CN205371487U - Power drive system based on single file star row - Google Patents
Power drive system based on single file star row Download PDFInfo
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- CN205371487U CN205371487U CN201620066242.5U CN201620066242U CN205371487U CN 205371487 U CN205371487 U CN 205371487U CN 201620066242 U CN201620066242 U CN 201620066242U CN 205371487 U CN205371487 U CN 205371487U
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- gear
- planet
- drive system
- row
- planet row
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Abstract
The utility model discloses a power drive system based on single file star row, include: the actuating system casing, driving motor, it sets up in the actuating system casing to the output shaft that has output power, epicyclie gear, it includes planet row sun gear, planet seniority among brothers and sisters star gear, planet row planet carrier and planet row ring gear, wherein, sun gear, its connection are arranged to the planet driving motor's output shaft, the planet carrier is arranged to the planet, its fixed connection output shaft, and output shaft fixed connection power take -off, the clutch, it sets up driving motor's output shaft with the planet is arranged between the planet carrier, the stopper, its set up the actuating system casing with the planet is arranged between the ring gear. The utility model has the characteristics of there are not the power interrupt in design compact structure, the in -process of shifting, control is reversed gear and is realized simple, whole car energy utilization height, effective energy utilization and saving.
Description
Technical field
This utility model relates to driving field, is specifically related to a kind of power drive system based on single planetary row.
Background technology
Electric automobile is novel, energy-saving and environmental protection vehicle, particularly in, under the overall situation that current air pollution is serious, having huge development potentiality and wide application prospect.Electric automobile uses motor to instead of the electromotor of orthodox car, and motor can band load start, and meets automobile instructions for use by reasonably configuration, and this is the very big difference with electromotor.Electric motor car use multi-shifting speed variator improper, if but cancel variable speed drive, then it is difficult to take into account automobile climbing and runs at high speed and wait requirement, particularly small and medium-sized car, it is necessary to for the dynamical system of the operating characteristic redesign electric automobile of motor.
Current electric driving system for electric automobile is increasingly subject to the favor of people, through the retrieval of prior art is found, and the electric motor car arrangement form of the two existing employing parallel-axis types of shift transmission, there is again the arrangement form adopting planet row type.For adopting two shift transmissions of parallel-axis type arrangement form, how realized the switching of gear by lock unit or clutch;For adopting two shift transmissions of planet row type arrangement form, it is mostly by the incompatible switching realizing gear of clutch or brake groups.
Utility model content
This utility model has designed and developed a kind of power drive system based on single planetary row.This utility model is primarily directed to the high and used for electric vehicle mechanical transmission shifting power disruption of the bulky performance requirement of direct driving motor used for electric vehicle, pass through Proper Match, effectively solve the high and used for electric vehicle mechanical transmission shifting power disruption of the bulky performance requirement of direct driving motor used for electric vehicle, the structure making drive system is compacter, it is easily installed, also reduce the performance requirement to motor, decrease the complexity of control system, improve motor operational efficiency, add the continual mileage of electric motor car.
This utility model has in design compact conformation, shift process to be absent from power interruption, control to reverse gear that realization is simple, car load capacity usage ratio high, the energy effectively utilizes and the feature saved.
The technical scheme that this utility model provides is:
A kind of power drive system based on single planetary row, including:
Drive system housing;
Drive motor, it is arranged in drive system housing, and has the drive motor axle of output power;
Epicyclic train, it includes planet row sun gear, planet row planetary gear, planet row planet carrier and planet row ring gear;
Described planet row sun gear, it connects described drive motor axle;
PTO, its described planet row planet carrier of fixing connection, and described planet row ring gear are rotatably supported in described PTO;
Clutch, it is arranged between described drive motor axle and described planet row planet carrier, optionally makes described drive motor axle and described planet row planet carrier combine and separate;
Brake, it is arranged between described drive system housing and described planet row ring gear, optionally makes described drive system housing and described planet row ring gear combine and separate;
Wherein, when selecting a gear, described clutch separation, described brake combines;When selecting two gears, described clutch combines, and described brake separates.
Preferably, described drive motor also includes:
Rotor, its described drive motor axle of fixing connection;
Stator, its described drive system housing of fixing connection.
Preferably, described drive system housing includes the first housing and the second housing;
Wherein, described first housing includes the first accommodation chamber and second and holds chamber, arranges inwall between described first accommodation chamber and the second accommodation chamber.
Preferably, hold described first and chamber is laid described drive motor, described epicyclic train is laid in described second accommodation chamber.
