JPS6337886B2 - - Google Patents
Info
- Publication number
- JPS6337886B2 JPS6337886B2 JP6542180A JP6542180A JPS6337886B2 JP S6337886 B2 JPS6337886 B2 JP S6337886B2 JP 6542180 A JP6542180 A JP 6542180A JP 6542180 A JP6542180 A JP 6542180A JP S6337886 B2 JPS6337886 B2 JP S6337886B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- friction torque
- load
- measured
- axle box
- 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
- 238000005259 measurement Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Description
【発明の詳細な説明】
この発明は、すべり軸受やころがり軸受の起動
摩擦トルクや回転摩擦トルクを比較的簡単な機構
で測定する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for measuring starting friction torque and rotational friction torque of a sliding bearing or a rolling bearing with a relatively simple mechanism.
従来の軸受の摩擦トルク測定装置においては、
例えば回転機構に装着された被測定軸受に対し
て、空気軸受のような摩擦トルクが無視出来るよ
うな軸受を使用し、被測定軸受の摩擦トルクを、
トルクアーム等を介して力センサのような測定器
により測定することができたが、空気軸受装置が
高価となつたり、被測定軸受にかける負荷の大き
さを変更し難い欠点があつた。 In conventional bearing friction torque measurement devices,
For example, for a bearing to be measured attached to a rotating mechanism, use a bearing such as an air bearing whose frictional torque can be ignored, and calculate the frictional torque of the bearing to be measured.
Measurement could be performed using a measuring device such as a force sensor via a torque arm or the like, but the problem was that the air bearing device was expensive and that it was difficult to change the magnitude of the load applied to the bearing to be measured.
この発明は、上記のような欠点を除去するため
になされたもので、支持軸に取付けられた被測定
軸受の回転に伴う摩擦トルクまたは起動時の摩擦
トルクを、試験軸箱とトルクアームと力センサを
用いて測定する装置において、試験軸箱と負荷軸
箱とを摩擦トルクの等しい複数個の負荷軸受およ
びこれを保持する中間軸箱を直列に介して保持
し、中間軸箱と負荷軸箱どうし動力断続機構によ
り接続および切離しを行わせたとき摩擦トルクを
それぞれ測定し、被測定軸受のみ摩擦トルクを演
算することを特徴とする軸受の摩擦トルク測定装
置である。 This invention was made in order to eliminate the above-mentioned drawbacks, and it is possible to calculate the friction torque caused by the rotation of the bearing to be measured attached to the support shaft or the friction torque at the time of startup by comparing the force between the test shaft box and the torque arm. In a device that uses sensors to measure, a test axle box and a load axle box are held in series through a plurality of load bearings with equal friction torque and an intermediate axle box that holds the same, and the intermediate axle box and the load axle box are connected in series. This is a friction torque measuring device for a bearing, characterized in that the friction torque is measured when the two are connected and disconnected by a power intermittent mechanism, and the friction torque is calculated only for the bearing to be measured.
上記軸受の摩擦トルク測定装置においては、入
手が容易な複数個の同一摩擦トルクの軸受を負荷
軸受として使用し、しかもこれらの軸受の摩擦ト
ルクは最終的にはキヤンセルできるので、前記負
荷軸受の摩擦トルクの影響を受けることがない。
また本測定機は固定側に荷重をかけることができ
るので、荷重の大きさは自由に選ぶことができ、
特に大な荷重まで負荷させることが可能である。 In the bearing friction torque measuring device described above, a plurality of easily available bearings with the same friction torque are used as load bearings, and since the friction torque of these bearings can be ultimately canceled, the friction of the load bearings can be canceled. Not affected by torque.
In addition, this measuring device can apply a load to the fixed side, so the size of the load can be freely selected.
It is possible to apply particularly large loads.
次にこの発明の一実施例を図を参照しながら説
明する。１は支持軸で、機台に設けられた軸箱１
１に支持軸受１２，１３を介して取付けられ、そ
の一端側には接手を介して、モータ１４のような
回転駆動源が接続し、他端側には被測定軸受２を
着脱可能に支承するための支承部１５が設けられ
ている。この実施例においては被測定軸受２とし
てはラジアル玉軸受を選んだが、このラジアル玉
軸受の外輪２１に嵌合するように設けられた試験
軸箱３には、その外径部にトルクアーム４が設け
られ、このトルクアーム４の先端側は例えば歪ゲ
ージを貼付した金属板のような力センサ５と接触
するように構成されている。 Next, an embodiment of the present invention will be described with reference to the drawings. 1 is the support shaft, and the shaft box 1 is installed on the machine base.
