KR200155985Y1 - Wheel cylinder for drum brake - Google Patents

Wheel cylinder for drum brake Download PDF

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Publication number
KR200155985Y1
KR200155985Y1 KR2019960042981U KR19960042981U KR200155985Y1 KR 200155985 Y1 KR200155985 Y1 KR 200155985Y1 KR 2019960042981 U KR2019960042981 U KR 2019960042981U KR 19960042981 U KR19960042981 U KR 19960042981U KR 200155985 Y1 KR200155985 Y1 KR 200155985Y1
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KR
South Korea
Prior art keywords
wheel cylinder
tube
piston
bellows tube
brake shoe
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Application number
KR2019960042981U
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Korean (ko)
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KR19980029902U (en
Inventor
김준호
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양재신
대우자동차주식회사
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Priority to KR2019960042981U priority Critical patent/KR200155985Y1/en
Publication of KR19980029902U publication Critical patent/KR19980029902U/en
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Publication of KR200155985Y1 publication Critical patent/KR200155985Y1/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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • 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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
    • F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
    • F16D51/24—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots fluid actuated
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/04—Cylinders

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

본 고안은 휠 실린더내의 피스톤 작동구조를 자체 탄성력을 갖는 벨로우즈 타입의 튜브를 설치함으로써 휠 실린더의 부품수를 감소함과 동시에 더욱 정확한 작동력을 발생시키도록 하는 등의 목적을 갖는 자동차용 휠 실린더에 관한 것으로서, 피스톤의 각 양측이 브레이크 슈에 설치되어 압유의 흐름에 의해 브레이크 드럼에 마찰을 가하도록 하는 휠 실린더에 있어서,The present invention relates to a wheel cylinder for an automobile having the purpose of reducing the number of parts of a wheel cylinder and generating a more accurate operating force by installing a bellows-type tube having its own elastic force for the piston operating structure in the wheel cylinder. In the wheel cylinder, each side of the piston is provided on the brake shoe to apply friction to the brake drum by the flow of pressure oil,

실린더 본체 내부에 일측이 중앙에 고정되고 타단이 자유단으로 되어 압유의 유입으로 신축이 자재되되, 항상 휠 실린더 본체의 중심쪽으로 압축할려는 힘이 부여된 고탄성재질의 벨로우즈 튜브와; 일측이 상기 벨로우즈 튜브의 각 양측에 설치되고 타측이 브레이크 슈에 고정연결되어 벨로우즈 튜브의 작동력에 의해 연동하는 튜브 로드로 구성하여 된 것이다.A highly elastic bellows tube having one end fixed in the center and the other end being free in the cylinder body and being stretched due to inflow of pressure oil, and always being forced to compress toward the center of the wheel cylinder body; One side is installed on both sides of the bellows tube and the other side is fixed to the brake shoe is composed of a tube rod that is linked by the operating force of the bellows tube.

Description

자동차용 휠 실린더Car Wheel Cylinder

본 고안은 자동차용 휠 실린더에 관한 것으로서, 더욱 상세하게는 휠 실린더내의 피스톤 작동구조를 자체 탄성력을 갖는 벨로우즈 타입의 튜브를 설치함으로써 휠 실린더의 부품수를 감소함과 동시에 더욱 정확한 작동력을 발생시키도록 하는 자동차용 휠 실린더에 관한 것이다.The present invention relates to a wheel cylinder for an automobile, and more particularly, to install a bellows-type tube having a self-elevating force in the piston operating structure in the wheel cylinder, thereby reducing the number of parts of the wheel cylinder and at the same time generating more accurate operating force. It relates to a wheel cylinder for an automobile.

일반적으로, 휠 실린더는 마스터 실린더에서 보내주는 유압을 받아서 브레이크 슈를 드럼에 밀어 붙이는 역할을 하는 것으로 브레이크 본체의 형식에 따라 여러 가지 구조의 것이 있으나 가장 일반적인 것에 대해 설명한다.In general, the wheel cylinder is to act to push the brake shoe to the drum by receiving the hydraulic pressure from the master cylinder, but there are various structures depending on the type of the brake body, but the most common will be described.

