clutch

Abstract

The clutch comprises an input shaft, an output shaft, a driving cog, a driven cog, a cover plate and a slip device, the cover plate, the driven cog and the output shaft surround to form a ring-shaped accommodating space, the slip device is arranged in the accommodating space and comprises a first friction plate, a slip plate, a second friction plate, a center plate and a first elastic member arranged on the outer periphery of the output shaft and abutting against each other in sequence, the first friction plate abuts against the driven cog and is fixed in the circumferential direction relative to the driven cog, the slip plate is fixed in the circumferential direction relative to the output shaft, the second friction plate is fixed in the circumferential direction relative to the center plate, the center plate is fixed in the circumferential direction relative to the driven cog, one end of the first elastic member abuts against the cover plate, and the first friction plate and the center plate rotate to drive the second friction plate to rotate, the slip plate rotates in linkage to drive the output shaft to rotate in response to the rotation of the driven cog.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology, and specifically relates to a clutch. Background Technology

[0002] With environmental issues becoming increasingly prominent, the automotive industry is vigorously developing new energy vehicles to reduce carbon emissions. In the development of new energy vehicles, to achieve higher transmission efficiency, the power transmission path often needs to be changed in real time within the transmission system, requiring a clutch. New energy vehicles place higher demands on clutches, such as fast response, compact structure, smooth engagement, and low cost. Currently available clutches are prone to generating shocks during rapid power switching, reducing passenger comfort. Summary of the Invention

[0003] The purpose of this invention is to solve the problem of shock that easily occurs when a clutch rapidly switches power. This invention provides a clutch that can reduce the shock when the driving and driven gears engage.

[0004] To address the aforementioned technical problems, this invention discloses a clutch, comprising: an input shaft, an output shaft, a driving tooth, and a driven tooth. The first end of the input shaft is disposed opposite to the first end of the output shaft. The driving tooth is disposed around the outer periphery of the first end of the input shaft, and the driven tooth is disposed around the outer periphery of the first end of the output shaft. The driving tooth is movable relative to the input shaft in the axial direction of the input shaft, allowing the driving tooth to engage or disengage with the driven tooth. The clutch further includes:

[0005] A cover plate is located on the side of the driven tooth that is away from the active tooth, and is fixedly connected to the driven tooth. The cover plate, the driven tooth, and the output shaft form an annular receiving space.

[0006] The slipping device is disposed within the accommodating space. The slipping device includes a first friction plate, a slipping plate, a second friction plate, a center plate, and a first elastic member, all disposed on the outer periphery of the output shaft and sequentially abutting against each other from the moving tooth to the cover plate.

[0007] The side of the first friction plate away from the slip plate abuts against the driven tooth, and the first friction plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the slip plate is fixed relative to the output shaft along the circumferential direction of the output shaft; the second friction plate is fixed relative to the center plate along the circumferential direction of the center plate, and the center plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the end of the first elastic member away from the center plate abuts against the cover plate;

[0008] In response to the rotation of the driven tooth, the first friction plate and the center plate rotate, the rotation of the center plate drives the second friction plate to rotate, and the rotation of the first friction plate and the second friction plate are linked to the rotation of the slip plate, which drives the output shaft to rotate.

[0009] By adopting the above technical solution, active and driven toothed gears are set, which makes the radial dimension of the master and slave gears smaller and the torque transmitted when the active and driven toothed gears are engaged.

[0010] Furthermore, by setting up a slippage device, in which the first friction plate, slippage plate, second friction plate, center plate, and first elastic member abut against each other, the side of the first friction plate away from the slippage plate abuts against the driven tooth, and the first friction plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the slippage plate is fixed relative to the output shaft along the circumferential direction of the output shaft; the second friction plate is fixed relative to the center plate along the circumferential direction of the center plate, and the center plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the end of the first elastic member away from the center plate abuts against the cover plate, and the first elastic member restricts the relative movement of the first friction plate, slippage plate, second friction plate, and center plate along the axial direction of the output shaft. After the driving tooth and driven tooth engage, in response to the rotation of the driven tooth, the first friction plate and center plate rotate, and the rotation of the center plate drives the second friction plate to rotate. Through the rotation of the first friction plate and the second friction plate, the slippage plate rotates in conjunction with the rotation of the slippage plate, which drives the output shaft to rotate, thus realizing the power transmission from the input shaft to the output shaft.

[0011] Furthermore, if there is a speed difference between the active and driven tooth clutches when they engage, an impact will occur. The slip plate in the slip device slips between the first and second friction plates (or it can be understood that the slip plate can slide circumferentially along the output shaft relative to the first and second friction plates), which can release and dissipate the impact energy, reduce the impact force when the active and driven tooth clutches engage, and improve the user's riding comfort.

[0012] In addition, one end of the first elastic member abuts against the center plate, and the other end of the first elastic member away from the center plate abuts against the cover plate. When the first elastic member is compressed, it can provide positive pressure in the axial direction of the output shaft and generate frictional force. When the active tooth and the driven tooth engage, an impact is generated. The energy can be released through the frictional torque to reduce the impact.

