CN217582427U - Double-layer bearing box - Google Patents

Abstract

The application provides a double-deck bearing box, including air inlet housing, outer bearing box and interior bearing box, outer bearing box with interior bearing box sets up in the air inlet housing, outer bearing box with interior bearing box respectively with the air inlet housing is connected, wherein, interior bearing box with be provided with the adjusting part between the air inlet housing, the adjusting part is used for adjusting interior bearing box is for the perpendicular well axis direction's of air inlet housing position, interior bearing box includes the interior bearing box, be provided with the spacing groove on the lateral wall of interior bearing box, be provided with the locating part on the air inlet housing, the locating part with the spacing groove is connected, and the position of having solved the bearing box can't be adjusted, influences the accurate axial bracing and the problem of location of bearing box.

Description

Double-layer bearing box

Technical Field

This application belongs to compressor technical field, concretely relates to double layer bearing case.

Background

At present, with the rapid development of the industry, the research and manufacture of compressors are continuously humanized. In the prior art, the bearing box in the compressor and the air inlet casing are fixedly connected, so that the position of the bearing box cannot be adjusted, and the accurate axial support and positioning of the bearing box are influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem that this application will be solved lies in providing a double-deck bearing box, can solve the unable adjustment in position of bearing box, influences the accurate axial support of bearing box and the problem of location.

In order to solve the problem, the application provides a double-deck bearing box, including air inlet housing, outer bearing box and interior bearing box, outer bearing box with interior bearing box sets up in the air inlet housing, outer bearing box with interior bearing box respectively with the air inlet housing is connected, wherein, inner bearing box with be provided with the adjusting part between the air inlet housing, the adjusting part is used for adjusting interior bearing box is for the air inlet housing position on the direction of perpendicular to axis.

Optionally, the inner bearing box includes an inner bearing box body, a limiting groove is provided on a side wall of the inner bearing box body, a limiting part is provided on the air inlet casing, and the limiting part is connected with the limiting groove.

Optionally, the adjusting member is located between the limiting member and the limiting groove, and the adjusting member is located in an inner cavity of the limiting groove, so that the relative position between the limiting member and the limiting groove is adjusted.

Optionally, the inner cavity of the inner bearing box body is provided with a bearing gland and a thrust collar, the bearing gland is fixedly connected with the inner bearing box body, the bearing gland is connected with the supporting bearing and used for positioning the supporting bearing, the thrust collar is connected with the bearing gland, and the thrust collar is connected with the thrust bearing and used for positioning the thrust bearing.

Optionally, the bearing gland compresses tightly with the thrust collar, so that the thrust collar compresses tightly the thrust bearing.

Optionally, the inner bearing housing further includes an inner bearing housing cover and an inner bearing housing sealing member, and the inner bearing housing cover and the inner bearing housing sealing member are respectively connected to the inner bearing housing to seal the inner bearing housing.

Optionally, the outer bearing housing includes an outer bearing housing cover and an outer bearing housing seal, the outer bearing housing cover is disposed on the first end of the air intake housing, and the outer bearing housing seal is disposed on the second end of the air intake housing.

Optionally, an air inlet channel is arranged on the outer bearing box along the axial direction.

Optionally, the double-layer bearing box further includes the oil inlet pipeline, an oil return pipeline, a smoke exhaust pipeline and an isolation air pipeline, and the external interface of the oil inlet pipeline, the external interface of the oil return pipeline, the external interface of the smoke exhaust pipeline and the external interface of the isolation air pipeline are all located on the same side of the air intake casing;

the inner ports of the oil inlet pipeline, the oil return pipeline and the smoke exhaust pipeline are communicated with the inner cavity of the inner bearing box body, a cavity is arranged on a sealing element of the inner bearing box body, and the isolation air pipeline is communicated with the cavity.

Optionally, a flow regulator is arranged on the oil inlet pipeline.

Advantageous effects

The embodiment of the utility model provides a double-deck bearing box, through the adjusting part between inner bearing case and the air inlet casing, and then through the relative position between adjusting part adjustment inner bearing case and the air inlet casing to the position of having solved the bearing box can't be adjusted, influences the accurate axial bracing of bearing box and the problem of location.

Drawings

FIG. 1 is a schematic structural diagram in front cross-sectional view according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a right-view structure of an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of an air intake housing according to an embodiment of the present disclosure;

FIG. 4 isbase:Sub>A schematic view ofbase:Sub>A cross-section A-A of an embodiment of the present application;

FIG. 5 is a schematic view of a cross-sectional structure B-B according to an embodiment of the present application;

FIG. 6 is a schematic cross-sectional front view of an inner bearing housing according to an embodiment of the present application;

FIG. 7 is a schematic view of a cross-sectional structure of a C-C according to an embodiment of the present application.

The reference numerals are represented as:

1. an air intake housing; 2. an outer bearing housing; 201. an outer bearing housing cover; 202. an outer bearing housing seal; 3. an inner bearing housing; 301. an inner bearing housing; 302. an inner bearing box cover; 303. an inner bearing housing seal; 4. an adjustment member; 5. a limiting member; 6. a limiting groove; 7. a bearing gland; 8. a thrust collar; 9. a support bearing; 10. a thrust bearing; 11. an oil inlet pipeline; 12. an oil return line; 13. a smoke exhaust pipeline; 14. the gas line is isolated.

Detailed Description

Referring to fig. 1 to 7 in combination, according to an embodiment of the present application, the present application provides a technical solution: the utility model provides a double-deck bearing box, includes air inlet casing 1, outer bearing box 2 and interior bearing box 3, and outer bearing box 2 and interior bearing box 3 set up in air inlet casing 1, and outer bearing box 2 and interior bearing box 3 are connected with air inlet casing 1 respectively, and wherein, be provided with adjusting part 4 between interior bearing box 3 and the air inlet casing 1, adjusting part 4 is used for adjusting interior bearing box 3 for the position of air inlet casing 1 in the direction of perpendicular to axis. Through outer bearing box 2 and air inlet casing 1 fixed connection, interior bearing box 3 is located outer bearing box 2, interior bearing box 3 is connected with air inlet casing 1 simultaneously, adjust the position of interior bearing box 3 for air inlet casing 1's vertical direction through adjusting part 4, when adjusting suitable position, fix interior bearing box 3 whole on air inlet casing 1 through the bolt, and then improve the axial support and the location of bearing box, avoid the unable adjustment in position of bearing box, the precision that leads to the installation reduces, through the adjustment between interior bearing box 3 and the air inlet casing 1, improve the axial precision of installation, strengthen the fastness of support and the accurate nature of location.

Further, the adjusting member 4 is used to adjust the position of the inner bearing housing 3 in the vertical direction with respect to the intake housing 1, facilitating adjustment of the position between the inner bearing housing 3 and the intake housing 1.

Further, outer bearing box 2 and inner bearing box 3 are installed to the inner chamber of air inlet housing 1, and inner bearing box 3 is located the inner chamber of outer bearing box 2 simultaneously, strengthens double-deck bearing box's support intensity, and convenient to detach and installation bearing box simultaneously, and then the part of the installation inner chamber of being convenient for, wherein, the inner chamber at inner bearing box 3 is all fixed to the part of double-deck bearing box inner chamber.

Furthermore, the relative position between the inner bearing box 3 and the air inlet casing 1 is adjusted through the adjusting piece 4, namely the outer bearing box 2 and the air inlet casing 1 are connected through threads, so that the sealing performance is improved, and the supporting strength is improved.

Further, the adjusting member 4 may be an adjusting member having elasticity, or may also be a gasket, or a gasket and an elastic member may be used together, or an adjusting member having a telescopic function, which is not further limited in this application, wherein the adjusting member 4 is used to adjust the relative position of the inner bearing housing 3 and the intake housing 1.

Further, when installing interior bearing box 3 and air inlet casing 1 each other, ensure that the axis of interior bearing box 3 and the axis of air inlet casing 1 coincide, adjust the position of interior bearing box 3 for the perpendicular axis direction of air inlet casing 1 through adjusting part 4 promptly, increase the axial installation precision between interior bearing box 3 and the air inlet casing 1, and then improve support intensity.

The inner bearing box 3 comprises an inner bearing box body 301, a limiting groove 6 is formed in the side wall of the inner bearing box body 301, a limiting part 5 is arranged on the air inlet casing 1, and the limiting part 5 is connected with the limiting groove 6.

