KR20020045847A - Centering tool - Google Patents

Centering tool Download PDF

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Publication number
KR20020045847A
KR20020045847A KR1020000075262A KR20000075262A KR20020045847A KR 20020045847 A KR20020045847 A KR 20020045847A KR 1020000075262 A KR1020000075262 A KR 1020000075262A KR 20000075262 A KR20000075262 A KR 20000075262A KR 20020045847 A KR20020045847 A KR 20020045847A
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KR
South Korea
Prior art keywords
tapered surface
block
coupling
fixed seating
hole
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KR1020000075262A
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Korean (ko)
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KR100393544B1 (en
Inventor
박경호
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김형국
한전기공주식회사
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Application filed by 김형국, 한전기공주식회사 filed Critical 김형국
Priority to KR10-2000-0075262A priority Critical patent/KR100393544B1/en
Publication of KR20020045847A publication Critical patent/KR20020045847A/en
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Publication of KR100393544B1 publication Critical patent/KR100393544B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C15/00Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/22Structural association of coolant tubes with headers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

PURPOSE: A tool is provided to concentrically arrange two bodies through a pin or a shaft by fastening an adjust nut after coupling two bodies. CONSTITUTION: A clevis hall of an atomic reactor head is concentrically arranged with a coupling hole of a lifting league. A fixing block(31) is inserted into the clevis hall(12) of the atomic reactor head. The fixing block(31) has the first taper surface(32). A screw section(34) is formed in the fixing block(31). An adjust nut(33) is screw-coupled to the screw section(34). A pressing head(35) having the second taper surface(35a) is formed below the screw section(34). An enlarged block(39) is elastically supported by an elastic ring(38). The enlarged block(39) has an upper taper section(37a) and a lower taper section(37b) so as to simultaneously make a surface-contact with the first and second taper surfaces(32,35a).

Description

축동심 정렬공구{Centering tool}Axial Concentric Alignment Tool {Centering tool}

본 발명은 축동심 정렬공구에 관한 것으로서, 더욱 상세하게는 일체가 아닌 두 몸체의 축결합 또는 핀결합시 그 결합구멍의 축동심 정렬을 보다 용이하도록 한 축동심 정렬공구에 관한 것이다.The present invention relates to a shaft coaxial alignment tool, and more particularly, to a shaft coaxial alignment tool to facilitate the axial alignment of the coupling hole when the two body shaft coupling or pin coupling.

일반적으로 한국형 표준 원전(영광 3,4호기 및 5,6호기, 울진 3,4호기)의 핵연료 재장전 작업에서, 일단 부대설비를 제거하고, 원자로 헤드의 클래비스 홀(clevis hall)과 리프팅 리그의 결합구멍에 결합된 결합용 핀을 제거한 후 원자로 헤드를 인양하도록 되어 있고, 재장전 후 다시 상기의 역순으로 원자로 헤드를 체결하게 된다.In general, in the nuclear fuel reloading operation of Korean standard nuclear power plants (Gwanggwang Units 3, 4 and 5, 6, and Uljin Units 3 and 4), the auxiliary equipment is first removed, and the clevis hall and lifting rig of the reactor head are removed. After removing the coupling pins coupled to the coupling holes of the reactor, the reactor head is lifted, and after reloading, the reactor head is fastened again in the reverse order.

한편 핵연료 재장전 후 원자로 헤드와 리프팅 리그의 체결작업시 상기 원자로 헤드의 클래비스 홀과 리프팅 리그의 결합구멍이 맞지 않게 되는데, 이의 정렬을 위한 종래의 방법은, 단순히 체인블럭과 유압공구를 이용하여 사방에서 밀고 당기면서 각 결합구멍을 정렬을 한 후 핀을 체결하게 된다.Meanwhile, when the nuclear reactor head and the lifting rig are fastened after reloading the fuel, the clavicle hole of the nuclear reactor head and the coupling hole of the lifting rig do not fit. The conventional method for the alignment thereof is simply by using a chain block and a hydraulic tool. Push and pull from all directions to align each coupling hole and then tighten the pins.

