Description Conveyor Belt Anti-deviation Device Editing This Paragraph System Structure

The hydraulic system consists of two parts: signal control and hydraulic power. The signal control part is used to drive the control valve in the hydraulic power section. The hydraulic power section is represented by a loop. To indicate the interrelationship between different functional components. The hydraulic source contains a hydraulic pump, an electric motor and hydraulic auxiliary components; the hydraulic control section contains various control valves for controlling the flow of the working fluid

The hydraulic system consists of two parts: signal control and hydraulic power. The signal control part is used to drive the control valve in the hydraulic power section. The hydraulic power section is represented by a loop. To indicate the interrelationship between different functional components. The hydraulic source contains a hydraulic pump, an electric motor and hydraulic auxiliary components; the hydraulic control part contains various control valves for controlling the flow, pressure and direction of the working fluid, and the execution part contains a hydraulic cylinder or a hydraulic motor, which can be selected according to actual requirements.

The quality of a hydraulic system depends not only on the rationality of the system design and the performance of the system components, but also on the pollution protection and treatment of the system. The pollution of the system directly affects the reliability of the hydraulic system and the service life of the components. Statistics, about 70% of hydraulic system failures at home and abroad are caused by pollution.

  At the production site, due to production planning and technical conditions, the fault diagnosis personnel are required to diagnose the fault of the hydraulic equipment accurately, simply and efficiently; the maintenance personnel are required to use the existing information and technical conditions on site to minimize disassembly and assembly. Workload, save maintenance time and cost, use the simplest technical means, in the shortest possible time, accurately find out the fault location and the cause of the fault and repair it, so that the system can resume normal operation, and strive to stop in the future A similar failure occurred.

General principles for hydraulic system diagnostics

Correct analysis of faults is the premise of troubleshooting; most of the system faults do not occur suddenly, and there are always signs before they occur. When the precursors develop to a certain extent, they will cause faults. The causes of the malfunction are various and there is no fixed law to be found. Statistics show that about 90% of the obstacles in the hydraulic system are caused by poor management. In order to diagnose faults quickly, accurately and conveniently, it is necessary to fully understand the characteristics and laws of hydraulic faults, which is the basis of fault diagnosis.

The idea of parameter measurement to diagnose faults is as follows. When any hydraulic system is working properly, the system parameters work near the design and set values. If these parameters deviate from the predetermined value during operation, the system will malfunction or may appear. malfunction. That is, the fault generated by the hydraulic system is the abnormal change of the operating parameters of the system. Therefore, when the hydraulic system fails, one component or some components are faulty, and it can be further determined that a certain point or points in the loop have deviated from the predetermined value.