Further, the inner bearing box body 301 and the air intake casing 1 are connected with each other, wherein at least two limiting grooves 6 are arranged on the inner bearing box body 301, the cross section of each limiting groove 6 is square or circular, and the square is preferred, so that a good positioning effect can be achieved. Wherein welded connection has locating part 5 on the air intake casing 1, and wherein the quantity of locating part 5 and the quantity of spacing groove 6 correspond each other, and the shape and the spacing groove 6 of locating part 5 correspond each other, the installation of being convenient for realizes a locating part 5 of spacing groove 6 inner chamber grafting simultaneously.

Further, the opening direction of the limiting groove 6 is perpendicular to the central axis direction of the air inlet casing 1, or the opening direction of the limiting groove 6 is parallel to the central axis direction of the air inlet casing 1, wherein the limiting part 5 is inserted into the inner cavity of the limiting groove 6 from the opening direction of the limiting groove 6, the opening direction of the limiting groove 6 is not further limited, and the insertion connection between the limiting groove 6 and the limiting part 5 is realized.

The adjusting piece 4 is located between the limiting piece 5 and the limiting groove 6, and the adjusting piece 4 is located in the inner cavity of the limiting groove 6, so that the relative positions of the limiting piece 5 and the limiting groove 6 can be adjusted.

Further, the adjusting part 4 is placed in the limiting groove 6, namely, the limiting part 5 and the limiting groove 6 are connected in an inserting mode, namely, the contact height between the limiting part 5 and the limiting groove 6 in the direction perpendicular to the central axis of the air inlet casing 1 is adjusted, and then the position between the inner bearing box 3 and the air inlet casing 1 is adjusted.

As an implementation manner, the adjusting member 4 is a gasket, wherein an opening of the limiting groove 6 is perpendicular to a central axis direction of the air intake casing 1, and an opening direction of the limiting groove 6 is vertically upward, that is, the adjusting member 4 is put into an inner cavity of the limiting groove 6 from the opening, then the limiting member 5 is inserted into the inner cavity of the limiting groove 6 from above, and according to a preset position, the number of the adjusting member 4 is continuously increased or decreased, and then the position between the limiting member 5 and the limiting groove 6 is adjusted.

As another embodiment, the adjusting member 4 is still a gasket, the opening of the limiting groove 6 is still perpendicular to the central axis direction of the air intake casing 1, and the opening direction of the limiting groove 6 is vertically upward, but a plurality of jacks are arranged on the sidewall of one side of the limiting groove 6 in contact with the limiting member 5, the jacks are vertically and uniformly arranged, the adjusting member 4 is inserted into the jacks according to a preset position, that is, the adjusting member 4 is located in the inner cavity of the limiting groove 6, and the limiting member 5 is in contact with the adjusting member 4, so that adjustment is facilitated, the inner bearing housing 3 is prevented from being carried, that is, the adjusting member 4 is inserted into the jacks through the preset position.

The inner cavity of the inner bearing box body 301 is provided with a bearing gland 7 and a thrust collar 8, the bearing gland 7 is fixedly connected with the inner bearing box body 301, the bearing gland 7 is connected with a supporting bearing 9 and used for positioning the supporting bearing 9, the thrust collar 8 is connected with the bearing gland 7, and the thrust collar 8 is connected with a thrust bearing 10 and used for positioning the thrust bearing 10.

Further, the bearing gland 7 is mutually positioned through the spigot and the supporting bearing 9, and the supporting bearing 9 is pressed and positioned.

Further, the thrust collar 8 is connected to the bearing cover 7 through the spigot, and the thrust collar 8 and the thrust bearing 10 are positioned and pressed.

Furthermore, the bearing gland 7 and the support bearing 9 are positioned through the spigot, then the upper part and the lower part of the bearing gland 7 are mutually butted and fixed on the inner bearing box body 301 through bolts, the thrust collar 8 is connected with the spigot of the bearing gland 7, the upper part and the lower part are connected with the thrust bearing 10, and the thrust bearing 10 is compressed and positioned.

