Motorcycle, engine and clutch covers

Abstract

The present application relates to a motorcycle, an engine and a clutch cover, wherein the clutch cover includes a cover body. The cover body is provided with a shielding portion corresponding to the position of the clutch transmission assembly. The shielding portion includes a main body plate in the shape of a step. A first recessed portion facing away from the clutch transmission assembly is provided in the middle of the inner side wall of the main body plate, and a connecting wall arranged in a ring shape is provided on the bottom wall of the first recessed portion. The connecting wall encloses a mounting hole, and the mounting hole is used to install the transmission shaft of the clutch transmission assembly. The main body plate can increase its own structural strength by adopting a stepped design, so that the position where the mounting hole is located is not easily deformed by force, and the anti-breakage effect is better; in addition, there is no need to increase the thickness of the cover body in the related art to ensure sufficient strength, thereby reducing material costs. In addition, since the connecting wall is connected to the bottom wall of the first recessed portion, the space of the clutch cover is reasonably utilized, the structure is compact, and the overall volume size is not too large.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and in particular to a motorcycle, an engine, and a clutch cover. Background Art

[0002] Motorcycles are two- or three-wheeled vehicles powered by electricity, gasoline, or hybrid power. They are lightweight, flexible, and fast, and are widely used for patrol, passenger and freight transportation, and as sports equipment. Generally speaking, motorcycles are categorized as street bikes, road racing bikes, off-road bikes, cruisers, and touring bikes.

[0003] In the prior art, motorcycle engines are equipped with transmission systems, including but not limited to crankshaft drive gears and continuously variable transmissions (CVTs). Because the drive shaft system transmits driving force to the clutch cover's support bearing holes, insufficient clutch cover strength can easily lead to deformation or damage. Increasing the wall thickness of the clutch cover corresponding to the bearing holes increases product weight and costs. Summary of the Invention

[0004] Based on this, it is necessary to overcome the defects of the prior art and provide a motorcycle, an engine and a clutch cover, which can increase the structural strength and reduce the cost.

[0005] A clutch cover, comprising:

[0006] The cover body is provided with a shielding portion corresponding to the position of the clutch transmission assembly, the shielding portion includes a stepped main plate, the middle part of the inner wall of the main plate is provided with a first recessed portion facing away from the clutch transmission assembly, the bottom wall of the first recess is provided with a connecting wall arranged in a ring shape, the connecting wall encloses a mounting hole, and the mounting hole is used to install the transmission shaft of the clutch transmission assembly.

[0007] In one embodiment, the outer side wall of the main body plate is provided with a second recessed portion facing the clutch transmission assembly; the bottom wall of the first recess and / or the bottom wall of the second recess is provided with at least one reinforcing rib.

[0008] In one embodiment, the main body plate includes a first connecting plate and two second connecting plates respectively connected to opposite sides of the first connecting plate; the distance between the first connecting plate and the bottom wall of the chassis is greater than the distance between the second connecting plate and the bottom wall of the chassis.

[0009] In one embodiment, the reinforcing rib includes at least one first rib connected to the inner side wall of the first connecting plate, and / or at least one second rib connected to the outer side wall of the second connecting plate.

[0010] In one embodiment, the first rib extends from the middle of the main body plate toward the edge of the main body plate; and / or the second rib extends from the middle of the main body plate toward the edge of the main body plate.

[0011] In one embodiment, the first ribs are provided in plurality and are spaced apart from each other; one end of the first rib close to the middle portion of the main body plate is connected to the connecting wall; and / or,

[0012] There are multiple second ribs, which are arranged at intervals; one end of the second rib close to the middle of the main plate is connected to the first connecting plate.

[0013] In one embodiment, the reinforcing rib includes at least one third rib connected to the outer side wall of the second connecting plate, and the third rib is respectively connected to a plurality of the second ribs.

[0014] In one embodiment, the shielding portion further includes a sound insulation member connected to the inner side wall of the main body plate and arranged in a ring shape, and the sound insulation member cooperates with the main body plate to form a sound insulation cover, and the sound insulation cover is used to cover the outside of the clutch transmission assembly.

[0015] An engine includes the clutch cover, a chassis, and a clutch transmission assembly; the clutch transmission assembly is arranged in the chassis, the clutch cover is connected to the chassis, and the shielding portion corresponds to the position of the clutch transmission assembly.

[0016] A motorcycle comprises the engine.

[0017] The motorcycle, engine, and clutch cover described above feature a shielding portion provided on the cover body corresponding to the position of the clutch transmission assembly. The shielding portion comprises a stepped main plate. The stepped design increases the structural strength of the main plate, making the area where the mounting hole is formed less susceptible to deformation under stress, thereby providing improved damage prevention. Furthermore, there is no need to increase the thickness of the cover body to ensure sufficient strength, as in related art, thereby reducing material costs. Furthermore, because the connecting wall is connected to the bottom wall of the first recess, the clutch cover space is effectively utilized, resulting in a compact structure and a reduced overall size. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an engine according to an embodiment of the present application.

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the chassis and clutch transmission assembly in the shown structure.

[0020] Figure 3 for Figure 1 A schematic structural diagram of the clutch cover from one perspective in the structure shown.

[0021] Figure 4 for Figure 1 Schematic diagram of the clutch cover from another perspective in the structure shown.

[0022] Figure 5 for Figure 1 A schematic structural diagram of the clutch cover from another perspective in the structure shown.

[0023] Figure 6 for Figure 1 A schematic structural diagram of the clutch cover in the structure shown from another perspective.

[0024] Figure 7 for Figure 1 Schematic diagram of the cross-sectional structure of the clutch cover in the structure shown.

[0025] Figure 8 This is a structural schematic diagram of a clutch transmission assembly according to an embodiment of the present application in which a transmission shaft is installed in a mounting hole.

[0026] Figure 9 for Figure 8 Schematic diagram of the enlarged structure at point A.

[0027] Figure 10 This is a structural schematic diagram of a clutch transmission assembly according to an embodiment of the present application in which a transmission shaft is installed into a cover body.

[0028] 10. Cover body; 11. Shielding portion; 111. Main plate; 1111. First recess; 1112. Connecting wall; 1113. Mounting hole; 1114. Second recess; 1115. First connecting plate; 1116. Second connecting plate; 1117. First rib; 1118. Second rib; 1119. Third rib; 112. Sound insulation; 20. Clutch transmission assembly; 21. Drive shaft; 22. Bearing; 23. Drive belt; 30. Chassis. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] See Figures 1 to 5 Or see Figures 8 to 10 , Figure 1 A structural schematic diagram of an engine according to an embodiment of the present application is shown. Figure 2 Shown Figure 1 A schematic structural diagram of the chassis 30 and the clutch transmission assembly 20 in the structure shown. Figure 3 Shown Figure 1 A schematic structural diagram of the clutch cover from one perspective in the structure shown. Figure 4 Shown Figure 1 Schematic diagram of the clutch cover from another perspective in the structure shown. Figure 5 Shown Figure 1 A schematic structural diagram of the clutch cover from another perspective in the structure shown. Figure 8 A schematic structural diagram of the transmission shaft 21 of the clutch transmission assembly 20 according to an embodiment of the present application is shown as being installed in the mounting hole 1113 . Figure 9 Shown Figure 8 Schematic diagram of the enlarged structure at point A. Figure 10 A structural schematic diagram shows that the transmission shaft 21 of the clutch transmission assembly 20 of an embodiment of the present application is installed in the cover body 10. An embodiment of the present application provides a clutch cover, which includes a cover body 10. The cover body 10 is provided with a shielding portion 11 corresponding to the position of the clutch transmission assembly 20. The shielding portion 11 includes a stepped main plate 111. A first recess 1111 is provided in the middle of the inner side wall of the main plate 111, which is recessed in a direction away from the clutch transmission assembly 20. A connecting wall 1112 is provided on the bottom wall of the first recess 1111 in a ring shape. The connecting wall 1112 encloses a mounting hole 1113, and the mounting hole 1113 is used to install the transmission shaft 21 of the clutch transmission assembly 20.

[0031] The clutch cover described above has a shielding portion 11 corresponding to the position of the clutch transmission assembly 20 on the cover body 10. The shielding portion 11 includes a stepped main plate 111. The stepped design can increase the structural strength of the main plate 111, making it less likely to deform when the mounting hole 1113 is formed, thereby improving the damage prevention effect. In addition, there is no need to increase the thickness of the cover body 10 as in the related art to ensure sufficient strength, thereby reducing material costs. In addition, because the connecting wall 1112 is connected to the bottom wall of the first recess 1111, the space of the clutch cover is rationally utilized, the structure is compact, and the overall volume size is not too large.

[0032] It should be noted that the "shielding portion 11" can be a "part of the cover body 10", that is, the "shielding portion 11" and the "other parts of the cover body 10" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the cover body 10", that is, the "shielding portion 11" can be manufactured independently and then combined with the "other parts of the cover body 10" into a whole.

[0033] It should be noted that the "connecting wall 1112" can be a "part of the main plate 111", that is, the "connecting wall 1112" and the "other parts of the main plate 111" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the main plate 111", that is, the "connecting wall 1112" can be manufactured independently and then combined with the "other parts of the main plate 111" into a whole.

[0034] In one embodiment, the clutch transmission assembly 20 further includes a bearing 22 disposed inside the mounting hole 1113. The transmission shaft 21 is rotatably connected to the bearing 22. Thus, under the support of the bearing 22, the transmission shaft 21 can rotate stably.

[0035] It should also be noted that the inner wall of the main plate 111 refers to one side of the main plate 111 facing the clutch transmission assembly 20; conversely, the outer wall of the main plate 111 refers to the other side of the main plate 111 facing away from the clutch transmission assembly 20.

[0036] See also Figures 3 to 7 , Figure 6 Shown Figure 1 A schematic structural diagram of the clutch cover in the structure shown from another perspective. Figure 7 Shown Figure 1Schematic diagram of the cross-sectional structure of the clutch cover in the structure shown. In one embodiment, the outer side wall of the main plate 111 is provided with a second recess 1114 recessed in the direction of the clutch transmission assembly 20. The bottom wall of the first recess 1111 and / or the bottom wall of the second recess 1114 is provided with at least one reinforcing rib. In this way, the reinforcing rib can increase the structural strength of the main plate 111, so that the position where the mounting hole 1113 is formed is not easily deformed by force, and the anti-breakage effect is better. In addition, the reinforcing rib is arranged inside the first recess 1111 and the second recess 1114, and does not protrude outward to occupy additional space. The structure is compact, so that the overall volume size does not increase.

[0037] It should be noted that the "reinforcement rib" can be "a part of the main plate 111", that is, the "reinforcement rib" and the "other parts of the main plate 111" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the main plate 111", that is, the "reinforcement rib" can be manufactured independently and then combined with the "other parts of the main plate 111" into a whole.

[0038] It should be noted that the main body plate 111 may have many structural shapes, as long as it is stepped as a whole, and can be flexibly adjusted and configured according to actual needs.

[0039] See also Figures 3 to 7 In one embodiment, the main body plate 111 includes a first connecting plate 1115 and two second connecting plates 1116 respectively connected to the opposite sides of the first connecting plate 1115. The distance between the first connecting plate 1115 and the bottom wall of the chassis 30 is greater than the distance between the second connecting plate 1116 and the bottom wall of the chassis 30. In other words, the first connecting plate 1115 is a stepped high surface, and the second connecting plate 1116 is a stepped bottom surface. In this way, the structural shape of the main body plate 111 is in the shape of high and low steps, which can increase the structural strength of the main body plate 111, so that the location where the mounting hole 1113 is formed is not easily deformed by force, and the anti-breakage effect is better; at the same time, the main body plate 111 is designed into a structural form of a first connecting plate 1115 and two second connecting plates 1116, so that it can be easily processed through integrated pultrusion, die casting, forging and the like.

