CN203078226U - Rear axle assembly of electric car - Google Patents
Rear axle assembly of electric car Download PDFInfo
- Publication number
- CN203078226U CN203078226U CN 201320071999 CN201320071999U CN203078226U CN 203078226 U CN203078226 U CN 203078226U CN 201320071999 CN201320071999 CN 201320071999 CN 201320071999 U CN201320071999 U CN 201320071999U CN 203078226 U CN203078226 U CN 203078226U
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- rear axle
- bearing seat
- connection block
- connection
- battery
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- 238000007789 sealing Methods 0.000 claims description 13
- 230000009467 reduction Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a rear axle assembly of an electric car. The rear axle assembly comprises a rear axle housing, half axles and a braking device, wherein an electric driving device is mounted on the rear axle housing, bearing pedestals are respectively welded at the left and right ends of the rear axle housing, the bearing pedestals cooperate with a connection base through bearings, a brake base plate of the braking device is fixedly connected with the bearing pedestals through a bolt, a brake hub of the braking device is fixedly connected with the connection base through the bolt, the opposite ends of the left and right half axles extend into the rear axle housing to be connected with a differential spline of the electric driving device, both the reverse ends of the left and right half axle are integrated with a flange plate, and the left and right half axles are respectively and fixedly connected with the corresponding connection base via the flange plate by bolts. In the rear axle assembly of the electric car, a electric motor, a speed reducer, a differential and a rear axle are integrated together, other transmission parts are reduced, elements attrition is reduced, manufacturing cost is lowered, and maintenance is facilitated; and the half axle of the rear axle is formed by being cast together with a connection flange, thus, the half axle is high in strength, and the electric car is safe in travel.
Description
Technical field
The utility model relates to electric automobiles, particularly relates to a kind of back axle assembly of battery-driven car.
Background technology
The back axle of existing battery-driven car and rear-axle drive system are generally following structure:
Electrical motor captive joint change-speed box, the output shaft of change-speed box passes through sprocket wheel more successively, chain, tween drive spindle, the middle transition axle, the driving chain transmission, the power transmission of electrical motor is arrived two semiaxis of back axle, thereby driving battery-driven car, the back axle of this battery-driven car and rear-axle drive system have the following disadvantages: need to increase sprocket wheel, chain, the middle transition transmission shaft, drive disk assemblies such as middle transition sprocket wheel are transmission trailing wheel imput shaft again, the manufacturing cost height, the parts frictional loss is big in the transmission process, driving chain comes off from sprocket wheel easily, the horsepower output loss is big, the maintenance trouble, car load repair rate height.
The left and right half of back axle is made up of two shaft parts respectively, and two shaft parts are circumferentially fixing by coupler, because coupler is easy to damage, make that the rigidity of semiaxis is not enough, easy stressed damage; The butt flange of semiaxis end face connects by spline, again by nut to the butt flange axial restraint, make bonded assembly insufficient strength between butt flange and the semiaxis, long-time use easily makes spline damage, thereby cause that butt flange and semiaxis relatively rotate, and bring potential safety hazard.And left and right half is made up of a plurality of parts, makes the assembling of semiaxis very bother, if the processing of each parts has deviation slightly, then can make semiaxis be difficult to assemble successfully, causes economic loss.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of back axle assembly of battery-driven car is provided, and it becomes one electrical motor, retarder, diff, back axle, reduce other drive disk assemblies, reduce parts depreciation, reduced manufacturing cost, be convenient to maintenance; The semiaxis of back axle and the moulding of butt flange integrally casting, intensity is higher, makes the battery-driven car driving safer.
The purpose of this utility model is achieved in that
A kind of back axle assembly of battery-driven car, comprise rear axle case, semiaxis, brake equipment, it is characterized in that: a Vidacare corp is installed on the rear axle case, Vidacare corp housing and rear axle case are bolted to connection, the left side of rear axle case, right two ends are welded with bearing seat respectively, bearing seat cooperates with Connection Block by bearing, the brake support plate and the bearing seat of brake equipment are bolted to connection, the braking hub and the Connection Block of brake equipment are bolted to connection, a left side, the end in opposite directions of right axle shaft stretches into rear axle case and is connected with the diff spline of Vidacare corp, a left side, the backward end of right axle shaft is all one-body molded flange, a left side, right axle shaft is fixed by flange and pairing Connection Block bolt together respectively.
Be provided with the oil sealing mounting groove in the axis hole of described bearing seat, the gap oil sealing sealing between bearing seat and the semiaxis.
The outer circumference surface of described bearing seat all is stepped appearance, the path section of bearing seat is provided with some bearings that are used for the support and connection seat, be provided with spacer ring between the adjacent bearing, the end of the path section of bearing seat is provided with the nut that is used for the bearing location, is provided with oil sealing between the big footpath section of bearing seat and the Connection Block.
The outer circumference surface of described bearing seat is provided with the butt flange that is used to connect brake support plate.
The two ends of described rear axle case are welded respectively and are provided with bridge tube, and the diameter of two bridge tubes is less than the diameter of rear axle case, and the junction of two bridge tubes and rear axle stand all is welded with reinforced rib.
The two ends of described rear axle case are arranged with the leaf spring Connection Block, and described leaf spring Connection Block lays respectively on the bridge tube at rear axle case two ends.
The periphery of described Connection Block is notch cuttype, and the end face of Connection Block small end and the flange of semiaxis are bolted to connection, and the end face of the big end of Connection Block is bolted to connection with the braking hub.
One side of described motorized motions speed reduction gearing housing is provided with the end face that is connected and fixed the alternating current dynamo stator core, one end of alternating current dynamo stator core connects this end face of Vidacare corp housing, the other end of alternating current dynamo stator core connects rear side housing, and described rear side housing, alternating current dynamo stator core and Vidacare corp housing are fixed by a plurality of bolt-throughs in the lump.
Owing to adopted such scheme, this back axle assembly comprises rear axle case, semiaxis, brake equipment, Vidacare corp is installed on the rear axle case, Vidacare corp housing and rear axle case are bolted to connection, the left and right two ends of rear axle case are welded with bearing seat respectively, bearing seat cooperates with Connection Block by bearing, the brake support plate and the bearing seat of brake equipment are bolted to connection, the braking hub and the Connection Block of brake equipment are bolted to connection, and the end in opposite directions of left and right half stretches into rear axle case and is connected with the diff spline of Vidacare corp.Electrical motor, retarder, diff, back axle are integrated, reduce other drive disk assemblies, as sprocket wheel, chain, middle transition transmission shaft, middle transition sprocket wheel etc.Therefore the transmission distance is near, has reduced parts depreciation, has reduced manufacturing cost, and convenient maintenance, does not need car load to reprocess.The backward end of left and right half is all one-body molded flange, and left and right half is fixed by flange and pairing Connection Block bolt together respectively.The left and right half of back axle is the integrally casting moulding, does not need coupler, and the rigidity of semiaxis is bigger; The butt flange of left and right half end face and the moulding of left and right half integrally casting, intensity is higher, longer service life.Left and right half integral body is formed in one, and makes that semiaxis does not need to assemble, and it is also very easy to be installed on the back axle.Directly left and right half is inserted back axle Ya Baonei, the diff spline connection of Vidacare corp gets final product, and has reduced cost of labor.
Vidacare corp housing one side of described motorized motions speed reduction gearing is provided with the end face that is connected and fixed the alternating current dynamo stator core, one end of alternating current dynamo stator core connects this end face of Vidacare corp housing, the other end of alternating current dynamo stator core connects rear side housing, and described rear side housing, alternating current dynamo stator core and Vidacare corp housing are fixed by a plurality of bolt-throughs in the lump.Therefore, this rear-axle drive speed reduction gearing can cooperate frequency-variable controller control speed regualtion of AC motor, realize stepless time adjustment, eliminate the impact that exists in the shift process, realize bigger output speed, stator core is directly exposed to rely on air flows to dispel the heat, and independent radiator fan need be set, and has not only guaranteed the heat radiation of drive motor but also dwindled volume.
The utility model becomes one electrical motor, retarder, diff, back axle by said structure, reduces other drive disk assemblies, has reduced parts depreciation, has reduced manufacturing cost, is convenient to maintenance; The semiaxis of back axle and the moulding of butt flange integrally casting, intensity is higher, makes the battery-driven car driving safer.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the birds-eye view of Fig. 1.
In the accompanying drawing, 1 is rear axle case, and 2 is semiaxis, and 2a is a flange, 3 is brake equipment, and 3a is a brake support plate, and 3b is the braking hub, and 4 is Vidacare corp, 4a is the Vidacare corp housing, and 4b is the end face that is connected and fixed the alternating current dynamo stator core, and 4c is the alternating current dynamo stator core, and 4d is a rear side housing, 5 is bearing seat, and 6 is bearing, and 7 is Connection Block, and 8 is oil sealing, 9 is spacer ring, and 10 is nut, and 11 is butt flange, 12 is bridge tube, and 13 is reinforced rib, and 14 is the leaf spring Connection Block.
The specific embodiment
Referring to Fig. 1～Fig. 3, a kind of embodiment for the back axle assembly of battery-driven car, this back axle assembly comprises rear axle case 1, semiaxis 2, brake equipment 3, one Vidacare corp 4 is installed on the rear axle case 1, Vidacare corp housing 4a and rear axle case 1 are bolted to connection, the differential mounting of Vidacare corp is provided with the flange that is used to connect rear axle case, the diff of Vidacare corp stretches into the Ya Baonei of rear axle case, flange on the differential mounting is captiveed joint with rear axle case by a plurality of bolts, thereby Vidacare corp and back axle are become one.
The left and right two ends of rear axle case 1 are welded with bearing seat 5 respectively, bearing seat 5 cooperates with Connection Block 7 by bearing 6, the outer circumference surface of described bearing seat 5 all is stepped appearance, the path section of bearing seat 5 is provided with some bearings 6 that are used for support and connection seat 7, be provided with spacer ring 9 between the adjacent bearing 6, spacer ring can prevent to move between the bearing interference.In the present embodiment, bearing seat is provided with two bearings Connection Blocks.The end of the path section of bearing seat 5 is provided with the nut 10 that is used for bearing 6 location, and nut cooperates with the step of the big footpath of bearing seat section, finishes the axial location to bearing.Be provided with oil sealing 8 between the big footpath section of bearing seat and the Connection Block 7, prevent the lubricant seepage.The thickness of bearing seat has guaranteed the weight capacity of back axle greater than the thickness of rear axle case, and makes things convenient for the manufacturing of back axle assembly.Be provided with oil sealing 8 mounting grooves in the axis hole of described bearing seat 5, the gap between bearing seat 5 and the semiaxis 2 prevents the lubricant seepage with oil sealing 8 sealings.The two ends of described rear axle case 1 are welded respectively and are provided with bridge tube 12, and the diaxon bearing is fixedly welded on respectively on the bridge tube at back axle two ends.The diameter of two bridge tubes 12 is less than the diameter of rear axle case 1, the welded bridge tube side the manufacturing of rear axle case, moulding is more prone to, and the radius of bridge tube is less, lighter weight, the material of both having saved has alleviated the weight of back axle assembly again.Two bridge tubes 12 all are welded with reinforced rib 13 with the junction of rear axle stand, make the intensity of rear axle case and bridge tube higher, avoid stressed damage.
The brake support plate 3a and the bearing seat 5 of brake equipment 3 are bolted to connection, and the outer circumference surface of described bearing seat 5 is provided with the butt flange 11 that is used to connect brake support plate 3a, and brake support plate is fixed by the butt flange of a plurality of bolts and bearing seat.The braking hub 3b and the Connection Block 7 of brake equipment 3 are bolted to connection, and the periphery of described Connection Block 7 is notch cuttype, and the end face of Connection Block 7 big ends is bolted to connection with braking hub 3b.The backward end of left and right half 2 is all one-body molded flange, and left and right half 2 is fixed by flange and pairing Connection Block 7 bolt togethers respectively.The end face of Connection Block 7 small ends and the flange of semiaxis 2 are bolted to connection.
The end in opposite directions of left and right half 2 stretches into rear axle case 1 and is connected with the diff spline of Vidacare corp 4, described motorized motions speed reduction gearing has Vidacare corp housing 4a, Vidacare corp housing 4a one side is provided with the end face 4b that is connected and fixed the alternating current dynamo stator core, the end of alternating current dynamo stator core 4c connects this end face of Vidacare corp housing 4a, the other end of alternating current dynamo stator core 4c connects rear side housing 4d, and described rear side housing 4d, alternating current dynamo stator core 4c and Vidacare corp housing 4a fix by a plurality of bolt-throughs in the lump.It becomes one electrical motor, retarder, diff, back axle, reduces other drive disk assemblies, has reduced parts depreciation, has reduced manufacturing cost, is convenient to maintenance.The two ends of described rear axle case 1 are arranged with leaf spring Connection Block 14, and described leaf spring Connection Block 14 lays respectively on the bridge tube 12 at rear axle case 1 two ends, and the leaf spring Connection Block is captiveed joint with the leaf spring of battery-driven car by bolt, and back axle assembly is by the leaf spring support frame.
