Dual Motor Wobble Cancelling Fitness Device

Abstract

The objective is to provide a dual motor wobble cancelling fitness device. [Solution] The present invention relates to the technical field of intelligent fitness, and particularly to a dual-motor wobble-cancelling fitness device, which includes a case, two sets of support racks symmetrically installed in the case, two sets of driving motors mounted on the two sets of support racks and arranged opposite to each other, a rope reel connected to the two sets of driving motors, a fitness pulling rope wound on the rope reel and extending outside the case, and a control system electrically connected to the driving motors, the control system including a main controller, a power module, a communication module, a driving circuit, and a sampling module, the power module is electrically connected to the main controller and the communication module, the communication module is electrically connected to the main controller, the sampling module is electrically connected to the driving motor and the main controller, and the driving circuit is electrically connected to the power module, the main controller, and the driving motor. The present invention uses two sets of symmetrical driving motors to drive the rope reels to transmit the fitness pulling rope, which can cancel out the wobble and vibration during the pulling rope fitness process, and also reduces the load on the single motor and improves stability.

Description

[Technical field]

[0001] [CROSS REFERENCE TO RELATED APPLICATIONS] This application claims priority to China Patent Application No. 202110758317.1, entitled "Dual Motor Wobble Cancellation Fitness Device", filed on July 05, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to the technical field of intelligent fitness, and in particular to a dual motor wobble cancellation fitness device. [Background technology]

[0003] With the improvement of people's living standards, robot vacuum cleaners are gradually integrated into people's home life. However, nowadays, the power source of the robot vacuum cleaner is a brush motor, and a reducer is used as a transmission device between the brush motor and an independent wheel, which realizes the function of reducing speed and increasing torque, and supplies power to the robot vacuum cleaner. With the evolution of the times and the progress of society, people are increasingly concerned about physical health, and fitness equipment is becoming more and more popular, and fitness can change mood, fight chronic diseases, control weight, strengthen heart and lung function, and promote better sleep. Summary of the Invention [Problem to be solved by the invention]

[0004] However, as the pace of life accelerates, people's life pressures increase, and most people's life rhythms become hectic and busy. They do not have enough time to exercise or train on a regular basis. Even if they want to exercise or train on holidays or when they have time, they cannot do so smoothly due to the influence of location and other factors. At present, fitness equipment on the market is of various types and has different functions. Among them, tension fitness is relatively simple and effective, but there is still room for improvement in tension fitness equipment for health promotion. Traditional tension fitness machines with adjustable tension are very bulky and take up a large installation space, while small and lightweight iron bars cannot change the magnitude of tension, making it very inconvenient to train.

[0005] To solve the above problems, the present invention provides a dual-motor wobble-cancelling fitness device, which realizes intelligent fitness by providing a fitness pulling rope on a driving motor, using the driving motor as a pulling force drive, and combining with a control system for controlling the pulling force of the driving motor. [Means for solving the problem]

[0006] To achieve the above objectives, the following technical solutions are adopted:

[0007] A dual motor wobble-canceling fitness device comprising: a case; two sets of support stands symmetrically mounted within the case; two sets of drive motors mounted on the two sets of support stands and arranged opposite each other; a rope reel connected to the two sets of drive motors; a fitness pulling rope wound around the rope reel and extending outside the case; and a control system electrically connected to the drive motors, the control system comprising a main controller, a power supply module, a communication module, a drive circuit, and a sampling module, the power supply module being electrically connected to the main controller and the communication module, the communication module being electrically connected to the main controller, the sampling module being electrically connected to the drive motors and the main controller, and the drive circuit being electrically connected to the power supply module, the main controller, and the drive motors.

[0008] The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will become apparent from the description, the accompanying drawings, and the claims. Effect of the Invention

[0009] Compared with the traditional fitness equipment, the present invention is a tension fitness equipment, which provides a fitness pulling rope to the driving motor, uses the driving motor as a pulling force drive, and cooperates with a control system to control the pulling force of the driving motor, thereby realizing intelligent fitness. In addition, the present invention uses two sets of symmetrical driving motors to drive the rope reel to transmit the fitness pulling rope, so that the wobble and vibration during the pulling rope fitness process can be offset with each other, and the load of the single motor is reduced, the stability is improved, and the whole structure is reliable and has a long service life. During the control process, the control system receives the pulling force command corresponding to the input through the communication module, and after the main controller obtains the command, it outputs the corresponding program to the driving circuit through the control algorithm, and the driving circuit controls the input or cut-off of the three-phase current of the driving motor, and then samples the current of the driving motor through the sampling module, and continuously compares and adjusts with the input command, so that the output pulling force of the driving motor reaches the input command value, and the above operation can realize the adjustment of any pulling force. Specifically, the device includes a case, two sets of support racks symmetrically mounted in the case, two sets of driving motors mounted on the two sets of support racks and arranged opposite to each other, a rope reel connected to the two sets of driving motors, a fitness pulling rope wound around the rope reel and extending outside the case, and a control system electrically connected to the driving motors, the control system including a main controller, a power supply module, a communication module, a driving circuit, and a sampling module, the power supply module is electrically connected to the main controller and the communication module, the communication module is electrically connected to the main controller, the sampling module is electrically connected to the driving motor and the main controller, and the driving circuit is electrically connected to the power supply module, the main controller, and the driving motor. The double support racks and dual driving motors are used to fix the rope reel, and the intelligent control action of the control system realizes intelligent motor control, which is highly intelligent.

[0010] To better depict and explain the embodiments and / or examples of the invention disclosed herein, reference may be made to one or more drawings, in which additional details or examples used to illustrate the drawings should not be construed as limitations on the scope of any of the disclosed inventions, the currently depicted embodiments and / or examples, and the best modes of these inventions as currently understood. [Brief description of the drawings]

[0011] [Figure 1] 1 is a three-dimensional view showing a schematic configuration of a fitness device according to the present invention; [Diagram 2] FIG. 2 is an exploded view of the fitness device of FIG. 1. [Diagram 3] FIG. 3 is a schematic diagram of the drive motor and the fitness pull rope of FIG. 2. [Figure 4] 1 is a front view showing a schematic configuration of a drive motor according to the present invention; [Diagram 5] FIG. 5 is a cross-sectional view taken along line AA in FIG. [Figure 6] 6 is a schematic three-dimensional view of a base portion of the drive motor of FIG. 5. [Figure 7] FIG. 2 is a schematic exploded view of a drive motor according to the present invention; [Figure 8] FIG. 2 is a schematic connection diagram of the control system of the present invention. [Figure 9] FIG. 9 is a circuit diagram of a main controller of the control system of FIG. 8. [Figure 10] FIG. 9 is a circuit diagram of a drive circuit of the control system of FIG. 8. [Figure 11] FIG. 9 is a circuit diagram of a communication module of the control system of FIG. 8. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] To facilitate understanding of the present invention, the present invention will now be described more comprehensively with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown. However, the present invention may be embodied in many different forms and is not limited to the embodiments depicted herein. Rather, these embodiments are intended to provide a complete understanding of the present disclosure.

[0013] It should be noted that when an element is referred to as "anchored" to another element, it may be directly on the other element, or there may be intervening elements. When an element is referred to as "connected" to another element, it may be directly connected to the other element, or there may be intervening elements.

[0014] Unless otherwise defined, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0015] As shown in Figures 1 to 11, the dual motor wobble cancellation fitness device includes a case 1, two sets of support racks 11 symmetrically mounted within the case 1, two sets of drive motors 2 mounted on the two sets of support racks 11 and arranged opposite each other, a rope reel 3 connected to the two sets of drive motors 2, a fitness pulling rope 31 wound around the rope reel 3 and extending outside the case 1, and a control system 4 electrically connected to the drive motors 2, the control system 4 includes a main controller 41, a power supply module 42, a communication module 43, a drive circuit 44, and a sampling module 45, the power supply module 42 is electrically connected to the main controller 41 and the communication module 43, the communication module 43 is electrically connected to the main controller 41, the sampling module 45 is electrically connected to the drive motors 2 and the main controller 41, and the drive circuit 44 is electrically connected to the power supply module 42, the main controller 41, and the drive motors 2.

[0016] The case 1 is provided with a control panel 12 connected to the communication module 43, and the operation can be controlled through the control panel 12, which is convenient to operate, has a simple structure, high reliability and is easy to use.

[0017] The support stand 11 comprises a top plate 111 and a fixed plate 112 attached to the top plate 111 and extending downward. The driving motor 2 is attached to the fixed plate 112. The top plate 111 cooperates with the fixed plate 112 to fix the driving motor 2, thereby making installation convenient and providing a stable structure.

[0018] As shown in Figures 4 to 7, the driving motor 2 includes a base portion 21, a stator assembly 22 provided on the outer edge of the base portion 21, a rotating shaft assembly 23 provided within the base portion 21, a rotor assembly 24 connected to the rotating shaft assembly 23 and covering the stator assembly 22, and a motor control board 25 provided on the base portion 21. The motor control board 25 is connected to a driving circuit 44. During the operation of the driving motor 2, the motor transmission is controlled via the motor control board 25. The transmission process is realized by the cooperation of the rotor assembly 24 and the stator assembly 22. The rotating shaft assembly 23 cooperates with the rotor assembly 24 to transmit stably inside the base portion 21, and the transmission accuracy is high.

[0019] The base portion 21 includes an inner mounting end 211, an outer mounting end 212, and a rotary mounting cavity 213 that penetrates the inner mounting end 211 and the outer mounting end 212. The rotary shaft assembly 23 is rotatably mounted in the rotary mounting cavity 213. The inner mounting end 211 is provided with a mounting base 211a. The outer mounting end 212 is provided with an inner mounting groove 212a. A convex ring is provided on the outer edge of the mounting base 211a. A mounting hole is formed in the convex ring. The mounting base 211a has a plurality of gaps 211b. The outer mounting end 212 is provided with a through hole, which is connected to the gap 211b and located on one side of the inner mounting groove 212a. The inner mounting end 211 and the outer mounting end 212 are used for mounting the inner structure and connecting the outer structure, respectively, and the rotary mounting cavity 213 is used for connecting and fixing the rotary shaft assembly 23. The mounting is simplified, and each gap 211b and the mounting base 21la are installed in accordance with the motor control board 25, resulting in high structural reliability.

[0020] The stator assembly 22 comprises an iron core 221 and coils 222 evenly arranged on the iron core 221. A plurality of sun ribs 223 are evenly arranged in the circumferential direction on the iron core 221, the coils 222 are wound around the sun ribs 223, and a plurality of fastening grooves corresponding to the inner diameter of the iron core 221 are drilled into the outer diameter of the inner mounting end 211. The coils 222 are wound around the sun ribs 223, resulting in a simple structure and high stability.

[0021] The rotating shaft assembly 23 comprises a bearing member 231 mounted in the rotating mounting cavity 213, and a rotating shaft 232 rotatably mounted on the bearing member 231. One end of the rotating shaft 232 is connected to the rotor assembly 24, and the other end is attached to a fixing device 233. The rotating mounting cavity 213 is provided with a first limiting groove and a second limiting groove. The bearing member 231 is provided with two bearings, which are mounted in the first limiting groove and the second limiting groove, respectively. A double bearing is used to mount the rotating shaft 232, providing a simple and stable structure.

[0022] The rotor assembly 24 comprises an outer end cap 241 connected to the rotating shaft assembly 23, a connecting ring 242 connected to the outer end cap 241 and corresponding to the outer edge of the stator assembly 22, and a rotor member 243 attached to the connecting ring 242 and corresponding to the stator assembly 22. An inner end cap 244 is connected to the side of the connecting ring 242 away from the outer end cap 241, and the inner end cap 244 is rotatably connected to the outer diameter of the outer mounting end 212. The outer end cap 241 cooperates with the connecting ring 242 for structural connection, and the rotor member 243 cooperates with the stator assembly 22 to realize the transmission of the motor, and the transmission is stable.

[0023] A reinforcing base 241a is provided on the outer end cover 241, a connecting hole is drilled in the reinforcing base 241a, a limiting base is provided in the connecting hole, the outer end cover 241 is connected to the rotating shaft assembly 23 via the connecting hole, a connecting bearing is connected to the inner end cover 244, and a sleeve is attached to the outer diameter of the outer mounting end 212 of the connecting bearing, and the outer end cover 241 is connected to the limiting base via the reinforcing base 241a, thereby making the connection simple and providing a stable structure.