그러나 이와 같은 종래의 방법은 각 결합구멍을 통한 직접적인 정렬이 아니라 원자로 헤드를 리프팅시킨 상태에서 이리저리 이동을 시키면서 어긋난 상태를 조금씩 교정해 나가는 수동적인 정렬방식이기 때문에 무엇보다 작업시간과 그 작업에 투입되는 인력이 많이 소요되는 문제점이 있었고, 이러한 작업중에 작업자의 안전사고나 원자로 헤드의 파손이 초래되는 문제점이 있었다.However, such a conventional method is not a direct alignment through each coupling hole, but rather a manual alignment method that corrects the misalignment by moving the reactor head while lifting the reactor head. There was a problem that requires a lot of manpower, there was a problem that the worker's safety accidents or damage to the reactor head during this operation.

따라서, 본 발명은 상기와 같은 제반문제를 해결하기 위해 창출된 것으로서,그 목적은 일체가 아닌 두 몸체의 축결합 또는 핀결합시 그 결합구멍의 축동심 정렬을 보다 용이하도록 한 축동심 정렬공구를 제공함에 있다.Accordingly, the present invention has been made to solve the above-mentioned problems, and its object is to provide an axial concentric alignment tool which makes it easier to axially align the coupling holes when axial coupling or pin coupling of two bodies is not integral. In providing.

상기 목적을 달성하기 위해 본 발명은, 원자로 헤드의 클래비스 홀과 리프팅 리그의 결합구멍의 축동심 정렬을 이루어 핀결합 또는 축결합을 함에 있어서,In order to achieve the above object, the present invention, in the pinned or axial coupling by making the axial concentric alignment of the coupling hole of the reclining hole and the clavis hole of the reactor head,

상기 원자로 헤드의 클래비스 홀 상에 끼워져 안착되고, 그 하부에 상광하협(上廣下狹)되는 테이퍼면을 갖는 고정 안착블럭;A fixed seating block fitted on the clavicle hole of the reactor head, the fixed seating block having a tapered surface at the bottom thereof;

상기 고정 안착블럭에 헐겁게 끼움결합되도록 일정한 수직길이를 갖고, 상부에 상기 고정 안착블럭을 가압할 수 있도록 조정너트가 나사결합하는 나사형성부가 형성되며, 그 하부에 상협하광(上狹下廣)된 테이퍼면을 갖는 가압헤드를 포함한 확경바아; 및It has a constant vertical length so as to loosely fit to the fixed seating block, a screw forming portion for screwing the adjustment nut is formed on the upper portion to press the fixed seating block, the upper and lower beams (上 狹 下 廣) A diameter bar including a pressurized head having a tapered surface; And

상기 고정 안착블럭의 테이퍼면과 확경바아의 테이퍼면에 동시에 면접되도록 서로 대칭되는 경사의 상부 테이퍼면과 하부 테이퍼면을 갖고, 가압헤드의 수직이동시 확경과 축경이 자유롭도록 다수개로 분할구성되며, 분할상태가 유지되도록 외측에 탄성링이 탄지된 확경블럭;을 포함하여 구성된 특징을 갖는다.The tapered surface of the fixed seating block and the tapered surface of the enlarged bar has an upper tapered surface and a lower tapered surface inclined to be symmetrical to each other at the same time, and is divided into a plurality of split so as to freely expand and shaft diameter during vertical movement of the pressure head. It has a feature configured, including; expansion block block the elastic ring is supported on the outside to maintain the state.

도 1 의 (가)(나)는 본 발명에 따른 축동심 정렬공구를 도시한 정단면도.Figure 1 (a) (b) is a sectional front view showing the axial coaxial alignment tool according to the present invention.

도 2 는 도 1 의 A - A선 단면도.FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1. FIG.

도 3 의 (가)(나)는 본 발명의 작동상태도.Figure 3 (a) (b) is an operating state of the present invention.

