CN103047008A - Any-tooth-difference movable type high rotation speed internal combustion engine - Google Patents
Any-tooth-difference movable type high rotation speed internal combustion engine Download PDFInfo
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Abstract
The invention provides an any-tooth-difference movable type high rotation speed internal combustion engine and relates to the field of combustion gas power. Eight cylinder are annularly and evenly distributed around an outward-protruding inner gear to enable the outward-protruding inner gear to be subjected to zero stress, cylinder pistons directly act on the outward-protruding inner gear through pushing rods, and power is transferred to an output shaft connected with a multiple-phase shock wave cam key through transmission of the outward-protruding inner gear and a multiple-phase cam type moving oscillating teeth. A connecting rod and a crankshaft in a traditional internal combustion engine are omitted, an outward-protruding inner multiple-phase cam type moving transmission mechanism has the advantages of being free of eccentric mass and having inertia force and working load self balance, the rotating speed of the output shaft depends on the transmission ratio of the oscillating teeth, if an oscillating tooth frame is fixed, a multiple-phase shock wave cam performs high-speed output, and the high rotation speed internal combustion engine can be widely applied to the field of machines needing high rotation speed, such as a helicopter engine, a small power generator and the like. When the output rotation speed is fixed, emission of harmful gas can be reduced. The any-tooth-difference movable type high rotation speed internal combustion engine is simple and compact in structure, small in axial size, self-balancing in stress and stable in operation.
Description
Technical field
The present invention relates to the gas power field, more particularly, is the portable high rotating speed internal-combustion engine of a kind of any tooth difference.
Background technique
At present, general internal-combustion engine (motor) all is comprised of body, connecting rod, distribution device, cooling system, lubrication system, oil-fired system and ignition system etc., and that working procedure is divided is air-breathing, compression, work by combustion, four strokes of exhaust.What the driving mechanism of this class internal-combustion engine used all is connecting rod, by connecting rod with the transmission of power of piston to bent axle, and change the linear reciprocating motion of piston into bent axle rotatablely move.Because this internal-combustion engine is to oppress by the plane motion of the straight line motion of piston and connecting rod to order about bent axle and rotate, and exists larger friction between each kinematic pair thereby cause, and causes the internal-combustion engine transmission efficiency low.These crankshaft-link rod type internal-combustion engines also have following major defect: volume is large; Uneven centrifugal force on connecting rod, the bent axle is larger; Impact greatly, vibration is large; And cause thus larger mechanical wear, internal-combustion engine life-span is shortened; Complex structure, processing, manufacturing, assembling etc. are all relatively more difficult; In addition, general internal-combustion engine and speed change gear are two independently machines, and internal-combustion engine needs the other speed changer of installing to be used for follow-up speed change usually, causes bulky.
Summary of the invention
The objective of the invention is: the above-mentioned shortcoming that exists for overcoming existing crankshaft-link rod type internal-combustion engine, the invention provides a kind of simple and compact for structure, volume is little, impact shock is little, smooth running, power is large, the life-span is long, efficient is high high speed quartastroke engine---any portable high rotating speed internal-combustion engine of tooth difference.
The present invention is that the technological scheme that its technical problem of solution is taked is: the portable high rotating speed internal-combustion engine of a kind of any tooth difference mainly is comprised of cylinder head (1), exhaust valve (2), intake valve (3), cylinder (4), cylinder body (5), push rod (6), piston (7), spring (8), roller (9), evagination internal gear (10), oscillating tooth (11), movable teeth rack (12), heterogeneous shock wave cam (13), output shaft (14) and starting system, cooling system, oil supply system, lubrication system, gas distribution system etc.It is characterized in that: eight cylinders (4) circular symmetric be evenly arranged in evagination internal gear (10) around, heterogeneous cammingly movement and transmission mechanism changes the linear reciprocating motion of piston into output shaft rotatablely move in the evagination---and cylinder piston (7) directly acts on the evagination internal gear (10) by push rod (6), promote evagination internal gear (10) rotation, the inside toothed surface of evagination internal gear (10) promotes oscillating tooth (11) motion, oscillating tooth under movable teeth rack (12) effect of contraction along movable teeth rack radially guide groove reciprocatingly move and move, force oscillating tooth (11) and heterogeneous shock wave cam (13) engagement, drive heterogeneous shock wave cam (13) and rotate, and by with output shaft (14) outputting power of heterogeneous shock wave cam (13) key connecting.
