A compact wheel drive device

Abstract

The present invention provides a compact wheel drive device, belonging to the technical field of drive wheel design; comprising a wheel hub, a driven disc fixedly sleeved in the wheel hub, a first end cover and a second end cover fixedly connected to both sides of the driven disc, a connecting disc sleeved in the driven disc, a rotor fixedly sleeved on the side of the connecting disc away from the driven disc, and a stator sleeved in the rotor. The present invention sets a clutch component, a driven disc, a stator, a connecting disc and a rotor. Under normal conditions, the stator is energized and the drive wheel rotates. When the drive wheel loses power, the wheel hub is first stationary, and then the connecting disc and the driven disc can be disconnected through the clutch component to avoid the connecting disc driving the rotor to rotate when the wheel hub is pushed, so that the stator and the rotor generate electricity, forming a short-circuit current, reducing the resistance during the pushing process, reducing the manpower required to push the vehicle forward, and reducing the difficulty of moving the vehicle in the power-deficient state.

Description

Technical Field

[0001] The invention relates to the technical field of drive wheel design, and in particular to a compact wheel drive device. Background Art

[0002] With the development of science and technology, wheel drive devices have gradually entered the field of vehicle drive. The most common ones are wheel hub motors or wheel-side motors. The main difference between the two is the different motor installation positions, but the principles are not substantially different. The drive system of the wheel hub motor forms a part of the wheel hub. It is generally driven by an outer rotor. The wheel hub is connected to the outer rotor drive, and the stator shaft is supported by the flat fork. It is more commonly used in two-wheeled electric vehicles. The wheel hub drive eliminates the drive shaft, differential and other structures, resulting in a compact overall structure and high transmission efficiency.

[0003] However, the hub motor generally adopts a DC motor, so it can be used as a driving motor or an engine. Once the positive and negative poles of the motor are short-circuited, it is equivalent to the motor forming a closed loop, that is, when pushing the electric vehicle, the rotation of the wheel is equivalent to generating electricity, and the short circuit of the positive and negative poles just forms a short-circuit current, so a lot of resistance will be generated at this time. This means that when the vehicle lacks power and cannot effectively drive the hub motor to work, it takes a lot of manpower to push the vehicle forward, which increases the difficulty of moving the vehicle in a power-deficient state. Therefore, the present application provides a compact wheel drive device to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a compact wheel drive device to solve the problem that when the vehicle loses power and cannot effectively drive the hub motor to work, the existing compact wheel drive device needs to overcome the resistance caused by the drive motor generating electricity to push the vehicle forward, resulting in large manpower loss and increasing the difficulty of moving the vehicle in the power-deficient state.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A compact wheel drive device comprises a wheel hub, a driven disk is fixedly sleeved in the wheel hub, a first end cover and a second end cover are fixedly connected on both sides of the driven disk, a connecting disk is sleeved in the driven disk, a rotor is fixedly sleeved on the side of the connecting disk away from the driven disk, a stator is sleeved in the rotor, a same first rotating sleeve is fixedly sleeved in the middle of the driven disk and the second end cover, a same fixed shaft is rotatably sleeved in the middle of the first end cover, the connecting disk and the first rotating sleeve, the stator is fixedly sleeved on the fixed shaft, the stator and the rotor are both located in the driven disk, a clutch component is installed on the first rotating sleeve, and an adjusting component is installed on the fixed shaft; a plurality of first limiting holes are evenly opened in a circumference on one side of the connecting disk, a plurality of second limiting holes matching the positions of the first limiting holes are evenly opened in a circumference on one side of the driven disk, and the second limiting holes penetrate the driven disk.

[0007] Preferably, the clutch component includes a plurality of movable rods slidably sleeved on the first rotating sleeve, and the plurality of movable rods are L-shaped. The movable rods are evenly arranged on the first rotating sleeve in a circle and penetrate the first rotating sleeve. The end of the movable rod away from the first rotating sleeve is fixedly connected with a first adjusting rod, and the two ends of the first adjusting rod are respectively plugged into the first limiting hole and the second limiting hole, and an elastic ring that contacts the connecting disk is fixedly sleeved on the first adjusting rod. The first limiting plate is installed on the first adjusting rod, and weakened inclined surfaces are provided on three sides of the first limiting plate away from the first adjusting rod. The side of the first limiting plate away from the axis of the first adjusting rod is located within the projection range of the second limiting hole in the horizontal direction, and the opposite sides of the second limiting hole are located within the projection range of the weakened inclined surface in the horizontal direction. The ends of the plurality of movable rods away from the first adjusting rod are fixedly connected with the same adjusting ring, and the adjusting component is used to move the adjusting ring to slide axially along the fixed axis under the action of an external force, so that the movable rod drives the first adjusting rod to slide along the axis direction of the first rotating sleeve until it is disengaged from the first limiting hole.

