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How to use track pressure plates and rail pressing device

 


How to use track pressure plat

es and rail pressing device

The track pressure plates are connecting pieces for reliable fixing between the crane rail and the ground (or the bearing beam). It is arranged along the entire length of the track, and one set is set every 500mm. One set is two pairs. In the state, it can follow the vertical and lateral impact force and can withstand the additional lateral force generated by the crane’s skew operation.
The track pressure plates adopt adjustable combined rail pressing plates, which can overcome the failures of the traditional rail pressing plate in use. The traditional pressing plate is often directly pressed with the rail steel to the steel rail in use. Some track pressure plates can no longer be adjusted in the horizontal direction after installation, so after normal loading or thermal expansion and contraction caused by longitudinal movement of the track, it is easy to wear, causing the bolts of the pressure plate to loosen and the track pressure plates to rotate, causing the surface of the track to wear and gnaw. If the rail is broken, the rail will be broken in severe cases, which will also affect the wear of the main engine wheels and the damage to the drive mechanism. When using the adjustable combined track platen, the track can be fixed in the horizontal direction, and the position of the track can be adjusted horizontally. For example, the QU80 platen allows the lateral adjustment of the track to a distance of 15mm. For example, the QU120 pressure plate allows the lateral adjustment of the track to a distance of 20mm. And it has a self-locking function, which can reliably fix the track and prevent the track from shifting when it is pressed by a large wheel. Use elastic force to fix the track in the vertical direction. That is, the hot glue rubber tongue is pressed on the track indenter, and the tongue is made of synthetic rubber that is wear-resistant, oil-resistant, high-temperature resistant, and corrosion-resistant.
The bottom of the rail is laid with a rubber compound backing plate, and the rail is pre-compressed, which can prevent the rail from generating local rail lifting force during the movement of the large wheel pressure, resulting in loose bolts and affecting the damage of each device. It can also allow the rail to move longitudinally when the rail is heated and contracted, without causing wear to the pressing plate rail, and can keep the rail bottom surface of the rail in close contact with the rubber composite backing plate laid on the rail. In order to ensure that the crane can run as smoothly as possible, it is often used to lay welding rails today, that is, to weld all the rails of the crane into one whole, and there is no segmented joint in the middle. However, this type of installation requires higher installation requirements and has a greater thermal amount of expansion and contraction. The debuggable combined rail pressing plate is especially suitable for this type of rail fixing, which can eliminate the disadvantageous factors caused by the use of welded rails.

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