Crane Rail The main components

The railroad track is the main part of the rail transit. Rail and train wheels in direct contact with the quality of the direct impact on the safety and stability of the traffic, affecting the comfort of passengers ride.

In the course of operation, the rail will be in a long time in the "harsh environment" in the. Due to the dynamic role of the train, the natural environment and the quality of the rail itself and other reasons, the rails are often damaged, such as cracks, wear and other phenomena, resulting in reduced rail life, maintenance workload increases, maintenance costs increase, and even seriously affect traffic safety The Therefore, the timely damage to the rail to eliminate or repair, in order to eliminate the safety implied, to improve the comfort of passengers ride.

Commonly used remedial measures are coated with oil, rail grinding, etc., but due to the high efficiency of rail grinding, its extensive use in rail transportation. Among them, a very important device is a rail grinding machine.

The rail grinding machine is designed for grinding the top and sides of the inner and outer rails for the grinding of the main line, the turnout and the crossroads, with the track profile and the track wave wear measuring device. It has two main purposes: one is to maintain the rail type; the second is to reduce the surface defects such as rail wave grinding.

At present the use of a more extensive grinding car with 48 grinding head, the grinding of high precision, all the work by the computer control automatically detect and adjust the amount of grinding.

Maintain a good rail and rail surface can make rolling and dynamic load to a minimum, thereby extending the rail life, reduce fuel consumption and reduce vehicle maintenance.

The new lines are polished

Subway track project in the construction process, although each of the parts and processes are accurate calculation, strict checks, but each piece of short rails on the rail rail slope is slightly different. Due to the poor adjustment of the overall track bed and so on, it is difficult to adjust the rail base slope accurately. Through the grinding of the rail grinding machine, the construction error can be eliminated to a large extent, thus improving the wheel rail contact relationship.

  It is possible to correct the defects of the rails and improve the running surface of the rails. It can eliminate the flaws of the surface of the new rail, such as burrs and rust, to improve the finish of the working surface of the rails, Improve the new rail surface, reduce the train running noise, improve passenger comfort, delay the occurrence of rail disease.

In the process of running the crane, we must first determine the normal trailer track, where these things for everyone to explain:

1, the track joints to retain the gap, so that thermal expansion and contraction, the general gap 1-8mm.

2, the orbital joints at the horizontal displacement and high and low roughness error shall not be greater than 1mm.

3, two parallel tracks, the level of the level of error, the pillar shall not exceed 10mm, in other places shall not exceed 5mm.

4, the same side of the track, the height between the two pillars and adjacent columns between the standard error, shall not exceed B / 1500 (B for the distance between the columns, in mm), and up to no more than 10mm.

5, the track span, track center and beam center, the track is not a linear error, etc., shall not exceed the relevant provisions.

6, in order to prevent the electrical failure of the crane caused by equipment, the track should be grounded, the two corridor connecting the gap between the application of splints connected into one, grounding conductor should comply with the relevant provisions.