KR20040037435A - Hybrid pulley and manufacturing method - Google Patents

Hybrid pulley and manufacturing method Download PDF

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Publication number
KR20040037435A
KR20040037435A KR1020020065915A KR20020065915A KR20040037435A KR 20040037435 A KR20040037435 A KR 20040037435A KR 1020020065915 A KR1020020065915 A KR 1020020065915A KR 20020065915 A KR20020065915 A KR 20020065915A KR 20040037435 A KR20040037435 A KR 20040037435A
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KR
South Korea
Prior art keywords
sheave
bearing
injection
bearing press
pulley
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KR1020020065915A
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Korean (ko)
Inventor
정석제
박상진
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한라공조주식회사
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Priority to KR1020020065915A priority Critical patent/KR20040037435A/en
Publication of KR20040037435A publication Critical patent/KR20040037435A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0895—Component parts, e.g. sealings; Manufacturing or assembly thereof driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C2045/0086—Runner trees, i.e. several articles connected by a runner

Abstract

PURPOSE: A hybrid pulley and a manufacturing method are provided to decrease the weight of the pulley by manufacturing the bearing press part with metal and the rest with plastic, and to cut down cost by manufacturing various hybrid pulleys with axially moving the sheave and the bearing press part. CONSTITUTION: A hybrid pulley is composed of a metal sheave(100); a bearing press part(200) made of metal to press and fit the bearing; and a plastic connection part(300) connecting the sheave to the bearing press part. Plural injection grooves(101) are formed at the side of the sheave, and an injection path is formed between the inner periphery of the sheave and the outer periphery of the bearing press part. The connection part is formed by extruding plastic material through the injection grooves and the injection path. The size of the hybrid pulley is adjusted by moving the sheave and the bearing press part axially and relatively.

Description

하이브리드 풀리 및 제조방법{Hybrid Pulley and Manufacturing Method}Hybrid Pulley and Manufacturing Method

본 발명은, 자동차 공조장치에 사용되는 압축기용 풀리 및 그 제조방법에 관한 것으로, 특히 클러치리스 압축기에 사용되며 금속재질과 플라스틱재질로 형성된하이브리드 풀리 및 그 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulley for a compressor used in an automobile air conditioner and a manufacturing method thereof, and more particularly, to a hybrid pulley used in a clutchless compressor and formed of a metal material and a plastic material, and a method of manufacturing the same.

일반적으로 차량의 냉방시스템은 냉매의 압축, 응축, 팽창, 증발의 순환사이클에 의해 피냉방부의 온도를 외부의 온도보다 낮게 유지하는 것으로서, 이러한 순환사이클을 구성하는 압축기(compressor), 응축기(condenser), 팽창밸브, 증발기(evaporator)를 필수적으로 구비하고 있다.In general, the cooling system of a vehicle is to maintain the temperature of the cooled portion lower than the outside temperature by the circulation cycle of the refrigerant compression, condensation, expansion, evaporation, compressor, condenser (condenser) constituting such a circulation cycle. It is essentially equipped with an expansion valve and an evaporator.

최근에는, 상기 압축기로서 냉방상태에 따라 필요한 동력을 조절할 수 있는 가변용량형 압축기(variable compressor)의 수요가 점차 증대되고 있는데, 이러한 가변용량형 압축기에서는 압축기로 전달되는 구동력을 단속하는 클러치가 불필요하게 된다. 즉, 구동측의 풀리와 종동측의 압축기 축 간의 구동력을 전달하는 클러치가 없으므로, 풀리는 단순히 동력을 전달하는 기능만을 수행하게 되며, 종래의 압축기에서와 같이 강한 추력과 마찰저항을 받지 않게 되므로 저중량으로 설계하는 것이 요구되어 왔다.Recently, there is a growing demand for a variable capacity compressor capable of adjusting the required power according to the cooling state as the compressor. In such a variable capacity compressor, a clutch for controlling the driving force transmitted to the compressor is unnecessary. do. That is, since there is no clutch that transmits the driving force between the pulley on the driving side and the compressor shaft on the driven side, the pulley simply performs the function of transmitting power, and as it does not receive strong thrust and frictional resistance as in the conventional compressor, Design has been required.

