CN210919802U

CN210919802U - Thrust bearing

Info

Publication number: CN210919802U
Application number: CN201921599234.7U
Authority: CN
Inventors: 王立博; 李焕军
Original assignee: Shenyang Borui Turbine Technical Service Co Ltd
Current assignee: Shenyang Borui Turbine Technical Service Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-07-03
Anticipated expiration: 2029-09-25

Abstract

The utility model belongs to the technical field of sliding bearing manufacturing, and relates to a thrust bearing; comprises a tile frame, an inner thrust tile, an outer thrust tile, a support tile block, an oil nozzle and a screw with a hole; the inner thrust pad and the outer thrust pad are respectively arranged on two sides of the tile frame, and the inner thrust pad, the outer thrust pad and the tile frame jointly limit and support the tile blocks; the inner thrust tile, the outer thrust tile and the tile frame are of an upper half structure and a lower half structure, and the upper half structure and the lower half structure are combined together through the tile frame through screws; the bearing bush frame is provided with oil through holes and an annular oil groove, the inner thrust bush block and the outer thrust bush block are provided with inner thrust bush side nozzle holes and outer thrust bush side nozzle holes, and the oil through holes correspond to the inner thrust bush side nozzle holes and the outer thrust bush side nozzle holes in number and are communicated with each other; the oil nozzles are distributed on the supporting tile blocks; the center of the screw with the hole is provided with an oil through hole which is communicated with an annular oil groove and an oil nozzle on the tile frame; the thrust bearing is characterized in that the thrust bearing blocks, the support bearing blocks and the bearing frame are disassembled and combined on the basis of the existing thrust bearing, and each part has replaceability and is convenient to overhaul; the elliptic supporting tile in the supporting and pushing bearing is changed into a tilting tile, and the rotation precision is high.

Description

Thrust bearing

Technical Field

The utility model belongs to the technical field of slide bearing makes, a thrust bearing is related to.

Background

The thrust bearing is a sliding bearing which has both supporting and thrust functions on the shaft, and has the advantages of large axial and radial bearing force, good stability, good vibration resistance, low noise and high rotation precision. The gear assembling type centrifugal compressor is generally applied to the field of gear assembling type centrifugal compressors and steam turbines at present.

The existing thrust bearing is an integral bearing, and the thrust pad, the support pad and the tile frame are of an integral structure. There are problems in that: the integral structure is inconvenient to overhaul, and the whole bearing structure needs to be replaced as long as any one part of the thrust bearing or the support bearing is damaged. The utility model discloses a components of a whole that can function independently structure of tile rack, thrust tile and support tile has simply effectually solved above-mentioned problem.

To solve the problem, the utility model discloses the technical difficult point that exists lies in: 1. after the two side surfaces are both of replaceable screw handle structures, how to ensure the parallelism of the black-gold surfaces at the two sides and the perpendicularity of the black-gold surfaces relative to the inner hole is ensured; 2. how split type structure guarantees that lubricating oil is unobstructed in whole bearing inside, reaches lubricated effect.

Disclosure of Invention

Technical problem to be solved

In order to solve the above problems in the prior art, the utility model provides a thrust bearing, which is based on the existing integral thrust bearing and comprises thrust pads, support pads and a pad frame which are decomposed and combined; planning the lubricating oil path according to the structure again; and the process scheme is changed, and the parallelism of the two thrust surfaces and the perpendicularity of the two thrust surfaces relative to the inner hole are ensured. The rotary precision of the supporting and pushing bearing is high, and the maintenance is convenient.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme is:

a thrust bearing comprises a tile frame 3, an inner thrust tile, an outer thrust tile, a support tile 4, an oil nozzle 5 and a bolt 6 with a hole;

an inner thrust tile and an outer thrust tile are respectively arranged on two sides of the tile frame 3, and the inner thrust tile, the outer thrust tile and the tile frame 3 limit and support the tile blocks 4 together;

the inner thrust tile, the outer thrust tile and the tile frame 3 are of an upper half structure and a lower half structure, and the upper half structure and the lower half structure are combined together through the tile frame 3 through screws;

the bearing bush frame 3 is provided with an oil through hole 3-1 and an annular oil groove 3-2, the inner thrust bush block and the outer thrust bush block are provided with inner thrust bush side nozzle holes 1-4 and outer thrust bush side nozzle holes 2-4, and the oil through hole 3-1 corresponds to the inner thrust bush side nozzle holes 1-4 and the outer thrust bush side nozzle holes 2-4 in number and is communicated with each other; the oil spray nozzles 5 are distributed on the supporting tile 4;

the center of the bolt with the hole 6 is provided with an oil through hole and is communicated with an annular oil groove 3-2 and an oil nozzle 5 on the tile frame 3; the lubricating oil can simultaneously reach the supporting surface b on the supporting pad 4 and the thrust surface a of the inner thrust pad and the outer thrust pad through the pad holder 3.

In the technical scheme, the inner thrust pads and the outer thrust pads on two sides are mounted on the tile frame 3 through screws 8;

in the technical scheme, the inner thrust pad and the outer thrust pad are replaceable tilting pads.

In the technical scheme, the supporting pad 4 is a replaceable tilting pad.

