JPH04106456A - Friction tester - Google Patents
Friction testerInfo
- Publication number
- JPH04106456A JPH04106456A JP22421490A JP22421490A JPH04106456A JP H04106456 A JPH04106456 A JP H04106456A JP 22421490 A JP22421490 A JP 22421490A JP 22421490 A JP22421490 A JP 22421490A JP H04106456 A JPH04106456 A JP H04106456A
- Authority
- JP
- Japan
- Prior art keywords
- sample
- moving surface
- load
- sample holder
- horizontal direction
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、低速から高速までの広い速度範囲における移
動面に対する摩擦係数を測定する摩擦試験装置に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a friction testing device that measures the coefficient of friction on a moving surface in a wide speed range from low speed to high speed.
従来の摩擦試験装置は、サンプルに印加する荷重を重錘
によって印加する所謂重錘印加方式が多い。従って、サ
ンプルに高荷重を印加しようとすると重錘が増し、その
増量した重錘荷重を支えうる強度上の要請から装置自体
が大型化するという問題があった。特に、路面などの移
動面に対するサンプルの摩擦係数を低速から高速までの
広い速度範囲で測定することが非常に困難になるという
問題があった。Many conventional friction test devices use a so-called weight application method in which a load is applied to a sample using a weight. Therefore, when attempting to apply a high load to the sample, the weight increases, and the apparatus itself becomes larger due to the requirement for strength to support the increased weight load. In particular, there has been a problem in that it is extremely difficult to measure the coefficient of friction of a sample against a moving surface such as a road surface over a wide speed range from low speed to high speed.
本発明の目的は、コンパクトながらサンプルに高荷重を
印加できると共に、低速から高速までの広い速度範囲の
移動面に対する摩擦係数を測定できる摩擦試験装置を提
供することにある。An object of the present invention is to provide a friction testing device that is compact but capable of applying a high load to a sample and that can measure the coefficient of friction on a moving surface over a wide speed range from low speed to high speed.
すなわち、本発明の摩擦試験装置は、フレームにベース
部材を固定すると共に、該ベース部材に昇降自在なサン
プルホルダーと、該サンプルホルダーに垂直方向の荷重
を印加する流体シリンダーと、該流体シリンダーが印加
した荷重を検出する荷重検出部と、水平方向の滑り抵抗
を検出する力検出部とを配設し、かつ前記サンプルホル
ダーの下方領域に水平方向の平面からなる移動面と該移
動面を水平面で可変速に移動させる駆動手段とを設けた
ことを特徴とするものである。That is, the friction test device of the present invention has a base member fixed to a frame, a sample holder that can be raised and lowered to the base member, a fluid cylinder that applies a vertical load to the sample holder, and a fluid cylinder that applies a vertical load to the sample holder. A load detection unit that detects the load applied to the sample holder and a force detection unit that detects the horizontal sliding resistance are disposed, and a moving surface consisting of a horizontal plane is provided in the lower region of the sample holder, and the moving surface is connected to the horizontal plane. The present invention is characterized in that it is provided with a drive means for moving at a variable speed.
以下、図面により本発明の実施例について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図において、１は基盤１９上に固定された摩擦試験
装置、２は摩擦試験装置１のフレームであり、フレーム
２は左右一対の側板３，４と、この側板３，４を連結す
る上枠５とから構成されている。また、側板３．４間に
は、２本以上（図示の場合は２本）の直線状の棒体７が
水平に、かつ多段に固定されている。In FIG. 1, 1 is a friction test device fixed on a base 19, 2 is a frame of the friction test device 1, and the frame 2 is a pair of left and right side plates 3, 4, and a top plate connecting the side plates 3, 4. It is composed of a frame 5. Further, two or more (two in the illustrated case) linear rods 7 are fixed horizontally and in multiple stages between the side plates 3.4.
この棒体７，７には、板状のベース部材８が固定されて
いる。第２図に示すように、このベース部材８の前面に
は、昇降自在なサンプルホルダー９と、このサンプルホ
ルダー９を介してサンプルホルダー９に装着されたサン
プル１０に所定荷重を印加するエアーシリンダー１１と
、サンプルホルダー９を介してサンプル１０に印加され
た荷重を検出する荷重検出部１２とか配設されている。A plate-shaped base member 8 is fixed to the rods 7, 7. As shown in FIG. 2, on the front surface of the base member 8, there is a sample holder 9 that can be raised and lowered freely, and an air cylinder 11 that applies a predetermined load to the sample 10 attached to the sample holder 9 via the sample holder 9. A load detection section 12 for detecting the load applied to the sample 10 via the sample holder 9 is also provided.