상기와 같은 필요를 충족하기 위해, 풀리를 플라스틱 재질로 제작하는 방안을 생각할 수 있는데, 이 경우 플라스틱을 사출한 후 냉각될 때 열수축으로 인한 변형이 발생하게 되므로, 정확한 치수의 풀리를 제작하는 것이 곤란하며, 또한, 벨트가 연결되는 부분에서는 벨트와의 마찰에 의해 열이 발생하므로, 풀리 전체를 플라스틱으로 제작하는 것은 한계가 있게 된다.In order to meet the needs as described above, it is conceivable to manufacture a pulley made of a plastic material. In this case, it is difficult to manufacture a pulley having an accurate dimension since deformation due to heat shrinkage occurs when the plastic is injected and then cooled. In addition, since the heat is generated by friction with the belt in the portion where the belt is connected, there is a limit to manufacturing the entire pulley made of plastic.

그리하여, 종래에는 풀리 전체를 간단한 구조로 스틸(steel)로 제작하여 왔으나, 위와 같은 저중량 풀리의 요구면에 있어서는 여전히 개선의 여지가 있어 왔으며, 필요한 제품의 사양에 따라 치수가 다른 풀리를 제조할 수 있는 금형을 별도로 제작하여야 하였는 바 제조비용이 많이 드는 문제점이 있어 왔다.Thus, in the past, the whole pulley has been manufactured in steel with a simple structure, but there is still room for improvement in the required surface of the low-weight pulley as described above, and it is possible to manufacture pulleys having different dimensions according to the specifications of the required products. There has been a problem in that the manufacturing cost of the mold had to be manufactured separately.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 벨트가 연결되는 쉬브(sheave)와 베어링이 설치되는 베어링압입부를 금속재질로 제작하고, 상기 부분을 제외한 부분은 플라스틱 재질로 제작한 저중량의 하이브리드 풀리를 제공하는 것을 목적으로 한다.The present invention has been made in order to solve the above problems, the sheave (sheave) to which the belt is connected and the bearing press-fitting portion is installed in a metal material, except for the part is made of a plastic material of low weight It is an object to provide a hybrid pulley.

또한, 본 발명은 풀리를 제조할 때에 쉬브와 베어링압입부를 상대적으로 축방향으로 이동시킴으로써 다양한 치수의 하이브리드 풀리를 제조할 수 있는 하이브리드 풀리 제조방법을 제공하는 것을 목적으로 한다.In addition, an object of the present invention is to provide a hybrid pulley manufacturing method that can produce a hybrid pulley of various dimensions by moving the sheave and bearing indentation relative to the axial direction when manufacturing the pulley.

도1은, 본 발명에 따른 하이브리드 풀리의 사시도이다.1 is a perspective view of a hybrid pulley according to the present invention.

도2는, 도1의 하이브리드 풀리의 측단면도이다.FIG. 2 is a side cross-sectional view of the hybrid pulley of FIG. 1.

도3은, 도1의 하이브리드 풀리의 분해사시도이다.3 is an exploded perspective view of the hybrid pulley of FIG.

도4는, 본 발명에 따른 하이브리드 풀리의 제조방법을 나타내는 측단면도이다.4 is a side sectional view showing a method for manufacturing a hybrid pulley according to the present invention.

<도면의 주요부분에 대한 설명><Description of main parts of drawing>

100... 쉬브(sheave), 101... 사출홈,100 ... sheave, 101 ... injection groove,

102... 사출로, 200... 베어링압입부,102 ... injection, 200 ... bearing press,

300... 연결부, W... (치수조정을 위한) 이동폭.300 ... connection, W ... travel (for dimensioning).

본 발명에 따른 하이브리드 풀리는, 금속재질의 쉬브(sheave)와; 베어링이 압입되는 금속재질의 베어링압입부와; 상기 쉬브와 베어링압입부를 연결하는 플라스틱 재질의 연결부를 포함하는 것을 특징으로 한다.Hybrid pulley according to the present invention, and sheave (sheave) made of metal; A bearing pressing portion made of a metal material into which the bearing is pressed; It characterized in that it comprises a connecting portion of a plastic material connecting the sheave and the bearing press-in portion.

또한, 상기 쉬브의 일측면에는 다수(多數)의 사출홈이 형성되고, 상기 쉬브의 내주면과, 상기 베어링압입부의 외주면 사이에는 사출로(runner)가 형성되어, 상기 사출홈과 사출로를 통하여 플라스틱 재료가 사출되어 상기 연결부가 형성되는 것을 특징으로 한다.In addition, a plurality of injection grooves are formed on one side of the sheave, and an injection passage is formed between the inner circumferential surface of the sheave and the outer circumferential surface of the bearing press-fitting portion, and the plastic is formed through the injection groove and the injection passage. The material is injected to form the connection portion.

또한, 본 발명에 따른 하이브리드 풀리 제작방법은, 일측면에는 다수(多數)의 사출홈이 형성된 금속재질의 쉬브와 금속재질의 베어링압입부를 서로 동심(同心)을 이루도록 정렬하여 고정하는 단계와; 상기 사출홈과, 상기 쉬브의 내주면과상기 베어링압입부의 외주면 사이에 형성된 사출로를 통하여 플라스틱 재료를 사출함으로써 연결부를 형성하는 단계를 포함하는 것을 특징으로 한다.In addition, the hybrid pulley manufacturing method according to the present invention includes the steps of fixing and aligning the metal sheave and the bearing press-fitting portion of the metal material having a plurality of injection grooves on one side to form concentric with each other; And forming a connection part by injecting a plastic material through an injection path formed between the injection groove, the inner circumferential surface of the sheave and the outer circumferential surface of the bearing press-fitting portion.

또한, 상기 쉬브와 베어링압입부를 정렬하여 고정하는 단계에 있어서, 상기 쉬브와 베어링압입부를 상대적으로 축방향으로 이동시킴으로써 치수를 조정하는 단계를 더 포함하는 것을 특징으로 한다.In addition, the step of aligning and fixing the sheave and the bearing press-in, characterized in that it further comprises the step of adjusting the dimensions by moving the sheave and the bearing press-in relatively in the axial direction.

이하에서는, 도면을 참조하여 본 발명의 실시예를 상세하게 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

도1은 본 발명에 따른 하이브리드 풀리의 사시도이고, 도2는 측단면도, 도3은 분해사시도이다.1 is a perspective view of a hybrid pulley according to the present invention, Figure 2 is a side cross-sectional view, Figure 3 is an exploded perspective view.

도1에 도시한 바와 같이, 본 발명에 따른 하이브리드 풀리는, 쉬브(100)와, 상기 쉬브(100)의 내측에 위치한 베어링압입부(200)와, 상기 쉬브(100)와 베어링압입부(200) 사이에 사출되어 형성된 연결부(300)을 포함한다.As shown in FIG. 1, the hybrid pulley according to the present invention includes a sheave 100, a bearing press part 200 located inside the sheave 100, a sheave 100 and a bearing press part 200. It includes a connection portion 300 is formed between the injection.

