KR20210090834A - Protective tube for temperature instruments and Protective tube manufacturing method - Google Patents

Protective tube for temperature instruments and Protective tube manufacturing method Download PDF

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KR20210090834A
KR20210090834A KR1020200004044A KR20200004044A KR20210090834A KR 20210090834 A KR20210090834 A KR 20210090834A KR 1020200004044 A KR1020200004044 A KR 1020200004044A KR 20200004044 A KR20200004044 A KR 20200004044A KR 20210090834 A KR20210090834 A KR 20210090834A
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measuring instrument
temperature
temperature measuring
sensor
protective tube
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KR1020200004044A
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Korean (ko)
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정경진
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정경진
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/08Protective devices, e.g. casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes
    • G01K13/02Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2205/00Application of thermometers in motors, e.g. of a vehicle
    • G01K2205/04Application of thermometers in motors, e.g. of a vehicle for measuring exhaust gas temperature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

Abstract

The present invention relates to a protective tube for a temperature measuring instrument which is coupled to a temperature measuring instrument used when measuring the temperature of cylinder exhaust gas of an internal combustion engine for a ship or measuring temperature in various industrial fields, and a protective tube manufacturing method. An objective of the present invention is to manufacture a protective tube by using a pipe to reduce manufacturing costs and reduce the weight of the protective tube, and quickly measure temperature. The protective tube for a temperature measuring instrument is used by covering a sensor bar of a temperature measuring instrument used when measuring the temperature of cylinder exhaust gas of an internal combustion engine for a ship or measuring temperature in various industrial fields. A screw unit fixed on a temperature measuring instrument is formed on the inside or outside of an upper portion, and a sensor tube is coupled to a body having a fixing screw unit formed on the outside of a lower portion. The sensor tube is made of a pipe material. The lower end is reduced in size by a swaging method to form a sealing unit, and the upper end is welded and integrated with a lower portion of the fixing screw unit formed on the outside of a lower portion of the body.

Description

온도 계측기용 보호관 및 보호관 제조방법{Protective tube for temperature instruments and Protective tube manufacturing method}Protective tube for temperature instruments and Protective tube manufacturing method

본 발명은 선박용 내연기관의 실린더 배출가스의 온도를 측정하거나, 다양한 산업분야에서 온도를 계측할 때 사용하는 온도 계측기에 결합한 온도 계측기용 보호관 및 보호관 제조방법에 관한 것으로서, 보다 구체적으로는 파이프를 이용하여 보호 튜브를 제조함으로써 제조비용을 절감함과 아울러 보호관을 경량화하고, 아울러 온도 계측도 신속하게 이루어질 수 있는 온도 계측기용 보호관 및 보호관 제조방법을 제공코자 하는 것이다.The present invention relates to a protective pipe for a temperature measuring instrument coupled to a temperature measuring device used for measuring the temperature of cylinder exhaust gas of a marine internal combustion engine or measuring temperature in various industrial fields, and a method for manufacturing the protective pipe, more specifically, using a pipe An object of the present invention is to provide a protective tube and a method for manufacturing a protective tube for a temperature measuring instrument that can reduce manufacturing cost and lighten the protective tube by manufacturing the protective tube, and also allow temperature measurement to be performed quickly.

선박용 내연기관의 실린더 배출가스의 온도를 측정하거나, 다양한 산업분야에서 온도를 계측할 때 사용하는 온도 계측기가 사용되고 있다.A temperature measuring instrument used to measure the temperature of a cylinder exhaust gas of an internal combustion engine for a ship or to measure a temperature in various industrial fields is being used.

종래 기술로는 대한민국 공개특허공보(A)10-2003-0015364호(2003.02.20.)의 선박용 다기능 디지털 온도측정기가 제안되고 있으며, 그 구성은 보호튜브의 내부에 열전센서가 삽입된 인서트로드와, 상기 인서트로드의 상단부에 삽입 설치되어 열전센서로부터 발생한 기전력을 온도값으로 표시하는 헤드부로 이루어지는 것에 있어서, 상기 인서트로드와 헤드부의 사이에는 열전센서를 둘러싸는 몸체의 외측에 방열핀 또는 방열판이 연장 형성되는 방열부가 설치되고, 상기 헤드부는 그 내부에 열전센서로부터 발생한 기전력을 2단에 걸쳐 증폭시키는 제 1 및 제 2증폭기와, 상기 증폭기로부터 전송된 신호를 디스플레이부에 표시하는 메인 PCB가 설치된 디지털 표시기로 이루어지는 것이다.As a prior art, a multi-function digital temperature measuring device for ships of Republic of Korea Patent Publication (A) 10-2003-0015364 (February 20, 2003) has been proposed, and the configuration consists of an insert rod with a thermoelectric sensor inserted into the protection tube and , In the case of being inserted into the upper end of the insert rod and comprising a head portion that displays the electromotive force generated from the thermoelectric sensor as a temperature value, between the insert rod and the head portion, a heat radiation fin or a heat sink is formed extending on the outside of the body surrounding the thermoelectric sensor A digital display in which a heat dissipation unit is installed, and the head unit includes first and second amplifiers for amplifying the electromotive force generated from the thermoelectric sensor over two stages, and a main PCB for displaying the signal transmitted from the amplifier on the display unit. will be made with

