High-speed bearings with oil mist channels in the outer ring

Abstract

The invention discloses a high-speed bearing with an oil mist channel in the outer ring, comprising an outer ring, an inner ring, balls, a first pressure plate, a second pressure plate and an oil tank, the outer ring is located outside the inner ring, and between the inner and outer rings Balls are set, the first pressure plate and the second pressure plate are installed on both ends of the outer ring through fasteners, the outer surface of the outer ring is provided with oil mist grooves, and two sets of through holes are opened on the first pressure plate to connect to the outer rings in contact with it. The central hole and the oil mist groove on the end face of the ring, the first pressure plate is connected to the oil tank, and the first pressure plate and the second pressure plate are respectively provided with oil seals on the inner cylindrical surface adjacent to the inner ring. The inner ring includes a ring body and fan blades arranged on the outer surface of the ring, and the fan blades are evenly distributed around the circumference. There is an atomizer in the oil tank; the fan blade and the ring body are connected separately and locked by fasteners. The fan blade includes blades, blade roots and root plates. The blade roots are inserted into the outer surface of the ring radially, and the root plates are in conflict. The outer surface of the ring, the root plate and the ring body are locked by 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...

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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

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