CN105298679B - A kind of composite engine - Google Patents

Abstract

The invention discloses a kind of composite engine, belong to engine manufacturing technology field.Casing in the present invention includes outside plate and Curved shaft support seat board, and four pieces of outside plates are fixedly connected sequentially as the body structure of cuboid, and Curved shaft support seat board is installed in body structure, and Curved shaft support seat board is perpendicular with four pieces of outside plates respectively；Bent axle power output mechanism includes bent axle, some crankshaft gears on bent axle, output shaft and the output shaft transmission gear being installed on output shaft, and each crankshaft gear output shaft transmission gear corresponding with one is meshed；Cooling system includes circulating pump, radiator and copper pipe, and copper pipe is wound on the cylinder head of cylinder successively, and circulating pump and radiator tandem are on the pipeline of copper pipe.The composite engine of the present invention, the increase of cylinder cylinder number can be realized easily, solve the manufacture problem of multi-cylinder two stroke engine, and engine speed can reach 10000r/min or so, and power is big, lightweight, has filled up domestic and international blank.

Description

A kind of composite engine

Technical field

The present invention relates to a kind of engine, more specifically to a kind of composite engine.

Background technology

Engine is otherwise known as engine, is that a kind of can be converted into the machine of another more useful energy a form of Device, is widely used in locomotive, ship and aircraft etc..General engine is main by casing, bent axle, toggle, gazogene Structure, fuel feed system, lubricating system, cooling system and ignition system etc. are constituted.

Engine housing is the skeleton for constituting engine, is the installation foundation of each mechanism of engine and system, its is inside and outside All major parts and annex of engine are installed, various load are born, therefore it is necessary to have enough strong for engine housing Degree and rigidity.At present, engine housing almost all uses cast iron or aluminium alloy casting bar none, according to engine case The structure type of body is different, can be divided into monoblock type casing and separating box, and the former is monoblock cast, overall processing, processing compared with Difficulty, but assembly precision is higher；The latter can process respectively, be easy to process and assemble, but add the workload of assembling.Using casting The engine housing of type is caused, the weight of engine constrains engine and require lightweight, high-power at some all than larger Application in occasion.Further, once current engine housing machine-shaping, the cylinder number of its engine is determined that, it is impossible to real Existing cylinder number increase and decrease, also can not just realize that engine power changes, it is necessary to increase or during less cylinder number, it is necessary to redesign, open Mould and casting processing engine housing, design iterations processing charges are very high.

Bent axle is most important part in engine, and it bears the power that connecting rod is transmitted, and bent axle is centrifuged by gyrating mass Power, the gas inertia power of mechanical periodicity and the collective effect of reciprocal inertia force, make bent axle bear the effect of flexion torsion load.It is many Piston in each cylinder of Cylinder engine is moved back and forth in cylinder body, and each piston work done is transmitted by toggle Exported onto same bent axle, then by reducing gear, multiple cylinder work done are delivered to the output end of bent axle one by one, in song The output end of axle can produce position deformation, cause Crank shaft Damage, this also turn into restriction engine power and rotating speed lifting it is important Factor.In addition, in engine structure, the distribution form of bent axle and the arrangement of cylinder for engine performance there is also Material impact, directly affects rotating speed, operational shock and the noise of engine.

The groundwork of engine-cooling system is that the heat for producing engine is dispersed into air.Engine cool system System can be divided into two major classes, and a class is water-cooling system, and another kind of is air cooling system.Air cooling system is early stage cooling technology, and it is logical Cross that the aluminium flake of engine cylinder-body surface attachment radiated to cylinder, it is necessary to which the fan of a powerful blows to these aluminium flakes Wind, makes aluminium flake be radiated into air, so as to reach the purpose of cooling engine.Water-cooling system be by the pipeline in engine and Path carries out the circulation of liquid, and heat can be absorbed when liquid is through high-temperature engine, so that the temperature of engine is reduced, water cooling system System is the main flow cooling system of current engine.Cooling jacket, water pump are all cast with the cylinder head and cylinder block of water-cooled engine Coolant is suctioned out from radiator and block jacket is pressed and delivered to, coolant absorbs the thermal temperature rise of cylinder block, Then flow to after cylinder head jacket, cooling cylinder cap from the thermostat at the top of cylinder head flows to radiator, due to electric fan Strong pumping, air from the front to the back at a high speed by radiator, thus it is heated after coolant during radiator is flowed through, heat Amount is constantly dispersed into air, is cooled down coolant, cooled coolant is flowed to after the lower header of radiator, in water It is flow back into again in engine again in the presence of pump, thus constantly circulation, is continuously available the parts worked under the high temperature conditions Cooling.Existing water-cooled engine needs to cast cooling jacket, and manufacturing process is relatively complicated, and cost is higher；Also, cooling water Set adds the volume and weight of engine, it is impossible to realize the manufacture of lightweight, high-power engine, it is therefore desirable to existing Engine-cooling system is improved.

The content of the invention

1. the invention technical problem to be solved

It is an object of the invention to overcome a kind of the above-mentioned not enough there is provided composite engine of available engine, using this The technical scheme of invention, engine housing is formed using sheet material assembling combination, and the casting without high cost molds processing, casing knot Structure is simple firmly, convenient processing and manufacture, interior-exterior parts install easy；Bent axle is non-heavily loaded bent axle, it is to avoid bent axle plays position deformation, And bent axle is in star-like distribution, more number of cylinders can be arranged, cylinder is distributed using opposed type on bent axle, greatly reduces and start The vibration of machine at work, reduces operation noise, the rotating speed and power of engine is greatly improved, rotating speed can reach 10000r/min or so, bent axle alleviates the weight of engine without balance weight；Cooling system is used and is wrapped on cylinder cylinder head Copper pipe carry out engine cool, coolant cycle heat exchange in copper pipe is made by circulating pump, and dissipate heat by radiator It is dealt into air, simplifies the manufacturing process of engine-cooling system, the cooling of engine is fast, and good cooling results extend hair The service life of motivation, solves the radiating problem of 10000r/min or so rev-happy engine；Using the technology of the present invention Scheme, also reduces the volume and weight of engine, reduces the manufacturing cost and manufacture difficulty of engine, gas can be realized easily The increase of cylinder quantity, solves the manufacture problem of multi-cylinder two stroke engine, has filled up domestic and international blank.

2. technical scheme

To reach above-mentioned purpose, the technical scheme that the present invention is provided is：

A kind of composite engine of the present invention, including casing, bent axle power output mechanism, cylinder, connecting rod and cooling system System, wherein：

Described casing includes four pieces of outside plates and at least two pieces Curved shaft support seat boards, and four pieces of outside plates are fixedly connected sequentially as length The body structure of cube shape, Curved shaft support seat board is installed in the body structure, and Curved shaft support seat board respectively with four pieces of outside plates Perpendicular, described Curved shaft support seat board is provided with the oil sealing hole and bearing hole for being used for installing bent axle；Also set on described casing There is scavenging air valve installing port for installing the cylinder mounting holes of cylinder, for installing scavenging air valve and defeated for the gear of power output Portal；

Described bent axle power output mechanism includes bent axle, some transmission of crankshaft teeth according to certain rules on bent axle Wheel, output shaft and the output shaft transmission gear being installed on output shaft, described bent axle are pacified by above-mentioned Curved shaft support seat board Connected loaded on box house, and by connecting rod with corresponding cylinder, described output shaft is installed on outside casing, and it is each described Crankshaft gear it is corresponding with one output shaft transmission gear be meshed；

Described cooling system includes circulating pump, radiator and copper pipe, and described copper pipe is wound in the cylinder head of cylinder successively On, described circulating pump and radiator tandem form coolant circulation loop on the pipeline of copper pipe.

Further, described bent axle includes two or more bent axle units, and each bent axle unit includes Two connecting rod necks in 180 ° of settings, and two connecting rod necks connect two gas being oppositely arranged in 180 ° by connecting rod respectively One crankshaft gear is set between cylinder, two adjacent bent axle units.

Further, the opposed two relative outside plates for being distributed in casing of all cylinders connected on described bent axle On.

Further, two bent axle units adjacent on described bent axle have clockwise or counterclockwise successively One equal rotation angle α, and the product of the rotation angle α and the quantity of bent axle unit is 360 °.

Further, the two ends of each described bent axle unit are correspondingly provided with a Curved shaft support seat board, described Curved shaft support seat board separates each bent axle unit in independent work chamber.

Further, each described bent axle unit is independent crankshaft section, the company of adjacent two bent axle units Connect end by a crankshaft gear mutually to splice, and connected between bent axle unit and crankshaft gear using spline interference.

