CN201951243U - Front axle device integrating externally hung drive motor for double-shaft drive vehicle - Google Patents

Abstract

The utility model discloses a front axle device integrating an externally hung drive motor for a double-shaft drive vehicle, which comprises a first front axle shell, a second front axle shell, an inner axle shaft, a pair of external axle shafts, a pair of universal joints, a pair of differential side gears, a pair of differential-pinion gears, an inner axle shaft driven gear and a first power input shaft. The front axle device for the double-shaft drive vehicle further comprises a drive motor and a second power input shaft, wherein a drive rotor of the drive motor is arranged on a second power input shaft, and the second power input shaft is externally hung on the outer side of the second front axle shell and meshed with the inner axle shaft driven gear. In the utility model, an electric power source is directly arranged on the inner axle shaft drive gear of the front axle and is closer to a power actuating mechanism so that the power transmission efficiency is improved; and the front axle shell is internally and additionally provided with an electric drive shaft, the number of gears of the shaft is changed to further change a transmission ratio i so as to acquire the required motor drive torque, and the motor with a given output torque can be used conveniently.

Description

A kind of collect plug-in drive motor be the twin shaft of one drive automobile-used before Biodge device

Technical field

The utility model belongs to the automobile power transmission field, and particularly relating to the plug-in drive motor of a kind of oil electric mixed dynamic automobile collection is the automobile-used preceding Biodge device of twin shaft driving of one.

Background technology

Hybrid vehicle has two propulsions source: heat dynamic resource (being produced by traditional spark ignition engine or diesel engine) and electrodynamic source (battery and electrical motor).According to the bind mode that hybrid power drives, its power transmission mode is divided into following three classes: parallel, and tandem and series parallel type.Above-mentioned three kinds of hybrid power drive methods, characteristics in view of hybrid vehicle self, it all has two cover power drives (shown in the accompanying drawing 1), this hybrid power automobile driving system mainly comprises driving engine 200, power-transfer clutch 201,202, electronic-powerplant module 104, storage battery 103 and outer semiaxis 41, inner shaft 61 bonded assembly wheels 102, have complex structure, driving efficiency is low, the shortcoming that cost is high.In addition, its propulsion source, especially electrodynamic source are far away apart from powered actuation mechanism (front vehicle wheel), cause under electric model, and the driving efficiency of hybrid vehicle is not high; At present, all there are the problems referred to above in the power transmission mode of the hybrid vehicle of having used for the market.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of on the basis that guarantees the stable and structural strength of propons apparatus structure, by directly increasing the method for drive motor in the Biodge device before former, with the plug-in drive motor of collection of the purpose of the raising of the simplification that realizes existing hybrid vehicle power transmission arrangment, power transmission efficiency and energy recovery be the twin shaft of one drive automobile-used before Biodge device.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of collect plug-in drive motor be the twin shaft of one drive automobile-used before Biodge device, comprise that first front axle housing, second front axle housing, inner shaft, an external semiaxis, a pair of universal-joint, a pair of differential side gear, a pair of differential pinion gear, inner shaft are from the gear and first power input shaft, described first power input shaft is embedded in first front axle housing and with inner shaft and carries out power transmission from gear mesh

Described twin shaft drives automobile-used preceding Biodge device and also comprises the drive motor and second power input shaft, the driving rotor of described drive motor is installed on described second power input shaft, described second power input shaft be hung on outward second front axle housing outside and with described inner shaft from gear mesh.

The driving rotor of described drive motor positions by the motor location bearing of drive motor, the motor stator winding of drive motor and electric machine iron core stator casing by the welding or bolted at the second front axle housing outer wall.

Described second power input shaft is electronic imput shaft.

Beneficial effect:

The utility model is a kind of collect plug-in drive motor be the twin shaft of one drive automobile-used before in the Biodge device electrodynamic source (drive motor) be directly installed on propons inner shaft flower wheel place, more close powered actuation mechanism has improved power transmission efficiency; Save a cover power drive system, simplified structure; Simultaneously, increase in front axle housing inside and to have adorned an electronic imput shaft, by changing this shaft gear number, and then change transmitting ratio i, thereby obtain required motor-driven torque, can utilize the fixed motor of output torque easily.

Description of drawings

Fig. 1 is existing hybrid power automobile driving system structural representation.

Fig. 2 is the utility model structural representation.

Fig. 3 is a hybrid power automobile driving system structural representation in the utility model.

Fig. 4 is an embodiment drive system structure sketch.

Fig. 5 is the drive system structure sketch of the utility model band drive motor.

The specific embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Be illustrated in figure 2 as the utility model a kind of collect plug-in drive motor be the twin shaft of one drive automobile-used before Biodge device, comprise the common front axle housings of forming of first front axle housing 7 and second front axle housing 71 and by inner shaft 10, one external semiaxis 4, a pair of universal-joint 15, a pair of differential side gear 5, a pair of differential pinion gear 6, inner shaft is from the preceding Biodge device of gear 3 and first power input shaft, 1 composition, first power input shaft 1 is embedded in first front axle housing 7 and with inner shaft and carries out power transmission from gear 3 engagements, this twin shaft drives automobile-used preceding Biodge device and also comprises the drive motor 100 and second power input shaft 12, the driving rotor 9 of drive motor 100 is installed on described second power input shaft 12, and second power input shaft 12 is hung on second front axle housing, 71 outsides outward and meshes from gear 3 with described inner shaft.

The driving rotor 9 of drive motor 100 positions by the motor location bearing 14 of drive motor 100; the motor stator winding 8 of drive motor 100 and electric machine iron core stator casing 13 by welding or bolted at second front axle housing, 71 outer walls; and passing through electric machine iron core stator casing 13 with its seal protection, second power input shaft 12 is the electronic imput shaft that can change its number of teeth and then change its transmitting ratio.

The utility model principle is as follows, referring to figs. 2 and 3 shown in:

Under the hybrid vehicle fuel oil pattern, driving engine 200 is opened closed power-transfer clutch 202, first power input shaft 1 rotates, and driver pinion 2 rotates, and drives inner shaft flower wheel 3 and rotates, left side inner shaft rotates, and differential side gear 5 rotates, and drives differential pinion gear 6 and rotates (during turning; If take the air line, the relative differential side gear of 6 of differential pinion gears 5 is static), drive right inner shaft with left inner shaft rotates simultaneously, finally realize front vehicle wheel 102 rotations; Simultaneously, second power input shaft 104 rotates and drives 3 rotations of inner shaft flower wheel, drives electronic driver pinion 11 and rotates, and drives drive motor 100 and rotates, generating storage accumulators.

Under the hybrid vehicle electric model, cut-off clutch 202, drive motor 100 is opened, drive electronic driver pinion 11 and rotate, drive inner shaft flower wheel 3 and rotate, left inner shaft rotates, differential side gear 5 rotates, and drives differential pinion gear 6 and rotates (during turning; If take the air line, the relative differential side gear of 6 of differential pinion gears 5 is static), drive right inner shaft with left inner shaft rotates simultaneously, finally realize front vehicle wheel 102 rotations.

Under the hybrid vehicle hybrid mode: closed power-transfer clutch 202, driving engine 200 is opened, first power input shaft 1 rotates, and driver pinion 2 rotates, simultaneously, drive motor 100 is opened, drive electronic driver pinion 11 and rotate, driving engine 200, drive motor 100 drive inner shaft side gear 3 in the lump and rotate, and left inner shaft rotates, differential side gear 5 rotates, and drives differential pinion gear 6 and rotates (during turning; If take the air line, the relative differential side gear of 6 of differential pinion gears 5 is static), drive right inner shaft with left inner shaft rotates simultaneously, finally realize front vehicle wheel 102 rotations.

Embodiment:

Pleasing 2009 sections of manual elite's types of 2.0L with the Yangze river and Huai river guest is objective for implementation, and Fig. 4, Fig. 5 are cooresponding hybrid vehicle body construction sketch and schematic diagram among this embodiment, and 200 is that electrical generator, 202 is that power-transfer clutch, 102 is that front vehicle wheel, 100 is drive motor among the figure.

1), according to the parameter that the Yangze river and Huai river guest pleases 2009 sections of manual elite's types of 2.0L, obtain this car maximum speed Vmax, wheel 102 radius Rs, body quality m; I is the transmitting ratio (shown in Figure 4) of driver pinion and inner shaft flower wheel; Solve this car and ground coefficient of rolling friction f, vehicle body equivalence windage area A.

2), find the solution the drive motor parameter.Resolution principle satisfies following equation:

$n_{\max }=\frac{v_{\max }}{R*2*\mathrm{\π}}*60......\left(1\right)$

F _f＝m*g*f................................................(2)

$F_w=0.5*C_d*A*\mathrm{\&rho;}{*v}_{\mathrm{<figure-callout\; id="2"\; label="max"\; filenames="HDA0000038383090000012.png,HDA0000038383090000021.png"\; state="\{\{state\}\}">max</figure-callout>}}^2......\left(3\right)$

$T_e=\frac{F_f+F_w}{R*i}......\left(4\right)$

$P=T_e*\frac{v_{\max }}{R}*i......\left(5\right)$

Wherein, nmax is the drive motor maximum speed of revolution, and π is a circular constant, and Ff is a force of rolling friction between car ground, and g is an acceleration due to gravity, and Fw is a windage, and Cd is an air resistance coefficient, and ρ is a density of air, and Te is the drive motor maximum output torque, and P is the motor horsepower output.

3), according to step 2) calculate determined relation, design required drive motor, the known drive parameter of electric machine improves this automobile front axle device (as shown in Figure 5).

Claims (3)

1. one kind collects the automobile-used preceding Biodge device of twin shaft driving that plug-in drive motor is an one, comprise first front axle housing (7), second front axle housing (71), inner shaft (10), one external semiaxis (4), a pair of universal-joint (15), a pair of differential side gear (5), a pair of differential pinion gear (6), inner shaft is from gear (3) and first power input shaft (1), described first power input shaft (1) is embedded in first front axle housing (7) and with inner shaft and carries out power transmission from gear (3) engagement, it is characterized in that, described twin shaft drives automobile-used preceding Biodge device and also comprises drive motor (100) and second power input shaft (12), the driving rotor (9) of described drive motor (100) is installed on described second power input shaft (12), and outer being hung on outside second front axle housing (71) and with described inner shaft of described second power input shaft (12) meshed from gear (3).

2. a kind of automobile-used preceding Biodge device of twin shaft driving that plug-in drive motor is an one that collects according to claim 1, it is characterized in that, the driving rotor (9) of described drive motor (100) positions by the motor location bearing (14) of drive motor (100), the motor stator winding (8) of drive motor (100) and electric machine iron core stator casing (13) by the welding or bolted at second front axle housing (71) outer wall.

3. a kind of automobile-used preceding Biodge device of twin shaft driving that plug-in drive motor is an one that collects according to claim 1 is characterized in that described second power input shaft (12) is electronic imput shaft.

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