat conducting member, and the heating member fuses the cable by transferring heat to the heat conducting member. The cable winding and unwinding device according to claim 28, characterized in that the housing is a housing made of heat insulating material. The cable winding and unwinding device according to claim 28, characterized in that the fusing component comprises: a heat insulating member disposed between the heat conducting member and the housing. A cable winding and unwinding device, characterized in that comprising: A rotatable wire reel for winding the cable and capable of winding or releasing the cable when rotating; And a tensioning mechanism, the tensioning mechanism comprises a driving component and a rotatable tensioning wheel, the tensioning wheel is used to guide the cable when rotating and make the cable in a tensioned state; the driving component is configured to drive the tensioning wheel to rotate; wherein, the driving component comprises a transmission member, and the transmission member is used for transmission cooperation with the wire reel, so that when the wire reel rotates, it can drive the driving component to rotate through the transmission member, and then drive the tensioning wheel to rotate. The cable winding and unwinding device according to claim 31, characterized in that the driving component and the tensioning wheel can rotate synchronously or relatively; the tensioning mechanism has a first working state and a second working state different from the first working state during the process of the cable winding and unwinding device releasing the cable; when the tensioning mechanism is in the first working state, the driving component drives the tensioning wheel to rotate synchronously; when the tensioning mechanism is in the second working state, the tensioning wheel rotates in the opposite direction relative to the driving component. The cable winding and unwinding device according to claim 32, characterized in that when the tensioning mechanism is in the first working state, the tension degree of the cable increases to the first tension state, and then the tensioning mechanism enters the second working state, and the cable is in the second tension state; wherein, the tension degree of the cable in the first tension state is greater than the tension degree of the cable in the second tension state. The cable winding and unwinding device according to claim 32, characterized in that when the tensioning mechanism is in the first working state, the wire releasing speed of the tensioning wheel is greater than the wire releasing speed of the wire reel to make the cable in a tensioned state, and as the wire releasing length of the wire reel increases, when the tension of the cable on the tensioning wheel in the direction towards the wire reel gradually increases to a critical value, the cable drives the tensioning wheel to rotate in the opposite direction relative to the driving component, and the tensioning mechanism enters the second working state, so that the tension of the cable decreases. The cable winding and unwinding device according to claim 34, characterized in that The driving component is connected to the tensioning wheel through a differential mechanism; the critical value at least includes the sum of the maximum driving force applied by the differential mechanism to the tensioning wheel and the gravity of the load mounted on the cable. The cable winding and unwinding device according to claim 32, characterized in that when the tensioning mechanism is in the first working state, as the unwinding length of the wire wheel increases, the difference between the unwinding speed of the tensioning wheel and the unwinding speed of the wire wheel increases to ΔV1; when the tensioning mechanism enters the second working state, the difference between the unwinding speed of the tensioning wheel and the unwinding speed of the wire wheel is ΔV2; wherein, ΔV2 is less than ΔV1. The cable winding and unwinding device according to claim 36, characterized in that ΔV2 is equal to 0. The cable winding and unwinding device according to claim 32, characterized in that during the process of the tensioning wheel rotating in the opposite direction relative to the driving component, the rotating direction of the tensioning wheel is the same as that of the driving component, and the rotating speed of the tensioning wheel is less than the rotating speed of the driving component. The cable winding and unwinding device according to claim 32, characterized in that during the process of the cable winding and unwinding device releasing the cable, the first working state and the second working state exist alternately. The cable winding and unwinding device according to any one of claims 32 to 34 and 36 to 39, characterized in that it further includes a differential mechanism, and the driving component is connected to the tensioning wheel through the differential mechanism so that the driving component and the tensioning wheel can rotate synchronously or relatively. The cable winding and unwinding device according to claim 40, characterized in that the differential mechanism includes a first matching part and a second matching part, the first matching part is connected to the driving component, the second matching part is connected to the tensioning wheel, and the driving component drives the tensioning wheel to rotate through the cooperation of the first matching part and the second matching part; wherein, when the tensioning mechanism is in the first working state, the first matching part and the second matching part cooperate to realize that the first matching part drives the second matching part to rotate synchronously; when the tensioning mechanism is in the second working state, the second