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Guide shaft use question analysis
Apr 23, 2018

For the guide shaft, when calculating its torsional stiffness and checking it, it is mainly determined based on the amount of torsional deformation generated during its operation. It is usually the amount of twist angle per meter of shaft length. The torsional deformation of the guide shaft can affect the performance and the working accuracy of the machine. For example, the torsion angle of the camshaft of the internal combustion engine is too large, which will affect the correct opening and closing time of the valve.


In some hoisting transmission mechanisms, the torsional deformation of the guide shaft will affect the synchronization of its drive system. For shafts that are at risk of torsional vibration and shafts in the control system, large torsional stiffnesses are required. At the same time in the use of the process, you may also encounter the problem of wear. This is also a very common problem. In fact, there are many reasons why the shaft wears out.


However, the most important factor is determined by the characteristics of the metal material used to make the guide shaft. It should be noted that the general hardness of metal materials is relatively high, but during use, its wear is not easy to detect, only when the device appears high temperatures, large jumps, abnormal sound, etc., will cause people to notice, but when people find it, Most of the shafts are worn, causing the machine to shut down.


In response to this problem, people are also constantly improving their solutions. If the material of the guide shaft is No.45 steel, in the process of quenching and tempering, if only surfacing is used, internal welding stress will be generated. Under heavy load or high-speed operation, cracks may occur at the shaft shoulder. Even the phenomenon of fracture. If stress-relief annealing is used, it is difficult to operate, and the processing cycle is long and the maintenance cost is high.


For such cases, the use of macromolecule composite materials and nanotechnology is currently used to achieve the repair of the guide shaft. This not only significantly improves the maintenance efficiency, but also allows the superior performance of the guide shaft to be fully utilized.http://www.xhychromerod.com/