Pedal hub motor

Abstract

The utility model relates to a pedal hub motor, which comprises a rotating shaft, a hub tire assembly, magnetic steel, a stator, a high-temperature wire, a first side cover, a second side cover, a frame, a stator fixing seat and two pedals, the rotating shaft and the hub tire assembly are coaxially arranged, the magnetic steel, the stator, the high-temperature wire, the first side cover and the second side cover are arranged on the inner diameter surface of the hub tire assembly, and the pedal hub motor further comprises a frame, a stator fixing seat and two pedals. The stator is arranged on the stator fixing seat in a sleeving mode, the first side cover is arranged on the stator fixing seat in a sleeving mode and connected to the end face of one side of the hub tire assembly in a pressing mode, and the second side cover is arranged on the rotating shaft in a sleeving mode through the clutch device and connected to the end face of the other side of the hub tire assembly in a pressing mode. The two pedals are connected to the two ends of the rotating shaft respectively and can drive the rotating shaft to rotate, so that the second side cover is driven to rotate through the clutch device, then the hub and tire assembly is driven to rotate, the pedal hub motor is wide in application range and compact in structure, and the purposes that the hub is driven to rotate through foot stepping and the hub is driven to rotate through the motor can be achieved on one hub at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of hub motors, in particular to a pedal hub motor. Background Art

[0002] The wheel hub motor is a wheel-side transmission mechanism designed by integrating the power system, transmission system and brake system.

[0003] There are two main transmission modes for wheel hubs commonly used in the prior art. One is that the motor drives the wheel hub to rotate, and the other is that the chain drive drives the wheel hub to rotate, thereby driving the wheel to rotate. The above two modes have certain limitations in their scope of use. Utility Model Content

[0004] How to realize the transmission of the wheel hub driven by foot and the wheel hub driven by motor on one wheel hub at the same time is a difficulty that needs to be solved. At the same time, optimizing the entire wheel hub motor structure and improving its compactness and reliability also need to be considered. Therefore, according to these problems, the utility model designs a pedal wheel hub motor with a wide range of uses, compact structure, and realizing the transmission of the wheel hub driven by foot and the wheel hub driven by motor on one wheel hub at the same time.

[0005] The utility model is realized through the following technical scheme: a pedal hub motor, comprising a coaxially arranged rotating shaft, a hub tire assembly, a first side cover, a second side cover, a magnetic steel arranged on the inner diameter surface of the hub tire assembly, a stator, and a high-temperature wire connected to the components on the stator.

[0006] In order to simultaneously realize the transmission of the wheel hub driven by pedaling and the wheel hub driven by the motor on one wheel hub, the pedal hub motor also includes a frame, a stator fixing seat, and two pedals. The lower end of the frame has a rotating shaft support part, and the two ends of the rotating shaft are respectively arranged in the rotating shaft support part through a first bearing sleeve, the stator fixing seat is arranged on the rotating shaft through a second bearing and a third bearing sleeve, and has no relative movement with the frame, the stator is arranged on the stator fixing seat, the wheel hub tire assembly is arranged outside the stator, the first side cover is arranged on the stator fixing seat through a fourth bearing sleeve and is tightly connected to one side end face of the wheel hub tire assembly, the second side cover is arranged on the rotating shaft through a clutch device and is tightly connected to the other side end face of the wheel hub tire assembly, the two pedals are respectively connected to the two ends of the rotating shaft and can drive the rotating shaft to rotate, thereby driving the second side cover to rotate through the clutch device, and then driving the wheel hub tire assembly to rotate.

[0007] Furthermore, a wire outlet hole is provided on the stator fixing seat, and the high temperature wire is output from the wire outlet hole. Compared with the traditional method of outputting the wire from the rotating shaft, this wire outlet method is simple to thread and is not easy to be damaged.

[0008] In order to realize the rotation of the wheel hub by pedaling while ensuring the compactness of the structure, the clutch device further includes a one-way bearing, an inner ring connecting key and an outer ring connecting key. The inner ring of the one-way bearing is connected to the rotating shaft through the inner ring connecting key, and the outer ring of the one-way bearing is connected to the second side cover through the outer ring connecting key.

[0009] In order to achieve no relative movement between the stator fixing seat and the frame under the premise of a compact structure, the pedal hub motor is designed with an anti-rotation structure. Specifically, an anti-rotation screw is connected to the stator fixing seat, and an anti-rotation limit plate is provided on the frame corresponding to the position of the anti-rotation screw, which can limit the rotation of the stator fixing seat relative to the frame.

[0010] Preferably, the anti-rotation limiting plate is U-shaped, and its inner surface matches the shape of the anti-rotation screw head. Other forms of anti-rotation structures can also be designed according to actual conditions.

[0011] In order to improve the connection reliability and ensure the reliability of the hub motor operation, further, a stator limit platform is extended on one side of the stator fixing seat away from the axis direction, and one side of the stator is against the stator limit platform. The rotating shaft has a first bearing limit platform and a second bearing limit platform, and a retaining ring groove is opened. The inner diameter surface of the stator fixing seat has a third bearing limit platform, and the outer diameter surface has a fourth bearing limit platform. The outer side of the first side cover extends a fifth bearing limit platform in the axis direction, and the outer side of the second side cover extends a sixth bearing limit platform in the axis direction. The first bearing limit platform can limit the axial movement of the first bearing. The third bearing limit platform and the retaining ring groove can be used in conjunction with the retaining ring to limit the axial movement of the second bearing. The third bearing limit platform and the second bearing limit platform can limit the axial movement of the third bearing. The fourth bearing limit platform and the fifth bearing limit platform can limit the axial movement of the fourth bearing. The second bearing limit platform and the sixth bearing limit platform can limit the axial movement of the one-way bearing.

[0012] The beneficial effects of the utility model are as follows: the pedal hub motor adds a pedal, a shaft and a clutch to the existing hub motor, allowing the shaft to drive the hub through the clutch, thereby realizing two transmission modes of driving the hub by foot and driving the hub by motor on one hub at the same time, breaking the traditional chain drive hub and motor hub and increasing the scope of use; in addition, the pedal hub motor has a compact structure and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1-2 It is a structural schematic diagram of the pedal hub motor of the utility model;

[0014] Figure 3 It is a cross-sectional view of the main part of the pedal hub motor of the utility model;

[0015] Figure 4 for Figure 3 A local enlarged schematic diagram of point A;

[0016] In the figure: 1. rotating shaft; 11. first bearing; 12. first bearing limit platform; 13. second bearing limit platform; 14. retaining ring groove; 2. wheel hub and tire assembly; 3. magnetic steel; 4. stator; 5. first side cover; 51. fourth bearing; 52. fifth bearing limit platform; 6. second side cover; 61. clutch device; 611. one-way bearing; 612. inner ring connecting key; 613. outer ring connecting key; 62. sixth bearing limit platform; 7. frame; 71. rotating shaft support; 72. anti-rotation limit plate; 8. stator fixing seat; 80. wire outlet hole; 81. second bearing; 82. third bearing; 83. anti-rotation screw; 84. stator limit platform; 85. third bearing limit platform; 86. fourth bearing limit platform; 9. pedal; 10. high temperature wire. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] like Figure 1-4 A pedal hub motor shown includes a coaxially arranged rotating shaft 1, a hub tire assembly 2, a magnetic steel 3 arranged on the inner diameter surface of the hub tire assembly 2, a stator 4, a first side cover 5, a second side cover 6, a frame 7, a stator fixing seat 8, two pedals 9, and a high-temperature wire 10 connected to the components on the stator 4. The stator fixing seat 8 is provided with a wire outlet hole 80, and the high-temperature wire 10 is connected to the stator 4.

[0019] The lower end of the frame 7 has a shaft support portion 71, and both ends of the shaft 1 are respectively sleeved in the shaft support portion 71 through a first bearing 11, and the stator fixing seat 8 is sleeved on the shaft 1 through a second bearing 81 and a third bearing 82. An anti-rotation screw 83 is connected to the stator fixing seat 8, and a U-shaped anti-rotation limiting plate 72 is provided on the frame 7 corresponding to the position of the anti-rotation screw 83, and its inner surface is consistent with the shape of the head of the anti-rotation screw 83. The anti-rotation limiting plate 72 can limit the rotation of the stator fixing seat 8 relative to the frame 7.

[0020] The stator 4 is sleeved on the stator fixing seat 8 , and a stator limiting platform 84 is extended on one side of the stator fixing seat 8 away from the axial direction to locate the axial position of the stator 4 .

[0021] The wheel hub and tire assembly 2 is sleeved on the outside of the stator 4, the first side cover 5 is sleeved on the stator fixing seat 8 through the fourth bearing 51 and is tightly connected to one end face of the wheel hub and tire assembly 2, the second side cover 6 is sleeved on the rotating shaft 1 through the clutch device 61 and is tightly connected to the other end face of the wheel hub and tire assembly 2, the clutch device 61 includes a one-way bearing 611, an inner ring connecting key 612 and an outer ring connecting key 613, the inner ring of the one-way bearing 611 is connected to the rotating shaft 1 through the inner ring connecting key 612, and the outer ring of the one-way bearing 611 is connected to the second side cover 6 through the outer ring connecting key 613.

[0022] The two pedals 9 are respectively connected to the two ends of the rotating shaft 1 and can drive the rotating shaft 1 to rotate, thereby driving the second side cover 6 to rotate through the clutch device 61, and further driving the wheel hub tire assembly 2 to rotate.

[0023] The rotating shaft 1 is provided with a first bearing limit platform 12 and a second bearing limit platform 13, and a retaining ring groove 14 is opened. The inner diameter surface of the stator fixing seat 8 is provided with a third bearing limit platform 85, and the outer diameter surface is provided with a fourth bearing limit platform 86. The outer side of the first side cover 5 is provided with a fifth bearing limit platform 52 extending in the axial direction, and the outer side of the second side cover 6 is provided with a sixth bearing limit platform 62 extending in the axial direction. The first bearing limit platform 12 can limit the axial movement of the first bearing 11. The third bearing limit platform 85 and the retaining ring groove 14 can be used in conjunction with the retaining ring to limit the axial movement of the second bearing 81. The third bearing limit platform 85 and the second bearing limit platform 13 can limit the axial movement of the third bearing 82. The fourth bearing limit platform 86 and the fifth bearing limit platform 52 can limit the axial movement of the fourth bearing 51. The second bearing limit platform 13 and the sixth bearing limit platform 62 can limit the axial movement of the one-way bearing 611.

[0024] The pedal wheel hub motor can be applied to various occasions such as electric bicycles and tricycles. The wheel hub tire assembly 2 mainly has two driving modes, one is the power-on mode: under the joint action of the magnetic steel 3, the stator 4 and other electronic components, the wheel hub tire assembly 2 rotates; the other is the pedal mode: the pedal 9 drives the shaft 1 to rotate, thereby driving the second side cover 6 to rotate through the clutch device 61, and then driving the wheel hub tire assembly 2 to rotate. The above two modes are integrated in one wheel hub motor, both of which can realize the driving of the vehicle, increasing the scope of use.

[0025] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A pedal wheel hub motor, comprising a coaxially arranged shaft, a wheel hub tire assembly, a first side cover, a second side cover, a magnetic steel arranged on the inner diameter surface of the wheel hub tire assembly, a stator, and a high temperature wire connected to the components on the stator, characterized in that: The invention also includes a frame, a stator fixing seat, and two pedals. The lower end of the frame has a rotating shaft supporting part, and the two ends of the rotating shaft are respectively sleeved in the rotating shaft supporting part through a first bearing. The stator fixing seat is sleeved on the rotating shaft through a second bearing and a third bearing, and has no relative movement with the frame. The stator is sleeved on the stator fixing seat, and the wheel hub and tire assembly is sleeved outside the stator. The first side cover is sleeved on the stator fixing seat through a fourth bearing and is tightly connected to one side end face of the wheel hub and tire assembly. The second side cover is sleeved on the rotating shaft through a clutch device and is tightly connected to the other side end face of the wheel hub and tire assembly. The two pedals are respectively connected to the two ends of the rotating shaft and can drive the rotating shaft to rotate, thereby driving the second side cover to rotate through the clutch device, and then driving the wheel hub and tire assembly to rotate.

2. The pedal hub motor according to claim 1, characterized in that: The clutch device includes a one-way bearing, an inner ring connecting key and an outer ring connecting key. The inner ring of the one-way bearing is connected to the rotating shaft through the inner ring connecting key, and the outer ring of the one-way bearing is connected to the second side cover through the outer ring connecting key.

3. The pedal hub motor according to claim 1, characterized in that: The stator fixing seat is connected with an anti-rotation screw, and the frame is provided with an anti-rotation limit plate corresponding to the position of the anti-rotation screw, which can limit the rotation of the stator fixing seat relative to the frame.

4. The pedal hub motor according to claim 3, characterized in that: The anti-rotation limiting plate is U-shaped, and its inner surface is consistent with the shape of the head of the anti-rotation screw.

5. The pedal hub motor according to claim 1, characterized in that: A stator limiting platform is extended on one side of the stator fixing seat away from the axis direction, which can locate the axial position of the stator.

6. The pedal hub motor according to claim 2, characterized in that: The rotating shaft is provided with a first bearing limit platform and a second bearing limit platform, and is provided with a retaining ring groove. The inner diameter surface of the stator fixing seat is provided with a third bearing limit platform, and the outer diameter surface is provided with a fourth bearing limit platform. A fifth bearing limit platform is extended on the outer side of the first side cover in the axial direction, and a sixth bearing limit platform is extended on the outer side of the second side cover in the axial direction. The first bearing limit platform can limit the axial movement of the first bearing. The third bearing limit platform and the retaining ring groove can be used in conjunction with the retaining ring to limit the axial movement of the second bearing. The third bearing limit platform and the second bearing limit platform can limit the axial movement of the third bearing. The fourth bearing limit platform and the fifth bearing limit platform can limit the axial movement of the fourth bearing. The second bearing limit platform and the sixth bearing limit platform can limit the axial movement of the one-way bearing.

7. The pedal hub motor according to claim 1, characterized in that: The stator fixing seat is provided with a wire outlet hole, and the high temperature wire is outlet from the wire outlet hole.

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