Part inspection car hand bearing inspection shaft temperature method and standard

Part inspection car hand bearing inspection shaft temperature method and the standard 2019 - 04 - 22 rolling bearing is the important component of the course of railway wagon, the quality of its use directly related to the safe operation of vehicles. Dynamic thermal shaft bearing fault endangers safety, at the same time, interferes with normal transport order. Railway wagon hot shaft failure must be found early, correct judgment, properly handle, to ensure driving safety. 1. With finger touch bearing temperature measuring location: back ( Three fingers) Touch the lower bearing outer ring diameter 1/3 ( The back of the train operation direction) Touch bearing for 3 -, fingers back 5 seconds or lower 1/3 point temperature of bearing outer ring diameter. 2. Hand touch the axle temperature, perform 'three contrast: around the same axis side comparison, the same car bearing contrast on the same side, the same side each car. 3. Hand touch the axle temperature, on both sides of the inspection car across the member strict synchronous parallel operation, do call response, serious contrast temperature. Found that the high temperature abnormal signs, it must be point thermometers were used to detect temperature, and inform the foreman, shift supervisor, director of the consultation, inspection car part and check whether the position of bearing oil, and whether the wheel tread scratches, the car number, digits, temperature records in the system - 15. The foreman, director of consultation on duty, if must uncouple, car number, digits, feedback to the attendant, such as temperature, bearing sign board content, attendant will situation to fill in the infrared hot box handle registration book. 4. According to the relevant provisions of the ministry of railways, except for the unimproved SKF197726 type and AP130 ( 150). Type of rolling bearing ( Modified SKF197726 type, three shaft end bolt head are painted white fluorescent) , the rest of the rolling bearing outer ring temperature within + 40 ℃, the temperature outside are all normal operating temperature. Than normal operating temperature for the heat, more than the normal operation when the temperature is above 30 ℃ to heat. Judgment of micro or strong hot, should handle uncouple further judgment. 5. Type of railway wagon unimproved SKF197726 rolling bearing, check the bearing operating temperature, the outside temperature + 40 ℃; 353130 a or B type bearing temperature rise more than 55 ℃ or absolute temperature exceeds 100 ℃ can't continue to run, should handle uncouple. 6. The AP130 ( 150). Rolling bearing ( Installed in 25 tons of axle load of truck and express van tra nsport use) Allows the use of the temperature, the temperature of 55 ℃, the absolute temperature of 100 ℃. （ Railway vehicle resource platform)