Outward rotation brushless motor transmission structure of walking and running machine

Abstract

The utility model relates to the technical field of fitness equipment, and particularly discloses an external rotation brushless motor transmission structure of a walking and running machine, which comprises a frame, a driving piece arranged on the frame and a speed reduction module matched with the driving piece for use, the driving piece is used for driving an external walking belt to rotate; the speed reduction module comprises a first wheel body rotationally arranged relative to the frame and a second wheel body arranged at the output end of the driving part, the diameter of the second wheel body is smaller than that of the first wheel body, the second wheel body drives the walking belt to rotate through the first wheel body, and the first wheel body is sleeved with a transmission belt; the ends, away from the first wheel body, of the transmission belts are arranged on the first wheel body, the two transmission belts are arranged, and heat dissipation holes are formed in the transmission belts, so that the temperature of the transmission belts and surrounding components is effectively reduced, normal operation of the system is guaranteed, and the stability and the service life of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, and in particular discloses an outward-rotating brushless motor transmission structure for a treadmill. Background Art

[0002] With economic development and rising living standards, people are increasingly focusing on their own health and exercise, leading to an increasing popularity of fitness equipment on the market, such as treadmills. However, due to the fatigue of running, many people cannot stick to regular jogging, especially those who are not suitable for strenuous exercise. Treadmills do not provide them with a good exercise opportunity. To address this problem, walking machines that allow people to walk have gradually appeared on the market. Compared with treadmills, walking machines do not have special requirements for the user group and are more relaxed for users. Therefore, they are attracting more and more attention and purchases from consumers. However, existing walking machines have poor heat dissipation effects and their internal components are prone to aging. Therefore, there is an urgent need for a treadmill with an external brushless motor transmission structure. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the present invention aims to provide a transmission structure for an outward-rotating brushless motor of a treadmill.

[0004] To achieve the above-mentioned purpose, the utility model provides an external rotation brushless motor transmission structure of a treadmill, including a frame, a driving member mounted on the frame and a deceleration module used in conjunction with the driving member; the driving member is used to drive the external walking belt to rotate; the deceleration module includes a first wheel body rotatably arranged relative to the frame and a second wheel body arranged at the output end of the driving member, the diameter of the second wheel body is smaller than the diameter of the first wheel body, the second wheel body drives the walking belt to rotate via the first wheel body, a transmission belt is sleeved on the first wheel body, the end of the transmission belt away from the first wheel body is arranged on the first wheel body, two transmission belts are provided / the transmission belt is provided with heat dissipation holes.

[0005] Preferably, the walking belt is arranged on the frame.

[0006] Preferably, the two transmission belts are arranged in parallel, with a gap formed between them. This gap facilitates air circulation, further enhancing the heat dissipation performance of the transmission structure. When the motor and transmission system operate at high speeds, the heat generated can be quickly dissipated through these gaps, reducing the temperature of the transmission belts and surrounding components and ensuring stable system operation. The parallel arrangement of the two transmission belts facilitates installation, and the gap can be adjusted as needed. Furthermore, during maintenance, the transmission belts can be inspected and replaced more easily, reducing maintenance difficulty and cost. The parallel arrangement of the two transmission belts can be adapted to different load requirements by adjusting the gap and tension, ensuring that the transmission system always maintains optimal working condition.

[0007] Preferably, the driving member is an external rotating motor, which includes a stator part and a rotor part. The rotor part is provided with a fan for cooling the transmission belt. Directly cooling the transmission belt by the fan can effectively reduce the heat generated by friction and tension of the transmission belt during operation, reduce the damage to the transmission belt material caused by thermal stress, and thus extend the service life of the transmission belt. The transmission belt is prone to expansion, deformation or wear at high temperatures, which in turn affects the stability and accuracy of the entire transmission system. The cooling effect of the fan can keep the transmission belt working at a lower and stable temperature, thereby improving the stability and reliability of the entire transmission system. The fan is directly set on the rotor part, and the air flow effect generated when the motor rotates can be utilized to improve the air supply efficiency and heat dissipation effect of the fan. This design not only reduces additional energy consumption and noise, but also makes the heat dissipation system more compact and efficient. Since the energy consumption of the fan is relatively low, the energy utilization efficiency of the entire transmission system is improved.

