CN112629760B - Experimental device for test sealing member performance - Google Patents
Experimental device for test sealing member performance Download PDFInfo
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- CN112629760B CN112629760B CN202110142218.0A CN202110142218A CN112629760B CN 112629760 B CN112629760 B CN 112629760B CN 202110142218 A CN202110142218 A CN 202110142218A CN 112629760 B CN112629760 B CN 112629760B
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- 238000007789 sealing Methods 0.000 title claims abstract description 341
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 244000126211 Hericium coralloides Species 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims description 51
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000002474 experimental method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/025—Details with respect to the testing of engines or engine parts
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Abstract
The invention relates to an experimental device for testing the performance of a sealing element, and belongs to the technical field of mechanical sealing. The invention comprises a shaft sleeve arranged on a working main shaft, and further comprises a front stop block, a comb tooth sealing module I, a pressure spring I, a flange cover, a sealing seat I, a fingertip sealing module I, a brush sealing module, a sealing seat II, a fingertip sealing module II, a comb tooth sealing module II, a pressure spring II, a rear baffle, a coupler, a pressure spring III, an adjusting cylinder and a positioning cylinder; the front stop block is arranged on the shaft sleeve, one end of the positioning cylinder is arranged in the front stop block, the adjusting cylinder is positioned on the periphery of the shaft sleeve, the comb tooth sealing module I is positioned on the periphery of the shaft sleeve, one side of the sealing seat I is positioned on the side part of the flange cover, the fingertip sealing module I and the brush type sealing module are arranged on the shaft sleeve, and one side of the sealing seat II is connected on the other side of the sealing seat I. The invention has simple operation and can reduce the production cost; the experimental cost can be reduced, and the experimental efficiency can be improved; the accuracy of the test experiment can be further ensured; simple structure, reliable operation and easy popularization.
Description
Technical Field
The invention relates to an experimental device for testing the sealing performance of a sealing element, in particular to an experimental device for testing the sealing performance of the sealing element in an aero-engine, and belongs to the technical field of mechanical sealing.
Background
With the rapid development of aerospace industry, people pay more attention to the performance of an engine, and the sealing technology and the sealing performance are important factors influencing the performance of the engine. The 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 aero-engine mainly comprise a comb tooth sealing, a brush sealing, a fingertip sealing and the like. At present, scholars at home and abroad conduct intensive research on the structures and characteristics of sealing such as comb tooth sealing, brush sealing, fingertip sealing and the like, establish a theoretical analysis model and a numerical analysis method, and explore and find adverse factors influencing sealing performance. Through researches, the existing sealing performance research mostly stays on numerical simulation, no mature measuring device related to the sealing performance exists, and errors exist between simulation results and actual experimental results, which is one of bottleneck problems for preventing the development of sealing technology. The experimental verification can be carried out under the condition, the experimental device can only carry out the experiment on the sealing element with the same sealing structure at the same time, the comparison of the same condition can not be carried out, and the main shaft is easy to wear in the experimental process, so that the experimental cost is high and the experimental efficiency is low.
Disclosure of Invention
The invention aims to provide an experimental device for testing the performance of a sealing element, so as to solve the problems of high experimental cost, low efficiency and the like for testing the performance of the sealing element.
