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KR100828593B1 - Auto Transmission Having Improved Oil-discharging Path Structure for Clutch Piston - Google Patents

Auto Transmission Having Improved Oil-discharging Path Structure for Clutch Piston Download PDF

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Publication number
KR100828593B1
KR100828593B1 KR1020060051521A KR20060051521A KR100828593B1 KR 100828593 B1 KR100828593 B1 KR 100828593B1 KR 1020060051521 A KR1020060051521 A KR 1020060051521A KR 20060051521 A KR20060051521 A KR 20060051521A KR 100828593 B1 KR100828593 B1 KR 100828593B1
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South Korea
Prior art keywords
piston
clutch
clutch piston
fluid
discharge passage
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KR1020060051521A
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Korean (ko)
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KR20070117353A (en
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서강수
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현대자동차주식회사
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Priority to KR1020060051521A priority Critical patent/KR100828593B1/en
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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/14—Fluid pressure control
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
    • F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
    • F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

본 발명은 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기에 관한 것이다. 그 자동변속기는, 피스톤 리테이너(900)의 직근 전방에 배치된 클러치 피스톤(110)의 작동을 위한 유압이 공급되는 유입유로(400)가 클러치 보스(100)에 형성되고, 상기 유입유로(400)의 하부에 마련된 슬리브(200)에 유체의 누유를 막는 씰(600)이 설치되며, 클러치 피스톤(310)의 작동 중 유압 상승으로 인해 씰(600)을 통해 공간부(700)로 유체가 누유된 경우, 그 누유된 유체를 공간부(700)로부터 배출하기 위한 배출유로(800)가 마련된 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기로서, 상기 배출유로(800)는, 리어커버(910)에 연장되어 리어커버(910)와 피스톤 리테이너(900) 사이로 연결되되, 상기 공간부(700)의 유체가 외부로 원활하게 배출되도록 상기 슬리브(200) 내부에 수평되게 형성된다.The present invention relates to an automatic transmission having a clutch piston discharge passage improvement structure. In the automatic transmission, an inflow passage 400 for supplying hydraulic pressure for operation of the clutch piston 110 disposed in front of the piston retainer 900 is provided in the clutch boss 100, and the inflow passage 400 is provided. The seal 600 is installed in the sleeve 200 provided at the lower portion of the fluid, and the fluid is leaked into the space 700 through the seal 600 due to the hydraulic rise during the operation of the clutch piston 310. In this case, the automatic transmission having a clutch piston discharge passage improvement structure provided with a discharge passage 800 for discharging the leaked fluid from the space portion 700, the discharge passage 800 is extended to the rear cover 910 Is connected between the rear cover 910 and the piston retainer 900, it is formed horizontally inside the sleeve 200 so that the fluid of the space 700 is smoothly discharged to the outside.

자동변속기, 클러치 피스톤, 유입 유로, 배출 유로, Automatic transmission, clutch piston, inflow passage, discharge passage,

Description

클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기{Auto Transmission Having Improved Oil-discharging Path Structure for Clutch Piston}Auto Transmission Having Improved Oil-discharging Path Structure for Clutch Piston

도 1은 종래의 클러치 피스톤 배출 유로를 도시한 단면도.1 is a cross-sectional view showing a conventional clutch piston discharge passage.

도 2는 본 발명에 따른 클러치 피스톤 배출 유로 개선 구조를 도시한 단면도.Figure 2 is a cross-sectional view showing a clutch piston discharge passage improvement structure according to the present invention.

