CN109973590A - A kind of integrated form driving electric bridge - Google Patents
A kind of integrated form driving electric bridge Download PDFInfo
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- CN109973590A CN109973590A CN201910198061.6A CN201910198061A CN109973590A CN 109973590 A CN109973590 A CN 109973590A CN 201910198061 A CN201910198061 A CN 201910198061A CN 109973590 A CN109973590 A CN 109973590A
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- bearing
- gear
- input shaft
- shell
- retarder
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 36
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 11
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 238000000465 moulding Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 1
- 210000002435 tendon Anatomy 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 19
- 238000009434 installation Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005183 dynamical system Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 17
- 210000003205 muscle Anatomy 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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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
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/03—Gearboxes; Mounting gearing therein characterised by means for reinforcing gearboxes, e.g. ribs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02091—Measures for reducing weight of gearbox
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to a kind of integrated forms to drive electric bridge, including shell, motor, retarder and PEU component, the input shaft of retarder and the axis of motor are integrally formed to form input shaft, input shaft is arranged in shell by bearing, input shaft one end is equipped with rotor silicon steel sheet, the other end is equipped with first gear, jackshaft and reducer assemblies are also equipped with by bearing in shell, jackshaft is equipped with second gear, second gear is engaged with first gear, third gear is additionally provided on jackshaft, reducer assemblies are equipped with reducer gear circle, and third gear is engaged with reducer gear circle.The purpose of the present invention is to propose to a kind of motor, retarder and the integrated designs of PEU, dynamical system uses run-in index structure, motor shaft is structure as a whole with reducer input shaft, reducer shell, electric machine casing are structure as a whole, this design can effectively reduce installation space and installation difficulty, the total weight for reducing product, is effectively reduced manufacturing cost.
Description
Technical field
The present invention relates to new-energy automobile drive assembly, drive electric bridge more particularly to a kind of integrated form of new energy vehicle.
Background technique
The drive system of new-energy automobile is generally made of the electric drive axle that motor, retarder, PEU etc. are constituted.Motor will
Electric energy is converted into mechanical energy and provides power for vehicle, then is reduced the revolving speed of motor by retarder, while by the output of motor
Torque amplification, realizes the effect of deceleration torque increase, enables the vehicle in certain range of speeds and runs under certain driving force.
The installation of these three critical components superposition at present causes space big, increases arrangement difficulty, and three component three
It is difficult in supplier (at least 2) work to coordinate, there is multi-interface, installation error is big, and transmission efficiency is low, vibration noise is generated,
Increase extra cost.
In addition, existing driving bridge structure is compact, because its structure designs, lubricating system therein is often unable to fully moisten
In the cavity of sliding corresponding component, especially retarder, lubricant passage way is complicated, is difficult abundant to the bearing of bearing especially input shaft
Lubrication.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of compact-sized, easy for installation, component profits
The good and at low cost integrated form of sliding effect drives electric bridge.
To achieve the goals above, present invention employs technical solutions below:
A kind of integrated form driving electric bridge, including shell, motor and the retarder and the portion PEU that are separately positioned on motor both ends
Part, the shell include retarder first half-shell and motor reducer integral housing, the input shaft and motor of the retarder
Axis be integrally formed to form input shaft, the input shaft by bearing be arranged in shell, described input shaft one end be equipped with rotor
Silicon steel sheet, the other end are equipped with first gear, are also equipped with jackshaft and reducer assemblies, the centre by bearing in the shell
Axis is equipped with second gear, and second gear is engaged with first gear, and third gear, the retarder are additionally provided on the jackshaft
Component is equipped with reducer gear circle, and third gear is engaged with reducer gear circle.
As a preferred solution: the motor reducer integral housing includes integrally formed electric machine casing and retarder
Two half-shells, the electric machine casing is generally cylindric, and axially spaced equipped with multiple tracks radiating ribs, electricity on the outer wall of electric machine casing
Circumferentially arranged with multiple tracks waling on the outer wall of casing body, and waling extends to the second half-shell of retarder, described
Multiple tracks triangle reinforcing rib is additionally provided between electric machine casing lateral wall and the second retarder half-shell end face.
As a preferred solution: being equipped with input axocoel, centre between the second half-shell of the retarder first half-shell and retarder
Axocoel and output axocoel, the intermediate axocoel and output axocoel be used to install be respectively equipped on the end face of bearing the first oil guide groove and
Second oil guide groove, the input shaft cavity segment on retarder first half-shell inner wall are additionally provided with third oil guide groove, the input shaft
It is additionally provided with U-shaped reinforcing rib on the outside of chamber, intermediate axocoel, the opening of U-shaped reinforcing rib is located at housing central section, the second half-shell of retarder
Inwardly protruded bulge is additionally provided between upper output axocoel and inner walls.
As a preferred solution: the both ends of the input shaft are respectively equipped with first bearing, 3rd bearing, in the input shaft
Portion is equipped with second bearing, and the both ends of the jackshaft are respectively equipped with fourth bearing, 5th bearing, and the fourth bearing is located at second
The inside of bearing, and fourth bearing and second bearing are overlapped along axial component, the 5th bearing is located at 3rd bearing
Outside, and 5th bearing and 3rd bearing are overlapped along axial component.
As a preferred solution: bearing installation is additionally provided on the input shaft between rotor silicon steel sheet and first gear
Block, the bearing mounting blocks and input shaft are integrally formed, and the first gear passes through hot jacket, spline fitted or keyway cooperation
Mode is mounted on input shaft.
As a preferred solution: the both ends of the input shaft are respectively to be used to install the first shaft part of first bearing and for pacifying
The second shaft part of 3rd bearing is filled, and the first shaft part and the second shaft part are stepped cylindrical, first shaft part and the second axis
It is equipped with circlip in section, first bearing, 3rd bearing are limited by circlip and step surface respectively.
As a preferred solution: the input shaft of bearing mounting blocks side is third shaft part, the third shaft part is at step
Shape, the first gear include integrally formed gear ring and axle tube, and the gear ring is fixed on third shaft part and gear ring
Side and the step surface of third shaft part offset, and the axle tube is located at the other side of gear ring and stepped, the third axis
It holds and is arranged on axle tube, and 3rd bearing is limited by step surface and circlip.
As a preferred solution: the input shaft of bearing mounting blocks side is third shaft part, the first gear includes one
Body formed gear ring and pipe spreader, gear ring are located at the outer middle side part of pipe spreader, and the pipe spreader is fixed on third shaft part, and axle sleeve
Pipe outer end stepped, the 3rd bearing are arranged on pipe spreader outer end, and are limited by step surface and circlip.
As a preferred solution: bearing installation is additionally provided on the input shaft between rotor silicon steel sheet and first gear
Block, the bearing mounting blocks are mounted on input shaft in such a way that hot jacket, spline fitted or keyway cooperate, first tooth
Wheel is integrally formed with input shaft.
As a preferred solution: being additionally provided with the positioning section of protrusion on the input shaft, the bearing mounting blocks are fixed on positioning
Duan Shang, one end of the bearing mounting blocks is equipped with bulge loop, and the outer wall of bulge loop is equipped with groove, and the bearing mounting blocks are located at convex
The side of ring is the support portion for installing second bearing.
The purpose of the present invention is to propose to a kind of motor, retarder and the integrated design of PEU, dynamical system uses run-in index
Structure, motor shaft are structure as a whole with reducer input shaft, and reducer shell, electric machine casing are structure as a whole, this design can have
Effect reduces installation space and installation difficulty, reduces the total weight of product, manufacturing cost is effectively reduced.In addition, in decelerating through motor
The bearing mounting surface for the cavity that device integral housing is formed between the second half-shell of retarder is equipped with multiple oil guide grooves, improves
The lubricant effect of component especially bearing.
Detailed description of the invention
Fig. 1 is the overall structure diagram that integrated form drives electric bridge；
Fig. 2 is the transmission principle schematic diagram that integrated form drives electric bridge；
Fig. 3 is the structural schematic diagram of one angle of motor reducer integral housing；
Fig. 4 is the structural schematic diagram of another angle of motor reducer integral housing；
Fig. 5 is the lubrication system schematic diagram of one angle of motor reducer integral housing；
Fig. 6 is the lubrication system schematic diagram of another angle of motor reducer integral housing；
Fig. 7 is the lubrication system schematic diagram of retarder first half-shell；
Fig. 8 is the structural schematic diagram of input shaft；
Fig. 9 is that the schematic diagram of machining interference may occur for the gear of input shaft；
Figure 10 is the first mounting structure schematic diagram of input shaft and gear；
Figure 11 is the schematic diagram of the section structure of Figure 10；
Figure 12 is second of mounting structure schematic diagram of input shaft and gear；
Figure 13 is the schematic diagram of the section structure of Figure 12；
Figure 14 is the third mounting structure schematic diagram of input shaft and gear；
Figure 15 is the schematic diagram of the section structure of Figure 14；
Figure 16 is the mounting structure schematic diagram of input shaft and bearing mounting blocks；
Figure 17 is the schematic diagram of the section structure of Figure 16.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
A kind of integrated form as depicted in figs. 1 and 2 drives electric bridge, including shell, motor 2 and is separately positioned on motor 2
The retarder 1 and PEU component 3 at both ends, the shell include retarder first half-shell 10 and motor reducer integral housing 20,
The input shaft of the retarder 1 and the axis of motor 2 are integrally formed to form input shaft 4, and the input shaft 4 is arranged by bearing in shell
In vivo, described 4 one end of input shaft is equipped with rotor silicon steel sheet 5, and the other end is equipped with first gear 41, also passes through bearing in the shell
Equipped with jackshaft 6 and reducer assemblies 7, the jackshaft 6 is equipped with second gear 61, and second gear 61 is nibbled with first gear 41
It closes, third gear 62 is additionally provided on the jackshaft 6, the reducer assemblies 7 are equipped with reducer gear circle 71, third gear
62 engage with reducer gear circle 71.
Integrated form driving electric bridge of the invention proposes that a kind of motor, retarder and the integrated design of PEU, dynamical system are adopted
With run-in index structure, the input shaft of motor shaft and retarder is structure as a whole, and reducer shell, electric machine casing are structure as a whole,
This design can effectively reduce installation space and installation difficulty, reduce the total weight of product, manufacturing cost is effectively reduced.
As shown in Figure 3 and Figure 4, the motor reducer integral housing 20 includes integrally formed electric machine casing and deceleration
The second half-shell of device, the electric machine casing is generally cylindric, and diameter 150mm-165mm matches for the interference with motor stator
Close, the diameter magnitude of interference of interference fit is 0.2mm-0.3mm, ensure that the bearing capacity of driving electric bridge, and structure is simple, have compared with
Strong safety；And it is axially spaced equipped with multiple tracks radiating ribs 21 on the outer wall of electric machine casing, the design of shell radiating ribs is to examine
Consider vehicle driving direction namely when shell direction windward shell to the baffling characteristics of air fluid, carried out for different arrangements
Simulation analysis compared the schemes such as longitudinal rib scheme and horizontal bar, analyze heat dissipation effect, and combine housing molding process cloth
Horizontal bar is set, muscle width 3mm-5mm, height 10mm-15mm are spaced 12mm-18mm, muscle number is on shell between muscle and muscle
11-15, the radiating requirements of sufficient motor.
Circumferentially arranged with multiple tracks waling 22 on the outer wall of electric machine casing, and waling 22 extends to retarder
Second half-shell, motor reducer integral type shell waling number are 1-3, waling thickness 5mm-8mm, height
10mm-15mm, it is longitudinal through the second half shell parts of electric machine casing and retarder, the intensity and just of shell on the one hand can be improved
Degree, has on the other hand taken into account the cast shaping process requirement of shell.
Multiple tracks triangle reinforcing rib 23 is additionally provided between the electric machine casing lateral wall and the second half-shell of retarder end face.It will be electric
Casing body is cast integrally with the second half-shell of retarder, between use 3-5mm thickness triangle reinforcing rib, triangle reinforcing rib is along motor
Shell is longitudinally arranged, and is merged with reinforcing rib on the outside of the second half-shell of retarder, triangle reinforcing rib effectively raises the heat dissipation of shell
Efficiency, and improve the intensity of shell；This muscle can require adjustment muscle height and muscle arrangement form according to different intensity and toughnesses,
Muscle number is 3-6.
The electric machine casing inner wall lower is set between adjacent grid formula groove 24 circumferentially arranged with multiple grating type grooves 24
Have and separate reinforcing rib 25, the position limiting convex ring 26 of the axially position for stator, the limit are additionally provided on the electric machine casing inner wall
Position bulge loop 26 is located at 24 top of grating type groove.Motor reducer integral housing eliminates the flange of traditional retarder and motor
Joint face, is designed to grating type groove 24 at original connection space position, and the depth of grating type groove is 30mm-45mm, lattice
Grating groove location need to be 10-15 there are reinforcing rib 25 is separated, and separate reinforcing rib 25 with a thickness of 3mm-5mm, in proof strength
While be effectively reduced weight, improve the craftsmanship of casting, solve casting in easily occur shrinkage cavity and porosity, sand holes
The defects of.
Hanging ring 27, the hanging ring 27 and motor reducer integral housing 20 are additionally provided on the lateral wall of the electric machine casing
Integrally casting shaping, the thickness of hanging ring 27 are greater than 5mm, and through-hole is equipped in the middle part of hanging ring 27, and the aperture of the through-hole is 12mm-
18mm.For hanging ring apart from electric motor end cap flange 80mm -95mm, integral cast can save the zero of the independent hanging ring of split-type design
Part cost and producing line assembly cost.
Motor reducer integral housing simplifies the connection type between electric machine casing and reducer shell, improves peace
The convenience of dress, while vehicle installation space is saved, the weight of driving electric bridge is alleviated, and integrated form can be in original two shells
The reinforcing rib for increasing fusion on the basis of body improves the intensity of structure.
As shown in Fig. 5, Fig. 6 and Fig. 7, input shaft is equipped between the second half-shell of the retarder first half-shell 10 and retarder
Chamber 203, centre axocoel 204 and output axocoel 205, input axocoel is used to install input shaft, intermediate axocoel is used to install jackshaft,
Output axocoel is for installing reducer assemblies；The intermediate axocoel 204 and output axocoel 205, which are used to install on the end face of bearing, to be divided
Not She You the first oil guide groove 207 and the second oil guide groove 208, the input axocoel on 10 inner wall of retarder first half-shell 203
Point be additionally provided with third oil guide groove 103, the input axocoel 203, intermediate axocoel 204 outside be additionally provided with U-shaped reinforcing rib 209, it is U-shaped
The opening of reinforcing rib 209 is located at housing central section, and the U-shaped reinforcing rib that input cavity and intermediate axocoel periphery are cast out is used to keep off oil, U
The wide 3mm-5mm of type reinforcing rib is 3mm-5mm with mounting plane difference in height, for guiding lubricating oil to flow into input axocoel；Retarder
It is exported in second half-shell between axocoel 205 and inner walls and is additionally provided with inwardly protruded bulge 206, for reducing cavity volume,
Conducive to the utilization rate for improving lubricating oil.
Air collecting chamber 210, air collecting chamber center are additionally provided in the second half-shell of retarder between U-shaped reinforcing rib 209 and inner wall
Veritcal linearity with input axocoel line, input axocoel 203 and intermediate 204 line of axocoel at angle α, α angle value is 22 °-
25 °, cooperation breather plug use can be used for the intracorporal pressure of balance shell.Air collecting chamber long 22mm-30mm, wide 12-18mm, deep 25-
35mm；The top of the air collecting chamber 210 is equipped with the bolt hole 211 for being used to install breather plug, and the side of the air collecting chamber 210 is fixed
There is oil baffle, and is additionally provided with bleed hole 212 between air collecting chamber 210 and oil baffle.It also can be processed into labyrinth inside the air collecting chamber
Structure is used cooperatively with the above-mentioned bolt hole for filling breather plug.
First oil guide groove 207, the second oil guide groove 208, third oil guide groove 103 are two, and two the first Oil Guides
207, two at interval 180 ° of the third oil guide groove 103 of the second oil guide groove 208, two distributions of slot, the first oil guide groove, the second Oil Guide
The wide 5mm-7mm of slot, third oil guide groove, for guiding lubricating oil to flow into bearing cavity.Above-mentioned lubrication system is fairly simple, but energy
The each bearing bore of effectively lubricating.
As shown in Fig. 2, the both ends of the input shaft 4 are respectively equipped with first bearing 42,3rd bearing 44, the input shaft
Middle part is equipped with second bearing 43, and first bearing 42, second bearing 43,3rd bearing 44 form 3 fulcrum structures, by controlling bearing
With axis, bearing and bearing block fit clearance, guarantee without Planar Mechanisms；The both ends of the jackshaft 6 are respectively equipped with fourth bearing 63,
Five bearings 64, the fourth bearing 63 is located at the inside of second bearing 43, and fourth bearing 63 and second bearing 43 are along axial part
Divide and overlap, the 5th bearing 64 is located at the outside of 3rd bearing 44, and 5th bearing 64 and 3rd bearing 44 are along axial direction
Partly overlap setting.
The input shaft is integrated form integrated design, i.e., is integrated the design of the input shaft of motor shaft and retarder, can be incited somebody to action
Originally 4 bearings of two axis of support were kept to 3, while the machine driving for having subtracted the input shaft of motor shaft and retarder connects
It connects；By adjusting the input axocoel and intermediate axocoel of shell, make second bearing 43, fourth bearing 63 at designing side by side, i.e., two
Bearing can effectively reduce the center of input shaft and jackshaft away from and then can reducing in differential mechanism and input shaft in left and right arrangement
The heart away from, and then reduce assembly radial contour dimension.
The first bearing 42, second bearing 43,3rd bearing 44 are ball bearing, or are followed successively by ball bearing, the axis of cone
It holds and needle bearing；The fourth bearing 63,5th bearing 64 are ball bearing, or are cone bearing.The retarder group
The both ends of part 7 are respectively equipped with 6th bearing 72 and 7th bearing 73, and 6th bearing 72 and 7th bearing 73 be ball bearing or
Person is cone bearing.
Above structure is a kind of design layout mode of the axial direction of integrated form driving electric bridge middle (center) bearing side by side, and input shaft is collection
Accepted way of doing sth design, simplifies structure, and being easily installed while improving structural strength reduces noise, at the same by motor big-end bearing and
Jackshaft left bearing is designed side by side, and such arrangement can effectively reduce the radial space of shafting, is particularly advantageous for subtracting
The radial arrangement space of fast device.
As shown in figure 9, when refining to gear, grinding wheel can be with installation motor in processing driving motor gear shaft
The shaft part of bearing mounting blocks is interfered, and is caused the shaft part afunction of bearing mounting blocks, is influenced to replace the spare parts (such as bearing, oil sealing etc.)
Normal use, therefore to avoid the above problem, the structure that input shaft is assembled after independently being manufactured using gear with input shaft, or adopt
The structure assembled after independently being manufactured with bearing mounting blocks with input shaft, the former specific structure are as follows:
As shown in figure 8, bearing installation is additionally provided on the input shaft 4 between rotor silicon steel sheet 5 and first gear 41
Block 45, the bearing mounting blocks 45 are integrally formed with input shaft 4, and the first gear 41 passes through hot jacket, spline fitted or key
The mode of slot cooperation is mounted on input shaft 4, can effectively reduce maintenance cost；The specific mounting means of first gear and input shaft
Include the following three types structure.
The first structure is as shown in Figure 10 and Figure 11, and the input shaft 4 of 45 side of bearing mounting blocks is third shaft part
410,410 stepped of third shaft part, the first gear 41 includes integrally formed gear ring and axle tube 411, institute
State that gear ring is fixed on third shaft part 410 and the side of gear ring and the step surface of third shaft part 410 offset, the axle tube
411 are located at the other side of gear ring and stepped, and the 3rd bearing 44 is arranged on axle tube 411, and 3rd bearing 44
It is limited by step surface and circlip.
Second of structure is as shown in Figure 12 and Figure 13, and the input shaft 4 of 45 side of bearing mounting blocks is third shaft part
410, the first gear 41 includes integrally formed gear ring and pipe spreader 412, and gear ring is located at the outer middle side part of pipe spreader 412, institute
It states pipe spreader 412 to be fixed on third shaft part 410, and 412 outer end stepped of pipe spreader, the 3rd bearing 44 is arranged in axis
On 412 outer end of casing, and limited by step surface and circlip.
Shown in the third structure chart 14 and Figure 15, the both ends of the input shaft 4 are respectively to be used to install first bearing 42
First shaft part 47 and for installing the second shaft part 48 of 3rd bearing 44, and the first shaft part 47 and the second shaft part 48 are step-like
Circlip is equipped on cylinder, first shaft part 47 and the second shaft part 48, first bearing 42,3rd bearing 44 pass through circlip respectively
It is limited with step surface.
Bearing mounting blocks are as follows with the specific structure of input shaft assembly after independently manufacturing:
As shown in Figure 16 and Figure 17, axis is additionally provided between rotor silicon steel sheet 5 and first gear 41 on the input shaft 4
Mounting blocks 45 are held, the bearing mounting blocks 45 are mounted on input shaft 4 in such a way that hot jacket, spline fitted or keyway cooperate
On, the first gear 41 is integrally formed with input shaft 4.
The positioning section 454 of protrusion is additionally provided on the input shaft 4, the bearing mounting blocks 45 are fixed on positioning section 454,
One end of the bearing mounting blocks 45 is equipped with bulge loop 452, and the outer wall of bulge loop 452 is equipped with groove 451, the bearing mounting blocks
45 are located at the side of bulge loop 452 for the support portion 453 for installing second bearing 43.
The axle center of the input shaft 4 is equipped with blind hole 49, for subtracting material to structure, reduces construction weight.The input shaft 4
Side wall on be additionally provided with the locating slot 46 circumferentially positioned for silicon steel sheet.
Design scheme 1: gear segment and shaft part are designed to two by 2 kinds of schemes of above-mentioned motor gear axis segment design
Point, two parts axis can be attached by modes such as hot jacket, spline fitted, keyway cooperations, effective solution machining interference
The problem of, and gear segment integrates the bearing section of side, increases the combination length of gear segment and shaft part, while using in gear
Cheng Zhongru breaks down, and can be individually replaced gear segment, and main body shaft part can continue to use, and reduce the cost of maintenance.Design side
Case 2: by the shaft part of motor bearings mounting blocks from empty axle sleeve in one section of design is isolated in shaft body, becoming two sections of axis, respectively plus
Work avoids fine grinding interference problem.Two parts axis can be attached by modes such as hot jacket, spline fitted, keyway cooperations, effectively
Solve the problems, such as machining interference.
In conclusion two axis designs of input shaft of motor shaft and retarder are integrated, simplify motor output shaft with
Connection type between reducer input shaft, improves the convenience of installation, while saving the bulk of driving electric bridge, subtracts
The light weight of driving electric bridge, and integration type shaft design can reduce bearing usage quantity, be down to 3 from 4, reduce product at
This.
It should be pointed out that above embodiments are only representative examples of the invention.The present invention can also there are many deformations.It is all
Any simple modification, equivalent change and modification to the above embodiments of essence according to the present invention are considered as belonging to this
The protection scope of invention.
Claims (10)
1. a kind of integrated form drives electric bridge, it is characterised in that: including shell, motor (2) and be separately positioned on motor (2) both ends
Retarder (1) and PEU component (3), the shell includes retarder first half-shell (10) and motor reducer integral housing
(20), the input shaft of the retarder (1) and the axis of motor (2) are integrally formed to be formed input shaft (4), and the input shaft (4) is logical
Bearing to be crossed to be arranged in shell, described input shaft (4) one end is equipped with rotor silicon steel sheet (5), and the other end is equipped with first gear (41),
Jackshaft (6) and reducer assemblies (7) are also equipped with by bearing in the shell, the jackshaft (6) is equipped with second gear
(61), second gear (61) is engaged with first gear (41), is additionally provided with third gear (62) on the jackshaft (6), described to subtract
Fast device assembly (7) is equipped with reducer gear circle (71), and third gear (62) is engaged with reducer gear circle (71).
2. a kind of integrated form according to claim 1 drives electric bridge, it is characterised in that: the motor reducer integral type shell
Body (20) includes the second half-shell of integrally formed electric machine casing and retarder, and the electric machine casing is generally cylindric, and motor
It is axially spaced on the outer wall of shell to be equipped with multiple tracks radiating ribs (21), longitudinally add on the outer wall of electric machine casing circumferentially arranged with multiple tracks
Strengthening tendons (22), and waling (22) extends to the second half-shell of retarder, the electric machine casing lateral wall and the second retarder
Multiple tracks triangle reinforcing rib (23) is additionally provided between half-shell end face.
3. a kind of integrated form according to claim 2 drives electric bridge, it is characterised in that: the retarder first half-shell (10)
Input axocoel (203), intermediate axocoel (204) and output axocoel (205), the jackshaft are equipped between the second half-shell of retarder
Chamber (204) and output axocoel (205), which are used to install on the end face of bearing, is respectively equipped with the first oil guide groove (207) and the second oil guide groove
(208), the input axocoel (203) being located on retarder first half-shell (10) inner wall is partially additionally provided with third oil guide groove (103), institute
It states input axocoel (203), be additionally provided with U-shaped reinforcing rib (209) on the outside of intermediate axocoel (204), the opening of U-shaped reinforcing rib (209)
Place is located at housing central section, is exported between axocoel (205) and inner walls in the second half-shell of retarder and is additionally provided with inwardly protruded drum
It wraps (206).
4. a kind of integrated form according to claim 1 drives electric bridge, it is characterised in that: the both ends of the input shaft (4) point
Not She You first bearing (42), 3rd bearing (44), the middle part of the input shaft is equipped with second bearing (43), the jackshaft
(6) both ends are respectively equipped with fourth bearing (63), 5th bearing (64), and the fourth bearing (63) is located at second bearing (43)
Inside, and fourth bearing (63) is overlapped with second bearing (43) along axial component, the 5th bearing (64) is located at third
The outside of bearing (44), and 5th bearing (64) is overlapped with 3rd bearing (44) along axial component.
5. a kind of integrated form according to claim 1 drives electric bridge, it is characterised in that: be located on the input shaft (4) and turn
It is additionally provided with bearing mounting blocks (45) between sub- silicon steel sheet (5) and first gear (41), the bearing mounting blocks (45) and input shaft
(4) it is integrally formed, the first gear (41) is mounted on input shaft in such a way that hot jacket, spline fitted or keyway cooperate
(4) on.
6. a kind of integrated form according to claim 5 drives electric bridge, it is characterised in that: the both ends of the input shaft (4) point
Not Wei for installing the first shaft part (47) of first bearing (42) and for installing the second shaft part (48) of 3rd bearing (44), and
First shaft part (47) and the second shaft part (48) are stepped cylindrical, are all provided on first shaft part (47) and the second shaft part (48)
There is circlip, first bearing (42), 3rd bearing (44) are limited by circlip and step surface respectively.
7. a kind of integrated form according to claim 5 drives electric bridge, it is characterised in that: bearing mounting blocks (45) side
Input shaft (4) be third shaft part (410), third shaft part (410) stepped, the first gear (41) include one
Molding gear ring and axle tube (411), the gear ring is fixed on third shaft part (410) and the side of gear ring and third shaft part
(410) step surface offsets, and the axle tube (411) is located at the other side and the stepped of gear ring, the 3rd bearing
(44) it is arranged on axle tube (411), and 3rd bearing (44) is limited by step surface and circlip.
8. a kind of integrated form according to claim 5 drives electric bridge, it is characterised in that: bearing mounting blocks (45) side
Input shaft (4) be third shaft part (410), the first gear (41) includes integrally formed gear ring and pipe spreader (412), tooth
Circle is located at pipe spreader (412) outer middle side part, and the pipe spreader (412) is fixed on third shaft part (410), and pipe spreader (412)
Outer end stepped, the 3rd bearing (44) are arranged on pipe spreader (412) outer end, and are limited by step surface and circlip.
9. a kind of integrated form according to claim 1 drives electric bridge, it is characterised in that: be located on the input shaft (4) and turn
Be additionally provided with bearing mounting blocks (45) between sub- silicon steel sheet (5) and first gear (41), the bearing mounting blocks (45) by hot jacket,
Spline fitted or keyway cooperation mode be mounted on input shaft (4), the first gear (41) and input shaft (4) one at
Type.
10. a kind of integrated form according to claim 9 drives electric bridge, it is characterised in that: be additionally provided on the input shaft (4)
The positioning section (454) of protrusion, the bearing mounting blocks (45) are fixed on positioning section (454), the bearing mounting blocks (45)
One end is equipped with bulge loop (452), and the outer wall of bulge loop (452) is equipped with groove (451), and the bearing mounting blocks (45) are located at bulge loop
(452) side is the support portion (453) for installing second bearing (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198061.6A CN109973590A (en) | 2019-03-15 | 2019-03-15 | A kind of integrated form driving electric bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198061.6A CN109973590A (en) | 2019-03-15 | 2019-03-15 | A kind of integrated form driving electric bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973590A true CN109973590A (en) | 2019-07-05 |
Family
ID=67079028
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910198061.6A Pending CN109973590A (en) | 2019-03-15 | 2019-03-15 | A kind of integrated form driving electric bridge |
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| Country | Link |
|---|---|
| CN (1) | CN109973590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117254624A (en) * | 2023-11-14 | 2023-12-19 | 广汽埃安新能源汽车股份有限公司 | Motor integrated shell and motor |
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