CN219570628U

CN219570628U - Precise slit throttling high-speed air bearing

Info

Publication number: CN219570628U
Application number: CN202320280598.9U
Authority: CN
Inventors: 张家政
Original assignee: Xiamen Aozheng Intelligent Technology Co ltd
Current assignee: Xiamen Aozheng Intelligent Technology Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-08-22
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses a precise slit throttling high-speed air bearing which comprises a bearing outer assembly ring, a bearing inner assembly ring, a vertical slit, a middle annular slit, a top slit, a main air passage, an inclined air passage, a bearing liner and a groove, wherein the bearing outer assembly ring is arranged on the bearing inner assembly ring; the main air passage is communicated with the inclined air passage and the groove; the grooves are respectively communicated with the vertical row of slits, the middle annular slits and the top surface slits. After the scheme is adopted, the utility model comprises the bearing outer assembly ring, the bearing inner assembly ring, the vertical row slit, the middle annular slit, the top slit, the main air passage, the inclined air passage, the bearing liner and the groove; the modularized design and assembly are adopted, so that the rigidity is good, and meanwhile, the maintenance and the replacement of various accessories are convenient; the vertical row slit, the middle annular slit and the top slit all adopt superfine slit structures, so that high-pressure gas is saved; the high-pressure gas is discharged through the vertical row slit, the middle annular slit and the top slit, so that the air is filled between the air bearing and the main shaft, and the air bearing floats on the main shaft, and the service life is long.

Description

Precise slit throttling high-speed air bearing

Technical Field

The utility model relates to the field of bearings, in particular to a precise slit throttling high-speed air bearing.

Background

The contact surface is easy to wear in the use process of the existing bearing, so that the service life of the bearing is influenced, and the bearing is more so. The air bearing produced by the prior production technology can solve the problem of partial abrasion, but has the following structure: 1. the rigidity is poor and the damage is easy; 2. the air consumption is high; 3. the precision is not high.

In view of this, the present utility model has developed a precise slit throttling high-speed air bearing.

Disclosure of Invention

The precise slit throttling high-speed air bearing provided by the utility model has the advantages of good rigidity, small air consumption and long service life.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the utility model relates to a precise slit throttling high-speed air bearing which comprises a bearing outer assembly ring, a bearing inner assembly ring, a vertical slit, a middle annular slit, a top slit, a main air passage, an inclined air passage, a bearing liner and a groove.

The bearing inner assembly ring is fixed inside the bearing outer assembly ring; the bearing pads are fixedly mounted to the inner bores of the top and bottom of the mounting ring in the bearing.

Preferably, the bearing liner is made of high strength wear resistant metal.

The vertical slits are positioned in an inner hole channel of the assembly ring in the bearing, and the size of the vertical slits is 10-15um; the vertical slits are uniformly distributed in the inner hole channels of the inner bearing assembly ring and equally divide the inner hole channels 16 of the inner bearing assembly ring.

The middle annular slit ring is arranged in an inner hole channel of the bearing inner assembly ring and penetrates through the middle of the vertical row slit.

The top slit is positioned at the top and the bottom of the assembly ring in the bearing, and the size of the top slit is 10-15um; the top slits are evenly distributed over the top and bottom of the ring and equally divide the top and bottom 16 of the ring.

The main air passage is communicated with the inclined air passage and the groove; the grooves are respectively communicated with the vertical row of slits, the middle annular slits and the top surface slits.

The inclined air passages are four in number.

Preferably, the included angle between the inclined air passage and the horizontal direction is 40-60 degrees.

After the scheme is adopted, the bearing gasket comprises the bearing outer assembly ring, the bearing inner assembly ring, the vertical row slit, the middle annular slit, the top slit, the main air passage, the inclined air passage, the bearing gasket and the groove, wherein the bearing gasket and the groove 1 are in modularized design and assembly, so that the rigidity is good, and meanwhile, each accessory is convenient to maintain and replace; 2. the vertical row slit, the middle annular slit and the top slit all adopt superfine slit structures, so that high-pressure gas is saved; 3. the high-pressure gas is discharged through the main air passage, the inclined air passage and the groove, then through the vertical row slit, the middle annular slit and the top surface slit, so that the air is filled between the air bearing and the main shaft, and the air bearing floats on the main shaft, and the service life is long.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the utility model from FIG. 1 A-A.

