CN108591410A - A kind of four-part form Hydromechanical Stepless Transmission device for endless-track vehicle - Google Patents
A kind of four-part form Hydromechanical Stepless Transmission device for endless-track vehicle Download PDFInfo
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- CN108591410A CN108591410A CN201810379637.4A CN201810379637A CN108591410A CN 108591410 A CN108591410 A CN 108591410A CN 201810379637 A CN201810379637 A CN 201810379637A CN 108591410 A CN108591410 A CN 108591410A
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- hydraulic
- spur gear
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- gear
- planet row
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Classifications
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
- F16H2047/045—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion the fluid gearing comprising a plurality of pumps or motors
Abstract
The invention discloses a kind of four-part form Hydromechanical Stepless Transmission devices for endless-track vehicle, including：Planet coupling mechanism, Hydraulic Adjustable Speed component change a section control member, hydraulic stepless turning member, fluid power deceleration component；Planet coupling mechanism includes four planet rows；Hydraulic Adjustable Speed component includes the hydraulic speed regulation loop of variable pump and fixed displacement motor composition；It includes four clutches and a brake to change section control member；Hydraulic stepless turning member comprising variable pumps and the hydraulic speed regulation loop of fixed displacement motor composition；Fluid power deceleration component includes fluid coupling.The present invention uses the form of the compound stepless transmission of hydraulic machinery, it is fallen by before planet coupling mechanism realization 41, zero turn radius and emergency machine are kept off, vehicle high-speed operating mode can also utilize fluid coupling to realize that fluid power slows down, the demand that disclosure satisfy that vehicle high-speed is cross-country and flexibly turn to, greatly improves the dynamic property and economy of vehicle.
Description
Technical field
The invention belongs to endless-track vehicle drive technology field, be related to a kind of four-part form hydraulic machinery for endless-track vehicle without
Gear stage.
Background technology
Transmission system is the core system that vehicle power transmits, dynamic property of the performance to entire vehicle, fuel economy
Deng all having significant effect.Although hydraulic machine comprehensive actuator has a wide range of applications on endless-track vehicle, its
In specific gear, governor control characteristics is to determine that road surface complicated and changeable leads to engine by the governor control characteristics of engine
Load acute variation, hydraulic machine comprehensive actuator need frequently to enter the work of fluid power operating mode using fluid torque-converter, cause
Entire transmission system transmission efficiency is not too much ideal, and fuel economy cannot be guaranteed.Existing hydraulic machine synthesis
Transmission device brings prodigious shift shock by there is several transmission ratios of grade to realize speed change when shift, largely effects on
The life and reliability of shift control element and complete machine associated mechanical structure, the service life of hydraulic machine comprehensive actuator also tend to
It is limited by the service life of friction plate.Although the stepless transmission of hydrostatic can facilitate realization stepless speed regulation, engine is made often to work in economic turn
Fast section, but the efficiency of the hydraulic pump motor enclosed speed control loop used in Hydrostatic drive is relatively low, cannot meet creeper truck
A wide range of speed governing becomes the demand turned round.Multistage Hydro-Mechanical Variable Transmission system has mechanically operated high efficiency and hydraulic pressure concurrently
The high performance two-fold advantage of stepless speed regulation can realize controllable variable speed, it is more to complexity to meet vehicle in a wider scope
The requirement for becoming road conditions, improves intelligence and the automatization level of vehicle, is provided for vehicle economy and dynamic property Resolving probiems
Good solution.Multisection type hydraulic mechanical composite transmission may be used on transmission power hundreds of kilowatts even a megawatts with
On various large-scale farm machineries, engineering machinery, on the heavy vehicle of particular demands such as armored vehicle, before having a vast market
Scape.
The presently disclosed document of multisection type Hydrostatic-mechanical Transmission or patent are chiefly used in loading machine, tractor, environmental sanitation machinery
Deng for the also fewer of high speed tracked vehicle.
