With the basic function understood a detailed study of the diagram can be accomplished using a step by step analysis of each numbered local area in the diagram. Hydraulics schematic symbols are a basic component of hydraulic circuit.
Book 2 Chapter 12 Fluid Motor Circuits Hydraulics
Hydraulic motor control circuit diagram. Symbol of pressure control valve used in hydraulic system circuit diagram. This video explains the working of hydraulic circuit used to control the speed of bidirectional variable displacement hydraulic motor by using variable pressure temperature compensated flow. The hydraulic pump and motor must be matched to the torque requirements of the winch. Symbols for hydraulic systems are for functional interpretation and comprise one or more function symbols. Figure 2 helps illustrate the various pressure drops. Hydraulic systems are often used in press work or other applications where the work piece must be held in place.
Information about the device of the hydraulic system is shown on the hydraulic diagram using symbols. The directional control valve with built in relief features optional flow control to control the speed of the winch. Local area number 1. The bleed off circuit shown in figure 12 26 is even less effective than the meter in circuit. Bleed off or bypass flow control circuit for a hydraulic motor. With bleed off flow control the motor inefficiency combines with the pump inefficiency to produce an even greater loss of rotational speed as the motor loads.
Without getting into the mathematical derivation this leads to the valve control of motor motion vcmm equation. Symbol for an open reservoir with a strainer. From a knowledge of hydraulic circuit analysis it is further known that the valve pressure losses relate to the square of the flow through each respective valve coefficient. Hydraulic circuit design and analysis a hydraulic circuit is a group of components such as pumps actuators and control valves so arranged that they will perform a useful task. The diagram shows a winch powered by a hydraulic motor. How to read hydraulic circuits.
When analyzing or designing a hydraulic circuit the following three important considerations must be taken into account. A flow control valve is used for adjusting the flow rate of a fluid in a pipeline. Safety of operation 2. The valve contains a flow passage or a port whose area can be varied. Symbol of flow control valve used in hydraulic system circuit diagram.
Gallery of Hydraulic Motor Control Circuit Diagram
