CN205331336U - Power drive system based on double row star is arranged two and is kept off derailleur - Google Patents

Power drive system based on double row star is arranged two and is kept off derailleur Download PDF

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Publication number
CN205331336U
CN205331336U CN201620074970.0U CN201620074970U CN205331336U CN 205331336 U CN205331336 U CN 205331336U CN 201620074970 U CN201620074970 U CN 201620074970U CN 205331336 U CN205331336 U CN 205331336U
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CN
China
Prior art keywords
planet
row
output shaft
gear
mixing
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Withdrawn - After Issue
Application number
CN201620074970.0U
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Chinese (zh)
Inventor
雷雨龙
陈魏
扈建龙
况文兵
张元侠
刘正伟
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Jilin University
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Jilin University
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Priority to CN201620074970.0U priority Critical patent/CN205331336U/en
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Publication of CN205331336U publication Critical patent/CN205331336U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

Abstract

The utility model discloses a power drive system based on double row star is arranged two and is kept off derailleur, include: a housing. Actuating mechanism, the output shaft, the gear train is arranged to the double row star, arranges and second planet row including first planet, and the driving motor axle is connected to first planet row sun gear, and planet carrier fixed connection output shaft is arranged to first planet, and first planet is arranged the ring gear and is connected second planet row planet carrier, and sun gear fixed connection casing is arranged to the second planet, the clutch, it can arrange the ring gear with the second planet by selective connection output shaft, the stopper, it can make the second arrange the planet carrier and first planet row ring gear rotates simultaneously or applies the brake, wherein, during elected alternative shelves, the clutch is out of work, stopper work, when selecting the second gear, clutch work, stopper are out of work. The utility model has the advantages of part quantity is less, compact structure, improved motor operating efficiency and increased the continuous mileage of sailing of electric motor car.

Description

A kind of power drive system based on double planet wheel rows of mixing two shift transmission
Technical field
This utility model relates to driving field, is specifically related to a kind of power drive system based on double planet wheel rows of mixing 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 realizes two grades of speed Control it is also an object that first planet row, the second planet row, clutch and brake are carried out Proper Match, output shaft is carried out speedup by the second planet row engagement clutch and brake, thus reaching the purpose of two grades of speed changes。
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 double planet wheel rows of mixing two shift transmission, including:
Housing;
Driving mechanism, it is arranged in described housing, and includes drive motor axle;
Output shaft, it is rotatably supported on described housing, is used for exporting power;
Double planet wheel rows of mixing gear train, including first planet row and the second planet row, described first planet row's sun gear connects described drive motor axle, first planet seniority among brothers and sisters carrier is fixing connects described output shaft, first planet row's ring gear connects the second planet row planet carrier, and the second planet row sun gear is fixing connects described housing;
Clutch, it is arranged between described output shaft and the second planet row ring gear, optionally makes described output shaft and the second planet row ring gear combine and separate;
Brake, it is arranged between described housing and second row planet carrier, optionally makes to combine between described housing and second row planet carrier and separate;When brake in conjunction with time, described housing and second row planet carrier maintain static;When brake separates, described first planet row's ring gear and second row planet carrier rotate jointly;
Wherein, when selecting one grade, clutch separation and brake combine;When selecting two grades, clutch combines and separates with brake。
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 intracavity lays driving mechanism, and described second holds intracavity lays double planet wheel rows of mixing gear train, and wherein, described drive motor axle connects double planet wheel rows of mixing gear train through inwall。
Preferably, described driving mechanism also includes:
Rotor, its fixing connection drive motor axle;
Stator, it is fixedly connected with the casing。
Preferably, also including circular support dish, its side circle centre position is fixing connects described output shaft, and opposite side connects described first planet seniority among brothers and sisters carrier, it is possible to make first planet seniority among brothers and sisters carrier, a support plate and output shaft rotate together with;The outer rim of described support plate is fixing connects described clutch。
Preferably, described second planet row sun gear also includes the axle highlighted, and its described housing of fixing connection, described axle has axially extending bore, and described output shaft passes and is rotatably supported at described axially extending bore and stretches out outside housing。
Preferably, described driving mechanism includes electric motor mode and generator mode, and when car is braked, drive motor switches to generator mode。
Preferably, when selecting to reverse gear, clutch separation, brake combine, and the Reverse Power of described driving mechanism is ranked carrier by first planet and is transferred to output shaft。
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 double planet wheel rows of mixing two speed transmission 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。
Fig. 1 illustrates the power drive system structure of double planet wheel rows of mixing two speed transmission, including shell 110, drive motor 120, double planet wheel rows of mixing gear train 130, clutch 140, brake 150 and output shaft 160, wherein, double planet wheel rows of mixing gear train 130, clutch 140 and brake 150 form transmission mechanism。
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, transmission mechanism is arranged in the second accommodation chamber, and output shaft 160 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。
Double planet wheel rows of mixing gear train 130 includes first planet row and the second planet row, and described first planet row is arranged sun gear 131, first planet seniority among brothers and sisters star-wheel 132, first planet seniority among brothers and sisters carrier 133 and first planet row's ring gear 134 by first planet and forms。First planet row's sun gear 131 is connected with drive motor axle 123 outfan by spline, first planet row's sun gear 131 is ranked star-wheel 132 with first planet and is engaged, first planet seniority among brothers and sisters star-wheel 132 is arranged ring gear 134 with first planet and is engaged, and first planet seniority among brothers and sisters star-wheel 132 is arranged in first planet seniority among brothers and sisters carrier 133 by needle bearing;Wherein, the outfan of described first planet seniority among brothers and sisters carrier 133 is fixing connects circular support dish 141, and central through hole is offered in circular support dish 141 center, and output shaft 160 is connected through central through hole is fixing with circular support dish 141。
Second planet row is by the second planet row sun gear 135, second planet row planetary gear 136, second planet row planet carrier 137 and the second planet row ring gear 138 form, second planet row sun gear 135 center arranges prominent axle, described axle outer wall is fixing to be connected described housing and has axially extending bore, described output shaft 160 passes and is rotatably supported at described axially extending bore and stretches out outside housing, second planet row sun gear 135 engages with the second planet row planetary gear 136, second planet row planetary gear 136 engages with the second planet row ring gear 138, wherein, second planet row planetary gear 136 is arranged on the second planet row planet carrier 137 by needle bearing。
Wherein, first planet row ring gear 134 is fixing with the second planet row planet carrier 137 is connected。
Clutch 140 (normally opened) includes circular support dish 141, and circular support dish 141 is disc structure, and disc structure is made up of disk and outer circle wall, and the center offers through hole, and the size of described through hole and output shaft 160 match。The outer wall of clutch 140 (normally opened) and the second fixing connection of planet row ring gear 138, its inwall optionally connects with the outer circle wall of circular support dish 141 and separates, circular support dish 141 connects output shaft 160 by described through hole, and circular support dish 141 connects first planet seniority among brothers and sisters carrier 133 outfan by spline。Therefore, connected by the selectivity of clutch 140 and circular support dish 141 and realize separating and combination of the second planet row ring gear 138 and output shaft 160。When clutch 140 works, clutch 140 is connected with circular support dish 141, the first planet seniority among brothers and sisters carrier 133 that be connected fixing with circular support dish 141 is by power transmission to output shaft 160, it is further, second planet row ring gear 138 is combined with circular support dish 141, so that power can be transferred to output shaft 160 by the second planet row ring gear 138;When clutch does not work, clutch 140 and circular support dish 141 disconnect, and power can not be transferred to output shaft 160 by the second planet row ring gear 138, and now, the first planet seniority among brothers and sisters carrier 133 that be connected fixing with circular support dish 141 is by power transmission to output shaft 160。
Brake 150 includes brake disks 151, described brake disks 151 is disc structure, and disc structure is made up of disk and outer circle wall, and the center offers through hole, described through hole fixes the prominent axle connecting the second planet row sun gear 135, is connected thus fixing with housing 110。The outer wall of brake 150 is fixing with first planet row's ring gear 134 to be connected, first planet row's ring gear 134 is fixing with the second planet row planet carrier 137 to be connected, so that the outer wall of brake 150 is simultaneously connected with first planet row's ring gear 134 and the second planet row planet carrier 137, the inwall of brake 150 connects with the outer circle wall selectivity of brake disks 151 and separates, therefore, the rotation and the braking that separate, be implemented in combination in the second planet row planet carrier 137 and first planet row's ring gear 134 of brake 150 and brake disks 151。When brake 150 works, brake 150 is connected with brake disks 151, and the brake disks 151 that be connected fixing with shell 110 brakes the second planet row planet carrier 137 and first planet row's ring gear 134 by brake 150;When brake 150 does not work, brake 150 and brake disks 151 disconnect, and the second planet row planet carrier 137 and first planet row's ring gear 134 can rotate。
The gear switching of power drive system is realized by clutch 140 and brake 150, 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 140, Cl2Represent brake 150。
During one gear, drive motor 110 rotates forward (direction of motor rotation realizing car load advance is forward direction), impart power to first planet row's sun gear 131, power is passed to first planet seniority among brothers and sisters star-wheel 132 by first planet row's sun gear 131 further, now brake 150 works, second planet row planet carrier 137 and first planet row's ring gear 134 are braked, so that the first planet seniority among brothers and sisters star-wheel 132 engaged with first planet row's ring gear 134 carries out rotation and revolution, further power is transferred to first planet seniority among brothers and sisters carrier 133;Meanwhile, clutch 140 (normally opened) does not work, and clutch 140 disconnects with a support plate 141, and the second planet row ring gear 138 disconnects with the second planet row planet carrier 133 and output shaft 160 simultaneously, and namely the second planet row entirety does not work。Now, power is transmitted to output shaft 160 by first planet seniority among brothers and sisters carrier 133 by circular support dish 141, it is achieved the output of power。
During two gears, drive motor rotates forward, brake 150 does not work, itself and brake disks 151 disconnect, second planet row planet carrier 137 and first planet row's ring gear 134 can rotate, clutch 140 (normally opened) works, clutch 140 is connected with circular support dish 141, the first planet seniority among brothers and sisters carrier 133 that be connected fixing with circular support dish 141 is by power transmission to output shaft 160, it is further, second planet row ring gear 138 is combined with circular support dish 141, first planet row's ring gear 134 imparts power to the second planet row ring gear 138 by the second planet row planet carrier 137, so that power can be transferred to output shaft 160 by the second planet row ring gear 138, play the effect of speedup。
One gear rises two gear processes, realize clutch 140 (normally opened) by shift control unit and be switched to duty by off position, brake 150 is switched to off position by duty, the power of drive motor is delivered to first planet row's sun gear 131 by drive motor axle 123 end, rank star-wheel 132 then through first planet and be delivered to first planet seniority among brothers and sisters carrier 133, rank carrier 133 finally by first planet and be delivered to output shaft 160, and by the switching of clutch 140 (normally opened) and the duty of brake 150, realize the second planet row ring gear 138 and speedup power can be transferred to output shaft 160。
One gear process drops in two gears, realize clutch 140 (normally opened) by shift control unit and be switched to off position by duty, brake 150 is switched to duty by off position, the power of drive motor is delivered to first planet row's sun gear 131 by drive motor axle 123 end, rank star-wheel 132 then through first planet and be delivered to first planet seniority among brothers and sisters carrier 133, rank carrier 133 finally by first planet and be delivered to output shaft 160, and by the switching of clutch 140 (normally opened) and the duty of brake 150, realize the second planet row ring gear 138 and speedup power can not be transferred to output shaft 160。
When reversing gear, drive motor reversion (contrary with forward direction), reverse power is passed to first planet row's sun gear 131, power is passed to first planet seniority among brothers and sisters star-wheel 132 by first planet row's sun gear 131 further, now brake 150 works, second planet row planet carrier 137 and first planet row's ring gear 134 are braked, so that the first planet seniority among brothers and sisters star-wheel 132 engaged with first planet row's ring gear 134 carries out rotation and revolution, further power is transferred to first planet seniority among brothers and sisters carrier 133;Meanwhile, clutch 140 (normally opened) does not work, and clutch 140 and circular support dish 141 disconnect, and the second planet row ring gear 138 disconnects with the second planet row planet carrier 133 and output shaft 160 simultaneously, and namely the second planet row entirety does not work。Now, power is transmitted to output shaft 160 by first planet seniority among brothers and sisters carrier 133 by circular support dish 141, it is achieved traveling swung to by car load。
During neutral, clutch 140 (normally opened) and brake 150 all keep off position so that drive motor axle 123 and output shaft 160 are in released state, have 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 140 (normally opened) does not work, and brake 150 works, and drive system plays 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 (8)

1. the power drive system based on double planet wheel rows of mixing two shift transmission, it is characterised in that including:
Housing;
Driving mechanism, it is arranged in described housing, and includes drive motor axle;
Output shaft, it is rotatably supported on described housing, is used for exporting power;
Double planet wheel rows of mixing gear train, including first planet row and the second planet row, described first planet row's sun gear connects described drive motor axle, first planet seniority among brothers and sisters carrier is fixing connects described output shaft, first planet row's ring gear connects the second planet row planet carrier, and the second planet row sun gear is fixing connects described housing;
Clutch, it is arranged between described output shaft and the second planet row ring gear, optionally makes described output shaft and the second planet row ring gear combine and separate;
Brake, it is arranged between described housing and second row planet carrier, optionally makes to combine between described housing and second row planet carrier and separate;When brake in conjunction with time, described housing and second row planet carrier maintain static;When brake separates, described first planet row's ring gear and second row planet carrier rotate jointly;
Wherein, when selecting one grade, clutch separation and brake combine;When selecting two grades, clutch combines and separates with brake。
2. the power drive system based on double planet wheel rows of mixing two shift transmission as claimed in claim 1, 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。
3. the power drive system based on double planet wheel rows of mixing two shift transmission as claimed in claim 2, it is characterized in that, described first holds intracavity lays driving mechanism, and described second holds intracavity lays double planet wheel rows of mixing gear train, wherein, described drive motor axle connects double planet wheel rows of mixing gear train through inwall。
4. the power drive system based on double planet wheel rows of mixing two shift transmission as claimed in claim 3, it is characterised in that described driving mechanism also includes:
Rotor, its fixing connection drive motor axle;
Stator, it is fixedly connected with the casing。
5. the power drive system based on double planet wheel rows of mixing two shift transmission as according to any one of claim 1-4, it is characterized in that, also include circular support dish, its side circle centre position is fixing connects described output shaft, opposite side connects described first planet seniority among brothers and sisters carrier, it is possible to make first planet seniority among brothers and sisters carrier, a support plate and output shaft rotate together with;The outer rim of described support plate is fixing connects described clutch。
6. the power drive system based on double planet wheel rows of mixing two shift transmission as claimed in claim 5, it is characterized in that, described second planet row sun gear also includes the axle highlighted, its described housing of fixing connection, described axle has axially extending bore, and described output shaft passes and is rotatably supported at described axially extending bore and stretches out outside housing。
7. the power drive system based on double planet wheel rows of mixing two shift transmission as claimed in claim 6, it is characterised in that described driving mechanism includes electric motor mode and generator mode, and drive motor switches to generator mode when car is braked。
8. the power drive system based on double planet wheel rows of mixing two shift transmission as claimed in claim 7, it is characterised in that when selecting to reverse gear, clutch separation, brake combine, and the Reverse Power of described driving mechanism is ranked carrier by first planet and is transferred to output shaft。
CN201620074970.0U 2016-01-26 2016-01-26 Power drive system based on double row star is arranged two and is kept off derailleur Withdrawn - After Issue CN205331336U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620074970.0U CN205331336U (en) 2016-01-26 2016-01-26 Power drive system based on double row star is arranged two and is kept off derailleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620074970.0U CN205331336U (en) 2016-01-26 2016-01-26 Power drive system based on double row star is arranged two and is kept off derailleur

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CN205331336U true CN205331336U (en) 2016-06-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105508526A (en) * 2016-01-26 2016-04-20 吉林大学 Electric driving system based on double-planet-row two-gear transmission
CN112065938A (en) * 2020-07-24 2020-12-11 宁波上中下自动变速器有限公司 Two-gear automatic transmission assembly and gear shifting method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105508526A (en) * 2016-01-26 2016-04-20 吉林大学 Electric driving system based on double-planet-row two-gear transmission
CN105508526B (en) * 2016-01-26 2017-10-10 吉林大学 A kind of power drive system based on the shift transmission of double planet wheel rows of mixing two
CN112065938A (en) * 2020-07-24 2020-12-11 宁波上中下自动变速器有限公司 Two-gear automatic transmission assembly and gear shifting method

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