CN105973545B - Engine I fulcrums detect the detecting system of fixture and its composition - Google Patents
Engine I fulcrums detect the detecting system of fixture and its composition Download PDFInfo
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- CN105973545B CN105973545B CN201610539345.3A CN201610539345A CN105973545B CN 105973545 B CN105973545 B CN 105973545B CN 201610539345 A CN201610539345 A CN 201610539345A CN 105973545 B CN105973545 B CN 105973545B
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- engine
- fulcrums
- pedestal
- gas hood
- concave surface
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses the detecting systems of a kind of engine I fulcrums detection fixture and its composition, it mainly solves existing in the prior art not dedicated for the detector of detection 93 engine I fulcrum leakproofness of RD, existing detection device detection process is complicated, and secondary cannot use, make the problem that testing cost is huge.It includes the gas hood and pedestal for all having concave surface that engine I fulcrums, which detect fixture,；Gas hood and pedestal are detachably connected；The concave surface of gas hood and the concave surface of pedestal are facing；Simulation table is equipped in the concave surface of pedestal；It is communicated on gas hood and connects mouth；Gas hood includes the first U-shaped frame；The opening of first U-shaped frame is connected with the first connected unit；Pedestal includes the second U-shaped frame；The opening of second U-shaped frame is connected with the second connected unit；First connected unit and the second connected unit are detachably connected.Through the above scheme, invention achieves detection engine I fulcrum air-tightness, the purpose of testing cost is saved.
Description
Technical field
The present invention relates to a kind of engine fulcrum detection devices, specifically, being be related to a kind of engine I fulcrums close
Envelope detection fixture.
Background technology
RD-93 engines are the power plants of FC-1 " brave dragon " fighter plane, by Russian Ke Limofu design bureaus in former RD-
The thrust type h type engine h of the high thrust-weight ratio improved on the basis of 33 engines." brave dragon " fighter plane is that China independently sets
It counts and by the third generation light multipurpose export-oriented fighter plane of China and Pakistani Joint Production manufacture, is already equipped at present
Pakistani 2 air squadrons.
During RD-93 engine lines, I, II, III, IV, V fulcrum must seal, and oil leak cannot occur
Phenomenon, but much there is oil leakage fault in the engine for returning factory, cannot reach seal request, influences the performance of engine；With bar
Ji Sitan air forces " brave dragon " fighter plane military service quantity is stepped up, and the RD-93 engines in line occur more and more
The phenomenon that oil leak.When there is oil leak, when engine performance declines situation, the case where need to being decomposed engine, check each fulcrum, press
Check that situation carries out replacing the work such as fulcrum graphite block.According to statistics, engine frequently occurs test run oil leakage phenomenon, this makes engine
Assembly disintegration again and again carry out.In addition, returning engine that repair in shop has been managed when carrying out test run on rack, also often go out
Existing oil leakage phenomenon, has seriously affected the safety to fix over an engine while also having influenced the progress and cost of engine overhaul.
Currently, not dedicated for the detector of detection RD-93 engine I fulcrum leakproofness, existing detection engine I
The detection process of the equipment of number fulcrum leakproofness is complicated, and is not easy to secondary use；Because engine fulcrum sealing propertytest detects
Number is more, causes detection to be every time required to using new set detection device, therefore cause testing cost huge.
Invention content
The technical problem to be solved by the present invention is to not dedicated for detecting the inspection of RD-93 engine I fulcrum leakproofness
Device is surveyed, existing detection device detection process is complicated, and secondary cannot use, and keeps testing cost huge.
To solve the above-mentioned problems, the present invention provides the following technical solutions：
It includes the gas hood and pedestal for all having concave surface that engine I fulcrums, which detect fixture,；Gas hood and pedestal are detachably connected；
The concave surface of gas hood and the concave surface of pedestal are facing；Simulation table is equipped in the concave surface of pedestal；It is communicated on gas hood and connects mouth；In simulation table
Multiple washers are connected with, washer is between gas hood and pedestal.
Specifically, gas hood includes the first U-shaped frame；The opening of first U-shaped frame is connected with the first connected unit.
Pedestal includes the second U-shaped frame；The opening of second U-shaped frame is connected with the second connected unit；First connected unit and second
Connected unit is detachably connected.
Specifically, the edge of washer is between the first connected unit and the second connected unit.
Specifically, the side for connecing mouth is equipped with first annular boss, the second annular convex platform, third ring successively along its length
Shape boss；It connects mouth to be located at outside the concave surface of gas hood, be connected to gas hood by first annular boss, first annular boss and the second ring
O-ring is equipped between shape boss.
The detecting system of engine I fulcrums detection fixture composition includes engine I fulcrums detection fixture, gas tank；Gas
Tank is connected to by pipeline with third annular convex platform, is equipped with needle valve, gas on the pipeline between gas tank and third annular convex platform successively
Press table.
Compared with prior art, the invention has the advantages that：
(1) present invention simulates work of the engine I fulcrums in RD-93 engines by gas hood, pedestal and simulation table
Make environment, keeps the air-leakage test of engine I fulcrums more accurate；When each engine I fulcrums are there are when nuance, lead to
It crosses and increases or decreases washer, the present invention is made to be suitable for the air-leakage test of each engine I fulcrums.
(2) first annular boss is connect with gas hood in the present invention, and O shapes are equipped between first annular boss and second boss
Circle；First annular boss makes to connect mouth with O-ring and is connected with gas hood closer, makes the better tightness of the present invention, and then make inspection
The result of survey is more acurrate；It can be used for multiple times, relatively existing detection device has saved testing cost.
(3) the sealing detection clamp member of engine I fulcrums is few, has the characteristics that small, easy to operate, solves
Sealing propertytest problem of the engine I fulcrums in single-piece；The sealing inspection of the sealing detection fixture composition of engine I fulcrums
Examining system makes operator quickly, accurately, easily individually complete the sealing propertytest experiment of each fulcrum；Therefore the present invention is convenient for making
With operation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1.
Fig. 3 is the structural schematic diagram for connecing mouth.
Fig. 4 is the structural schematic diagram for the detecting system for detecting fixture composition.
In above-mentioned attached drawing, the corresponding component names of reference numeral are as follows：
1- gas hoods, 2- pedestals, 3- simulation tables, the first U-shaped framves of 4-, the first connected units of 5-, the second U-shaped framves of 6-, 7- second connect
Connect platform, 8- washers, the first annular boss of 9-, the second annular convex platform of 10-, 11- third annular convex platform, 12-O type circles, 13- gas tanks,
14- needle valves, 15- air gauges, 16- connect mouth.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include but not limited to
The following example.
Embodiment
As shown in Figure 1 to Figure 3, engine I fulcrums detection fixture includes the gas hood 1 and pedestal 2 for all having concave surface；Gas hood
1 and pedestal 2 be detachably connected；The concave surface of gas hood 1 and the concave surface of pedestal 2 are facing；Simulation table 3 is equipped in the concave surface of pedestal 2；Gas
It is communicated on cover 1 and connects mouth 16；Gas hood 1 includes the first U-shaped frame 4；The opening of first U-shaped frame 4 is connected with the first connected unit 5；Bottom
Seat 2 includes the second U-shaped frame 6；The opening of second U-shaped frame 6 is connected with the second connected unit 7；First connected unit 5 and the second connected unit
7 are detachably connected；Multiple washers 8 are connected in simulation table 3；The edge of washer 8 is located at the first connected unit 5 and the second connected unit 7
Between；First connected unit 5 and the second connected unit 7 are bolted by least one.
Wherein, it connects the side of mouth 16 and is equipped with first annular boss 9, the second annular convex platform 10, the successively along its length
Three annular convex platform 11；It connects mouth 16 to be located at outside the concave surface of gas hood 1, be connected to gas hood 1 by first annular boss 9, it is first annular
O-ring 12 is equipped between boss 9 and the second annular convex platform 10.
Wherein, washer 8, bolt quantity determine according to actual needs；The processing technology of simulation table 3 and engine I
The shaft processing technology of number fulcrum is the same, and using identical roughness, identical material, simulated engine I fulcrums are in RD-93
Working environment in engine keeps sealing propertytest more acurrate；When each engine I fulcrums are there are when nuance, pass through increasing
Add deduct few washer 8, and the present invention is suitable for the air-leakage test of each engine I fulcrums；Washer 8 is made of oil resistant rubber,
Also it can be made of other materials with oil resistant effect；First annular boss 9 and O-ring 12 make to connect mouth 16 and gas hood 1 connects
It is closer, make the better tightness of the present invention, and then keep the result of detection more acurrate.
As shown in Figure 3 and Figure 4, the detecting system of engine I fulcrums detection fixture composition includes the inspection of engine I fulcrums
Survey fixture, gas tank 13；Gas tank 13 is connected to by pipeline with third annular convex platform 11, between gas tank 13 and third annular convex platform 11
Needle valve 14, air gauge 15 are equipped on pipeline successively；Nitrogen or air are full of when use in gas tank 13.
Wherein, needle valve 14 is that double card covers needle valve or other kinds of needle valve；Needle valve 14 is accurately controlled
The inlet of nitrogen or air keeps sealing propertytest more accurate and reliable；Air gauge 15 can select finger gas according to actual needs
Press table or digital air gauge；Air gauge 15 is accurate air gauge.
As shown in Figures 1 to 4, when the present embodiment is in use, engine I fulcrums are put into gas hood 1 and is fixed on simulation
On platform 3, in addition required amount of washer 8, the first connected unit 5 and the second connected unit 7 are connected and compressed by bolt, by the
Three annular convex platform 11 make the present invention be connected to gas tank 13, and opening needle valve 14 makes nitrogen or air into gas inlet cover 1, is wanted when reaching
When the pressure asked, needle valve 14 is closed, it is more than the defined time that whether observation air gauge 15, which keeps pressure,；Engine I fulcrums
It must not be less than 20 seconds it is required that being down to the time used in 0.05Kgf/cm2 from 0.4Kgf/cm2；When the time being more than 20 seconds, then it is detected
Engine I fulcrum good airproof performances, engine I fulcrum leakproofness on the contrary then detected is undesirable；Master of the present invention
It is used for RD-93 engine I fulcrum sealing propertytests.
Sealing detection fixture by engine I fulcrums is small, easy to operate, solves engine I fulcrums in list
The problem of sealing propertytest when part.The application of the sealing detection fixture of engine I fulcrums so that operator quickly, it is accurate,
Easily individually complete the sealing propertytest experiment of each fulcrum.Currently, the sealing detection fixture of engine I fulcrums has been used for ten
The experiment of several engine densification device sealing propertytests, the engine after densification device assembly after pass the test are tried in rack
Che Shi does not occur altering the phenomenon of oil.In addition, after all sealing detection fixture overhaulings for having used engine I fulcrums
Fulcrum densification device engine in other factory in use, also do not find to alter oily phenomenon, longest works after these engine overhauls
Time is more than 300 hours；It can be seen that the application of the sealing detection fixture of engine I fulcrums greatly improves and starts
The reliability of machine.
Economic and Efficiency Analysis
The sealing detection clamp member of engine I fulcrums is few, simple in structure, and the material used is common 45# steel
And oil resistant rubber, keep the sealing detection fixture of engine I fulcrums easy to process, cost is relatively low.Its mid-early stage investigates design charges
With 60,000 yuan, 20,000 yuan of expense is fabricated, 20,000 yuan of equipment acceptance testing expenses amount to 100,000 yuan of cost.
It is counted, each fulcrum assembly of every engine of evaluation, is repaired or more according to the service condition of other factory's RD-93 engines
It changes, tests to obtain equivalent 80,000 yuan of the RMB of cost.Along with each cost of labor, through statistics, every engine can save maintenance at
This 300,000 yuans.
In addition, the application of the sealing detection fixture due to engine I fulcrums, engine can be reduced when returning repair in shop reason
Period, and largely saved repair cost.Therefore, it is calculated according to 50 engines being on active service at present in Pakistan, it should
Tooling can be cost-effective 20,000,000 yuans of company, and great economic benefit is brought for company.
Currently, 5 fulcrums of certain domestic h type engine h are consistent with RD-93 engines, the mode of branch dot encapsulation is also identical.
Therefore, the sealing detection fixture of engine I fulcrums extends on the engine of the model, improves the reliable of the engine
Property, while being economic benefit and social benefit that enterprise brings bigger.
According to above-described embodiment, the present invention can be realized well.It is worth noting that before based on said structure design
It puts, to solve same technical problem, even if some made in the present invention are used without substantive change or polishing
Technical solution essence still as the present invention, therefore it should also be as within the scope of the present invention.
Claims (6)
1. a kind of engine I fulcrums detect fixture, it is characterised in that：Gas hood (1) and pedestal (2) including all having concave surface；
Gas hood (1) and pedestal (2) are detachably connected；The concave surface of gas hood (1) and the concave surface of pedestal (2) are facing；In the concave surface of pedestal (2)
Equipped with simulation table (3)；It is communicated on gas hood (1) and connects mouth (16)；Multiple washers (8), washer (8) position are connected in simulation table (3)
Between gas hood (1) and pedestal (2).
2. engine I fulcrums according to claim 1 detect fixture, it is characterised in that：Gas hood (1) includes first U-shaped
Frame (4)；The opening of first U-shaped frame (4) is connected with the first connected unit (5).
3. engine I fulcrums according to claim 2 detect fixture, it is characterised in that：Pedestal (2) includes second U-shaped
Frame (6)；The opening of second U-shaped frame (6) is connected with the second connected unit (7)；First connected unit (5) and the second connected unit (7) can
Dismantling connection.
4. engine I fulcrums according to claim 3 detect fixture, it is characterised in that：The edge of washer (8) is located at the
Between one connected unit (5) and the second connected unit (7).
5. engine I fulcrums according to claim 4 detect fixture, it is characterised in that：The side of mouth (16) is connect along it
Length direction is equipped with first annular boss (9), the second annular convex platform (10), third annular convex platform (11) successively；Connect mouth (16) position
In outside the concave surface of gas hood (1), it is connected to gas hood (1) by first annular boss (9), first annular boss (9) and the second ring
O-ring (12) is equipped between shape boss (10).
6. the detecting system of engine I fulcrums detection fixture composition according to claim 5, it is characterised in that：Including
Engine I fulcrums detect fixture, gas tank (13)；Gas tank (13) is connected to by pipeline with third annular convex platform (11), gas tank
(13) needle valve (14), air gauge (15) are equipped on the pipeline between third annular convex platform (11) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539345.3A CN105973545B (en) | 2016-07-11 | 2016-07-11 | Engine I fulcrums detect the detecting system of fixture and its composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539345.3A CN105973545B (en) | 2016-07-11 | 2016-07-11 | Engine I fulcrums detect the detecting system of fixture and its composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105973545A CN105973545A (en) | 2016-09-28 |
| CN105973545B true CN105973545B (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610539345.3A Active CN105973545B (en) | 2016-07-11 | 2016-07-11 | Engine I fulcrums detect the detecting system of fixture and its composition |
Country Status (1)
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5961737A (en) * | 1982-10-01 | 1984-04-09 | Toshiba Corp | Apparatus for detecting leakage of lined storage tank |
| CN2062044U (en) * | 1989-11-22 | 1990-09-12 | 重庆市机电设计研究院 | Dry-wet type leakage detecting device |
| JP5316174B2 (en) * | 2009-04-03 | 2013-10-16 | トヨタ自動車株式会社 | Leak inspection apparatus and leak inspection method |
| CN103091056B (en) * | 2013-01-14 | 2015-02-18 | 清华大学 | Multifunctional brush type sealing experiment system |
| CN204214612U (en) * | 2014-10-16 | 2015-03-18 | 广州广船国际股份有限公司 | Air tightness detection apparatus |
| CN204346655U (en) * | 2014-11-21 | 2015-05-20 | 山西太钢不锈钢股份有限公司 | Bell furnace air-tightness detection device |
| CN105032876B (en) * | 2015-06-13 | 2017-07-14 | 贵州凯阳航空发动机有限公司 | Fixture is backwashed for fuel manifold nozzle |
| CN205879469U (en) * | 2016-07-11 | 2017-01-11 | 贵州凯阳航空发动机有限公司 | Engine I fulcrum testing anchor clamps and detecting system who constitutes thereof |
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2016
- 2016-07-11 CN CN201610539345.3A patent/CN105973545B/en active Active
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| CN105973545A (en) | 2016-09-28 |
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Effective date of registration: 20191114 Address after: 550000 No. 1111 Liyang Road, Baiyun District, Guiyang City, Guizhou Province Co-patentee after: China Natioanl Aero-Technology Import & Export Corporation Patentee after: Chinese Hangfa Guizhou Liyang aero Power Co. Ltd. Address before: 550000 room 133, building, Jinyang science and Technology Industrial Park, Guiyang hi tech Zone, Guizhou Patentee before: GUIZHOU KAIYANG AERO-ENGINE CO., LTD. |