[0008] Preferably, the frame includes a first frame, a second frame and a first plate arranged on the first frame and the second frame. The first frame, the second frame and the first plate are split, and the first plate is used to provide support for the side of the walking belt. The split design allows the first frame, the second frame and the first plate to be disassembled and installed separately. When a component fails or requires maintenance, there is no need to disassemble the entire frame, which greatly simplifies the maintenance process and improves maintenance efficiency. At the same time, the split components are relatively small in size, which is convenient for packaging, transportation and storage, reducing logistics costs and storage space requirements. The material of the first plate is stainless steel, aluminum alloy, carbon steel plate or composite material.

[0009] Preferably, the frame further comprises a first roller and a second roller rotatably mounted on the first frame and / or the second frame. The first roller and the second roller are respectively located at both ends of the walking belt to drive the rotation of the walking belt. The first roller and the second roller are respectively located at both ends of the walking belt. Through their rotation, the walking belt can be stably driven to perform a circular motion. This design ensures the stability and continuity of the walking belt during operation, improving the user's exercise experience. In addition to driving the walking belt to rotate, the first roller and the second roller also play a supporting and guiding role. They can ensure that the walking belt runs on a specified path, prevent it from deflecting or twisting, and thus extend the service life of the walking belt.

[0010] Preferably, a fourth wheel body protrudes from the first wheel body, and the diameter of the fourth wheel body is smaller than the diameter of the first wheel body. A third wheel body is arranged on the second roller body, and the axis of the third wheel body is parallel to the axis of the fourth wheel body. The third wheel body is connected to the fourth wheel body via a transmission belt, and the diameter of the third wheel body is larger than the diameter of the fourth wheel body. Since the diameter of the fourth wheel body is smaller than that of the first wheel body (in other embodiments, the diameter of the fourth wheel body is also smaller than the second wheel body to which the fourth wheel body is connected), and the diameter of the third wheel body is larger than that of the fourth wheel body, this design makes it possible that when the first wheel body rotates, the rotation speed transmitted to the third wheel body through the transmission belt will change. Specifically, due to the difference in diameter, the rotation speed of the fourth wheel body will be higher than the rotation speed of the third wheel body, but the torque transmitted to the third wheel body will increase accordingly, which helps to reduce energy loss and frictional heat.

[0011] Preferably, the first wheel body and the fourth wheel body are provided with a first rod body inside, and the first wheel body and the fourth wheel body are both arranged to rotate and slide with the first rod body. During use, the first wheel body and the fourth wheel body are both arranged to rotate with the first rod body, and the sliding is only used for replacement. Although the sliding setting is not used during normal use, the sliding function becomes particularly important when the first wheel body or the fourth wheel body needs to be replaced. The sliding setting can easily disconnect the first wheel body or the fourth wheel body from the first rod body, thereby simplifying the replacement process, improving maintenance efficiency, making maintenance work more convenient, and reducing maintenance costs. During the installation process, since the first wheel body and the fourth wheel body are tightly matched with the first rod body and connected by rotation, installation errors can be effectively reduced. This precise matching relationship ensures the stability and accuracy of the transmission system and improves the operating efficiency of the entire equipment.

[0012] Preferably, a bearing is provided on the fourth wheel body and / or the second wheel body, and a cover body is further provided on the bearing which is fixed relative to the first rod body / frame. The cover body is made of heat dissipation material. The setting of the bearing effectively reduces the direct contact between the fourth wheel body and other components in the frame, thereby reducing the wear and energy loss caused by friction, which not only extends the service life of the components, but also improves the transmission efficiency. The setting of the cover body effectively isolates the pollution and damage factors of the external environment, such as dust, moisture, impurities, etc., thereby protecting the bearing from these factors, helping to extend the service life of the bearing and reduce the failure rate caused by pollution and damage. The cover body is made of heat dissipation material, which means that it can effectively dissipate the heat generated by the bearing during operation, prevent temperature increase and performance degradation caused by heat accumulation, help maintain stable operation of the bearing, and further improve the overall performance of the transmission system.

[0013] Preferably, a U-shaped third frame is provided on the first frame / second frame, and the bending depth of the third frame is not less than the diameter of the first wheel body. The cover body is fixed relative to the first rod body / third frame via an external connecting piece. The U-shaped third frame provides additional support for the first wheel body (and the transmission system connected to it). Since the bending depth of the third frame is not less than the diameter of the first wheel body, this ensures that the first wheel body can be firmly installed in the third frame, reduces the risk of shaking or falling off due to vibration or external force, enhances the structural stability of the entire transmission system, and is convenient for accommodating first wheels of different sizes that are replaced later.

[0014] Preferably, a third roller is also provided on the first / second frame. The third roller is arranged to rotate and slide relative to the first / second frame. The third roller is not collinear with the first and second rollers. The provision of the third roller enhances the flexibility and adaptability of the entire system. Because it can rotate and slide relative to the first / second frame, its position and posture can be adjusted according to different work requirements or environmental conditions, thereby achieving more complex processing or transmission tasks.

[0015] The beneficial effects of the present invention are as follows: through the design of the deceleration module, in which the diameter of the second wheel body is smaller than the diameter of the first wheel body, a deceleration transmission effect is formed. This design enables the output torque of the driving member to be amplified through the deceleration process, thereby more effectively driving the walking belt to rotate. At the same time, the deceleration process also helps to improve the smoothness and efficiency of the transmission and reduce energy loss. There are two transmission belts / heat dissipation holes on the transmission belt. This technical means significantly enhances the heat dissipation performance of the transmission structure. When the motor and transmission system are running, a certain amount of heat will be generated. If it is not dissipated in time, it will affect the stability and service life of the system. The design of multiple transmission belts / heat dissipation holes allows air to circulate, effectively reducing the temperature of the transmission belt and its surrounding components, ensuring the normal operation of the system, and improving the stability and service life of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the deceleration module structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the back structure of the main body of the present invention;

[0018] Figure 3 This is one of the exploded schematic diagrams of the utility model;

[0019] Figure 4 This is the second exploded schematic diagram of the body of the present utility model;

[0020] Figure 5 This is one of the schematic diagrams of the front structure of the main body of the present utility model;

[0021] Figure 6 This is the second schematic diagram of the front structure of the main body of the present utility model;

[0022] Figure 7 This is a schematic diagram of the cover structure of the utility model;

[0023] Figure 8 This is a schematic diagram of the first wheel structure of the present utility model;

[0024] Figure 9 This is a schematic diagram of the third wheel structure of the present utility model;

[0025] Figure 10 This is a schematic diagram of the internal structure of the main body of the utility model;

[0026] Figure 11 This is a schematic diagram of the driving component structure of the utility model.

[0027] Reference numerals include:

[0028] 1. Frame; 2. Driving part; 3. Deceleration module; 4. Walking belt; 11. First frame; 12. Second frame; 13. Third frame; 14. First plate; 15. Fourth frame; 16. Third roller; 17. First roller; 18. Second roller; 31. Trough; 32. Second wheel; 33. First wheel; 34. Transmission belt; 35. Fourth wheel; 36. Bearing; 37. Cover; 38. First rod; 39. Third wheel. DETAILED DESCRIPTION

[0029] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0030] See also Figures 1 to 11 As shown, the utility model is a treadmill external rotation brushless motor transmission structure, including a frame 1, a driving member 2 mounted on the frame 1 and a deceleration module 3 used in conjunction with the driving member 2; the driving member 2 is used to drive the external walking belt 4 to rotate; the deceleration module 3 includes a first wheel body 33 rotatably arranged relative to the frame 1 and a second wheel body 32 arranged at the output end of the driving member 2, the diameter of the second wheel body 32 is smaller than the diameter of the first wheel body 33, the second wheel body 32 drives the walking belt 4 to rotate via the first wheel body 33, a transmission belt 34 is sleeved on the first wheel body 33, the end of the transmission belt 34 away from the first wheel body 33 is arranged on the first wheel body 33, and two transmission belts 34 are provided / the transmission belt 34 is provided with heat dissipation holes.

[0031] Specifically, through the design of the deceleration module 3, in which the diameter of the second wheel body 32 is smaller than the diameter of the first wheel body 33, a reduction transmission effect is formed. This design allows the output torque of the driving member 2 to be amplified through the deceleration process, thereby more effectively driving the walking belt 4 to rotate. At the same time, the deceleration process also helps to improve the smoothness and efficiency of the transmission and reduce energy loss. The transmission belt 34 is provided with two heat dissipation holes. This technical means significantly enhances the heat dissipation performance of the transmission structure. When the motor and transmission system are running, a certain amount of heat will be generated. If it is not dissipated in time, it may affect the stability and service life of the system. The design of multiple transmission belts 34 and heat dissipation holes allows air to circulate, effectively reducing the temperature of the transmission belt 34 and its surrounding components, and ensuring the normal operation of the system.

[0032] Specifically, the two drive belts 34 are arranged in parallel, with a gap formed between adjacent drive belts 34. This gap between the two drive belts 34 facilitates air circulation, further enhancing the heat dissipation performance of the transmission structure. When the motor and transmission system operate at high speeds, the heat generated can be quickly dissipated through these gaps, reducing the temperature of the drive belts and surrounding components and ensuring stable system operation. The parallel arrangement of the two drive belts 34 facilitates installation, and the gap can be adjusted according to actual needs. Furthermore, during maintenance, the drive belts can be inspected and replaced more easily, reducing maintenance difficulty and cost. The parallel arrangement of the two drive belts 34 can adapt to different load requirements by adjusting the gap and tension, ensuring that the transmission system always maintains optimal working condition.

[0033] Specifically, in other embodiments, a plurality of transmission belts 34 are provided.

[0034] Specifically, the driving member 2 is an external rotating motor, which includes a stator part and a rotor part. The rotor part is provided with a fan for cooling the transmission belt 34. By directly cooling the transmission belt through the fan, the heat generated by friction and tension of the transmission belt 34 during operation can be effectively reduced, and the damage to the transmission belt material caused by thermal stress can be reduced, thereby extending the service life of the transmission belt. The transmission belt 34 is prone to expansion, deformation or wear at high temperatures, which in turn affects the stability and accuracy of the entire transmission system. Through the cooling effect of the fan, the transmission belt 34 can be kept working at a lower and stable temperature, thereby improving the stability and reliability of the entire transmission system. By directly arranging the fan on the rotor part, the air flow effect generated when the motor rotates can be utilized to improve the air supply efficiency and heat dissipation effect of the fan. This design not only reduces additional energy consumption and noise, but also makes the heat dissipation system more compact and efficient. Since the energy consumption of the fan is relatively low, the energy utilization efficiency of the entire transmission system is improved.

[0035] Specifically, in this embodiment, the driving member 2 is a single-sided outward rotating motor. Since the outward rotation has a greater torque than the inward rotation, it can be made shorter and hidden in the side of the frame 1, which can save the need for a special location for installing the motor in the front. This saves transportation costs and packaging space, and through multi-stage transmission, the motor can be miniaturized, which saves both cost and energy.

[0036] Specifically, the frame 1 includes a first frame 11, a second frame 12 and a first plate 14 arranged on the first frame 11 and the second frame 12. The first frame 11, the second frame 12 and the first plate 14 are split. The first plate 14 is used to provide support for the side of the walking belt 4. The split design allows the first frame 11, the second frame 12 and the first plate 14 to be disassembled and installed separately. When a component fails or requires maintenance, there is no need to disassemble the entire frame, which greatly simplifies the maintenance process and improves maintenance efficiency. At the same time, the split components are relatively small in size, which is convenient for packaging, transportation and storage, reducing logistics costs and storage space requirements. The material of the first plate 14 is stainless steel, aluminum alloy, carbon steel plate or composite material.

[0037] Specifically, the frame 1 also includes a first roller 17 and a second roller 18 rotatably arranged on the first frame 11 and / or the second frame 12. The first roller 17 and the second roller 18 are respectively located at both ends of the walking belt 4 to drive the rotation of the walking belt 4. The first roller 17 and the second roller 18 are respectively located at both ends of the walking belt 4. Through their rotation, they can stably drive the walking belt 4 to perform a circular motion. This design ensures the stability and continuity of the walking belt 4 during operation, improving the user's exercise experience. In addition to driving the walking belt 4 to rotate, the first roller 17 and the second roller 18 also play a supporting and guiding role. They can ensure that the walking belt 4 runs on the specified path, prevent it from deviating or twisting, and thus extend the service life of the walking belt.

[0038] Specifically, in this embodiment, the first roller body 17 and the second roller body 18 are both provided on the frame 1 via external connecting members, and the connecting members may be bolts.

[0039] Specifically, a fourth wheel body 35 protrudes from the first wheel body 33, and the diameter of the fourth wheel body 35 is smaller than the diameter of the first wheel body 33. A third wheel body 39 is provided on the second roller body 18, and the axis of the third wheel body 39 is parallel to the axis of the fourth wheel body 35. The third wheel body 39 is connected to the fourth wheel body 35 via a transmission belt 34. The diameter of the third wheel body 39 is larger than the diameter of the fourth wheel body 35. Since the diameter of the fourth wheel body 35 is smaller than the first wheel body 33 (in other embodiments, the diameter of the fourth wheel body 35 is also smaller than the second wheel body 32 to which the fourth wheel body 35 is connected), and the diameter of the third wheel body 39 is larger than the fourth wheel body 35, this design causes the rotation speed transmitted to the third wheel body 39 through the transmission belt 34 to change when the first wheel body 33 rotates. Specifically, due to the difference in diameter, the rotation speed of the fourth wheel body 35 will be higher than the rotation speed of the third wheel body 39, but the torque transmitted to the third wheel body 39 will increase accordingly, which helps to reduce energy loss and frictional heat.

[0040] Specifically, the first wheel 33 and the fourth wheel 35 each contain a first rod 38. Both the first wheel 33 and the fourth wheel 35 are configured to rotate and slide with the first rod 38. During use, the first wheel 33 and the fourth wheel 35 are configured to rotate with the first rod 38, and the sliding function is only used for replacement. Although the sliding function is not utilized during normal use, it becomes particularly important when the first wheel 33 or the fourth wheel 35 needs to be replaced. The sliding function allows the first wheel 33 or the fourth wheel 35 to be easily disconnected from the first rod 38, thereby simplifying the replacement process, improving maintenance efficiency, making maintenance more convenient, and reducing maintenance costs. During installation, since the first wheel 33 and the fourth wheel 35 are tightly coupled with the first rod 38 and connected by rotation, installation errors can be effectively reduced. This precise coupling ensures the stability and accuracy of the transmission system and improves the operating efficiency of the entire device.

[0041] Specifically, in other embodiments, guide slots are provided at the ends of the first wheel body 33 and the fourth wheel body 35 for assembling the first rod body 38 .

