KR20110094930A - Simple test equipment to test the strength of the joints of a structure - Google Patents

Simple test equipment to test the strength of the joints of a structure Download PDF

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Publication number
KR20110094930A
KR20110094930A KR1020100014669A KR20100014669A KR20110094930A KR 20110094930 A KR20110094930 A KR 20110094930A KR 1020100014669 A KR1020100014669 A KR 1020100014669A KR 20100014669 A KR20100014669 A KR 20100014669A KR 20110094930 A KR20110094930 A KR 20110094930A
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South Korea
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load cell
strength
hydraulic ram
measuring
joint portion
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KR1020100014669A
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Korean (ko)
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박윤기
하우일
김병주
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현대중공업 주식회사
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Publication of KR20110094930A publication Critical patent/KR20110094930A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0017—Tensile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0296—Welds

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: A temporary testing device for measuring strength of joint part is provided to improve entire production efficiency and to simplify joint part strength measuring processes. CONSTITUTION: A temporary testing device for measuring strength of joint part comprises a support plate(10), a load cell(20), a hydraulic ram(30) and a measuring device. The load cell is installed on the support plate. The hydraulic ram is integrally formed in the load cell. The hydraulic ram is touched with a cabin joint part. The measuring device is connected to the hydraulic ram and load cell. The piston is up and down operated according to the fluid pressure which flows in the cylinder.

Description

조인트 부위 강도측정용 간이시험장치{Simple test equipment to test the strength of the joints of a structure}Simple test equipment to test the strength of the joints of a structure}

본 발명은 건설중장비의 캐빈 조인트 부위와 같은 부재 조인트의 강도측정용 간이시험장치에 관한 것으로, 부재 및 용접부를 포함하는 조인트에 대한 강도를 측정하여 조인트 부분에 대한 보강브래킷 설치유무 및 적정 보강브래킷을 설치할 수 있는 조인트 부위 강도측정용 간이시험장치에 관한 것이다. The present invention relates to a simple test device for measuring the strength of a member joint, such as a cabin joint portion of a heavy construction equipment, by measuring the strength of the joint including the member and the welded portion to install the reinforcement bracket for the joint portion and the appropriate reinforcement bracket The present invention relates to a simple test apparatus for measuring the strength of joints that can be installed.

일반적으로, 건설중장비는 건설현장에서 토목작업을 위해 사용되는 장비로, 건설 현장에서 흙, 모래 등을 굴착하는 굴착작업, 굴착된 토사를 운반하는 운반작업, 운반된 토사를 화물차량에 싣거나 내리는 하역작업, 도로 정지작업, 제설작업, 견인작업을 등을 수행하는 데 널리 사용되고 있다.In general, heavy construction equipment is used for civil works at the construction site, excavation work for excavating soil, sand, etc., transport work for carrying the excavated soil, and loading or unloading the transported soil on the cargo vehicle It is widely used for unloading, road stopping, snow removal, and towing.

상기와 같은 건설중장비에는 조작을 위한 운전실로서의 캐빈이 차체에 설치되어 있으며, 이와 같은 캐빈은 박스형상의 구조로, 네 코너에 필러가 설치되어 있으며, 상기 필러에 철판등이 연결되는 구성으로 이루어져 있고, 전방면부에 전면창이 마련되어 있으며, 낙석등으로부터 운전자를 보호하기 위하여 상단에 보호가드가 설치되어 있다.Cabin as a cab for operation is installed on the vehicle body in the construction equipment as described above, the cabin is a box-shaped structure, the pillars are installed in four corners, consisting of a structure in which the iron plate is connected to the pillar. The front window is provided at the front side, and a guard is installed at the top to protect the driver from falling rocks.

