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How to Diagnose the Failure of Hydraulic Shearing Machine?

If the hydraulic shearing machines are used for long periods of time, there will be some failures. How should we diagnose the failure of the hydraulic shearing machine during daily use?

Diagnostic methods for common faults
The CNC hydraulic shearing machine is composed of mechanical, hydraulic, electrical and other devices, so there are many kinds of failures. A certain fault phenomenon may be caused by many factors. As a result, to analyze hydraulic failure, we must be able to understand the schematic diagram of hydraulic system and have a general understanding of the function of each element in the schematic diagram, then we can analyze and judge according to the fault phenomenon. It is difficult to understand the situation of working fluid in the hydraulic system. Therefore, it brings more difficulties for the analysis and diagnosis, so it is required that people have the ability to analyze and judge faults. It is necessary to find the failure cause in the complicated relationship among mechanical, hydraulic, electric and others.

Simple troubleshooting
The simple fault diagnosis method is the most common method. It relies on the personal experience of the maintenance personnel and makes use of simple instruments to understand the working conditions of the system objectively based on the faults occurring in the hydraulic system, and analyzes the causes and locations of the failures. The concrete practice is as follows:

1) ask the operator for the operation condition of the equipment. Among them: whether the hydraulic system work is normal; there is no abnormal phenomenon of hydraulic pump; the time and result of the cleaning of hydraulic oil for hydraulic shearing machine; The cleaning and replacement of filter core; whether the hydraulic components are adjusted before the failure; whether the sealing elements have been replaced; the abnormal phenomena of the hydraulic system before and after failure.

2) we should observe the actual condition of the system work of the hydraulic shearing machine, and observe the problems of system pressure, speed, oil, leakage, vibration, etc.

3) listen to the sound of hydraulic shearer system, such as: impact sound, pump noise and abnormal sound; determine whether the hydraulic system is working properly.

4) determine whether the working state of the moving parts is normal in the degree of tightness, vibration, crawling and joints.

In conclusion, the method of simple diagnosis of hydraulic shearing machine is a simple qualitative analysis, which has a wide range of practicability for quick judgment and troubleshooting.


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