Although the crossover switch is widely used, it is a relatively weak link in the entire railway track. If the laying work is not done well when laying the switch, it is very likely that the locomotive will be damaged during operation. The momentum will destroy the track switch, causing dangers such as locomotive derailment.
1. Symmetrical arrangement: diamond-shaped cross is symmetrically arranged between two parallel lines. This is a commonly used type of crossover.
2. The function of the crossover line switch is equivalent to two sets of single crossover lines laid in opposite directions. It has a good effect on shortening the length of the station and improving the return efficiency. At present, cross-over lines have become one of the types of switches commonly used in urban rail transit projects in my country. Due to the complex structure of the rhombus-shaped intersection crossing crossings
there are certain disadvantages to operation, maintenance and manufacturing. However, the railway engineering department has accumulated rich experience in repair and maintenance to ensure that the crossing crossings The line is always in good technical condition, ensuring operational safety.
3. Shortened cross-over line: When the distance between two parallel lines is large, in order to shorten the length of the cross-over line, the heel end of the China Coal Single Turnout Fault and the heel end of the rhombus cross sharp-angle frog are There is a connecting curve between them, the radius of which should not be smaller than the radius of the switch guide curve. However, this arrangement will worsen the operating conditions of the train and increase the complexity of maintenance.
4. Asymmetric layout: In order to make it possible to use standard or existing single-open frogs and diamond crossings or when there are special needs, the diamond can be shifted to one side of the line to form an asymmetric layout. of cross-over lines.