The hydraulic straightening system of the chute of the ship loader and the ship loader

Abstract

The invention discloses a hydraulic slide tube straightening system of a ship loader. The hydraulic slide tube straightening system comprises a hydraulic pump, a first reversing valve, a straightening oil cylinder, an oil tank and a connecting oil circuit. The first reversing valve is connected onto an oil circuit among the hydraulic pump, the oil tank and the straightening oil cylinder, oil can be selectively fed into one of a rod cavity and a rodless cavity of the straightening oil cylinder while oil can be selectively returned to the other one of the rod cavity and the rodless cavity of the straightening oil cylinder under a reversing effect of the first reversing valve, the connecting oil circuit is connected between the rod cavity and the rodless cavity of the straightening oil cylinder, a second reversing valve is arranged on the connecting oil circuit and is connected to a bypass oil circuit which is connected with the oil tank, and both the rod cavity and the rodless cavity of the straightening oil cylinder can be communicated with the bypass oil circuit or can be blocked from the bypass oil circuit under a selective switching effect of the second reversing valve. The invention further discloses the ship loader. The hydraulic slide tube straightening system and the ship loader have the advantages that a slide tube can be automatically straightened without power, energy consumption is saved, and maintenance is facilitated.

Description

Technical field [0001] The invention relates to the field of marine machinery, and in particular to a chute hydraulic straightening system of a ship loader and a ship loader having the chute hydraulic straightening system. Background technique [0002] When the boom of the ship loader is pitching, the slide of the ship loader must always be kept vertical to the horizontal plane, and the position of the slide is adjusted by the straightening cylinder of the slide hydraulic straightening system. [0003] At present, when the boom of the ship loader is pitching, the hydraulic pump drives the straightening cylinder to extend or retract, thereby straightening the slide of the ship loader, so that the hydraulic pump will always be in operation. , Resulting in a waste of energy. In addition, the hydraulic station of the slide hydraulic straightening system adopts a suspension cable or a chevron at the head of the boom to lay the cable for power supply. However, because the internal spac...

AI Technical Summary

Problems solved by technology

However, due to the relatively narrow internal space of the jib, the suspended cable rubs against the steel structure of the jib for a long time, which is prone to core breakage or being hung up. automatic straightening

If the boom is at a high position when a failure occurs, the boom cannot continue to move and move out of the ship or drop from a high position to a horizontal position, resulting in difficulty in maintenance

Images