Application characteristics and structure of tire coupling

　　The common and different points of tire couplings are divided into two types: convex type and concave type. The convex type is divided into integral frame type, boneless plastic type and radial cut type.The inner side of the tire ring is connected to the steel frame by vulcanization, and nuts are welded to the bolt holes on the frame.When assembling, the bolt and the two coupling halves are connected by a flange. The torque is transmitted by tightening the friction force between the tire and the flange end surface. The torsional shear deformation occurs when the tire ring is working, so that the tire coupling has a better performance. High elasticity, the ability to compensate the relative displacement of the two shafts is great.Moreover, it has good damping performance, simple structure, no need for lubrication, and more convenient assembly and maintenance.The disadvantage is that the bearing capacity is not high, and the shape and size are large.As the relative torsion angle of the two shafts increases, the shape of the tire is distorted, and the axial size is slightly reduced, which will generate a large additional axial force on the two shafts, thereby increasing the bearing load and reducing the bearing life.When the tire coupling is running at high speed, the centrifugal force on the outer edge of the tire expands outward, thereby further increasing the additional axial force.Therefore, when installing the coupling, measures should be taken to make the direction of the stress of the tire opposite to the direction of the stress generated during work to offset part of the additional axial force and improve the working conditions of the coupling and the two bearings.

　　Their common feature is that the tire ring is connected to the half-shaft coupling to realize the two-shaft connection.

　　1. The tire coupling does not require lubrication, saving maintenance costs;

　　2. Article 2.The wear of the tires at the wear parts of the coupler is clear at a glance.It can be judged directly, no need to stop and disassemble, maintenance and replacement are very convenient.

　　3. The wear replacement and installation of the tire joint are very simple, and the motor and equipment are not disturbed when the tire is replaced;

　　4. The two drive shafts of the tire coupling are allowed to have a large eccentricity, the angular displacement is allowed to be 4 degrees, the parallel displacement is up to 6 mm, and the axial displacement is 8 mm;

　　5. The tire coupling has good shock absorption performance. In a certain system, the coupling can absorb vibration "about" 12 degrees;

　　6.Tire coupling can solve the problem of torsional vibration by choosing tires of different stiffness;

　　7. The tire coupling can be driven bidirectionally, because the bidirectional winding of the rope bears the internal load.

　　8. The tire coupling is completely free from clearance, and reverse drive is ideal, especially when it is geared;

　　9. Tire coupling chooses fireproof or anti-static tires, which can be used in fire-proof and anti-static occasions;

　　10. Tires and various types of flange couplings, FHBM positioning sleeves, cardan shafts, high-speed shafts;

　　11. The tire coupling can be made of a tapered sleeve or a short sleeve to make the transmission structure compact;

　　12.The tire coupling has a simple structure and is easy to assemble.When changing the body, there is no need to move the coupler axially.

　　Allowable speed of coupling

　　The allowable speed range of the coupling is calculated based on the allowable linear speed of the different materials of the coupling and the larger outer edge size.Couplings of different materials, varieties and specifications have different allowable speed ranges.Changing the material of the coupling can increase the allowable speed range of the coupling.The material speed of steel is greater than that of cast iron.For the coupling of 5000/min and working conditions, the centrifugal force of the outer edge of the coupling and the deformation of the elastic element should be considered, and the balance should be reached.The elastic coupling of non-metal elastic elements should not be used at high speeds, and the deformation of the elastic elements should be formed at high speeds.High-precision flexible couplings should be used.The high-speed couplings currently used abroad are diaphragm couplings and high-precision drum-tooth couplings.

　　The coupling must have the characteristics of high torque rigidity, zero rotation clearance, and elastic body to compensate the radial, axial, angular deviation, clockwise and counterclockwise rotation produced by the manufacturing machinery during the transmission process.

　　In the past, the coupling was only regarded as a mechanical part, but with the diversification of the use of the coupling itself, the realization of the coupling is to achieve a higher level of functionality.It has been transformed from a simple mechanical component to an important mechanical element that can affect the function of the entire mechanical system.

　　As long as you pay attention to the above aspects in the process of purchasing the coupling, you can buy a good coupling to make your use more convenient.