CN220488111U

CN220488111U - Hemispherical air bearing

Info

Publication number: CN220488111U
Application number: CN202322254938.3U
Authority: CN
Inventors: 王美雪; 娄永江
Original assignee: Beijing Changda Technology Co ltd
Current assignee: Beijing Changda Technology Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-02-13
Anticipated expiration: 2033-08-22

Abstract

The utility model discloses a hemispherical air bearing, which relates to the technical field of air bearings and comprises a fixed box and an inflator pump, wherein a ball seat is arranged at the top of the fixed box, an arc-shaped groove is formed in the upper end of the inside of the ball seat, a hemisphere is arranged in the arc-shaped groove, an inflator nozzle is arranged at the front end of the fixed box, and detection connectors are arranged at the front end of the fixed box and positioned at the left side and the right side of the inflator nozzle. This hemisphere air bearing, negative pressure pump can make the air supply have certain pressure, avoid ball seat and hemisphere body direct contact to produce wearing and tearing after the mutual motion, damage air bearing, send into this air bearing inside with gaseous through starting the pump, also carry out preliminary filtration to the air supply when carrying out the inflation, avoid the foreign matter to enter into the inside of pump, spacing fixture block on the filter is connected with the spacing draw-in groove block in the mount, the installation and the dismantlement of filter of being convenient for, can regularly take off to clear up or replace new filter use, in order to ensure the convenience of use.

Description

Hemispherical air bearing

Technical Field

The utility model relates to the technical field of air bearings, in particular to a hemispherical air bearing.

Background

The air bearing is a bearing using gas (usually air, but possibly other gases) as a lubricant, has extremely high rotation precision, is often applied to a precise detection instrument, is used as a measurement reference for precise rotation measurement, has the advantages of high rotation speed, low power consumption, no need of lubrication, high and low temperature resistance, low maintenance cost and the like compared with the traditional rolling bearing and sliding bearing, and is widely applied to high-speed rotating turbine mechanical products such as a blower for sewage treatment, a fuel cell air compressor, a micro gas turbine, a waste heat recovery generator and the like.

However, the existing hemispherical air bearing lacks a device for carrying out negative pressure on air, and the supplied pressure air source is not subjected to filtering and purifying treatment, so that when the air source is impure, foreign matters enter the bearing air cavity and then wear the bearing, the service life of the air bearing is reduced, and a novel hemispherical air bearing is urgently designed aiming at the problems.

Disclosure of Invention

The utility model aims to provide a hemispherical air bearing, which solves the problem that the pressure air source provided in the background art is not filtered and purified, and foreign matters enter a bearing air cavity to cause abrasion of the bearing.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hemisphere air bearing, includes fixed box and pump, the top of fixed box is provided with the ball seat, the arc wall has been seted up to the inside upper end of ball seat, the inside of arc wall is provided with the hemisphere, the front end of fixed box is provided with the charging connector, the front end of fixed box just is located the left and right sides of charging connector and all installs the detection connector, the air inlet has been seted up to the top left end of pump, the mount is installed in the top of pump and the outside that is located the air inlet.

Furthermore, the ball seat and the hemispherical body are made of ceramic materials, and the ceramic ball seat has the characteristics of wear resistance, high temperature resistance, corrosion resistance and the like.

Further, a plurality of groups of air grooves are formed in the inner side wall of the arc-shaped groove, a plurality of air holes are formed in the inner side wall of the arc-shaped groove and located between two adjacent groups of air grooves, and the fluidity of gas is improved, so that the flow of the gas is more stable.

Further, the inside of charging connector is connected with the gas tube, the upper end of gas tube is provided with the negative pressure table, can real-time supervision gas flow and pressure, carries out accurate control to this air bearing.

Further, the one end that the charging connector was kept away from to the gas tube is connected with the filtration purifying box, the right side of filtration purifying box is provided with first connecting pipe, makes the air source carry out purifying treatment after be pure air source, ensures the stability of gas flow, avoids the air source impure to lead to the foreign matter to get into and takes place wearing and tearing in this air bearing, reduction in service life.

Further, the negative pressure pump is installed to the right-hand member of first connecting pipe, the right side of negative pressure pump is connected with the second connecting pipe, the right-hand member of second connecting pipe is provided with the pump, can make the air supply have certain pressure, avoids ball seat and hemisphere direct contact to produce wearing and tearing after the mutual motion, damages air bearing.

Further, spacing draw-in groove has all been seted up at both ends around the inside wall of mount, the inside of mount is provided with the filter, spacing fixture block is all installed to both sides lower extreme around the filter, spacing fixture block is connected with spacing draw-in groove block, the inside of filter is provided with the filter screen, sends gas into this air bearing inside through starting the pump, also carries out preliminary filtration to the air supply when carrying out aerifing, avoids the foreign matter to enter into the inside of pump, and the installation and the dismantlement of the filter of being convenient for are connected to the block, and the filter that can be periodic is cleared up or is replaced new is used to the filter to ensure the convenience of using.

Compared with the prior art, the utility model has the beneficial effects that: this hemisphere air bearing, filtering purification case makes the air source carry out purifying treatment after be the pure air source, ensure the stability of gas flow, avoid the air source impure to lead to the foreign matter to get into this air bearing in take place wearing and tearing, reduce life, the negative pressure pump can make the air source have certain pressure, avoid ball seat and hemisphere body direct contact to produce wearing and tearing after the mutual motion, damage air bearing, send into this air bearing with gas through starting the pump, also carry out preliminary filtration to the air source when carrying out the inflation, avoid the foreign matter to enter into the inside of pump, spacing fixture block on the filter is connected with the spacing draw-in groove block in the mount, the installation and the dismantlement of filter of being convenient for, can regularly take off to clear up or replace new filter use, in order to ensure the convenience of use.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the mounting structure of the inflation tube of the present utility model;

FIG. 3 is a schematic view of a hemispherical mounting structure of the present utility model;

fig. 4 is a schematic diagram of a split structure of a filter plate according to the present utility model.

In the figure: 1. a fixed box; 2. a ball seat; 3. an arc-shaped groove; 4. a hemisphere; 5. an air tank; 6. an air hole; 7. an air charging nozzle; 8. detecting a connecting port; 9. an inflation tube; 10. a negative pressure meter; 11. a filtration purifying box; 12. a first connection pipe; 13. a negative pressure pump; 14. a second connection pipe; 15. an inflator pump; 16. an air inlet; 17. a fixing frame; 18. a limit clamping groove; 19. a filter plate; 20. a limit clamping block; 21. and (3) a filter screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a hemisphere air bearing, includes fixed box 1 and pump 15, the top of fixed box 1 is provided with ball seat 2, arc wall 3 has been seted up to the inside upper end of ball seat 2, the inside of arc wall 3 is provided with hemisphere body 4, ball seat 2 and hemisphere body 4 all adopt ceramic material to make, have characteristics such as wear-resisting, high temperature resistant, corrosion resistant, a plurality of air tank 5 of group have been seted up to the inside wall of arc wall 3, a plurality of air hole 6 has been seted up between the inside wall of arc wall 3 and being located two sets of air tank 5 adjacent, increases the mobility of gas, makes the air current flow more stable.

The front end of fixed box 1 is provided with charging connector 7, detection connector 8 is all installed to the front end of fixed box 1 and be located charging connector 7's the left and right sides, charging connector 7's internal connection has charging tube 9, charging tube 9's upper end is provided with negative pressure table 10, can real-time supervision gas flow and pressure, carries out accurate control to this air bearing, charging tube 9 keeps away from charging connector 7's one end and is connected with filtration purification case 11, filtration purification case 11's right side is provided with first connecting tube 12, makes the air supply carry out the purification treatment after being pure air supply, ensures the stability of gas flow, avoids the air supply impure to lead to the foreign matter to get into this air bearing in the wearing and tearing, reduces life, negative pressure pump 13 is installed to first connecting tube 12's right-hand member, negative pressure pump 13's right side is connected with second connecting tube 14, the right-hand member of second connecting tube 14 is provided with charging pump 15, can make the air supply have certain pressure, avoids ball seat 2 and hemisphere 4 to produce after the direct contact reciprocal movement, damages the air bearing.

