CN101994808B - Rigid vectorial resultant of secondary harmonic change and variable track continuously variable transmission - Google Patents
Rigid vectorial resultant of secondary harmonic change and variable track continuously variable transmission Download PDFInfo
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Abstract
The invention belongs to the mechanical transmission field, and relates to a vectorial resultant of secondary harmonic change and variable track continuously variable transmission (R-CVT) in the mechanical transmission field. Aiming at the problems of the existing CVT such as failure in greater torque transmission, larger power loss and the like, the invention provides a novel CVT which adopts a brand-new principle of 'uniform rotation-secondary harmonic rotation-uniform rotation' and realizes non-friction rigid transmission. The novel CVT integrates the advantages of high transmission efficiency of a gear stepped transmission and continuously variable speed of the CVT. The R-CVT can meet the requirement for mechanical transmission on continuous change of speed and torque so that a prime motor and load are always kept in an optimum matching state, avoid energy waste, reduce exhaust emission and integrate double functions of energy conservation and environmental protection; and meanwhile the R-CVT has the advantages of large power transmission (the maximum transmission torque can reach thousands of newtons/meter) and low energy consumption.
Description
Technical field
The invention belongs to mechanical transmission fields, relate to the conversion of a kind of secondary simple harmonic quantity of mechanical transmission fields velocity vector and variable girth rail mounted stepless speed variator.
Background technique
Gear in the existing machinery field is divided into two types, and a class is step change mechanism, and another kind of is stepless speed changing mechanism.Specifically have following several: gear gear formula speed changer, hydraulic automatic speed variator, friction type stepless speed changer.Gear gear formula wheel-speed regulating change box is formed some fixing gear ratio with different gear collocation, can't satisfy internal-combustion engine (or prime mover of other kind) rotating speed and the load coupling between the variation continuously fully, the rotating speed that has only gear shift constantly or change internal-combustion engine (or prime mover of other kind) adapts to the variation of load, the result makes internal-combustion engine (or prime mover of other kind) break away from optimum working zone, power descends, energy consumption rises, and polluting increases.Hydraulic automatic speed variator, for example the automatic transmission of using on present most of senior vehicle mainly utilizes torque converter to cooperate the differential gear train gear-box to realize the gearshift function.In the transmission process, the liquid in the torque converter can cause tangible heating and power loss.So transmission efficiency low (general about 80%), oil consumption height are the unsurmountable shortcomings of hydraulic automatic gearbox.Friction type stepless speed changer is because be transmission and the conversion of carrying out power by friction, can produce bigger power loss and the wearing and tearing of component, because its transmission of power is to rely on tribology principle to realize, thereby, can't realize high-power, high efficiency transmission, the Max. torque that can transmit at present is less than 360 Nms.
Summary of the invention
At can't transmitting of existing of existing stepless speed variator than problems such as high pulling torque and self power loss are bigger, the object of the present invention is to provide a kind of stepless speed variator that adopts brand-new " uniform rotation-secondary simple harmonic quantity rotation-uniform rotation " principle to realize, is a kind of novel stepless speed variator of positive drive of non-friction.This novel stepless speed variator has the advantage that the high transmission efficiency of gear formula step change transmission and stepless speed variator can the continuous stepless speed changes concurrently.It can satisfy mechanical transmission to speed and the requirement of moment of torsion continually varying, makes prime mover and load be in best matching state all the time, has avoided the waste of energy again, has reduced toxic emission, has energy-conservation and dual functions environmental protection.Simultaneously, because having, this stepless speed variator transmits high-power (maximum can reach several thousand Nms), the low advantage of power consumption, be particularly suitable for some fields that existing stepless speed variator can't be used, as: wind-driven generator, heavy truck, boats and ships, internal combustion locomotive, mining machinery etc.