다른 예로는 대한민국 등록특허공보(B1)10-1279131호(2013.06.26.)의 온도 계측기가 제안되고 있으며, 그 구성은 온도 계측기에 있어서, 온도 센서에 의한 온도 정보를 숫자로 표시하는 온도계기판이 전면에 형성된 하우징; 상기 하우징에 고정되어 외부의 전원 및 온도 정보를 전송하기 위한 리셉터클이 부착된 몸체; 상기 리셉터클이 부착된 몸체에 고정되어 온도 센서봉을 가이드 보호하는 가이드봉; 및 상기 가이드 봉에 삽입되는 온도 센서봉과, 상기 온도 센서봉의 일단에 결합되어 상기 하우징의 후면에 체결되는 온도 센서 몸체로 이루어진 센서부를 포함하되, 상기 센서부는 상기 하우징에서 분리 체결 가능한 것이다.As another example, a temperature measuring device in Korean Patent Publication No. (B1)10-1279131 (2013.06.26.) has been proposed, and the configuration is a thermometer board that displays temperature information by a temperature sensor numerically in the temperature measuring device. a housing formed on the front side; a body fixed to the housing to which a receptacle for transmitting external power and temperature information is attached; a guide rod fixed to the body to which the receptacle is attached to guide and protect the temperature sensor rod; and a sensor unit including a temperature sensor rod inserted into the guide rod, and a temperature sensor body coupled to one end of the temperature sensor rod and fastened to the rear surface of the housing, wherein the sensor unit is detachable from the housing.

상기와 같이 구성되는 종래 기술들은 센서봉이 보호튜브 또는 가이드 봉에 삽입된 구성을 제공하여 센서봉을 안전하게 보호하여 외력에 의해 센서봉이 휘는 등의 문제점을 개선하고 있다.Conventional techniques configured as described above provide a configuration in which the sensor rod is inserted into a protective tube or guide rod to safely protect the sensor rod, thereby improving problems such as bending of the sensor rod by an external force.

그러나 종래 보호관은 내장되어 있는 센서봉으로의 열전이를 지연시켜 신속한 온도 계측을 방해하는 요인이 되고 있었는바. 업계에서는 센서봉을 안전하게 보호하면서, 열전센서가 신속하게 반응할 수 있는 기능성을 제공하도록 한 보호관이 요구되고 있었다.However, the conventional protective tube delays the heat transfer to the built-in sensor rod, thereby hindering rapid temperature measurement. In the industry, there was a need for a protective tube that safely protects the sensor rod and provides functionality for the thermoelectric sensor to respond quickly.

또한, 환봉에 구멍을 천공하고 외부를 선반 가공하여 제작하는 바, 제조비용이 상승하고, 고중량으로 취급성이 떨어지는 문제점이 있었다.In addition, there was a problem in that the manufacturing cost is increased, and the handleability is inferior due to the high weight, since a hole is drilled in the round bar and the outside is lathe-processed.

KR 1020030015364 A 2003.02.20.KR 1020030015364 A 2003.02.20. KR 101279131 B1 2013.06.26.KR 101279131 B1 2013.06.26.

이에 본 발명자는 상기한 종래 온도 계측기에 적용되고 있는 보호관의 제조 및 사용에 따른 제반 문제점을 파이프를 이용한 제조방법을 통해 해결할 수 있는 점에 착안하여 본 발명을 본 발명을 연구 개발한 것이다,Accordingly, the present inventor has researched and developed the present invention by focusing on the fact that the present invention can be solved through the manufacturing method using a pipe, the various problems associated with the manufacture and use of the protective tube applied to the conventional temperature measuring instrument.

즉, 본 발명에서는 열전센서가 내장되어 있는 센서봉을 보호하도록 사용하는 센서튜브를 파이프로 구성하되, 센서튜브의 하단부를 스웨징공법으로 축관하여 밀폐부를 형성하고, 상단부를 스웨징공법으로 확관하여 몸체의 내부에 고정한 상태에서 몸체의 하단과 센서튜브의 상부를 용접하여 상호 결합되도록 하는 제조방법을 통해서, 제조비용을 절감함과 아울러 보호관을 경량화하고, 온도 계측도 신속하게 이루어질 수 있는 온도 계측기용 보호관 및 그 제조방법을 제공함에 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.That is, in the present invention, the sensor tube used to protect the sensor rod in which the thermoelectric sensor is embedded is configured as a pipe, and the lower end of the sensor tube is swaged by a swaging method to form a sealing part, and the upper end is expanded by the swaging method. Through a manufacturing method in which the lower end of the body and the upper part of the sensor tube are welded to each other while being fixed inside the body, the manufacturing cost is reduced, the protective tube is lightened, and the temperature measurement can be performed quickly. The present invention has been completed with the technical problem of the invention in providing a protective tube and a method for manufacturing the same.

과제 해결 수단으로 본 발명에서는 선박용 내연기관의 실린더 배출가스의 온도를 측정하거나, 산업분야에서 온도를 계측할 때 사용하는 온도 계측기의 센서봉에 씌워 사용하는 온도 계측기용 보호관에 있어서; 상부에 온도 계측기에 고정하는 나사부가 내측 또는 외측에 형성되고, 하부에 외측으로 고정나사부를 형성한 몸체에 센서튜브를 결합하여 구성하되; 상기 센서튜브는 파이프 소재로 구성되며, 하단을 스웨징공법으로 축관하여 밀폐부를 형성하고, 상단을 몸체의 하부 외측에 형성한 고정나사부 아랫부분과 용접하여 일체화한 것을 특징으로 한다.In the present invention as a means to solve the problem, in the protective tube for a temperature measuring instrument used to measure the temperature of a cylinder exhaust gas of an internal combustion engine for a ship, or to cover a sensor rod of a temperature measuring instrument used when measuring the temperature in an industrial field; A screw portion for fixing the temperature measuring device to the upper portion is formed on the inside or the outside, and the sensor tube is coupled to a body having a fixing screw portion formed on the outside in the lower portion to be configured; The sensor tube is composed of a pipe material, and the lower end is swaged to form a sealing part, and the upper end is welded to the lower part of the fixing screw formed on the lower outer side of the body to be integrated.

둘째 상기 센서튜브의 상단은 몸체의 상부에 형성한 나사부에 형성된 걸림홈에 걸림되도록 스웨징공법으로 확관하여 걸림턱을 형성하여 고정한 것을 특징으로 한다.Second, the upper end of the sensor tube is expanded by a swaging method so as to be caught in a locking groove formed in a screw portion formed on the upper portion of the body, and a locking jaw is formed and fixed.

셋째 선박용 내연기관의 실린더 배출가스의 온도를 측정하거나, 산업분야에서 온도를 계측할 때 사용하는 온도 계측기의 센서봉에 씌워 사용하는 온도 계측기용 보호관을 제조하는 온도 계측기용 보호관 제조방법에 있어서; 스테인리스 환봉을 소정길이로 절단하는 몸체용 소재 준비공정과; 몸체용 소재의 중심에 결합공을 형성하고, 상부에 온도 계측기에 고정하는 나사부를 내측 또는 외측에 형성하며, 결합공의 상단에 걸림홈을 형성하고, 하부에 외측으로 고정나사부가 형성되도록 공작기계로 가공하는 몸체 가공공정과;Third, in a method for manufacturing a protective tube for a temperature measuring instrument for manufacturing a protective tube for a temperature measuring instrument used to measure the temperature of a cylinder exhaust gas of an internal combustion engine for a ship, or to cover a sensor rod of a temperature measuring instrument used when measuring temperature in an industrial field; A material preparation process for the body of cutting the stainless steel round bar to a predetermined length; A machine tool so that a coupling hole is formed in the center of the material for the body, a screw part for fixing the temperature measuring device is formed on the inside or outside, a locking groove is formed on the upper end of the coupling hole, and a fixing screw part is formed on the outside at the bottom a body processing step of processing with

스테인리스 심레스 파이프를 센서봉의 길이에 부합하도록 절단하여 센서튜브로 사용할 소재를 준비하는 센서튜브용 소재 준비공정과; 절단된 파이프 구성의 센서튜브 소재의 한쪽 단부를 스웨징공법으로 축관하여 밀폐부를 형성하는 제1스웨징공정과; 몸체의 중심에 형성된 결합공에 센서튜브 소재의 밀페되지 않은 쪽을 끼워 몸체 하부 외측에 형성한 고정나사부 아랫부분과 용접하여 몸체와 센서튜브를 일체화하는 용접공정과; 몸체에 형성된 결합공으로 끼워진 센서튜브의 상단을 스웨징공법으로 확관하여 나사부에 형성한 걸림홈에 내입 걸림되는 걸림턱을 형성하는 제2스웨징공정을 포함하는 것을 특징으로 한다.A material preparation process for a sensor tube of preparing a material to be used as a sensor tube by cutting the stainless seamless pipe to match the length of the sensor rod; a first swaging process of forming a closed part by swiping one end of the sensor tube material having a cut pipe configuration by a swaging method; A welding process of integrating the body and the sensor tube by inserting the non-sealed side of the sensor tube material into the coupling hole formed in the center of the body and welding the lower part of the fixing screw formed on the outer side of the lower body; It characterized in that it comprises a second swaging process of expanding the upper end of the sensor tube fitted through the coupling hole formed in the body by a swaging method to form a locking jaw that is internally caught in the locking groove formed in the screw portion.