The diff of Vidacare corp stretches into the Ya Baonei of rear axle case, flange on the differential mounting and rear axle case bolt, thus Vidacare corp and rear axle case are become one.The end in opposite directions of left and right half stretches into rear axle case and is connected with the diff spline of Vidacare corp.The backward end of left and right half is all one-body molded flange, and left and right half is fixed by flange and pairing Connection Block bolt together respectively, and Connection Block is axially fixed on the bearing seat of rear axle case welding by bearing.Thereby electrical motor, retarder, diff, back axle are integrated, reduce other drive disk assemblies, so the transmission distance is near, has reduced parts depreciation, has reduced manufacturing cost, and convenient maintenance, do not need car load to reprocess.Left and right half integral body is formed in one, and makes that semiaxis does not need to assemble, and it is also very easy to be installed on the back axle.
The utility model not only is confined to the foregoing description, carries out the technical scheme of a little change under the situation that does not deviate from the technical solutions of the utility model spirit, should fall into protection domain of the present utility model.
Claims (8)
1. the back axle assembly of a battery-driven car, comprise rear axle case, semiaxis, brake equipment, it is characterized in that: a Vidacare corp is installed on the rear axle case, Vidacare corp housing and rear axle case are bolted to connection, the left side of rear axle case, right two ends are welded with bearing seat respectively, bearing seat cooperates with Connection Block by bearing, the brake support plate and the bearing seat of brake equipment are bolted to connection, the braking hub and the Connection Block of brake equipment are bolted to connection, a left side, the end in opposite directions of right axle shaft stretches into rear axle case and is connected with the diff spline of Vidacare corp, a left side, the backward end of right axle shaft is all one-body molded flange, a left side, right axle shaft is fixed by flange and pairing Connection Block bolt together respectively.
2. the back axle assembly of battery-driven car according to claim 1 is characterized in that: be provided with the oil sealing mounting groove in the axis hole of described bearing seat, the gap oil sealing sealing between bearing seat and the semiaxis.
3. the back axle assembly of battery-driven car according to claim 1 and 2, it is characterized in that: the outer circumference surface of described bearing seat all is stepped appearance, the path section of bearing seat is provided with some bearings that are used for the support and connection seat, be provided with spacer ring between the adjacent bearing, the end of the path section of bearing seat is provided with the nut that is used for the bearing location, is provided with oil sealing between the big footpath section of bearing seat and the Connection Block.
4. the back axle assembly of battery-driven car according to claim 1 and 2, it is characterized in that: the outer circumference surface of described bearing seat is provided with the butt flange that is used to connect brake support plate.
5. the back axle assembly of battery-driven car according to claim 1, it is characterized in that: the two ends of described rear axle case are welded respectively and are provided with bridge tube, and the diameter of two bridge tubes is less than the diameter of rear axle case, and the junction of two bridge tubes and rear axle stand all is welded with reinforced rib.
6. the back axle assembly of battery-driven car according to claim 1 or 5, it is characterized in that: the two ends of described rear axle case are arranged with the leaf spring Connection Block, and described leaf spring Connection Block lays respectively on the bridge tube at rear axle case two ends.
7. the back axle assembly of battery-driven car according to claim 1, it is characterized in that: the periphery of described Connection Block is notch cuttype, the end face of Connection Block small end and the flange of semiaxis are bolted to connection, and the end face of the big end of Connection Block is bolted to connection with the braking hub.
