CN206943343U - The single planetary transmission of electric automobile - Google Patents
The single planetary transmission of electric automobile Download PDFInfo
- Publication number
- CN206943343U CN206943343U CN201720746583.1U CN201720746583U CN206943343U CN 206943343 U CN206943343 U CN 206943343U CN 201720746583 U CN201720746583 U CN 201720746583U CN 206943343 U CN206943343 U CN 206943343U
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- China
- Prior art keywords
- gear
- motor
- output shaft
- electric automobile
- brake
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Abstract
The utility model discloses a kind of single planetary transmission of electric automobile, including the first motor, the second motor and planetary gears, in addition to two brakes for being respectively used to brake the first motor and the second motor output shaft；The planetary gears includes the sun gear being solidly set on the first motor output shaft, the planetary gear, the planet carrier with power output shaft and the external toothing engaged with planetary gear that are engaged with sun gear, and the external toothing is provided with external tooth；The biased gear of synchronous rotation is connected with the output shaft of second motor, the biased gear engages with external tooth；Clutch is provided between the sun gear and external toothing, when the clutch combines, the sun gear and external toothing can be connected.The utility model disclosure satisfy that the speed change request under electric automobile difference operating mode, have it is compact-sized, good reliability, lubricate the advantages that abundant.
Description
Technical field
The utility model belongs to technical field of mechanical transmission, is related to a kind of single planetary transmission of electric automobile.
Background technology
In order to make full use of the wide advantage of electric machine speed regulation scope, electric automobile generally use electrodeless variable-speed, in the prior art,
Have and realize electrodeless variable-speed using planetary gears, but the structure is difficult to the best match with the various operating modes of vehicle, example
Such as, into motor charging process, power of motor is unnecessarily being wasted in sliding or travelling, in climbing or heavy duty starting, and it is difficult
To meet big torque-demand.
Utility model content
To solve above technical problem, the utility model provides a kind of single planetary transmission of electric automobile, passes
Efficiency of movement is high, and disclosure satisfy that the speed change request under electric automobile difference operating mode.
Its technical scheme is as follows：
A kind of single planetary transmission of electric automobile, including including the first motor, the second motor and planetary gear machine
Structure, in addition to two brakes for being respectively used to brake the first motor and the second motor output shaft；
The planetary gears includes the sun gear being solidly set on the first motor output shaft, the planet engaged with sun gear
Gear, the planet carrier with power output shaft and the external toothing engaged with planetary gear, the external toothing are provided with external tooth；
The biased gear of synchronous rotation is connected with the output shaft of second motor, the biased gear is nibbled with external tooth
Close；
It is provided with clutch between the sun gear and external toothing, can be by the sun gear and outer when the clutch combines
Gear ring is connected.
Using the gearbox of above structure, in driving, charging and coasting mode, the electricity of brake first can be utilized
One in machine and the second motor, i.e., using single electrical machine working mode；Two brakes unclamp simultaneously, planetary gears work,
Entirety is equivalent to rotating speed coupler, into speed governing mode of operation, to adapt to low torque demand of the vehicle in the case of running at high speed；
When vehicle is in climbing and heavy load starting, then can by clutch combination sun gear and gear ring, now planetary gears into
For rigid body, torque coupling is carried out, to meet its big torque-demand.
Further, the brake includes brake outer cover, the output hub being installed in rotation in brake outer cover
With the platen of the face output hub, the brake outer cover is fixed on gear box casing, can slided on the brake outer cover inwall
At least two slip steel disks are embedded with dynamicly, output shaft mounting hole are provided with the middle part of output hub, outer is provided with frictional disk, the frictional disk
Stretch between two neighboring slip steel disk, export and be connected with holding stage clip between hub and platen, be distributed with least on the outside of platen
Two hydraulic jacks, piston are slidably mounted with the hydraulic jack, the piston is rigidly connected on platen.Using this
Brake in the form of piston, can brake force of the Reliable guarantee when the output shaft to the first motor and the second motor is braked,
Improve the reliability of gearbox.
In order to which the brake force that hydraulic jack and piston provide is evenly applied on platen, to ensure that braking procedure is steady
It is non-slip, the hydraulic jack altogether be 4, along platen on the outside of external circumferential be uniformly distributed.
Further, input gear is installed with the output shaft of second motor, centre is engaged with the input gear
Gear, the idler gear engage with biased gear, and the idler gear and biased gear pass through intermediate gear shaft and biasing respectively
Gear shaft is pivotally mounted in transmission housing body, and so, the second motor kinetic energy is delivered in biased gear through idler gear,
Transmission internal can be facilitated to arrange, be easy to assemble, and increase the speed adjustable range of the second motor.
Further, a grease pump driving tooth is arranged with the output shaft of the power output shaft and the second motor
Wheel, two lubricating oil pump driving gears are engaged with a lubricating oil pump driven gear, each grease pump driven tooth respectively
One grease pump of each driving is taken turns, corresponding oil duct is respectively equipped with two output shafts, so as to be driven using two output shaft self powers
Two grease pumps are moved, to ensure the proper lubrication to gearbox.
Beneficial effect：Using the single planetary transmission of the electric automobile of above technical scheme, electronic vapour disclosure satisfy that
Speed change request under car difference operating mode, have it is compact-sized, good reliability, lubricate the advantages that abundant.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the installation diagram of the one of specific embodiment of the utility model；
Fig. 3 is the structural representation of planetary gears；
Fig. 4 is the structural representation of brake；
Fig. 5 is the lubrication system schematic diagram on the second motor output shaft.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, by the following examples, and tie
Accompanying drawing is closed, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only solving
The utility model is released, is not used to limit the utility model.
The single planetary transmission of a kind of electric automobile as depicted in figs. 1 and 2, including the electricity of gear box casing 8, first
Machine 1, the second motor 2 and planetary gears 3, the first motor 1 and the second motor 2 are arranged on the outside of gear box casing 8, and it is exported
End is each provided with a brake 4, and for braking the output shaft of the motor 2 of the first motor 1 and second, planetary gears 3 is pacified
In gear box casing 8.
Input gear 21 is installed with the output shaft of second motor 2, idler gear 22 is engaged with the input gear 21, with
Idler gear 22 is engaged with biased gear 6, and the idler gear 22 and biased gear 6 pass through intermediate gear shaft 23 and biased teeth respectively
Wheel shaft 61 is pivotally mounted in gear box casing 8, biased gear 6 and the external toothing of external toothing 34, and can be in the second motor 2
Drive under with its output shaft synchronous rotate.
Fig. 3 shows the concrete structure of planetary gears 3, sun gear 31, the planetary gear 32 engaged with sun gear 31,
Planet carrier 33 with power output shaft 5 and the external toothing 34 engaged with planetary gear 32.
Sun gear 31 is solidly set on the output shaft 1a of the first motor 1, and external toothing 34 is located at the outside of sun gear 31, sun gear 31
Multiple planetary gears 32 are engaged between external toothing 34, clutch 7 is also equipped between sun gear 31 and external toothing 34, from
When clutch 7 combines, the sun gear 31 and external toothing 34 can be connected.
The side of external toothing 34 is fixedly connected with the external tooth 34a of fluted disc structure to be nibbled with biased gear 6 by retainer 34b
Close, by bearings between external tooth 34a and power output shaft 5, between the planet carrier 33 and power output shaft 5 of planetary gear 32
Connected by spline.
Fig. 4 is the structural representation for the brake 4 being set on the output shaft 2a of the second motor 2, and the brake 4 includes braking
Device outer cover 41, the platen 43 for exporting hub 42 and face the output hub 42 being installed in rotation in brake outer cover 41, braking
Device outer cover 41 is fixed on gear box casing 8, and the inwall of brake outer cover 41 is provided with chute 41a, and is slideably embedded with 4
Individual slip steel disk 44, chute 41a left end is fixed with a fixed steel disk 44a in figure.
Export the middle part of hub 42 and be provided with output shaft mounting hole 42a, and the second motor is set to by output shaft mounting hole 42a admittedly
On 2 output shaft 2a, output hub 42 outer is provided with 4 frictional disks 45 to stretch out, and the frictional disk 45 stretches into two neighboring cunning
Between dynamic steel disk 44.
Platen 43 is rotatably sleeved on output shaft 2a by rolling bearing, is exported and is provided between hub 42 and platen 43
Keep stage clip 46, under normality, i.e., non-brake state when, keep frictional disk 45 not to be in close contact with slip steel disk 44, in platen 43
Outside has been uniformly distributed circumferentially four hydraulic jacks 47, and piston 48, piston 48 are slidably mounted with the hydraulic jack 47
It is rigidly connected on platen 43, when being passed through hydraulic oil liquid into hydraulic jack 47 and then promoting piston 48 to be moved to the left, pressure
Disk 43, which can force, slides the transverse shifting of steel disk 44 and extrusion friction disk 45, so as to by the output shaft 2a and speed change of the second motor 2
Tank shell 8 is locked, to realize the braking to second motor 2 output shaft 2a.
Another brake 4, that is, be used to braking the first motor 1 output shaft 1a brake 4 and the structure of clutch 7 with it is above-mentioned
The structure for the brake 4 being set on the output shaft 2a of the second motor 2 is similar, using oil cylinder piston form, for braking first
The output shaft 1a of motor 1 brake 4 is acted directly on sun gear 31.
For convenience of lubrication, a grease pump driving tooth is arranged with the output shaft of the motor 2 of power output shaft 5 and second
Wheel 9, two lubricating oil pump driving gears 9 are engaged with a lubricating oil pump driven gear 9a, each grease pump driven tooth respectively
Take turns 9a respectively one grease pump 9b of driving.
Fig. 5 show upper left side in Fig. 1, that is, the schematic diagram for the lubrication system being arranged on the output shaft 2a of the second motor 2,
Lubricating oil pump driving gear 9 is solidly set on the output shaft 2a of the second motor 2, and lubricating oil pump driven gear 9a is solidly set on grease pump
Engage on 9b oil pump shaft and with lubricating oil pump driving gear 9, become with driving grease pump 9b, grease pump 9b to be arranged on
In fast tank shell 8.
Be provided with corresponding oil leab on the output shaft 2a of the motor 2 of power output shaft 5 and second, and with corresponding lubrication
Oil pump 9b is connected, to be lubricated to output shaft, planetary gears, brake and clutch.
It should be noted that above example is only to illustrate technical solutions of the utility model rather than restriction technologies scheme,
Although applicant is explained in detail with reference to preferred embodiment to the utility model, one of ordinary skill in the art should manage
Solution, those to technical solutions of the utility model carry out modification or equivalent substitution, it is impossible to depart from the technical program objective and
Scope, it all should cover among the utility model claims scope.
Claims (5)
1. a kind of single planetary transmission of electric automobile, including the first motor (1), the second motor (2) and planetary gear machine
Structure (3), it is characterised in that：Also include two brakes for being respectively used to brake the first motor (1) and the second motor (2) output shaft
(4)；
The planetary gears (3) includes the sun gear (31) being solidly set on the first motor (1) output shaft and sun gear (31)
The planetary gear (32) of engagement, the planet carrier (33) with power output shaft (5) and the external toothing engaged with planetary gear (32)
(34), the external toothing (34) is provided with external tooth (34a)；
The biased gear (6) of synchronous rotation is connected with the output shaft of second motor (2), the biased gear (6) with
External tooth (34a) engages；
Clutch (7) is provided between the sun gear (31) and external toothing (34), can be by described in when the clutch (7) combines
Sun gear (31) and external toothing (34) are connected.
2. the single planetary transmission of electric automobile according to claim 1, it is characterised in that：The brake (4)
Including brake outer cover (41), the output hub (42) being installed in rotation in brake outer cover (41) and the face output hub
(42) platen (43), the brake outer cover (41) are fixed on gear box casing (8), on brake outer cover (41) inwall
At least two slip steel disks (44) are slideably embedded with, are provided with output shaft mounting hole (42a) in the middle part of output hub (42), outer is set
Have frictional disk (45), the frictional disk (45) is stretched between two neighboring slip steel disk (44), output hub (42) and platen (43) it
Between be connected with and keep stage clip (46), at least two hydraulic jacks (47) are distributed with the outside of the platen (43), the hydraulic jack (47)
In be slidably mounted with piston (48), the piston (48) is rigidly connected on platen (43).
3. the single planetary transmission of electric automobile according to claim 2, it is characterised in that：The hydraulic jack
(47) it is 4 altogether, is uniformly distributed along platen (43) outside external circumferential.
4. the single planetary transmission of electric automobile according to claim 2, it is characterised in that：Second motor
(2) input gear (21) is installed with output shaft, idler gear (22), the center tooth are engaged with the input gear (21)
Wheel (22) engages with biased gear (6), and the idler gear (22) and biased gear (6) are respectively by intermediate gear shaft (23) and inclined
Gear shaft (61) is put to be pivotally mounted in gear box casing (8).
5. the single planetary transmission of electric automobile according to any one of claim 1 to 4, it is characterised in that：Institute
State and a lubricating oil pump driving gear (9), two institutes are arranged with the output shaft of power output shaft (5) and the second motor (2)
State lubricating oil pump driving gear (9) and be engaged with a lubricating oil pump driven gear (9a), each lubricating oil pump driven gear respectively
(9a) respectively drives a grease pump (9b).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017203477577 | 2017-04-01 | ||
| CN201720347757 | 2017-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943343U true CN206943343U (en) | 2018-01-30 |
Family
ID=61365950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720746583.1U Expired - Fee Related CN206943343U (en) | 2017-04-01 | 2017-06-22 | The single planetary transmission of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206943343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091305A (en) * | 2017-04-01 | 2017-08-25 | 重庆电子工程职业学院 | Planetary transmission for electric automobile |
| CN112747090A (en) * | 2021-01-25 | 2021-05-04 | 重庆胜特佳机械有限公司 | Double-power multi-mode stepless speed change coupling output mechanism |
-
2017
- 2017-06-22 CN CN201720746583.1U patent/CN206943343U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091305A (en) * | 2017-04-01 | 2017-08-25 | 重庆电子工程职业学院 | Planetary transmission for electric automobile |
| CN107091305B (en) * | 2017-04-01 | 2023-11-07 | 重庆电子工程职业学院 | Planetary gear gearbox for electric automobile |
| CN112747090A (en) * | 2021-01-25 | 2021-05-04 | 重庆胜特佳机械有限公司 | Double-power multi-mode stepless speed change coupling output mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 Termination date: 20190622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |