Ever-Power Co., Ltd.
Email: [email protected]
news
What are the two types of plum coupling?
The plum coupling is made up of polyurethane plum petals interlaced with two halves of the plum coupling with bolts. Each group of polyurethane plum petals is made up of several pieces.The elastic deformation of polyurethane plum petals compensates the relative displacement of the connected two shafts. It is a high-performance non-metallic elastic element winding plum coupling.Without lubrication, the structure is relatively compact, the elasticity is high, the service life is long, there is no rotation gap, and it is not affected by temperature and oil pollution.It has the characteristics of acid resistance, alkali resistance and corrosion resistance.The structure is relatively simple, and the assembly and disassembly are convenient.There are generally two types of plum couplings:
Spiral groove type: Spiral groove type elastic plum coupling is divided into single spiral groove type and double spiral groove type.He has a continuous multi-turn long-cut groove, this plum coupling has very good elasticity and very small bearing load.It can withstand various deviations and is suitable for correcting deflection and axial deviation, but its ability to handle eccentricity is relatively poor. Because the spiral groove needs to be bent in two different directions at the same time, a large internal pressure will be generated, thereby Lead to premature damage to the plum coupling.Although the long spiral groove type plum blossom coupling can easily bend under various deviations, it has the same effect on the rigidity of the plum blossom coupling under the torsional load.Excessive swing clearance under torsional load will affect the accuracy of the plum blossom coupling and weaken its overall performance.
Application: Due to its poor processing ability, it is suitable for low torque applications, especially in connection with encoders and other lighter instruments.
Parallel groove type: Parallel groove type elastic plum coupling usually has 3-5 grooves to cope with the problem of low torque rigidity.The parallel groove type takes into account that the cutting groove can be shortened without reducing the ability to withstand the correction deviation. The short cutting groove can increase the torque rigidity of the plum coupling and overlap together, so that it can withstand considerable Torque.
Application site: This performance makes it suitable for light load applications.For example, the connection of a servo motor and a ball screw.However, this kind of performance will increase the bearing load as the groove size increases, but in most cases, it can effectively protect the bearing.Increasing size means increasing the ability to withstand eccentricity.
Spiral groove type: Spiral groove type elastic plum coupling is divided into single spiral groove type and double spiral groove type.He has a continuous multi-turn long-cut groove, this plum coupling has very good elasticity and very small bearing load.It can withstand various deviations and is suitable for correcting deflection and axial deviation, but its ability to handle eccentricity is relatively poor. Because the spiral groove needs to be bent in two different directions at the same time, a large internal pressure will be generated, thereby Lead to premature damage to the plum coupling.Although the long spiral groove type plum blossom coupling can easily bend under various deviations, it has the same effect on the rigidity of the plum blossom coupling under the torsional load.Excessive swing clearance under torsional load will affect the accuracy of the plum blossom coupling and weaken its overall performance.
Application: Due to its poor processing ability, it is suitable for low torque applications, especially in connection with encoders and other lighter instruments.
Parallel groove type: Parallel groove type elastic plum coupling usually has 3-5 grooves to cope with the problem of low torque rigidity.The parallel groove type takes into account that the cutting groove can be shortened without reducing the ability to withstand the correction deviation. The short cutting groove can increase the torque rigidity of the plum coupling and overlap together, so that it can withstand considerable Torque.
Application site: This performance makes it suitable for light load applications.For example, the connection of a servo motor and a ball screw.However, this kind of performance will increase the bearing load as the groove size increases, but in most cases, it can effectively protect the bearing.Increasing size means increasing the ability to withstand eccentricity.
Recommended
- What to check for damage to the coupling 2019-12-09