CN101348075A - Drive axle of motor drive - Google Patents
Drive axle of motor drive Download PDFInfo
- Publication number
- CN101348075A CN101348075A CNA2008100215262A CN200810021526A CN101348075A CN 101348075 A CN101348075 A CN 101348075A CN A2008100215262 A CNA2008100215262 A CN A2008100215262A CN 200810021526 A CN200810021526 A CN 200810021526A CN 101348075 A CN101348075 A CN 101348075A
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- Prior art keywords
- motor
- platen
- gear
- friction lining
- main friction
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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- 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
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
- Retarders (AREA)
Abstract
The invention relates to a driving axle of a drive motor, in particular to a driving axle of an electric vehicle; the driving axle essentially comprises a motor, a differential, a first planetary gear reducer and a second planetary gear reducer. The driving axle is characterized in that the motor is arranged on the middle of the driving axle; one end of the motor is coaxially connected with the first planetary gear reducer and the other end is coaxially and sequentially connected with the differential and the second planetary gear reducer; a braking device is arranged between the differential and the second planetary gear reducer. The driving axle can save height space, achieve safe and reliable performance by integrating a driving braking system and a parking braking system into a whole, reduce the radial dimension of the reducer and ensure lower gravity center and more stable operation of the driving axle.
Description
Technical field
The present invention relates to a kind of motor-driven drive axle, specifically the drive axle of elec. vehicle.
Background technology
The function of elec. vehicle drive axle is that the dynamic retarding from motor is passed to the left and right driving wheel.Japanese Unexamined Patent Publication No 2001-039174 discloses a kind of output driving device of electrical motor, and the motor-driven power in this device is delivered to drive wheel by gear, intermediate gear, input shaft, differentiator, output shaft; The axis of the axis of motor and output shaft is arranged in parallel in this device, and just motor and diff are arranged in parallel, and motor is arranged in the top of diff.The such layout of motor certainly will increase this actuating device size in height, when this device is used for electri forklift, the height of operator's compartment is increased, thereby cause the center of gravity of fork truck too high, the poor stability of car load.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, can save height space thereby provide a kind of, service braking system and emergency brake system are integrated, and be safe and reliable; Can reduce the radial dimension of retarder, and make the center of gravity of drive axle lower, move motor-driven more stably drive axle.
According to technical scheme provided by the invention, it mainly comprises motor, diff, first epicyclic reduction gear and second epicyclic reduction gear, feature is the middle part that motor is arranged in drive axle, motor one end is connected with first epicyclic reduction gear is coaxial, the other end with diff, second epicyclic reduction gear is coaxial is linked in sequence, and is provided with brake equipment between the described diff and second epicyclic reduction gear.
The right-hand member of the motor shaft on the described motor is connected by spline with the differential gear box of diff; Motor shaft inside is provided with transmission shaft; Described transmission shaft end is connected with an axle side gear of diff, and second half shaft gear of described diff is connected with the sun wheel shaft of second epicyclic reduction gear; Transmission shaft passes motor shaft left and is connected with the sun wheel of first epicyclic reduction gear.
Be provided with dividing plate in the electric motor end cap on the described motor, dividing plate is divided into two chambers with electric motor end cap, has centre hole on the dividing plate.
Described brake equipment is included in piston, first platen, big friction lining, second platen, secondary friction gear, main friction gear and the reaction plate that axial order is provided with; Described piston is arranged in the inner chamber of electric motor end cap, and first platen is sleeved in the piston, between first platen and second platen big friction lining is set, the engagement that matches of secondary friction gear and main friction gear; Reaction plate is axially fixed in the internally toothed annulus of second epicyclic reduction gear.
Described first platen, one end is provided with two boss, and the other end is provided with flange, offers three grooves on the described flange, offers through hole in the groove.
Described second platen is to be provided with the hollow disk that protrudes axle journal, and the outside face of described axle journal is provided with spline, and the inside face of its axle journal is provided with spline.
Described secondary friction gear comprises secondary friction lining and secondary friction disc, and the endoporus of described secondary friction lining is provided with keyway, and the excircle of described secondary friction disc is provided with crown, and the arranged outside of described secondary friction disc has the braking gear ring.
Described main friction gear comprises the 3rd platen, the first main friction lining, the second main friction lining, reaches main friction disc; Described the 3rd platen is to be provided with the hollow disk that protrudes axle journal, and the outside face of described axle journal is provided with spline, and the inside face of its axle journal is provided with spline; The endoporus of described main friction disc is provided with keyway, the engagement that matches of the spline of the keyway of main friction disc endoporus and the 3rd platen axle journal; The second main friction lining is arranged between the 3rd platen and the main friction disc, the first main friction lining is arranged between main friction disc and the reaction plate, the excircle of the described first main friction lining, the second main friction lining is respectively equipped with crown, the engagement that matches of the crown of the first main friction lining, the second main friction lining and the internally toothed annulus of second epicyclic reduction gear.
Be provided with endplay between the disk of the disk of described the 3rd platen and second platen.
Described secondary friction lining, secondary friction disc and main friction lining, main friction disc be provided with two the cover or two the cover more than.
Described first epicyclic reduction gear and second epicyclic reduction gear are respectively two-stage reduction gear.
Compared with the prior art the present invention has the following advantages:
1. motor of the present invention, diff and epicyclic reduction gear arrange that on an axis the height dimension of drive axle is little, has saved height space;
2. brake equipment is built in the end cap of motor, compact conformation;
3. shift fork, first platen, big friction lining, second platen, secondary friction gear, main friction gear and reaction plate are formed emergency brake system; Piston, first platen, big friction lining, second platen, secondary friction gear, main friction gear and reaction plate are formed service braking system; Service braking system and emergency brake system are integrated, and be simple in structure, safe and reliable;
4. adopt the secondary planetary gear retarder to slow down, under the certain situation of reduction ratio, further reduced the radial dimension of retarder, make the center of gravity of drive axle lower, move more steady.
Description of drawings
Fig. 1 is a structure cutaway view of the present invention.
Fig. 2 is the structure cutaway view of first epicyclic reduction gear among the present invention.
Fig. 3 is the structure cutaway view of second epicyclic reduction gear among the present invention.
Fig. 4 is for the structure cutaway view of the part of the electric motor end cap among the present invention, comprising diff and brake equipment.
Fig. 5 is the outside drawing of Fig. 4.
Fig. 6 is the A-A cutaway view among Fig. 5.
Fig. 7 cooperates scheme drawing for the shift fork among the present invention with first platen.
Fig. 8 is the shift fork schematic perspective view among Fig. 7.
Fig. 9 is the first platen schematic perspective view among Fig. 7.
Figure 10 is the schematic perspective view of first another angle of platen among Fig. 7.
Figure 11 is the brake equipment three-dimensional exploded view among the present invention.
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Fig. 1～shown in Figure 11 comprises: drive axle 1, the first epicyclic reduction gear 2, motor 3, diff 4, brake equipment 5, the second epicyclic reduction gears 6, wheel hub 7, center shaft 8, the second epicyclic reduction gear housings 9, secondary planetary gear mechanism 10, sun wheel shaft 11, electric motor end cap 12, axle side gear 13, dividing plate 14, axle side gear 15, differential gear box 16, electric machine casing 17, motor stator 18, rotor 19, motor shaft 20, transmission shaft 21, sun wheel 22, secondary planetary gear mechanism 23, the first epicyclic reduction gear housing 24, center shaft 25, wheel hub 26, seal ring 27, internally toothed annulus 28, secondary planet mechanism 29, one-level planetary mechanism 30, bolt 31, the first main friction linings 32, reaction plate 33, internally toothed annulus 34, one-level planetary mechanism 35, secondary planet mechanism 36, bolt 37, seal ring 38, caging bolt 39, the first platens 40, stop collar 41, big friction lining 42, the second platens 43, the three platens 44, the second main friction lining 45, main friction disc 46, back-up ring 47, braking gear ring 48, secondary friction lining 49, secondary friction disc 50, piston 51, shift fork 52, handle 53, shift fork end cap 54, adjustable bolt 55, adjustment nut 56, projection 57, boss 58, flange 59, cylinder 60, groove 61, through hole 62 etc.
As shown in Figure 1, motor-driven drive axle 1 comprises motor 3, diff 4, first epicyclic reduction gear 2, is the left lateral star gear reducer in the present embodiment, and second epicyclic reduction gear 6 is the right lateral star gear reducer in the present embodiment.One end of motor 3 and 2 coaxial connections of first epicyclic reduction gear, the other end of this motor 3 and diff 4, second epicyclic reduction gear, 6 coaxial being linked in sequence.
Described motor 3 is arranged in the middle part of drive axle 1, and it comprises electric machine casing 17, motor stator 18 and rotor 19.The electric machine casing 17 double housings of doing drive axle 1.Rotor 19 is assemblied on the motor shaft 20, and motor stator 18 is installed on the rotor 19.Described motor shaft 20 is hollow, and its inside is provided with transmission shaft 21.
The left side end cap and the electric machine casing 17 of described motor 3 are one-body molded, the right side of motor 3 is provided with electric motor end cap 12, be provided with dividing plate 14 in the electric motor end cap 12, dividing plate 14 is divided into two chambers with electric motor end cap 12, and diff 4 and brake equipment 5 all are arranged in the lateral compartments of electric motor end cap 12.Described dividing plate 14 has centre hole, and the bearing that passes on left of differential gear box 16 is bearing in this centre hole.The differential gear box 16 of the right-hand member of motor shaft 20 and diff 4 is connected by spline.Transmission shaft 21 ends of this side are connected with the axle side gear 15 of diff 4, and second half shaft gear 13 of described diff 4 is connected with the sun wheel shaft 11 of second epicyclic reduction gear 6.
The described electric motor end cap 12 and the second epicyclic reduction gear housing 9 are integral by bolts assemblies, and the seal ring 38 that seals also is housed at its face of joint.In the second epicyclic reduction gear housing 9, secondary planetary gear mechanism 10 is housed.Secondary planetary gear mechanism 10 comprises internally toothed annulus 34, one-level planetary mechanism 35 and secondary planet mechanism 36.The center shaft 8 of secondary planet mechanism 36 is connected with right wheel hub 7 splines.Right wheel hub 7 is fixed on the right drive wheel (not shown) by bolt 37.
Described transmission shaft 21 passes core motor axle 20 left and is connected with the sun wheel 22 of first epicyclic reduction gear 2.
As shown in Figure 2, the described electric machine casing 17 and the first epicyclic reduction gear housing 24 are integral by bolts assemblies, and the seal ring 27 that seals also is housed at its face of joint.In the first epicyclic reduction gear housing 24, secondary planetary gear mechanism 23 is housed.Secondary planetary gear mechanism 23 comprises internally toothed annulus 28, one-level planetary mechanism 30 and secondary planet mechanism 29.The center shaft 25 of secondary planet mechanism 29 is connected with left wheel hub 26 splines.Left wheel hub 26 is fixed on the left driving wheel (not shown) by bolt 31.
Utilize transmission shaft 21 that the transmission device of motor 3 and arranged on left and right sides is coupled together, form whole transmission system.The output torque of motor 3 is passed to the drive wheel of drive axle 1 and arranged on left and right sides by the transmission device of and arranged on left and right sides.The effect of diff 4 is to solve the drive wheel of and arranged on left and right sides in the differential problem that turns in travelling.
Be provided with brake equipment 5 between the described diff 4 and second epicyclic reduction gear 6.
As Fig. 3～shown in Figure 4, brake equipment 5 is included in piston 51, first platen 40, big friction lining 42, second platen 43, secondary friction gear, main friction gear and the reaction plate 33 that axial order is provided with.
Described piston 51 is arranged in the inner chamber of electric motor end cap 12, and this piston 51 is connected with the hydraulic efficiency gear (not shown), can move vertically under the effect of hydraulic efficiency gear.
