Couplings suit with the basic principles of heat: the installation process is divided into two main coupling cold and hot mounted installation method, the following specific about the specific steps of cold and hot equipment installation method for everyone to learn reference. A cold installation method 1. Direct assembly method for coupling and shaft with a corresponding gap in after mating surfaces clean, smear grease installed directly. 2. The push-fit method for transition fit and not a great amount of interference with, or with the special requirements (such as the protection already ROLLS other components) can be pressed into the law, but the need to pressure the unit. 3. hydraulic assembly method which is an ideal method of mounting, but other parts must respond in advance to use the design and manufacture. Second, the thermal coupling assembly thermal coupling assembly work commonly used in the installation of large motors, compressors and rolling mills and other heavy equipment, since such devices typically employ coupling and shaft interference fit connection together. Interference coupling assembly methods are: press fit, chilling assembly and thermal suit with several species. At the installation site, the suit with the main thermal method, because this method of assembly is relatively simple, can be used for large diameter (D> 1000mm) and over parts large amount of interference) of. Pressed into the assembly method used for light and medium interference fit, but also presses and other machinery and equipment, it is generally only adopted at the factory. Shrink fitting method is generally only when it is conditional, such as the use of liquid nitrogen as a cold source, and the need to have a certain amount of thermally insulated container. The following describes the thermal suit with law. 1. The nature of the principle of thermal coupling suit with the basic principle of thermal suit with the heating element inclusive (hole), so that an interference with the diameter of the expanded value, and then into the contained elements (axis), and after cooling, machine pieces will be combined to achieve the required strength. In fact, the thermal expansion values ??must be compared with the value of large interference in order to ensure a smooth installation instead of having the installation process due to inclusion of cooling shrink parts, the shaft and bore a serious accident jammed. Meanwhile, in order to ensure having a larger engaging force - The binding surface strength, thermal suits to be processed with, but not too smooth, because certain surface roughness (typically Ra3.2), against axial movement flattened, after cooling, make the bonding strength of the inner and outer parts of a larger, can transfer torque as well. 2. When the heating temperature is determined after a certain workpiece materials, the minimum heating temperature depends on the accommodating member with the surface and the amount of interference required assembly clearance. Directly affects the size of the assembly gap assembly time, in order to prevent an inclusive piece cooling contraction, time must be limited to the assembly, the assembly should be set aside to correct the gap concentric method http://www.lzqcj.com/news/115.html