KR960025354A

KR960025354A - Headdrum assembly

Info

Publication number: KR960025354A
Application number: KR1019940037249A
Authority: KR
Inventors: 김금모
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1994-12-27
Filing date: 1994-12-27
Publication date: 1996-07-20

Abstract

본 발명은 헤드드럼 조립체를 개시한다.The present invention discloses a headdrum assembly.

본 발명은, 그 상단부에 드럼모터의 고정자가 고정 설치된 고정축과; 고정축의 하단부에 압입되며, 그 중심 내면에는 원추형 삽입홈이 마련된 하부드럼과; 회전축의 상부에 회전 가능하게 설치되고, 그 상부에 드럼모터의 회전자가 고정 설치되며, 그 하부 중심면에는 상기 하부드럼이 원추형 삽입홈에 삽입되는 원추형 지지보스가 돌출 설치된 상부드럼과; 하부드럼의 원추형 삽입홈 내면에 마련되는 원추형 피에조 베어링;을 포함하여 된 것으로서, 기존 헤드드럼에 사용하는 구름 베어링이나 기름등을 사용하지 않음으로써, 진동 및 오염을 방지하여 화질의 열화를 방지할 수 있으며, 특히 베어링면의 마찰이 거의 발생되지 않아 모터의 과부하를 방지할 수 있는 등 많은 효과가 있다.The present invention, the fixed shaft and the stator of the drum motor is fixed to the upper end; A lower drum press-fitted to the lower end of the fixed shaft, the center inner surface of which is provided with a conical insertion groove; An upper drum rotatably installed at an upper portion of the rotating shaft, and a rotor of the drum motor fixedly installed at an upper portion thereof, and an upper drum having a conical support boss protruding from the lower central surface thereof into which the lower drum is inserted into the conical insertion groove; Conical piezo bearings provided on the inner surface of the conical insertion groove of the lower drum, which do not use rolling bearings or oil used in the existing head drum, can prevent vibration and contamination, thereby preventing deterioration of image quality. In particular, since the friction of the bearing surface is hardly generated, there are many effects such as preventing overload of the motor.

따라서, 이를 채용한 테이프 레코더의 신뢰성을 향상시킬 수 있는 잇점이 있다.Therefore, there is an advantage that the reliability of the tape recorder employing the same can be improved.

Description

Headdrum assembly

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 일반적인 미끄럼 베어링 방식을 채용한 헤드드럼 조립체의 단면도, 제3도는 본 발명에 따른 헤드드럼 조립체의 단면도, 제4도는 피에조 베어링에 의해 생성되는 공기막을 통한 하중의 지지능력을 보인 분포도.2 is a cross-sectional view of a head drum assembly employing a general sliding bearing method, FIG. 3 is a cross-sectional view of a head drum assembly according to the present invention, and FIG. 4 is a distribution diagram showing a load capacity of an air film generated by a piezo bearing.

Claims

A fixed shaft having the stator of the drum motor fixed to the upper end thereof; A lower drum press-fitted to the lower end of the fixed shaft, the center inner surface of which is provided with a conical insertion groove; An upper drum rotatably installed on an upper portion of the rotating shaft, a rotor of the drum motor fixedly installed on an upper portion thereof, and an upper drum on which a lower drum is inserted into a conical support groove into which the lower drum is inserted into the conical insertion groove; And a conical piezo bearing provided on an inner surface of the conical insertion groove of the lower drum.

The head drum assembly according to claim 1, further comprising a bearing interposed between the upper end of the rotating shaft and the rotor of the drum motor, the bearing supporting the load in the axial direction of the upper drum.

3. The head drum assembly according to claim 2, wherein the bearing is a herringbone grub thrust bearing having a herringbone-shaped groove formed on an inner surface thereof.

The head drum assembly according to claim 2, wherein the bearing is a plate-shaped piezo bearing.

※ Note: The disclosure is based on the initial application.