CN111361371A - Integrated wheel limit motor assembly of independent suspension - Google Patents
Integrated wheel limit motor assembly of independent suspension Download PDFInfo
- Publication number
- CN111361371A CN111361371A CN201910638458.2A CN201910638458A CN111361371A CN 111361371 A CN111361371 A CN 111361371A CN 201910638458 A CN201910638458 A CN 201910638458A CN 111361371 A CN111361371 A CN 111361371A
- Authority
- CN
- China
- Prior art keywords
- cross arm
- hub
- motor
- speed reducer
- assembly
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 37
- 239000006096 absorbing agent Substances 0.000 claims description 19
- 230000035939 shock Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/121—Constructional features of arms the arm having an H or X-shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/20—Stationary vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
An independent suspension integrated wheel-side motor assembly is used for automobile manufacturing. The two upper cross arms are symmetrical about the vertical plane of the axis of the hub and are connected with an upper cross arm mounting seat on the upright post through a revolute pair, and the rotation axes are overlapped; the lower cross arm structure is X-shaped, one end of the lower cross arm is connected with a lower cross arm mounting seat on the upright post in two revolute pairs, and the other end of the lower cross arm is connected with the frame by adopting two coaxial revolute pairs; the two C-shaped arms are symmetrical about the vertical plane of the axis of the hub, and the two C-shaped arms are connected with the C-shaped arm mounting holes on the upright post; the motor is provided with an end cover, a flange plate is arranged on the end cover, the motor is fixed in a stepped hole in the upright post, the upright post and the shell of the main speed reducer are of an integrated structure, and the output power of the motor is transmitted to the main speed reducer, then transmitted to the hub reduction gear through the spline shaft and finally transmitted to the hub assembly. The invention integrates the motor, the transmission system, the independent suspension and the braking system, simplifies the system, has highly concentrated power, can reduce the unsprung mass of the vehicle and the dynamic load of the wheels, and improves the smoothness of the vehicle.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to an integrated wheel-side motor assembly of an independent suspension.
Background
To meet the market demand of new energy vehicles, more and more vehicle manufacturers are trying to use an electric motor instead of an engine to provide power in the development of new vehicle models. At present, most of pure electric vehicles adopt an integral rigid bridge of a traditional vehicle and a motor externally-hung structure, so that the transmission efficiency of the structure is low, the power loss and the occupied space are large, and the arrangement of batteries is even influenced, so that the driving range of the vehicle is short; on the other hand, because the integral rigid axle is adopted, the left wheel and the right wheel are mutually influenced, and the maneuverability and the comfort of the vehicle are reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an independent suspension integrated wheel-side motor assembly which is used for replacing the traditional structure that a rigid bridge is combined with a central motor so as to meet the requirements of comfort, riding convenience, energy conservation and environmental protection of vehicles.
In order to achieve the purpose, the invention comprises a first upper cross arm, a second upper cross arm, a lower cross arm, a first C-shaped arm, a second C-shaped arm, a motor, a main speed reducer, a wheel-side speed reducer, an air spring, a shock absorber, an upright post, a flange shaft tube, a brake assembly and a hub assembly; the first upper cross arm and the second upper cross arm are symmetrical about a vertical plane of the axis of the hub and are respectively connected with two upper cross arm mounting seats on the stand column as revolute pairs, and the rotation axes are overlapped; the structure of the lower cross arm is X-shaped, one end of the lower cross arm is connected with two lower cross arm mounting seats on the upright post in two revolute pairs, and the other end of the lower cross arm is connected with the frame by two coaxial revolute pairs; the first C-shaped arm and the second C-shaped arm are symmetrical about a vertical plane of the axis of the hub, and the first C-shaped arm and the second C-shaped arm are connected with a C-shaped arm mounting hole in the upright post through a bolt; the motor is provided with an end cover, a flange plate is arranged on the end cover, the motor is fixed in a stepped hole in the upright post through a flange bolt, the upright post and a shell of the main speed reducer are of an integral structure, the output power of the motor is transmitted to the main speed reducer to be subjected to primary speed reduction, then is transmitted to the hub reduction gear through the spline shaft to be subjected to secondary speed reduction, and finally is transmitted to the hub assembly.
The first upper cross arm and the second upper cross arm are provided with frame mounting interfaces and are connected with the frame to form a revolute pair; the axes of the revolute pair formed by the first upper cross arm, the second upper cross arm and the frame are superposed.
The flange shaft tube is connected with the shell of the main speed reducer through a flange bolt, the inside of the flange shaft tube is of a hollow structure, a spline shaft is arranged inside the flange shaft tube and is simultaneously connected with the output end of the main speed reducer and the input end of the hub reduction gear, a hub assembly is arranged outside the flange shaft tube and can rotate around the flange shaft tube; the input end of the main speed reducer is fixedly connected with the output end of the motor, the output end of the hub speed reducer is fixedly connected with the hub assembly, the main speed reducer is a non-coaxial speed reducer, the hub speed reducer is a coaxial speed reducer, and the axis height of the hub assembly is higher than that of the motor.
The tail ends of the first C-shaped arm and the second C-shaped arm are respectively provided with an air spring and a mounting interface of a shock absorber; the number of the air springs is two, the two air springs are respectively arranged at the secondary tail ends of the first C-shaped arm and the second C-shaped arm and are symmetrical about the vertical plane of the axis of the hub; the number of the shock absorbers is two, the shock absorbers are respectively installed at the tail ends of the first C-shaped arm and the second C-shaped arm, and the shock absorbers are symmetrical about a vertical plane of the axis of the hub.
The brake assembly is fixedly connected to the flange shaft tube, and the brake assembly is matched with a brake disc on the hub assembly to realize the braking function of the vehicle.
Compared with the prior art, the invention combines the structural advantages of the disconnected independent suspension, the wheel-side motor drive and the low-floor bridge, and can greatly improve the comfort, riding convenience, energy conservation and environmental protection of the existing urban bus. The double-cross arm independent suspension structure is adopted, the problem of large unsprung mass of the integral rigid bridge is well solved, and meanwhile, under the condition of the same spring pitch, the roll angle rigidity of the independent suspension is higher than that of the integral rigid bridge, so that the safety of a vehicle is improved; by adopting the wheel-side motor arrangement scheme, the problems of large space volume, more parts of a transmission system, long transmission chain and the like of the traditional centralized drive are solved; the lower cross arm is designed to be X-shaped, and two coaxial revolute pairs are adopted to be connected with the upright posts, so that the problem of connection strength under large tonnage is solved; the first C-shaped arm and the second C-shaped arm are adopted, so that the problem of spatial arrangement of the double air springs and the double shock absorbers is reasonably solved; the problem of low bearing tonnage of the traditional double-cross arm independent suspension is solved by adopting double air springs and double shock absorbers; the motor, the transmission system, the suspension and the brake system are integrated, so that the space and the weight of the system are reduced, and the comfort and the safety of a vehicle are improved; the main speed reducer adopts a non-coaxial structure, so that the axis of the wheel is higher than that of the motor, the mounting height of the motor is reduced, the floor height of the vehicle is reduced, and the convenience for passengers to ride the vehicle is improved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a perspective view of the column of fig. 1.
In the figure: 1-a first upper cross arm; 2-a second upper cross arm; 3-a lower cross arm; 4-a first C-arm; 5-a second C-arm; 6, a motor; 7-a main reducer; 8-wheel reduction gear; 9-an air spring; 10-a shock absorber; 11-upright column, 12-flange axle tube; 13-a brake assembly; 14-a hub assembly, 15-an upper cross arm mounting base, 16-a lower cross arm mounting base and 17-a C-shaped arm mounting hole.
Detailed Description
As shown in fig. 1, 2 and 3, the present invention mainly includes a first upper cross arm 1, a second upper cross arm 2, a lower cross arm 3, a first C-shaped arm 4, a second C-shaped arm 5, a motor 6, a final drive 7, a wheel reduction gear 8, an air spring 9, a shock absorber 10, a column 11, a flange shaft tube 12, a brake assembly 13 and a hub assembly 14.
The first upper cross arm 1 and the second upper cross arm 2 are respectively connected with two upper cross arm mounting seats 15 on the upright posts 11 through revolute pairs, the revolute axes of the two upper cross arms are overlapped, the first upper cross arm 1 and the second upper cross arm 2 can be rotatablely connected with the vehicle frame, the first upper cross arm 1 and the second upper cross arm 2 are also overlapped with the revolute pair axes of the vehicle frame, and the first upper cross arm 1 and the second upper cross arm 2 are symmetrical about the vertical plane (called plane α for short) of the axis of the hub.
The lower cross arm 3 is in an X shape, one end of the lower cross arm 3 is connected with two lower cross arm mounting seats 16 on the upright post 11 through a revolute pair, the two revolute pairs are coaxial, the other end of the lower cross arm 3 can be connected with the frame through two coaxial revolute pairs, and the connection strength can be improved through the two coaxial revolute pairs.
The motor 6 is provided with an end cover, the end cover is provided with a flange plate, and the motor 6 is fixed in a stepped hole in the upright post 11 through a flange bolt. The upright post 11 and the shell of the main reducer 7 are of an integral structure, the main reducer 7 is used for carrying out primary speed reduction by motor power, the main reducer 7 is a non-coaxial reducer, and the wheel reducer 8 is a coaxial reducer, so that the height difference exists between the axis of a wheel and the central axis of the motor 6, and the height of the floor of the vehicle can be reduced to the maximum extent.
The flange shaft tube 12 is connected with the shell of the main speed reducer 7 through a flange bolt, and the inside of the flange shaft tube 12 is of a hollow structure. The inside installation integral key shaft of flange central siphon 12, the integral key shaft is connected with the output of main reducer 7, the input of hub reduction gear 8 simultaneously. The hub assembly 14 is installed on the flange shaft tube 12, the hub assembly 14 can rotate around the flange shaft tube 12, the hub assembly 14 is fixedly connected with the output end of the hub reduction gear 8, the output power of the motor 6 is subjected to primary speed reduction through the main speed reducer assembly 7, then is transmitted to the hub reduction gear 8 through the spline shaft, is subjected to secondary speed reduction through the hub reduction gear 8, and finally is transmitted to the hub assembly 14.
The first C-shaped arm 4 and the second C-shaped arm 5 are symmetrical about a plane α, the first C-shaped arm 4 and the second C-shaped arm 5 are fastened with a C-shaped arm mounting hole 17 on an upright post 11 through bolts, the tail ends of the first C-shaped arm 4 and the second C-shaped arm 5 are respectively provided with an air spring 9 and a shock absorber 10 mounting seat, the number of the air springs 9 and the number of the shock absorbers 10 are two, the air springs 9 and the shock absorbers 10 are respectively symmetrical about a plane α, the air springs 9 are respectively mounted at the secondary tail ends of the first C-shaped arm 4 and the second C-shaped arm 5, the shock absorbers 10 are respectively mounted at the tail ends of the first C-shaped arm 4 and the second C-shaped arm 5, the air springs 9 mainly serve to bear vertical loads of a vehicle frame, and the shock absorbers 10 mainly serve to absorb dynamic loads of ground.
The brake assembly 13 is installed on the flange shaft tube 12, and the brake assembly 13 is matched with a brake disc on the hub assembly, so that the vehicle braking function is realized.
Claims (5)
1. The utility model provides an integrated round of limit motor assembly of independent suspension which characterized in that: the device comprises a first upper cross arm (1), a second upper cross arm (2), a lower cross arm (3), a first C-shaped arm (4), a second C-shaped arm (5), a motor (6), a main speed reducer (7), a wheel-side speed reducer (8), an air spring (9), a shock absorber (10), an upright post (11), a flange shaft tube (12), a brake assembly (13) and a hub assembly (14); the first upper cross arm (1) and the second upper cross arm (2) are symmetrical about a vertical plane of a hub axis and are respectively connected with two upper cross arm mounting seats (15) on the upright post (11) as revolute pairs, and the rotation axes are overlapped; the structure of the lower cross arm (3) is X-shaped, one end of the lower cross arm (3) is connected with two lower cross arm mounting seats (16) on the upright post (11) in two revolute pairs, and the other end of the lower cross arm (3) is connected with the frame by two coaxial revolute pairs; the first C-shaped arm (4) and the second C-shaped arm (5) are symmetrical about a vertical plane of the axis of the hub, and are connected with a C-shaped arm mounting hole (17) in the upright post (11) through a bolt; motor (6) have the end cover, have the ring flange on the end cover, in motor (6) were fixed in stand (11) inside shoulder hole through flange bolt, stand (11) and main reducer (7) shell structure as an organic whole, motor (6) output power transmitted main reducer (7), carried out first speed reduction, passed to hub reduction gear (8) by the integral key shaft again on, carried out the second and slowed down, transmitted wheel hub assembly (14) at last.
2. The integrated wheel-edge motor assembly of independent suspension as claimed in claim 1, wherein: the first upper cross arm (1) and the second upper cross arm (2) are provided with frame mounting interfaces and are connected with the frame to form a revolute pair; the first upper cross arm (1) and the second upper cross arm (2) are superposed with the axis of a rotating pair formed by the frame.
