Advantages of Rail Elastic Fastening Device in Steel Beam Rail
With the rapid development of social productivity, the speed of capital construction is accelerating, and the traditional frame-type industrial plants with concrete beam-column structure are gradually being replaced by steel structure factories. The lifting and transportation equipment is also becoming larger and more efficient， which has new requirements about crane rail steel square bar installations. The application of the crane rail steel square bar elastic fastening device in the installation of the steel beam rail can effectively reduce the looseness of the rail pressure plate, the deformation of the rail and the fracture caused by the increase of the wheel pressure of the lifting machine and the increase of the operating frequency, and can save the construction cost, which speed up the crane rail steel square bar installation.
At present, the crane rail steel square bar in China generally adopts two kinds of pressure plate fixing methods, namely bolt pressing plate and rail press device. The bolt pressing device is the earliest used and the most widely used. The crane rail steel square bar is fixed by the two side pressing plates, and the pressing plate is fixed on the crane beam by bolts. Although this method has its advantages in the installation of concrete crane beam rails, it has great defects in the installation of crane rail steel square bar. The inclined iron block self-locking type rail press is an improved type of bolt pressing device. The lower cover plate is welded on the crane beam, and the upper and lower cover plates are connected by T-bolts, and the upper and lower cover plates are fixed by tightening the wedge iron, which solve the problem of drilling holes in steel beams, but there are also some defects.
The rail elastic fastening device is composed of a Z-shaped fastener and an e-shaped elastic strip. The Z-shaped fasteners are welded on the upper wing of the steel crane beam to resist the horizontal force and the rail force of the crane. During welding process, the welding length can be designed as three-sided welding or two-side welding according to the horizontal lateral force of the wheel. Rail elastic fastening devices have the following advantages. The rail spring fastening device is fully elastically connected and can securely fasten the rail in vibration. The e-shaped spring bar and the Z-shaped fastener are spliced, and the inclined bottom surface of the rail is in contact with the pre-stressing stress. This will cause the spring bar to be pressed against the track forever, so that the stress is transmitted to the crane beam through the spring bar. When the crane rail steel square bar is installed, the correct pressing force is automatically generated. Different rail type rail elastic fastening devices have pre-set the corresponding pre-tightening force. There will be no flaking, corrosion or failure, which will prevent the platen from loosening due to the creep of the thread and exempt the maintenance inspectors from a lot of heavy work during use. The rail elastic fastening device consists of two simple components, it is easy to be installed and intuitive to be checked. It’s safe and reliable with long service life. It has the ability to resist longitudinal forces and resist lateral forces, reducing the rail breakage of the rail under the action of ambient temperature forces and the horizontal forces generated by the large wheels during operation. It can also weaken the damage of the crane lateral impact force and the crane rail force on the structure of the rail, the crane beam brake system and the column, thus prolonging the service life of the structure. There is no need to drill holes in the upper beam of the crane beam, which reduces the manufacturing cost of the beam and improves the manufacturing speed of the crane beam. The waveform ratio of the upper wing increases, and the cross-section strength of the beam is correspondingly increased. Through the positioning of the fastener, the accuracy of the rail installation (span, straightness) can be ensured, and the offset of the rail to the center of the crane beam can be reduced. The utility model effectively solves the phenomenon that the serpentine bending, improve the service life of the track and wheels, and ensure the smooth and safe operation of the crane. The e-shaped spring bar can be freely disassembled and reused, which can shorten the construction period of the track replacement and save construction costs. The application of the rail elastic fastening device can effectively improve the efficiency of engineering construction, reduce equipment accidents and daily inspection and maintenance workload, reduce the overall cost, and is highly praised by the construction unit and the use manufacturer in terms of practical and economic effects.
With the rapid development of social productivity, the speed of capital construction is accelerating, and the traditional frame-type industrial plants with concrete beam-column structure are gradually being replaced by steel structure factories. The lifting and transportation equipment is also becoming larger and more efficient， which has new requirements about crane rail steel square bar installations. The application of the crane rail steel square bar elastic fastening device in the installation of the steel beam rail can effectively reduce the looseness of the rail pressure plate, the deformation of the rail and the fracture caused by the increase of the wheel pressure of the lifting machine and the increase of the operating frequency, and can save the construction cost, which speed up the crane rail steel square bar installation.
At present, the crane rail steel square bar in China generally adopts two kinds of pressure plate fixing methods, namely bolt pressing plate and rail press device. The bolt pressing device is the earliest used and the most widely used. The crane rail steel square bar is fixed by the two side pressing plates, and the pressing plate is fixed on the crane beam by bolts. Although this method has its advantages in the installation of concrete crane beam rails, it has great defects in the installation of crane rail steel square bar. The inclined iron block self-locking type rail press is an improved type of bolt pressing device. The lower cover plate is welded on the crane beam, and the upper and lower cover plates are connected by T-bolts, and the upper and lower cover plates are fixed by tightening the wedge iron, which solve the problem of drilling holes in steel beams, but there are also some defects.
The rail elastic fastening device is composed of a Z-shaped fastener and an e-shaped elastic strip. The Z-shaped fasteners are welded on the upper wing of the steel crane beam to resist the horizontal force and the rail force of the crane. During welding process, the welding length can be designed as three-sided welding or two-side welding according to the horizontal lateral force of the wheel. Rail elastic fastening devices have the following advantages. The rail spring fastening device is fully elastically connected and can securely fasten the rail in vibration. The e-shaped spring bar and the Z-shaped fastener are spliced, and the inclined bottom surface of the rail is in contact with the pre-stressing stress. This will cause the spring bar to be pressed against the track forever, so that the stress is transmitted to the crane beam through the spring bar. When the crane rail steel square bar is installed, the correct pressing force is automatically generated. Different rail type rail elastic fastening devices have pre-set the corresponding pre-tightening force. There will be no flaking, corrosion or failure, which will prevent the platen from loosening due to the creep of the thread and exempt the maintenance inspectors from a lot of heavy work during use. The rail elastic fastening device consists of two simple components, it is easy to be installed and intuitive to be checked. It’s safe and reliable with long service life. It has the ability to resist longitudinal forces and resist lateral forces, reducing the rail breakage of the rail under the action of ambient temperature forces and the horizontal forces generated by the large wheels during operation. It can also weaken the damage of the crane lateral impact force and the crane rail force on the structure of the rail, the crane beam brake system and the column, thus prolonging the service life of the structure. There is no need to drill holes in the upper beam of the crane beam, which reduces the manufacturing cost of the beam and improves the manufacturing speed of the crane beam. The waveform ratio of the upper wing increases, and the cross-section strength of the beam is correspondingly increased. Through the positioning of the fastener, the accuracy of the rail installation (span, straightness) can be ensured, and the offset of the rail to the center of the crane beam can be reduced. The utility model effectively solves the phenomenon that the serpentine bending, improve the service life of the track and wheels, and ensure the smooth and safe operation of the crane. The e-shaped spring bar can be freely disassembled and reused, which can shorten the construction period of the track replacement and save construction costs. The application of the rail elastic fastening device can effectively improve the efficiency of engineering construction, reduce equipment accidents and daily inspection and maintenance workload, reduce the overall cost, and is highly praised by the construction unit and the use manufacturer in terms of practical and economic effects.
Comments
Post a Comment