CN105984278B - Dumper - Google Patents

Dumper Download PDF

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Publication number
CN105984278B
CN105984278B CN201511030807.0A CN201511030807A CN105984278B CN 105984278 B CN105984278 B CN 105984278B CN 201511030807 A CN201511030807 A CN 201511030807A CN 105984278 B CN105984278 B CN 105984278B
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CN
China
Prior art keywords
gear
axle
assembly
power
distance rod
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Active
Application number
CN201511030807.0A
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Chinese (zh)
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CN105984278A (en
Inventor
刘辉跃
全初鹏
韦佳
魏海龙
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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 CN201511030807.0A priority Critical patent/CN105984278B/en
Publication of CN105984278A publication Critical patent/CN105984278A/en
Priority to PCT/CN2016/112653 priority patent/WO2017114417A1/en
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Publication of CN105984278B publication Critical patent/CN105984278B/en
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Classifications

    • 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

Abstract

The invention discloses a kind of dumper.The dumper includes vehicle frame；First and second axle assemblies, the second and first axle assembly are spaced apart set along the longitudinal direction, and the second axle assembly includes two axle assemblies, and each axle assembly includes axle case assy, and axle case assy includes axle housing component and two semiaxis；At least one in two axle assemblies is electric drive axle assembly, electric drive axle assembly further includes electric power assembly and suspension arrangement, electric power assembly includes power motor, speed changer, differential mechanism, speed changer has case of transmission, and power motor is fixed on case of transmission, and differential mechanism is located in axle housing component, case of transmission is fixed on axle housing component, speed changer includes multiple transmission shafts, and multiple transmission shafts are set gradually from the top down, and suspension arrangement is connected between electric power assembly and vehicle frame；Suspension system, each axle assembly are connected by suspension system with vehicle frame.Dumper according to the present invention, compact-sized, environmentally protective and transmission are more steady.

Description

Dumper
Technical field
The present invention relates to engineering truck field, in particular to a kind of dumper.
Background technology
In correlation technique, power motor, speed changer, transmission shaft and vehicle bridge are separated arrangement, power level-one level-one transmission, Transmission link is more, is driven chain length, and transmission efficiency is low, and volume is big, difficult arrangement, and particularly, some dumpers are this, big to meet Power demand, power motor, the volume of speed changer are usually larger, and it is big that vehicle bridge bears moment of torsion, and vehicle bridge is difficult with speed changer bonding strength Ensure, there are room for improvement.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention carries Go out a kind of and dumper of the driving axis of stable transmission high with small, degree of integration.
Dumper according to the present invention includes：Vehicle frame；First axle assembly；Second axle assembly, second axle assembly and institute State the first axle assembly and be spaced apart setting along the longitudinal direction, second axle assembly includes being spaced apart two set along the longitudinal direction Axle assembly, each axle assembly include axle case assy, and the axle case assy includes axle housing component and two semiaxis, and two A semiaxis is located in the axle housing component；At least one in two axle assemblies is electric drive axle assembly, described Electric drive axle assembly further includes electric power assembly and suspension arrangement, and the electric power assembly includes power motor, speed changer, differential Device, the speed changer have case of transmission, and the power motor is fixed on the case of transmission, the differential mount On the case of transmission, the differential mechanism is located in the axle housing component, and the case of transmission is fixed on the axle housing On component, the speed changer includes multiple transmission shafts, and the multiple transmission shaft is set gradually from the top down, and the suspension arrangement connects It is connected between the electric power assembly and the vehicle frame；Suspension system, each axle assembly pass through the suspension system It is connected with the vehicle frame.
According to the dumper of inventive embodiments, by the way that at least one in two axle assemblies in the second axle assembly is set It is set to that compact-sized, driving-chain is short, transmission efficiency and the easy electric drive axle assembly of arrangement, so that dumper realizes driving Process is steady, environmentally protective, zero emissions, zero pollution, low noise；Vehicle frame is connected with each axle assembly by suspension system, So that dumper is more comfortable, by the way that multiple transmission shafts are set gradually from the top down, the barycenter for greatly shortening electric power assembly arrives The distance at the center of axle case assy so that electric power assembly reduces the opposing torque of axle case assy, and connection is reliable, and transmission is more flat Surely.
Brief description of the drawings
Fig. 1 is the structure diagram of the second axle assembly according to embodiments of the present invention and vehicle frame；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structure diagram of the second axle assembly according to embodiments of the present invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the structure diagram for looking up angle of Fig. 3；
Fig. 6 is the structure diagram of electric drive axle assembly according to embodiments of the present invention；
Fig. 7 is the sectional view of Fig. 6；
Fig. 8 is the enlarged drawing at the E of Fig. 7；
Fig. 9 is the structure diagram of axle case assy according to embodiments of the present invention；
Figure 10 is the structure diagram of electric power assembly according to embodiments of the present invention；
Figure 11 is the internal structure schematic diagram of speed changer according to embodiments of the present invention；
Figure 12 is the side view of Figure 11；
Figure 13 is the structure diagram of power takeoff according to embodiments of the present invention；
Figure 14 is the drive mechanism schematic diagram of dumper according to the present invention；
Figure 15 is the front view of dumper according to embodiments of the present invention.
Reference numeral：
Dumper 10000, the second axle assembly 1000, electric drive axle assembly 100, electric power assembly 101, power motor 11, Motor output shaft VI, coolant circulation passage 111, entrance A, outlet B, speed changer 12, case of transmission 121, first axle I, the Two axis II, the 3rd axis III, the first shaft part III -1, the second shaft part III -2, the 4th axis IV, input gear q, idle pulley q ', first gear K1, second gear k2, a gear driving gear 1, one keeps off driven gear 1 ', two gear driving gear 2, two keeps off driven gear 2 ', three gears Driving gear 3, three keeps off driven gear 3 ', output gear z, one or four gear synchronizer S1, two or three gear synchronizer S2, bearing B1, bearing B2, differential mechanism 13, differential mechanism driven gear z ', power takeoff 14, power taking axis V, power take-off gear k3, power taking synchronizer S3, power takeoff Housing 141, power takeoff bearing 142, electro-hydraulic gearshift execution module 15, device to be driven 16, axle case assy 102, hub reduction gear 20th, hub reduction gear housing 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, semiaxis 22, axle tube 23, hub assembly 24, hub bearing 241st, brake 25, brake drum 251, axial limiting part 27, stop nut 271, locking gasket 272, the first axle assembly 300, car 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, First distance rod vehicle frame mounting base 551, the first distance rod axle housing mounting base 552, the second distance rod balance shaft mounting base 553, Two distance rod axle housing mounting bases 554, elastic component mounting base 555, the first distance rod V-arrangement axle housing mounting base 556, bolt 403, bolt 405th, bolt 406.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the 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.
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the 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.
Dumper 10000 according to embodiments of the present invention is described referring to Fig. 1-Figure 15.As shown in Fig. 1-Figure 15, according to The dumper 10000 of the embodiment of the present invention includes vehicle frame 400, the first axle assembly 300, the second axle assembly 1000 and suspension system 500。
The anteroposterior direction of first axle assembly 300 and the second axle assembly 1000 along dumper 10000 is spaced apart setting, such as schemes Shown in 15, the first axle assembly 300 is the front truck axle assembly of dumper 10000, and the second axle assembly 1000 is after dumper 10000 Axle assembly.
Wherein, as shown in figure 15, the second axle assembly 1000 includes being spaced apart setting along the anteroposterior direction of dumper 10000 Two axle assemblies.As Figure 1-Figure 5, each axle assembly includes axle case assy 102, and axle case assy 102 includes axle housing Component 21 and two semiaxis 22, two semiaxis 22 are located in axle housing component 21.
At least one in two axle assemblies is electric drive axle assembly 100, i.e. one in two axle assemblies can be with It is electric drive axle assembly 100, another is driven bridge；Or two axle assemblies are electric drive axle assembly 100.
In two axle assemblies all in the embodiment of electric drive axle assembly 100, each axle assembly can drive self-unloading Car 10000 travels, so that the second axle assembly is drive axle and powerful, adapts to level road and climbing, comprehensive economy is good.
Preferably, it is total for another electric drive axle to be arranged to an electric drive axle assembly 100 for two electric drive axle assemblies 100 Formed into 100 after rotating 180 ° perpendicular to axis in the front-back direction.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.Thus, the more compact structure of the second axle assembly 1000, Easy 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 be total to With manufacturing cost so as to reduce.Certainly, in some other embodiments of the present invention, two electric drive axle assemblies 100 There can be nuance.
Further, in two axle assemblies all in the embodiment of electric drive axle assembly 100, dumper 10000 may be used also To be corresponded including two electric machine controllers, two electric machine controllers with two electric drive axle assemblies 100, and each motor control Device processed individually controls the power motor 11 of corresponding electric drive axle assembly 100.Thus, two 100 independent works of electric drive axle assembly Make, it is non-interference, it is controlled respectively by two electric machine controllers, by being precisely controlled turning for unit motivation of adjustment motor 11 Speed, so as to fulfill real-time synchronization.Further, since two electric drive axle assemblies 100 can work independently, even if there is an electric drive Axle assembly 100 cannot work, another electric drive axle assembly 100 can also drive vehicle to run, and have two independent power Source, 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 the traveling of dumper 10000, and simple in structure and arrangement is held Easily.
As shown in Fig. 6-Figure 14, 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 into 101.As shown in Fig. 6-Fig. 9, 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 is turned round by the change velocity modulation of speed changer 12 and passes to differential mechanism 13, two output terminals of differential mechanism 13 output power imparts power to coupled car to two semiaxis 22, semiaxis 22 Wheel, so as to drive dumper 10000 to travel.
As shown in Figure 6 and Figure 7, in the electric drive axle assembly 100 of the embodiment of the present invention, speed changer 12 has 12 shell of speed changer Body 121, power motor 11 are fixed on 12 housing 121 of speed changer, and differential mechanism 13 is supported on 12 housing 121 of speed changer, speed change 12 housing 121 of device is fixed on axle housing component 21.For example, in some embodiments of the invention, power motor 11 can pass through Threaded connector is fixed on 12 housing 121 of speed changer, and 12 housing 121 of speed changer can be connected through a screw thread part and be fixed on axle housing On component 21, differential mechanism 13 is supported on 12 housing 121 of speed changer by bearing.
That is, in electric drive axle assembly 100,12 housing 121 of speed changer can be carried as the installation of power motor 11 Body, and 12 housing 121 of speed changer is the connecting component of 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 embodiments of the present invention, by by power motor 11, speed changer 12, differential mechanism 13 And axle case assy 102 integrates, thus it is compact-sized, assembling is simple, alleviate quality, is small, occupying little space, Easy to be arranged on dumper 10000, and shorten that driving chain, transmission loss be small, transmission efficiency.
Speed changer 12 includes multiple transmission shafts, and multiple transmission shafts are set gradually from the top down, thus greatly shorten electric power Distance of the barycenter of assembly 101 to the center of axle case assy 102 so that electric power assembly 101 turns round the opposite of axle case assy 102 Square is reduced, and connection is reliable, and transmission is more steady.
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, so can 101 centroid motion of active balance electric power assembly and it is total to axle housing The moment of torsion produced into 102.By setting suspension arrangement, impact can be effectively reduced, it is total with axle housing to reach electric power assembly 101 as far as possible It is synchronous into 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 whole electric drive axle assembly 100.
The arrangement of this electric drive axle assembly 100, more conducively 101 volume of electric power assembly are big, 11 work(of power motor The big dumper 10000 of rate, so as to meet the traveling demand of the dumper 10000 of heavy-load type well.
Suspension arrangement can be connected to one end of the remote axle case assy 102 of 12 housing 121 of speed changer and vehicle frame 400 it Between, thus more conducively 101 centroid motion of balance electric power assembly and to axle case assy 102 produce moment of torsion, make electric power assembly 101 is more stable with the installation of axle case assy 102.
Alternatively, suspension arrangement can include two dampers, and two dampers can be symmetricly set on 12 shell of speed changer The left and right sides of body 121.Thus, the stress of electric power assembly 101 is more balanced.Vehicle frame 400 can include crossbeam, and the one of damper End is installed on crossbeam, and the other end of damper is installed on 12 housing 121 of speed changer.
Electric drive axle assembly 100 according to embodiments of the present invention, by being set between electric power assembly 101 and vehicle frame 400 Put suspension arrangement, impact can be effectively reduced, reach as far as possible electric power assembly 101 beat with axle case assy 102 it is synchronous, 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, makes the use of whole 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 dumper 10000 to vehicle is big It is big to reduce, draw high the comfort of vehicle.
According to the dumper 10000 of inventive embodiments, by by two axle assemblies in the second axle assembly at least One be arranged to compact-sized, driving-chain is short, transmission efficiency and the easy electric drive axle assembly of arrangement so that dumper 10000 realize steady driving process, environmentally protective, zero emissions, zero pollution, low noise；By suspension system 500 by vehicle frame 400 It is connected with each axle assembly so that dumper 10000 is more comfortable, by the way that multiple transmission shafts are set gradually from the top down, greatly Distance of the big barycenter for shortening electric power assembly 101 to the center of axle case assy 102 so that electric power assembly 101 is total to axle housing Opposing torque into 102 is reduced, and connection is reliable, and transmission is more steady.
Dumper 10000 according to embodiments of the present invention is described in detail referring to Fig. 1-Figure 15.As shown in figure 15, self-unloading Car 10000 includes vehicle frame 400, the first axle assembly 300, the second axle assembly and suspension system 500.
