CN108909391A - Major-minor spring structure and suspension - Google Patents
Major-minor spring structure and suspension Download PDFInfo
- Publication number
- CN108909391A CN108909391A CN201810664074.3A CN201810664074A CN108909391A CN 108909391 A CN108909391 A CN 108909391A CN 201810664074 A CN201810664074 A CN 201810664074A CN 108909391 A CN108909391 A CN 108909391A
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- CN
- China
- Prior art keywords
- leaf spring
- spring
- major
- mounting base
- minor
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/08—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially transverse to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
- B60G11/113—Mountings on the axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
- B60G2202/114—Leaf spring transversally arranged
-
- 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
- B60G2204/12—Mounting of springs or dampers
- B60G2204/121—Mounting of leaf springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Major-minor spring structure and suspension provided by the invention, are related to suspension manufacturing technology field, which includes：Wheel hub column and transverse leaf spring, flexible leaf spring mounting base is provided on the wheel hub column, it is connect by fixing seat in the middle part of leaf spring with vehicle frame among the transverse leaf spring, the transverse leaf spring end is connect by leaf spring end anchorage with leaf spring mounting base, auxiliary spring is provided on the vehicle frame, the auxiliary spring can be contacted with the leaf spring mounting base.Vehicle height can reduce by transverse leaf spring and auxiliary spring in major-minor spring structure provided by the invention, using major-minor spring structure, occupancy suspension space is smaller than monolithic leaf spring occupancy suspension space, has vehicle lightweight and advantages of simple structure and simple.
Description
Technical field
The present invention relates to suspension manufacturing technology fields, more particularly, to a kind of major-minor spring structure and suspension.
Background technique
Traditional commercial vehicle is mainly longitudinal leaf spring major-minor spring structure, and major-minor reed uses leaf spring, newest skill
Art uses composite material reed.The quantity of conventional commercial car owner's auxiliary spring plate spring sheet is more, a large amount of Steel material cause it is at high cost and
Steel plate the space occupied is big, heavier mass.
Since most commercial vehicle rear axles are drive axles, the especially breakaway-element center electric drive axle of state-of-the-art technology and transmission
Axis, rear axle cause the horizontal space on drive axle chassis and vertical space larger, comfortably since unloaded and fully loaded mass difference is larger
Property is bad.Existing commercial vehicle uses multi-disc leaf spring, and occupancy suspension space is larger, and complete vehicle weight is larger.
Existing commercial vehicle uses multi-disc leaf spring, and occupancy suspension space is larger, the larger disadvantage of complete vehicle weight.
Summary of the invention
It is an object of the present invention to provide a kind of major-minor spring structures, to solve existing commercial vehicle using multi-disc plate
Spring, occupancy suspension space is larger, the larger technical problem of complete vehicle weight.
It is another object of the present invention to provide a kind of suspension, the major-minor spring structure including above-mentioned offer.
In order to solve the above technical problems, the invention adopts the following technical scheme；The major-minor that first aspect present invention provides
Spring structure, wherein including：Wheel hub column and transverse leaf spring are provided with flexible leaf spring mounting base on the wheel hub column,
It is connect by fixing seat in the middle part of leaf spring with vehicle frame among the transverse leaf spring, the transverse leaf spring end is fixed by leaf spring end
Seat is connect with leaf spring mounting base, auxiliary spring is provided on the vehicle frame, the auxiliary spring can be contacted with the leaf spring mounting base.
Transverse leaf spring end is connected by leaf spring end anchorage and leaf spring mounting base in major-minor spring structure provided by the invention
It connects, is provided with auxiliary spring on the vehicle frame, vehicle height can reduce by transverse leaf spring and auxiliary spring, using major-minor spring structure, account for
It is smaller than monolithic leaf spring occupancy suspension space with suspension space, there is vehicle lightweight and advantages of simple structure and simple.
In any of the above-described technical solution, further, the auxiliary spring tilting action is in the leaf spring mounting base.So that
Reserved suspension space is bigger.
