TWI789277B - Permanent magnet resistance simulation device - Google Patents

Abstract

The present invention relates to a permanent magnet resistance simulation device, which includes: a base; a motor, which is arranged on the base and has a torque output shaft, and is equipped with a torque data encoder and a speed controller; a transmission shaft, It is arranged on the base in the same axial direction as the torque output shaft, and is equipped with a motion data encoder; a pair of flywheels are coupled to the torque output shaft and the transmission shaft, and the pair of flywheels are coupled with magnets and guides. a magnetic sheet; a rope wheel, which is arranged on the transmission shaft and is wound with a rope, and a one-way clutch is arranged between the rope winding wheel and the transmission shaft; a scroll spring, which is arranged on the transmission shaft; and a The control system receives the torque data from the torque data encoder and the motion data from the motion data encoder, and sends the motor speed control data to the speed controller; thereby, it has the effect of linearly adjusting motion resistance by adjusting the motor speed.

Description

Permanent magnet resistance simulation device

The present invention relates to a permanent magnet resistance simulation device, in particular to a designer who utilizes a double-rotor non-contact torque transmission structure to linearly simulate motor torque as movement resistance.

Press, as shown in Figure 1, the traditional muscle strength training machine 10 is to use the iron block 11 as load resistance, and allows the user to pull up the iron block 11 through the grip bar 12 and the cable 13 to shape the muscles of bodybuilding and promote physiology. Function and keep healthy; However, the traditional muscle strength training machine has the following deficiencies: 1. The iron block 11 takes up a lot of space, and adjusting the movement resistance is quite time-consuming and laborious. 2. When the iron block 11 is pulled up by the cable 13 When it is put down again, it will produce great impact noise. 3. It is impossible to set the motion curve to change the motion resistance, so that its motion function is limited.

Second press, TWM697670/US11173343 discloses a "muscle strength training machine", which combines the winding wheel on the output shaft of the reduction mechanism, so that the torque generated by the motor is directly transmitted to the winding wheel, which belongs to the design of a "contact torque transmission structure" , but this design has the following deficiencies: 1. A motor with a larger horsepower must be used to provide sufficient motion resistance, 2. Adjusting the motor speed cannot linearly adjust the motion resistance.

The main purpose of the present invention is to provide a permanent magnet resistance simulation device, which has the function of linearly adjusting motion resistance by adjusting the motor speed.

In order to achieve the above effects, the technical features of the present invention include: a base; an electric motor, which is arranged on the base and has a torque output shaft, and is equipped with a torque data encoder and a speed controller; a transmission shaft, It is arranged on the base in the same axial direction as the torque output shaft, and is equipped with a motion data encoder; a pair of flywheels are coupled to the torque output shaft and the transmission shaft, and the pair of flywheels are coupled with magnets and guides. a magnetic sheet; a rope wheel, which is arranged on the transmission shaft and is wound with a rope, and a one-way clutch is arranged between the rope winding wheel and the transmission shaft; a scroll spring, which is arranged on the transmission shaft; and a The control system receives the torque data from the torque data encoder and the motion data from the motion data encoder, and sends motor speed control data to the speed controller.

In addition, the control system has a torque data analyzer, a motion data analyzer, a resistance demand setting unit, a torque demand calculation unit and a target speed calculation unit; the torque data analyzer receives the torque data from the torque data encoder And analyze the motor steering data and motor speed data; the motion data analyzer receives the motion data of the motion data encoder to analyze the transmission shaft steering data, transmission shaft speed data and rope pull-out length data; the torque demand calculation unit receives The motor turning data and the motor speed data of the torque data analyzer, the transmission shaft speed data and the rope pulling length data of the motion data analyzer are added to the resistance demand data input by the resistance demand setting unit to calculate the torque demand data; The target rotational speed calculation unit receives the transmission shaft steering data and the transmission shaft rotational speed data from the motion data analyzer, adds the torque demand data from the torque demand calculation unit to calculate the target rotational speed data; the rotational speed controller receives the torque data analyzer The speed data of the motor is added to the target speed data of the target speed calculation unit to control the speed of the motor.

Furthermore, the magnet is a permanent magnet, and the magnetically conductive 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, and the motor is matched with a reducer. The drive shaft bracket is also provided with a sheave guard and a drive shaft bearing seat. The sheave guard is also provided with a scroll spring cover. A bearing is provided between the transmission shaft bearing seat and the transmission shaft, and a bearing is provided between the rope winding wheel and the transmission shaft.

