CN201407328Y - Two torque continuously variable transmission - Google Patents
Two torque continuously variable transmission Download PDFInfo
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- CN201407328Y CN201407328Y CN2009200053662U CN200920005366U CN201407328Y CN 201407328 Y CN201407328 Y CN 201407328Y CN 2009200053662 U CN2009200053662 U CN 2009200053662U CN 200920005366 U CN200920005366 U CN 200920005366U CN 201407328 Y CN201407328 Y CN 201407328Y
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Abstract
The utility model relates to a two torque continuously variable transmission for mechanical transmission, which comprises a continuously variable unit and a two torque transmission unit, the continuously variable unit comprises a central input gear, a central output gear and a differential element arranged between the central input gear and the central output gear, the axes of the central input gear and the central output gear are coaxial, the continuously variable unit is a continuously automatic variable unit formed by a differential gear train, and the two torque transmission unit comprisesa driving gear, a driving shaft, a lever bent shaft, a universal transmission bearing carrier, a drag shaft, a stepless speed regulator and a driven gear. The two torque continuously variable transmission regulates the action radius ratio and rod ratio of the two torque transmission unit at the positive acceleration direction of the output end of the continuously variable unit to achieve the purpose of positive stepless speed change; compared with the prior continuously variable transmissions, the two torque continuously variable transmission has higher efficiency and can effectively save energy and manufacturing cost; and as a middle variable mechanism through which the torque of a power source does work outwards, the two torque continuously variable transmission can be widely applied tovarious machines.
Description
Technical field
The utility model relates to mechanically operated a kind of forward slepless transmission device.
Background technique
Friction stepless gearbox of the prior art, the same with other speed changer or retarder, when permanent power is imported, after the startup, in any time of quickening operation, can realize traveling at the uniform speed, between the wheel for inputting of friction stepless gearbox and the driven wheel owing to exist the moment of resistance of a pair of opposite sign but equal magnitude, moment of momentum equivalent between wheel for inputting and the driven wheel shifts, moment of resistance is corresponding mutually with output torque, constituted the friction stepless gearbox transmission condition, the motion of wheel for inputting and output wheel is to interact in the moment of resistance and the output torque moment of reaction, because the moment of reaction of output torque is combined into zero with relative moment of resistance angular impulse, makes that bonding force is zero, can realize traveling at the uniform speed; Friction stepless gearbox is a friction driving, and transmission efficiency is low.
Chinese patent notification number CN116259A, open day is on November 19th, 1997, the patent No. 97102702.1, name is called and discloses a kind of stepless automated mechanical transmission in the differential gear transmission system stepless speed variator, it can realize stepless and automatic speed changing with the size of load, its kinetic characteristic is under permanent energetic start up, by P=Md * ω d and β d=(Ma-M
f)/Jd, P are input power, and Md is that output torque ω d is the angular velocity of output wheel, and β d is the angular acceleration of output wheel, M
fBe resisting moment, Jd is the rotary inertia of output wheel, and because of power P remains unchanged, in the accelerating process of output wheel, ω d speed increases, and Md reduces, and therefore β d acceleration also reduces, and equals resisting moment M when output torque Md is reduced to
fThe time, i.e. Md=M
fIts acceleration β d=0, then angular velocity omega d reaches maximum value ω
mAnd ω
mAfter this=P/Md exports the crop rotation uniform motion; Its shortcoming is, in the acceleration process after the startup, can not travel at the uniform speed at any time, has only the moment of momentum increment of output wheel, can only arrive the peaked angular velocity omega of full power
mIn time, travel at the uniform speed, its reason is exactly, the moment of torsion of the stepless automated mechanical transmission output terminal of this kind is by the output torque after the reverse speedup, to input torque increase limited, can not with the Md balance in the accelerating process, can not reverse speed change, can only be in the unidirectional speed change of outbound course, different with friction stepless gearbox, corresponding a pair of moment of resistance mutually not between wheel for inputting and the output wheel; Differential gear transmission system stepless speed variator can only in actual applications, can not satisfy the needs demands that travel at the uniform speed at different levels in the accelerating process according to the big or small passive effect of load.
The model utility content
The purpose of this utility model is a kind of forward slepless transmission device, described forward slepless transmission device is made of stepless speed changes devices and two square transmission device, described stepless speed changes devices is made of the gear differential gear train, described pair of square transmission device is by driving wheel, live axle, the lever cambered axle, the universal drive shaft bearing, resistance shaft, stepless speed-regulating device, driven wheel constitutes, the lever cambered axle is by driving arm, jack shaft, resistance arm constitutes, the lever cambered axle is installed on the universal drive shaft bearing of fixedlying connected with the external world, the rotational axis of lever cambered axle is by the central point of universal drive shaft bearing, resistance arm is installed together by resistance shaft and driven wheel, driving arm is provided with live axle, the effect that live axle is assemblied in the driving arm is with, the center line of the effect band in the driving arm intersects with the coaxial line of driven wheel with driving wheel or is parallel, live axle is connected with stepless speed-regulating device by driving wheel, stepless speed-regulating device and live axle can driving arm axially on and driving wheel axially on axially move back and forth, driving wheel and the input shaft that is installed on the bearing support link together, and input shaft or the input transmission device of driven wheel by the input central gear imported central gear with stepless speed changes devices and linked together; In the described pair of square transmission device, the live axle that setting and driving arm and driving wheel are installed together is to the invariant position of universal drive shaft bearing central point, the resistance shaft that setting and resistance arm and driven wheel are installed together is to the invariant position of the central point of universal drive shaft bearing, and the forward slepless transmission device can become a kind of forward speed reducer; Described stepless speed changes devices can be differential gear transmission system stepless speed variator; With the setting of can connecting of described pair of square transmission device, perhaps described pair of square transmission device can be arranged in parallel; Described stepless speed changes devices can be arranged in parallel, and described pair of square transmission device linked together by input shaft or input transmission device and input central gear in the stepless speed changes devices that is arranged in parallel.
