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JPH056131B2 - - Google Patents
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JPH056131B2 - - Google Patents

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Publication number
JPH056131B2
JPH056131B2 JP62008807A JP880787A JPH056131B2 JP H056131 B2 JPH056131 B2 JP H056131B2 JP 62008807 A JP62008807 A JP 62008807A JP 880787 A JP880787 A JP 880787A JP H056131 B2 JPH056131 B2 JP H056131B2
Authority
JP
Japan
Prior art keywords
spindle
test object
sample stage
testing machine
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.)
Expired - Fee Related
Application number
JP62008807A
Other languages
Japanese (ja)
Other versions
JPS63177035A (en
Inventor
Hiroshi Ueno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Priority to JP62008807A priority Critical patent/JPS63177035A/en
Publication of JPS63177035A publication Critical patent/JPS63177035A/en
Publication of JPH056131B2 publication Critical patent/JPH056131B2/ja
Granted legal-status Critical Current

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  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Description

【発明の詳細な説明】 〈産業上の利用分野〉 この発明は、回転するスピンドルを試料台とで
被試験体を挟み、被試験体の疲労試験を行なう転
がり軸受の疲労試験機に関する。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a fatigue testing machine for rolling bearings that performs a fatigue test on a test object by sandwiching the test object between a rotating spindle and a sample stage.

〈従来の技術〉 従来、転がり軸受の疲労試験機としては第4図
に示すものがある。この転がり軸受の疲労試験機
は、基台1上の本体2に回転自在に取付けられ、
鉛直下方に延びるスピンドル5を備えている。上
記スピンドル5の上端部と回転数が一定のモータ
3とをベルト4で連結し、スピンドル5の下端部
に回転輪8を固定している。一方、上記本体2に
取付けられたリンク機構11の一端部には、所定
の負荷に相当する数の分銅12,12,…を吊り
下げ、分銅12,12,…の近傍に振動検出器1
4を取付けている。試験片7をクランプした試料
台6を上記リンク機構11の他端部で下方から支
持している。上記回転輪8と試験片7との間にボ
ール10,10,…を配置している。
<Prior Art> Conventionally, there is a fatigue testing machine for rolling bearings as shown in Fig. 4. This rolling bearing fatigue testing machine is rotatably mounted on a main body 2 on a base 1.
It is equipped with a spindle 5 that extends vertically downward. The upper end of the spindle 5 and a motor 3 having a constant rotation speed are connected by a belt 4, and a rotating wheel 8 is fixed to the lower end of the spindle 5. On the other hand, a number of weights 12, 12, . . . corresponding to a predetermined load are suspended from one end of the link mechanism 11 attached to the main body 2, and a vibration detector 1 is placed near the weights 12, 12, .
4 is installed. The sample stage 6 on which the test piece 7 is clamped is supported from below by the other end of the link mechanism 11. Balls 10, 10, . . . are arranged between the rotating wheel 8 and the test piece 7.

そして、上記モータ3の駆動によりスピンドル
5を回転させて、回転輪8をボール10,10,
…に接触させてボール10,10,…を回転させ
ながら分銅12,12,…でリンク機構11を介
して試験片7に負荷を与えて、試験片7の疲労試
験を行い、試験片7のフレーキングによる振動の
発生時には、振動検出器14でモータ3を停止さ
せるようにしている。
Then, the spindle 5 is rotated by the drive of the motor 3, and the rotating wheel 8 is rotated by the balls 10, 10,
A fatigue test was performed on the test piece 7 by applying a load to the test piece 7 via the link mechanism 11 with weights 12, 12, ... while rotating the balls 10, 10, ... in contact with... When vibration occurs due to flaking, a vibration detector 14 is used to stop the motor 3.

