Treadmill drive mechanism and treadmill

Abstract

A treadmill drive and a treadmill are provided. [Solution] An encoder is provided inside and / or outside the servo motor 2 and is connected to a controller 3 via the encoder, the servo motor's transmission shaft is operably connected to a treadmill roller 1, the controller sends a control signal to the encoder to adjust the direction and range of change in the rotation angle of the servo motor, the servo motor drives the treadmill roller to vibrate horizontally when the rotation angle changes alternately in both directions, and the servo motor drives the treadmill roller to rotate in one direction when the rotation angle changes in one direction. The treadmill or running machine drives the treadmill roller based on the drive device of the treadmill to vibrate and rotate in one direction, or to vibrate horizontally during the process of rotating in one direction.

Description

[Technical Field]

[0001] FIELD OF THE INVENTION This application relates to the technical field of fitness equipment, and more particularly to treadmill drives and treadmills. [Background technology]

[0002] In recent years, as people pay more attention to healthy living and their lifestyles accelerate, home fitness equipment has gradually become a hot spot in the market. With the development of the industry, users' requirements for fitness equipment are becoming higher and higher.

[0003] Conventional treadmills usually only provide a single linear walking or running function, lacking variety and interest, making it difficult to meet the diverse exercise needs of users. Using the same exercise mode for a long time not only easily causes exercise fatigue and boredom, but may also affect fitness effects.

[0004] Therefore, in order to improve the user experience and ensure the fitness effect of the user, fitness equipment with diverse functions and high entertainment value is desired. Summary of the Invention [Problem to be solved by the invention]

[0005] To solve the above problems, the present application provides a treadmill drive device and a treadmill that can realize a variety of exercise modes and improve the user's usage experience and fitness effects. [Means for solving the problem]

[0006] In a first aspect, a drive device for a treadmill according to the present application includes: A treadmill roller (1), a servo motor (2); a controller (3), An encoder is provided inside and / or outside the servo motor (2), The encoder is connected to the controller (3), The transmission shaft of the servo motor (2) is rotatably connected to the treadmill roller (1).

[0007] In one possible embodiment, the controller (3) sends a control signal to the encoder to adjust the direction and range of change of the rotation angle of the servo motor (2); The servo motor (2) drives the treadmill roller (1) to oscillate horizontally when the rotation angle alternates between two directions; The servo motor (2) drives the treadmill roller (1) to rotate in one direction when the rotation angle changes in one direction.

[0008] In one possible embodiment, while the rotation angle of the servo motor (2) alternates between two directions, the rotor of the servo motor (2) drives the treadmill roller (1) to oscillate horizontally in the process of rotating in one direction along the first direction when the change range of the rotation angle in the first direction is greater than the change range of the rotation angle in the second direction; The frequency of the horizontal vibration corresponds to the difference between the range of change in the rotation angle in the first direction and the range of change in the rotation angle in the second direction.

[0009] In one possible embodiment, in the bidirectional alternating period of the rotor of the servo motor (2), When the rotor of the servo motor (2) changes its rotation angle by a first width along the first direction and reciprocates in the first direction and the second direction by a second width within a predetermined vibration period, the rotor drives the treadmill roller (1) to vibrate horizontally at a second frequency in the process of sweeping horizontally at the first frequency; The predetermined oscillation period is less than the bidirectional alternating period, the first width is greater than the second width, and the first frequency is less than the second frequency.

[0010] In one possible embodiment, the drive of the treadmill comprises: Further comprising a speed adjusting transmission mechanism (4), The transmission shaft of the servo motor (2) is connected to the treadmill roller (1) via a speed adjusting transmission mechanism (4).

[0011] In one possible embodiment, the controller (3) includes a communication module, The communication module is any one or a combination of a Bluetooth module, a WiFi module, an infrared receiving module, a radio frequency receiving module, and a cellular communication module.

[0012] The treadmill according to the second aspect comprises a running platform (5), a traveling deck (6) provided on the upper side of the traveling platform; a running belt (7) covering the treadmill roller (1), The treadmill according to the first aspect further includes a drive device, The treadmill roller (1) of the drive unit of the treadmill is rotatably connected to a running belt (7).

[0013] In one possible embodiment, the carriage (5) is of one-piece construction.

[0014] The technical means of the present application achieves at least the following technical effects:

[0015] The drive unit of the treadmill according to the present application is provided with an encoder inside and / or outside the servo motor, and the encoder is used to provide real-time feedback of parameters such as the angle (position), speed, and current of the motor rotor to the controller, thereby performing closed-loop control or semi-closed-loop control.

[0016] In order to more clearly explain the technical means in the embodiments of the present application, the drawings necessary for explaining the embodiments will be briefly described below. However, it is clear that the drawings in the following description are only some embodiments of the present application, and a person skilled in the art can obtain other drawings based on these drawings without any creative effort. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic perspective view of a drive unit for a treadmill according to an embodiment of the present invention; [Figure 2] 1 is a schematic perspective view of a treadmill according to an embodiment of the present invention; [Figure 3] 1 is a schematic perspective view of each member of a treadmill according to an embodiment of the present invention; [Figure 4] 1 is a schematic diagram of an integrated running platform according to an embodiment of the present application. [Figure 5] FIG. 10 is a schematic perspective view of each member of another treadmill according to an embodiment of the present application. [Figure 6] FIG. 10 is a perspective view of components of another treadmill according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0018] The above drawings have already shown clear examples of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the technical ideas of the present application in any way, but rather to explain the concept of the present application for those skilled in the art by referring to specific examples.

[0019] In order to further explain each embodiment, the present application provides drawings. These drawings are part of the contents disclosed in the present application and are intended mainly to explain the embodiments and to interpret the operating principles of the embodiments in combination with the relevant descriptions in the specification. By referring to these contents, those skilled in the art will be able to understand other possible embodiments and the advantages of the present application. The assemblies in the drawings are drawn to a different scale, and similar assembly reference numerals generally represent similar assemblies.

[0020] The present application will be further described with reference to the drawings and specific embodiments.

[0021] The treadmill drive device according to the embodiment of the present application can be used in treadmills, running machines, or fitness equipment that requires driving its transmission on a horizontal surface. Figure 1 shows the treadmill drive device according to the embodiment of the present application. As shown in Figure 1, the treadmill drive device includes a treadmill roller 1, a servo motor 2, and a controller 3.

[0022] In the present embodiment, the drive device of the treadmill includes a treadmill roller 1 , a servo motor 2 and a controller 3 .

[0023] The servo motor 2 is provided with an internal and / or external encoder and is connected to the controller 3 via the encoder, and the transmission shaft of the servo motor 2 is rotatably connected to the treadmill roller 1. For example, the encoder attached to the servo motor 2 can be used to feed back parameters such as the angle (position), speed, and current of the motor rotor to the controller 3 in real time to perform closed-loop control or semi-closed-loop control. Furthermore, an external encoder attached to the servo motor 2 can be used to achieve the above function. Furthermore, to accommodate a multi-motor scene or measurement of additional parameters such as torque and vibration, the internal encoder of the servo motor 2 can be used to collect the above parameters, and an external encoder can be used to receive and transmit data.

[0024] For example, if a treadmill is designed based on the rated voltage of 110V in the Americas, then if the rated voltage is 110V, the motor's operating current is 5.5 to 6A and the operating frequency is 60Hz.

[0025] The overall dimensions of the running platform may be the same as those of a standard running platform, or, depending on the demand for a smaller treadmill, a running platform smaller than the standard dimensions may be selected to meet the dimensional requirements of the treadmill.

[0026] In this embodiment, the controller 3 realizes electrical control of the entire device. Specifically, the controller 3 sends a control signal to the encoder to adjust the direction and range of change in the rotation angle of the servo motor 2. The direction of change indicates whether the rotation angle is forward or reverse and determines the direction of the output torque of the servo motor, while the range of change indicates the rate of change in the rotation angle and determines the rotation speed of the output of the servo motor.

[0027] In the embodiment of the present application, various drive modes can be realized by performing bidirectional alternating changes and unidirectional changes to the rotation angle of the servo motor 2. A description will now be given of the various drive modes.

[0028] Drive mode A, horizontal vibration Specifically, when the rotation angle of the servo motor 2 alternates between two directions, it drives the treadmill roller 1 to vibrate horizontally. The bidirectional alternating rotation of the servo motor 2 refers to rotating the rotation angle forward at a certain angle and then reversed at a certain angle to achieve a motion trajectory of reciprocating rotation in two opposing directions, and when the forward and reverse rotation speeds reach a certain value, the treadmill roller 1 is driven to achieve a horizontal vibration effect. In terms of user experience, the horizontal vibration can achieve the sensation of a vibration massage, so that the driven fitness equipment (e.g., treadmills and running machines) can achieve a massage effect while providing basic functions.

[0029] For example, consider a treadmill using 110V AC and 60Hz AC. In horizontal vibration mode, the controller inputs frequency F1 to the motor, causing the motor to rotate forward one revolution at speed X1 and then reverse one revolution, moving the belt forward a distance S1 and then backward a distance S1. Similarly, for second-speed vibration, the controller inputs frequency F2 to the motor, causing the motor to rotate forward one revolution at speed X2 and then reverse one revolution. The higher the frequency, the faster the motor's rotation speed, i.e., the more back-and-forth movements occur in the same time period. For example, if F1 is smaller than F2 and X1 is smaller than X2, the vibration frequency of second-speed vibration is higher, resulting in a stronger vibration for the user standing on the treadmill.

[0030] In one possible embodiment, the driving mode A may be further expanded to multiple modes in combination with horizontal vibration.

[0031] A1, constant speed walking / running mode with horizontal vibration effect Specifically, while the rotation angle of the servo motor 2 alternates between two directions, if the change in the rotation angle in the first direction is greater than the change in the rotation angle in the second direction, the rotor of the servo motor 2 drives the treadmill roller 1 to vibrate horizontally while rotating unidirectionally along the first direction. This process can be considered to achieve a vibration effect by periodically turning in the second direction at a constant width while rotating mainly in the first direction.

[0032] The frequency of the horizontal vibration corresponds to the difference between the range of change in the rotation angle in the first direction and the range of change in the rotation angle in the second direction.

[0033] A2, reciprocating sweep mode with horizontal vibration effect (combining sweep and vibration) Specifically, in the bidirectional alternating period of the rotor of the servo motor 2, When the rotor of the servo motor 2 changes its rotation angle by a first width along the first direction and then changes back and forth between the first and second directions by a second width within a predetermined vibration period, the rotor drives the treadmill roller 1 to oscillate horizontally at a second frequency during the process of sweeping horizontally at the first frequency. This process can be considered as maintaining the effect of constantly oscillating back and forth at a small width during the process of horizontally circulating back and forth at a large width.

[0034] The predetermined oscillation period is less than the bidirectional alternating period, the first width is greater than the second width, and the first frequency is less than the second frequency.

[0035] For example, if the treadmill uses 110V AC and 60Hz AC, the "sweep and vibration combined" mode can be achieved by rotating forward 2-6 times, moving forward 40-60mm, then rotating backward 1-5 times, and moving backward 30-40mm, in which case the belt will move forward 10-20mm. The vibration effect can be achieved by periodically rotating forward and backward in this process.

[0036] For example, first, the belt rotates forward 1 to 8 times, moves forward 10 to 20 mm, then rotates backward 1 to 8 times, moves backward 10 to 20 mm, then rotates forward 1 to 8 times, and moves forward 10 to 20 mm. If this is one cycle, the running belt moves forward 10 to 20 mm in each vibration cycle, and the vibration effect is maintained by the cyclical rotations in the forward and reverse directions in this one cycle.

[0037] Drive mode B, unidirectional rotation Specifically, when the rotation angle changes in one direction, the servo motor 2 drives the treadmill roller 1 to rotate in one direction. This mode includes a walking function and a running function based on low speed and / or variable speed. The drive device of the treadmill according to the present application may drive the treadmill roller to rotate in either a forward or reverse direction.

[0038] In one possible embodiment, the treadmill drive device further includes a speed adjusting transmission mechanism. The torque output from the transmission shaft of the servo motor 2 is adjusted by the speed adjusting transmission mechanism before being input to the treadmill roller 1. The speed adjusting transmission mechanism may be, for example, a reducer, a pulley and belt, a sprocket and chain, etc.

[0039] Specifically, the combined structure of the pulley and belt is relatively simple, making installation and maintenance easy. Belt transmission provides shock absorption and vibration absorption, further reducing shock and vibration during the transmission process. In addition, by adjusting the diameter ratio of the pulleys, the transmission ratio can be easily changed, thereby adjusting the output torque of the servo motor.

[0040] In one possible embodiment, the controller 3 includes a communication module, which receives the trigger command and transmits a control signal to the encoder based on the trigger command.

[0041] Preferably, the communication module is any one or more of a Bluetooth module, a WiFi module, an infrared receiving module, a radio frequency receiving module, and a cellular communication module.

[0042] For example, if the communication module is an infrared receiving module, it is possible to control the controller 3 with a remote controller to switch between different driving modes, thereby providing users with different exercise modes. For example, if the communication module is a Bluetooth module or a WiFi module, it is possible to control the controller 3 with a terminal device such as a mobile phone, a smart watch, or a computer to switch between different driving modes, thereby providing users with different exercise modes.

[0043] The treadmill drive device of the present application utilizes horizontal rhythmic motion, which is beneficial for physiological health, to provide a variety of exercise modes, improving the user's experience and fitness. It also provides multiple interactive modes to control the drive mode of the device, making it easier for users to use. Horizontal rhythmic motion can promote blood circulation and help prevent cardiovascular disease.

[0044] An embodiment of the present application provides a treadmill. FIG. 2 is a perspective view of the treadmill according to the embodiment of the present application, showing the overall external structure of the treadmill. FIG. 3 is a schematic perspective view of each component of the treadmill according to the embodiment of the present application. As shown in FIG. 3, the treadmill includes a running platform 5, a running deck 6 provided above the running platform, a running belt 7 covering a treadmill roller 1, and a treadmill drive device. The device includes a treadmill roller 1, a servo motor 2, and a controller 3. The treadmill roller 1 drives the running belt 7 to oscillate and rotate in one direction, or to oscillate horizontally during the unidirectional rotation process.

[0045] In the embodiment of the present application, the treadmill includes a running base 5, a running deck 6 provided on the upper side of the running base, a running belt 7 covering the treadmill roller 1, and the above-mentioned treadmill drive device. The treadmill roller 1 of the device drives the running belt 7 to oscillate and rotate in one direction, or to oscillate horizontally during the process of rotating in one direction.

[0046] Preferably, the running platform 5 is manufactured by integral molding. An integrally molded running platform is more cost-effective, has high assembly efficiency, is easier to maintain, and has a low failure rate. Furthermore, the weight of the running platform can be reduced by using engineering plastics (e.g., polycarbonate, nylon, ABS, etc.) or carbon fiber composite materials as the material for the running platform. More specifically, the composite material may be a material formed by compounding polypropylene (PP) with 10 to 30% glass fiber (GF), that is, 10 to 30% (e.g., 10%, 15, 20%, 25%, or 30%) of glass fiber (GF) is added to the polypropylene (PP) material to perform modification and reinforcement.

[0047] The frames of conventional treadmills are basically made up of steel frames, bottom frames, etc., which are usually heavier and require a larger space to use, which is undoubtedly a burden for homes with limited living space.However, the treadmill of this application is lighter, smaller, easier to store, and more suitable for home use.

[0048] FIG. 4 is a schematic diagram of an integrated running platform according to an embodiment of the present application. As shown in FIG. 4, FIG. 4(a) shows the shape and structure of the running platform 5 at the bottom of the treadmill from a perspective angle, and FIG. 4(b) shows the three-dimensional structure of the running platform 5 of the treadmill when disassembled independently from a bottom-up observation angle.

[0049] Preferably, the servo motor 2 of the treadmill drive device according to the present application is compact and can be flexibly installed inside the running platform 5, eliminating the need for additional storage space for the motor and effectively saving space. For example, the servo motor 2 is installed inside one side of the running platform 5, and the controller 3 is installed inside the other side of the running platform 5. Alternatively, the servo motor 2 and the pulley connected thereto may be disposed inside the left side of the running platform 5, and the controller 3 may be disposed inside the right side of the running platform 5. Naturally, taking into consideration aspects such as balance of weight, aesthetics, and functional connections, the components of the treadmill drive device may be distributed or centrally arranged at any desired position inside the running platform 5, and the present application does not limit this.

[0050] FIG. 5 is a schematic perspective view of each component of another treadmill according to an embodiment of the present invention, and various preferred components of the treadmill in various possible embodiments will be described below with reference to FIG.

[0051] In one possible embodiment, the treadmill roller 1 includes a front roller 1a and a rear roller 1b, both of which are provided with protective caps 8 on the outside of their mounting points on the running platform 5 at both ends of the front roller 1a and the rear roller 1b.

[0052] In one possible embodiment, the treadmill roller 1 is provided with a strainer 101 that adjusts the tension of the running belt 7 that covers the treadmill roller. Preferably, the strainer 101 is an adjustment bolt, and one adjustment bolt is provided on each end of the treadmill roller (1a and 1b). The adjustment bolts of the treadmill rollers (1a and 1b) rotate to drive the rollers to move back and forth, thereby adjusting the tension of the running belt 7, thereby maintaining stable operation of the running belt 7 and reducing slippage and wear.

[0053] In one possible embodiment, the treadmill further comprises at least one of a stiffening plate, a dust cap, and a pad.

[0054] At least one reinforcing plate 9 is provided between the running platform 5 and the running deck 6, and the reinforcing plate 9 is used for support and vibration damping.

[0055] The servo motor 2 of the drive unit of the treadmill is provided with a dust cap 201.

[0056] At least one pad 10 is provided under the running platform 5, and the pad 10 is used for anti-slip and sound insulation.

[0057] FIG. 6 is a perspective view of the components of a treadmill according to an embodiment of the present application. As shown in FIG. 6, taking the front roller 1a as an example, protective caps 8 are attached to both ends of the front roller 1a. The front roller 1a further has an adjustment bolt 101 inside the protective cap 8. A controller 3 is provided on one side, and a servo motor 2 and a pulley 4 are provided on the other side. A running deck 6 is provided inside the running belt 7, and multiple reinforcing plates 9 are provided below the running deck 6. A pad 10 is provided below the running belt 7. A remote controller 11 can send commands to the controller 3 to control the mode of the treadmill.

[0058] The treadmill of the present invention utilizes physiological health horizontal rhythm to realize diverse and rich exercise modes, improving the user's usage experience and fitness effects. It also provides multiple interactive modes to control the treadmill's driving mode, making it easier for users to use. The use of a one-piece molded running platform improves assembly efficiency and reduces costs, making the treadmill lighter and more compact, making it suitable for home use. The servo motor is installed on the inner edge of the treadmill's running platform, saving space and improving aesthetics.

[0059] Unless otherwise specified, technical or scientific terms used herein shall have the meaning commonly understood by those skilled in the art. The terms "first," "second," "third," and similar terms used in the present specification and claims do not denote any order, quantity, or importance, but rather are used to distinguish between different components. Similarly, similar terms such as "one" or "one" do not denote a limitation of number, but rather indicate the presence of at least one. Similar terms such as "comprise" or "including" are intended to cover the element or component appearing after "comprise" or "include," and equivalents thereof, without excluding other elements or components. Similar terms such as "connect" or "couple" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are merely used to denote relative positions, and a change in the absolute position of the described object may result in a corresponding change in the relative positions.

[0060] Any modifications, equivalent replacements, improvements, etc. made within the principles should fall within the scope of protection of the present application. Although the present application has been described in detail and introduced in combination with preferred embodiments, it is obvious to those skilled in the art that various modifications to the present application in form and detail fall within the scope of protection of the present application, as long as they do not deviate from the spirit and scope of the present application as defined by the appended claims. [Explanation of symbols]

[0061] 1 treadmill roller 1a Front roller 1b Rear roller 2 servo motors 201 Dustproof cap 3 Controller 4 Speed-adjusting transmission mechanism 5 Running platform 6 Traveling deck 7 Running belt 8 Protective cap 9 Reinforcement plate 10 pads 11 Remote Controller

Claims

1. A treadmill roller (1); A servo motor (2); A controller (3), An encoder is provided inside and / or outside the servo motor (2); The encoder is connected to the controller (3); A drive device for a treadmill, characterized in that the transmission shaft of the servo motor (2) is connected to the treadmill roller (1) in a manner that allows transmission of power.

2. The controller (3) transmits a control signal to the encoder to adjust the direction and range of change of the rotation angle of the servo motor (2); The servo motor (2) drives the treadmill roller (1) to oscillate horizontally when the rotation angle alternates between two directions; 2. The treadmill drive device according to claim 1, wherein the servo motor (2) drives the treadmill roller (1) to rotate in one direction when the rotation angle changes in one direction.

3. While the rotation angle of the servo motor (2) changes alternately in both directions, a rotor of the servo motor (2) drives the treadmill roller (1) to horizontally vibrate in a process of rotating in one direction along the first direction when a change range of a rotation angle in the first direction is greater than a change range of a rotation angle in the second direction; 3. The driving device for a treadmill according to claim 2, wherein a frequency of the horizontal vibration corresponds to a difference between a range of change in the rotation angle in the first direction and a range of change in the rotation angle in the second direction.

4. In the bidirectional alternating period of the rotor of the servo motor (2), When the rotor of the servo motor (2) reciprocates in the first direction and the second direction by a second width within a predetermined vibration period in a process of changing the rotation angle by a first width along the first direction, the rotor drives the treadmill roller (1) to vibrate horizontally at a second frequency in a process of sweeping horizontally at a first frequency, the predetermined oscillation period is smaller than the bidirectional alternating period; The first width is greater than the second width, 3. The drive device for a treadmill according to claim 2, wherein said first frequency is lower than said second frequency.

5. Further comprising a speed adjusting transmission mechanism (4), 2. A treadmill drive device according to claim 1, wherein the transmission shaft of the servo motor (2) is connected to the treadmill roller (1) via the speed adjusting transmission mechanism (4).

6. The controller (3) includes a communication module; The treadmill driving device of claim 1, wherein the communication module is one or a combination of a Bluetooth (registered trademark) module, a WiFi module, an infrared receiving module, a radio frequency receiving module, and a cellular communication module.

7. A running platform (5); A traveling deck (6) provided on the upper side of the traveling platform; A treadmill including a running belt (7) that covers the treadmill roller (1), A treadmill drive according to any one of claims 1 to 6, A treadmill roller (1) of a drive unit of the treadmill is rotatably connected to the running belt (7).

8. 8. A treadmill according to claim 7, characterized in that the running platform (5) is of one-piece construction.

Images