High-speed bearing with oil mist passageway on outer ring

Abstract

The invention discloses a high-speed bearing with an oil mist passageway on an outer ring. The high-speed bearing comprises the outer ring, an inner ring, balls, a first pressing plate, a second pressing plate and an oil tank. The outer ring is located outside the inner ring. The balls are arranged between the inner ring and the outer ring. The first pressing plate and the second pressing plate are installed at the two ends of the outer ring through fasteners. An oil mist groove is formed in the outer surface of the outer ring. Two sets of through holes formed in the first pressing plate are connected with a center hole in the end face of the outer ring and the oil mist groove correspondingly, and the center hole and the oil mist groove make contact with the first pressing plate. The firstpressing plate is connected to the oil tank. Oil seals are arranged on the inner surface cylindrical faces, adjacent to the inner ring, of the first pressing plate and the second pressing plate correspondingly. The inner ring comprises a ring body and blades arranged on the outer surface of the ring body. The blades are evenly distributed circumferentially. An atomizer is arranged in the oil tank. The fan blades and the ring body are connected in a split manner and are locked through fasteners. Each fan blade comprises a blade, a blade root and a root plate. The root plates are inserted in the outer surface of the ring body in the radial direction. The root plates abut against the outer surface of the ring body. The root plates and the ring body are locked through fasteners.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a high-speed bearing with an oil mist channel on the outer ring. Background technique [0002] Bearings are used extensively in machines to provide rotational support for rotating shafts so that they rotate smoothly with low resistance. Bearings have a wide range of rotation speeds, and when used in high-speed applications, the rotation speed can reach tens of thousands of revolutions. [0003] In the prior art, the lubrication of bearings is usually oil lubrication or grease lubrication. Due to problems such as resistance and heat, the application of grease lubrication is limited in high-speed working conditions. For oil lubrication, high-speed rotating balls will crowd out the lubrication on the rolling friction surface If the oil is in an ordinary liquid state, it will cause a certain resistance due to the liquid tension. Although this resistance is small, it will increase with the in...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the lubrication of bearings is usually oil lubrication or grease lubrication. Due to problems such as resistance and heat, the application of grease lubrication is limited in high-speed working conditions. For oil lubrication, high-speed rotating balls will crowd out the lubrication on the rolling friction surface If the oil is in an ordinary liquid state, it will cause a certain resistance due to the liquid tension. Although this resistance is small, it will increase with the increase of the bearing running speed. Moreover, the unevenness of the oil film on the surface of the ball will increase the rolling resistance. Jitter, thereby aggravating the vibration of the bearing, this factor is superimposed on the factor of vibration caused by bearing clearance

[0004] Traditionally, the inner and outer rings of the bearing are integrated. When the balls are inserted into the rolling groove, the inner and outer rings need to be manually moved to make them eccentric, and then the balls are inserted from the larger groove width. After the balls are installed, the balls are equidistantly distributed and mounted on the cage. In this installation method, the end face holes of the outer ring need to be made larger, and the number of balls that can be inserted is limited, because the balls are inserted into the gaps. As more balls are inserted, the eccentricity of the inner and outer rings becomes smaller and smaller, and it becomes more difficult to insert the balls later. The supporting force of the balls on the inner and outer rings is not completely uniform on the circumference. The fewer the number of balls, the more uneven the supporting force

[0005] When the bearing is installed and used, it is often necessary to make a corresponding bearing gland or seam ring, etc., for locking and positioning on the casing, and the degree of integration is not high

Images