Invention content
(1) goal of the invention
The purpose of the present invention is：A kind of four-part form Hydromechanical Stepless Transmission device for endless-track vehicle is provided, it can
It is cross-country and the needs of flexibly turn to meet vehicle high-speed, improves the dynamic property and economy of vehicle.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of stepless biographies of four-part form hydraulic machinery for endless-track vehicle
Dynamic device comprising：Planet coupling mechanism, Hydraulic Adjustable Speed component change a section control member, hydraulic stepless turning member, and fluid power subtracts
Fast component；Wherein, planet coupling mechanism includes：First planet row P1, the second planet row P2, third planet row P3, fourth planet
Arrange P4；Hydraulic Adjustable Speed component such as includes at first hydraulic speed regulation loop of the first variable pump and the first fixed displacement motor composition of discharge capacities
PM1；It includes first clutch Cl, second clutch C2, third clutch C3, the 4th clutch C4, braking to change a section control member
Device B1；Hydraulic stepless turning member include etc. discharge capacities the second variable pump and the second fixed displacement motor composition the second Hydraulic Adjustable Speed return
Road PM2；Fluid power deceleration component includes fluid coupling HC；
Connection relation between each component is：The input shaft first bevel gear 1 of transmission device is transmitted dynamic from engine
Power provides power for whole device, and both sides conflux planetary gear set collects vehicle straight power flow and steering power stream outputs power；
The gear ring of the sun gear and the second planet row P2 of first clutch C1 the second planet rows of connection P2, second clutch C2 connections second
The frame of gear ring and third planet the row P3 of planet row P2, the sun gear and third of third clutch C3 the second planet rows of connection P2
The frame of planet row P3, the gear ring and the second planet row P2 of the 4th clutch C4 connections the 5th spur gear 7 and the first planet row P1
Frame；The gear ring of brake B1 braking third planet rows P3；The one end fluid coupling HC connects gear box casing, and the other end connects
Meet transmission main shaft S1；Gear ring, fluid coupling HC and the both sides bus-bar that transmission main shaft S1 arranges P4 with fourth planet are connected, both sides
Bus-bar is located at the left and right sides of transmission device, is connected with the output shaft of transmission device, realizes the output of power；Planet coupling machine
The output power of structure is transmitted to both sides conflux planetary gear set gear ring by transmission main shaft S1；The mechanical output of planet coupling mechanism input
Stream amounts to 3 pairs of teeth by first bevel gear 1 and second bevel gear 2, third spur gear 5 and the 4th spur gear 6, the 5th spur gear 7
Wheel transmits, and realizes that engine input speed is reversed；The hydraulic power stream of planet coupling mechanism input passes through first bevel gear 1 and the
Two bevel gears 2, the first spur gear 3 and the second spur gear 4, the 6th spur gear 8 and the 7th spur gear 9, the 8th spur gear 10 total 4
Gear is transmitted, in the case of not considering the first hydraulic speed regulation loop PM1 speed governing, realizes that engine input speed is in the same direction；It turns to
Power flow passes through first bevel gear 1, second bevel gear 2, the first spur gear 3, the second spur gear 4, the second hydraulic speed regulation loop
PM2, the 9th spur gear 11, the tenth spur gear 12, which are transmitted to, turns to zero axle S2, and then power is respectively through the 11st spur gear 13, the
12 spur gears 14 are transmitted to transmission device side bus-bar, straight through the 13rd spur gear 15, the 14th spur gear the 16, the 15th
Gear 17 is transmitted to transmission device other side bus-bar.
Wherein, in the first hydraulic speed regulation loop PM1 and the second hydraulic speed regulation loop PM2, the first variable pump and second
Variable pump configuration is the same, and the first fixed displacement motor and the second fixed displacement motor structure are the same, the maximum pump discharge of the first, second variable pump and
The discharge capacity of first, second fixed displacement motor is identical.
Wherein, when the vehicle advances, the drive shift of the continuously variable transmittion includes a pure hydraulic pressure section and three hydraulic pressure
Robotic segments：Pure hydraulic section, hydraulic machinery active section 1, hydraulic machinery active section 2 and hydraulic machinery active section 3.
Wherein, when the first clutch Cl, brake B1 engagements, pure hydraulic section, pump motor discharge capacity ratio are in
From 0, gradually reversely variable completes starting boost phase to -1；Power passes through successively after the input first bevel gear 1 input
Second bevel gear 2, the first spur gear 3, the second spur gear 4 are transmitted to the first hydraulic speed regulation loop PM1, the first hydraulic speed regulation loop
Mechanical output circulation is hydraulic power stream by PM1, through the first fixed displacement motor output shaft and the 6th spur gear 8, the 7th spur gear 9,
8th spur gear 10 is transmitted to the sun gear of the first planet row P1, and power is through the first planet row P1, the second planet row P2, later
Three planet row P3 and fourth planet row P4 are transmitted to transmission main shaft S1, then output power through both sides bus-bar.
Wherein, when the 4th clutch C4, brake B1 engagements, hydraulic machinery active section 1, pump motor discharge capacity are in
Than from -1, gradually to 1, realization vehicle accelerates reversed variable；Power is after the first bevel gear 1, second bevel gear 2 input, work(
Rate is divided into two-way, wherein mechanical output flows through third spur gear 5, the 4th spur gear 6, the 5th spur gear 7 and is transferred to the 4th all the way
Clutch C4, another way power flows through the first spur gear 3, the second spur gear 4 is transmitted to the first hydraulic speed regulation loop PM1 and switchs to liquid
Power flow is pressed, the first planet row P1 is transmitted to through motor output shaft and the 6th spur gear 8, the 7th spur gear 9, the 8th spur gear 10
Sun gear；Mechanical output stream and hydraulic power stream are in the first planet row P1 confluences, and power is through the first planet row P1, second later
Planet row P2, third planet row P3 and fourth planet row P4 are transmitted to transmission main shaft S1, then output power through both sides bus-bar.
Wherein, the hydraulic machinery active section 2 respectively in connection with operating element be second clutch C2 and the 4th clutch
C4, the variable ratio of hydraulic speed regulation loop from 1 to -1, hydraulic machinery active section 3 respectively in connection with operating element be third clutch
C3 and the 4th clutch C4, the variable ratio of hydraulic speed regulation loop is from -1 to 1, power transmission line and 1 phase of hydraulic machinery active section
Than hydraulic machinery power flow is after the first planet row P1 confluences, 3 power of hydraulic machinery active section 2 and hydraulic machinery active section
Pass through the second planet row P2 and fourth planet row P4, without third planet arrange P3.