[0013] According to another specific embodiment of the present invention, in the clutch disclosed in the embodiment of the present invention, a plurality of first positioning members are provided between the first friction plate and the driven tooth, and the plurality of first positioning members are spaced apart along the circumferential direction of the first friction plate to restrict the first friction plate from rotating relative to the driven tooth along the circumferential direction of the driven tooth.

[0014] Multiple second positioning elements are provided between the second friction plate and the center plate, and the multiple second positioning elements are spaced apart along the circumference of the second friction plate to restrict the second friction plate from rotating relative to the center plate along the circumference of the center plate.

[0015] By employing the above technical solution, multiple first positioning elements are spaced apart circumferentially along the first friction plate. This restricts the rotation of the first friction plate relative to the driven tooth along the circumferential direction of the driven tooth, thereby allowing the first friction plate to rotate synchronously with the driven tooth after the driving tooth engages with it. Similarly, multiple second positioning elements are spaced apart circumferentially along the second friction plate. This restricts the rotation of the second friction plate relative to the center plate along the circumferential direction of the center plate, thereby allowing the center plate to rotate after the driving tooth engages with the driven tooth, thus driving the second friction plate to rotate.

[0016] According to another specific embodiment of the present invention, the clutch disclosed in the embodiment of the present invention further includes an output spline, a slip plate is fixed and detachably connected to the output spline, and the output spline is connected to the output shaft spline.

[0017] Using the above technical solution, the slip plate is fixedly and detachably connected to the output spline. The output spline is connected to the output shaft spline. After the active tooth and the driven tooth engage, the slip plate rotates in linkage. The slip plate drives the output shaft to rotate through the output spline.

[0018] According to another specific embodiment of the present invention, the clutch disclosed in the embodiment of the present invention has a slip plate made of stainless steel.

[0019] By adopting the above technical solution, the stainless steel sheet has better toughness and is less likely to break during the slippage process between the first friction plate and the second friction plate. In addition, it is not easy to rust, thereby reducing the replacement cycle of the slippage plate.

[0020] According to another specific embodiment of the present invention, the clutch disclosed in this embodiment further includes an electromagnet, a second elastic member, a attracted member, a positioning cover, and a housing disposed on the outer periphery of the input shaft; wherein,

[0021] The electromagnet is located on the outer periphery of the input shaft and fixed to the inner wall of the housing;

[0022] The first end of the input shaft is provided with a groove. The positioning cover is fixedly and detachably connected to the end of the active toothed tooth facing the driven toothed tooth and covers the groove. The second elastic member is provided in the groove, and one end of the second elastic member abuts against the inner wall of the groove and the other end abuts against the positioning cover.

[0023] The attracted component is fixedly disposed on the outer periphery of the active tooth and is disposed correspondingly to the electromagnet;

[0024] When the electromagnet is energized, it generates electromagnetic force, attracting the attracted component and causing the active tooth to overcome the elastic force of the second elastic component and move towards the electromagnet, thus separating the active tooth from the driven tooth.

[0025] When the electromagnet is de-energized, the active toothed tooth moves towards the driven toothed tooth under the elastic force of the second elastic member until the active toothed tooth and the driven toothed tooth engage.

[0026] By employing the above technical solution, and by setting an electromagnet and a attracted component located on the outer periphery of the active jaw tooth, the axial displacement of the active jaw tooth along the input shaft can be controlled by energizing or de-energizing the electromagnet. This controls the separation or engagement of the active and driven jaw teeth of the clutch, improving the clutch's response speed. Furthermore, since the electromagnet does not need to be constantly energized, the clutch is more energy-efficient. In addition, by setting a second elastic member, one end of which abuts against the inner wall of the groove at the first end of the input shaft, and the other end abutting against the positioning cover, when the electromagnet is de-energized, the active jaw tooth can not only engage with the driven jaw tooth under the elastic force of the second elastic member, but also reduce the axial impact force on the input shaft when the active and driven jaw teeth engage.

[0027] According to another specific embodiment of the present invention, the clutch disclosed in this embodiment of the present invention includes an electromagnet comprising a magnet, an iron core, and an electromagnetic coil; wherein,

[0028] The magnet is located on the outer periphery of the input shaft and fixed to the inner wall of the housing; the iron core is fixedly mounted on the magnet; and the electromagnetic coil is wound around the outer periphery of the iron core.

[0029] Using the above technical solution, the magnet is set on the outer periphery of the input shaft and fixed on the inner wall of the housing; the iron core is fixed on the magnet, and the electromagnetic coil is wound on the outer periphery of the iron core. When the electromagnetic coil is energized, the iron core generates electromagnetic force to attract the attracted component.

[0030] According to another specific embodiment of the present invention, the clutch disclosed in the embodiment of the present invention further includes:

[0031] The support sleeve is mounted on the active jaw tooth via a bearing, allowing the active jaw tooth to rotate relative to the support sleeve; and is fixed to the outer periphery of the support sleeve by the attraction component, and is correspondingly arranged with the iron core.

[0032] A retaining ring is provided on the circumference of the input shaft and abuts against the first end of the bearing. The second end of the bearing abuts against the inner wall of the support sleeve and the outer wall of the active tooth, so as to restrict the movement of the bearing relative to the active tooth along the axial direction of the active tooth.

[0033] In response to the movement of the attracted component toward the iron core, the support sleeve moves toward the iron core, and the linkage bearing and the active tooth move toward the iron core relative to the input shaft in the axial direction of the input shaft.

[0034] By employing the above technical solution, a retaining ring is installed to abut against the first end of the bearing, and the second end of the bearing abuts against the inner wall of the support sleeve and the outer wall of the active jaw tooth. This restricts the movement of the bearing relative to the active jaw tooth along the axial direction of the active jaw tooth. The attracted component is fixed to the outer periphery of the support sleeve and is correspondingly arranged with the iron core. When the electromagnetic coil is energized, the iron core generates electromagnetic force to attract the attracted component. The attracted component moves towards the iron core, the support sleeve moves towards the iron core, and the linkage bearing and the active jaw tooth move relative to the input shaft in the axial direction of the input shaft towards the iron core.

[0035] According to another specific embodiment of the present invention, the clutch disclosed in the embodiment of the present invention has an active toothed clutch connected to an input shaft via a spline, so that the active toothed clutch can move relative to the input shaft in the axial direction of the input shaft.

[0036] According to another specific embodiment of the present invention, the clutch disclosed in this embodiment further includes: an electronic control unit and a displacement sensor communicatively connected to the electronic control unit; wherein...

[0037] The electronic control unit is used to acquire power-on / off commands and control the electromagnet to be energized or de-energized according to the power-on / off commands, thereby controlling the separation or engagement of the active tooth and the driven tooth.

[0038] The displacement sensor is used to acquire the position information of the active tooth clutch and send the position information to the electronic control unit. The electronic control unit receives the position information and determines whether the active tooth clutch and the driven component have completed separation or engagement.

[0039] By adopting the above technical solution, the position information of the active toothed clutch is obtained by setting a displacement sensor. The electronic control unit receives the information and determines the engagement or disengagement state of the active toothed clutch and the driven component based on the position information. This enables the detection of whether the active toothed clutch and the driven toothed clutch have accurately completed the actions corresponding to the power on / off command.

[0040] According to another specific embodiment of the present invention, in the clutch disclosed in the embodiment of the present invention, the displacement sensor is fixed on the active tooth clutch.

[0041] Using the above technical solution, the displacement sensor fixed on the active dental infeed can obtain the position information of the active dental infeed, thereby enabling the monitoring of the engagement or separation state of the active dental infeed and the driven dental infeed.

[0042] The beneficial effects of this invention are:

[0043] The present invention provides a clutch with a driving tooth and a driven tooth, which makes the radial dimension of the master and driven gears smaller and the torque transmitted when the driving tooth and the driven tooth are engaged.

[0044] Furthermore, by setting up a slippage device, in which the first friction plate, slippage plate, second friction plate, center plate, and first elastic member abut against each other, the side of the first friction plate away from the slippage plate abuts against the driven tooth, and the first friction plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the slippage plate is fixed relative to the output shaft along the circumferential direction of the output shaft; the second friction plate is fixed relative to the center plate along the circumferential direction of the center plate, and the center plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the first elastic member restricts the relative movement of the first friction plate, slippage plate, second friction plate, and center plate along the axial direction of the output shaft. After the driving tooth engages with the driven tooth, in response to the rotation of the driven tooth, the first friction plate and the center plate rotate, and the rotation of the center plate drives the second friction plate to rotate. Through the rotation of the first friction plate and the second friction plate, the slippage plate rotates in conjunction with the rotation of the slippage plate, which drives the output shaft to rotate, thus realizing the power transmission from the input shaft to the output shaft.

[0045] In addition, when the active and driven infeeds engage, the slipping plate in the slipping device slips between the first and second friction plates, which can release and dissipate the impact energy, reduce the impact force when the active and driven infeeds engage, and improve the user's riding comfort. Attached Figure Description

[0046] Figure 1 This is a cross-sectional view of the clutch according to an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of the active tooth of the clutch in an embodiment of the present invention;

[0048] Figure 3 for Figure 2 Right view of the active tooth inclination in the diagram;

[0049] Figure 4 for Figure 1 A magnified view of a portion of position A in the diagram;

[0050] Figure 5 This is a connection block diagram of the clutch's electronic control unit, electromagnetic coil, and displacement sensor according to an embodiment of the present invention.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100: Input axis;

[0053] 200: Output shaft;

[0054] 300: Active tooth inclination;

[0055] 400: Driven tooth inclination;

[0056] 500: Cover plate;

[0057] 600: Slip-off device;

[0058] 610: First friction plate; 620: Slip plate; 630: Second friction plate; 640: Center plate; 650: First elastic component; 660: First positioning component; 670: Second positioning component;

[0059] 700: Output spline;

