Apron feeder is a professional feeding equipment, can be widely used in cement, mining, coal, chemical, metallurgy and other industries, with large processing capacity, low operating costs, wear and durable advantages, less wearing parts, under normal circumstances the service life of up to 8-10 years. However, we should pay attention to strengthen the inspection and investigation of apron feeder in the process of normal use. Let's introduce the inspection precautions and maintenance tips about apron feeder.
1.Apron feeder for sale should always maintain a certain thickness of material on the apron plate in use, generally not less than 200mm, and is not allowed to put material directly on the apron plate in the unloaded state. When unloading cannot be avoided, a layer of fragments should be laid on the apron plate before unloading to prevent direct impact on the apron plate. When the bulk material is blocked, it is not allowed to discharge in the form of explosion; 2.After installation, the distance between the upper end of the apron port and the upper end of the apron plate should not be less than 2 times the material bulk, to ensure the smooth flow of materials and improve the service life of the apron plate. When installing the guide plate, a gap of 50-100 mm should be left between the guide plate installation and the baffle plate on both sides of the chain plate to avoid material overflow and friction between the material and the baffle plate. The distance between the bottom edge of the guide plate and the surface of the chain plate is maintained at 10-25 mm to prevent material spillover, and the axial line of the tension device should leave a certain space from the back wall of the silo, generally 350-500 mm, which is easy to repair and disassemble;
3.Apron feeder for sale When the pin sleeve within the pitch of the track chain is worn to more than 7 mm, the shaft sleeve should be turned an Angle or replaced with a new chain;
4. When removing the expansion sleeve, loosen all screws first, but do not remove all screws, take off the galvanized screw and washer, screw the removed screw into the auxiliary screw hole of the front pressure ring, gently tap the head of the screw, so that the expansion sleeve is sent, and then pull out the screw, the expansion sleeve is pulled out;
5.Apron feeder for sale installation, should be the original installation of the joint surface clean, evenly coated with a thin layer of lubricating oil (does not contain molybdenum disulfide), the expansion of the sleeve screw with torque wrench diagonal cross evenly tighten;
6.When installing the rolling bearing of the head device, the small clearance should be ensured to be about 0.08mm, and the radial clearance can be reduced between 0.09-0.11mm. The small clearance of the rolling bearing of the tail device should be guaranteed to be about 0.055 mm, and the radial reduction can be between 0.06-0.07;
7.Apron feeder for sale Head device roller bearing inside the bearing seat disassembly. First remove the drive device, then remove the bearing seat upper cover, cover, spacer, stop ring and other parts, and then install the loading washer MB74H and the loading nut M74H, by screwing the loading bolt on the loading nut, so that the conical bushing is displaced and the rolling bearing is removed. When reinstalling and replacing the bearing, clean the bearing before installation, place it on the given position of the support shaft after slight oil removal, and then install the conical shaft sleeve, and use the press sleeve to tighten the conical shaft sleeve by screwing the bolt to achieve the fixing of the bearing. The degree of compression of the bearing depends on the change of the radial clearance of the bearing. The allowable radial clearance is 0.08 mm, and the radial clearance is reduced from 0.09 to 0.11 mm.
8. When replacing apron feeder for sale, the bolts connecting apron and track chain must be coated with 271 Loctite anaerobic adhesive to prevent loosening, and torque wrench should be used. The tightening torque of each bolt is 550N.m;
9. The operator should be familiar with the structural principle of apron feeder for sale. Before each shift operation, check whether all parts are normal and whether the connecting bolts of the chain plate are loose.
10.Apron feeder for sale properly operate each bearing and reducer, and replace the new oil regularly. The replacement time is 300h, and the second time is not 300h;
11. Pay attention to check the working condition of apron feeder for sale chain plate, especially whether the connection bolts are loose, keep the chain tightness properly, if found to run off should be adjusted through the tension device;
12. If abnormal sound and failure occur during operation, stop operation immediately, check the cause carefully, and eliminate the fault;
All bearings are lubricated with ZG-4 calcium base grease (GB491-65), and S-P90# EP industrial gear oil (suitable for dry environment) or S-Pb90# EP industrial gear oil (suitable for wet environment) is recommended for the reducer.