Wherein, when the vehicle reverse, first clutch Cl, brake B1 engagements, system are in pure hydraulic section, pump
Motor displacement ratio realizes vehicle sternway from 0 gradual positive variable to 1；Power from the input first bevel gear 1 input after, according to
It is secondary by second bevel gear 2, the first spur gear 3, the second spur gear 4, the first hydraulic speed regulation loop PM1 and the 6th spur gear 8, the
Seven spur gears 9, the 8th spur gear 10 are transmitted to the sun gear of the first planet row P1, and power is through the first planet row P1, second later
Planet row P2, third planet row P3 and fourth planet row P4 are transmitted to transmission main shaft S1, then output power through both sides bus-bar.
Wherein, when the vehicle center turns to, third clutch C3 and brake B1 are combined, and realize third planet row's P3 locks
Extremely, and then transmission main shaft braking and the braking of both sides bus-bar gear ring are realized；Steering power stream is bored by first bevel gear 1, second
Gear 2 and the first spur gear 3, the second spur gear 4 are transmitted in the second hydraulic speed regulation loop PM2, the discharge capacity point of the second variable pump
Do not realize that motor output shaft is rotated forward or inverted from 0 to 1 either from 0 to -1, power is straight through the 9th spur gear the 11, the tenth later
Gear 12, which is transmitted to, turns to zero axle S2, and then a part of power is respectively through the 11st spur gear 13, the 12nd spur gear 14, confluence
It is identical with motor output shaft rotary speed direction to arrange sun gear rotary speed direction, realizes side bus-bar frame output shaft rotating forward or anti-
Turn, another part power is through the 13rd spur gear 15, the 14th spur gear 16, the 15th spur gear 17, bus-bar sun rotation
Fast direction and motor output shaft rotary speed direction are on the contrary, realizing this side bus-bar frame output shaft reversion or rotating forward；Power passes
It after being delivered to both sides driving wheel, is rotated in the forward direction through vehicle side driving wheel, other side driving wheel reversely rotates, and realizes several around vehicle
What zero turn radius.
Wherein, the vehicle is advanced when turning to, the second hydraulic speed regulation loop PM2 the second variable pumpage respectively from 0
Either realize that bus-bar output rotating speed in side increases either reduction other side output rotating speed and reduces or increase from 0 to 1 to -1,
Its variable quantity absolute value is equal；In both sides, bus-bar collects respectively for straight power flow and steering power stream, after converge through both sides
The frame output shaft of row exports.
Wherein, when the vehicle high-speed traveling is slowed down, the oil-filled work of fluid coupling HC, a part of power of transmission main shaft
It is converted into the heat of high-speed stirring oil by fluid coupling, realizes the conversion of braking energy, and then car speed is reduced；When
When the hydraulic pump motor of transmission device breaks down, first clutch Cl, the 4th clutch C4 and brake B1 are combined, and realize machine
Tool is kept off, and realizes starting and the low-speed forward of vehicle.
(3) advantageous effect
The four-part form Hydromechanical Stepless Transmission device for endless-track vehicle that above-mentioned technical proposal is provided, using hydraulic pressure
The form of the compound stepless transmission of machinery is fallen by before planet coupling mechanism realization 41, zero turn radius and emergency machine are kept off, homodyne speed
It turns to and realizes that vehicle can realize that continuous stepless turns in each speed governing section under two kinds of operating modes of advance and retroversion, vehicle is high
Fast operating mode can also utilize the demand that fluid coupling realizes that fluid power slows down, and disclosure satisfy that vehicle high-speed is cross-country and flexibly turns to,
Greatly improve the dynamic property and economy of vehicle.
Description of the drawings
Fig. 1 is that four-part form Hydro-Mechanical Variable Transmission device is driven schematic diagram；
Fig. 2 be speed and pump motor PM1 variables than relation schematic diagram.
Specific implementation mode
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the tool of the present invention
Body embodiment is described in further detail.
Four-part form Hydro-Mechanical Variable Transmission device is used on endless-track vehicle in the present embodiment, such as each portions Fig. 1
Shown in part connection relationship diagram, which includes：Planet coupling mechanism, Hydraulic Adjustable Speed component change a section control member, hydraulic pressure without
Grade turning member, fluid power deceleration component；Wherein, planet coupling mechanism includes：First planet row P1, the second planet row P2, third
Planet row P3, fourth planet arrange P4；Hydraulic Adjustable Speed component includes etc. that the first variable pump of discharge capacities and the first fixed displacement motor form
First hydraulic speed regulation loop PM1；It includes first clutch Cl, second clutch C2, third clutch C3, to change a section control member
Four clutch C4, brake B1；Hydraulic stepless turning member include etc. discharge capacities the second variable pump and the second fixed displacement motor composition
The second hydraulic speed regulation loop PM2；Fluid power deceleration component includes fluid coupling HC.
Wherein, in the first hydraulic speed regulation loop PM1 and the second hydraulic speed regulation loop PM2, the first variable pump and the second variable
Pump configuration is the same, and the first fixed displacement motor and the second fixed displacement motor structure are the same, the maximum pump discharge of the first, second variable pump and
One, the discharge capacity of the second fixed displacement motor is identical.
Connection relation between each component of transmission device is：The input first bevel gear 1 of transmission device, which is transmitted to come from, starts
The power of machine, to provide power for whole device, both sides conflux planetary gear set collects vehicle straight power flow and steering power stream
It outputs power.The gear ring of the sun gear and the second planet row P2 of first clutch C1 the second planet rows of connection P2, the second clutch
The frame of gear ring and third planet the row P3 of device C2 the second planet rows of connection P2, third clutch C3 the second planet rows of connection P2's
The frame of sun gear and third planet row P3, the gear ring of the 5th spur gear 7 of the 4th clutch C4 connections and the first planet row P1 and
The frame of second planet row P2；The gear ring of brake B1 braking third planet rows P3；The one end fluid coupling HC connects gearbox
Shell, the other end connect transmission main shaft S1；Transmission main shaft S1 and gear ring, fluid coupling HC and the both sides of fourth planet row P4 are converged
Stream row is connected, and both sides bus-bar is located at the left and right sides of transmission device, is connected with the output shaft of transmission device, realizes the defeated of power
Go out；The output power of planet coupling mechanism is transmitted to both sides conflux planetary gear set gear ring by transmission main shaft S1；Planet coupling mechanism
The mechanical output stream of input is straight by first bevel gear 1 and second bevel gear 2, third spur gear 5 and the 4th spur gear the 6, the 5th
The total 3 pairs of gears of gear 7 transmit, and realize that engine input speed is reversed；The hydraulic power stream of planet coupling mechanism input passes through
First bevel gear 1 and second bevel gear 2, the first spur gear 3 and the second spur gear 4, the 6th spur gear 8 and the 7th spur gear 9,
The total 4 pairs of gears of eight spur gears 10 transmit, and in the case of not considering the first hydraulic speed regulation loop PM1 speed governing, realize that engine is defeated
It is in the same direction to enter rotating speed.Steering power stream passes through first bevel gear 1, second bevel gear 2, the first spur gear 3, the second spur gear 4, second
Hydraulic speed regulation loop PM2, the 9th spur gear 11, the tenth spur gear 12, which are transmitted to, turns to zero axle S2, and then power is respectively through the tenth
One spur gear 13, the 12nd spur gear 14 are transmitted to transmission device side bus-bar, through the 13rd spur gear 15, the 14th straight-tooth
The 16, the 15th spur gear 17 of wheel is transmitted to transmission device other side bus-bar.
Fig. 2 be speed and pump motor variable than relation schematic diagram, table 1 is that four-part form Hydro-Mechanical Variable Transmission changes
Section manipulates table.Wherein, when vehicle advances, the drive shift of the continuously variable transmittion includes a pure hydraulic pressure section and three hydraulic machineries
Section：When the first clutch Cl, brake B1 engagements, it is in pure hydraulic section, pump motor discharge capacity ratio (variable pumpage
The ratio between with motor displacement) from 0 gradually reversed variable complete starting boost phase to -1；Power is from the input first bevel gear 1
After input, passing through second bevel gear 2 successively, the first spur gear 3, the second spur gear 4 are transmitted to the first hydraulic speed regulation loop PM1,
Mechanical output circulation is hydraulic power stream by the first hydraulic speed regulation loop PM1, through motor output shaft and the 6th spur gear the 8, the 7th
Spur gear 9, the 8th spur gear 10 are transmitted to the sun gear of the first planet row P1, and power is through the first planet row P1, the second row later
Star row P2, third planet row P3 and fourth planet row P4 are transmitted to transmission main shaft S1, then output power through both sides bus-bar.When
When the 4th clutch C4, brake B1 engagements, it is in hydraulic machinery active section 1, pump motor discharge capacity ratio is gradually reversed from -1
Variable realizes that vehicle accelerates to 1；For power after the first bevel gear 1, second bevel gear 2 input, power is divided into two-way,
In all the way mechanical output flow through third spur gear 5, the 4th spur gear 6, the 5th spur gear 7 and be transferred to the 4th clutch C4, it is another
Road power flows through the first spur gear 3, the second spur gear 4 is transmitted to the first hydraulic speed regulation loop PM1 and switchs to hydraulic power stream, through horse
The sun gear of the first planet row P1 is transmitted to up to output shaft and the 6th spur gear 8, the 7th spur gear 9, the 8th spur gear 10.Machinery
Power flow and hydraulic power stream are in the first planet row P1 confluences, and power is through the first planet row P1, the second planet row P2, third later
Planet row P3 and fourth planet row P4 are transmitted to transmission main shaft S1, then output power through both sides bus-bar.Hydraulic machinery works
Section 2 respectively in connection with operating element be second clutch C2 and the 4th clutch C4, the variable ratio of hydraulic speed regulation loop from 1 to-
1, hydraulic machinery active section 3 respectively in connection with operating element be third clutch C3 and the 4th clutch C4, hydraulic speed regulation loop
Variable ratio from -1 to 1, power transmission line is compared with hydraulic machinery active section 1, and hydraulic machinery power flow is in the first planet row
After P1 confluences, 3 power of hydraulic machinery active section 2 and hydraulic machinery active section passes through the second planet row P2 and fourth line
Star arranges P4, and P3 is arranged without third planet.
Table 1
By reasonably selecting the structural parameters of all parts, the characterisitic parameter of the first planet row P1 is 3, the second planet row P2
Characterisitic parameter be 2, third planet arrange P3 characterisitic parameter be 3, fourth planet arrange P4 characterisitic parameter be 2.Advance four sections
It is to wait than relationship, common ratio 2 to change section speed ratio.The vehicle speed range of corresponding advance first segment：0~10.46km/h advances two sections
Vehicle speed range is 10.46~20.89km/h, and the vehicle speed range of ahead three section is 20.89~41.83km/h, the vehicle of four sections of advance
Speed ranging from 41.83~83km/h.
