CN111879518A - Lubricating oil pump air plug verification test device and test method - Google Patents
Lubricating oil pump air plug verification test device and test method Download PDFInfo
- Publication number
- CN111879518A CN111879518A CN202010744144.3A CN202010744144A CN111879518A CN 111879518 A CN111879518 A CN 111879518A CN 202010744144 A CN202010744144 A CN 202010744144A CN 111879518 A CN111879518 A CN 111879518A
- Authority
- CN
- China
- Prior art keywords
- lubricating oil
- oil pump
- oil
- level
- lubricating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Abstract
The invention discloses a lubricating oil pump air plug verification test device and a test method. By the device and the method, whether the lubricating oil pump has the problem of air lock can be verified by the lubricating oil pump ground bench tester, and the failure of starting the engine caused by the fact that the lubricating oil pump with the problem of air lock is assembled to the engine is avoided.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a lubricating oil pump air plug verification test device and a test method.
Background
The problem of an air plug of a lubricating oil pump of an aircraft engine is a common fault, and the main phenomenon is that gas at the inlet of the lubricating oil pump cannot be rapidly discharged, so that the lubricating oil pump cannot rapidly extract lubricating oil from an oil tank to lubricate the engine, and further the fault that the engine fails to start is caused.
The problem of the air plug of the lubricating oil pump is basically found when the engine is started, and the air plug verification test is not carried out during the delivery test of the lubricating oil pump. At present, a ground rack device and a ground rack method which can carry out a lubricating oil pump air plug verification test are unavailable.
Disclosure of Invention
Object of the Invention
The invention provides a lubricating oil pump air plug verification test device and a test method, which can carry out an air plug verification test for a lubricating oil pump, do not need to verify the air plug condition after the lubricating oil pump is assembled on an engine, can timely find whether the lubricating oil pump has the air plug problem, and avoid the failure of starting the engine due to the air plug problem after the lubricating oil pump is assembled on the engine.
Technical solution of the invention
The utility model provides a lubricating oil pump air lock verification test device, includes drive arrangement, lubricating oil pump, fuel feeding level oil tank and oil return level oil tank, and drive arrangement is used for driving the lubricating oil pump, and the fuel feeding level and the oil return level of lubricating oil pump pass through the pipeline with fuel feeding level oil tank and oil return level oil tank respectively and link to each other.
Preferably, the oil-supply-level oil tank adopts a structure with adjustable height.
Preferably, the end of the conduit connecting the supply-grade tank is capable of being disengaged from or inserted into the lubricating medium of the supply-grade tank.
Preferably, a valve and a pressure gauge are arranged on a pipeline at the outlet of the oil supply stage.
Preferably, the drive means employs an electric motor or a combination of an electric motor and a change speed gearbox.
Preferably, a transparent hose is used as a pipeline at an oil supply progressive opening of the lubricating oil pump.
Preferably, the structure capable of adjusting the height comprises a hydraulic lifting device and a pneumatic lifting device.
A method for verifying and testing an air plug of a lubricating oil pump comprises the following test processes: when a test is started, a pipeline at an oil supply level inlet of the lubricating oil pump is inserted below the liquid level of a lubricating oil medium of an oil supply level oil tank, the lubricating oil pump is driven to rotate to a specified rotating speed by using a driving device, the outlet pressure of the oil supply level is regulated to a specified pressure by using a valve on the pipeline at an oil supply level outlet, and the outlet pressure of the oil supply level of the lubricating oil pump is recorded by using a pressure gauge; stopping the operation of the motor, adjusting the height of the oil supply level oil tank to ensure that the height H from the liquid level to the oil supply level inlet of the lubricating oil pump is regulated to a specified value, separating the end part of the pipeline at the oil supply level inlet from a lubricating oil medium in the oil supply level oil tank, starting the driving device to drive the lubricating oil pump to a specified rotating speed and stably operate, inserting the end part of the pipeline at the oil supply level inlet below the liquid level of the oil supply level oil tank, recording the time T when the lubricating oil medium flows from the oil supply level oil tank to the oil supply level inlet of the lubricating oil pump, and judging whether the lubricating oil pump has the air.
Preferably, when the time T is greater than the specified time, it is determined that the oil pump has an air lock problem, otherwise the oil pump does not have an air lock problem.
The invention has the advantages that:
by the device and the method, whether the lubricating oil pump has the problem of air lock can be verified by the lubricating oil pump ground bench tester, and the failure of starting the engine caused by the fact that the lubricating oil pump with the problem of air lock is assembled to the engine is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a lubricating oil pump air plug verification test device according to the present invention.
In the figure, a motor 1, a lubricating oil pump 2, an oil supply level oil tank 3, an oil return level oil tank 4, a valve 5, a pressure gauge 6 and a pipeline 7 are arranged.
Detailed Description
The invention is realized by the following technical scheme.
As shown in fig. 1, a testing device for checking an air lock of a lubricating oil pump comprises a driving device, a lubricating oil pump 2, an oil supply level oil tank 3 and an oil return level oil tank 4, wherein the lubricating oil pump 2 is driven by the driving device, the driving device can adopt a motor 1 or a combination of the motor and a speed change gear box, the oil supply level and the oil return level of the lubricating oil pump are respectively connected with the oil supply level oil tank 3 and the oil return level oil tank 4 by using a pipeline 7, the pipeline 7 at an oil supply level inlet of the lubricating oil pump 2 uses a transparent hose capable of observing liquid flow, and the end part of the pipeline 7 can be controlled to be separated from or inserted into a lubricating oil medium of the oil. The oil supply level oil tank 3 ensures the height from the oil tank liquid level to the oil supply level inlet of the lubricating oil pump by using a structure capable of adjusting the height. A pipeline 7 at the outlet of the oil supply stage is provided with a valve 5 and a pressure gauge 6.
When the test is started, an inlet of a pipeline 7 at an inlet of an oil supply level of the lubricating oil pump 2 is inserted below the level of lubricating oil in an oil supply level oil tank 3, the lubricating oil pump 2 is driven to rotate to a specified rotating speed by using the motor 1, the pressure of an outlet of the oil supply level is adjusted to a specified pressure by using a valve 5 on the pipeline 7 at an outlet of the oil supply level, and the pressure of the outlet of the oil supply level of the lubricating oil pump 2 is recorded by using a pressure gauge 6; stopping the motor 1, adjusting the height of the oil supply level oil tank 3 to ensure that the height H from the liquid level to the oil supply level inlet of the lubricating oil pump 2 is up to a specified value (simulating the height from the liquid level of the engine oil tank to the oil supply level inlet), separating the end part of the pipeline 7 at the oil supply level inlet from the lubricating oil medium in the oil supply level oil tank 3, starting the motor 1 to drive the lubricating oil pump 2 to a specified rotating speed and stably operate, inserting the inlet of the pipeline 7 at the oil supply level inlet below the liquid level of the lubricating oil medium in the oil supply level oil tank 3, recording the time T when the lubricating oil medium flows from the oil supply level oil tank 3 to the oil supply level inlet of the lubricating oil pump 2, and judging whether the lubricating oil pump. And when the time T is greater than the specified time, judging that the air lock problem exists in the lubricating oil pump, otherwise, judging that the air lock problem does not exist in the lubricating oil pump.
The principle of the method is that the working state of the lubricating oil pump after the lubricating oil pump is installed on an engine is simulated through a ground rack device, particularly the height from the liquid level of an oil tank of the engine to an inlet of the lubricating oil pump is simulated, and whether the lubricating oil pump can supply oil within a specified time in the starting process of the engine after the lubricating oil pump is installed on the engine is judged by measuring oil suction time of the lubricating oil pump. The device for realizing the function has the advantages of simple structure principle, less parameters to be measured and easy operation. By using the device and the test method, whether the air lock phenomenon exists can be judged quickly and effectively before the lubricating oil pump is assembled to the engine, so that optimized remedial measures are taken in advance, the phenomenon that the engine works after being installed to the engine is influenced, and the starting failure fault is generated. The time cost and the economic cost generated by repeated disassembly and assembly of the engine can be effectively reduced.
The above-mentioned embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (9)
1. The utility model provides a lubricating oil pump air lock verification test device, its characterized in that includes drive arrangement, lubricating oil pump (2), fuel feeding level oil tank (3) and oil return level oil tank (4), and drive arrangement is used for driving lubricating oil pump (2), and the fuel feeding level and the oil return level of lubricating oil pump (2) link to each other through pipeline (7) with fuel feeding level oil tank (3) and oil return level oil tank (4) respectively.
2. The lubricating oil pump air plug verification test device as claimed in claim 1, wherein the oil-supply-level oil tank (3) adopts a structure with adjustable height.
3. A lube pump airlock verification test unit as claimed in claim 1, wherein the end of the line (7) connecting the supply-grade tank (3) can be disconnected or plugged into the lubricating medium of the supply-grade tank (3).
4. The testing device for verifying the air plug of the lubricating oil pump as claimed in claim 1, wherein a valve (5) and a pressure gauge (6) are arranged on a pipeline (7) at the outlet of the oil supply stage.
5. The lubricating oil pump air lock verification test device of claim 1, wherein the driving device adopts a motor or a combination of the motor and a speed change gear box.
6. The testing device for the verification of the air plug of the lubricating oil pump as claimed in claim 1, wherein the pipeline (7) at the oil supply stage outlet of the lubricating oil pump (2) uses a transparent hose.
7. The device for testing the verification of the air plug of the lubricating oil pump as claimed in claim 2, wherein the structure capable of adjusting the height comprises a hydraulic lifting device and an air pressure lifting device.
8. The method for testing by using the lubricating oil pump air plug verification test device as claimed in any one of claims 1 to 7 is characterized by comprising the following test processes: when a test is started, a pipeline (7) at an inlet of an oil supply level of a lubricating oil pump (2) is inserted below the liquid level of a lubricating oil medium of an oil supply level oil tank (3), the lubricating oil pump (2) is driven to run to a specified rotating speed by using a driving device, the pressure of an outlet of the oil supply level is adjusted to a specified pressure by using a valve (5) on the pipeline (7) at an outlet of the oil supply level, and the pressure of the outlet of the oil supply level of the lubricating oil pump (2) is recorded by using a pressure gauge (6); the method comprises the steps of stopping the operation of a motor (1), adjusting the height of an oil supply level oil tank (3) to ensure that the height H from a liquid level to an oil supply level inlet of a lubricating oil pump (2) is regulated to a specified value, enabling the end part of a pipeline (7) at the oil supply level inlet to be separated from a lubricating oil medium in the oil supply level oil tank (3), starting a driving device to drive the lubricating oil pump (2) to a specified rotating speed and stably operate, inserting the end part of the pipeline (7) at the oil supply level inlet below the liquid level of the oil supply level oil tank (3), recording the time T when the lubricating oil medium flows from the oil supply level oil tank (3) to the oil supply level inlet of the lubricating oil pump (2), and judging whether the lubricating.
9. The method for testing the air lock verification of the lubricating oil pump according to claim 8, wherein when the time T is greater than the specified time, it is determined that the air lock problem exists in the lubricating oil pump, otherwise, the air lock problem does not exist in the lubricating oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744144.3A CN111879518A (en) | 2020-07-29 | 2020-07-29 | Lubricating oil pump air plug verification test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744144.3A CN111879518A (en) | 2020-07-29 | 2020-07-29 | Lubricating oil pump air plug verification test device and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111879518A true CN111879518A (en) | 2020-11-03 |
Family
ID=73201587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010744144.3A Pending CN111879518A (en) | 2020-07-29 | 2020-07-29 | Lubricating oil pump air plug verification test device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111879518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557043A (en) * | 2020-11-26 | 2021-03-26 | 芜湖钻石航空发动机有限公司 | Testing device and testing method for oil cut of low-pressure oil duct of aircraft engine |
-
2020
- 2020-07-29 CN CN202010744144.3A patent/CN111879518A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557043A (en) * | 2020-11-26 | 2021-03-26 | 芜湖钻石航空发动机有限公司 | Testing device and testing method for oil cut of low-pressure oil duct of aircraft engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101196185B (en) | Method of testing self-changing gearbox oil pump assembly | |
| CN104074839B (en) | A kind of hydraulic motor test stand | |
| CN103511396A (en) | Hydraulic pump and hydraulic motor reliability testing device based on power recovery technology | |
| CN202073872U (en) | Driving experiment device of hydraulic motor for airplane generator | |
| CN103411119B (en) | A kind of oil filling system of gearbox offline test stand | |
| CN110529442B (en) | Hydraulic system matched with piston mechanical fatigue test bed | |
| CN202420845U (en) | Online comprehensive performance test bed of transmission case | |
| CN206523300U (en) | Power drilling tool fictitious load experimental rig | |
| CN104454748A (en) | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves | |
| CN111879518A (en) | Lubricating oil pump air plug verification test device and test method | |
| CN113758705A (en) | Test detection method for AT gearbox | |
| CN201844923U (en) | Hydraulic loading system for airplane engine | |
| CN106500992B (en) | A kind of drainage engine kerosene servo mechanism ground experiment method | |
| CN212539628U (en) | Lubricating oil pump air plug verification test device | |
| US9097245B2 (en) | Method and device for refilling and checking the leak-tightness of a fuel injector | |
| CN208310964U (en) | A kind of gearbox lubrication equipment testing device | |
| CN106121991A (en) | A kind of vehicle air compressor performance test stand | |
| CN203604956U (en) | Lubricating oil filling system for gearbox offline test bed | |
| CN204312437U (en) | The synthesis energy saving experimental liquid pressure device of gear pump, relief valve and one-way valve reliability | |
| CN208888077U (en) | Rupture disk fatigue tester | |
| CN201705756U (en) | Testing system of airplane hydraulic power conversion device | |
| CN113281024B (en) | Off-line detection method for hydraulic jigger of steam turbine | |
| CN214945442U (en) | Hydraulic motor test hydraulic system | |
| CN216791651U (en) | Low-temperature test device for lubricating oil system | |
| CN115184036A (en) | Turbocharger exhaust brake negative pressure resistance test device and test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |