Imported bearings in the use of maintenance and attention to the combine harvester

(1) The riveting parts in the harvester, such as a moving knife assembly, are generally made by cold extrusion and are not heated when riveted. If heated, the material strength is reduced. After riveting, the forming punch is used to strengthen the blade and the knife bar.

(2) Vulnerable parts, especially pins, tabs, sleeves, and horns, cannot be replaced with butter and repairs during maintenance. For example, parts that wear out to the limit for a long time will cause a decrease in other mechanical life. short.

(3) Axle type repair without balancing machine When repairing various shaft types to be balanced, a thrust bearing can be installed on one end of the shaft and clamped on the three claws of the lathe, and the other end can be used to withstand the top. If the lathe is short, it can be used. The center frame clamps the bearing mounted on the other end and corrects the balance. In the case of weights, tighten them with screws. Try not to use counterweights by electric welding.

(4) In the maintenance of imported bearings due to the variety of materials, it is difficult to purchase, can be used for processing of old axles currently China's axles are mainly based on 45 # carbon steel, quenching and quenching if conditions are not good , Oxygen and earthen furnaces can be used to heat the required parts to red in black water and placed in salt water, depending on the requirements.

(5) It is very difficult to pull the oil trough in the sleeve hole because of refueling in certain parts of the harvester when processing sets of parts. Wherever it is difficult to add oil, butter and heavy oil can be used, except for nylon sleeves. Where nylon sleeves are used, it is best not to replace them with cast iron, copper or aluminum, because nylon sleeves do not deform under certain impact.

(6) Keys and keyways on pulleys and shafts should be repaired to ensure that dimensions do not change ahead of time, and the size of the keys cannot be increased. Otherwise, the strength of the shaft will be affected. The keyways on the shaft can be welded in the opposite direction of the old keys by using a welding filler. To mill a keyway, the keyway on the pulley can be inlayed (transition fit) method. After inserting, use the countersunk screw to tap the key on the sleeve joint.

(7) Maintenance of the hydraulic part of the harvester Remove the distributor and the flow reducing valve, etc., and press each pipe with the air pump. The hydraulic oil should be filtered and vented when it is re-installed. The assembly hydraulic repair is mainly the seal. The seal is best removed and replaced. Imported bearings can help. For information on the maintenance of imported bearings in other mechanical equipment, please refer to the article “Maintenance of Imported Bearings in Diesel Purifying Chambers”.

(1) The riveting parts in the harvester, such as a moving knife assembly, are generally made by cold extrusion and are not heated when riveted. If heated, the material strength is reduced. After riveting, the forming punch is used to strengthen the blade and the knife bar.

(2) Vulnerable parts, especially pins, tabs, sleeves, and horns, cannot be replaced with butter and repairs during maintenance. For example, parts that wear out to the limit for a long time will cause a decrease in other mechanical life. short.

(3) Axle type repair without balancing machine When repairing various shaft types to be balanced, a thrust bearing can be installed on one end of the shaft and clamped on the three claws of the lathe, and the other end can be used to withstand the top. If the lathe is short, it can be used. The center frame clamps the bearing mounted on the other end and corrects the balance. In the case of weights, tighten them with screws. Try not to use counterweights by electric welding.

(4) In the maintenance of imported bearings due to the variety of materials, it is difficult to purchase, can be used for processing of old axles currently China's axles are mainly based on 45 # carbon steel, quenching and quenching if conditions are not good , Oxygen and earthen furnaces can be used to heat the required parts to red in black water and placed in salt water, depending on the requirements.

(5) It is very difficult to pull the oil trough in the sleeve hole because of refueling in certain parts of the harvester when processing sets of parts. Wherever it is difficult to add oil, butter and heavy oil can be used, except for nylon sleeves. Where nylon sleeves are used, it is best not to replace them with cast iron, copper or aluminum, because nylon sleeves do not deform under certain impact.

(6) Keys and keyways on pulleys and shafts should be repaired to ensure that dimensions do not change ahead of time, and the size of the keys cannot be increased. Otherwise, the strength of the shaft will be affected. The keyways on the shaft can be welded in the opposite direction of the old keys by using a welding filler. To mill a keyway, the keyway on the pulley can be inlayed (transition fit) method. After inserting, use the countersunk screw to tap the key on the sleeve joint.

(7) Maintenance of the hydraulic part of the harvester Remove the distributor and the flow reducing valve, etc., and press each pipe with the air pump. The hydraulic oil should be filtered and vented when it is re-installed. The assembly hydraulic repair is mainly the seal. The seal is best removed and replaced.

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