How to choose the crane rail fixing clips
crane rail fixing clips are widely used in crane rails. Of course, for different types of rails, we also need to choose suitable rail pressing plates to adapt to different loads. Generally speaking, the types of crane rails include lifting rails, railway rails, and square steel rails. The installation method of the track should also be selected according to the situation.
There are two kinds of rail beams commonly used for installing rails: one is a steel structure beam, and the other is a concrete prefabricated beam. Prefabricated concrete beams must have pre-embedded holes for bolts during installation, or pre-embedded bolts in prefabricated concrete beams.
The installation methods of crane rails include pressure plate fixation, hook screw fixation, welding and bolt combination fixation, etc. In order to adjust in the horizontal direction, the holes on the rail pressure plate are usually made as long holes, and for the vertical adjustment, pads can be added under the rail. When designing the rail pressure plate, it should have sufficient rigidity. Each pressure plate can be made into a single hole or double hole according to the size of the force. Only when the rail and the rail beam or the steel backing plate fixed on the rail beam are connected by welding, the rail can be welded on the rail.
Of course, the crane track should also be laid according to the consignment and model of the crane, so that different types of tracks can be selected for layings, such as light rail and heavy rail. The use of rail pressing plates improves the safety and stability of rail operation, which is of great significance to the operation of cranes.
Welding connection, rigid connection, and flexible connection can be used between the crane rail clips and the rail, and different types of rail pressers can be used respectively.
Light-duty cranes can be welded and connected by pressing plates with a simple structure. This kind of installation is simple and low in cost, but the load is small.
Rigid connection is the direct connection and contact between the rail press cover and the rail. Traditional WJK, SWJK, HWJK type rail presses mostly use this connection method. At the same time, when used in high-temperature environments such as coking plants, rigid connection rails are also required. device.
The flexible connection is that only the rubber pressure tongue is added to the cover plate of the rail presser. Due to the elastic expansion and contraction of the rubber pressure tongue, the vibration generated by the track during driving can be greatly reduced, thereby better ensuring the smooth operation of the crane track. Flexible rail clips are also divided into bolt crane rail fixing clips and welded crane rail fixing clips for cranes with different installation environments and different loads.
