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---the portable high rotating speed internal-combustion engine of two-phase shock wave.
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 two-phase shock wave 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 ring gear (10), oscillating tooth (11), movable teeth rack (12), two-phase shock wave device (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 ring gear (10) around, two-phase shock wave 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 ring gear (10) by push rod (6), promote evagination ring gear (10) rotation, the inside toothed surface of evagination ring gear promotes oscillating tooth (11) motion, oscillating tooth under the movable teeth rack effect of contraction along movable teeth rack radially guide groove reciprocatingly move and move, force oscillating tooth (11) and two-phase shock wave device (13) engagement, drive two-phase shock wave device (13) and rotate, and by with output shaft (14) outputting power of two-phase shock wave device (13) key connecting.
In technique scheme, two-phase shock wave movement and transmission mechanism is formed by cam mechanism and two-phase shock wave movable teeth drive Mechanism Combination in the evagination.Wherein, cam mechanism is by cylinder body (5), spring (8), push rod (6), evagination ring 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 ring 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 ring gear (10), each cylinder is furnished with piston, push rod and spring with roller.
Two-phase shock wave movable teeth drive mechanism is by evagination ring gear (10), oscillating tooth (11), movable teeth rack (12), two-phase shock wave device (13) and form with the output shaft (14) of its key connecting, the outer surface of evagination ring gear (10) is four phase cam profiles, inside is the ring gear toothed surface, so evagination ring gear (10) is the cam in the cam mechanism, it is again the ring gear in the two-phase shock wave movable teeth drive mechanism, evagination ring gear (10) organically unites two into one internal-combustion engine and two-phase shock wave movable teeth drive, and whole two-phase shock wave movable teeth drive mechanism is built in the inside of evagination ring gear (10).Two-phase shock wave device (13) self shape is 180 ° of Central Symmetries, the sole mass complete equilibrium, and its profilogram is the standard ellipse curve, or is the two-phase cosine curve, or is two eccentric arc curves.
The outer surface cam profile curve of evagination ring 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 ring gear (10), movable teeth rack (12) and two-phase shock wave device (13) overlaps and is supported by rack bearing.Oscillating tooth is counted Z
11Wave number Z with the evagination ring gear
10Differ is 2, movable teeth rack (12) connects firmly with frame, two-phase shock wave device (13) and output shaft (14) key connecting, oscillating tooth (11) is meshed respectively with evagination ring gear (10), two-phase shock wave device (13) and all forms higher pair, and oscillating tooth (11) forms sliding pair with movable teeth rack (12).
In technique scheme, the outside of evagination ring gear (10) is to have four four phase cams that are mutually 90 ° of angle projections, eight cylinders (4) circular symmetric be distributed on the evagination ring gear 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 ring gear (10) corner.
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 ring gear, and cylinder piston directly acts on the evagination ring gear by push rod, and power is passed to output shaft output by the evagination ring gear through two-phase shock wave movable teeth drive.
2. the outside of evagination ring gear is to have four four phase cams that are mutually 90 ° of angle projections, and inside is the structure of ring gear toothed surface, two-phase shock wave movable teeth drive mechanism is built in the cam of cam mechanism, cam in the cam mechanism and the ring gear in the two-phase shock wave movable teeth drive mechanism are united two into one, obtain two-phase shock wave 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 and the output shaft of two-phase shock wave device key connecting, and two-phase shock wave movable teeth drive is by evagination ring gear input power, and movable teeth rack is fixed, and the output of two-phase shock wave device can realize less velocity ratio, internal-combustion engine high speed outputting power.
4. the output shaft rotating speed depends on the velocity ratio of two-phase shock wave movable teeth drive, and suitably select two-phase shock wave movable teeth drive join the tooth scheme, can obtain less velocity ratio, and shock wave device is the two-phase shock wave device, oscillating tooth is counted Z
11Wave number Z with the evagination ring gear
10Differing is 2, does not need eccentric the installation, and whole mechanism is subjected to force self-balanced.
5. in the two-phase shock wave movable teeth drive, evagination ring 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 two-phase shock wave 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 ring gear and two-phase shock wave 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 ring 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 ring 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 ring gear, and two-phase shock wave movable teeth drive mechanism is built in the evagination ring gear, the evagination ring gear is the cam in the cam mechanism, again the ring gear in the two-phase shock wave 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 two-phase shock wave 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 with two-phase shock wave device key connecting, two-phase shock wave movable teeth drive is with evagination ring gear input power, movable teeth rack is fixed, the output of two-phase shock wave device, 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 ring gear by the push rod roller and passes to output shaft output by two-phase shock wave movable teeth drive.For rolling friction connects, transmission efficiency is high between piston push rod and the evagination ring gear, has cancelled serious wear, connecting rod that friction power loss is large.Two-phase shock wave 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.The two-phase shock wave device 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 ring 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
Two-phase shock wave 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.
Specific embodiment
Fig. 1, the portable high rotating speed internal-combustion engine of two-phase shock wave 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 ring gear (10), oscillating tooth (11), movable teeth rack (12), two-phase shock wave device (13), output shaft (14) etc.Eight cylinders (4) axle center symmetrically annular be distributed on evagination ring 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 ring 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 ring gear (10) all the time.The outside of evagination ring gear (10) is four phase cams with four projections that are mutually 90 ° of angles and axle center symmetry, and inside is the ring gear toothed surface.Evagination ring gear (10) is organically integrated cam mechanism and two-phase shock wave movable teeth drive mechanism.Evagination ring gear (10) is the cam in the cam mechanism, is again the ring gear in the two-phase shock wave movable teeth drive mechanism, and whole two-phase shock wave movable teeth drive mechanism is embedded in the inside of evagination ring gear (10).The profilogram of two-phase shock wave device (13) can be standard ellipse curve or two-phase cosine curve or two Eccentric Circular arc curve, so two-phase shock wave device (13) self shape is 180 ° of Central Symmetries, the sole mass complete equilibrium, the selection standard elliptic curve is the profilogram of two-phase shock wave device (13) in the present embodiment.Two-phase shock wave movable teeth drive mechanism forms by evagination ring gear (10), oscillating tooth (11), movable teeth rack (12), two-phase shock wave device (13) with the output shaft (14) of two-phase shock wave device (13) key connecting.Movable teeth rack (12) connects firmly with frame, oscillating tooth (11) and evagination ring gear (10), two-phase shock wave device (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 ring gear (10), movable teeth rack (12) and two-phase shock wave device (13) overlaps and is supported by rack bearing.Therefore internal-combustion engine of the present invention not only has the series of advantages of two-phase shock wave movable teeth drive, and structure is very compact.The outer surface cam profile curve of evagination ring 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 ring 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 ring gear (10) period of rotation.The pto=power take-off of present embodiment internal-combustion engine is the output shaft (14) with two-phase shock wave device key connecting, two-phase shock wave movable teeth drive is with evagination ring gear input power, and movable teeth rack is fixed, the output of two-phase shock wave device, 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 ring gear (10) by push rod (6) and roller (9), promote evagination ring gear (10) and be rotated counterclockwise, power is passed to output shaft (14) output by evagination ring gear (10) through two-phase shock wave movable teeth drive mechanism; Because the rotation of evagination ring 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 ring 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 ring gear (10) corner; Then evagination ring gear (10) turns over after 45 ° counterclockwise, cylinder b, the f acting that takes fire again, the evagination ring 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 ring 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 ring gear promotes oscillating tooth (11), under the effect of contraction of movable teeth rack (12), force oscillating tooth (11) and two-phase shock wave device (13) engagement, drive two-phase shock wave device (13) and rotate, and by with the output shaft (14) of two-phase shock wave device (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 ring gear (10) are: evagination ring gear (10) only is subjected to the effect of pure couple, and to make a concerted effort be zero.Because evagination ring gear (10) and two-phase shock wave 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=10, the wave number of evagination ring gear (10) is Z
10=12, the rotating speed of evagination ring gear (10) is n
10=400r/min, movable teeth rack (12) is fixedly connected with frame, so the angular velocity of movable teeth rack (12)
, then the velocity ratio of two-phase shock wave movable teeth drive is:
So: n
14=n
13=2400r/min, as seen two-phase shock wave device (13), output shaft (14) turns to identical with evagination ring gear (10), the rotating speed of output shaft (14) rises to six times of rotating speed of evagination ring gear (10), and 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.