Jiangsu SWCBH telescopic welding universal coupling

The SWCBH telescopic welded universal joint uses the characteristics of its mechanism to make the two shafts not on the same axis, and the two connected shafts can rotate continuously when there is an axis angle β.

The SWCBH telescopic welded universal coupling has a bolt-free structure, and the bearing is fixed without bolts. The weak links are destroyed due to bolt shearing, which extends the service life and facilitates maintenance.

The universal joint is the weak link of the main drive system of the rolling mill. It often breaks and damages during the production process, which greatly restricts the improvement of the production efficiency of the rolling mill. For this reason, many scholars have carried out the structural and mechanical properties of the sliding universal joint. , In order to grasp the force status of the universal joint components, so as to improve the structure of the universal joint.The analytical method is used to derive the functional relationship between the stress on the end face of the fork head and the position of the end face, and the formula for calculating the strength of any cross-section of the fork head is derived.Under the premise of considering the existence of gaps, the load distribution of the slider-type universal joint is simplified, and the effective position of the equivalent force of the flat head and the fork head is improved, and the accuracy of the theoretical design is improved.The empirical formula based on test data is used to check the strength of the flat head, and a relatively ideal result is obtained.Using the space finite element method, the strength of the universal coupling is analyzed and calculated, and combined with the three-dimensional photoelastic experiment analysis, a simple strength calculation formula is obtained.Due to the complex structure of the universal joint components, the load and structure are simplified in the analysis and calculation, which makes the calculation result error larger, and the coefficient is often increased for the sake of convenience, resulting in the huge structure of the universal joint and lower efficiency.With the rapid development of computers, the convergence method of for has begun to be used in large quantities, and the finite element method has developed vigorously, providing a simple and convenient calculation and analysis method for the construction of complex parts.The finite element method analyzes and calculates the parts of the coupling, and accurately grasps the stress distribution of the flat head and the fork head and the dangerous parts.However, the load loaded in the finite element analysis process is derived from the analytical method, resulting in a large deviation between the degree of stress analysis and the actual situation.In view of this situation, a systematic finite element analysis was performed on the cross shaft universal joint. The load on the components of the universal joint in the analysis was close to its real load, and the calculation result was accurate.However, no one has worked on the finite element optimization of the sliding universal joint system.

Models included in universal couplings:

SWP, SWC type cross shaft universal coupling cross bag JB/T7341-94

Cross shaft universal coupling for straightening machine JB/T7846.2-95

WS, WSD type cross shaft universal coupling JB/T5901-91

WSH type sliding bearing cross shaft universal coupling

SWZ type integral bearing seat cross shaft universal coupling JB/T3242-93

SWP split bearing seat cross shaft universal coupling JB/T3241-91

SWC type integral fork cross shaft universal coupling JB/T5513-91

Slider universal coupling for straightening machine JB/T7846.1-95