A reversible power device based on the cooperation of servo electric cylinder and hydraulic cylinder

Abstract

The invention discloses a reversible power device based on the cooperation of a servo electric cylinder and a hydraulic cylinder. One end of the electric device M is connected to a pressure-controllable high-pressure water pool H, and the other end of the electric device M is connected to a low-pressure water pool L; the piston hydraulic cylinder 1 One end of the piston hydraulic cylinder 1 is connected to the pressure-controllable high-pressure water pool H, and the other end of the piston hydraulic cylinder 1 is connected to the low-pressure water pool L; the piston of the piston hydraulic cylinder 1 is slidably arranged inside the cylinder body, and a piston rod b is arranged on the piston, and one end of the piston rod b is connected to a folded back The other end of screw rod a and piston rod b of type servo electric cylinder C is connected to external linear device P; screw a of switchback type servo electric cylinder C is coaxially connected with piston rod b of hydraulic cylinder 1 and external linear device P ; The switchback servo electric cylinder C and the electric equipment M are both connected to the grid; the electric equipment M has two working states of pumping water and power generation, and controls the power device to convert electrical energy into mechanical force or convert mechanical force into electrical energy.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a reversible power device based on the cooperation of a servo electric cylinder and a hydraulic cylinder. Background technique [0002] With the construction of an innovative society and the continuous development of economic technology, the power device that cooperates with hydraulic potential energy and mechanical potential energy is becoming more and more popular in social production links. With the increase in global energy demand and the deepening of energy conservation and environmental protection awareness, people are paying more and more attention to the role of the stability and economy of energy storage technology in power equipment. [0003] For the working conditions that require a linear force to balance the load force, the prior art often adopts a hydraulic potential energy conversion device or a linear electric device to realize it. The hydraulic p...

AI Technical Summary

Problems solved by technology

The hydraulic potential energy conversion device in the prior art realizes the balance of the load force through the cooperation of the hydraulic cylinder and the valve. Due to the addition of the valve, the energy loss in the conversion process of the hydraulic potential energy and the mechanical energy is huge, and the actual required efficiency cannot be achieved. Further consideration is to use the variable area automatic The principle of adaptation reduces the use of valves and improves energy conversion efficiency, but the variable area adaptive scheme can only generate discrete forces, and the number of adaptive series cannot be set too much, so it cannot be applied to working conditions where the demand force is a small value force

In addition, the linear electric device in the prior art achieves the balance of the load force through the cooperation of the servo motor and the screw. The linear electric device itself has high output efficiency, but if it generates a linear force that meets the demand and achieves the same efficiency output, the cost is very expensive. The actual engineering situation may not adopt

[0004] At the same time, it is a pity that neither the hydraulic device nor the linear electric device in the prior art can recover mechanical energy and convert it into electrical energy during its reverse operation, resulting in a large amount of waste of mechanical energy.

Images