CN206785965U - Hybrid mechanical-hydraulic compound gearing - Google Patents
Hybrid mechanical-hydraulic compound gearing Download PDFInfo
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- CN206785965U CN206785965U CN201720690988.8U CN201720690988U CN206785965U CN 206785965 U CN206785965 U CN 206785965U CN 201720690988 U CN201720690988 U CN 201720690988U CN 206785965 U CN206785965 U CN 206785965U
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- planetary gears
- pump
- output shaft
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Abstract
The utility model discloses a kind of hybrid mechanical-hydraulic compound gearing, including power input shaft, power output shaft and the Composite Transmission component for the power of the power output shaft to be transferred to power output shaft；The Composite Transmission component includes volume adjustable hydraulic pump, the liquid pressure energy that the volume adjustable hydraulic pump exports is converted to the volume adjustable hydraulic pump, the first planetary gears and the second planetary gears and driving gear set of rotational power, this speed changer can be bigger than output coupling formula on speed adjustable range, is more nearly linearisation；And it is the contributive rate that hydraulic circuit part is reduced because the combination of two groups of planetary gear trains in speed stiffness characteristic preferably；Have the advantages of output coupling formula is with input coupling formula concurrently simultaneously, greatly increase the governor control characteristics, power dividing characteristic, torque characteristics of speed changer.
Description
Technical field
Gear arrangement field is the utility model is related to, specifically a kind of hybrid mechanical-hydraulic compound gearing.
Background technology
Hydraulic machinery composite transmission is a kind of split path transmission system that power is transmitted by Hydraulic Elements and mechanical organ shunting
System, carrying out reasonable design can be such that machine driving high efficiency is combined with the advantages that hydraulic drive stepless speed regulation, meet transmission
Demand, improve comfortableness.Hydraulic mechanical composite transmission with it is purely mechanic have level transmission compared with, its biggest advantage is exactly its gearratio
Continuously adjustabe, be not in pause and transition in rhythm or melody sense during gear shift, and the easy operation of driver；With traditional pure hydraulic pressure without
Level gear mode is compared, and not only has higher efficiency, and transmission power and weight ratio are also higher.Therefore, by liquid
Press mechanical pressing composite transmission is applied on vehicle drive system, can effectively improve of running resistance and engine characteristics
Match somebody with somebody, improve the comfortableness of driving, simplify the operability of driver, so as to improve the economy of vehicle and dynamic property.
Hydraulic mechanical composite transmission is typically divided into three kinds：1) input coupling formula：It is by mechanical circuit and liquid in input
The torque for pushing back road is converged, and converges rotating speed in output end planetary gear train, and planetary gear train is arranged in the defeated of hydraulic motor
Go out end, one component of planetary gear train is directly connected with motor output shaft, and another component is connected with engine.2) output coupling
Formula：It is that engine speed is divided into mechanical circuit and hydraulic circuit with planetary gear train, converges torque in output end, therefore
Planetary gear train is arranged in the output end of engine, planetary gear train input shaft is directly connected with engine, then passes through planetary gear
The output shaft link variable pump input shaft of system.3) it is hybrid：It is respectively to have one group of planet in the output end of engine and hydraulic motor
Train, unlike the above two, two groups of planetary gear trains share an output shaft, and the connecting shaft of preceding group of planetary gear train is by work(
Rate flows into hydraulic circuit all the way, and the input shaft of planetary gear train is organized after flowing into all the way.
The Main Patterns for obtaining the hydraulic machinery composite transmission that popularization uses at present are input coupling formula and output coupling
Formula.Show that output coupling formula is less prone to larger fluctuation in power distribution, and input coupling formula is in discharge capacity ratio by analysis
It is easily controllable with linearly changing in the relation of gearratio.But two schemes respectively have deficiency, want to provide the feelings of stable allocation simultaneously
The controllability of system is improved under condition, being simply input manifold type structure and output coupling formula structure can not all meet to require.Mesh
It is to be combined two ways that preceding one of which, which solves method, using the collective effect of two groups of planet rows, is improved simultaneously
Stability, high efficiency and the controllability of speed change system.
Hybrid mechanical-hydraulic Composite Transmission can be formed in 36 according to the combination of the different kinds of drive of planet row
Different type of belt drive, but because the series connection of planet row causes the complexity of type of belt drive so that the transmission combination mode of part is not
It is only not more preferable than the drive characteristic of single planetary row, on the contrary the characteristic of each side is decreased.
The structure type of the application entered certain analysis and research, so as to reach than traditional input coupling formula and defeated
The speed changer of manifold type structure has more preferable governor control characteristics and broader speed adjustable range, substantially increases the effect in transmission process
Rate, stability and convenience.
Utility model content
In view of this, the purpose of this utility model is the defects of overcoming in the prior art, there is provided a kind of hybrid hydraulic machine
The buncher of tool Composite Transmission, the hybrid hydraulic machinery composite transmission can be wanted on speed adjustable range than output coupling formula
Greatly, it is more nearly linearisation；And in speed stiffness characteristic preferably, it is because the combination of two groups of planetary gear trains, reduces hydraulic pressure and return
The contributive rate of road part；Have the advantages of output coupling formula is with input coupling formula concurrently simultaneously, greatly increase the speed governing of speed changer
Characteristic, power dividing characteristic, torque characteristics.
Hybrid mechanical-hydraulic compound gearing of the present utility model, including power input shaft, power output shaft and
For the power of the power output shaft to be transferred to the Composite Transmission component of power output shaft；The Composite Transmission component includes
Volume adjustable hydraulic pump, volume adjustable hydraulic pump, the first row that the liquid pressure energy that the volume adjustable hydraulic pump exports is converted to rotational power
Star gear mechanism and the second planetary gears and driving gear set；First planetary gears is used for power input shaft
The power of input is distributed to the power output shaft and driving gear set, and power is transferred into the change by driving gear set
Measure the input of hydraulic pump；The planet carrier of second planetary gears is used to receive the dynamic of the volume adjustable hydraulic pump output
Power, its gear ring are connected in the power output shaft, and its sun gear can be inputted power to variable pump by driving gear set
A part of power that end is transmitted or receives to be distributed by the first planetary gears by driving gear set；
Further, the planet carrier of first planetary gears is connected in the power input shaft, its sun gear
It is connected in the power output shaft, its gear ring is used for power to driving gear set transmission；
Further, the driving gear set includes being driven simultaneously and is matched with the gear ring of the first planetary gears and is fixed on
First travelling gear of the pump input gear on variable pump pump shaft, the coordinated with the transmission of the sun gear of the second planetary gears
Two travelling gears and the axis being coaxially fixed between first travelling gear and the second travelling gear；
Further, the gear ring of first planetary gears and the planet carrier of the second planetary gears are coaxially fixed with
External gear；First travelling gear is engaged in the external gear of pump input gear and the first planetary gears gear ring simultaneously；The
The external gear of two planetary gears planet carriers is engaged in the motor output gear being fixed on the motor drive shaft of the variable fluid motor
Wheel；
Further, the volume adjustable hydraulic pump and variable hydraulic motor are Double-directional rotary mechanism.
The beneficial effects of the utility model are：Hybrid mechanical-hydraulic compound gearing of the present utility model, engine
Power input shaft is connected, when the engine operates, drives the planet carrier of the first planetary gears on power input shaft to rotate,
Its sun gear and gear ring, which respectively distribute power to power output shaft and driving gear set, driving gear set, passes to power flow
The pump shaft of variable pump, volume adjustable hydraulic pump is driven to rotate；Volume adjustable hydraulic pump is connected by hydraulic circuit with variable hydraulic motor, will be dynamic
Power passes to variable hydraulic motor；Variable hydraulic motor drives the rotation of coupled motor drive shaft, and installation is on the motor
Motor output gear rotate and engaged with the external gear of the planet carrier of the second planetary gears, hydraulic power is spread and passed
The planet carrier of second planetary gears；The sun gear of the second travelling gear and the second planetary gears in driving gear set
Co-axially fixed gear engagement, drives the sun gear to rotate, the power flow of mechanical part is transferred into the second planetary gears
Sun gear；Two bursts of power flows are confluxed at the second planetary gears, and the rotation of power output shaft influences first simultaneously
The rotation of the sun gear of planetary gears；The hydraulic power stream and mechanical output stream finally converged is by stretching epicyclic gearbox
Power output shaft outwards export.When the rotating speed that engine speed fixation is power input shaft is fixed, regulated variable can be passed through
The discharge capacity of hydraulic pump realizes the stepless speed regulation of speed changer, realizes the smoothly adjustable-speed of rotation.With the change of the discharge capacity of volume adjustable hydraulic pump
Change, change occurs in the drive connection of the second planetary gears, i.e. certain change occurs in the drive path of power flow；When
When there is the power flow required for hydraulic power stream is more than output, the power input module of the second planetary gears only has its row
Carrier, the power from motor drive shaft respectively by the second planetary gears distribute after, one power by its gear ring export to
Power output shaft, another strand of power are transferred to the pump shaft of variable pump by its sun gear by driving gear set；When hydraulic part
When power flow is less than power needed for output, the input module of the second planetary gears includes its planet carrier and its sun gear, defeated
It is its gear ring to go out component, so as to be exported after the power from motor drive shaft and gear drive group is coupled to power output shaft.
Two groups of planetary gearsets are mainly included using hydraulic machinery composite transmission of the present utility model, stepless speed regulation can be realized, are protected
The stationarity of speed changer output speed switching is demonstrate,proved, reduces impact, improves the dynamic property of vehicle.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model；As illustrated, the hybrid mechanical-hydraulic Composite Transmission of the present embodiment
Device, including power input shaft 21, power output shaft 13 and for the power of the power output shaft 13 to be transferred into power
The Composite Transmission component of output shaft 13；The Composite Transmission component includes volume adjustable hydraulic pump 4, exports the volume adjustable hydraulic pump 4
Liquid pressure energy be converted to rotational power volume adjustable hydraulic pump 4, the first planetary gears and the second planetary gears and
Driving gear set；First planetary gears is used to distribute the power that power input shaft 21 inputs to the power output
Axle 13 and driving gear set, and power is transferred to by driving gear set the input of the volume adjustable hydraulic pump 4；Described second
The planet carrier 18 of planetary gears is used to receive the power that the volume adjustable hydraulic pump 4 exports, and its gear ring 14 is connected in institute
Power output shaft 13 is stated, power to the transmission of variable pump input or can be passed through transmission by its sun gear 17 by driving gear set
Gear train receives a part of power distributed by the first planetary gears；The compound biography of hybrid mechanical-hydraulic of the present embodiment
Dynamic device, engine 1 connects power input shaft 21, when engine 1 works, drives the first planet tooth on power input shaft 21
The planet carrier 23 of wheel mechanism rotates, and its sun gear 19 and gear ring 22 respectively distribute power to power output shaft 13 and travelling gear
Group, driving gear set pass to power flow the pump shaft 5 of variable pump, drive volume adjustable hydraulic pump 4 to rotate；Volume adjustable hydraulic pump 4 passes through
Hydraulic circuit 3 is connected with variable hydraulic motor 12, imparts power to variable hydraulic motor 12；Variable hydraulic motor 12 drive with
The rotation of its motor drive shaft 11 being connected, the motor output gear 10 on motor drive shaft 11 rotate and with the second planetary gear
The external gear engagement of the planet carrier 18 of mechanism, hydraulic power is spread the planet carrier 18 for passing the second planetary gears；Transmission
The second travelling gear 9 in gear train engages with the 17 co-axially fixed gear of sun gear of the second planetary gears, and driving should
Sun gear 17 is rotated, and the power flow of mechanical part is transferred to the sun gear 17 of the second planetary gears；Two bursts of power flows exist