[0060] 800: Electromagnet; 810: Magnet; 820: Iron core; 830: Electromagnetic coil;

[0061] 910: Second elastic component; 920: Attached component; 930: Positioning cover; 940: Support sleeve; 950: Bearing; 960: Snap ring; 970: Displacement sensor. Detailed Implementation

[0062] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0063] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0064] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0065] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0066] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0067] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0068] This invention discloses a clutch, such as... Figure 1 As shown, it includes: an input shaft 100, an output shaft 200, an active dental insert 300, and a driven dental insert 400. The first end of the input shaft 100 is disposed opposite to the first end of the output shaft 200. The active dental insert 300 is disposed around the outer periphery of the first end of the input shaft 100, and the driven dental insert 400 is disposed around the outer periphery of the first end of the output shaft 200. The active dental insert 300 can move relative to the input shaft 100 in the axial direction of the input shaft 100, so that the active dental insert 300 can engage or disengage from the driven dental insert 400.

[0069] In this embodiment, the specific structure of the active dental infeed 300 is as follows: Figure 2 and Figure 3 As shown. The distance that the active tooth infeed 300 moves relative to the input shaft 100 in the axial direction of the input shaft 100 is greater than the engagement length of the active tooth infeed 300 and the driven tooth infeed 400, with a margin of 1 to 2 mm reserved.

[0070] like Figure 1 As shown, the clutch also includes:

[0071] The cover plate 500 is located on the side of the driven tooth 400 away from the active tooth 300 and is fixedly connected to the driven tooth 400. The cover plate 500, the driven tooth 400 and the output shaft 200 form an annular receiving space.

[0072] Slip-off device 600, the slip-off device 600 is disposed within the receiving space, such as Figure 4As shown, the slippage device 600 includes a first friction plate 610, a slippage plate 620, a second friction plate 630, a center plate 640, and a first elastic member 650, all disposed on the outer periphery of the output shaft 200 and sequentially abutting against each other from the movable tooth 400 to the cover plate 500. In this embodiment, the first elastic member 650 can be a spring or a sheet spring, and this embodiment does not impose specific limitations on it. In one specific embodiment, the first elastic member 650 is a diaphragm spring.

[0073] The side of the first friction plate 610 away from the slip plate 620 abuts against the driven tooth 400, and the first friction plate 610 is fixed relative to the driven tooth 400 along the circumferential direction of the driven tooth 400; the slip plate 620 is fixed relative to the output shaft 200 along the circumferential direction of the output shaft 200; the second friction plate 630 is fixed relative to the center plate 640 along the circumferential direction of the center plate 640, and the center plate 640 is fixed relative to the driven tooth 400 along the circumferential direction of the driven tooth 400; the end of the first elastic member 650 away from the center plate 640 abuts against the cover plate 500.

[0074] In response to the rotation of the driven tooth 400, the first friction plate 610 and the center plate 640 rotate. The rotation of the center plate 640 drives the second friction plate 630 to rotate. Through the rotation of the first friction plate 610 and the second friction plate 630, the slip plate 620 rotates, which drives the output shaft 200 to rotate.

[0075] The fixed connection in this embodiment includes, but is not limited to, bolt connections, key connections, and pin connections. This embodiment does not impose specific limitations on these, and those skilled in the art can choose according to their needs. The cover plate 500, the first friction plate 610, the slip plate 620, the second friction plate 630, and the center plate 640 are all annular. In one specific embodiment, the outer periphery of the center plate 640 is connected to the inner wall surface of the driven tooth 400 via a spline to restrict the center plate 640 from rotating relative to the driven tooth 400 circumferentially.

[0076] In this embodiment, the first friction plate 610, the slip plate 620, the second friction plate 630, the center plate 640, and the first elastic member 650 are all disposed on the outer periphery of the output shaft 200 and abut against each other in sequence from the driven tooth 400 to the cover plate 500. The side of the first friction plate 610 away from the slip plate 620 abuts against the driven tooth 400, and the end of the first elastic member 650 away from the center plate 640 abuts against the cover plate 500. The first elastic member 650 can restrict the relative movement of the first friction plate 610, the slip plate 620, the second friction plate 630, and the center plate 640 along the axial direction of the output shaft 200.

[0077] In this embodiment, the power transmission path in the rotation direction is from the input shaft 100 to the active tooth 300, to the driven tooth 400, to the first friction plate 610 and the second friction plate 630, to the slip plate 620, and finally to the output shaft 200.

[0078] By adopting the above technical solution, the active toothed gear 300 and the driven toothed gear 400 are set, which makes the radial dimension of the master and slave gear smaller, and the torque transmitted is greater when the active toothed gear 300 and the driven toothed gear 400 are engaged.