※도면의 주요 부분에 대한 부호 설명※※ Code explanation about main part of drawing ※

100: 클러치 보스 200: 슬리브100: clutch boss 200: sleeve

300: 클러치 피스톤 310: 실린더300: clutch piston 310: cylinder

320: 피스톤 330: 작동부320: piston 330: operating part

340: 마찰판 400: 유입 유로340: friction plate 400: inflow passage

500: 스프링 600: 씰500: spring 600: seal

700: 공간부 800: 배출 유로700: space portion 800: discharge passage

본 발명은 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기에 관한 것으로서, 더욱 상세하게는 자동변속기 내 클러치 피스톤을 작동시키기 위해 공급되는 유압과 클러치 피스톤 작동으로 인해 상승되는 압력으로 누유된 유체를 원활히 배출시킬 수 있는 자동변속기 배출 유로 개선구조에 관한 것이다.The present invention relates to an automatic transmission having a clutch piston discharge flow path improving structure, and more particularly, to smoothly discharge the fluid leaked by the hydraulic pressure supplied to operate the clutch piston in the automatic transmission and the elevated pressure due to the clutch piston operation. The present invention relates to an automatic transmission discharge passage improvement structure.

일반적으로, 자동변속기에는 유성기어장치의 각 구성요소로는 링기어, 선기어, 및 유성기어 캐리어 등을 구동시키거나 피동축에 연결하기 위한 여러 종류의 마찰 작동요소들이 있다.In general, the automatic transmission includes various types of friction actuation elements for driving or connecting a driven gear, such as a ring gear, a sun gear, and a planetary gear carrier, as components of the planetary gear device.

이러한 마찰 작동요소로서 다판 클러치, 밴드 브레이크 및 일방향 클러치 등이 있다.Such friction actuation elements include multi-plate clutches, band brakes and one-way clutches.

도 1에 도시된 바와 같이 자동변속기의 클러치 피스톤 구조를 살펴보면 다음과 같다.Looking at the clutch piston structure of the automatic transmission as shown in Figure 1 as follows.

클러치에 토크를 전달하기 위해 구성된 클러치 보스(10)에는 일체형의 슬리브(20)가 설치되고, 슬리브(20)가 배치된 부위의 클러치 보스(10)에는 클러치 피스톤(30: 31,32)에 유압을 공급하기 위한 유입 유로(40)가 형성되어 있다.An integral sleeve 20 is installed in the clutch boss 10 configured to transmit torque to the clutch, and the clutch boss 10 in the portion where the sleeve 20 is disposed is hydraulically applied to the clutch pistons 30: 31, 32. An inflow passage 40 for supplying the gas is formed.

유입 유로(40)를 통하여 작동 유압이 클러치 피스톤(30)에 전달되면, 그 힘에 의해 피스톤(30)이 도 1에서 볼 때 우측방향으로 이동될 수 있게 되는 것이며, 이와 같이 이동하는 피스톤(30)은 도 1에서 볼 때 좌측방향으로 탄력 지지하도록 설치되dj 있는 스프링(50)에 의해 원래의 위치로 복귀될 수 있다. 통상적인 경우와 마찬가지로, 스프링(50)은 브래킷에 의해 지지되며, 클러치 피스톤(32)의 후방에는 통상의 경우와 마찬가지로 피스톤 리테이너(90) 및 리어커버(91)이 배치되어 있다.When the hydraulic pressure is transmitted to the clutch piston 30 through the inflow passage 40, the piston 30 can be moved to the right direction as shown in FIG. 1 by the force, and the piston 30 thus moved. ) Can be returned to its original position by a spring 50 which is installed to elastically support in the left direction as seen in FIG. 1. As in the conventional case, the spring 50 is supported by the bracket, and the piston retainer 90 and the rear cover 91 are disposed behind the clutch piston 32 as in the usual case.

상기와 같은 일반적인 구조에서 유입 유로(40)를 따라 클러치 피스톤(30) 측으로 유체가 유입되면 작동 유압에 의해, 피스톤(30)은 상술한 바와 같이 우측으로 이동하면서 피스톤(32)의 작동부(33)가 클러치의 마찰판(34)을 밀어 클러치를 작동시킨다.In the general structure as described above, when the fluid flows into the clutch piston 30 along the inflow passage 40, the hydraulic pressure actuates the piston 30 while the piston 30 moves to the right as described above. ) Pushes the friction plate 34 of the clutch to operate the clutch.

이 후 작동 유압이 제거되면 피스톤(30)은 스프링(50)의 복원력에 의해 원래의 위치로 복귀하여 대기 상태에 이르게 된다.After the operation hydraulic pressure is removed after the piston 30 is returned to its original position by the restoring force of the spring 50 to reach the standby state.

