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KR19990030219U - Drive pulleys for continuously variable transmissions for two-wheeled vehicles - Google Patents

Drive pulleys for continuously variable transmissions for two-wheeled vehicles Download PDF

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Publication number
KR19990030219U
KR19990030219U KR2019970042893U KR19970042893U KR19990030219U KR 19990030219 U KR19990030219 U KR 19990030219U KR 2019970042893 U KR2019970042893 U KR 2019970042893U KR 19970042893 U KR19970042893 U KR 19970042893U KR 19990030219 U KR19990030219 U KR 19990030219U
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South Korea
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pulley
support
fixed
continuously variable
crankshaft
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KR2019970042893U
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KR200215278Y1 (en
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박진건
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배명진
대림자동차공업 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
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32Friction members
    • F16H55/36Pulleys
    • 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
    • F16H2057/0056Mounting parts arranged in special position or by special sequence, e.g. for keeping particular parts in his position during assembly

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

본 고안은 이륜 자동차용 무단 변속기의 구동 풀리에 관한 것이며, 상세하게는 무단 변속기의 구동 풀리중 이동 풀리의 원심추 지지구조에 관한 것으로서, 구동 풀리의 최대 변속구간 근처에서 원심추가 이동 풀리의 회전방향으로 기울어짐이 없어 방사방향으로 정확하게 이동될 수 있도록 한 것이다.The present invention relates to a drive pulley of a continuously variable transmission for a two-wheeled vehicle, and more particularly, to a centrifugal support structure of a moving pulley among the driving pulleys of a continuously variable transmission, wherein the rotational direction of the centrifugal additional movement pulley near the maximum transmission section of the driving pulley. There is no inclination so that it can be accurately moved in the radial direction.

본 고안은 크랭크 샤프트(1)의 선단에 고정 풀리(2)를 고정하고, 크랭크 샤프트(2)에 고정한 보스(3)에 이동 풀리(4)의 지지부(4')를 슬라이딩 할 수 있게 설치하여 고정 풀리(2)와 이동 풀리(4) 사이에 벨트홈(5)을 형성하며, 상기 이동 풀리(4)의 벨트홈(5)반대측에 경사 안내면(6)을 형성함과 동시에 이동 풀리(4)의 외주연에 지지돌기(7)를 돌출되게 형성하며, 상기 지지부(4')와 경사 안내면(6)에 리브(8)(8')를 방사상으로 형성하여 리브 사이에 원심추(9)를 삽입하고, 상기 보스(3)에 램프 플레이트(10)를 그 외주연과 지지돌기(7) 사이에 일정간극이 형성되게 고정하며, 상기 리브(8)의 선단과 지지돌기(7)에 안내편(20)(20')을 램프 플레이트(10)의 외주연에 근접되게 일체로 형성하여서 된 것이다.The present invention fixes the fixed pulley (2) to the front end of the crankshaft (1), it is installed so as to slide the support (4 ') of the movable pulley (4) to the boss (3) fixed to the crankshaft (2) A belt groove 5 is formed between the fixed pulley 2 and the moving pulley 4, and an inclined guide surface 6 is formed on the opposite side of the belt groove 5 of the moving pulley 4, and at the same time, the moving pulley 4 The support protrusion 7 is formed to protrude on the outer circumference of the side), and ribs 8 and 8 'are radially formed on the support portion 4' and the inclined guide surface 6 so as to form a centrifugal weight 9 between the ribs. Inserting and fixing the lamp plate 10 to the boss 3 so that a predetermined gap is formed between the outer circumference and the support protrusion 7, and guides the front end of the rib 8 and the support protrusion 7. The pieces 20, 20 'are formed integrally with the outer periphery of the lamp plate 10 integrally.

Description

이륜 자동차용 무단 변속기의 구동 풀리Drive pulleys for continuously variable transmissions for two-wheeled vehicles

본 고안은 이륜 자동차용 무단 변속기의 구동 풀리에 관한 것이며, 상세하게는 무단 변속기의 구동 풀리중 이동 풀리의 원심추 지지구조에 관한 것이다.The present invention relates to a drive pulley of a continuously variable transmission for a two-wheeled vehicle, and more particularly, to a centrifugal support structure of a moving pulley among the driving pulleys of a continuously variable transmission.

주지하는 바와 같이 이륜 자동차는 크랭크 샤프트에 구동 풀리를, 트랜스밋숀의 구동축에 종동 풀리를 설치하여 구동 풀리와 종동 풀리를 고무벨트로 연결하고, 구동 풀리 및 종동 풀리의 이동 풀리를 축방향으로 이동시켜 벨트홈이 넓어지거나 좁아지게 하므로서 변속을 하는 고무벨트식 무단 변속기가 널리 사용되고 있다.As is well known, two-wheeled vehicles have driven pulleys on the crankshaft and driven pulleys on the drive shaft of the transmission, connecting the driving pulley and the driven pulley with rubber belts, and moving the driving pulley and the driven pulley in the axial direction. Rubber belt type continuously variable transmissions are widely used to shift gears by widening or narrowing belt grooves.

종래의 구동 풀리는 도 3에 도시한 바와 같이 크랭크 샤프트(1)의 선단에 고정 풀리(2)를 고정하고, 크랭크 샤프트(2)에 고정한 보스(3)에 이동 풀리(4)의 지지부(4')를 슬라이딩 할 수 있게 설치하여 고정 풀리(2)와 이동 풀리(4) 사이에 벨트홈(5)을 형성하며, 상기 이동 풀리(4)의 벨트홈(5) 반대측에 경사 안내면(6)을 형성함과 동시에 이동 풀리(4)의 외주연에 지지돌기(7)를 축방향으로 돌출되게 형성하며, 상기 지지부(4')와 경사 안내면(6)에 리브(8)(8')를 방사상으로 형성하여 리브 사이에 원심추(9)를 삽입하고, 상기 보스(3)에 램프 플레이트(10)를 그 외주연과 지지돌기(7) 사이에 일정간극이 형성되게 고정한 것이다.As shown in FIG. 3, the conventional driving pulley fixes the fixed pulley 2 at the tip of the crankshaft 1, and supports 4 'of the movable pulley 4 to the boss 3 fixed to the crankshaft 2. As shown in FIG. ) To be slid to form a belt groove 5 between the fixed pulley (2) and the moving pulley (4), the inclined guide surface (6) on the opposite side of the belt groove (5) of the moving pulley (4) At the same time, the support protrusion 7 is formed to protrude in the axial direction on the outer periphery of the movable pulley 4, and the ribs 8 and 8 'are radially formed on the support portion 4' and the inclined guide surface 6. A centrifugal weight (9) is inserted between the ribs, and the lamp plate (10) is fixed to the boss (3) such that a predetermined gap is formed between the outer circumference and the support protrusion (7).

미설명 부호 11은 벨트이고, 12는 킥 스타트 래킷이다.Reference numeral 11 is a belt and 12 is a kick start racket.

상기한 구동 풀리는 크랭크 샤프트(1)의 회전속도가 증가하면 즉 원심력이 커지면 원심추(9)가 경사 안내면(6)을 따라 원주방향으로 이동함에 따라 이동 풀리(4)가 고정 풀리(2)측으로 슬라이딩 되어 벨트홈(5)의 폭을 좁히므로서 구동 풀리의 유효직경을 크게하고, 반대로 상기 보다 원심력이 작아지면 벨트 홈(5)의 폭이 넓어지게 되어 구동 풀리의 유효직경을 작게 하므로서 무단 변속이 이루어지며, 상기와 같이 원심추(9)가 원주방향으로 이동되거나 중심부로 이동될 때 원심추(9)의 양측면은 리브(8)(8')에 지지되며, 원심력의 최대 구간에서는 원심추(9)는 리브(8)(8') 지지돌기(7), 및 램프 플레이트(10)에 지지되는 것이다.The above-mentioned driving pulley increases the rotation speed of the crankshaft 1, that is, when the centrifugal force increases, the moving pulley 4 moves toward the fixed pulley 2 as the centrifugal weight 9 moves circumferentially along the inclined guide surface 6. Sliding narrows the width of the belt groove 5 to increase the effective diameter of the drive pulley, on the contrary, if the centrifugal force becomes smaller than the above, the width of the belt groove 5 becomes wider and the effective diameter of the drive pulley is reduced continuously. When the centrifugal weight (9) is moved in the circumferential direction or the center as described above, both sides of the centrifugal weight (9) is supported by the ribs (8) (8 '), the centrifugal weight in the maximum section of the centrifugal force (9) is supported by the ribs (8) and (8 ') support protrusion (7) and the lamp plate (10).

