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KR200335610Y1 - Lubrication Means in Heavy Machinery Rotation - Google Patents

Lubrication Means in Heavy Machinery Rotation Download PDF

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Publication number
KR200335610Y1
KR200335610Y1 KR2019980009435U KR19980009435U KR200335610Y1 KR 200335610 Y1 KR200335610 Y1 KR 200335610Y1 KR 2019980009435 U KR2019980009435 U KR 2019980009435U KR 19980009435 U KR19980009435 U KR 19980009435U KR 200335610 Y1 KR200335610 Y1 KR 200335610Y1
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shaft
grooves
bushing
circumferential surface
groove
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KR20000000151U (en
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이준희
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현대중공업 주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0467Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469Bearings or seals
    • F16H57/0471Bearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant

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

Abstract

본 고안은 샤프트와 부싱사이의 회전연결부에 윤활유의 공급이 원활하게 이루어질 수 있도록 그루브가 형성되어져있는 중장비 회전부에서의 윤활수단에 관한 것으로,The present invention relates to a lubrication means in the heavy machinery rotating portion is formed with a groove so that the supply of lubricating oil to the rotational connection between the shaft and the bushing,

상대적으로 경도가 높은 샤프트(1)의 외주면에 나선방향으로 길게 그루브(3a)를 형성하고 부싱(2)의 내주면상에도 상기 그루브(3a)의 반대방향으로 그루브(3b)를 형성하거나, 샤프트(1)의 외주면에 서로 반대 방향인 2개의 나선형상 그루브(3c)(3d)를 형성하여, 샤프트(1)와 부싱(2)의 조립시 서로 반대방향의 나선형상 그루브가 형성됨에 따라,Grooves 3a are formed on the outer circumferential surface of the shaft 1 having a relatively high hardness in the helical direction and grooves 3b are formed on the inner circumferential surface of the bushing 2 in the opposite direction to the grooves 3a. On the outer circumferential surface of 1), two spiral grooves 3c and 3d opposite to each other are formed, so that when the shaft 1 and the bushing 2 are assembled, spiral grooves opposite to each other are formed.

그루브로 부터의 거리에 관계없이 균일한 유막이 형성될 수 있도록 하고 샤프트(1)의 일측단에서 타측단까지 효과적인 윤활작용이 이루어지도록 하고 있다.Irrespective of the distance from the groove, a uniform oil film can be formed and effective lubrication can be made from one end to the other end of the shaft 1.

Description

중장비 회전부에서의 윤활수단Lubrication means in heavy machinery rotating parts

본 고안은 굴삭기와 같은 중장비에서의 회전부 윤활수단에 관한 것으로, 샤프트와 부싱사이의 회전연결부에 윤활유의 공급이 원활하게 이루어질 수 있도록 그루브가 형성되어져있는 중장비 회전부에서의 윤활수단에 관한 것이다.The present invention relates to a rotating part lubrication means in heavy equipment such as an excavator, and to a lubrication means in a heavy equipment rotating part in which a groove is formed so that lubricating oil can be smoothly supplied to the rotary connection portion between the shaft and the bushing.

일반적으로 굴삭기와 같은 중장비의 하부 동력 전달계통에는 여러가지 회전체가 있다.In general, there are various rotors in the lower power transmission system of heavy equipment such as excavators.

예를 들면, 상하부 로울러, 아이들러, 트랙링크등이 있는데, 이들은 대개 프레임에 직접 또는 간접적으로 고정되어 있는 샤프트와, 회전체에 연결되어져 있는 부싱으로 구성된다.For example, there are upper and lower rollers, idlers, track links, etc., which usually consist of a shaft fixed directly or indirectly to the frame and a bushing connected to the rotating body.

상기 샤프트는 회전체가 일정한 위치에서 회전운동을 할 수 있도록 하는 역할을 하며, 부싱은 고정체와 회전체 사이의 마찰로 인한 마모가 방지되도록 하는 역할을 하는데, 통상적으로 샤프트와 부싱사이에서는 마찰이 심하게 발생되어지므로The shaft serves to allow the rotating body to rotate in a certain position, and the bushing serves to prevent abrasion due to the friction between the fixed body and the rotating body. Is badly generated

그리스(Grease)나 윤활유를 도포하여 유막에 의해 마찰이 감소되어지도록 하고 있다.Grease or lubricant is applied to reduce friction by the oil film.

이러한 윤활유의 유막이 샤프트와 부싱사이에서 항상 고르게 형성되어져만 실제적인 마찰 감소효과를 기대할 수 있으며, 하부 동력 전달체인 언더케리지(Undercarriage)에 대한 성능향상을 기대할 수 있다.The oil film of the lubricating oil is formed evenly between the shaft and the bushing at all times, so that the actual friction reduction effect can be expected, and the performance improvement for the undercarriage, the lower power transmission body, can be expected.

도 1은 종래 기술에 따른 중장비 회전부 및 윤활수단의 일 실시예를 도시한 분리사시도이며, 도 2는 종래 기술에 따른 중장비 회전부 및 윤활수단의 다른 실시예를 도시한 분리사시도로서,1 is an exploded perspective view showing an embodiment of the heavy-duty rotating part and the lubricating means according to the prior art, Figure 2 is an exploded perspective view showing another embodiment of the heavy-duty rotating part and the lubricating means according to the prior art,

종래에는 부싱(2)내부에 끼워져 결합되는 샤프트(1)의 외주면에 그루브(3)를 길이방향으로 길게 형성하거나(도 1참조), 부싱(2)의 내주면에 그루브(3)를 나선방향으로 길게 형성하고 있는데(도 2참조),Conventionally, the groove 3 is formed long in the longitudinal direction on the outer circumferential surface of the shaft 1 to be fitted inside the bushing 2 (see FIG. 1), or the groove 3 is formed in the helical direction on the inner circumferential surface of the bushing 2. It is formed long (see Fig. 2),

이와 같은 종래의 구조에서는 샤프트(1)의 그루브(3) 근처에서는 윤활작용이 비교적 잘 이루어지지만 그루브(3)로 부터 먼 부위에서는 유막이 얇게 형성되어지므로 윤활상태가 만족스럽지 못하게 되는 문제점이 있었으며(도 1의 경우),In such a conventional structure, the lubrication is performed relatively well near the groove 3 of the shaft 1, but the oil film is thinly formed at a part far from the groove 3, so that the lubrication state is not satisfactory ( 1)

회전체인 부싱(2) 내주면에만 그루브(3)가 형성되어져 있으므로 샤프트(1)의 일측단에서 타측단까지 효과적인 윤활작용이 이루어지지 않게 되며, 그루브(3)가 샤프트(1)에 비해 상대적으로 경도가 낮은 부싱(2)내부에만 형성되어져 있으므로 그 수명이 길지 못한 문제점이 있었다.(도 2의 경우)Since the groove 3 is formed only on the inner circumferential surface of the bushing 2 of the rotating chain, effective lubrication is not performed from one end of the shaft 1 to the other end, and the groove 3 is relatively Since the hardness is only formed inside the bushing 2 having low hardness, its life is not long.

본 고안은 상기한 문제점을 해결하기 위한 것으로,The present invention is to solve the above problems,

상대적으로 경도가 높은 샤프트의 외주면에 나선방향으로 길게 그루브를 형성하고 부싱의 내주면상에도 상기 그루브의 반대방향으로 그루브를 형성하거나,Long grooves are formed in a spiral direction on the outer circumferential surface of the relatively hard shaft and grooves are formed on the inner circumferential surface of the bushing in the opposite direction to the grooves,

샤프트의 외주면에 서로 반대방향의 나선형상 그루브를 형성하여, 샤프트와 부싱의 조립시 서로 반대방향의 나선형상 그루브를 형성하게 됨에 따라 그루브로 부터의 거리에 관계없이 균일한 유막이 형성될 수 있도록 하고 샤프트의 일측단에서 타측단까지 효과적인 윤활작용이 이루어지도록 하고 있다.Spiral grooves in opposite directions are formed on the outer circumferential surface of the shaft, so that when the shaft and bushing are assembled, spiral grooves in opposite directions are formed so that a uniform oil film can be formed regardless of the distance from the grooves. Effective lubrication is achieved from one end of the shaft to the other end.