When vehicle reverse, first clutch Cl, brake B1 engagements, system are in pure hydraulic section, pump motor discharge capacity
Than (the ratio between variable pumpage and motor displacement) from 0 gradual positive variable to 1, vehicle sternway is realized；Power is from the input the
After the input of one bevel gear 1, pass through second bevel gear 2, the first spur gear 3, the second spur gear 4, the first hydraulic speed regulation loop successively
PM1 and the 6th spur gear 8, the 7th spur gear 9, the 8th spur gear 10 are transmitted to the sun gear of the first planet row P1, later power
It is transmitted to transmission main shaft S1 through the first planet row P1, the second planet row P2, third planet row P3 and fourth planet row P4, then through two
Side bus-bar outputs power, fast range:0~-10.46km/h.
When vehicle center turns to, third clutch C3 and brake B1 are combined, and realize that third planet row P3 is locked, Jin Ershi
Existing transmission main shaft braking and the braking of both sides bus-bar gear ring.Steering power stream passes through first bevel gear 1, second bevel gear 2 and
One spur gear 3, the second spur gear 4 are transmitted in the second hydraulic speed regulation loop PM2, and the discharge capacity of the second variable pump is respectively from 0 to -1
Either realize that motor output shaft is rotated forward or inverted from 0 to 1, power is transmitted through the 9th spur gear 11, the tenth spur gear 12 later
To zero axle S2 is turned to, then a part of power is respectively through the 11st spur gear 13, the 12nd spur gear 14, bus-bar sun rotation
Fast direction is identical with motor output shaft rotary speed direction, realizes that side bus-bar frame output shaft is rotated forward or inverted, another part
Power is through the 13rd spur gear 15, the 14th spur gear 16, the 15th spur gear 17, bus-bar sun gear rotary speed direction and motor
Output shaft rotary speed direction is on the contrary, realizing this side bus-bar frame output shaft reversion or rotating forward.Power is transmitted to both sides actively
It after wheel, is rotated in the forward direction through vehicle side driving wheel, other side driving wheel reversely rotates, and realizes and is turned to around vehicle geometric center.
Vehicle is advanced when turning to, wherein the control law of four speed governing sections and the controls of combination are constant, power flows through
The gear and planet row crossed also do not change, and straight power flow is finally all transmitted on transmission main shaft S1.When traveling turns to,
The second variable pumpage of second hydraulic speed regulation loop PM2 realizes that bus-bar output in side turns from 0 to -1 or from 0 to 1 respectively
Speed, which increases, either to be reduced the reduction of other side output rotating speed or increases, and variable quantity absolute value is equal.Straight power flow and steering
In both sides, bus-bar collects power flow respectively, after through both sides bus-bar frame output shaft output.Vehicle realizes that homodyne speed turns
To, the stepless variation uniform, controllable of turning radius, steering behaviour is preferable.
When vehicle high-speed traveling is slowed down, a part of power of the oil-filled work of fluid coupling HC, transmission main shaft passes through fluid power
Coupler is converted into the heat of high-speed stirring oil, realizes the conversion of braking energy, and then car speed is reduced.Vehicle hydraulic subtracts
Speed is mainly used for high speed traveling vehicle kinetic energy and switchs to brake thermal energy as early as possible, improves braking effect, reduces the damage to mechanical brake
Evil, improves its functional reliability and service life.
When the hydraulic pump motor of transmission device breaks down, can be kept off with Emergency use machinery.First clutch Cl, the 4th
Clutch C4 and brake B1 are combined, and are realized machinery gear, can be realized starting and the low-speed forward of vehicle.The vehicle of emergency machine gear
Speed ranging from 0~21km/h.
The characterisitic parameter of the first planet row P1 is 3, and the characterisitic parameter of the second planet row P2 is 2, and third planet arranges P3
Characterisitic parameter be 3, fourth planet arrange P4 characterisitic parameter be 2.Section speed ratio of changing of four sections of advance is to wait than relationship, common ratio 2.
By the present invention it can be seen from above-mentioned technical proposal based on four planet rows, one group of liquid for being used for speed governing is integrated
Press pump motor, four clutches and a brake, the pure hydraulic pressure starting operating mode of reasonable link, divide square remittance fast hydraulic machinery speed governing work
Condition, zero turn radius operating mode, pure hydraulic pressure sternway operating mode integrate the one group of hydraulic pump motor and fluid coupling for steering, realize
Hydraulic stepless turns to and fluid power slows down.The use that entire transmission device realizes energy-efficient, function admirable, can meet endless-track vehicle
It is required that.
Compared with prior art, the present invention has following distinguishing feature：
1, four-part form Hydro-Mechanical Variable Transmission device is constructed using four planet rows, can realized large range of
Variable speed, by Proper Match gear and Parameter of Planet Bars, the output torque of 1 section of advance or sternway fourth planet row P4 can
Expand 8 times, disclosure satisfy that the power demand of the extreme operating conditions such as vehicle climbing, the output rotating speed of the fourth planet row P4 of 4 sections of advance
Input speed can be equal to, be equivalent to realization direct gear.
2, transmission device of the invention has pure hydraulic pressure regime mode and hydraulic machinery operating mode, and step is played in vehicle
The pure hydraulic pressure regime modes of Duan Caiyong have preferable starting characteristic, and make without designing start clutch in entire transmission device
Vehicle has preferable starting ability.Vehicle advance, which changes section work and can not cut off vehicle power, realizes that each stage is steadily connected,
Power performance improves.
When 3, changing section, section control member first clutch Cl, second clutch C2, third clutch C3 and the 4th clutch are changed
Device C4 is combined and is detached without sliding substantially with rubbing, and friction plate not rub by cunning, greatly reduces thermic load and the abrasion of clutch, and have
Conducive to the structure design of clutch.Switching between each operating mode all refers to a controls and combines, the separation of another controls,
Change the design that section logic is simply conducive to hydraulic control system.Since the linking between each operating element kinematics and dynamics is flat
Surely, that reduces vehicle changes section impact, is conducive to greatly improving for automobile reliability.
4, the hydraulic mechanical composite transmission device has the function of that stable zero turn radius and continuous hydraulic stepless turn to energy
Power, handling capacity of the promotion vehicle in narrow zone.Integrated vehicle control tactics can make engine in best power performance according to road conditions
Or optimal fuel economy regional work, greatly promote the power performance and the economy performance of vehicle.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of four-part form Hydromechanical Stepless Transmission device for endless-track vehicle, which is characterized in that including：Planet coupling machine
Structure, Hydraulic Adjustable Speed component change a section control member, hydraulic stepless turning member, fluid power deceleration component；Wherein, planet coupling mechanism
Including：First planet row (P1), the second planet row (P2), third planet row (P3), fourth planet row (P4)；Hydraulic Adjustable Speed component
Including etc. discharge capacities the first variable pump and the first fixed displacement motor composition the first hydraulic speed regulation loop (PM1)；Change a section control member
Including first clutch (Cl), second clutch (C2), third clutch (C3), the 4th clutch (C4), brake (B1)；Liquid
Press continuous turning component include etc. discharge capacities the second variable pump and the second fixed displacement motor composition the second hydraulic speed regulation loop
(PM2)；Fluid power deceleration component includes fluid coupling (HC)；
Connection relation between each component is：The input shaft first bevel gear (1) of transmission device transmits the power from engine,
Power is provided for whole device, both sides conflux planetary gear set collects vehicle straight power flow and steering power stream outputs power；The
One clutch (C1) connects the gear ring of the sun gear and the second planet row (P2) of the second planet row (P2), and second clutch (C2) is even
The frame of the gear ring and third planet row (P3) of the second planet row (P2) is connect, third clutch (C3) connects the second planet row (P2)
Sun gear and third planet row (P3) frame, the 4th clutch (C4) connects the 5th spur gear (7) and the first planet row
(P1) frame of gear ring and the second planet row (P2)；Brake (B1) brakes the gear ring of third planet row (P3)；Coupling fluid-structure
The one end device (HC) connects gear box casing, and the other end connects transmission main shaft (S1)；Transmission main shaft (S1) arranges (P4) with fourth planet
Gear ring, fluid coupling (HC) and both sides bus-bar be connected, both sides bus-bar is located at the left and right sides of transmission device, with transmission
The output shaft of device is connected, and realizes the output of power；The output power of planet coupling mechanism is transmitted to by transmission main shaft (S1)
Both sides conflux planetary gear set gear ring；The mechanical output stream of planet coupling mechanism input passes through first bevel gear (1) and second bevel gear
(2), third spur gear (5) and the total 3 pairs of gears of the 4th spur gear (6), the 5th spur gear (7) transmit, and realize engine input
Rotating speed is reversed；The hydraulic power stream of planet coupling mechanism input by first bevel gear (1) and second bevel gear (2), first directly
Gear (3) and the second spur gear (4), the 6th spur gear (8) and the 7th spur gear (9), the 8th spur gear (10) amount to 4 pairs of gears
It transmits, in the case of not considering the first hydraulic speed regulation loop (PM1) speed governing, realizes that engine input speed is in the same direction；Steering power
Stream is returned by first bevel gear (1), second bevel gear (2), the first spur gear (3), the second spur gear (4), the second Hydraulic Adjustable Speed
Road (PM2), the 9th spur gear (11), the tenth spur gear (12), which are transmitted to, turns to zero axle (S2), and then power is respectively through the 11st
Spur gear (13), the 12nd spur gear (14) are transmitted to transmission device side bus-bar, through the 13rd spur gear (15), the 14th
Spur gear (16), the 15th spur gear (17) are transmitted to transmission device other side bus-bar.
2. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as described in claim 1, which is characterized in that institute
It states in the first hydraulic speed regulation loop (PM1) and the second hydraulic speed regulation loop (PM2), the first variable pump and the second variable pump configuration one
Sample, the first fixed displacement motor and the second fixed displacement motor structure are the same, and the maximum pump discharge of the first, second variable pump and first, second is determined
The discharge capacity for measuring motor is identical.
3. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as described in claim 1, which is characterized in that institute
When stating vehicle advance, the drive shift of the continuously variable transmittion includes a pure hydraulic pressure section and three hydro-mechanical segments：Pure hydraulic pressure work
Make section, hydraulic machinery active section 1, hydraulic machinery active section 2 and hydraulic machinery active section 3.
4. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as claimed in claim 3, which is characterized in that when
When the first clutch (Cl), brake (B1) engagement, it is in pure hydraulic section, pump motor discharge capacity ratio is gradually reversed from 0
Variable completes starting boost phase to -1；Power passes through the second cone tooth successively after the input first bevel gear (1) inputs
It takes turns (2), the first spur gear (3), the second spur gear (4) are transmitted to the first hydraulic speed regulation loop (PM1), the first hydraulic speed regulation loop
(PM1) it is hydraulic power stream by mechanical output circulation, through the first fixed displacement motor output shaft and the 6th spur gear (8), the 7th straight-tooth
Wheel (9), the 8th spur gear (10) are transmitted to the sun gear of the first planet row (P1), and power is through the first planet row (P1), the later
Two planet rows (P2), third planet row (P3) and fourth planet row (P4) are transmitted to transmission main shaft (S1), then through both sides bus-bar
It outputs power.
5. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as claimed in claim 3, which is characterized in that when
When the 4th clutch (C4), brake (B1) engagement, it is in hydraulic machinery active section 1, pump motor discharge capacity ratio is gradual from -1
Reversed variable realizes that vehicle accelerates to 1；After the first bevel gear (1), second bevel gear (2) input, power is divided into power
Two-way, wherein mechanical output flows through third spur gear (5), the 4th spur gear (6), the 5th spur gear (7) and is transferred to the 4th all the way
Clutch (C4), another way power flows through the first spur gear (3), the second spur gear (4) is transmitted to the first hydraulic speed regulation loop
(PM1) switch to hydraulic power stream, through motor output shaft and the 6th spur gear (8), the 7th spur gear (9), the 8th spur gear (10)
It is transmitted to the sun gear of the first planet row (P1)；Mechanical output stream and hydraulic power stream converge at the first planet row (P1), later
Power is transmitted to transmission through the first planet row (P1), the second planet row (P2), third planet row (P3) and fourth planet row (P4)
Main shaft (S1), then output power through both sides bus-bar.
6. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as claimed in claim 3, which is characterized in that institute
State hydraulic machinery active section 2 respectively in connection with operating element be second clutch (C2) and the 4th clutch (C4), Hydraulic Adjustable Speed
The variable ratio in circuit from 1 to -1, hydraulic machinery active section 3 respectively in connection with operating element be third clutch (C3) and the 4th from
Clutch (C4), the variable ratio of hydraulic speed regulation loop is from -1 to 1, and power transmission line is compared with hydraulic machinery active section 1, hydraulic press
After the first planet row (P1) confluence, the transmission of 3 power of hydraulic machinery active section 2 and hydraulic machinery active section passes through tool power flow
The second planet row (P2) and fourth planet row (P4) are crossed, (P3) is arranged without third planet.
7. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as described in claim 1, which is characterized in that institute
When stating vehicle reverse, first clutch (Cl), brake (B1) engagement, system are in pure hydraulic section, pump motor discharge capacity ratio
From 0 gradual positive variable to 1, vehicle sternway is realized；Power passes through the successively after the input first bevel gear (1) inputs
Two bevel gears (2), the first spur gear (3), the second spur gear (4), the first hydraulic speed regulation loop (PM1) and the 6th spur gear (8),
7th spur gear (9), the 8th spur gear (10) are transmitted to the sun gear of the first planet row (P1), and power is through the first planet row later
(P1), the second planet row (P2), third planet row (P3) and fourth planet row (P4) are transmitted to transmission main shaft (S1), then through both sides
Bus-bar outputs power.
8. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as described in claim 1, which is characterized in that institute
When stating vehicle center steering, third clutch (C3) and brake (B1) combine, and realize that third planet row (P3) is locked, Jin Ershi
Existing transmission main shaft braking and the braking of both sides bus-bar gear ring；Steering power stream passes through first bevel gear (1), second bevel gear (2)
It is transmitted in the second hydraulic speed regulation loop (PM2) with the first spur gear (3), the second spur gear (4), the discharge capacity point of the second variable pump
Do not realize that motor output shaft is rotated forward or inverted from 0 to 1 either from 0 to -1, power is through the 9th spur gear (11), the tenth later
Spur gear (12), which is transmitted to, turns to zero axle (S2), and then a part of power is respectively through the 11st spur gear (13), the 12nd straight-tooth
It takes turns (14), bus-bar sun gear rotary speed direction is identical with motor output shaft rotary speed direction, realizes side bus-bar frame output shaft
It rotates forward or inverts, another part power is through the 13rd spur gear (15), the 14th spur gear (16), the 15th spur gear
(17), bus-bar sun gear rotary speed direction and motor output shaft rotary speed direction are on the contrary, realize this side bus-bar frame output shaft
Reversion rotates forward；After power is transmitted to both sides driving wheel, rotated in the forward direction through vehicle side driving wheel, other side driving wheel is reversed
Rotation is realized and is turned to around vehicle geometric center.
9. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as described in claim 1, which is characterized in that institute
Vehicle is stated to advance when turning to, the second hydraulic speed regulation loop (PM2) the second variable pumpage respectively from 0 to -1 or from 0 to 1
Realize that bus-bar output rotating speed in side increases either reduction other side output rotating speed and reduces or increase, variable quantity absolute value
It is equal；In both sides, bus-bar collects respectively for straight power flow and steering power stream, after the frame output shaft through both sides bus-bar
Output.
10. being used for the four-part form Hydromechanical Stepless Transmission device of endless-track vehicle as described in claim 1, which is characterized in that
When the vehicle high-speed traveling is slowed down, a part of power of fluid coupling (HC) oil-filled work, transmission main shaft passes through fluid power coupling
Clutch is converted into the heat of high-speed stirring oil, realizes the conversion of braking energy, and then car speed is reduced；When transmission device
When hydraulic pump motor breaks down, first clutch (Cl), the 4th clutch (C4) and brake (B1) combine, and realize machinery
Gear, realizes starting and the low-speed forward of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810379637.4A CN108591410B (en) | 2018-04-25 | 2018-04-25 | Four-section type hydraulic mechanical stepless transmission device for tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379637.4A CN108591410B (en) | 2018-04-25 | 2018-04-25 | Four-section type hydraulic mechanical stepless transmission device for tracked vehicle |
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| Publication Number | Publication Date |
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| CN108591410A true CN108591410A (en) | 2018-09-28 |
| CN108591410B CN108591410B (en) | 2020-07-17 |
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| CN201810379637.4A Active CN108591410B (en) | 2018-04-25 | 2018-04-25 | Four-section type hydraulic mechanical stepless transmission device for tracked vehicle |
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| CN108597348A (en) * | 2018-06-28 | 2018-09-28 | 北京理工大学 | Zero differential speed type split path transmission demo system of one kind and method |
| CN110056634A (en) * | 2019-01-24 | 2019-07-26 | 南京农业大学 | Three four sections of planet row hydraulic machinery infinitely variable transmissions |
| CN110929334A (en) * | 2019-10-30 | 2020-03-27 | 中国北方车辆研究所 | Method for calculating transmission efficiency of track armored vehicle under gear shifting dynamic working condition |
| CN111306279A (en) * | 2020-02-21 | 2020-06-19 | 江苏大学 | Single-pump-control double-motor mechanical hydraulic composite transmission device |
| CN111692300A (en) * | 2020-03-25 | 2020-09-22 | 中国北方车辆研究所 | Mechanical hydraulic composite transmission device suitable for heavy vehicle |
| CN112360949A (en) * | 2020-11-25 | 2021-02-12 | 北京圆海传智科技有限公司 | Four-section type hydraulic mechanical composite stepless transmission device |
| CN113983140A (en) * | 2021-11-22 | 2022-01-28 | 浙江盘毂动力科技有限公司 | Large-torque hydraulic mechanical combined type comprehensive transmission device and vehicle |
| CN114087334A (en) * | 2021-11-17 | 2022-02-25 | 浙江盘毂动力科技有限公司 | Hydraulic and mechanical combined type comprehensive transmission device and vehicle |
| CN114151527A (en) * | 2021-12-09 | 2022-03-08 | 浙江盘毂动力科技有限公司 | Zero-differential-speed stepless-steering hydraulic mechanical combined type comprehensive transmission device and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597348A (en) * | 2018-06-28 | 2018-09-28 | 北京理工大学 | Zero differential speed type split path transmission demo system of one kind and method |
| CN110056634A (en) * | 2019-01-24 | 2019-07-26 | 南京农业大学 | Three four sections of planet row hydraulic machinery infinitely variable transmissions |
| CN110929334A (en) * | 2019-10-30 | 2020-03-27 | 中国北方车辆研究所 | Method for calculating transmission efficiency of track armored vehicle under gear shifting dynamic working condition |
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| CN111306279A (en) * | 2020-02-21 | 2020-06-19 | 江苏大学 | Single-pump-control double-motor mechanical hydraulic composite transmission device |
| WO2021164048A1 (en) * | 2020-02-21 | 2021-08-26 | 江苏大学 | Single-pump-controlled dual-motor mechanical and hydraulic composite transmission device |
| CN111692300A (en) * | 2020-03-25 | 2020-09-22 | 中国北方车辆研究所 | Mechanical hydraulic composite transmission device suitable for heavy vehicle |
| CN111692300B (en) * | 2020-03-25 | 2021-08-17 | 中国北方车辆研究所 | Mechanical hydraulic composite transmission device suitable for heavy vehicle |
| CN112360949A (en) * | 2020-11-25 | 2021-02-12 | 北京圆海传智科技有限公司 | Four-section type hydraulic mechanical composite stepless transmission device |
| CN112360949B (en) * | 2020-11-25 | 2021-08-27 | 北京圆海传智科技有限公司 | Four-section type hydraulic mechanical composite stepless transmission device |
| CN114087334A (en) * | 2021-11-17 | 2022-02-25 | 浙江盘毂动力科技有限公司 | Hydraulic and mechanical combined type comprehensive transmission device and vehicle |
| CN114087334B (en) * | 2021-11-17 | 2023-11-03 | 浙江盘毂动力科技有限公司 | Hydraulic mechanical combined type comprehensive transmission device and vehicle |
| CN113983140A (en) * | 2021-11-22 | 2022-01-28 | 浙江盘毂动力科技有限公司 | Large-torque hydraulic mechanical combined type comprehensive transmission device and vehicle |
| CN113983140B (en) * | 2021-11-22 | 2023-10-20 | 浙江盘毂动力科技有限公司 | Large-torque hydraulic mechanical combined type comprehensive transmission device and vehicle |
| CN114151527A (en) * | 2021-12-09 | 2022-03-08 | 浙江盘毂动力科技有限公司 | Zero-differential-speed stepless-steering hydraulic mechanical combined type comprehensive transmission device and vehicle |
| CN114151527B (en) * | 2021-12-09 | 2023-10-13 | 浙江盘毂动力科技有限公司 | Hydraulic mechanical combined type comprehensive transmission device for zero differential speed stepless steering and vehicle |
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