KR20200101607A - A hook with a mechanical crash prevention device during wire break of a single wire type hoist - Google Patents

A hook with a mechanical crash prevention device during wire break of a single wire type hoist Download PDF

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KR20200101607A
KR20200101607A KR1020190019647A KR20190019647A KR20200101607A KR 20200101607 A KR20200101607 A KR 20200101607A KR 1020190019647 A KR1020190019647 A KR 1020190019647A KR 20190019647 A KR20190019647 A KR 20190019647A KR 20200101607 A KR20200101607 A KR 20200101607A
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wire
hook
pressing
sheave
prevention device
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KR1020190019647A
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Korean (ko)
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KR102171193B1 (en
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이익환
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이익환
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54Safety gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34Crane hooks

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The present invention relates to a hook, and more particularly, to a hook formed to prevent fall when a wire is broken, which comprises: a hook formed to hang, ascend and descend a load body to move the same as a single wire type hoist ascends and descends by winding and unwinding a wire; and a drum-type sheave for smoothly unwinding and winding the wire by being rotated while the load body is hung by the hook to be lifted and lowered. The hook of the present invention further comprises: wire pressing units (112-1, 112-2) formed to prevent falling of the hook by pressing the wire by being mechanically operated by a sudden increase in rotational speed of the sheave when the wire is broken; and compression springs (1111, 111-2) operated to provide a pressing force during a pressing operation of the wire pressing units (112-1, 112-2).

Description

싱글 와이어 타입 호이스트의 와이어 파단 시 기계식 추락방지장치가 형성된 후크{A hook with a mechanical crash prevention device during wire break of a single wire type hoist}A hook with a mechanical crash prevention device during wire break of a single wire type hoist}

본 발명은 싱글 와이어 타입 호이스트에 있어서 와이어 파단 시 기계식 추락방지장치가 형성된 후크에 관한 것으로, The present invention relates to a hook formed with a mechanical fall prevention device when the wire breaks in a single wire type hoist,

더 구체적으로는More specifically

싱글 와이어 타입 호이스트에 있어서 와이어가 감기고 풀림에 따라 오르내리면서 하중체 이동을 위하여 하중체를 걸어 올리고 내리도록 형성된 후크와, 후크에 하중체를 걸어 올리고 내릴 때 회전운동하면서 와이어가 원활하게 풀리고 감기도록 하는 드럼형 쉬브를 포함하는 후크에 있어서:In a single wire type hoist, a hook is formed to lift and lower the load to move the load while the wire is wound up and down as it is unwound, and the wire is smoothly unwound and wound while rotating when the load is raised and lowered by the hook. In the hook comprising a drum type sheave:

와이어 파단 시 쉬브의 갑작스런 회전속도 증가에 의해 기계식으로 작동하여 와이어를 눌러 후크가 추락하지 않도록 형성된 와이어누름부(112-1,112-2) 및; Wire pressing portions 112-1 and 112-2 formed to prevent the hook from falling by pressing the wire by mechanically operating by a sudden increase in rotational speed of the sheave when the wire is broken;

와이어누름부(112-1,112-2)의 누름동작 시 누르는 힘을 제공하도록 작동하는 압축스프링(1111,111-2);을 포함하는 것을 특징으로 하는 와이어 파단 시 추락 방지되도록 형성된 후크에 관한 것이다.It relates to a hook formed to prevent fall when the wire is broken, characterized in that it comprises a; compression springs (1111, 111-2) that operate to provide a pressing force during the pressing operation of the wire pressing portions (112-1, 112-2).

크레인의 와이어 파단에 의한 추락사고를 방지하기 위하여 크레인 자체에 전기식 또는 에어식 등의 추락방지장치를 설치되어 있으나 이들 추락방지장치들은 주로 더블 와이어 타입 호이스트에 설치된 것이며, 싱글 와이어 타입 호이스트는 추락방지장치가 설치될 수 없었으며, 이로 인하여 와이어 파단 추락사고로 물적, 인적 피해가 발생하고 있는 실정이다.Fall prevention devices such as electric or air type are installed in the crane itself to prevent fall accidents due to the breakage of the wire of the crane, but these fall prevention devices are mainly installed on double wire type hoists, and single wire type hoists are fall prevention devices. Was not able to be installed, and physical and human damages are occurring due to a wire break and fall accident.

본 발명은 싱글 와이어 타입 호이스트의 와이어 파단시 추락방지를 위하여, 하중체를 매다는 후크에 전기 전자식 방식을 배제하고 기계식으로 작동하는 추락방지장치를 형성하여 와이어가 파단되면 순간적으로 쉬브의 회전속도가 빨라지는 변화에 의해 유동이 발생하면서 스프링을 정지시키는 공이를 치고 스프링이 작동하면서 와이어누름부가 와이어를 쉬브에 압착 고정함으로써 후크가 파단되지 않은 와이어에 매달려 추락이 방지되도록 형성한 것으로, 와이어 파단 시 순간적으로 누름동작이 작동해야 하므로 오작동 방지를 위하여 전기 전자적 방법을 배제하고 안전성과 민첩성이 우수한 기계식으로 형성한 것이다.In the present invention, in order to prevent a fall when a wire of a single wire type hoist is broken, the electric and electronic method is excluded from the hook for suspending the load, and a fall prevention device that operates mechanically is formed. Is formed so that the hook is suspended from the unbroken wire by hitting the ball to stop the spring while the spring is operated, and the wire pressing part squeezes the wire to the sheave to prevent the hook from falling on the unbroken wire. Since the pressing operation must be operated, it is formed in a mechanical type with excellent safety and agility, excluding electrical and electronic methods to prevent malfunction.

종래기술로서 실용신안등록 제20-0232990호에 2개의 후크를 형성하여 추락을 방지한 구성이 공개되어 있으나 하중체의 유동에 의한 와이어 파단 방지하기 위하여 2개의 후크를 사용하는 것이다.As a prior art, a configuration in which two hooks are formed to prevent fall by forming two hooks in Utility Model Registration No. 20-0232990 is disclosed, but two hooks are used to prevent wire breakage by the flow of the load body.

본 발명은 싱글 와이어 타입 호이스트의 와이어 파단 시 추락방지를 위하여, 와이어가 파단되면 순간적으로 쉬브의 회전속도가 빨라짐에 의해 순간 작동하는 와이어누름부에 의해 와이어를 쉬브에 압축 고정함으로써 파단되지 않은 와이어에 하중체가 매달려 추락되지 않도록 형성된 기계식 추락방지장치를 형성한 후크를 제공함을 발명의 목적으로 한다.In order to prevent the single wire type hoist from falling when the wire is broken, when the wire is broken, the rotational speed of the sheave is instantaneously accelerated, and the wire is compressed and fixed to the sheave by a wire pressing unit that operates instantly. It is an object of the present invention to provide a hook formed with a mechanical fall prevention device formed so that a load body is suspended from falling.

이와 같은 목적을 달성하기 위하여, 본 발명은 싱글 와이어 타입 호이스트에 있어서 와이어가 감기고 풀림에 따라 오르내리면서 하중체 이동을 위하여 하중체를 걸어 올리고 내리도록 형성된 후크와, 후크에 하중체를 걸어 올리고 내릴 때 회전운동하면서 와이어가 원활하게 풀리고 감기도록 하는 드럼형 쉬브를 포함하는 후크에 있어서:In order to achieve such an object, the present invention provides a hook formed to raise and lower a load body to move the load body while moving up and down as the wire is wound and unwound in a single wire type hoist, and a hook formed to raise and lower the load body on the hook. In the hook comprising a drum-type sheave to smoothly unwind and wind the wire while rotating when:

와이어 파단 시 쉬브의 갑작스런 회전속도 증가에 의해 기계식으로 작동하여 와이어를 눌러 후크가 추락하지 않도록 형성된 와이어누름부(112-1,112-2) 및; Wire pressing portions 112-1 and 112-2 formed to prevent the hook from falling by pressing the wire by mechanically operating by a sudden increase in rotational speed of the sheave when the wire is broken;

와이어누름부(112-1,112-2)의 누름동작 시 누르는 힘을 제공하도록 작동하는 압축스프링(1111,111-2);을 포함하는 것을 특징으로 하는 와이어 파단 시 추락 방지되도록 형성된 후크에 관한 것이다.It relates to a hook formed to prevent fall when the wire is broken, characterized in that it comprises a; compression springs (1111, 111-2) that operate to provide a pressing force during the pressing operation of the wire pressing portions (112-1, 112-2).

더블 와이어 타입 호이스트는 호이스트 본체에 와이어 파단 시 추락방지장치를 설치하였으나 싱글 와이어 타입 호이스트는 선이 끊어지면 후크가 분리되면서 추락하기 때문에 지금까지는 추락방지장치 설치가 불가능하였다.The double wire type hoist has a fall prevention device installed on the hoist body when the wire breaks, but the single wire type hoist falls off with the hook detached when the wire is broken, so it was not possible to install a fall prevention device until now.

