As a widely used technology, hydraulic pressure has a broad development prospect. With the in-depth development of computer, hydraulic control system can be combined with intelligent control technology, computer control technology and other technologies, so that it can play a role in more occasions, and can also complete the expected control tasks more skillfully and flexibly.
Hydraulic transmission has many outstanding advantages, so it is widely used, such as general engineering. Industrial plastic processing machinery, pressure machinery, machine tools, etc. Construction machinery, construction machinery, agricultural machinery, automobiles, etc. In mobile machinery; Metallurgical machinery, lifting device, roller adjusting device, etc. Used in steel industry; Flood control dam device, river bed lifting device, bridge control mechanism, etc. Used in civil and hydraulic engineering; Power plant steam turbine speed regulating device, nuclear power plant and other countries; Deck crane (winch), bow door, bulkhead valve, stern propeller, etc. For ships; Giant antenna control device for special technology, measuring buoy, lifting turntable, etc. Gun control device for military use, ship anti-rolling device, aircraft simulation, aircraft landing gear retracting device, rudder control device.
The basic principle of hydraulic transmission is to realize energy conversion and power transmission in a closed container with pressure oil as working medium. Liquid is called working medium, generally mineral oil, and its function is similar to that of belt, chain, gear and other transmission elements in mechanical transmission.
In hydraulic transmission, hydraulic cylinder is the simplest and relatively complete hydraulic transmission system. By analyzing its working process, we can clearly understand the basic principle of hydraulic transmission.
Various control loops are formed, and then several loops are organically combined into a transmission system to complete certain control functions to complete energy transmission, conversion and control.