The invention is realized according to the following technical scheme: the experimental device for testing the performance of the sealing element 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; the shaft sleeve 17 is provided with a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 from one end to the other end, the shaft sleeve 17 is also provided with a limit groove 23, one end of the front stop block 1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular chute 24 is arranged in the front stop block 1, a positioning groove I26 is arranged in one end of the positioning cylinder 16, one end of the positioning cylinder 16 is installed in the rectangular chute 24 of the front stop block 1, a positioning groove II 25 is arranged 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 in a Z-shaped structure with a cross section, the adjusting cylinder 15 is matched with the positioning groove II 25 of the positioning cylinder 16 through a fixed block I28 at one end of the adjusting cylinder and is positioned on the periphery of the shaft sleeve 17, a positioning groove I31 is arranged on the periphery of the comb sealing module I2, one end of the comb sealing module I2 is jointed with the fixed block II 29 of the adjusting cylinder 15, the fixing block II 29 is used for axially positioning the comb sealing module I2, the other end part of the comb sealing module I2 is internally provided with a positioning groove II30, the pressure spring III 14 is positioned in the positioning groove II30 of the comb sealing module I2, the flange cover 4 is an L-shaped flange cover, the flange cover 4 is provided with a fixing through hole I33, the L-shaped bottom of the flange cover 4 is internally provided with a stepped hole I32, the comb sealing module I2 is positioned at the periphery of the shaft sleeve 17, the comb sealing module I2 is arranged in the stepped hole I32, the pressure spring I3 is arranged in a cavity formed by the positioning groove I31 and the stepped hole II 32, the middle part of the end part of the flange cover 4 is provided with a positioning groove III 35, the sealing seat I5 is provided with a fixing through hole II 39, the middle part of one side of the sealing seat I5 is provided with a fixing boss 38, 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 at the side part of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in a cavity formed by the placement groove II30 and the fixing boss 38, a stepped hole II 37 is formed in the fixing boss 38, a fluid inlet hole I40 is formed in the sealing seat I5, a stepped positioning groove 43 is formed in the middle of the other side of the sealing seat I5, a connecting groove I41 is formed in the other side of the sealing seat I5, the fingertip sealing module I6 and the brush type sealing module 7 are placed in the stepped positioning groove 43 and positioned on the shaft sleeve 17, the fingertip sealing module I6, the brush type sealing module 7 is located the fluid and goes into the both sides of annotating hole I40, fixed through-hole III 45 has been seted up on the seal seat II 8, install connecting block 36 on seal seat II 8 one side, locating piece 42 has been installed at the middle part of seal seat II 8 one side, form spread groove II 48 between locating piece 42 and the connecting block 36, seal seat II 8 one side is connected on seal seat I5 opposite side through connecting block 36 and spread groove I41 cooperation, the locating piece 42 location of seal seat II 8 is installed in ladder constant head tank 43, locating piece 42 is used for carrying out axial location to brush type sealing module 7, open on seal seat II 8 has fluid to go into annotate hole II 44, seal seat II 8 inside has been seted up ladder hole III 46, seal seat II 8 inside has been installed and has been located location boss 47, finger tip sealing module II laminating location boss 47 is installed in ladder hole III 46, location boss 47 is used for carrying out axial location to finger tip sealing module II 9, finger tip sealing module II 10 and pressure spring II 11 cooperation are installed in ladder hole III, finger tip sealing module II 9, finger tip sealing module II 10 is located the both sides of fluid and is located the fluid and is gone into hole II, back end face II 12 is laminated with seal seat II 8 and seal seat 8 laminating end face and is installed at the spacing groove 17 is located the shaft sleeve 17 and is located the shaft coupling end of shaft sleeve 17 at the back end portion of seal seat 17.
The flange cover 4, the sealing seat I5 and the sealing seat II 8 are connected with the fixing through hole I33, the fixing through hole II 39 and the fixing through hole III 45 in a matched mode through bolts.
The fluid inlet injection hole I40 and the fluid inlet injection hole 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.
Two fingertip sealing modules I6 can be arranged in the step positioning groove 43 of the sealing seat I5, each fingertip sealing module I6 is respectively positioned at two sides of the fluid inlet injection hole I40, two brush sealing modules 7 can be arranged in the step positioning groove 43 of the sealing seat I5, and the two brush sealing modules 7 are respectively positioned at two sides of the fluid inlet injection hole I40.
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 contact fingertip sealing or non-contact fingertip sealing.
The diameter of the inner circumferential surface 27 inside 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 experimental device for testing the performance of the sealing element has the working principle that: high-temperature high-pressure gas is injected through the fluid injection hole I40, and the sealing performance of the fingertip sealing module I6 and the brush sealing module 7 can be compared under the high-speed rotation condition of the main shaft; the brush type sealing module 7 is taken away, high-temperature high-pressure gas is injected through the fluid injection hole I40, the sealing performance of the fingertip sealing module I6 and 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 through experiments under the condition; the fingertip sealing module I6 is taken away, high-temperature 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 sealing module 7 can be compared; taking the compression springs I3 and III 14 away, injecting high-temperature high-pressure gas through the fluid inlet injection hole I40, and measuring the sealing performance of the comb tooth sealing module I2; the high-temperature high-pressure gas is injected through the fluid injection hole II 44, so that the sealing performance of the fingertip sealing module II 9 and the sealing performance of the comb tooth sealing module III 10 can be compared, the fingertip sealing module II 9 can be in contact or non-contact fingertip sealing, the sealing performance of the contact fingertip sealing and the sealing performance of the comb tooth sealing module III 10 can be compared, and the sealing performance of the non-contact fingertip sealing and the sealing performance of the comb tooth sealing module III 10 can be compared; the sealing performance of the comb sealing module III 10 can be measured by injecting high-temperature high-pressure gas into the transposition baffle of the fingertip sealing module II 9 through the fluid injection hole II 44.
The invention has the following beneficial effects:
1. the experimental device for testing the performance of the sealing element can be directly arranged on the existing main shaft, is simple to operate, and can reduce the production cost;
2. The performance of sealing elements with different structures can be tested and compared at the same time, and the performance of sealing elements with different specifications with the same structure can be tested at the same time, so that the experiment cost can be reduced, and the experiment efficiency can be improved;
3. two fluid inlets are arranged, 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 diagram of the structure of the present invention;
FIG. 2 is a schematic view of a bushing structure according to the present invention;
FIG. 3 is a schematic view of the front stop block structure of the present invention;
FIG. 4 is a schematic view of a positioning cylinder according to the present invention;
FIG. 5 is a schematic view of the adjusting cylinder of the present invention;
FIG. 6 is a schematic view of the structure of the comb sealing module I of the invention;
FIG. 7 is a schematic view of a flange cover according to the present invention;
FIG. 8 is a schematic view of the structure of the seal seat I of the present invention;
FIG. 9 is a schematic view of a seal seat II of the present invention;
fig. 10 is a schematic view of the assembled structure of the present invention.
The reference numerals in the figures are: 1: positive stop, 2: comb sealing module I, 3: compression spring I, 4: flange cover, 5: sealing seat I, 6: fingertip sealing module i, 7: brush seal module, 8: sealing seats II and 9: fingertip sealing modules II, 10: grate sealing module II, 11: compression springs II, 12: a tailgate, 13: coupling, 14: compression springs III, 15: adjustment cylinder, 16: positioning barrel, 17: shaft sleeve, 18: shoulder I, 19: shoulder II, 20: shoulder iii, 21: shaft shoulders IV and 22: shoulder v, 23: limit groove, 24: rectangular chute, 25: positioning grooves II and 26: positioning grooves I and 27: inner circumferential surface, 28: fixed blocks I, 29: fixed blocks II, 30: mounting grooves II, 31: mounting grooves I, 32: stepped holes i, 33: fixing through holes I, 34: wear-resistant coating, 35: positioning grooves III, 36: connecting block, 37: stepped holes II, 38: fixing boss, 39: fixing through holes II, 40: fluid inlet ports i, 41: connecting grooves I and 42: positioning blocks, 43: step positioning groove, 44: fluid inlet orifices ii, 45: fixing through holes iii, 46: stepped hole III, 47: positioning boss, 48: and a connecting groove II.
Detailed Description
The invention will be further described with reference to the drawings and examples, but the invention is not limited to the scope.
Example 1: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 arranged on a working main shaft, and further comprises a front stop block1, 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 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; the shaft sleeve 17 is provided with a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 from one end to the other end, the shaft sleeve 17 is also provided with a limit groove 23, one end of the front stop block1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular chute 24 is arranged in the front stop block1, a positioning groove I26 is arranged in one end of the positioning cylinder 16, one end of the positioning cylinder 16 is installed in the rectangular chute 24 of the front stop block1, a positioning groove II 25 is arranged 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 in a Z-shaped structure with a cross section, the adjusting cylinder 15 is matched with the positioning groove II 25 of the positioning cylinder 16 through a fixed block I28 at one end of the adjusting cylinder and is positioned on the periphery of the shaft sleeve 17, a positioning groove I31 is arranged on the periphery of the comb sealing module I2, one end of the comb sealing module I2 is jointed with the fixed block II 29 of the adjusting cylinder 15, the other end of the comb sealing module I2 is internally provided with a mounting groove II 30, a pressure spring III 14 is positioned in the mounting groove II 30 of the comb 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 sealing module I2 is positioned at the periphery of the shaft sleeve 17, the comb sealing module I2 is arranged in the stepped hole I32, the pressure spring I3 is arranged in a cavity formed by the mounting groove I31 and the stepped hole II 32, the middle part of the end part of the flange cover 4 is provided with a positioning groove III 35, the sealing seat I5 is provided with a fixing through hole II 39, the middle part of one side of the sealing seat I5 is provided with a fixing boss 38, 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 at the side of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the mounting groove II 30 and the fixing boss 38, the fixing boss 38 is internally provided with a stepped hole II 37, the sealing seat I5 is provided with a fluid inlet hole I40, the middle part of the other side of the sealing seat I5 is provided with a stepped positioning groove 43, the other side of the sealing seat I5 is provided with a connecting groove I41, the fingertip sealing module I6 and the brush sealing module 7 are arranged on the shaft sleeve 17 in the stepped positioning groove 43, the fingertip sealing module I6 and the brush sealing module 7 are positioned on two sides of the fluid inlet hole I40, the sealing seat II 8 is provided with a fixing through hole III 45, one side of the sealing seat II 8 is provided with a connecting block 36, the middle part of one side of the sealing seat II 8 is provided with a positioning block 42, 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 on the other side of the sealing seat I5 in a matched manner through the connecting block 36 and the connecting groove I41, the locating piece 42 of seal seat II 8 is fixed a position and is installed in ladder constant head tank 43, open on seal seat II 8 has fluid to go into annotate hole II 44, seal seat II 8 inside has been seted up shoulder hole III 46, seal seat II 8 inside has been installed and has been located boss 47, fingertip seal module II 9 laminating location boss 47 is installed in shoulder hole III 46, the cooperation of comb tooth seal module II 10 and pressure spring II 11 is installed in shoulder hole III 46, fingertip seal module II 9, comb tooth seal module III 10 is located fluid and goes into annotate hole II 44 both sides, backplate 12 and seal seat II 8 terminal surface laminating are installed in the spacing groove 23 of axle sleeve 17, shaft coupling 13 is installed and is located axle sleeve 17 tip on the main shaft.
The fixed through hole I33 of the flange cover 4, the fixed through hole II 39 of the sealing seat I5 and the fixed through hole III 45 of the sealing seat II 8 are coaxial, and the flange cover 4, the sealing seat I5 and the sealing seat II 8 are connected and installed in a matched mode through bolts and the fixed through hole I33, the fixed through hole II 39 and the fixed through hole III 45.
The fluid inlet I40 and the fluid inlet II 44 are stepped holes.
The shaft sleeve 17 between the shaft shoulder III 20 and the shaft shoulder IV 21 is provided with a wear-resistant coating 34.
The diameter of the inner circumferential surface 27 inside the positioning cylinder 16 is the same as the diameter of the outer surface of the shoulder III 20 of the shaft sleeve 17.
Example 2: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 arranged on a working main shaft, and further comprises a front stop block1, 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 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; the shaft sleeve 17 is provided with a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 from one end to the other end, the shaft sleeve 17 is also provided with a limit groove 23, one end of the front stop block1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular chute 24 is arranged in the front stop block1, a positioning groove I26 is arranged in one end of the positioning cylinder 16, one end of the positioning cylinder 16 is installed in the rectangular chute 24 of the front stop block1, a positioning groove II 25 is arranged 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 in a Z-shaped structure with a cross section, the adjusting cylinder 15 is matched with the positioning groove II 25 of the positioning cylinder 16 through a fixed block I28 at one end of the adjusting cylinder and is positioned on the periphery of the shaft sleeve 17, a positioning groove I31 is arranged on the periphery of the comb sealing module I2, one end of the comb sealing module I2 is jointed with the fixed block II 29 of the adjusting cylinder 15, the other end of the comb sealing module I2 is internally provided with a mounting groove II 30, a pressure spring III 14 is positioned in the mounting groove II 30 of the comb 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 sealing module I2 is positioned at the periphery of the shaft sleeve 17, the comb sealing module I2 is arranged in the stepped hole I32, the pressure spring I3 is arranged in a cavity formed by the mounting groove I31 and the stepped hole II 32, the middle part of the end part of the flange cover 4 is provided with a positioning groove III 35, the sealing seat I5 is provided with a fixing through hole II 39, the middle part of one side of the sealing seat I5 is provided with a fixing boss 38, 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 at the side of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the mounting groove II 30 and the fixing boss 38, the fixing boss 38 is internally provided with a stepped hole II 37, the sealing seat I5 is provided with a fluid inlet hole I40, the middle part of the other side of the sealing seat I5 is provided with a stepped positioning groove 43, the other side of the sealing seat I5 is provided with a connecting groove I41, the fingertip sealing module I6 and the brush sealing module 7 are arranged on the shaft sleeve 17 in the stepped positioning groove 43, the fingertip sealing module I6 and the brush sealing module 7 are positioned on two sides of the fluid inlet hole I40, the sealing seat II 8 is provided with a fixing through hole III 45, one side of the sealing seat II 8 is provided with a connecting block 36, the middle part of one side of the sealing seat II 8 is provided with a positioning block 42, 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 on the other side of the sealing seat I5 in a matched manner through the connecting block 36 and the connecting groove I41, the locating piece 42 of seal seat II 8 is fixed a position and is installed in ladder constant head tank 43, open on seal seat II 8 has fluid to go into annotate hole II 44, seal seat II 8 inside has been seted up shoulder hole III 46, seal seat II 8 inside has been installed and has been located boss 47, fingertip seal module II 9 laminating location boss 47 is installed in shoulder hole III 46, the cooperation of comb tooth seal module II 10 and pressure spring II 11 is installed in shoulder hole III 46, fingertip seal module II 9, comb tooth seal module III 10 is located fluid and goes into annotate hole II 44 both sides, backplate 12 and seal seat II 8 terminal surface laminating are installed in the spacing groove 23 of axle sleeve 17, shaft coupling 13 is installed and is located axle sleeve 17 tip on the main shaft.
The fixed through hole I33 of the flange cover 4, the fixed through hole II 39 of the sealing seat I5 and the fixed through hole III 45 of the sealing seat II 8 are coaxial, and the flange cover 4, the sealing seat I5 and the sealing seat II 8 are connected and installed in a matched mode through bolts and the fixed through hole I33, the fixed through hole II 39 and the fixed through hole III 45.
The fluid inlet I40 and the fluid inlet II 44 are stepped holes.
The shaft sleeve 17 between the shaft shoulder III 20 and the shaft shoulder IV 21 is provided with a wear-resistant coating 34.
The fingertip sealing module I6 and the brush type sealing module 7 are replaced by two contact fingertip sealing modules I6 in the step positioning groove 43 of the sealing seat I5, and each contact fingertip sealing module I6 is respectively positioned at two sides of the fluid inlet hole I40.
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 diameter of the inner circumferential surface 27 inside the positioning cylinder 16 is the same as the diameter of the outer surface of the shoulder III 20 of the shaft sleeve 17.
Example 3: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 arranged on a working main shaft, and further comprises a front stop block1, 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 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; the shaft sleeve 17 is provided with a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 from one end to the other end, the shaft sleeve 17 is also provided with a limit groove 23, one end of the front stop block1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular chute 24 is arranged in the front stop block1, a positioning groove I26 is arranged in one end of the positioning cylinder 16, one end of the positioning cylinder 16 is installed in the rectangular chute 24 of the front stop block1, a positioning groove II 25 is arranged 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 in a Z-shaped structure with a cross section, the adjusting cylinder 15 is matched with the positioning groove II 25 of the positioning cylinder 16 through a fixed block I28 at one end of the adjusting cylinder and is positioned on the periphery of the shaft sleeve 17, a positioning groove I31 is arranged on the periphery of the comb sealing module I2, one end of the comb sealing module I2 is jointed with the fixed block II 29 of the adjusting cylinder 15, the other end of the comb sealing module I2 is internally provided with a mounting groove II 30, a pressure spring III 14 is positioned in the mounting groove II 30 of the comb 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 sealing module I2 is positioned at the periphery of the shaft sleeve 17, the comb sealing module I2 is arranged in the stepped hole I32, the pressure spring I3 is arranged in a cavity formed by the mounting groove I31 and the stepped hole II 32, the middle part of the end part of the flange cover 4 is provided with a positioning groove III 35, the sealing seat I5 is provided with a fixing through hole II 39, the middle part of one side of the sealing seat I5 is provided with a fixing boss 38, 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 at the side of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the mounting groove II 30 and the fixing boss 38, the fixing boss 38 is internally provided with a stepped hole II 37, the sealing seat I5 is provided with a fluid inlet hole I40, the middle part of the other side of the sealing seat I5 is provided with a stepped positioning groove 43, the other side of the sealing seat I5 is provided with a connecting groove I41, the fingertip sealing module I6 and the brush sealing module 7 are arranged on the shaft sleeve 17 in the stepped positioning groove 43, the fingertip sealing module I6 and the brush sealing module 7 are positioned on two sides of the fluid inlet hole I40, the sealing seat II 8 is provided with a fixing through hole III 45, one side of the sealing seat II 8 is provided with a connecting block 36, the middle part of one side of the sealing seat II 8 is provided with a positioning block 42, 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 on the other side of the sealing seat I5 in a matched manner through the connecting block 36 and the connecting groove I41, the locating piece 42 of seal seat II 8 is fixed a position and is installed in ladder constant head tank 43, open on seal seat II 8 has fluid to go into annotate hole II 44, seal seat II 8 inside has been seted up shoulder hole III 46, seal seat II 8 inside has been installed and has been located boss 47, fingertip seal module II 9 laminating location boss 47 is installed in shoulder hole III 46, the cooperation of comb tooth seal module II 10 and pressure spring II 11 is installed in shoulder hole III 46, fingertip seal module II 9, comb tooth seal module III 10 is located fluid and goes into annotate hole II 44 both sides, backplate 12 and seal seat II 8 terminal surface laminating are installed in the spacing groove 23 of axle sleeve 17, shaft coupling 13 is installed and is located axle sleeve 17 tip on the main shaft.
The fixed through hole I33 of the flange cover 4, the fixed through hole II 39 of the sealing seat I5 and the fixed through hole III 45 of the sealing seat II 8 are coaxial, and the flange cover 4, the sealing seat I5 and the sealing seat II 8 are connected and installed in a matched mode through bolts and the fixed through hole I33, the fixed through hole II 39 and the fixed through hole III 45.
The fluid inlet I40 and the fluid inlet II 44 are stepped holes.
The shaft sleeve 17 between the shaft shoulder III 20 and the shaft shoulder IV 21 is provided with a wear-resistant coating 34.
The fingertip sealing module I6 and the brush type sealing module 7 are replaced by two non-contact fingertip sealing modules I6 in the step positioning groove 43 of the sealing seat I5, and each non-contact fingertip sealing module I6 is respectively positioned at two sides of the fluid inlet injection hole I40.
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 diameter of the inner circumferential surface 27 inside the positioning cylinder 16 is the same as the diameter of the outer surface of the shoulder III 20 of the shaft sleeve 17.
