V-cylinder engine arrangement structure and motorcycle

Abstract

The utility model discloses a V-cylinder engine arrangement structure and a motorcycle, and aims to solve the problem that the structure is not compact when a CVT (continuously variable transmission) and a V-cylinder engine are arranged in a matched manner in the prior art. The technical problem is solved through the following technical scheme that the V-cylinder engine comprises a V-cylinder engine and a CVT transmission; the CVT comprises a front clutch and a rear clutch, and the V-cylinder engine comprises a crankshaft; the front clutch and the water pump are arranged on the two sides of the V-cylinder engine in the axial direction of the crankshaft respectively. The arrangement mode that the water pump and the front clutch are arranged on the two sides of the V-cylinder engine respectively is adopted, so that the utilization rate of the overall space can be improved, and the overall structure can be more compact. In addition, the water pump and the front clutch are arranged on the two sides of the V-cylinder engine respectively, so that the overall balance performance of the engine is better.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle engines, and more specifically, to a V-cylinder engine arrangement structure and a motorcycle. Background Art

[0002] The V-cylinder engine has less vibration and the pistons of the cylinders on both sides can offset the inertia when working, so the vehicle is more stable when running. In addition, the low-torque performance of the V-twin engine is relatively outstanding, and the vehicle accelerates more powerfully, which is deeply loved by motorcycle riding enthusiasts.

[0003] The CVT transmission mainly includes the driving wheel, the driven wheel, the transmission belt and the hydraulic pump. It realizes the function of stepless speed change by changing the transmission radius of the two cone wheels to match different transmission ratios. It is also widely loved by motorcycle enthusiasts because of its good smoothness and no need for gear shifting.

[0004] The prior art lacks a CVT transmission, and the structure is not compact when arranged in conjunction with a V-cylinder engine, which occupies a large arrangement space on the motorcycle.

[0005] The Chinese patent announcement number is CN215761937U, and the announcement date is February 8, 2022. The application name is an engine and a motorcycle thereof. The application discloses an engine layout. Although it also discloses a more compact engine layout scheme, it does not involve the layout of the V-cylinder engine and CVT transmission. Utility Model Content

[0006] The utility model overcomes the problem in the prior art that the CVT transmission and the V-cylinder engine are not compact in structure when they are arranged in combination, and provides a V-cylinder engine arrangement structure, which can reasonably arrange the CVT transmission and the V-cylinder engine, making the overall structure more compact and the overall stability stronger.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: a V-cylinder engine layout structure, including: a V-cylinder engine and a CVT transmission; the CVT transmission includes a front clutch and a rear clutch, and the V-cylinder engine includes a crankshaft; the front clutch and the water pump are respectively arranged on both sides of the V-cylinder engine along the axial direction of the crankshaft.

[0008] The utility model adopts the arrangement mode of arranging the water pump and the front clutch on both sides of the V-cylinder engine, so that the utilization rate of the overall space can be improved, and the overall structure can be more compact. In addition, by arranging the water pump and the front clutch on both sides of the V-cylinder engine, the overall balance performance of the engine is also better.

[0009] Preferably, the front clutch is directly connected to the crankshaft.

[0010] Improve transmission efficiency and make the overall structure more compact.

[0011] Preferably, it also includes a balancing shaft arranged parallel to the crankshaft, the balancing shaft is connected to the crankshaft through a first transmission assembly, the water pump and the balancing shaft are connected through a second transmission assembly, and the crankshaft drives the water pump to operate through the first transmission assembly, the balancing shaft and the second transmission assembly.

[0012] The first transmission assembly cooperates with the second transmission assembly so that structures such as a balancing shaft can be arranged as required.

[0013] Preferably, the first transmission assembly includes a first transmission gear and a second transmission gear meshing with each other, the first transmission gear is arranged on the crankshaft, and the second transmission gear is arranged on the balance shaft.

[0014] Transmission is carried out through two transmission gears, so that the balance shaft can be directly driven to rotate, thereby improving transmission efficiency.

[0015] Preferably, the second transmission assembly includes a third transmission gear and a fourth transmission gear, the third transmission gear is arranged on the balance shaft, and the fourth transmission gear is connected to the water pump through the water pump shaft.

[0016] Transmission is carried out through two transmission gears, so that the water pump shaft can be directly driven to rotate, thereby improving transmission efficiency.

[0017] Preferably, a crank is provided on the crankshaft, an oil pump is provided between the front clutch and the crank, and the oil pump is connected to the crankshaft via a third transmission assembly.

[0018] By connecting through the third transmission assembly, the position of the oil pump can be arranged according to needs, making the overall structure more compact.

[0019] Preferably, the third transmission assembly includes a driving wheel and a driven wheel, the driving wheel and the driven wheel are connected by a transmission belt, the driving wheel is fixed on the crankshaft, and the driven wheel is connected to the oil pump.

[0020] By transmitting power through a drive belt, the oil pump can be arranged as needed, thereby improving the overall space utilization.

[0021] Preferably, the oil pump is arranged below the crankshaft.

[0022] Since the front clutch is large, a large space is formed between the front clutch and the V-cylinder engine. Therefore, by arranging the oil pump under the first transmission gear, this part of the space can be utilized, making the overall structure more compact.

[0023] The present application also discloses a motorcycle, comprising the above-mentioned V-cylinder engine arrangement structure.

[0024] The present application adopts a CVT transmission plus a V-cylinder engine arrangement, so that the motorcycle does not need to perform gear shifting operations, and has the characteristics of easy operation; at the same time, the structure is simple, the parts are relatively few, the structure is compact, and the production cost is reduced.

[0025] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts the arrangement mode of arranging the water pump and the front clutch on both sides of the V-cylinder engine, so that the overall space utilization rate can be improved, and the overall structure can be more compact. In addition, by arranging the water pump and the front clutch on both sides of the V-cylinder engine, the overall balance performance of the engine is also better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0027] Figure 2 It is a three-dimensional structural diagram of the utility model from another angle.

[0028] Figure 3 It is a three-dimensional structural diagram of the utility model from another angle.

[0029] Figure 4 It is a side view of the utility model.

[0030] In the figure: 1, V-cylinder engine, 11, crankshaft, 12, crank, 13, first transmission gear, 14, driving wheel, 15, transmission belt;

[0031] 2. CVT transmission, 21. front clutch, 22. rear clutch;

[0032] 3. water pump, 31. water pump shaft, 32. fourth transmission gear;

[0033] 4. balance shaft, 41. second transmission gear, 42. third transmission gear;

[0034] 5. Oil pump, 51. Driven wheel. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0036] Example 1: Reference Figures 1 to 4As shown, a V-cylinder engine arrangement structure includes: a V-cylinder engine 1 and a CVT transmission 2; the CVT transmission 2 includes a front clutch 21 and a rear clutch 22, and the V-cylinder engine 1 includes a crankshaft 11; the front clutch 21 and the water pump 3 are respectively arranged on both sides of the V-cylinder engine 1 along the axial direction of the crankshaft 11.

[0037] In the present application, since it is necessary to arrange the front clutch 21 on one side of the V-cylinder engine 1, and the space occupied by the front clutch 21 is relatively large, a water pump 3 is arranged on the other side of the V-cylinder engine 1. By arranging the water pump 3 and the front clutch 21 on both sides of the V-cylinder engine 1, the overall space utilization rate can be improved, and the overall structure can be more compact. In addition, by arranging the water pump 3 and the front clutch 21 on both sides of the V-cylinder engine 1, the overall balance performance of the engine is also better.

[0038] Example 2: Reference Figures 1 to 4 As shown, a V-cylinder engine arrangement structure includes: a V-cylinder engine 1 and a CVT transmission 2; the CVT transmission 2 includes a front clutch 21 and a rear clutch 22, and the V-cylinder engine 1 includes a crankshaft 11; the front clutch 21 and the water pump 3 are respectively arranged on both sides of the V-cylinder engine 1 along the axial direction of the crankshaft 11.

[0039] The front clutch 21 and the rear clutch 22 are driven by a belt, so that the power can be transmitted from the V-cylinder engine 1 to the rear clutch 22 through the action of the front clutch 21 and the belt.

