Electro-hydraulic integrated driver for rotary pin of container hanging tool

Abstract

The invention discloses an electro-hydraulic integrated driver for a rotary pin of a container hanging tool. The electro-hydraulic integrated driver comprises a bi-directional motor, a bi-directional hydraulic pump, a bi-directional hydraulic cylinder and two pilot-controlled check valves, wherein a shell of a bi-directional motor, the body of the bi-directional hydraulic pump, the body of the bi-directional hydraulic cylinder, the body of an overflow valve and bodies of the pilot-controlled check valves are integrally formed by a component. The bi-directional motor and the bi-directional hydraulic pump are located on a same shaft, and outlets on two ends of the bi-directional hydraulic pump are connected to inner cavities arranged at two sides of the bi-directional hydraulic cylinder through one pilot-controlled check valve. The two ends of piston rods of the bi-directional hydraulic cylinder are respectively connected with the rotary pin through a connecting rod. When the bi-directional motor turns left, the piston rod stretches out right, and the connecting rod drives the rotary pin to rotate and lock. After a power supply switches, the bi-directional motor turns right, the piston rods stretch out left, the connecting rod drives the rotary pin to rotate reversely and unlock. After the rotary pin rotates to a locking position or a unlocking position, the bi-directional motor stops to operate, high-pressure oil in the cylinder is kept under actions of the pilot-controlled check valves so as to lock the rotary pin. The electro-hydraulic integrated driver for the rotary pin of the container hanging tool has a compact structure, has no leakage pollution, and has an anti-overloading capability and a strong impact resistance capability.

Description

Technical field: [0001] The invention relates to the mechanical field, in particular to a device for opening and closing a container spreader repin lock, in particular to an electro-hydraulic integrated driver for a container spreader repin. Background technique: [0002] During container loading and unloading operations, it is necessary to lock the spreader by turning the pin to ensure safety. In the prior art, a hydraulic system or a geared motor is used to drive the opening and closing of the revolving pin lock, and the hydraulic system used includes an oil cylinder and a high-pressure pipeline. After long-term use, the hydraulic system will often leak, causing pollution to the environment, and requires regular maintenance; while the geared motor has poor overload resistance and impact resistance, is easy to burn out, and has high maintenance costs. Invention content: [0003] The object of the present invention is to provide an electro-hydraulic integrated driver for ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an electro-hydraulic integrated driver for container spreader repinning. The electro-hydraulic integrated driver for container spreader repinning needs to solve The hydraulic system in the pin drive mechanism has technical problems such as hydraulic leakage and the geared motor is easy to burn out

Images