SU241829A1 - HYDROSTATIC RADIAL-RESISTANT BEARING - Google Patents

Description

Hydrostatic radial thrust bearings are known, which include a housing, in the bore of which pockets are made, which take up the radial load and are separated by spaced bridges with drainage grooves, and at the end pockets, which take up axial load.

The described hydrostatic radial-proof support, designed primarily for precision machine spindles, differs from the known ones in that the drainage grooves are made through.

This embodiment of the bearing reduces the perimeter of the slots and reduces the consumption of the working liquid.

The drawing shows the described bearing in the transverse and longitudinal sections.

The shaft / with the thrust disks 2 n 3 is located in the housing 4 of the hydrostatic bearing, on the ends of which there are annular (end) pockets 5 and 6, which receive the axial load, and in the bore - pockets 7-10 (radial), which perceive the radial load. On the jumpers between the radial pockets are non-through drainage grooves // - 14, connected to the drain by the grooves 75. Ring pockets 5 and

6 are sealed by external bridges 16 and internal bridges 17. Since the drainage grooves 11-14 are not through, the bridges sealing the bearing pockets in the axial direction form solid bridges (rings) 18.

Drainage grooves between the end pockets 5 and 6, on the one hand, and radial pockets 7-10, on the other hand, are absent. In such a subshipic, the fluid supplied to the pockets under pressure is drained from the annular pockets 5 and 6 only through the outer lintels 16. Due to the absence of draining grooves between the annular and radial pockets, the fluid does not merge through the lintels 17; Pressure in pockets 7–10 also prevents discharge. The curvature of these pockets merges only in the tangential

direction to the drainage canals // - 14. In the axial direction through the jumpers 18, the liquid from the pockets 7-10 is not drained, since the pressure in the pockets 5 and 6 counteracts this. Therefore, in such a bearing

The flow rate of the fluid is significantly, approximately doubled. Since jumpers 18 are solid, internal jumpers 17 are optional on the ends. Therefore, in such a bearing, the friction surface and

Subject invention

Hydrostatic angular contact ball bearings, mainly for precision machine spindles, contain a housing with a cylindrical spindle hole, inside of which are made pockets that accept radial loads, delimited

jumpers with longitudinal drainage grooves, and from the ends - pockets, perceiving axial load, characterized in that, in order to reduce the flow of working fluid, drainage grooves are plugged from the ends, and radial drillings are made in the case, which inform the drainage grooves with its outer surface.

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