Confluxed at second planetary gears, the rotation of power output shaft 13 influences the sun gear of the first planetary gears simultaneously
19 rotation；The hydraulic power stream and mechanical output stream finally converged by stretch out epicyclic gearbox 2 power output shaft 13 to
Outer output.When the rotating speed that the rotating speed fixation of engine 1 is power input shaft 21 is fixed, the row of regulated variable hydraulic pump 4 can be passed through
Amount realizes the stepless speed regulation of speed changer, realizes the smoothly adjustable-speed of rotation.With the change of the discharge capacity of volume adjustable hydraulic pump 4, the second row
Change occurs in the drive connection of star gear mechanism, i.e. certain change occurs in the drive path of power flow；When there is hydraulic pressure
When power flow is more than the power flow required for output, the power input module of the second planetary gears only has its planet carrier 18,
After power from motor drive shaft 11 is distributed by the second planetary gears respectively, one power is exported to dynamic by its gear ring 14
Power output shaft 13, another strand of power are transferred to the pump shaft 5 of variable pump by its sun gear 17 by driving gear set；Work as hydraulic part
Power flow when being less than power needed for output, the input module of the second planetary gears includes its planet carrier 18 and its sun gear
17, output precision is its gear ring 14, so as to be exported after the power from motor drive shaft 11 and gear drive group is coupled to dynamic
Power output shaft 13.Two groups of planetary gearsets are mainly included using hydraulic machinery composite transmission of the present utility model, can be realized
Stepless speed regulation, ensure the stationarity of speed changer output speed switching, reduce impact, improve the dynamic property of vehicle.
In the present embodiment, the planet carrier 23 of first planetary gears is connected in the power input shaft 21,
Its sun gear 19 is connected in the power output shaft 13, and its gear ring 22 is used for power to driving gear set transmission, and first
Planetary gears is used to distribute the power that power input shaft 21 inputs to power output shaft 13 and driving gear set, driving cog
Wheel transmits between pump input gear 6, the first planetary gears gear ring 22 and the three of the second planetary gears sun gear 17
Power, when the power flow required for hydraulic power stream occur and being more than output, the first planetary gears gear ring 22 and the second row
Star gear mechanism sun gear 17 simultaneously by driving gear set by power to the passing power of pump input gear 6, when hydraulic part
When power flow is less than power needed for output, the power from the first planetary gears gear ring 22 passes through a driving gear set part
Hydraulic pump pump shaft 5 is transferred to, a part is transferred to the sun gear 17 of the second planetary gears.
In the present embodiment, the driving gear set includes the He of gear ring 22 that transmission simultaneously is matched with the first planetary gears
First travelling gear 7 of the pump input gear 6 being fixed on variable pump pump shaft 5, the sun gear 17 with the second planetary gears
In being driven the second travelling gear 9 coordinated and being coaxially fixed between the travelling gear 9 of the first travelling gear 7 and second
Axle 8.
In the present embodiment, the gear ring of first planetary gears and the planet carrier 18 of the second planetary gears are same
Axle is fixed with external gear；First travelling gear 7 is engaged in the planetary gears gear ring 22 of pump input gear 6 and first simultaneously
External gear；The external gear of the planet carrier 18 of second planetary gears is engaged in the motor drive shaft for being fixed on the variable fluid motor
Motor output gear 10 on 11.
In the present embodiment, the volume adjustable hydraulic pump 4 and variable hydraulic motor 12 are Double-directional rotary mechanism, i.e. volume adjustable hydraulic pump
4 pump shaft 5 can either turn clockwise, the enough rotate counterclockwises of and can, that is, can realize two-way fuel feeding, press oil port and inlet port
Can reversal connection, the motor drive shaft 11 of variable hydraulic motor 12 can rotate forward and can also invert.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (5)
- A kind of 1. hybrid mechanical-hydraulic compound gearing, it is characterised in that：Including power input shaft, power output shaft and For the power of the power output shaft to be transferred to the Composite Transmission component of power output shaft；The Composite Transmission component includes Volume adjustable hydraulic pump, volume adjustable hydraulic pump, the first row that the liquid pressure energy that the volume adjustable hydraulic pump exports is converted to rotational power Star gear mechanism and the second planetary gears and driving gear set；First planetary gears is used to distribute the power of power input shaft input to the power output shaft and transmission Gear train, and power is transferred to by driving gear set the input of the volume adjustable hydraulic pump；The planet carrier of second planetary gears is used for the power for receiving the volume adjustable hydraulic pump output, and the transmission of its gear ring connects The power output shaft is connected to, power to the transmission of variable pump input or can be passed through biography by its sun gear by driving gear set Moving gear group receives a part of power distributed by the first planetary gears.
- 2. hybrid mechanical-hydraulic compound gearing according to claim 1, it is characterised in that：The first planet tooth The planet carrier of wheel mechanism is connected in the power input shaft, and its sun gear is connected in the power output shaft, its tooth Enclose for by power to driving gear set transmission.
- 3. hybrid mechanical-hydraulic compound gearing according to claim 2, it is characterised in that：The driving gear set Including transmission simultaneously be matched with the first planetary gears gear ring and the pump input gear being fixed on variable pump pump shaft the One travelling gear, the second travelling gear coordinated with the transmission of the sun gear of the second planetary gears and it is coaxial be fixed on described in Axis between first travelling gear and the second travelling gear.
- 4. hybrid mechanical-hydraulic compound gearing according to claim 3, it is characterised in that：The first planet tooth The planet carrier of the gear ring and the second planetary gears of taking turns mechanism is fixed with external gear；First travelling gear is engaged in simultaneously The external gear of pump input gear and the first planetary gears gear ring；The external gear of second planetary gears planet carrier is engaged in The motor output gear being fixed on the motor drive shaft of the variable fluid motor.
- 5. hybrid mechanical-hydraulic compound gearing according to claim 4, it is characterised in that：The volume adjustable hydraulic pump It is Double-directional rotary mechanism with variable hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690988.8U CN206785965U (en) | 2017-06-14 | 2017-06-14 | Hybrid mechanical-hydraulic compound gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690988.8U CN206785965U (en) | 2017-06-14 | 2017-06-14 | Hybrid mechanical-hydraulic compound gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785965U true CN206785965U (en) | 2017-12-22 |
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ID=60716124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720690988.8U Expired - Fee Related CN206785965U (en) | 2017-06-14 | 2017-06-14 | Hybrid mechanical-hydraulic compound gearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN206785965U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350799A (en) * | 2020-02-15 | 2020-06-30 | 江苏大学 | Multi-pump driving single-motor mechanical-hydraulic compound transmission device and control method thereof |
| CN111609111A (en) * | 2019-02-26 | 2020-09-01 | 罗伯特·博世有限公司 | Stacked transmission |
| CN112128336A (en) * | 2020-08-03 | 2020-12-25 | 江苏大学 | Multi-mode continuously variable transmission with coupled rotating speed and torque |
| CN112128338A (en) * | 2020-08-03 | 2020-12-25 | 江苏大学 | Mechanical-hydraulic composite transmission device with participation of double hydraulic transmission mechanisms |
-
2017
- 2017-06-14 CN CN201720690988.8U patent/CN206785965U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609111A (en) * | 2019-02-26 | 2020-09-01 | 罗伯特·博世有限公司 | Stacked transmission |
| CN111350799A (en) * | 2020-02-15 | 2020-06-30 | 江苏大学 | Multi-pump driving single-motor mechanical-hydraulic compound transmission device and control method thereof |
| CN111350799B (en) * | 2020-02-15 | 2022-08-23 | 江苏大学 | Multi-pump driving single-motor mechanical-hydraulic compound transmission device and control method thereof |
| CN112128336A (en) * | 2020-08-03 | 2020-12-25 | 江苏大学 | Multi-mode continuously variable transmission with coupled rotating speed and torque |
| CN112128338A (en) * | 2020-08-03 | 2020-12-25 | 江苏大学 | Mechanical-hydraulic composite transmission device with participation of double hydraulic transmission mechanisms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20190614 |