CN207466365U - Electric drive axle and vehicle - Google Patents
Electric drive axle and vehicle Download PDFInfo
- Publication number
- CN207466365U CN207466365U CN201721646680.XU CN201721646680U CN207466365U CN 207466365 U CN207466365 U CN 207466365U CN 201721646680 U CN201721646680 U CN 201721646680U CN 207466365 U CN207466365 U CN 207466365U
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- Prior art keywords
- gear
- electric drive
- drive axle
- input shaft
- vehicle
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- 230000001050 lubricating effect Effects 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 14
- 239000011796 hollow space material Substances 0.000 abstract description 6
- 239000000314 lubricant Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract description 3
- 239000007865 axle lubricant Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
Present disclose provides a kind of electric drive axle and vehicle, wherein electric drive axle includes the retarder and differential mechanism of housing (10) and setting in the housing, accommodates lubricating fluid in housing, retarder includes：Input shaft (20)；First gear (21)；Synchronizer (23)；Impeller (24)；Output shaft (30)；Second gear (31)；Third gear (32)；Actuator, differential mechanism include gear ring (40).During low vehicle speeds, gear ring stirs lubricating fluid, and partial lubrication liquid is sucked its hollow space by the rotation of input shaft, to clutch shaft bearing lubrication.Wheel rotation, blade play the role of pump, increase the lubrication liquid measure of sucking input shaft.During high vehicle speeds, output shaft high-speed rotation, impeller high-speed rotation, blade makes lubricating fluid be inhaled into the hollow space of input shaft, to clutch shaft bearing lubrication.So as to solve the problems, such as that vehicle electric drive axle lubricant effect when running at high speed is poor, while improves the lubricant effect of vehicle electric drive axle when running at a low speed.
Description
Technical field
The utility model is related to technical field of vehicle, more particularly to a kind of electric drive axle and vehicle.
Background technology
In the design of hybrid vehicle, in order to realize four-wheel drive, it is common practice that added at the rear portion of vehicle by electricity
The electric drive axle of machine, retarder and differential mechanism composition, the power from motor are transferred to vehicle by retarder and differential mechanism successively
Left and right semiaxis.
In the related art, when low vehicle speeds, motor exports power to the input shaft of retarder, and input shaft drives
Gear train and then output shaft and differential mechanism are driven, it is hollow that the lubricating fluid that differential mechanism gear ring stirs can be sucked its by the rotation of input shaft
Part, and pass through centrifugal force and lubricating fluid is lubricated cooling supplied to components such as needle bearings.It runs at high speed when vehicle is in
When, motor speed can be caused excessively high, and then lead to motor damage, need input shaft and the power of gear train transmitting disconnection, it is defeated
The rotating speed for entering axis and motor is gradually decrease to zero.The centrifugal force that lubricating fluid is received at this time is smaller, and lubricating fluid will lose to flow from oilhole
The power gone out can not be lubricated needle bearing cooling, and gear, also in high-speed rotation, the heat of generation can be by needle bearing
Ablation is even melted, and causes driving unit fault.
Utility model content
In view of this, the utility model is directed to a kind of electric drive axle, to solve vehicle electric drive when running at high speed
The problem of lubricant effect difference of bridge leads to driving unit fault, while vehicle electric drive axle when running at a low speed can also be improved
Lubricant effect.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of electric drive axle including housing and retarder and differential mechanism disposed in the housing, holds in the housing
Receiving has lubricating fluid, and the retarder includes：Input shaft, for being connected with motor, the input shaft is hollow shaft and offers
The oilhole of radial direction；First gear is rotatably sleeved on by clutch shaft bearing on the input shaft, and the clutch shaft bearing is arranged on
Corresponding to the position of the oilhole；Synchronizer is set on the input shaft to make the input shaft and first tooth
Wheel engagement disconnects；Impeller is rotatably sleeved on the input shaft and is formed with blade；Output shaft；Second gear, set
It is located on the output shaft and is engaged with the first gear；Third gear, be set on the output shaft for it is described
Differential drive；Actuator is connected on the output shaft and the impeller, the differential is driven when the output shaft rotates
Device is included for the gear ring with third gear engaged transmission.
Further, the impeller includes toothed region, and the blade is fixedly connected with the toothed region, and the actuator is
The 4th gear being set on the output shaft, the 4th gear are engaged with the toothed region.
Further, end face opposite with the blade in the toothed region is formed with the first groove of annular.
Further, at least end face of the 4th gear is formed with the second groove of annular.
Further, the impeller and the actuator are respectively plastic article.
Further, the oilhole includes multiple.
Further, the impeller is disposed proximate to the end face opening of the input shaft.
Further, the gear shifting actuating mechanism for driving the synchronizer is additionally provided in the housing.
Further, the clutch shaft bearing is needle bearing.
Relative to the prior art, electric drive axle described in the utility model has the advantage that：Vehicle when running at a low speed,
The gear ring of differential mechanism stirs the lubricating fluid in housing, carries out splashing lubrication, meanwhile, the rotation of input shaft can moisten a part
Synovia sucks its hollow space, and passes through oilhole and cooling is lubricated to clutch shaft bearing.Further, since work of the impeller in actuator
With lower in rotary state, blade can play the role of pump, increase the lubrication liquid measure of sucking input shaft.Vehicle is being run at high speed
When, cause the rotating speed of input shaft slack-off due to having cut off motor power, the sucking action of oil is gradually weakened, but output shaft at this time
Still high-speed rotation, actuator can drive impeller high-speed rotation, and blade can make lubricating fluid be inhaled into the hollow of input shaft
Part, and pass through oilhole and cooling is lubricated to clutch shaft bearing.So as to solve the profit of vehicle electric drive axle when running at high speed
The problem of sliding effect difference leads to driving unit fault, while also improve the lubrication effect of vehicle electric drive axle when running at a low speed
Fruit.
The another object of the utility model is to propose a kind of vehicle, to solve vehicle electric drive axle when running at high speed
The problem of lubricant effect difference leads to driving unit fault, while the lubrication of vehicle electric drive axle when running at a low speed can also be improved
Effect.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of vehicle, the vehicle are included according to above-described electric drive axle.
The vehicle is identical relative to advantage possessed by the prior art with above-mentioned electric drive axle, and details are not described herein.
Description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type do not form the improper restriction to the utility model for explaining the utility model.
In attached drawing：
Fig. 1 is the structure diagram of the electric drive axle described in the utility model embodiment；
Structure diagrams of the Fig. 2 for retarder parts in the electric drive axle described in the utility model embodiment；
Structure diagrams of the Fig. 3 for impeller in the electric drive axle described in the utility model embodiment.
Reference sign：
10- housings, 20- input shafts, 21- first gears, 22- clutch shaft bearings, 23- synchronizers, 24- impellers, 241- blades,
242- toothed regions, the first grooves of 243-, 201- oilholes, 30- output shafts, 31- second gears, 32- third gears, the 4th teeth of 33-
Wheel, the second grooves of 331-, 40- gear rings, 50- gear shifting actuating mechanisms.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the utility model can
To be combined with each other.
In addition, the noun of locality " interior " is previously mentioned in the embodiment of the utility model, " outer " is the sheet for being directed to corresponding parts
For body profile, the terms such as " first ", " second " be in order to distinguish an element and another element, without succession and
Importance.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Electric drive axle includes at least motor, retarder and differential mechanism, and the power from motor passes through retarder and difference successively
Fast device is transferred to the left and right semiaxis of vehicle.As shown in Figure 1, retarder and differential mechanism are separately positioned in housing 10, in housing 10
Lubricating fluid is accommodated, lubricating fluid is formed in the bottom of housing 10 under the effect of gravity.Referring to Figures 1 and 2, retarder includes：It is defeated
Enter axis 20, the output shaft (not shown) of motor be connected to for example, by parts such as splines, will the power from motor it is defeated
Enter into retarder, input shaft 20 is hollow shaft and offers the oilhole 201 of radial direction；First gear 21, passes through clutch shaft bearing
22 are rotatably sleeved on input shaft 20, and clutch shaft bearing 22 is arranged on the position corresponding to oilhole 201；Synchronizer 23, is arranged
For engaging or disconnect input shaft 20 and first gear 21 on input shaft 20；Impeller 24, is rotatably sleeved on input shaft
On 20 and it is formed with blade 241；Output shaft 30；Second gear 31 is set on output shaft 30 and is engaged with first gear 21；
Third gear 32, be set on output shaft 30 for differential drive；Actuator is connected on output shaft 30 and is exporting
Impeller 24 is driven when axis 30 rotates, differential mechanism is included for the gear ring 40 with 32 engaged transmission of third gear.
For convenience, in the present embodiment, above-mentioned electric drive axle is used to driving the trailing wheel of vehicle, i.e., trailing wheel by
Motor drives, while the front-wheel of vehicle provides power by engine, and in other embodiments possibles, vehicle can also use
Other power combination forms, as long as the lubrication structure in present embodiment can be utilized.
When vehicle is when running at a low speed, vehicle is in four-wheel drive state, i.e. engine driving front-wheel, electric drive axle driving
Trailing wheel.Specific power transmission process at trailing wheel is：Motor outputs power to input shaft 20；Synchronizer 23 is by input shaft 20
It is engaged with first gear 21 so that first gear 21 rotates together with input shaft 20；First gear 21 drives the be engaged with
Two gears 31 rotate；Second gear 31 and third gear 32 are respectively fixedly connected on output shaft 30, in this way, output shaft 30, the second tooth
Wheel 31 and third gear 32 rotate together；Third gear 32 drives the gear ring 40 of differential mechanism being engaged with to rotate.Gear ring 40 exists
During rotation, the lubricating fluid of 10 bottom of housing is stirred, carries out splashing lubrication.Input shaft 20 is hollow inside it in rotation simultaneously
Part forms negative pressure, can suck a part of lubricating fluid wherein, under the influence of centrifugal force, lubricating fluid is flowed from oilhole 201
Go out, so as to be lubricated cooling to clutch shaft bearing 22.In addition, when output shaft 30 rotates, actuator driving impeller 24 rotates, leaf
Blade 241 on wheel 24 can play the role of pump in rotation, increase the lubricating fluid for the hollow space for being drawn into input shaft 20
Amount, so as to improve the effect of lubrication.
When vehicle is when running at high speed, in order to protect motor, needs to stop the power output of motor and cut off motor with subtracting
Power transmission between fast device.Specifically, input shaft 20 and first gear 21 are disconnected by synchronizer 23 so that 21 energy of first gear
It is enough to dally in the periphery of input shaft 20.At this point, vehicle is in front wheel drive state, trailing wheel is driven wheel.In this case, by
Zero is gradually decrease in the rotating speed of input shaft 20 being connected with motor, the suction of lubricating fluid is gradually weakened, and is run at high speed
Trailing wheel by power reverse transmit sequentially into gear ring 40, third gear 32, output shaft 30, second gear 31 and first gear
21, there are larger speed discrepancies between first gear 21 and input shaft 20, still need to 22 lubrication of clutch shaft bearing.Due to this
When output shaft 30 in still high-speed rotation, actuator can drive 24 high-speed rotation of impeller, and blade 241 can be inhaled lubricating fluid
Enter the hollow space to input shaft 20, and pass through oilhole 201 and cooling is lubricated to clutch shaft bearing 22, exist so as to solve vehicle
The problem of lubricant effect difference of electric drive axle leads to driving unit fault when running at high speed.
The lubrication form that present embodiment provides can be realized in the case of not by additional power plant to housing
The forced feed lubrication of 10 inner components, this is mechanical simple in structure, and operating is reliable, and due to that need not increase electronic system, into
This is cheap.
Oilhole 201 can be including multiple, and multiple oilholes 201 can be lubricated clutch shaft bearing 22 cooling simultaneously, enhance
The effect of lubrication, for example, Fig. 1 and Fig. 2 shows embodiment in, oilhole 201 include two.
As depicted in figs. 1 and 2, impeller 24 is disposed proximate to the end face opening of input shaft 20, in this way, blade 241 is close
In the opening, the hollow space of input shaft 20 can be quickly entered by rotating the lubricating fluid brought by blade 241, reduce lubricating fluid
Loss, to improve lubrication effect.
In addition, clutch shaft bearing 22 can be needle bearing, needle bearing has enough bearing capacitys, and its outer diameter is small,
Excessive radial space will not be occupied mounted on input shaft 20.
Above-mentioned vehicle switches in the state for running at a low speed and running at high speed to be realized by synchronizer 23, synchronizer 23
It is connected on input shaft 20 and rotates therewith, the gear shifting actuating mechanism for driving synchronizer 23 is additionally provided in housing 10
50, driver controls the action of synchronizer 23 when carrying out gear switch by gear shifting actuating mechanism 50, realizes 20 He of input shaft
The engagement or disconnection of first gear 21.Synchronizer 23 is the common parts in vehicular field, its concrete structure is not done here
It is specific to limit.
The structure of actuator and impeller 24 can be accomplished in several ways, such as actuator can include being set in output
Drive pulley on axis 30, impeller 24 are formed as driven pulley, realize that power transmits by the form of belt transmission.At this
In the open specific embodiment provided, as shown in Figure 1 to Figure 3, impeller 24 includes toothed region 242, blade 241 and toothed region
242 are fixedly connected, and actuator is the 4th gear 33 being set on output shaft 30, and the 4th gear 33 is engaged with toothed region 242, this
Sample sets only by impeller 24 that idle running is set on input shaft 20 and on output shaft 30 and can together be rotated with output shaft 30
The 4th gear 33 can realize the effect of above-mentioned lubrication.
Further, as shown in figure 3, end face opposite with blade 241 in toothed region 242 is formed with the first groove of annular
243, in this way, in the case of the function of ensureing impeller 24, the weight and rotary inertia of impeller 24 can be reduced, makes overall structure
Lightweight, the energy loss brought when impeller 24 rotates can be reduced.
Similar therewith, at least end face of the 4th gear 33 could be formed with the second groove 331 of annular, to reduce the 4th
The weight and rotary inertia of gear 33.As depicted in figs. 1 and 2, in present embodiment, two end faces of the 4th gear 33 are respectively formed
There is the second groove 331, and two the second grooves 331 are arranged symmetrically, so that stress equalization.
It in addition, impeller 24 and actuator can be respectively the smaller nonmetallic materials of density, such as can be plastic article, have
There is the advantages of lightweight, corrosion-resistant, at low cost.
The disclosure also provides a kind of vehicle, is configured with above-mentioned electric drive axle.The vehicle has above-mentioned electric drive axle
Whole advantageous effects, details are not described herein again.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of electric drive axle, which is characterized in that including housing (10) and the retarder being arranged in the housing (10) with it is poor
Fast device accommodates lubricating fluid in the housing (10),
The retarder includes：
Input shaft (20), for being connected with motor, the input shaft (20) is hollow shaft and offers the oilhole of radial direction
(201)；
First gear (21) is rotatably sleeved on by clutch shaft bearing (22) on the input shaft (20), the clutch shaft bearing
(22) it is arranged on the position corresponding to the oilhole (201)；
Synchronizer (23) is set on the input shaft (20) to make the input shaft (20) and the first gear (21)
Engagement disconnects；
Impeller (24) is rotatably sleeved on the input shaft (20) and is formed with blade (241)；
Output shaft (30)；
Second gear (31) is set on the output shaft (30) and is engaged with the first gear (21)；
Third gear (32), be set on the output shaft (30) for the differential drive；
Actuator is connected on the output shaft (30) and drives the impeller (24) when the output shaft (30) rotates,
The differential mechanism is included for the gear ring (40) with the third gear (32) engaged transmission.
2. electric drive axle according to claim 1, which is characterized in that the impeller (24) includes toothed region (242), described
Blade (241) is fixedly connected with the toothed region (242), and the actuator is the 4th tooth being set on the output shaft (30)
It takes turns (33), the 4th gear (33) is engaged with the toothed region (242).
3. electric drive axle according to claim 2, which is characterized in that on the toothed region (242) with the blade (241)
Opposite end face is formed with the first groove (243) of annular.
4. electric drive axle according to claim 2, which is characterized in that at least end face of the 4th gear (33) is formed
There is the second groove (331) of annular.
5. electric drive axle according to claim 1, which is characterized in that the impeller (24) and the actuator are respectively moulded
Materials and parts.
6. electric drive axle according to claim 1, which is characterized in that the oilhole (201) is including multiple.
7. electric drive axle according to claim 1, which is characterized in that the impeller (24) is disposed proximate to the input shaft
(20) end face opening.
8. electric drive axle according to claim 1, which is characterized in that be additionally provided in the housing (10) for driving
State the gear shifting actuating mechanism (50) of synchronizer (23).
9. electric drive axle according to claim 1, which is characterized in that the clutch shaft bearing (22) is needle bearing.
10. a kind of vehicle, which is characterized in that the vehicle includes the electric drive axle according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646680.XU CN207466365U (en) | 2017-11-30 | 2017-11-30 | Electric drive axle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646680.XU CN207466365U (en) | 2017-11-30 | 2017-11-30 | Electric drive axle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207466365U true CN207466365U (en) | 2018-06-08 |
Family
ID=62257509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721646680.XU Active CN207466365U (en) | 2017-11-30 | 2017-11-30 | Electric drive axle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207466365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296201A (en) * | 2019-08-12 | 2019-10-01 | 珠海格力电器股份有限公司 | Gear, rotating assembly, retarder and vehicle |
-
2017
- 2017-11-30 CN CN201721646680.XU patent/CN207466365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296201A (en) * | 2019-08-12 | 2019-10-01 | 珠海格力电器股份有限公司 | Gear, rotating assembly, retarder and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191119 Address after: 071000 No.75, Dongsheng Road, Lianchi District, Baoding City, Hebei Province Patentee after: Beehive transmission technology Hebei Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |
|
| TR01 | Transfer of patent right |