JP2017187061A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2017187061A5 JP2017187061A5 JP2016074109A JP2016074109A JP2017187061A5 JP 2017187061 A5 JP2017187061 A5 JP 2017187061A5 JP 2016074109 A JP2016074109 A JP 2016074109A JP 2016074109 A JP2016074109 A JP 2016074109A JP 2017187061 A5 JP2017187061 A5 JP 2017187061A5
- Authority
- JP
- Japan
- Prior art keywords
- seal
- inner ring
- cage
- outer ring
- annular body
- 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
Links
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 230000002093 peripheral Effects 0.000 claims description 7
- 230000005674 electromagnetic induction Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 230000000149 penetrating Effects 0.000 description 3
Description
上記課題を解決するために、この発明の第一態様であるワイヤレスセンサ付き軸受は、下記の構成(1) 〜(7) を有する。
(1) 外周面に内輪軌道面を有する内輪と、前記内輪軌道面と対向配置される外輪軌道面を内周面に有する外輪と、前記内輪軌道面と前記外輪軌道面とで形成される軌道に配置された転動体と、を有する。
(2) 環状体からなる保持器であって、前記転動体を回転自在に保持するポケットを有し、前記ポケットは前記環状体の周面を貫通し、前記ポケットは前記環状体の周方向に複数個形成された保持器を有する。隣り合う前記ポケット間の部分に、軸方向に伸びる貫通穴が形成されている。
(3) 複数の磁石であって、前記保持器の前記貫通穴に一つずつ、前記環状体の周方向で各磁石のＮ極とＳ極が隣り合うように固定された磁石を有する。
(4) 前記内輪と前記外輪との間を軸方向一端部で密封する第一シールであって、前記保持器に対して相対回転する第一シールと、前記第一シールの前記磁石との対向面に固定されたコイルと、前記内輪と前記外輪との間を軸方向他端部で密封する第二シールと、を有する。
(5) 前記内輪、前記外輪、および前記第一シールのいずれかに設置されたセンサを有する。
(6) 前記第一シールに形成された回路部であって、前記磁石と前記コイルとの相対回転による電磁誘導で前記コイルに生じた電流を電源供給部へ供給する電源回路と、前記センサで検出された検出情報から検出値を演算する演算回路と、演算結果を示す無線信号を作成する無線回路と、を備えた回路部を有する。
(7) 前記無線信号を送信するアンテナであって、前記第一シールに固定されたアンテナを有する。
この発明の第二態様であるワイヤレスセンサ付き軸受は、上記構成(1) (4) 〜(7) と下記の構成(12)(13)を有する。
(12)環状体からなる保持器であって、前記転動体を回転自在に保持するポケットを有し、前記ポケットは前記環状体の周面を貫通し、前記ポケットは前記環状体の周方向に複数個形成された保持器を有する。隣り合う前記ポケット間の部分に、軸方向一端面から軸方向に凹む凹部が形成されている。
(13)複数の磁石であって、前記保持器の前記凹部に一つずつ、前記環状体の周方向で各磁石のＮ極とＳ極が隣り合うように固定された磁石を有する。
この発明の第三態様であるワイヤレスセンサ付き軸受は、上記構成(1) (4) 〜(7) と下記の構成(22)〜(24)を有する。
(22)環状体からなる保持器であって、前記転動体を回転自在に保持するポケットを有し、前記ポケットは前記環状体の周面を貫通し、前記ポケットは前記環状体の周方向に複数個形成された保持器を有する。
(23)複数の磁石であって、前記保持器の前記ポケット同士の間に一つずつ、前記環状体の周方向で各磁石のＮ極とＳ極が隣り合うように固定された磁石を有する。
(24)円環状の金属板からなり、前記保持器内の前記軸方向他端部側に配置されたヨークを有する。前記ヨークが前記磁石の軸方向端面と接触し、前記保持器の底部と前記磁石との間に前記ヨークが存在する。
In order to solve the above problems, a bearing with a wireless sensor which is a first aspect of the present invention has the following configurations (1) to (7).
(1) A track formed by an inner ring having an inner ring raceway surface on an outer peripheral surface, an outer ring having an outer ring raceway surface disposed opposite to the inner ring raceway surface, and the inner ring raceway surface and the outer ring raceway surface. And a rolling element disposed in the.
(2) A cage made of an annular body, having a pocket for rotatably holding the rolling element, the pocket penetrating the circumferential surface of the annular body, and the pocket extending in the circumferential direction of the annular body A plurality of cages are formed. A through hole extending in the axial direction is formed in a portion between the adjacent pockets.
(3) A plurality of magnets, each of which is fixed to the through hole of the retainer so that the north and south poles of each magnet are adjacent to each other in the circumferential direction of the annular body.
(4) A first seal that seals between the inner ring and the outer ring at one end in the axial direction, and the first seal that rotates relative to the retainer and the magnet of the first seal are opposed to each other A coil fixed to the surface, and a second seal that seals between the inner ring and the outer ring at the other end in the axial direction.
(5) It has a sensor installed on any of the inner ring, the outer ring, and the first seal.
(6) A circuit unit formed on the first seal, the power source circuit supplying current generated in the coil by electromagnetic induction due to relative rotation between the magnet and the coil to the power supply unit, and the sensor The circuit unit includes an arithmetic circuit that calculates a detection value from detected detection information, and a wireless circuit that generates a wireless signal indicating a calculation result.
(7) An antenna for transmitting the radio signal, the antenna being fixed to the first seal.
The bearing with a wireless sensor according to the second aspect of the present invention has the above configurations (1) (4) to (7) and the following configurations (12) and (13).
(12) A cage made of an annular body, having a pocket for rotatably holding the rolling element, the pocket penetrating the circumferential surface of the annular body, and the pocket in the circumferential direction of the annular body A plurality of cages are formed. A recess that is recessed in the axial direction from one axial end surface is formed in a portion between the adjacent pockets.
(13) A plurality of magnets, each of which is fixed to the concave portion of the retainer so that the north and south poles of each magnet are adjacent to each other in the circumferential direction of the annular body.
The bearing with a wireless sensor according to the third aspect of the present invention has the above configurations (1) (4) to (7) and the following configurations (22) to (24).
(22) A cage made of an annular body, having a pocket for rotatably holding the rolling element, the pocket penetrating the circumferential surface of the annular body, and the pocket in the circumferential direction of the annular body A plurality of cages are formed.
(23) A plurality of magnets, each of which is fixed between the pockets of the cage, such that the N pole and the S pole of each magnet are adjacent to each other in the circumferential direction of the annular body. .
(24) A yoke made of an annular metal plate and disposed on the other axial end side in the cage. The yoke contacts the axial end face of the magnet, and the yoke exists between the bottom of the cage and the magnet.
Claims (4)
前記内輪軌道面と対向配置される外輪軌道面を内周面に有する外輪と、
前記内輪軌道面と前記外輪軌道面とで形成される軌道に配置された転動体と、
環状体からなる保持器であって、前記転動体を回転自在に保持するポケットを有し、前記ポケットは前記環状体の周面を貫通し、前記ポケットは前記環状体の周方向に複数個形成され、隣り合う前記ポケット間の部分に、軸方向に伸びる貫通穴が形成された保持器と、
複数の磁石であって、前記保持器の前記貫通穴に一つずつ、前記環状体の周方向で各磁石のＮ極とＳ極が隣り合うように固定された磁石と、
前記内輪と前記外輪との間を軸方向一端部で密封する第一シールであって、前記保持器に対して相対回転する第一シールと、
前記第一シールの前記磁石との対向面に固定されたコイルと、
前記内輪と前記外輪との間を軸方向他端部で密封する第二シールと、
前記内輪、前記外輪、および前記第一シールのいずれかに設置されたセンサと、
前記第一シールに形成された回路部であって、前記磁石と前記コイルとの相対回転による電磁誘導で前記コイルに生じた電流を電源供給部へ供給する電源回路と、前記センサで検出された検出情報から検出値を演算する演算回路と、演算結果を示す無線信号を作成する無線回路と、を有する回路部と、
前記無線信号を送信するアンテナであって、前記第一シールに固定されたアンテナと、を有するワイヤレスセンサ付き軸受。 An inner ring having an inner ring raceway surface on the outer peripheral surface;
An outer ring having, on the inner peripheral surface, an outer ring raceway surface disposed opposite to the inner ring raceway surface;
A rolling element disposed on a track formed by the inner ring raceway surface and the outer ring raceway surface;
A cage made of an annular body, having a pocket for rotatably holding the rolling element, wherein the pocket penetrates the circumferential surface of the annular body, and a plurality of pockets are formed in the circumferential direction of the annular body A cage in which a through hole extending in the axial direction is formed in a portion between the adjacent pockets ;
A plurality of magnets, one by one in the through-hole of the cage, and fixed so that the north and south poles of each magnet are adjacent to each other in the circumferential direction of the annular body;
A first seal that seals between the inner ring and the outer ring at one axial end, and a first seal that rotates relative to the cage;
A coil fixed to a surface of the first seal facing the magnet;
A second seal that seals between the inner ring and the outer ring at the other axial end;
A sensor installed on any of the inner ring, the outer ring, and the first seal;
A circuit unit formed on the first seal, the power source circuit supplying current generated in the coil to the power supply unit by electromagnetic induction caused by relative rotation between the magnet and the coil, and detected by the sensor A circuit unit having an arithmetic circuit for calculating a detection value from detection information, and a radio circuit for creating a radio signal indicating a calculation result;
A wireless sensor-equipped bearing having an antenna for transmitting the radio signal, the antenna being fixed to the first seal.
前記内輪軌道面と対向配置される外輪軌道面を内周面に有する外輪と、
前記内輪軌道面と前記外輪軌道面とで形成される軌道に配置された転動体と、
環状体からなる保持器であって、前記転動体を回転自在に保持するポケットを有し、前記ポケットは前記環状体の周面を貫通し、前記ポケットは前記環状体の周方向に複数個形成され、隣り合う前記ポケット間の部分に、軸方向一端面から軸方向に凹む凹部が形成されている保持器と、
複数の磁石であって、前記保持器の前記凹部に一つずつ、前記環状体の周方向で各磁石のＮ極とＳ極が隣り合うように固定された磁石と、
前記内輪と前記外輪との間を軸方向一端部で密封する第一シールであって、前記保持器に対して相対回転する第一シールと、
前記第一シールの前記磁石との対向面に固定されたコイルと、
前記内輪と前記外輪との間を軸方向他端部で密封する第二シールと、
前記内輪、前記外輪、および前記第一シールのいずれかに設置されたセンサと、
前記第一シールに形成された回路部であって、前記磁石と前記コイルとの相対回転による電磁誘導で前記コイルに生じた電流を電源供給部へ供給する電源回路と、前記センサで検出された検出情報から検出値を演算する演算回路と、演算結果を示す無線信号を作成する無線回路と、を有する回路部と、
前記無線信号を送信するアンテナであって、前記第一シールに固定されたアンテナと、を有するワイヤレスセンサ付き軸受。 An inner ring having an inner ring raceway surface on the outer peripheral surface;
An outer ring having, on the inner peripheral surface, an outer ring raceway surface disposed opposite to the inner ring raceway surface;
A rolling element disposed on a track formed by the inner ring raceway surface and the outer ring raceway surface;
A cage made of an annular body, having a pocket for rotatably holding the rolling element, wherein the pocket penetrates the circumferential surface of the annular body, and a plurality of pockets are formed in the circumferential direction of the annular body And a cage in which a recess recessed in the axial direction from one axial end surface is formed in a portion between the adjacent pockets , and
A plurality of magnets, each fixed to the concave portion of the cage, such that the N pole and S pole of each magnet are adjacent to each other in the circumferential direction of the annular body;
A first seal that seals between the inner ring and the outer ring at one axial end, and a first seal that rotates relative to the cage;
A coil fixed to a surface of the first seal facing the magnet;
A second seal that seals between the inner ring and the outer ring at the other axial end;
A sensor installed on any of the inner ring, the outer ring, and the first seal;
A circuit unit formed on the first seal, the power source circuit supplying current generated in the coil to the power supply unit by electromagnetic induction caused by relative rotation between the magnet and the coil, and detected by the sensor A circuit unit having an arithmetic circuit for calculating a detection value from detection information, and a radio circuit for creating a radio signal indicating a calculation result;
A wireless sensor-equipped bearing having an antenna for transmitting the radio signal, the antenna being fixed to the first seal.
