KR100761050B1 - Cylindrical rotary cutter - Google Patents

Cylindrical rotary cutter Download PDF

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Publication number
KR100761050B1
KR100761050B1 KR1020070030150A KR20070030150A KR100761050B1 KR 100761050 B1 KR100761050 B1 KR 100761050B1 KR 1020070030150 A KR1020070030150 A KR 1020070030150A KR 20070030150 A KR20070030150 A KR 20070030150A KR 100761050 B1 KR100761050 B1 KR 100761050B1
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KR
South Korea
Prior art keywords
cutting knife
mantle
mantle member
cutting
torsion spring
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Application number
KR1020070030150A
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Korean (ko)
Inventor
경 곤 김
임영철
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대지종건(주)
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Priority to KR1020070030150A priority Critical patent/KR100761050B1/en
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Publication of KR100761050B1 publication Critical patent/KR100761050B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"
    • B08B1/32—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
    • B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
    • B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes

Abstract

A cylindrical rotary cutter is provided to prevent abrasion of edges of cutting knives by air-cooling the edges of the knives fast and spacing the cutting knives from each other, and to allow the knives to be pulled back when the edges of the knives passes a projection inside the pipe by supporting the cutting knives elastically by a leaf spring. A cylindrical rotary cutter comprises mantle members(10,10a,10b,10c,10d) and a spacer(50). The mantle members provided with a plurality of cutting knives on the outer periphery, are fitted into a rotary shaft(20). The spacer is fitted into the rotary shaft between one mantle member and an adjacent mantle member, so as to maintain a space(s) for the cutting knife between each mantle. A plurality of slots are provided in regular intervals on the outer periphery of the mantle member, wherein the slots are inserted by a support of the cutting knife together with a leaf spring to allow the leaf spring to hold elastically an outer wing unit of the support. Edges of the cutting knives are pulled back in a counter direction of the rotating mantle member when the edges are overloaded and the leaf spring is stretched and cover plates on the opposite sides of the mantle member is fixed by a bolt. Consequently, the cutting knives are prevented from being separated from the mantle member by the cover plates.

Description

원통형 회전커터{CYLINDRICAL ROTARY CUTTER}Cylindrical Rotary Cutter {CYLINDRICAL ROTARY CUTTER}

도 1은 본 발명에 따른 원통형 회전커터를 도시한 조립도1 is an assembly view showing a cylindrical rotary cutter according to the present invention

도 2는 본 발명에 따른 원통형 회전커터를 도시한 측면도Figure 2 is a side view showing a cylindrical rotary cutter according to the present invention

도 3은 도 1의 맨틀부재와 커팅날의 조립을 도시한 분해 사시도Figure 3 is an exploded perspective view showing the assembly of the mantle member and the cutting blade of Figure 1

도 4는 맨틀부재에 커팅 나이프가 장착된 상태를 도시한 도 1의 A-A선에 따른 단면도4 is a cross-sectional view taken along line A-A of FIG. 1 showing a state in which a cutting knife is mounted on a mantle member.

도 5는 도 4에 도시된 맨틀부재와 커팅 나이프의 결합관계를 설명하기 위해 맨틀부재와 커팅 나이프의 결합을 분해하여 확대 도시한 상세도FIG. 5 is an enlarged detailed view illustrating a disassembled combination of the mantle member and the cutting knife to explain the coupling relationship between the mantle member and the cutting knife shown in FIG. 4;

도 6은 커팅 나이프가 도관의 내주면에서 돌출된 부위를 통과할 때 판스프링에 의해 뒤로 젖혀지는 상태를 도시한 작동 설명도6 is an operation explanatory view showing a state in which the cutting knife is rolled back by the leaf spring when passing through the portion protruding from the inner peripheral surface of the conduit;

도 7은 맨틀부재에 커팅 나이프가 장착될 때, 커팅 나이프가 비틀림 스프링에 의해 탄성적으로 지지되는 결합 관계를 확대 도시한 분해 상세도FIG. 7 is an exploded detailed view illustrating an enlarged coupling relationship in which the cutting knife is elastically supported by the torsion spring when the cutting knife is mounted on the mantle member.

도 8 및 도 9는 커팅 나이프가 도관의 내주면에서 돌출된 부위를 통과할 때 비틀림 스프링에 의해 뒤로 젖혀지는 상태를 도시한 작동 설명도8 and 9 are operational explanatory views showing a state where the cutting knife is rolled back by the torsion spring when passing through the protruding portion of the inner peripheral surface of the conduit;

본 발명은 도관(상수관, 하수관, 공업용 강관, 또는 주철관)의 내주면에 부착된 스케일을 제거하기에 적합한 원통형 회전커터에 관한 것으로서, 보다 상세하게는 본 출원인의 대한민국 특허출원 제2007-0028087호(2007년 3월 22일 출원 ; 발명의 명칭 : 도관 스케일 제거장치)에 소개된 회전커터로 사용하기에 적합하도록 개선한 원통형 회전커터에 관한 것이다. The present invention relates to a cylindrical rotary cutter suitable for removing the scale attached to the inner circumferential surface of the conduit (water pipe, sewage pipe, industrial steel pipe, or cast iron pipe), more specifically, Korean Patent Application No. 2007-0028087 of the applicant ( Application of March 22, 2007, titled invention: Conduit Descaling Apparatus, which relates to an improved cylindrical rotary cutter suitable for use as a rotary cutter.

