JPH0380367U - - Google Patents
Info
- Publication number
- JPH0380367U JPH0380367U JP14029489U JP14029489U JPH0380367U JP H0380367 U JPH0380367 U JP H0380367U JP 14029489 U JP14029489 U JP 14029489U JP 14029489 U JP14029489 U JP 14029489U JP H0380367 U JPH0380367 U JP H0380367U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- housing
- magnetic
- magnetic circuit
- detecting device
- 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
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Regulating Braking Force (AREA)
Description
第１図は本考案の一実施例を示す要部側断面図
、第２図は上記実施例の制動特性、摩擦熱温度上
昇特性、感温磁性材料特性、及び磁気吸引力との
関係を示す図、第３図は本考案の他の実施例を示
す要部側断面図、第４図は従来の回転検出装置を
示す側断面図、第５図は従来のスプリング式の制
動特性を示す図、第６図は回転検出装置に本来必
要とする制動特性を示す図である。
１……回転検出装置、２……ハウジング、５…
…ロータ、７……入力回転軸、１０……磁気感応
素子、１３……スラストワツシヤ、１４……スプ
リング、１５，１８……感温磁性材料、１６……
制動磁石、１７，１９……軸受けメタル。
Fig. 1 is a side sectional view of the main part showing an embodiment of the present invention, and Fig. 2 shows the relationship between the braking characteristics, friction heat temperature rise characteristics, temperature-sensitive magnetic material characteristics, and magnetic attraction force of the above embodiment. 3 is a side sectional view of the main part showing another embodiment of the present invention, FIG. 4 is a side sectional view showing a conventional rotation detection device, and FIG. 5 is a diagram showing the braking characteristics of a conventional spring type. , FIG. 6 is a diagram showing the braking characteristics originally required for the rotation detection device. 1... Rotation detection device, 2... Housing, 5...
... Rotor, 7 ... Input rotating shaft, 10 ... Magnetic sensing element, 13 ... Thrust washer, 14 ... Spring, 15, 18 ... Temperature-sensitive magnetic material, 16 ...
Braking magnet, 17, 19...bearing metal.
Claims (1)
を有するロータを回転自在に配設し、このロータ
をカツプリングを介して回転出力源に接続してな
る回転検出装置において、 少なくとも上記ハウジング又はロータのいずれ
か一方に制動磁石を設け、この制動磁石を含む磁
気回路を上記ハウジング及びロータを跨いで形成
し、この磁気回路において生じる吸引力により上
記ロータをハウジングに圧接させると共に、上記
磁気回路中に、上記ロータとハウジングとの圧接
部に生ずる熱によつて透磁率が降下する感温磁性
材料を介設したことを特徴とする回転検出装置。[Claims for Utility Model Registration] In a rotation detecting device, a rotor having a magnetic force is rotatably disposed in a housing in close proximity to a magnetic sensing element, and the rotor is connected to a rotational output source via a coupling. A braking magnet is provided on at least one of the housing or the rotor, a magnetic circuit including the braking magnet is formed across the housing and the rotor, and the rotor is brought into pressure contact with the housing by the attractive force generated in the magnetic circuit. . A rotation detecting device, characterized in that a temperature-sensitive magnetic material whose magnetic permeability decreases due to heat generated at a press-contact portion between the rotor and the housing is interposed in the magnetic circuit.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14029489U JPH0725700Y2 (en) | 1989-12-05 | 1989-12-05 | Rotation detector |
| US07/596,132 US5543672A (en) | 1989-10-18 | 1990-10-11 | Rotation detecting device with magnet brake |
| DE4032985A DE4032985C2 (en) | 1989-10-18 | 1990-10-17 | Rotation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14029489U JPH0725700Y2 (en) | 1989-12-05 | 1989-12-05 | Rotation detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380367U true JPH0380367U (en) | 1991-08-16 |
| JPH0725700Y2 JPH0725700Y2 (en) | 1995-06-07 |
Family
ID=31687277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14029489U Expired - Lifetime JPH0725700Y2 (en) | 1989-10-18 | 1989-12-05 | Rotation detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725700Y2 (en) |
-
1989
- 1989-12-05 JP JP14029489U patent/JPH0725700Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725700Y2 (en) | 1995-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |