CN107444043B - Rear suspension device of electric automobile - Google Patents
Rear suspension device of electric automobile Download PDFInfo
- Publication number
- CN107444043B CN107444043B CN201710672022.6A CN201710672022A CN107444043B CN 107444043 B CN107444043 B CN 107444043B CN 201710672022 A CN201710672022 A CN 201710672022A CN 107444043 B CN107444043 B CN 107444043B
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- China
- Prior art keywords
- rear axle
- rod
- pin shaft
- main
- suspension device
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- 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.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 27
- 230000035939 shock Effects 0.000 claims description 28
- 239000006096 absorbing agent Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
- B60G9/02—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle, e.g. the pivotal axis being parallel to the longitudinal axis of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
- B60G2200/32—Rigid axle suspensions pivoted
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to an electric automobile rear suspension device, which comprises an integrated rear axle, two longitudinal pull rods connected with a frame and arranged at the lower part of the rear axle, a main damping mounting seat and a main damping spring at the upper part of the rear axle, and two auxiliary damping and transverse positioning rods connected at the rear part of the rear axle.
Description
Technical Field
The invention relates to the technical field of parts of electric automobiles, in particular to a rear suspension device of an electric automobile.
Background
The low-speed electric automobile, also called electric car, especially in vast urban and rural junction and rural areas of our country, has obtained fine popularization and application as the trip tool of vast people, and the trip in daytime can keep out wind and rain, can charge with the commercial power after returning home evening directly, does not need special charging station and electric pile, and is simple and practical, deeply popular by vast people, in order to satisfy people's demand, relevant enterprise and unit have carried out a lot of research and development to this, and current such electric automobile's rear axle and frame are all basically adopted the spring board to cushion and shock attenuation, and shock absorption ability is poor, and riding comfort is not high, remains to be improved.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a rear suspension device for an electric vehicle.
The technical scheme of the invention is as follows: the utility model provides an electric automobile rear suspension device, includes that two of integral type rear axle, rear axle lower part installation and the longitudinal tie rod of frame connection, main shock attenuation mount pad and main damping spring on rear axle upper portion, connects two vice shock attenuation, the horizontal locating lever at rear axle rear portion, characterized by: the rear axle comprises a main body, wheel mounting plates at two ends and a differential mechanism in the middle; the two longitudinal pull rods are slot-shaped bodies with downward openings and are symmetrically arranged on two sides of the rear axle, the rear parts of the longitudinal pull rods are connected with a slot-shaped pull rod mounting seat with downward openings, which is fixed on the lower part of the rear axle, through two pin shafts, and the front ends of the longitudinal pull rods are hinged with the frame through a revolute pair; the main damping support is a disc body, a protruding part is arranged in the middle of the disc body, the lower end of the main damping spring is sleeved on the protruding part, and the upper end of the main damping spring is used for being connected with a chassis of the vehicle frame; the rear axle is characterized in that a triangular positioning rod mounting frame horizontally pointing to the rear is arranged behind the right side of the rear axle, the mounting frame comprises a straight rod vertical to the rear axle and an inclined rod forming an included angle with the rear axle, one end of the transverse positioning rod is connected with the tail of the straight rod through a revolute pair, and the other end of the transverse positioning rod is connected with a chassis of the vehicle frame through a revolute pair.
Preferably, the two auxiliary shock absorbers are symmetrically arranged on the inner sides of the two main shock absorbing springs respectively, the lower ends of the auxiliary shock absorbers are hinged to the auxiliary shock absorbing mounting seats which are fixed on the lower surfaces of the rear axles and are provided with upward slot-shaped openings, the auxiliary shock absorbers are hydraulic shock absorbers, and the upper ends of the auxiliary shock absorbers are used for being connected with the chassis of the vehicle frame.
Preferably, the rear part of the longitudinal pull rod is provided with two pin shaft sleeves, a cylindrical buffer column body is arranged in the two pin shaft sleeves, and the pin shaft penetrates through the inside of a shaft hole in the middle of the buffer column body.
Preferably, the revolute pair at the front end of the longitudinal pull rod comprises a pin shaft sleeve, a cylindrical buffer column body arranged in the pin shaft sleeve, and a hinge pin shaft penetrating through the shaft hole in the middle of the buffer column body.
The invention has the technical effects that:
the rear suspension device of the electric automobile is arranged at the rear of the bottom of the frame and is used for installing wheels and providing damping effect for the frame, has good damping effect and strong buffering capacity and is particularly suitable for the electric automobile.
