Logic Analysis (1) the application of traditional progressive approximation. The need for all possible causes of the above analysis of each judge and testing, ultimately identify the cause of the malfunction and cause a failure of specific components. This method is cumbersome diagnostic procedures shall be carried out a large number of assembly and disassembly, verification, low efficiency, long duration, hydraulic automation equipment installation, and only qualitative analysis, diagnosis is not accurate enough. (2) Application fault diagnosis system based on the measured parameters. Just when the system piping, the pump outlet a, b and the cylinder valve before the inlet valve c Three set double links, the use of fault diagnosis detection circuit, in a few seconds the system failure limit within a region and diagnose the fault according to the measured parameter values. The detection process is as follows: (a) failure diagnosis circuit and a test port is turned on, open the valve and unscrew 2 relief valve 7, and then shut valve 1, then adjust the pressure relief valve 7 can be observed from the pressure gauge 4 changes in work pressure pump to see if it can exceed 8.0Mpa high pressure and rise to the desired value. If it is not then the failure is the pump itself, if the description does not pump failure, Qingdao hydraulic automation equipment, should continue testing. (B) If the pump is no fault, then use the troubleshooting loop detection b point pressure changes. If the b point exceed 8.0Mpa working pressure and high pressure up to the desired value, then the system main relief work, the need to continue testing. If no relief valve failure, by detecting the pressure change of c point can determine whether proportional valve or valve failure. By detecting leakage inside the final cause of the malfunction is caused by severe vane pump. Removing the rear-known pump, pump stator blades cause abnormal wear and tear due to poor lubricant, causing internal leakage increases, not to mention the high system pressure, and further found to be due to the water cooling system into the oil leak caused by oil emulsion and loss of lubrication caused. Scraper hydraulic system of a complete hydraulic system consists of five parts, namely, power components, actuators, control components and auxiliary components (Annex) and hydraulic oil. The role of dynamic element dynamic components of the original motivation of the mechanical energy into fluid pressure energy, hydraulic automation equipment applications, refer to the hydraulic system of pumps, which provides power to the entire hydraulic system. Design of the hydraulic pump gears are generally pumps, vane pumps, piston pumps and screw pumps. Action actuators actuators (such as hydraulic cylinders and hydraulic motors) is the pressure of the liquid can be converted to mechanical energy, hydraulic automation device functions, drive the load for linear reciprocating motion or rotary motion. Control element control element (ie the various hydraulic valves) to control and regulate fluid pressure, flow rate and direction in the hydraulic system. Depending on the control functions, hydraulic valves can be divided into pressure control valves, flow control valves and directional control valves. Pressure control valve comprises a pressure relief valve (safety valve), valves, sequence valves, pressure switch, etc; the flow control valve includes a throttle valve, regulating valve, flow diversion valve and the like; directional control valve includes a check valve, hydraulic control check valves, shuttle valves, valve and the like. Depending on the control, hydraulic valves can be divided off control valve, fixed value control valves and proportional control valve. Auxiliary components Auxiliary components, including fuel tanks, oil filters, coolers, heaters, accumulators, pipe and pipe fittings, seals, quick connectors, high-pressure valve, hose assembly, pressure joints, pressure gauge, oil level gauge , oil temperature meter. Hydraulic oil hydraulic oil in the hydraulic system of the working medium energy transfer, a variety of mineral oil, emulsion oil hydraulic molding Hop categories. Qingdao hydraulic automation equipment, subfamily automation equipment, hydraulic automation equipment maintenance provided by the Texas subfamily hydraulic machinery automation equipment Limited. Qingdao hydraulic automation equipment, subfamily automation equipment, hydraulic automation equipment maintenance subfamily Texas Hydraulic Machinery Automation Equipment Co., Ltd. (dzykzdh.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Mr.Song.