JP2015068667A - Rotation testing apparatus - Google Patents

Rotation testing apparatus Download PDF

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JP2015068667A
JP2015068667A JP2013201149A JP2013201149A JP2015068667A JP 2015068667 A JP2015068667 A JP 2015068667A JP 2013201149 A JP2013201149 A JP 2013201149A JP 2013201149 A JP2013201149 A JP 2013201149A JP 2015068667 A JP2015068667 A JP 2015068667A
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rolling
rolling bearings
bearing
drive roll
roll
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JP6217284B2 (en
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潤一 久保
Junichi Kubo
潤一 久保
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JTEKT Corp
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JTEKT Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a compact and efficient rotation testing apparatus for rolling bearings.SOLUTION: There is provided a rotation testing apparatus 1 for rolling bearings 10 for confirming service life and the like of the rolling bearings 10 each having an outer ring 11 as a rotation ring and an inner ring 12 as a fixed ring. The rotation testing apparatus 1 comprises a drive roll 30 whose outer circumference comes in contact with an outer circumference 11b of the outer ring 11 to drive the outer ring 11 and also apply a load to the rolling bearings 10. Further, two bearing support units 40 for supporting the rolling bearings 10 are disposed separately from each other in a load direction, and the drive roll 30 simultaneously drives the respective outer rings 11 of the two rolling bearings 10 supported by the two bearing support units 40.

Description

本発明は、回転試験装置に係わり、より詳しくは、転がり軸受の外輪を回転させて、前記転がり軸受の寿命等の特性を確認する、転がり軸受用の回転試験装置に関する。   The present invention relates to a rotation test apparatus, and more particularly, to a rotation test apparatus for a rolling bearing in which characteristics such as the life of the rolling bearing are confirmed by rotating an outer ring of the rolling bearing.

ステンレス鋼板等の硬質の鋼板の圧延にはクラスターミル等の多段圧延機が用いられる。クラスターミルは小径のワークロールを中間ロールを介してバックアップロールで支持する構造になっている。前記バックアップロールとして、外輪の外周が前記中間ロールの外周に直接転がり接触する転がり軸受がある。（特許文献１参照）
上述の転がり軸受用の回転試験装置として、外輪の外周を転がり接触によって駆動する図３に示す構造の回転試験装置がある。 A multi-stage rolling mill such as a cluster mill is used for rolling a hard steel plate such as a stainless steel plate. The cluster mill has a structure in which a small-diameter work roll is supported by a backup roll via an intermediate roll. As the backup roll, there is a rolling bearing in which the outer circumference of the outer ring is in rolling contact with the outer circumference of the intermediate roll. (See Patent Document 1)
As the above-described rotation test apparatus for rolling bearings, there is a rotation test apparatus having a structure shown in FIG. 3 that drives the outer periphery of the outer ring by rolling contact.

特開平２００４−２８２１７号公報Japanese Patent Laid-Open No. 2004-28217

図３に示す構造の回転試験装置１００は転がり軸受１１０の軸受寿命や、外輪１１１の外輪外周１１１ｂの耐久性を確認する回転試験装置である。回転試験装置１００において、転がり軸受１１０は、軸線が、駆動ロール１３０の中心から荷重方向に延びる直線上を通り、駆動ロール１３０の軸線と平行に配置され、軸受支持部１４０に配置された固定軸１４１に内輪１１２が固定されている。   The rotation test apparatus 100 having the structure shown in FIG. 3 is a rotation test apparatus that confirms the bearing life of the rolling bearing 110 and the durability of the outer ring 111 outer periphery 111b. In the rotation test apparatus 100, the rolling bearing 110 has a fixed shaft disposed on the bearing support 140, the axis of which is arranged in parallel with the axis of the drive roll 130, passing through a straight line extending in the load direction from the center of the drive roll 130. The inner ring 112 is fixed to 141.

駆動ロール１３０はロール外周１３１が、転がり軸受１１０の外輪外周１１１ｂに接し、転がり接触によって転がり軸受１１０の外輪１１１を回転させる。また、駆動ロール１３０は油圧シリンダー１５０によって、図中下方に押下げられ、転がり軸受１１０の外輪１１１に負荷を与える。   The drive roll 130 has a roll outer periphery 131 that is in contact with an outer ring outer periphery 111b of the rolling bearing 110, and rotates the outer ring 111 of the rolling bearing 110 by rolling contact. The drive roll 130 is pushed downward in the figure by the hydraulic cylinder 150 and applies a load to the outer ring 111 of the rolling bearing 110.

前述のごとく、図３に示す構造の従来の回転試験装置１００は、１個の駆動ロール１３０で１個の転がり軸受１１０の回転、負荷を行うため、１台の回転試験装置で１個の転がり軸受１１０の回転試験しか実施できず、効率が悪い。また、同時に、２個の転がり軸受１１０の回転試験を行うには、２台の回転試験装置１００が必要になり、設置には大きなスペースが必要である。   As described above, the conventional rotation test apparatus 100 having the structure shown in FIG. 3 rotates and loads one rolling bearing 110 with one drive roll 130, so that one rolling test apparatus performs one rolling. Only the rotation test of the bearing 110 can be performed, and the efficiency is poor. At the same time, in order to perform a rotation test of the two rolling bearings 110, two rotation test apparatuses 100 are required, and a large space is required for installation.

本発明は、上述した問題点を解決するためになされたもので、小型で効率よく転がり軸受の寿命等を確認する回転試験装置を提供することを目的としている。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a rotation test apparatus that is small and efficiently checks the life of a rolling bearing.

上記の課題を解決するため、請求項１に係る発明の構成上の特徴は、回転輪としての外輪および固定輪としての内輪を有する転がり軸受の寿命等を確認する、転がり軸受用の回転試験装置であって、外周を前記外輪の外周に接し、前記外輪を駆動するとともに、前記転がり軸受に荷重を負荷する駆動ロールを有し、前記転がり軸受を支持する２個の軸受支持部が荷重方向に離れて配置され、前記駆動ロールが２個の前記軸受支持部に支持された２個の前記転がり軸受のそれぞれの前記外輪を同時に駆動することである。   In order to solve the above-mentioned problem, the structural feature of the invention according to claim 1 is that a rotation test apparatus for a rolling bearing that confirms the life of a rolling bearing having an outer ring as a rotating ring and an inner ring as a fixed ring. The outer ring is in contact with the outer ring, drives the outer ring, and has a drive roll that loads the rolling bearing, and the two bearing support portions that support the rolling bearing are in the load direction. The driving rolls are disposed at a distance from each other and simultaneously drive the outer rings of the two rolling bearings supported by the two bearing support portions.

本発明の回転試験装置によれば、１個の駆動ロールのみで、同時に２個の前記転がり軸受の駆動と負荷を行うことができる。このため前記転がり軸受用の回転試験を効率的に実施できる。また、２台の回転試験装置を使用する場合にくらべ、小さなスペースに設置が可能である。   According to the rotation test apparatus of the present invention, it is possible to simultaneously drive and load the two rolling bearings with only one driving roll. For this reason, the rotation test for the rolling bearing can be carried out efficiently. Moreover, it can be installed in a small space as compared with the case of using two rotation test apparatuses.

上記の課題を解決するため、請求項２に係る発明の構成上の特徴は、２個の前記転がり軸受の中心は、前記駆動ロールの中心から荷重方向に対して、それぞれ一方側に６０°以上傾いた線上、他方側に６０°以上傾いた線上に配置されたことである。   In order to solve the above problems, the structural feature of the invention according to claim 2 is that the center of the two rolling bearings is 60 ° or more on one side with respect to the load direction from the center of the drive roll. It is arranged on the inclined line and on the line inclined at 60 ° or more on the other side.

本発明の回転試験装置によれば、前記駆動ロールの外周と２個の前記転がり軸受のそれぞれの外周との接点におけるそれぞれの前記転がり軸受の半径方向の負荷は、前記駆動ロール荷重方向の荷重より大きくなる。すなわち、１個の前記駆動ロールによって、１個の前記転がり軸受に与える負荷と同等の負荷を２個の前記転がり軸受に負荷することができる。   According to the rotation test apparatus of the present invention, the radial load of each of the rolling bearings at the contact point between the outer periphery of the driving roll and the outer periphery of each of the two rolling bearings is greater than the load in the driving roll load direction. growing. That is, the load equivalent to the load given to the one rolling bearing can be applied to the two rolling bearings by one driving roll.

本発明によれば、小型で効率よく転がり軸受の寿命等を確認する回転試験装置を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the rotation test apparatus which confirms the lifetime etc. of a rolling bearing small and efficiently can be provided.

本発明の実施形態の回転試験装置の構成を説明する説明図である。It is explanatory drawing explaining the structure of the rotation test apparatus of embodiment of this invention. 図１に示す本発明の実施形態の回転試験装置のＡ−Ａ断面図である。It is AA sectional drawing of the rotation test apparatus of embodiment of this invention shown in FIG. 従来の回転試験装置の構成を説明する説明図である。It is explanatory drawing explaining the structure of the conventional rotation test apparatus.

この発明の実施形態の回転試験装置を、以下図面を参照して説明する。
図１は、本発明の実施形態の回転試験装置の構成を説明する説明図である。図２は図１に示す本発明の実施形態の回転試験装置のＡ−Ａ断面図である。 A rotation test apparatus according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory view illustrating the configuration of a rotation test apparatus according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the rotation test apparatus according to the embodiment of the present invention shown in FIG.

転がり軸受１０は、図２に示すように外周に外輪外周１１ｂ、内周に外輪軌道１１ａが形成された外輪１１と、外周に内輪軌道１２ａを有する内輪１２と、外輪軌道１１ａと内輪軌道１２aの間に転動自在に配置された転動体としての複数のころ１３と、複数のころ１３を保持する保持器１４と、外輪１１および内輪１２の間に配置された２個のシール部材１５と、で構成されている。   As shown in FIG. 2, the rolling bearing 10 includes an outer ring 11 having an outer ring outer periphery 11b on the outer periphery and an outer ring track 11a formed on the inner periphery, an inner ring 12 having an inner ring track 12a on the outer periphery, an outer ring track 11a and an inner ring track 12a. A plurality of rollers 13 as rolling elements disposed so as to freely roll between, a retainer 14 that holds the plurality of rollers 13, and two seal members 15 disposed between the outer ring 11 and the inner ring 12, It consists of

図１に示す回転試験装置１は転がり軸受１０の軸受寿命等の耐久性を確認する回転試験装置である。
図１の上下方向は実際の回転試験装置の垂直方向上下方向を示している。以下垂直方向上下方向を上下方向、垂直方向上方向を上方向、垂直方向下方向を下方向と称する。また、図１の下方向白抜き矢印は荷重方向を示している。 A rotation test apparatus 1 shown in FIG. 1 is a rotation test apparatus for confirming durability such as a bearing life of a rolling bearing 10.
The vertical direction in FIG. 1 indicates the vertical direction of the actual rotation test apparatus. Hereinafter, the vertical direction is referred to as the vertical direction, the vertical direction as the upward direction, and the vertical direction as the downward direction. Moreover, the downward white arrow in FIG. 1 indicates the load direction.

図１、図２に示すように、回転試験装置１は本体部２０と、本体部２０に上下に移動可能に取付けられた駆動ロール３０と、駆動ロール３０下方の本体部２０に離れて取付けられ、それぞれ試料としての転がり軸受１０を支持する２個の軸受支持部４０と、駆動ロール３０を圧下するロール圧下手段としての油圧シリンダー５０と、駆動ロール３０を回転させる回転駆動手段６０と、転がり軸受１０の状態を測定する測定手段７０と、で構成される。   As shown in FIGS. 1 and 2, the rotation test apparatus 1 is attached to a main body 20, a drive roll 30 attached to the main body 20 so as to be movable up and down, and a main body 20 below the drive roll 30. , Two bearing support portions 40 each supporting a rolling bearing 10 as a sample, a hydraulic cylinder 50 as a roll rolling-down means for rolling down the driving roll 30, a rotation driving means 60 for rotating the driving roll 30, and a rolling bearing Measuring means 70 for measuring ten states.

本体部２０は台座部２１と、台座部２１に垂直に固定された柱部２２と、柱部２２の上端部から水平に延びるアーム部２３と、柱部２２の上下方向中間部に取付けられたロール支持部２４とを有している。ロール支持部２４は上下方向に移動可能に柱部２２に案内されている。   The main body 20 is attached to a pedestal 21, a column 22 fixed perpendicularly to the pedestal 21, an arm 23 extending horizontally from the upper end of the column 22, and an intermediate portion in the vertical direction of the column 22. And a roll support 24. The roll support portion 24 is guided by the column portion 22 so as to be movable in the vertical direction.

ロール支持部２４は下方向端部に、駆動ロール３０を軸線方向両側から支持する２個のハウジング部２５を有し、２個のハウジング部２５には、水平方向同一軸線上にそれぞれロール支持軸受２６が配置されている。ロール支持部２４は柱部２２に接して上下方向に移動可能に配置されている。   The roll support portion 24 has two housing portions 25 for supporting the drive roll 30 from both sides in the axial direction at the lower end portion, and the two housing portions 25 are respectively provided with roll support bearings on the same horizontal axis. 26 is arranged. The roll support part 24 is arranged so as to be movable in the vertical direction in contact with the pillar part 22.

駆動ロール３０は炭素鋼等の鋼材からなり、円筒形状に形成されている。駆動ロール３０の中心部には、軸線方向両側に突出する軸部３２が、軸線方向に貫通して固定されている。軸部３２の両側突出部はそれぞれロール支持軸受２６に回転自在に支持され、軸部３２の一方側の突出部はロール支持軸受２６より駆動ロール３０と反対側にさらに突出し、駆動用のプーリー３３が外嵌して固定されている。   The drive roll 30 is made of a steel material such as carbon steel and is formed in a cylindrical shape. A shaft portion 32 that protrudes on both sides in the axial direction is fixed to the central portion of the drive roll 30 so as to penetrate in the axial direction. The protruding portions on both sides of the shaft portion 32 are rotatably supported by the roll support bearing 26, and the protruding portion on one side of the shaft portion 32 further protrudes on the opposite side of the drive roll 30 from the roll support bearing 26, and a driving pulley 33. Is fixed by external fitting.

軸受支持部４０は方形の基部４１と基部４１の上面に転がり軸受１を収容する空間をはさんで、対峙して配置された２箇所の耳部４２と、軸受支持軸４３と、を有している。
耳部４２は、上方端部に軸受支持軸４３を収容する、矩形の軸受溝４４が上方に開放して形成されている。 The bearing support portion 40 has a square base portion 41, two ear portions 42 disposed opposite to each other across a space for accommodating the rolling bearing 1 on the upper surface of the base portion 41, and a bearing support shaft 43. ing.
The ear portion 42 is formed with a rectangular bearing groove 44 that accommodates the bearing support shaft 43 at an upper end portion and is opened upward.

軸受支持軸４３は、軸線方向中間部に転がり軸受１０の内輪１２が外嵌された嵌合部４３ａ、嵌合部４３ａの両側端部側に支持部４３ｂを有し、それぞれ支持部４３ｂは軸線に平行な同一平面上に平面４３ｃを有している。転がり軸受１０が組付けられた軸受支持軸４３はそれぞれの平面４３ｃを両側の耳部４２の軸受溝４４の底面に接して耳部４２の軸受溝４４に駆動ロール３０の軸線と平行に収容されている。   The bearing support shaft 43 has a fitting portion 43a in which the inner ring 12 of the rolling bearing 10 is externally fitted in the middle portion in the axial direction, and support portions 43b on both side ends of the fitting portion 43a. The plane 43c is on the same plane parallel to the. The bearing support shafts 43 to which the rolling bearings 10 are assembled are accommodated in the bearing grooves 44 of the ear portions 42 in parallel with the axis of the drive roll 30 with their respective flat surfaces 43c contacting the bottom surfaces of the bearing grooves 44 of the ear portions 42 on both sides. ing.

転がり軸受１０が軸受支持軸４３に組みこまれた２個の軸受支持部４０は、転がり軸受１０の軸線が、駆動ロール３０の軸線に直角な面に配置されるとともに、駆動ロール３０の軸線から荷重方向に向く線に対してそれぞれ一方側にα、他方側にβ傾いた線上に位置する様に配置され、台座部２１に固定されている。本実施形態においてα＝６０°、β＝６０°である。   The two bearing support portions 40 in which the rolling bearing 10 is incorporated in the bearing support shaft 43 are arranged such that the axis of the rolling bearing 10 is disposed on a plane perpendicular to the axis of the drive roll 30 and from the axis of the drive roll 30. It is arranged so as to be positioned on a line inclined α on one side and β on the other side with respect to the line facing the load direction, and is fixed to the pedestal 21. In this embodiment, α = 60 ° and β = 60 °.

油圧シリンダー５０は、これのロット５１が下方向に向けて本体部２０のアーム部２３に垂直に固定され、図示しない油圧発生装置より供給される油圧によって、ロット５１を押し下げ、駆動ロール３０を支持するロール支持部２４を本体部２０の柱部２２に沿って荷重方向へ圧下する。   In the hydraulic cylinder 50, the lot 51 is fixed vertically to the arm portion 23 of the main body portion 20 in the downward direction, and the lot 51 is pushed down by the hydraulic pressure supplied from a hydraulic pressure generator (not shown) to support the drive roll 30. The roll support part 24 to be rolled is pressed down in the load direction along the column part 22 of the main body part 20.

回転駆動手段６０はモーター６１と、ベルト６２、アイドルプーリー６３とを有し、ベルト６２をモーター軸とプーリー３３とアイドルプーリー６３とに巻き掛け、駆動ロール３０に回転を与えている。アイドルプーリー６３は、柱部２２に上下方向に移動可能に支持され、かつ下方向へ弾性力が付与され、プーリー３３の位置の変化に応じて上下するようになっている。   The rotation driving means 60 includes a motor 61, a belt 62, and an idle pulley 63. The belt 62 is wound around the motor shaft, the pulley 33, and the idle pulley 63, and the drive roll 30 is rotated. The idle pulley 63 is supported by the column portion 22 so as to be movable in the vertical direction, is given an elastic force in the downward direction, and moves up and down in accordance with a change in the position of the pulley 33.

図２に示すように転がり軸受１０の振動、温度等の状態量を測定する測定手段７０は、軸受支持軸４３の端部に固定されたセンサー７１と、図示しない演算、表示部と、センサー７１と演算、表示部とを結ぶコード７２とで構成されている。   As shown in FIG. 2, the measuring means 70 for measuring state quantities such as vibration and temperature of the rolling bearing 10 includes a sensor 71 fixed to the end of the bearing support shaft 43, an unshown calculation / display unit, and a sensor 71. And a code 72 connecting the calculation and display unit.

前述の構成によって、２個の転がり軸受１０はそれぞれの軸線が、駆動ロール３０の軸線に直角な面に配置されるとともに、駆動ロール３０の軸線から荷重方に向く線に対してそれぞれ一方側に６０°、他方側に６０°傾いた線上に、駆動ロール３０の軸心と平行に配置されている。すなわち駆動ロール３０の外周３１と、転がり軸受１０の外輪外周１１ｂは、駆動ロール３０の軸線に直角な面において、駆動ロール３０の軸線から荷重方に向く線に対してそれぞれ一方側に６０°、他方側に６０°傾いた線上で接触する。   With the above-described configuration, the two rolling bearings 10 have their axes arranged on a plane perpendicular to the axis of the drive roll 30 and on one side with respect to the line from the axis of the drive roll 30 toward the load. It is arranged parallel to the axis of the drive roll 30 on a line inclined at 60 ° and 60 ° on the other side. That is, the outer periphery 31 of the drive roll 30 and the outer ring outer periphery 11b of the rolling bearing 10 are each 60 ° on one side with respect to a line extending from the axis of the drive roll 30 to the load direction on a plane perpendicular to the axis of the drive roll 30. It contacts the other side on a line inclined by 60 °.

この状態で、駆動ロール３０の圧下によって、２個の転がり軸受１０に、荷重を与えると同時に、駆動ロール３０の回転によって、駆動ロール３０の外周３１と、２個の転がり軸受１０の外輪外周１１ｂとの摩擦により転がり軸受１０の外輪１１に回転を与えることができる。このとき、駆動ロール３０と、２個の転がり軸受１０のそれぞれの外輪外周１１ｂとの接触点に作用する力Ｐは、圧下による荷重方向の力をＦとすると、Ｐ＝（Ｆ／２）／ｃｏｓ６０°となる。すなわちＰ＝Ｆとなり、それぞれの転がり軸受１０の外輪外周１１ｂとの接触点に作用する力Ｐは、圧下による荷重方向の力Ｆに等しい。   In this state, a load is applied to the two rolling bearings 10 by the reduction of the driving roll 30, and at the same time, the outer circumference 31 of the driving roll 30 and the outer ring outer circumference 11 b of the two rolling bearings 10 are rotated by the rotation of the driving roll 30. Rotation can be applied to the outer ring 11 of the rolling bearing 10 due to the friction between the rolling bearing 10 and the outer ring 11. At this time, the force P acting on the contact point between the drive roll 30 and each outer ring outer periphery 11b of the two rolling bearings 10 is P = (F / 2) / cos 60 °. That is, P = F, and the force P acting on the contact point with the outer ring outer periphery 11b of each rolling bearing 10 is equal to the force F in the load direction due to the reduction.

上述のごとく本実施形態の回転試験装置１によると、２個の転がり軸受１０に同時に荷重方向の力Ｆに等しい力Ｐを負荷し、回転させ、２個の転がり軸受１０の振動、温度等の状態量を測定することにより、２個転がり軸受１０の寿命等を確認することが可能である。すなわち、本実施形態の回転試験装置１は従来２台の回転試験機装置が必要であった２個の転がり軸受の寿命等を確認する回転試験を、１台で実施でき、小型化、効率化が図られている。   As described above, according to the rotation test apparatus 1 of the present embodiment, the two rolling bearings 10 are simultaneously loaded with the force P equal to the force F in the load direction, rotated, and the vibration, temperature, etc. of the two rolling bearings 10 are changed. By measuring the state quantity, it is possible to confirm the life of the two rolling bearings 10. That is, the rotation test apparatus 1 of the present embodiment can perform a rotation test for confirming the lifespan of two rolling bearings, which conventionally required two rotation tester apparatuses, with a single unit, and can be reduced in size and efficiency. Is planned.

上述の実施形態では、２個の軸受支持部４０は、２個の転がり軸受１の軸線が、駆動ロール３０の軸線に直角な面において、駆動ロール３０の軸線から荷重方に向く線に対してそれぞれ一方側にα、他方側にΒ傾いた線上に位置する様に配置され、α＝６０°、β＝６０°であるが、この発明では、α、βは６０°以外の角度であってもよい。   In the above-described embodiment, the two bearing support portions 40 are in a plane where the axes of the two rolling bearings 1 are perpendicular to the axis of the drive roll 30 and are directed from the axis of the drive roll 30 to the load direction. They are arranged so that they are located on a line inclined to α on one side and inclined to the other side, and α = 60 ° and β = 60 °. In this invention, α and β are angles other than 60 °. Also good.

