CN201934596U - Automatic gearbox for electric automobile - Google Patents
Automatic gearbox for electric automobile Download PDFInfo
- Publication number
- CN201934596U CN201934596U CN201120061867XU CN201120061867U CN201934596U CN 201934596 U CN201934596 U CN 201934596U CN 201120061867X U CN201120061867X U CN 201120061867XU CN 201120061867 U CN201120061867 U CN 201120061867U CN 201934596 U CN201934596 U CN 201934596U
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- clutch
- gear
- planet carrier
- platen
- oil cylinder
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- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000007935 neutral effect Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 2
- 230000033001 locomotion Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
An automatic gearbox for an electric automobile relates to an improvement on an automobile-used speed changing device. A connecting plate, a driving gear, a planetary speed reducing mechanism, a bidirectional clutch, a left operation oil cylinder and a right operation oil cylinder are installed inside a box body; the connecting plate 2 is connected with a power input shaft 1 through a spline; an internal and external spline connecting sleeve is sheathed with the bidirectional clutch; the left operation oil cylinder and the right operation oil cylinder are arranged on the outer sides of a left clutch and a right clutch respectively, and are installed on the box body; and pistons of the left operation oil cylinder and the right operation oil cylinder are propped against the outer sides of a left pressure plate and a right pressure plate respectively. The automatic gearbox is a two-gear four-function automatic gearbox, wherein the two-gear four-function automatic gearbox can achieve the free switching between a high gear and a low gear under the operation of an electrical control hydraulic system on the premise that the power does not need to be shut off when an automobile runs, and can also achieve the switching between a parking brake gear and a neutral position.
Description
Technical field
The utility model relates to speed change gear, the particularly automobile improvement of speed change gear.
Background technique
As everyone knows, electric vehicle is as the new energy traffic tool of energy-saving and emission-reduction, by being favored in the whole world.In actual design and the use,, also be difficult to satisfy simultaneously and run at high speed (more than the 120km/h) and low speed climbing (gradient more than 25%) performance demands though motor in electric automobile has the speed range of 0～9000rpm variable; Exempt to have reached by force, but required excessive a series of drawbacks such as efficient is on the low side, mileages of continuation decline, the increase of controller manufacture cost, shorter battery life of having brought of electric current during also owing to the climbing of its low speed.As adopt traditional synchronizer formula gear-shift transmission, then when the gear shift position, need cut off power with clutch, otherwise the gear shift that just can not be well on; Because the drive motor acceleration performance of electric vehicle is considerably beyond fuel engine, the deficiency of the combination force of clutch and skid and become a great problem; Increase huge volume behind the clutch simultaneously, car load is arranged increases difficulty.So no-clutch and can realize that automatically shift cage has become numerous electric vehicle scientific worker research objects according to operating mode.
The model utility content
The purpose of this utility model provides a kind of used for electric vehicle automatic transmission case, the utility model provides a kind of and need not to cut off under the prerequisite of power in automobile running, realizing freely switching between " top gear " and " bottom gear " under the operation of electronically controlled hydraulic system, can also realize " the four function second gear automatic transmission case " of the switching between " stopping brake shelves " and " neutral gear ".
Used for electric vehicle automatic transmission case of the present utility model is equipped with land (2), driving gear (9) and planetary gear speed reducing mechanism, twin-direction clutch, left and right sides operating cyloinder in casing; Land 2 adopts spline to connect with power input shaft 1; Wherein:
Planetary gear speed reducing mechanism, constitute by left planet carrier (4), planet pin (5), planetary pinion (6), ring gear (7), right planet carrier (8) and sun wheel shaft (19), driving gear (9) fixedly mounts on the right planet carrier (8), and on sun wheel shaft (19), driving gear (9), right planet carrier assembly parts are formed the Spielpassung exercise group with sun wheel shaft (19); Ring gear (7) is fixedly connected on land (2) side, left side planet carrier (4) be arranged in the middle of the ring gear (7) and and land (2) between be Spielpassung, planetary pinion (6) is fixedly installed on the planet pin (5), form the Spielpassung exercise group between them, planet pin (5) two ends are installed on respectively on left planet carrier (4) and the right planet carrier (8), form the planet carrier mechanism in the planetary gear speed reducing mechanism;
Twin-direction clutch is made of left clutch shell (12), left wet friction sheet (13), left steel disc (14), left platen (15), right clutch shell (18), wet friction sheet (20), steel disc (21), right platen (22), interior external splines connecting sleeve (24), elastic element (25); Interior external splines connecting sleeve (24) adopts spline package on sun wheel shaft (19); Some left wet friction sheets (13) and left steel disc (14) are crisscross arranged and constitute left clutch between left clutch shell (12) and left platens (15), and left clutch shell (12) is fixed on the driving gear (9); , some wet friction sheets (20) and steel disc (21) are crisscross arranged and constitute right clutch between right platen (22) and right clutch shells (18), and right clutch shell (18) is fixed on the casing; The external tooth of wet friction sheet (13), (20) is inserted in respectively in the groove of left and right clutch housing (12), (18), and steel disc (14), (21) are splined with interior external splines connecting sleeve (24).Be provided with elastic element (25) between left side platen (15) and the right platen (22);
Left and right operating cyloinder is made of left cylinder body (10), left piston (11), right cylinder body (16), right piston (17), is ring-like oil cylinder; Left side cylinder body (10) and right cylinder body (16) are arranged at the left clutch shell (12) and right clutch shell (18) outside respectively and are installed on the casing, and left piston (11) and right piston (17) withstand on the left platen (15) and right platen (22) outside respectively.
