YA00019027 MOTOR OIL For HITACHI ZX890-5A 6WG1

The working principle of rotary motor is based on hydraulic transmission. It is driven by the pressure oil provided by the hydraulic pump, which converts the hydraulic pressure into the rotary torque, thus driving the equipment to rotate. Specifically, after the hydraulic oil enters the motor, it drives the gears or blades inside the motor to rotate, and then drives the rotating part of the equipment to move. Rotary motors usually have the following structural characteristics: hydrostatic transmission in open or close system, and the output revolutions are directly proportional to the flow and inversely proportional to the displacement. The cylinder body and the oil distribution plate adopt spherical oil distribution, which can automatically center during rotation, with low circumferential speed and high efficiency. The drive shaft can bear radial load and is suitable for use under various working conditions. Reasonable design and low noise. Rotary motor is usually composed of cylinder block, piston assembly, bearing, valve plate and so on. The cylinder block supports the piston assembly and makes the piston slide smoothly through the swash plate. The valve plate is pressed on the surface of the cylinder block under the action of mechanical pressure and hydraulic pressure to ensure the normal operation of the system. In addition, the rotary motor also includes a mechanical brake for parking, which is used to stop the rotary motion when necessary.

The working principle of rotary motor can be divided into two types: pneumatic type and hydraulic type. Pneumatic rotary motor uses high-pressure air to push the rotary slide plate to realize the rotary motion of the shaft; The hydraulic rotary motor drives the motion of the rotary slide plate through the pressure of hydraulic oil and converts it into the kinetic energy of rotation. Rotary motor is a kind of rotating machinery driven by motor, gas or hydraulic pressure. Its main function is to convert electric energy or other energy into rotary motion and drive various machines, equipment and tools. Rotary motors are widely used in machine tools, wind turbines, compressors, excavators, milling machines, lathes, spraying machines, drum machines, tractors and other mechanical equipment, and are an indispensable part of modern machinery manufacturing industry. The working principle of rotary motor can be divided into two types: pneumatic type and hydraulic type. Pneumatic rotary motor uses high-pressure air to push the rotary slide plate to realize the rotary motion of the shaft; The hydraulic rotary motor drives the motion of the rotary slide plate through the pressure of hydraulic oil and converts it into the kinetic energy of rotation.

Rotary motor is a kind of hydraulic motor, which generates reaction torque by applying high-pressure hydraulic oil to the reciprocating plunger, thus driving the superstructure of excavators and other equipment to realize left-right rotation. The working principle of rotary motor is similar to that of hydraulic cylinder, but the output of hydraulic motor is rotary motion instead of linear motion. The rotary motor is equipped with protective devices such as rotary overflow valve and oil replenishing valve to ensure that the motor can work safely when the load exceeds the specified limit. For example, when the system pressure exceeds the set pressure, the rotary relief valve will open the overflow and carry out overload protection to prevent the rotary pressure from increasing continuously, thus protecting the rotary motor. The makeup valve protects the motor by providing oil return to the rotary motor to prevent cavitation in the motor.