CN109297642A - The experimental rig and test method of sealing performance are driven for testing shield owner - Google Patents
The experimental rig and test method of sealing performance are driven for testing shield owner Download PDFInfo
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- CN109297642A CN109297642A CN201811464382.8A CN201811464382A CN109297642A CN 109297642 A CN109297642 A CN 109297642A CN 201811464382 A CN201811464382 A CN 201811464382A CN 109297642 A CN109297642 A CN 109297642A
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- outer ring
- fixed outer
- inner ring
- main driving
- seal assembly
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of experimental rigs that sealing performance is driven for testing shield owner, including fixed outer ring, rotation inner ring, revolving support and driving device, revolving support is fixed in one end of fixed outer ring, rotation inner ring is placed in fixed outer ring, and the inner end for rotating inner ring is fixedly connected with the temperature of inner ring during rotation of revolving support;Fixed outer ring includes the fixation outer ring leading portion being detachably connected and fixed outer ring back segment, rotates the front side cavity and rear side cavity being respectively formed between the outer wall of inner ring and fixed outer ring leading portion and the inner wall of fixed outer ring back segment for the first and second main driving seal assembly to be measured to be arranged.The present invention injects the medium with pressure by the inlet of medium injection ring, the pressure-resistant performance of static state of main driving sealing system can be tested, the frictional heating amount of main driving sealing system in the case of different rotating speeds can be tested again, and the dynamic pressure resistance performance that main driving seals at various pressures, have many advantages, such as it is simple for structure, it is convenient test, comprehensive.
Description
Technical field
The present invention relates to shield owners to drive sealing performance detection technique field, particularly relates to a kind of for testing
The experimental rig and test method of shield owner driving sealing performance.
Background technique
Currently, domestic more and more using the Tunnel Project of shield machine construction, the operating condition encountered is varied, actually makes
Also occasionally there is generation with the case where in the process, main driving seal failure causes project to lose, causes damages to engineering project, especially exist
High hydraulic pressure, long distance construction engineering in problem than more prominent.Once seal failure situation occurs, because of shield machine structure size etc.
Problem, more change owner driving sealing is extremely difficult in hole, or even can not be achieved, can only excavating shaft again after strengthening stratum, allow
Shield machine main body is exposed in vertical shaft, then the replacement being sealed, shadow not only at high cost but also to the duration are dismantled to shield machine
Sound is very serious, and construction risk is also larger.
Known shield owner is several under driving the form of seal failure to common are: sealing abrasion itself and sealing
Contact surface abrasion, temperature height causes sealing to melt, underground water is containing corrosivity etc..Therefore, for high hydraulic pressure, long distance construction
Project, selecting outstanding shield owner to drive sealing system, it is very important.
Summary of the invention
For common main driving seal failure form, the present invention provides one kind to drive sealing for testing shield owner
The experimental rig and test method of performance, can simulate different operating conditions, test the structure, material, performance of sealing system,
To select suitable sealing system for different operating conditions.