In technique scheme, heterogeneous cammingly movement and transmission mechanism is formed by cam mechanism and heterogeneous cammingly movable teeth drive Mechanism Combination in the evagination.Wherein, cam mechanism is by cylinder body (5), spring (8), push rod (6), evagination internal gear (10), roller (9) forms, one end of push rod (6) and piston (7) are fixedly connected, the other end is installed roller (9), roller (9) makes contacting by sliding friction between push rod (6) and the evagination internal gear (10) become rolling friction, one end of spring (8) is fixed on below the piston (7), the other end is fixed on the boss of cylinder bottom, spring (8) contacts the roller (9) on the push rod all the time with evagination internal gear (10), each cylinder is furnished with piston, push rod and spring with roller.
Heterogeneous cammingly movable teeth drive mechanism is by evagination internal gear (10), oscillating tooth (11), movable teeth rack (12), heterogeneous shock wave cam (13) and form with the output shaft (14) of its key connecting, the outer surface of evagination internal gear (10) is four phase cam profiles, inside is the tooth profile of inner gear face in the heterogeneous cammingly movable teeth drive, so evagination internal gear (10) is the cam in the cam mechanism, it is again the internal gear in the heterogeneous cammingly movable teeth drive mechanism, evagination internal gear (10) organically unites two into one internal-combustion engine and heterogeneous cammingly movable teeth drive, and whole heterogeneous cammingly movable teeth drive mechanism is built in the inside of evagination internal gear (10).Heterogeneous external cam (13) is to have three three-phase cams that are mutually the projection of 120 ° of angles and axle center symmetry, the sole mass complete equilibrium, and its profilogram is cosine curve.
The outer surface cam profile curve of evagination internal gear (10) can be selected according to the actual design needs, to obtain best dynamic performance, improves the energy conversion efficiency of internal-combustion engine.The shaft axis of the parts such as output shaft (14), evagination internal gear (10), movable teeth rack (12) and heterogeneous shock wave cam (13) overlaps and is supported by rack bearing.Oscillating tooth is counted Z
11Wave number Z with evagination internal gear (10)
10Differ is 3, movable teeth rack (12) connects firmly with frame, heterogeneous shock wave cam (13) and output shaft (14) key connecting, oscillating tooth (11) is meshed respectively with evagination internal gear (10), heterogeneous shock wave cam (13) and all forms higher pair, oscillating tooth (11) can move in the radially guide groove of movable teeth rack (12), and oscillating tooth (11) forms sliding pair with movable teeth rack (12).
In technique scheme, the outside of evagination internal gear (10) is to have four four phase cams that are mutually the projection of 90 ° of angles and axle center symmetry, eight cylinders (4) circular symmetric be distributed on evagination internal gear (10) around, wherein any two 180 ° of cylinder pistons that are arranged symmetrically with (7) working staties of being separated by are synchronous, two cylinder pistons that working state is synchronous are as one group, four groups of cylinder pistons carry out suction stroke successively, compression stroke, gaseous combustion expansion stroke and exhaust stroke, the stroke of piston process of two adjacent groups cylinder is 45 ° corresponding to the phase difference of evagination internal gear (10) corner.
In technique scheme, the rotating speed of output shaft (14) depends on the rotating speed of evagination internal gear (10) and the velocity ratio of heterogeneous cammingly movable teeth drive, and suitably select heterogeneous cammingly movable teeth drive join the tooth scheme, less velocity ratio can be obtained, at a high speed output can be realized.In the heterogeneous cammingly movable teeth drive, evagination internal gear (10) is multiple tooth engagement with oscillating tooth (11), so can realize relatively high power, steadily transmission.
Compared with the prior art main inventive point of the present invention is.
1. eight air cylinder annular symmetries are distributed on around the evagination internal gear, and cylinder piston directly acts on the evagination internal gear by push rod, and power is passed to output shaft output by the evagination internal gear through heterogeneous cammingly movable teeth drive.
2. the outside of evagination internal gear is to have four four phase cams that are mutually 90 ° of angle projections, and inside is the structure of the tooth profile of inner gear face of heterogeneous cammingly movable teeth drive, heterogeneous cammingly movable teeth drive mechanism is built in the cam of cam mechanism, cam in the cam mechanism and the internal gear in the heterogeneous cammingly movable teeth drive mechanism are united two into one, obtain heterogeneous cammingly movement and transmission mechanism in the evagination, and replace connecting rod in the existing crankshaft-link rod type internal-combustion engine with this new mechanism, the Oscillating Tooth Gear Reducer technology is introduced technical field of internal combustion engines, not only thoroughly removed crankshaft-and-connecting-rod, and internal-combustion engine and speed change gear (speed increaser) united two into one, obtained a kind of compact structure, small and exquisite novel high rotary speed power machine, compare with crankshaft-link rod type internal-combustion engine, internal-combustion engine axial dimension of the present invention reduces greatly, and under same rotational speed required, the discharging of harmful gas reduced greatly.
3. the pto＝power take-off of internal-combustion engine is the output shaft that connects with heterogeneous shock wave cam key, heterogeneous cammingly movable teeth drive is by evagination internal gear input power, and movable teeth rack is fixed, heterogeneous shock wave cam output, can realize less velocity ratio, internal-combustion engine high speed outputting power.
4. the output shaft rotating speed depends on the velocity ratio of heterogeneous cammingly movable teeth drive, and suitably select heterogeneous cammingly movable teeth drive join the tooth scheme, can obtain less velocity ratio, and shock wave device is heterogeneous shock wave cam, oscillating tooth is counted Z
11Wave number Z with the evagination internal gear
10Differing is 3, does not need eccentric the installation, and whole mechanism is subjected to force self-balanced.
5. heterogeneous external cam is to have three three-phase cams that are mutually the projection of 120 ° of angles and axle center symmetry, sole mass complete equilibrium.
6. in the heterogeneous cammingly movable teeth drive, evagination internal gear and oscillating tooth are multiple tooth engagement, so can realize relatively high power, steadily transmission.
The present invention compares with existing crankshaft-link rod type internal-combustion engine, has following useful technique effect.
1. impact shock is little, noise is little, smooth running
Because the present invention adopts heterogeneous cammingly movement and transmission mechanism in the evagination to replace connecting rod in the existing crankshaft-link rod type internal-combustion engine, completely abolished crankshaft-and-connecting-rod, evagination internal gear and heterogeneous cammingly movable teeth drive mechanism all are axially symmetric structures, there are not eccentric mass and uneven centrifugal force, eliminated because of bent axle mass eccentricity, connecting rod do inertial force and tilting moment and consequent impact shock and noise that plane motion causes, eliminated vibration and noise that the connecting rod beat causes the Piston impinging cylinder wall to cause; Eight air cylinder annular symmetries are distributed on around the evagination internal gear, wherein any two cylinder piston working staties of being arranged symmetrically with of being separated by 180 ° are synchronous, that is: or simultaneously air-breathing or simultaneously compression or simultaneously gaseous combustion acting or simultaneously exhaust, therefore, always paired appearance of impact force can be cancelled out each other, and it is zero that the evagination internal gear is made a concerted effort, so impact shock is less, thereby internal combustion engine operation is very steady.
Compact structure, volume is little, lightweight, axial dimension is little
Owing to cancelled the bent axle of bulky complex, each air cylinder annular symmetry is distributed on around the evagination internal gear, and heterogeneous cammingly movable teeth drive mechanism is built in the evagination internal gear, the evagination internal gear is the cam in the cam mechanism, again the internal gear in the heterogeneous cammingly movable teeth drive mechanism, so Structure of Internal-Combustion Engine of the present invention is compact, axial dimension is little, volume is little, lightweight; The present invention adopts the power that heterogeneous cammingly movement and transmission mechanism output piston produces in the evagination, and internal-combustion engine and speed change gear (speed increaser) are united two into one, and need not other distribution transforming speed variator, and structure is reduced greatly, so compact structure, small and exquisite.