※ 도면의 주요부분에 대한 부호의 설명 ※※ Explanation of code about main part of drawing ※

10: 원자로 헤드,12: 클래비스 홀,10: reactor head, 12 clavis hole,

20: 리프팅 리그,22: 결합구멍,20: lifting rig, 22: coupling hole,

30: 축동심 정렬공구,31: 고정 안착블럭,30: axial concentric alignment tool, 31: fixed seating block,

32: 테이퍼면,33: 조정너트,32: tapered surface, 33: adjusting nut,

34: 나사형성부,35: 가압헤드,34: thread forming portion, 35: pressure head,

35a: 테이퍼면,36: 확경바아,35a: tapered surface, 36: diameter bar,

37a, 37b: 테이퍼면,38: 탄성링,37a, 37b: tapered surface, 38: elastic ring,

39: 확경블럭,39: diameter block,

이하, 본 발명의 실시예를 첨부한 도면에 의거하여 보다 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on attached drawing.

도 1 의 (가)(나)는 본 발명에 따른 축동심 정렬공구를 도시한 정단면도이고, 도 2 는 도 1 의 A - A선 단면도이며, 도 3 의 (가)(나)는 본 발명의 작동상태도이다.Figure 1 (a) (b) is a front sectional view showing the axial coaxial alignment tool according to the present invention, Figure 2 is a cross-sectional view taken along line A-A of Figure 1, Figure 3 (a) (b) is the present invention The operation state of.

본 발명의 구성은, 원자로 헤드(10)의 클래비스 홀(12)과 리프팅 리그(20)의 결합구멍(22)의 축동심 정렬을 이루어 핀결합 또는 축결합을 함에 있어서,In the configuration of the present invention, in the axial coaxial alignment of the coupling hole 22 of the clavicle hole 12 of the reactor head 10 and the lifting rig 20 to perform pin coupling or axial coupling,

상기 원자로 헤드(10)의 클래비스 홀(12) 상에 끼워져 안착되고, 그 하부에 상광하협(上廣下狹)되는 테이퍼면(32)을 갖는 고정 안착블럭(31)을 구비한다.A fixed seating block 31 having a tapered surface 32 fitted and seated on the clavicle hole 12 of the reactor head 10 and having an upper and lower side is provided below.

또한 상기 고정 안착블럭(31)에 헐겁게 끼움결합되도록 일정한 수직길이를 갖고, 상부에 상기 고정 안착블럭(31)을 가압할 수 있도록 조정너트(33)가 나사결합하는 나사형성부(34)가 형성되며, 그 하부에 상협하광(上狹下廣)된 테이퍼면(35a)을 갖는 가압헤드(35)를 포함한 확경바아(36)를 구성한다.In addition, it has a predetermined vertical length so as to loosely fit to the fixed seating block 31, the screw forming portion 34 is screwed to the adjustment nut 33 to press the fixed seating block 31 on the top is formed. And the enlarged diameter bar 36 including the pressurizing head 35 having the tapered surface 35a having the upper and lower beams beneath it.

또한 상기 고정 안착블럭(31)의 테이퍼면(32)과 확경바아(36)의 테이퍼면(35a)에 동시에 면접되도록 서로 대칭되는 경사의 상부 테이퍼면(37a)과 하부 테이퍼면(37b)을 갖고, 가압헤드(35)의 수직이동시 확경과 축경이 자유롭도록 다수개로 분할구성되며, 분할상태가 유지되도록 외측에 탄성링(38)이 탄지된 확경블럭(39)을 구성하였다.In addition, the tapered surface 32 of the fixed seating block 31 and the tapered surface 35a of the enlarged bar 36 are simultaneously inclined to have an upper tapered surface 37a and a lower tapered surface 37b which are symmetrical to each other. , When the pressing head 35 is vertically moved, a plurality of split diameters and free diameters are configured to be free, and an enlarged diameter block 39 in which the elastic ring 38 is supported on the outside is maintained to maintain the divided state.

이하에서는 상기와 같이 구성된 본 발명의 작용을 설명하기로 한다.Hereinafter will be described the operation of the present invention configured as described above.

원자로 헤드(10)를 리프팅 리그(20)로부터 분해한 상태에서 핵연료를 재장전한 후 다시 상기 원자로 헤드(10)를 리프팅 리그(20)에 결합시키는 단계를 거치게 된다.After reloading the nuclear fuel while the reactor head 10 is disassembled from the lifting rig 20, the reactor head 10 is coupled to the lifting rig 20 again.

이 단계를 구체적으로 기술하면, 원자로 헤드(10)를 인양시켜 리프팅 리그(20)의 상부에 안착시켜 결합하는 과정에서 상기 원자로 헤드(10)의 클래비스 홀(12)과 리프팅 리그(20)의 결합구멍(22)의 축동심이 일치되지 않고 틀어지게 되는 상황이 발생하게 된다.Specifically, the step of lifting the reactor head 10 and seating on the upper portion of the lifting rig 20 to be coupled to the clavis hole 12 and the lifting rig 20 of the reactor head 10 A situation arises in which the axial concentricity of the engaging holes 22 is mismatched and distorted.

이 때 본 발명의 축동심 정렬장치(30)를 도 3 (가)에서와 같이 클래비스 홀(12)과 결합구멍(22)에 모두 끼워지도록 삽입하면서 고정 안착블럭(31)을 상기 원자로 헤드(10)상에 안착시킨다. 이 때의 상태는 상기 탄성링(38)에 의해 지지된 확경블럭(39)의 외경이 고정 안착블럭(31)의 외경보다 작은 상태이기 때문에 클래비스 홀(12)과 결합구멍(22)이 서로 틀어지더라도 본 발명의 축동심 정렬장치(30)는 간섭됨이 없이 삽입되어진다.At this time, while inserting the axial coaxial alignment device 30 of the present invention to fit both the clavicle hole 12 and the coupling hole 22 as shown in Fig. 3 (a), the fixed seating block 31 is inserted into the reactor head ( 10) Settle on the phase. At this time, since the outer diameter of the enlarged diameter block 39 supported by the elastic ring 38 is smaller than the outer diameter of the fixed seating block 31, the clavis hole 12 and the engaging hole 22 are mutually different. Even if misaligned, the axial alignment device 30 of the present invention is inserted without interference.

이 후 확경바아(36)의 나사형성부(34)에 결합된 조정너트(33)를 돌리게 되면 상기 확경바아(36) 전체가 상향으로 이동됨과 동시에 그 바아 하부의 가압헤드(35)에 의해 확경블럭(39)을 외측방향으로 밀게 되는데, 즉 확경바아(36)의 상향이동에 의해 상기 가압헤드(35)의 테이퍼면(35a)과 고정 안착블럭(31)의 테이퍼면(32)에 상부 테이퍼면(37a)과 하부 테이퍼면(37b)이 각각 습동되면서 상기 확경블럭(39)이 점차적으로 확경된다.After turning the adjusting nut 33 coupled to the threaded portion 34 of the enlarged bar 36, the entire diameter of the enlarged bar 36 is moved upward and at the same time enlarged by the pressure head 35 in the lower part of the bar. The block 39 is pushed outward, i.e., the taper surface 35a of the pressure head 35 and the taper surface 32 of the fixed seating block 31 are moved upward by the enlarged diameter bar 36. As the surface 37a and the lower tapered surface 37b slide, respectively, the enlarged diameter block 39 is gradually enlarged.

이와 같이 가압헤드(35)의 상향이동 작동에 의해 확경블럭(39)의 외경이 고정 안착블럭(31)의 외경과 일치되는 시점에 다다르면 원자로 헤드(10)의 클래비스 홀(12)이 리프팅 리그(20)의 결합구멍(22) 축심에 맞추어지게 되는 것이다.As such, when the outer diameter of the enlarged diameter block 39 reaches the outer diameter of the fixed seating block 31 by the upward movement of the pressurizing head 35, the clavicle hole 12 of the reactor head 10 is lifted. The coupling hole 22 of the shaft 20 is adapted to the shaft center.