상기와 같이 구성되는 건설중장비용 캐빈은 운전자의 안전을 위하여 ISO 등에서 규정하고 있는 안전도 시험을 실시해야 하며 규정을 만족하지 못 할 경우 규정 만족 시까지 구조 보강 및 시험의 과정을 반복해야 한다. 기존의 캐빈에 대한 안전도 시험 결과 시험 하중이 증가함에 따라 캐빈의 주요 구조부재를 연결하는 보강 브라켓의 용접부에서 균열이 발생 및 전파되었으며 이는 캐빈의 안전도 규정 만족을 위해서는 주 부재간 조인트 강도의 확보가 중요함을 의미한다. 주부재간 조인트의 강도를 확보하기 위해 보강 브라켓을 설치하는데 보강 브라켓의 형상과 용접 방법이 캐빈의 안전도에 큰 영향을 미치고 있으며 안전도 규정을 만족하지 못해 규정 만족시 까지 캐빈 구조물을 반복적으로 수정, 제작할 경우 많은 비용이 추가로 소요된다. 따라서 캐빈 주부재의 연결 조인트부만 따로 제작하여 강도평가를 할 경우 시험 비용을 절감할 수 있다. Cabin for heavy construction equipment constructed as above should carry out safety test prescribed by ISO for the safety of the driver, and if it does not satisfy the regulations, the process of structural reinforcement and test shall be repeated until the regulation is satisfied. As a result of the safety test of the existing cabin, as the test load increased, cracks were generated and propagated in the welded part of the reinforcing bracket connecting the main structural members of the cabin, which secured joint strength between the main members to satisfy the safety regulations of the cabin. Means important. Reinforcement brackets are installed to secure the strength of joints between the main members.The shape of the reinforcement bracket and the welding method have a great influence on the safety of the cabin, and the cabin structure cannot be repeatedly modified and manufactured until the safety requirements are satisfied. If you spend a lot of money. Therefore, it is possible to reduce the test cost when the strength evaluation by making only the joint joint of the cabin main member separately.

캐빈의 조인트 부위와 같은 수직부재의 강도를 측정하기 위하여, 기존의 시험 장비를 활용하기 위해서는 별도의 지그를 제작해야 하며 시험 준비 및 시험에 많은 시간이 소요되어 작업 능률 저하 등 여러 가지 문제점이 있었다.
In order to measure the strength of the vertical member, such as the joint portion of the cabin, in order to utilize the existing test equipment, a separate jig must be manufactured, and a lot of time is required for test preparation and test, and there are various problems such as deterioration of work efficiency.

본 발명은 상기와 같은 목적을 해소하기 위한 것으로, 그 목적은 캐빈 조인트 부위와 같은 구조물에 대한 강도를 쉽고 빠르게 측정하여, 보강브래킷 설치유무 및 적정 보강브래킷의 설치를 가능하게 하는 조인트 부위 강도측정용 간이시험장치를 제공하는 것이다. The present invention is to solve the above object, the purpose is to measure the strength of the structure, such as the cabin joint part easily and quickly, for the joint portion strength measurement to enable the installation of the reinforcement bracket and the appropriate reinforcement bracket It is to provide a simple test apparatus.

본 발명의 또다른 목적은 캐빈의 조인트 부위에 대한 강도측정에 따른 적정 보강방안을 선정 이를 통해 운전자의 안전을 보호할 수 있는 조인트 부위 강도측정용 간이시험장치를 제공하는 것이다. Still another object of the present invention is to provide a simple test apparatus for measuring joint strength that can protect the driver's safety by selecting an appropriate reinforcement plan according to strength measurement of a joint portion of a cabin.

본 발명의 또다른 목적은 로드셀과 유압램의 일체화에 의해 형성되어 구조가 간단하고 유지보수가 용이한 건설중장비의 캐빈 조인트 부위와 같은 구조물의 강도측정용 간이시험장치를 제공하는 것이다.
Still another object of the present invention is to provide a simple test apparatus for measuring the strength of a structure, such as a cabin joint part of heavy equipment, which is formed by the integration of a load cell and a hydraulic ram, which is simple in structure and easy to maintain.

본 발명은 지지플레이트와, 상기 지지플레이트에 설치되는 로드셀과, 상기 로드셀에 일체로 형성되고 구조물의 조인트 부위에 접촉되는 유압램과, 상기 로드셀 및 유압램과 연결되는 표시기를 포함하여, 로드셀에 가해진 힘에 의해 구조물의 조인트 부위에 대한 강도가 실시간으로 측정되도록 되어 있다.
The present invention includes a support plate, a load cell installed on the support plate, a hydraulic ram integrally formed in the load cell and in contact with a joint portion of the structure, and an indicator connected to the load cell and the hydraulic ram, The strength of the joints of the structure is measured in real time by force.

이와 같이 본 발명은 로드셀과 유압램으로 이루어진 간이시험기에 의해 조인트 부위(철판의 직교용접부위)에 대한 강도측정이 간단하고 빠르게 이루어지며, 이를 통해 전체 생산능률 및 효율을 증대시킬 수 있다. As described above, the present invention makes it simple and fast to measure the strength of the joint part (orthogonal welding part of the steel plate) by a simple tester composed of a load cell and a hydraulic ram, thereby increasing the overall production efficiency and efficiency.

또한, 본 발명은 측정되는 강도에 따라 설치되는 보강브래킷의 형상을 선택적용할 수 있다. In addition, the present invention can selectively use the shape of the reinforcing bracket to be installed according to the measured strength.

또한, 본 발명은 구조가 간단하여 제작비용이 저렴하고, 소형으로 이루어져 있어 이동 및 투입이 용이하며, 조인트 부위의 강도를 신속하고 간단하게 측정할 수 있는 등 많은 효과가 있다.
In addition, the present invention has a number of effects, such as simple structure, low manufacturing cost, small size, easy to move and insert, can quickly and simply measure the strength of the joint portion.

도 1 은 본 발명에 따른 구성을 보인 예시도
도 2 는 본 발명에 따른 작동상태를 보인 일예시도1 is an illustration showing a configuration according to the present invention;
Figure 2 is an exemplary view showing an operating state according to the present invention

도 1 은 본 발명에 따른 구성을 보인 예시도를, 도 2 는 본 발명에 따른 작동상태를 보인 일예시도를 도시한 것으로, 본 발명은 지지플레이트(10)와, 상기 지지플레이트(10)에 설치되는 로드셀(20)과, 상기 로드셀(20)에 일체로 형성되고 조인트 부위(51)에 접촉되는 유압램(30)과, 상기 로드셀(20) 및 유압램(30)과 연결되는 표시기(40)를 포함하여, 로드셀(20)에 가해진 힘에 의해 조인트 부위(51)에 대한 강도가 실시간으로 측정되도록 되어 있다.
1 is an exemplary view showing a configuration according to the present invention, Figure 2 is an exemplary view showing an operating state according to the present invention, the present invention is a support plate 10 and the support plate 10 Load cell 20 to be installed, the hydraulic ram 30 integrally formed in the load cell 20 and in contact with the joint portion 51, the indicator 40 connected to the load cell 20 and the hydraulic ram 30 ), The strength with respect to the joint part 51 is measured in real time by the force applied to the load cell 20.

상기 지지플레이트(10)는 로드셀(20)의 수평 및 지지대 역할을 하는 것으로, 상측면에 로드셀이 일체로 설치되며, 로드셀 보다 크기가 큰 판 형상을 구비한다. The support plate 10 serves as a horizontal and the support of the load cell 20, the load cell is integrally installed on the upper side, and has a plate shape larger than the load cell.

상기 로드셀(20)은 유압램(30)에 의해 전달되는 힘의 분포를 통해 조인트 부위(51) 즉, 철판과 철판이 직교되도록 용접된 부위에 대한 강도를 측정한다. The load cell 20 measures the strength of the joint portion 51, that is, the welded portion to be orthogonal to the iron plate through the distribution of the force transmitted by the hydraulic ram 30.

상기 유압램(30)은 로드셀(20)과 일체로 형성되어 조인트 부위(51)와의 접촉에 따른 반발력에 의해 힘을 하부에 위치하는 로드셀(20)에 전달한다. The hydraulic ram 30 is integrally formed with the load cell 20 to transmit the force to the load cell 20 located below by the repulsive force due to contact with the joint portion 51.