Further, the gearratio of described crankshaft gear and output shaft transmission gear is 1:1 or 1.5:1 or 2: 1。

Further, it is connected between described outside plate by fastening screw.

Further, described Curved shaft support seat board includes the first seat board and the second seat board, described the first seat board and Second seat board is screwed connection, and the joint face of the first seat board and the second seat board is in one of oil sealing hole and bearing hole Diametrically.

Further, anti-raise one's hat is additionally provided with the cylinder head of described cylinder.

3. beneficial effect

The technical scheme provided using the present invention, compared with existing known technology, with following remarkable result：

(1) a kind of composite engine of the invention, its casing is by the way of sheet material assembling combination, without high cost Casting molds processing, and outside plate thickness of slab is uniform, and is connected using screw, simple in construction firm, and outside plate materials are easy, processing and manufacturing side Just, interior-exterior parts are installed easy；Its bent axle power output mechanism is exported the load on bent axle using output shaft one by one, makes bent axle For non-heavily loaded bent axle, it is to avoid bent axle plays position deformation；Its cooling system is wrapped on cylinder cylinder head using copper pipe, passes through circulating pump Make coolant cycle heat exchange in copper pipe, and distributed heat to by radiator in air, simplify engine-cooling system Manufacturing process engine cooling it is fast, good cooling results extend the service life of engine, solve 10000r/min left The radiating problem of right rev-happy engine；Meanwhile, the volume and weight of engine is also reduced, the manufacture of engine is reduced Cost and manufacture difficulty, the increase of number of cylinders can be realized easily, solved the manufacture problem of multi-cylinder two stroke engine, filled up Domestic and international blank；

(2) a kind of composite engine of the invention, its bent axle includes two or more bent axle units, Mei Gequ Axle unit includes two connecting rod necks in 180 ° of settings, and two connecting rod necks connect two in 180 ° of phases by connecting rod respectively To the cylinder of setting, a crankshaft gear is set, and cylinder is on bent axle using opposed between two adjacent bent axle units Formula is distributed, and the torque that the cylinder piston of bent axle both sides is produced is cancelled out each other, and is greatly reduced the vibration of engine at work, is subtracted Noise is run less, compared to other kinds of in-line engine, without balance weight on bent axle, obtains the rotating speed and power of engine To very big lifting, rotating speed can reach 10000r/min or so, and can ensure engine smooth working, and alleviate the weight of engine Amount, compared with other types engine, reduces engine consumption；

(3) on a kind of composite engine of the invention, its bent axle two adjacent bent axle units successively along clockwise or Counterclockwise there is an equal rotation angle α, and the rotation angle α and the product of the quantity of bent axle unit are 360 °, i.e., from song The axial direction of axle sees, bent axle is in star-like distribution, can arrange more number of cylinders, solve multi-cylinder (4 cylinders, 6 cylinders, 8 cylinders, 10 cylinders, 12 cylinders etc.) two stroke engine manufacture problem, and the bent axle of star-like distribution adds bent axle running stability；

(4) a kind of composite engine of the invention, the two ends of each of which bent axle unit are correspondingly provided with a bent axle branch Seat board is supportted, Curved shaft support seat board separates each bent axle unit in independent work chamber, and Curved shaft support seat board not only can use In the support of bent axle, the effect of canned motor casing is also acted as, each bent axle unit is in respective working chamber office work, phase Mutually influence small；Crank rotation is more stablized along the axially arranged multiple Curved shaft support seat boards of bent axle, reduce bent axle and rock, carry High engine operational stability；

(5) a kind of composite engine of the invention, each of which bent axle unit is independent crankshaft section, is easy to bent axle to add Work, and facilitate the installation of crankshaft gear and bearing；The connection end of two adjacent bent axle units is passed by a bent axle Moving gear mutually splices, and is connected between bent axle unit and crankshaft gear using spline interference, easy to connect, is easy between bent axle Angular adjustment, realize easily number of cylinders increase；

(6) a kind of composite engine of the invention, the gearratio of its crankshaft gear and output shaft transmission gear is 1:1 or 1.5:1 or 2:1, output shaft can not only export the synchronization of bent axle, and can realize that primary subtracts as needed Speed, using flexible；

(7) a kind of composite engine of the invention, its Curved shaft support seat board includes the first seat board and the second seat board, first Seat board and the second seat board are screwed connection, and the joint face of the first seat board and the second seat board is in oil sealing hole and bearing hole One diametrically, convenient processing and manufacture is easy to crankshaft installed；

(8) it is additionally provided with a kind of composite engine of the invention, the cylinder head of its cylinder and prevents raising one's hat, can effectively prevents winding Come off in the copper pipe on cylinder cylinder head, it is ensured that engine is normally run；Also, the cross section for the copper pipe being wrapped on cylinder cylinder head Rectangle is shaped as, the contact area of copper pipe and cylinder head is added, the thermal conduction effect of copper pipe is good, improves the cooling of cooling system Efficiency；Coolant is few, significantly alleviates the weight and volume of engine.

