CN104057821B - A kind of power system assembly of two gear electronlmobils - Google Patents
A kind of power system assembly of two gear electronlmobils Download PDFInfo
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- CN104057821B CN104057821B CN201410243816.7A CN201410243816A CN104057821B CN 104057821 B CN104057821 B CN 104057821B CN 201410243816 A CN201410243816 A CN 201410243816A CN 104057821 B CN104057821 B CN 104057821B
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Abstract
The power system assembly of a kind of two gear electronlmobils of the present invention.Comprise electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper and housing; The stator of electrical motor is fixed in housing, and rotor is connected to the side of rotor shaft; The opposite side of described rotor shaft is run through by bearing is located at housing; Described single planet circular system comprises sun gear, pinion carrier and plural planetary wheel; Described single reduction final drive comprises intermeshing main reduction gear and master subtracts big gear wheel; Described synchro comprises the synchronous lock ring of a gear, two gear synchronous lock ring, engaging sleeve and engagement block sets.The present invention adopts structure assembly designing technique, achieves motor, change-speed box and diff very high integrity and designs and application.Integrated and the integration of power drive system is more obvious.Effectively reduce volume and the quality of power drive system assembly, make easier for installation.And use two gear speed changes, improve efficiency and the torque of motor.
Description
Technical field
The invention belongs to electronlmobil electric drive technical field, be specifically related to a kind of power system assembly of two gear electronlmobils.
Background technology
In recent years, China's electronlmobil achieves significant progress.At present, electronlmobil on market is the entrucking requirement meeting motor, motor and change-speed box adopt independently two parts forms to be assembled on vehicle body by major part producer, and this mounting means realizes by being matched with input shaft female splines by motor output shaft male splines.But so not only can increase mechanicalness noise, vibration, and motor front end cover and case of transmission are absolute construction, will certainly affect the layout in car load space.And electronlmobil major part in the market adopts is the retarder of fixed speed ratio, traction electric machine can be made like this should to provide higher instantaneous torque in permanent torque district, provide higher running velocity in invariable power district again.Meanwhile, there is the problem that motor working efficiency is lower.
Summary of the invention
In order to improve motor working efficiency, increasing vehicle continual mileage, the invention provides a kind of power system assembly of two gear electronlmobils.
A kind of power system assembly of two gear electronlmobils comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper 17 and housing 3; The stator 1 of electrical motor is fixed in the side of housing 3, and rotor 2 is connected to the side of rotor shaft 4.The opposite side of described rotor shaft 4 runs through the opposite side being located at housing 3 by bearing; The middle part empty set of described rotor shaft 4 is provided with sun gear 6, is fixed with the engagement block set 14 on synchro simultaneously; The housing 3 corresponding with sun gear 6 is fixed with internally toothed annulus 8; The opposite side empty set of rotor shaft 4 is provided with pinion carrier 9, and the side of pinion carrier 9 is provided with plural planetary wheel 7, and the opposite side of pinion carrier 9 is tubular axis shape, it is fixed with main reduction gear 16; The stator of described magnet stopper 17 is fixed on housing 3, and the drg armature of described magnet stopper 17 is connected with pinion carrier 9; Described plural planetary wheel 7 and sun gear 6 external toothing, simultaneously and internally toothed annulus 8 internal messing form single planet circular system;
Described synchro comprises the synchronous lock ring 15 of a gear synchronous lock ring 10, two gear, engaging sleeve 13 and engagement block set 14; Described engagement block set 14 is fixed on rotor shaft 4, and the synchronous lock ring 10 of a described gear is fixed on sun gear 6, and the synchronous lock ring 15 of two gears is fixed in pinion carrier 9, and described engaging sleeve 13 is provided with gearshift driver plate 12; Gearshift driver plate 12 runs through mutually with pinion carrier 9, and gearshift driver plate 12 rotates with pinion carrier 9, but gearshift driver plate 12 can in pinion carrier 9 sway; Described gearshift driver plate 12 be circumferentially provided with shift fork 11;
Described main reduction gear 16 and master subtract big gear wheel 18 and engage, and form single reduction final drive; Described master subtracts big gear wheel 18 and is connected to flange on diff 19 housing, and the housing of diff 19 is located on housing 3 by bearing.
Described gearshift driver plate 12 comprises interior annulus and outer toroid, is connected between described interior annulus and outer toroid by uniform muscle bar; The pinion carrier 9 of answering with muscle pole pair offers kidney slot, and described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier 9, outer toroid is positioned at the outside of pinion carrier 9, and the effect of kidney slot is to make gearshift driver plate 12 realize sway relative to pinion carrier 9.
Described shift fork 11 is semi-annular shape, and the two ends of semicircular ring are respectively equipped with the fixture block of groove-like, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate 12.
Useful effect technique fruit of the present invention embodies in the following areas:
1. driving motor for electric automobile is become an entirety by the present invention with transmission design, effectively reduces complexity and the area of housing 3, decreases axis and the radial dimension of dynamic assembly;
2. sun gear 6 and main reduction gear 16 are directly located on the rotor shaft 4 of drive motor by the present invention, avoid motor output shaft to coordinate with input shaft and install and the concentricity tolerance caused, eliminate the mechanical vibration brought thus, decrease mechanical connection and noise;
3. power system of electric automobile assembly adopts two gear speed changes, one gear is through main reduction gear outputting power after being slowed down by the planet circular system of sun gear 6, planetary wheel 7 and internally toothed annulus 8 composition, two gears are by the direct outputting power of main reduction gear, compared with current electronlmobil, drive motor can work long hours in efficient district, increases vehicle continual mileage;
4. the present invention adopts two gear dual-shaft variable schemes, main reduction gear 16 is connected to one end of pinion carrier 9, two gears are made to share a main reduction gear, this structural arrangement form is simple, eliminate driven gear shaft, reduce the radial dimension of this assembly, compact conformation, volume is little, weight is little, meets the principle of automotive light weight technology;
5. the present invention has magnet stopper 17 parking locking mechanism and realizes change-speed box and car load braking parking, and magnet stopper 17 has that energising is separated, the characteristic of power-off brake.During automobile normal running, magnet stopper 17 is energized, and is in released state, and now change-speed box normally works; When automobile is in parked state, magnet stopper 17 power-off, is in braking mode, main reduction gear 16 is braked, and further diff 19 is braked, and can avoid unnecessary the sliding of vehicle, when the road conditions that uphill/downhill and frequent starting stop, improve the parking safety of car load.
Accompanying drawing explanation
Fig. 1 is a kind of power system assembly structure sketch of two gear electronlmobils.
Fig. 2 is gearshift driver plate and pinion carrier partial view.
Fig. 3 is the assembling schematic diagram of gearshift driver plate and pinion carrier.
Sequence number in upper figure: in stator 1, rotor 2, housing 3, rotor shaft 4, sun gear 6, planetary wheel 7, internally toothed annulus 8, pinion carrier 9(Fig. 2,9 is a part for pinion carrier), the synchronous lock ring 10 of a gear, shift fork 11, gearshift driver plate 12, engaging sleeve 13, engagement block set 14, two keep off synchronous lock ring 15, main reduction gear 16, magnet stopper 17, main subtract big gear wheel 18, diff 19, wheel 20.
Detailed description of the invention
Below in conjunction with accompanying drawing, be further described by the power system assembly of embodiment to a kind of electronlmobil of the present invention.
Embodiment
See Fig. 1, a kind of power system assembly of two gear electronlmobils comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper 17 and housing 3.
The stator 1 of electrical motor is fixedly installed in the side of housing 3, and rotor 2 is connected to the side of rotor shaft 4.The opposite side of rotor shaft 4 runs through the opposite side being installed on housing 3 by bearing; The middle part empty set of rotor shaft 4 is provided with sun gear 6, is installed with the engagement block set 14 on synchro simultaneously.The housing 3 corresponding with sun gear 6 is installed with internally toothed annulus 8.The opposite side empty set of rotor shaft 4 is provided with pinion carrier 9, and the side of pinion carrier 9 is provided with three planetary wheels 7, and the opposite side of pinion carrier 9 is tubular axis shape, it is installed with main reduction gear 16; The stator of magnet stopper 17 is fixed on housing 3, and the drg armature of magnet stopper 17 is connected with pinion carrier 9.Plural planetary wheel 7 and sun gear 6 external toothing, simultaneously and internally toothed annulus 8 internal messing form single planet circular system.
