JPH0320639A - Method and apparatus for testing friction and abrasion - Google Patents
Method and apparatus for testing friction and abrasionInfo
- Publication number
- JPH0320639A JPH0320639A JP15527789A JP15527789A JPH0320639A JP H0320639 A JPH0320639 A JP H0320639A JP 15527789 A JP15527789 A JP 15527789A JP 15527789 A JP15527789 A JP 15527789A JP H0320639 A JPH0320639 A JP H0320639A
- Authority
- JP
- Japan
- Prior art keywords
- slider
- wear
- friction
- load
- sample
- 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
- 238000012360 testing method Methods 0.000 title claims description 22
- 238000005299 abrasion Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 title description 3
- 238000010998 test method Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 8
- 229930182556 Polyacetal Natural products 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は摩擦、摩耗試験方法並びにその試験に使用す
る摩擦、摩耗試験装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a friction and wear testing method and a friction and wear testing device used in the test.
一般に、ディスク等の摩擦力の測定は、第５図に示すよ
うに、ディスク１をターンテーブル２上に固定して駆動
モータ３で回転させ、調整ステージ１２で支持されたバ
ランスアーム１３の先端に固定板１４および支持軸工５
を介して取りつけられた接触先端が球面状の摺動子９を
、固定板１４上に乗載した分銅工６で一定荷重を加えな
がらディスク１の表面に摺接させて、摺動子９に働く摩
擦力をバランスアームｌ３に取りつけた摩擦力検出器１
７で検出し、増幅器１８を介して記録計ｌ９に記録する
か（新東科学社製フロッピーディスク摩擦抵抗測定機、
ＨＥ ｒＤＯＮ−２ １） 、あるいは、バランスアー
ム１３に取りつけた摩擦力検出器ｌ７に代えて、ターン
テーブル２と駆動モータ３との間の回転軸４にトルク検
出器を取りつけて、摩擦トルクから摩擦抵抗を測定する
（新菜化学社製フロッピーディスク摩擦抵抗測定機、Ｈ
ＥＩＤＯＮ−２０）などの方法で行われている。Generally, to measure the frictional force of a disk, etc., as shown in FIG. Fixed plate 14 and support shaft work 5
A slider 9 with a spherical contact tip attached to the slider 9 is brought into sliding contact with the surface of the disk 1 while applying a constant load with a weight 6 mounted on a fixed plate 14. Frictional force detector 1 attached to balance arm l3 to measure the working frictional force
7 and record it on the recorder 19 via the amplifier 18 (floppy disk friction resistance measuring machine manufactured by Shinto Kagakusha,
HE rDON-2 1) Alternatively, instead of the friction force detector l7 attached to the balance arm 13, a torque detector is attached to the rotating shaft 4 between the turntable 2 and the drive motor 3, and the friction is detected from the friction torque. Measuring resistance (Nina Chemical Co., Ltd. floppy disk friction resistance measuring machine, H
EIDON-20).
ところが、これらの摩擦、摩耗試験においては、摺動子
の摩耗により試料と摺動子間の接触面積が徐々に変化し
、試料と摺動子間の接触圧力が変化するという問題があ
り、摺動子の摩耗量の経時変化を測定しようとすると、
接触圧力の減少により摩耗性が低下して、試料自身の摩
耗性に影響を及ぼし、摺動子の摩耗量の経時変化を正確
に測定することができないという難点がある。また、接
触圧力の変化が試料自身の摩耗性に影響を及ぼす結果、
試料自身の摩耗性の変化も正確に測定することができな
いという難点がある。However, in these friction and wear tests, there is a problem that the contact area between the sample and the slider gradually changes due to wear of the slider, and the contact pressure between the sample and the slider changes. When trying to measure the change in the amount of wear on the mover over time,
There is a problem in that the reduction in contact pressure lowers the abrasiveness and affects the abrasiveness of the sample itself, making it impossible to accurately measure changes in the amount of wear of the slider over time. In addition, as a result of changes in contact pressure affecting the abrasiveness of the sample itself,
There is also the drawback that changes in the abrasiveness of the sample itself cannot be accurately measured.
〔諜題を解決するための手段］
この発明はかかる欠点を改善するため種々検討を行った
結果なされたもので、回転する試料面に対し、接触先端
を球面にした摺動子を、摺動子の摩耗に応じて摺動子へ
の印加荷重を変化させながら加圧摺動させ、試料面と摺
動子間の圧力を一定に制御して、摺動摩擦力および摺動
子の摩耗を測定することによって、接触圧力の低下によ
る摩耗性低下を防止し、試料自身の摩耗性への影響をな
くして、摺動子の摩耗量の経時変化が正確に測定できる
ようにしたものであるウまた、試料自身の摩耗性への影
響を除去することにより、試料自身の摩耗性の変化を正
確に測定できるようにしたものである。[Means for Solving the Problem] This invention was made as a result of various studies to improve the above-mentioned drawbacks. The slider is subjected to pressurized sliding while changing the load applied to the slider according to the wear of the slider, and the pressure between the sample surface and the slider is controlled to a constant level, and the sliding friction force and wear of the slider are measured. By doing so, it is possible to prevent a decrease in abrasion due to a decrease in contact pressure, eliminate the influence on the abrasion of the sample itself, and make it possible to accurately measure changes in the amount of wear of the slider over time. By eliminating the influence on the abrasiveness of the sample itself, it is possible to accurately measure changes in the abrasiveness of the sample itself.
以下、この発明の摩擦、摩耗試験装置の一実施例を示す
第１図に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the friction and wear testing device of the present invention will be described below with reference to FIG.
第１図において、１はフロッピーディスク、２は下方の
駆動モータ３に回転軸４を介して連動連結されたターン
テーブルであって、フロッピーディスクｌはこのターン
テーブル２上に固定され、モータ３の駆動によってター
ンテーブル２とともに所定の速度で回転される。In FIG. 1, 1 is a floppy disk, and 2 is a turntable that is interlocked and connected to a lower drive motor 3 via a rotating shaft 4. The floppy disk l is fixed on this turntable 2, and the motor 3 is By driving, it is rotated together with the turntable 2 at a predetermined speed.
５はバランスアームで、基台６上に立設された支持柱７
上に天秤状に揺動可能に支持され、基端を荷重発生部８
に接続し、先端の屈曲下端に接触先端を球面にした摺動
子９を取りつけて、フロッピーディスク１の表面に摺接
させている。5 is a balance arm, which is supported by a support column 7 erected on a base 6.
It is swingably supported in the shape of a balance on the top, and the base end is connected to the load generating part 8.
A slider 9 having a spherical contact tip is attached to the bent lower end of the tip and brought into sliding contact with the surface of the floppy disk 1.
１０は荷重発生部日に接続された計測制御装置で、この
計測制御装置１０により荷重発生部８に負荷する荷重が
制御調整され、摺動子９に適宜の荷重が負荷される。Reference numeral 10 denotes a measurement and control device connected to the load generation section.The measurement and control device 10 controls and adjusts the load applied to the load generation section 8, and applies an appropriate load to the slider 9.
１１はバランスアーム５先端の下垂部に取りつげられた
作動トランスで、計測制御装置１０に接続され、バラン
スアーム５下端の摺動子９がフロンビーディスク１との
摺接で摩耗すると、この摩耗が作動トランス１１で検出
されて、計測制御装置１０に伝達される。Reference numeral 11 denotes an operating transformer attached to the hanging part of the tip of the balance arm 5, which is connected to the measurement control device 10. is detected by the actuation transformer 11 and transmitted to the measurement control device 10.
ここで、作動トランス１１での検出は、第２図に示すよ
うに、摺動子９の摩耗を高さ方向の変位Ｘとして検出さ
れ、この変位量Ｘが計測制御装置１０に伝達される。そ
して、計測制御装置１０でこの変位量Ｘに基づいて摺動
子９の接触面積が算出され、荷重発生部８に負荷する荷
重が制御調整される。Here, as shown in FIG. 2, the actuation transformer 11 detects wear of the slider 9 as a displacement X in the height direction, and this displacement amount X is transmitted to the measurement control device 10. Then, the measurement control device 10 calculates the contact area of the slider 9 based on this displacement amount X, and controls and adjusts the load applied to the load generating section 8.
この計測制御装置１０における摺動子９の接触面積の算
出にあたっては、第２図に示すように、摺動子９の高さ
方向の変位Ｘが摺動子９の半径Ｒおよびｌに較べ充分小
さいと、ｘ−／！”／２Ｒとなり、また、摺動子９の接
触面積Ｓはπｌ２で表されることから、接触面積Ｓを高
さ方向の変位Ｘの関数として求め、この高さ方向の変位
Ｘの関数として求めた式
Ｓ＝πｌ２−２πＲｘ
により算出されて、摺動子９の高さ方向の変位Ｘから接
触面積Ｓが求められる。In calculating the contact area of the slider 9 in this measurement control device 10, as shown in FIG. If it is small, x-/! ”/2R, and since the contact area S of the slider 9 is expressed as πl2, the contact area S is determined as a function of the displacement X in the height direction, and the contact area S is determined as a function of this displacement X in the height direction. The contact area S is calculated from the displacement X of the slider 9 in the height direction.