[0040] See also Figures 3 to 7In one embodiment, the reinforcing ribs include at least one first rib 1117 connected to the inner sidewall of the first connecting plate 1115, and / or at least one second rib 1118 connected to the outer sidewall of the second connecting plate 1116. Thus, the first rib 1117 connected to the first connecting plate 1115 can increase the structural strength of the first connecting plate 1115, and the second rib 1118 connected to the second connecting plate 1116 can increase the structural strength of the second connecting plate 1116, thereby correspondingly increasing the structural strength of the main plate 111. This makes the area where the mounting hole 1113 is formed less prone to deformation under stress, and improves the damage prevention effect.

[0041] It should be noted that the shapes of the first rib 1117 and the second rib 1118 include, but are not limited to, regular shapes such as straight lines, broken lines, and curves, or other irregular shapes, which can be flexibly adjusted and configured according to actual needs. Broken lines include, but are not limited to, Z-shapes, W-shapes, and L-shapes. Curved lines include, but are not limited to, circular arcs, elliptical arcs, and S-shapes.

[0042] See also Figures 3 to 7 In one embodiment, the reinforcing ribs extend from the middle of the main plate 111 toward the edges of the main plate 111, thereby effectively reinforcing the main plate 111. Specifically, the main plate 111 may be circular or elliptical, for example. Furthermore, the reinforcing ribs are arranged radially, or due to manufacturing tolerances, are arranged substantially radially, i.e., are arranged as radial ribs of various regular and irregular shapes.

[0043] See also Figures 3 to 7 In one embodiment, the first rib 1117 extends from the middle of the main body plate 111 toward the edge of the main body plate 111 . In addition, the second rib 1118 extends from the middle of the main body plate 111 toward the edge of the main body plate 111 .

[0044] Optionally, the first ribs 1117 are radially arranged on the main plate 111 , and the second ribs 1118 are radially arranged on the main plate 111 .

[0045] See also Figure 5 and Figure 6 In one embodiment, a plurality of first ribs 1117 are provided, each of which is spaced apart. One end of the first rib 1117, located near the middle of the main plate 111, is connected to the connecting wall 1112. The plurality of first ribs 1117 enhances the structural strength of the main plate 111, making it less susceptible to deformation and damage.

[0046] See also Figure 3 and Figure 4 as well as Figure 7In one embodiment, multiple second ribs 1118 are provided, and the multiple second ribs 1118 are spaced apart. One end of the second rib 1118, located near the middle of the main plate 111, is connected to the first connecting plate 1115. The multiple second ribs 1118 enhance the structural strength of the main plate 111, making it less susceptible to deformation and damage due to stress.

[0047] See also Figures 3 to 7 In one embodiment, a plurality of first ribs 1117 are provided, and the plurality of first ribs 1117 are spaced apart. One end of the first rib 1117 near the middle of the main plate 111 is connected to the connecting wall 1112. Furthermore, a plurality of second ribs 1118 are provided, and the plurality of second ribs 1118 are spaced apart. One end of the second rib 1118 near the middle of the main plate 111 is connected to the first connecting plate 1115.

[0048] Specifically, a plurality of reinforcing ribs formed by a combination of the plurality of first ribs 1117 and the plurality of second ribs 1118 are arranged in sequence at equal intervals around the center of the main body plate 111 .

[0049] In this way, the complementary and opposed rib arrangement inside and outside, as well as the overall reinforcement structure of the entire internal circular shape, can be realized, and the design goal of the clutch cover can be achieved without significantly increasing the thickness of the clutch cover.

