CN105298679A - Combined engine - Google Patents
Combined engine Download PDFInfo
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- CN105298679A CN105298679A CN201510574145.7A CN201510574145A CN105298679A CN 105298679 A CN105298679 A CN 105298679A CN 201510574145 A CN201510574145 A CN 201510574145A CN 105298679 A CN105298679 A CN 105298679A
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- bent axle
- seat board
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Abstract
The invention discloses a combined engine, and belongs to the technical field of engine manufacturing. A box of the combined engine comprises outer plates and a crankshaft support base plate, wherein the four outer plates are fixedly connected in sequence to form a cuboid-shaped box structure; the crankshaft support base plate is mounted in the box structure, and is respectively perpendicular to the four outer plates; a crankshaft power output mechanism comprises a crankshaft, multiple crankshaft transmission gears arranged on the crankshaft, an output shaft, and output shaft transmission gears mounted on the output shaft; each crankshaft transmission gear is engaged with one corresponding output shaft transmission gear; a cooling system comprises a circulating pump, a radiator and a copper pipe; the copper pipe is wound on a cylinder head of a cylinder in sequence; and the circulating pump and the radiator are serially connected to a pipeline of the copper pipe. The combined engine can easily realize the number increment of the cylinder, and solves the manufacturing difficulties of multi-cylinder two-stroke engines; the rotating speed of the engine can reach 10,000 r/min; and the combined engine is high in power and light in weight, and fills the blank at home and abroad.
Description
Technical field
The present invention relates to a kind of motor, more particularly, relate to a kind of composite engine.
Background technique
Motor is otherwise known as engine, is a kind ofly a kind of machine that can be converted into another kind of more useful energy of form, to be widely used in locomotive, boats and ships and aircraft etc.General motor is primarily of compositions such as casing, bent axle, connecting rod, distribution device, fuel supply system, lubrication system, cooling system and ignition systems.
Engine housing is the skeleton forming motor, and be the installation foundation of each mechanism of motor and system, its inside and outside all major parts and annex being installed with motor, bear various load, therefore engine housing must have enough strength and stiffness.At present, engine housing almost all adopts cast iron or aluminum alloy casting bar none, different according to the structural type of engine housing, integrated type casing and separating box can be divided into, the former is cast inblock, overall processing, process more difficult, but assembly precision is higher; The latter can process respectively, is convenient to processing and assembling, but adds the workload of assembling.Adopt the engine housing of casting, the weight of motor is all larger, constrains the application in lightweight at ask for something, the high-power occasion of motor.Also have, current engine housing is once machine shaping, the cylinder number of its motor just determines, the increase and decrease of cylinder number cannot be realized, also engine power change cannot just be realized, when needing increase or less cylinder number, just need redesign, die sinking and casting processing engine housing, design iterations processing charges is very high.
Bent axle is most important parts in motor, and it bears the power that connecting rod transmits, and bent axle is subject to the acting in conjunction of the centrifugal force of gyrating mass, the gas inertia power of mechanical periodicity and reciprocal inertia force, makes bent axle bear the effect of flexion torsion load.Piston to-and-fro motion in cylinder body in each cylinder of multicylinder engine, each piston institute work is delivered on same bent axle by connecting rod, exported by reducing gear again, multiple cylinder institutes work is delivered to the output terminal of bent axle one by one, position distortion can have been produced at the output terminal of bent axle, cause Crank shaft Damage, this also becomes the key factor of restriction engine power and rotating speed lifting.In addition, in engine structure, also there is material impact for the performance of motor in the distribution form of bent axle and the arrangement of cylinder, directly affects the rotating speed of motor, operational shock and noise.
The groundwork of engine-cooling system is dispersed in air by the heat that motor produces.Engine-cooling system can be divided into two large classes, and a class is constituent, and another kind of is air cooling system.Air cooling system is early stage cooling technology, and it is dispelled the heat to cylinder by the aluminium flake of engine cylinder-body surface attachment, needs the fan of a powerful to dry to these aluminium flakes, aluminium flake is dispelled the heat in air, thus reaches the object of cooled engine.Constituent is carried out the circulation of liquid, can absorb heat when liquid is through high-temperature engine, thus reduce the temperature of motor, and constituent is the main flow cooling system of current motor.The cylinder head of water cooled engine and cylinder block are all cast with cooling jacket, water pump is by cooling liquid sucking-off be pressed and delivered to block jacket in radiator, the thermal temperature that cooling liquid absorbs cylinder block raises, then cylinder head jacket is flow to, flow to radiator from the thermostat at cylinder head top after cooling cylinder cap, due to the strong pumping of electric fan, air passes through radiator at a high speed by after forward direction, thus the cooling liquid after being heated is in the process flowing through radiator, heat is constantly dispersed in air and goes, cooling liquid is cooled, after cooled cooling liquid flows to the lower header of radiator, flow back into heavily again in motor under the effect of water pump, constantly circulate thus, the component worked under the high temperature conditions are constantly cooled.Existing water cooled engine needs to cast cooling jacket, and manufacturing process is comparatively loaded down with trivial details, and cost is higher; Further, cooling jacket adds volume and the weight of motor, cannot realize the manufacture of lightweight, high-power motor, therefore needs to improve available engine cooling system.