[0040] The connecting rod of the V-cylinder engine 1 is connected to the crankshaft 11, on which two cranks 12 are arranged. The connecting rod of the V-cylinder engine 1 is connected to the crankshaft 11 located between the two cranks 12, and the piston drives the connecting rod to move, so that the power generated by the engine is transmitted to the crankshaft 11. Figure 4 As shown), the front clutch 21 and the water pump 3 are respectively arranged on both sides of the V-cylinder engine 1 (the front clutch 21 is located on the left side of the V-cylinder engine 1, and the water pump 3 is located on the right side of the V-cylinder engine 1), and the front clutch 21 and the water pump 3 are respectively located on both sides of the two cranks 12.

[0041] The front clutch 21 is connected to one end of the crank 12. The front clutch 21 can be directly driven to rotate by the crank 12. For easy installation, the crank 12 and the front clutch 21 in this embodiment are connected by a spline matching method.

[0042] In one embodiment, it also includes a balancing shaft 4 arranged parallel to the crankshaft 11, the balancing shaft 4 is connected to the crankshaft 11 through a first transmission assembly, the water pump 3 and the balancing shaft 4 are connected through a second transmission assembly, and the power on the crankshaft 11 is transmitted to the water pump 3 through the first transmission assembly, the balancing shaft 4 and the second transmission assembly, thereby driving the water pump 3 to rotate.

[0043] The first transmission assembly includes a first transmission gear 13 and a second transmission gear 41 that mesh with each other. The first transmission gear 13 is arranged on the crankshaft 11 in a spline matching manner, so that when the crankshaft 11 rotates in the circumferential direction, it can drive the first transmission gear 13 to transmit, and the first transmission gear 13 is fixedly arranged at one end of the crankshaft 11 close to the front clutch 21. The second transmission gear 41 is fixedly arranged on the balance shaft 4, so that the second transmission gear 41 can drive the balance shaft 4 to rotate. Therefore, through the cooperation of the first transmission gear 13 and the second transmission gear 41, the power on the crankshaft 11 can be transmitted to the second transmission gear 41 through the first transmission gear 13, and then transmitted to the balance shaft 4 through the second transmission gear 41.

[0044] The second transmission assembly adopts a transmission method similar to that of the first transmission assembly. The second transmission assembly includes a third transmission gear 42 and a fourth transmission gear 42. The third transmission gear 42 is arranged on the balance shaft 4, and the fourth transmission gear 42 is connected to the water pump 3 through the water pump shaft 31. The third transmission gear 42 is fixedly arranged at the end of the balance shaft 4 away from the second transmission gear 41, that is, the second transmission gear 41 and the third transmission gear 42 are respectively arranged at both ends of the balance shaft 4, and from the side view of the V-cylinder engine 1 (as shown in FIG. Figure 4 As shown in the figure, the second transmission gear 41 is located on the left side of the two cranks 12, and the third transmission gear 42 is located on the right side of the two cranks 12. This makes the overall structure more stable and compact, and the balance performance of the V-cylinder engine 1 is better. The fourth transmission gear 42 is fixedly arranged on the water pump shaft 31, and the fourth transmission gear 42 is meshed with the third transmission gear 42. The water pump 3 is arranged at the end of the water pump shaft 31 away from the fourth transmission gear, that is, the water pump 3 and the fourth gear are respectively arranged at both ends of the water pump shaft 31. From the side of the V-cylinder engine 1, the water pump 3 is located on the right side of the third transmission gear 42, that is, the distance between the water pump shaft 31 and the V-cylinder engine 1 is farther than the distance between the third transmission gear 42 and the V-cylinder engine 1.

[0045] Through the cooperation between the third transmission gear 42 and the fourth transmission gear 42 , when the balancing shaft 4 rotates, the third transmission gear 42 can be driven to rotate, thereby driving the fourth gear on the balancing shaft 4 to rotate, so that the balancing shaft 4 can drive the water pump 3 to rotate.

[0046] In the present application, since it is necessary to arrange the front clutch 21 on one side of the V-cylinder engine 1, and the space occupied by the front clutch 21 is relatively large, a water pump 3 is arranged on the other side of the V-cylinder engine 1. By arranging the water pump 3 and the front clutch 21 on both sides of the V-cylinder engine 1, the overall space utilization can be improved, and the overall structure can be more compact. In addition, by arranging the water pump 3 and the front clutch 21 on both sides of the V-cylinder engine 1, the overall balance performance of the engine is also better.