도 1은 종래 기술에 따른 중장비 회전부 및 윤활수단의 일 실시예를 도시한 분리사시도,1 is an exploded perspective view showing an embodiment of the heavy-duty rotating part and the lubricating means according to the prior art,

도 2는 종래 기술에 따른 중장비 회전부 및 윤활수단의 다른 실시예를 도시한 분리사시도,Figure 2 is an exploded perspective view showing another embodiment of the heavy-duty rotating part and the lubricating means according to the prior art,

도 3은 본 고안에 따른 중장비 회전부 및 윤활수단의 도시한 분리사시도,3 is an exploded perspective view of the heavy equipment rotating part and the lubricating means according to the present invention,

도 4는 본 고안에 따른 중장비 회전부 및 윤활수단의 다른 실시예를 도시한 분리사시도.Figure 4 is an exploded perspective view showing another embodiment of the heavy machinery rotating part and the lubrication means according to the present invention.

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

1 ; 샤프트 2 ; 부싱One ; Shaft 2; bushing

3 ; 그루브3; Groove

첨부도면에 의해 본 고안의 구성을 상세히 설명하면 다음과 같다.Referring to the configuration of the present invention by the accompanying drawings in detail as follows.

도 3은 본 고안에 따른 중장비 회전부 및 윤활수단을 도시한 분리사시도로서 상기도면에서 보면,3 is an exploded perspective view showing the heavy-duty rotating part and the lubricating means according to the present invention,

부싱(2)내부에 끼워져 결합되는 샤프트(1)의 외주면에 그루브(3)가 길게 형성되어져 있는 중장비 회전부에서의 윤활수단에 있어서,In the lubrication means of the heavy-duty rotating part, in which the groove 3 is formed long on the outer circumferential surface of the shaft 1 which is fitted inside the bushing 2,

상대적으로 경도가 높은 샤프트(1)의 외주면에는 나선방향의 그루브(3a)가 전길이에 걸쳐 형성되어져 있으며, 상기 부싱(2)의 내주면에는 상기 그루브(3a)의 방향과 반대되는 나선방향의 그루브(3b)가 전길이에 걸쳐 형성되어져 있다.On the outer circumferential surface of the shaft 1 having a relatively high hardness, a spiral groove 3a is formed over the entire length. On the inner circumferential surface of the bushing 2, a groove in a spiral direction opposite to the direction of the groove 3a is formed. (3b) is formed over the whole length.

또한 제4도와 같이 본 고안의 다른 실시예를 나타낸 분리사시도에서 살펴보면 상대적으로 경도가 높은 샤프트(1)의 외주면에 서로 반대방향인 2개의 나선형상 그루브(3c)(3d)가 전길이에 걸쳐 길게 형성되어 있다.In addition, as shown in a separate perspective view showing another embodiment of the present invention as shown in FIG. 4, two spiral grooves 3c and 3d opposite to each other on the outer circumferential surface of the shaft 1 having a relatively high hardness are long over the entire length. Formed.

즉, 샤프트(1)에 대해 부싱(2)이 회전할 시에 상기 그루브들(3a)(3b) 내부에 공급된 오일이 서로 반대방향으로 흐를 수 있도록, 상기 그루브들(3a)(3b),(3c)(3d)의 형상이 서로 반대방향으로 이루어져 있는 것이다.That is, when the bushing 2 rotates with respect to the shaft 1, the grooves 3a and 3b are provided so that the oil supplied inside the grooves 3a and 3b can flow in opposite directions. The shapes of (3c) (3d) are made in opposite directions.