First, please refer to Figures 2 to 6, the present invention includes: a base 20 with a bottom plate 21, a torque output shaft bracket 22, a transmission shaft bracket 23 and a bracket reinforcing plate 24; The motor 31 is equipped with a speed reducer 32, a torque data encoder 34 and a speed controller 35. The speed reducer 32 is arranged on the torque output shaft bracket 22 and has a torque output shaft 33. The motor 31 is combined with the speed reducer machine 32; a transmission shaft 40, which is arranged on the transmission shaft bracket 23 by a transmission shaft bearing seat 41 and is in the same axial direction as the torque output shaft 33, and is equipped with a motion data encoder 43, the transmission shaft bearing seat 41 A bearing 42 is provided between the transmission shaft 40; a pair of flywheels 51, 52 are coupled to 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 guide sheet 54, the magnet 53 is a permanent magnet, and the magnetically conductive sheet 54 can be a copper sheet; a roll rope wheel 60 is arranged on the transmission shaft 40 and is wound with a rope 61, and the rope roll 60 and the transmission shaft 40 A one-way clutch 62 and a bearing 63 are arranged between, and a rope reel guard 25 is provided on the transmission shaft bracket 23 relative to the rope reel 60; a scroll spring 70 is arranged on the transmission shaft 40, and Relative to the scroll spring 70, a scroll spring cover 26 is arranged on the sheave wheel cover 25; and a control system 80 receives the torque data of the torque data encoder 34 and the motion data of the motion data encoder 43 , and send the motor speed control data to the speed controller 35 .

Next, the control system 80 has a torque data analyzer 81, a motion data analyzer 82, a resistance requirement setting unit 83, a torque requirement calculation unit 84 and a target speed calculation unit 85; the torque data analyzer 81 receives the The torque data of the torque data encoder 34 is analyzed to obtain the motor steering data Dm and the motor speed data ωm; the motion data analyzer 82 receives the motion data of the motion data encoder 43 to analyze the transmission shaft steering data Du and the transmission shaft speed data ωu and rope pull-out length data Lu; the torque demand calculation unit 84 receives the motor steering data Dm and motor speed data ωm from the torque data analyzer 81, the transmission shaft speed data ωu and rope pull-out length from the motion data analyzer 82 The data Lu is added to the resistance demand data Fr input by the resistance demand setting unit 83 to calculate the torque demand data Tr; the target speed calculation unit 85 receives the transmission shaft steering data Du and transmission shaft speed data ωu from the motion data analyzer 82 , plus the torque demand data Tr of the torque demand calculation unit 84 to calculate the target speed data ωt; The rotational speed of the electric motor 31 is controlled based on the rotational speed data ωt.

Based on such a structure, the present invention utilizes the motor 31 and the speed reducer 32 to generate torque. When the rope 61 wound by the rope take-up wheel 60 on the drive shaft 40 is pulled, the torque can pass through the coupling provided with the magnet 53 and the magnetic conductor. A pair of flywheels 51,52 of the sheet 54 are transmitted to the drive shaft 40, and then simulated as motion resistance, so adjusting the rotating speed of the motor 31 and the speed reducer 32 can adjust the motion resistance; and as shown in Figure 7, a pair of flywheels 51,52 They are respectively arranged on the torque output shaft 33 (motor side) and the transmission shaft 40 (rope winding wheel side) to form a double-rotor non-contact torque transmission structure; in addition, due to the torque generated by the motor 31 and the reducer 32 and its speed will be as shown in the figure Shown in 8 is linear proportional, adjust the rotating speed of electric motor 31 and just can linearly adjust the size of torsion force, also just can linearly adjust the size of motion resistance;

To sum up, the technical means disclosed in the present invention do have the requirements of invention patents such as "novelty", "progressiveness" and "suitable for industrial use". I pray that the Jun Bureau will grant patents to encourage inventions without any obligation. sense of virtue.

However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention, and modifications or equivalent changes made by those skilled in the art according to the spirit of this case should still be included in the scope of this patent application.

10: Muscle strength training machine 11: iron block 12: Grip 13: cable 20: base 21: Bottom plate 22: Torque output shaft bracket 23: Drive shaft bracket 24: Bracket reinforcement plate 25: Rope reel guard 26: Scroll spring cover 31: Motor 32: reducer 33: Torque output shaft 34: Torque data encoder 35: Speed controller 40: drive shaft 41: Transmission shaft bearing seat 42: Bearing 43:Motion data encoder 51, 52: Flywheel 53: magnet 54: Magnetic sheet 60: Rope Roller 61:Rope 62: One-way clutch 63: Bearing 70: scroll spring 80: Control system 81: Torque data parser 82:Motion data parser 83: Resistance demand setting unit 84: Torque demand calculation unit 85: Target speed calculation unit

Fig. 1 is a perspective view of the structure of a traditional muscle strength training machine. Fig. 2 is an exploded view of the structure of the present invention. Fig. 3 is a perspective view of the structure of the present invention. Fig. 4 is a structural sectional view of the present invention. FIG. 5A is a cross-sectional view of 5A-5A in FIG. 4 . Fig. 5B is an enlarged view of the place marked 5B in Fig. 5A. Fig. 6 is a block explanatory diagram of the control system of the present invention. Fig. 7 is an exploded view of the structure of the present invention. Fig. 8 is an explanatory diagram showing that the rotational speed of the motor of the present invention is linearly proportional to the torque.

21: Bottom plate

22: Torque output shaft bracket

23: Drive shaft bracket

24: Bracket reinforcement plate

25: Rope reel guard

26: Scroll spring cover

31: Motor

32: reducer

33: Torque output shaft

34: Torque data encoder

40: drive shaft

41: Transmission shaft bearing seat

42: Bearing

43:Motion data encoder

51, 52: Flywheel

53: magnet

54: Magnetic sheet

60: Rope Roller

61:Rope

63: Bearing

70: scroll spring

Claims (7)

A permanent magnet resistance simulation device, comprising: a base; An electric motor is arranged on the base and has a torque output shaft, and is equipped with a torque data encoder and a speed controller; A transmission shaft, arranged on the base and in the same axial direction as the torque output shaft, and equipped with a motion data encoder; A pair of flywheels, coupled to the torque output shaft and the transmission shaft, and the pair of flywheels are coupled with magnets and magnetic guide sheets; a rope reel, which is arranged on the transmission shaft and is wound with a rope, and a one-way clutch is provided between the rope reel and the transmission shaft; A scroll spring is arranged on the transmission shaft; and a control system receives the torque data from the torque data encoder and the motion data from the motion data encoder, and sends the motor speed control data to the speed controller. The permanent magnet resistance simulation device as described in Claim 1, wherein the control system has a torque data analyzer, a motion data analyzer, a resistance demand setting unit, a torque demand calculation unit and a target speed calculation unit; The torque data analyzer receives the torque data from the torque data encoder to analyze the motor steering data and the motor speed data; the motion data analyzer receives the motion data from the motion data encoder to analyze the transmission shaft steering data and the transmission shaft speed Data and rope pull-out length data; the torque demand calculation unit receives the motor steering data and motor speed data from the torque data analyzer, the transmission shaft speed data and rope pull-out length data from the motion data analyzer, plus the resistance demand The torque demand data is calculated by setting the resistance demand data input by the unit; the target speed calculation unit receives the transmission shaft steering data and the transmission shaft speed data from the motion data analyzer, and adds the torque demand data of the torque demand calculation unit to calculate Target rotational speed data; the rotational speed controller receives the motor rotational speed data from the torque data analyzer, adds the target rotational speed data from the target rotational speed calculating unit to control the rotational speed of the motor. The permanent magnet resistance simulation device according to Claim 1 or 2, wherein the magnet is a permanent magnet, and the magnetically conductive sheet is a copper sheet. The permanent magnet resistance simulation device as described in claim 3, wherein the base has a bottom plate, a torque output shaft bracket, a transmission shaft bracket and a bracket reinforcing plate, and the motor is equipped with a reducer. The permanent magnet resistance simulation device as described in Claim 4, wherein, the drive shaft bracket is further provided with a sheave guard and a drive shaft bearing seat. The permanent magnet resistance simulation device as described in claim 5, wherein, the sheave cover is also provided with a scroll spring cover. The permanent magnet resistance simulation device as described in claim 5, wherein a bearing is provided between the transmission shaft bearing seat and the transmission shaft, and a bearing is provided between the rope winding wheel and the transmission shaft.

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