CN104595465A - Planetary reduction stepless variable speed coupling box of new energy automobile - Google Patents
Planetary reduction stepless variable speed coupling box of new energy automobile Download PDFInfo
- Publication number
- CN104595465A CN104595465A CN201310530496.9A CN201310530496A CN104595465A CN 104595465 A CN104595465 A CN 104595465A CN 201310530496 A CN201310530496 A CN 201310530496A CN 104595465 A CN104595465 A CN 104595465A
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- Prior art keywords
- planetary reduction
- gear
- energy automobile
- coupling box
- new
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/76—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to a planetary reduction stepless variable speed coupling box of a new energy automobile. The planetary reduction stepless variable speed coupling box comprises a main drive loop formed by motors, planetary reduction mechanisms and a differential mechanism, wherein the motors are connected with sun wheels of the planetary reduction mechanisms through rotor frames to be used as power input, and planet carriers of the planetary reduction mechanisms are connected with the differential mechanism to be used as power output drive wheels. The planetary reduction stepless variable speed coupling box of the new energy automobile further comprises an auxiliary drive device for driving inner gear rings of the planetary reduction mechanisms to rotate. Compared with the prior art, the main drive loop can carry out gear switching of different speed ratios on a planet gearbox according to the working conditions of the inner gear rings, and therefore the whole gear shifting process is continuous, stable and free of impact force, so that stepless variable speed of the automobile in climbing, heavy-load starting, common-load driving at the moderate speed and light-load driving at high speed can be achieved.
Description
Technical field
The present invention relates to a kind of gearbox of vehicle, specifically a kind of planetary reduction gear stepless change coupling box be applied on new-energy automobile.
Background technique
Along with international environment worsen and oil price rise, new-energy automobile is more and more pursued in whole world OEM.Wherein, due to pure electric automobile, to have efficiency high, and energy consumption is low, is the scheme of unique practicable at present.
Pure electric vehicle, as a kind of new traffic tool adopting power wheel to travel.Due to less relative to orthodox car to environmetal impact, so be with a wide range of applications and market, but current techniques is still immature.Wherein, gearbox is as the vitals of pure electric vehicle, and its effect realizes vehicle gear switch under steam with the driving demand in satisfied different road and section, and its significance is self-evident.
Early stage pure electric vehicle, the speed governing of motor adopts the number of turn of series resistor or change motor-field coil to realize, and now seldom adopts.Application is thyristor chopping regulating speed more widely, by changing the terminal voltage of motor equably, controlling the electric current of motor, realizing the speed governing of motor.In the development of electron electric power technology, it also gradually replace by other power transistors (as GTO, MOSFET, BTR and I GBT etc.) chopper speed regulating device.From the development of technology, along with the application of novel drive motor, the speed regulating control of electric vehicle changes the application of DC inversion technology into, will become inevitable trend.
And the pure electric vehicle great majority come out at present are constant-speed ratio output, although motor drives traditional engine-driving of comparing more efficient, but the rotation speed requirements of this driving mode to motor is too high, torque demand is excessive, and current motor has no idea to possess the double grading of high rotating speed and high moment of torsion simultaneously, so make the efficiency at motor two ends in full rotating speed interval not high, simultaneously when low-speed heave-load is started to walk, it requires that big current is powered, larger to the damage of electrokinetic cell, and when vehicle is in climbing owing to needing motor to have higher moment of torsion, so make vehicle comparatively painstaking when climbing, affect driving manipulation and the travelling comfort of user.
Summary of the invention
The object of the present invention is to provide a kind of new-energy automobile planetary reduction gear stepless change coupling box, make it have three kinds of different speed ratio gears, to tackle different vehicle movement operating modes, and mutual switching is continuous and stable, thus improve vehicle in climbing, heavy duty starting, conventional load, drive at moderate speed and performance that underloading to be run at high speed etc. under state, and vehicle can be made when gear shift to have the high quality of stationarity, improve driving property and the travelling comfort of vehicle.
To achieve these goals, the invention provides a kind of new-energy automobile planetary reduction gear stepless change coupling box, comprise the planetary gear speed reducing mechanism be made up of sun gear, planet wheel, ring gear and planet carrier; Also comprise: the motor driving described planetary gear speed reducing mechanism to carry out operating and driving automotive wheel carry out the differential mechanism rotated;
Described motor, described planetary gear speed reducing mechanism and described differential mechanism form the main transmission loop of described new-energy automobile planetary reduction gear stepless change coupling box; Wherein, described motor connects sun gear by rotor rack and inputs as power, and described planet carrier connects described differential mechanism and drives wheel as Power output;
Described new-energy automobile planetary reduction gear stepless change coupling box also comprises: carry out the auxiliary drive rotated for driving described ring gear;
The gear switch of different speed ratio, according to the working condition of described ring gear, is carried out in described main transmission loop to described new-energy automobile planetary reduction gear stepless change coupling box.
Embodiments of the present invention in terms of existing technologies, owing to being provided with the auxiliary drive driving planetary gear speed reducing mechanism ring gear in planetary reduction gear box, while the outputting power of main transmission loop, the ring gear of planetary gear speed reducing mechanism is driven to rotate by auxiliary drive.It can thus be appreciated that, when vehicle low-speed heave-load is started to walk, the transmission performance of planetary gear speed reducing mechanism can be improved, even if do not adopt big current to power to motor, also vehicle can be made to export a larger moment of torsion when starting to walk, thus make vehicle can upshift in a flash in starting, avoid big current and to power the damage that battery is caused, and improve the grade climbing performance of vehicle when climbing.And because the main transmission loop in planetary reduction gear box can change different speed ratio gears according to the working condition of gear ring, thus make vehicle realize different gear switches under different travelling states, in addition owing to switching to mechanical drive mechanism between speed ratio gear, so can make whole shift process continuously, steadily, without impact force, thus realize vehicle climbing, heavy duty starting, commonly use load, drive at moderate speed and underloading run at high speed in electrodeless variable-speed.
Wherein, described motor comprises motor stator, is arranged on the rotor in described motor stator; Described rotor rack is connected with described rotor.When practical set, can in the rotor of rotor around on armature winding.And at work, motor stator produces the effect of power to the electrical conductor be in wherein for generation of excitation field, and the armature winding in motor rotor slot can make its rotor rotate under excitation effect, thus drives planetary gear speed reducing mechanism to carry out work.
And the working condition stating ring gear controls by auxiliary drive, ring gear can be made to carry out three kinds of different working methods by auxiliary drive to comprise and maintain static, rotate and reverse, thus it is optional to make main transmission loop have the gear of large, medium and small three kinds of different speed ratios accordingly, to meet different road conditions demands.
Further, outside described ring gear, there is external toothing, described ring gear and described external toothing one-body molded; Described auxiliary drive is helper motor, and the sheathed gear of main shaft of described helper motor engages with described external toothing.It can thus be appreciated that when Power output is carried out in main transmission loop, because the external toothing outside ring gear is and the gears meshing on helper motor main shaft, so ring gear can be driven to rotate by helper motor while the outputting power of main transmission loop, thus change main transmission loop power export time speed ratio, improve vehicle climb time grade climbing performance and rise step gear shifting time stationarity.
Further, described new-energy automobile planetary reduction gear stepless change coupling box also comprises: carry out with described external toothing the break that is connected.Due to break be a kind of have moving element or movable machinery are slowed down, stop or keeping the device of the functions such as halted state, the mechanical parts adopted when being and vehicle being stopped or slowing down.In the actual travel process of vehicle, control the rotating speed of ring gear by break, thus enter one the Power output in main transmission loop is control effectively.
Accompanying drawing explanation
Fig. 1 is the structural representation of the new-energy automobile planetary reduction gear stepless change coupling box of first embodiment of the invention;
Fig. 2 is the acceleration graph of the new-energy automobile planetary reduction gear stepless change coupling box of first embodiment of the invention;
Fig. 3 is the cut-away view of the new-energy automobile planetary reduction gear stepless change coupling box of second embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in each mode of execution of the present invention, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following mode of execution and amendment, each claim of the application technological scheme required for protection also can be realized.
First mode of execution of the present invention relates to a kind of new-energy automobile planetary reduction gear stepless change coupling box, as shown in Figure 1, comprises the planetary gear speed reducing mechanism be made up of sun gear 3, planet wheel 4, ring gear 2 and planet carrier 5.Also comprise: the motor driving planetary gear speed reducing mechanism to carry out operating and driving automotive wheel carry out the differential mechanism 12 rotated.
Wherein, motor, planetary gear speed reducing mechanism and differential mechanism 12 forms the main transmission loop of the new-energy automobile planetary reduction gear stepless change coupling box of present embodiment.Motor connects sun gear 3 as power input by rotor rack 13, and planet carrier 5 connected with differential 12 drives wheel as Power output.
Specifically, in the present embodiment, motor comprises motor stator 8 and rotor 9.When practical set, can in the rotor of rotor around on armature winding.And at work, motor stator produces the effect of power to the electrical conductor be in wherein for generation of excitation field, and the armature winding in motor rotor slot can make its rotor rotate under excitation effect, thus drives planetary gear speed reducing mechanism to carry out work.In addition, rotor rack 13 is connected with rotor 9.And sun gear 3 in planetary gear speed reducing mechanism, planet wheel 4 are arranged in ring gear 2, and sun gear 3 is directly set on rotor rack 13, drives it to rotate by rotor rack 13.In addition, planet wheel 4 engages with ring gear 2 and sun gear 3 respectively, and planet carrier 5 has a joint 6 is connected with the axle center of planet wheel 4.
The specific works mode in this main transmission loop is, rotor 9 drives sun gear 3 to rotate through rotor rack 13, and planet wheel 4 carries out revolution around sun gear 3 and drives planet carrier 5 to turn round under the rotation of sun gear 3 simultaneously, by planet carrier 5 by the transmission of power of motor to differential mechanism, carry out Power output by differential mechanism by semiaxis 1.
It is worth mentioning that, the new-energy automobile planetary reduction gear stepless change coupling box of present embodiment also comprises: carry out for driving ring gear 2 auxiliary drive rotated.Wherein, the gear switch of different speed ratio, according to the working condition of ring gear 2, is carried out in main transmission loop to gear-box.
Known by foregoing, owing to being provided with the auxiliary drive driving planetary gear speed reducing mechanism ring gear 2 in planetary reduction gear box, while the outputting power of main transmission loop, drive the ring gear 2 of planetary gear speed reducing mechanism to rotate by auxiliary drive.It can thus be appreciated that, when vehicle low-speed heave-load is started to walk, the transmission performance of planetary gear speed reducing mechanism can be improved, even if do not adopt big current to power to motor, also vehicle can be made to export a larger moment of torsion when starting to walk, thus make vehicle can upshift in a flash in starting, avoid big current and to power the damage that battery is caused, improving course continuation mileage and the working life of battery, improve the grade climbing performance of vehicle when climbing simultaneously.And because the main transmission loop in planetary reduction gear box can change different speed ratio gears according to the working condition of gear ring, thus make vehicle realize different gear switches under different travelling states, in addition owing to switching to mechanical drive mechanism between speed ratio gear, so can make whole shift process continuously, steadily, without impact force, thus realize car climbing, heavy duty starting, commonly use load, drive at moderate speed and underloading run at high speed in electrodeless variable-speed.
Specifically, in the present embodiment, ring gear 2 is outer also has an external toothing 14, and ring gear 2 is one-body molded with external toothing 14.And auxiliary drive adopts helper motor 10, and be arranged with on the main shaft of helper motor 10 and carry out meshed gears 7 with external toothing 14.
It can thus be appreciated that, when Power output is carried out in main transmission loop, because the external toothing 14 outside ring gear 2 engages with the gear 7 on helper motor main shaft, so ring gear 2 can be driven to rotate by helper motor while the outputting power of main transmission loop, thus change main transmission loop power export time speed ratio, improve vehicle climb time grade climbing performance and rise step gear shifting time stationarity.
In addition, as shown in Figure 2, wherein L1 is the acceleration curve of 0-100km/h when only adopting main transmission loop driving vehicle, known by curve L1, when only adopting main transmission loop to drive vehicle to travel, acceleration curve L1 is a uphill process slowly, thus can affect the acceleration performance of vehicle when starting to walk and climb.In addition, when vehicle is starting to walk to enter in the process of second gear to need just to rise up into second gear after allowing it reach certain velocity amplitude after a while, due to the feature of pure electric vehicle gear-box gearshift, gear-box can be caused to carry out cannot ensureing its stationarity in shifting up operation, certain impact force can be produced, make driver produce pause and transition in rhythm or melody sense, thus affect driving property and the travelling comfort of driver.
And L2 is the acceleration curve of vehicle 0 to 100km/m when employing helper motor drives the ring gear 2 of planetary gear speed reducing mechanism to rotate the while of driving vehicle in main transmission loop, known by curve L2, speed ratio when main transmission loop power exports can be changed by the rotation of ring gear 2, within the first section time that starting is accelerated, the mode of gear ring 2 by rotating forward, make the instantaneous acceleration of curve L2 obviously faster than the instantaneous acceleration of curve L1, thus the time shortened needed for 0 to 100km/h acceleration, improve the moment of torsion of whole planetary reduction gear box simultaneously, various climbing demand can be adapted to.In addition, due to the raising of its instantaneous velocity, accelerate the time that starting upshift is used, vehicle directly can realize second gear starting in the process of starting, make in the starting of vehicle and running process, to reach stepless stable speed change, thus improve the travelling comfort of shift quality and driver and driving property.
Second mode of execution of the present invention relates to a kind of new-energy automobile planetary reduction gear stepless change coupling box, second mode of execution is on the basis of the first mode of execution, done further improvement, it mainly improves and is: as shown in Figure 3, and the new-energy automobile planetary reduction gear stepless change coupling box of present embodiment also comprises: carry out with external toothing 14 break 11 that is connected.
Due to break 11 be a kind of have moving element or movable machinery are slowed down, stop or keeping the device of the functions such as halted state, the mechanical parts adopted when being and vehicle being stopped or slowing down.In the actual travel process of vehicle, control the rotating speed of gear ring by break, and then the Power output of planet carrier is control effectively.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (5)
1. a new-energy automobile planetary reduction gear stepless change coupling box, comprises the main transmission loop be made up of motor, planetary gear speed reducing mechanism and differential mechanism;
Wherein, the sun gear that described motor connects described planetary gear speed reducing mechanism by rotor rack inputs as power, and the planet carrier of described planetary gear speed reducing mechanism connects described differential mechanism and drives wheel as Power output, it is characterized in that:
Described new-energy automobile planetary reduction gear stepless change coupling box also comprises: carry out the auxiliary drive rotated for driving the ring gear of described planetary gear speed reducing mechanism;
The gear switch of different speed ratio, according to the working condition of described ring gear, is carried out in described main transmission loop to described new-energy automobile planetary reduction gear stepless change coupling box.
2. new-energy automobile planetary reduction gear stepless change coupling box according to claim 1, is characterized in that: the working condition of described ring gear comprise maintain static, main story and reversion.
3., according to the new-energy automobile planetary reduction gear stepless change coupling box in claim 1 described in any one, it is characterized in that: outside described ring gear, there is external toothing, described ring gear and described external toothing one-body molded;
Described auxiliary drive is helper motor, and the sheathed gear of main shaft of described helper motor engages with described external toothing.
4. new-energy automobile planetary reduction gear stepless change coupling box according to claim 3, is characterized in that: described new-energy automobile planetary reduction gear stepless change coupling box also comprises: carry out with described external toothing the break that is connected.
5., according to new-energy automobile planetary reduction gear stepless change coupling box described in any one in Claims 1-4, it is characterized in that: described motor comprises motor stator, be arranged on the rotor in described motor stator;
Described rotor rack is connected with described rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530496.9A CN104595465A (en) | 2013-10-31 | 2013-10-31 | Planetary reduction stepless variable speed coupling box of new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530496.9A CN104595465A (en) | 2013-10-31 | 2013-10-31 | Planetary reduction stepless variable speed coupling box of new energy automobile |
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| CN104595465A true CN104595465A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310530496.9A Pending CN104595465A (en) | 2013-10-31 | 2013-10-31 | Planetary reduction stepless variable speed coupling box of new energy automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345563A (en) * | 2015-12-18 | 2016-02-24 | 湖北九洲数控机床有限责任公司 | Electric control mechanism for automatic indexing of automatic clamp of spindle |
| CN109595308A (en) * | 2018-12-12 | 2019-04-09 | 大连橡胶塑料机械有限公司 | The twin-screw reduction gearbox of planetary differential variable speed |
| CN111683832A (en) * | 2018-02-15 | 2020-09-18 | 日立汽车系统株式会社 | Drive device and vehicle |
| CN115366673A (en) * | 2022-10-24 | 2022-11-22 | 溧阳市新力机械铸造有限公司 | Gear shaft device for new energy automobile |
-
2013
- 2013-10-31 CN CN201310530496.9A patent/CN104595465A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345563A (en) * | 2015-12-18 | 2016-02-24 | 湖北九洲数控机床有限责任公司 | Electric control mechanism for automatic indexing of automatic clamp of spindle |
| CN105345563B (en) * | 2015-12-18 | 2019-01-11 | 湖北九洲数控机床有限责任公司 | A kind of electric control mechanism for main shaft automatic fixture automatic indexing |
| CN111683832A (en) * | 2018-02-15 | 2020-09-18 | 日立汽车系统株式会社 | Drive device and vehicle |
| CN109595308A (en) * | 2018-12-12 | 2019-04-09 | 大连橡胶塑料机械有限公司 | The twin-screw reduction gearbox of planetary differential variable speed |
| CN115366673A (en) * | 2022-10-24 | 2022-11-22 | 溧阳市新力机械铸造有限公司 | Gear shaft device for new energy automobile |
| CN115366673B (en) * | 2022-10-24 | 2023-02-14 | 溧阳市新力机械铸造有限公司 | Gear shaft device for new energy automobile |
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Application publication date: 20150506 |