한편, 상기 그루브들(3a)(3b),(3c)(3d)들의 깊이는 상기 부싱(2)과 샤프트(1)사이의 회전부에 충분한 오일이 공급될 수 있을 정도로 구성되어야 하며, 그루브들(3a)(3b),(3c)(3d)내부에서 오일이 원활하게 움직일 수 있도록 하기 위해서는 그루브들이 나선형상으로 제작되는 것이 바람직하다.On the other hand, the depth of the grooves (3a) (3b), (3c) (3d) should be configured such that sufficient oil can be supplied to the rotating portion between the bushing (2) and the shaft (1), grooves ( In order to allow the oil to move smoothly within 3a), 3b, and 3c, 3d, the grooves are preferably manufactured in a spiral shape.

이상과 같이 구성된 본 고안은 다음과 같이 작동한다.The present invention configured as described above operates as follows.

고정체인 샤프트(1)는 회전체인 부싱(2)에 끼워져 결합되어지는데, 상기 부싱(2)의 그루브(3b)와 샤프트(1)의 그루브(3a)가 서로 반대방향의 나선형상으로 형성되어져 있으므로 상기 부싱(2)이 샤프트(1)에 대해 회전운동하는 동안 상기 그루브들(3a)(3b)에서는 오일이 반대방향으로 이동하게 된다.The fixed shaft 1 is fitted to the bushing 2 which is a rotating body. The groove 3b of the bushing 2 and the groove 3a of the shaft 1 are formed in a spiral shape opposite to each other. Therefore, oil is moved in the opposite direction in the grooves 3a and 3b while the bushing 2 rotates about the shaft 1.

따라서, 그루브(3a)(3b),(3c)(3d)로 부터의 거리에 관계없이 균일한 유막이형성될 수 있게되어지며 샤프트의 일측단에서 타측단까지 효과적인 윤활작용이 이루어지게 된다.Therefore, a uniform oil film can be formed regardless of the distances from the grooves 3a, 3b, and 3c and 3d, and effective lubrication is made from one end to the other end of the shaft.

이상에서와 같이 본 고안에서는, 상대적으로 경도가 높은 샤프트(1)의 내부에 나선방향으로 길게 그루브(3a)를 형성하고 부싱(2)의 내주면상에도 상기 그루브(3a)의 반대방향으로 그루브(3b)를 형성함에 따라,As described above, according to the present invention, a groove 3a is formed to be elongated in a spiral direction inside the shaft 1 having a relatively high hardness, and a groove (in the opposite direction of the groove 3a) is formed on the inner circumferential surface of the bushing 2. As 3b) is formed,

그루브로 부터의 거리에 관계없이 균일한 유막이 형성될 수 있도록 하고 샤프트(1)의 일측단에서 타측단까지 효과적인 윤활작용이 이루어지도록 하고 있다.Irrespective of the distance from the groove, a uniform oil film can be formed and effective lubrication can be made from one end to the other end of the shaft 1.

Claims (1)

내주면에 그루브(3b)가 나선방향으로 길게 형성되어진 부싱(2)과 이에 내접하여 회전하는 사프트(1)로 구성되어진 중장비 회전부에서의 윤활수단에 있어서,In the lubrication means in the heavy machinery rotating part consisting of a bushing (2) in which a groove (3b) is formed in a spiral direction on the inner circumferential surface and a shaft (1) rotating inscribed thereto. 상대적으로 경도가 높은 샤프트(1)의 외주면에는 나선방향의 그루브(3a)가 전 길이에 걸쳐 형성되어져 있으며, 상기 그루브(3a)는 부싱(2)의 내주면에 형성된 그루브(3b)의 방향과는 반대되는 나선방향으로 전 길이에 걸쳐 형성되어져 있는 것을 특징으로 하는 중장비 회전부에서의 윤활수단.On the outer circumferential surface of the shaft 1 having a relatively high hardness, spiral grooves 3a are formed over the entire length, and the grooves 3a are different from the direction of the grooves 3b formed on the inner circumferential surface of the bushing 2. Lubricating means in the heavy machinery rotation, characterized in that formed over the entire length in the opposite spiral direction.
KR2019980009435U 1998-06-03 1998-06-03 Lubrication Means in Heavy Machinery Rotation Expired - Fee Related KR200335610Y1 (en)

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KR200335610Y1 true KR200335610Y1 (en) 2004-03-31

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