FIELD: road building machinery; motor grader. SUBSTANCE: slewing circle drive ha hydraulic pump, hydraulic distributor and two hydraulic cylinders connected by crank mechanism. Three sealing rings are located on cylindrical part of crank and two shaped grooves are made, each being connected with one of two grooves connected with control hydraulic distributor. Four chambers spaced through 90 deg are made in housing. Each chamber is connected with corresponding shaped grooves of through two holes. Diameter of holes is less than distance between grooves along vertical axis. Crank lever axis is located between grooves. Supports of hydraulic cylinders are located on axes on axes of four housing chambers. EFFECT: improved reliability of drive in operation. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MOTOR GRADER OPERATING EQUIPMENT | 1997 |
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| 0 |
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SU197451A1 |
