The use of a plum blossom expansion sleeve coupling makes the manufacturing and installation of host parts simple. The machining of the shaft and hole for installing ML plum blossom expansion sleeve couplings does not require high-precision manufacturing tolerances like interference fits. When installing the ML plum blossom expansion sleeve coupling, there is no need for heating, cooling, or pressurizing equipment. Simply tighten the bolts to the required torque. And it is easy to adjust, and the hub can be easily adjusted to the desired position on the shaft. The plum blossom expansion sleeve coupling can also be used to connect parts with poor weldability; The plum blossom expansion sleeve coupling has a long service life and high strength. The plum blossom expansion sleeve coupling relies on friction transmission, without weakening the keyway or relative movement of the connected parts, and will not produce wear during operation; When the expansion sleeve is overloaded, it will lose its connection function and can protect the equipment from damage; The plum blossom expansion sleeve coupling can withstand multiple loads, and its structure can be made into various styles. According to the installation load, multiple plum blossom expansion sleeve couplings can also be used in series; The ML plum blossom expansion sleeve coupling is easy to disassemble and has good interchangeability.
Due to the ability of the plum blossom expansion sleeve coupling to combine the shaft hubs with large fit gaps, loosening the bolts during disassembly can make the connected parts easy to disassemble. When it is tightened, the contact surface tightly fits and is not easy to rust, and it is also easy to disassemble.
Installation: The expansion sleeve has been coated with lubricating oil before leaving the factory and can be directly installed and used. During installation, first screw in three bolts ④ evenly distributed along the circumference in the screw holes of the flange of the other part ①, and push the inner sleeve ① and outer sleeve ② apart. Then place the expansion sleeve in the hub hole of the design position, and tighten the bolts using a force measuring wrench. The tightening method is to only tighten each bolt to 1/4 of the rated torque each time. The tightening sequence is based on the opening, and the left and right are tightened symmetrically in sequence to ensure that the rated torque value is reached.
Disassembly: When disassembling the expansion sleeve, first loosen all bolts a few turns. Then cross tighten the bolts ④ into the disassembled screw holes to loosen the expansion sleeve.
Protection: During installation, it is strictly prohibited to use MoS2 oil to prevent expansion and contamination. On machines operating in the open air or in poor working environments, rust proof grease should be regularly applied to the exposed end face and bolts of the expansion sleeve, and a type of expansion sleeve with good rust resistance should be selected.