Dalan Hydraulics tells you how to find the fault of the hydraulic system
2020-10-08 12:15:16
Do you know how to find faults in the hydraulic system? Dalan Hydraulics tells you to proceed from the following five aspects.
Do you know how to find faults in the hydraulic system? Dalan Hydraulics tells you to proceed from the following five aspects.
1, according to the hydraulic system map
Hydraulic system diagram to find the hydraulic fault when the method: 1 is mainly "grab two ends", that is, the power source (oil pump) and actuators (cylinder, motor);
2 is the "intermediate", that is, the piping and control elements that pass between the power source and the actuator.
3 When “grabbing two endsâ€, it is necessary to analyze whether the fault is in the oil pump, the cylinder and the motor itself.
4 "In the middle", in addition to paying attention to whether the fault is out of the hydraulic components on the connected line, special attention must be paid to knowing which control method is used when the system is transferred from one working state to another, and whether the control signal is In case of mistakes, it is necessary to check the physical objects one by one. It is necessary to pay attention to the mutual interference between the main oil passages and between the main oil passages and the control oil passages.
2, using the cause and effect map to find
1 Using the causal map (also known as the fishbone diagram) analysis method to analyze the failure of the hydraulic equipment, not only can quickly find the main cause of the fault, but also accumulate experience in troubleshooting.
2 causal graph analysis method, which can be closely combined with maintenance management and fault finding, is widely used.
3. Application of ferrography technology to diagnose and monitor the failure of the hydraulic system
1 The ferrography technology is based on the wear of the mechanical friction pair. The wear particles and other contaminated particles in the hydraulic oil are separated by means of a ferrite spectrometer and made into an iron spectrum, which is then placed in a ferrography or scanning electron. Observed under a microscope, or sequentially deposited in a glass tube according to size, and quantitatively detected by an optical method.
2 Through the above analysis, important information about the wear and tear in the system can be accurately obtained. Based on this, the wear phenomenon is further studied, the wear state is monitored, the fault precursor is diagnosed, and the system failure prediction is finally made.
3 Ferrography technology can be effectively applied to the detection, monitoring, analysis of wear process and fault diagnosis of hydraulic fluid system in engineering machinery, and has the advantages of intuitive, accurate and information.
4. Use the analysis table of fault phenomenon and fault cause to find
According to the work practice, summarize the relationship between the fault phenomenon and the cause of the fault (or provided by the manufacturer), which can be used for the search and processing of general hydraulic faults.
5, using the device's self-diagnosis function to find
With the continuous development of electronic technology, at present, many large and medium-sized construction machinery adopt electronic computer control, through interface circuit and sensing technology, self-diagnosis of its hydraulic system, and display on the fluorescent screen, the use and maintenance can be based on Display the contents of the fault for troubleshooting.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
Copyright http: / (Dalan Motor) Reprint, please indicate the source
Http://news.chinawj.com.CN Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Do you know how to find faults in the hydraulic system? Dalan Hydraulics tells you to proceed from the following five aspects.
1, according to the hydraulic system map
Hydraulic system diagram to find the hydraulic fault when the method: 1 is mainly "grab two ends", that is, the power source (oil pump) and actuators (cylinder, motor);
2 is the "intermediate", that is, the piping and control elements that pass between the power source and the actuator.
3 When “grabbing two endsâ€, it is necessary to analyze whether the fault is in the oil pump, the cylinder and the motor itself.
4 "In the middle", in addition to paying attention to whether the fault is out of the hydraulic components on the connected line, special attention must be paid to knowing which control method is used when the system is transferred from one working state to another, and whether the control signal is In case of mistakes, it is necessary to check the physical objects one by one. It is necessary to pay attention to the mutual interference between the main oil passages and between the main oil passages and the control oil passages.
2, using the cause and effect map to find
1 Using the causal map (also known as the fishbone diagram) analysis method to analyze the failure of the hydraulic equipment, not only can quickly find the main cause of the fault, but also accumulate experience in troubleshooting.
2 causal graph analysis method, which can be closely combined with maintenance management and fault finding, is widely used.
3. Application of ferrography technology to diagnose and monitor the failure of the hydraulic system
1 The ferrography technology is based on the wear of the mechanical friction pair. The wear particles and other contaminated particles in the hydraulic oil are separated by means of a ferrite spectrometer and made into an iron spectrum, which is then placed in a ferrography or scanning electron. Observed under a microscope, or sequentially deposited in a glass tube according to size, and quantitatively detected by an optical method.
2 Through the above analysis, important information about the wear and tear in the system can be accurately obtained. Based on this, the wear phenomenon is further studied, the wear state is monitored, the fault precursor is diagnosed, and the system failure prediction is finally made.
3 Ferrography technology can be effectively applied to the detection, monitoring, analysis of wear process and fault diagnosis of hydraulic fluid system in engineering machinery, and has the advantages of intuitive, accurate and information.
4. Use the analysis table of fault phenomenon and fault cause to find
According to the work practice, summarize the relationship between the fault phenomenon and the cause of the fault (or provided by the manufacturer), which can be used for the search and processing of general hydraulic faults.
5, using the device's self-diagnosis function to find
With the continuous development of electronic technology, at present, many large and medium-sized construction machinery adopt electronic computer control, through interface circuit and sensing technology, self-diagnosis of its hydraulic system, and display on the fluorescent screen, the use and maintenance can be based on Display the contents of the fault for troubleshooting.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
Copyright http: / (Dalan Motor) Reprint, please indicate the source
Http://news.chinawj.com.CN Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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