Danfoss Danfoss hydraulic motor function and application introduction

The Danfoss Danfoss hydraulic motor is a mechanical actuator that converts the pressure and flow of hydraulic oil into torque and angular displacement (rotation). The hydraulic motor is equivalent to a rotating hydraulic cylinder. Conceptually, hydraulic motors should be converted to hydraulic pumps because they function the opposite. Just like a DC motor can be used as a DC generator. However, most hydraulic pumps are not available as hydraulic motors because they cannot be driven in reverse. Moreover, there are specific working pressures at both ends of the hydraulic motor. Hydraulic pumps, motors and hydraulic cylinders can be combined into a hydraulic drive system. The hydraulic pump and the hydraulic motor form a hydraulic transmission. Hydraulic motor characteristics: The same torque output is smaller than the electric motor.
    Danfoss Danfoss hydraulic motors are also known as oil motors. They are mainly used in injection molding machinery, ships, hoists, construction machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemicals, port machinery, etc.
    Danfoss Danfoss hydraulic motor oil temperature is too high will have a negative impact on the hydraulic system. These effects are mainly:
    (1) The oil temperature is too high, the viscosity of the oil is lowered, the compressibility of the hydraulic oil is deteriorated, and the moving speed of the actuator of the hydraulic system is affected. For the control system, the control precision and rapidity are reduced, and for the transmission system, the same is also reduced. Working speed;
    (2) If the oil temperature is too high, the lubricating performance of the oil will deteriorate and the wear of the moving parts will be aggravated;
    (3) The oil temperature is too high, accelerate the oxidation and deterioration of the oil, and precipitate the asphalt material to reduce the service life of the hydraulic oil. The precipitate blockages the damper orifice and the slit valve port, causing the pressure valve to be stuck and unable to move, the metal pipe to be elongated, curved, or even broken.
    At present, the technology for solving the temperature rise problem of the hydraulic system is generally a method of utilizing the natural heat dissipation of the surface of the fuel tank casing. The tank housing is naturally cooled, and the tank volume tends to be too large. The tank volume is usually above 250l. The conventional fuel tank usually adopts the method of natural heat dissipation of the fuel tank casing. Since the fuel tank adopts an integral type and the heat dissipation area is small, the temperature of the hydraulic oil is high. In order to reduce its temperature, the tank volume tends to be too large.
    This design requires the fuel tank to have good natural heat dissipation capability and can be applied to mobile equipment. Therefore, it is necessary to break through the conventional design ideas and adopt a new structural fuel tank to increase the natural heat dissipation area of the fuel tank as much as possible. In the construction HVAC system, in order to increase the heat transfer area and improve the heat transfer efficiency, a plate-fin radiator is widely used. In this study, a plate-like thin steel plate was used, welded and formed into a single fuel tank module, and then assembled into a fuel tank for a hydraulic system having good heat dissipation performance. The design of this fuel tank has two advantages. One is to avoid excessive volume of the fuel tank, and the other is to avoid complicated and independent cooling devices. If necessary, a hydraulic motor can be arranged on the gantry supporting the fuel tank, and the hydraulic motor drives the fan to cool the fuel tank. In order to increase the ventilation capacity of the fuel tank, enhance the heat dissipation capacity of the fuel tank and realize the unit body of the fuel tank, the bottom is installed. The fan supports the fan and the fuel tank with a stand.
    The Danfoss Danfoss hydraulic motor is customarily used as an energy conversion device that converts the hydraulic energy provided by the hydraulic pump into mechanical energy.
    Danfoss (Danfoss) is one of Denmark's largest multinational industrial manufacturing companies, founded in 1933. Known for promoting the application of advanced manufacturing technologies and focusing on energy conservation and environmental protection, Danfoss is a world-leading product manufacturer and service provider in refrigeration and air conditioning control, heating and water control, and transmission control.
    Danfoss Danfoss hydraulic motor application area
    Danfoss butterfly valves, gate valves, ball valves, etc. can be used in power plant boiler feed water, condensate polishing, water reuse, industrial wastewater treatment and desulfurization systems. Hastelloy and two-way stainless steel butterfly valves are designed for desulfurization systems. Limestone slurry with a chloride ion content of 20,000 PPM and above.
    Danfoss Danfoss hydraulic motors are used in the petroleum and chemical industries
    Danfoss' high-pressure metal-sealed high-performance valves designed for high-temperature and high-pressure environments and Teflon, reinforced PTFE butterfly valves and ball valves designed for chemical media have helped to achieve safe circulation of corrosive and active substances. In addition, Danfoss is also based on customer specials. Requested, custom solutions for automated control systems.
    Danfoss Danfoss hydraulic motor for shipbuilding, desalination
    70% of the earth's surface is water, of which 97.2% is seawater. The marine industry and desalination are increasingly important for the sustainable development of the world. Danfoss valves have been certified by many world-famous institutions for shipbuilding activities, such as DNV, Lloyd's, etc., for the sanitary facilities of ships, HVAC, load-carrying systems and other aspects of seawater desalination equipment and engineering.
    Danfoss Danfoss hydraulic motor for food, medicine
    Sensitive hygiene requirements in the food and pharmaceutical industry define the material and processing technology of the valve. Danfoss' PTFE-lined butterfly valve (FDA-approved), all stainless steel check valves and ball valves provide safe isolation for various sensitive media. Control and processing requirements.
    Danfoss Danfoss hydraulic motors are used in metallurgy, paper, automotive, electronics and more. Danfoss' butterfly valves, ball valves, check valves, etc. are also suitable for metallurgy, paper, automotive, electronics and other industries due to their excellent high temperature, high pressure and corrosion resistance. High-precision automatic control units made in Europe with automatic monitoring and diagnostic functions help reduce maintenance costs and maximize enterprise productivity.