Locking type engine

Abstract

The utility model relates to a locking type engine, which is fixedly locked on a frame of a motorcycle and comprises a crank case, an oil pan, an oil cylinder, a piston, a piston rod and a piston rod, the crankshaft is arranged in the crankcase in a penetrating manner and is driven by a power source of the locking type engine to pivot; the first transmission shaft penetrates through the crankcase and is driven by the crankshaft to pivot; an output shaft penetrates through the crankcase, is driven by the first transmission shaft to pivot, and finally drives a rear wheel to rotate through a chain or a belt; the oil pump is accommodated in the crankcase and is used for pumping lubricating oil; and a continuously variable transmission system. A transmission shaft oil duct is arranged in the first transmission shaft, at least one transmission shaft oil duct outlet is formed in the first transmission shaft, an output shaft oil duct is arranged in the output shaft, at least one output shaft oil duct outlet is formed in the output shaft, and the oil pump is connected with the transmission shaft oil duct and the output shaft oil duct through an oil way system. According to the locking type engine, lubricating oil can be stably provided for the transmission shaft and the output shaft located at the high position, and the purpose of precisely lubricating a transmission system is achieved.

Description

Technical Field

[0001] The utility model relates to a locking engine, especially a locking engine applicable to a scooter motorcycle. Background Art

[0002] Please refer to Figure 1 and Figure 2 , which are respectively a side view of an existing locking engine provided on a scooter motorcycle and a schematic view of the existing locking engine observed from the axial direction outside the crankcase. As shown in the figure, the existing locking engine 9 is locked on a frame 901 of a motorcycle 90, and there is no relative movement relationship between it and the frame 901. The locking engine 9 is connected to a rear wheel 98 by a swing arm 97, so as to reduce the unsprung mass of the shock absorber. In the prior art, the locking engine 9 includes a crankcase 92, a crankshaft 93, a transmission shaft 94 provided with a clutch 91, an output shaft 95 and an oil pump 96 for pumping lubricating oil. Among them, when observing the locking engine 9 from the axial direction: the axial center C2 position of the transmission shaft 94 is below the axial center C1 of the crankshaft 93, and the axial center C3 position of the output shaft 95 is above the axial center C1 of the crankshaft 93. Considering the above structural configuration of the locking engine 9 of the motorcycle 90, it has the difficulties of high output shaft 95, difficult lubrication and wide and flat oil pan.

[0003] Due to this, the inventor, with the spirit of active invention, urgently thought about a locking engine that can solve the above problems. After several research and experiments, the present utility model was finally completed. Summary of the Invention

[0004] The main purpose of the present utility model is to provide a locking engine. Through the engine configuration of the present utility model, the purpose of improving the lubrication of the transmission system can be achieved. At the same time, through the oil circuit system, the lubricating oil can be guided to at least one transmission shaft oil passage outlet of the transmission shaft oil passage and at least one output shaft oil passage outlet of the output shaft oil passage to splash outwards, providing heat dissipation and lubrication for the parts around the transmission shaft and the output shaft.

[0005] To achieve the above object, the present utility model provides a locking type engine, which is locked to a frame of a motorcycle and includes a crankcase, a crankshaft, a first transmission shaft, an output shaft, an oil pump and a continuously variable transmission system. The bottom of the crankcase is an oil pan, which can be used to accommodate lubricating oil liquid. The crankshaft is disposed through the crankcase and is pivoted by the power source of the locking type engine. The first transmission shaft is disposed through the crankcase and is pivoted by the crankshaft. The output shaft is disposed through the crankcase and is pivoted by the first transmission shaft, and finally drives a rear wheel to rotate through a chain or a belt. The oil pump is accommodated in the crankcase and is used to pump lubricating oil. The continuously variable transmission system includes a first transmission element, a second transmission element and a transmission connection member. The first transmission element is disposed at one end of the crankshaft, the second transmission element is disposed at one end of the first transmission shaft and corresponds to the first transmission element, and the first transmission element drives the second transmission element with the transmission connection member. Wherein, a transmission shaft oil passage is provided inside the first transmission shaft, and at least one transmission shaft oil passage outlet is opened therein. An output shaft oil passage is provided inside the output shaft, and at least one output shaft oil passage outlet is opened therein. The oil pump is connected to the transmission shaft oil passage and the output shaft oil passage through an oil circuit system, so that the lubricating oil is respectively guided to at least one transmission shaft oil passage outlet and at least one output shaft oil passage outlet through the oil circuit system and splashes outwards.