[0024] The rope reel 3 is fixed to the outer end cover 241, and the fitness pulling rope 31 is provided with a handle 32. The fitness pulling rope 31 is operated through the handle 32, resulting in a stable and reliable structure.

[0025] As shown in Figures 8 to 11, the main controller 41 is an MCU processor, the communication module 43 is a communication interface, the communication interface is connected to the control panel 12, and the sampling module 45 is a current sampling module 45 for sampling the current of the driving motor 2. The MCU processor is adopted as the main controller 41, and further cooperates with the communication interface to realize intelligent control, which has good control effect and high intelligence.

[0026] The present invention is a tensile fitness device. A fitness tensile rope 31 is provided on a drive motor 2, and the drive motor 2 is used as a tensile force drive. By cooperating with a control system 4 for controlling the tensile force of the drive motor 2, intelligent fitness is realized. Further, the present invention drives a rope reel 3 with two sets of symmetric drive motors 2 to transmit the fitness tensile rope 31, and can cancel out the wobbling and vibration during the tensile rope fitness process with each other, reduce the load of a single motor, improve stability, and the overall structure is highly reliable and has a long service life. During the control process, the control system 4 receives a tensile force command corresponding to an input via a communication module 43. After the main controller 41 obtains the command, it outputs a corresponding program to a drive circuit 44 by a control algorithm. The drive circuit 44 controls the inflow or cutoff of the three-phase current of the drive motor 2. Next, a sampling module 45 samples the current of the drive motor 2, continuously compares and adjusts it with the input command, so that the output tensile force of the drive motor 2 reaches the input command value, and the adjustment of any tensile force can be realized by the above operations. Specifically, it includes a case 1, two sets of support frames 11 symmetrically installed in the case 1, two sets of drive motors 2 installed on the two sets of support frames 11 and arranged oppositely, a rope reel 3 connected to the two sets of drive motors 2, a fitness tensile rope 31 wound around the rope reel 3 and extending outside the case 1, and a control system 4 electrically connected to the drive motor 2. The control system 4 includes a main controller 41, a power supply module 42, a communication module 43, a drive circuit 44, and a sampling module 45. The power supply module 42 is electrically connected to the main controller 41 and the communication module 43. The communication module 43 is electrically connected to the main controller 41. The sampling module 45 is electrically connected to the drive motor 2 and the main controller 41. The drive circuit 44 is electrically connected to the power supply module 42, the main controller 41, and the drive motor 2. For the fixation of the rope reel 3, the cooperation of the double support frames 11 and the dual drive motors 2 is adopted, and further, through the intelligent control function of the control system 4, intelligent motor control is realized, and the intelligence is high.

[0027] The above-mentioned embodiments represent some embodiments of the present invention, and the description thereof is relatively specific and detailed, but should not be understood as a limitation on the patent scope of the present invention. It should be noted that a person skilled in the art can make some modifications and improvements without departing from the technical idea of ​​the present invention, and such modifications and improvements belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention is based on the scope of the attached claims. [Explanation of symbols]

[0028] 1 case 11 Support stand 111 Tabletop 112 Fixed plate 12 Control Panel 2 Drive motor 21 Base 211 Inner mounting end 211a Mounting stand 211b Gap 212 External mounting end 213 Rotational Mounting Cavity 22 Stator assembly 221 Iron Core 222 Coil 223 Sun Rib 23 Rotating shaft assembly 231 Bearing parts 232 Rotational Axis 233 Fixtures 24 Rotor assembly 241 Outer end cover 241a Reinforcement stand 241b Rope reel 242 Connected ring 243 Rotor member 244 Inner end cover 25 Motor Control Board 3 Rope reel 31 Fitness Pull Rope 32 Handle 32

Claims

1. A dual motor wobble cancellation fitness device, comprising: a case; two sets of support racks symmetrically mounted in the case; two sets of drive motors mounted on the two sets of support racks and arranged opposite to each other; a rope reel connected to the two sets of drive motors; a fitness pulling rope wound on the rope reel and extending outside the case; and a control system electrically connected to the drive motors, the control system comprising a main controller, a power supply module, a communication module, a drive circuit, and a sampling module, the power supply module being electrically connected to the main controller and the communication module, the communication module being electrically connected to the main controller, the sampling module being electrically connected to the drive motors and the main controller, the drive circuit being electrically connected to the power supply module, the main controller, and the drive motors; the drive motor includes a base portion, a stator assembly provided on an outer edge of the base portion, a rotating shaft assembly provided within the base portion, a rotor assembly connected to the rotating shaft assembly and covering the stator assembly, and a motor control board attached to the base portion and provided within the base portion, the motor control board being connected to the drive circuit; The main controller is an MCU processor, the communication module is a communication interface, the communication interface is connected to a control panel, and the sampling module is a current sampling module for sampling a current of the driving motor; The control system receives a tension command corresponding to the input through the communication module, and after the main controller obtains the tension command, outputs a corresponding program to the driving circuit, and the driving circuit controls the inflow or cutoff of three-phase current of the driving motor, and further samples the current of the driving motor through the sampling module, and continuously compares and adjusts with the input tension command, so that the value of the output tension of the driving motor reaches the value of the input tension command, thereby realizing arbitrary tension adjustment.

1. A dual motor wobble cancelling fitness device comprising:

2. 2. The dual motor wobble-canceling fitness device of claim 1, wherein the case is provided with a control panel connected to the communication module.

3. 2. The dual-motor wobble-canceling fitness device of claim 1, wherein the support platform comprises a top plate and a fixed plate attached to the top plate and extending downward, and the drive motor is attached to the fixed plate.

4. 2. The dual-motor wobble-canceling fitness device of claim 1, wherein the base portion comprises an inner mounting end, an outer mounting end, and a rotating mounting cavity penetrating the inner mounting end and the outer mounting end, the rotating shaft assembly is rotatably mounted in the rotating mounting cavity, the inner mounting end is provided with a mounting base, the outer mounting end is provided with an inner mounting groove, a convex ring is provided on an outer edge of the mounting base, the convex ring is provided with mounting holes, the mounting base is provided with a plurality of gaps, and the outer mounting end is provided with an insertion hole, the insertion hole communicates with the gap and is located on one side of the inner mounting groove.

5. 5. The dual motor wobble cancellation fitness device of claim 4, wherein the stator assembly comprises an iron core and a coil evenly arranged on the iron core, the iron core has a plurality of sun ribs evenly arranged in a circumferential direction, the coil is wound around the sun ribs, and the inner mounting end has an outer diameter provided with a plurality of fastening grooves corresponding to an inner diameter of the iron core.

6. 6. The dual motor wobble-canceling fitness device of claim 5, wherein the rotating shaft assembly comprises a bearing member mounted in the rotating mounting cavity, and a rotating shaft rotatably mounted on the bearing member, one end of the rotating shaft is connected to the rotor assembly and the other end is attached with a fastener, the rotating mounting cavity is drilled with a first limiting groove and a second limiting groove, the bearing member is provided with two bearings, and the two bearings are respectively mounted in the first limiting groove and the second limiting groove.

7. 7. The dual motor wobble cancelling fitness device of claim 6, wherein the rotor assembly comprises an outer end cap connected to the rotating shaft assembly, a connecting ring connected to the outer end cap and corresponding to an outer edge of the stator assembly, and a rotor member attached to the connecting ring and corresponding to the stator assembly, and an inner end cap is connected to the side of the connecting ring away from the outer end cap, and the inner end cap is rotatably connected to an outer diameter of the outer mounting end.

8. 8. The dual motor wobble-canceling fitness device of claim 7, wherein the outer end cover is provided with a reinforcing base, a connecting hole is drilled in the reinforcing base, a limiting base is provided in the connecting hole, the outer end cover is connected to the rotating shaft assembly through the connecting hole, a connecting bearing is connected to the inner end cover, a sleeve is attached to the outer diameter of the connecting bearing at the outer mounting end, the rope reel is fixed to the outer end cover, and a handle is provided on the fitness pulling rope.

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