본 발명에서 제공하는 온도 계측기용 보호관 및 보호관 제조방법을 사용하는 경우 열전센서가 내장되어 있는 센서봉을 감싸는 센서튜브가 이음매 없는 파이프로 구성되는 것으로 센서봉을 안전하게 보호할 수 있으며, 전체적으로 두께가 얇아 열전달이 용이하여 계측 지연이 발생하는 것을 예방하므로 온도 계측을 신속하게 제공될 수 있는 효과가 있다.When using the protective tube for a temperature measuring instrument and the method for manufacturing the protective tube provided in the present invention, the sensor tube surrounding the sensor rod having a built-in thermoelectric sensor is composed of a seamless pipe, so that the sensor rod can be safely protected, and the overall thickness is thin. Since heat transfer is easy to prevent measurement delay, there is an effect that temperature measurement can be provided quickly.

또한, 본 발명은 환봉보다 저렴한 파이프를 소재로 사용함으로 제조비용을 절감할 수 있으며, 온도 계측기의 전체 무게를 줄일 수 있어 취급성을 개선할 수 있는 효과가 있다.In addition, the present invention can reduce manufacturing costs by using a pipe cheaper than a round bar as a material, and can reduce the overall weight of the temperature measuring instrument, thereby improving handling.

또한, 센서튜브가 몸체와 1차 용접에 의해 고정된 상태에서 상단부분이 몸체의 결합공에 형성된 걸림홈에 내입 걸림되도록 스웨징공법으로 걸림턱을 형성하여 2차 고정한 것으로 견고한 고정상태를 제공할 수 있어, 진동에 의해 몸체에 용접으로 고정되어 있는 센서튜브가 분리되는 등의 염려를 일소할 수 있는 것이다.In addition, in a state in which the sensor tube is fixed with the body by primary welding, the upper part is internally caught in the locking groove formed in the body's coupling hole, and a locking jaw is formed by the swaging method to provide a solid fixing state. Therefore, it is possible to eliminate concerns such as separation of the sensor tube fixed to the body by welding due to vibration.

도 1은 본 발명에서 제공하는 온도 계측기용 보호관의 바람직한 제1실시례를 보인 사시도
도 2는 도 1의 단면도
도 3은 도 1의 사용상태도
도 4는 본 발명에서 제공하는 온도 계측기용 보호관의 바람직한 제2실시례를 보인 단면도
도 5는 도 4의 사용상태도
도 6은 본 발명에서 제공하는 온도 계측기용 보호관의 제조방법에 따른 순서 블록도
1 is a perspective view showing a first preferred embodiment of the protective tube for a temperature measuring instrument provided in the present invention;
Figure 2 is a cross-sectional view of Figure 1
Figure 3 is a view of the use state of Figure 1;
4 is a cross-sectional view showing a second preferred embodiment of the protective tube for a temperature measuring instrument provided in the present invention;
5 is a view of the use state of FIG. 4
6 is a flowchart according to the method for manufacturing a protective tube for a temperature measuring instrument provided in the present invention;

이하 본 발명에서 제공하는 온도 계측기용 보호관 및 보호관의 제조방법에 다른 바람직한 실시례를 첨부 도면에 의거하여 설명한다.Hereinafter, another preferred embodiment of the protective tube for a temperature measuring instrument and a method for manufacturing the protective tube provided in the present invention will be described based on the accompanying drawings.

도 1은 본 발명에서 제공하는 온도 계측기용 보호관의 바람직한 제1실시례를 보인 사시도를 도시한 것이고, 도 2는 도 1의 단면도, 도 3은 도 1의 사용상태도를 각각 도시한 것이다.1 is a perspective view showing a first preferred embodiment of the protective tube for a temperature measuring instrument provided in the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is a diagram of the use state of FIG. 1, respectively.

본 본 발명에서 제공하는 온도 계측기용 보호관(10)은 도 3에 도시된 바와 같이 온도 계측기(1) 헤드부(2)의 하측으로 열전센서가 내장되어 있는 센서봉(3)을 설치하며, 센서봉(3)은 헤드부(2)에 일체로 구비되어 있는 가이드봉(4)에 조립되며, 가이드봉(4)의 하측으로는 상기 센서봉(3)에 씌워지는 보호관(10)의 상단을 나사 결합한 구성을 제공하고 있다The protective tube 10 for a temperature measuring instrument provided in the present invention installs a sensor rod 3 having a built-in thermoelectric sensor under the temperature measuring instrument 1 head 2 as shown in FIG. 3 , and the sensor The rod (3) is assembled to the guide rod (4) provided integrally with the head part (2), and the upper end of the protective tube (10) covered on the sensor rod (3) is attached to the lower side of the guide rod (4). A screw-on configuration is provided.

본 발명은 상기한 구성에서 보호관(10)의 구성을 개량하여 제조원가 절감 및 경량화와 함께 외부온도가 센서봉(3) 쪽으로 신속하게 전달될 수 있도록 한 것이다.The present invention is to improve the configuration of the protective tube (10) in the above configuration so that the external temperature can be quickly transferred to the sensor rod (3) together with a reduction in manufacturing cost and weight.

본 발명에서 제공하는 보호관(10)의 구성을 살펴보면, 가이드봉(4)에 결합되어 있는 고정볼트(5)에 나사결합되는 몸체(11)와, 몸체(11)에 결합되는 센서튜브(12)를 포함하는 구성으로 이루어진다.Looking at the configuration of the protective tube 10 provided in the present invention, the body 11 screwed to the fixing bolt 5 coupled to the guide rod 4, and the sensor tube 12 coupled to the body 11. It consists of a composition comprising

상기 몸체(11)는 외형을 육각형상으로 하여 스패너 등의 공구 사용이 가능하게 하고 중앙에 결합공(11a)이 상하 관통되며, 상측으로는 가이드봉(4)에 결합되어 있는 고정볼트(5)에 나사 결합되는 나사부(11b)가 내측으로 형성되어 있으며, 하측으로는 계측장소에 설치할 수 있도록 고정나사부(11c)를 형성한다.The body 11 has a hexagonal shape to enable the use of tools such as a spanner, and a coupling hole 11a in the center penetrates up and down, and a fixing bolt 5 coupled to the guide rod 4 at the upper side. A screw portion 11b that is screw-coupled to the inside is formed, and a fixing screw portion 11c is formed on the lower side to be installed in a measurement place.

또한 몸체(11)의 중앙에 관통되어 있는 결합공(11a)의 상단에는 걸림홈(11d)이 확장된 형태로 형성된다.In addition, at the upper end of the coupling hole 11a penetrating through the center of the body 11, a locking groove 11d is formed in an expanded form.

상기 센서튜브(12)는 파이프를 소재로 구성하며, 바람직하기로는 스테인리스 구성의 이음새 없는 심레스파이프를 사용토록 한다.The sensor tube 12 is made of a pipe as a material, and preferably, a seamless seamless pipe made of stainless steel is used.

상기 센서튜브(12)는 하단을 스웨징공법으로 축관하여 밀폐부(12a)를 형성하며, 상단은 몸체(11)이 중앙에 형성한 결합공(11a)에 끼워 고정한다. 이때 센서튜브(12)의 상단은 걸림홈(11d) 내에 위치하도록 결합한 상태에서 몸체(11)의 하부 외측에 형성한 고정나사부(11c) 아랫부분과 용접하여 일체화하고, 결합공(11a) 내에 위치하는 센서튜브(12)의 상단을 스웨징공법으로 확관하여 걸림홈(11d)에 내입되도록 걸림턱(12b)을 형성한다.The sensor tube 12 has a lower end formed by a swaging method to form a sealing portion 12a, and the upper end is fixed by being fitted into a coupling hole 11a formed in the center of the body 11. At this time, the upper end of the sensor tube 12 is integrated by welding with the lower part of the fixing screw 11c formed on the lower outer side of the body 11 in a state where it is coupled to be located in the locking groove 11d, and is located in the coupling hole 11a. The upper end of the sensor tube 12 is expanded by a swaging method to form a locking jaw 12b to be inserted into the locking groove 11d.

도 4는 본 발명에서 제공하는 온도 계측기용 보호관의 바람직한 제2실시례를 보인 단면도를 도시한 것이고, 도 5는 도 4의 사용상태도를 도시한 것이다.Figure 4 is a cross-sectional view showing a second preferred embodiment of the protective tube for a temperature measuring instrument provided in the present invention, Figure 5 is a view showing the state of use of Figure 4.

이는 상기와 같이 온도 계측기용 보호관(10)을 구성함에 있어서, 몸체(11)를 온도 계측기(1)의 가이드봉(4)에 결합되어 있는 고정너트(6)와 결합하도록 구성한 것이다.This is configured to combine the body 11 with the fixing nut 6 coupled to the guide rod 4 of the temperature measuring instrument 1 in configuring the protective tube 10 for the temperature measuring instrument as described above.

즉, 몸체(11)는 중앙에 결합공(11a)이 상하 관통되며, 상측으로는 가이드봉(4)에 결합되어 있는 고정너트(6)에 나사 결합되는 나사부(11e)가 외측으로 형성되어 있으며, 하측으로는 계측장소에 설치할 수 있도록 고정나사부(11c)를 형성한 구성으로 제공되며, 센서튜브(12)는 상기와 동일한 구성으로 제공된다.That is, the body 11 has a coupling hole 11a in the center that penetrates up and down, and a screw portion 11e that is screwed to the fixing nut 6 coupled to the guide rod 4 is formed on the upper side. , the lower side is provided in a configuration in which a fixing screw 11c is formed so that it can be installed in a measurement place, and the sensor tube 12 is provided in the same configuration as above.

도 6은 본 발명에서 제공하는 온도 계측기용 보호관의 제조방법에 따른 순서블록도를 도시한 것이다.6 is a flowchart illustrating a method for manufacturing a protective tube for a temperature measuring instrument provided in the present invention.

본 발명에서 제공하는 온도 계측기용 보호관(1)의 제조방법은 도시된 바와 같이 1)몸체 제조와, 2)센서튜브 제조 및 결합에 의해 이루어진다.As shown in the figure, the manufacturing method of the protective tube 1 for a temperature measuring instrument provided in the present invention is made by 1) manufacturing a body, and 2) manufacturing and combining a sensor tube.

먼저 1)몸체 제조는, (1-1)몸체용 소재 준비공정(S10)과, (1-2)몸체 가공공정(S20)에 의해 이루어진다.First, 1) body manufacturing is made by (1-1) body material preparation step (S10) and (1-2) body processing step (S20).

(1-1)몸체용 소재 준비공정(S10)은, 외형이 육각형인 스테인리스 재질의 환봉을 소정 길이로 절단하는 공정이다.(1-1) The body material preparation step (S10) is a step of cutting a stainless steel round bar having a hexagonal outer shape to a predetermined length.

(1-2)몸체 가공공정(S20)은, 몸체용 소재 준비공정(S10)에 의해 준비된 소재를 선반등의 공작기계로 가공하는 중심에 결합공(11a)을 형성하고, 상부에 온도 계측기(100)에 고정하는 나사부(11b)를 내측 또는 외측에 형성하며, 결합공(11a)의 상단에 걸림홈(11d)을 형성하고, 하부에 외측으로 고정나사부(11c)가 형성되도록 가공하는 공정이다.(1-2) The body processing step (S20) is to form a coupling hole (11a) at the center of processing the material prepared by the body material preparation step (S10) with a machine tool such as a lathe, and a temperature measuring device ( It is a process of forming the screw portion 11b to be fixed to 100) on the inside or the outside, forming a locking groove 11d at the upper end of the coupling hole 11a, and processing the fixing screw portion 11c to the outside at the bottom. .

그리고 2)센서튜브 제조 및 결합은, (2-1)센서튜브용 소재 준비공정(S30)과, (2-2)제1스웨징공정(S40)과, (2-3)용접공정(S50)과, (2-4)제2스웨징공정(S60)에 의해 이루어진다.And 2) sensor tube manufacturing and bonding, (2-1) sensor tube material preparation process (S30), (2-2) first swaging process (S40), (2-3) welding process (S50) ) and (2-4) a second swaging process (S60).

(2-1)센서튜브용 소재 준비공정(S30)은, 이음매 없는 스테인리스 파이프를 센서봉(3)의 길이에 부합하도록 절단하여 센서튜브(12)로 사용할 소재를 준비하는 공정이다.(2-1) The material preparation process for sensor tube (S30) is a process of preparing a material to be used as the sensor tube 12 by cutting a seamless stainless pipe to match the length of the sensor rod 3 .

(2-2)제1스웨징공정(S40)은, 절단된 파이프 구성의 센서튜브(12)의 한쪽 단부를 스웨징공법으로 축관하여 밀폐부(12a)를 형성하는 공정이다.(2-2) The first swaging step (S40) is a step of forming the sealing portion 12a by swiping one end of the sensor tube 12 of the cut pipe configuration by a swaging method.

(2-3)용접공정(S50)은, 몸체(11)의 중심에 형성된 결합공(11a)에 센서튜브(12)의 밀페되지 않은 쪽을 끼워 몸체(11) 하부 외측에 형성한 고정나사부(11c) 아랫부분과 용접하여 몸체(11)와 센서튜브(12)를 일체화하는 공정이다.(2-3) In the welding process (S50), the non-sealed side of the sensor tube 12 is inserted into the coupling hole 11a formed in the center of the body 11, and the fixing screw part formed on the lower outer side of the body 11 ( 11c) It is a process of integrating the body 11 and the sensor tube 12 by welding with the lower part.

(2-4)제2스웨징공정(S60)은, 몸체(11)에 형성된 결합공(11a)으로 끼워진 센서튜브(12)의 상단을 스웨징공법으로 확관하여 나사부(11b)에 형성한 걸림홈(11d)에 내입 걸림되는 걸림턱을 형성하는 공정이다.(2-4) In the second swaging process (S60), the upper end of the sensor tube 12 fitted with the coupling hole 11a formed in the body 11 is expanded by the swaging method, and the engagement formed in the threaded portion 11b It is a process of forming a locking jaw to be caught in the groove (11d).

이상과 같은 본 발명의 온도 계측기용 보호관(1) 및 보호관 제조방법에 의하면 환봉보다 저렴한 파이프를 소재로 사용함으로 제조비용을 절감할 수 있으며, 온도 계측기(100)의 전체 무게를 줄일 수 있어 취급성을 개선할 수 있으며, 센서튜브(12)가 몸체(11)와 1차 용접에 의해 고정된 상태에서 상단부분이 몸체(11)의 결합공(11a)에 형성된 걸림홈(11d)에 내입 걸림되도록 스웨징공법으로 걸림턱(12b)을 형성하여 2차 고정한 것으로 견고한 고정상태를 제공할 수 있어, 진동에 의해 몸체(11)에 용접으로 고정되어 있는 센서튜브(12)가 분리되는 염려없는 내구성이 우수한 제품을 제공할 수 있는 것이다.According to the protective tube (1) and the protective tube manufacturing method for the temperature measuring instrument of the present invention as described above, it is possible to reduce the manufacturing cost by using a pipe cheaper than a round bar as a material, and it is possible to reduce the overall weight of the temperature measuring instrument (100), so handling is possible can be improved, and in a state in which the sensor tube 12 is fixed with the body 11 by primary welding, the upper end is caught in the engaging groove 11d formed in the coupling hole 11a of the body 11. It is possible to provide a strong fixed state by forming the locking jaw 12b by the swaging method and fixing it secondarily, so that there is no worry that the sensor tube 12 fixed to the body 11 by welding is separated by vibration. It can provide excellent products.

본 발명의 상세한 설명에서는 구체적인 실시례에 관해 설명하고 있으나, 본 발명의 범주에서 벗어나지 않는 한도 내에서 다양한 변형이 가능함은 물론이다. 그러므로 본 발명의 보호 범위는 설명된 실시례에 국한되어 정해져서는 안 되며, 후술하는 청구범위 뿐만 아니라 균등한 것들에 의해 정해져야 한다.In the detailed description of the present invention, although specific embodiments are described, various modifications are possible without departing from the scope of the present invention. Therefore, the protection scope of the present invention should not be limited to the described embodiments, and should be defined by the following claims as well as equivalents.

1:온도 계측기 2:헤드부
3:센서봉 4:가이드봉
5:고정볼트 6:고정너트
10:(온도 계측기용) 보호관 11:몸체
11a:결합공 11b,11e:나사부
11c:고정나사부 11d:걸림홈
12:센서튜브 12a:밀폐부
12b:걸림턱
S10:몸체용 소재 준비공정
S20:몸체 가공공정
S30:센서튜브용 소재 준비공정
S40:제1스웨징공정
S50:용접공정
S60:제2스웨징공정
1: Temperature measuring instrument 2: Head part
3: Sensor rod 4: Guide rod
5: Fixing bolt 6: Fixing nut
10: (for temperature measuring instrument) Protection tube 11: Body
11a: coupling hole 11b, 11e: screw part
11c: fixing screw 11d: locking groove
12: sensor tube 12a: sealing part
12b: jamming jaw
S10: Body material preparation process
S20: body processing process
S30: Material preparation process for sensor tube
S40: first swaging process
S50: Welding process
S60: Second Swaging Process

Claims (3)

선박용 내연기관의 실린더 배출가스의 온도를 측정하거나, 산업분야에서 온도를 계측할 때 사용하는 온도 계측기(100)의 센서봉(3)에 씌워 사용하는 온도 계측기용 보호관(1)에 있어서;
상부에 온도 계측기(100)에 고정하는 나사부(11b)(11e)가 내측 또는 외측에 형성되고, 하부에 외측으로 고정나사부(11c)를 형성한 몸체(11)에 센서튜브(12)를 결합하여 구성하되;
상기 센서튜브(12)는 파이프 소재로 구성되며, 하단을 스웨징공법으로 축관하여 밀폐부(12a)를 형성하고, 상단을 몸체(11)의 하부 외측에 형성한 고정나사부(11c) 아랫부분과 용접하여 일체화한 것을 특징으로 하는 온도 계측기용 보호관.
In the protective tube (1) for a temperature measuring instrument used to measure the temperature of the cylinder exhaust gas of an internal combustion engine for a ship, or to cover the sensor rod (3) of the temperature measuring instrument 100 used when measuring the temperature in the industrial field;
The sensor tube 12 is coupled to the body 11 having screw parts 11b and 11e fixed to the temperature measuring instrument 100 on the upper side or on the outside, and the fixing screw part 11c is formed on the lower side to the outside. constitute;
The sensor tube 12 is made of a pipe material, the lower end is swaged by a swaging method to form a sealing portion 12a, and the upper end is formed on the lower outer side of the body 11 by a fixing screw portion 11c, the lower portion and A protective tube for a temperature measuring instrument, characterized in that it is integrated by welding.
청구항 1에 있어서;
상기 센서튜브(12)의 상단은 몸체(11)의 상부에 형성한 나사부(11b)에 형성된 걸림홈(11d)에 걸림되도록 스웨징공법으로 확관하여 걸림턱(12b)을 형성하여 고정한 것을 특징으로 하는 온도 계측기용 보호관.
The method of claim 1 ;
The upper end of the sensor tube 12 is expanded by a swaging method so as to be caught in the locking groove 11d formed in the screw portion 11b formed on the upper part of the body 11, and the locking jaw 12b is formed and fixed. protective tube for temperature measuring instruments.
선박용 내연기관의 실린더 배출가스의 온도를 측정하거나, 산업분야에서 온도를 계측할 때 사용하는 온도 계측기(100)의 센서봉(3)에 씌워 사용하는 온도 계측기용 보호관(1)을 제조하는 온도 계측기용 보호관(1) 제조방법에 있어서;
스테인리스 환봉을 소정길이로 절단하는 몸체용 소재 준비공정(S10)과;
몸체(11)용 소재의 중심에 결합공(11a)을 형성하고, 상부에 온도 계측기(100)에 고정하는 나사부(11b)를 내측 또는 외측에 형성하며, 결합공(11a)의 상단에 걸림홈(11d)을 형성하고, 하부에 외측으로 고정나사부(11c)가 형성되도록 공작기계로 가공하는 몸체 가공공정(S20)과;
스테인리스 심레스 파이프를 센서봉(3)의 길이에 부합하도록 절단하여 센서튜브(12)로 사용할 소재를 준비하는 센서튜브용 소재 준비공정(S30)과;
절단된 파이프 구성의 센서튜브(12) 소재의 한쪽 단부를 스웨징공법으로 축관하여 밀폐부(12a)를 형성하는 제1스웨징공정(S40)과;
몸체(11)의 중심에 형성된 결합공(11a)에 센서튜브(12) 소재의 밀폐되지 않은 쪽을 끼워 몸체(11) 하부 외측에 형성한 고정나사부(11c) 아랫부분과 용접하여 몸체(11)와 센서튜브(12)를 일체화 하는 용접공정(S50)과;
몸체(11)에 형성된 결합공(11a)으로 끼워진 센서튜브(12)의 상단을 스웨징공법으로 확관하여 나사부(11b)에 형성한 걸림홈(11d)에 내입 걸림되는 걸림턱(12f)을 형성하는 제2스웨징공정(S60)을 포함하는 것을 특징으로 하는 온도 계측기용 보호관 제조방법.
A temperature measuring instrument for manufacturing a protective tube (1) for a temperature measuring instrument used to measure the temperature of the cylinder exhaust gas of an internal combustion engine for a ship or to be used by covering the sensor rod (3) of the temperature measuring instrument 100 used when measuring the temperature in the industrial field In the manufacturing method of the protective tube (1) for;
A material preparation process (S10) for the body of cutting the stainless steel round bar to a predetermined length and;
A coupling hole (11a) is formed in the center of the material for the body (11), a screw portion (11b) for fixing to the temperature measuring instrument (100) is formed on the inside or outside at the upper portion, and a locking groove is formed at the upper end of the coupling hole (11a). A body processing step (S20) of forming (11d) and processing with a machine tool so that the fixing screw portion (11c) is formed on the outside at the lower portion;
A material preparation process for sensor tube (S30) of cutting the stainless seamless pipe to match the length of the sensor rod (3) to prepare a material to be used as the sensor tube (12);
A first swaging process (S40) of forming a sealing part (12a) by swiping one end of the sensor tube (12) material of the cut pipe configuration by a swaging method;
Insert the non-sealed side of the sensor tube 12 material into the coupling hole 11a formed in the center of the body 11 and weld the lower part of the fixing screw 11c formed on the lower side of the body 11 to the body 11 And a welding process (S50) of integrating the sensor tube (12) and;
The upper end of the sensor tube 12 fitted with the coupling hole 11a formed in the body 11 is expanded by a swaging method to form a locking jaw 12f that is caught in the locking groove 11d formed in the screw portion 11b. A method of manufacturing a protective tube for a temperature measuring instrument, characterized in that it comprises a second swaging step (S60).
KR1020200004044A 2020-01-13 2020-01-13 Protective tube for temperature instruments and Protective tube manufacturing method KR20210090834A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030015364A (en) 2003-02-06 2003-02-20 (주) 해리아나 Digital thermometer with multi-function for a ship
KR101279131B1 (en) 2011-08-02 2013-06-26 금양산업(주) A thermometer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030015364A (en) 2003-02-06 2003-02-20 (주) 해리아나 Digital thermometer with multi-function for a ship
KR101279131B1 (en) 2011-08-02 2013-06-26 금양산업(주) A thermometer

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