Small excavator hydraulic technology new achievements

Intelligent control: with the continuous development of the Internet of Things, artificial intelligence and other technologies, the hydraulic system of small excavators is beginning to combine with these technologies to achieve intelligent control. The pressure, flow, temperature and other parameters of the hydraulic system are monitored in real time through sensors, and the data are transmitted to the controller for analysis and processing, thus achieving precise control and optimal adjustment of the hydraulic system. For example, Rexroth’s LUDV technology is a load-sensitive system that automatically adjusts the output flow and pressure of hydraulic pumps according to load demand, improving the system’s energy efficiency and handling performance.
Energy saving and high efficiency: The application of new hydraulic components and technologies has made significant progress in energy saving in the hydraulic systems of small excavators. The use of variable pumps and variable motors and other components can adjust the flow and pressure of hydraulic oil according to the actual load demand, avoiding the overflow loss and energy waste that exists in the traditional quantitative pump system. In addition, optimising the design of the hydraulic system to reduce internal leakage and friction loss of hydraulic components also helps to improve the energy efficiency of the system.
Enhanced Reliability: In order to improve the reliability and durability of the small excavator under severe working conditions, the design and material selection of the hydraulic system has been continuously improved. High-strength, corrosion-resistant materials are used to manufacture hydraulic components to improve their anti-wear and anti-fatigue properties. At the same time, the sealing performance of the hydraulic system is strengthened to prevent external impurities from entering the system and reduce the probability of failure. For example, Bosch Rexroth obtained the patent of ‘Linear Variable Differential Pressure Transformer and Hydraulic Valve’ in Changzhou, which optimises the performance of the hydraulic valve through accurate displacement detection, which not only increases the assembly convenience, but also effectively buffers the vibration, and improves the service life and stability of the system.
Integrated design: The degree of integration of the hydraulic system is increasing, integrating multiple hydraulic components into one module, reducing piping connections and leakage points, and improving the compactness and reliability of the system. At the same time, the integrated design also facilitates installation and maintenance, reducing production and use costs.
Enhanced environmental performance: With the increasing awareness of environmental protection, the hydraulic technology of small excavators is also developing in the direction of environmental protection. The use of biodegradable hydraulic oil and other environmentally friendly hydraulic media reduces pollution of the environment. At the same time, reducing the noise and vibration of the hydraulic system improves the working environment.
In summary, the hydraulic technology of small excavators is developing continuously in the direction of intelligence, energy saving and efficiency, high reliability, integration and environmental performance improvement. The progress of these technologies not only improves the working efficiency and economy of small excavators, but also enhances their adaptability and reliability under various complex working conditions, providing strong support for the sustainable development of the construction machinery industry.