JPH038700B2 - - Google Patents
Info
- Publication number
- JPH038700B2 JPH038700B2 JP5141583A JP5141583A JPH038700B2 JP H038700 B2 JPH038700 B2 JP H038700B2 JP 5141583 A JP5141583 A JP 5141583A JP 5141583 A JP5141583 A JP 5141583A JP H038700 B2 JPH038700 B2 JP H038700B2
- Authority
- JP
- Japan
- Prior art keywords
- piston ring
- arm
- piston
- abutment
- swing arm
- 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.)
- Expired
Links
- 238000010998 test method Methods 0.000 claims description 2
- 238000009661 fatigue test Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013142 basic testing Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【発明の詳細な説明】
ピストンリングの材料を決定する為に、多くの
基礎的試験が行なわれているが、ピストンリング
の強度を測定する方法としては一般的に疲労試験
が行なわれ種々の方法がある。しかしながら、ピ
ストンリングに対する疲労試験としては曲げ疲労
試験のみであつた。しかしエンジン作動中にピス
トンリングにかかる応力は単に曲げ方向のみでは
無い。ピストンリングは、ピストンのリング溝に
セツトされるがそのクリアランスの分だけエンジ
ン作動中に捩りが生じる。それにもかかわらず、
基礎的試験には捩りに対する疲労試験が無い為、
曲げ疲労強度は充分なのにピストンリングの折
損、その結果としてエンジン故障を招く事があ
る。本発明は以上の点を考慮し、捩りに対する疲
労試験にも優れたピストンリング材料を決定する
為の試験方法を提供せんとするものである。[Detailed Description of the Invention] Many basic tests have been conducted to determine the material of piston rings, but fatigue tests are generally used to measure the strength of piston rings, and various methods are used. There is. However, the only fatigue test for piston rings was a bending fatigue test. However, the stress applied to piston rings during engine operation is not only in the bending direction. The piston ring is set in the ring groove of the piston, but the clearance causes the piston ring to twist during engine operation. Nevertheless,
Since there is no fatigue test for torsion in the basic test,
Although the bending fatigue strength is sufficient, the piston ring may break, resulting in engine failure. The present invention takes the above points into consideration and aims to provide a test method for determining piston ring materials that are also excellent in torsional fatigue tests.
以下、本発明を添付図面に沿つて詳細に説明す
る。 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
ピストンリング１の片側の合口部近傍を揺動ア
ーム２の側面２１にセツトし、カバー３を当てた
上をボルト４で固定する。揺動アーム側面２１
と、固定アーム側面５１とを同一平面上に位置さ
せ、固定アームを移動させて、ピストンリング１
の合口部のクリアランスが、セツトギヤツプＣの
位置になるよう調整したのち、揺動アーム２にセ
ツトしたのと反対側のピストンリング１の合口部
近傍を固定アーム５の側面５１にセツトし、カバ
ー３′とボルト４′で固定する。この時、ピストン
リング１の合口は揺動アーム２と固定アーム５の
中間に位置するようにする。 The vicinity of the abutment on one side of the piston ring 1 is set on the side surface 21 of the swing arm 2, and the cover 3 is attached and the top is fixed with bolts 4. Swing arm side 21
and the fixed arm side surface 51 are positioned on the same plane, and the fixed arm is moved to remove the piston ring 1.
After adjusting the clearance of the abutment part of the piston ring 1 to the position of the set gap C, set the vicinity of the abutment part of the piston ring 1 on the side opposite to the one set in the swing arm 2 to the side surface 51 of the fixed arm 5, and then attach the cover 3 to the side face 51 of the fixed arm 5. ' and bolt 4'. At this time, the abutment of the piston ring 1 is positioned between the swing arm 2 and the fixed arm 5.
こうしてピストンリング１をリング溝にセツト
した状態と同様のセツトギヤツプにしておいて、
揺動アーム２をツイスト方向（←→方向）に振動さ
せる事により捩りに対するリング強度を測定す
る。 In this way, the piston ring 1 is set in the same set gap as in the ring groove,
The ring strength against torsion is measured by vibrating the swing arm 2 in the twist direction (←→ direction).
揺動アーム２のツイスト量も、ピストンリング
１に加えられる応力、揺動サイクルの速さもかな
りの幅で調節できる様にする。こうする事によつ
て、何段階かの応力時、速度時に於ける疲労強度
を測定する事ができる。尚、この装置は、予定の
サイクル終了時、又は検査の対象であるピストン
リングが折損した時、自動的に停止するよう公知
の方法によつて設定されている。 The amount of twist of the swing arm 2, the stress applied to the piston ring 1, and the speed of the swing cycle can be adjusted within a considerable range. By doing this, it is possible to measure fatigue strength at several levels of stress and speed. This device is set by a known method to automatically stop at the end of a scheduled cycle or when the piston ring to be inspected breaks.
以上述べた如く、この方法を用いる事により捩
りに対する強度に優れたピストンリング材料を決
定する事ができ、その結果エンジン故障の原因と
なるピストンリング折損の虞れを著しく減少せし
めたピストンリングを提供する事ができる。 As described above, by using this method, it is possible to determine a piston ring material that has excellent strength against torsion, and as a result, it is possible to provide a piston ring that significantly reduces the risk of piston ring breakage, which can cause engine failure. I can do that.
第１図は本発明に使用する装置のピストンリン
グセツト部の上面図である。第２図は同正面図で
ある。
符号の説明、１……ピストンリング、２……揺
動アーム、２１……揺動アーム側面部、３，３′
……カバー、４，４′……ボルト、５……固定ア
ーム、５１……固定アーム側面部。
FIG. 1 is a top view of the piston ring set portion of the device used in the present invention. FIG. 2 is a front view of the same. Explanation of symbols, 1... Piston ring, 2... Swinging arm, 21... Swinging arm side part, 3, 3'
... Cover, 4, 4' ... Bolt, 5 ... Fixed arm, 51 ... Fixed arm side part.
Claims (1)
に固定し、もう一方側を揺動アーム２に固定し、
ピストンリング合口部のクリアランスＣをセツト
ギヤツプの状態に調整した後、揺動アームをツイ
スト方向に振動させる事により、捩りに対するピ
ストンリング強度を測定するピストンリング捩り
試験方法。1 Fix one side of the piston ring abutment with arm 5
and the other side to the swing arm 2,
A piston ring torsion test method in which the piston ring strength against torsion is measured by vibrating the swinging arm in the twisting direction after adjusting the clearance C of the piston ring abutment to a set gap state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5141583A JPS59178333A (en) | 1983-03-29 | 1983-03-29 | Twist testing method of piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5141583A JPS59178333A (en) | 1983-03-29 | 1983-03-29 | Twist testing method of piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59178333A JPS59178333A (en) | 1984-10-09 |
| JPH038700B2 true JPH038700B2 (en) | 1991-02-06 |
Family
ID=12886293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5141583A Granted JPS59178333A (en) | 1983-03-29 | 1983-03-29 | Twist testing method of piston ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59178333A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2652898B1 (en) * | 1989-10-05 | 1992-04-24 | Floquet Monopole | FATIGUE PISTON SEGMENT TEST MACHINE. |
| CN107677558B (en) * | 2017-09-04 | 2020-04-07 | 哈尔滨工程大学 | Device and method for testing torsional rigidity of radial section of piston ring |
-
1983
- 1983-03-29 JP JP5141583A patent/JPS59178333A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59178333A (en) | 1984-10-09 |
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