CN218266052U - Engine and motorcycle - Google Patents

Abstract

An embodiment of the utility model provides an engine and motorcycle, the engine includes: the mould assembling box is provided with a main oil duct which penetrates through the mould assembling box from left to right; the oil plug is plugged at the end part of the main oil gallery; the crankshaft is rotatably arranged on the mould assembling box; the oil pump, the oil pump install in on the mould assembling, just the oil pump is located on the position of the rear below of bent axle, the one end of main oil gallery is located in the oil pump, just the oil pump covers the oil blockage of shutoff on this end. The technical problems that in the prior art, a lubricating passage flowing to a crankshaft is arranged in the front of an oil pump, so that the end face of the lubricating passage is higher than the sealing surface of the oil pump, the machining depth is deep, and the difficulty of drilling machining is increased are effectively solved.

Description

Engine and motorcycle

Technical Field

The utility model relates to a technical field of motorcycle especially relates to an engine and motorcycle.

Background

The motorcycle comprises two wheels or three wheels, is driven by electric power, fuel oil or hybrid power and the like, is light and flexible, can run quickly, is widely used for patrol, passenger and goods transportation and the like, and is also used as sports equipment. In a large direction, motorcycles are classified into street cars, road racing motorcycles, off-road motorcycles, cruise vehicles, and station wagons.

Currently, engine oil of a motorcycle is sucked into an oil pump from an oil suction port at the bottom of an oil pan, is pressurized and then pumped into an oil filter through an introduction passage (oil passage) formed inside a crankcase, and is filtered and then flows to each part requiring lubrication. In the related art, a lubricating passage flowing to a crankshaft is arranged in the front of an oil pump, so that the end face of the lubricating passage is higher than the sealing surface of the oil pump, the machining depth is deeper, and the difficulty of drilling machining is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing an engine and motorcycle for the lubricated route of the flow direction bent axle of solving correlation technique arranges on the place ahead position of oil pump, makes lubricated route end face position be higher than the sealed face of oil pump, and it is darker to lead to the depth of cut, has increased the technical problem of the degree of difficulty of drilling processing.

In order to solve the technical problem, the embodiment of the utility model adopts the following technical scheme:

an embodiment of the utility model provides an engine, the engine includes:

the mould assembling box is provided with a main oil duct which penetrates through the mould assembling box from left to right;

the oil plug is plugged at the end part of the main oil gallery;

the crankshaft is rotatably arranged on the mould assembling box;

the oil pump, the oil pump install in on the mould assembling, just the oil pump is located on the position of the rear below of bent axle, the one end of main oil gallery is located in the oil pump, just the oil pump covers the oil blockage of shutoff on this end.

In some embodiments of the present application, the main oil gallery is located directly below the crankshaft.

In some embodiments of the present application, the oil pump has an oil passage, one end of the main oil gallery located in the oil pump communicates with the oil passage, and an oil plug blocking the end is located on the oil passage.

In some embodiments of the present application, a cross-sectional area of the oil passage is smaller than a cross-sectional area of the main oil passage.

In some embodiments of the present application, the oil pump includes:

the oil pump body is arranged on the mould assembling box,

the cover body covers the oil pump body, and the engine oil passage is arranged on the cover body.

In some embodiments of the present application, the mould close comprises:

a box cover;

the oil pump the bent axle the main oil gallery and the oil blocks up and all locates on the box, the case lid with the box is connected through the connecting piece.

In some embodiments of the present application, the engine further comprises:

a support member mounted on the case;

the bearing part is arranged on the supporting part, the crankshaft is arranged on the bearing part, one of the connecting pieces for connecting the box cover and the box body penetrates through the supporting part, and the oil pump is close to the connecting piece penetrating through the supporting part.

In some embodiments of the present application, the engine further comprises:

the oil pump is provided with an oil suction port and an oil discharge port, and the oil suction port and the oil discharge port are respectively arranged on two sides of the connecting piece penetrating through the supporting part.

In some embodiments of the present application, the engine further comprises:

a filter communicating the oil pump and the main oil gallery;

the support member includes:

the right seat is arranged on the box body;

the middle seat, the middle seat is installed on the box:

the bearing member includes:

the first bearing is arranged on the right seat, and the right end of the crankshaft is arranged on the first bearing;

the second bearing is arranged on the middle seat, and the middle part of the bearing is arranged on the second bearing;

wherein the filter is disposed between the right seat and the middle seat.

The utility model discloses an implementation still provides a motorcycle, the motorcycle includes like above-mentioned engine.

Compared with the prior art, the utility model discloses an embodiment's beneficial effect lies in:

an embodiment of the utility model provides an engine, the engine includes: the oil pump is positioned at the position behind and below the crankshaft, covers and blocks the oil plug on the end, does not need to increase the reserved position to avoid the oil plug, can be directly arranged below a joint surface of the oil pump, shares a space with the oil pump, can effectively improve the space utilization rate of the engine, has a simple structure, and shortens the length of the engine in the front-back direction compared with a structure in which an oil passage is arranged in front of or behind the oil pump, thereby being beneficial to the light weight of the engine; meanwhile, when the oil pump is arranged in the box assembly, the oil pump is a recess with a certain depth, the main oil duct is arranged in the oil pump, and when the main oil duct is machined, the oil pump is machined on the basis of the recess of the oil pump, so that the drilling depth can be reduced, the drilling difficulty can be reduced, the drilling efficiency can be effectively improved, the drill bit loss can be reduced, and in addition, when oil is leaked due to oil blockage, oil returns to the oil pump, so that the oil pressure in the oil duct cannot be reduced; the leaked engine oil does not need to enter the oil pump from the oil suction port again, so that the mechanical loss is reduced, and the oil pumping efficiency is improved.

The embodiment of the utility model provides a motorcycle is still provided, the motorcycle adopts as above the engine, can solve the lubricated route of the flow direction bent axle of correlation technique effectively and arrange on the place ahead position of oil pump for lubricated route end position is higher than the sealed face of oil pump, and it is darker to lead to the depth of cut, has increased the technical problem of the degree of difficulty of drilling processing.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic diagram of a first structure of an engine according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a third structure of an engine according to an embodiment of the present invention;

fig. 4 is a fourth schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 5 is a fifth schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 6 is a sixth schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 7 is a seventh schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 8 is an eighth schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a ninth structure of an engine according to an embodiment of the present invention;

fig. 10 is a tenth structural schematic diagram of an engine according to an embodiment of the present invention;

fig. 11 is an eleventh schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 12 is a twelfth schematic structural diagram of an engine according to an embodiment of the present invention;

fig. 13 is a thirteenth schematic structural diagram of an engine according to an embodiment of the present invention.

Wherein:

100. an output shaft; 200. a crankshaft; 300. a counter shaft; 400. a shift shaft; 500. a balance shaft; 600. a water pump; 700. an oil pump; 701. an engine oil passage; 702. oil clogging; 101. a first gear; 102. a first sprocket; 103. a sixth gear; 201. a second gear; 202. a fourth gear; 301. a third gear; 401. a fifth gear; 501. a seventh gear; 601. closing the box surface; 701. a box body; 800. a box cover; 801. assembling the box; 802. a main oil gallery; 803. a first oil passage; 804. a second oil passage; 805. a filter; 900. a connecting member;

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, an exchangeable connection, a one-piece connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1-13, fig. 1 is a schematic structural diagram of an engine according to an embodiment of the present invention;

in the present embodiment, there is provided an engine including:

a mould assembling tank 801, wherein the mould assembling tank 801 is provided with a main oil channel 802 which penetrates from left to right;

an oil plug 702, wherein the oil plug 702 is plugged at the end of the main oil gallery 802;

the crankshaft 200 is rotatably arranged on the mould assembling box 801; and

the oil pump 700, the oil pump 700 is installed on the mold assembling 801, the oil pump 700 is located at the position of the rear lower part of the crankshaft 200, one end of the main oil gallery 802 is arranged in the oil pump 700, and the oil pump 700 covers the oil plug 702 plugged at the end.

