In the process of applying coal mine cart wheels, there will also be failures due to some factors. When the failure cannot be handled, the coal mine cart wheels need to be replaced. However, for users, whether it is frequent failures of coal mine cart wheels or a short replacement cycle, it will cause great losses. In order to reduce the cost of use, timely maintenance and improvement of coal mine cart wheels are required to reduce the failure rate of coal mine cart wheels and prolong their service life.
1. Choose M type for the model of the seal, and improve the seal at the same time. The advantages of M-type seals are mainly manifested as combined seals, and corresponding springs are arranged on the inner side of the main lip of this seal, thereby increasing the tightness with the journal to a certain extent. By turning the main and auxiliary lips outward, the intrusion of water and slime can be further prevented.
2. In terms of bearing selection, the new type 310KA mine car special bearing is generally selected to improve the service life of the bearing to a certain extent. For the new type 310KA mine car special bearing, due to the larger diameter of the steel ball selected, the radial clearance of the bearing is further increased, and the bearing is greatly improved in terms of impact resistance and load carrying capacity.
3. Adjust the fit between the shaft and the bearing. For the fit between the shaft and the bearing, the traditional interference fit is changed to a clearance fit, so that a proper rotation clearance between the shaft and the inner ring of the bearing is maintained to a certain extent, and the service life of the bearing can be prolonged through the above treatment.
4. Set up the corresponding buffer device. For the mine car, in order to further reduce the additional impact load during the driving process, under normal circumstances, it is necessary to set the rubber pad between the bearing and the shaft, and use the rubber pad to reduce the instantaneous brush value of the bearing pressure to ensure the mine car The stability of the mine car, the road drop phenomenon can be avoided to a certain extent, and the safety and stability of the operation of the mine car can be greatly increased.
5. Lithium-based grease is used as the grease. For the wheelset, the main function of grease is: on the one hand, it lubricates the bearing and rubber lip; on the other hand, it has the function of waterproof and dustproof. In terms of mechanical stability, water resistance, etc., the mine-used No. Ⅱ lithium-based grease performs well. In addition, this kind of grease has the characteristics that it is not easy to be saponified in contact with water and is not easy to lose.
6. Properly raise the height of the outer rail by widening the curve gauge. When the vehicle is running on a curve, the rim of the wheel and the track are not parallel. Compared with the straight track, if the track gauge at the curve is the same, the wheelset will get stuck in this case.
7. Control the running speed of the mine car in the curve, and at the same time balance the distribution of centrifugal force and gravity, so as to avoid the operation accident of the mine car.
In general, through maintenance and improvement of coal mine cart wheels, the failure rate of coal mine cart wheels is further reduced and the service life is prolonged. Kingrail Parts has been producing and supplying coal mine cart wheels for many years, with various materials and complete models, which can meet the needs of the majority of users for mine cart wheels. Of course, if you still have doubts about coal mine cart wheels and want to know more about coal mine cart wheels, please log in to our company's official website for consultation: http://www.kirail.com/