A kind of pair of square transmission device, by driving wheel, live axle, the lever cambered axle, the universal drive shaft bearing, resistance shaft, driven wheel constitutes, described lever cambered axle is by driving arm, jack shaft, resistance arm constitutes, perhaps, the lever cambered axle is made of jack shaft, on the universal drive shaft bearing, the jack shaft of lever cambered axle is installed on the bearing, Bearing Installation is pitched in universal on the center hole of ring, universal interior fork encircles radially, and two fork shafts at two ends are installed on two axis holes of universal internal support ring, universal outer fork encircles radially that two fork shafts at two ends are installed on two axis holes of universal internal support ring, universal in fork encircle radially the coaxial line of two fork shafts at two ends and encircle radially with universal outer fork that the coaxial line of two fork shafts at two ends intersects vertically mutually, the universal outer fork ring and the external world are fixedly connected, driven wheel links together with the output shaft that is installed on the bearing support, resistance arm is installed together by resistance shaft and driven wheel, and driving arm is installed together by live axle and driving wheel, and driving wheel links together with the input shaft that is installed on the bearing support, the rotational axis of lever cambered axle passes through the central point of universal drive shaft bearing, and overlaps with the coaxial line of driving wheel and driven wheel.
A kind of universal drive shaft bearing, by fork ring in universal, universal internal support ring, universal outer fork ring, rolling bearing constitutes, described universal interior fork encircles radially, and two ends are provided with two fork shafts, two fork shaft coaxial lines, the orthogonal radially two ends of described universal internal support ring respectively are provided with two axis holes, wherein the coaxial line in the coaxial line in two holes and two other hole intersects vertically mutually, its crosspoint is the central point of universal drive shaft bearing, fork encircles two fork shafts at two ends radially and is installed in universal internal support ring radially on two axis holes at two ends in universal, described universal outer fork encircles two fork shafts at two ends radially and is installed in universal internal support ring radially on two axis holes at two ends, the coaxial line of the coaxial line of two fork shafts of fork ring and two fork shafts of universal outer fork ring intersects vertically mutually in universal, and its crosspoint overlaps with the central point of universal drive shaft bearing, between above fork shaft and the axis hole bearing can be installed, on the center hole of fork ring bearing is installed in universal, universal outer fork ring is fixedly connected with the external world; Described a kind of universal drive shaft bearing can be a kind of bearing support that holds with expansion mandrel.
The utility model is than existing stepless speed variator or retarder, and efficient is higher, can effectively save the energy saving manufacture cost, middle gear as the outside acting of power source moment of torsion, can be widely used in the various mechanical devices, as automobile, and various mechanized equipments etc.
Description of drawings
Fig. 1 is the plan view of a kind of forward slepless transmission device of the present utility model.
Fig. 2 is that the A-A of the utility model Fig. 1 is to view.
Fig. 3 is that the B-B of the utility model Fig. 1 is to view.
Fig. 4 is an a kind of pair of square transmission device plan view of the present utility model.
Fig. 5 is the stressed schematic diagram of solid of the present utility model.
Fig. 6 is the kind of drive schematic representation of a kind of specific embodiment of the present utility model.
Fig. 7 is the kind of drive schematic representation of a kind of specific embodiment of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the concrete structures of the utility model forward slepless transmission device, and it is the forward slepless transmission device that is made of two square transmission devices 2 and differential gear transmission system stepless speed variator.Differential gear transmission system stepless speed variator is a kind of stepless speed changes devices 1 that is made of two groups of gear differential gear trains, and concrete structure is as follows:
The input shaft of input central gear 3 lower ends connection is the input shaft of stepless speed changes devices 1, and is connected with bearing 6, and bearing 6 is installed on the bearing support, input central gear 3 and planetary pinion 5 engagements, and planetary pinion 5 meshes with the internal gear 46 of bidentate circle 4; The center, upper end of input central gear 3 is provided with bearing 35, and bearing 35 is connected with rotatingshaft 29, and rotatingshaft 29 is connected with bearing 47, and bearing 47 is installed in the center, lower end of output center gear 44; The output shaft that is connected with output center gear 44 upper ends is the output shaft of this forward slepless transmission device, and is connected with bearing 36, and bearing 36 is connected with bearing support; Output center gear 44 and planetary pinion 33 engagements, planetary pinion 33 meshes with the internal gear 45 of bidentate circle 4; Rotatingshaft 29 is provided with pivoted arm 28, the left end of pivoted arm 28 is provided with stationary axle 48, the upper end of stationary axle 48 is connected with bearing 32, bearing 32 is installed on the planetary pinion 33, the right-hand member of pivoted arm 28 is provided with stationary axle 30, the lower end of stationary axle 30 is connected with bearing 31, and bearing 31 is installed on the planetary pinion 5; The center, upper end of bidentate circle 4 is connected with bearing 50, bearing 50 is installed on the output shaft of output center gear upper end, the lower end of bidentate circle 4 is connected with gland 34, and the center of gland 34 is connected with bearing 49, and bearing 49 is installed on the input central gear 3 lower end input shafts; The input shaft of input central gear 3 is coaxial with the output shaft of output center gear 44, pivoted arm 28 and input central gear 3, output center gear 44 and bidentate circle 4 relatively rotate, and bidentate circle 4 can rotate on the output shaft of the input shaft of importing central gear 3 and output center gear 44.
The stepless speed changes devices 1 that constitutes by two groups of gear differential gear trains, its kinetic characteristic is to import the motion of central gear 3 through Passive part planetary pinion 5 and pivoted arm 28, decomposition with Passive part internal gear 46, by bidentate circle 4 and pivoted arm 28, by driving link internal gear 45 and driving link pivoted arm 28, motion is synthesized on the output center gear 44 through planetary pinion 33, through the output shaft output of output center gear 44.Internal gear 45 passes through the moment of torsion of the input torque of 44 pairs of input shaft central gears 3 of output center gear in internal gear 46 increases, and speedup oppositely reduces again; Because the radius of internal gear 46 is greater than the radius of internal gear 45, input central gear 3 is through the moment of torsion of planetary pinion 5 with the tangential force formation of internal gear 46 engagements, by output center gear 44 and pivoted arm 28, in the tangential force of the tangential formation of internal gear 45 tangential force greater than internal gear 46 places, by design input central gear 3, planetary pinion 5, the radius parameter of planetary pinion 33 and output center gear 44, when pivoted arm 28 acts on the tangential force of the tangential force of planetary pinion 33 less than internal gear 45 places by stationary axle 48, when direction was opposite with it, the resultant motion of the output shaft of above output center gear 44 could be set up; This kind stepless speed changes devices 1 can only be in the unidirectional speed change transmission of output shaft direction, can not reverse speed change transmission; If at input torque of output terminal effect of this kind stepless speed changes devices 1, this input torque can big or small direction affact on the input end of this stepless speed changes devices 1 unchangeably, and this characteristic also is the characteristic that this forward slepless transmission device need utilize.
The formation of two square transmission devices 2 is, the lower end input shaft of driving wheel 25 is input shafts of this forward slepless transmission device, and is installed on the bearing 26, and bearing 26 is installed on the bearing support 27, corresponding with driving wheel is driven wheel 7, and driven wheel 7 is assemblied on the input shaft of input central gear 3 lower ends; Between driving wheel 25 and driven wheel 7, be provided with universal drive shaft bearing 37, with lever cambered axle 39, lever cambered axle 39 is installed on the universal drive shaft bearing 37 of fixedlying connected with the external world by jack shaft 10, the resistance arm axle 8 of lever cambered axle 39 is installed together by resistance shaft 9 and driven wheel 7, and lever cambered axle 39 links together by live axle 23 and driving wheel 25.
Universal drive shaft bearing 37 is by fork ring 12 in universal, universal internal support ring 13, universal outer fork ring 14, bearing gland 40, and bearing 11 constitutes, in universal fork ring 12 radially two ends be provided with 19, two fork shafts 19 of two fork shafts axis coaxle and with universal in the radial line of fork ring 12 overlaps, two fork shafts 19 with universal in fork encircle 12 and can become one or be assembled together mutually; Universal internal support ring 13 orthogonal radially two ends respectively are provided with the coaxial line of axis hole 16 and 42, two axis holes 16 and the coaxial line of two axis holes 42 intersects vertically mutually, and its crosspoint is the central point of universal drive shaft bearing 37; On the universal outer fork ring 14 radially inward at both ends be provided with the axis coaxle of 43, two fork shafts 43 of two fork shafts and overlap with the radial line of universal outer fork ring 14, two fork shafts 43 encircle 14 and are connected with universal outer pitching; Bearing 11 is installed on the center hole of universal interior fork ring 12, and is fixing by bearing gland 40; Two fork shafts 19 are installed on two axis holes 42, and two fork shafts 43 are installed on two axis holes 16, and universal outer fork ring 14 is fixedlyed connected with extraneous; In order to reduce friction and the raising transmission efficiency of wearing and tearing, between fork shaft 19 and axis hole 42, bearing 20 is installed, between fork shaft 43 and the axis hole 16 bearing 15 is installed; Fork ring 12 center holes are equipped with bearing 11 in universal, and fixedly connected by bearing gland 40; The coaxial line of the coaxial line of two fork shafts 19 and two fork shafts 43 intersects vertically mutually, its crosspoint overlaps with the central point of universal drive shaft bearing 37, also be the fulcrum of lever cambered axle 39, the coaxial line of driving wheel 25 and driven wheel 7 is by the central point of universal drive shaft bearing 37; Universal internal support ring 13 is a kind of ring of being made up of two semi-rings, and is fixedly connected by bolt 17; Universal internal support ring 13 also can be one; Fork shaft 19 exchanges with axis hole 42, perhaps also axis hole 16 and fork shaft 43 can be exchanged; Universal outer fork ring 14 can be a kind of form of fork shaft seat, and a fork shaft seat has a fork shaft 43, and each fork shaft seat can be connected with extraneous separately, and perhaps, two fork shaft seats are one, are connected the axis coaxle of two fork shafts 43 with the external world.
Lever cambered axle 39 is by driving arm axle 38, resistance arm axle 8, jack shaft 10 constitutes, jack shaft 10 is assemblied on the bearing 11, the coaxial line of the axis of jack shaft 10 and driving wheel 25 and driven wheel 7 intersects, its crosspoint overlaps with the central point of universal drive shaft bearing 37, and the upper end of jack shaft 10 fixedly is assemblied in the lower end of resistance arm axle 8, and the lower end of jack shaft 10 fixedly is assemblied in the upper end that drives arm axle 38; Drive arm axle 38 and radially be provided with groove 18, parallel effect is with 21 about being provided with two in the groove 18, effect is with the axes intersect of 21 center line and driving arm axle 38 or parallel, live axle 23 radially passes and drives arm axle 38, the effect of being assemblied in is with between 21, live axle 23 two ends are equipped with sliding bearing 63, and sliding bearing 63 is assemblied on driving wheel 25 axial two grooves 41 that are provided with, and live axle 23 two ends link together by sliding bearing 63 and stepless speed-regulating device 24; Stepless speed-regulating device 24 is by speed adjusting plate 61, synchronizing ring 52, axle 54, bearing 53 guide shafts 56 constitute, synchronizing ring 52 links together by bearing pin 62 and sliding bearing 63 and live axle 23 ends, synchronizing ring 52 outer rims are provided with groove, device has bearing 53 in the groove, bearing 53 links together by axle 54 and speed adjusting plate 61, both sides, speed adjusting plate 61 lower end are provided with linear bearing 55, and linear bearing 55 is assembled together with guide shaft 56, and guide shaft 56 1 ends are connected with bearing support 27, the other end is connected with universal drive shaft bearing 37, and the axis of guide shaft 56 is parallel with the coaxial line of driven wheel 7 with driving wheel 25; The upper end of driving wheel 25 is provided with bearing 57, and bearing 57 is installed together with stable cover 58, and the universal outer fork ring of stable cover 58 and universal drive shaft bearing 37 14 links together by bolt 60.
The working procedure of two square transmission devices 2, on universal drive shaft bearing 37, driving wheel 25 drives arm axle 38 by live axle 23 eccentric drive and makes 39 rotation motions of lever cambered axle, being installed in the axis of the jack shaft 10 on the bearing 11 and the rotational axis of lever cambered axle 39 intersects, the axis of the both sides jack shaft 10 of its crosspoint rotates around the rotational axis of lever cambered axle 39, fork ring 12 swung back and forth around the coaxial line any directions of two fork shafts 19 in jack shaft 10 drives were universal, two fork shafts 19 drive universal internal support ring 13 and swing back and forth around the coaxial line any direction of two axis holes 16, universal outer fork ring 14 is by two fork shafts 43 and two universal internal support rings 13 of axis hole 16 carryings, and universal outer fork ring 14 maintains static; Lever cambered axle 39 is done fulcrum by universal drive shaft bearing 37, realizes lever cambered axle 39 around its rotational axis rotation motion, and the resistance arm axle 8 on the lever cambered axle 39 drives driven wheel 7 rotation motions by resistance shaft 9.
With reference to Fig. 4 is a kind of form of two square transmission devices, the bearing support 64 that the two square transmission devices of this kind are held by the band expansion mandrel, jack shaft 10, driving wheel 25, driven wheel 7, live axle 23, resistance shaft 9 and bearing support constitute, wherein a kind of bearing support 64 that holds with expansion mandrel is a kind of forms of universal drive shaft bearing 37, the bearing support 64 that the band expansion mandrel holds is made of with outer ball 66 interior ball 65, and jack shaft 10 is a kind of forms of lever cambered axle 39, and the upper end of jack shaft 10 is connected with resistance shaft 9, resistance shaft 9 is connected with driven wheel 7, and driven wheel 7 is connected with the input shaft of input central gear 3 lower ends; Jack shaft 10 is directly installed on the center hole of outer ball 66, the lower end of jack shaft 10 is connected with live axle 23, and live axle 23 is connected with driving wheel 25, and the input shaft of driving wheel 25 is connected with bearing 26, bearing 26 is connected with bearing support, the coaxial line X of the axis of jack shaft 10 and driving wheel 25 and driven wheel 7
1-X
1Intersect, its crosspoint is the center of the bearing support 64 that holds of band expansion mandrel, and the axis of central point both sides jack shaft 10 is around axis X
1-X
1Rotate, jack shaft 10 drives outer ball 66 around the rotation motion of central point any direction, and driving wheel 25 is by 10 rotation motions of live axle 23 eccentric drive jack shafts, and jack shaft 10 upper end resistance shaft 9 drive driven wheel 7 rotation motions.
With reference to Fig. 4, Fig. 5, in the transmission system that constitutes by two square transmission devices 2 and stepless speed changes devices 1, axis X
1-X
1Be the rotational axis of lever cambered axle 39 and the axis coaxle of stepless speed changes devices 1, on lever cambered axle 39, drive the effect axis of arm axle 38, the effect axis of resistance arm axle 8 and the axis of jack shaft 10 are in one plane, live axle 23 wobbler actions are on the effect axis that drives arm axle 38, and active force is F
1, directed force F
1With axis X
1-X
1The gyroscopic action radius be r
1Perhaps, lever cambered axle 39 shown in Figure 4 is exactly a jack shaft 10, and on the axis of live axle 23 wobbler action jack shafts 10, active force is F
1, directed force F
1With axis X
1-X
1The gyroscopic action radius be r
1F
1With r
1The moment of torsion that produces is M
1, being called the power source moment of torsion again, output power is P
1, the angle of revolution speed of driving wheel 25 is ω
1, be called power source moment of torsion angular velocity; With axis X
1-X
1The axis that intersects vertically mutually is X
2-X
2, its crosspoint is the central point of universal drive shaft bearing 37, lever cambered axle 39 is done fulcrum with universal drive shaft bearing 37, and does rotation motion thereon, directed force F
1Act on the lever cambered axle 39 by live axle 23, around axis X
1-X
1In the time of rotation motion, directed force F
1Make lever cambered axle 39 in axis X
2-X
2Direction produces an instantaneous interior moment M, and the instantaneous angular velocity of instantaneous interior moment M is ω, owing to do not have relative movement between live axle 23 and the lever cambered axle 39, instantaneous interior moment M is by directed force F
1Effect produces
M
1＝F
1×r
1 (1-1)
M＝F
1×L
1
L
1It is directed force F
1To axis X
2-X
2Distance;
M＝M
1×L
1/r
1 (1-2)
The direction and the moment of torsion M of moment M in instantaneous
1Direction always mutually vertical, instantaneous in the direction of moment M always changing, have instantaneity, instantaneous in moment M make that the active force of resistance arm axle 8 wobbler actions on resistance shaft 9 is F
2, driven wheel 7 does not have relative movement, directed force F with resistance shaft 9
2Acting on the driven wheel 7, is an internal force, because the instantaneity and the directed force F of instantaneous interior moment M
2Instantaneity be corresponding, directed force F
2To axis X
2-X
2Distance be L
2With reference to Fig. 4, directed force F
2Around X
1-X
1Action radius is r
3The time moment of torsion be M
3,
F
2＝F
1×L
1/L
2 (1-3)
r
3/r
1＝L
2/L
1
r
3＝r
1×L
2/L
1 (1-4)
By M
3=F
2* r
3, formula (1-1), formula (1-3), formula (1-4):
M
3＝M
1，
M
3At r
3Make the size and the M of use
1Equate M
1By rigid body lever cambered axle 39 at r
3Make the moment size and Orientation and the M of use
3Equate with identical.
With directed force F
2By r
3Move to r as use
2Make use, F
2Relative axis X
1-X
1Moment of resistance be M
2, moment of resistance M
2With M
3The pass be
M
2/M
3＝r
2/r
3
M
2＝M
3×r
2/r
3 (1-5)
By formula (1-1), formula (1-2), formula (1-3), formula (1-4):
M
2＝M
1×r
2×L
1/r
1×L
2
If
Be the action radius ratio;
Be the bar ratio,
By formula (1-6),
Product be the velocity ratio of two square transmission devices 2, change r
1And r
2And L
1And L
2, all can change
With
For example, change L
1Length, work as L
1Greater than L
2The time, L
1Big more, M
2Just big more, the bar ratio
Just big more; Equally, change radius r
2Also can change the action radius ratio
The action radius ratio that selection varies in size
With the bar ratio
Corresponding M
2Vary in size, with M
2Corresponding instantaneous interior angular velocity is ω
2As active force F
1On lever cambered axle 39, select different L
1And r
1, when obtaining different working position,
With
All will obtain changing.
On two square transmission devices 2, F
1Relative axis X
2-X
2Direction is by theorem of angular momentum
In the formula (2-1) ω a and ω b be instantaneous in moment M instantaneous angular velocity omega from ω a to the whole story of ω b state instantaneous in angular velocity; Lever cambered axle 39 is in axis X
2-X
2The rotary inertia of direction is Jg.When acting on different positions, live axle 23 makes L
1And r
1Vary in size directed force F
1Relative X
2-X
2The working position difference of axis is established directed force F
1At L
1And r
1The moment of torsion of maximum effect size be Ma, instantaneous in angular velocity be ω a, this moment directed force F
1Point of action to axis X
2-X
2Rotary inertia be Ja; Change directed force F
1Working position make M transform to Mb by Ma, instantaneous in angular velocity omega transform to ω b by ω a, by theorem of parallel axes, the rotary inertia Jg of lever cambered axle 39 will transform to Jb by Ja; Thus, when the lever cambered axle transformed to Mb by Ma, lever cambered axle 39 was at X
2-X
2The rotary inertia Jg of axial direction and instantaneous interior angular velocity omega all will change; With directed force F
1Corresponding directed force F
2Also will change internal torque M
2Thereupon to change; By formula (1-2) L
1And r
1Be constant,, be actually M by formula (2-1)
1Lever cambered axle 39 is acted on X
2-X
2The momentum change of axis.
As active force F
1Be fixed on a position and do the time spent, because under the permanent power, the power source moment of torsion M of input
1And angular velocity omega
1Being constant, is a constant by formula (2-1) ω a and ω b, instantaneous in the angular velocity omega percentage speed variation be zero, M is a constant, the M that is obtained by formula (1-6)
2And angular velocity omega in instantaneous
2It also is constant.
At stepless speed changes devices 1 fooled input torque M
1Do the time spent, its output terminal will produce an output torque M
4, corresponding output angle speed is ω
4:
M
4-M
f＝J
f×β
4 (2-2)
M in the formula
fBe resisting moment, J
fBe the rotary inertia of load, β
4Angular acceleration for stepless speed changes devices 1 output terminal;
For stepless speed changes devices 1, work as power P
1During constant input, the output angle acceleration β of stepless speed changes devices 1
4Constantly reducing output torque M
4Also reduce the output angle speed omega thereupon
4Constantly increase, the output angle momentum of stepless speed changes devices 1 is in the incremental process;
Because the kinetic characteristic of stepless speed changes devices 1 is as output torque M
4When forming, its reaction torque M
4fWill be by stepless speed changes devices 1 with moment of torsion M
4fAffact the input end radius r of stepless speed changes devices 1
2Make use, make internal torque M
2Set up M
4fWith M
2Equal and opposite in direction, direction are a pair of action and reaction moment of torsion on the contrary.
M
4f＝-(J
f×β
4+M
f)
M
2-M
4f＝J×β
4 (2-3)
J is F in the formula
2Relative X
1-X
1Axis is at action radius r
2The rotary inertia at place;
Input end and output terminal at stepless speed changes devices 1 are worked as equal and opposite in direction, direction pair of opposite M
4fWith M
2During establishment, by formula (2-3) angular acceleration β
4Be zero, by formula (2-2) output torque M
4With resisting moment M
fEqual and opposite in direction, direction is opposite, and power source is turned round M
1Is zero by two square transmission devices and stepless speed changes devices 1 with the bonding force that load produces, the output angle speed omega
4Be constant, total angular momentum remains unchanged, and meets the condition of the conservation of angular momentum, and forward slepless transmission device is in ω
4Travel at the uniform speed the stage, work as M
4fWith M
2When corresponding effect travels at the uniform speed, ω
2With ω
4Equal and opposite in direction, direction is identical.
By formula (1-6) directed force F
1On lever cambered axle 39, by L
1And r
1The maximum effect size when the least action dimensional changes, M
2Also reduce its instantaneous interior angular velocity omega thereupon
2Increase thereupon; The kinetic characteristic of stepless speed changes devices 1 output terminal also is along with output torque M
4Reduce its angular velocity omega
4Increasing.
The reason of forward slepless transmission device forward slepless transmission is that external load is certain, input power P
1Be permanent power, directed force F
1Change working position and make M
2In the time of from large to small, work as M
2Less than M
4fThe time, because the effect of permanent power, stepless speed changes devices 1 output terminal recovers the state of differential gear transmission system stepless speed variator automatic stepless speed change, angular acceleration β
4Continue to diminish the output angle speed omega
4Become big, M
4fDiminish, work as M
4fBe reduced to and M
2Equal and opposite in direction the time, angular acceleration β at this moment
4Be zero, stepless speed changes devices 1 output terminal will be with the angular velocity omega after increasing
4Travel at the uniform speed directed force F
1Constantly change working position, make M
2Constantly diminish the angular velocity omega that will constantly be increased
4Travel at the uniform speed.
More than infinite variable speed process, be to pass through directed force F
1In the diverse location effect of the driving arm axle 38 of lever cambered axle 39, change internal torque M
2With M
4fState of equilibrium, the actual stepless speed changes devices 1 output terminal output angle speed omega that changes
4With angular acceleration β
4Be power source input torque M under the permanent power
1It is to have utilized differential gear transmission system stepless speed variator, load one timing under permanent power, and accelerating process has only the continuous increase of momentum, and permanent power makes it always have the tendency of acceleration in this process; Add two square transmission devices 2 at stepless speed changes devices 1 input end, can make it in the acceleration process, initiatively obtain different M
2With M
4fState of equilibrium, to obtain different angular velocity omegas
4Travel at the uniform speed.Forward slepless transmission device can be at angular acceleration β
4Constantly reduce angular velocity omega
4Constantly the postive direction that increases realizes stepless change.
Forward slepless transmission device can only stepless speed regulation obtains the angular velocity omega that increases than upper level in the forward slepless transmission process
4, if with angular velocity omega
4Reduce, can pass through to change the state of the outer load of stepless speed changes devices 1 output terminal, or change the method for input power, influence output torque M
4, to reach angular velocity omega
4The purpose that reduces; Can not be by changing internal torque M
2Reduce angular velocity omega
4, moment of resistance can not change the output state of stepless speed changes devices 1.
Fig. 1, Fig. 2 and shown in Figure 3 be a kind of concrete device of forward slepless transmission device, concrete working procedure is as follows:
The power source moment of torsion drives arm axle 38 by driving wheel 25 and live axle 23 and makes lever cambered axle 39 rotation motion on the universal drive shaft bearing, resistance arm axle 8 on the lever cambered axle 39 drives driven wheel 7 rotation motions by resistance shaft 9, driven wheel 7 drives input central gear 3, makes stepless speed changes devices 1 will import the center
After the motion decomposition of gear 3 is synthetic, do rotation motion by output center gear 44 outputs; The forward slepless transmission device be by regulating action radius ratio í 1 and bar than í 2, reach infinite variable speed purpose, place to drive the live axle 23 that arm axle 38 footpaths make progress, be with 21 to drive and drive arm axles 38 and rotate together by effect; Stepless speed-regulating device 24 drives live axle 23 and can move back and forth up and down, because effect is with 21 center lines and the axes intersect that drives arm axle 38, live axle 23 is in groove 18 diverse locations that drive arm axle 38, and live axle 23 is by the action radius differences of effect with 21 pairs of driving arm axles 38; Simultaneously, because live axle 23 is driving the diverse location of arm axle 38 on axially, make live axle 23 in the action length difference that drives arm axle 38, two square transmission devices can obtain different action radius ratio and bar ratio, and the output speed and the output torque of output center gear 44 change thereupon.
In two square transmission devices 2, the invariant position that the live axle 23 that is installed together with driving arm axle 38 and driving wheel 25 arrives universal drive shaft bearing 37 central points is set, L
1Be a definite value, L is set equally
2Be a definite value, the velocity ratio of two square transmission devices 2 is a fixed drive ratio, becomes a kind of forward retarder that fixed drive ratio is arranged by two square transmission devices 2 and the forward slepless transmission device that stepless speed changes devices 1 constitutes.
Forward slepless transmission device or forward retarder are the purposes that recently reaches stepless change or deceleration by the transmission that changes two square transmission devices 2, because two square transmission devices 2 are velocity ratios of being realized by the bearing transmission, the transmission efficiency height, transmission efficiency after the forward slepless transmission device speed change can remain unchanged, compare traditional friction stepless gearbox, efficient is higher, can only compare by changing the gear-shift transmission that tooth radius obtains various velocity ratios with traditional, has saved the consumption of steel.
With reference to Fig. 6 is the kind of drive of a kind of specific embodiment of the present utility model, two square transmission devices 2 in this schematic representation are a kind of simple and easy techniques of painting, the driven wheel 7 of two square transmission devices 2, by be assemblied on the bearing support the axle 88 with umbrella gear 89 mutual mounts together, umbrella gear 89 is meshed with umbrella gear 92, umbrella gear 92 is assembled together with the axle 90 that is assemblied on the bearing support, umbrella gear 92 can move axially on axle 90, corresponding with umbrella gear 92 is umbrella gear 91, umbrella gear 91 is assemblied on the axle 90, umbrella gear 91 can move axially on axle 90, axle 90 two ends shunting means two cover stepless speed changes devicess 1, axle 90 two ends and two input central gears 3 are assembled together, umbrella gear 89, and umbrella gear 92 and umbrella gear 91 are with the input transmission device of axle 90 and axle 88 formation input central gears 3.The enforcement of present embodiment is with two square transmission device 2 output terminal power source moment of torsion M
1With moment of resistance M
2,
By umbrella gear 89, the input transmission device that umbrella gear 92 and umbrella gear 91 constitute with axle 90 and axle 88 can be with M
1With moment of resistance M
2Naturally be assigned on the two cover stepless speed changes devicess 1, promptly the external load that is subjected to when the stepless speed changes devices 1 at axle 90 two ends occur one big one hour because moment can correspondingly be distributed M on same axle
1With moment of resistance M
2Can be assigned to the two ends of axle 90 naturally according to two ends load size separately; Utilize this characteristic, be used for the motivational drive of automobile, driving two parallel car-wheel, is a kind of novel automobile variable speed drive unit, when being used for automobile at forward slepless transmission, automobile can obtain efficient speed changer transmission efficiency, can reach the purpose of deceleration during car deceleration by the output torque of intervening the forward slepless transmission device, as, the recover kinetic energy utilization that produces when taking with car deceleration, influence output torque simultaneously, reduce output speed; When two square transmission devices 2 kept a direction to rotate, umbrella gear 92 exchanged with umbrella gear 91, can make the output terminal of two gear differential gear trains 1 realize the rotation of positive and negative both direction.
With reference to Fig. 7 is the kind of drive of a kind of specific embodiment of the present utility model, two square transmission devices 2 in this schematic representation are a kind of simple and easy techniques of painting, the two square transmission devices 2 of two covers are connected in parallel, the driven wheel 7 of two square transmission devices 2 of lower end, be connected with axle 93 assemblings on being assemblied in bearing support, axle 93 upper ends assembling connection gear 94, the driving wheel 25 of two square transmission devices 2 of upper end be assemblied in bearing support on spools 95 assemble and be connected, axle 95 lower ends are connected with gear 96 assemblings, gear 94 is meshing with each other with gear 96, the driven wheel 7 of two square transmission devices 2 of upper end is assembled together with synchronous pulley 98 mutually by the axle 97 that is assemblied on the bearing support, the upper end of axle 97 is connected with 3 assemblings of the input central gear of left side stepless speed changes devices 1, synchronous pulley 98 is connected with synchronous pulley 100 by the capable band 99 of synchronous tooth, and synchronous pulley 100 is connected with the input central gear 3 mutual assemblings of right side stepless speed changes devices 1 by the axle 101 that is assemblied on the bearing support.
The enforcement of present embodiment, two groups of two square transmission device 2 velocity ratios, with the product of gear 94 with the velocity ratio of gear 95, make the input that the input end of stepless speed changes devices 1 can keep power source moment of torsion M1, again can be so that moment of resistance M2 obtains the velocity ratio of two square transmission device 2 velocity ratios of two-stage and gear 94 and gear 95; The stepless speed changes devices 1 of two groups of parallel connections can distribute moment of torsion M1 and the M2 that is passed over by two square transmission devices 2 naturally.This embodiment is applicable to the externally device of acting that is parallel to each other, and as propeller cavitation that can a pair of boats and ships of parallel drive, can be a kind of novel boats and ships speed-changing driving device.
More than the joint that is connected in parallel of the two square transmission devices 2 of two covers, two groups of two square transmission devices 2 directly are cascaded, obtain the product of two groups of two square transmission device 2 velocity ratios.
Claims (6)
1, a kind of forward slepless transmission device is made of stepless speed changes devices and two square transmission device, it is characterized in that, described stepless speed changes devices is made of the gear differential gear train, described pair of square transmission device is by driving wheel, live axle, the lever cambered axle, the universal drive shaft bearing, resistance shaft, stepless speed-regulating device, driven wheel constitutes, the lever cambered axle is by driving arm, jack shaft, resistance arm constitutes, the lever cambered axle is installed on the universal drive shaft bearing of fixedlying connected with the external world, the rotational axis of lever cambered axle is by the central point of universal drive shaft bearing, resistance arm is installed together by resistance shaft and driven wheel, driving arm is provided with live axle, and the effect that live axle is assemblied in the driving arm is with, and the center line of the effect band in the driving arm intersects with the coaxial line of driven wheel with driving wheel or be parallel, live axle is connected with stepless speed-regulating device by driving wheel, stepless speed-regulating device and live axle can driving arm axially on and driving wheel axially on axially move back and forth, driving wheel links together with the input shaft that is installed on the bearing support, driven wheel links together by the input shaft of input central gear or the input central gear of input transmission device and stepless speed changes devices.
2, a kind of forward slepless transmission device according to claim 1, it is characterized in that, in the described pair of square transmission device, the live axle that setting and driving arm and driving wheel are installed together is to the invariant position of universal drive shaft bearing central point, the resistance shaft that setting and resistance arm and driven wheel are installed together is to the invariant position of the central point of universal drive shaft bearing, and the forward slepless transmission device can become a kind of forward speed reducer.
3, a kind of forward slepless transmission device according to claim 1 is characterized in that described stepless speed changes devices can be differential gear transmission system stepless speed variator.
4, a kind of forward slepless transmission device according to claim 1 is characterized in that, with the setting of can connecting of described pair of square transmission device, perhaps described pair of square transmission device can be arranged in parallel.
5, a kind of forward slepless transmission device according to claim 1, it is characterized in that described stepless speed changes devices can be arranged in parallel, described pair of square transmission device linked together by input shaft or input transmission device and input central gear in the stepless speed changes devices that is arranged in parallel.
6, a kind of pair of square transmission device, by driving wheel, live axle, the lever cambered axle, the universal drive shaft bearing, resistance shaft, driven wheel constitutes, it is characterized in that, described lever cambered axle is by driving arm, jack shaft, resistance arm constitutes, perhaps, the lever cambered axle is made of jack shaft, on the universal drive shaft bearing, the jack shaft of lever cambered axle is installed on the bearing, and Bearing Installation is pitched in universal on the center hole of ring, universal interior fork encircles radially, and two fork shafts at two ends are installed on two axis holes of universal internal support ring, universal outer fork encircles radially that two fork shafts at two ends are installed on two axis holes of universal internal support ring, universal in fork encircle radially the coaxial line of two fork shafts at two ends and encircle radially with universal outer fork that the coaxial line of two fork shafts at two ends intersects vertically mutually, the universal outer fork ring and the external world are fixedly connected, driven wheel links together with the output shaft that is installed on the bearing support, resistance arm is installed together by resistance shaft and driven wheel, and driving arm is installed together by live axle and driving wheel, and driving wheel links together with the input shaft that is installed on the bearing support, the rotational axis of lever cambered axle passes through the central point of universal drive shaft bearing, and overlaps with the coaxial line of driving wheel and driven wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200053662U CN201407328Y (en) | 2008-02-20 | 2009-02-11 | Two torque continuously variable transmission |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820017726.6 | 2008-02-20 | ||
| CN200820017726 | 2008-02-20 | ||
| CN2009200053662U CN201407328Y (en) | 2008-02-20 | 2009-02-11 | Two torque continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407328Y true CN201407328Y (en) | 2010-02-17 |
Family
ID=41678262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200053662U Expired - Fee Related CN201407328Y (en) | 2008-02-20 | 2009-02-11 | Two torque continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407328Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010091601A1 (en) * | 2009-02-11 | 2010-08-19 | Chen Maosheng | Forward stepless speed changing device and method thereof |
| WO2022217981A1 (en) * | 2021-04-12 | 2022-10-20 | 张荣强 | Circumferential lever booster and transmission means thereof |
-
2009
- 2009-02-11 CN CN2009200053662U patent/CN201407328Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010091601A1 (en) * | 2009-02-11 | 2010-08-19 | Chen Maosheng | Forward stepless speed changing device and method thereof |
| WO2022217981A1 (en) * | 2021-04-12 | 2022-10-20 | 张荣强 | Circumferential lever booster and transmission means thereof |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20110211 |