Brief description of the drawings

Fig. 1 is a kind of structural representation of composite engine of the present invention；

Fig. 2 is the structural representation of the combined box connected into the present invention by outside plate；

Fig. 3 is the structural representation of casing in the present invention；

Fig. 4 is the structural representation of Curved shaft support seat board in the present invention；

Fig. 5 for the present invention in bent axle power output mechanism structural representation；

Fig. 6 for the bent axle power output mechanism in the present invention structural representation (omit Curved shaft support seat board)；

Fig. 7 is the structural representation that multiple bent axle unit spliceds in the present invention are integral shaft；

Fig. 8 for the present invention in a bent axle unit structural representation；

Fig. 9 is the star-like distribution schematic diagram of bent axle in the present invention.

Label declaration in schematic diagram：

1st, casing；11st, outside plate；12nd, fastening screw；13rd, cylinder mounting holes；14th, scavenging air valve installing port；15th, gear is exported Hole；16th, Curved shaft support seat board；161st, the first seat board；162nd, the second seat board；163rd, screw hole；164th, oil sealing hole；165th, bearing Hole；2nd, bent axle power output mechanism；21st, bent axle unit；211st, trunnion；212nd, connecting rod neck；213rd, spline；22nd, transmission of crankshaft Gear；23rd, output shaft；24th, shaft transmission gear is exported；3rd, cooling system；31st, circulating pump；32nd, copper pipe；33rd, radiator；4th, gas Cylinder；41st, prevent raising one's hat；42nd, piston；5th, connecting rod.

Embodiment

To further appreciate that present disclosure, with reference to accompanying drawing, the present invention is described in detail.

With reference to shown in 1, a kind of composite engine of the invention, including casing 1, bent axle power output mechanism 2, cylinder 4, Connecting rod 5 and cooling system 3, wherein：

Casing 1 in the present invention is combined box, and referring to shown in Fig. 2 and Fig. 3, casing 1 is including four pieces of outside plates 11 and extremely Few two pieces of Curved shaft support seat boards 16, four pieces of outside plates 11 are fixedly connected sequentially as the body structure of cuboid, the body structure two End opening, Curved shaft support seat board 16 is installed in the body structure, and Curved shaft support seat board 16 mutually hangs down with four pieces of outside plates 11 respectively Directly, Curved shaft support seat board 16 is provided with the oil sealing hole 164 and bearing hole 165 for being used for installing bent axle, and Curved shaft support seat board 16 is used for Bent axle is supported, while also acting as the effect of canned motor casing；The cylinder for installing cylinder 4 is additionally provided with casing 1 to install Hole 13, the scavenging air valve installing port 14 for installing scavenging air valve and the gear delivery outlet 15 for power output, cylinder mounting holes 13 It is arranged in successively on two pieces of relative outside plates 11, makes the opposed distribution of cylinder 4, scavenging air valve installing port 14 and gear delivery outlet 15 is distinguished On two other relative outside plate 11, specifically, length direction of the Curved shaft support seat board 16 along casing 1 by casing be divided into Two cylinder mounting holes 13 of opposed distribution, each work chamber are correspondingly arranged in a few work chamber, each work chamber It is correspondingly arranged between a scavenging air valve installing port 14, two adjacent work chamber and a gear delivery outlet 15 can be set.In order to Install and convenient disassembly, be connected between four pieces of outside plates 11 in the present invention by fastening screw 12, Curved shaft support seat board 16 Also by screw connection between outside plate 11, cylinder 4 and scavenging air valve are installed on outside plate 11 by screw.Using the casing knot Structure, casting die sinking processing of the engine housing without high cost, the thickness of slab of outside plate 11 is uniform, thickness can as needed depending on, and adopt It is connected with screw, simple in construction firm, outside plate 11 is drawn materials easily, convenient processing and manufacture；Using combined box structure, inside and outside zero Part installs easy, and box weight is light, and the manufacturing cost of engine housing can be greatly reduced, and effectively reduces the oil consumption of engine. In addition, Curved shaft support seat board 16 includes setting on the first seat board 161 and the second seat board 162, the first seat board 161 and the second seat board 162 There is the screw hole 163 that position is corresponding, the first seat board 161 and the second seat board 162 are screwed connection, and the first seat board 161 and second the joint face of seat board 162 be in one of oil sealing hole 164 and bearing hole 165 diametrically, i.e. oil sealing hole 164 and axle The half of bearing bore 165 is located on the first seat board 161, and second half is located on the second seat board 162, during installation, by the He of the first seat board 161 Then first seat board 161 and the second seat board 162 are fixed together by the second seat board 162 respectively to being buckled on bent axle using screw.