3. The integrated wheel-edge motor assembly of independent suspension as claimed in claim 1, wherein: the flange shaft tube (12) is connected with a shell of the main speed reducer (7) through a flange bolt, the inside of the flange shaft tube (12) is of a hollow structure, a spline shaft is mounted inside the flange shaft tube (12), the spline shaft is simultaneously connected with the output end of the main speed reducer (7) and the input end of the hub reduction gear (8), a hub assembly (14) is mounted outside the flange shaft tube (12), and the hub assembly (14) can rotate around the flange shaft tube (12); the input end of a main speed reducer (7) is fixedly connected with the output end of a motor (6), the output end of a wheel-side speed reducer (8) is fixedly connected with a wheel hub assembly (14), the main speed reducer (7) is a non-coaxial speed reducer, the wheel-side speed reducer (8) is a coaxial speed reducer, and the axis of the wheel hub assembly (14) is higher than the axis of the motor (6).
4. The integrated wheel-edge motor assembly of independent suspension as claimed in claim 1, wherein: the tail ends of the first C-shaped arm (4) and the second C-shaped arm (5) are respectively provided with an air spring (9) and a mounting interface of a shock absorber (10); the number of the air springs (9) is two, the two air springs are respectively arranged at the secondary tail ends of the first C-shaped arm (4) and the second C-shaped arm (5), and the two air springs are symmetrical about the vertical plane of the axis of the hub; the number of the shock absorbers (10) is two, the shock absorbers are respectively arranged at the tail ends of the first C-shaped arm (4) and the second C-shaped arm (5), and the shock absorbers are symmetrical about a vertical plane of the axis of the hub.
5. The integrated wheel-edge motor assembly of independent suspension as claimed in claim 1, wherein: the brake assembly (13) is fixedly connected to the flange shaft tube (12), and the brake assembly (13) is matched with a brake disc on the hub assembly (14) to realize the braking function of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638458.2A CN111361371A (en) | 2019-07-16 | 2019-07-16 | Integrated wheel limit motor assembly of independent suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638458.2A CN111361371A (en) | 2019-07-16 | 2019-07-16 | Integrated wheel limit motor assembly of independent suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111361371A true CN111361371A (en) | 2020-07-03 |
Family
ID=71200166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910638458.2A Pending CN111361371A (en) | 2019-07-16 | 2019-07-16 | Integrated wheel limit motor assembly of independent suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111361371A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213162A1 (en) * | 2000-12-09 | 2002-06-12 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Independent wheel suspension for sprung, steerable wheel |
| US20140333120A1 (en) * | 2012-01-03 | 2014-11-13 | Pmp Pro-Mec S. P. A. | Motor-reducer with integrated brake and inverter for direct transmission to the wheel of an electrically driven vehicle |
| WO2016082629A1 (en) * | 2014-11-24 | 2016-06-02 | 舍弗勒技术股份两合公司 | Wheel hub drive assembly |
| CN107323249A (en) * | 2017-07-20 | 2017-11-07 | 谷林波 | A kind of wheel motor drive system with independent suspension and automobile |
| CN109455043A (en) * | 2018-12-27 | 2019-03-12 | 苏州绿控传动科技股份有限公司 | A kind of new energy electric drive axle retarder |
| CN210309799U (en) * | 2019-07-16 | 2020-04-14 | 东风德纳车桥有限公司 | Integrated wheel limit motor assembly of independent suspension |
-
2019
- 2019-07-16 CN CN201910638458.2A patent/CN111361371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213162A1 (en) * | 2000-12-09 | 2002-06-12 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Independent wheel suspension for sprung, steerable wheel |
| US20140333120A1 (en) * | 2012-01-03 | 2014-11-13 | Pmp Pro-Mec S. P. A. | Motor-reducer with integrated brake and inverter for direct transmission to the wheel of an electrically driven vehicle |
| WO2016082629A1 (en) * | 2014-11-24 | 2016-06-02 | 舍弗勒技术股份两合公司 | Wheel hub drive assembly |
| CN107323249A (en) * | 2017-07-20 | 2017-11-07 | 谷林波 | A kind of wheel motor drive system with independent suspension and automobile |
| CN109455043A (en) * | 2018-12-27 | 2019-03-12 | 苏州绿控传动科技股份有限公司 | A kind of new energy electric drive axle retarder |
| CN210309799U (en) * | 2019-07-16 | 2020-04-14 | 东风德纳车桥有限公司 | Integrated wheel limit motor assembly of independent suspension |
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