The anteroposterior direction of first axle assembly 300 and the second axle assembly 1000 along dumper 10000 is spaced apart setting, the second bridge Assembly 1000 includes two axle assemblies, and at least one in two axle assemblies is 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 embodiments of the present invention is described in detail referring to Fig. 1-Fig. 5.As Figure 1-Figure 5, hang Frame system 500 includes being spaced apart two elastic components 50 set, balance shaft assembly 51 in left-right direction and is spaced along the vertical direction Open up the first distance rod group and the second distance rod group put.
Two elastic components 50 are spaced apart set in left-right direction, and a left side for being located at dumper 10000, one is located at certainly Unload 10000 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 often A elastic component 50 is respectively positioned on the top of two axle housing components 21.Alternatively, 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 front end of the elastic component 50 in left side and the left end phase of 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 positioned at the top of two axle housing components 21；The front end of the elastic component 50 on right side and the axle housing group of the axle assembly positioned at front The right end of part 21 is connected, the rear end of the elastic component 50 on right side and the right end phase for the axle housing component 21 of axle assembly being located behind Even, the elastic component 50 on right side is positioned at the top of two axle housing components 21.
That is, dumper 10000 according to the present invention, since axle housing component 21 is entirely placed in elastic component below 50, I.e. axle case assy 102 and electric power assembly 101 are respectively positioned on below elastic component 50 (leaf spring) so that the vibration pair of electric power assembly 101 The influence of vehicle greatly reduces, and draws high the comfort of vehicle, and drives steady process, environmentally protective, zero emissions, zero 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 respectively, 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 firm, 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.
Alternatively, the U-bolts 52 that each elastic component 50 is spaced apart by two anteroposterior directions is fixed on the phase of balance shaft It should hold.
As Figure 1-Figure 5, 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 produces 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 by the first distance rod axle housing mounting base 552 with the middle part of corresponding axle housing component 21, 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 of 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, 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 inner side 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 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 base 551 is fixed on the knot of the inner side, thus suspension system 500 of vehicle frame 400 Structure is more compact, and connects and assemble and is more convenient.It is understood that vehicle frame 400 can include being spaced apart in left-right direction setting 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 car on right side Frame mounting base 551 is positioned 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 two, and two First distance rod 53 is connected correspondingly with two the first distance rod axle housing mounting bases 552；Corresponding with the first subgroup first Distance rod vehicle frame mounting base 551 is two, the other end and two the first distance rod vehicle frame mounting bases of two the first distance rods 53 551 correspond.
In other words, two the first distance rod axle housings installation corresponding with two 53 structures of the first distance rod of each first subgroup Seat 552 is integrated into a first distance rod V-arrangement axle housing mounting base 556.
Preferably, one first to be connected with the rear end of first distance rod 53 in the left side of the first subgroup positioned at front side pushes away Power bar vehicle frame mounting base 551 and be connected with the front end of first distance rod 53 in the left side of the first subgroup positioned at rear side one One distance rod vehicle frame mounting base 551 may be integrally formed, with first distance rod 53 on the right side of the first subgroup positioned at front side The first distance rod vehicle frame mounting base 551 and the first distance rod with the right side of the first subgroup positioned at rear side that rear end is connected The first distance rod vehicle frame mounting base 551 that 53 front end is connected may be integrally formed.So integrally formed two first Distance rod vehicle frame mounting base 551, structural strength is high, simpler with the assembling of vehicle frame 400.Alternatively, first after this is integrated pushes away Power bar vehicle frame mounting base 551 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 by the second distance rod axle housing mounting base 554 with the end of corresponding axle housing component 21, 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 the second axle assembly.
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 of 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, the right side in second subgroup in front The front end of the second distance rod 54 pass through the second distance rod axle housing mounting base 554 and the right part phase of 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 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.
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 by the second distance rod axle housing mounting base 554 with the right part of the axle housing component 21 at rear；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 put down 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 inner side 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 stretches out 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 set in the lateral direction, two elasticity Part mounting base 555 is corresponded with two the second distance rod axle housing mounting bases 554, each second distance rod axle housing mounting base 554 The lower section of corresponding elastic component mounting base 555 is each attached to, 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 21 corresponding with the second subgroup 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 The lower section of the elastic component mounting base 555 of right end is scheduled on, the lower section of the right end of balance shaft assembly 51 corresponding with the second subgroup is fixed One the second distance rod balance shaft mounting base 553.In this way, the second distance rod group is disposed entirely within the first distance rod group Side so that the top of axle assembly is fixed with lower section with vehicle frame 400, so as to so that the position of vehicle frame 400 and axle assembly It is relatively fixed, and stress more balances, load is more evenly distributed, and optimizes the arrangement of dumper 10000.
Preferably, the both ends of each first distance rod 53 and the both ends of each second distance rod 54 are respectively provided with ball and are hinged Structure, so that the junction of the first distance rod 53 and vehicle frame 400 and axle assembly, and the second distance rod 54 and balance shaft assembly 51 and the junction of axle assembly, certain flexibility is respectively provided with, good damping result is easy to connect.
Preferably, in some embodiments as Figure 1-Figure 5, 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, so that middle drive axle is with after Drive axle can share, and only need to develop an axle assembly, and four first distance rods 53 and second of the first distance rod group Four second distance rods 54 of distance rod group, each only need to develop a kind of state, greatly reduce development cost.
In short, dumper 10000 according to embodiments of the present invention, electric drive axle assembly 100 is by power motor 11, speed change Device 12 and axle case assy 102 are integrated in one, compact-sized and transmission efficiency, and the second axle assembly of dumper 10000 1000 all using electric drive mode, and capacity usage ratio is high, response speed block, and has stronger power performance, in addition dumper 10000 whole power section is all located under elastic component 50, i.e. the vibration source of vehicle is placed under elastic component 50, by suspension system After the vibration damping of system 500, vibration weakening, vehicle comfort greatly improves, and multiple components (such as axle assembly, the first distance rod 53rd, the second distance rod 54) it can share, development cost is low.Preferably, when two axle assemblies are electric drive axle assembly 100 When, two electric drive axle assemblies 100 can work asynchronously, and can also work independently, even if having an electric drive axle assembly 100 not Another electric drive axle assembly 100 that can work can also drive vehicle to run, two independent power sources so that vehicle power is more It is powerful.
Electric drive axle assembly 100 according to embodiments of the present invention is described in detail referring to Fig. 6-Figure 15.Such as Fig. 6-Figure 15 Shown electric drive axle assembly 100 includes electric power assembly 101, axle case assy 102 and suspension arrangement.Alternatively, electric power is total It can be fixed on into 101 by multiple bolts on axle case assy 102, so as to be integrated into electric drive axle assembly 100.
As shown in Fig. 6, Fig. 7, Figure 10-Figure 14, electric power assembly 101 includes power motor 11, speed changer 12 and differential mechanism 13rd, electro-hydraulic gearshift execution module 15, wherein speed changer 12 have 12 housing 121 of speed changer.
As shown in fig. 6, power motor 11 can be fixed on by multiple bolts on 12 housing 121 of speed changer, multiple bolts Around being provided at circumferentially spaced for power motor 11.Power motor 11 can be permanent magnet synchronous motor.Power motor 11 passes through triple line External power supply, realizes that power motor 11 drives.
