CN108709728B - Centrifugal ventilator performance test device - Google Patents
Centrifugal ventilator performance test device Download PDFInfo
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- CN108709728B CN108709728B CN201810510944.1A CN201810510944A CN108709728B CN 108709728 B CN108709728 B CN 108709728B CN 201810510944 A CN201810510944 A CN 201810510944A CN 108709728 B CN108709728 B CN 108709728B
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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
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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
- G01M3/26—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
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Abstract
The present disclosure provides a centrifugal ventilator performance test device, including: the box body is provided with a test cavity and a support cavity which are mutually sealed and isolated; and the transmission shaft assembly penetrates through the support cavity and is in running fit with the box body, one end of the transmission shaft assembly is used for being connected with a centrifugal ventilator test piece positioned in the test cavity, and the other end of the transmission shaft assembly is used for being connected with a power system. The centrifugal ventilator test piece is driven to rotate through the transmission shaft assembly, oil-gas separation is carried out, the centrifugal ventilator test piece is located in the test cavity during testing, the transmission shaft assembly is installed in the supporting cavity, and the test cavity and the supporting cavity are sealed and isolated from each other, so that the test environment in the test cavity is the same as the actual working environment of the centrifugal ventilator on the aeroengine, and the performance of the centrifugal ventilator can be accurately detected.
Description
Technical Field
The utility model relates to an aeroengine technical field particularly, relates to a centrifugal ventilator performance test device.
Background
The centrifugal ventilator is an important part in an aircraft engine lubricating oil system, is usually arranged on a bearing cavity ventilating path and is mainly used for separating lubricating oil in oil-gas two-phase flow of the ventilating path, so that the consumption of the lubricating oil is reduced, the flight time is prolonged, and the pollution of oil mist to the environment can be reduced.
Pressure loss and oil-gas separation efficiency are two main indexes for measuring the performance of the centrifugal ventilator, the pressure loss is related to the pressure and sealing effect of a bearing cavity, and the oil-gas separation efficiency is related to the consumption of lubricating oil. Since the performance of centrifugal ventilators cannot be measured directly on an aircraft engine, it is necessary to test the performance of centrifugal ventilators by experimentation.
At present, a test device specially aiming at a centrifugal ventilator does not exist, so that the test device for detecting the performance of the centrifugal ventilator needs to be developed urgently.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The purpose of this disclosure is to provide a centrifugal ventilator performance test device, the operating mode of true simulation centrifugal ventilator in aeroengine to detect centrifugal ventilator's performance.
According to one aspect of the present disclosure there is provided a centrifugal ventilator performance testing apparatus comprising:
the box body is provided with a test cavity and a support cavity which are mutually sealed and isolated;
and the transmission shaft assembly penetrates through the support cavity and is in running fit with the box body, one end of the transmission shaft assembly is used for being connected with a centrifugal ventilator test piece positioned in the test cavity, and the other end of the transmission shaft assembly is used for being connected with a power system.
According to an embodiment of the present disclosure, a partition assembly is disposed in the box body, and the partition assembly partitions the internal space of the box body into a test cavity and a support cavity.
According to an embodiment of the present disclosure, further comprising a first bearing housing assembly and a second bearing housing assembly;
a first through hole is formed in the outer wall of the supporting cavity, and the first bearing seat assembly is hermetically installed in the first through hole;
the separating assembly is provided with a second through hole, and the second bearing seat assembly is hermetically arranged in the second through hole;
the transmission shaft assembly is mounted on the box body through the first bearing seat assembly and the second bearing seat assembly.
According to an embodiment of the present disclosure, the second bearing housing assembly includes:
the second bearing seat is arranged in the second through hole;
the second bearing cover is positioned inside the supporting cavity and connected with the second bearing seat;
and the second sealing end cover is positioned outside the supporting cavity and connected with the second bearing seat, a central hole is formed in the second sealing end cover, a second sealing element is arranged in the central hole, and the second sealing end cover and the centrifugal ventilator test piece are sealed through the second sealing element.
According to an embodiment of the present disclosure, the second seal is a magnetic seal ring.
According to one embodiment of the present disclosure, an oil mist inlet and an air inlet are formed in the box body, and the oil mist inlet and the air inlet are respectively communicated with the test chamber.
According to one embodiment of the disclosure, a first cavity temperature detection joint and a first cavity pressure detection joint are arranged at positions corresponding to a test cavity on a box body, the first cavity temperature detection joint is used for being connected with a temperature detection device, and the first cavity pressure detection joint is used for being connected with a pressure detection device;
an oil tank vent and a second cavity temperature detection joint are arranged at the position corresponding to the support cavity on the box body, the oil tank vent is communicated with the support cavity, and the second cavity temperature detection joint is used for being connected with a temperature detection device;
the box body is provided with a vibration measuring seat which is used for being connected with a vibration detection device.
According to an embodiment of the present disclosure, a first oil receiving hole and a second oil receiving hole are formed in the bottom of the box body, the first oil receiving hole is communicated with the test cavity, and the second oil receiving hole is communicated with the support cavity.
According to one embodiment of the disclosure, the box body is provided with an exhaust hole which is communicated with the central hole of the centrifugal ventilator test piece and used for exhausting air of the centrifugal ventilator test piece;
and a first sealing end cover is arranged at the exhaust hole, and a first sealing element is arranged between the first sealing end cover and the centrifugal ventilator test piece.
According to an embodiment of the present disclosure, the case includes a first case and a second case hermetically connected.
This centrifugal ventilator performance test device of this disclosure drives centrifugal ventilator test piece through the drive shaft subassembly and rotates, carries out oil-gas separation, and centrifugal ventilator test piece is located the test chamber during experiment, and the drive shaft subassembly is installed in supporting the chamber, and the test chamber is sealed the isolation each other with supporting the chamber for the experimental environment in the test chamber is the same with the actual operational environment of centrifugal ventilator in the aeroengine, can accurately detect centrifugal ventilator's performance.
The transmission shaft assembly rotates relative to the box body in the test process, so that lubrication is needed, lubricating oil is in the supporting cavity, the supporting cavity and the test cavity are mutually sealed and isolated, the lubricating oil is prevented from entering the test cavity, the test oil mist is mixed in the test cavity, the test result is influenced, and the accuracy of the performance test result of the centrifugal ventilator is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 is a schematic perspective view of a centrifugal ventilator performance testing apparatus.
Figure 2 schematically shows a right side view of a centrifugal ventilator performance testing apparatus.
FIG. 3 schematically shows a cross-sectional view A-A of the centrifugal ventilator performance testing apparatus.
FIG. 4 schematically shows a cross-sectional view of the centrifugal ventilator performance testing apparatus in the direction B-B.
Figure 5 schematically shows a top view of a centrifugal ventilator performance testing apparatus.
In the figure:
1. a box body; 11. a test chamber; 12. a support cavity; 101. a first chamber pressure detection joint; 102. a first cavity temperature detection joint; 103. an oil mist inlet; 104. an air inlet; 105. a vibration measuring seat; 106. a second cavity temperature detection junction; 107. a tank vent; 108. a first oil receiving hole; 109. a bearing oil supply hole; 110. a second oil receiving hole; 111. a first end seal cap; 112. a gasket; 113. an exhaust hole; 114. a first seal member; 115. hoisting a connector;
201. a first bearing housing; 202. sealing an oil cover; 203. a first bearing gland;
301. a second bearing housing; 302. a second bearing cap; 303. a spring seat; 304. a second end seal cap; 305. a spring; 306. a second seal member; 4. a centrifugal ventilator test piece;
501. a drive shaft; 502. a first bearing; 503. a first nozzle ring; 504. a spacer sleeve; 505. a second nozzle ring; 506. a second bearing; 507. and locking the nut.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first" and "second" are used merely as labels, and are not limiting on the number of their objects.
In the present exemplary embodiment, a centrifugal ventilator performance test apparatus is provided, as shown in fig. 1 to 3, the centrifugal ventilator performance test apparatus includes a box 1 and a transmission shaft assembly:
the box body 1 is provided with a test cavity 11 and a support cavity 12 which are mutually sealed and isolated; and the transmission shaft assembly penetrates through the support cavity 12 and is in running fit with the box body 1, one end of the transmission shaft assembly is used for being connected with the centrifugal ventilator test piece 4 positioned in the test cavity 11, and the other end of the transmission shaft assembly is used for being connected with a power system.
The transmission shaft assembly is driven to rotate through the power system, the transmission shaft drives the centrifugal ventilator test piece 4 to rotate, oil mist in the test cavity 11 is separated, and the process that the centrifugal ventilator separates lubricating oil in oil-gas two-phase flow in the aircraft engine is simulated.
The support chamber 12 may be of a cubic or cylindrical configuration, but in order to ensure that the test environment is the same as the actual working environment of the centrifugal ventilator, the test chamber 11 needs to be of the same or similar shape to the actual working space of the centrifugal ventilator within the engine casing.
This centrifugal ventilator performance test device of this disclosure drives centrifugal ventilator test piece 4 through the transmission shaft subassembly and rotates, carries out oil-gas separation, centrifugal ventilator test piece 4 is arranged in experimental chamber 11 during the experiment, and the transmission shaft subassembly is installed in supporting chamber 12, and experimental chamber 11 and supporting chamber 12 mutual seal keep apart for experimental environment in experimental chamber 11 is the same with the actual operational environment of centrifugal ventilator in aeroengine, has guaranteed that centrifugal ventilator performance test device can accurate test centrifugal ventilator performance.
The transmission shaft assembly rotates relative to the box body 1 in the test process, so that lubrication is needed, lubricating oil is in the supporting cavity 12, the supporting cavity 12 and the test cavity 11 are sealed and isolated from each other, the lubricating oil is prevented from entering the test cavity 11 and being mixed into test oil mist, the test result is influenced, and the accuracy of the performance test result of the centrifugal ventilator is improved.
As shown in fig. 3 and 4, a partition assembly 13 is provided in the housing 1, and the partition assembly 13 partitions the internal space of the housing 1 into the test chamber 11 and the support chamber 12.
Wherein, isolation component 13 is worn out to the one end of driveshaft subassembly, and the other end wears out box 1 outer wall, driveshaft subassembly and isolation component sealing connection to guarantee the sealed effect of keeping apart of test chamber 11 and support chamber 12.
For example, the isolation component 13 may be a partition integrally formed with the tank 1, or a partition connected to the tank 1 by welding or the like, or may be another isolation component hermetically connected to the tank 1.
As shown in fig. 3, the centrifugal ventilator performance testing apparatus provided by the present disclosure further includes a first bearing housing assembly and a second bearing housing assembly;
a first through hole is formed in the outer wall of the support cavity 12, and the first bearing seat assembly is hermetically installed in the first through hole; the separating assembly is provided with a second through hole, and the second bearing seat assembly is hermetically arranged in the second through hole; the transmission shaft assembly is fixedly arranged on the box body 1 through the first bearing seat assembly and the second bearing seat assembly.
Wherein, first through-hole and the coaxial setting of second through-hole, first bearing seat subassembly passes through bolt and 1 fixed connection of box, in order to guarantee the leakproofness of connecting, can install the sealing washer in the junction.
The first chock assembly includes: the oil seal structure comprises a first bearing seat 201, an oil seal cover 202 and a first bearing cover 203, wherein the first bearing seat 201 is installed in a first through hole, a raised flange is arranged on the first bearing seat 201, a connecting hole is formed in the flange, and a bolt penetrates through the connecting hole to connect the first bearing seat 201 with the box body 1. The first bearing seat 201 is provided with a first bearing 502, the first bearing cover 203 is positioned in the support cavity 12, and the first bearing seat 201 is connected through bolts. The oil seal cover 202 is located outside the case 1 and is connected to the first bearing housing 201 by bolts.
The second chock assembly includes: the second bearing seat 301 is installed in the second through hole, and during installation, a sealant can be coated on the contact surface between the second bearing seat 301 and the second through hole; a second bearing cover 302 is positioned inside the support cavity 12 and connected with the second bearing seat 301; a second end cap 304 is located inside the test chamber 11 and is connected to the second bearing block 301, the second end cap 304 is provided with a central bore in which a second seal 306 is arranged, and the second end cap 304 and the centrifugal ventilator test piece 4 are sealed by the second seal 306.
The second bearing housing assembly further comprises a spring 305 and a spring seat 303, the spring 305 and the spring seat 303 being mounted inside the second bearing housing 301 for pretensioning a second bearing 506 mounted in the second bearing housing 301.
Preferably, the second seal 306 is a magnetic seal ring.
The drive shaft assembly comprises a drive shaft 501, a spacer sleeve 504, a first bearing 502, a second bearing 506, a first nozzle ring 503 and a second nozzle ring 505; the first bearing 502 is mounted on the first bearing seat 201, the second bearing 506 is mounted on the second bearing seat 301, the spacer sleeve 504 is sleeved on the transmission shaft 501, the first bearing 502 and the second bearing 506 are respectively located on two sides of the spacer sleeve 504, and the spacer sleeve 504 is used for spacing the first bearing 502 and the second bearing 506. The first nozzle ring 503 and the second nozzle ring 505 are mounted on a drive shaft 501, the drive shaft 501 being in interference fit with a first bearing 502 and a second bearing 506. One end of the transmission shaft 501 connected with the power system is provided with a spline, and the other end of the transmission shaft 501 is provided with a mounting interface which is used for connecting the centrifugal ventilator test piece 4. The drive shaft 501 is also threaded for mounting a lock nut 507, and the lock nut 507 is used to fix the position of the first bearing 502. A spiral sealing groove is formed in the transmission shaft 501 at a position corresponding to the oil seal cover 202 and used for connecting the oil seal cover 202.
As shown in fig. 5, the case 1 is provided with an oil mist inlet 103 and an air inlet 104, and the oil mist inlet 103 and the air inlet 104 are respectively communicated with the test chamber 11.
Wherein, oil mist import 103 department can be provided with the oil mist and connect, can conveniently connect the oil mist generator fast through the oil mist and connect, provides the oil mist for test chamber 11. Air inlet 104 may be provided with an air inlet connector through which an external air system can be quickly connected to supply air to test chamber 11. The oil mist and air mix in the test chamber 11 to form a simulated two-phase flow of oil and gas.
The position that experimental chamber 11 corresponds on box 1 is provided with first chamber temperature detection and connects 102 and first chamber pressure detection and connect 101, and first chamber temperature detection connects 102 and is used for connecting temperature-detecting device, and first chamber pressure detection connects 101 and is used for connecting pressure detection device.
Wherein the temperature detecting means may be a temperature sensor mounted on the first chamber temperature detecting joint 102 for detecting the temperature in the test chamber 11. The pressure detecting means may be a pressure sensor mounted on the first chamber pressure detecting connector 101 for detecting the pressure in the test chamber 11.
The oil tank vent hole 107, the second cavity temperature detection joint 106 and the bearing oil supply hole 109 are formed in the position, corresponding to the support cavity 12, on the box body 1, the oil tank vent hole 107 is communicated with the support cavity 12, the second cavity temperature detection joint 106 is used for being connected with a temperature detection device, and the bearing oil supply hole 109 is communicated with the support cavity 12 and used for providing lubricating oil for the first bearing 502 and the second bearing 506.
An oil tank vent pipe joint is mounted on the oil tank vent hole 107 and used for connecting a vent pipe, and the vent pipe is connected between the support cavity 12 and the equipment lubricating oil tank and used for maintaining cavity pressure in the support cavity 12. The temperature sensing device may be a temperature sensor mounted on the second chamber temperature sensing connector 106 for sensing the temperature of the support chamber 12. An oil supply joint is installed on the bearing oil supply hole 109.
The box body 1 is provided with a vibration measuring seat 105, and the vibration measuring seat 105 is used for connecting a vibration detecting device, wherein the vibration detecting device can be a vibration sensor, and the vibration sensor is arranged on the vibration measuring seat 105 and used for detecting the vibration of the device during the test.
As shown in FIG. 4, a first oil collecting hole 108 and a second oil collecting hole 110 are formed at the bottom of the case 1, the first oil collecting hole 108 is communicated with the test chamber 11, and the second oil collecting hole 110 is communicated with the support chamber 12.
The first oil collecting hole 108 is provided with a test cavity oil collecting pipe joint for connecting a test cavity oil collecting pipe; the second oil receiving hole 110 is provided with a support cavity oil receiving pipe joint for connecting a support cavity oil receiving pipe.
As shown in FIG. 3, the casing 1 is provided with an air discharge hole 113, and the air discharge hole 113 is communicated with a central hole of the centrifugal ventilator test piece 4 for discharging air from the centrifugal ventilator test piece 4. The centrifugal ventilator test piece 4 sucks the oil-gas mixture in the test chamber 11, then the oil-gas mixture is separated, and the separated lubricating oil falls to the bottom of the test chamber 11 under the action of gravity and is recovered through the first oil receiving hole 108. Air is vented to atmosphere through the central aperture of the centrifugal ventilator test piece 4 and the vent holes 113.
A first sealing end cover 111 is installed at the exhaust hole 113, the first sealing end cover 111 and the box body 1 are connected through bolts, and a sealing gasket 112 is arranged between the first sealing end cover 111 and the box body 1. In order to ensure that the air-tight first sealing end cap 111 is sealed to the centrifugal ventilator test piece 4 by a first seal 114, the first seal 114 may be a magnetic sealing ring.
As shown in fig. 1, the case 1 includes a first case and a second case which are hermetically connected. In a feasible mode of the embodiment of the present disclosure, the box body 1 is of an up-and-down structure, the first box body is an upper box body, the second box body is a lower box body, and the upper box body and the lower box body are connected by bolts. In order to ensure the connection tightness, a sealing glue can be coated on the contact surface of the upper box body and the lower box body.
In order to facilitate carrying of the centrifugal ventilator performance test apparatus of the present disclosure, a lifting joint 115 is provided at the top of the box body 1.
By way of example, the test procedure through the centrifugal ventilator performance testing apparatus of the present disclosure is as follows:
device tightness check before testing:
before the test, the test chamber 11 was subjected to a compression test, and the sealing property of the test chamber 11 was checked. The test chamber 11 of the embodiment of the present disclosure has a pressure resistance not lower than 70kPa, and when the pressure of the test chamber 11 reaches 70kPa, pressurization is stopped, and the state is maintained for 10 minutes, and the chamber pressure loss is within 5kPa, the sealing property is good.
Pressure loss test:
the oil mist inlet 103 and the first oil collecting hole 108 are blocked, air with different flow rates is introduced into the test cavity through the air inlet 104, then the rotating speed of the centrifugal ventilator test piece 4 is adjusted through the motor, each state point stably stays for (1-4) min, and after index parameters such as cavity pressure and cavity temperature are stable, the pressure loss of the centrifugal ventilator test piece 4 is calculated, wherein the pressure loss is the pressure of the test cavity pressure-exhaust port pressure.
Oil-gas separation efficiency test
The oil-gas mixture enters the test cavity 11 from the oil mist inlet 103, air enters the test cavity 11 from the air inlet 104 to mix oil mist, then orthogonal tests are carried out under different oil mist states and different rotating speed states by adjusting the rotating speed of the centrifugal ventilator test piece 4, each state point works for 10min, after the oil mist is separated by the centrifugal ventilator test piece 4, the air is discharged from the air exhaust hole 113, the separated lubricating oil is recovered from the first oil receiving hole 108, and finally the separation efficiency is equal to the mass flow rate of the oil received by the first oil receiving hole/the mass flow rate of the lubricating oil contained in the oil mist multiplied by 100%.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (6)
1. Centrifugal ventilator performance test device, its characterized in that includes:
the test device comprises a box body, a test device and a control device, wherein a separation assembly is arranged in the box body and divides the inner space of the box body into a test cavity and a support cavity which are mutually sealed and isolated;
the transmission shaft assembly penetrates through the supporting cavity and is in rotating fit with the box body, one end of the transmission shaft assembly is used for being connected with a centrifugal ventilator test piece positioned in the test cavity, the other end of the transmission shaft assembly is used for being connected with a power system, and the transmission shaft assembly drives the centrifugal ventilator test piece to rotate so as to separate oil mist in the test cavity;
the first bearing seat assembly is arranged on the outer wall of the supporting cavity and is hermetically installed in the first through hole;
the separating assembly is provided with a second through hole, the second bearing seat assembly is hermetically arranged in the second through hole, the transmission shaft assembly is arranged on the box body through the first bearing seat assembly and the second bearing seat assembly, the transmission shaft assembly comprises a first bearing and a second bearing, the first bearing is arranged on the first bearing seat, and the second bearing is arranged on the second bearing seat;
wherein the second chock assembly comprises:
the second bearing seat is arranged in the second through hole;
the second bearing cover is positioned inside the supporting cavity and connected with the second bearing seat;
the second sealing end cover is located outside the supporting cavity and connected with the second bearing seat, a central hole is formed in the second sealing end cover, a second sealing element is arranged in the central hole, the second sealing end cover and the centrifugal ventilator test piece are sealed through the second sealing element, and the second sealing element is a magnetic sealing ring.