前記内輪軌道面と対向配置される外輪軌道面を内周面に有する外輪と、
前記内輪軌道面と前記外輪軌道面とで形成される軌道に配置された転動体と、
環状体からなる保持器であって、前記転動体を回転自在に保持するポケットを有し、前記ポケットは前記環状体の周面を貫通し、前記ポケットは前記環状体の周方向に複数個形成されている保持器と、
複数の磁石であって、前記保持器の隣り合う前記ポケット同士の間に一つずつ、前記環状体の周方向で各磁石のＮ極とＳ極が隣り合うように固定された磁石と、
前記内輪と前記外輪との間を軸方向一端部で密封する第一シールであって、前記保持器に対して相対回転する第一シールと、
前記第一シールの前記磁石との対向面に固定されたコイルと、
前記内輪と前記外輪との間を軸方向他端部で密封する第二シールと、
円環状の金属板からなり、前記保持器内の前記軸方向他端部側に配置されたヨークと、
前記内輪、前記外輪、および前記第一シールのいずれかに設置されたセンサと、
前記第一シールに形成された回路部であって、前記磁石と前記コイルとの相対回転による電磁誘導で前記コイルに生じた電流を電源供給部へ供給する電源回路と、前記センサで検出された検出情報から検出値を演算する演算回路と、演算結果を示す無線信号を作成する無線回路と、を有する回路部と、
前記無線信号を送信するアンテナであって、前記第一シールに固定されたアンテナと、を有し、
前記ヨークが前記磁石の軸方向端面と接触し、前記保持器の底部と前記磁石との間に前記ヨークが存在するワイヤレスセンサ付き軸受。 An inner ring having an inner ring raceway surface on the outer peripheral surface;
An outer ring having, on the inner peripheral surface, an outer ring raceway surface disposed opposite to the inner ring raceway surface;
A rolling element disposed on a track formed by the inner ring raceway surface and the outer ring raceway surface;
A cage made of an annular body, having a pocket for rotatably holding the rolling element, wherein the pocket penetrates the circumferential surface of the annular body, and a plurality of pockets are formed in the circumferential direction of the annular body A cage,
A plurality of magnets, each of which is fixed between the adjacent pockets of the cage so that the N pole and S pole of each magnet are adjacent to each other in the circumferential direction of the annular body;
A first seal that seals between the inner ring and the outer ring at one axial end, and a first seal that rotates relative to the cage;
A coil fixed to a surface of the first seal facing the magnet;
A second seal that seals between the inner ring and the outer ring at the other axial end;
A yoke made of an annular metal plate and disposed on the other axial end side in the cage;
A sensor installed on any of the inner ring, the outer ring, and the first seal;
A circuit unit formed on the first seal, the power source circuit supplying current generated in the coil to the power supply unit by electromagnetic induction caused by relative rotation between the magnet and the coil, and detected by the sensor A circuit unit having an arithmetic circuit for calculating a detection value from detection information, and a radio circuit for creating a radio signal indicating a calculation result;
Wherein an antenna for transmitting a radio signal, have a, an antenna fixed to the first seal,
A bearing with a wireless sensor , wherein the yoke is in contact with an axial end surface of the magnet, and the yoke exists between a bottom portion of the cage and the magnet .