본 출원인의 대한민국 특허출원 제2007-0028087호(2007년 3월 22일 출원)의 "도관 스케일 제거장치"에 소개되어 있으나, 상기 도관 스케일 제거장치에 언급된 회전커터는 원통형의 범용 회전커터로 상수관, 하수관, 공업용 강관 또는 주철관 등의 도관(pipe)에 부착된 스케일을 제거할 때, 커팅 나이프의 에지부가 마찰열에 의해 쉽게 마모되고, 특히, 도관이 용접 등에 의해 내주면에서 약간 돌출된 부분을 가질 경우, 커팅 나이프가 돌출부를 파먹거나 커팅 나이프가 파손되는 단점이 있었다.Although the present invention is introduced in Korean Patent Application No. 2007-0028087 (filed March 22, 2007) of the applicant, "the conduit descaling device", the rotary cutter mentioned in the conduit descaling device is a cylindrical general purpose rotary cutter. When removing scales attached to pipes such as pipes, sewer pipes, industrial steel pipes or cast iron pipes, the edges of the cutting knife are easily worn by frictional heat, and in particular, the conduits may have a portion protruding slightly from the inner circumferential surface by welding or the like. In this case, the cutting knife has a disadvantage in that the protrusion or the cutting knife is broken.

따라서, 본 발명의 목적은 외주면에 다수개의 커팅 나이프가 장착된 맨틀부재들이 회전축에 끼워져 어느 한 맨틀부재에 장착된 커팅 나이프와 이와 이웃하는 맨틀부재에 장착된 커팅 나이프가 이격되어 커팅 나이프의 에지부에서 발생하는 마 찰열이 빨리 공냉시킬 수 있고, 어느 한 맨틀부재의 커팅 나이프가 파손되어도 이와 이웃하는 맨틀부재의 커팅 나이프에 영향을 미치지 않는 원통형 회전커터를 제공하는 것이다.Accordingly, an object of the present invention is to insert a mantle member equipped with a plurality of cutting knives on the outer circumferential surface of the rotary shaft so that the cutting knife mounted on any one mantle member and the cutting knife mounted on the neighboring mantle member are spaced apart from the edge portion of the cutting knife. The frictional heat generated in the air can be cooled quickly, and even if the cutting knife of any one mantle member is to provide a cylindrical rotary cutter does not affect the cutting knife of the neighboring mantle member.

본 발명의 다른 목적은 맨틀부재의 외주면에 장착된 커팅 나이프가 판스프링에 의해 탄성적으로 지지되어, 커팅 나이프의 에지부가 도관의 내주면에서 돌출된 부분을 통과할 때 커팅 나이프가 회전 반대방향으로 약간 젖혀짐으로써, 커팅 나이프의 에지부가 도관의 내주면에서 돌출된 부분을 피삭하거나 커팅 나이프가 파손되는 것을 방지할 있는 원통형 회전커터를 제공하는 것이다.Another object of the present invention is that the cutting knife mounted on the outer circumferential surface of the mantle member is elastically supported by the leaf spring, so that the cutting knife slightly in the opposite direction of rotation when the edge portion of the cutting knife passes through the portion projecting from the inner circumferential surface of the conduit. By being flipped, it is to provide a cylindrical rotary cutter which can prevent the cutting portion of the edge portion of the cutting knife protruding from the inner circumferential surface of the conduit or damage the cutting knife.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 원통형 회전커터는 외주면에 다수개의 커팅 나이프가 장착된 맨틀부재들이 회전축에 끼워져 고정되고, 어느 한 맨틀부재와 이와 이웃하는 맨틀부재 사이에 간격유지구가 배치되므로서, 어느 한 맨틀부재의 커팅 나이프와 이와 이웃하는 맨틀부재의 커팅 나이프 사이에 간격이 유지되므로서, 커팅 나이프의 에지부에서 발생하는 마찰열이 빨리 공냉시킬 수 있고, 어느 한 맨틀부재의 커팅 나이프가 파손되어도 이와 이웃하는 맨틀부재의 커팅 나이프에 영향을 미치지 않는 것을 특징으로 한다.Cylindrical rotary cutter according to the present invention for achieving the above object is a mantle member equipped with a plurality of cutting knives on the outer circumferential surface is fixed to the rotating shaft, the gap between the mantle member and the mantle member adjacent to the mantle member Since the gap is maintained between the cutting knife of any one mantle member and the cutting knife of the neighboring mantle member, the frictional heat generated at the edge of the cutting knife can be quickly cooled by air, and the cutting of any one mantle member Even if the knife is damaged, it does not affect the cutting knife of the neighboring mantle member.

