What are the functions of various marine accessories bollards

Generally, the position of mooring post management center is about 0.5-0.8m away from the front coast, which is too close to the front coast, easy to be collided when the ship is leaning away, and unsafe for the actual operation of the cable; too far back, which hinders the work of transportation machinery and destroys the cable. For Yizhuang port and ship repair port, because there are switch boxes and other equipment at the forefront, it is stipulated that the bollards are slightly far away from the outer edge line, about 0.8-1.0m.

The bollard is designed according to the working capacity of the parking space and the structural form of the port. The selection of the motor is based on the regulations that the ship can be trusted and convenient for use when it is away from the port, parked, moved and turned around. The bollard is composed of cover, anchor cable, nut, sealing ring, anchor plate and filling material in the center of the bollard. Bollards are divided into pig iron (HT200) and steel casting (zg230-450), model and specification: 50kn-2000kn

The bearing alloy should have the following characteristics: ① excellent corrosion resistance. It is specified that the friction resistance between the piston pin made of bearing alloy and the shaft shall be small, and it has excellent wettability; ② it has certain tensile strength and strength to bear the working pressure imposed by the rotating shaft; but the strength is not suitable for too high, so as to prevent damage to the motor shaft. ③ The plastic deformation and fracture toughness are excellent. It is convenient for bearing vibration and impact load, and makes the shaft and rolling bearing cooperate well with each other. ④ Good surface properties. It has excellent anti occlusion, compliance and embedment. ⑤ It has excellent heat transfer, corrosion resistance and small thermal expansion index.