[0047] Example 3: Reference Figures 1 to 4 As shown, a V-cylinder engine arrangement structure includes: a V-cylinder engine 1 and a CVT transmission 2; the CVT transmission 2 includes a front clutch 21 and a rear clutch 22, and the V-cylinder engine 1 includes a crankshaft 11; the front clutch 21 and the water pump 3 are respectively arranged on both sides of the V-cylinder engine 1 along the axial direction of the crankshaft 11.

[0048] The front clutch 21 and the rear clutch 22 are driven by a belt, so that the power can be transmitted from the V-cylinder engine 1 to the rear clutch 22 through the action of the front clutch 21 and the belt.

[0049] The connecting rod of the V-cylinder engine 1 is connected to the crankshaft 11, on which two cranks 12 are arranged. The connecting rod of the V-cylinder engine 1 is connected to the crankshaft 11 located between the two cranks 12, and the piston drives the connecting rod to move, so that the power generated by the engine is transmitted to the crankshaft 11. Figure 4 As shown), the front clutch 21 and the water pump 3 are respectively arranged on both sides of the V-cylinder engine 1 (the front clutch 21 is located on the left side of the V-cylinder engine 1, and the water pump 3 is located on the right side of the V-cylinder engine 1), and the front clutch 21 and the water pump 3 are respectively located on both sides of the two cranks 12.

[0050] The front clutch 21 is connected to one end of the crank 12. The front clutch 21 can be directly driven to rotate by the crank 12. For easy installation, the crank 12 and the front clutch 21 in this embodiment are connected by a spline matching method.

[0051] In one embodiment, it also includes a balancing shaft 4 arranged parallel to the crankshaft 11, the balancing shaft 4 is connected to the crankshaft 11 through a first transmission assembly, the water pump 3 and the balancing shaft 4 are connected through a second transmission assembly, and the power on the crankshaft 11 is transmitted to the water pump 3 through the first transmission assembly, the balancing shaft 4 and the second transmission assembly, thereby driving the water pump 3 to rotate.

[0052] The first transmission assembly includes a first transmission gear 13 and a second transmission gear 41 that mesh with each other. The first transmission gear 13 is arranged on the crankshaft 11 in a spline matching manner, so that when the crankshaft 11 rotates in the circumferential direction, it can drive the first transmission gear 13 to transmit, and the first transmission gear 13 is fixedly arranged at one end of the crankshaft 11 close to the front clutch 21. The second transmission gear 41 is fixedly arranged on the balance shaft 4, so that the second transmission gear 41 can drive the balance shaft 4 to rotate. Therefore, through the cooperation of the first transmission gear 13 and the second transmission gear 41, the power on the crankshaft 11 can be transmitted to the second transmission gear 41 through the first transmission gear 13, and then transmitted to the balance shaft 4 through the second transmission gear 41.

[0053] The second transmission assembly adopts a transmission method similar to that of the first transmission assembly. The second transmission assembly includes a third transmission gear 42 and a fourth transmission gear 42. The third transmission gear 42 is arranged on the balance shaft 4, and the fourth transmission gear 42 is connected to the water pump 3 through the water pump shaft 31. The third transmission gear 42 is fixedly arranged at the end of the balance shaft 4 away from the second transmission gear 41, that is, the second transmission gear 41 and the third transmission gear 42 are respectively arranged at both ends of the balance shaft 4, and from the side view of the V-cylinder engine 1 (as shown in FIG. Figure 4 As shown in the figure, the second transmission gear 41 is located on the left side of the two cranks 12, and the third transmission gear 42 is located on the right side of the two cranks 12. This makes the overall structure more stable and compact, and the balance performance of the V-cylinder engine 1 is better. The fourth transmission gear 42 is fixedly arranged on the water pump shaft 31, and the fourth transmission gear 42 is meshed with the third transmission gear 42. The water pump 3 is arranged at the end of the water pump shaft 31 away from the fourth transmission gear, that is, the water pump 3 and the fourth gear are respectively arranged at both ends of the water pump shaft 31. From the side of the V-cylinder engine 1, the water pump 3 is located on the right side of the third transmission gear 42, that is, the distance between the water pump shaft 31 and the V-cylinder engine 1 is farther than the distance between the third transmission gear 42 and the V-cylinder engine 1.

