CN107289115A - Drive assembly in wheel - Google Patents
Drive assembly in wheel Download PDFInfo
- Publication number
- CN107289115A CN107289115A CN201610202726.2A CN201610202726A CN107289115A CN 107289115 A CN107289115 A CN 107289115A CN 201610202726 A CN201610202726 A CN 201610202726A CN 107289115 A CN107289115 A CN 107289115A
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- China
- Prior art keywords
- oil
- wheel
- drive assembly
- oil groove
- cover plate
- Prior art date
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Classifications
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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
- F16H57/042—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
Abstract
Drive assembly in one kind wheel, including：Main part is surrounded space and is divided into decelerator chamber and motor cavity by annular outer cover, including annular body portion and rib portion, rib portion, and decelerator chamber is located at the radially inner side of motor cavity；The annular oil groove of the axis for the surround shell being arranged in rib portion, oil groove is located at the radial outside of decelerator chamber, the dorsad axial other end of main part that is open in the axial direction of oil groove；Oil filler point and outage in rib portion are arranged on, is diametrically respectively positioned between oil groove and decelerator chamber, and is connected with oil groove, decelerator chamber；Drive assembly also includes in wheel：Annular cover plate, the axially opposed setting of opening with oil groove, cover plate is fixed with rib portion；Steam vent on the cover board is set, and steam vent is connected with oil groove；Exhaust check valve in steam vent, exhaust check valve is used for uni-directionally limitation air and arranged from oil groove to air.Technical scheme improves the efficiency and performance of drive assembly in wheel.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of interior drive assembly of wheel.
Background technology
Electric automobile refers to the vehicle travelled using vehicle power as power and with power wheel, and it is included
In the drive assembly (In Wheel Drive, abbreviation IWD) for driving, in the wheel of brake wheel, the wheel
Power, transmission and brake apparatus are all integrated together by drive assembly, thus by the Machinery Ministry of electric automobile
Divide and greatly simplify.
Drive assembly includes the annular outer cover in the wheel hub of wheel in existing wheel, and shell is included vertically
The annular body portion of extension and the annular fixed in the radially inner side of main part and axial one end of main part
Rib portion.Main part is surrounded space and is radially divided into decelerator chamber and motor cavity by rib portion, is slowed down
Device chamber is located at the radially inner side of motor cavity.
Rib portion is provided with the annular oil groove that is recessed vertically, the axis of oil groove surround shell, and positioned at subtracting
The radial outside of fast device chamber, the dorsad axial other end of main part that is open in the axial direction of oil groove.Rib portion
Provided with the oil filler point, outage and steam vent being diametrically respectively positioned between oil groove and decelerator chamber, note
Oilhole, outage, steam vent are intervally arranged in the circumferential, and are connected with oil groove, decelerator chamber.Note
Oilhole, outage, steam vent are obliquely installed with the axis of shell.Wherein, oil filler point, outage
It is screwed hole, and coordinates with a bolt thread, oil filler point, outage is blocked.
However, in above-mentioned existing wheel there are following deficiencies in drive assembly：
1st, the less efficient and poor-performing of drive assembly in taking turns.
2nd, oil filler point, outage, steam vent processing difficulties, and the assembling of oil filler point, outage and bolt
It is difficult.
3rd, in inconvenient shell lubricating oil maintenance.
The content of the invention
One of the problem to be solved in the present invention is：In existing wheel the less efficient and performance of drive assembly compared with
Difference.
The two of the problem to be solved in the present invention are：Oil filler point, oil extraction on shell in drive assembly in existing wheel
The assembling of hole, steam vent processing difficulties, and oil filler point, outage and bolt is difficult.
The three of the problem to be solved in the present invention are：Lubricating oil in drive assembly inconvenience shell in existing wheel
Safeguard.
To solve the above problems, the invention provides drive assembly in one kind wheel, including：Annular outer cover,
Including the annular body portion and the radially inner side in the main part and the axial direction of main part axially extended
One end fix annular rib portion, the rib portion by main part surround space be divided into decelerator chamber with
Motor cavity, the decelerator chamber is located at the radially inner side of motor cavity；It is arranged on surrounding in the rib portion
The annular oil groove of the axis of the shell, the oil groove is located at the radial outside of decelerator chamber, the oil
The dorsad axial other end of main part that is open in the axial direction of groove；It is arranged on the oil filler point in the rib portion
And outage, be diametrically respectively positioned between the oil groove and decelerator chamber, and with the oil groove, subtract
Fast device chamber connection；Annular cover plate, the axially opposed setting of opening with the oil groove, the cover plate and gear
Edge is fixed；The steam vent on the cover plate is arranged on, the steam vent is connected with oil groove；Installed in institute
The exhaust check valve in steam vent is stated, the exhaust check valve is used to uni-directionally limit air from the oil
Groove is arranged to air.
Alternatively, the oil filler point, outage at least one be unthreaded hole.
Alternatively, at least one of quantity of the oil filler point, outage is two or more, Suo Yousuo
State the circumferentially spaced arrangement of oil filler point, outage.
Alternatively, the cover plate is visual cover plate, is able to observe that in the oil groove and lubricates from the cover plate
The fuel head of oil.
Alternatively, dorsad the surface of shell is provided with some graduation marks, the scale to the cover plate in the axial direction
Line is used for the oil mass for characterizing lubricating oil in the shell.
Alternatively, the visual cover plate is to be able to observe that lube color in the oil groove from the cover plate
Transparent cover plate.
Alternatively, the cover plate is detachably fixed with rib portion and is connected；And/or,
The cover plate be provided with the sealing through hole that is connected with the oil groove, the sealing through hole be provided with it is removable
Unload ground sealing-plug；
Drive assembly is attached on automobile and when the sealing-plug is removed from cover plate in the wheel, institute
The lubricating oil in shell is stated successively via the outage, oil groove, sealing through hole discharge.
Alternatively, described be detachably fixed is connected as bolt connection, and the sealing-plug is bolt, the spiral shell
Bolt coordinates with sealing through hole whorl.
Alternatively, the sealing through hole and steam vent are in 180 degree in the circumference of drive assembly in the wheel
It is arranged at intervals.
Alternatively, the steam vent and outage in the wheel in the circumference of drive assembly be in 180 degree between
Every setting.
Alternatively, the steam vent and the circumferentially-spaced setting of oil filler point drive assembly in the wheel.
Compared with prior art, technical scheme has advantages below：
In wheel during drive assembly work, the lubricating oil of decelerator intracavitary can be under the drive of decelerator from oiling
Hole is thrown out of to oil groove, under the restriction effect of cover plate, and the lubricating oil in oil groove will not be revealed, and meeting
Flowed downward under self gravitation effect in oil groove, then flow back to decelerator intracavitary via outage, from
And realize the recovery of decelerator intracavitary lubricating oil, it is to avoid the reduction of decelerator intracavitary lubricating oil and because
Lubricating oil reduces caused a series of problems, so as to improve the efficiency and performance of drive assembly in wheel.
Further, oil filler point, outage at least one be unthreaded hole.The unthreaded hole compared with screwed hole
Processing is more simple.In addition, oil filler point, outage with bolt thread without coordinating, thus in the absence of existing
There is the problem of oil filler point, outage and bolts assemblies are difficult in drive assembly in wheel.
Further, cover plate is visual cover plate, is able to observe that the pasta of lubricating oil in oil groove is high from cover plate
Degree, when judging the low on fuel in shell according to the fuel head, can be mended into shell in time
Fill the maintenance of lubricating oil in lubricating oil, very convenient shell.
Brief description of the drawings
Fig. 1 is that drive assembly is attached on automobile that driving is total in hour wheel in taking turns in one embodiment of the present of invention
Into the stereogram looked over from overall width direction, dotted line is not visible structure in figure；
Fig. 2 is sectional views of the Fig. 1 along A-A directions, and the axis of shell, which is located at, in the interior drive assembly of wheel is somebody's turn to do
On the cutting plane of sectional view.
Embodiment
As it was previously stated, in existing wheel there are following deficiencies in drive assembly：1st, take turns in drive assembly efficiency compared with
Low and poor-performing.2nd, oil filler point, outage, steam vent processing difficulties, and oil filler point, outage
Assembling with bolt is difficult.3rd, in inconvenient shell lubricating oil maintenance.
It has been investigated that, the reason for causing the less efficient and poor-performing for taking turns interior drive assembly is：Subtract
The lubricating oil of fast device intracavitary is easily thrown out of to steam vent, and is thrown away from steam vent outside shell, causes decelerator
The oil mass of intracavitary is reduced.And on the one hand the oil mass of decelerator intracavitary is then easily caused decelerator once reducing
The lack of lubrication of middle all parts, causing the efficiency of decelerator reduces, and on the other hand degradation can lead
Sending a telegraph machine, temperature is raised because of cooling deficiency.And once motor temperature is raised, then motor can be caused to export
Moment of torsion and power reduction, causing the efficiency of motor reduces, degradation.For example, when decelerator is at a high speed
During lower operation, the lubricating oil of decelerator intracavitary be easily thrown out of under the drive of decelerator so that above mentioned problem more
To be notable.For another example automobile is when climbing operating mode, steam vent can be closer to the liquid level of lubricating oil, subtract
The lubricating oil of fast device intracavitary is easily thrown out of to steam vent under the drive of decelerator, and is thrown away outside from steam vent
Shell is outer so that above mentioned problem is more notable.
It has been investigated that, the reason for causing oil filler point, outage, steam vent processing difficulties is：First,
It is used for wall thickness (the chi diametrically of part for diametrically separating oil groove and decelerator chamber in rib portion
It is very little) very little, (i.e. oil filler point, the oil extraction of inclined hole is processed on the part of wall thickness very little in rib portion
Hole, steam vent) it is highly difficult, when the hole is screwed hole (being used as oil filler point, outage), it is processed more
For difficulty.Second, oil filler point, outage are limited close to the position being open in the axial direction of decelerator chamber
What system was required, its in the axial direction can not too far away from oil groove opening, otherwise, oil filler point, outage
The decelerator that the opening is easy to be decelerated device intracavitary is stopped, so that without the injection of normal direction decelerator intracavitary
Lubricating oil or the lubricating oil that decelerator intracavitary can not be discharged.And in order to successfully add to decelerator intracavitary
Enter lubricating oil or discharge the lubricating oil of decelerator intracavitary, oil filler point, the aperture of outage set larger,
Therefore, when processing oil filler point, outage, the position deviation allowed band of the opening is very small, so as to make
Into the processing difficulties of oil filler point, outage.
It has been investigated that, the reason for causing oil filler point, outage and bolts assemblies difficult is：By bolt
Be assembled to oil filler point, in outage when, bolt can pass through oil groove, and the width dimensions of oil groove diametrically
Smaller, the radial dimension of bolt is larger, therefore in assembling, bolt is easy to interfere with rib portion, makes
Assembling into oil filler point, outage and bolt is difficult.
It has been investigated that, the reason for causing the maintenance of lubricating oil in inconvenient shell is：On the one hand, from outer
The outside of shell can not observe the oil mass of decelerator intracavitary, thus can not be supplemented in time in low on fuel
Lubricating oil.On the other hand, the quality of decelerator intracavitary lubricating oil can not be observed from the outside of shell, because
And can not when quality of lubrication oil is poor more oil change in time.
In consideration of it, the invention provides drive assembly in a kind of improved wheel, it solves above-mentioned well
Deficiency in existing wheel present in drive assembly.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
The specific embodiment of the present invention is described in detail.
Before being described in detail, it is emphasized that in the inventive solutions, except non-specifically
Emphasize, otherwise the axial direction refers to the axial direction of annular outer cover, the circumference refers to the circumference of annular outer cover,
The radial direction refers to the radial direction of annular outer cover.In addition, it is described it is axially extending should not be defined to strictly with
The axis parallel of annular outer cover or with the axis be in certain acute angle, it is described to radially extend
Should not be defined to strictly yet it is vertical with the axis or with the axis O in certain
Acute angle.
With reference to shown in Fig. 1 to Fig. 2, drive assembly includes annular outer cover 1 in the wheel that the present embodiment is provided,
Shell 1 is used for the wheel hub (not shown) for being fixed on wheel.Shell 1 includes the annular axially extended
Main part 10 and the annular gear fixed in the radially inner side of main part 10 with axial one end of main part 10
Edge 11.Main part 10 is surrounded space (not identifying) and is divided into the He of decelerator chamber 12 by rib portion 11
Motor cavity 13, decelerator chamber 12 is located at the radially inner side of motor cavity 13, and decelerator chamber 12 and motor cavity
13 connections.Wherein, decelerator chamber 12 is used to accommodate decelerator (not shown), and motor cavity 13 is used to accommodate
Motor (not shown), the motor provides power for running car.