[0006] The above-mentioned first transmission shaft may be provided with a transmission gear housing and a clutch for driving the transmission gear housing to rotate. The output shaft is provided with an output shaft gear, and the transmission gear housing meshes with the output shaft gear.

[0007] The present utility model provides another locking type engine, which is locked on a frame of a motorcycle and includes a crankcase, a crankshaft, a first transmission shaft, a second transmission shaft, an output shaft, an oil pump and a continuously variable transmission system. The bottom of the crankcase is an oil pan, which can be used to accommodate lubricating oil liquid. The crankshaft is disposed through the crankcase and is driven to rotate by the power source of the locking type engine. The first transmission shaft is disposed through the crankcase and is driven to rotate by the crankshaft. The second transmission shaft is disposed through the crankcase and is driven to rotate by the first transmission shaft. The output shaft is disposed through the crankcase and is driven to rotate by the second transmission shaft, and finally drives a rear wheel to rotate through a chain or a belt. The oil pump is accommodated in the crankcase and is used to pump lubricating oil. The continuously variable transmission system includes a first transmission element, a second transmission element and a transmission connecting member. The first transmission element is disposed at one end of the crankshaft, the second transmission element is disposed at one end of the first transmission shaft and corresponds to the first transmission element, and the first transmission element drives the second transmission element with the transmission connecting member. Wherein, a transmission shaft oil passage is arranged inside the first transmission shaft, and at least one transmission shaft oil passage outlet is opened thereon. An output shaft oil passage is arranged inside the output shaft, and at least one output shaft oil passage outlet is opened thereon. The oil pump is connected to the transmission shaft oil passage and the output shaft oil passage through an oil circuit system, so that the lubricating oil is respectively guided to at least one transmission shaft oil passage outlet and at least one output shaft oil passage outlet through the oil circuit system and splashes outwards.

[0008] The above-mentioned first transmission shaft may be provided with a transmission gear housing and a clutch for driving the transmission gear housing to rotate. The second transmission shaft is provided with a second transmission gear, which includes a first tooth portion and a second tooth portion. The output shaft is provided with an output shaft gear. The transmission gear housing meshes with the first tooth portion, and the second tooth portion meshes with the output shaft gear.

[0009] The above-mentioned at least one transmission shaft oil passage outlet may include a first oil passage outlet adjacent to the clutch, a second oil passage outlet located inside the transmission gear housing, and a third oil passage outlet located on the first transmission shaft and adjacent to the second transmission element, so as to provide heat dissipation and lubrication for the peripheral parts of the transmission shaft.

[0010] The above-mentioned oil circuit system may include a main lubricating oil circuit and a transmission lubricating oil circuit. The oil pump is communicated with the main lubricating oil circuit, the main lubricating oil circuit is communicated with the transmission lubricating oil circuit, and the transmission lubricating oil circuit is respectively communicated with the transmission shaft oil passage and the output shaft oil passage.

[0011] A first throttling element may be arranged between the above-mentioned main lubricating oil circuit and the transmission lubricating oil circuit to achieve the functions of current limiting and pressure reduction, so that the oil pressure of the main lubricating oil circuit is higher than that of the transmission lubricating oil circuit.

[0012] A second throttling element may also be arranged between the above-mentioned transmission lubricating oil circuit and the transmission shaft oil passage to achieve the functions of current limiting and pressure reduction, so that the oil pressure of the transmission lubricating oil circuit is higher than that of the transmission shaft oil passage.

[0013] Viewed from the axial direction of the crankshaft, the axis of the first transmission shaft can be located below the axes of the crankshaft and the output shaft, and the axis of the output shaft can be higher than the axes of the crankshaft and the first transmission shaft.

[0014] The above summary and the following detailed description are exemplary and are intended to further illustrate the scope of the patent application of the present invention. Other objects and advantages of the present invention will be described in the subsequent specific embodiments and the accompanying drawings. Brief Description of the Drawings

[0015] Figure 1 It is a side view of an existing locked engine installed on a scooter motorcycle.

[0016] Figure 2 It is a schematic view of an existing locked engine outside the crankcase viewed from the axial direction.

[0017] Figure 3 It is a schematic view of a locked engine according to a preferred embodiment of the present invention outside the crankcase viewed from the axial direction.

[0018] Figure 4 It is a schematic view of a locked engine according to a preferred embodiment of the present invention inside the crankcase viewed from the axial direction.

[0019] Figure 5 It is Figure 4 the A-A cross-sectional view of

[0020] Main Element Symbol Description:

[0021] 1 Locked engine

[0022] 2 Crankcase

[0023] 20 Oil pan

[0024] 21 Left crankcase

[0025] 22 Right crankcase

[0026] 3 Crankshaft

[0027] 41 First transmission shaft

[0028] 41a Transmission shaft oil passage

[0029] 411 Transmission gear housing

[0030] 412 Clutch

[0031] 42 Second transmission shaft

[0032] 421 Second transmission gear

[0033] 4211 First tooth part

[0034] 4212 Second tooth part

[0035] 5 Output shaft

[0036] 5a Output shaft oil passage

[0037] 51 Output shaft gear

[0038] 6 Oil pump

[0039] 7 Oil circuit system

[0040] 70 Filter element

[0041] 71 Main lubricating oil passage

[0042] 72 Transmission lubricating oil passage

[0043] 73 First throttling element

[0044] 74 Second throttling element

[0045] 81 Continuously variable transmission system

[0046] 811 First transmission element

[0047] 812 Second transmission element

[0048] 813 Transmission connecting part

[0049] 9 Locking engine

[0050] 90 Motorcycle

[0051] 901 Frame

[0052] 91 Clutch

[0053] 92 Crankcase

[0054] 93 Crankshaft

[0055] 94 Transmission shaft

[0056] 95 Output shaft

[0057] 96 Oil pump

[0058] 97 Rear swing arm

[0059] 98 Rear wheel

[0060] b Support part

[0061] C1, C2, C3 Axes

[0062] H Output shaft oil passage outlet

[0063] h Transmission shaft oil passage outlet

[0064] h1 First oil passage outlet

[0065] h2 Second oil passage outlet

[0066] h3 Third oil passage outlet Detailed implementation manners

[0067] Please refer to Figures 3 to 5 , which are respectively a schematic view of a locked engine of the present utility model outside the crankcase and observed from the axial direction, a schematic view of the inside of the crankcase and observed from the axial direction, and Figure 4 A - A sectional view of. A locked engine 1 is shown in the figure, locked on a frame of a motorcycle, and includes a crankcase 2, a crankshaft 3, a first transmission shaft 41, a clutch 412, a second transmission shaft 42, an output shaft 5, an oil pump 6, and a continuously variable transmission system 81.

[0068] In this embodiment, the crankcase 2 is composed of a left crankcase 21 and a right crankcase 22. The bottom of the crankcase 2 is an oil pan 20, which can be used to accommodate the lubricating oil liquid flowing back here. The crankshaft 3 passes through the crankcase 2 and is driven to rotate by the power source of the locked engine 1. The first transmission shaft 41 passes through the crankcase 2 and is driven to rotate by the crankshaft 3. It transmits the power of the crankshaft 3 to the first transmission shaft 41 through the continuously variable transmission system 81. The continuously variable transmission system 81 includes a first transmission element 811, a second transmission element 812, and a transmission connecting member 813. The first transmission element 811 is arranged at one end of the crankshaft 3, the second transmission element 812 is arranged at one end of the first transmission shaft 41 and corresponds to the first transmission element 811. The first transmission element 811 drives the second transmission element 812 with the transmission connecting member. In this embodiment, the transmission connecting member can be a belt.

[0069] In addition, the second transmission shaft 42 is disposed through the crankcase 2 and is driven by the first transmission shaft 41 to pivot. The output shaft 5 is disposed through the crankcase 2 and is driven by the second transmission shaft 42 to pivot, and finally drives a rear wheel to rotate through a chain or a belt. Wherein, the first transmission shaft 41 is provided with a transmission gear housing 411 and a clutch 412 for driving the transmission gear housing 411 to rotate. The second transmission shaft 42 is provided with a second transmission gear 421, which includes a first tooth portion 4211 and a second tooth portion 4212. The output shaft 5 is provided with an output shaft gear 51. The transmission gear housing 411 meshes with the first tooth portion 4211, and the second tooth portion 4212 meshes with the output shaft gear 51, so as to transmit the power of the first transmission shaft 41 to the output shaft 5 through the transmission gear housing 411, the second transmission gear 421 and the output shaft gear 51, and finally drive a rear wheel to rotate through a chain or a belt. The oil pump 6 is accommodated in the crankcase 2 for pumping lubricating oil. Wherein, when observed from the axial direction of the crankshaft 3, the axis of the first transmission shaft 41 is located below the axes of the crankshaft 3 and the output shaft 5, and the axis of the output shaft 5 is higher than the axes of the crankshaft 3 and the first transmission shaft 41.

