What are the selection standards and industry standards for pump couplings?

Couplings are often used in our days. Pump couplings are the couplings that connect the pump and the motor. So what are the selection and professional standards for pump couplings? The following is the editor Bring content about it, hoping to make us have something to harvest!

Selection and occupational standards for pump couplings

There are many options for pump couplings. Generally, there are claw couplings, diaphragm couplings, elastic sleeve pin couplings, permanent magnet couplings, plum-shaped elastic couplings, and claw couplings. Shaft, nylon internal gear coupling.Each has its own benefits, and the following information is available for reference in terms of selection.

The center sliding block of the claw coupling is made of cloth-bonded bakelite or polyurethane. It is light in weight, simple in structure, convenient in equipment, and low in price. It is often used in small power occasions. It is suitable for small torque, high speed, and no sharpness. The two shafts of the impact are connected.The transmission torque of nylon slider is small, but it is more suitable for high-speed operation and does not need to be smooth. The code name of the water pump occupation is Bl104.

The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate for the relative displacement of the two shafts connected. It is a high-function flexible coupling with metal elastic elements. It does not need to be smooth, has a compact structure, high strength, and long service life. There is no rotating gap, not affected by temperature and oil pollution, and has the characteristics of acid resistance, alkali resistance, and corrosion resistance. It is suitable for shafting transmission in high temperature, high speed, and corrosive medium working conditions. It is widely used in shafting of various mechanical equipment.

This coupling is suitable for flexible transmission between shafts, allowing large axial radial displacement and angular displacement, and has simple structure, convenient repair, simple disassembly and assembly, low noise, small loss of transmission effectiveness, and long service life Equivalent, the semi-coupling is made of fine casting, the shaft hole and the keyway are drawn and molded, and the inner gear coupling elastomer jacket can be selected from various hardness synthetic rubber grease rubber according to the user's application requirements; reinforced cast nylon elastomer And other information.

The pin of the elastic sleeve pin coupling is covered with a rubber ring, which has elasticity and ability to compensate axis displacement, but when the relative angular displacement is large, it is easy to wear, the structure is simple, the equipment is convenient, the replacement is simple, the size is small, and the weight is light. , The transmission torque is large, and it is widely used in various rotary pumps. The professional standard for water pumps is Bll01

Structural features and strengths: Compressible elastomer design, convenient assembly, reliable function, no special equipment is required; because the shearing elastic body design is selected, the coupling has the common anti-vibration and impact resistance capabilities, and the modification function is superior ;Three kinds of elastomers with different materials are available for selection to meet the needs of different use occasions, and there are two ways of one body and two bodies

The permanent magnet coupling is a new type of coupling that connects the prime mover and the working machine through the magnetic force of the permanent magnet. It does not require a direct mechanical connection, but uses the mutual effect between the rare earth permanent magnets, which can be penetrated by the magnetic field. The transmission of mechanical energy is carried out through a certain space interval and the characteristics of the material data.The appearance of the magnetic coupling completely solves the leakage problem of the dynamic seal in some mechanical equipment.

Plum-shaped elastic couplings are mainly suitable for frequent starting, forward rotation, medium and high speed, medium torque and high reliability operations, such as: metallurgy, mining, petroleum, chemical, lifting, transportation, light industry, textiles, water pumps , Fan, etc.The plum-shaped elastic coupling has the following characteristics: stable and reliable operation, excellent vibration reduction, buffering and electrical insulation functions, simple structure, small radial dimension, light weight, and small moment of inertia, suitable for medium and high speed applications.

The center sliding block of the claw coupling is made of cloth bakelite or polyurethane. It is light in weight, simple in structure, convenient in equipment, and low in price. It is often used in small power occasions: L rubber coupling raw material is powder metallurgy product model: L -035 050 070 075 090 095 099 100 110 150 CL rubber coupling raw material is cast iron Product model: CL-090 095 099 100 110 150 190 225

The characteristics and use occasions of pump couplings

The pump coupling has good startability, which can transform the load starting of the motor into no-load transmission, complete the soft start of the working machine, reduce the starting current, adjust the transmitted torque, complete the overload maintenance, and have a certain compensation function.

The pump coupling has good startability, which can transform the load starting of the motor into no-load transmission, complete the soft start of the working machine, reduce the starting current, adjust the transmitted torque, complete overload maintenance, and have a certain compensation function. Matching with sex coupling can improve the mechanical transmission function.It is suitable for mechanical equipment that starts with load or starts frequently without speed regulation, such as centrifugal pumps, blowers, air compressors, belt conveyors, scraper conveyors, mixers, ball mills, etc.The operating principle and features are the same as the steel ball coupling, but the structure, shape and operation process are different. The steel ball type uses the rotor as the active end, and the steel grit type uses the shell as the active end. The same as the steel ball type, the steel grit can be modified. The amount of filling adjusts the transmitted torque and completes the function of overload maintenance.By changing different tension springs to adjust the sliding torque of the coupling, it can partially slow down the transmission of the shock load during starting, and actively skid during the load, which has the effect of overload maintenance.Horizontal rotation speed, connection, work balance, not only used for overload maintenance and no-load starting, but also mainly used for gathering and dispersing, tension control, servo mechanism, speed regulation, test loading, commutation, etc., generally called magnetic powder concentrator .

The content of the coupling is introduced above. After reading it, we should have a certain understanding of it. Interested friends can also learn more about the other coupling information we have collected.