Rear end cover of engine box body

Abstract

The invention relates to the related technical field of engine box bodies, and discloses an engine box body rear end cover which comprises a driving part assembly, a shielding cover assembly is fixedly connected to the outer side of the driving part assembly, a box body assembly is fixedly connected to the end of the shielding cover assembly, and the box body assembly comprises a box cover and an in-box partition plate. A liquid cavity is formed between the box cover and the box inner partition plate, a driving gear mounting cavity is formed between the box inner partition plate and the shielding cover assembly, and a driving part mounting cavity is formed between the shielding cover assembly and the driving part assembly; by combining arc-shaped openings and through hole pipe structures of a first mechanical cam and a second mechanical cam and notches in the surface of a transmission shaft, a closed-loop engine oil circulation of liquid inlet pipe orifice-groove bodies of a liquid cavity-a driving part assembly-backflow to the liquid inlet pipe orifice is constructed; meanwhile, an engine oil circulation path is deeply matched with the structures of the cam, the transmission shaft, the gear and other components.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field related to engine housings, and more particularly relates to an engine housing rear end cover. BACKGROUND

[0002] In the field of motorcycle engines, the rear end cover of the housing is a core component for power transmission and component protection, and its structural design directly affects the running stability and service life of the engine. The traditional engine housing rear end cover generally adopts a design form of "closed cover body + single cavity", and the inside forms a relatively closed space after the cover is closed, and the heat is discharged only by relying on the natural heat dissipation of the cover surface or simple heat dissipation holes. This design has the problems of significantly high engine oil temperature and poor heat dissipation effect in actual use, which is specifically manifested as follows: On the one hand, the closed structure of the traditional rear end cover limits the circulation path of the engine oil. In the traditional design, the engine oil is input through a single pipeline, flows naturally in the internal cavity, and is discharged through an independent outlet, lacking a circulation channel adapted to the structures of core components such as cams, transmission shafts, and gears. The engine oil is prone to stagnation during the flow process, and cannot fully cover all friction components, which not only leads to poor lubrication effect, but also makes it difficult for the heat generated by the operation of the components to be absorbed and carried away by the engine oil in time; at the same time, the air flow in the closed cover body is poor, and the heat absorbed by the engine oil cannot be quickly diffused to the outside. With the increase of the running time of the equipment, the engine oil temperature gradually increases, and even exceeds the suitable lubrication temperature range, resulting in a decrease in the viscosity of the engine oil and a decrease in the lubrication performance, and aggravating the wear of the components.

[0003] Therefore, in view of the above, the existing structure and defects are improved, and an engine housing rear end cover is provided to achieve a more practical and valuable purpose. SUMMARY

[0004] The present application provides an engine housing rear end cover to overcome the above-mentioned defects in the prior art.

[0005] The purpose and effect of the engine housing rear end cover of the present application are achieved by the following specific technical means: An engine housing rear end cover, comprising a drive part assembly, a shielding cover assembly is fixedly connected to the outer side of the drive part assembly, an end of the shielding cover assembly is fixedly connected to a housing assembly, the housing assembly comprises a cover and an inner partition plate, a liquid cavity is arranged between the cover and the inner partition plate, a drive gear installation cavity is arranged between the inner partition plate and the shielding cover assembly, and a drive part installation cavity is arranged between the shielding cover assembly and the drive part assembly. The liquid cavity is internally provided with a mechanical output slot, a rotating installation slot and a motor driving slot, the rotating installation slot is used for fixing a middle shaft, the mechanical output slot is internally provided with a mechanical first cam, the motor driving slot is internally provided with a mechanical second cam, and the mechanical output slot is internally connected with the rotating installation slot and the motor driving slot and is provided with a liquid inlet pipe. The liquid inlet pipe is communicated with the mechanical output slot, the rotating installation slot and the motor driving slot, is communicated with the driving part assembly, and forms oil circulation backflow, so that the liquid in the engine is quickly backflowed and radiated.

[0006] Further, the driving part assembly comprises a driving part installation cavity, the driving part installation cavity comprises an internal combustion engine cover and a motor driving part, the internal combustion engine cover is internally provided with an internal combustion engine cavity, the motor driving part is internally provided with a motor cavity, and the internal combustion engine cavity and the motor cavity are internally provided with three groups of through holes.

[0007] Further, the inner wall of the bottom of the box cover is vertically provided with three groups of circular grooves from top to bottom, the three groups of circular grooves are a mechanical output slot, a rotating installation slot and a motor driving slot in sequence, and the mechanical output slot, the rotating installation slot and the motor driving slot are provided with through connection holes; the surface of the inner partition plate is provided with three groups of through holes, the three groups of through holes are correspondingly arranged with the mechanical output slot, the rotating installation slot and the motor driving slot, and the mechanical output slot, the rotating installation slot and the motor driving slot are sequentially provided with a mechanical output part, a middle shaft fixing part and a power output part.

[0008] Further, the mechanical output part comprises a mechanical first cam, the outer side of the mechanical first cam is provided with an arc-shaped opening, a first through hole pipe is fixedly connected to the mechanical first cam, a first through hole is formed in the middle of the first through hole pipe, and the first through hole pipe is communicated with the arc-shaped opening; the middle shaft fixing part comprises a middle cam, an opening is formed in the middle of the middle cam, the opening is communicated with the through connection hole, and the power output part comprises a mechanical second cam, the outer side of the mechanical second cam is also provided with an arc-shaped opening, a second through hole pipe is arranged on the mechanical second cam, a second through hole pipe is fixedly connected to the mechanical second cam, and a second through hole is formed in the second through hole pipe.