그러나 상기한 구동 풀리의 원심추(9)는 원심력이 작은 구간에서는 원주면의 일부는 경사 안내면(6)에 양측면은 그 전체가 리브(8)에 지지되므로서 기울어짐이 없이 원주방향으로 이동되나 원심력의 최대구간 근처에 이르면 원주면의 일부가 경사 안내면(6) 및 지지돌기(7)에 지지되고, 양측면의 일부반이 리브(8)(8')에 지지되므로서 원심추(9)가 이동 풀리(4)의 회전방향으로 기울어지는 현상이 발생하고 최대 변속 구간에 도달되면 원주면이 램프 플레이트(10)의 외주연에 지지되면서 기울어짐이 해소되는 것이다.However, the centrifugal weight (9) of the driving pulley is a portion of the circumferential surface in the section with a small centrifugal force is moved to the circumferential direction without being inclined because both sides are supported on the rib (8) as a whole When it reaches near the maximum section of the centrifugal force, a part of the circumferential surface is supported by the inclined guide surface 6 and the support protrusion 7, and some half of both sides are supported by the ribs 8, 8 ′, so that the centrifugal weight 9 is When the phenomenon occurs that the inclination in the rotational direction of the moving pulley 4 reaches the maximum speed change section, the circumferential surface is supported on the outer periphery of the lamp plate 10 to eliminate the inclination.

상기와 같이 원심추가 최대 변속 구간 근처에서 이동 풀리(4)의 회전방향으로 기울어지면 원심추(9)의 원주면과 양측면이 편마모 되므로서 불완전 변속이 이루어지고 소음이 발생되는 문제점이 있는 것이다.As described above, when the centrifugal weight is inclined in the rotational direction of the moving pulley 4 near the maximum speed shifting section, the circumferential surface and both sides of the centrifugal weight 9 are unevenly worn, so that an incomplete shift is made and noise is generated.

본 고안은 상기한 문제점을 시정하여, 구동 풀리의 최대 변속 구간 근처에서 원심추가 이동 풀리의 회전 방향으로 기울어짐이 없이 방사방향으로 정확하게 이동될 수있도록 한 이륜 자동차용 무단 변속기의 구동 풀리를 제공하는 것을 목적으로 한다.The present invention corrects the above problems, and provides a drive pulley of a continuously variable transmission for a two-wheeled vehicle that can be moved accurately in the radial direction without tilting in the rotational direction of the centrifugal movement pulley near the maximum shift section of the drive pulley. For the purpose of

상기한 목적을 달성하기 위하여, 본 고안은 크랭크 샤프트의 선단에 고정 풀리를 고정하고, 크랭크 샤프트에 고정한 보스에 이동 풀리의 지지부를 슬라이딩 할 수 있게 설치하며, 상기 이동 풀리에 경사 안내면을 형성함과 동시에 외주연에 지지돌기를 돌출되게 형성하며, 상기 지지부와 경사 안내면에 리브를 방사상으로 설치하여 리브 사이에 원심추를 삽입하고, 상기 보스에 램프 플레이트를 그 외주연과 지지돌기 사이에 일정간극이 형성되게 고정한 것에 있어서, 상기 리브의 선단과 지지돌기에 안내편을 램프 플레이트의 외주연에 근접되게 일체로 형성하여서 된 것이다.In order to achieve the above object, the present invention is fixed to the front end of the crankshaft fixed pulley, installed on the boss fixed to the crankshaft so as to slide the support of the moving pulley, and to form an inclined guide surface on the moving pulley and At the same time, the support protrusion is formed on the outer periphery, the ribs are radially installed on the support and the inclined guide surface to insert centrifugal weights between the ribs, and a ramp is placed between the outer periphery and the support protrusions on the boss. In the fixed form, the guide piece is formed integrally with the outer periphery of the lamp plate at the tip and the support projection of the rib.

