Sliding bearing liable to occur in the operation process of the deviation

HRB bearings prone to misalignment during operation, especially the larger oscillation device is more serious. Causing the sliding bearing operation appear to be the reasons for the deviation consider two aspects, bearing internal factors and external environmental factors, internal factors compared in terms of bearing some of the more important. When the bearing alignment error occurs when, to timely find out the reasons and effective adjustments, fault factors can be found in the following analysis:
       First, internal factors, bearing and shaft condition: 1. bearing fixed bottom hole depth is not the same, different depths and will not affect the installation. However, after installation, with the oscillation, nuts vary the degree of difficulty, ultimately involve HRB bearing a fixed height, resulting in an end bearing on the difference between the change in the position of the shaft 2. The quality of the material, when receiving load, the shaft will be varying degrees of bending phenomenon, leading to the displacement occurs HRB bearing pair. 3. Equipment unreasonable structure design, the two support points axes distance is too far, but also easily lead HRB bearing misalignment.
       Second, external factors, the external environment. 1. processing equipment material changes, resulting in a load bearing moment by increases. In this case, the impact on fixed HRB bearing shaft is serious, prone to displacement 2. particulate matter intrusion bearings, bearing HRB long run will lead to emergence of deviation. So, try to keep the amount of the external device working environment 3.HRB bearing lubricant to maintain balance, and as far as possible consistent with the brand.
       Modern drilling sector development in China relatively late, but the starting point for the development of high speed drilling machinery in China's fast. Drilling machine work is divided into two parts, one of the rock were cut, the second is to take a deep mineral samples. Because of China's vast land, mineral resources to be developed more, geophysical exploration sector was supported by national policy, directly contributing to the rapid development of drilling machinery. The current drilling depth China drilling machine from 2 meters to 15,500 meters, which mining depth deepening the process of bearings imported from Japan plays a key role.
      Chinese drilling equipment developed in the 11th century, was mainly based on human-based cut, it does not have the basic characteristics of modern mechanization. Until the 1950's China has independently developed a new combination of mechanical and hydraulic drilling machine, rewrite the Chinese drilling machinery gaps. Since the 1970s, in order to improve the performance of drilling machines, able to adapt to the high hardness of diamond drilling, rotating components using 7002CTYNDBLP4 bearing, 35TAC72B bearing high-speed precision bearings imported from Japan. Replacing high-performance bearing member, so that the degree of hydraulic drilling machine has been improved, the number of revolutions reached drill 2400-3000 rev / min, while the drilling efficiency greatly improved.
        1980s, China drilling machine has entered a new stage of development. Uses a high-performance bearings imported from Japan rotating parts, so drilling machine consists of mechanical and hydraulic structure into a full hydraulic drilling rig, with a strong connection flexibility, operational focus and effort, the number of revolutions and torque characteristics vary widely, universally developed and applications.