Hydraulic Oil Press (one of the hydraulics) is a special hydraulic oil as the working medium, through the hydraulic pump as a power source, by the force of the pump hydraulic oil through the hydraulic pipe into the oil cylinder/piston, and then the cylinder/piston in a number of matching sets of seals, different positions of the seals are different, but all play a role in sealing, So that the hydraulic oil can not be leaked. Finally, through the check valve to make hydraulic oil in the tank cycle to make the cylinder/piston to do work in order to complete a certain mechanical action as a productive machinery.
1 structure
The Hydraulic Oil Press consists of two main parts, the host and the control mechanism. The main parts of the Hydraulic Oil Press include fuselage, master cylinder, ejector cylinder and liquid filling device. The power mechanism consists of a fuel tank, a high-pressure pump, a low-voltage control system, an electric motor and a variety of pressure valves and directional valves. Power mechanism under the control of electrical devices, through the pump and cylinder and a variety of hydraulic valves to achieve energy conversion, regulation and transmission, complete a variety of process action cycle.
2 classification
Hydraulic Oil Press classification by structural form
is mainly divided into: Four column hydraulic machine (three Liang type, five Liang type), two-column Hydraulic Oil Press, Single-column Hydraulic Oil Press (c-shaped structure), frame-type Hydraulic Oil Press.
Classification by the use of Hydraulic Oil Presses
Mainly divided into metal forming Hydraulic Oil Press, bending Hydraulic Oil Press, stretching Hydraulic Oil Press, blanking Hydraulic Oil Press, powder (metal, non-metallic) forming Hydraulic Oil Press, pressure Hydraulic Oil Press, extrusion Hydraulic Oil Press, extrusion molding and so on.
3 characteristics
Hydraulic Oil Press Pump Direct drive Hydraulic Oil Press has the following characteristics
1. The travel speed of the movable crossbeam of the Hydraulic Oil Press depends on the pump's liquid supply, and has nothing to do with the deformation resistance of the forgings during the process. If the pump fluid supply is constant, the working speed of the Hydraulic Oil Press is a fixed value.
2, the pump supply pressure and the power consumed by the workpiece deformation resistance, work deformation resistance, pump pressure and the power consumption is also large, and conversely small.
3, the movable beam can be used to speed constant and pump pressure change characteristics, as a signal to manipulate the distributor to realize the automatic control of Hydraulic Oil Press.
4, the basic investment province, covers a small area, day-to-day maintenance and maintenance simple. The hydraulic pump in the direct drive system of the pump is selected according to the maximum working speed and working pressure of the oil press, the hydraulic pump is not fully utilized, especially the large tonnage oil press, and its utilization coefficient is very low when the liquid-filled stroke, return, auxiliary process and the required working pressure are small. Therefore, the Hydraulic Oil Press tends to drive the work speed and working pressure.
