The role of coupling in dehumidifier

XINLAN analysis has two types: fixed and movable:

①FixedCoupling: There are sleeve couplings, flange couplings and clamp couplings.The rigid fixed coupling is simple in structure and easy to manufacture. The instantaneous speed of the two shafts is the same, but it is required that the connected two shafts remain on the coaxial line without relative displacement to avoid additional dynamic load.Among them, the flange coupling has accurate centering, good rigidity and strong torque transmission capacity.The sleeve coupling has a small radial dimension and small moment of inertia, and can be used for transmissions with frequent starting and constant speed changes.Jacketed couplings are often used to connect vertical shafts, and the shaft does not need to move axially during assembly and disassembly.

②Removable couplings: gear couplings, chain couplings, cross slide couplings and universal couplings.The rigid movable coupling can compensate the relative displacement of the axis of the two shafts, thereby improving the working conditions.This relative displacement is caused by deformation of parts under load, sinking of the base and thermal deformation during the operation of the machine.The gear coupling is composed of internal and external gears with the same number of teeth and other parts. Comprehensive displacement is allowed between the two halves. It is widely used in high-speed and heavy-duty mechanical transmission.The chain coupling is composed of sprocket and chain with equal number of teeth installed on two shafts, allowing radial displacement, simple structure, reliable work, low quality and convenient maintenance, but it is not suitable for high-speed and frequent starting occasions.The Oldham slider coupling is composed of a middle slider and two grooved half couplings, allowing radial displacement, and is used in low-speed occasions.The universal coupling is used for the connection of two shafts with intersecting axes, and the angle between the axes of the two shafts can reach 45°.If the two axes do not coincide, the instantaneous speed of the driven shaft changes when the driving shaft rotates at a constant speed.Using two universal joints and an intermediate shaft (the forks of the intermediate shaft are in the same plane, and the angles between the two shafts and the intermediate shaft are equal), the same instantaneous speed of the two shafts can be obtained.In addition, there are other synchronous universal couplings with different structures, such as ball cage synchronous universal couplings.

     The relative displacement of the axis of the two shafts is compensated by the elastic deformation of the elastic element, and it has cushioning and damping performance (Figure 2).The elastic coupling is removable.The material of the elastic element is metal and non-metal.The metal elastic element has high strength, large bearing capacity, large and stable elastic modulus, and is less affected by temperature, but the cost is higher.Couplings using metal elastic elements include reed couplings, coil spring couplings, and coil spring couplings.The reed coupling has high elasticity and good damping performance, and is suitable for high-power occasions with large load changes.The coil spring coupling is composed of a ribbon spring wound between the teeth of the two coupling halves. Depending on the different tooth profile, it can be made into a coupling with constant stiffness or variable stiffness. The latter is suitable for two shafts with large torque changes. The connection between.

      The use of non-metal elastic elements is easy to obtain different stiffness, large internal friction, large deformation energy stored per unit volume, good damping effect, no lubrication during work, light weight, but low strength, small load-bearing capacity, and materials are easy to age and wear. The life span is short.Couplings that use non-metallic elastic elements such as rubber, nylon and polyurethane include elastic ring pin couplings, tire couplings, high elastic rubber couplings, rubber sleeve couplings, rubber plate couplings and nylon Pin couplings, etc.Elastic ring pin couplings are widely used in transmissions that require stable load, forward and reverse rotation, or frequent starting.The tire coupling is made of rubber or rubber fabric as an elastic element. It has low torsional stiffness and strong cushioning and damping capacity. It is suitable for wet, dusty, large impact, forward and reverse rotation and large relative displacement of the two shafts. It is widely used in lifting and transporting machinery.The rubber body of the high elastic rubber coupling is vulcanized on the metal inner and outer discs to form a combined ring, usually arranged in pairs, with high elasticity and good vibration damping performance.The rubber sleeve coupling and rubber plate coupling have simple structure, easy manufacture, and a wide range of applications.The nylon pin coupling is similar to the elastic ring pin coupling, but the structure is simpler, and the wear resistance and vibration damping ability are also strong.

Botou XINLAN Coupling Co., Ltd. is an enterprise specializing in the research and production of couplings.Our company has a variety of equipment and strong technical force. It is a manufacturer of various types of couplings. The main products are: various star- shaped elastic couplings, tire couplings, universal couplings, drum gears Type coupling, plum-shaped elastic coupling, rigid coupling, slider coupling, roller chain coupling, diaphragm coupling, elastic sleeve pin coupling, elastic pin coupling, Elastic pin gear coupling, water pump coupling, etc.