Summary of the invention
1. invent the technical problem that will solve
The object of the invention is to the above-mentioned deficiency overcoming available engine, a kind of composite engine is provided, adopt technological scheme of the present invention, engine housing adopts sheet material assembling combination to form, casting die sinking without the need to high cost is processed, and housing structure is simple firmly, convenient processing and manufacture, interior-exterior parts are installed easily; Bent axle is non-heavily loaded bent axle, avoid bent axle and play position distortion, and bent axle is star-like distribution, can arrange more multi cylinder quantity, cylinder adopts opposed type to distribute on bent axle, greatly reduce motor vibration at work, reduce and run noise, the rotating speed of motor and power are greatly improved, and rotating speed can reach about 10000r/min, bent axle, without the need to equilibrium block, alleviates the weight of motor; Cooling system adopts the copper pipe be wrapped on cylinder cylinder head to carry out engine cooling, cooling liquid cycle heat exchange in copper pipe is made by recycle pump, and distribute heat in air by radiator, simplify the manufacturing process of engine-cooling system, the cooling of motor is fast, good cooling results, extends the working life of motor, solves a heat radiation difficult problem for the rev-happy engine of about 10000r/min; Adopt technological scheme of the present invention, also reduce the volume and weight of motor, reduce manufacture cost and the manufacture difficulty of motor, the increase of number of cylinders can be realized easily, solve a manufacture difficult problem for multi-cylinder two stroke engine, fill up domestic and international blank.
2. technological scheme
For achieving the above object, technological scheme provided by the invention is:
A kind of composite engine of the present invention, comprises casing, bent axle power take-off mechanism, cylinder, connecting rod and cooling system, wherein:
Described casing comprises four pieces of outside plates and at least two pieces of Curved shaft support seat boards, four pieces of outside plates are fixedly connected sequentially as the housing structure of cuboid shape, Curved shaft support seat board is installed in this housing structure, and Curved shaft support seat board is perpendicular with four pieces of outside plates respectively, described Curved shaft support seat board is provided with oil sealing hole for installing bent axle and bearing hole; Described casing is also provided with the cylinder mounting holes for installing cylinder, for installing the scavenging air valve mount inlet of scavenging air valve and the gear delivery outlet for Power output;
Described bent axle power take-off mechanism comprises bent axle, is located at some crankshaft gears on bent axle, output shaft and the output shaft driving gear that is installed on output shaft according to certain rules, described bent axle is installed on box house by above-mentioned Curved shaft support seat board, and connected with corresponding cylinder by connecting rod, described output shaft is installed on casing outside, and all corresponding with one the output shaft driving gear of each described crankshaft gear is meshed;
Described cooling system comprises recycle pump, radiator and copper pipe, and described copper pipe is wound on the cylinder head of cylinder successively, and described recycle pump and radiator tandem, on the pipeline of copper pipe, form liquid circulation loop.
Further, described bent axle comprises two or more bent axle unit, each bent axle unit includes two connecting rod necks arranged in 180 °, and these two connecting rod necks connect two in 180 ° of cylinders be oppositely arranged respectively by connecting rod, between two adjacent bent axle unit, a crankshaft gear is set.
Further, all cylinders that described bent axle connects are all opposed to be distributed on the relative outside plate of two of casing.
Further, two bent axle unit adjacent on described bent axle have an equal angle of rotation α successively clockwise or counterclockwise, and amassing of the quantity of this angle of rotation α and bent axle unit is 360 °.
Further, the equal correspondence in two ends of each described bent axle unit is provided with a Curved shaft support seat board, and each bent axle unit divides and is interposed between independently in work chamber by described Curved shaft support seat board.
Further, each described bent axle unit is independently crankshaft section, and the connecting end of two adjacent bent axle unit is spliced mutually by a crankshaft gear, and bent axle unit is connected with adopting spline interference between crankshaft gear.
Further, the velocity ratio of described crankshaft gear and output shaft driving gear is 1:1 or 1.5:1 or 2:1.
Further, be connected and fixed by fastening screw between described outside plate.
Further, described Curved shaft support seat board comprises the first seat board and the second seat board, and the first described seat board and the second seat board are screwed connection, and the junction surface of the first seat board and the second seat board is in one of oil sealing hole and bearing hole diametrically.
Further, the cylinder head of described cylinder is also provided with anti-raising one's hat.
3. beneficial effect
Adopt technological scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) a kind of composite engine of the present invention, its casing adopts the mode of sheet material assembling combination, and the casting die sinking without the need to high cost is processed, outside plate thickness of slab is even, and adopts screw to be connected, and structure is simply firm, outside plate is drawn materials easily, convenient processing and manufacture, and interior-exterior parts is installed easily; Its bent axle power take-off mechanism utilizes output shaft the load on bent axle to be exported one by one, makes bent axle be non-heavily loaded bent axle, avoids bent axle and plays position distortion; Its cooling system utilizes copper pipe to be wrapped on cylinder cylinder head, cooling liquid cycle heat exchange in copper pipe is made by recycle pump, and distribute heat in air by radiator, the cooling simplifying the manufacturing process motor of engine-cooling system is fast, good cooling results, extend the working life of motor, solve a heat radiation difficult problem for the rev-happy engine of about 10000r/min; Meanwhile, also reduce the volume and weight of motor, reduce manufacture cost and the manufacture difficulty of motor, the increase of number of cylinders can be realized easily, solve a manufacture difficult problem for multi-cylinder two stroke engine, fill up domestic and international blank;
(2) a kind of composite engine of the present invention, its bent axle comprises two or more bent axle unit, each bent axle unit includes two connecting rod necks arranged in 180 °, and these two connecting rod necks connect two in 180 ° of cylinders be oppositely arranged respectively by connecting rod, between two adjacent bent axle unit, a crankshaft gear is set, cylinder adopts opposed type to distribute on bent axle, the moment that the cylinder piston of bent axle both sides produces is cancelled out each other, greatly reduce motor vibration at work, reduce and run noise, compare the in line engine of other types, without the need to equilibrium block on bent axle, the rotating speed of motor and power are greatly improved, rotating speed can reach about 10000r/min, and motor smooth working can be ensured, and alleviate the weight of motor, compared with other types motor, reduce engine consumption,
(3) a kind of composite engine of the present invention, two bent axle unit adjacent on its bent axle have an equal angle of rotation α successively clockwise or counterclockwise, and amassing of the quantity of this angle of rotation α and bent axle unit is 360 °, namely from the axial direction of bent axle, bent axle is star-like distribution, more multi cylinder quantity can be arranged, solve a manufacture difficult problem for multi-cylinder (4 cylinders, 6 cylinders, 8 cylinders, 10 cylinders, 12 cylinders etc.) two stroke engine, and the bent axle of star-like distribution adds bent axle running stability;
(4) a kind of composite engine of the present invention, the equal correspondence in two ends of its each bent axle unit is provided with a Curved shaft support seat board, each bent axle unit divides and is interposed between independently in work chamber by Curved shaft support seat board, Curved shaft support seat board not only can be used for the support of bent axle, also play the effect of canned motor casing, each bent axle unit, in respective active chamber office work, influences each other little; Also make crank rotation more stable along Crankshaft to the multiple Curved shaft support seat boards arranged, reduce bent axle and rock, improve engine operational stability;
(5) a kind of composite engine of the present invention, its each bent axle unit is independently crankshaft section, is convenient to Crankshaft Machining, and facilitates the installation of crankshaft gear and bearing; The connecting end of two adjacent bent axle unit is spliced mutually by a crankshaft gear, and bent axle unit is connected with adopting spline interference between crankshaft gear, easy to connect, is convenient to the angle adjustment between bent axle, and achieving number of cylinders easily increases;
(6) a kind of composite engine of the present invention, the velocity ratio of its crankshaft gear and output shaft driving gear is 1:1 or 1.5:1 or 2:1, the synchronization of bent axle not only can export by output shaft, and can realize elementary deceleration as required, applying flexible;
(7) a kind of composite engine of the present invention, its Curved shaft support seat board comprises the first seat board and the second seat board, first seat board and the second seat board are screwed connection, and the junction surface of the first seat board and the second seat board is in one of oil sealing hole and bearing hole diametrically, convenient processing and manufacture, is convenient to crankshaft installed;
(8) a kind of composite engine of the present invention, the cylinder head of its cylinder is also provided with anti-raising one's hat, can effectively prevents the copper pipe be wound on cylinder cylinder head from coming off, and ensures that motor normally runs; Further, the shape of cross section being wrapped in the copper pipe on cylinder cylinder head is rectangle, adds the area of contact of copper pipe and cylinder head, and the thermal conduction effect of copper pipe is good, improves the cooling effectiveness of cooling system; Coolant is few, significantly alleviates the weight and volume of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of composite engine of the present invention;
Fig. 2 is the structural representation of the combined box connected into by outside plate in the present invention;
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 is the structural representation of the bent axle power take-off mechanism in the present invention;
Fig. 6 is the structural representation (omitting Curved shaft support seat board) of the bent axle power take-off mechanism in the present invention;
Fig. 7 is the multiple bent axle unit spliceds in the present invention is the structural representation of integral shaft;
Fig. 8 is the structural representation of a bent axle unit in the present invention;
Fig. 9 is the star-like distribution schematic diagram of bent axle in the present invention.
Label declaration in schematic diagram:
1, casing; 11, outside plate; 12, fastening screw; 13, cylinder mounting holes; 14, scavenging air valve mount inlet; 15, gear delivery outlet; 16, Curved shaft support seat board; 161, the first seat board; 162, the second seat board; 163, screw hole; 164, oil sealing hole; 165, bearing hole; 2, bent axle power take-off mechanism; 21, bent axle unit; 211, main journal; 212, connecting rod neck; 213, spline; 22, crankshaft gear; 23, output shaft; 24, output shaft driving gear; 3, cooling system; 31, recycle pump; 32, copper pipe; 33, radiator; 4, cylinder; 41, prevent raising one's hat; 42, piston; 5, connecting rod.
Embodiment
For understanding content of the present invention further, the present invention is described in detail by reference to the accompanying drawings.
Shown in 1, a kind of composite engine of the present invention, comprises casing 1, bent axle power take-off mechanism 2, cylinder 4, connecting rod 5 and cooling system 3, wherein:
Casing 1 in the present invention is combined box, shown in Fig. 2 and Fig. 3, casing 1 comprises four pieces of outside plates 11 and at least two pieces of Curved shaft support seat boards 16, four pieces of outside plates 11 are fixedly connected sequentially as the housing structure of cuboid shape, this housing structure both ends open, Curved shaft support seat board 16 is installed in this housing structure, and Curved shaft support seat board 16 is perpendicular with four pieces of outside plates 11 respectively, Curved shaft support seat board 16 is provided with oil sealing hole 164 for installing bent axle and bearing hole 165, Curved shaft support seat board 16, for supporting bent axle, also plays the effect of canned motor casing simultaneously, casing 1 is also provided with the cylinder mounting holes 13 for installing cylinder 4, for installing the scavenging air valve mount inlet 14 of scavenging air valve and the gear delivery outlet 15 for Power output, cylinder mounting holes 13 is arranged on two pieces of relative outside plates 11 successively, make the opposed distribution of cylinder 4, scavenging air valve mount inlet 14 and gear delivery outlet 15 are located on two other relative outside plate 11 respectively, particularly, casing is divided at least one work chamber along the length direction of casing 1 by Curved shaft support seat board 16, in each work chamber, correspondence arranges two cylinder mounting holes 13 of opposed distribution, each work chamber correspondence arranges a scavenging air valve mount inlet 14, between two adjacent work chamber, a gear delivery outlet 15 can be set.In order to install and convenient disassembly, be connected and fixed by fastening screw 12 between four pieces of outside plates 11 in the present invention, be also connected by screw between Curved shaft support seat board 16 with outside plate 11, cylinder 4 and scavenging air valve are installed on outside plate 11 by screw.Adopt this housing structure, engine housing is processed without the need to the casting die sinking of high cost, and outside plate 11 thickness of slab is even, and thickness can be determined as required, and adopts screw to be connected, and structure is simply firm, and outside plate 11 is drawn materials easily, convenient processing and manufacture; Adopt combined-type box body structure, interior-exterior parts is installed easily, and box weight is light, significantly can reduce the manufacture cost of engine housing, and effectively reduces the oil consumption of motor.In addition, Curved shaft support seat board 16 comprises the first seat board 161 and the second seat board 162, first seat board 161 is provided with the corresponding screw hole in position 163 with the second seat board 162, first seat board 161 and the second seat board 162 are screwed connection, and the junction surface of the first seat board 161 and the second seat board 162 is in one of oil sealing hole 164 and bearing hole 165 diametrically, namely the half of oil sealing hole 164 and bearing hole 165 is positioned on the first seat board 161, second half is positioned on the second seat board 162, during installation, by the first seat board 161 and the second seat board 162 respectively to being buckled on bent axle, then screw is utilized the first seat board 161 and the second seat board 162 to be fixed together.
As shown in Figures 5 to 9, bent axle power take-off mechanism 2 in the present invention comprises bent axle, be located at the some crankshaft gears 22 on bent axle according to certain rules, output shaft 23 and the output shaft driving gear 24 be installed on output shaft 23, it is inner that bent axle is installed on casing 1 by above-mentioned Curved shaft support seat board 16, and connected with corresponding cylinder 4 by connecting rod 5, it is outside that output shaft 23 is installed on casing 1, and all corresponding with one the output shaft driving gear 24 of each crankshaft gear 22 is meshed, output shaft 23 is utilized the load on bent axle to be exported one by one, bent axle is made to become non-heavily loaded bent axle, avoid bent axle and play position distortion.Bent axle in the present invention comprises two or more bent axle unit 21, each bent axle unit 21 includes two connecting rod necks 212 (as shown in Figure 8) arranged in 180 °, and these two connecting rod necks 212 connect two in 180 ° of cylinders be oppositely arranged 4 respectively by connecting rod 5, all cylinders 4 that bent axle connects are all opposed to be distributed on the relative outside plate 11 of two of casing 1, the i.e. opposed distribution of cylinder 4, the moment that the piston 42 of bent axle both sides cylinder 4 produces is cancelled out each other, greatly reduce motor vibration at work, decrease operation noise, compare the in line engine of other types, without the need to equilibrium block on bent axle, the rotating speed of motor and power are greatly improved, rotating speed can reach about 10000r/min, and motor smooth working can be ensured, and alleviate the weight of motor.The arrange rule of crankshaft gear 22 on bent axle can be: arrange a crankshaft gear 22 between two adjacent bent axle unit 21.Two bent axle unit 21 adjacent on bent axle have an equal angle of rotation α successively clockwise or counterclockwise, and amassing of the quantity of this angle of rotation α and bent axle unit 21 is 360 °, namely from the axial direction of bent axle, bent axle is star-like distribution, more multi cylinder quantity can be arranged, solve a manufacture difficult problem for multi-cylinder (4 cylinders, 6 cylinders, 8 cylinders ..., 20 cylinders, 30 cylinders etc.) two stroke engine, fill up domestic and international blank.The equal correspondence in two ends of each bent axle unit 21 is provided with a Curved shaft support seat board 16, each bent axle unit 21 points is interposed between independently in work chamber by Curved shaft support seat board 16, multiple Curved shaft support seat board 16 is utilized to make crank rotation more stable, decrease bent axle to rock, improve engine operational stability.In addition, in the present invention, bent axle adopts split splicing construction, each bent axle unit 21 is independently crankshaft section (as shown in Figure 8), the connecting end of two adjacent bent axle unit 21 is by a crankshaft gear 22 phase splicing, and between bent axle unit 21 with crankshaft gear 22, adopt spline interference to be connected, particularly, this crankshaft section is made up of in 180 ° of connecting rod necks 212 arranged main journal 211 and two, spline 213 is respectively arranged with at the two ends of crankshaft section, crankshaft gear 22 is provided with the splined hole matched with above-mentioned spline 213, during installation, only need the end spline 213 of adjacent two bent axle unit 21 to be fitted in the splined hole of the crankshaft gear 22 between these two bent axle unit 21, after arranging like this, not only facilitate the connection between adjacent bent axle unit 21 and between bent axle unit 21 and crankshaft gear 22, and the angle adjustment facilitated between adjacent bent axle unit 21, number of cylinders can be realized easily increase.
Return shown in Fig. 1, cooling system 3 comprises recycle pump 31, radiator 33 and copper pipe 32, and copper pipe 32 is wound on the cylinder head of cylinder 4 successively, and recycle pump 31 and radiator 33 are connected on the pipeline of copper pipe 32, form liquid circulation loop, the cooling liquid of copper pipe 32 Inner eycle is water or antifreeze liquid.During engine operation, cooling liquid in radiator 33 forces to circulate in copper pipe 32 by recycle pump 31, heat on the cylinder head of cylinder 4 and the copper pipe 32 be wrapped on cylinder head carry out heat exchange, cooling liquid absorbs copper pipe 32 temperature, in cooling liquid inflow radiator 33 after intensification, radiation fan is utilized to be dispersed in air by the heat on radiator 33, coolant temperature is reduced cool down, flows by action at recycle pump 31 is continued in the copper pipe 32 be wound around through the be cooled cooling liquid of getting off of radiator 33, continuous circulation, thus engine temperature is constantly cooled, and reach temperature constant state.In the present invention, copper pipe 32 is utilized to be wrapped on cylinder head, make cooling liquid cycle heat exchange in copper pipe 32 by recycle pump 31, and distribute heat in air by radiator 33, without the need to making cooling jacket at engine housing direct casting, not only simplify the manufacturing process of engine-cooling system, reduce the volume and weight of motor, and the cooling of motor is fast, good cooling results, extend the working life of motor, solve a heat radiation difficult problem for the rev-happy engine of about 10000r/min.In addition, coming off to prevent from being wound in copper pipe 32 on cylinder head when engine operation, the cylinder head of the cylinder 4 in the present invention being also provided with and anti-ly raising one's hat 41, this is anti-raises one's hat and 41 can effectively be limited on cylinder 4 by copper pipe 32, ensures that motor normally runs.
Below in conjunction with embodiment, the invention will be further described.
Embodiment
The present embodiment is for opposed type 10 Cylinder engine, and as shown in Figure 1, a kind of composite engine of the present embodiment, comprises casing 1, bent axle power take-off mechanism 2, cylinder 4, connecting rod 5 and cooling system 3, wherein:
As shown in Figures 2 to 4, casing 1 comprises four pieces of outside plates 11 and at least two pieces of Curved shaft support seat boards 16, four pieces of outside plates 11 are fixedly connected sequentially as the housing structure of cuboid shape, Curved shaft support seat board 16 is installed in this housing structure, and Curved shaft support seat board 16 is perpendicular with four pieces of outside plates 11 respectively, Curved shaft support seat board 16 is provided with oil sealing hole 164 for installing bent axle and bearing hole 165; Casing 1 is also provided with the cylinder mounting holes 13 for installing cylinder 4, for installing the scavenging air valve mount inlet 14 of scavenging air valve and the gear delivery outlet 15 for Power output.In the present embodiment, composition four pieces of outside plates 11 of casing 1 and the material of Curved shaft support seat board 16 are aluminum alloy, can be made up, not only ensure that the bulk strength of engine housing, and can alleviate the weight of motor further of commercially available aluminium alloy plate.In the present embodiment, Curved shaft support seat board 16 arranges ten pieces, and casing 1 is divided into five work chamber along its length, in each work chamber, correspondence arranges two cylinder mounting holes 13 of opposed distribution, each work chamber correspondence is arranged between a scavenging air valve mount inlet 14, two adjacent work chamber can arrange a gear delivery outlet 15; Be connected and fixed by fastening screw 12 between four pieces of outside plates 11, be also connected by screw between Curved shaft support seat board 16 with outside plate 11, cylinder 4 and scavenging air valve are installed on outside plate 11 by screw.Curved shaft support seat board 16 also adopts splicing structure, it comprises the first seat board 161 and the second seat board 162, first seat board 161 is provided with the corresponding screw hole in position 163 with the second seat board 162, first seat board 161 and the second seat board 162 are screwed connection, and the junction surface of the first seat board 161 and the second seat board 162 is in one of oil sealing hole 164 and bearing hole 165 diametrically.
As shown in Fig. 5 to Fig. 8, the bent axle power take-off mechanism 2 matched with above-mentioned casing 1 comprises bent axle, 4 crankshaft gears 22 be located on bent axle, output shaft 23 and 4 output shaft driving gears 24 being installed on output shaft 23, it is inner that bent axle is installed on casing 1 by above-mentioned Curved shaft support seat board 16, and connected with corresponding cylinder 4 by connecting rod 5, it is outside that output shaft 23 is installed on casing 1, and all corresponding with one the output shaft driving gear 24 of each crankshaft gear 22 is meshed; Above-mentioned bent axle comprises the bent axle unit 21 of five, each bent axle unit 21 includes two connecting rod necks 212 arranged in 180 °, and these two connecting rod necks 212 connect two in 180 ° of cylinders be oppositely arranged 4 respectively by connecting rod 5, all cylinders 4 that bent axle connects are all opposed to be distributed on the relative outside plate 11 of two of casing 1; Between two adjacent bent axle unit 21, a crankshaft gear 22 is set.Two bent axle unit 21 adjacent on bent axle have an equal angle of rotation α successively clockwise or counterclockwise, and amassing of the quantity of this angle of rotation α and bent axle unit 21 is 360 °, in the present embodiment, bent axle unit 1 is 5, therefore angle of rotation α is 72 °, from the end on observation of bent axle, connecting rod neck 102 distribution (as shown in Figure 9) in five-pointed star type of bent axle.In the present embodiment, bent axle is sectionally smooth join structure, each bent axle unit 21 is independently crankshaft section, the connecting end of two adjacent bent axle unit 21 is by a crankshaft gear 22 phase splicing, and between bent axle unit 21 with crankshaft gear 22, adopt spline interference to be connected, ten pieces of above-mentioned Curved shaft support seat boards 16 are installed on the two ends of each bent axle unit 1 respectively, and five bent axle unit 21 points are interposed between independently in work chamber by Curved shaft support seat board 16.In addition, crankshaft gear 22 in the present embodiment can adopt synchronous tradition with between output shaft driving gear 24, also gearing down can be adopted, namely the velocity ratio between crankshaft gear 22 and output shaft driving gear 24 can be preferably 1:1 or 1.5:1 or 2:1, when velocity ratio is 1:1, crankshaft gear 22 and output shaft driving gear 24 realize Synchronous Transmission, when velocity ratio is 1.5:1 or 2:1, crankshaft gear 22 and output shaft driving gear 24 realize gearing down, realize elementary deceleration.
Shown in continue on drawing 1, cooling system 3 comprises recycle pump 31, radiator 33 and copper pipe 32, and copper pipe 32 is wound on the cylinder head of cylinder 4 successively, and recycle pump 31 and radiator 33 are connected on the pipeline of copper pipe 32, forms liquid circulation loop.The cylinder head of cylinder 4 is also provided with and prevents raising one's hat 41, effectively copper pipe 32 is limited on cylinder 4, ensure that motor normally runs.In addition, the shape of cross section being wrapped in the copper pipe 32 on the cylinder head of cylinder 4 is rectangle, and add the area of contact of copper pipe 32 and cylinder head, the thermal conduction effect of copper pipe 32 is good, improves the cooling effectiveness of cooling system; Cooling system 3 in the present embodiment, its coolant is few, significantly alleviates the weight and volume of motor.
It is worth mentioning that, according to technological scheme of the present invention, current testing machine is successful, and actual motion, engine speed reaches about 10000r/min, stable.Further, composite engine of the present invention, also can realize all cylinders 8 with quick-fried work, can provide more powerful power stage.Other constituent elements of the associated engine do not addressed in the present invention are all same as the prior art, just repeat no more at this.
A kind of composite engine of the present invention, engine housing adopts sheet material assembling combination to form, and the casting die sinking without the need to high cost is processed, and housing structure is simple firmly, convenient processing and manufacture, interior-exterior parts are installed easily; Bent axle is non-heavily loaded bent axle, avoid bent axle and play position distortion, and bent axle is star-like distribution, can arrange more multi cylinder quantity, cylinder adopts opposed type to distribute on bent axle, greatly reduce motor vibration at work, reduce and run noise, the rotating speed of motor and power are greatly improved, and rotating speed can reach about 10000r/min, bent axle, without the need to equilibrium block, alleviates the weight of motor; Cooling system adopts the copper pipe be wrapped on cylinder cylinder head to carry out engine cooling, cooling liquid cycle heat exchange in copper pipe is made by recycle pump, and distribute heat in air by radiator, simplify the manufacturing process of engine-cooling system, the cooling of motor is fast, good cooling results, extends the working life of motor, solves a heat radiation difficult problem for the rev-happy engine of about 10000r/min; Adopt technological scheme of the present invention, also reduce the volume and weight of motor, reduce manufacture cost and the manufacture difficulty of motor, the increase of number of cylinders can be realized easily, solve a manufacture difficult problem for multi-cylinder two stroke engine, fill up domestic and international blank.
Below be schematically described the present invention and mode of execution thereof, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, without creatively designing the mode of structure similar to this technological scheme and embodiment, all should protection scope of the present invention be belonged to.
Claims (10)
1. a composite engine, comprises casing (1), bent axle power take-off mechanism (2), cylinder (4), connecting rod (5) and cooling system (3), it is characterized in that:
Described casing (1) comprises four pieces of outside plates (11) and at least two pieces of Curved shaft support seat boards (16), four pieces of outside plates (11) are fixedly connected sequentially as the housing structure of cuboid shape, Curved shaft support seat board (16) is installed in this housing structure, and Curved shaft support seat board (16) is perpendicular with four pieces of outside plates (11) respectively, described Curved shaft support seat board (16) is provided with oil sealing hole (164) for installing bent axle and bearing hole (165); Described casing (1) is also provided with the cylinder mounting holes (13) for installing cylinder (4), for installing the scavenging air valve mount inlet (14) of scavenging air valve and the gear delivery outlet (15) for Power output;
Described bent axle power take-off mechanism (2) comprises bent axle, be located at the some crankshaft gears (22) on bent axle according to certain rules, output shaft (23) and the output shaft driving gear (24) be installed on output shaft (23), it is inner that described bent axle is installed on casing (1) by above-mentioned Curved shaft support seat board (16), and connected with corresponding cylinder (4) by connecting rod (5), it is outside that described output shaft (23) is installed on casing (1), and all corresponding with one the output shaft driving gear (24) of each described crankshaft gear (22) is meshed,
Described cooling system (3) comprises recycle pump (31), radiator (33) and copper pipe (32), described copper pipe (32) is wound on the cylinder head of cylinder (4) successively, described recycle pump (31) and radiator (33) are connected on the pipeline of copper pipe (32), form liquid circulation loop.