Technological scheme
Technological scheme of the present invention is: a kind of rigidity secondary simple harmonic quantity velocity vector conversion and variable girth rail mounted stepless speed variator (Rigid Vectorial Resultant Of Secondary Harmonic Change AndVariable Track Continuouslv Variable Transmission is called for short R-CVT), it is a kind of non-friction positive drive stepless speed variator that adopts brand-new " uniform rotation-secondary simple harmonic quantity rotation-uniform rotation " principle to realize, mainly comprise " uniform rotation-secondary simple harmonic quantity rotates " switching mechanism of being formed by closed chain and fixed circumference regular polygon track (among the present invention be example with the square), variable-length rotating lever mechanism, " rotation-uniform rotation of secondary simple harmonic quantity " switching mechanism of being formed by non-closed chain and the limit number variable girth regular polygon track identical with fixed circumference regular polygon track limit number, track synchronous shifter and control system thereof, speed output mechanism and housing are formed, this speed changer adopts following transmission principle to realize the positive drive of non-friction: at first, and by the uniform rotation angular velocity omega of " uniform rotation-secondary simple harmonic quantity rotates " switching mechanism with prime mover input
0Convert secondary simple harmonic quantity rotational angular velocity to, that is: from the angular velocity omega of prime mover
0By sprocket wheel (2) input, sprocket wheel (2) drives the closed chain (3) of motion in fixed circumference regular polygon track (4), and closed chain (3) drives coupled variable-length rotating lever (6) and rotates around its rotating shaft (7), and producing an angular velocity is ω
1=(R
1* ω
0/ h
1) * cos
2θ
1Output, wherein: θ
1For the longitudinal center line of variable-length rotating lever (6) and regular polygon track (4) center to the angle between the vertical line of polygonal track straightway, h
1Be the track center of closed chain (3) perpendicular distance to regular polygon track (4) center, R
1It is the Pitch radius of sprocket wheel (2); Then, by variable-length rotating lever mechanism (6), (7), (8), the secondary simple harmonic quantity that " uniform rotation-secondary simple harmonic quantity rotates " switching mechanism is produced rotates ω
1Be input to " rotation-uniform rotation of secondary simple harmonic quantity " switching mechanism, convert one and prime mover input angular velocity ω to through " rotation-uniform rotation of secondary simple harmonic quantity " switching mechanism
0Linear uniform rotation angular velocity, that is: variable-length rotating lever (8) drives the not closed chain (10) of coupled motion in variable girth regular polygon track (11), closed chain (10) driving sprocket wheel (9) not, obtaining an angular velocity from the wheel shaft of sprocket wheel (9) is ω=((R
1* h
2)/(R
2* h
1)) * ω
0, this is one and prime mover input angular velocity ω
0Linear uniform rotation angular velocity, wherein: h
2Be the track center of closed chain (10) the not perpendicular distance to polygonal track (11) center, R
2Radius for secondary sprocket wheel (9), this angular velocity omega is connect and driving driving gearshaft (27) by overrunning clutch (26) and driving gearshaft (27) by secondary sprocket shaft (25), driving gearshaft (27) and driving gear (19) are by key joint and drive driving gear (19), driving gear (19) is meshed with spline gear (18), spline gear (18) is by the spline on the drive splines axle (17) and its connection and drive drive splines axle (17), drive splines axle (17) is by key joint and drive the splined shaft driving gear (22) that is positioned at axle head, splined shaft driving gear (22) and output gear (23) engagement, output gear (23) connects by key and output shaft (28) and driving output shaft (28) outputs power, when carrying out speed change, under motivational drive, by rotating interlock spiral shell (16), the track synchronous shifter can move in or out at the screw rod of arranging along polygonal diagonal (16), the track synchronous shifter moves in or out at the screw rod of arranging along polygonal diagonal (16), linearly, change the girth of variable girth regular polygon track (11) continuously, make the track center of closed chain (10) not to the perpendicular distance h at variable-length regular polygon track (11) center
2Take place linearly, change continuously, thereby the angular velocity omega of " simple harmonic quantity rotations-uniform rotation " transformation mechanism output is also taken place linearly, change continuously, and by output shaft (28) output, with the realization stepless change.