Used for electric vehicle automatic transmission case of the present utility model, can satisfy electric vehicle need not to cut off under the prerequisite of power according to pavement behavior under steam, realizing freely switching between " top gear " and " bottom gear " under the operation of electronically controlled hydraulic system, but also can realize the switching of " stopping brake shelves " and " neutral gear " according to driver's intention, the utility model is the automatic transmission case of four function second gears.
Description of drawings
Fig. 1 is the utility model structural representation.
Symbol description among the figure: power input shaft 1, land 2, roller thrust bearing 3, left side planet carrier 4, planet pin 5, planetary pinion 6, ring gear 7, right planet carrier 8, driving gear 9, left side cylinder body 10, left piston 11, left clutch shell 12, wet friction sheet 13, steel disc 14, left side platen 15, right cylinder body 16, right piston 17, right clutch shell 18, sun wheel shaft 19, wet friction sheet 20, steel disc 21, right platen 22, spacing with jump ring 23, interior external splines connecting sleeve 24, elastic element 25.
Embodiment
Below in conjunction with accompanying drawing and with illustrated embodiments the utility model is done detailed explanation.
Consult Fig. 1, the used for electric vehicle automatic transmission case is equipped with land (2), driving gear (9) and planetary gear speed reducing mechanism, twin-direction clutch, left and right sides operating cyloinder in casing; Land 2 adopts spline to connect with power input shaft 1; Wherein:
Planetary gear speed reducing mechanism, constitute by left planet carrier (4), planet pin (5), planetary pinion (6), ring gear (7), right planet carrier (8) and sun wheel shaft (19), driving gear (9) fixedly mounts on the right planet carrier (8), and on sun wheel shaft (19), driving gear (9), right planet carrier assembly parts are formed the Spielpassung exercise group with sun wheel shaft (19); Ring gear (7) is fixedly connected on land (2) side, left side planet carrier (4) be arranged in the middle of the ring gear (7) and and land (2) between be Spielpassung, planetary pinion (6) is fixedly installed on the planet pin (5), form the Spielpassung exercise group between them, planet pin (5) two ends are installed on respectively on left planet carrier (4) and the right planet carrier (8), form the planet carrier mechanism in the planetary gear speed reducing mechanism;
Twin-direction clutch is made of left clutch shell (12), left wet friction sheet (13), left steel disc (14), left platen (15), right clutch shell (18), wet friction sheet (20), steel disc (21), right platen (22), interior external splines connecting sleeve (24), elastic element (25); Interior external splines connecting sleeve (24) adopts spline package on sun wheel shaft (19); Some left wet friction sheets (13) and left steel disc (14) are crisscross arranged and constitute left clutch between left clutch shell (12) and left platens (15), and left clutch shell (12) is fixed on the driving gear (9); , some wet friction sheets (20) and steel disc (21) are crisscross arranged and constitute right clutch between right platen (22) and right clutch shells (18), and right clutch shell (18) is fixed on the casing; The external tooth of wet friction sheet (13), (20) is inserted in respectively in the groove of left and right clutch housing (12), (18), and steel disc (14), (21) are splined with interior external splines connecting sleeve (24).Be provided with elastic element (25) between left side platen (15) and the right platen (22);
Left and right operating cyloinder is made of left cylinder body (10), left piston (11), right cylinder body (16), right piston (17), is ring-like oil cylinder; Left side cylinder body (10) and right cylinder body (16) are arranged at the left clutch shell (12) and right clutch shell (18) outside respectively and are installed on the casing, and left piston (11) and right piston (17) withstand on the left platen (15) and right platen (22) outside respectively.
Also be equipped with spacing with jump ring 23 in the neutral position of interior external splines connecting sleeve 24 outer cylinder surfaces.
Described power input shaft 1 can be motor output shaft or other power input shaft, and described elastic element 25 is a stage clip.
According to the planetary reduction gear motion theory as can be known, when ring gear is a driving link, during planet carrier output, planet carrier, can realize four kinds of functions respectively when sun gear is in different conditions: (one) sun gear is fixedly the time, ring gear drives the planetary pinion commentaries on classics and drives planet carrier, planet carrier is retarded motion, and its reduction speed ratio is the ring gear number of teeth and the ratio of the sun gear number of teeth; (2) sun gear is movable, and when planet carrier followed sun gear locked simultaneously, ring gear drove planet wheel and sun gear one runs up (unitary rotation), and not slowing down this moment is motion in 1: 1; (3) sun gear is fixed, and when planet carrier followed sun gear locked simultaneously, planetary gear speed reducing mechanism can not rotate (braking state); (4) sun gear is movable, and when planet carrier followed sun gear not locked simultaneously, internal gear drove the planetary pinion commentaries on classics and also drives the sun gear commentaries on classics, and planet carrier does not have relative movement (idling conditions).
Working principle of the present utility model is:
When 1, external hydraulic operating system made left oil duct A lead to the obstructed oil of high pressure oil, right oil duct B, left cylinder action backs down left platen 15 separated left clutch, and right clutch is located jointing state under the effect of elastic element 25.This moment, power input shaft 1 was fixed on the driving gear 9 on the planet carrier when rotating, do retarded motion under the drive of land 2, ring gear 7, planetary pinion 6 for sun gear is fixed, planet carrier is movable.
When 2, external hydraulic operating system made right oil duct B lead to the obstructed oil of high pressure oil, left oil duct A, right cylinder action backed down right platen 22 and makes that right clutch separates, the left clutch combination.This moment, sun gear and planet carrier were locked, and power input shaft 1 is fixed on the driving gear 9 on the planet carrier when rotating, make unitary rotation together with sun wheel shaft 19 under the drive of land 2, ring gear 7, planetary pinion 6, and driving gear 9 transfers motion in 1: 1 to by deceleration.
When 3, external hydraulic operating system made left oil duct A, B lead to high pressure oil simultaneously, left clutch and right clutch all were in separated state.This moment, sun gear and planet carrier all were movable, and when power input shaft 1 rotated, sun wheel shaft 19 was rotated under the drive of land 2, ring gear 7, planetary pinion 6, and the driving gear 9 that is fixed on the planet carrier is motionless, is " neutral gear " state.
When 4, external hydraulic operating system made the simultaneously obstructed oil of left oil duct A, B, left clutch and right clutch all entered jointing state under the effect respectively of stage clip 25 and left and right sides platen.Sun wheel shaft 19 is braked, and planet carrier and sun gear are by locked, and driving gear 9 can not rotate, and enters " stopping brake " state.
Above embodiment is more preferably embodiment a kind of of the utility model, and the common variation that those skilled in the art carry out in the technical program scope and replacing should be included in the protection domain of the present utility model.
Claims (2)
1. the used for electric vehicle automatic transmission case is characterized in that, land (2), driving gear (9) and planetary gear speed reducing mechanism, twin-direction clutch, left and right sides operating cyloinder are installed in casing; Land (2) adopts spline to connect with power input shaft (1); Wherein:
Planetary gear speed reducing mechanism, constitute by left planet carrier (4), planet pin (5), planetary pinion (6), ring gear (7), right planet carrier (8) and sun wheel shaft (19), driving gear (9) fixedly mounts on the right planet carrier (8), and on sun wheel shaft (19), driving gear (9), right planet carrier assembly parts are formed the Spielpassung exercise group with sun wheel shaft (19); Ring gear (7) is fixedly connected on land (2) side, left side planet carrier (4) be arranged in the middle of the ring gear (7) and and land (2) between be Spielpassung, planetary pinion (6) is fixedly installed on the planet pin (5), form the Spielpassung exercise group between them, planet pin (5) two ends are installed on respectively on left planet carrier (4) and the right planet carrier (8), form the planet carrier mechanism in the planetary gear speed reducing mechanism;
Twin-direction clutch is made of left clutch shell (12), left wet friction sheet (13), left steel disc (14), left platen (15), right clutch shell (18), wet friction sheet (20), steel disc (21), right platen (22), interior external splines connecting sleeve (24), elastic element (25); Interior external splines connecting sleeve (24) adopts spline package on sun wheel shaft (19); Some left wet friction sheets (13) and left steel disc (14) are crisscross arranged and constitute left clutch between left clutch shell (12) and left platens (15), and left clutch shell (12) is fixed on the driving gear (9); , some wet friction sheets (20) and steel disc (21) are crisscross arranged and constitute right clutch between right platen (22) and right clutch shells (18), and right clutch shell (18) is fixed on the casing; The external tooth of wet friction sheet (13), (20) is inserted in respectively in the groove of left and right clutch housing (12), (18), and steel disc (14), (21) are splined with interior external splines connecting sleeve (24).Be provided with elastic element (25) between left side platen (15) and the right platen (22);
Left and right operating cyloinder is made of left cylinder body (10), left piston (11), right cylinder body (16), right piston (17), is ring-like oil cylinder; Left side cylinder body (10) and right cylinder body (16) are arranged at the left clutch shell (12) and right clutch shell (18) outside respectively and are installed on the casing, and left piston (11) and right piston (17) withstand on the left platen (15) and right platen (22) outside respectively.
2. used for electric vehicle automatic transmission case as claimed in claim 1 is characterized in that, also is equipped with spacing with jump ring (23) in the neutral position of interior external splines connecting sleeve (24) outer cylinder surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120061867XU CN201934596U (en) | 2011-03-11 | 2011-03-11 | Automatic gearbox for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120061867XU CN201934596U (en) | 2011-03-11 | 2011-03-11 | Automatic gearbox for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934596U true CN201934596U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120061867XU Expired - Lifetime CN201934596U (en) | 2011-03-11 | 2011-03-11 | Automatic gearbox for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934596U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182799A (en) * | 2011-03-11 | 2011-09-14 | 李金东 | Automatic gearbox of electric automobile |
| CN106763735A (en) * | 2017-01-09 | 2017-05-31 | 山东理工大学 | Electric car automatic speed transmission with brushless line traffic control centrifugal globe arm engagement device |
| CN109695670A (en) * | 2019-02-28 | 2019-04-30 | 福建中青汽车技术有限公司 | A kind of gearbox |
-
2011
- 2011-03-11 CN CN201120061867XU patent/CN201934596U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182799A (en) * | 2011-03-11 | 2011-09-14 | 李金东 | Automatic gearbox of electric automobile |
| CN102182799B (en) * | 2011-03-11 | 2014-02-19 | 李金东 | Automatic gearbox of electric automobile |
| CN106763735A (en) * | 2017-01-09 | 2017-05-31 | 山东理工大学 | Electric car automatic speed transmission with brushless line traffic control centrifugal globe arm engagement device |
| CN106763735B (en) * | 2017-01-09 | 2022-06-28 | 山东理工大学 | Electric vehicle automatic transmission with brushless wire-controlled centrifugal ball arm engagement device |
| CN109695670A (en) * | 2019-02-28 | 2019-04-30 | 福建中青汽车技术有限公司 | A kind of gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Unite Motor Co.,Ltd. Assignor: Li Jindong Contract record no.: 2012990000566 Denomination of utility model: Automatic gearbox of electric automobile Granted publication date: 20110817 License type: Exclusive License Record date: 20120806 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Unite Motor Co.,Ltd. Assignor: Li Jindong Contract record no.: 2012990000566 Denomination of utility model: Automatic gearbox of electric automobile Granted publication date: 20110817 License type: Exclusive License Record date: 20120806 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160527 Address after: 321300, No. 287, Lingshi Road, Chengxi West District, Zhejiang, Yongkang Patentee after: Zhejiang Unite Motor Co.,Ltd. Address before: West Street Phoenix Road Yongkang city Zhejiang province 321300 No. 10 Building 3 unit 1 Room 302 Patentee before: Li Jindong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |