An electric hydraulic grab is a grab device that is opened and closed by a motor and a hydraulic system. The following is a detailed explanation of its working principle:
1. Components: The electric hydraulic grab is mainly composed of a barrel, a bucket, a cylinder, a motor, and a hydraulic pump station. These components work together to realize the opening and closing of the grab.
2. Working principle:
Motor drive: The motor is the power source of the electric hydraulic grab. When the motor starts, it drives the hydraulic pump to start working.
Hydraulic pump oil supply: The hydraulic pump is driven by a mechanical transmission or an electric motor to suck hydraulic oil from the oil tank and supply it to the hydraulic system. Hydraulic oil plays a role in transmitting force and motion in the system.
Hydraulic cylinder operation: The hydraulic oil supplied by the hydraulic pump enters the cavity in the hydraulic cylinder through the hydraulic pipeline. The piston of the hydraulic cylinder moves outward under the action of the hydraulic pressure, thereby driving the opening and closing of the bucket claw. The cylinder barrel of the hydraulic cylinder is fixed, and the movement of the piston enables the bucket claw to open and close through the connecting rod mechanism.
Bucket claw opening and closing: When the piston of the hydraulic cylinder moves outward, the bucket claw is opened through the connecting rod mechanism. Similarly, when the piston moves inward, the bucket claw will close. The opening and closing degree of the bucket claw can be adjusted by controlling the flow and pressure of the hydraulic system.
Material grabbing: When the bucket claw opens and closes to a certain extent, it can be used to grab materials. The electric hydraulic grab is usually operated by equipment such as manipulators or excavators to put the grabbed materials into the specified position.
3. Control method: The opening and closing action of the electric hydraulic grab can be controlled by the forward and reverse rotation of the motor or the hydraulic reversing valve. The opening and closing action of the grab can be achieved by controlling the rotation direction of the motor or the state of the hydraulic reversing valve.
The electric hydraulic grab has the advantages of simple structure, convenient operation and high work efficiency. It can work in various harsh environments, such as ships, docks, power plants, steel plants and other places, and is used to grab bulk cargo, scrap steel, logs, straw and other materials. In addition, due to its unique jaw curve design, it is particularly conducive to the loading and unloading of various types of bulk cargo.
