CN105966237B - Vehicle and drive axle assemblies for vehicle - Google Patents

Vehicle and drive axle assemblies for vehicle Download PDF

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Publication number
CN105966237B
CN105966237B CN201511028980.7A CN201511028980A CN105966237B CN 105966237 B CN105966237 B CN 105966237B CN 201511028980 A CN201511028980 A CN 201511028980A CN 105966237 B CN105966237 B CN 105966237B
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CN
China
Prior art keywords
axle
vehicle
distance rod
assembly
axle housing
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Application number
CN201511028980.7A
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Chinese (zh)
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CN105966237A (en
Inventor
刘辉跃
全初鹏
贺建
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201511028980.7A priority Critical patent/CN105966237B/en
Publication of CN105966237A publication Critical patent/CN105966237A/en
Priority to PCT/CN2016/112656 priority patent/WO2017114419A1/en
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Publication of CN105966237B publication Critical patent/CN105966237B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention discloses a kind of vehicle and for the drive axle assemblies of vehicle, the drive axle assemblies include driving axis, driving axis includes two axle assemblies of setting spaced apart along the longitudinal direction, each axle assembly includes axle case assy, axle case assy includes axle housing component and two semiaxis, and two semiaxis are located in axle housing component；At least one of two axle assemblies are electric drive axle assembly, electric drive axle assembly further includes electric power assembly, electric power assembly includes power motor, speed changer, differential mechanism, speed changer has case of transmission, power motor is fixed on case of transmission, differential mount is on case of transmission, and differential mechanism is located in axle housing component, and case of transmission is fixed on axle housing component；Suspension system, each axle assembly are connected by suspension system with the vehicle frame of vehicle.Drive axle assemblies according to the present invention, it is compact-sized, degree of integration is high and environmentally protective.

Description

Vehicle and drive axle assemblies for vehicle
Technical field
The present invention relates to technical field of vehicle manufacture, in particular to a kind of drive axle assemblies for vehicle and Vehicle with the drive axle assemblies.
Background technology
In the related technology, the transmission link of drive axle is more, is driven chain length, and transmission efficiency is low, and volume is big, difficult arrangement, and Not environmentally, noise is big, and air pollution is serious, and there are rooms for improvement.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention carries Go out that a kind of compact-sized, energy-saving ring, degree of integration be high and the environmentally protective drive axle assemblies for vehicle.
The present invention also provides a kind of vehicles.
The drive axle assemblies for vehicle according to a first aspect of the present invention include：Driving axis, the drive axle are total At two axle assemblies including being spaced apart setting along the longitudinal direction, each axle assembly includes axle case assy, described Axle case assy includes axle housing component and two semiaxis, and two semiaxis are located in the axle housing component；Two vehicle bridge are total At at least one of be electric drive axle assembly, the electric drive axle assembly further includes electric power assembly, the electric power assembly Including power motor, speed changer, differential mechanism, there is the speed changer case of transmission, the power motor to be fixed on the change On fast device shell, on the case of transmission, the differential mechanism is located in the axle housing component differential mount, described Case of transmission is fixed on the axle housing component；Suspension system, each axle assembly by the suspension system with The vehicle frame of the vehicle is connected；Suspension arrangement, the suspension arrangement are connected to the vehicle frame of the electric power assembly and the vehicle Between, the suspension arrangement is connected to the vehicle frame of one end and the vehicle far from the axle case assy of the case of transmission Between.
Drive axle assemblies according to the present invention for vehicle, by will be in two axle assemblies in driving axis It is at least one be set as compact-sized, transmission chain is short, transmission efficiency and the easy electric drive axle assembly of arrangement, to make vehicle Realize steady driving process, environmentally protective, zero emissions, zero pollution, low noise；It is by suspension system that vehicle frame and each vehicle bridge is total At connected so that vehicle is more comfortable.
Vehicle according to a second aspect of the present invention includes the drive axle group for vehicle described in first aspect, to have The advantages that driving process is steady, environmentally protective, zero emissions, zero pollution, low noise, high comfort.
Description of the drawings
Fig. 1 is the structural schematic diagram of the second axle assembly and vehicle frame according to the ... of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram at a visual angle of the second axle assembly according to the ... of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram at another visual angle of the second axle assembly according to the ... of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of electric drive axle assembly according to the ... of the embodiment of the present invention；
Fig. 5 is the sectional view of Fig. 4；
Fig. 6 is the enlarged drawing at the E of Fig. 5；
Fig. 7 is the sectional view of electric power assembly；
Fig. 8 is the structural schematic diagram of axle case assy according to the ... of the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of electric power assembly according to the ... of the embodiment of the present invention；
Figure 10 is the internal structure schematic diagram of speed changer according to the ... of the embodiment of the present invention；
Figure 11 is the structural schematic diagram of differential-speed lock mechanism according to the ... of the embodiment of the present invention；
Figure 12 is the drive mechanism schematic diagram of vehicle according to the ... of the embodiment of the present invention；
Figure 13 is the structural schematic diagram of vehicle according to the ... of the embodiment of the present invention.
Reference numeral：
Vehicle 100000, the drive axle assemblies 10000 for vehicle, driving axis (the second axle assembly) 1000, electricity drive Dynamic axle assembly 100, electric power assembly 101, power motor 11, motor output shaft VI, active cooling structure 111, coolant liquid driving Part 1111, coolant circulation passage 1112, entrance A, outlet B, speed changer 12, case of transmission 121, input shaft I, jackshaft II, output shaft III, input gear q, intermediate gear q ', one gear driving gear 1, one keep off driven gear 1 ', two gear driving gear 2, Two gear driven gears 2 ', output gear z, synchronizer S, differential mechanism 13, differential mechanism driven gear z ', electro-hydraulic shift execution module 15, axle case assy 102, hub reduction gear 20, hub reduction gear shell 201, sun gear 202, planetary gear 203, ring gear 204, Internal tooth coil support 205, baffle ring 206, axle housing component 21, axle housing 210, shell cover 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 Component 26, axial limiting part 27, stop nut 271, locking gasket 272, differential-speed lock mechanism 28, driving cylinder 281, piston 2811, cylinder block 2812, transmission component 282, connecting rod 2821, flange 28211, yoke bar 2822, shift fork 2823, spring 2824, sliding sleeve 283, the first axle assembly 300, vehicle frame 400, suspension system 500, elastic component 50, balance shaft assembly 51, U-bolts 52, the first distance rod 53, the second distance rod 54, the first distance rod vehicle frame mounting base 551, the first distance rod axle housing mounting base 552, Second distance rod balance shaft mounting base 553, the second distance rod axle housing mounting base 554, elastic component mounting base 555, bolt 401, spiral shell Bolt 402, bolt 403, bolt 405, bolt 406.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Vehicle 100000 according to the ... of the embodiment of the present invention is described referring to Fig. 1-Figure 13.As shown in Fig. 1-Figure 13, according to The vehicle 100000 of the embodiment of the present invention includes vehicle frame 400, the first axle assembly 300 and the drive axle assemblies 10000 for vehicle, The drive axle assemblies 10000 for being wherein used for vehicle include drive axle 1000 and suspension system 500.Wherein driving axis 1000 is Second axle assembly 1000.
First axle assembly 300 and the second axle assembly 1000 are spaced apart setting along the front-rear direction of vehicle 100000, such as scheme Shown in 13, the first axle assembly 300 is the front truck axle assembly of vehicle 100000, and the second axle assembly 1000 is the rear car of vehicle 100000 Axle assembly.
Wherein, as shown in figure 13, the second axle assembly 1000, i.e. driving axis 1000 include before and after vehicle 100000 Direction is spaced apart two axle assemblies of setting.As shown in Figures 2 and 3, each axle assembly includes axle case assy 102, bridge Housing assy 102 includes axle housing component 21 and two semiaxis 22, and two semiaxis 22 are located in axle housing component 21.
At least one of two axle assemblies are electric drive axle assembly 100, i.e. can be one in two axle assemblies For electric drive axle assembly 100, another is driven bridge；Or two axle assemblies are electric drive axle assembly 100.
In two axle assemblies are all the embodiment of electric drive axle assembly 100, each axle assembly can drive vehicle 100000 travelings adapt to level road and climbing, comprehensive economy to which the second axle assembly 1000 is drive axle and powerful It is good.
Preferably, it is that another electric drive axle is total that two electric drive axle assemblies 100, which are arranged to an electric drive axle assembly 100, It is formed after rotating 180 ° perpendicular to axis in the front-back direction at 100.That is, an electric drive axle assembly 100 is rear-guard Dynamic bridge, another electric drive axle assembly 100 is middle drive axle, and another electric drive axle assembly 100 is an electric drive axle Assembly 100 is formed after rotating 180 ° perpendicular to axis in the front-back direction.The more compact structure of second axle assembly 1000 as a result, Convenient for arrangement, space availability ratio is high and load is evenly distributed.
Preferably, two electric drive axle assemblies 100 can be just the same, and drive axle middle in this way and rear driving axle can be total to With to which cost is manufactured in reduction.Certainly, in some other embodiments of the present invention, two electric drive axle assemblies 100 There can be nuance.
Further, in two axle assemblies are all the embodiment of electric drive axle assembly 100, vehicle 100000 can be with Including two electric machine controllers, two electric machine controllers and two electric drive axle assemblies 100 correspond, and each motor control Device individually controls the power motor 11 of corresponding electric drive axle assembly 100.Two electric drive axle assemblies 100 work independently as a result, It is non-interference, it is controlled respectively by two electric machine controllers, by being precisely controlled the rotating speed of unit motivation of adjustment motor 11, from And realize real-time synchronization.Further, since two electric drive axle assemblies 100 can work independently, even if there are one electric drive axle is total It cannot work at 100, another electric drive axle assembly 100 can also drive vehicle to run, and there are two independent power sources for tool, i.e., Two independent power motors 11 so that vehicle power is more powerful.
One in two axle assemblies is electric drive axle assembly 100, another in two axle assemblies is driven In the embodiment of bridge, electric drive axle assembly 100 drives driven bridge, realizes that the traveling of vehicle 100000, simple in structure and arrangement are held Easily.
As shown in Fig. 4-Figure 12, electric drive axle assembly 100 includes electric power assembly 101 and axle case assy 102.Electric power is total Include power motor 11, speed changer 12 and differential mechanism 13 at 101.As shown in Fig. 5, Fig. 6 and Fig. 8, axle case assy 102 includes axle housing Component 21 and two semiaxis 22.Two semiaxis 22 and differential mechanism 13 are respectively positioned in axle housing component 21.
It is understood that the power that power motor 11 exports passes to differential mechanism by the change velocity modulation torsion of speed changer 12 13, two output ends of differential mechanism 13 output power to two semiaxis 22, and semiaxis 22 imparts power to coupled vehicle Wheel, to drive vehicle 100000 to travel.
As shown in Figure 4 and Figure 5, in the electric drive axle assembly 100 of the embodiment of the present invention, speed changer 12 has case of transmission 121, power motor 11 is fixed on case of transmission 121, and differential mechanism 13 is supported on case of transmission 121, case of transmission 121 are fixed on axle housing component 21.For example, in some embodiments of the invention, power motor 11 can be connected through a screw thread Part is fixed on case of transmission 121, and case of transmission 121 can be connected through a screw thread part and be fixed on axle housing component 21, poor Fast device 13 is supported on by bearing on case of transmission 121.
That is, in electric drive axle assembly 100, case of transmission 121 can as the installation carrier of power motor 11, And the connecting component that case of transmission 121 is electric power assembly 101 and axle case assy 102, thus by power motor 11, speed changer 12, differential mechanism 13 and axle case assy 102 integrate.
Electric drive axle assembly 100 according to the ... of the embodiment of the present invention, by by power motor 11, speed changer 12, differential mechanism 13 And axle case assy 102 integrates, to compact-sized, assembly is simple, alleviate quality, is small, occupying little space, Convenient for being arranged on vehicle 100000, and shorten that driving chain, transmission loss be small, transmission efficiency.
Further, electric drive axle assembly 100 can also include suspension arrangement, and suspension arrangement is connected to electric power assembly Between 101 and vehicle frame 400.That is, electric power assembly 101 is not to be carried completely by axle case assy 102, electric power assembly 101 are also connected by suspension arrangement with vehicle frame 400, in this way can 101 centroid motion of active balance electric power assembly and it is total to axle housing The torque generated at 102.By the way that suspension arrangement is arranged, impact can be effectively reduced, it is total with axle housing to reach electric power assembly 101 as possible It is synchronized at 102 bounces, the torque between electric power assembly 101 and axle case assy 102 is almost dropped to zero, guarantee connects between the two Reliability is connect, ensures power transmission stability, ensures the safety in utilization of entire electric drive axle assembly 100.
The arrangement of this electric drive axle assembly 100, more conducively 101 volume of electric power assembly be big, 11 work(of power motor The big vehicle 100000 of rate, to meet the traveling demand of the vehicle 100000 of heavy-load type well.
Suspension arrangement can be connected between one end and vehicle frame 400 of the separate axle case assy 102 of case of transmission 121, The torque generated to axle case assy 102 to more conducively 101 centroid motion of balance electric power assembly, makes electric power assembly 101 It is more stable with the installation of axle case assy 102.
Optionally, suspension arrangement may include two dampers, and two dampers can be symmetricly set on case of transmission 121 left and right sides.The stress of electric power assembly 101 is more balanced as a result,.Vehicle frame 400 may include crossbeam, one end of damper On crossbeam, the other end of damper is mounted on case of transmission 121.
Electric drive axle assembly 100 according to the ... of the embodiment of the present invention, by being set between electric power assembly 101 and vehicle frame 400 Suspension arrangement is set, impact can be effectively reduced, it is synchronous with the bounce of axle case assy 102 to reach electric power assembly 101 as possible, electric power Torque between assembly 101 and axle case assy 102 almost drops to zero, ensures connection reliability between the two, ensures power transmission Stability keeps the use of entire electric drive axle assembly 100 more reliable, safer.
Each axle assembly is connected by suspension system 500 with vehicle frame 400.That is, suspension system 500 is vehicle frame 400 with the connecting component of each axle assembly so that influence of the vibration of the drive system of vehicle 100000 to vehicle is big It is big to reduce, draw high the comfort of vehicle.
According to the drive axle assemblies 10000 for vehicle of inventive embodiments, by by two in driving axis 1000 At least one of a axle assembly is set as compact-sized, transmission chain is short, transmission efficiency and the easy electric drive axle of arrangement Assembly 100, to make vehicle 100000 realize steady driving process, environmentally protective, zero emissions, zero pollution, low noise；By outstanding Vehicle frame 400 is connected by frame system 500 with each axle assembly so that vehicle 100000 is more comfortable.
Vehicle 100000 according to the ... of the embodiment of the present invention, using above-mentioned drive axle assemblies 10000, to have driving process Steadily, the advantages that environmentally protective, zero emissions, zero pollution, low noise, high comfort.
The drive axle assemblies 10000 according to the ... of the embodiment of the present invention for vehicle are described in detail referring to Fig. 1-Figure 13. As shown in figure 13, the drive axle assemblies 10000 for being used for vehicle include vehicle frame 400, the first axle assembly 300, the second axle assembly 1000 With suspension system 500.
First axle assembly 300 and the second axle assembly 1000 are spaced apart setting, the second bridge along the front-rear direction of vehicle 100000 Assembly 1000 includes two axle assemblies, and at least one of two axle assemblies are electric drive axle assembly 100, and each vehicle bridge is total Cheng Jun is connected by suspension system 500 with vehicle frame 400.
Suspension system 500 according to the ... of the embodiment of the present invention is described in detail referring to Fig. 1-Fig. 3.As shown in Figure 1-Figure 3, it hangs Frame system 500 includes two elastic components 50 for being spaced apart setting in left-right direction, balance shaft assembly 51 and is spaced along the vertical direction Open up the first distance rod group and the second distance rod group set.
Two elastic components 50 are spaced apart setting in left-right direction, and a left side for being located at vehicle 100000, one is located at vehicle 100000 right side.The both ends (i.e. front-end and back-end) of each elastic component 50 are connected with two axle housing components 21 respectively, and every A elastic component 50 is respectively positioned on the top of two axle housing components 21.Optionally, elastic component 50 includes at least one layer of leaf spring, it is preferable that Elastic component 50 is multilayer leaf spring, and multilayer leaf spring is stacked from top to bottom.
In other words, the left end phase of the front end of the elastic component 50 in left side and the axle housing component 21 of the axle assembly positioned at front Even, the rear end of the elastic component 50 in left side is connected with the left end of the axle housing component 21 for the axle assembly being located behind, the elasticity in left side Part 50 is located at the top of two axle housing components 21；The axle housing group of the front end of the elastic component 50 on right side and the axle assembly positioned at front The right end of part 21 is connected, the right end phase of the rear end of the elastic component 50 on right side and the axle housing component 21 for the axle assembly being located behind Even, the elastic component 50 on right side is located at the top of two axle housing components 21.
That is, the drive axle assemblies 10000 according to the present invention for vehicle, since axle housing component 21 is entirely placed in Elastic component 50 is hereinafter, i.e. axle case assy 102 and electric power assembly 101 are respectively positioned below elastic component 50 (leaf spring) so that electric power Influence of the vibration of assembly 101 to vehicle greatly reduces, and draws high the comfort of vehicle, and driving process is steady, environmentally protective, zero-emission It puts, no pollution, low noise.
Balance shaft assembly 51 is fixed on vehicle frame 400, and balance shaft assembly 51 is total positioned at two vehicle bridge in the longitudinal direction Between, i.e., two axle assemblies are located at the both sides of balance shaft assembly 51, and the middle part of each elastic component 50 is each attached to On balance shaft assembly 51, that is to say, that balance shaft assembly 51 can be as the connecting component of elastic component 50 and vehicle frame 400, left side The middle part of elastic component 50 be fixed on the left end of balance shaft assembly 51, the middle part of the elastic component 50 on right side is fixed on balance shaft assembly 51 right end.Thus the fixation of elastic component 50 is more secured, i.e. the both ends of each elastic component 50 are separately fixed at two axle housing components On the end of 21 the same side, and the middle part of each elastic component 50 is fixed in the respective end of balance shaft assembly 51.
By taking elastic component 50 includes at least one layer of leaf spring as an example, the middle part of elastic component 50 is fixed on balance by U-bolts 52 On axle assembly 51, i.e., at least one layer of leaf spring is fixed on corresponding one end of balance shaft assembly 51 by U-bolts 52.
Optionally, each elastic component 50 is fixed on the phase of balance shaft by the U-bolts 52 that two front-rear directions are spaced apart It should hold.
As shown in Figure 1-Figure 3, the first distance rod group includes symmetrically arranged two the first subgroups in the longitudinal direction, two First subgroup is corresponded with two axle housing components 21, i.e., each first subgroup includes multiple first distance rods 53, Mei Ge One distance rod 53 is both connected between vehicle frame 400 and corresponding axle housing component 21.
Second distance rod group includes symmetrically arranged two the second subgroups in the longitudinal direction, two the second subgroups with two Axle housing component 21 corresponds, and each second subgroup includes multiple second distance rods 54, and each second distance rod 54 is all connected with Between balance shaft assembly 51 and corresponding axle housing component 21.
In other words, any one first distance rod 53 in the first distance rod group is both connected to vehicle frame 400 and corresponding bridge Between shell component 21, any one second distance rod 54 in the second distance rod group be both connected to balance shaft assembly 51 with it is corresponding Between axle housing component 21, pass through above-mentioned two distance rod group and balance shaft assembly 51 and the connection with vehicle frame 400 so that two The position of axle assembly relative frame 400 is fixed, and when the second axle assembly 1000 generates power, vehicle body is pushed advance.
In the embodiment specifically of the present invention, the first distance rod group is located at the top of the second distance rod group, often One end of a first distance rod 53 is connected with the middle part of corresponding axle housing component 21, such as one end of each first distance rod 53 is equal It is connected with the middle part of corresponding axle housing component 21 by the first distance rod axle housing mounting base 552, the first distance rod axle housing mounting base 552 are fixed on the middle part of axle housing component 21, and the first distance rod axle housing mounting base 552 is located at the top of axle housing component 21.
The other end of each first distance rod 53 is connected by the first distance rod vehicle frame mounting base 551 with vehicle frame 400, and first Distance rod vehicle frame mounting base 551 is fixed on vehicle frame 400, and the first distance rod vehicle frame mounting base 551 is located at two axle housing components 21 centre.
In other words, each first distance rod 53 corresponds to a first distance rod axle housing mounting base 552 and one first respectively Distance rod vehicle frame mounting base 551, the front end for being located at the first distance rod 53 in first subgroup in front pass through the first distance rod bridge Shell mounting base 552 is connected with the middle part of the axle housing component 21 in front, is located at the first distance rod 53 in first subgroup in front Rear end is connected by the first distance rod vehicle frame mounting base 551 with vehicle frame 400；The first distance rod in the first subgroup being located behind 53 rear end is connected by the first distance rod axle housing mounting base 552 with the middle part of the axle housing component 21 at rear, be located behind The front end of the first distance rod 53 in one subgroup is connected by the first distance rod vehicle frame mounting base 551 with vehicle frame 400.
Preferably, one end of each first distance rod 53 is respectively positioned on the inside of the other end of same first distance rod 53, That is each first distance rod 53 is obliquely installed, and the first distance rod 53 in first subgroup in front is from forward direction After extend outwardly, the first distance rod 53 in the first subgroup being located behind extends internally from front to back.
Preferably, the first distance rod vehicle frame mounting base 551 is fixed on the inside of vehicle frame 400, thus the knot of suspension system 500 Structure is more compact, and connects and assemble and is more convenient.It is understood that vehicle frame 400 may include setting spaced apart in left-right direction Two longerons, the first distance rod vehicle frame mounting base 551 in left side is located at the side rail inner in left side, the first distance rod vehicle on right side Frame mounting base 551 is located at the side rail inner on right side.
In some specific examples of the present invention, each first subgroup includes two the first distance rods 53, two the One end of one distance rod 53 is integrally formed, and the first distance rod axle housing mounting base 552 corresponding with the first subgroup is one, and two Integrally formed one end of first distance rod 53 is connected with the first distance rod axle housing mounting base 552 simultaneously；It is corresponding with the first subgroup The first distance rod vehicle frame mounting base 551 be two, the other end and two the first distance rod vehicle frames of two the first distance rods 53 Mounting base 551 corresponds.
In other words, two the first distance rods 53 of each first subgroup constitute a V-arrangement distance rod, i.e. the first distance rod group Including two V-arrangement distance rods, one end (i.e. the intersection points of the two side walls of V-arrangement) and the first distance rod axle housing of the V-arrangement distance rod are pacified It fills seat 552 to be connected, the other end of V-arrangement distance rod includes two ends, and one of end passes through a first distance rod vehicle frame Mounting base 551 is connected with the left part (longeron in left side) of vehicle frame 400, another end passes through another the first distance rod vehicle Frame mounting base 551 is connected with the right part (longeron on right side) of vehicle frame 400.
Preferably, a first distance rod vehicle frame mounting base being connected with the left side end of the V-arrangement distance rod positioned at front side 551 and a first distance rod vehicle frame mounting base 551 being connected with the left side end of the V-arrangement distance rod positioned at rear side can be integrated Formed, a first distance rod vehicle frame mounting base 551 being connected with the right side end of the V-arrangement distance rod positioned at front side and with positioned at A connected first distance rod vehicle frame mounting base 551 of the right side end of the V-arrangement distance rod of rear side may be integrally formed.Such one Two the first distance rod vehicle frame mounting bases 551 that body is formed, structural strength is high, simpler with the assembly of vehicle frame 400.Optionally, The first distance rod vehicle frame mounting base 551 after this is integrated can be connected through a screw thread part and be fixed on vehicle frame 400.
In the embodiment specifically of the present invention, the first distance rod group is located at the top of the second distance rod group, often One end of a second distance rod 54 is connected with the end of corresponding axle housing component 21, such as one end of each second distance rod 54 is equal It is connected with the end of corresponding axle housing component 21 by the second distance rod axle housing mounting base 554, the second distance rod axle housing mounting base 554 are fixed on the end of axle housing component 21, and the second distance rod axle housing mounting base 554 is located under corresponding axle housing component 21 Side.
The other end of each second distance rod 54 passes through the second distance rod balance shaft mounting base 553 and 51 phase of balance shaft assembly Even, the second distance rod balance shaft mounting base 553 is fixed on the end of balance shaft assembly 51, corresponding with same second distance rod 54 The end of axle housing component 21 and the end of balance shaft assembly 51 be located at the same side of driving axis 1000.
In other words, each second distance rod 54 corresponds to a second distance rod axle housing mounting base 554 and one second respectively Distance rod balance shaft mounting base 553, the front end for being located at second distance rod 54 in the left side in second subgroup in front pass through second Distance rod axle housing mounting base 554 is connected with the left part of the axle housing component 21 in front, is located at the right side in second subgroup in front The second distance rod 54 the front end right part phase that passes through the second distance rod axle housing mounting base 554 and the axle housing component 21 in front Even；The rear end of second distance rod 54 in the left side in second subgroup in front passes through the second distance rod balance shaft mounting base 553 are connected with the left end of balance shaft assembly 51, after being located at second distance rod 54 on the right side in second subgroup in front End is connected by the second distance rod balance shaft mounting base 553 with the right-hand end of balance shaft assembly 51.
It is installed by the second distance rod axle housing the rear end of second distance rod 54 in the left side in the second subgroup being located behind Seat 554 is connected with the left part of the axle housing component 21 at rear, second distance rod 54 on the right side in the second subgroup being located behind Rear end be connected with the right part of the axle housing component 21 at rear by the second distance rod axle housing mounting base 554；Be located behind The front end of second distance rod 54 in the left side in two subgroups passes through the second distance rod balance shaft mounting base 553 and balance shaft assembly 51 Left end be connected, the front end of second distance rod 54 on the right side in the second subgroup being located behind is flat by the second distance rod Weighing apparatus axis mounting base 553 is connected with the right-hand end of balance shaft assembly 51.
Preferably, one end of each second distance rod 54 is respectively positioned on the inside of the other end of same second distance rod 54, That is each second distance rod 54 is obliquely installed, and the second distance rod 54 in second subgroup in front is from forward direction After extend internally, the second distance rod 54 in the second subgroup being located behind extends outwardly from front to back.
In some specific examples of the present invention, each second subgroup includes two the second distance rods 54, with second The corresponding second distance rod axle housing mounting base 554 of subgroup is two.Further, as shown in figure 3, bridge corresponding with the second subgroup The both ends of shell component 21 are respectively fixed with two elastic component mounting bases 555 for being spaced apart setting in the lateral direction, two elasticity Part mounting base 555 and two the second distance rod axle housing mounting bases 554 correspond, each second distance rod axle housing mounting base 554 It is each attached to the lower section of corresponding elastic component mounting base 555, each second distance rod balance shaft mounting base 553 is each attached to balance The lower section of axle assembly 51.
In other words, the left end of axle housing component corresponding with the second subgroup 21 fixes an elastic component mounting base 555, corresponding Second distance rod axle housing mounting base 554 of left end is fixed on the lower section of the elastic component mounting base 555 of left end, corresponding with the second subgroup Balance shaft assembly 51 left end below fix a second distance rod balance shaft mounting base 553；It is corresponding with the second subgroup The right end of axle housing component 21 fixes an elastic component mounting base 555, and the second distance rod axle housing mounting base 554 of corresponding right end is solid It is scheduled on the lower section of the elastic component mounting base 555 of right end, the lower section of the right end of balance shaft assembly corresponding with the second subgroup 51 is fixed One the second distance rod balance shaft mounting base 553.In this way, the second distance rod group is disposed entirely under the first distance rod group Side so that the top of axle assembly is fixed with vehicle frame 400 with lower section, so as to so that vehicle frame 400 and axle assembly position It is relatively fixed, and stress more balances, load is more evenly distributed, and optimizes the arrangement of vehicle 100000.
Preferably, it is hinged to all have ball for the both ends of each first distance rod 53 and the both ends of each second distance rod 54 Structure, the junction and the second distance rod 54 with vehicle frame 400 and axle assembly and balance shaft assembly to the first distance rod 53 51 and axle assembly junction, all have certain flexibility, good damping result is easy to connect.
Preferably, in some embodiments as shown in FIG. 1 to FIG. 3, two axle assemblies are electric drive axle assembly 100, And an electric drive axle assembly 100 is to be formed after another electric drive axle assembly 100 rotates 180 degree, to which middle drive axle is with after Drive axle can share, and only need to develop an axle assembly, and the two V-arrangement distance rods and the second thrust of the first distance rod group Four second distance rods 54 of bar group, each only need to develop a kind of state, greatly reduce development cost.
In short, the drive axle assemblies 10000 according to the ... of the embodiment of the present invention for vehicle, electric drive axle assembly 100 will Power motor 11, speed changer 12 and axle case assy 102 are integrated in one, compact-sized and transmission efficiency, and for vehicle Second axle assembly 1000 of drive axle assemblies 10000 is all using electric drive mode, and capacity usage ratio is high, response speed block, and There is stronger power performance, the entire power section of vehicle 100000 in addition is all located under elastic component 50, i.e. the vibration of vehicle Source is placed under elastic component 50, and after the vibration damping of suspension system 500, vibration weakening, vehicle comfort greatly improves, and multiple portions Part (such as axle assembly, V-arrangement distance rod, second distance rod 54) can share, and development cost is low.Preferably, when two vehicle bridge When assembly is electric drive axle assembly 100, two electric drive axle assemblies 100 can work asynchronously, and can also work independently, even if There are one another electric drive axle assemblies 100 that cannot work of electric drive axle assembly 100 can also vehicle be driven to run, and two independent Power source so that vehicle power is more powerful.
Electric drive axle assembly 100 according to the ... of the embodiment of the present invention is described in detail referring to Fig. 5-Figure 13.Such as Fig. 5-Figure 13 Shown in electric drive axle assembly 100 include electric power assembly 101, axle case assy 102 and suspension arrangement.Optionally, electric power is total It can be fixed on axle case assy 102 by multiple bolts at 101, to be integrated into electric drive axle assembly 100.
As shown in Fig. 4, Fig. 5, Fig. 9-Figure 10, electric power assembly 101 includes power motor 11, speed changer 12 and differential mechanism 13, electro-hydraulic shift execution module 15, wherein speed changer 12 have case of transmission 121.
As shown in figure 5, power motor 11 can be fixed on by multiple bolts 402 on case of transmission 121, multiple bolts 402 being provided at circumferentially spaced around power motor 11.Power motor 11 can be permanent magnet synchronous motor.Power motor 11 passes through three-phase Line external power supply realizes that power motor 11 drives.
As shown in figure 9, power motor 11 includes active cooling structure 111.Active cooling structure 111 is for actively to power Motor 11 is cooled down.In some optional embodiments, active cooling structure 111 includes the cooling cooled down for power motor 11 Liquid circulation canal 1112 cools down power motor 11 by cycle of the coolant liquid in coolant circulation passage 1112.Such as Shown in Fig. 9, coolant circulation passage 1112 has entrance A and outlet B, and it is logical that coolant liquid can enter coolant liquid cycle from entrance A Road 1112, and after carrying out heat exchange with power motor 11, from outlet B outputs.
As a result, by making power motor 11 carry active cooling structure 111, it can prevent power motor 11 from overheating, indirectly Raising efficiency prevents power motor 11 from burning out, and can meet high-power, high rotating speed and prolonged operational requirements, preferably with The operating condition of vehicle 100000 matches, and can be used for light-duty to heavy complete set vehicle.
Preferably, active cooling structure 111 can also include coolant liquid actuator 1111, and coolant liquid actuator 1111 is located at To drive coolant liquid flowing in coolant circulation passage 1112 in coolant circulation passage 1112.Optionally, coolant liquid drives Part 1111 can be cooling oil pump.Active cooling structure 111 carries coolant liquid actuator 1111 as a result, and degree of integration is high, and fills With simple.
Certainly the present invention some optional embodiments in, coolant circulation passage 1112 can also with positioned at electric drive The coolant liquid of the outside of axle assembly 100 connects, that is to say, that coolant liquid can be introduced from outside into, i.e. active cooling structure 111 Coolant circulation passage 1112 can share coolant liquid actuator with the coolant liquid circulation path of other components on vehicle 100000 1111。
Case of transmission 121 can be fixed on by bolt 401 on the axle housing component 21 of axle case assy 102.Axle housing component 21 include axle housing 210 and shell cover 213.The middle part of axle housing 210 has the open differential mechanism accommodation space of both sides of the face, shell cover 213 are removably mounted on axle housing 210 to close an open side end face at the middle part of axle housing 210, and case of transmission 121 is solid It is scheduled on open another side end face at the middle part of axle housing 210.
Optionally, shell cover 213 can be connected through a screw thread part and be removably mounted on axle housing 210, specifically, such as Fig. 4 Shown in Fig. 5, threaded connector is bolt 403, and shell cover 213 can be by along the circumferentially spaced multiple spiral shells of the shell cover 213 Bolt 403 is threaded on an open side end face at the middle part of axle housing 210.In this way, by the way that shell cover 213 is removably installed On axle housing 210, the installation of electric power assembly 101 can be made more convenient, and fixed structure is simple, it is easy to operate.Specifically, bridge The shell cover 213 of one side end face (taking turns the side end face at packet) at the middle part of shell 210 makes assembled, can efficiently reduce electronic The assembly difficulty of power assembly 101 and two semiaxis 22 is more advantageous to the repair of differential mechanism 13.
Preferably, electric drive axle assembly 100 further includes multiple bolts 401, and case of transmission 121 is equipped with multiple screw threads Hole, axle housing 210, which is equipped with, to be corresponded with multiple threaded holes multiple vias correspondingly, multiple bolts 401 with multiple vias, Each bolt 401 is fixed in corresponding threaded hole across corresponding via case of transmission 121 is fixed on axle housing 210 On open another side end face at middle part.
That is, electric drive axle assembly 100 according to the ... of the embodiment of the present invention, threaded hole is arranged in case of transmission 121 On, and via is arranged on axle housing 210, is ensureing bonding strength in this way, it is also possible that 12 volume of speed changer is as possible Small, structure is more compact.
Further, as shown in figure 5, the both ends (i.e. left end and right end) of axle housing component 21 can be respectively welded and be fixed with two A axle tube 23.
Axle case assy 102 can also include two brakes 25 and two of hub assembly 24, two of hub reduction gear 20, two A brake mounting board 214, each hub assembly 24 are installed in rotation on accordingly axle tube 23, two half-axile sleeves Pipe 23 is set in correspondingly outside two semiaxis 22, and two hub reduction gears 20 and two hub assemblies 24 correspond, often The input terminal of a hub reduction gear 20 is connected with corresponding semiaxis 22, the output end of each hub reduction gear 20 and corresponding wheel hub Assembly 24 is connected.
In some specific embodiments of the present invention, as shown in figure 5, hub reduction gear 20 is planetary reducer. Planetary reducer includes sun gear 202, planetary gear 203 and ring gear 204, and sun gear 202 is fixed on semiaxis 22, with Semiaxis 22 rotates synchronously, and planetary gear 203 is engaged with sun gear 202 and ring gear 204 respectively, and ring gear 204 passes through ring gear branch Frame 205 is fixed on corresponding axle tube 23.Small as a result, transmission efficiency, reduction range is wide.
Optionally, as shown in figure 5, hub reduction gear 20 includes hub reduction gear shell 201, hub reduction gear shell 201 It can be fixed on hub assembly 24, thus further decrease the volume of axle case assy 102, and compact-sized, save space.
Further, internal tooth coil support 205 is engaged with ring gear 204, and planetary reducer can also include baffle ring 206, at least part of internal tooth coil support 205 is folded in the axial direction between baffle ring 206 and ring gear 204, to internal tooth Circle 204 carries out axial limiting, preferably ensure that the assembly precision of hub reduction gear 20 and hub assembly 24.
Two brakes 25 and two hub assemblies 24 correspond, i.e., a brake 25 corresponds to a hub assembly 24 To be braked to the hub assembly 24.Two brake mounting boards 214 are respectively welded on the both ends for being fixed on axle housing component 21, Two brakes 25 are connected through a screw thread part and are fixed on correspondingly on two brake mounting boards 214, and two brakes 25 brake drum 251 is fixed on correspondingly on two hub assemblies 24.
Axle case assy 102 can also include two groups of axial limiting parts 27, two groups of axial limiting parts 27 and two hub assemblies 24 correspond, i.e., one group of axial limiting part 27 corresponds to a hub assembly 24 to carry out axial limiting to the hub assembly 24. Each internal tooth coil support 205 is set in by spline structure outside corresponding axle tube 23, and every group of axial limiting part 27 is wrapped Include stop nut 271 and locking gasket 272.Stop nut 271 and locking gasket 272 are set in corresponding axle tube 23 Outside, and stop nut 271 and corresponding axle tube 23 are threadedly coupled with by corresponding ring gear 204 and corresponding hub assembly 24 are pressed between locking gasket 272 and the brake drum 251 of corresponding brake 25.
It is understood that two axle tube 23, two of hub assembly 24, two of hub reduction gear 20, two brakings 214, two groups of brake mounting board, 27, two semiaxis 22 of axial limiting part of device 25, two correspond, and in the width of vehicle On direction, respectively symmetrically it is located at the left and right ends of axle housing component 21.
Below by taking right end as an example, describe the hub reduction gear 20 at the end, hub assembly 24, axle tube 23, brake 25, Brake mounting board 214, the connection relation of axial limiting part 27 and position relationship：
Specifically, as shown in fig. 6, the right end of axle housing component 21 is welded, there are one axle tube 23, the hub assemblies of right end 24 are installed in rotation on the axle tube 23 of right end, and the axle tube 23 of right end is set in outside the semiaxis 22 on right side.Wheel hub Assembly 24 is a part for wheel, and the rotation of wheel may be implemented in the rotation of hub assembly 24.More specifically, as shown in fig. 6, The right end of the semiaxis 22 of right end passes through the axle tube 23 of right end, and is connected through a screw thread part (bolt 406 in such as Fig. 6) and the right side The hub reduction gear 20 (for example, hub reduction gear shell 201) at end tightens together, and the left end of the semiaxis 22 of right end passes through spline It is connect with differential mechanism 13, the power that differential mechanism 13 exports is passed to the input of the hub reduction gear 20 of right end by the semiaxis 22 of right end End, by the deceleration of the hub reduction gear 20 of right end, the right side is passed to by power via the output end of the hub reduction gear 20 of right end Then the hub assembly 24 at end drives vehicle wheel rotation.
The brake 25 of right end corresponding with the hub assembly 24 of right end is mounted on the brake mounting board 214 of right end, The brake mounting board 214 of right end is fixed on the right end of axle housing component 21, and the brake drum 251 of the brake 25 of right end is also fixed To be rotated together with hub assembly 24 on the hub assembly 24 of right end, such as brake mounting board 214 can be arranged and weld It is fixed on the axle housing 210 of axle housing component 21, the brake 25 of right end is connected through a screw thread the brake peace that part is fixed on right end In loading board 214, and the brake drum 251 of the brake 25 of right end can be fixed on by bolt 405 on the hub assembly 24 of right end, Wherein threaded connector and bolt 405 is multiple.Wherein in the axial direction, i.e., on the left and right directions of vehicle, the braking of corresponding end Device 25 is located between the brake mounting board 214 of corresponding end and the hub assembly 24 of corresponding end.
Axial limiting part 27 corresponding with the hub assembly 24 of right end is right end group, then 271 He of stop nut of right end group The locking gasket 272 of right end group is set in outside the axle tube 23 of right end, and the stop nut 271 of right end group and the half of right end Pipe spreader 23 is threadedly coupled so that the hub assembly 24 of the internal tooth coil support 205 of right end and right end to be pressed on to the locking pad of right end group Between the brake drum 251 of the brake 25 of piece 272 and right end.Thus hub assembly 24 can pass through stop nut 271 and system The cooperation of the brake drum 251 of dynamic device 25 carries out axial locking, similarly, hub reduction gear 20 can also by stop nut 271 with And the cooperation of the brake drum 251 of brake 25 carries out axial locking.Specifically, the system of hub reduction gear shell 201, brake 25 Move drum 251, a part for hub assembly 24 is fixed together by bolt 405.
Locking gasket 272 can prevent stop nut 271 from loosening.Specifically, each hub assembly 24 passes through hub spindle It holds 241 to be rotatably sleeved on corresponding axle tube 23, axial limiting part 27 can adjust the clearance of hub bearing 241.
By above description, those skilled in the art can derive hub reduction gear 20, the hub assembly of left end 24, axle tube 23, brake 25, brake mounting board 214, the connection relation of axial limiting part 27 and position relationship, herein No longer narration in detail.
Preferably, axle case assy 102 can also include two abs sensor components 26, and two abs sensor components 26 can It is fixed on correspondingly on two brake mounting boards 214 with being connected through a screw thread part, i.e. the abs sensor component 26 of left end It is fixed on the brake mounting board 214 of left end, the abs sensor component 26 of right end is fixed on the brake mounting board of right end On 214.Optionally, threaded connector can be screw.
Specifically, it is formed when the transducer magnetic head of abs sensor component 26 and the induction gear ring 242 of hub assembly 24 rotate Induced voltage signal, signal are output to control system (such as ECU of vehicle), are embraced when control system control brake 25 is braked Extremely.
Preferably, as shown in figure 9, electric power assembly 101 can also include electro-hydraulic shift execution module 15, electro-hydraulic shift is held Row module 15 is for controlling speed changer 12, and electro-hydraulic shift execution module 15 is mounted on case of transmission 121.The electro-hydraulic shift Matching sensor and delicate flow valve are housed, external electronic control unit can pass through collection in execution module 15 Signal make a response, can be accurately controlled speed changer 12 shifting speed, gear switching time point, so that speed changer 12 is changed Gear smooth-going, fast response time, maneuverability are good, and can reduce driving fatigue.
Differential-speed lock mechanism 28 is mounted on axle housing component 21, and differential-speed lock mechanism 28 is arranged to two and half optionally One in axis 22 with the differential casing locking of the differential mechanism 13 of integrated electric drive axle.
The operation principle of differential-speed lock mechanism 28 is, when driving wheel-slip for one, differential casing and semiaxis 22 to be locked It is tight integral, so that differential mechanism 13 is lost differential action, it is right so as to which all torsion torque is transferred on the driving wheel of the other side In operating in, the engineering truck that muddy road easily skids is especially important.
As shown in figure 11, the differential-speed lock mechanism 28 includes driving cylinder 281, transmission component 282 and sliding sleeve 283.Driving One end of cylinder 281 is fixed on axle housing component 21, and sliding sleeve 283 is set in outside semiaxis 22 and can be rotated synchronously with semiaxis 22, institute State driving cylinder 281 and sliding sleeve 283 driven by transmission component 282 so that sliding sleeve 283 along semiaxis 22 it is axial with differential carrier The unlocked position and moved between the lock position of differential casing locking that body unlocks.It is sliding when sliding sleeve 283 is located at unlocked position Set 283 is unlocked with differential casing, and differential mechanism 13 normally realizes differential function, when sliding sleeve 283 is located at lock position, sliding sleeve at this time 283 are integrated with differential casing locking, and differential mechanism 13 loses differential function.
As shown in figure 11, transmission component 282 includes connecting rod 2821, yoke bar 2822, shift fork 2823 and spring 2824.Even Extension bar 2821 is fixed on axle housing component 21, and fork bar is movably set in outside connecting rod 2821, fork bar and driving cylinder 281 are connected with shift fork bar 2822 along the axial movement of connecting rod 2821, and optional understanding, driving cylinder 281 includes living Plug 2811 and cylinder block 2812, piston 2811 move in cylinder block 2812, one end and 2811 phase of piston of yoke bar 2822 Even, shift fork 2823 is fixed on to be moved together with yoke bar 2822 on yoke bar 2822, and wherein sliding sleeve 283 is equipped with sliding slot, is dialled Fork 2823 is located in sliding slot to stir the movement of sliding sleeve 283 under the drive of yoke bar 2822.Spring 2824 is located at connecting rod 2821 One end and fork bar between, specifically, one end of connecting rod 2821 is equipped with the flange 28211 extended radially outward, spring 2824 are set in outside connecting rod 2821, and spring 2824 is between flange 28211 and yoke bar 2822, and spring 2824 is arranged It is compressed at during sliding sleeve 283 is moved to lock position from unlocked position.The structure of transmission component 282 is simple as a result, and cloth It is easy to set.
By taking differential-speed lock mechanism shown in Figure 11 28 as an example, when driving the ventilation of cylinder 281 or dying, yoke bar 2822 is driving Take offence cylinder 281 drives edge connecting rod 2821 axial movement, and fork is driven to move, passes through matching for shift fork 2823 and sliding slot It closing, shift fork 2823 pushes sliding sleeve 283 along the axial movement of semiaxis 22, when sliding sleeve 283 is moved to lock position from unlocked position, Spring 2824 is compressed, to which sliding sleeve 283 can be restored to unlocked position under the action of spring 2824 from lock position again, to Tooth engagement or disconnection of the tooth of 283 teethed end faces of sliding sleeve of sliding sleeve 283 with 13 teethed end faces of differential mechanism on differential mechanism 13 are controlled, Final realization left and right two semiaxis 22 lock or differential.
Axle case assy 102 according to the ... of the embodiment of the present invention can make differential mechanism 13 according to vehicle by the way that differential-speed lock mechanism 28 is arranged Different driving cycles, realize 13 differential function of differential mechanism or release differential mechanism 13 differential function, especially suitable for severe The vehicle 100000 of operating mode operation, vehicle 100000 possesses strong impetus, and differential-speed lock mechanism 28 is integrated in axle housing component 21 On, it is compact-sized, it firmly installs, the operation is stable, reliability is high, and 100 reliability higher of electric drive axle assembly, function is made more to add It is kind.
One specific embodiment of speed changer 12 according to the present invention is described referring to Fig. 7, Fig. 9, Figure 10 and Figure 12.Become Fast device 12 may include input shaft I, jackshaft II and output shaft III.Input shaft I, jackshaft II and output shaft III pass through bearing It is supported on case of transmission 121.Specifically, as shown in Figure 10, input shaft I, jackshaft II and output shaft III are along vehicle 100000 width direction extends, the left and right directions of width direction, that is, vehicle 100000 of vehicle 100000.
Input shaft I is connected with the motor output shaft VI of power motor 11, such as shown in Figure 10 and Figure 12, input shaft I with it is dynamic Force motor output shaft VI can be connected by spline structure, and specifically, there is input shaft I internal spline, motor output shaft VI to have With the external splines of internal spline cooperation.Certain input shaft I can also be connected with power motor output shaft VI by shaft coupling.According to The electric power assembly 101 of the embodiment of the present invention, by by the input shaft I of the motor output shaft VI of power motor 11 and speed changer 12 It is connected directly, transmission chain is short, and simple in structure.
As shown in fig. 10 and fig. 12, input gear q is fixed on input shaft I, i.e. input gear q can be same with input shaft I Step rotates, and is fixed with intermediate gear q ' on jackshaft II, i.e. intermediate gear q ' can be rotated synchronously with jackshaft II, intermediate gear Q ' is engaged with input gear q, and multiple gear driving gears are fixed on jackshaft II, i.e., multiple gear driving gears can be in Countershaft II rotates synchronously, and multiple gear driven gears are set on output shaft III, i.e., the opposite output of each gear driven gear Axis III is rotatable, and multiple gear driven gears engage correspondingly with multiple gear driving gears.Optionally, jackshaft II with There are many length and structure of output shaft III, and on jackshaft II and output shaft III, meshed gears also has different logarithms, from And speed changer 12 has more gears to export.
Further, output gear z is further fixed on output shaft III, i.e. output gear z can be synchronized with output shaft III to be turned Dynamic, output gear z can be engaged with the differential mechanism driven gear z ' of differential mechanism 13, the power to export power motor 11, It is transmitted to differential mechanism 13 by speed changer 12, and semiaxis 22 and wheel are driven by differential mechanism 13, realizes that vehicle 100000 travels.
Preferably, jackshaft II and output shaft III are spaced apart setting along the front-rear direction of vehicle 100000, and input shaft I is located at The top of two axis, the more compact structure of speed changer 12 as a result, and be arranged on electric drive axle assembly 100, it more saves empty Between.
Preferably, input gear q, intermediate gear q ', multiple gear driving gears and multiple gear driven gears are oblique Gear.It is further preferred that output gear z is also angular gear.The transmission gear of electric power assembly 101 is all adopted as a result, With angular gear, 12 stable drive of entire speed changer, low noise, transmission efficiency and driving torque are big.
In the specific embodiment of the present invention, as shown in fig. 10 and fig. 12, multiple gear driving gears include one Driving gear 1 and two gear driving gear 2 are kept off, a gear driving gear 1 and two gear driving gear 2 are along the axially spaced of jackshaft II Be fixed on jackshaft II.Multiple gear driven gears include a gear driven gear 1 ' and two gear driven gears 2 ', a gear master Moving gear 1 is engaged with a gear driven gear 1 ', and two gear driving gear 2 and two is kept off driven gear 2 ' and engaged, a gear driven gear 1 ' With two gear driven gears 2 ' along output shaft III axially spaced empty set on output shaft III, synchronizer S is arranged to may be selected Property by one gear driven gear 1 ' and two keep off driven gears 2 ' in one engaged with output shaft III, i.e. synchronizer S can be by one Gear driven gear 1 ' is engaged with output shaft III makes a gear driven gear 1 ' be rotated synchronously with output shaft III, and synchronizer S can also be incited somebody to action Two gear driven gears 2 ' engages with output shaft III makes two gear driven gears 2 ' and the synchronous rotation of output shaft III, and synchronizer S can be with It is not engaged with output shaft III positioned at a gear driven gear 1 ' and two keeps off driven gears 2 ' and III asynthetic centre position of output shaft, That is neutral gear position.Output gear z is fixed on output shaft III.
As shown in figure 12, synchronizer S is located between a gear driven gear 1 ' and two gear driven gears 2 ', output gear z In the side far from two gear driven gears 2 ' of a gear driven gear 1 '.The both ends of input shaft I can pass through the circle at both ends respectively Taper roller bearing is supported on case of transmission 121, and the both ends of jackshaft II can be supported on by two taper roll bearings On case of transmission 121, the both ends of output shaft III can be supported on by two taper roll bearings on case of transmission 121.
In short, in Figure 10 and Figure 12, speed changer 12 is two shift transmissions 12, and simple in structure, light weight, speed ratio are big, turn round Square is big, and has stronger power performance, and preferable maneuvering performance can meet the requirement of general vehicle.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects It connects, can also be to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (20)

1. a kind of drive axle assemblies for vehicle, including：
Driving axis, the driving axis include two axle assemblies of setting spaced apart along the longitudinal direction, each described Axle assembly includes axle case assy, and the axle case assy includes axle housing component and two semiaxis, and two semiaxis are located at institute It states in axle housing component；
Suspension system, each axle assembly are connected by the suspension system with the vehicle frame of the vehicle；
It is characterized in that,
At least one of two described axle assemblies are electric drive axle assembly, and the electric drive axle assembly further includes that electric power is total At the electric power assembly includes power motor, speed changer, differential mechanism, and the speed changer has case of transmission, the power Motor is fixed on the case of transmission, and for the differential mount on the case of transmission, the differential mechanism is located at institute It states in axle housing component, the case of transmission is fixed on the axle housing component；
Further include：
Suspension arrangement, the suspension arrangement are connected between the electric power assembly and the vehicle frame of the vehicle, the suspension dress Between one end and the vehicle frame of the vehicle for setting the separate axle case assy for being connected to the case of transmission.
2. the drive axle assemblies according to claim 1 for vehicle, which is characterized in that the suspension system includes along a left side Right direction is spaced apart two elastic components of setting, and the both ends of each elastic component are connected with two axle housing components respectively, Each elastic component is respectively positioned on the top of two axle housing components.
3. the drive axle assemblies according to claim 2 for vehicle, which is characterized in that the suspension system further includes：
Balance shaft assembly, the balance shaft assembly be fixed on the vehicle frame and in the longitudinal direction be located at two vehicle bridge it is total At centre, it is each attached on the balance shaft assembly in the middle part of each elastic component.
4. the drive axle assemblies according to claim 3 for vehicle, which is characterized in that the elastic component includes at least one Laminate spring.
5. the drive axle assemblies according to claim 4 for vehicle, which is characterized in that pass through in the middle part of the elastic component U-bolts is fixed on the balance shaft assembly.
6. the drive axle assemblies according to claim 3 for vehicle, which is characterized in that the suspension system further includes edge Upper and lower directions is spaced apart the first distance rod group and the second distance rod group of setting；
The first distance rod group includes symmetrically arranged two the first subgroups in the longitudinal direction, two first subgroups with Two axle housing components correspond, and each first subgroup includes multiple first distance rods, and each described first pushes away Power bar is both connected between the vehicle frame and the corresponding axle housing component；
The second distance rod group includes symmetrically arranged two the second subgroups in the longitudinal direction, two second subgroups with Two axle housing components correspond, and each second subgroup includes multiple second distance rods, and each described second pushes away Power bar is both connected between the balance shaft assembly and the corresponding axle housing component.
7. the drive axle assemblies according to claim 6 for vehicle, which is characterized in that
One end of each first distance rod is connected with the middle part of the corresponding axle housing component, each first distance rod The other end be connected with the vehicle frame by the first distance rod vehicle frame mounting base, the first distance rod vehicle frame mounting base is fixed on Centre on the vehicle frame and positioned at two axle housing components.
8. the drive axle assemblies according to claim 7 for vehicle, which is characterized in that each first distance rod One end is respectively positioned on the inside of the other end of same first distance rod.
9. the drive axle assemblies according to claim 7 for vehicle, which is characterized in that each first distance rod One end is connected by the first distance rod axle housing mounting base with the middle part of the corresponding axle housing component, the first distance rod bridge Shell mounting base is fixed on the middle part of the axle housing component and the top positioned at the axle housing component.
10. the drive axle assemblies according to claim 9 for vehicle, which is characterized in that each first subgroup is equal Including two first distance rods, one end of two first distance rods is integrally formed, corresponding with first subgroup The first distance rod axle housing mounting base be one, and described one end of two first distance rods with first thrust Bar axle housing mounting base is connected；
The first distance rod vehicle frame mounting base corresponding with first subgroup is two, two first distance rods it is another One end is corresponded with two the first distance rod vehicle frame mounting bases.
11. the drive axle assemblies according to claim 7 for vehicle, which is characterized in that the first distance rod vehicle frame Mounting base is fixed on the inside of the vehicle frame.
12. the drive axle assemblies according to claim 6 for vehicle, which is characterized in that
One end of each second distance rod is connected with the end of the corresponding axle housing component, each second distance rod The other end be connected with the balance shaft assembly by the second distance rod balance shaft mounting base, the second distance rod balance shaft peace Dress seat is fixed on the end of the balance shaft assembly, the end of the axle housing component corresponding with same second distance rod It is located at the same side of the driving axis with the end of the balance shaft assembly.
13. the drive axle assemblies according to claim 12 for vehicle, which is characterized in that each second distance rod One end be respectively positioned on same second distance rod the other end inside.
14. the drive axle assemblies according to claim 12 for vehicle, which is characterized in that each second distance rod One end be connected by the second distance rod axle housing mounting base and the end of the corresponding axle housing component, second distance rod Axle housing mounting base is fixed on the end of the axle housing component and the lower section positioned at the corresponding axle housing component.
15. the drive axle assemblies according to claim 14 for vehicle, which is characterized in that each second subgroup is equal Including two the second distance rods, the second distance rod axle housing mounting base corresponding with second subgroup is two, and described The corresponding second distance rod balance shaft mounting base of second subgroup is two；
The both ends of the axle housing component corresponding with second subgroup are respectively fixed with is spaced apart setting in the lateral direction Two elastic component mounting bases, two elastic component mounting bases are corresponded with two the second distance rod axle housing mounting bases, Each second distance rod axle housing mounting base is each attached to the lower section of the corresponding elastic component mounting base；
Each second distance rod balance shaft mounting base is each attached to the lower section of balance shaft assembly.
16. the drive axle assemblies according to claim 6 for vehicle, which is characterized in that each first distance rod Ball articulated structure is all had with the both ends of each second distance rod.
17. the drive axle assemblies for vehicle according to any one of claim 1-16, which is characterized in that described in two Axle assembly is the electric drive axle assembly, and two electric drive axle assemblies are arranged to an electric drive axle assembly It is formed after rotating 180 ° perpendicular to axis in the front-back direction for electric drive axle assembly described in another.
18. the drive axle assemblies according to claim 17 for vehicle, which is characterized in that further include：Two motor controls Device processed, two electric machine controllers and two electric drive axle assemblies correspond, and each electric machine controller list Solely control the power motor of the corresponding electric drive axle assembly.
19. the drive axle assemblies for vehicle according to any one of claim 1-16, which is characterized in that described in two One in axle assembly is electric drive axle assembly, another in two axle assemblies is driven bridge.
20. a kind of vehicle, which is characterized in that including：The driving for vehicle according to any one of claim 1-19 Axle assemble.
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WO2017114420A1 (en) * 2015-12-31 2017-07-06 Byd Company Limited Vehicle and drive axle unit for vehicle
WO2017114419A1 (en) * 2015-12-31 2017-07-06 比亚迪股份有限公司 Vehicle and drive axle component for use in vehicle
US10500940B2 (en) * 2017-08-18 2019-12-10 Arvinmeritor Technology, Llc Axle assembly having an electric motor module and a gear reduction module
CN108134483A (en) * 2018-02-02 2018-06-08 胡涛 A kind of power plant
CN111907279B (en) * 2019-05-09 2022-09-06 比亚迪股份有限公司 Vehicle with a steering wheel
CN111923727A (en) * 2020-08-25 2020-11-13 上海伊控动力***有限公司 Two-gear electric drive axle arrangement structure for commercial vehicle

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CN201881893U (en) * 2010-11-29 2011-06-29 李祥 Integral differential motor assembly used on electric vehicle
EP2665160A1 (en) * 2011-01-11 2013-11-20 JTEKT Corporation Device for transmitting driving force of motors
CN202368295U (en) * 2011-11-17 2012-08-08 北汽福田汽车股份有限公司 Balanced rear suspension system and mining dump truck
CN202541243U (en) * 2012-05-02 2012-11-21 中联重科股份有限公司 Suspension mechanism of vehicle and vehicle with suspension mechanism
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