KR101010618B1 - Ceramic hearth roll fixing device - Google Patents

Ceramic hearth roll fixing device Download PDF

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Publication number
KR101010618B1
KR101010618B1 KR1020030055216A KR20030055216A KR101010618B1 KR 101010618 B1 KR101010618 B1 KR 101010618B1 KR 1020030055216 A KR1020030055216 A KR 1020030055216A KR 20030055216 A KR20030055216 A KR 20030055216A KR 101010618 B1 KR101010618 B1 KR 101010618B1
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South Korea
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hearth roll
roll sleeve
ceramic
split shaft
fixing device
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KR1020030055216A
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Korean (ko)
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KR20050017455A (en
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이상수
박순복
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주식회사 포스코
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/562—Details
    • C21D9/563—Rolls; Drums; Roll arrangements

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

본 발명은 세라믹허스롤을 축고정하는 메인샤프트의 밴딩에 의해 사이드플랜지가 이탈되면서 세라믹슬리브가 파손되고 핀홀이 마모되는 것을 방지할 수 있도록 개선된 세라믹허스롤 고정장치에 관한 것으로, 양단이 개방되고 그 외주면 일부에 외부공기와 연통되는 연통공이 형성된 허스롤슬리브와; 상기 허스롤슬리브의 양단에 끼워지며 베어링에 의해 회전가능하게 지지되고 선단에는 걸림턱이 형성되며 그와 거리를 두고 그 외주면상에는 나사산이 형성된 분할축과; 상기 분할축을 통과하여 허스롤슬리브 양단에 고정되며 상기 걸림턱이 걸림되는 걸림면을 갖는 고정구와; 상기 분할축을 따라 이동가능하게 끼워지고 상기 분할축의 나사산에 체결되는 고정너트에 의해 상기 고정구에 밀착고정되는 내화성형부재와; 상기 허스롤슬리브의 중앙부 강도를 보강하도록 그 내부에 내장되는 삽입내화재를 포함하여 구성된다.The present invention relates to a ceramic hull roll fixing device which is improved to prevent the ceramic sleeves from being broken and the pinholes wear out by side flanges being deviated by the bending of the main shaft which fixes the ceramic hull rolls. A hearth roll sleeve having a communication hole communicating with external air on a portion of its outer circumferential surface; A split shaft formed at both ends of the hearth roll sleeve and rotatably supported by a bearing, a locking jaw formed at the front end thereof, and a thread formed on the outer circumferential surface at a distance thereof; A fastener fixed to both ends of the hearth roll sleeve through the split shaft and having a locking surface to which the locking jaw is engaged; A fire-resistant molding member fitted to the fastener by a fixing nut movably fitted along the split shaft and fastened to a screw thread of the split shaft; It comprises a refractory material embedded therein to reinforce the center portion strength of the hearth roll sleeve.

본 발명에 따르면, 허스롤슬리브를 지지하는 축이 관통하여 배치되어 있지 않고 분할되어 있으므로 열변형이 억제될 뿐만 아니라 그 양단을 유동성 있게 지지하면서 회전되도록 설계되어 있어 열에 의한 변형이 완전 차단되므로 세라믹슬리브의 이탈현상이 제거된다.According to the present invention, since the shaft supporting the hearth roll sleeve is not disposed through and is divided, the thermal deformation is not only suppressed, but also designed to rotate while supporting the both ends fluidly so that the deformation due to heat is completely blocked. Elimination of is eliminated.

Description

세라믹허스롤 고정장치{CERAMIC HEARTH ROLL FIXING DEVICE}CERAMIC HEARTH ROLL FIXING DEVICE

도 1은 종래 세라믹허스롤 조립체를 보인 예시적인 단면도,1 is an exemplary cross-sectional view showing a conventional ceramic heart roll assembly,

도 2는 본 발명에 따른 세라믹허스롤의 단면도,2 is a cross-sectional view of the ceramic hearth roll according to the present invention;

도 3은 본 발명에 따른 세라믹허스롤의 일부 분해 사시도.3 is a partially exploded perspective view of a ceramic hearth roll according to the present invention.

♧ 도면의 주요 부분에 대한 부호의 설명 ♧♧ description of the symbols for the main parts of the drawing ♧

2a,b....분할축 3a,b....고정너트Split shaft 3a, b ..

5....허스롤슬리브 6a,b....내화성형부재5 .... hurs roll sleeve 6a, b ....

7....삽입내화재 8....공기순환홀7 .... Insert refractory fire 8 .... Air circulation hole

9....단열재 10....연통공9 .... insulation material 10 .... communicator

11a,b....베어링 13a,b....걸림턱11a, b .... Bearing 13a, b ...

14a,b....걸림면 15....고정구14a, b ...

본 발명은 규소강판을 연속적으로 탈탄 및 소둔하기 위해 고온의 소둔로 내에 설치되어 있는 세라믹허스롤을 통해 연속통판시킬 때에 세라믹허스롤을 축고정하는 메인샤프트의 밴딩에 의해 사이드플랜지가 이탈되면서 세라믹슬리브가 파손되 고 핀홀이 마모되는 것을 방지할 수 있도록 개선된 관통축이 없는 세라믹허스롤 고정장치에 관한 것이다.The present invention is a ceramic sleeve while the side flange is separated by the bending of the main shaft for axially fixing the ceramic hulls roll when continuously passing through the ceramic hearth roll installed in a high temperature annealing furnace to continuously decarburize and anneal the silicon steel sheet The present invention relates to a ceramic hull roll fixing device having no through shaft, which is improved to prevent breakage and wear of pinholes.

종래에는 도 1의 도시와 같이, 고온의 소둔로내에 규소강판(100)을 지지하면서 연속적으로 진행시켜 주는 세라믹허스롤(110)을 설치한 후 외부에 구비된 구동모터(120)를 통해 이를 구동시켰다.In the related art, as shown in FIG. 1, the ceramic hearth roll 110 is continuously installed while supporting the silicon steel sheet 100 in a high temperature annealing furnace, and then driven through a driving motor 120 provided outside. I was.

따라서, 고온속에서 작업되는 관계로 세라믹허스롤(110)의 메인샤프트(130)가 열팽창에 의해 변형되고, 이로 인해 회전시 세라믹허스롤(110)의 원주속도, 편차, 유격 등을 초래하여 규소강판(100)의 표면에 롤마크 불량을 유발시키며, 또한 세라믹슬리브(140)를 고정하는 사이드플랜지(150)와 이를 메인샤프트(130)에 축고정하는 세트볼트(160)가 이탈되거나 파손되면서 세라믹슬리브(140)의 에지부 파손을 초래하여 규소강판(100)에 스크래치를 생성시켜 제품불량을 초래하였다.Therefore, the main shaft 130 of the ceramic hearth roll 110 is deformed by thermal expansion in relation to the work at high temperature, thereby causing the circumferential speed, deviation, and clearance of the ceramic hearth roll 110 during rotation. Induces a roll mark defect on the surface of the steel sheet 100, and also the side flange 150 for fixing the ceramic sleeve 140 and the set bolt 160 axially fixed to the main shaft 130 is separated or damaged It caused the edge of the sleeve 140 breakage to produce a scratch on the silicon steel sheet 100 resulting in product defects.

본 발명은 상술한 바와 같은 종래 기술이 갖는 제반 문제점을 감안하여 이를 해결하고자 창출한 것으로, 메인샤프트를 세라믹허스롤에 관통배설하지 않고 그 양단측에서만 이를 회전가능하게 지지할 수 있도록 배설함으로써 고열에 의한 밴딩현상을 억제하여 규소강판의 표면에 유발되는 결함을 극소화시킬 수 있도록 함과 동시에 분해조립이 용이한 관통축이 없는 세라믹허스롤 고정장치를 제공함에 그 목적이 있다.The present invention has been made in view of the above-mentioned problems in the prior art, and solves this problem. The main shaft is not penetrated to the ceramic hull roll and is disposed so as to be rotatably supported only at both ends thereof so that In order to minimize the defects caused on the surface of the silicon steel sheet by suppressing the banding phenomenon by the same time and to provide a ceramic heart roll fixing device without a through shaft that is easy to disassemble and assemble.

본 발명은 상기한 기술적 과제를 달성하기 위하여, 양단이 개방되고 그 외주 면 일부에 외부공기와 연통되는 연통공이 형성된 허스롤슬리브와; 상기 허스롤슬리브의 양단에 끼워지며 베어링에 의해 회전가능하게 지지되고 선단에는 걸림턱이 형성되며 그와 거리를 두고 그 외주면상에는 나사산이 형성된 분할축과; 상기 분할축을 통과하여 허스롤슬리브 양단에 고정되며 상기 걸림턱이 걸림되는 걸림면을 갖는 고정구와; 상기 분할축을 따라 이동가능하게 끼워지고 상기 분할축의 나사산에 체결되는 고정너트에 의해 상기 고정구에 밀착고정되는 내화성형부재와; 상기 허스롤슬리브의 중앙부 강도를 보강하도록 그 내부에 내장되는 삽입내화재를 포함하여 구성되는 세라믹허스롤 고정장치를 제공함에 그 특징이 있다.In order to achieve the above technical problem, the present invention provides a hearth roll sleeve having both ends open and communicating holes communicating with external air on a portion of its outer circumferential surface; A split shaft formed at both ends of the hearth roll sleeve and rotatably supported by a bearing, a locking jaw formed at the front end thereof, and a thread formed on the outer circumferential surface at a distance thereof; A fastener fixed to both ends of the hearth roll sleeve through the split shaft and having a locking surface to which the locking jaw is engaged; A fire-resistant molding member fitted to the fastener by a fixing nut movably fitted along the split shaft and fastened to a screw thread of the split shaft; It is characterized by providing a ceramic heart roll fixing device including an insert refractory material embedded therein to reinforce the center portion strength of the hearth roll sleeve.

이하에서는, 첨부도면을 참조하여 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 세라믹허스롤의 단면도이고, 도 3은 본 발명에 따른 세라믹허스롤의 일부 분해 사시도이다.2 is a cross-sectional view of the ceramic heart roll according to the present invention, Figure 3 is a partially exploded perspective view of the ceramic heart roll according to the present invention.

도 2 내지 도 3에서와 같이, 본 발명은 크게 분할축(2a,b)과 허스롤슬리브(5)를 고정하기 위한 수단으로 대분된다.As shown in Figs. 2 to 3, the present invention is largely divided into means for fixing the divided shafts 2a and b and the hearth roll sleeve 5.

분할축(2,2a)은 세라믹허스롤의 회전중심을 이루는 회전축으로서 상기 허스롤슬리브(5)를 관통하지않은 상태로 배설되며, 베어링(11a,b)에 의해 회전가능하게 지지된다.The split shafts 2 and 2a are rotating shafts forming the center of rotation of the ceramic heart rolls and are not penetrated through the hearth roll sleeve 5 and are rotatably supported by the bearings 11a and b.

허스롤슬리브(5)의 양측에 고정되는 분할축(2a,b) 선단에는 걸림턱(13a,b)이 형성되고, 걸림턱(13a,b)으로부터 후단을 향해 일정거리 이격된 분할축(2a,b) 상에는 나사산(4a,b)이 가공된다.The locking jaws 13a and b are formed at the ends of the split shafts 2a and b fixed to both sides of the hearth roll sleeve 5, and the split shafts 2a are spaced apart from the locking jaws 13a and b by a predetermined distance. On (b), the threads 4a and b are machined.

