Sub-block self-center-regulating water-lubricating thrust bearing

Abstract

The invention relates to a novel sub-block self-center-regulating water-lubricating thrust bearing. The thrust bearing mainly comprises a floating block, positioning screws, sector-like blocks, a base body and a regulating ring. The sub-block self-center-regulating water-lubricating thrust bearing is mainly characterized in that a sub-block center-regulating bearing is adopted by a working surface, the number of sub-blocks is determined according to the size of the inner diameter of a cylinder, and the floating block of the sub-block center-regulating bearing is made of silicon carbide materials, is matched with a stainless steel disc for enhancing abrasion resistance and is bonded with the sector-like blocks with special glue. According to the structure, the sub-block self-center-regulating water-lubricating thrust bearing is provided with two active fulcrums, one active fulcrum is positioned in the middle of the lower part of the sector-like block, the other active fulcrum is positioned on the upper part of the regulating ring, and the active fulcrums have an automatic center regulating function in a working state. The upper part of the regulating ring is provided with a large spherical contact surface, and the lower part of the regulating ring is also provided with a large contact surface, so that the bearing capacity of the regulating ring is large. The thrust bearing has the beneficial effects of ensuring stable operation of a high lift pump matched with a large power motor in application or application according to special requirements, and widening the application range of a submerged motor for wells. The thrust bearing also has the advantages of simple structure, high precision, convenience in assembly and disassembly, safety, reliability and durability.

Description

Technical field [0001] The invention relates to a block self-aligning water lubricated thrust bearing of a well-used submersible motor. Background technique [0002] The cavity of the water-filled well submersible motor is filled with clean water or anti-rust lubricating fluid, and the lower end of the shaft is equipped with a water-lubricated thrust bearing to bear the weight of the rotor and the axial thrust of the water pump when the motor is running. Water-lubricated thrust bearings use water with very low viscosity as the lubricating coolant, and the bearing surface of the bearing is in a state of boundary lubrication. Bearing materials are required to have good self-lubricating properties, friction resistance, low friction coefficient, high bearing capacity, stable operation, and good corrosion resistance. Especially under the conditions of high-power motor or special requirements, the original structure is difficult to meet the above requirements. Contents of the i...

AI Technical Summary

Problems solved by technology

Especially under the conditions of high-power motors or special requirements, the original structure is difficult to meet the above requirements

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