CN205365238U - Power drive system based on single file star is arranged two and is kept off derailleur - Google Patents

Power drive system based on single file star is arranged two and is kept off derailleur Download PDF

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Publication number
CN205365238U
CN205365238U CN201620075020.XU CN201620075020U CN205365238U CN 205365238 U CN205365238 U CN 205365238U CN 201620075020 U CN201620075020 U CN 201620075020U CN 205365238 U CN205365238 U CN 205365238U
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CN
China
Prior art keywords
clutch
gear
row
output shaft
drive motor
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Expired - Fee Related
Application number
CN201620075020.XU
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Chinese (zh)
Inventor
雷雨龙
陈魏
扈建龙
侯利国
魏庆凯
于洋
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Jilin University
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Jilin University
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Priority to CN201620075020.XU priority Critical patent/CN205365238U/en
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Publication of CN205365238U publication Critical patent/CN205365238U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a power drive system based on single file star is arranged two and is kept off derailleur, which comprises a housin. Driving motor is including the driving motor axle, double row star gear planet row, first planet wheel and second planet wheel are connected jointly to its planet carrier, and the planet carrier is fixed simultaneously on the casing, the driving motor axle is connected to the sun gear, the output shaft, its rotatable support is in on the casing for output power, first clutch, selective combination and separation the ring gear with the output shaft, the second clutch, selective combination and separation the sun gear with the output shaft, wherein, when elected alternative kept off, first clutch combined and the 2nd clutch release, when selecting two to keep off, a clutch release is and the combination of second clutch. The utility model discloses it is less to have part quantity, compact structure, the installation of being convenient for to there are two kinds of mode in motor and the generator in driving motor, improves whole car energy use rate, reaches the effect of energy saving.

