CN204547774U - The mid-back axle combination of electrical motor - Google Patents
The mid-back axle combination of electrical motor Download PDFInfo
- Publication number
- CN204547774U CN204547774U CN201520196299.2U CN201520196299U CN204547774U CN 204547774 U CN204547774 U CN 204547774U CN 201520196299 U CN201520196299 U CN 201520196299U CN 204547774 U CN204547774 U CN 204547774U
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- axle
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 27
- 210000003464 cuspid Anatomy 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model belongs to the mid-back axle combination of electrical motor.Its electrical motor docks with differential gearbox body and is fixed as one; In gear wheel shaft stage casing, synchro is housed, its both wings respectively removable mounting high-grade driving tooth and low-grade driving tooth; High-grade driving tooth and low-grade driving tooth engage the low-grade driven tooth of diff both sides and high-grade driven tooth respectively; One end of gear wheel shaft is shaped with axle male splines, and automatic bidirectional clutch driven disc plug-in mounting is on it; Automatic bidirectional clutch driving case and driven canine tooth are made as one.The utility model is assemblied on battery-driven car, electrical motor is placed in the center line of back axle completely, eliminate the lateral pressure to vehicle associated components, and set up transmission system, adapted bidirectional multifunctional self-acting clutch, complete vehicle to advance and the transmission of reversing Bidirectional power, and the power after speed change differential can be divided into two and reach two-semiaxle and wheel, effectively overcome the technical defect of existing back axle.
Description
Technical field
The utility model belongs to the driving system of vehicle, specifically belongs to the mid-electrical motor back axle combination of one of battery-driven car.
Background technology
At present, common rear drive axle of electric motor, its electrical motor mounting means is all almost adopt side mode.This electrical motor side mounting means directly brings three large defects to vehicle, and one is that the side of electrical motor on back axle brings huge lateral pressure to vehicle, and this lateral pressure seriously reduces the service life of vehicle hanging and shock mitigation system.Two is overall width that this electrical motor side mode increases back axle, and overall appearance is poor, wireless sexuality.Three is that scientific and technological content is low, and above-mentioned back axle can only complete traditional differential and deceleration, there is no other function.
Utility model content
For overcoming the above-mentioned defect that existing electrical motor mounting means exists, the utility model provides the design plan of the mid-back axle combination of a kind of electrical motor.
Structure design of the present utility model is such:
The mid-back axle combination of electrical motor, electrical motor docks with differential gearbox body and is fixed as one, and the clutch end of motor rotor shaft is shaped with axle external key, and the driving tooth in differential gearbox body is inserted on motor reel external key; In the half axle gear of the electrical motor semiaxis diff be inserted in speed change differential casing relative to change-speed box semiaxis; Synchro is equipped with in the gear wheel shaft stage casing arranged side by side with diff, and its both wings respectively removable mounting high-grade driving tooth and low-grade driving tooth; High-grade driving tooth and low-grade driving tooth engage the low-grade driven tooth of diff both sides and high-grade driven tooth respectively; The driving tooth be inserted on motor hollow shaft external key is meshed with the driven canine tooth be on gear wheel shaft, and the other end of gear wheel shaft is shaped with axle male splines, and automatic bidirectional clutch driven disc plug-in mounting is on it; Automatic bidirectional clutch driving case and driven canine tooth are made as one.
Take up with needle bearing between electrical motor semiaxis and motor rotor shaft inwall; Motor rotor shaft rotor shaft outer bearing and rotor shaft neck bearing take up; In differential gearbox body, the inside and outside two ends of gear wheel shaft take up with gear wheel shaft neck bearing and gear wheel shaft outer bearing respectively; Change-speed box semiaxis axle bearing takes up.
The lubricating oil in change-speed box axle-shaft oil seal and motor reel oil sealing sealing speed change differential casing is used respectively outside rotor shaft neck bearing and axle bearing.
Cavity is made in the dish inside of self-acting clutch driving disc spacing pressing, and cavity periphery is shaped with roller room; Outside automatic bidirectional clutch driven disc, spiral-lock has the flexible dish be connected with electromagnetic switch, and the periphery of flexible dish takes up symmetrical outer magnetic patch.
Roller is had between automatic bidirectional clutch driving case and clutch plate.
Self-acting clutch driving disc spacing pressing is also equipped with magnetic block combination, and magnetic block combination is made up of interior magnetic patch, spring.
