JP2009103317A - Rotation sensor installing structure of bearing device for railroad vehicle - Google Patents

Rotation sensor installing structure of bearing device for railroad vehicle Download PDF

Info

Publication number
JP2009103317A
JP2009103317A JP2009027382A JP2009027382A JP2009103317A JP 2009103317 A JP2009103317 A JP 2009103317A JP 2009027382 A JP2009027382 A JP 2009027382A JP 2009027382 A JP2009027382 A JP 2009027382A JP 2009103317 A JP2009103317 A JP 2009103317A
Authority
JP
Japan
Prior art keywords
sensor
support member
rotation
ring
sensor support
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.)
Granted
Application number
JP2009027382A
Other languages
Japanese (ja)
Other versions
JP4997483B2 (en
Inventor
Shinsuke Wai
伸介 和井
Noritsugu Yasuda
典嗣 安田
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.)
JTEKT Corp
Original Assignee
JTEKT Corp
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 JTEKT Corp filed Critical JTEKT Corp
Priority to JP2009027382A priority Critical patent/JP4997483B2/en
Publication of JP2009103317A publication Critical patent/JP2009103317A/en
Application granted granted Critical
Publication of JP4997483B2 publication Critical patent/JP4997483B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rolling bearing device with a rotation sensor capable of restraining a cost increase, by solving problems caused by arranging the sensor in a bearing by arranging the sensor in a bearing end part. <P>SOLUTION: A sensor support member 21 is detachably installed in a case ring 15 of a sealing member 5 by a bolt 26. A pulser ring 20 as a detection object part is installed in a front cover 7. The rotation sensor is installed on the sensor support member 21 so as to be opposed to the pulser ring 20. Both the sensor support member 21 and the pulser ring 20 being the detection object part are arranged outside the bearing more than the sealing member 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、鉄道車両用軸受装置の回転センサ取付け構造に関する。 The present invention relates to a rotation sensor mounting structure for a railway vehicle bearing device .

従来、鉄道車両用軸受装置の回転センサ取付け構造として、固定部材としての外輪、回転部材としての内輪、両輪間に介装された複数の転動体、両輪間の空間を密閉する密封部材および回転部材の回転を検知するセンサを備えており、2分割された内輪の間に、被検出部であるパルサリングが介在され、外輪の軸方向中央部に設けられたセンサ取付孔にセンサが収められているものが知られている(特許文献1参照)。 Conventionally, as a rotation sensor mounting structure for a railway vehicle bearing device, an outer ring as a fixed member, an inner ring as a rotating member, a plurality of rolling elements interposed between both wheels, a sealing member and a rotating member for sealing a space between both wheels A sensor for detecting the rotation of the inner ring is provided, and a pulsar ring, which is a detected part, is interposed between the two divided inner rings, and the sensor is accommodated in a sensor mounting hole provided in the axial center of the outer ring. The thing is known (refer patent document 1).

特開2001−228164号公報(図1など)Japanese Patent Laid-Open No. 2001-228164 (FIG. 1 etc.)

上記従来の鉄道車両用軸受装置の回転センサ取付け構造では、パルサリングおよびセンサ装置を軸受端面でなく軸受内に配置することから、点検等を行いにくい上にトラブルの要因となる恐れがあるという問題があり、また、パルサリングが両輪間に封入されたグリスを撹拌することが発熱の原因となるという問題や、組立時にセンサとパルサリングとの位置合わせを取りにくいこと、センサを挿入する際に異物が軸受内に混入する恐れがあること等の問題があった。 In the conventional rotation sensor mounting structure for a railway vehicle bearing device, since the pulsar ring and the sensor device are arranged in the bearing instead of the bearing end face, there is a problem that it is difficult to perform an inspection and may cause a trouble. There is also a problem that the pulsar ring stirs the grease enclosed between both wheels, which causes heat generation, the alignment between the sensor and the pulsar ring is difficult to assemble during assembly, and foreign objects are bearing when inserting the sensor. There was a problem that it might be mixed in.

