Hydraulic pressure is a method of energy transmission and control that relies on liquid pressure to perform work. As we all know, hydraulic systems have a very high power-to-weight ratio (energy that can be transmitted with the same weight) and are widely used in industrial machinery and mobile machinery. It is called industrial hydraulic pressure and walking hydraulic pressure respectively. Due to the advancement of technology, more and more hydraulic transmissions have replaced other transmission methods (mechanical transmission and electric transmission).
During the product shipment process, the volumetric efficiency, mechanical efficiency, leakage characteristics of the hydraulic pump, the sensitivity of the hydraulic valve operation, the coordination of the actions of the valves, the volumetric efficiency of the motor, and the leakage of the oil cylinder are all parameters that must be known. The various factory test reports are of course technical information that customers must request. The following is a valve test report. The corresponding test equipment can quickly collect various technical indicators and generate curves, and the customer's needs have been reflected.
Due to the complexity and inaccuracy of fluid mechanics and the unknown characteristics of materials, hydraulic pressure is an experimental science. During the research and development stage, from fatigue testing of materials to hydraulic components (pumps, valves, motors, cylinders, hydraulic pressure, etc.) Attachments, etc.) The fluid performance tests cannot be separated from the tests. The hydraulic components that have not been tested are unknown, and the performance parameters are ambiguous. Many specific indicators are uncertain, and only after many tests. only by changing the design ideas and design methods, and by combining the relevant elements in an optimal way, can a good product be possible. Like the equipment below, all noise sources are completely shielded, which is very necessary for the noise detection of the pump or motor.
In the repair environment, if a faulty hydraulic pump, valve, cylinder, or motor can be debugged on the machine, it is easy to find out the problem, especially the hydraulic system of construction machinery. If there is a problem, if there is a single component, The ability to detect can quickly determine the problem component, because the current hydraulic system is quite complicated, it is also caused by the car, pumps, valves, oil filters, etc., if you blindly suspect that one of them is obvious, it will be caused by improper operation. Enlarge the fault so that the original non-defective component becomes the victim and becomes the problem component. At this time, if the suspected component can be isolated and inspected in a monitored system, this situation is equivalent to a fractured person entering the right place. It is also necessary to detect the problem by X-ray in the expert clinic of the hospital.
The result is an accurate and optimal solution that does not magnify the problem. Many masters are very experienced, but now more and more complicated systems and controls may not be fully understood even by the commissioning experts of the OEM. Of course, it is very necessary to detect and adjust the technical parameters of the host through appropriate testing equipment, such as This is the adjustment of the balance valve of the motor, and sometimes it becomes extremely difficult to debug on the entire vehicle, such as adjusting the constant power of the hydraulic pump and adjusting the pressure difference of the load-sensing valve. The following simple motor test device will be a good helper for secondary remanufacturing or repair.