Motor rotor shaft is a hollow shaft.
The utility model changes the defect of above-mentioned existing product, by electrical motor and Gearbox design on an axis, and be scientifically fitted to one, its concrete feature: 1, the middle axle tube at two ends is welded on the butt plate of electrical motor and transmission housing both wings respectively, electrical motor is made to be placed in the center line of back axle completely, make the gravity of back axle obtain rational distribution, eliminate the lateral pressure of existing product to vehicle associated components, achieve the associative perception of back axle in appearance.2, set up transmission system, it forms primarily of gear box casing, each tooth axle, synchro and gearshift.Speed changing function promotes the speed per hour of vehicle, the reinforcement of climbable gradient ability, and the prolongation in electrical motor service life and the increase of full charge endurance of electromobile are all leaps of a matter.3, a bidirectional multifunctional self-acting clutch of adapted, its function one is that it is separated when can ensure vehicle speed variation and automatically in conjunction with power, for change-speed box normal gear change satisfies condition; Two is two-way functions of this power-transfer clutch, and no matter electrical motor rotates forward or reversion all can outputting power; Three be when electrical motor not outputting power time, this power-transfer clutch can make vehicle automatically realize sliding and energy-conservation.At any time the power of electrical motor and driving system can be combined by the intention of navigating mate as necessary, to ensure so-called motor-driven brake action.
Power after speed change differential, except These characteristics, can be divided into two and reach two-semiaxle and wheel by the utility model.Wherein the power on one side directly reaches wheel through semiaxis, and the semiaxis of opposite side is then passed through by rotor axis of electric center, therefore motor rotor shaft must be made as hollow shaft.
The utility model not only effectively overcomes the technical defect of existing back axle, and adds scientific and technological content and various functions, will become the substitute in rear axle of electric automobile future.
Accompanying drawing explanation
Fig. 1 is monnolithic case schematic diagram figure of the present utility model,
Fig. 2 is the cutaway view of electrical motor of the present utility model and speed change differential device,
Fig. 3 is that automatic bidirectional power-transfer clutch principal and subordinate of the present utility model coils part enlarged drawing,
Fig. 4 is the decomposing schematic representation of flexible dish and driven canine tooth.
In figure, 1 is electrical motor, 2 is screw, 3 is speed change differential casing, 4 is gear wheel shaft neck bearing, 5 is synchro, 6 is gear wheel shaft outer bearing, 7 is low-grade driving tooth, 8 is platen screw, 9 is change-speed box semiaxis platen, 10 is change-speed box semiaxis, 11 is rotor shaft outer bearing, 12 is change-speed box axle-shaft oil seal, 13 is half axle gear, 14 is electrical motor semiaxis, 15 is motor reel external key, 16 is driving tooth, 17 is rotor shaft neck bearing, 18 is needle bearing, 19 is driven canine tooth, 20 is motor reel platen, 21 is motor rotor shaft, 22 is axle bearing, 23 is diff, 24 is gear wheel shaft, 25 is low-grade driven tooth, 26 is high-grade driving tooth, 27 is high-grade driven tooth, 28 is axle tube, 29 is motor reel oil sealing, 30 is wheel, 31 is axle male splines, 32 is flexible dish, 33 is automatic bidirectional clutch driving case, 34 is automatic bidirectional clutch driven disc, 35 is roller, 36 is magnetic block combination, 37 is electromagnetic switch, 38 is interior magnetic patch, 39 is outer magnetic patch, 40 is spring, 41 is roller room.
Detailed description of the invention
As shown in Figure 1, electrical motor and differential change speed gear box are reasonably docking together by the utility model, really reach perfect unity from integral structure to each main part layout.Electrical motor counts hollow shaft, each tooth axle in differential change speed gear box in order to ensure the crossing ability of semiaxis is ad hoc, and speed-changing mechanism, diff and automatic bidirectional power-transfer clutch meet all engineering factor of differential speed change.As shown in Fig. 2 Fig. 3, electrical motor 1 to be docked with differential gearbox body 3 by screw 2 and is fixed as one, and the clutch end of motor rotor shaft 21 is shaped with axle external key 15, and the driving tooth 16 in differential gearbox body 3 is inserted on motor reel external key 15.Motor rotor shaft 21 is a hollow shaft, takes up between electrical motor semiaxis 14 therebetween and motor rotor shaft 21 inwall with needle bearing 18.In the half axle gear 13 of electrical motor semiaxis 14 diff 23 be inserted in speed change differential casing 3 relative to change-speed box semiaxis 10.In differential gearbox body 3, the inside and outside two ends of the gear wheel shaft 24 arranged side by side with diff 23 take up with gear wheel shaft neck bearing 4 and gear wheel shaft outer bearing 6 respectively.Change-speed box semiaxis 10 axle bearing 22 takes up, and motor rotor shaft 21 rotor shaft outer bearing 11 and rotor shaft neck bearing 17 take up.Change-speed box semiaxis platen 9 is pressed on differential gearbox body 3, and is fixedly mounted with platen screw 8.Motor reel platen 20 is pressed on the shell of electrical motor 1, the outer end welding axle tube 28 of motor reel platen 20.Seal the lubricating oil in speed change differential casing 3 respectively with change-speed box axle-shaft oil seal 12 and motor reel oil sealing 29 outside rotor shaft neck bearing 17 and axle bearing 22.Synchro 5 is equipped with in gear wheel shaft 24 stage casing arranged side by side with diff 23, and its both wings respectively removable mounting high-grade driving tooth 26 and low-grade driving tooth 7, and high-grade driving tooth 26 and low-grade driving tooth 7 engage low-grade driven tooth 25 and the high-grade driven tooth 27 of diff 23 both sides respectively.The driving tooth 16 be inserted on motor hollow shaft external key 15 is meshed with the driven canine tooth 19 be on gear wheel shaft 24, and the other end of gear wheel shaft 24 is shaped with axle male splines 31, and automatic bidirectional clutch driven disc 34 plug-in mounting is on it.Automatic bidirectional clutch driving case 33 and driven canine tooth 19 are made as one, and cavity is made in the dish inside of self-acting clutch driving disc spacing pressing 33, and cavity periphery is shaped with roller room 41.Outside automatic bidirectional clutch driven disc 34, spiral-lock has the flexible dish 32 be connected with electromagnetic switch 37, and the periphery of flexible dish 32 takes up symmetrical outer magnetic patch 39.Roller 35 is had between automatic bidirectional clutch driving case 33 and clutch plate 34.Self-acting clutch driving disc spacing pressing 33 is also equipped with magnetic block combination 36.Magnetic block combination 36 is made up of (as shown in Figure 3, Figure 4) parts such as interior magnetic patch 38, springs 40.
When electrical motor 1 starts working rotation, the driving tooth 16 be inserted on motor reel external key 15 drives large driven tooth 19 to operate.Meanwhile, electric signal commander electromagnetic switch 37 promotes flexible dish 32 to left movement (as shown in Figure 3), when moving to outer magnetic patch 39 and overlapping with interior magnetic patch 38, two pieces of magnetic patch that the same sex arranges dress relatively just produce a kind of repulsion, this repulsion just promotes magnetic block combination 36, interior magnetic patch 38 and additional compressive spring 40, is oppressed on the automatic bidirectional clutch driven disc 34 remained static by the roller 35 be adsorbed on interior magnetic patch 38.Roller 35 is displaced downwardly to the narrow location of roller room 41 in the drive of self-acting clutch driving disc spacing pressing 33, and driven for active two dish contracts are tightly become bonding state.Therefore power successively by automatic bidirectional clutch band movable gear shaft 24, shelves tooth used, diff 23, half axle gear 13, finally by change-speed box semiaxis 10 and electrical motor semiaxis 14, power is reached wheel 30 and drives vehicle to advance.
When electrical motor 1 stops power carrying, recoil the rotating speed of automatic bidirectional clutch driven disc 34 back from wheel 30 can higher than the rotating speed of self-acting clutch driving disc spacing pressing 33, therefore roller 35 is brought to the broad position of roller room 41 by automatic bidirectional clutch driven disc 34 and is adsorbed by magnetic patch 38, automatic bidirectional power-transfer clutch initiatively driven two dishes is separated because losing agreeing with of roller, electrical motor 1 is cut off with the power of driving system, so time vehicle be in sky sliding state.
When the interlock brake as motor-driven in needs of vehicle descending or back electric quantity time receiving, electromagnetic switch 37 is received corresponding signal and is again promoted flexible dish 32 and move to left, make magnetic block combination 36, roller etc. repeat above-mentioned automatic bidirectional power-transfer clutch in conjunction with time action, make electrical motor 1 and running part combine with the effect playing motor-driven interlock, guarantee car safety.
When moveing backward, only electrical motor 1 need be rotated backward, the parts actions such as other power-transfer clutch and electromagnetic switch 37 are advanced identical with vehicle.
Claims (7)
1. the mid-back axle combination of electrical motor, it is characterized in that: electrical motor (1) docks with differential gearbox body (3) and is fixed as one, the clutch end of motor rotor shaft (21) is shaped with axle external key (15), and the driving tooth (16) in differential gearbox body (3) is inserted on motor reel external key (15); In the half axle gear (13) of electrical motor semiaxis (14) diff (23) be inserted in speed change differential casing (3) relative to change-speed box semiaxis (10); Synchro (5) is equipped with in gear wheel shaft (24) stage casing arranged side by side with diff (23), and its both wings respectively removable mounting high-grade driving tooth (26) and low-grade driving tooth (7); High-grade driving tooth (26) and low-grade driving tooth (7) engage low-grade driven tooth (25) and the high-grade driven tooth (27) of diff (23) both sides respectively; The driving tooth (16) be inserted on motor hollow shaft external key (15) is meshed with the driven canine tooth (19) be on gear wheel shaft (24), the other end of gear wheel shaft (24) is shaped with axle male splines (31), and automatic bidirectional clutch driven disc (34) plug-in mounting is on it; Automatic bidirectional clutch driving case (33) and driven canine tooth (19) are made as one.
2. the mid-back axle combination of electrical motor according to claim 1, is characterized in that: take up with needle bearing (18) between electrical motor semiaxis (14) and motor rotor shaft (21) inwall; Motor rotor shaft (21) rotor shaft outer bearing (11) and rotor shaft neck bearing (17) take up; In differential gearbox body (3), the inside and outside two ends of gear wheel shaft (24) use gear wheel shaft neck bearing (4) and gear wheel shaft outer bearing (6) to take up respectively; Change-speed box semiaxis (10) axle bearing (22) takes up.
3. the mid-back axle combination of electrical motor according to claim 2, is characterized in that: use the lubricating oil in change-speed box axle-shaft oil seal (12) and motor reel oil sealing (29) sealing speed change differential casing (3) respectively at rotor shaft neck bearing (17) and axle bearing (22) outside.
4. the mid-back axle combination of electrical motor according to claim 1, it is characterized in that: cavity is made in the dish inside of self-acting clutch driving disc spacing pressing (33), cavity periphery is shaped with roller room (41); In automatic bidirectional clutch driven disc (34) outside, spiral-lock has the flexible dish (32) be connected with electromagnetic switch (37), and the periphery of flexible dish (32) takes up symmetrical outer magnetic patch (39).
5. the mid-back axle combination of the electrical motor according to claim 1 or 4, is characterized in that: between automatic bidirectional clutch driving case (33) and clutch plate (34), have roller (35).
6. the mid-back axle combination of the electrical motor according to claim 1 or 4, it is characterized in that: self-acting clutch driving disc spacing pressing (33) is also equipped with magnetic block combination (36), magnetic block combination (36) is made up of interior magnetic patch (38), spring (40).
7. the mid-back axle combination of electrical motor according to claim 1 and 2, is characterized in that: motor rotor shaft (21) is a hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196299.2U CN204547774U (en) | 2015-04-03 | 2015-04-03 | The mid-back axle combination of electrical motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196299.2U CN204547774U (en) | 2015-04-03 | 2015-04-03 | The mid-back axle combination of electrical motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204547774U true CN204547774U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520196299.2U Expired - Fee Related CN204547774U (en) | 2015-04-03 | 2015-04-03 | The mid-back axle combination of electrical motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204547774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019042384A1 (en) * | 2017-08-31 | 2019-03-07 | Dongfeng Dana Axle Co., Ltd. | Two-speed automatic mechanical transmission electric axle assembly |
| WO2019042387A1 (en) * | 2017-08-31 | 2019-03-07 | Dongfeng Dana Axle Co., Ltd. | Electric axle assembly |
-
2015
- 2015-04-03 CN CN201520196299.2U patent/CN204547774U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019042384A1 (en) * | 2017-08-31 | 2019-03-07 | Dongfeng Dana Axle Co., Ltd. | Two-speed automatic mechanical transmission electric axle assembly |
| WO2019042387A1 (en) * | 2017-08-31 | 2019-03-07 | Dongfeng Dana Axle Co., Ltd. | Electric axle assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |