JPH02103532U

JPH02103532U -

Info

Publication number: JPH02103532U
Application number: JP1989013222U
Authority: JP
Priority date: 1989-02-07
Filing date: 1989-02-07
Publication date: 1990-08-17

Description

[Brief explanation of drawings]

第１図はこの考案のローターを装備した渦電流
式減速装置の一例における要部を示す断面図、第
２図ａはこの考案の実施によるローターの要部を
拡大して示す断面図、第２図ｂは第２図ａのＡ−
Ａ線上の断面図、第２図ｃは第２図ａのＢ−Ｂ線
上の断面図、第３図ａは他の実施例におけるロー
ターの要部を拡大して示す断面図、第３図ｂは第
３図ａのＡ−Ａ線上の断面図、第３図ｃは第３図
ａの右側面図、第４図はローターの円筒部の内周
面に発生する渦電流の流れを示す説明図で、ａ図
は従来装置の場合、ｂ図は本考案装置の場合を示
す、第５図は本考案装置と従来装置を大型トラツ
クの減速装置として使用した場合の車両速度と制
動トルクとの関係を示すグラフである。１……ローター、２……円筒部、３，５……良
導電性リング、４，６……良導電性スロツト、７
……回転軸、８……永久磁石、９……磁石支持リ
ング、１０……磁気シールドケーシング、１０−
１……ケーシング部分、１１……案内軸、１２…
…エアーシリンダ、１３……ピストンロツド。 FIG. 1 is a cross-sectional view showing the main parts of an example of an eddy current speed reduction device equipped with the rotor of this invention, FIG. Figure b is A- in Figure 2 a.
2c is a sectional view taken along the line B-B of FIG. 2a, FIG. 3a is an enlarged sectional view showing the main parts of the rotor in another embodiment, and FIG. 3b is a cross-sectional view taken along the line A-A in FIG. 3a, FIG. 3c is a right side view of FIG. 3a, and FIG. In the figures, Figure a shows the case of the conventional device, Figure B shows the case of the device of the present invention, and Figure 5 shows the relationship between vehicle speed and braking torque when the device of the present invention and the conventional device are used as a deceleration device for a large truck. It is a graph showing a relationship. DESCRIPTION OF SYMBOLS 1... Rotor, 2... Cylindrical part, 3, 5... Good conductive ring, 4, 6... Good conductive slot, 7
... Rotating shaft, 8 ... Permanent magnet, 9 ... Magnet support ring, 10 ... Magnetic shield casing, 10-
1... Casing part, 11... Guide shaft, 12...
...Air cylinder, 13...Piston rod.

Claims

[Scope of utility model registration request]

A magnet support ring, which has multiple permanent magnets around it so that the polarities of adjacent magnets are opposite to each other, is supported on a rotating shaft with a rotor fitted to the end, and the pole faces of the permanent magnets are aligned as required. In a reduction gear device that faces the cylindrical part of the rotor with an air gap and is equipped with a control mechanism that controls eddy currents generated in the rotor by a magnetic circuit of permanent magnets, highly conductive rings are installed at both ends of the inner peripheral surface of the cylindrical rotor part. A plurality of well-conductive slots are arranged circumferentially between the well-conductive rings in parallel to the axis of the rotating shaft, and both ends of each slot are connected to the ring, and an eddy current path is formed on the inner peripheral surface of the cylindrical part. The rotor of the formed eddy current reduction device.