The scene emergency repair hoist bearing wear, with simple maintenance way to deal with the problem

A, device, the cause of the problem analyzing axial render wear has a lot of, but the main reason is used to produce metal characteristics of the resolution of the shaft, metal is high hardness, but sex difference ( Cannot recover after a deformation) Poor, shock resistance, fatigue resistance is poor, and therefore easy to form the adhesive wear, abrasive wear, fatigue wear and fretting wear and so on, the big local axial wear is not easy to find, as long as the present machine high temperature, bouncing, such as sound, will only make people noticed, but how people perceive, big local axis has been wear and tear, thus forming machine downtime. Repair process analyze the traditional repair: repair welding is used by domestic for axial wear ordinary, shaft sleeve, pitting, etc. , if the downtime is short and spare parts, general will adopt to change the new shaft. Repair welding machining process itself is easy to make the shaft part appearance produces thermal stress, form the hidden trouble of the broken shaft, repair welding and machining process needs spend a lot of manpower and time on the equipment stop to remove, transport, and mechanism, its repair time is longer, synthesis of the high cost of repair, long-term production downtime will form a large number of economic losses to the enterprise. Xiangyang automobile shaft sleeve, pitting problems fitting surface is point contact repair process, not contact, to the equipment safe operation for a long time. Polymer composite materials to repair process: compared with the traditional repair technology, polymer composite materials has both strength and hardness of the metal requested, and what metal does not have 'concession'. Through effective repair wrist, to ensure maximum cooperation relationship between repair parts with the matching parts, at the same time prevent because of the increase of axial clearance form secondary wear. Application of polymer composite materials to repair worn parts stop at the scene, in guarantee repair precision and satisfy the request, based on the need for equipment to stop a large number of disassembly, repair cycle is short, ordinary 8 - Complete repair and installation work within 12 hours. The repair process of repair cost was lower than those of traditional repair process, the ordinary accounting based on amount of wear and tear to bearing level the amount of polymer composite materials, further accounting fix asset. Such repair data at 2211 f f the blue metal repair performance is more reliable. Third, macromolecule compound material repair steps ( 1) Remove the bearing, bearing, set aside operational space. ( 2) Shaft appearance treatment: baked oil, grinding, cleaning. ( 3) With a sample rushed pitting, pitting height slightly bigger than the standard size. ( 4) According to the proportion of mixed blessing the blue 2211 f metal repair materials, to an average without off color. ( 5) Bearing a exterior daub 2211 f metal repair materials, daub thickness is greater than the height of pitting. ( 6) Curing hot charging bearing, wait for the data. ( 7) Equipment housings, and other accessories. Note: appearance disposal, and knocked at the height of the pitting. Fourth, elevator shaft wear repair case