Treadmill transmission system with built-in motor

Abstract

The utility model belongs to the technical field of treadmills, and particularly relates to a treadmill transmission system with a built-in motor. The utility model provides a running machine transmission system with a built-in motor. The running machine transmission system aims at solving the problem that in the prior art, a running machine is large in occupied space. A running machine transmission system with a built-in motor comprises a rack and a runway arranged on the rack. The rack is further provided with a roller set for driving the runway to rotate, the roller set comprises a driving roller and a driven roller, and the runway is arranged on the driving roller and the driven roller in a sleeving mode; according to the treadmill, the driving roller is arranged to be the hollow roller body, the motor for driving the roller body to rotate is arranged in the roller body, the motor is directly arranged in the roller body, the motor does not need to be arranged outside the roller body, and therefore the treadmill is small in occupied space, the motor is arranged in the roller body, external dust is not prone to entering the motor, the motor is not prone to being damaged, and the running efficiency is improved. And the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of treadmills, and in particular relates to a treadmill transmission system with a built-in motor. Background Art

[0002] Treadmills are fitness equipment commonly used in homes and gyms, and are the best choice for home fitness equipment. Treadmills are equipped with a running track and a motor, and the motor drives the running track to rotate through a rotating shaft. In the prior art, the motor of a treadmill is arranged outside the rotating shaft, and the motor is generally arranged at one end of the rotating shaft, and is connected to the rotating shaft directly or through a gearbox.

[0003] This arrangement of the motor causes the treadmill to occupy a large space, and because the motor is arranged at one end of the shaft, the shaft is subjected to uneven force, which can easily cause the shaft to deform during long-term use. Utility Model Content

[0004] The utility model provides a treadmill transmission system with a built-in motor, aiming to solve the problem that the treadmill in the prior art occupies a large space.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A motor-built-in treadmill transmission system comprises a frame and a runway arranged on the frame;

[0007] The frame is also provided with a roller group for driving the runway to rotate, the roller group includes a driving roller and a driven roller, the runway is sleeved on the driving roller and the driven roller, and the driving roller and the driven roller are both rotatably connected to the frame;

[0008] The active roller comprises a hollow roller body, and a motor for driving the roller body to rotate is arranged in the roller body.

[0009] A further improved solution: the active roller is rotatably connected to the frame via a motor, and the motor is located in the middle of the roller body in the length direction.

[0010] Based on the above technical solution: the active roller is connected to the frame through the rotation of the motor, and no other connection structure is required between the active roller and the frame, which simplifies the structure of the treadmill. The motor is located in the middle of the roller body in the length direction, and the two ends of the roller body are evenly stressed, so the roller body is not easy to deform during long-term use.

[0011] A further improved solution: the motor comprises a stator coaxially arranged with the roller body and a rotor coaxially arranged with the stator, the stator is fixed on the frame, and the rotor is fixed on the roller body.

[0012] Based on the above technical solution: the motor includes a stator coaxially arranged with the roller body and a rotor coaxially arranged with the stator, the stator is fixed on the frame, and the rotor is fixed on the roller body. The rotor of the motor directly drives the roller body, and there is no need to set up other transmission mechanisms, which further simplifies the structure of the treadmill.

[0013] A further improved solution: the stator is provided with a mounting shaft, the frame is provided with a mounting seat for fixing the mounting shaft, and the cross-section of the mounting shaft is a polygon.

[0014] Based on the above technical solution: the cross-sectional shape of the installation shaft is a polygon, the installation shaft has a high bending strength, and the installation shaft is not easy to bend during long-term use.

[0015] A further improved solution: the mounting base is fixed to the frame by screws; or the mounting base is welded to the frame.

[0016] Based on the above technical solution: the mounting base is fixed to the frame by screws, or the mounting base is welded to the frame, and there are multiple connection modes between the mounting base and the frame to choose from, and the mounting base and the frame are easy to assemble.

[0017] A further improved solution: the mounting seat comprises an upper seat body and a lower seat body, the upper seat body is fixed to the lower seat body by screws, and both the upper seat body and the lower seat body are provided with mounting grooves for mounting the mounting shaft.

[0018] Based on the above technical solution: the mounting base includes an upper base and a lower base, the upper base is fixed to the lower base by screws, and when the roller body needs to be removed, only the upper base needs to be removed to remove the roller body, thereby making the treadmill easy to maintain.

[0019] A further improved solution: both ends of the mounting shaft extend out of the roller body, and both ends of the roller body on the frame are provided with mounting seats.

[0020] Based on the above technical solution: both ends of the installation shaft extend out of the roller body, the frame is provided with mounting seats at both ends of the roller body, both ends of the roller body are supported by the installation shaft, and the connection strength between the roller body and the frame is high.

[0021] A further improved solution: both ends of the roller body are provided with end covers to prevent dust from entering the roller body, the end covers are fixed to the roller body by threads, and the end covers are provided with through holes for the installation shaft to pass through.

[0022] Based on the above technical solution: both ends of the roller body are provided with end covers, which can prevent dust from entering the roller body, making it difficult for dust to enter the stator and the rotor.

[0023] A further improved solution: a sealing ring is provided between the end cover and the roller body, and a sealing ring is provided between the mounting shaft and the through hole.

[0024] Based on the above technical solution: a sealing ring is arranged between the end cover and the roller body, and a sealing ring is arranged between the mounting shaft and the through hole. The sealing ring makes it difficult for dust to enter the roller body, and further makes it difficult for dust to enter the stator and rotor.

[0025] A further improved solution: a rolling bearing is provided between the driven roller and the frame.

[0026] Based on the above technical solution: a rolling bearing is arranged between the driven roller and the frame, the driven roller and the frame are not in direct contact, and the driven roller and the frame are not easy to wear.

[0027] The beneficial effects of the utility model are:

[0028] The utility model sets the active roller as a hollow roller body, and sets a motor for driving the roller body to rotate in the roller body. The motor is directly set in the roller body and does not need to be set outside the roller body, so that the treadmill occupies a small space. In addition, the motor is set in the roller body, and external dust is not easy to enter the motor, the motor is not easy to be damaged, and the service life of the motor is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technical users in this field, other relevant drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 The utility model is a top view of a transmission system of a treadmill with a built-in motor.

[0031] Figure 2 The utility model is a schematic diagram of a transmission system of a treadmill with a built-in motor.

[0032] Figure 3 The utility model is a schematic diagram of the internal structure of a transmission system of a treadmill with a built-in motor.

[0033] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0034] Description of the numbers in the figure:

[0035] 1-frame; 2-runway; 3-driving roller; 31-end cover; 4-driven roller; 5-motor; 51-stator; 52-rotor; 53-mounting shaft; 6-mounting seat; 61-screw. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments of the utility model, all other embodiments obtained by users of the technology in this field without creative work belong to the protection scope of the utility model.

[0037] refer to Figures 1 to 4 , a treadmill transmission system with a motor 5 built in, comprising a frame 1 and a runway 2 arranged on the frame 1;

[0038] The frame 1 is also provided with a roller group for driving the runway 2 to rotate, the roller group includes an active roller 3 and a driven roller 4, the runway 2 is sleeved on the active roller 3 and the driven roller 4, and the active roller 3 and the driven roller 4 are both rotatably connected to the frame 1;

[0039] The active roller 3 includes a hollow roller body, and a motor 5 for driving the roller body to rotate is disposed in the roller body.

[0040] When adjusting the speed of the runway 2 , the speed of the runway 2 can be changed by adjusting the rotation speed of the motor 5 .

[0041] The runway 2 is formed by a running belt, and the active roller 3 drives the running belt to rotate to realize the function of a treadmill. The driven roller 4 is used to correct the running belt so that the running belt can rotate normally.

[0042] Specifically: the active roller 3 is rotatably connected to the frame 1 via a motor 5, and the motor 5 is located in the middle of the length direction of the roller body.

[0043] The motor 5 may include a mounting shaft 53 , which extends out of the roller body and is fixedly connected to the frame 1 .

[0044] The length of the motor 5 can also be equal to the length of the roller body so that the roller body is subjected to more uniform force. When the length of the motor 5 is longer, the manufacturing cost of the motor 5 will increase. Therefore, the motor 5 is arranged in the middle of the roller body. When the motor 5 drives the roller body to rotate, the two ends of the roller body are subjected to uniform force, which can prevent the roller body from deforming.

[0045] refer to Figure 3 to Figure 4Specifically, the motor 5 includes a stator 51 coaxially arranged with the roller body and a rotor 52 coaxially arranged with the stator 51 , the stator 51 is fixed on the frame 1 , and the rotor 52 is fixed on the roller body.

[0046] The stator 51 is provided with a mounting shaft 53, and the frame 1 is provided with a mounting seat 6 for fixing the mounting shaft 53. The cross-sectional shape of the mounting shaft 53 is a polygon. Since the mounting shaft 53 has a long length, by setting the cross-sectional shape of the mounting shaft 53 to be a polygon, the mounting shaft 53 has a higher bending strength, thereby preventing the mounting shaft 53 from bending.

