CN106114109A - A kind of leaf springs of car is with wear-resisting auxiliary spring carrier structure - Google Patents
A kind of leaf springs of car is with wear-resisting auxiliary spring carrier structure Download PDFInfo
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- CN106114109A CN106114109A CN201610768530.XA CN201610768530A CN106114109A CN 106114109 A CN106114109 A CN 106114109A CN 201610768530 A CN201610768530 A CN 201610768530A CN 106114109 A CN106114109 A CN 106114109A
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- Prior art keywords
- wear
- resistant block
- auxiliary spring
- spring bracket
- car
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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
- B60G11/02—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention provides a kind of leaf springs of car with wear-resisting auxiliary spring carrier structure, belongs to the technical field of structure design of automobile.The leaf springs of car of the present invention is with wear-resisting auxiliary spring carrier structure, including hex-head nut, elastic washer, auxiliary spring bracket body, wear-resistant block retainer, wear-resistant block and dormant bolt.Described auxiliary spring bracket body is used for assisting support car body weight, and bottom wear-resistant block can be effectively improved auxiliary spring bracket overall wear resistance, increases service life, reduces use cost, and is easy to later period maintenance replacing.
Description
Technical field
The present invention relates to the technical field of structure design of automobile, it is more particularly related to a kind of leaf springs of car is used
Wear-resisting auxiliary spring carrier structure.
Background technology
In the prior art, plate spring suspension brackets auxiliary spring bracket generally uses cast-iron structure, as it is shown in figure 1, auxiliary spring bracket passes through
Rivet rivets with longitudinal beam lateral surface；During back axle motion, auxiliary spring front and back ends upper surface position contacts with forward and backward auxiliary spring bracket and makes
Rear axle spring carried mass is partly delivered to auxiliary spring.Specifically, described cast iron materials is generally QT450～500, and its hardness is less than plate
Hardness (HRC40～47) after spring material heat treatment, thus cause in use auxiliary spring bracket easily to wear and tear；Additionally, due to
Using auxiliary spring bracket and longitudinal beam is riveting form, causes the later stage to be difficult to change, and increases maintenance maintenance cost and uses into
This.In order to solve the wear problem of auxiliary spring bracket, prior art provides two kinds of structures as shown in figures 2-3, but both is tied
The problem that structure not can solve auxiliary spring bracket premature abrasion.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides a kind of wear-resisting auxiliary spring torr of leaf springs of car
Shelf structure.
A kind of leaf springs of car with wear-resisting auxiliary spring carrier structure, including hex-head nut, elastic washer, auxiliary spring bracket body,
Wear-resistant block retainer, wear-resistant block and dormant bolt；It is characterized in that: described wear-resistant block retainer has upper and lower surface,
The both sides of described upper surface are provided with upper left flange and upper right flange, and the lower surface rear and front end of described wear-resistant block retainer is arranged
There are outside lower flange and interior lower flange；The upper surface of described wear-resistant block, lateral surface and medial surface respectively with described wear-resistant block retainer
Lower surface, outside lower flange contacts with interior lower flange；The upper surface of described wear-resistant block retainer, upper left flange and upper right flange divide
Do not contact with lower surface, left surface and the right flank of auxiliary spring bracket body；Described wear-resistant block, wear-resistant block retainer and auxiliary spring bracket
Body is provided with counterbore, and described dormant bolt sequentially passes through described wear-resistant block, wear-resistant block retainer and auxiliary spring bracket body
Counterbore is also tightened together by urgent moment with hex-head nut；Wherein, the taper bolt head of described dormant bolt is arranged on
In the inferior pyramidal counterbore of described wear-resistant block, described elastic washer is fastened on described auxiliary spring bracket originally by described hex-head nut
On the upper surface of body.
Wherein, described wear-resistant block has the hardness suitable with leaf spring band steel.
Wherein, described wear-resistant block uses leaf spring flat bar stock thermo forming, and the curvature of described wear-resistant block upper surface
Radius is slightly less than the radius of curvature of described wear-resistant block retainer lower surface.
The leaf springs of car of the present invention compared with prior art has the advantages that with wear-resisting auxiliary spring carrier structure
In the auxiliary spring bracket of the present invention, wear-resistant block uses the leaf spring flat bar stock being different from auxiliary spring bracket body, such that it is able to
Significantly reduce the wear-resistant block rate of wear, improve service life, reduce use cost, and be easy to later period maintenance replacing.
Accompanying drawing explanation
Fig. 1 is the structural representation of plate spring suspension brackets auxiliary spring bracket of the prior art；
Fig. 2 is the schematic diagram of the first structure solving the abrasion of auxiliary spring bracket in prior art；
Fig. 3 is the schematic diagram of the second structure solving the abrasion of auxiliary spring bracket in prior art；
Fig. 4 is the leaf spring structural representation with wear-resisting auxiliary spring carrier structure of embodiment 1.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, described leaf springs of car is described further with wear-resisting auxiliary spring carrier structure.
Embodiment 1
The leaf springs of car of the present embodiment is with wear-resisting auxiliary spring carrier structure, including hex-head nut 1, elastic washer 2, auxiliary spring torr
Frame body 3, wear-resistant block retainer 4, wear-resistant block 5 and dormant bolt 6.Described wear-resistant block retainer 4 has upper surface 4a and following table
Face 4b, the both sides of described upper surface 4a are provided with upper left flange 4c and upper right flange 4d.The lower surface of described wear-resistant block retainer 4
Rear and front end is provided with outside lower flange 4f and interior lower flange 4g；The upper surface 5b of described wear-resistant block, lateral surface 5f and medial surface 5g
Contact with the lower surface 4b of described wear-resistant block retainer 4, outside lower flange 4f and interior lower flange 4g respectively；Described wear-resistant block retainer
Upper surface 4a, upper left flange 4c and the upper right flange 4d of 4 respectively with lower surface 3a, left surface 3c and the right side of auxiliary spring bracket body 3
Side 3d contacts；Described wear-resistant block 5, wear-resistant block retainer 4 are provided with counterbore 5e, 4e, 3e respectively with auxiliary spring bracket body 3,
Described dormant bolt 6 sequentially passes through described wear-resistant block 5, wear-resistant block retainer 4 and the counterbore of auxiliary spring bracket body 3 and turret head
Nut 1 is tightened together by urgent moment；The taper bolt head 6e of described dormant bolt 6 is arranged on the lower cone of described wear-resistant block
In shape counterbore, and ensureing that bolt head 6e does not expose the lower surface 5a of wear-resistant block 5, described elastic washer 2 is by described turret head spiral shell
Female 1 is fastened on the upper surface 3b of described auxiliary spring bracket body 3.
Described auxiliary spring bracket body uses rivet interlacement with longitudinal beam, carries complete vehicle weight；And under auxiliary spring bracket body
Portion arranges a single wear-resistant block, is additionally provided with a steel plate punched molding retainer between auxiliary spring bracket body and wear-resistant block,
There is upper and lower turnup structure, respectively with auxiliary spring bracket body and wear-resistant block clamping, limit wear-resistant block along centre bore axis direction
Rotational freedom, last three is cascaded from bottom to top by dormant bolt, elastic washer and hex-head nut and is locked
Nut.Auxiliary spring active force is transferred to auxiliary spring bracket body by wear-resistant block, wear-resistant block retainer.
In the present embodiment, described leaf spring band steel has a following composition: the C of 0.55～0.95wt%, below 0.5wt%
The Cr of the Cu of the Mn of Si, 2.8～7.5wt%, 0.55～2.05wt%, 1.2～2.5wt%, the Al of below 0.05wt%,
The Ti of the V of the Nb of the N of below 0.10wt%, 0.01～0.10wt%, 0.01～0.10wt%, 0.01～0.10wt%, surplus
For Fe and inevitable impurity.Described leaf spring band steel is incubated 0.5～1.0 at casting post-heating to 950～1050 DEG C
Hour, then water-cooled, and then form the organizational structure of quenched martensite；Finally, it is incubated 1.5～3.5 hours at 580～630 DEG C,
The mean diameter making the precipitate of Mn and Cu is 0.10～0.25 μm, obtains being formed by retained austenite and tempered martensite
Organizational structure, and the area of described retained austenite is 15～25%.The leaf spring band steel of the present invention has more than 650MPa's
Intensity, and HRC hardness can reach 45～50, has the wearability of excellence.
In the prior art, auxiliary spring bracket is single structure and material, is in compared with the hardness after spring steel heat treatment
Substantially inferior position, causes auxiliary spring bracket premature abrasion, and owing to it rivets with longitudinal beam, is difficult to change, causes after serious wear
Maintenance cost is high or is difficult to safeguard.Auxiliary spring carrier structure described in the present embodiment then can not change former auxiliary spring bracket body base
By adding a retainer and wear-resistant block on plinth, the wear-resistant block using above-mentioned leaf spring band steel to make after heat treatment can get and plate
The hardness that spring is suitable, improves its wearability, increases the whole service life of auxiliary spring bracket, and due to wear-resistant block and auxiliary spring bracket
Body is that bolt connects, and also fast changeable after abrasion reduces working service cost.Wear-resistant block cone shaped countersink and dormant bolt knot
Even if it is also ensured that its reliable connectivity after structure can allow the abrasion that bolt head is bigger, even if connecting bolt lost efficacy also pair
Dumb iron body is played a supporting role, and can reserve the time changing wear-resistant block.The plate spring suspension brackets auxiliary spring carrier structure of the present embodiment
Advantage is whole by adding retainer and abrasion-resistant block structure lifting auxiliary spring bracket on the premise of being not change former auxiliary spring bracket body
Body service life, different-thickness additionally can be used to finely tune auxiliary spring, can be widely used for early stage design or after market repacking, promote fortune
Defeated industry economic benefit.
