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The development standard of Ever-PowerLMZ-I plum blossom coupling

Publication time: November 2016, 05【L Small

    LMZ-I plum blossom coupling formulation standard: LMZ-I plum blossom coupling is a kind of non-metallic elastic element coupling, because its internal elastic body is plum blossom, it is called plum blossom elastic coupling. The current standard of inner LMZ-I plum blossom coupling is GB/T5272-2002, which is different from the original GB/T5272-1985 standard. Thermoplastic rubber is eliminated, and the hardness and material of the elastic element and the quality of the coupling are adjusted. And the moment of inertia is calculated according to the recommended calculation for the material: cast steel, small shaft hole and L. The installation of LMZ-I plum blossom coupling can be installed under the condition of machine cooling, or it can be installed when the machine is running. There will be many problems between these. When LMZ-I plum blossom coupling is hot-installed, the temperature needs to be heated to 250℃, the temperature cannot rise too fast when heating up, otherwise it will affect the temperature average of LMZ-I plum blossom coupling.Rigid movable type, rigid movable type allows radial displacement, radial displacement cross slider is made into a spherical surface with larger tooth side clearance, and the tooth top is made of a spherical surface, which has more tooth transmission torque-high load capacity and is used for heavy machinery.Flexibility is divided into several sub-categories. The answers are divided into two sub-categories: inelastic component flexibility and elastic component flexibility.The force on the cross shaft can be simplified as: the external force on the cross shaft is a distributed load, which is evenly distributed along the axial target, and the distributed load of the shaft section increases linearly from both sides along the contact arc.At least five or six sets are required for a CNC machine tool, and fifty or sixty sets are required for more.If some shaft parts require high strength and hardness, and some gears and shaft parts with keyways need to be milled and inserted after quenching and tempering, the hardness requirements are lower. LMZ-I plum blossom coupling is processed by machining methods such as turning, milling, and broaching, and then undergoes overall heat treatment.In order to ensure sufficient mechanical strength, there is also a claw plate on the market that is a casting, which can be produced in large quantities and eliminates processing losses.So the price is much lower than machining. But the performance of castings is not very good.

  It is better not to use it in some important occasions.In addition, the claws of the casting are prone to snapping under high speed or high load conditions.Types of plum blossom couplings: LMZ-I plum blossom couplings are divided into two types, one is the traditional straight claw type, and the other is the curved (concave) claw type zero-clearance coupling.The traditional straight-jaw type LMZ-I plum blossom coupling is not suitable for high-precision servo transmission applications.The zero-backlash claw type LMZ-I plum blossom coupling is evolved on the basis of the straight claw type, but the difference is that its design can be suitable for the application of the servo system. It is often used to connect servo motors, stepping motors and ball screws. .The curved surface is to reduce the deformation of the elastic plum spacer and limit the influence of centripetal force on it during high-speed operation.The zero-clearance claw coupling consists of two metal sleeves (usually made of aluminum alloy, stainless steel can also be provided) and a plum blossom elastic spacer.

  When disassembling the LMZ-I plum blossom coupling, the connecting bolt is usually removed first.Because a layer of grease, corrosion products and other deposits are deposited on the surface of the thread, the bolt is not easy to disassemble, especially for the heavily corroded bolt, it is very difficult to disassemble.Choose suitable tools for the disassembly of the connecting bolts, because the bearing surface of the outer hexagon or inner hexagon of the bolt has been slipped and damaged, and the disassembly will be more difficult.For bolts that have been rusted or have a lot of grease, solvents (such as rust loosening agents) are often used to spray the joints of the bolts and nuts to allow the solvent to penetrate into the threads, which will be easy to disassemble.If the bolts cannot be removed, the heating method can be used, and the heating temperature is generally controlled below 200°C.By heating, the gap between the nut and the bolt is enlarged, the rust is also easy to fall off, and the bolt disassembly becomes easier.If none of the above methods work, only damage the bolts, cut or drill the bolts, and replace them with new bolts when assembling.The new bolts have the same specifications as the original bolts. The new bolts used for high-speed equipment couplings are also weighed so that the new bolts have the same weight as the connecting bolts on the same set of flanges.Due to the failure of the LMZ-I plum coupling itself, it needs to be disassembled. First, the entire coupling must be carefully and carefully inspected (especially for the damaged coupling), and the cause of the failure should be found out.

  The main products of our company are LMZ-I plum blossom coupling, SL cross slide coupling, LXZ (formerly HLL) pin coupling, JZMJ diaphragm coupling, GCLD drum gear coupling, etc. For products, customers in need can call our hotline: 13673177240 Contact: Manager Qin For more details, please visit our website: