Steel rail ultrasonic on-line detection system and control method thereof

Abstract

The invention provides a rail ultrasonic on-line detection system and its control method. The equipment includes a bracket, a roller table, a rail head tread landing gear, a rail bottom landing gear, a rail head right landing gear, a rail head left landing gear, and a rail waist Left landing gear, ultrasonic probe, No. 1 through-beam photoelectric, No. 2 through-beam photoelectric, No. 3 through-beam photoelectric, No. 4 through-beam photoelectric, rail position detection device, rail shape detection device, controller and ultrasonic detector; When the through-beam photoelectric senses the rail, the controller controls the corresponding landing gear to move up and down, thereby driving the ultrasonic probe installed on the landing gear to realize the flaw detection of each part of the rail. When a defect is detected inside the rail, the rail position detection The device outputs the specific position of the defect on the rail, and stops the flaw detection. It has the outstanding advantages of wide detection range, fast detection speed and high detection accuracy.

Description

technical field

[0001] The invention relates to the field of rail flaw detection, in particular to an ultrasonic on-line rail detection system and a control method thereof. Background technique

[0002] my country's rail traffic is busy, and the safety of rail traffic is of great importance. The quality of rails is directly related to driving safety. Defects on the rail material, such as dark cores, small cracks, voids or impurities, gradually develop into a source of fatigue through repeated loads of the wheels, and continue to expand to the inside of the rail head, so that the effective cross-section of the rail is quickly weakened, and finally A broken track will have serious consequences.

[0003] In order to ensure the safety of railway transportation, the steel rails must be strictly inspected one by one before leaving the factory, and only when they meet the inspection standards stipulated by the state can they be put into use. At present, the commonly used flaw de...

Images