〈発明が解決しようとする問題点〉 ところが、上記従来の疲労試験機では、モータ
3の回転数が一定であるため、回転数を種々変え
て疲労試験を行なえないという問題がある。ま
た、上記従来の疲労試験機では、試験片7に与え
られる負荷が分銅12,12,…の数で決まるた
め、負荷を段階的にしか変えられず、連続的に負
荷の大きさを変えて疲労試験ができないという問
題がある。また、上記従来の疲労試験機では、振
動検出器14の位置が試験片7から離れた分銅1
2,12,…の近傍であるため、試験片7で発生
した振動を精度よく検出できないという問題があ
る。
<Problems to be Solved by the Invention> However, in the conventional fatigue testing machine described above, since the number of revolutions of the motor 3 is constant, there is a problem in that fatigue tests cannot be performed by varying the number of revolutions. In addition, in the conventional fatigue testing machine described above, the load applied to the test piece 7 is determined by the number of weights 12, 12, ..., so the load can only be changed in steps, and the magnitude of the load cannot be changed continuously. There is a problem that fatigue tests cannot be performed. In addition, in the conventional fatigue testing machine described above, the position of the vibration detector 14 is located at a distance from the test piece 7 to the weight 1.
2, 12, . . . , there is a problem that the vibration generated in the test piece 7 cannot be detected with high accuracy.

そこで、この発明の目的は、モータの回転数を
変えることができ、負荷を連続的に変化させるこ
とができ、被試験体で発生する振動を精度よく検
出できる転がり軸受の疲労試験機を提供すること
にある。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a rolling bearing fatigue testing machine that can change the rotational speed of the motor, continuously change the load, and accurately detect vibrations generated in the test object. There is a particular thing.

〈問題点を解決するための手段〉 上記目的を達成するため、この発明の構成は、
被試験体が固定される試料台と、上記被試験体に
関して上記試料台と反対側に位置するスピンドル
と、上記スピンドルを回転させると共に、上記ス
ピンドルの回転数を制御する回転駆動手段と、上
記試料台を調心機構を介して上記スピンドルの方
向に押圧して上記被試験体に負荷を与える駆動シ
リンダと、上記試料台の振動を直接検出する振動
検出手段とを備えることを特徴としている。
<Means for solving the problems> In order to achieve the above object, the structure of the present invention is as follows.
a sample stage on which a test object is fixed; a spindle located on the opposite side of the test object from the sample stand; a rotation drive means for rotating the spindle and controlling the rotational speed of the spindle; The present invention is characterized by comprising a drive cylinder that presses the stand in the direction of the spindle via an alignment mechanism to apply a load to the test object, and vibration detection means that directly detects vibrations of the sample stand.

〈作用〉 駆動シリンダを駆動し、試料台を持ち上げ、被
試験体をスピンドルに当接させ、被試験体をスピ
ンドルと試料台とで挟む。このとき、調心機構を
介して、試料台がスピンドルに向けて押圧される
ため、試料台の傾きが防止され、正確な測定が可
能になる。そして、回転駆動手段によりスピンド
ルを介して被試験体を回転させて、被試験体の回
転数を制御すると共に、被試験体に与えられる負
荷を駆動シリンダにより制御する。そして、所定
時間の経過後、被試験体にフレーキングが生じる
と、被試験体は縦振動をし始める。被試験体の縦
振動が試料台に伝わり、この振動は振動検出手段
で直接検出する。この機械的振動が設定値以上に
なると、振動検出手段が作動し、異常信号を出力
する。そして、回転駆動手段および駆動シリンダ
を停止する。
<Operation> The drive cylinder is driven, the sample stage is lifted, the test object is brought into contact with the spindle, and the test object is sandwiched between the spindle and the sample stand. At this time, since the sample stage is pressed toward the spindle via the alignment mechanism, tilting of the sample stage is prevented and accurate measurement becomes possible. The rotational driving means rotates the test object via a spindle to control the rotational speed of the test object, and the load applied to the test object is controlled by the drive cylinder. When flaking occurs on the test object after a predetermined period of time has elapsed, the test object begins to vibrate longitudinally. The longitudinal vibration of the test object is transmitted to the sample stage, and this vibration is directly detected by the vibration detection means. When this mechanical vibration exceeds a set value, the vibration detection means is activated and outputs an abnormal signal. Then, the rotational drive means and the drive cylinder are stopped.

〈実施例〉 以下、この発明を図示の一実施例により詳細に
説明する。
<Example> Hereinafter, the present invention will be explained in detail with reference to an illustrated example.

第1図は転がり軸受の疲労試験機の全体図、第
2図は第1図の−線矢視図である。
FIG. 1 is an overall view of a fatigue testing machine for rolling bearings, and FIG. 2 is a view taken along the - line in FIG. 1.

複数の疲労試験機20,20,…は基台21上
に一定間隔をあけて配置している。上記疲労試験
機20は駆動シリンダとしてのエアシリンダ22
を基台21に取付けている。上記エアシリンダ2
2のピストンロツド23の先端部の近傍には円柱
状の試料台25を設けている。また、スピンドル
26を鉛直に配置し、試料台25近傍まで延ばし
ている。上記スピンドル26の下端部には第3図
に示すように円柱部24を形成し、この円柱部2
4の底面外周縁に段部29を形成している。一
方、上記スピンドル26の上端部にプーリ28を
取付けている。第2図に示すように、電動モータ
31の駆動軸にプーリ32を取付けている。この
プーリ32とスピンドル26のプーリ28とをベ
ルト35で連結している。上記電動モータ31の
回転数を制御するインバータ回路36を基台21
の内部に設けている。上記インバータ回路36と
電動モータ31で回転駆動手段を構成する。上記
スピンドル26のプーリ28と円板37とを一体
に固定している。この円板37には回転検出セン
サ38を対向させている。
A plurality of fatigue testing machines 20, 20, . . . are arranged on a base 21 at regular intervals. The fatigue tester 20 has an air cylinder 22 as a driving cylinder.
is attached to the base 21. Air cylinder 2 above
A cylindrical sample stage 25 is provided near the tip of the second piston rod 23. Further, the spindle 26 is arranged vertically and extends to the vicinity of the sample stage 25. A cylindrical portion 24 is formed at the lower end of the spindle 26 as shown in FIG.
A stepped portion 29 is formed on the outer periphery of the bottom surface of 4. On the other hand, a pulley 28 is attached to the upper end of the spindle 26. As shown in FIG. 2, a pulley 32 is attached to the drive shaft of an electric motor 31. This pulley 32 and the pulley 28 of the spindle 26 are connected by a belt 35. The inverter circuit 36 that controls the rotation speed of the electric motor 31 is mounted on the base 21.
It is located inside. The inverter circuit 36 and the electric motor 31 constitute a rotational drive means. The pulley 28 of the spindle 26 and the disc 37 are fixed together. A rotation detection sensor 38 is placed opposite to this disc 37 .

第3図に示すように、上記エアシリンダ22と
試料台25と被試験体30とスピンドル26とは
同一軸線上に位置している。上記エアシリンダ2
2はピストンロツド23の先端部に円錐穴41を
形成し、この円錐穴41にボール42を載置して
いる。上記ピストンロツド23は先端部にボール
42の外周を覆うリング状の保持部材43を嵌合
して、ボール42が円錐穴41から脱出するのを
防止している。また、この保持部材43は、ピス
トンロツド23を上昇させ、試料台25を押し上
げスピンドル26へ押し合わせる際に、試料台2
5の傾きを防止し、スムーズに押しあてができる
ような役割もある。一方、上記試料台25は下面
の略中央部に円錐穴45を形成している。この円
錐穴45にボール42を嵌め込み、ピストンロツ
ド23で試料台25を下方から支持している。ボ
ール42を介して支持する事で試料には偏当たり
することのない均一な荷重が加わるようになる。
上記円錐穴41,45およびボール42で調心機
構の一例を構成する。上記試料台25は下面に振
動検出手段であるセンサ58を固定している。上
記センサ58をレコーダ(図示せず)に接続し、
被試験体30で発生した振動を記録するようにし
ている。上記試料台25の上面の略中央部に凹部
46を形成し、この凹部46の中央にネジ孔47
を形成している。上記ネジ孔47には、円筒部材
48に挿通したボルト51をネジ込み、円筒部材
48でフランジ状の被試験体30を試料台25の
上面に固定している。上記被試験体30は軸受鋼
で形成されている。一方、上記スピンドル26の
円柱部24の段部29へ回転輪52を嵌め込み、
回転輪52と被試験体30との間に保持器53で
保持されるボール55,55,…を介在させてい
る。上記ボール55,55,…を円周方向に沿つ
て等配し、回転輪52の軌道面と被試験体30の
上面に当接させている。上記試料台25は上面の
外周縁近傍にリング状の凹部56を形成し、この
凹部56ヘアクリル製の円筒カバー57の下部を
嵌め込んでいる。上記円筒カバー57は被試験体
30、ボール55,55,…、保持器53および
回転輪52の外周を覆つている。一方、上記試料
台25は側面には半径方向に突出した棒材61を
取付けている。上記試料台25の近傍にはトリク
リミツタ62を設け、このトルクリミツタ62に
トルクバー63を取付けている。上記試料台25
の棒材61とトルクリミツタ62のトルクバー6
3との位置関係は、棒材61とトルクバー63と
の接触位置がトルクバー63の基端から遠ざかる
に従つて試料台25の回転力が小さくてもトルク
リミツタ62が作動するようになつている。
As shown in FIG. 3, the air cylinder 22, sample stage 25, test object 30, and spindle 26 are located on the same axis. Air cylinder 2 above
2, a conical hole 41 is formed at the tip of the piston rod 23, and a ball 42 is placed in the conical hole 41. A ring-shaped holding member 43 that covers the outer periphery of the ball 42 is fitted at the tip of the piston rod 23 to prevent the ball 42 from escaping from the conical hole 41. Further, this holding member 43 is used to hold the sample stand 25 when the piston rod 23 is raised and the sample stand 25 is pushed up and pressed against the spindle 26.
It also has the role of preventing 5 from tilting and allowing smooth pressing. On the other hand, the sample stage 25 has a conical hole 45 formed approximately in the center of its lower surface. A ball 42 is fitted into the conical hole 45, and the piston rod 23 supports the sample stage 25 from below. By supporting the sample through the ball 42, a uniform load is applied to the sample without biasing the sample.
The conical holes 41, 45 and the ball 42 constitute an example of an alignment mechanism. The sample stage 25 has a sensor 58, which is a vibration detection means, fixed to the lower surface thereof. Connecting the sensor 58 to a recorder (not shown),
The vibrations generated in the test object 30 are recorded. A recess 46 is formed approximately in the center of the upper surface of the sample stage 25, and a screw hole 47 is formed in the center of the recess 46.
is formed. A bolt 51 inserted through a cylindrical member 48 is screwed into the screw hole 47, and the flange-shaped test object 30 is fixed to the upper surface of the sample stage 25 by the cylindrical member 48. The test object 30 is made of bearing steel. On the other hand, the rotating ring 52 is fitted into the stepped portion 29 of the cylindrical portion 24 of the spindle 26,
Balls 55, 55, . . . held by a retainer 53 are interposed between the rotating ring 52 and the test object 30. The balls 55, 55, . . . are equally distributed along the circumferential direction and are brought into contact with the raceway surface of the rotary ring 52 and the upper surface of the test object 30. The sample stage 25 has a ring-shaped recess 56 formed near the outer periphery of its upper surface, into which the lower part of a cylindrical cover 57 made of acrylic is fitted. The cylindrical cover 57 covers the outer periphery of the test object 30, the balls 55, 55, . . . , the retainer 53, and the rotating ring 52. On the other hand, the sample stage 25 has a bar 61 protruding in the radial direction attached to the side surface thereof. A torque limiter 62 is provided near the sample stage 25, and a torque bar 63 is attached to this torque limiter 62. The above sample stage 25
Torque bar 6 consisting of rod 61 and torque limiter 62
3 is such that as the contact position between the bar 61 and the torque bar 63 moves away from the base end of the torque bar 63, the torque limiter 62 operates even if the rotational force of the sample stage 25 is small.

上記構成において、低い空気圧力でエアシリン
ダ22を作動し、ピストンロツド23を伸長さ
せ、回転輪52をスピンドル26の段部29へ嵌
め込む。そうすると、スピンドル26、回転輪5
2、被試験体30、試料台25およびピストンロ
ツド23は同一軸線上に位置付けられる。そし
て、電動モータ31を駆動し、電動モータ31の
プーリ32、ベルト35およびプーリ28を介し
てスピンドル26と円板37を回転させると共
に、高い圧力で上記エアシリンダ22を作動させ
てピストンロツド23でボール42を介して試料
台25を下方から押圧する。このとき、円板37
の回転数は回転数検出センサ38で検出され、電
動モータ31の回転数はインバータ回路36で所
望の回転数に制御される。スピンドル26はイン
バータ回路36によつて所望の回転数で回転し、
回転輪52はボール55,55,…で支持されて
回る。このとき被試験体30の上面は等配された
ボール55,55,…で拘束される一方、被試験
体30の下面は試料台25に円周上均等に押圧さ
れるので、試験体30に所定の負荷が与えられ
る。被試験体30またはボール55,55,…に
フレーキングが発生すると、被試験体30とボー
ル55,55,…との間に摩擦抵抗が生じ、被試
験体30が縦振動をする。この縦振動が試料台2
5へ伝わり、センサ58が縦振動を検出する。縦
振動が記録される。フレーキングがさらに発達す
ると、被試験体30とボール55,55,…との
間の摩擦抵抗が大きくなり、試料台25が回転輪
52に従動してつれ回わる。そうすると、棒材6
1が移動して、トルクリミツタ62のトルクバー
63を押圧する。棒材61がトルクバー63を押
す力が設定値以上になると、トルクリミツタ62
が作動して、電動モータ31とエアシリンダ22
が停止する。トルクリミツタ62が作動する摩擦
抵抗値は、棒材61とトルクバー63との接触位
置を変えることにより適宜な値に設定できる。
In the above configuration, the air cylinder 22 is actuated with low air pressure, the piston rod 23 is extended, and the rotary ring 52 is fitted into the stepped portion 29 of the spindle 26. Then, the spindle 26, the rotating wheel 5
2. The test object 30, sample stage 25, and piston rod 23 are positioned on the same axis. Then, the electric motor 31 is driven to rotate the spindle 26 and disk 37 via the pulley 32, belt 35, and pulley 28 of the electric motor 31, and the air cylinder 22 is operated with high pressure to cause the piston rod 23 to rotate the ball. The sample stage 25 is pressed from below via 42. At this time, the disk 37
The rotation speed of the electric motor 31 is detected by a rotation speed detection sensor 38, and the rotation speed of the electric motor 31 is controlled to a desired rotation speed by an inverter circuit 36. The spindle 26 is rotated at a desired rotation speed by an inverter circuit 36,
The rotating wheel 52 is supported by balls 55, 55, . . . and rotates. At this time, the upper surface of the test object 30 is restrained by equally distributed balls 55, 55, etc., while the lower surface of the test object 30 is pressed against the sample stage 25 evenly on the circumference, so that the test object 30 is A predetermined load is applied. When flaking occurs on the test object 30 or the balls 55, 55, . . . , frictional resistance occurs between the test object 30 and the balls 55, 55, . . . , and the test object 30 longitudinally vibrates. This longitudinal vibration causes the sample stage 2
5, and the sensor 58 detects the longitudinal vibration. Longitudinal vibrations are recorded. As the flaking further develops, the frictional resistance between the test object 30 and the balls 55, 55, . . . increases, and the sample stage 25 follows the rotating wheel 52 and rotates. Then, the bar 6
1 moves and presses the torque bar 63 of the torque limiter 62. When the force with which the bar 61 pushes the torque bar 63 exceeds the set value, the torque limiter 62
operates, and the electric motor 31 and air cylinder 22
stops. The frictional resistance value at which the torque limiter 62 operates can be set to an appropriate value by changing the contact position between the rod 61 and the torque bar 63.

このように、スピンドル26の回転数をインバ
ータ回路36により制御すると共にエアシリンダ
22の圧力制御により負荷を種々変えることがで
きるので、種々の回転速度、負荷条件での疲労試
験結果を得ることができる。また、試料台25に
センサ58を設けるので、被試験体30で発生し
たフレーキングによる縦振動を試料台25から直
接検出でき、縦振動を精度よく記録できる。ま
た、調心機構を用いているので、試料台25の傾
きを防止して、被試験体30への偏荷重を防止で
きる。
In this way, since the rotational speed of the spindle 26 is controlled by the inverter circuit 36 and the load can be varied by controlling the pressure of the air cylinder 22, fatigue test results can be obtained under various rotational speeds and load conditions. . Further, since the sensor 58 is provided on the sample stage 25, the longitudinal vibration due to flaking generated in the test object 30 can be directly detected from the sample stage 25, and the longitudinal vibration can be recorded with high accuracy. Furthermore, since the alignment mechanism is used, it is possible to prevent the sample stage 25 from tilting, thereby preventing an uneven load on the test object 30.

上記実施例では、エアシリンダを用いたが、油
圧シリンダを用いてもよい。
In the above embodiment, an air cylinder was used, but a hydraulic cylinder may also be used.

〈発明の効果〉 以上の説明より明らかなように、この発明の転
がり軸受の疲労試験機は、被試験体が固定される
試料台と、上記被試験体を上記試料台とで挟むス
ピンドルと、上記スピンドルを回転させると共
に、上記スピンドルの回転数を制御する回転駆動
手段と、上記試料台を調心機構を介して上記スピ
ンドルの方向に押圧して上記被試験体に負荷を与
える駆動シリンダと、上記試料台の振動を直接検
出する振動検出手段とを備えているので、スピン
ドルの回転数と被試験体に与える負荷を種々変え
ることができ、したがつて種々の条件での疲労試
験結果を得ることができる。また、この発明によ
れば、試料台の振動を直接検出する振動検出手段
を備えているので、被試験体で発生したフレーキ
ング等による振動を精度よく検出できる。また、
この発明によれば、試料台を調心機構を介してス
ピンドルの方向に押圧するので、試料台の傾きを
防止して、正確な測定ができる。
<Effects of the Invention> As is clear from the above description, the rolling bearing fatigue testing machine of the present invention includes: a sample stand to which a test object is fixed; a spindle that holds the test object between the sample stand; a rotational drive unit that rotates the spindle and controls the rotational speed of the spindle; a drive cylinder that presses the sample stage in the direction of the spindle via an alignment mechanism to apply a load to the test object; Since it is equipped with a vibration detection means that directly detects the vibration of the sample stage, it is possible to vary the rotational speed of the spindle and the load applied to the test object, thereby obtaining fatigue test results under various conditions. be able to. Further, according to the present invention, since the vibration detection means for directly detecting the vibration of the sample stage is provided, vibrations caused by flaking or the like generated in the test object can be detected with high accuracy. Also,
According to this invention, since the sample stand is pressed in the direction of the spindle via the alignment mechanism, the sample stand is prevented from tilting and accurate measurements can be made.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の一実施例の転がり軸受の疲
労試験機の全体図、第2図は第1図の−線矢
視図、第3図は転がり軸受の疲労試験機の要部断
面図、第4図は従来例の全体図である。 22……駆動シリンダ、25……試料台、26
……スピンドル、31,36……回転駆動手段、
58……振動検出手段。
Fig. 1 is an overall view of a fatigue testing machine for rolling bearings according to an embodiment of the present invention, Fig. 2 is a view taken along the - line in Fig. 1, and Fig. 3 is a sectional view of essential parts of the fatigue testing machine for rolling bearings. , FIG. 4 is an overall view of the conventional example. 22... Drive cylinder, 25... Sample stage, 26
... Spindle, 31, 36 ... Rotation drive means,
58... Vibration detection means.