[0079] Furthermore, by providing a slippage device 600, in which the side of the first friction plate 610 away from the slippage plate 620 abuts against the driven tooth 400, and the first friction plate 610 is fixed relative to the driven tooth 400 along the circumferential direction of the driven tooth 400; the slippage plate 620 is fixed relative to the output shaft 200 along the circumferential direction of the output shaft 200; the second friction plate 630 is fixed relative to the center plate 640 along the circumferential direction of the center plate 640, and the center plate 640 is fixed relative to the driven tooth 400 along the circumferential direction of the driven tooth 400; and the first elastic member 650... The first friction plate 610, the slip plate 620, the second friction plate 630, and the center plate 640 are restricted from moving relative to each other along the axial direction of the output shaft 200. After the active jaw tooth 300 and the driven jaw tooth 400 are engaged, in response to the rotation of the driven jaw tooth 400, the first friction plate 610 and the center plate 640 rotate. The rotation of the center plate 640 drives the second friction plate 630 to rotate. Through the rotation of the first friction plate 610 and the second friction plate 630, the slip plate 620 rotates, which drives the output shaft 200 to rotate, thus realizing the power transmission from the input shaft 100 to the output shaft 200.

[0080] Furthermore, if there is a speed difference between the active dental infeeder 300 and the driven dental infeeder 400 when they engage, an impact will occur. The slip plate 620 in the slip device 600 slips between the first friction plate 610 and the second friction plate 630, which can release and consume the impact energy, reduce the impact force when the active dental infeeder 300 and the driven dental infeeder 400 engage, and improve the user's riding comfort.

[0081] In addition, one end of the first elastic member 650 abuts against the center plate 640, and the other end of the first elastic member 650 away from the center plate 640 abuts against the cover plate 500. The first elastic member 650 is compressed between the center plate 640 and the cover plate 500, which can provide positive pressure in the axial direction of the output shaft 200 and generate frictional force. When the active tooth 300 and the driven tooth 400 are engaged, an impact is generated, and the energy can be released by the frictional torque to reduce the impact.

[0082] In one specific implementation, such as Figure 4As shown, a plurality of first positioning elements 660 are provided between the first friction plate 610 and the driven tooth 400, and the plurality of first positioning elements 660 are spaced apart along the circumference of the first friction plate 610 to restrict the first friction plate 610 from rotating relative to the driven tooth 400 along the circumference of the driven tooth 400. In one specific embodiment, the first positioning element 660 is a positioning pin.

[0083] like Figure 4 As shown, a plurality of second positioning elements 670 are provided between the second friction plate 630 and the center plate 640, and the plurality of second positioning elements 670 are spaced apart along the circumference of the second friction plate 630 to restrict the second friction plate 630 from rotating relative to the center plate 640 along the circumference of the center plate 640. In one specific embodiment, the second positioning element 670 is a positioning pin.

[0084] In this embodiment, the number of the first positioning element 660 can be one, two, three, or even more, and the number of the second positioning element 670 can be one, two, three, or even more. This embodiment does not impose specific limitations on this, and those skilled in the art can set it as needed.

[0085] By employing the above technical solution, multiple first positioning elements 660 are spaced apart circumferentially along the first friction plate 610, which can restrict the first friction plate 610 from rotating circumferentially relative to the driven tooth 400. This allows the first friction plate 610 to rotate synchronously with the driven tooth 400 after the active tooth 300 engages with the driven tooth 400. Multiple second positioning elements 670 are spaced apart circumferentially along the second friction plate 630, which can restrict the second friction plate 630 from rotating circumferentially relative to the center plate 640. This allows the active tooth 300 to engage with the driven tooth 400. Since the center plate 640 is fixed relative to the driven tooth 400 circumferentially, the rotation of the driven tooth 400 causes the center plate 640 to rotate, thus driving the second friction plate 630 to rotate.

[0086] In one specific implementation, such as Figure 4 As shown, the clutch also includes an output spline 700, a slip plate 620 fixedly and detachably connected to the output spline 700, and the output spline 700 is spline-connected to the output shaft 200.

[0087] In this embodiment, the fixed and detachable connection includes, but is not limited to, bolt connection and screw connection, and this embodiment does not impose specific limitations on them.

[0088] Using the above technical solution, the slip plate 620 is fixedly and detachably connected to the output spline 700. The output spline 700 is spline-connected to the output shaft 200. After the active tooth 300 and the driven tooth 400 are engaged, the slip plate 620 is rotated in linkage. The slip plate 620 drives the output shaft 200 to rotate through the output spline 700.

[0089] In one specific embodiment, the slip plate 620 is a stainless steel sheet.

[0090] By adopting the above technical solution, the stainless steel sheet has better toughness and is less likely to break during the slippage process between the first friction plate 610 and the second friction plate 630. In addition, it is not easy to rust, thereby reducing the replacement cycle of the slipping plate 620.

[0091] In one specific implementation, such as Figure 1 As shown, the clutch also includes an electromagnet 800, a second elastic member 910, a attracted member 920, a positioning cover 930, and a housing (not shown) disposed on the outer periphery of the input shaft 100; in one specific embodiment, the second elastic member 910 is a spring, and the attracted member 920 is an armature, wherein,

[0092] Electromagnet 800 is located on the outer periphery of input shaft 100 and fixed to the inner wall of housing.

