| 摘要 |
A hydraulic drive of flying shears comprises a pump-and-accumulator station with a check valve, a hydraulic valve, which by a pressure inlet is connected to the accumulator of pump-and-accumulator station, and a hydraulic cylinder of shears. A hydraulic drive is equipped with a flow regulator installed between the hydraulic valve and pump-and-accumulator station, and is equipped with a throttle and a check valve connected in parallel to each other, and a regeneration circuit which are installed in series between the hydraulic valve and hydraulic cylinder of shears. The regeneration circuit comprises interconnected an additional check valve, a balancing valve and a controlled check valve. The accumulator is a high-pressure hydraulic accumulator. As a hydraulic cylinder a hydraulic cylinder with braking at the end of stroke from both sides is used. |