[0042] Specifically, a bearing 36 is provided on the fourth wheel body 35 and / or the second wheel body 32, and a cover body 37 is also provided on the bearing 36, which is fixed relative to the first rod body 38 / frame 1. The cover body 37 is made of heat dissipation material. The setting of the bearing 36 effectively reduces the direct contact between the fourth wheel body 35 and other components in the frame 1, thereby reducing the wear and energy loss caused by friction, which not only extends the service life of the components, but also improves the transmission efficiency. The setting of the cover body 37 effectively isolates the pollution and damage factors of the external environment, such as dust, moisture, impurities, etc., thereby protecting the bearing 36 from these factors, helping to extend the service life of the bearing and reduce the failure rate caused by pollution and damage. The cover body 37 is made of heat dissipation material, which means that it can effectively dissipate the heat generated by the bearing 36 during operation, prevent the temperature increase and performance degradation caused by heat accumulation, help maintain the stable operation of the bearing, and further improve the overall performance of the transmission system.

[0043] Specifically, in this embodiment, the shaft sleeve is used for multiple purposes. The inner ring of the bearing 36 passes through the fourth wheel body 35. The cover body 37 is respectively provided with a large hole and a small hole. The large hole is used to accommodate the bearing 36, and the small hole of the cover body 37 is used to fix the first rod body 38 to ensure that the first wheel body 33 and the fourth wheel body 35 rotate concentrically around the periphery of the first rod body 38. The cover body 37 is a shaft sleeve.

[0044] Specifically, a U-shaped third frame 13 is provided on the first frame 11 / second frame 12, and the bending depth of the third frame 13 is not less than the diameter of the first wheel body 33. The cover body 37 is fixed relative to the first rod body 38 / third frame 13 via an external connecting piece. The U-shaped third frame 13 provides additional support for the first wheel body 33 (and the transmission system connected to it). Since the bending depth of the third frame 13 is not less than the diameter of the first wheel body 33, this ensures that the first wheel body 33 can be firmly installed in the third frame 13, reducing the risk of shaking or falling off due to vibration or external force, enhancing the structural stability of the entire transmission system, and at the same time facilitating the subsequent replacement of first wheel bodies 33 of different sizes.

[0045] Specifically, the cover body 37 is fixed relative to the first rod body 38 / the third frame body 13 through an external connecting piece. This design makes the installation and removal of the cover body 37 more convenient and quick. When the transmission system needs to be maintained or parts need to be replaced, the cover body 37 can be easily removed without disassembling the entire transmission system. The connection method can be bolts.

[0046] Specifically, a third roller 16 is also provided on the first frame 11 / second frame 12. This roller 16 is arranged to rotate and slide relative to the first frame 11 / second frame 12. The third roller 16 is not collinear with the first roller 17 and the second roller 18. The configuration of the third roller 16 enhances the flexibility and adaptability of the entire system. Because it can rotate and slide relative to the first frame 11 / second frame 12, its position and posture can be adjusted to suit different work requirements or environmental conditions, enabling more complex processing or transfer tasks.

[0047] Specifically, the third roller body 16 , the first roller body 17 and the second roller body 18 form a triangle structure.

[0048] Specifically, the roller body includes a rotating cylinder portion and a rod portion. The rod portion is fixed relative to the frame 1, and the rotating cylinder portion is rotatably arranged on the rod portion. The rod portion is made of lightweight material.

[0049] Specifically, the rod portion of the third roller body 16 is slidably arranged relative to the frame 1 . After sliding to a designated position, the rod portion of the third roller body 16 is fixed to the frame 1 via external bolts.

[0050] Specifically, a fourth frame 15 is provided on a side of the first plate 14 away from the walking belt 4 . The fourth frame 15 is in an inverted U shape for supporting the fourth frame 15 .

[0051] Specifically, a groove 31 is formed on the cover 37 , and the cover 37 is fixed to the bearing 36 via the groove 31 . In this embodiment, the groove 31 is a small hole tooth.

