2. The horizontal deviation of the two steel rails at the front end of the switch rail, the middle part of the straight and curved connecting rail and the rear part of the switch is not more than 5mm;
3. The horizontal line of the railway turnout is visually smooth, with a 10-meter chord not exceeding 10mm, and the curve is visually rounded, using a 1-meter chord to measure the difference between the positive vectors of two adjacent points not more than 2mm, and a 2-meter chord to measure two adjacent points The positive vector difference is not more than 3mm;
4. The front and back of the rail are visually smooth, with a 10-meter string not exceeding 10mm;
5. The height of the two track surfaces and the left-right error of the inner side at the junction of the railway turnout shall not exceed 2mm;
6. The tip rail is closely attached to the basic rail, the gap is not more than 2mm, and there is no jump. The damage length of the switch rail should not exceed 100mm, and the height difference between the top surface of the switch rail and the basic rail should not exceed 2mm;
7. The distance between the heart rail and the working edge of the guard rail is 572mm, and the deviation is ±2mm;
8. The guard rail parts are complete, the installation is firm, and there is no looseness or failure. The center rail is perpendicular to the center of the working side of the guard rail, and the deviation is plus or minus 50mm;
9. The vertical wear of the core rail at the top surface width 35mm and the wing rail throat should not exceed 7mm, the rivets are not loose, and the welds are not cracked;
10. The sliding bed board should be attached to the bottom of the rail, and the gap should not exceed 2mm;
11. The vertical wear of the basic rail and the connecting rail is not more than 7mm;
The installation of railway switch is related to the safety of the line, so we must regulate it according to the standard. If you have any questions. You can contact Kingrail parts. We specialize in the production of railway fasteners. Kingrail parts will give you the best answer.
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