FIELD: agriculture.
SUBSTANCE: invention relates to agricultural machine building and may be used in control systems of combine harvester actuators. Hydraulic system comprises hydraulic tank connected to pump, injection and drain lines, actuating hydraulic motors of various energy intensity and electromagnetic distributors of their control. Hydraulic system comprises electromagnet and safety valves. Electromagnet valves are serially connected in line of overflow valve control, and safety valves are connected in it in parallel. Safety valve is connected upstream each electromagnet valve with its adjustment for lower pressure compared to previous safety valve.
EFFECT: using several pressure levels in hydraulic system of combine harvester makes it possible to reduce power inputs for functioning of its hydraulic drives.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HYDRAULIC SYSTEM OF GRAIN COMBINE | 2004 |
|
RU2274996C2 |
| GRAIN COMBINE HYDRAULIC SYSTEM | 2001 |
|
RU2210202C2 |
| HYDRO-DRIVE OF TENSIONER OF BELT TRANSMISSION | 2009 |
|
RU2399799C1 |
| GRAIN COMBINE | 2004 |
|
RU2267250C1 |
| HYDRAULIC SYSTEM FOR GRAIN COMBINE HARVESTER | 0 |
|
SU1358822A1 |
| HYDRAULIC SYSTEM FOR GRAIN COMBINE HARVESTER | 0 |
|
SU1530130A1 |
| HYDRAULIC SYSTEM FOR GRAIN COMBINE | 2001 |
|
RU2210203C2 |
| GRAIN COMBINE HYDRAULIC SYSTEM | 2001 |
|
RU2209540C2 |
| GRAIN COMBINE | 2002 |
|
RU2241326C2 |
| HYDRAULIC SYSTEM FOR GRAIN COMBINE HARVESTER | 0 |
|
SU1371581A1 |
