Self-aligning thrust bearing for submerged pump

Abstract

The invention discloses a self-aligning thrust bearing for a submerged pump, which comprises a disc-shaped pedestal and at least two thrust bearing blocks uniformly distributed on the circumference of the pedestal; the thrust bearing bocks are composed of bases which are made of metal materials and friction sheets made of high molecular materials; at least one concave waterway is arranged on the surfaces of the friction sheets; a boss is arranged in the middles of the bottom surfaces of the bases; the boss is contacted with the pedestal; and the thrust bearing blocks are provided with clamping mechanisms to fix the thrust bearing blocks on the pedestal. The self-aligning thrust bearing aims at turning a fixing plane type thrust bearing into a self-aligning thrust bearing by changing the structure form of the original design; owing to the design of the boss at the bottom of the thrust bearing, the thrust bearing blocks are inclined to modify the matching precision, so as to remarkably increases the contact area of the thrust bearing blocks and reduce the pressure; the multiple movable friction blocks are synchronously abraded, thereby greatly prolonging the service life of the submerged electric pump. The processing part is simple and easy to realize and is comparatively low in cost; and with application of the self-aligning thrust bearing, the service life of the product is prolonged.

Description

technical field [0001] The invention belongs to the field of machinery and relates to a self-aligning thrust bearing for a submersible pump. [0002] Background technique [0003] The submersible pump is a mechanical device that rotates at high speed. The working type is usually vertical, and the weight of the motor and pump is all carried by the thrust bearing. Due to the uncertainty of manufacturing errors and assembly errors, the center of gravity and the axis cannot overlap, and the thrust bearing cannot fully contact when rotating. If the situation is serious, the contact area is too small, the pressure is high, and the temperature of the contact surface is too high, which will increase the wear of the thrust bearing rapidly and greatly shorten the service life of a pump. [0004] Contents of the invention [0005] In order to overcome the defects and deficiencies of the prior art, the present invention proposes a self-aligning thrust bearing that can prolong the ...

AI Technical Summary

Problems solved by technology

Due to the uncertainty of manufacturing errors and assembly errors, the center of gravity and the axis cannot overlap, and the thrust bearing cannot fully contact when rotating.

If the situation is serious, the contact area is too small, the pressure is high, and the temperature of the contact surface is too high, which will rapidly increase the wear of the thrust bearing and greatly shorten the service life of a pump.

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