상기 휠 실린더는 첨부도면 도 1 및 도 2에 도시된 바와같이 차축에 고정된 백 플레이트(20)의 상부에 장착되어 있으며 주철 또는 알류미늄 합금제의 휠 실린더 본체(10), 피스톤(12) 및 러버재의 피스톤 컵(14) 등을 주체로 하여 구성되어 있다.The wheel cylinder is mounted on the upper part of the back plate 20 fixed to the axle as shown in Figs. 1 and 2, and the wheel cylinder body 10, piston 12 and rubber made of cast iron or aluminum alloy. It is comprised mainly by the piston cup 14 etc. of ash.

휠 실린더 본체(10)의 중앙부에는 오일구멍과 브레이크액내에 혼입한 공기를 빼기위한 에어 블리더(도시안됨)가 설치되어 있으며 리턴 스프링(16)은 피스톤(12) 및 피스톤 컵(14)을 항상 바깥쪽으로 밀어 벌리도록 장치되어 있다. 이밖에 상기 피스톤 본체(10)의 각 양측에는 피스톤(12) 및 피스톤 컵(14)이 리니어 운동을 함에 따른 습동과 압유의 밀폐를 담당하는 부시(18)가 압착되어 있다.In the center of the wheel cylinder body 10, an air bleeder (not shown) is installed for bleeding air into the oil hole and the brake fluid, and the return spring 16 always holds the piston 12 and the piston cup 14 at all times. It is designed to push outwards. In addition, the bushes 18, which are in charge of the sliding of the piston 12 and the piston cup 14 as the linear movement of the piston main body 10 and the sealing of the oil, are pressed.

한편, 상기 피스톤의 각 일단에는 브레이크 드럼(30)의 내면에 면접하여 마찰력을 발생시키도록 하는 브레이크 슈(32)가 브레이크 라이닝(34)에 의해 고정 설치되어 있다.On the other hand, at each end of the piston, a brake shoe 32 is fixed to the brake lining 34 so as to contact the inner surface of the brake drum 30 to generate a frictional force.

그러나, 이와같은 종래의 휠 실린더는 작동상에는 아무런 문제가 발생되지는 않지만 부품의 수가 많아 생산비용과 작업시간이 증가하는 문제점이 있었다.However, such a conventional wheel cylinder does not cause any problem in operation, but there is a problem in that the production cost and work time increase due to the large number of parts.

또한, 부품의 수가 증가함에 따라 각 부품간의 공차가 발생되어 정확한 작동력을 발생시키기에는 어느 정도 한계가 있었다.In addition, as the number of parts increases, tolerances between the parts occur to some extent to generate accurate operating force.

따라서, 본 고안은 상기와 같은 문제점을 해결하기 위해 안출된 것으로서, 그 목적은 휠 실린더내의 피스톤 작동구조를 자체 탄성력을 갖는 벨로우즈 타입의 튜브를 설치함으로써 휠 실린더의 부품수를 감소함과 동시에 더욱 정확한 작동력을 발생시키도록 하는 자동차용 휠 실린더를 제공함에 있다.Therefore, the present invention has been devised to solve the above problems, and its object is to provide a bellows type tube having its own elastic force to the piston operating structure in the wheel cylinder, thereby reducing the number of parts of the wheel cylinder and at the same time more accurate. It is to provide an automobile wheel cylinder to generate an operating force.

상기의 목적을 달성하기 위해 본 고안은, 피스톤의 각 양측이 브레이크 슈에 설치되어 압유의 흐름에 의해 브레이크 드럼에 마찰을 가하도록 하는 휠 실린더에 있어서,In order to achieve the above object, the present invention is a wheel cylinder in which both sides of the piston are provided on the brake shoe to apply friction to the brake drum by the flow of pressure oil,

실린더 본체 내부에 일측이 중앙에 고정되고 타단이 자유단으로 되어 압유의 유입으로 신축이 자재되는 고탄성재질의 벨로우즈 튜브와;A highly elastic bellows tube having one end fixed in the center and the other end being free in the cylinder body and being stretched by inflow of pressure oil;

일측이 상기 벨로우즈 튜브의 각 양측에 설치되고 타측이 브레이크 슈에 고정연결되어 벨로우즈 튜브의 작동력에 의해 연동하는 튜브 로드로 구성하여 된 특징을 갖는다.One side is installed on both sides of the bellows tube and the other side is fixedly connected to the brake shoe has a feature consisting of a tube rod that is linked by the operating force of the bellows tube.

도 1은 휠 실린더가 장착된 위치 상태를 도시한 측면도.1 is a side view showing a position state in which the wheel cylinder is mounted.

도 2은 종래 자동차용 휠 실린더를 도시한 측단면도.Figure 2 is a side cross-sectional view showing a wheel cylinder for a conventional vehicle.

도 3는 본 고안에 따른 자동차용 휠 실린더를 도시한 측단면도.Figure 3 is a side sectional view showing a wheel cylinder for a vehicle according to the present invention.

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

10 : 휠 실린더 본체 11 : 피스톤10: wheel cylinder body 11: piston

12 : 피스톤 컵 13 : 리턴 스프링12: piston cup 13: return spring

14 : 부시 15 : 벨로우즈 튜브14 bush 15 bellows tube

16 : 튜브 로드 20 : 백 플레이트16: tube rod 20: back plate

30 : 브레이크 드럼 32 : 브레이크 슈30: brake drum 32: brake shoe

34 : 브레이크 라이닝34: brake lining

이하, 본 고안의 일실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3는 본 고안에 따른 자동차용 휠 실린더를 도시한 측단면도이다.Figure 3 is a side cross-sectional view showing a wheel cylinder for a vehicle according to the present invention.

본 고안의 구성은, 피스톤의 각 양측이 브레이크 슈에 설치되어 압유의 흐름에 의해 브레이크 드럼에 마찰을 가하도록 하는 휠 실린더에 있어서,The configuration of the present invention is a wheel cylinder in which both sides of the piston are provided on the brake shoe to apply friction to the brake drum by the flow of pressure oil,

실린더 본체(10) 내부에 일측이 중앙에 고정되고 타단이 자유단으로 되어 압유의 유입으로 신축이 자재되는 고탄성재질의 벨로우즈 튜브(15)와;A highly elastic bellows tube 15 having one side fixed to the center and the other end being free at the inside of the cylinder body 10 and being stretched by inflow of pressure oil;

일측이 상기 벨로우즈 튜브(15)의 각 양측에 설치되고 타측이 브레이크 슈(32)에 고정연결되어 벨로우즈 튜브(15)의 작동력에 의해 연동하는 튜브 로드(16)로 구성하여 된 것이다.One side is formed on each side of the bellows tube 15 and the other side is composed of a tube rod 16 is fixedly connected to the brake shoe 32 is interlocked by the operating force of the bellows tube (15).

한편, 상기 벨로우즈 튜브(15)는 항상 휠 실린더 본체(10)의 중심쪽으로 압축할려는 힘을 갖게 형성하여 된 것이다.On the other hand, the bellows tube 15 is formed to always have a force to compress toward the center of the wheel cylinder body (10).

상기와 같이 구성된 본 고안의 작동상태를 설명하면 다음과 같다.Referring to the operating state of the subject innovation configured as described above are as follows.

상기 휠 실린더 본체(10)의 유입포트(도시안됨)로 압유가 유입되면 벨로우즈 튜브(15)내로 압유가 만충되고 상기 벨로우즈 튜브(15)가 갖는 자체 탄성력 이상으로 압유가 유입되면 좌우 길이방향으로 벌어지면서 상기 각 튜브(15)의 일측끝단에 설치된 튜브 로드(16)는 이와 연동하면서 브레이크 슈(32)를 밀게 된다.When the hydraulic oil flows into the inlet port (not shown) of the wheel cylinder body 10, the hydraulic oil is filled into the bellows tube 15, and when the hydraulic oil flows into the bellows tube 15 more than its own elastic force, The tube rod 16 installed at one end of each tube 15 pushes the brake shoe 32 while interlocking with the tube rod 16.

