CN214173642U

CN214173642U - Experimental device for test sealing member performance

Info

Publication number: CN214173642U
Application number: CN202120293239.8U
Authority: CN
Inventors: 王娟; 刘美红; 祝世兴; 李遇贤; 孙军锋; 魏戬; 宋晓磊; 雷俊杰
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-09-10
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to an experimental device for testing the performance of a seal, which belongs to the technical field of mechanical seals. The utility model includes a shaft sleeve installed on the work spindle, and also includes front stopper, grate seal module I, compression spring I, flange cover, seal seat I, fingertip seal module I, brush seal module, seal seat II, fingertip seal module II, grate seal module II, compression spring II, rear baffle plate, coupling, compression spring III, adjustment cylinder, positioning cylinder; the front stop is installed on the shaft sleeve, one end of the positioning cylinder is installed in the front stop, the adjustment sleeve is located on the outer circumference of the shaft sleeve, the grate seal module I is located on the outer circumference of the shaft sleeve, one side of the seal seat I is positioned on the side of the flange cover, the fingertip seal module I and the brush seal module are placed on the shaft sleeve, and one side of the seal seat II is connected to the other side of the seal seat I. The utility model has simple operation, can reduce production cost, can reduce experiment cost, improve experiment efficiency, can further ensure the accuracy of test experiment, simple structure, reliable work, and easy to popularize.

Description

Experimental device for test sealing member performance

Technical Field

The utility model relates to an experimental apparatus for test sealing member performance, concretely relates to experimental apparatus for be used for testing aeroengine inner seal sealing performance belongs to mechanical seal technical field.

Background

With the rapid development of the aerospace industry, people pay more and more attention to the performance of the engine, and the sealing technology and the sealing performance are important factors influencing the performance of the engine. Advanced sealing technology can greatly improve the performance of the engine and reduce the fuel consumption rate and the movement and maintenance cost. The sealing types of the aircraft engine mainly comprise a labyrinth seal, a brush seal, a fingertip seal and the like. At present, scholars at home and abroad deeply research the structures and characteristics of the seals such as the labyrinth seal, the brush seal, the fingertip seal and the like, establish a theoretical analysis model and a numerical analysis method, and explore and search for adverse factors influencing the sealing performance. Through research, it is found that most of the existing research on the sealing performance stays on numerical simulation, a mature measuring device related to the sealing performance is not provided, and an error exists between a simulation result and an actual experiment result, which is one of bottleneck problems hindering the development of the sealing technology. The conditional experiment can be carried out and verified, and it is experimental device can only be tested same seal structure's sealing member at the same time, can not carry out the contrast of equivalent condition, and the main shaft easily wears out in the experimentation, and the experiment is with high costs, experimental inefficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a test device of test sealing member performance to solve the experiment of test sealing member performance with high costs, the inefficiency scheduling problem.

The utility model discloses realize according to following technical scheme: an experimental device for testing the performance of a sealing part comprises a shaft sleeve 17 arranged on a working main shaft, and further comprises a front stop block 1, a comb tooth sealing module I2, a pressure spring I3, a flange cover 4, a sealing seat I5, a fingertip sealing module I6, a brush type sealing module 7, a sealing seat II 8, a fingertip sealing module II 9, a comb tooth sealing module II 10, a pressure spring II 11, a rear baffle 12, a coupler 13, a pressure spring III 14, an adjusting cylinder 15 and a positioning cylinder 16; a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 are arranged on the shaft sleeve 17 from one end to the other end, a limiting groove 23 is further formed on the shaft sleeve 17, one end of a front stop block 1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular sliding groove 24 is formed in the front stop block 1, a positioning groove I26 is formed in one end of a positioning cylinder 16, one end of the positioning cylinder 16 is installed in the rectangular sliding groove 24 of the front stop block 1, a positioning groove II 25 is formed in the other end of the positioning cylinder 16, the positioning cylinder 16 is arranged on the shaft sleeve 17, the adjusting cylinder 15 is of a Z-shaped structure in cross section, the adjusting cylinder 15 is located on the periphery of the shaft sleeve 17 through the matching of the positioning block I28 at one end of the adjusting cylinder and the positioning groove II 25 of the positioning cylinder 16, a mounting groove I31 is formed in the circumference of the comb tooth sealing module I2, one end of the comb tooth sealing module I2 is attached to the fixing block II 29 of the adjusting cylinder 15, the fixing block II 29 is used for axially positioning the comb tooth sealing module I2, a placing groove II 30 is formed in the other end of the comb tooth sealing module I2, a pressure spring III 14 is positioned in the placing groove II 30 of the comb tooth sealing module I2, the flange cover 4 is an L-shaped flange cover, a fixing through hole I33 is formed in the flange cover 4, a stepped hole I32 is formed in the L-shaped bottom of the flange cover 4, the comb tooth sealing module I2 is positioned on the periphery of the shaft sleeve 17, the comb tooth sealing module I2 is placed in the stepped hole I32, the pressure spring I3 is placed in a cavity formed by the placing groove I31 and the stepped hole II 32, a positioning groove III 35 is formed in the middle of the end portion of the flange cover 4, a fixing through hole II 39 is formed in the sealing seat I5, a fixing boss 38 is arranged in the middle of one side of the sealing seat I5, the fixing boss 38 is positioned in the positioning groove III 35 of the flange cover 4, one side of the sealing seat I5 is positioned on the side portion of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the placing groove II 30 and the fixing boss 38, a stepped hole II 37 is formed in the fixed boss 38, a fluid inlet hole I40 is formed in the seal seat I5, a stepped positioning groove 43 is formed in the middle of the other side of the seal seat I5, a connecting groove I41 is formed in the other side of the seal seat I5, the fingertip seal module I6 and the brush seal module 7 are arranged in the stepped positioning groove 43 and located on the shaft sleeve 17, the fingertip seal module I6 and the brush seal module 7 are located on two sides of the fluid inlet hole I40, a fixed through hole III 45 is formed in the seal seat II 8, a connecting block 36 is arranged on one side of the seal seat II 8, a positioning block 42 is arranged in the middle of one side of the seal seat II 8, a connecting groove II 48 is formed between the positioning block 42 and the connecting block 36, one side of the seal seat II 8 is connected with the connecting groove I41 through the connecting block 36 in a matched mode on the other side of the seal seat I5, the positioning block 42 of the seal seat II 8 is positioned and installed in the stepped positioning groove 43, and the positioning block 42 is used for axially positioning the brush seal module 7, it has the fluid to go into notes hole II 44 to open on II 8 of seal receptacle, II 8 inside shoulder hole III 46 of having seted up of seal receptacle, II 8 inside of seal receptacle has installed location boss 47, II 9 laminating location boss 47 of fingertip seal module are installed in shoulder hole III 46, location boss 47 is used for carrying out axial positioning to II 9 of fingertip seal module, II 10 of labyrinth seal module and II 11 cooperations of pressure spring are installed in shoulder hole III 46, II 9 of fingertip seal module, III 10 of labyrinth seal module are located the fluid and go into II 44 both sides of notes hole, backplate 12 is installed in the spacing groove 23 of axle sleeve 17 with II 8 terminal surface laminating of seal receptacle, backplate 12 is used for going into II 8 axial positioning of seal receptacle, shaft coupling 13 is installed and is located the axle sleeve 17 tip on the main shaft.

Fixing through hole I33 of blind flange 4, II 39 of the fixing through hole of seal receptacle I5, III 45 of the fixing through hole of seal receptacle II 8 are coaxial, and blind flange 4, seal receptacle I5, II 8 of seal receptacle are connected the installation through the cooperation of bolt and I33 of fixing through hole, II 39 of fixing through hole, III 45 of fixing through hole.

The fluid inlet I40 and the fluid inlet II 44 are stepped holes.

And a wear-resistant coating 34 is arranged on the shaft sleeve 17 between the shaft shoulder III 20 and the shaft shoulder IV 21.

Can install two fingertip seal module I6 in the ladder constant head tank 43 of seal receptacle I5, every fingertip seal module I6 is located the fluid respectively and goes into I40 both sides in the notes hole, can install two brush seal module 7 in the ladder constant head tank 43 of seal receptacle I5, and two brush seal module 7 are located the fluid respectively and go into I40 both sides in the notes hole.

The fingertip sealing module II 9 can be replaced by the brush sealing module 7 in the stepped hole III 46 of the sealing seat II 8.

The fingertip sealing module I6 and the fingertip sealing module II 9 can be in contact fingertip sealing or non-contact fingertip sealing.

The diameter of the inner circumferential surface 27 of the positioning cylinder 16 is the same as the diameter of the outer surface of the shaft shoulder III 20 of the shaft sleeve 17.

