Research On The Influence Of Rigid Guide Failure In Vertical Shaft On Lateral Vibration Of Wire Rope

At present,coal is still the most important energy source.With the increase of mining depth and production capacity,the safety problems of coal resource mining are becoming increasingly prominent.During the operation of the hoisting system,it is necessary to use guide to limit the lateral vibration of the hoisting conveyance,among which the steel guide is the most common.The hoisting system’s safety and stability are totally determined by woring quality of steel guide.Therefore,it is very important to check the working condition of steel guide.The traditional steel guide test methods mostly adopted to monitoring the working condition of hoisting conveyance to indirectly judge the working condition of steel guide.The data which adopting this method may be affected by the movement of hoisting conveyance,and there are difficulties in installation and transmission signal and so on.Therefore,it is necessary to study the lateral vibration of hoisting main rope at the wellhead position,Discussion the detection of steel rigid through the lateral vibration status of the hoisting main rope,and provides an effective steel rigid detection method to ensure the safe and stable operation of the mine hoisting system.First,the paper analyzes the excitation source of the main rope vibration and derives the transverse excitation function of the head sheave and the steel guide,and establishes a physical model for hoisting the main rope vibration.The horizontal and vertical coupling vibration equation of the main rope is established by using the Hamilton principle.Considering the effects of the steel rigid and the head sheave excitation on the main rope vibration,the vibration control equation is discretized based on the Galerkin method,the vibration displacement curve of the main rope is obtained.Secondly,the vibration of the main rope based on image matching is studied.Using the algorithm to generate NCC images based on gray background,finding the location of the cave with the size of the object,and finding the relative motion of the moving machine to the status of the property.At the same time,due to the difficulty associated with the longitudinal algorithm,the differences in shape and shape of the original image of Harris’ pocket angle make it shorter during operation without slowing down the Measurement of the sensitivity is the main stringent demand for image enhancement.Finally,the paper proposes experimental work through a test program to compare it with the use of experimentation to test the validity of a mathematical model.The eyetracking system is used with the machine to design and develop the size of a large cable under the shouts of steel.The large expansion of the strand is under the influence of various steel.it is found.be able to.At the same time,it also shows that the algorithm emerging from the algorithm is capable of standardizing the external measurement of the cable.There are 46 figures,9 tables,86 references in this thesis.