Claims (1)

【特許請求の範囲】 1 被試験体が固定される試料台と、上記被試験
体に関して上記試料台と反対側に位置するスピン
ドルと、上記スピンドルを回転させると共に、上
記スピンドルの回転数を制御する回転駆動手段
と、上記試料台を調心機構を介して上記スピンド
ルの方向に押圧して上記被試験体に負荷を与える
駆動シリンダと、上記試料台の振動を直接検出す
る振動検出手段とを備えることを特徴とする転が
り軸受の疲労試験機。 2 上記回転駆動手段は上記スピンドルを駆動す
る電動モータと上記電動モータの回転数を制御す
るインバータ回路とからなることを特徴とする上
記特許請求の範囲第1項に記載の転がり軸受の疲
労試験機。 3 上記駆動シリンダはエアシリンダであること
を特徴とする上記特許請求の範囲第1項に記載の
転がり軸受の疲労試験機。
[Claims] 1. A sample stage on which a test object is fixed, a spindle located on the opposite side of the test object from the sample stage, and a system for rotating the spindle and controlling the rotational speed of the spindle. A rotational drive means, a drive cylinder that presses the sample stand in the direction of the spindle via an alignment mechanism to apply a load to the test object, and a vibration detection means that directly detects the vibration of the sample stand. A fatigue testing machine for rolling bearings. 2. The rolling bearing fatigue testing machine according to claim 1, wherein the rotational drive means comprises an electric motor that drives the spindle and an inverter circuit that controls the number of rotations of the electric motor. . 3. The rolling bearing fatigue testing machine according to claim 1, wherein the drive cylinder is an air cylinder.
JP62008807A 1987-01-17 1987-01-17 Fatigue tester of roll bearing Granted JPS63177035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62008807A JPS63177035A (en) 1987-01-17 1987-01-17 Fatigue tester of roll bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62008807A JPS63177035A (en) 1987-01-17 1987-01-17 Fatigue tester of roll bearing

Publications (2)

Publication Number Publication Date
JPS63177035A JPS63177035A (en) 1988-07-21
JPH056131B2 true JPH056131B2 (en) 1993-01-25

Family

ID=11703107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62008807A Granted JPS63177035A (en) 1987-01-17 1987-01-17 Fatigue tester of roll bearing

Country Status (1)

Country Link
JP (1) JPS63177035A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5192371A (en) * 1991-05-21 1993-03-09 Asm Japan K.K. Substrate supporting apparatus for a CVD apparatus
JP2003031647A (en) 2001-07-19 2003-01-31 Hitachi Kokusai Electric Inc Substrate processing apparatus and method of manufacturing semiconductor device
KR101320199B1 (en) * 2012-02-28 2013-10-29 현대제철 주식회사 Jig for fixing specimens of vibration testing machine
DE102014103299B4 (en) * 2014-03-12 2021-07-22 Spektra Schwingungstechnik Und Akustik Gmbh Dresden Vibration exciter with load compensation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5264952A (en) * 1975-11-25 1977-05-28 Nippon Seiko Kk Device for measuring performance of pivotal bearing
JPS5760244A (en) * 1980-09-29 1982-04-12 Hitachi Seiko Ltd Hynamic characteristic measuring apparatus for single antifriction bearing

Also Published As

Publication number Publication date
JPS63177035A (en) 1988-07-21

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