[0008] Preferably, the adjustment ring is located on the side of the second end cover away from the first end cover, and a limiting groove is provided on the outer ring of the adjustment ring; the adjustment component includes a fixing rod fixedly connected to the fixing shaft, and the end of the fixing rod away from the fixing shaft is rotatably connected to the second adjustment rod, one end of the second adjustment rod is located in the limiting groove, the second adjustment rod is an inverted L-shape, and a second spring sheet connected to the fixing rod is fixedly connected to the second adjustment rod.

[0009] Preferably, the clutch component also includes a prism slidably connected to the first adjusting rod and radially penetrating the first adjusting rod along the first adjusting rod, the first limit plate is fixedly connected to the end of the prism away from the axis of the fixed shaft, a counterweight block is arranged in the first limit plate, and the end of the prism away from the first limit plate is fixedly connected to a first spring sheet that interferes with the first adjusting rod, and the prism and the first spring sheet are both located within the projection range of the second limit hole in the horizontal direction; when the wheel hub rotates, the first limit plate moves under the action of centrifugal force, and the side of the first limit plate after movement away from the first adjusting rod is located outside the projection range of the second limit hole in the horizontal direction.

[0010] Preferably, one end of the first adjusting rod close to the connecting disk is provided with a rounded corner.

[0011] Preferably, a ball is rolled in the middle of the rounded corner.

[0012] Preferably, a plurality of weakened grooves are evenly arranged around the outer side of the elastic ring.

[0013] Preferably, one end of the second adjusting rod located in the limiting groove is fixedly sleeved with a rubber sleeve, and the hardness of the rubber sleeve is lower than the hardness of the adjusting ring and the second adjusting rod.

[0014] Preferably, one end of the prism away from the first limiting plate and one end of the fixing rod away from the second adjusting rod are respectively fixedly connected with screws, and nuts are threadedly connected on the screws. The nut on the prism is used to limit the first spring sheet on the prism, and the nut on the fixing rod is used to limit the fixing rod on the fixed shaft.

[0015] Preferably, a second limiting plate adapted to the fixed shaft is fixedly connected to the fixed rod.

[0016] Preferably, grooves are formed at the top and the bottom of the second adjusting rod at a position away from the fixed axis.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting a clutch component, a driven disk, a stator, a connecting disk and a rotor, under normal circumstances, the stator is energized and the driving wheel rotates. When the driving wheel loses power, the wheel hub is first stationary, and then the connecting disk and the driven disk can be disconnected through the clutch component to avoid the connecting disk driving the rotor to rotate when the wheel hub is pushed, so that the stator and rotor generate electricity and form a short-circuit current, thereby reducing the resistance during the pushing process, reducing the manpower required to push the vehicle forward, and reducing the difficulty of moving the vehicle in the power-deficient state.

[0019] By setting a weakened inclined surface, in the process of the first adjusting rod slidingly disengaging from the second limiting hole, the parts with weakened inclined surfaces on both sides of the first limiting plate are elastically deformed by the extrusion at the edge positions on both sides of the second limiting hole. When the first limiting plate is completely moved to the other side of the driven plate after the deformation, the two sides of the first limiting plate recover due to the loss of resistance. At this time, the driven plate is clamped between the first limiting plate and the movable rod, and the first adjusting rod is disconnected from the connecting plate. After the first adjusting rod is disengaged from the connecting plate, the first adjusting rod is prevented from moving axially along the fixed axis due to the influence of the external environment and contacting the first limiting hole during the process of being pushed, causing one end of the first adjusting rod to frequently contact the connecting plate, thereby increasing the wear of the first adjusting rod and the connecting plate, affecting the stability of the synchronous movement between the driven plate, the first adjusting rod and the connecting plate, and ensuring the stability of the separation of the first adjusting rod and the connecting plate.

[0020] By sequentially sleeved the fixed shaft, stator, rotor, connecting plate and driven plate and the clutch component between the driven plate and the connecting plate, the overall compact structural design of the driving wheel is ensured, the space occupied by its axis is reduced, and its convenience of use is improved.

[0021] By setting an adjusting component, when it is necessary to operate the adjusting ring to slide axially along the fixed axis, the second adjusting rod is pressed down, the second adjusting rod is deflected and drives the adjusting ring to slide axially along the fixed axis through the interference with the inner wall of the limiting groove, conversely, the second adjusting rod is reversely deflected and drives the adjusting ring to slide axially along the fixed axis through the interference with the inner wall of the other side of the limiting groove, thereby improving the operation convenience of the adjusting ring. The advantage of such a setting is that when the driving wheel is applied to the two-wheeled electric vehicle, the end of the second adjusting rod away from the fixed rod can extend to the outside of the rear wheel trim panel of the two-wheeled electric vehicle, so that when the rear wheel trim panel of the two-wheeled electric vehicle blocks the wheel axle, the operation difficulty of the adjusting ring is reduced and the operation convenience of the adjusting ring is improved. By setting the second spring sheet, the second adjusting rod can remain relatively stationary without being affected by external force, thereby avoiding the end of the second adjusting rod from contacting with the inner wall of the limiting groove to cause wear, affecting the structural strength of the second adjusting rod and the adjusting ring, and reducing the use stability of the second adjusting rod and the adjusting ring.

[0022] By setting a clutch component, when the driving wheel rotates, under the action of centrifugal force, the counterweight block drives the first limit plate to slide along the length direction of the prism, and gradually moves to outside the horizontal projection range of the second limit hole, so as to avoid the second adjusting rod being accidentally touched by the operator of the two-wheeled electric vehicle during the rotation of the driving wheel, causing the first adjusting rod to disengage from the connecting plate, causing the wheel hub to lose driving force, affecting the normal operation of the driving wheel, and ensuring the driving stability of the driving wheel.

[0023] The weakened groove is provided to improve the elastic deformation capacity of the elastic ring. At the same time, the elastic ring is provided so that when the first adjusting rod returns to the connection with the connecting disk, it can be inserted into the first limiting hole to a deeper depth, so as to provide a sufficient buffer distance for the two sides of the first limiting plate to come out of the second limiting hole after bending and deforming, thereby avoiding the two sides of the first limiting plate from being stuck in the second limiting hole all the time and generating plastic deformation, thereby affecting the normal use of the first limiting plate and the connection stability of the connecting disk, the first adjusting rod and the driven disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a compact wheel drive device;

[0026] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a compact wheel drive device;

[0027] Figure 3 It is a three-dimensional enlarged structural diagram of the fixed shaft, connecting plate and rotor after assembly;

[0028] Figure 4 It is a three-dimensional enlarged structural schematic diagram after the fixed shaft and the driven plate are assembled;

[0029] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the clutch component;

[0030] Figure 6 It is a schematic diagram of the three-dimensional enlarged structure of the adjustment component;

[0031] Figure 7 for Figure 2 The enlarged structural diagram at A in the middle;

[0032] Figure 8 for Figure 5 Enlarged structural diagram at B in the middle.

[0033] [Reference Signs]

[0034] 1. Hub; 2. First end cover; 3. Second end cover; 4. Fixed shaft; 5. Clutch component; 6. Adjustment component; 7. Driven plate; 8. Stator; 9. Connecting plate; 10. Rotor; 11. First rotating sleeve; 12. Adjustment ring; 13. Movable rod; 14. First adjustment rod; 15. Elastic ring; 16. Prism; 17. First limit plate; 18. Weakened inclined surface; 19. First spring piece; 20. First limit hole; 21. Second limit hole; 22. Limit groove; 23. Fillet; 24. Ball; 25. Weakened groove; 26. Fixed rod; 27. Second adjustment rod; 28. Second spring piece; 29. ​​Rubber sleeve; 30. Second limit plate; 31. Screw; 32. Nut.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0036] A compact wheel drive device provided by the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0037] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0038] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0039] It will be understood that the meaning of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, so that “on” means not only “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” means not only “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0040] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0041] like Figure 1-Figure 5 , Figure 7 and Figure 8As shown, an embodiment of the present invention provides a compact wheel drive device, including a wheel hub 1, a tire is fixedly sleeved on the outside of the wheel hub 1, a driven disc 7 is fixedly sleeved on the inside of the wheel hub 1, a first end cover 2 and a second end cover 3 are fixedly connected to the two sides of the driven disc 7, a connecting disc 9 is sleeved inside the driven disc 7, a rotor 10 is fixedly sleeved on the side of the connecting disc 9 away from the driven disc 7, a stator 8 is sleeved inside the rotor 10, a first rotating sleeve 11 is fixedly sleeved on the middle of the driven disc 7 and the second end cover 3, and the middle of the first end cover 2, the connecting disc 9 and the first rotating sleeve 11 are fixedly sleeved. The first rotating sleeve 11 is provided with a clutch component 5, and the fixed shaft 4 is provided with an adjusting component 6; a plurality of first limiting holes 20 are evenly provided on one side of the connecting disk 9 in a circumferential manner, and a plurality of second limiting holes 21 are evenly provided on one side of the driven disk 7 in a circumferential manner, and the second limiting holes 21 penetrate the driven disk 7; the clutch component 5 includes a plurality of movable rods slidably sleeved on the first rotating sleeve 11 13, a plurality of movable rods 13 are L-shaped, and the movable rods 13 are evenly arranged on the first rotating sleeve 11 in a circumferential manner and penetrate the first rotating sleeve 11. The end of the movable rod 13 away from the first rotating sleeve 11 is fixedly connected to the first adjusting rod 14, and the two ends of the first adjusting rod 14 are respectively plugged into the first limiting hole 20 and the second limiting hole 21. The first adjusting rod 14 is fixedly sleeved with an elastic ring 15 that contacts the connecting plate 9, and the first limiting plate 17 is installed on the first adjusting rod 14. The three sides of the first limiting plate 17 away from the first adjusting rod 14 are provided with weakened inclined The first limiting plate 17 is located on the side away from the axis of the first adjusting rod 14 and is located within the horizontal projection range of the second limiting hole 21. The opposite sides of the second limiting hole 21 are located within the horizontal projection range of the weakened inclined surface 18. One end of a plurality of movable rods 13 away from the first adjusting rod 14 is fixedly connected to the same adjusting ring 12. The adjusting component 6 is used to move the adjusting ring 12 to slide axially along the fixed shaft 4 under the action of external force, so that the movable rod 13 drives the first adjusting rod 14 to slide along the axial direction of the first rotating sleeve 11 until it is disengaged from the first limiting hole 20.

[0042] In this embodiment, by setting the clutch component 5, the driven disk 7, the stator 8, the connecting disk 9 and the rotor 10, under normal conditions, the first adjusting rod 14 is plugged into the first limiting hole 20 and the second limiting hole 21. During this process, if the stator 8 is energized, the driving rotor 10 drives the connecting disk 9 to rotate, and the connecting disk 9 drives the hub 1 to rotate through the first adjusting rod 14 and the adjusting ring 12, thereby realizing the rotation of the driving wheel. When the driving wheel loses power, the hub 1 is first made stationary, and the adjusting ring 12 is operated to drive the movable rod axially along the fixed shaft 4 by operating the adjusting component 6. 13 and the first adjusting rod 14 move until the first adjusting rod 14 is disengaged from the first limiting hole 20. At this time, the tire drives the wheel hub 1, the first end cover 2, the second end cover 3 and the driven plate 7 to rotate under the action of the ground friction force, and the driven plate 7 cannot drive the connecting plate 9 to rotate synchronously through the first adjusting rod 14, so as to avoid that when the wheel hub 1 is pushed, the connecting plate 9 drives the rotor 10 to rotate, so that the stator 8 and the rotor 10 generate electricity, forming a short-circuit current, reducing the resistance in the pushing process, reducing the manpower required to push the vehicle forward, and reducing the difficulty of moving the vehicle in the power-deficient state.

[0043] In this embodiment, by providing a weakened inclined surface 18, during the process of the first adjusting rod 14 disengaging from the second limiting hole 21 by sliding, the parts of the first limiting plate 17 with the weakened inclined surfaces 18 on both sides are squeezed at the edge positions on both sides of the second limiting hole 21 to produce elastic deformation. When the first limiting plate 17 after deformation is completely moved to the other side of the driven disk 7, the two sides of the first limiting plate 17 recover due to the loss of resistance. At this time, the driven disk 7 is clamped between the first limiting plate 17 and the movable rod 13, and the first adjusting rod 14 is disconnected from the connecting disk 9. This prevents the first adjusting rod 14 from moving axially along the fixed shaft 4 due to the influence of the external environment and contacting the first limiting hole 20 during the process of the hub 1 being pushed after the first adjusting rod 14 is disconnected from the connecting disk 9, causing one end of the first adjusting rod 14 to frequently contact the connecting disk 9, thereby increasing the wear of the first adjusting rod 14 and the connecting disk 9, affecting the stability of the synchronous movement between the driven disk 7, the first adjusting rod 14 and the connecting disk 9, and ensuring the stability of the separation of the first adjusting rod 14 from the connecting disk 9.

[0044] In this embodiment, by sequentially sleeved fixed shaft 4, stator 8, rotor 10, connecting disk 9 and driven disk 7 and clutch component 5 located between driven disk 7 and connecting disk 9, the overall compact structural design of the driving wheel is ensured, the space occupied by its axis is reduced, and its convenience of use is improved.

[0045] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, in the present embodiment, the adjusting ring 12 is located on the side of the second end cover 3 away from the first end cover 2, and a limiting groove 22 is provided on the outer ring of the adjusting ring 12; the adjusting component 6 includes a fixing rod 26 fixedly connected to the fixing shaft 4, and one end of the fixing rod 26 away from the fixing shaft 4 is rotatably connected to a second adjusting rod 27, one end of the second adjusting rod 27 is located in the limiting groove 22, the second adjusting rod 27 is an inverted L-shape, and a second elastic piece 28 connected to the fixing rod 26 is fixedly connected to the second adjusting rod 27.

[0046] In this embodiment, by setting the adjusting component 6, when it is necessary to operate the adjusting ring 12 to slide axially along the fixed shaft 4, the second adjusting rod 27 is pressed down, the second adjusting rod 27 is deflected and drives the adjusting ring 12 to slide axially along the fixed shaft 4 through the interference with the inner wall of the limiting groove 22. On the contrary, the second adjusting rod 27 is reversely deflected and drives the adjusting ring 12 to slide axially along the fixed shaft 4 through the interference with the inner wall of the other side of the limiting groove 22, thereby improving the operation convenience of the adjusting ring 12. The advantage of such a setting is that when the driving wheel is applied to the two-wheeled electric vehicle, the second adjusting rod 27 The end away from the fixing rod 26 can extend to the outside of the rear wheel trim of the two-wheeled electric vehicle, so that when the rear wheel trim of the two-wheeled electric vehicle blocks the wheel axle, the operation difficulty of the adjusting ring 12 is reduced and the operation convenience of the adjusting ring 12 is improved. By setting the second elastic piece 28, the second adjusting rod 27 can remain relatively still without being affected by external force, avoiding the end of the second adjusting rod 27 from contacting the inner wall of the limiting groove 22 to cause wear, affecting the structural strength of the second adjusting rod 27 and the adjusting ring 12, and reducing the use stability of the second adjusting rod 27 and the adjusting ring 12.

[0047] like Figure 7 and Figure 8 As shown, in the present embodiment, the clutch component 5 further includes a prism 16 which is slidably connected to the first adjusting rod 14 and radially penetrates the first adjusting rod 14 along the first adjusting rod 14, a first limiting plate 17 is fixedly connected to the end of the prism 16 away from the axis of the fixed shaft 4, a counterweight block (not shown in the figure) is arranged in the first limiting plate 17, and a first elastic sheet 19 which abuts against the first adjusting rod 14 is fixedly connected to the end of the prism 16 away from the first limiting plate 17, and both the prism 16 and the first elastic sheet 19 are located within the projection range of the second limiting hole 21 in the horizontal direction; when the wheel hub 1 rotates, the first limiting plate 17 moves under the action of centrifugal force, and the side of the first limiting plate 17 after movement away from the first adjusting rod 14 is located outside the projection range of the second limiting hole 21 in the horizontal direction.

[0048] In this embodiment, by setting the clutch component 5, when the driving wheel rotates, under the action of centrifugal force, the counterweight block drives the first limit plate 17 to slide along the length direction of the prism 16, and gradually moves to outside the horizontal projection range of the second limit hole 21, so as to avoid the second adjusting rod 27 being accidentally touched by the operator of the two-wheeled electric vehicle during the rotation of the driving wheel, resulting in the first adjusting rod 14 being separated from the connecting disk 9, causing the wheel hub 1 to lose driving force, affecting the normal operation of the driving wheel, and ensuring the driving stability of the driving wheel. It should be noted that in this process, the first elastic sheet 19 is compressed by force. When the driving wheel stops rotating, the centrifugal force disappears, the first elastic sheet 19 is reset, and the first limit plate 17 is reset through the prism 16. The reset first limit plate 17 conflicts with the first adjusting rod 14, ensuring that when the first adjusting rod 14 needs to be slid to release its connection with the first limit hole 20, the first limit plate 17 is in the initial position.

[0049] like Figure 7 and Figure 8 As shown, in the present embodiment, a rounded corner 23 is provided at one end of the first adjusting rod 14 close to the connecting disk 9. The advantage of such a setting is that when it is necessary to restore the connection between the first adjusting rod 14 and the connecting disk 9, the second adjusting rod 27 is pushed up so that the adjusting ring 12 drives the first adjusting rod 14 to move toward the side close to the connecting disk 9 through the movable rod 13. During this process, the first adjusting rod 14 gradually collides with the side of the connecting disk 9. When the first adjusting rod 14 is concentric with the first limiting hole 20, the end of the first adjusting rod 14 is reduced due to the provision of the rounded corner 23, which improves the fault tolerance rate of the first adjusting rod 14 and the first limiting hole 20 when being plugged in, and improves the convenience of the first adjusting rod 14 and the first limiting hole 20 when being plugged in, and facilitates the rapid restoration of the connection between the driven disk 7, the first adjusting rod 14 and the connecting disk 9. The structure is simple and easy to use.

[0050] like Figure 7 and Figure 8 As shown, in this embodiment, a ball 24 is rolled in the middle of the fillet 23. The advantage of this arrangement is that the sliding friction generated during the contact between the first adjusting rod 14 and the side of the connecting plate 9 is converted into rolling friction, further reducing the wear caused by the contact between the connecting plate 9 and the first adjusting rod 14 and improving its service life.

[0051] like Figure 8As shown, in the present embodiment, a plurality of weakened grooves 25 are evenly arranged on the outer side of the elastic ring 15 in a circumferential shape. The weakened grooves 25 are provided to improve the elastic deformation capacity of the elastic ring 15. At the same time, through the provision of the elastic ring 15, when the first adjusting rod 14 is restored to be connected with the connecting disk 9, it can be inserted into the first limiting hole 20 to a deeper depth to provide a sufficient buffer distance for the first limiting plate 17 to come out of the second limiting hole 21 after bending and deforming on both sides, thereby preventing the first limiting plate 17 from being stuck in the second limiting hole 21 all the time and causing plastic deformation, thereby affecting the normal use of the first limiting plate 17 and the connection stability of the connecting disk 9, the first adjusting rod 14 and the driven disk 7.

[0052] like Figure 6 As shown, in the present embodiment, one end of the second adjusting rod 27 located in the limiting groove 22 is fixedly sleeved with a rubber sleeve 29, and the hardness of the rubber sleeve 29 is lower than that of the adjusting ring 12 and the second adjusting rod 27. By setting the rubber sleeve 29, the advantage of such a setting is that the direct contact between the adjusting ring 12 and the second adjusting rod 27 can be avoided by the contact between the rubber sleeve 29 and the adjusting ring 12, thereby causing the adjusting ring 12 and the second adjusting rod 27 to wear quickly, affecting their structural strength and reducing their service life.

[0053] like Figure 6 and Figure 8 As shown, in the present embodiment, one end of the prism 16 away from the first limiting plate 17 and the other end of the fixing rod 26 away from the second adjusting rod 27 are respectively fixedly connected with a screw 31, and a nut 32 is threadedly connected to the screw 31. The nut 32 on the prism 16 is used to limit the first spring piece 19 on the prism 16, and the nut 32 on the fixing rod 26 is used to limit the fixing rod 26 on the fixing shaft 4. The fixing rod 26 is fixedly connected with a second limiting plate 30 adapted to the fixing shaft 4. The advantage of such a setting is that when installing the driving wheel, after the contact nut 32 and the screw 31 are threadedly connected, the first limiting plate 17 and the prism 16 can be pulled out from the first adjusting rod 14 by moving toward the side away from the axis of the fixing shaft 4, and the first spring piece 19 can be removed simultaneously, or the fixing rod 26 can be removed from the fixing shaft 4. The structure is simple, and the installation convenience of the prism 16 and the fixing rod 26 is improved.

[0054] like Figure 6 As shown, in this embodiment, grooves are provided at the top and bottom of the second adjusting rod 27 away from the fixed axis 4. The advantage of this arrangement is that it improves the limiting effect of the second adjusting rod 27 on the operator's limbs, reduces the slippage of the limbs and the second adjusting rod 27 during operation, and ensures the operational stability of the second adjusting rod 27.

[0055] The technical solution provided by the present invention is to set a clutch component 5, a driven disk 7, a stator 8, a connecting disk 9 and a rotor 10. Under normal conditions, the first adjusting rod 14 is plugged into the first limiting hole 20 and the second limiting hole 21. During this process, if the stator 8 is energized, the driving rotor 10 drives the connecting disk 9 to rotate, and the connecting disk 9 drives the hub 1 to rotate through the first adjusting rod 14 and the adjusting ring 12, thereby realizing the rotation of the driving wheel. When the driving wheel loses power, the hub 1 is first made stationary, and the adjusting ring 12 is driven along the axial direction of the fixed shaft 4 by operating the adjusting component 6. The movable rod 13 and the first adjusting rod 14 move until the first adjusting rod 14 is disengaged from the first limiting hole 20. At this time, the tire drives the wheel hub 1, the first end cover 2, the second end cover 3 and the driven plate 7 to rotate under the action of the ground friction force. The driven plate 7 cannot drive the connecting plate 9 to rotate synchronously through the first adjusting rod 14, so as to avoid that when the wheel hub 1 is pushed, the connecting plate 9 drives the rotor 10 to rotate, so that the stator 8 and the rotor 10 generate electricity, forming a short-circuit current, reducing the resistance during the pushing process, reducing the manpower required to push the vehicle forward, and reducing the difficulty of moving the vehicle in a power-deficient state.

[0056] By setting the weakened inclined surface 18, in the process of the first adjusting rod 14 disengaging from the second limiting hole 21 by sliding, the parts of the first limiting plate 17 with the weakened inclined surfaces 18 on both sides are squeezed by the edge positions on both sides of the second limiting hole 21 to produce elastic deformation. When the first limiting plate 17 after deformation is completely moved to the other side of the driven disk 7, the two sides of the first limiting plate 17 recover due to the loss of resistance. At this time, the driven disk 7 is clamped between the first limiting plate 17 and the movable rod 13, and the first adjusting rod 14 is disconnected from the connecting disk 9, so as to avoid the first adjusting rod 14 from moving axially along the fixed shaft 4 due to the influence of the external environment and contacting the first limiting hole 20 when the hub 1 is pushed after the first adjusting rod 14 is disconnected from the connecting disk 9, causing one end of the first adjusting rod 14 to frequently contact with the connecting disk 9, thereby increasing the wear of the first adjusting rod 14 and the connecting disk 9, affecting the stability of the synchronous movement between the driven disk 7, the first adjusting rod 14 and the connecting disk 9, and ensuring the stability of the separation of the first adjusting rod 14 from the connecting disk 9.

[0057] By sequentially sleeved the fixed shaft 4, stator 8, rotor 10, connecting plate 9 and driven plate 7 and the clutch component 5 located between the driven plate 7 and the connecting plate 9, the overall compact structural design of the driving wheel is ensured, the space occupied by its axis is reduced, and its convenience of use is improved.

[0058] By setting the adjusting component 6, when it is necessary to operate the adjusting ring 12 to slide axially along the fixed shaft 4, the second adjusting rod 27 is pressed down, the second adjusting rod 27 is deflected and drives the adjusting ring 12 to slide axially along the fixed shaft 4 through the interference with the inner wall of the limiting groove 22. On the contrary, the second adjusting rod 27 is reversely deflected and drives the adjusting ring 12 to slide axially in the opposite direction along the fixed shaft 4 through the interference with the inner wall on the other side of the limiting groove 22, thereby improving the operation convenience of the adjusting ring 12. The advantage of such a setting is that when the driving wheel is applied to the two-wheeled electric vehicle, the second adjusting rod 27 is away from the fixed One end of the fixed rod 26 can extend to the outside of the rear wheel trim of the two-wheeled electric vehicle, so that when the rear wheel trim of the two-wheeled electric vehicle blocks the wheel axle, the operation difficulty of the adjustment ring 12 is reduced and the operation convenience of the adjustment ring 12 is improved. By providing the second elastic piece 28, the second adjustment rod 27 can remain relatively still without being affected by external forces, avoiding the end of the second adjustment rod 27 from contacting the inner wall of the limiting groove 22 to cause wear, affecting the structural strength of the second adjustment rod 27 and the adjustment ring 12, and reducing the use stability of the second adjustment rod 27 and the adjustment ring 12.

[0059] By setting the clutch component 5, when the driving wheel rotates, under the action of centrifugal force, the counterweight block drives the first limit plate 17 to slide along the length direction of the prism 16, and gradually moves to outside the horizontal projection range of the second limit hole 21, so as to avoid the second adjusting rod 27 being accidentally touched by the operator of the two-wheeled electric vehicle during the rotation of the driving wheel, causing the first adjusting rod 14 to disengage from the connecting plate 9, causing the wheel hub 1 to lose driving force, affecting the normal operation of the driving wheel, and ensuring the driving stability of the driving wheel.

[0060] The weakened groove 25 is provided to improve the elastic deformation capacity of the elastic ring 15. At the same time, through the provision of the elastic ring 15, when the first adjusting rod 14 is restored to be connected with the connecting disk 9, it can be inserted into the first limiting hole 20 to a deeper depth, so as to provide a sufficient buffer distance for the two sides of the first limiting plate 17 to come out of the second limiting hole 21 after bending and deformation, thereby preventing the two sides of the first limiting plate 17 from being stuck in the second limiting hole 21 all the time and causing plastic deformation, thereby affecting the normal use of the first limiting plate 17 and the connection stability of the connecting disk 9, the first adjusting rod 14 and the driven disk 7.

[0061] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0062] A person skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A compact wheel drive device, characterized in that: include: The hub comprises a driven disk fixedly sleeved in the hub, a first end cover and a second end cover are fixedly connected on both sides of the driven disk, a connecting disk is sleeved in the driven disk, a rotor is fixedly sleeved on the side of the connecting disk away from the driven disk, a stator is sleeved in the rotor, the middle parts of the driven disk and the second end cover are fixedly sleeved with the same first rotating sleeve, the first end cover, the connecting disk and the middle parts of the first rotating sleeve are rotatably sleeved with the same fixed shaft, the stator is fixedly sleeved on the fixed shaft, the stator and the rotor are both located in the driven disk, a clutch component is installed on the first rotating sleeve, and an adjusting component is installed on the fixed shaft; a plurality of first limiting holes are evenly opened in a circumference on one side of the connecting disk, a plurality of second limiting holes that are matched with the positions of the first limiting holes are evenly opened in a circumference on one side of the driven disk, and the second limiting hole passes through the driven disk; the clutch component comprises a plurality of movable rods slidably sleeved on the first rotating sleeve, and the plurality of movable rods are L-shaped, and the movable rods are evenly arranged in a circumference on the first rotating sleeve. The first control rod is a hinged structure that is configured to connect the first and second control rods, and the hinged structure is configured to connect the first and second control rods, and the hinged structure is configured to connect the first and second control rods, wherein the first and second control rods are connected along the hinged structure to form a clockwise rotation.

2. The compact wheel drive device according to claim 1, characterized in that: The adjusting ring is located on the side of the second end cover away from the first end cover, and a limiting groove is provided on the outer ring of the adjusting ring; the adjusting component includes a fixing rod fixedly connected to the fixing shaft, and one end of the fixing rod away from the fixing shaft is rotatably connected to the second adjusting rod, one end of the second adjusting rod is located in the limiting groove, the second adjusting rod is an inverted L-shape, and a second spring sheet connected to the fixing rod is fixedly connected to the second adjusting rod.

3. The compact wheel drive device according to claim 2, characterized in that: The clutch component further comprises a prism slidably connected to the first adjusting rod and radially penetrating the first adjusting rod along the first adjusting rod, the first limiting plate is fixedly connected to an end of the prism away from the axis of the fixed shaft, a counterweight is arranged in the first limiting plate, and an end of the prism away from the first limiting plate is fixedly connected to a first elastic sheet that contacts the first adjusting rod, and the prism and the first elastic sheet are both located within the projection range of the second limiting hole along the horizontal direction; When the wheel hub rotates, the first limiting plate moves due to the centrifugal force, and after the movement, the side of the first limiting plate away from the first adjusting rod is outside the horizontal projection range of the second limiting hole.

4. The compact wheel drive device according to claim 1, characterized in that: One end of the first adjusting rod close to the connecting plate is provided with a rounded corner.

5. The compact wheel drive device according to claim 4, characterized in that: A ball is rollingly sleeved in the middle of the rounded corner.

6. The compact wheel drive device according to claim 2, characterized in that: One end of the second adjusting rod located in the limiting groove is fixedly sleeved with a rubber sleeve, and the hardness of the rubber sleeve is lower than the hardness of the adjusting ring and the second adjusting rod.

7. The compact wheel drive device according to claim 3, characterized in that: One end of the prism away from the first limiting plate and one end of the fixing rod away from the second adjusting rod are respectively fixedly connected with screws, and nuts are threadedly connected to the screws. The nut on the prism is used to limit the first spring sheet on the prism, and the nut on the fixing rod is used to limit the fixing rod on the fixed shaft.

8. The compact wheel drive device according to claim 2, characterized in that: The fixing rod is fixedly connected with a second limiting plate matched with the fixing shaft.

9. The compact wheel drive device according to claim 2, characterized in that: The top and bottom of the second adjusting rod at a position away from the fixed shaft are both provided with grooves.

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