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016074109A JP6264393B2 (en) | 2016-04-01 | 2016-04-01 | Bearing with wireless sensor |
| EP17775598.0A EP3421830B1 (en) | 2016-04-01 | 2017-03-31 | Bearing with wireless sensor |
| PCT/JP2017/013777 WO2017171067A1 (en) | 2016-04-01 | 2017-03-31 | Bearing with wireless sensor |
| US16/073,896 US10408269B2 (en) | 2016-04-01 | 2017-03-31 | Wireless sensor-equipped bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016074109A JP6264393B2 (en) | 2016-04-01 | 2016-04-01 | Bearing with wireless sensor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2017187061A JP2017187061A (en) | 2017-10-12 |
| JP2017187061A5 true JP2017187061A5 (en) | 2017-11-24 |
| JP6264393B2 JP6264393B2 (en) | 2018-01-24 |
Family
ID=60046284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016074109A Active JP6264393B2 (en) | 2016-04-01 | 2016-04-01 | Bearing with wireless sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6264393B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7074500B2 (en) | 2018-02-23 | 2022-05-24 | Ntn株式会社 | bearing |
| CN115901253B (en) * | 2022-10-09 | 2024-03-05 | 南通理工学院 | Wireless sensor with power-off protection and reminding functions |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0380120U (en) * | 1989-12-05 | 1991-08-16 | ||
| JP2003097582A (en) * | 2001-09-27 | 2003-04-03 | Nsk Ltd | Bearing device with sensor |
| JP2004353735A (en) * | 2003-05-28 | 2004-12-16 | Nsk Ltd | Rotating device with sensor and its forming method |
| JP2005180985A (en) * | 2003-12-17 | 2005-07-07 | Nsk Ltd | Load measuring device for rolling bearing unit |
| JP5857470B2 (en) * | 2011-06-24 | 2016-02-10 | 日本精工株式会社 | Rolling bearing device with sensor |
| JP2015059620A (en) * | 2013-09-19 | 2015-03-30 | 日本精工株式会社 | Rolling bearing |
-
2016
- 2016-04-01 JP JP2016074109A patent/JP6264393B2/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10408269B2 (en) | Wireless sensor-equipped bearing | |
| JP2017187061A5 (en) | ||
| JP2007198847A (en) | Rolling bearing with rotation sensor | |
| JP2018003883A (en) | Bearing device for wheel | |
| JP2013007672A (en) | Rolling bearing with sensor | |
| JP2006336753A (en) | Rolling bearing unit with sensor | |
| JP6264393B2 (en) | Bearing with wireless sensor | |
| JP2017187062A5 (en) | ||
| JP2017172604A (en) | Wheel bearing device | |
| JP5670539B2 (en) | Bearing unit with sensor | |
| JP2008094243A (en) | Bearing device for wheel | |
| JP6264394B2 (en) | Bearing with wireless sensor | |
| JP6264404B2 (en) | Bearing with wireless sensor | |
| JP4174652B2 (en) | Rolling bearing with sensor | |
| PL222967B1 (en) | Multistage protective seal with the magnetic fluid for rolling bearing | |
| JP2007192293A (en) | Bearing with sensor | |
| JP4371160B2 (en) | Rolling bearing with sensor | |
| CN204900521U (en) | Strip sensor's antifriction bearing , motor, vehicle and mechanical device | |
| JP2004361362A (en) | Rolling bearing with rotation sensor | |
| JP2017219120A (en) | Bearing device for wheel | |
| PL225206B1 (en) | Rolling bearing protective sealing using magnetic liquid | |
| JP5817105B2 (en) | Rolling bearings with sensors, automobiles, railway vehicles, steelmaking facilities and machine tools | |
| JP3930353B2 (en) | Rolling bearing with generator | |
| PL225537B1 (en) | Rolling bearing protective sealing using magnetic fluid | |
| JP2008116232A (en) | Magnetic encoder and rolling bearing |