Structure of multi-stage transmission energy-saving vibratable outward-rotating motor of walking and running machine

Abstract

The utility model relates to the technical field of treadmills, and particularly discloses a structure of a multi-stage transmission energy-saving shakeable outward-rotating motor of a walking and running machine, which comprises a motor body, a transmission mechanism and a connecting structure, and the motor body drives a running belt of an external treadmill to rotate through the transmission mechanism. The connecting structure is used for connecting the motor body with a rack of an external treadmill in a matching manner; the motor body comprises a stator part and a rotor part matched with the stator part, and the rotor part is in driving connection with a running belt of an external running machine so as to drive the running belt to rotate.

Description

Technical Field

[0001] This utility model relates to the field of treadmill technology, and in particular discloses the structure of a multi-stage transmission energy-saving vibrating external motor for a walking treadmill. Background Technology

[0002] In existing treadmill technology, motors typically drive the running belt in a unidirectional rotation mode to provide a stable exercise platform. However, some treadmills need to simulate different terrains or vibration effects during operation to enhance the user experience or facilitate rehabilitation training. Therefore, effectively controlling the forward and reverse rotation of the motor to achieve the vibration effect of the running belt while ensuring system stability, energy efficiency optimization, and smooth operation has become a key technical issue of concern in the industry. Traditional treadmill structures usually employ a single-end fixed motor structure, where the motor body is mounted on the frame via a fixed bracket and drives the running belt through a transmission system. However, this fixing method can lead to problems such as uneven vibration, uneven force on the transmission system, or increased energy loss. Therefore, how to improve transmission stability, reduce mechanical wear, and optimize motor efficiency while achieving the treadmill's vibration function has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a structure of a multi-stage transmission energy-saving vibrating external motor for a treadmill.

[0004] To achieve the above objectives, this utility model discloses a multi-stage transmission energy-saving vibratory external motor structure for a treadmill, comprising a motor body, a transmission mechanism, and a connecting structure. The motor body drives the treadmill belt of the external treadmill to rotate via the transmission mechanism. The connecting structure is used to connect the motor body and the frame of the external treadmill. The motor body includes a stator and a rotor that cooperates with the stator. The rotor is driven to connect with the treadmill belt of the external treadmill to drive the treadmill belt to rotate.

[0005] Furthermore, the connection structure is a double-end support structure, which includes a support block mounted on the frame of the treadmill, with both ends of the rotor rotatably mounted on the support block, and the input end of the transmission mechanism connected to either end of the rotor.

[0006] Furthermore, the connection structure is a single-end fixed structure, which includes a first connecting member. The stator is fixedly connected to the frame of the external treadmill via the first connecting member. One end of the rotor is rotatably mounted on the first connecting member, and the other end of the rotor is connected to the running belt of the treadmill via a transmission mechanism.

[0007] Furthermore, the first connector is arranged in a stepped structure, and the first connector includes at least two support plates with a height difference and a middle connecting plate located between the two support plates. The stator of the motor body is connected to the middle connecting plate, and the two support plates are used to connect to the frame of the external treadmill.

[0008] Furthermore, the first connector is arranged in a stepped structure, and the first connector includes at least two support plates with a height difference and a middle connecting plate located between the two support plates. The stator of the motor body is connected to the middle connecting plate, and the two support plates are used to connect to the frame of the external treadmill.

[0009] Furthermore, when the connection structure is a single-end fixed structure, the single-end fixed structure also includes a second connecting member. The second connecting member includes a mounting plate and a shaft assembly disposed on the mounting plate. The stator of the motor body is fixedly connected to the shaft assembly, and the rotor of the motor body is rotatably disposed on the shaft assembly via a bearing. The mounting plate is used to fixally connect with the first connecting member.

[0010] Furthermore, the mounting plate has at least two first grooves recessed at one end near the first connector, and the at least two first grooves are symmetrically arranged along the axis of symmetry of the mounting plate.

[0011] Furthermore, a buffer pad is provided between the first connector and the second connector. The buffer pad is integrally molded from silicone material and has a wave-shaped structure or a honeycomb structure to enhance vibration absorption capacity.

[0012] Furthermore, the first and second connectors are provided with a plurality of threaded holes for receiving external bolts, and the first and second connectors are detachably connected via external bolts.

[0013] Furthermore, the central connecting plate has a plurality of first strip-shaped holes arranged in a rectangular array on the side of the central connecting plate away from the motor body mounting surface. The first connector has a first opening that penetrates the central connecting plate and any one of the support plates.

[0014] Furthermore, the central connecting plate and the support plate are arranged perpendicularly to each other, and the central connecting plate and the support plate are integrally constructed.

[0015] Furthermore, the support plate has multiple second strip holes for external bolts to pass through, and the support plate is detachably connected to the treadmill frame via external bolts.

[0016] Furthermore, the shaft assembly protrudes from the surface of the mounting plate, and the mounting plate and the shaft assembly are integrally constructed.

[0017] Furthermore, the rotor component of the motor body includes a rotor housing, a plurality of magnetic components disposed inside the rotor housing, and a drive shaft connected to the rotor housing. The drive shaft is used to drive the treadmill belt to rotate. The drive shaft is rotatably mounted relative to the frame of the treadmill via a connecting structure. The stator component includes a stator core and a coil wound on the stator core. The rotor housing is sleeved on the outside of the stator core. The drive shaft is located inside the stator core and the rotor housing.

[0018] Furthermore, the motor body also includes a cooling fan that is installed in conjunction with the rotor housing. The cooling fan includes an outer ring body connected to the rotor housing, an inner ring body connected to the drive shaft, and multiple fan blades connected between the outer ring body and the inner ring body.

[0019] Furthermore, the transmission mechanism includes a reduction module connected between the motor body and the treadmill belt. The reduction module includes a first wheel and a second wheel that are rotatably arranged relative to the treadmill belt. The first wheel and the second wheel are connected in a transmission manner. The second wheel is used to connect to the drive shaft of the motor body. The diameter of the second wheel is smaller than the diameter of the first wheel. The second wheel drives the treadmill belt to rotate via the first wheel.

[0020] Furthermore, the deceleration module comprises multiple sets, which are connected in series. The first pulley of one deceleration module is connected to the second pulley of another deceleration module. The first and second pulleys are belt pulleys, and are connected by a first transmission belt.

[0021] Furthermore, the structure of the external rotating motor also includes a commutation drive device connected to the motor body. The commutation drive device is used for the forward and reverse rotation of the rotor of the motor body to cause the running belt of the treadmill to vibrate. The commutation drive device includes a frequency converter electrically connected to the stator of the motor body, or an H-bridge circuit electrically connected to the stator for controlling the direction of the current flowing through the stator, or an electromagnetic clutch and commutation gear set connected between the rotor and the running belt.

[0022] This utility model provides a structure for a multi-stage transmission energy-saving vibrating external motor for a treadmill, mainly composed of a motor body, a transmission mechanism, and a connecting structure. The core improvement of this technical solution lies in the compatibility design of two motor fixing methods (double-end support structure or single-end fixing structure), and the realization of forward and reverse rotation of the motor through a reversing drive device, thereby driving the running belt to produce a vibration effect. Specifically:

[0023] The motor body adopts an external rotor structure, including a stator and a rotor. The drive shaft of the rotor drives the running belt directly or via a reduction module, ensuring high efficiency in energy transfer.

[0024] The connection structure can be selected as a double-end support structure (i.e., both ends of the rotor are supported by the frame) or a single-end fixed structure (i.e., the stator is fixed by the first connector, and one end of the rotor is rotated and supported), which enhances the installation flexibility.

[0025] The transmission mechanism adopts a multi-stage reduction module, which optimizes the motor torque output through the transmission ratio of the first and second rollers, enabling the treadmill belt to run smoothly.

[0026] The reversing drive device uses a frequency converter, H-bridge circuit or electromagnetic clutch + reversing gear set to change the rotation direction of the motor rotor according to the control signal, so that the running belt produces a vibration effect while maintaining transmission stability.

[0027] The beneficial effects of this invention are as follows: By optimizing the motor support structure, improving the transmission method, and introducing motor commutation control technology, this invention enhances the performance of the treadmill in multiple aspects.

[0028] Improved transmission stability: The double-end support structure allows the motor rotor to rotate more stably on the frame, reducing imbalances during operation and extending service life.

[0029] Enhanced vibration control: The treadmill adopts a reversing drive device, which can precisely control the vibration mode of the running belt, making it suitable for rehabilitation training, professional sports training and other scenarios, thus improving the applicability of the equipment.

[0030] Optimized energy efficiency: The multi-stage reduction module design enables the motor to provide greater output torque with lower power consumption, improving energy utilization, reducing motor heat generation, and improving overall work efficiency.

[0031] Adaptable to different treadmill architectures: Single-end fixed or double-end support structures can be selected according to actual needs, enhancing the compatibility of the equipment and making the technology applicable to different models and application scenarios of treadmills.

[0032] In summary, this invention, while ensuring the normal operation of the treadmill, further optimizes structural stability, transmission efficiency, and vibration control capabilities, thus meeting the needs of intelligent treadmills in multiple scenarios and possessing high market application value. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the multi-stage transmission energy-saving vibratory external rotating motor in Embodiment 2 of this utility model;

[0034] Figure 2 This is a schematic diagram showing the disassembled state of the multi-stage transmission energy-saving vibratory external rotating motor in Embodiment 2 of this utility model;

[0035] Figure 3This is a schematic diagram of the structure of the first connecting member in Embodiment 2 of this utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the second connecting member in Embodiment 2 of this utility model;

[0037] Figure 5 This is a schematic diagram of the multi-stage transmission energy-saving vibrating external motor installed on an external treadmill in Embodiment 2 of this utility model;

[0038] Figure 6 for Figure 5 A magnified structural diagram of part A in the middle;

[0039] Figure 7 This is a schematic diagram of the rotor housing, drive shaft, and second wheel in Embodiment 2 of this utility model;

[0040] Figure 8 This is a schematic diagram of the structure of the multi-stage transmission energy-saving vibratory external rotating motor in Embodiment 1 of this utility model;

[0041] Figure 9 for Figure 8 A magnified structural diagram of section C;

[0042] Figure 10 This is an exploded structural diagram of the motor body in Embodiment 1 of this utility model.

[0043] The reference numerals in the figures include:

[0044] 1. Motor body; 2. Transmission mechanism; 3. First connecting piece; 4. Second connecting piece; 5. Buffer pad; 6. Threaded hole; 7. First strip hole; 8. First opening; 11. Stator component; 111. Stator core; 12. Rotor component; 120. Cooling fan; 1201. Outer ring; 1202. Inner ring; 1203. Fan blade; 121. Rotor housing; 122. Magnetic component; 123. Drive shaft; 124. 125. Heat port; 21. Bearing; 21. Reduction module; 211. First rotating wheel; 212. Second rotating wheel; 213. First transmission belt; 31. Support plate; 311. Second strip hole; 32. Middle connecting plate; 41. Mounting plate; 411. First groove; 412. Positioning hole; 42. Shaft assembly; 421. Through hole; 90. Frame; 901. Running belt; 902. Rotating shaft; 91. Support block; 92. Second groove. Detailed Implementation

[0045] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0046] Example 1:

[0047] Please see Figures 1 to 10 As shown, this embodiment provides a structure for a multi-stage transmission energy-saving vibrating external motor for a treadmill. The structure consists of a motor body 1, a transmission mechanism 2, and a connecting structure. The motor body 1 adopts an external motor structure, the transmission mechanism 2 adopts a two-stage gear belt reduction mechanism, and the connecting structure adopts a double-end support structure. The double-end support structure includes a support block 91 set on the frame 90 of the treadmill. The two ends of the rotor 12 are rotatably set on the support block 91, and the input end of the transmission mechanism 2 is connected to any one end of the rotor 12.

[0048] Specifically, two support blocks 91 are provided, and a second groove 92 is recessed on the frame 90 of the treadmill. The second groove 92 adopts a modular design, that is, the second groove 92 is composed of three interconnected rectangular grooves. The first rectangular groove is used to install the motor body 1, and a support block 91 protrudes from the first rectangular groove. Another support block 91 protrudes from the second rectangular groove adjacent to the first rectangular groove, and the transmission mechanism 2 is set in the second rectangular groove. The second wheel 212 of the reduction module 21 of the transmission mechanism 2 is fixedly connected to the drive shaft 123 of the motor body 1. The third rectangular groove is used to install the first wheel 211 of the secondary reduction module 21 and the rotating shaft 902 of the treadmill (two are provided and are rotatably set at both ends of the frame 90 of the treadmill for the running belt 901 to rotate around).

[0049] Specifically, in the double-end support structure, the two ends of the motor rotor 12 are mounted on the support blocks 91 on the treadmill frame 90, enabling it to rotate stably and providing mechanical support through the support blocks 91, which helps to reduce vibration and sway during motor operation and improve transmission stability.