도 1은 본 고안의 실시예의 단면도,1 is a cross-sectional view of an embodiment of the present invention,

도 2는 본 고안의 실시예의 이동 풀리의 사시도.Figure 2 is a perspective view of the moving pulley of the embodiment of the present invention.

도 3은 종래의 것의 단면도.3 is a cross-sectional view of a conventional one.

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

1 : 크랭크 샤프트2 : 고정 풀리1: crankshaft 2: fixed pulley

4 : 이동 풀리6 : 경사 안내면4: moving pulley 6: inclined guide surface

7 : 지지돌기8,8' : 리브7: support protrusion 8,8 ': rib

9 : 원심추20,20' : 안내편9: centrifugal weight 20,20 ': guide

본 고안은 도 1 및 도 2에 도시한 바와 같이 크랭크 샤프트(1)의 선단에 고정 풀리(2)를 고정하고, 크랭크 샤프트(2)에 고정한 보스(3)에 이동 풀리(4)의 지지부(4')를 슬라이딩 할 수 있게 설치하여 고정 풀리(2)와 이동 풀리(4) 사이에 벨트홈(5)을 형성하며, 상기 이동 풀리(4)의 벨트홈(5) 반대측에 경사 안내면(6)을 형성함과 동시에 이동 풀리(4)의 외주연에 지지돌기(7)를 돌출되게 형성하며, 상기 지지부(4')와 경사 안내면(6)에 리브(8)(8')를 방사상으로 형성하여 리브 사이에 원심추(9)를 삽입하고, 상기 보스(3)에 램프 플레이트(10)를 그 외주연과 지지돌기(7) 사이에 일정간극이 형성되게 고정하며, 상기 리브(8)의 선단과 지지돌기(7)에 안내편(20)(20')을 램프 플레이트(10)의 외주연에 근접되게 일체로 형성하여서된 것이다.The present invention, as shown in Figs. 1 and 2, the fixing pulley (2) is fixed to the front end of the crankshaft (1), the support portion of the moving pulley (4) to the boss (3) fixed to the crankshaft 4 ') to be slidable to form a belt groove 5 between the fixed pulley 2 and the moving pulley 4, the inclined guide surface (6) on the opposite side of the belt groove (5) of the moving pulley (4) ) And at the same time to protrude the support projection (7) on the outer periphery of the moving pulley (4), the ribs (8) (8 ') on the support portion (4') and the inclined guide surface (6) radially Forming a centrifugal weight (9) between the ribs, and fixing the lamp plate (10) to the boss (3) so that a predetermined gap is formed between the outer periphery and the support projection (7), and the rib (8) The guide pieces 20, 20 'on the front end of the support projections 7 are integrally formed to be close to the outer periphery of the lamp plate 10.

미설명 부호 11은 벨트이고, 12는 킥 스타트 래칫이다.Reference numeral 11 is a belt and 12 is a kick start ratchet.

이상과 같은 본 고안은 종래의 구동풀리와 같이 크랭크 샤프트(1)의 회전속도의 증감 즉 원심력의 대소에 따라 원심추(9)가 경사 안내면(6)과 리브(8)(8')에 지지되면서 이동 풀리(4)의 원주방향 및 중심부로 이동함에 따라 이동 풀리(4)의 지지부(4')가 보스(3)를 슬라이딩 하여 벨트홈(5)의 폭을 좁히거나 넓히므로서 구동 풀리의 유효직경을 크게 하거나 작게하여 무단 변속이 이루어지는 것이다.According to the present invention as described above, the centrifugal weight 9 is supported on the inclined guide surface 6 and the ribs 8 and 8 'according to the increase or decrease of the rotational speed of the crankshaft 1, that is, the magnitude of the centrifugal force, as in the conventional driving pulley. While moving to the circumferential direction and the center of the moving pulley 4, the support 4 'of the moving pulley 4 slides the boss 3 to narrow or widen the width of the belt groove 5, Stepless speed change is made by increasing or decreasing the effective diameter.

상기와 같이 무단 변속될 때 원심력이 증대되어 원심추(9)가 최대 변속구간 근처에 도달하면 원주면은 경사 안내면(6)과 지지돌기(7)에 지지되고 그 양측면의 180°이상이 리브(8)(8')와 안내편(20)(20')에 지지되므로서 원심추(9)가 이동 풀리(4)의 회전방향으로 기울어짐이 없이 방사방향으로 정확하게 이동되면서 램프 플레이트(10)에 지지되기 때문에 원심추(9)의 원주면과 양측면의 편마모가 방지되며, 원심추(9)의 편마모가 방지되면 변속이 정확하게 이루어지고 소음이 발생되지 않게 되는 것이다.As described above, if the centrifugal force is increased when the speed change is continuously performed, and the centrifugal weight 9 reaches near the maximum speed change section, the circumferential surface is supported by the inclined guide surface 6 and the support protrusion 7 and at least 180 ° of both sides thereof is rib ( 8) The lamp plate 10 is supported by the 8 'and the guide pieces 20 and 20' while the centrifugal weight 9 is accurately moved in the radial direction without being inclined in the rotational direction of the movable pulley 4. Since it is supported on the circumferential surface and both sides of the centrifugal weight (9) is prevented, the wear of the centrifugal weight (9) is prevented, the shift is made accurately and noise is not generated.

이상과 같이 본 고안은 이동 풀리의 리브의 선단과 지지돌기에 안내편을 형성하여 구동 풀리의 최대 변속 구간근처에서 원심추가 이동 풀리의 회전방향으로 기울어짐이 발생하지 않도록 하였기 때문에 원심추의 편마모가 방지되어서 변속이 정확하게 이루어지고, 소음이 발생되지 않게 되는 것이다.As described above, the present invention forms guide pieces at the tip and support protrusion of the rib of the moving pulley so that the centrifugal weight does not incline in the rotational direction of the moving pulley near the maximum shift section of the driving pulley. It is prevented so that shifting is made accurately and noise is not generated.

Claims (1)

크랭크 샤프트의 선단에 고정 풀리를 고정하고, 크랭크 샤프트에 고정한 보스에 이동 풀리의 지지부를 슬라이딩 할 수 있게 설치하며, 상기 이동 풀리에 경사 안내면을 형성함과 동시에 외주연에 지지돌기를 축방향으로 돌출되게 형성하며, 상기 지지부와 경사 안내면에 리브를 방사상으로 설치하여 리브 사이에 원심추를 삽입하고, 상기 보스에 램프 플레이트를 그 외주연과 지지돌기 사이에 일정간극이 형성되게 고정한 것에 있어서, 상기 리브의 선단과 지지돌기에 안내편을 램프 플레이트의 외주연에 근접되게 일체로 형성하여서 된 이륜 자동차용 무단 변속기의 구동풀리.The fixing pulley is fixed to the front end of the crankshaft, and the support part of the moving pulley is slidably installed on the boss fixed to the crankshaft. The inclined guide surface is formed on the moving pulley and the support protrusion protrudes in the circumferential direction at the same time. The ribs are radially installed on the support and the inclined guide surface to insert centrifugal weights between the ribs, and the lamp plate is fixed to the boss so that a predetermined gap is formed between the outer circumference and the support protrusion. A driving pulley for a continuously variable transmission for a two-wheeled vehicle formed by integrally forming a guide piece at the tip and a support protrusion of the lamp plate so as to be adjacent to the outer circumference of the lamp plate.
KR2019970042893U 1997-12-30 1997-12-30 Drive pulleys for continuously variable transmissions for two-wheeled vehicles Expired - Fee Related KR200215278Y1 (en)

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KR2019970042893U KR200215278Y1 (en) 1997-12-30 1997-12-30 Drive pulleys for continuously variable transmissions for two-wheeled vehicles

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KR2019970042893U KR200215278Y1 (en) 1997-12-30 1997-12-30 Drive pulleys for continuously variable transmissions for two-wheeled vehicles

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