そこで、図4に示すように、外輪(41)、回転軸(40)が嵌合固定された内輪(42)、両輪(41)(42)間に介装された複数の転動体(43)、外輪(41)の端部に固定された密封部材(44)および内輪(42)の回転を検知する回転センサ(45)を備えている回転センサ付き転がり軸受装置において、パルサリング(46)を内輪(42)の端部に配置するとともに、センサ(45)を密封部材(44)に固定することが考えられる。しかしながら、この場合、センサ(45)を固定するための台座(47)を密封部材(44)に溶接する必要があるため、溶接に伴うコスト増や半径方向の位置決め精度の低下の問題があり、また、密封部材(44)は、消耗品として扱われるために、軸受の分解時に密封部材(44)がセンサ(45)ごと交換されることになり、不経済であるという問題もあった。   Therefore, as shown in FIG. 4, the outer ring (41), the inner ring (42) to which the rotating shaft (40) is fitted and fixed, and a plurality of rolling elements (43) interposed between the two wheels (41) and (42). In the rolling bearing device with a rotation sensor comprising a sealing member (44) fixed to the end of the outer ring (41) and a rotation sensor (45) for detecting the rotation of the inner ring (42), the pulsar ring (46) is connected to the inner ring. It can be considered that the sensor (45) is fixed to the sealing member (44) while being arranged at the end of (42). However, in this case, since it is necessary to weld the pedestal (47) for fixing the sensor (45) to the sealing member (44), there is a problem of cost increase due to welding and a decrease in positioning accuracy in the radial direction. Further, since the sealing member (44) is handled as a consumable part, the sealing member (44) must be replaced together with the sensor (45) when the bearing is disassembled, which is also uneconomical.

この発明の目的は、センサを軸受端部に配置するとともに、溶接作業を不要とすることにより、センサを軸受内に配置することに伴う問題を解消し、しかも、コスト増を抑えることができる鉄道車両用軸受装置の回転センサ取付け構造を提供することにある。 An object of the present invention is to provide a railway that eliminates the problems associated with arranging the sensor in the bearing and suppresses an increase in cost by arranging the sensor at the bearing end and making welding work unnecessary. An object of the present invention is to provide a rotation sensor mounting structure for a vehicle bearing device .

この発明による鉄道車両用軸受装置の回転センサ取付け構造は、鉄道車両本体に固定される外輪と、鉄道車両の回転軸に固定される内輪と、前記回転軸を回転可能に支承するために前記外輪と前記内輪の間に介装された転動体と、回転センサと、前記回転センサを前記外輪に固定するためのケースリングと、前記回転軸に固定され、前記回転センサと径方向に対向するように配置されたパルサリングとからなり、
前記ケースリングは、前記外輪に嵌合する大径円筒部と、前記大径円筒部に連なり前記外輪の端面にて径方向内側へ垂直に屈曲された段差部と、前記段差部に連なり前記回転軸の軸方向外側へ屈曲された小径円筒部と、前記小径円筒部に連なり径方向内側へ屈曲されたフランジ部とからなり、
前記回転センサは、固定手段にて前記ケースリングの前記フランジ部に固定されることを特徴とするものである。
A rotation sensor mounting structure for a railway vehicle bearing device according to the present invention includes an outer ring fixed to a railway vehicle main body, an inner ring fixed to a rotation shaft of the railway vehicle, and the outer ring for rotatably supporting the rotation shaft. And a rolling element interposed between the inner ring and the inner ring, a rotation sensor, a case ring for fixing the rotation sensor to the outer ring, and fixed to the rotation shaft so as to face the rotation sensor in the radial direction. Consisting of pulsar rings placed in
The case ring includes a large-diameter cylindrical portion that fits into the outer ring, a step portion that is continuous with the large-diameter cylindrical portion and is bent vertically inward in the radial direction at an end surface of the outer ring, and the rotation that continues to the step portion and the rotation. A small-diameter cylindrical portion bent outward in the axial direction of the shaft, and a flange portion connected to the small-diameter cylindrical portion and bent inward in the radial direction,
The rotation sensor is fixed to the flange portion of the case ring by a fixing means .

ここで、「回転センサ」という語は、回転センサ全体を意味する場合と、回転センサの検知部だけを意味する場合があるものとし、市販の回転センサなどで検知部と取付部を有するものについては、その取付部をセンサ支持部材として、これを密封部材に直接取り付けてもよく、取付部とは別のセンサ支持部材を密封部材に取り付けて、このセンサ支持部材に回転センサの取付部を取り付けてもよいものとする。   Here, the term “rotation sensor” may mean the entire rotation sensor or only the detection portion of the rotation sensor, and may be a commercially available rotation sensor or the like having a detection portion and an attachment portion. The mounting part may be directly attached to the sealing member as the sensor supporting member, or a sensor supporting member different from the mounting part may be attached to the sealing member, and the rotational sensor mounting part may be attached to the sensor supporting member. It may be.

センサ支持部材を脱着可能に取り付ける手段がねじ手段であることが好ましい。ねじ手段による回転センサの取付けは、例えば、センサ装置をボルト挿通孔を有するセンサ支持部材およびこれに支持されたセンサによって構成するとともに、軸方向にのびるボルト挿通孔を密封部材にも設け、センサ装置をボルト・ナットによって密封部材の外側面に取り付けることにより容易に行うことができ、また、センサ装置をめねじ部を有するセンサ支持部材およびこれに支持されたセンサによって構成するとともに、軸方向にのびるボルト挿通孔を密封部材に設け、センサ装置をボルトによって密封部材の外側面に取り付けることによっても容易に行うことができる。このようにすると、センサ装置の着脱が極めて容易でかつ精度よく位置決めを行うことができるとともに、密封部材を交換する場合であっても、センサ装置は再使用することができるので、分解、点検および再組立などに際してのメンテナンス性が向上するとともに、コスト的にも非常に経済的なものとなる。   The means for removably attaching the sensor support member is preferably a screw means. The rotation sensor is attached by the screw means. For example, the sensor device is constituted by a sensor support member having a bolt insertion hole and a sensor supported by the sensor device, and a bolt insertion hole extending in the axial direction is also provided in the sealing member. Can be easily attached to the outer surface of the sealing member by bolts and nuts, and the sensor device is constituted by a sensor support member having a female thread portion and a sensor supported by the sensor device, and extends in the axial direction. It can also be easily performed by providing a bolt insertion hole in the sealing member and attaching the sensor device to the outer surface of the sealing member with a bolt. In this way, the sensor device can be attached and detached very easily and accurately positioned, and the sensor device can be reused even when the sealing member is replaced. Maintenance performance at the time of reassembly and the like is improved, and the cost becomes very economical.

この発明の鉄道車両用軸受装置の回転センサ取付け構造によると、パルサリング等の被検出部が、回転部材の端部に設けられるとともに、回転センサを支持するセンサ支持部材が、密封部材に脱着可能に取り付けられているので、センサを軸受内に配置することに伴う問題を解消することができ、しかも、センサを密封部材に取り付けることに伴う溶接が不要となり、軸受の分解時に密封部材がセンサ装置ごと交換されることによる不経済も解消することができる。 According to the rotation sensor mounting structure for a railway vehicle bearing device of the present invention, the detected portion such as the pulsar ring is provided at the end of the rotating member, and the sensor support member that supports the rotation sensor is detachable from the sealing member. As a result, the problems associated with placing the sensor in the bearing can be eliminated, and welding associated with attaching the sensor to the sealing member is not required. It is possible to eliminate the uneconomical consequences of replacement.

図1は、この発明による鉄道車両用軸受装置の回転センサ取付け構造の1実施形態の前半部を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a first half of an embodiment of a rotation sensor mounting structure for a railway vehicle bearing device according to the present invention. 図2は、この発明による鉄道車両用軸受装置の回転センサ取付け構造の要部を示す拡大縦断面図である。FIG. 2 is an enlarged vertical sectional view showing a main part of the rotation sensor mounting structure of the railway vehicle bearing device according to the present invention. 図3は、同正面図である。FIG. 3 is a front view of the same. 図4は、この発明による鉄道車両用軸受装置の回転センサ取付け構造の比較例を示す縦断面図である。FIG. 4 is a longitudinal sectional view showing a comparative example of the rotation sensor mounting structure of the railway vehicle bearing device according to the present invention.

この発明の実施の形態を、以下図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図1は、回転センサ付き転がり軸受装置の車両外側にある部分を示している。以下の説明において、前とは図1の左、後とは図1の右をいうものとする。   FIG. 1 shows a portion of a rolling bearing device with a rotation sensor located outside the vehicle. In the following description, “front” means the left in FIG. 1, and “rear” means the right in FIG.

図1に示すように、回転センサ付き転がり軸受装置は、鉄道車両用として使用されるもので軸受(1)およびそれに設けられたセンサ装置(2)を備えている。   As shown in FIG. 1, a rolling bearing device with a rotation sensor is used for a railway vehicle and includes a bearing (1) and a sensor device (2) provided thereon.

