CN105966237A - Vehicle and drive axle module used for vehicle - Google Patents

Vehicle and drive axle module used for vehicle Download PDF

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Publication number
CN105966237A
CN105966237A CN201511028980.7A CN201511028980A CN105966237A CN 105966237 A CN105966237 A CN 105966237A CN 201511028980 A CN201511028980 A CN 201511028980A CN 105966237 A CN105966237 A CN 105966237A
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CN
China
Prior art keywords
axle
assembly
distance rod
vehicle
axle housing
Prior art date
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Granted
Application number
CN201511028980.7A
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Chinese (zh)
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CN105966237B (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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Publication date
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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
Application granted granted Critical
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 vehicle and a drive axle module used for the vehicle. The drive axle module comprises a drive axle assembly, wherein the drive axle assembly comprises two vehicle axle assemblies which are disposed at an interval along the back-forth direction, each vehicle axle assembly comprises an axle housing assembly, each axle housing assembly comprises an axle housing module and two semi-axles, and the two semi-axles are located inside the axle housing module; at least one of the two vehicle axle assemblies is an electric drive axle assembly, the electric drive axle assembly also comprises an electric power assembly, the electric power assembly comprises a power motor, a transmission and a differential mechanism, the transmission comprises a transmission shell body, the power motor is fixed on the transmission shell body, the differential mechanism is supported on the transmission shell body, the differential mechanism is located in the axle housing module, and the transmission shell body is fixed on the axle housing module; and the drive axle module also comprises a suspension system, wherein each vehicle axle assembly is connected to a frame of the vehicle by the suspension system. The drive axle module disclosed by the invention has the advantages of a compact structure, a high degree of integration and green and environment-friendly effects.

Description

Vehicle and the 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 have The vehicle of this drive axle assemblies.
Background technology
In correlation technique, the transmission link of drive axle is many, transmission chain length, and transmission efficiency is low, and volume is big, difficult arrangement, and Not environmentally, noise is big, and air pollution is serious, there is room for improvement.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention proposes one Plant compact conformation, energy-saving ring, degree of integration height and the drive axle assemblies for vehicle of environmental protection.
Present invention also offers a kind of vehicle.
The drive axle assemblies for vehicle according to a first aspect of the present invention includes: driving axis, described driving axis bag Including two axle assemblies of the most spaced apart setting, each described axle assembly all includes axle case assy, described axle housing Assembly includes that axle housing assembly and two semiaxis, two described semiaxis are positioned at described axle housing assembly；In two described axle assemblies At least one be electric drive axle assembly, described electric drive axle assembly also includes that electric power assembly, described electric power assembly include Power motor, variator, differential mechanism, described variator has case of transmission, and described power motor is fixed on described speed change On device housing, described differential mount is on described case of transmission, and described differential mechanism is positioned at described axle housing assembly, described Case of transmission is fixed on described axle housing assembly；Suspension system, each described axle assembly all by described suspension system with The vehicle frame of described vehicle is connected.
According to the drive axle assemblies for vehicle of the present invention, by by two axle assemblies in driving axis at least One is set to compact conformation, driving-chain is short, transmission efficiency is high and arranges easy electric drive axle assembly, so that vehicle is real Now drive process steadily, environmental protection, zero-emission, no pollution, low noise；By suspension system by vehicle frame and each vehicle bridge Assembly is 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, thus has driving Process steadily, environmental protection, zero-emission, no pollution, low noise, comfortableness advantages of higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the second axle assembly according to embodiments of the present invention and vehicle frame；
Fig. 2 is the structural representation at a visual angle of the second axle assembly according to embodiments of the present invention；
Fig. 3 is the structural representation at another visual angle of the second axle assembly according to embodiments of the present invention；
Fig. 4 is the structural representation of electric drive axle assembly according to embodiments 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 representation of axle case assy according to embodiments of the present invention；
Fig. 9 is the structural representation of electric power assembly according to embodiments of the present invention；
Figure 10 is the internal structure schematic diagram of variator according to embodiments of the present invention；
Figure 11 is the structural representation of differential-speed lock mechanism according to embodiments of the present invention；
Figure 12 is the drive mechanism schematic diagram of vehicle according to embodiments of the present invention；
Figure 13 is the structural representation of vehicle according to embodiments of the present invention.
Reference:
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, cooling Liquid actuator 1111, coolant circulation passage 1112, entrance A, outlet B, variator 12, case of transmission 121, defeated Enter axle I, jackshaft II, output shaft III, input gear q, idler gear q ', gear driving gear 1, gear driven tooth Wheel 1 ', two gear driving gears 2, two gear driven gears 2 ', output gear z, lock unit S, differential mechanism 13, differential mechanism from Moving gear z ', electro-hydraulic gearshift perform module 15, axle case assy 102, hub reduction gear 20, hub reduction gear housing 201, Sun wheel 202, planetary gear 203, ring gear 204, ring gear support 205, back-up ring 206, axle housing assembly 21, axle housing 210, 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, spacing spiral shell Mother 271, locking gasket 272, differential-speed lock mechanism 28, driving cylinder 281, piston 2811, cylinder block 2812, transmission group Part 282, connecting rod 2821, flange 28211, shifting fork bar 2822, shift fork 2823, spring 2824, sliding sleeve 283, first Axle assembly 300, vehicle frame 400, suspension system 500, elastic component 50, balance shaft assembly 51, U-bolts 52, first push away Power bar the 53, second distance rod the 54, first distance rod vehicle frame mounting seat the 551, first distance rod axle housing mounting seat 552, second Distance rod balance axle mounting seat the 553, second distance rod axle housing mounting seat 554, elastic component mounting seat 555, bolt 401, spiral shell Bolt 402, bolt 403, bolt 405, bolt 406.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to accompanying drawing The embodiment described is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Referring to Fig. 1-Figure 13, vehicle 100000 according to embodiments of the present invention is described.As shown in Fig. 1-Figure 13, according to this The vehicle 100000 of inventive embodiments includes vehicle frame the 400, first axle assembly 300 and the drive axle assemblies 10000 for vehicle, Wherein the drive axle assemblies 10000 for vehicle includes drive axle 1000 and suspension system 500.Wherein driving axis 1000 I.e. second axle assembly 1000.
First axle assembly 300 and the second axle assembly 1000 are along the spaced apart setting in direction before and after vehicle 100000, such as Figure 13 Shown in, the first axle assembly 300 is the front axle assembly of vehicle 100000, after the second axle assembly 1000 is 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 Two axle assemblies of the spaced apart setting in direction.As shown in Figures 2 and 3, each axle assembly all includes axle case assy 102, Axle case assy 102 includes axle housing assembly 21 and two semiaxis 22, and two semiaxis 22 are positioned at axle housing assembly 21.
At least one in two axle assemblies is electric drive axle assembly 100, and in i.e. two axle assemblies, can be one is electricity Driving axis 100, another is driven bridge；Or two axle assemblies are electric drive axle assembly 100.
Two axle assemblies be all electric drive axle assembly 100 embodiment in, each axle assembly all can drive vehicle 100000 travel, thus the second axle assembly 1000 is drive axle and powerful, adapts to level road and climbing, mixed economy Property is good.
Preferably, two electric drive axle assemblies 100 are arranged to an electric drive axle assembly 100 for another electric drive axle assembly 100 are formed after the axis being perpendicular to fore-and-aft direction rotates 180 °.It is to say, 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 this electric drive Axle assembly 100 is formed after the axis being perpendicular to fore-and-aft direction rotates 180 °.Thus, the structure of the second axle assembly 1000 is more Compact, it is simple to arrange, space availability ratio is high and load is evenly distributed.
Preferably, two electric drive axle assemblies 100 can be just the same, and so middle drive axle and rear driving axle can share, Thus reduce and manufacture cost.Certainly, in some other the embodiment of the present invention, two electric drive axle assemblies 100 Can there is nuance.
Further, two axle assemblies be all electric drive axle assembly 100 embodiment in, vehicle 100000 can also wrap Include two electric machine controllers, two electric machine controllers and two electric drive axle assembly 100 one_to_one corresponding, and each motor controls Device individually controls the power motor 11 of the electric drive axle assembly 100 of correspondence.Thus, two independent works of electric drive axle assembly 100 Make, non-interference, it is controlled by two electric machine controllers respectively, by being precisely controlled turning of unit motivation of adjustment motor 11 Speed, thus realize real-time synchronization.Additionally, due to two electric drive axle assemblies 100 can work independently, even if there being an electricity Driving axis 100 can not work, and another electric drive axle assembly 100 also can drive car load to run, and has two independences Power source, i.e. two independent power motors 11 so that car load power is more powerful.
In two axle assemblies one is electric drive axle assembly 100, the reality that another is driven bridge in two axle assemblies Executing in example, electric drive axle assembly 100 drives driven bridge, it is achieved the traveling of vehicle 100000, and simple in construction and layout are 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 101 are become to include power motor 11, variator 12 and differential mechanism 13.As shown in Fig. 5, Fig. 6 and Fig. 8, axle case assy 102 Including 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 understood 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 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, variator 12 has case of transmission 121, power motor 11 is fixed on case of transmission 121, and differential mechanism 13 is bearing on case of transmission 121, variator Housing 121 is fixed on axle housing assembly 21.Such as, in some embodiments of the invention, power motor 11 can pass through Threaded connector is fixed on case of transmission 121, and case of transmission 121 can be threaded connection part and be fixed on axle housing group On part 21, differential mechanism 13 is bearing on case of transmission 121 by bearing.
It is to say, in electric drive axle assembly 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 by power motor 11, change Speed device 12, differential mechanism 13 and axle case assy 102 integrate.
Electric drive axle assembly 100 according to embodiments of the present invention, by by power motor 11, variator 12, differential mechanism 13 And axle case assy 102 integrates, thus compact conformation, assembling is simple, alleviate quality, volume is little, take sky Between little, be easy on vehicle 100000 arrange, and shorten driving chain, transmission loss is little, transmission efficiency is high.
Further, electric drive axle assembly 100 can also include suspension arrangement, and suspension arrangement is connected to electric power assembly 101 And between vehicle frame 400.It is to say, electric power assembly 101 is not to be carried by axle case assy 102 completely, electric power is total Become 101 to be connected with vehicle frame 400 also by suspension arrangement, so energy active balance electric power assembly 101 centroid motion and to bridge The moment of torsion that housing assy 102 produces.By arranging suspension arrangement, impact can be effectively reduced, reach electric power assembly 101 as far as possible Beat Tong Bu with axle case assy 102, the moment between electric power assembly 101 and axle case assy 102 is almost dropped to zero, protect Demonstrate,prove connection reliability between the two, it is ensured that power transmission stability, it is ensured that the safety in utilization of whole electric drive axle assembly 100.
The arrangement of this electric drive axle assembly 100, more conducively electric power assembly 101 volume are big, power motor 11 power Big vehicle 100000, thus meet the traveling demand of the vehicle 100000 of heavy-load type well.
Suspension arrangement can be connected between one end away from axle case assy 102 of case of transmission 121 and vehicle frame 400, from And more conducively balance electric power assembly 101 centroid motion and to axle case assy 102 produce moment of torsion, make electric power assembly 101 Installation with axle case assy 102 is more stable.
Alternatively, suspension arrangement can include that two vibroshocks, two vibroshocks can be symmetricly set on case of transmission 121 The left and right sides.Thus, the stress of electric power assembly 101 more equalizes.Vehicle frame 400 can include crossbeam, the one of vibroshock End is arranged on crossbeam, and the other end of vibroshock is arranged on case of transmission 121.
Electric drive axle assembly 100 according to embodiments of the present invention, outstanding by arranging between electric power assembly 101 and vehicle frame 400 Hang device, can effectively reduce impact, reaches electric power assembly 101 as far as possible and beats Tong Bu with axle case assy 102, electric power Moment between assembly 101 and axle case assy 102 almost drops to zero, it is ensured that connection reliability between the two, it is ensured that power passes Dynamic stability, the use making whole electric drive axle assembly 100 is more reliable, safer.
Each axle assembly is all connected with vehicle frame 400 by suspension system 500.It is to say, suspension system 500 is vehicle frame 400 with the connection member of each axle assembly so that the vibration of the drive system of vehicle 100000 is big on the impact of car load Big minimizing, draws high the comfortableness of car load.
According to the drive axle assemblies 10000 for vehicle of inventive embodiments, by by two cars in driving axis 1000 At least one in axle assembly is set to compact conformation, driving-chain is short, transmission efficiency is high and arranges easy electric drive axle assembly 100 so that vehicle 100000 realize driving process steadily, environmental protection, zero-emission, no pollution, low noise；Pass through Vehicle frame 400 is connected by suspension system 500 with each axle assembly so that vehicle 100000 is more comfortable.
Vehicle 100000 according to embodiments of the present invention, uses above-mentioned drive axle assemblies 10000, thus has driving process and put down Surely, environmental protection, zero-emission, no pollution, low noise, comfortableness advantages of higher.
The drive axle assemblies 10000 for vehicle according to embodiments of the present invention is described in detail referring to Fig. 1-Figure 13.Such as figure Shown in 13, the drive axle assemblies 10000 for vehicle includes vehicle frame the 400, first axle assembly the 300, second axle assembly 1000 With suspension system 500.
First axle assembly 300 and the second axle assembly 1000 are along the spaced apart setting in direction before and after vehicle 100000, and the second bridge is total Becoming 1000 to include that two axle assemblies, at least one in two axle assemblies are electric drive axle assembly 100, each vehicle bridge is total Cheng Jun is connected with vehicle frame 400 by suspension system 500.
Suspension system 500 according to embodiments of the present invention is described in detail referring to Fig. 1-Fig. 3.As shown in Figure 1-Figure 3, outstanding Frame system 500 include two elastic components 50 of the most spaced apart setting, balance shaft assembly 51 and along the vertical direction between The the first distance rod group being spaced apart and the second distance rod group.
Two the most spaced apart settings of elastic component 50, a left side being positioned at vehicle 100000, one is positioned at vehicle The right side of 100000.The two ends (i.e. front-end and back-end) of each elastic component 50 are connected with two axle housing assemblies 21 respectively, and Each elastic component 50 is respectively positioned on the top of two axle housing assemblies 21.Alternatively, elastic component 50 includes at least one of which leaf spring, excellent Selection of land, elastic component 50 is multilamellar leaf spring, and the stacking from top to bottom of multilamellar leaf spring is arranged.
In other words, the front end of the elastic component 50 in left side is connected with the left end of the axle housing assembly 21 of located anteriorly axle assembly, The rear end of elastic component 50 in left side is connected with the left end of the axle housing assembly 21 of the axle assembly being located behind, the elastic component in left side 50 tops being positioned at two axle housing assemblies 21；The front end of the elastic component 50 on right side and the axle housing group of located anteriorly axle assembly The right-hand member of part 21 is connected, the right-hand member phase of the rear end of the elastic component 50 on right side and the axle housing assembly 21 of the axle assembly being located behind Even, the elastic component 50 on right side is positioned at the top of two axle housing assemblies 21.
It is to say, according to the drive axle assemblies 10000 for vehicle of the present invention, be placed in bullet owing to axle housing assembly 21 is whole Property part less than 50, i.e. axle case assy 102 and electric power assembly 101 be respectively positioned on elastic component 50 (leaf spring) lower section so that electricity Power assembly 101 vibrates the impact on car load and greatly reduces, and draws high the comfortableness of car load, and drives process ring steady, green Guarantor, zero-emission, no pollution, low noise.
Balance shaft assembly 51 is fixed on vehicle frame 400, and balance shaft assembly 51 is positioned at two axle assemblies in the longitudinal direction Between, i.e. two axle assemblies lay respectively 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, say, that balance shaft assembly 51 can as the connection member of elastic component 50 with vehicle frame 400, The middle part of the elastic component 50 in left side is fixed on the left end of balance shaft assembly 51, and the middle part of the elastic component 50 on right side is fixed on balance The right-hand member of axle assembly 51.Thus elastic component 50 is fixing more firm, and the two ends of the most each elastic component 50 are separately fixed at two On the end of the same side of axle housing assembly 21, and the middle part of each elastic component 50 is fixed in the respective end of balance shaft assembly 51.
Including as a example by least one of which leaf spring by elastic component 50, the middle part of elastic component 50 is fixed on balance axle by U-bolts 52 On assembly 51, i.e. at least one of which leaf spring is fixed on corresponding one end of balance shaft assembly 51 by U-bolts 52.
Alternatively, each elastic component 50 is fixed on the corresponding of balance axle by the U-bolts 52 that two fore-and-aft directions are spaced apart On end.
As shown in Figure 1-Figure 3, the first distance rod group includes the most symmetrically arranged two the first subgroups, two One subgroup and two axle housing assembly 21 one_to_one corresponding, the most each first subgroup all includes multiple first distance rod 53, Mei Ge One distance rod 53 is both connected between vehicle frame 400 and corresponding axle housing assembly 21.
Second distance rod group includes the most symmetrically arranged two the second subgroups, two the second subgroups and two axle housings Assembly 21 one_to_one corresponding, each second subgroup all includes that multiple second distance rod 54, each second distance rod 54 are both connected to Between balance shaft assembly 51 and corresponding axle housing assembly 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 axle housing group Between part 21, any one second distance rod 54 in the second distance rod group is both connected to balance shaft assembly 51 and corresponding bridge Between shell component 21, by above-mentioned two distance rod group and balance shaft assembly 51 and the connection with vehicle frame 400 so that two The position of individual axle assembly relative frame 400 is fixed, and when the second axle assembly 1000 produces power, vehicle body is pushed advance.
In an embodiment specifically of the present invention, the first distance rod group is positioned at the top of the second distance rod group, Mei Ge One end of one distance rod 53 is connected with the middle part of corresponding axle housing assembly 21, and one end of the most each first distance rod 53 is the most logical Cross the first distance rod axle housing mounting seat 552 to be connected with the middle part of corresponding axle housing assembly 21, the first distance rod axle housing mounting seat 552 middle parts being fixed on axle housing assembly 21, and the first distance rod axle housing mounting seat 552 is positioned at the top of axle housing assembly 21.
The other end of each first distance rod 53 is connected with vehicle frame 400 by the first distance rod vehicle frame mounting seat 551, and first pushes away Power bar vehicle frame mounting seat 551 is fixed on vehicle frame 400, and the first distance rod vehicle frame mounting seat 551 is positioned at two axle housing assemblies The centre of 21.
In other words, each the most corresponding first distance rod axle housing mounting seat 552 of first distance rod 53 and first thrust Bar vehicle frame mounting seat 551, the front end of the first distance rod 53 in the first located anteriorly subgroup is pacified by the first distance rod axle housing Dress seat 552 is connected with the middle part of the axle housing assembly 21 in front, after the first distance rod 53 in the first located anteriorly subgroup End is connected with vehicle frame 400 by the first distance rod vehicle frame mounting seat 551；The first distance rod in the first subgroup being located behind The rear end of 53 is connected with the middle part of the axle housing assembly 21 at rear by the first distance rod axle housing mounting seat 552, is located behind The front end of the first distance rod 53 in the first subgroup is connected with vehicle frame 400 by the first distance rod vehicle frame mounting seat 551.
Preferably, one end of each first distance rod 53 is respectively positioned on the inner side of the other end of same first distance rod 53, the most just Being to say, each first distance rod 53 is all obliquely installed, and the first distance rod 53 in the first located anteriorly subgroup is from forward direction After stretch out, 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 seat 551 is fixed on the inner side of vehicle frame 400, the thus knot of suspension system 500 Structure is more compact, and connects and assemble more convenient.Offer it is understood that vehicle frame 400 can include being spaced in left-right direction Two longerons put, the first distance rod vehicle frame mounting seat 551 in left side is positioned at the side rail inner in left side, first thrust on right side Bar vehicle frame mounting seat 551 is positioned at the side rail inner on right side.
In some concrete examples of the present invention, each first subgroup all includes two the first distance rods 53, and two first push away One end of power bar 53 is integrally formed, and the first distance rod axle housing mounting seat 552 corresponding with the first subgroup is one, and two Integral part of one end of one distance rod 53 is connected with the first distance rod axle housing mounting seat 552 simultaneously；Corresponding with the first subgroup First distance rod vehicle frame mounting seat 551 is two, the other end of two the first distance rods 53 and two the first distance rod vehicle frame peaces Dress seat 551 one_to_one corresponding.
In other words, two the first distance rods 53 of each first subgroup constitute a V-arrangement distance rod, the i.e. first distance rod group bag Include two V-arrangement distance rods, one end (i.e. the intersection point of two sidewalls of V-arrangement) of this V-arrangement distance rod and the first distance rod axle housing Mounting seat 552 is connected, and the other end of V-arrangement distance rod includes two terminations, and first distance rod is passed through in one of them termination Vehicle frame mounting seat 551 is connected with the left part (longeron in left side) of vehicle frame 400, another termination by another first Distance rod vehicle frame mounting seat 551 is connected with the right part (longeron on right side) of vehicle frame 400.
Preferably, the first distance rod vehicle frame mounting seat 551 that the termination, left side with the V-arrangement distance rod being positioned at front side is connected With the first distance rod vehicle frame mounting seat 551 being connected with the termination, left side of V-arrangement distance rod being positioned at rear side can a bodily form Become, a first distance rod vehicle frame mounting seat 551 being connected with the termination, right side of V-arrangement distance rod being positioned at front side and be positioned at The first distance rod vehicle frame mounting seat 551 that the termination, right side of the V-arrangement distance rod of rear side is connected may be integrally formed.So Integral part of two the first distance rod vehicle frame mounting seats 551, structural strength is high, and the assembling with vehicle frame 400 is simpler.Can Selection of land, the first distance rod vehicle frame mounting seat 551 after this is integrated can be threaded connection part and be fixed on vehicle frame 400.
In an embodiment specifically of the present invention, the first distance rod group is positioned at the top of the second distance rod group, Mei Ge One end of two distance rods 54 is connected with the end of corresponding axle housing assembly 21, and one end of the most each second distance rod 54 is the most logical Cross the second distance rod axle housing mounting seat 554 to be connected with the end of corresponding axle housing assembly 21, the second distance rod axle housing mounting seat 554 ends being fixed on axle housing assembly 21, and the second distance rod axle housing mounting seat 554 is positioned at the axle housing assembly 21 of correspondence Lower section.
The other end of each second distance rod 54 is connected with balance shaft assembly 51 by the second distance rod balance axle mounting seat 553, Second distance rod balance axle mounting seat 553 is fixed on the end of balance shaft assembly 51, corresponding with same second distance rod 54 The end of axle housing assembly 21 and the end of balance shaft assembly 51 be positioned at the same side of driving axis 1000.
In other words, each the most corresponding second distance rod axle housing mounting seat 554 of second distance rod 54 and second thrust Bar balance axle mounting seat 553, the second thrust is passed through in the front end of second distance rod 54 in the located anteriorly left side in the second subgroup Bar axle housing mounting seat 554 is connected with the left part of the axle housing assembly 21 in front, the of the located anteriorly right side in the second subgroup The front end of two distance rods 54 is connected with the right part of the axle housing assembly 21 in front by the second distance rod axle housing mounting seat 554； The rear end of second distance rod 54 in the located anteriorly left side in the second subgroup by the second distance rod balance axle mounting seat 553 with The left end of balance shaft assembly 51 is connected, and the rear end of second distance rod 54 on the located anteriorly right side in the second subgroup leads to Cross the second distance rod balance axle mounting seat 553 to be connected with the right-hand end of balance shaft assembly 51.
The second distance rod axle housing mounting seat 554 is passed through in the rear end of second distance rod 54 in the left side in the second subgroup being located behind It is connected with the left part of the axle housing assembly 21 at rear, after second distance rod 54 on the right side in the second subgroup being located behind End is connected with the right part of the axle housing assembly 21 at rear by the second distance rod axle housing mounting seat 554；The second son being located behind The front end of second distance rod 54 in the left side in group is by the second distance rod balance axle mounting seat 553 and balance shaft assembly 51 Left end is connected, and the front end of second distance rod 54 on the right side in the second subgroup being located behind is balanced by the second distance rod Axle mounting seat 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 inner side of the other end of same second distance rod 54, the most just Being to say, each second distance rod 54 is all obliquely installed, and the second distance rod 54 in the second located anteriorly subgroup is from forward direction After extend internally, the second distance rod 54 in the second subgroup being located behind stretches out from front to back.
In some concrete examples of the present invention, each second subgroup all includes two the second distance rods 54, with the second subgroup The second corresponding distance rod axle housing mounting seat 554 is two.Further, as it is shown on figure 3, the bridge corresponding with the second subgroup Two the elastic component mounting seats 555 being respectively fixed at two ends with the most spaced apart setting of shell component 21, two elasticity Part mounting seat 555 and two the second distance rod axle housing mounting seat 554 one_to_one corresponding, each second distance rod axle housing mounting seat 554 Being each attached to the lower section of the elastic component mounting seat 555 of correspondence, each second distance rod balance axle mounting seat 553 is each attached to put down The lower section of weighing apparatus axle assembly 51.
In other words, the left end of the axle housing assembly 21 corresponding with the second subgroup fixes an elastic component mounting seat 555, a corresponding left side Second distance rod axle housing mounting seat 554 of end is fixed on the lower section of the elastic component mounting seat 555 of left end, corresponding with the second subgroup The lower section of left end of balance shaft assembly 51 fix a second distance rod balance axle mounting seat 553；Corresponding with the second subgroup The right-hand member of axle housing assembly 21 fixes an elastic component mounting seat 555, the second distance rod axle housing mounting seat 554 of corresponding right-hand member Being fixed on the lower section of the elastic component mounting seat 555 of right-hand member, the lower section of the right-hand member of the balance shaft assembly 51 corresponding with the second subgroup is solid A fixed second distance rod balance axle mounting seat 553.So, the second distance rod group is disposed entirely within the first distance rod group Lower section so that the top of axle assembly and lower section are all fixed with vehicle frame 400, such that it is able to make vehicle frame 400 and axle assembly Position is relatively fixed, and stress more balances, and load is more evenly distributed, and optimizes the arrangement of vehicle 100000.
Preferably, the two ends of each first distance rod 53 and the two ends of each second distance rod 54 are respectively provided with rubber bushing access node Structure, thus the first distance rod 53 and vehicle frame 400 and the junction of axle assembly, and the second distance rod 54 is total with balance axle Become 51 and the junction of axle assembly, be respectively provided with certain flexibility, good damping result, easy to connect.
Preferably, in some embodiments as shown in Figure 1-Figure 3, two axle assemblies are electric drive axle assembly 100, And electric drive axle assembly 100 revolve turnback for another electric drive axle assembly 100 after formed, thus middle drive axle and Rear driving axle can share, and only need to develop an axle assembly, and two V-arrangement distance rods and second of the first distance rod group Four second distance rods 54 of distance rod group, each only need is developed a kind of state, is greatly reduced development cost.
In short, the drive axle assemblies 10000 for vehicle according to embodiments of the present invention, electric drive axle assembly 100 is by power Motor 11, variator 12 and axle case assy 102 are integrated in one, and compact conformation and transmission efficiency are high, and for vehicle Second axle assembly 1000 of drive axle assemblies 10000 all uses electric drive mode, and capacity usage ratio is high, response speed block, And having a higher power performance, the whole power section of vehicle 100000 is all located under elastic component 50 in addition, i.e. car load Vibration source is placed in elastic component 50 times, after the vibration damping of suspension system 500, and vibration weakening, car load comfortableness is greatly improved, And multiple parts (such as axle assembly, V-arrangement distance rod, the second distance rod 54) can share, development cost is low.Preferably Ground, when two axle assemblies are electric drive axle assembly 100, two electric drive axle assemblies 100 can work asynchronously, also Can work independently, even if there being an electric drive axle assembly 100 another electric drive axle assembly 100 that can not work also can drive Car load runs, two independent power sources so that car load power is more powerful.
Electric drive axle assembly 100 according to embodiments of the present invention is described in detail referring to Fig. 5-Figure 13.Such as Fig. 5-Figure 13 institute The electric drive axle assembly 100 shown includes electric power assembly 101, axle case assy 102 and suspension arrangement.Alternatively, electric power Assembly 101 can be bolted on axle case assy 102 by multiple, thus is 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, variator 12 and differential Device 13, electro-hydraulic gearshift perform module 15, and wherein variator 12 has case of transmission 121.
As it is shown in figure 5, power motor 11 can be fixed on case of transmission 121 by multiple bolts 402, multiple bolts 402 being provided at circumferentially spaced around power motor 11.Power motor 11 can be permagnetic synchronous motor.Power motor 11 passes through Triple line external power supply, it is achieved power motor 11 drives.
As it is shown in figure 9, power motor 11 includes active cooling structure 111.Active cooling structure 111 is used for actively power Motor 11 cools down.In some optional embodiments, active cooling structure 111 includes for power motor 11 cooling Coolant circulation passage 1112, carries out cold by coolant circulation in coolant circulation passage 1112 to power motor 11 But.As it is shown in figure 9, coolant circulation passage 1112 has entrance A and outlet B, coolant can enter cold from entrance A But liquid circulation canal 1112, and after carrying out heat exchange with power motor 11, from outlet B output.
Thus, by making power motor 11 carry active cooling structure 111, it is possible to prevent power motor 11 overheated, indirectly Raising efficiency, prevents power motor 11 from burning out, and can meet rotating speed high-power, high and long operational requirements, preferably Mate with the operating condition of vehicle 100000, and may be used for light-duty to heavy complete set vehicle.
Preferably, active cooling structure 111 can also include that coolant actuator 1111, coolant actuator 1111 are located at cold But to drive coolant to flow in coolant circulation passage 1112 on liquid circulation canal 1112.Alternatively, coolant drives Part 1111 can be cooling oil pump.Thus, active cooling structure 111 carries coolant actuator 1111, and degree of integration is high, And assembling is simple.
Certainly, in some optional embodiments of the present invention, coolant circulation passage 1112 can also be with to be positioned at electric drive axle total The coolant connection of the outside of one-tenth 100, say, that coolant can be introduced from outside into, i.e. active cooling structure 111 Coolant circulation passage 1112 can share coolant actuator with the coolant peripheral passage of other parts on vehicle 100000 1111。
Case of transmission 121 can be fixed on the axle housing assembly 21 of axle case assy 102 by bolt 401.Axle housing assembly 21 Including axle housing 210 and cap 213.The middle part of axle housing 210 has the differential mechanism receiving space that both sides end face all opens wide, cap 213 side end faces opened wide being removably mounted on axle housing 210 middle part to close axle housing 210, case of transmission 121 On the opposite side end face opened wide at the middle part being fixed on axle housing 210.
Alternatively, cap 213 can be threaded connection part and be removably mounted on axle housing 210, specifically, such as Fig. 4 Shown in Fig. 5, threaded connector is bolt 403, and cap 213 can be by circumferentially spaced many along this cap 213 Individual bolt 403 is threaded on the side end face opened wide at the middle part of axle housing 210.So, by by removable for cap 213 Being arranged on unloading on axle housing 210, the installation that can make electric power assembly 101 is more convenient, and fixed structure is simple, operation side Just.Specifically, the cap 213 of a side end face (i.e. a side end face at wheel bag) at the middle part of axle housing 210 makes assembled, Electric power assembly 101 and the assembly difficulty of two semiaxis 22 can be efficiently reduced, be more beneficial for the maintenance of differential mechanism 13.
Preferably, electric drive axle assembly 100 also includes multiple bolt 401, and case of transmission 121 is provided with multiple screwed hole, Axle housing 210 is provided with via the most multiple with multiple screwed holes, multiple bolts 401 and multiple via one_to_one corresponding, The screwed hole that each bolt 401 is fixed on correspondence through corresponding via is interior so that case of transmission 121 is fixed on axle housing 210 Middle part open wide opposite side end face on.
It is to say, electric drive axle assembly 100 according to embodiments of the present invention, screwed hole is arranged on case of transmission 121, And via is arranged on axle housing 210, so in the case of ensureing bonding strength, it is also possible to make variator 12 volume the least, Structure is the compactest.
Further, as it is shown in figure 5, the two ends of axle housing assembly 21 (i.e. left end and right-hand member) can be respectively welded and be fixed with two Individual axle tube 23.
Axle case assy 102 can also include 24, two brakes 25 and two of 20, two hub assemblies of two hub reduction gears Individual brake mounting board 214, each hub assembly 24 is all installed in rotation on accordingly on axle tube 23, and two and half Pipe spreader 23 is set in outside two semiaxis 22 correspondingly, and two hub reduction gears 20 and two hub assemblies 24 are one by one Correspondence, the input of each hub reduction gear 20 is connected with corresponding semiaxis 22, the outfan of each hub reduction gear 20 with Corresponding hub assembly 24 is connected.
In some specific embodiments of the present invention, as it is shown in figure 5, hub reduction gear 20 is planetary reducer.OK Star gear reduction unit includes sun gear 202, planetary gear 203 and ring gear 204, and 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 passes through Ring gear support 205 is fixed on the axle tube 23 of correspondence.Thus, volume is little, and transmission efficiency is high, and reduction range is wide.
Alternatively, as it is shown in figure 5, hub reduction gear 20 includes hub reduction gear housing 201, hub reduction gear housing 201 Can be fixed on hub assembly 24, reduce the volume of axle case assy 102, and compact conformation the most further, save space.
Further, ring gear support 205 engages with ring gear 204, and planetary reducer can also include back-up ring 206, 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 to ring gear 204 carry out axial limiting, preferably ensure that the assembly precision of hub reduction gear 20 and hub assembly 24.
Two brakes 25 and two hub assembly 24 one_to_one corresponding, i.e. one the corresponding hub assembly 24 of brake 25 So that this hub assembly 24 is braked.Two brake mounting boards 214 are respectively welded the two ends being fixed on axle housing assembly 21 On, two brakes 25 are threaded connection part and are fixed on correspondingly on two brake mounting boards 214, and two systems The brake drum 251 of dynamic device 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 assemblies 24 One_to_one corresponding, the i.e. one group 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 all set in by spline structure outside the axle tube 23 of correspondence, and often group axial limiting part 27 is equal Including stop nut 271 and locking gasket 272.Stop nut 271 and locking gasket 272 are all set in the half-axile sleeve of correspondence Outside pipe 23, and stop nut 271 is threaded with corresponding axle tube 23 with by corresponding ring gear 204 and corresponding Hub assembly 24 is pressed between locking gasket 272 with the brake drum 251 of corresponding brake 25.
It is understood that 23, two brakes of 24, two axle tubes of 20, two hub assemblies of two hub reduction gears 25, the equal one_to_one corresponding of two brake mounting boards, 27, two semiaxis of 214, two groups of axial limiting parts 22, and at the width of vehicle On degree direction, it is positioned at the two ends, left and right of axle housing assembly 21 with being respectively symmetrically.
Below as a example by right-hand member, describe 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:
Specifically, as shown in Figure 6, the right-hand member of axle housing assembly 21 is welded with an axle tube 23, the hub assembly of right-hand member 24 are 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 Fig. 6, the right-hand member of the semiaxis 22 of right-hand member is through the axle tube 23 of right-hand member, and is threaded connection part (in Fig. 6 Bolt 406) tighten together with the hub reduction gear 20 (such as, hub reduction gear housing 201) of right-hand member, right-hand member The left end of semiaxis 22 is connected with differential mechanism 13 by spline, and the power that differential mechanism 13 exports is passed to by the semiaxis 22 of right-hand member The input of the hub reduction gear 20 of right-hand member, through the deceleration of the hub reduction gear 20 of right-hand member, by power via the wheel of right-hand member The outfan of side reducer 20 passes to the hub assembly 24 of right-hand member and then drives 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, right The brake mounting board 214 of end is fixed on the right-hand member of axle housing assembly 21, and the brake drum 251 of the brake 25 of right-hand member is the most solid Be scheduled on the hub assembly 24 of right-hand member to rotate with hub assembly 24, such as brake mounting board 214 can sheathed and Being weldingly fixed on the axle housing 210 of axle housing assembly 21, the brake 25 of right-hand member is threaded connection part and is fixed on the system of right-hand member On dynamic device installing plate 214, and the brake drum 251 of the brake 25 of right-hand member can be fixed on the wheel hub of right-hand member by bolt 405 On assembly 24, wherein threaded connector and bolt 405 are multiple.The most in the axial direction, i.e. on the left and right directions of vehicle, 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 right side The locking gasket 272 of end group is all set in outside the axle tube 23 of right-hand member, and the stop nut 271 of right-hand member group and the half of right-hand member Pipe spreader 23 is threaded so that the ring gear support 205 of right-hand member and the hub assembly 24 of right-hand member to be pressed on the locking of right-hand member group Between the brake drum 251 of the brake 25 of pad 272 and right-hand member.Thus hub assembly 24 can pass through stop nut 271 And the cooperation of the brake drum 251 of brake 25 carries out axial locking, in like manner, hub reduction gear 20 can also be by spacing The cooperation of the brake drum 251 of nut 271 and brake 25 carries out axial locking.Specifically, hub reduction gear housing 201, The brake drum 251 of brake 25, a part for hub assembly 24 are fixed together by bolt 405.
Locking gasket 272 is possible to prevent stop nut 271 to get loose.Specifically, each hub assembly 24 all passes through hub bearing On 241 axle tubes 23 being rotatably sleeved on correspondence, axial limiting part 27 can adjust the play of hub bearing 241.
By above description, those skilled in the art, can derive 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, This describes the most in detail.
Preferably, axle case assy 102 can also include two abs sensor assemblies 26, two abs sensor assemblies 26 Part can be threaded connection be fixed on correspondingly on two brake mounting boards 214, i.e. the abs sensor group of left end Part 26 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 of right-hand member On installing plate 214.Alternatively, threaded connector can be screw.
Specifically, the induction gear ring 242 of the transducer magnetic head of abs sensor assembly 26 and hub assembly 24 forms sense when rotating Answering voltage signal, signal to export control system (ECU of such as vehicle), control system control brake 25 is embraced when braking Extremely.
Preferably, as it is shown in figure 9, electric power assembly 101 can also include that electro-hydraulic gearshift performs module 15, electro-hydraulic gearshift is held Row module 15 is used for controlling variator 12, and electro-hydraulic gearshift performs module 15 and is arranged on case of transmission 121.This is electro-hydraulic Gearshift performs equipped with the sensor matched and delicate flow valve in module 15, and outside electronic control unit can pass through The signal collected responds, it is possible to is accurately controlled the switching speed of variator 12, the time point of gear switching, makes speed change Device 12 smooth gear shifting, fast response time, maneuverability are good, and can reduce driving fatigue.
Differential-speed lock mechanism 28 is arranged on axle housing assembly 21, and differential-speed lock mechanism 28 is arranged to optionally by two semiaxis The differential casing locking of in 22 and 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, is locked with semiaxis 22 by differential casing Integral, make differential mechanism 13 lose differential action, such that it is able to all torsion torque is transferred on the driving wheel of opposite side, right In operating in the engineering truck particular importance that muddy road easily skids.
As shown in figure 11, described differential-speed lock mechanism 28 includes driving cylinder 281, transmission component 282 and sliding sleeve 283.Drive One end of cylinder 281 is fixed on axle housing assembly 21, sliding sleeve 283 be set in semiaxis 22 outer and can with semiaxis 22 synchronous axial system, Described driving cylinder 281 drives sliding sleeve 283 by transmission component 282 so that sliding sleeve 283 along semiaxis 22 axial with difference Speed device housing unlock unlocked position and and the lock position of differential casing locking between move.Sliding sleeve 283 is positioned at solution lock-bit When putting, sliding sleeve 283 unlocks with differential casing, and now differential mechanism 13 normally realizes differential function, and sliding sleeve 283 is positioned at locking During position, sliding sleeve 283 is integrated with differential casing locking, and differential mechanism 13 loses differential function.
As shown in figure 11, transmission component 282 includes connecting rod 2821, shifting fork bar 2822, shift fork 2823 and spring 2824. Connecting rod 2821 is fixed on axle housing assembly 21, and fork bar is set in outside connecting rod 2821 movably, fork bar and driving Cylinder 281 is connected with shift fork bar 2822 moving axially along connecting rod 2821, optional is understood by, and drives cylinder 281 Including piston 2811 and cylinder block 2812, piston 2811 is removable in cylinder block 2812, one end of shifting fork bar 2822 with Piston 2811 is connected, and shift fork 2823 is fixed on shifting fork bar 2822 to move with shifting fork bar 2822, wherein sliding sleeve 283 Being provided with chute, shift fork 2823 is positioned at chute and moves stirring sliding sleeve 283 under the drive of shifting fork bar 2822.Spring 2824 Between one end of connecting rod 2821 and fork bar, specifically, one end of connecting rod 2821 is provided with and extends radially outward Flange 28211, spring 2824 is set in outside connecting rod 2821, and spring 2824 is positioned at flange 28211 and shifting fork bar 2822 Between, and spring 2824 is arranged in sliding sleeve 283 and moves from unlocked position and compressed during lock position.Thus, transmission The simple in construction of assembly 282, and arrange easily.
As a example by the differential-speed lock mechanism 28 shown in Figure 11, when driving cylinder 281 ventilate or die, shifting fork bar 2822 is driving Driving the moving axially along connecting rod 2821 of dynamic air cylinder 281, and drive fork to move, by shift fork 2823 and chute Cooperation, shift fork 2823 promotes sliding sleeve 283 moving axially along semiaxis 22, when sliding sleeve 283 moves to lock from unlocked position When stop bit is put, spring 2824 is compressed, thus sliding sleeve 283 can return to from lock position under the effect of spring 2824 again Unlocked position, thus control tooth and the differential mechanism 13 profile of tooth end on differential mechanism 13 of sliding sleeve 283 teethed end faces of sliding sleeve 283 The tooth engagement in face or disconnect, final realize about two semiaxis 22 are locked or differential.
Axle case assy 102 according to embodiments of the present invention, by arranging differential-speed lock mechanism 28, can make differential mechanism 13 according to vehicle Different driving cycles, it is achieved differential mechanism 13 differential function or release the differential function of differential mechanism 13, be particularly well-suited to severe The vehicle 100000 that operating mode is run, vehicle 100000 has strong impetus, and differential-speed lock mechanism 28 is integrated in axle housing assembly On 21, compact conformation, firmly install, working stability, reliability is high, makes that electric drive axle assembly 100 reliability is higher, merit Can be more perfect.
One specific embodiment of the variator 12 according to the present invention is described referring to Fig. 7, Fig. 9, Figure 10 and Figure 12. Variator 12 can include power shaft I, jackshaft II and output shaft III.Power shaft I, jackshaft II and output shaft III are the most logical Cross bearing to be bearing on case of transmission 121.Specifically, as shown in Figure 10, power shaft I, jackshaft II and output shaft III All widths along vehicle 100000 extend, the width of the vehicle 100000 i.e. left and right directions of vehicle 100000.
Power shaft I is connected with the motor output shaft VI of power motor 11, such as shown in Figure 10 and Figure 12, power shaft I with Power motor output shaft VI can be connected by spline structure, and specifically, power shaft I has internal spline, motor output shaft VI has the external splines coordinated with this internal spline.Certainly power shaft I and power motor output shaft VI can also pass through shaft coupling It is connected.Electric power assembly 101 according to embodiments of the present invention, by by the motor output shaft VI of power motor 11 and speed change The power shaft I of device 12 is joined directly together, and driving-chain is short, and simple in construction.
As shown in fig. 10 and fig. 12, power shaft I being fixed with input gear q, i.e. input gear q can be same with power shaft I Step rotates, and jackshaft II is fixed with idler gear q ', i.e. idler gear q ' can be middle with jackshaft II synchronous axial system Gear q ' engages with input gear q, and jackshaft II is fixed with multiple gear driving gear, the most multiple gear driving gears Can be set with multiple gear driven gear on output shaft III with jackshaft II synchronous axial system, the most each gear driven gear is equal Output shaft III relatively is rotatable, and multiple gear driven gears engage correspondingly with multiple gear driving gears.Alternatively, Jackshaft II has multiple with the length of output shaft III and structure, and on jackshaft II and output shaft III, meshed gears also has not Same logarithm, thus variator 12 has more gear to export.
Further, output shaft III is further fixed on output gear z, i.e. output gear z can with output shaft III synchronous axial system, Output gear z can engage with the differential mechanism driven gear z ' of differential mechanism 13, thus the power that power motor 11 is exported, It is delivered to differential mechanism 13 through variator 12, and drives semiaxis 22 and wheel by differential mechanism 13, it is achieved vehicle 100000 Travel.
Preferably, jackshaft II and output shaft III are along the spaced apart setting in direction before and after vehicle 100000, and power shaft I is positioned at two The top of individual axle, thus, the more compact structure of variator 12, and be arranged on electric drive axle assembly 100, more save sky Between.
Preferably, input gear q, idler gear q ', multiple gear driving gear and multiple gear driven gear are helical teeth Gear.It is further preferred that output gear z is also angular gear.Thus, the travelling gear of electric power assembly 101 is whole Using angular gear, whole variator 12 stable drive, noise is low, transmission efficiency is high and driving torque is big.
In a specific embodiment of the present invention, as shown in fig. 10 and fig. 12, multiple gear driving gears include a gear Driving gear 1 and two gear driving gears 2, a gear driving gear 1 and two gear driving gears 2 are along the axially spaced-apart of jackshaft II That opens is fixed on jackshaft II.Multiple gear driven gears include a gear driven gear 1 ' and two gear driven gears 2 ', one Gear driving gear 1 engage with a gear driven gear 1 ', and two gear driving gears 2 and two gear driven gears 2 ' engage, one keep off from Moving gear 1 ' and two gear driven gears 2 ' are along the axially spaced empty set of output shaft III on output shaft III, and lock unit S sets It is set to optionally in a gear driven gear 1 ' and two gear driven gears 2 ' be engaged with output shaft III, i.e. synchronizes One gear driven gear 1 ' can be engaged with output shaft III and make a gear driven gear 1 ' and output shaft III synchronous axial system by device S, with Two gear driven gears 2 ' can also be engaged with output shaft III and make two gear driven gears 2 ' and output shaft III synchronous axial system by step device S, Lock unit S may be located on a gear driven gear 1 ' do not engage with output shaft III and two gear driven gears 2 ' with output shaft III not The centre position engaged, i.e. neutral gear position.Output gear z is fixed on output shaft III.
As shown in figure 12, lock unit S is positioned between a gear driven gear 1 ' and two gear driven gears 2 ', output gear z It is positioned at the side away from two gear driven gears 2 ' of a gear driven gear 1 '.The two ends of power shaft I can pass through two ends respectively Taper roll bearing be bearing on case of transmission 121, the two ends of jackshaft II can be propped up by two taper roll bearings Holding on case of transmission 121, the two ends of output shaft III can be bearing in case of transmission 121 by two taper roll bearings On.
In short, in Figure 10 and Figure 12, variator 12 is two shift transmissions 12, simple in construction, light weight, speed ratio be big, Moment of torsion is big, and has stronger power performance, and preferable maneuvering performance can meet the use requirement of general vehicle.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " etc. instruction orientation or position relationship be based on Orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or hint institute The device that refers to or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this Bright restriction.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed Or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two Individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For For those of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can Being that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, the One feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or Oblique upper, or it is 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 it is special to be merely representative of first Levy level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or Feature is contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term Necessarily it is directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, ability The feature of the different embodiments described in this specification or example and different embodiment or example can be entered by the technical staff in territory Row combines and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary, Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment It is changed, revises, replaces and modification.

Claims (20)

1. the drive axle assemblies for vehicle, it is characterised in that including:
Driving axis, described driving axis includes two axle assemblies of the most spaced apart setting, each described Axle assembly all includes that axle case assy, described axle case assy include axle housing assembly and two semiaxis, and two described semiaxis are positioned at institute State in axle housing assembly；
At least one in two described axle assemblies is electric drive axle assembly, and described electric drive axle assembly also includes that electric power is total Becoming, described electric power assembly includes power motor, variator, differential mechanism, and described variator has case of transmission, described Power motor is fixed on described case of transmission, described differential mount on described case of transmission, described differential mechanism position In described axle housing assembly, described case of transmission is fixed on described axle housing assembly；
Suspension system, each described axle assembly is all connected by the vehicle frame of described suspension system with described vehicle.
Drive axle assemblies for vehicle the most according to claim 1, it is characterised in that described suspension system includes edge Two elastic components of the spaced apart setting of left and right directions, the two ends of each described elastic component are connected with two described axle housing assemblies respectively, Each described elastic component is respectively positioned on the top of two described axle housing assemblies.
Drive axle assemblies for vehicle the most according to claim 2, it is characterised in that described suspension system also includes:
Balance shaft assembly, described balance shaft assembly is fixed on described vehicle frame and to be positioned at two described vehicle bridge in the longitudinal direction total In the middle of becoming, the middle part of each described elastic component is each attached on described balance shaft assembly.
Drive axle assemblies for vehicle the most according to claim 3, it is characterised in that described elastic component includes at least One laminate spring.
Drive axle assemblies for vehicle the most according to claim 4, it is characterised in that the middle part of described elastic component leads to Cross U-bolts to be fixed on described balance shaft assembly.
Drive axle assemblies for vehicle the most according to claim 3, it is characterised in that described suspension system also includes First distance rod group of the most spaced apart setting and the second distance rod group；
Described first distance rod group includes the most symmetrically arranged two the first subgroups, two described first subgroups with Two described axle housing assembly one_to_one corresponding, each described first subgroup all includes multiple first distance rod, and each described first pushes away Power bar is both connected between described vehicle frame and corresponding described axle housing assembly；
Described second distance rod group includes the most symmetrically arranged two the second subgroups, two described second subgroups with Two described axle housing assembly one_to_one corresponding, each described second subgroup all includes multiple second distance rod, and each described second pushes away Power bar is both connected between described balance shaft assembly and corresponding described axle housing assembly.
Drive axle assemblies for vehicle the most according to claim 6, it is characterised in that
One end of each described first distance rod is connected with the middle part of corresponding described axle housing assembly, each described first distance rod The other end be connected with described vehicle frame by the first distance rod vehicle frame mounting seat, described first distance rod vehicle frame mounting seat is fixed on On described vehicle frame and be positioned at the centre of two described axle housing assemblies.
Drive axle assemblies for vehicle the most according to claim 7, it is characterised in that each described first distance rod One end be respectively positioned on the inner side of the other end of same described first distance rod.
Drive axle assemblies for vehicle the most according to claim 7, it is characterised in that each described first distance rod One end be all connected by the middle part of the first distance rod axle housing mounting seat and corresponding described axle housing assembly, described first distance rod Axle housing mounting seat is fixed on the middle part of described axle housing assembly and is positioned at the top of described axle housing assembly.
Drive axle assemblies for vehicle the most according to claim 9, it is characterised in that each described first subgroup All including two described first distance rods, one end of two described first distance rods is integrally formed, corresponding with described first subgroup Described first distance rod axle housing mounting seat be one, and described one end of two described first distance rods all pushes away with described first Power bar axle housing mounting seat is connected；
The described first distance rod vehicle frame mounting seat corresponding with described first subgroup is two, two described first distance rods another One end and two described first distance rod vehicle frame mounting seat one_to_one corresponding.
11. drive axle assemblies for vehicle according to claim 7, it is characterised in that described first distance rod car Frame mounting seat is fixed on the inner side of described vehicle frame.
12. drive axle assemblies for vehicle according to claim 6, it is characterised in that
One end of each described second distance rod is connected with the end of corresponding described axle housing assembly, each described second distance rod The other end by second distance rod balance axle mounting seat be connected with described balance shaft assembly, described second distance rod balance axle pacifies Dress seat is fixed on the end of described balance shaft assembly, the end of the described axle housing assembly corresponding with same described second distance rod With the same side that the end of described balance shaft assembly is positioned at described driving axis.
13. drive axle assemblies for vehicle according to claim 12, it is characterised in that each described second thrust One end of bar is respectively positioned on the inner side of the other end of same described second distance rod.
14. drive axle assemblies for vehicle according to claim 12, it is characterised in that each described second thrust One end of bar is all connected with the end of corresponding described axle housing assembly by the second distance rod axle housing mounting seat, described second thrust Bar axle housing mounting seat is fixed on the end of described axle housing assembly and is positioned at the lower section of corresponding described axle housing assembly.
15. drive axle assemblies for vehicle according to claim 14, it is characterised in that each described second subgroup All including two the second distance rods, the described second distance rod axle housing mounting seat corresponding with described second subgroup is two, with institute The described second distance rod balance axle mounting seat stating the second subgroup corresponding is two；
The described axle housing assembly corresponding with described second subgroup be respectively fixed at two ends with the two of the most spaced apart setting Individual elastic component mounting seat, two described elastic component mounting seats and two described second distance rod axle housing mounting seat one_to_one corresponding, often Individual described second distance rod axle housing mounting seat is each attached to the lower section of the described elastic component mounting seat of correspondence；
Each described second distance rod balance axle mounting seat is each attached to the lower section of balance shaft assembly.
16. drive axle assemblies for vehicle according to claim 6, it is characterised in that each described first thrust The two ends of bar and each described second distance rod are respectively provided with ball articulated structure.
17. according to the drive axle assemblies for vehicle according to any one of claim 1-16, it is characterised in that two institutes State axle assembly and be described electric drive axle assembly, and two described electric drive axle assemblies to be arranged to a described electric drive axle total Become another described electric drive axle assembly to be formed after the axis being perpendicular to fore-and-aft direction rotates 180 °.
18. drive axle assemblies for vehicle according to claim 17, it is characterised in that also include: two motors Controller, two described electric machine controllers and two described electric drive axle assembly one_to_one corresponding, and each described electric machine controller Individually control the described power motor of corresponding described electric drive axle assembly.
19. according to the drive axle assemblies for vehicle according to any one of claim 1-16, it is characterised in that two institutes One stated in axle assembly is electric drive axle assembly, and another in two described axle assemblies is driven bridge.
20. 1 kinds of vehicles, it is characterised in that including: according to the driving for vehicle according to any one of claim 1-19 Dynamic axle assemble.
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CN111907279A (en) * 2019-05-09 2020-11-10 比亚迪股份有限公司 Vehicle with a steering wheel
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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
WO2017114420A1 (en) * 2015-12-31 2017-07-06 Byd Company Limited Vehicle and drive axle unit for vehicle
CN109398078A (en) * 2017-08-18 2019-03-01 阿文美驰技术有限责任公司 Vehicle bridge component with electric motor module and The gear deceleration module
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CN111923727A (en) * 2020-08-25 2020-11-13 上海伊控动力系统有限公司 Two-gear electric drive axle arrangement structure for commercial vehicle
CN115302984A (en) * 2021-05-06 2022-11-08 潍坊佩特来电器有限公司 Electric drive axle mechanism and electric drive chassis comprising same

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