2. a kind of composite engine according to claim 1, it is characterized in that: described bent axle comprises two or more bent axle unit (21), each bent axle unit (21) includes two connecting rod necks (212) arranged in 180 °, and these two connecting rod necks (212) connect two in 180 ° of cylinders be oppositely arranged (4) respectively by connecting rod (5), between two adjacent bent axle unit (21), a crankshaft gear (22) is set.
3. a kind of composite engine according to claim 1, is characterized in that: all cylinders (4) that described bent axle connects are all opposed to be distributed on the relative outside plate (11) of two of casing (1).
4. a kind of composite engine according to claim 2, it is characterized in that: two bent axle unit (21) adjacent on described bent axle have an equal angle of rotation α successively clockwise or counterclockwise, and amassing of the quantity of this angle of rotation α and bent axle unit (21) is 360 °.
5. a kind of composite engine according to claim 4, it is characterized in that: the equal correspondence in two ends of each described bent axle unit (21) is provided with a Curved shaft support seat board (16), each bent axle unit (21) point is interposed between independently in work chamber by described Curved shaft support seat board (16).
6. a kind of composite engine according to claim 5, it is characterized in that: each described bent axle unit (21) is independently crankshaft section, the connecting end of two adjacent bent axle unit (21) is spliced mutually by a crankshaft gear (22), and adopts spline interference to be connected between bent axle unit (21) with crankshaft gear (22).
7. a kind of composite engine according to claim 1 to 6 any one, is characterized in that: described crankshaft gear (22) is 1:1 or 1.5:1 or 2:1 with the velocity ratio of output shaft driving gear (24).
8. a kind of composite engine according to claim 7, is characterized in that: be connected and fixed by fastening screw (12) between described outside plate (11).
9. a kind of composite engine according to claim 7, it is characterized in that: described Curved shaft support seat board (16) comprises the first seat board (161) and the second seat board (162), described the first seat board (161) and the second seat board (162) are screwed connection, and the junction surface of the first seat board (161) and the second seat board (162) is in one of oil sealing hole (164) and bearing hole (165) diametrically.
10. a kind of composite engine according to claim 7, is characterized in that: the cylinder head of described cylinder (4) is also provided with and prevents raising one's hat (41).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574145.7A CN105298679B (en) | 2015-09-10 | 2015-09-10 | A kind of composite engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574145.7A CN105298679B (en) | 2015-09-10 | 2015-09-10 | A kind of composite engine |
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| CN105298679A true CN105298679A (en) | 2016-02-03 |
| CN105298679B CN105298679B (en) | 2017-10-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004270757A (en) * | 2003-03-06 | 2004-09-30 | Honda Motor Co Ltd | Crankshaft |
| CN101984242A (en) * | 2010-11-17 | 2011-03-09 | 张英华 | Energy-saving and environmental-friendly engine |
| RU2491451C1 (en) * | 2012-05-16 | 2013-08-27 | Сергей Николаевич Новосельцев | Crankshaft element and composite crankshaft |
| CN203847548U (en) * | 2014-05-04 | 2014-09-24 | 吴小江 | Crankshaft assembly |
-
2015
- 2015-09-10 CN CN201510574145.7A patent/CN105298679B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004270757A (en) * | 2003-03-06 | 2004-09-30 | Honda Motor Co Ltd | Crankshaft |
| CN101984242A (en) * | 2010-11-17 | 2011-03-09 | 张英华 | Energy-saving and environmental-friendly engine |
| RU2491451C1 (en) * | 2012-05-16 | 2013-08-27 | Сергей Николаевич Новосельцев | Crankshaft element and composite crankshaft |
| CN203847548U (en) * | 2014-05-04 | 2014-09-24 | 吴小江 | Crankshaft assembly |
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| CN105298679B (en) | 2017-10-17 |
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