또한, 본 발명은 상기 맨틀부재의 외주면에 일정간격으로 다수개의 슬롯이 형성되고, 상기 슬롯에 커팅 나이프의 받침부가 판스프링과 함께 끼워져 받침부의 외측 날개부가 판스프링에 의해 탄성적으로 지지되므로서, 커팅 나이프의 에지부가 과부하를 받으며, 판스프링이 펴지면서 커팅 나이프의 에지부가 맨틀부재의 회전 반대 방향으로 젖혀지게 되어, 커팅 나이프의 에지부가 도관의 내주면에서 돌출된 부분을 피삭하거나 커팅 나이프가 파손되는 것을 방지할 있는 것을 특징으로 한다.In addition, the present invention is a plurality of slots are formed on the outer circumferential surface of the mantle member at regular intervals, and the supporting portion of the cutting knife is fitted with the leaf spring in the slot so that the outer wing portion of the supporting portion is elastically supported by the leaf spring, The edge portion of the cutting knife is overloaded, and the leaf spring is unfolded so that the edge portion of the cutting knife is flipped in the opposite direction of rotation of the mantle member, so that the edge portion of the cutting knife projects a portion projecting from the inner peripheral surface of the conduit or breaks the cutting knife. It is characterized by the fact that it can prevent.

다른 대안으로, 또한, 본 발명은 상기 맨틀부재의 외주면에 일정간격으로 다수개의 슬롯이 형성되고, 상기 슬롯에 커팅 나이프의 받침부가 비틀림 스프링과 함께 끼워지므로서, 상기 커팅 나이프가 비틀림 스프링에 의해 탄성적으로 지지되며, 이때, 상기 커팅 나이프의 외측 날개부에 복수개의 포켓홈이 형성되고, 외측 날개부의 일측면에서 타측면으로 포켓홈을 관통하여 길게 핀구멍이 형성되고, 상기 포켓홈에 비틀림 스프링의 코일부가 배치되고, 상기 핀구멍에 끼워지는 핀에 상기 비틀림 스프링의 코일부가 끼워지고, 상기 비틀림 스프링의 제 1 아암이 커팅 나이프의 외측면 하단부에 밀착되고, 만곡부가 형성된 비틀림 스프링의 제 2 아암이 커팅 나이프의 받침부를 지지하므로서, 도관의 돌출부에 의한 반발력과 비틀림 스프링의 작용에 의해 커팅 나이프의 에지부가 낮아지고 뒤로 젖혀지는 것을 특징으로 한다.Alternatively, the present invention also has a plurality of slots are formed on the outer circumferential surface of the mantle member at regular intervals, the support portion of the cutting knife is fitted with the torsion spring in the slot, so that the cutting knife is burned by the torsion spring Sexually supported, at this time, a plurality of pocket grooves are formed in the outer blade portion of the cutting knife, a pin hole is formed long through the pocket groove from one side of the outer blade portion to the other side, the torsion spring in the pocket groove A coil portion of the torsion spring is disposed, and the coil portion of the torsion spring is fitted to the pin fitted into the pin hole, and the first arm of the torsion spring is in close contact with the lower end of the outer surface of the cutting knife, and the second arm of the torsion spring having the curved portion is formed. While supporting the cutting portion of the cutting knife, it is large due to the action of the repulsion force by the protrusion of the conduit and the torsion spring. It is characterized in that the edge of the putting knife is lowered and flipped back.

이하, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 및 도 2를 참조하면, 본 발명에 따른 원통형 회전커터는 외주면에 다수개의 커팅 나이프(50)가 장착된 맨틀부재(10 ; 10a, 10b, 10c, 10d,....)들이 회전축(20)에 끼워져 고정되고, 어느 한 맨틀부재(10a)와 이와 이웃하는 맨틀부재(10b) 사이에 회전축(20)에 끼워진 간격유지구(30)가 배치되므로서, 어느 한 맨틀부 재(10a)의 커팅 나이프(50)와 이와 이웃하는 맨틀부재(10b)의 커팅 나이프(50) 사이에 간격(s)이 유지된다.1 and 2, the cylindrical rotary cutter according to the present invention is a mantle member (10; 10a, 10b, 10c, 10d, ...) equipped with a plurality of cutting knives 50 on the outer peripheral surface of the rotating shaft ( 20, which is fixed to the gap between the one mantle member (10a) and the adjacent mantle member (10b) is placed on the rotation shaft 20, so that any one mantle member (10a) A gap s is maintained between the cutting knife 50 of the cutting knife 50 and the cutting knife 50 of the neighboring mantle member 10b.

이것에 의해, 도 2에 도시된 바와같이, 본 발명에 따른 원통형 회전커터는 본 출원인의 대한민국 특허출원 제2007-0028087호(2007년 3월 22일 출원)의 "도관 스케일 제거장치"에 장착되어 화살표(60) 방향으로 이동되고 화살표(62) 방향으로 회전하면서 도관(도시하지 않음)의 내주면에 부착된 스케일을 제거할 때, 어느 한 맨틀부재(10a)에 장착된 커팅 나이프(50)와 이와 이웃하는 맨틀부재(10b)에 장착된 커팅 나이프(50)가 간격유지구(30)에 의해 이격되어 커팅 나이프(50)의 에지부에서 발생하는 마찰열이 빨리 공냉되고, 어느 한 맨틀부재(10a)의 커팅 나이프가 파손되어도 이와 이웃하는 맨틀부재(10b)의 커팅 나이프에 영향을 미치지 않아, 어느 한 맨틀부재의 커팅 나이프가 파손되어도 도관의 내주면에 부착된 스케일을 균일하게 피삭할 수 있다.Thereby, as shown in Figure 2, the cylindrical rotary cutter according to the present invention is mounted on the "conduit descaling device" of the applicant's Korean Patent Application No. 2007-0028087 (filed March 22, 2007) When removing the scale attached to the inner circumferential surface of the conduit (not shown) while moving in the direction of the arrow 60 and rotating in the direction of the arrow 62, the cutting knife 50 mounted on any one mantle member 10a and this The cutting knife 50 mounted on the neighboring mantle member 10b is spaced apart by the spacing holder 30 so that the frictional heat generated at the edge portion of the cutting knife 50 is rapidly cooled by air, and any one mantle member 10a is provided. Even if the cutting knife is damaged, it does not affect the cutting knife of the neighboring mantle member 10b, and even if the cutting knife of any mantle member is damaged, the scale attached to the inner circumferential surface of the conduit can be uniformly machined.

