Application technology of hydraulic servo system i

2022-08-05
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Technical description for application of hydraulic servo system in excavator control system

hydraulic servo system is commonly known as hydraulic amplifier. On the one hand, the actuator can automatically repeat the change law of input signal with the accuracy of 1.9. Pressure control system power supply: AC220V, 1.5KW. On the other hand, it plays the role of power amplification

the hydraulic servo system can be divided into slide valve type and constant temperature inner cavity rotary type with temperature up to 90 ℃. The slide valve hydraulic servo system can be divided into external type and internal type

application of hydraulic servo system in steering mechanism

when the spool valve of the hydraulic servo system moves to the right, the oil flows into the large cavity of the steering cylinder, pushing the piston to the right and deflecting the steering wheel. At this time, the oil in the small cavity of the steering cylinder flows into the small cavity of the feedback cylinder to realize feedback contact; On the contrary, when the slide valve moves to the left, the pressure oil flows into the small cavity of the feedback cylinder, and its piston discharges the oil in the large cavity to the small cavity of the cylinder, causing the steering wheel to deflect in the opposite direction. The time difference check valve at the end of the piston stroke of the steering cylinder on each side replenishes oil to the small cavities of the steering cylinder and the feedback cylinder to avoid air suction

application of hydraulic servo system in brake

the function of the hydraulic servo system of slide valve brake is that when the brake pedal is depressed, the lever is operated by the spring to make its left end press the spring upward, move the piston upward and push open the conical valve, so that the oil inlet is connected with the oil 3. Its anti creep and tightening strength are better than that of poly4 fluoroethylene. At this time, the high-pressure oil enters the working cylinder through the oil inlet, cone valve and oil outlet to implement braking. When the torque generated by the pressure of high-pressure oil on the piston relative to the pin shaft is greater than the torque generated by the compression force of the spring on the pin shaft, the piston moves downward and the conical valve is closed. If the torque of the former is still higher than that of the latter, the piston will move downward again, the conical valve will be separated from the valve seat, and the oil chamber is connected with the oil return port. At this time, part of the oil in the brake system flows back to the oil tank, and the piston picks up until the conical valve is closed. When the brake pedal is released, the piston drops, and the oil flows from the oil chamber to the oil return port through the oil passage and oil hole, and then flows back to the oil tank. At this time, the brake is released. The hydraulic servo system is commonly known as the hydraulic amplifier. On the one hand, the actuator can automatically repeat the change law of the input signal with a certain accuracy, on the other hand, it plays a role of power amplification

the hydraulic servo system can be divided into slide valve type and rotary type, and the slide valve hydraulic servo system can be divided into external type and internal type

application of hydraulic servo system in steering mechanism

when the slide valve of hydraulic servo system moved to the right, Qu Yan, general manager of Changzhou No.6 element materials technology Co., Ltd., informed that the oil flowed into the large cavity of the steering cylinder, pushing the piston to move to the right and deflecting the steering wheel. At this time, the oil in the small cavity of the steering cylinder flows into the small cavity of the feedback cylinder to realize feedback contact; On the contrary, when the slide valve moves to the left, the pressure oil flows into the small cavity of the feedback cylinder, and its piston discharges the oil in the large cavity to the small cavity of the cylinder, causing the steering wheel to deflect in the opposite direction. The time difference check valve at the end of the piston stroke of the steering cylinder on each side replenishes oil to the small cavities of the steering cylinder and the feedback cylinder to avoid air suction

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