Diaphragm coupling in the user's use of the range is more common, manufacturers in the choice of coupling, according to the use of mechanical conditions to choose the appropriate specifications. So, diaphragm coupling (also known as laminated, steel coupling), is a promising, new into use, can replace the tooth coupling of two shaft coupling device. Among them, the diaphragm group is composed of a number of thin stainless steel coated diaphragm, through which the torque is transferred to the two shafts connected by the rock coupling. Due to the manufacturing and installation errors, bearing deformation, thermal deformation and the sinking of the frame, the relative deviation of axial, angular and radial partial axes between axes will cause additional load on the shaft, bearing and coupling. The diaphragm coupling under working conditions of the unit can absorb the three-way offset between axes through the flexibility of the diaphragm, and the diaphragm coupling under working conditions can transfer large torque, and has the advantages of simple structure, convenient processing, no lubrication, so it is widely used in ship, petrochemical industry, machinery manufacturing and other fields.

Notes for processing diaphragm coupling:

1, the whole machine has fewer parts, small volume, light weight, is designed into the trapezoidal section of the spring and the trapezoidal groove of the fit is particularly convenient, close, so that the assembly and disassembly, maintenance is easier than the general coupling.

2, diaphragm coupling transmission rate, its short-term carrying capacity is twice the rated torque, running.

3, aluminum alloy shell to protect the spring to avoid running out, and the shell is full of butter, not only make good lubrication, but also make the noise when the spring meshing is absorbed by the butter damping and removed.

4, because the spring plate and tooth arc surface is point contact, so that the coupling can obtain greater flexibility. It can be installed in the case of radial, angular and axial deviations.

Diaphragm coupling structure: mainly composed of metal diaphragm group (diaphragm), half coupling, middle section, compression element, bolt, lock nut, washer and so on. The working principle is as follows: the torque is input from the half coupling at the active end, the torque is transmitted to the diaphragm group through the main torsional bolt arranged along the circumference, and then the diaphragm group is transmitted to the middle section through the bolt, and is also output by the diaphragm group, bolt and half coupling at the other end. The metal diaphragm is the key component of flexible coupling. It consists of a number of thin metal diaphragms which are superimposed to form a diaphragm group through which torque and motion are transmitted. The thickness of the diaphragm is generally 0.2mm~0.6mm, and the shape of the diaphragm is mainly ring type, wheel width type, connecting rod type, multilateral type and girth type.

Diaphragm coupling in use, compared with the gear coupling has more advantages, diaphragm coupling will not slide relatively, without lubrication and sealing, no noise, almost no maintenance, manufacturing is more convenient, can replace the gear coupling part of the work. Diaphragm coupling is widely used in the shafting drive of various mechanical devices, such as water pump (especially high-power, chemical pump), fan, compressor, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, naval high-speed power transmission system, steam turbine, piston type power mechanical transmission system, tracked vehicle, And the high speed, high power mechanical transmission system of the generator set, after dynamic balance has been widely used in high speed transmission shafting.