Jinjia Machinery (Since 1990), we have specialized in the manufacture of bearings for excavator chassis components.Here are our main products, such as IDLERS, ROLLERS, SPROCKETS, TRACK LINK ASSY, as show
Track Roller is used to support the weight, and it is also one of the four wheels of construction machinery, so the importance of the supporting wheel is self-evident. Since the long-term driving of the bulldozer will inevitably cause the wear of the supporting wheel, then for How to take correct measures to solve the wear problem of bulldozer rollers?
The bulldozer track roller is one of the "four wheels and one belt". The four wheels in the "four wheels and one belt" refer to the Sprocket, Idler wheel, track roller, carrier Roller, and the belt refers to the track. They are directly related to the working performance and walking performance of the bulldozer, and their weight and manufacturing cost account for a quarter of the bulldozer's manufacturing cost.
The main wear parts of rollers, supporting sprockets and idlers are flanges and grooves. Under normal conditions, these parts are worn due to contact with the track joints, and generally the left and right wear are relatively uniform. In the abnormal state, the wear on one side is generally serious, which is the so-called "rail gnawing" phenomenon. Correctly analyzing the causes of the wear of the bulldozer rollers and taking appropriate measures can prolong their service life.
The solution to the wear problem of the bulldozer supporting wheel:
The first method is to change the angle of the seat cavity of the floating seal ring in the end cover from the original 15° to 10°, so as to increase the contact surface between the end cover and the O-ring, and prevent the relative rotation of the O-ring and the seat cavity, so that the O-ring The seal between the ring, the end cover and the wheel body is more reliable.
The second method is to increase the size of the seat cavity of the floating seal ring formed by the wheel body and the end cover to reduce the pressure and frictional resistance of the contact surface of each pair of floating seal rings, thereby reducing the calorific value of the contact friction of the floating seal rings.
The third method is to increase the diameter of the waist of the bulldozer supporting wheel to increase the volume of the oil chamber at the wheel waist to ensure sufficient lubrication. By increasing the seat cavity distance, the oil storage space at the floating seal ring is increased to ensure that the lubricating oil can effectively cool the floating seal ring. An oil groove is made on the inner wall of the copper sleeve to make the contact surface with the wheel shaft fully lubricated; at the same time, an oil hole is drilled on the inner wall of the wheel to ensure that the lubricating oil can circulate.
The track rollers of the bulldozer carry the mass and operating load of the bulldozer itself, and the attributes of the track rollers are an important standard to measure its quality. Understanding and mastering the correct maintenance method for bulldozer roller wear can ensure better use of bulldozer rollers. In order to avoid affecting the overall use, the wear problem of the bulldozer supporting wheel should be solved immediately.
Post time: Dec-08-2022