[0054] Through the cooperation between the third transmission gear 42 and the fourth transmission gear 42 , when the balancing shaft 4 rotates, the third transmission gear 42 can be driven to rotate, thereby driving the fourth gear on the balancing shaft 4 to rotate, so that the balancing shaft 4 can drive the water pump 3 to rotate.

[0055] In order to make the overall structure more compact, in this embodiment, an oil pump 5 is provided between the front clutch 21 and the crank 12 , and the oil pump 5 is connected to the crankshaft 11 through a third transmission assembly. The oil pump 5 is provided below the crankshaft 11 .

[0056] The third transmission assembly includes a driving wheel 14 and a driven wheel 51, which are connected by a transmission belt 15. The driving wheel 14 is fixedly arranged on the crankshaft 11, and the driving wheel 14 is fixedly arranged between the front clutch 21 and the first transmission gear 13, and the driven wheel 51 is connected to the oil pump 5. From the side of the V-cylinder engine 1, the oil pump 5 and the first transmission gear 13 are both arranged on the left side of the V-cylinder engine 1, and the oil pump 5 is arranged below the first transmission gear 13. Since the front clutch 21 is relatively large, a relatively large space is formed between the front clutch 21 and the V-cylinder engine 1. Therefore, by arranging the oil pump 5 below the first transmission gear 13, this part of the space can be utilized, so that the overall structure can be more compact, and the overall stability of the V-cylinder engine 1 is also good.

[0057] In the present application, since it is necessary to arrange the front clutch 21 on one side of the V-cylinder engine 1, and the space occupied by the front clutch 21 is relatively large, a water pump 3 is arranged on the other side of the V-cylinder engine 1. By arranging the water pump 3 and the front clutch 21 on both sides of the V-cylinder engine 1, the overall space utilization can be improved, and the overall structure can be more compact. In addition, by arranging the water pump 3 and the front clutch 21 on both sides of the V-cylinder engine 1, the overall balance performance of the engine is also better.

[0058] Embodiment 4: A motorcycle comprising the V-cylinder engine arrangement structure described in the above-mentioned embodiment 1 or embodiment 2 or embodiment 3.

[0059] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A V-cylinder engine arrangement structure, characterized in that: include: A V-cylinder engine and a CVT transmission; the CVT transmission includes a front clutch and a rear clutch, and the V-cylinder engine includes a crankshaft; the front clutch and the water pump are respectively arranged on both sides of the V-cylinder engine along the axial direction of the crankshaft.

2. The V-cylinder engine arrangement structure according to claim 1, characterized in that: The front clutch is directly connected to the crankshaft.

3. The V-cylinder engine arrangement structure according to claim 1, characterized in that: It also includes a balancing shaft arranged parallel to the crankshaft, the balancing shaft is connected to the crankshaft through a first transmission assembly, the water pump and the balancing shaft are connected through a second transmission assembly, and the crankshaft drives the water pump to operate through the first transmission assembly, the balancing shaft and the second transmission assembly.

4. The V-cylinder engine arrangement structure according to claim 3 is characterized in that: The first transmission assembly includes a first transmission gear and a second transmission gear meshing with each other, the first transmission gear is arranged on the crankshaft, and the second transmission gear is arranged on the balance shaft.

5. The V-cylinder engine arrangement structure according to claim 3, characterized in that: The second transmission assembly includes a third transmission gear and a fourth transmission gear. The third transmission gear is arranged on the balance shaft, and the fourth transmission gear is connected to the water pump through the water pump shaft.

6. The V-cylinder engine arrangement structure according to any one of claims 1 to 5, characterized in that: A crank is arranged on the crankshaft, an oil pump is arranged between the front clutch and the crank, and the oil pump is connected to the crankshaft through a third transmission component.

7. The V-cylinder engine arrangement structure according to claim 6, characterized in that: The third transmission assembly includes a driving wheel and a driven wheel, the driving wheel and the driven wheel are connected by a transmission belt, the driving wheel is fixed on the crankshaft, and the driven wheel is connected to the oil pump.

8. The V-cylinder engine arrangement structure according to claim 6, characterized in that: The oil pump is arranged below the crankshaft.

9. A motorcycle, characterized in that: It comprises a V-cylinder engine arrangement structure as described in any one of claims 1 to 8.

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