Hydraulic Drive Motors
Hydraulic drive motors are used in hydraulic systems or transmissions to generate large amounts of power through the use of hydraulic fluid and pressure. The motor is one component of a three part system that uses a hydraulic pump driven by an electric motor or combustion engine to force hydraulic fluid such as oil through the valves, filters, and piping to enter the motor and cause the motor to generate torque and rotational energy.
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Applications of Hydraulic Drive Motors
The hydraulic system hydraulic drive motors are a hydrostatic drive system, which refers to the transfer of energy from flow and pressure. Hydraulic motors of any size can produce greater amounts of power than their electric counterparts and are used for large loads. The main enclosure and interior components are made from metal such as steel or iron, so they can withstand high pressures and operating speeds. Hydraulic drive motors and the systems they are a part of are widely used in aircraft, vehicles, industrial lifting, and machinery that require strong pressurized actions. When used in a suitable system, Hydraulic motors are able to accomplish large amounts of work in short periods of time. Additionally, hydraulic motors are frequently used in automated manufacturing systems, trenchers, automobiles, construction equipment, marine winches, waste management and recycling processes, wheel motors for military vehicles, self-driven cranes and excavators, forestry, agriculture, conveyor and auger systems, dredging, and industrial processing.
Hydraulic Drive Motor Types
There are three main kinds of hydraulic drive motors: gear, vane, and piston. Each uses a different method to generate power while still relying on the use of hydraulic fluid. Hydraulic drive motors are mechanical actuators because they are the components that come into contact with the fluid and do the work of generating energy. The motor is driven by a small pneumatic engine that pumps oil from a reservoir through an inlet valve to an outlet valve through a series of gears, rotating screws, turning vanes or cylinders, depending on what specific type of hydraulic motor it is. The fluid causes the rotating components to turn quickly, generating mechanical energy because the motor is linked to other machinery through a drive shaft. After traveling through the motor, the hydraulic fluid is filtered and returned to the main tank in an open system or continues in one pressurized loop in a closed system. Heavy duty valves are required to control the high pressure present in the system; this pressure can convert as little as 4.5 pounds of input force into 100 pounds of load moving force and that ability is only for a basic foot pump. Other hydraulic motors can provide millions of metric tons of forces with this simple system.