JP4915149B2 - Bearing sensor mounting structure, bearing sensor mounting method, and bearing device with sensor - Google Patents

Bearing sensor mounting structure, bearing sensor mounting method, and bearing device with sensor Download PDF

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JP4915149B2
JP4915149B2 JP2006171274A JP2006171274A JP4915149B2 JP 4915149 B2 JP4915149 B2 JP 4915149B2 JP 2006171274 A JP2006171274 A JP 2006171274A JP 2006171274 A JP2006171274 A JP 2006171274A JP 4915149 B2 JP4915149 B2 JP 4915149B2
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housing
bearing
sensor
peripheral surface
outer peripheral
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JP2008002883A (en
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稔 窪川
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NSK Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Description

本発明は、軸受装置に軸受センサを取り付ける構造に係り、特に、ネジの脱落を防止するのに好適な軸受センサの取付構造、軸受センサの取付方法及びセンサ付軸受装置に関する。 The present invention relates to a structure for mounting a bearing sensor on a bearing device, and more particularly to a bearing sensor mounting structure , a bearing sensor mounting method, and a sensor-equipped bearing device that are suitable for preventing a screw from falling off.

従来、鉄道車両や自動車等の車両では、保全のため、温度センサや振動センサ等の軸受センサを車両の軸受装置に取り付け、軸受センサからの検出信号に基づいて車両の運転状態を監視している。
図４は、従来の軸受装置および軸受センサの径方向の断面図である。
軸受装置１は、図４に示すように、転がり軸受１０と、転がり軸受１０を収容するハウジング２とで構成されている。
転がり軸受１０は、内輪１１と、外輪１２と、内輪１１および外輪１２の間で転動自在に配設された複数のボール１３とを備え、内輪１１が車両の車軸３を回転可能に支持し、外輪１２がハウジング２に固定されている。
ハウジング２の外周面２ａには、軸受センサ８０が取り付けられている。 Conventionally, in a vehicle such as a railway vehicle or an automobile, a bearing sensor such as a temperature sensor or a vibration sensor is attached to the vehicle bearing device for maintenance, and the operation state of the vehicle is monitored based on a detection signal from the bearing sensor. .
FIG. 4 is a radial sectional view of a conventional bearing device and bearing sensor.
As shown in FIG. 4 , the bearing device 1 includes a rolling bearing 10 and a housing 2 that houses the rolling bearing 10.
The rolling bearing 10 includes an inner ring 11, an outer ring 12, and a plurality of balls 13 that are rotatably disposed between the inner ring 11 and the outer ring 12, and the inner ring 11 rotatably supports the axle 3 of the vehicle. The outer ring 12 is fixed to the housing 2.
A bearing sensor 80 is attached to the outer peripheral surface 2 a of the housing 2.

図３は、軸受センサ８０の断面図である。
図３において、筐体８１の内底面には、センサ回路基板８２がネジ８３によりネジ止めされている。
センサ回路基板８２には、振動センサ８４および温度センサ８５が実装されている。センサ回路基板８２には、筐体８１の外側面を介してケーブル８６が接続され、ケーブル８６の端部は、ケーブルグランド８７により筐体８１の外側面に固定されている。 FIG. 3 is a cross-sectional view of the bearing sensor 80.
In FIG. 3 , the sensor circuit board 82 is screwed to the inner bottom surface of the housing 81 with screws 83.
A vibration sensor 84 and a temperature sensor 85 are mounted on the sensor circuit board 82. A cable 86 is connected to the sensor circuit board 82 via an outer surface of the housing 81, and an end portion of the cable 86 is fixed to the outer surface of the housing 81 by a cable gland 87.

筐体８１の上端には、筐体カバー８８がネジ８９によりネジ止めされている。これにより、筐体８１の開口部が筐体カバー８８により被覆される。
筐体８１の底部にはフランジ９０が設けられ、フランジ９０には、ボルト９１を通過させるためのボルト穴９２が形成されている。外周面２ａには、ボルト穴９２の位置に合せてネジ穴９３が形成されている。軸受センサ８０は、ボルト穴９２を介してボルト９１をネジ穴９３に螺合することにより外周面２ａに取り付けられている。 A housing cover 88 is screwed to the upper end of the housing 81 with screws 89. Thereby, the opening of the housing 81 is covered with the housing cover 88.
A flange 90 is provided at the bottom of the housing 81, and a bolt hole 92 for allowing the bolt 91 to pass therethrough is formed in the flange 90. A screw hole 93 is formed in the outer peripheral surface 2 a in accordance with the position of the bolt hole 92. The bearing sensor 80 is attached to the outer peripheral surface 2 a by screwing the bolt 91 into the screw hole 93 through the bolt hole 92.

なお、このような取付構造としては、例えば、特許文献１記載の技術が知られている。
特開２００３−４２８３５号公報 As such an attachment structure, for example, a technique described in Patent Document 1 is known.
JP 2003-42835 A

しかしながら、従来の取付構造にあっては、筐体カバー８８を外側に向けて取り付けているため、車両の振動によってネジ８９が緩んだ場合は、ネジ８９が抜けて脱落する可能性があるという問題があった。
そこで、本発明は、このような従来の技術の有する未解決の課題に着目してなされたものであって、ネジの脱落を防止するのに好適な軸受センサの取付構造および軸受センサの取付方法を提供することを目的としている。 However, in the conventional mounting structure, since the housing cover 88 is mounted facing outward, when the screw 89 is loosened due to vibration of the vehicle, the screw 89 may come off and fall off. was there.
Therefore, the present invention has been made paying attention to such an unsolved problem of the conventional technology, and is suitable for preventing the screw from falling off and a mounting method of the bearing sensor. The purpose is to provide.

〔発明１〕上記目的を達成するために、発明１の軸受センサの取付構造は、軸受装置に軸受センサを取り付けた軸受センサの取付構造であって、前記軸受センサは、前記軸受装置の状態を検出するセンサ回路基板と、開口部を有し前記センサ回路基板を収容する筐体と、前記筐体の前記開口部を被覆する筐体カバーとを備え、前記筐体を前記筐体カバーに対してネジ止めし、前記筐体カバーには当該筐体カバーを軸受装置に取り付けるための外向きフランジを設けてなり、前記筐体カバーにより開口部を被覆した前記筐体を前記筐体カバーよりも前記軸受装置側にして前記外向きフランジを軸受装置の外周面にボルト締めして、前記筐体カバーを前記外周面に固着することにより前記軸受センサを前記外周面に取り付けた。 [Invention 1] In order to achieve the above object, the bearing sensor mounting structure of the invention 1 is a bearing sensor mounting structure in which a bearing sensor is mounted on a bearing device, and the bearing sensor indicates the state of the bearing device. a sensor circuit board for detecting a housing for accommodating the sensor circuit board has an opening, and a housing cover covering the opening of the housing relative to the housing covers the housing screw Te, from the the housing cover will be provided outward flange for mounting the housing cover to the bearing device, the housing cover the housing coated with opening by front Kikatamitai cover Also, the bearing sensor is attached to the outer peripheral surface by bolting the outward flange to the outer peripheral surface of the bearing device on the bearing device side, and fixing the housing cover to the outer peripheral surface .

〔発明２〕 さらに、発明２の軸受センサの取付構造は、発明１の軸受センサの取付構造において、前記軸受センサは、前記筐体および前記筐体カバーを前記筐体側からネジ止めしてなり、前記筐体側を前記外周面に向けて前記軸受センサを前記外周面に取り付けた。
このような構成であれば、ネジ止めされた側である筐体側を軸受装置の外周面に向けて軸受センサが取り付けられているので、筐体カバーと外周面の間でネジの移動が制限される。したがって、振動等によりネジが緩んでも脱落しない。 [Invention 2] Further, the mounting structure of the bearing sensor of Invention 2 is the mounting structure of the bearing sensor of Invention 1, wherein the bearing sensor is formed by screwing the housing and the housing cover from the housing side, The bearing sensor was attached to the outer peripheral surface with the housing side facing the outer peripheral surface.
With such a configuration, since the bearing sensor is mounted with the housing side, which is the screwed side, facing the outer peripheral surface of the bearing device, the movement of the screw is limited between the housing cover and the outer peripheral surface. The Therefore, even if the screw is loosened due to vibration or the like, it does not fall off.

〔発明３〕 さらに、発明３の軸受センサの取付構造は、発明２の軸受センサの取付構造において、前記筐体をネジ止めしたネジの頭部から前記外周面までの高さを、前記筐体カバーと前記ネジの結合部の深さよりも小さくした。
このような構成であれば、ネジの頭部から外周面までの高さが、筐体カバーとネジの結合部の深さよりも小さいので、振動等によりネジが緩んでもネジの移動範囲が結合部の深さより大きくならない。したがって、ネジがさらに脱落しない。 [Invention 3] Further, the bearing sensor mounting structure according to Invention 3 is the bearing sensor mounting structure according to Invention 2, wherein the height from the head of the screw to which the casing is screwed to the outer peripheral surface is defined as the casing. The depth was smaller than the depth of the joint between the cover and the screw.
With such a configuration, since the height from the head of the screw to the outer peripheral surface is smaller than the depth of the connecting portion between the housing cover and the screw, even if the screw is loosened due to vibration or the like, the moving range of the screw is No greater than the depth of the. Therefore, the screw does not fall further.

〔発明４〕 さらに、発明４の軸受センサの取付構造は、発明２および３のいずれか１の軸受センサの取付構造において、前記筐体の下体を嵌合するための嵌合穴を前記外周面に形成し、前記筐体の下体を前記嵌合穴に嵌合させて前記軸受センサを前記外周面に取り付けた。
このような構成であれば、筐体の下体を嵌合穴に嵌合させて軸受センサが軸受装置の外周面に取り付けられているので、軸受センサの移動が拘束される。したがって、軸受センサが軸受装置から脱落しにくい。 [Invention 4] The bearing sensor mounting structure according to Invention 4 is the bearing sensor mounting structure according to any one of Inventions 2 and 3, wherein the fitting hole for fitting the lower body of the housing is provided on the outer peripheral surface. The lower body of the housing was fitted into the fitting hole, and the bearing sensor was attached to the outer peripheral surface.
With such a configuration, the lower body of the housing is fitted into the fitting hole and the bearing sensor is attached to the outer peripheral surface of the bearing device, so that the movement of the bearing sensor is restricted. Therefore, it is difficult for the bearing sensor to fall off the bearing device.

〔発明５〕 一方、上記目的を達成するために、発明５の軸受センサの取付方法は、軸受装置に軸受センサを取り付ける軸受センサの取付方法であって、前記軸受装置の状態を検出するセンサ回路基板を前記軸受センサの筐体に収容する収容ステップと、前記筐体の開口部を外向きフランジが設けられた筐体カバーで被覆する被覆ステップと、前記筐体を前記筐体カバーに対してネジ止めするネジ止めステップと、前記筐体カバーにより開口部を被覆した前記筐体を前記筐体カバーよりも前記軸受装置側にして前記外向きフランジを軸受装置の外周面にボルト締めして、前記筐体カバーを前記外周面に固着することにより前記軸受センサを前記外周面に取り付ける取付ステップとを含む。 [Invention 5] On the other hand, in order to achieve the above object, the bearing sensor attachment method of Invention 5 is a bearing sensor attachment method for attaching a bearing sensor to a bearing device, and a sensor circuit for detecting the state of the bearing device. a housing step of housing the substrate in the housing of the bearing sensor, the opening of the housing and covering step of the outward flange is covered with a housing cover which is provided, said housing with respect to the housing cover and screwing step of screwing, the said casing coated with opening by front Kikatamitai cover the housing the outwardly flange and the bearing device side of the cover bolted to the outer circumferential surface of the bearing device And an attaching step of attaching the bearing sensor to the outer peripheral surface by fixing the housing cover to the outer peripheral surface .

〔発明６〕 さらに、発明６のセンサ付軸受装置は、発明１〜発明４のいずれか１つの軸受センサの取付構造を備えたことを特徴とするセンサ付軸受装置である。 [Invention 6] The sensor-equipped bearing device according to Invention 6 is a bearing device with sensor, characterized in that it includes the bearing sensor mounting structure according to any one of Inventions 1 to 4.

以上説明したように、発明１の軸受センサの取付構造、または発明５の軸受センサの取付方法によれば、筐体と軸受装置の外周面の間でネジの移動が制限されるので、従来に比して、ネジが脱落しないという効果が得られる。
さらに、発明３の軸受センサの取付構造によれば、ネジがネジ穴から外れないという効果が得られる。
さらに、発明４の軸受センサの取付構造によれば、軸受センサが軸受装置から脱落する可能性を低減することができるという効果が得られる。 As described above, according to the bearing sensor mounting structure of the invention 1 or the bearing sensor mounting method of the invention 5, the movement of the screw is limited between the housing and the outer peripheral surface of the bearing device. In comparison, the effect that the screw does not fall off is obtained.
Furthermore, according to the mounting structure of the bearing sensor of the invention 3, the effect that the screw is not removed from the screw hole is obtained.
Furthermore, according to the mounting structure of the bearing sensor of the present invention 4, there is an advantage that it is the bearing sensor to reduce the likelihood of falling from the bearing device.

以下、本発明の実施の形態を図面を参照しながら説明する。図１および図２は、本発明に係る軸受センサの取付構造および軸受センサの取付方法並びにセンサ付軸受装置の実施の形態を示す図である。
本実施の形態は、本発明に係る軸受センサの取付構造および軸受センサの取付方法を、図１に示すように、鉄道車両や自動車等の車両の軸受装置１に軸受センサ２０を取り付ける場合について適用したものである。 Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of a bearing sensor mounting structure, a bearing sensor mounting method , and a sensor-equipped bearing device according to the present invention.
In the present embodiment, the bearing sensor mounting structure and the bearing sensor mounting method according to the present invention are applied to the case where the bearing sensor 20 is mounted on a bearing device 1 of a vehicle such as a railway vehicle or an automobile as shown in FIG. It is a thing.

まず、軸受センサの取付構造を説明する。
図１は、本実施の形態に係る軸受装置および軸受センサの径方向の断面図である。
軸受装置１は、図１に示すように、転がり軸受１０と、転がり軸受１０を収容するハウジング２とで構成されている。
転がり軸受１０は、内輪１１と、外輪１２と、内輪１１および外輪１２の間で転動自在に配設された複数のボール１３とを備え、内輪１１が車両の車軸３を回転可能に支持し、外輪１２がハウジング２に固定されている。なお、図示しないが、転がり軸受１０は、車軸３の軸方向に少なくとも２つ設けられ、車軸３は、複数の転がり軸受１０により回転可能に支持されている。
ハウジング２の外周面２ａには、軸受センサ２０が取り付けられている。 First, a bearing sensor mounting structure will be described.
FIG. 1 is a radial sectional view of a bearing device and a bearing sensor according to the present embodiment.
As shown in FIG. 1, the bearing device 1 includes a rolling bearing 10 and a housing 2 that houses the rolling bearing 10.
The rolling bearing 10 includes an inner ring 11, an outer ring 12, and a plurality of balls 13 that are rotatably disposed between the inner ring 11 and the outer ring 12, and the inner ring 11 rotatably supports the axle 3 of the vehicle. The outer ring 12 is fixed to the housing 2. Although not shown, at least two rolling bearings 10 are provided in the axial direction of the axle 3, and the axle 3 is rotatably supported by a plurality of rolling bearings 10.
A bearing sensor 20 is attached to the outer peripheral surface 2 a of the housing 2.