Example 4: as shown in fig. 1-10, an experimental device for testing the performance of a sealing element comprises a shaft sleeve 17 arranged on a working main shaft, and further comprises a front stop block1, 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 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; the shaft sleeve 17 is provided with a shaft shoulder I18, a shaft shoulder II 19, a shaft shoulder III 20, a shaft shoulder IV 21 and a shaft shoulder V22 from one end to the other end, the shaft sleeve 17 is also provided with a limit groove 23, one end of the front stop block1 is positioned and installed on the shaft sleeve 17 through the shaft shoulder I18, a rectangular chute 24 is arranged in the front stop block1, a positioning groove I26 is arranged in one end of the positioning cylinder 16, one end of the positioning cylinder 16 is installed in the rectangular chute 24 of the front stop block1, a positioning groove II 25 is arranged 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 in a Z-shaped structure with a cross section, the adjusting cylinder 15 is matched with the positioning groove II 25 of the positioning cylinder 16 through a fixed block I28 at one end of the adjusting cylinder and is positioned on the periphery of the shaft sleeve 17, a positioning groove I31 is arranged on the periphery of the comb sealing module I2, one end of the comb sealing module I2 is jointed with the fixed block II 29 of the adjusting cylinder 15, the other end of the comb sealing module I2 is internally provided with a mounting groove II 30, a pressure spring III 14 is positioned in the mounting groove II 30 of the comb 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 sealing module I2 is positioned at the periphery of the shaft sleeve 17, the comb sealing module I2 is arranged in the stepped hole I32, the pressure spring I3 is arranged in a cavity formed by the mounting groove I31 and the stepped hole II 32, the middle part of the end part of the flange cover 4 is provided with a positioning groove III 35, the sealing seat I5 is provided with a fixing through hole II 39, the middle part of one side of the sealing seat I5 is provided with a fixing boss 38, 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 at the side of the flange cover 4 through the fixing boss 38, the pressure spring III 14 is placed in the cavity formed by the mounting groove II 30 and the fixing boss 38, the fixing boss 38 is internally provided with a stepped hole II 37, the sealing seat I5 is provided with a fluid inlet hole I40, the middle part of the other side of the sealing seat I5 is provided with a stepped positioning groove 43, the other side of the sealing seat I5 is provided with a connecting groove I41, the fingertip sealing module I6 and the brush sealing module 7 are arranged on the shaft sleeve 17 in the stepped positioning groove 43, the fingertip sealing module I6 and the brush sealing module 7 are positioned on two sides of the fluid inlet hole I40, the sealing seat II 8 is provided with a fixing through hole III 45, one side of the sealing seat II 8 is provided with a connecting block 36, the middle part of one side of the sealing seat II 8 is provided with a positioning block 42, 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 on the other side of the sealing seat I5 in a matched manner through the connecting block 36 and the connecting groove I41, the locating piece 42 of seal seat II 8 is fixed a position and is installed in ladder constant head tank 43, open on seal seat II 8 has fluid to go into annotate hole II 44, seal seat II 8 inside has been seted up shoulder hole III 46, seal seat II 8 inside has been installed and has been located boss 47, fingertip seal module II 9 laminating location boss 47 is installed in shoulder hole III 46, the cooperation of comb tooth seal module II 10 and pressure spring II 11 is installed in shoulder hole III 46, fingertip seal module II 9, comb tooth seal module III 10 is located fluid and goes into annotate hole II 44 both sides, backplate 12 and seal seat II 8 terminal surface laminating are installed in the spacing groove 23 of axle sleeve 17, shaft coupling 13 is installed and is located axle sleeve 17 tip on the main shaft.
The fixed through hole I33 of the flange cover 4, the fixed through hole II 39 of the sealing seat I5 and the fixed through hole III 45 of the sealing seat II 8 are coaxial, and the flange cover 4, the sealing seat I5 and the sealing seat II 8 are connected and installed in a matched mode through bolts and the fixed through hole I33, the fixed through hole II 39 and the fixed through hole III 45.
The fluid inlet I40 and the fluid inlet II 44 are stepped holes.
The shaft sleeve 17 between the shaft shoulder III 20 and the shaft shoulder IV 21 is provided with a wear-resistant coating 34.
The fingertip sealing module I6 is replaced by the brush sealing module 7 in the step positioning groove 43 of the sealing seat I5, and the two brush sealing modules 7 are respectively positioned at two sides of the fluid inlet injection hole I40.
The fingertip sealing module II 9 in the stepped hole III 46 of the sealing seat II 8 can be a non-contact fingertip sealing module II 9.
The diameter of the inner circumferential surface 27 inside the positioning cylinder 16 is the same as the diameter of the outer surface of the shoulder III 20 of the shaft sleeve 17.
Claims (5)
1. An experimental device for testing performance of a sealing element, which is characterized in that: the 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); the shaft sleeve (17) is provided with 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) from one end to the other end, the shaft sleeve (17) is also provided with a limiting groove (23), one end of the 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 the 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 cross section structure, the positioning groove II (25) of a fixed block I (28) at one end of the adjusting cylinder is matched with the positioning cylinder (16) to be located on the periphery of the shaft sleeve (17), a positioning groove I (31) is formed in the circumference of the comb tooth sealing module I (2), one end of the comb tooth sealing module I (2) is provided with a positioning groove II (30) and the other end of the adjusting cylinder (15) is located in the sealing module II (14), the flange cover (4) is L-shaped flange cover, fixed through hole I (33) is formed in the flange cover (4), stepped hole I (32) is formed in the L-shaped bottom of the flange cover (4), the labyrinth seal module I (2) is located at the periphery of the shaft sleeve (17), the labyrinth seal module I (2) is arranged in the stepped hole I (32), the pressure spring I (3) is arranged in a cavity formed by the arranging groove I (31) and the step Kong (32), the positioning groove III (35) is formed in the middle of the end part of the flange cover (4), the fixing through hole II (39) is formed in the sealing seat I (5), a fixing boss (38) is arranged in the middle of one side of the sealing seat I (5), the fixing boss (38) is located in the positioning groove III (35) of the flange cover (4), one side of the sealing seat I (5) is positioned at the side of the flange cover (4) through the fixing boss (38), the pressure spring III (14) is arranged in the cavity formed by the arranging groove II (30) and the fixing boss (38), the stepped hole II (37) is formed in the other side of the fixing boss (38), the sealing seat I (5) is provided with the fixing boss II (37), the sealing seat I (40) is provided with the other side of the sealing seat I (41), and the sealing seat I (41) is provided with the sealing seat I (41) The brush type sealing module (7) is arranged on the shaft sleeve (17) in the step positioning groove (43), the fingertip sealing module I (6) and the brush type sealing module (7) are arranged on two sides of the fluid inlet hole I (40), the fixing through hole III (45) is formed in the sealing seat II (8), the connecting block (36) is arranged on one side of the sealing seat II (8), the 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 on the other side of the sealing seat I (5) in a matched mode through the connecting block (36) and the connecting groove I (41), the positioning block (42) of the sealing seat II (8) is arranged in the step positioning groove (43), the fluid inlet hole II (44) is formed in the sealing seat II (8), the step hole III (46) is formed in the sealing seat II (8), the positioning boss (47) is arranged in the sealing seat II (8), the fingertip module II (9) is attached to the step hole III (46), the finger tip type sealing module II (9) is attached to the step hole III (46), the finger type sealing module II (10) is arranged in the step hole II (10), and the finger type sealing module II (10) is arranged in the step hole II (10) in the sealing module II (10), the end faces of the rear baffle plate (12) and the sealing seat II (8) are attached to the limit groove (23) of the shaft sleeve (17), and the coupler (13) is arranged on the main shaft and positioned at the end part of the shaft sleeve (17); the flange cover (4), the sealing seat I (5) and the sealing seat II (8) are connected with the fixing through hole I (33), the fixing through hole II (39) and the fixing through hole III (45) through bolts in a matched mode; two fingertip sealing modules I (6) can be arranged in the step positioning groove (43) of the sealing seat I (5), each fingertip sealing module I (6) is respectively positioned at two sides of the fluid inlet injection hole I (40), two brush type sealing modules (7) can be arranged in the step positioning groove (43) of the sealing seat I (5), and the two brush type sealing modules (7) are respectively positioned at two sides of the fluid inlet injection hole I (40); the diameter of the inner circumferential surface (27) inside 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).
2. The test rig for testing seal performance of claim 1, wherein: the fluid inlet injection holes I (40) and the fluid inlet injection holes II (44) are stepped holes.
3. The test rig for testing seal performance of claim 1, wherein: a wear-resistant coating (34) is arranged on the shaft sleeve (17) between the shaft shoulder III (20) and the shaft shoulder IV (21).
4. The test rig for testing seal performance of claim 1, wherein: 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).
5. The test rig for testing seal performance of claim 1, wherein: the fingertip sealing module I (6) and the fingertip sealing module II (9) can be contact fingertip sealing or non-contact fingertip sealing.
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