In any of the above-described technical solution, further, the auxiliary spring and the angle of the leaf spring mounting base are not more than
45°.Preferably, the angle of auxiliary spring and leaf spring mounting base is 30 °.
In any of the above-described technical solution, further, the leaf spring mounting base includes bottom plate and main body, the leaf spring end
Portion's fixing seat is connect with the bottom plate, and inclined surface is provided in the main body, and the auxiliary spring acts on the inclined surface.
In any of the above-described technical solution, further, the leaf spring end anchorage is fixed on leaf spring by U bolt
In mounting base.
In any of the above-described technical solution, further, the leaf spring end leaf spring mounting base and the transverse leaf spring it
Between be provided with nonmetallic cushion block.
Nonmetallic cushion block is provided between the transverse leaf spring and the leaf spring mounting base.
In any of the above-described technical solution, further, the auxiliary spring is arranged on vehicle frame by bolt.
In any of the above-described technical solution, further, upper arm flexural pivot hole is respectively arranged on the wheel hub column under
Arm flexural pivot hole.
In any of the above-described technical solution, further, the leaf spring mounting base is arranged corresponding to upper arm flexural pivot hole.
The suspension that second aspect of the present invention provides is provided with the major-minor spring structure of first aspect offer, therefore has first
The whole beneficial effects for the major-minor spring structure that aspect provides, just do not repeat one by one herein.
In major-minor spring structure provided by the invention, main spring is transverse leaf spring, and auxiliary spring load-deflection curve includes auxiliary spring rigidity
Characteristic, limited block stiffness characteristics, transverse leaf spring are arranged in above rear axle, are conducive to arrangement jack shaft.Pass through in the middle part of transverse leaf spring
Fixing seat is fixed with vehicle frame in the middle part of leaf spring, and transverse leaf spring both ends are supported in the leaf spring end anchorage of wheel hub column；Auxiliary spring is oblique
Arrangement, the fixed vehicle frame in one end are set, the other end acts on leaf spring supporting plate, reduces vehicle height.
By adopting the above technical scheme, the present invention has the advantages that：
Transverse leaf spring end is connected by leaf spring end anchorage and leaf spring mounting base in major-minor spring structure provided by the invention
It connects, is provided with auxiliary spring on the vehicle frame, vehicle height can reduce by transverse leaf spring and auxiliary spring, using major-minor spring structure, account for
It is smaller than monolithic leaf spring occupancy suspension space with suspension space, there is vehicle lightweight and advantages of simple structure and simple.
Further, the auxiliary spring tilting action is in the leaf spring mounting base.
Further, stating leaf spring mounting base includes bottom plate and main body, and the leaf spring end anchorage is connect with the bottom plate,
Inclined surface is provided in the main body, the auxiliary spring acts on the inclined surface.
Further, the leaf spring end anchorage is fixed in leaf spring mounting base by U bolt.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
It below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure diagram for the major-minor spring structure that the embodiment of the present invention one provides；
Fig. 2 is the partial exploded view for the major-minor spring structure that the embodiment of the present invention one provides.
Appended drawing reference：
1：Wheel hub column； 2：U bolt； 3：Leaf spring supporting plate；
4：Auxiliary spring； 5：Leaf spring end anchorage； 6：Fixing seat in the middle part of leaf spring；
7：Transverse leaf spring； 8：Leaf spring mounting base； 9：Nonmetallic cushion block；
10：Upper arm flexural pivot hole.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiments herein and embodiment can be combined with each other.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Explanation is further explained to the present invention below with reference to specific embodiment.
Embodiment one
Fig. 1 is the overall structure diagram for the major-minor spring structure that the embodiment of the present invention one provides；
Fig. 2 is the partial exploded view for the major-minor spring structure that the embodiment of the present invention one provides.
As depicted in figs. 1 and 2, the major-minor spring structure that the embodiment of first aspect present invention provides, including：Wheel hub column 1
With transverse leaf spring 7, flexible leaf spring mounting base 8 is provided on the wheel hub column 1, is passed through among the transverse leaf spring 7
Fixing seat 6 is connect with vehicle frame in the middle part of leaf spring, and 7 end of transverse leaf spring is connected by leaf spring end anchorage 5 and leaf spring mounting base 8
It connects, auxiliary spring 4 is provided in the leaf spring mounting base 8, the auxiliary spring 4 is connect with the vehicle frame.
The material of leaf spring mounting base 8 is rubber or polyurethane, and the material of auxiliary spring 4 is also rubber or polyurethane.
7 end of transverse leaf spring passes through leaf spring end anchorage 5 and leaf spring mounting base 8 in major-minor spring structure provided by the invention
It connects, is provided with auxiliary spring 4 on the vehicle frame, vehicle height can reduce by transverse leaf spring 7 and auxiliary spring 4, using major-minor spring knot
Structure, occupancy suspension space are smaller than monolithic leaf spring occupancy suspension space, have vehicle lightweight and advantages of simple structure and simple.
Monolithic transverse leaf spring 7 is small in size, and 4 structure size of auxiliary spring of rubber is identical as traditional suspension limited block, does not account for additional
Space, the structure of monolithic transverse leaf spring 7 and auxiliary spring 4 reduce suspension space, reduce complete vehicle weight.The material of transverse leaf spring 7 can be with
For steel or meet material, composite material is the mixture of epoxy resin and glass fibre.
The auxiliary spring 4 of 7 compound rubber of transverse leaf spring, instead of the thirty or forty sheet in traditional multiple-leaf spring major-minor spring rear suspension
Spring, or few nearly ten leaf springs of piece major-minor spring rear suspension, small volume, weight is less than original 1/10th.Arragement construction is especially
Suitable for independent suspension rear overhang.
Auxiliary spring 4 is hollow structure, and load is small, compression travel hour, and the rigidity of auxiliary spring 4 is small, is in auxiliary spring active phase, mentions
For elastic element function.When load is big, compression travel is big, the rigidity of auxiliary spring 4 is big, is in limited block active phase, provides buffering
Limit function.Auxiliary spring 4 is provided between vehicle frame and suspension, it is suitable with conventional buffer block product, and buffer block structure, the pair of rubber
4 stiffness curve leading portion of spring and traditional 4 stiffness curve of auxiliary spring coincide；After compressing certain stroke, rear end stiffness curve and traditional suspension
Limited block stiffness curve coincide, and realizes major-minor spring rear overhang holder function.
In any of the above-described technical solution, further, 4 inclination contact of auxiliary spring acts on the leaf spring mounting base 8
On.So that reserved suspension space is bigger.
In any of the above-described technical solution, further, the auxiliary spring 4 and the angle of the leaf spring mounting base 8 are not more than
45°.Preferably, the angle of auxiliary spring 4 and leaf spring mounting base 8 is 30 °.
In any of the above-described technical solution, further, the leaf spring mounting base 8 includes bottom plate and main body, the leaf spring
End anchorage 5 is connect with the bottom plate, and inclined surface is provided in the main body, and the auxiliary spring 4 acts on the inclined surface.
In any of the above-described technical solution, further, the leaf spring end anchorage 5 is fixed on plate by U bolt 2
In spring mounting base 8.U bolt 2 is used to provide bigger longitudinal space for vehicle chassis arrangement.
In any of the above-described technical solution, further, the leaf spring end leaf spring mounting base 8 and the transverse leaf spring 7
Between be provided with nonmetallic cushion block 9.Nonmetallic cushion block 9 is provided between the transverse leaf spring 7 and the leaf spring mounting base 8.
Nonmetallic cushion block 9 is provided between fixing seat 6 in the middle part of the transverse leaf spring 7 and vehicle frame and leaf spring.The leaf spring
Middle part fixing seat 6 can be fixed on vehicle frame by U bolt 2, use U bolt 2 to provide for vehicle chassis arrangement bigger
Longitudinal space.
In any of the above-described technical solution, further, the auxiliary spring 4 is arranged on vehicle frame by bolt.
The suspension that second aspect of the present invention provides is provided with the major-minor spring structure of first aspect offer, therefore has first
The whole beneficial effects for the major-minor spring structure that aspect provides, just do not repeat one by one herein.
