CN201877944U - Gear shift differential motor assembly of electric cars - Google Patents
Gear shift differential motor assembly of electric cars Download PDFInfo
- Publication number
- CN201877944U CN201877944U CN2010206486468U CN201020648646U CN201877944U CN 201877944 U CN201877944 U CN 201877944U CN 2010206486468 U CN2010206486468 U CN 2010206486468U CN 201020648646 U CN201020648646 U CN 201020648646U CN 201877944 U CN201877944 U CN 201877944U
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- China
- Prior art keywords
- gear
- differential
- axle
- differential mechanism
- driven gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
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- Motor Power Transmission Devices (AREA)
Abstract
The utility model discloses a gear shift differential motor assembly of electric cars. The assembly comprises a motor part, a gear box body, a variable speed transmission part, a differential and a rear axle part, and the variable speed transmission part is installed in the gear box body. The assembly is characterized in that the variable speed transmission part comprises a primary gear shaft and a secondary gear shaft; the primary gear shaft is provided with a first-stage gear and a second-stage gear; the secondary gear shaft is provided with a high-gear driven gear and a low-gear driven gear, as well as a fork stirring slip connector for gear shift at a high or low speed; the first-stage gear on the primary gear shaft is meshed with the high-gear driven gear; the second-stage gear is meshed with the low-gear driven gear; the secondary gear shaft is connected with the rear axle part through the differential; and the primary gear shaft is connected with the motor part. The assembly avoids teeth break during gear shift when a car is driven. The service life is prolonged, and the work is reliable. When the car bears excessive weight, the gear box body can not crack, and does not have the phenomenon of oil leakage.
Description
Technical field
The utility model relates to the vehicle technology field, is a kind of electric motor car shift differential speed motor assembly specifically.
Background technology
Electric three-wheel and four-wheel transmission of power are to pass to sprocket wheel by motor to realize what car travelled by the sprocket wheel that chain passes on the car rear axle shaft more at present.Electric vehicle motor and back axle are the main cores of electric motor car, are important transmission devices, generally are that the flange of the split back axle by both sides is connected with the reduction box flange, and gearbox body is the branch body structure.The shortcoming of this structure is: car has very big a part of gravity can be applied on the gearbox body after bearing a heavy burden, and it is split type adding gearbox body, the gearbox body phenomenon of rupture occurs through regular meeting.The shift mode of shift gear box is stirred the slippage duplicate gear with shift fork and is realized speed change in the market in addition, carries out shift with this structure in car travels and has the broken teeth phenomenon.
Summary of the invention
The purpose of this utility model provides a kind of electric motor car shift differential speed motor assembly, and car shift does not under steam have the generation of broken teeth phenomenon, increases the service life reliable operation.
Further purpose is to carry when overweight when car, and gearbox body can not rupture, no oil leakage phenomenon.
The purpose of this utility model is achieved through the following technical solutions.
A kind of electric motor car shift differential speed motor assembly, comprise the motor part, gearbox body, the speed change drive disk assembly, differential mechanism and back axle parts, the speed change drive disk assembly is installed in the gearbox body, it is characterized in that: described speed change drive disk assembly comprises the one-level gear shaft, the secondary gear axle, on the one-level gear shaft, be provided with first order gear and second level gear, high-grade driven gear and low-grade driven gear are installed on the secondary gear axle, the shift fork and one that the high and low speed shelves are installed on the secondary gear axle is stirred the slippage connector, first order gear on the one-level gear shaft and the engagement of high-grade driven gear, second level gear and the engagement of low-grade driven gear, wherein the secondary gear axle is connected with the back axle parts by differential mechanism, and the one-level gear shaft partly is connected with motor.
Described gearbox body comprises left box body and right case, connect with bolt between left box body and the right case, differential mechanism comprises 2 differential bearings, 2 gamp teeth, 2 small bevel gears, differential casing and differential mechanism bearing pin, 2 gamp teeth and 2 small bevel gears are installed in the differential casing by the differential mechanism bearing pin, the two ends of differential casing are fixed on the gearbox body by differential bearing, the back axle parts comprise the back axle bag, back bridge tube, 2 semiaxis and 2 back axle connecting plates, one end of 2 semiaxis is connected with differential mechanism respectively, the other end of 2 semiaxis inserts respectively in the corresponding gamp tooth, and back bridge tube is connected with brake system by the back axle connecting plate.
Be respectively equipped with oil sealing between described gearbox body and 2 semiaxis.
Described differential mechanism is equipped with driven gear, the driven gear engagement on secondary gear axle and the differential mechanism.
The utility model compared with prior art has the following advantages:
(1) discharging current that needs very big moment of torsion must increase controller when electric motor car in the market heavy duty or climbing just can be realized, all influential to the life-span of life-span of the battery of electric motor car and motor like this, run counter to the principle of electric motor car energy saving economy, the utility model is owing to adopted the i.e. two grades of speed changes of two stage speed change, car with high-grade, can be realized the purpose of fast running when flat pavement running or load-carrying are light like this; Car climbing or when heavy duty with low-grade, can realize that the big torque of low velocity reaches car purpose energetically, and the power and energy saving, increase the mileages of continuation of car.
(2) the shift mode of shift gear box is stirred the slippage duplicate gear with shift fork and is realized speed change in the market, thereby carries out in car travels that shift has broken teeth phenomenon the utility model owing to effectively avoid the broken teeth phenomenon by what shift fork stirred that the slippage connector realizes shift with this structure.
(3) generally be that split back axle flange by both sides is connected with the reduction box flange in the market, the change-speed gearing casing is the branch body structure.The shortcoming of this structure is: car has very big a part of gravity can be applied on the gearbox body after bearing a heavy burden, and it is split type adding gearbox body, the gearbox body phenomenon of rupture occurs through regular meeting.The utility model back axle adopts integral structure, and when car bears a heavy burden, thereby gravity is born the phenomenon that effectively prevents the gearbox body fracture by the one back axle fully.
(4) integral type back axle in the market has oil leakage phenomenon, is respectively equipped with oil sealing between the utility model gearbox body and 2 semiaxis, promptly adopts the totally enclosed type design, thus the generation of stopping oil leakage phenomenon.
In a word, the utility model 1) can realize the two stage speed change function; Gearbox body all-sealed structure design thoroughly prevents the phenomenon of gearbox leakage of oil in the bridge tube of back.2) thus integral type shift differential speed motor shift structure is effectively to avoid the broken teeth phenomenon by what shift fork stirred that the slippage connector realizes shift.3) gearbox body is split type, and easy to connect, gear, Bearing Installation are easy to maintenance.4) one back axle bearing capacity is strong, attachment security is reliable, and the support force of back axle can not be added on the gearbox body when car bears a heavy burden, thereby the phenomenon of gearbox body fracture is taken place.5) gearbox body and back axle is easy to connect reliable, easy to maintenance.So this defective that the discharging current that has needed very big moment of torsion must increase controller when the utility model 1) having solved heavy duty of electric motor car in the market or climbing just can be realized, life-span to life-span of the battery that prolongs electric motor car and motor is all influential, has increased the mileages of continuation of electric motor car.2) electric motor car joint compact conformation rationally, solved the stressed phenomenon of rupture of gearbox body.3) solve the gearbox gear assembly problem and saved the tank material cost.4) avoided car travel in the phenomenon of shift broken teeth.5) avoided the gearbox body leakage of oil phenomenon in the bridge tube of back.The utility model has improved the power performance of electronic visitor, lorry and continuation of the journey mileage, noise is low, the fast compact conformation of response speed, low cost of manufacture long service life, etc. characteristics, the utility model helps the industrialization of electric motor coach, lorry, has very big advantage in promoting the use of.
Description of drawings
Fig. 1 dissects structural representation for the utility model electric motor car shift differential speed motor assembly.
Embodiment
Below in conjunction with accompanying drawing the utility model electric motor car shift differential speed motor assembly is described in further detail.
As figure, the utility model electric motor car shift differential speed motor assembly, comprise the motor part, gearbox body, the speed change drive disk assembly, differential mechanism and back axle parts, the speed change drive disk assembly is installed in the gearbox body, the speed change drive disk assembly comprises one-level gear shaft 13, secondary gear axle 17, on one-level gear shaft 13, be provided with first order gear and second level gear, high-grade driven gear 15 and low-grade driven gear 20 are installed on the secondary gear axle 17, the shift fork and one that the high and low speed shelves are installed on secondary gear axle 17 is stirred slippage connector 16, first order gear on the one-level gear shaft 13 and 15 engagements of high-grade driven gear, second level gear and 20 engagements of low-grade driven gear, wherein secondary gear axle 17 is connected with the back axle parts by differential mechanism, and one-level gear shaft 13 partly is connected with motor.Wherein gearbox body comprises left box body 11 and right case 12, connect with bolt between left box body 11 and the right case 12, differential mechanism comprises 2 differential bearings 27,2 gamp teeth 29,2 small bevel gears 30, differential casing and differential mechanism bearing pin 31,2 gamp teeth 29 and 2 small bevel gears 30 are installed in the differential casing by differential mechanism bearing pin 31, the two ends of differential casing are fixed on the gearbox body by differential bearing, the back axle parts comprise back axle bag 25, back bridge tube 36,2 semiaxis and 2 back axle connecting plates, one end of 2 semiaxis is connected with differential mechanism respectively, the other end of 2 semiaxis inserts respectively in the corresponding gamp tooth, and back bridge tube 36 is connected with brake system 22 by the back axle connecting plate.And be respectively equipped with oil sealing 10 between gearbox body and 2 semiaxis.Driven gear 33 is installed on the differential mechanism also is big driven gear or is second level driven gear, gear on the secondary gear axle 17 and 33 engagements of the driven gear on the differential mechanism.
Be to more detailed description among Fig. 1 below: motor cover 1, motor cover bearing 2, motor shaft 3, rotor 4, motor stator 5,6,6 M5X70 bolts 7 of motor tube, connecting plate 8, connecting plate bearing 9 more than are the formations of motor part.Oil sealing 10, left box body 11, right case 12, one-level gear shaft 13,2 14 of gearbox body right bearings, high-grade driven gear 15, slippage connector 16, secondary gear axle 17, gearbox body left bearing 18, gearbox body right bearing 19,20,8 M8X35 bolts 21 of low-grade driven gear, 2 26 on oil sealing, 2 27 of differential bearings, differential casing (right side) 28,2 29 in gamp tooth, 2 30 of small bevel gears, 31,6 M5X35 bolts 32 of differential mechanism bearing pin, second level driven gear 33, differential casing (left side) 34 more than are the formations of gearbox body and drive disk assembly.Semiaxis 35, semiaxis 24,2 22 of brake system, 2 23 of back axle connecting plates, back axle bag 25, back bridge tube 36 etc. are the formations of back axle parts.
The operation principle and the course of work: the power that rotation provides behind electrical power passes to one-level gear shaft 13 by motor shaft 3, the gear that two different numbers of teeth are arranged on the one-level gear shaft 13 is the driving gear of high and low shift, power passes to the high and low shift driven gear 15 with the normal engagement of two driving gears respectively, 20 (high and low shift driven gears be with secondary gear axle be interference fits), with the shift operating mechanism realize slippage connector 16 (slippage connector 16 is that the spline slippage is connected with secondary gear axle 17) thus the position realize the high and low speed shelves with high and low shift driven gear engagement respectively, finish the first order slow down (two kinds of speed are arranged).Speed reduces by 2.5 times of moments of torsion under the high-grade state is increased accordingly; Speed reduces by 5 times under the low-grade state, and the moment of torsion that obtains on the secondary gear axle 17 is high-grade 2 times; Second level deceleration is finished in secondary gear axle 17 and 33 engagements of secondary driven gear, and the moment of torsion of secondary output is respectively under the high and low shift state: top grade: Motor torque X (the fast speed reducing ratio of one-level+double reduction ratio), low grade: Motor torque X (the slow speed reducing ratio of one-level+double reduction ratio); Semiaxis 35 and semiaxis 24 insert respectively that (car was when straight-line travelling when gamp tooth 29 inherent cars travelled, do not rotate between differential gamp tooth 22 and the differential small bevel gear, two differential gamp tooth switched in opposite when car is turned, the size of turning is passed through the differential small bevel gear and is rotated adjusting, and car is turned and just can not turned on one's side flexibly like this) thus the moment of torsion that semiaxis is exported secondary passes to the wheel of car reaches the purpose that car travels.