The working principle of the experimental device for testing the performance of the sealing piece is as follows: high-temperature and high-pressure gas is injected through the fluid injection hole I40, and the sealing performance of the fingertip sealing module I6 and the brush type sealing module 7 can be compared under the condition of high-speed rotation of the main shaft; the brush type sealing module 7 is taken away, high-temperature and high-pressure gas is injected into the fluid injection hole I40, the sealing performance of the fingertip sealing module I6 and the sealing performance of the fingertip sealing module II 9 can be compared, at the moment, the fingertip sealing module I6 can be a contact type fingertip sealing module, the fingertip sealing module II 9 can be a non-contact type fingertip sealing module, and the sealing performance of contact type fingertip sealing and non-contact type fingertip sealing can be compared in an experiment under the condition; the fingertip sealing module I6 is taken away, high-temperature and high-pressure gas is injected through the fluid injection hole I40, and the sealing performance of the comb tooth sealing module I2 and the brush type sealing module 7 can be compared; the pressure spring I3 and the pressure spring III 14 are taken away, high-temperature and high-pressure gas is injected through the fluid injection hole I40, and the sealing performance of the labyrinth sealing module I2 can be measured; high-temperature and high-pressure gas is injected through the fluid injection hole II 44, the sealing performance of the fingertip sealing module II 9 and the labyrinth sealing module III 10 can be compared, the fingertip sealing module II 9 can be in contact type or non-contact type fingertip sealing, namely the sealing performance of the contact type fingertip sealing and the labyrinth sealing module III 10 can be compared, and the sealing performance of the non-contact type fingertip sealing and the labyrinth sealing module III 10 can also be compared; and (3) the fingertip sealing module II 9 is used for replacing the baffle plate, and high-temperature and high-pressure gas is injected through the fluid inlet hole II 44, so that the sealing performance of the grate sealing module III 10 can be measured.

The utility model discloses following beneficial effect has:

1. the experimental device for testing the performance of the sealing piece can be directly installed on the existing spindle, is simple to operate and can reduce the production cost;

2. the performance of the sealing elements with different structures can be tested and contrasted at the same time, and the performance of the sealing elements with the same structure and different specifications can also be tested at the same time, so that the experiment cost can be reduced, and the experiment efficiency can be improved;

3. two fluid inlet holes are formed, so that the accuracy of a test experiment can be further ensured;

4. simple structure, reliable operation and easy popularization.

Drawings

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

FIG. 2 is a schematic view of the shaft sleeve structure of the present invention;

FIG. 3 is a schematic view of the front block structure of the present invention;

FIG. 4 is a schematic view of the positioning cylinder of the present invention;

FIG. 5 is a schematic view of the structure of the adjusting cylinder of the present invention;

FIG. 6 is a schematic structural view of a comb tooth sealing module I of the present invention;

FIG. 7 is a schematic view of the structure of the flange cover of the present invention;

FIG. 8 is a schematic structural view of the seal seat I of the present invention;

FIG. 9 is a schematic structural view of a seal seat II of the present invention;

fig. 10 is a schematic view of the assembly structure of the present invention.

The reference numbers in the figures are: 1: front block, 2: the grate sealing module I and 3: pressure spring I, 4: flange cover, 5: seal receptacle I, 6: fingertip sealing module I, 7: brush seal module, 8: seal seats ii, 9: fingertip sealing module ii, 10: and (3) a grate sealing module II, 11: pressure spring II, 12: tailgate, 13: coupling, 14: pressure spring III, 15: adjusting cylinder, 16: positioning cylinder, 17: shaft sleeve, 18: shaft shoulders I and 19: shaft shoulders II, 20: shaft shoulders III, 21: shaft shoulders IV and 22: shaft shoulder V, 23: spacing groove, 24: rectangular chute, 25: positioning grooves II, 26: positioning groove I, 27: inner circumferential surface, 28: fixed block i, 29: and fixing blocks II and 30: placing grooves II and 31: the arrangement grooves I and 32: stepped holes i, 33: fixing through holes i, 34: wear-resistant coating, 35: positioning groove III, 36: connecting block, 37: stepped holes ii, 38: fixed boss, 39: fixing through holes II, 40: fluid inlet holes i, 41: connecting groove I, 42: positioning block, 43: step positioning groove, 44: fluid inlet holes ii, 45: fixing through holes iii, 46: stepped holes iii, 47: positioning boss and 48: and a connecting groove II.

Detailed Description

The invention will be further described with reference to the following drawings and examples, but the scope of the invention is not limited thereto.

Example 1: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 mounted on a working main shaft, and further comprises a front stop block 1, a labyrinth seal module i 2, a pressure spring i 3, a flange cover 4, a seal seat i 5, a fingertip seal module i 6, a brush seal module 7, a seal seat ii 8, a fingertip seal module ii 9, a labyrinth seal module ii 10, a pressure spring ii 11, a rear baffle 12, a coupler 13, a pressure spring iii 14, an adjusting cylinder 15 and a positioning cylinder 16; a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 are arranged on the shaft sleeve 17 from one end to the other end, a limiting groove 23 is further formed on the shaft sleeve 17, one end of a front stop block 1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular sliding groove 24 is formed in the front stop block 1, a positioning groove I26 is formed in one end of a positioning barrel 16, one end of the positioning barrel 16 is installed in the rectangular sliding groove 24 of the front stop block 1, a positioning groove II 25 is formed in the other end of the positioning barrel 16, the positioning barrel 16 is arranged on the shaft sleeve 17, the adjusting barrel 15 is of a Z-shaped structure in cross section, the adjusting barrel 15 is located on the periphery of the shaft sleeve 17 in a matching mode through a fixing block I28 at one end of the adjusting barrel and the positioning groove II 25 of the positioning barrel 16, a mounting groove I31 is formed in the circumference of a comb tooth sealing module I2, one end of the comb tooth sealing module I2 is attached to a fixing block II 29 of the adjusting barrel 15, a mounting groove II 30 is formed in the other end of the comb tooth sealing module I2, the pressure spring III 14 is positioned in a placing groove II 30 of the labyrinth seal module I2, the flange cover 4 is an L-shaped flange cover, a fixing through hole I33 is formed in the flange cover 4, a stepped hole I32 is formed in the L-shaped bottom of the flange cover 4, the labyrinth seal module I2 is positioned on the periphery of the shaft sleeve 17, the labyrinth seal module I2 is placed in the stepped hole I32, the pressure spring I3 is placed in a cavity formed by the placing groove I31 and the stepped hole II 32, a positioning groove III 35 is formed in the middle of the end part of the flange cover 4, a fixing through hole II 39 is formed in the seal seat I5, a fixing boss 38 is arranged in the middle of one side of the seal seat I5, the fixing boss 38 is positioned in the positioning groove III 35 of the flange cover 4, one side of the seal seat I5 is positioned on the side part of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the placing groove II 30 and the fixing boss 38, a stepped hole II 37 is formed in the fixing boss 38, a fluid inlet I40 is formed in a seal seat I5, a step positioning groove 43 is formed in the middle of the other side of the seal seat I5, a connecting groove I41 is formed in the other side of the seal seat I5, a fingertip seal module I6 and a brush seal module 7 are arranged in the step positioning groove 43 and located on a shaft sleeve 17, the fingertip seal module I6 and the brush seal module 7 are located on two sides of the fluid inlet I40, a fixing through hole III 45 is formed in the seal seat II 8, a connecting block 36 is arranged on one side of the seal seat II 8, a positioning block 42 is arranged in the middle of one side of the seal seat II 8, a connecting groove II 48 is formed between the positioning block 42 and the connecting block 36, one side of the seal seat II 8 is connected to the other side of the seal seat I5 in a matched mode through the connecting block 36 and the connecting groove I41, the positioning block 42 of the seal seat II 8 is positioned and installed in the step positioning groove 43, a fluid inlet II 44 is formed in the seal seat II 8, a step hole III 46 is formed in the seal seat II 8, a positioning boss 47 is arranged in a sealing seat II 8, a fingertip sealing module II 9 is attached to the positioning boss 47 and installed in a stepped hole III 46, a labyrinth sealing module II 10 is installed in the stepped hole III 46 in a matching mode with a pressure spring II 11, the fingertip sealing module II 9 and the labyrinth sealing module III 10 are located on two sides of a fluid inlet injection hole II 44, a rear baffle 12 is attached to the end face of the sealing seat II 8 and installed in a limiting groove 23 of a shaft sleeve 17, and a coupler 13 is installed on the end portion of the shaft sleeve 17 on a main shaft.

The I33 of fixing through hole of blind flange 4, II 39 of fixing through hole of seal receptacle I5, III 45 of fixing through hole of seal receptacle II 8 are coaxial, and blind flange 4, seal receptacle I5, II 8 of seal receptacle pass through the bolt and I33 of fixing through hole, II 39 of fixing through hole, III 45 cooperation connection installation of fixing through hole.

The fluid inlet I40 and the fluid inlet II 44 are stepped holes.

Example 2: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 mounted on a working main shaft, and further comprises a front stop block 1, a labyrinth seal module i 2, a pressure spring i 3, a flange cover 4, a seal seat i 5, a fingertip seal module i 6, a brush seal module 7, a seal seat ii 8, a fingertip seal module ii 9, a labyrinth seal module ii 10, a pressure spring ii 11, a rear baffle 12, a coupler 13, a pressure spring iii 14, an adjusting cylinder 15 and a positioning cylinder 16; a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 are arranged on the shaft sleeve 17 from one end to the other end, a limiting groove 23 is further formed on the shaft sleeve 17, one end of a front stop block 1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular sliding groove 24 is formed in the front stop block 1, a positioning groove I26 is formed in one end of a positioning barrel 16, one end of the positioning barrel 16 is installed in the rectangular sliding groove 24 of the front stop block 1, a positioning groove II 25 is formed in the other end of the positioning barrel 16, the positioning barrel 16 is arranged on the shaft sleeve 17, the adjusting barrel 15 is of a Z-shaped structure in cross section, the adjusting barrel 15 is located on the periphery of the shaft sleeve 17 in a matching mode through a fixing block I28 at one end of the adjusting barrel and the positioning groove II 25 of the positioning barrel 16, a mounting groove I31 is formed in the circumference of a comb tooth sealing module I2, one end of the comb tooth sealing module I2 is attached to a fixing block II 29 of the adjusting barrel 15, a mounting groove II 30 is formed in the other end of the comb tooth sealing module I2, the pressure spring III 14 is positioned in a placing groove II 30 of the labyrinth seal module I2, the flange cover 4 is an L-shaped flange cover, a fixing through hole I33 is formed in the flange cover 4, a stepped hole I32 is formed in the L-shaped bottom of the flange cover 4, the labyrinth seal module I2 is positioned on the periphery of the shaft sleeve 17, the labyrinth seal module I2 is placed in the stepped hole I32, the pressure spring I3 is placed in a cavity formed by the placing groove I31 and the stepped hole II 32, a positioning groove III 35 is formed in the middle of the end part of the flange cover 4, a fixing through hole II 39 is formed in the seal seat I5, a fixing boss 38 is arranged in the middle of one side of the seal seat I5, the fixing boss 38 is positioned in the positioning groove III 35 of the flange cover 4, one side of the seal seat I5 is positioned on the side part of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the placing groove II 30 and the fixing boss 38, a stepped hole II 37 is formed in the fixing boss 38, a fluid inlet I40 is formed in a seal seat I5, a step positioning groove 43 is formed in the middle of the other side of the seal seat I5, a connecting groove I41 is formed in the other side of the seal seat I5, a fingertip seal module I6 and a brush seal module 7 are arranged in the step positioning groove 43 and located on a shaft sleeve 17, the fingertip seal module I6 and the brush seal module 7 are located on two sides of the fluid inlet I40, a fixing through hole III 45 is formed in the seal seat II 8, a connecting block 36 is arranged on one side of the seal seat II 8, a positioning block 42 is arranged in the middle of one side of the seal seat II 8, a connecting groove II 48 is formed between the positioning block 42 and the connecting block 36, one side of the seal seat II 8 is connected to the other side of the seal seat I5 in a matched mode through the connecting block 36 and the connecting groove I41, the positioning block 42 of the seal seat II 8 is positioned and installed in the step positioning groove 43, a fluid inlet II 44 is formed in the seal seat II 8, a step hole III 46 is formed in the seal seat II 8, a positioning boss 47 is arranged in a sealing seat II 8, a fingertip sealing module II 9 is attached to the positioning boss 47 and installed in a stepped hole III 46, a labyrinth sealing module II 10 is installed in the stepped hole III 46 in a matching mode with a pressure spring II 11, the fingertip sealing module II 9 and the labyrinth sealing module III 10 are located on two sides of a fluid inlet injection hole II 44, a rear baffle 12 is attached to the end face of the sealing seat II 8 and installed in a limiting groove 23 of a shaft sleeve 17, and a coupler 13 is installed on the end portion of the shaft sleeve 17 on a main shaft.

The fluid inlet I40 and the fluid inlet II 44 are stepped holes.

A fingertip seal module I6 is arranged in a step positioning groove 43 of a seal seat I5, a brush type seal module 7 is replaced by two contact fingertip seal modules I6, and each contact fingertip seal module I6 is respectively positioned on two sides of a fluid inlet hole I40.

The fingertip seal module II 9 can be replaced by the brush seal module 7 in the stepped hole III 46 of the seal seat II 8.