[0070] In this embodiment, a transmission shaft oil passage 41a is provided inside the first transmission shaft 41, and three transmission shaft oil passage outlets h are opened therein, including a first oil passage outlet h1 adjacent to the clutch 412, a second oil passage outlet h2 located inside the transmission gear housing 411, and a third oil passage outlet h3 located on the first transmission shaft 41 and adjacent to the second transmission element 812, for providing heat dissipation lubrication for the clutch 412 and the peripheral parts of the first transmission shaft 41 (such as the support parts b at both ends of the first transmission shaft 41, the transmission gear housing 411 and the second transmission gear 421). In addition, an output shaft oil passage 5a is provided inside the output shaft 5, and an output shaft oil passage outlet H is opened therein, for providing heat dissipation lubrication for the peripheral parts of the output shaft 5 (such as the output shaft gear 51 at the highest point inside the engine and the support parts b at both ends of the output shaft 5). The number of the above-mentioned transmission shaft oil passage outlets h and output shaft oil passage outlets H is not limited to this, and other numerical values are also possible.

[0071] Furthermore, an oil pump 6 is connected to a transmission shaft oil passage 41a and an output shaft oil passage 5a through an oil passage system 7. In this embodiment, the oil passage system 7 includes a main lubricating oil passage 71 and a transmission lubricating oil passage 72. The oil pump 6 communicates with the main lubricating oil passage 71, the main lubricating oil passage 71 communicates with the transmission lubricating oil passage 72, and the transmission lubricating oil passage 72 communicates with the transmission shaft oil passage 41a and the output shaft oil passage 5a respectively. Among them, a filtering element 70 is further provided between the oil pump 6 and the oil passage system 7, so that the lubricating oil in the oil pump 6 is filtered and then enters the oil passage system 7. A first throttling element 73 is provided between the main lubricating oil passage 71 and the transmission lubricating oil passage 72 to achieve the functions of current limiting and pressure reduction, so that the oil pressure of the main lubricating oil passage 71 is higher than that of the transmission lubricating oil passage 72. A second throttling element 74 is provided between the transmission lubricating oil passage 72 and the transmission shaft oil passage 41a to achieve the functions of current limiting and pressure reduction, so that the oil pressure of the transmission lubricating oil passage 72 is higher than that of the transmission shaft oil passage 41a. Therefore, the lubricating oil can be guided through the oil passage system 7 to at least one transmission shaft oil passage outlet h and an output shaft oil passage outlet H respectively and splash outwards, providing heat dissipation lubrication for the peripheral parts of the first transmission shaft 41 and the output shaft 5.

[0072] Thus, the purpose of lubricating the transmission system of the present utility model can be improved. The lubricating performance of the oil pump refers to the functions of the oil pump 6 sucking the lubricating oil from the oil pan 20 and pushing the distribution of the lubricating oil passage to lubricate, dissipate heat and stably provide oil pressure for components such as the crankshaft, piston, cylinder head, clutch, transmission gear, etc. The lubricating oil scattered everywhere is finally recovered to the oil pan 20 at the bottom of the crankcase 2 through the space inside or on the side of the crankcase 2 that communicates with the oil pan 20.

[0073] Furthermore, the number of transmission shafts of the present utility model is not limited to two transmission shafts (the first transmission shaft 41 and the second transmission shaft 42), and can also be designed as a single transmission shaft (not shown in the figure). If referring to Figure 5 it, the transmission gear housing 411 of the first transmission shaft 41 can be directly designed to mesh with the output shaft gear 51.

[0074] The above embodiments are only examples for convenience of description. The scope of the rights claimed by the present utility model shall be subject to the scope claimed in the patent application documents, rather than being limited to the above embodiments.