In addition, air inlet 16 has been seted up to the top left end of pump 15, mount 17 is installed at the top of pump 15 and is located the outside of air inlet 16, limit clamping groove 18 has all been seted up at both ends around the inside wall of mount 17, the inside of mount 17 is provided with filter 19, limit clamping block 20 is all installed to the front and back both sides lower extreme of filter 19, limit clamping block 20 is connected with limit clamping groove 18 block, the inside of filter 19 is provided with filter screen 21, sends the gas into this air bearing inside through starting pump 15, also carries out preliminary filtration to the air supply when carrying out the inflation, avoids the foreign matter to enter into the inside of pump 15, and the installation and the dismantlement of filter 19 of being convenient for are connected to the block, can regularly take down to clear up or replace new filter 19 and use to ensure the convenience of using.

When using the hemisphere air bearing among this technical scheme, at first send into this air bearing inside through starting the pump 15 with gas, also carry out preliminary filtration to the air supply when carrying out the inflation, avoid the foreign matter to enter into the inside of pump 15, spacing fixture block 20 on the filter 19 and spacing draw-in groove 18 block in the mount 17 are connected, the installation and the dismantlement of filter 19 of being convenient for, can regularly take off to clear up or replace new filter 19 and use, so as to ensure the convenience of use, the air supply loops through negative pressure pump 13 and filtration purifying box 11, make the air supply have certain pressure, avoid ball seat 2 and hemisphere 4 direct contact to produce wearing and tearing after the mutual motion, damage air bearing, also make the air supply be pure air supply after carrying out the purification treatment, ensure the stability of gas flow, avoid the air supply impure to lead to the foreign matter to take place wearing and tearing in this air bearing, reduce life, the upper end of gas pipe 9 is provided with negative pressure table 10, can real-time supervision gas flow and pressure, carry out accurate control to this air bearing, ball seat 2 and hemisphere 4 all adopt ceramic material to make, have wear-resisting, anti-corrosion, the characteristic such as 3, the air supply has a plurality of adjacent air grooves 5 sets of arc grooves are opened, a plurality of air grooves are located between the arc grooves 5, and the arc-shaped air flow grooves are more stable, the air flow is set 5 has, and the arc grooves is more stable, and the air flow is more stable.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hemisphere air bearing, includes fixed box (1) and pump (15), its characterized in that: the utility model discloses a ball seat, including fixed box (1), fixing frame (17) are installed in the top of fixed box (1), ball seat (2) are provided with at the top of fixed box (1), arc wall (3) have been seted up to the inside upper end of ball seat (2), the inside of arc wall (3) is provided with hemisphere (4), the front end of fixed box (1) is provided with charging connector (7), detection connector (8) are all installed to the front end of fixed box (1) and the left and right sides that is located charging connector (7), air inlet (16) have been seted up at the top left end of pump (15), mount (17) are installed at the top of pump (15) and the outside that is located air inlet (16).

2. A hemispherical air bearing according to claim 1, characterized in that: the ball seat (2) and the hemispherical body (4) are made of ceramic materials.

3. A hemispherical air bearing according to claim 1, characterized in that: the inner side wall of the arc-shaped groove (3) is provided with a plurality of groups of air grooves (5), and a plurality of air holes (6) are formed in the inner side wall of the arc-shaped groove (3) and between two adjacent groups of air grooves (5).

4. A hemispherical air bearing according to claim 1, characterized in that: the inside of charging connector (7) is connected with gas tube (9), the upper end of gas tube (9) is provided with negative pressure table (10).

5. A hemispherical air bearing according to claim 4, wherein: one end of the inflation tube (9) far away from the inflation nozzle (7) is connected with a filtering and purifying box (11), and a first connecting tube (12) is arranged on the right side of the filtering and purifying box (11).

6. A hemispherical air bearing according to claim 5, wherein: the right-hand member of first connecting pipe (12) is installed negative pressure pump (13), the right side of negative pressure pump (13) is connected with second connecting pipe (14), the right-hand member of second connecting pipe (14) is provided with inflator pump (15).

7. A hemispherical air bearing according to claim 1, characterized in that: limiting clamping grooves (18) are formed in the front end and the rear end of the inner side wall of the fixing frame (17), a filter plate (19) is arranged in the fixing frame (17), limiting clamping blocks (20) are arranged at the lower ends of the front side and the rear side of the filter plate (19), the limiting clamping blocks (20) are connected with the limiting clamping grooves (18) in a clamping mode, and a filter screen (21) is arranged in the filter plate (19).