KR20100044366A - Water pump - Google Patents

Water pump Download PDF

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Publication number
KR20100044366A
KR20100044366A KR1020080103471A KR20080103471A KR20100044366A KR 20100044366 A KR20100044366 A KR 20100044366A KR 1020080103471 A KR1020080103471 A KR 1020080103471A KR 20080103471 A KR20080103471 A KR 20080103471A KR 20100044366 A KR20100044366 A KR 20100044366A
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KR
South Korea
Prior art keywords
water pump
pulley
bearing
bracat
rotating shaft
Prior art date
Application number
KR1020080103471A
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Korean (ko)
Inventor
황순준
김명래
Original Assignee
주식회사 나진
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Priority to KR1020080103471A priority Critical patent/KR20100044366A/en
Publication of KR20100044366A publication Critical patent/KR20100044366A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid pumps
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: A water pump is provided to reduce the manufacturing costs and the weight of the water pump by changing the material of a pump housing from the aluminum into steel. CONSTITUTION: A water pump comprises a pulley(10), a bracket(30), a first and a second bearing(50,60). A rotary shaft(14) rotating an impeller(40) is integrated with the pulley. The bracket has a through-hole into which the rotary shaft is inserted. The through-hole is formed at the end of the central part which is protruded downward. The first bearing is installed between the central outer circumference and the pulley of the bracket. The second bearing is installed between the lower surface of the bracket and the upper surface of the pulley. The second bearing is prevented from being inclined in the rotation of the pulley.

Description

워터펌프{WATER PUMP}Water Pump {WATER PUMP}

본 발명은 워터펌프에 관한 것으로, 보다 상세하게는 냉각팬을 통해 냉각된 냉각수를 엔진의 실린더블록(cylinder block)과 실린더헤드(cylinder head)의 워터자캣(water jacket)으로 공급하는 워터펌프(water pump)의 구조에 관한 것이다.The present invention relates to a water pump, and more particularly, a water pump for supplying coolant cooled through a cooling fan to a water jacket of a cylinder block and a cylinder head of an engine. pump structure.

일반적으로 운전중인 자동차의 엔진에서 연소되는 연소가스의 최고 온도는 섭씨 2000도(℃) 전후까지 상승하게 되는데, 이러한 연소열은 엔진 내외부에 설치된 실린더블록(cylinder block)과 실린더헤드(cylinder head)의 워터자캣(water jacket), 피스톤 등에 전달되어 엔진 및 엔진룸의 온도를 높게 상승시키게 된다.In general, the maximum temperature of the combustion gas that is burned in the engine of a driving car rises up to around 2000 degrees Celsius (℃), and the heat of combustion is the water of the cylinder block and the cylinder head installed inside and outside the engine. It is delivered to water jackets, pistons, etc., which raises the temperature of the engine and engine room.

이에 따라, 대부분의 자동차에서는 운전중인 엔진을 냉각하여 엔진이 정상적으로 운전될 수 있도록 엔진 온도를 일정하게 유지시키는 냉각장치(cooling system)가 장착되고 있다.Accordingly, most automobiles are equipped with a cooling system for cooling the engine in operation to maintain a constant engine temperature so that the engine can operate normally.

상기 냉각장치는 냉각방식에 따라 냉각수를 이용하는 수냉식과 공기를 이용하는 공냉식으로 구분되고, 대부분의 자동차에서는 냉각수를 순환시켜 엔진의 연소 열을 강제적으로 낮추는 수냉식을 체택하여 사용하고 있다. The cooling apparatus is classified into a water cooling type using a cooling water and an air cooling type using air according to a cooling method, and in most automobiles, a water cooling type that uses a water cooling type that circulates the cooling water to forcibly lower the combustion heat of the engine is used.

한편, 종래의 수냉식 냉각장치는, 운전중인 엔진의 실린더, 실린더헤드, 피스톤, 실린더벽 등의 고온 부분에 워터펌프를 통해 냉각수를 공급하고, 열을 흡수한 냉각수를 라디에터에서 냉각하여 다시 워터펌프로 펌핑하는 강제순환 냉각방식으로 되어 있다.On the other hand, in the conventional water-cooled cooling device, the cooling water is supplied to a high temperature part such as a cylinder, a cylinder head, a piston, and a cylinder wall of an engine in operation through a water pump, and the cooling water absorbing heat is cooled by a radiator, and then, the water pump is used again as a water pump. It is a forced circulation cooling method of pumping.

또한, 냉각팬을 통해 냉각된 냉각수를 운전중인 엔진으로 공급하는 상기 워터펌프는 도 1에 도시된 바와 같이, 펌프하우징(3)의 내부에 설치된 회전축(6)의 상단부에 임펠러(4)가 설치된 것으로, 임펠러(4)가 회전하게 되면 자동자의 엔진부(100)로부터 펌프하우징(3) 쪽으로 유입되는 냉각수가 원심력에 의해 외측으로 빠져나가 운전중인 엔진부(100)의 각 부분으로 순환된다.In addition, the water pump for supplying the cooling water cooled through the cooling fan to the engine in operation, as shown in Figure 1, the impeller (4) is installed on the upper end of the rotating shaft (6) installed inside the pump housing (3) In this case, when the impeller 4 rotates, the coolant flowing into the pump housing 3 from the engine unit 100 of the automobile is circulated outward by the centrifugal force and circulated to each part of the engine unit 100 in operation.

상기 회전축(6)의 외주와 상기 펌프하우징(3)의 내주 사이에 상기 풀리(1)가 회전되도록 지지하는 베어링(5)이 설치되고, 상기 회전축(6)의 상단부에 설치되는 임펠러(4)는 상기 회전축(6)의 하단부에 설치된 풀리(1)가 엔진부(100)의 크랭크샤프트와 벨트(110)로 연결되어 엔진의 회전수와 동일한 회전수로 회전하게 된다.Between the outer circumference of the rotating shaft 6 and the inner circumference of the pump housing 3, a bearing 5 for supporting the pulley 1 to be rotated is installed, and an impeller 4 installed at an upper end of the rotating shaft 6. The pulley 1 installed at the lower end of the rotation shaft 6 is connected to the crankshaft of the engine unit 100 and the belt 110 to rotate at the same rotational speed as the engine rotational speed.

종래의 워터펌프를 조립하는 과정은, 상기 임펠러(4)가 회전축(6)에 장착되어 원할하게 회전될 수 있도록 상기 베어링(5)이 회전축(6)에 조립된 회전축(6) 일체를 별도로 구입하여 상기 펌프하우징(3)에 장착하고, 상기 브라캣(2)과 풀리(1)를 장착한 후, 최종적으로 임펠러(4)를 장착하는 공정을 통해 워터펌프를 조립하게 된다.In the process of assembling a conventional water pump, the impeller 4 is mounted on the rotary shaft 6 so that the bearing 5 is integrally assembled with the rotary shaft 6 so as to rotate smoothly. By mounting the pump housing (3), the bracat (2) and the pulley (1), and finally assembled the water pump through the process of mounting the impeller (4).

따라서, 종래의 워터펌프는 부품 종류가 많고, 각각의 부품을 조립하는 다양 한 공정이 필요하며, 특히 알루미늄 다이케스팅으로 되어 있어 후가공이 많아 제조원가가 높아지고, 무게가 많이 나가며 부피가 커서 자동차 엔진부의 공간을 많이 차지하는 단점이 있었다.Therefore, the conventional water pump requires a large number of parts, and various processes for assembling each part, and in particular, it is made of aluminum die-casting, which increases manufacturing cost due to high post-processing, high weight, and large volume. There were a lot of disadvantages.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 장착된 것으로서, 워터펌프 내부에 구성되는 임펠러를 회전시키는 회전축과 풀리를 기계가공 방식을 통해 일체로 제조하여 워터펌프의 조립공정을 단순화시킬 수 있는 워터펌프를 제공하는데 그 목적이 있다.Therefore, the present invention is equipped to solve the above problems, by integrally manufacturing the rotary shaft and the pulley for rotating the impeller configured in the water pump through a machining method can simplify the assembly process of the water pump The purpose is to provide a water pump.

