KR950003666A

KR950003666A - Shaft Seal Device

Info

Publication number: KR950003666A
Application number: KR1019930012459A
Authority: KR
Inventors: 김성태
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1993-07-03
Filing date: 1993-07-03
Publication date: 1995-02-17

Abstract

본 발명은 축밀봉장치는, 축하우징(20)에 장착되는 시일하우징(30)내에 시일부재(40)(50)(60)이 순차로 적층되고, 제 1 받침대(70)는 시일부재를 지지하고, 제 2 받침대(80)는 시일하우징(30)을 지지하고, 내부압력이 압력전달통로(a)(b)를 통해 반경방향으로 시일부채(50)에 작용하여 시일부재(50)이 축(10)에 접촉하도록 하여 축밀봉을 형성하도록 한다.In the present invention, the shaft sealing device, the seal members 40, 50, 60 are sequentially stacked in the seal housing 30 mounted on the axial housing 20, the first pedestal 70 supports the seal member. In addition, the second pedestal 80 supports the seal housing 30, and the internal pressure acts on the seal fan 50 in the radial direction through the pressure transfer passages a and b so that the seal member 50 is shafted. (10) to make a shaft seal.

Description

Shaft Seal Device

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

제 1 도는 종래의 축 밀봉구조의 단면도, 제 2 도는 본 발명에 다른 축밀봉장치의 단면도, 제 3 도는 제 2 도의 축밀봉장치의 확대단면도, 제 4 도는 제 3 도의 Ｘ-Ｘ′선의 단면도.1 is a cross-sectional view of a conventional shaft sealing structure, FIG. 2 is a sectional view of a shaft sealing apparatus according to the present invention, FIG. 3 is an enlarged cross-sectional view of the shaft sealing apparatus of FIG. 2, and FIG.

Claims

A sealing member, a seal housing installed in the celebration housing, a seal member composed of a first insert ring, a seal ring, and a second insert ring sequentially stacked in the seal housing, and the celebration housing, seal housing, and the first housing. A rotating shaft penetrating through the first insert ring, the seal ring and the second insert ring, a first pedestal for supporting the seal member in contact with an outer axial end surface of the second insert ring, and a second pedestal for supporting the seal housing. Shaft sealing device comprising a.

The shaft sealing apparatus according to claim 1, wherein the first pedestal is detachably fixed to the seal housing, and the second pedestal is detachably fixed to the celebration housing.

The first pressure transfer passage formed between the inner surface of the seal housing and the inner end surface of the first insert ring in contact with each other, the inner diameter of the seal housing in contact with each other and the first insert ring. A shaft sealing device further comprises a second pressure transmission passage formed between the outer diameter surface.

4. The shaft sealing apparatus according to claim 3, wherein the first and second pressure transfer passages are provided in plural and are formed in a semicircular shape in cross section.

2. The shaft sealing apparatus according to claim 1, wherein the first pedestal has a surface in contact with the inner diameter surface of the seal housing, and further includes a zero ring installed between the contact surface and the inner diameter surface of the seal housing.

2. The first and second insert rings of claim 1, wherein the outer diameter surfaces of the first and second insert rings are in contact with the inner diameter surfaces of the seal housings, and the respective inner diameter surfaces are formed so as to form first and second gaps with the outer peripheral surfaces of the shaft, respectively. And the seal ring has an outer diameter smaller than an inner diameter of the seal housing, and the inner diameter is installed to contact the outer circumferential surface of the shaft.

4. The shaft sealing apparatus according to claim 3, wherein the sum of the cross-sectional areas of the first and second pressure transmission passages is larger than the cross-sectional area of the first gap.

2. The shaft sealing apparatus according to claim 1, wherein the first insert ring, the seal ring, and the second insert ring are in intimate contact with each other, and the second insert ring and the first pedestal are in intimate contact to prevent pressure leakage through the contact surface.

2. The shaft sealing apparatus according to claim 1, wherein the inner surface of the seal housing and the axial housing are in intimate contact to prevent pressure leakage through the contact surface.

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