従って、この接触面積Ｓに応じて荷重発生部８により摺
動子９に負荷する荷重を変化させれば、．摺動子９への
印加荷重を常に一定にすることができ、回転するフロッ
ピーディスク１に摺動子９を一定の圧力で加圧摺動させ
て、摺動摩擦力および摺動子９の摩耗を測定することが
できる。この荷重発生部８による摺動子９への負荷の調
整は、永久磁石とフォースコイルからなる荷重発生部８
のコイルに電流Ｉを流し、弐
Ｆ−２πｒｎＢＩ
（但し、Ｆは電磁力、ｒはコイル半径、ｎはコイルの巻
数、Ｂは磁石の磁束密度である。）に示されるように、
コイル電流Ｉに比例した電磁力Ｆが発生することを利用
して、コイル電流Ｉを制御し、電磁力Ｆを発生させて行
われ、所定の負荷に調整される。Therefore, if the load applied to the slider 9 by the load generator 8 is changed according to the contact area S, then... The load applied to the slider 9 can be kept constant at all times, and the slider 9 can be pressed against the rotating floppy disk 1 with a constant pressure to reduce sliding friction force and wear of the slider 9. can be measured. Adjustment of the load on the slider 9 by the load generating section 8 is carried out by the load generating section 8 consisting of a permanent magnet and a force coil.
A current I is passed through the coil, and as shown in 2F-2πrnBI (where F is the electromagnetic force, r is the coil radius, n is the number of turns of the coil, and B is the magnetic flux density of the magnet),
The coil current I is controlled by utilizing the fact that an electromagnetic force F proportional to the coil current I is generated, and the electromagnetic force F is generated to adjust the load to a predetermined value.
このように、摺動子９の摩耗が作動トランスｌ１で検出
されると、計測制御装置１０でこの高さ方向の変位ｌｘ
に基づいて摺動子９の接触面積が算出され、荷重発生部
８に負荷する荷重が制′４Ｂ調整されて、摺動子９への
印加荷重が調整される。In this way, when wear of the slider 9 is detected by the actuating transformer l1, the measurement control device 10 measures the displacement lx in the height direction.
The contact area of the slider 9 is calculated based on , and the load applied to the load generating section 8 is adjusted by the control 4B, so that the load applied to the slider 9 is adjusted.
しかして、フロッピーディスク１と摺動子９間の圧力が
常に一定に制御されて、摺動摩擦力および摺動子９の摩
耗が測定され、接触圧力の低下による摩耗性低下が防止
されて、摺動子９の摩耗量の経時変化が正確に測定され
、フロッピーディスク１自身の摩耗性の変化も正確に測
定される。Therefore, the pressure between the floppy disk 1 and the slider 9 is always controlled to be constant, the sliding friction force and the wear of the slider 9 are measured, and a decrease in abrasion due to a decrease in contact pressure is prevented, and the slider Changes in the amount of wear of the mover 9 over time can be accurately measured, and changes in the wear properties of the floppy disk 1 itself can also be accurately measured.
なお、以上の実施例においては、フロッピーディスクを
試料として用いた場合について説明したが、フロッピー
ディスクなどの磁気記録媒体に限らず、エメリ〜紙、ラ
ッピングテーブ等も試料として使用される。また、摺動
子は接触先端が球面加工されているものであればよく、
たとえば、ルビー球、ガラスビーズ等の鉱物、テフロン
、ポリアセタール、塩化ビニル系樹脂等の高分子材料を
球面加工したものも用いることができる。In the above embodiments, a case has been described in which a floppy disk is used as a sample, but not only magnetic recording media such as a floppy disk, but also emery paper, wrapping tape, etc. can be used as a sample. In addition, the slider may have a spherical contact tip.
For example, minerals such as ruby balls and glass beads, and polymeric materials such as Teflon, polyacetal, and vinyl chloride resins processed into spherical surfaces may also be used.
この発明の摩擦、摩耗試験装置は、以上説明したように
構威され、以下第１図に示されたこの発明の摩擦、摩耗
試験装置を用いて、試料１に摺接させた摺動子９の摩耗
量の測定を行った。The friction and wear test device of the present invention is constructed as described above, and using the friction and wear test device of the present invention shown in FIG. The amount of wear was measured.
試料１としては２種類のフロッピーディスクＡおよびＢ
を使用し、摺動子９としては直径が６．３５閣の鋼球を
用いた。また試験条件は、ターンテーブル２の回転数を
５００ｒｐｍとし、初期印可荷重２０ｇで、温度２０±
１゜Ｃ，湿度２０±５％ＲＨの条件下で、１０分間摺動
させた。Sample 1 consists of two types of floppy disks, A and B.
A steel ball with a diameter of 6.35 mm was used as the slider 9. The test conditions were: the rotation speed of the turntable 2 was 500 rpm, the initial applied load was 20 g, and the temperature was 20 ±
Sliding was performed for 10 minutes at 1°C, humidity and 20±5% RH.
第３図はこの摩耗試験の結果を、摺動子９の摩耗量と摺
動時間との関係図で表したもので、このグラフから２種
類のフロッピーディスクＡおよびＢと摺接する摺動子９
の摩耗量の経時変化の差が判別でき、さらに２種類のフ
ロッピーディスクＡとＢの摩耗特性に差があることがわ
かる。Figure 3 shows the results of this wear test as a relationship diagram between the amount of wear on the slider 9 and the sliding time.
It can be seen that there is a difference in the wear amount over time, and that there is a difference in the wear characteristics of the two types of floppy disks A and B.
また、この発明の摩擦、摩耗試験装置による摩耗試験と
比較するため、第５図に示す従来の摩擦、摩耗試験装置
を使用し、前記と同じ条件で２種類のフロッピーディス
クＡおよびＢと摺接する摺動子９の摩耗量を測定した。In addition, in order to compare the wear test with the friction and wear test device of the present invention, a conventional friction and wear test device shown in FIG. 5 was used to make sliding contact with two types of floppy disks A and B under the same conditions as above. The amount of wear on the slider 9 was measured.
第４図はこの摩耗試験の結果を、摺動子９の摩耗量と摺
動時間との関係図で表したもので、このグラフから従来
の摩擦、摩耗試験装置を使用した場合は、２種類のフロ
ッピーディスクＡおよびＢと摺接する摺動子９の摩耗量
の経時変化の差がなく、２種類のフロッピーディスクＡ
とＢの摩耗特性に差がみられない。Figure 4 shows the results of this wear test as a relationship diagram between the amount of wear on the slider 9 and the sliding time.From this graph, when using a conventional friction and wear test device, there are two types of friction and wear test equipment. There is no difference in the amount of wear over time of the slider 9 that comes into sliding contact with the two types of floppy disks A and B.
There is no difference in the wear characteristics between B and B.
しかして、従来の摩擦、摩耗試験においては、摺動子９
の摩耗量の経時変化を正確に測定することができず、フ
ロッピーディスクＡとＢの摩耗特性の違いを判別するこ
とができない。However, in conventional friction and wear tests, the slider 9
It is not possible to accurately measure the change over time in the amount of wear of floppy disks A and B, and it is not possible to distinguish between the wear characteristics of floppy disks A and B.
〔発明の効果］
以上説明したように、この発明における摩擦、摩耗試験
方法およびこの試験に使用する装置によれば、回転する
試料面に対し、接触先端を球面にした摺動子を、摺動子
の摩耗に応じて摺動子への印加荷重を変化させながら加
圧摺動させ、試料面と摺動子間の圧力を一定に制御して
、摺動摩擦力および摺動子の摩耗を測定しているため、
接触圧力の低下による摩耗性低下の影響を受けることな
く、試料自身の摩耗性を正確に評価することができ、ま
た摺動子の摩耗を正確に測定することができる。[Effects of the Invention] As explained above, according to the friction and wear test method of the present invention and the apparatus used for this test, a slider having a spherical contact tip is slid against a rotating sample surface. The slider is subjected to pressurized sliding while changing the load applied to the slider according to the wear of the slider, and the pressure between the sample surface and the slider is controlled to a constant level, and the sliding friction force and wear of the slider are measured. Because of this,
The abrasiveness of the sample itself can be accurately evaluated without being affected by a decrease in abrasiveness due to a decrease in contact pressure, and the abrasion of the slider can be accurately measured.
