CN108709728A - Eccentric contract performance test apparatus - Google Patents
Eccentric contract performance test apparatus Download PDFInfo
- Publication number
- CN108709728A CN108709728A CN201810510944.1A CN201810510944A CN108709728A CN 108709728 A CN108709728 A CN 108709728A CN 201810510944 A CN201810510944 A CN 201810510944A CN 108709728 A CN108709728 A CN 108709728A
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- Prior art keywords
- babinet
- eccentric contract
- chamber
- test apparatus
- eccentric
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Classifications
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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
- G01M13/00—Testing of machine parts
-
- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
The disclosure provides a kind of eccentric contract performance test apparatus, including：Babinet and transmission shaft component, babinet have the test cavity for sealing against each other isolation and support chamber；Transmission shaft component passes through the support chamber and coordinates with the body pivot, and one end of the transmission shaft component is used to be located at the eccentric contract testpieces in the test cavity with one and connect, and the other end is for connecting dynamical system.The rotation of eccentric contract testpieces is driven by transmission shaft component, carry out Oil-gas Separation, eccentric contract testpieces is located in test cavity when experiment, transmission shaft component is mounted in support chamber, test cavity and support chamber seal against each other isolation, so that the experimental enviroment in test cavity is identical with actual working environment of the eccentric contract in aero-engine, the performance of eccentric contract can be accurately detected.
Description
Technical field
This disclosure relates to aero-engine technology field, in particular to a kind of eccentric contract performance test apparatus.
Background technology
Eccentric contract is the important component in Aero-Engine Lubrication System, is typically mounted in bearing bore ventilation path,
Extend the flight time, while may be used also mainly for separating of the lubricating oil in ventilation path oil-gas two-phase flow to reduce lube use rate
Mitigate pollution of the mist of oil to environment.
The pressure loss and oil-gas separation efficiency are two leading indicators for weighing eccentric contract performance, pressure loss relationship
It is pressed to bearing bore chamber and obturages effect, oil-gas separation efficiency is then related to lube use rate.Due to can not be in aero-engine
Directly measure the performance of eccentric contract, it is therefore desirable to test the performance of eccentric contract by testing.
Currently, not yet specifically for the experimental rig of eccentric contract, therefore there is an urgent need for exploitation one kind for detecting centrifugation
The experimental rig of ventilator performance.
It should be noted that information is only used for reinforcing the reason to the background of the disclosure disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Invention content
The disclosure is designed to provide a kind of eccentric contract performance test apparatus, and real simulation eccentric contract is navigating
Operating mode in empty engine, to detect the performance of eccentric contract.
According to one aspect of the disclosure, a kind of eccentric contract performance test apparatus is provided, including：
Babinet has the test cavity for sealing against each other isolation and support chamber；
Transmission shaft component passes through the support chamber and coordinates with the body pivot, and one end of the transmission shaft component is used
It is connect in the eccentric contract testpieces in the test cavity, the other end is for connecting dynamical system.
According to an embodiment of the disclosure, it is provided with partition component in the babinet, the partition component is by the case
Body inner space is divided into test cavity and support chamber.
Further include first bearing holder assembly and second bearing holder assembly according to an embodiment of the disclosure；
First through hole is provided on the support cavity outer wall, it is logical that the first bearing holder assembly is sealingly mounted at described first
In hole；
The second through-hole is provided on the partition component, the second bearing holder assembly is sealingly mounted at second through-hole
It is interior；
The transmission shaft component is mounted on the case by the first bearing holder assembly and the second bearing holder assembly
On body.
According to an embodiment of the disclosure, the second bearing holder assembly includes：
Second bearing seat is mounted in second through-hole；
Second bearing gland is connected positioned at the support intracavitary portion with the second bearing seat；
Second end cover is located at outside the support chamber and is connected with the second bearing seat, second end cover
On be provided with centre bore, second seal, second end cover and the eccentric contract are provided in the centre bore
Testpieces is sealed by the second seal.
According to an embodiment of the disclosure, the second seal is that magnetism obturages ring.
According to an embodiment of the disclosure, offer mist of oil import and air intlet on the babinet, the mist of oil into
Mouth and the air intlet are connected to the test cavity respectively.
