What is the lubrication method for slewing drive

Slewing drive is a full circle rotary reduction transmission mechanism that integrates a driving power source. It has been widely used in many engineering machinery and other fields. However, if you want to have a good user experience and long service life in these fields, in addition to requiring good quality of the slewing drive itself, you also need to do daily maintenance of the bearings, such as lubrication of the slewing drive, Next, editor Na'en will introduce the lubrication methods and precautions for slewing drive, hoping to be helpful to everyone.

Features of lubrication methods and steps for slewing drive

1. Replace the lubricating oil for the slewing drive

(1) Remove the access cover located under the turntable drive device.

(2) Remove the oil drain pipe from the holder on the upper frame and face the hose end towards the container.

(3) Use a universal joint with a sleeve extension to loosen the drain valve in the hole. Drain the oil into a suitable container.

(4) Tighten the drain valve. Hang the oil drain pipe on the holder, ensuring that the hose end is facing upwards.

(5) Remove the oil dipstick.

(6) Fill a certain amount of oil through the dipstick tube.

(7) Maintain the oil level between the top of the dipstick and the dipstick mark.

2. Check the lubricating oil level of the slewing drive

(1) The oil dipstick for the lubricating oil of the rotary table drive device is located on the rotary table device behind the boom base, and the oil dipstick is taken out.

(2) Check the oil dipstick. Maintain the oil level between the top of the dipstick and the dipstick mark. If necessary, add oil through the dipstick tube.

(3) Insert the oil dipstick.

3. Lubricating the slewing bearing gear

(1) Remove the access cover located near the boom base. Check the lubricating grease.

(2) Remove the bolts, washers, lower cover, and gasket.

(3) Check the gasket. If there is obvious damage, the gasket should be replaced. Check the lubricating grease level. The lubricating grease should be evenly distributed at the bottom of the groove.

(4) Check the lubricating grease for contamination and discoloration.

(5) If the lubricating grease is contaminated or discolored due to water. The lubricating grease should be replaced. Remove the bolts, washers, covers, and gaskets to drain the water.

(6) Lift the starting arm and rotate the upper structure 1/4 turn.

(7) Pause for a moment every 1/4 revolutions before proceeding with the rotation work, ensuring that the lubricating oil in the slewing bearing can be evenly distributed on the surface of the slewing bearing gear.

Features of Lubrication precautions for slewing drive

1. Lubricating grease replacement

(1) When replacing with new grease, the waste lubricating grease should be removed first and the components cleaned thoroughly. When adding lubricating grease, the waste lubricating grease should be squeezed out until new lubricating grease is seen at the grease outlet.

(2) Pay attention to the replacement time. If the temperature difference between winter and summer in the environment where the equipment is located varies significantly, using winter grease in summer or vice versa will have the opposite effect. In addition, the replacement time of lubricating grease should be determined based on the specific usage situation, ensuring reliable lubrication without causing grease waves.

2、 Lubrication characteristics of slewing drive

1. Lubricating grease replacement

(1) When replacing with new grease, the waste lubricating grease should be removed first and the components cleaned thoroughly. When adding lubricating grease, the waste lubricating grease should be squeezed out until new lubricating grease is seen at the grease outlet.

(2) Pay attention to the replacement time. If the temperature difference between winter and summer in the environment where the equipment is located varies significantly, using winter grease in summer or vice versa will have the opposite effect. In addition, the replacement time of lubricating grease should be determined based on the specific usage situation, ensuring reliable lubrication without causing waste of grease.

(3) Pay attention to the management of the lubricating grease filling process. Before receiving and adding lubricating grease, strict attention should be paid to the cleanliness of containers and tools. The grease supply port on the equipment should be wiped clean in advance to prevent the mixing of mechanical impurities, dust, and sand particles. Attention should also be paid to avoiding the cross use of grease containers and tools, otherwise it will have adverse effects on the grease, such as a decrease in dripping point, an increase in cone penetration, and a decrease in mechanical stability.

2. Dosage control

When lubricating the slewing drive, it is necessary to pay attention to the amount of lubricating grease. Adding too much lubricating grease can cause poor operation of the bearing and an increase in bearing temperature. Similarly, if the amount of lubricating grease used in the bearing is too small, it can also cause problems such as bearing discoloration and wear. Therefore, it is advisable to pay more attention to the appropriate amount when using it.

3. Temperature control

The lubrication of bearings relies on the three-dimensional fiber network structure inside the lubricating grease, which precipitates lubricating oil when it is pulled apart under shear, forming a layer of lubricating film on the rotating components, bearing seats, and bearing races of the bearings to provide lubrication. The use temperature of ordinary bearing grease is 60-120 degrees, and the temperature limit of high-temperature bearing grease can reach 300 degrees.

Applications of slewing drives

The common applications are generally the full circle rotation structure of engineering and construction machinery, as well as solar, wind, and various long-term automatic tracking machinery. Due to its compact structure and short transmission chain, the rotation drive is easier to achieve high accuracy and digital control, so it is also widely used in the field of industrial robots.

Slewing drives supplier

LZTC slewing drive accuracy covers four levels of Po, P6, P5 and P4. implementation standards: universal bearing GB/T307, slewing drive JB/2300, ship industry CB/T3669, machinery industry JB/T10471, wind turbine bearing B/T10705. The SO9001 quality system certification has been passed in 2003.

LZTC Slewing Drive, providing a series of services such as research and development, design, production, and sales of  Slewing Drive products.If you are looking for slewing drive supplier, please contact us for the latest quotation.