As shown in Figures 5 to 9, the bent axle power output mechanism 2 in the present invention includes bent axle, is located at bent axle according to certain rules On some crankshaft gears 22, output shaft 23 and the output shaft transmission gear 24 being installed on output shaft 23, bent axle passes through Above-mentioned Curved shaft support seat board 16 is installed on inside casing 1, and is connected by connecting rod 5 with corresponding cylinder 4, and output shaft 23 is installed Outside casing 1, and each crankshaft gear 22 output shaft transmission gear 24 corresponding with one is meshed, and utilizes output Axle 23 exports the load on bent axle one by one, bent axle is turned into non-heavily loaded bent axle, it is to avoid bent axle plays position deformation.In the present invention Bent axle includes two or more bent axle units 21, and each bent axle unit 21 includes two connecting rod necks in 180 ° of settings 212 (as shown in Figure 8), and two connecting rod necks 212 connect two cylinders 4 being oppositely arranged in 180 ° by connecting rod 5 respectively, it is bent On the relative outside plate 11 of opposed be distributed in casing 1 two of all cylinders 4 connected on axle, i.e. the opposed distribution of cylinder 4, bent axle The torque that the piston 42 of both sides cylinder 4 is produced is cancelled out each other, and is greatly reduced the vibration of engine at work, is reduced operation Noise, compared to other kinds of in-line engine, without balance weight on bent axle, makes the rotating speed and power of engine obtain very big Lifting, rotating speed can reach 10000r/min or so, and can ensure engine smooth working, and alleviate the weight of engine.It is bent Setting rule of the shaft transmission gear 22 on bent axle can be：One transmission of crankshaft tooth is set between two adjacent bent axle units 21 Wheel 22.Two adjacent bent axle units 21 have an equal rotation angle α clockwise or counterclockwise successively on bent axle, And the rotation angle α and the product of the quantity of bent axle unit 21 are 360 °, i.e., in terms of the axial direction of bent axle, bent axle is in star-like distribution, More number of cylinders can be arranged, solve multi-cylinder (4 cylinders, 6 cylinders, 8 cylinders ..., 20 cylinders, 30 cylinders etc.) two stroke engine Problem is manufactured, domestic and international blank has been filled up.The two ends of each bent axle unit 21 are correspondingly provided with a Curved shaft support seat board 16, bent Axle support seat board 16 separates each bent axle unit 21 in independent work chamber, makes song using multiple Curved shaft support seat boards 16 Axle, which is rotated, more to be stablized, and is reduced bent axle and is rocked, improves engine operational stability.In addition, in the present invention, bent axle is used Split splicing construction, each bent axle unit 21 is independent crankshaft section (as shown in Figure 8), adjacent two bent axle units 21 Connection end is mutually spliced by a crankshaft gear 22, and spline mistake is used between bent axle unit 21 and crankshaft gear 22 It is full of connection, specifically, the crankshaft section is made up of trunnion 211 and two connecting rod necks 212 in 180 ° of settings, the two of crankshaft section End is respectively arranged with spline 213, provided with the splined hole being engaged with above-mentioned spline 213 on crankshaft gear 22, during installation, Only need the transmission of crankshaft tooth end spline 213 of two adjacent bent axle units 21 being fitted between two bent axle units 21 In the splined hole of wheel 22, so after setting, not only facilitate between adjacent bent axle unit 21 and bent axle unit 21 and bent axle Connection between travelling gear 22, and the angular adjustment between adjacent bent axle unit 21 is facilitated, cylinder can be realized easily Quantity increase.

