KR940004489B1 - Rotating drum of magnetic record player - Google Patents
Rotating drum of magnetic record player Download PDFInfo
- Publication number
- KR940004489B1 KR940004489B1 KR1019910021854A KR910021854A KR940004489B1 KR 940004489 B1 KR940004489 B1 KR 940004489B1 KR 1019910021854 A KR1019910021854 A KR 1019910021854A KR 910021854 A KR910021854 A KR 910021854A KR 940004489 B1 KR940004489 B1 KR 940004489B1
- Authority
- KR
- South Korea
- Prior art keywords
- drum
- rotating drum
- magnetic
- rotating
- shaft
- Prior art date
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sliding-Contact Bearings (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 자기기록 재생기의 회전드럼 구조 단면도.1 is a cross-sectional view of a rotating drum structure of a conventional magnetic recording player.
제2도는 본 발명의 자기기록 재생기의 회전드럼 구조 단면도.2 is a cross-sectional view of a rotating drum structure of the magnetic recording player of the present invention.
제3도는 제2도의 "가"부 확대 구조도.3 is an enlarged structural view of the "a" part of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 상부드럼 2 : 하부드럼1: upper drum 2: lower drum
10, 10' : 축 11 : 자성체10, 10 ': axis 11: magnetic material
12, 15 : 마그네트(Magnent) 13, 16 : 자성유체12, 15: Magnet 13, 16: magnetic fluid
14 : 지지체14: support
본 발명은 브이씨알 또는 디지탈 오디오 테이프 레코더(Digital Audio Tape Recorder)의 헤드드럼 조립체에 관한 것으로, 특히 회전드럼의 베어링의 구조를 개선하여 회전시 정밀도를 향상시킨 구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a head drum assembly of a V-Cal or Digital Audio Tape Recorder, and more particularly, to a structure in which a bearing of a rotating drum is improved to improve precision during rotation.
종래의 헤드드럼의 구조는 종래의 자기기록 재생기의 회전드럼 구조 단면도를 나타내는 제1도에서와 같이 회전축(10)을 중심으로 상부드럼(1)과 상부드럼(1)의 하부에 플렌지(3)와 플렌지(3)의 선단에 회전트랜스(4)가 구성되어 있고, 그 하부에는 하부드럼(2)과 하부드럼(2)의 상부중앙에 회전트랜스(4)와 마주보게 고정트랜스(5)를 설치하고 하부드럼(2)과 축(10) 사이에는 보올베어링(6)을 상하고 개재시켜 구성하였다.The conventional head drum has a flange 3 at the lower part of the upper drum 1 and the upper drum 1 around the rotating shaft 10, as shown in FIG. 1, which shows a cross-sectional view of the rotating drum structure of the conventional magnetic recording player. Rotation transformer 4 is formed at the tip of the and flange 3, and the lower portion of the lower drum 2 and the upper portion of the lower drum 2 have a fixed transformer 5 facing the rotation transformer 4. The lower drum (2) and the shaft 10 was installed between the upper and lower bowl bearings 6 were configured.
그리고 하부드럼(2)의 아래에는 모터의 회전자(7)와 이와 대향되게 모터고정자(8)를 지지대(9) 상에 설치하여 지지대(9)를 하부드럼(2)에 고정하여 구성하였다.Under the lower drum 2, the rotor 7 of the motor and the motor stator 8 were installed on the support 9 so as to face the support 9, and the support 9 was fixed to the lower drum 2.
상기한 종래의 자기기록 재생기의 회전드럼의 동작은 드럼모터(미도시)로 부터 베어링 일체형 회전축(10)으로 동력이 전달됨으로써 보올베어링(8)에 지지된 회전축(10)이 회전하며, 이에따라 회전축(10)에 고정된 모터회전자(7)와 상부드럼(1) 및 플랜지(3)이 고정된 회전트랜스(4)가 함께 회전운동을 하게된다.In the operation of the rotating drum of the conventional magnetic recording player, power is transmitted from the drum motor (not shown) to the bearing-integrated rotary shaft 10 so that the rotary shaft 10 supported by the bowl bearing 8 rotates. The motor rotor 7 fixed to the 10 and the rotation transformer 4 having the upper drum 1 and the flange 3 fixed thereon rotate together.
그러나, 상기와 같은 종래의 자기기록 재생기의 회전드럼은 동력전달용 베어링으로 보울베어링(6)(Ball Bearing)을 사용하는데 이때 사용하는 보올베어링(6)은 회전드럼이 회전할때 높은 회전정밀도가 요구되므로 정밀한 보올베어링을 사용해야 함으로써 정밀 보올베어링 적용으로 기기의 가격상승을 초래하였고, 보올베어링을 회전축(10)에 고정할때 회전축상에 홈을 형성한 후에 고정해야 함으로써 홈을 형성하는 가공과정에 어려움이 있었다.However, the rotating drum of the conventional magnetic recording player as described above uses a bowl bearing (6) as a power transmission bearing, and the bowl bearing (6) used has a high rotational precision when the rotating drum is rotated. As it is required, precision bowl bearings should be used to increase the price of equipment by applying precision bowl bearings.In the process of forming grooves by fixing grooves on the rotating shaft when fixing the ball bearings to the rotating shaft 10, There was a difficulty.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로 그 구성은 다음과 같다.The present invention is to solve the above problems and the configuration is as follows.
본 발명의 자기기록 재생기의 회전드럼 구조 단면도를 나타내는 제2도에서와 같이 상부드럼(1)과 플랜지(3)와 회전트랜스(4) 및 고정트랜스(5)와 모터회전자(7)와 지지대(9)와 모터고정자(8)는 종래와 동일한 구조를 이루며, 회전축(10)을 종래와는 다른 자성체로된 회전축(10')으로 구성하고, 종래의 보올베어링(6) 대신 자성체(11)를 설치하며, 자성체(11)사이에는 마그네트(12)를 주입시킨다.The upper drum 1, the flange 3, the rotation transformer 4, the fixed transformer 5, the motor rotor 7 and the support stand as shown in FIG. 2 showing a sectional view of the rotating drum structure of the magnetic recording player of the present invention. (9) and the motor stator (8) has the same structure as in the prior art, the rotating shaft 10 is composed of a rotating shaft 10 'made of a magnetic material different from the conventional, the magnetic body 11 instead of the conventional bowl bearing (6) It is installed, and the magnet 12 is injected between the magnetic body (11).
또한 회전축(10') 하부에는 본 발명의 자기기록 재생기의 회전드럼 구조 단면도중 "가"부 확대구조도를 나타내는 제3도에서와 같이 축(10')을 지지하는 지지체(14)상에 요홈(17)을 형성하여 요홈(17)내부에 마그네트(15)를 설치하며, 축(10')과 지지체(14) 사이에 자성유체(16)를 지지체(14)상에 형성한 다른 홈상에 주입시켜 회전드럼을 구성한다.In addition, the lower portion of the rotating shaft 10 'is provided with a groove (not shown) on a support 14 supporting the shaft 10' as shown in FIG. 17 to form a magnet (15) in the groove 17, the magnetic fluid 16 between the shaft (10 ') and the support 14 is injected into another groove formed on the support (14) Construct a rotating drum.
상기와 같은 구조로 된 본 발명의 동작은 마그네트(12)를 통하여 자성유체(13)가 축(10')과 자성체(11) 사이에서 이탈되지 않고 개재되게 하고 마그네트(12)와 자성체(11)와 자성체로 된 축(10')과 자성유체(13)사이의 상호자력에 의하여 자성유체(13)가 일정한 간격의 자성유체막을 형성하여 외부의 드럼모터로 부터 동력을 전달받아 축(10')이 회전하면서 모터의 회전자(7)와 상부드럼(1)과 플랜지(3)에 고정된 회전트랜스(4)가 함께 회전할때 매우 정밀한 회전정밀도를 가지고 안정되게 회전한다.The operation of the present invention having the structure described above allows the magnetic fluid 13 to be interposed without being separated between the shaft 10 'and the magnetic body 11 through the magnet 12 and the magnet 12 and the magnetic body 11. And the magnetic fluid 13 forms a magnetic fluid film at regular intervals by mutual magnetic force between the shaft 10 'and the magnetic fluid 13 formed of magnetic material, and receives power from an external drum motor. As the rotor 7 and the upper drum 1 and the rotating transformer 4 fixed to the flange 3 rotate together while rotating, they rotate stably with a very precise rotational precision.
이상에서와 같이 본 발명은 종래의 보올베어링 대신 자성체와 자성유체를 사용하여 자석에 의해 발생한 자력에 의하여 회전드럼이 회전할때 정밀한 회전정도를 갖도록 하고, 베어링을 설치하기 위하여 축상에 홈을 형성하는 과정이 없이 회전드럼을 간편하게 구성할 수 있는 효과가 있다.As described above, the present invention uses a magnetic body and a magnetic fluid instead of the conventional bowl bearing to have a precise rotation degree when the rotating drum rotates by the magnetic force generated by the magnet, and to form a groove on the shaft to install a bearing There is no effect that can easily configure the rotating drum.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910021854A KR940004489B1 (en) | 1991-11-30 | 1991-11-30 | Rotating drum of magnetic record player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910021854A KR940004489B1 (en) | 1991-11-30 | 1991-11-30 | Rotating drum of magnetic record player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930010861A KR930010861A (en) | 1993-06-23 |
| KR940004489B1 true KR940004489B1 (en) | 1994-05-25 |
Family
ID=19323930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910021854A KR940004489B1 (en) | 1991-11-30 | 1991-11-30 | Rotating drum of magnetic record player |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940004489B1 (en) |
-
1991
- 1991-11-30 KR KR1019910021854A patent/KR940004489B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR930010861A (en) | 1993-06-23 |
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