FIELD: machine engineering, namely systems for controlling power pneumo-hydraulic drives of machines.
SUBSTANCE: system includes compressed air source; compressed air distributor connected to said air source by its inlet; apparatus for controlling operation cycle; controlling pneumo-hydraulic distributors connected to compressed air distributor. Outlets of compressed air distributor are communicated through pipelines with rod and piston cavities of working and power cylinders of drive. Compressed air distributor is in the form of three three-way two-position pneumatic distributors. Outlet of each pneumatic is communicated respectively with rod cavity of working cylinder, with rod cavity of power cylinder and with piston cavity of power cylinder. Apparatus for controlling operation cycle is in the form of pressure relay with pneumatic outlet, inlet opening and outlet opening. The last is communicated with control cavities of three-way two-position pneumatic distributors whose outlet are connected with rod - and piston cavities of power cylinder. Inlet opening of pressure relay is communicated with rod cavity of power cylinder.
EFFECT: improved flexibility and reliability of control system.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRESSING AND SYSTEM OF POWER DRIVE CONTROL FOR METHOD REALISATION | 2005 |
|
RU2346816C2 |
| METHOD OF SUCCESSIVE PNEUMAHYDRAULIC AMPLIFICATION | 2005 |
|
RU2311297C2 |
| PRESS | 0 |
|
SU1119857A1 |
| PNEUMODRAULIC PRESS | 2005 |
|
RU2294837C2 |
| PNEUMATIC AND HYDRAULIC DRIVE FOR FRICTION WELDING MACHINE | 0 |
|
SU1333510A1 |
| APPARATUS FOR DEFORMING TUBULAR BILLETS | 0 |
|
SU1065061A1 |
| PRESS | 0 |
|
SU619360A1 |
| PRESS TOOL | 0 |
|
SU1143605A1 |
| PRESS | 0 |
|
SU903146A2 |
| PRESS RAM POWER DRIVE | 2003 |
|
RU2238849C1 |