図２は、軸受センサ２０の断面図である。
図２において、筐体２１の内底面には、センサ回路基板２２がネジ２３によりネジ止めされている。センサ回路基板２２には、振動センサ２４および温度センサ２５が実装されている。
筐体カバー４０の底部にはフランジ４１が設けられている。フランジ４１は、筐体カバー４０の底面より突出して設けられ、筐体カバー４０の底面およびフランジ４１の内周面により、筐体２１の上体を嵌合するための嵌合穴４２が形成されている。 FIG. 2 is a cross-sectional view of the bearing sensor 20.
In FIG. 2, the sensor circuit board 22 is screwed to the inner bottom surface of the housing 21 with screws 23. A vibration sensor 24 and a temperature sensor 25 are mounted on the sensor circuit board 22.
A flange 41 is provided at the bottom of the housing cover 40. The flange 41 is provided so as to protrude from the bottom surface of the housing cover 40, and a fitting hole 42 for fitting the upper body of the housing 21 is formed by the bottom surface of the housing cover 40 and the inner peripheral surface of the flange 41. ing.

筐体２１の上端にはフランジ２６が設けられ、フランジ２６には、ネジ２７を通過させるための透穴２８が形成されている。嵌合穴４２の底面には、透穴２８の位置に合せてネジ穴４３が形成されている。筐体２１および筐体カバー４０は、筐体２１の上体を嵌合穴４２に嵌合させ、透穴２８を介してネジ２７をネジ穴４３に螺合することによりネジ止めされている。これにより、筐体２１の開口部が筐体カバー４０により被覆される。   A flange 26 is provided at the upper end of the housing 21, and a through hole 28 for allowing a screw 27 to pass therethrough is formed in the flange 26. A screw hole 43 is formed on the bottom surface of the fitting hole 42 in accordance with the position of the through hole 28. The housing 21 and the housing cover 40 are screwed by fitting the upper body of the housing 21 into the fitting hole 42 and screwing the screw 27 into the screw hole 43 through the through hole 28. Thereby, the opening of the housing 21 is covered with the housing cover 40.

フランジ４１には、ボルト４４を通過させるためのボルト穴４５が形成されている。外周面２ａには、ボルト穴４５の位置に合せてネジ穴５０が形成されているとともに、筐体２１の下体を嵌合するための嵌合穴５１が形成されている。軸受センサ２０は、筐体２１の下体を嵌合穴５１に嵌合させ、ボルト穴４５を介してボルト４４をネジ穴５０に螺合することにより外周面２ａに取り付けられている。このとき、ネジ２７の頭部から外周面２ａまでの高さは、ネジ２７とネジ穴４３の螺合部の深さよりも小さくなっている。
センサ回路基板２２には、筐体カバー４０の外側面を介してケーブル４６が接続され、ケーブル４６の端部は、ケーブルグランド４７により筐体カバー４０の外側面に固定されている。 Bolt holes 45 for allowing the bolts 44 to pass through are formed in the flange 41. A screw hole 50 is formed in the outer peripheral surface 2a in accordance with the position of the bolt hole 45, and a fitting hole 51 for fitting the lower body of the housing 21 is formed. The bearing sensor 20 is attached to the outer peripheral surface 2 a by fitting the lower body of the housing 21 into the fitting hole 51 and screwing the bolt 44 into the screw hole 50 through the bolt hole 45. At this time, the height from the head of the screw 27 to the outer peripheral surface 2 a is smaller than the depth of the screwed portion of the screw 27 and the screw hole 43.
A cable 46 is connected to the sensor circuit board 22 via an outer surface of the housing cover 40, and an end portion of the cable 46 is fixed to the outer surface of the housing cover 40 by a cable gland 47.

次に、軸受センサ２０の取付方法を説明する。
まず、筐体２１の内部にセンサ回路基板２２を収容し、センサ回路基板２２を筐体２１の内底面にネジ２３によりネジ止めする。次いで、筐体２１の上体を嵌合穴４２に嵌合させ、透穴２８を介してネジ２７をネジ穴４３に螺合することにより筐体２１および筐体カバー４０をネジ止めする。次いで、筐体２１の下体を嵌合穴５１に嵌合させ、ボルト穴４５を介してボルト４４をネジ穴５０に螺合することにより軸受センサ２０を外周面２ａに取り付ける。そして、筐体カバー４０の外側面を介してセンサ回路基板２２にケーブル４６を接続し、ケーブル４６の端部をケーブルグランド４７により筐体カバー４０の外側面に固定する。 Next, a method for mounting the bearing sensor 20 will be described.
First, the sensor circuit board 22 is accommodated in the housing 21, and the sensor circuit board 22 is screwed to the inner bottom surface of the housing 21 with screws 23. Next, the upper body of the housing 21 is fitted into the fitting hole 42, and the housing 21 and the housing cover 40 are screwed by screwing the screw 27 into the screw hole 43 through the through hole 28. Next, the lower body of the housing 21 is fitted into the fitting hole 51, and the bolt 44 is screwed into the screw hole 50 through the bolt hole 45 to attach the bearing sensor 20 to the outer peripheral surface 2 a. Then, the cable 46 is connected to the sensor circuit board 22 via the outer surface of the housing cover 40, and the end of the cable 46 is fixed to the outer surface of the housing cover 40 by the cable gland 47.

このようにして、本実施の形態では、筐体２１および筐体カバー４０を筐体２１側からネジ２７によりネジ止めし、筐体２１側を外周面２ａに向けて軸受センサ２０を外周面２ａに取り付けた。
これにより、筐体カバー４０と外周面２ａの間でネジ２７の移動が制限されるので、車両の振動によりネジ２７が緩んでも脱落しない。したがって、従来に比して、ネジ２７が脱落する可能性を低減することができる。
さらに、本実施の形態では、ネジ２７の頭部から外周面２ａまでの高さを、ネジ２７とネジ穴４３の螺合部の深さよりも小さくした。 Thus, in the present embodiment, the housing 21 and the housing cover 40 are screwed from the housing 21 side with the screws 27, and the bearing sensor 20 is placed on the outer circumferential surface 2a with the housing 21 side facing the outer circumferential surface 2a. Attached to.
Thereby, since the movement of the screw 27 is restricted between the housing cover 40 and the outer peripheral surface 2a, even if the screw 27 is loosened by the vibration of the vehicle, it does not fall off. Therefore, it is possible to reduce the possibility that the screw 27 falls off as compared with the conventional case.
Further, in the present embodiment, the height from the head of the screw 27 to the outer peripheral surface 2 a is made smaller than the depth of the screwed portion between the screw 27 and the screw hole 43.

これにより、車両の振動によりネジ２７が緩んでもネジ２７の移動範囲が螺合部の深さより大きくならないので、ネジ２７がネジ穴から脱落する可能性をなくすことができる。
さらに、本実施の形態では、筐体２１の下体を嵌合穴５１に嵌合させて軸受センサ２０を外周面２ａに取り付けた。
これにより、軸受センサ２０の移動が拘束されるので、軸受センサ２０が軸受装置１から脱落する可能性を低減することができる。
なお、上記実施の形態においては、筐体２１および筐体カバー４０を筐体２１側からネジ２７によりネジ止めし、筐体２１側を外周面２ａに向けて軸受センサ２０を外周面２ａに取り付けたが、これに限らず、筐体２１および筐体カバー４０を筐体カバー４０側からネジ止めし、筐体カバー４０側を外周面２ａに向けて軸受センサ２０を外周面２ａに取り付けてもよい。 As a result, even if the screw 27 is loosened due to the vibration of the vehicle, the moving range of the screw 27 does not become larger than the depth of the screwing portion, so that the possibility that the screw 27 falls off from the screw hole can be eliminated.
Further, in the present embodiment, the lower body of the casing 21 is fitted into the fitting hole 51, and the bearing sensor 20 is attached to the outer peripheral surface 2a.
Thereby, since the movement of the bearing sensor 20 is restrained, the possibility that the bearing sensor 20 falls off from the bearing device 1 can be reduced.
In the above embodiment, the housing 21 and the housing cover 40 are screwed from the housing 21 side with screws 27, and the bearing sensor 20 is attached to the outer circumferential surface 2a with the housing 21 side facing the outer circumferential surface 2a. However, the present invention is not limited thereto, and the housing 21 and the housing cover 40 may be screwed from the housing cover 40 side, and the bearing sensor 20 may be attached to the outer circumferential surface 2a with the housing cover 40 side facing the outer circumferential surface 2a. Good.

また、上記実施の形態においては、振動センサ２４および温度センサ２５をセンサ回路基板２２に実装したが、これに加えて、車軸３の回転を検出する回転速度センサを実装してもよい。
また、上記実施の形態においては、本発明に係る軸受センサの取付構造および軸受センサの取付方法を、鉄道車両や自動車等の車両の軸受装置１に軸受センサ２０を取り付ける場合について適用したが、これに限らず、本発明の主旨を逸脱しない範囲で他の場合にも適用可能である。 In the above embodiment, the vibration sensor 24 and the temperature sensor 25 are mounted on the sensor circuit board 22. However, in addition to this, a rotation speed sensor that detects the rotation of the axle 3 may be mounted.
In the above embodiment, the bearing sensor mounting structure and the bearing sensor mounting method according to the present invention are applied to the case where the bearing sensor 20 is mounted on the bearing device 1 of a vehicle such as a railway vehicle or an automobile. However, the present invention can be applied to other cases without departing from the gist of the present invention.

本実施の形態に係る軸受装置および軸受センサの径方向の断面図である。It is sectional drawing of the radial direction of the bearing apparatus and bearing sensor which concern on this Embodiment. 軸受センサ２０の断面図である。2 is a cross-sectional view of a bearing sensor 20. FIG. 従来の軸受装置および軸受センサの径方向の断面図である。It is sectional drawing of the radial direction of the conventional bearing apparatus and a bearing sensor. 軸受センサ８０の断面図である。3 is a cross-sectional view of a bearing sensor 80. FIG.

符号の説明Explanation of symbols

１ 軸受装置
２ ハウジング
２ａ 外周面
２０、８０ 軸受センサ
１０ 転がり軸受
２１、８１ 筐体
２２、８２ センサ回路基板
２３、２７、８３、８９ ネジ
２４、８４ 振動センサ
２５、８５ 温度センサ
２６、４１、９０ フランジ
２８ 透穴
４０、８８ 筐体カバー
４２、５１ 嵌合穴
４３、５０、９３ ネジ穴
４４、９１ ボルト
４５、９２ ボルト穴
４６、８６ ケーブル
４７、８７ ケーブルグランド DESCRIPTION OF SYMBOLS 1 Bearing apparatus 2 Housing 2a Outer peripheral surface 20, 80 Bearing sensor 10 Rolling bearing 21, 81 Housing 22, 82 Sensor circuit board 23, 27, 83, 89 Screw 24, 84 Vibration sensor 25, 85 Temperature sensor 26, 41, 90 Flange 28 Through hole 40, 88 Housing cover 42, 51 Fitting hole 43, 50, 93 Screw hole 44, 91 Bolt 45, 92 Bolt hole 46, 86 Cable 47, 87 Cable gland

Claims (6)

軸受装置に軸受センサを取り付けた軸受センサの取付構造であって、
前記軸受センサは、前記軸受装置の状態を検出するセンサ回路基板と、開口部を有し前記センサ回路基板を収容する筐体と、前記筐体の前記開口部を被覆する筐体カバーとを備え、前記筐体を前記筐体カバーに対してネジ止めし、前記筐体カバーには当該筐体カバーを軸受装置に取り付けるための外向きフランジを設けてなり、
前記筐体カバーにより開口部を被覆した前記筐体を前記筐体カバーよりも前記軸受装置側にして前記外向きフランジを軸受装置の外周面にボルト締めして、前記筐体カバーを前記外周面に固着することにより前記軸受センサを前記外周面に取り付けたことを特徴とする軸受センサの取付構造。 A bearing sensor mounting structure in which a bearing sensor is mounted on a bearing device,
The bearing sensor comprises a sensor circuit board for detecting the state of the bearing device, a housing for accommodating the sensor circuit board having an opening, a housing cover covering the opening of the housing the screw the housing relative to the housing cover, wherein the housing cover will be provided outward flange for mounting the housing cover to the bearing device,
The outward flange and the bearing device side of the housing cover the housing coated with the opening by the previous Kikatamitai cover bolted to the outer circumferential surface of the bearing apparatus, the outer periphery of the housing cover A bearing sensor mounting structure, wherein the bearing sensor is mounted on the outer peripheral surface by being fixed to a surface . 請求項１において、
前記軸受センサは、前記筐体および前記筐体カバーを前記筐体側からネジ止めしてなり、
前記筐体側を前記外周面に向けて前記軸受センサを前記外周面に取り付けたことを特徴とする軸受センサの取付構造。 In claim 1,
The bearing sensor is formed by screwing the housing and the housing cover from the housing side,
A bearing sensor mounting structure, wherein the bearing sensor is mounted on the outer peripheral surface with the housing side facing the outer peripheral surface. 請求項２において、
前記筐体をネジ止めしたネジの頭部から前記外周面までの高さを、前記筐体カバーと前記ネジの結合部の深さよりも小さくしたことを特徴とする軸受センサの取付構造。 In claim 2,
A bearing sensor mounting structure, wherein a height from a screw head to which the housing is screwed to an outer peripheral surface is made smaller than a depth of a joint portion between the housing cover and the screw. 請求項２および３のいずれか１項において、
前記筐体の下体を嵌合するための嵌合穴を前記外周面に形成し、前記筐体の下体を前記嵌合穴に嵌合させて前記軸受センサを前記外周面に取り付けたことを特徴とする軸受センサの取付構造。 In any one of Claim 2 and 3,
A fitting hole for fitting the lower body of the housing is formed on the outer peripheral surface, and the bearing sensor is attached to the outer peripheral surface by fitting the lower body of the housing into the fitting hole. Bearing sensor mounting structure. 軸受装置に軸受センサを取り付ける軸受センサの取付方法であって、
前記軸受装置の状態を検出するセンサ回路基板を前記軸受センサの筐体に収容する収容ステップと、前記筐体の開口部を外向きフランジが設けられた筐体カバーで被覆する被覆ステップと、前記筐体を前記筐体カバーに対してネジ止めするネジ止めステップと、前記筐体カバーにより開口部を被覆した前記筐体を前記筐体カバーよりも前記軸受装置側にして前記外向きフランジを軸受装置の外周面にボルト締めして、前記筐体カバーを前記外周面に固着することにより前記軸受センサを前記外周面に取り付ける取付ステップとを含むことを特徴とする軸受センサの取付方法。 A bearing sensor mounting method for mounting a bearing sensor on a bearing device,
A housing step of housing a sensor circuit board for detecting a state of the bearing device in a housing of the bearing sensor; a covering step of covering an opening of the housing with a housing cover provided with an outward flange ; and screwing step for screwing the housing to the housing cover, the outward flange and the bearing device side of the housing cover the housing coated with opening by front Kikatamitai cover And a mounting step of mounting the bearing sensor to the outer peripheral surface by fastening the casing cover to the outer peripheral surface by bolting to the outer peripheral surface of the bearing device . 請求項１〜４のいずれか１項の軸受センサの取付構造を備えたことを特徴とするセンサ付軸受装置。A bearing device with a sensor, comprising the mounting structure for a bearing sensor according to any one of claims 1 to 4.
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