CN103591230B - Power dividing multistage infinitely variable speed transmission and change phase method - Google Patents
Power dividing multistage infinitely variable speed transmission and change phase method Download PDFInfo
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- CN103591230B CN103591230B CN201310504504.2A CN201310504504A CN103591230B CN 103591230 B CN103591230 B CN 103591230B CN 201310504504 A CN201310504504 A CN 201310504504A CN 103591230 B CN103591230 B CN 103591230B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/76—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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Abstract
The present invention discloses a kind of power dividing multistage infinitely variable speed transmission and changes phase method.This device has multiple, or at least three, same transmission direction, different zero velocity ratio, including boundary speed ratio；Its speed adjustable range, with boundary speed ratio as boundary, is divided into multiple, or at least 2 speed ratio segmentations.This device carries out, at boundary speed ratio, the section of changing, the continuous modulation of work speed ratio when can be achieved with the section of changing, thus one roomy and in continuous print ratio coverage, completely smooth infinitely speed governing, and transmission expeditiously.Embodiment relates to the multistage power dividing variable speed drive with friction-type and Hyaulic infinite variable speed device speed governing.
Description
Technical field
The invention belongs to the multistage infinitely variable speed transmission with power dividing mode conveying rotary motion and power.
In actual applications, this kind of actuating device, have in addition to infinitely variable speeds, also have other mode of operation, such as step speed change pattern, idle mode etc..In this article, if not otherwise indicated, described content all pertains only to the stepless shift mode of described device.
Background technology
Existing power dividing infinitely variable speed transmission, is the most also called for short " merit divides speed change gear "；There is an input mechanokinetic driving link and an output mechanokinetic driven member；Including a set of degree of freedom train more than 1, it is called for short " spending train " more；And the buncher of a set of referred to as " speed regulator "；This speed regulator, has two driving members being connected with many degree trains, and its speed ratio can infinitely modulation.The buncher that can be used as speed regulator has the polytypes such as friction-type, electrodynamic type, fluid pressure type, hydraulic power formula.
Here, the degree of freedom of the most so-called train, refer to the described degree of freedom taken turns and tie up to when its support is fixed.And " connection " between mentioned driving member, it is to refer between two driving members, there is the drive thereto determining speed ratio；Such as, being connected between axle or gear, the engagement of gear and gear, the contacting of friction pulley and friction pulley, again or the hydraulic drive of axle and axle contacts；Its speed ratio can be equal or different to 1.
Merit divides many degree train of speed change gear and speed regulator to establish after being in transmission connection, the speed ratio of two driving members of variation the latter, so that it may so that described merit divides the speed ratio of the master and slave moving part of speed change gear that corresponding change occurs.Therefore, herein in speed regulator, spend, with, the driving member that trains are connected more, be referred to as the speed governing part of this device；Correspondingly, the driving member being connected with speed governing part in many degree trains, the most modulated part.
In merit divides speed change gear, speed regulator also transmits part mechanical output.Referred to herein as " speed governing branch power ".Owing to the efficiency of general buncher is far below gear drive, therefore merit divides speed change gear only when its speed governing branch power is less, and efficiency could be higher.But mechanical theory and engineering practice the most fully prove: merit divides the lower-powered ratio coverage of speed governing branch of speed change gear the narrowest, thus its efficient ratio coverage is also impossible to wider.But in actual application, it is often necessary to this kind of device can have a wider efficient speed adjustable range；To this end, people have to be allowed to combine with gear-driven step speed change device；Or, the many kinds of annexations changed between its driving member；With the efficient ratio coverage that it is narrower, it is transformed into multiple, or at least two, the efficient speed ratio segmentation being connected two-by-two, and it is spliced into a wider efficient ratio coverage；Here it is existing power dividing multistage infinitely variable speed transmission, or it is called for short multistage merit separating device.
Here, " speed ratio segmentation " or " segmentation " mentioned by Ben Wen refers to, described multistage merit separating device is at its master and slave moving part, and the driving member that is connected with frame is the most constant, the state that annexation between its each driving member is the most constant simultaneously, the speed ratio of its speed regulator of modulation, the respective range that the speed ratio between the master and slave moving part of this device can become therewith.
Obviously, when needing to make the speed ratio of described device, from its place segmentation be tuned to another segmentation go time, it is necessary to the suitably annexation between change driving member, i.e. carry out the change section similar with step speed change device gear shift and operate.
, there is following common deficiency in existing multistage merit separating device:
(1) before and after the Chang Yin section of changing, driving-chain changes, cause its speed ratio, or the stress of its driving member, different at the abutting end of adjacent sectional, what is called " section of changing circulation " phenomenon can be produced when fluid drive, thus need to make its adjacent sectional have a range of overlap at abutting end；Between speed ratio segmentation the most not continuous.
(2), during the section of changing, often mechanical shock is produced because of the stress of the driving member involved by operation and/or kinestate sudden change.
(3) for avoiding interfering with each other of different driving-chain, the section of changing operation has interruption that power transmits unavoidably.
Summary of the invention
The aforementioned drawback of existing multistage merit separating device, significantly limit its industry application.But, if solving foregoing problems, this kind of actuating device buncher that to be again that efficiency, capacity and life-span press on towards gear-driven, the most excellent.
The purpose of the present invention, in that solve the foregoing problems of existing multistage merit separating device, make the buncher of function admirable.
In order to realize this purpose, the present invention proposes a kind of new power shunting multistage infinitely variable speed transmission, is called for short " Novel speed variator " or " assembly of the invention " herein.Described device is constant at its master and slave moving part a kind of, and the state that its annexations spent between trains and frame and between many internal each driving members of degree train the most constant more, and its trains of spending have multiple available modulated part more；Such available modulated part corresponds respectively to same transmission direction, different zero velocity ratio；And its speed adjustable range is with described zero velocity ratio as boundary, is divided into multiple, or at least 2, speed ratio segmentation adjacent two-by-two.Novel speed variator zero velocity ratio between its adjacent sectional, carries out, by the method for modulated part, the section of changing to switch in, and just can make its speed ratio modulation continuously when span, and stably can work at the section of changing point；Thus in a roomy ratio coverage, realize infinitely variable speeds completely.
" zero velocity ratio " described herein, is that merit divides speed change gear to be speed ratio when zero at its arbitrary available modulated part rotating speed.Hereafter as will be described in more detail.
Owing to make use of multistage merit to divide the speed change gear particularity when its zero velocity ratio works, the present invention is able to it has been made following improvement:
(1) make to have between the adjacent speed ratio segmentation of described device and determine and unique abutment points, and make the speed ratio of adjacent each segmentation all continuous at its abutment points.
(2) make the abutment points of its adjacent sectional, be the section of changing point, be also a stable operating point simultaneously；Thus avoid interruption in power and the section of changing circulating phenomenon natively, it is no longer necessary between contiguous segment, leave the speed ratio paragraph of overlap.
Thus assembly of the invention, can externally behave like the buncher of a not segmentation in a bigger speed adjustable range including multiple segmentation.Additionally, proper the relevant structural parameters of described Novel speed variator are selected, it is also possible to be allowed to
(1) in a speed adjustable range in need, sufficiently high efficiency is kept.
(2) there is not mechanical shock when the section of changing；And the section of changing control and operating condition are the loosest.
Below with reference to accompanying drawing, content, principle and enforcement to this invention are further described.
Accompanying drawing explanation
Fig. 1, including Fig. 1 a, Fig. 1B, Fig. 1C and Fig. 1d；Show that existing merit divides the basic structure of speed change gear, in order to more clearly principle and structure to the present invention are described.
Fig. 2, including Fig. 2 aAnd Fig. 2 b；Fig. 2 aIt it is the basic structure schematic diagram of assembly of the invention；Fig. 2 bIt it is then zero flow velocity the most each speed ratio segmentation of this device distribution schematic diagram on number axis.
Fig. 3, shows a kind of friction type stepless speed changer that can be used for the present invention.
Fig. 4 and Fig. 5 respectively for a kind of with buncher speed governing shown in Fig. 3, the structure diagram of Novel speed variator.
Fig. 6, including Fig. 6 a. and Fig. 6 b；Wherein, Fig. 6 aIt it is the structure diagram of a kind of Novel speed variator with hydrodynamic governor；Fig. 6 bIt it is then the operating list of its clutch and brake.
Fig. 7, shows the hydraulic part combination of a kind of two-way change discharge capacity that can be used for the present invention.
Fig. 8, including Fig. 8 aAnd Fig. 8 b；Wherein, Fig. 8 aIt it is the structure diagram of a kind of Novel speed variator with hydrodynamic governor；Fig. 8 bIt it is then the operating list of its clutch and brake.
Detailed description of the invention
Existing merit divides speed change gear such as Fig. 1 aShown in, there is driving link 1, driven member 4；Including a set of buncher B as speed regulator, and one, spending train A more；In the stepless speed regulation state of this device, the degree of freedom of many degree trains A is 2.
Speed regulator B has two driving members can being connected with many degree trains A, referred to as speed governing part, and its speed ratio can infinitely modulation.Many degree trains A have at least 2 driving members 2 and 3 independent of each other that move in this train, the most modulated part.Described speed governing part is connected with a modulated part respectively.
In many degree trains A, the modulated part that can be connected with speed governing part respectively, it is referred to as available modulated part；Including being connected with speed governing part, its modulated part retrained by speed regulator that moves, it is referred to as using modulated part.Arbitrary described merit divides speed change gear in its stepless speed regulation state, must have a pair and use modulated part a pair connect by speed governing part and difference correspondence the most therewith.
Here, so-and-so driving member " motion is independently of one another in this many degree train " so-called means, it is assumed that this many degree train be in its outside not there is the isolated state being in transmission connection, described driving member can move independently of one another.
Described merit divides speed change gear, and after its speed governing part is connected with modulated part, the motion of train A is retrained by speed regulator B；Changing the speed ratio between its speed governing part, this merit divides the speed ratio of speed change gear the most correspondingly to change.
The speed ratio of speed change gear " merit divide " mentioned by Ben Wen, if not otherwise indicated, mean the rotating speed of its driving link ratio to the rotating speed of its driven member, it may be assumed that
I=Na/Nb
I-described merit divides the work speed ratio of speed change gear
Na-the rotating speed of its driving link
Nb-the rotating speed of its driven member
Such as Fig. 1 aShown in, in merit divides speed change gear, mechanical output PiAfter driving link 1 inputs, speed governing branch power stream P can be divided intorWith train branch power stream Pg, transmit via speed regulator B and Duo Du train A respectively, then converge for power PoExported by driven member 4.
The described merit of infinitely variable speeds state divides speed change gear, all can have a speed ratio determined when its arbitrary modulated part is static；And it is arbitrary the most static with modulated part, its speed governing branch power stream PrNecessarily stop, such as Fig. 1 bShown in.Now, the power that this device effectively transmits, will be all via train A；So, this speed ratio is referred to as " the zero velocity ratio " of this device.
Described merit divides each of speed change gear to can use modulated part corresponding with one zero velocity ratio；Certainly, its a pair with modulated part also to there being a pair zero velocity ratio；This, to zero velocity ratio, has conclusive impact to the power dividing characteristic of described device.Therefore merit divide speed change gear with the zero velocity ratio corresponding to modulated part, also known as its feature speed ratio.
Here, so-called merit divides the power dividing characteristic of speed change gear, i.e. speed governing branch power portion in its general power of this device, the functional relationship become with the work speed ratio of this device.
Merit divides the zero velocity ratio of speed change gear to be by its structures shape spending train more.Generally, the zero velocity ratio modulated part corresponding to independent relative to the motion of master and slave moving part, is the finite value of non-zero, and can be by its transmission direction of positive and negative symbology.
Existing merit divides the modulated part of speed change gear, and in being possible not only to be its many degree trains, the driving member that the motion of its master and slave moving part is independent relatively, such as Fig. 1 aIn part 2 or 3；Can also be its driving link 1 or driven member 4, and the driving member connected.According to the agreement previously with regard to speed ratio, if such as Fig. 1 cShown in, the driving link 1 of described device or its driving member connected are modulated parts, then the zero velocity ratio of its correspondence is zero.And if such as Fig. 1 dShown in, its driven member 4 or its driving member connected are modulated parts, then the zero velocity ratio of its correspondence is infinitely great.Speed ratio zero, with infinitely great, is the particular value between forward and reverse speed ratio, and direction symbol is indefinite, can also be considered as the zero velocity ratio with either direction in the same direction.
It should be noted that from mechanical theory and engineering practice known:
1, when merit divides the speed ratio of speed change gear equal to one feature speed ratio, the speed governing part that this feature speed ratio is corresponding is static, such as Fig. 1 b；And the speed governing part corresponding to another feature speed ratio, owing to its rotating speed at that time will not be zero, and speed governing branch power stream has interrupted, and its active force is necessarily zero.
As long as 2 merits divide the work speed ratio of speed change gear between two feature speed ratio, would not produce and reversely transmit between its speed regulator and Duo Du train, and often lead to the circulating power that speed governing branch power is excessive.
3, merit divides the power dividing characteristic of speed change gear substantially only relevant with the feature speed ratio of this device, and and other structural parameters unrelated, also the most unrelated with the transmission speed ratio between its speed governing part and modulated part.Further, if merit divides the ratio of a pair feature speed ratio of speed change gear to be more bordering on 1, then speed governing branch power when this device works between this is to feature speed ratio is the least, and its efficiency is the highest.
If the rotating speed of a speed governing part of 4 described speed regulator B, can be tuned to zero when the rotating speed of another speed governing part is not zero, then this speed governing part is referred to as " having zero-speed speed governing part ".When the rotating speed of this speed governing part is tuned to zero continuously, described merit divides the speed ratio of speed change gear to be i.e. tuned to the zero velocity ratio of its correspondence continuously.In other words, for make the speed adjustable range of described device at a zero velocity ratio continuous, it is necessary to make its correspondence is having zero-speed with speed governing part.
It is described below how the present invention utilizes merit to divide the above-listed characteristic of speed change gear to realize aforesaid goal of the invention.
Such as Fig. 2 aShown in, the inventive system comprises degree train A, a set of speed regulator B, driving link 5 and driven member 10 more than one.Described speed regulator B has a pair to be connected with modulated part with a pair in train A respectively with speed governing part.This device has a following features:
1, such as Fig. 2 bShown in, this device, in its a kind of infinitely variable speeds state, keeps its master and slave moving part constant, and the annexation between its many degree trains and frame and between many internal each driving members of degree train the most all keeps constant simultaneously, its many degree trains A have at least 3 available modulated parts, such as 6,8 and 9；Such available modulated part corresponds respectively to 3 zero velocity ratios, such as I of same transmission direction, different numerical valuex、Iy、Iz；
2, described 3 zero velocity ratios contain the zero velocity ratio of at least one non-zero finite value, such as Iy, it is referred to as speed ratio of demarcating；Its numerical value is between zero velocity ratio I two other describedxAnd IzBetween, i.e. Ix<Iy<Iz；
3, described device, has a continuous print speed adjustable range S, this scope comprise at least two with described boundary speed ratio as boundary, segmentation S adjacent to each other1With S2, such as Fig. 2 aWith 2bShown in.Wherein, speed ratio is less than IySegmentation S1A pair feature speed ratio be IxAnd boundary speed ratio Iy, correspondingly, it is being 6 and 8 with modulated part；And speed ratio is more than IySegmentation S2A pair feature speed ratio be IzAnd boundary speed ratio Iy, correspondingly, it is being 9 and 8 with modulated part；
4, two of speed regulator B are with in speed governing part, and at least one is to have zero-speed speed governing part, such as part 7；
5, the modulated part corresponding to described boundary speed ratio is in the used time, and the speed governing part connected is to have zero-speed speed governing part；Such as IyCorresponding modulated part 8 is in the used time, and the speed governing part 7 connected has zero-speed；When the rotating speed of part 7 is continuously adjustable zero, the speed ratio of described device is i.e. continuously adjustable boundary speed ratio Iy, thus the speed ratio of this device is at this boundary speed ratio IyContinuously；
6, by this actuating device when a described fragmentary works a pair with modulated part switch to its adjacent sectional with modulated part pair so that it is work speed ratio is from former place segmentation S1Or S2Proceed to its adjacent sectional S2Or S1After, the boundary speed ratio I of described two adjacent sectionalyWill not change.Thus the speed adjustable range S of this device, the seriality at this boundary speed ratio will not be affected by the section of changing.
Novel speed variator as above, can be stably at its speed ratio I that demarcatesyWork, method is as follows:
1 as in figure 2 it is shown, by described boundary speed ratio IyCorresponding is being tuned to zero with the rotating speed of speed governing part 7, makes the speed ratio of described Novel speed variator be tuned to this boundary speed ratio；
2, keeping this by the zero-speed state of speed governing part 7, described Novel speed variator is i.e. at this boundary speed ratio IyWork.For keeping the zero-speed state of this speed governing part, can continue to keep it in speed regulator B is zero to the speed ratio of another speed governing part；Can also directly brake this speed governing part or its modulated part.
Novel speed variator as shown in Figure 2, its work speed ratio is from described segmentation S1Or S2In, cross over its boundary speed ratio Iy, stepless modulation to its adjacent segmentation S2Or S1In, method is as follows:
1, by described boundary speed ratio IyCorresponding is being tuned to zero with the rotating speed of speed governing part 7, makes the speed ratio stepless modulation of described Novel speed variator to described boundary speed ratio Iy；
2, the speed ratio at described device is equal to this boundary speed ratio IyTime, release another with the constraint to its modulated part of the speed governing part；
If 3 these devices need at speed ratio less than described boundary speed ratio IySegmentation S1Interior continuation speed governing, then another speed governing part setting up speed regulator is less than another feature speed ratio I of described boundary speed ratio to this segmentationxThe constraint of corresponding modulated part 6；If described device needs at speed ratio more than described boundary speed ratio IySegmentation S2Interior continuation speed governing, then another speed governing part setting up speed regulator is more than another feature speed ratio I of described boundary speed ratio to this segmentationzThe constraint of corresponding modulated part 9；
4, continue the speed ratio of speed regulator described in modulation, the infinitely variable speeds in the segmentation newly proceeded to of this device can be made.
Above-listed step 2 and 3 order can exchange, it is also possible to carry out simultaneously.
The most also will see, and set up or release the speed regulator constraint to certain modulated part, can have different methods.
In sum, Novel speed variator as shown in Figure 2 can realize the purpose of the present invention.Because:
First, the adjacent speed ratio segmentation of this device does not has overlap, and continuous at its boundary speed ratio；Thus the speed ratio of this device can be in the bigger speed adjustable range including described adjacent sectional, smooth and modulation continuously.
Second, owing to this device can make the section of changing operating point also become one to have the operating point determining speed ratio at its speed ratio steady operation of demarcating；Thus avoid the emergent power when the section of changing natively and interrupt and the section of changing circulating phenomenon.
3rd, when this device is in its boundary speed ratio section of changing, between the modulated part being switched and its corresponding speed governing part, action torque is zero, therefore whether the two connects at that time, not affects the force-bearing situation of each driving member of this device.Additionally, can be additionally seen from Examples below: generally, reasonably design can also make this device when the section of changing, and involved modulated part is not or the most small speed discrepancy.The most described device in its speed ratio section of changing of demarcating, the modulated part switched can non-loaded, without slippage, or the state operation of the most micro-slippage, naturally will not produce mechanical shock；Operating condition also can be looser.
In engineering reality, due to reasons such as all errors or mechanical loss, such as, hydraulic means leakage, control perform delayed, gear pair speed ratio value limited by " number of teeth is necessary for whole ", etc.；The assembly of the invention actual speed ratio when the section of changing, tends not to accurately coincide with the preferably section of changing speed ratio.But owing to stress and the rotating speed of each driving member are the modulations continuously of the speed ratio with described device, before and after work speed ratio crosses over boundary speed ratio, can't undergo mutation.Therefore, when described device the actual section of changing speed ratio with preferably the section of changing speed ratio difference is little time, the stress of its each driving member and kinestate, the most little with the difference under the preferably section of changing speed ratio；Thus be the most also acceptable.This acceptable difference degree, can be different because the purposes of described Novel speed variator is different.In other words, if in the enforcement case of certain multistage infinitely variable speed transmission, difference due to the various actual states that cause because of the actual section of changing speed ratio and the preferable section of changing speed ratio difference with ideal state, in the acceptable degree of reality application, the most described enforcement case is construed as in the sense that engineering reality, according to of the present invention, carry out the section of changing operation at boundary speed ratio.
It should be noted that class Novel speed variator as shown in Figure 2, its speed adjustable range S contains several, or at least one, its a pair feature speed ratio be in the same direction, limited, the speed ratio segmentation of nonzero value, such as Fig. 2 bIn S1.If the ratio of the feature speed ratio pair of this kind of segmentation is sufficiently bordering on 1, so that it may so that the efficiency that described device is in this segmentation is the highest.In other words, the structure of many degree train of one Novel speed variator of reasonable design, the boundary speed ratio being allowed in its ratio coverage in need has sufficiently high density, so that it may so that the efficiency of this device, reach sufficiently high level in this ratio coverage.
Fig. 3 illustrates a kind of friction type stepless speed changer that may be used for the present invention；It constitutes the two groups of planetary stepless transmission with ring cones including combining.
Existing planetary stepless transmission with ring cones, also has referred to as " planet conical ring buncher ", and its primary drive part includes speed ring, cone planetary wheel, planet carrier and two centre wheels；Described planetary gear has a cone and is positioned at the shank at the cone end；Having the driving face CONTACT WITH FRICTION of a driving face and one of centre wheel at the bottom of described cone, described planetary gear shank has the driving face CONTACT WITH FRICTION of anchor ring and another centre wheel；Speed ring is not rotatable, but can move axially along planetary gear surface, its inner surface and described planetary gear cone CONTACT WITH FRICTION.Some planetary stepless transmission with ring cones are when its speed ring moves to the planetary gear cone end, static with the centre wheel that bottom, planetary gear tapering driving face contacts；I.e., it is possible to make this centre wheel become the driving member having zero-speed.
Present invention speed regulator as shown in Figure 3, including two planetary stepless transmission with ring cones C and D combined；Wherein, buncher C includes one group of cone planetary wheel 13, and with the centre wheel 12 of its shank endless drive face CONTACT WITH FRICTION；Buncher D includes another group cone planetary wheel 17, and with the centre wheel 18 of its shank endless drive face CONTACT WITH FRICTION；Described two groups of buncher C and D, share a speed ring 14；Meanwhile, another centre wheel 16 is shared；This centre wheel 16 has two anchor rings taking turns the cone end driving face CONTACT WITH FRICTION of 13 and 17 respectively with cone planetary, and one can be with the cylinder 15 of speed ring 14 inner surface CONTACT WITH FRICTION；Described speed ring 14 is not rotatable, but can move axially along cone planetary wheel surface and cylinder 15；The axle 19 of centre wheel 18 can be sleeved on the axle 20 of centre wheel 16 with turning；When at the bottom of speed ring 14 moves to the cone of planetary gear 13, centre wheel 16 is adjusted to zero to the speed ratio of centre wheel 12；When at the bottom of speed ring 14 moves to the cone of planetary gear 17, centre wheel 16 is adjusted to zero to the speed ratio of centre wheel 18；I.e., in the present invention, centre wheel 16 is to have zero-speed speed governing part.When speed ring 14 moves on cylinder 15, centre wheel 16 is braked and static.The axle 11,19,20 of centre wheel 12,18 and 16 can be connected with many degree trains respectively as speed governing part.
Fig. 4 show a kind of Novel speed variator of the present invention, and its speed regulator is as shown in Figure 3.
The axle 11,19 and 20 of the centre wheel 12,18 and 16 of described speed regulator is as speed governing part, respectively fixedly equipped with gear 21,22 and 23, to be connected with many degree trains.Many degree train of this Novel speed variator includes one group of planet row E, breast wheel 33, driving shaft 32 and driven shaft 24；Described planet row E includes centre wheel 30, planetary gear 29, planet carrier 25 and ring gear 26；The axle of planet carrier 25 i.e. driven shaft 24；Ring gear 26 can be sleeved on driven shaft 24 with turning, and it is fixed with the external toothing 27 engaged with gear 23；Planet carrier 25 is fixed with the external toothing 28 engaged with gear 22；The axle of centre wheel 30, i.e. driving shaft 32, it is fixed with gear 31；Gear 31 engages with breast wheel 33, and breast wheel 33 engages with gear 21.
This Novel speed variator has 3 available modulated parts 28,26 and 31；Wherein, available zero velocity ratio corresponding to modulated part 31 and 28 is zero and infinitely great respectively；Modulated part 26 is in train E, independent relative to the motion of master and slave moving part, and its corresponding zero velocity ratio is the finite value I of a non-zero26, between the zero velocity ratio corresponding to available modulated part 31 and 28.
When speed ring 14 and planetary gear 13 CONTACT WITH FRICTION, planetary stepless transmission with ring cones D loses and once retrained, and speed governing part 22 floats.Now, speed governing part be gear 21 and 23.Make speed ring 14 move along planetary gear 13 conical surface, this Novel speed variator can be made to be less than and equal to I at a speed ratio26Segmentation in infinitely variable speeds, the feature speed ratio of this segmentation is to being (0, I26)。
Equally, when speed ring 14 and planetary gear 17 CONTACT WITH FRICTION, planetary stepless transmission with ring cones C loses and once retrained, and speed governing part 21 floats.Now, speed governing part be gear 22 and 23.Making speed ring 14 move along planetary gear 17 surface, this Novel speed variator can be more than and equal to I at a speed ratio26Segmentation in stepless speed regulation, the feature speed ratio of this segmentation is to being (I26, ∞).
As it has been described above, the slewing range of this Novel speed variator, contain boundary speed ratio I26, and it is divided into two at I26Adjacent speed ratio segmentation.The segmentation from which of the speed ratio of this device, crosses over boundary speed ratio I26, forward another segmentation to when going, be the zero-speed state at its speed governing part 23 and modulated part 26, switching to part 28 or 31 to complete with modulated part 31 or 28 another.During the section of changing, the speed ratio modulation of described device is continuous print, does not has the interruption that power transmits, and moment of torsion and the speed of each driving member are not the most suddenlyd change；After the section of changing, I26Also it is not changed in.
This Novel speed variator can also be at boundary speed ratio I26Steady operation, method has two.That is, when at the bottom of speed ring 14 moves to the cone of planetary gear 13 or 17, keep the position of speed ring 14, make the rotating speed of speed governing part 20 be continuously zero；Or, speed ring 14 is moved on cylinder 15, makes speed governing part 20 be braked.
In this design, speed governing part and modulated part have a connection of normality, but the constraint that speed regulator is to modulated part, floating state can be in by making different speed governing parts or releasing by state or setting up.
Fig. 5 show another Novel speed variator of the present invention, and its speed regulator is as shown in Figure 3.
On the axle 11,19 and 20 of this speed regulator centre wheel 12,18 and 16, it is fixed with gear 34,35 and 36 respectively, is connected with many degree trains as speed governing part.
Many degree train of this device includes driving shaft 46, driven shaft 37, breast wheel 47 and one group of planet row F；This planet row includes centre wheel 40, planetary gear 42, planet carrier 43 and ring gear 44；The axle of planet carrier 43 is driven shaft 37；The axle 39 of centre wheel 40 can be sleeved on axle 37 with turning, and it is fixed with and gear 36 meshed gears 38, as a modulated part；It is fixed with the external toothing 41 engaged with gear 35 on planet carrier 43, can use modulated part as another；On the axle of ring gear 44, i.e. driving shaft 46, it is fixed with gear 45 as another available modulated part；Gear 45 engages with breast wheel 47, and breast wheel 47 engages with gear 34 again.
This actuating device has 3 available modulated parts 45,41 and 38；Wherein, available zero velocity ratio corresponding to modulated part 45 and 41 is zero and infinitely great respectively；Modulated part 38 is in train E, independent relative to the motion of master and slave moving part, and its corresponding zero velocity ratio is the finite value I of a non-zero38, between the zero velocity ratio corresponding to available modulated part 45 and 41.
When speed ring 14 and planetary gear 13 CONTACT WITH FRICTION, speed governing part 35 floats.Now, speed governing part be gear 34 and 36.Make speed ring 14 move along planetary gear 13 surface, this Novel speed variator can be made to be less than and equal to I at one38Segmentation in stepless speed regulation, the feature speed ratio of this segmentation is to being (0, I38)。
Equally, when speed ring 14 and planetary gear 17 CONTACT WITH FRICTION, speed governing part 34 floats.Now, speed governing part be gear 35 and 36.Making speed ring 14 move along the surface of planetary gear 17, this Novel speed variator can be more than and equal to I at a speed ratio38Segmentation in stepless speed regulation, the feature speed ratio of this segmentation is to being (I38, ∞).
The slewing range of this Novel speed variator, contains boundary speed ratio I38, and it is divided into two at I38Adjacent speed ratio segmentation.In the segmentation from which of the speed ratio of this device, cross over boundary speed ratio I38, forward another segmentation to when going, be to complete in the zero-speed state of its speed governing part 36 and modulated part 38.During the section of changing, the speed ratio modulation of described device is continuous print；Not having the interruption that power transmits, moment of torsion and the speed of each driving member are not the most suddenlyd change；After the section of changing, I38Also it is not changed in.
By the method as earlier figures 4 shown device, it is possible to so that this Novel speed variator is at boundary speed ratio I38Steady operation.
Fig. 6 aIllustrate the Novel speed variator of a kind of present invention.This device includes a set of hydrodynamic governor and a set of spends train more.Can also have control system 48.
Described hydrodynamic governor is a set of hydraulic continuously variable transmission, including hydraulic drives 49 and 80, and pipeline loop；Described loop can include the various known function element such as various valve member and heat radiation, filtration, pressure regulation；May also include the adnexa such as donkey pump for pouring liquid or circulation.The speed governing part of that is described hydrodynamic governor of axle 62 and 76 of part 49 and 80.
Part 49 and 80 is two-way change displacement hydraulic transmission part, can work as hydraulic pump or hydraulic motor, and its liquid displacement can also modulation continuously between its forward and reverse maximum respectively.Described part 49 and 80 can be single change displacement hydraulic part, it is also possible to be the hydraulic part combination becoming discharge capacity；Such as, a kind of combination as it is shown in fig. 7, comprises a unidirectional fixed displacement hydraulic part 81, and discharge capacity can between zero and maximum the unidirectional change displacement hydraulic part 82 of stepless modulation；The maximum pump discharge of part 82 is more than the discharge capacity of part 81；One gateway of this combination and the suction inlet of part 81 and the outlet UNICOM of part 82；And the outlet of another gateway and part 81 and the suction inlet UNICOM of part 82.So, the discharge capacity that the discharge capacity of this combination is equal to hydraulic part 81 and 82 is poor, infinitely can be tuned to reverse maximum through zero delivery from a maximum flowed to；Or it is contrary.The power transmission shaft of part 81 and 82 is connected to each other, and can be used as a speed governing part.
The discharge capacity of hydraulic part 49 and 80 can link regulation.When the discharge capacity of part 49 is tuned to zero, the discharge capacity of part 80 is generally tuned to its maximum forward or backwards, and the rotating speed of its axle 76 is then tuned to zero；When the discharge capacity of part 80 is tuned to zero, the discharge capacity of part 49 is tuned to its maximum forward or backwards the most equally, and the rotating speed of its axle 62 is then tuned to zero.Therefore axle 76 and axle 62 have been zero-speed speed governing part.
On the power transmission shaft 62 of part 49 can turn equipped with gear 55 and 63；Clutch 53 is had between axle 62 and gear 55；Clutch 64 is had between axle 62 and gear 63.Gear 55 can further be provided with brake 54.
On the power transmission shaft 76 of part 80 can turn equipped with gear 77 and 74；Between axle 76 and gear 77, there is clutch 78, between axle 76 and gear 74, have clutch 72.Gear 74 can further be provided with brake 73.
Many degree train of described device includes that first planet arranges H, the second planet row G, breast wheel 65, driving shaft 79, driven shaft 68, and clutch 51 and 52.
Planet row H includes centre wheel 71, planet carrier 58, planetary gear 59 and a ring gear；Planet row G includes centre wheel 67, planet carrier, planetary gear 61 and a ring gear 66；The ring gear of planet row H is fixed into driving member 60, referred to as an output with the planet carrier of planet row G, its axle i.e. driven shaft 68；Centre wheel 71,67 coaxial 75, it is fixed with and gear 55 meshed gears 56；It is fixed with on planet carrier 58 and gear 74 meshed gears 57.
It is fixed with on driving shaft 79 and gear 77 meshed gears 50；Clutch 51 is had between the axle 70 of gear 50 or its axle 79 and ring gear 66；And there is clutch 52 between gear 56 or its axle 75.
It is fixed with on part 60 or driven shaft 68 and breast wheel 65 meshed gears 69；Breast wheel 65 also engages with gear 63.
The clutch of described Novel speed variator and brake can be operated by control system 48；This control system can be hydraulic pressure or automatically controlled etc. inhuman power-actuated, it is also possible to be manual operation.
Described Novel speed variator has forward and reverse infinitely variable speeds and three kinds of operational modes of step speed change.Fig. 6 bI.e. under these three pattern, each speed ratio segmentation or the clutch of class and the operating list of brake.Table respectively indicates the operation lattice of letter C, represents that its corresponding clutch or brake are Guan Bis；The operation lattice not having letter C then represent that its corresponding clutch or brake are to decontrol.
The forward slepless transmission pattern of described device has inventive feature, and in this mode, clutch 51 closes, and 52 decontrol, and axle 70 becomes the extension of driving shaft 79.Now, the degree of freedom of described many degree trains is 2, and has 4 available modulated parts, i.e. part 69, part 57, part 56 and part 50.Its each self-corresponding zero velocity ratio is infinitely great, I respectively1、I2With zero.I1And I2It is non-zero finite value, and I1>I2.It is divided into feature speed ratio to being (∞, I respectively by the forward speed adjustable range being described device1)、(I1, I2) and (I2, 0) three segmentations.
Described Novel speed variator is when stall start, and the discharge capacity of hydraulic part 49 is its maximum, and the discharge capacity of hydraulic part 80 is zero；Clutch 64 and 72 closes, and this device is being 69 and 57 with modulated part, and speed governing segmentation feature speed ratio is to being (∞, I1).If reducing the discharge capacity of part 49, and strengthening the reverse discharge capacity of part 80, described device i.e. ramps up.When the discharge capacity of part 49 reduces to zero, when the discharge capacity of 80 is transferred to its reverse maximum simultaneously；Described device accelerates to I1, speed governing part 76 and modulated part 57 are static.
If described device must continue to accelerate, then letting the clutch be slipped 64, close clutch 53, using 56 and 57 as using modulated part, the most described device i.e. proceeds to feature speed ratio to for (I1, I2) segmentation in speed governing.
When the speed ratio of described device is equal to I1Time, owing to the discharge capacity of hydraulic part 49 is zero, the moment of torsion on clutch 53 and 64 is necessarily zero.If also, properly select the speed ratio that gear 63 is through 65 to 69, and the speed ratio of gear 55 and 56, can make gear 63 and gear 55 is I at described device speed ratio1Time, rotating speed is equal or close.So, described device is at I1During the section of changing, clutch 53 and 64 just can non-loaded, without slip or micro-slip under conditions of clutch.The two is simultaneously or successively decontroled, and will not make the power Transmission of described device；And simultaneously or successively close, do not interfere with the moment of torsion of each driving member yet；Therefore, described device is at speed ratio I1The section of changing, operating condition can be the loosest.Additionally, gear 63,65 and 69, and the adjustment of the speed ratio of 55 and 56, to I1And I2Not impact, therefore not affect the bifurcated characteristic of described device, therefore to the efficiency characteristic of described device also essentially without having an impact.
If the most reversely strengthening the discharge capacity of part 49, and reducing the reverse discharge capacity of part 80, the most described device continues to accelerate.When its speed ratio I is tuned to I2Time, the discharge capacity of part 49 is the most maximum to it from acyclic homologically trioial；The discharge capacity of part 80 has been transferred to zero from its reverse maximum；Speed governing part 62 and modulated part 56 are static.If letting the clutch be slipped 72, and closing clutch 78, using part 50 and 56 as using modulated part, the most described actuating device i.e. enters feature speed ratio to (I again2, 0) segmentation in speed governing.If strengthening the discharge capacity of part 80 again, and reducing the reverse discharge capacity of part 49, driven shaft 68 can further speed up.
Now, if the discharge capacity ratio of part 80 is adjusted the least by part 49, the output speed of described device may transfinite.Can preset a speed limiting mechanism in the hydraulic circuit of described device or control system, make described device when clutch 53 and 78 all closes, part 49 will not be less than certain preset value to the discharge capacity ratio of part 80, thus prevents described device output speed from transfiniting.
With aforementioned at I1The situation during section of changing is the same, can properly select gear 50 and 77, and the connection speed ratio of gear 55 and 56, make described device at speed ratio I2During the section of changing, gear 77 is close or equal with the rotating speed of gear 74；So that clutch 72 and 78 also can when non-loaded, without slip or micro-slip clutch.
By said process contrary operation, the infinite speed reduction of described device can be realized.
During the above-mentioned Novel speed variator section of changing, set up or release its with the constraint suffered by modulated part, be by setting up or release being in transmission connection between speed governing part and modulated part selectively；Different from the mode in actuating device shown in Fig. 4 and Fig. 5.Boundary speed ratio I1And I2The most do not operated by the section of changing and affected.Additionally, due to its work speed ratio, always between two feature speed ratios of its each segmentation, thus without producing circulating power.If suitably selected characteristic speed ratio I1With I2Ratio so that it is be sufficiently bordering on 1, it is also possible to make described device at zero velocity ratio I1And I2Between, and there is in nearby sphere sufficiently high transmission efficiency.
Described Novel speed variator, in the zero-speed state of driven member 68, lets the clutch be slipped 51, and closes clutch 52,64 and 72, then this Novel speed variator can carry out the infinitely variable speeds inverted.Now, its with modulated part to being (57,69)；Feature speed ratio is to being (-Ir, ∞).-IrI.e. under this pattern, speed ratio when part 57 is static.
If letting the clutch be slipped 53,64,72 and 78, this Novel speed variator can also proceed to step speed change pattern easily.Have three drive shift I in this mode1、I2And I3, and reverse gear Ir.Wherein, I3Be speed ratio be the direct high of 1.Each shelves operational approach is the most at Fig. 6 bIn list.
Fig. 8 aIllustrate the Novel speed variator of another present invention.This device includes a set of hydrodynamic governor and a set of spends train more.Also can have control system 83.