밀리게 되는 브레이크 슈(32)의 작동력은 브레이크 드럼(30)을 가압하되, 공차가 생기지 않는 단일구조이기 때문에 훨씬 정확한 리니어 작동을 실행시킬 수 있다. 한편, 상기 벨로우즈 튜브(15)내의 압유가 유출포트(도시안됨)로 빠져나가게 되면 상기 벨로우즈 튜브(15)의 자체 탄성 복귀력으로 원위치로 환원되면서 축소되는 것이다.The actuation force of the brake shoe 32 being pushed pushes the brake drum 30, but since the unitary structure does not have a tolerance, a more accurate linear operation can be performed. On the other hand, when the pressure oil in the bellows tube 15 is discharged to the outlet port (not shown) is reduced to its original position by the elastic return force of the bellows tube 15 is reduced.

따라서, 이와같은 본 고안을 실차에 적용하게 되면, 부품의 개수 감소와 일체화에 의해 공차가 제거되어 종래에 비해 훨씬 정확한 리니어 동작을 기대할 수 있는 한편, 부품 감소에 따른 제조비의 절감으로 생산성 향상을 도모할 수 있는 매우 유용한 효과가 기대된다.Therefore, when the present invention is applied to a real vehicle, the tolerance is eliminated by reducing the number of parts and integration, and thus, a much more accurate linear operation can be expected than in the related art, and the productivity is improved by reducing the manufacturing cost due to the reduction of parts. A very useful effect is expected.

Claims (1)

피스톤의 각 양측이 브레이크 슈에 설치되어 압유의 흐름에 의해 브레이크 드럼에 마찰을 가하도록 하는 휠 실린더에 있어서,In a wheel cylinder in which both sides of the piston are provided on the brake shoe to apply friction to the brake drum by the flow of pressure oil, 실린더 본체(10) 내부에 일측이 중앙에 고정되고 타단이 자유단으로 되어 압유의 유입으로 신축이 자재되되, 항상 휠 실린더 본체(10)의 중심쪽으로 압축할려는 힘이 부여된 고탄성재질의 벨로우즈 튜브(15)와;One side is fixed to the center inside the cylinder body 10 and the other end is a free end, and the elastic material is stretched by the inflow of pressure oil, but the bellows tube of high elasticity is always given the force to compress toward the center of the wheel cylinder body (10) 15; 일측이 상기 벨로우즈 튜브(15)의 각 양측에 설치되고 타측이 브레이크 슈(32)에 고정연결되어 벨로우즈 튜브(15)의 작동력에 의해 연동하는 튜브 로드(16)로 이루어진 자동차용 휠 실린더.One side of the bellows tube (15) is installed on each of both sides of the wheel cylinder for automobiles consisting of a tube rod (16) fixedly connected to the brake shoe (32) interlocked by the operating force of the bellows tube (15).
KR2019960042981U 1996-11-28 1996-11-28 Wheel cylinder for drum brake KR200155985Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019960042981U KR200155985Y1 (en) 1996-11-28 1996-11-28 Wheel cylinder for drum brake

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Application Number Priority Date Filing Date Title
KR2019960042981U KR200155985Y1 (en) 1996-11-28 1996-11-28 Wheel cylinder for drum brake

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KR19980029902U KR19980029902U (en) 1998-08-17
KR200155985Y1 true KR200155985Y1 (en) 1999-09-01

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Publication number Priority date Publication date Assignee Title
KR100814578B1 (en) * 2001-12-04 2008-03-17 두산인프라코어 주식회사 Pressure leakage prevented cylinder equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100814578B1 (en) * 2001-12-04 2008-03-17 두산인프라코어 주식회사 Pressure leakage prevented cylinder equipment

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