ML plum blossom couplingML type plum blossom coupling has simple structure, small radial size, light weight, small moment of inertia, suitable for...
Z4 type expansion joint sleeveCompared with the Z4 type, the Z2 type expansion coupling sleeve has a long joint surface and high centering accuracy. It is used for rotation accuracy...
SWC universal couplingSWC universal couplings can be widely used in metallurgy, lifting, engineering transportation, mining, petroleum, ships...
Z2 type expansion sleeveThe Z2 type expansion sleeve consists of an open double cone inner ring, an open double cone outer ring and two double cone...
JSB type serpentine spring couplingThe J-type serpentine spring coupling is a structured metal elastic coupling. J-type coupling with snake...Coupling manufacturersEver-Power MachineryTeach you how to choose a coupling
There are many types of couplings. On the basis of a correct understanding of the types, types and specifications of the couplings, the couplings should be selected according to the needs of the transmission system. We must first understand the comprehensive function of the coupling (especially the flexible coupling) in the transmission system, and choose the type and type of the coupling from the overall design of the transmission system.According to the prime mover category and working load category, working speed, transmission accuracy, two-axis offset conditions, temperature, humidity, working environment and other comprehensive factors to select the type of coupling.
Most of the commonly used couplings have been standardized or standardized. Under normal circumstances, it is only necessary to correctly select the type of coupling and determine the type and size of the coupling.When the speed is high, the load capacity of the vulnerable links can be checked and calculated. When the speed is high, the centrifugal stress of the outer edge and the deformation of the elastic element should be checked, and the balance inspection should be carried out.Select the structure of the coupling according to the needs of the supporting host. When the coupling is used in conjunction with the brake, a coupling with a brake wheel or a brake disc should be selected; when overload protection is required, the coupling should be selected; When connecting with flanges, the flange type should be selected; for long-distance transmission, when the axial size of the connection is large, it is better to choose the middle轴Or connect to the middle sleeve type.
Adjust the model according to the shaft diameter:
Initially selected couplingevenThe connection size, that is, the shaft hole diameter d and the shaft hole length L, should meet the requirements of the main and driven shaft diameters, otherwise the specifications of the coupling should be adjusted according to the shaft diameter d.It is a common phenomenon that the shaft diameters of the main and driven ends are different. When the torque and rotation are the same, and the shaft diameters of the main and driven ends are different, the coupling model should be selected according to the larger shaft diameter.In the newly designed transmission system, the seven shaft hole types in accordance with GB/T 3852 should be selected, and the J 1 shaft hole type is recommended to improve versatility and interchangeability. The length of the shaft hole is in accordance with the coupling product standard Provisions.
Choose connection form:
The choice of coupling connection type depends on the connection type of the main and driven ends and the shaft. Generally, the key connection is usually used, which is a one-key connection type and code. There are seven keyway types specified in GB/T 3852, four For keyless connections, the A-type key (flat key with single keyway) is more commonly used.
When choosing a coupling, you should also consider:
(1) The size and nature of the torque to be transmitted, the requirements for buffering and damping functions, and whether resonance occurs.
(2) The degree of relative displacement of the two shaft axes caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
(3) The allowable dimensions and installation methods are the operating space for ease of assembly, adjustment and maintenance.For large couplings, assembly and disassembly should be possible without the need for axial movement of the shaft.
Torque calculation of coupling:
According to the calculated torque Tc, an approximate nominal torque Tn can be selected from the standard series, and the selection should satisfy Tn ≥ Tc.The coupling model (specification) is preliminarily selected, and the allowable speed of the coupling [n] and the large radial dimension D and the axial dimension Lo can be found from the standard, which should satisfy the coupling speed n ≤ [n] .
Ever-Power Machinery Manufacturing Co., Ltd.Yes it isCoupling manufacturers, Mainly produces plum-shaped elastic couplings, star-shaped elastic couplings, drum-shaped gear couplings, diaphragm couplings, elastic pin gear couplings, elastic sleeve pin couplings, elastic columns Pin couplings, rigid couplings, tire couplings, slider couplings, universal couplings, roller chain couplings, serpentine spring couplings, industrial expansion sleeves, various couplings The selection of materials and workmanship are true for products such as couplings, fittings, water pump couplings and so on.