Advantages of cold shrink assembly box

2020-12-18 11:24:39

　　 cold shrinkable assembly box can be used for the interference cold assembly of various motor shafts, gears, bushings, steel sleeves, dies, valves, bearings, bushings, and mechanical parts. Using the principle of thermal expansion and contraction, liquid nitrogen is used as the refrigerant to reduce the size of the workpiece and perform cold assembly. That is, the parts that need to be installed in the base hole are first cooled, so that the outer dimensions are reduced, thereby creating an assembly gap, so that the parts can be easily assembled as a cost-effective assembly equipment.

　　This equipment is an assembly method that uses a refrigerant to cool the parts that need to be installed in the base hole, so that the outer dimension shrinks, and an assembly gap is created between the assembly surfaces to facilitate the assembly of the parts. It adopts microcomputer intelligent electronic temperature controller, electronic digital display temperature control, temperature digital adjustment setting, digital display, adopts imported compressor cascade refrigeration, all copper pipelines are tightly leak-proof, excellent performance, reliable and durable. Equipped with movable casters, easy to use. With the advantages of reasonable design, exquisite craftsmanship, excellent material, high stability, simple operation, economical and practical, green and energy-saving, and durable, it is used in tuna freezing and refrigeration, industrial freezing, electronic low-temperature experiments, university experiments, scientific research experiments, and low-temperature storage of agricultural seeds. It is widely used in refrigeration and freezing industries to meet the low temperature needs of different industries such as food, chemical, pharmaceutical, electronics, aviation, and petroleum.

　　 There are three methods for assembling the cold shrinkable assembly box: cold assembly, hot assembly and press-fit assembly. Compared with hot assembly and press-fit assembly, cold assembly has the following advantages:

　　1. Safety: The cold assembly process is safer and more reliable, and the workpiece is not easily damaged; the hot assembly process has a high temperature at the site, which is likely to cause personal burns, and the press-fit assembly is easy to damage the workpiece.

　　2. Manufacturability: high quality of cold assembly, good centering of the workpiece, and strong load-bearing capacity; the quality of hot assembly is not easy to control, the workpiece is easy to deform, and the part and the base hole are not firmly combined in the press-fit assembly.

　　3. Operability: The cold-shrinkable assembly box is simple and convenient to operate, economical and practical; the hot assembly process is complicated, requiring workers to repeatedly check the aperture size, and the press-in assembly requires that the center line of the hole and the shaft is consistent.