8. the back axle assembly of battery-driven car according to claim 1, it is characterized in that: a side of described motorized motions speed reduction gearing housing is provided with the end face that is connected and fixed the alternating current dynamo stator core, one end of alternating current dynamo stator core connects this end face of Vidacare corp housing, the other end of alternating current dynamo stator core connects rear side housing, and described rear side housing, alternating current dynamo stator core and Vidacare corp housing are fixed by a plurality of bolt-throughs in the lump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071999 CN203078226U (en) | 2013-02-08 | 2013-02-08 | Rear axle assembly of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071999 CN203078226U (en) | 2013-02-08 | 2013-02-08 | Rear axle assembly of electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203078226U true CN203078226U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071999 Expired - Fee Related CN203078226U (en) | 2013-02-08 | 2013-02-08 | Rear axle assembly of electric car |
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| CN (1) | CN203078226U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448468A (en) * | 2013-09-03 | 2013-12-18 | 苏州巴吉赛车科技有限公司 | Hub component for driving wheel |
| CN103802603A (en) * | 2014-02-17 | 2014-05-21 | 柳州柳工叉车有限公司 | Drive axle semi-shaft |
| CN103832212A (en) * | 2013-11-25 | 2014-06-04 | 广西河池德建农业装备制造有限公司 | Agricultural vehicle chassis and back wheel connecting structure |
| CN104589920A (en) * | 2014-12-23 | 2015-05-06 | 奇瑞商用车（安徽）有限公司 | Automobile rear axle shaft structure |
| CN105416332A (en) * | 2015-12-03 | 2016-03-23 | 南车株洲电力机车有限公司 | Hollow axle bridge structure and light wheel pair |
| CN106274293A (en) * | 2015-06-01 | 2017-01-04 | 泰州市安捷利汽车配件有限公司 | A kind of rear axle of electric automobile of improved structure |
| CN109987071A (en) * | 2019-03-25 | 2019-07-09 | 开沃新能源汽车集团有限公司 | A kind of novel unmanned bus line control brake system |
| WO2019172402A1 (en) * | 2018-03-09 | 2019-09-12 | トヨタ自動車株式会社 | Axle structure |
| CN111791954A (en) * | 2020-06-22 | 2020-10-20 | 东风商用车有限公司 | Pure electric truck chassis adopting through longitudinal beam frame |
| CN114132118A (en) * | 2020-09-03 | 2022-03-04 | 潍坊佩特来电器有限公司 | A low-speed dual-axis electric drive axle |
| CN114987116A (en) * | 2022-05-25 | 2022-09-02 | 银川威力传动技术股份有限公司 | Be applied to semi-axis bearing structure of new forms of energy power assembly unification more |
| EP4603315A3 (en) * | 2015-12-17 | 2025-12-17 | Allison Transmission, Inc. | Axle assembly for a vehicle |
-
2013
- 2013-02-08 CN CN 201320071999 patent/CN203078226U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448468A (en) * | 2013-09-03 | 2013-12-18 | 苏州巴吉赛车科技有限公司 | Hub component for driving wheel |
| CN103832212A (en) * | 2013-11-25 | 2014-06-04 | 广西河池德建农业装备制造有限公司 | Agricultural vehicle chassis and back wheel connecting structure |
| CN103802603A (en) * | 2014-02-17 | 2014-05-21 | 柳州柳工叉车有限公司 | Drive axle semi-shaft |
| CN104589920A (en) * | 2014-12-23 | 2015-05-06 | 奇瑞商用车（安徽）有限公司 | Automobile rear axle shaft structure |
| CN106274293A (en) * | 2015-06-01 | 2017-01-04 | 泰州市安捷利汽车配件有限公司 | A kind of rear axle of electric automobile of improved structure |
| CN105416332B (en) * | 2015-12-03 | 2020-04-28 | 南车株洲电力机车有限公司 | Hollow axle bridge structure and lightweight wheel pair |
| CN105416332A (en) * | 2015-12-03 | 2016-03-23 | 南车株洲电力机车有限公司 | Hollow axle bridge structure and light wheel pair |
| EP4603315A3 (en) * | 2015-12-17 | 2025-12-17 | Allison Transmission, Inc. | Axle assembly for a vehicle |
| WO2019172402A1 (en) * | 2018-03-09 | 2019-09-12 | トヨタ自動車株式会社 | Axle structure |
| CN111801235A (en) * | 2018-03-09 | 2020-10-20 | 丰田自动车株式会社 | Axle structure |
| JPWO2019172402A1 (en) * | 2018-03-09 | 2020-12-10 | トヨタ自動車株式会社 | Axle structure |
| JP7006768B2 (en) | 2018-03-09 | 2022-01-24 | トヨタ自動車株式会社 | Axle structure |
| CN111801235B (en) * | 2018-03-09 | 2023-09-29 | 丰田自动车株式会社 | Axle structure |
| US11840115B2 (en) | 2018-03-09 | 2023-12-12 | Toyota Jidosha Kabushiki Kaisha | Axle structure |
| CN109987071A (en) * | 2019-03-25 | 2019-07-09 | 开沃新能源汽车集团有限公司 | A kind of novel unmanned bus line control brake system |
| CN111791954A (en) * | 2020-06-22 | 2020-10-20 | 东风商用车有限公司 | Pure electric truck chassis adopting through longitudinal beam frame |
| CN114132118A (en) * | 2020-09-03 | 2022-03-04 | 潍坊佩特来电器有限公司 | A low-speed dual-axis electric drive axle |
| CN114987116A (en) * | 2022-05-25 | 2022-09-02 | 银川威力传动技术股份有限公司 | Be applied to semi-axis bearing structure of new forms of energy power assembly unification more |
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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: 20130724 Termination date: 20180208 |