CN205326801U - Vehicle, integrated electric drive axle and be used for integrated electric drive axle 's axle housing assembly - Google Patents

Abstract

The utility model discloses a vehicle, integrated electric drive axle and be used for integrated electric drive axle's axle housing assembly, an axle housing assembly includes for $integrateing electric drive axle: two semi -axiss, the axle housing subassembly, the axle housing subassembly be suitable for with integrated electric drive axle 's gearbox housing is fixed, the axle housing subassembly includes: first half -bridge shell and second half -bridge shell, first half -bridge shell with second half -bridge shell is the stamping workpiece, second half -bridge shell with first half -bridge shell welded fastening is in order to form the axle housing, and the axle housing is injectd and to be used for holding two the space of semi -axis, two wheel reduction, two wheel reduction and two the semi -axis one -to -one, every wheel reduction's input with correspond the semi -axis links to each other, every wheel reduction's output will correspond the power take off of wheel reduction's input. According to the utility model discloses an axle housing assembly, compact structure, it is small, can satisfy the requirement of large -tonnage load.

Description

Vehicle, integrated electric drive axle and the axle case assy for integrated electric drive axle

Technical field

This utility model relates to technical field of vehicle, in particular to a kind of axle case assy for integrated electric drive axle, has the integrated electric drive axle of this axle case assy and has the vehicle of this integrated electric drive axle。

Background technology

In correlation technique, power motor, variator, power transmission shaft and vehicle bridge are all arranged apart, and power one-level one-level is transmitted, transmission link is many, transmission chain length, transmission efficiency is low, and volume is big, difficult arrangement, and for meeting significant power demand, power motor, variator volume generally relatively big, it is big that vehicle bridge bears moment of torsion, vehicle bridge and variator bonding strength are difficult to ensure card, there is room for improvement。

Utility model content

One of technical problem that this utility model is intended to solve in correlation technique at least to a certain extent。For this, the utility model proposes the axle case assy for integrated electric drive axle that a kind of volume is little, degree of integration is high。

The axle case assy for integrated electric drive axle according to this utility model first aspect includes: two semiaxis；Axle housing assembly, described axle housing assembly is suitable to fix with the case of transmission of described integrated electric drive axle, described axle housing assembly includes: the first half bridge shell and the second half bridge shell, described first half bridge shell and described second half bridge shell are stamping parts, described second half bridge shell and described first half bridge shell are welded and fixed to be formed axle housing, and described axle housing limits the space for holding two described semiaxis；Two hub reduction gears, two described hub reduction gears and two described semiaxis one_to_one corresponding, the input of each described hub reduction gear is connected with corresponding described semiaxis, and the outfan of each described hub reduction gear is by the power output of the input input of corresponding described hub reduction gear。

According to this utility model embodiment for the axle case assy of integrated electric drive axle, simple in construction, light weight, and handling ease, low cost of manufacture, effectively reduce the volume of the electric power assembly of integrated electric drive axle, and be capable of big speed ratio, export moment of torsion greatly。

Alternatively, described second half bridge shell and described first half bridge shell are symmetrical arranged in the longitudinal direction, and described first half bridge shell and in described second half bridge shell one are suitable to fix with the case of transmission of described integrated electric drive axle。

Alternatively, described axle housing assembly also includes cap, and described cap is removably mounted on another in described first half bridge shell and described second half bridge shell to limit the space of the differential mechanism for holding described integrated electric drive axle between described cap, described first half bridge shell and described second half bridge shell。

Alternatively, described second half bridge shell and described first half bridge shell are symmetrical arranged in the vertical direction, and a side of described axle housing is suitable to fix with the case of transmission of described integrated electric drive axle。

Alternatively, described axle housing assembly also includes cap, and described cap is removably mounted on the another side of described axle housing to limit the space of the differential mechanism for holding described integrated electric drive axle between described cap, described first half bridge shell and described second half bridge shell。

Alternatively, described cap is threaded connection part and is removably mounted in described first half bridge shell and described second half bridge shell。

Alternatively, described axle housing assembly also includes cap and backing plate, and described backing plate is weldingly fixed on the another side of described first half bridge shell and described second half bridge shell, and described cap is removably mounted on described backing plate。

Alternatively, described axle housing assembly is provided with multiple vias of the case of transmission being suitable to fixing described integrated electric drive axle。

The two ends of described axle housing assembly are respectively welded and are fixed with two axle tubes, described axle case assy also includes two hub assemblies, each described hub assembly is all installed in rotation on accordingly on described axle tube, two described axle tubes are set in outside two described semiaxis correspondingly, and the outfan of each described hub reduction gear is connected with corresponding described hub assembly。

Alternatively, described hub reduction gear is planetary reducer, described planetary reducer includes sun gear, planetary gear and ring gear, described sun gear is fixed on described semiaxis, described planetary gear engages with described sun gear and described ring gear respectively, and described ring gear is fixed on corresponding described axle tube by ring gear support。

Described ring gear support engages with described ring gear, and described planetary reducer also includes back-up ring, and at least some of of described ring gear support is folded between described back-up ring and described ring gear in the axial direction。

The described axle case assy for integrated electric drive axle also includes two brakes and two brake mounting boards, two described brakes and two described hub assembly one_to_one corresponding, two described brake mounting boards are respectively welded on the two ends being fixed on described axle housing assembly, and two described brakes are fixed on two described brake mounting boards correspondingly each through threaded connector, and the brake drum of two described brakes is fixed on two described hub assemblies correspondingly。

The described axle case assy for integrated electric drive axle also includes and two described hub assemblies, two groups of axial limiting parts one to one, each described ring gear support is set in outside the described axle tube of correspondence each through spline structure, often organize described axial limiting part and all include stop nut and locking gasket, described stop nut and described locking gasket are all set in outside the described axle tube of correspondence and described stop nut connects with corresponding described half-axis sleeve screw thread corresponding described ring gear support and corresponding described hub assembly to be pressed between described locking gasket with the described brake drum of corresponding described brake。

The described axle case assy for integrated electric drive axle also includes differential-speed lock mechanism, described differential-speed lock mechanism is arranged on described axle housing assembly, and is arranged to optionally differential casing locking by two described semiaxis with the differential mechanism of described integrated electric drive axle。

Alternatively, described differential-speed lock mechanism includes: driving cylinder, one end of described driving cylinder is fixed on described axle housing assembly；Transmission component；Sliding sleeve, described sliding sleeve is set in outside described semiaxis and can with described semiaxis synchronous axial system, described driving cylinder drives described sliding sleeve by described transmission component so that described sliding sleeve along described semiaxis the axial unlocked position unlocked at described differential casing and and the lock position of described differential casing locking between move。

Alternatively, described transmission component includes: connecting rod, and one end of described connecting rod is connected rotationally with described driving cylinder；The other end of fork bar, described shifting fork bar and described connecting rod is fixedly linked, and described shifting fork bar is rotatably supported on described axle housing assembly；Shift fork, described shift fork is set on described shifting fork bar by spline structure, and wherein said sliding sleeve is provided with chute, and described shift fork is positioned at described chute。

Alternatively, described differential-speed lock mechanism also includes differential lock sensor assembly, and described differential lock sensor assembly includes: sensor, and described sensor is located on described axle housing assembly；Mobile bar, described mobile bar is movably arranged on described axle housing assembly；Fixture, described fixture is fixed on described shift fork, and is arranged in the swing of described shift fork so that when described sliding sleeve moves to described lock position, driving described motion lever stop to support described sensor so that described sensor sends locking signal。

The described axle case assy for integrated electric drive axle also includes: abs sensor assembly, and described abs sensor assembly is threaded connection part and is fixed on described brake mounting board。

Integrated electric drive axle according to this utility model second aspect includes: electric power assembly, described electric power assembly includes power motor, variator, differential mechanism, described variator has case of transmission, described power motor is fixed on described case of transmission, and described differential mount is on described case of transmission；The axle case assy for integrated electric drive axle described in first aspect, said two semiaxis and described differential mechanism are respectively positioned in described axle housing assembly, and described case of transmission is fixed on described axle housing assembly。

According to integrated electric drive axle of the present utility model, compact conformation, volume is little, and driving-chain is short, it is possible to meet heavy duty requirements。

Vehicle according to this utility model third aspect includes the integrated electric drive axle described in second aspect。

According to vehicle of the present utility model, compact conformation, arrange that easily driving-chain is short, it is possible to meet heavy duty requirements。

Accompanying drawing explanation

Fig. 1 is the structural representation of the electric drive axle assembly for vehicle according to this utility model embodiment；

Fig. 2 is the sectional view of the electric drive axle assembly for vehicle according to this utility model embodiment；

Fig. 3 is the enlarged drawing at the E place in Fig. 2；

Fig. 4 is the enlarged drawing at the F place in Fig. 2；

Fig. 5 is the structural representation of the axle case assy of the electric drive axle assembly for vehicle according to this utility model embodiment；

Fig. 6 is the structural representation of the differential-speed lock mechanism of the electric drive axle assembly for vehicle according to this utility model embodiment；

Fig. 7 is the structural representation of the electric power assembly according to this utility model embodiment；

Fig. 8 is the internal structure schematic diagram of the variator according to this utility model embodiment；

Fig. 9 is the structural representation of the power takeoff according to this utility model embodiment；

Figure 10 is the drive mechanism schematic diagram according to vehicle of the present utility model；

Figure 11 is the front view of the vehicle according to this utility model embodiment。

Accompanying drawing labelling:

Vehicle 1000,

Electric drive axle assembly 100,

Electric power assembly 101,

Power motor 11, motor output shaft VI, coolant circulation passage 111, entrance A, outlet B,

Variator 12, case of transmission the 121, first axle the I, second axle the II, the 3rd axle the III, first shaft part the III-1, second shaft part III-2, the 4th axle IV, input gear q, idle pulley q ', the first gear k1, the second gear k2, one gear driving gear 1, keep off driven gear 1 ', two gear driving gears 2, two keep off driven gears 2 ', three gear driving gears 3, three keep off driven gears 3 ', output gear z, one or four gear lock unit S1, two or three gear lock unit S2, bearing B1, bearing B2,

Differential mechanism 13, differential mechanism driven gear z ',

Power takeoff 14, power taking axle V, power take-off gear k3, power taking lock unit S3, power takeoff housing 141, power takeoff bearing 142,

Electro-hydraulic gearshift execution module 15,

Device 16 to be driven,

Axle case assy 102,

Hub reduction gear 20, hub reduction gear housing 201, sun gear 202, planetary gear 203, ring gear 204, ring gear support 205, back-up ring 206,

Axle housing assembly 21, axle housing the 210, first half bridge shell the 211, second half bridge shell 212, cap 213, brake mounting board 214, backing plate 215,

Semiaxis 22,

Axle tube 23,

Hub assembly 24, hub bearing 241, induction gear ring 242,

Brake 25, brake drum 251,

Abs sensor assembly 26,

Axial limiting part 27, stop nut 271, locking gasket 272,

Differential-speed lock mechanism 28, drive cylinder 281, transmission component 282, connecting rod 2821, fork bar 2822, shift fork 2833,

Sliding sleeve 283, chute 2831, differential lock sensor assembly 284, sensor 2841, mobile bar 2842, fixture 2843, screw rod 285,

Front axle 300,

Bolt 401, bolt 402, bolt 403, bolt 404, bolt 405, bolt 406。

Detailed description of the invention

Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings。The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model。

Describe the integrated electric drive axle 100 according to this utility model embodiment referring to Fig. 1-Figure 11, as Figure 1-Figure 11, include electric power assembly 101 and axle case assy 102 according to the integrated electric drive axle 100 of this utility model embodiment。

As shown in Fig. 1-Fig. 2, Fig. 4 and Fig. 7-Figure 10, electric power assembly 101 includes power motor 11, variator 12 and differential mechanism 13。As shown in Fig. 1-Fig. 2, Fig. 3 and Fig. 5-Fig. 6, axle case assy 102 includes axle housing assembly 21 and two semiaxis 22。Two semiaxis 22 and differential mechanism 13 are respectively positioned in axle housing assembly 21。

It is understandable that, in some optional embodiments, the length of two semiaxis 22 can be consistent, in other optional embodiments, the length of two semiaxis 22 can be inconsistent, for instance when the bulge of axle housing assembly 21 is eccentric structure, as shown in Figure 2, the length of two semiaxis 22 can be unequal, and namely one of them semiaxis 22 is long, and another semiaxis 22 is short。

It is understandable that, the power of power motor 11 output adjusts torsion to pass to differential mechanism 13 through the speed change of variator 12, two outfans of differential mechanism 13 output power to two semiaxis 22, and semiaxis 22 imparts power to coupled wheel, thus driving vehicle 1000 to travel。

As Figure 1-Figure 2, in the integrated electric drive axle 100 of this utility model embodiment, variator 12 has case of transmission 121, and power motor 11 is fixed on case of transmission 121, differential mechanism 13 is bearing on case of transmission 121, and case of transmission 121 is fixed on axle housing assembly 21。Such as, in embodiments more of the present utility model, power motor 11 can be threaded connection part and be fixed on case of transmission 121, and case of transmission 121 can be threaded connection part and be fixed on axle housing assembly 21, and differential mechanism 13 is bearing on case of transmission 121 by bearing。

That is, in integrated electric drive axle 100, case of transmission 121 can as the installation carrier of power motor 11, and the connection member that case of transmission 121 is electric power assembly 101 and axle case assy 102, thus power motor 11, variator 12, differential mechanism 13 and axle case assy 102 are integrated。

Axle case assy 102 for integrated electric drive axle 100 according to this utility model embodiment is described in detail referring to Fig. 1-Fig. 6。As shown in figs 1 to 6,21, two semiaxis 22 of axle housing assembly and two hub reduction gears 20 are included for the axle case assy 102 of integrated electric drive axle 100。Two semiaxis 22, integrated electric drive axle 100 differential mechanism 13 all may be located in the accommodation space that axle housing assembly 21 limits。

Integrated electric drive axle 100 according to this utility model embodiment, electric power assembly 101 and axle case assy 102 become one, and the case of transmission 121 that axle housing assembly 21 is suitable to integrated electric drive axle 100 is fixed。

Axle housing assembly 21 can include the first half bridge shell 211 and the second half bridge shell 212。First half bridge shell 211 is stamping parts, and the second half bridge shell 212 is also stamping parts, and the second half bridge shell 212 and the first half bridge shell 211 are welded and fixed to be formed axle housing 210, and axle housing 210 limits the space for holding two semiaxis 22。Axle housing assembly 21 is formed by being two half bridge shell welding of stamping parts, simple in construction, light weight, and handling ease, low cost of manufacture。

Two hub reduction gears 20 and two semiaxis 22 one_to_one corresponding, such as, when the length of two semiaxis 22 is inconsistent, the semiaxis 22 that one the corresponding length of hub reduction gear 20 is shorter, the semiaxis 22 that the corresponding length of another hub reduction gear 20 is longer, the input of each hub reduction gear 20 is connected with corresponding semiaxis 22, and the outfan of each hub reduction gear 20 is by the power output of the input input of corresponding hub reduction gear 20。

That is, the power of power motor 11 input is delivered separately to two semiaxis 22 through two output portions of differential mechanism 13, power passes to the input of hub reduction gear 20 through semiaxis 22, and through being exported to the wheel of vehicle 1000 by the outfan of hub reduction gear 20 after the deceleration of hub reduction gear 20, thus realizing the hub reduction of vehicle 1000。

In other words, the power of power motor 11 input is after variator 12 slows down, further through the wheel passing to both sides after hub reduction gear 20 deceleration on both sides, it is thus possible to effectively reduce the volume of electric power assembly 101, being used in the axle case assy 102 of integrated electric drive axle 100, it is more reasonable to arrange, and gear ratio is big, output moment of torsion is big, can meet large-tonnage loading demands。

The axle case assy 102 for integrated electric drive axle 100 according to this utility model embodiment, simple in construction, light weight, and handling ease, low cost of manufacture, and connection and reasonable arrangement, by arranging hub reduction gear 20, effectively reduce the volume of the electric power assembly 101 of integrated electric drive axle 100, and be capable of big speed ratio, export moment of torsion greatly such that it is able to meet large-tonnage loading demands。

Integrated electric drive axle 100 according to this utility model embodiment, by power motor 11, variator 12, differential mechanism 13 and axle case assy 102 are integrated, thus compact conformation, assembling is simple, alleviate quality, volume is little, it is little to take up room, be easy on vehicle 1000 arranges, and shorten driving chain, transmission loss is little, transmission efficiency is high, simultaneously by arranging hub reduction gear 20, further efficiently reduce the volume of electric power assembly 101, and be capable of big speed ratio, export moment of torsion greatly such that it is able to meet large-tonnage loading demands。

Axle housing assembly 21 includes the first half bridge shell the 211, second half bridge shell 212 and cap 213。Second half bridge shell 212 and the first half bridge shell 211 are welded to form axle housing 210。

In some optional embodiments, second half bridge shell 212 and the first half bridge shell 211 are symmetrical arranged in the longitudinal direction, a case of transmission be suitable to integrated electric drive axle 100 121 in first half bridge shell 211 and the second half bridge shell 212 is fixed, and cap 213 is removably mounted on another in the first half bridge shell 211 and the second half bridge shell 212。It is to say, the case of transmission 121 that axle housing 210 side (such as leading flank) is suitable to integrated electric drive axle 100 is fixed, another side (such as trailing flank) of axle housing 210 is connected with cap 213。

In this embodiment, arranging of cap 213 can determine at the arrangement form of vehicle 1000 according to the electric drive axle assembly 100 for vehicle 1000, such as, when electric power assembly 101 is positioned at the front of axle case assy 102, and first half bridge shell 211 when being positioned at the front of the second half bridge shell 212, cap 213 is located in the second half bridge shell 212, and case of transmission 121 is fixed in the first half bridge shell 211。Otherwise, cap 213 is located in the first half bridge shell 211, and case of transmission 121 is fixed in the second half bridge shell 212。Wherein, the space of differential mechanism 13 for holding integrated electric drive axle 100 is jointly limited between cap the 213, first half bridge shell 211 and the second half bridge shell 212 three。

In other optional embodiments, as shown in Figure 1 and Figure 5, second half bridge shell 212 and the first half bridge shell 211 are symmetrical arranged in the vertical direction, on one side of axle housing 210 (such as leading flank), namely a side of a side of the first half bridge shell 211 and the second half bridge shell 212 is (such as, the leading flank of the first half bridge shell 211 and the leading flank of the second half bridge shell 212) it is adapted to case of transmission with integrated electric drive axle 100 121 and fixes, cap 213 is removably mounted on axle housing 210；On another side, namely on the another side (such as, the trailing flank of the trailing flank of the first half bridge shell 211 and the second half bridge shell 212) of the another side of the first half bridge shell 211 and the second half bridge shell 212。Wherein, the space of differential mechanism 13 for holding integrated electric drive axle 100 is jointly limited between cap the 213, first half bridge shell 211 and the second half bridge shell 212 three。

Alternatively, cap 213 can be threaded connection part and be removably mounted on axle housing 210, namely on the another side of axle housing 210, specifically, as shown in Figure 1, threaded connector is bolt 403, and cap 213 can pass through to be threaded on the trailing flank of the first half bridge shell 211 and the trailing flank of the second half bridge shell 212 along the circumferentially spaced multiple bolts 403 of this cap 213。So, by being removably mounted in two half bridge shell by cap 213, it is possible to the installation making electric power assembly 101 is more convenient, and fixed structure is simple, easy to operate。Specifically, cap 213 makes assembled, can efficiently reduce the electric power assembly 101 of integrated electric drive axle 100 and the assembly difficulty of two semiaxis 22, be more beneficial for the maintenance of the differential mechanism 13 of integrated electric drive axle 100。

Further, in two symmetrically arranged embodiments of half bridge shell above-below direction, in order to reduce the impact on cap 213 installation accuracy of the foozle of the first half bridge shell 211 and the second half bridge shell 212, strengthen the connective stability of cap 213 and two half bridge shell, it is provided with backing plate 215 between cap 213 and axle housing 210 (i.e. two half bridge shell), backing plate 215 can be weldingly fixed on the another side of axle housing 210, namely, on the another side of the first half bridge shell 211 and the another side of the second half bridge shell 212, cap 213 is detachably arranged on backing plate 215。

Specifically, as shown in Figure 4, backing plate 215 can be weldingly fixed on the trailing flank of the first half bridge shell 211 and the trailing flank of the second half bridge shell 212, and backing plate 215 is folded between cap 213 and the first half bridge shell 211, and backing plate 215 is folded between cap 213 and the second half bridge shell 212。Cap 213 is detachably arranged on backing plate 215 by multiple bolts 403。

Preferably, axle housing assembly 21 is provided with multiple vias of the case of transmission 121 being suitable to fixing integrated electric drive axle 100, it is understandable that, integrated electric drive axle 100 also includes multiple bolt 401, the case of transmission 121 of integrated electric drive axle 100 is provided with multiple screwed hole, axle housing assembly 21 is provided with and multiple screwed holes multiple vias one to one, multiple bolts 401 and multiple via one_to_one corresponding, each bolt 401 is fixed in the screwed hole of correspondence to be fixed on by case of transmission 121 on the opposite side end face opened wide at the middle part of axle housing 210 through corresponding via。

It is to say, the integrated electric drive axle 100 according to this utility model embodiment, screwed hole is arranged on case of transmission 121, and via is arranged on axle housing 210, so under ensureing bonding strength situation, it is also possible to making variator 12 volume as far as possible little, structure is more compact。And, this mounting means, reduce further the difficulty of processing of axle housing assembly 21。

Further, as Fig. 2 and Fig. 3 shows, the two ends (i.e. left end and right-hand member) of axle housing assembly 21 can be respectively welded and be fixed with two axle tubes 23。

Axle case assy 102 can also include 24, two brakes 25 of two hub assemblies and two brake mounting boards 214, each hub assembly 24 is all installed in rotation on accordingly on axle tube 23, two axle tubes 23 are set in outside two semiaxis 22 correspondingly, two hub reduction gears 20 and two hub assembly 24 one_to_one corresponding, the input of each hub reduction gear 20 is connected with corresponding semiaxis 22, and the outfan of each hub reduction gear 20 is connected with corresponding hub assembly 24。

In specific embodiments more of the present utility model, as it is shown on figure 3, hub reduction gear 20 is planetary reducer。Planetary reducer includes sun gear 202, planetary gear 203 and ring gear 204, sun gear 202 is fixed on semiaxis 22, with with semiaxis 22 synchronous axial system, planetary gear 203 engages with sun gear 202 and ring gear 204 respectively, and ring gear 204 is fixed on corresponding axle tube 23 by ring gear support 205。Thus, volume is little, and transmission efficiency is high, and reduction range is wide。

Alternatively, as it is shown on figure 3, hub reduction gear 20 includes hub reduction gear housing 201, hub reduction gear housing 201 can be fixed on hub assembly 24, thus reduces the volume of axle case assy 102 and compact conformation further, saves space。

Further, ring gear support 205 engages with ring gear 204, planetary reducer can also include back-up ring 206, the at least some of of ring gear support 205 is folded between back-up ring 206 and ring gear 204 in the axial direction, thus ring gear 204 is carried out axial limiting, ensure that the assembly precision of hub reduction gear 20 and hub assembly 24 preferably。

Two brakes 25 and two hub assembly 24 one_to_one corresponding, namely a corresponding hub assembly 24 of brake 25 is to be braked this hub assembly 24。Two brake mounting boards 214 are respectively welded on the two ends being fixed on axle housing assembly 21, two brakes 25 are threaded connection part and are fixed on correspondingly on two brake mounting boards 214, and the brake drum 251 of two brakes 25 is fixed on two hub assemblies 24 correspondingly。

Axle case assy 102 can also include two groups of axial limiting parts 27, two groups of axial limiting parts 27 and two hub assembly 24 one_to_one corresponding, and namely one group of corresponding hub assembly 24 of axial limiting part 27 is to carry out axial limiting to this hub assembly 24。Each ring gear support 205 is set in outside the axle tube 23 of correspondence each through spline structure, and often group axial limiting part 27 all includes stop nut 271 and locking gasket 272。Stop nut 271 and locking gasket 272 are all set in outside the axle tube 23 of correspondence, and stop nut 271 is threaded with corresponding axle tube 23 corresponding ring gear 204 and corresponding hub assembly 24 to be pressed between locking gasket 272 with the brake drum 251 of corresponding brake 25。

It is understandable that, 25, two brake mounting boards of 23, two brakes of 24, two axle tubes of 20, two hub assemblies of two hub reduction gears equal one_to_one corresponding of 27, two semiaxis of 214, two groups of axial limiting parts 22, and on the width of vehicle 1000, it is positioned at the two ends, left and right of axle housing assembly 21 with being respectively symmetrically。

Below for right-hand member, the hub reduction gear 20 of this end, hub assembly 24, axle tube 23, brake 25, brake mounting board 214, the annexation of axial limiting part 27 and position relationship are described:

Specifically, as it is shown on figure 3, the right-hand member of axle housing assembly 21 is welded with an axle tube 23, the hub assembly 24 of right-hand member is installed in rotation on the axle tube 23 of right-hand member, and the axle tube 23 of right-hand member is set in outside the semiaxis 22 on right side。Hub assembly 24 is a part for wheel, and the rotation of hub assembly 24 can realize the rotation of wheel。More specifically, as shown in Figure 3, the axle tube 23 of the right-hand member traverse right-hand member of the semiaxis 22 of right-hand member, and it is threaded connection the hub reduction gear 20 of part (bolt 406 in Fig. 3) and right-hand member (such as, hub reduction gear housing 201) tighten together, the left end of the semiaxis 22 of right-hand member is connected with differential mechanism 13 by spline, the power that differential mechanism 13 exports is passed to the input of the hub reduction gear 20 of right-hand member by the semiaxis 22 of right-hand member, deceleration through the hub reduction gear 20 of right-hand member, then the hub assembly 24 that power passes to right-hand member via the outfan of the hub reduction gear 20 of right-hand member is driven vehicle wheel rotation。

The brake 25 of the right-hand member corresponding with the hub assembly 24 of right-hand member is arranged on the brake mounting board 214 of right-hand member, the brake mounting board 214 of right-hand member is fixed on the right-hand member of axle housing assembly 21, the brake drum 251 of the brake 25 of right-hand member is also fixed on the hub assembly 24 of right-hand member to rotate with hub assembly 24, such as brake mounting board 214 can be sheathed and be weldingly fixed in the first half bridge shell 211 and second half bridge shell 212 of axle housing assembly 21, the brake 25 of right-hand member is threaded connection part and is fixed on the brake mounting board 214 of right-hand member, and the brake drum 251 of the brake 25 of right-hand member can pass through bolt 405 and be fixed on the hub assembly 24 of right-hand member, wherein threaded connector and bolt 405 are multiple。Wherein in the axial direction, namely on the left and right directions of vehicle 1000, the brake 25 of corresponding end is between the brake mounting board 214 and the hub assembly 24 of corresponding end of corresponding end。

The axial limiting part 27 corresponding with the hub assembly 24 of right-hand member is right-hand member group, then the stop nut 271 of right-hand member group and the locking gasket 272 of right-hand member group are all set in outside the axle tube 23 of right-hand member, and the stop nut 271 of right-hand member group threadeds with the axle tube 23 of right-hand member the ring gear support 205 of right-hand member and the hub assembly 24 of right-hand member to be pressed between the brake drum 251 of the locking gasket 272 of right-hand member group and the brake 25 of right-hand member。Thus hub assembly 24 can carry out axial locking by the cooperation of the brake drum 251 of stop nut 271 and brake 25, and in like manner, hub reduction gear 20 can also carry out axial locking by the cooperation of the brake drum 251 of stop nut 271 and brake 25。Specifically, the brake drum 251 of hub reduction gear housing 201, brake 25), being fixed together in part through bolt 405 of hub assembly 24。

Locking gasket 272 is possible to prevent stop nut 271 to get loose。Specifically, each hub assembly 24 is rotatably sleeved on the axle tube 23 of correspondence each through hub bearing 241, and axial limiting part 27 can adjust the play of hub bearing 241。

Pass through above description, those skilled in the art, the hub reduction gear 20 of left end, hub assembly 24, axle tube 23, brake 25, brake mounting board 214, the annexation of axial limiting part 27 and position relationship can be derived, no longer describe in detail at this。

Preferably, axle case assy 102 can also include two abs sensor assemblies 26, two abs sensor assemblies 26 can be threaded connection part and be fixed on two brake mounting boards 214 correspondingly, namely the abs sensor assembly 26 of left end is fixed on the brake mounting board 214 of left end, and the abs sensor assembly 26 of right-hand member is fixed on the brake mounting board 214 of right-hand member。Alternatively, threaded connector can be screw。

Specifically, forming induced voltage signal when the induction gear ring 242 of the transducer magnetic head of abs sensor assembly 26 and hub assembly 24 rotates, signal exports control system (such as the ECU of vehicle 1000), controls locking when system control brake 25 is braked。

Differential-speed lock mechanism 28 is arranged on axle housing assembly 21, and differential-speed lock mechanism 28 is arranged to optionally differential casing locking by two semiaxis 22 with the differential mechanism 13 of integrated electric drive axle 100。

The operation principle of differential-speed lock mechanism 28 is, when driving wheel-slip for one, differential casing and semiaxis 22 are locked integral, differential mechanism 13 is made to lose differential action, such that it is able to all torsion torque is transferred on the driving wheel of opposite side, for operating in the engineering truck particular importance that muddy road easily skids。

In some embodiments of utility model, as shown in Figure 6, differential-speed lock mechanism 28 includes driving cylinder 281, transmission component 282 and sliding sleeve 283。The one end driving cylinder 281 is fixed on axle housing assembly 21, as shown in Figure 6, drives one end of cylinder 281 to be threaded on axle housing assembly 21 by screw rod 285。The other end driving cylinder 281 is connected with sliding sleeve 283 by transmission component 282。

Sliding sleeve 283 is set in outside semiaxis 22, and sliding sleeve 283 can with semiaxis 22 synchronous axial system, cylinder 281 is driven to drive sliding sleeve 283 by transmission component 282, so that sliding sleeve 283 moves between unlocked position and lock position along the axial of semiaxis 22, when sliding sleeve 283 is positioned at unlocked position, sliding sleeve 283 unlocks with differential casing, now differential mechanism 13 normally realizes differential function, when sliding sleeve 283 is positioned at lock position, sliding sleeve 283 and differential casing locking are integrated, and differential mechanism 13 loses differential mechanism 13 function。

Specifically, sliding sleeve 283 can be connected by spline structure with semiaxis 22, the side of sliding sleeve 283 can be provided with sliding sleeve 283 teethed end faces, differential casing is provided with differential mechanism teethed end faces, sliding sleeve teethed end faces is relative with differential mechanism teethed end faces, and sliding sleeve teethed end faces optionally coordinates with differential mechanism teethed end faces with locking sliding sleeve 283 and differential casing。

Preferably, as shown in Figure 6, transmission component 282 can include connecting rod 2821, fork bar 2822 and shift fork 2833。One end of connecting rod 2821 is connected rotationally with described driving cylinder 281, the other end of connecting rod 2821 and fork bar 2822 are fixedly linked, and fork bar 2822 is rotatably supported on axle housing assembly 21, shift fork 2833 is set on fork bar 2822 by spline structure, wherein sliding sleeve 283 is provided with chute 2831, and shift fork 2833 is positioned at chute 2831。Thus, the simple in construction of transmission component 282, and arrange easily。

Further, differential-speed lock mechanism 28 can also include differential lock sensor assembly 284。Differential lock sensor assembly 284 can include sensor 2841, mobile bar 2842 and fixture 2843, sensor 2841 is located on axle housing assembly 21, mobile bar 2842 is movably arranged on axle housing assembly 21, namely move bar 2842 can move relative to axle housing assembly 21, fixture 2843 is fixed on shift fork 2833, and fixture 2843 is arranged in shift fork 2833 and swings so that when sliding sleeve 283 moves to lock position, it is possible to drive mobile bar 2842 only to support sensor 2841 so that sensor 2841 sends locking signal。Alternatively, fixture 2843 can be sheet metal component, and sheet metal component can pass through bolt 404 screw threads for fastening on shift fork 2833。

For the differential-speed lock mechanism 28 shown in Fig. 6, when driving cylinder 281 ventilate or die, connecting rod 2821 rotates around the axis of fork bar 2822 under the driving of driving cylinder 281, and drive fork bar 2822 to rotate, owing to fork bar 2822 is rotatably supported on axle housing assembly 21, and fork bar 2822 is connected by spline structure with shift fork 2833, thus fork bar 2822 can drive shift fork 2833 to swing, by coordinating of shift fork 2833 and chute 2831, shift fork 2833 promotes sliding sleeve 283 moving axially along semiaxis 22, engage thus controlling the tooth of the sliding sleeve teethed end faces of sliding sleeve 283 with the tooth of the differential mechanism teethed end faces on differential mechanism 13 or disconnect, final realize that two, left and right semiaxis 22 is locked or differential。

Axle case assy 102 according to this utility model embodiment, by arranging differential-speed lock mechanism 28, the differential mechanism 13 different driving cycles according to vehicle 1000 can be made, realize differential mechanism 13 differential function or release the differential function of differential mechanism 13, particularly when the vehicle 1000 that bad working environments is run, vehicle 1000 has strong impetus, and differential-speed lock mechanism 28 is integrated on axle housing assembly 21, compact conformation, firmly install, working stability, reliability is high, makes that integrated electric drive axle 100 reliability is higher, function is more perfect。

In brief, integrated electric drive axle 100 according to this utility model embodiment, by case of transmission 121, power motor 11 and axle case assy 102 are coupled together, realize including power motor 11, variator 12, the electric power assembly 101 of differential mechanism 13 and include the integrated layout of axle case assy 102 of axle housing assembly 21 and two semiaxis 22, improve transmission efficiency, alleviate quality, save space。

Alternatively, as shown in Figure 4, electric power assembly 101 can pass through multiple bolts 401 and be fixed on axle case assy 102, thus being integrated into integrated electric drive axle 100。

As shown in Fig. 1-Fig. 2, Fig. 4 and Fig. 7-Figure 10, electric power assembly 101 includes power motor 11, variator 12, differential mechanism 13, electro-hydraulic gearshift execution module 15, power takeoff 14, and wherein variator 12 has case of transmission 121。

As shown in Figure 4, power motor 11 can pass through multiple bolts 402 and be fixed on case of transmission 121, multiple bolt 402 being provided at circumferentially spaced around power motor 11。Power motor 11 can be permagnetic synchronous motor。Power motor 11 is by triple line external power supply, it is achieved power motor 11 drives。

As it is shown in fig. 7, power motor 11 includes active cooling structure。Active cooling structure is for actively cooling down power motor 11。In some optional embodiments, active cooling structure includes the coolant circulation passage 111 for power motor 11 cooling, by coolant circulation in coolant circulation passage 111, power motor 11 is cooled down。As it is shown in fig. 7, coolant circulation passage 111 has entrance A and outlet B, coolant can enter coolant circulation passage 111 from entrance A, and after carrying out heat exchange with power motor 11, from outlet B output。

Thus, by making power motor 11 carry active cooling structure, it is possible to prevent power motor 11 overheated, indirect raising efficiency, prevent power motor 11 from burning out, and rotating speed high-power, high and long operational requirements can be met, mate with the operating condition of vehicle 1000 better, and may be used for light-duty to heavy complete set vehicle。

Preferably, active cooling structure can also include coolant actuator, and coolant actuator is located in coolant circulation passage 111 to drive coolant to flow in coolant circulation passage 111。Alternatively, coolant actuator can be cooling oil pump。Thus, active cooling structure carries coolant actuator, and degree of integration is high, and assembling is simple, and structure is more compact, in hgher efficiency。

Certainly in optional embodiments more of the present utility model, coolant circulation passage 111 can also be connected with the coolant of the outside being positioned at integrated electric drive axle 100, that is, coolant can be introduced from outside into, and namely the coolant circulation passage 111 of active cooling structure can share coolant actuator with the coolant peripheral passage of other parts on vehicle 1000。

Case of transmission 121 can pass through bolt 401 and be fixed on the axle housing assembly 21 of axle case assy 102。Alternatively, case of transmission 121 can include at least two part being detachably connected, by case of transmission 121 is arranged to detachably connected form, the installation of the parts such as the gear within variator 12, axle can be facilitated, tooth will not be touched during assembling, assembly process process is good, and be easy to power motor 11, axle housing assembly 21 integrated, it is also possible to facilitate differential mechanism 13 to be fit in axle housing assembly 21。

Variator 12 includes transmission power input portion and transmission power output portion。The motor output shaft VI of transmission power input portion and power motor 11 is joined directly together, transmission power output cage structure becomes to be suitable to export to differential mechanism 13 from the power in transmission power input portion, and exports the wheel to vehicle 1000 to drive vehicle 1000 to travel by differential mechanism 13。Alternatively, as shown in Figure 4, differential mechanism 13 can be bearing on case of transmission 121 by differential bearing。

Electric power assembly 101 can also include power takeoff 14, and power takeoff 14 includes power takeoff input and power takeoff outfan。Power takeoff input is arranged to and at least one linkage in transmission power input portion and transmission power output portion。That is, power takeoff input can be arranged to link with transmission power input portion, power takeoff input can also be arranged to link with transmission power output portion, and power takeoff input can also be arranged to the linkage of transmission power input portion and link with transmission power output portion simultaneously。Wherein " linkage " refer to that the action between two parts has actively and driven relation, a component actuation drives another component actuation。

Power takeoff outfan is arranged to be selectively engageable power takeoff input to export the power from power takeoff input。It is to say, when power takeoff outfan engages with power takeoff input, the power from power takeoff input can be exported to device 16 to be driven by power takeoff outfan。

Alternatively, power takeoff 14 is fixed on case of transmission 121, say, that power takeoff 14 is integrated on case of transmission 121, thus the more compact structure of electric power assembly 101。Specifically, power takeoff 14 can include power takeoff housing 141, and this power takeoff housing 141 is connected with case of transmission 121 or power takeoff housing 141 is integrally formed with case of transmission 121。

When variator 12 only needs to drive vehicle 1000, the power of power motor 11 passes sequentially through transmission power input portion, transmission power output portion, differential mechanism 13 export to the wheel of vehicle 1000, thus driving vehicle 1000 to travel。

When needs drive device 16 to be driven, a part for the power of power motor 11 passes sequentially through transmission power input portion, transmission power output portion, differential mechanism 13 export to the wheel of vehicle 1000。Another part of the power of power motor 11 passes sequentially through at least one in transmission power input portion and transmission power output portion, power takeoff input, power takeoff outfan export to device 16 to be driven。

In a specific embodiment of the present utility model, device 16 to be driven is an oil pump, and this oil pump, under the driving of power takeoff 14, can produce high pressure liquid force feed, power source can be provided for the automobile-bucket lifting mechanism of vehicle 1000 etc., meet the demand of other power of car load。

It is to say, the integrated electric drive axle 100 according to this utility model embodiment, by arranging power takeoff 14, it is possible to power is exported mechanism in need, more market demand can be met, make integrated electric drive axle 100 more practical。Additionally, due to power takeoff input and at least one linkage in transmission power input portion and transmission power output portion, thus drive disk assembly is few, transmission efficiency is high, and can reduce rate of breakdown, reduces manufacturing cost。

Power takeoff input can include power take-off gear k3, and power takeoff outfan can include power taking axle V, and as shown in Figure 9 and Figure 10, power taking axle V can pass through power takeoff bearing 142 and be bearing on power takeoff housing 141。Power take-off gear k3 empty set is on power taking axle V, and namely power take-off gear k3 can rotate relative to power taking axle V, say, that when power take-off gear k3 rotates, power taking axle V can not rotate。

Power takeoff 14 can also include power taking lock unit S3, power taking lock unit S3 and be arranged to optionally synchronize power take-off gear k3 and power taking axle V。It is to say, when device 16 to be driven needs power, power taking lock unit S3 is synchronize with power taking axle V by power take-off gear k3, thus the power that power take-off gear k3 exports is exported to device 16 to be driven by power taking axle V。When device 16 to be driven does not need power, power take-off gear k3 separates with power taking axle V, and power take-off gear k3 can dally around power taking axle V。

In a specific embodiment of the present utility model, as shown in figs, variator 12 can include first axle the I, second axle the II, the 3rd axle the III and the 4th axle IV。First axle the I, second axle the II, the 3rd axle the III and the 4th axle IV is bearing on case of transmission 121 each through bearing。Specifically, as shown in figs, first axle the I, second axle the II, the 3rd axle the III and the 4th axle IV all extends along the width of vehicle 1000, the width of vehicle 1000 and the left and right directions of vehicle 1000, and power motor 11 can be arranged in the right side of case of transmission 121。

First axle I is connected with the motor output shaft VI of power motor 11, for instance shown in Fig. 4, and the first axle I can be connected by spline structure with motor output shaft VI, and specifically, the first axle I has internal spline, and motor output shaft VI has the external splines coordinated with this internal spline。Certainly, the first axle I can also be connected by shaft coupling with motor output shaft VI。Electric power assembly 101 according to this utility model embodiment, by the motor output shaft VI of power motor 11 and the first axle I being joined directly together, driving-chain is short, and simple in construction。

As shown in figs, the first axle I being fixed with input gear q, namely input gear q with the first axle I synchronous axial system, the second axle II can be fixed with idle pulley q ', and namely idle pulley q ' can with the second axle II synchronous axial system, and idle pulley q ' engages with input gear q。

As shown in Fig. 4 and Figure 10,3rd axle III includes the first shaft part III-1 and the second shaft part III-2 being coaxially disposed, and second shaft part III-2 be arranged to optionally engage with the first shaft part III-1, that is, second shaft part III-2 can engage with the first shaft part III-1 with the first shaft part III-1 synchronous axial system, and the second shaft part III-2 and the first shaft part III-1 can also each individually rotate。

As shown in Figure 4, one end of first shaft part III-1 is set in outside the second shaft part III-2, namely one end near the first shaft part III-1 of the second shaft part III-2 is bearing on the first shaft part III-1, first shaft part III-1 is further supported on case of transmission 121, specifically, first shaft part III-1 is hollow axle, first shaft part III-1 has dead eye, one end near the first shaft part III-1 of second shaft part III-2 is bearing in the dead eye (i.e. the internal perisporium of the first shaft part III-1) of the first shaft part III-1 by bearing B1, first shaft part III-1 (i.e. the periphery wall of the first shaft part III-1) is bearing on case of transmission 121 also by bearing B2, bearing B1 includes a pair taper roll bearing being positioned at one end that the second axle II holds, bearing B2 includes two cylinder roller bearings laying respectively at the two ends of the first shaft part III-1。Being arranged by this inside and outside different types of bearing, the stress making the 3rd axle III is more reasonable, indirectly extends the service life of variator 12。

First shaft part III-1 is fixed with the first gear k1, namely the first gear k1 can with the first shaft part III-1 synchronous axial system, and first shaft part III-1 when not engaging with the second shaft part III-2, first gear k1 can relative second shaft part III-2 freely rotatable, when first shaft part III-1 engages with the second shaft part III-2, first gear k1 also can with the second shaft part III-2 synchronous axial system, first gear k1 engages with idle pulley q ', second shaft part III-2 is set with multiple gear driven gear, namely gear driven gear can rotate relative to the second shaft part III-2, that is, when gear driven gear rotates, second shaft part III-2 can not rotate。

Being fixed with the second gear k2 and multiple gear driving gear on 4th axle IV, namely the second gear k2 can with the 4th axle IV synchronous axial system, and each of which in multiple gear driving gear can with the 4th axle IV synchronous axial system。Second gear k2 and the first gear k1 engagement, multiple gear driving gears engage correspondingly with multiple gear driven gears。

Alternatively, length and the structure of the 3rd axle the III and the 4th axle IV have multiple, and on the 3rd axle the III and the 4th axle IV, meshed gears also has different logarithms, thus variator 12 has more gear to export。

