Discussion on the Solution of Flat Steel Bar Crane Rail Problem

Discussion on the Solution of Flat Steel Bar Crane Rail Problem

Overhead cranes are high-altitude equipment. Whether they are used as lifting equipment for large-scale equipment maintenance or as a key equipment in the production process, they must have matching flat steel bar crane rail. In many years of management and maintenance of these special equipments, some problems will occur during the operation of the existing rails. The rails and bridge crane wheels are heavily worn. The rail gnawing is frequent. The frequency of electrical faults associated with it is high.

The existing overhead flat steel bar crane rails are connected by a plurality of rails connecting plates, which are determined by the production process, transportation and installation of the flat steel bar crane rail. When the flat steel bar crane rails are connected, there must be a rail joint. Under the action of the equipment and the thermal expansion and contraction caused by the temperature difference, the rail joints gradually become larger and larger, so that the bridge crane wheels roll at the rail joints and crane wheel will strike the flat steel bar crane rails. The faster the speed, the greater the impact force. As a result of the impact, the bridge crane wheel and the flat steel bar crane rail will be severely damaged. According to Newton’s third theorem, the principle of force and reaction force, the bridge crane will behave as a whole when it hits, causing the phenomenon of rail gnawing or causing more serious effects. The falling off of the flat steel bar crane rail of overall equipment will occur, causing equipment and personal accidents. Due to the great impact force, it will bring a great negative number to the operation of the equipment. Correspondingly, it will lead to the electrical circuit, electrical components and motor of the tube being affected by the instantaneous high current. Due to frequent frequency, it will lead to frequent line faults.

Overhead cranes are special equipment. Overhead cranes are the key equipment in the production process. Once they fail, they will affect the production and economic benefits of the entire company. Because the rail joints cause vibrations in the operation of the equipment, the driver is disadvantaged in terms of operation and physical health. Therefore, it is urgent to eliminate the vibration of the crane. The key to handling the flat steel bar crane rail problem is to deal with the rail joint. If the 65 m is an integral rail and the rail joints at both ends are between 1 mm and 5 mm gap, the deformation caused by the temperature difference can be avoided. Therefore, the method of processing the rail seam is as follows.

We can cast the whole flat steel bar crane rail, machine it into a V-shape between the two connected rails, make a formwork in the part, then melt the ingot with the same material as the rail, cast the formwork, remove the formwork after cooling, repaire and finish, keep with the rail to make the shape consistent and integrated. Its characteristics are excellent, but the cost is high, and the labor intensity of the workers during construction is high. With welding treatment, the welding method is adopted for the newly installed rails, the connected rails are directly welded, and after trimming, the rail connecting plates are connected to make them integrated. For the existing flat steel bar crane rail with rail gap, the steel plate with the same material as the steel rail is embedded in the rail joint, and then welded, trimmed and integrated by a suitable welding process, which is characterized by good effect, low cost and low construction labor strength. The steel plate is embedded, and a plurality of processed steel plates are embedded in the existing rail joints, and then clamped on both sides of the rail joint. Its rail seam is always maintained between 1mm and 5mm, which is characterized by general effect, low cost, extremely low construction labor intensity, but regular inspection, repairment and adjustment is quite necessary.