[0009] Further technical solutions, the outer side of the box cover is provided with a central axis heat dissipation part and a magnetic force heat dissipation assembly, the central axis heat dissipation part is arranged above the magnetic force heat dissipation assembly, the mechanical second cam surface is divided into four regions, two opposite regions of the four regions are provided with permanent magnets, the magnetic force heat dissipation assembly comprises a heat dissipation cover, the heat dissipation cover is internally provided with a cavity, the cavity is internally provided with a rhombus-shaped groove, the rhombus-shaped groove is internally provided with a magnetic force heat dissipation blade, the front end of the magnetic force heat dissipation blade is provided with a magnetic sheet assembly, and the magnetic sheet assembly is matched with the permanent magnet to form rotation.

[0010] Further technical solutions, the shielding cover assembly comprises an isolation bottom plate and a shielding cover, the surface of the isolation bottom plate is fixedly connected with the shielding cover, a drive gear mounting cavity is formed between the isolation bottom plate and the box assembly, a drive gear assembly is mounted in the drive gear mounting cavity, the drive gear assembly comprises a mechanical transmission shaft, a middle fixed shaft and a motor transmission shaft, the mechanical transmission shaft, the middle fixed shaft and the motor transmission shaft are vertically distributed from top to bottom, one end of the mechanical transmission shaft is fixedly connected with the first through hole pipe, the surface of the mechanical transmission shaft is fixedly mounted with a mechanical transmission gear, the surface of the middle fixed shaft is fixedly connected with a middle transmission gear, the end of the middle fixed shaft is fixedly connected with the middle cam, a single-piece clutch is connected between the middle transmission gear and the middle cam, one end of the motor transmission shaft is fixedly connected with the second through hole pipe, and a motor gear set is fixedly mounted on the surface of the motor transmission shaft.

[0011] Further technical solutions, the internal combustion engine cavity is internally provided with an internal combustion engine driving part, the internal combustion engine driving part comprises a mechanical transmission middle shaft, the mechanical transmission middle shaft penetrates through the isolation bottom plate, a crankshaft part is fixedly mounted on the surface of the mechanical transmission middle shaft, an internal combustion engine compression module is arranged at the end of the crankshaft part, the internal combustion engine compression module and the crankshaft part are mounted into the internal combustion engine cavity, and the other end of the mechanical transmission middle shaft is fixedly connected with the other end of the mechanical transmission shaft.

[0012] Further technical solutions, the motor cavity is internally provided with a motor driving part, the motor driving part comprises a driving motor, a motor driving shaft is fixedly connected to the output end of the driving motor, and motor heat dissipation blades are fixedly connected to the tail end of the driving motor.

[0013] Further technical solutions, the isolation bottom plate and the internal combustion engine cover are provided with an inner isolation plate, a fixed middle shaft is fixedly mounted on the inner isolation plate, the end of the fixed middle shaft is fixedly connected with the other end of the middle fixed shaft, a heat dissipation module is arranged at the outer end of the mechanical transmission middle shaft, and notches are arranged on the surfaces of the mechanical transmission middle shaft and the motor driving shaft, and the notches are arranged between the inner isolation plate and the isolation bottom plate.

[0014] Further technical solutions, the outer end of the shielding cover assembly is fixedly connected with an end cover assembly, the outer end of the mechanical transmission middle shaft is provided with a heat dissipation module, the heat dissipation module is arranged in the end cover assembly, and the surface of the box assembly is provided with a plurality of grooves; a plurality of groups of ventilation holes are arranged on the outer end cover of the magnetic heat dissipation assembly, the plurality of groups of ventilation holes and the magnetic heat dissipation blades realize effective heat dissipation, and the bottom of the box cover is also provided with a liquid inlet pipe; and the liquid inlet pipe is used for inputting and outputting lubricating oil.

[0015] Compared with the prior art, the present application has the following beneficial effects: The present application provides a kind of engine box rear end cover through closed loop oil circulation system and component structure depth adaptation design, this design with the core of liquid inlet pipe with the function of conveying and discharging, in combination with the arc opening of mechanical first cam, mechanical second cam and through-hole pipe structure, and transmission shaft surface groove, build "liquid inlet pipe-liquid cavity each groove-body-driving part assembly-reflow to liquid inlet pipe" closed loop oil circulation;While oil circulation path and cam, transmission shaft, gear and other components structure depth adaptation, oil continues to flow in closed loop, both can be fully lubricated to cam inside and outside, transmission shaft, gear meshing parts and other parts, reduce the wear and tear of component, can also quickly take away the heat of each component operation, avoid local high temperature.

[0016] The present application provides a kind of engine box rear end cover through design magnetic drive without additional energy dissipation system design, utilize the permanent magnet on the surface of mechanical second cam, with the magnetic sheet assembly of the front end of magnetic heat dissipation blade in magnetic heat dissipation assembly form magnetic linkage, mechanical second cam rotates and drives magnetic sheet assembly to rotate, and then drives heat dissipation blade to operate;Cooperate with the airflow guide of rhombus groove of heat dissipation cover bucket and outer end cover ventilation hole, and the passive air cooling of the surface of box assembly, build composite heat dissipation system.