Description

A kind of power drive system based on single planetary row two shift transmission
Technical field
This utility model relates to driving field, is specifically related to a kind of power drive system based on single planetary row two shift transmission.
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, and compared with traditional drive system, electric driving system for electric automobile has very big advantage, is especially embodied in environmental conservation aspect.Arrangement form many employings parallel-axis type of existing electric motor car two shift transmission and planet row type, adopt two shift transmissions of parallel-axis type arrangement form, many switchings being realized gear by lock unit or clutch, the switching realizing gear according to lock unit etc. has as a drawback that, it is accomplished by separately installed gear shifting actuating mechanism, make drive system volume increase, be not easy to the layout of car load, and shift process exists the situation of power interruption;For adopting two shift transmissions of planet row type arrangement form, being mostly by the incompatible switching realizing gear of clutch or brake groups, but have the drawback that gearshift executive component is relatively decentralized, the size of variator causes greatly drive system compact not.
Summary of the invention
A purpose of the present utility model is the shortcoming solving above-mentioned planet row type power drive system, and provides the advantage that at least will be described later.
This utility model is it is also an object that carry out Proper Match by permagnetic synchronous motor, dual planetary gear planet row and clutch, direct driving motor is bulky, performance requirement is high and tool shift of transmission power interruption problem in solution, 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 is it is also an object that there are motor and two kinds of mode of operations of electromotor in drive motor, and when car load is in damped condition, drive motor is converted to generator mode, it is possible to reclaims braking energy and improves the utilization rate of car load energy.
In order to realize according to these purposes of the present utility model and further advantage, it is provided that a kind of power drive system based on single planetary row two shift transmission, including:
Housing;
Drive motor, it is arranged in described housing, and includes drive motor axle;And
Dual planetary gear planet row, including the first row star-wheel, the second planetary gear, sun gear, ring gear and planet carrier;Wherein, described planet carrier connects the first row star-wheel and the second planetary gear jointly, and described planet carrier is also secured on described housing, and described sun gear connects drive motor axle;
Output shaft, it is rotatably supported on described housing, is used for exporting power;
First clutch, it is arranged between described ring gear and described output shaft, optionally combines and separate described ring gear and described output shaft;
Second clutch, it is arranged between described sun gear and described output shaft, optionally combines and separate described sun gear and described output shaft;And
Cylindrical shape connects hub, and its center has the through hole for described output shaft traverse, connects the hub described output shaft of fixing connection in cylindrical shape described in described through hole;
Prop up support plate, its described sun gear of fixing connection, it is possible to described sun gear coaxial rotating;
Described support plate optionally connects described cylindrical shape by first clutch and connects the inwall of hub;
Described ring gear optionally connects described cylindrical shape by second clutch and connects the outer wall of hub;
Wherein, when selecting a gear, first clutch combines and second clutch separates;When selecting two gears, first clutch separates and second clutch combines.
Preferably, described drive motor also includes:
Rotor, its fixing connection drive motor axle;
Stator, it is fixedly connected with the casing.
Preferably, described housing includes the first accommodation chamber and second and holds chamber, arranges inwall between described first accommodation chamber and the second accommodation chamber.
Preferably, described first holds laying drive motor in chamber, and described second holds laying dual planetary gear planet row in chamber.
Preferably, described planet carrier is fixing connects described inwall.
Preferably, described the first row star-wheel and the second planetary gear connect planet carrier by needle bearing.
Preferably, described sun gear engages described the first row star-wheel, and described the first row star-wheel engages described second planetary gear, and described second planetary gear engages described ring gear.
Preferably, described drive motor switches to generator mode when car is braked.
Preferably, when selecting to reverse gear, described first clutch connects output shaft, and second clutch disconnects, and the Reverse Power of described drive motor is transferred to output shaft by ring gear.
This utility model at least includes following beneficial effect: 1, power drive system is by drive motor, and a set of dual planetary gear planet row and clutch assembly form, and number of parts is less, compact conformation, it is easily installed, and in transmission process, meshed gears number is less, is effectively improved transmission efficiency.2, permanent-magnet synchronous driving motor and two shift transmissions are adopted to become one, reduce and raw-material make consumption, effectively reduce the cost of power drive system, 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.3, drive motor can realize reversion, so realizing reversing gear by motor reversal, eliminates the gear shifting actuating mechanism reversed gear, and structure is compacter, and control of reversing gear is simple, easily realizes.4, there are motor and two kinds of mode of operations of electromotor in drive motor, and when car load is in damped condition, drive motor is converted to generator mode, plays Brake energy recovery, improves the utilization rate of car load energy, reaches to save the effect of the energy.
Part is embodied by further advantage of the present utility model, target and feature by description below, and part also will by being understood by those skilled in the art research of the present utility model and practice.
Accompanying drawing explanation
Fig. 1 is the power drive system structural representation of single planetary row two speed transmission of the present utility model.
Fig. 2 is the sectional view of the power drive system of single planetary row two speed transmission of the present utility model.
Fig. 3 is dual planetary gear planet row structure schematic diagram of the present 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.
Should be appreciated that used herein such as " have ", existence or the interpolation of other elements one or more or its combination do not allotted in " comprising " and " including " term.
Figures 1 and 2 show that the power drive system structure of single planetary row two speed transmission, including housing 110, drive motor 120, dual planetary gear planet row 130, clutch assembly 140 and output shaft 150.Wherein, dual planetary gear planet row 130 and clutch assembly 140 gear is formed.
Housing 110 includes the first accommodation chamber and second and holds chamber, hold first and between chamber and the second accommodation chamber, inwall is set, drive motor 120 is arranged in the first accommodation chamber, the drive motor axle 123 of drive motor 120 holds chamber from first and enters the second accommodation chamber through inwall, gear is arranged in the second accommodation chamber, and output shaft 150 holds chamber from second and passes to housing 110 outside.
Drive motor 120 includes stator 121, rotor 122 and drive motor axle 123, and wherein drive motor stator 121 is connected by interference fit is fixing with housing 110, and drive motor axle 123 is connected by interference fit with rotor 122.
During driving, drive motor 120 is in electric motor mode, and during braking, drive motor 120 is in generator mode.
As it is shown on figure 3, dual planetary gear planet row 130 includes sun gear 131, the first row star-wheel the 132, second planetary gear 133, ring gear 134 and dual planetary gear planet carrier 135.Wherein, sun gear 131 is connected with drive motor axle 123 outfan by spline, and sun gear 131 engages with the first row star-wheel 132, and the first row star-wheel 132 and the second planetary gear 133 engage, the second planetary gear 133 and ring gear 134 internal messing;Wherein, the first row star-wheel 132 and the second planetary gear 133 are arranged on dual planetary gear planet carrier 135 each through needle bearing, and dual planetary gear planet carrier 135 is fixed on housing 110.
When drive motor axle 123 rotates, the equidirectional rotation of sun gear 131, dual planetary gear planet carrier 135 and housing are fixed together, the first row star-wheel 132 and the second planetary gear 133 are only around the axle rotation of dual planetary gear planet carrier 135, do not revolve round the sun, the rotation rotating through the first row star-wheel 132 and the second planetary gear 133 of sun gear 131, is delivered to ring gear 134, and ensures that the rotation direction of ring gear 134 is consistent with the rotation direction of sun gear 131.
Clutch assembly 140 includes first clutch 141 (normally opened), second clutch 142 (normally opened), cylinder type connection hub 143 and a support plate 144, first clutch 141 (normally opened) one end is fixing connects ring gear 134, the other end separates or connects the outer wall of hub 143 in conjunction with cylinder type, wherein, described cylinder type connects hub 143 center and offers through hole, and output shaft 150 is connected the fixing connection of hub 143 through through hole with cylinder type;Second clutch 142 (normally opened) one end separates or a combination support plate 144, and the other end fixes the inwall connecting cylinder type connection hub 143, and wherein, a support plate 144 and drive motor axle 123 are fixed and connected.When first clutch 141 works, ring gear 134 connects first clutch 141, and first clutch 141 is connected the outer wall of hub 143 and combines closely with cylinder type, so that being connected the fixing output shaft 150 connected of hub 143 with cylinder type and ring gear 134 is synchronized with the movement;When second clutch 141 works, with the fixing support plate 144 connected of drive motor axle 123 in conjunction with second clutch 142, the fixing cylinder type connected of second clutch 142 connects hub 143 inwall, so that drive motor axle 123 and output shaft 150 are synchronized with the movement.
The gear switching of power drive system is realized by clutch assembly 140, and the gearshift executive component of power drive system carries out according to table one.
The gear of table one power drive system performs figure
Wherein, "○" represents that separation, "●" represent combination, Cl1Represent first clutch 141, Cl2Represent second clutch 142.
During one gear, drive motor 120 rotates forward (direction of motor rotation realizing car load advance is forward direction), driving sun gear 131 to rotate, planet carrier 135 maintains static the rotation making the first row star-wheel 132 and the second planetary gear 133, and power is delivered to ring gear 134, now, first clutch 141 (normally opened) works, and namely combines, and ring gear 134 connects hub 143 with cylinder type and is combined, so that ring gear 134 and output shaft 150 are synchronized with the movement, it is achieved the output of power;Second clutch 142 (normally opened) does not work, and namely maintains a normally open state, and a support plate 144 and cylinder type connect hub 143 and separate, so that drive motor axle 123 and output shaft 150 not transmission.
During two gears, drive motor 120 rotates forward, and drives sun gear 131 to rotate, and planet carrier 135 maintains static the rotation making the first row star-wheel 132 and the second planetary gear 133, power is delivered to ring gear 134, first clutch 141 (normally opened) does not work, and namely maintains a normally open state, ring gear 134 and output shaft 150 and does not combine, second clutch 142 (normally opened) works, namely combine, drive motor axle 123 is connected with output shaft 150, power is directly exported.
During one gear, drive motor 120 transfers power to sun gear 131 by drive motor axle 123, first clutch 141 (normally opened) combines, power is delivered to output shaft 150 by ring gear 134, one gear rises two gear processes, first clutch 141 (normally opened) separates, second clutch 142 (normally opened) combines, power is directly delivered to output shaft 150 by sun gear 131, and ensures that the continuous of power transmits by controlling first clutch 141 (normally opened) and second clutch 142 (normally opened).
During two gears, second clutch 142 (normally opened) combines, power is directly delivered to output shaft 150 by drive motor axle 123 by drive motor 120, one gear process drops in two gears, second clutch 142 (normally opened) separates, first clutch 141 (normally opened) combines, drive motor 120 is delivered to sun gear 131 by drive motor axle 123, again through the first row star-wheel 132 and the second planetary gear 133, it is delivered to ring gear 134, it is delivered to output shaft 150 finally by ring gear 134, and realize the smooth of gear switch by controlling first clutch 141 (normally opened) and second clutch 142 (normally opened), reach the effect of smooth shift.
When reversing gear, drive motor 120 reverses (contrary with forward direction), driving sun gear 131 to rotate, planet carrier 135 maintains static the rotation making the first row star-wheel 132 and the second planetary gear 133, and power is delivered to ring gear 134, now, first clutch 141 (normally opened) works, and namely combines, and ring gear 134 connects hub 143 with cylinder type and is combined, so that ring gear 134 and output shaft 150 are synchronized with the movement, it is achieved the output of power;Second clutch 142 (normally opened) does not work, and namely maintains a normally open state, and a support plate 144 and cylinder type connect hub 143 and separate, so that drive motor axle 123 and output shaft 150 not transmission, make car load swing to traveling.
During neutral, first clutch 141 (normally opened) and second clutch 142 (normally opened) all keep off position so that drive motor axle 123 and output shaft 150 are in released state, have cut off the transmission of power.
When car load need to be braked with a gear traveling, drive motor 120 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 120 is switched to generator mode by electric motor mode, and second clutch 142 (normally opened) separates, and first clutch 141 (normally opened) combines, drive system is played dragging effect, improves Brake energy recovery efficiency.
As it has been described above, this utility model has the advantages that 1, power drive system by drive motor, a set of dual planetary gear planet row and clutch assembly composition, number of parts is less, compact conformation, it is simple to install, and in transmission process, meshed gears number is less, is effectively improved transmission efficiency.2, permanent-magnet synchronous driving motor and two shift transmissions are adopted to become one, reduce and raw-material make consumption, effectively reduce the cost of power drive system, 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.3, drive motor can realize reversion, so realizing reversing gear by motor reversal, eliminates the gear shifting actuating mechanism reversed gear, and structure is compacter, and control of reversing gear is simple, easily realizes.4, there are motor and two kinds of mode of operations of electromotor in drive motor, and when car load is in damped condition, drive motor is converted to generator mode, plays Brake energy recovery, improves the utilization rate of car load energy, reaches to save the effect of the energy.
Although embodiment of the present utility model is disclosed as above, but it is not restricted in description and embodiment listed utilization.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 (9)

1. the power drive system based on single planetary row two shift transmission, it is characterised in that including:
Housing;
Drive motor, it is arranged in described housing, and includes drive motor axle;And
Dual planetary gear planet row, including the first row star-wheel, the second planetary gear, sun gear, ring gear and planet carrier;Wherein, described planet carrier connects the first row star-wheel and the second planetary gear jointly, and described planet carrier is also secured on described housing, and described sun gear connects drive motor axle;
Output shaft, it is rotatably supported on described housing, is used for exporting power;
First clutch, it is arranged between described ring gear and described output shaft, optionally combines and separate described ring gear and described output shaft;
Second clutch, it is arranged between described sun gear and described output shaft, optionally combines and separate described sun gear and described output shaft;And
Cylindrical shape connects hub, and its center has the through hole for described output shaft traverse, connects the hub described output shaft of fixing connection in cylindrical shape described in described through hole;
Prop up support plate, its described sun gear of fixing connection, it is possible to described sun gear coaxial rotating;
Described support plate optionally connects described cylindrical shape by first clutch and connects the inwall of hub;
Described ring gear optionally connects described cylindrical shape by second clutch and connects the outer wall of hub;
Wherein, when selecting a gear, first clutch combines and second clutch separates;When selecting two gears, first clutch separates and second clutch combines.
2. the power drive system based on single planetary row two shift transmission as claimed in claim 1, it is characterised in that described drive motor also includes:
Rotor, its fixing connection drive motor axle;
Stator, it is fixedly connected with the casing.
3. the power drive system based on single planetary row two shift transmission as claimed in claim 1 or 2, it is characterised in that described 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 two shift transmission as claimed in claim 3, it is characterised in that described first holds laying drive motor in chamber, described second holds laying dual planetary gear planet row in chamber.
5. the power drive system based on single planetary row two shift transmission as claimed in claim 4, it is characterised in that described planet carrier is fixing connects described inwall.
6. the power drive system based on single planetary row two shift transmission as claimed in claim 1, it is characterised in that described the first row star-wheel and the second planetary gear connect planet carrier by needle bearing.
7. the power drive system based on single planetary row two shift transmission as claimed in claim 6, it is characterised in that described sun gear engages described the first row star-wheel, described the first row star-wheel engages described second planetary gear, and described second planetary gear engages described ring gear.
8. the power drive system based on single planetary row two shift transmission as described in claim 5 or 7, it is characterised in that described drive motor switches to generator mode when car is braked.
9. the power drive system based on single planetary row two shift transmission as claimed in claim 8, it is characterized in that, when selecting to reverse gear, described first clutch connects output shaft, second clutch disconnects, and the Reverse Power of described drive motor is transferred to output shaft by ring gear.
CN201620075020.XU 2016-01-26 2016-01-26 Power drive system based on single file star is arranged two and is kept off derailleur Expired - Fee Related CN205365238U (en)

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CN201620075020.XU CN205365238U (en) 2016-01-26 2016-01-26 Power drive system based on single file star is arranged two and is kept off derailleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620075020.XU CN205365238U (en) 2016-01-26 2016-01-26 Power drive system based on single file star is arranged two and is kept off derailleur

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105501057A (en) * 2016-01-26 2016-04-20 吉林大学 Electric driving system based on single-planet-row two-gear transmission
CN108016292A (en) * 2017-11-29 2018-05-11 东南(福建)汽车工业有限公司 A kind of two grades of electric drive assemblies and method for changing speed
CN111734796A (en) * 2020-08-03 2020-10-02 北京航空航天大学 2-gear speed change mechanism for electric vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105501057A (en) * 2016-01-26 2016-04-20 吉林大学 Electric driving system based on single-planet-row two-gear transmission
CN105501057B (en) * 2016-01-26 2018-10-16 吉林大学 A kind of power drive system based on single planetary row two-gear transmission
CN108016292A (en) * 2017-11-29 2018-05-11 东南(福建)汽车工业有限公司 A kind of two grades of electric drive assemblies and method for changing speed
CN111734796A (en) * 2020-08-03 2020-10-02 北京航空航天大学 2-gear speed change mechanism for electric vehicle

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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

Granted publication date: 20160706

Termination date: 20210126

CF01 Termination of patent right due to non-payment of annual fee