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在更换连杆铜套时,由于连杆小头内孔磨损、经常发现铜套在连杆小头孔内松动。一、铜套在连杆小头内孔松动的原因1.换装新铜套时,由于方法不当,使铜套产生变形。装配后没有达到规定的配合标准; 2.有些配件厂生产连杆,小头内孔两边不做倒角。装配新铜套时,锋边将铜套外径刮掉一层铜屑,使铜套外径变小,装配后达不到配合标准; 3.铜套内孔和活塞销配合间隙太小或在运转中缺油,
When replacing the connecting rod copper sleeve, the copper sleeve is often found loose in the small hole of the connecting rod due to the wear of the inner hole of the connecting rod small head. First, the copper sleeve in the connecting rod small hole loose reason 1. Dressup new copper sleeve, due to improper methods, the copper sleeve deformation. After the assembly did not meet the required standards; 2. Some parts factory production link, small holes on both sides of the hole do not do chamfer. Assemble a new copper sleeve, the front edge of the outer diameter of the copper scraped a layer of copper scrap, the outer diameter of the copper sleeve becomes smaller, the assembly does not meet the standard; 3. Copper sleeve hole and piston pin with the gap is too small or Lack of oil in operation,