상기 회전축(20)은 단면이 "D" 형상으로 형성되고, 상기 회전축(20)에 끼워지는 맨틀부재(10)의 중공부(11)가 회전축의 단면에 대응되게 "D"형상으로 형성된다. 이것에 의해, 회전축(20)에 끼워진 맨틀부재(10)가 회전축에서 헛돌지 않게 된다.The rotating shaft 20 is formed in a “D” shape in cross section, and the hollow portion 11 of the mantle member 10 fitted to the rotating shaft 20 is formed in a “D” shape so as to correspond to the cross section of the rotating shaft. Thereby, the mantle member 10 fitted to the rotating shaft 20 will not be lost in the rotating shaft.

상기 간격유지구(30)는 "D" 형상의 중공부(31)가 형성되고, 소정의 두께(t)를 가지며, 커팅 나이프(50)의 에지부가 도관의 내주면에 부착된 스케일을 제거할 때 간섭되지 않도록 외주면이 커팅 나이프의 에지부 높이보다 낮아야 한다.The spacer 30 is formed with a hollow portion 31 having a “D” shape, has a predetermined thickness t, and when the edge portion of the cutting knife 50 removes the scale attached to the inner circumferential surface of the conduit. The outer circumferential surface should be lower than the edge height of the cutting knife so as not to interfere.

도 3 및 도 4를 참조하면, 상기 맨틀부재(10)는 외주면에 일정간격으로 다수 개의 슬롯(12)이 형성되고, 상기 슬롯(12)에 커팅 나이프(50)의 받침부(51)가 판스프링(15)과 함께 끼워져 받침부(51)의 외측 날개부(52)가 판스프링(52)에 의해 탄성적으로 지지되므로서, 커팅 나이프(50)의 에지부(55)가 과부하를 받으며, 판스프링이 펴지면서 커팅 나이프(50)의 에지부(55)가 맨틀부재의 회전 반대 방향으로 젖혀지게 되고, 맨틀부재(10)의 양측면에 커버판(17, 18)이 볼트(19)에 의해 고정되어, 상기 커버판(17, 18)에 의해 커팅 나이프(50)가 맨틀부재(10)에서 이탈되는 것이 방지된다.3 and 4, the mantle member 10 has a plurality of slots 12 formed on the outer circumferential surface at predetermined intervals, and the supporting portion 51 of the cutting knife 50 is plated on the slot 12. Since the outer blade portion 52 of the support portion 51 is elastically supported by the leaf spring 52 to be fitted together with the spring 15, the edge portion 55 of the cutting knife 50 is overloaded, As the leaf spring is opened, the edge portion 55 of the cutting knife 50 is flipped in the opposite direction of rotation of the mantle member, and cover plates 17 and 18 are supported by bolts 19 on both sides of the mantle member 10. It is fixed to prevent the cutting knife 50 from the mantle member 10 by the cover plate (17, 18).

도 5를 참조하면, 상기 슬롯(12)은 사다리꼴 형상으로 형성되어, 커팅 나이프(50)의 받침부(51)의 내측 날개부(53)가 배치되는 제 1 사이드홈(12a)의 폭(w1) 보다 커팅 나이프(50)의 외측 날개부(52)가 배치되는 제 2 사이드홈(12b)의 폭(w2)이 크게 형성된다.Referring to FIG. 5, the slot 12 is formed in a trapezoidal shape, and the width w1 of the first side groove 12a in which the inner wing portion 53 of the support portion 51 of the cutting knife 50 is disposed. ), The width w2 of the second side groove 12b on which the outer blade portion 52 of the cutting knife 50 is disposed is larger.

상기 판스프링(15)은 슬롯(12)의 제 2 사이드홈(12b)에 배치되며, 슬롯(12)의 바닥면에 밀착되는 하부 수평부(15a)와, 상기 하부 수평부(15a)에서 굴절되어 연장되는 경사부(15b)와, 상기 경사부(15b)에서 굴절되어 연장되는 수직부(15c)와, 상기 수직부(15c)에서 굴절되어 연장되는 상부 수평부(15d)와, 상기 상부 수평부(15d)에서 굴절되어 연장되므로서 커팅 나이프(50)의 외측면(54) 하단부에 밀착되는 상부 지지부(15e)로 구성된다. The leaf spring 15 is disposed in the second side groove 12b of the slot 12 and is refracted by the lower horizontal portion 15a and the lower horizontal portion 15a to be in close contact with the bottom surface of the slot 12. The inclined portion 15b extending from the inclined portion 15b, the vertical portion 15c refracted and extended from the inclined portion 15b, the upper horizontal portion 15d refracted and extending from the vertical portion 15c, and the upper horizontal portion. It consists of an upper support part 15e which is refracted by the part 15d and is in close contact with the lower end of the outer surface 54 of the cutting knife 50.