According to an embodiment of the disclosure, the position on the babinet corresponding to test cavity is provided with the survey of the first chamber temperature detector
Connector and the first chamber press detection tabs, and the first chamber temperature detection tabs are for connecting temperature-detecting device, the first chamber pressure
Detection tabs are for connecting pressure-detecting device；
It is supported on the babinet and offers fuel-tank vent and the second chamber temperature detection tabs, the oil on the corresponding position of chamber
Case ventilation opening is connected to the support chamber, and the second chamber temperature detection tabs with temperature-detecting device for connecting；
Vibration measuring seat is provided on the babinet, the vibration measuring seat is for connecting vibration detection device.
According to an embodiment of the disclosure, the bottom of box offers the first receipts oilhole and second receives oilhole, described
First receipts oilhole is connected to the test cavity, and the second receipts oilhole is connected to the support chamber.
According to an embodiment of the disclosure, gas vent is provided on the babinet, the gas vent and the centrifugation are logical
Wind device testpieces centre bore is connected to, and is vented for the eccentric contract testpieces；
First end cover is installed at the gas vent, is arranged between the first end cover and eccentric contract testpieces
There is first seal.
According to an embodiment of the disclosure, the babinet includes the first babinet and the second babinet being tightly connected.
The eccentric contract performance test apparatus of the disclosure drives eccentric contract testpieces to turn by transmission shaft component
It is dynamic, carry out Oil-gas Separation, eccentric contract testpieces is located in test cavity when experiment, and transmission shaft component, which is mounted on, to be supported in chamber,
Test cavity and support chamber seal against each other isolation so that the experimental enviroment and eccentric contract in test cavity are in aero-engine
Actual working environment is identical, can accurately detect the performance of eccentric contract.
During the test, opposite case will be rotated transmission shaft component, it is therefore desirable to be lubricated, lubricating oil is propping up
Intracavitary is supportted, supports chamber and test cavity to seal against each other isolation, avoids lubricating oil and enter test cavity, is mixed into experiment mist of oil, influences
Test result improves the accuracy of eccentric contract performance test results.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The disclosure can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.It should be evident that the accompanying drawings in the following description is only the disclosure
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 schematically shows the three-dimensional structure diagram of eccentric contract performance test apparatus.
Fig. 2 schematically shows the right view of eccentric contract performance test apparatus.
Fig. 3 schematically shows the sectional view along A-A of eccentric contract performance test apparatus.
Fig. 4 schematically shows the B-B direction sectional view of eccentric contract performance test apparatus.
Fig. 5 schematically shows the vertical view of eccentric contract performance test apparatus.
In figure：
1, babinet；11, test cavity；12, chamber is supported；101, the first chamber presses detection tabs；102, the first chamber temperature detection tabs；
103, mist of oil import；104, air intlet；105, vibration measuring seat；106, the second chamber temperature detection tabs；107, fuel-tank vent；108,
First receives oilhole；109, bearing oil supplying hole；110, second oilhole is received；111, the first end cover；112, gasket；113, it is vented
Hole；114, first seal；115, connector is lifted；
201, first bearing seat；202, oil sealing cap；203, first bearing gland；
301, second bearing seat；302, second bearing gland；303, spring base；304, the second end cover；305, spring；
306, second seal；4, eccentric contract testpieces；
501, transmission shaft；502, first bearing；503, first jet ring；504, spacer sleeve；505, second nozzle ring；506,
Second bearing；507, locking nut.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Identical attached drawing in figure
Label indicates same or similar structure, thus will omit their detailed description.
Although the term of relativity, such as "upper" "lower" is used to describe a component of icon for another in this specification
The relativeness of one component, but these terms are in this manual merely for convenient, for example, with reference to the accompanying drawings described in show
The direction of example.It is appreciated that, if making it turn upside down the device overturning of icon, the component described in "upper" will
As in the component of "lower".When certain structure is in other structures "upper", it is possible to refer to that certain structural integrity is formed in other structures
On, or refer to " direct " setting of certain structure in other structures, or refer to certain structure and be arranged in other knots by the way that another structure is " indirect "
On structure.
Term "one", " one ", "the", " described " to indicate there are one or more elements/component part/etc.；With
Language " comprising " and " having " is indicating the open meaning being included and refer to element/composition portion in addition to listing
Also may be present except divide/waiting other element/component part/etc.；Term " first ", " second " only use as label, are not
Quantity limitation to its object.