Description of the reference numerals

An outer bearing assembly ring 1, an inner bearing assembly ring 2, a vertical row of slits 3, a middle annular slit 4,

top slit 5, main air duct 6, oblique air duct 7, bearing pad 8, slot 9.

Detailed Description

1-2, the utility model is a precise slit throttling high-speed air bearing, which comprises a bearing outer assembly ring 1, a bearing inner assembly ring 2, a vertical row slit 3, a middle annular slit 4, a top slit 5, a main air passage 6, an inclined air passage 7, a bearing liner 8 and a groove 9, wherein the groove 9 is in modularized design and assembly, so that various accessories can be conveniently maintained and replaced;

the bearing inner assembly ring 2 is fixed inside the bearing outer assembly ring 1; the bearing liner 8 is fixedly assembled in the inner holes at the top and the bottom of the bearing inner assembly ring 2, and high-strength wear-resistant metal is adopted;

the vertical row slit 3 is positioned in an inner hole channel of the bearing inner assembly ring 2, and the size of the vertical row slit is 10-15um; the vertical slits 3 are uniformly distributed in the inner hole channel of the bearing inner assembly ring 2 and equally divide the inner hole channel 16 of the bearing inner assembly ring 2.

The middle annular slit 4 is annularly arranged in an inner hole channel of the bearing inner assembly ring 2 and penetrates through the middle of the vertical row slit 3.

The top slit 5 is positioned at the top and the bottom of the bearing inner assembly ring 2, and the size of the top slit is 10-15um; the top slits 5 are uniformly distributed on the top and bottom of the bearing inner assembly ring 2 and equally divide the top and bottom 16 of the bearing inner assembly ring 2.

The main air passage 6 is communicated with the inclined air passage 7 and the groove 9; the grooves 9 are respectively communicated with the vertical row slit 3, the middle annular slit 4 and the top slit 5.

The included angle between the inclined air passage 7 and the horizontal direction is 40-60 degrees; the number of the inclined air passages 7 is four.

The working principle of the utility model is as follows:

referring to fig. 1-2, the high pressure gas is discharged through the main gas passage 6, the inclined gas passage 7, the groove 9, the vertical slit 3, the middle annular slit 4, and the top slit 5, so that the air bearing and the main shaft are filled with air to float on the main shaft.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a high-speed air supporting bearing of accurate slit throttle which characterized in that: the device comprises a bearing outer assembly ring, a bearing inner assembly ring, a vertical row slit, a middle annular slit, a top slit, a main air passage, an inclined air passage, a bearing liner and a groove; the bearing inner assembly ring is fixed inside the bearing outer assembly ring; the bearing pads are fixedly mounted to the inner bores of the top and bottom of the mounting ring in the bearing.

2. A precision slit throttle high-speed air bearing as defined in claim 1, wherein: the vertical slits are positioned in an inner hole channel of the assembly ring in the bearing, and the size of the vertical slits is 10-15um; the vertical slits are uniformly distributed in the inner hole channels of the inner bearing assembly ring and equally divide the inner hole channels 16 of the inner bearing assembly ring.

3. A precision slit throttle high-speed air bearing as defined in claim 1, wherein: the top slit is positioned at the top and the bottom of the assembly ring in the bearing, and the size of the top slit is 10-15um; the top slits are evenly distributed over the top and bottom of the ring and equally divide the top and bottom 16 of the ring.

4. A precision slit throttle high-speed air bearing as defined in claim 1, wherein: the middle annular slit ring is arranged in an inner hole channel of the bearing inner assembly ring and penetrates through the middle of the vertical row slit.

5. A precision slit throttle high-speed air bearing as defined in claim 1, wherein: the main air passage is communicated with the inclined air passage and the groove; the grooves are respectively communicated with the vertical row of slits, the middle annular slits and the top surface slits.

6. A precision slit throttle high-speed air bearing as defined in claim 1, wherein: the included angle between the inclined air passage and the horizontal direction is 40-60 degrees.