CN107166005A - Mechanical-hydraulic mixes stepless transfer gear box - Google Patents
Mechanical-hydraulic mixes stepless transfer gear box Download PDFInfo
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- CN107166005A CN107166005A CN201710568175.6A CN201710568175A CN107166005A CN 107166005 A CN107166005 A CN 107166005A CN 201710568175 A CN201710568175 A CN 201710568175A CN 107166005 A CN107166005 A CN 107166005A
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- clutches
- gear
- planet rows
- planet
- output
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0047—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising five forward speeds
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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
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
- F16H2200/0091—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising three reverse speeds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention relates to transfer gear box, to solve the problem of existing gearbox can not realize Power Control;A kind of mechanical-hydraulic is provided and mixes stepless transfer gear box, including four planet rows, seven clutches, variable pump, variable displacement motors, transmission input shaft is connected by gear pair with variable pump, and variable displacement motor is driven by variable pump, and variable displacement motor output shaft is connected with P2 planet rows sun gear.Gearbox control controls clutched state and variable pump, the discharge capacity of variable displacement motor, realizes 5 forward gears, the speed change of 3 retreating gears, wherein advance I gears and to retreat I gears be pure hydrostatic transmissions, and tractive force is big, and efficiency is higher than torque-converters;Advance II V and retreat II III gear and be driven for machinery with hydraulic hybrid, machine driving accounting is big, efficiency high.The gearbox low speed torque is big, can realize that each gear is linked up smoothly by the discharge capacity of reasonable adjusting variable pump and variable displacement motor, shift shock is small, efficiency high, with very high practical value.
Description
Technical field
The present invention relates to a kind of transfer gear box, stepless transmission gear shift is mixed more specifically to a kind of mechanical-hydraulic
Case.
Background technology
Existing wheel loader is mainly hydraulic mechanical, one is engine using two kinds of power train allocation plans
Twin-turbine torque converter and the first two planetary latter gearbox are followed by, two be that engine is followed by hydraulic single-turbine torque converter with before
Enter four gears and retreat four gears (gear of advance four or retrogressing three are kept off) or three fixed shaft type power-shift transmissions after first three.Both the above is driven
Scheme can all meet the work use requirement of loading machine, for example, change speed and moment of torsion automatically with the size of load, while this
Excursion nor constant width are wide, are relatively adapted to the small moment of torsion traveling of loading machine high speed, low-speed big working condition, fluid torque-converter
Flexible connection performance make the life-span of engine and gearbox be obtained for raising etc..But hydraulic mechanical also has its protrusion
Shortcoming, such as poor to the freewheel clutch force-bearing situation and lubricating condition in double hydrotransmitters, poor reliability;Using work(
Dividing type hydraulic machine is driven in rate, and power loss is big, causes less efficient, high efficient district scope is narrower, so that complete machine is total
Efficiency is low;Planetary structure is complicated simultaneously, and processing and manufacturing is difficult, and maintenance is inconvenient.And exist can not be according to the work of loading machine
Industry operating mode carries out power adjusting, and the dress very low problem of operation timeliness rate is started to walk and shovel in loading machine.
The content of the invention
The technical problem to be solved in the present invention is to be directed to the problem of existing gearbox can not realize Power Control, and provides one
Plant mechanical-hydraulic and mix stepless transfer gear box.
The present invention is such for the technical scheme for realizing its purpose:A kind of mechanical-hydraulic is provided and mixes stepless transmission gear shift
Case, it is characterised in that including P1 planet rows, P2 planet rows, P3 planet rows, P4 planet rows, C1 clutches, C2 clutches, C3 clutches
Device, C4 clutches, C5 clutches, C6 clutches, C7 clutches, variable pump, variable displacement motor, transmission input shaft pass through gear pair
It is connected with the input of variable pump, variable pump drives variable displacement motor, output shaft and the P2 planet rows of variable displacement motor by pipeline
Sun gear is connected;The input of C1 clutches is connected with transmission input shaft, the sun of C1 clutch outputs and P1 planet rows
The input spline connection of wheel and C2 clutches, the input of the gear ring of P1 planet rows and the output end of C2 clutches and C3 clutches
End is connected, and the output end of C3 clutches is fixed, and the gear ring of the planet carrier and P2 planet rows of P1 planet rows is rigidly connected;P2 planet rows
The input of gear ring and C4 clutches be connected, the output end of C4 clutches is fixed, planet carrier and the P3 planet rows of P2 planet rows
Sun gear, the sun gear of P4 planet rows, the input of C7 clutches connect with spline;C5 clutch outputs are fixed,
The planet carrier of input and P3 planet rows is connected, and the planet carrier of the gear ring and P4 planet rows of P3 planet rows is rigidly connected, P4 planets
The planet carrier of row is connected with the output end of C7 clutches and output gear, and C6 clutch outputs are fixed, input and P4 planets
The gear ring of row is connected, and power is exported by the output shaft of the end gear engaged with output gear.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C2 clutches, C3 clutches, C4 clutches,
C6 clutches realize that advance I is kept off;Power is input to P2 planet rows through transmission input shaft, gear pair, variable pump, variable displacement motor
Sun gear, planet carrier through P2 planet rows, which slows down, is output to the sun gear of P4 planet rows, then planet carrier successively through P4 planet rows,
Output gear, the transmission of end gear are exported by the output shaft of end gear.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C2 clutches, C3 clutches, C4 clutches,
C5 clutches, which are realized, retreats I gears;Power is input to P2 planet rows through transmission input shaft, gear pair, variable pump, variable displacement motor
Sun gear, planet carrier through P2 planet rows, which slows down, is output to the sun gear of P3 planet rows, then gear ring successively through P3 planet rows, defeated
Go out gear, the transmission of end gear to be exported by the output shaft of end gear.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C1 clutches, C3 clutches, C4 clutches,
C6 clutches realize that advance II is kept off;A part of power is input to P2 through transmission input shaft, gear pair, variable pump, variable displacement motor
The sun gear of planet row, another part power is input to the sun gear of P1 planet rows through transmission input shaft, C1 clutches, then by
The planet carrier of P1 planet rows, which slows down, is output to the gear ring of P2 planet rows, and two parts power is collaborated by the planet carrier of P2 planet rows,
Slow down and be output to the sun gear of P4 planet rows, then planet carrier, output gear, the end gear successively through P4 planet rows are transmitted by end
The output shaft output of end tooth wheel.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C1 clutches, C2 clutches, C4 clutches,
C6 clutches realize that advance III is kept off;A part of power is input to P2 through transmission input shaft, gear pair, variable pump, variable displacement motor
The sun gear of planet row, another part power is input to P1 planet rows through transmission input shaft, C1 clutches, then by P1 planet rows
With 1:Gear ring of 1 speed than being output to P2 planet rows, two parts power is collaborated by the planet carrier of P2 planet rows, and deceleration is output to
The sun gear of P4 planet rows, then planet carrier successively through P4 planet rows, output gear, end gear are transmitted by the defeated of end gear
Shaft is exported.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C1 clutches, C3 clutches, C4 clutches,
C7 clutches realize that advance IV is kept off;A part of power is input to P2 through transmission input shaft, gear pair, variable pump, variable displacement motor
The sun gear of planet row, another part power is input to the sun gear of P1 planet rows through transmission input shaft, C1 clutches, then by
The planet carrier of P1 planet rows, which slows down, is output to the gear ring of P2 planet rows, and two parts power is collaborated by the planet carrier of P2 planet rows,
Pass sequentially through C7 clutches, output gear, end gear transmission by end gear output shaft export.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C1 clutches, C2 clutches, C4 clutches,
C7 clutches realize that advance V is kept off;A part of power is input to P2 rows through transmission input shaft, gear pair, variable pump, variable displacement motor
The sun gear of star row, another part power is input to P1 planet rows through transmission input shaft, C1 clutches, then by P1 planet rows with
1:1 speed is collaborated than being output to the gear rings of P2 planet rows, two parts power by the planet carrier of P2 planet rows, pass sequentially through C7 from
Clutch, output gear, the transmission of end gear are exported by the output shaft of end gear.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C1 clutches, C3 clutches, C4 clutches,
C5 clutches, which are realized, retreats II gears;A part of power is input to P2 through transmission input shaft, gear pair, variable pump, variable displacement motor
The sun gear of planet row, another part power is input to the sun gear of P1 planet rows through transmission input shaft, C1 clutches, then by
The planet carrier of P1 planet rows, which slows down, is output to the gear ring of P2 planet rows, and two parts power is collaborated by the planet carrier of P2 planet rows,
Slow down and be output to the sun gear of P3 planet rows, then gear ring, output gear, the end gear successively through P3 planet rows are transmitted by end
The output shaft output of gear.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, by combine C1 clutches, C2 clutches, C4 clutches,
C5 clutches, which are realized, retreats III gears;A part of power is input to P2 through transmission input shaft, gear pair, variable pump, variable displacement motor
The sun gear of planet row, another part power is input to P1 planet rows through transmission input shaft, C1 clutches, then by P1 planet rows
With 1:Gear ring of 1 speed than being output to P2 planet rows, two parts power is collaborated by the planet carrier of P2 planet rows, and deceleration is output to
The sun gear of P3 planet rows, then the gear ring output gear through P3 planet rows, end gear transmit the output by end gear successively
Axle is exported.
Above-mentioned mechanical-hydraulic is mixed in stepless transfer gear box, the variable pump for can positive and negative rotation hydraulic pump, it is described
Variable displacement motor for can positive and negative rotation hydraulic motor.
Compared with prior art, the present invention is controlled the engagement state and variable of clutch by gearbox control to the present invention
The discharge capacity of pump, variable displacement motor, realizes 5 forward gears, the gearbox of 3 retreating gears, wherein advance I gears and to retreat I gears be pure quiet
Hydraulic drive, tractive force is big, and efficiency is higher than torque-converters;Advance II-V and retrogressing II-III gears are machinery and hydraulic hybrid biography
Dynamic, machine driving accounting is big, efficiency high.The mechanical-hydraulic mixes stepless transfer gear box low speed torque greatly, crosses reasonable adjusting and becomes
The discharge capacity of amount pump and variable displacement motor can realize that each gear is linked up smoothly, and shift shock is small, efficiency high, with very high practical valency
Value.
Brief description of the drawings
Fig. 1 is the transmission principle figure that mechanical-hydraulic of the present invention mixes stepless transfer gear box.
Parts title and sequence number in figure:
Engine 1, input gear 2, idler gear 3, variable pump 4, variable displacement motor 5, P1 planet rows planet carrier 8, P1 planets
Arrange sun gear 9, P2 planet rows sun gear 10, P2 planet rows planet carrier 11, P3 planet rows planet carrier 12, P4 planet rows gear ring 13,
P3 planet rows gear ring 14, P3 planet rows sun gear 15, P4 planet rows sun gear 16, output gear 17, end gear 18, terminal teeth
Take turns output shaft 19.
Embodiment
Illustrate specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the mechanical-hydraulic in the present embodiment, which mixes stepless transfer gear box, is mainly used in loading machine, the speed change
Case includes P1 planet rows, P2 planet rows, P3 planet rows, P4 planet rows, C1 clutches, C2 clutches, C3 clutches, C4 clutches
Device, C5 clutches, C6 clutches, C7 clutches, variable pump 4, variable displacement motor 5.Variable pump 4 for can positive and negative rotation hydraulic pump,
Variable displacement motor 5 for can positive and negative rotation hydraulic motor.Transmission input shaft is connected by gear pair with the input of variable pump 4.
Gear pair is made up of idler gear 3 with input gear 2, and input gear is fixedly mounted on transmission input shaft to be inputted with gearbox
Axle is rotated coaxially, and the output shaft that transmission input shaft is exported such as engine 1 with external impetus is fixedly connected.Input gear 2 is with
Between gear 3 engage, the rotating shaft of idler gear 3 is connected with the input of variable pump 4.Variable pump 4 drives variable displacement motor by pipeline
5, the output shaft of variable displacement motor 5 is connected with the sun gear 10 of P2 planet rows;The input of C1 clutches is consolidated with transmission input shaft
Even, C1 clutch outputs are connected with the sun gear 9 of P1 planet rows and the input spline of C2 clutches, the gear ring of P1 planet rows
7 are connected with the output end of C2 clutches and the input of C3 clutches, and the output end of C3 clutches is fixed, the planet of P1 planet rows
The gear ring of frame 8 and P2 planet rows is rigidly connected, for example, both are designed into a single integrated structure;The gear ring of P2 planet rows and C4 clutches
Input be connected, the output end of C4 clutches is fixed, the planet carrier 11 of P2 planet rows and the sun gear 15 of P3 planet rows, P4 rows
Sun gear 16, the input of C7 clutches of star row is connected with spline;C5 clutch outputs are fixed, input and P3 rows
The planet carrier 12 of star row is connected, and the planet carrier of the gear ring 14 and P4 planet rows of P3 planet rows is rigidly connected, the planet of P4 planet rows
The output end and output gear 17 of frame and C7 clutches are connected, and C6 clutch outputs are fixed, the tooth of input and P4 planet rows
Circle 13 is connected, and power is exported by the output shaft 19 of the end gear 18 engaged with output gear 17.
In the present embodiment, realize that advance I is kept off by combining C2 clutches, C3 clutches, C4 clutches, C6 clutches;It is dynamic
Power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, through P2 planet rows
Planet carrier 11 slow down and be output to the sun gears 16 of P4 planet rows, then planet carrier successively through P4 planet rows, output gear 17, end
End tooth wheel 18 is transmitted to be exported by the output shaft 19 of end gear 18.
In the present embodiment, realize that retreating I keeps off by combining C2 clutches, C3 clutches, C4 clutches, C5 clutches;It is dynamic
Power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, through P2 planet rows
Planet carrier 11 slow down and be output to the sun gears 15 of P3 planet rows, then the gear ring 14 through P3 planet rows, output gear 17, end successively
End tooth wheel 18 is transmitted to be exported by the output shaft 19 of end gear 18.
In the present embodiment, realize that advance II is kept off by combining C1 clutches, C3 clutches, C4 clutches, C6 clutches;One
Partial power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, another
Partial power is input to the sun gear 9 of P1 planet rows through transmission input shaft, C1 clutches, then by the planet carrier 8 of P1 planet rows
Slow down and be output to the gear ring of P2 planet rows, two parts power is collaborated by the planet carrier 11 of P2 planet rows, deceleration is output to P4 rows
The sun gear 16 of star row, then planet carrier, output gear 17, end gear 18 successively through P4 planet rows are transmitted by end gear 18
Output shaft 19 export.
In the present embodiment, realize that advance III is kept off by combining C1 clutches, C2 clutches, C4 clutches, C6 clutches;
A part of power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, separately
A part of power is input to P1 planet rows through transmission input shaft, C1 clutches, then by P1 planet rows with 1:1 fast ratio is output to
The gear ring of P2 planet rows, two parts power is collaborated by the planet carrier 11 of P2 planet rows, is slowed down and is output to the sun of P4 planet rows
Wheel 16, then planet carrier, output gear 17, end gear 18 successively through P4 planet rows transmit the output shaft 19 by end gear 18
Output.
In the present embodiment, realize that advance IV is kept off by combining C1 clutches, C3 clutches, C4 clutches, C7 clutches;One
Partial power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, another
Partial power is input to the sun gear 9 of P1 planet rows through transmission input shaft, C1 clutches, then by the planet carrier 8 of P1 planet rows
Slow down and be output to the gear ring of P2 planet rows, two parts power is collaborated by the planet carrier 11 of P2 planet rows, passes sequentially through C7 clutches
Device, output gear 17, end gear 18 are transmitted to be exported by the output shaft 19 of end gear 18.
In the present embodiment, realize that advance V is kept off by combining C1 clutches, C2 clutches, C4 clutches, C7 clutches;One
Partial power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, another
Partial power is input to P1 planet rows through transmission input shaft, C1 clutches, then by P1 planet rows with 1:1 fast ratio is output to P2
The gear ring of planet row, two parts power is collaborated by the planet carrier 11 of P2 planet rows, passes sequentially through C7 clutches, output gear
17th, end gear 18 is transmitted is exported by the output shaft 19 of end gear 18.
In the present embodiment, realize that retreating II keeps off by combining C1 clutches, C3 clutches, C4 clutches, C5 clutches;One
Partial power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, another
Partial power is input to the sun gear 9 of P1 planet rows through transmission input shaft, C1 clutches, then by the planet carrier 8 of P1 planet rows
Slow down and be output to the gear ring of P2 planet rows, two parts power is collaborated by the planet carrier 11 of P2 planet rows, deceleration is output to P3 rows
The sun gear 15 of star row, then the gear ring 14 through P3 planet rows, output gear 17, end gear 18 are transmitted by end gear 18 successively
Output shaft 19 export.
In the present embodiment, realize that retreating III keeps off by combining C1 clutches, C2 clutches, C4 clutches, C5 clutches;
A part of power is input to the sun gear 10 of P2 planet rows through transmission input shaft, gear pair, variable pump 4, variable displacement motor 5, separately
A part of power is input to P1 planet rows through transmission input shaft, C1 clutches, then by P1 planet rows with 1:1 fast ratio is output to
The gear ring of P2 planet rows, two parts power is collaborated by the planet carrier 11 of P2 planet rows, is slowed down and is output to the sun of P3 planet rows
Wheel 15, then the output gear 17 of gear ring 14, end gear 18 through P3 planet rows transmit the output shaft 19 by end gear 18 successively
Output.
The engagement state and variable pump, the discharge capacity of variable displacement motor of clutch are controlled in the present embodiment by gearbox control,
Realize 5 forward gears, the gearbox of 3 retreating gears, wherein advance I gears and to retreat I gears be pure hydrostatic transmissions, tractive force is big,
Efficiency is higher than torque-converters;It is machinery and hydraulic hybrid transmission that advance II-V and retrogressing II-III, which are kept off, and machine driving accounting greatly, is imitated
Rate is high.The mechanical-hydraulic mixes stepless transfer gear box low speed torque greatly, crosses the discharge capacity of reasonable adjusting variable pump and variable displacement motor
It can realize that each gear is linked up smoothly, shift shock is small, efficiency high, with very high practical value.
In the present embodiment, the engagement logic of gear and clutch is as shown in table 1.
Table 1:The engagement logical relation of gear and clutch.
Gear | Clutch bonding state | The kind of drive |
I grades of advance | C2, C3, C4, C6 are engaged | Pure hydrostatic transmissions |
II grades of advance | C1, C3, C4, C6 are engaged | Machinery confluxes with hydraulic pressure in input |
III grades of advance | C1, C2, C4, C6 are engaged | Machinery confluxes with hydraulic pressure in input |
IV grades of advance | C1, C3, C4, C7 are engaged | Machinery confluxes with hydraulic pressure in input |
V grades of advance | C1, C2, C4, C7 are engaged | Machinery confluxes with hydraulic pressure in input |
Retreat I grades | C2, C3, C4, C5 are engaged | Pure hydrostatic transmissions |
Retreat II grades | C1, C3, C4, C5 are engaged | Machinery confluxes with hydraulic pressure in input |
Retreat III grades | C1, C2, C4, C5 are engaged | Machinery confluxes with hydraulic pressure in input |
Claims (10)
1. a kind of mechanical-hydraulic mixes stepless transfer gear box, it is characterised in that including P1 planet rows, P2 planet rows, P3 planets
Row, P4 planet rows, C1 clutches, C2 clutches, C3 clutches, C4 clutches, C5 clutches, C6 clutches, C7 clutches, change
Pump (4), variable displacement motor (5) are measured, transmission input shaft is connected by gear pair with the input of variable pump (4), variable pump (4) leads to
Pipeline driving variable displacement motor (5) is crossed, the output shaft of variable displacement motor (5) is connected with the sun gear (10) of P2 planet rows;C1 clutches
Input and transmission input shaft be connected, the sun gear (9) of C1 clutch outputs and P1 planet rows and C2 clutches it is defeated
Enter to hold spline to connect, the input of the gear ring (7) of P1 planet rows and the output end of C2 clutches and C3 clutches is connected, C3 clutches
The output end of device is fixed, and the gear ring of the planet carrier (8) and P2 planet rows of P1 planet rows is rigidly connected;The gear ring and C4 of P2 planet rows
The input of clutch is connected, and the output end of C4 clutches is fixed, the planet carrier (11) of P2 planet rows and the sun of P3 planet rows
Wheel (15), sun gear (16), the input of C7 clutches of P4 planet rows are connected with spline;C5 clutch outputs are consolidated
Fixed, the planet carrier (12) of input and P3 planet rows is connected, the gear ring (14) of P3 planet rows and the planet carrier rigidity of P4 planet rows
Connection, the planet carrier of P4 planet rows is connected with the output end of C7 clutches and output gear (17), and C6 clutch outputs are fixed,
The gear ring (13) of input and P4 planet rows is connected, and power passes through the output of the end gear (18) engaged with output gear (17)
Axle (19) is exported.
2. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C2 clutches
Device, C3 clutches, C4 clutches, C6 clutches realize that advance I is kept off;Power through transmission input shaft, gear pair, variable pump (4),
Variable displacement motor (5) is input to the sun gear (10) of P2 planet rows, and the planet carrier (11) through P2 planet rows, which slows down, is output to P4 planets
The sun gear (16) of row, then planet carrier successively through P4 planet rows, output gear (17), end gear (18) are transmitted by terminal teeth
Take turns output shaft (19) output of (18).
3. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C2 clutches
Device, C3 clutches, C4 clutches, C5 clutches, which are realized, retreats I gears;Power through transmission input shaft, gear pair, variable pump (4),
Variable displacement motor (5) is input to the sun gear (10) of P2 planet rows, and the planet carrier (11) through P2 planet rows, which slows down, is output to P3 planets
The sun gear (15) of row, then gear ring (14) successively through P3 planet rows, output gear (17), end gear (18) are transmitted by end
Output shaft (19) output of gear (18).
4. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C1 clutches
Device, C3 clutches, C4 clutches, C6 clutches realize that advance II is kept off;A part of power is through transmission input shaft, gear pair, change
Amount pump (4), variable displacement motor (5) are input to the sun gears (10) of P2 planet rows, another part power through transmission input shaft, C1 from
Clutch is input to the sun gear (9) of P1 planet rows, then is slowed down by the planet carrier (8) of P1 planet rows and be output to the tooth of P2 planet rows
Circle, two parts power is collaborated by the planet carrier (11) of P2 planet rows, is slowed down and is output to the sun gear (16) of P4 planet rows, then according to
The secondary planet carrier through P4 planet rows, output gear (17), end gear (18) transmit the output shaft (19) by end gear (18)
Output.
5. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C1 clutches
Device, C2 clutches, C4 clutches, C6 clutches realize that advance III is kept off;A part of power is through transmission input shaft, gear pair, change
Amount pump (4), variable displacement motor (5) are input to the sun gears (10) of P2 planet rows, another part power through transmission input shaft, C1 from
Clutch is input to P1 planet rows, then by P1 planet rows with 1:Gear ring of 1 speed than being output to P2 planet rows, two parts power passes through
Planet carrier (11) interflow of P2 planet rows, slows down and is output to the sun gear (16) of P4 planet rows, then the row successively through P4 planet rows
Carrier, output gear (17), end gear (18) transmission are exported by the output shaft (19) of end gear (18).
6. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C1 clutches
Device, C3 clutches, C4 clutches, C7 clutches realize that advance IV is kept off;A part of power is through transmission input shaft, gear pair, change
Amount pump (4), variable displacement motor (5) are input to the sun gears (10) of P2 planet rows, another part power through transmission input shaft, C1 from
Clutch is input to the sun gear (9) of P1 planet rows, then is slowed down by the planet carrier (8) of P1 planet rows and be output to the tooth of P2 planet rows
Circle, two parts power is collaborated by the planet carrier (11) of P2 planet rows, passes sequentially through C7 clutches, output gear (17), end
Gear (18) is transmitted to be exported by the output shaft (19) of end gear (18).
7. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C1 clutches
Device, C2 clutches, C4 clutches, C7 clutches realize that advance V is kept off;A part of power is through transmission input shaft, gear pair, variable
Pump (4), variable displacement motor (5) are input to the sun gear (10) of P2 planet rows, and another part power is through transmission input shaft, C1 clutches
Device is input to P1 planet rows, then by P1 planet rows with 1:Gear ring of 1 speed than being output to P2 planet rows, two parts power passes through P2
Planet carrier (11) interflow of planet row, passes sequentially through C7 clutches, output gear (17), end gear (18) transmission by terminal teeth
Take turns output shaft (19) output of (18).
8. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C1 clutches
Device, C3 clutches, C4 clutches, C5 clutches, which are realized, retreats II gears;A part of power is through transmission input shaft, gear pair, change
Amount pump (4), variable displacement motor (5) are input to the sun gears (10) of P2 planet rows, another part power through transmission input shaft, C1 from
Clutch is input to the sun gear (9) of P1 planet rows, then is slowed down by the planet carrier (8) of P1 planet rows and be output to the tooth of P2 planet rows
Circle, two parts power is collaborated by the planet carrier (11) of P2 planet rows, is slowed down and is output to the sun gear (15) of P3 planet rows, then according to
The secondary gear ring (14) through P3 planet rows, output gear (17), end gear (18) transmit the output shaft by end gear (18)
(19) export.
9. mechanical-hydraulic according to claim 1 mixes stepless transfer gear box, it is characterised in that:By combining C1 clutches
Device, C2 clutches, C4 clutches, C5 clutches, which are realized, retreats III gears;A part of power is through transmission input shaft, gear pair, change
Amount pump (4), variable displacement motor (5) are input to the sun gears (10) of P2 planet rows, another part power through transmission input shaft, C1 from
Clutch is input to P1 planet rows, then by P1 planet rows with 1:Gear ring of 1 speed than being output to P2 planet rows, two parts power passes through
Planet carrier (11) interflow of P2 planet rows, slows down and is output to the sun gear (15) of P3 planet rows, then the tooth successively through P3 planet rows
(14) output gear (17), end gear (18) transmission is enclosed to be exported by the output shaft (19) of end gear (18).
10. mechanical-hydraulic according to any one of claim 1 to 9 mixes stepless transfer gear box, it is characterised in that:Institute
State variable pump for can positive and negative rotation hydraulic pump, the variable displacement motor for can positive and negative rotation hydraulic motor.
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CN109737195A (en) * | 2019-01-24 | 2019-05-10 | 南京农业大学 | A kind of nested combined type main shaft of HMCVT |
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 |
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