Wherein, first axle I, input gear q, the second axle II, idle pulley q ' constitute transmission power input portion, and the 3rd axle the III, first gear k1, the 4th axle the IV, second gear k2, multiple gear driving gear and multiple gear driven gear constitute transmission power output portion。

Further, as shown in Fig. 4 and Figure 10, second shaft part III-2 is further fixed on output gear z, namely output gear z can with the second shaft part III-2 synchronous axial system, output gear z can engage with the differential mechanism driven gear z ' of differential mechanism 13, thus the power exported by power motor 11, is delivered to differential mechanism 13 through variator 12, and driving semiaxis 22 and wheel by differential mechanism 13, it is achieved vehicle 1000 travels。

It is further preferred that input gear q, idle pulley q ', the first gear k1, the second gear k2, multiple gear driving gear and multiple gear driven gear are angular gear。Output gear z is also angular gear。Thus, the travelling gear of electric power assembly 101 all adopts angular gear, and whole variator 12 stable drive, noise is low, transmission efficiency is high and driving torque is big。

In a specific embodiment of the present utility model, multiple gear driven gears include a gear driven gear 1 ', two and keep off driven gear 2 ' and three gear driven gears 3 '。Multiple gear driving gears include a gear driving gear 1, two and keep off driving gear 2 and three gear driving gears 3, one gear driven gear 1 ' engages with a gear driving gear 1, two gear driven gears 2 ' keep off driving gears 2 with two and engage, and three gear driven gears 3 ' keep off driving gear 3 with three and engage。

Transmission power output portion can also include one or four gear lock unit S1 and two three and keep off lock unit S2。One or four gear lock unit S1 are arranged to optionally in the first shaft part III-1 and gear driven gear 1 ' be engaged with the second shaft part III-2。That is, second shaft part III-2 can pass through one or four gear lock unit S1 and the first shaft part III-1 engages with the first shaft part III-1 synchronous axial system, or the second shaft part III-2 can pass through one or four gear lock unit S1 and one gear driven gears 1 ' and engage so that the second shaft part III-2 and keeps off driven gear 1 ' synchronous axial system, or not only the second shaft part III-2 can also be positioned at and not engage with the first shaft part III-1 but also do not keep off, with one, the centre position that driven gear 1 ' engages。

Two or three gear lock unit S2 are arranged to optionally in two gear driven gears 2 ' and three gear driven gears 3 ' be engaged with the second shaft part III-2。That is, second shaft part III-2 can pass through two or three gear lock unit S2 and two gear driven gears 2 ' and engage so that the second shaft part III-2 and two keeps off driven gear 2 ' synchronous axial system, or the second shaft part III-2 can pass through two or three gear lock unit S2 and three gear driven gears 3 ' and engage so that the second shaft part III-2 and three keeps off driven gear 3 ' synchronous axial system, or the second shaft part III-2 can also be positioned at the centre position not only not engaging with two gear driven gears 2 ' but also not engaging with three gear driven gears 3 '。

Wherein, as shown in Fig. 4 and Figure 10, output gear z is positioned between a gear driven gear 1 ' and two gear driven gears 2 '。The thus more compact structure of variator 12。

In this four speed transmission 12, the two ends of the first axle I are bearing on case of transmission 121 by paired taper roll bearing, idle pulley q ' and the second axle II are connected by inside and outside spline structure, second axle II is bearing on case of transmission 121 by the taper roll bearing that two ends are paired, three gear driven gears 3 ', two gear driven gears 2 ' and one gear driven gear 1 ' is connected on the second shaft part III-2 by bearing fit, two or three gear lock unit S2, one or four gear lock unit S1 and output gear z by spline structure cooperation be connected on the second shaft part III-2。Second gear k2 is connected on the 4th axle IV by spline structure, and three gear driving gears 3, two keep off driving gear 2 and a gear driving gear 1 is connected on the 4th axle IV each through spline structure。Differential mechanism driven gear z ' can be threaded connection the form of part or welding and be fixedly mounted on differential mechanism 13, drives differential mechanism 13 to rotate。

From the above description it can be seen that this utility model provides a four speed transmission 12, speed ratio is big, moment of torsion is big, have stronger power performance, good maneuverability, can meet the instructions for use of heavy goods vehicles。

The work process of the integrated electric drive axle 100 according to this utility model embodiment is described referring to Figure 10:

The power of power motor 11 output exports to the first axle I by motor output shaft VI, power transmission is given the idle pulley q ' on the second axle II by the input gear q on the first axle I, idle pulley q ' is delivered to the first gear k1 on the first shaft part III-1 power, first gear k1 drives the first shaft part III-1 synchronous axial system, first gear k1 imparts power to the second gear k2, and the second gear k2 drives the 4th axle IV synchronous axial system。

One or four gear lock unit S1 engage gear driven gear 1 ' and second shaft part III-2, and two or three gear lock unit S2 are centrally located, and variator 12 is a gear；Two or three gear lock unit S2 engage two gear driven gear 2 ' and the second shaft parts III-2, and one or four gear lock unit S1 are centrally located, and variator 12 is two gears；Two or three gear lock unit S2 engage three gear driven gear 3 ' and the second shaft parts III-2, and one or four gear lock unit S1 are centrally located, and variator 12 is three gears；One or four gear lock unit S1 engage the first shaft part III-1 and the second shaft part III-2, and two or three gear lock unit S2 are centrally located, and variator 12 is four gears；During neutral, one or four gear lock unit S1 and two three keep off lock unit S2 and are respectively positioned on centre position。During reverse gear, one or four gear lock unit S1 engage gear driven gear 1 ' and second shaft part III-2, and power motor 11 reverses (turning to time namely with forward gear is contrary)。

That is, when corresponding gear driven gear and the second shaft part III-2 engage, power through the first axle I, input gear q, idle pulley q ' the first gear k1, the second gear k2 engagement corresponding to this gear driven gear gear driving gear pass to the 3rd axle III, 3rd axle III exports to output gear z, output gear z engages with differential mechanism driven gear z ', thus driving differential mechanism 13 to rotate；When first shaft part III-1 engages with the second shaft part III-2, power is directly passed to the second shaft part III-2 through the first axle I, input gear q, idle pulley q ' the first gear k1, the first shaft part III-1, to drive output gear z, and engaged with differential mechanism driven gear z ' by output gear z, thus driving differential mechanism 13 to rotate。

Preferably, power take-off gear k3 and the second direct engaged transmission of gear k2, thus driving-chain is short, compact conformation, it is more beneficial for driving device 16 to be driven。

Preferably, as shown in Figure 1 and Figure 7, electric power assembly 101 can also include electro-hydraulic gearshift and perform module 15, and electro-hydraulic gearshift performs module 15 and is used for controlling variator 12, and electro-hydraulic gearshift performs module 15 and is arranged on case of transmission 121。This electro-hydraulic gearshift performs in module 15 equipped with the senser element matched and delicate flow valve, outside electronic control unit can be responded by the signal collected, the time point of the switching speed of variator 12, gear switching can be accurately controlled, make variator 12 smooth gear shifting, fast response time, realize infinitely variable speeds, maneuverability is good, and can reduce driving fatigue。

Being briefly described according to vehicle 1000 of the present utility model referring to Figure 11, the vehicle 1000 according to this utility model embodiment, including the integrated electric drive axle 100 of any one in above-described embodiment。In some embodiments, vehicle 1000 can include along the spaced apart front axle 300 of the fore-and-aft direction of vehicle 1000 and back axle, wherein back axle can adopt the electric drive axle assembly 100 for vehicle 1000 according to this utility model embodiment, thus driving-chain is short, take up room little, it is simple to the arrangement of vehicle 1000, be particularly easy to the installation of the battery system of pure electric automobile, installation for battery system saves space, is conducive to promoting the flying power of battery。

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model。

Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic。Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature。In description of the present utility model, " multiple " are meant that at least two, for instance two, three etc., unless otherwise expressly limited specifically。

In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction。For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be。

In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact。And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature。Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature。

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example。In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example。And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner。Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art。

Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is illustrative of, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in scope of the present utility model, revises, replace and modification by those of ordinary skill in the art。

Claims (20)

1. the axle case assy for integrated electric drive axle, it is characterised in that including:

Two semiaxis；

Axle housing assembly, described axle housing assembly is suitable to fix with the case of transmission of described integrated electric drive axle, described axle housing assembly includes: the first half bridge shell and the second half bridge shell, described first half bridge shell and described second half bridge shell are stamping parts, described second half bridge shell and described first half bridge shell are welded and fixed to be formed axle housing, and described axle housing limits the space for holding two described semiaxis；

Two hub reduction gears, two described hub reduction gears and two described semiaxis one_to_one corresponding, the input of each described hub reduction gear is connected with corresponding described semiaxis, and the outfan of each described hub reduction gear is by the power output of the input input of corresponding described hub reduction gear。

2. the axle case assy for integrated electric drive axle according to claim 1, it is characterized in that, described second half bridge shell and described first half bridge shell are symmetrical arranged in the longitudinal direction, and described first half bridge shell and in described second half bridge shell one are suitable to fix with the case of transmission of described integrated electric drive axle。

3. the axle case assy for integrated electric drive axle according to claim 2, it is characterized in that, described axle housing assembly also includes cap, and described cap is removably mounted on another in described first half bridge shell and described second half bridge shell to limit the space of the differential mechanism for holding described integrated electric drive axle between described cap, described first half bridge shell and described second half bridge shell。

4. the axle case assy for integrated electric drive axle according to claim 1, it is characterized in that, described second half bridge shell and described first half bridge shell are symmetrical arranged in the vertical direction, and a side of described axle housing is adapted to fix with the case of transmission of described integrated electric drive axle。

5. the axle case assy for integrated electric drive axle according to claim 4, it is characterized in that, described axle housing assembly also includes cap, and described cap is removably mounted on the another side of described axle housing to limit the space of the differential mechanism for holding described integrated electric drive axle between described cap, described first half bridge shell and described second half bridge shell。

6. the axle case assy for integrated electric drive axle according to claim 5, it is characterised in that described cap is threaded connection part and is removably mounted on described axle housing。

7. the axle case assy for integrated electric drive axle according to claim 4, it is characterized in that, described axle housing assembly also includes cap and backing plate, and described backing plate is weldingly fixed on the another side of described axle housing, and described cap is removably mounted on described backing plate。

8. the axle case assy for integrated electric drive axle according to claim 1, it is characterised in that described axle housing assembly is provided with multiple vias of the case of transmission being suitable to fixing described integrated electric drive axle。

9. the axle case assy for integrated electric drive axle according to claim 1, it is characterized in that, the two ends of described axle housing assembly are respectively welded and are fixed with two axle tubes, described axle case assy also includes two hub assemblies, each described hub assembly is all installed in rotation on accordingly on described axle tube, two described axle tubes are set in outside two described semiaxis correspondingly, and the outfan of each described hub reduction gear is connected with corresponding described hub assembly。

10. the axle case assy for integrated electric drive axle according to claim 9, it is characterized in that, described hub reduction gear is planetary reducer, described planetary reducer includes sun gear, planetary gear and ring gear, described sun gear is fixed on described semiaxis, described planetary gear engages with described sun gear and described ring gear respectively, and described ring gear is fixed on corresponding described axle tube by ring gear support。

11. the axle case assy for integrated electric drive axle according to claim 10, it is characterized in that, described ring gear support engages with described ring gear, described planetary reducer also includes back-up ring, and at least some of of described ring gear support is folded between described back-up ring and described ring gear in the axial direction。

12. the axle case assy for integrated electric drive axle according to claim 11, it is characterised in that

Also include two brakes and two brake mounting boards, two described brakes and two described hub assembly one_to_one corresponding, two described brake mounting boards are respectively welded on the two ends being fixed on described axle housing assembly, and two described brakes are fixed on two described brake mounting boards correspondingly each through threaded connector, and the brake drum of two described brakes is fixed on two described hub assemblies correspondingly。

13. the axle case assy for integrated electric drive axle according to claim 12, it is characterized in that, also include and two described hub assemblies, two groups of axial limiting parts one to one, each described ring gear support is set in outside the described axle tube of correspondence each through spline structure, often organize described axial limiting part and all include stop nut and locking gasket, described stop nut and described locking gasket are all set in outside the described axle tube of correspondence and described stop nut connects with corresponding described half-axis sleeve screw thread corresponding described ring gear support and corresponding described hub assembly to be pressed between described locking gasket and corresponding described brake drum。

14. the axle case assy for integrated electric drive axle according to claim 1, it is characterized in that, also include differential-speed lock mechanism, described differential-speed lock mechanism is arranged on described axle housing assembly, and is arranged to optionally differential casing locking by two described semiaxis with the differential mechanism of described integrated electric drive axle。

15. the axle case assy for integrated electric drive axle according to claim 14, it is characterised in that described differential-speed lock mechanism includes:

Driving cylinder, one end of described driving cylinder is fixed on described axle housing assembly；

Transmission component；

Sliding sleeve, described sliding sleeve is set in outside described semiaxis and can with described semiaxis synchronous axial system, described driving cylinder drives described sliding sleeve by described transmission component so that described sliding sleeve along described semiaxis the axial unlocked position unlocked at described differential casing and and the lock position of described differential casing locking between move。

16. the axle case assy for integrated electric drive axle according to claim 15, it is characterised in that described transmission component includes:

Connecting rod, one end of described connecting rod is connected rotationally with described driving cylinder；

The other end of shifting fork bar, described shifting fork bar and described connecting rod is fixedly linked, and described shifting fork bar is rotatably supported on described axle housing assembly；

Shift fork, described shift fork is set on described shifting fork bar by spline structure, and wherein said sliding sleeve is provided with chute, and described shift fork is positioned at described chute。

17. the axle case assy for integrated electric drive axle according to claim 16, it is characterised in that described differential-speed lock mechanism also includes differential lock sensor assembly, and described differential lock sensor assembly includes:

Sensor, described sensor is located on described axle housing assembly；

Mobile bar, described mobile bar is movably arranged on described axle housing assembly；

Fixture, described fixture is fixed on described shift fork, and is arranged in the swing of described shift fork so that when described sliding sleeve moves to described lock position, driving described motion lever stop to support described sensor so that described sensor sends locking signal。

18. the axle case assy for integrated electric drive axle according to claim 12, it is characterised in that also include: abs sensor assembly, described abs sensor assembly is threaded connection part and is fixed on described brake mounting board。

19. an integrated electric drive axle, it is characterised in that including:

Electric power assembly, described electric power assembly includes power motor, variator, differential mechanism, and described variator has case of transmission, and described power motor is fixed on described case of transmission, and described differential mount is on described case of transmission；

The axle case assy for integrated electric drive axle according to any one of claim 1-18, said two semiaxis and described differential mechanism are respectively positioned in described axle housing assembly, and described case of transmission is fixed on described axle housing assembly。

20. a vehicle, it is characterised in that include integrated electric drive axle according to claim 19。