[0050] See also Figure 3 、 Figure 4 and Figure 7 In one embodiment, the reinforcing ribs include at least one third rib 1119 connected to the outer sidewall of the second connecting plate 1116. The third ribs 1119 are connected to the plurality of second ribs 1118. Specifically, the third ribs 1119 can be, for example, arc-shaped or elliptical arc-shaped bars disposed around the center of the main plate 111. Thus, the third ribs 1119 can further enhance the structural strength of the main plate 111, making it less susceptible to damage and deformation.

[0051] In related technologies, gear meshing, CVT ratio conversion, and friction from the drive belt 23 (e.g., a belt) generate a series of mechanical noises, which radiate from the engine's transmission chamber to the clutch cover and outward. Because the clutch cover is required to support the gear shafting, bearing mounting structures are required for each shafting system. This causes the shafting noise to be further transmitted to the clutch cover and radiate outward. Furthermore, this deteriorates the operating condition of the gear or CVT transmission system and increases the noise level.

[0052] See also Figure 5 、 Figure 6 、 Figures 8 to 10In one embodiment, the shielding portion 11 further includes a sound insulator 112 connected to the inner sidewall of the main body plate 111 and arranged in a ring-shaped pattern. The sound insulator 112 cooperates with the main body plate 111 to form a soundproof enclosure, which is positioned to cover the exterior of the clutch transmission assembly 20. The sound insulator 112 may include, but is not limited to, soundproof panels, flanges, and other insulating structures. This enclosure not only increases structural strength but also provides sound insulation and noise reduction.

[0053] In one embodiment, the sound insulation member 112 includes but is not limited to regular shapes such as circle, oval or polygon, as well as other irregular shapes. It can be flexibly adjusted and set according to actual needs and is not limited here.

[0054] It should be noted that the "sound insulation member 112" can be "a part of the main body panel 111", that is, the "sound insulation member 112" and the "other parts of the main body panel 111" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the main body panel 111", that is, the "sound insulation member 112" can be manufactured independently and then combined with the "other parts of the main body panel 111" into a whole.

[0055] Specifically, on the periphery of the transmission system or CVT transmission assembly, a complete full-circular sound insulation cover structure is set on the inner side of the clutch cover, and multiple radial first ribs 1117 are set in the front and rear directions of the sound insulation cover to increase the strength and change the shape of the inner wall to avoid the eardrum amplification of large planes or arcs, which amplifies the noise of the transmission system and spreads it outward; in order to achieve a compact structure, the gap between the CVT driven assembly and the clutch cover is small, so radial reinforcement ribs cannot be arranged in the upper and lower directions of the inner wall of the clutch cover. In this embodiment, multiple radial second ribs 1118 are arranged in the upper and lower directions on the outer side of the clutch, and finally multiple radial reinforcement ribs are arranged in the full circumferential direction on the inner and outer sides, which not only increases the supporting strength of the mounting hole 1113, but also eliminates the large plane or arc shape of the corresponding part of the clutch, thereby achieving the design goal and avoiding the problem of weight increase caused by the overall increase in the clutch cover part.

[0056] See also Figures 1 to 10 In one embodiment, an engine includes the clutch cover of any of the above embodiments, a chassis 30, and a clutch transmission assembly 20. The clutch transmission assembly 20 is disposed in the chassis 30, the clutch cover is connected to the chassis 30, and the shielding portion 11 corresponds to the position of the clutch transmission assembly 20.

[0057] In the aforementioned engine, since the cover body 10 is provided with a shielding portion 11 corresponding to the position of the clutch transmission assembly 20, the shielding portion 11 includes a stepped main plate 111. The stepped design can increase the structural strength of the main plate 111, making the location of the mounting hole 1113 less prone to deformation under force, thereby improving the damage prevention effect. In addition, there is no need to increase the thickness of the cover body 10 as in the related art to ensure sufficient strength, thereby reducing material costs. In addition, since the connecting wall 1112 is connected to the bottom wall of the first recess 1111, the space of the clutch cover is rationally utilized, the structure is compact, and the overall volume size is not excessive.

[0058] See also Figures 1 to 10 In one embodiment, a motorcycle includes the engine of any one of the above embodiments.

[0059] In the aforementioned motorcycle, since the cover body 10 is provided with a shielding portion 11 corresponding to the position of the clutch transmission assembly 20, the shielding portion 11 includes a stepped main plate 111. The stepped design increases the structural strength of the main plate 111, making the location of the mounting hole 1113 less susceptible to deformation under stress, thereby providing better damage prevention. Furthermore, there is no need to increase the thickness of the cover body 10 as in the related art to ensure sufficient strength, thereby reducing material costs. Furthermore, since the connecting wall 1112 is connected to the bottom wall of the first recess 1111, the space of the clutch cover is rationally utilized, the structure is compact, and the overall volume is not excessively large.

[0060] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0061] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0062] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0063] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0064] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0065] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A clutch cover, characterized in that: The clutch cover comprises: The cover body is provided with a shielding portion corresponding to the position of the clutch transmission assembly, and the shielding portion includes a stepped main plate, a middle portion of the inner side wall of the main plate is provided with a first recessed portion facing away from the clutch transmission assembly, and a bottom wall of the first recess is provided with a connecting wall arranged in an annular shape, and the connecting wall is surrounded to form a mounting hole, and the mounting hole is used to install the transmission shaft of the clutch transmission assembly; the outer side wall of the main plate is provided with a second recessed portion facing the direction of the clutch transmission assembly; the bottom wall of the first recess and / or the bottom wall of the second recess is provided with at least a reinforcing rib; the main body panel includes a first connecting plate and two second connecting plates respectively connected to opposite sides of the first connecting plate; the distance between the first connecting plate and the bottom wall of the chassis is greater than the distance between the second connecting plate and the bottom wall of the chassis; the reinforcing rib includes at least one first rib connected to the inner side wall of the first connecting plate, and / or at least one second rib connected to the outer side wall of the second connecting plate; the first rib extends from the middle portion of the main body panel toward the edge of the main body panel; and / or the second rib extends from the middle portion of the main body panel toward the edge of the main body panel; The shielding portion further includes a sound insulation member connected to the inner side wall of the main body plate and arranged in a ring shape. The sound insulation member cooperates with the main body plate to form a sound insulation cover, and the sound insulation cover is used to cover the outside of the clutch transmission assembly.

2. The clutch cover according to claim 1, characterized in that There are multiple first ribs, and the multiple first ribs are arranged at intervals.

3. The clutch cover according to claim 1 or 2, characterized in that: One end of the first rib close to the middle portion of the main body plate is connected to the connecting wall.

4. The clutch cover according to claim 1, wherein: There are multiple second ribs, and the multiple second ribs are arranged at intervals.

5. The clutch cover according to claim 1 or 4, characterized in that: One end of the second rib close to the middle portion of the main body plate is connected to the first connecting plate.

6. The clutch cover according to claim 1, wherein: The sound insulation member is a sound insulation board or a flange.

7. The clutch cover according to claim 1, wherein: The reinforcing ribs include at least one third rib connected to the outer side wall of the second connecting plate, and the third ribs are respectively connected to a plurality of the second ribs.

8. The clutch cover according to claim 7, characterized in that The third rib is an arc-shaped bar or an elliptical arc-shaped bar arranged around the center of the main plate.

9. An engine, characterized in that: The engine includes the clutch cover according to any one of claims 1 to 8, and also includes a chassis and a clutch transmission assembly; the clutch transmission assembly is arranged in the chassis, the clutch cover is connected to the chassis, and the shielding portion corresponds to the position of the clutch transmission assembly.

10. A motorcycle, characterized in that: The motorcycle includes the engine according to claim 9.

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