SYNTHESIS OF HYDROPNEUMATIC DRIVE SYSTEM SCHEMES ON SEVEN-LINEAR DISTRIBUTORS

The purpose of the article is an in-depth study of ways to improve hydraulic and pneumatic systems using seven-line distributors. The main advantages focused on include increased efficiency, increased ease of installation, reduced hardware costs, and lower cost of the hydropneumatic actuator, these are the main components that must be guided when designing hydraulic and pneumatic circuits. When achieving these indicators, the hydraulic equipment used in the system plays an important role. Due to the idea of using extremely universal modules, the article investigated distributors with more lines than in standard solutions, namely seven-line hydraulic and pneumatic distributors. The conventional notation of the seven-line distributor is given. The minimal combinations of functions that can be implemented using seven-linear distributors are considered. It was determined what can be considered a trigger. Examples of the use of seven-line dividers in the construction of flip-flops with a dominant zero and flip-flops with a counting input are given. A detailed description of the operation of such triggers is given. The possibility of expanding the functions of the command apparatus was investigated. A detailed description of the command apparatus built on seven-line distributors is made. The definition of the concept of graph of operations is given. A graph of operations for a molding machine is built. On the basis of this graph, logical equations are constructed that describe the entire system operation process and transition states, taking into account the signals that move the system to the next state and the signals acting inside the transition. A pneumatic circuit for the molding machine was also constructed based on the obtained logic equations. A seven-line command apparatus was used to build this scheme, which demonstrates the possibilities of using a seven-line command apparatus in practical conditions. The areas of application of such command apparatus and seven-line distributors are considered.