" uniform rotation-simple harmonic quantity rotate " transformation mechanism be one uniform rotation (angular velocity is ω
0) change into the mechanism that the secondary simple harmonic quantity rotates, mainly by one-level sprocket wheel (2), supporting wheel (24), Yun Dong closed chain (3) in orbit, one arm (6) of the regular polygon track (4) that chain supporting wheel (33) and girth of being made up of inside and outside regular polygon (among the present invention be example with the square) framework are fixing and the variable-length rotating lever that links to each other with chain (3) by chain hinge pin (5) is formed, one arm (6) of variable-length rotating lever is by the rotating shaft (7) of variable-length rotating lever and another arm (8) fixed connection of variable-length rotating lever, and its speed outputs to another arm (8) of variable-length rotating lever by the rotating shaft (7) of variable-length rotating lever.Corner between the adjacent two track straightways of regular polygon framework is excessive with circular arc-straight short-term-circular arc.
The changeable length rotating lever is made up of two arms (6) and (8) and rotating shaft (7), the structure of two arms is identical, its phase place also is identical, its root and its rotating shaft (7) fixed connection, the axial direction of two arm upper edge rotating shafts (7) has groove, can be slided in groove in chain hinge pin (5) and (36), and link to each other with chain (10) with chain (3) with (36) by chain hinge pin (5).
" simple harmonic quantity rotation-uniform rotation " transformation mechanism, be one the secondary simple harmonic quantity changed into the mechanism of uniform rotation that mainly the other end (8) of the variable-length rotating lever that links to each other with chain (10) by the not closed chain (10) of secondary sprocket wheel (9), motion in orbit, chain supporting wheel (35), variable girth regular polygon track (11) and by chain hinge pin (36) is formed.Variable girth polygonal track (11) is equated by the trapped orbit limit number in limit number and " uniform rotation-simple harmonic quantity rotates " transformation mechanism, form along inside and outside split framework regular polygon movable rail (12) and (13) that the regular polygon diagonal form distributes, each movable rail is by being adjacent the inner orbit (12) that movable rail becomes lenticular combination, outside track (13) is formed, and with track gear tank shell (14) fixed connection, these movable rail have been formed regular polygon track (11) space of a variable girth jointly, move in its track to retrain non-closed chain (10), by rotating interlock screw rod (16), all track synchronous shifters can move in or out at the screw rod of arranging along the regular polygon diagonal (16), linearly, change the girth of variable girth regular polygon track (11) continuously.Corner between the adjacent two track straightways of regular polygon (among the present invention be example with the square) framework is excessive with circular arc-straight short-term-circular arc.
Track synchronous shifter and control system thereof mainly by: track gear tank shell (14), adjust screw rod (16), drive splines axle (17), spline gear (18), driving gear (19), driving gearshaft (27), overrunning clutch (26), secondary sprocket shaft (25), secondary sprocket wheel (9), screw rod and adjust driving gear (20), screw rod linkage gear (21), splined shaft driving gear (22), output gear (23), output gear shaft (24) and form.An end of the adjustment screw rod (16) of a movable rail therein, adjust gear (15) by one of key joint, the adjustment screw rod (16) of other several (the present invention is three) movable rail is not adjusted gear (15), because adjusting screw rod links by the screw rod linkage gear, in addition, other structure is identical.
In each movable rail, the delivery type of power is finished like this: inner orbit (12), outside track (13) is formed variable girth regular polygon track (11) with track gear tank shell (14) fixed connection, power is delivered to not closed chain (10) by the other end (8) of variable-length rotating lever, closed chain (10) is not supported on motion in the variable girth regular polygon track (11) by chain supporting wheel (35), transmission of power is arrived on the secondary sprocket wheel (9), secondary sprocket wheel (9) passes through key joint with secondary sprocket shaft (25), driving secondary sprocket shaft (25) rotates, secondary sprocket shaft (25) connects and driving driving gearshaft (27) by overrunning clutch (26) and driving gearshaft (27), driving gearshaft (27) and driving gear (19) are by key joint and drive driving gear (19), driving gear (19) is meshed with spline gear (18), spline gear (18) is by the spline on the drive splines axle (17) and its connection and drive drive splines axle (17), drive splines axle (17) is by key joint and drive the splined shaft driving gear (22) that is positioned at axle head, splined shaft driving gear (22) and output gear (23) engagement, output gear (23) connects by key and output shaft (28) and driving output shaft (28) outputs power.Adjust gear (15) and pass through key joint with adjustment screw rod (16), adjusting screw rod (16) connects by the screw on the track gear tank shell (14) and track gear tank shell (14), an end of adjusting screw rod (16) connects by key and screw rod adjustment driving gear (20) and drive screw adjustment driving gear (20), and screw rod is adjusted driving gear (20) and is meshed with adjustment linkage gear (21).By screw rod (16) is adjusted in the servo power of control system (electric power or fluid power) driving adjustment gear (15) and rotation manually or automatically, can make the girth of variable girth regular polygon track (11) that continuous change takes place, when adjusting screw rod (16) when turning clockwise, track gear tank shell (14) track center dorsad moves, the girth of variable girth regular polygon track (11) increases, otherwise, reduce.Each length of variable girth regular polygon track (11), corresponding the output of a speed.Because the variation of track length is continuous, thus by changing the length of variable girth polygonal track (11) continuously, final, obtain a stepless change linearity, continuous from output shaft (28).
Be linked with variable rotational inertia flywheel (29) at output shaft (28).
Description of drawings
Fig. 1 is structure letter schematic representation of the present invention;
Fig. 2 is the structural representation of " uniform rotation-simple harmonic quantity rotates " switching mechanism;
Fig. 3 is the structural representation of variable-length rotating lever mechanism;
Fig. 4 is the structural representation of " simple harmonic quantity rotation-uniform rotation " switching mechanism;
Fig. 5 forms inside and outside minute track body of variable girth regular polygon track (be example with the square) and the structural representation of track synchronous shifter and control system thereof;
Fig. 6 is the motion analysis sketch of " uniform rotation-simple harmonic quantity rotates " switching mechanism;
Fig. 7 is the motion analysis sketch of " simple harmonic quantity rotation-uniform rotation " switching mechanism;
Fig. 8 is the assembling schematic representation of a R-CVT;
Fig. 9 is the R-CVT embodiment's of a square track External view;
Figure 10 then is the plan view of the regular hexagon track of a fixed circumference.
Below in conjunction with accompanying drawing transmission principle of the present invention is described further:
In " uniform rotation-simple harmonic motion " transformation mechanism, the speed omega of prime mover (prime mover of internal-combustion engine or other kind) output
0Come chain wheel shaft (1) as power input, make sprocket wheel (2) with angular velocity omega
0Rotate, sprocket wheel (2) is meshed with chain (3), chain (3) moves in a regular polygon (the present invention is example with the quadrilateral) track (4), chain joins end to end to closed, a chain link on the chain, be connected with a variable-length rotating lever (6) by its bearing pin (5), one end of the rotating shaft of variable-length rotating lever (7) is connected with variable-length rotating lever (6), the other end is connected with variable-length rotating lever (8), the center of the axis of rotating shaft (7) and polygonal track (4) is on same axis, the plane parallel at the rotational plane of rotating shaft (7) and polygonal track (4) place, the track center of chain (3) is h to the perpendicular distance at polygonal track (4) center