Example 3: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 mounted on a working main shaft, and further comprises a front stop block 1, a labyrinth seal module i 2, a pressure spring i 3, a flange cover 4, a seal seat i 5, a fingertip seal module i 6, a brush seal module 7, a seal seat ii 8, a fingertip seal module ii 9, a labyrinth seal module ii 10, a pressure spring ii 11, a rear baffle 12, a coupler 13, a pressure spring iii 14, an adjusting cylinder 15 and a positioning cylinder 16; a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 are arranged on the shaft sleeve 17 from one end to the other end, a limiting groove 23 is further formed on the shaft sleeve 17, one end of a front stop block 1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular sliding groove 24 is formed in the front stop block 1, a positioning groove I26 is formed in one end of a positioning barrel 16, one end of the positioning barrel 16 is installed in the rectangular sliding groove 24 of the front stop block 1, a positioning groove II 25 is formed in the other end of the positioning barrel 16, the positioning barrel 16 is arranged on the shaft sleeve 17, the adjusting barrel 15 is of a Z-shaped structure in cross section, the adjusting barrel 15 is located on the periphery of the shaft sleeve 17 in a matching mode through a fixing block I28 at one end of the adjusting barrel and the positioning groove II 25 of the positioning barrel 16, a mounting groove I31 is formed in the circumference of a comb tooth sealing module I2, one end of the comb, the pressure spring III 14 is positioned in a placing groove II 30 of the labyrinth seal module I2, the flange cover 4 is an L-shaped flange cover, a fixing through hole I33 is formed in the flange cover 4, a stepped hole I32 is formed in the L-shaped bottom of the flange cover 4, the labyrinth seal module I2 is positioned on the periphery of the shaft sleeve 17, the labyrinth seal module I2 is placed in the stepped hole I32, the pressure spring I3 is placed in a cavity formed by the placing groove I31 and the stepped hole II 32, a positioning groove III 35 is formed in the middle of the end part of the flange cover 4, a fixing through hole II 39 is formed in the seal seat I5, a fixing boss 38 is arranged in the middle of one side of the seal seat I5, the fixing boss 38 is positioned in the positioning groove III 35 of the flange cover 4, one side of the seal seat I5 is positioned on the side part of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the placing groove II 30 and the fixing boss 38, a stepped hole II 37 is formed in the fixing boss 38, a fluid inlet I40 is formed in a seal seat I5, a step positioning groove 43 is formed in the middle of the other side of the seal seat I5, a connecting groove I41 is formed in the other side of the seal seat I5, a fingertip seal module I6 and a brush seal module 7 are arranged in the step positioning groove 43 and located on a shaft sleeve 17, the fingertip seal module I6 and the brush seal module 7 are located on two sides of the fluid inlet I40, a fixing through hole III 45 is formed in the seal seat II 8, a connecting block 36 is arranged on one side of the seal seat II 8, a positioning block 42 is arranged in the middle of one side of the seal seat II 8, a connecting groove II 48 is formed between the positioning block 42 and the connecting block 36, one side of the seal seat II 8 is connected to the other side of the seal seat I5 in a matched mode through the connecting block 36 and the connecting groove I41, the positioning block 42 of the seal seat II 8 is positioned and installed in the step positioning groove 43, a fluid inlet II 44 is formed in the seal seat II 8, a step hole III 46 is formed in the seal seat II 8, a positioning boss 47 is arranged in a sealing seat II 8, a fingertip sealing module II 9 is attached to the positioning boss 47 and installed in a stepped hole III 46, a labyrinth sealing module II 10 is installed in the stepped hole III 46 in a matching mode with a pressure spring II 11, the fingertip sealing module II 9 and the labyrinth sealing module III 10 are located on two sides of a fluid inlet injection hole II 44, a rear baffle 12 is attached to the end face of the sealing seat II 8 and installed in a limiting groove 23 of a shaft sleeve 17, and a coupler 13 is installed on the end portion of the shaft sleeve 17 on a main shaft.

The fluid inlet I40 and the fluid inlet II 44 are stepped holes.

A fingertip seal module I6 is arranged in a step positioning groove 43 of a seal seat I5, a brush type seal module 7 is replaced by two non-contact fingertip seal modules I6, and each non-contact fingertip seal module I6 is respectively positioned on two sides of a fluid injection hole I40.

