Crankcase cover and engine
Patent Information
- Application Number
- CN202522022080.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-17
AI Technical Summary
[0002]目前随着摩托车行业的迅速发展,操作便利性是市场用户的主要需求之一,传统发动机离合器盖上的操纵杆需与整车离合拉线连接,需要通过手动拉动离合线才能使离合器分离与结合,整车行驶过程离合的控制较为复杂
[0016]本实用新型的有益效果是:通过在原有曲轴箱盖上设置安装柱及螺栓固定孔,能够快速安装及拆卸相应部件,适应发动机结构的设计,同时安装有该结构的发动机能够更能适应相关结构的改进,达到提升发动机操控的目的。
Smart Images

Figure CN224885667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to engine components and the field of engines, specifically to a crankcase cover and an engine. Background Technology
[0002] With the rapid development of the motorcycle industry, ease of operation is one of the main demands of market users. The control lever on the traditional engine clutch cover needs to be connected to the clutch cable of the whole vehicle. The clutch can only be disengaged and engaged by manually pulling the clutch cable, making clutch control during the whole vehicle driving process relatively complicated.
[0003] The existing crankcase cover structure is difficult to adapt to the improved structure, so it is necessary to make corresponding structural improvements in response to technological developments.
[0004] Therefore, to solve the above problems, a crankcase cover and engine are needed that can be quickly installed and removed while ensuring compatibility with existing structures. Utility Model Content
[0005] In view of this, the purpose of this utility model is to overcome the defects in the prior art and provide a crankcase cover and engine that can be quickly installed and disassembled while ensuring compatibility with the existing structure.
[0006] A crankcase cover includes a cover body and bolt holes disposed around the perimeter of the cover body. A clutch receiving cavity is provided at a corresponding position on the cover body, and an operating lever hole is provided on the wall of the clutch receiving cavity. The characteristic feature is that a plurality of mounting posts are provided on the top of the outer wall of the clutch receiving cavity, and bolt fixing holes are provided beside the operating lever holes. The mounting posts and bolt fixing holes are not aligned with a straight line. By providing mounting posts and bolt fixing holes on the crankcase cover, and ensuring they are not aligned with a straight line, the corresponding components can be installed quickly and with good stability, guaranteeing stable operation.
[0007] Furthermore, the mounting column consists of two columns spaced apart, with reinforcing ribs connecting them. This structure is simple and has the advantage of enhancing the strength of the mounting columns.
[0008] Furthermore, the outer circumference of the two mounting posts is tangent to the crankcase mating surface of the cover and the crankcase. This structure can extend or conform to the component mounting position as much as possible, while making the structure compact and allowing it to be installed in the crankcase cover mounting position.
[0009] Furthermore, the bolt fixing holes are located on the outer edge of the clutch receiving cavity and are arranged in a triangle with the two mounting posts. This structure is simple and provides strong stability in the mounting position, ensuring the accuracy of the operating components.
[0010] Furthermore, the bottom of one of the two mounting posts at least partially overlaps with the bolt holes around the perimeter of the cover when viewed from the front of the cover, and the clutch operating lever hole is located between the two mounting posts. This structure is simple and easy to manufacture, while ensuring the operating torque is maintained between the mounting positions, thus guaranteeing the operational accuracy of the operating components.
[0011] Furthermore, both the mounting post and the bolt fixing holes are perpendicular to the axis of the bolt holes around the cover. This structure ensures that the mounting component is perpendicular to the clutch axis of the crankcase cover, conforming to the operating direction of the clutch operating lever, thus facilitating effective clutch operation.
[0012] This utility model also provides an engine, including a crankcase and a crankcase cover covering the crankcase, wherein the crankcase cover is the crankcase cover described above. An engine with this crankcase cover has the function of installing and operating corresponding components, and offers the advantage of convenient installation and disassembly of these components.
[0013] Furthermore, it also includes a clutch actuator mounted on the engine, characterized in that: the clutch actuator is fixed to the crankcase cover by bolts connected to the mounting post and bolt fixing holes. Bolt mounting offers advantages such as simple structure and convenient operation.
[0014] Furthermore, the mounting post is also equipped with a locating pin. The bolt passes through the bolt hole on the clutch actuator and then through the locating pin to be fixedly connected to the mounting post. The locating pin facilitates installation and positioning, making installation easier.
[0015] Furthermore, the output shaft of the clutch actuator is inserted into the operating lever hole and is in a non-rotatable engagement with the clutch operating lever. This structure facilitates the engagement of the clutch actuator with the clutch operating lever and the operation and control of the clutch.
[0016] The beneficial effects of this utility model are: by setting mounting posts and bolt fixing holes on the original crankcase cover, the corresponding components can be quickly installed and disassembled, adapting to the design of the engine structure. At the same time, the engine with this structure can better adapt to the improvement of related structures, thereby improving engine handling. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is a schematic diagram of the crankcase cover of this utility model;
[0019] Figure 2 This is an exploded view of the mounting component of this utility model on the crankcase cover; Detailed Implementation
[0020] like Figure 1As shown, this utility model discloses a crankcase cover, specifically a right crankcase cover. It includes a cover body 3 and bolt holes 31 arranged around the perimeter of the cover body 3. A clutch receiving cavity 32 is provided at a corresponding position on the cover body 3. A water pump mounting part 34 is provided at the upper right end of the clutch receiving cavity, and an oil dipstick mounting part 33 is provided at the lower end. An operating lever hole 2 is provided on the wall of the clutch receiving cavity 32. Several mounting posts 1 are provided on the top of the outer wall of the clutch receiving cavity. Bolt fixing holes 35 are provided beside the operating lever holes 2. Because the wall of the clutch receiving cavity is relatively thin, the wall thickness is increased at the bolt fixing holes to ensure the thickness of the bolt fixing holes, which helps to enhance installation strength. The mounting posts and bolt fixing holes 35 are not on a straight line. By providing mounting posts and bolt fixing holes on the crankcase cover, and ensuring they are not on the same straight line, the corresponding components can be installed quickly and with good stability, guaranteeing stable operation.