このサンプルホルダー９は、水平な板状のサンプルホル
ダー本体１３と、このサンプルホルダー本体１３に立設
された２本の垂直ガイド１４と、サンプルホルダー本体
１３の下面中央に固定されたサンプル取付部１５と、サ
ンプルホルダー本体１３の上面に固定された左右一対の
保合部１６から構成されている。前述した２本の垂直ガ
イド１４はスライダー８に固定された保持部材１７に摺
動自在に取り付けられている。The sample holder 9 includes a horizontal plate-shaped sample holder body 13, two vertical guides 14 erected on the sample holder body 13, and a sample mounting portion 15 fixed to the center of the lower surface of the sample holder body 13. and a pair of left and right retaining parts 16 fixed to the upper surface of the sample holder main body 13. The two vertical guides 14 mentioned above are slidably attached to a holding member 17 fixed to the slider 8.
エアーシリンダー１１のピストンロンド１８は、緩衝手
段２０を介してサンプルホルダー９の保合部１６と係合
しており、エアーシリンダー１１への空気圧導入により
サンプルホルダー９が上下するようになっている。サン
プルホルダー９が降下すると、路面などの移動面２１上
にサンプル１０が所定荷重で押圧され、その印加荷重が
荷重検出部１２によって測定されるようになっている。The piston rod 18 of the air cylinder 11 is engaged with the retaining portion 16 of the sample holder 9 via the buffer means 20, so that the sample holder 9 is moved up and down by introducing air pressure into the air cylinder 11. When the sample holder 9 descends, the sample 10 is pressed with a predetermined load onto a moving surface 21 such as a road surface, and the applied load is measured by the load detection section 12.
サンプル１０に印加される荷重は、バルブ３４を操作す
ることにより自由に調節できるようになっている。The load applied to the sample 10 can be freely adjusted by operating the valve 34.
緩衝手段２０は、エアーシリンダー１１のピストンロン
ド１８に固定された第１フランジ２２と、サンプルホル
ダー９の保合部１６に係合された第２フランジ２３と、
この第１．第２のフランジ２２．２３を連結する複数の
連結棒２４と、第１．第２フランジ２２．２３間に配設
されたコイルスプリング２５とから構成されている。第
１フランジ２２は、エアーシリンダー１１の押圧力がコ
イルスプリング２５のばね力を越えたとき、連結棒２４
に沿って移動できるようになっている。The buffer means 20 includes a first flange 22 fixed to the piston rod 18 of the air cylinder 11, a second flange 23 engaged with the retaining part 16 of the sample holder 9,
This first. A plurality of connecting rods 24 connecting the second flanges 22, 23; The coil spring 25 is arranged between the second flanges 22 and 23. The first flange 22 is connected to the connecting rod 24 when the pressing force of the air cylinder 11 exceeds the spring force of the coil spring 25.
It is now possible to move along.
第１図に示すように、移動面２１を固定したスライダー
３５には、基盤１９に回転自在に取り付けられたスクリ
ュー軸２６が螺合しており、このスクリュー軸２６が正
・逆回転することによりスライダー３５に固定された移
動面２１がガイドレール３６に沿って図の右又は左の方
向に直線状に、かつ水平に移動するようになっている。As shown in FIG. 1, a screw shaft 26 rotatably attached to the base 19 is screwed into the slider 35 to which the moving surface 21 is fixed. A moving surface 21 fixed to a slider 35 is configured to move linearly and horizontally along a guide rail 36 to the right or left in the figure.
このスクリュー軸２６の回転は、基盤１９に取り付けら
れた電動モーター２８によって行われ、この電動モータ
ー２８の回転速度を制御することにより移動面２１を低
速から高速までの広い速度範囲で水平に移動させること
ができるようになっている。また、ベース部材８の裏面
には、水平方向の滑り抵抗（水平方向の力）を検出する
力検出部（図示せず）が取り付けられている。The rotation of this screw shaft 26 is performed by an electric motor 28 attached to the base 19, and by controlling the rotational speed of this electric motor 28, the moving surface 21 is horizontally moved in a wide speed range from low speed to high speed. It is now possible to do so. Further, a force detection section (not shown) is attached to the back surface of the base member 8 to detect horizontal slip resistance (horizontal force).
さらに、ガイドレール３６には、スケール３１が取り付
けられ、スライダー３５に取り付けた距離計（図示せず
）によってスライダー３５の移動距離が測定できるよう
になっている。Furthermore, a scale 31 is attached to the guide rail 36, so that a distance meter (not shown) attached to the slider 35 can measure the moving distance of the slider 35.
また、ガイドレール３６の両側には、スライダー３５の
オーバーランを防止するリミットスイッチ（図示せず）
がそれぞれ取り付けられている。Additionally, limit switches (not shown) are provided on both sides of the guide rail 36 to prevent the slider 35 from overrunning.
are attached to each.
さて、サンプル１０と移動面２１との摩擦力を測定する
には、先ず、サンプル取付部１５にサンプル１０を取り
付けると共に、スライダー３５上に任意の移動面２１を
取り付ける。次いで、エアーシリンダー１１によってサ
ンプルホルダー９を降下させることによりサンプル１゜
を所定の荷重で移動面２１に押しつける。次いで、電動
モーター２８によってスクリュー軸２６を回転させるこ
とによりスライダー３５をガイドレール３６に沿って直
線状に、かつ水平に一定速度で移動させる。このときの
サンプル１０の水平方向の滑り抵抗（水平方向の力）を
ベース部材８の裏面に設けた力検出部（図示せず）によ
って検出し、摩擦係数とする。Now, in order to measure the frictional force between the sample 10 and the moving surface 21, first, the sample 10 is attached to the sample attachment part 15, and an arbitrary moving surface 21 is attached on the slider 35. Next, by lowering the sample holder 9 using the air cylinder 11, the sample 1° is pressed against the moving surface 21 with a predetermined load. Next, by rotating the screw shaft 26 with the electric motor 28, the slider 35 is moved linearly and horizontally at a constant speed along the guide rail 36. The horizontal sliding resistance (horizontal force) of the sample 10 at this time is detected by a force detection section (not shown) provided on the back surface of the base member 8, and is taken as a friction coefficient.
以上の説明では、移動面２１を水平に、かつ直線状に移
動させる場合について説明したが、第３図に示すように
、環状の移動面２１ａを水平な円板３７上に取り付け、
環状の移動面２１ａを水平面内で回転させるようにして
もよい。In the above explanation, the case where the moving surface 21 is moved horizontally and linearly has been explained, but as shown in FIG.
The annular moving surface 21a may be rotated within a horizontal plane.
この第２実施例では、前述した第１実施例と同じ構造及
び機能を有するものには、同し符号を付けた。In this second embodiment, parts having the same structure and function as those in the first embodiment described above are given the same reference numerals.
上記のように、本発明は、フレームにベース部材を固定
すると共に、該ベース部材に昇降自在なサンプルホルダ
ーと、該サンプルホルダーに垂直方向の荷重を印加する
流体シリンダーと、該流体シリンダーが印加した荷重を
検出する荷重検出部と、水平方向の滑り抵抗を検出する
力検出部とを配設し、かつ前記サンプルホルダーの下方
領域に水平方向の平面からなる移動面と該移動面を水平
面で可変速に移動させる駆動手段とを設けたので、重錘
を用いずにサンプルに高荷重を印加できるようになり、
装置自体のコンパクト化が可能になった。また、路面な
どの移動面に対するサンプルの摩擦係数を低速から高速
までの広い速度範囲で測定できるようになった。As described above, the present invention includes a base member fixed to a frame, a sample holder that can be raised and lowered to the base member, a fluid cylinder that applies a vertical load to the sample holder, and a fluid cylinder that applies a vertical load to the sample holder. A load detection section that detects a load and a force detection section that detects horizontal sliding resistance are disposed, and a moving surface consisting of a horizontal plane is provided in the lower region of the sample holder, and the moving surface is a horizontal plane. Since a drive means for moving the sample at variable speeds is provided, it is now possible to apply a high load to the sample without using a weight.
The device itself can now be made more compact. Additionally, it has become possible to measure the coefficient of friction of a sample against a moving surface such as a road surface over a wide speed range from low to high speeds.
第１図は本発明にががる摩擦試験装置の正面図、第２図
は本発明にががる摩擦試験装置の要部拡大図、第３図は
本発明にががる摩擦試験装置の斜視図である。
２・・・フレーム、８・・・ベース部材、９・・・サン
プルホルダー １１・・・流体シリンダー １２・・・
荷重検出部、２１，２１８・・・移動面、２８・・・駆
動手段。FIG. 1 is a front view of a friction testing device according to the present invention, FIG. 2 is an enlarged view of the main parts of the friction testing device according to the present invention, and FIG. 3 is a front view of the friction testing device according to the present invention. FIG. 2...Frame, 8...Base member, 9...Sample holder 11...Fluid cylinder 12...
Load detection unit, 21, 218... Moving surface, 28... Drive means.
Claims (1)
に昇降自在なサンプルホルダーと、該サンプルホルダー
に垂直方向の荷重を印加する流体シリンダーと、該流体
シリンダーが印加した荷重を検出する荷重検出部と、水
平方向の滑り抵抗を検出する力検出部とを配設し、かつ
前記サンプルホルダーの下方領域に水平方向の平面から
なる移動面と該移動面を水平面で可変速に移動させる駆
動手段とを設けた摩擦試験装置。a sample holder that fixes a base member to a frame and is movable up and down on the base member; a fluid cylinder that applies a load in a vertical direction to the sample holder; a load detection unit that detects the load applied by the fluid cylinder; A force detection unit for detecting sliding resistance in the horizontal direction is provided, and a moving surface formed of a horizontal plane and a driving means for moving the moving surface at a variable speed on the horizontal surface are provided in the lower region of the sample holder. Friction test equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22421490A JPH04106456A (en) | 1990-08-28 | 1990-08-28 | Friction tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22421490A JPH04106456A (en) | 1990-08-28 | 1990-08-28 | Friction tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04106456A true JPH04106456A (en) | 1992-04-08 |
Family
ID=16810305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22421490A Pending JPH04106456A (en) | 1990-08-28 | 1990-08-28 | Friction tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04106456A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5490410A (en) * | 1991-09-20 | 1996-02-13 | Ab Lorentzen & Wettre | Process and a device for measuring static and dynamic friction of sheet-shaped materials |
| KR100422690B1 (en) * | 2000-08-29 | 2004-03-12 | 현대자동차주식회사 | Friction factor measuring apparatus for wiper blade |
| KR100559312B1 (en) * | 1999-12-30 | 2006-03-15 | 현대자동차주식회사 | Method for diagnosing wiper |
| KR100915100B1 (en) * | 2007-07-26 | 2009-09-02 | 안병권 | Floor Wear Device |
| ES2335961A1 (en) * | 2009-10-07 | 2010-04-06 | Instituto Tecnologico De Aragon | Linear tribometer |
| US8074488B2 (en) * | 2006-09-08 | 2011-12-13 | Ford Global Technologies | Device for measuring coefficient of friction |
| WO2013071806A1 (en) * | 2011-11-15 | 2013-05-23 | 中国商用飞机有限责任公司 | Device and method for measuring dynamic resistance coefficient of sealing element at different temperatures |
| CN105043975A (en) * | 2015-07-28 | 2015-11-11 | 上海建工集团股份有限公司 | Concrete friction coefficient determination method and device |
| CN110006765A (en) * | 2019-06-06 | 2019-07-12 | 西南交通大学 | Portable rock pivoting friction experimental rig and its test method |
-
1990
- 1990-08-28 JP JP22421490A patent/JPH04106456A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5490410A (en) * | 1991-09-20 | 1996-02-13 | Ab Lorentzen & Wettre | Process and a device for measuring static and dynamic friction of sheet-shaped materials |
| KR100559312B1 (en) * | 1999-12-30 | 2006-03-15 | 현대자동차주식회사 | Method for diagnosing wiper |
| KR100422690B1 (en) * | 2000-08-29 | 2004-03-12 | 현대자동차주식회사 | Friction factor measuring apparatus for wiper blade |
| US8074488B2 (en) * | 2006-09-08 | 2011-12-13 | Ford Global Technologies | Device for measuring coefficient of friction |
| KR100915100B1 (en) * | 2007-07-26 | 2009-09-02 | 안병권 | Floor Wear Device |
| ES2335961A1 (en) * | 2009-10-07 | 2010-04-06 | Instituto Tecnologico De Aragon | Linear tribometer |
| WO2011042575A1 (en) * | 2009-10-07 | 2011-04-14 | Instituto Tecnológico De Aragón | Linear tribometer |
| WO2013071806A1 (en) * | 2011-11-15 | 2013-05-23 | 中国商用飞机有限责任公司 | Device and method for measuring dynamic resistance coefficient of sealing element at different temperatures |
| CN105043975A (en) * | 2015-07-28 | 2015-11-11 | 上海建工集团股份有限公司 | Concrete friction coefficient determination method and device |
| CN110006765A (en) * | 2019-06-06 | 2019-07-12 | 西南交通大学 | Portable rock pivoting friction experimental rig and its test method |
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