For the ordinary skill in the art, specific embodiment simply combines accompanying drawing this patent has been carried out example
Property describe, it is clear that this patent implements and is not subject to the restrictions described above, as long as have employed this patent method design and skill
The improvement of the various unsubstantialities that art scheme is carried out, or the most improved design by this patent and technical scheme directly apply to it
Its occasion, all within the protection domain of this patent.
Claims (3)
1. leaf springs of car is with a wear-resisting auxiliary spring carrier structure, including hex-head nut, elastic washer, auxiliary spring bracket body, resistance to
Abrading block retainer, wear-resistant block and dormant bolt；It is characterized in that: described wear-resistant block retainer has upper and lower surface, institute
The both sides stating upper surface are provided with upper left flange and upper right flange, and the lower surface rear and front end of described wear-resistant block retainer is provided with
Outside lower flange and interior lower flange；The upper surface of described wear-resistant block, lateral surface and medial surface respectively with described wear-resistant block retainer
Lower surface, outside lower flange contact with interior lower flange；The upper surface of described wear-resistant block retainer, upper left flange and upper right flange are respectively
Contact with lower surface, left surface and the right flank of auxiliary spring bracket body；Described wear-resistant block, wear-resistant block retainer are with auxiliary spring bracket originally
Body is provided with counterbore, and described dormant bolt sequentially passes through described wear-resistant block, wear-resistant block retainer sinks with auxiliary spring bracket body
Kong Bingyu hex-head nut is tightened together by urgent moment；Wherein, the taper bolt head of described dormant bolt is arranged on institute
Stating in the inferior pyramidal counterbore of wear-resistant block, described elastic washer is fastened on described auxiliary spring bracket body by described hex-head nut
On upper surface.
Leaf springs of car the most according to claim 1 is with wear-resisting auxiliary spring carrier structure, it is characterised in that: described wear-resistant block has
The hardness suitable with leaf spring band steel.
Leaf springs of car the most according to claim 1 is with wear-resisting auxiliary spring carrier structure, it is characterised in that: described wear-resistant block uses
Leaf spring flat bar stock thermo forming, and the radius of curvature of described wear-resistant block upper surface is slightly less than under described wear-resistant block retainer
The radius of curvature on surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768530.XA CN106114109B (en) | 2016-08-30 | 2016-08-30 | A kind of wear-resisting auxiliary spring carrier structure of leaf springs of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768530.XA CN106114109B (en) | 2016-08-30 | 2016-08-30 | A kind of wear-resisting auxiliary spring carrier structure of leaf springs of car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106114109A true CN106114109A (en) | 2016-11-16 |
| CN106114109B CN106114109B (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610768530.XA Active CN106114109B (en) | 2016-08-30 | 2016-08-30 | A kind of wear-resisting auxiliary spring carrier structure of leaf springs of car |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09109639A (en) * | 1995-10-18 | 1997-04-28 | Nissan Diesel Motor Co Ltd | Suspension device of vehicle |
| CN201300681Y (en) * | 2008-10-17 | 2009-09-02 | 奇瑞汽车股份有限公司 | Auxiliary-spring shackle |
| CN202573697U (en) * | 2012-03-29 | 2012-12-05 | 三一重工股份有限公司 | Plate spring seat and engineering machinery with same |
| CN203358252U (en) * | 2013-06-14 | 2013-12-25 | 北汽福田汽车股份有限公司 | Split auxiliary spring bracket assembly |
| CN205951650U (en) * | 2016-08-30 | 2017-02-15 | 阿尔特汽车技术股份有限公司 | Automobile leaf spring is with wear -resisting auxiliary spring carrier structure |
-
2016
- 2016-08-30 CN CN201610768530.XA patent/CN106114109B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09109639A (en) * | 1995-10-18 | 1997-04-28 | Nissan Diesel Motor Co Ltd | Suspension device of vehicle |
| CN201300681Y (en) * | 2008-10-17 | 2009-09-02 | 奇瑞汽车股份有限公司 | Auxiliary-spring shackle |
| CN202573697U (en) * | 2012-03-29 | 2012-12-05 | 三一重工股份有限公司 | Plate spring seat and engineering machinery with same |
| CN203358252U (en) * | 2013-06-14 | 2013-12-25 | 北汽福田汽车股份有限公司 | Split auxiliary spring bracket assembly |
| CN205951650U (en) * | 2016-08-30 | 2017-02-15 | 阿尔特汽车技术股份有限公司 | Automobile leaf spring is with wear -resisting auxiliary spring carrier structure |
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| Publication number | Publication date |
|---|---|
| CN106114109B (en) | 2019-04-30 |
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