CN104948683B - A kind of center steering variable speed drive - Google Patents
A kind of center steering variable speed drive Download PDFInfo
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- CN104948683B CN104948683B CN201410112364.9A CN201410112364A CN104948683B CN 104948683 B CN104948683 B CN 104948683B CN 201410112364 A CN201410112364 A CN 201410112364A CN 104948683 B CN104948683 B CN 104948683B
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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
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
- F16H3/666—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another with compound planetary gear units, e.g. two intermeshing orbital gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
- B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
- B62D11/12—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears using separate change-speed gearings
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2012—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with four sets of orbital gears
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2051—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with eight engaging means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The present invention provides a kind of centers to turn to variable speed drive, including input gear, four planet rows, two clutches and six brakes.Center of the invention, which turns to variable speed drive, can realize large, medium and small three regulation relative steerings, three regulation relative steerings can be additionally provided, four regulation relative steerings that are complete, all having for each forward gear are constituted together with original minimum regulation relative steering, improve Vehicular turn performance, and structure is simple, cost is relatively low, convenient for the repacking of existing side gearbox endless-track vehicle.
Description
Technical field
The invention belongs to system of vehicle transmission technical field, it is related to a kind of steering transmission linkage, more particularly to a kind of for improving
The center of the steering behaviour of existing double side gearbox endless-track vehicle turns to variable speed drive.
Background technique
In the development course of high maneuverability endless-track vehicle power train, there is a kind of unique Double-side variable speed and turned to
Power train, its working principles are as follows: double side gearbox hangs identical gear when straight；When steering, low speed side side gearbox reduces by one
Gear；Side gearbox hangs braking and keeps off the pivot stud, it can be achieved that ρ=0.5；When side gearbox hangs 1 gear, other side gearbox is hung
It reverses gear, then the zero turn radius in situ of -0.5 < ρ < 0.5 can be achieved.The side driving hole of such double side gearbox from vehicle body side is inside
It is packed into car body, is connected by driving front with engine, although its steering behaviour is bad, makes power transmission cabin that there is pole
High power density, length over ends of body shorten nearly one meter, can effectively reduce contour of the vehicle profile, and reduction is found and hits general
Rate, therefore be widely applied without hesitation on the high maneuverability endless-track vehicle of Russia.
Since nearly half a century, there are mainly two types of model double side gearbox enormous amount high maneuverability endless-track vehicle
The diesel engine of upper use, one of model matching maximum speed 2300rpm uses, have seven forward gears, one reverse gear and
The gas turbine of one braking gear, another model matching maximum speed 20000rpm uses, and there are four forward gear, one to fall for tool
Gear and a braking gear.The gear speed ratio of existing seven gears side gearbox is successively are as follows: 8.1714/4.4/3.4856/2.7867/
2.0274/1.4667/1.000.The regulation relative steering ρ of various gearsn n-1Successively are as follows: 0.5/1.667/4.3119/
4.4873/3.170/3.1158/2.6427.The gear speed ratio of existing four gears side gearbox is successively are as follows: 4.761/2.160/
1.460/1.000, the regulation relative steering ρ of various gearsn n-1Successively are as follows: 0.5/1.43/2.58/2.67.The regulation respectively kept off
Turning radius should be gradually increased as gear increases, but above data shows the middle height of the double side gearbox of two kinds of models
Gear regulation turning radius is less than normal and unbearably practical, and too small regulation turning radius will lead to the vehicle run at high speed and generate violent side
It slides or topples to side.In addition, vehicle enters from straight and turns to and to when regulation turning radius transition, it must manipulate and rub accordingly
It wipes element and is in slipping state, therefore can not achieve accurate steering, also due to transit time is too long and influences friction elements
Service life.
The gear of existing four gear or seven gear side gearboxes divides and gear speed ratio is mainly according to meeting straight performance requirement
Be arranged, steering behaviour demand can only suitably be taken into account, but actually use experience have shown that, this to pilot control propose compared with
High requirement, too small regulation turning radius makes driver have to carefully steering vehicle turning, to avoid generation
It breaks away.Improve following (the Liu Xiuji.Design of Multi- of project and measures of existing seven gears side gearbox steering characteristic
Speed Planetary Transmission.Beijing.Beijing Institute of Technology Press,
1992): to high gear increase it is some be exclusively used in turning to when side reduction of speed gear increase turning radius, retain original 1,2,4,6 and 7 and keep off
It is kept off as straight, 3 and 5 gear of original improves the regulation turning radius of 6 gear of 4 gear of original and original, but the regulation of 7 gear of original as gear is turned to
Turning radius is still smaller unbearably practical.
Russ P RU2412847C1 proposes a kind of for improving the steering for using the endless-track vehicle of double side gearbox
The hydraulic transmission of performance comprising З К steering mechanism, six clutches and two brakes, hydraulic pump motor unit and
Multiple groups transmission gear, the power of engine are divided into two-way, are directly entered З К steering mechanism all the way, and another way enters hydraulic pump horse
It enters back into after up to unit in З К steering mechanism and converges with preceding power all the way, form differential, power in З К steering mechanism's output end
Two sides side gearbox is respectively driven after output.The hydraulic transmission improves steering behaviour, but hydraulic pump motor unit makes
Increased costs are more.
Summary of the invention
The purpose of the invention is to overcome the disadvantages of the prior art mentioned above, provide that a kind of structure is simple and cost is relatively low
Center turn to variable speed drive, for improving the steering behaviour of existing double side gearbox endless-track vehicle.
In order to achieve the above objectives, specific technical solution is as follows:
A kind of center steering variable speed drive, comprising:
Input gear；
Left steering gear, comprising: the first planet row is three element planet rows, including the first sun gear, the first tooth
Circle and first planet carrier, first gear ring are connected by first planet carrier with the first sun gear；Second planet row is quaternary
Part compound planetary row, including the second largest sun gear, the second small sun gear, the second gear ring and the second planet carrier, it is described it is second largest too
Sun wheel is connected with the second small sun gear and the second gear ring respectively by the second planet carrier；First brake is used to brake described
First sun gear；Second brake is used to brake second gear ring；It is small to be used to brake described second for third brake
Sun gear；First clutch is used to connect first gear ring and first sun gear；Described in first gear ring is used as
The input terminal of left steering gear, first sun gear are connect with second planet carrier, the first planet carrier and institute
The second largest sun gear connection is stated, the second largest sun gear turns to left output end and a left side for variable speed drive as the center
Side gearbox is connected；
Right turn gear, comprising: third planet row is three element planet rows, including third sun gear, third tooth
Circle and third planet carrier, the third gear ring are connected by third planet carrier with third sun gear；Fourth planet row, is quaternary
Part compound planetary row, including the fourth-largest sun gear, the 4th small sun gear, the 4th gear ring and fourth line carrier, it is described it is the fourth-largest too
Sun wheel is connected with the 4th small sun gear and the 4th gear ring respectively by fourth line carrier；4th brake is used to brake described
Third sun gear；5th brake is used to brake the 4th gear ring；It is small to be used to brake the described 4th for 6th brake
Sun gear；Second clutch is used to connect the third gear ring and the third sun gear；Described in the third gear ring is used as
The input terminal of right turn gear, the third sun gear are connect with the fourth line carrier, the third planet carrier and institute
The fourth-largest sun gear connection is stated, the fourth-largest sun gear turns to right output end and the right side of variable speed drive as the center
Side gearbox is connected；And
The input that the input terminal of the left steering gear passes through the input gear and the right turn gear
End connection.
Preferably, the left steering gear and the right turn gear are in mirror surface relative to the input gear
It is arranged symmetrically.
Preferably, when second brake engagement, the first clutch, first brake and the third system
Dynamic device separation, the left steering gear realize that a left side 1 is kept off；
When first brake engages, the first clutch, the second brake and the third brake divide
From the left steering gear realizes that a left side 2 is kept off；
When the third brake engages, the first clutch, first brake and the second brake divide
From the left steering gear realizes that a left side 3 is kept off；
When the first clutch engages, first brake, the second brake and the third brake divide
From the left steering gear realizes that a left side 4 is kept off；
When the 5th brake engages, the second clutch, the 4th brake and the 6th brake divide
From the right turn gear realizes that the right side 1 is kept off；
When the 4th brake engages, the second clutch, the 5th brake and the 6th brake divide
From the right turn gear realizes that the right side 2 is kept off；
When the 6th brake engages, the second clutch, the 4th brake and the 5th brake divide
From the right turn gear realizes that the right side 3 is kept off；And
When the second clutch engages, the 4th brake, the 5th brake and the 6th brake divide
From the right turn gear realizes that the right side 4 is kept off.
Preferably, the speed ratio of left 1 gear or right 1 gear provides relative steering setting according to third；
The speed ratio of left 2 gear or right 2 gear is according to the second regulation relative steering setting；
The speed ratio of left 3 gear or right 3 gear is according to the first regulation relative steering setting；
And the relationship of gear speed ratio i and regulation relative steering ρ are as follows:
Preferably, when the left steering gear hangs left 4 gear, the right turn gear hangs right 4 gear
When, vehicle realizes straight；
When the left steering gear hangs left 3 gear, when the right turn gear hangs described right 4 gear, vehicle
Realize the left steering of the first regulation relative steering；
When the left steering gear hangs left 2 gear, when the right turn gear hangs described right 4 gear, vehicle
Realize the left steering of the second regulation relative steering；
When the left steering gear hangs left 1 gear, when the right turn gear hangs described right 4 gear, vehicle
Realize that the third provides the left steering of relative steering；
When the left steering gear hangs left 4 gear, when the right turn gear hangs described right 3 gear, vehicle
Realize the right turn of the first regulation relative steering；
When the left steering gear hangs left 4 gear, when the right turn gear hangs described right 2 gear, vehicle
Realize the right turn of the second regulation relative steering；And
When the left steering gear hangs left 4 gear, when the right turn gear hangs described right 1 gear, vehicle
Realize that the third provides the right turn of relative steering.
It preferably, further include fluid torque-converter, it includes pump impeller, turbine and lockup clutches；The input gear and institute
State pump impeller Joint, the input that the input terminal of the left steering gear passes through the turbine and the right turn gear
End is connected.
Compared with the existing technology, technical solution of the present invention can realize large, medium and small three regulation relative steerings.When
The center turns to variable speed drive and matches existing side gearbox in use, three regulation relative steerings can be additionally provided,
With original minimum regulation relative steering constitute together it is complete, all have four regulations for each forward gear and turn to half
Diameter significantly improves Vehicular turn performance.Center steering variable speed drive structure is simple, and cost is relatively low, convenient for existing
The repacking of side gearbox endless-track vehicle.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the powertrain involved in the specific embodiment of the invention including center steering variable speed drive
The structural schematic diagram of system；
Fig. 2 is the structural schematic diagram that center involved in the first specific embodiment of the invention turns to variable speed drive；
Fig. 3 is the structural schematic diagram that center involved in the second specific embodiment of the invention turns to variable speed drive；
Fig. 4 is the structural schematic diagram of existing four gears side gearbox；
Fig. 5 is the structural schematic diagram of existing seven gears side gearbox.
In figure: 100,100OL, 100OR are that center turns to variable speed drive and its left and right output end respectively；10 be defeated
Enter gear；30L, 30R are respectively left steering gear and right turn gear；1,1S, 1R, 1C are the first planet respectively
Row, the first sun gear, the first gear ring and first planet carrier；2,2S1,2S2,2R, 2C are the second planet row, the second largest sun respectively
Wheel, the second small sun gear, the second gear ring and the second planet carrier；3,3S, 3R, 3C are third planet row, third sun gear, respectively
Three gear rings and third planet carrier；4,4S1,4S2,4R, 4C be respectively fourth planet row, the fourth-largest sun gear, the 4th small sun gear,
4th gear ring and fourth line carrier；C1, C2, B1, B2, B3, B4, B5, B6 are first clutch, second clutch, first respectively
Brake, second brake, third brake, the 4th brake, the 5th brake and the 6th brake；7,71,72,73 difference
It is fluid torque-converter, pump impeller, turbine and lockup clutch；8 be engine.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Specific explaination is done to the embodiment of the present invention below with reference to attached drawing.
First specific embodiment:
Fig. 1 is the powertrain involved in the specific embodiment of the invention including center steering variable speed drive
The structural schematic diagram of system, Fig. 2 are that the structure of steering variable speed drive in center involved in the first specific embodiment of the invention is shown
It is intended to.Referring to Figures 1 and 2, center turns to variable speed drive 100, comprising: input gear 10, before the power of engine 8 passes through
Transmission (not shown) is transmitted to thereon；Left steering gear 30L includes: the first planet row 1, is three element planet rows, packet
Include the first sun gear 1S, the first gear ring 1R and first planet carrier 1C；Second planet row 2 is arranged for four element compound planetaries, including
The second largest sun gear 2S1, the second small sun gear 2S2, the second gear ring 2R and the second planet carrier 2C；First brake B1 is for braking
First sun gear 1S, second brake B2 are for braking the second gear ring 2R, and third brake B3 is for braking the second small sun gear
2S2, first clutch C1 are for connecting the first gear ring 1R and the first sun gear 1S；First gear ring 1R is as left steering gear
The input terminal of 30L, the first sun gear 1S are connected with the second planet carrier 2C, first planet carrier 1C and the second largest sun gear 2S1 phase
Connection, the second largest sun gear 2S1 turn to the left output end 100L and sinistral gearbox 9L phase of variable speed drive 100 as center
Connection；Right turn gear 30R includes: third planet row 3, is three element planet rows, including third sun gear 3S, third
Gear ring 3R and third planet carrier 3C；Fourth planet row 4, arranges for four element compound planetaries, including the fourth-largest sun gear 4S1, the
Four small sun gear 4S2, the 4th gear ring 4R and fourth line carrier 4C；4th brake B4 is for braking third sun gear 3S, and the 5th
Brake B5 is used for braking the 4th gear ring 4R, the 6th brake B6 for braking the 4th small sun gear 4S2, second clutch C2
In connection third gear ring 3R and third sun gear 3S；Input terminal of the third gear ring 3R as right turn gear 30R, third is too
Sun wheel 3S is connected with fourth line carrier 4C, and third planet carrier 3C is connected with the fourth-largest sun gear 4S1, the fourth-largest sun gear
4S1 is connected as the right output end 100R that center turns to variable speed drive 100 with dextral gearbox 9R；And left steering becomes
The input terminal of fast mechanism 30L is connected by input gear 10 with the input terminal of right turn gear 30R.
Table 1 is the left and right friction elements state table for turning to gear.Turning to gear 30L and 30R respectively has
Multiple gears, i.e. 1 gear of a left side, 2 gear of a left side, 3 gear of a left side and a left side 4 are kept off, and 1 gear of the right side, 2 gear of the right side, 3 gear of the right side and the right side 4 are kept off.Work as second brake
B2 engagement, first clutch C1, the first brake B1 and third brake B3 separation, left steering gear 30L realize a left side 1
Gear；When the first brake B1 is engaged, first clutch C1, second brake B2 and third brake B3 are separated, left steering speed change
Mechanism 30L realizes that a left side 2 is kept off；When third brake B3 is engaged, first clutch C1, the first brake B1 and second brake B2 divide
From left steering gear 30L realizes that a left side 3 is kept off；When first clutch C1 engage, the first brake B1, second brake B2 and
Third brake B3 separation, left steering gear 30L realize that a left side 4 is kept off；As first clutch C1, the first brake B1, second
Brake B2 and third brake B3 separation, left steering gear 30L realize neutral gear；When the 5th brake B5 engage, second
Clutch C2, the 4th brake B4 and the 6th brake B6 separation, right turn gear 30R realize that the right side 1 is kept off；When the 4th braking
Device B4 engagement, second clutch C2, the 5th brake B5 and the 6th brake B6 separation, right turn gear 30R realize the right side 2
Gear；When the 6th brake B6 is engaged, second clutch C2, the 4th brake B4 and the 5th brake B5 are separated, right turn speed change
Mechanism realizes that the right side 3 is kept off；When second clutch C2 is engaged, the 4th brake B4, the 5th brake B5 and the 6th brake B6 are separated,
Right turn gear 30R realizes that the right side 4 is kept off；And work as second clutch C2, the 4th brake B4, the 5th brake B5 and the 6th
Brake B6 separation, right turn gear 30R realize neutral gear.
It also lists in table 1 and to be acquired respectively according to the left and right planet row kinematical equation for turning to gear 30L, 30R
Gear speed ratio, wherein k1、k21With k22、k3、k41With k42It is the structure feature ginseng of the first, second, third and fourth planet row respectively
Number, k1It is the gear ratio of the first gear ring 1R and the first sun gear 1S, k21It is the number of teeth of the second gear ring 2R Yu the second largest sun gear 2S1
Than k22It is the gear ratio of the second gear ring 2R and the second small sun gear 2S2, k3It is the number of teeth of third gear ring 3R Yu third sun gear 3S
Than k41It is the gear ratio of the 4th gear ring 4R Yu the fourth-largest sun gear 4S1, k42It is the 4th gear ring 4R and the 4th small sun gear 4S2
Gear ratio.Symmetrical, selection k is exported when in order to guarantee left and right turn1=k3、k21=k41With k22=k42。
Table 1: the left and right friction elements state table (× separation, zero engagement) for turning to gear
For reference table 1 it is found that if the speed ratio that side turns to gear is 1, the speed ratio i of the other side is two sides speed ratio
Ratio, determine the size of regulation relative steering.It therefore, can by selected regulation relative steering according to formula (1)
Determine each gear speed ratio, wherein the speed ratio of 1 gear of 1 gear of a left side or the right side provides relative steering ρ according to third3Setting, 2 gear of a left side or the right side 2
The speed ratio of gear is according to the second regulation relative steering ρ2The speed ratio of setting, 3 gear of 3 gear of a left side or the right side is turned to according to the first regulation is opposite
Radius ρ1Setting.First, second, and third regulation relative steering is sequentially reduced, i.e. ρ1>ρ2>ρ3。
It is kept off when left steering gear 30L hangs a left side 4, when the right turn gear 30R extension right side 4 is kept off, vehicle realizes straight；When
Left steering gear 30L hangs a left side 3 and keeps off, and when the right turn gear 30R extension right side 4 is kept off, vehicle realizes that the first regulation turns to relatively
Radius ρ1Left steering；It is kept off when left steering gear 30L hangs a left side 2, when the right turn gear 30R extension right side 4 is kept off, vehicle is realized
Second regulation relative steering ρ2Left steering；It is kept off when left steering gear 30L hangs a left side 1, right turn gear 30R is hung
When the right side 4 is kept off, vehicle realizes that third provides relative steering ρ3Left steering；It is kept off when left steering gear 30L hangs a left side 4, it is right
When turning to gear 30R extension 3 gear of the right side, vehicle realizes the first regulation relative steering ρ1Right turn；When left steering speed change
Mechanism 30L hangs a left side 4 and keeps off, and when the right turn gear 30R extension right side 2 is kept off, vehicle realizes the second regulation relative steering ρ2The right side
It turns to；It is kept off when left steering gear 30L hangs a left side 4, when the right turn gear 30R extension right side 1 is kept off, vehicle realizes that third provides phase
To turning radius ρ3Right turn.
Table 2 show right turn gear 30R hang the right side 4 keep off, left steering gear 30L hang a left side 1 gear, a left side 2 gear and a left side 3
Large, medium and small regulation relative steering ρ when gear1、ρ2And ρ3.According to the distribution of ρ, suitable k is selected1、k21With k22Number
Value.With reference to the numberical range of the common regulation relative steering of conventional high maneuverability endless-track vehicle, ρ is selected1=8~9, ρ2=5~6
And ρ3=3~4, then i1=1.1176~1.1333, i2=1.1818~1.2222, i3=1.2857~1.4.K is selected after tentative calculation1=
3.0, k21=1.5 and k22=2.5.The specific value of the gear speed ratio and regulation relative steering that calculate accordingly is shown in Table 3.
Table 2: gear speed ratio and regulation relative steering
Table 3: the specific value of gear speed ratio and regulation relative steering
| Left steering speed change gear | Gear speed ratio in | Provide relative steering ρn |
| A left side 1 is kept off | 1.333 | 3.5 |
| A left side 2 is kept off | 1.200 | 5.5 |
| A left side 3 is kept off | 1.125 | 8.5 |
Although respectively there are four operating elements by left steering gear 30L and right turn gear 30R, turn to every time
When, only it need to separate an operating element and engage another operating element, therefore manipulation and control is very simple, without any inconvenience
Place.Steering wheel or control stick provide steering angle signal, the electronic controller of transmission device signal and other sensors accordingly
Signal is together accurately controlled steering shift process, controls corresponding operating element and its degree of engagement, realizes expectation
Turning radius.
The regulation relative steering ρ of existing four gears side gearbox various gearsn n-1Successively are as follows: 0.5/1.43/2.58/
2.67.Therefore, if also wanting to continue to reduce turning radius after reaching third regulation turning radius, inside side gearbox reduces by one
Gear, can be obtained minimum regulation relative steering.Center turns to variable speed drive 100, side gearbox 9L and 9R are total to
Under same-action, available four regulations relative steering, and have for each forward gear, row can be better meet
Sail steering demand.
Center, which turns to variable speed drive 100, can match existing four gears side gearbox use as shown in Figure 4, certainly
Existing seven gears side gearbox as shown in Figure 5 can be matched to use.If it is desire to reducing a kind of model of side gearbox, then can examine
Consider on the basis of existing four gears side gearbox, suitably modified center matches torque adaptability after turning to variable speed drive 100
The lesser diesel engine of coefficient uses.
Second specific embodiment:
Consider that diesel engine also matches existing four gears side gearbox due to the above reasons,.But due to diesel engine
Torque adaptive coefficient only has 1.6, and gas turbine reaches 2.5, therefore it must match at least five forward position, or
A fluid torque-converter is added to expand revolving speed-torque range of diesel engine.
Fig. 3 is the structural schematic diagram that center involved in the second specific embodiment of the invention turns to variable speed drive.Ginseng
According to Fig. 3, center turns to variable speed drive 100, comprising: input gear 10；Fluid torque-converter 7, it includes pump impellers 71, turbine 72
With lockup clutch 73；Left steering gear 30L includes: the first planet row 1, is three element planet rows, including first too
Sun wheel 1S, the first gear ring 1R and first planet carrier 1C；Second planet row 2, for four element compound planetaries arrange, including it is second largest too
Sun wheel 2S1, the second small sun gear 2S2, the second gear ring 2R and the second planet carrier 2C；First brake B1 is for braking first sun
Taking turns 1S, second brake B2 is for braking the second gear ring 2R, and third brake B3 is for braking the second small sun gear 2S2, and first
Clutch C1 is for connecting the first gear ring 1R and the first sun gear 1S；First gear ring 1R is defeated as left steering gear 30L's
Entering end, the first sun gear 1S is connected with the second planet carrier 2C, and first planet carrier 1C is connected with the second largest sun gear 2S1, the
Two big sun gear 2S1 are connected as the left output end 100L that center turns to variable speed drive 100 with sinistral gearbox 9L；It is right
Turning to gear 30R includes: third planet row 3, is three element planet rows, including third sun gear 3S, third gear ring 3R
With third planet carrier 3C；Fourth planet row 4, arranges for four element compound planetaries, including the fourth-largest sun gear 4S1, the 4th small too
Sun wheel 4S2, the 4th gear ring 4R and fourth line carrier 4C；4th brake B4 is for braking third sun gear 3S, the 5th brake
B5 is for braking the 4th gear ring 4R, and the 6th brake B6 is for braking the 4th small sun gear 4S2, and second clutch C2 is for connecting
Third gear ring 3R and third sun gear 3S；Input terminal of the third gear ring 3R as right turn gear 30R, third sun gear 3S
It is connected with fourth line carrier 4C, third planet carrier 3C is connected with the fourth-largest sun gear 4S1, the fourth-largest sun gear 4S1 conduct
The right output end 100R that center turns to variable speed drive 100 is connected with dextral gearbox 9R；Input gear 10 and pump impeller 71
The input terminal of Joint, left steering gear 30L is connected by turbine 72 with the input terminal of right turn gear 30R.
The gear principle that center turns to variable speed drive 100 is identical as the first specific embodiment, repeats no more in this.
The specific embodiment of the invention center turn to variable speed drive, including input gear, four planet rows, two from
Clutch and four brakes are, it can be achieved that large, medium and small three regulations relative steering.Become when the transmission device matches existing side
Fast case is in use, three regulation relative steerings and original minimum regulation relative steering structure together can be additionally provided
At it is complete, four regulation relative steerings are all had for each forward gear, significantly improve Vehicular turn performance.It should
Transmission structures are simple, and cost is relatively low, convenient for the repacking of existing side gearbox endless-track vehicle.
Specific embodiments of the present invention are described in detail above, but it is only used as example, the present invention is not intended to limit
In particular embodiments described above.To those skilled in the art, it any equivalent modifications to the practical progress and replaces
In generation, is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and repair
Change, all should be contained within the scope of the invention.
Claims (6)
1. a kind of center turns to variable speed drive, the first planet row is three element planet rows, including the first sun gear, the
One gear ring and first planet carrier, first gear ring are connected by first planet carrier with the first sun gear；Second planet row is
Four element compound planetaries row, including the second largest sun gear, the second small sun gear, the second gear ring and the second planet carrier, described second
Big sun gear is connected with the second small sun gear and the second gear ring respectively by the second planet carrier；First brake is used to brake
First sun gear；Second brake is used to brake second gear ring；It is characterised by comprising:
Input gear；
Left steering gear, comprising: third brake is used to brake second small sun gear；First clutch is used
In connection first gear ring and first sun gear；Input of first gear ring as the left steering gear
End, first sun gear are connect with second planet carrier, and the first planet carrier is connect with the second largest sun gear, institute
The left output end that the second largest sun gear turns to variable speed drive as the center is stated to be connected with sinistral gearbox；
Right turn gear, comprising: third planet row, be three element planet rows, including third sun gear, third gear ring and
Third planet carrier, the third gear ring are connected by third planet carrier with third sun gear；Fourth planet row is multiple for four elements
Formula planet row, including the fourth-largest sun gear, the 4th small sun gear, the 4th gear ring and fourth line carrier, the fourth-largest sun gear
It is connected respectively with the 4th small sun gear and the 4th gear ring by fourth line carrier；4th brake is used to brake the third
Sun gear；5th brake is used to brake the 4th gear ring；6th brake is used to brake the 4th Sunny
Wheel；Second clutch is used to connect the third gear ring and the third sun gear；The third gear ring is as the right-hand rotation
To the input terminal of gear, the third sun gear is connect with the fourth line carrier, the third planet carrier and described the
Four big sun gear connections, the fourth-largest sun gear turns to the right output end of variable speed drive as the center and right side becomes
Fast case is connected；And
The input terminal of the left steering gear is connected by the input terminal of the input gear and the right turn gear
It connects.
2. it is according to claim 1 center turn to variable speed drive, which is characterized in that the left steering gear and
The right turn gear is arranged symmetrically relative to the input gear in mirror surface.
3. center according to claim 2 turns to variable speed drive, which is characterized in that when the second brake connects
It closes, the first clutch, first brake and third brake separation, the left steering gear are realized left
1 gear；
When first brake engages, the first clutch, the second brake and the third brake are separated, institute
It states left steering gear and realizes that a left side 2 is kept off；
When the third brake engages, the first clutch, first brake and the second brake are separated, institute
It states left steering gear and realizes that a left side 3 is kept off；
When the first clutch engages, first brake, the second brake and the third brake are separated, institute
It states left steering gear and realizes that a left side 4 is kept off；
When the 5th brake engages, the second clutch, the 4th brake and the 6th brake are separated, institute
It states right turn gear and realizes that the right side 1 is kept off；
When the 4th brake engages, the second clutch, the 5th brake and the 6th brake are separated, institute
It states right turn gear and realizes that the right side 2 is kept off；
When the 6th brake engages, the second clutch, the 4th brake and the 5th brake are separated, institute
It states right turn gear and realizes that the right side 3 is kept off；And
When the second clutch engages, the 4th brake, the 5th brake and the 6th brake are separated, institute
It states right turn gear and realizes that the right side 4 is kept off.
4. center according to claim 3 turns to variable speed drive, which is characterized in that left 1 gear or right 1 gear
Speed ratio according to third provide relative steering setting；The speed ratio of left 2 gear or right 2 gear is opposite according to the second regulation
Turning radius setting；The speed ratio of left 3 gear or right 3 gear is according to the first regulation relative steering setting；And gear speed
Than the relationship of i and regulation relative steering ρ are as follows:
5. center according to claim 4 turns to variable speed drive, which is characterized in that when the left steering gear
Left 4 gear is hung, when the right turn gear hangs described right 4 gear, vehicle realizes straight；
When the left steering gear hangs left 3 gear, when the right turn gear hangs described right 4 gear, vehicle is realized
The left steering of the first regulation relative steering；
When the left steering gear hangs left 2 gear, when the right turn gear hangs described right 4 gear, vehicle is realized
The left steering of the second regulation relative steering；
When the left steering gear hangs left 1 gear, when the right turn gear hangs described right 4 gear, vehicle is realized
The third provides the left steering of relative steering；
When the left steering gear hangs left 4 gear, when the right turn gear hangs described right 3 gear, vehicle is realized
The right turn of the first regulation relative steering；
When the left steering gear hangs left 4 gear, when the right turn gear hangs described right 2 gear, vehicle is realized
The right turn of the second regulation relative steering；And
When the left steering gear hangs left 4 gear, when the right turn gear hangs described right 1 gear, vehicle is realized
The third provides the right turn of relative steering.
6. center according to claim 1 turns to variable speed drive, which is characterized in that it further include fluid torque-converter,
Include pump impeller, turbine and lockup clutch；The input gear and the pump impeller Joint, the left steering gear it is defeated
Enter end to be connected by the turbine with the input terminal of the right turn gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112364.9A CN104948683B (en) | 2014-03-24 | 2014-03-24 | A kind of center steering variable speed drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112364.9A CN104948683B (en) | 2014-03-24 | 2014-03-24 | A kind of center steering variable speed drive |
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| Publication Number | Publication Date |
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| CN104948683A CN104948683A (en) | 2015-09-30 |
| CN104948683B true CN104948683B (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410112364.9A Active CN104948683B (en) | 2014-03-24 | 2014-03-24 | A kind of center steering variable speed drive |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105480069B (en) * | 2015-12-30 | 2018-07-31 | 北京新能源汽车股份有限公司 | Dynamical system and vehicle with it |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040106490A1 (en) * | 2002-12-03 | 2004-06-03 | Jong Sool Park | Six-speed powertrain of an automatic transmission of a vehicle |
| US20060264129A1 (en) * | 2005-05-17 | 2006-11-23 | Honda Motor Co., Ltd. | Outboard motor control system |
| CN102483137A (en) * | 2009-05-26 | 2012-05-30 | 卞东奂 | Multistage transmission |
| CN103640468A (en) * | 2013-12-20 | 2014-03-19 | 上海中科深江电动车辆有限公司 | Side gearbox and electric transmission device provided with same |
| CN103640471A (en) * | 2013-12-20 | 2014-03-19 | 上海中科深江电动车辆有限公司 | Side gearbox with two forward gears and two reverse gears and corresponding electric transmission device |
-
2014
- 2014-03-24 CN CN201410112364.9A patent/CN104948683B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040106490A1 (en) * | 2002-12-03 | 2004-06-03 | Jong Sool Park | Six-speed powertrain of an automatic transmission of a vehicle |
| US20060264129A1 (en) * | 2005-05-17 | 2006-11-23 | Honda Motor Co., Ltd. | Outboard motor control system |
| CN102483137A (en) * | 2009-05-26 | 2012-05-30 | 卞东奂 | Multistage transmission |
| CN103640468A (en) * | 2013-12-20 | 2014-03-19 | 上海中科深江电动车辆有限公司 | Side gearbox and electric transmission device provided with same |
| CN103640471A (en) * | 2013-12-20 | 2014-03-19 | 上海中科深江电动车辆有限公司 | Side gearbox with two forward gears and two reverse gears and corresponding electric transmission device |
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| Publication number | Publication date |
|---|---|
| CN104948683A (en) | 2015-09-30 |
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