3. transmission is smaller, the integrated speedup of complete machine, high rotating speed output
The pto＝power take-off of this internal-combustion engine is the output shaft that connects with heterogeneous shock wave cam key, heterogeneous cammingly movable teeth drive is with evagination internal gear input power, movable teeth rack is fixed, heterogeneous shock wave cam output, suitably select to join the tooth scheme, can realize less velocity ratio, and still keep the plurality of advantages such as compact structure, quality is little, volume is little.Internal-combustion engine high speed outputting power needing can be widely used in high-revolving field, such as helicopter engine, small generator etc.Higher rotating speed output when the demand rotating speed is certain, can greatly reduce the discharging of harmful gas, reaches the purpose of energy-saving and emission-reduction.
Fretting wear little, be subjected to force self-balanced, oil consumption is low, efficient is high, the life-span is long
Because the driving force of piston is directly passed to the evagination internal gear by the push rod roller and passes to output shaft output by heterogeneous cammingly movable teeth drive.For rolling friction connects, transmission efficiency is high between piston push rod and the evagination internal gear, has cancelled serious wear, connecting rod that friction power loss is large.Heterogeneous cammingly movable teeth drive is that multiple tooth engagement, bearing capacity are larger, and transmission efficiency is high, and because of multiple tooth simultaneously engagement, output rigidity is large, and transmission is also more steadily reliable.Heterogeneous shock wave cam can be realized shock wave and guarantee himself and the stressed autobalance of inner oscillating tooth simultaneously, in transmission device, do not exist and need eccentric inertial force, excitation force and the tilting moment etc. of shock wave device being installed and existing in the poor Oscillating Tooth Gear Reducer of a tooth, avoided the vibrational excitation of transmission device from transmission principle, thereby be conducive to improve the efficient of transmission, its efficiency value can reach more than 0.9.The mechanical friction wearing and tearing are also less, and oil consumption is low, and internal-combustion engine life-span is longer.
5. have good Economy, power character and exhaust index
Because the characteristics of motion of piston depends on the exterior contour curve of evagination internal gear fully, so can design cam profile by choosing appropriate piston movement rule, and appropriate piston movement rule should make abundant, perfect, the fuel thermal energy utilization ratio height of gaseous combustion in the cylinder, therefore, internal-combustion engine of the present invention has good power character, Economy and exhaust index, can reach the purpose of energy-conserving and environment-protective and raising gear efficiency.
6. simple in structure, good manufacturability, cost of production are low
Design of part in the internal-combustion engine of the present invention is simple, good manufacturability, cost of production are low, has completely abolished the crankshaft-and-connecting-rod of complex structure, manufacturing difficulty.
7. bearing capacity is larger, and rotating speed is steady
Heterogeneous cammingly movable teeth drive is multiple tooth engagement, stable drive, and oscillating tooth can jointly be shared load and realize power dividing.So internal combustion engine operation is steady, the ability of opposing shock and vibration is stronger, and bearing capacity is large.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.But what particularly point out is; the specific embodiment of the present invention is not limited to the described form of following embodiment; the those skilled in the art is in the situation of not paying creative work; also can design at an easy rate other embodiment; therefore the embodiment of embodiment given below should be interpreted as protection scope of the present invention, protection scope of the present invention is limited in given embodiment.
Fig. 1 is the structural representation of the portable high rotating speed internal-combustion engine of any tooth difference.
Fig. 2 is the schematic representation of evagination internal gear and heterogeneous cammingly movable teeth drive mechanism.
Above-mentioned each attached picture in picture is known the sign of label to liking: 1 cylinder head, 2 exhaust valves, 3 intake valves, 4 cylinders, 5 cylinder bodies, 6 push rods, 7 pistons, 8 springs, 9 rollers, 10 evagination internal gears, 11 oscillating tooths, 12 movable teeth racks, 13 heterogeneous shock wave cams, 14 output shafts.
Specific embodiment
Fig. 1, the portable high rotating speed internal-combustion engine of any tooth difference shown in Figure 2 is comprised of cylinder head (1), exhaust valve (2), intake valve (3), cylinder (4), cylinder body (5), push rod (6), piston (7), spring (8), roller (9), evagination internal gear (10), oscillating tooth (11), movable teeth rack (12), heterogeneous shock wave cam (13), output shaft (14) etc.Eight cylinders (4) axle center symmetrically annular be distributed on evagination internal gear (10) around, the angle of adjacent two cylinders is 45 °.A piston (7) is arranged in each cylinder (4), one end of push rod (6) and piston (7) are consolidated, the other end is equipped with roller (9), it is that rolling friction connects that roller (9) makes connecting between push rod (6) and the evagination internal gear (10), one end of spring (8) is fixed on piston (7) bottom, the other end is fixed on the boss of cylinder (4) bottom, and the effect of spring (8) is that the roller (9) on the push rod (6) is contacted with evagination internal gear (10) all the time.The outside of evagination internal gear (10) is four phase cams with four projections that are mutually 90 ° of angles and axle center symmetry, and inside is the tooth profile of inner gear face.Evagination internal gear (10) is organically integrated cam mechanism and heterogeneous cammingly movable teeth drive mechanism.Evagination internal gear (10) is the cam in the cam mechanism, is again the internal gear in the heterogeneous cammingly movable teeth drive mechanism, and whole heterogeneous cammingly movable teeth drive mechanism is embedded in the inside of evagination internal gear (10).Heterogeneous external cam (13) is to have three three-phase cams that are mutually the projection of 120 ° of angles and axle center symmetry, the sole mass complete equilibrium, and adopting cosine curve in the present embodiment is the profilogram of heterogeneous external cam (13).Heterogeneous cammingly movable teeth drive mechanism forms by evagination internal gear (10), oscillating tooth (11), movable teeth rack (12), heterogeneous shock wave cam (13) with the output shaft (14) of heterogeneous shock wave cam (13) key connecting.Movable teeth rack (12) connects firmly with frame, oscillating tooth (11) and evagination internal gear (10), heterogeneous shock wave cam (13) the formation higher pair that is meshed respectively, oscillating tooth (11) can move in the radially guide groove of movable teeth rack (12), and oscillating tooth and movable teeth rack (12) form sliding pair.The shaft axis of the parts such as output shaft (14), evagination internal gear (10), movable teeth rack (12) and heterogeneous shock wave cam (13) overlaps and is supported by rack bearing.Therefore internal-combustion engine of the present invention not only has the series of advantages of heterogeneous cammingly movable teeth drive, and structure is very compact.The outer surface cam profile curve of evagination internal gear (10) can be chosen different curves on demand.Present embodiment is made the cosine acceleration motion rule by piston (7) and is determined cam profile curve, namely when evagination internal gear (10) uniform rotation, piston (7) does reciprocating linear motion by the cosine acceleration motion rule, and its cycle of motion is 1/4th of evagination internal gear (10) period of rotation.The pto＝power take-off of present embodiment internal-combustion engine is the output shaft (14) with heterogeneous shock wave cam (13) key connecting, heterogeneous cammingly movable teeth drive is with evagination internal gear (10) input power, movable teeth rack is fixed, heterogeneous shock wave cam (13) output, can realize larger velocity ratio, but internal-combustion engine high speed outputting power.
The working principle of internal-combustion engine of the present invention is: when internal combustion engine, piston (7) in the gaseous combustion acting cylinder, its driving force acts on the evagination internal gear (10) by push rod (6) and roller (9), promote evagination internal gear (10) and be rotated counterclockwise, power is passed to output shaft (14) output by evagination internal gear (10) through heterogeneous cammingly movable teeth drive mechanism; Because the rotation of evagination internal gear (10), roller (9) rolls and make push rod (6) and the piston (7) that not have to do work slides in cylinder (4) along evagination internal gear (10) profile, finishes task air-breathing or pressurized gas or exhaust.In Fig. 1, with cylinder a and e, b and f, c and g, d and h each as one group, then can be divided into four groups of cylinders.If the piston among cylinder a, the e is in the initial position of suction stroke, piston among cylinder b, the f is in the initial position of compression stroke, piston among cylinder c, the g is in the initial position of gaseous combustion expansion stroke, piston among cylinder d, the h is in the initial position of exhaust stroke, the stroke process of two adjacent groups cylinder piston differs a stroke, is 45 ° corresponding to the phase difference of evagination internal gear (10) corner; Then evagination internal gear (10) turns over after 45 ° counterclockwise, cylinder b, the f acting that takes fire again, the evagination internal gear turns over after 45 ° more counterclockwise, cylinder a, the e acting that takes fire again, cylinder a, then be cylinder d after the e work by combustion is finished, the h acting that takes fire, take turns to again afterwards cylinder c and g work by combustion, so circulation is gone down, evagination internal gear (10) is continuously and smoothly turned round, it is mobile in the radially guide groove of movable teeth rack (12) that the internal tooth form face of evagination internal gear promotes oscillating tooth (11), under the effect of contraction of movable teeth rack (12), force oscillating tooth (11) and heterogeneous shock wave cam (13) engagement, drive heterogeneous shock wave cam (13) and rotate, and by with the output shaft (14) of heterogeneous shock wave cam (13) key connecting continuously and smoothly with power and movement output.Because two cylinders in every group of cylinder are separated by 180 ° and are arranged symmetrically with, and working state is identical at any time, so eight pistons (7) to the comprehensive function effect of evagination internal gear (10) are: evagination internal gear (10) only is subjected to the effect of pure couple, and to make a concerted effort be zero.Because evagination internal gear (10) and heterogeneous cammingly movable teeth drive mechanism not only have structural symmetry, and stressed also be symmetrical, so be zero their suffered making a concerted effort, only be subjected to force couple role.Therefore the impact shock of internal-combustion engine of the present invention is little, smooth running.