Return shown in Fig. 1, cooling system 3 includes circulating pump 31, radiator 33 and copper pipe 32, copper pipe 32 is wound in gas successively On the cylinder head of cylinder 4, circulating pump 31 and radiator 33 are connected on the pipeline of copper pipe 32, form coolant circulation loop, copper pipe 32 The coolant of interior circulation is water or anti-icing fluid.When engine works, circulating pump 31 forces the coolant in radiator 33 in copper Circulated in pipe 32, the heat on the cylinder head of cylinder 4 is exchanged heat with the copper pipe 32 being wrapped on cylinder head, coolant absorbs copper pipe 32 Temperature is heated up, and in the coolant inflow radiator 33 after heating, the heat on radiator 33 is dispersed into sky using radiator fan In gas, coolant temperature reduction is set to cool down, the coolant got off that is cooled by radiator 33 continues in circulating pump 31 In the copper pipe 32 that winding is flowed under effect, constantly circulation so that engine temperature is continuously available cooling, and reaches constant temperature shape State.In the present invention, it is wrapped in using copper pipe 32 on cylinder head, coolant cycle heat exchange in copper pipe 32 is made by circulating pump 31, and Distributed heat to by radiator 33 in air, without casting cooling jacket on engine housing, not only simplify and start The manufacturing process of machine cooling system, reduces the volume and weight of engine, and the cooling of engine is fast, good cooling results, The service life of engine is extended, the radiating problem of 10000r/min or so rev-happy engine is solved.In addition, in order to Prevent from being wound in the copper pipe 32 on cylinder head to come off when engine works, anticreep is additionally provided with the cylinder head of the cylinder 4 in the present invention Cap 41, this is anti-, which to raise one's hat, 41 effectively can be limited in copper pipe 32 on cylinder 4, it is ensured that engine is normally run.

With reference to embodiment, the invention will be further described.

Embodiment

The present embodiment is by taking the Cylinder engine of opposed type 10 as an example, as shown in figure 1, a kind of composite engine of the present embodiment, Including casing 1, bent axle power output mechanism 2, cylinder 4, connecting rod 5 and cooling system 3, wherein：

As shown in Figures 2 to 4, casing 1 includes four pieces of outside plates 11 and at least two pieces Curved shaft support seat boards 16, four pieces of outside plates 11 It is fixedly connected sequentially as the body structure of cuboid, Curved shaft support seat board 16 is installed in the body structure, and Curved shaft support Seat board 16 is perpendicular with four pieces of outside plates 11 respectively, and Curved shaft support seat board 16 is provided with the oil sealing hole 164 and axle for being used for installing bent axle Bearing bore 165；Be additionally provided with casing 1 for cylinder 4 is installed cylinder mounting holes 13, the scavenging air valve installing port for installing scavenging air valve 14 and the gear delivery outlet 15 for power output.In the present embodiment, four pieces of outside plates 11 of composition casing 1 and Curved shaft support seat The material of plate 16 is aluminium alloy, can be made up of commercially available aluminium alloy plate, not only ensure that the bulk strength of engine housing, and The weight of engine can further be mitigated.In the present embodiment, Curved shaft support seat board 16 sets ten pieces, and by casing 1 along length Degree direction is divided into two cylinder mounting holes 13 that opposed distribution is correspondingly arranged in five work chamber, each work chamber, each Work chamber, which is correspondingly arranged between a scavenging air valve installing port 14, two adjacent work chamber, can be set a gear delivery outlet 15；It is connected between four pieces of outside plates 11 by fastening screw 12, also by screw between Curved shaft support seat board 16 and outside plate 11 Connection, cylinder 4 and scavenging air valve are installed on outside plate 11 by screw.Curved shaft support seat board 16 also uses splicing structure, and it includes First seat board 161 and the second seat board 162, the first seat board 161 and the second seat board 162 provided with the corresponding screw hole 163 in position, First seat board 161 and the second seat board 162 are screwed at connection, and the joint face of the first seat board 161 and the second seat board 162 In one of oil sealing hole 164 and bearing hole 165 diametrically.

As shown in Fig. 5 to Fig. 8, include bent axle, located at bent axle with the bent axle power output mechanism 2 that above-mentioned casing 1 matches On 4 crankshaft gears 22, output shaft 23 and be installed on output shaft 23 4 output shaft transmission gears 24, bent axle leads to Cross above-mentioned Curved shaft support seat board 16 to be installed on inside casing 1, and connected by connecting rod 5 with corresponding cylinder 4, output shaft 23 is pacified Outside casing 1, and each crankshaft gear 22 output shaft transmission gear 24 corresponding with one is meshed；Above-mentioned Bent axle includes the bent axle unit 21 of five, and each bent axle unit 21 includes two connecting rod necks 212 in 180 ° of settings, and this two It is equal that individual connecting rod neck 212 connects all cylinders 4 connected on two cylinders 4 being oppositely arranged in 180 °, bent axle by connecting rod 5 respectively On the relative outside plate 11 of opposed be distributed in casing 1 two；One transmission of crankshaft is set between two adjacent bent axle units 21 Gear 22.Two adjacent bent axle units 21 have an equal anglec of rotation clockwise or counterclockwise successively on bent axle α, and the product of the rotation angle α and the quantity of bent axle unit 21 is 360 °, in the present embodiment, bent axle unit 1 is 5, therefore rotation Corner α is 72 °, and from the end on observation of bent axle, the connecting rod neck 102 of bent axle is in five-pointed star type distribution (as shown in Figure 9).In this implementation In example, bent axle is sectionally smooth join structure, and each bent axle unit 21 is independent crankshaft section, adjacent two bent axle units 21 Connection end is mutually spliced by a crankshaft gear 22, and spline mistake is used between bent axle unit 21 and crankshaft gear 22 It is full of connection, ten pieces of above-mentioned Curved shaft support seat boards 16 are respectively arranged in the two ends of each bent axle unit 1, Curved shaft support seat board 16 will Five bent axle units 21 separate in independent work chamber.In addition, crankshaft gear 22 and output shaft in the present embodiment Can be using synchronous tradition between travelling gear 24, it would however also be possible to employ deceleration transmission, i.e. crankshaft gear 22 are passed with output shaft Gearratio between moving gear 24 can be preferably 1:1 or 1.5:1 or 2:1, when gearratio is 1:When 1, crankshaft gear 22 Synchronous Transmission is realized with output shaft transmission gear 24, when gearratio is 1.5:1 or 2:When 1, crankshaft gear 22 and output shaft Travelling gear 24 realizes deceleration transmission, realizes primary slow down.

Shown in hookup 1, cooling system 3 includes circulating pump 31, radiator 33 and copper pipe 32, and copper pipe 32 is wound in gas successively On the cylinder head of cylinder 4, circulating pump 31 and radiator 33 are connected on the pipeline of copper pipe 32, form coolant circulation loop.Cylinder 4 Be additionally provided with cylinder head it is anti-raise one's hat 41, effectively copper pipe 32 is limited on cylinder 4, it is ensured that engine is normally run.In addition, winding The shape of cross section of copper pipe 32 on the cylinder head of cylinder 4 is rectangle, adds the contact area of copper pipe 32 and cylinder head, copper pipe 32 Thermal conduction effect it is good, improve the cooling effectiveness of cooling system；Cooling system 3 in the present embodiment, its coolant pole It is few, significantly alleviate the weight and volume of engine.

It is noted that according to technical scheme, current testing machine has been successful, and actual motion, Engine speed has reached 10000r/min or so, stable.Also, the composite engine of the present invention, can also be realized All cylinders 8 are with quick-fried work, it is possible to provide more powerful power output.Other groups for the relevant engine do not addressed in the present invention It is same as the prior art into part, just repeat no more herein.

A kind of composite engine of the present invention, engine housing is formed using sheet material assembling combination, without high cost Casting die sinking processing, body structure is simple firmly, convenient processing and manufacture, interior-exterior parts install easy；Bent axle is non-heavily loaded bent axle, Avoid bent axle and play position deformation, and bent axle is in star-like distribution, can arrange more number of cylinders, cylinder uses opposed type on bent axle Distribution, greatly reduces the vibration of engine at work, reduces operation noise, the rotating speed and power of engine is obtained very big Lifting, rotating speed can reach 10000r/min or so, and bent axle alleviates the weight of engine without balance weight；Cooling system is used The copper pipe being wrapped on cylinder cylinder head carries out engine cool, makes coolant cycle heat exchange in copper pipe by circulating pump, and lead to Cross radiator to distribute heat in air, simplify the manufacturing process of engine-cooling system, the cooling of engine is fast, cooling Effect is good, extends the service life of engine, solves the radiating problem of 10000r/min or so rev-happy engine；Adopt With technical scheme, the volume and weight of engine is also reduced, manufacturing cost and the manufacture for reducing engine are difficult Degree, the increase of number of cylinders can be realized easily, the manufacture problem of multi-cylinder two stroke engine is solved, has filled up domestic outer space In vain.

