KR200177134Y1 - A grease supply apparatus for railway line - Google Patents
A grease supply apparatus for railway line Download PDFInfo
- Publication number
- KR200177134Y1 KR200177134Y1 KR2019990019715U KR19990019715U KR200177134Y1 KR 200177134 Y1 KR200177134 Y1 KR 200177134Y1 KR 2019990019715 U KR2019990019715 U KR 2019990019715U KR 19990019715 U KR19990019715 U KR 19990019715U KR 200177134 Y1 KR200177134 Y1 KR 200177134Y1
- Authority
- KR
- South Korea
- Prior art keywords
- lubricating oil
- air
- piston
- injector
- pipe
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K3/00—Wetting or lubricating rails or wheel flanges
-
- 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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/02—Lubricating-pumps with reciprocating piston
- F16N13/06—Actuation of lubricating-pumps
- F16N13/16—Actuation of lubricating-pumps with fluid drive
-
- 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
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
-
- 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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
-
- 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
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/70—Supply
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
본 고안에서는 철도 차량이 곡선구간을 지나갈 때 철도레일에 필요한 만큼의 윤활유를 적시에 공급하여 쾌적한 철도차량의 운행이 이루어질 수 있도록 하는 철도레일에 대한 윤활유 공급장치에 대해 공개한다. 본 고안의 장치는 공기통과; 상기 공기통에 공기를 주입하는 컴프레서와; 내부에 피스톤이 구비되어 피스톤 하부에는 윤활유가 충전되고 피스톤 상부에는 상기 공기통과 배관으로 연결되는 윤활유통과; 철도레일의 안쪽에 설치되며 상기 윤활유통 및 공기통과 각각 배관으로 연결되는 분사기와; 상기 공기통과 상기 윤활유통 및 분사기와의 연결배관에 설치되는 압력레귤레이터와; 상기 압력레귤레이터와 분사기 사이의 배관에 설치되는 솔레노이드 밸브와; 철로의 소정 위치에 부착 고정되어 지나가는 물체를 감지하는 위치감지센서와; 그리고, 상기 위치감지센서의 신호에 따라 상기 컴프레서를 작동하여 공기통에 공기를 주입함과 동시에 상기 솔레노이드 밸브를 일정시간 개방하여 윤활유를 분사시키는 제어반을 포함하여 구성되는 것을 특징으로 한다.The present invention discloses a lubricating oil supply device for a railroad rail so that a comfortable railroad car can be operated by supplying as much lubricating oil as necessary for the railroad rail when the railroad car passes a curved section. The device of the present invention is air passage; A compressor for injecting air into the reservoir; A lubrication oil passage provided with a piston inside the lubricating oil filled in the lower part of the piston and connected to the air cylinder and the pipe at the upper part of the piston; An injector installed inside the railway rail and connected to the lubrication oil tank and the air cylinder by pipes; A pressure regulator installed at a connection pipe between the air cylinder, the lubrication cylinder, and the injector; A solenoid valve installed in a pipe between the pressure regulator and the injector; A position detecting sensor for detecting an object passing by being fixed to a predetermined position of the railway; The control panel may be configured to include a control panel for injecting air into the air chamber by operating the compressor according to the signal of the position detecting sensor and injecting lubricant by opening the solenoid valve for a predetermined time.
Description
본 고안은 철도레일에 대한 윤활유 공급장치에 관한 것으로서, 보다 상세하게는 철로의 곡선 주로 또는 분기점 등에서 기차 바퀴가 접촉되는 레일 안쪽에 윤활유를 적시에 공급하는 윤활유 분사장치에 관한 것이다.The present invention relates to a lubricating oil supply device for a railroad rail, and more particularly, to a lubricating oil injector for supplying lubricating oil in a timely manner to the inside of a rail contacted with a train wheel at a railway curve or a branch point.
철도는 베이스에 일정한 간격으로 침목을 배치하고 그 위에 레일을 평행하게 연결하고 철도차량의 바퀴가 레일 위로 구르도록 한 것인데, 이러한 철도는 곡선구간이나 분기되는 구간에서 레일과 철도차량 바퀴간의 편 마모가 발생하면서 회전저항이 증가하여 소음이 크게 발생하게 된다.Railroads are made by placing the sleepers at regular intervals on the base, connecting the rails in parallel on them, and rolling the wheels of the rolling stock over the rails. As it occurs, the rolling resistance increases and noise is greatly generated.
따라서, 이러한 문제를 해결하기 위하여 철도의 곡선구간에서는 철도차량이 지나갈 때 바퀴와 접촉하는 레일에 대해 윤활유를 공급하는데, 기존에는 철도의 진동을 감지하여 일정감도 이상의 진동이 감지되는 상태이면 바퀴와 접촉하는 레일 안쪽에 윤활유를 일정간격으로 계속 공급하였다.Therefore, in order to solve this problem, the lubricating oil is supplied to the rails in contact with the wheels when the railroad cars pass by the curved section of the railroad. In the past, when the vibration of the railroad is detected and a vibration of more than a certain sensitivity is detected, the wheels are contacted. Lubricating oil was continuously supplied to the inside of the rail at regular intervals.
그러나 이러한 기존의 윤활유 공급장치는 감지되는 진동의 세기를 조절하기 쉽지 않아서 철도 차량이 지나치는 경우 아직 차량이 도착하지 않는 경우나 완전히 지나간 경우, 그리고 옆에 있는 선로에 기차가 지나갈 때에도 작동하여 윤활유를 공급하는 경우가 흔히 발생하는 등 장비의 오작동이 발생하고 또한 윤활유 과다하게 소모되는 문제점이 있었다.However, this conventional lubricant supply is not easy to control the strength of the detected vibrations, so if the railroad car passes by, the vehicle does not yet arrive or passes completely, and when the train passes by the next track, There is a problem that the malfunction of the equipment occurs, such as the case of supplying often occurs, and also excessive consumption of lubricant.
따라서, 본 고안은 이러한 종래 기술의 문제를 해결하고자 한 것으로, 그 목적은 철도 차량이 지나가는 적시에 철도레일에 대해 윤활유를 공급하여 필요한 만큼의 윤활유만이 소모되도록 하여 쾌적한 철도차량 운행이 이루어질 수 있도록 한 철도레일에 대한 윤활유 공급장치를 제공하는 데에 있다.Therefore, the present invention is to solve the problems of the prior art, the purpose of which is to supply the lubricant to the railroad rail in a timely manner to pass the railroad car so that only as much lubricant is consumed so that a comfortable railroad vehicle operation can be achieved It is to provide a lubricating oil supply device for a railway rail.
도 1은 본 고안에 따른 철도레일에 대한 윤활유 공급장치의 구성도.1 is a block diagram of a lubricant supply device for a railway rail according to the present invention.
도 2는 철도레일에 대한 윤활유 공급장치의 배치 상태도.Figure 2 is a layout view of the lubricating oil supply device for the railway rail.
＜ 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>
1 : 설치케이스 2 : 보호관로1: Installation case 2: Protective tube
3 : 보호캡 4 : 자갈층3: protective cap 4: gravel layer
5 : 침목 6 : 레일5: sleeper 6: rail
10 : 공기통 12 : 컴프레서10: air reservoir 12: compressor
14, 22, 24, 34, 38 : 배관 16, 32, 33, 36 : 밸브14, 22, 24, 34, 38: piping 16, 32, 33, 36: valve
20 : 압력레귤레이터 30 : 윤활유통20: pressure regulator 30: lubrication oil
31 : 피스톤 35 : 연결구31: piston 35: connector
37 : 필터 40 : 분사구37: filter 40: injection hole
50 : 제어반 60 : 솔레노이드밸브50: control panel 60: solenoid valve
70 : 위치감지센서70: position detection sensor
상기 본 고안의 목적을 달성하기 위한 철도레일에 대한 윤활유 공급장치는, 공기통과; 상기 공기통에 공기를 주입하는 컴프레서와; 내부에 피스톤이 구비되어 피스톤 하부에는 윤활유가 충전되고 피스톤 상부에는 상기 공기통과 배관으로 연결되는 윤활유통과; 철도레일의 안쪽에 설치되며 상기 윤활유통 및 공기통과 각각 배관으로 연결되는 분사기와; 상기 공기통과 상기 윤활유통 및 분사기와의 연결배관에 설치되는 압력레귤레이터와; 상기 압력레귤레이터와 분사기 사이의 배관에 설치되는 솔레노이드 밸브와; 철로의 소정 위치에 부착 고정되어 지나가는 물체를 감지하는 위치감지센서와; 그리고, 상기 위치감지센서의 신호에 따라 상기 컴프레서를 작동하여 공기통에 공기를 주입함과 동시에 상기 솔레노이드 밸브를 제어하여 윤활유를 분사시키는 제어반을 포함하는 것을 특징으로 한다.Lubricating oil supply device for a railway rail for achieving the object of the present invention, the air passage; A compressor for injecting air into the reservoir; A lubrication oil passage provided with a piston inside the lubricating oil filled in the lower part of the piston and connected to the air cylinder and the pipe at the upper part of the piston; An injector installed inside the railway rail and connected to the lubrication oil tank and the air cylinder by pipes; A pressure regulator installed at a connection pipe between the air cylinder, the lubrication cylinder, and the injector; A solenoid valve installed in a pipe between the pressure regulator and the injector; A position detecting sensor for detecting an object passing by being fixed to a predetermined position of the railway; And a control panel that operates the compressor according to the signal of the position detection sensor, injects air into the air cylinder, and simultaneously controls the solenoid valve to inject lubricant.
이러한 본 고안에 따른 철도레일에 대한 윤활유 공급장치는 대부분 철로 가장자리에 세워 설치하는 소정의 케이스내에 설치되고, 분사기와 위치감지센서는 철로의 레일 가까이 설치된다.The lubricating oil supply device for the railroad rail according to the present invention is installed in a predetermined case that is installed mostly on the rail edge, the injector and the position sensor are installed near the rail of the rail.
이하, 본 고안에 따른 철도레일에 대한 윤활유 공급장치에 대해 첨부 도면을 참조하여 상세히 설명하고자 한다.Hereinafter, a lubricant supply device for a railroad rail according to the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안에 따른 철도레일에 대한 윤활유 공급장치의 구성도이다. 도면을 참조하면, 공기통(10)은 내부에 공기가 압축 저장되는 것으로 압축된 공기를배출하는 밸브(16)가 상부에 구비되며 하부에는 공기통(10)에 공기를 주입하는 컴프레서(12)가 연결 설치되어 있다. 공기통(10)의 상부에 구비된 밸브(16)에 연결된 제 1 배관(14)이 압력레귤레이터(20)와 연결되고, 여기서 분기되는 제 2 배관(22)은 윤활유통(30)의 상부에, 제 3 배관은 분사기(40)에 연결된다.1 is a block diagram of a lubricating oil supply device for a railway rail according to the present invention. Referring to the drawings, the air cylinder 10 is a compressed air storage therein is provided with a valve 16 for discharging the compressed air in the upper portion and the compressor 12 for injecting air into the air cylinder 10 is connected to the bottom It is installed. The first pipe 14 connected to the valve 16 provided in the upper portion of the reservoir 10 is connected to the pressure regulator 20, the branched second pipe 22 is the upper portion of the lubrication tank 30, The third pipe is connected to the injector 40.
상기 윤활유통(30)은 내벽을 실리더로 하여 작동하는 피스톤(31)이 내설되어 있고, 피스톤의 상부에는 제 2 배관(22)이 밸브(32)에 연결되고, 하부에는 제 4 배관(38)이 분사기(40)와 연결되어 있다. 또한 밸브(32)의 옆에는 윤활유통(30)에 주입되는 공기를 외부로 분출시킬 수 있는 소정의 체크밸브(33)가 구비되며, 하부에는 윤활유통(30)에 윤활유를 충전시키기 위한 공급구가 마련되는데, 이는 소정의 배관(34)과 밸브(36), 연결구(35)로 이루어진다. 여기에는 공급 충전되는 윤활유의 이물질을 걸러내기 위한 소정의 필터(37)가 구비되어 있다.The lubricating oil barrel 30 has a piston 31 which operates with an inner wall as a cylinder, and a second pipe 22 is connected to the valve 32 at an upper portion of the piston, and a fourth pipe 38 at a lower portion thereof. Is connected to the injector 40. In addition, the valve 32 is provided with a predetermined check valve 33 for ejecting the air injected into the lubrication oil barrel 30 to the outside, and the lower portion of the supply port for filling the lubrication oil tank 30 with lubricating oil. Is provided, which consists of a predetermined pipe 34, the valve 36, the connector (35). It is provided with a predetermined filter 37 for filtering foreign matters from the lubricating oil to be supplied and filled.
한편, 제 3 배관(24) 중에는 소정의 펄스파에 의해 작동하는 솔레노이드 밸브(60)가 장치되며, 이 밸브(60)는 컴프레서(12)와 함께 소정의 제어반(50)에 연결되어 있다. 또한 제어반(50)에는 철도차량의 위치를 감지하는 센서(70)가 연결되어 있다.On the other hand, the solenoid valve 60 which operates by a predetermined pulse wave is provided in the 3rd piping 24, This valve 60 is connected with the compressor 12 to the predetermined control panel 50. As shown in FIG. In addition, the control panel 50 is connected to the sensor 70 for detecting the position of the railway vehicle.
이렇게 구성되는 윤활유 공급장치는 분사기(40), 위치감지센서(70) 및 이들을 연결하는 배관 또는 선로를 제외한 모든 것들이 기차선로의 가장자리 부근에 세워 설치한 소정의 케이스(1)내에 장치되며, 이 케이스(1)로부터 기차 선로에 까지 연결된 보호관로(2) 내부에 배선이 이루어지며, 양쪽 레일(6) 가까이 설치된 보호캡(3)내에 분사기(40)가 각각 장치되고 보다 레일 가까이에는 위치감지센서(70)가장치된다.The lubricating oil supply device configured as described above is installed in a predetermined case 1 in which everything except the injector 40, the position sensor 70, and pipes or lines connecting them are installed near the edge of the train track. Wiring is made inside the protective pipe 2 connected from (1) to the train track, and the injector 40 is installed in the protective cap 3 installed near both rails 6, and the position detecting sensor ( 70) are installed.
상기 위치감지센서(70)는 선로의 곡선구간이 시작되는 지점의 앞에 설치되는데, 센서가 기차를 감지하여 윤활유를 분사하기까지 소요되는 시간을 고려하여 센서(70)의 장착 위치는 조금씩 달라질 수 있다. 여기서 미설명부호 4는 자갈층, 5는 침목이다.The position sensor 70 is installed in front of the start point of the curved section of the track, the mounting position of the sensor 70 may be slightly different in consideration of the time required for the sensor to detect the train and spray the lubricant. . Here, reference numeral 4 is a gravel layer, 5 is a sleeper.
이와 같이 장치된 윤활유 공급장치에 의하면, 기차가 선로의 곡선구간을 진입해 들어오면 위치감지센서(70)에서 이를 감지하고, 그 감지신호가 제어반(50)에 입력된다. 제어반(50)에서는 상기 위치감지센서(70)의 반응에 따라 소정의 제어신호(펄스파 등)를 발생하여 컴프레서(12)를 연속적으로 작동시키고 솔레노이드 밸브(60)는 일정 간격으로 작동시키게 된다. 컴프레서(12)의 작동에 의해 공기통(10)에 공기가 주입되면 압력레귤레이터(20)에서는 압력조절을 위해 공기통(10)내의 공기를 제 2 및 제 3 배관(22)(24)을 통해 밀어내게 되고, 제 2 배관(22)을 통해 밀려온 공기가 윤활유통(30)의 피스톤(31)을 가압하여 하부에 충전된 윤활유는 제 4 배관(38)을 통해 분사기로 공급된다. 또한 제 3 배관(24)에도 공기 압력을 계속 높아지면서 솔레노이드 밸브(60)가 작동되어 공기가 분사기(40)에 공급되면서 윤활유를 분사기 외부로 분사하게 되는 것이다. 이렇게 윤활유는 기차가 지나가는 동안 레일의 안쪽부분, 즉, 기차 바퀴와 접촉하는 부분에 분사하게 되는 것이다.According to the lubricating oil supply device provided as described above, when the train enters the curved section of the track, the position detecting sensor 70 detects this, and the detection signal is input to the control panel 50. The control panel 50 generates a predetermined control signal (pulse wave, etc.) according to the reaction of the position detection sensor 70 to continuously operate the compressor 12, and the solenoid valve 60 is operated at regular intervals. When air is injected into the reservoir 10 by the operation of the compressor 12, the pressure regulator 20 pushes the air in the reservoir 10 through the second and third pipes 22 and 24 to control the pressure. Then, the air pushed through the second pipe 22 pressurizes the piston 31 of the lubrication oil barrel 30 so that the lubricating oil filled in the lower part is supplied to the injector through the fourth pipe 38. In addition, while the air pressure is continuously increased in the third pipe 24, the solenoid valve 60 is operated to supply lubricating oil to the outside of the injector while air is supplied to the injector 40. In this way, the lubricant is sprayed on the inside of the rail, in contact with the train wheels, as the train passes by.
이러한 장치의 동작은 기차의 후단이 위치감지센서(70)를 완전히 지나가게 되면 멈추게 된다.The operation of this device stops when the rear end of the train passes completely through the position sensor 70.
이상에서 상세히 설명한 바와 같이, 본 고안에 따른 철도레일에 대한 윤활유 공급장치는 선로의 곡선 구간에 설치되어 그 선로에 기차가 지나가는 동안에만 윤활유를 레일에 공급하게 되므로 과다한 윤활유의 소모를 방지할 수 있을 뿐 아니라 오작동이 발생하지 않게 되는 것이다. 이러한 장치에 의해 선로의 곡선 구간에서 쾌적한 철도차량의 운행이 이루어지게 된다.As described above in detail, the lubricating oil supply device for the railroad rail according to the present invention is installed in the curved section of the track to supply lubricant to the rail only while the train passes on the track so that it is possible to prevent excessive consumption of lubricating oil. In addition, malfunctions will not occur. By such a device, a comfortable railway vehicle is operated in a curved section of the track.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990019715U KR200177134Y1 (en) | 1999-09-14 | 1999-09-14 | A grease supply apparatus for railway line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990019715U KR200177134Y1 (en) | 1999-09-14 | 1999-09-14 | A grease supply apparatus for railway line |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990041332A Division KR20010028848A (en) | 1999-09-27 | 1999-09-27 | A grease supply apparatus for railway line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR200177134Y1 true KR200177134Y1 (en) | 2000-04-15 |
Family
ID=19588730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019990019715U KR200177134Y1 (en) | 1999-09-14 | 1999-09-14 | A grease supply apparatus for railway line |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200177134Y1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030089389A (en) * | 2002-05-16 | 2003-11-21 | 한윤제 | Paint injection apparatus |
| KR100993285B1 (en) | 2010-07-01 | 2010-11-10 | 주식회사 케이이엘 | Spraying apparatus of fluid to mitigate train noise |
| KR101739031B1 (en) | 2014-12-24 | 2017-05-23 | 주식회사 포스코 | Oil inunction device of rail |
| CN115111516A (en) * | 2022-07-20 | 2022-09-27 | 中南大学 | Rail lubricating system based on guard rail structure |
-
1999
- 1999-09-14 KR KR2019990019715U patent/KR200177134Y1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030089389A (en) * | 2002-05-16 | 2003-11-21 | 한윤제 | Paint injection apparatus |
| KR100993285B1 (en) | 2010-07-01 | 2010-11-10 | 주식회사 케이이엘 | Spraying apparatus of fluid to mitigate train noise |
| KR101739031B1 (en) | 2014-12-24 | 2017-05-23 | 주식회사 포스코 | Oil inunction device of rail |
| CN115111516A (en) * | 2022-07-20 | 2022-09-27 | 中南大学 | Rail lubricating system based on guard rail structure |
| CN115111516B (en) * | 2022-07-20 | 2024-05-31 | 中南大学 | Rail lubrication system based on guard rail structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2003523C (en) | Intelligent on-board rail lubrication system for curved and tangent track | |
| KR200177134Y1 (en) | A grease supply apparatus for railway line | |
| CN103946454A (en) | Foreign matter removal device for track branching section | |
| CA2533982A1 (en) | Gage side or field side top-of-rail plus gage corner lubrication system | |
| US9016436B2 (en) | Device for wetting or lubricating a rail head | |
| CN112361197B (en) | Fixed type rail lubricating system and control method thereof | |
| KR20010028848A (en) | A grease supply apparatus for railway line | |
| US20090050409A1 (en) | Device for applying liquid on rail | |
| CN102874333B (en) | Engineering machine, crawler tightening device and automatic oil injection system thereof | |
| JP2006327525A (en) | Wheel flange oiling device and its control method | |
| JP2002037068A (en) | Automatic oil applying device for rail | |
| EP1232925B1 (en) | Rail gauge face lubricating apparatus | |
| KR100993285B1 (en) | Spraying apparatus of fluid to mitigate train noise | |
| CN207813870U (en) | A kind of integrated installation type rim lubricating device of included air supply system | |
| JP2003127858A (en) | Oil coating device for rail | |
| CN207333069U (en) | A kind of automotive fuel oil system | |
| KR101173097B1 (en) | Apparatus for pumping lubricant in the lubrication system | |
| WO2018151590A1 (en) | Rail lubrication system | |
| KR200430919Y1 (en) | Vibrating Sensing type Apparatus adhered by Rail Side, Coating Oil on Rail | |
| JPH11173495A (en) | Vehicle mounting type lubrication method and device | |
| CN107725340A (en) | A kind of integrated installation type rim lubricating device for carrying air supply system | |
| KR102178687B1 (en) | Fine dust inflow reduce equipment of railway platform in tunnel | |
| KR0182670B1 (en) | Oil supplying device of repair equipment | |
| CN219682063U (en) | Dust suppression system for railway screen scarifier and railway screen scarifier system | |
| KR102324109B1 (en) | Double blocking soundproof wall system to improve noise pollution environment and a double blocking soundproof method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20010122 Year of fee payment: 3 |
|
| LAPS | Lapse due to unpaid annual fee |