Outer rotor servo motor structure of strength training device
By using an external rotor servo motor in the strength training device and a mechanical damping mechanism, the existing devices are solved by large size, large weight and poor follow-up, and a fast response and optimized user experience is achieved.
Patent Information
- Application Number
- CN202422280097.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing strength training devices such as rowing machines and exercise bikes use counterweights, springs, water resistance and wind resistance, resulting in large volume, heavy weight and high noise, which are not suitable for home use, and there are problems of overshoot and poor follow-up during use by the outer rotor servo motor.
The outer rotor servo motor structure is adopted, combined with the mechanical damping mechanism, and forward and reverse switching is achieved through the control of the servo motor, suppressing the moment of inertia, and improving follow-up and experience.
It realizes rapid response and forward and reverse switching, improves the follow-up and experience of the strength training device, and optimizes the use effect.
Smart Images
Figure CN223297469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of strength training devices, in particular to an outer rotor servo motor structure of a strength training device. Background Art
[0002] Most of the existing strength training devices on the market, such as rowing machines, exercise bikes, and pullers, use counterweights, springs, water resistance, wind resistance, mechanical resistance, etc. Such products are large in size, heavy, and noisy, making them unsuitable for home use. We use an outer rotor servo motor structure. By reasonably controlling the servo motor, we can achieve the effects of forward resistance and reverse pull, which can replace the existing counterweights, springs, water resistance, wind resistance, mechanical resistance, etc.
[0003] Because the outer rotor motor has a large moment of inertia, it is prone to overshoot during actual use, making smooth control impossible. It also leads to poor follow-up during strength training and a poor user experience. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an outer rotor servo motor structure for a strength training device.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an outer rotor servo motor structure of a strength training device, including a mounting bracket, the right end of the mounting bracket on the left side is fixedly connected to the servo motor, the driving end of the servo motor is fixedly connected to the drive shaft, and the right end of the drive shaft is rotatably connected to the left end of the mounting bracket on the right side.
[0006] As a further description of the above technical solution:
[0007] The outer wall of the driving shaft is fixedly connected with a winding wheel.
[0008] As a further description of the above technical solution:
[0009] The mounting bracket is fixedly connected with connecting rods on both the front and rear sides of the bottom of one opposite end.
[0010] As a further description of the above technical solution:
[0011] A plurality of mounting rods are fixedly connected to the rear side of one end of the mounting bracket, a mechanical damping mechanism is fixedly connected to the outer wall of the mounting rod, and the front end of the mechanical damping mechanism is arranged at the rear end of the servo motor.
[0012] As a further description of the above technical solution:
[0013] The mounting bracket is symmetrical about the center line of the connecting rod.
[0014] As a further description of the above technical solution:
[0015] The mounting rods are arranged up and down.
[0016] The utility model has the following beneficial effects:
[0017] In the utility model, the servo motor is first started to rotate the drive shaft, and the drive shaft rotates the winding wheel. During rotation, the mechanical damping mechanism can effectively suppress the rotational inertia generated during the rotation of the motor, thereby achieving rapid response, quickly realizing forward and reverse switching, improving followability, and optimizing the experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a top right front perspective view of an outer rotor servo motor structure of a strength training device proposed by the present invention;
[0019] Figure 2 This is a left rear top perspective view of an outer rotor servo motor structure for a strength training device proposed in the present invention;
[0020] Figure 3 This is a schematic three-dimensional diagram of the drive shaft structure of the outer rotor servo motor structure of a strength training device proposed by the present invention.
[0021] Legend:
[0022] 1. Servo motor; 2. Mechanical damping mechanism; 3. Mounting rod; 4. Mounting bracket; 5. Winding reel; 6. Connecting rod; 7. Drive shaft. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] Reference Figure 1-3 , the utility model provides an embodiment: an outer rotor servo motor structure of a strength training device, including a mounting bracket 4, characterized in that: the right end of the left mounting bracket 4 is fixedly connected to the servo motor 1, the driving end of the servo motor 1 is fixedly connected to the driving shaft 7, the right end of the driving shaft 7 is rotatably connected to the left end of the mounting bracket 4 on the right, and the outer wall of the driving shaft 7 is fixedly connected to the winding wheel 5, and the rear side of the opposite end of the mounting bracket 4 is fixedly connected to a plurality of mounting rods 3, and the outer wall of the mounting rod 3 is fixedly connected to a mechanical damping mechanism 2, and the front end of the mechanical damping mechanism 2 is arranged at the rear end of the servo motor 1. When the servo motor 1 is started, the driving shaft 7 rotates, and the driving shaft 7 rotates the winding wheel 5. During rotation, the mechanical damping mechanism 2 can effectively suppress the rotational inertia generated during the rotation of the motor, thereby achieving fast response, quickly realizing forward and reverse switching, improving followability, and optimizing the experience.
[0026] The mounting bracket 4 is fixedly connected to the front and rear sides of the bottom of one opposite end with connecting rods 6, which can reinforce the mounting bracket 4. The mounting bracket 4 is symmetrical about the center line of the connecting rod 6, and the mounting rods 3 are arranged up and down.
[0027] Working principle: First, start the servo motor 1 to rotate the drive shaft 7, and the drive shaft 7 rotates the winding wheel 5. During rotation, the mechanical damping mechanism 2 can effectively suppress the rotational inertia generated during the rotation of the motor, thereby achieving rapid response, quickly realizing forward and reverse switching, improving followability, and optimizing the experience.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A strength training device outer rotor servo motor structure, comprising a mounting bracket (4), characterized in that: The right end of the left mounting bracket (4) is fixedly connected to a servo motor (1), the driving end of the servo motor (1) is fixedly connected to a driving shaft (7), the right end of the driving shaft (7) is rotatably connected to the left end of the right mounting bracket (4), a plurality of mounting rods (3) are fixedly connected to the rear side of one opposite end of the mounting bracket (4), the outer wall of the mounting rod (3) is fixedly connected to a mechanical damping mechanism (2), and the front end of the mechanical damping mechanism (2) is arranged at the rear end of the servo motor (1).
2. The outer rotor servo motor structure of a strength training device according to claim 1, characterized in that: The outer wall of the driving shaft (7) is fixedly connected with a winding wheel (5).
3. The outer rotor servo motor structure of a strength training device according to claim 1, characterized in that: The mounting bracket (4) is fixedly connected to connecting rods (6) on both the front and rear sides of the bottom of one opposite end.
4. The outer rotor servo motor structure of a strength training device according to claim 3, characterized in that: The mounting bracket (4) is symmetrical about the center line of the connecting rod (6).
5. The outer rotor servo motor structure of a strength training device according to claim 1, characterized in that: The mounting rods (3) are arranged in an up-and-down manner.