KR100789989B1 - Manufacturing method of solid lubricant embedded sliding bearing - Google Patents

Manufacturing method of solid lubricant embedded sliding bearing Download PDF

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KR100789989B1
KR100789989B1 KR1020060056670A KR20060056670A KR100789989B1 KR 100789989 B1 KR100789989 B1 KR 100789989B1 KR 1020060056670 A KR1020060056670 A KR 1020060056670A KR 20060056670 A KR20060056670 A KR 20060056670A KR 100789989 B1 KR100789989 B1 KR 100789989B1
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South Korea
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solid lubricant
sliding bearing
embedded sliding
copper
steel
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KR1020060056670A
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Korean (ko)
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KR20070121885A (en
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김성희
최원호
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주식회사 에스.오.비
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    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1095—Construction relative to lubrication with solids as lubricant, e.g. dry coatings, powder
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121—Use of special materials
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/14—Special methods of manufacture; Running-in

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

본 발명은 고체윤활제 매립형 미끄럼베어링에 관한 것으로, 금속 기체에 관통홈을 형성하고 그 관통홈에 고체윤활제를 삽입한 고체윤활제 매립형 미끄럼베어링에 있어서, 상기 금속 기체가 접동면으로 부터 일정 두께 만큼 동층(銅層)이 형성된 강철재인 것을 특징으로 하며, 본 발명에 의하면, 접동면에서는 상대재의 마모가 적고 윤활성이 양호하게 유지되면서도, 내하중성의 증대로 고하중하에서 장시간 사용하여도 금속 기체의 형태적 변형이 없는 고체윤활제 매립형 미끄럼베어링을 제공할 수 있는 효과가 있다.The present invention relates to a solid lubricant embedded sliding bearing, wherein, in a solid lubricant embedded sliding bearing having a through groove formed in a metal base and a solid lubricant inserted into the through groove, the metal base is formed by a predetermined thickness from the sliding surface. Iii) is formed steel, and according to the present invention, the sliding surface is less wear of the mating material and the lubricating property is maintained well, but the morphological deformation of the metal gas even if used for a long time under high load due to the increase in load resistance There is an effect that can provide a solid lubricant embedded sliding bearing free.

미끄럼베어링, 고체윤활제 Sliding Bearing, Solid Lubricant

Description

고체윤활제 매립형 미끄럼베어링 제조 방법{MANUFACTURING METHOD OF SOLID LUBRICANT EMBEDDED SLIDING BEARING}MANUFACTURING METHOD OF SOLID LUBRICANT EMBEDDED SLIDING BEARING

도 1a 및 도 1b는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 제조에 사용되는 금속 기체를 성형하기 위하여, 원통형의 강철 기체 내부에 동분말을 투입한 후 강철 기체를 회전시키면서 가열하여 강철 기체 내면에 동층을 형성하는 방법을 보여 주는 단면도이다.1a and 1b is a metal lubricant used in the manufacture of the solid lubricant embedded sliding bearing according to the present invention, after the copper powder is added to the inside of the cylindrical steel gas is heated while rotating the steel gas on the inner surface of the steel substrate It is sectional drawing which shows how to form a copper layer.

도 1c는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 제조에 사용되는 금속 기체를 성형하기 위하여, 원통형의 강철 기체에 내부에 동관을 압입하여 동층을 형성하는 방법을 보여 주는 단면도이다.Figure 1c is a cross-sectional view showing a method for forming a copper layer by injecting a copper tube into a cylindrical steel base to form a metal base used in the manufacture of the solid lubricant embedded sliding bearing according to the present invention.

도 1d는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 제조에 사용되는 금속 기체의 단면도이다.1D is a cross-sectional view of a metal gas used in the manufacture of a solid lubricant embedded sliding bearing according to the present invention.

도 2a는 고체윤활제가 삽입될 관통홈이 형성된 금속 기체의 사시도이다.2A is a perspective view of a metal gas in which a through groove is formed into which a solid lubricant is inserted.

도 2b는 도 2a에 도시된 금속 기체의 단면도이다.FIG. 2B is a cross-sectional view of the metal substrate shown in FIG. 2A.

도 3a는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 금속 기체로 부터 고체윤활제 중 일부를 분리하여 도시한 사시도이다.Figure 3a is a perspective view showing a part of the solid lubricant separated from the metal gas of the solid lubricant embedded sliding bearing according to the present invention.

도 3b는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 단면도이다.3B is a cross-sectional view of the solid lubricant embedded sliding bearing according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *             Explanation of symbols on the main parts of the drawings

1 : 강철 기체 3 : 동(銅) 분말1: steel base 3: copper powder

5 : 버너 7a, 7b : 밀폐부재5: burner 7a, 7b: sealing member

9a, 9b : 플랜지 11a, 11b : 회전축9a, 9b: flange 11a, 11b: shaft of rotation

13 : 코일 15 : 고주파 가열장치13: coil 15: high frequency heating apparatus

17 : 동관 19 : 동층17: Dongguan 19: copper floor

21 : 금속 기체 23 : 고체윤활제21 metal gas 23 solid lubricant

25 : 관통홈25: through groove

본 발명은 고체윤활제 매립형 미끄럼베어링에 관한 것으로, 더 상세하게는 접동면에서는 상대재의 마모가 적고 윤활성이 유지되면서도, 내하중성의 증대로 고하중하에서 장시간 사용하여도 기체의 변형이 없는 고체윤활제 매립형 미끄럼베어링에 관한 것이다.The present invention relates to a solid lubricant embedded sliding bearing. More specifically, the sliding surface of the solid lubricant is non-strained even when used for a long time under high loads due to the increase in load resistance, even though the wear of the counterpart is less wear and lubrication on the sliding surface. It is about a bearing.

종래 고체윤활제 매립형 미끄럼베어링은 흑연(graphite), 이황화몰리브 덴(MoS2) 또는 이황화텅스텐(WS2) 등의 고체 윤활성 물질을 윤활유, 왁스 등의 액상 또는 페이스트상 윤활물질 및 수지 등의 결합제와 혼합하여 입상의 형태로 성형한 후 금속 기체(金屬 基體)에 형성된 홈에 삽입 또는 매립함으로써 제조되었다.Conventional solid lubricant embedded sliding bearings include solid lubricants, such as graphite, molybdenum disulfide (MoS 2 ) or tungsten disulfide (WS 2 ), and liquid or paste-like lubricants such as lubricants and waxes, and binders such as resins. It was prepared by mixing and molding into a granular form and then inserting or embedding it into a groove formed in a metal base.

이 때, 고체윤활제가 매립되는 금속 기체는 주로 동이나 동합금(이하, 본 발명의 명세서에서는 동과 동합금을 통칭하여 단순히 "동(銅)"이라고 함)을 소재로 한 기체가 사용되었다. 금속 기체로 동이 사용되어 온 이유는 동이 연성 및 전성이 좋은 반면 저널이나 왕복 장치 등 미끄럼베어링의 접동면에 접하는 상대재는 대부분 강철이나 합금강이므로, 이들 상대재와의 마찰에 의하여 상대재를 마모시키지 않게 하기 위해서이다. At this time, a metal gas in which the solid lubricant was embedded was mainly made of copper or a copper alloy (hereinafter referred to simply as "copper" in the specification of the present invention, copper and copper alloy). The reason copper has been used as a metal gas is that copper has good ductility and malleability, but most of the counterparts in contact with sliding surfaces of sliding bearings such as journals and reciprocating devices are made of steel or alloy steel, so that the counterparts do not wear out due to friction with these counterparts. To do that.

그러나 고체윤활제 매립형 미끄럼베어링의 금속 기체로 동 소재를 사용할 경우 강도가 약하여 고하중(지지하중 300-700kg/㎠ 또는 그 이상)에 취약한 단점이 있다. 즉, 동 기체 미끄럼베어링은 고하중 조건에서 장시간 사용할 경우 하중이 가해지는 방향으로 형태적 변형이 일어나고 이 것은 편마모 및 마찰을 증대시켜 미끄럼 베어링으로서의 기능을 잃게 한다. However, when the copper material is used as the metal gas of the solid lubricant embedded sliding bearing, there is a disadvantage in that the strength is weak, and thus it is vulnerable to high loads (supporting load of 300-700 kg / cm 2 or more). That is, the copper sliding bearings have a morphological deformation in the direction in which the load is applied when used for a long time under high load conditions, and this increases the wear and friction and loses its function as a sliding bearing.

