Inlay combined type large self-lubricating support bearing

Abstract

The invention discloses an inlay combined type large self-lubricating support bearing, which has a simple structure, low cost and reliable quality and is convenient to process. The inlay combined type large self-lubricating support bearing is provided with an arc tilting fillet (1), wherein the inner surface of the arc tilting fillet (1) is provided with a plurality of steel backing metal plastic composite bearing pads (2) which are spliced along the circumferential direction and of which the widths are equal to that of the arc tilting fillet (1); the inner surface of the arc tilting fillet (1) is provided with axial spacing slots (3); the surfaces corresponding to the steel backing metal plastic composite bearing pads (2) are provided with bosses (4) matched with the axial spacing slots (3); the tile surfaces (5) of the steel backing metal plastic composite bearing pads (4) have an integral structure; joint surfaces of the tile surfaces (5) and steel substrates (6) are provided with radial arc surfaces, thrust end faces and transition arc surfaces; a screw hole (7) is radically processed on the steel substrate (6) of each steel backing metal plastic composite bearing pad; and a bolt (8) passes through the arc tilting fillet (1) and is connected with the screw hole (7).

Description

Technical field: [0001] The invention relates to a self-lubricating support bearing, in particular to a mosaic combined large-scale self-lubricating support bearing with simple structure, convenient processing, low cost and reliable quality. Background technique: [0002] Ball mills are widely used in industries such as cement, silicate products, new building materials, refractory materials, ferrous and non-ferrous metal beneficiation, and glass ceramics for dry or wet grinding of various ores and other grindable materials. The bearing capacity requirements are relatively high. In the past, most of them were rolling support bearings and Babbitt alloy tile sliding bearings, which had different shortcomings. At present, there are self-lubricating support bearings for ball mills that are superior to previous bearings, which have the advantages of small friction coefficient, low wear rate, long life, no high-pressure oil jacking device, and energy saving (5-10%). [0003] The u...

AI Technical Summary

Problems solved by technology

[0003] The utility model patent with the Chinese patent number ZL200620092553.5 discloses a support bearing for a ball mill. Its structure is an arc-shaped steel tile base (seat), and its inner surface has a radial arc surface, a thrust end surface and a transitional arc surface. , a steel substrate is connected to the radial arc surface of the arc-shaped steel tile base and the two axial thrust end surfaces, the steel substrate has a spiral metal wire and a copper alloy powder layer, and the spiral metal wire and copper alloy powder layer are on It is filled with a plastic alloy layer; at the same time, its manufacturing method is disclosed, including laying a spiral metal wire on a steel substrate and spreading alloy powder, and sintering; compounding a plastic alloy layer on a spiral metal wire and a copper alloy powder layer to form a Steel-backed metal-plastic composite bearings, the steel-backed metal-plastic composite bearings are made into a shape that matches the friction surface of the arc-shaped steel tile base and the axial end surfaces, and are respectively connected to the friction surface and axial end surfaces of the arc-shaped steel tile base. However, there are disadvantages such as complex process, poor integrity and high manufacturing cost.

However, because the existing production method is to press the flat composite plate into an integral tile surface structure and can only produce tile surfaces with a length less than 1 meter, it is impossible to manufacture large-scale (ball mill drum diameter greater than 2.1 meters) self-lubricating support bearings

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