즉, 상기 유압램(30)은 로드셀(20)과 일체로 형성되고 내부로 유압이 공급되는 실린더(31)와, 상기 실린더(31)내로 공급되는 유압에 의해 상하작동되는 피스톤(32)과, 상기 피스톤(32)의 상단에 설치되어 캐빈 조인트 부위(51)에 접촉되는 접촉대(33)를 포함하도록 되어 있다. That is, the hydraulic ram 30 is formed integrally with the load cell 20 and the cylinder 31 which is supplied with hydraulic pressure therein, the piston 32 which is operated up and down by the hydraulic pressure supplied into the cylinder 31, The upper end of the piston 32 is provided to include a contact table 33 in contact with the cabin joint portion 51.

상기 유압램(30)의 실린더(31)내로 공급되는 유압은 별도로 설치된 유압공급수단(60)에 의해 공급되며, 상기 유압공급수단(60)은 공지된 기술이므로, 이에 대한 상세한 설명은 생략한다. The hydraulic pressure supplied into the cylinder 31 of the hydraulic ram 30 is supplied by a hydraulic pressure supply means 60 separately installed, and the hydraulic pressure supply means 60 is a well-known technique, and thus a detailed description thereof will be omitted.

상기 표시기(40)는 로드셀(20)에 의해 측정된 힘을 외부로 나타내기 위한 것으로, 지지플레이트(10)에 수직으로 설치된 고정대(11)에 연결되어 설치되어 있으며, 유압램(30) 및 로드셀(20)에 각각 연결되어 유압램(30)으로 공급되는 유압량 및 로드셀(20)에 의해 측정된 힘(강도)를 나타낸다.
The indicator 40 is for indicating the force measured by the load cell 20 to the outside, and is connected to the fixing stand 11 installed perpendicular to the support plate 10, the hydraulic ram 30 and the load cell The amount of hydraulic pressure and strength measured by the load cell 20 and the hydraulic pressure supplied to the hydraulic ram 30 are respectively connected to 20.

즉, 본 발명에 따른 간이시험장치(100)는 지지플레이트(10), 로드셀(20), 유압램(30)이 하부에서 상부방향으로 순차적으로 적층되어 일체로 형성되어 있으며, 상기 로드셀(20)과 유압램(30)은 동일중심축 상에 위치하도록 설치되고, 로드셀 일측에 위치하도록 지지플레이트(10)에 고정대(11)가 돌출형성되며, 상기 고정대(11)에 표시기(40)가 연결 설치되어 있다.
That is, in the simple test apparatus 100 according to the present invention, the support plate 10, the load cell 20, and the hydraulic ram 30 are sequentially stacked from the bottom to the upper direction, and are integrally formed with the load cell 20. And the hydraulic ram 30 is installed to be located on the same center axis, the support plate 10 is formed to protrude from the support plate 10 so as to be located on one side of the load cell, the indicator 40 is connected to the fixed stand 11 It is.

상기와 같이 구성된 본 발명은 조인트 부위(51) 하단에 유압램(30)과 조인트 부위의 철판(또는 파이프)이 수직되도록 간이시험장치(100)를 위치시킨 후, 유압에 의해 유압램을 작동시키면, 유압램의 피스톤이 상승되어 조인트 부위에 접촉대(33)가 접촉되게 되며, 이러한 접촉대의 접촉 및 공급되는 유압에 의해 유압램(30)이 로드셀(20)에 힘을 가하게 되고, 로드셀(20)은 가해지는 힘을 측정하여 표시기(40)를 통해 외부로 나타내게 된다. According to the present invention configured as described above, after the simple test device 100 is positioned so that the hydraulic ram 30 and the iron plate (or pipe) of the joint portion are vertical to the lower portion of the joint portion 51, the hydraulic ram is operated by hydraulic pressure. , The piston of the hydraulic ram is raised to contact the contact portion 33 to the joint portion, the hydraulic ram 30 is applied to the load cell 20 by the contact and the supplied hydraulic pressure of the contact portion, the load cell 20 ) Is measured externally through the indicator 40 by measuring the applied force.

이와 같은 본 발명의 간이시험장치는 조인트 부위에 대한 강도를 측정하여 보강브래킷 설치여부 및 적정 보강브래킷의 선택을 판단할 수 있을 뿐만 아니라, 보강브래킷을 설치한 후, 이에 따른 강도를 실시간으로 측정하여 불량발생 여부를 미연에 방지할 수 있다. 또한, 본 발명의 간이시험장치는 캐빈 조인트 부위에만 한정되는 것은 아니며, 강도측정을 요하는 다양한 분야에 신속하게 투입적용될 수 있다.
Such a simple test apparatus of the present invention can determine the installation of the reinforcement bracket and the selection of the appropriate reinforcement bracket by measuring the strength of the joint portion, and after installing the reinforcement bracket, by measuring the strength in real time accordingly The occurrence of a defect can be prevented in advance. In addition, the simple test apparatus of the present invention is not limited to the cabin joint portion, it can be quickly applied to various fields requiring strength measurement.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다.
The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

(10) : 지지플레이트 (11) : 고정대
(20) : 로드셀 (30) : 유압램
(31) : 실린더 (32) : 피스톤
(33) : 접촉대 (40) : 표시기
(51) : 조인트 부위 (60) : 유압공급수단(10): Support plate (11): Fixture
20: load cell 30: hydraulic ram
(31): cylinder 32: piston
33: contact point 40: indicator
(51): Joint part (60): Hydraulic supply means

Claims (2)

지지플레이트와,
상기 지지플레이트에 설치되는 로드셀과,
상기 로드셀에 일체로 형성되고 캐빈 조인트 부위에 접촉되는 유압램과,
상기 로드셀 및 유압램과 연결되는 측정기를 포함하여,
로드셀에 가해진 힘에 의해 구조물의 조인트 부위에 대한 강도가 실시간으로 측정되는 것을 특징으로 하는 조인트 부위 강도측정용 간이시험장치.
Support plate,
A load cell installed on the support plate;
A hydraulic ram integrally formed in the load cell and in contact with the cabin joint;
Including a measuring device connected to the load cell and the hydraulic ram,
Simple test device for measuring the strength of the joint portion, characterized in that the strength of the joint portion of the structure is measured in real time by the force applied to the load cell.
청구항 1 에 있어서;
상기 유압램은 로드셀과 일체로 형성되고 내부로 유압이 유입되는 실린더와, 상기 실린더내로 유입되는 유압에 의해 상하작동되는 피스톤과, 상기 피스톤의 상단에 설치되어 캐빈 조인트 부위에 접촉되는 접촉대를 포함하는 것을 특징으로 하는 조인트 부위 강도측정용 간이시험장치.The method of claim 1,
The hydraulic ram is formed integrally with the load cell and includes a cylinder into which the hydraulic pressure flows into the cylinder, a piston vertically operated by the hydraulic pressure flowing into the cylinder, and a contact table installed on the upper end of the piston to contact the cabin joint portion. Simple test apparatus for measuring the strength of the joint portion.
KR1020100014669A 2010-02-18 2010-02-18 Simple test equipment to test the strength of the joints of a structure KR20110094930A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494949A (en) * 2011-10-20 2012-06-13 华中科技大学 Strength testing device for welded ball
CN104792634A (en) * 2014-01-16 2015-07-22 宝山钢铁股份有限公司 Hot rolled strip steel welding seam quality testing apparatus and hot rolled strip steel welding seam quality testing method
KR102296691B1 (en) 2021-01-11 2021-09-01 강신길 Knee close type urinal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494949A (en) * 2011-10-20 2012-06-13 华中科技大学 Strength testing device for welded ball
CN104792634A (en) * 2014-01-16 2015-07-22 宝山钢铁股份有限公司 Hot rolled strip steel welding seam quality testing apparatus and hot rolled strip steel welding seam quality testing method
CN104792634B (en) * 2014-01-16 2017-06-06 宝山钢铁股份有限公司 The weld inspection device and its method for inspection of hot-strip
KR102296691B1 (en) 2021-01-11 2021-09-01 강신길 Knee close type urinal

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