Balance Principle of Marine Loading Arm

Marine Loading Arm the idling state should keep the inner and outer arms in balance, and the inner and outer arms should have the tendency to return to the non-operating state. The balance weight structure can meet this requirement. The oil arm has two balance weights, the main (inner arm weight) and the secondary (outer arm weight), which can achieve static balance.

The main counterweight balance principle is based on the weight of the inner arm's middle rotary joint as the shaft, the inner arm's upper end, the upper sheave and the outer arm's weight, and the inner arm's lower end main counterweight, the lower sheave and the secondary counterweight. Balancing, adjusting the weight of the main counterweight at the lower end of the inner arm ensures that the inner arm is balanced and has a tendency to return when it is not working.

The principle of secondary counterweight balance is achieved through the upper and lower sheave mechanism. The weight of the outer arm drives the upper sheave to have the torque to be sold in one direction, and the secondary weight drives the lower sheave to rotate in the opposite direction and the moment balance is adjusted. The weight and the angle of the inner arm (retracting and releasing the sheave wire rope) or adjusting the position of the secondary counterweight on the beam (lifting pair of counterweights) can ensure that the outer arm is balanced and has a tendency of returning when it is not in working condition.

We are Marine Loading Arm supplier, Our products are mainly used in chemical plants, terminal oil depots and so on.