In theory, marine accessories can not play the role of transmission, but not only that, the bearing will also affect the transmission. In order to reduce this effect, the bearings of the high-speed shaft need good lubrication. Although some bearings are lubricated themselves, most bearings require lubricating oil. High speed operation will not only increase energy consumption due to friction, but also easily damage the bearings. It is unilateral to transform sliding friction into rolling friction. Because there are sliding bearings.

The anchor chain cap is installed on the upper part of the anchor chain on the hull deck, and the anchor chain fence is installed on the outer deck of the anchor chain cap. The device of the invention combines the anchor chain cover and the guardrail, and has the characteristics of low cost, good practicability, convenient use, beautiful appearance, simple operation, convenient and fast, saving time and labor, convenient maintenance, good safety, etc. From the ship, the anchor chain is straight, but the water is parallel to the seabed.

The functions of hydraulic cylinder accessories in Dalian marine parts in ship accessories are as follows.

1. the piston and cylinder liner form a space with variable sealing, which converts the pressure energy of hydraulic oil into mechanical kinetic energy and plays a guiding role.

2. the piston rod plays the role of transmitting mechanical kinetic energy, converting the reciprocating motion of the piston into the circular motion of the crankshaft.

3. if it is used to install the upper and lower covers of the crankshaft, it can support the rotating shaft. Bearings and corresponding lubrication pipe holes are usually installed.

4. the sealing end cover forms part of the sealing hydraulic chamber to prevent high-pressure hydraulic oil leakage.

5. you should know the functions of standard products, such as bearings and seals.

The function of marine fittings should be support, that is, it is literally interpreted as bearing, but this is only part of its function. The essence of support is to be able to bear radial load. It can also be understood that it is used to fix the shaft. Includes a choice of bearings that are fast and easy to automate. Fix the shaft so that it can only rotate, and control its axial and radial movement. Without bearings, the motor will not work at all.

The manufacturing of ship accessories must be equipped with power plants and auxiliary equipment that meet the requirements of the specifications for navigation on the water. These power plants include marine main power plant, auxiliary power plant, steam boiler, refrigeration and air conditioning plant, compressed air plant, marine pump and piping system, water supply plant and automation system. The electromechanical equipment is mainly concentrated in the engine room, and the technical department managing the equipment is the turbine department.