상기와 같은 클러치 피스톤의 작동을 위해 유입 유로(40)를 따라 유체가 공급되고, 상기 클러치 피스톤(30)의 작동에 의해 이 유입 유로(40)에 유압이 걸릴 때 씰(seal)(60) 사이로 유체가 조금씩 누유되어 공간부(70)에 고이게 된다.Fluid is supplied along the inflow passage 40 for the operation of the clutch piston as described above, and when the hydraulic pressure is applied to the inflow passage 40 by the operation of the clutch piston 30, the seal 60 passes between the seals 60. The fluid leaks little by little and accumulates in the space part 70.

상기 공간부(70)에 고인 유체의 배출을 위해서 슬리브(20)에는 경사지게 배출 유로(80)가 가공되어 있고, 이 배출유로(80)는 리어커버(91)로 연장되어 리어커버(91)와 피스톤 리테이너(90) 사이로 연결된다.In order to discharge the fluid accumulated in the space portion 70, the discharge passage 80 is inclined in the sleeve 20, and the discharge passage 80 extends to the rear cover 91 so as to cover the rear cover 91 and the rear cover 91. It is connected between the piston retainer 90.

그러나, 상기와 같이 공간부(70)에 고인 유체의 배출을 위해서 구성되는 배출 유로(80)는 그 형상이 2번 절곡되어 형성됨과 더불어 외부와의 밀폐를 위한 볼(81)이 구성됨으로, 이에 따라 원가 및 조립공정이 상승하는 문제점을 내포하고 있다.However, as described above, the discharge flow path 80 configured to discharge the fluid accumulated in the space 70 is formed by bending the shape twice, and the ball 81 for sealing with the outside is configured. As a result, the cost and assembly process are rising.

본 발명은 상기와 같은 문제점을 해결하기 위해 제안된 것으로서, 누유된 유체가 포집되는 공간부에 유체의 배출을 위해서 그 형상이 2번 절곡되어 형성된 배출 유로의 형상을 달리하고, 외부와의 밀폐를 위해 설치되는 볼의 구성을 삭제함으로 달리하여 원가 및 조립공정이 상승하는 문제점을 해결하는데 그 목적이 있다.The present invention has been proposed to solve the above problems, different shape of the discharge flow path formed by bending the shape twice for the discharge of the fluid in the space in which the leaked fluid is collected, and the sealing with the outside By eliminating the configuration of the ball is installed for the purpose of solving the problem of rising cost and assembly process.

상기의 목적을 달성하기 위한 본 발명에 따른 클러치 피스톤 배출유로 개선 구조는, 피스톤 리테이너의 직근 전방에 배치된 클러치 피스톤의 작동을 위한 유압이 공급되는 유입유로가 클러치 보스에 형성되고, 상기 유입유로의 하부에 마련된 슬리브에 유체의 누유를 막는 씰이 설치되며, 클러치 피스톤의 작동 중 유압 상승으로 인해 씰을 통해 공간부로 유체가 누유된 경우, 그 누유된 유체를 공간부로부터 배출하기 위한 배출유로가 마련된 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기로서, 여기서, 상기 배출유로는, 리어커버에 연장되어 리어커버와 피스톤 리테이너 사이로 연결되되, 상기 공간부의 유체가 외부로 원활하게 배출되도록 상기 슬리브 내부에 수평되게 형성된다.In the clutch piston discharge passage improvement structure according to the present invention for achieving the above object, an inflow passage for supplying hydraulic pressure for the operation of the clutch piston disposed in front of the piston retainer is formed in the clutch boss, A seal that prevents leakage of fluid is installed in the sleeve provided at the lower portion, and when a fluid leaks into the space portion through the seal due to the hydraulic rise during operation of the clutch piston, a discharge passage for discharging the leaked fluid from the space portion is provided. An automatic transmission having a clutch piston discharge passage improvement structure, wherein the discharge passage extends to the rear cover and is connected between the rear cover and the piston retainer, and is horizontally inside the sleeve to smoothly discharge the fluid of the space portion to the outside. Is formed.

이하에서, 본 발명에 따른 클러치 피스톤 배출 유로 개선 구조의 구성 및 그에 따른 실시예를 더욱 상세히 설명한다.Hereinafter, the configuration of the clutch piston discharge passage improvement structure and the embodiment thereof according to the present invention will be described in more detail.

도 2는 본 발명에 따른 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기를 도시한 단면도이다.2 is a cross-sectional view showing an automatic transmission having a clutch piston discharge passage improvement structure according to the present invention.

자동변속기 내에 위치한 클러치에 토크를 전달하기 위해 구성된 클러치 보스(10)에는 일체형의 슬리브(200)가 설치되고, 슬리브(200)가 배치된 부위의 클러치 보스(100)에는 클러치 피스톤(300: 310,320)에 유압을 공급하기 위한 유입 유로(400)가 형성된다.An integral sleeve 200 is installed on the clutch boss 10 configured to transmit torque to the clutch located in the automatic transmission, and clutch pistons 300 (310, 320) are installed on the clutch boss 100 at the portion where the sleeve 200 is disposed. An inflow passage 400 for supplying hydraulic pressure is formed.

삭제delete

상기 슬리브(200)에는 씰(600)이 마련되며, 유입 유로(400)를 통해 유체가 공급되고 클러치 피스톤(300) 작동에 의하여 유입 유로(400)에 과도한 유압 상승이 발생되면, 씰(600)을 통하여 공간부(700)로 누유가 발생된다.The sleeve 200 is provided with a seal 600, when the fluid is supplied through the inflow channel 400 and excessive hydraulic rise occurs in the inflow channel 400 by the clutch piston 300, the seal 600 is provided. Leakage is generated through the space portion 700 through.

한편, 클러치 피스톤(300)은 실린더(320)의 유입 유로(400)를 통한 작동 유압의 힘에 의해 도 2에서 볼 때 우측방향으로 이동될 수 있게 되는 것이며, 이와 같이 이동하는 피스톤(300)은 도 2에서 볼 때 좌측방향으로 탄력 지지하도록 설치되어 있는 스프링(500)에 의해 원래의 위치로 복귀할 수 있다.On the other hand, the clutch piston 300 is to be moved in the right direction as seen in Figure 2 by the force of the operating hydraulic pressure through the inflow passage 400 of the cylinder 320, the piston 300 to move in this way As shown in Figure 2 it can be returned to its original position by the spring 500 is installed to elastically support in the left direction.

상기와 같이 유입 유로(400)를 통해 클러치 피스톤(300)에 작동 유압이 전달되면, 피스톤(310)은 상술한 바와 같이 우측으로 이동하면서 피스톤(310)의 작동부(330)가 클러치의 마찰판(340)을 밀어 클러치를 작동시킨다.When operating hydraulic pressure is transmitted to the clutch piston 300 through the inflow passage 400 as described above, the piston 310 moves to the right as described above, while the operating portion 330 of the piston 310 moves to the friction plate of the clutch ( Push 340 to actuate the clutch.

이때, 그 내부의 압력은 증가하게 되고 상기 유입 유로(400)에 유압이 형성되면 상기 씰(600)을 통해 유체가 누유되어 진다.At this time, the pressure inside thereof increases and when the hydraulic pressure is formed in the inflow passage 400, the fluid leaks through the seal 600.

이렇게, 씰(600)을 통해 누유된 유체는 공간부(700)에 포집되어 지고, 상기 공간부(700)에 포집된 유체가 원활히 배출될 수 있도록 슬리브(200) 내부에 배출 유로(800)가 형성된다.As such, the fluid leaked through the seal 600 is collected in the space 700, and the discharge passage 800 is formed inside the sleeve 200 so that the fluid collected in the space 700 can be smoothly discharged. Is formed.

또한, 상기 배출유로(800)는, 특히, 슬리브(200) 내부에 수평하게 형성되며 리어커버(910)로 연장되어 리어커버(910)와 피스톤 리테이너(900) 사이로 연결된다. 공간부(700)에 모아진 유체는, 도 2에 도시된 화살표와 같은 방향을 따라 배출되는 것이다.In addition, the discharge passage 800 is, in particular, formed horizontally inside the sleeve 200 and extends to the rear cover 910 is connected between the rear cover 910 and the piston retainer 900. The fluid collected in the space 700 is discharged along the same direction as the arrow shown in FIG. 2.

이는 클러치 피스톤(300)의 작동에 따른 압력에 의해 공간부(700)로 누유된 유체를 보다 원활히 배출함과 아울러 원가 및 조립공정을 줄이기 위함이다.This is to smoothly discharge the fluid leaked into the space 700 by the pressure of the clutch piston 300, and to reduce the cost and the assembly process.

상술한 바와 같이 본 발명에 따른 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기에 따르면, 슬리브 내부 일면에 구성된 배출 유로로 인해 기존의 2번 절곡 형성된 배출 유로를 삭제할 수 있음은 물론 외부와의 밀폐를 위하여 설치된 볼을 추가적으로 삭제할 수 있어 원가 및 조립 공정을 줄일 수 있는 효과와 공간부에 포집된 유체를 원활히 배출할 수 있는 효과가 있다.According to the automatic transmission having a clutch piston discharge passage improvement structure according to the present invention as described above, due to the discharge passage configured on the inner surface of the sleeve can be deleted the existing discharge passage formed bent twice as well as for sealing with the outside Since the installed ball can be additionally deleted, the cost and assembly process can be reduced, and the fluid collected in the space can be smoothly discharged.

Claims (2)

피스톤 리테이너(900)의 직근 전방에 배치된 클러치 피스톤(110)의 작동을 위한 유압이 공급되는 유입유로(400)가 클러치 보스(100)에 형성되고, 상기 유입유로(400)의 하부에 마련된 슬리브(200)에 유체의 누유를 막는 씰(600)이 설치되며, 클러치 피스톤(310)의 작동 중 유압 상승으로 인해 씰(600)을 통해 공간부(700)로 유체가 누유된 경우, 그 누유된 유체를 공간부(700)로부터 배출하기 위한 배출유로(800)가 마련된 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기로서, An inflow passage 400 for supplying hydraulic pressure for operation of the clutch piston 110 disposed in front of the piston retainer 900 is formed in the clutch boss 100, and a sleeve provided below the inflow passage 400. The seal 600 is installed at the 200 to prevent leakage of the fluid, and when the fluid is leaked to the space 700 through the seal 600 due to the hydraulic rise during the operation of the clutch piston 310, the leaked As an automatic transmission having a clutch piston discharge flow path improvement structure provided with a discharge flow path 800 for discharging fluid from the space 700, 상기 배출유로(800)는, 리어커버(910)에 연장되어 리어커버(910)와 피스톤 리테이너(900) 사이로 연결되되, 상기 공간부(700)의 유체가 외부로 원활하게 배출되도록 상기 슬리브(200) 내부에 수평되게 형성되는 것을 특징으로 하는 클러치 피스톤 배출 유로 개선구조를 갖는 자동변속기.The discharge passage 800 extends to the rear cover 910 and is connected between the rear cover 910 and the piston retainer 900, so that the fluid in the space 700 is smoothly discharged to the outside. Automatic transmission having a clutch piston discharge passage improved structure, characterized in that formed horizontally inside. 삭제delete
KR1020060051521A 2006-06-08 2006-06-08 Auto Transmission Having Improved Oil-discharging Path Structure for Clutch Piston KR100828593B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001409A (en) 2018-06-27 2020-01-06 평화오일씰공업주식회사 Automatic transmission clutch unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001208097A (en) * 2000-01-31 2001-08-03 Jatco Transtechnology Ltd Clutch mechanism for automatic transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001208097A (en) * 2000-01-31 2001-08-03 Jatco Transtechnology Ltd Clutch mechanism for automatic transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001409A (en) 2018-06-27 2020-01-06 평화오일씰공업주식회사 Automatic transmission clutch unit

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