Agricultural machinery vehicle Hydraulic motor New direction of improvement: improve the function of various hydraulic press components. Investigate the common faults of hydraulic motor, and implement the technical nature of active maintenance. The intelligent detection of hydraulic motor faults shall be realized as far as possible, the development and scientific research level of authoritative expert system shall be improved, a detailed authoritative expert knowledge base system with learning and training function shall be set up, and the professional knowledge in the software and knowledge base system shall be used to calculate the causes of common faults, and the maintenance scheme and preventive measures shall be clearly proposed. It is necessary to further develop the universal software tools of the authoritative expert system for hydraulic motor fault detection, and develop the hydraulic motor self compensation system, including self adjustment and self calibration, to carry out compensation before the occurrence of common faults, which is the diligent direction in the hydraulic machine field.

Hydraulic press technology has total kinetic energy consumption in the whole process of converting mechanical kinetic energy into working pressure energy and reverse conversion. To reduce the loss of kinetic energy, try to deal with the following problems: reduce the internal working pressure loss of components and systems to reduce the loss of output power; Reduce or clear the throttle valve loss of the hydraulic motor, Manufacturer of cycloidal hydraulic motor Try to avoid the overflow that is not necessary for safety; Select negative pressure technical and new sealing materials to reduce friction loss; Improve the function of hydraulic motor, select load sensor system, secondary adjustment system and accumulator control circuit.

Mechatronics can implement flexible production and intelligent system of hydraulic motor of hydraulic vehicle, and make full use of it Hydraulic transmission The system has the advantages of high load rate, low inertia force and fast response, and its key development trends are as follows: hydraulic motors will have the previous hydraulic development system and open-loop gain control algorithm system converted to closed-loop control proportional servo motor system, and work together to standardize the working pressure, total flow, position, temperature, speed and other sensors; Improve the function of hydraulic press components, and integrate the electromechanical integration requirements in the function, stability, intelligent system and other aspects. The development trend and the high frequency, low power consumption magnetic induction motor control components of the electronic computer instant socket; The total flow, working pressure, temperature, oil contamination and other standard values of the hydraulic motor will implement the automatic measurement and control system and diagnosis; Electronic devices and immediate control elements will be widely used. For example, motor controlled hydraulic oil pump can implement various adjustment methods of hydraulic oil pump, implement soft start, effectively distribute output power, fully automatic maintenance, etc; Rely on computer interface, implement high-quality information content system, and simplify the adjustment, dispute and maintenance of hydraulic motor.

Leakage control includes two aspects: avoiding natural environmental pollution caused by liquid leakage to the outside world and damage to the hydraulic motor caused by environmental factors. In the future, we will develop leak free components and systems, such as integrated and composite components and systems, implement pipe free docking, research and develop new sealing and leak free tee joints, and electronic fuel injection pump components. No leakage will be one of the key directions for the global hydraulic press industry to work hard in the future.

Strictly control the pollution in the whole process of commodity production, develop a closed system, and avoid the invasion of external pollutants into the system; The design scheme of components and hydraulic motors should be improved to make them have higher pollution resistance. We will work together to develop high efficiency filter materials and filter devices with strong pollution resistance. Scientific research on automatic measurement of pollution; Develop water and oil separation purification treatment equipment and dehumidification elements, and develop filtration Yuanjiang and inspection equipment that can eliminate vapor, moisture, compounds and microbial strains in oil.