Be the speed change characteristic of explanation internal-combustion engine of the present invention, the number of teeth of establishing oscillating tooth (11) is Z
11=8, the wave number of evagination internal gear (10) is Z
10=11, the rotating speed of evagination internal gear (10) is n
10=600r/min, movable teeth rack (12) is fixedly connected with frame, so the angular velocity of movable teeth rack (12)
, then the velocity ratio of heterogeneous cammingly movable teeth drive is:
So: n
14=n
13=2200r/min, visible heterogeneous shock wave cam (13), output shaft (14) turn to identical with evagination internal gear (10), the rotating speed of output shaft (14) improves greatly, internal-combustion engine does not need additionally to add speed changer just can realize the high speed outputting power.This specific character needing can be widely used in high-revolving field, such as helicopter engine, small generator etc., and output speed one regularly can reduce the discharging of harmful gas, reaches the purpose of energy-saving and emission-reduction.
The internal-combustion engine of present embodiment also is provided with starting system, gas distribution system, lubrication system, oil supply system and cooling system etc.
Claims (6)
1. any portable high rotating speed internal-combustion engine of tooth difference, mainly by cylinder head (1), exhaust valve (2), intake valve (3), cylinder (4), cylinder body (5), push rod (6), piston (7), spring (8), roller (9), evagination internal gear (10), oscillating tooth (11), movable teeth rack (12), heterogeneous shock wave cam (13), output shaft (14) and oil supply system, cooling system, starting system, gas distribution system, lubrication system forms, it is characterized in that: eight cylinders (4) circular symmetric be distributed on evagination internal gear (10) around, heterogeneous cammingly movement and transmission mechanism changes the linear reciprocating motion of piston (7) into output shaft rotatablely move in the evagination---and cylinder piston (7) directly acts on the evagination internal gear (10) by push rod (6), promote evagination internal gear (10) rotation, power is passed to the at a high speed output of output shaft (14) that connects with heterogeneous shock wave cam key by the evagination internal gear through heterogeneous cammingly movable teeth drive, evagination internal gear (10) organically combines internal-combustion engine and heterogeneous cammingly movable teeth drive together, make internal-combustion engine need not to be equipped with again speed changer, at a high speed output.
2. the portable high rotating speed internal-combustion engine of any tooth difference according to claim 1 is characterized in that: heterogeneous cammingly movement and transmission mechanism is organically combined by cam mechanism and heterogeneous cammingly movable teeth drive mechanism in the above-mentioned evagination; Wherein, cam mechanism is comprised of cylinder body (5), spring (8), push rod (6), evagination internal gear (10), one end of push rod (6) and piston (7) are fixedly connected, the other end is installed roller (9), roller (9) makes between push rod (6) and the evagination internal gear (10) as rolling friction connects, and spring (8) contacts the roller (9) on the push rod (6) all the time with evagination internal gear (10); Heterogeneous cammingly movable teeth drive mechanism forms by evagination internal gear (10), oscillating tooth (11), movable teeth rack (12), heterogeneous shock wave cam (13) with the output shaft (14) of its key connecting, and the shaft axis of evagination internal gear (10), movable teeth rack (12), heterogeneous shock wave cam (13), output shaft (14) overlaps, and supported by rack bearing, movable teeth rack (12) connects firmly the wave number Z of evagination internal gear (10) with frame
10Count Z with oscillating tooth
11Differ is 3, heterogeneous shock wave cam (13) and output shaft (14) key connecting, oscillating tooth (11) and evagination internal gear (10), heterogeneous shock wave cam (13) the formation higher pair that is meshed respectively, oscillating tooth (11) can move in the radially guide groove of movable teeth rack (12), and oscillating tooth (11) forms sliding pair with movable teeth rack (12).