Claims

1. A fixed-lock engine, fixed to a frame of a motorcycle, characterized in that: Included are: a crankcase with an oil sump at the bottom; A crankshaft is disposed in the crankcase and is driven to pivot by the power source of the solid-lock engine; a first transmission shaft, passing through the crankcase and driven to pivot by the crankshaft; An output shaft is disposed through the crankcase, is driven by the first transmission shaft to pivot, and finally drives a rear wheel to rotate through a chain or a belt; an oil pump, housed in the crankcase, for pumping lubricating oil; and A continuously variable transmission system, comprising a first transmission element, a second transmission element and a transmission connection member, wherein the first transmission element is disposed at one end of the crankshaft, the second transmission element is disposed at one end of the first transmission shaft and corresponds to the first transmission element, and the first transmission element drives the second transmission element through the transmission connection member; Among them, a transmission shaft oil channel is arranged inside the first transmission shaft, which has at least one transmission shaft oil channel outlet, and an output shaft oil channel is arranged inside the output shaft, which has at least one output shaft oil channel outlet. The oil pump connects the transmission shaft oil channel and the output shaft oil channel with an oil circuit system, so that the lubricating oil is respectively guided to the at least one transmission shaft oil channel outlet and the at least one output shaft oil channel outlet through the oil circuit system to splash outward.

2. The fixed-lock engine according to claim 1, characterized in that: The first transmission shaft is provided with a transmission gear housing and a clutch for driving the transmission gear housing to rotate. The output shaft is provided with an output shaft gear, and the transmission gear housing meshes with the output shaft gear.

3. A fixed engine, fixed to a frame of a motorcycle, characterized in that: Included are: a crankcase with an oil sump at the bottom; A crankshaft is disposed in the crankcase and is driven to pivot by the power source of the solid-lock engine; a first transmission shaft, passing through the crankcase and driven to pivot by the crankshaft; a second transmission shaft, passing through the crankcase and driven to pivot by the first transmission shaft; An output shaft is disposed through the crankcase, is driven by the second transmission shaft to pivot, and finally drives a rear wheel to rotate through a chain or a belt; an oil pump, housed in the crankcase, for pumping lubricating oil; and A continuously variable transmission system, comprising a first transmission element, a second transmission element and a transmission connection member, wherein the first transmission element is disposed at one end of the crankshaft, the second transmission element is disposed at one end of the first transmission shaft and corresponds to the first transmission element, and the first transmission element drives the second transmission element through the transmission connection member; Among them, a transmission shaft oil channel is arranged inside the first transmission shaft, which has at least one transmission shaft oil channel outlet, and an output shaft oil channel is arranged inside the output shaft, which has at least one output shaft oil channel outlet. The oil pump connects the transmission shaft oil channel and the output shaft oil channel with an oil circuit system, so that the lubricating oil is respectively guided to the at least one transmission shaft oil channel outlet and the at least one output shaft oil channel outlet through the oil circuit system to splash outward.

4. The fixed-lock engine according to claim 3, characterized in that: The first transmission shaft is provided with a transmission gear housing and a clutch for driving the transmission gear housing to rotate, the second transmission shaft is provided with a second transmission gear, which includes a first tooth portion and a second tooth portion, the output shaft is provided with an output shaft gear, the transmission gear housing meshes with the first tooth portion, and the second tooth portion meshes with the output shaft gear.

5. The fixed-lock engine according to claim 2 or claim 4, characterized in that: The at least one transmission shaft oil passage outlet includes a first oil passage outlet adjacent to the clutch, a second oil passage outlet located inside the transmission gear housing, and a third oil passage outlet located on the first transmission shaft and adjacent to the second transmission element.

6. The fixed-lock engine according to claim 1 or claim 3, characterized in that: The oil circuit system includes a main lubricating oil circuit and a transmission lubricating oil circuit. The oil pump is connected to the main lubricating oil circuit, the main lubricating oil circuit is connected to the transmission lubricating oil circuit, and the transmission lubricating oil circuit is respectively connected to the transmission shaft oil passage and the output shaft oil passage.

7. The locked engine according to claim 6, characterized in that: A first throttling element is arranged between the main lubricating oil circuit and the transmission lubricating oil circuit.

8. The solid-lock engine according to claim 6, characterized in that: A second throttling element is arranged between the transmission lubricating oil circuit and the transmission shaft oil passage.

9. The fixed-lock engine according to claim 1 or claim 3, characterized in that: Observing from the axial direction of the crankshaft, the axis of the first transmission shaft is located below the axis of the crankshaft and the axis of the output shaft, and the axis of the output shaft is higher than the axis of the crankshaft and the axis of the first transmission shaft.

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