상기 쉬브(100)는, 그 외주면에는 벨트가 설치되는 홈(103)이 다수개 형성되고, 그 측면에는 플라스틱 재료가 사출되는 사출홈(101)이 다수개 형성된다(도2, 도3 참조). 상기 사출홈(101)의 개수는, 비록 도면에는 8개인 경우를 도시하였지만 8개에 한정되지는 않는다. 또한, 상기 쉬브(100)는 벨트와의 마찰로 인하여 열이 많이 발생하므로 금속재질, 특히 스틸(steel)로 제작되는 것이 바람직하다.The sheave 100, the outer peripheral surface is formed with a plurality of grooves 103, the belt is installed, the side is formed with a plurality of injection grooves 101, the plastic material is injected (see Figs. 2 and 3) . The number of the injection grooves 101 is not limited to eight although the figure shows eight cases. In addition, since the sheave 100 generates a lot of heat due to friction with the belt, it is preferable that the sheave 100 is made of a metal material, especially steel.

상기 베어링압입부(200)는, 도2에 도시한 바와 같이, 그 내주면에는 베어링(미도시)이 설치되며, 그 외주면의 직경은 상기 쉬브(100)의 내주면의 직경보다 작으므로 상기 베어링압입부(200)의 외주면과 쉬브(100)의 내주면 사이에는 사출로 (runner,102)가 원주방향으로 형성되어(도4참조), 상기 사출로를 통해서 플라스틱재료가 사출된다. 또한, 베어링압입부(200)는 베어링(미도시)에서 열이 많이 발생하므로 금속재질, 특히 스틸로 제작되는 것이 바람직하다As shown in FIG. 2, the bearing press-fitting part 200 is provided with a bearing (not shown) on the inner circumferential surface thereof, and the diameter of the outer circumferential face is smaller than the diameter of the inner circumferential surface of the sheave 100. Between the outer circumferential surface of the 200 and the inner circumferential surface of the sheave 100, an injection passage (runner 102) is formed in the circumferential direction (see FIG. 4), and the plastic material is injected through the injection passage. In addition, since the bearing press part 200 generates a lot of heat in the bearing (not shown), the bearing press part 200 is preferably made of metal, in particular, steel.

상기 연결부(300)는, 상기 사출홈(101)과 사출로(102, 도4참조)를 통하여 플라스틱 재료가 사출되어 형성된 것으로, 상기 쉬브(100)와 베어링압입부(200)을 일체로 결합시키는 기능을 수행한다. 상기 연결부(300)의 사출된 단부들은, 도2에 점선으로 도시한 바와 같이, 사출과 동시에 각각 리베팅 및 구부림처리되는 것이 바람직하다.The connection part 300 is formed by injecting a plastic material through the injection groove 101 and the injection path 102 (see FIG. 4), and integrally couples the sheave 100 and the bearing press-fitting part 200. Perform the function. The ejected ends of the connection part 300 are preferably riveted and bent at the same time as the ejection, as shown by the dotted lines in FIG. 2.

이하에서는, 본 발명에 따른 하이브리드 풀리의 제조방법의 실시예를 설명한다.Hereinafter, an embodiment of a method of manufacturing a hybrid pulley according to the present invention will be described.

도4(a)는 쉬브(100)와 베어링압입부(200)의 정렬(align)과정을 나타내는 측단면도, 도4(b)는 플라스틱재료가 사출된 직후의 측단면도, 도4(c)는 리베팅처리 및 구부림처리가 된 하이브리드 풀리의 측단면도이다.Figure 4 (a) is a side cross-sectional view showing the alignment process of the sheave 100 and the bearing pressing portion 200, Figure 4 (b) is a side cross-sectional view immediately after the plastic material is injected, Figure 4 (c) is Side sectional view of a hybrid pulley with riveting and bending.