上述の実施形態では、荷重方向は垂直であるが、この発明では、荷重方向は水平等他の方向であってもよい。   In the above-described embodiment, the load direction is vertical, but in the present invention, the load direction may be other directions such as horizontal.

上述の実施形態では、駆動ロール３０を圧下するロール圧下手段は油圧シリンダー５０であるが、この発明では、圧下手段はコイルばね等の手段であってもよい。   In the above-described embodiment, the roll reduction means for reducing the drive roll 30 is the hydraulic cylinder 50. However, in this invention, the reduction means may be a means such as a coil spring.

上述の実施形態では、２個の転がり軸受１０は転動体が円筒ころである円筒ころ軸受であるが、この発明では、２個の転がり軸受１０は転動体が円すいころである円すいころ軸受等他の形式の転がり軸受であってもよい。   In the embodiment described above, the two rolling bearings 10 are cylindrical roller bearings whose rolling elements are cylindrical rollers. However, in the present invention, the two rolling bearings 10 are tapered roller bearings whose rolling elements are tapered rollers, etc. It may be a rolling bearing of the form

本発明はこうした実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは当然である。   The present invention is not limited to such embodiments, and can naturally be implemented in various modes without departing from the gist of the present invention.

１、１００ ‥ 回転試験装置
１０、１１０ ‥ 転がり軸受
１１、１１１ ‥ 外輪
１２、１１２ ‥ 内輪
２０、１２０ ‥ 駆動ロール
３０、１３０ ‥ 軸受支持部 DESCRIPTION OF SYMBOLS 1,100 ... Rotation test apparatus 10,110 ... Rolling bearing 11, 111 ... Outer ring 12, 112 ... Inner ring 20, 120 ... Drive roll 30, 130 ... Bearing support part

Claims (2)

回転輪としての外輪および固定輪としての内輪を有する転がり軸受の寿命等を確認する、回転試験装置であって、
外周を前記外輪の外周に接し、前記外輪を駆動するとともに、前記転がり軸受に荷重を負荷する駆動ロールを有し、
前記転がり軸受を支持する２個の軸受支持部が荷重方向に離れて配置され、
前記駆動ロールが前記２個の軸受支持部に支持された２個の前記転がり軸受のそれぞれの前記外輪を同時に駆動することを特徴とする回転試験装置。 A rotation test device for confirming the life of a rolling bearing having an outer ring as a rotating ring and an inner ring as a fixed ring,
An outer periphery is in contact with the outer periphery of the outer ring, and the outer ring is driven, and has a drive roll that applies a load to the rolling bearing,
Two bearing support portions for supporting the rolling bearing are disposed apart in the load direction,
The rotation testing apparatus characterized in that the driving roll drives the outer rings of the two rolling bearings supported by the two bearing support portions simultaneously. ２個の前記転がり軸受の中心は、前記駆動ロールの中心から荷重方向に対して、それぞれ一方側に６０°以上傾いた線上、他方側に６０°以上傾いた線上に配置されたことを特徴とする請求項１に記載の回転試験装置。   The centers of the two rolling bearings are arranged on a line inclined by 60 ° or more on one side and a line inclined by 60 ° or more on the other side with respect to the load direction from the center of the drive roll, respectively. The rotation test apparatus according to claim 1.
JP2013201149A 2013-09-27 2013-09-27 Rotation test equipment Expired - Fee Related JP6217284B2 (en)

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CN110470464A (en) * 2019-09-10 2019-11-19 中航飞机起落架有限责任公司 A kind of main wheel turning ground controlling torque measuring device and method
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