또한, 본 발명의 다른 목적은 종래의 펌프하우징의 재질을 알루미늄에서 철재로 변경하고, 복잡한 구조를 간단한 브라캣 형태로 1차 주물가공과 2차 CNC 선반 가공으로 제조하여 워터펌프의 중량을 줄이고, 조립공정을 단축시켜 원가를 절감할 수 있는 워터펌프를 제공하는 것이다.In addition, another object of the present invention is to change the material of the conventional pump housing from aluminum to steel, to reduce the weight of the water pump by manufacturing the complex structure of the primary casting process and the secondary CNC lathe processing in a simple Bracat form, It is to provide a water pump that can reduce the cost by shortening the assembly process.

또한, 본 발명의 다른 목적은 워터펌프를 소형화하여 자동차 엔진룸의 필요 공간을 줄일 수 있는 워터펌프를 제공하는 것이다.In addition, another object of the present invention is to provide a water pump that can reduce the required space of the engine room by miniaturizing the water pump.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 워터펌프는, 임펠러를 회전시키는 회전축이 일체로 형성된 풀리와, 상기 회전축이 삽입되는 통공이 하향 돌출된 중앙부 끝단에 형성된 브라캣, 상기 브라캣의 중앙부 외주면과 상기 풀리 사이에 설치되는 제1 베어링 및 상기 브라캣의 하부면과 상기 풀리의 상부면 사이에 설치되고, 상기 풀리가 회전시 한쪽으로 기울어지는 것을 방지하는 제2 베어링을 포함한다.Water pump according to the present invention for achieving the above object, the pulley and the rotating shaft for rotating the impeller integrally, the bracat formed at the end of the central portion protruding downward through the insertion hole, the central portion of the bracat And a first bearing installed between an outer circumferential surface and the pulley, and a second bearing installed between a lower surface of the bracat and an upper surface of the pulley and preventing the pulley from tilting to one side when rotating.

본 발명의 상기 풀리의 중앙부에는 상기 회전축이 스템핑 방식으로 상향 돌출되도록 제조되는 것을 특징으로 한다.The central portion of the pulley of the present invention is characterized in that the rotating shaft is manufactured to protrude upward in a stamping manner.

본 발명의 상기 회전축의 외주면에는 냉각수를 밀폐하는 실링부재가 장착되고, 상기 실링부재의 상측에 고정부재가 장착되며, 상기 고정부재가 장착되는 상기 회전축의 외주면에는 고정홈이 형성된 것을 특징으로 한다.The outer peripheral surface of the rotary shaft of the present invention is equipped with a sealing member for sealing the cooling water, a fixing member is mounted on the upper side of the sealing member, characterized in that the fixing groove is formed on the outer peripheral surface of the rotating shaft on which the fixing member is mounted.

본 발명의 상기 브라캣은 CNC선반 가공으로 제조되며, 자동차의 엔진부에 장착하기 위한 다수개의 장착공이 형성되고, 상기 브라캣과 상기 엔진부 사이에는 가스캣이 설치되는 것을 특징으로 한다.The bracat of the present invention is manufactured by CNC lathe processing, and a plurality of mounting holes are formed for mounting to an engine part of a vehicle, and a gascat is installed between the bracat and the engine part.

본 발명의 상기 제2 베어링은 CNC선반 가공으로 제조되며, 하중이 축 방향으로 작용하는 스러스트 베어링(Thrust Bearing)인 것을 특징으로 한다.The second bearing of the present invention is manufactured by CNC lathe processing, and is characterized in that a thrust bearing having a load acting in the axial direction.

상술한 바와 같이 본 발명은 워터펌프 내부에서 임펠러를 회전시키는 회전축과 풀리를 기계가공 방식을 통해 일체로 제조함으로써, 워터펌프의 조립공정을 단순화시켜 조립원가를 줄일 수 있는 효과가 있다.As described above, the present invention has an effect of reducing the assembly cost by simplifying the assembly process of the water pump by integrally manufacturing the rotating shaft and the pulley for rotating the impeller inside the water pump through a machining method.

또한, 본 발명은 종래의 펌프하우징의 재질을 알루미늄에서 철재로 변경하고, 복잡한 구조의 펌프하우징을 간단한 구조의 브라캣 형태로 1차 주물가공과 2차 CNC 선반 가공으로 제조함으로써, 워터펌프의 중량을 줄이고 제조원가를 줄일 수 있는 효과가 있다.In addition, the present invention by changing the material of the conventional pump housing from aluminum to steel, and by manufacturing the pump housing of the complex structure in the form of Bracat of simple structure by the primary casting process and the secondary CNC lathe machining, the weight of the water pump It can reduce the manufacturing cost.

또한, 본 발명은 워터펌프를 소형화함으로써, 자동차 엔진룸에서 워터펌프가 차지하는 필요 공간을 줄일 수 있는 효과가 있다.In addition, the present invention has the effect of reducing the required space occupied by the water pump in the vehicle engine room by miniaturizing the water pump.

이하, 첨부된 도면을 참조하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있는 바람직한 일실시예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings that can be easily implemented by those skilled in the art.

도 2는 본 발명에 따른 워터펌프의 단면 형상을 나타낸 도면이고, 도 3은 본 발명에 따른 워터펌프의 분해된 상태를 나타낸 도면이다.2 is a view showing a cross-sectional shape of the water pump according to the present invention, Figure 3 is a view showing an exploded state of the water pump according to the present invention.

먼저, 본 발명에 따른 워터펌프는, 운전중인 자동차의 엔진 온도를 일정하게 유지시키는 냉각장치(cooling system)로서, 도시되지 않은 냉각팬을 통해 냉각된 냉각수를 엔진의 실린더블록(cylinder block)과 실린더헤드(cylinder head)의 워터자캣(water jacket) 등으로 공급하는 것으로, 도 2와 도 3에 도시된 바와 같이 풀리(10)와, 가스캣(20), 브라캣(30), 임펠러(40), 제1 베어링(50), 제2 베어링(60)를 포함 구성된다.First, the water pump according to the present invention is a cooling system for maintaining a constant engine temperature of a driving car, and a coolant cooled through a cooling fan (not shown) is a cylinder block and a cylinder of an engine. It is supplied to a water jacket (cylinder head), etc., as shown in Figs. 2 and 3, the pulley 10, the gascat 20, Bracat 30, impeller 40 And a first bearing 50 and a second bearing 60.

상기 풀리(10)의 외측면에는 벨트연결부(12)벨트연결부(12) 엔진부의 크랭크샤프트(도시되지 않음)와 벨트(110)를 통해 연결되어 회전된다.The outer surface of the pulley 10 is connected to the belt connecting portion 12, the belt connecting portion 12 through the crankshaft (not shown) and the belt 110 and the engine 110 is rotated.

상기 풀리(10)의 중앙부에는 상기 브라캣(30)과 임펠러(40)가 장착되는 회전축(60)이 스템핑 방식으로 일정길이 상향 돌출되도록 제조된다. 여기서, 상기 풀리(10)는 프레스 스탬핑 기법을 활용하여, 평면 철판에서부터 중심부의 회전축(14)을 예를 들어, 50mm 이상 뽑아올리는 기술로, 동심도와 직각도가 유지되어야만 회 전축(14)의 상단부에 장착되는 상기 임펠러(40)의 회전이 원할할 수 있게 된다.The central shaft of the pulley 10 is manufactured such that the rotation shaft 60 on which the bracat 30 and the impeller 40 are mounted protrudes a predetermined length upward in a stamping manner. Here, the pulley 10 is a technique for pulling up the rotating shaft 14 of the central portion from the flat iron plate, for example, 50 mm or more by using a press stamping technique, the concentricity and the right angle must be maintained only the upper end of the rotating shaft 14 Rotation of the impeller 40 mounted to it may be desired.

상기 브라캣(30)은 예를 들어, 철재를 주물에 부어 CNC선반 가공 기법으로 제조되는 것으로, 하향 돌출된 중앙부 끝단에 상기 회전축(14)이 삽입되는 통공(32)이 형성되고, 하향 돌출된 중앙부의 외주면에는 제1 베어링(50)이 창착된다. For example, the Bracat 30 is manufactured by CNC lathe processing by pouring steel into a casting, and a through hole 32 into which the rotation shaft 14 is inserted is formed at the end of the downwardly protruding center, and protrudes downward. The first bearing 50 is mounted on the outer circumferential surface of the center portion.

상기 제1 베어링(50)은 볼베어링(Ball Bearing)으로, 상기 브라캣(30)의 하향 돌출된 중앙부와 상기 풀리(10)의 회전축(14) 사이에 설치되어, 상기 풀리(10)의 회전축(14)에 장착된 상기 임펠러(40)가 원할하게 회전 가능하도록 한다.The first bearing 50 is a ball bearing, and is installed between the downwardly protruding center portion of the bracat 30 and the rotation shaft 14 of the pulley 10 and the rotation shaft of the pulley 10 ( The impeller 40 mounted on the 14 allows for smooth rotation.

상기 풀리(10)의 상부면과 상기 브라캣(30)의 하부면 사이에는 상기 풀리(10)가 회전시 흔들림으로 기울어지는 것을 방지하기 위한 제2 베어링(60)이 장착된다. 여기서, 상기 제2 베어링(60)은 주물과 CNC선반 가공으로 제조되는 스러스트 베어링(Thrust Bearing)으로 예를 들어, 하중이 축 방향으로 작용하도록 하여 상기 풀리(10)가 회전시 흔들림을 극소화시키게 된다.A second bearing 60 is mounted between the upper surface of the pulley 10 and the lower surface of the bracat 30 to prevent the pulley 10 from being inclined due to shaking during rotation. Here, the second bearing 60 is a thrust bearing manufactured by casting and CNC lathe machining, for example, the load acts in the axial direction to minimize the shaking when the pulley 10 rotates. .

상기 풀리(10)의 상부면과 상기 브라캣(30)의 하부면에는 상기 제2 베어링(60)을 장착하기 위한 장착홈(34)이 형성된다.Mounting grooves 34 for mounting the second bearing 60 are formed on the upper surface of the pulley 10 and the lower surface of the bracat 30.

상기 풀리(10)에 일체로 형성된 회전축(14)의 외주면에는, 엔진부(100) 내의 냉각수를 밀폐하기 위한 다양한 형태의 실링부재(70)가 장착되고, 상기 회전축(14)의 외주면에는 상기 실링부재(70)를 고정하기 위한 고정홈(16)이 형성되며, 상기 회전축(14)의 고정홈(16)에는 고정부재(80)가 끼움 고정된다. 여기서, 상기 고정부재(80)는 다양한 형태의 스넵 링(Snap ring)으로, 상기 실링부재(70)를 고정시키게 된다.The outer circumferential surface of the rotary shaft 14 formed integrally with the pulley 10 is equipped with various types of sealing members 70 for sealing the cooling water in the engine unit 100, and the sealing on the outer circumferential surface of the rotary shaft 14. A fixing groove 16 for fixing the member 70 is formed, and the fixing member 80 is fitted into the fixing groove 16 of the rotating shaft 14. Here, the fixing member 80 is a snap ring of various forms, and fixes the sealing member 70.

상기 브라캣(30)에는 엔진부(100)에 브라캣(30)을 장착하기 위한 다수개의 장착공(도시되지 않음)이 형성되고, 상기 엔진부(100)와 브라캣(30) 사이에는 가스캣(20)이 삽입된다.The brackets 30 are provided with a plurality of mounting holes (not shown) for mounting the brackets 30 to the engine unit 100, and a gas is provided between the engine unit 100 and the brackets 30. Cat 20 is inserted.

상술한 바와 같이 본 발명은 워터펌프 내부에서 임펠러를 회전시키는 회전축과 풀리를 기계가공 방식을 통해 일체로 제조함으로써, 워터펌프의 조립공정을 단순화시켜 조립원가를 줄일 수 있게 된다.As described above, according to the present invention, by integrally manufacturing the rotating shaft and the pulley for rotating the impeller inside the water pump through a machining method, it is possible to simplify the assembly process of the water pump to reduce the assembly cost.

또한, 본 발명은 종래의 펌프하우징의 재질을 알루미늄에서 철재로 변경하고, 복잡한 구조의 펌프하우징을 간단한 구조의 브라캣 형태로 1차 주물가공과 2차 CNC 선반 가공으로 제조함으로써, 워터펌프의 중량을 줄이고 제조원가를 줄일 수 있게 된다.In addition, the present invention by changing the material of the conventional pump housing from aluminum to steel, and by manufacturing the pump housing of the complex structure in the form of Bracat of simple structure by the primary casting process and the secondary CNC lathe machining, the weight of the water pump It can reduce the manufacturing cost.

또한, 본 발명은 워터펌프를 소형화함으로써, 자동차 엔진룸에서 워터펌프가 차지하는 필요 공간을 줄일 수 있는 효과가 있게 된다.In addition, the present invention has the effect of reducing the required space occupied by the water pump in the vehicle engine room by miniaturizing the water pump.

도 1은 종래의 워터펌프의 단면 형상을 나타낸 도면.1 is a view showing a cross-sectional shape of a conventional water pump.

도 2는 본 발명에 따른 워터펌프의 단면 형상을 나타낸 도면.2 is a view showing a cross-sectional shape of the water pump according to the present invention.

도 3은 본 발명에 따른 워터펌프의 분해된 상태를 나타낸 도면.3 is a view showing an exploded state of the water pump according to the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 풀리 2 : 브라캣1: pulley 2: Bracat

3 : 펌프하우징 4 : 임펠러3: pump housing 4: impeller

5 : 베어링 6 : 회전축5: bearing 6: rotating shaft

10 : 풀리 12 : 벨트연결부10 pulley 12 belt connection

14 : 회전축 16 : 고정홈14: rotating shaft 16: fixed groove

20 : 가스캣 30 : 브라캣20: Gascat 30: Bracat

32 : 통공 34 : 장착홈32: through hole 34: mounting groove

40 : 임펠러40 impeller

50 : 제1 베어링 60 : 제2 베어링50: first bearing 60: second bearing

70 : 실링부재 80 : 고정부재 70 sealing member 80 fixing member

100 : 엔진부 110 : 벨트100: engine 110: belt

Claims (5)

워터펌프에 있어서,In the water pump, 임펠러를 회전시키는 회전축이 일체로 형성된 풀리와;A pulley in which a rotating shaft for rotating the impeller is integrally formed; 상기 회전축이 삽입되는 통공이 하향 돌출된 중앙부 끝단에 형성된 브라캣;Bracat formed in the central end of the through-hole protruding downwardly the rotation shaft is inserted; 상기 브라캣의 중앙부 외주면과 상기 풀리 사이에 설치되는 제1 베어링; 및A first bearing installed between the outer peripheral surface of the center portion of the bracat and the pulley; And 상기 브라캣의 하부면과 상기 풀리의 상부면 사이에 설치되고, 상기 풀리가 회전시 한쪽으로 기울어지는 것을 방지하는 제2 베어링을 포함하는 워터펌프.The water pump is installed between the lower surface of the bracat and the upper surface of the pulley, comprising a second bearing to prevent the pulley from tilting to one side when rotating. 제 1 항에 있어서,The method of claim 1, 상기 풀리의 중앙부에는 상기 회전축이 스템핑 방식으로 상향 돌출되도록 제조되는 것을 특징으로 하는 워터펌프.The central portion of the pulley is a water pump, characterized in that the rotating shaft is manufactured to protrude upward in a stamping manner. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 회전축의 외주면에는 냉각수를 밀폐하는 실링부재가 장착되고, The outer circumferential surface of the rotating shaft is mounted with a sealing member for sealing the cooling water, 상기 실링부재의 상측에 고정부재가 장착되며, A fixing member is mounted on the upper side of the sealing member, 상기 고정부재가 장착되는 상기 회전축의 외주면에는 고정홈이 형성된 것을 특징으로 하는 워터펌프.Water pump, characterized in that the fixing groove is formed on the outer circumferential surface of the rotating shaft on which the fixing member is mounted. 제 3 항에 있어서,The method of claim 3, wherein 상기 브라캣은 CNC선반 가공으로 제조되며, 자동차의 엔진부에 장착하기 위한 다수개의 장착공이 형성되고, The Bracat is manufactured by CNC lathe processing, a plurality of mounting holes are formed for mounting to the engine of the vehicle, 상기 브라캣과 상기 엔진부 사이에는 가스캣이 설치되는 것을 특징으로 하는 워터펌프.Water pump, characterized in that the gas cat is installed between the bra and the engine unit. 제 4 항에 있어서,The method of claim 4, wherein 상기 제2 베어링은 CNC선반 가공으로 제조되며, 하중이 축 방향으로 작용하는 스러스트 베어링(Thrust Bearing)인 것을 특징으로 하는 워터펌프.The second bearing is manufactured by CNC lathe processing, and the water pump, characterized in that the load acts in the axial direction (Thrust Bearing).
KR1020080103471A 2008-10-22 2008-10-22 Water pump KR20100044366A (en)

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