3. according to claim 1, the portable high rotating speed internal-combustion engine of 2 described any tooth differences, it is characterized in that: the outside of above-mentioned evagination internal gear (10) is to have four four phase cams that are mutually the projection of 90 ° of angles and axle center symmetry, inside is the tooth profile of inner gear face in the heterogeneous cammingly movable teeth drive, so evagination internal gear (10) is the cam in the cam mechanism, be again the internal gear in the heterogeneous cammingly movable teeth drive mechanism, whole heterogeneous cammingly movable teeth drive mechanism is embedded in the inside of evagination internal gear (10); Heterogeneous external cam (13) is to have three three-phase cams that are mutually the projection of 120 ° of angles and axle center symmetry, the sole mass complete equilibrium, and its profilogram is cosine curve.
4. according to claim 1 to the portable high rotating speed internal-combustion engine of 3 described any tooth differences, it is characterized in that: the rotating speed of output shaft depends on the rotating speed of evagination internal gear and the velocity ratio of heterogeneous cammingly movable teeth drive, and suitably select heterogeneous cammingly movable teeth drive join the tooth scheme, less velocity ratio can be obtained, at a high speed output can be realized.
5. according to claim 1 to the portable high rotating speed internal-combustion engine of 4 described any tooth differences, it is characterized in that: above-mentioned internal-combustion engine, its eight cylinders (4) circular symmetric be distributed on evagination internal gear (10) around, wherein any two 180 ° of cylinder pistons that are arranged symmetrically with (7) working staties of being separated by are synchronous, two cylinder pistons that working state is synchronous are as one group, four groups of cylinder pistons carry out suction stroke successively, compression stroke, gaseous combustion expansion stroke and exhaust stroke, the stroke of piston process of two adjacent groups cylinder is 45 ° corresponding to the phase difference of evagination internal gear (10) corner; Cylinder piston (7) directly acts on the evagination internal gear (10) by push rod (6), promote evagination internal gear (10) rotation, it is mobile in the radially guide groove of movable teeth rack (12) that the toothed surface of evagination internal gear (10) promotes oscillating tooth (11), and movable teeth rack (12) is fixedly connected with frame, so oscillating tooth forces heterogeneous shock wave cam (13) high speed rotating under the effect of contraction of movable teeth rack, heterogeneous shock wave cam (13) is exported transmission of power by key connecting to output shaft (14), realize at a high speed output.
6. according to claim 1 to the portable high rotating speed internal-combustion engine of 5 described any tooth differences, it is characterized in that: in the heterogeneous cammingly movable teeth drive, evagination internal gear and oscillating tooth are multiple tooth engagement, so can realize relatively high power, steadily transmission.
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Cited By (2)
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| CN103089428A (en) * | 2013-01-29 | 2013-05-08 | 四川大学 | Exterior convex interior random tooth difference cam sleeve transmission internal-combustion engine |
| CN105673201A (en) * | 2016-01-26 | 2016-06-15 | 四川大学 | Two-phase outwards-convex wheel shock-wave roller pin and roller block transmission internal combustion engine |
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| CN103061877A (en) * | 2013-01-06 | 2013-04-24 | 四川大学 | Rolling type high-rotation-speed internal combustion engine with arbitrary tooth difference numbers |
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| CN102979619A (en) * | 2012-12-03 | 2013-03-20 | 四川大学 | Arbitrary-tooth difference rolling transmission internal combustion engine |
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| CN103089428A (en) * | 2013-01-29 | 2013-05-08 | 四川大学 | Exterior convex interior random tooth difference cam sleeve transmission internal-combustion engine |
| CN105673201A (en) * | 2016-01-26 | 2016-06-15 | 四川大学 | Two-phase outwards-convex wheel shock-wave roller pin and roller block transmission internal combustion engine |
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