The bearing gland 7 is pressed against the thrust collar 8 so that the thrust collar 8 presses against the thrust bearing 10.

Further, the thrust collar 8 and the thrust bearing 10 are mutually positioned through the spigot, and are directly mutually compressed with the thrust bearing 10 through the thrust collar 8, and simultaneously in the outside of the thrust collar 8, the thrust collar 8 and the bearing gland 7 are mutually positioned and connected through the spigot, and are combined through the upper part and the lower part of the bearing gland 7, and the bearing gland 7 is connected with the inner bearing box 301 through bolts, so that the positioning and the compression of the thrust bearing 10 are realized.

The inner bearing housing 3 further comprises an inner bearing housing cover 302 and an inner bearing housing seal 303, the inner bearing housing cover 302 and the inner bearing housing seal 303 being connected with the inner bearing housing 301, respectively, to seal the inner bearing housing 301.

Further, inner bearing case lid 302 and inner bearing box 301 are symmetrical shape, and the first contact surface on the inner bearing box 301 and the second contact surface on the inner bearing case lid 302 contact each other promptly, are about to inner bearing case lid 302 and inner bearing box 301 intercombination, and the while first contact surface has formed the mid-plane with the mutual contact of second contact surface, carries out fixed connection with inner bearing case lid 302 and inner bearing box 301 through the bolt.

Further, an inner bearing box sealing element 303 is arranged between the first contact surface and the second contact surface, wherein the inner bearing box sealing element 303 is positioned and connected with the inner bearing box body 301 through a spigot, so that a sealing effect is achieved, and the lubricating oil is prevented from overflowing.

The outer bearing housing 2 includes an outer bearing housing cover 201 and an outer bearing housing seal 202, the outer bearing housing cover 201 being disposed on a first end of the intake housing 1, and the outer bearing housing seal 202 being disposed on a second end of the intake housing 1.

Further, the side fixed connection of outer bearing case lid 201 and air inlet casing 1, outer bearing case sealing member 202 pass through tang and air inlet casing 1 fixed connection, and outer bearing case lid 201 and outer bearing case sealing member 202 all are located the both sides end of inner bearing case 3, and then have formed the duplex bearing case structure, and outer bearing case 2 and atmosphere together with, reduce the internal pressure of box, prevent that the oil smoke from scurrying into the compressor and polluting the medium.

An air inlet channel is arranged on the outer bearing box 2 along the axial direction.

Furthermore, an axial air inlet mode is adopted, so that the flow loss of the axial air inlet compressor is small, and the overall efficiency of the compressor is improved.

The double-layer bearing box also comprises an oil inlet pipeline 11, an oil return pipeline 12, a smoke exhaust pipeline 13 and an isolation air pipeline 14, wherein an external interface of the oil inlet pipeline 11, an external interface of the oil return pipeline 12, an external interface of the smoke exhaust pipeline 13 and an external interface of the isolation air pipeline 14 are all positioned on the same side of the air inlet casing 1;

the inner ports of the oil inlet pipeline 11, the oil return pipeline 12 and the smoke exhaust pipeline 13 are communicated with the inner cavity of the inner bearing box body 301, a cavity is arranged on the sealing element 303 of the inner bearing box, and the isolation air pipeline 14 is communicated with the cavity.

Furthermore, the external interface of the oil inlet pipeline 11, the external interface of the oil return pipeline 12, the external interface of the smoke exhaust pipeline 13 and the external interface of the isolation air pipeline 14 are all located on the same side of the air inlet casing 1, modularization is adopted, the pipelines are neatly arranged, and installation and maintenance are facilitated.

Furthermore, the inner interface of the smoke exhaust pipeline 13 is communicated with the inner cavity of the inner bearing box body 301, so that smoke generated in the inner bearing box body 301 can be discharged outside through the smoke exhaust pipeline 13 by a smoke exhaust fan, and the increase of the pressure in the inner bearing box 3 is prevented, and further outward oil spilling is caused.

Further, the isolation air pipe 14 injects high-pressure isolation air into the cavity of the inner bearing box sealing member 303, so as to prevent the oil smoke in the inner bearing box 3 from entering the air intake casing 1.

The oil inlet pipeline 11 is provided with a flow regulator.

Furthermore, the flow regulator controls the amount of oil entering the support bearing 9 and the thrust bearing 10 according to the temperature change of the bearing bush during operation and according to the opening degree of the flow regulator, and after the lubricating oil enters the support bearing 9 and the thrust bearing 10, the lubricating oil is lubricated and takes away the generated heat through the oil return pipeline 12.

The working principle is as follows: inner bearing case 3 and outer bearing case 2 are installed to the inner chamber of air inlet casing 1, and wherein, outer bearing case 2 is located the outside of inner bearing case 3 to inner bearing case 3 and air inlet casing 1 swing joint, through the position of adjusting part 4 adjustment inner bearing case 3 for the perpendicular axis direction of air inlet casing 1, improve the axial precision of inner bearing case 3 and the intensity of support simultaneously.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing are only preferred embodiments of the present application, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (10)

1. The utility model provides a double-deck bearing box, its characterized in that, includes air intake casing (1), outer bearing box (2) and interior bearing box (3), outer bearing box (2) with interior bearing box (3) set up in air intake casing (1), outer bearing box (2) with interior bearing box (3) respectively with air intake casing (1) is connected, wherein, interior bearing box (3) with be provided with adjusting part (4) between air intake casing (1), adjusting part (4) are used for adjusting interior bearing box (3) for air intake casing (1) is in the ascending position of the direction of perpendicular to axis.

2. The double-layer bearing housing according to claim 1, wherein the inner bearing housing (3) comprises an inner bearing housing (301), a limiting groove (6) is formed in a side wall of the inner bearing housing (301), a limiting member (5) is arranged on the air intake casing (1), and the limiting member (5) is connected with the limiting groove (6).

3. The double-layer bearing housing according to claim 2, wherein the adjusting member (4) is located between the limiting member (5) and the limiting groove (6), and the adjusting member (4) is located in an inner cavity of the limiting groove (6) so as to adjust the relative positions of the limiting member (5) and the limiting groove (6).

4. The double-layer bearing box according to claim 2, characterized in that a bearing gland (7) and a thrust collar (8) are arranged in the inner cavity of the inner bearing box body (301), the bearing gland (7) is fixedly connected with the inner bearing box body (301), the bearing gland (7) is connected with a support bearing (9) for positioning the support bearing (9), the thrust collar (8) is connected with the bearing gland (7), and the thrust collar (8) is connected with a thrust bearing (10) for positioning the thrust bearing (10).

5. The double-layer bearing housing according to claim 4, characterized in that the bearing gland (7) is pressed against the thrust collar (8) so that the thrust collar (8) presses against the thrust bearing (10).

6. The double bearing housing according to claim 2, characterized in that the inner bearing housing (3) further comprises an inner bearing housing cover (302) and an inner bearing housing seal (303), the inner bearing housing cover (302) and the inner bearing housing seal (303) being connected to the inner bearing housing (301), respectively, to seal the inner bearing housing (301).

7. The double bearing housing according to claim 1, characterized in that the outer bearing housing (2) comprises an outer bearing housing cover (201) and an outer bearing housing seal (202), the outer bearing housing cover (201) being arranged on a first end of the air intake housing (1) and the outer bearing housing seal (202) being arranged on a second end of the air intake housing (1).

8. Double bearing housing according to claim 7, characterized in that the outer bearing housing (2) is provided with an air inlet channel in the axial direction.

9. The double-layer bearing housing according to claim 6, further comprising an oil inlet pipeline (11), an oil return pipeline (12), a smoke exhaust pipeline (13) and an isolation air pipeline (14), wherein an external port of the oil inlet pipeline (11), an external port of the oil return pipeline (12), an external port of the smoke exhaust pipeline (13) and an external port of the isolation air pipeline (14) are all located on the same side of the air inlet casing (1);

the inner interfaces of the oil inlet pipeline (11), the oil return pipeline (12) and the smoke exhaust pipeline (13) are communicated with the inner cavity of the inner bearing box body (301), a cavity is arranged on the inner bearing box sealing element (303), and the isolation air pipeline (14) is communicated with the cavity.

10. Double-deck bearing housing according to claim 9, characterized in that a flow regulator is arranged on the oil inlet line (11).

Images