Example 4: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 mounted on a working main shaft, and further comprises a front stop block 1, a labyrinth seal module i 2, a pressure spring i 3, a flange cover 4, a seal seat i 5, a fingertip seal module i 6, a brush seal module 7, a seal seat ii 8, a fingertip seal module ii 9, a labyrinth seal module ii 10, a pressure spring ii 11, a rear baffle 12, a coupler 13, a pressure spring iii 14, an adjusting cylinder 15 and a positioning cylinder 16; a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 are arranged on the shaft sleeve 17 from one end to the other end, a limiting groove 23 is further formed on the shaft sleeve 17, one end of a front stop block 1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular sliding groove 24 is formed in the front stop block 1, a positioning groove I26 is formed in one end of a positioning barrel 16, one end of the positioning barrel 16 is installed in the rectangular sliding groove 24 of the front stop block 1, a positioning groove II 25 is formed in the other end of the positioning barrel 16, the positioning barrel 16 is arranged on the shaft sleeve 17, the adjusting barrel 15 is of a Z-shaped structure in cross section, the adjusting barrel 15 is located on the periphery of the shaft sleeve 17 in a matching mode through a fixing block I28 at one end of the adjusting barrel and the positioning groove II 25 of the positioning barrel 16, a mounting groove I31 is formed in the circumference of a comb tooth sealing module I2, one end of the comb tooth sealing module I2 is attached to a fixing block II 29 of the adjusting barrel 15, a mounting groove II 30 is formed in the other end of the comb tooth sealing module I2, the pressure spring III 14 is positioned in a placing groove II 30 of the labyrinth seal module I2, the flange cover 4 is an L-shaped flange cover, a fixing through hole I33 is formed in the flange cover 4, a stepped hole I32 is formed in the L-shaped bottom of the flange cover 4, the labyrinth seal module I2 is positioned on the periphery of the shaft sleeve 17, the labyrinth seal module I2 is placed in the stepped hole I32, the pressure spring I3 is placed in a cavity formed by the placing groove I31 and the stepped hole II 32, a positioning groove III 35 is formed in the middle of the end part of the flange cover 4, a fixing through hole II 39 is formed in the seal seat I5, a fixing boss 38 is arranged in the middle of one side of the seal seat I5, the fixing boss 38 is positioned in the positioning groove III 35 of the flange cover 4, one side of the seal seat I5 is positioned on the side part of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the placing groove II 30 and the fixing boss 38, a stepped hole II 37 is formed in the fixing boss 38, a fluid inlet I40 is formed in a seal seat I5, a step positioning groove 43 is formed in the middle of the other side of the seal seat I5, a connecting groove I41 is formed in the other side of the seal seat I5, a fingertip seal module I6 and a brush seal module 7 are arranged in the step positioning groove 43 and located on a shaft sleeve 17, the fingertip seal module I6 and the brush seal module 7 are located on two sides of the fluid inlet I40, a fixing through hole III 45 is formed in the seal seat II 8, a connecting block 36 is arranged on one side of the seal seat II 8, a positioning block 42 is arranged in the middle of one side of the seal seat II 8, a connecting groove II 48 is formed between the positioning block 42 and the connecting block 36, one side of the seal seat II 8 is connected to the other side of the seal seat I5 in a matched mode through the connecting block 36 and the connecting groove I41, the positioning block 42 of the seal seat II 8 is positioned and installed in the step positioning groove 43, a fluid inlet II 44 is formed in the seal seat II 8, a step hole III 46 is formed in the seal seat II 8, a positioning boss 47 is arranged in a sealing seat II 8, a fingertip sealing module II 9 is attached to the positioning boss 47 and installed in a stepped hole III 46, a labyrinth sealing module II 10 is installed in the stepped hole III 46 in a matching mode with a pressure spring II 11, the fingertip sealing module II 9 and the labyrinth sealing module III 10 are located on two sides of a fluid inlet injection hole II 44, a rear baffle 12 is attached to the end face of the sealing seat II 8 and installed in a limiting groove 23 of a shaft sleeve 17, and a coupler 13 is installed on the end portion of the shaft sleeve 17 on a main shaft.

The fluid inlet I40 and the fluid inlet II 44 are stepped holes.

A fingertip sealing module I6 is arranged in a step positioning groove 43 of a sealing seat I5 and is replaced by a brush type sealing module 7, and the two brush type sealing modules 7 are respectively positioned on two sides of a fluid injection hole I40.

The fingertip seal module II 9 in the stepped hole III 46 of the seal seat II 8 can be a non-contact fingertip seal module II 9.