As shown in Figure 10, power motor 11 includes active cooling structure.Active cooling structure is used for actively to power motor 11 are cooled down.In some optional embodiments, active cooling structure includes the coolant circulation cooled down for power motor 11 Passage 111, cools down power motor 11 by circulation of the coolant in coolant circulation passage 111.As shown in Figure 10, Coolant circulation passage 111 has entrance A and outlet B, and coolant can enter coolant circulation passage 111 from entrance A, and pass through Cross after carrying out heat exchange with power motor 11, from outlet B outputs.
Thus, by making power motor 11 carry active cooling structure, it can prevent power motor 11 from overheating, indirectly lifting Efficiency, prevents power motor 11 from burning out, and can meet high-power, high rotating speed and prolonged operational requirements, preferably with stirring The operating condition matching of car, and can be used for light-duty to heavy complete set vehicle.
Preferably, active cooling structure can also include coolant actuator, and coolant actuator is located at coolant circulation To drive coolant flowing in the coolant circulation passage 111 on passage 111.Alternatively, coolant actuator can be cooling Oil pump.Thus, active cooling structure carries coolant actuator, and degree of integration is high, and assembles simple.
Certainly the present invention some optional embodiments in, coolant circulation passage 111 can also with positioned at electric drive The coolant connection of the outside of axle assembly 100, that is to say, that coolant can be introduced from outside into, i.e., active cooling structure is cold But liquid circulation canal 111 can share coolant actuator with the coolant circulation path of other components on trucd mixer.
12 housing 121 of speed changer can be bolted on the axle housing component 21 of axle case assy 102.Axle housing component 21 Including axle housing 210 and shell cover 213.The middle part of axle housing 210 has the unlimited differential mechanism accommodation space of both sides of the face, shell cover 213 It is removably mounted on axle housing 210 to close a unlimited side end face at the middle part of axle housing 210,12 housing 121 of speed changer is solid It is scheduled on unlimited another side end face at the middle part of axle housing 210.
Alternatively, shell cover 213 can be connected through a screw thread part and be removably mounted on axle housing 210, specifically, as Fig. 6, Shown in Fig. 7 and Fig. 9, threaded connector is bolt 403, and shell cover 213 can be by circumferentially spaced multiple along the shell cover 213 Bolt 403 is threaded on a unlimited side end face at the middle part of axle housing 210.In this way, by the way that shell cover 213 is removably pacified It on axle housing 210, can be more convenient the installation of electric power assembly 101, and fixed structure is simple, it is easy to operate.Specifically, The shell cover 213 of one side end face (taking turns the side end face at bag) at the middle part of axle housing 210 makes assembled, can efficiently reduce electricity The assembly difficulty of power assembly 101 and two semiaxis 22, is more advantageous to the maintenance of differential mechanism 13.
Preferably, electric drive axle assembly 100 further includes multiple bolts, and 12 housing 121 of speed changer is equipped with multiple threaded holes, Axle housing 210 is equipped with to be corresponded with multiple threaded holes multiple vias correspondingly, multiple bolts with multiple vias, each spiral shell Bolt is fixed in corresponding threaded hole through corresponding via 12 housing 121 of speed changer to be fixed on to the middle part of axle housing 210 On unlimited another side end face.
That is, electric drive axle assembly 100 according to embodiments of the present invention, threaded hole is arranged on 12 housing of speed changer On 121, and via is arranged on axle housing 210, so in the case of bonding strength is ensured, it is also possible that 12 volume of speed changer is use up Measure small, structure is more compact.
Further, as Fig. 7 shows, the both ends (i.e. left end and right end) of axle housing component 21, which can be respectively welded, is fixed with two 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 on axle tube 23, two half-axile sleeves Pipe 23 is set in outside two semiaxis 22 correspondingly, and two hub reduction gears 20 are corresponded with two hub assemblies 24, often The input terminal of a hub reduction gear 20 is connected with corresponding semiaxis 22, output terminal and the corresponding wheel hub of each hub reduction gear 20 Assembly 24 is connected.
In some specific embodiments of the present invention, as shown in figure 8, 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.Thus, small, transmission efficiency, reduction range is wide.
Alternatively, as shown in figure 8, hub reduction gear 20 includes 20 housing 201 of hub reduction gear, 20 housing of hub reduction gear 201 can be fixed on hub assembly 24, thus further reduce the volume of axle case assy 102, and compact-sized, save empty Between.
Further, internal tooth coil support 205 is engaged with ring gear 204, and planetary reducer can also include baffle ring 206, baffle ring 206 is diametrically folded between internal tooth coil support 205 and ring gear 204, so as to be carried out radially to ring gear 204 It is spacing, it preferably ensure that the assembly precision of hub reduction gear 20 and hub assembly 24.
Two brakes 25 are corresponded with two hub assemblies 24, i.e., a brake 25 corresponds to a hub assembly 24 To be braked to the hub assembly 24.Two brake mounting boards 214, which are respectively welded, to be fixed on the both ends of 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 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 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 outside corresponding axle tube 23 by spline structure, 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 hub assembly 24, two of hub reduction gear 20, two axle tube 23, 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 figure 8, the right end of axle housing component 21 is welded with an axle tube 23, the hub assembly 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 hub assembly 24 can realize the rotation of wheel.More specifically, as shown in figure 8, 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. 8) and the right side The hub reduction gear 20 (for example, 20 housing 201 of hub reduction gear) at end tightens together, and the left end of the semiaxis 22 of right end passes through flower Key is connected with differential mechanism 13, and the power that differential mechanism 13 exports is passed to the defeated of the hub reduction gear 20 of right end by the semiaxis 22 of right end Enter end, by the deceleration of the hub reduction gear 20 of right end, power is passed to via the output terminal of the hub reduction gear 20 of right end The hub assembly 24 and then drive vehicle wheel rotation of right end.
It is installed on the brake 25 of the 24 corresponding right end of hub assembly of right end 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 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 the hub assembly 24 of right end by bolt 405, 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 271 He of stop nut of right end group, then 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, hub reduction gear 20 housing 201, brake 25 Brake drum 251, a part for hub assembly 24 are fixed together by bolt 405.
Locking gasket 272 can prevent stop nut 271 from loosening.Specifically, each hub assembly 24 passes through hub spindle Hold 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 24th, 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, as shown in Figure 10, electric power assembly 101 can also include electro-hydraulic gearshift execution module 15, electro-hydraulic gearshift Execution module 15 is used to control speed changer 12, and electro-hydraulic gearshift execution module 15 is installed on 12 housing 121 of speed changer.This is electro-hydraulic Matching sensor and delicate flow valve are housed in gearshift execution module 15, exterior electronic control unit can pass through The signal of collection responds, and can be accurately controlled switching speed, the time point of gear switching of speed changer 12, make speed changer 12 smooth gear shiftings, fast response time, maneuverability are good, and can reduce driving fatigue.
Differential-speed lock mechanism is installed on speed changer 12, and differential-speed lock mechanism is arranged in two semiaxis 22 optionally One with the differential casing locking of the differential mechanism 13 of integrated electric drive axle.
The operation principle of differential-speed lock mechanism is, when driving wheel-slip for one, differential casing and semiaxis 22 to be locked Integrally, differential mechanism 13 is made to lose differential action, so as to which all torsion torque is transferred on the driving wheel of opposite side, for It is especially important to operate in the engineering truck that muddy road easily skids.
Axle case assy 102 according to embodiments of the present invention, by setting differential-speed lock mechanism, can make differential mechanism 13 according to vehicle Different driving cycles, realize 13 differential function of differential mechanism or release differential mechanism 13 differential function, especially suitable for severe work The trucd mixer of condition operation, trucd mixer possesses strong impetus, and differential-speed lock mechanism is integrated on speed changer 12, compact-sized, peace Dress is firm, working stability, and reliability is high, makes 100 reliability higher of electric drive axle assembly, function more perfect.
Speed changer includes transmission power input unit and transmission power output section.Transmission power input unit and power electric The motor output shaft of machine is connected directly, and transmission power output section is configured and adapted to will be dynamic in transmission power input unit Power is exported to differential mechanism, and exports the wheel to dumper by differential mechanism to drive dumper to travel.Alternatively, such as Fig. 5 institutes Show, differential mechanism 13 can be supported on case of transmission 121 by differential bearing.
Electric power assembly 101 can also include power takeoff 14, and power takeoff 14 includes power takeoff input terminal and power takeoff exports End.Power takeoff input terminal is arranged to and at least one linkage in transmission power input unit and transmission power output section. That is power takeoff input terminal can be arranged to link with transmission power input unit, power takeoff input terminal can also be arranged to With transmission power output section link, power takeoff input terminal can also be arranged to transmission power input unit link and at the same time with Link transmission power output section.Wherein " link " and refer to action between two components with actively and driven relation, one A component actuation drives another component actuation.
Power takeoff output terminal is arranged to be selectively engageable power takeoff input terminal to export from power takeoff input terminal Power.That is, when power takeoff output terminal is engaged with power takeoff input terminal, power takeoff output terminal can will come from power takeoff and input The power output at end gives device 16 to be driven.
Alternatively, power takeoff 14 is fixed on case of transmission 121, that is to say, that power takeoff 14 is integrated in transmission case On body 121, the thus more compact structure of electric power assembly 101.Specifically, power takeoff 14 can include power takeoff housing 141, should Power takeoff housing 141 is connected with case of transmission 121 or power takeoff housing 141 is integrally formed with case of transmission 121.
When speed changer 12 only needs driving dumper, the power of power motor 11 pass sequentially through transmission power input unit, Transmission power output section, differential mechanism 13 export the wheel to dumper, so as to drive dumper to travel.
When needing to drive device 16 to be driven, it is defeated that the part of the power of power motor 11 passes sequentially through transmission power Enter portion, transmission power output section, differential mechanism 13 export wheel to dumper.Another part of the power of power motor 11 according to Secondary at least one, power takeoff input terminal, power takeoff by transmission power input unit and transmission power output section exports End output is to device 16 to be driven.
In the specific embodiment of the present invention, device 16 to be driven is an oil pump, and the oil pump is in power takeoff 14 Driving under, high pressure liquid pressure oil can be produced, can be that automobile-bucket lifting mechanism etc. of dumper provides power source, meet that vehicle is other The demand of power.
That is, the electric drive axle assembly 100 for dumper according to embodiments of the present invention, by setting power takeoff 14, power output to mechanism in need can be met more market demands, make electric drive axle assembly 100 more practical.This Outside, due at least one linkage in power takeoff input terminal and transmission power input unit and transmission power output section, so that Transmission parts are few, transmission efficiency, and can reduce rate of breakdown, reduce manufacture cost.
Power takeoff input terminal can include power take-off gear k3, and power takeoff output terminal can include power taking axis V, such as Figure 13 institutes Show, power taking axis V can be supported on power takeoff housing 141 by power takeoff bearing 142.Power take-off gear k3 empty sets are in power taking axis On V, i.e. power take-off gear k3 can be rotated relative to power taking axis V, that is to say, that when power take-off gear k3 is rotated, power taking axis V can not turn It is dynamic.
Power takeoff 14 can also include power taking synchronizer S3, and power taking synchronizer S3 is arranged to optionally synchronous power taking Gear k3 and power taking axis V.That is, when device 16 to be driven needs power, power taking synchronizer S3 by power take-off gear k3 with Power taking axis V is synchronous, so that the power output that power taking axis V exports power take-off gear k3 is to device 16 to be driven.When dress to be driven Put 16 be not required power when, power take-off gear k3 is separated with power taking axis V, and power take-off gear k3 can dally around power taking axis V.
In the specific embodiment of the present invention, as shown in figures 11-14, multiple transmission shafts can include first axle Ith, the second axis II, the 3rd axis III and the 4th axis IV.First axle I, the second axis II, the 3rd axis III and the 4th axis IV pass through bearing branch Hold on case of transmission 121.Specifically, as shown in Figure 11, Figure 12 and Figure 14, first axle I, the second axis II, III and of the 3rd axis 4th axis IV extends along the width of dumper, the left and right directions of width, that is, dumper of dumper, power motor 11 can be arranged in the right side of case of transmission 121.
First axle I is connected with the motor output shaft VI of power motor 11, such as shown in Figure 11, first axle I is exported with motor Axis VI can be connected by spline structure, and specifically, first axle I has internal spline, and motor output shaft VI has and the internal spline The external splines of cooperation.Certainly, first axle I can also be connected with motor output shaft VI by shaft coupling.According to embodiments of the present invention Electric power assembly 101, by the way that the motor output shaft VI of power motor 11 is connected directly with first axle I, driving-chain is short, and tie Structure is simple.
As shown in Figure 11 and Figure 14, input gear q is fixed with first axle I, i.e. input gear q can be same with first axle I Step rotates, and is fixed with idle pulley q ' on the second axis II, i.e. idle pulley q ' can be rotated synchronously with the second axis II, idle pulley q ' and input gear Q is engaged.
As shown in figure 14, the 3rd axis III includes the first shaft part III -1 and the second shaft part III -2 being coaxially disposed, and the second axis Section III -2 is arranged to optionally engage with the first shaft part III -1, that is to say, that the second shaft part III -2 can be with the first shaft part To be rotated synchronously with the first shaft part III -1, the second shaft part III -2 and the first shaft part III -1 each can also individually turn for III -1 engagement It is dynamic.
As shown in figure 14, one end of the first shaft part III -1 is set in outside the second shaft part III -2, i.e. the second shaft part III -2 leans on One end of nearly first shaft part III -1 is supported on the first shaft part III -1, and the first shaft part III -1 is further supported on case of transmission 121, Specifically, the first shaft part III -1 is hollow shaft, and the first shaft part III -1 has bearing hole, close first shaft part of the second shaft part III -2 III -1 one end is supported on by bearing B1 in the bearing hole (i.e. the internal perisporium of the first shaft part III -1) of the first shaft part III -1, and first Shaft part III -1 (i.e. the periphery wall of the first shaft part III -1) is also supported on case of transmission 121 by bearing B2, and bearing B1 includes A pair of of taper roll bearing positioned at one end that the second axis II is held, bearing B2 are included respectively positioned at the both ends of the first shaft part III -1 Two cylinder roller bearings.Set by this inside and outside different types of bearing, make the stress of the 3rd axis III more reasonable, indirectly Extend the service life of speed changer 12.
First gear k1 is fixed with first shaft part III -1, i.e. first gear k1 can turn with the first shaft part III -1 is synchronous It is dynamic, and when the first shaft part III -1 is not engaged with the second shaft part III -2, first gear k1 can be freely rotated with respect to the second shaft part III -2, When first shaft part III -1 is engaged with the second shaft part III -2, first gear k1 can also be rotated synchronously with the second shaft part III -2, the One gear k1 is engaged with idle pulley q ', is set with multiple gear driven gears on the second shaft part III -2, i.e. gear driven gear can phase Second shaft part III -2 is rotated, that is to say, that when gear driven gear rotates, the second shaft part III -2 can not rotate.
Second gear k2 and multiple gear driving gears are fixed with 4th axis IV, i.e. second gear k2 can be with the 4th axis IV rotates synchronously, and each in multiple gear driving gears can be rotated synchronously with the 4th axis IV.Second gear k2 and One gear k1 is engaged, and multiple gear driving gears engage correspondingly with multiple gear driven gears.
Alternatively, the length and structure of the 3rd axis III and the 4th axis IV have a variety of, on the 3rd axis III and the 4th axis IV, nibble The gear of conjunction also has different logarithms, so that speed changer 12 has more gears to export.
Wherein, first axle I, input gear q, the second axis II, idle pulley q ' composition transmission power input units, the 3rd axis III, First gear k1, the 4th axis IV, second gear k2, multiple gear driving gears and multiple gear driven gears form speed changer and move Power output section.
Further, as shown in figure 14, it is further fixed on output gear z on the second shaft part III -2, i.e. output gear z can be with Second shaft part III -2 rotates synchronously, and output gear z can engage with the differential mechanism driven gear z ' of differential mechanism 13, so that by power The power that motor 11 exports, differential mechanism 13 is delivered to by speed changer 12, and drives semiaxis 22 and wheel by differential mechanism 13, real Existing dumper traveling.
It is further preferred that input gear q, idle pulley q ', first gear k1, second gear k2, multiple gear driving gears It is angular gear with multiple gear driven gears.Output gear z is also angular gear.Thus, the transmission of electric power assembly 101 Gear is all big using angular gear, whole 12 stable drive of speed changer, low noise, transmission efficiency and driving torque.
In the specific embodiment of the present invention, multiple gear driven gears include a gear driven gear 1 ', two gears Driven gear 2 ' and three gear driven gears 3 '.Multiple gear driving gears include a gear driving gear 1,2 and of two gear driving gear Three gear driving gears 3, a gear driven gear 1 ' is engaged with a gear driving gear 1, two keep off driven gears 2 ' and two gear driving gear 2 Engagement, three gear driven gears 3 ' are engaged with three gear driving gears 3.
Transmission power output section can also include one or four gear synchronizer S1 and two or three gear synchronizer S2.One or four gear synchronizers S1 is arranged to optionally engage one in the first shaft part III -1 and one gear driven gear 1 ' with the second shaft part III -2. That is the second shaft part III -2 can be engaged with same with the first shaft part III -1 by one or four gear synchronizer S1 with the first shaft part III -1 Step rotates, or the second shaft part III -2 can be engaged so that the second shaft part by one or four gear synchronizer S1 with a gear driven gear 1 ' III -2 and one gear driven gear 1 ' rotates synchronously, or it is not engaged with the first shaft part III -1 that the second shaft part III -2, which can also be located at, The centre position not engaged again with a gear driven gear 1 '.
Two or three gear synchronizer S2 are arranged to one in two gear driven gears 2 ' and three gear driven gears 3 ' optionally It is a to be engaged with the second shaft part III -2.That is, the second shaft part III -2 can pass through two or three gear synchronizer S2 and two gear driven tooths Wheel 2 ' is engaged so that the second shaft part III -2 and two gear driven gear 2 ' rotates synchronously, or the second shaft part III -2 can pass through two or three Gear synchronizer S2 is engaged with three gear driven gears 3 ' so that the second shaft part III -2 and three gear synchronous rotation of driven gear 3 ', Huo Zhe Two shaft parts III -2 can also be located at the interposition for not engaging and not engaged with three gear driven gears 3 ' with two gear driven gears 2 ' Put.
Wherein, as shown in figure 14, output gear z is between a gear driven gear 1 ' and two gear driven gears 2 '.Thus The more compact structure of speed changer 12.
In the four speed transmission 12, the both ends of first axle I are supported on transmission case by paired taper roll bearing On body 121, idle pulley q ' is connected with the second axis II by inside and outside spline structure, and the second axis II is rolled by the paired circular cone in both ends Sub- bearing is supported on case of transmission 121, and three gear driven gears 3 ', two gear driven gears 2 ' and a gear driven gear 1 ' pass through Bearing fit is connected on the second shaft part III -2, and two or three gear synchronizer S2, one or four gear synchronizer S1 and output gear z pass through spline Respective outer side edges are connected on the second shaft part III -2.Second gear k2 is connected on the 4th axis IV by spline structure, three gears Driving gear 3, two gear driving gear 2 and one keep off driving gear 1 and are connected by spline structure on the 4th axis IV.Differential Device driven gear z ' can be connected through a screw thread part or the form of welding is fixedly mounted on differential mechanism 13, drive differential mechanism 13 Rotate.
From the above description it can be seen that the present invention provides a four speed transmission 12, speed than it is big, moment of torsion is big, have compared with Strong power performance, preferable maneuverability, can meet the requirement of heavy goods vehicles.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified 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 only used for description purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects Connect or be electrically connected or can communicate each other；It can be directly connected, can also be indirectly connected by intermediary, can be with It is the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly.For this area For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features directly 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 are directly over second feature or oblique upper, 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 immediately below second feature or obliquely downward, 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 the spy for combining the embodiment or example description Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature Close and combine.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (43)

  1. A kind of 1. dumper, it is characterised in that including：
    Vehicle frame；
    First axle assembly；
    Second axle assembly, second axle assembly are spaced apart setting, second bridge along the longitudinal direction with first axle assembly Assembly includes being spaced apart two axle assemblies set along the longitudinal direction, and each axle assembly includes axle case assy, institute Stating axle case assy includes axle housing component and two semiaxis, and two semiaxis are located in the axle housing component；
    At least one in two axle assemblies is electric drive axle assembly, and it is total that the electric drive axle assembly further includes electric power Into and suspension arrangement, the electric power assembly include power motor, speed changer, differential mechanism, the speed changer has transmission case Body, the power motor are fixed on the case of transmission, and the differential mount is on the case of transmission, the difference Fast device is located in the axle housing component, and the case of transmission is fixed on the axle housing component, and the speed changer includes multiple Transmission shaft, the multiple transmission shaft are set gradually from the top down, the suspension arrangement be connected to the electric power assembly with it is described Between vehicle frame, the suspension arrangement be connected to one end of the remote axle case assy of the case of transmission and the vehicle frame it Between；
    Suspension system, each axle assembly are connected by the suspension system with the vehicle frame.
  2. 2. dumper according to claim 1, it is characterised in that the suspension system includes interval in left-right direction and opens up Two elastic components put, the both ends of each elastic component are connected with two axle housing components respectively, each elastic component It is respectively positioned on the top of two axle housing components.
  3. 3. dumper according to claim 2, it is characterised 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 positioned at two vehicle bridge it is total Into centre, it is each attached in the middle part of each elastic component on the balance shaft assembly.
  4. 4. dumper according to claim 3, it is characterised in that the elastic component includes at least one layer of leaf spring.
  5. 5. dumper according to claim 4, it is characterised in that the middle part of the elastic component is fixed on by U-bolts On the balance shaft assembly.
  6. 6. dumper according to claim 3, it is characterised in that the suspension system further includes to be spaced apart along the vertical direction The the first distance rod group and the second distance rod group set；
    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. 7. dumper according to claim 6, it is characterised 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 by the first distance rod vehicle frame mounting base with the vehicle frame, the first distance rod vehicle frame mounting base is fixed on On the vehicle frame and positioned at the centre of two axle housing components.
  8. 8. dumper according to claim 7, it is characterised in that one end of each first distance rod is respectively positioned on same The inner side of the other end of first distance rod.
  9. 9. dumper according to claim 7, it is characterised in that one end of each first distance rod passes through first Distance rod axle housing mounting base is connected with the middle part of the corresponding axle housing component, and the first distance rod axle housing mounting base is fixed on The middle part of the axle housing component and the top for being located at the axle housing component.
  10. 10. dumper according to claim 9, it is characterised in that each first subgroup includes two described the One distance rod, the first distance rod axle housing mounting base corresponding with first subgroup is two, and two described first push away Power bar axle housing mounting base is integrally formed；
    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. 11. dumper according to claim 7, it is characterised in that the first distance rod vehicle frame mounting base is fixed on institute State the inner side of vehicle frame.
  12. 12. dumper according to claim 6, it is characterised 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 by the second distance rod balance shaft mounting base with the balance shaft assembly, 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 second axle assembly with the end of the balance shaft assembly.
  13. 13. dumper according to claim 12, it is characterised in that one end of each second distance rod is respectively positioned on together The inner side of the other end of one second distance rod.
  14. 14. dumper according to claim 12, it is characterised in that one end of each second distance rod is by the Two distance rod axle housing mounting bases are connected with the end of the corresponding axle housing component, and the second distance rod axle housing mounting base is fixed In the end of the axle housing component and positioned at the lower section of the corresponding axle housing component.
  15. 15. dumper according to claim 14, it is characterised in that each second subgroup is pushed away including two second Power bar, the second distance rod axle housing mounting base corresponding with second subgroup are two；
    The both ends of the axle housing component corresponding with second subgroup are respectively fixed with is spaced apart what is set 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. 16. dumper according to claim 6, it is characterised in that each first distance rod and each described second The both ends of distance rod are respectively provided with ball articulated structure.
  17. 17. dumper according to claim 1, it is characterised in that two axle assemblies are the electric drive axle Assembly, and it is another described electric drive axle assembly that two electric drive axle assemblies, which are arranged to an electric drive axle assembly, Formed after rotating 180 ° perpendicular to axis in the front-back direction.
  18. 18. dumper according to claim 17, it is characterised in that further include：Two electric machine controllers, two electricity Machine controller and two electric drive axle assemblies correspond, and each electric machine controller individually control it is corresponding described The power motor of electric drive axle assembly.
  19. 19. dumper according to claim 1, it is characterised in that one in two axle assemblies is electric drive Axle assembly, another in two axle assemblies is driven bridge.
  20. 20. according to the dumper any one of claim 1-19, it is characterised in that the power motor includes actively cold But structure, the active cooling structure include the coolant circulation passage for power motor cooling.
  21. 21. dumper according to claim 20, it is characterised in that the active cooling structure further includes coolant driving Part, the coolant actuator are located in the coolant circulation passage to drive coolant in the coolant circulation passage Flowing.
  22. 22. according to the dumper any one of claim 1-19, it is characterised in that the axle housing component includes：
    Axle housing, the middle part of the axle housing have the unlimited differential mechanism accommodation space of both sides of the face；
    Shell cover, the shell cover are removably mounted on the axle housing to close a unlimited side at the middle part of the axle housing Face, the case of transmission are fixed on unlimited another side end face at the middle part of the axle housing.
  23. 23. dumper according to claim 22, it is characterised in that the shell cover is connected through a screw thread part and removably pacifies On the axle housing.
  24. 24. dumper according to claim 23, it is characterised in that multiple bolts are further included, on the case of transmission Equipped with multiple threaded holes, the axle housing is equipped with and multiple threaded holes multiple vias correspondingly, multiple bolts Corresponded with multiple vias, each bolt is fixed in the corresponding threaded hole through the corresponding via The case of transmission to be fixed on unlimited another side end face at the middle part of the axle housing.
  25. 25. according to the dumper any one of claim 1-19, it is characterised in that the both ends difference of the axle housing component Two axle tubes are welded with, the axle case assy further includes two hub assemblies, and each hub assembly can turn It is installed on dynamicly accordingly on the axle tube, two axle tubes are set in two semiaxis correspondingly Outside.
  26. 26. dumper according to claim 25, it is characterised in that further include two hub reduction gears, two wheels Side reducer and two hub assemblies correspond, the input terminal and the corresponding semiaxis of each hub reduction gear It is connected, the output terminal of each hub reduction gear is connected with the corresponding hub assembly.
  27. 27. dumper according to claim 26, it is characterised in that the hub reduction gear is planetary reducer, The planetary reducer includes sun gear, planetary gear and ring gear, and the sun gear is fixed on the semiaxis, the row Star-wheel is engaged with the sun gear and the ring gear respectively, and the ring gear is fixed on corresponding described by internal tooth coil support On axle tube.
  28. 28. dumper according to claim 27, it is characterised in that the internal tooth coil support is engaged with the ring gear, The planetary reducer further includes baffle ring, and the baffle ring is diametrically folded in the internal tooth coil support and the ring gear Between.
  29. 29. dumper according to claim 28, it is characterised in that the axle case assy further includes two brakes and two A brake mounting board, two brakes and two hub assemblies correspond, two brake mounting boards It is respectively welded and is fixed on the both ends of the axle housing component, and two brakes is connected through a screw thread part correspondingly It is fixed on two brake mounting boards, and the brake drum of two brakes is fixed on described in two correspondingly On hub assembly.
  30. 30. dumper according to claim 29, it is characterised in that further include and corresponded with two hub assemblies Two groups of axial limiting parts, each internal tooth coil support is set in outside the corresponding axle tube by spline structure, Axial limiting part described in every group includes stop nut and locking gasket, and the stop nut and the locking gasket are set in The corresponding axle tube is outer and the stop nut and the corresponding half-axis sleeve screw thread connect with will it is corresponding described in Internal tooth coil support and the corresponding hub assembly are pressed on the braking of the locking gasket with the corresponding brake Between drum.
  31. 31. according to the dumper any one of claim 1-19, it is characterised in that the axle case assy further includes differential Latch mechanism, the differential-speed lock mechanism is installed on the speed changer, and is arranged in two semiaxis optionally One with the differential casing locking of the differential mechanism.
  32. 32. according to the dumper any one of claim 1-19, it is characterised in that the speed changer is moved including speed changer Power input unit and transmission power output section, the transmission power input unit and the motor output shaft of the power motor are direct It is connected, the transmission power output section is configured and adapted to the power output in the transmission power input unit to institute State differential mechanism.
  33. 33. dumper according to claim 32, it is characterised in that the electric power assembly further includes power takeoff, described Power takeoff includes power takeoff input terminal and power takeoff output terminal, and the power takeoff input terminal is arranged to defeated with the transmission power Enter at least one linkage in portion and the transmission power output section, the power takeoff output terminal is arranged to optionally connect The power takeoff input terminal is closed to export the power from the power takeoff input terminal, the power takeoff is fixed on the speed changer On housing.
  34. 34. dumper according to claim 33, it is characterised in that the power takeoff input terminal includes：Power take-off gear, institute Stating power takeoff output terminal includes power taking axis, and the power take-off gear empty set is on the power taking axis, and the power takeoff further includes Power taking synchronizer, the power taking synchronizer are arranged to the optionally synchronous power take-off gear and the power taking axis.
  35. 35. dumper according to claim 32, it is characterised in that the multiple transmission shaft includes：
    First axle, is fixed with input gear in the first axle, the first axle is connected with the motor output shaft；
    Second axis, is fixed with idle pulley on second axis, the idle pulley is engaged with the input gear；
    3rd axis, the 3rd axis include the first shaft part and the second shaft part being coaxially disposed, and second shaft part is arranged to optional Engaged with first shaft part to selecting property, first gear, the first gear and the idle pulley are fixed with first shaft part Engage, multiple gear driven gears are set with second shaft part；
    4th axis, is fixed with second gear and multiple gear driving gears on the 4th axis, the second gear and described the One gear engages, and multiple gear driving gears engage correspondingly with multiple gear driven gears；
    Wherein, the first axle, the input gear, second axis, the idle pulley form the transmission power input unit； 3rd axis, the first gear, the 4th axis, the second gear, multiple gear driving gears and multiple institutes State gear driven gear and form the transmission power output section.
  36. 36. dumper according to claim 35, it is characterised in that it is driven that the multiple gear driven gear includes a gear Gear, two gear driven gears and three gear driven gears；
    The multiple gear driving gear include with described one gear driven gear engage one gear driving gear, with described two keep off from The two gear driving gear of moving gear engagement and the three gear driving gears engaged with described three gear driven gears；
    The transmission power output section further includes：
    One or four gear synchronizers, one or the four gear synchronizer are arranged to optionally that first shaft part and a gear is driven One in gear engages with second shaft part；
    Two or three gear synchronizers, two or the three gear synchronizer are arranged to described two gear driven gears and three gear optionally One in driven gear engages with second shaft part.
  37. 37. dumper according to claim 36, it is characterised in that output gear is further fixed on second shaft part, The output gear positioned at described one gear driven gear and it is described two gear driven gear between, the output gear be suitable for it is described The differential mechanism driven gear engagement of differential mechanism.
  38. 38. dumper according to claim 34, it is characterised in that the power take-off gear is directly nibbled with the second gear Close transmission.
  39. 39. dumper according to claim 35, it is characterised in that first shaft part is supported on the case of transmission On, one end of close first shaft part of second shaft part is supported on first shaft part.
  40. 40. dumper according to claim 35, it is characterised in that the input gear, the idle pulley, first tooth Wheel, the second gear, multiple gear driving gears and multiple gear driven gears are angular gear.
  41. 41. dumper according to claim 35, it is characterised in that the first axle and the motor of the power motor are defeated Shaft is connected by spline structure or shaft coupling.
  42. 42. according to the dumper any one of claim 1-19, it is characterised in that the electric power assembly further includes electricity Liquid gearshift execution module, the electro-hydraulic gearshift execution module are used to control the speed changer and are installed on the case of transmission On.
  43. 43. dumper according to claim 1, it is characterised in that the suspension arrangement includes two dampers, two institutes State the left and right sides that damper is symmetricly set on the case of transmission.
CN201511030807.0A 2015-12-31 2015-12-31 Dumper Active CN105984278B (en)

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CN201511030807.0A CN105984278B (en) 2015-12-31 2015-12-31 Dumper
PCT/CN2016/112653 WO2017114417A1 (en) 2015-12-31 2016-12-28 Dump truck

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WO2017114422A1 (en) * 2015-12-31 2017-07-06 Byd Company Limited Vehicle and electric drive axle assembly for vehicle
WO2017114420A1 (en) * 2015-12-31 2017-07-06 Byd Company Limited Vehicle and drive axle unit for vehicle
WO2017114417A1 (en) * 2015-12-31 2017-07-06 Byd Company Limited Dump truck
CN106740098A (en) * 2016-11-24 2017-05-31 深圳市沃特玛电池有限公司 Power assembly
EP3372429A1 (en) * 2017-03-07 2018-09-12 Volvo Construction Equipment AB A working machine axle arrangement and working machine
US20220314956A1 (en) * 2021-03-30 2022-10-06 Komatsu America Corp. Vehicle With Antilock Braking System

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CN201881893U (en) * 2010-11-29 2011-06-29 李祥 Integral differential motor assembly used on electric vehicle
WO2012082022A1 (en) * 2010-12-17 2012-06-21 Volvo Lastvagnar Ab Frame-steered vehicle
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
CN102490582A (en) * 2011-12-21 2012-06-13 南京南汽专用车有限公司 Symmetrically-arranged electrically-driven automobile chassis and driving control method thereof
CN202448707U (en) * 2012-01-11 2012-09-26 长沙市比亚迪汽车有限公司 Stabilizer bar
CN103935255B (en) * 2013-04-17 2016-09-14 济南田中工贸有限公司 Electric drive highway traction motor-car
CN205468311U (en) * 2015-12-31 2016-08-17 比亚迪股份有限公司 Dump truck

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