1, when the point that is connected with variable-length rotating lever (6) when the bearing pin (5) on the chain (3) moved to the A point, the longitudinal center line of variable-length rotating lever (6) and polygonal track (4) center were θ to the angle between the vertical line of polygonal track straightway
1, the length of variable-length rotating lever this moment (6) is l
1=h
1/ cos θ
1, the A point is V along the speed (being the speed of chain) of polygonal track (4)
1=R
1* ω
0, wherein, R
1Be the Pitch radius of sprocket wheel (2), the angular velocity of variable-length rotating lever this moment (6) is:
ω
1=V
τ/ l
1, and: V
τ=V
1* cos θ
1=R
1* ω
0* cos θ
1So:
ω
1＝(R
1×ω
0×cosθ
1)/(h
1/cosθ
1)
＝(R
1×ω
0/h
1)×cos
2θ
1
This rotating speed is delivered to the variable-length rotating lever (8) of the other end by the rotating shaft (7) of variable-length rotating lever (6), therefore, and the rotational speed omega of variable-length rotating lever (8)
2For:
ω
2＝ω
1＝(R
1×ω
0/h
1)×cos
2θ
1
Variable-length rotating lever (8) links by the not closed chain (10) that moves in variable-length polygonal track (11) in bearing pin (36) and the second level simple harmonic quantity rotation-uniform rotation transformation mechanism.The tie-point (36) of variable-length rotating lever (8) and closed chain (10) not is during along each straight section motion of variable-length polygonal track (11), and ω just will rotatablely move
2Be converted into not closed chain (10) along the straight line motion V of variable-length polygonal track (11)
2When the point (5) that variable girth regular polygon track 11 is connected with variable-length rotating lever (6) when the bearing pin (5) on the chain (3) moves to the A point, the point (36) that is connected with variable-length rotating lever (8) of the bearing pin (36) on the closed chain (10) does not move to corresponding A point, and the center of the longitudinal center line of variable-length rotating lever (8) and variable-length polygonal track (11) is θ to the angle between the vertical line of polygonal track straightway
2:
V
2＝V
τ2/cosθ
2
V
τ2＝ω
2×l
2＝(R
2×ω
0/h
2)×cos
2θ
2×l
2
l
2Be the length of variable-length rotating lever (8) in this position:
l
2＝h
2/cosθ
2
h
2Be the track center of closed chain (10) the not perpendicular distance to polygonal track (11) center.
Because variable-length rotating lever (6) is rigidly connected by rotating shaft (7) with variable-length rotating lever (8), the longitudinal center line of the two is in same phase place all the time, therefore: θ
2=θ
1So, have:
V
τ2＝ω
2×l
2＝(R
1×ω
0/h
1)×cos
2θ
1×l
2
＝(R
1×ω
0/h
1)×cos
2θ
1×h
2/cosθ
2
＝(R
1×ω
0×h
2/h
1)×cosθ
1
So:
V
2＝V
τ2/cosθ
2
＝(R
1×ω
0×h
2/h
1)×cosθ
1/cosθ
2
＝(R
1×ω
0×h
2/h
1)
So the angular velocity omega of the secondary sprocket wheel (9) that is meshed with closed chain (10) not is:
ω=V
2/ R
2, R wherein
2Be the radius of secondary sprocket wheel (9), so have:
ω＝V
2/R
2
＝(R
1×ω
0×h
2/h
1)/R
2
＝((R
1×h
2)/(R
2×h
1))×ω
0
As can be seen from the above equation: by the angular velocity omega of the output of the secondary sprocket shaft (25) in " simple harmonic quantity rotation-uniform rotation " transformation mechanism and the speed omega of prime mover output
0Linear, the two is directly proportional, and scaling factor is (R
1* h
2)/(R
2* h
1), drive by the servo power of control system (electric power or fluid power) manually or automatically and to adjust gear (15) and rotate and adjust screw rod (16), the girth of variable-length polygonal track (11) is taken place linearly, change continuously, in fact just make h
2Take place linearly, change continuously, thereby the angular velocity omega of secondary sprocket shaft (25) output is also taken place linearly, change continuously, this has just realized stepless change.
Embodiment
The non-friction positive drive stepless speed variator (R-CVT) that brand-new " uniform rotation-secondary simple harmonic quantity rotation-uniform rotation " principle of this employing realizes, can be according to the occasion difference of using, select the regular polygon track of different edge number, Fig. 9 is the R-CVT embodiment's of a square track External view, Figure 10 then is the plan view of the regular hexagon track of a fixed circumference, although difference is counted on the limit of track, their transmission principle and working procedure all are identical as mentioned above.
Claims (9)
1. a rigidity secondary simple harmonic quantity velocity vector is changed and variable girth rail mounted stepless speed variator (Rigid Vectorial Resultant Of Secondary Harmonic Change And VariableTrack Continuouslv Variable Transmission is called for short R-CVT), it is characterized in that: a kind ofly adopt brand-new " uniform rotation-secondary simple harmonic quantity rotation-uniform rotation " transmission principle to realize the stepless speed variator of non-friction positive drive, mainly comprise " uniform rotation-secondary simple harmonic quantity rotates " switching mechanism of being formed by closed chain and fixed circumference regular polygon track, variable-length rotating lever mechanism, " rotation-uniform rotation of secondary simple harmonic quantity " switching mechanism of being formed by non-closed chain and the limit number variable girth regular polygon track identical with fixed circumference regular polygon track limit number, track synchronous shifter and control system thereof, speed output mechanism and housing are formed, this speed changer adopts following transmission principle to realize the positive drive of non-friction: at first, rotate switching mechanism with the uniform rotation angular velocity omega of prime mover input by uniform rotation-secondary simple harmonic quantity
0Convert secondary simple harmonic quantity rotational angular velocity to, that is: from the angular velocity omega of prime mover
0By sprocket wheel (2) input, sprocket wheel (2) drives the closed chain (3) of motion in fixed circumference regular polygon track (4), and closed chain (3) drives coupled variable-length rotating lever (6) and rotates around its rotating shaft 7, and producing an angular velocity is ω
1=(R
1* ω
0/ h
1) * cos
2θ
1Output, wherein: θ
1For the longitudinal center line of variable-length rotating lever (6) and regular polygon track (4) center to the angle between the vertical line of polygonal track straightway, h
1Be the track center of closed chain (3) perpendicular distance to regular polygon track (4) center, R
1It is the Pitch radius of sprocket wheel (2); Then, by variable-length rotating lever mechanism (6), (7), (8), the secondary simple harmonic quantity that " uniform rotation-secondary simple harmonic quantity rotates " switching mechanism is produced rotates ω
1Be input to " rotation-uniform rotation of secondary simple harmonic quantity " switching mechanism, convert one and prime mover input angular velocity ω to through " rotation-uniform rotation of secondary simple harmonic quantity " switching mechanism
0Linear uniform rotation angular velocity, that is: variable-length rotating lever (8) drives the not closed chain (10) of coupled motion in variable girth regular polygon track (11), closed chain (10) driving sprocket wheel (9) not, obtaining an angular velocity from the wheel shaft (25) of sprocket wheel (9) is ω=((R
1* h
2)/(R
2* h
1)) * ω
0, this is one and prime mover input angular velocity ω
0Linear uniform rotation angular velocity, wherein: h
2Be the track center of closed chain (10) the not perpendicular distance to polygonal track (11) center, R
2Radius for secondary sprocket wheel (9), this angular velocity omega connects and driving driving gearshaft (27) by overrunning clutch (26) and driving gearshaft (27) by secondary sprocket shaft (25), driving gearshaft (27) and driving gear (19) are by key joint and drive driving gear (19), driving gear (19) is meshed with spline gear (18), spline gear (18) is by the spline on the drive splines axle (17) and its connection and drive drive splines axle (17), drive splines axle (17) is by key joint and drive the splined shaft driving gear (22) that is positioned at axle head, splined shaft driving gear (22) and output gear (23) engagement, output gear (23) connects by key and output shaft (28) and driving output shaft (28) outputs power, when carrying out speed change, under motivational drive, by rotating interlock screw rod (16), the track synchronous shifter can move in or out at the screw rod of arranging along polygonal diagonal (16), linearly, change the girth of variable girth regular polygon track (11) continuously, make the track center of closed chain (10) not to the perpendicular distance h at variable-length regular polygon track (11) center
2Take place linearly, change continuously, thereby the angular velocity omega of " simple harmonic quantity rotations-uniform rotation " transformation mechanism output is also taken place linearly, change continuously, and by output shaft (28) output, with the realization stepless change.
2. according to the conversion of the described rigidity secondary of claim 1 simple harmonic quantity velocity vector and variable girth rail mounted stepless speed variator, it is characterized in that: it is angular velocity ω that " uniform rotation-simple harmonic quantity rotates " transformation mechanism is one
0Uniform rotation transform to be shaped as ω
1=(R
1* ω
0/ h
1) * cos
2θ
1The mechanism that rotates of secondary simple harmonic quantity, mainly an arm (6) of the regular polygon track of being fixed by the closed chain (3) of one-level sprocket wheel (2), supporting wheel (24), motion in orbit, chain supporting wheel (33) and girth of being made up of inside and outside regular polygon framework (4) and the variable-length rotating lever that links to each other with chain (3) by chain hinge pin (5) is formed.
3. according to the conversion of the described rigidity secondary of claim 1 simple harmonic quantity velocity vector and variable girth rail mounted stepless speed variator, it is characterized in that: the variable-length rotating lever mainly is made up of the first arm (6) and second arm (8) and rotating shaft (7), the structure of two arms is identical, its phase place also is identical, its root and its rotating shaft (7) fixed connection, the axial direction of two arm upper edge rotating shafts 7 has groove, first chain hinge pin (5) and second chain hinge pin (36) can be slided in groove, and link to each other with second chain (10) with first chain (3) with second chain hinge pin (36) by first chain hinge pin (5).
4. according to the described rigidity secondary of claim 1 simple harmonic quantity velocity vector conversion and variable girth rail mounted stepless speed variator, it is characterized in that: " simple harmonic quantity rotation-uniform rotation " transformation mechanism be one shape such as ω
1=(R
1* ω
0/ h
1) * cos
2θ
1The secondary simple harmonic quantity rotate to transform be shaped as ω=((R
1* h
2)/(R
2* h
1)) * ω
0The mechanism of uniform rotation, mainly by secondary sprocket wheel (9), the other end (8) of not closed chain (10), chain supporting wheel (35), the limit number of motion are identical with the limit number of fixed circumference regular polygon track in orbit variable girth regular polygon track (11) and the variable-length rotating lever that links to each other with closed chain (10) not by chain hinge pin (36) forms.
5. according to the conversion of the described rigidity secondary of claim 1 simple harmonic quantity velocity vector and variable girth rail mounted stepless speed variator, it is characterized in that: variable girth polygonal track (11) is equated by the trapped orbit limit number in limit number and " uniform rotation-simple harmonic quantity rotates " transformation mechanism, in the inside and outside split framework regular polygon that the regular polygon diagonal form distributes movable rail (12) and outside movable rail (13) composition, and with track gear tank shell (14) fixed connection, these movable rail have been formed regular polygon track (11) space of a variable girth jointly, move in its track to retrain non-closed chain (10), by rotating interlock screw rod (16), all track synchronous shifters can move in or out at the screw rod of arranging along the regular polygon diagonal (16), linearly, change the girth of variable girth regular polygon track (11) continuously.
6. according to the described rigidity secondary of claim 1 simple harmonic quantity velocity vector conversion and variable girth rail mounted stepless speed variator, it is characterized in that: track synchronous shifter and control system thereof are mainly by track gear tank shell (14), adjust screw rod (16), drive splines axle (17), spline gear (18), driving gear (19), driving gearshaft (27), overrunning clutch (26), secondary sprocket shaft (25), secondary sprocket wheel (9), screw rod is adjusted driving gear (20), screw rod linkage gear (21), splined shaft driving gear (22), output gear (23), output gear shaft (24) is formed; An end of the adjustment screw rod (16) of a movable rail therein, adjust gear (15) by one of key joint, the adjustment screw rod (16) of other several movable rail is not adjusted gear (15), because adjusting screw rod links by the screw rod linkage gear, in addition, other structure is identical.
7. according to the conversion of the described rigidity secondary of claim 1 simple harmonic quantity velocity vector and variable girth rail mounted stepless speed variator, it is characterized in that: non-closed chain (10) is one section chain, head and the tail are not closed, its outer plate outer side center has bearing pin, be with supporting wheel (35) on the bearing pin, move in variable girth regular polygon track to support it.
8. according to the conversion of the described rigidity secondary of claim 1 simple harmonic quantity velocity vector and variable girth rail mounted stepless speed variator, it is characterized in that: in each movable rail, the delivery type of power is finished like this: inner orbit (12), outside track (13) is formed variable girth regular polygon track (11) with track gear tank shell (14) fixed connection, power is delivered to not closed chain (10) by the other end (8) of variable-length rotating lever, closed chain (10) is not supported in motion in the variable girth regular polygon track (11) by chain supporting wheel (35), transmission of power is arrived on the secondary sprocket wheel (9), secondary sprocket wheel (9) passes through key joint with secondary sprocket shaft (25), driving secondary sprocket shaft (25) rotates, secondary sprocket shaft (25) connects and driving driving gearshaft (27) by overrunning clutch (26) and driving gearshaft (27), driving gearshaft (27) and driving gear (19) are by key joint and drive driving gear (19), driving gear (19) is meshed with spline gear (18), spline gear (18) is by the spline on the drive splines axle (17) and its connection and drive drive splines axle (17), drive splines axle (17) is by key joint and drive the splined shaft driving gear (22) that is positioned at axle head, splined shaft driving gear (22) and output gear (23) engagement, output gear (23) connects and driving output shaft (28) by key and output shaft (28); Adjust gear (15) and pass through key joint with adjustment screw rod (16), adjusting screw rod (16) connects by the screw on the track gear tank shell (14) and track gear tank shell (14), an end of adjusting screw rod (16) connects by key and screw rod adjustment driving gear (20) and drive screw adjustment driving gear (20), and screw rod is adjusted driving gear (20) and is meshed with adjustment linkage gear (21); Servo power by control system manually or automatically rotates adjusts screw rod (16), can make the girth of variable girth regular polygon track (11) that continuous change takes place, when adjusting screw rod (16) when turning clockwise, track gear tank shell (14) track center dorsad moves, the girth of variable girth regular polygon track (11) increases, otherwise, reduce; Each length of variable girth regular polygon track (11), corresponding the output of a speed; Because the variation of orbit circumference is continuous, so by changing the length of variable girth polygonal track (11) continuously, on output shaft (28), just can obtain continually varying speed.
9. according to the conversion of the described rigidity secondary of claim 1 simple harmonic quantity velocity vector and variable girth rail mounted stepless speed variator, it is characterized in that: be linked with variable rotational inertia flywheel (29) at output shaft (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910165246 CN101994808B (en) | 2009-08-08 | 2009-08-08 | Rigid vectorial resultant of secondary harmonic change and variable track continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910165246 CN101994808B (en) | 2009-08-08 | 2009-08-08 | Rigid vectorial resultant of secondary harmonic change and variable track continuously variable transmission |
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| Publication Number | Publication Date |
|---|---|
| CN101994808A CN101994808A (en) | 2011-03-30 |
| CN101994808B true CN101994808B (en) | 2013-08-14 |
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| CN 200910165246 Expired - Fee Related CN101994808B (en) | 2009-08-08 | 2009-08-08 | Rigid vectorial resultant of secondary harmonic change and variable track continuously variable transmission |
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| Country | Link |
|---|---|
| CN (1) | CN101994808B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836040A (en) * | 1982-12-13 | 1989-06-06 | Brems John Henry | Differential rotary-to-rotary cam system to achieve long dwell periods with continuous rotary input |
| CN2890505Y (en) * | 2005-12-26 | 2007-04-18 | 福州大学 | Pulse type stepless transmission with low pulse degree |
-
2009
- 2009-08-08 CN CN 200910165246 patent/CN101994808B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836040A (en) * | 1982-12-13 | 1989-06-06 | Brems John Henry | Differential rotary-to-rotary cam system to achieve long dwell periods with continuous rotary input |
| CN2890505Y (en) * | 2005-12-26 | 2007-04-18 | 福州大学 | Pulse type stepless transmission with low pulse degree |
Non-Patent Citations (1)
| Title |
|---|
| JP昭60-143263A 1985.07.29 |
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| Publication number | Publication date |
|---|---|
| CN101994808A (en) | 2011-03-30 |
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