See Fig. 2 and Fig. 3, synchro comprises the synchronous lock ring 15 of a gear synchronous lock ring 10, two gear, engaging sleeve 13 and engagement block set 14.The synchronous lock ring 10 of one gear is fixedly installed on sun gear 6, and the synchronous lock ring 15 of two gears is fixedly installed in pinion carrier 9, and engaging sleeve 13 is provided with gearshift driver plate 12; Gearshift driver plate 12 runs through mutually with pinion carrier 9, and gearshift driver plate 12 rotates with pinion carrier 9, and gearshift driver plate 12 comprises interior annulus and outer toroid, is connected between interior annulus and outer toroid by uniform muscle bar; The pinion carrier 9 of answering with muscle pole pair offers kidney slot, described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier 9, outer toroid is positioned at the outside of pinion carrier 9, and the effect of kidney slot is to make gearshift driver plate 12 realize sway relative to pinion carrier 9.Gearshift driver plate 12 be circumferentially provided with shift fork 11, shift fork 11 be semi-annular shape, and the two ends of semicircular ring are respectively equipped with the fixture block of groove-like, and the fixture block at two ends is buckled in shifts gears in the outer toroid of driver plate 12.
Main reduction gear 16 and master subtract big gear wheel 18 and engage, and form single reduction final drive; The main big gear wheel 18 that subtracts is connected to flange on diff 19 housing, and the housing of diff 19 is located on housing 3 by bearing.
Principle of work of the present invention is described as follows:
For actual development type pure electric automobile, gear number is 2, and Planetary Gear Transmission group reduction ratio is 2.84, and base ratio is 4.According to Gear calculation method, the number of teeth calculating each gear is as shown in table 1.
Table 1 gear table of gear tooth number
As shown in Figure 1, a kind of power system of electric automobile assembly employs following gearshift power element synchro and magnet stopper.
The power element of each gear is as shown in table 2.
Table 2 is shifted gears power element worksheet
Note: in table, "●" represents combination, "○" represents separation.
Two forward gears and the power transmission line reversed gear of this power system of electric automobile assembly are as follows:
1. neutral (N position)
During neutral, magnet stopper 17 is energized and is separated, and synchronizer sleeve 13 neither keeps off synchronous lock ring 10 and engages with one, also do not keep off synchronous lock ring 15 with two and engage, and now motor cannot by transmission of power to wheel 20, and vehicle relies on inertia traveling or comes to a halt;
2. forward gear (D position)
(1) advance a gear (D1 gear)
Magnet stopper 17 is energized and is separated, and the synchronous lock ring 10 of a gear shifted to by synchro shift fork 11, drives gearshift driver plate 12 and engaging sleeve 13 to move right, makes engaging sleeve 13 and keep off synchronous lock ring 10 and engage;
Power rotates through rotor 2 rotor driven axle 4, and then keep off synchronous lock ring 10 drive sun gear 6 to rotate by engagement block set 14, engaging sleeve 13, on housing 3, internally toothed annulus 8 is fixed, three planetary wheels 7 revolve round the sun around sun gear 6, pinion carrier 9 rotates with three planetary wheels 7, pinion carrier 9 connects the main reduction gear 16 of drive by key and rotates, and power is passed to master by main reduction gear 16 and subtracts big gear wheel 18, makes wheel 20 rotate outputting power finally by diff 19.This gear is middle bottom gear, is mainly used in middle low speed driving and climbing etc.;
(2) advance two gears (D2 gear)
Magnet stopper 17 is energized and is separated, and the synchronous lock ring 15 of two gears shifted to by synchro shift fork 11, drives gearshift driver plate 12 and engaging sleeve 13 to be moved to the left, makes engaging sleeve 13 and two keep off synchronous lock ring 15 and engage;
Power rotates through rotor 2 rotor driven axle 4, and then keep off synchronous lock ring 15 drive pinion carrier 9 to rotate by engagement block set 14, engaging sleeve 13, two, pinion carrier 9 connects the main reduction gear 16 of drive by key and rotates, power is passed to master by main reduction gear 16 and subtracts big gear wheel 18, makes wheel 20 rotate outputting power finally by diff 19.This gear is top gear, is mainly used in running at high speed;
3. reverse gear (R position)
The present invention does not arrange specially and to reverse gear position, reverses gear to be realized by motor reversal, and power transmission line one keep off identical with advancing, and because rotor 2 reverses, last wheel 20 reverses, and realization is moveed backward;
4. parking (P position)
This halting mechanism adopts the magnet stopper 17 with energising separation, power-off brake characteristic.When electronlmobil normal road condition travels, magnet stopper 17 is energized all the time, and it is in released state, and this parking locking mechanism does not work; When electric automobile during traveling is in the road conditions that uphill/downhill or frequent starting stop, magnet stopper 17 power-off, it is in braking mode, and this parking locking mechanism is just started working.It can replace the function of parking brake.
Claims (3)
1. a power system assembly for two grades of electronlmobils, comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper (17) and housing (3); The stator (1) of electrical motor is fixed in the side of housing (3), and rotor (2) is connected to the side of rotor shaft (4), it is characterized in that: the opposite side of described rotor shaft (4) runs through the opposite side being located at housing (3) by bearing; The middle part empty set of described rotor shaft (4) is provided with sun gear (6), is fixed with the engagement block set (14) on synchro simultaneously; The housing (3) corresponding with sun gear (6) is fixed with internally toothed annulus (8); The opposite side empty set of rotor shaft (4) is provided with pinion carrier (9), and the side of pinion carrier (9) is provided with plural planetary wheel (7), and the opposite side of pinion carrier (9) is tubular axis shape, it is fixed with main reduction gear (16); The stator of described magnet stopper (17) is fixed on housing (3), and the drg armature of described magnet stopper (17) is connected with pinion carrier (9); Described plural planetary wheel (7) and sun gear (6) external toothing, simultaneously and internally toothed annulus (8) internal messing form single planet circular system;
Described synchro comprises one grade of synchronous lock ring (10), the synchronous lock ring of second gear (15), engaging sleeve (13) and engagement block set (14); Described engagement block set (14) is fixed on rotor shaft (4), described one grade of synchronous lock ring (10) is fixed on sun gear (6), the synchronous lock ring of second gear (15) is fixed in pinion carrier (9), and described engaging sleeve (13) is provided with gearshift driver plate (12); Gearshift driver plate (12) and pinion carrier (9) run through mutually, and gearshift driver plate (12) rotates with pinion carrier (9), but gearshift driver plate (12) can in the upper sway of pinion carrier (9); Described gearshift driver plate (12) be circumferentially provided with shift fork (11);
Described main reduction gear (16) and the main big gear wheel (18) that subtracts engage, and form single reduction final drive; Described master subtracts big gear wheel (18) and is connected to flange on diff (19) housing, and the housing of diff (19) is located on housing (3) by bearing.
2. the power system assembly of a kind of two grades of electronlmobils according to claim 1, is characterized in that: described gearshift driver plate (12) comprises interior annulus and outer toroid, is connected between described interior annulus and outer toroid by uniform muscle bar; The pinion carrier (9) of answering with muscle pole pair offers kidney slot, and described muscle bar is positioned at kidney slot, interior annulus is made to be positioned at the inner side of pinion carrier (9), outer toroid is positioned at the outside of pinion carrier (9), and the effect of kidney slot is to make gearshift driver plate (12) realize sway relative to pinion carrier (9).
3. the power system assembly of a kind of two grades of electronlmobils according to claim 2, it is characterized in that: described shift fork (11) is semi-annular shape, the two ends of semicircular ring are respectively equipped with the fixture block of groove-like, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate (12).
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| CN201410243816.7A CN104057821B (en) | 2014-06-04 | 2014-06-04 | A kind of power system assembly of two gear electronlmobils |
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| CN104057821B true CN104057821B (en) | 2016-03-23 |
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| CN110385976A (en) * | 2018-04-19 | 2019-10-29 | 舍弗勒技术股份两合公司 | Electric bridge |
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| CN108980337B (en) * | 2018-07-10 | 2020-10-16 | 绿传（北京）科技有限公司 | Two-gear automatic transmission and control method thereof |
| DE102018122944A1 (en) * | 2018-09-19 | 2020-03-19 | Voith Patent Gmbh | Hydrodynamic retarder with synchronization |
| CN110017359B (en) * | 2019-04-23 | 2021-03-09 | 合肥工业大学 | Multi-gear electric automobile transmission based on face gear |
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