1 via support bearings 12 and 13, one end thereof is connected to a rotational drive source such as a motor 14 via a joint, and the other end removably supports the bearing to be measured 2. A support portion 15 is provided for the purpose. In this example, a radial ball bearing was selected as the bearing 2 to be measured, and a test shaft box 3 provided to fit into the outer ring 21 of this radial ball bearing had a torque arm 4 on its outer diameter. The distal end side of the torque arm 4 is configured to come into contact with a force sensor 5 such as a metal plate to which a strain gauge is attached.
上記の試験軸箱３は図において上方側には第１
の負荷軸受としてのスラスト玉軸受６に一方のリ
ングが取付けられ、このスラスト玉軸受６の他方
のリングは、中間軸箱７に嵌合しており、中間軸
箱７の上部には第２の負荷軸受としてのスラスト
玉軸受６の一方のリングが装着されている。上記
２個のスラスト玉軸受６は、摩擦トルクの等しい
ものが必要であり、この実施例においては、同じ
大きさのスラスト玉軸受を用いたが、摩擦トルク
の大きさが等しければ必ずしも同じ大きさや、同
形式の軸受を用いる必要はない。 The above test axle box 3 has a first shaft on the upper side in the figure.
One ring is attached to a thrust ball bearing 6 as a load bearing, and the other ring of this thrust ball bearing 6 is fitted into an intermediate shaft box 7, and a second ring is attached to the upper part of the intermediate shaft box 7. One ring of a thrust ball bearing 6 as a load bearing is mounted. The above two thrust ball bearings 6 must have the same friction torque, and in this embodiment, thrust ball bearings of the same size were used, but if the friction torque is equal, they do not necessarily have the same size. , it is not necessary to use bearings of the same type.
図において上段のスラスト玉軸受６の他方のリ
ングは、負荷軸箱８に嵌合しており、この負荷軸
箱８には図示を省略した負荷機構により適宜の負
荷がかけられるように構成され、ピン９にり中間
軸箱７と同時に回転出来、ピン９を中間軸箱７か
ら抜いた状態では、負荷軸箱８と中間軸箱７は方
向は同じでも、負荷軸受を介して残つた回転変位
をする。 The other ring of the upper thrust ball bearing 6 in the figure is fitted into a load axle box 8, and the load axle box 8 is configured so that an appropriate load can be applied by a load mechanism (not shown). The pin 9 can rotate at the same time as the intermediate axle box 7, and when the pin 9 is removed from the intermediate axle box 7, even though the load axle box 8 and the intermediate axle box 7 are in the same direction, the rotational displacement remaining through the load bearing is do.
上記の装置において、図のように被測定軸受２
が支持軸１に取付けられ、試験軸箱３、負荷軸受
６、中間軸箱７、負荷軸箱８が装着され、ピン９
が中間軸箱７に装入された状態で、モータ１４を
駆動し、負荷機構により負荷軸箱８に負荷とかけ
ると、負荷の大きさに応じて、ラジアル玉軸受２
の外輪２１が摩擦によつて回転変位しながらトル
クアームを介して力センサ５を押圧し、回転摩擦
トルクが測定される。 In the above device, as shown in the figure, the bearing to be measured 2
is attached to the support shaft 1, the test axle box 3, load bearing 6, intermediate axle box 7, and load axle box 8 are installed, and the pin 9
is inserted into the intermediate shaft box 7, and when the motor 14 is driven and a load is applied to the load shaft box 8 by the load mechanism, the radial ball bearing 2
The outer ring 21 presses the force sensor 5 via the torque arm while being rotationally displaced by friction, and the rotational friction torque is measured.
この負荷の大きさによる摩擦トルク値の変位は
第２図のT1の線図のようになる。即ちこの場合
は、ピン９により負荷軸箱８と中間軸箱７は、一
体化されて同じ運動をするので、１個だけの負荷
軸受６が摩擦トルク測定値に影響し、被測定軸受
の摩擦トルクに負荷軸受１個の摩擦トルクを加え
た摩擦トルクが測定されたことになる。 The displacement of the friction torque value depending on the magnitude of this load is as shown in the diagram of T 1 in FIG. 2. That is, in this case, the load axle box 8 and the intermediate axle box 7 are integrated by the pin 9 and move in the same manner, so only one load bearing 6 affects the friction torque measurement value, and the friction of the bearing to be measured increases. The friction torque obtained by adding the friction torque of one load bearing to the torque is measured.
次にピン９を中間軸箱７より引き抜き、負荷軸
受６が２個共、摩擦トルク測定に関与する状態の
摩擦トルクを測定すると、負荷に対する摩擦トル
クの大きさは、第２図T2のように図示される。 Next, when the pin 9 is pulled out from the intermediate shaft box 7 and the friction torque is measured with both load bearings 6 participating in the friction torque measurement, the magnitude of the friction torque with respect to the load is as shown in Figure 2 T 2 . Illustrated in
上記の二つの測定値より被測定軸受のみの摩擦
トルク測定値Ｔを求めるには、負荷軸受として同
一摩擦トルク特性のスラスト玉軸受を使用した場
合、この１個のスラスト玉軸受の摩擦トルクをＡ
とすれば、スラスト玉軸受２個の場合の測定値
T2は
T2＝Ｔ＋Ａ＋Ａ ……(1)
となり、スラスト玉軸受を１個使用した場合の摩
擦トルク装定値T1は
T1＝Ｔ＋Ａ ……(2)
となるから、(1)、(2)式より
Ｔ＝2T1−T2
となり、前記二つの測定値をもとに被測定軸受の
みの摩擦トルクを求めることができる、これを図
示すれば第２図のＴのようになる。 To find the friction torque measurement value T of only the bearing to be measured from the above two measurement values, if a thrust ball bearing with the same friction torque characteristics is used as the load bearing, the friction torque of this single thrust ball bearing is A.
Then, the measured value for two thrust ball bearings is
T 2 becomes T 2 = T + A + A ... (1), and the friction torque setting value T 1 when one thrust ball bearing is used is T 1 = T + A ... (2), so (1), (2 ) From the equation, T=2T 1 -T 2 , and based on the above two measured values, the friction torque of only the bearing to be measured can be determined, which is illustrated as T in FIG. 2.
上記の実施例においては、負荷軸受が２個の場
合を示したが、これを３個、あるいは４個と云う
ように増加すれば、被測定軸受の摩擦トルクとの
差が明瞭になるので、被測定軸受の摩擦トルクが
小さい場合に有効であるが測定装置はやゝ複雑な
構造となる。 In the above example, the case where there are two load bearings is shown, but if this number is increased to three or four, the difference with the friction torque of the bearing to be measured becomes clear. This is effective when the friction torque of the bearing to be measured is small, but the measuring device has a rather complicated structure.
また回転伝達のための動力断続機構として、上
記の実施例においてはピンを用いたが、断続を自
動的に行うために特殊のクラツチを用いてもよ
い。 Further, although a pin is used in the above embodiment as a power disconnection mechanism for transmitting rotation, a special clutch may be used to automatically disconnect and disconnect the power.
さらに上記の実施例においては、被測定軸受と
してラジアル玉軸受を選んだが、その他のころが
り軸受やすべり軸受においても、同様の考え方
で、摩擦トルクを測定演算することができる。 Further, in the above embodiment, a radial ball bearing was selected as the bearing to be measured, but the friction torque can be measured and calculated using the same concept for other rolling bearings and sliding bearings.
この発明の摩擦トルク測定装値は、入手が容易
な複数個の同一摩擦トルクの軸受を負荷軸受とし
て使用でき、しかもこれらの軸受の摩擦トルク
は、最終的にはキヤンセルできるので、前記負荷
軸受の摩擦トルクは、被測定軸受の摩擦トルク測
定に影響を与えない。従つて被測定軸受の摩擦ト
ルクを正確に測定することができる。 The friction torque measurement device of the present invention can use a plurality of easily available bearings with the same friction torque as load bearings, and the friction torque of these bearings can be ultimately canceled. The friction torque does not affect the friction torque measurement of the bearing to be measured. Therefore, the friction torque of the bearing to be measured can be accurately measured.
しかも本測定装値は、被測定軸受に荷重を負荷
する場合、固定側に負荷することができるので、
荷重の大きさは自由に選ぶことができ、大きな荷
重まで負荷させることが可能であり、測定も容易
である。 Moreover, when applying a load to the bearing to be measured, this measurement device value can be applied to the fixed side.
The magnitude of the load can be freely selected, large loads can be applied, and measurement is easy.
その上、この測定装置は従来の測定装置のよう
に高価な空気軸受を使用していないので安価であ
る。 Moreover, this measuring device is inexpensive because it does not use expensive air bearings like conventional measuring devices.
第１図はこの発明の一実施例を示す装置の一部
縦断の正面図、第２図は負荷荷重の変化に対する
トルクの大きさを示すグラフである。
符号の説明、１は支持軸、２は被測定軸受、３
は試験軸箱、４はトルクアーム、５は力センサ、
６は負荷軸受、７は中間軸箱、８は負荷軸箱、９
はピン、１４はモータ。
FIG. 1 is a partially longitudinal front view of a device showing an embodiment of the present invention, and FIG. 2 is a graph showing the magnitude of torque with respect to changes in applied load. Explanation of symbols: 1 is the support shaft, 2 is the bearing to be measured, 3
is the test shaft box, 4 is the torque arm, 5 is the force sensor,
6 is a load bearing, 7 is an intermediate axle box, 8 is a load axle box, 9
is the pin, and 14 is the motor.
Claims (1)
起動時または回転時の摩擦トルクを、被測定軸受
に嵌合させた試験軸箱とトルクアームを介して力
センサにより測定する装置において、前記試験軸
箱と負荷軸箱との間に設けられた複数個の摩擦ト
ルクの等しい負荷軸受と、この負荷軸受を保持す
るために設けられた中間軸箱と、前記中間軸箱よ
りの回転力を負荷軸箱に断続させるための動力断
続機構とよりなり、回転力の断、続時における摩
擦トルクを力センサによりそれぞれ測定して被測
定軸受のみの摩擦トルクを演算することを特徴と
する軸受の摩擦トルク測定装置。1. In a device that measures friction torque during startup or rotation of a bearing to be measured mounted on a rotatable support shaft using a force sensor via a test shaft box and a torque arm fitted to the bearing to be measured, A plurality of load bearings with equal friction torque are provided between the test axle box and the load axle box, an intermediate axle box is provided to hold the load bearings, and the rotational force from the intermediate axle box is A bearing comprising a power intermittent mechanism for discontinuing the power to the load shaft box, and calculating the friction torque of only the bearing to be measured by measuring the friction torque when the rotational force is interrupted and continued using a force sensor. Friction torque measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6542180A JPS56162024A (en) | 1980-05-19 | 1980-05-19 | Measuring device for bearing torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6542180A JPS56162024A (en) | 1980-05-19 | 1980-05-19 | Measuring device for bearing torque |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56162024A JPS56162024A (en) | 1981-12-12 |
| JPS6337886B2 true JPS6337886B2 (en) | 1988-07-27 |
Family
ID=13286572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6542180A Granted JPS56162024A (en) | 1980-05-19 | 1980-05-19 | Measuring device for bearing torque |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56162024A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59138746U (en) * | 1983-03-07 | 1984-09-17 | トヨタ自動車株式会社 | Bearing friction loss measuring device |
| JP4759247B2 (en) * | 2004-11-05 | 2011-08-31 | 株式会社やまと商社 | Torque measuring instrument for friction rotating parts |
| CN102564672B (en) * | 2012-02-28 | 2017-02-15 | 昆山爱都思电子科技有限公司 | Constant torque servo amplifier |
| CN106225966A (en) * | 2016-08-31 | 2016-12-14 | 浙江鼎锋流体自控设备有限公司 | Simulation torque load testing device |
| CN109520735B (en) * | 2018-10-26 | 2021-01-15 | 中国第一汽车股份有限公司 | Bearing loss test system |
| US10883900B2 (en) * | 2018-11-29 | 2021-01-05 | Kaydon Ring & Seal, Inc. | Shaft assembly for a high-speed test rig |
| DE102018132582A1 (en) * | 2018-12-18 | 2020-06-18 | Schaeffler Technologies AG & Co. KG | Test bench and method for testing a bearing |
-
1980
- 1980-05-19 JP JP6542180A patent/JPS56162024A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56162024A (en) | 1981-12-12 |
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