軸受(1)は、固定部材としての外輪(11)、回転部材としての内輪(12)、これらの間に配置された複列の転動体である複数の円錐ころ(13)および保持器(14)を備えている。軸受(1)は軸箱(3)に支持されており、軸受(1)の内輪(12)に回転軸(4)が嵌合固定されている。回転軸(4)は、段付き状に形成されており、内輪(12)の内径に等しい外径を有し前端部分が内輪(12)よりも前方にある中間部(4a)と、中間部(4a)の前端に連なってこれより若干小径のねじ部(4b)と、ねじ部(4b)に連なりかつテーパ状キー溝を有する円筒部(4c)と、円筒部(4c)に連なる小径の前端部(4d)とを有している。   The bearing (1) includes an outer ring (11) as a fixed member, an inner ring (12) as a rotating member, a plurality of tapered rollers (13) that are double-row rolling elements arranged therebetween, and a cage (14 ). The bearing (1) is supported by the shaft box (3), and the rotating shaft (4) is fitted and fixed to the inner ring (12) of the bearing (1). The rotating shaft (4) is formed in a stepped shape, and has an intermediate part (4a) having an outer diameter equal to the inner diameter of the inner ring (12) and a front end portion in front of the inner ring (12), and an intermediate part (4a) connected to the front end of the screw part (4b) having a slightly smaller diameter, a cylindrical part (4c) connected to the screw part (4b) and having a tapered keyway, and a small diameter connected to the cylindrical part (4c). And a front end (4d).

軸受(1)の前端部には、外輪(11)前端部に固定された密封部材(5)および内輪(12)端部に圧接された油切り(6)とが設けられている。回転軸(4)の前端部には、環状の抑えリング(8)が嵌められており、この抑えリング(8)と油切り(6)との間に、前ぶた(7)が配置されている。   The front end of the bearing (1) is provided with a sealing member (5) fixed to the front end of the outer ring (11) and an oil drain (6) pressed against the end of the inner ring (12). An annular retaining ring (8) is fitted to the front end of the rotating shaft (4), and the front lid (7) is placed between the retaining ring (8) and the oil drainer (6). Yes.

密封部材(5)は、外輪(11)内径に嵌め入れられて固定されているケースリング(15)と、組合せシール(5a)とからなる。組合せシール(5a)は、図2に詳しく示すように、ケースリング(15)内径に嵌め入れられているラビリンスリング(16)と、ラビリンスリング(16)内径に嵌め入れられているリップ保持リング(17)と、リップ保持リング(16)内径部に一体に設けられているシールリップ(18)と、シールリップ(18)を径方向内向きに付勢するコイルバネ(19)とからなる。ケースリング(15)は、外輪(11)端部の肩部に嵌められている大径円筒部(15a)、これと段差部(15b)を介して連なる小径円筒部(15c)と、小径円筒部(15c)端部から内向きにのびる内向きフランジ部(15d)とからなる。内向きフランジ部(15d)の内径は、前ぶた(7)の後端部外径に若干の間隙をおいて臨まされている。ラビリンスリング(16)は、ケースリング(15)の小径円筒部(15c)の内径に嵌め入れられて固定されている円筒部(16a)と、円筒部(16a)の後端部にある内向きフランジ部(16b)とからなり、内向きフランジ部(16b)の先端部が油切り(6)の外径に臨まされることによって、ラビリンスシールを形成している。リップ保持リング(17)は、ラビリンスリング(16)の内径に嵌め入れられて固定されている円筒部(17a)と、ケースリング(15)の内向きフランジ部(15d)との間にボルト(26)の頭部を収めるための軸方向すき間が存在するように円筒部(17a)の前端部に設けられた内向きフランジ部(17b)とからなり、シールリップ(18)は、内向きフランジ部(17b)の内径部に一体に成形されている。   The sealing member (5) includes a case ring (15) fitted and fixed to the inner diameter of the outer ring (11), and a combination seal (5a). As shown in detail in FIG. 2, the combination seal (5a) includes a labyrinth ring (16) fitted into the inner diameter of the case ring (15) and a lip retaining ring (16) fitted into the inner diameter of the labyrinth ring (16). 17), a seal lip (18) provided integrally with the inner diameter portion of the lip holding ring (16), and a coil spring (19) for urging the seal lip (18) inward in the radial direction. The case ring (15) includes a large-diameter cylindrical portion (15a) that is fitted to the shoulder of the end of the outer ring (11), a small-diameter cylindrical portion (15c) that is continuous with the step-diameter portion (15b), and a small-diameter cylinder. It consists of an inward flange portion (15d) extending inward from the end of the portion (15c). The inner diameter of the inward flange portion (15d) faces the outer diameter of the rear end portion of the front lid (7) with a slight gap. The labyrinth ring (16) includes a cylindrical portion (16a) that is fitted and fixed to the inner diameter of the small diameter cylindrical portion (15c) of the case ring (15), and an inward direction at the rear end of the cylindrical portion (16a). The labyrinth seal is formed by the flange portion (16b) and the tip of the inward flange portion (16b) facing the outer diameter of the oil drain (6). The lip retaining ring (17) is a bolt (between the cylindrical portion (17a) fitted and fixed to the inner diameter of the labyrinth ring (16) and the inward flange portion (15d) of the case ring (15). 26) and an inward flange portion (17b) provided at the front end of the cylindrical portion (17a) so that there is an axial gap for accommodating the head, and the seal lip (18) is an inward flange. It is formed integrally with the inner diameter part of the part (17b).

油切り(6)は、回転軸(4)の中間部(4a)の前端部分に嵌め入れられて固定されており、その外径は、密封部材(5)のシールリップ(18)に接触している。   The oil drainer (6) is fitted and fixed to the front end part of the intermediate part (4a) of the rotating shaft (4), and its outer diameter contacts the seal lip (18) of the sealing member (5). ing.

前ぶた(7)は、回転軸(4)のねじ部(4b)に対応するねじ部を有し回転軸(4)のねじ部(4b)およびキー溝付き円筒部(4c)に嵌められた小径円筒部(7a)と、小径円筒部(7a)前端に連なる大径円筒部(7b)とからなる。   The front lid (7) has a threaded portion corresponding to the threaded portion (4b) of the rotating shaft (4) and was fitted into the threaded portion (4b) of the rotating shaft (4) and the cylindrical portion (4c) with a key groove. The small-diameter cylindrical portion (7a) and the large-diameter cylindrical portion (7b) connected to the front end of the small-diameter cylindrical portion (7a).

前ぶた(7)の小径円筒部(7a)の外径には、回転の被検出部としてのパルサリング(20)が前ぶた(7)の大径円筒部(7b)に当接した状態で固定されている。パルサリング(20)の外径は、前ぶた(7)の大径円筒部(7b)の外径にほぼ等しく形成されており、その外周部には、磁気発生部としての歯が等ピッチで形成されている。パルサリング(20)とケースリング(15)の内向きフランジ部(15d)との間には、センサ装置(2)配置用の軸方向すき間が形成されている。   Fixed to the outer diameter of the small-diameter cylindrical part (7a) of the front lid (7) with the pulsar ring (20) as the rotation-detected part in contact with the large-diameter cylindrical part (7b) of the front lid (7) Has been. The outer diameter of the pulsar ring (20) is formed approximately equal to the outer diameter of the large-diameter cylindrical portion (7b) of the front lid (7). Has been. Between the pulsar ring (20) and the inward flange portion (15d) of the case ring (15), an axial gap for arranging the sensor device (2) is formed.

抑えリング(8)は、回転軸(4)の前端部(4a)に嵌められた円筒部(8a)と、円筒部(8a)の後端に設けられて前ぶた(7)を油切り(6)に圧接させているフランジ部(8b)と、フランジ部(8b)の基端部から後方に突出して回転軸(4)のキー溝付き円筒部(4c)のキー溝に嵌められている突出部(8c)とからなる。   The holding ring (8) is provided at the rear end of the cylindrical portion (8a) and the cylindrical portion (8a) fitted to the front end (4a) of the rotating shaft (4), and the front lid (7) is oil drained ( 6) Flanged portion (8b) that is in pressure contact, and protrudes rearward from the base end portion of the flange portion (8b) and is fitted into the key groove of the cylindrical portion (4c) with the key groove of the rotating shaft (4) It consists of a protrusion (8c).

センサ装置(2)は、図2および図3に拡大して示すように、センサ支持部材(21)と、センサ支持部材(21)に支持された1対の回転センサ(23)、1つの温度センサ(24)および1つの振動センサ(25)とを備えている。   2 and 3, the sensor device (2) includes a sensor support member (21), a pair of rotation sensors (23) supported by the sensor support member (21), and one temperature. A sensor (24) and one vibration sensor (25) are provided.

センサ支持部材(21)は、ボルト挿通孔(22a)が形成された突出部(22)を軸方向中程に有する略直方形ブロック状とされており、その突出部(22)は、パルサリング(20)と密封部材(5)のケースリング(15)の内向きフランジ部(15d)との間に形成された間隙に嵌め入れ可能な大きさとされている。そして、ケースリング(15)の内向きフランジ部(15d)を貫通しセンサ支持部材(21)の挿通孔(22a)に挿通されたボルト(26)にナット(27)をねじ合わせることにより、センサ支持部材(21)が密封部材(5)の外側面に脱着可能に取り付けられている。センサ支持部材(21)は、ケースリング(15)の内向きフランジ部(15d)に当接する面(21a)に加えて、ケースリング(15)の小径円筒部(15c)に当接する面(21b)も有している。なお、ボルト挿通孔(22a)をめねじ部に代えることにより、ケースリング(15)の内向きフランジ部(15d)を貫通してセンサ支持部材(21)のめねじ部にボルト(26)がねじ合わされることにより、センサ支持部材(21)が密封部材(5)の外側面に脱着可能に取り付けられているようにしてももちろんよい。   The sensor support member (21) is formed in a substantially rectangular block shape having a protruding portion (22) in which a bolt insertion hole (22a) is formed in the middle in the axial direction, and the protruding portion (22) is formed of a pulsar ring ( 20) and a size formed to fit in a gap formed between the inward flange portion (15d) of the case ring (15) of the sealing member (5). Then, the nut (27) is screwed to the bolt (26) that passes through the inward flange portion (15d) of the case ring (15) and is inserted into the insertion hole (22a) of the sensor support member (21). A support member (21) is detachably attached to the outer surface of the sealing member (5). The sensor support member (21) includes a surface (21b) that contacts the small diameter cylindrical portion (15c) of the case ring (15) in addition to the surface (21a) that contacts the inward flange portion (15d) of the case ring (15). ). In addition, by replacing the bolt insertion hole (22a) with a female thread portion, the bolt (26) passes through the inward flange portion (15d) of the case ring (15) to the female thread portion of the sensor support member (21). Of course, the sensor support member (21) may be detachably attached to the outer surface of the sealing member (5) by being screwed together.

回転センサ(23)は、パルサリング(20)の歯を径方向外側から臨む位置に周方向に所定間隔をおいて2つ配置されており、これらの2つの回転センサ(23)を使用することによって、回転速度だけでなく回転方向の検知も可能とされている。また、温度センサ(24)は、センサ支持部材(21)のケースリング(15)にほぼ接する部分に配置されており、温度センサ(24)を軸箱(3)に配置する場合に比べて、温度測定対象である軸受(1)に近いために軸受(1)の温度がセンサ(24)に伝わりやすく、軸受温度を精度よく検知することができる。同様に、振動センサ(25)は、外輪(11)と一体のケースリング(15)の振動を検知することができ、軸受(1)の振動を精度よく検知することができる。   Two rotation sensors (23) are arranged at predetermined intervals in the circumferential direction at positions facing the teeth of the pulsar ring (20) from the outside in the radial direction. By using these two rotation sensors (23), It is possible to detect not only the rotation speed but also the rotation direction. In addition, the temperature sensor (24) is disposed at a portion substantially in contact with the case ring (15) of the sensor support member (21), and compared with the case where the temperature sensor (24) is disposed in the axle box (3), Since it is close to the bearing (1) that is the object of temperature measurement, the temperature of the bearing (1) is easily transmitted to the sensor (24), and the bearing temperature can be detected with high accuracy. Similarly, the vibration sensor (25) can detect the vibration of the case ring (15) integrated with the outer ring (11), and can accurately detect the vibration of the bearing (1).

なお、上記の実施形態では、回転センサ(23)はセンサ支持部材(21)に埋め込まれた形態とされているが、回転センサとセンサ支持部材とは、これらが一体的に形成されていてもよい。   In the above embodiment, the rotation sensor (23) is embedded in the sensor support member (21), but the rotation sensor and the sensor support member may be integrally formed. Good.

(1) 軸受
(2) センサ装置
(5) 密封部材
(5a) 組合せシール
(6) 油切り
(7) 前ぶた
(11) 外輪(固定部材)
(12) 内輪(回転部材)
(13) 円錐ころ(転動体)
(15) ケースリング
(15a) 大径円筒部
(15b) 段差部
(15c) 小径円筒部
(15d) 内向きフランジ部
(20) パルサリング
(21) センサ支持部材
(21a) 内向きフランジ部当接面
(21b) 小径円筒部当接面
(22) 突出部
(22a) めねじ部
(23) 回転センサ
(24) 温度センサ
(25) 振動センサ
(26) ボルト
(27) ナット
(1) Bearing
(2) Sensor device
(5) Sealing member
(5a) Combination seal
(6) Oil drain
(7) Front lid
(11) Outer ring (fixing member)
(12) Inner ring (rotating member)
(13) Tapered rollers (rolling elements)
(15) Case ring
(15a) Large diameter cylindrical part
(15b) Stepped part
(15c) Small diameter cylindrical part
(15d) Inward flange
(20) Pulsaring
(21) Sensor support member
(21a) Inward flange contact surface
(21b) Small diameter cylindrical part contact surface
(22) Projection
(22a) Female thread
(23) Rotation sensor
(24) Temperature sensor
(25) Vibration sensor
(26) Bolt
(27) Nut

Claims (4)

固定部材と、回転部材と、両部材間に介装された複数の転動体と、固定部材の端部に固定されて両輪間の空間を密閉する密封部材と、回転部材の回転を検知する回転センサを有するセンサ装置とを備えている回転センサ付き転がり軸受装置において、センサ支持部材および被検出部の両方が密封部材よりも軸受外部に配置されており、密封部材に、センサ支持部材が脱着可能に取り付けられ、被検出部が、回転部材の端部に設けられ、回転センサが、被検出部に対向するようにセンサ支持部材に取り付けられていることを特徴とする回転センサ付き転がり軸受装置。   A fixing member, a rotating member, a plurality of rolling elements interposed between the two members, a sealing member fixed to an end of the fixing member to seal a space between the two wheels, and a rotation for detecting the rotation of the rotating member In a rolling bearing device with a rotation sensor provided with a sensor device having a sensor, both the sensor support member and the detected part are arranged outside the bearing rather than the sealing member, and the sensor support member can be attached to and detached from the sealing member A rolling bearing device with a rotation sensor, wherein the detected portion is provided at an end portion of the rotating member, and the rotation sensor is attached to the sensor support member so as to face the detected portion. センサ支持部材を脱着可能に取り付ける手段がねじ手段である請求項1の回転センサ付き転がり軸受装置。   2. The rolling bearing device with a rotation sensor according to claim 1, wherein the means for attaching the sensor support member in a detachable manner is a screw means. センサ支持部材は、密封部材の外側面に取り付けられ、被検出部は、センサ支持部材よりも外部に設けられている請求項1の回転センサ付き転がり軸受装置。   The rolling bearing device with a rotation sensor according to claim 1, wherein the sensor support member is attached to an outer surface of the sealing member, and the detected portion is provided outside the sensor support member. 回転部材端部に、環状の油切りを介して環状の前ぶたが圧接されており、密封部材は、固定部材端部の肩部に嵌められている大径円筒部、これと段差部を介して連なる小径円筒部および小径円筒部端部から径方向内向きにのびる内向きフランジ部からなるケースリングと、ケースリングの小径円筒部と油切りとの間に配置された組合せシールとからなり、ケースリングの内向きフランジ部の内径は、前ぶた外径に若干の間隙をおいて臨まされており、回転の被検出部としてのパルサリングが前ぶたに固定されており、パルサリングの外周部に、磁気発生部としての歯が等ピッチで形成されており、パルサリングとケースリングの内向きフランジ部との間に、センサ装置配置用の軸方向すき間が形成されており、センサ装置は、センサ支持部材と、センサ支持部材に支持された1対の回転センサ、1つの温度センサおよび1つの振動センサとを備えており、センサ支持部材は、パルサリングとケースリングの内向きフランジ部との間の軸方向すき間に嵌め入れ可能な大きさの突出部を軸方向中程に有する略直方形ブロック状とされており、センサ支持部材の突出部とケースリングの内向きフランジ部とがボルトによって結合されており、回転センサは、パルサリングの歯を径方向外側から臨む位置に周方向に所定間隔をおいて2つ配置されており、温度センサは、センサ支持部材のケースリングにほぼ接する部分に配置されている請求項1の回転センサ付き転がり軸受装置。   An annular front lid is pressed against the end of the rotating member through an annular oil drain, and the sealing member is connected to the large diameter cylindrical portion fitted on the shoulder of the fixed member end, and the step portion. A case ring consisting of a small diameter cylindrical portion and an inward flange portion extending radially inward from the end of the small diameter cylindrical portion, and a combination seal disposed between the small diameter cylindrical portion of the case ring and the oil drainer, The inner diameter of the inward flange part of the case ring faces the outer diameter of the front lid with a slight gap, and the pulsar ring as a rotation detected part is fixed to the front lid, and on the outer periphery of the pulsar ring, Teeth as magnetism generating portions are formed at an equal pitch, and an axial gap for sensor device placement is formed between the pulsar ring and the inward flange portion of the case ring, and the sensor device is a sensor support member A pair of rotation sensors supported by the sensor support member, one temperature sensor, and one vibration sensor, the sensor support member being an axial clearance between the pulsar ring and the inward flange portion of the case ring A projecting portion having a size that can be fitted in the middle in the axial direction, and a projecting portion of the sensor support member and an inward flange portion of the case ring are coupled by a bolt, Two rotation sensors are arranged at a predetermined interval in the circumferential direction at a position facing the teeth of the pulsar ring from the outside in the radial direction, and the temperature sensor is arranged at a portion substantially in contact with the case ring of the sensor support member. The rolling bearing device with a rotation sensor according to Item 1.
JP2009027382A 2009-02-09 2009-02-09 Rotation sensor mounting structure for railway vehicle bearing device Expired - Fee Related JP4997483B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009027382A JP4997483B2 (en) 2009-02-09 2009-02-09 Rotation sensor mounting structure for railway vehicle bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009027382A JP4997483B2 (en) 2009-02-09 2009-02-09 Rotation sensor mounting structure for railway vehicle bearing device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2002357719A Division JP4521594B2 (en) 2002-12-10 2002-12-10 Rolling bearing device with rotation sensor

Publications (2)

Publication Number Publication Date
JP2009103317A true JP2009103317A (en) 2009-05-14
JP4997483B2 JP4997483B2 (en) 2012-08-08

Family

ID=40705165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009027382A Expired - Fee Related JP4997483B2 (en) 2009-02-09 2009-02-09 Rotation sensor mounting structure for railway vehicle bearing device

Country Status (1)

Country Link
JP (1) JP4997483B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002295464A (en) * 2001-03-30 2002-10-09 Nsk Ltd Abnormality detection device of rolling bearing unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002295464A (en) * 2001-03-30 2002-10-09 Nsk Ltd Abnormality detection device of rolling bearing unit

Also Published As

Publication number Publication date
JP4997483B2 (en) 2012-08-08

Similar Documents

Publication Publication Date Title
KR101372973B1 (en) Roller for conveyor system capable of fault diagnostic
JP2015017666A (en) Idler pulley supporting device
JP4997483B2 (en) Rotation sensor mounting structure for railway vehicle bearing device
JP4521594B2 (en) Rolling bearing device with rotation sensor
JP2010235115A (en) Hub unit for drive wheel
JP5895799B2 (en) Oil seal inspection device
JP2005331025A (en) Bearing with sensor
JP2007263213A (en) Wheel bearing device
JP2006275205A (en) Rolling bearing device
JP2014234919A (en) Detachable jig for double row cylindrical roller bearing
JP2006312972A (en) Vehicle bearing device
TWI571404B (en) A bicycle bottom bracket assembly and its bearing support member
JP2004190745A (en) Rolling bearing device with sensor
JP2009257474A (en) Rolling bearing device with sensor
JP2002357220A (en) Rolling bearing unit with rotation detecting device
JP4200380B2 (en) Railway vehicle bearing device
JP6048208B2 (en) Attachment / detachment jig for double row cylindrical roller bearing, assembly method and removal method of the bearing
JP4235827B2 (en) Vehicle bearing device
JP2014201212A (en) Bearing device for wheel with sensor
JP4924728B2 (en) Rolling bearing unit with rotational speed detector
JP2008139185A (en) Lubricant degradation detector of bearing
JP2008070276A (en) Pulsar ring and bearing device
JP2007015476A (en) Bearing unit
JP2008241556A (en) Lubricant degradation detector and bearing with detector
JP2006250607A (en) Rotational speed detector

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090309

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090309

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110829

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111115

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120113

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120403

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120416

R150 Certificate of patent or registration of utility model

Ref document number: 4997483

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150525

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees