Tyre coupling is divided into two major categories of convex and concave, convex with a frame is divided into a whole and with no overall style and radial bone incision three. Their common feature is the tire ring with bolts to connect the two halves of the coupling in order to achieve the two axes of the connection. Ring inside the tire and the steel skeleton with a curing method for bonding into one bolt hole on the frame is welded nut. Assembly with two halves of the coupling bolt and flange connection, relying on the tire and tighten the bolts to the friction between the flange face to deliver the torque, tires work with torsion ring shear deformation, so tire coupling device has high elasticity, the relative displacement of two-axis compensation for large capacity and good damping, and the simple structure, no lubrication, disassembly and maintenance are more convenient. The disadvantage is that carrying capacity is not high, the larger dimensions, with the two axes relative to the increase of torsion angle twist the tire shape, the axial dimension slightly decreases, a greater axis in the two additional axial force to increase and decrease the load bearing life. Tire coupling high-speed operation, the outer edge of the centrifugal force the tire outward expansion, will further increase the additional axial force. To this end, measures should be taken when installing the coupling, the stress in the direction of the tire when the stress and work in the opposite direction to offset part of the additional axial force, to improve the coupling and the two bearings of the work and conditions. 

 Features: Rubber components (tires body) bonded together with metal plate curing, the assembly bolts directly linked with the two half couplings, flexible, damping large, large amount of compensation. Simple structure, easy assembly, changing tires without axial movement when the coupling body.