Preferably, in described second housing, lay described PTO, comprising:
Differential mechanism;
Main reducing gear, its described differential casing of fixing connection;
Output gear, it connects described planet row planet carrier and and described main reducing gear engagement by output shaft is fixing.
Preferably, described main reducing gear includes main deceleration driving gear and main reduction driven gear, and described main reducing gear driven gear is connected with described differential casing.
Preferably, also include:
The clutch disk of described clutch is connected with described drive motor axle, and the clutch hub of described clutch is connected with described planet row planet carrier;
The braking dish of described brake is connected with described planet row ring gear, and the brake hub of described brake is connected with described drive system housing.
Preferably, also include:
Holding in chamber described first, described drive motor axle is rotatably supported on described inwall, and the upper through hole passing described inwall is connected with described planet row sun gear;Holding in chamber described second, described output shaft passes the described second through hole holding on chamber and fixes with described main deceleration driving gear and be connected;
Described second housing has through accommodation chamber, and the left half axle of described differential mechanism and right axle shaft are each passed through described through accommodation chamber and stretch out, and are rotatably supported in described through accommodation chamber.
Preferably, described drive motor switches to generator mode when car is braked.
Preferably, when selecting to reverse gear, described clutch separation, described brake combines, and the Reverse Power of described drive motor is transferred to output shaft by described planet row planet carrier.
This utility model is had the advantages that compared with prior art
1, electric drive axle system described in the utility model is made up of drive motor, single planetary row assembly, compact conformation, it is simple to installing, meanwhile, in transmission process, meshed gears number is less, is effectively improved transmission efficiency;
2, drive motor and two shift transmissions become one, reduce and raw-material make consumption, effectively reduce the cost of power drive system, drive motor can realize reversion, so realizing reversing gear by motor reversal, eliminating the gear shifting actuating mechanism reversed gear, structure is compacter, and control of reversing gear is simple, easily realizes;
3, there are two kinds of mode of operations in drive motor, when car load is in driving operating mode, drive motor is in motor operation mode, travel for car load and power is provided, when car load is in damped condition, drive motor is converted to generator mode, plays Brake energy recovery, improve the utilization rate of car load energy, reach to save the effect of the energy.
Accompanying drawing explanation
Fig. 1 is structural representation described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
As shown in Figure 1, this utility model provides a kind of power drive system based on single planetary row, comprising: electric driver is by motor part, transmission portion, differential portion, main reducing gear part and half shaft portion composition, wherein transmission portion is by planet row, brake and clutch composition.
Motor part is made up of drive motor axle 110, stator 120 and rotor 130, and wherein the stator 120 of drive motor is connected with the first housing 101 by interference fit, and the rotor 130 of drive motor is connected with drive motor axle 110 by interference fit.
Drive system housing includes the first housing 101 and the second housing 102, wherein, the first housing includes the first accommodation chamber and second and holds chamber, holds arranging inwall between chamber and the second accommodation chamber first, motor section is divided and is arranged in the first accommodation chamber, and epicyclic train is arranged in the second accommodation chamber;Wherein, holding in chamber first, drive motor axle 110 is rotatably supported on inwall, and the upper through hole passing inwall is connected with planet row sun gear 210;Hold in chamber second, the through hole in output shaft 250 traverse the second accommodation chamber is fixing with deceleration driving gear 251 to be connected, simultaneously, second housing 102 has through accommodation chamber, it is externally connected that left half axle 330 and right axle shaft 340 are each passed through through accommodation chamber, and left half axle 330 and right axle shaft 340 are all rotatably supported in through accommodation chamber.
During driving, drive motor is in electric motor mode, and during braking, drive motor is in generator mode.
Planet row gear train is to be made up of planet row sun gear 210, planet row planetary gear 220, planet row planet carrier 230 and planet row ring gear 240;Wherein, planet row sun gear 210 and drive motor axle 110 are fixed together, the planet row planetary gear 220 engaged with planet row sun gear 210 is arranged on planet row planet carrier 230 by needle bearing, planet row planet carrier 230 is fixing with output shaft 250 to be connected, planet row planet carrier 230 is connected with drive motor axle 110 by the clutch hub of clutch 410, and planet row ring gear 240 is connected with brake 420.
The clutch hub of clutch 410 (normally opened) is connected with planet row planet carrier 230, the clutch disk of clutch 410 (normally opened) is connected with drive motor axle 110, and by the separation of clutch 410 (normally opened), the rotation being implemented in combination in planet row planet carrier 230 and braking.
