KR950005143Y1 - Hydraulic piston of booster - Google Patents
Hydraulic piston of booster Download PDFInfo
- Publication number
- KR950005143Y1 KR950005143Y1 KR92027291U KR920027291U KR950005143Y1 KR 950005143 Y1 KR950005143 Y1 KR 950005143Y1 KR 92027291 U KR92027291 U KR 92027291U KR 920027291 U KR920027291 U KR 920027291U KR 950005143 Y1 KR950005143 Y1 KR 950005143Y1
- Authority
- KR
- South Korea
- Prior art keywords
- piston
- cylinder
- hydraulic
- power
- air
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 배력식 브레이크 장치를 나타낸 구성단면도.1 is a sectional view showing a hydraulic brake system.
제 2 도는 종래의 피스톤과 실린더를 나타낸 구성단면도.2 is a cross-sectional view showing a conventional piston and a cylinder.
제 3 도는 본 고안의 피스톤을 나타낸 정면도와 측면도.3 is a front view and a side view showing a piston of the present invention.
제 4 도는 본 고안의 피스톤이 설치된 측단면도이다.4 is a side cross-sectional view of the piston of the present invention is installed.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 릴레이밸브 2 : 동력실린더1: relay valve 2: power cylinder
3 : 동력피스톤 4 : 오일출구3: power piston 4: oil outlet
5 : 하이드롤릭실린더 6 : 하이드롤릭피스톤5: hydrocylinder 6: hydro piston
7 : 피스톤헤드 8 : 에어홈7: piston head 8: air groove
9 : 실린더헤드 11 : 피스톤컵9: cylinder head 11: piston cup
본 고안은 배력식 브레이크장치의 하이드롤릭 피스톤에 관한 것으로 특히 배력장치의 기밀시험시 브레이크오일이 아닌 에어로 기밀시험을 할 수 있도록 피스톤에 에어홈을 형성한 하이드롤릭 피스톤에 관한 것이다.The present invention relates to a hydraulic piston of a hydraulic brake system, and more particularly, to a hydraulic piston in which an air groove is formed in a piston so that an airtight test can be carried out by air instead of brake oil during a hydraulic test of the hydraulic power brake device.
진공식 배력장치는 홉기다기관 또는 진공펌프에서 발생한 부압과 대기압의 압력차를 배력장치내에 설치된 동력피스톤에 작용시켜 큰 힘을 브레이크에 작용하게 하는 것으로 그 구조는 제 1 도에 도시된 바와같이 공기청정기와 연결된 릴레이밸브(1)와, 동력피스톤(3)이 릴레이밸브(1)에 의해 양쪽 압력차가 발생하여 하이드롤릭 피스톤(6)을 밀어줌으로써 강력한 유압을 발생시키는 동력실린더(2)와, 하이드롤릭피스톤(6)이 동력실린더(2)에 의해 마스터실린더의 유압을 훌실린더로 전달하는 하이드롤릭실린더(5)로 구성되는 바 이때의 배력장치 특히 하이드롤릭실린더(5)내의 기밀상태를 검사하는 기밀시험에 있어서는 종래의 동력피스톤(3)을 작동시켜 피스톤(6)이 전진하여 피스톤헤드(7)가 실린더(5)의 오일출구(4)가 있는 실린더헤드(9)에 밀착되게 한 다음 오일을 공급하여 기밀상태를 검사하게 되는데 이때 피스톤(6)의 피스톤컵(11) 및 밸브로드시일(seal)에 이상이 있으면 압력이 저하되면서 피스톤이 뒤로 밀리게 된다.The vacuum booster applies the pressure difference between the negative pressure and the atmospheric pressure generated by the hopper manifold or vacuum pump to the power piston installed in the booster to apply a large force to the brake. The relay valve 1 connected to the cleaner and the power piston 3 generate a pressure difference between the two by the relay valve 1, and the hydraulic cylinder 6 pushes the hydraulic piston 6 to generate strong hydraulic pressure, The hydraulic piston (6) is composed of a hydraulic cylinder (5) for transmitting the hydraulic pressure of the master cylinder to the hul cylinder by the power cylinder (2) to check the airtight state in the power unit, especially the hydraulic cylinder (5) at this time In the airtight test, the conventional power piston (3) is operated so that the piston (6) is advanced so that the piston head (7) is in close contact with the cylinder head (9) with the oil outlet (4) of the cylinder (5). To supply the oil to check there is an airtight case, if at least the piston cup 11 and the valve rod seal (seal) of the piston 6 as the pressure is lowered to the piston is back mm.
즉 피스톤이 밀리면 피스톤에 조립되어 있는 피스톤컵 및 로드시일이 찢겨있거나 이상이 있는 것으로 판단해 제품을 불량처리하게 된다.In other words, when the piston is pushed, the piston cup and the rod seal assembled to the piston are judged to be torn or abnormal, and the product is treated as defective.
이와같이 종래에는 제품의 기밀시험시 브레이크오일을 사용함으로써 오일의 독성으로 인해 작업자가 작업을 기피하게 되며, 오일이 흘러내려 기계에 손상을 입힐 뿐만 아니라 오일손실로 인한 경제적인 손실이 컷다.Thus, in the conventional airtight test of the product by using the brake oil, the operator avoids the work due to the toxicity of the oil, the oil flows not only damage the machine, but also economic losses due to oil loss is cut.
본 고안은 이와같은 점을 감안하여 안출한 것으로 진공식배력장치의 하이드롤릭 피스톤 기밀시험시 오일로 하였던 것을 에어로 시험할 수 있도록 함으로써 작업성 향상 및 오일손실을 줄일 수 있도록 한 것이다.The present invention has been devised in view of such a point, and it is intended to improve workability and reduce oil loss by allowing air to test what was used as oil during the hydraulic piston tightness test of the vacuum power booster.
이를 첨부도면에 의거하여 상세히 설명하면 다음과 같다.When described in detail based on the accompanying drawings as follows.
본 고안은 릴레이 밸브(1)와 동력실린더(2)가 연결접속되고, 동력실린더(2)의 동력 피스톤(3)에 의해 실린더(5)내의 피스톤(6)이 압축하며 유압을 전달하는 진공식배력 장치에 있어서, 피스톤(6)의 피스톤헤드(7)에 반경 방향의 에어홈(8)을 형성하여 오일출구(4)로부터 에어(air)가 주입될 수 있게 한 것을 특징으로 한다.According to the present invention, the relay valve 1 and the power cylinder 2 are connected and connected, and the piston 6 in the cylinder 5 is compressed by the power piston 3 of the power cylinder 2 to transfer hydraulic pressure. In the booster, it is characterized in that a radial air groove 8 is formed in the piston head 7 of the piston 6 so that air can be injected from the oil outlet 4.
제 4 도는 본 고안의 실린더(5)와 피스톤(6)을 나타낸 측단면도로써 실린더(5)의 실린더헤드(9)에 오일출구(4)가 형성되어 실린더(5)와 연통되어 있으며, 상기 실린더(5')에는 피스톤로드(10)와 연결된 피스톤(6)이 외주연에 피스톤컵(11)을 구비하여 기밀상태로 미끄럼 이동하게되며, 피스톤헤드(7)에는 반경방향의 에어홈(8)이 형성된다.4 is a side cross-sectional view showing the cylinder 5 and the piston 6 of the present invention, the oil outlet 4 is formed in the cylinder head 9 of the cylinder 5 to communicate with the cylinder 5, the cylinder Piston (6) connected to the piston rod (10) is provided with a piston cup (11) on the outer periphery of the slide (5 ') to slide in a gas tight state, the piston head (7) in the radial air groove (8) Is formed.
여기서 피스톤헤드(7)는 실린더(5)와의 기밀유지 하는데는 전혀 관계가 없고, 단지 종래에는 피스톤(6)이 전진이동했을 때 실리너헤드(9)와 피스톤헤드(7)가 밀착되어 오일출구(4)로부터 에어(air)를 주입할 수가 없었다.Here, the piston head 7 has nothing to do with airtightness with the cylinder 5, but conventionally, when the piston 6 moves forward, the cylinder head 9 and the piston head 7 come into close contact with the oil outlet. It was not possible to inject air from (4).
따라서 피스톤헤드(7)와 실린더헤드(9)와의 밀착된 면에는 상기 에어홈(8)에 의해 에어가 통할 수 있게 되므로 오일출구(4)로 부터 에어를 주입하여서 실린더의 캡(11)이나 로드시일의 기밀상태를 검사할 수 있게 된다.Therefore, the air comes into contact with the piston head 7 and the cylinder head 9 by the air groove 8 so that the air is injected from the oil outlet 4 to the cylinder cap 11 or rod The seal's confidentiality can be inspected.
즉 오일출구(4)로 부터 에어(air)를 주입하면 에어는 상기 에어홈(8)을 따라 피스톤(6)의 외주연과 실린더(5)의 내주연 사이 피스톤 간극(piston clearance)를 지나게 되고 상기 피스톤(6)과 실린더(5)의 기밀상태를 유지하는 피스톤컵(11) 내지는 로드시일의 기밀상태를 검사될 수 있게 되는 것이다.That is, when air is injected from the oil outlet 4, the air passes through the piston clearance between the outer periphery of the piston 6 and the inner periphery of the cylinder 5 along the air groove 8. The airtight state of the piston cup 11 or the rod seal which maintains the airtight state of the piston 6 and the cylinder 5 can be inspected.
이와 같이 본 고안은 종래 오일로 기밀상태를 검사할 수 밖에 없던 것을 오일을 사용하지 않고 에어로 사용할수 있도록 함으로써 작업성 향상 및 오일의 손실을 줄일수 있는 효과가 있는 것이다.As such, the present invention has the effect of improving workability and reducing oil loss by allowing air to be used without using oil, which has to be tested for airtightness with conventional oil.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92027291U KR950005143Y1 (en) | 1992-12-29 | 1992-12-29 | Hydraulic piston of booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92027291U KR950005143Y1 (en) | 1992-12-29 | 1992-12-29 | Hydraulic piston of booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940016418U KR940016418U (en) | 1994-07-25 |
| KR950005143Y1 true KR950005143Y1 (en) | 1995-06-22 |
Family
ID=19348442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92027291U KR950005143Y1 (en) | 1992-12-29 | 1992-12-29 | Hydraulic piston of booster |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950005143Y1 (en) |
-
1992
- 1992-12-29 KR KR92027291U patent/KR950005143Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR940016418U (en) | 1994-07-25 |
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