Permanent magnet type resistance simulation device

Abstract

The present application relates to a permanent magnet resistance simulation device, comprising: a base; a motor arranged on the base and having a torque output shaft, and being equipped with a torque data encoder and a rotation speed controller; a transmission shaft arranged on the base and being coaxial with the torque output shaft, and being equipped with a motion data encoder; a pair of flywheels coupled to the torque output shaft and the transmission shaft, and being equipped with magnets and magnetic conductive sheets; a rope reel arranged on the transmission shaft and being wound with a rope, and being equipped with a one-way clutch between the rope reel and the transmission shaft; a spiral spring arranged on the transmission shaft; and a control system receiving torque data of the torque data encoder and motion data of the motion data encoder, and sending motor rotation speed control data to the rotation speed controller; thereby achieving the effect of linearly adjusting motion resistance by adjusting motor rotation speed.

Description

TECHNICAL FIELD

[0001] The present invention relates to a permanent magnet type resistance simulation device, in particular to a design that uses a double rotor non-contact torque transmission structure to linearly simulate motor torque as movement resistance. BACKGROUND

[0002] As shown in Figure 1 The conventional muscle strength training machine 10 uses iron blocks 11 as load resistance, and allows users to pull up the iron blocks 11 through a handle 12 and a cable 13 to shape muscles, promote physiological functions, and maintain physical health. However, the conventional muscle strength training machine has the following shortcomings: 1. The iron blocks 11 are large in size and take up space, and it is quite time-consuming and laborious to adjust the movement resistance, 2. When the iron blocks 11 are pulled up and then put down by the cable 13, a great impact noise is generated, 3. The movement curve cannot be set to change the movement resistance, so the movement function is limited.

[0003] In addition, TW M697670 / US 11173343 discloses a "muscle strength training machine" that combines a winding reel on the output shaft of a speed reduction mechanism, so that the torque generated by the motor is directly transmitted to the winding reel, which belongs to a "contact torque transmission structure" design. However, this design has the following shortcomings: 1. A larger power motor must be used to provide sufficient movement resistance, 2. Adjusting the motor speed cannot linearly adjust the movement resistance. SUMMARY

[0004] The main purpose of the present invention is to provide a permanent magnet type resistance simulation device that linearly adjusts the movement resistance by adjusting the motor speed.

[0005] To achieve the above-mentioned effects, the technical features of the present invention include: a base; a motor arranged on the base and having a torque output shaft, and being equipped with a torque data encoder and a speed controller; a transmission shaft arranged on the base and having the same axial direction as the torque output shaft, and being equipped with a movement data encoder; a pair of flywheels coupled to the torque output shaft and the transmission shaft, and the pair of flywheels being coupled with magnets and magnetic guide plates; a winding reel arranged on the transmission shaft and wound with a rope, and a one-way clutch being arranged between the winding reel and the transmission shaft; a spiral spring arranged on the transmission shaft; and a control system receiving torque data from the torque data encoder and movement data from the movement data encoder, and sending motor speed control data to the speed controller.

[0006] Furthermore, the control system has a torque data resolver, a motion data resolver, a resistance demand setting unit, a torque demand calculation unit and a target rotation speed calculation unit; the torque data resolver receives the torque data of the torque data encoder to resolve the motor rotation data and the motor rotation speed data; the motion data resolver receives the motion data of the motion data encoder to resolve the transmission shaft rotation data, the transmission shaft rotation speed data and the rope pulling length data; the torque demand calculation unit receives the motor rotation data and the motor rotation speed data of the torque data resolver, the transmission shaft rotation speed data and the rope pulling length data of the motion data resolver, and the resistance demand data inputted by the resistance demand setting unit to calculate the torque demand data; the target rotation speed calculation unit receives the transmission shaft rotation data and the transmission shaft rotation speed data of the motion data resolver, and the torque demand data of the torque demand calculation unit to calculate the target rotation speed data; and the rotation speed controller receives the motor rotation speed data of the torque data resolver and the target rotation speed data of the target rotation speed calculation unit to control the rotation speed of the motor.

[0007] Furthermore, the magnet is a permanent magnet and the magnetic conducting sheet is a copper sheet. The base has a bottom plate, a torque output shaft bracket, a transmission shaft bracket and a bracket reinforcing plate. The motor is matched with a speed reducer. The transmission shaft bracket is further provided with a rope winding wheel cover and a transmission shaft bearing seat. The rope winding wheel cover is further provided with a volute spring cover. Bearings are arranged between the transmission shaft bearing seat and the transmission shaft, and between the rope winding wheel and the transmission shaft. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a structural perspective view of a conventional muscle strength training machine.

[0009] Figure 2 It is an exploded view of the structure of the present application.

[0010] Figure 3 It is a structural perspective view of the present application.

[0011] Figure 4 It is a sectional view of the structure of the present application.

[0012] Figure 5A It is Figure 4 It is a sectional view of the structure of the present application.

[0013] Figure 5B It is Figure 5A It is an enlarged view of the position marked 5B.

[0014] Figure 6 It is a block diagram of the control system of the present application.

[0015] Figure 7 It is a partial exploded view of the structure of the present application.

[0016] Figure 8 Figure 2 is a diagram showing that the motor speed is linearly proportional to the torque of the present application.

[0017] BRIEF DESCRIPTION OF DRAWINGS 10 - muscle training machine; 11 - iron block; 12 - grip bar; 13 - cable; 20 - base; 21 - bottom plate; 22 - torque output shaft bracket; 23 - transmission shaft bracket; 24 - bracket reinforcement plate; 25 - cable winding wheel cover; 26 - volute spring cover; 31 - motor; 32 - speed reducer; 33 - torque output shaft; 34 - torque data encoder; 35 - speed controller; 40 - transmission shaft; 41 - transmission shaft bearing seat; 42 - bearing; 43 - motion data encoder; 51, 52 - flywheel; 53 - magnet; 54 - magnetic conducting sheet; 60 - cable winding wheel; 61 - rope; 62 - one-way clutch; 63 - bearing; 70 - volute spring; 80 - control system; 81 - torque data resolver; 82 - motion data resolver; 83 - resistance demand setting unit; 84 - torque demand calculation unit; 85 - target speed calculation unit. DETAILED DESCRIPTION

[0018] First, referring to Figures 2-6 the present application includes: a base 20 having a bottom plate 21, a torque output shaft bracket 22, a transmission shaft bracket 23 and a bracket reinforcement plate 24; a motor 31 coupled with a speed reducer 32, a torque data encoder 34 and a speed controller 35, the speed reducer 32 is disposed in the torque output shaft bracket 22 and has a torque output shaft 33, the motor 31 is combined with the speed reducer 32; a transmission shaft 40 is disposed in the transmission shaft bracket 23 through a transmission shaft bearing seat 41 and is in the same axial direction as the torque output shaft 33, and is coupled with a motion data encoder 43, the transmission shaft bearing seat 41 and the transmission shaft 40 are provided with a bearing 42; a pair of flywheels 51, 52 are coupled and disposed in the torque output shaft 33 and the transmission shaft 40, and the pair of flywheels 51, 52 are coupled with a magnet 53 and a magnetic conducting sheet 54, the magnet 53 is a permanent magnet, and the magnetic conducting sheet 54 can be a copper sheet; a cable winding wheel 60 is disposed in the transmission shaft 40 and is wound with a rope 61, and the cable winding wheel 60 and the transmission shaft 40 are provided with a one-way clutch 62 and a bearing 63, and a cable winding wheel cover 25 is provided opposite the cable winding wheel 60 in the transmission shaft bracket 23; a volute spring 70 is disposed in the transmission shaft 40, and a volute spring cover 26 is provided opposite the volute spring 70 in the cable winding wheel cover 25; and a control system 80 receives torque data from the torque data encoder 34 and motion data from the motion data encoder 43, and sends motor speed control data to the speed controller 35.

[0019] The control system 80 has a torque data resolver 81, a motion data resolver 82, a resistance demand setting unit 83, a torque demand calculating unit 84, and a target speed calculating unit 85. The torque data resolver 81 receives the torque data from the torque data encoder 34 and resolves the motor steering data Dm and the motor speed data ωm. The motion data resolver 82 receives the motion data from the motion data encoder 43 and resolves the transmission shaft steering data Du, the transmission shaft speed data ωu, and the rope pulling length data Lu. The torque demand calculating unit 84 receives the motor steering data Dm and the motor speed data ωm from the torque data resolver 81, the transmission shaft speed data ωu and the rope pulling length data Lu from the motion data resolver 82, and the resistance demand data Fr from the resistance demand setting unit 83, and calculates the torque demand data Tr. The target speed calculating unit 85 receives the transmission shaft steering data Du and the transmission shaft speed data ωu from the motion data resolver 82, and the torque demand data Tr from the torque demand calculating unit 84, and calculates the target speed data ωt. The speed controller 35 receives the motor speed data ωm from the torque data resolver 81 and the target speed data ωt from the target speed calculating unit 85, and controls the speed of the motor 31.

[0020] Based on the above configuration, the motor 31 and the speed reducer 32 generate torque, which is transmitted to the transmission shaft 40 through the pair of flywheels 51 and 52 coupled with the magnet 53 and the magnetic sheet 54 when the rope 61 wound around the rope wheel 60 provided on the transmission shaft 40 is pulled, and thus simulates the motion resistance. Therefore, the motion resistance can be adjusted by adjusting the speed of the motor 31 and the speed reducer 32. Figure 7 As shown in the figure, the pair of flywheels 51 and 52 are provided on the torque output shaft 33 (motor side) and the transmission shaft 40 (rope wheel side), respectively, to form a double-rotor non-contact torque transmission structure. Since the torque generated by the motor 31 and the speed reducer 32 is linearly proportional to the speed thereof, as shown in the figure, the speed of the motor 31 can be adjusted to linearly adjust the size of the torque, and thus the size of the motion resistance. Figure 8

[0021] The above disclosed figures and descriptions are only the preferred embodiments of the present application, and any modification or equivalent change made by those skilled in the art within the scope of the present application should be included in the scope of the present application.​

Claims

1. A permanent magnet type resistance simulation device, characterized by comprising: It comprises: a base; a motor disposed on the base and having a torque output shaft, and being equipped with a torque data encoder and a rotational speed controller; a transmission shaft disposed on the base and being coaxial with the torque output shaft, and being equipped with a motion data encoder; a pair of flywheels coupled to the torque output shaft and the transmission shaft, and being equipped with magnets and magnetic conductive sheets; a rope winding wheel disposed on the transmission shaft and being wound with a rope, and being equipped with a one-way clutch between the rope winding wheel and the transmission shaft; a volute spring disposed on the transmission shaft; and a control system receiving torque data from the torque data encoder and motion data from the motion data encoder, and sending motor rotational speed control data to the rotational speed controller; the control system having a torque data interpreter, a motion data interpreter, a resistance demand setting unit, a torque demand calculation unit, and a target rotational speed calculation unit; the torque data interpreter receiving torque data from the torque data encoder and interpreting motor rotational direction data and motor rotational speed data; the motion data interpreter receiving motion data from the motion data encoder and interpreting transmission shaft rotational direction data, transmission shaft rotational speed data, and rope pulling length data; the torque demand calculation unit receiving motor rotational direction data and motor rotational speed data from the torque data interpreter, transmission shaft rotational speed data and rope pulling length data from the motion data interpreter, and resistance demand data from the resistance demand setting unit, and calculating torque demand data; the target rotational speed calculation unit receiving transmission shaft rotational direction data and transmission shaft rotational speed data from the motion data interpreter, and torque demand data from the torque demand calculation unit, and calculating target rotational speed data; and the rotational speed controller receiving motor rotational speed data from the torque data interpreter, and target rotational speed data from the target rotational speed calculation unit, and controlling the rotational speed of the motor. The magnets are permanent magnets, and the magnetic conductive sheets are copper sheets.

2. The permanent magnet drag analog device of claim 1, wherein, The base has a bottom plate, a torque output shaft bracket, a transmission shaft bracket, and a bracket reinforcement plate, and the motor is equipped with a speed reducer.

3. The permanent magnet drag analog device of claim 2, wherein, The transmission shaft bracket is further equipped with a rope winding wheel cover and a transmission shaft bearing seat.

4. The permanent magnet drag analog device of claim 3, wherein, The rope winding wheel cover is further equipped with a volute spring cover.

5. The permanent magnet drag analog device of claim 4, wherein, The transmission shaft bearing seat is equipped with a bearing between the transmission shaft and the transmission shaft bearing seat.

6. The permanent magnet drag analog device of claim 4, wherein, The transmission shaft is equipped with a bearing between the transmission shaft and the transmission shaft bearing seat.

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