본 발명은 엘리베이트 등에서 추락 시 추락을 방지하기 위하여 설치하는 기계식 추락방지장치 원리를 공중에서 하중체를 매다는 후크에 직접 형성하여 와이어가 끊어지면 후크가 급속하게 회전속도가 빨라지면서 추락하는 순간에 회전속도 변화에 의해 유동하는 유동체가 스프링을 정지하는 공이를 분리시키고 스프링이 동작하면서 와이어누름부가 와이어를 쉬브에 압착하여 고정하는 것이다.In the present invention, the principle of a mechanical fall prevention device installed to prevent a fall when falling from an elevator, etc., is formed directly on a hook that suspends a load in the air. When the wire is cut, the rotation speed of the hook rapidly increases and the rotation speed at the moment of fall. The fluid flowing by the change separates the ball that stops the spring, and the wire pressurizes and fixes the wire to the sheave while the spring operates.

와이어누름부는 양쪽 2개가 형성되어 작동하기 때문에 순간 추락으로 파단된 쪽에 설치된 와이어누름부가 결합에 실패하더라도 파단되지 않은 쪽에 설치된 와이어누름부가 누름을 성공하도록 형성한 것이다.Since two wire pressers are formed on both sides and operate, the wire presser installed on the non-broken side succeeds in pressing even if the wire presser installed on the broken side due to an instant fall fails to join.

이와 같이 본 발명은 하중체를 매달아 승하강, 이동기키는 싱글 와이어 타입 호이스트의 후크에 직접 기계식 추락방지장치를 구현하여 와이어 파단 시 추락을 방지할 수 있었던 것이다.As described above, the present invention was able to prevent a fall when a wire breaks by implementing a mechanical fall prevention device directly on the hook of a single wire type hoist for lifting and lowering the load body and moving the key.

등록 제10-0848994호에 건물의 옥상 등 상부에 설치된 고정 베이스에 쉬브를 설치하여 회전속도 변화에 의해 작동하는 누름장치에 의해 승강기 추락 방지 엘리베이터 조속기가 공지되어 있으며, 본 발명은 상기 조속기 원리와 같은 것이므로 조속기의 구체적인 설명은 생략함.In Registration No. 10-0848994, an elevator governor that prevents an elevator from falling is known by a pressing device that operates by a change in rotational speed by installing a sheave on a fixed base installed on the roof of a building, etc., and the present invention is the same as the governor principle. Therefore, the detailed description of the governor is omitted.

본 발명은 싱글 와이어 타입 호이스트에서 하중체를 걸어서 승하강, 이동하는 후크에 기계식 추락방지장치를 구현함으로써 와이어 파단에서 누름결합까지 순간적으로 벌어지는 작동에 의해 파단되지 않은 쪽 와이어에 하중체가 걸린 후크가 매달려 추락방지하는 것이며, 이러한 추락방지장치는 호이스트 후크 뿐 아니라 비슷하게 작동하는 싱글 와이어 타입의 크레인 후크에 적용할 수 있으며, 이러한 추락방지 기능으로 와이어 파단에 의한 후크 추락사고 인한 물적 인적 피해를 방지로 산업현장의 안전사고 방지에 크게 기여하는 것이다.The present invention implements a mechanical fall prevention device on a hook that moves up and down by walking a load on a single wire type hoist, so that the hook on the non-breaking wire is suspended by an instantaneous operation from breaking the wire to pressing. This fall prevention device can be applied not only to a hoist hook but also to a single wire type crane hook that works similarly, and this fall prevention function prevents damage to property and personnel caused by a hook fall accident due to wire breakage. It greatly contributes to preventing safety accidents.

도 1: 본 발명의 후크에 형성된 추락방지장치의 일 실시예를 도시한 것이다.Figure 1: shows an embodiment of the fall prevention device formed on the hook of the present invention.

도 1에서 보는 바와 같이 싱글 와이어 타입 호이스트는 하나의 와이어(136)가 호이스트에서 내려와 쉬브(115)에 몇바퀴 감겨서 다시 호이스트로 올라가도록 형성되어 와이어가 파단되면 호이스트에서 와이어를 고정하더라도 후크가 분리 추락되기 때문에 후크 자체에 추락방지장치를 구현한 것이다.As shown in Fig. 1, the single wire type hoist is formed so that one wire 136 descends from the hoist, is wound around the sheave 115, and rises back to the hoist. Because it falls, a fall prevention device is implemented on the hook itself.

한쪽의 와이어에서 파단이 발생하면 쉬브(115)는 추락하면서 회전속도가 순간 가속되며, 캣취(113)은 이러한 순간 가속을 감지하여 유동하는 유동체가 스프링을 스톱시키고 있던 공이를 쳐서 분리시키게 되며, 공이가 분리되면 스프링(111-1,111-2)이 작동하면서 와이어누름부(112-1,112-2)가 작동하면서 와이어를 눌러서 쉬브에 고정하도록 형성된 것이다. When a break occurs in one of the wires, the sheave 115 falls and the rotational speed is instantaneously accelerated, and the catch 113 senses this instantaneous acceleration and separates the flowing fluid by striking the ball that was stopping the spring. When is separated, the springs 111-1 and 111-2 operate and the wire pressing portions 112-1 and 112-2 operate and press the wire to be fixed to the sheave.

본 발명은 호이스트 뿐 아니라 크레인 등 유사한 구조의 장치에서 하중체를 걸어 승하강, 이동시키는 후크에 구현할 수 있음은 물론이다.It goes without saying that the present invention can be embodied in a hoist as well as a hook that raises and lowers a load and moves it in a device having a similar structure such as a crane.

본 발명의 구성은 상기 실시예에 한정되는 것은 아니며 통상의 기술범주 내에서 실시할 수 있는 다양한 실시예를 포함하는 것이다.The configuration of the present invention is not limited to the above embodiments, and includes various embodiments that can be implemented within the general technical scope.

111-1,111-2:스프링 112-1,112-2:와이어누름부 113:캣취 115:쉬브 136:와이어111-1,111-2: spring 112-1,112-2: wire press 113: catch 115: sheave 136: wire

Claims (1)

싱글 와이어 타입 호이스트에 있어서 와이어가 감기고 풀림에 따라 오르내리면서 하중체 이동을 위하여 하중체를 걸어 올리고 내리도록 형성된 후크와, 후크에 하중체를 걸어 올리고 내릴 때 회전운동하면서 와이어가 원활하게 풀리고 감기도록 하는 드럼형 쉬브를 포함하는 후크에 있어서:

와이어 파단 시 쉬브의 갑작스런 회전속도 증가에 의해 기계식으로 작동하여 와이어를 눌러 후크가 추락하지 않도록 형성된 와이어누름부(112-1,112-2) 및;

와이어누름부(112-1,112-2)의 누름동작 시 누르는 힘을 제공하도록 작동하는 압축스프링(1111,111-2);을 포함하는 것을 특징으로 하는 와이어 파단 시 추락 방지되도록 형성된 후크.
In a single wire type hoist, a hook is formed to lift and lower the load to move the load while the wire is wound up and down as it is unwound, and the wire is smoothly unwound and wound while rotating when the load is raised and lowered by the hook. In the hook comprising a drum type sheave:

Wire pressing portions 112-1 and 112-2 formed to prevent the hook from falling by pressing the wire by mechanically operating by a sudden increase in rotational speed of the sheave when the wire is broken;

A hook formed to prevent fall when the wire is broken, comprising: a compression spring (1111, 111-2) that operates to provide a pressing force during a pressing operation of the wire pressing portions (112-1, 112-2).
KR1020190019647A 2019-02-20 2019-02-20 A hook with a mechanical crash prevention device during wire break of a single wire type hoist KR102171193B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112960580A (en) * 2021-03-31 2021-06-15 冠亚机械工业(昆山)有限公司 Electric hoist capable of preventing steel wire rope from being broken and safety protection method thereof
CN113104736A (en) * 2021-03-31 2021-07-13 冠亚机械工业(昆山)有限公司 Movable pulley wire rope safety arrangement
CN115352998A (en) * 2022-10-12 2022-11-18 南通丰隆机械有限公司 Suspension device for conveying goods
CN118289631A (en) * 2024-06-05 2024-07-05 洛阳诚发电力设备有限公司 Hoisting equipment for 5G communication tower

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003012279A (en) * 2001-06-27 2003-01-15 Komatsu Ltd Random winding preventive device of winding drum
KR20080076062A (en) * 2007-02-14 2008-08-20 (주)진영이엔지 Prevent folling carriage apparatus of hoist

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003012279A (en) * 2001-06-27 2003-01-15 Komatsu Ltd Random winding preventive device of winding drum
KR20080076062A (en) * 2007-02-14 2008-08-20 (주)진영이엔지 Prevent folling carriage apparatus of hoist

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112960580A (en) * 2021-03-31 2021-06-15 冠亚机械工业(昆山)有限公司 Electric hoist capable of preventing steel wire rope from being broken and safety protection method thereof
CN113104736A (en) * 2021-03-31 2021-07-13 冠亚机械工业(昆山)有限公司 Movable pulley wire rope safety arrangement
CN115352998A (en) * 2022-10-12 2022-11-18 南通丰隆机械有限公司 Suspension device for conveying goods
CN118289631A (en) * 2024-06-05 2024-07-05 洛阳诚发电力设备有限公司 Hoisting equipment for 5G communication tower

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