Comparison of Elastomer Cylindrical Gear Coupling Before and After Improvement

　　The basic parameters and dimensions of the elastic pin-tooth coupling are mainly determined by the diameter of the shaft hole.However, there is no specific reference for the basic parameters and main dimensions of the coupling and the diameter of the shaft hole.In actual production, there is a special case that the diameter of the shaft hole is smaller than the diameter of the coupling, which requires the pre-setting of the non-standard coupling.The motor and the output shaft are properly connected with an elastic pin coupling. The original structure has special conditions that cause the motor load transmission and aging. The specific reasons are analyzed and a new half-coupling structure is proposed for the failure of the motor coupling. Vision.

　　The connection between the motor and the coupling before the improvement is as follows: The appropriate position of the motor and the half coupling is: the length is, and there is no shaft system on the shaft. According to the assembly requirements of the motor, the torque transmission of the key link cannot be successfully realized.In the transition between the motor and the half coupling hole and between the motor and the half coupling hole, the torque is mainly transmitted by two screws fixed on the half coupling.In the operation process, the structure is insufficient, as follows:

　　1) The motor shaft is in line contact with the fixing screw, the contact surface is very small, and the transmission torque is very limited.

　　2) The threaded connection has no anti-loosening function.After many times of disassembly and long-term operation, the relative rotation and axial movement of the semi-coupling and the motor shaft will cause the equipment to fail to work.

　　The improved structure and office principles are based on the above situation.We have improved the semi-coupled structure.The semi-coupled group is first processed into a finished product, and then the machine tool is cut along the center of the shaft.Divide this thing into two pieces.The main part is a semi-coupled attachment as a locking block.The main body of the rear half of the coupling is improved from the motor end, and the inner hole is complete, which ensures the coaxial requirement of the motor shaft.The motor shaft, main body and locking block are passed through hexagon socket screws.It is connected with the spring washer, because the lock block type half coupling is cut after the finished product is processed, because this assembly will not affect the requirements for the coaxiality of the main body and the motor.With this structure, the torque transmission point has the original line and surface contact, which becomes the contact between the surface and the surface. The length of the axial contact increases, and the contact surface of the motor and the coupling or the surface of the object continue to increase.High torque can also be passed.The spring washer between the hexagon socket screw and the lock block has an anti-loosening effect.When the coupling rotates at high speed, the hexagon socket screw will not loosen.The coupler applying this structure method can successfully realize torque transmission through practical application.In other small coupler structures, the application of this structure can also achieve many good results.

　　The elastic pin gear coupling has good axial, radial and angular offset compensation performance, good damping performance, simple structure, stable and reliable operation, no noise and no lubrication.

　　Elastic pin gear coupling has good axial, radial and angular axis compensation performance, good vibration damping performance, simple structure, stable and reliable operation, no noise, no lubrication, convenient maintenance, simple disassembly and assembly, good process flow, and cost Low, can derive various structural situations, good versatility, wide application range, and easy to promote.One advantage of the coupling protrusion is that it only needs to be installed in one center.When the elastic element is changed, the half coupling does not move, the auxiliary working time can be reduced, the production efficiency is improved, and the installation is particularly difficult for the shaft centering, and the requirements are minimized.When assisted, it provides production efficiency, is especially suitable for axial alignment installation, and needs to minimize the auxiliary working environment.The elastic pin-pin coupling is a new type of high-performance coupling in my country. It combines the advantages of the different structures of the standard elastic coupling, such as the advantage of the quincunx elastic coupling: the elastic element is squeezed.The structure is simple and the reliability is high.Overcoming the shortcomings of the plum blossom elastic coupling: when replacing the elastic element and moving the half coupling, the double flange plum blossom elastic coupling can change the elastic element without moving the half coupling, but the structure is complicated and costly Tall.The mass and moment of inertia increase, and the scope of application is limited.When the same torque is transmitted, the radial size is much smaller than the radial size of the elastic sleeve pin coupling, and the mass is light and the moment of inertia is small.

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