JPH046288U - - Google Patents
Info
- Publication number
- JPH046288U JPH046288U JP4600590U JP4600590U JPH046288U JP H046288 U JPH046288 U JP H046288U JP 4600590 U JP4600590 U JP 4600590U JP 4600590 U JP4600590 U JP 4600590U JP H046288 U JPH046288 U JP H046288U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- eddy current
- permanent magnet
- stator
- showing
- 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
- 239000004020 conductor Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000003302 ferromagnetic material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Description
第１図は本考案の一実施例を示す要部拡大断面
図、第２図は本考案による制動トルクと回転数の
関係を示すグラフ図、第３図は本考案によるロー
タ内周表面温度と制動時間の関係を示すグラフ図
、第４図及び第５図は他の実施例を示す要部拡大
断面図、第６図は渦電流及び磁気回路の発生状態
を示す模示図、第７図は従来の実施例であるロー
タ内周表面を示す一部拡大斜視図、第８図は従来
の渦電流式リターダを示す断面図である。
図中１……渦電流式リターダ、２……回転軸、
４……ロータ、４ａ……ロータ内周表面、６……
ステータ、９……永久磁石、１２……溝、１３…
…良伝導体である。
Fig. 1 is an enlarged sectional view of main parts showing an embodiment of the present invention, Fig. 2 is a graph showing the relationship between braking torque and rotational speed according to the present invention, and Fig. 3 is a graph showing the relationship between rotor inner peripheral surface temperature and rotor according to the present invention. A graph showing the relationship between braking times, FIGS. 4 and 5 are enlarged sectional views of main parts showing other embodiments, FIG. 6 is a schematic diagram showing the state of occurrence of eddy currents and magnetic circuits, and FIG. 7 8 is a partially enlarged perspective view showing the inner peripheral surface of a rotor according to a conventional embodiment, and FIG. 8 is a sectional view showing a conventional eddy current type retarder. In the figure 1... eddy current retarder, 2... rotating shaft,
4... Rotor, 4a... Rotor inner peripheral surface, 6...
Stator, 9...Permanent magnet, 12...Groove, 13...
...It is a good conductor.
Claims (1)
該ロータに近接離間させることにより、上記ロー
タに渦電流を与えて制動力を与えるための永久磁
石を有するステータとを備えると共に、上記永久
磁石の両端部に向い合うロータ面にその周方向に
溝を形成し、該溝内に銅等の良伝導体を上記ロー
タ内周表面より内部に設けたことを特徴とする渦
電流式リターダ。 A rotor made of ferromagnetic material that is installed on the rotating shaft.
A stator is provided with a permanent magnet that is placed close to and separated from the rotor to apply an eddy current to the rotor to provide braking force, and grooves are formed in the rotor surface facing both ends of the permanent magnet in the circumferential direction thereof. An eddy current type retarder characterized in that a good conductor such as copper is provided inside the groove from the inner circumferential surface of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990046005U JP2506598Y2 (en) | 1990-04-28 | 1990-04-28 | Eddy current type retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990046005U JP2506598Y2 (en) | 1990-04-28 | 1990-04-28 | Eddy current type retarder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH046288U true JPH046288U (en) | 1992-01-21 |
| JP2506598Y2 JP2506598Y2 (en) | 1996-08-14 |
Family
ID=31560699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990046005U Expired - Fee Related JP2506598Y2 (en) | 1990-04-28 | 1990-04-28 | Eddy current type retarder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506598Y2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4826341U (en) * | 1971-08-09 | 1973-03-29 | ||
| JPS5643288U (en) * | 1979-09-12 | 1981-04-20 | ||
| JPS63131589U (en) * | 1987-02-18 | 1988-08-29 | ||
| JPH01234043A (en) * | 1988-03-14 | 1989-09-19 | Sumitomo Metal Ind Ltd | Eddy current type speed reducer |
| JPH02103533U (en) * | 1989-02-07 | 1990-08-17 |
-
1990
- 1990-04-28 JP JP1990046005U patent/JP2506598Y2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4826341U (en) * | 1971-08-09 | 1973-03-29 | ||
| JPS5643288U (en) * | 1979-09-12 | 1981-04-20 | ||
| JPS63131589U (en) * | 1987-02-18 | 1988-08-29 | ||
| JPH01234043A (en) * | 1988-03-14 | 1989-09-19 | Sumitomo Metal Ind Ltd | Eddy current type speed reducer |
| JPH02103533U (en) * | 1989-02-07 | 1990-08-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2506598Y2 (en) | 1996-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |