CN203164107U - Tester for testing characteristics of high-temperature high-speed titanium fire preventing material - Google Patents

Tester for testing characteristics of high-temperature high-speed titanium fire preventing material Download PDF

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Publication number
CN203164107U
CN203164107U CN 201320109763 CN201320109763U CN203164107U CN 203164107 U CN203164107 U CN 203164107U CN 201320109763 CN201320109763 CN 201320109763 CN 201320109763 U CN201320109763 U CN 201320109763U CN 203164107 U CN203164107 U CN 203164107U
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China
Prior art keywords
temperature
wheel disc
speed
simulation
titanium fire
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CN 201320109763
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Inventor
于月光
宣海军
任先京
沈婕
国俊丰
章德铭
孙建刚
张娜
李国强
刘建明
杨永祺
鲁秋源
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INSTITUTE OF PROCESS EQUIPMENT ZHEJIANG UNIVERSITY
Beijing General Research Institute of Mining and Metallurgy
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INSTITUTE OF PROCESS EQUIPMENT ZHEJIANG UNIVERSITY
Beijing General Research Institute of Mining and Metallurgy
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Abstract

The utility model discloses a tester for testing characteristics of a high-temperature high-speed titanium fire preventing material. The tester comprises a test bed base, a drive part, a micro feeding mechanism, a pressure-adjusting test cabin, a lubricating part, a simulation blade disc part, a gas heater and a control part, wherein the simulation blade disc part comprises a wheel disc; a simulation blade is arranged on the edge part of the wheel disc; the micro feeding mechanism comprises a precise lead screw transmission part; a test sample tool is connected on the precise lead screw transmission part; the clamping end of the test sample tool is aligned to the edge part of the wheel disc; the simulation blade disc part is arranged in the pressure-adjusting test cabin; a gas outlet of the gas heater is connected with a gas inlet of the pressure-adjusting test cabin; and a gas inlet of the pressure-adjusting test cabin is aligned to a scraping test position. The tester for testing characteristics of the high-temperature high-speed titanium fire preventing material can be used for simulating the roller-crushing and scratching under a true working condition and can be better used for researching a titanium fire fault mechanism of a titanium alloy, a flame-retardant mechanism of flame-retardant alloy as well as an acting mechanism of alloy elements, the acting mechanism of a flame-retardant coating, high-temperature strength under the material flame-retardant condition and a flame resistance evaluating method.

Description

The anti-titanium fire of high temperature and high speed material behavior testing experiment machine
Technical field
The utility model relates to a kind of anti-titanium fire material behavior testing experiment equipment, relates in particular to the anti-titanium fire of a kind of high temperature and high speed material behavior testing experiment machine.
Background technology
Propulsion system as advanced fighter plane, reach the aircraft unconventional manoeuvre Capability Requirement that high specific thrust, not afterburning supersonic speed cruised, provided vectored thrust, high thrust-weight ratio (about thrust to weight ratio 10) is the key technical index that engine reaches designing requirement.And want the design of engine complete machine to reach the technical requirement of thrust-weight ratio 10 one-levels, one of crucial restraining factors are construction weights; Civilian engine also requires low weight, and weight is more low, and the aircraft oil consumption rate is just more low, and the aircraft utilization cost also just descends thereupon.
Titanium alloy has obtained widespread use owing to have excellent properties such as high specific strength, corrosion stability and thermotolerance in aeromotor industry.At present, about 3/4 titanium alloy is used for Aero-Space and war products in the world.The propulsion system of the advanced opportunity of combat of China have also adopted a large amount of titanium alloys inevitably, and wherein most of part of compressor part has just adopted titanium alloy material.But there are fatal sustained combustion tender subject in titanium and common alloy of titanium, and easy ablaze characteristic is arranged, and can cause titanium fire fault.The reason of catching fire is: under the worn out situation of seal coating that does not have on seal coating or the casing, and blade and casing friction and catch fire.
Advanced now engine requires higher thrust, and lighter weight, the temperature of engine core machine high-pressure compressor, pressure, gas velocity are also just higher, changes, the stator gap is littler, and the possibility that the titanium fire takes place is also just more big.
At present, aspect the research of anti-titanium fire designing technique, in order to reduce the probability of titanium burn, reduce the damage of titanium burn, both at home and abroad according to acquired achievement in research, studied multiple anti-titanium fire designing technique:
As: aspect engine design, commentaries on classics, stator parts change titanium-steel construction into by titanium-titanium structure; Apply flame retardant coating at titanium alloy surface; Increase the gap of rotator tip and casing, etc.
Research at the anti-titanium fire of aeromotor derives multiple test method and relevant device: as the early stage U.S. small-sized wind-tunnel titanium fire experimental study platform, the titanium fire burns characteristic test device of Russia etc.But their common deficiency is to swipe with high temperature and high speed, air flow pressure, the high gas flow amount of actual condition to also have very big distance.
There are some researches show that when scraping linear velocity when improving gradually, the fire retardant mechanism of fire proofing can little by little change, especially when the scraping linear velocity surpasses 100m/s, and existing testing equipment can not be simulated the scraping characteristic under the actual device part running environment well.
The utility model content
The purpose of this utility model provides a kind of anti-titanium fire of high temperature and high speed material behavior testing experiment machine that can effectively cover titanium fire fault test under the real working condition.
The purpose of this utility model is achieved through the following technical solutions:
The anti-titanium fire of high temperature and high speed of the present utility model material behavior testing experiment machine comprises testing table pedestal, drive part, micro-feed mechanism, pressure regulation experimental cabin, lubricated part, simulation leaf disc portion, gas heater and control section;
Described testing table pedestal comprises drive part pedestal and micro-feed mechanism pedestal;
Described simulation leaf disc portion comprises wheel disc, and the edge of described wheel disc is provided with the simulation blade, and the edge of a described wheel disc side relative with described simulation blade is provided with blade weight counterbalance;
Described micro-feed mechanism comprises the precision lead screw running part, and the sample frock is connected described precision lead screw running part, and the bare terminal end of described sample frock is over against the edge of described wheel disc;
Described simulation leaf disc portion places in the described pressure regulation experimental cabin, and the gas outlet of described gas heater is connected with the air intake opening of described pressure regulation experimental cabin, and the air intake opening of described pressure regulation experimental cabin is over against the scraping experiment position.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the anti-titanium fire of the high temperature and high speed that provides among the utility model embodiment material behavior testing experiment machine, can simulate under the real working condition to the mill and the scraping, the mechanism that is used for titanium alloy titanium fire fault preferably, fire-retardant titanium alloy fire retardant mechanism and alloy element action mechanism, the mechanism of action of flame retardant coating, the elevated temperature strength research under the fire-retardant condition of material and the research of fire resistance evaluation method.The scraping linear velocity in 0~350m/s scope, pressure regulating chamber internal pressure range of adjustment 0~5MPa, pressure regulating chamber both air flow modulation 0~10kg/s, the scraping temperature environment in 0~800 ℃ of scope, the scraping bumping rub the invasion speed at 1.5 μ m~2250 mu m ranges; Can effectively cover titanium fire fault test under the real working condition.
Description of drawings
The high temperature and high speed that Fig. 1 provides for the utility model embodiment is prevented the structural representation of titanium fire material properties test testing machine;
Fig. 2 is the enlarged diagram of Fig. 1;
Fig. 3 is the structural representation of gas heater among the utility model embodiment;
Fig. 4 is the structural representation of control section among the utility model embodiment;
Fig. 5 is the structural representation of drive part among the utility model embodiment one;
Fig. 6 is the structural representation of drive part among the utility model embodiment two;
Fig. 7 is for simulating blade-to mill scraping sample scraping synoptic diagram among the utility model embodiment.
Among the figure: 1; gas flow sensor, 2; blade weight counterbalance, 3; high-temperature bearing; 4; wheel disc, 5; the overvoltage protection valve, 6; the lubricating fluid casing; 7; the lubricating fluid refluxing opening; 8; ebullator, 9; pressure transducer, 10; force cell; 11; the sample frock; 12; the simulation blade, 13; to mill scraping sample, 14; thermopair; 15; pressure regulation experimental cabin venting; 16; control panel, 17; leaf dish rotary speed controling unit, 18; lubricated part control module; 19; test figure is printed; 20; little feeding control module, 21; pressure regulation cabin control module, 22; the control power supply; 23; the control cabinet; 24; the well heater tank body, 25; heater block, 26; electric heating element; 27; the gas heater control module; 28; the precision lead screw transmission, 29; servomotor, 30; pressure regulation experimental cabin cabin body; 31; monitor window; 32; hydrocooler, 33; big belt wheel, 34; belt; 35; small pulley; 36; drive motor, 37; damper, 38; principal axis of compliance; 39 rolling bearings; 40; high-speed bearing, 41; intermediate shaft, 42; electric machine main shaft.
Embodiment
To be described in further detail the utility model embodiment below.
The anti-titanium fire of high temperature and high speed of the present utility model material behavior testing experiment machine, its preferable embodiment is:
Comprise testing table pedestal, drive part, micro-feed mechanism, pressure regulation experimental cabin, lubricated part, simulation leaf disc portion, gas heater and control section;
Described testing table pedestal comprises drive part pedestal and micro-feed mechanism pedestal;
Described simulation leaf disc portion comprises wheel disc, and the edge of described wheel disc is provided with the simulation blade, and the edge of a described wheel disc side relative with described simulation blade is provided with blade weight counterbalance;
Described micro-feed mechanism comprises the precision lead screw running part, and the sample frock is connected described precision lead screw running part, and the bare terminal end of described sample frock is over against the edge of described wheel disc;
Described simulation leaf disc portion places in the described pressure regulation experimental cabin, and the gas outlet of described gas heater is connected with the air intake opening of described pressure regulation experimental cabin, and the air intake opening of described pressure regulation experimental cabin is over against the scraping experiment position.
The edge of a described wheel disc side relative with described simulation blade is provided with blade weight counterbalance.
Described simulation blade and blade weight counterbalance are installed to the edge of described wheel disc by pin.
Described drive part comprises motor, and the main shaft of motor is connected with the rotation axis of described wheel disc with principal axis of compliance by belt driver successively.Described belt driver comprises the big belt wheel of the active that is loaded on the electric machine main shaft and is loaded on the driven small pulley of described principal axis of compliance one end, the other end of described principal axis of compliance is connected with the rotation axis of described wheel disc, be connected by belt between the big belt wheel of described active and the driven small pulley, described principal axis of compliance is equipped with extruding rubber o-ring damper.
The main shaft of described motor also can directly be connected with the rotation axis of described wheel disc by intermediate shaft.
Described precision lead screw running part is connected with servomotor, and described sample frock is provided with thermopair and hydrocooler, is provided with force cell between described sample frock and the described precision lead screw running part.
Described gas heater comprises heater pedestal, well heater tank body, electric heater unit and overvoltage protection valve;
Described pressure regulation experimental cabin is provided with venting, monitor window, pressure transducer.
The above-mentioned anti-titanium fire of high temperature and high speed material behavior testing experiment machine of the present utility model carries out the method for scraping experiment, comprises step:
To be installed on the sample frock mill scraping sample, adjust sample to the position that is fit to, and the initial point of definite feed motion;
Operation control section power supply makes device power also keep, and the work of micro-feed mechanism hydrocooler also keeps;
The lubricated part control of operation, feasible lubricated part runs well and keeps;
The control of operation leaf dish rotating speed makes wheel disc and simulation blade raising speed to rotating speed of target and maintenance;
The control of operating gas well heater makes the pressure of pressure regulation experimental cabin, gas flow reach target value set;
Operate little feeding control, make mill scraping sample is carried out the radial feed motion with the feed rate of setting;
By the monitor window viewing test process of pressure regulation experimental cabin, after test is finished, close each equipment, dismounting is simulated blade and to mill scraping sample, is measured to its simulation blade with to grinding the scraping sample, and record data.
Comprise following test parameters formulation in the process of the test:
Carry out the blade tip linear velocity of test simulation by needs, according to the diameter of wheel disc-simulation blade, be converted into the wheel disc speed of mainshaft again, i.e. Shi Yan rotating speed of target;
Carry out the single blade sample of test simulation-to mill scraping sample scrape depth by needs, the quantity of the simulation blade being installed according to rotating speed and the wheel disc of wheel disc-main shaft gets scraping p.s. number of times again, and the single scrape depth multiply by the speed that scraping p.s. number of times is converted into the sample feeding;
According to the serviceability temperature of simulation blade, formulate the heating-up temperature of gas heater;
According to the working pressure of simulation blade, formulate keep-uping pressure of pressure regulation experimental cabin;
According to the gas flow rate of the working environment of simulating blade, formulate the gas flow of gas heater.
The utility model can be used for the fire resistance under test turbine blade and the sample high temperature and high speed scraping operating mode, especially in the anti-titanium fire of aero-turbine The Study on Fault field, the mechanism that is used for titanium alloy titanium fire fault preferably, fire-retardant titanium alloy fire retardant mechanism and alloy element action mechanism, the mechanism of action of flame retardant coating, the elevated temperature strength research under the fire-retardant condition of material and the research of fire resistance evaluation method.
Specific embodiment, extremely shown in Figure 7 as Fig. 1.
The utility model comprises two key elements: testing machine and test method.
A key element of the present utility model provides the anti-titanium fire of a kind of high temperature and high speed material behavior testing experiment machine, this testing machine employing simulation blade and anti-titanium fire material plane are to grinding the scraping sample as subjects, the simulation blade is installed on the wheel disc, wheel disc-simulation blade rotor system is urged to needed rotating speed by drive part, thereby makes blade tip reach required linear velocity; Mill scraping sample is installed in above the sample frock, drives the motion of sample parts radial feed by micro-feed mechanism, adopt the precision ball screw platform, can be so that sample carries out the stable feed motion of micron order.There is gas heater that high temperature and high speed gas heating sample is provided, simultaneously, makes the pressure regulation experimental cabin reach the interior prescribed target pressure of 0~5MPa, produce the intended target gas flow rate in 0~10kg/s.Make testing machine reach the requirement of simulated engine working condition.
Another key element of the present utility model provides the test method of a whole set of anti-titanium fire material behavior test, with rotating vane under certain linear velocity motion state with to the radially relative displacement of mill scraping sample as scraping load, pressure with " blade tip linear velocity ", " imitation leaf temperature ", impact air-flow speed, pressure regulation experimental cabin, " blade-material sample single scraping amount " is as relatively independent important factor in order, examination simulation blade and sample scraping flame-retarding characteristic that mill is swiped can provide strong basic data for Flame Retardant Mechanism simultaneously.Testing equipment and test method have guaranteed the scraping experiment of the full operating mode of reliable simulation, can obtain the result consistent with actual sound structure pair materials scraping characteristic.
Compared with prior art, advantage of the present utility model is:
1, utility model arranges simulation blade-material sample scraping form, makes sample and simulation blade have that being equal to obturages in the actual turbine engine joins secondary scraping characteristic.
2, simulation blade tip linear velocity of the present utility model can be tested under the state up to 350m/s, and this linear velocity can be simulated the high-speed line speed requirement in most of turbine engines.
3, the utility model device can carry out the scraping experiment of " single blade+counterweight " or multiple-blade form.
4, the utility model device can make sample step-less adjustment in the scope of feed rate 1.5-2250 μ m/s, owing to adopt servomotor and precision lead screw transmission, when guaranteeing that feed rate satisfies the scraping characteristic of simulating under the various operating modes of turbine engine, the stability of feed rate and the reliability of test have also been guaranteed.
5, the utility model device can make sample carry out the abrasion test up to 300m/s under 800 ℃ state, has satisfied the testing requirements of anti-titanium fire material in most of turbine engines.
6, the utility model device can make to mill scraping sample under the pressure environment of 0~5MPa, carries out scraping experiment, has satisfied the testing requirements of anti-titanium fire material in most of turbine engines.
7, the utility model device can make to mill scraping sample under the gas flow rate environment of 0~10kg/s, carries out scraping experiment, has satisfied the testing requirements of anti-titanium fire material in most of turbine engines.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.

Claims (8)

1. the anti-titanium fire of a high temperature and high speed material behavior testing experiment machine is characterized in that, comprises testing table pedestal, drive part, micro-feed mechanism, pressure regulation experimental cabin, lubricated part, simulation leaf disc portion, gas heater and control section;
Described testing table pedestal comprises drive part pedestal and micro-feed mechanism pedestal;
Described simulation leaf disc portion comprises wheel disc, and the edge of described wheel disc is provided with the simulation blade, and the edge of a described wheel disc side relative with described simulation blade is provided with blade weight counterbalance;
Described micro-feed mechanism comprises the precision lead screw running part, and the sample frock is connected described precision lead screw running part, and the bare terminal end of described sample frock is over against the edge of described wheel disc;
Described simulation leaf disc portion places in the described pressure regulation experimental cabin, and the gas outlet of described gas heater is connected with the air intake opening of described pressure regulation experimental cabin, and the air intake opening of described pressure regulation experimental cabin is over against the scraping experiment position.
2. the anti-titanium fire of high temperature and high speed according to claim 1 material behavior testing experiment machine is characterized in that the edge of a described wheel disc side relative with described simulation blade is provided with blade weight counterbalance.
3. the anti-titanium fire of high temperature and high speed according to claim 2 material behavior testing experiment machine is characterized in that described simulation blade and blade weight counterbalance are installed to the edge of described wheel disc by pin.
4. testing machine according to claim 1 is characterized in that, described drive part comprises motor, and the main shaft of motor is connected with the rotation axis of described wheel disc with principal axis of compliance by belt driver successively.
5. high temperature and high speed according to claim 4 is prevented titanium fire material behavior testing experiment machine, it is characterized in that, described belt driver comprises the big belt wheel of the active that is loaded on the electric machine main shaft and is loaded on the driven small pulley of described principal axis of compliance one end, the other end of described principal axis of compliance is connected with the rotation axis of described wheel disc, be connected by belt between the big belt wheel of described active and the driven small pulley, described principal axis of compliance is equipped with extruding rubber o-ring damper.
6. the anti-titanium fire of high temperature and high speed according to claim 1 material behavior testing experiment machine is characterized in that described drive part comprises motor, and the main shaft of described motor is connected with the rotation axis of described wheel disc by intermediate shaft.
7. high temperature and high speed according to claim 1 is prevented titanium fire material behavior testing experiment machine, it is characterized in that, described precision lead screw running part is connected with servomotor, described sample frock is provided with thermopair and hydrocooler, is provided with force cell between described sample frock and the described precision lead screw running part.
8. the anti-titanium fire of high temperature and high speed according to claim 1 material behavior testing experiment machine is characterized in that described gas heater comprises heater pedestal, well heater tank body, electric heater unit and overvoltage protection valve;
Described pressure regulation experimental cabin is provided with venting, monitor window, pressure transducer.
CN 201320109763 2013-03-11 2013-03-11 Tester for testing characteristics of high-temperature high-speed titanium fire preventing material Active CN203164107U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103149149A (en) * 2013-03-11 2013-06-12 北京矿冶研究总院 Tester for high-temperature high-speed titanium fire prevention material characteristic test and testing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103149149A (en) * 2013-03-11 2013-06-12 北京矿冶研究总院 Tester for high-temperature high-speed titanium fire prevention material characteristic test and testing method

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