As Fig. 5～shown in Figure 10, described first platen 40 is a cylinder 60, is enclosed within versatilely in the piston 51, and an end of cylinder 60 is provided with two boss 58, and this boss 58 leans with the projection 57 of shift fork 52.Shift fork 52 is arranged on the shell of electric motor end cap 12 rotationally, and an end of shift fork 52 is fixed in the blind hole in the electric motor end cap 12, and its other end is fixed in the through hole of electric motor end cap 12 by shift fork end cap 54; This end of shift fork 52 also is equipped with handle 53; One end of handle 53 is provided with adjustable bolt 55 and adjustment nut 56, can adjust the rotational angle of handle 53 by adjustable bolt 55 and adjustment nut 56.Handle 53 rotates and drives shift fork 52 rotations, and the rotation of shift fork 52 can promote first platen 40 and move axially.The other end of the cylinder 60 of first platen 40 is provided with flange 59, this flange 59 cooperates with the end face of above-mentioned piston 51, have three grooves 61 on the flange 59, also have through hole 62 in the groove 61, stop collar 41 is installed in this through hole 62, caging bolt 39 passes stop collar 41 and is connected on the electric motor end cap 12, can adjust the axial displacement of first platen 40 by stop collar 41, caging bolt 39.
As shown in Figure 4, between described first platen 40 and second platen 43 big friction lining 42 is set, the engagement that matches of secondary friction gear and main friction gear, friction lining 42 is entrenched in the internally toothed annulus 34 of second epicyclic reduction gear 6 by the crown that is arranged on its excircle greatly.
Described second platen 43 is for to have the hollow disk that protrudes axle journal, and the outside face of its axle journal is provided with spline, and the inside face of its axle journal is provided with spline, the spline of second platen, 43 axle journals and the spline fitted of differential gear box 16.
As shown in figure 11, described secondary friction gear comprises secondary friction lining 49 and secondary friction disc 50.Braking gear ring 48 also is equipped with in the outside of secondary friction disc 50, and braking gear ring 48 is by back-up ring 47 axial location.The endoporus of secondary friction lining 49 has keyway, and the keyway of secondary friction lining 49 endoporus cooperates with the sun wheel shaft 11 of second epicyclic reduction gear 6; The excircle of secondary friction disc 50 has crown.
Described main friction gear comprises the 3rd platen 44, first main friction lining 32, second main friction lining 45 and the main friction disc 46.The 3rd platen 44 is for to have the hollow disk that protrudes axle journal, and the outside face of its axle journal is provided with spline, and the inside face of its axle journal is provided with spline.The crown of secondary friction disc 50 cooperates with the spline of the 3rd platen 44 axle journals.The spline fitted of the spline of the 3rd platen 44 axle journals and second platen, 43 axle journals.Between the disk of the disk of the 3rd platen 44 and second platen 43 endplay is set.
The excircle of described first main friction lining 32, the second main friction lining 45 has crown, the engagement that matches of the crown of first main friction lining 32, the second main friction lining 45 and the internally toothed annulus 34 of second epicyclic reduction gear 6, the second main friction lining 45 are that both surface friction sheet, the first main friction lining 32 are the single-sided friction sheet.The second main friction lining 45 is arranged between the 3rd platen 44 and the main friction disc 46, and the first main friction lining 32 is arranged between main friction disc 46 and the reaction plate 33; The endoporus of main friction disc 46 has keyway, the engagement that matches of the spline of the keyway of main friction disc 46 endoporus and the 3rd platen 44 axle journals.Reaction plate 33 is axially fixed in the internally toothed annulus 34 of second epicyclic reduction gear 6.
Described secondary friction lining 49, secondary friction disc 50 and the second main friction lining 45, main friction disc 46 be provided with two the cover or two the cover more than.
Braking during standstill: when angle of handle 53 swings, drive and 52 swings of its fixing shift fork, the projection 57 of shift fork 52 and the boss 58 of first platen 40 lean, and promote first platen 40 and axially move right, and compress big friction lining 42, have reached the purpose of braking.When handle 53 sets back, by pull back spring, make first platen 40 to moving to left, braking force is eliminated.