Claims (4)
1. electric motor car shift differential speed motor assembly, comprise the motor part, gearbox body, the speed change drive disk assembly, differential mechanism and back axle parts, the speed change drive disk assembly is installed in the gearbox body, it is characterized in that: described speed change drive disk assembly comprises the one-level gear shaft, the secondary gear axle, on the one-level gear shaft, be provided with first order gear and second level gear, high-grade driven gear and low-grade driven gear are installed on the secondary gear axle, the shift fork and one that the high and low speed shelves are installed on the secondary gear axle is stirred the slippage connector, first order gear on the one-level gear shaft and the engagement of high-grade driven gear, second level gear and the engagement of low-grade driven gear, wherein the secondary gear axle is connected with the back axle parts by differential mechanism, and the one-level gear shaft partly is connected with motor.
2. electric motor car shift differential speed motor assembly according to claim 1, it is characterized in that: described gearbox body comprises left box body and right case, connect with bolt between left box body and the right case, differential mechanism comprises 2 differential bearings, 2 gamp teeth, 2 small bevel gears, differential casing and differential mechanism bearing pin, 2 gamp teeth and 2 small bevel gears are installed in the differential casing by the differential mechanism bearing pin, the two ends of differential casing are fixed on the gearbox body by differential bearing, the back axle parts comprise the back axle bag, back bridge tube, 2 semiaxis and 2 back axle connecting plates, one end of 2 semiaxis is connected with differential mechanism respectively, the other end of 2 semiaxis inserts respectively in the corresponding gamp tooth, and back bridge tube is connected with brake system by the back axle connecting plate.
3. electric motor car shift differential speed motor assembly according to claim 2 is characterized in that: be respectively equipped with oil sealing between described gearbox body and 2 semiaxis.
4. electric motor car shift differential speed motor assembly according to claim 1, it is characterized in that: described differential mechanism is equipped with driven gear, the driven gear engagement on secondary gear axle and the differential mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206486468U CN201877944U (en) | 2010-12-07 | 2010-12-07 | Gear shift differential motor assembly of electric cars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206486468U CN201877944U (en) | 2010-12-07 | 2010-12-07 | Gear shift differential motor assembly of electric cars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877944U true CN201877944U (en) | 2011-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206486468U Expired - Fee Related CN201877944U (en) | 2010-12-07 | 2010-12-07 | Gear shift differential motor assembly of electric cars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774279A (en) * | 2012-07-25 | 2012-11-14 | 襄阳宇清传动科技有限公司 | Non-redundancy pivot point type motor and speed changer integrated drive system |
| US20220082166A1 (en) * | 2018-12-05 | 2022-03-17 | Daimler Ag | Electric axle drive for a commercial vehicle |
-
2010
- 2010-12-07 CN CN2010206486468U patent/CN201877944U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774279A (en) * | 2012-07-25 | 2012-11-14 | 襄阳宇清传动科技有限公司 | Non-redundancy pivot point type motor and speed changer integrated drive system |
| CN102774279B (en) * | 2012-07-25 | 2015-10-28 | 襄阳宇清传动科技有限公司 | Irredundant fulcrum type motor and speed changer integrated drive system |
| US20220082166A1 (en) * | 2018-12-05 | 2022-03-17 | Daimler Ag | Electric axle drive for a commercial vehicle |
| US11525505B2 (en) * | 2018-12-05 | 2022-12-13 | Daimler Truck AG | Electric axle drive for a commercial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Xiang Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Xiang Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20171207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |