Locking rope winding motor and strength training device

Abstract

The utility model discloses a locking rope winding motor and strength training device, which comprises a stator assembly, a rotor assembly and a rope winding assembly, the stator assembly comprises a fixed shaft and a stator iron core, and the rotor assembly comprises an outer rotor and a support; the rope winding assembly comprises a winding wheel, a positioning wheel and a locking screw, the winding wheel is connected to one side of the support, the fixing shaft and the axis of the winding wheel are collinear, the winding wheel is provided with a mounting groove and two rope penetrating holes, the positioning wheel is rotationally connected into the mounting groove, one end of each rope penetrating hole is formed in the groove wall of the mounting groove, and the other end of each rope penetrating hole is arranged on the winding face of the winding wheel. The positioning wheel is provided with a positioning through hole and at least one locking screw hole, the locking screw hole is vertically communicated with the positioning through hole, and the locking screw is in threaded connection with the locking screw hole so as to fix the position between the rope and the positioning wheel. The utility model provides a unified locking and fixing structure, the locking and positioning effect is accurate and firm, the consistency of applied products can be effectively improved, and the installation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of motor equipment, in particular to a locking rope winding motor and a strength training device. Background Art

[0002] A motor, also known as an electric motor, is a device that converts electrical energy into mechanical energy. It uses a stator winding to generate a rotating magnetic field and acts on an outer rotor to form a magnetoelectric dynamic rotating torque. The working principle of the motor is the action of the magnetic field on the current, which causes the motor to rotate.

[0003] With the continuous improvement of people's living standards, motors are more and more widely used. Through the cooperation with structures such as a speed reducer, motors can bring reliable accuracy and high torque to mechanical equipment and can be applied to equipment that requires high torque output. In related technologies, a motor is used to provide a counterweight for a strength training device for users to perform strength training. The motor and the output component of the strength training device are linked by a rope. The rope is wound around the outer rotor of the motor, and the rope and the outer rotor are fixed by tying. The operation is cumbersome, the differences in operation by different personnel are large, the error probability is high, the fixing effect is difficult to guarantee, resulting in poor consistency of the final applied product, low fixing efficiency of the rope, and unstable fixing effect. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a locking rope winding motor and a strength training device, which can effectively improve the consistency of the rope fixing structure, with a stable and firm fixing effect and high fixing efficiency.

[0005] A locking rope winding motor according to an embodiment of the first aspect of the utility model includes a stator assembly, a rotor assembly, and a rope winding assembly. The stator assembly includes a fixed shaft and a stator core. The stator core is used for winding an electromagnetic coil and is connected to the fixed shaft. The rotor assembly includes an outer rotor and a bracket. The outer rotor surrounds the stator core, and the outer rotor is connected to the bracket. The bracket is rotatably connected to the fixed shaft.

[0006] The rope winding assembly includes a winding wheel, a positioning wheel, and a locking screw. The winding wheel is connected to one side of the bracket. The fixed shaft and the axis of the winding wheel are collinear. The winding wheel is provided with an installation groove and two rope passing holes. The positioning wheel is rotatably connected to the installation groove. One end of the rope passing hole is provided on the groove wall of the installation groove, and the other end of the rope passing hole is provided on the winding surface of the winding wheel. The positioning wheel is provided with a positioning through hole and at least one locking screw hole. Both ends of the positioning through hole are provided on the circumferential surface of the positioning wheel. The rope passing hole and the positioning through hole are both used for passing a rope. The locking screw hole is vertically communicated with the positioning through hole. The number of locking screws is equal to the number of locking screw holes. The locking screws are threadedly connected to the locking screw holes to fix the position between the rope and the positioning wheel.

[0007] In this embodiment, two guiding grooves are provided on the winding surface of the winding wheel, and one ends of the two guiding grooves are respectively connected to two rope threading holes.

[0008] In this embodiment, a relief groove is provided on the side of the winding wheel away from the bracket, and the relief groove is connected to one side of the installation groove.