이것에 의해, 커팅 나이프(50)의 받침부(51)의 외측 날개부(52)가 하부 수평부(15a), 경사부(15b), 수직부(15c) 및 상부 수평부(15d)에 의해 형성된 홈(15f)에 끼워져 탄성적으로 지지된다.Thereby, the outer wing part 52 of the base part 51 of the cutting knife 50 is set by the lower horizontal part 15a, the inclination part 15b, the vertical part 15c, and the upper horizontal part 15d. It fits in the formed groove 15f and is elastically supported.

도 6을 참조하면, 상기와 같이 구성된 커팅 나이프, 판스프링 및 맨틀부재의 슬롯은 다음과 같이 작용한다.Referring to Figure 6, the slot of the cutting knife, the leaf spring and the mantle member configured as described above acts as follows.

화살표(62) 방향으로 회전하는 맨틀부재(10)에 장착된 커팅 나이프(50)의 에지부(55)가 도관(70)의 내주면에 부착된 스케일(도시하지 않음)을 제거하는 과정에서 커팅 나이프(50)의 에지부(55)가 도관(70)의 내주면에서 돌출된 부분(71)을 통과할 때, 커팅 나이프(50)의 에지부(55)가 도관(70)의 돌출부(71)에 의해 과부하를 받을 받게되면, 판스프링(15)의 경사부(15b)가 하부 수평부(15a)와 나란하게 펴지면서 커팅 나이프(50)의 에지부(55)가 점선으로 도시된 상태에서 실선으로 상태로 젖혀지면서 커팅 나이프(50)의 에지부(55)가 도관(70)의 돌출부(71)를 통과하게 된다. 이것에 의해, 커팅 나이프(50)의 에지부(55)가 도관(70)의 내주면에서 돌출된 부분(71)을 피삭하거나 커팅 나이프가 파손되는 것을 방지할 있다.Cutting knife in the process of removing the scale (not shown) attached to the inner peripheral surface of the conduit 70, the edge portion 55 of the cutting knife 50 mounted on the mantle member 10 rotating in the direction of the arrow 62 When the edge portion 55 of 50 passes through the portion 71 protruding from the inner circumferential surface of the conduit 70, the edge portion 55 of the cutting knife 50 is directed to the protrusion 71 of the conduit 70. When subjected to overload, the inclined portion 15b of the leaf spring 15 extends in parallel with the lower horizontal portion 15a while the edge portion 55 of the cutting knife 50 is shown in a dotted line in a solid line. As it is turned over, the edge portion 55 of the cutting knife 50 passes through the protrusion 71 of the conduit 70. Thereby, the edge part 55 of the cutting knife 50 can prevent the part 71 which protruded from the inner peripheral surface of the conduit 70, or breaks a cutting knife.

참고로, 상기 도관(70)의 내주면에서 돌출된 부분(71)은 도관의 용접부위 또는 도관의 이음매일 수 있어, 이 부분의 경도가 다른 부분의 경도 보다 높아 커팅 나이프의 에지부가 이 부분에서 파손되기 쉽고, 도관의 용접부위 또는 이음매 부분이 커팅 나이프에 의해 피삭될 경우, 도관이 파손될 위험이 높다. For reference, the portion 71 protruding from the inner circumferential surface of the conduit 70 may be a welded portion of the conduit or a seam of the conduit, so that the hardness of this portion is higher than the hardness of the other portion, so that the edge portion of the cutting knife is broken at this portion. If the welded or seam portion of the conduit is easy to be cut by the cutting knife, there is a high risk of breakage of the conduit.

본 발명에 따른 커팅 나이프(50)가 맨틀부재(10)에 비틀림 스프림(150)에 의해 장착되는 실시예를 도 7 및 도 8을 참조하여 설명하기로 한다.An embodiment in which the cutting knife 50 according to the present invention is mounted by the torsion spring 150 to the mantle member 10 will be described with reference to FIGS. 7 and 8.

상기 맨틀부재(10)는 외주면에 일정간격으로 다수개의 슬롯(12)이 형성되고, 상기 슬롯(12)에 커팅 나이프(50)의 받침부(51)가 비틀림 스프링(150)과 함께 끼워지므로서, 상기 커팅 나이프(50)가 비틀림 스프링(150)에 의해 탄성적으로 지지된 다. 이때, 상기 커팅 나이프(50)는 외측 날개부(52)에 복수개의 포켓홈(56)이 형성되고, 외측 날개부(52)의 일측면에서 타측면으로 포켓홈(56)을 관통하여 길게 핀구멍(57)이 형성된다. 그리고, 상기 포켓홈(56)에 비틀림 스프링(150)의 코일부(151)가 배치되고, 상기 핀구멍(57)에 끼워지는 핀(80)에 상기 비틀림 스프링(150)의 코일부(151)가 끼워지고, 상기 비틀림 스프링(150)의 제 1 아암(152)이 커팅 나이프(50)의 외측면(54) 하단부에 밀착되고, 만곡부(154)가 형성된 비틀림 스프링(150)의 제 2 아암(153)이 커팅 나이프(50)의 받침부(51)를 지지한다.The mantle member 10 has a plurality of slots 12 are formed at a predetermined interval on the outer circumferential surface, and the supporting portion 51 of the cutting knife 50 is fitted with the torsion spring 150 in the slot 12 The cutting knife 50 is elastically supported by the torsion spring 150. In this case, the cutting knife 50 has a plurality of pocket grooves 56 are formed in the outer blade portion 52, the pin is long through the pocket groove 56 from one side of the outer blade portion 52 to the other side. The hole 57 is formed. The coil part 151 of the torsion spring 150 is disposed in the pocket groove 56, and the coil part 151 of the torsion spring 150 is disposed in the pin 80 fitted into the pin hole 57. Is fitted, the first arm 152 of the torsion spring 150 is in close contact with the lower end of the outer surface 54 of the cutting knife 50, the second arm of the torsion spring 150 with the curved portion 154 ( 153 supports the support 51 of the cutting knife 50.