The engine converts front-and-back motion into rotary motion under the action of a connecting rod through the crankshaft 200 to provide power for output of an auxiliary shaft of the engine, the engine oil pump 700 provides power for the engine through the crankshaft 200, the engine oil is sucked from an oil suction port at the bottom of an oil pan, pressurized and then conveyed to each part needing to be lubricated through a main oil passage 802 and oil distribution passages inside a close box 801, the oil pump 700 is located at the rear lower position of the crankshaft 200, the oil pump 700 covers an oil plug 702 plugged at the end, the reserved position is not required to be increased to avoid the oil plug 702, the oil plug 702 can be directly arranged in the oil pump 700, a space is shared with the oil pump 700, the space utilization rate of the engine can be effectively improved, the structure is simple, the length of the engine in the front-and-back direction is shortened, and the light weight of the engine is facilitated; meanwhile, when the oil pump 700 is installed in the combined box 801, the oil pump is a recess with a certain depth, the main oil gallery 802 is arranged in the oil pump 700, and when the main oil gallery 802 is machined, the oil pump 700 is machined on the basis of the recess, so that the drilling depth can be reduced, the drilling difficulty can be reduced, the drilling efficiency can be effectively improved, the loss of a drill bit can be reduced, in addition, when the oil plug 702 leaks, the oil returns to the oil pump 700, the oil cannot be lost, the pollution to the outside is avoided, and the reduction of the oil pressure in the oil gallery cannot be caused; the leaked engine oil does not need to enter the oil pump from the oil suction port again, so that the mechanical loss is reduced, and the oil pumping efficiency is improved; furthermore, the lubrication passage flowing to the crankshaft 200 in the related art is effectively arranged in the front position of the oil pump 700, so that the end surface position of the lubrication passage is higher than the sealing surface of the oil pump 700, the machining depth is deeper, and the difficulty of drilling machining is increased.

In the field of the existing motorcycles, functional improvement on the motorcycles has reached a certain bottleneck, and the motorcycles are light and flexible and have certain requirements on weight and volume space, so that the requirements for light weight and compactness of the motorcycles are derived;

in the engine provided in the present embodiment, in view of the requirement, one of the oil plugs 702 is disposed in the oil pump 700 in the present embodiment, and this arrangement does not need to consider avoiding the oil plug 702, and can be directly disposed in the oil pump 700, and the oil pump 700 shields the oil plug, so that the arrangement of an avoiding space for the oil plug 702 can be reduced, the engine is made more compact, the degree of weight reduction is higher, and the weight reduction and the compactness of the motorcycle are promoted.

In the engine of the embodiment, when the main oil gallery is not arranged in front of the oil pump, the length of the engine in the front-rear direction is not increased, the whole size and weight of the engine are not increased, and the engine is beneficial to light weight. The end face position of the main oil duct is not higher than the sealing surface of the oil pump, so that the problems of deeper processing depth and increased difficulty in drilling processing are solved; an engine oil passage on a cover body of the oil pump is smaller than a main oil duct of the combined box, so that the function of the oil pump is not influenced by avoiding oil blockage.

In some embodiments of the present application, the engine further comprises:

the main oil gallery 802 is located directly below the crankshaft 200.

The main oil gallery 802 is located under the crankshaft 200, so that the main oil gallery 802 can rapidly convey oil to a part needing lubrication through each oil separating gallery, the path of the oil separating gallery is shortened, and the crankshaft 200 can be rapidly lubricated.

In some embodiments of the present application, the oil pump 700 has an oil passage 701, one end of the main oil gallery 802 located inside the oil pump 700 communicates with the oil passage 701, and an oil plug 702 that plugs the end is located on the oil passage 701.

The oil passage 701 is a channel formed in the oil pump 700, and is capable of facilitating oil to flow in the oil pump 700 for pressurization, and after the oil flows into the next component, the oil is conveyed to each component to be lubricated through an oil passage for lubrication, one end of the main oil passage 802 is communicated with the oil passage 701, and then is blocked at the end of the main oil passage 802 on the oil passage 701 through an oil block 702, so that even if the main oil passage 802 leaks oil from the oil block 702, the oil enters the oil passage 701, and does not flow out of the engine to cause pollution.

In some embodiments of the present application, the cross-sectional area of the oil passage 701 is smaller than the cross-sectional area of the main oil gallery.

An engine oil passage 701 on the oil pump 700 is smaller than a main oil gallery 802 on a close box 801, so that the function of the oil pump 700 is not affected by avoiding oil blockage 702, and the oil pump 700 can be kept well used.

In some embodiments of the present application, the oil pump 700 includes:

the oil pump 700 body, the oil pump 700 body is arranged on the mould assembling 801,

a cover body that covers the oil pump 700 body, and the engine oil passage 701 is provided on the cover body.

The oil pump 700 body is provided with a rotating shaft and a rotor, the cover body covers the oil pump 700 body, the engine oil passage 701 is an internal groove body formed in the cover body, and the rotor is driven to rotate through the rotating shaft, so that the oil liquid flows on the engine oil passage 701 in a pressurized mode.

In some embodiments of the present application, the mould assembling 801 comprises:

a case cover 800;

the oil pump 700, the crankshaft 200, the main oil gallery 802 and the oil plug 702 are all arranged on the box body 701, and the box cover 800 is connected with the box body 701 through a connecting piece; the connecting surface of the box cover 800 and the box body 701 is a box closing surface 601, a first line segment is formed by connecting the center of the oil pump and the center of the crankshaft 200, and an included angle A formed by the first line segment and the perpendicular line of the box closing surface 601 is smaller than 30 degrees. (the angle A in this embodiment is the angle A shown in FIG. 8)

In the engine provided by the embodiment, the crankshaft 200 converts the forward and backward movement into the rotational movement under the action of the connecting rod to provide power for the output of the auxiliary shaft of the engine, the engine is provided with power by the crankshaft 200, the oil pump 700 sucks the oil from the oil suction port at the bottom of the oil pan, and the oil is pressurized and then sent to each part needing lubrication through the introduction passage formed inside the crankcase 200 to lubricate, the oil pump 700 in the embodiment is positioned behind and below the center of the crankshaft 200, and the included angle a formed by the first line segment and the perpendicular line of the joint surface 601 is smaller than 30 degrees, so that the oil can be efficiently supplied to each friction pair, the profile of the engine is not required to be additionally increased, the water pump can be installed at an ideal position, the engine is miniaturized and lightened, and the technical problem that the profile of the engine is increased and the engine is not compact due to the fact that the oil pump 700 is arranged in the front and below the crankshaft 200 in the arrangement mode of the related art is effectively solved.

The box body 701 and the box cover 800 are connected to form a box combination of the crankshaft 200 box, so that the crankshaft 200 and other components can be protected in the box combination, and meanwhile, a joint surface between the box cover 800 and the box body 701 is a box combination surface 601.

The box cover 800 and the box body 701 can be connected through a plurality of connecting pieces, so that a box combining is formed, the connecting pieces are preferably bolts, threaded holes are formed in the box cover 800, the bolts penetrate through the box body 701 and are locked on the threaded holes, and the box cover 800 and the box body 701 are locked and combined.

The oil pump is arranged in the front lower part of the crankshaft 200, so that the profile of an engine is increased, the space for arranging the water pump is occupied, and the position of the water pump is occupied; in the engine provided by the embodiment, based on the requirement, the center of the oil pump 700 in the embodiment is located behind and below the center of the crankshaft 200, and the included angle a formed by the first line segment and the perpendicular line of the box assembling surface 601 is smaller than 30 degrees, so that the length of the introduction passage is not increased, and the engine oil can be delivered to each lubricating part for lubrication when the engine is started without replacing the large-sized oil pump 700, thereby reducing the abrasion of a friction pair, simultaneously ensuring that the engine is more compact, achieving higher light weight degree, and promoting the light weight and compactness of the motorcycle; reserving the position of the front lower part of the crankshaft 200 to install a water supply pump, wherein the front part of the crankshaft 200 is used as an ideal arrangement position of an engine water pump; the distance between the cooling water jacket and the radiator is short, and the cooling water leading-in and leading-out channels are short, so that the miniaturization and the light weight of the engine are facilitated.

In some embodiments of the present application, the engine further comprises:

a support member mounted on the case 701;

a bearing part mounted on the support part, the crankshaft mounted on the bearing part, wherein one of the connectors connecting the tank cover 800 and the tank body 701 passes through the support part, and the oil pump 700 is adjacent to the connector passing through the support part.

The supporting member is mounted on the case 701 in a manner of being welded or bolted to the case 701, the supporting member has a mounting hole, an outer ring of the bearing member is inserted into the mounting hole, the crankshaft 200 is inserted into an inner ring of the bearing member, so that the crankshaft 200 can rotate relative to the supporting member, and then the case cover 800 covers the upper surface of the case 701 to realize case closing; the bearing component may be a roller bearing or a ball bearing; the oil pump 700 is arranged at a position close to the connecting piece penetrating through the supporting part, so that the limited space of the engine can be reasonably utilized, and the compactness and the light weight of the engine are effectively improved.

In some embodiments of the present application, the oil pump 700 has an oil suction port and an oil discharge port, which are respectively aligned to pass through both sides of the connection member of the support part.

The suction port is communicated with the bottom of the oil pan, and is used for pumping lubricating oil in the oil pan into the oil pump 700 when the oil pump 700 is started, pressurizing the lubricating oil in the oil pan 700, and discharging the lubricating oil from the discharge port to flow into each part needing lubrication; the suction inlet and the discharge outlet are positioned on two sides of the connecting piece penetrating through the bearing seat, so that the space of the engine can be reasonably utilized, the connecting piece is avoided, meanwhile, the suction inlet can be close to the oil pan, and the discharge outlet is close to a part needing lubrication.

In some embodiments of the present application, the engine further comprises:

the support member includes:

a right seat mounted on the case 701;

a middle seat, the middle seat is installed on the box 701:

the bearing member includes:

the first bearing is arranged on the right seat, and the right end of the crankshaft 200 is arranged on the first bearing;

the second bearing is arranged on the middle seat, and the middle part of the bearing is arranged on the second bearing;

the engine further includes:

an output shaft, the crankshaft 200 being located forward of the output shaft;

a counter shaft located above a line connecting the center of the crankshaft 200 and the center of the output shaft; the centers of the crankshaft 200, the auxiliary shaft and the output shaft are mutually connected to form a triangle, and the connecting line of the centers of the crankshaft 200 and the output shaft and the horizontal plane form a preset angle;

a shift shaft located below a line connecting the center of the crankshaft 200 and the center of the output shaft;

a balance shaft provided in front of the crankshaft 200;

the water pump is arranged in front of the balance shaft, and a connecting line of the center of the water pump and the center of the auxiliary shaft is positioned above the crankshaft 200; and

the filter 805 is communicated with the oil pump and the main oil channel and used for filtering engine oil;

wherein a centerline of the filter 805 is located between the right seat and the middle seat and is disposed below the water pump.

The supporting component at least comprises a right seat and a middle seat, and also comprises a left seat, so that the crankshaft 200 can be stably rotatably installed in the mould assembling box 801, the crankshaft 200 is driven in the process of forward and backward movement of the connecting rod, and the crankshaft 200 can stably convert the forward and backward movement power into the rotation power.

The right seat and the middle seat are both mounted on the box body 701 through bolts, the outer ring of the first bearing is mounted on the right seat, and the right end of the crankshaft 200 is inserted and mounted on the inner ring of the first bearing; the outer ring of the second bearing is installed on the middle seat, and the middle of the crankshaft 200 is inserted into the inner ring of the second bearing; the engine oil pumped by the oil pump 700 is filtered by the filter 805 and then discharged to each position needing lubrication through the discharge port, so that the lubrication effect is realized, the filter 805 is arranged between the right seat and the middle seat, the vacancy between the right seat and the middle seat can be reasonably utilized, the compactness of the engine can be effectively improved, and the space of the engine is reasonable.

In some embodiments of the present application, the engine further comprises:

and a balance shaft 500, the balance shaft 500 being provided in front of the crankshaft 200.

Since no other mechanism can be disposed at a position in front of the crankshaft 200, the arrangement position of the balance shaft 500 at the position in front of the crankshaft 200 does not affect the overall size of the engine, and the compactness of the engine can be further improved.

The crankshaft 200 is connected to the balance shaft 500 through a gear and drives the balance shaft 500, and the balance shaft 500 is used to reduce dynamic mechanical vibration.

In some embodiments of the present application, the engine further comprises:

and a water pump 600, wherein the water pump 600 is disposed in front of the balance shaft 500, and a connection line between the center of the water pump 600 and the center of the auxiliary shaft 300 is located above the crankshaft 200.

The water pump 600 is used for driving cooling liquid to cool the engine; the water pump 600 is arranged in front of the balance shaft 500, so that the total designed length of a pipeline of cooling liquid is reduced, the engine can be directly cooled, the material of the pipeline is saved, the pipeline is reduced, the compactness is realized, and the water cooling performance and the emission of the engine are improved.

In some embodiments of the present application, the engine further comprises:

a filter 805, wherein the filter 805 is connected with the oil pump 700 and is used for filtering the engine oil;

wherein the filter 805 is located between the right seat and the middle seat and is arranged below the water pump.

The engine oil pumped by the oil pump 700 is filtered by the filter 805 and then discharged to each position needing lubrication through the discharge port, so that the lubrication effect is realized, the filter 805 is arranged between the right seat and the middle seat and arranged below the water pump, the vacancy between the right seat and the middle seat can be reasonably utilized, and the compactness of the engine and the reasonable space of the engine can be effectively improved.

The center of the oil pump 700 is located at the rear lower side of the crankshaft 200.

