Publish Time: 2022-12-09 Origin: Site
As an important basic component of construction machinery, slewing bearings have been widely used in the last ten years with the rapid development of the gas industry. In addition to supporting excavators, tower cranes, car cranes and various cranes, they are also used in light industry. Machinery, metallurgical machinery, medical machinery, industrial robots, tunnel boring machines, stackers and reclaimers, rotary platforms, etc.
What are the inspection steps for slewing bearings?
What is the reason for the abnormal noise caused by the slewing bearing?
What are the characteristics of the materials used in small and medium-sized slewing bearings?
1.Before inspecting the slewing bearing, the operator must place the excavator from the construction site on flat ground. It is best to avoid the dust and sand place. The parking position consists of the front work tool falling to the ground.
2.To avoid safety accidents during the detection process, it is necessary to ensure that there are no obstacles, obstacles and inactive persons around the excavator prior to detection, to ensure that there are no potential safety risks during the detection process. 3.Next, the meter frame can be attached to the lower frame. Note that the measuring point of the watch must be about 20mm away from the rotating seat ring.
4.Before testing, make sure the meter is reset to zero, the handle is fully extended, and the spoon is retracted.
5.During the detection process, lower the spoon to the ground, then support the caterpillar, keep 15-30 cm away from the ground, observe the meter, and record the measured value three times during the process.
The lack of grease in the raceway of the slewing bearing, the uneven grease filling, the poor quality and aging of the grease and the wrong selection of lubricants also cause abnormal noises in the slewing bearing of the coal mine cutting machine. To solve this problem, you only need to use lubricant, add it in time and replace it in time.
Small and medium-sized slewing bearing forgings use all round or square bars as blanks. The grain structure and mechanical properties of the rod are uniform and good, the shape and size are accurate, and the surface quality is good, which is suitable for mass production. As long as the heating temperature and deformation conditions are adequately controlled, forgings with excellent performance can be forged without large forging deformation. Bars are only used for large forgings. The bar is a cast-iron structure with large column-shaped crystals and a loose center. Therefore, the column-shaped crystals need to be broken into fine grains by large plastic deformation, and loose compaction can be obtained to obtain excellent metal structure and excellent mechanical properties.
Due to different fields and different types of slewing bearings, they are widely used in many industries. To meet these growing demands, LYXQL Slewing Bearing Co., Ltd. is committed to increasing the number of slewing bearings and making them more effective, reliable and consistent.
LYXQL Slewing Bearing Co., Ltd. founded in 2003, is the leader manufacturer of large size slewing bearings in China. As one of the national key high-tech enterprises, LYXQL became the GEM listing company successfully on July 13, 2020 (stock code 300850).