(III) advantageous effects

The utility model has the advantages that: on the basis of the existing thrust bearing, the thrust pad, the support pad and the pad frame are decomposed and combined, and each part has exchangeability and is convenient to overhaul; the elliptic supporting tile in the supporting and pushing bearing is changed into a tilting tile, and the rotation precision is high.

To sum up, the utility model has the advantages of the gyration precision is high, overhauls the convenience.

Drawings

FIG. 1 is a sectional view of the thrust bearing shown in FIG. 3A-A according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view B-B of FIG. 1;

FIG. 3 is a view from the P direction in FIG. 1;

FIG. 4 is a view in the direction Q of FIG. 1;

[ description of reference ]

1-inner thrust tile, 2-outer thrust tile, 3-tile frame, 4-support tile, 5-oil nozzle, 6-screw with hole, 7-tile stable nail, 8-screw, a-thrust surface and b-support surface

Wherein, 1-1 is an inner thrust tile basal body, 1-2 is an inner thrust tile ebony, 1-3 is an inner thrust tile supporting ebony, 1-4 is an inner thrust tile side nozzle hole, 2-1 is an outer thrust tile basal body, 2-2 is an outer thrust tile ebony, 2-3 is an outer thrust tile supporting ebony, 2-4 is an outer thrust tile side nozzle hole, 3-1 is an oil through hole, and 3-2 is an annular oil groove.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings 1 to 3.

Examples

Referring to fig. 1 to 3, the present embodiment provides a thrust bearing, which mainly includes: the thrust tile 1, outer thrust tile 2, tile frame 3, support tile 4, fuel sprayer 5, foraminiferous screw 6, the steady nail of tile 7, screw 8.

Referring to fig. 1-3, the inner thrust pad 1 is composed of an inner thrust pad base body 1-1, an inner thrust pad wujin 1-2 and an inner thrust pad support wujin 1-3, and an inner thrust pad side nozzle opening 1-4 is arranged outside the inner thrust pad wujin 1-2; the outer thrust tile 2 consists of a 2-1 outer thrust tile base body, 2-2 outer thrust tile black gold and 2-3 outer thrust tile supporting black gold, and an outer thrust tile side nozzle opening 2-4 (the structure is the same as that of the inner thrust tile side nozzle opening 1-4) is arranged on the outer side of the 2-2 outer thrust tile black gold; the tile frame 3 comprises an oil through hole 3-1 and an annular oil groove 3-2; the oil through holes 3-1 and the inner thrust tile side nozzle openings 1-4 are corresponding in number and are communicated with each other; the center of the bolt 6 with the hole is provided with an oil through hole which is communicated with an annular oil groove 3-2 and an oil nozzle 5 on the tile frame 3.

Further, the inner thrust pad 1 and the outer thrust pad 2 are respectively mounted on two sides of the tile frame 3 by a plurality of screws 6;

further, the inner thrust pad 1, the outer thrust pad 2 and the tile rack 3 limit and support the pad 4 together.

When the thrust bearing works, a part of lubricating oil enters an oil through hole 3-1 on the tile frame 3 through an annular oil groove 3-2 on the tile frame 3 to respectively reach an inner thrust tile side nozzle opening 1-4 and an outer thrust tile side nozzle opening 2-4 at two sides, and the inner thrust tile 1 and the outer thrust tile 2 are lubricated and cooled; the other part of the lubricating oil enters the oil nozzle 5 from the annular oil groove 3-2 on the tile frame 3 through the screw 6 with the hole and is sprayed out from the front end of the oil nozzle 5 to the center direction of the inner hole to cool and lubricate the support tile block 4, the inner thrust tile support black gold surface 1-3 and the outer thrust tile support black gold surface 2-3.

From this, the thrust bearing of this embodiment has the gyration precision height, overhauls convenient advantage.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A thrust bearing is characterized in that: comprises a tile frame (3), inner and outer thrust tiles (1, 2), a supporting tile block (4), an oil nozzle (5) and a screw (6) with a hole;

the inner thrust tile and the outer thrust tile (1; 2) are respectively arranged on two sides of the tile frame (3), and the inner thrust tile and the outer thrust tile (1; 2) and the tile frame (3) jointly limit and support the tile blocks (4);

the inner thrust tile, the outer thrust tile (1; 2) and the tile frame (3) are of an upper half structure and a lower half structure, and the upper half structure and the lower half structure are combined together through screws by the tile frame (3);

the bearing bush bracket (3) is provided with an oil through hole (3-1) and an annular oil groove (3-2), the inner thrust bush block (1; 2) and the outer thrust bush block (2) are provided with inner thrust bush side nozzle holes (1-4) and outer thrust bush side nozzle holes (2-4), and the oil through hole (3-1) corresponds to the inner thrust bush side nozzle holes (1-4) and the outer thrust bush side nozzle holes (2-4) in number and is communicated with each other; the oil spray nozzles (5) are distributed on the supporting tile blocks (4);

the center of the screw (6) with the hole is provided with an oil through hole and communicated with an annular oil groove (3-2) and an oil nozzle (5) on the tile frame (3).

2. A thrust bearing according to claim 1, wherein the inner and outer thrust pads (1; 2) on both sides are mounted to the pad carrier (3) by means of screws (8).

3. A thrust bearing according to claim 1, wherein the inner and outer thrust pads (1; 2) are replaceable tilting pads.

4. A thrust bearing according to claim 1, wherein the support pad (4) is a replaceable tilting pad.