Electric hydraulic pump working principle

[Asia Fluid Network News] The use of a new product not only requires more confidence in the business users, but also requires users to understand and familiar with the working principle of the product. In particular, some of the less commonly used equipment in everyday life, such as electric hydraulic pumps, which are well known to the working principle of electric hydraulic pumps, may have a significant impact on the subsequent work and production. The working principle of electric hydraulic pump Hydraulic pump is a kind of hydraulic components for hydraulic transmission to provide pressurized fluid, is a kind of pump. Its function is to convert the mechanical energy of power machines (such as electric motors and internal combustion engines) into liquid pressure energy. The working principle of a single plunger pump is that the cam is rotated by the motor. When the plunger drives the plunger to move upward, the volume of the seal formed by the plunger and the cylinder decreases, the oil is extruded from the sealed volume and discharged through the check valve Need to go. When the cam rotates to the descending part of the curve, the spring forces the plunger down to create a certain degree of vacuum, and the oil in the tank enters the sealed volume under atmospheric pressure. The cam continuously raises and lowers the plunger, periodically reduces and increases the volume of the seal, and the pump continues to suck and drain oil. The working principle of the electric hydraulic pump is that the servo motor drives the hydraulic pump, the flow rate of the hydraulic system is controlled by the motor speed, the pressure of the hydraulic system is controlled by the motor torque, and the switch reluctance motor of Kehui is used, which has the advantages of high reliability, Energy-saving, intelligent CNC. Hydraulic pumps rely on the principle of sealed volume changes to work, it is generally referred to as positive displacement hydraulic pump. The plunger installed in the cylinder body to form a sealed volume, the plunger in the spring under the action always pressed on the eccentric . The prime mover drives the plunger to rotate so that the plunger reciprocates, so that the size of the sealed volume alternates periodically. When the small from large to small, forming a partial vacuum, the oil in the tank under atmospheric pressure, through the suction tube top open the check valve into the oil chamber to achieve oil absorption; the other hand, when the large to small, the cavity filled with oil Will open the check valve into the system and achieve pressure oil. In this way, the hydraulic pump converts the mechanical energy input by the prime mover into liquid pressure energy, and the prime mover drives the eccentric wheel to continuously rotate, and the hydraulic pump constantly sucks and presses oil. Electro-hydraulic pumps work in a highly corrosive environment, which is not available in many pump applications. It also accommodates high-intensity work, which ensures the need for productive work. More advantageous is that it is light in type and often brings convenience to production. In short it is a very suitable product for production use.