[0047] Wherein: the mounting base 6 is fixed to the frame 1 by screws 61 ; or, the mounting base 6 is welded to the frame 1 .

[0048] refer to Figure 1 to Figure 2 The mounting seat 6 includes an upper seat body and a lower seat body, the upper seat body is fixed to the lower seat body by screws 61, and both the upper seat body and the lower seat body are provided with mounting grooves for mounting the mounting shaft 53. During long-term use, the roller body may need to be removed for maintenance. Therefore, the mounting seat 6 adopts a split structure, and the roller body can be removed for maintenance by only removing the upper seat body, making the roller body easy to maintain. The lower seat body can be an integrated structure with the frame 1.

[0049] Specifically: both ends of the installation shaft 53 extend out of the roller body, and both ends of the roller body on the frame 1 are provided with the installation seats 6 .

[0050] Specifically: both ends of the roller body are provided with end covers 31 to prevent dust from entering the roller body, the end covers 31 are fixed to the roller body by threads, and the end covers 31 are provided with through holes for the installation shaft 53 to pass through.

[0051] A sealing ring is provided between the end cover 31 and the roller body, and a sealing ring is provided between the mounting shaft 53 and the through hole.

[0052] The sealing ring can be a rubber sealing ring.

[0053] Wherein: a rolling bearing is arranged between the driven roller 4 and the frame 1. A bearing seat can be arranged on the frame 1, the outer ring of the rolling bearing is installed in the bearing seat, and the inner ring of the rolling bearing is installed on the driven roller 4.

[0054] The working principle of this embodiment:

[0055] The roller body is a hollow structure with a certain space inside. Therefore, the motor 5 can be installed inside the roller body without being required to be arranged outside the roller body. As a result, no space for installing the motor 5 is required on the frame 1, thereby reducing the footprint of the treadmill.

[0056] Furthermore, the motor 5 is installed inside the roller body, and external dust is not easy to enter the motor 5, thereby extending the service life of the motor 5.

[0057] The present utility model is not limited to the above optional implementation modes. Under the premise of not conflicting with each other, the various schemes can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present utility model. However, no matter what changes are made in their shapes or structures, all technical schemes that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A treadmill transmission system with a built-in motor, characterized in that: It comprises a frame and a runway arranged on the frame; The frame is also provided with a roller group for driving the runway to rotate, the roller group includes a driving roller and a driven roller, the runway is sleeved on the driving roller and the driven roller, and the driving roller and the driven roller are both rotatably connected to the frame; The active roller comprises a hollow roller body, and a motor for driving the roller body to rotate is arranged in the roller body.

2. The transmission system of a treadmill with a built-in motor according to claim 1, characterized in that: The active roller is rotatably connected to the frame via a motor, and the motor is located in the middle of the roller body in the length direction.

3. The transmission system of a treadmill with a built-in motor according to claim 2, characterized in that: The motor comprises a stator coaxially arranged with the roller body and a rotor coaxially arranged with the stator, the stator is fixed on the frame, and the rotor is fixed on the roller body.

4. The transmission system of a treadmill with a built-in motor according to claim 3, characterized in that: The stator is provided with a mounting shaft, the frame is provided with a mounting seat for fixing the mounting shaft, and the cross-section of the mounting shaft is a polygon.

5. The transmission system of a treadmill with a built-in motor according to claim 4, characterized in that: The mounting base is fixed to the frame by screws; or, the mounting base is welded to the frame.

6. The transmission system of a treadmill with a built-in motor according to claim 5, characterized in that: The mounting seat comprises an upper seat body and a lower seat body, wherein the upper seat body is fixed to the lower seat body by screws, and both the upper seat body and the lower seat body are provided with mounting grooves for mounting the mounting shaft.

7. The transmission system of a treadmill with a built-in motor according to claim 4, characterized in that: The roller body is extended from both ends of the mounting shaft, and the mounting seats are arranged on both ends of the roller body on the frame.

8. The transmission system of a treadmill with a built-in motor according to claim 4, characterized in that: Both ends of the roller body are provided with end covers to prevent dust from entering the roller body. The end covers are fixed to the roller body through threads, and the end covers are provided with through holes for the installation shaft to pass through.

9. The transmission system of a treadmill with a built-in motor according to claim 8, characterized in that: A sealing ring is arranged between the end cover and the roller body, and a sealing ring is arranged between the mounting shaft and the through hole.

10. The transmission system of a treadmill with a built-in motor according to claim 1, characterized in that: A rolling bearing is arranged between the driven roller and the frame.

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