matching part can rotate in the opposite direction relative to the first matching part under the drive of the cable. The cable winding and unwinding device according to claim 41, characterized in that the first matching part is in contact and cooperation with the second matching part, and an elastic part is provided between the first matching part and the driving component, and the elastic part is used to provide an elastic force to push the first matching part towards the second matching part so that the first matching part can generate a driving force to drive the second matching part to rotate. The cable winding and unwinding device according to claim 42, characterized in that the first matching part includes an embedding part, the second matching part includes a groove, and the embedding part is configured to be at least partially embedded in the groove. The cable winding and unwinding device according to claim 43, characterized in that The differential mechanism includes a mounting seat connected to and synchronously rotating with the driving assembly. The mounting seat is provided with an assembly groove and an opening communicating with the assembly groove. The insert and the elastic member are arranged in the assembly groove, and at least a part of the insert protrudes from the opening to cooperate with the groove. The cable winding and unwinding device according to claim 44, characterized in that the first fitting portion further includes a supporting member arranged between the insert and the elastic member, and the elastic member pushes the insert through the supporting member. The cable winding and unwinding device according to claim 45, characterized in that the supporting member includes: a supporting portion abutting against the insert; a rod portion connected to the supporting portion, and the rod portion passes through the elastic member. The cable winding and unwinding device according to claim 46, characterized in that the mounting seat includes: a seat body provided with the assembly groove; a cover plate connected to the seat body, and the cover plate is provided with the opening. The cable winding and unwinding device according to claim 42, characterized in that the first fitting portion includes a first friction member, the second fitting portion includes a second friction member, and the second friction member abuts against the first friction member. The cable winding and unwinding device according to claim 41, characterized in that one of the first fitting portion and the second fitting portion includes a first magnetic member, the other of the first fitting portion and the second fitting portion includes a second magnetic member or a magnetic attracting member, and the first fitting portion and the second fitting portion are magnetically connected so that the first fitting portion can generate a driving force on the second fitting portion. The cable winding and unwinding device according to claim 41, characterized in that a plurality of the second fitting portions are arranged at intervals along the circumferential direction of the tensioning wheel, and the first fitting portion is arranged corresponding to the second fitting portion. The cable winding and unwinding device according to claim 31, characterized in that the tensioning wheel includes: a first spoke; a second spoke connected to the first spoke; wherein, on one side of the first spoke facing the second spoke, there are a plurality of first ribs extending radially, the plurality of first ribs are arranged at intervals along the circumferential direction of the first spoke, on one side of the second spoke facing the first spoke, there are a plurality of second ribs extending radially, the plurality of second ribs are arranged at intervals along the circumferential direction of the second spoke, and the first ribs and the second ribs are arranged in an alternating manner. The cable winding and unwinding device according to claim 40, characterized in that the driving assembly includes a transmission member and a rotating shaft assembly. The transmission member and the tensioning wheel are both arranged on the rotating shaft assembly. The transmission member is used for drivingly cooperating with the wire wheel so that when the wire wheel rotates, it can drive the rotating shaft assembly to rotate through the transmission member, and further drive the tensioning wheel to rotate. The cable winding and unwinding device according to claim 52, characterized in that the transmission member includes a first gear and at least one second gear. The second gear meshes with the first gear, and the wire wheel is provided with a third gear for meshing with the second gear. The cable winding and unwinding device according to claim 52, characterized in that The tension pulley is rotatably sleeved on the rotating shaft assembly. The differential mechanism is arranged on the rotating shaft assembly and rotates synchronously with the rotating shaft assembly. The differential mechanism is connected to the tension pulley. When the tensioning mechanism is in the first working state, the rotating shaft assembly drives the differential mechanism to rotate, and the differential mechanism drives the tension pulley to rotate synchronously. When the tensioning mechanism is in the second working state, the cable drives the tension pulley to rotate relative to the driving assembly, and the rotation of the differential mechanism enables the tension pulley to rotate relative to the driving assembly. The cable winding and unwinding device according to claim 52, characterized in that the driving assembly further includes a one-way bearing. The transmission member is connected to the rotating shaft assembly through the one-way bearing, and the one-way bearing is used for the wire wheel to drive the rotating shaft assembly to rotate only when paying out the cable. The cable winding and unwinding device according to claim 55, characterized in that the rotating shaft assembly is in interference fit with the inner ring of the one-way bearing, and the transmission member is in interference fit with the outer ring of the one-way bearing. The cable winding and unwinding device according to claim 52, characterized in that the driving assembly further includes a retaining ring sleeved on the rotating shaft assembly and located between the transmission member and the tension pulley. The cable winding and unwinding device according to claim 31, characterized in that it further includes: a fusing assembly arranged on the outgoing path of the wire wheel, the cable passing through the fusing assembly, and the fusing assembly being used for fusing the cable. The cable winding and unwinding device according to claim 58, characterized in that the cable winding and unwinding device further includes a support base. The wire wheel and the tensioning mechanism are installed on the support base. The fusing assembly includes a housing connected to the support base, a heat conducting member arranged inside the housing, the cable passing through the heat conducting member, and a heating member in heat conducting contact with the heat conducting member. The heating member fuses the cable by transferring heat to the heat conducting member. The cable winding and unwinding device according to claim 59, characterized in that the housing is made of a heat insulating material. The cable winding and unwinding device according to claim 60, characterized in that the fusing assembly includes a heat insulating member arranged between the heat conducting member and the housing. An operating method of a cable winding and unwinding device, characterized in that it includes: the wire wheel rotates to release the cable; the driving assembly drives the tension pulley to rotate to guide the cable and keep the cable in a tensioned state. Among them, the driving assembly rotates synchronously with the tension pulley, and the tension of the cable on the tension pulley in the direction towards the wire wheel increases. In response to the increase of the tension to the critical value, the cable drives the tension pulley to rotate reversely relative to the driving assembly to reduce the tension. The operating method according to claim 62, characterized in that in the step of the driving assembly driving the tension pulley to rotate, the payout speed of the tension pulley is greater than the payout speed of the wire wheel to keep the cable in a tensioned state, and as the payout length of the wire wheel increases, the tension of the cable on the tension pulley in the direction towards the wire wheel gradually increases to the critical value. The operating method according to claim 62, characterized in that, the driving component is connected to the tensioning wheel through a differential mechanism, and the differential mechanism enables the tensioning wheel and the driving component to have relative movement; the critical value at least includes the sum of the driving force applied by the differential mechanism to the tensioning wheel and the gravity of the mounted load. The operating method according to claim 62, characterized in that, in the step of the driving component driving the tensioning wheel to rotate, as the wire release length of the wire wheel increases, the difference between the wire release speed of the tensioning wheel and the wire release speed of the wire wheel increases to ΔV1; in the step of the wire driving the tensioning wheel to rotate reversely relative to the driving component, the difference between the wire release speed of the tensioning wheel and the wire release speed of the wire wheel is ΔV2; wherein, ΔV2 is less than ΔV1. The operating method according to claim 65, characterized in that, ΔV2 is equal to 0. A tensioning mechanism is applied to a wire and cable winding and unwinding device, and the wire and cable winding and unwinding device can wind or release a wire and cable, characterized in that, comprising: a rotatable tensioning wheel; a driving component, the driving component is configured to drive the tensioning wheel to rotate, and the driving component and the tensioning wheel can rotate synchronously or relatively; wherein, the tensioning mechanism has a first working state and a second working state different from the first working state during the process of the wire and cable winding and unwinding device releasing the wire and cable; when the tensioning mechanism is in the first working state, the driving component drives the tensioning wheel to rotate synchronously; when the tensioning mechanism is in the second working state, the tensioning wheel rotates reversely relative to the driving component. The tensioning mechanism according to claim 67, characterized in that, further comprising a differential mechanism, and the driving component is connected to the tensioning wheel through the differential mechanism; the driving component drives the tensioning wheel through the differential mechanism so that the tensioning wheel and the driving component rotate synchronously or reversely. The tensioning mechanism according to claim 68, characterized in that, the differential mechanism includes a first matching part and a second matching part, the first matching part is connected to the driving component, the second matching part is connected to the tensioning wheel, and the driving component drives the tensioning wheel to rotate through the cooperation of the first matching part and the second matching part; wherein, when the tensioning mechanism is in the first working state, the first matching part and the second matching part cooperate to enable the first matching part to drive the second matching part to rotate synchronously; when the tensioning mechanism is in the second working state, the second matching part can rotate reversely relative to the first matching part under the drive of the wire and cable. The tensioning mechanism according to claim 69, characterized in that, the first matching part is in contact and cooperation with the second matching part, and an elastic part is arranged between the first matching part and the driving component, and the elastic part is used to provide an elastic force to push the first matching part towards the second matching part so that the first matching part can generate a driving force to drive the second matching part. The tensioning mechanism according to claim 70, characterized in that, The first mating portion includes an insert, the second mating portion includes a groove, and the insert is configured to be at least partially insertable into the groove. The tensioning mechanism according to claim 71, wherein, the differential mechanism includes a mounting seat connected to the driving assembly and rotatably mounted synchronously. The mounting seat is provided with an assembly groove and an opening communicating with the assembly groove. The insert and the elastic member are disposed in the assembly groove, and at least a part of the insert protrudes from the opening to cooperate with the groove. The tensioning mechanism according to claim 72, wherein, the first mating portion further includes a supporting member disposed between the insert and the elastic member, and the elastic member pushes the insert through the supporting member. The tensioning mechanism according to claim 73, wherein, the supporting member includes: a supporting portion abutting against the insert; a rod portion connected to the supporting portion, and the rod portion passes through the elastic member. The tensioning mechanism according to claim 72, wherein, the mounting seat includes: a seat body provided with the assembly groove; a cover plate connected to the seat body, and the cover plate is provided with the opening. The tensioning mechanism according to claim 70, wherein, the first mating portion includes a first friction member, the second mating portion includes a second friction member, and the second friction member abuts against the first friction member. The tensioning mechanism according to claim 69, wherein, one of the first mating portion and the second mating portion includes a first magnetic member, the other of the first mating portion and the second mating portion includes a second magnetic member or a magnetic attracting member, and the first mating portion and the second mating portion are magnetically connected so that the first mating portion can generate a driving force on the second mating portion. The tensioning mechanism according to claim 67, wherein, the tensioning wheel includes: a first spoke; a second spoke connected to the first spoke; wherein, on a side of the first spoke facing the second spoke, a plurality of first ribs extending radially are provided, the plurality of first ribs are arranged at intervals in the circumferential direction of the first spoke, on a side of the second spoke facing the first spoke, a plurality of second ribs extending radially are provided, the plurality of second ribs are arranged at intervals in the circumferential direction of the second spoke, and the first ribs and the second ribs are arranged in an alternating manner. The tensioning mechanism according to claim 67, wherein, the tensioning mechanism is used to guide the cable on the cable reel of the cable winding and unwinding device and keep the cable in a tensioned state. The driving assembly includes a transmission member and a rotating shaft assembly. The transmission member and the tensioning wheel are both disposed on the rotating shaft assembly. The transmission member is used for driving cooperation with the cable reel so that when the cable reel rotates, it can drive the rotating shaft assembly to rotate through the transmission member, and then drive the tensioning wheel to rotate. The tensioning mechanism according to claim 79, wherein, the transmission member includes a first gear and at least one second gear. The second gear meshes with the first gear, and the cable reel is provided with a third gear for meshing with the second gear. The tensioning mechanism according to claim 79, wherein, The driving assembly further includes: a one-way bearing, the transmission member is connected to the rotating shaft assembly through the one-way bearing, and the one-way bearing is configured such that the wire reel can drive the rotating shaft assembly to rotate only during wire pay-out. The tensioning mechanism according to claim 81, wherein, the rotating shaft assembly is in interference fit with the inner ring of the one-way bearing, and the transmission member is in interference fit with the outer ring of the one-way bearing. The tensioning mechanism according to claim 79, wherein, the driving assembly further includes: a retaining ring, sleeved on the rotating shaft assembly and located between the transmission member and the tensioning wheel. A movable platform, wherein, comprising: a movable main body; and the cable winding and unwinding device according to any one of claims 1 to 61; the cable winding and unwinding device is mounted on the movable main body. The movable platform according to claim 84, wherein, the movable platform includes at least one of the following: a hoisting vehicle, a tower crane, and an aircraft capable of carrying a load.

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