FIELD: transport.
SUBSTANCE: invention relates to transport machine building. Steering of multi-unit track-type vehicle power frame contains steering device kinematically connected with steering wheel and hydraulically connected with feeding pump and hydraulic tank; six-line hydraulic control valve; hydraulic cylinders of vehicle swing control; and bilateral lock valve. Hydraulic control valve is of two-position type and connected by two hydraulic lines with steering device, two hydraulic lines via lock valve - with swing control hydraulic cylinder of multi-unit track-type vehicle, and by two hydraulic lines - with additional three-position five-line hydraulic control valve with hydraulic control. In the first position of six-line two-position hydraulic control valve the latter is connected with swing control hydraulic cylinder by two hydraulic lines. In the second position it is connected with additional three-position five-line hydraulic control valve with hydraulic control. Three-position five-line hydraulic control valve is connected by the first and the second hydraulic lines with six-line two-position hydraulic control valve, by the third hydraulic line - with hydraulic tank, by the fourth hydraulic line it is connected with hydraulic cylinder of braking device of power frame left track, by the fifth hydraulic line - with hydraulic cylinder of braking device of power frame right track. In the first position, hydraulic cylinder of left braking device is connected with six-line two-position hydraulic control valve, and hydraulic cylinder of right braking device is connected with hydraulic tank. In the second position, hydraulic cylinders of braking device are connected with hydraulic tank. In the third position, hydraulic cylinder of right braking device is connected with two-position hydraulic control valve, and hydraulic cylinder of left braking device is connected with hydraulic tank. Stems of hydraulic cylinders of braking devices are made spring-loaded.
EFFECT: hydraulic steering functionality enhancement.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| STEERING GEAR OF ARTICULATED VEHICLE | 0 |
|
SU1749101A1 |
| DEVICE TO CONTROL ARTICULATED TWO-TRUCK CRAWLER VEHICLE | 1993 |
|
RU2089431C1 |
| TRACTION AND-TRANSPORT VEHICLE | 2002 |
|
RU2232685C1 |
| HYDRAULIC SYSTEM FOR STEERING GEAR OF VEHICLE | 0 |
|
SU1134451A1 |
| TURNING SYSTEM OF ARTICULATED CRAWLER VEHICLE | 0 |
|
SU1323451A1 |
| CONTROL SYSTEM FOR PIVOTALLY CONNECTED TRACKED VEHICLE | 0 |
|
SU1678684A1 |
| POSITIVE DISPLACEMENT STEERING GEAR | 1992 |
|
RU2026225C1 |
| HYDRAULIC CONTROL AND STEERING SYSTEM FOR LOAD-HANDLING AND HAULING MACHINE | 0 |
|
SU1068318A1 |
| TWO-STAGE STEERING GEAR OF VEHICLE | 0 |
|
SU1155489A1 |
| VEHICLE HYDROSTATIC STEERING GEAR | 0 |
|
SU1754550A1 |