[0017] The present application provides a kind of engine box rear end cover through closed loop oil circulation and magnetic heat dissipation cooperative linkage heat dissipation system design, with magnetic drive without additional energy dissipation system as "heat discharge terminal", build the linkage mechanism of depth cooperation of both: closed loop oil circulation when flowing through motor drive groove, mechanical output groove and each transmission shaft, gear component, will absorb heat to the surface of box assembly and the vicinity of magnetic heat dissipation assembly;At the same time, mechanical second cam rotates, both provides reciprocating suction and discharge power for closed loop oil circulation, and also drives magnetic heat dissipation blade to rotate through permanent magnet, so that heat dissipation blade accurately guides airflow to high temperature area of oil circulation, accelerates the heat dissipation of oil heat to form "oil heat absorption-magnetic heat dissipation-air cooling auxiliary" three-level linkage heat dissipation. BRIEF DESCRIPTION OF DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a schematic diagram of the overall side view structure of the present invention; Figure 4 This is a schematic diagram of the overall first exploded structure of the present invention; Figure 5 This is a schematic diagram of the overall second explosive structure of the present invention; Figure 6 This is a schematic diagram of the overall appearance structure of the housing assembly in this invention; Figure 7 This is a schematic diagram of the overall internal structure of the housing assembly in this invention; Figure 8 This is a front view structural diagram of the housing assembly in this invention; Figure 9 This is a side view of the housing assembly in this invention. Figure 10 This is a side sectional view of the housing assembly in this invention; Figure 11 For the present invention Figure 10 A magnified structural diagram at point A in the diagram.

[0021] Explanation of reference numerals in the attached figures: 1. Enclosure assembly; 11. Enclosure cover; 111. Mechanical output slot; 112. Rotary mounting slot; 113. Motor drive slot; 12. Internal partition; 13. Mechanical output section; 131. First mechanical cam; 132. First through-hole tube; 14. Central shaft fixing part; 141. Central cam; 15. Power output part; 151. Mechanical second cam; 152. Second through hole tube; 16. Central shaft heat dissipation part; 17. Magnetic heat dissipation assembly; 171. Heat dissipation cover; 172. Magnetic heat dissipation blades; 173. Magnetic sheet assembly; 18. Liquid inlet; 2. Shielding cover assembly; 21. Mechanical transmission gear; 22. Central transmission gear; 23. Single-plate clutch; 24. Motor gear set; 25. Motor drive shaft; 26. Mechanical transmission shaft; 27. Central fixed shaft; 28. Shielding cover; 3. Drive unit assembly; 31. Internal combustion engine cover; 32. Electric motor drive unit; 33. Internal combustion engine cavity; 34. Electric motor cavity; 35. Isolation base plate; 351. Inner isolation plate; 353. Mechanical transmission shaft; 354. Fixed shaft; 355. Electric motor drive shaft; 36. Heat dissipation module; 37. Motor heat dissipation blades; 38. Internal combustion engine compression module; 39. Drive motor; 4. End cap assembly. Detailed Implementation

[0022] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0023] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] As attached Figure 1 To be continued Figure 11 As shown: This invention provides a rear end cover for an engine housing, including a drive assembly 3. A shielding cover assembly 2 is fixedly connected to the outer side of the drive assembly 3, and a housing assembly 1 is fixedly connected to the end of the shielding cover assembly 2. The housing assembly 1 includes a cover 11 and an inner partition 12. A liquid chamber is provided between the cover 11 and the inner partition 12. A drive gear mounting cavity is provided between the inner partition 12 and the shielding cover assembly 2. A drive unit mounting cavity is provided between the shielding cover assembly 2 and the drive assembly 3. This structure, through the partitioned design of "liquid chamber - drive gear mounting cavity - drive unit mounting cavity", can realize the independent installation and operation of each functional component, avoid mutual interference between components in different cavities, and provide an independent and connected spatial foundation for subsequent oil circulation and heat dissipation, ensuring that each component works stably in an orderly environment.

[0026] The liquid chamber is equipped with a mechanical output slot 111, a rotating mounting slot 112, and a motor drive slot 113. The rotating mounting slot 112 is used to fix the central shaft. The mechanical output slot 111 is equipped with a mechanical first cam 131, and the motor drive slot 113 is equipped with a mechanical second cam 151. The mechanical output slot 111, the rotating mounting slot 112, and the motor drive slot 113 are connected by a liquid inlet 18. The partitioned arrangement of the three types of slots corresponds to the three core functions of mechanical output, central shaft fixing, and motor drive, respectively, so that each functional component can be precisely matched with the installation position, reducing space occupation and improving structural compactness. The centralized connection design of the liquid inlet 18 provides a unified channel for the oil to enter the three types of slots at the same time, avoiding the messy problem of multiple pipelines being scattered, and also laying a structural foundation for subsequent oil circulation and return.

[0027] The inlet pipe 18 connects to the mechanical output slot 111, the rotating mounting slot 112, and the motor drive slot 113, enabling them to communicate with the inside of the drive assembly 3 and form an oil circulation return flow. This oil circulation return flow quickly dissipates heat from the internal fluid of the engine. This connection design constructs a complete oil circulation path from the inlet pipe to each slot to the drive assembly. During the circulation process, the oil can lubricate components such as the first mechanical cam 131, the second mechanical cam 151, and the central shaft, reducing friction loss between components. It can also carry away the heat generated by each component during operation through continuous flow, achieving the dual functions of lubrication and heat dissipation. This effectively reduces the internal temperature of the engine and prevents component aging or performance degradation caused by high temperatures.

[0028] Preferred options are shown in the appendix. Figure 4 To be continued Figure 5The drive assembly 3 includes a drive mounting cavity, which includes an internal combustion engine cover 31 and a motor drive unit 32. The internal combustion engine cover 31 has an internal combustion engine cavity 33 inside, and the motor drive unit 32 has a motor cavity 34 inside. The internal combustion engine cavity 33 and the motor cavity 34 have three sets of through holes, which connect the internal combustion engine cavity 33 and the motor cavity 34. The independent cavity design of the internal combustion engine and the motor achieves physical isolation between the two power sources, avoiding interference from the high temperature and vibration of the internal combustion engine during operation, and also preventing the motor components from affecting the operation of the internal combustion engine. The three sets of through holes not only provide a channel for the cross-cavity installation of components such as the central shaft and drive shaft, ensuring effective power transmission between the two power sources, but also serve as an auxiliary channel for oil circulation, allowing oil to flow between the two cavities, further improving the lubrication and heat dissipation coverage of the internal combustion engine and the motor.

[0029] Preferred options are shown in the appendix. Figure 6 To be continued Figure 10 The bottom inner wall of the box cover 11 has three sets of circular grooves vertically arranged from top to bottom. These three sets of circular grooves are, in sequence, a mechanical output groove 111, a rotating mounting groove 112, and a motor drive groove 113. Through-holes are provided between the mechanical output groove 111, the rotating mounting groove 112, and the motor drive groove 113. The surface of the inner partition 12 has three sets of through holes, which are correspondingly arranged with the mechanical output groove 111, the rotating mounting groove 112, and the motor drive groove 113. The mechanical output groove 111, the rotating mounting groove 112, and the motor drive groove 113 are sequentially arranged with... The mechanical output section 13, the central shaft fixing section 14, and the power output section 15 are designed with vertically distributed circular slots that conform to the spatial logic of component installation. This design makes full use of the longitudinal space of the cover 11, reduces lateral occupation, and makes the overall structure more compact. The corresponding design of the through connection hole and the through hole of the internal partition 12 provides precise alignment for the connection of each component, ensuring that the mechanical output section 13, the central shaft fixing section 14, and the power output section 15 can be stably installed and realize power transmission. On the other hand, it also provides a channel for the flow of oil between the slots, ensuring the continuity of oil circulation and avoiding dead spots in heat dissipation or lubrication caused by local oil stagnation.

[0030] Preferred options are shown in the appendix. Figure 7 To be continued Figure 8The mechanical output section 13 includes a first mechanical cam 131. The outer surface of the first mechanical cam 131 is provided with an arc-shaped opening. A first through-hole tube 132 is fixedly connected to the first mechanical cam 131. The first through-hole tube 132 has a through-hole tube 132 in the middle and communicates with the arc-shaped opening. The arc-shaped opening design can increase the contact area between the first mechanical cam 131 and the engine oil, so that the engine oil can more fully coat the cam surface and improve the lubrication effect. At the same time, when the cam rotates, the arc-shaped opening can help guide the flow of engine oil and enhance the oil circulation efficiency. The communication design between the first through-hole tube 132 and the arc-shaped opening allows the engine oil to enter the interior of the cam through the through-hole tube to achieve lubrication of the internal structure of the cam, avoiding the problem of traditional external lubrication only covering the surface and the interior being prone to wear, thus extending the service life of the cam. The central shaft fixing part 14 includes a central cam 141. The central cam 141 has an opening in the middle, which communicates with the through connection hole. The communication between the opening and the through connection hole not only provides a fixed channel for the installation of the central shaft, ensuring that the central shaft is stable and does not shift after installation, but also allows machine oil to enter the connection part between the central shaft and the cam through the opening, lubricating the connection gap, reducing the frictional resistance when the central shaft rotates, and improving the smoothness of rotation. The power output unit 15 includes a mechanical second cam 151, which also has an arc-shaped opening on its outer side. The mechanical second cam 151 is provided with a second through-hole tube 152, which is fixedly connected to the mechanical second cam 151. The second through-hole tube 152 is also provided with a second through-hole tube 152. Similar to the mechanical first cam 131, the design of the arc-shaped opening and the second through-hole tube 152 can achieve full lubrication and oil guidance of the mechanical second cam 151, ensuring the stable operation of the motor drive-related components. At the same time, it echoes the structure of the mechanical first cam 131, improves the consistency of the overall design, and reduces production and maintenance costs.

[0031] Preferred options are shown in the appendix. Figure 6 To be continued Figure 11The outer side of the box cover 11 is provided with a central heat dissipation part 16 and a magnetic heat dissipation component 17. The central heat dissipation part 16 is located above the magnetic heat dissipation component 17. The central heat dissipation part 16 can directly assist in heat dissipation of the central shaft, avoiding the accumulation of heat generated by the central shaft due to long-term rotation. The vertically distributed layout design can make full use of the space on the outer side of the box cover 11, so that the two heat dissipation components can play their respective roles without blocking each other, thereby improving heat dissipation efficiency. The surface of the mechanical second cam 151 is divided into four areas, with permanent magnets installed in two opposing areas. The magnetic heat dissipation assembly 17 includes a heat dissipation cover 171, which has a cavity inside. The cavity has a rhomboid groove, and magnetic heat dissipation blades 172 are installed in the rhomboid groove. The front end of the magnetic heat dissipation blades 172 has a magnetic sheet assembly 173, which cooperates with the permanent magnets to make them rotate. Through the magnetic cooperation between the permanent magnets and the magnetic sheet assembly 173, the rotation of the mechanical second cam 151 can drive the magnetic heat dissipation blades 172 to rotate synchronously, eliminating the need for an additional drive motor and achieving an energy-saving design of "heat dissipation driven by component movement". The cavity and rhomboid groove of the heat dissipation cover 171 can guide the airflow direction, enabling the rotating heat dissipation blades to more efficiently dissipate heat near the motor drive slot 113. At the same time, the rhomboid groove limits the installation of the heat dissipation blades, ensuring that the blades are stable and do not wobble when rotating, thus improving the reliability of the heat dissipation assembly.

[0032] Preferred options are shown in the appendix. Figure 4 To be continued Figure 5The shielding cover assembly 2 includes an isolation base plate 35 and a shielding cover 28. The shielding cover 28 is fixedly connected to the surface of the isolation base plate 35. A drive gear mounting cavity is formed between the isolation base plate 35 and the housing assembly 1. A drive gear assembly is installed in the drive gear mounting cavity. The drive gear assembly includes a mechanical transmission shaft 26, a central fixed shaft 27, and a motor transmission shaft 25. The mechanical transmission shaft 26, the central fixed shaft 27, and the motor transmission shaft 25 are vertically distributed from top to bottom. The closed mounting cavity formed by the isolation base plate 35 and the shielding cover 28 can protect the internal drive gear assembly, prevent external dust and impurities from entering the gear meshing parts, reduce gear wear, and also prevent oil stains generated during gear rotation from leaking out, keeping the outside of the equipment clean. The vertically distributed transmission shaft design matches the groove distribution of the housing cover 11, ensuring that power can be transmitted vertically, reducing losses during power transmission, and improving power transmission efficiency. One end of the mechanical transmission shaft 26 is fixedly connected to the first through-hole tube 132. A mechanical transmission gear 21 is fixedly mounted on the surface of the mechanical transmission shaft 26. A central transmission gear 22 is fixedly connected to the surface of the central fixed shaft 27. The end of the central fixed shaft 27 is fixedly connected to the central cam 141. A single-plate clutch 23 is connected between the central transmission gear 22 and the central cam 141. The fixed connection between the mechanical transmission shaft 26 and the first through-hole tube 132 realizes the power connection between the mechanical output part 13 and the drive gear assembly, ensuring that mechanical power can be transmitted to subsequent components through the gears. The single-plate clutch 23 is the core structure for realizing the power switching between "low-speed motor drive and high-speed internal combustion engine drive of the motorcycle". Through the engagement and disengagement of the clutch, the switching between the two power sources can be completed quickly and smoothly, avoiding power interruption or shock, improving the riding experience. At the same time, when the engine is driven, it can drive the motor transmission shaft to reverse to recharge, realizing energy recovery and utilization. One end of the motor drive shaft 25 is fixedly connected to the second through-hole tube 152. A motor gear set 24 is fixedly installed on the surface of the motor drive shaft 25. The connection between the motor drive shaft 25 and the second through-hole tube 152 ensures that the motor power can be effectively transmitted through the gear set. The design of the motor gear set 24 can adjust the transmission ratio according to the needs, so that the power output of the motor is more suitable for the motorcycle driving needs and improves the power utilization efficiency.

[0033] Preferred options are shown in the appendix. Figure 4 To be continued Figure 5An internal combustion engine drive unit is installed inside the internal combustion engine cavity 33. The internal combustion engine drive unit includes a mechanical transmission shaft 353, which penetrates the isolation base plate 35. A crankshaft component is fixedly installed on the surface of the mechanical transmission shaft 353. An internal combustion engine compression module 38 is provided at the end connection of the crankshaft component. The internal combustion engine compression module 38 and the crankshaft component are installed inside the internal combustion engine cavity 33. The mechanical transmission shaft 353 is fixedly connected to the other end of the mechanical transmission shaft 26. The through-through design of the mechanical transmission shaft 353 realizes the power connection between the internal combustion engine and the drive gear assembly, ensuring that the power generated by the internal combustion engine can be transmitted to the transmission shaft, thereby driving the motorcycle. The built-in installation of the crankshaft component and the internal combustion engine compression module 38 can utilize the enclosed space of the internal combustion engine cavity 33 to protect them, reduce the interference of external factors on the core components, and also facilitate the lubrication and heat dissipation of these components by the engine oil, ensuring the stable operation of the internal combustion engine drive unit.

[0034] Preferred options are shown in the appendix. Figure 4 To be continued Figure 5 The motor drive component is installed inside the motor cavity 34. The motor drive component includes a drive motor 39. The output end of the drive motor 39 is fixedly connected to a motor drive shaft 355, and the end of the drive motor 39 is fixedly connected to a motor heat dissipation fin 37. The direct connection between the motor drive shaft 355 and the drive motor 39 reduces the power transmission links, reduces power loss, and ensures efficient output of motor power. The motor heat dissipation fin 37 can directly dissipate heat from the drive motor 39, preventing the motor from overheating due to prolonged operation, ensuring stable motor performance, and extending the motor's service life.

[0035] Preferred options are shown in the appendix. Figure 4 To be continued Figure 5An inner isolation plate 351 is provided between the isolation base plate 35 and the internal combustion engine cover 31. A fixed central shaft 354 is fixedly installed on the inner isolation plate 351. The end of the fixed central shaft 354 is fixedly connected to the other end of the central fixed shaft 27. The inner isolation plate 351 further enhances the sealing and isolation of the structure, preventing high-temperature oil stains from the internal combustion engine cavity 33 from seeping into the drive gear mounting cavity. It also provides a stable installation foundation for the fixed central shaft 354. The connection between the fixed central shaft 354 and the central fixed shaft 27 ensures the installation stability of the central shaft component, prevents the central shaft from shifting or shaking during rotation, and improves the reliability of the overall structure. The outer end of the mechanical transmission shaft 353 is provided with a heat dissipation module 36. The surfaces of the mechanical transmission shaft 353 and the motor drive shaft 355 are provided with grooves, which are located between the inner isolation plate 351 and the isolation base plate 35. The heat dissipation module 36 can provide targeted heat dissipation to the end of the mechanical transmission shaft 353 to prevent the connection stability from being affected by heat accumulation at the end of the shaft. The groove design on the shaft surface can increase the contact area between the oil and the shaft, improve the lubrication effect, and also serve as an auxiliary channel for the flow of oil, guiding the oil to flow between the isolation plate and the base plate, further improving the oil circulation path and enhancing the heat dissipation and lubrication effect.

[0036] Preferred options are shown in the appendix. Figure 1 To be continued Figure 5 The outer end of the shielding cover assembly 2 is fixedly connected to an end cover assembly 4, and the outer end of the mechanical transmission shaft 353 is provided with a heat dissipation module 36. The heat dissipation module 36 is disposed inside the end cover assembly 4. The end cover assembly 4 can protect the heat dissipation module 36, preventing external collisions or impurities from affecting the operation of the heat dissipation module. At the same time, it can also guide the heat dissipation airflow and improve the heat dissipation efficiency of the heat dissipation module. Building the heat dissipation module inside also makes the external structure of the equipment simpler and reduces the safety hazards caused by protruding parts. The surface of the housing assembly 1 is provided with multiple grooves. The design of multiple grooves can increase the contact area between the housing assembly 1 and the air. When the vehicle is in motion, the airflow can quickly remove the heat from the surface of the housing through the grooves to achieve passive air cooling and assist in oil circulation cooling, further reducing the overall temperature of the equipment. The outer end cap of the magnetic heat dissipation assembly 17 is provided with multiple sets of ventilation holes. These ventilation holes, together with the magnetic heat dissipation blades 172, effectively dissipate heat. The ventilation holes provide airflow channels for the rotating heat dissipation blades, allowing hot air to be smoothly discharged and cold air to enter in a timely manner, thereby improving the heat dissipation efficiency of the heat dissipation blades and ensuring that the heat near the motor drive slot 113 can be quickly dissipated. The bottom of the cover 11 is also provided with a liquid inlet 18, which is used for both inputting and outputting lubricating oil. The liquid inlet 18 serves both input and output functions, simplifying the pipeline design and enabling the oil circulation to achieve a closed loop of "replenishment-circulation-return" through the same inlet. It also facilitates the replacement or replenishment of the oil later, improving the convenience of equipment maintenance.

[0037] Specific usage of this invention: When using this invention, first install the entire device onto the motorcycle frame and connect the relevant pipelines and lines. Ensure that each component is precisely aligned with the corresponding installation position according to the cavity partitions in the instruction manual to avoid subsequent power transmission or oil circulation being obstructed due to installation deviations. Subsequently, when the motorcycle is in use and its speed is below 60 km / h, the motorcycle control system will switch via the single-plate clutch 23. At this time, the single-plate clutch 23 engages with the central transmission gear 22 and disengages from the motor drive shaft 25, causing the motor 39 to rotate stably. The motor power is transmitted to the motor drive shaft 25 via the motor drive shaft 355, and then output after the transmission ratio is adjusted by the motor gear set 24, meeting the requirements for smooth power delivery and energy saving when the motorcycle is traveling at low speeds. Subsequently, when the motorcycle speed exceeds 60 km / h, the motorcycle control system will switch again via the single-plate clutch 23. At this time, the clutch engages with the motor drive shaft 25 and disengages from the central transmission gear 22, completing the power switching output from motor drive to internal combustion engine drive, ensuring stronger power support when traveling at high speeds. When the motor is rotating, the internal combustion engine is in neutral to avoid the internal combustion engine idling and generating additional energy consumption and heat. When the internal combustion engine is the output part, the single-plate clutch 23 drives the motor drive shaft 25 to partially reverse. During the reversal process, the motor is equivalent to a generator, charging the internal energy storage components of the motor, realizing energy recovery and utilization during driving, and improving energy utilization efficiency. Lubricating oil is then introduced through the inlet port 18 located at the bottom of the cover 11. This inlet port 18 serves both as an input and output port, allowing for the replenishment and return of lubricating oil through the same channel, simplifying pipeline connections while ensuring a stable oil supply. The lubricating oil then enters the liquid chamber, where it first flows into the motor drive groove 113. The arc-shaped groove design of the motor drive groove 113 guides the oil to distribute evenly, fully coating the surface of the mechanical second cam 151. Subsequently, the rotation of the drive motor 39 causes its drive shaft 355 to drive the motor transmission shaft 25 to rotate synchronously. The groove on the surface of the drive shaft 355 can increase the contact area of ​​the oil and improve the lubrication effect of the shaft. After the drive shaft 25 rotates, it will drive the second through hole tube 152 to rotate. The second through hole tube 152 is connected to the arc-shaped opening of the mechanical second cam 151. During the rotation, the oil in the drive groove 113 can be introduced into the cam, realizing comprehensive lubrication of the inner and outer sides of the cam, avoiding the internal wear problem caused by traditional external lubrication only covering the surface. Subsequently, when the second through-hole pipe 152 rotates, it cuts the cavity inside the motor drive slot 113. This cutting action, combined with the arc-shaped slot structure, enables the motor drive slot 113 to achieve reciprocating oil circulation by sucking in and discharging oil, thus aiding the flow of oil within each cavity. Furthermore, when the motor drive slot 113 is rotating and outputting, the first mechanical cam 131 also rotates synchronously with the mechanical transmission shaft 26. The first mechanical cam 131 also has an arc-shaped opening and the first through-hole pipe 132, and its rotation also creates a reciprocating sucking in and discharging action. Simultaneously, the liquid inside the motor drive slot 113 is sucked out and discharged through the reciprocating action of the first mechanical cam 131, achieving rapid oil flow between the motor drive slot 113 and the mechanical output slot 111. Additionally, the liquid entering the mechanical output slot 111 is discharged into the mechanical transmission shaft 353 through the first through-hole pipe 132. The grooves on the surface can guide the oil to be evenly distributed and quickly discharged. The discharged oil then enters the motor drive groove 113 again through the grooves on the surface of the motor drive shaft 355, thus forming a closed-loop oil circulation of reciprocating adsorption. During the circulation process, it can continuously lubricate the various drive shafts, cams, gears and other components, and also remove the heat generated by the operation of the components.