A kind of eccentric contract performance test apparatus is provided in this example embodiment, as shown in FIG. 1 to 3, centrifugation
Ventilator performance experimental rig, including babinet 1 and transmission shaft component：
Babinet 1 has the test cavity 11 for sealing against each other isolation and support chamber 12；Transmission shaft component pass through support chamber 12 and with
Babinet 1 is rotatably assorted, and one end of transmission shaft component is used to connect with the eccentric contract testpieces 4 in the test cavity 11
It connects, the other end is for connecting dynamical system.
Drive transmission shaft component rotation, transmission shaft that eccentric contract testpieces 4 is driven to rotate by dynamical system, separation examination
Test the mist of oil in chamber 11, the process of lubricating oil of the simulation eccentric contract in aero-engine in separation oil and gas two phase flow.
Support chamber 12 can be cube structure or cylindrical-shaped structure, still, in order to which guarantee test environment and centrifugation are logical
The actual working environment of wind device is identical, and the shape of test cavity 11 needs and real work of the eccentric contract in engine crankcase
Spatial form is same or similar.
The eccentric contract performance test apparatus of the disclosure drives 4 turns of eccentric contract testpieces by transmission shaft component
It is dynamic, carry out Oil-gas Separation, eccentric contract testpieces 4 is located in test cavity 11 when experiment, and transmission shaft component is mounted on support chamber
In 12, test cavity 11 and support chamber 12 seal against each other isolation so that experimental enviroment and eccentric contract in test cavity 11 are navigating
Actual working environment in empty engine is identical, ensure that eccentric contract performance test apparatus can accurately test centrifugation ventilation
Device performance.
During the test, opposite case 1 will be rotated transmission shaft component, it is therefore desirable to be lubricated, lubricating oil exists
It supports in chamber 12, supports chamber 12 and test cavity 11 to seal against each other isolation, avoid lubricating oil and enter test cavity 11, be mixed into experiment oil
In mist, test result is influenced, improves the accuracy of eccentric contract performance test results.
As shown in Figure 3 and Figure 4, it is provided with partition component 13 in babinet 1, which divides 1 inner space of babinet
It is divided into test cavity 11 and support chamber 12.
Wherein, one end of transmission shaft component is pierced by barrier assembly 13, and the other end is pierced by 1 outer wall of babinet, transmission shaft component and
Barrier assembly is tightly connected, with the seal isolation effect of guarantee test chamber 11 and support chamber 12.
It is exemplary, barrier assembly 13 can be with 1 integrally formed partition board of babinet, or by weld etc. modes connect
Partition board on babinet 1 can also be other partition components being tightly connected with babinet 1.
As shown in figure 3, the eccentric contract performance test apparatus that the disclosure provides further includes first bearing holder assembly and the
Two bearing bracket component；
It is provided with first through hole on support 12 outer wall of chamber, first bearing holder assembly is sealingly mounted in first through hole；Separate
The second through-hole is provided on component, second bearing holder assembly is sealingly mounted in the second through-hole；Transmission shaft component passes through first axle
Bearing component and second bearing holder assembly are fixedly mounted on babinet 1.
Wherein, first through hole and the coaxial arrangement of the second through-hole, first bearing holder assembly is fixed by bolt and babinet 1 to be connected
It connects, in order to ensure the leakproofness of connection, sealing ring can be installed in junction.
First bearing holder assembly includes：First bearing seat 201, oil sealing cap 202 and first bearing gland 203, first bearing
Seat 201 is mounted in first through hole, and the flange of protrusion is provided in first bearing seat 201, connecting hole, spiral shell are provided on the flange
Bolt connects first bearing seat 201 and babinet 1 across connecting hole.First bearing 502 is installed in first bearing seat 201, first
Bearing gland 203 is located at support intracavitary 12 and first bearing seat 201 is bolted.Oil sealing cap 202 is located at 1 outside of babinet,
It is bolted with first bearing seat 201.
Second bearing holder assembly includes：Second bearing seat 301, second bearing gland 302 and the second end cover 304, the
Two bearing bracket 301 is mounted in the second through-hole, and when installation can coat on the contact surface of second bearing seat 301 and the second through-hole
Fluid sealant；Second bearing gland 302 is located at 12 inside of support chamber and second bearing seat 301 connects；Second end cover 304 is located at
11 inside of test cavity and second bearing seat 301 connect, and centre bore is provided on second end cover 304, is arranged in centre bore
There are second seal 306, the second end cover 304 and eccentric contract testpieces 4 to be sealed by second seal 306.
Second bearing holder assembly further includes spring 305 and spring base 303, and spring 305 and spring base 303 are mounted on the second axis
The inside of bearing 301, for being pre-tightened to the second bearing 506 in second bearing seat 301.
Preferably, second seal 306 is that magnetism obturages ring.
Transmission shaft component includes transmission shaft 501, spacer sleeve 504, first bearing 502, second bearing 506, first jet ring
503 and second nozzle ring 505；First bearing 502 is mounted in first bearing seat 201, and second bearing 506 is mounted on second bearing
On seat 301, spacer sleeve 504 is sleeved on transmission shaft 501, and first bearing 502 and second bearing 506 are located at spacer sleeve 504
Both sides, spacer sleeve 504 is for being spaced first bearing 502 and second bearing 506.First jet ring 503 and second nozzle ring 505 are pacified
On transmission shaft 501, transmission shaft 501 is interference fitted with first bearing 502 and second bearing 506.Transmission shaft 501 and dynamical system
It is machined with spline on one end of system connection, the other end is machined with installation interface, and the installation interface is for connecting eccentric contract examination
Test part 4.It is also threaded on transmission shaft 501, which is used for installation locking nut 507, and locking nut 507 is for fixing the
The position of one bearing 502.On transmission shaft 501 and it is machined with helixseal slot on 202 corresponding position of oil sealing cap, for connecting envelope
Oil cap 202.
As shown in figure 5, mist of oil import 103 and air intlet 104 are offered on babinet 1, mist of oil import 103 and air intlet
104 are connected to test cavity 11 respectively.
Wherein, it can be provided with mist of oil connector at mist of oil import 103, oil can be quickly and easily connected by mist of oil connector
Fog generator provides mist of oil for test cavity 11.Inlet suction port can be set at air intlet 104, it can be fast by inlet suction port
Speed connection outside air system, supplies for test cavity 11.The mixing in test cavity 11 of mist of oil and air, forms the oil gas two of simulation
Xiang Liu.
Position on babinet 1 corresponding to test cavity 11 is provided with the first chamber temperature detection tabs 102 and the pressure detection of the first chamber connects
First 101, the first chamber temperature detection tabs 102 are for connecting temperature-detecting device, and the first chamber pressure detection tabs 101 are for connecting pressure
Detection device.
Wherein, temperature-detecting device can be temperature sensor, and temperature sensor is mounted on the first chamber temperature detection tabs 102
On, for detecting the temperature in test cavity 11.Pressure-detecting device can be pressure sensor, and pressure sensor is mounted on first
Chamber is pressed in detection tabs 101, for detecting the pressure in test cavity 11.
It is supported on babinet 1 on 12 corresponding position of chamber and offers fuel-tank vent 107,106 and of the second chamber temperature detection tabs
Bearing oil supplying hole 109, fuel-tank vent 107 are connected to support chamber 12, and the second chamber temperature detection tabs 106 are used for and temperature detection dress
Connection is set, bearing oil supplying hole 109 is connected to support chamber 12, for providing lubricating oil for first bearing 502 and second bearing 506.
Fuel tank vent pipe fitting is installed, fuel tank vent pipe fitting is divulged information for connecting ventilation duct on fuel-tank vent 107
Pipe is connected between support chamber 12 and equipment oil tank, for maintaining the chamber pressure in support chamber 12.Temperature-detecting device can be
Temperature sensor, the temperature sensor are mounted in the second chamber temperature detection tabs 106, the temperature for detecting support chamber 12.Axis
It holds and fuel-intake connection is installed on oil supplying hole 109.
Vibration measuring seat 105 is provided on babinet 1, vibration measuring seat 105 is for connecting vibration detection device, wherein vibration detection fills
It can be vibrating sensor to set, and vibrating sensor is mounted on vibration measuring seat 105, the vibration of device when for detecting experiment.
As shown in figure 4,1 bottom of babinet, which offers the first receipts oilhole 108 and second, receives oilhole 110, first receives 108 He of oilhole
Test cavity 11 is connected to, and the second receipts oilhole 110 is connected to support chamber 12.