[0050] In the single-end fixed structure, the stator 11 is fixed to the treadmill frame 90 via the first connector 3. One end of the rotor 12 is housed in the rotating shaft 902 bearing 125 of the first connector 3, while the other end drives the running belt 901 to rotate via the transmission mechanism 2. This first connector 3 adopts a stepped structure, including two support plates 31 with a height difference and a central connecting plate 32. The stator 11 is mounted on the central connecting plate 32, while the support plates 31 are fixedly connected to the treadmill frame 90 to provide stable installation support. In the single-end fixed structure, a second connector 4 can also be used. This connector includes a mounting plate 41 and a shaft assembly 42 mounted thereon. The stator 11 of the motor body 1 is fixed to the shaft assembly 42, while the rotor 12 is rotatably mounted within the shaft assembly 42 via a bearing 125 and fixedly connected to the first connector 3 by the mounting plate 41, thereby enhancing the stability of the motor installation. Compared to the traditional fixed method of treadmills, this dual-end or single-end optional structure makes the motor installation method more flexible and can adapt to the design needs of different types of treadmills.

[0051] Specifically, the motor body 1 in this embodiment adopts an external rotor structure, mainly including a stator 11 and a rotor 12. The stator 11 is fixed to the frame 90 of the treadmill, while the rotor 12 rotates relative to the stator 11 and drives the running belt 901 to rotate through the transmission mechanism 2. The rotor 12 includes a rotor housing 121, an internal magnetic component 122, and a drive shaft 123, wherein the drive shaft 123 can transmit power directly or through a reduction mechanism. The stator 11 of the motor includes a stator core 111 and its wound coils. When the coils are energized, they generate a magnetic field, which drives the rotor 12 to rotate. In addition, a cooling fan 120 is provided on the outside of the rotor housing 121. This fan includes an outer ring 1201, an inner ring 1202 connected to the drive shaft 123, and multiple fan blades 1203. It utilizes the airflow during motor rotation to dissipate heat, thereby improving the stability and service life of the motor.

[0052] In this embodiment, the transmission mechanism 2 employs a two-stage reduction module 21. This module includes a first pulley 211 and a second pulley 212. The first pulley 211 is connected to the running belt 901, and the second pulley 212 is connected to the drive shaft 123 of the motor. The diameter of the second pulley 212 is smaller than that of the first pulley 211, thereby achieving speed reduction and torque increase in power output and improving transmission efficiency. Furthermore, the reduction module 21 can be configured in multiple series connections, where the first pulley 211 of one reduction module is connected to the second pulley 212 of another reduction module, and power is transmitted via a transmission belt, further optimizing the speed matching between the motor output and the running belt 901. Compared to traditional direct-drive schemes, this multi-stage reduction structure effectively reduces motor load, increases torque output, reduces energy consumption, and ensures the smooth operation of the running belt 901.

[0053] To achieve the vibration function of the treadmill belt 901, this invention introduces a reversing drive device. This device can employ different schemes, such as a frequency converter, an H-bridge circuit, or an electromagnetic clutch and reversing gear set, to achieve forward and reverse rotation control of the motor. The frequency converter adjusts the frequency and direction of the motor drive current, enabling the motor to switch rotation directions in a short time, thus driving the treadmill belt 901 to reciprocate rapidly, creating a vibration effect. The H-bridge circuit is suitable for DC motors, changing the motor's rotation direction by controlling the current direction to achieve a similar vibration effect. Alternatively, an electromagnetic clutch combined with a reversing gear set can be used. The electromagnetic clutch is responsible for disengaging or engaging power transmission within a specific time, while the reversing gear set can switch the rotation direction, achieving controllable vibration of the treadmill belt 901. Compared to traditional unidirectional drive structures, this reversing drive method provides more diverse movement modes, suitable for applications such as rehabilitation training, sports simulation, or professional fitness equipment.

[0054] Example 2:

[0055] Please see Figures 1 to 10 As shown, the core structure of this utility model includes a motor body 1, a transmission mechanism 2, and a first connecting member 3. The motor body 1 includes a stator 11 and a rotor 12 that cooperates with it. The rotor 12 is connected to the treadmill belt via the transmission mechanism 2 to provide power output. To ensure stable installation of the motor, the stator 11 of the motor body 1 is fixed to the first connecting member 3 via a second connecting member 4. The first connecting member 3 is used to connect the entire motor structure to the treadmill frame.

[0056] To optimize the fixing method of the motor body 1, the first connecting member 3 adopts a stepped structure, which consists of two support plates 31 with a height difference and a middle connecting plate 32 located between them (in this embodiment, the support plates 31 and the middle connecting plate 32 are an integral structure). The stator 11 of the motor body 1 is directly mounted on the middle connecting plate 32, while the two support plates 31 are used to connect the entire structure to the treadmill frame. Accordingly, the treadmill frame needs to have a structural structure adapted to the stepped first connecting member 3. Compared with the existing single-plane installation method, this structure has stronger stability and can adapt to the installation requirements of frames of different heights, thereby enhancing the adaptability of the equipment and effectively reducing the impact of frame resonance on the treadmill movement.

[0057] Regarding the motor mounting, the second connector 4 includes an integrally constructed mounting plate 41 and a shaft assembly 42. The mounting plate 41 is bolted to the first connector 3, a simple, reliable, and cost-effective method. The shaft assembly 42 supports the stator 11 of the motor body 1 and allows the rotor 12 to rotate freely within the shaft assembly 42 via bearings 125 (the shaft assembly 42 is hollow, with a through hole 421 in the center for accommodating the drive shaft 123, and a mounting position for mounting the bearings 125; the drive shaft 123 is rotatably mounted within the through hole 421 via the bearings 125). The shaft assembly 42 is designed as a protrusion from the surface of the mounting plate 41 and is integrally formed with the mounting plate 41. This integrated structure, compared to traditional bolted or welded designs, reduces connection points, increases structural strength, and reduces the complexity of installation and maintenance.

[0058] Furthermore, four first grooves 411 are provided at one end of the mounting plate 41 near the first connector 3, with two grooves symmetrically arranged along the axis of symmetry of the mounting plate 41. The first grooves 411 can effectively reduce the friction area of ​​the contact surface, thereby reducing frictional resistance and preventing excessive heat generation during motor operation. Positioning holes 412 (arranged in a racetrack shape) are also provided on both sides of the mounting plate 41 for convenient assembly with the first connector 3. In addition, the design of the first grooves 411 can effectively reduce material usage, especially when minimal material support is required between the bushing and the bracket. The design of the first grooves 411 can also enhance the structure's seismic resistance. When the motor vibrates or experiences impact, the first grooves 411 help disperse these stresses, reduce stress concentration in the structure, and improve the seismic and impact resistance of the mounting components.

[0059] In this embodiment, the motor body 1 also adopts an external rotor structure. Its rotor component 12 consists of a rotor housing 121, multiple magnetic components 122, and a drive shaft 123. The magnetic components 122 are distributed along the inner circumferential surface of the rotor housing 121, while the drive shaft 123 is used to connect to the input end of the transmission mechanism 2. The stator component 11 includes a stator core 111 and coils wound on the stator core 111. The rotor housing 121 is directly fitted onto the outside of the stator core 111 and fixedly connected to the drive shaft 123. The rotor housing 121 has multiple heat dissipation holes 124 arranged in a ring array around the central axis of the rotor housing 121. Compared to traditional internal rotor motors, this external rotor design can deliver greater torque output and reduce heat generation under high loads, thus improving the motor's operating efficiency.

[0060] The transmission mechanism 2 employs two speed reduction modules 21 connected in series. It consists of a first rotating wheel 211 and a second rotating wheel 212. The second rotating wheel 212 is connected to the output end of the motor body 1, while the first rotating wheel 211 is connected to the second rotating wheel 212 via a first transmission belt 213. The diameter of the second rotating wheel 212 is smaller than that of the first rotating wheel 211 to achieve a speed reduction and torque increase effect. Furthermore, this invention includes multiple speed reduction modules 21 in the transmission mechanism 2, connected in series. Specifically, the first rotating wheel 211 of one speed reduction module 21 is connected to the second rotating wheel 212 of another speed reduction module 21, further reducing the output speed and increasing torque. Both the first rotating wheel 211 and the second rotating wheel 212 use a pulley structure and transmit power via the first transmission belt 213. This multi-stage speed reduction transmission method significantly improves the energy efficiency of the treadmill, reduces power loss during direct motor drive, reduces noise from high-speed motor rotation, and extends the service life.

[0061] To address the noise and stability issues caused by motor vibration during treadmill operation, this invention incorporates a buffer pad 5 between the first connecting member 3 and the second connecting member 4. The buffer pad 5 is integrally molded from silicone material and features a wave-like or honeycomb structure on its surface to enhance vibration absorption. Compared to traditional rubber pads or rigid installation methods, this structure more effectively buffers the vibrations generated during high-speed motor operation, reduces resonance, and improves the overall stability of the treadmill.

[0062] To optimize installation and maintenance, this invention features multiple threaded holes 6 on the first connecting member 3 and the second connecting member 4 for accommodating external bolts, allowing for detachable connection via external bolts and facilitating future replacement and maintenance. Furthermore, multiple first strip-shaped holes 7 are provided on the central connecting plate 32, arranged in a rectangular array on the side of the central connecting plate 32 furthest from the motor body 1. These strip-shaped holes optimize ventilation and heat dissipation while reducing material usage and improving the overall lightweight design. The first connecting member 3 also features a first opening 8 that penetrates the central connecting plate 32 and any one of the support plates 31, ensuring the integrity and stability of the structure.

[0063] The entire first connector 3 is a one-piece structure, in which the central connecting plate 32 and the support plate 31 are arranged perpendicularly to each other. The support plate 31 also has multiple second strip holes 311 for external bolts to pass through, allowing it to be detachably connected to the treadmill frame via external bolts. Compared with the existing welding fixing method, this structure provides a more flexible installation solution, which not only improves stability but also facilitates disassembly and replacement.

[0064] In one alternative embodiment of this utility model, when the motor power is depleted, the transmission mechanism 2 can be reverse-driven by the user's movement on the treadmill belt, so that the original deceleration module 21 is converted into an acceleration module during reverse transmission, thereby driving the rotor 12 of the motor body 1 to rotate and put it into power generation mode, thereby providing electrical energy to the energy storage unit.

[0065] Specifically, when the first wheel 211 and the second wheel 212 in the transmission mechanism 2 move in opposite directions, they remain connected by the first transmission belt 213, gradually accelerating the low-speed movement of the running belt. This ultimately allows the rotor 12 of the motor body 1 to achieve sufficient speed for power generation. The motor body 1 employs a permanent magnet synchronous motor or a brushless DC motor with bidirectional energy conversion capabilities. When the user runs, causing the rotor 12 to rotate, the motor operates in power generation mode, and the output electrical energy is converted by a rectifier circuit and stored in a battery or used to maintain the basic functions of the device.

[0066] Furthermore, to improve energy utilization efficiency, the transmission mechanism 2 can be further optimized into a reversible planetary gear set or a bidirectional pulley structure to ensure high transmission efficiency when transmitting power in both directions. Compared to the single-stage direct drive or simple reduction system of traditional treadmill motors, this invention adopts a multi-stage transmission and shock absorption structure, which can more effectively reduce energy consumption, reduce vibration, and improve overall service life.

[0067] Specifically, in another embodiment of this utility model, an energy storage system is externally installed on the motor body. This energy storage system can integrate a supercapacitor energy storage unit to store instantaneously generated energy and release it when needed, thereby enhancing the system's stability under low-power conditions. This backup solution can provide emergency power generation when the treadmill's battery is depleted, improving the device's endurance and providing basic power support in specific situations, such as the operation of electronic display modules, low-power lighting, or wireless communication modules, thus enhancing the treadmill's intelligence and adaptability.

[0068] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A structure for a multi-stage transmission energy-saving vibrating external motor for a treadmill, characterized in that: The motor body (1) drives the running belt of the external treadmill to rotate through the transmission mechanism (2), and the connecting structure is used for connecting the motor body (1) and the frame of the external treadmill; the motor body (1) comprises a stator (11) and a rotor (12) arranged in cooperation with the stator (11), and the rotor (12) is drivingly connected with the running belt of the external treadmill to drive the running belt to rotate.

2. The multi-stage transmission energy-saving vibratable outer-rotor motor structure of a walking / running machine according to claim 1, characterized in that: The connecting structure is a double-end support structure, which comprises a support block (91) arranged on the frame (90) of the treadmill, and the two ends of the rotor (12) are rotatably arranged on the support block (91), and the input end of the transmission mechanism (2) is connected with any one end of the rotor (12).

3. The multi-stage transmission energy-saving vibratable outer-rotor motor structure of a walking / running machine according to claim 1, characterized in that: The connecting structure is a single-end fixed structure, which comprises a first connecting piece (3), the stator (11) is fixedly connected with the frame (90) of the external treadmill through the first connecting piece (3), one end of the rotor (12) is rotatably arranged on the first connecting piece (3), and the other end of the rotor (12) is connected with the running belt (901) of the treadmill through the transmission mechanism (2).