이상에서 설명한 본 발명은 전술한 실시예 및 도면에 의해 한정되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.The present invention described above is not limited to the above-described embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

이상에서와 같은 본 발명을 적용하게 되면, 조정너트를 돌리는 작동만으로 결합을 위한 두 개의 부재, 즉 원자로 헤드와 리프팅 리그의 각 결합구멍의 축심이 맞추어지기 때문에 복잡한 유압공구나 부대설비를 사용하지 않고 체결 분리가 수월하여 작업시간이나 작업인력이 대폭 절감되는 효과가 있으며, 또한 그로 인한 작업상의 안전사고나 원자로 헤드의 파손 등 발생될 수 있는 문제점을 해소되어 작업능률이 향상되는 효과도 기대할 수 있다.According to the present invention as described above, the two shafts for the coupling, that is, the center of each coupling hole of the reactor head and the lifting rig are aligned by only turning the adjusting nut, without using complicated hydraulic tools or auxiliary equipment. It is easy to separate the fastening, which greatly reduces the working time and the work force, and can also be expected to improve the work efficiency by eliminating problems that may occur due to work safety accidents or damage to the reactor head.

Claims (1)

원자로 헤드(10)의 트래비스 홀(12)과 리프팅 리그(20)의 결합구멍(22)의 축동심 정렬을 이루어 핀결합 또는 축결합을 함에 있어서,In the axial coaxial alignment of the traverse hole 12 of the reactor head 10 and the coupling hole 22 of the lifting rig 20 to perform pin coupling or axial coupling, 상기 원자로 헤드(10)의 트래비스 홀(12) 상에 끼워져 안착되고, 그 하부에 상광하협(上廣下狹)되는 테이퍼면(32)을 갖는 고정 안착블럭(31);A fixed seating block (31) having a tapered surface (32) fitted on the travis hole (12) of the reactor head (10) and seated thereon; 상기 고정 안착블럭(31)에 헐겁게 끼움결합되도록 일정한 수직길이를 갖고, 상부에 상기 고정 안착블럭(31)을 가압할 수 있도록 조정너트(33)가 나사결합하는 나사형성부(34)가 형성되며, 그 하부에 상협하광(上狹下廣)된 테이퍼면(35a)을 갖는 가압헤드(35)를 포함한 확경바아(36); 및 상기 고정 안착블럭(31)의 테이퍼면(32)과 확경바아(36)의 테이퍼면(35a)에 동시에 면접되도록 서로 대칭되는 경사의 상부 테이퍼면(37a)과 하부 테이퍼면(37b)을 갖고, 가압헤드(35)의 수직이동시 확경과 축경이 자유롭도록 다수개로 분할구성되며, 분할상태가 유지되도록 외측에 탄성링(38)이 탄지된 확경블럭(39);을 포함하여 구성됨을 특징으로 하는 축동심 정렬공구.It has a constant vertical length so as to loosely fit to the fixed seating block 31, a screw forming portion 34 is screwed to the adjustment nut 33 to press the fixed seating block 31 on the top is formed. And a diameter expansion bar 36 including a pressurizing head 35 having a tapered surface 35a having an upper and lower light beam below. And a tapered upper taper surface 37a and a lower tapered surface 37b which are symmetrical with each other to be simultaneously interviewed with the tapered surface 32 of the fixed seating block 31 and the tapered surface 35a of the enlarged diameter bar 36. It is configured to be divided into a plurality of free diameters and shaft diameters freely during vertical movement of the pressure head 35, the expansion block 39, the elastic ring 38 is supported on the outside so that the divided state is maintained; Concentric Alignment Tool.
KR10-2000-0075262A 2000-12-11 2000-12-11 Centering tool KR100393544B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101295323B1 (en) * 2011-07-05 2013-08-12 한국과학기술연구원 Arrange device of connecting holes
KR20150001815U (en) * 2013-11-04 2015-05-13 대우조선해양 주식회사 Cross-bolt Adjustment Device of Wind Turbine
CN105643517A (en) * 2016-03-30 2016-06-08 苏州博众精工科技有限公司 Dual-inclined-block clamping device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104354183B (en) * 2014-11-06 2016-05-18 建新赵氏集团有限公司 A kind of clamping device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101295323B1 (en) * 2011-07-05 2013-08-12 한국과학기술연구원 Arrange device of connecting holes
KR20150001815U (en) * 2013-11-04 2015-05-13 대우조선해양 주식회사 Cross-bolt Adjustment Device of Wind Turbine
CN105643517A (en) * 2016-03-30 2016-06-08 苏州博众精工科技有限公司 Dual-inclined-block clamping device

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