JPH03219128A - Silencer for laminated spring - Google Patents
Silencer for laminated springInfo
- Publication number
- JPH03219128A JPH03219128A JP1290590A JP1290590A JPH03219128A JP H03219128 A JPH03219128 A JP H03219128A JP 1290590 A JP1290590 A JP 1290590A JP 1290590 A JP1290590 A JP 1290590A JP H03219128 A JPH03219128 A JP H03219128A
- Authority
- JP
- Japan
- Prior art keywords
- silencer
- oil
- weight
- leaf spring
- powder
- 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
- 230000003584 silencer Effects 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 19
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 11
- 239000010974 bronze Substances 0.000 claims abstract description 11
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910020813 Sn-C Inorganic materials 0.000 claims abstract 2
- 229910018732 Sn—C Inorganic materials 0.000 claims abstract 2
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical group S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 5
- 229910020874 Sn-M Inorganic materials 0.000 claims 1
- 229910008890 Sn—M Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017518 Cu Zn Inorganic materials 0.000 description 1
- 229910017752 Cu-Zn Inorganic materials 0.000 description 1
- 229910017943 Cu—Zn Inorganic materials 0.000 description 1
- 229910020929 Sn-Sn Inorganic materials 0.000 description 1
- 229910008827 Sn—Sn Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Landscapes
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は車両用の車軸を懸架する重ね板ばねに関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a stacked leaf spring for suspending a vehicle axle.
更に詳しくは互いに重なり合う板ばねの間に介在され前
記板ばね同士のきしみ音の発生を防止する重ね板ばね用
サイレンサに関するものである。More specifically, the present invention relates to a silencer for stacked leaf springs that is interposed between overlapping leaf springs and prevents the occurrence of squeaking noise between the leaf springs.
［従来の技術］
この種の重ね板ばねでは、応力が作用したときに重ね板
ばねの端部が金属対金属の接触により、きしみ音が発生
し、かつ板ばねの端部に破損や折損等が生じやすい。こ
れらの問題点を解決するため、従来耐摩耗性のある樹脂
、例えば高密度のウレタン樹脂やＣｕ−Ｚｎ系のインゴ
ットにより形成されたサイレンサを板ばね間、特に板ば
ねの端部に介在させ、重ね板ばねにおける板ばねの端部
付近の摩擦抵抗を軽減させている（例えば実開昭６ｌ−
９６０２６）。[Prior Art] In this type of stacked leaf spring, when stress is applied, the ends of the stacked leaf spring make metal-to-metal contact, producing a squeaking sound, and the ends of the leaf spring may be damaged or broken. is likely to occur. In order to solve these problems, a silencer made of a conventional wear-resistant resin, such as a high-density urethane resin or a Cu-Zn ingot, is interposed between the leaf springs, especially at the end of the leaf spring. The frictional resistance near the end of the leaf spring in a stacked leaf spring is reduced (for example,
96026).
［発明が解決しようとする課題］
しかし、従来の材質のサイレンサは、摩擦抵抗を軽減で
きるものの、耐摩耗性及び消音性が十分でなく、更に改
善の余地があった。[Problems to be Solved by the Invention] However, although silencers made of conventional materials can reduce frictional resistance, they do not have sufficient wear resistance and noise damping properties, and there is still room for further improvement.
本発明の目的は、板ばね同士の摩擦抵抗を軽減でき、か
つ耐摩耗性及び消音性に優れ、しかも板ばねを損傷させ
ない重ね板ばね用サイレンサを提供することにある。An object of the present invention is to provide a silencer for stacked leaf springs that can reduce the frictional resistance between leaf springs, has excellent wear resistance and noise damping properties, and does not damage the leaf springs.
［課題を解決するための手段］
上記目的を達成するために、本発明の重ね板ばね用サイ
レンサは、潤滑用粉末が均一に分散した青銅系焼結含油
合金からなることを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the silencer for a stacked leaf spring of the present invention is characterized by being made of a bronze-based sintered oil-impregnated alloy in which lubricating powder is uniformly dispersed.
青銅系焼結含油合金は、第一に潤滑用粉末として炭素粉
末を用い、Ｓｎ５〜２０重量％とＣ１〜３重量％と残部
Ｃｕからなり、多孔率か１８〜２５容積％であって、そ
の含油率が９５％以上のＣｕ−Ｓｎ−−Ｃ系焼結含油合
金であることか好ましい。The bronze-based sintered oil-impregnated alloy first uses carbon powder as a lubricating powder, and is composed of 5 to 20% by weight of Sn, 1 to 3% by weight of C, and the balance Cu, and has a porosity of 18 to 25% by volume. A Cu-Sn--C based sintered oil-impregnated alloy having an oil content of 95% or more is preferred.
また第二に潤滑用粉末として二硫化モリブデン粉末を用
い、Ｓｎ５〜２０重量％とＭｏＳ２１〜３重量％と残部
Ｃｕからなり、多孔率が１８〜２５容積％であって、そ
の含油率が９５％以」二のＣｕ−Ｓｎ−Ｓｎ−−系焼結
含油合金であることが好ましい。Secondly, molybdenum disulfide powder is used as a lubricating powder, consisting of 5 to 20% by weight of Sn, 21 to 3% by weight of MoS, and the balance Cu, with a porosity of 18 to 25% by volume and an oil content of 95%. The following Cu-Sn-Sn-based sintered oil-impregnated alloy is preferred.
第−及び第二の合金ともＳｎの含有量は、５重量％未満
にするとＣｕ−３ｎ系合金の強度が低下し、２０重量％
を越えるとコスト的に不利になるだけでなく、硬いε相
が発生するため、上記範囲に選定される。またＣ又はＭ
ｏ Ｓ ２の含有量は、１重量％未満にすると固体潤
滑剤としての効果か不十分となり、３重量％を越えると
油に汚れが生じるため、上記範囲に選定される。更に多
孔率は、１８容積％未満になると含油が不十分となり、
２５容積％を越えると合金の強度か低下するため、上記
範囲に選定される。In both the first and second alloys, if the Sn content is less than 5% by weight, the strength of the Cu-3n alloy decreases, and if the Sn content is less than 5% by weight,
If it exceeds this range, not only will it be disadvantageous in terms of cost, but also a hard ε phase will occur, so the above range is selected. Also C or M
The content of S2 is selected within the above range because if it is less than 1% by weight, the effect as a solid lubricant will be insufficient, and if it exceeds 3% by weight, the oil will become dirty. Furthermore, if the porosity is less than 18% by volume, oil impregnation will be insufficient,
If it exceeds 25% by volume, the strength of the alloy will decrease, so it is selected within the above range.
［作 用コ
板ばねと板ばねの金属同士が圧接するとその接触圧力で
サイレンサの接触面に含浸した油の自己給油作用が働く
、また母材であるＣｕとＳｎに含ませたＣ又はＭｏ Ｓ
２の潤滑用粉末により、摩擦抵抗力が低減し、耐摩耗性
及び消音性が向上する。[Function] When the metals of the leaf springs come into contact with each other, the contact pressure causes a self-lubricating effect of the oil impregnated on the contact surface of the silencer.
The lubricating powder of No. 2 reduces frictional resistance and improves wear resistance and noise damping properties.
［実施例］
以下、本発明の実施例を図面に基づいて詳しく説明する
。[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図に示すように、この例では３枚の板ばね１１．１
２及び１３か重ねられ、重ね板ばね１０が構成される。As shown in FIG. 1, in this example three leaf springs 11.1
2 and 13 are overlapped to form a stacked leaf spring 10.
これらの板ばね１１の端部と板ばね１２の間にはサイレ
ンサ１５が介在し、板ばね１２の端部と板ばね１３の間
にはサイレンサ１６が介在する。A silencer 15 is interposed between the ends of the leaf springs 11 and the leaf springs 12, and a silencer 16 is interposed between the ends of the leaf springs 12 and the leaf springs 13.
第２図に詳しく示すように、サイレンサ１５は粉末冶金
で板状に作られた青銅系焼結含油合金であって、板ばね
１１の端部上面に蝋付けにより固着される。サイレンサ
１６はサイレンサ１５と同じ材質であって、板ばね１２
の端部上面に蝋付けにより固着される。As shown in detail in FIG. 2, the silencer 15 is a bronze-based sintered oil-impregnated alloy made into a plate shape using powder metallurgy, and is fixed to the upper surface of the end of the leaf spring 11 by brazing. The silencer 16 is made of the same material as the silencer 15, and the leaf spring 12
It is fixed to the top surface of the end by brazing.
サイレンサ１５及び１６は、この例では５ｎ１０重量％
とＣ３重量％と残部Ｃｕからなり、多孔率が約２０容積
％である焼結体にモーピル油を含浸してその含油率を９
５％以上にしたＣｕ５ｎ−Ｃ系焼結含油合金である。第
２図において、１７はこの合金中に均一に分散した炭素
粉末からなる潤滑用粉末を示す。Silencers 15 and 16 are 5n10% by weight in this example.
A sintered body consisting of C3 wt% and the balance Cu and having a porosity of about 20% by volume was impregnated with Mopil oil to reduce the oil content to 9.
It is a Cu5n-C based sintered oil-impregnated alloy containing 5% or more. In FIG. 2, reference numeral 17 indicates a lubricating powder made of carbon powder uniformly dispersed in this alloy.
このような構成の重ね板ばね１ｏは、板ばね１１〜１３
がサイレンサ１５及び１６を介して極めて大きな力で互
いに圧接し合う。車両の走行中に応力が作用し、板ばね
１１〜１３がそれぞれ摩擦しながら長手方向に移動を繰
返すと、サイレンサ１５及び１６の各母材に含まれた炭
素粉末が潤滑用粉末１７として作用し、板ばね接触面の
摩擦力を低下させる。またサイレンサ１５及び１６の板
ばね接触面には含浸した油の膜１８が生じ、これにより
板ばね接触面の摩擦力を更に低下させる。The stacked leaf spring 1o having such a configuration includes the leaf springs 11 to 13.
are pressed against each other with an extremely large force via the silencers 15 and 16. When stress is applied while the vehicle is running and the leaf springs 11 to 13 repeatedly move in the longitudinal direction while frictionally moving, the carbon powder contained in the base materials of the silencers 15 and 16 acts as the lubricating powder 17. , reduce the frictional force on the contact surface of the leaf spring. Further, a film 18 of impregnated oil is formed on the leaf spring contact surfaces of the silencers 15 and 16, thereby further reducing the frictional force on the leaf spring contact surfaces.
なお、上記例で示した焼結合金の各成分の配合は一例で
あって、本発明はこれに限定されるものではない。Note that the composition of each component of the sintered alloy shown in the above example is an example, and the present invention is not limited thereto.
また、青銅系焼結含油合金の潤滑用粉末として炭素粉末
を用いたが、本発明はこれに限定されるものではなく、
他の潤滑用粉末、例えば二硫化モリブデン（ＭｏＳ２）
を炭素と同じ割合で添加してもよい。Further, although carbon powder was used as the lubricating powder for the bronze-based sintered oil-impregnated alloy, the present invention is not limited to this.
Other lubricating powders, such as molybdenum disulfide (MoS2)
may be added in the same proportion as carbon.
更に、上記板状のサイレンサには、摩擦力を一層低減さ
せるために上面に適宜凹凸を設けてもよい。Further, the plate-shaped silencer may be provided with appropriate irregularities on its upper surface in order to further reduce the frictional force.
［発明の効果コ
以上述べたように、本発明によれば、青銅系焼結含油合
金をサイレンサに適用することにより、耐摩耗性、耐摩
滅性が高くなり、かつ自己給油作用により接触面の摩擦
力が低減し、きしみ音か生しなくなる。[Effects of the Invention] As described above, according to the present invention, by applying a bronze-based sintered oil-impregnated alloy to the silencer, wear resistance and abrasion resistance are increased, and the contact surface is improved by self-lubricating action. Frictional force is reduced and squeaks are no longer produced.
また、銅と錫からなる母材中に潤滑用粉末として炭素又
は二硫化モリブデンの粉末を均一に分散させることによ
り、より一層板ばね同士の摩擦抵抗を軽減でき、かつ耐
摩耗性及び消音性に優れ、しかも板ばねを損傷させるこ
とかなくなる。In addition, by uniformly dispersing carbon or molybdenum disulfide powder as a lubricating powder in the base material made of copper and tin, it is possible to further reduce the frictional resistance between the leaf springs, and improve wear resistance and sound deadening properties. Excellent, and will not damage the leaf spring.
特に、水分を含んだ砂、土、塵埃等が板ばねとサイレン
サの間に食込んむ極限状態においても板ばね接触面での
焼付きの恐れがなく、安全性と信頼性の高い優れたサイ
レンサか得られる。In particular, there is no risk of seizing on the contact surface of the leaf spring, even in extreme conditions where moisture-containing sand, dirt, dust, etc. get stuck between the leaf spring and the silencer, making it a highly safe and reliable silencer. or can be obtained.
第１図は本発明実施例サイレンサを含む重ね板ばねの要
部正面図。
第２図はそのＡ部拡大断面図。
１０：重ね板ばね、
１１．１２，１３：板ばね、
１５．１６：サイレンサ、
１７：潤滑用粉末。FIG. 1 is a front view of essential parts of a stacked leaf spring including a silencer according to an embodiment of the present invention. FIG. 2 is an enlarged sectional view of section A. 10: Layered leaf spring, 11.12, 13: Leaf spring, 15.16: Silencer, 17: Lubricating powder.
Claims (1)
同士のきしみ音の発生を防止する重ね板ばね用サイレン
サにおいて、 潤滑用粉末が均一に分散した青銅系焼結含油合金からな
ることを特徴とする重ね板ばね用サイレンサ。 ２）潤滑用粉末は炭素粉末であって、青銅系焼結含油合
金はＳｎ５〜２０重量％とＣ１〜３重量％と残部Ｃｕか
らなり、多孔率が１８〜２５容積％であって、その含油
率が９５％以上のＣｕ−Ｓｎ−Ｃ系焼結含油合金である
請求項１記載の重ね板ばね用サイレンサ。 ３）潤滑用粉末は二硫化モリブデン粉末であって、青銅
系焼結含油合金はＳｎ５〜２０重量％とＭｏＳ＿２１〜
３重量％と残部Ｃｕからなり、多孔率が１８〜２５容積
％であって、その含油率が９５％以上のＣｕ−Ｓｎ−Ｍ
ｏＳ＿２系焼結含油合金である請求項１記載の重ね板ば
ね用サイレンサ。[Claims] 1) A silencer for a stacked leaf spring that is interposed between overlapping leaf springs and prevents the occurrence of squeaking noise between the leaf springs, comprising: a bronze-based sintered oil-impregnated alloy in which lubricating powder is uniformly dispersed; A silencer for stacked leaf springs, characterized by comprising: 2) The lubricating powder is carbon powder, and the bronze-based sintered oil-impregnated alloy is composed of 5 to 20% by weight of Sn, 1 to 3% by weight of C, and the balance Cu, and has a porosity of 18 to 25% by volume, and its oil-impregnated The silencer for a stacked leaf spring according to claim 1, wherein the silencer is a Cu-Sn-C based sintered oil-impregnated alloy having a ratio of 95% or more. 3) The lubricating powder is molybdenum disulfide powder, and the bronze-based sintered oil-impregnated alloy contains 5 to 20% by weight of Sn and MoS_21 to
Cu-Sn-M consists of 3% by weight and the balance Cu, has a porosity of 18 to 25% by volume, and has an oil content of 95% or more
The silencer for a stacked leaf spring according to claim 1, which is an oS_2-based sintered oil-impregnated alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290590A JPH03219128A (en) | 1990-01-23 | 1990-01-23 | Silencer for laminated spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290590A JPH03219128A (en) | 1990-01-23 | 1990-01-23 | Silencer for laminated spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03219128A true JPH03219128A (en) | 1991-09-26 |
Family
ID=11818381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1290590A Pending JPH03219128A (en) | 1990-01-23 | 1990-01-23 | Silencer for laminated spring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03219128A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020009876A (en) * | 2000-07-27 | 2002-02-02 | 구자홍 | Apparatus for protecting fretting corrosion of plate spring |
| WO2012014635A1 (en) * | 2010-07-26 | 2012-02-02 | 日本発條株式会社 | Silencer for a multi-leaf spring |
-
1990
- 1990-01-23 JP JP1290590A patent/JPH03219128A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020009876A (en) * | 2000-07-27 | 2002-02-02 | 구자홍 | Apparatus for protecting fretting corrosion of plate spring |
| WO2012014635A1 (en) * | 2010-07-26 | 2012-02-02 | 日本発條株式会社 | Silencer for a multi-leaf spring |
| US9285004B2 (en) | 2010-07-26 | 2016-03-15 | Nhk Spring Co., Ltd. | Silencer for a multi-leaf spring |
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