JPH0425053U

JPH0425053U -

Info

Publication number: JPH0425053U
Application number: JP6666790U
Authority: JP
Priority date: 1990-06-22
Filing date: 1990-06-22
Publication date: 1992-02-28
Anticipated expiration: 2005-06-22
Also published as: JP2550064Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す断面図、第２
図は第１図中の回転制御手段の電気系の一例を示
す回路図、第３図は他の実施例におけるアクチユ
エータ部分を示す斜視図、第４図はアクチユエー
タに装置した場合の拡大機構の一例を示す説明図
、第５図は防振器の使用状況の一例を示す説明図
である。１……第１の支持容器、１Ａ……開口部、１Ｂ
……有底部、２……第２の支持容器としてのロー
ドコラム、３……ボールネジ機構、３Ａ……ねじ
軸、４……回転制動手段、６，７……取付部、１
２……回転円盤、１３……制動用円盤、１４……
ガイド機構、１５……超磁歪形アクチユエータ、
１５Ａ……超磁歪素子、１５Ｂ……制御コイル、
２０……板状摩擦片、３０……圧電アクチユエー
タ、３１……積層形圧電素子。 Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a circuit diagram showing an example of the electrical system of the rotation control means in Fig. 1, Fig. 3 is a perspective view showing the actuator part in another embodiment, and Fig. 4 is an example of the enlargement mechanism when installed in the actuator. FIG. 5 is an explanatory diagram showing an example of how the vibration isolator is used. 1...First support container, 1A...Opening, 1B
... Bottomed part, 2 ... Load column as second support container, 3 ... Ball screw mechanism, 3A ... Screw shaft, 4 ... Rotation braking means, 6, 7 ... Mounting part, 1
2... Rotating disc, 13... Braking disc, 14...
Guide mechanism, 15... giant magnetostrictive actuator,
15A... giant magnetostrictive element, 15B... control coil,
20... Plate friction piece, 30... Piezoelectric actuator, 31... Laminated piezoelectric element.

Claims

[Claims for Utility Model Registration] (1) A cylindrical first support container with an open end, and a central axis of the first support container that is loosely inserted through the opening of the first support container. a cylindrical second support container that allows only reciprocating motion along the central axis; and a ball screw mechanism that converts vibrations propagated to the second support container from the outside in a direction along the central axis into rotational motion. , a bottomed part formed at the other end of the first support container and rotatably supporting the screw shaft of the ball screw mechanism; a rotation braking means connected to the ball screw mechanism; and a mounting portion provided on each of the two support containers, and the rotational braking means includes a rotating disk connected to the screw shaft of the ball screw mechanism, and a braking disk installed opposite to the rotating disk. , a guide mechanism that regulates the rotational movement of the braking disk and guides the reciprocating movement toward the rotating disk, and a plurality of giant magnetostrictive actuators that press the braking disk toward the rotating disk as necessary. A vibration isolator characterized by comprising: (2) The vibration isolator according to claim 1, wherein the giant magnetostrictive actuator includes a giant magnetostrictive element formed in a columnar shape and a control coil wound around the giant magnetostrictive element. . (3) A cylindrical first support container with an open end, and a reciprocating motion only along the central axis of the first support container that is loosely inserted through the opening of the first support container. a second support container having a permissible cylindrical shape;
The second support container includes a ball screw mechanism that converts vibrations in a direction along the central axis propagated from the outside into rotational motion; a rotatably supported bottomed part, a rotation braking means connected to the ball screw mechanism, the first support container and the second support container;
a rotating disc that connects the rotary braking means to the screw shaft of the ball screw mechanism; a braking disc that is installed opposite to the rotating disc; Consisting of a guide mechanism that regulates the rotational movement of the braking disc and guides its reciprocating movement toward the rotating disc, and a plurality of piezoelectric actuators that press the braking disc toward the rotating disc as necessary. A vibration isolator characterized by: (4) The vibration isolator according to claim 3, wherein the piezoelectric actuator is mainly composed of a laminated piezoelectric element formed by laminating a plurality of piezoelectric elements. (5) The vibration isolator according to claim 1, 2, 3, or 4, characterized in that a plate-shaped friction piece is provided on a surface of the rotating disk that faces the braking disk. (6) The vibration isolator according to claim 1, 2, 3, or 4, characterized in that a plate-shaped friction piece is provided on a surface of the braking disk that faces the rotating disk.