[0021] In this embodiment, there are two mounting columns 1, spaced apart, with reinforcing ribs 8 connecting them. This structure is simple and has the advantage of enhancing the strength of the mounting columns.
[0022] In this embodiment, the outer circumference of the two mounting posts 1 is tangent to the mating surface of the crankcase and the cover. This structure can extend or conform to the component mounting position as much as possible, while making the structure compact and allowing it to be installed in the crankcase cover mounting position.
[0023] In this embodiment, the bolt fixing hole 35 is located on the edge of the outer wall of the clutch receiving cavity and is arranged in a triangle with the two mounting posts 1. This structure is simple and provides strong stability in the mounting position, ensuring the accuracy of the operating components.
[0024] In this embodiment: the bottom of one of the two mounting posts 1 at least partially overlaps with the bolt holes around the perimeter of the cover when viewed from the front of the cover, and the clutch operating lever hole is located between the two mounting posts. This structure is simple and easy to manufacture, and at the same time, the working torque is between the mounting positions, which can ensure the operating accuracy of the operating components.
[0025] In this embodiment, both the mounting post 1 and the bolt fixing hole 35 are perpendicular to the axis of the bolt holes around the cover. This structure ensures that the mounting component is perpendicular to the clutch axis of the crankcase cover, conforming to the operating direction of the clutch operating lever, which facilitates effective clutch operation.
[0026] This utility model also provides an engine, including a crankcase and a crankcase cover covering the crankcase, wherein the crankcase cover is a right crankcase cover, and the crankcase cover is the one described above. The engine is also equipped with a controller for controlling a clutch actuator. The controller controls the operation of the clutch actuator; according to the vehicle's speed, the controller controls the clutch actuator to operate, controlling the engagement and disengagement of the clutch, thereby controlling other engine operations, such as shifting gears, disengaging and engaging power, etc. The engine equipped with this crankcase cover allows for the installation and operation of corresponding components, offering the advantage of convenient installation and disassembly of these components.
[0027] In this embodiment, a clutch actuator 4 is also included, which is mounted on the engine. The clutch actuator 4 is connected and fixed to the crankcase cover by bolts 5 to the mounting post 1 and bolt fixing holes 35. Bolt mounting offers advantages such as simple structure and convenient operation.
[0028] In this embodiment, a positioning pin 6 is also provided on the mounting column 1. The bolt 5 passes through the bolt hole on the clutch actuator and then through the positioning pin 6 to be fixedly connected to the mounting column 1 and the bolt fixing hole 35. The positioning pin facilitates installation and positioning, making installation convenient.
[0029] In this embodiment, the output shaft 4a of the clutch actuator 4 is inserted into the operating lever hole 2 and is in a non-rotatable engagement with the clutch operating lever 7. This non-rotatable engagement means that there is no rotation between the output shaft and the clutch operating lever 7. The engagement structure can employ various methods such as spline engagement or key-slot engagement. This structure facilitates the engagement of the clutch actuator with the clutch operating lever and the operation control of the clutch.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A crankcase cover, comprising a cover body and bolt holes disposed around the periphery of the cover body, a clutch receiving cavity provided at a corresponding position on the cover body, and an operating lever hole provided on the wall of the clutch receiving cavity, characterized in that: Several mounting posts are provided on the top of the outer wall of the clutch receiving cavity, and bolt fixing holes are provided next to the operating rod hole. The mounting posts and bolt fixing holes are not on the same straight line.
2. The crankcase cover according to claim 1, characterized in that: The mounting column consists of two columns, spaced apart, with reinforcing ribs connecting them.
3. The crankcase cover according to claim 2, characterized in that: The outer circumference of the two mounting columns is tangent to the crankcase side of the cover and the crankcase mating surface.
4. The crankcase cover according to claim 3, characterized in that: The bolt fixing holes are located on the outer edge of the clutch housing cavity and are arranged in a triangle with the two mounting posts.
5. The crankcase cover according to claim 4, characterized in that: The bottom of one of the two mounting posts overlaps at least partially with the bolt holes around the perimeter of the cover when viewed from the front of the cover, and the clutch operating lever hole is located between the two mounting posts.
6. The crankcase cover according to any one of claims 1-5, characterized in that: The mounting post and bolt fixing holes are both perpendicular to the axis of the bolt holes around the cover.
7. An engine comprising a crankcase and a crankcase cover covering the crankcase, characterized in that: The crankcase cover is the crankcase cover as described in any one of claims 1-6.
8. The engine according to claim 7, further comprising a clutch actuator disposed on the engine, characterized in that: The clutch actuator is fixed to the crankcase cover by bolts connected to the mounting post and bolt fixing holes.
9. The engine according to claim 8, characterized in that: The mounting post is also equipped with a locating pin. The bolt passes through the bolt hole on the clutch actuator and then through the locating pin to be fixedly connected to the mounting post.
10. The engine according to claim 9, characterized in that: The output shaft of the clutch actuator is inserted into the operating rod hole and is in a non-rotatable fit with the clutch operating rod.