The oil pump 700 is closest to the filter 805 and the oil supply points (the crankshaft 200 and the balance shaft 500), and the required conveying pipelines are short, so that the engine can be increased in compactness, and the lubricating effect of the crankshaft 200 and the balance shaft 500 in the engine can be better.

The oil pump 700 is disposed behind and below the crankshaft 200, and since the counter shaft 300 is disposed above a line connecting the center of the crankshaft 200 and the center of the output shaft 100, the oil pump 700 does not obstruct the arrangement of the primary gears on the counter shaft 300, so that the width of the engine is not increased, and the engine is further compact.

The crankshaft 200 drives the umbrella blade of the oil pump 700, so that the crankshaft 200 can drive the pair of oil pumps 700 to work.

In some embodiments of the present application, the engine comprises:

a first gear 101, the first gear 101 being mounted on the crankshaft 200;

a second gear 201, wherein the second gear 201 is engaged with the first gear 101, and the second gear 201 is mounted on the balance shaft 500;

a third gear 301, the third gear 301 being intermeshed with the first gear 101, and the third gear 301 being mounted on the countershaft 300;

wherein the crankshaft 200 drives the balance shaft 500 through the first gear 101 and the second gear 201, and the crankshaft 200 drives the countershaft 300 through the first gear 101 and the third gear 301.

The power of the crankshaft 200 drives the countershaft 300 through the first gear 101 and the third gear 301, and the countershaft 300 transmits the power to the engine output shaft 100 to drive the vehicle; the transmission system of the embodiment cancels a special gear on the crankshaft 200 for transmitting power with the balance shaft 500, and transmits power to the balance shaft 500 through the second gear 201 and the auxiliary shaft 300 through the third gear 301 through the first gear 101, so that the engine can be more compact in width and can retract inwards from the left side of the engine, the occupied space of the engine in width is reduced, and the compactness and the light weight of the engine are improved.

The first gear 101 is attached to the crankshaft 200 by welding, spline coupling, or the like, the second gear 201 is attached to the balance shaft 500 by welding, spline coupling, or the like, and the third gear 301 is attached to the counter shaft 300 by welding, spline coupling, or the like.

The crank-connecting rod mechanism is characterized in that reciprocating motion of a piston is converted into rotary motion, rotary power is output through a crankshaft 200, a first layer of transmission pair is formed by coplanar surfaces of a first gear 101, a second gear 201 and a third gear 301 and is located on the right side of the engine, namely, on the right side of the crankshaft 200, a countershaft 300 and a balance shaft 500, wherein a clutch is arranged in the middle of the countershaft 300 and on the left side of the countershaft, the first gear 101, the second gear 201 and the third gear 301 are transmitted and arranged on the right side of the clutch, and no additional space for avoiding the clutch is required to be configured due to the need of assembling the gear pair, so that the height of the clutch is effectively controlled to be minimized, and the compactness and the light weight of the engine are further improved.

The first chain wheel 102 is welded or mounted on the crankshaft 200 in a spline connection manner; the first chain wheel 102 is driven to rotate by the crankshaft 200, the second chain wheel is mounted on a camshaft through welding or spline connection and the like, the first chain wheel 102 and the second chain wheel are driven by a chain, wherein the first chain wheel 102 is arranged at the position of the first gear 101, a chain cavity is slightly outside, the man-machine is not influenced, the position above the right side of the auxiliary shaft 300 can be utilized for arrangement, and the compactness of the engine can be effectively improved.

The fourth gear 202 is mounted on the balance shaft 500 by welding or spline connection, and rotates with the balance shaft 500; the fifth gear 401 is mounted on the rotating shaft of the water pump 600 through welding or spline connection and the like, and is used for driving the impeller of the water pump 600 to rotate, the fourth gear 202 is located on the right side of the second gear 201, the balance shaft 500 is placed in the front of the engine, and the fifth gear 401 is driven by the fourth gear 202 arranged on the right upper end of the balance shaft 500 to drive the water pump 600 to work.

The first sprocket 102, the fourth gear 202, and the fifth gear 401 are all located within a preset range, that is, the first sprocket 102, the fourth gear 202, and the fifth gear 401 do not interfere with each other in height, and may be set within the preset range such that the first sprocket 102, the fourth gear 202, and the fifth gear 401 form a second layer, which is adjacent to the first layer.

The sixth gear 103 is mounted on the crankshaft 200 in a manner of welding or spline connection, and rotates with the crankshaft 200, and the seventh gear 501 is mounted on a rotating shaft of the oil pump in a manner of welding or spline connection, and is used for driving the rotating shaft of the oil pump to drive the oil pump to rotate, so as to drive the oil pump to work, wherein the seventh gear 501 is mounted on the outermost side of the crankshaft 200 and is positioned in a skirt portion of the oil pump, so as not to increase the height of the engine, and the positions of the oil pump and the sixth gear 103 and the seventh gear 501 for driving the oil pump can be configured more reasonably, wherein the oil pump 700 and the water pump 600 do not need to be arranged behind the crankshaft 200, so that the distance from the crankshaft 200 to the countershaft 300 is shortened, and the front-back direction of the engine is compact; wherein the sixth gear 103 and the seventh gear 501 form a third layer.

The first gear 101, the first chain wheel 102 and the sixth gear 103 are arranged from left to right and are located near one end of the right side of the crankshaft 200, and on the premise of layered arrangement of the first layer, the second layer and the third layer, the internal part of the engine is reasonably arranged, all the gears are within the height profile of the clutch, and adjustment on the height of the engine is not needed.

The third gear 301 and the fifth gear 401 are both located above a connecting line of the center of the crankshaft 200 and the center of the balance shaft 500, and a connecting line of the center of the third gear 301, the center of the fifth gear 401 and the center of the seventh gear 501 is in an inverted triangle.

Through the arrangement mode, the lower part of the right side of the engine can be further ensured to have a recombination space, the space for arranging a brake and a pedal is facilitated, and the operation of an operator is facilitated.

The transmission system of the embodiment can realize the compactness of the left and right directions and the front and back directions of the engine; the adaptability to various types of finished vehicles is good; the engine is symmetrical left and right, and the arrangement of the whole vehicle is convenient; the engine is light, and the engine is favorable for the operability, the dynamic property, the economy and the emission performance of the vehicle; and the engine adopts common technology or structure, and the cost is low.

In some embodiments of the present application, the engine further comprises:

the main oil passage comprises a first oil passage 803 and a second oil passage 804 which are communicated, the first oil passage 803 penetrates through the left side and the right side of the combined box, one end of the second oil passage 804 is connected with the filter 805, the other end of the second oil passage is connected with the first oil passage 803, the pressure regulating valve is arranged at the intersection of the first oil passage 803 and the second oil passage 804, and a groove is arranged on the inner wall of the intersection of the first oil passage 803 and the second oil passage 804.

At the intersection of the first oil duct 803 and the second oil duct 804, a taper angle left by drilling is added to form the groove, so that the first oil duct 803 and the second oil duct 804 are communicated more smoothly, the generation of turbulence of engine oil is reduced, the temperature of oil pressure and flow speed in the main oil duct is ensured, and the mechanical loss is reduced;

on one hand, the pressure regulating valve is arranged at the intersection of the first oil passage 803 and the second oil passage 804, and has the functions of pressure stabilization and oil blockage, and the design structure of the engine is simpler and the cost is lower. On the other hand, the pressure regulating valve is far away from the filter 805, so that the oil path of the pressure stabilizing section is longer, the oil pressure before the oil enters the oil filter is more stable, and the damage of oil pressure fluctuation to a paper filter screen of the oil filter is reduced

The utility model also provides a motorcycle, which comprises the engine;

the motorcycle adopts the engine, and the technical problems that in the prior art, a lubricating passage flowing to a crankshaft is arranged in the front of the engine oil pump 700, so that the end face of the lubricating passage is higher than the sealing surface of the engine oil pump 700, the machining depth is deep, and the difficulty of drilling machining is increased can be effectively solved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. An engine, characterized in that the engine comprises:

the mould assembling box is provided with a main oil duct which penetrates through the mould assembling box from left to right;

the oil plug is plugged at the end part of the main oil gallery;

the crankshaft is rotatably arranged on the mould assembling box; and

the oil pump, the oil pump install in on the mould assembling, just the oil pump is located on the position of the rear below of bent axle, the one end of main oil gallery is located in the oil pump, just the oil pump covers the oil blockage of shutoff on this end.

2. The engine of claim 1, characterized in that the main oil gallery is located rearwardly and downwardly of the crankshaft;

the oil pump is provided with an engine oil passage, one end of the main oil duct, which is positioned in the oil pump, is communicated with the engine oil passage, and an oil plug for plugging the end is positioned on the engine oil passage.