또한, 상기 허스롤슬리브(5)의 양단 내주면에는 도시와 같은 걸림면(14a,b) 을 갖는 고정구(15)가 상기 허스롤슬리브(5)와 일체로 고정됨으로써 허스롤슬리브(5) 내부에 끼워진 분할축(2a,b)의 걸림턱(13a,b)이 외부로 이탈되지 못하도록 하여 준다.In addition, the fasteners 15 having locking surfaces 14a and b as shown in the drawing are fixed to the inner circumferential surfaces of the hearth roll sleeve 5 integrally with the hearth roll sleeve 5 so as to be provided inside the hearth roll sleeve 5. The locking projections 13a and b of the split shafts 2a and b fitted are prevented from being separated outward.

여기에서, 상기 고정구(15)는 경사면이 없는 형태로 마련되는 것이 통상이나 열기의 원활한 분배를 도모하기 위하여 절두원뿔대형으로 형성함이 바람직하며, 그에 대응 견착되는 후술할 내화성형부재(6a,b)도 또한 외주면이 대응경사지게 형성함이 바람직하다.Here, the fastener 15 is usually provided in a form without an inclined surface is preferably formed in a truncated truncated truncated cone in order to facilitate the smooth distribution of heat, fire-resistant molded members (6a, b) to be described later correspondingly Also, it is preferable that the outer circumferential surface is formed to be inclined correspondingly.

그리고, 상기 허스롤슬리브(5)의 내부에는 중공형태의 삽입내화부재(7)가 끼워지며, 상기 삽입내화부재(7)의 양단면에는 내외부가 연통되는 공기순환홀(8)이 천공되어 공기순환을 통한 클랙현상을 예방할 수 있도록 형성된다.In addition, a hollow insert refractory member 7 is fitted inside the hearth roll sleeve 5, and air circulation holes 8 are formed in both ends of the insert refractory member 7 to communicate with each other. It is formed to prevent cracking through circulation.

아울러, 상기 삽입내화부재(7)의 양측 외부에는 즉, 허스롤슬리브(5) 내부의 삽입내화부재(7)가 차지하는 공간 이외의 부위에는 단열재(9a,b)가 충만되어 열확산을 억제할 수 있도록 구성되며, 특히 상기 허스롤슬리브(5)의 양단부에 인접한 그 외주면상에는 내외부 공기의 교류를 위한 연통공(10a,b)이 천공된다.In addition, both sides of the insertion refractory member 7 are filled outside the space occupied by the insertion refractory member 7 inside the hearth roll sleeve 5, the heat insulating material (9a, b) is filled to suppress heat diffusion. In particular, on the outer peripheral surface adjacent to both ends of the hearth roll sleeve 5, communication holes (10a, b) for the exchange of internal and external air is drilled.

상기 연통공(10a,b)은 서로 대향되는 방향으로 천공됨이 특히 바람직하다.It is particularly preferable that the communication holes 10a and b are perforated in directions facing each other.

한편, 상기 분할축(2a,b)의 나사산(4a,b)과 걸림턱(13a,b) 사이에는 내화성형부재(6a,b)가 끼워지는데 상기 내화성형부재(6a,b)는 분할축(2a,b)을 따라 슬라이딩가능하게 끼워지며 그 후측에는 상기 분할축(2a,b)상의 나사산(4a,b)에 체결될 수 있는 고정너트(3a,b)가 구비된다.On the other hand, the refractory molding members 6a and b are fitted between the threads 4a and b of the split shafts 2a and b and the locking projections 13a and b. The refractory molding members 6a and b are divided shafts. Fixing nuts 3a and b which are slidably fitted along the sides 2a and b and which can be fastened to the threads 4a and b on the split shafts 2a and b are provided.

이와 같이 구성된 본 발명의 작용을 설명하면 다음과 같다. Hereinafter, the operation of the present invention will be described.                     

먼저, 허스롤슬리브(5)내 삽입내화부재(7)를 중앙부에 위치시킨 후 양측단에 단열재(9a,b)를 충만시키고, 도 3에서와 같이 내화성형부재(6a,b) 전면에 걸림턱(13a,b)과 걸림면(14a,b)이 서로 걸려 고정될 수 있도록 고정구(15)를 끼워 배치한 후 허스롤슬리브(5)의 양측 가장자리를 밀폐시킨다.First, the insertion refractory member 7 in the hearth roll sleeve 5 is positioned at the center portion, and the heat insulating material 9a, b is filled at both ends, and the front surface of the refractory molding members 6a, b is caught as shown in FIG. The jaws 13a and b and the engaging surfaces 14a and b are fitted to each other so that the fasteners 15 can be caught and fixed to each other, and then the both edges of the hearth roll sleeve 5 are sealed.

이때, 상기 걸림면(14a,b)을 갖는 고정구(15)는 허스롤슬리브(5)와 동일한 조성물(재질)로 형성하거나 혹은 그러한 재질을 접착재로 하여 접착고정시킨 후 고정너트(3a,b)를 나사산(4a,b)에 결속시켜 조이게 되면 내화성형부재(6)가 슬라이딩되면서 고정구(15)와 견실한 고정상태를 이루게 된다.At this time, the fastener 15 having the locking surface 14a, b is formed of the same composition (material) as the hearth roll sleeve 5, or fixed to the fixing nut (3a, b) by using such a material as an adhesive material When the fastening by fastening to the thread (4a, b) is a refractory forming member (6) is sliding to achieve a secure fixed state with the fixture (15).

이러한 상태에서, 상기 허스롤슬리브(5)에 열이 가해지면 내외부와의 온도편차를 줄이기 위한 공기순환홀(8)과 연통공(10)을 통해 밀폐된 허스롤슬리브(5) 내부의 공기는 순환되어 온도편차를 최소화하게 되므로 온도편차로 인한 허스롤슬리브(5)의 파손을 예방 하게 된다.In this state, when heat is applied to the hearth roll sleeve 5, the air inside the hearth roll sleeve 5 sealed through the air circulation hole 8 and the communication hole 10 to reduce the temperature deviation between the inside and the outside is Since the circulation is minimized to minimize the temperature deviation, the failure of the hearth roll sleeve 5 due to the temperature deviation is prevented.

아울러, 상기 삽입내화부재(7)와 충만된 단열재(9a,b)에 의해 허스롤슬리브(5)의 양축단에서 발생되는 과다한 수축과 팽창력을 흡수시켜 고정에 따른 균열됨도 예방하게 된다.In addition, the insertion refractory member 7 and the heat insulating material (9a, b) filled with the absorbed excessive shrinkage and expansion force generated at both ends of the hearth roll sleeve (5) to prevent cracking due to fixing.

뿐만 아니라, 상기 내화성형부재(6a,b)는 경사면을 가지고 있으므로 고열에 의한 승온시 발생되는 허스롤슬리브(5)의 팽창력을 흡수시켜 균열로 인한 조기 수명단축도 예방하게 된다.In addition, since the refractory molding members 6a and b have inclined surfaces, they absorb the expansion force of the hearth roll sleeve 5 generated when the temperature rises due to high heat, thereby preventing premature life shortening due to cracking.

이상에서 살펴본 바와 같이, 본 발명은 허스롤슬리브를 지지하는 축이 관통 하여 배치되어 있지 않고 분할되어 있으므로 열변형이 억제될 뿐만 아니라 그 양단을 유동성 있게 지지하면서 회전되도록 설계되어 있어 열에 의한 변형이 완전 차단되므로 세라믹슬리브의 이탈현상이 제거되고, 안정적인 규소강판 이송작업을 수행할 수 있음은 물론 단열재 충만에 따른 내외부 수축과 팽창력을 흡수시켜 고가의 허스롤슬리브의 수명을 연장시킬 수 있다.As described above, in the present invention, since the shaft supporting the hearth roll sleeve is not disposed through and is divided, the heat deformation is not only suppressed but also designed to be rotated while supporting the both ends fluidly so that deformation due to heat is completely completed. As it is blocked, the separation phenomenon of the ceramic sleeve can be eliminated, and stable silicon steel sheet can be transported, and the inner and outer contraction and expansion force due to the filling of the insulation can be absorbed to extend the life of the expensive hearth roll sleeve.

Claims (4)

양단이 개방되고 그 외주면 일부에 외부공기와 연통되는 연통공이 형성된 허스롤슬리브와;A hearth roll sleeve having both ends open and communicating holes communicating with external air on a portion of its outer circumferential surface; 상기 허스롤슬리브의 양단에 끼워지며 베어링에 의해 회전가능하게 지지되고 선단에는 걸림턱이 형성되며 그와 거리를 두고 그 외주면상에는 나사산이 형성된 분할축과;A split shaft formed at both ends of the hearth roll sleeve and rotatably supported by a bearing, a locking jaw formed at the front end thereof, and a thread formed on the outer circumferential surface at a distance thereof; 상기 분할축을 통과하여 허스롤슬리브 양단에 고정되며 상기 걸림턱이 걸림되는 걸림면을 갖는 고정구와;A fastener fixed to both ends of the hearth roll sleeve through the split shaft and having a locking surface to which the locking jaw is engaged; 상기 분할축을 따라 이동가능하게 끼워지고 상기 분할축의 나사산에 체결되는 고정너트에 의해 상기 고정구에 밀착고정되는 내화성형부재와;A fire-resistant molding member fitted to the fastener by a fixing nut movably fitted along the split shaft and fastened to a screw thread of the split shaft; 상기 허스롤슬리브의 중앙부 강도를 보강하도록 그 내부에 내장되는 삽입내화재를 포함하여 구성되는 것을 특징으로 하는 세라믹허스롤 고정장치.Ceramic heart roll fixing device, characterized in that it comprises a refractory material embedded therein to reinforce the center portion strength of the hearth roll sleeve. 청구항 1에 있어서,The method according to claim 1, 상기 허스롤슬리브 내부의 삽입내화재를 제외한 공간상에는 단열재가 충만된 것을 특징으로 하는 세라믹허스롤 고정장치.Ceramic heart roll fixing device, characterized in that the insulating material is filled in the space except the inserted refractory material in the hearth roll sleeve. 청구항 1에 있어서,The method according to claim 1, 상기 고정구는 절두원뿔대형상으로 형성되고, 그에 견착되는 내화성형부재의 접촉면도 대응되는 형상으로 가공된 것을 특징으로 하는 세라믹허스롤 고정장치.The fastener is formed in the shape of a truncated truncated cone, ceramic hull roll fixing device, characterized in that the contact surface of the refractory forming member adhered thereto is also processed into a corresponding shape. 청구항 1에 있어서,The method according to claim 1, 상기 삽입내화재의 양측단면에는 외부와 연통되는 공기순환홀이 다수 천공된 것을 특징으로 하는 세라믹허스롤 고정장치.Both sides of the insertion refractory material is a ceramic heart roll fixing device characterized in that a plurality of perforated air circulation holes communicated with the outside.
KR1020030055216A 2003-08-09 2003-08-09 Ceramic hearth roll fixing device KR101010618B1 (en)

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KR20160023308A (en) * 2014-08-22 2016-03-03 주식회사 포스코 Hearth roll for heat treating furnace

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KR101708979B1 (en) * 2014-12-22 2017-02-22 주식회사 포스코 Hearth roll structure for preventing thermal insulator leaking
CN108148962B (en) * 2018-01-12 2023-06-20 莱芜钢铁集团有限公司 Tool for replacing hearth roll and use method thereof
KR102271158B1 (en) * 2020-12-22 2021-06-29 조아라 Ceramic roller

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Publication number Priority date Publication date Assignee Title
KR20160023308A (en) * 2014-08-22 2016-03-03 주식회사 포스코 Hearth roll for heat treating furnace
KR101641047B1 (en) 2014-08-22 2016-07-20 주식회사 포스코 Hearth roll for heat treating furnace

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