[0093] The first end of the input shaft 100 is provided with a groove. The positioning cover 930 is fixedly and detachably connected to the end of the active tooth 300 facing the driven tooth 400 and covers the groove. The second elastic member 910 is provided in the groove, and one end of the second elastic member 910 abuts against the inner wall of the groove, and the other end abuts against the positioning cover 930.

[0094] The attracted component 920 is fixedly disposed on the outer periphery of the active tooth 300 and is disposed correspondingly to the electromagnet 800.

[0095] When the electromagnet 800 is energized, it generates electromagnetic force, attracting the attracted component 920, which in turn drives the active tooth 300 to overcome the elastic force of the second elastic component 910 and move towards the electromagnet 800, thus separating the active tooth 300 from the driven tooth 400.

[0096] When the electromagnet 800 is de-energized, the active tooth 300 moves toward the driven tooth 400 under the elastic force of the second elastic member 910 until the active tooth 300 and the driven tooth 400 engage.

[0097] By employing the above technical solution, and by setting an electromagnet 800 and a attracted member 920 located on the outer periphery of the active jaw 300, the energization or de-energization of the electromagnet 800 can control the axial displacement of the active jaw 300 along the input shaft 100, thereby controlling the separation or engagement of the active jaw 300 and the driven jaw 400 of the clutch, thus improving the clutch's response speed. Furthermore, since the electromagnet 800 does not need to be constantly energized, this clutch is also more energy-efficient. In addition, by setting a second elastic member 910, one end of which abuts against the inner wall of the groove at the first end of the input shaft 100, and the other end abutting against the positioning cover 930, when the electromagnet 800 is de-energized, the active jaw 300 can not only engage with the driven jaw 400 under the elastic force of the second elastic member 910, but also reduce the axial impact force on the input shaft 100 when the active jaw 300 and the driven jaw 400 engage.

[0098] In one specific implementation, such as Figure 1 As shown, the electromagnet 800 includes a magnet 810, an iron core 820, and an electromagnetic coil 830; wherein,

[0099] A magnet 810 is disposed on the outer periphery of the input shaft 100 and fixed to the inner wall of the housing; an iron core 820 is fixedly disposed on the magnet 810; and an electromagnetic coil 830 is wound around the outer periphery of the iron core 820. It should be noted that, in this embodiment, the electromagnetic coil 830 passes through the magnet 810 and the housing and is connected to the power supply.

[0100] Using the above technical solution, the magnet 810 is disposed on the outer periphery of the input shaft 100 and fixed on the inner wall of the housing; the iron core 820 is fixedly disposed on the magnet 810, and the electromagnetic coil 830 is wound around the outer periphery of the iron core 820. When the electromagnetic coil 830 is energized, the iron core 820 generates electromagnetic force to attract the attracted component 920.

[0101] In one specific implementation, such as Figure 1 As shown, the clutch also includes:

[0102] The support sleeve 940 is mounted on the active tooth 300 via a bearing 950, so that the active tooth 300 is rotatable relative to the support sleeve 940; and is fixed to the outer periphery of the support sleeve 940 by the attraction member 920, and is correspondingly arranged with the iron core 820.

[0103] A retaining ring 960 is disposed on the periphery of the input shaft 100 and abuts against the first end of the bearing 950. The first end of the bearing 950 abuts against the inner wall of the support sleeve 940 and the outer wall of the active tooth 300 to restrict the movement of the bearing 950 relative to the active tooth 300 along the axial direction of the active tooth 300.

[0104] In response to the movement of the attracted component 920 toward the iron core 820, the support sleeve 940 moves toward the iron core 820, and the linkage bearing 950 and the active tooth 300 move toward the iron core 820 relative to the input shaft 100 in the axial direction of the input shaft 100.

[0105] By adopting the above technical solution, by setting a retaining ring 960 to abut against the first end of the bearing 950, and the second end of the bearing 950 abutting against the inner wall of the support sleeve 940 and the outer wall of the active jaw tooth 300, the movement of the bearing 950 relative to the active jaw tooth 300 along the axial direction of the active jaw tooth 300 can be restricted. The attracted component 920 is fixed to the outer periphery of the support sleeve 940 and is correspondingly arranged with the iron core 820. When the electromagnetic coil 830 is energized, the iron core 820 generates electromagnetic force to attract the attracted component 920 to move towards the iron core 820, which in turn moves the support sleeve 940 towards the iron core 820. The bearing 950 and the active jaw tooth 300 move relative to the input shaft 100 in the axial direction of the input shaft 100 towards the iron core 820.

[0106] In one embodiment, the active dental insert 300 is connected to the input shaft 100 via a spline (not shown) so that the active dental insert 300 can move relative to the input shaft 100 in the axial direction of the input shaft 100.

[0107] In one specific implementation, such as Figure 5 As shown, the clutch also includes: an electronic control unit and a displacement sensor 970 communicatively connected to the electronic control unit; wherein

[0108] The electronic control unit is used to acquire power-on / off commands and control the electromagnetic coil 830 in the electromagnet 800 to be energized or de-energized according to the power-on / off commands, thereby controlling the separation or engagement of the active tooth 300 and the driven tooth 400.

[0109] The displacement sensor 970 is used to acquire the position information of the active dental infeeder 300 and send the position information to the electronic control unit. The electronic control unit receives the position information and determines whether the active dental infeeder 300 and the driven dental infeeder 400 have completed separation or engagement.

[0110] By adopting the above technical solution, the position information of the active toothed tooth 300 is obtained by setting the displacement sensor 970. The electronic control unit receives the position information and determines the engagement or disengagement state of the active toothed tooth 300 and the driven toothed tooth 400. This can detect whether the active toothed tooth 300 and the driven toothed tooth 400 have accurately completed the action corresponding to the power on / off command.

[0111] In one embodiment, the displacement sensor 970 is fixed to the active dental infeed 300.

[0112] Using the above technical solution, the displacement sensor 970, fixed on the active dental infeed 300, can obtain the position information of the active dental infeed 300, thereby monitoring the engagement or disengagement state of the active dental infeed 300 and the driven dental infeed 400.

[0113] In this embodiment, the mechanical operation process is as follows: the power transmission path in the rotational direction is from the input shaft 100 to the active jaw 300, to the driven jaw 400, to the first friction plate 610 and the second friction plate 630, to the stainless steel plate, to the output spline 700, and finally to the output shaft 200. The electromagnetic coil 830 is not energized, so no electromagnetic force is generated. Under the action of the second elastic member 910, the active jaw 300 moves relative to the input shaft 100 along the axis of the input shaft 100 towards the driven jaw 400, stably engaging with it to transmit torque. If there is no speed difference between the active jaw 300 and the driven jaw 400, the engagement is smooth and stable without impact. If there is a speed difference between the active jaw 300 and the driven jaw 400, the engagement will produce an impact. In this case, the slip device 600 activates, and the slip plate 620 slips between the first friction plate 610 and the second friction plate 630, releasing and dissipating the impact energy. In addition, when the vehicle is under special conditions such as sudden braking or a sudden change in the road surface friction coefficient (e.g., from asphalt to ice), the transmission system in the vehicle will generate impact torque. At this time, the slip device 600 is activated, and the slip plate 620 slips between the first friction plate 610 and the second friction plate 630 to release energy and protect the transmission system. When the clutch needs to be disengaged, the electromagnetic coil 830 is energized, generating electromagnetic force on the iron core 820, thereby attracting the attracted component 920. This, in turn, drives the active jaw tooth 300 to move away from the driven jaw tooth 400 relative to the input shaft 100 on the axis of the input shaft 100, thus separating it from the driven jaw tooth 400.

[0114] In this embodiment, the control logic includes, for example: Figure 5 As shown, the power supply uses a common 12 / 24V vehicle power supply, which needs to power the electronic control unit, solenoid coil 830, and displacement sensor 970. When the clutch needs to be disengaged, that is, the driving jaw 300 and driven jaw 400 need to separate, the electronic control unit sends a power-on command to the solenoid coil 830, and the solenoid coil 830 is energized according to the power-on command. When the clutch needs to be engaged, that is, the driving jaw 300 and driven jaw 400 need to engage, the electronic control unit sends a power-off command to the solenoid coil 830, and the solenoid coil 830 is de-energized according to the power-off command. The displacement sensor 970 obtains the position information of the driving jaw 300 and feeds it back to the electronic control unit to determine whether the driving jaw 300 and driven jaw 400 have been engaged or disengaged.

[0115] The beneficial effects of this invention are:

[0116] This invention provides a clutch with a driving tooth and a driven tooth, resulting in a smaller radial dimension of the master and driven gears and a larger torque transmitted when the driving tooth and driven tooth engage. A slippage device is incorporated, in which a first friction plate abuts against the driven tooth on its side furthest from the slippage plate, and the first friction plate is fixed relative to the driven tooth along its circumferential direction; the slippage plate is fixed relative to the output shaft along its circumferential direction; a second friction plate is fixed relative to the center plate along its circumferential direction, and the center plate is fixed relative to the driven tooth along its circumferential direction. After the driving tooth and driven tooth engage, in response to the rotation of the driven tooth, the first friction plate and the center plate rotate. The rotation of the center plate drives the second friction plate to rotate. Through the rotation of the first and second friction plates, the slippage plate rotates in conjunction with the rotation of the second friction plate, driving the output shaft to rotate, thus achieving power transmission from the input shaft to the output shaft. In addition, when the active and driven infeeds engage, the slipping plate in the slipping device slips between the first and second friction plates, which can release and dissipate the impact energy, reduce the impact force when the active and driven infeeds engage, and improve the user's riding comfort.

[0117] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A clutch, comprising: The system comprises an input shaft, an output shaft, a driving jaw, and a driven jaw. The first end of the input shaft is disposed opposite to the first end of the output shaft. The driving jaw is arranged around the outer periphery of the first end of the input shaft, and the driven jaw is arranged around the outer periphery of the first end of the output shaft. The driving jaw is movable relative to the input shaft in the axial direction of the input shaft, allowing the driving jaw to engage or disengage with the driven jaw. The clutch further comprises: A cover plate is disposed on the side of the driven tooth that is away from the active tooth and is fixedly connected to the driven tooth. The cover plate, the driven tooth, and the output shaft form an annular receiving space. A slipping device is disposed within the accommodating space. The slipping device includes a first friction plate, a slipping plate, a second friction plate, a center plate, and a first elastic member, all disposed on the outer periphery of the output shaft and sequentially abutting against each other from the driven tooth to the cover plate. The first friction plate abuts against the driven tooth on the side away from the slip plate, and the first friction plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the slip plate is fixed relative to the output shaft along the circumferential direction of the output shaft; the second friction plate is fixed relative to the center plate along the circumferential direction of the center plate, and the center plate is fixed relative to the driven tooth along the circumferential direction of the driven tooth; the end of the first elastic member away from the center plate abuts against the cover plate; In response to the rotation of the driven tooth, the first friction plate and the center plate rotate, the rotation of the center plate drives the second friction plate to rotate, and the rotation of the first friction plate and the second friction plate is linked to the rotation of the slip plate, which in turn drives the output shaft to rotate.

2. The clutch as described in claim 1, characterized in that, A plurality of first positioning elements are provided between the first friction plate and the driven tooth, and the plurality of first positioning elements are spaced apart along the circumference of the first friction plate to restrict the first friction plate from rotating relative to the driven tooth along the circumference of the driven tooth. A plurality of second positioning elements are provided between the second friction plate and the center plate, and the plurality of second positioning elements are spaced apart along the circumference of the second friction plate to restrict the second friction plate from rotating relative to the center plate along the circumference of the center plate.

3. The clutch as described in claim 1, characterized in that, The clutch also includes an output spline, the slip plate is fixedly and detachably connected to the output spline, and the output spline is connected to the output shaft spline.

4. The clutch as described in claim 1, characterized in that, The slip plate is made of stainless steel.

5. The clutch as claimed in claim 1, characterized in that, The clutch further includes an electromagnet, a second elastic member, a attracted member, a positioning cover, and a housing disposed on the outer periphery of the input shaft; wherein, The electromagnet is disposed on the outer periphery of the input shaft and fixed to the inner wall of the housing; The first end of the input shaft is provided with a groove. The positioning cover is fixedly and detachably connected to one end of the active tooth facing the driven tooth and covers the groove. The second elastic member is disposed in the groove, and one end of the second elastic member abuts against the inner wall of the groove and the other end abuts against the positioning cover. The attracted component is fixedly disposed on the outer periphery of the active tooth and is disposed corresponding to the electromagnet; When the electromagnet is energized, it generates an electromagnetic force that attracts the attracted component, causing the active tooth to overcome the elastic force of the second elastic component and move towards the electromagnet, thus separating the active tooth from the driven tooth. When the electromagnet is de-energized, the active toothed tooth moves toward the driven toothed tooth under the elastic force of the second elastic member until the active toothed tooth engages with the driven toothed tooth.

6. The clutch as described in claim 5, characterized in that, The electromagnet includes a magnet, an iron core, and an electromagnetic coil; wherein, The magnet is disposed on the outer periphery of the input shaft and fixed to the inner wall of the housing; the iron core is fixedly disposed on the magnet; the electromagnetic coil is wound around the outer periphery of the iron core.

7. The clutch as claimed in claim 6, characterized in that, The clutch also includes: A support sleeve is mounted on the active jaw tooth via a bearing, allowing the active jaw tooth to rotate relative to the support sleeve; and the attracted component is fixed to the outer periphery of the support sleeve and is correspondingly arranged with the iron core. A retaining ring is disposed on the circumference of the input shaft and abuts against the first end of the bearing. The second end of the bearing abuts against the inner wall of the support sleeve and the outer wall of the active tooth, so as to restrict the movement of the bearing relative to the active tooth along the axial direction of the active tooth. In response to the movement of the attracted component toward the iron core, the support sleeve moves toward the iron core, and the bearing and the active tooth move relative to the input shaft toward the iron core in the axial direction of the input shaft.

8. The clutch as described in any one of claims 1-7, characterized in that, The active dental insert is connected to the input shaft via a spline, so that the active dental insert can move relative to the input shaft in the axial direction of the input shaft.

9. The clutch as described in any one of claims 5-7, characterized in that, The clutch further includes: an electronic control unit and a displacement sensor communicatively connected to the electronic control unit; wherein The electronic control unit is used to acquire power-on / off commands and control the electromagnet to be energized or de-energized according to the power-on / off commands, thereby controlling the separation or engagement of the active tooth and the driven tooth. The displacement sensor is used to acquire the position information of the active dental infeed and send the position information to the electronic control unit. The electronic control unit receives the position information and determines whether the active dental infeed and the driven component have completed separation or engagement.

10. The clutch as claimed in claim 9, characterized in that, The displacement sensor is fixed to the active dental insert.

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