[0038] Furthermore, during the rotation of the mechanical second cam 151 to achieve suction and discharge, the permanent magnets in two opposite areas of the four regions on the surface of the mechanical second cam 151 will rotate synchronously. The magnetic field generated by the permanent magnets will form a magnetic force on the magnetic sheet assembly 173 at the front end of the magnetic heat dissipation blades 172 of the magnetic heat dissipation assembly 17, causing the magnetic sheet assembly 173 to rotate with the permanent magnets to form a rotating cutting magnetic field. When the magnetic sheet assembly 173 rotates and cuts, the magnetic heat dissipation blades 172 will also achieve stable rotation. This process does not require additional driving components; the rotation of the mechanical second cam 151 can drive the heat dissipation blades to operate, achieving energy-saving heat dissipation. The magnetic heat dissipation assembly 17 has a cavity and a diamond-shaped groove inside its heat dissipation cover 171. The diamond-shaped groove limits and fixes the heat dissipation blades, ensuring that the blades do not wobble when rotating. At the same time, the cavity and the diamond-shaped groove can guide the airflow direction, so that the rotating magnetic heat dissipation blades 172 can more efficiently dissipate the heat generated by the motor operation and oil friction in the motor drive slot 113. In addition, the outer end cover of the magnetic heat dissipation assembly 17 has multiple sets of ventilation holes. The ventilation holes provide airflow channels for the rotation of the heat dissipation blades. Hot air can be quickly discharged through the ventilation holes, and cold air can enter in time to replenish it, further improving the heat dissipation efficiency and ensuring that the temperature of the motor drive area is stable within a reasonable range. Furthermore, when the lubricating oil is circulating, it flows through the mechanical transmission gear 21, the intermediate transmission gear 22, the motor gear set 24, and other gear components in the drive gear mounting cavity, lubricating the gear meshing parts and reducing gear wear. At the same time, the heat generated by the gear rotation is conducted to the housing assembly 1 through the oil. The housing assembly 1 has multiple grooves on its surface, which increases the contact area between the housing and the air. When the vehicle is in motion, the external airflow can quickly flow through the grooves across the housing surface, passively cooling the housing assembly 1. At the same time, the airflow passes through the ventilation holes of the magnetic heat dissipation component 17, which assists in guiding the hot airflow discharged by the magnetic heat dissipation blades 172, accelerating the diffusion of hot airflow, further ensuring the heat dissipation effect of the lubricating oil, and keeping the lubricating oil temperature within a suitable range for lubrication and heat dissipation. Ultimately, this results in a lower overall equipment temperature, avoiding problems such as component performance degradation and accelerated aging caused by high temperatures, and ensuring long-term stable operation of the equipment. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An engine housing rear end cover, comprising a drive assembly (3), wherein a shielding cover assembly (2) is fixedly connected to the outer side of the drive assembly (3), and a housing assembly (1) is fixedly connected to the end of the shielding cover assembly (2), characterized in that: The enclosure assembly (1) includes a cover (11) and an inner partition (12). A liquid cavity is provided between the cover (11) and the inner partition (12). A drive gear mounting cavity is provided between the inner partition (12) and the shielding cover assembly (2). A drive unit mounting cavity is provided between the shielding cover assembly (2) and the drive unit assembly (3). The liquid chamber is provided with a mechanical output groove (111), a rotating mounting groove (112), and a motor drive groove (113). The rotating mounting groove (112) is used to fix the central shaft. The mechanical output groove (111) is provided with a mechanical first cam (131). The motor drive groove (113) is provided with a mechanical second cam (151). The mechanical output groove (111), the rotating mounting groove (112), and the motor drive groove (113) are connected to a liquid inlet (18). The liquid inlet (18) is connected to the mechanical output slot (111), the rotating mounting slot (112) and the motor drive slot (113) so that it is connected to the inside of the drive assembly (3) to form an oil circulation return flow, and the oil circulation return flow forms a rapid return flow to cool the liquid inside the engine.

2. The engine housing rear end cover according to claim 1, characterized in that: The drive assembly (3) includes a drive mounting cavity, which includes an internal combustion engine cover (31) and a motor drive unit (32). The internal combustion engine cover (31) has an internal combustion engine cavity (33) inside, and the motor drive unit (32) has a motor cavity (34) inside. The internal combustion engine cavity (33) and the motor cavity (34) have three sets of through holes inside, which connect the internal combustion engine cavity (33) and the motor cavity (34).

3. The engine housing rear end cover according to claim 1, characterized in that: The bottom inner wall of the box cover (11) is vertically provided with three sets of circular grooves from top to bottom. The three sets of circular grooves are, in order, a mechanical output groove (111), a rotating mounting groove (112), and a motor drive groove (113). A through connection hole is provided between the mechanical output groove (111), the rotating mounting groove (112), and the motor drive groove (113). The surface of the box partition (12) is provided with three sets of through holes. The three sets of through holes are corresponding to the mechanical output groove (111), the rotating mounting groove (112), and the motor drive groove (113). The mechanical output groove (111), the rotating mounting groove (112), and the motor drive groove (113) are provided with a mechanical output part (13), a central shaft fixing part (14), and a power output part (15) in sequence.

4. The rear end cover of an engine housing according to claim 3, characterized in that: The mechanical output part (13) includes a mechanical first cam (131), the outer side of which is provided with an arc-shaped opening, and a first through-hole tube (132) is fixedly connected to the mechanical first cam (131). The first through-hole tube (132) is provided with a through-hole tube (132) in the middle, and the first through-hole tube (132) communicates with the arc-shaped opening; the central shaft fixing part (14) includes a central cam (141), the central cam (141) is provided with an opening in the middle, and the opening communicates with the through-connecting hole; the power output part (15) includes a mechanical second cam (151), the outer side of which is also provided with an arc-shaped opening, and a second through-hole tube (152) is provided on the mechanical second cam (151). The second through-hole tube (152) is fixedly connected to the mechanical second cam (151), and a second through-hole tube (152) is provided on the second through-hole tube (152).

5. The rear end cover of an engine housing according to claim 4, characterized in that: The outer side of the box cover (11) is provided with a central heat dissipation part (16) and a magnetic heat dissipation assembly (17). The central heat dissipation part (16) is located above the magnetic heat dissipation assembly (17). The surface of the mechanical second cam (151) is divided into four areas. Permanent magnets are provided in two opposite areas of the four areas. The magnetic heat dissipation assembly (17) includes a heat dissipation cover (171). A cavity is provided inside the heat dissipation cover (171). A rhomboid groove is provided inside the cavity. Magnetic heat dissipation blades (172) are installed in the rhomboid groove. A magnetic sheet assembly (173) is provided at the front end of the magnetic heat dissipation blades (172). The magnetic sheet assembly (173) cooperates with the permanent magnet to make it rotate.

6. The rear end cover of an engine housing according to claim 5, characterized in that: The shielding cover assembly (2) includes an isolation base plate (35) and a shielding cover (28). The shielding cover (28) is fixedly connected to the surface of the isolation base plate (35). A drive gear mounting cavity is formed between the isolation base plate (35) and the housing assembly (1). A drive gear assembly is installed in the drive gear mounting cavity. The drive gear assembly includes a mechanical transmission shaft (26), a central fixed shaft (27), and a motor transmission shaft (25). The mechanical transmission shaft (26), the central fixed shaft (27), and the motor transmission shaft (25) are vertically distributed from top to bottom. One end of the mechanical transmission shaft (26) The mechanical transmission shaft (26) is fixedly connected to the first through-hole pipe (132), and a mechanical transmission gear (21) is fixedly installed on the surface of the mechanical transmission shaft (26). A central transmission gear (22) is fixedly connected to the surface of the central fixed shaft (27). The end of the central fixed shaft (27) is fixedly connected to the central cam (141). A single-plate clutch (23) is connected between the central transmission gear (22) and the central cam (141). One end of the motor transmission shaft (25) is fixedly connected to the second through-hole pipe (152), and a motor gear set (24) is fixedly installed on the surface of the motor transmission shaft (25).

7. The engine housing rear end cover according to claim 6, characterized in that: An internal combustion engine drive component is installed inside the internal combustion engine cavity (33). The internal combustion engine drive component includes a mechanical transmission shaft (353). The mechanical transmission shaft (353) passes through the isolation base plate (35). A crankshaft component is fixedly installed on the surface of the mechanical transmission shaft (353). An internal combustion engine compression module (38) is provided at the end connection of the crankshaft component. The internal combustion engine compression module (38) and the crankshaft component are installed inside the internal combustion engine cavity (33). The mechanical transmission shaft (353) is fixedly connected to the other end of the mechanical transmission shaft (26).

8. The rear end cover of an engine housing according to claim 7, characterized in that: The motor drive component is installed inside the motor cavity (34). The motor drive component includes a drive motor (39). The output end of the drive motor (39) is fixedly connected to a motor drive shaft (355), and the end of the drive motor (39) is fixedly connected to a motor heat dissipation blade (37).

9. The rear end cover of an engine housing according to claim 8, characterized in that: An inner isolation plate (351) is provided between the isolation base plate (35) and the internal combustion engine cover (31). A fixed central shaft (354) is fixedly installed on the inner isolation plate (351). The end of the fixed central shaft (354) is fixedly connected to the other end of the central fixed shaft (27). A heat dissipation module (36) is provided at the outer end of the mechanical transmission central shaft (353). The surfaces of the mechanical transmission central shaft (353) and the motor drive shaft (355) are provided with slots. The slots are located between the inner isolation plate (351) and the isolation base plate (35).

10. The rear end cover of an engine housing according to claim 9, characterized in that: The outer end of the shielding cover assembly (2) is fixedly connected to the end cover assembly (4), and the outer end of the mechanical transmission shaft (353) is provided with a heat dissipation module (36). The heat dissipation module (36) is located inside the end cover assembly (4). The surface of the housing assembly (1) is provided with multiple grooves. The outer end cover of the magnetic heat dissipation component (17) is provided with multiple sets of ventilation holes. The multiple sets of ventilation holes and the magnetic heat dissipation blades (172) achieve effective heat dissipation. The bottom of the housing cover (11) is also provided with a liquid inlet (18). The liquid inlet (18) is used to input and output lubricating oil.

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