그렇다고, 금속 기체로 상대재와 동일한 재질인 강철재를 사용하는 것은 단시간 사용으로 상대재의 마모를 초래할 것이므로 결코 바람직하지 않는 것이다.Nevertheless, the use of steel, which is the same material as the counterpart, as the metal gas is not preferable since it will cause wear of the counterpart in a short time.

본 발명은 상술한 종래 기술의 문제점을 해결하고자 안출된 것으로, 접동면에서는 상대재의 마모가 적고 윤활성이 유지되면서도, 내하중성의 증대로 고하중하에서 장시간 사용하여도 기체의 형태적 변형이 없는 고체윤활제 매립형 미끄럼베어링을 제공하는 데 그 목적이 있다.The present invention has been made to solve the above-mentioned problems of the prior art, the sliding surface is less wear of the mating material and maintains the lubrication, solid lubricant without morphological deformation of the gas even if used for a long time under high load due to increased load resistance The purpose is to provide an embedded sliding bearing.

상술한 목적을 달성하고자 하는 본 발명은The present invention to achieve the above object

금속 기체에 관통홈을 형성하고 그 관통홈에 고체윤활제를 삽입한 고체윤활제 매립형 미끄럼베어링에 있어서, 상기 금속 기체가 접동면으로 부터 일정 두께 만큼 동층(銅層)이 형성된 강철재인 것을 특징으로 한다.A solid lubricant embedded sliding bearing having a through groove formed in a metal base and a solid lubricant inserted into the through groove, wherein the metal base is a steel material having a copper layer formed by a predetermined thickness from a sliding surface.

상술한 바와 같이 상기 동층은 순동층 뿐만 아니라 황동 등 동합금층을 포함한다.As described above, the copper layer includes a copper alloy layer such as brass as well as a pure copper layer.

상기 고체윤활제는 흑연(graphite), 이황화몰리브덴(MoS2) 또는 이황화텅스텐(WS2) 가운데서 선택된 1 또는 2이상 물질을 수지 등의 결합제와 혼합하여 막대 형상 등의 입체적 형태로 성형한 것이다. 이 때 윤활유, 왁스 등의 액상 또는 페이 스트상 윤활물질을 더 첨가할 수도 있다.The solid lubricant is formed by forming one or two or more materials selected from graphite, molybdenum disulfide (MoS 2 ) or tungsten disulfide (WS 2 ) into a three-dimensional form such as a rod by mixing a binder such as a resin. At this time, a liquid or paste lubricating substance such as lubricating oil or wax may be further added.

이하, 첨부한 도면을 참조하여 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 바람직한 실시 예를 상세히 설명한다.Hereinafter, exemplary embodiments of a solid lubricant embedded sliding bearing according to the present invention will be described in detail with reference to the accompanying drawings.

도 1d는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 제조에 사용되는 금속 기체(21)의 단면도이고, 도 3a는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 금속 기체(21)로부터 매립된 고체윤활제(23) 중 일부를 분리하여 도시한 사시도이고, 도 3b는 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 단면도이다. 우선, 도 1d, 도 3a 및 도 3b를 참조하여 본 발명에 따른 고체윤활제 매립형 미끄럼베어링의 특징을 설명한다. FIG. 1D is a cross-sectional view of the metal base 21 used in the manufacture of the solid lubricant embedded sliding bearing according to the present invention, and FIG. 3A is a solid lubricant embedded from the metal base 21 of the solid lubricant embedded sliding bearing according to the present invention. 23 is a perspective view showing a part of the separation, Figure 3b is a cross-sectional view of the solid lubricant embedded sliding bearing according to the present invention. First, the characteristics of the solid lubricant embedded sliding bearing according to the present invention will be described with reference to FIGS. 1D, 3A, and 3B.

도 1d, 도 3a 및 도 3b를 참조하면, 본 발명의 특징은 금속 기체(21)에 관통홈(25)을 형성하고 그 관통홈(25)에 고체윤활제(23)를 삽입하여 고체윤활제(23) 매립형 미끄럼베어링을 성형하되, 상기 금속 기체(21)로 접동면(상대재와 접촉하여 미끄럼 운동이 일어나는 면)으로 부터 일정 두께 만큼 동층(銅層)(19)이 형성된 강철 기체(1)를 사용하는 데 있다.Referring to FIGS. 1D, 3A, and 3B, a feature of the present invention is to form a through groove 25 in the metal base 21 and insert a solid lubricant 23 into the through groove 25 so as to provide a solid lubricant 23. ) A buried sliding bearing is formed, and a steel base 1 having a copper layer 19 formed by a predetermined thickness from the sliding surface (the surface in which sliding motion occurs due to contact with the counterpart) with the metal base 21 is formed. To use.

도 1a 및 도 1b는 상기 금속 기체(21)를 성형하기 위하여, 원통형의 강철 기체(1) 내부에 동분말(3)을 투입한 후 강철 기체(1)를 회전시키면서 가열하여 강철 기체(1) 내면에 동층(19)을 형성하는 방법을 보여 주는 단면도이다. 도 1a에 도시된 바와 같이, 강철 기체(1) 내부에 동 분말(3)을 투입하고, 그 양단을 밀폐부재(7a, 7b)로 막은 후, 상기 밀폐부재(7a, 7b) 외측에 플랜지(9a, 9b)가 부착된 회전축(11a, 11b)을 연결하여 회전시키면서 버너(5)로 강철 기체(1) 외부를 가열하면, 강철 기체(1) 내부의 동 분말(3)은 용융되면서 강철 기체(1) 내면에 융착된다. 가열을 중지하고 냉각시키면서도 강철 기체(1)을 일정 시간 동안 더 회전시켜 주면 그 내면에 동층(19)을 형성할 수 있다. 도 1b에 도시된 바와 같이, 상기 강철 기체(1) 내부에 투입된 동 분말(3)은 강철 기체(1) 외부에 코일(13)을 배치하고, 코일 양단에 고주파 가열장치(15)를 연결하여 가열할 수도 있으며, 이와 등가적인 다른 방법으로 가열할 수도 있다.1A and 1B show that in order to form the metal base 21, a copper powder 3 is introduced into a cylindrical steel base 1, and then heated while rotating the steel base 1 to form the steel base 1. It is sectional drawing which shows the method of forming the copper layer 19 in an inner surface. As shown in FIG. 1A, copper powder 3 is introduced into the steel substrate 1, and both ends thereof are closed by sealing members 7a and 7b, and then flanges outside the sealing members 7a and 7b. When the rotary shafts 11a and 11b to which the 9a and 9b are attached are heated while the steel base 1 is heated by the burner 5 while the copper powder 3 inside the steel base 1 is melted, the steel base is melted. (1) It is fused on the inner surface. If the steel base 1 is further rotated for a predetermined time while the heating is stopped and cooled, the copper layer 19 can be formed on the inner surface thereof. As shown in FIG. 1B, the copper powder 3 introduced into the steel base 1 is disposed with a coil 13 outside the steel base 1, and a high frequency heating device 15 is connected to both ends of the coil. It may be heated, or may be heated by other equivalent methods.

뿐만 아니라, 상기 강철 기재(1) 내면의 동층(19)은 도 1c에 도시된 바와 같이 원통형의 강철 기체(1)에 내부에 동관(17)을 압입하여 형성할 수도 있다.In addition, the copper layer 19 on the inner surface of the steel substrate 1 may be formed by press-fitting the copper tube 17 into the cylindrical steel base 1 as shown in FIG. 1C.

도 1d는 상술한 방법으로 강철 기체(1) 내면에 동층(19)을 형성한 금속 기체(21)의 단면을 보여 준다. 또한, 도 2a 및 도 2b는 도 1d에 도시된 강철 기체(21)에 내외부를 관통하는 관통홈(25)을 형성한 상태를 보여 준다. 도 3a 및 도 3b에 도시된 바와 같이, 상기 관통홈(25)에는 상기 고체윤활제(23)가 삽입된다. 이렇게 함으로써, 접동면에서는 전성, 연성 및 윤활성이 좋으면서도, 상대재의 고하중을 형태적 변형없이 장시간 견딜 수 있는 고체윤활제 매립형 미끄럼베어링을 얻 게 된다. FIG. 1D shows a cross section of the metal substrate 21 in which the copper layer 19 is formed on the inner surface of the steel substrate 1 by the above-described method. 2A and 2B show a state in which the through groove 25 penetrating the inside and the outside is formed in the steel body 21 shown in FIG. 1D. 3A and 3B, the solid lubricant 23 is inserted into the through groove 25. In this way, the sliding surface is obtained with a solid lubricant embedded sliding bearing that has good malleability, ductility and lubricity and can withstand high loads of the counterpart without morphological deformation for a long time.

이상에서는 편의상 부시형 미끄럼베어링을 예시적으로 설명하였지만, 판형의 강철 기체 상면에 동판을 접착한 후 관통홈을 형성하여 고체윤활제를 매립함으로써 평판형 미끄럼베어링도 제조할 수 있다.Although the bush-type sliding bearing has been exemplarily described for convenience, the flat-type sliding bearing can also be manufactured by bonding the copper plate to the upper surface of the plate-shaped steel base to form a through groove to bury the solid lubricant.

상술한 구성을 갖는 본 발명에 의하면, 접동면에서는 상대재의 마모가 적고 윤활성이 양호하게 유지되면서도, 내하중성의 증대로 고하중하에서 장시간 사용하여도 금속 기체의 형태적 변형이 없는 고체윤활제 매립형 미끄럼베어링을 제공할 수 있는 효과가 있다.According to the present invention having the above-described configuration, the sliding surface is a solid lubricant embedded sliding bearing with less wear of the mating material on the sliding surface and good lubrication, but without the morphological deformation of the metal gas even if used for a long time under high load due to the increase in load resistance There is an effect that can provide.

이상 본 발명을 첨부한 도면에 도시된 실시 예에 의하여 설명하였으나, 본 발명의 보호 범위를 이에 한정하고자 하는 것은 아니며, 본 발명의 보호 범위는 특허청구범위에 기재된 사항 및 이에 균등한 모든 실시 예에 미친다고 해석하여야 한다.Although the present invention has been described with reference to the embodiments shown in the accompanying drawings, the scope of protection of the present invention is not intended to be limited thereto, and the scope of protection of the present invention is set forth in the detailed description of the claims and all equivalent embodiments thereof. It should be interpreted as crazy.

Claims (2)

접동면으로 부터 일정 두께 만큼 동층(銅層)이 형성된 강철재에 관통홈을 형성하고 그 관통홈에 고체윤활제를 삽입한 미끄럼베어링에 있어서,In a sliding bearing in which a through groove is formed in a steel material having a copper layer formed by a predetermined thickness from a sliding surface, and a solid lubricant is inserted into the through groove. 상기 동층은 강철 기체(1) 내부에 동 분말(3)을 투입하고, 그 양단을 밀폐부재(7a, 7b)로 막은 후, 상기 밀폐부재(7a, 7b) 외측에 플랜지(9a, 9b)가 부착된 회전축(11a, 11b)을 연결하여 회전시키면서 동 분말을 가열하여 강철 기체(1) 내면에 융착시킴으로써 형성하는 것을 특징으로 하는 고체윤활제 매립형 미끄럼베어링 제조 방법.In the copper layer, copper powder 3 is introduced into the steel base 1, and both ends thereof are closed by sealing members 7a and 7b, and then flanges 9a and 9b are formed outside the sealing members 7a and 7b. A method of manufacturing a solid lubricant embedded sliding bearing, characterized in that the copper powder is heated and fused to an inner surface of the steel substrate (1) while connecting and rotating the attached rotating shafts (11a, 11b). 제 1 항에 있어서, The method of claim 1, 상기 동 분말의 가열 융착은 강철 기체(1) 외부를 버너(5)로 가열하거나, 강철 기체(1) 외부에 코일(13)을 배치하고, 코일 양단에 고주파 가열장치(15)를 연결하여 가열함으로써 이루어지는 것을 특징으로 하는 고체윤활제 매립형 미끄럼베어링 제조 방법.The heat fusion of the copper powder is heated by the burner 5 outside the steel base 1 or by arranging the coil 13 outside the steel base 1 and connecting the high frequency heating device 15 to both ends of the coil. Solid lubricant embedded sliding bearing manufacturing method, characterized in that it is made by.
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US5322372A (en) 1993-03-16 1994-06-21 You Lee Foo Bearing with embedded solid lubricant
US6896411B2 (en) 2003-07-10 2005-05-24 Lee Hu I-Long Self-lubricating bearing and method of producing the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322372A (en) 1993-03-16 1994-06-21 You Lee Foo Bearing with embedded solid lubricant
US6896411B2 (en) 2003-07-10 2005-05-24 Lee Hu I-Long Self-lubricating bearing and method of producing the same

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