도4(a)에 도시한 바와 같이, 베어링압입부(200)를 상기 쉬브(100)의 내측에 서로 동심을 이루도록 위치시킨 후에 쉬브(100)와 베어링압입부(200)를 지지수단(미도시)으로 고정한다. 이 때, 도면에 W로 나타낸 바와 같이, 베어링압입부(200)를 쉬브(100)에 대하여 축방향으로 적절히 이동시켜, 필요한 제품에 따라 그 치수를 조정할 수 있다. 여기에서는 비록 베어링압입부(200)만을 이동시키는 경우를 설명하고 있지만, 쉬브(100)나 베어링압입부(200) 중 어느 것을 이동시켜도 무방하다.As shown in FIG. 4 (a), the bearing press part 200 is positioned to be concentric with each other inside the sheave 100, and then the sheave 100 and the bearing press part 200 support means (not shown). ) At this time, as indicated by W in the figure, the bearing press-fit part 200 can be appropriately moved in the axial direction with respect to the sheave 100, and its dimensions can be adjusted according to the required product. Although the case where only the bearing press part 200 is moved is demonstrated here, you may move either the sheave 100 or the bearing press part 200. FIG.

그 후, 사출수단(미도시)으로써 용융상태의 플라스틱 재료를 상기 사출홈 (101) 및 사출로(102)를 통하여 사출한다(도2 및 도4 참조).Thereafter, the molten plastic material is injected through the injection groove 101 and the injection passage 102 as injection means (not shown) (see Figs. 2 and 4).

이와 동시에, 상기 사출홈(101) 및 사출로(102)를 통해 사출된 사출단부를 리베팅수단(미도시)으로 리베팅 및 구부림처리함으로써 풀리의 제조를 완료한다 (도4(c)참조).At the same time, the injection end portion injected through the injection groove 101 and the injection furnace 102 is riveted and bent by riveting means (not shown) to complete the manufacture of the pulley (see Fig. 4 (c)). .

또한, 상기의 실시예와는 다르게, 연결부(300)를 베어링압입부(200)와 일체로 사출한 후에, 상기 일체로 사출된 부재를 쉬브(100)에 결합하는 방법도 가능하다. 이 방법에서는, 사출할 때에 상기 연결부(300)에 쉬브(100)의 사출홈(101)에 삽입되어 결합되는 돌출부를 형성하기 위한 가공수단이 필요하게 된다. 그 밖의 과정은 상기의 실시예와 동일하므로 자세한 설명은 생략하기로 한다.In addition, unlike the embodiment described above, after the connection part 300 is integrally injected with the bearing press part 200, a method of coupling the integrally injected member to the sheave 100 is also possible. In this method, processing means for forming a projection to be inserted into and coupled to the injection groove 101 of the sheave 100 in the connecting portion 300 when the injection. Other processes are the same as the above embodiment, so detailed description thereof will be omitted.

본 발명에 따른 저중량의 하이브리드 풀리는, 벨트가 연결되는 쉬브와 베어링이 설치되는 베어링압입부만을 금속재질로 형성하고, 상기 부분을 제외한 나머지 부분은 플라스틱 재질로 형성하므로 저중량의 풀리를 구현할 수 있게 된다.The low-weight hybrid pulley according to the present invention may be formed of a metal material, and the bearing press-fitting part in which the sheave and the bearing to which the belt is connected is formed of a metal material, and the remaining parts are formed of a plastic material so that the low-weight pulley can be realized.

또한, 풀리를 제조할 때에 쉬브와 베어링압입부를 상대적으로 축방향으로 이동시킴으로써 다양한 치수의 하이브리드 풀리를 제조할 수 있으므로 제조비용이 절감되는 효과가 있다.In addition, when manufacturing the pulley by moving the sheave and bearing indentation relative to the axial direction can be produced a hybrid pulley of various dimensions has the effect of reducing the manufacturing cost.

Claims (4)

금속재질의 쉬브(100)와;Sheave 100 made of metal; 베어링이 압입되는 금속재질의 베어링압입부(200)와;A bearing press part 200 made of a metal material into which the bearing is press-fitted; 상기 쉬브와 베어링압입부를 연결하는 플라스틱 재질의 연결부(300)를 포함하는 것을 특징으로 하는 하이브리드 풀리.Hybrid pulley, characterized in that it comprises a connecting portion 300 of the plastic material connecting the sheave and the bearing indentation. 제1항에 있어서,The method of claim 1, 상기 쉬브(100)의 일측면에는 다수(多數)의 사출홈(101)이 형성되고, 상기 쉬브(100)의 내주면과 상기 베어링압입부(200)의 외주면 사이에는 사출로(102)가 형성되어, 상기 사출홈(101)과 사출로(102)를 통하여 플라스틱 재료가 압출되어 상기 연결부(300)가 형성되는 것을 특징으로 하는 하이브리드 풀리.A plurality of injection grooves 101 are formed on one side of the sheave 100, and an injection passage 102 is formed between the inner circumferential surface of the sheave 100 and the outer circumferential surface of the bearing press-fitting part 200. The hybrid pulley, characterized in that the connecting portion 300 is formed by the plastic material is extruded through the injection groove 101 and the injection passage (102). 일측면에는 다수(多數)의 사출홈(101)이 형성된 금속재질의 쉬브(100)와 금속재질의 베어링압입부(200)를 서로 동심(同心)을 이루도록 정렬하여 고정하는 단계와;Aligning and fixing the metallic sheave 100 having a plurality of injection grooves 101 and bearing indentations 200 made of metal formed on one side to form concentricities with each other; 상기 사출홈(101)과 상기 쉬브(100)의 내주면과 상기 베어링압입부(200)의 외주면 사이에 형성된 사출로(102)를 통하여 플라스틱재료를 압출함으로써 연결부 (300)를 형성하는 단계를 포함하는 것을 특징으로 하는 하이브리드 풀리의 제조방법.And forming a connection part 300 by extruding a plastic material through an injection path 102 formed between the injection groove 101 and the inner circumferential surface of the sheave 100 and the outer circumferential surface of the bearing press-fitting part 200. Method for producing a hybrid pulley, characterized in that. 제3항에 있어서,The method of claim 3, 상기 쉬브(100)와 베어링압입부(200)를 정렬하여 고정하는 단계에 있어서, 상기 쉬브(100)와 베어링압입부(200)를 상대적으로 축방향으로 이동시킴으로써 치수를 조정하는 단계를 더 포함하는 것을 특징으로 하는 하이브리드 풀리의 제조방법.In the step of aligning and fixing the sheave 100 and the bearing press-fitting part 200, the method further comprises adjusting the dimensions by moving the sheave 100 and the bearing press-fitting part 200 in a relatively axial direction. Method for producing a hybrid pulley, characterized in that.
KR1020020065915A 2002-10-28 2002-10-28 Hybrid pulley and manufacturing method KR20040037435A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101231172B1 (en) * 2010-11-10 2013-02-07 우원식 Manufaturing method for pulley assembly

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JP2000179568A (en) * 1998-12-11 2000-06-27 Ogura Clutch Co Ltd Power transmission
KR20010026882A (en) * 1999-09-09 2001-04-06 이계안 Plastic damper pulley for vehicle and manufacturing method the same
KR20020058137A (en) * 2000-12-29 2002-07-12 이계안 Plastic hub and method of damper pully using thermoplastic
KR100349701B1 (en) * 1998-03-09 2002-08-24 더 게이츠 코포레이션 Method of producing a plastic pulley with a metal insert

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Publication number Priority date Publication date Assignee Title
KR100349701B1 (en) * 1998-03-09 2002-08-24 더 게이츠 코포레이션 Method of producing a plastic pulley with a metal insert
JP2000179568A (en) * 1998-12-11 2000-06-27 Ogura Clutch Co Ltd Power transmission
KR20010026882A (en) * 1999-09-09 2001-04-06 이계안 Plastic damper pulley for vehicle and manufacturing method the same
KR20020058137A (en) * 2000-12-29 2002-07-12 이계안 Plastic hub and method of damper pully using thermoplastic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101231172B1 (en) * 2010-11-10 2013-02-07 우원식 Manufaturing method for pulley assembly

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