상기 비틀림 스프링(150)은 연결부(155)에 의해 제 1 아암(152)이 연결되어, 제 1 아암(152), 코일부(151) 및 제 2 아암(153)이 쌍으로 형성될 수 있다.The torsion spring 150 may be connected to the first arm 152 by the connecting portion 155 so that the first arm 152, the coil part 151, and the second arm 153 may be formed in pairs.

이것에 의해, 화살표(62) 방향으로 회전하는 맨틀부재(10)에 장착된 커팅 나이프(50)의 에지부(55)가 도관(70)의 내주면에 부착된 스케일(도시하지 않음)을 제거하는 과정에서 커팅 나이프(50)의 에지부(55)가 도관(70)의 내주면에서 돌출된 부분(71)을 통과할 때, 도 9의 점선 상태에서 실선 상태로 도관(70)의 돌출부(71)에 의한 반발력과 비틀림 스프링의 작용에 의해 커팅 나이프(50)의 에지부(55)가 낮아지고 뒤로 젖혀진다. 즉, 비틀림 스프링(150)의 제 2 아암(153)에 형성된 만곡부(154)가 펴지면서 커팅 나이프(50)의 배치위치가 낮아지고, 커팅 나이프(50)에 작용하는 반작용 힘에 의해 비틀림 스프링(150)의 제 1 아암(152)이 뒤로 젖혀질 수 있어, 커팅 나이프(50)의 에지부(55)가 젖혀지면서 커팅 나이프(50)의 에지부(55)가 도관(70)의 돌출부(71)를 통과하게 된다. 이것에 의해, 커팅 나이프(50)의 에지부(55)가 도관(70)의 내주면에서 돌출된 부분(71)을 피삭하거나 커팅 나이 프가 파손되는 것을 방지할 있다. 또한, 상기 커팅 나이프(50)가 도관(70)의 돌출부(71)를 통과하게 되면, 비틀림 스프링(150)의 코일부(151) 및 만곡부(154)가 원상태로 복원되면서 커팅 나이프(50)가 원위치로 복원된다.Thereby, the edge part 55 of the cutting knife 50 attached to the mantle member 10 rotating in the direction of the arrow 62 removes the scale (not shown) attached to the inner circumferential surface of the conduit 70. When the edge portion 55 of the cutting knife 50 passes through the portion 71 protruding from the inner circumferential surface of the conduit 70 in the process, the protrusion 71 of the conduit 70 in a solid line state in a dotted line of FIG. 9. By the action of the reaction force and the torsion spring by the edge portion 55 of the cutting knife 50 is lowered and flipped back. That is, as the curved portion 154 formed on the second arm 153 of the torsion spring 150 is unfolded, the arrangement position of the cutting knife 50 is lowered, and the torsion spring (reaction force) acts on the cutting knife 50. The first arm 152 of 150 can be flipped back so that the edge 55 of the cutting knife 50 is flipped so that the edge 55 of the cutting knife 50 is the protrusion 71 of the conduit 70. Will pass). Thereby, the edge part 55 of the cutting knife 50 can prevent the part 71 which protruded from the inner peripheral surface of the conduit 70, or breaks a cutting knife. In addition, when the cutting knife 50 passes through the protruding portion 71 of the conduit 70, the coil portion 151 and the curved portion 154 of the torsion spring 150 is restored to its original state while the cutting knife 50 is It is restored to its original position.

위에서 설명한 바와같이, 본 발명에 따른 원통형 회전커터는 회전축에 끼워진 어느 한 맨틀부재에 장착된 커팅 나이프와 이와 이웃하는 맨틀부재에 장착된 커팅 나이프가 이격되어 커팅 나이프의 에지부에서 발생하는 마찰열이 빨리 공냉시킬 수 있고, 어느 한 맨틀부재의 커팅 나이프가 파손되어도 이와 이웃하는 맨틀부재의 커팅 나이프에 영향을 미치지 않으며, 커팅 나이프가 판스프링에 의해 맨틀부재에 탄성적으로 지지되어, 커팅 나이프의 에지부가 도관의 내주면에서 돌출된 부분을 통과할 때 커팅 나이프가 회전 반대방향으로 약간 젖혀짐으로써, 커팅 나이프의 에지부가 도관의 내주면에서 돌출된 부분을 피삭하거나 커팅 나이프가 파손되는 것을 방지할 있는 효과가 있다.As described above, in the cylindrical rotary cutter according to the present invention, the cutting knife mounted on any one mantle member fitted to the rotating shaft and the cutting knife mounted on the neighboring mantle member are spaced apart so that the frictional heat generated at the edge of the cutting knife is fast. It can be air-cooled, and even if the cutting knife of any one mantle member is damaged, it does not affect the cutting knife of the neighboring mantle member, and the cutting knife is elastically supported by the mantle member by the leaf spring, so that the edge portion of the cutting knife When passing through the protruding portion of the inner circumferential surface of the conduit, the cutting knife is slightly flipped in the opposite direction of rotation, thereby cutting the edge portion of the cutting knife protruding from the inner circumferential surface of the conduit or preventing the cutting knife from being damaged. .