Drawings
Fig. 1 is a schematic top view of a rear suspension device of the electric vehicle;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 3 is a schematic view of the cross-sectional B-B structure of FIG. 1;
FIG. 4 is a schematic perspective view of the rear suspension device of the electric vehicle;
FIG. 5 is a second perspective view of the rear suspension device of the electric vehicle;
FIG. 6 is a schematic perspective view of the rear axle of FIG. 1 with the welded components thereon;
FIG. 7 is a second perspective view of the rear axle of FIG. 1 with the welded components thereon;
FIG. 8 is a front view of the longitudinal tie of FIG. 1;
FIG. 9 is a schematic view of the cross-sectional C-C structure of FIG. 8;
FIG. 10 is a schematic view of the structure of section D-D of FIG. 8;
FIG. 11 is a schematic view of the E-E cross-sectional structure of FIG. 8;
fig. 12 is a schematic perspective view of fig. 8
In the drawings, a rear axle, a longitudinal pull rod, a wheel mounting disc, a main damping spring, a differential, a transverse positioning rod, a secondary damping rod, a straight rod, a rotating pair, an inclined rod, a pin shaft, a rotating pair, a pull rod mounting seat, a secondary damping mounting seat, a main damping support seat, a sleeve, a cylindrical damping cylinder and a groove-type pull rod body, wherein the rear axle, the longitudinal pull rod, the wheel mounting disc, the main damping spring, the differential and the transverse positioning rod are arranged in sequence, the transverse positioning rod and the transverse positioning rod are arranged in sequence, the transverse positioning rod and the auxiliary damping cylinder are arranged in sequence, and the rotary pair is arranged in sequence, the pull rod mounting seat and the auxiliary damping support seat.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Embodiment one: referring to fig. 1-12, an electric automobile rear suspension device in the drawing includes an integral rear axle, two longitudinal tie rods installed at the lower part of the rear axle and connected with a frame, a main damping mount pad and a main damping spring at the upper part of the rear axle, and two auxiliary damping and transverse positioning rods connected at the rear part of the rear axle, and is characterized in that: the rear axle comprises a main body, wheel mounting plates at two ends and a differential mechanism in the middle; the two longitudinal pull rods are slot-shaped bodies with downward openings and are symmetrically arranged on two sides of the rear axle, the rear parts of the longitudinal pull rods are connected with a slot-shaped pull rod mounting seat with downward openings, which is fixed on the lower part of the rear axle, through two pin shafts, and the front ends of the longitudinal pull rods are hinged with the frame through a revolute pair; the main damping support is a disc body, a protruding part is arranged in the middle of the disc body, the lower end of the main damping spring is sleeved on the protruding part, and the upper end of the main damping spring is used for being connected with a chassis of the vehicle frame; the rear axle is characterized in that a triangular positioning rod mounting frame horizontally pointing to the rear is arranged behind the right side of the rear axle, the mounting frame comprises a straight rod vertical to the rear axle and an inclined rod forming an included angle with the rear axle, one end of the transverse positioning rod is connected with the tail of the straight rod through a revolute pair, and the other end of the transverse positioning rod is connected with a chassis of the vehicle frame through a revolute pair.
The two auxiliary shock absorbers are symmetrically arranged on the inner sides of the two main shock absorbing springs respectively, the lower ends of the auxiliary shock absorbers are hinged to an auxiliary shock absorbing mounting seat which is fixed on the lower surface of the rear axle and is provided with an upward slot-shaped opening, the auxiliary shock absorbers are hydraulic shock absorbers, and the upper ends of the auxiliary shock absorbers are used for being connected with a chassis of the vehicle frame.
The longitudinal pull rod, the pull rod mounting seat and the auxiliary shock absorption mounting seat all adopt hollow groove structures, so that the dead weight can be reduced, and the dead weight of the whole vehicle is reduced.
The rear part of the longitudinal pull rod is provided with two pin shaft sleeves, a cylindrical buffer column body is arranged in each pin shaft sleeve, and the pin shaft penetrates through the shaft hole in the middle of the buffer column body.
The revolute pair at the front end of the longitudinal pull rod comprises a pin shaft sleeve, a cylindrical buffer column body arranged in the pin shaft sleeve, and a hinge pin shaft penetrating through the shaft hole in the middle of the buffer column body.
The impact of vehicle speed change wheel rear axles and the like on the vehicle frame can be reduced by the cylindrical buffer columns, and if rubber materials are adopted, the buffer effect is better.
Claims (3)
1. The utility model provides an electric automobile rear suspension device, includes that two of integral type rear axle, rear axle lower part installation and the longitudinal tie rod of frame connection, main shock attenuation mount pad and main damping spring on rear axle upper portion, connects two vice shock attenuation, the horizontal locating lever at rear axle rear portion, characterized by: the rear axle comprises a main body, wheel mounting plates at two ends and a differential mechanism in the middle; the two longitudinal pull rods are slot-shaped bodies with downward openings and are symmetrically arranged on two sides of the rear axle, the rear parts of the longitudinal pull rods are connected with a slot-shaped pull rod mounting seat with downward openings, which is fixed on the lower part of the rear axle, through two pin shafts, and the front ends of the longitudinal pull rods are hinged with the frame through a revolute pair; the main damping support is a disc body, a protruding part is arranged in the middle of the disc body, the lower end of the main damping spring is sleeved on the protruding part, and the upper end of the main damping spring is used for being connected with a chassis of the vehicle frame; a triangular positioning rod mounting frame horizontally pointing to the rear is arranged at the rear of the right side of the rear axle, the mounting frame comprises a straight rod vertical to the rear axle and an inclined rod forming an included angle with the rear axle, one end of the transverse positioning rod is connected with the tail part of the straight rod through a revolute pair, and the other end of the transverse positioning rod is connected with a chassis of the vehicle frame through a revolute pair; the revolute pair at the front end of the longitudinal pull rod comprises a pin shaft sleeve, a cylindrical buffer column body arranged in the pin shaft sleeve, and a hinge pin shaft penetrating through the shaft hole in the middle of the buffer column body.
2. The electric automobile rear suspension device according to claim 1, characterized in that: the two auxiliary shock absorbers are symmetrically arranged on the inner sides of the two main shock absorbing springs respectively, the lower ends of the auxiliary shock absorbers are hinged to an auxiliary shock absorbing mounting seat which is fixed on the lower surface of the rear axle and is provided with an upward slot-shaped opening, the auxiliary shock absorbers are hydraulic shock absorbers, and the upper ends of the auxiliary shock absorbers are used for being connected with a chassis of the vehicle frame.
3. The electric automobile rear suspension device according to claim 1, characterized in that: the rear part of the longitudinal pull rod is provided with two pin shaft sleeves, a cylindrical buffer column body is arranged in each pin shaft sleeve, and the pin shaft penetrates through the shaft hole in the middle of the buffer column body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672022.6A CN107444043B (en) | 2017-08-08 | 2017-08-08 | Rear suspension device of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672022.6A CN107444043B (en) | 2017-08-08 | 2017-08-08 | Rear suspension device of electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107444043A CN107444043A (en) | 2017-12-08 |
| CN107444043B true CN107444043B (en) | 2023-04-28 |
Family
ID=60491380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710672022.6A Active CN107444043B (en) | 2017-08-08 | 2017-08-08 | Rear suspension device of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107444043B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515094A (en) * | 2018-12-29 | 2019-03-26 | 新乡市合众鑫辉车业有限公司 | A kind of electric car rear suspension structure |
| CN110254156A (en) * | 2019-07-05 | 2019-09-20 | 吴桃 | Shock absorbing device for five-wheeled vehicles |
| CN112298433B (en) * | 2020-11-02 | 2022-09-23 | 贵州大学 | Tricycle rear axle shock attenuation suspension |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1609631A1 (en) * | 2004-06-24 | 2005-12-28 | GM Global Technology Operations, Inc. | Rear suspension for passenger vehicle with driven rear wheels |
| WO2009068781A2 (en) * | 2007-11-12 | 2009-06-04 | Renault S.A.S | Motor vehicle rear suspension with toe-in control link |
| CN104325855A (en) * | 2014-11-19 | 2015-02-04 | 重庆永淳新能源科技有限公司 | Anti-collision safety rear axle structure for rear-drive electric automobile |
| CN204296395U (en) * | 2014-11-18 | 2015-04-29 | 重庆永淳新能源科技有限公司 | A kind of rear axle of electric automobile damping mechanism |
-
2017
- 2017-08-08 CN CN201710672022.6A patent/CN107444043B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1609631A1 (en) * | 2004-06-24 | 2005-12-28 | GM Global Technology Operations, Inc. | Rear suspension for passenger vehicle with driven rear wheels |
| WO2009068781A2 (en) * | 2007-11-12 | 2009-06-04 | Renault S.A.S | Motor vehicle rear suspension with toe-in control link |
| CN204296395U (en) * | 2014-11-18 | 2015-04-29 | 重庆永淳新能源科技有限公司 | A kind of rear axle of electric automobile damping mechanism |
| CN104325855A (en) * | 2014-11-19 | 2015-02-04 | 重庆永淳新能源科技有限公司 | Anti-collision safety rear axle structure for rear-drive electric automobile |
Non-Patent Citations (1)
| Title |
|---|
| 新型机动车前轮减震器设计;左申傲等;《安徽工程科技学院学报(自然科学版)》(第03期);全文 * |
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| CN107444043A (en) | 2017-12-08 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230410 Address after: 450000 south of West Wutong street, West Fourth Ring Road, high tech Zone, Zhengzhou City, Henan Province Applicant after: HENAN XINZHONGJI TRAFFIC TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 467500 industrial cluster of Ruzhou City, Pingdingshan City, Henan Province Applicant before: HENAN SENDI NEW ENERGY AUTOMOBILE CO.,LTD. |
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