[0009] In this embodiment, the bracket includes a rear cover and a front cover. The rear cover and the front cover are respectively connected to opposite sides of the outer rotor, and are respectively located on opposite sides outside the stator core. The winding wheel is connected to the side of the front cover away from the stator core.

[0010] In this embodiment, a clamping block is provided on the side of the winding wheel close to the bracket, and the front cover is provided with a clamping groove matching the clamping block. The clamping block is clamped and connected in the clamping groove.

[0011] In this embodiment, there are multiple clamping blocks and clamping grooves and the numbers are equal. All the clamping grooves are evenly distributed along the circumferential trajectory, and the positions of each clamping block are opposite to those of each clamping groove.

[0012] In this embodiment, a coding groove is provided on the side of the front cover close to the winding wheel. The rotor assembly further includes a rotary encoder disposed in the coding groove, and the rotary encoder is used to monitor the rotation position of the outer rotor.

[0013] In this embodiment, the radius of the winding wheel is smaller than the radius of the outer rotor.

[0014] A strength training device according to the second aspect embodiment of the present utility model includes the locking rope winding motor of the first aspect embodiment described above.

[0015] In this embodiment, it further includes a base, a rope, a static pulley, a movable pulley and a lifting block. One end of the rope is connected to the rope winding assembly, and the other end of the rope is connected to the base. The static pulley is rotatably connected to the base, the movable pulley is rotatably connected to the lifting block, the lifting block is used to connect the training output structure, and the rope is wound around the static pulley and the movable pulley in sequence.

[0016] The embodiment of the present utility model has at least the following beneficial effects:

[0017] Through the positioning wheel and locking screw in the rope winding assembly, the rope can be accurately locked and fixed. The end of the rope can be fixed on the positioning wheel, thus fixing the position between the rope and the winding wheel. By providing a unified locking and fixing structure, the reliability of the locking and fixing effect can be effectively ensured, and the problems caused by manual operation can be effectively reduced. The locking and positioning effect is accurate and reliable. By threading the rope and tightening the locking screw, the locking and positioning of the rope can be achieved. The installation operation of the locking and positioning is simple, the installation efficiency is high, the locking and fixing structure of the rope has high consistency, the consistency of the applied products can be effectively improved, and the quality of the applied products is high. In addition, by setting a rotatable positioning wheel and cooperating with the rope threading holes on both sides, rotating the positioning wheel can align the positioning through hole with one of the rope threading holes for the rope to pass through one of the rope threading holes and the positioning through hole in sequence. According to different application scenarios, the winding installation requirements in different directions can be met, the adaptability is strong, and the application range is wide. The rope can enter the positioning through hole from different rope threading holes, the flexibility of the installation operation is strong, the installation operation can be further simplified, and the installation efficiency is high. Brief Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 is a three-dimensional structural schematic diagram of the locking rope winding motor according to an embodiment of the present utility model;

[0020] Figure 2 is a three-dimensional structural schematic diagram of the locking rope winding motor according to an embodiment of the present utility model from another perspective;

[0021] Figure 3 is a top view structural schematic diagram of the locking rope winding motor according to an embodiment of the present utility model;

[0022] Figure 4 is the Figure 3 sectional structural schematic diagram along A - A' in

[0023] Figure 5 is the Figure 3 sectional structural schematic diagram along B - B' in

[0024] Figure 6 is an exploded structural schematic diagram of the locking rope winding motor according to an embodiment of the present utility model;

[0025] Figure 7 is an exploded structural schematic diagram of the locking rope winding motor according to an embodiment of the present utility model from another perspective;

[0026] Figure 8 is a structural schematic diagram of the strength training device according to an embodiment of the present utility model.

