Development Trend of Electro-hydraulic Integration

The hydraulic system is actually an energy conversion device, which transfers energy by means of the pressure energy of the oil through the change of the closed volume.  It is mainly composed of five parts, including power components (hydraulic pump), executive components (hydraulic motor, hydraulic cylinder), control components (hydraulic control valve), auxiliary components (hydraulic oil pipe, pipe joint) and hydraulic oil.  The hydraulic system has high transmission efficiency, constant power output control, full use of power, simple system structure, output speed stepless speed regulation, positive and negative operation, high speed rigidity, easy action; in addition, the advantages of large power ratio, strong adjustment function and flexible configuration complement the working conditions of construction machinery, making it difficult to replace in the construction machinery transmission system for a long time. 

Hydraulic technology is constantly being improved in the development, the requirements for component manufacturing accuracy and performance, the requirements for the operator itself, the impact of hydraulic oil on the environment and the hydraulic system are gradually being improved.  Hydraulic technology from the initial promotion of high load capacity to replace the general transmission of machinery to today's "Made in China 2025" on the continuous pursuit of intelligent, high-precision control, hydraulic technology has gone through a number of breakthrough development milestones.  At present, hydraulic technology is developing in the direction of high pressure, high speed, high power density, high efficiency, low noise, high reliability, high integration and intelligence. At the same time, many important achievements have been made in the direction of perfecting proportional control, servo control, digital control and electromechanical integration.  The current hydraulic technology is not only a transmission mode, but also a control means. 

In the future, electro-hydraulic products will become the mainstream trend of hydraulic technology development, which puts forward higher requirements for simplified operation and high efficiency and energy saving.  It is an effective solution to reasonably utilize surplus energy or adopt flexible control to reduce energy loss during walking or rotating braking of construction machinery.  Energy saving of construction machinery can be realized by adopting electric motor or hybrid power technology through hydraulic drive power.  In addition, the development of digital hydraulic technology and the Internet will continue to promote the intelligentization of construction machinery, thus greatly reducing labor intensity.  In short, optimizing the complete set of systems and working intelligently are the direction of continuous expansion of hydraulic technology. 

As a manufacturer of important hydraulic actuators, we have also designed and developed several hydro-electric products, such as the development of motors with speed sensors, which can accurately detect the real-time speed and steering of motors, the development of electro-hydraulic indexing motors, which can perform related rotary actions according to indexing requirements, and the patented technology of electro-hydraulic double-drive motors, which can realize arbitrary switching of motor and motor drive, and ultimately meet the user's digital control and high efficiency and energy saving requirements. 

The R & D and innovation of future hydraulic integration will become the main driving force for the progress of the whole hydraulic field, and it is also the only way to adapt to and support the development of intelligent industry era. The development goal of our enterprise is to keep up with the pace of hydraulic integration. We need to work together!