KR100882567B1 - Self locking type bolt system - Google Patents

Self locking type bolt system Download PDF

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Publication number
KR100882567B1
KR100882567B1 KR1020080071676A KR20080071676A KR100882567B1 KR 100882567 B1 KR100882567 B1 KR 100882567B1 KR 1020080071676 A KR1020080071676 A KR 1020080071676A KR 20080071676 A KR20080071676 A KR 20080071676A KR 100882567 B1 KR100882567 B1 KR 100882567B1
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KR
South Korea
Prior art keywords
nut
main
bolt
sub
screw part
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KR1020080071676A
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Korean (ko)
Inventor
최동호
박완순
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최동호
주식회사 화인종합기획
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Priority to KR1020080071676A priority Critical patent/KR100882567B1/en
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Publication of KR100882567B1 publication Critical patent/KR100882567B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • F16B39/126—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft
    • F16B39/128—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft by means of eccentrical or spiral interengaging parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

A self-tightening bolt faster structure is provided to guarantee a secure bonding state of a steel structure without performing an additional post process and maintain a bolt fastening state for a long period of time. A self-tightening bolt fastener structure includes a main screw part(11) formed at the head of a bolt(10) and a sub-screw part(12) having a diameter smaller than the diameter of the main screw. The sub-screw part is connected with the main screw part. A thread is formed at the front end of the bolt in a direction opposite to the direction of the thread of the main screw. The main screw part is combined with a main nut(21) and the sub-screw part is combined with a sub nut(22). A round protrusion is formed at one side of the main nut. The round protrusion and a screw hole of the main nut are concentric.

Description

자기결착형 볼트 체결구조{Self locking type bolt system}Self locking type bolt system

본 발명은 강구조물의 시공에 있어서 볼트에 의한 부재간 접합에 관한 것으로, 볼트의 선단부에 두부(頭部)측 나사선과 반대방향의 나사선이 형성되고 직경이 축소된 부나사부를 형성하여 내경이 상이한 한쌍의 너트를 체결함으로써 나사의 풀림현상을 방지할 수 있도록 한 것이다.The present invention relates to the inter-member joining by bolts in the construction of steel structures, wherein a pair of threads having opposite internal diameters are formed by forming a screw thread opposite to the head side thread line at the tip end of the bolt and reducing the diameter thereof. It is to prevent the loosening of the screw by tightening the nut.

강구조물의 시공에 있어서 부재간 접합은 용접, 리벳결합 및 나사결합을 통하여 이루어지는데, 이중 나사결합은 시공이 간편할 뿐 아니라 열변형 등의 문제점을 야기하지 않는 장점이 있다.In the construction of steel structures, the joining between members is performed through welding, rivet coupling, and screw coupling, and double screw coupling has advantages in not only causing easy construction but also causing problems such as thermal deformation.

도 1은 나사결합을 통한 강구조 부재(9)간 접합을 예시한 것으로 동 도면을 통하여 알 수 있는 바와 같이, 중첩된 부재(9)에 통공을 형성하고 이 통공에 볼트(10) 및 너트를 결합하여 체결함으로써 부재(9)간 접합을 실시하게 된다.FIG. 1 illustrates the joining between the steel structural members 9 through screwing. As can be seen from the figure, a hole is formed in the overlapping member 9 and the bolt 10 and the nut are coupled to the hole. By joining, the members 9 are joined together.

이러한 강구조 부재(9)간 나사결합에 있어서, 접합대상 부재(9)를 고정하는 힘은 크게 볼트(10)의 전단응력과 중첩된 부재(9)의 접촉면에 작용하는 마찰력으로 구분할 수 있다.In the screw coupling between the steel structural members 9, the force for fixing the joining member 9 can be largely divided into the shear stress of the bolt 10 and the friction force acting on the contact surface of the overlapping member (9).

