| 摘要 |
<p>Disclosed are an oil line control apparatus (100) and engineering machinery. A first reversing valve (110) of the oil line control apparatus is connected with an actuating mechanism; a first control valve (160) is connected to the first reversing valve via a first channel (150); and an oil storage unit (130, 140) is connected to the actuating mechanism and to the first reversing valve. In a first state, a pressure oil outputted by a pressure source successively passes through the first control valve, the first channel, and the first reversing valve and then enters the actuating mechanism, and oil returned by the actuating mechanism is housed in the oil storage unit. In a second state, the return oil housed in the oil storage unit flows back to the oil tank by successively passing through the first reversing valve, the first channel and the first control valve. The oil line control apparatus is able to temporarily store return oil from the actuating mechanism by means of the oil storage unit. When the actuating mechanism suspends operation, return oil temporarily stored thereby is released, thus only one oil line is required to achieve the functions of oil intake and oil return, thereby reducing the complexity and cost of the apparatus and improving the reliability and maintainability of the apparatus.</p> |
