CN101865234A - Torsion-bar spring - Google Patents
Torsion-bar spring Download PDFInfo
- Publication number
- CN101865234A CN101865234A CN201010105742A CN201010105742A CN101865234A CN 101865234 A CN101865234 A CN 101865234A CN 201010105742 A CN201010105742 A CN 201010105742A CN 201010105742 A CN201010105742 A CN 201010105742A CN 101865234 A CN101865234 A CN 101865234A
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- China
- Prior art keywords
- spring
- bar spring
- titanium alloy
- spring steel
- steel body
- 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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- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a torsion-bar spring. The torsion-bar spring comprises a spring steel body and a titanium alloy layer which is bonded outside the spring steel body and is in tight press fit with the spring steel body. Because the titanium alloy has high specific strength and low elastic modulus, the torsion-bar spring has the characteristics of high strength, elasticity and plasticity, and high anti-fatigue and anti-corrosion performance.
Description
Technical field
The present invention relates to a kind of torsion bar spring, relate in particular to the torsion bar spring that is used for automobile suspension system.
Background technique
Automotive suspension is an important device system in the automobile, and wherein wishbone-type independent suspension is one of Independent Suspension form common in the existing all kinds of automobiles.This wishbone-type independent suspension adopts torsion bar spring as elastic element, torsion bar spring is generally used circular torsion bar, it is elongated rod shape, and spline, hexagon etc. can be processed in two ends, are fixed on the wheel by control arm so that an end is fixed on vehicle frame two the other ends.During automobilism, wheel is moved up and down by the concavo-convex influence in ground, and control arm also can rise thereupon or descend.Control arm rises when wheel makes progress, and makes torsion bar be forced to torsional deflection, absorbs impact energy.When impact force weakened, the natural reducing capacity of bar can return to its original position rapidly, makes wheel get back to ground, avoids vehicle frame to be jolted.In order to ensure that spring can work reliably, it has the higher ultimate strength and yield limit except that satisfying, and also must have higher limit of elasticity, fatigue limit, impact toughness, plasticity.Present spring generally adopts Steel Alloy, makes such as carbon spring steel, low Manganese Spring Steel, silicon-manganese spring steel etc.But shortcomings such as corrosion resistance is poor, fatigue strength is low, poor toughness that the steel spring steel exists.
Summary of the invention
Technical problem to be solved by this invention just provides that a kind of corrosion resistance is good, fatigue strength is high, the torsion bar spring of good toughness.
For solving the problems of the technologies described above, the present invention adopts following technological scheme: a kind of torsion bar spring is characterized in that: described torsion bar spring comprises the spring steel body and is combined in the titanium alloy layer of spring steel body exterior.
As preferably, the thickness range of described titanium alloy layer is 0.2-1cm.
As preferably, described titanium alloy layer is closely pressed together on the described spring steel body.
The present invention has adopted technique scheme and since titanium alloy have higher ratio by force, lower Young's modulus, so this torsion bar spring has high strength, high elasticity, high-plasticity characteristics, and antifatigue and corrosion resistance are good.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an axial cross section structural representation of the present invention.
Embodiment
As depicted in figs. 1 and 2, be the embodiment of a kind of torsion bar spring of the present invention, described torsion bar spring comprises the titanium alloy layer 2 of spring steel body 1 and spring steel body exterior.The spring steel of wherein said spring steel body 1 is a silicon-manganese spring steel.The titanium alloy of described titanium alloy layer 2 is an alpha+beta titanium alloys.And the thickness range of described titanium alloy layer is 0.2-1cm.Described titanium alloy layer 2 is closely pressed together on the described spring steel body 1.Perhaps titanium alloy layer 2 also can spray and be combined on the spring steel body 1.
Claims (3)
1. torsion bar spring, it is characterized in that: described torsion bar spring comprises spring steel body (1) and is combined in the titanium alloy layer (2) of spring steel body exterior.
2. torsion bar spring according to claim 1 is characterized in that: the thickness range of described titanium alloy layer (2) is 0.2-1cm.
3. torsion bar spring according to claim 1 is characterized in that: described titanium alloy layer (2) is closely pressed together on the described spring steel body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105742A CN101865234A (en) | 2010-01-28 | 2010-01-28 | Torsion-bar spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105742A CN101865234A (en) | 2010-01-28 | 2010-01-28 | Torsion-bar spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101865234A true CN101865234A (en) | 2010-10-20 |
Family
ID=42957094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010105742A Pending CN101865234A (en) | 2010-01-28 | 2010-01-28 | Torsion-bar spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865234A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012097855A1 (en) * | 2011-01-21 | 2012-07-26 | Audi Ag | Active actuator for a motor vehicle chassis |
| WO2017200462A1 (en) * | 2016-05-17 | 2017-11-23 | BAE Systems Hägglunds Aktiebolag | Suspension arrangement for a tracked vehicle comprising parts of different modulus of elasticity |
-
2010
- 2010-01-28 CN CN201010105742A patent/CN101865234A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012097855A1 (en) * | 2011-01-21 | 2012-07-26 | Audi Ag | Active actuator for a motor vehicle chassis |
| WO2017200462A1 (en) * | 2016-05-17 | 2017-11-23 | BAE Systems Hägglunds Aktiebolag | Suspension arrangement for a tracked vehicle comprising parts of different modulus of elasticity |
| US11034399B2 (en) | 2016-05-17 | 2021-06-15 | BAE Systems Hägglunds Aktiebolag | Suspension arrangement for a tracked vehicle comprising parts of different modulus of elasticity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101020 |