Braking dish and the planet row ring gear 240 of brake 420 connect, and brake hub and first housing 101 of brake 420 connect, by the separation of brake 420, the separation being implemented in combination with planet row ring gear 240 and the first housing 101 and combination.
Main reducing gear part is by main deceleration driving gear 251, and main reduction driven gear 252 forms.Main deceleration driving gear 251 is fixed on output shaft 250 right-hand member, and main reduction driven gear 252 is connected with differential carrier 300, and main deceleration driving gear 251 is engaged by gear with main reduction driven gear 252.
Differential portion is by differential carrier 300, planetary gear 310, planetary gear axle 320, left half axle gear 311 and right axle shaft gear 312a composition.Wherein differential carrier 300 is connected with main reduction driven gear 252, planetary gear axle 320 is arranged in differential carrier 300, planetary gear 310 is arranged on planetary gear axle 320 by needle bearing, it is connected with left half axle 330 by spline with the left half axle gear 311 of planetary gear 310 engagement, is connected with right axle shaft 340 by spline with the right axle shaft gear 312a of planetary gear 310 engagement.
Half shaft portion is made up of left half axle 330 and right axle shaft 340.Wherein left half axle 330 is arranged on by needle bearing on the first housing 101 and differential carrier 300, and the right-hand member of left half axle 330 is connected with left half axle gear 311 by spline, right axle shaft 340 is arranged on by needle bearing on housing 102 and differential carrier 300, and the left end of right axle shaft 340 is connected with right axle shaft gear 312a by spline.
The gear switching of electric driver is realized by clutch 410 (normally opened) and brake 420.
nullDuring one gear,Drive motor rotates forward,(direction of motor rotation realizing car load advance is forward direction),Clutch 410 (normally opened) does not work,Namely state is maintained a normally open,Planet row planet carrier 230 separates with the first housing 101,Can be freely rotatable,Brake 420 works,Play braking action,Planet row ring gear 240 and the first housing 101 are combined,Namely planet row ring gear 240 is kept to maintain static,The power of drive motor is delivered to planet row sun gear 210 by drive motor axle 110 end,It is delivered to planet row planet carrier 230 then through planet row planetary gear 220,Owing to planet row planet carrier 230 and output shaft 250 are fixed together,So power is delivered to, again through the main deceleration driving gear 251 of output shaft 250 right-hand member, the main reduction driven gear 252 being engaged with,Owing to main reduction driven gear 252 is connected with differential carrier 300,Differential carrier 300 rotates with main reduction driven gear 252,The differential carrier 300 rotated drives connected planetary gear axle 320 to rotate,The planetary gear 310 being arranged on planetary gear axle 320 by needle bearing is revolved round the sun with planet gear shaft 320,And following left semiaxis rotating speed difference generation rotation,Play differential effect,And planetary gear 310 transfers power on the left half axle gear 311 that engages and right axle shaft gear 312b,Left half axle gear 311 drives left half axle 330 to rotate,Right axle shaft gear 312b drives right axle shaft 340 to rotate,Realize the transmission of power.
nullDuring two gears,Drive motor rotates forward,Brake 420 does not work,Namely braking action is not played,Planet row ring gear 240 separates with the first housing 101,Clutch 410 (normally opened) works,Namely combine,Planet row planet carrier 230 is connected with drive motor axle 110,Namely planet rows of planetary frame 230 rotates with drive motor axle 110,The power of drive motor is delivered to planet row sun gear 210 by drive motor axle 110 end,It is delivered to planet row planet carrier 230 then through clutch 410,Owing to planet row planet carrier 230 and output shaft 250 are fixed together,The main reduction driven gear 252 being engaged with is transferred power to again through the main deceleration driving gear 251 of output shaft 250 right-hand member,Owing to main reduction driven gear 252 is connected with differential carrier 300,Differential carrier 300 rotates with main reduction driven gear 252,The differential carrier 300 rotated drives connected planetary gear axle 320 to rotate,The planetary gear 310 being arranged on planetary gear axle 320 by needle bearing is revolved round the sun with planet gear shaft 320,And following left semiaxis rotating speed difference generation rotation,Play differential effect,And planetary gear 310 transfers power on the left half axle gear 311 that engages and right axle shaft gear 312b,Left half axle gear 311 drives left half axle 330 to rotate,Right axle shaft gear 312b drives right axle shaft 340 to rotate,Realize the transmission of power.
One gear rises two gear processes, realizes clutch 410 (normally opened) by shift control unit and is switched to duty by off position, and brake 420 is switched to off position by duty.nullThe power of drive motor is delivered to planet row sun gear 210 by drive motor axle 110 end,It is delivered to planet row planet carrier 230 then through clutch 410,Owing to planet row planet carrier 230 and output shaft 250 are fixed together,The main reduction driven gear 252 being engaged with is transferred power to again through the main deceleration driving gear 251 of output shaft 250 right-hand member,Owing to main reduction driven gear 252 is connected with differential carrier 300,Differential carrier 300 rotates with main reduction driven gear 252,The differential carrier 300 rotated drives connected planetary gear axle 320 to rotate,The planetary gear 310 being arranged on planetary gear axle 320 by needle bearing is revolved round the sun with planet gear shaft 320,And following left semiaxis rotating speed difference generation rotation,Play differential effect,And planetary gear 310 transfers power on the left half axle gear 311 that engages and right axle shaft gear 312b,Left half axle gear 311 drives left half axle 330 to rotate,Right axle shaft gear 312b drives right axle shaft 340 to rotate,Realize the transmission of power.
One gear process drops in two gears, realizes clutch 410 (normally opened) by shift control unit and is switched to off position by duty, and brake 420 is switched to duty by off position.nullThe power of drive motor is delivered to planet row sun gear 210 by drive motor axle 110 end,It is delivered to planet row planet carrier 230 then through planet row planetary gear 220,Owing to planet row planet carrier 230 and output shaft 250 are fixed together,The main reduction driven gear 252 being engaged with is transferred power to again through the main deceleration driving gear 251 of output shaft 250 right-hand member,Owing to main reduction driven gear 252 is connected with differential carrier 300,Differential carrier 300 rotates with main reduction driven gear 252,The differential carrier 300 rotated drives connected planetary gear axle 320 to rotate,The planetary gear 310 being arranged on planetary gear axle 320 by needle bearing is revolved round the sun with planet gear shaft 320,And following left semiaxis rotating speed difference generation rotation,Play differential effect,And planetary gear 310 transfers power on the left half axle gear 311 that engages and right axle shaft gear 312b,Left half axle gear 311 drives left half axle 330 to rotate,Right axle shaft gear 312b drives right axle shaft 340 to rotate,Realize the transmission of power.
nullWhen reversing gear,Drive motor reversion (contrary with forward direction),Clutch 410 (normally opened) does not work,Namely state is maintained a normally open,Planet row planet carrier 230 separates with drive motor axle 110,Can be freely rotatable,Brake 420 works,Play braking action,Planet row ring gear 240 and the first housing 101 are combined,Namely planet row ring gear 240 is kept to maintain static,The power of drive motor is delivered to planet row sun gear 210 by drive motor axle 110 end,It is delivered to planet row planet carrier 230 then through planet row planetary gear 220,Owing to planet row planet carrier 230 and output shaft 250 are fixed together,So power transfers power to the main reduction driven gear 252 being engaged with again through the main deceleration driving gear 251 of output shaft 250 right-hand member,Owing to main reduction driven gear 252 is connected with differential carrier 300,Differential carrier 300 rotates with main reduction driven gear 252,The differential carrier 300 rotated drives connected planetary gear axle 320 to rotate,The planetary gear 310 being arranged on planetary gear axle 320 by needle bearing is revolved round the sun with planet gear shaft 320,And following left semiaxis rotating speed difference generation rotation,Play differential effect,And planetary gear 310 transfers power on the left half axle gear 311 that engages and right axle shaft gear 312b,Left half axle gear 311 drives left half axle 330 to rotate,Right axle shaft gear 312b drives right axle shaft 340 to rotate,Realize the transmission of power.
During neutral, clutch 410 (normally opened) and brake 420 all keep off position so that drive motor axle 110 is in released state with left half axle 330 and right axle shaft 340, has cut off the transmission of power.
When car load need to be braked with a gear traveling, drive motor is switched to generator mode by electric motor mode, and drive system plays dragging effect, and the traveling kinetic energy of car load is converted to electric energy.
When car load need to be braked with two gear travelings, drive motor is switched to generator mode by electric motor mode, and clutch 410 (normally opened) works, and brake 420 does not work, and drive system plays dragging effect, improves the organic efficiency of braking energy.
The gearshift executive component of this power drive system is operated according to table 1.
In table 1, "○" represents that separation, "●" represent that combination, B represent that brake 420, Cl represents clutch 410 (normally opened).
Although embodiment of the present utility model is disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, this utility model is not limited to specific details and shown here as the legend with description.
Claims (10)
1. the power drive system based on single planetary row, it is characterised in that including:
Drive system housing;
Drive motor, it is arranged in drive system housing, and has the drive motor axle of output power;
Epicyclic train, it includes planet row sun gear, planet row planetary gear, planet row planet carrier and planet row ring gear;
Described planet row sun gear, it connects described drive motor axle;
PTO, its described planet row planet carrier of fixing connection, and described planet row ring gear are rotatably supported in described PTO;
Clutch, it is arranged between described drive motor axle and described planet row planet carrier, optionally makes described drive motor axle and described planet row planet carrier combine and separate;
Brake, it is arranged between described drive system housing and described planet row ring gear, optionally makes described drive system housing and described planet row ring gear combine and separate;
Wherein, when selecting a gear, described clutch separation, described brake combines;When selecting two gears, described clutch combines, and described brake separates.
2. the power drive system based on single planetary row as claimed in claim 1, it is characterised in that described drive motor also includes:
Rotor, its described drive motor axle of fixing connection;
Stator, its described drive system housing of fixing connection.
3. the power drive system based on single planetary row as claimed in claim 2, it is characterised in that described drive system housing includes the first housing and the second housing;
Wherein, described first housing includes the first accommodation chamber and second and holds chamber, arranges inwall between described first accommodation chamber and the second accommodation chamber.
4. the power drive system based on single planetary row as claimed in claim 3, it is characterised in that hold described first and lay described drive motor in chamber, lays described epicyclic train in described second accommodation chamber.
5. the power drive system based on single planetary row as claimed in claim 3, it is characterised in that lay described PTO in described second housing, comprising:
Differential mechanism;
Main reducing gear, its described differential casing of fixing connection;
Output gear, it connects described planet row planet carrier and and described main reducing gear engagement by output shaft is fixing.
6. the power drive system based on single planetary row as claimed in claim 5, it is characterised in that described main reducing gear includes main deceleration driving gear and main reduction driven gear, and described main reduction driven gear is connected with described differential casing.
7. the power drive system based on single planetary row as claimed in claim 3, it is characterised in that also include:
The clutch disk of described clutch is connected with described drive motor axle, and the clutch hub of described clutch is connected with described planet row planet carrier;
The braking dish of described brake is connected with described planet row ring gear, and the brake hub of described brake is connected with described drive system housing.
8. the power drive system based on single planetary row as claimed in claim 6, it is characterised in that also include:
Holding in chamber described first, described drive motor axle is rotatably supported on described inwall, and the upper through hole passing described inwall is connected with described planet row sun gear;Holding in chamber described second, described output shaft passes the described second through hole holding on chamber and fixes with described main deceleration driving gear and be connected;
Described second housing has through accommodation chamber, and the left half axle of described differential mechanism and right axle shaft are each passed through described through accommodation chamber and stretch out, and are rotatably supported in described through accommodation chamber.
9. as described in claim 7 based on the power drive system of single planetary row, it is characterised in that described drive motor switches to generator mode when car is braked.
10., as described in claim 7 based on the power drive system of single planetary row, it is characterised in that when selecting to reverse gear, described clutch separation, described brake combines, and the Reverse Power of described drive motor is transferred to output shaft by described planet row planet carrier.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620066242.5U CN205371487U (en) | 2016-01-22 | 2016-01-22 | Power drive system based on single file star row |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620066242.5U CN205371487U (en) | 2016-01-22 | 2016-01-22 | Power drive system based on single file star row |
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CN205371487U true CN205371487U (en) | 2016-07-06 |
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CN201620066242.5U Expired - Fee Related CN205371487U (en) | 2016-01-22 | 2016-01-22 | Power drive system based on single file star row |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105508525A (en) * | 2016-01-22 | 2016-04-20 | 吉林大学 | Electric driving system based on single planet row |
CN108361328A (en) * | 2018-01-25 | 2018-08-03 | 北京长城华冠汽车科技股份有限公司 | Drive axle speed change system |
WO2019109293A1 (en) * | 2017-12-07 | 2019-06-13 | 舍弗勒技术股份两合公司 | Integrated electric drive axle |
-
2016
- 2016-01-22 CN CN201620066242.5U patent/CN205371487U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105508525A (en) * | 2016-01-22 | 2016-04-20 | 吉林大学 | Electric driving system based on single planet row |
WO2019109293A1 (en) * | 2017-12-07 | 2019-06-13 | 舍弗勒技术股份两合公司 | Integrated electric drive axle |
CN108361328A (en) * | 2018-01-25 | 2018-08-03 | 北京长城华冠汽车科技股份有限公司 | Drive axle speed change system |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
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: 20160706 Termination date: 20210122 |