KR0128639Y1 - Differential pinion shaft with oil passage - Google Patents

Differential pinion shaft with oil passage Download PDF

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Publication number
KR0128639Y1
KR0128639Y1 KR2019950039920U KR19950039920U KR0128639Y1 KR 0128639 Y1 KR0128639 Y1 KR 0128639Y1 KR 2019950039920 U KR2019950039920 U KR 2019950039920U KR 19950039920 U KR19950039920 U KR 19950039920U KR 0128639 Y1 KR0128639 Y1 KR 0128639Y1
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KR
South Korea
Prior art keywords
differential pinion
differential
oil passage
pinion shaft
oil
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KR2019950039920U
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Korean (ko)
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KR970042418U (en
Inventor
박세경
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김태구
대우자동차주식회사
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Priority to KR2019950039920U priority Critical patent/KR0128639Y1/en
Publication of KR970042418U publication Critical patent/KR970042418U/en
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Publication of KR0128639Y1 publication Critical patent/KR0128639Y1/en

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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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00Shafts; Axles; Cranks; Eccentrics
    • F16C3/02Shafts; Axles
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/01Parts of vehicles in general
    • F16C2326/06Drive shafts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

본 고안은 오일통로부가 형성된 차동 피니언 축에 관한 것으로, 상기 차동 피니언 축(100)의 양단에는 서로 소정의 간격을 가진 나선형의 오일홈(111)이 복수개로 형성되고, 이 오일홈(111) 사이에 복수개의 오일통로공(112)이 천공된 오일통로부(110)가 형성되는 것인바, 본 고안에 의하면 차동장치의 작동시 좌,우로 회동하는 차동 피니언에 의해 오일이 오일통로부에서 강제 순환 되도록 하므로써, 상기 차동 피니언 축의 양단 접촉면의 마모를 줄일 수 있고, 상기 차동 피니언이 원활하게 회동될 수 있도록 하여 부품의 수명을 연장할 수 있는 유용한 효과를 갖는다.The present invention relates to a differential pinion shaft formed with an oil passage, wherein both ends of the differential pinion shaft 100 are formed with a plurality of spiral oil grooves 111 having a predetermined distance from each other, between the oil grooves 111 The oil passage part 110 in which the plurality of oil passage holes 112 are formed in the bar is formed. According to the present invention, oil is forcedly circulated in the oil passage part by a differential pinion that rotates left and right when the differential device is operated. By doing so, it is possible to reduce wear of the contact surfaces at both ends of the differential pinion shaft and to allow the differential pinion to be rotated smoothly, which has a useful effect of extending the life of the component.

Description

오일통로부가 형성된 차동 피니언 축Differential pinion shaft with oil passage

제1도는 일반적인 자동차 차동장치의 구성을 보인 단면도.1 is a cross-sectional view showing the configuration of a typical automotive differential.

제2도는 본 고안에 따른 차동 피니언 축의 사시도.2 is a perspective view of a differential pinion shaft according to the present invention.

제3도는 제2도의 차동 피니언 축의 설치상태를 도시한 단면도.3 is a cross-sectional view showing the installation state of the differential pinion shaft of FIG.

제4도는 제3도의 요부 확대 단면도이다.4 is an enlarged cross-sectional view of the main portion of FIG.

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

100 : 차동 피니언 축 110 : 오일통로부100: differential pinion shaft 110: oil passage portion

111 : 오일홈 112 : 오일통로공111: oil groove 112: oil passage hole

200 : 차동 피니언200: differential pinion

본 고안은 자동차 차동장치의 차동 피니언에 축설되는 차동 피니언 축의 양단에 오일통로부를 형성시켜 차동 피니언이 원활하게 회동하고, 이 차동 피니언의 회동에 따른 차동 피니언 축의 마모를 줄일 수 있도록 한 오일통로부가 형성된 차동 피니언 축에 관한 것이다.The present invention forms oil passages at both ends of the differential pinion shaft which is installed in the differential pinion of the automobile differential, so that the differential pinion rotates smoothly, and the oil passage portion is formed to reduce the wear of the differential pinion shaft due to the rotation of the differential pinion. Relates to a differential pinion axis.

일반적으로 자동차의 차동장치는 4개의 베벨기어가 사방으로 설치되어 자동차가 커브길을 선회할때 내,외측(여기서 자동차가 좌회전할때는 운전자를 기준으로 볼때 좌측바퀴를 내측바퀴라 하고, 우측바퀴를 외측바퀴라 약칭하며, 우회전할때는 그 반대로 칭함)바퀴의 회전수가 변화할 수 있도록 한 것으로, 자동차의 선회시 노면에서 받는 회전 저항을 외측바퀴보다 내측바퀴가 많이 받게 되고, 이 회전 저항을 많이 받는 바퀴가 감속 및 회전수가 감소되도록 하여 내,외측의 바퀴가 미끄러지지 않도록 한 것이다.In general, four bevel gears are installed on all sides of the car, so that when the car turns around the curve, the inside and the outside (where the left wheel is called the inner wheel when the car turns left, the inner wheel is called, and the right wheel is the outside) It is abbreviated as wheels, and vice versa when turning right), and the number of revolutions of the wheels can be changed, and the inner wheel receives more rotational resistance than the outer wheels when turning the car. The deceleration and rotational speed are reduced so that the inner and outer wheels do not slip.

종래의 차동장치는 제1도에 도시한 바와 같이, 엔진의 구동축(2)과 일체로 된 피니언(3)이 링 기어(4)의 기어 이와 치합되고, 상기 링 기어(4)에 차동 기어 케이스(5)가 체결되며, 상기 차동 기어 케이스(5) 내부에 서로 대응되게 복수의 차동 피니언(6)이 차동 피니언 축(7)에 끼워지고, 상기 차동 피니언(6)의 기어 이와 치합되는 복수의 사이드 기어(8)가 수직양측으로 설치되어 이 사이드 기어(8)에 액슬 축(9)이 수평방향으로 끼워져 회동하는 구조로 되어 있다.In the conventional differential device, as shown in FIG. 1, the pinion 3 integral with the drive shaft 2 of the engine is engaged with the gear of the ring gear 4, and the differential gear case is connected to the ring gear 4 as shown in FIG. (5) is fastened, a plurality of differential pinions (6) are fitted to the differential pinion shaft (7) to correspond to each other in the differential gear case (5), and a plurality of gears that are meshed with the gears of the differential pinions (6) The side gear 8 is provided on both vertical sides, and the axle shaft 9 is fitted to the side gear 8 in a horizontal direction to rotate.

종래에는 차동장치(1)의 동력전달 순서가 엔진의 구동력이 구동축(2)에서 링 기어(3)로 전달되고, 상기 링 기어(3)에 체결된 차동 기어 케이스(4)가 회동되게 전달되며, 이 회동에 따라 상기 차동 기어 케이스(5) 내부에 설치된 복수의 차동 피니언(6)과 사이드 기어(8)에 구동력이 전달되어 상기 사이드 기어(8)에 끼워진 양측의 액슬 축(9)으로 엔진의 구동력이 차등되게 전달되는 순서로 되어 있었다.In the conventional power transmission sequence of the differential device 1, the driving force of the engine is transmitted from the drive shaft 2 to the ring gear 3, and the differential gear case 4 fastened to the ring gear 3 is transmitted to be rotated. According to this rotation, a driving force is transmitted to a plurality of differential pinions 6 and side gears 8 installed in the differential gear case 5, and the engine is driven to both axle shafts 9 fitted to the side gears 8. The driving force of was in order to be differentially transmitted.

이처럼 상기 차동 피니언(6)은 고정되어 있는 차동 피니언 축(7)의 둘레로 회동됨에 따라, 상기 차동 피니언(6)과 접촉되는 차동 피니언 축(7)의 양단에 마모가 발생하여 부품수명이 짧아지고, 이 마찰에 의해 차동 피니언(6)의 회동이 원활하지 못한 문제점이 있었다.As the differential pinion 6 is rotated around the fixed differential pinion shaft 7, the wear occurs on both ends of the differential pinion shaft 7 in contact with the differential pinion 6, resulting in short component life. There was a problem that the rotation of the differential pinion 6 was not smooth due to this friction.

본 고안은 상기한 제반 문제점을 감안하여 안출된 것으로, 본 고안의 목적은 상기 차동 피니언이 원활하게 회동되도록 하고, 이 회동되는 차동 피니언과 접촉되는 차동 피니언 축의 양단이 마찰되어 마모되는 것을 방지할 수 있는 수단을 제공하는 데 있는 것이다.The present invention has been devised in view of the above-mentioned problems, and an object of the present invention is to allow the differential pinion to rotate smoothly and to prevent both ends of the differential pinion shaft contacting the rotated differential pinion from friction and wear. It is to provide the means.

본 고안은 상기한 목적을 달성하기 위하여 차동 피니언과 맞닿는 차동 피니언 축의 양단에 오일홈과 오일통로공으로 된 오일통로부를 형성시켜 상기 차동 피니언 축의 양단에 오일이 순환되도록 한 오일통로부가 형성되는 것을 특징으로 한다.The present invention is characterized in that the oil passage portion is formed in both ends of the differential pinion shaft to form an oil passage portion of the oil groove and the oil passage hole at both ends of the differential pinion shaft in contact with the differential pinion to achieve the above object. do.

이하, 첨부된 도면에 의거하여 본 고안의 구성 및 작용 효과를 상세하게 설명하기로 한다.Hereinafter, on the basis of the accompanying drawings will be described in detail the configuration and effect of the present invention.

본 고안은 제2도 내지 제4도에 도시한 바와 같이, 자동차 차동장치(10)의 차동 피니언(200)에 축설되는 차동 피니언 축(100)의 접촉되는 양단에는 나선형의 오일홈(111)이 복수개로 형성되고, 이 오일홈(111) 사이에 복수개의 오일통로공(112)가 소정크기로 천공된 오일통로부(110)가 형성되는 구조로 되어 있다.According to the present invention, as shown in FIGS. 2 to 4, a spiral oil groove 111 is provided at both ends of the differential pinion shaft 100 which is arranged in the differential pinion 200 of the vehicle differential apparatus 10. A plurality of oil passages 111 are formed between the oil grooves 111 and a plurality of oil passage holes 112 are formed in a predetermined size.

좀더 구체적으로 설명하자면, 오일통로부(110)는 차동 피니언 축(100)의 양단에 복수개의 오일홈(111)이 소정깊이로 서로 소정의 간격을 가지도록 나선형으로 형성되고, 이 오일홈(111)들의 주위에 오일이 차동피니언(200)의 회동에 따라 강제 순환되도록 소정 크기로 복수개의 오일통로공(112)이 천공되는 구조로 형성된 것이다.More specifically, the oil passage part 110 is formed in a spiral shape so that a plurality of oil grooves 111 are formed at both ends of the differential pinion shaft 100 at predetermined depths and have a predetermined distance from each other. The oil is formed in a structure in which a plurality of oil passage holes 112 are drilled to a predetermined size so that oil is forcedly circulated according to the rotation of the differential pinion 200.

이와같이 구성된 본 고안은 자동차의 주행시 엔진에서 발생되는 구동력이 링 기어(300) 및 차동 기어 케이스(400)에 전달되고, 그 구동력에 의해 차동 피니언(200)이 차동 피니언 축(100)의 둘레를 좌,우로 회동함에 따라, 자동차 차동장치(10)의 내부에 들어있는 오일(여기서는 미션오일을 가리킴)이 상기 차동 피니언 축(100)의 양단에 형성되어 있는 오일통로부(11)에 의해 오일이 강제 순환되어 차동 피니언(200)과 차동 피니언 축(100)의 마찰에 따른 마모를 감소시킬 수 있는 것이다.According to the present invention configured as described above, the driving force generated in the engine while driving the vehicle is transmitted to the ring gear 300 and the differential gear case 400, and the differential pinion 200 is left around the differential pinion shaft 100 by the driving force. As the vehicle rotates to the right, the oil is forced by the oil passage part 11 formed in both ends of the differential pinion shaft 100 (in this case, the mission oil) contained in the vehicle differential apparatus 10. It is circulated to reduce the wear caused by the friction between the differential pinion 200 and the differential pinion shaft 100.