Service brake: when the pedal brake pressing plate, brake press plate compresses the push rod of master brake cylinder, force the brake solution of master cylinder to flow out outward, enter the oil pocket of piston 51, force piston 51 to move right, and drive first platen 40 and move right and compress big friction lining 42, thereby reach the purpose of brake, when pin left brake press plate, the high pressure brake solution refluxed, and braking force is eliminated.
The characteristics of service brake of the present invention and braking during standstill are to brake from inside to outside, and braking force changes from small to big, brake soft, driver's operation safety, comfortable.
Concrete braking procedure is as follows: second platen 43 is connected with differential gear box 16, and differential gear box 16 drives 43 rotations of second platen, and by the connection of invoice serration, second platen 43 drives 44 rotations of the 3rd platen.On the other hand, the axle side gear in the differential gear box 16 13 drives sun wheel shaft 11.Invoice serration is processed in the centre of sun wheel shaft 11, is connected with secondary friction lining 49 female spliness that copper-based material or paper base material are made.And invoice serration is processed in secondary friction disc 50 outsides, and circle is processed in the inside, leave certain interval with spline place in the middle of the sun wheel shaft 11, and the spline of outside is connected with the female splines of the 3rd platen 44.The 3rd platen 44, secondary friction disc 50, secondary friction lining 49, secondary friction disc 50, secondary friction lining 49, secondary friction disc 50 cyclic overlaps have been constituted.
When piston 51, when first platen 40 moves, motor 3 has had a power failure, motor shaft 20 idle running, move by big friction lining 42, force second platen 43 also to move, second platen 43 and the 3rd platen 44 rotate simultaneously, but second platen 43 does not contact with the 3rd platen 44 sides, the secondary friction lining 49 of second platen 43 and secondary friction disc 50 are just fitted, 44 rotations of the 3rd platen have been driven, make second platen 43, the 3rd platen 44, secondary friction lining 49, secondary friction disc 50, sun wheel shaft 11 fuses, when 44 continuation of the 3rd platen are mobile, drive main friction lining 45, fit tightly between main friction disc 46 and the reaction plate 33, produced friction force, sun wheel shaft 11 is stopped operating, thereby reach the purpose of brake.
The working process of this drive axle 1 is: when motor 3 energising rotations, hollow motor shaft 20 drives differential gear box 16 rotations, and differential gear box 16 drives 15,13 rotations of two axle side gears, and an axle side gear 15 drives transmission shaft 21 rotations, and transmission shaft 21 drives sun wheel 22 rotations, and another axle side gear 13 drives 11 rotations of opposite side sun wheel shaft.Both sides reach drive wheel by same secondary planetary gear mechanism 23,10 deceleration transmission.When sun wheel 22 and sun wheel shaft 11 rotations, driven the primary planet pinion transmission, and the transmission of primary planet pinion drives the rotation of primary planet carrier.The secondary center wheel that secondary planetary gear slows down is equipped with by spline in the primary planet carrier center, same reason, and the secondary center wheel drives the secondary planetary gear rotation, and the rotation of the gear driven secondary planetary gear frame of secondary planet.The external diameter of the center shaft 25,8 of secondary planetary gear frame is processed into involute outer spline, combines with the female splines of wheel hub 26,7, drives the drive wheel rotation, moves ahead thereby order about vehicle.
Claims (10)
1, a kind of motor-driven drive axle, comprise motor (3), diff (4), first epicyclic reduction gear (2) and second epicyclic reduction gear (6), it is characterized in that motor (3) is arranged in the middle part of drive axle (1), motor (3) one ends and coaxial connection of first epicyclic reduction gear (2), the other end and diff (4), coaxial being linked in sequence of second epicyclic reduction gear (6) are provided with brake equipment (5) between described diff (4) and second epicyclic reduction gear (6).
2, motor-driven drive axle according to claim 1 is characterized in that the right-hand member of the motor shaft (20) on the described motor (3) is connected by spline with the differential gear box (16) of diff (4); Motor shaft (20) inside is provided with transmission shaft (21); Described transmission shaft (21) end is connected with an axle side gear (15) of diff (4), and second half shaft gear (13) of described diff (4) is connected with the sun wheel shaft (11) of second epicyclic reduction gear (6); Transmission shaft (21) passes motor shaft (20) and is connected with the sun wheel (22) of first epicyclic reduction gear (2).
3, motor-driven drive axle according to claim 1 is characterized in that being provided with dividing plate (14) in the electric motor end cap (12) on the described motor (3), and dividing plate has centre hole on (14), and electric motor end cap (12) is divided into two chambers.
4, motor-driven drive axle according to claim 1 is characterized in that described brake equipment (5) comprises piston (51), first platen (40), big friction lining (42), second platen (43), secondary friction gear, main friction gear and the reaction plate (33) of axial order setting; Piston (51) is arranged in the inner chamber of electric motor end cap (12), and first platen (40) is sleeved in the piston (51), between first platen (40) and second platen (43) big friction lining (42) is set, the engagement that matches of secondary friction gear and main friction gear; Reaction plate (33) is axially fixed in the internally toothed annulus (34) of second epicyclic reduction gear (6).
5, motor-driven drive axle according to claim 4, it is characterized in that described first platen (40) one ends are provided with boss (58), the other end is provided with flange (59), offers groove (61) on the described flange (59), offers through hole (62) in the groove (61).
6, motor-driven drive axle according to claim 4 is characterized in that described second platen (43) for being provided with the hollow disk that protrudes axle journal, and the outside face of described axle journal is provided with spline, and the inside face of its axle journal is provided with spline.
7, motor-driven drive axle according to claim 4, it is characterized in that described secondary friction gear comprises secondary friction lining (49) and secondary friction disc (50), the endoporus of described secondary friction lining (49) is provided with keyway, the excircle of described secondary friction disc (50) is provided with crown, and the arranged outside of described secondary friction disc (50) has braking gear ring (48).
8, motor-driven drive axle according to claim 4 is characterized in that described main friction gear comprises the 3rd platen (44), the first main friction lining (32), the second main friction lining (45) and main friction disc (46); Described the 3rd platen (44) is for being provided with the hollow disk that protrudes axle journal, and the outside face of described axle journal is provided with spline, and the inside face of its axle journal is provided with spline; The endoporus of described main friction disc (46) is provided with keyway, the engagement that matches of the spline of the keyway of main friction disc (46) endoporus and the 3rd platen (44) axle journal; The second main friction lining (45) is arranged between the 3rd platen (44) and the main friction disc (46), the first main friction lining (32) is arranged between main friction disc (46) and the reaction plate (33), the excircle of the described first main friction lining (32), the second main friction lining (45) is respectively equipped with crown, the engagement that matches of the crown of the first main friction lining (32), the second main friction lining (45) and the internally toothed annulus (34) of second epicyclic reduction gear (6).
9, motor-driven drive axle according to claim 8 is characterized in that being provided with endplay between the disk of the disk of described the 3rd platen (44) and second platen (43).
10, motor-driven drive axle according to claim 7, it is characterized in that described secondary friction lining (49), secondary friction disc (50), the second main friction lining (45) and main friction disc (46) be provided with two the cover or two the cover more than.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100215262A CN101348075B (en) | 2008-07-30 | 2008-07-30 | Drive axle of motor drive |
| PCT/CN2009/000576 WO2010012151A1 (en) | 2008-07-30 | 2009-05-25 | A driving bridge driven by a motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100215262A CN101348075B (en) | 2008-07-30 | 2008-07-30 | Drive axle of motor drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348075A true CN101348075A (en) | 2009-01-21 |
| CN101348075B CN101348075B (en) | 2012-10-31 |
Family
ID=40267107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100215262A Expired - Fee Related CN101348075B (en) | 2008-07-30 | 2008-07-30 | Drive axle of motor drive |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101348075B (en) |
| WO (1) | WO2010012151A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010012151A1 (en) * | 2008-07-30 | 2010-02-04 | 无锡开普动力有限公司 | A driving bridge driven by a motor |
| CN102887063A (en) * | 2011-07-22 | 2013-01-23 | 邦飞利减速器股份有限公司 | Reducer with integral electric motor for electric vehicles |
| CN103738166A (en) * | 2013-12-31 | 2014-04-23 | 南车戚墅堰机车车辆工艺研究所有限公司 | Transmission system for electric vehicle |
| CN103917397A (en) * | 2011-11-10 | 2014-07-09 | 丰田自动车株式会社 | Electric drive device for vehicle |
| CN104467275A (en) * | 2014-12-17 | 2015-03-25 | 江麓机电集团有限公司 | Multifunctional integrated electric driver |
| CN104842781A (en) * | 2015-06-17 | 2015-08-19 | 清华大学苏州汽车研究院（相城） | Middle-engine integrated electric bridge with driving force distribution function |
| CN103738166B (en) * | 2013-12-31 | 2016-11-30 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of transmission system for electric vehicle |
| WO2017166910A1 (en) * | 2016-03-28 | 2017-10-05 | 泉州鑫豪工程机械科技有限公司 | Steering drive axle of excavator |
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| US5919109A (en) * | 1996-10-16 | 1999-07-06 | Linde Aktiengesellschaft | Drive axle with planetary gear |
| FR2801010B1 (en) * | 1999-11-15 | 2002-02-01 | Peugeot Citroen Automobiles Sa | TORQUE TRANSMISSION AND CONVERSION DEVICE USING A GEARBOX AND TWO CLUTCHES |
| DE20010563U1 (en) * | 2000-06-14 | 2000-10-05 | Ewald Speth Antriebstechnik Gm | Directly driven drive axle with planetary differential gear stage |
| JP2003160089A (en) * | 2001-11-27 | 2003-06-03 | Sanyo Electric Co Ltd | Drive device for vehicle with auxiliary power |
| CN2548836Y (en) * | 2002-04-10 | 2003-05-07 | 武汉理工大学 | Coaxial assembled unitary driving axle for small three or four wheel electric vehicle |
| DE10219921B4 (en) * | 2002-05-03 | 2013-03-28 | Zf Friedrichshafen Ag | Drive axle for electric motor driven vehicles |
| DE10342164B4 (en) * | 2003-09-12 | 2005-10-20 | Gkn Driveline Int Gmbh | transmission assembly |
| CN101348075B (en) * | 2008-07-30 | 2012-10-31 | 无锡开普动力有限公司 | Drive axle of motor drive |
| CN201257895Y (en) * | 2008-07-30 | 2009-06-17 | 无锡开普动力有限公司 | Motor-driven drive axle |
-
2008
- 2008-07-30 CN CN2008100215262A patent/CN101348075B/en not_active Expired - Fee Related
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2009
- 2009-05-25 WO PCT/CN2009/000576 patent/WO2010012151A1/en active Application Filing
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| WO2017166910A1 (en) * | 2016-03-28 | 2017-10-05 | 泉州鑫豪工程机械科技有限公司 | Steering drive axle of excavator |
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| CN108248368A (en) * | 2018-03-13 | 2018-07-06 | 上海振华重工(集团)股份有限公司 | The driving device and loading hoisting conveyer of rubber-tyred loading hoisting conveyer |
| CN108674162A (en) * | 2018-05-31 | 2018-10-19 | 汽解放汽车有限公司 | A kind of axle assembly of Dual-motors Driving |
| CN108825749A (en) * | 2018-06-06 | 2018-11-16 | 珠海市万顺睿通科技有限公司 | A kind of differential mechanism for water treatment facilities |
| CN109130844A (en) * | 2018-09-11 | 2019-01-04 | 杜德术 | A kind of automobile multifunctional drive axle |
| CN113839517A (en) * | 2020-06-24 | 2021-12-24 | 广西汽车集团有限公司 | The connection structure used for the connection between the motor and the main reducer of the drive axle |
| CN114576338A (en) * | 2022-05-06 | 2022-06-03 | 沃德传动（天津）股份有限公司 | Driving device of planetary reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101348075B (en) | 2012-10-31 |
| WO2010012151A1 (en) | 2010-02-04 |
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