Continuous caster mould oscillation servo cylinder internal leakage detection device and detection method

Abstract

The invention discloses a continuous caster mould oscillation servo cylinder internal leakage detection device which is used for detecting whether a servo cylinder (4) has internal leakage and comprises an adjusting screw (2), a hydraulic cylinder (5), a PLC (programmable logic controller) module (6), a valve station (12) and a pressure sensing module, wherein the adjusting screw (2) is connected with the servo cylinder (4) and used for adjusting the position of a piston of the servo cylinder (4), the valve station (12) is mounted on the servo cylinder (4), the pressure sensing module is mounted on the valve station (12) and used for detecting pressure change of an oil return cavity, the hydraulic cylinder (5) is used for outputting high-pressure oil for the servo cylinder (4), and the PLC module (6) is used for controlling the hydraulic cylinder (5) and displaying a pressure curve of the oil return cavity measured by the pressure sensing module. The online service life of the servo cylinder can be prolonged, the equipment failure rate of the servo cylinder is reduced, the production operation rate of a continuous caster is increased, and the device has the advantages of simplicity in operation, small size, detection accuracy and low cost.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgical machinery and equipment, in particular to a device and method for detecting leakage in a vibration servo cylinder of a mold of a continuous casting machine. Background technique [0002] The crystallizer vibration servo cylinder of continuous casting machine is one of the most critical components in the crystallizer vibration device. The vibration accuracy is very strict. This requires that the vibration servo cylinder used on-line must have good performance. If the servo cylinder is worn or the seal is damaged, There will be internal leakage, the vibration synchronization error of the servo cylinder will exceed the standard, and the production will not be able to run normally. In the production process, because the internal leakage of the servo cylinder was not detected in advance, no vibration or abnormal vibration occurred many times after online use, resulting in forced sh...

AI Technical Summary

Problems solved by technology

[0002] The crystallizer vibration servo cylinder of continuous casting machine is one of the most critical components in the crystallizer vibration device. The vibration accuracy is very strict. This requires that the vibration servo cylinder used on-line must have good performance. If the servo cylinder is worn or the seal is damaged, There will be internal leakage, the vibration synchronization error of the servo cylinder will exceed the standard, and the production will not be able to run normally

In the production process, because the internal leakage of the servo cylinder was not detected in advance, no vibration or abnormal vibration occurred many times after online use, resulting in forced shutdown. Therefore, the long-term use of the servo cylinder must be tested for internal leakage before it can be used online to avoid After going online, there is a downtime accident

[0003] At present, there are mainly two detection methods for vibration servo cylinders of continuous casting machines in China: (1) Simply disassemble the two-cavity pipeline of the servo cylinder to visually detect the degree of internal leakage. For vibration servo cylinders that require high precision, this detection method is more accurate Poor; (2) Although the large-scale servo cylinder internal leakage detection platform has more complete functions and higher accuracy, it is more expensive, larger in size, and more complicated in operation

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