Claims (7)

삭제delete 삭제delete 외주면에 다수개의 커팅 나이프(50)가 장착된 맨틀부재(10 ; 10a, 10b, 10c, 10d,....)들이 회전축(20)에 끼워져 고정되고, 어느 한 맨틀부재(10a)와 이와 이웃하는 맨틀부재(10b) 사이에 회전축(20)에 끼워진 간격유지구(30)가 배치되므로서, 어느 한 맨틀부재(10a)의 커팅 나이프(50)와 이와 이웃하는 맨틀부재(10b)의 커팅 나이프(50) 사이에 간격(s)이 유지되고,Mantle members (10; 10a, 10b, 10c, 10d, ....) having a plurality of cutting knives 50 is mounted on the outer peripheral surface is fixed to the rotating shaft 20, any one mantle member (10a) and neighbors Since the spacing holder 30 fitted to the rotating shaft 20 is disposed between the mantle member 10b, the cutting knife 50 of any mantle member 10a and the cutting knife of the neighboring mantle member 10b. Spacing s is maintained between 50, 상기 맨틀부재(10)는 외주면에 일정간격으로 다수개의 슬롯(12)이 형성되고, 상기 슬롯(12)에 커팅 나이프(50)의 받침부(51)가 판스프링(15)과 함께 끼워져 받침부(51)의 외측 날개부(52)가 판스프링(52)에 의해 탄성적으로 지지되므로서, 커팅 나이프(50)의 에지부(55)가 과부하를 받으며, 판스프링이 펴지면서 커팅 나이프(50)의 에지부(55)가 맨틀부재의 회전 반대 방향으로 젖혀지게 되고, 맨틀부재(10)의 양측면에 커버판(17, 18)이 볼트(19)에 의해 고정되어, 상기 커버판(17, 18)에 의해 커팅 나이프(50)가 맨틀부재(10)에서 이탈되는 것이 방지되는 것을 특징으로 하는 원통형 회전커터.The mantle member 10 has a plurality of slots 12 are formed on the outer circumferential surface at regular intervals, and the supporting portion 51 of the cutting knife 50 is fitted with the leaf spring 15 in the slot 12 As the outer blade portion 52 of the 51 is elastically supported by the leaf spring 52, the edge portion 55 of the cutting knife 50 is overloaded, and the cutting blade 50 is extended while the leaf spring is unfolded. The edge portion 55 of the) is flipped in the opposite direction of rotation of the mantle member, and the cover plates 17 and 18 are fixed to both sides of the mantle member 10 by bolts 19, so that the cover plate 17, 18) the cylindrical rotary cutter, characterized in that the cutting knife 50 is prevented from being separated from the mantle member (10). 제 3 항에 있어서,The method of claim 3, wherein 상기 슬롯(12)은 사다리꼴 형상으로 형성되어, 커팅 나이프(50)의 받침부(51)의 내측 날개부(53)가 배치되는 제 1 사이드홈(12a)의 폭(w1) 보다 커팅 나이프(50)의 외측 날개부(52)가 배치되는 제 2 사이드홈(12b)의 폭(w2)이 크게 형성되는 것을 특징으로 하는 원통형 회전커터.The slot 12 is formed in a trapezoidal shape, and the cutting knife 50 is larger than the width w1 of the first side groove 12a in which the inner wing portion 53 of the base 51 of the cutting knife 50 is disposed. Cylindrical rotary cutter, characterized in that the width (w2) of the second side groove (12b) in which the outer wing portion (52) of the) is formed large. 제 3 항에 있어서,The method of claim 3, wherein 상기 판스프링(15)은 슬롯(12)의 제 2 사이드홈(12b)에 배치되며, 슬롯(12)의 바닥면에 밀착되는 하부 수평부(15a)와, 상기 하부 수평부(15a)에서 굴절되어 연장되는 경사부(15b)와, 상기 경사부(15b)에서 굴절되어 연장되는 수직부(15c)와, 상기 수직부(15c)에서 굴절되어 연장되는 상부 수평부(15d)와, 상기 상부 수평부(15d)에서 굴절되어 연장되므로서 커팅 나이프(50)의 외측면(54) 하단부에 밀착 되는 상부 지지부(15e)로 구성되는 것을 특징으로 하는 원통형 회전커터. The leaf spring 15 is disposed in the second side groove 12b of the slot 12 and is refracted by the lower horizontal portion 15a and the lower horizontal portion 15a to be in close contact with the bottom surface of the slot 12. The inclined portion 15b extending from the inclined portion 15b, the vertical portion 15c refracted and extended from the inclined portion 15b, the upper horizontal portion 15d refracted and extending from the vertical portion 15c, and the upper horizontal portion. Cylindrical rotary cutter, characterized in that consisting of the upper support portion (15e) is in close contact with the lower end of the outer surface 54 of the cutting knife 50 while being refracted by the portion (15d). 외주면에 다수개의 커팅 나이프(50)가 장착된 맨틀부재(10 ; 10a, 10b, 10c, 10d,....)들이 회전축(20)에 끼워져 고정되고, 어느 한 맨틀부재(10a)와 이와 이웃하는 맨틀부재(10b) 사이에 회전축(20)에 끼워진 간격유지구(30)가 배치되므로서, 어느 한 맨틀부재(10a)의 커팅 나이프(50)와 이와 이웃하는 맨틀부재(10b)의 커팅 나이프(50) 사이에 간격(s)이 유지되고,Mantle members (10; 10a, 10b, 10c, 10d, ....) having a plurality of cutting knives 50 is mounted on the outer peripheral surface is fixed to the rotating shaft 20, any one mantle member (10a) and neighbors Since the spacing holder 30 fitted to the rotating shaft 20 is disposed between the mantle member 10b, the cutting knife 50 of any mantle member 10a and the cutting knife of the neighboring mantle member 10b. Spacing s is maintained between 50, 상기 맨틀부재(10)는 외주면에 일정간격으로 다수개의 슬롯(12)이 형성되고, 상기 슬롯(12)에 커팅 나이프(50)의 받침부(51)가 비틀림 스프링(150)과 함께 끼워지므로서, 상기 커팅 나이프(50)가 비틀림 스프링(150)에 의해 탄성적으로 지지되며, 이때, 상기 커팅 나이프(50)의 외측 날개부(52)에 복수개의 포켓홈(56)이 형성되고, 외측 날개부(52)의 일측면에서 타측면으로 포켓홈(56)을 관통하여 길게 핀구멍(57)이 형성되고, 상기 포켓홈(56)에 비틀림 스프링(150)의 코일부(151)가 배치되고, 상기 핀구멍(57)에 끼워지는 핀(80)에 상기 비틀림 스프링(150)의 코일부(151)가 끼워지고, 상기 비틀림 스프링(150)의 제 1 아암(152)이 커팅 나이프(50)의 외측면(54) 하단부에 밀착되고, 만곡부(154)가 형성된 비틀림 스프링(150)의 제 2 아암(153)이 커팅 나이프(50)의 받침부(51)를 지지하는 것을 특징으로 하는 원통형 회전커터.The mantle member 10 has a plurality of slots 12 are formed at a predetermined interval on the outer circumferential surface, and the supporting portion 51 of the cutting knife 50 is fitted with the torsion spring 150 in the slot 12 In addition, the cutting knife 50 is elastically supported by the torsion spring 150, and at this time, a plurality of pocket grooves 56 are formed in the outer wing portion 52 of the cutting knife 50, the outer wing A pin hole 57 is formed to penetrate the pocket groove 56 from one side of the part 52 to the other side, and the coil part 151 of the torsion spring 150 is disposed in the pocket groove 56. The coil portion 151 of the torsion spring 150 is fitted into the pin 80 fitted into the pin hole 57, and the first arm 152 of the torsion spring 150 is a cutting knife 50. The second arm 153 of the torsion spring 150, which is in close contact with the lower end of the outer surface 54, and the curved portion 154 is formed to support the support 51 of the cutting knife 50. A cylindrical rotary cutter according to claim. 제 6 항에 있어서,The method of claim 6, 상기 비틀림 스프링(150)은 연결부(155)에 의해 제 1 아암(152)이 연결되어, 제 1 아암(152), 코일부(151) 및 제 2 아암(153)이 쌍으로 형성될 수 있는 것을 특 징으로 하는 원통형 회전커터.The torsion spring 150 is connected to the first arm 152 by the connecting portion 155, so that the first arm 152, the coil portion 151 and the second arm 153 can be formed in pairs Cylindrical rotary cutter.
KR1020070030150A 2007-03-28 2007-03-28 Cylindrical rotary cutter KR100761050B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101546520B1 (en) * 2015-03-13 2015-08-24 (주)크린텍 An apparatus and a method for regenerating superannuated pipes
KR20210044399A (en) * 2019-10-15 2021-04-23 주식회사 시명 Flat device for road marking paint
CN115323945A (en) * 2022-09-02 2022-11-11 王军 Highway is managed culvert for railway construction

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Publication number Priority date Publication date Assignee Title
KR20040067518A (en) * 2003-01-23 2004-07-30 선광주 A knife fixation flange for rotabater

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Publication number Priority date Publication date Assignee Title
KR20040067518A (en) * 2003-01-23 2004-07-30 선광주 A knife fixation flange for rotabater

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101546520B1 (en) * 2015-03-13 2015-08-24 (주)크린텍 An apparatus and a method for regenerating superannuated pipes
KR20210044399A (en) * 2019-10-15 2021-04-23 주식회사 시명 Flat device for road marking paint
KR102375743B1 (en) * 2019-10-15 2022-03-17 주식회사 시명 Flat device for road marking paint
CN115323945A (en) * 2022-09-02 2022-11-11 王军 Highway is managed culvert for railway construction
CN115323945B (en) * 2022-09-02 2023-12-05 昆明顺弘新材料有限公司 Pipe culvert for highway and railway construction

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