In bilateral mobile cut cut thick plate shear frame joint bearing wear online repair

In bilateral mobile cut cut thick plate shear frame joint bearing online repair the 2021 - seat wear 01 - 7 f the blue' Abstract 】 Medium thickness plate have been introduced on bilateral mobile cut cut cut frame joint bearing wear status, and the reason analysis, through the practical application proved that using f the blue polymer composite technology with proprietary tooling effectively solved the mobile cut, cut broken edges on shear bearing wear problem, ensure the normal operation of two-way shear. 【 Keywords 】 Bilateral shear; Bearing shell; Mobile cut cut; Bearing wear; The scene to repair; Polymer composite materials; Medium plate production of 1, bilateral shear equipment introduction is an important equipment of medium thickness plate finishing section, its effect is trimming, on both sides of the steel plate through the arch width adjustment, shearing width of steel plate out of contract. A rolling cut type bilateral shear is cut by a fixed and a move to cut, the shearing machine relatively installed on the same base. Every cutting machine has a longitudinal scissors and cut the waste edge trimming the broken edges of the scissors, their respective by main motor through a gear transmission device and three parallel to the crankshaft. Each main component of the shearing machine include: frame, transmission device, tool holder and fixed device, cutting edge clearance adjustment mechanism of shear blade, back mechanism of shear blade and feeder and clamp device, pinch roll, cut transverse cut around the synchronous mechanism, mobile device, roller beam and broken edges chute, fast tool change device, thickness measuring device, thin oil lubrication system, dry oil lubrication system, hydraulic piping system (such as See figure 1) 。 Bilateral is cut by a fixed and a mobile, cut the two shear machine relatively installed on the same base. Every cutting machine has a longitudinal scissors and cut the waste edge trimming the broken edges of the scissors, their respective by main motor through a gear transmission device and three parallel to the crankshaft. On the tool carrier through two connecting rod and crankshaft connected, one end of the crankshaft bearing on the front panel, the other end bearing in the main reduction box. Move through the crankshaft and connecting rod drive the cutting tool carriage movement on the shear work, shear is mainly composed of connecting rod, movement on shear plane, broken edges cut cut cut planes, saddle, bearing, skateboard, See figure 2) 。 2, equipment problems and failure analysis on mobile cut, cut broken edges cut frame joint bearing wear condition, the original design size of R310mm ( See figure 3) Maximize, uneven wear and tear, abrasion wear is about 0. 5mm。 Due to bilateral camber of cutting work is composed of shear to shear plane connecting rod drives the cutting edge work, on the shear plane when the shear steel stress is larger, so the analysis on a shear frame joint bearing wear reason as a result of the normal metal fatigue wear, the second is caused by a lack of prestressing force bearing fastening screw loosening or skateboarding not good pressure bearing, prompted a relative motion caused by bearing and bearing seat bearing wear condition. 3, equipment repair process 3. Class 1 traditional repair technology for shaft and bearing seat wear problem is generally used in repair welding, set shaft sleeve, etc. , if the short downtime and spare parts, generally adopts the new replacement spare parts. Repair welding machining process itself is easy to make shaft surface local produce thermal stress, cause the hidden trouble of the broken shaft, repair welding and machining process need to spend a lot of manpower and time to disassembly, transport and installation of equipment, the repair time is longer, the comprehensive repair cost is high. 3. 2 f the blue repair technology for mobile cut, cut broken edges on the shear plane using high polymer composite material properties, daub materials directly to the assembly process is adopted to repair. For shear plane fitting surface on bearing direct daub after surface treatment materials bearing installation, excess material extrusion to ensure the bearing fitting surface filling. Improve bearing force state. It is used in the plant has been used for many years, the effect is good, the annual bilateral shear overhaul replacing bearing shell polymer materials are used for filling repair. 4, equipment repair process 1 of the problem. Surface baked oil, grinding, cleaning; 2. Bearing on the back of the brush 803 release agent, dry spare; 3. Harmonic 2211 f metal repair material, apply to repair parts; 4. The bolt bearing assembly, assembly in place; 5. The repair is completed, waiting for the material curing. 5, the scene picture 6, summed up by the plant several times in recent years the f the blue technology products for bearing repair, continue to use process tracking, equipment use good, without exception, prove that the method of using the blue technology products equipment transmission parts wear and tear problems on-site repair has the high feasibility, this method can be effectively applied in other industries of all kinds of transmission parts wear problem.