[0052] Specifically, in this embodiment, a through hole is provided at the axis of the wheel body, and a plurality of through holes are provided. The plurality of through holes are arranged in a ring array around the axis of the wheel body to increase the heat dissipation area.

[0053] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A treadmill external-rotation brushless motor transmission structure, comprising a frame (1), a driving member (2) mounted on the frame (1), and a speed reduction module (3) used in conjunction with the driving member (2); characterized in that: The driving member (2) is used to drive the external walking belt (4) to rotate; The deceleration module (3) comprises a first wheel body (33) rotatably arranged relative to the frame (1) and a second wheel body (32) arranged at the output end of the driving member (2); the diameter of the second wheel body (32) is smaller than the diameter of the first wheel body (33); the second wheel body (32) drives the walking belt (4) to rotate via the first wheel body (33); a transmission belt (34) is sleeved on the first wheel body (33); an end of the transmission belt (34) away from the first wheel body (33) is arranged on the first wheel body (33); two transmission belts (34) are provided; and heat dissipation holes are opened on the transmission belt (34).

2. The outward-rotating brushless motor transmission structure of a treadmill according to claim 1, characterized in that: The two transmission belts (34) are arranged in parallel, and a gap is formed between the two transmission belts (34).

3. The outward-rotating brushless motor transmission structure of a treadmill according to claim 1, characterized in that: The driving member (2) is an external rotating motor, and the driving member (2) comprises a stator part and a rotor part. The rotor part is provided with a fan for cooling the transmission belt (34).

4. The outward-rotating brushless motor transmission structure of a treadmill according to claim 1, characterized in that: The frame (1) comprises a first frame (11), a second frame (12) and a first plate (14) arranged on the first frame (11) and the second frame (12); the first frame (11), the second frame (12) and the first plate (14) are arranged in a split type; the first plate (14) is used to provide support for the side used by the walking belt (4).

5. The outward-rotating brushless motor transmission structure of a treadmill according to claim 4, characterized in that: The frame (1) also includes a first roller (17) and a second roller (18) rotatably arranged on the first frame (11) and / or the second frame (12); the first roller (17) and the second roller (18) are respectively located at two ends of the walking belt (4) to drive the rotation of the walking belt (4).

6. The outward-rotating brushless motor transmission structure of a treadmill according to claim 5, characterized in that: A fourth wheel body (35) protrudes from the first wheel body (33), and the diameter of the fourth wheel body (35) is smaller than the diameter of the first wheel body (33). A third wheel body (39) is provided on the second roller body (18), and the axis of the third wheel body (39) is parallel to the axis of the fourth wheel body (35). The third wheel body (39) is connected to the fourth wheel body (35) via a transmission belt (34), and the diameter of the third wheel body (39) is larger than the diameter of the fourth wheel body (35).

7. The outward-rotating brushless motor transmission structure of a treadmill according to claim 6, characterized in that: The first wheel body (33) and the fourth wheel body (35) contain a first rod body (38) therein, and the first wheel body (33) and the fourth wheel body (35) are both rotated and slidably arranged with the first rod body (38).

8. The outward-rotating brushless motor transmission structure of a treadmill according to claim 7, characterized in that: A bearing (36) is provided on the fourth wheel body (35) and / or the second wheel body (32), and a cover body (37) is also provided on the bearing (36) and is fixedly arranged relative to the first rod body (38) / frame (1).

9. The outward-rotating brushless motor transmission structure of a treadmill according to claim 8, characterized in that: A U-shaped third frame (13) is provided on the first frame (11) / the second frame (12), and the cover (37) is fixedly provided relative to the first rod (38) / the third frame (13) via an external connecting member.

10. The outward-rotating brushless motor transmission structure of a treadmill according to claim 5, characterized in that: A third roller (16) is also provided on the first frame (11) / the second frame (12). The third roller (16) is rotated and slidably provided relative to the first frame (11) / the second frame (12). The third roller (16) is not collinear with the first roller (17) and the second roller (18).

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