Wherein, it is provided with test cavity collection tube connector on the first receipts oilhole 108, is used for joint test chamber collection tube；Second
It receives and is provided with support chamber collection tube connector on oilhole 110, for connecting support chamber collection tube.
As shown in figure 3, gas vent 113 is provided on babinet 1, the centre bore of gas vent 113 and eccentric contract testpieces 4
Connection is used for the exhaust of eccentric contract testpieces 4.Eccentric contract testpieces 4 inhales the gas mixture in test cavity 11
Enter, then detached, the lubricating oil after separation due to gravity effect, under fall on the bottom of test cavity 11, pass through first and receive oil
It recycles in hole 108.Air is discharged into air by the centre bore and gas vent 113 of eccentric contract testpieces 4.
First end cover 111 is installed at gas vent 113, the first end cover 111 and babinet 1 are bolted,
And it is provided with gasket 112 between the first end cover 111 and babinet 1.In order to ensure 111 He of the first end cover of air-tightness
It is sealed by first seal 114 between eccentric contract testpieces 4, wherein first seal 114 can be that magnetism obturages ring.
As shown in Figure 1, babinet 1 includes the first babinet and the second babinet being tightly connected.In one kind of the embodiment of the present disclosure
In feasible mode, babinet 1 is up-down structure, and the first babinet is upper box, and the second babinet is lower box, upper box and lower box
It is bolted.In order to ensure the leakproofness of connection, fluid sealant can be coated on the contact surface of upper box and lower box.
In order to facilitate the eccentric contract performance test apparatus of the disclosure is carried, the top of babinet 1 is provided with lifting and connects
First 115.
Exemplary, the experiment process by the eccentric contract performance test apparatus of the disclosure is as follows：
Device leak check before experiment：
Before experiment, bulge test, the leakproofness of checkout facility chamber 11 are carried out to test cavity 11.The experiment of the embodiment of the present disclosure
11 proof pressure of chamber however be less than 70kPa, when 11 pressure of test cavity reaches 70kPa, stop supercharging, keep 10 in this state
Minute, chamber crushing loses within 5kPa, then leakproofness is good.
The pressure loss is tested：
It blocks mist of oil import 103 and first and receives oilhole 108, lead to the sky of different flow toward test cavity by air intlet 104
Then gas adjusts 4 rotating speed of eccentric contract testpieces by motor, each state point, which is stablized, stops (1~4) min, wait for chamber pressure,
After the index parameters such as chamber temperature are stablized, the pressure loss of eccentric contract testpieces 4 is calculated, wherein the pressure loss=test cavity chamber
Pressure-exhaust port pressure.
Oil-gas separation efficiency is tested
Gas mixture enters test cavity 11 from mist of oil import 103, and air enters test cavity 11 from air intlet 104 and blends
Mist of oil is done then by adjusting the rotating speed of eccentric contract testpieces 4 under different mist of oil states and different rotary regimes
Orthogonal test, each state point work 10min, and mist of oil is after the separation of eccentric contract testpieces 4, and air is from 113 row of gas vent
Go out, the lubricating oil after separation is received oilhole 108 from first and recycled, and final separation efficiency=first receives oilhole and receive oil quality flow/mist of oil
In contained lubricating oil mass flow × 100%.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and includes the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by appended
Claim is pointed out.
Claims (10)
1. eccentric contract performance test apparatus, which is characterized in that including：
Babinet has the test cavity for sealing against each other isolation and support chamber；
Transmission shaft component passes through the support chamber and coordinates with the body pivot, one end of the transmission shaft component for
Eccentric contract testpieces connection in the test cavity, the other end is for connecting dynamical system.
2. eccentric contract performance test apparatus as described in claim 1, which is characterized in that be provided with separation in the babinet
The housing interior volume is divided into test cavity and support chamber by component, the partition component.
3. eccentric contract performance test apparatus as claimed in claim 2, which is characterized in that further include first bearing holder assembly
With second bearing holder assembly；
First through hole is provided on the support cavity outer wall, the first bearing holder assembly is sealingly mounted at the first through hole
It is interior；
The second through-hole is provided on the partition component, the second bearing holder assembly is sealingly mounted in second through-hole；
The transmission shaft component is mounted on by the first bearing holder assembly and the second bearing holder assembly on the babinet.