3. The engine according to claim 2, characterized in that the cross-sectional area of the oil passage is smaller than the cross-sectional area of the main oil gallery;

the oil pump includes:

the oil pump body is arranged on the mould assembling box,

the cover body covers the oil pump body, and the engine oil passage is arranged on the cover body.

4. The engine of claim 3, characterized in that the mold close comprises:

a box cover;

the oil pump, the crankshaft, the main oil gallery and the oil plug are all arranged on the box body, and the box cover is connected with the box body through a connecting piece;

the box cover and the box connecting surface are box closing surfaces, a first line segment is formed by connecting the center of the oil pump and the center of the crankshaft, and an included angle A formed by the first line segment and a perpendicular line of the box closing surfaces is smaller than 30 degrees.

5. The engine of claim 4, further comprising:

a support member mounted on the case;

the bearing part is arranged on the supporting part, the crankshaft is arranged on the bearing part, one of the connecting pieces for connecting the box cover and the box body penetrates through the supporting part, and the oil pump is close to the connecting piece penetrating through the supporting part.

6. The engine of claim 5,

the oil pump is provided with an oil suction port and an oil discharge port, and the oil suction port and the oil discharge port are respectively arranged on two sides of the connecting piece penetrating through the supporting part.

7. The engine of claim 5, wherein the support member comprises:

the right seat is arranged on the box body;

the middle seat, the middle seat is installed on the box:

the bearing member includes:

the first bearing is arranged on the right seat, and the right end of the crankshaft is arranged on the first bearing;

the second bearing is arranged on the middle seat, and the middle part of the bearing is arranged on the second bearing;

the engine further includes:

an output shaft, the crankshaft being located forward of the output shaft;

a countershaft located above a line connecting a center of the crankshaft and a center of the output shaft; the center of the crankshaft, the center of the auxiliary shaft and the center of the output shaft are mutually connected to form a triangle, and the connecting line of the center of the crankshaft and the center of the output shaft and the horizontal plane form a preset angle;

the gear shifting shaft is positioned below a connecting line of the center of the crankshaft and the center of the output shaft;

the balance shaft is arranged in front of the crankshaft;

the water pump is arranged in front of the balance shaft, and a connecting line of the center of the water pump and the center of the auxiliary shaft is positioned above the crankshaft; and

the filter is communicated with the oil pump and the main oil gallery and is used for filtering engine oil;

wherein a center line of the filter is located between the right seat and the middle seat, and is arranged below the water pump.

8. The engine of claim 7, further comprising:

the first gear is arranged on the crankshaft;

the second gear is meshed with the first gear, and the second gear is arranged on the balance shaft;

a third gear intermeshed with the first gear and mounted on the countershaft;

the crankshaft drives the balance shaft through the first gear and the second gear, and the crankshaft drives the counter shaft through the first gear and the third gear;

the first chain wheel is arranged on the crankshaft;

the second chain wheel is connected with the first chain wheel through a chain and is used for being arranged on the camshaft;

the fourth gear is arranged on the balance shaft and is positioned on the right side of the second gear;

the fifth gear is meshed with the fourth gear, is arranged on the water pump and is used for driving the water pump to work by the balance shaft through the fourth gear; the balance shaft is placed at the front part of the engine;

a sixth gear mounted on the crankshaft;

a seventh gear engaged with the sixth gear and mounted on the oil pump; and

wherein the crankshaft drives the oil pump through the sixth gear and the seventh gear; the first chain wheel is positioned between the first gear and the sixth gear, and the first chain wheel, the sixth gear and the third gear are positioned on the right side of the crankshaft;

the third gear and the fifth gear are both positioned above a connecting line of the center of the crankshaft and the center of the balance shaft, and the connecting line of the center of the third gear, the center of the fifth gear and the center of the seventh gear is in an inverted triangle shape.

9. The engine of claim 7, further comprising:

the main oil duct comprises a first oil duct and a second oil duct which are communicated, the first oil duct penetrates through the left side and the right side of the combined box, one end of the second oil duct is connected with the filter, the other end of the second oil duct is connected with the first oil duct, the pressure regulating valve is arranged at the intersection of the first oil duct and the second oil duct, and a groove is formed in the inner wall of the intersection of the first oil duct and the second oil duct.

10. A motorcycle, characterized in that the motorcycle comprises:

an engine as claimed in any one of claims 1 to 9.

Images