즉, 본 고안의 차동 피니언 축(100)은 차동장치(10)내의 오일이 상기 오일통로부(110)의 오일통로공(112)으로 토출되어 나선형의 오일홈(111)의 결을 따라 차동 피니언(200)과 마찰되는 차동 피니언 축(100)의 양단에 강제 순환되도록 한 것이다.That is, in the differential pinion shaft 100 of the present invention, the oil in the differential device 10 is discharged into the oil passage hole 112 of the oil passage part 110 so that the differential pinion along the grain of the oil groove 111 of the spiral. Forced circulation at both ends of the differential pinion shaft 100 in friction with (200).

이상 설명한 바와 같이, 본 고안은 차동 피니언과 접촉되는 차동 피니언 축의 양단 접촉면에 복수개의 나선형으로 형성된 오일홈과 소정크기로 천공된 오일통로공으로 된 오일통로부를 형성시켜 상기 차동 피니언의 좌,우 회동함에 따라 오일이 강제 순환되게 하여 차동 피니언 축의 양단에 오일이 원활하게 공급되도록 하므로써, 상기 차동 피니언 축의 양단 접촉면에 발생되는 마찰을 감소시켜 부품의 마모를 줄일 수 있고, 상기 차동 피니언이 원활하게 회동되도록 하여 부품의 수명을 연장할 수 있는 유용한 효과를 갖는다.As described above, the present invention forms an oil passage portion consisting of a plurality of spirally formed oil grooves and oil passage holes drilled to a predetermined size on the contact surfaces of both ends of the differential pinion shaft in contact with the differential pinion. Accordingly, the oil is forcedly circulated so that oil can be smoothly supplied to both ends of the differential pinion shaft, thereby reducing friction caused by the contact surfaces at both ends of the differential pinion shaft, thereby reducing wear of the parts, and allowing the differential pinion to rotate smoothly. It has a useful effect of extending the life of the part.

Claims (1)

자동차 차동장치의 차동 기어 케이스 내부에 설치되는 복수개의 차동 피니언에 축설되는 차동 피니언 축에 있어서, 상기 차동 피니언(200)과 접촉되는 차동 피니언 축(100)의 양단에는 서로 소정의 간격을 가진 복수개의 오일홈(111)이 나선형으로 형성되고, 이 오일홈(111) 사이에 복수개의 오일통로공(112)이 천공된 오일통로부(110)가 형성되는 것을 특징으로 하는 오일통로부가 형성된 차동 피니언 축.In a differential pinion shaft arranged in a plurality of differential pinions installed inside a differential gear case of a vehicle differential apparatus, a plurality of ends having a predetermined distance from each other at both ends of the differential pinion shaft 100 in contact with the differential pinion 200. The oil pin 111 is formed in a spiral shape, the oil pin portion shaft is formed, characterized in that the oil passage portion 110 is formed between the plurality of oil passage holes 112 is formed between the oil groove 111 .
KR2019950039920U 1995-12-12 1995-12-12 Differential pinion shaft with oil passage KR0128639Y1 (en)

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KR2019950039920U KR0128639Y1 (en) 1995-12-12 1995-12-12 Differential pinion shaft with oil passage

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Application Number Priority Date Filing Date Title
KR2019950039920U KR0128639Y1 (en) 1995-12-12 1995-12-12 Differential pinion shaft with oil passage

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KR970042418U KR970042418U (en) 1997-07-29
KR0128639Y1 true KR0128639Y1 (en) 1998-12-01

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