A kind of wear-resistant floating aluminum alloy bearing seat and preparation method

Abstract

The invention provides an anti-abrasion floating aluminum alloy bearing pedestal which comprises a bearing pedestal which is in clearance fit with a gear hole, wherein two symmetric apertures are poured in the bearing pedestal; the whole bearing pedestal is 8-shaped; matched composite linings are arranged on the apertures; a 3-shaped sealing ring slot is arranged in one end face of the bearing pedestal in a sunken manner; an unloading slot is arranged in the other end face of the bearing pedestal. Due to the design of the unloading slot, a phenomenon of oil trapping during the meshing of a gear can be reduced; furthermore, the unloading slot can be used for lubricating the composite linings, so that the abrasion degree is reduced; moreover, due to the design of the end face sealing ring slot, oil in a certain region on the end face of the bearing pedestal can be pressed to push the aluminum alloy bearing pedestal to get close to the end face of the gear, and leakage of the oil pressing end face is prevented; due to an aluminum alloy material for making proportional materials and a technology and a manufacturing technology, the anti-abrasion floating aluminum alloy bearing pedestal is high in abrasion resistance and high in intensity.

Description

technical field [0001] The invention relates to a floating aluminum alloy bearing seat and a preparation method thereof, in particular to a wear-resistant floating aluminum alloy bearing seat used in a gear type oil pump and a preparation method thereof. Background technique [0002] Floating bearing housings are generally used in gear oil pumps. At present, there are mainly two kinds of aluminum alloy materials and bimetal materials. Aluminum alloy materials are mainly based on pure aluminum, adding some elements such as copper and silicon, and the hardness is about HB55. The main problem is that it is relatively easy to be worn and rubbed to generate a lot of heat, resulting in product deformation and reduced use function; bimetallic materials are Using steel plate as the base material, metal powder such as copper powder is sintered on the friction surface to play the role of wear resistance, but there are also defects such as wear resistance and easy deformation. Conten...

AI Technical Summary

Problems solved by technology

Aluminum alloy materials are mainly based on pure aluminum, adding some elements such as copper and silicon, and the hardness is about HB55. The main problem is that it is relatively easy to be worn and rubbed to generate a lot of heat, resulting in product deformation and reduced use function; bimetallic materials are Using steel plate as the basic material, metal powder such as copper powder is sintered on the friction surface to play the role of wear resistance, but there are also defects such as wear resistance and easy deformation

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