Claims

1. The utility model provides an experimental apparatus for test sealing member performance which characterized in that: the comb-shaped tooth sealing device comprises a shaft sleeve (17) arranged on a working main shaft, and further comprises a front stop block (1), a comb-tooth sealing module I (2), a pressure spring I (3), a flange cover (4), a sealing seat I (5), a fingertip sealing module I (6), a brush-type sealing module (7), a sealing seat II (8), a fingertip sealing module II (9), a comb-tooth sealing module II (10), a pressure spring II (11), a rear baffle plate (12), a coupler (13), a pressure spring III (14), an adjusting cylinder (15) and a positioning cylinder (16); a shaft shoulder I (18), a shaft shoulder II (19), a shaft shoulder III (20), a shaft shoulder IV (21) and a shaft shoulder V (22) are arranged on the shaft sleeve (17) from one end to the other end, a limiting groove (23) is further formed in the shaft sleeve (17), one end of a front stop block (1) is positioned and installed on the shaft sleeve (17) through the shaft shoulder I (18), a rectangular sliding groove (24) is formed in the front stop block (1), a positioning groove I (26) is formed in one end of a positioning barrel (16), one end of the positioning barrel (16) is installed in the rectangular sliding groove (24) of the front stop block (1), a positioning groove II (25) is formed in the other end of the positioning barrel (16), the positioning barrel (16) is arranged on the shaft sleeve (17), the adjusting barrel (15) is of a Z-shaped structure, the adjusting barrel (15) is matched with the positioning groove II (25) of the positioning barrel (16) through the fixing block I (28) at one end to be positioned at the periphery of the shaft sleeve (17), a first placing groove (31) is formed in the circumference of a first comb tooth sealing module (2), one end of the first comb tooth sealing module (2) is attached to a second fixing block (29) of an adjusting cylinder (15), a second placing groove (30) is formed in the other end of the first comb tooth sealing module (2), a pressure spring (14) is located in the second placing groove (30) of the first comb tooth sealing module (2), a flange cover (4) is an L-shaped flange cover, a fixing through hole I (33) is formed in the flange cover (4), a stepped hole I (32) is formed in the L-shaped bottom of the flange cover (4), the first comb tooth sealing module (2) is located on the periphery of a shaft sleeve (17), the first comb tooth sealing module (2) is placed in the stepped hole I (32), the first pressure spring (3) is placed in a cavity formed by the first placing groove (31) and the stepped hole I (32), a positioning groove (35) is formed in the middle of the end of the flange cover (4), seted up fixed through hole II (39) on seal receptacle I (5), fixed boss (38) have been installed at seal receptacle I (5) one side middle part, fixed boss (38) are located constant head tank III (35) of blind flange (4), seal receptacle I (5) one side is fixed a position at blind flange (4) lateral part through fixed boss (38), pressure spring III (14) are placed in the cavity of settling groove II (30) and fixed boss (38) constitution, it has shoulder hole II (37) to open in fixed boss (38), it goes into notes hole I (40) to have seted up the fluid on seal receptacle I (5), ladder constant head tank (43) have been seted up at seal receptacle I (5) opposite side middle part, spread groove I (41) have been seted up to seal receptacle I (5) opposite side, fingertip seal module I (6), brush seal module (7) are settled and are located on axle sleeve (17) in ladder constant head tank (43), fingertip seal module I (6), The brush type sealing module (7) is positioned on two sides of a fluid inlet injection hole I (40), a fixing through hole III (45) is formed in a sealing seat II (8), a connecting block (36) is arranged on one side of the sealing seat II (8), a positioning block (42) is arranged in the middle of one side of the sealing seat II (8), a connecting groove II (48) is formed between the positioning block (42) and the connecting block (36), one side of the sealing seat II (8) is connected to the other side of the sealing seat I (5) in a matching mode through the connecting block (36) and the connecting groove I (41), the positioning block (42) of the sealing seat II (8) is positioned and installed in a stepped positioning groove (43), a fluid inlet injection hole II (44) is formed in the sealing seat II (8), a stepped hole III (46) is formed in the sealing seat II (8), a positioning boss (47) is arranged in the sealing seat II (8), a fingertip sealing module II (9) is attached to the positioning boss (47) and installed in the stepped hole (46), the comb tooth sealing module II (10) and the pressure spring II (11) are installed in the stepped hole III (46) in a matched mode, the fingertip sealing module II (9) and the comb tooth sealing module II (10) are located on two sides of the fluid inlet hole II (44), the rear baffle (12) and the end face of the sealing seat II (8) are installed in the limiting groove (23) of the shaft sleeve (17) in a fit mode, and the coupler (13) is installed on the main shaft and located at the end portion of the shaft sleeve (17).

2. The experimental apparatus for testing the performance of seals according to claim 1, wherein: the fixing through holes II (39) of the fixing through hole I (33) of the flange cover (4), the fixing through hole II (39) of the sealing seat I (5) and the fixing through hole III (45) of the sealing seat II (8) are coaxial, and the flange cover (4), the sealing seat I (5) and the sealing seat II (8) are connected and installed in a matched mode through bolts and the fixing through hole I (33), the fixing through hole II (39) and the fixing through hole III (45).

3. The experimental apparatus for testing the performance of seals according to claim 1, wherein: the fluid inlet hole I (40) and the fluid inlet hole II (44) are stepped holes.

4. The experimental apparatus for testing the performance of seals according to claim 1, wherein: and a wear-resistant coating (34) is arranged on the shaft sleeve (17) between the shaft shoulder III (20) and the shaft shoulder IV (21).

5. The experimental apparatus for testing the performance of seals according to claim 1, wherein: can install two fingertip seal module I (6) in ladder constant head tank (43) of seal receptacle I (5), every fingertip seal module I (6) are located fluid respectively and enter I (40) both sides of sprue, can install two brush seal module (7) in ladder constant head tank (43) of seal receptacle I (5), and two brush seal module (7) are located fluid respectively and enter I (40) both sides of sprue.

6. The experimental apparatus for testing the performance of seals according to claim 1, wherein: the fingertip sealing module II (9) can be replaced by a brush type sealing module (7) in the stepped hole III (46) of the sealing seat II (8).

7. The experimental apparatus for testing the performance of seals according to claim 1, wherein: the fingertip sealing module I (6) and the fingertip sealing module II (9) can be in contact fingertip sealing or non-contact fingertip sealing.

8. The experimental apparatus for testing the performance of seals according to claim 1, wherein: the diameter of the inner circumferential surface (27) in the positioning cylinder (16) is the same as the diameter of the outer surface of the shaft shoulder III (20) of the shaft sleeve (17).