One-way clutch and two-wheeler

Abstract

The present invention discloses an overrunning clutch and a two-wheeled vehicle. The overrunning clutch includes: a hub provided with a rotating shaft portion and a first ratchet tooth. The outer wall of the rotating shaft portion is provided with a guiding groove, which extends to the end face of the rotating shaft portion and forms a notch at the end face of the rotating shaft portion. The first ratchet teeth are arranged around the rotating shaft portion; a freewheel body is sleeved on the rotating shaft portion. The freewheel body is provided with a guiding block and a second ratchet tooth. The guiding block is arranged on the inner wall of the freewheel body, and the second ratchet tooth is arranged at one end of the freewheel body close to the first ratchet tooth; a locking cover is provided with a guiding surface on the side facing the first ratchet tooth, and the guiding surface is used to guide the guiding block to enter the guiding groove from the notch; wherein, when the freewheel body rotates in the first direction, the guiding surface guides the guiding block to enter the guiding groove, so that the first ratchet tooth meshes with the second ratchet tooth. When the freewheel body rotates in the second direction, the first ratchet tooth is separated from the second ratchet tooth, the guiding block slides out of the guiding groove from the notch and abuts against the guiding surface. The present invention can improve the smoothness of transmission and the reliability of the structure.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and particularly to a one-way clutch and a two-wheeled vehicle. Background Art

[0002] The existing two-wheeled vehicle clutch mainly forms a one-way transmission structure through the cooperation of a hub and a freewheel body. Among them, the pawl is mainly driven by a spring to be clamped with the root of the ratchet tooth, so that the freewheel body can drive the hub to rotate forward. When the freewheel body rotates reversely, the freewheel body drives the ratchet tooth to rotate, and the ratchet tooth compresses the spring to disengage the pawl from the root of the ratchet tooth, so that the freewheel body rotates idly. However, the contact area between the pawl and the ratchet tooth is small, and the impact during meshing is large, and the spring is prone to looseness or fatigue failure, resulting in the failure of meshing between the ratchet tooth and the pawl, causing the two-wheeled vehicle to slip and reducing the reliability of the structure. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a one-way clutch, which can improve the smoothness of transmission and the reliability of the structure.

[0004] The present invention also provides a two-wheeled vehicle having the above one-way clutch.

[0005] The one-way clutch according to the first aspect embodiment of the present invention includes: a hub, provided with a rotating shaft portion and a first ratchet tooth, an outer wall of the rotating shaft portion is provided with a guiding groove, the guiding groove extends to an end surface of the rotating shaft portion and forms a notch at the end surface of the rotating shaft portion, and the first ratchet tooth is arranged around the rotating shaft portion; a freewheel body, sleeved on the rotating shaft portion, the freewheel body is provided with a guiding block and a second ratchet tooth, the guiding block is arranged on an inner wall of the freewheel body, the guiding block can slide along the guiding groove, and the second ratchet tooth is arranged at an end of the freewheel body close to the first ratchet tooth; a locking cover, connected to the rotating shaft portion and arranged at an end far from the first ratchet tooth, a guiding surface is provided on a side of the locking cover facing the first ratchet tooth, and the guiding surface is used for guiding the guiding block to enter the guiding groove from the notch; wherein, when the freewheel body rotates in a first direction, the guiding surface guides the guiding block to enter the guiding groove from the notch, so that the first ratchet tooth meshes with the second ratchet tooth, and when the freewheel body rotates in a second direction, the first ratchet tooth is separated from the second ratchet tooth, and the guiding block slides out of the guiding groove from the notch and abuts against the guiding surface.

[0006] The overrunning clutch according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: Through the cooperation of the guiding groove, the guiding surface and the guiding block, the meshing or separation of the first ratchet tooth and the second ratchet tooth can be realized. The structure is simple, and the transmission smoothness and the reliability of the structure are improved. When the freehub body rotates in the first direction, the guiding surface can guide the guiding block to slide from the notch into the guiding groove, so that the guiding block can slide in the guiding groove, thereby enabling the freehub body to axially move in the direction close to the first ratchet tooth, making the first ratchet tooth mesh with the second ratchet tooth, and further enabling the freehub body to drive the hub to rotate; when the freehub body rotates in the second direction, the guiding block slides in the guiding groove, causing the freehub body to axially move in the direction away from the first ratchet tooth, separating the first ratchet tooth from the second ratchet tooth, and then the guiding block slides out of the guiding groove from the notch and abuts against the guiding surface, thereby enabling the freehub body to rotate idly, realizing the one-way transmission between the freehub body and the hub, being able to reduce the impact during meshing, improving the transmission smoothness, and enhancing the reliability of the structure.

[0007] According to some embodiments of the first aspect of the present invention, the guiding groove is obliquely arranged on the rotating shaft portion.

[0008] According to some embodiments of the first aspect of the present invention, a plurality of guiding grooves are provided, and the plurality of guiding grooves are evenly distributed at intervals along the circumferential direction of the rotating shaft portion.

[0009] According to some embodiments of the first aspect of the present invention, the number of the guiding blocks is equal to the number of the guiding grooves.

[0010] According to some embodiments of the first aspect of the present invention, the guiding block is hemispherical.

[0011] According to some embodiments of the first aspect of the present invention, along the radial direction of the rotating shaft portion, the depth of the guiding groove is greater than the radius of the guiding block.

[0012] According to some embodiments of the first aspect of the present invention, along the circumferential direction of the rotating shaft portion, the width of the guiding groove is greater than the diameter of the guiding block.

[0013] According to some embodiments of the first aspect of the present invention, a guiding portion is provided between the side wall of the guiding groove and the end face of the rotating shaft portion, and the guiding portion is used for guiding the guiding block into the guiding groove.

[0014] According to some embodiments of the first aspect of the present invention, the guiding surface is an arc surface, and along the radial direction of the locking cover, the arc surface is a concave structure.

[0015] According to some embodiments of the first aspect of the present invention, the rotating shaft portion is provided with a connecting block, the connecting block is in threaded connection with the locking cover, and a plurality of torsion holes are formed in the circumferential direction of the end face of the locking cover, and the plurality of torsion holes are used for driving the locking cover to rotate.

[0016] According to some embodiments of the first aspect of the present invention, the first ratchet includes an inclined surface and a clamping surface, and the included angle between the inclined surface and the cross-section of the rotating shaft portion is 10° to 60°.

[0017] According to some embodiments of the first aspect of the present invention, the number of teeth of the first ratchet and the second ratchet is equal.

[0018] A two-wheeled vehicle according to an embodiment of the second aspect of the present invention includes the one-way clutch according to an embodiment of the first aspect of the present invention.

[0019] The two-wheeled vehicle according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: By providing the one-way clutch according to the embodiment of the first aspect of the present invention on the two-wheeled vehicle, the transmission smoothness of the two-wheeled vehicle can be improved, the reliability of the two-wheeled vehicle can be improved, and the use performance of the two-wheeled vehicle can be enhanced.

[0020] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The additional aspects and advantages of the present invention will become apparent and be easily understood in conjunction with the following description of the embodiments with reference to the accompanying drawings, wherein:

[0022] Figure 1 is a schematic diagram of the one-way clutch according to the embodiment of the first aspect of the present invention;

[0023] Figure 2 is a cross-sectional view of the one-way clutch according to the embodiment of the first aspect of the present invention in the front view direction;

[0024] Figure 3 is a schematic diagram of the hub of the one-way clutch according to the embodiment of the first aspect of the present invention;

[0025] Figure 4 is a schematic diagram of the freehub body of the one-way clutch according to the embodiment of the first aspect of the present invention;

[0026] Figure 5 is a schematic diagram of the locking cover of the one-way clutch according to the embodiment of the first aspect of the present invention;

[0027] Figure 6 is an exploded view of the one-way clutch according to the embodiment of the first aspect of the present invention.

[0028] The reference numerals in the drawings are as follows:

[0029] Hub 100, rotating shaft portion 110, guiding groove 111, notch 112, first ratchet 120, inclined surface 121, clamping surface 122, guiding portion 130, connecting block 140;

[0030] Tower base 200, guide block 210, second ratchet 220, keyway 230;

[0031] Locking cover 300, guide surface 310, torsion hole 320. Specific embodiments

[0032] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] The hub tower base structure is a structure that realizes one-way transmission in the transmission of two-wheel vehicles. In the prior art, a combination of ratchets, pawls and springs is used to realize one-way transmission. The pawl is pressed against the ratchet by a spring. When the tower base rotates forward, the spring drives the ratchet to engage with the pawl, so that the pawl can drive the ratchet to rotate. When the tower base rotates backward, the ratchet and the pawl are separated, so that the tower base rotates idly. In the existing hub tower base structure, the number of pawls is small, the contact area between the pawl and the ratchet is small, and the impact borne when the pawl and the ratchet are engaged is large. Moreover, when the tower base rotates idly, the spring drives the pawl to abut against the ratchet, causing the ratchet to continuously push the pawl to collide with the ratchet, which easily leads to fatigue failure of the spring and reduces the reliability of the product.

[0037] Based on this, the present invention provides a one-way clutch and a two-wheel vehicle, which can improve the transmission smoothness and the reliability of the product.

[0038] The following will be described with reference to the drawings:

[0039] Refer toFigures 1 to 3 , the one-way clutch according to the embodiment of the first aspect of the present invention includes: a hub 100, provided with a rotating shaft portion 110 and a first ratchet 120. The outer wall of the rotating shaft portion 110 is provided with a guiding groove 111, the guiding groove 111 extends to the end face of the rotating shaft portion 110 and forms a notch 112 at the end face of the rotating shaft portion 110, and the first ratchet 120 is arranged around the rotating shaft portion 110; a freewheel body 200, sleeved on the rotating shaft portion 110, the freewheel body 200 is provided with a guiding block 210 and a second ratchet 220, the guiding block 210 is arranged on the inner wall of the freewheel body 200, the guiding block 210 can slide along the guiding groove 111, and the second ratchet 220 is arranged at one end of the freewheel body 200 close to the first ratchet 120; a locking cover 300, connected to the rotating shaft portion 110 and arranged at the end far from the first ratchet 120, a guiding surface 310 is arranged on the side of the locking cover 300 facing the first ratchet 120, and the guiding surface 310 is used for guiding the guiding block 210 to enter the guiding groove 111 from the notch 112; wherein, when the freewheel body 200 rotates in the first direction, the guiding surface 310 guides the guiding block 210 to enter the guiding groove 111 from the notch 112, so that the first ratchet 120 meshes with the second ratchet 220. When the freewheel body 200 rotates in the second direction, the first ratchet 120 is separated from the second ratchet 220, the guiding block 210 slides out of the guiding groove 111 from the notch 112 and abuts against the guiding surface 310.

[0040] Through the cooperation of the guiding groove 111, the guiding surface 310 and the guiding block 210, the meshing or separation of the first ratchet 120 and the second ratchet 220 can be realized. The structure of the one-way clutch is simple, and the transmission stability and structural reliability are improved. When the freewheel body 200 rotates in the first direction, the guiding surface 310 can guide the guiding block 210 to slide into the guiding groove 111 from the notch 112, so that the guiding block 210 can slide in the guiding groove 111, thereby enabling the freewheel body 200 to axially move in the direction close to the first ratchet 120, making the first ratchet 120 mesh with the second ratchet 220, and further enabling the freewheel body 200 to drive the hub 100 to rotate; when the freewheel body 200 rotates in the second direction, the guiding block 210 can slide in the guiding groove 111, making the freewheel body 200 axially move in the direction away from the first ratchet 120, separating the first ratchet 120 from the second ratchet 220, then the guiding block 210 slides out of the guiding groove 111 from the notch 112 and abuts against the guiding surface 310, enabling the guiding block 210 to rotate on the guiding surface 310, thereby enabling the freewheel body 200 to rotate idly, realizing the one-way transmission between the freewheel body 200 and the hub 100. By arranging the first ratchet 120 and the second ratchet 220, the impact caused by meshing can be reduced, the transmission smoothness can be improved, and the structural reliability can be improved.

[0041] It should be noted that, referring to Figure 1 and Figure 3, along the axial direction of the rotating shaft portion 110, the height of the guiding groove 111 is greater than the tooth height of the first ratchet 120 and the second ratchet 220, so that when the guiding block 210 moves in the guiding groove 111, the first ratchet 120 and the second ratchet 220 can be engaged or disengaged, avoiding the situation that the first ratchet 120 is still engaged with the second ratchet 220 after the guiding block 210 slides out of the notch 112 from the guiding groove 111. Additionally, the first direction is clockwise rotation around the axis of the tower base 200, and the second direction is counterclockwise rotation around the axis of the tower base 200.

[0042] Referring to Figure 1 and Figure 3 , it can be understood that the guiding groove 111 is inclinedly arranged on the rotating shaft portion 110. The guiding block 210 can slide in the guiding groove 111. By setting the inclined guiding groove 111, the guiding block 210 can slide smoothly in the guiding groove 111, facilitating driving the tower base 200 to move in the axial direction through the guiding block 210, so that the engagement between the first ratchet 120 and the second ratchet 220 is smooth, improving the transmission smoothness. Additionally, the inclined guiding groove 111 is convenient for processing and manufacturing, which can improve the yield rate of the hub 100 and reduce the production cost.

[0043] Among them, the guiding groove 111 can also be spirally arranged on the rotating shaft portion 110, which can improve the smoothness of the movement of the guiding block 210 in the guiding groove 111, enabling the guiding block 210 to slide smoothly in the guiding groove 111.

[0044] It should be noted that referring to Figure 6 , the inclined direction of the guiding groove 111 or the spiral direction of the guiding groove 111 is opposite to the direction of engagement between the first ratchet 120 and the second ratchet 220. Thus, when the tower base 200 rotates in the first direction, the guiding block 210 slides in the guiding groove 111, enabling the first ratchet 120 and the second ratchet 220 to be engaged, avoiding the separation of the first ratchet 120 and the second ratchet 220 when the tower base 200 rotates in the first direction.

[0045] Referring to Figure 1 and Figure 3 , multiple guiding grooves 111 are provided, and the multiple guiding grooves 111 are evenly distributed at intervals along the circumferential direction of the rotating shaft portion 110. By setting multiple guiding grooves 111, when the tower base 200 rotates in the first direction, the guiding block 210 can quickly enter the guiding groove 111 through the notch 112, reducing the idling time of the tower base 200, improving the combination speed of the hub 100 and the tower base 200, and enhancing the performance of the one-way clutch. Additionally, the multiple guiding grooves 111 are evenly distributed at intervals along the circumferential direction of the rotating shaft portion 110, making the mass distribution of the hub 100 uniform, reducing the shaking when the hub 100 rotates, and improving the rotation smoothness.

[0046] Referring to Figure 4 andFigure 6 It can be understood that the number of guiding blocks 210 is equal to the number of guiding grooves 111. The multiple guiding blocks 210 are evenly distributed along the circumferential direction of the tower base 200, so that the mass distribution of the tower base 200 is uniform, enabling the tower base 200 to rotate smoothly on the rotating shaft portion 110, reducing the sway during the rotation of the tower base 200, and improving the stability during the rotation of the tower base 200. By providing multiple guiding blocks 210, the acting force between a single guiding block 210 and the guiding groove 111 can be reduced, thereby reducing the frictional force between the guiding block 210 and the guiding groove 111, enabling the guiding block 210 to slide smoothly in the guiding groove 111, reducing the wear of the guiding block 210 and the guiding groove 111, and extending the service life of the guiding block 210 and the guiding groove 111. The multiple guiding blocks 210 can slide in the multiple guiding grooves 111 respectively, so that the tower base 200 can move smoothly in the axial direction, and the stability of the axial movement of the tower base 200 can be improved. By setting the number of guiding blocks 210 to be equal to the number of guiding grooves 111, one guiding block 210 can correspond to one guiding groove 111, so that when the tower base 200 moves in the axial direction, the multiple guiding blocks 210 can enter the multiple guiding grooves 111 respectively, thereby enabling the guiding block 210 and the guiding groove 111 to be worn evenly, extending the service life of the guiding block 210 and the guiding groove 111, and improving the reliability of the overall structure.

[0047] It should be noted that with reference to Figure 1 and Figure 2 , the multiple guiding blocks 210 can slide in the multiple guiding grooves 111 respectively to drive the tower base 200 to move in the axial direction, so that the first ratchet 120 and the second ratchet 220 are engaged or separated. When the first ratchet 120 and the second ratchet 220 are engaged, the guiding block 210 can be in contact with the side wall of the guiding groove 111 or separated from the side wall of the guiding groove 111. When the guiding block 210 is in contact with the side wall of the guiding groove 111, the guiding block 210 can bear part of the rotational torque to drive the hub 100 to rotate. By providing multiple guiding blocks 210, the load-bearing capacity of the one-way clutch can be increased, and the service performance of the one-way clutch can be improved; when the guiding block 210 is separated from the side wall of the guiding groove 111, the first ratchet 120 and the second ratchet 220 can be closely attached, so that the transmission stability between the first ratchet 120 and the second ratchet 220 can be improved, and the service performance of the one-way clutch can be improved.

[0048] With reference to Figure 2 and Figure 4, it can be understood that the guiding block 210 is hemispherical. The outer shape of the guiding block 210 is hemispherical, which can reduce the contact area between the guiding block 210 and the guiding groove 111, thereby reducing the sliding resistance of the guiding block 210 in the guiding groove 111, enabling the guiding block 210 to slide smoothly in the guiding groove 111, increasing the axial movement speed of the tower base 200, and accelerating the clutch efficiency between the tower base 200 and the flower drum 100. Among them, the hemispherical guiding block 210 can reduce the wear of the guiding block 210, extend the service life of the flower drum 100, and improve the reliability of the product.

[0049] Referring to Figure 2 , it can be understood that along the radial direction of the rotating shaft portion 110, the depth of the guiding groove 111 is greater than the radius of the guiding block 210. The depth of the guiding groove 111 being greater than the radius of the guiding block 210 can prevent the guiding block 210 from contacting the bottom surface of the guiding groove 111. When the guiding block 210 slides in the guiding groove 111, the guiding block 210 contacts the side wall of the guiding groove 111, thereby reducing the frictional force between the guiding block 210 and the guiding groove 111, enabling the guiding block 210 to move smoothly in the guiding groove 111, reducing the wear of the guiding block 210, extending the service life of the guiding block 210, and improving the reliability of the product.

[0050] In addition, by setting the depth of the guiding groove 111 to be greater than the radius of the guiding block 210, the yield rate of the flower drum 100 and the tower base 200 can be improved. When the tower base 200 is installed on the rotating shaft portion 110, the tower base 200 can smoothly fit over the rotating shaft portion 110, preventing the guiding block 210 from getting stuck in the guiding groove 111, improving the assembly efficiency of the tower base 200 and the flower drum 100, and reducing the production cost of the one-way clutch.

[0051] Referring to Figure 6 , it can be understood that along the circumferential direction of the rotating shaft portion 110, the width of the guiding groove 111 is greater than the diameter of the guiding block 210. The width of the guiding groove 111 being greater than the diameter of the guiding block 210 enables the guiding block 210 to contact one side of the guiding groove 111 when the guiding block 210 slides in the guiding groove 111, enabling the guiding block 210 to slide smoothly in the guiding groove 111, preventing the guiding block 210 from getting stuck in the guiding groove 111, improving the movement stability of the guiding block 210, and improving the performance of the one-way clutch.

[0052] Referring to Figure 3 and Figure 6, it can be understood that a guiding portion 130 is provided between the side wall of the guiding groove 111 and the end face of the rotating shaft portion 110. The guiding portion 130 is used to guide the guiding block 210 into the guiding groove 111. By providing the guiding portion 130 between the guiding groove 111 and the end face of the rotating shaft portion 110, a smooth transition can be achieved between the guiding portion 130 and the rotating shaft portion 110. Through the guiding portion 130, the guiding block 210 can be guided into the guiding groove 111, preventing the guiding block 210 from getting stuck on the end face of the rotating shaft portion 110. Through the guiding portion 130, the guiding block 210 can be smoothly slid into the guiding groove 111, reducing the time for the guiding block 210 to rotate idly on the end face of the rotating shaft portion 110, enabling the guiding block 210 to quickly enter the guiding groove 111 through the guidance of the guiding portion 130, reducing the meshing time between the first ratchet 120 and the second ratchet 220, and improving the response speed of the one-way clutch.

[0053] It should be noted that referring to Figure 3 and Figure 6 , when the guiding surface 310 drives the guiding block 210 to move towards the guiding groove 111, the guiding block 210 can quickly enter the guiding groove 111 through the guiding portion 130, reducing the time for the guiding block 210 to rotate idly on the guiding surface 310, enabling the meshing speed between the first ratchet 120 and the second ratchet 220 to be increased, and improving the response speed of the one-way clutch. Among them, the guiding portion 130 can be a rounded corner structure between the side wall of the guiding groove 111 and the end face of the rotating shaft portion 110, or an inclined plate extending from the side wall of the guiding groove 111 towards the end face of the rotating shaft portion 110. By driving the guiding block 210 to move towards the guiding groove 111 through the guiding surface 310, the guiding block 210 can be made to abut against the guiding portion 130, and through the guiding portion 130, the guiding block 210 can smoothly enter the guiding groove 111, improving the response speed of the one-way clutch.

[0054] Referring to Figure 5 and Figure 6, it can be understood that the guiding surface 310 is an arc surface, and along the radial direction of the locking cover 300, the arc surface is a concave structure. When the tower base 200 rotates in the second direction, the guiding block 210 can move towards the direction close to the guiding surface 310, so that along the radial direction of the locking cover 300, the arc surface is a concave structure, and the guiding block 210 can move along the axial direction of the locking cover 300 until the guiding block 210 contacts the guiding surface 310, so that the guiding block 210 can be positioned on the arc surface, reducing the axial movement distance of the guiding block 210 and improving the clutch efficiency between the tower base 200 and the hub 100. When the tower base 200 rotates in the first direction, the guiding block 210 can move along the arc surface towards the guiding groove 111, so that the guiding block 210 can smoothly slide into the guiding groove 111. Through the arc surface, when the tower base 200 rotates in the first direction, the guiding block 210 can smoothly enter the guiding groove 111, avoiding the idling of the guiding block 210 on the guiding surface 310 and improving the response speed of the one-way clutch.

[0055] It should be noted that with reference to Figure 2 and Figure 6 , when the tower base 200 rotates in the second direction, the guiding block 210 can slide in the guiding groove 111 and drive the guiding block 210 to move towards the direction close to the guiding surface 310. Along the radial direction of the locking cover 300, the arc surface is a concave structure. Along the axial direction of the locking cover 300, the diameter of the guiding surface 310 gradually decreases towards the direction close to the hub 100. Through the guiding groove 111, the guiding block 210 can be stably driven on the guiding surface 310, avoiding the guiding block 210 from entering the guiding groove 111, so that the guiding block 210 can stably rotate on the guiding surface 310. When the tower base 200 rotates in the first direction, the guiding block 210 can slide along the arc surface, so that the guiding block 210 can be driven towards the guiding groove 111 through the arc surface, so that the guiding block 210 can enter the guiding groove 111, preventing the guiding block 210 from idling on the guiding surface 310 and improving the response speed of the one-way clutch.

[0056] With reference to Figure 2 and Figure 5, It can be understood that the rotating shaft portion 110 is provided with a connecting block 140, and the connecting block 140 is threadedly connected to the locking cover 300. A plurality of torsion holes 320 are circumferentially formed on the end face of the locking cover 300, and the plurality of torsion holes 320 are used to drive the locking cover 300 to rotate. The locking cover 300 and the connecting block 140 are threadedly connected. By driving the locking cover 300 to rotate, the locking cover 300 can be installed in the connecting block 140. The threaded connection between the locking cover 300 and the connecting block 140 can facilitate the connection of the locking cover 300 and the rotating shaft portion 110, improve the assembly efficiency of the locking cover 300 and the rotating shaft portion 110, and reduce the production cost. At the same time, the threaded connection between the locking cover 300 and the rotating shaft portion 110 can reduce the number of parts and improve the reliability of the one-way clutch. Among them, a plurality of torsion holes 320 are circumferentially formed on the end face of the locking cover 300. Through the torsion holes 320, it is convenient to drive the locking cover 300 to rotate, which can improve the installation efficiency of the locking cover 300 and reduce the production cost.

[0057] Among them, the locking cover 300 can be external threads or internal threads. Correspondingly, the connecting block 140 can be internal threads or external threads, as long as the locking cover 300 can be installed on the connecting block 140.

[0058] It should be noted that referring to Figure 2 and Figure 5 , the tower base 200 is sleeved in the rotating shaft portion 110, and the locking cover 300 is arranged in the rotating shaft portion 110. When installing the locking cover 300, the locking cover 300 needs to be inserted into the tower base 200, and then the locking cover 300 is driven to rotate. In order to facilitate driving the locking cover 300 to rotate, an installation tool can be inserted into the torsion hole 320, and then the installation tool is driven to rotate, so that it can be convenient to drive the locking cover 300 to rotate, so as to facilitate the installation of the locking cover 300 into the rotating shaft portion 110. Among them, the torsion hole 320 can be a through hole, which is convenient for the production and manufacturing of the locking cover 300 and reduces the processing cost of the locking cover 300; the torsion hole 320 can also be a blind hole, so that the installation tool can be stable in the blind hole, which can prevent the installation tool from passing through the locking cover 300 and prevent the installation tool from scratching the hub 100, improving the production quality of the one-way clutch; in addition, the installation tool can be a wrench, as long as it can be inserted into the torsion hole 320 and drive the locking cover 300 to rotate.

[0059] Referring to Figure 3, it can be understood that the first ratchet 120 includes an inclined surface 121 and a clamping surface 122, and the included angle between the inclined surface 121 and the cross-section of the rotating shaft portion 110 is 10° to 60°. When the number of the first ratchets 120 remains unchanged, the larger the included angle between the inclined surface 121 and the cross-section of the rotating shaft portion 110, the larger the area of the clamping surface 122. By increasing the included angle between the inclined surface 121 and the cross-section of the rotating shaft portion 110, the load-bearing capacity of the one-way clutch can be increased, and the service performance of the one-way clutch can be improved.

[0060] Among them, referring to Figure 1 and Figure 3 , when the included angle between the inclined surface 121 and the cross-section of the rotating shaft portion 110 is smaller, the area of the clamping surface 122 is smaller, so that the axial movement distance of the tower base 200 can be reduced to achieve the engagement or separation of the first ratchet 120 and the second ratchet 220, and the clutch efficiency of the one-way clutch can be improved; in addition, the outer shapes of the first ratchet 120 and the second ratchet 220 are the same, so that the first ratchet 120 can smoothly engage with the second ratchet 220, and the connection stability between the first ratchet 120 and the second ratchet 220 can be improved.

[0061] Referring to Figure 1 , it can be understood that the number of teeth of the first ratchet 120 and the second ratchet 220 is equal. By setting the number of teeth of the first ratchet 120 and the second ratchet 220 to be equal, the tower base 200 and the hub 100 can be tightly connected through the first ratchet 120 and the second ratchet 220, and the transmission quality and smoothness between the tower base 200 and the hub 100 can be improved.

[0062] It should be noted that referring to Figure 1 , the more teeth the first ratchet 120 and the second ratchet 220 have, the smaller the idle stroke of the tower base 200, and the faster the meshing speed of the first ratchet 120 and the second ratchet 220, so that the response speed between the tower base 200 and the hub 100 can be improved. By increasing the number of teeth of the first ratchet 120 and the second ratchet 220, the load-bearing capacity of the first ratchet 120 and the second ratchet 220 can be increased, and the service performance of the one-way clutch can be improved.

[0063] The two-wheeled vehicle according to some embodiments of the second aspect of the present invention includes the one-way clutch according to the embodiments of the present invention. Since it has all the technical features of the one-way clutch according to the embodiments of the present invention, it also has the beneficial effects of all the above embodiments, which will not be repeated here.

[0064] In the related art, the two-wheeled vehicle includes a bicycle, an electric vehicle, a motorcycle, etc. By setting a one-way clutch, the power output by the two-wheeled vehicle can be prevented from driving the wheels to rotate in the reverse direction, and the safety performance of the two-wheeled vehicle can be improved.

[0065] Reference Figure 1 It can be understood that bicycles, electric vehicles, and motorcycles can all output power through the drive assembly, and then transmit the power output by the drive assembly to the wheels through the transmission assembly. The transmission assembly is connected to the wheels through a one-way clutch. Among them, the drive assembly can be a human-powered pedal, an electric motor, or an internal combustion engine. The transmission assembly can be a chain drive, a gear drive, or a belt drive. The chain drive can tension the chain by setting two sprockets. A bicycle can drive the sprocket to rotate by human-powered pedaling, an electric vehicle can drive the sprocket to rotate by an electric motor, and a motorcycle can drive the sprocket to rotate by an internal combustion engine. By driving the chain to move through the sprocket, it can drive another sprocket to rotate, so that the freewheel hub 200 can be driven to rotate through the other sprocket. The hub 100 is connected to the wheel, so that the one-way output of the torque of the drive assembly of the two-wheeled vehicle can be realized, the reverse rotation of the wheel driven by the power output by the drive assembly can be avoided, and at the same time, when the two-wheeled vehicle coasts due to inertia, the wheel can be prevented from outputting torque to the transmission assembly, thereby improving the safety performance of the two-wheeled vehicle.

[0066] Reference Figure 1 As shown in Figure 1 , a plurality of key grooves 230 are formed on the outer wall of the freewheel hub 200. The transmission assembly of the two-wheeled vehicle can drive the freewheel hub 200 to rotate through the key grooves 230, so as to drive the hub 100 to rotate. In addition, the wheels of the two-wheeled vehicle can be connected to the hub 100 through spokes, hubs, etc., so that the hub 100 can drive the wheels to rotate. By providing the key grooves 230 on the freewheel hub 200, it is convenient to connect with the transmission assembly of the two-wheeled vehicle, making the one-way clutch simple and easy to use, and improving the installation convenience of the one-way clutch.

[0067] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. One-way clutch, characterized in that, Comprising: A hub, provided with a rotating shaft portion and a first ratchet. The outer wall of the rotating shaft portion is provided with a guiding groove, the guiding groove extends to the end face of the rotating shaft portion and forms a notch at the end face of the rotating shaft portion, and the first ratchet is arranged around the rotating shaft portion; A freewheel body, sleeved on the rotating shaft portion. The freewheel body is provided with a guiding block and a second ratchet. The guiding block is arranged on the inner wall of the freewheel body, the guiding block can slide along the guiding groove, and the second ratchet is arranged at one end of the freewheel body close to the first ratchet; A locking cover, connected to the rotating shaft portion and arranged at the end away from the first ratchet. A guiding surface is arranged on the side of the locking cover facing the first ratchet, and the guiding surface is used to guide the guiding block to enter the guiding groove from the notch; Wherein, when the freewheel body rotates in the first direction, the guiding surface guides the guiding block to enter the guiding groove from the notch, so that the first ratchet meshes with the second ratchet. When the freewheel body rotates in the second direction, the first ratchet is separated from the second ratchet, and the guiding block slides out of the guiding groove from the notch and abuts against the guiding surface.

2. The one-way clutch according to claim 1, wherein, The guiding groove is inclinedly arranged on the rotating shaft portion.

3. The one-way clutch according to claim 1, characterized in that, There are a plurality of guiding grooves, and the plurality of guiding grooves are evenly distributed at intervals along the circumferential direction of the rotating shaft portion.

4. The one-way clutch according to claim 3, wherein The number of the guiding blocks is equal to the number of the guiding grooves.

5. The one-way clutch according to claim 1, characterized in that, The guiding block is hemispherical.

6. The one-way clutch according to claim 5, characterized in that, Along the radial direction of the rotating shaft portion, the depth of the guiding groove is greater than the radius of the guiding block.

7. The one-way clutch according to claim 5, characterized in that, Along the circumferential direction of the rotating shaft portion, the width of the guiding groove is greater than the diameter of the guiding block.

8. The one-way clutch according to claim 1, characterized in that, A guiding portion is arranged between the side wall of the guiding groove and the end face of the rotating shaft portion, and the guiding portion is used to guide the guiding block to enter the guiding groove.

9. The one-way clutch according to claim 1, characterized in that, The guiding surface is an arc surface, and along the radial direction of the locking cover, the arc surface is a concave structure.

10. The one-way clutch according to claim 1, wherein The rotating shaft portion is provided with a connecting block, the connecting block is threadedly connected with the locking cover, and a plurality of torsion holes are formed in the end face of the locking cover along the circumferential direction, and the plurality of torsion holes are used to drive the locking cover to rotate.

11. The one-way clutch according to claim 1, characterized in that, The first ratchet includes an inclined surface and a clamping surface, and the included angle between the inclined surface and the cross-section of the rotating shaft portion is 10° to 60°.

12. The one-way clutch according to claim 1, wherein The number of teeth of the first ratchet and the second ratchet is equal.

13. Two-wheeled vehicle, characterized in that, Including the one-way clutch according to any one of claims 1 to 12.

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