第１図はこの発明の摩擦、摩耗試験装置の一実施例を示
す概略図、第２図は摺動子の高さ方向の変位から接触面
積を算出する方法の説明図、第３図はこの発明の試験方
法で試験した摺動子の摩耗量と摺動時間との関係図、第
４図は従来の試験方法で試験した摺動子の摩耗量と摺動
時間との関係図、第５図は従来の摩擦、摩耗試験装置の
概略図である。
１・・・フロッピーディスク（試料）、２・・・ターン
テーブル、３・・・駆動モータ、４・・・回転軸、５・
・・ハランスアーム、６・・・基台、７・・・支持柱、
８・・・荷重発生部、９・・・摺動子、１０・・・計測
制御装置、１ｌ・・・作動トランスFig. 1 is a schematic diagram showing an embodiment of the friction and wear testing device of the present invention, Fig. 2 is an explanatory diagram of a method for calculating the contact area from the displacement in the height direction of the slider, and Fig. 3 is a diagram illustrating the method of calculating the contact area from the displacement in the height direction of the slider. Figure 4 is a diagram showing the relationship between the wear amount and sliding time of the slider tested using the test method of the invention. Figure 4 is a diagram showing the relationship between the wear amount and sliding time of the slider tested using the conventional test method. The figure is a schematic diagram of a conventional friction and wear testing device. DESCRIPTION OF SYMBOLS 1... Floppy disk (sample), 2... Turntable, 3... Drive motor, 4... Rotating shaft, 5...
...Harance arm, 6...base, 7...support column,
8...Load generation section, 9...Slider, 10...Measurement control device, 1l...Operation transformer
Claims (1)
子を、摺動子の摩耗に応じて摺動子への印加荷重を変化
させながら加圧摺動させ、試料面と摺動子間の圧力を一
定に制御して、摺動摩擦力および摺動子の摩耗を測定す
ることを特徴とする摩擦、摩耗試験方法 ２、試料を保持し回転させる試料の保持回転機構と摺動
子の加圧摺動機構とを備え、回転する試料面に、接触先
端を球面にした摺動子を加圧摺動させて摺動摩擦力およ
び摺動子の摩耗を測定する摩擦、摩耗試験装置において
、摺動子の摩耗に応じて摺動子への印加荷重を変化させ
、試料面と摺動子間の圧力を一定に制御する印加圧力制
御機構を設けたことを特徴とする摩擦、摩耗試験装置[Claims] 1. A slider having a spherical contact tip is slid under pressure against a rotating sample surface while changing the load applied to the slider according to the wear of the slider. , Friction and wear test method 2 characterized by controlling the pressure between the sample surface and the slider at a constant level and measuring the sliding friction force and the wear of the slider, Holding the sample by holding and rotating the sample Equipped with a rotation mechanism and a pressure sliding mechanism for the slider, the slider with a spherical contact tip is forced to slide on the rotating sample surface under pressure to measure the sliding friction force and the wear of the slider. A friction and wear test device that is equipped with an applied pressure control mechanism that changes the load applied to the slider according to the wear of the slider and controls the pressure between the sample surface and the slider at a constant level. Friction and wear test equipment
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15527789A JPH0320639A (en) | 1989-06-17 | 1989-06-17 | Method and apparatus for testing friction and abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15527789A JPH0320639A (en) | 1989-06-17 | 1989-06-17 | Method and apparatus for testing friction and abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0320639A true JPH0320639A (en) | 1991-01-29 |
Family
ID=15602384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15527789A Pending JPH0320639A (en) | 1989-06-17 | 1989-06-17 | Method and apparatus for testing friction and abrasion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0320639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168757A (en) * | 2017-12-14 | 2018-06-15 | 哈尔滨工业大学 | The small racemization power test platform of space Tum bling Target electromagnetism racemization and its test method |
| RU2675208C1 (en) * | 2017-12-07 | 2018-12-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Оренбургский государственный аграрный университет" | Installation for the research of the wearing processes of machine parts |
-
1989
- 1989-06-17 JP JP15527789A patent/JPH0320639A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2675208C1 (en) * | 2017-12-07 | 2018-12-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Оренбургский государственный аграрный университет" | Installation for the research of the wearing processes of machine parts |
| CN108168757A (en) * | 2017-12-14 | 2018-06-15 | 哈尔滨工业大学 | The small racemization power test platform of space Tum bling Target electromagnetism racemization and its test method |
| CN108168757B (en) * | 2017-12-14 | 2019-10-22 | 哈尔滨工业大学 | The small racemization power test platform of space Tum bling Target electromagnetism racemization and its test method |
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