2. The centrifugal ventilator performance testing apparatus as recited in claim 1, wherein the housing defines an oil mist inlet and an air inlet, the oil mist inlet and the air inlet being in communication with the test chamber, respectively.
3. The centrifugal ventilator performance test device as claimed in claim 1, wherein a first chamber temperature detection joint and a first chamber pressure detection joint are arranged at positions corresponding to the test chamber on the box body, the first chamber temperature detection joint is used for connecting the temperature detection device, and the first chamber pressure detection joint is used for connecting the pressure detection device;
an oil tank vent and a second cavity temperature detection joint are arranged at the position corresponding to the support cavity on the box body, the oil tank vent is communicated with the support cavity, and the second cavity temperature detection joint is used for being connected with a temperature detection device;
the box body is provided with a vibration measuring seat which is used for being connected with a vibration detection device.
4. The centrifugal ventilator performance test device of claim 1, wherein a first oil receiving hole and a second oil receiving hole are formed in the bottom of the box body, the first oil receiving hole is communicated with the test cavity, and the second oil receiving hole is communicated with the support cavity.
5. The centrifugal ventilator performance testing apparatus of claim 1 wherein the housing is provided with vent holes, the vent holes being in communication with the centrifugal ventilator test piece central aperture for venting the centrifugal ventilator test piece;
and a first sealing end cover is arranged at the exhaust hole, and a first sealing element is arranged between the first sealing end cover and the centrifugal ventilator test piece.
6. The centrifugal ventilator performance testing apparatus of claim 1 wherein the housing comprises a first housing and a second housing sealingly connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810510944.1A CN108709728B (en) | 2018-05-24 | 2018-05-24 | Centrifugal ventilator performance test device |
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| CN201810510944.1A CN108709728B (en) | 2018-05-24 | 2018-05-24 | Centrifugal ventilator performance test device |
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| CN108709728A CN108709728A (en) | 2018-10-26 |
| CN108709728B true CN108709728B (en) | 2021-03-23 |
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| CN110361136B (en) * | 2019-07-19 | 2021-05-25 | 中国航发沈阳发动机研究所 | Inter-shaft sealing tester |
| 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 |
| 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 |
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| CN104502092A (en) * | 2014-12-11 | 2015-04-08 | 江苏大学 | Vertical visual oil film power test device |
| CN104897404A (en) * | 2015-06-18 | 2015-09-09 | 哈尔滨工程大学 | Experimental device and method for measuring performance of centrifugal ventilator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5927947A (en) * | 1997-12-08 | 1999-07-27 | Ford Motor Company | Dynamically balanced centrifugal fan |
| PL1719995T3 (en) * | 2005-05-04 | 2008-06-30 | Denso Thermal Systems Spa | Equipment for automatically balancing ventilation units for vehicles |
| CN103411785A (en) * | 2013-08-14 | 2013-11-27 | 中国航空工业集团公司沈阳发动机设计研究所 | Method for measuring performance of centrifugal ventilator |
| CN107014620B (en) * | 2017-06-01 | 2020-08-21 | 中国航发湖南动力机械研究所 | Test method and test device for measuring lubricating oil consumption of centrifugal ventilator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502092A (en) * | 2014-12-11 | 2015-04-08 | 江苏大学 | Vertical visual oil film power test device |
| CN104897404A (en) * | 2015-06-18 | 2015-09-09 | 哈尔滨工程大学 | Experimental device and method for measuring performance of centrifugal ventilator |
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