[0027] Reference Signs:

[0028] Stator assembly 100, fixed shaft 110, stator core 120;

[0029] Rotor assembly 200, outer rotor 210, bracket 220, rear cover 221, front cover 222, clamping groove 223, coding groove 224, rotary encoder 230;

[0030] Rope winding assembly 300, winding wheel 310, mounting groove 311, rope threading hole 312, guiding groove 313, relief groove 314, clamping block 315, positioning wheel 320, positioning through hole 321, locking screw hole 322, locking screw 330;

[0031] Base 410, rope 420, static pulley 430, movable pulley 440, lifting block 450. Detailed Implementation Manner

[0032] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, rear, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] An electric motor, also known as a motor, is a device that converts electrical energy into mechanical energy. It uses a stator winding to generate a rotating magnetic field and acts on an outer rotor to form a magnetoelectric dynamic rotating torque. The working principle of the motor is the action of a magnetic field on an electric current, which causes the motor to rotate.

[0037] With the continuous improvement of people's living standards, motors are increasingly widely used. Through motors, structures such as speed reducers can be used to make mechanical equipment bring reliable accuracy and high torque, and can be applied to equipment that requires high torque output. Traditional strength trainers directly counterweight through counterweight blocks, and adjust the output force by increasing or decreasing the counterweight blocks. The adjustment operation is cumbersome and there are safety problems such as the counterweight blocks falling. In related technologies, a motor is used to provide counterweight for the strength trainer for users to carry out strength training. The adjustment operation is convenient. The motor and the output component of the strength trainer are linked by a rope. The rope is wound around the outer rotor of the motor, and the rope and the outer rotor are fixed by tying. For the application requirements of different scenarios, operators need to perform complex winding and tying operations. The operation is cumbersome and the differences in operations by different people are large, with a high probability of errors. It is difficult to ensure the fixing effect, resulting in poor consistency of the final application products, low fixing efficiency of the rope, and unstable fixing effect. Moreover, the flexibility is significantly insufficient, making it difficult to meet the application requirements of different scenarios. The tying fixing method is unstable, which will lead to unstable operation of the application product and increase the maintenance cost.

[0038] The following refers to the attached Figure 1 to the attached Figure 8 , describe the locking rope-winding motor and strength trainer of the embodiments of the present invention, which can effectively improve the consistency of the rope fixing structure, with a stable and firm fixing effect and high fixing efficiency.

[0039] Referring to Figures 1 to 7 As shown in [figure number not provided], a locking rope-winding motor according to an embodiment of the first aspect of the present invention includes a stator assembly 100, a rotor assembly 200, and a rope-winding assembly 300. The stator assembly 100 includes a fixed shaft 110 and a stator core 120. The stator core 120 is used for winding electromagnetic coils, and the stator core 120 is fixedly connected to the fixed shaft 110. The rotor assembly 200 includes an outer rotor 210 and a bracket 220. The outer rotor 210 is in a circular ring shape, and the outer rotor 210 surrounds the stator core 120. The outer rotor 210 is fixedly connected to the bracket 220. The bracket 220 is rotatably connected to the fixed shaft 110 so that the bracket 220 can rotate around the fixed shaft 110 and the outer rotor 210 can also rotate around the fixed shaft 110. Specifically, the bracket 220 is rotatably connected to the fixed shaft 110 through a bearing. The outer rotor 210 can be specifically set as a steel sleeve. A plurality of magnets are fixedly connected to the inner side of the outer rotor 210. Through the principle of electromagnetic induction, the magnets can move under the drive of the stator core 120 wound with electromagnetic coils, so that the outer rotor 210 rotates around the fixed shaft 110. A uniform spacing is formed between the magnets on the inner side of the outer rotor 210 and the stator core 120, which can ensure the normal rotation of the outer rotor 210;

[0040] The rope winding assembly 300 includes a winding wheel 310, a positioning wheel 320, and a locking screw 330. Preferably, the locking screw 330 is a Jimi screw. Both the winding wheel 310 and the positioning wheel 320 are flat cylindrical block structures. The rope winding assembly 300 is connected to one side of the rotor assembly 200. The winding wheel 310 is fixedly connected to one side of the bracket 220. The winding wheel 310 is rotatably connected to the fixed shaft 110 through a bearing. The axis of the fixed shaft 110 is collinear with the axis of the winding wheel 310. The winding wheel 310 is provided with an installation groove 311 and two rope threading holes 312. The installation groove 311 is located on the side of the winding wheel 310 away from the bracket 220. The positioning wheel 320 is rotatably connected in the installation groove 311. One end of each rope threading hole 312 penetrates through the wall of the installation groove 311, and the other end of each rope threading hole 312 penetrates through the winding surface of the winding wheel 310. The rope threading holes 312 communicate the installation groove 311 with the outside of the winding surface of the winding wheel 310. The positioning wheel 320 is provided with a positioning through hole 321 and at least one locking screw hole 322. Both ends of the positioning through hole 321 penetrate through the opposite circumferential surfaces of the positioning wheel 320, so that the spaces on the opposite sides in the circumferential direction of the positioning wheel 320 are communicated through the positioning through hole 321. Both the rope threading holes 312 and the positioning through hole 321 are used for threading the rope 420. The winding wheel 310 is used for winding the rope 420. Through the cooperation of the two rope threading holes 312 and the rotatable positioning wheel 320 and the positioning through hole 321 inside it, the rope 420 can enter the positioning through hole 321 from two directions through the rope threading holes 312, which is convenient for use. The rope 420 can be a hemp rope, a steel cable, a composite rope 420, etc. The opposite ends of the locking screw hole 322 penetrate through the opposite sides of the positioning wheel 320. The locking screw hole 322 is vertically communicated with the positioning through hole 321. The number of locking screws 330 is equal to the number of locking screw holes 322. Each locking screw 330 is threadedly connected to the corresponding locking screw hole 322 from the side of the positioning wheel 320 away from the bracket 220. Preferably, there are two locking screws 330 and two locking screw holes 322, which can improve the locking and positioning stability of the rope 420 in a limited space to fix the position between the rope 420 and the positioning wheel 320. Since the position of the rope 420 is locked in the positioning through hole 321 and the rope 420 is simultaneously threaded in the rope threading holes 312 and the positioning through hole 321, the locking screw 330 is threadedly connected to the locking screw hole 322, and the rope 420 is pushed and locked towards the bottom of the installation groove 311, thereby effectively fixing the position between the rope 420 and the positioning wheel 320 and effectively fixing the position between the rope 420 and the winding wheel 310. Preferably, the distance between the positioning wheel 320 and the inner wall of the installation groove 311 is less than the diameter of the rope 420. The rope 420 is clamped and fixed between the circumferential surface of the positioning wheel 320 and the inner wall of the installation groove 311, which can effectively improve the firmness of the locking action of the rope 420.

[0041] When installing the rope 420, loosen the locking screw 330 from the locking screw hole 322, insert one end of the rope 420 through one of the rope threading holes 312, rotate the positioning wheel 320 so that one end of the positioning through hole 321 faces the rope threading hole 312 through which the rope 420 is threaded. The rope 420 passes through the rope threading hole 312 and enters the positioning through hole 321. Then, tighten the locking screw 330 into the locking screw hole 322. The locking screw 330 fixes the rope 420 to the positioning wheel 320, thus realizing the fixation between the rope 420 and the winding wheel 310. Similarly, if the rope 420 needs to be installed by threading from the other direction, insert one end of the rope 420 through the other rope threading hole 312, and rotate the positioning wheel 320 to align this rope threading hole 312 with the positioning through hole 321. Finally, fix the rope 420 to the positioning wheel 320 through the locking screw 330.

[0042] Through the positioning wheel 320 and the locking screw 330 in the rope winding assembly 300, the rope 420 can be accurately locked and fixed. The end of the rope 420 can be fixed to the positioning wheel 320, thereby fixing the position between the rope 420 and the winding wheel 310. Compared with the traditional method of fixing the rope 420 by tying knots, this locking winding motor provides a unified locking and fixing structure, which can effectively ensure the reliability of the locking and fixing effect, can effectively reduce problems such as misoperation caused by manual operation, and the locking and positioning effect is accurate and reliable. By threading the rope 420 and tightening the locking screw 330, the locking and positioning of the rope 420 can be realized. The operation difficulty for the operator is low, the installation operation of locking and positioning is simple, the installation efficiency is high, the locking and fixing structure of the rope 420 has high consistency, which can effectively improve the consistency of the applied products, and the quality of the applied products is high. In addition, by setting the rotatable positioning wheel 320 in cooperation with the rope threading holes 312 on both sides, rotating the positioning wheel 320 can align the positioning through hole 321 with one of the rope threading holes 312 for the rope 420 to pass through the rope threading hole 312 and the positioning through hole 321 in sequence. According to different application scenarios, it can meet the winding installation requirements in different directions, has strong adaptability and a wide application range. The rope 420 can enter the positioning through hole 321 from different rope threading holes 312, and the flexibility of the installation operation is strong, which can further simplify the installation operation and improve the installation efficiency.

[0043] The positioning through hole 321 is arranged along the radial direction of the positioning wheel 320, which can effectively increase the contact area between the rope 420 and the positioning wheel 320, and at the same time facilitate the threading operation of the rope 420.

[0044] It can be understood that two guiding grooves 313 are provided on the winding surface of the winding wheel 310. The guiding grooves 313 extend along the winding surface of the winding wheel 310. One ends of the two guiding grooves 313 are respectively connected to two rope passing holes 312, and the other ends of the guiding grooves 313 are connected to the winding surface of the winding wheel 310. The guiding grooves 313 are used to accommodate the front section of the rope 420. The bottom of the guiding groove 313 is smoothly connected to the winding surface of the winding wheel 310. By setting the guiding grooves 313 to limit the position of the rope 420, not only can the stability of the position of the rope 420 during locking and positioning be effectively improved, but also the contact area between the rope 420 and the winding wheel 310 can be effectively increased, thereby effectively reducing the burden on the rope 420 and effectively extending the service life of the rope 420.

[0045] It can be understood that a relief groove 314 is provided on the side of the winding wheel 310 away from the bracket 220. The relief groove 314 is connected to one side of the installation groove 311. Through the relief groove 314, it is convenient to rotate and adjust the positioning wheel 320.

[0046] Specifically, there are two relief grooves 314. The two relief grooves 314 are respectively connected to both sides of the positioning wheel 320. The two wire passing holes are respectively opposite to the two relief grooves 314. In addition to providing relief for the user to adjust the positioning wheel 320, the relief grooves 314 are also used to provide relief for the threading of the rope 420, enabling the end of the rope 420 to pass out from one end of the positioning through hole 321 into the relief groove 314, so that the locking screw 330 can lock and position the area near the middle of the rope 420, effectively improving the stability of the locking and positioning structure, and at the same time effectively improving the stability of the structure of the rope 420 and extending the service life of the rope 420.

[0047] It can be understood that the bracket 220 includes a rear cover 221 and a front cover 222. The rear cover 221 and the front cover 222 are respectively fixedly connected to opposite sides of the outer rotor 210. The rear cover 221 and the front cover 222 are respectively located on opposite sides outside the stator core 120. The winding wheel 310 is fixedly connected to the side of the front cover 222 away from the stator core 120. Preferably, the connection between the winding wheel 310 and the front cover 222 can be fixed through screw holes.

[0048] It can be understood that a clamping block 315 is provided on one side of the winding wheel 310 close to the bracket 220, and a clamping groove 223 matching the clamping block 315 is provided on the front cover 222. The clamping block 315 is clamped and connected in the clamping groove 223. By the cooperation of the clamping block 315 and the clamping groove 223, the force-bearing contact area between the front cover 222 and the winding wheel 310 can be effectively increased, and the firmness and stability of the connection structure between the front cover 222 and the winding wheel 310 can be effectively improved. Especially when the front cover 222 and the winding wheel 310 are fixedly connected through screw holes, the cooperation of the clamping block 315 and the clamping groove 223 can significantly extend the service life of the screw hole connection structure and effectively ensure the working performance of this locking winding motor.

[0049] Specifically, limiting disks are provided on both opposite sides of the winding wheel 310. The radius of the limiting disk is greater than the radius of the winding wheel 310. The limiting disk is used to limit the rope 420 wound on the winding wheel 310, so as to improve the stability of the winding effect and avoid the deviation of the winding of the rope 420. The clamping block 315 can be specifically fixed outside the limiting disk on the side of the winding wheel 310 close to the front cover 222.

[0050] It can be understood that a plurality of clamping blocks 315 and clamping grooves 223 are provided, and the number of clamping blocks 315 is equal to the number of clamping grooves 223. All the clamping grooves 223 are evenly distributed along a circular trajectory with the rotating shaft as the center. The positions of the respective clamping blocks 315 are opposite to the positions of the respective clamping grooves 223. Through the plurality of clamping grooves 223 and clamping blocks 315 distributed along the circular trajectory, a stable and firm positioning effect can be formed.

[0051] It can be understood that a coding groove 224 is provided on one side of the front cover 222 close to the winding wheel 310. The rotor assembly 200 further includes a rotary encoder 230 disposed in the coding groove 224. The rotary encoder 230 is located on the side of the winding wheel 310 close to the front cover 222. The rotary encoder 230 is used to monitor the rotation position of the outer rotor 210 relative to the fixed shaft 110. By the feedback of the rotary encoder 230 on the rotation angle of the outer rotor 210, higher-precision servo control can be achieved. The rotary encoder 230 is a device used to measure the rotational speed and can achieve fast speed regulation in cooperation with the PWM technology. The photoelectric rotary encoder 230 can convert mechanical quantities such as the angular displacement and angular velocity of the output shaft into corresponding electrical pulses and output them in digital quantities through photoelectric conversion.

[0052] The rotary encoder 230 is installed by opening a coding slot 224. The rotary encoder 230 is arranged between the winding wheel 310 and the front cover 222, which can effectively protect the rotary encoder 230, reduce the probability of damage to the rotary encoder 230 due to external factors, effectively extend the service life of the rotary encoder 230, and thus reduce the maintenance frequency of the locking winding motor. When the locking winding motor of the present utility model is set as a servo motor, the output speed and torque are controlled by a voltage signal, and the output parameters are monitored by the rotary encoder 230.

[0053] It can be understood that the radius of the winding wheel 310 is smaller than the radius of the outer rotor 210. By shortening the radius of the position where the motor applies force through the wire wheel, the torque output by the motor with the outer rotor 210 is amplified. And by combining the output of the outer rotor 210 and the structure of the wire wheel with a small radius, the load capacity of the motor can be effectively improved, and it has strong adaptability to equipment with high load requirements such as strength training machines.

[0054] Refer to the attached Figure 8 As shown, a strength training device according to an embodiment of the second aspect of the present utility model includes the locking winding motor according to any one of the first aspect embodiments above.

[0055] It can be understood that the strength training device further includes a base 410, a rope 420, a fixed pulley 430, a movable pulley 440, and a lifting block 450. One end of the rope 420 is connected to the winding assembly 300. Specifically, reference can be made to the way in which the rope 420 is locked and positioned on the positioning wheel 320 in the first aspect embodiment. The other end of the rope 420 is fixedly connected to the base 410. The fixed pulley 430 is rotatably connected to the base 410. The movable pulley 440 is rotatably connected to the lifting block 450. The lifting block 450 is used to connect the training output structure, such as a push-pull handle and other structures. The lifting block 450 is used to form a force twice that of the output of the locking winding motor. The rope 420 is wound around the fixed pulley 430 and the movable pulley 440 in sequence. Specifically, a lifting guide rail can be provided on the base 410. The lifting block 450 is slidably connected to the lifting guide rail, and the lifting block 450 can achieve a stable and reliable lifting movement under the limitation of the lifting guide rail. Among them, the lifting track is not drawn in Figure 8 the figure.

[0056] According to the separation principle of the movable pulley 440, the force output by the locking winding motor can output twice the force through the lifting block 450, which can effectively improve the load capacity of the strength training device. For example, a force of 150 kilograms output by the locking winding motor can output a force of 300 kilograms through the lifting block 450.

[0057] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A locking rope winding motor, characterized in that, It includes a stator assembly (100), a rotor assembly (200) and a rope winding assembly (300). The stator assembly (100) includes a fixed shaft (110) and a stator core (120). The stator core (120) is used for winding an electromagnetic coil. The stator core (120) is connected to the fixed shaft (110). The rotor assembly (200) includes an outer rotor (210) and a bracket (220). The outer rotor (210) surrounds the outside of the stator core (120). The outer rotor (210) is connected to the bracket (220). The bracket (220) is rotatably connected to the fixed shaft (110). The rope winding assembly (300) includes a winding wheel (310), a positioning wheel (320) and a locking screw (330). The winding wheel (310) is connected to one side of the bracket (220). The fixed shaft (110) and the axis of the winding wheel (310) are collinear. The winding wheel (310) is provided with an installation groove (311) and two rope passing holes (312). The positioning wheel (320) is rotatably connected in the installation groove (311). One end of the rope passing hole (312) is arranged on the groove wall of the installation groove (311), and the other end of the rope passing hole (312) is arranged on the winding surface of the winding wheel (310). The positioning wheel (320) is provided with a positioning through hole (321) and at least one locking screw hole (322). Both ends of the positioning through hole (321) are arranged on the circumferential surface of the positioning wheel (320). The rope passing hole (312) and the positioning through hole (321) are both used for passing a rope (420). The locking screw hole (322) is vertically communicated with the positioning through hole (321). The number of the locking screws (330) is equal to the number of the locking screw holes (322). The locking screws (330) are threadedly connected to the locking screw holes (322) to fix the position between the rope (420) and the positioning wheel (320).

2. The locking rope winding motor according to claim 1, wherein, The winding surface of the winding wheel (310) is provided with two guiding grooves (313). One ends of the two guiding grooves (313) are respectively connected to the two rope passing holes (312).

3. A locking rope winding motor according to claim 1, characterized in that, One side of the winding wheel (310) away from the bracket (220) is provided with a relief groove (314). The relief groove (314) is connected to one side of the installation groove (311).

4. A locking rope winding motor according to claim 1, characterized in that, The bracket (220) includes a rear cover (221) and a front cover (222). The rear cover (221) and the front cover (222) are respectively connected to opposite sides of the outer rotor (210). The rear cover (221) and the front cover (222) are respectively located outside opposite sides of the stator core (120). The winding wheel (310) is connected to the side of the front cover (222) away from the stator core (120).

5. A locking winding motor according to claim 4, characterized in that, One side of the winding wheel (310) close to the bracket (220) is provided with a clamping block (315), the front cover (222) is provided with a clamping groove (223) matching the clamping block (315), and the clamping block (315) is clamped and connected in the clamping groove (223).

6. A locking rope winding motor according to claim 5, characterized in that, Both the clamping block (315) and the clamping groove (223) are provided with a plurality of them and the number is equal. All the clamping grooves (223) are evenly distributed along the circumferential trajectory, and the positions of the respective clamping blocks (315) are opposite to the positions of the respective clamping grooves (223).

7. A locking rope winding motor according to any one of claims 4 to 6, characterized in that One side of the front cover (222) close to the winding wheel (310) is provided with a coding groove (224), and the rotor assembly (200) further includes a rotary encoder (230) disposed in the coding groove (224), and the rotary encoder (230) is used to monitor the rotation position of the outer rotor (210).

8. A locking rope winding motor according to claim 1, characterized in that, The radius of the winding wheel (310) is smaller than the radius of the outer rotor (210).

9. A strength training device, characterized in that, Including the locking rope winding motor according to any one of claims 1 to 8.

10. A strength training device according to claim 9, characterized in that, It further includes a base (410), a rope (420), a fixed pulley (430), a movable pulley (440) and a lifting block (450). One end of the rope (420) is connected to the rope winding assembly (300), the other end of the rope (420) is connected to the base (410), the fixed pulley (430) is rotatably connected to the base (410), the movable pulley (440) is rotatably connected to the lifting block (450), the lifting block (450) is used to connect the training output structure, and the rope (420) is sequentially wound around the fixed pulley (430) and the movable pulley (440).

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