4. eccentric contract performance test apparatus as claimed in claim 3, which is characterized in that the second bearing holder assembly packet
It includes：
Second bearing seat is mounted in second through-hole；
Second bearing gland is connected positioned at the support intracavitary portion with the second bearing seat；
Second end cover is located at outside the support chamber and is connected with the second bearing seat, set on second end cover
It is equipped with centre bore, second seal, second end cover and eccentric contract experiment are provided in the centre bore
Part is sealed by the second seal.
5. eccentric contract performance test apparatus as claimed in claim 4, which is characterized in that the second seal is magnetism
Obturage ring.
6. such as eccentric contract performance test apparatus described in any one of claim 1 to 5, which is characterized in that on the babinet
Mist of oil import and air intlet are offered, the mist of oil import and the air intlet are connected to the test cavity respectively.
7. such as eccentric contract performance test apparatus described in any one of claim 1 to 5, which is characterized in that on the babinet
Position corresponding to test cavity is provided with the first chamber temperature detection tabs and the first chamber pressure detection tabs, and the first chamber temperature detector survey connects
Head is for connecting temperature-detecting device, and the first chamber pressure detection tabs are for connecting pressure-detecting device；
It is supported on the babinet and offers fuel-tank vent and the second chamber temperature detection tabs on the corresponding position of chamber, the fuel tank is logical
Air port is connected to the support chamber, and the second chamber temperature detection tabs with temperature-detecting device for connecting；
Vibration measuring seat is provided on the babinet, the vibration measuring seat is for connecting vibration detection device.
8. such as eccentric contract performance test apparatus described in any one of claim 1 to 5, which is characterized in that the babinet bottom
Portion offers the first receipts oilhole and second receives oilhole, and the first receipts oilhole is connected to the test cavity, and described second receives oilhole
It is connected to the support chamber.
9. such as eccentric contract performance test apparatus described in any one of claim 1 to 5, which is characterized in that on the babinet
It is provided with gas vent, the gas vent is connected to the eccentric contract testpieces centre bore, is tried for the eccentric contract
Test part exhaust；
First end cover is installed at the gas vent, is provided between the first end cover and eccentric contract testpieces
One sealing element.
10. such as eccentric contract performance test apparatus described in any one of claim 1 to 5, which is characterized in that the babinet packet
Include the first babinet and the second babinet of sealed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510944.1A CN108709728B (en) | 2018-05-24 | 2018-05-24 | Centrifugal ventilator performance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510944.1A CN108709728B (en) | 2018-05-24 | 2018-05-24 | Centrifugal ventilator performance test device |
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| CN108709728A true CN108709728A (en) | 2018-10-26 |
| CN108709728B CN108709728B (en) | 2021-03-23 |
Family
ID=63869664
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|---|---|---|---|
| CN201810510944.1A Active CN108709728B (en) | 2018-05-24 | 2018-05-24 | Centrifugal ventilator performance test device |
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| CN (1) | CN108709728B (en) |
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| CN110361136A (en) * | 2019-07-19 | 2019-10-22 | 中国航发沈阳发动机研究所 | A kind of between centers seal tester |
| CN113049238A (en) * | 2021-03-15 | 2021-06-29 | 中国航发沈阳发动机研究所 | Superspeed centrifugal ventilator performance test device |
| CN114636538A (en) * | 2022-04-06 | 2022-06-17 | 苏州东菱振动试验仪器有限公司 | Test box and vibration test system |
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|---|---|---|---|---|
| CN110361136A (en) * | 2019-07-19 | 2019-10-22 | 中国航发沈阳发动机研究所 | A kind of between centers seal tester |
| CN110361136B (en) * | 2019-07-19 | 2021-05-25 | 中国航发沈阳发动机研究所 | Inter-shaft sealing tester |
| CN113049238A (en) * | 2021-03-15 | 2021-06-29 | 中国航发沈阳发动机研究所 | Superspeed centrifugal ventilator performance test device |
| CN113049238B (en) * | 2021-03-15 | 2022-06-07 | 中国航发沈阳发动机研究所 | Superspeed centrifugal ventilator performance test device |
| CN114636538A (en) * | 2022-04-06 | 2022-06-17 | 苏州东菱振动试验仪器有限公司 | Test box and vibration test system |
| CN114636538B (en) * | 2022-04-06 | 2024-03-08 | 苏州东菱振动试验仪器有限公司 | Test box and vibration test system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108709728B (en) | 2021-03-23 |
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