Slewing bearing bulk material mechanical installation of the soft-band

　Slewing bearing slewing bearing device includes a variety of large bearings, such as Rotary Raceway. Its role is to support a heavier body rotating around a center.

　　Slewing bearing raceway devices generally require heat treatment processing, the usual process is: → rough forging quenching and tempering treatment → → → finishing rolling pavement surface flame quenching → pavement roller grinding processes. One roll of pavement surface flame quenching with a soft form. The so-called soft belt is the region without heat treatment. With the formation of soft heat treatment process is necessary. In the final heat treatment process as a result of the slewing ring raceway diameter of a circle larger than would normally be using the flame surface hardening, through the use of acetylene heating needs of the hardened surface and then adding water cooling, this process is completed in a row. Flame spray gun and water heating is installed together, along the workpiece at the same time to do a round circular motion. When the campaign to close to 360 degrees an immediate cessation of heating and water. That is, the circular water heating and no overlap region. Heating and water if there is a round region of overlap (in the round of heat treatment on the perspective of more than 360 degrees) will have a crack workpiece. Without heat treatment to the region along the cutting width of 15 mm in general. 15 mm of the slewing ring in the region was known as the soft band. Often in English as a Soft Zone. Normal circumstances, the existence of manufacturing in the workpiece marked the location of soft steel with the words "S" word to describe the specific location of the soft zone. Imported or domestic products generally have a formal marker of this is very important.

　　Slewing bearing device because there is the inevitability of the soft zone, which requires the use and selection of slewing ring device installed on the user to a reasonable position with its soft, in order to enhance the service life of bearings. General principle is to try to install the software with changes in the course of the soft load bearing compression with the smallest position. Rotary devices are usually soft with the installation of the ring in the pitching rotation in the vertical projection line of the location, such as shipping or Stacker Rotary device with the ring to install soft in the center line perpendicular to the cantilever rotary cut-off centers are located at , that is, standing on the face of the rotary center of the left or the right side of the cantilever of the 90-degree position. Mechanical design of the usual soft-band does not exist in this location slewing ring roller bearing device of the greatest state. Rotary device with the next ring of soft according to the installation of equipment and turn the focus to determine the scope of the perspective. If the angle of rotation around 100 degrees, turning over some of the greatest center of gravity location in the front, it is proposed to bring under the soft ring installed in the rear, that is, the location of 180 degrees. If the rotating part of the center of gravity changes over the location in the same position before and after, you can install any software under the ring with the point of view of the location.。

　　With the installation of the soft nature of the position requirements will be is to increase the life span of bearings, from both users and manufacturers in terms of installation or a reasonable upper and lower slewing ring of the location of the soft band is better. Therefore, as a manufacturer of slewing bearing markings should be accurate slewing ring with a soft position, as a manufacturer and installer should be installed in accordance with the needs of a reasonable slewing ring with the location of the soft.