Schematically the present invention and embodiments thereof are described above, the description does not have restricted, institute in accompanying drawing What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area Art personnel are enlightened by it, without departing from the spirit of the invention, without creatively designing and the technical scheme Similar frame mode and embodiment, all should belong to protection scope of the present invention.

Claims (9)

1. a kind of composite engine, including casing（1）, bent axle power output mechanism（2）, cylinder（4）, connecting rod（5）And cooling System（3）, it is characterised in that：

Described casing（1）Including four pieces of outside plates（11）At least two pieces Curved shaft support seat boards（16）, four pieces of outside plates（11）Successively It is fixedly connected as the body structure of cuboid, Curved shaft support seat board（16）It is installed in the body structure, and Curved shaft support seat Plate（16）Respectively with four pieces of outside plates（11）Perpendicular, described Curved shaft support seat board（16）It is provided with the oil sealing for being used for installing bent axle Hole（164）And bearing hole（165）；Described casing（1）On be additionally provided with for installing cylinder（4）Cylinder mounting holes（13）, use In the scavenging air valve installing port for installing scavenging air valve（14）With the gear delivery outlet for power output（15）；

Described bent axle power output mechanism（2）Some crankshaft gears including bent axle, according to certain rules on bent axle （22）, output shaft（23）Be installed on output shaft（23）On output shaft transmission gear（24）, described bent axle passes through above-mentioned Curved shaft support seat board（16）It is installed on casing（1）Inside, and pass through connecting rod（5）With corresponding cylinder（4）Connection, described output Axle（23）It is installed on casing（1）Outside, and each described crankshaft gear（22）Output shaft transmission corresponding with one Gear（24）It is meshed；Described bent axle includes two or more bent axle units（21）, each bent axle unit（21） Including the connecting rod neck two in 180 ° of settings（212）, and two connecting rod necks（212）Pass through connecting rod respectively（5）Connecting two is in 180 ° of cylinders for being oppositely arranged（4）, two adjacent bent axle units（21）Between set a crankshaft gear（22）；

Described cooling system（3）Including circulating pump（31）, radiator（33）And copper pipe（32）, described copper pipe（32）Twine successively It is around in cylinder（4）Cylinder head on, described circulating pump（31）And radiator（33）It is connected on copper pipe（32）Pipeline on, formed it is cold But liquid circulation loop.

2. a kind of composite engine according to claim 1, it is characterised in that：All gas connected on described bent axle Cylinder（4）It is opposed to be distributed in casing（1）Two relative outside plates（11）On.

3. a kind of composite engine according to claim 1, it is characterised in that：Two adjacent songs on described bent axle Axle unit（21）There is an equal rotation angle α, and the rotation angle α and bent axle unit clockwise or counterclockwise successively （21）Quantity product be 360 °.

4. a kind of composite engine according to claim 3, it is characterised in that：Each described bent axle unit（21）'s Two ends are correspondingly provided with a Curved shaft support seat board（16）, described Curved shaft support seat board（16）By each bent axle unit（21）Point It is interposed between in independent work chamber.

5. a kind of composite engine according to claim 4, it is characterised in that：Each described bent axle unit（21） For independent crankshaft section, two adjacent bent axle units（21）Connection end pass through a crankshaft gear（22）Mutually splice, And bent axle unit（21）With crankshaft gear（22）Between using spline interference connection.

6. a kind of composite engine according to claim 1 to 5 any one, it is characterised in that：Described bent axle is passed Moving gear（22）With output shaft transmission gear（24）Gearratio be 1:1 or 1.5:1 or 2:1.

7. a kind of composite engine according to claim 6, it is characterised in that：Described outside plate（11）Between by tight Gu screw（12）It is connected.

8. a kind of composite engine according to claim 6, it is characterised in that：Described Curved shaft support seat board（16）Bag Include the first seat board（161）With the second seat board（162）, described the first seat board（161）With the second seat board（162）It is screwed Connection, and the first seat board（161）With the second seat board（162）Joint face be in oil sealing hole（164）And bearing hole（165）One Diametrically.

9. a kind of composite engine according to claim 6, it is characterised in that：Described cylinder（4）Cylinder head on also Raised one's hat provided with anti-（41）.