4. The multi-stage transmission energy-saving vibratable outer-rotor motor structure of a walking / running machine according to claim 3, characterized in that: The first connecting piece (3) is arranged in a stepped structure, and at least two support plates (31) with height difference and a middle connecting plate (32) between the two support plates (31) are arranged, the stator (11) of the motor body (1) is connected to the middle connecting plate (32), and the two support plates (31) are used to connect with the frame (90) of the external treadmill.

5. The multi-stage transmission energy-saving vibratable outer-rotor motor structure of a walking / running machine according to claim 3, characterized in that: When the connecting structure is a single-end fixed structure, the single-end fixed structure further comprises a second connecting piece (4), the second connecting piece (4) comprises a mounting plate (41) and a shaft sleeve (42) arranged on the mounting plate (41), the stator (11) of the motor body (1) is fixedly connected with the shaft sleeve (42), the rotor (12) of the motor body (1) is rotatably arranged on the shaft sleeve (42) through a bearing (125), and the mounting plate (41) is fixedly connected with the first connecting piece (3).

6. The structure of the multi-stage transmission energy-saving vibratable outer-rotor motor of the walking and running machine according to claim 1, characterized in that: The rotor (12) of the motor body (1) comprises a rotor shell (121), a plurality of magnetic elements (122) arranged on the inner side of the rotor shell (121), and a driving shaft (123) connected with the rotor shell (121), the driving shaft (123) is used for driving the running belt (901) of the treadmill to rotate, the driving shaft (123) is rotatably arranged relative to the frame (90) of the treadmill through the connecting structure, the stator (11) comprises a stator core (111) and a coil wound on the stator core (111), and the rotor shell (121) is rotatably arranged on the outer side of the stator core (111) through the driving shaft (123).

7. The multi-stage transmission energy-saving vibratable outer-rotor electric machine structure of a walking / running machine according to claim 6, characterized in that: The motor body (1) further comprises a heat dissipation fan (120) which is mounted in cooperation with the rotor housing (121), the heat dissipation fan (120) comprising an outer ring body (1201) connected with the rotor housing (121), an inner ring body (1202) connected with the driving shaft (123), and a plurality of fan blades (1203) connected between the outer ring body (1201) and the inner ring body (1202).

8. The structure of the multi-stage transmission energy-saving vibratable outer-rotor motor of the walking and running machine according to claim 1, characterized in that: The transmission mechanism (2) comprises a speed reduction module (21) connected between the motor body (1) and the running belt of the treadmill, the speed reduction module (21) comprising a first rotating wheel (211) and a second rotating wheel (212) which are arranged to rotate relative to the running belt (901) of the treadmill, the first rotating wheel (211) and the second rotating wheel (212) being drivingly connected, the second rotating wheel (212) being configured to be connected with the driving shaft (123) of the motor body (1), the diameter of the second rotating wheel (212) being smaller than that of the first rotating wheel (211), and the second rotating wheel (212) driving the running belt (901) of the treadmill to rotate via the first rotating wheel (211).

9. The multi-stage transmission energy-saving vibratable outer-rotor electric machine structure of a walking / running machine according to claim 8, characterized in that: The speed reduction module (21) is provided in multiple groups, the multiple groups of speed reduction modules (21) being arranged in series with each other, the first rotating wheel (211) of one speed reduction module (21) being connected with the second rotating wheel (212) of another speed reduction module (21), the first rotating wheel (211) and the second rotating wheel (212) being belt wheels, and the first rotating wheel (211) and the second rotating wheel (212) being drivingly connected via a first transmission belt (213).

10. The structure of the multi-stage transmission energy-saving vibratable outer-rotor motor of the walking and running machine according to claim 1, characterized in that: The structure of the outer rotating motor further comprises a reversing driving device connected with the motor body (1), the reversing driving device being configured to drive the rotor member (12) of the motor body (1) to rotate in forward and reverse directions so as to cause the running belt (901) of the treadmill to vibrate; the reversing driving device comprising a frequency converter electrically connected with the stator member (11) of the motor body (1), or an H-bridge circuit electrically connected with the stator member (11) and configured to control the direction of current flowing through the stator member (11), or an electromagnetic clutch and a reversing gear set connected between the rotor member (12) and the running belt.

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