Rail flat car manufacturers briefly describe the standards of rail wheels
2022-05-10
Electric leveling wheels are used to support the weight and operation of rail vehicles. The wheels of large cars generally use two rims, the two rims are single rim and non-rim, while the wheels of small cars mostly use single rim structure, when installed, the rim is placed on the outside of the track.
According to the form of the rim, the track wheel can be divided into single rim and no rim. Usually the large rim uses double rim, while the small rim is mostly single rim, and the position of the track rim is fixed during the installation. Wheels without rims are also installed with horizontal wheels to prevent disengagement.
Rail flat car factory wheel track wheels can be divided into columnar, conical and drum type according to the tread surface. When fitting the wheel, the wheel is mounted on a fixed mandrel and fixed to the frame with a fixed axle piece so that it can rotate freely on the axle. Sliding bearings or rolling bearings can be used between the wheel hub and the axle.
The size of the wheel track is mainly determined by the size of the wheel pressure, which increases the diameter becomes larger. However, if too large, the cost of equipment will increase, the wheel speed will be reduced, making the transmission mechanism complex.
The size of the wheel track of the electric flat car manufacturer is mainly determined by the size of the wheel pressure, increasing the diameter of the wheel pressure will become larger, but if it is too large, the cost of equipment will increase, and the wheel speed is reduced to make the drive mechanism complex. Therefore, it is often the case that the wheel pressure is reduced by increasing the number of wheels, when the wheel diameter cannot be increased. In order to achieve an even distribution of pressure per wheel, when the number of wheels exceeds four, an articulated balancing frame device must be used. Rail wheels with a mechanical drive speed of 30m/min or more, recommended for cast steel above ZG55 with surface quenching, quenching not less than HB320-350 and quenching depth not less than 5 mm, with manual or mechanical drive, speed below 30m/min, for cast iron grinding wheels HB180-240.
Facebook
Linkedin
