JPS58156364U

JPS58156364U - electromagnetic drive device

Info

Publication number: JPS58156364U
Application number: JP5423382U
Authority: JP
Inventors: 徐　永三
Original assignee: 秀達電機「しや」股「あ」有限公司
Priority date: 1982-04-13
Filing date: 1982-04-13
Publication date: 1983-10-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例である電磁駆動装置を示す
断面図、第２図は回転磁極体の分解図、第３図は出力回
転子の分解図、第４図は第１図に示す実施例に用いられ
る電気回路図、第５Ａ図および第５Ｂ図はそれぞれ回転
磁極体の磁路を示す説明図である。図において、１は駆動機構部、２は電動機部、。３は制動装置、１１は回転磁極体、１２は出力回転子、
１３は渦電流発生体、１４は出力軸、１５は出カバネル
体、１１１は第１磁極体、１１２は第２磁極体、１１３
は外磁掻体、１１４は磁極コイル、３１は制動コイル、
２２は駆動軸、２３は後端板、２３Ａは中間支持板、２
３Ｂは前端板をそれぞれ示す。Figure 1 is a sectional view showing an electromagnetic drive device that is an embodiment of this invention, Figure 2 is an exploded view of the rotating magnetic pole body, Figure 3 is an exploded view of the output rotor, and Figure 4 is the same as Figure 1. The electrical circuit diagrams used in the illustrated embodiment, FIGS. 5A and 5B, are explanatory diagrams each showing the magnetic path of the rotating magnetic pole body. In the figure, 1 is a drive mechanism section, and 2 is an electric motor section. 3 is a braking device, 11 is a rotating magnetic pole body, 12 is an output rotor,
13 is an eddy current generator, 14 is an output shaft, 15 is an output panel body, 111 is a first magnetic pole body, 112 is a second magnetic pole body, 113
114 is a magnetic pole coil, 31 is a braking coil,
22 is a drive shaft, 23 is a rear end plate, 23A is an intermediate support plate, 2
3B indicates the front end plate.

Claims

[Scope of utility model registration request]

(1) An electromagnetic device comprising a rotating magnetic body that is connected to the drive shaft of an electric motor and rotates, and an output rotor that has a non-magnetically conductive and highly conductive cylindrical eddy current generator and is installed on the output shaft. In the drive device, the rotating magnetic body includes a first pole piece having a boss portion and a panel body formed on a periphery of the body so that a plurality of first magnetic pole pieces made of a magnetically permeable material protrude at equal intervals in an axial direction. a plurality of L-shaped second pole pieces of magnetically conductive material arranged alternately with each first pole piece between each of the first pole pieces; A boss portion in which one piece of the L-shaped magnetic pole piece is arranged radially such that the other piece of the L-shaped piece projects in the axial direction, and the other end is connected to the panel body of the first magnetic pole piece. a second magnetic pole piece having a second magnetic pole piece, and a first gap formed between the first magnetic pole piece and the second magnetic pole piece so as to cover the outer peripheral surfaces of the first magnetic pole piece and the second magnetic pole piece; a cylindrical outer magnetic pole body made of a magnetically conductive material fixed to the first magnetic pole body; and a boss of the second magnetic pole body such that the outer periphery is covered by the first magnetic pole piece and the second magnetic pole piece. a magnetic pole coil fixedly disposed on an outer periphery of the output rotor, and the cylindrical eddy current generator of the output rotor is freely inserted into the first gap.

(2) a rear end plate that shields the outer end of the motor and supports the outer end of the drive shaft; and a rear end plate that is arranged to partition the motor and the rotating magnetic pole body and supports the inner end of the drive shaft. an intermediate support plate that supports the output rotor; a front end plate that is arranged so as to shield the output side of the output rotor and that supports the output shaft through the output shaft; 2. The electromagnetic drive device according to claim 1, further comprising a casing formed to securely support the outer periphery on the inside.

(3) the rear end plate includes an air inlet hole, the intermediate support plate includes an air flow hole, and an air passage formed between the electric motor and the casing; an introduction plate for introducing the first magnetic pole body into the panel body, the panel body of the first magnetic pole body includes a space facing the air circulation hole, and the space and the second magnetic pole The air is arranged so as to communicate with the space inside the boss portion of the body, and is formed between the outer magnetic pole body and the intermediate support plate and between the outer circumferential surface of the outer magnetic pole body and the casing, respectively. 3. The electromagnetic drive device according to claim 2, further comprising a flow path, and wherein the front end plate includes an air outlet facing the air flow path.

(4) a brake plate disposed on the outside of the front end plate and fixed to a portion of the output shaft protruding outside the front end plate; a brake drum installed on the outer peripheral edge of the front end plate; The electromagnetic drive device according to claim 2, which includes a braking coil installed between the front end plate and the braking drum.