Lubricating oil is filled with decelerator chamber 12, is entered with all parts to decelerator in decelerator chamber 12
Row lubrication and cooling, so as to improve the performance and efficiency of decelerator.
Rib portion 11 is provided around the axis O of shell 1 annular oil groove 14, in Fig. 1 due to oil
Groove 14 is invisible therefore its approximate location is illustrated with double dot dash line.Oil groove 14 is located at the footpath of decelerator chamber 12
Laterally, the dorsad axial other end of main part 10 that is open in the axial direction of oil groove 14 so that the opening
Dorsad motor cavity 13 in the axial direction.In the present embodiment, the longitudinal section of oil groove 14 is U-shaped, but is needed
Illustrate, in the inventive solutions, the longitudinal section of oil groove 14 could be arranged to arbitrary shape,
It should not be limited to the present embodiment.
Rib portion 11 is provided with oil filler point 15 and outage 16, and oil filler point 15 and outage 16 are radially
It is upper to be located between oil groove 14 and decelerator chamber 12, and connected with oil groove 14, decelerator chamber 12 so that：
On the one hand, lubricating oil can be flowed into decelerator chamber 12 via oil groove 14, oil filler point 15 successively, so that
Realize the oiling into decelerator chamber 12；On the other hand, the lubricating oil in decelerator chamber 12 can be passed through successively
Discharged by outage 16, oil groove 14, so as to realize the oil extraction of decelerator chamber 12.Note in rib portion 11
Oilhole 15 and outage 16 are intervally arranged in the circumferential.In fig. 2, cutting plane and without oil filler point
15, therefore oil filler point 15 is invisible in figure.When drive assembly is attached on automobile in wheel, oil filler point 15
Higher than outage 16, i.e. on overall height direction, oil filler point 15 is than outage 16 closer to roof.
Drive assembly also includes annular cover plate 2 in wheel, and the opening of cover plate 2 and oil groove 14 is axially opposed to be set
Put, and cover plate 2 is fixed with rib portion 11, so, the lid of cover plate 2 is located in the opening of oil groove 14,
Avoid the opening to expose, serving prevents the effect of the oil leakage in oil groove 14.
Cover plate 2 is provided with the steam vent 20 connected with oil groove 14, steam vent 20 and is provided with exhaust check valve
3, exhaust check valve 3 is used to uni-directionally limit air from the row of oil groove 14 to air so that decelerator chamber
Air in 12 can successively via oil filler point 15, oil groove 14, the row of exhaust check valve 3 to air, still,
Extraneous air can not be flowed into oil groove 14 via exhaust check valve 3, it is to avoid environmental contaminants are passed through successively
Entered by oil groove 14, oil filler point 15, outage 16 in decelerator chamber 12 so that causing pollution.
In wheel during drive assembly work, the lubricating oil in decelerator chamber 12 can be under the drive of decelerator from note
Oilhole 15 is thrown out of to oil groove 14, under the restriction effect of cover plate 2, and the lubricating oil in oil groove 14 is not
It can reveal, and can be flowed downward under self gravitation effect in oil groove 14, then via outage 16
Flow back in decelerator chamber 12, it is achieved thereby that in decelerator chamber 12 lubricating oil recovery, it is to avoid slow down
The reduction of lubricating oil and a series of problems caused by lubricating oil is reduced in device chamber 12, so as to improve
The efficiency and performance of drive assembly in wheel.
In the present embodiment, the circumferentially-spaced of drive assembly in wheel is set steam vent 20 with oil filler point 15
Put.As it was previously stated, in wheel during drive assembly work, the lubricating oil in decelerator chamber 12 can be in decelerator
Lower splashing is driven to get up, the parts of lubricating oil got up of splashing can be mixed to form with the air in decelerator chamber 12
Oil gas, oil gas realizes Oil-gas Separation from after the discharge of oil filler point 15, and the air separated is from exhaust check valve
3 rows are to air, because the circumferential upper air-vent 20 of the drive assembly in wheel mutually staggers with oil filler point 15,
Therefore the lubricating oil separated will not be leaked from the exhaust check valve 3 in steam vent 20, it is to avoid decelerator
The reduction of lubricating oil and a series of problems caused by lubricating oil is reduced in chamber 12, so as to improve wheel
The efficiency and performance of interior drive assembly.
Further, in the present embodiment, steam vent 20 and the week of the drive assembly in wheel of oil filler point 15
Upward interval angles are the acute angle less than 45 degree.Certainly, in other embodiments, if not considering separation
The leakage problem of lubricating oil out, steam vent 20 is with oil filler point 15 in the axial direction of the interior drive assembly of wheel
It can also align, i.e., both interval angles are zero.
In the present embodiment, steam vent 20 and outage 16 are in 180 in the circumference of drive assembly in wheel
Degree is arranged at intervals so that steam vent 20 and outage 16 at grade, the axis O of shell 1
In the plane.When drive assembly is attached on automobile in wheel：As shown in figure 1, steam vent 20 is located at
Axis O top, steam vent 20 and the line at the center (not identifying) of cover plate 2 are put down with overall height direction
OK, extreme higher position of the oil groove 14 on overall height direction is corresponding with steam vent 20；With reference to Fig. 1 to Fig. 2 institutes
Show, outage 16 is located at axis O lower section, and the extreme lower position with oil groove 14 on overall height direction
Correspondence.
Understood according to noted earlier, the air in decelerator chamber 12 can be successively via oil filler point 15, oil groove
14th, the row of exhaust check valve 3 is to air, due to steam vent 20 and highest of the oil groove 14 on overall height direction
Position correspondence, therefore the air for entering to the extreme higher position in oil groove 14 from decelerator chamber 12 can also pass through
The row of exhaust check valve 3 in steam vent 20 realizes the discharge of air maximal efficiency in shell 1 to air.
Understood according to noted earlier, the lubricating oil flowed into from decelerator chamber 12 in oil groove 14 can be via row
Oilhole 16 is flowed back in decelerator chamber 12, because outage 16 is minimum on overall height direction with oil groove 14
Position correspondence, therefore the lubricating oil of the extreme lower position also can flow back to deceleration by outage 16 in oil groove 14
In device chamber 12, the recovery of lubricating oil maximal efficiency in oil groove 14 is realized.
But it should be noted that, in other embodiments, if do not consider the discharge efficiency of air in shell 1,
The organic efficiency of lubricating oil in oil groove 14, steam vent 20 and the circumference of the drive assembly in wheel of outage 16
On can also be arranged at intervals with other angles (such as obtuse angle).
In the present embodiment, steam vent 20 is axially through cover plate 2, and is arranged in existing wheel in drive assembly
Stomata is inclined at the part for being used to diametrically separate oil groove and decelerator chamber in rib portion, will
Both, which compare, understands, the processing of steam vent 20 is more simple in the present embodiment.
In the present embodiment, the axis O of oil filler point 15, outage 16 with shell 1 is obliquely installed,
That is, oil filler point 15, outage 16 be not vertical with axis O, and each oilhole is close to oil groove 14
Opening in the axial direction than each oilhole close to decelerator chamber 12 opening closer to cover plate 2.But it should be noted
It is, it is in the inventive solutions, relative between oil filler point 15, outage 16 and axis O
Position relationship should not be limited to the present embodiment.
In the present embodiment, oil filler point 15, outage 16 at least one be unthreaded hole.And in existing wheel
Oil filler point, outage are screwed hole in drive assembly, and the processing of unthreaded hole is more simple compared with screwed hole.
Further, since oil filler point 15, outage 16 are unthreaded hole, without coordinating with bolt thread, thus it is not present
The problem of oil filler point, outage and bolts assemblies are difficult in drive assembly in existing wheel.
In the present embodiment, oil filler point 15, the quantity of outage 16 are one.
In the alternative of the present embodiment, oil filler point 15, at least one of quantity of outage 16 are two
More than individual, the circumferentially spaced arrangement of all oil filler points 15, outage 16.The alternative is relative to this implementation
Example tool has the advantage that：By increasing the quantity of oil filler point 15 and/or outage 16, can ensure it is suitable
While sharp ground adds lubricating oil in lubricating oil or discharge decelerator chamber 12 into decelerator chamber 12, reduce
Each oil filler point 15, the aperture of outage 16, when the aperture of oil filler point 15, outage 16 is smaller,
Position deviation of each oilhole close to the opening of decelerator chamber 12 when processing oil filler point 15, outage 16
Allowed band is more relatively large so that oil filler point 15, outage 16 processing it is increasingly difficult.
In the present embodiment, exhaust check valve 3 is bleeder screw, in other embodiments, and exhaust is unidirectional
Valve 3 is it can also be provided that other can realize the construction of one direction exhaust.
In the present embodiment, rib portion 11 include radially extend the first radial extension 11a, second
Radial extension 11b, the second radial extension 11b are located at the first radial extension 11a radially inner side,
Axially-extending portion between first radial extension 11a, the second radial extension 11b by axially extending
11c is fixed.
But it should be noted that, in the inventive solutions, the shape design in rib portion 11 does not answer office
It is limited to the present embodiment, as long as main part 10 can be surrounded space by it is divided into decelerator chamber 12 and motor
Chamber 13.
In the present embodiment, cover plate 2 is visual cover plate, and lubrication in oil groove 14 is able to observe that from cover plate 2
The fuel head of oil, can be timely when judging the low on fuel in shell 1 according to the fuel head
Ground make-up oil into shell 1.
Further, in the present embodiment, dorsad the surface of shell 1 is provided with some to cover plate 2 in the axial direction
Graduation mark 22, graduation mark 22 is used for the oil mass for characterizing lubricating oil in shell 1, so, according to scale
Line 22 can intuitively judge whether the oil mass of lubricating oil in shell 1 is suitable very much, when judging oil pump capacity not
, can the make-up oil into shell 1 in time when sufficient.
Further, in the present embodiment, some graduation marks 22 include maximum oil mass graduation mark 24
With minimum oil volume graduation mark 23.When drive assembly is attached on automobile in wheel, maximum oil mass graduation mark 24
In the top of minimum oil volume graduation mark 23.Maximum oil mass graduation mark 24 is used to characterize lubricating oil in shell 1
The suitable oil mass of maximum, minimum oil volume graduation mark 23 is used to characterize the suitable oil of minimum of lubricating oil in shell 1
Amount, when the fuel head that lubricating oil in oil groove 14 is observed from cover plate 2 is less than minimum oil volume graduation mark 23
When, the make-up oil into shell 1.When injecting lubricating oil into shell 1, when from cover plate 2
When the fuel head of lubricating oil reaches maximum oil mass graduation mark 24 in oil groove 14, stop into shell 1
Inject lubricating oil, it is to avoid the waste of lubricating oil.
It should be noted that, in other embodiments, some graduation marks 22 on cover plate 2 can also be set
Other manner is set to, the present embodiment is should not be limited to.
Further, in the present embodiment, cover plate 2 is transparent cover plate, and is able to observe that from cover plate 2
The color of lubricating oil in oil groove 14.When observing the color exception of lubricating oil, show lubrication in shell 1
Oily is second-rate, and the lubricating oil in shell 1 can be changed in time.In general, when lubricating oil
When color is shallower, transparency is higher, then show the better quality of lubricating oil, conversely, then showing lubricating oil
It is second-rate.It should be noted that, the color of the transparent cover plate should not be to lube color in oil groove 14
Judgement interfere.
When cover plate 2 is transparent cover plate, its material can be glass or engineering plastics, the engineering plastics
Can be PA (nylon), PP (polypropylene) etc..
In the present embodiment, cover plate 2 is detachably fixed with rib portion 11 and is connected, and cover plate 2 is provided with and oil groove
Removably sealing-plug 4 are installed in the sealing through hole 21 of 14 connections, sealing through hole 21.In specific implementation
In example, sealing through hole 21 axially penetrates through cover plate 2 along cover plate 2.
When injecting lubricating oil into shell 1, sealing-plug 4 is arranged in sealing through hole 21 to prevent shell
Oil leak in 1, removes exhaust check valve 3, and lubricating oil, the profit of injection are injected from steam vent 20
Lubricating oil is flowed into decelerator chamber 12 via oil groove 14, oil filler point 15 successively.Inject after lubricating oil,
Exhaust check valve 3 is arranged in steam vent 20.
When the lubricating oil in shell 1 need to be discharged, without dismantling cover plate 2, sealing-plug 4 is directly removed, is subtracted
Lubricating oil in fast device chamber 12 is discharged via outage 16, oil groove 14, sealing through hole 21 successively.
Further, in the present embodiment, cover plate 2 is realized detachable solid with shell 1 by bolt 5
Fixed connection, the quantity of bolt 5 is two or more, and is arranged in two circles, and a circle bolt 5 is located at cover plate 2
Radial outside, another circle bolt 5 is located at the radially inner side of cover plate 2, and all bolts 5 often enclosed are along week
To interval setting.But it should be noted that, in other embodiments, cover plate 2 can also pass through with shell 1
Other manner is detachably fixed connection to realize.
Further, in the present embodiment, sealing-plug 4 is bolt, and sealing through hole 21 is screwed hole, close
Blocking 4 coordinates with sealing through hole 21 screw thread, unscrewed sealing-plug 4, you can remove sealing-plug 4.But need
Bright, in other embodiments, sealing-plug 4 can also be other constructions, and sealing through hole 21 can also
For unthreaded hole, sealing-plug 4, the construction of sealing through hole 21 should not be limited to the present embodiment.
Further, in the present embodiment, sealing through hole 21 is taking turns interior drive assembly with steam vent 20
It is arranged at intervals in circumference in 180 degree.According to it is noted earlier understand, in the present embodiment, outage 16 with
Steam vent 20 is also arranged at intervals in wheel in the circumference of drive assembly in 180 degree, so, and sealing is logical
Angle of the hole 21 with outage 16 in wheel in drive assembly circumference is consistent, the axle of drive assembly in wheel
Alignment upwards.When discharging the lubricating oil in shell 1, whole lubricating oil in decelerator chamber 12 can lead to
Cross outage 16 to flow in oil groove 14, finally discharged from sealing through hole 21, realize lubrication in shell 1
The discharge of the maximal efficiency of oil.But it should be noted that, in other embodiments, if not considering to take turns interior driving
The expulsion efficiency of lubricating oil in assembly, sealing through hole 21 and the circumference of the drive assembly in wheel of steam vent 20
On can also be arranged at intervals with other angles (such as obtuse angle).
In first alternative of the present embodiment, cover plate 2 is provided with another sealing connected with oil groove 14 and led to
Hole (not shown), another sealing through hole is with steam vent 20 in the circumferentially-spaced of the interior drive assembly of wheel
Set, removably sealing-plug (not shown) is installed in another sealing through hole.Need to be to shell 1
During interior injection lubricating oil, without removing exhaust check valve 3, the sealing-plug is removed, by described another close
Envelope through hole injects lubricating oil into oil groove 14.When the lubricating oil in shell 1 need to be discharged, without removing
State sealing-plug.The present embodiment has the advantage that relative to alternative tool：In wheel zero used in drive assembly
The quantity of part is less.
In second alternative of the present embodiment, cover plate 2 is rigidly fixed with shell 1 and is connected, in this feelings
Under condition, the lubricating oil in shell 1 can be discharged by removing sealing-plug 4.
In the 3rd alternative of the present embodiment, without sealing-plug 4 and sealing through hole 21, in such case
Under, the lubricating oil in shell 1 can be discharged by dismantling cover plate 2, or, driving is total in rotating wheel
Into the lower section for making exhaust check valve 3 be located at axis O, exhaust check valve 3 is removed, passes through steam vent 20
Discharge the lubricating oil in shell 1.The present embodiment has the advantage that relative to alternative tool：Discharge shell 1
Interior lubricating oil is more simple.
In the present embodiment, rib portion 11 is additionally provided with circular axis O annular first and second seal groove (not
Mark), the opening of first and second seal groove is arranged on the axially same of shell 1 with the opening of oil groove 14
Side, first seal groove is located at the radial outside of oil groove 14, second seal groove diametrically position
Between oil groove 14 and decelerator chamber 12.It is provided with the first sealing ring in first seal groove, described the
The second sealing ring is provided with two seal grooves, first and second sealing ring offsets with cover plate 2 in the axial direction,
To prevent the oil leak in oil groove 14.
In the present embodiment, drive assembly also includes center flange axle 6 and rear casing 7 in taking turns.Wherein, in
Entreat flange shaft 6 parallel with axis O, and pass through the centre bore of shell 1.Rear casing 7 and main part 10
The axial other end fix, and surround for accommodating the brake chamber 17 of brake (not shown).
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (11)
1. drive assembly in one kind wheel, including：
Annular outer cover, including the annular body portion axially extended and the radially inner side in the main part
The annular rib portion fixed with axial one end of main part, main part is surrounded space point by the rib portion
Decelerator chamber and motor cavity are divided into, the decelerator chamber is located at the radially inner side of motor cavity；
The annular oil groove of the axis for the circular shell being arranged in the rib portion, the oil groove position
In the radial outside of decelerator chamber, the dorsad axial other end of main part that is open in the axial direction of the oil groove；
Oil filler point and outage in the rib portion are arranged on, the oil groove is diametrically respectively positioned on and subtracts
Between fast device chamber, and connected with the oil groove, decelerator chamber；
Characterized in that, drive assembly also includes in the wheel：Annular cover plate, the opening with the oil groove
Axially opposed to set, the cover plate is fixed with rib portion；
The steam vent on the cover plate is arranged on, the steam vent is connected with oil groove；
Exhaust check valve in the steam vent, the exhaust check valve is used to uni-directionally limit
Air is arranged to air from the oil groove.
2. drive assembly in wheel as claimed in claim 1, it is characterised in that the oil filler point, outage are extremely
One of few is unthreaded hole.
3. drive assembly in wheel as claimed in claim 2, it is characterised in that the oil filler point, outage are extremely
Few quantity of one of them is two or more, the circumferentially spaced arrangement of all oil filler points, outage.
4. drive assembly in wheel as claimed in claim 1, it is characterised in that the cover plate is visual cover plate,
The fuel head of lubricating oil in the oil groove is able to observe that from the cover plate.
5. drive assembly in wheel as claimed in claim 4, it is characterised in that the cover plate is in the axial direction dorsad
The surface of shell is provided with some graduation marks, and the graduation mark is used for the oil for characterizing lubricating oil in the shell
Amount.
6. drive assembly in wheel as claimed in claim 4, it is characterised in that the visual cover plate is from described
Cover plate is able to observe that the transparent cover plate of lube color in the oil groove.
7. drive assembly in wheel as claimed in claim 1, it is characterised in that the cover plate and rib portion are removable
Unload and be fixedly connected；And/or,
The cover plate be provided with the sealing through hole that is connected with the oil groove, the sealing through hole be provided with it is removable
Unload ground sealing-plug；
Drive assembly is attached on automobile and when the sealing-plug is removed from cover plate in the wheel, institute
The lubricating oil in shell is stated successively via the outage, oil groove, sealing through hole discharge.
8. drive assembly in wheel as claimed in claim 7, it is characterised in that described be detachably fixed is connected as
Bolt connection, the sealing-plug is bolt, and the bolt coordinates with sealing through hole whorl.
9. drive assembly in wheel as claimed in claim 7, it is characterised in that the sealing through hole and steam vent
It is arranged at intervals in the wheel in the circumference of drive assembly in 180 degree.
10. drive assembly in the wheel as described in any one of claim 1 to 9, it is characterised in that the steam vent
It is arranged at intervals with outage in the wheel in the circumference of drive assembly in 180 degree.
11. drive assembly in the wheel as described in any one of claim 1 to 9, it is characterised in that the steam vent
With the circumferentially-spaced setting of oil filler point drive assembly in the wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202726.2A CN107289115B (en) | 2016-04-01 | 2016-04-01 | In-wheel drive assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202726.2A CN107289115B (en) | 2016-04-01 | 2016-04-01 | In-wheel drive assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107289115A true CN107289115A (en) | 2017-10-24 |
| CN107289115B CN107289115B (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610202726.2A Active CN107289115B (en) | 2016-04-01 | 2016-04-01 | In-wheel drive assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388447A (en) * | 2018-04-18 | 2019-10-29 | 住友重机械工业株式会社 | Geared system |
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