Slewing Bearing The Cleaning
1. Excavation of the rotary bearing of the rig There are intermittent pieces of sound - like crushed crushed stone, Slewing Bearing harsh metal crushed sound, the fault tells you that the slewing bearing has been worn seriously.
2. Excavation of the rotary bearing between the upper and lower ring gap is clearly open, you can simply measure the four points of the rotary bearing, outside the ring gear, Slewing Bearing or the ring gear as a benchmark to determine the gap between the inner and outer ring, Slewing Bearing if more than 2 mm below, Can still adhere to February, more than 3 mm above the bearing facing the edge of collapse.
3. Rotary bearing sealing system and lubrication system is the protection of rotary bearings and maintenance system, 85% of the users did not do this, all the reasons is that the operator, Slewing Bearing especially the driver of their own, resulting in rotary bearing dry consumption. The following picture, the seal has been unable to see, the lubrication is injected after the loss, has been unable to return to heaven.
4. Excavation of drilling machine rotary bearing failure can also be seen in the work of the time, Slewing Bearing jitter, vibration or forward and backward, rotary bearing deformation reached a serious level.
5. digging drilling machine rotary bearing turntable bearings and slewing bearings directly stuck, is more users finally had to stop the final results, Slewing Bearing and even the user directly forced to pull the rotary bearing rotation, the results of the tragedy occurred.
1. In the rotation of the bearing when the sound is unknown, Slewing Bearing not quickly filling the grease, but the addition of kerosene, directly from the bearing gap, the seal pulled out, directly around the filling, and positive and negative rotation, cleaning, as far as possible The cleaning. Slewing Bearing At this time the internal groove of the slewing bearing, the ball, the ball will get a slight clean. Wash off the rotating bearing debris, more than anything else.
2. After cleaning the bearings, filling the oil, the concentration, that is, the viscosity is slightly higher, this time, the seal has been lost, sticky little better,Slewing Bearing high adhesion rate.
3. Strengthen the temporary protection, to prevent dust, dust, debris into the bearing channel, Slewing Bearing to ensure that within 2-3 can be reluctant to use.
The turntable bearing is a large bearing capable of carrying on a large load such as large axial load, radial load and overturning moment, such as integrated load, set support, rotation, Slewing Bearing transmission, fixed and so on. Therefore, the installation of the turntable bearings must do a good job of the relevant inspection work, or installation need to pay attention to matters, for this large bearing, Slewing Bearing we must do maintenance, storage and other work, so as to avoid the following damage to the turntable bearing, Resulting in normal use.
Before the installation of the turntable bearing, the main installation of the host to check, requiring the support should have sufficient strength, Slewing Bearing the connection surface should be machined, the surface smooth without debris and burrs. For the machining can not be achieved to achieve the required flatness, you can use the injection of high strength of the special plastic filler, Slewing Bearing to ensure the accuracy of the installation plane and to reduce vibration. The turntable bearing has a quencher zone, which is marked "S" on the end of the ferrule, Slewing Bearing which should be installed in a non-load or non-normal load area (the plug hole is always soft With the Department).
When mounting the turntable bearings, perform radial positioning, tighten the mounting bolts, and check the rotation of the bearings. Tighten the bolt should have sufficient preload, Slewing Bearing the preload should be the bolt material yield limit of 70%. Installation of bolts should be equipped with adjustable leveling washers and the use of spring washers.