CN218035552U

CN218035552U - High thrust aeroengine 4 fulcrum bearing seal dynamic test platform

Info

Publication number: CN218035552U
Application number: CN202221780421.7U
Authority: CN
Inventors: 刘辰铭; 付林
Original assignee: Wuxi Dizao Industrial Design Co ltd
Current assignee: Wuxi Dizao Industrial Design Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-12-13
Anticipated expiration: 2032-07-12

Abstract

The utility model provides a 4 fulcrum bearing seal dynamic test platforms of high thrust aeroengine relates to the test field, including the mounting panel, the top center fixedly connected with shells of department of mounting panel, the front surface of shell is provided with sealed lid, the front surface center fixedly connected with motor of department of sealed lid, and the rear surface center department of sealed lid rotates and is connected with the rectangular block, the rear side internal surface sliding connection of shell has the rotation axis, and the shell internal surface middle part position fixedly connected with dog all around, the front side position of dog is provided with the bearing, and the outer lane rear surface contact of front surface and bearing when the dog, the front end internal surface threaded connection of rotation axis has the regulating block, aims at solving current engine bearing seal dynamic test device and has the problem that the leakproofness is not high, the engine bearing seals at dynamic test in-process stability not good, engine bearing seal dynamic test result precision not high.

Description

High thrust aeroengine 4 fulcrum bearing seal dynamic test platform

Technical Field

The utility model relates to a test field especially relates to 4 fulcrum bearing seal dynamic test platform of high thrust aeroengine.

Background

The engine bearing seal plays an important role in the working process of a high-thrust aircraft engine, and in order to improve the quality performance of the engine bearing seal product, the engine bearing seal is subjected to dynamic test after the engine bearing seal is processed.

The existing dynamic testing device for the engine bearing seal has the problems of low sealing performance, poor stability of the engine bearing seal in the dynamic testing process and low accuracy of the dynamic testing result of the engine bearing seal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing dynamic testing device for the sealing of the engine bearing in the prior art has poor sealing performance, poor stability in the dynamic testing process of the sealing of the engine bearing and low precision of the dynamic testing result of the sealing of the engine bearing, and the dynamic testing platform for the sealing of the 4-fulcrum bearing of the aero-engine with large thrust is provided.

In order to realize the purpose, the utility model adopts the following technical scheme: 4 fulcrum bearing seal dynamic test platforms of high thrust aeroengine, including the mounting panel, the top center fixedly connected with shell of department of mounting panel, the front surface of shell is provided with sealed lid, the front surface center fixedly connected with motor of department of sealed lid, and the rear surface center of sealed lid department rotates and is connected with the rectangular block, the rear side internal surface sliding connection of shell has the rotation axis, and the internal surface middle part fixedly connected with dog all around of shell, the front side position of dog is provided with the bearing, and the outer lane rear surface contact of the front surface of dog and bearing, the front end internal surface threaded connection of rotation axis has the regulating block, and the position sliding connection that the surface of rotation axis is close to the bearing has the cooperation piece, the surface of regulating block is close to the front side position and runs through and is provided with the connecting piece, the surperficial front side position fixedly connected with transition piece of rotation axis, the surface of transition piece and the surface sliding connection of connecting piece.

Preferably, the driving end of the motor extends outwards through the surface of the sealing cover, and the driving end of the motor is fixedly connected with the center of the front surface of the rectangular block.

Preferably, the rear end surfaces of the connecting pieces penetrate through the surfaces of the rotating shafts respectively, and the rear end surfaces of the connecting pieces are fixedly connected with the surfaces of the matching blocks.

Preferably, the center of the rear surface of the matching block and the front surface of the stop block are fixedly connected with rubber pads respectively, the edge position of the rear surface of the matching block is in sliding connection with the front surface of the outer ring of the bearing, and the surface of the rubber pad is in sliding connection with the front surfaces of the outer ring and the inner ring of the bearing respectively.

Preferably, the front outer surface of the transition piece is in sliding engagement with the surface of the rectangular block.

Preferably, an air pipe is communicated with one side of the front side of the top of the outer surface of the shell, and a pressure instrument is communicated with the other side of the front side of the top of the outer surface of the shell.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses in, in use, establish the surface at the rotation axis with the bearing housing, put into the shell with the rotation axis, and realize the rigidity of rear end face with the rear side internal surface sliding connection of shell, stretch into the transition piece through the spanner, realize that the regulating part is rotatory and remove, and then realize that the connecting piece removes along with the removal of regulating part, and then realize the inner circle that supports the bearing that the rubber pad on cooperation piece surface is tight, and realize the rigidity of bearing inner race through the contact of bearing inner race rear surface and the rubber pad on dog surface, and then it is rotatory to pass through motor drive rectangular block, it drives rotation axis and connecting piece simultaneous rotation to realize the transition piece, and then realize cooperation piece is rotatory, and then realize the inner circle of bearing rotatory under the effect of friction force, and the irrotational of bearing, the unstable problem of bearing position when measuring has been solved.

2. The utility model discloses in, in use is convenient for realize bearing inner race and dog through the rubber pad on dog surface and the rubber pad on cooperation piece surface to and the leakproofness between rotation axis and the bearing inner race guarantees, through adding gas in the trachea to the shell, and the pressure instrument through setting up realizes the ressure measurement of front portion in the shell, observes pressure instrument's reading through a period, and when the reading was unchangeable, the leakproofness of bearing is good promptly, and when the reading changes, the leakproofness of bearing is relatively poor promptly.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention shown in FIG. 1;

fig. 3 is a schematic cross-sectional view of fig. 2 according to the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3 according to the present invention.

Illustration of the drawings: 1. mounting a plate; 2. a housing; 3. an air pipe; 4. a pressure gauge; 5. a sealing cover; 6. a motor; 7. a rotating shaft; 8. a stopper; 9. a bearing; 10. a rubber pad; 11. a matching block; 12. a regulating block; 13. a connecting member; 14. a rectangular block; 15. a transition piece.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations set forth in the following description of the specific embodiments.

Example 1

As shown in fig. 1-4, a high thrust aero-engine 4 fulcrum bearing sealing dynamic test platform comprises a mounting plate 1, a top center of the mounting plate 1 is fixedly connected with a housing 2, a front surface of the housing 2 is provided with a sealing cover 5, a front surface center of the sealing cover 5 is fixedly connected with a motor 6, a rear surface center of the sealing cover 5 is rotatably connected with a rectangular block 14, a rear inner surface of the housing 2 is slidably connected with a rotating shaft 7, a middle position of a peripheral inner surface of the housing 2 is fixedly connected with a stop block 8, a front side position of the stop block 8 is provided with a bearing 9, when the front surface of the stop block 8 is in contact with an outer ring rear surface of the bearing 9, a front end inner surface of the rotating shaft 7 is in threaded connection with an adjusting block 12, a position of the surface of the rotating shaft 7 close to the bearing 9 is slidably connected with a matching block 11, a position of the surface of the adjusting block 12 close to the front side is provided with a connecting piece 13 in a penetrating manner, a front side position of the surface of the rotating shaft 7 is fixedly connected with a transition piece 15, and a surface of the transition piece 15 is slidably connected with a connecting piece 13.

The whole embodiment 1 achieves the effect that, in use, the arranged sealing cover 5 is installed in position through bolts, so that the bearing 9 can be tested in a sealed environment conveniently, the rear end face of the rotating shaft 7 is supported through the rear surface of the shell and the rotation of the rotating shaft 7 is not influenced, the stop block 8 is convenient for the shell 2 to be divided into the inner space of the shell 2 when in use and the sealing performance of the bearing 9 is conveniently detected, the adjusting block 12 in threaded connection is convenient for the adjusting block 12 to be rotated through a wrench and the rotating shaft 7 to be clamped, so that the adjusting block 12 is moved, the matching block 11 in sliding connection is convenient for preventing the surface of the rotating shaft 7 from being scratched when the matching block 11 is moved, and the connecting piece 13 which is arranged to penetrate through the adjusting block 12 ensures that the connecting piece 13 cannot rotate due to the rotation of the adjusting block 12 and only can move along with the horizontal movement of the adjusting block 12, and the transition piece 15 is in sliding connection with the connecting piece 13, so that the connecting piece 13 rotates through the transition piece 15, and the four-point support of the front surface of the front outer ring of the bearing 9 is realized through the edge position of the rear surface of the matching block 11.

Example 2

As shown in fig. 1 to 4, the driving end of the motor 6 extends outwards through the surface of the sealing cover 5, the driving end of the motor 6 is fixedly connected to the center of the front surface of the rectangular block 14, the rear end of the connecting piece 13 respectively penetrates through the surface of the rotating shaft 7, the rear end of the connecting piece 13 is fixedly connected to the surface of the matching block 11, the center of the rear surface of the matching block 11 and the front surface of the stopper 8 are respectively fixedly connected to a rubber pad 10, the edge position of the rear surface of the matching block 11 is slidably connected to the front surface of the outer ring of the bearing 9, the surface of the rubber pad 10 is slidably connected to the front surfaces of the outer ring and the inner ring of the bearing 9, the outer surface of the front side of the transition piece 15 is slidably connected to the surface of the rectangular block 14, the air tube 3 is communicated to one side of the top front side of the outer surface of the housing 2, and the pressure meter 4 is communicated to the other side of the top front side of the outer surface of the housing 2.

The whole embodiment 2 achieves the effect that, in use, the motor 6 drives the rectangular block 14 to rotate, the connecting piece 13 is arranged to penetrate through the surface of the rotating shaft 7, the connecting piece 13 is further ensured not to drive the connecting piece 13 to rotate when the adjusting block 12 is manually rotated, the arranged rubber pad 10 is convenient for realizing the sealing performance of the inner ring, the outer ring, the stop block 8 and the matching block 11 of the bearing 9, the outer ring is ensured not to rotate when the inner ring rotates through the friction force of the rubber pad 10, the transition piece 15 is convenient to drive to rotate along with the rotation of the rectangular block 14 through the sliding connection of the rectangular block 14 and the transition piece 15, gas is added into the shell 2 through the gas pipe 3, the pressure measurement of the front part in the shell 2 is realized through the arranged pressure instrument 4, the reading of the pressure instrument 4 is observed for a period of time, when the reading is not changed, namely, the sealing performance of the bearing 9 is good, when the reading is changed, namely the sealing performance of the bearing 9 is poor,

the working principle is as follows:

to sum up, the utility model is provided with the bearing 9 sleeved on the surface of the rotating shaft 7, the rotating shaft 7 is placed in the shell 2 and is connected with the inner surface of the rear side of the shell 2 in a sliding way to realize the position fixation of the rear end face, the adjusting block 12 is extended into the transition piece 15 by a wrench to realize the rotation and the movement of the adjusting block 12, the connecting piece 13 is further moved along with the movement of the adjusting block 12, the rubber pad 10 on the surface of the matching block 11 is further tightly propped against the inner ring of the bearing 9, the position fixation of the outer ring of the bearing 9 is realized by the contact of the rear surface of the outer ring of the bearing 9 and the rubber pad 10 on the surface of the stop block 8, the rectangular block 14 is further driven to rotate by the motor 6, the transition piece 15 drives the rotating shaft 7 and the connecting piece 13 to rotate simultaneously, and then the matching block 11 is rotated, the inner ring of the bearing 9 is rotated under the action of friction force, the outer ring of the bearing 9 is not rotated, the high-speed rotation state of the bearing 9 is simulated, the use strength of the bearing is observed, in use, the sealing performance between the outer ring of the bearing 9 and the stop block 8 and between the rotating shaft 7 and the inner ring of the bearing 9 is ensured conveniently through the rubber pad 10 on the surface of the stop block 8 and the rubber pad 10 on the surface of the matching block 11, gas is added into the shell 2 through the gas pipe 3, pressure measurement of the front part in the shell 2 is realized through the arranged pressure instrument 4, the reading of the pressure instrument 4 is observed for a while, when the reading is not changed, the sealing performance of the bearing 9 is good, and when the reading is changed, the sealing performance of the bearing 9 is poor.

It should be noted that the various standard components used in the present invention can be obtained from the market, and the non-standard components can be customized, and the connection mode adopted by the present invention, such as bolt connection, welding, etc., is also a very common means in the mechanical field, and the inventor is not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the equivalent embodiments modified or modified by the above technical contents disclosed as equivalent variations to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. High thrust aeroengine 4 fulcrum bearing seal dynamic test platform, including mounting panel (1), its characterized in that, fixedly connected with shell (2) is located at the top center of mounting panel (1), the front surface of shell (2) is provided with sealed lid (5), fixedly connected with motor (6) are located at the front surface center of sealed lid (5), and the rear surface center of sealed lid (5) is located to rotate and is connected with rectangular block (14), the rear side internal surface sliding connection of shell (2) has rotation axis (7), and the internal surface middle part position fixedly connected with dog (8) all around of shell (2), the front side position of dog (8) is provided with bearing (9), and the outer lane rear surface contact of the front surface of dog (8) and bearing (9), the front end internal surface threaded connection of rotation axis (7) has regulating block (12), and the position sliding connection that the surface of rotation axis (7) is close to bearing (9) has cooperation piece (11), the surface of regulating block (12) runs through and is provided with connecting piece (13) near the front side position, the surface front side position fixedly connected with transition piece (15) of rotation axis (7), the surface sliding connection piece (15) and surface connecting piece (13) of transition piece (13).

2. The high-thrust aeroengine 4 fulcrum bearing sealing dynamic test bench according to claim 1, characterized in that the driving end of the motor (6) extends outwards through the surface of the sealing cover (5), and the driving end of the motor (6) is fixedly connected with the center of the front surface of the rectangular block (14).

3. The high-thrust aeroengine 4 fulcrum bearing seal dynamic test bench according to claim 1, characterized in that the rear end faces of the connecting pieces (13) respectively penetrate through the surface of the rotating shaft (7), and the rear end faces of the connecting pieces (13) are fixedly connected with the surface of the matching block (11).

4. The high-thrust aero-engine 4 fulcrum bearing seal dynamic test bench according to claim 1, wherein a rubber pad (10) is fixedly connected to the center of the rear surface of the matching block (11) and the front surface of the stop block (8) respectively, the edge position of the rear surface of the matching block (11) is in sliding connection with the front surface of the outer ring of the bearing (9), and the surface of the rubber pad (10) is in sliding connection with the front surfaces of the outer ring and the inner ring of the bearing (9) respectively.

5. The high-thrust aeroengine 4 fulcrum bearing seal dynamic test bench according to claim 1, characterized in that the front side outer surface of the transition piece (15) is in embedded sliding connection with the surface of the rectangular block (14).

6. The high-thrust aeroengine 4 fulcrum bearing sealing dynamic test bench according to claim 1, characterized in that a gas pipe (3) is communicated at one side of the front side of the top of the outer surface of the housing (2), and a pressure instrument (4) is communicated at the other side of the front side of the top of the outer surface of the housing (2).