즉, 도 1의 발췌 확대부에서와 같이 중첩된 양측의 부재(9)는 볼트(10)의 봉상체(棒狀體)가 발휘하는 전단응력에 의하여 1차적으로 고정되는데, 원형단면의 볼트(10)는 역학적으로 힌지(hinge)로 거동하므로 볼트(10)를 축으로 부재(9)에 작용하는 모멘트에는 저항할 수 없는 바, 볼트(10)의 두부(頭部)와 볼트(10)에 체결된 너트가 중첩된 부재(9)를 압박하는 과정에서 부재(9)간 접촉면에 작용하는 마찰력에 의하여 볼트(10)를 축으로 하는 회전을 구속함으로써 비로소 부재(9)간 강결이 달성되는 것이다.That is, as shown in the enlarged excerpt of FIG. 1, the members 9 on both sides of which are overlapped are primarily fixed by the shear stress exerted by the rod-shaped body of the bolt 10. 10 is dynamically acts as a hinge, so it cannot resist the moment acting on the member 9 with the bolt 10 as an axis, so that the head and the bolt 10 of the bolt 10 are not resisted. Hardening between the members 9 is achieved by restraining the rotation about the bolt 10 by the frictional force acting on the contact surface between the members 9 in the process of pressing the overlapping member 9. .

이러한 부재(9)간 중첩 및 나사 압착을 통한 접합은 부재(9)의 물성을 변화시킬 수 있는 용접 등의 가공 없이도 우수한 접합강도를 발현하는 방식으로서, 고장력볼트의 적용을 통하여 부재(9)간 마찰력을 극대화할 수 있다.The joining by overlapping and screwing the members 9 is a method of expressing excellent bonding strength without machining, such as welding, which can change the properties of the members 9, and between the members 9 through the application of a high tension bolt. Maximize the friction force.

전술한 바와 같이, 나사결합을 통한 강구조 부재(9)의 접합에 있어서 접합대상 부재(9)의 접촉면에 소기의 마찰력이 발현되기 위해서는 부재(9)간 압착상태가 안정적으로 유지되어야 하며 이는 볼트(10)와 너트의 견고한 체결상태 유지가 선행됨으로써 가능하다.As described above, in the joining of the steel structure member 9 through screwing, in order for the desired frictional force to be expressed on the contact surface of the member 9 to be joined, the crimping state between the members 9 must be stably maintained. 10) This is possible by maintaining a firm fastening state between the nut and the nut.

즉, 접합부위의 볼트(10) 및 너트가 견고한 체결상태를 유지하여 볼트(10)의 두부와 너트간에 소기의 압축력이 작용할 때, 부재(9)간 접촉면에도 소요 마찰력이 발현되는 것이며, 볼트(10)와 너트의 체결상태가 느슨해지면 부재(9)간 마찰력이 소멸되면서 볼트(10)의 전단응력에 의한 지지만이 이루어지므로 구조물의 안정성에 심각한 문제가 발생될 수 있는 것이다.In other words, when the bolt 10 and the nut on the joint portion are kept in a firm fastening state and a desired compressive force is applied between the head and the nut of the bolt 10, the required frictional force is also expressed on the contact surface between the members 9. 10) When the fastening state of the nut is loosened, the friction force between the members 9 disappears and only the support by the shear stress of the bolt 10 is made, which may cause serious problems in the stability of the structure.

도 1은 강구조 부재(9)의 볼트(10)를 통한 연결상태를 예시한 것으로 동 도면의 발췌 확대부에서와 같이, 중첩된 부재(9)간에 상반되는 방향의 인장, 압축 및 회전력이 가해지면 부재(9) 표면에 접한 볼트(10)의 두부 또는 너트에 회전력이 작용하여 볼트(10)가 풀리는 현상이 발생될 수 있다.FIG. 1 illustrates the connection state of the steel structure member 9 through the bolt 10. As shown in the enlarged excerpt of the drawing, when tension, compression, and rotational forces in opposite directions are applied between the overlapping members 9, FIG. A rotational force may be applied to the head or nut of the bolt 10 in contact with the surface of the member 9 to cause the bolt 10 to loosen.

볼트(10)의 풀림현상은 하중이 빈번하게 반복 재하되는 구조물이나 진동하중이 재하되는 구조물에서 심각하게 나타날 수 있으며, 이러한 풀림현상을 방지 또는 억제하기 위하여 볼트(10)를 천공하여 핀(pin)을 삽입하는 등의 후처리를 실시할 수 있으나, 시공성이 낮을 뿐 아니라 천공부위가 취약부로 작용하는 등의 문제점이 있었다.The loosening phenomenon of the bolt 10 may appear seriously in a structure in which a load is repeatedly repeated or a structure in which a vibration load is applied. In order to prevent or suppress the loosening phenomenon, the pin 10 may be drilled into a pin. Post-treatment, such as inserting, can be performed, but not only the workability is low, but there are problems such that the perforation site acts as a weak spot.

본 발명은 전술한 문제점을 감안하여 창안한 것으로, 볼트(10)의 두부(頭部)측에는 주나사부(11)가 구성되며, 볼트(10)의 선단측에는 주나사부(11)의 나선과 반대방향의 나선이 형성되고 주나사부(11)의 직경보다 작은 직경의 부나사부(12)가 구성되며, 주나사부(11)에는 주너트(21)가 체결되고, 부나사부(12)에는 부너트(22)가 체결되되, 주너트(21)와 부너트(22)가 밀착됨을 특징으로 하는 자기결착형 볼트 체결구조이다.The present invention has been made in view of the above-described problems, and the main screw portion 11 is formed on the head side of the bolt 10, and the opposite side to the helix of the main screw portion 11 on the tip side of the bolt 10. Is formed and a sub-thread portion 12 having a diameter smaller than the diameter of the main screw portion 11 is formed, the main nut portion 21 is fastened to the main screw portion 11, and the sub-nut portion 22 is attached to the sub-thread portion 12. ) Is fastened, but the self-tightening bolt fastening structure, characterized in that the main nut 21 and the secondary nut 22 is in close contact.

또한, 상기 부너트(22)의 일면에 주나사부(11)의 직경보다 큰 내경을 가지는 확공부(23)가 형성되거나, 상기 주너트(21)의 일면에 주너트(21)의 나사공과 동심의 환형돌부(24)가 형성됨을 특징으로 하는 자기결착형 볼트 체결구조 또는 상기 주너트(21)와 부너트(22) 사이에는 주나사부(11)의 직경보다 큰 내경을 가지는 압착링(25)이 결합됨을 특징으로 하는 자기결착형 볼트 체결구조이다.In addition, an enlarged portion 23 having an inner diameter larger than the diameter of the main screw portion 11 is formed on one surface of the sub nut 22, or concentric with a screw hole of the main nut 21 on one surface of the main nut 21. Self-locking bolt fastening structure, characterized in that the annular protrusions of the 24 or the pressing ring 25 having an inner diameter larger than the diameter of the main screw portion 11 between the main nut 21 and the secondary nut (22) Self-binding bolt fastening structure, characterized in that coupled.

본 발명을 통하여 별도의 후처리 공정 없이도 강구조물의 견고한 접합상태를 확보할 수 있을 뿐 아니라, 볼트의 체결상태를 장기간 견고하게 유지할 수 있어 전체 구조물의 내구성 또한 제고하는 효과를 얻을 수 있다.Through the present invention, it is possible to secure a firm bonding state of the steel structure without a separate post-treatment process, and to maintain the fastening state of the bolt for a long time, thereby improving the durability of the entire structure.

본 발명의 상세한 구성 및 작용원리를 첨부된 도면을 통하여 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A detailed configuration and principle of operation of the present invention will be described with reference to the accompanying drawings.

우선 도 2는 본 발명을 구성하는 볼트(10) 및 너트를 도시한 것으로, 동 도면을 통하여 알 수 있는 바와 같이, 본 발명의 볼트(10)에는 서로 다른 직경과 나선방향을 가지는 주나사부(11) 및 부나사부(12)가 형성된다.First, FIG. 2 illustrates a bolt 10 and a nut constituting the present invention. As can be seen from the same figure, the bolt 10 of the present invention has a main screw portion 11 having different diameters and spiral directions. ) And the sub-threaded portion 12 are formed.

즉, 도시된 바와 같이, 볼트(10)의 두부(頭部) 측에는 주나사부(11)가 형성되고 선단 측에는 주나사부(11)보다 작은 직경을 가지고 반대방향의 나선이 형성된 부나사부(12)가 구성되며, 이들 주나사부(11) 및 부나사부(12)에는 각각 주너트(21) 및 부너트(22)가 결합된다.That is, as shown, the main screw portion 11 is formed on the head side of the bolt 10 and the sub-screw portion 12 having a smaller diameter than the main screw portion 11 and the spiral in the opposite direction is formed on the tip side A main nut 21 and a sub nut 22 are coupled to the main screw portion 11 and the sub screw portion 12, respectively.

도 3은 충첩된 부재(9)에 본 발명의 볼트(10), 주너트(21) 및 부너트(22)가 결합된 상태를 도시한 것으로, 동 도면을 통하여 알 수 있는 바와 같이, 부재(9)가 변형되면서 주너트(21)를 회전시킬 경우 그에 따라 부너트(22)가 회전되면서 더욱더 견고하게 구속되는 자기결착(自己結着) 구조를 가지게 된다.3 illustrates a state in which the bolt 10, the main nut 21, and the secondary nut 22 of the present invention are coupled to the folded member 9, and as can be seen from the drawing, the member ( When the main nut 21 is rotated while 9) is deformed, the sub nut 22 is rotated accordingly to have a self-bonding structure that is more firmly constrained.

한편, 도 4 내지 도 6은 주나사부(11)와 부나사부(12)의 경계부와 주너트(21)와 부너트(22)의 접촉부가 정확하게 일치하는 것이 사실상 불가능하므로, 나선방향과 직경이 변화하는 경계부를 수용할 수 있는 수단을 구성한 실시예이다.On the other hand, FIGS. 4 to 6 show that the boundary between the main screw portion 11 and the sub screw portion 12 and the contact portion between the main nut 21 and the sub nut 22 are virtually impossible to exactly match, so that the spiral direction and the diameter change. The embodiment constitutes a means capable of accommodating the boundary portion.

즉, 도 4는 부너트(22)의 일면에 주나사부(11)의 직경보다 큰 내경을 가지는 확공부(23)를 형성하여 경계부를 수용함으로써 더욱 견고한 주너트(21) 및 부너트(22)간 밀착이 가능하도록 한 것이며, 도 5는 주너트(21)의 일면에 나사공과 동심의 환형돌부(環形突部)(24)를 형성하여 환형돌부(24) 내부에 상기 경계부를 수용 할 수 있도록 한 것이다.That is, FIG. 4 illustrates the expansion of the expansion portion 23 having an inner diameter larger than the diameter of the main screw portion 11 on one surface of the sub nut 22 to accommodate the boundary portion, thereby making the main nut 21 and the sub nut 22 more rigid. 5 is to allow close contact with each other, Figure 5 is to form a concentric annular protrusion (24) concentric with the screw hole on one surface of the main nut 21 to accommodate the boundary inside the annular protrusion (24) It is.

또한, 도 6은 별도 요소로서 주나사부(11)의 직경보다 크고 부너트(22)의 외경보다 작은 내경을 가지는 압착링(25)을 주너트(21)와 부너트(22) 사이에 결합함으로써 경계부를 수용하고 주너트(21) 및 부너트(22)간 밀착상태를 확보할 수 있도록 한 것이다.In addition, FIG. 6 shows that as a separate element, the pressing ring 25 having an inner diameter larger than the diameter of the main screw portion 11 and smaller than the outer diameter of the nut 22 is coupled between the main nut 21 and the nut 22. It is to accommodate the boundary portion and to ensure a close contact between the main nut 21 and the secondary nut (22).

도 1은 종래의 볼트를 이용한 부재 접합상태 사시도1 is a perspective view of a member bonded state using a conventional bolt

도 2는 본 발명의 분해 사시도2 is an exploded perspective view of the present invention

도 3은 본 발명을 통한 부재 접합상태 사시도 및 대표단면도Figure 3 is a perspective view and a representative cross-sectional view of the member through the present invention

도 4는 확공부가 형성된 본 발명의 일 실시예 설명도4 is an explanatory view of an embodiment of the present invention in which a dilator is formed;

도 5는 환형돌부가 형성된 본 발명의 일 실시예 설명도5 is a view illustrating an embodiment of the present invention in which an annular protrusion is formed

도 6은 압착링이 설치된 본 발명의 일 실시예 설명도Figure 6 is an illustration of an embodiment of the present invention the compression ring is installed

<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>

9 : 부재9: absence

10 : 볼트10: Bolt

11 : 주나사부11: main screw part

12 : 부나사부12: sub-threading

21 : 주너트21: Znut

22 : 부너트22: Butter

23 : 확공부23: expansion

24 : 환형돌부24: annular protrusion

25 : 압착링25: pressing ring

Claims (4)

삭제delete 삭제delete 볼트(10)의 두부(頭部)측에는 주나사부(11)가 구성되며, 볼트(10)의 선단측에는 주나사부(11)의 나선과 반대방향의 나선이 형성되고 주나사부(11)의 직경보다 작은 직경의 부나사부(12)가 구성되며, 주나사부(11)에는 주너트(21)가 체결되고, 부나사부(12)에는 부너트(22)가 체결되되, 주너트(21)와 부너트(22)가 밀착되는 볼트 체결구조에 있어서,A main screw portion 11 is formed on the head side of the bolt 10, and a spiral in the direction opposite to the helix of the main screw portion 11 is formed on the tip side of the bolt 10 and is larger than the diameter of the main screw portion 11. A small diameter sub-thread part 12 is formed, and the main nut part 11 is fastened to the main nut 21, and the sub-thread part 12 is fastened to the negative nut 22, and the main nut 21 and the negative nut are fastened. In the bolt fastening structure in which the 22 is in close contact, 주너트(21)의 일면에는 주너트(21)의 나사공과 동심의 환형돌부(24)가 형성됨을 특징으로 하는 자기결착형 볼트 체결구조.Self-locking bolt fastening structure, characterized in that the annular protrusions 24 concentric with the screw hole of the main nut 21 is formed on one surface of the main nut (21). 삭제delete
KR1020080071676A 2008-07-23 2008-07-23 Self locking type bolt system KR100882567B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101309927B1 (en) 2012-06-29 2013-09-17 하이디스 테크놀로지 주식회사 Apparatus for transferring substrates
CN105221540A (en) * 2015-07-10 2016-01-06 马勒技术投资(中国）有限公司 With the cylinder cover enclosure Anti-off bolt of seal ring
KR101717929B1 (en) * 2016-02-05 2017-03-20 (주)표준산업 Jig for machining pipe
KR102271533B1 (en) * 2020-12-29 2021-07-01 주식회사 두드림테크 Bridge bearing structure with improved stability

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1073118A (en) 1996-08-28 1998-03-17 Mino Kogyo Kk Bolt and nut
KR20020050089A (en) * 2001-09-24 2002-06-26 김충익 Bolt for preventing loosening
KR20040015320A (en) * 2004-01-30 2004-02-18 주식회사 브릿지코리아 The two step loose prevented skrew
KR20040053050A (en) * 2004-05-31 2004-06-23 조주혁 Bolt and nut not being loose

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1073118A (en) 1996-08-28 1998-03-17 Mino Kogyo Kk Bolt and nut
KR20020050089A (en) * 2001-09-24 2002-06-26 김충익 Bolt for preventing loosening
KR20040015320A (en) * 2004-01-30 2004-02-18 주식회사 브릿지코리아 The two step loose prevented skrew
KR20040053050A (en) * 2004-05-31 2004-06-23 조주혁 Bolt and nut not being loose

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101309927B1 (en) 2012-06-29 2013-09-17 하이디스 테크놀로지 주식회사 Apparatus for transferring substrates
CN105221540A (en) * 2015-07-10 2016-01-06 马勒技术投资(中国）有限公司 With the cylinder cover enclosure Anti-off bolt of seal ring
KR101717929B1 (en) * 2016-02-05 2017-03-20 (주)표준산업 Jig for machining pipe
KR102271533B1 (en) * 2020-12-29 2021-07-01 주식회사 두드림테크 Bridge bearing structure with improved stability

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