The present invention is to solve technical solution used by its technical problem: one kind is close for testing shield owner driving
The experimental rig of sealing property, including fixed outer ring, rotation inner ring, revolving support and driving device, which, which has, fixes
Outer ring and the temperature of inner ring during rotation being placed in the fixation outer ring, one end of the fixed outer ring is fixed in the fixation outer ring of the revolving support
Interior, the rotation inner ring is placed in the fixed outer ring, and the temperature of inner ring during rotation of the inner end of the rotation inner ring and the revolving support is solid
Fixed connection, the driving device, which is placed in outside one end of the fixed outer ring and is driven with the temperature of inner ring during rotation of the revolving support, to be connected
It connects, the driving device can drive the rotation inner ring in the fixed outer ring by the temperature of inner ring during rotation of the revolving support
Rotation;The fixed outer ring includes the fixation outer ring leading portion being detachably connected and fixes outer ring back segment, described to rotate the outer of inner ring
The front side cavity for the first main driving seal assembly to be measured to be arranged, institute are formed between wall and the inner wall of the fixed outer ring leading portion
It states after being formed between the outer wall and the fixed outer ring back segment of rotation inner ring for the second main driving seal assembly to be measured to be arranged
Side cavity;Several radial lubricating oil injection holes are offered respectively on the fixed outer ring leading portion and fixed outer ring back segment to be connected to
It is respectively equipped with sensor mounting hole on the front side cavity and rear side cavity, the rotation inner ring and fixed outer ring leading portion, the biography
Temperature sensor for detecting sealing contact surface temperature change is installed in sensor mounting hole;The fixed outer ring leading portion and solid
Determine to be equipped with medium injection ring between outer ring back segment, which is equipped with several radial medium injection holes;The fixation
It is fixed with the outer ring end cap of annular on the outer end face of outer ring leading portion, there is slit between the outer ring end cap and the rotation inner ring,
The slit forms the first outlet of front side cavity;The fixed outer ring back segment is equipped with several radial apertures, and it is empty to form rear side
The second outlet of chamber.
As a further improvement of the present invention, the driving device is drive motor, and the output shaft end of the drive motor is pacified
Equipped with driving gear, the temperature of inner ring during rotation of the revolving support is equipped with internal tooth, the driving gear of the drive motor and the rotation
The interior tooth engagement of inner ring connects.
As a further improvement of the present invention, the temperature sensor fixing hole is set to the fixed outer ring and rotation inner ring
On the first main driving seal assembly to be measured and the second main rubbing surface for driving seal assembly to be measured.
As a further improvement of the present invention, the described first main driving seal assembly to be detected and the second main driving to be detected
Seal assembly is installed by stress surface is opposite.
As a further improvement of the present invention, the rotation inner ring passes through the rotation of inner ring connecting plate and the revolving support
Inner ring is fixedly connected.
The present invention also provides the test methods that a kind of shield owner drives sealing performance, are carried out by above-mentioned experimental rig
Test, the test method the following steps are included:
Step 1, the first main driving seal assembly to be detected and are installed respectively in the front side cavity and rear side cavity
Two main driving seal assemblies to be detected, and the installation temperature respectively in the rotation inner ring and the sensor mounting hole of fixed outer ring
Sensor is spent, installation second is to be detected in the first main driving seal assembly and rear side cavity to be measured of installation in the front side cavity
Detection cavity is collectively formed after main driving seal assembly;
Step 2, from lubricating oil injection hole to the described first main driving seal assembly to be detected and the second main driving to be detected
Lubricating oil needed for seal assembly injection;
Step 3, the medium with pressure is filled into the detection cavity from the medium injection hole on medium injection ring;
Step 4, be arranged and record the different revolving speed of drive motor with change rotation inner ring revolving speed, observation first outlet and
Second outlet, judges whether the first main driving seal assembly to be detected and the second main driving seal assembly to be detected leak, simultaneously
Record the temperature value of temperature sensor measurement.
As a further improvement of the present invention, in the step 3, change the medium and note injected in medium injection hole
The pressure medium entered repeats the step 4.
As a further improvement of the present invention, the medium of the injection be oil-containing in water or water, salt, corrosive substance and
At least one of mixture of mud.
As a further improvement of the present invention, in the step 4, the drive motor is set and is not rotated, can detecte
The sealing pressure resistance performance of first main driving seal assembly to be detected or the second main driving seal assembly to be detected under static state;
Or setting drive motor rotates, and detects the first main driving seal assembly to be detected or the second main driving seal assembly to be detected is revolving
Turn the sealing pressure resistance performance under state.
The beneficial effects of the present invention are: the present invention injects the medium with pressure by the inlet of medium injection ring, it can
The pressure-resistant performance of static state of main driving sealing system is tested, and different rotating speeds situation can be tested by the revolving speed of adjusting drive motor
The frictional heating amount of lower main driving sealing system, and the dynamic pressure resistance performance of main driving sealing at various pressures.In addition,
By rotating for a long time, the abrasion condition of itself and sealing contact surface of main driving sealing can be checked, determine main driving sealing
The endurance quality of system, and by injecting different media, it is each under the influence of different medium that sealing system can be tested
Performance, have many advantages, such as it is simple for structure, it is convenient test, comprehensive.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is partial structural diagram of the present invention.
In conjunction with attached drawing, make the following instructions:
1 --- fixed outer ring;2 --- revolving support;
3 --- driving device;4 --- fixed outer ring leading portion;
5 --- fixed outer ring back segment;6 --- rotation inner ring;
7 --- front side cavity;8 --- rear side cavity;
9 --- lubricating oil injection hole;10 --- sensor mounting hole;
11 --- temperature sensor 12 --- medium injection rings;
13 --- medium injection hole;14 --- outer ring end cap;
15 --- first outlet;16 --- second outlet;
17 --- inner ring connecting plate;
101 --- the first main driving seal assembly to be measured;
102 --- the second main driving seal assembly to be measured.
Specific embodiment
Below in conjunction with attached drawing, elaborate to a preferred embodiment of the invention.But protection scope of the present invention is not
Be limited to following embodiments, i.e., in every case with simple equivalence changes made by scope of the present invention patent and description with repair
Decorations, all still belong within the invention patent covering scope.
It refering to fig. 1-2, is a kind of experimental rig that sealing performance is driven for testing shield owner of the present invention, packet
Fixed outer ring 1, rotation inner ring 6, revolving support 2 and driving device 3 are included, which, which has fixed outer ring and be placed in this, fixes
Temperature of inner ring during rotation in outer ring, the fixation outer ring of the revolving support are fixed in one end of the fixed outer ring, the rotation inner ring
It is placed in the fixed outer ring, the inner end of the rotation inner ring is fixedly connected with the temperature of inner ring during rotation of the revolving support, the driving
Device is placed in outside one end of the fixed outer ring and is sequentially connected with the temperature of inner ring during rotation of the revolving support, the driving device energy
Enough the rotation inner ring is driven to rotate in the fixed outer ring by the temperature of inner ring during rotation of the revolving support.
The fixed outer ring includes the fixation outer ring leading portion 4 being detachably connected and fixed outer ring back segment 5, the rotation inner ring
Outer wall and the fixed outer ring leading portion inner wall between formed for be arranged first it is to be measured it is main drive seal assembly 101 front side
Cavity 7 is formed between the outer wall and the fixed outer ring back segment of the rotation inner ring for the second main driving sealing to be measured to be arranged
The rear side cavity 8 of component 102.
Several radial lubricating oil injection holes 9 are offered respectively on the fixed outer ring leading portion and fixed outer ring back segment to be connected to
To the front side cavity and rear side cavity, it is respectively equipped with sensor mounting hole 10 on the rotation inner ring and fixed outer ring leading portion,
Temperature sensor 11 for detecting sealing contact surface temperature change is installed in the sensor mounting hole.
It is equipped with medium injection ring 12 between the fixed outer ring leading portion and fixed outer ring back segment, which is equipped with
Several radial medium injection holes 13.
The outer ring end cap 14 of annular, the outer ring end cap and the rotation are fixed on the outer end face of the fixed outer ring leading portion
There is slit, which forms the first outlet 15 of front side cavity between inner ring;If the fixed outer ring back segment is equipped with trunk diameter
To aperture, formed rear side cavity second outlet 16.
Wherein, the driving device is drive motor, and the output shaft end of the drive motor is equipped with driving gear, described time
The temperature of inner ring during rotation for turning support is equipped with internal tooth, and the driving gear of the drive motor is connect with the interior tooth engagement of the temperature of inner ring during rotation.
Wherein, temperature sensor fixing hole is set to the fixed outer ring and rotation inner ring and the first main driving sealing group to be measured
On the rubbing surface of part and the second main driving seal assembly to be measured.
Wherein, the described first main driving seal assembly to be detected and the second main driving seal assembly to be detected press stress surface phase
To installation.
Wherein, the rotation inner ring is fixedly connected by inner ring connecting plate 17 with the temperature of inner ring during rotation of the revolving support.
A kind of shield owner drives the test method of sealing performance, is tested using above-mentioned experimental rig, including with
Lower step:
Step 1, the first main driving seal assembly to be detected and are installed respectively in the front side cavity and rear side cavity
Two main driving seal assemblies to be detected, and the installation temperature respectively in the rotation inner ring and the sensor mounting hole of fixed outer ring
Sensor is spent, installation second is to be detected in the first main driving seal assembly and rear side cavity to be measured of installation in the front side cavity
Detection cavity is collectively formed after main driving seal assembly;
Step 2, from lubricating oil injection hole to the described first main driving seal assembly to be detected and the second main driving to be detected
Lubricating oil needed for seal assembly injection;
Step 3, the medium with pressure is filled into the detection cavity from the medium injection hole on medium injection ring;
Step 4, be arranged and record the different revolving speed of drive motor with change rotation inner ring revolving speed, observation first outlet and
Second outlet, judges whether the first main driving seal assembly to be detected and the second main driving seal assembly to be detected leak, simultaneously
Record the temperature value of temperature sensor measurement.
Wherein, in the step 3, change the pressure medium of the medium and injection that inject in medium injection hole, then weigh
The multiple step 4, can detecte the first main driving seal assembly to be detected and the second main driving seal assembly to be detected in difference
In the case where medium, different rotating speeds and different pressures, whether the amount of heat and sealing system generated with contact surface friction is let out
Leakage.
The medium injected can be the mixture of oil-containing, salt, corrosive substance and mud in water or water etc..
In the step 4, drive motor can be set and do not rotate, can detecte the first main driving seal assembly to be detected or
The sealing pressure resistance performance of second main driving seal assembly to be detected under static state;Or setting drive motor rotates, detection the
The sealing pressure resistance performance of one main driving seal assembly to be detected or the second main driving seal assembly to be detected under rotation status.
The experimental rig and test method can also test after sealing system works long hours in varied situations to sealing
The abrasion condition of contactor, can also be according to the adjusting in the sealing system of different structure form progress size, structure, for each
The test of kind sealing system.
Operating condition when specific test is as follows: ground water pressure x Mpa, equipment revolving speed yrpm/min, it is contemplated that total run time z is small
When, sealing material allows q DEG C of maximum operating temperature.In test process, according to the design requirement of sealing system, infused by lubricating oil
Enter hole 9 and inject lubricating grease, so that the operating pressure of sealing system is reached x Mpa, and connect by the sealing of temperature sensor METHOD FOR CONTINUOUS DETERMINATION
The temperature change of contacting surface.Medium injection hole injected media is water.Pilot project is arranged as follows:
Pilot project 1: when static, at hydraulic pressure x Mpa, whether sealing is leaked.
Pilot project 2: when rotation, in the case where hydraulic pressure x Mpa, revolving speed y rpm/min, whether sealing is leaked.
Pilot project 3: it is continuously run in the case where hydraulic pressure x Mpa, revolving speed y rpm/min, the temperature of sealing contact surface
Whether q DEG C is higher than.
Pilot project 4: after operation z hours, whether sealing system is leaked, and measures the mill of sealing and sealing contact surface
Damage amount is how many.
Pilot project 5: when static, being stepped up hydraulic pressure, until sealing system leaks, is repeatedly averaged after measurement
Value, the limit quiescent operation pressure as sealing system.
According to above test result, it is possible to determine that whether the structure of sealing, material, properties meet requirement.
It can be seen that the present invention injects the medium with pressure by the inlet of medium injection ring, main driving can be tested
Performance that the static state of sealing system is pressure-resistant, and can be by the revolving speed of adjusting drive motor, main driving is close in the case of testing different rotating speeds
The frictional heating amount of envelope system, and the dynamic pressure resistance performance of main driving sealing at various pressures.In addition, by prolonged
Rotation can check the abrasion condition of itself and sealing contact surface of main driving sealing, determine the durability of main driving sealing system
Can, and by injecting different media, properties of sealing system under the influence of different medium can be tested, there is knot
Structure is succinct, convenient test, it is comprehensive the advantages that.
Claims (9)
1. a kind of experimental rig for driving sealing performance for testing shield owner, it is characterised in that: including fixed outer ring (1),
Inner ring (6), revolving support (2) and driving device (3) are rotated, which has fixed outer ring and be placed in the fixation outer ring
Temperature of inner ring during rotation, the fixation outer ring of the revolving support is fixed in one end of the fixed outer ring, and the rotation inner ring is placed in institute
It states in fixed outer ring, the inner end of the rotation inner ring is fixedly connected with the temperature of inner ring during rotation of the revolving support, and the driving device is set
It is sequentially connected in outside one end of the fixed outer ring and with the temperature of inner ring during rotation of the revolving support, the driving device can pass through
The temperature of inner ring during rotation of the revolving support drives the rotation inner ring to rotate in the fixed outer ring;The fixed outer ring includes can
The fixation outer ring leading portion (4) of dismantling connection and fixed outer ring back segment (5), before the outer wall and the fixed outer ring of the rotation inner ring
The front side cavity (7) for the first main driving seal assembly (101) to be measured to be arranged, the rotation inner ring are formed between the inner wall of section
Outer wall and the fixed outer ring back segment between formed for be arranged second it is to be measured it is main drive seal assembly (102) rear side cavity
(8);Several radial lubricating oil injection holes (9) are offered respectively on the fixed outer ring leading portion and fixed outer ring back segment to be connected to
Sensor mounting hole (10) are respectively equipped on the front side cavity and rear side cavity, the rotation inner ring and fixed outer ring leading portion,
Temperature sensor (11) for detecting sealing contact surface temperature change is installed in the sensor mounting hole;The fixed outer ring
Medium injection ring (12) are equipped between leading portion and fixed outer ring back segment, which is equipped with several radial medium injections
Hole (13);The outer ring end cap (14) of annular, the outer ring end cap and the rotation are fixed on the outer end face of the fixed outer ring leading portion
Turn that there is slit between inner ring, which forms the first outlet (15) of front side cavity;If the fixed outer ring back segment is equipped with
Trunk diameter to aperture, formed rear side cavity second outlet (16).
2. the experimental rig according to claim 1 for driving sealing performance for testing shield owner, it is characterised in that: institute
Stating driving device is drive motor, and the output shaft end of the drive motor is equipped with driving gear, in the rotation of the revolving support
Circle is equipped with internal tooth, and the driving gear of the drive motor is connect with the interior tooth engagement of the temperature of inner ring during rotation.
3. the experimental rig according to claim 2 for driving sealing performance for testing shield owner, it is characterised in that: institute
State temperature sensor fixing hole set on the fixed outer ring and rotation inner ring and the first main driving seal assembly to be measured and second to
It surveys on the rubbing surface of main driving seal assembly.
4. the experimental rig according to claim 3 for driving sealing performance for testing shield owner, it is characterised in that: institute
The first main driving seal assembly to be detected and the second main driving seal assembly to be detected is stated to install by stress surface is opposite.
5. the experimental rig according to claim 4 for driving sealing performance for testing shield owner, it is characterised in that: institute
Rotation inner ring is stated to be fixedly connected by inner ring connecting plate (17) with the temperature of inner ring during rotation of the revolving support.
6. a kind of shield owner drives the test method of sealing performance, tested by the experimental rig described in claim 5,
It is characterized in that, the test method the following steps are included:
Step 1, installed respectively in the front side cavity and rear side cavity the first main driving seal assembly to be detected and second to
Main driving seal assembly is detected, and in the rotation inner ring and the sensor mounting hole of fixed outer ring temperature is installed respectively and passes
Sensor, the front side cavity the first main driving seal assembly and rear side cavity to be measured of interior installation is interior to install the second main drive to be detected
Detection cavity is collectively formed after dynamic sealing assembly;
Step 2, it is sealed from lubricating oil injection hole to the main driving to be detected of the described first main driving seal assembly to be detected and second
Lubricating oil needed for component injection;
Step 3, the medium with pressure is filled into the detection cavity from the medium injection hole on medium injection ring;
Step 4, it is arranged and records the different revolving speed of drive motor to change the revolving speed of rotation inner ring, observes first outlet and second
Outlet, judges whether the first main driving seal assembly to be detected and the second main driving seal assembly to be detected leak, records simultaneously
The temperature value of temperature sensor measurement.
7. test method according to claim 6, it is characterised in that: in the step 3, change note in medium injection hole
The pressure medium of the medium and injection that enter repeats the step 4.
8. test method according to claim 7, it is characterised in that: the medium of the injection be oil-containing in water or water,
Salt, corrosive substance and at least one of mixture of mud.
9. test method according to claim 7, it is characterised in that: in the step 4, the drive motor is arranged not
Rotation can detecte the first main driving seal assembly to be detected or the second main driving seal assembly to be detected under static state
Seal pressure-resistant performance;Or setting drive motor rotates, and detects the first main driving seal assembly to be detected or the second main drive to be detected
Sealing pressure resistance performance of the dynamic sealing assembly under rotation status.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811464382.8A CN109297642A (en) | 2018-12-03 | 2018-12-03 | The experimental rig and test method of sealing performance are driven for testing shield owner |
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CN201811464382.8A CN109297642A (en) | 2018-12-03 | 2018-12-03 | The experimental rig and test method of sealing performance are driven for testing shield owner |
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ID=65142377
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CN201811464382.8A Pending CN109297642A (en) | 2018-12-03 | 2018-12-03 | The experimental rig and test method of sealing performance are driven for testing shield owner |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110243546A (en) * | 2019-07-18 | 2019-09-17 | 中国铁建重工集团股份有限公司 | Articulated sealing test bed of heading machine |
CN111947857A (en) * | 2020-09-03 | 2020-11-17 | 中船重型装备有限公司 | Shield machine main drive sealing air tightness detection method |
CN113639929A (en) * | 2021-07-30 | 2021-11-12 | 扬州地龙机械有限公司 | Shield constructs owner bearing sealing system sealing performance test device |
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CN108868793A (en) * | 2018-09-17 | 2018-11-23 | 中国铁建重工集团有限公司 | A kind of shield owner driving high pressure sealing system and a kind of slurry balance shield machine |
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CN208953207U (en) * | 2018-12-03 | 2019-06-07 | 江苏凯宫隧道机械有限公司 | The experimental rig of sealing performance is driven for testing shield owner |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110243546A (en) * | 2019-07-18 | 2019-09-17 | 中国铁建重工集团股份有限公司 | Articulated sealing test bed of heading machine |
CN110243546B (en) * | 2019-07-18 | 2024-04-23 | 中国铁建重工集团股份有限公司 | Articulated sealing test bed of heading machine |
CN111947857A (en) * | 2020-09-03 | 2020-11-17 | 中船重型装备有限公司 | Shield machine main drive sealing air tightness detection method |
CN111947857B (en) * | 2020-09-03 | 2022-05-03 | 中船重型装备有限公司 | Shield machine main drive seal air tightness detection method |
CN113639929A (en) * | 2021-07-30 | 2021-11-12 | 扬州地龙机械有限公司 | Shield constructs owner bearing sealing system sealing performance test device |
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