Embodiment two
In any of the above-described technical solution, further, 10 He of upper arm flexural pivot hole is respectively arranged on the wheel hub column 1
Lower arm flexural pivot hole.
In any of the above-described technical solution, further, the leaf spring mounting base 8 corresponds to upper arm flexural pivot hole 10 and sets
It sets.Leaf spring mounting base 8 is positioned close at Top Crossbeam flexural pivot hole.Remaining is as in the first embodiment, details are not described herein again.
In major-minor spring structure provided by the invention, main spring is transverse leaf spring 7, and 4 load-deflection curve of auxiliary spring includes that auxiliary spring is rigid
Characteristic, limited block stiffness characteristics are spent, transverse leaf spring 7 is arranged in above rear axle, is conducive to arrangement jack shaft.7 middle part of transverse leaf spring
It is fixed by fixing seat 6 in the middle part of leaf spring with vehicle frame, 7 both ends of transverse leaf spring are supported on the leaf spring end anchorage 5 of wheel hub column 1
On；The tilting arrangement of auxiliary spring 4, the fixed vehicle frame in one end, the other end act on leaf spring supporting plate 3, reduce vehicle height.
In conclusion 7 end of transverse leaf spring passes through leaf spring end anchorage 5 and plate in major-minor spring structure provided by the invention
Spring mounting base 8 connects, and is provided with auxiliary spring 4 on the vehicle frame, can reduce vehicle height by transverse leaf spring 7 and auxiliary spring 4, uses
Major-minor spring structure, occupancy suspension space are smaller than monolithic leaf spring occupancy suspension space, simple etc. with vehicle lightweight and structure
Advantage.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other implementations
Certain features rather than other feature included by example, but the combination of the feature of different embodiments means in the present invention
Within the scope of and form different embodiments.For example, in claims above, embodiment claimed
It is one of any can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen pair
The understanding of general background technology of the invention, and be not construed as recognizing or implying in any form that information composition has been this
The prior art well known to the technical staff of field.
Claims (10)
1. a kind of major-minor spring structure, which is characterized in that including：Wheel hub column and transverse leaf spring are provided on the wheel hub column
Flexible leaf spring mounting base, the transverse leaf spring centre are connect by fixing seat in the middle part of leaf spring with vehicle frame, the transverse plate
Spring end is connect by leaf spring end anchorage with leaf spring mounting base, is provided with auxiliary spring on the vehicle frame, and the auxiliary spring can be with
The leaf spring mounting base contact.
2. major-minor spring structure according to claim 1, which is characterized in that the auxiliary spring tilting action is installed in the leaf spring
On seat.
3. major-minor spring structure according to claim 2, which is characterized in that the angle of the auxiliary spring and the leaf spring mounting base
No more than 45 °.
4. major-minor spring structure according to claim 1, which is characterized in that the leaf spring mounting base includes bottom plate and main body,
The leaf spring end anchorage is connect with the bottom plate, is provided with inclined surface in the main body, and the auxiliary spring, which acts on, described to incline
On inclined-plane.
5. major-minor spring structure according to claim 1, which is characterized in that the leaf spring end anchorage passes through U bolt
It is fixed in leaf spring mounting base.
6. major-minor spring structure according to claim 5, which is characterized in that the leaf spring end leaf spring mounting base and the cross
It sets and is provided with nonmetallic cushion block between leaf spring.
7. major-minor spring structure according to claim 1, which is characterized in that the auxiliary spring is arranged on vehicle frame by bolt.
8. major-minor spring structure according to claim 1, which is characterized in that be respectively arranged with upper arm ball on the wheel hub column
Fraising and lower arm flexural pivot hole.
9. major-minor spring structure according to claim 8, which is characterized in that the leaf spring mounting base corresponds to the upper arm ball
Fraising setting.
10. a kind of suspension, which is characterized in that including major-minor spring structure as described in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664074.3A CN108909391B (en) | 2018-06-25 | 2018-06-25 | Main and auxiliary spring structure and suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664074.3A CN108909391B (en) | 2018-06-25 | 2018-06-25 | Main and auxiliary spring structure and suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108909391A true CN108909391A (en) | 2018-11-30 |
| CN108909391B CN108909391B (en) | 2021-03-12 |
Family
ID=64420767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810664074.3A Active CN108909391B (en) | 2018-06-25 | 2018-06-25 | Main and auxiliary spring structure and suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108909391B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450610A (en) * | 2019-08-21 | 2019-11-15 | 湖北车桥有限公司 | A kind of motor external hanging type axle assembly |
| CN112161012A (en) * | 2020-08-21 | 2021-01-01 | 东风汽车底盘系统有限公司 | Composite plate spring with hollow structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3157395A (en) * | 1961-12-07 | 1964-11-17 | Ford Motor Co | Vehicle suspension construction |
| JPH02102814A (en) * | 1988-10-11 | 1990-04-16 | Mazda Motor Corp | Stabilizer |
| CN201287599Y (en) * | 2008-09-26 | 2009-08-12 | 柳州五菱汽车工业有限公司 | Transverse band spring independent suspension steering bridge of automotive vehicle |
| DE102010031054A1 (en) * | 2010-07-07 | 2012-01-12 | Bayerische Motoren Werke Aktiengesellschaft | Dämpferbein-Achse of the single-jaw-type |
| CN203142333U (en) * | 2013-01-24 | 2013-08-21 | 中国第一汽车股份有限公司 | Rubber auxiliary spring composite rear suspension system |
| CN104002632A (en) * | 2014-06-10 | 2014-08-27 | 安徽江淮汽车股份有限公司 | Vehicle and plate spring suspension assembly thereof |
| CN203995534U (en) * | 2014-08-13 | 2014-12-10 | 辽宁曙光汽车集团股份有限公司 | The independent front suspension of horizontal non-metal leaf spring |
| CN106585312A (en) * | 2016-11-02 | 2017-04-26 | 北京宏瑞汽车科技股份有限公司 | Transverse plate spring type independent suspension structure |
| CN206141257U (en) * | 2016-10-31 | 2017-05-03 | 北京宏瑞汽车科技股份有限公司 | Independent suspended structure of transverse leaf spring formula |
-
2018
- 2018-06-25 CN CN201810664074.3A patent/CN108909391B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3157395A (en) * | 1961-12-07 | 1964-11-17 | Ford Motor Co | Vehicle suspension construction |
| JPH02102814A (en) * | 1988-10-11 | 1990-04-16 | Mazda Motor Corp | Stabilizer |
| CN201287599Y (en) * | 2008-09-26 | 2009-08-12 | 柳州五菱汽车工业有限公司 | Transverse band spring independent suspension steering bridge of automotive vehicle |
| DE102010031054A1 (en) * | 2010-07-07 | 2012-01-12 | Bayerische Motoren Werke Aktiengesellschaft | Dämpferbein-Achse of the single-jaw-type |
| CN203142333U (en) * | 2013-01-24 | 2013-08-21 | 中国第一汽车股份有限公司 | Rubber auxiliary spring composite rear suspension system |
| CN104002632A (en) * | 2014-06-10 | 2014-08-27 | 安徽江淮汽车股份有限公司 | Vehicle and plate spring suspension assembly thereof |
| CN203995534U (en) * | 2014-08-13 | 2014-12-10 | 辽宁曙光汽车集团股份有限公司 | The independent front suspension of horizontal non-metal leaf spring |
| CN206141257U (en) * | 2016-10-31 | 2017-05-03 | 北京宏瑞汽车科技股份有限公司 | Independent suspended structure of transverse leaf spring formula |
| CN106585312A (en) * | 2016-11-02 | 2017-04-26 | 北京宏瑞汽车科技股份有限公司 | Transverse plate spring type independent suspension structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450610A (en) * | 2019-08-21 | 2019-11-15 | 湖北车桥有限公司 | A kind of motor external hanging type axle assembly |
| CN112161012A (en) * | 2020-08-21 | 2021-01-01 | 东风汽车底盘系统有限公司 | Composite plate spring with hollow structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108909391B (en) | 2021-03-12 |
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