Described hydrodynamic governor is a set of hydraulic continuously variable transmission, including hydraulic drives 84 and 114, and pipeline loop；Described loop can include other various known necessary adnexaes；May also include the donkey pump etc. for pouring liquid or circulation.The speed governing part of that is described hydrodynamic governor of axle 96 and 110 of part 84 and 114.
Hydraulic drives 84 and 114 is two-way change displacement hydraulic part, can work as hydraulic pump or hydraulic motor；Meanwhile, its liquid displacement can also link regulation.When the discharge capacity of part 84 is tuned to zero, the discharge capacity of part 114 is generally tuned to its maximum forward or backwards, and the rotating speed of its axle 110 is then tuned to zero；When the discharge capacity of part 114 is tuned to zero, the discharge capacity of part 84 is generally also tuned to its maximum forward or backwards, and the rotating speed of its axle 96 is then tuned to zero.Therefore axle 110 and axle 96 have been zero-speed speed governing part.
On the power transmission shaft 96 of part 84 can turn equipped with gear 90 and 97；Clutch 88 is had between axle 96 and gear 90；Clutch 98 is had between axle 96 and gear 97.Gear 90 can further be provided with brake 89.
On the power transmission shaft 110 of part 114 can turn equipped with gear 111 and 109；Between axle 110 and gear 109, there is clutch 107, between axle 110 and gear 111, have clutch 112.Gear 109 can further be provided with brake 108.
Many degree train of described Novel speed variator includes one group of planet circular system, breast wheel 99, driving shaft 113, driven shaft 102, and clutch 86 and 87.
Described planet circular system includes big centre wheel 105, little centre wheel 101, planet carrier 93 and a ring gear 95；On planet carrier 93 can turn equipped with the long planetary gear 94 being engaged with each other and short planetary gear 100；Long planetary gear 94 engages with ring gear 95 and big centre wheel 105 the most respectively；Short planetary gear 100 also engages with little centre wheel 101；The big axle 106 of centre wheel 105 and the axle of planet carrier 93 all can be set on the axle 104 of little centre wheel 101 with turning；The axle of ring gear 95 i.e. driven shaft 102.
It is fixed with on driving shaft 113 and gear 111 meshed gears 85；It is fixed with on axle 106 and gear 90 meshed gears 91；It is fixed with on planet carrier 93 and gear 109 meshed gears 92；It is fixed with on driven shaft 102 or ring gear 95 and breast wheel 99 meshed gears 103；Breast wheel 99 also engages with gear 97.
Have between clutch 86 and gear 91 or its axle 106 between gear 85 or its axle 113 and axle 104 and have clutch 87.
The clutch of described device and brake can be operated by control system 83, and this control system can be hydraulic pressure or automatically controlled etc. inhuman power-actuated, it is also possible to be manual operation.
This Novel speed variator has forward and reverse infinitely variable speeds and three kinds of operational modes of step speed change.Fig. 8 bI.e. under these three pattern, each speed ratio segmentation or the clutch of class and the operating list of brake.The operation lattice respectively indicating letter C in table represent that its corresponding clutch or brake are Guan Bis；The operation lattice not having letter C then represent that its corresponding clutch or brake are to decontrol.
The forward slepless transmission pattern of described device has inventive feature, and in this mode, clutch 86 closes, and 87 decontrol, and axle 104 becomes the extension of driving shaft 113.Now, the degree of freedom of many degree train of this actuating device is 2, and has 4 available modulated parts, i.e. gear 103, part 93, gear 91 and 85；Its each self-corresponding zero velocity ratio is infinitely great, I ' respectively1、I’2With zero.I’1And I '2It is non-zero finite value, and I '1>I’2.Therefore the forward speed adjustable range of described actuating device be divided into feature speed ratio to being respectively (∞, I '1)、(I’1, I '2) and (I '2, 0) three segmentations.
Described Novel speed variator is when stall start, and the discharge capacity of hydraulic drives 84 is its maximum, and the discharge capacity of hydraulic drives 114 is zero；Clutch 98 and 107 closes, and this device is being 103 and 93 with modulated part, speed governing segmentation feature speed ratio to being (∞, I '1).If reducing the discharge capacity of part 84, and reversely strengthening the discharge capacity of part 114, described device i.e. ramps up.When the discharge capacity of part 84 reduces to zero, when the discharge capacity of 114 is transferred to its reverse maximum simultaneously；Described device accelerates to I '1, speed governing part 110 and modulated part 93 are static.
If described device must continue to accelerate, then let the clutch be slipped 98, close clutch 88, using 93 and 91 as using modulated part, the most described actuating device i.e. proceed to feature speed ratio to (I '1, I '2) segmentation in speed governing.
If properly selecting the speed ratio that gear 97 is through 99 to 103, and the speed ratio of gear 90 and 91, can make gear 97 and 90 is I ' at described device speed ratio1Time, rotating speed is equal or close；So that described device is at I '1During the section of changing, clutch 98 and 88 can be non-loaded, without the state clutch of slip or the most micro-slip.
If the most reversely strengthening the discharge capacity of part 84, and reducing the reverse discharge capacity of part 114, the most described device continues to accelerate.When its speed ratio is tuned to I '2Time, the discharge capacity of part 84 from acyclic homologically trioial to reverse maximum；The discharge capacity of part 114 has been transferred to zero from reverse maximum；Speed governing part 96 and modulated part 91 are static.If letting the clutch be slipped again 107, and close clutch 112, using 91 and 85 as using modulated part, the most described actuating device i.e. enter feature speed ratio to (I '2, 0) segmentation in speed governing.If strengthening the discharge capacity of part 114 again, and reducing the reverse discharge capacity of part 84, driven shaft can further speed up.
With Fig. 6 aShown device is similar to, can be at Fig. 8 aPreset speed limiting mechanism in the hydraulic system of shown device or control system, prevent this device output speed from transfiniting.
With aforementioned at I '1The situation during section of changing is the same, can properly select gear 111 and 85, and the connection speed ratio of gear 109 and 92, make described device at speed ratio I '2Time, gear 109 is close or equal with the rotating speed of gear 111；So that described device is at I '2During the section of changing, clutch 107 and 112 also can when non-loaded, without slip or the most micro-slip clutch.
By said process contrary operation, the infinite speed reduction of driven shaft 102 can be realized.
Above-mentioned Novel speed variator boundary speed ratio I ' under its forward slepless transmission pattern1And I '2The most do not operated by the section of changing and affected.Suitably selected characteristic speed ratio I '1With I '2Ratio so that it is be sufficiently bordering on 1, described device can be made at zero velocity ratio I '1And I '2Between, and in nearby sphere, there is sufficiently high transmission efficiency.
In the zero-speed state of driven shaft 102, let the clutch be slipped 86, and close clutch 87,98 and 107, then this Novel speed variator can carry out inverting infinitely variable speeds.Now, its with modulated part to being (103,92)；Feature speed ratio to being (-I 'r, ∞).-I’rUnder i.e. described pattern, speed ratio when part 92 is static.
If letting the clutch be slipped 88,98,107 and 112, this Novel speed variator can also proceed to step speed change pattern easily.Have three drive shift I ' in this mode1、I’2And I '3, and reverse gear I 'r.Wherein, I '3Be speed ratio be the direct high of 1.Each shelves operational approach is the most at Fig. 8 bIn list.
Claims (8)
1. a power dividing multistage infinitely variable speed transmission, is called for short this actuating device, has input
Mechanokinetic driving link (5) and output mechanokinetic driven member (10)；It is referred to as speed regulator including one
Buncher (B), and many degree train (A) that one degree of freedom is more than 1；Described speed regulator (B) has two
Individual being connected with many degree train, the referred to as driving member of speed governing part, its speed ratio can infinitely modulation；Described
Spend train (A) more and there is at least 2 driving members independent of each other that move in this train, the most modulated part；
This actuating device, in its stepless speed regulation state, has a pair and is using modulated part with speed governing part and a pair；Institute
State and be connected with modulated part with one respectively with speed governing part；The speed ratio of speed regulator described in modulation, this biography
The speed ratio of dynamic device the most correspondingly changes；This actuating device is when its arbitrary available modulated part is static
Speed ratio, is referred to as this and can use the zero velocity ratio corresponding to modulated part；Wherein, with corresponding to modulated part
Zero velocity ratio, is also called this with the feature speed ratio corresponding to modulated part；It is characterized in that:
This actuating device, in its a kind of infinitely variable speeds state, keeps its master and slave moving part constant, and they are many simultaneously
Annexation between degree train and frame and between many internal each driving members of degree train the most all keeps not
During change, it is spent train (A) more and has at least 3 available modulated parts (6,8,9)；These 3 can use
Modulated part corresponds respectively to 3 zero velocity ratios of same transmission direction, different numerical value；
In described 3 zero velocity ratios, including at least the zero velocity ratio (I of a non-zero finite valuey), claim
For boundary speed ratio；Zero velocity ratio described in other two is called the first speed ratio (Ix) and the second speed ratio (Iz)；
And the first speed ratio (Ix) less than boundary speed ratio (Iy)；Second speed ratio (Iz) more than boundary speed ratio (Iy)；
This actuating device has a continuous print speed adjustable range (S), and this speed adjustable range (S) includes at least two
With described boundary speed ratio (Iy) it is segmentation boundary, adjacent to each other, it is called the first segmentation (S1) with second
Segmentation (S2)；Described first segmentation (S1Speed ratio in) is less than boundary speed ratio (Iy), using modulated part its a pair
Corresponding feature speed ratio is boundary speed ratio (I respectivelyy) and the first speed ratio (Ix)；And described second segmentation
(S2Speed ratio in) is more than boundary speed ratio (Iy), with the feature speed ratio corresponding to modulated part it is being respectively for its a pair
Boundary speed ratio (Iy) and the second speed ratio (Iz)；
Two of described speed regulator (B) are with in speed governing part, and at least one is to have zero-speed speed governing part (7)；
Described boundary speed ratio (IyModulated part (8) corresponding to) is in the used time, and the speed governing part connected is to have zero-speed
Speed governing part；
When being worked in a described segmentation by this actuating device a pair is switching to its phase with modulated part
A pair of adjacent segmentation is with the boundary speed ratio (I after modulated part, between this two adjacent sectionaly) will not change.
2. a power dividing multistage infinitely variable speed transmission as claimed in claim 1, its feature
It is:
In its described speed adjustable range (S), at least contain its a pair feature speed ratio be in the same direction, limited, non-
The speed ratio segmentation of null value.
3. a power dividing multistage infinitely variable speed transmission as claimed in claim 1, its feature
It is:
Described speed regulator is a set of hydraulic continuously variable transmission, including two two-way change displacement hydraulic transmission parts
(49,80), are called first, second hydraulic drives；Its axle (62,76), be called first,
Second axle, is the speed governing part of described speed regulator；
The discharge capacity of described first, second hydraulic drives (49,80) can regulate in linkage；When the first liquid
When the discharge capacity of pressure driving member (49) is tuned to zero, the discharge capacity of the second hydraulic drives (80) is just being tuned to it
To or reverse maximum, its axle, the rotating speed of the i.e. second axle (76) is then tuned to zero；When the second hydraulic pressure
When the discharge capacity of driving member (80) is tuned to zero, the discharge capacity of the first hydraulic drives (49) is to be tuned to it equally
Maximum forward or backwards, its axle, the rotating speed of the i.e. first axle (62) is then tuned to zero；
The axle of described first hydraulic drives (49), on the i.e. first axle (62) can turn equipped with the first gear (55)
And second gear (63)；First clutch (53) is had between the first axle (62) and the first gear (55)；First
Second clutch (64) is had between axle (62) and the second gear (63)；
The axle of the second hydraulic drives (80), on the i.e. second axle (76) can turn equipped with the 3rd gear (77) and
4th gear (74)；The 3rd clutch (78) is had between the second axle (76) and the 3rd gear (77)；At the second axle
(76) and there is the 4th clutch (72) between the 4th gear (74)；
Many degree train of described power dividing multistage infinitely variable speed transmission include first planet row (H),
Second planet row (G), breast wheel (65), driving shaft (79) and driven shaft (68)；
In described first planet row (H) includes centre wheel (71), planet carrier (58), planetary gear (59) and one
Gear ring；Second planet row (G) include another centre wheel (67), another planet carrier, another planetary gear (61) and
Another ring gear (66)；The ring gear of first planet row (H) and the planet carrier of the second planet row (G) connect firmly into
One driving member (60), referred to as output, its axle i.e. driven shaft (68)；The centre wheel (71) of first planet row
Coaxial with the centre wheel of the second planet row (67) (75), it is fixed with the 5th engaged with the first gear (55)
Gear (56)；It is fixed with, on the planet carrier (58) of first planet row, the 6th gear engaged with the 4th gear (74)
(57)；The axle (70) of the ring gear (66) of the second planet row is described driving shaft (79) or its extension；Described
Being fixedly connected with the 7th gear (50) on driving shaft (79), the 7th gear (50) engages with the 3rd gear (77)；Institute
State and on driven shaft (68) or output, be fixedly connected with eighth gear (69), this eighth gear (69) and described breast wheel
(65) engagement；Described breast wheel (65) also engages with the second gear (63).
4. a power dividing multistage infinitely variable speed transmission as claimed in claim 1, its feature
It is:
Described speed regulator is a set of hydraulic continuously variable transmission, including two two-way change displacement hydraulic transmission parts
(84,114), are called first, second hydraulic drives；Its axle (96,110) is called first,
Second axle, is the speed governing part of described speed regulator；
The discharge capacity of described first, second hydraulic drives (84,114) can regulate in linkage；When the first liquid
When the discharge capacity of pressure driving member (84) is tuned to zero, the discharge capacity of the second hydraulic drives (114) is just being tuned to it
To or reverse maximum, its axle, the rotating speed of the most described second axle (110) is then tuned to zero；When second
When the discharge capacity of hydraulic drives (114) is tuned to zero, the discharge capacity of the first hydraulic drives (84) is also tuned to
Its maximum forward or backwards, its axle, the rotating speed of the most described first axle (96) is then tuned to zero；
The axle of described first hydraulic drives (84), on the i.e. first axle (96) can turn equipped with the first gear
And the second gear (97) (90)；First clutch (88) is had between the first axle (96) and the first gear (90)；
Second clutch (98) is had between the first axle (96) and the second gear (97)；
The axle of described second hydraulic drives (114), on the i.e. second axle (110) can turn equipped with the 3rd gear
And the 4th gear (111) (109)；The 3rd clutch is had between the second axle (110) and the 3rd gear (109)
(107)；The 4th clutch (112) is had between the second axle (110) and the 4th gear (111)；
Many degree train of described power dividing multistage stepless speed change device includes one group of planet circular system, breast wheel
(99), driving shaft (113), driven shaft (102)；
Described planet circular system includes big centre wheel (105), little centre wheel (101), planet carrier (93) and one
Ring gear (95)；On this planet carrier (93) can turn equipped with the long planetary gear (94) being engaged with each other and short planetary gear
(100)；This long planetary gear (94) engages with described ring gear (95) and described big centre wheel (105) the most respectively；
This short planetary gear (100) also engages with described little centre wheel (101)；The axle (106) of described big centre wheel (105)
And the axle of described planet carrier (93) all can be set on described little center-wheel arbor (104) with turning；Described ring gear
(95) axle i.e. driven shaft (102)；
The 5th gear (85) engaged with the 4th gear (111) it is fixed with on described driving shaft (113)；Described greatly
The 6th gear (91) engaged with the first gear (90) it is fixed with on the axle (106) of centre wheel (105)；Described
The 7th gear (92) engaged with the 3rd gear (109) it is fixed with on planet carrier (93)；Described driven shaft (102)
Or on ring gear (95), it is fixed with the eighth gear (103) engaged with described breast wheel (99)；Described breast wheel
(99) also engage with the second gear (97)；Described little center-wheel arbor (104) is driving shaft (113) or its extension.
5. a speed regulator for power dividing multistage infinitely variable speed transmission described in claim 1, its
Feature is:
Including two planetary stepless transmission with ring cones combined (C, D)；One buncher
(C) the first cone planetary wheel (13) and the first centre wheel with its shank endless drive face CONTACT WITH FRICTION is included
(12)；Another buncher (D) includes the second cone planetary wheel (17) and rubs with its shank endless drive face
Wipe second centre wheel (18) of contact；Described two groups of bunchers (C, D), share a speed ring
(14)；Meanwhile, another centre wheel (16) of referred to as the 3rd centre wheel is shared；3rd centre wheel (16)
There are two bottom, tapering driving face frictions taking turns (13,17) respectively with described first, second cone planetary
The anchor ring of contact, and one can be with the cylinder (15) of speed ring (14) inner surface CONTACT WITH FRICTION；Described speed governing
Ring (14) is not rotatable, but can move axially along described cone planetary wheel surface and described cylinder；In second
The axle (19) of heart wheel (18) can be sleeved on the axle (20) of the 3rd centre wheel (16) with turning；When speed ring (14) moves
When moving at the bottom of the cone of the first cone planetary wheel (13), the 3rd centre wheel (16) speed ratio to the first centre wheel (12)
It is adjusted to zero；When at the bottom of speed ring (14) moves to the cone of the second cone planetary wheel (17), the 3rd center
Wheel (16) is adjusted to zero to the speed ratio of the second centre wheel (18)；When speed ring (14) moves to cylinder (15)
Time upper, the 3rd centre wheel (16) is braked and static.
6. a power dividing multistage infinitely variable speed transmission as claimed in claim 1, its feature
It is:
Described speed regulator is the speed regulator described in claim 5；Its first centre wheel (12), second center
On the axle (11,19,20) of wheel (18) and the 3rd centre wheel (16), respectively fixedly equipped with first, second,
3rd gear (21), (22), (23)；
Described many degree trains include one group of planet row (E), breast wheel (33), driving shaft (32) and driven shaft (24)；
Described planet row (E) includes the 4th centre wheel (30), planetary gear (29), planet carrier (25) and ring gear (26)；
The axle of this planet carrier (25) is driven shaft (24)；This ring gear (26) can be sleeved on this driven shaft (24) with turning
On, it is fixed with the external toothing (27) engaged with described 3rd gear (23)；This planet carrier (25) is fixed with
The external toothing (28) engaged with described second gear (22)；The axle i.e. driving shaft of described 4th centre wheel (30)
(32), it is fixed with the 4th gear (31)；4th gear (31) engages with described breast wheel (33), should
Breast wheel (33) also engages with described first gear (21).
7. a power dividing multistage infinitely variable speed transmission as claimed in claim 1, its feature
It is:
Described speed regulator is the speed regulator described in claim 5；Described first, second, third centre wheel
On the axle (11,19,20) of (12,18,16), respectively fixedly equipped with first, second, third gear (34,
35、36)；
Described many degree trains include driving shaft (46), driven shaft (37), breast wheel (47) and one group of planet row (F)；
This planet row includes the 4th centre wheel (40), planetary gear (42), planet carrier (43) and ring gear (44)；This row
The axle of carrier (43) is described driven shaft (37)；The axle (39) of the 4th centre wheel (40) can overlap with turning
It is contained on this driven shaft (37), it is fixed with and described 3rd gear (36) meshed gears (38)；This row
The external toothing (41) engaged with described second gear (35) it is fixed with in carrier (43)；The axle of this ring gear (44),
The most described driving shaft (46), it is fixed with the 4th gear (45)；4th gear (45) and described breast wheel
(47) engagement, this breast wheel (47) engages with described first gear (34) again.
8. power dividing multistage infinitely variable speed transmission as claimed in claim 1 so that it is work speed
Than (I) from the speed ratio segmentation of former place, cross over described boundary speed ratio (Iy), stepless modulation is divided to its adjacent speed ratio
The method of section, is characterized in that:
(1) by described boundary speed ratio (IyIt is being tuned to zero with the rotating speed of speed governing part (7) corresponding to), is making this
The speed ratio stepless modulation of actuating device is to described boundary speed ratio；
(2) speed ratio at this actuating device is equal to this boundary speed ratio (Iy) time, release speed regulator another
With the constraint to its modulated part of the speed governing part；
(3) if this actuating device needs at speed ratio less than described boundary speed ratio (Iy) segmentation (S1Continue in)
Speed governing, then another speed governing part setting up speed regulator is less than another feature speed ratio of boundary speed ratio to this segmentation,
The most described first speed ratio (IxThe constraint of the modulated part (6) corresponding to)；If described device needs to be more than at speed ratio
Described boundary speed ratio (Iy) segmentation (S2Continue speed governing in), then set up another speed governing part of speed regulator to this point
Section is more than another feature speed ratio of boundary speed ratio, the most described second speed ratio (IzModulated part (9) corresponding to)
Constraint；
(4) continue the speed ratio of speed regulator described in modulation, this actuating device can be made in the segmentation newly proceeded to
Interior infinitely variable speeds；
The order of above-listed step (2) and (3) can exchange, it is also possible to carry out simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310504504.2A CN103591230B (en) | 2013-10-23 | 2013-10-23 | Power dividing multistage infinitely variable speed transmission and change phase method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504504.2A CN103591230B (en) | 2013-10-23 | 2013-10-23 | Power dividing multistage infinitely variable speed transmission and change phase method |
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| Publication Number | Publication Date |
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| CN103591230A CN103591230A (en) | 2014-02-19 |
| CN103591230B true CN103591230B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310504504.2A Active CN103591230B (en) | 2013-10-23 | 2013-10-23 | Power dividing multistage infinitely variable speed transmission and change phase method |
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| CN108775389B (en) * | 2018-07-23 | 2020-01-21 | 燕山大学 | Hydraulic mechanical stepless transmission target section pressure state prediction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107664A (en) * | 1987-11-03 | 1988-12-14 | 罗明远 | Power-diversion stepiess variable drive system |
| DE10358280A1 (en) * | 2002-12-27 | 2004-07-08 | Aisin AW Co., Ltd., Anjo | Planetary gear train for automatic transmission has hub for friction engagement element with slotted section with circumferential length the same or longer than planet wheel diameter |
| CN101688609A (en) * | 2007-02-16 | 2010-03-31 | 瀑溪技术公司 | Unlimited speed changing type stepless speed variator, stepless speed variator and method, assembly, sub-component and parts |
| CN103322144A (en) * | 2012-03-18 | 2013-09-25 | 李青山 | Planetary cone-ring transmission |
-
2013
- 2013-10-23 CN CN201310504504.2A patent/CN103591230B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107664A (en) * | 1987-11-03 | 1988-12-14 | 罗明远 | Power-diversion stepiess variable drive system |
| DE10358280A1 (en) * | 2002-12-27 | 2004-07-08 | Aisin AW Co., Ltd., Anjo | Planetary gear train for automatic transmission has hub for friction engagement element with slotted section with circumferential length the same or longer than planet wheel diameter |
| CN101688609A (en) * | 2007-02-16 | 2010-03-31 | 瀑溪技术公司 | Unlimited speed changing type stepless speed variator, stepless speed variator and method, assembly, sub-component and parts |
| CN103322144A (en) * | 2012-03-18 | 2013-09-25 | 李青山 | Planetary cone-ring transmission |
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|---|---|
| CN103591230A (en) | 2014-02-19 |
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