Technical advances in proportional valves and other special-purpose devices have made various system electrical controls such as gears, steering, brakes, and working devices of engineering vehicles a reality. The displacement output mechanism is generally required to be completed by a proportional multi-valve valve actuator similar to that of FIG. 1 . The electrical operation has the advantages of fast response, flexible wiring, integrated control and easy interface with the computer. Modern hydraulic valves for construction machinery have increasingly used electronically controlled pilot-controlled electro-hydraulic proportional valves (or electro-hydraulic on-off valves) instead of manual direct. Operate or hydraulic pilot control multiple valves.
Another significant advantage of the use of electro-hydraulic proportional valves (or electro-hydraulic on-off valves) is that the number of operating handles can be greatly reduced on an engineering vehicle, which makes the cab layout simple, can effectively reduce the complexity of operations, and improves the quality and efficiency of operations. Important practical significance. TECNORD company JMF type joystick (joystick), the use of a joystick can effectively control multiple electro-hydraulic proportional valve and switch valve. The joystick can implement proportional control or switch control in both the X-axis and Y-axis directions. The application is very convenient.
The rapid development of digital wireless communication technology has resulted in stable performance and reliable operation. It is suitable for wireless remote control systems for construction machinery. The arrangement of remote control receivers on mobile machines can convert received radio signals into controlled proportional signals and control electro-hydraulic proportional valves. Switching valve switching signal, as well as control of other devices corresponding signals, so that the original manual operation of all components can receive remote control signal instructions and perform corresponding actions, this time construction machinery has actually become a remote control type of construction machinery. Wireless remote control transmitter and receiver systems have been successfully applied to the remote control of a variety of construction machinery.
From a security point of view, it transmits each digital data command with a set of special system address codes, which are used only once by the manufacturer of the address code. Each receiver only reacts to the transmitted signal with the same address code, and other wireless signals are the same frequency signal that will affect the receiving device. In addition, other security measures have been adopted to fully ensure system reliability. Many successful mobile robots such as loaders, rock drills, concrete pump trucks, aerial platforms, and bridge maintenance vehicles have been successfully implemented. The industrial remote control device complements the electro-hydraulic proportional valve. The electro-hydraulic proportional valve provides a feasible interface for the remote control of construction machinery. The remote control device also makes the electro-hydraulic proportional valve play a greater role.
The proportional valve is the valve proportional solenoid input voltage signal to produce the corresponding action, so that the work valve spool displacement, valve port size changes and to complete the input voltage proportional pressure, flow output components. Spool displacements can also be fed back mechanically, hydraulically or electrically. The electro-hydraulic proportional valve has various advantages such as various types of forms, easy composition and use of electrical and computer control of various electro-hydraulic systems, high control accuracy, flexible installation, and strong anti-pollution capability, and the application field is increasingly broadened. In recent years, the R & D and production of cartridge-type proportional valves and proportional multi-way valves fully take into account the characteristics of the use of construction machinery, with the functions of pilot control, load sensing and pressure compensation. It appears to be of great significance to improve the overall technological level of mobile hydraulic machinery. In particular, electronically controlled pilot operations, wireless remote control, and wired remote control operations have demonstrated their good application prospects.
Another significant advantage of the use of electro-hydraulic proportional valves (or electro-hydraulic on-off valves) is that the number of operating handles can be greatly reduced on an engineering vehicle, which makes the cab layout simple, can effectively reduce the complexity of operations, and improves the quality and efficiency of operations. Important practical significance. TECNORD company JMF type joystick (joystick), the use of a joystick can effectively control multiple electro-hydraulic proportional valve and switch valve. The joystick can implement proportional control or switch control in both the X-axis and Y-axis directions. The application is very convenient.
The rapid development of digital wireless communication technology has resulted in stable performance and reliable operation. It is suitable for wireless remote control systems for construction machinery. The arrangement of remote control receivers on mobile machines can convert received radio signals into controlled proportional signals and control electro-hydraulic proportional valves. Switching valve switching signal, as well as control of other devices corresponding signals, so that the original manual operation of all components can receive remote control signal instructions and perform corresponding actions, this time construction machinery has actually become a remote control type of construction machinery. Wireless remote control transmitter and receiver systems have been successfully applied to the remote control of a variety of construction machinery.
From a security point of view, it transmits each digital data command with a set of special system address codes, which are used only once by the manufacturer of the address code. Each receiver only reacts to the transmitted signal with the same address code, and other wireless signals are the same frequency signal that will affect the receiving device. In addition, other security measures have been adopted to fully ensure system reliability. Many successful mobile robots such as loaders, rock drills, concrete pump trucks, aerial platforms, and bridge maintenance vehicles have been successfully implemented. The industrial remote control device complements the electro-hydraulic proportional valve. The electro-hydraulic proportional valve provides a feasible interface for the remote control of construction machinery. The remote control device also makes the electro-hydraulic proportional valve play a greater role.
The proportional valve is the valve proportional solenoid input voltage signal to produce the corresponding action, so that the work valve spool displacement, valve port size changes and to complete the input voltage proportional pressure, flow output components. Spool displacements can also be fed back mechanically, hydraulically or electrically. The electro-hydraulic proportional valve has various advantages such as various types of forms, easy composition and use of electrical and computer control of various electro-hydraulic systems, high control accuracy, flexible installation, and strong anti-pollution capability, and the application field is increasingly broadened. In recent years, the R & D and production of cartridge-type proportional valves and proportional multi-way valves fully take into account the characteristics of the use of construction machinery, with the functions of pilot control, load sensing and pressure compensation. It appears to be of great significance to improve the overall technological level of mobile hydraulic machinery. In particular, electronically controlled pilot operations, wireless remote control, and wired remote control operations have demonstrated their good application prospects.
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